5 Changes between 0.9.8b and 0.9.9 [xx XXX xxxx]
7 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
10 *) Replace the algorithm specific calls to generate keys in "req" with the
14 *) Update PKCS#7 enveloped data routines to use new API. This is now
15 supported by any public key method supporting the encrypt operation. A
16 ctrl is added to allow the public key algorithm to examine or modify
17 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
21 *) Add a ctrl to asn1 method to allow a public key algorithm to express
22 a default digest type to use. In most cases this will be SHA1 but some
23 algorithms (such as GOST) need to specify an alternative digest. The
24 return value indicates how strong the prefernce is 1 means optional and
25 2 is mandatory (that is it is the only supported type). Modify
26 ASN1_item_sign() to accept a NULL digest argument to indicate it should
27 use the default md. Update openssl utilities to use the default digest
28 type for signing if it is not explicitly indicated.
31 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
32 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
33 signing method from the key type. This effectively removes the link
34 between digests and public key types.
37 *) Add an OID cross reference table and utility functions. Its purpose is to
38 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
39 rsaEncryption. This will allow some of the algorithm specific hackery
40 needed to use the correct OID to be removed.
43 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
44 structures for PKCS7_sign(). They are now set up by the relevant public
48 *) Add provisional EC pkey method with support for ECDSA and ECDH.
51 *) Add support for key derivation (agreement) in the API, DH method and
55 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
56 public and private key formats. As a side effect these add additional
57 command line functionality not previously available: DSA signatures can be
58 generated and verified using pkeyutl and DH key support and generation in
63 [Oliver Tappe <zooey@hirschkaefer.de>]
65 *) New make target "install_html_docs" installs HTML renditions of the
67 [Oliver Tappe <zooey@hirschkaefer.de>]
69 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
70 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
71 support key and parameter generation and add initial key generation
72 functionality for RSA.
75 *) Add functions for main EVP_PKEY_method operations. The undocumented
76 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
77 EVP_PKEY_{encrypt,decrypt}_old.
80 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
81 key API, doesn't do much yet.
84 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
85 public key algorithms. New option to openssl utility:
86 "list-public-key-algorithms" to print out info.
89 *) Implement the Supported Elliptic Curves Extension for
90 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
93 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
94 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
97 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
98 utilities such as rsa, dsa, dsaparam etc except they process any key
102 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
103 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
104 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
108 *) Initial support for pluggable public key ASN1.
109 De-spaghettify the public key ASN1 handling. Move public and private
110 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
111 algorithm specific handling to a single module within the relevant
112 algorithm directory. Add functions to allow (near) opaque processing
113 of public and private key structures.
116 *) Implement the Supported Point Formats Extension for
117 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
120 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
121 for the psk identity [hint] and the psk callback functions to the
122 SSL_SESSION, SSL and SSL_CTX structure.
125 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
129 SSL_CTX_use_psk_identity_hint
130 SSL_get_psk_identity_hint
132 SSL_use_psk_identity_hint
134 [Mika Kousa and Pasi Eronen of Nokia Corporation]
136 *) Add RFC 3161 compliant time stamp request creation, response generation
137 and response verification functionality.
138 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
140 *) Add initial support for TLS extensions, specifically for the server_name
141 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
142 have new members for a host name. The SSL data structure has an
143 additional member SSL_CTX *initial_ctx so that new sessions can be
144 stored in that context to allow for session resumption, even after the
145 SSL has been switched to a new SSL_CTX in reaction to a client's
146 server_name extension.
148 New functions (subject to change):
151 SSL_get_servername_type()
154 New CTRL codes and macros (subject to change):
156 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
157 - SSL_CTX_set_tlsext_servername_callback()
158 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
159 - SSL_CTX_set_tlsext_servername_arg()
160 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
162 openssl s_client has a new '-servername ...' option.
164 openssl s_server has new options '-servername_host ...', '-cert2 ...',
165 '-key2 ...', '-servername_fatal' (subject to change). This allows
166 testing the HostName extension for a specific single host name ('-cert'
167 and '-key' remain fallbacks for handshakes without HostName
168 negotiation). If the unrecogninzed_name alert has to be sent, this by
169 default is a warning; it becomes fatal with the '-servername_fatal'
172 [Peter Sylvester, Remy Allais, Christophe Renou]
174 *) Whirlpool hash implementation is added.
177 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
178 bn(64,32). Because of instruction set limitations it doesn't have
179 any negative impact on performance. This was done mostly in order
180 to make it possible to share assembler modules, such as bn_mul_mont
181 implementations, between 32- and 64-bit builds without hassle.
184 *) Disable rogue ciphersuites:
186 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
187 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
188 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
190 The latter two were purportedly from
191 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
194 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
195 remain enabled for now, but are just as unofficial, and the ID
196 has long expired; these will probably disappear soon.
199 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
200 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
204 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
205 dedicated Montgomery multiplication procedure, is introduced.
206 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
207 "64-bit" performance on certain 32-bit targets.
210 *) New option SSL_OP_NO_COMP to disable use of compression selectively
211 in SSL structures. New SSL ctrl to set maximum send fragment size.
212 Save memory by seeting the I/O buffer sizes dynamically instead of
213 using the maximum available value.
216 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
217 in addition to the text details.
220 *) Very, very preliminary EXPERIMENTAL support for printing of general
221 ASN1 structures. This currently produces rather ugly output and doesn't
222 handle several customised structures at all.
225 *) Integrated support for PVK file format and some related formats such
226 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
227 these in the 'rsa' and 'dsa' utilities.
230 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
233 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
234 place for the (very old) "NETSCAPE" format certificates which are now
235 handled using new ASN1 code equivalents.
238 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
239 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
240 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
243 *) Modify CRL distribution points extension code to print out previously
244 unsupported fields. Enhance extension setting code to allow setting of
248 *) Add print and set support for Issuing Distribution Point CRL extension.
251 Changes between 0.9.8b and 0.9.8c [xx XXX xxxx]
253 *) Disable the padding bug check when compression is in use. The padding
254 bug check assumes the first packet is of even length, this is not
255 necessarily true if compresssion is enabled and can result in false
256 positives causing handshake failure. The actual bug test is ancient
257 code so it is hoped that implementations will either have fixed it by
258 now or any which still have the bug do not support compression.
261 Changes between 0.9.8a and 0.9.8b [04 May 2006]
263 *) When applying a cipher rule check to see if string match is an explicit
264 cipher suite and only match that one cipher suite if it is.
267 *) Link in manifests for VC++ if needed.
268 [Austin Ziegler <halostatue@gmail.com>]
270 *) Update support for ECC-based TLS ciphersuites according to
271 draft-ietf-tls-ecc-12.txt with proposed changes (but without
272 TLS extensions, which are supported starting with the 0.9.9
273 branch, not in the OpenSSL 0.9.8 branch).
276 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
277 opaque EVP_CIPHER_CTX handling.
280 *) Fixes and enhancements to zlib compression code. We now only use
281 "zlib1.dll" and use the default __cdecl calling convention on Win32
282 to conform with the standards mentioned here:
283 http://www.zlib.net/DLL_FAQ.txt
284 Static zlib linking now works on Windows and the new --with-zlib-include
285 --with-zlib-lib options to Configure can be used to supply the location
286 of the headers and library. Gracefully handle case where zlib library
290 *) Several fixes and enhancements to the OID generation code. The old code
291 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
292 handle numbers larger than ULONG_MAX, truncated printing and had a
293 non standard OBJ_obj2txt() behaviour.
296 *) Add support for building of engines under engine/ as shared libraries
297 under VC++ build system.
300 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
301 Hopefully, we will not see any false combination of paths any more.
304 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
306 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
307 (part of SSL_OP_ALL). This option used to disable the
308 countermeasure against man-in-the-middle protocol-version
309 rollback in the SSL 2.0 server implementation, which is a bad
310 idea. (CVE-2005-2969)
312 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
313 for Information Security, National Institute of Advanced Industrial
314 Science and Technology [AIST], Japan)]
316 *) Add two function to clear and return the verify parameter flags.
319 *) Keep cipherlists sorted in the source instead of sorting them at
320 runtime, thus removing the need for a lock.
323 *) Avoid some small subgroup attacks in Diffie-Hellman.
324 [Nick Mathewson and Ben Laurie]
326 *) Add functions for well-known primes.
329 *) Extended Windows CE support.
330 [Satoshi Nakamura and Andy Polyakov]
332 *) Initialize SSL_METHOD structures at compile time instead of during
333 runtime, thus removing the need for a lock.
336 *) Make PKCS7_decrypt() work even if no certificate is supplied by
337 attempting to decrypt each encrypted key in turn. Add support to
341 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
343 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
346 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
347 key into the same file any more.
350 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
353 *) Add -utf8 command line and config file option to 'ca'.
354 [Stefan <stf@udoma.org]
356 *) Removed the macro des_crypt(), as it seems to conflict with some
357 libraries. Use DES_crypt().
360 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
361 involves renaming the source and generated shared-libs for
362 both. The engines will accept the corrected or legacy ids
363 ('ncipher' and '4758_cca' respectively) when binding. NB,
364 this only applies when building 'shared'.
365 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
367 *) Add attribute functions to EVP_PKEY structure. Modify
368 PKCS12_create() to recognize a CSP name attribute and
369 use it. Make -CSP option work again in pkcs12 utility.
372 *) Add new functionality to the bn blinding code:
373 - automatic re-creation of the BN_BLINDING parameters after
374 a fixed number of uses (currently 32)
375 - add new function for parameter creation
376 - introduce flags to control the update behaviour of the
377 BN_BLINDING parameters
378 - hide BN_BLINDING structure
379 Add a second BN_BLINDING slot to the RSA structure to improve
380 performance when a single RSA object is shared among several
384 *) Add support for DTLS.
385 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
387 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
388 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
391 *) Remove buggy and incompletet DH cert support from
392 ssl/ssl_rsa.c and ssl/s3_both.c
395 *) Use SHA-1 instead of MD5 as the default digest algorithm for
396 the apps/openssl applications.
399 *) Compile clean with "-Wall -Wmissing-prototypes
400 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
401 DEBUG_SAFESTACK must also be set.
404 *) Change ./Configure so that certain algorithms can be disabled by default.
405 The new counterpiece to "no-xxx" is "enable-xxx".
407 The patented RC5 and MDC2 algorithms will now be disabled unless
408 "enable-rc5" and "enable-mdc2", respectively, are specified.
410 (IDEA remains enabled despite being patented. This is because IDEA
411 is frequently required for interoperability, and there is no license
412 fee for non-commercial use. As before, "no-idea" can be used to
413 avoid this algorithm.)
417 *) Add processing of proxy certificates (see RFC 3820). This work was
418 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
419 EGEE (Enabling Grids for E-science in Europe).
422 *) RC4 performance overhaul on modern architectures/implementations, such
423 as Intel P4, IA-64 and AMD64.
426 *) New utility extract-section.pl. This can be used specify an alternative
427 section number in a pod file instead of having to treat each file as
428 a separate case in Makefile. This can be done by adding two lines to the
431 =for comment openssl_section:XXX
433 The blank line is mandatory.
437 *) New arguments -certform, -keyform and -pass for s_client and s_server
438 to allow alternative format key and certificate files and passphrase
442 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
443 update associated structures and add various utility functions.
445 Add new policy related verify parameters, include policy checking in
446 standard verify code. Enhance 'smime' application with extra parameters
447 to support policy checking and print out.
450 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
451 Nehemiah processors. These extensions support AES encryption in hardware
452 as well as RNG (though RNG support is currently disabled).
453 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
455 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
458 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
459 [Andy Polyakov and a number of other people]
461 *) Improved PowerPC platform support. Most notably BIGNUM assembler
462 implementation contributed by IBM.
463 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
465 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
466 exponent rather than 'unsigned long'. There is a corresponding change to
467 the new 'rsa_keygen' element of the RSA_METHOD structure.
468 [Jelte Jansen, Geoff Thorpe]
470 *) Functionality for creating the initial serial number file is now
471 moved from CA.pl to the 'ca' utility with a new option -create_serial.
473 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
474 number file to 1, which is bound to cause problems. To avoid
475 the problems while respecting compatibility between different 0.9.7
476 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
477 CA.pl for serial number initialization. With the new release 0.9.8,
478 we can fix the problem directly in the 'ca' utility.)
481 *) Reduced header interdepencies by declaring more opaque objects in
482 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
483 give fewer recursive includes, which could break lazy source code - so
484 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
485 developers should define this symbol when building and using openssl to
486 ensure they track the recommended behaviour, interfaces, [etc], but
487 backwards-compatible behaviour prevails when this isn't defined.
490 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
493 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
494 This will generate a random key of the appropriate length based on the
495 cipher context. The EVP_CIPHER can provide its own random key generation
496 routine to support keys of a specific form. This is used in the des and
497 3des routines to generate a key of the correct parity. Update S/MIME
498 code to use new functions and hence generate correct parity DES keys.
499 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
500 valid (weak or incorrect parity).
503 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
504 as looking them up. This is useful when the verified structure may contain
505 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
506 present unless the new PKCS7_NO_CRL flag is asserted.
509 *) Extend ASN1 oid configuration module. It now additionally accepts the
512 shortName = some long name, 1.2.3.4
515 *) Reimplemented the BN_CTX implementation. There is now no more static
516 limitation on the number of variables it can handle nor the depth of the
517 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
518 information can now expand as required, and rather than having a single
519 static array of bignums, BN_CTX now uses a linked-list of such arrays
520 allowing it to expand on demand whilst maintaining the usefulness of
524 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
525 to allow all RSA operations to function using a single BN_CTX.
528 *) Preliminary support for certificate policy evaluation and checking. This
529 is initially intended to pass the tests outlined in "Conformance Testing
530 of Relying Party Client Certificate Path Processing Logic" v1.07.
533 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
534 remained unused and not that useful. A variety of other little bignum
535 tweaks and fixes have also been made continuing on from the audit (see
539 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
540 associated ASN1, EVP and SSL functions and old ASN1 macros.
543 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
544 and this should never fail. So the return value from the use of
545 BN_set_word() (which can fail due to needless expansion) is now deprecated;
546 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
549 *) BN_CTX_get() should return zero-valued bignums, providing the same
550 initialised value as BN_new().
551 [Geoff Thorpe, suggested by Ulf Möller]
553 *) Support for inhibitAnyPolicy certificate extension.
556 *) An audit of the BIGNUM code is underway, for which debugging code is
557 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
558 is considered valid when processing BIGNUMs, and causes execution to
559 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
560 further steps are taken to deliberately pollute unused data in BIGNUM
561 structures to try and expose faulty code further on. For now, openssl will
562 (in its default mode of operation) continue to tolerate the inconsistent
563 forms that it has tolerated in the past, but authors and packagers should
564 consider trying openssl and their own applications when compiled with
565 these debugging symbols defined. It will help highlight potential bugs in
566 their own code, and will improve the test coverage for OpenSSL itself. At
567 some point, these tighter rules will become openssl's default to improve
568 maintainability, though the assert()s and other overheads will remain only
569 in debugging configurations. See bn.h for more details.
570 [Geoff Thorpe, Nils Larsch, Ulf Möller]
572 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
573 that can only be obtained through BN_CTX_new() (which implicitly
574 initialises it). The presence of this function only made it possible
575 to overwrite an existing structure (and cause memory leaks).
578 *) Because of the callback-based approach for implementing LHASH as a
579 template type, lh_insert() adds opaque objects to hash-tables and
580 lh_doall() or lh_doall_arg() are typically used with a destructor callback
581 to clean up those corresponding objects before destroying the hash table
582 (and losing the object pointers). So some over-zealous constifications in
583 LHASH have been relaxed so that lh_insert() does not take (nor store) the
584 objects as "const" and the lh_doall[_arg] callback wrappers are not
585 prototyped to have "const" restrictions on the object pointers they are
586 given (and so aren't required to cast them away any more).
589 *) The tmdiff.h API was so ugly and minimal that our own timing utility
590 (speed) prefers to use its own implementation. The two implementations
591 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
592 its object type properly exposed (MS_TM) instead of casting to/from "char
593 *". This may still change yet if someone realises MS_TM and "ms_time_***"
594 aren't necessarily the greatest nomenclatures - but this is what was used
595 internally to the implementation so I've used that for now.
598 *) Ensure that deprecated functions do not get compiled when
599 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
600 the self-tests were still using deprecated key-generation functions so
601 these have been updated also.
604 *) Reorganise PKCS#7 code to separate the digest location functionality
605 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
606 New function PKCS7_set_digest() to set the digest type for PKCS#7
607 digestedData type. Add additional code to correctly generate the
608 digestedData type and add support for this type in PKCS7 initialization
612 *) New function PKCS7_set0_type_other() this initializes a PKCS7
613 structure of type "other".
616 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
617 sure the loop does correctly stop and breaking ("division by zero")
618 modulus operations are not performed. The (pre-generated) prime
619 table crypto/bn/bn_prime.h was already correct, but it could not be
620 re-generated on some platforms because of the "division by zero"
621 situation in the script.
622 [Ralf S. Engelschall]
624 *) Update support for ECC-based TLS ciphersuites according to
625 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
626 SHA-1 now is only used for "small" curves (where the
627 representation of a field element takes up to 24 bytes); for
628 larger curves, the field element resulting from ECDH is directly
629 used as premaster secret.
630 [Douglas Stebila (Sun Microsystems Laboratories)]
632 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
633 curve secp160r1 to the tests.
634 [Douglas Stebila (Sun Microsystems Laboratories)]
636 *) Add the possibility to load symbols globally with DSO.
637 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
639 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
640 control of the error stack.
643 *) Add support for STORE in ENGINE.
646 *) Add the STORE type. The intention is to provide a common interface
647 to certificate and key stores, be they simple file-based stores, or
648 HSM-type store, or LDAP stores, or...
649 NOTE: The code is currently UNTESTED and isn't really used anywhere.
652 *) Add a generic structure called OPENSSL_ITEM. This can be used to
653 pass a list of arguments to any function as well as provide a way
654 for a function to pass data back to the caller.
657 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
658 works like BUF_strdup() but can be used to duplicate a portion of
659 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
663 *) Add the function sk_find_ex() which works like sk_find(), but will
664 return an index to an element even if an exact match couldn't be
665 found. The index is guaranteed to point at the element where the
666 searched-for key would be inserted to preserve sorting order.
669 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
670 takes an extra flags argument for optional functionality. Currently,
671 the following flags are defined:
673 OBJ_BSEARCH_VALUE_ON_NOMATCH
674 This one gets OBJ_bsearch_ex() to return a pointer to the first
675 element where the comparing function returns a negative or zero
678 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
679 This one gets OBJ_bsearch_ex() to return a pointer to the first
680 element where the comparing function returns zero. This is useful
681 if there are more than one element where the comparing function
685 *) Make it possible to create self-signed certificates with 'openssl ca'
686 in such a way that the self-signed certificate becomes part of the
687 CA database and uses the same mechanisms for serial number generation
688 as all other certificate signing. The new flag '-selfsign' enables
689 this functionality. Adapt CA.sh and CA.pl.in.
692 *) Add functionality to check the public key of a certificate request
693 against a given private. This is useful to check that a certificate
694 request can be signed by that key (self-signing).
697 *) Make it possible to have multiple active certificates with the same
698 subject in the CA index file. This is done only if the keyword
699 'unique_subject' is set to 'no' in the main CA section (default
700 if 'CA_default') of the configuration file. The value is saved
701 with the database itself in a separate index attribute file,
702 named like the index file with '.attr' appended to the name.
705 *) Generate muti valued AVAs using '+' notation in config files for
709 *) Support for nameConstraints certificate extension.
712 *) Support for policyConstraints certificate extension.
715 *) Support for policyMappings certificate extension.
718 *) Make sure the default DSA_METHOD implementation only uses its
719 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
720 and change its own handlers to be NULL so as to remove unnecessary
721 indirection. This lets alternative implementations fallback to the
722 default implementation more easily.
725 *) Support for directoryName in GeneralName related extensions
729 *) Make it possible to link applications using Makefile.shared.
730 Make that possible even when linking against static libraries!
733 *) Support for single pass processing for S/MIME signing. This now
734 means that S/MIME signing can be done from a pipe, in addition
735 cleartext signing (multipart/signed type) is effectively streaming
736 and the signed data does not need to be all held in memory.
738 This is done with a new flag PKCS7_STREAM. When this flag is set
739 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
740 is done after the data is output (and digests calculated) in
744 *) Add full support for -rpath/-R, both in shared libraries and
745 applications, at least on the platforms where it's known how
749 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
750 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
751 will now compute a table of multiples of the generator that
752 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
753 faster (notably in the case of a single point multiplication,
755 [Nils Larsch, Bodo Moeller]
757 *) IPv6 support for certificate extensions. The various extensions
758 which use the IP:a.b.c.d can now take IPv6 addresses using the
759 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
763 *) Added an ENGINE that implements RSA by performing private key
764 exponentiations with the GMP library. The conversions to and from
765 GMP's mpz_t format aren't optimised nor are any montgomery forms
766 cached, and on x86 it appears OpenSSL's own performance has caught up.
767 However there are likely to be other architectures where GMP could
768 provide a boost. This ENGINE is not built in by default, but it can be
769 specified at Configure time and should be accompanied by the necessary
770 linker additions, eg;
771 ./config -DOPENSSL_USE_GMP -lgmp
774 *) "openssl engine" will not display ENGINE/DSO load failure errors when
775 testing availability of engines with "-t" - the old behaviour is
776 produced by increasing the feature's verbosity with "-tt".
779 *) ECDSA routines: under certain error conditions uninitialized BN objects
780 could be freed. Solution: make sure initialization is performed early
781 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
785 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
786 and DH_METHOD (eg. by ENGINE implementations) to override the normal
787 software implementations. For DSA and DH, parameter generation can
788 also be overriden by providing the appropriate method callbacks.
791 *) Change the "progress" mechanism used in key-generation and
792 primality testing to functions that take a new BN_GENCB pointer in
793 place of callback/argument pairs. The new API functions have "_ex"
794 postfixes and the older functions are reimplemented as wrappers for
795 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
796 declarations of the old functions to help (graceful) attempts to
797 migrate to the new functions. Also, the new key-generation API
798 functions operate on a caller-supplied key-structure and return
799 success/failure rather than returning a key or NULL - this is to
800 help make "keygen" another member function of RSA_METHOD etc.
802 Example for using the new callback interface:
804 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
808 BN_GENCB_set(&my_cb, my_callback, my_arg);
810 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
811 /* For the meaning of a, b in calls to my_callback(), see the
812 * documentation of the function that calls the callback.
813 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
814 * my_callback should return 1 if it wants BN_is_prime_ex()
815 * to continue, or 0 to stop.
820 *) Change the ZLIB compression method to be stateful, and make it
821 available to TLS with the number defined in
822 draft-ietf-tls-compression-04.txt.
825 *) Add the ASN.1 structures and functions for CertificatePair, which
826 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
828 CertificatePair ::= SEQUENCE {
829 forward [0] Certificate OPTIONAL,
830 reverse [1] Certificate OPTIONAL,
831 -- at least one of the pair shall be present -- }
833 Also implement the PEM functions to read and write certificate
834 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
836 This needed to be defined, mostly for the sake of the LDAP
837 attribute crossCertificatePair, but may prove useful elsewhere as
841 *) Make it possible to inhibit symlinking of shared libraries in
842 Makefile.shared, for Cygwin's sake.
845 *) Extend the BIGNUM API by creating a function
846 void BN_set_negative(BIGNUM *a, int neg);
847 and a macro that behave like
848 int BN_is_negative(const BIGNUM *a);
850 to avoid the need to access 'a->neg' directly in applications.
853 *) Implement fast modular reduction for pseudo-Mersenne primes
854 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
855 EC_GROUP_new_curve_GFp() will now automatically use this
857 [Nils Larsch <nla@trustcenter.de>]
859 *) Add new lock type (CRYPTO_LOCK_BN).
862 *) Change the ENGINE framework to automatically load engines
863 dynamically from specific directories unless they could be
864 found to already be built in or loaded. Move all the
865 current engines except for the cryptodev one to a new
867 The engines in engines/ are built as shared libraries if
868 the "shared" options was given to ./Configure or ./config.
869 Otherwise, they are inserted in libcrypto.a.
870 /usr/local/ssl/engines is the default directory for dynamic
871 engines, but that can be overriden at configure time through
872 the usual use of --prefix and/or --openssldir, and at run
873 time with the environment variable OPENSSL_ENGINES.
874 [Geoff Thorpe and Richard Levitte]
876 *) Add Makefile.shared, a helper makefile to build shared
877 libraries. Addapt Makefile.org.
880 *) Add version info to Win32 DLLs.
881 [Peter 'Luna' Runestig" <peter@runestig.com>]
883 *) Add new 'medium level' PKCS#12 API. Certificates and keys
884 can be added using this API to created arbitrary PKCS#12
885 files while avoiding the low level API.
887 New options to PKCS12_create(), key or cert can be NULL and
888 will then be omitted from the output file. The encryption
889 algorithm NIDs can be set to -1 for no encryption, the mac
890 iteration count can be set to 0 to omit the mac.
892 Enhance pkcs12 utility by making the -nokeys and -nocerts
893 options work when creating a PKCS#12 file. New option -nomac
894 to omit the mac, NONE can be set for an encryption algorithm.
895 New code is modified to use the enhanced PKCS12_create()
896 instead of the low level API.
899 *) Extend ASN1 encoder to support indefinite length constructed
900 encoding. This can output sequences tags and octet strings in
901 this form. Modify pk7_asn1.c to support indefinite length
902 encoding. This is experimental and needs additional code to
903 be useful, such as an ASN1 bio and some enhanced streaming
906 Extend template encode functionality so that tagging is passed
907 down to the template encoder.
910 *) Let 'openssl req' fail if an argument to '-newkey' is not
911 recognized instead of using RSA as a default.
914 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
915 As these are not official, they are not included in "ALL";
916 the "ECCdraft" ciphersuite group alias can be used to select them.
917 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
919 *) Add ECDH engine support.
920 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
922 *) Add ECDH in new directory crypto/ecdh/.
923 [Douglas Stebila (Sun Microsystems Laboratories)]
925 *) Let BN_rand_range() abort with an error after 100 iterations
926 without success (which indicates a broken PRNG).
929 *) Change BN_mod_sqrt() so that it verifies that the input value
930 is really the square of the return value. (Previously,
931 BN_mod_sqrt would show GIGO behaviour.)
934 *) Add named elliptic curves over binary fields from X9.62, SECG,
935 and WAP/WTLS; add OIDs that were still missing.
937 [Sheueling Chang Shantz and Douglas Stebila
938 (Sun Microsystems Laboratories)]
940 *) Extend the EC library for elliptic curves over binary fields
941 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
944 EC_GF2m_simple_method
948 EC_GROUP_new_curve_GF2m
949 EC_GROUP_set_curve_GF2m
950 EC_GROUP_get_curve_GF2m
951 EC_POINT_set_affine_coordinates_GF2m
952 EC_POINT_get_affine_coordinates_GF2m
953 EC_POINT_set_compressed_coordinates_GF2m
955 Point compression for binary fields is disabled by default for
956 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
959 As binary polynomials are represented as BIGNUMs, various members
960 of the EC_GROUP and EC_POINT data structures can be shared
961 between the implementations for prime fields and binary fields;
962 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
963 are essentially identical to their ..._GFp counterparts.
964 (For simplicity, the '..._GFp' prefix has been dropped from
965 various internal method names.)
967 An internal 'field_div' method (similar to 'field_mul' and
968 'field_sqr') has been added; this is used only for binary fields.
970 [Sheueling Chang Shantz and Douglas Stebila
971 (Sun Microsystems Laboratories)]
973 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
974 through methods ('mul', 'precompute_mult').
976 The generic implementations (now internally called 'ec_wNAF_mul'
977 and 'ec_wNAF_precomputed_mult') remain the default if these
978 methods are undefined.
980 [Sheueling Chang Shantz and Douglas Stebila
981 (Sun Microsystems Laboratories)]
983 *) New function EC_GROUP_get_degree, which is defined through
984 EC_METHOD. For curves over prime fields, this returns the bit
985 length of the modulus.
987 [Sheueling Chang Shantz and Douglas Stebila
988 (Sun Microsystems Laboratories)]
990 *) New functions EC_GROUP_dup, EC_POINT_dup.
991 (These simply call ..._new and ..._copy).
993 [Sheueling Chang Shantz and Douglas Stebila
994 (Sun Microsystems Laboratories)]
996 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
997 Polynomials are represented as BIGNUMs (where the sign bit is not
998 used) in the following functions [macros]:
1001 BN_GF2m_sub [= BN_GF2m_add]
1002 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1003 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1004 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1006 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1007 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1008 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1009 BN_GF2m_cmp [= BN_ucmp]
1011 (Note that only the 'mod' functions are actually for fields GF(2^m).
1012 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1014 For some functions, an the irreducible polynomial defining a
1015 field can be given as an 'unsigned int[]' with strictly
1016 decreasing elements giving the indices of those bits that are set;
1017 i.e., p[] represents the polynomial
1018 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1020 p[0] > p[1] > ... > p[k] = 0.
1021 This applies to the following functions:
1026 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1027 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1029 BN_GF2m_mod_sqrt_arr
1030 BN_GF2m_mod_solve_quad_arr
1034 Conversion can be performed by the following functions:
1039 bntest.c has additional tests for binary polynomial arithmetic.
1041 Two implementations for BN_GF2m_mod_div() are available.
1042 The default algorithm simply uses BN_GF2m_mod_inv() and
1043 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1044 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1045 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1047 [Sheueling Chang Shantz and Douglas Stebila
1048 (Sun Microsystems Laboratories)]
1050 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1051 functionality is disabled at compile-time.
1052 [Douglas Stebila <douglas.stebila@sun.com>]
1054 *) Change default behaviour of 'openssl asn1parse' so that more
1055 information is visible when viewing, e.g., a certificate:
1057 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1058 mode the content of non-printable OCTET STRINGs is output in a
1059 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1060 avoid the appearance of a printable string.
1061 [Nils Larsch <nla@trustcenter.de>]
1063 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1065 EC_GROUP_set_asn1_flag()
1066 EC_GROUP_get_asn1_flag()
1067 EC_GROUP_set_point_conversion_form()
1068 EC_GROUP_get_point_conversion_form()
1069 These control ASN1 encoding details:
1070 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1071 has been set to OPENSSL_EC_NAMED_CURVE.
1072 - Points are encoded in uncompressed form by default; options for
1073 asn1_for are as for point2oct, namely
1074 POINT_CONVERSION_COMPRESSED
1075 POINT_CONVERSION_UNCOMPRESSED
1076 POINT_CONVERSION_HYBRID
1078 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1081 EC_GROUP_get0_seed()
1082 EC_GROUP_get_seed_len()
1083 This is used only for ASN1 purposes (so far).
1084 [Nils Larsch <nla@trustcenter.de>]
1086 *) Add 'field_type' member to EC_METHOD, which holds the NID
1087 of the appropriate field type OID. The new function
1088 EC_METHOD_get_field_type() returns this value.
1089 [Nils Larsch <nla@trustcenter.de>]
1094 EC_POINT_point2hex()
1095 EC_POINT_hex2point()
1096 providing useful interfaces to EC_POINT_point2oct() and
1097 EC_POINT_oct2point().
1098 [Nils Larsch <nla@trustcenter.de>]
1100 *) Change internals of the EC library so that the functions
1101 EC_GROUP_set_generator()
1102 EC_GROUP_get_generator()
1103 EC_GROUP_get_order()
1104 EC_GROUP_get_cofactor()
1105 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1106 to methods, which would lead to unnecessary code duplication when
1107 adding different types of curves.
1108 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1110 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1111 arithmetic, and such that modified wNAFs are generated
1112 (which avoid length expansion in many cases).
1115 *) Add a function EC_GROUP_check_discriminant() (defined via
1116 EC_METHOD) that verifies that the curve discriminant is non-zero.
1118 Add a function EC_GROUP_check() that makes some sanity tests
1119 on a EC_GROUP, its generator and order. This includes
1120 EC_GROUP_check_discriminant().
1121 [Nils Larsch <nla@trustcenter.de>]
1123 *) Add ECDSA in new directory crypto/ecdsa/.
1125 Add applications 'openssl ecparam' and 'openssl ecdsa'
1126 (these are based on 'openssl dsaparam' and 'openssl dsa').
1128 ECDSA support is also included in various other files across the
1129 library. Most notably,
1130 - 'openssl req' now has a '-newkey ecdsa:file' option;
1131 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1132 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1133 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1134 them suitable for ECDSA where domain parameters must be
1135 extracted before the specific public key;
1136 - ECDSA engine support has been added.
1137 [Nils Larsch <nla@trustcenter.de>]
1139 *) Include some named elliptic curves, and add OIDs from X9.62,
1140 SECG, and WAP/WTLS. Each curve can be obtained from the new
1142 EC_GROUP_new_by_curve_name(),
1143 and the list of available named curves can be obtained with
1144 EC_get_builtin_curves().
1145 Also add a 'curve_name' member to EC_GROUP objects, which can be
1147 EC_GROUP_set_curve_name()
1148 EC_GROUP_get_curve_name()
1149 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1151 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1152 was actually never needed) and in BN_mul(). The removal in BN_mul()
1153 required a small change in bn_mul_part_recursive() and the addition
1154 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1155 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1156 bn_sub_words() and bn_add_words() except they take arrays with
1160 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1162 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1163 The value now differs depending on if you build for FIPS or not.
1164 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1165 safely run with a non-FIPSed libcrypto, as it may crash because of
1166 the difference induced by this change.
1169 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1171 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1172 (part of SSL_OP_ALL). This option used to disable the
1173 countermeasure against man-in-the-middle protocol-version
1174 rollback in the SSL 2.0 server implementation, which is a bad
1175 idea. (CVE-2005-2969)
1177 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1178 for Information Security, National Institute of Advanced Industrial
1179 Science and Technology [AIST], Japan)]
1181 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1182 mainly for FIPS compliance and not fully integrated at this stage.
1185 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1186 the exponentiation using a fixed-length exponent. (Otherwise,
1187 the information leaked through timing could expose the secret key
1188 after many signatures; cf. Bleichenbacher's attack on DSA with
1192 *) Make a new fixed-window mod_exp implementation the default for
1193 RSA, DSA, and DH private-key operations so that the sequence of
1194 squares and multiplies and the memory access pattern are
1195 independent of the particular secret key. This will mitigate
1196 cache-timing and potential related attacks.
1198 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1199 and this is automatically used by BN_mod_exp_mont() if the new flag
1200 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1201 will use this BN flag for private exponents unless the flag
1202 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1203 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1205 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1207 *) Change the client implementation for SSLv23_method() and
1208 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1209 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1210 (Previously, the SSL 2.0 backwards compatible Client Hello
1211 message format would be used even with SSL_OP_NO_SSLv2.)
1214 *) Add support for smime-type MIME parameter in S/MIME messages which some
1218 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1219 a threadsafe manner. Modify rsa code to use new function and add calls
1220 to dsa and dh code (which had race conditions before).
1223 *) Include the fixed error library code in the C error file definitions
1224 instead of fixing them up at runtime. This keeps the error code
1225 structures constant.
1228 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1230 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1233 *) Fixes for newer kerberos headers. NB: the casts are needed because
1234 the 'length' field is signed on one version and unsigned on another
1235 with no (?) obvious way to tell the difference, without these VC++
1236 complains. Also the "definition" of FAR (blank) is no longer included
1237 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1238 some needed definitions.
1241 *) Undo Cygwin change.
1244 *) Added support for proxy certificates according to RFC 3820.
1245 Because they may be a security thread to unaware applications,
1246 they must be explicitely allowed in run-time. See
1247 docs/HOWTO/proxy_certificates.txt for further information.
1250 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1252 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1253 server and client random values. Previously
1254 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1255 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1257 This change has negligible security impact because:
1259 1. Server and client random values still have 24 bytes of pseudo random
1262 2. Server and client random values are sent in the clear in the initial
1265 3. The master secret is derived using the premaster secret (48 bytes in
1266 size for static RSA ciphersuites) as well as client server and random
1269 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1272 [Stephen Henson, reported by UK NISCC]
1274 *) Use Windows randomness collection on Cygwin.
1277 *) Fix hang in EGD/PRNGD query when communication socket is closed
1278 prematurely by EGD/PRNGD.
1279 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1281 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1284 *) Back-port of selected performance improvements from development
1285 branch, as well as improved support for PowerPC platforms.
1288 *) Add lots of checks for memory allocation failure, error codes to indicate
1289 failure and freeing up memory if a failure occurs.
1290 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1292 *) Add new -passin argument to dgst.
1295 *) Perform some character comparisons of different types in X509_NAME_cmp:
1296 this is needed for some certificates that reencode DNs into UTF8Strings
1297 (in violation of RFC3280) and can't or wont issue name rollover
1301 *) Make an explicit check during certificate validation to see that
1302 the CA setting in each certificate on the chain is correct. As a
1303 side effect always do the following basic checks on extensions,
1304 not just when there's an associated purpose to the check:
1306 - if there is an unhandled critical extension (unless the user
1307 has chosen to ignore this fault)
1308 - if the path length has been exceeded (if one is set at all)
1309 - that certain extensions fit the associated purpose (if one has
1313 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1315 *) Avoid a race condition when CRLs are checked in a multi threaded
1316 environment. This would happen due to the reordering of the revoked
1317 entries during signature checking and serial number lookup. Now the
1318 encoding is cached and the serial number sort performed under a lock.
1319 Add new STACK function sk_is_sorted().
1322 *) Add Delta CRL to the extension code.
1325 *) Various fixes to s3_pkt.c so alerts are sent properly.
1326 [David Holmes <d.holmes@f5.com>]
1328 *) Reduce the chances of duplicate issuer name and serial numbers (in
1329 violation of RFC3280) using the OpenSSL certificate creation utilities.
1330 This is done by creating a random 64 bit value for the initial serial
1331 number when a serial number file is created or when a self signed
1332 certificate is created using 'openssl req -x509'. The initial serial
1333 number file is created using 'openssl x509 -next_serial' in CA.pl
1334 rather than being initialized to 1.
1337 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1339 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1340 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1341 [Joe Orton, Steve Henson]
1343 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1345 [Joe Orton, Steve Henson]
1347 *) Make it possible to have multiple active certificates with the same
1348 subject in the CA index file. This is done only if the keyword
1349 'unique_subject' is set to 'no' in the main CA section (default
1350 if 'CA_default') of the configuration file. The value is saved
1351 with the database itself in a separate index attribute file,
1352 named like the index file with '.attr' appended to the name.
1355 *) X509 verify fixes. Disable broken certificate workarounds when
1356 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1357 keyUsage extension present. Don't accept CRLs with unhandled critical
1358 extensions: since verify currently doesn't process CRL extensions this
1359 rejects a CRL with *any* critical extensions. Add new verify error codes
1363 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1364 A clarification of RFC2560 will require the use of OCTET STRINGs and
1365 some implementations cannot handle the current raw format. Since OpenSSL
1366 copies and compares OCSP nonces as opaque blobs without any attempt at
1367 parsing them this should not create any compatibility issues.
1370 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1371 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1372 this HMAC (and other) operations are several times slower than OpenSSL
1376 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1377 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1379 *) Use the correct content when signing type "other".
1382 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1384 *) Fix various bugs revealed by running the NISCC test suite:
1386 Stop out of bounds reads in the ASN1 code when presented with
1387 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1389 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1391 If verify callback ignores invalid public key errors don't try to check
1392 certificate signature with the NULL public key.
1396 *) New -ignore_err option in ocsp application to stop the server
1397 exiting on the first error in a request.
1400 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1401 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1405 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1406 extra data after the compression methods not only for TLS 1.0
1407 but also for SSL 3.0 (as required by the specification).
1408 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1410 *) Change X509_certificate_type() to mark the key as exported/exportable
1411 when it's 512 *bits* long, not 512 bytes.
1414 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1415 blocks during encryption.
1418 *) Various fixes to base64 BIO and non blocking I/O. On write
1419 flushes were not handled properly if the BIO retried. On read
1420 data was not being buffered properly and had various logic bugs.
1421 This also affects blocking I/O when the data being decoded is a
1425 *) Various S/MIME bugfixes and compatibility changes:
1426 output correct application/pkcs7 MIME type if
1427 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1428 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1429 of files as .eml work). Correctly handle very long lines in MIME
1433 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1435 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1436 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1437 a protocol version number mismatch like a decryption error
1438 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1441 *) Turn on RSA blinding by default in the default implementation
1442 to avoid a timing attack. Applications that don't want it can call
1443 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1444 They would be ill-advised to do so in most cases.
1445 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1447 *) Change RSA blinding code so that it works when the PRNG is not
1448 seeded (in this case, the secret RSA exponent is abused as
1449 an unpredictable seed -- if it is not unpredictable, there
1450 is no point in blinding anyway). Make RSA blinding thread-safe
1451 by remembering the creator's thread ID in rsa->blinding and
1452 having all other threads use local one-time blinding factors
1453 (this requires more computation than sharing rsa->blinding, but
1454 avoids excessive locking; and if an RSA object is not shared
1455 between threads, blinding will still be very fast).
1458 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1459 ENGINE as defaults for all supported algorithms irrespective of
1460 the 'flags' parameter. 'flags' is now honoured, so applications
1461 should make sure they are passing it correctly.
1464 *) Target "mingw" now allows native Windows code to be generated in
1465 the Cygwin environment as well as with the MinGW compiler.
1468 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1470 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1471 via timing by performing a MAC computation even if incorrrect
1472 block cipher padding has been found. This is a countermeasure
1473 against active attacks where the attacker has to distinguish
1474 between bad padding and a MAC verification error. (CVE-2003-0078)
1476 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1477 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1478 Martin Vuagnoux (EPFL, Ilion)]
1480 *) Make the no-err option work as intended. The intention with no-err
1481 is not to have the whole error stack handling routines removed from
1482 libcrypto, it's only intended to remove all the function name and
1483 reason texts, thereby removing some of the footprint that may not
1484 be interesting if those errors aren't displayed anyway.
1486 NOTE: it's still possible for any application or module to have it's
1487 own set of error texts inserted. The routines are there, just not
1488 used by default when no-err is given.
1491 *) Add support for FreeBSD on IA64.
1492 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1494 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1495 Kerberos function mit_des_cbc_cksum(). Before this change,
1496 the value returned by DES_cbc_cksum() was like the one from
1497 mit_des_cbc_cksum(), except the bytes were swapped.
1498 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1500 *) Allow an application to disable the automatic SSL chain building.
1501 Before this a rather primitive chain build was always performed in
1502 ssl3_output_cert_chain(): an application had no way to send the
1503 correct chain if the automatic operation produced an incorrect result.
1505 Now the chain builder is disabled if either:
1507 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1509 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1511 The reasoning behind this is that an application would not want the
1512 auto chain building to take place if extra chain certificates are
1513 present and it might also want a means of sending no additional
1514 certificates (for example the chain has two certificates and the
1518 *) Add the possibility to build without the ENGINE framework.
1519 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1521 *) Under Win32 gmtime() can return NULL: check return value in
1522 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1525 *) DSA routines: under certain error conditions uninitialized BN objects
1526 could be freed. Solution: make sure initialization is performed early
1527 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1528 Nils Larsch <nla@trustcenter.de> via PR#459)
1531 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1532 checked on reconnect on the client side, therefore session resumption
1533 could still fail with a "ssl session id is different" error. This
1534 behaviour is masked when SSL_OP_ALL is used due to
1535 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1536 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1537 followup to PR #377.
1540 *) IA-32 assembler support enhancements: unified ELF targets, support
1541 for SCO/Caldera platforms, fix for Cygwin shared build.
1544 *) Add support for FreeBSD on sparc64. As a consequence, support for
1545 FreeBSD on non-x86 processors is separate from x86 processors on
1546 the config script, much like the NetBSD support.
1547 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1549 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1551 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1554 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1555 code (06) was taken as the first octet of the session ID and the last
1556 octet was ignored consequently. As a result SSLv2 client side session
1557 caching could not have worked due to the session ID mismatch between
1559 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1563 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1564 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1568 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1569 seems that in spite of existing for more than a year, many application
1570 author have done nothing to provide the necessary callbacks, which
1571 means that this particular engine will not work properly anywhere.
1572 This is a very unfortunate situation which forces us, in the name
1573 of usability, to give the hw_ncipher.c a static lock, which is part
1575 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1576 appear in 0.9.8 or later. We EXPECT application authors to have
1577 dealt properly with this when 0.9.8 is released (unless we actually
1578 make such changes in the libcrypto locking code that changes will
1579 have to be made anyway).
1582 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1583 octets have been read, EOF or an error occurs. Without this change
1584 some truncated ASN1 structures will not produce an error.
1587 *) Disable Heimdal support, since it hasn't been fully implemented.
1588 Still give the possibility to force the use of Heimdal, but with
1589 warnings and a request that patches get sent to openssl-dev.
1592 *) Add the VC-CE target, introduce the WINCE sysname, and add
1593 INSTALL.WCE and appropriate conditionals to make it build.
1594 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1596 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1597 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1598 edit numbers of the version.
1599 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1601 *) Introduce safe string copy and catenation functions
1602 (BUF_strlcpy() and BUF_strlcat()).
1603 [Ben Laurie (CHATS) and Richard Levitte]
1605 *) Avoid using fixed-size buffers for one-line DNs.
1606 [Ben Laurie (CHATS)]
1608 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1609 resizing buffers containing secrets, and use where appropriate.
1610 [Ben Laurie (CHATS)]
1612 *) Avoid using fixed size buffers for configuration file location.
1613 [Ben Laurie (CHATS)]
1615 *) Avoid filename truncation for various CA files.
1616 [Ben Laurie (CHATS)]
1618 *) Use sizeof in preference to magic numbers.
1619 [Ben Laurie (CHATS)]
1621 *) Avoid filename truncation in cert requests.
1622 [Ben Laurie (CHATS)]
1624 *) Add assertions to check for (supposedly impossible) buffer
1626 [Ben Laurie (CHATS)]
1628 *) Don't cache truncated DNS entries in the local cache (this could
1629 potentially lead to a spoofing attack).
1630 [Ben Laurie (CHATS)]
1632 *) Fix various buffers to be large enough for hex/decimal
1633 representations in a platform independent manner.
1634 [Ben Laurie (CHATS)]
1636 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1637 resizing buffers containing secrets, and use where appropriate.
1638 [Ben Laurie (CHATS)]
1640 *) Add BIO_indent() to avoid much slightly worrying code to do
1642 [Ben Laurie (CHATS)]
1644 *) Convert sprintf()/BIO_puts() to BIO_printf().
1645 [Ben Laurie (CHATS)]
1647 *) buffer_gets() could terminate with the buffer only half
1649 [Ben Laurie (CHATS)]
1651 *) Add assertions to prevent user-supplied crypto functions from
1652 overflowing internal buffers by having large block sizes, etc.
1653 [Ben Laurie (CHATS)]
1655 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1657 [Ben Laurie (CHATS)]
1659 *) Eliminate unused copy of key in RC4.
1660 [Ben Laurie (CHATS)]
1662 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1663 [Ben Laurie (CHATS)]
1665 *) Fix off-by-one error in EGD path.
1666 [Ben Laurie (CHATS)]
1668 *) If RANDFILE path is too long, ignore instead of truncating.
1669 [Ben Laurie (CHATS)]
1671 *) Eliminate unused and incorrectly sized X.509 structure
1673 [Ben Laurie (CHATS)]
1675 *) Eliminate unused and dangerous function knumber().
1676 [Ben Laurie (CHATS)]
1678 *) Eliminate unused and dangerous structure, KSSL_ERR.
1679 [Ben Laurie (CHATS)]
1681 *) Protect against overlong session ID context length in an encoded
1682 session object. Since these are local, this does not appear to be
1684 [Ben Laurie (CHATS)]
1686 *) Change from security patch (see 0.9.6e below) that did not affect
1687 the 0.9.6 release series:
1689 Remote buffer overflow in SSL3 protocol - an attacker could
1690 supply an oversized master key in Kerberos-enabled versions.
1692 [Ben Laurie (CHATS)]
1694 *) Change the SSL kerb5 codes to match RFC 2712.
1697 *) Make -nameopt work fully for req and add -reqopt switch.
1698 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1700 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1701 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1703 *) Make sure tests can be performed even if the corresponding algorithms
1704 have been removed entirely. This was also the last step to make
1705 OpenSSL compilable with DJGPP under all reasonable conditions.
1706 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1708 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1709 to allow version independent disabling of normally unselected ciphers,
1710 which may be activated as a side-effect of selecting a single cipher.
1712 (E.g., cipher list string "RSA" enables ciphersuites that are left
1713 out of "ALL" because they do not provide symmetric encryption.
1714 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1715 [Lutz Jaenicke, Bodo Moeller]
1717 *) Add appropriate support for separate platform-dependent build
1718 directories. The recommended way to make a platform-dependent
1719 build directory is the following (tested on Linux), maybe with
1722 # Place yourself outside of the OpenSSL source tree. In
1723 # this example, the environment variable OPENSSL_SOURCE
1724 # is assumed to contain the absolute OpenSSL source directory.
1725 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1726 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1727 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1728 mkdir -p `dirname $F`
1729 ln -s $OPENSSL_SOURCE/$F $F
1732 To be absolutely sure not to disturb the source tree, a "make clean"
1733 is a good thing. If it isn't successfull, don't worry about it,
1734 it probably means the source directory is very clean.
1737 *) Make sure any ENGINE control commands make local copies of string
1738 pointers passed to them whenever necessary. Otherwise it is possible
1739 the caller may have overwritten (or deallocated) the original string
1740 data when a later ENGINE operation tries to use the stored values.
1741 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1743 *) Improve diagnostics in file reading and command-line digests.
1744 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1746 *) Add AES modes CFB and OFB to the object database. Correct an
1747 error in AES-CFB decryption.
1750 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1751 allows existing EVP_CIPHER_CTX structures to be reused after
1752 calling EVP_*Final(). This behaviour is used by encryption
1753 BIOs and some applications. This has the side effect that
1754 applications must explicitly clean up cipher contexts with
1755 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1758 *) Check the values of dna and dnb in bn_mul_recursive before calling
1759 bn_mul_comba (a non zero value means the a or b arrays do not contain
1760 n2 elements) and fallback to bn_mul_normal if either is not zero.
1763 *) Fix escaping of non-ASCII characters when using the -subj option
1764 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1767 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1768 form for "surname", serialNumber has no short form.
1769 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1770 therefore remove "mail" short name for "internet 7".
1771 The OID for unique identifiers in X509 certificates is
1772 x500UniqueIdentifier, not uniqueIdentifier.
1773 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1776 *) Add an "init" command to the ENGINE config module and auto initialize
1777 ENGINEs. Without any "init" command the ENGINE will be initialized
1778 after all ctrl commands have been executed on it. If init=1 the
1779 ENGINE is initailized at that point (ctrls before that point are run
1780 on the uninitialized ENGINE and after on the initialized one). If
1781 init=0 then the ENGINE will not be iniatialized at all.
1784 *) Fix the 'app_verify_callback' interface so that the user-defined
1785 argument is actually passed to the callback: In the
1786 SSL_CTX_set_cert_verify_callback() prototype, the callback
1787 declaration has been changed from
1790 int (*cb)(X509_STORE_CTX *,void *);
1791 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1792 i=s->ctx->app_verify_callback(&ctx)
1793 has been changed into
1794 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1796 To update applications using SSL_CTX_set_cert_verify_callback(),
1797 a dummy argument can be added to their callback functions.
1798 [D. K. Smetters <smetters@parc.xerox.com>]
1800 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1801 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1803 *) Add and OPENSSL_LOAD_CONF define which will cause
1804 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1805 This allows older applications to transparently support certain
1806 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1807 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1808 load the config file and OPENSSL_add_all_algorithms_conf() which will
1809 always load it have also been added.
1812 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1813 Adjust NIDs and EVP layer.
1814 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1816 *) Config modules support in openssl utility.
1818 Most commands now load modules from the config file,
1819 though in a few (such as version) this isn't done
1820 because it couldn't be used for anything.
1822 In the case of ca and req the config file used is
1823 the same as the utility itself: that is the -config
1824 command line option can be used to specify an
1828 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1829 use "openssl_conf" if filename is NULL use default openssl config file.
1832 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1833 config section name. Add a new flag to tolerate a missing config file
1834 and move code to CONF_modules_load_file().
1837 *) Support for crypto accelerator cards from Accelerated Encryption
1838 Processing, www.aep.ie. (Use engine 'aep')
1839 The support was copied from 0.9.6c [engine] and adapted/corrected
1840 to work with the new engine framework.
1841 [AEP Inc. and Richard Levitte]
1843 *) Support for SureWare crypto accelerator cards from Baltimore
1844 Technologies. (Use engine 'sureware')
1845 The support was copied from 0.9.6c [engine] and adapted
1846 to work with the new engine framework.
1849 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1850 make the newer ENGINE framework commands for the CHIL engine work.
1851 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1853 *) Make it possible to produce shared libraries on ReliantUNIX.
1854 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1856 *) Add the configuration target debug-linux-ppro.
1857 Make 'openssl rsa' use the general key loading routines
1858 implemented in apps.c, and make those routines able to
1859 handle the key format FORMAT_NETSCAPE and the variant
1861 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1863 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1864 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1866 *) Add -keyform to rsautl, and document -engine.
1867 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1869 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1870 BIO_R_NO_SUCH_FILE error code rather than the generic
1871 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1874 *) Add new functions
1876 ERR_peek_last_error_line
1877 ERR_peek_last_error_line_data.
1878 These are similar to
1881 ERR_peek_error_line_data,
1882 but report on the latest error recorded rather than the first one
1883 still in the error queue.
1884 [Ben Laurie, Bodo Moeller]
1886 *) default_algorithms option in ENGINE config module. This allows things
1888 default_algorithms = ALL
1889 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1892 *) Prelminary ENGINE config module.
1895 *) New experimental application configuration code.
1898 *) Change the AES code to follow the same name structure as all other
1899 symmetric ciphers, and behave the same way. Move everything to
1900 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1901 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1903 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1904 [Ben Laurie and Theo de Raadt]
1906 *) Add option to output public keys in req command.
1907 [Massimiliano Pala madwolf@openca.org]
1909 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1910 (up to about 10% better than before for P-192 and P-224).
1913 *) New functions/macros
1915 SSL_CTX_set_msg_callback(ctx, cb)
1916 SSL_CTX_set_msg_callback_arg(ctx, arg)
1917 SSL_set_msg_callback(ssl, cb)
1918 SSL_set_msg_callback_arg(ssl, arg)
1920 to request calling a callback function
1922 void cb(int write_p, int version, int content_type,
1923 const void *buf, size_t len, SSL *ssl, void *arg)
1925 whenever a protocol message has been completely received
1926 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1927 protocol version according to which the SSL library interprets
1928 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1929 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1930 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1931 specification (change_cipher_spec(20), alert(21), handshake(22)).
1932 'buf' and 'len' point to the actual message, 'ssl' to the
1933 SSL object, and 'arg' is the application-defined value set by
1934 SSL[_CTX]_set_msg_callback_arg().
1936 'openssl s_client' and 'openssl s_server' have new '-msg' options
1937 to enable a callback that displays all protocol messages.
1940 *) Change the shared library support so shared libraries are built as
1941 soon as the corresponding static library is finished, and thereby get
1942 openssl and the test programs linked against the shared library.
1943 This still only happens when the keyword "shard" has been given to
1944 the configuration scripts.
1946 NOTE: shared library support is still an experimental thing, and
1947 backward binary compatibility is still not guaranteed.
1948 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1950 *) Add support for Subject Information Access extension.
1951 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1953 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1954 additional bytes when new memory had to be allocated, not just
1955 when reusing an existing buffer.
1958 *) New command line and configuration option 'utf8' for the req command.
1959 This allows field values to be specified as UTF8 strings.
1962 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1963 runs for the former and machine-readable output for the latter.
1966 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1967 of the e-mail address in the DN (i.e., it will go into a certificate
1968 extension only). The new configuration file option 'email_in_dn = no'
1969 has the same effect.
1970 [Massimiliano Pala madwolf@openca.org]
1972 *) Change all functions with names starting with des_ to be starting
1973 with DES_ instead. Add wrappers that are compatible with libdes,
1974 but are named _ossl_old_des_*. Finally, add macros that map the
1975 des_* symbols to the corresponding _ossl_old_des_* if libdes
1976 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1977 desired, the des_* symbols will be mapped to DES_*, with one
1980 Since we provide two compatibility mappings, the user needs to
1981 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1982 compatibility is desired. The default (i.e., when that macro
1983 isn't defined) is OpenSSL 0.9.6c compatibility.
1985 There are also macros that enable and disable the support of old
1986 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1987 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1988 are defined, the default will apply: to support the old des routines.
1990 In either case, one must include openssl/des.h to get the correct
1991 definitions. Do not try to just include openssl/des_old.h, that
1994 NOTE: This is a major break of an old API into a new one. Software
1995 authors are encouraged to switch to the DES_ style functions. Some
1996 time in the future, des_old.h and the libdes compatibility functions
1997 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1998 default), and then completely removed.
2001 *) Test for certificates which contain unsupported critical extensions.
2002 If such a certificate is found during a verify operation it is
2003 rejected by default: this behaviour can be overridden by either
2004 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2005 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2006 X509_supported_extension() has also been added which returns 1 if a
2007 particular extension is supported.
2010 *) Modify the behaviour of EVP cipher functions in similar way to digests
2011 to retain compatibility with existing code.
2014 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2015 compatibility with existing code. In particular the 'ctx' parameter does
2016 not have to be to be initialized before the call to EVP_DigestInit() and
2017 it is tidied up after a call to EVP_DigestFinal(). New function
2018 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2019 EVP_MD_CTX_copy() changed to not require the destination to be
2020 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2021 requires the destination to be valid.
2023 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2024 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2027 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2028 so that complete 'Handshake' protocol structures are kept in memory
2029 instead of overwriting 'msg_type' and 'length' with 'body' data.
2032 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2033 [Massimo Santin via Richard Levitte]
2035 *) Major restructuring to the underlying ENGINE code. This includes
2036 reduction of linker bloat, separation of pure "ENGINE" manipulation
2037 (initialisation, etc) from functionality dealing with implementations
2038 of specific crypto iterfaces. This change also introduces integrated
2039 support for symmetric ciphers and digest implementations - so ENGINEs
2040 can now accelerate these by providing EVP_CIPHER and EVP_MD
2041 implementations of their own. This is detailed in crypto/engine/README
2042 as it couldn't be adequately described here. However, there are a few
2043 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2044 were changed in the original introduction of ENGINE code have now
2045 reverted back - the hooking from this code to ENGINE is now a good
2046 deal more passive and at run-time, operations deal directly with
2047 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2048 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2049 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2050 they were not being used by the framework as there is no concept of a
2051 BIGNUM_METHOD and they could not be generalised to the new
2052 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2053 ENGINE_cpy() has been removed as it cannot be consistently defined in
2057 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2060 *) Change mkdef.pl to sort symbols that get the same entry number,
2061 and make sure the automatically generated functions ERR_load_*
2062 become part of libeay.num as well.
2065 *) New function SSL_renegotiate_pending(). This returns true once
2066 renegotiation has been requested (either SSL_renegotiate() call
2067 or HelloRequest/ClientHello receveived from the peer) and becomes
2068 false once a handshake has been completed.
2069 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2070 sends a HelloRequest, but does not ensure that a handshake takes
2071 place. SSL_renegotiate_pending() is useful for checking if the
2072 client has followed the request.)
2075 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2076 By default, clients may request session resumption even during
2077 renegotiation (if session ID contexts permit); with this option,
2078 session resumption is possible only in the first handshake.
2080 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2081 more bits available for options that should not be part of
2082 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2085 *) Add some demos for certificate and certificate request creation.
2088 *) Make maximum certificate chain size accepted from the peer application
2089 settable (SSL*_get/set_max_cert_list()), as proposed by
2090 "Douglas E. Engert" <deengert@anl.gov>.
2093 *) Add support for shared libraries for Unixware-7
2094 (Boyd Lynn Gerber <gerberb@zenez.com>).
2097 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2098 be done prior to destruction. Use this to unload error strings from
2099 ENGINEs that load their own error strings. NB: This adds two new API
2100 functions to "get" and "set" this destroy handler in an ENGINE.
2103 *) Alter all existing ENGINE implementations (except "openssl" and
2104 "openbsd") to dynamically instantiate their own error strings. This
2105 makes them more flexible to be built both as statically-linked ENGINEs
2106 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2107 Also, add stub code to each that makes building them as self-contained
2108 shared-libraries easier (see README.ENGINE).
2111 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2112 implementations into applications that are completely implemented in
2113 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2114 commands that can be used to configure what shared-library to load and
2115 to control aspects of the way it is handled. Also, made an update to
2116 the README.ENGINE file that brings its information up-to-date and
2117 provides some information and instructions on the "dynamic" ENGINE
2118 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2121 *) Make it possible to unload ranges of ERR strings with a new
2122 "ERR_unload_strings" function.
2125 *) Add a copy() function to EVP_MD.
2128 *) Make EVP_MD routines take a context pointer instead of just the
2129 md_data void pointer.
2132 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2133 that the digest can only process a single chunk of data
2134 (typically because it is provided by a piece of
2135 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2136 is only going to provide a single chunk of data, and hence the
2137 framework needn't accumulate the data for oneshot drivers.
2140 *) As with "ERR", make it possible to replace the underlying "ex_data"
2141 functions. This change also alters the storage and management of global
2142 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2143 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2144 index counters. The API functions that use this state have been changed
2145 to take a "class_index" rather than pointers to the class's local STACK
2146 and counter, and there is now an API function to dynamically create new
2147 classes. This centralisation allows us to (a) plug a lot of the
2148 thread-safety problems that existed, and (b) makes it possible to clean
2149 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2150 such data would previously have always leaked in application code and
2151 workarounds were in place to make the memory debugging turn a blind eye
2152 to it. Application code that doesn't use this new function will still
2153 leak as before, but their memory debugging output will announce it now
2154 rather than letting it slide.
2156 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2157 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2158 has a return value to indicate success or failure.
2161 *) Make it possible to replace the underlying "ERR" functions such that the
2162 global state (2 LHASH tables and 2 locks) is only used by the "default"
2163 implementation. This change also adds two functions to "get" and "set"
2164 the implementation prior to it being automatically set the first time
2165 any other ERR function takes place. Ie. an application can call "get",
2166 pass the return value to a module it has just loaded, and that module
2167 can call its own "set" function using that value. This means the
2168 module's "ERR" operations will use (and modify) the error state in the
2169 application and not in its own statically linked copy of OpenSSL code.
2172 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2173 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2174 the operation, and provides a more encapsulated way for external code
2175 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2176 to use these functions rather than manually incrementing the counts.
2178 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2181 *) Add EVP test program.
2184 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2187 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2188 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2189 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2190 These allow a CRL to be built without having to access X509_CRL fields
2191 directly. Modify 'ca' application to use new functions.
2194 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2195 bug workarounds. Rollback attack detection is a security feature.
2196 The problem will only arise on OpenSSL servers when TLSv1 is not
2197 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2198 Software authors not wanting to support TLSv1 will have special reasons
2199 for their choice and can explicitly enable this option.
2200 [Bodo Moeller, Lutz Jaenicke]
2202 *) Rationalise EVP so it can be extended: don't include a union of
2203 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2204 (similar to those existing for EVP_CIPHER_CTX).
2209 EVP_MD_CTX_init(&md); /* new function call */
2210 EVP_DigestInit(&md, EVP_sha1());
2211 EVP_DigestUpdate(&md, in, len);
2212 EVP_DigestFinal(&md, out, NULL);
2213 EVP_MD_CTX_cleanup(&md); /* new function call */
2217 *) Make DES key schedule conform to the usual scheme, as well as
2218 correcting its structure. This means that calls to DES functions
2219 now have to pass a pointer to a des_key_schedule instead of a
2220 plain des_key_schedule (which was actually always a pointer
2223 des_key_schedule ks;
2225 des_set_key_checked(..., &ks);
2226 des_ncbc_encrypt(..., &ks, ...);
2228 (Note that a later change renames 'des_...' into 'DES_...'.)
2231 *) Initial reduction of linker bloat: the use of some functions, such as
2232 PEM causes large amounts of unused functions to be linked in due to
2233 poor organisation. For example pem_all.c contains every PEM function
2234 which has a knock on effect of linking in large amounts of (unused)
2235 ASN1 code. Grouping together similar functions and splitting unrelated
2236 functions prevents this.
2239 *) Cleanup of EVP macros.
2242 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2243 correct _ecb suffix.
2246 *) Add initial OCSP responder support to ocsp application. The
2247 revocation information is handled using the text based index
2248 use by the ca application. The responder can either handle
2249 requests generated internally, supplied in files (for example
2250 via a CGI script) or using an internal minimal server.
2253 *) Add configuration choices to get zlib compression for TLS.
2256 *) Changes to Kerberos SSL for RFC 2712 compliance:
2257 1. Implemented real KerberosWrapper, instead of just using
2258 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2259 2. Implemented optional authenticator field of KerberosWrapper.
2261 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2262 and authenticator structs; see crypto/krb5/.
2264 Generalized Kerberos calls to support multiple Kerberos libraries.
2265 [Vern Staats <staatsvr@asc.hpc.mil>,
2266 Jeffrey Altman <jaltman@columbia.edu>
2267 via Richard Levitte]
2269 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2270 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2271 values for each of the key sizes rather than having just
2272 parameters (and 'speed' generating keys each time).
2275 *) Speed up EVP routines.
2278 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2279 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2280 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2281 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2283 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2284 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2285 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2288 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2290 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2293 *) Added the OS2-EMX target.
2294 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2296 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2297 to support NCONF routines in extension code. New function CONF_set_nconf()
2298 to allow functions which take an NCONF to also handle the old LHASH
2299 structure: this means that the old CONF compatible routines can be
2300 retained (in particular wrt extensions) without having to duplicate the
2301 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2304 *) Enhance the general user interface with mechanisms for inner control
2305 and with possibilities to have yes/no kind of prompts.
2308 *) Change all calls to low level digest routines in the library and
2309 applications to use EVP. Add missing calls to HMAC_cleanup() and
2310 don't assume HMAC_CTX can be copied using memcpy().
2311 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2313 *) Add the possibility to control engines through control names but with
2314 arbitrary arguments instead of just a string.
2315 Change the key loaders to take a UI_METHOD instead of a callback
2316 function pointer. NOTE: this breaks binary compatibility with earlier
2317 versions of OpenSSL [engine].
2318 Adapt the nCipher code for these new conditions and add a card insertion
2322 *) Enhance the general user interface with mechanisms to better support
2323 dialog box interfaces, application-defined prompts, the possibility
2324 to use defaults (for example default passwords from somewhere else)
2325 and interrupts/cancellations.
2328 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2329 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2332 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2333 tidy up some unnecessarily weird code in 'sk_new()').
2334 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2336 *) Change the key loading routines for ENGINEs to use the same kind
2337 callback (pem_password_cb) as all other routines that need this
2341 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2342 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2343 than this minimum value is recommended.
2346 *) New random seeder for OpenVMS, using the system process statistics
2347 that are easily reachable.
2350 *) Windows apparently can't transparently handle global
2351 variables defined in DLLs. Initialisations such as:
2353 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2355 wont compile. This is used by the any applications that need to
2356 declare their own ASN1 modules. This was fixed by adding the option
2357 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2358 needed for static libraries under Win32.
2361 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2362 setting of purpose and trust fields. New X509_STORE trust and
2363 purpose functions and tidy up setting in other SSL functions.
2366 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2367 structure. These are inherited by X509_STORE_CTX when it is
2368 initialised. This allows various defaults to be set in the
2369 X509_STORE structure (such as flags for CRL checking and custom
2370 purpose or trust settings) for functions which only use X509_STORE_CTX
2371 internally such as S/MIME.
2373 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2374 trust settings if they are not set in X509_STORE. This allows X509_STORE
2375 purposes and trust (in S/MIME for example) to override any set by default.
2377 Add command line options for CRL checking to smime, s_client and s_server
2381 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2382 are set then the CRL is looked up in the X509_STORE structure and
2383 its validity and signature checked, then if the certificate is found
2384 in the CRL the verify fails with a revoked error.
2386 Various new CRL related callbacks added to X509_STORE_CTX structure.
2388 Command line options added to 'verify' application to support this.
2390 This needs some additional work, such as being able to handle multiple
2391 CRLs with different times, extension based lookup (rather than just
2392 by subject name) and ultimately more complete V2 CRL extension
2396 *) Add a general user interface API (crypto/ui/). This is designed
2397 to replace things like des_read_password and friends (backward
2398 compatibility functions using this new API are provided).
2399 The purpose is to remove prompting functions from the DES code
2400 section as well as provide for prompting through dialog boxes in
2401 a window system and the like.
2404 *) Add "ex_data" support to ENGINE so implementations can add state at a
2405 per-structure level rather than having to store it globally.
2408 *) Make it possible for ENGINE structures to be copied when retrieved by
2409 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2410 This causes the "original" ENGINE structure to act like a template,
2411 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2412 operational state can be localised to each ENGINE structure, despite the
2413 fact they all share the same "methods". New ENGINE structures returned in
2414 this case have no functional references and the return value is the single
2415 structural reference. This matches the single structural reference returned
2416 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2420 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2421 needs to match any other type at all we need to manually clear the
2425 *) Changes to the "openssl engine" utility to include;
2426 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2427 about an ENGINE's available control commands.
2428 - executing control commands from command line arguments using the
2429 '-pre' and '-post' switches. '-post' is only used if '-t' is
2430 specified and the ENGINE is successfully initialised. The syntax for
2431 the individual commands are colon-separated, for example;
2432 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2435 *) New dynamic control command support for ENGINEs. ENGINEs can now
2436 declare their own commands (numbers), names (strings), descriptions,
2437 and input types for run-time discovery by calling applications. A
2438 subset of these commands are implicitly classed as "executable"
2439 depending on their input type, and only these can be invoked through
2440 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2441 can be based on user input, config files, etc). The distinction is
2442 that "executable" commands cannot return anything other than a boolean
2443 result and can only support numeric or string input, whereas some
2444 discoverable commands may only be for direct use through
2445 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2446 pointers, or other custom uses. The "executable" commands are to
2447 support parameterisations of ENGINE behaviour that can be
2448 unambiguously defined by ENGINEs and used consistently across any
2449 OpenSSL-based application. Commands have been added to all the
2450 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2451 control over shared-library paths without source code alterations.
2454 *) Changed all ENGINE implementations to dynamically allocate their
2455 ENGINEs rather than declaring them statically. Apart from this being
2456 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2457 this also allows the implementations to compile without using the
2458 internal engine_int.h header.
2461 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2462 'const' value. Any code that should be able to modify a RAND_METHOD
2463 should already have non-const pointers to it (ie. they should only
2464 modify their own ones).
2467 *) Made a variety of little tweaks to the ENGINE code.
2468 - "atalla" and "ubsec" string definitions were moved from header files
2469 to C code. "nuron" string definitions were placed in variables
2470 rather than hard-coded - allowing parameterisation of these values
2471 later on via ctrl() commands.
2472 - Removed unused "#if 0"'d code.
2473 - Fixed engine list iteration code so it uses ENGINE_free() to release
2474 structural references.
2475 - Constified the RAND_METHOD element of ENGINE structures.
2476 - Constified various get/set functions as appropriate and added
2477 missing functions (including a catch-all ENGINE_cpy that duplicates
2478 all ENGINE values onto a new ENGINE except reference counts/state).
2479 - Removed NULL parameter checks in get/set functions. Setting a method
2480 or function to NULL is a way of cancelling out a previously set
2481 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2482 and doesn't justify the extra error symbols and code.
2483 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2484 flags from engine_int.h to engine.h.
2485 - Changed prototypes for ENGINE handler functions (init(), finish(),
2486 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2489 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2490 to the algorithm using long division. The binary algorithm can be
2491 used only if the modulus is odd. On 32-bit systems, it is faster
2492 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2493 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2494 up to 450 bits. In 64-bit environments, the binary algorithm
2495 appears to be advantageous for much longer moduli; here we use it
2496 for moduli up to 2048 bits.
2499 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2500 could not support the combine flag in choice fields.
2503 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2504 extensions from a certificate request to the certificate.
2507 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2508 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2509 file: this allows the display of the certificate about to be
2510 signed to be customised, to allow certain fields to be included
2511 or excluded and extension details. The old system didn't display
2512 multicharacter strings properly, omitted fields not in the policy
2513 and couldn't display additional details such as extensions.
2516 *) Function EC_POINTs_mul for multiple scalar multiplication
2517 of an arbitrary number of elliptic curve points
2518 \sum scalars[i]*points[i],
2519 optionally including the generator defined for the EC_GROUP:
2520 scalar*generator + \sum scalars[i]*points[i].
2522 EC_POINT_mul is a simple wrapper function for the typical case
2523 that the point list has just one item (besides the optional
2527 *) First EC_METHODs for curves over GF(p):
2529 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2530 operations and provides various method functions that can also
2531 operate with faster implementations of modular arithmetic.
2533 EC_GFp_mont_method() reuses most functions that are part of
2534 EC_GFp_simple_method, but uses Montgomery arithmetic.
2536 [Bodo Moeller; point addition and point doubling
2537 implementation directly derived from source code provided by
2538 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2540 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2541 crypto/ec/ec_lib.c):
2543 Curves are EC_GROUP objects (with an optional group generator)
2544 based on EC_METHODs that are built into the library.
2546 Points are EC_POINT objects based on EC_GROUP objects.
2548 Most of the framework would be able to handle curves over arbitrary
2549 finite fields, but as there are no obvious types for fields other
2550 than GF(p), some functions are limited to that for now.
2553 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2554 that the file contains a complete HTTP response.
2557 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2558 change the def and num file printf format specifier from "%-40sXXX"
2559 to "%-39s XXX". The latter will always guarantee a space after the
2560 field while the former will cause them to run together if the field
2561 is 40 of more characters long.
2564 *) Constify the cipher and digest 'method' functions and structures
2565 and modify related functions to take constant EVP_MD and EVP_CIPHER
2569 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2570 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2573 *) Modify EVP_Digest*() routines so they now return values. Although the
2574 internal software routines can never fail additional hardware versions
2578 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2580 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2581 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2584 ERR_R_NESTED_ASN1_ERROR
2586 ERR_R_MISSING_ASN1_EOS
2587 were 4 .. 9, conflicting with
2588 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2590 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2591 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2593 Add new error code 'ERR_R_INTERNAL_ERROR'.
2596 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2600 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2601 sets the subject name for a new request or supersedes the
2602 subject name in a given request. Formats that can be parsed are
2603 'CN=Some Name, OU=myOU, C=IT'
2605 'CN=Some Name/OU=myOU/C=IT'.
2607 Add options '-batch' and '-verbose' to 'openssl req'.
2608 [Massimiliano Pala <madwolf@hackmasters.net>]
2610 *) Introduce the possibility to access global variables through
2611 functions on platform were that's the best way to handle exporting
2612 global variables in shared libraries. To enable this functionality,
2613 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2614 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2615 is normally done by Configure or something similar).
2617 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2618 in the source file (foo.c) like this:
2620 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2621 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2623 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2624 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2626 OPENSSL_DECLARE_GLOBAL(int,foo);
2627 #define foo OPENSSL_GLOBAL_REF(foo)
2628 OPENSSL_DECLARE_GLOBAL(double,bar);
2629 #define bar OPENSSL_GLOBAL_REF(bar)
2631 The #defines are very important, and therefore so is including the
2632 header file everywhere where the defined globals are used.
2634 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2635 of ASN.1 items, but that structure is a bit different.
2637 The largest change is in util/mkdef.pl which has been enhanced with
2638 better and easier to understand logic to choose which symbols should
2639 go into the Windows .def files as well as a number of fixes and code
2640 cleanup (among others, algorithm keywords are now sorted
2641 lexicographically to avoid constant rewrites).
2644 *) In BN_div() keep a copy of the sign of 'num' before writing the
2645 result to 'rm' because if rm==num the value will be overwritten
2646 and produce the wrong result if 'num' is negative: this caused
2647 problems with BN_mod() and BN_nnmod().
2650 *) Function OCSP_request_verify(). This checks the signature on an
2651 OCSP request and verifies the signer certificate. The signer
2652 certificate is just checked for a generic purpose and OCSP request
2656 *) Add OCSP_check_validity() function to check the validity of OCSP
2657 responses. OCSP responses are prepared in real time and may only
2658 be a few seconds old. Simply checking that the current time lies
2659 between thisUpdate and nextUpdate max reject otherwise valid responses
2660 caused by either OCSP responder or client clock inaccuracy. Instead
2661 we allow thisUpdate and nextUpdate to fall within a certain period of
2662 the current time. The age of the response can also optionally be
2663 checked. Two new options -validity_period and -status_age added to
2667 *) If signature or public key algorithm is unrecognized print out its
2668 OID rather that just UNKNOWN.
2671 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2672 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2673 ID to be generated from the issuer certificate alone which can then be
2674 passed to OCSP_id_issuer_cmp().
2677 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2678 ASN1 modules to export functions returning ASN1_ITEM pointers
2679 instead of the ASN1_ITEM structures themselves. This adds several
2680 new macros which allow the underlying ASN1 function/structure to
2681 be accessed transparently. As a result code should not use ASN1_ITEM
2682 references directly (such as &X509_it) but instead use the relevant
2683 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2684 use of the new ASN1 code on platforms where exporting structures
2685 is problematical (for example in shared libraries) but exporting
2686 functions returning pointers to structures is not.
2689 *) Add support for overriding the generation of SSL/TLS session IDs.
2690 These callbacks can be registered either in an SSL_CTX or per SSL.
2691 The purpose of this is to allow applications to control, if they wish,
2692 the arbitrary values chosen for use as session IDs, particularly as it
2693 can be useful for session caching in multiple-server environments. A
2694 command-line switch for testing this (and any client code that wishes
2695 to use such a feature) has been added to "s_server".
2696 [Geoff Thorpe, Lutz Jaenicke]
2698 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2699 of the form '#if defined(...) || defined(...) || ...' and
2700 '#if !defined(...) && !defined(...) && ...'. This also avoids
2701 the growing number of special cases it was previously handling.
2704 *) Make all configuration macros available for application by making
2705 sure they are available in opensslconf.h, by giving them names starting
2706 with "OPENSSL_" to avoid conflicts with other packages and by making
2707 sure e_os2.h will cover all platform-specific cases together with
2709 Additionally, it is now possible to define configuration/platform-
2710 specific names (called "system identities"). In the C code, these
2711 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2712 macro with the name beginning with "OPENSSL_SYS_", which is determined
2713 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2717 *) New option -set_serial to 'req' and 'x509' this allows the serial
2718 number to use to be specified on the command line. Previously self
2719 signed certificates were hard coded with serial number 0 and the
2720 CA options of 'x509' had to use a serial number in a file which was
2724 *) New options to 'ca' utility to support V2 CRL entry extensions.
2725 Currently CRL reason, invalidity date and hold instruction are
2726 supported. Add new CRL extensions to V3 code and some new objects.
2729 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2730 disable standard block padding (aka PKCS#5 padding) in the EVP
2731 API, which was previously mandatory. This means that the data is
2732 not padded in any way and so the total length much be a multiple
2733 of the block size, otherwise an error occurs.
2736 *) Initial (incomplete) OCSP SSL support.
2739 *) New function OCSP_parse_url(). This splits up a URL into its host,
2740 port and path components: primarily to parse OCSP URLs. New -url
2741 option to ocsp utility.
2744 *) New nonce behavior. The return value of OCSP_check_nonce() now
2745 reflects the various checks performed. Applications can decide
2746 whether to tolerate certain situations such as an absent nonce
2747 in a response when one was present in a request: the ocsp application
2748 just prints out a warning. New function OCSP_add1_basic_nonce()
2749 this is to allow responders to include a nonce in a response even if
2750 the request is nonce-less.
2753 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2754 skipped when using openssl x509 multiple times on a single input file,
2755 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2758 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2759 set string type: to handle setting ASN1_TIME structures. Fix ca
2760 utility to correctly initialize revocation date of CRLs.
2763 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2764 the clients preferred ciphersuites and rather use its own preferences.
2765 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2766 Internet Explorer by ensuring unchanged hash method during stepup.
2767 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2770 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2771 to aes and add a new 'exist' option to print out symbols that don't
2775 *) Additional options to ocsp utility to allow flags to be set and
2776 additional certificates supplied.
2779 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2780 OCSP client a number of certificate to only verify the response
2784 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2785 handle the new API. Currently only ECB, CBC modes supported. Add new
2788 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2789 Encryption Standard (AES) Ciphersuites for Transport Layer
2790 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2791 not enabled by default and were not part of the "ALL" ciphersuite
2792 alias because they were not yet official; they could be
2793 explicitly requested by specifying the "AESdraft" ciphersuite
2794 group alias. In the final release of OpenSSL 0.9.7, the group
2795 alias is called "AES" and is part of "ALL".)
2796 [Ben Laurie, Steve Henson, Bodo Moeller]
2798 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2799 request to response.
2802 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2803 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2804 extract information from a certificate request. OCSP_response_create()
2805 creates a response and optionally adds a basic response structure.
2806 OCSP_basic_add1_status() adds a complete single response to a basic
2807 response and returns the OCSP_SINGLERESP structure just added (to allow
2808 extensions to be included for example). OCSP_basic_add1_cert() adds a
2809 certificate to a basic response and OCSP_basic_sign() signs a basic
2810 response with various flags. New helper functions ASN1_TIME_check()
2811 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2812 (converts ASN1_TIME to GeneralizedTime).
2815 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2816 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2817 structure from a certificate. X509_pubkey_digest() digests the public_key
2818 contents: this is used in various key identifiers.
2821 *) Make sk_sort() tolerate a NULL argument.
2822 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2824 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2825 passed by the function are trusted implicitly. If any of them signed the
2826 response then it is assumed to be valid and is not verified.
2829 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2830 to data. This was previously part of the PKCS7 ASN1 code. This
2831 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2832 [Steve Henson, reported by Kenneth R. Robinette
2833 <support@securenetterm.com>]
2835 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2836 routines: without these tracing memory leaks is very painful.
2837 Fix leaks in PKCS12 and PKCS7 routines.
2840 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2841 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2842 effectively meant GeneralizedTime would never be used. Now it
2843 is initialised to -1 but X509_time_adj() now has to check the value
2844 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2845 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2846 [Steve Henson, reported by Kenneth R. Robinette
2847 <support@securenetterm.com>]
2849 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2850 result in a zero length in the ASN1_INTEGER structure which was
2851 not consistent with the structure when d2i_ASN1_INTEGER() was used
2852 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2853 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2854 where it did not print out a minus for negative ASN1_INTEGER.
2857 *) Add summary printout to ocsp utility. The various functions which
2858 convert status values to strings have been renamed to:
2859 OCSP_response_status_str(), OCSP_cert_status_str() and
2860 OCSP_crl_reason_str() and are no longer static. New options
2861 to verify nonce values and to disable verification. OCSP response
2862 printout format cleaned up.
2865 *) Add additional OCSP certificate checks. These are those specified
2866 in RFC2560. This consists of two separate checks: the CA of the
2867 certificate being checked must either be the OCSP signer certificate
2868 or the issuer of the OCSP signer certificate. In the latter case the
2869 OCSP signer certificate must contain the OCSP signing extended key
2870 usage. This check is performed by attempting to match the OCSP
2871 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2872 in the OCSP_CERTID structures of the response.
2875 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2876 and related routines. This uses the standard OpenSSL certificate
2877 verify routines to perform initial checks (just CA validity) and
2878 to obtain the certificate chain. Then additional checks will be
2879 performed on the chain. Currently the root CA is checked to see
2880 if it is explicitly trusted for OCSP signing. This is used to set
2881 a root CA as a global signing root: that is any certificate that
2882 chains to that CA is an acceptable OCSP signing certificate.
2885 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2886 extensions from a separate configuration file.
2887 As when reading extensions from the main configuration file,
2888 the '-extensions ...' option may be used for specifying the
2890 [Massimiliano Pala <madwolf@comune.modena.it>]
2892 *) New OCSP utility. Allows OCSP requests to be generated or
2893 read. The request can be sent to a responder and the output
2894 parsed, outputed or printed in text form. Not complete yet:
2895 still needs to check the OCSP response validity.
2898 *) New subcommands for 'openssl ca':
2899 'openssl ca -status <serial>' prints the status of the cert with
2900 the given serial number (according to the index file).
2901 'openssl ca -updatedb' updates the expiry status of certificates
2903 [Massimiliano Pala <madwolf@comune.modena.it>]
2905 *) New '-newreq-nodes' command option to CA.pl. This is like
2906 '-newreq', but calls 'openssl req' with the '-nodes' option
2907 so that the resulting key is not encrypted.
2908 [Damien Miller <djm@mindrot.org>]
2910 *) New configuration for the GNU Hurd.
2911 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2913 *) Initial code to implement OCSP basic response verify. This
2914 is currently incomplete. Currently just finds the signer's
2915 certificate and verifies the signature on the response.
2918 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2919 value of OPENSSLDIR. This is available via the new '-d' option
2920 to 'openssl version', and is also included in 'openssl version -a'.
2923 *) Allowing defining memory allocation callbacks that will be given
2924 file name and line number information in additional arguments
2925 (a const char* and an int). The basic functionality remains, as
2926 well as the original possibility to just replace malloc(),
2927 realloc() and free() by functions that do not know about these
2928 additional arguments. To register and find out the current
2929 settings for extended allocation functions, the following
2930 functions are provided:
2932 CRYPTO_set_mem_ex_functions
2933 CRYPTO_set_locked_mem_ex_functions
2934 CRYPTO_get_mem_ex_functions
2935 CRYPTO_get_locked_mem_ex_functions
2937 These work the same way as CRYPTO_set_mem_functions and friends.
2938 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2939 extended allocation function is enabled.
2940 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2941 a conventional allocation function is enabled.
2942 [Richard Levitte, Bodo Moeller]
2944 *) Finish off removing the remaining LHASH function pointer casts.
2945 There should no longer be any prototype-casting required when using
2946 the LHASH abstraction, and any casts that remain are "bugs". See
2947 the callback types and macros at the head of lhash.h for details
2948 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2951 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2952 If /dev/[u]random devices are not available or do not return enough
2953 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2955 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2956 /etc/entropy will be queried once each in this sequence, quering stops
2957 when enough entropy was collected without querying more sockets.
2960 *) Change the Unix RAND_poll() variant to be able to poll several
2961 random devices, as specified by DEVRANDOM, until a sufficient amount
2962 of data has been collected. We spend at most 10 ms on each file
2963 (select timeout) and read in non-blocking mode. DEVRANDOM now
2964 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2965 (previously it was just the string "/dev/urandom"), so on typical
2966 platforms the 10 ms delay will never occur.
2967 Also separate out the Unix variant to its own file, rand_unix.c.
2968 For VMS, there's a currently-empty rand_vms.c.
2971 *) Move OCSP client related routines to ocsp_cl.c. These
2972 provide utility functions which an application needing
2973 to issue a request to an OCSP responder and analyse the
2974 response will typically need: as opposed to those which an
2975 OCSP responder itself would need which will be added later.
2977 OCSP_request_sign() signs an OCSP request with an API similar
2978 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2979 response. OCSP_response_get1_basic() extracts basic response
2980 from response. OCSP_resp_find_status(): finds and extracts status
2981 information from an OCSP_CERTID structure (which will be created
2982 when the request structure is built). These are built from lower
2983 level functions which work on OCSP_SINGLERESP structures but
2984 wont normally be used unless the application wishes to examine
2985 extensions in the OCSP response for example.
2987 Replace nonce routines with a pair of functions.
2988 OCSP_request_add1_nonce() adds a nonce value and optionally
2989 generates a random value. OCSP_check_nonce() checks the
2990 validity of the nonce in an OCSP response.
2993 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2994 This doesn't copy the supplied OCSP_CERTID and avoids the
2995 need to free up the newly created id. Change return type
2996 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2997 This can then be used to add extensions to the request.
2998 Deleted OCSP_request_new(), since most of its functionality
2999 is now in OCSP_REQUEST_new() (and the case insensitive name
3000 clash) apart from the ability to set the request name which
3001 will be added elsewhere.
3004 *) Update OCSP API. Remove obsolete extensions argument from
3005 various functions. Extensions are now handled using the new
3006 OCSP extension code. New simple OCSP HTTP function which
3007 can be used to send requests and parse the response.
3010 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3011 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3012 uses the special reorder version of SET OF to sort the attributes
3013 and reorder them to match the encoded order. This resolves a long
3014 standing problem: a verify on a PKCS7 structure just after signing
3015 it used to fail because the attribute order did not match the
3016 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3017 it uses the received order. This is necessary to tolerate some broken
3018 software that does not order SET OF. This is handled by encoding
3019 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3020 to produce the required SET OF.
3023 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3024 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3025 files to get correct declarations of the ASN.1 item variables.
3028 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3029 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3030 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3031 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3032 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3033 ASN1_ITEM and no wrapper functions.
3036 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3037 replace the old function pointer based I/O routines. Change most of
3038 the *_d2i_bio() and *_d2i_fp() functions to use these.
3041 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3042 lines, recognice more "algorithms" that can be deselected, and make
3043 it complain about algorithm deselection that isn't recognised.
3046 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3047 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3048 to use new functions. Add NO_ASN1_OLD which can be set to remove
3049 some old style ASN1 functions: this can be used to determine if old
3050 code will still work when these eventually go away.
3053 *) New extension functions for OCSP structures, these follow the
3054 same conventions as certificates and CRLs.
3057 *) New function X509V3_add1_i2d(). This automatically encodes and
3058 adds an extension. Its behaviour can be customised with various
3059 flags to append, replace or delete. Various wrappers added for
3060 certifcates and CRLs.
3063 *) Fix to avoid calling the underlying ASN1 print routine when
3064 an extension cannot be parsed. Correct a typo in the
3065 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3068 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3069 entries for variables.
3072 *) Add functionality to apps/openssl.c for detecting locking
3073 problems: As the program is single-threaded, all we have
3074 to do is register a locking callback using an array for
3075 storing which locks are currently held by the program.
3078 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3079 SSL_get_ex_data_X509_STORE_idx(), which is used in
3080 ssl_verify_cert_chain() and thus can be called at any time
3081 during TLS/SSL handshakes so that thread-safety is essential.
3082 Unfortunately, the ex_data design is not at all suited
3083 for multi-threaded use, so it probably should be abolished.
3086 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3087 [Broadcom, tweaked and integrated by Geoff Thorpe]
3089 *) Move common extension printing code to new function
3090 X509V3_print_extensions(). Reorganise OCSP print routines and
3091 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3094 *) New function X509_signature_print() to remove duplication in some
3098 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3099 set (this was treated exactly the same as SET OF previously). This
3100 is used to reorder the STACK representing the structure to match the
3101 encoding. This will be used to get round a problem where a PKCS7
3102 structure which was signed could not be verified because the STACK
3103 order did not reflect the encoded order.
3106 *) Reimplement the OCSP ASN1 module using the new code.
3109 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3110 for its ASN1 operations. The old style function pointers still exist
3111 for now but they will eventually go away.
3114 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3115 completely replaces the old ASN1 functionality with a table driven
3116 encoder and decoder which interprets an ASN1_ITEM structure describing
3117 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3118 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3119 has also been converted to the new form.
3122 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3123 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3124 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3125 for negative moduli.
3128 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3129 of not touching the result's sign bit.
3132 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3136 *) Changed the LHASH code to use prototypes for callbacks, and created
3137 macros to declare and implement thin (optionally static) functions
3138 that provide type-safety and avoid function pointer casting for the
3139 type-specific callbacks.
3142 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3144 [Veers Staats <staatsvr@asc.hpc.mil>,
3145 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3147 *) Reformat the FAQ so the different questions and answers can be divided
3148 in sections depending on the subject.
3151 *) Have the zlib compression code load ZLIB.DLL dynamically under
3155 *) New function BN_mod_sqrt for computing square roots modulo a prime
3156 (using the probabilistic Tonelli-Shanks algorithm unless
3157 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3158 be handled deterministically).
3159 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3161 *) Make BN_mod_inverse faster by explicitly handling small quotients
3162 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3163 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3166 *) New function BN_kronecker.
3169 *) Fix BN_gcd so that it works on negative inputs; the result is
3170 positive unless both parameters are zero.
3171 Previously something reasonably close to an infinite loop was
3172 possible because numbers could be growing instead of shrinking
3173 in the implementation of Euclid's algorithm.
3176 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3177 sign of the number in question.
3179 Fix BN_is_word(a,w) to work correctly for w == 0.
3181 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3182 because its test if the absolute value of 'a' equals 'w'.
3183 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3184 it exists mostly for use in the implementations of BN_is_zero(),
3185 BN_is_one(), and BN_is_word().
3188 *) New function BN_swap.
3191 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3192 the exponentiation functions are more likely to produce reasonable
3193 results on negative inputs.
3196 *) Change BN_mod_mul so that the result is always non-negative.
3197 Previously, it could be negative if one of the factors was negative;
3198 I don't think anyone really wanted that behaviour.
3201 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3202 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3203 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3204 and add new functions:
3213 BN_mod_lshift1_quick
3217 These functions always generate non-negative results.
3219 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3220 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3222 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3223 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3224 be reduced modulo m.
3225 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3228 The following entry accidentily appeared in the CHANGES file
3229 distributed with OpenSSL 0.9.7. The modifications described in
3230 it do *not* apply to OpenSSL 0.9.7.
3232 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3233 was actually never needed) and in BN_mul(). The removal in BN_mul()
3234 required a small change in bn_mul_part_recursive() and the addition
3235 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3236 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3237 bn_sub_words() and bn_add_words() except they take arrays with
3242 *) In 'openssl passwd', verify passwords read from the terminal
3243 unless the '-salt' option is used (which usually means that
3244 verification would just waste user's time since the resulting
3245 hash is going to be compared with some given password hash)
3246 or the new '-noverify' option is used.
3248 This is an incompatible change, but it does not affect
3249 non-interactive use of 'openssl passwd' (passwords on the command
3250 line, '-stdin' option, '-in ...' option) and thus should not
3254 *) Remove all references to RSAref, since there's no more need for it.
3257 *) Make DSO load along a path given through an environment variable
3258 (SHLIB_PATH) with shl_load().
3261 *) Constify the ENGINE code as a result of BIGNUM constification.
3262 Also constify the RSA code and most things related to it. In a
3263 few places, most notable in the depth of the ASN.1 code, ugly
3264 casts back to non-const were required (to be solved at a later
3268 *) Make it so the openssl application has all engines loaded by default.
3271 *) Constify the BIGNUM routines a little more.
3274 *) Add the following functions:
3276 ENGINE_load_cswift()
3278 ENGINE_load_atalla()
3280 ENGINE_load_builtin_engines()
3282 That way, an application can itself choose if external engines that
3283 are built-in in OpenSSL shall ever be used or not. The benefit is
3284 that applications won't have to be linked with libdl or other dso
3285 libraries unless it's really needed.
3287 Changed 'openssl engine' to load all engines on demand.
3288 Changed the engine header files to avoid the duplication of some
3289 declarations (they differed!).
3292 *) 'openssl engine' can now list capabilities.
3295 *) Better error reporting in 'openssl engine'.
3298 *) Never call load_dh_param(NULL) in s_server.
3301 *) Add engine application. It can currently list engines by name and
3302 identity, and test if they are actually available.
3305 *) Improve RPM specification file by forcing symbolic linking and making
3306 sure the installed documentation is also owned by root.root.
3307 [Damien Miller <djm@mindrot.org>]
3309 *) Give the OpenSSL applications more possibilities to make use of
3310 keys (public as well as private) handled by engines.
3313 *) Add OCSP code that comes from CertCo.
3316 *) Add VMS support for the Rijndael code.
3319 *) Added untested support for Nuron crypto accelerator.
3322 *) Add support for external cryptographic devices. This code was
3323 previously distributed separately as the "engine" branch.
3324 [Geoff Thorpe, Richard Levitte]
3326 *) Rework the filename-translation in the DSO code. It is now possible to
3327 have far greater control over how a "name" is turned into a filename
3328 depending on the operating environment and any oddities about the
3329 different shared library filenames on each system.
3332 *) Support threads on FreeBSD-elf in Configure.
3335 *) Fix for SHA1 assembly problem with MASM: it produces
3336 warnings about corrupt line number information when assembling
3337 with debugging information. This is caused by the overlapping
3339 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3342 NCONF_get_number() has no error checking at all. As a replacement,
3343 NCONF_get_number_e() is defined (_e for "error checking") and is
3344 promoted strongly. The old NCONF_get_number is kept around for
3345 binary backward compatibility.
3346 Make it possible for methods to load from something other than a BIO,
3347 by providing a function pointer that is given a name instead of a BIO.
3348 For example, this could be used to load configuration data from an
3352 *) Fix for non blocking accept BIOs. Added new I/O special reason
3353 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3354 with non blocking I/O was not possible because no retry code was
3355 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3359 *) Added the beginnings of Rijndael support.
3362 *) Fix for bug in DirectoryString mask setting. Add support for
3363 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3364 to allow certificate printing to more controllable, additional
3365 'certopt' option to 'x509' to allow new printing options to be
3369 *) Clean old EAY MD5 hack from e_os.h.
3372 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3374 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3375 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3376 [Joe Orton, Steve Henson]
3378 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3380 *) Fix additional bug revealed by the NISCC test suite:
3382 Stop bug triggering large recursion when presented with
3383 certain ASN.1 tags (CVE-2003-0851)
3386 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3388 *) Fix various bugs revealed by running the NISCC test suite:
3390 Stop out of bounds reads in the ASN1 code when presented with
3391 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3393 If verify callback ignores invalid public key errors don't try to check
3394 certificate signature with the NULL public key.
3398 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3399 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3403 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3404 extra data after the compression methods not only for TLS 1.0
3405 but also for SSL 3.0 (as required by the specification).
3406 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3408 *) Change X509_certificate_type() to mark the key as exported/exportable
3409 when it's 512 *bits* long, not 512 bytes.
3412 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3414 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3415 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3416 a protocol version number mismatch like a decryption error
3417 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3420 *) Turn on RSA blinding by default in the default implementation
3421 to avoid a timing attack. Applications that don't want it can call
3422 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3423 They would be ill-advised to do so in most cases.
3424 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3426 *) Change RSA blinding code so that it works when the PRNG is not
3427 seeded (in this case, the secret RSA exponent is abused as
3428 an unpredictable seed -- if it is not unpredictable, there
3429 is no point in blinding anyway). Make RSA blinding thread-safe
3430 by remembering the creator's thread ID in rsa->blinding and
3431 having all other threads use local one-time blinding factors
3432 (this requires more computation than sharing rsa->blinding, but
3433 avoids excessive locking; and if an RSA object is not shared
3434 between threads, blinding will still be very fast).
3437 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3439 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3440 via timing by performing a MAC computation even if incorrrect
3441 block cipher padding has been found. This is a countermeasure
3442 against active attacks where the attacker has to distinguish
3443 between bad padding and a MAC verification error. (CVE-2003-0078)
3445 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3446 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3447 Martin Vuagnoux (EPFL, Ilion)]
3449 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3451 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3452 memory from it's contents. This is done with a counter that will
3453 place alternating values in each byte. This can be used to solve
3454 two issues: 1) the removal of calls to memset() by highly optimizing
3455 compilers, and 2) cleansing with other values than 0, since those can
3456 be read through on certain media, for example a swap space on disk.
3459 *) Bugfix: client side session caching did not work with external caching,
3460 because the session->cipher setting was not restored when reloading
3461 from the external cache. This problem was masked, when
3462 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3463 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3466 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3467 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3468 [Zeev Lieber <zeev-l@yahoo.com>]
3470 *) Undo an undocumented change introduced in 0.9.6e which caused
3471 repeated calls to OpenSSL_add_all_ciphers() and
3472 OpenSSL_add_all_digests() to be ignored, even after calling
3476 *) Change the default configuration reader to deal with last line not
3477 being properly terminated.
3480 *) Change X509_NAME_cmp() so it applies the special rules on handling
3481 DN values that are of type PrintableString, as well as RDNs of type
3482 emailAddress where the value has the type ia5String.
3483 [stefank@valicert.com via Richard Levitte]
3485 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3486 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3487 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3488 the bitwise-OR of the two for use by the majority of applications
3489 wanting this behaviour, and update the docs. The documented
3490 behaviour and actual behaviour were inconsistent and had been
3491 changing anyway, so this is more a bug-fix than a behavioural
3493 [Geoff Thorpe, diagnosed by Nadav Har'El]
3495 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3496 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3499 *) Fix initialization code race conditions in
3500 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3501 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3502 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3503 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3504 ssl2_get_cipher_by_char(),
3505 ssl3_get_cipher_by_char().
3506 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3508 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3509 the cached sessions are flushed, as the remove_cb() might use ex_data
3510 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3511 (see [openssl.org #212]).
3512 [Geoff Thorpe, Lutz Jaenicke]
3514 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3515 length, instead of the encoding length to d2i_ASN1_OBJECT.
3518 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3520 *) [In 0.9.6g-engine release:]
3521 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3522 [Lynn Gazis <lgazis@rainbow.com>]
3524 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3526 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3527 and get fix the header length calculation.
3528 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3529 Alon Kantor <alonk@checkpoint.com> (and others),
3532 *) Use proper error handling instead of 'assertions' in buffer
3533 overflow checks added in 0.9.6e. This prevents DoS (the
3534 assertions could call abort()).
3535 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3537 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3539 *) Add various sanity checks to asn1_get_length() to reject
3540 the ASN1 length bytes if they exceed sizeof(long), will appear
3541 negative or the content length exceeds the length of the
3543 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3545 *) Fix cipher selection routines: ciphers without encryption had no flags
3546 for the cipher strength set and where therefore not handled correctly
3547 by the selection routines (PR #130).
3550 *) Fix EVP_dsa_sha macro.
3554 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3555 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3556 that was added in OpenSSL 0.9.6d.
3558 As the countermeasure turned out to be incompatible with some
3559 broken SSL implementations, the new option is part of SSL_OP_ALL.
3560 SSL_OP_ALL is usually employed when compatibility with weird SSL
3561 implementations is desired (e.g. '-bugs' option to 's_client' and
3562 's_server'), so the new option is automatically set in many
3566 *) Changes in security patch:
3568 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3569 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3570 Air Force Materiel Command, USAF, under agreement number
3573 *) Add various sanity checks to asn1_get_length() to reject
3574 the ASN1 length bytes if they exceed sizeof(long), will appear
3575 negative or the content length exceeds the length of the
3576 supplied buffer. (CVE-2002-0659)
3577 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3579 *) Assertions for various potential buffer overflows, not known to
3581 [Ben Laurie (CHATS)]
3583 *) Various temporary buffers to hold ASCII versions of integers were
3584 too small for 64 bit platforms. (CVE-2002-0655)
3585 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3587 *) Remote buffer overflow in SSL3 protocol - an attacker could
3588 supply an oversized session ID to a client. (CVE-2002-0656)
3589 [Ben Laurie (CHATS)]
3591 *) Remote buffer overflow in SSL2 protocol - an attacker could
3592 supply an oversized client master key. (CVE-2002-0656)
3593 [Ben Laurie (CHATS)]
3595 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3597 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3598 encoded as NULL) with id-dsa-with-sha1.
3599 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3601 *) Check various X509_...() return values in apps/req.c.
3602 [Nils Larsch <nla@trustcenter.de>]
3604 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3605 an end-of-file condition would erronously be flagged, when the CRLF
3606 was just at the end of a processed block. The bug was discovered when
3607 processing data through a buffering memory BIO handing the data to a
3608 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3609 <ptsekov@syntrex.com> and Nedelcho Stanev.
3612 *) Implement a countermeasure against a vulnerability recently found
3613 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3614 before application data chunks to avoid the use of known IVs
3615 with data potentially chosen by the attacker.
3618 *) Fix length checks in ssl3_get_client_hello().
3621 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3622 to prevent ssl3_read_internal() from incorrectly assuming that
3623 ssl3_read_bytes() found application data while handshake
3624 processing was enabled when in fact s->s3->in_read_app_data was
3625 merely automatically cleared during the initial handshake.
3626 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3628 *) Fix object definitions for Private and Enterprise: they were not
3629 recognized in their shortname (=lowercase) representation. Extend
3630 obj_dat.pl to issue an error when using undefined keywords instead
3631 of silently ignoring the problem (Svenning Sorensen
3632 <sss@sss.dnsalias.net>).
3635 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3636 generators, i.e. generators other than 2 and 5. (Previously, the
3637 code did not properly initialise the 'add' and 'rem' values to
3638 BN_generate_prime().)
3640 In the new general case, we do not insist that 'generator' is
3641 actually a primitive root: This requirement is rather pointless;
3642 a generator of the order-q subgroup is just as good, if not
3646 *) Map new X509 verification errors to alerts. Discovered and submitted by
3647 Tom Wu <tom@arcot.com>.
3650 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3651 returning non-zero before the data has been completely received
3652 when using non-blocking I/O.
3653 [Bodo Moeller; problem pointed out by John Hughes]
3655 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3656 [Ben Laurie, Lutz Jaenicke]
3658 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3659 Yoram Zahavi <YoramZ@gilian.com>).
3662 *) Add information about CygWin 1.3 and on, and preserve proper
3663 configuration for the versions before that.
3664 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3666 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3667 check whether we deal with a copy of a session and do not delete from
3668 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3669 <izhar@checkpoint.com>.
3672 *) Do not store session data into the internal session cache, if it
3673 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3674 flag is set). Proposed by Aslam <aslam@funk.com>.
3677 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3681 *) [In 0.9.6d-engine release:]
3682 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3683 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3685 *) Add the configuration target linux-s390x.
3686 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3688 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3689 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3690 variable as an indication that a ClientHello message has been
3691 received. As the flag value will be lost between multiple
3692 invocations of ssl3_accept when using non-blocking I/O, the
3693 function may not be aware that a handshake has actually taken
3694 place, thus preventing a new session from being added to the
3697 To avoid this problem, we now set s->new_session to 2 instead of
3698 using a local variable.
3699 [Lutz Jaenicke, Bodo Moeller]
3701 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3702 if the SSL_R_LENGTH_MISMATCH error is detected.
3703 [Geoff Thorpe, Bodo Moeller]
3705 *) New 'shared_ldflag' column in Configure platform table.
3708 *) Fix EVP_CIPHER_mode macro.
3709 ["Dan S. Camper" <dan@bti.net>]
3711 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3712 type, we must throw them away by setting rr->length to 0.
3713 [D P Chang <dpc@qualys.com>]
3715 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3717 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3718 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3719 worked incorrectly for those cases where range = 10..._2 and
3720 3*range is two bits longer than range.)
3723 *) Only add signing time to PKCS7 structures if it is not already
3727 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3728 OBJ_ld_ce should be OBJ_id_ce.
3729 Also some ip-pda OIDs in crypto/objects/objects.txt were
3730 incorrect (cf. RFC 3039).
3731 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3733 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3734 returns early because it has nothing to do.
3735 [Andy Schneider <andy.schneider@bjss.co.uk>]
3737 *) [In 0.9.6c-engine release:]
3738 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3739 [Andy Schneider <andy.schneider@bjss.co.uk>]
3741 *) [In 0.9.6c-engine release:]
3742 Add support for Cryptographic Appliance's keyserver technology.
3743 (Use engine 'keyclient')
3744 [Cryptographic Appliances and Geoff Thorpe]
3746 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3747 is called via tools/c89.sh because arguments have to be
3748 rearranged (all '-L' options must appear before the first object
3750 [Richard Shapiro <rshapiro@abinitio.com>]
3752 *) [In 0.9.6c-engine release:]
3753 Add support for Broadcom crypto accelerator cards, backported
3755 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3757 *) [In 0.9.6c-engine release:]
3758 Add support for SureWare crypto accelerator cards from
3759 Baltimore Technologies. (Use engine 'sureware')
3760 [Baltimore Technologies and Mark Cox]
3762 *) [In 0.9.6c-engine release:]
3763 Add support for crypto accelerator cards from Accelerated
3764 Encryption Processing, www.aep.ie. (Use engine 'aep')
3765 [AEP Inc. and Mark Cox]
3767 *) Add a configuration entry for gcc on UnixWare.
3768 [Gary Benson <gbenson@redhat.com>]
3770 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3771 messages are stored in a single piece (fixed-length part and
3772 variable-length part combined) and fix various bugs found on the way.
3775 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3776 instead. BIO_gethostbyname() does not know what timeouts are
3777 appropriate, so entries would stay in cache even when they have
3779 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3781 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3782 faced with a pathologically small ClientHello fragment that does
3783 not contain client_version: Instead of aborting with an error,
3784 simply choose the highest available protocol version (i.e.,
3785 TLS 1.0 unless it is disabled). In practice, ClientHello
3786 messages are never sent like this, but this change gives us
3787 strictly correct behaviour at least for TLS.
3790 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3791 never resets s->method to s->ctx->method when called from within
3792 one of the SSL handshake functions.
3793 [Bodo Moeller; problem pointed out by Niko Baric]
3795 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3796 (sent using the client's version number) if client_version is
3797 smaller than the protocol version in use. Also change
3798 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3799 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3800 the client will at least see that alert.
3803 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3807 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3808 client receives HelloRequest while in a handshake.
3809 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3811 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3812 should end in 'break', not 'goto end' which circuments various
3813 cleanups done in state SSL_ST_OK. But session related stuff
3814 must be disabled for SSL_ST_OK in the case that we just sent a
3817 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3818 before just sending a HelloRequest.
3819 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3821 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3822 reveal whether illegal block cipher padding was found or a MAC
3823 verification error occured. (Neither SSLerr() codes nor alerts
3824 are directly visible to potential attackers, but the information
3825 may leak via logfiles.)
3827 Similar changes are not required for the SSL 2.0 implementation
3828 because the number of padding bytes is sent in clear for SSL 2.0,
3829 and the extra bytes are just ignored. However ssl/s2_pkt.c
3830 failed to verify that the purported number of padding bytes is in
3834 *) Add OpenUNIX-8 support including shared libraries
3835 (Boyd Lynn Gerber <gerberb@zenez.com>).
3838 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3839 'wristwatch attack' using huge encoding parameters (cf.
3840 James H. Manger's CRYPTO 2001 paper). Note that the
3841 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3842 encoding parameters and hence was not vulnerable.
3845 *) BN_sqr() bug fix.
3846 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3848 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3849 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3850 followed by modular reduction.
3851 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3853 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3854 equivalent based on BN_pseudo_rand() instead of BN_rand().
3857 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3858 This function was broken, as the check for a new client hello message
3859 to handle SGC did not allow these large messages.
3860 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3863 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3866 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3867 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3870 *) Rework the configuration and shared library support for Tru64 Unix.
3871 The configuration part makes use of modern compiler features and
3872 still retains old compiler behavior for those that run older versions
3873 of the OS. The shared library support part includes a variant that
3874 uses the RPATH feature, and is available through the special
3875 configuration target "alpha-cc-rpath", which will never be selected
3877 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3879 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3880 with the same message size as in ssl3_get_certificate_request().
3881 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3882 messages might inadvertently be reject as too long.
3883 [Petr Lampa <lampa@fee.vutbr.cz>]
3885 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3888 *) Modified SSL library such that the verify_callback that has been set
3889 specificly for an SSL object with SSL_set_verify() is actually being
3890 used. Before the change, a verify_callback set with this function was
3891 ignored and the verify_callback() set in the SSL_CTX at the time of
3892 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3893 to allow the necessary settings.
3896 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3897 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3898 done automatically (in contradiction to the requirements of the C
3899 standard). This made problems when used from OpenSSH.
3902 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3903 dh->length and always used
3905 BN_rand_range(priv_key, dh->p).
3907 BN_rand_range() is not necessary for Diffie-Hellman, and this
3908 specific range makes Diffie-Hellman unnecessarily inefficient if
3909 dh->length (recommended exponent length) is much smaller than the
3910 length of dh->p. We could use BN_rand_range() if the order of
3911 the subgroup was stored in the DH structure, but we only have
3916 BN_rand(priv_key, l, ...)
3918 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3924 RSA_eay_public_encrypt
3925 RSA_eay_private_decrypt
3926 RSA_eay_private_encrypt (signing)
3927 RSA_eay_public_decrypt (signature verification)
3929 (default implementations for RSA_public_encrypt,
3930 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3931 always reject numbers >= n.
3934 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3935 to synchronize access to 'locking_thread'. This is necessary on
3936 systems where access to 'locking_thread' (an 'unsigned long'
3937 variable) is not atomic.
3940 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3941 *before* setting the 'crypto_lock_rand' flag. The previous code had
3942 a race condition if 0 is a valid thread ID.
3943 [Travis Vitek <vitek@roguewave.com>]
3945 *) Add support for shared libraries under Irix.
3946 [Albert Chin-A-Young <china@thewrittenword.com>]
3948 *) Add configuration option to build on Linux on both big-endian and
3950 [Ralf Baechle <ralf@uni-koblenz.de>]
3952 *) Add the possibility to create shared libraries on HP-UX.
3955 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3957 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3958 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3959 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3960 PRNG state recovery was possible based on the output of
3961 one PRNG request appropriately sized to gain knowledge on
3962 'md' followed by enough consecutive 1-byte PRNG requests
3963 to traverse all of 'state'.
3965 1. When updating 'md_local' (the current thread's copy of 'md')
3966 during PRNG output generation, hash all of the previous
3967 'md_local' value, not just the half used for PRNG output.
3969 2. Make the number of bytes from 'state' included into the hash
3970 independent from the number of PRNG bytes requested.
3972 The first measure alone would be sufficient to avoid
3973 Markku-Juhani's attack. (Actually it had never occurred
3974 to me that the half of 'md_local' used for chaining was the
3975 half from which PRNG output bytes were taken -- I had always
3976 assumed that the secret half would be used.) The second
3977 measure makes sure that additional data from 'state' is never
3978 mixed into 'md_local' in small portions; this heuristically
3979 further strengthens the PRNG.
3982 *) Fix crypto/bn/asm/mips3.s.
3985 *) When only the key is given to "enc", the IV is undefined. Print out
3986 an error message in this case.
3989 *) Handle special case when X509_NAME is empty in X509 printing routines.
3992 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3993 positive and less than q.
3996 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3997 used: it isn't thread safe and the add_lock_callback should handle
3999 [Paul Rose <Paul.Rose@bridge.com>]
4001 *) Verify that incoming data obeys the block size in
4002 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4006 [Ulf Möller, Bodo Möller]
4008 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4009 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4010 when fixing the server behaviour for backwards-compatible 'client
4011 hello' messages. (Note that the attack is impractical against
4012 SSL 3.0 and TLS 1.0 anyway because length and version checking
4013 means that the probability of guessing a valid ciphertext is
4014 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4017 Before 0.9.5, the countermeasure (hide the error by generating a
4018 random 'decryption result') did not work properly because
4019 ERR_clear_error() was missing, meaning that SSL_get_error() would
4020 detect the supposedly ignored error.
4022 Both problems are now fixed.
4025 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4026 (previously it was 1024).
4029 *) Fix for compatibility mode trust settings: ignore trust settings
4030 unless some valid trust or reject settings are present.
4033 *) Fix for blowfish EVP: its a variable length cipher.
4036 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4037 parameters in DSA public key structures and return an error in the
4038 DSA routines if parameters are absent.
4041 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4042 in the current directory if neither $RANDFILE nor $HOME was set.
4043 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4044 caused some confusion to Windows users who haven't defined $HOME.
4045 Thus RAND_file_name() is changed again: e_os.h can define a
4046 DEFAULT_HOME, which will be used if $HOME is not set.
4047 For Windows, we use "C:"; on other platforms, we still require
4048 environment variables.
4050 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4051 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4052 having multiple threads call RAND_poll() concurrently.
4055 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4056 combination of a flag and a thread ID variable.
4057 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4058 flag), *other* threads can enter ssleay_add_bytes without obeying
4059 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4060 that they do not hold after the first thread unsets add_do_not_lock).
4063 *) Change bctest again: '-x' expressions are not available in all
4067 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4069 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4070 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4072 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4073 the default extension for executables, if any. Also, make the perl
4074 scripts that use symlink() to test if it really exists and use "cp"
4075 if it doesn't. All this made OpenSSL compilable and installable in
4079 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4080 If SEQUENCE is length is indefinite just set c->slen to the total
4081 amount of data available.
4082 [Steve Henson, reported by shige@FreeBSD.org]
4083 [This change does not apply to 0.9.7.]
4085 *) Change bctest to avoid here-documents inside command substitution
4086 (workaround for FreeBSD /bin/sh bug).
4087 For compatibility with Ultrix, avoid shell functions (introduced
4088 in the bctest version that searches along $PATH).
4091 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4092 with des_encrypt() defined on some operating systems, like Solaris
4096 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4097 On the Importance of Eliminating Errors in Cryptographic
4098 Computations, J. Cryptology 14 (2001) 2, 101-119,
4099 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4102 *) MIPS assembler BIGNUM division bug fix.
4105 *) Disabled incorrect Alpha assembler code.
4108 *) Fix PKCS#7 decode routines so they correctly update the length
4109 after reading an EOC for the EXPLICIT tag.
4111 [This change does not apply to 0.9.7.]
4113 *) Fix bug in PKCS#12 key generation routines. This was triggered
4114 if a 3DES key was generated with a 0 initial byte. Include
4115 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4116 (but broken) behaviour.
4119 *) Enhance bctest to search for a working bc along $PATH and print
4121 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4123 *) Fix memory leaks in err.c: free err_data string if necessary;
4124 don't write to the wrong index in ERR_set_error_data.
4127 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4131 *) Replace rdtsc with _emit statements for VC++ version 5.
4132 [Jeremy Cooper <jeremy@baymoo.org>]
4134 *) Make it possible to reuse SSLv2 sessions.
4137 *) In copy_email() check for >= 0 as a return value for
4138 X509_NAME_get_index_by_NID() since 0 is a valid index.
4139 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4141 *) Avoid coredump with unsupported or invalid public keys by checking if
4142 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4143 PKCS7_verify() fails with non detached data.
4146 *) Don't use getenv in library functions when run as setuid/setgid.
4147 New function OPENSSL_issetugid().
4150 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4151 due to incorrect handling of multi-threading:
4153 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4155 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4157 3. Count how many times MemCheck_off() has been called so that
4158 nested use can be treated correctly. This also avoids
4159 inband-signalling in the previous code (which relied on the
4160 assumption that thread ID 0 is impossible).
4163 *) Add "-rand" option also to s_client and s_server.
4166 *) Fix CPU detection on Irix 6.x.
4167 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4168 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4170 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4173 [This change does not apply to 0.9.7.]
4175 *) Use the cached encoding of an X509_NAME structure rather than
4176 copying it. This is apparently the reason for the libsafe "errors"
4177 but the code is actually correct.
4180 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4181 Bleichenbacher's DSA attack.
4182 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4183 to be set and top=0 forces the highest bit to be set; top=-1 is new
4184 and leaves the highest bit random.
4185 [Ulf Moeller, Bodo Moeller]
4187 *) In the NCONF_...-based implementations for CONF_... queries
4188 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4189 a temporary CONF structure with the data component set to NULL
4190 (which gives segmentation faults in lh_retrieve).
4191 Instead, use NULL for the CONF pointer in CONF_get_string and
4192 CONF_get_number (which may use environment variables) and directly
4193 return NULL from CONF_get_section.
4196 *) Fix potential buffer overrun for EBCDIC.
4199 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4200 keyUsage if basicConstraints absent for a CA.
4203 *) Make SMIME_write_PKCS7() write mail header values with a format that
4204 is more generally accepted (no spaces before the semicolon), since
4205 some programs can't parse those values properly otherwise. Also make
4206 sure BIO's that break lines after each write do not create invalid
4210 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4211 macros previously used would not encode an empty SEQUENCE OF
4212 and break the signature.
4214 [This change does not apply to 0.9.7.]
4216 *) Zero the premaster secret after deriving the master secret in
4220 *) Add some EVP_add_digest_alias registrations (as found in
4221 OpenSSL_add_all_digests()) to SSL_library_init()
4222 aka OpenSSL_add_ssl_algorithms(). This provides improved
4223 compatibility with peers using X.509 certificates
4224 with unconventional AlgorithmIdentifier OIDs.
4227 *) Fix for Irix with NO_ASM.
4228 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4230 *) ./config script fixes.
4231 [Ulf Moeller, Richard Levitte]
4233 *) Fix 'openssl passwd -1'.
4236 *) Change PKCS12_key_gen_asc() so it can cope with non null
4237 terminated strings whose length is passed in the passlen
4238 parameter, for example from PEM callbacks. This was done
4239 by adding an extra length parameter to asc2uni().
4240 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4242 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4243 call failed, free the DSA structure.
4246 *) Fix to uni2asc() to cope with zero length Unicode strings.
4247 These are present in some PKCS#12 files.
4250 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4251 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4252 when writing a 32767 byte record.
4253 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4255 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4256 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4258 (RSA objects have a reference count access to which is protected
4259 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4260 so they are meant to be shared between threads.)
4261 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4262 "Reddie, Steven" <Steven.Reddie@ca.com>]
4264 *) Fix a deadlock in CRYPTO_mem_leaks().
4267 *) Use better test patterns in bntest.
4270 *) rand_win.c fix for Borland C.
4273 *) BN_rshift bugfix for n == 0.
4276 *) Add a 'bctest' script that checks for some known 'bc' bugs
4277 so that 'make test' does not abort just because 'bc' is broken.
4280 *) Store verify_result within SSL_SESSION also for client side to
4281 avoid potential security hole. (Re-used sessions on the client side
4282 always resulted in verify_result==X509_V_OK, not using the original
4283 result of the server certificate verification.)
4286 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4287 SSL3_RT_APPLICATION_DATA, return 0.
4288 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4292 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4293 releases, have been re-implemented by renaming the previous
4294 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4295 and ssl3_read_internal, respectively, and adding 'peek' parameters
4296 to them. The new ssl[23]_{read,peek} functions are calls to
4297 ssl[23]_read_internal with the 'peek' flag set appropriately.
4298 A 'peek' parameter has also been added to ssl3_read_bytes, which
4299 does the actual work for ssl3_read_internal.
4302 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4303 the method-specific "init()" handler. Also clean up ex_data after
4304 calling the method-specific "finish()" handler. Previously, this was
4305 happening the other way round.
4308 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4309 The previous value, 12, was not always sufficient for BN_mod_exp().
4312 *) Make sure that shared libraries get the internal name engine with
4313 the full version number and not just 0. This should mark the
4314 shared libraries as not backward compatible. Of course, this should
4315 be changed again when we can guarantee backward binary compatibility.
4318 *) Fix typo in get_cert_by_subject() in by_dir.c
4319 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4321 *) Rework the system to generate shared libraries:
4323 - Make note of the expected extension for the shared libraries and
4324 if there is a need for symbolic links from for example libcrypto.so.0
4325 to libcrypto.so.0.9.7. There is extended info in Configure for
4328 - Make as few rebuilds of the shared libraries as possible.
4330 - Still avoid linking the OpenSSL programs with the shared libraries.
4332 - When installing, install the shared libraries separately from the
4336 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4338 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4339 and not in SSL_clear because the latter is also used by the
4340 accept/connect functions; previously, the settings made by
4341 SSL_set_read_ahead would be lost during the handshake.
4342 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4344 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4345 Previously, it would create entries for disableed algorithms no
4349 *) Added several new manual pages for SSL_* function.
4352 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4354 *) In ssl23_get_client_hello, generate an error message when faced
4355 with an initial SSL 3.0/TLS record that is too small to contain the
4356 first two bytes of the ClientHello message, i.e. client_version.
4357 (Note that this is a pathologic case that probably has never happened
4358 in real life.) The previous approach was to use the version number
4359 from the record header as a substitute; but our protocol choice
4360 should not depend on that one because it is not authenticated
4361 by the Finished messages.
4364 *) More robust randomness gathering functions for Windows.
4365 [Jeffrey Altman <jaltman@columbia.edu>]
4367 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4368 not set then we don't setup the error code for issuer check errors
4369 to avoid possibly overwriting other errors which the callback does
4370 handle. If an application does set the flag then we assume it knows
4371 what it is doing and can handle the new informational codes
4375 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4376 a general "ANY" type, as such it should be able to decode anything
4377 including tagged types. However it didn't check the class so it would
4378 wrongly interpret tagged types in the same way as their universal
4379 counterpart and unknown types were just rejected. Changed so that the
4380 tagged and unknown types are handled in the same way as a SEQUENCE:
4381 that is the encoding is stored intact. There is also a new type
4382 "V_ASN1_OTHER" which is used when the class is not universal, in this
4383 case we have no idea what the actual type is so we just lump them all
4387 *) On VMS, stdout may very well lead to a file that is written to
4388 in a record-oriented fashion. That means that every write() will
4389 write a separate record, which will be read separately by the
4390 programs trying to read from it. This can be very confusing.
4392 The solution is to put a BIO filter in the way that will buffer
4393 text until a linefeed is reached, and then write everything a
4394 line at a time, so every record written will be an actual line,
4395 not chunks of lines and not (usually doesn't happen, but I've
4396 seen it once) several lines in one record. BIO_f_linebuffer() is
4399 Currently, it's a VMS-only method, because that's where it has
4400 been tested well enough.
4403 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4404 it can return incorrect results.
4405 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4406 but it was in 0.9.6-beta[12].)
4409 *) Disable the check for content being present when verifying detached
4410 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4411 include zero length content when signing messages.
4414 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4415 BIO_ctrl (for BIO pairs).
4418 *) Add DSO method for VMS.
4421 *) Bug fix: Montgomery multiplication could produce results with the
4425 *) Add RPM specification openssl.spec and modify it to build three
4426 packages. The default package contains applications, application
4427 documentation and run-time libraries. The devel package contains
4428 include files, static libraries and function documentation. The
4429 doc package contains the contents of the doc directory. The original
4430 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4433 *) Add a large number of documentation files for many SSL routines.
4434 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4436 *) Add a configuration entry for Sony News 4.
4437 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4439 *) Don't set the two most significant bits to one when generating a
4440 random number < q in the DSA library.
4443 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4444 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4445 the underlying transport is blocking) if a handshake took place.
4446 (The default behaviour is needed by applications such as s_client
4447 and s_server that use select() to determine when to use SSL_read;
4448 but for applications that know in advance when to expect data, it
4449 just makes things more complicated.)
4452 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4456 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4457 work better on such systems.
4458 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4460 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4461 Update PKCS12_parse() so it copies the friendlyName and the
4462 keyid to the certificates aux info.
4465 *) Fix bug in PKCS7_verify() which caused an infinite loop
4466 if there was more than one signature.
4467 [Sven Uszpelkat <su@celocom.de>]
4469 *) Major change in util/mkdef.pl to include extra information
4470 about each symbol, as well as presentig variables as well
4471 as functions. This change means that there's n more need
4472 to rebuild the .num files when some algorithms are excluded.
4475 *) Allow the verify time to be set by an application,
4476 rather than always using the current time.
4479 *) Phase 2 verify code reorganisation. The certificate
4480 verify code now looks up an issuer certificate by a
4481 number of criteria: subject name, authority key id
4482 and key usage. It also verifies self signed certificates
4483 by the same criteria. The main comparison function is
4484 X509_check_issued() which performs these checks.
4486 Lot of changes were necessary in order to support this
4487 without completely rewriting the lookup code.
4489 Authority and subject key identifier are now cached.
4491 The LHASH 'certs' is X509_STORE has now been replaced
4492 by a STACK_OF(X509_OBJECT). This is mainly because an
4493 LHASH can't store or retrieve multiple objects with
4494 the same hash value.
4496 As a result various functions (which were all internal
4497 use only) have changed to handle the new X509_STORE
4498 structure. This will break anything that messed round
4499 with X509_STORE internally.
4501 The functions X509_STORE_add_cert() now checks for an
4502 exact match, rather than just subject name.
4504 The X509_STORE API doesn't directly support the retrieval
4505 of multiple certificates matching a given criteria, however
4506 this can be worked round by performing a lookup first
4507 (which will fill the cache with candidate certificates)
4508 and then examining the cache for matches. This is probably
4509 the best we can do without throwing out X509_LOOKUP
4510 entirely (maybe later...).
4512 The X509_VERIFY_CTX structure has been enhanced considerably.
4514 All certificate lookup operations now go via a get_issuer()
4515 callback. Although this currently uses an X509_STORE it
4516 can be replaced by custom lookups. This is a simple way
4517 to bypass the X509_STORE hackery necessary to make this
4518 work and makes it possible to use more efficient techniques
4519 in future. A very simple version which uses a simple
4520 STACK for its trusted certificate store is also provided
4521 using X509_STORE_CTX_trusted_stack().
4523 The verify_cb() and verify() callbacks now have equivalents
4524 in the X509_STORE_CTX structure.
4526 X509_STORE_CTX also has a 'flags' field which can be used
4527 to customise the verify behaviour.
4530 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4531 excludes S/MIME capabilities.
4534 *) When a certificate request is read in keep a copy of the
4535 original encoding of the signed data and use it when outputing
4536 again. Signatures then use the original encoding rather than
4537 a decoded, encoded version which may cause problems if the
4538 request is improperly encoded.
4541 *) For consistency with other BIO_puts implementations, call
4542 buffer_write(b, ...) directly in buffer_puts instead of calling
4545 In BIO_puts, increment b->num_write as in BIO_write.
4546 [Peter.Sylvester@EdelWeb.fr]
4548 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4549 BN_zero, we may not return a BIGNUM with an array consisting of
4553 *) Avoid calling abort() from within the library when problems are
4554 detected, except if preprocessor symbols have been defined
4555 (such as REF_CHECK, BN_DEBUG etc.).
4558 *) New openssl application 'rsautl'. This utility can be
4559 used for low level RSA operations. DER public key
4560 BIO/fp routines also added.
4563 *) New Configure entry and patches for compiling on QNX 4.
4564 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4566 *) A demo state-machine implementation was sponsored by
4567 Nuron (http://www.nuron.com/) and is now available in
4568 demos/state_machine.
4571 *) New options added to the 'dgst' utility for signature
4572 generation and verification.
4575 *) Unrecognized PKCS#7 content types are now handled via a
4576 catch all ASN1_TYPE structure. This allows unsupported
4577 types to be stored as a "blob" and an application can
4578 encode and decode it manually.
4581 *) Fix various signed/unsigned issues to make a_strex.c
4583 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4585 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4586 length if passed a buffer. ASN1_INTEGER_to_BN failed
4587 if passed a NULL BN and its argument was negative.
4588 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4590 *) Modification to PKCS#7 encoding routines to output definite
4591 length encoding. Since currently the whole structures are in
4592 memory there's not real point in using indefinite length
4593 constructed encoding. However if OpenSSL is compiled with
4594 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4597 *) Added BIO_vprintf() and BIO_vsnprintf().
4600 *) Added more prefixes to parse for in the the strings written
4601 through a logging bio, to cover all the levels that are available
4602 through syslog. The prefixes are now:
4604 PANIC, EMERG, EMR => LOG_EMERG
4605 ALERT, ALR => LOG_ALERT
4606 CRIT, CRI => LOG_CRIT
4607 ERROR, ERR => LOG_ERR
4608 WARNING, WARN, WAR => LOG_WARNING
4609 NOTICE, NOTE, NOT => LOG_NOTICE
4610 INFO, INF => LOG_INFO
4611 DEBUG, DBG => LOG_DEBUG
4613 and as before, if none of those prefixes are present at the
4614 beginning of the string, LOG_ERR is chosen.
4616 On Win32, the LOG_* levels are mapped according to this:
4618 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4619 LOG_WARNING => EVENTLOG_WARNING_TYPE
4620 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4624 *) Made it possible to reconfigure with just the configuration
4625 argument "reconf" or "reconfigure". The command line arguments
4626 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4627 and are retrieved from there when reconfiguring.
4631 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4633 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4636 *) The obj_dat.pl script was messing up the sorting of object
4637 names. The reason was that it compared the quoted version
4638 of strings as a result "OCSP" > "OCSP Signing" because
4639 " > SPACE. Changed script to store unquoted versions of
4640 names and add quotes on output. It was also omitting some
4641 names from the lookup table if they were given a default
4642 value (that is if SN is missing it is given the same
4643 value as LN and vice versa), these are now added on the
4644 grounds that if an object has a name we should be able to
4645 look it up. Finally added warning output when duplicate
4646 short or long names are found.
4649 *) Changes needed for Tandem NSK.
4650 [Scott Uroff <scott@xypro.com>]
4652 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4653 RSA_padding_check_SSLv23(), special padding was never detected
4654 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4655 version rollback attacks was not effective.
4657 In s23_clnt.c, don't use special rollback-attack detection padding
4658 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4659 client; similarly, in s23_srvr.c, don't do the rollback check if
4660 SSL 2.0 is the only protocol enabled in the server.
4663 *) Make it possible to get hexdumps of unprintable data with 'openssl
4664 asn1parse'. By implication, the functions ASN1_parse_dump() and
4665 BIO_dump_indent() are added.
4668 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4669 these print out strings and name structures based on various
4670 flags including RFC2253 support and proper handling of
4671 multibyte characters. Added options to the 'x509' utility
4672 to allow the various flags to be set.
4675 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4676 Also change the functions X509_cmp_current_time() and
4677 X509_gmtime_adj() work with an ASN1_TIME structure,
4678 this will enable certificates using GeneralizedTime in validity
4679 dates to be checked.
4682 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4683 negative public key encodings) on by default,
4684 NO_NEG_PUBKEY_BUG can be set to disable it.
4687 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4688 content octets. An i2c_ASN1_OBJECT is unnecessary because
4689 the encoding can be trivially obtained from the structure.
4692 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4693 not read locks (CRYPTO_r_[un]lock).
4696 *) A first attempt at creating official support for shared
4697 libraries through configuration. I've kept it so the
4698 default is static libraries only, and the OpenSSL programs
4699 are always statically linked for now, but there are
4700 preparations for dynamic linking in place.
4701 This has been tested on Linux and Tru64.
4704 *) Randomness polling function for Win9x, as described in:
4705 Peter Gutmann, Software Generation of Practically Strong
4709 *) Fix so PRNG is seeded in req if using an already existing
4713 *) New options to smime application. -inform and -outform
4714 allow alternative formats for the S/MIME message including
4715 PEM and DER. The -content option allows the content to be
4716 specified separately. This should allow things like Netscape
4717 form signing output easier to verify.
4720 *) Fix the ASN1 encoding of tags using the 'long form'.
4723 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4724 STRING types. These convert content octets to and from the
4725 underlying type. The actual tag and length octets are
4726 already assumed to have been read in and checked. These
4727 are needed because all other string types have virtually
4728 identical handling apart from the tag. By having versions
4729 of the ASN1 functions that just operate on content octets
4730 IMPLICIT tagging can be handled properly. It also allows
4731 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4732 and ASN1_INTEGER are identical apart from the tag.
4735 *) Change the handling of OID objects as follows:
4737 - New object identifiers are inserted in objects.txt, following
4738 the syntax given in objects.README.
4739 - objects.pl is used to process obj_mac.num and create a new
4741 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4744 This is currently kind of a hack, and the perl code in objects.pl
4745 isn't very elegant, but it works as I intended. The simplest way
4746 to check that it worked correctly is to look in obj_dat.h and
4747 check the array nid_objs and make sure the objects haven't moved
4748 around (this is important!). Additions are OK, as well as
4749 consistent name changes.
4752 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4755 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4756 The given file adds to whatever has already been seeded into the
4757 random pool through the RANDFILE configuration file option or
4758 environment variable, or the default random state file.
4761 *) mkstack.pl now sorts each macro group into lexical order.
4762 Previously the output order depended on the order the files
4763 appeared in the directory, resulting in needless rewriting
4767 *) Patches to make OpenSSL compile under Win32 again. Mostly
4768 work arounds for the VC++ problem that it treats func() as
4769 func(void). Also stripped out the parts of mkdef.pl that
4770 added extra typesafe functions: these no longer exist.
4773 *) Reorganisation of the stack code. The macros are now all
4774 collected in safestack.h . Each macro is defined in terms of
4775 a "stack macro" of the form SKM_<name>(type, a, b). The
4776 DEBUG_SAFESTACK is now handled in terms of function casts,
4777 this has the advantage of retaining type safety without the
4778 use of additional functions. If DEBUG_SAFESTACK is not defined
4779 then the non typesafe macros are used instead. Also modified the
4780 mkstack.pl script to handle the new form. Needs testing to see
4781 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4782 the default if no major problems. Similar behaviour for ASN1_SET_OF
4783 and PKCS12_STACK_OF.
4786 *) When some versions of IIS use the 'NET' form of private key the
4787 key derivation algorithm is different. Normally MD5(password) is
4788 used as a 128 bit RC4 key. In the modified case
4789 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4790 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4791 as the old Netscape_RSA functions except they have an additional
4792 'sgckey' parameter which uses the modified algorithm. Also added
4793 an -sgckey command line option to the rsa utility. Thanks to
4794 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4795 algorithm to openssl-dev.
4798 *) The evp_local.h macros were using 'c.##kname' which resulted in
4799 invalid expansion on some systems (SCO 5.0.5 for example).
4800 Corrected to 'c.kname'.
4801 [Phillip Porch <root@theporch.com>]
4803 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4804 a STACK of email addresses from a certificate or request, these look
4805 in the subject name and the subject alternative name extensions and
4806 omit any duplicate addresses.
4809 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4810 This makes DSA verification about 2 % faster.
4813 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4814 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4815 plus overhead for 1024 bit moduli).
4816 This makes exponentiations about 0.5 % faster for 1024 bit
4817 exponents (as measured by "openssl speed rsa2048").
4820 *) Rename memory handling macros to avoid conflicts with other
4822 Malloc => OPENSSL_malloc
4823 Malloc_locked => OPENSSL_malloc_locked
4824 Realloc => OPENSSL_realloc
4825 Free => OPENSSL_free
4828 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4829 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4832 *) CygWin32 support.
4833 [John Jarvie <jjarvie@newsguy.com>]
4835 *) The type-safe stack code has been rejigged. It is now only compiled
4836 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4837 by default all type-specific stack functions are "#define"d back to
4838 standard stack functions. This results in more streamlined output
4839 but retains the type-safety checking possibilities of the original
4843 *) The STACK code has been cleaned up, and certain type declarations
4844 that didn't make a lot of sense have been brought in line. This has
4845 also involved a cleanup of sorts in safestack.h to more correctly
4846 map type-safe stack functions onto their plain stack counterparts.
4847 This work has also resulted in a variety of "const"ifications of
4848 lots of the code, especially "_cmp" operations which should normally
4849 be prototyped with "const" parameters anyway.
4852 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4853 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4854 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4855 where all of 'md' is used each time the PRNG is used, but 'state'
4856 is used only indexed by a cyclic counter. As entropy may not be
4857 well distributed from the beginning, 'md' is important as a
4858 chaining variable. However, the output function chains only half
4859 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4860 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4861 in all of 'state' being rewritten, with the new values depending
4862 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4865 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4866 the handshake is continued after ssl_verify_cert_chain();
4867 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4868 can lead to 'unexplainable' connection aborts later.
4869 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4871 *) Major EVP API cipher revision.
4872 Add hooks for extra EVP features. This allows various cipher
4873 parameters to be set in the EVP interface. Support added for variable
4874 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4875 setting of RC2 and RC5 parameters.
4877 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4880 Remove lots of duplicated code from the EVP library. For example *every*
4881 cipher init() function handles the 'iv' in the same way according to the
4882 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4883 for CFB and OFB modes they zero ctx->num.
4885 New functionality allows removal of S/MIME code RC2 hack.
4887 Most of the routines have the same form and so can be declared in terms
4890 By shifting this to the top level EVP_CipherInit() it can be removed from
4891 all individual ciphers. If the cipher wants to handle IVs or keys
4892 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4895 Change lots of functions like EVP_EncryptUpdate() to now return a
4896 value: although software versions of the algorithms cannot fail
4897 any installed hardware versions can.
4900 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4901 this option is set, tolerate broken clients that send the negotiated
4902 protocol version number instead of the requested protocol version
4906 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4907 i.e. non-zero for export ciphersuites, zero otherwise.
4908 Previous versions had this flag inverted, inconsistent with
4909 rsa_tmp_cb (..._TMP_RSA_CB).
4910 [Bodo Moeller; problem reported by Amit Chopra]
4912 *) Add missing DSA library text string. Work around for some IIS
4913 key files with invalid SEQUENCE encoding.
4916 *) Add a document (doc/standards.txt) that list all kinds of standards
4917 and so on that are implemented in OpenSSL.
4920 *) Enhance c_rehash script. Old version would mishandle certificates
4921 with the same subject name hash and wouldn't handle CRLs at all.
4922 Added -fingerprint option to crl utility, to support new c_rehash
4926 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4929 *) Fix for SSL server purpose checking. Server checking was
4930 rejecting certificates which had extended key usage present
4931 but no ssl client purpose.
4932 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4934 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4935 is a little unclear about how a blank password is handled.
4936 Since the password in encoded as a BMPString with terminating
4937 double NULL a zero length password would end up as just the
4938 double NULL. However no password at all is different and is
4939 handled differently in the PKCS#12 key generation code. NS
4940 treats a blank password as zero length. MSIE treats it as no
4941 password on export: but it will try both on import. We now do
4942 the same: PKCS12_parse() tries zero length and no password if
4943 the password is set to "" or NULL (NULL is now a valid password:
4944 it wasn't before) as does the pkcs12 application.
4947 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4948 perror when PEM_read_bio_X509_REQ fails, the error message must
4949 be obtained from the error queue.
4952 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4953 it in ERR_remove_state if appropriate, and change ERR_get_state
4954 accordingly to avoid race conditions (this is necessary because
4955 thread_hash is no longer constant once set).
4958 *) Bugfix for linux-elf makefile.one.
4961 *) RSA_get_default_method() will now cause a default
4962 RSA_METHOD to be chosen if one doesn't exist already.
4963 Previously this was only set during a call to RSA_new()
4964 or RSA_new_method(NULL) meaning it was possible for
4965 RSA_get_default_method() to return NULL.
4968 *) Added native name translation to the existing DSO code
4969 that will convert (if the flag to do so is set) filenames
4970 that are sufficiently small and have no path information
4971 into a canonical native form. Eg. "blah" converted to
4972 "libblah.so" or "blah.dll" etc.
4975 *) New function ERR_error_string_n(e, buf, len) which is like
4976 ERR_error_string(e, buf), but writes at most 'len' bytes
4977 including the 0 terminator. For ERR_error_string_n, 'buf'
4979 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4981 *) CONF library reworked to become more general. A new CONF
4982 configuration file reader "class" is implemented as well as a
4983 new functions (NCONF_*, for "New CONF") to handle it. The now
4984 old CONF_* functions are still there, but are reimplemented to
4985 work in terms of the new functions. Also, a set of functions
4986 to handle the internal storage of the configuration data is
4987 provided to make it easier to write new configuration file
4988 reader "classes" (I can definitely see something reading a
4989 configuration file in XML format, for example), called _CONF_*,
4990 or "the configuration storage API"...
4992 The new configuration file reading functions are:
4994 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4995 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4997 NCONF_default, NCONF_WIN32
4999 NCONF_dump_fp, NCONF_dump_bio
5001 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5002 NCONF_new creates a new CONF object. This works in the same way
5003 as other interfaces in OpenSSL, like the BIO interface.
5004 NCONF_dump_* dump the internal storage of the configuration file,
5005 which is useful for debugging. All other functions take the same
5006 arguments as the old CONF_* functions wth the exception of the
5007 first that must be a `CONF *' instead of a `LHASH *'.
5009 To make it easer to use the new classes with the old CONF_* functions,
5010 the function CONF_set_default_method is provided.
5013 *) Add '-tls1' option to 'openssl ciphers', which was already
5014 mentioned in the documentation but had not been implemented.
5015 (This option is not yet really useful because even the additional
5016 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5019 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5020 OpenSSL-based applications) load shared libraries and bind to
5021 them in a portable way.
5022 [Geoff Thorpe, with contributions from Richard Levitte]
5024 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5026 *) Make sure _lrotl and _lrotr are only used with MSVC.
5028 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5029 (the default implementation of RAND_status).
5031 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5032 to '-clrext' (= clear extensions), as intended and documented.
5033 [Bodo Moeller; inconsistency pointed out by Michael Attili
5036 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5037 was larger than the MD block size.
5038 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5040 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5041 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5042 using the passed key: if the passed key was a private key the result
5043 of X509_print(), for example, would be to print out all the private key
5047 *) des_quad_cksum() byte order bug fix.
5048 [Ulf Möller, using the problem description in krb4-0.9.7, where
5049 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5051 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5053 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5055 *) For easily testing in shell scripts whether some command
5056 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5057 returns with exit code 0 iff no command of the given name is available.
5058 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5059 the output goes to stdout and nothing is printed to stderr.
5060 Additional arguments are always ignored.
5062 Since for each cipher there is a command of the same name,
5063 the 'no-cipher' compilation switches can be tested this way.
5065 ('openssl no-XXX' is not able to detect pseudo-commands such
5066 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5069 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5072 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5073 is set; it will be thrown away anyway because each handshake creates
5075 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5076 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5077 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5078 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5081 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5082 'Q' and 'R' lose their special meanings (quit/renegotiate).
5083 This is part of what -quiet does; unlike -quiet, -ign_eof
5084 does not suppress any output.
5087 *) Add compatibility options to the purpose and trust code. The
5088 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5089 accepts a certificate or CA, this was the previous behaviour,
5090 with all the associated security issues.
5092 X509_TRUST_COMPAT is the old trust behaviour: only and
5093 automatically trust self signed roots in certificate store. A
5094 new trust setting X509_TRUST_DEFAULT is used to specify that
5095 a purpose has no associated trust setting and it should instead
5096 use the value in the default purpose.
5099 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5100 and fix a memory leak.
5103 *) In util/mkerr.pl (which implements 'make errors'), preserve
5104 reason strings from the previous version of the .c file, as
5105 the default to have only downcase letters (and digits) in
5106 automatically generated reasons codes is not always appropriate.
5109 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5110 using strerror. Previously, ERR_reason_error_string() returned
5111 library names as reason strings for SYSerr; but SYSerr is a special
5112 case where small numbers are errno values, not library numbers.
5115 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5116 converts DSA parameters into DH parameters. (When creating parameters,
5117 DSA_generate_parameters is used.)
5120 *) Include 'length' (recommended exponent length) in C code generated
5121 by 'openssl dhparam -C'.
5124 *) The second argument to set_label in perlasm was already being used
5125 so couldn't be used as a "file scope" flag. Moved to third argument
5129 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5130 instead of RAND_bytes for encryption IVs and salts.
5133 *) Include RAND_status() into RAND_METHOD instead of implementing
5134 it only for md_rand.c Otherwise replacing the PRNG by calling
5135 RAND_set_rand_method would be impossible.
5138 *) Don't let DSA_generate_key() enter an infinite loop if the random
5139 number generation fails.
5142 *) New 'rand' application for creating pseudo-random output.
5145 *) Added configuration support for Linux/IA64
5146 [Rolf Haberrecker <rolf@suse.de>]
5148 *) Assembler module support for Mingw32.
5151 *) Shared library support for HPUX (in shlib/).
5152 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5154 *) Shared library support for Solaris gcc.
5155 [Lutz Behnke <behnke@trustcenter.de>]
5157 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5159 *) PKCS7_encrypt() was adding text MIME headers twice because they
5160 were added manually and by SMIME_crlf_copy().
5163 *) In bntest.c don't call BN_rand with zero bits argument.
5164 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5166 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5167 case was implemented. This caused BN_div_recp() to fail occasionally.
5170 *) Add an optional second argument to the set_label() in the perl
5171 assembly language builder. If this argument exists and is set
5172 to 1 it signals that the assembler should use a symbol whose
5173 scope is the entire file, not just the current function. This
5174 is needed with MASM which uses the format label:: for this scope.
5175 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5177 *) Change the ASN1 types so they are typedefs by default. Before
5178 almost all types were #define'd to ASN1_STRING which was causing
5179 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5183 *) Change names of new functions to the new get1/get0 naming
5184 convention: After 'get1', the caller owns a reference count
5185 and has to call ..._free; 'get0' returns a pointer to some
5186 data structure without incrementing reference counters.
5187 (Some of the existing 'get' functions increment a reference
5188 counter, some don't.)
5189 Similarly, 'set1' and 'add1' functions increase reference
5190 counters or duplicate objects.
5193 *) Allow for the possibility of temp RSA key generation failure:
5194 the code used to assume it always worked and crashed on failure.
5197 *) Fix potential buffer overrun problem in BIO_printf().
5198 [Ulf Möller, using public domain code by Patrick Powell; problem
5199 pointed out by David Sacerdote <das33@cornell.edu>]
5201 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5202 RAND_egd() and RAND_status(). In the command line application,
5203 the EGD socket can be specified like a seed file using RANDFILE
5207 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5208 Some CAs (e.g. Verisign) distribute certificates in this form.
5211 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5212 list to exclude them. This means that no special compilation option
5213 is needed to use anonymous DH: it just needs to be included in the
5217 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5218 EVP_MD_type. The old functionality is available in a new macro called
5219 EVP_MD_md(). Change code that uses it and update docs.
5222 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5223 where the 'void *' argument is replaced by a function pointer argument.
5224 Previously 'void *' was abused to point to functions, which works on
5225 many platforms, but is not correct. As these functions are usually
5226 called by macros defined in OpenSSL header files, most source code
5227 should work without changes.
5230 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5231 sections with information on -D... compiler switches used for
5232 compiling the library so that applications can see them. To enable
5233 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5234 must be defined. E.g.,
5235 #define OPENSSL_ALGORITHM_DEFINES
5236 #include <openssl/opensslconf.h>
5237 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5238 [Richard Levitte, Ulf and Bodo Möller]
5240 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5244 *) Change the 'other' type in certificate aux info to a STACK_OF
5245 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5246 the required ASN1 format: arbitrary types determined by an OID.
5249 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5250 argument to 'req'. This is not because the function is newer or
5251 better than others it just uses the work 'NEW' in the certificate
5252 request header lines. Some software needs this.
5255 *) Reorganise password command line arguments: now passwords can be
5256 obtained from various sources. Delete the PEM_cb function and make
5257 it the default behaviour: i.e. if the callback is NULL and the
5258 usrdata argument is not NULL interpret it as a null terminated pass
5259 phrase. If usrdata and the callback are NULL then the pass phrase
5260 is prompted for as usual.
5263 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5264 the support is automatically enabled. The resulting binaries will
5265 autodetect the card and use it if present.
5266 [Ben Laurie and Compaq Inc.]
5268 *) Work around for Netscape hang bug. This sends certificate request
5269 and server done in one record. Since this is perfectly legal in the
5270 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5271 the bugs/SSLv3 entry for more info.
5274 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5277 *) Add -rand argument to smime and pkcs12 applications and read/write
5281 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5284 *) Add command line password options to the remaining applications.
5287 *) Bug fix for BN_div_recp() for numerators with an even number of
5291 *) More tests in bntest.c, and changed test_bn output.
5294 *) ./config recognizes MacOS X now.
5297 *) Bug fix for BN_div() when the first words of num and divsor are
5298 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5301 *) Add support for various broken PKCS#8 formats, and command line
5302 options to produce them.
5305 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5306 get temporary BIGNUMs from a BN_CTX.
5309 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5313 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5314 include a #define from the old name to the new. The original intent
5315 was that statically linked binaries could for example just call
5316 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5317 link with digests. This never worked becayse SSLeay_add_all_digests()
5318 and SSLeay_add_all_ciphers() were in the same source file so calling
5319 one would link with the other. They are now in separate source files.
5322 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5325 *) Use a less unusual form of the Miller-Rabin primality test (it used
5326 a binary algorithm for exponentiation integrated into the Miller-Rabin
5327 loop, our standard modexp algorithms are faster).
5330 *) Support for the EBCDIC character set completed.
5331 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5333 *) Source code cleanups: use const where appropriate, eliminate casts,
5334 use void * instead of char * in lhash.
5337 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5338 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5339 this the server could overwrite ephemeral keys that the client
5343 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5344 using 50 iterations of the Rabin-Miller test.
5346 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5347 iterations of the Rabin-Miller test as required by the appendix
5348 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5349 As BN_is_prime_fasttest includes trial division, DSA parameter
5350 generation becomes much faster.
5352 This implies a change for the callback functions in DSA_is_prime
5353 and DSA_generate_parameters: The callback function is called once
5354 for each positive witness in the Rabin-Miller test, not just
5355 occasionally in the inner loop; and the parameters to the
5356 callback function now provide an iteration count for the outer
5357 loop rather than for the current invocation of the inner loop.
5358 DSA_generate_parameters additionally can call the callback
5359 function with an 'iteration count' of -1, meaning that a
5360 candidate has passed the trial division test (when q is generated
5361 from an application-provided seed, trial division is skipped).
5364 *) New function BN_is_prime_fasttest that optionally does trial
5365 division before starting the Rabin-Miller test and has
5366 an additional BN_CTX * argument (whereas BN_is_prime always
5367 has to allocate at least one BN_CTX).
5368 'callback(1, -1, cb_arg)' is called when a number has passed the
5369 trial division stage.
5372 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5376 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5379 *) New function BN_pseudo_rand().
5382 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5383 bignum version of BN_from_montgomery() with the working code from
5384 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5388 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5389 made it impossible to use the same SSL_SESSION data structure in
5390 SSL2 clients in multiple threads.
5393 *) The return value of RAND_load_file() no longer counts bytes obtained
5394 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5395 to seed the PRNG (previously an explicit byte count was required).
5396 [Ulf Möller, Bodo Möller]
5398 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5399 used (char *) instead of (void *) and had casts all over the place.
5402 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5405 *) Retain source code compatibility for BN_prime_checks macro:
5406 BN_is_prime(..., BN_prime_checks, ...) now uses
5407 BN_prime_checks_for_size to determine the appropriate number of
5408 Rabin-Miller iterations.
5411 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5412 DH_CHECK_P_NOT_SAFE_PRIME.
5413 (Check if this is true? OpenPGP calls them "strong".)
5416 *) Merge the functionality of "dh" and "gendh" programs into a new program
5417 "dhparam". The old programs are retained for now but will handle DH keys
5418 (instead of parameters) in future.
5421 *) Make the ciphers, s_server and s_client programs check the return values
5422 when a new cipher list is set.
5425 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5426 ciphers. Before when the 56bit ciphers were enabled the sorting was
5429 The syntax for the cipher sorting has been extended to support sorting by
5430 cipher-strength (using the strength_bits hard coded in the tables).
5431 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5433 Fix a bug in the cipher-command parser: when supplying a cipher command
5434 string with an "undefined" symbol (neither command nor alphanumeric
5435 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5436 an error is flagged.
5438 Due to the strength-sorting extension, the code of the
5439 ssl_create_cipher_list() function was completely rearranged. I hope that
5440 the readability was also increased :-)
5441 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5443 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5444 for the first serial number and places 2 in the serial number file. This
5445 avoids problems when the root CA is created with serial number zero and
5446 the first user certificate has the same issuer name and serial number
5450 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5451 the new code. Add documentation for this stuff.
5454 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5455 X509_*() to X509at_*() on the grounds that they don't handle X509
5456 structures and behave in an analagous way to the X509v3 functions:
5457 they shouldn't be called directly but wrapper functions should be used
5460 So we also now have some wrapper functions that call the X509at functions
5461 when passed certificate requests. (TO DO: similar things can be done with
5462 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5463 things. Some of these need some d2i or i2d and print functionality
5464 because they handle more complex structures.)
5467 *) Add missing #ifndefs that caused missing symbols when building libssl
5468 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5469 NO_RSA in ssl/s2*.c.
5470 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5472 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5473 has a return value which indicates the quality of the random data
5474 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5475 error queue. New function RAND_pseudo_bytes() generates output that is
5476 guaranteed to be unique but not unpredictable. RAND_add is like
5477 RAND_seed, but takes an extra argument for an entropy estimate
5478 (RAND_seed always assumes full entropy).
5481 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5482 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5483 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5484 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5485 false-positive rate of at most 2^-80 for random input.
5488 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5491 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5492 in the 0.9.5 release), this returns the chain
5493 from an X509_CTX structure with a dup of the stack and all
5494 the X509 reference counts upped: so the stack will exist
5495 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5498 Also make SSL_SESSION_print() print out the verify return
5502 *) Add manpage for the pkcs12 command. Also change the default
5503 behaviour so MAC iteration counts are used unless the new
5504 -nomaciter option is used. This improves file security and
5505 only older versions of MSIE (4.0 for example) need it.
5508 *) Honor the no-xxx Configure options when creating .DEF files.
5511 *) Add PKCS#10 attributes to field table: challengePassword,
5512 unstructuredName and unstructuredAddress. These are taken from
5513 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5514 international characters are used.
5516 More changes to X509_ATTRIBUTE code: allow the setting of types
5517 based on strings. Remove the 'loc' parameter when adding
5518 attributes because these will be a SET OF encoding which is sorted
5522 *) Initial changes to the 'req' utility to allow request generation
5523 automation. This will allow an application to just generate a template
5524 file containing all the field values and have req construct the
5527 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5528 used all over the place including certificate requests and PKCS#7
5529 structures. They are currently handled manually where necessary with
5530 some primitive wrappers for PKCS#7. The new functions behave in a
5531 manner analogous to the X509 extension functions: they allow
5532 attributes to be looked up by NID and added.
5534 Later something similar to the X509V3 code would be desirable to
5535 automatically handle the encoding, decoding and printing of the
5536 more complex types. The string types like challengePassword can
5537 be handled by the string table functions.
5539 Also modified the multi byte string table handling. Now there is
5540 a 'global mask' which masks out certain types. The table itself
5541 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5542 is useful when for example there is only one permissible type
5543 (as in countryName) and using the mask might result in no valid
5547 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5548 SSL_get_peer_finished to allow applications to obtain the latest
5549 Finished messages sent to the peer or expected from the peer,
5550 respectively. (SSL_get_peer_finished is usually the Finished message
5551 actually received from the peer, otherwise the protocol will be aborted.)
5553 As the Finished message are message digests of the complete handshake
5554 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5555 be used for external authentication procedures when the authentication
5556 provided by SSL/TLS is not desired or is not enough.
5559 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5560 the host supports BWX extension and if Compaq C is present on the
5561 $PATH. Just exploiting of the BWX extension results in 20-30%
5562 performance kick for some algorithms, e.g. DES and RC4 to mention
5563 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5567 *) Add support for MS "fast SGC". This is arguably a violation of the
5568 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5569 weak crypto and after checking the certificate is SGC a second one
5570 with strong crypto. MS SGC stops the first handshake after receiving
5571 the server certificate message and sends a second client hello. Since
5572 a server will typically do all the time consuming operations before
5573 expecting any further messages from the client (server key exchange
5574 is the most expensive) there is little difference between the two.
5576 To get OpenSSL to support MS SGC we have to permit a second client
5577 hello message after we have sent server done. In addition we have to
5578 reset the MAC if we do get this second client hello.
5581 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5582 if a DER encoded private key is RSA or DSA traditional format. Changed
5583 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5584 format DER encoded private key. Newer code should use PKCS#8 format which
5585 has the key type encoded in the ASN1 structure. Added DER private key
5586 support to pkcs8 application.
5589 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5590 ciphersuites has been selected (as required by the SSL 3/TLS 1
5591 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5592 is set, we interpret this as a request to violate the specification
5593 (the worst that can happen is a handshake failure, and 'correct'
5594 behaviour would result in a handshake failure anyway).
5597 *) In SSL_CTX_add_session, take into account that there might be multiple
5598 SSL_SESSION structures with the same session ID (e.g. when two threads
5599 concurrently obtain them from an external cache).
5600 The internal cache can handle only one SSL_SESSION with a given ID,
5601 so if there's a conflict, we now throw out the old one to achieve
5605 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5606 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5607 some routines that use cipher OIDs: some ciphers do not have OIDs
5608 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5612 *) Simplify the trust setting structure and code. Now we just have
5613 two sequences of OIDs for trusted and rejected settings. These will
5614 typically have values the same as the extended key usage extension
5615 and any application specific purposes.
5617 The trust checking code now has a default behaviour: it will just
5618 check for an object with the same NID as the passed id. Functions can
5619 be provided to override either the default behaviour or the behaviour
5620 for a given id. SSL client, server and email already have functions
5621 in place for compatibility: they check the NID and also return "trusted"
5622 if the certificate is self signed.
5625 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5626 traditional format into an EVP_PKEY structure.
5629 *) Add a password callback function PEM_cb() which either prompts for
5630 a password if usr_data is NULL or otherwise assumes it is a null
5631 terminated password. Allow passwords to be passed on command line
5632 environment or config files in a few more utilities.
5635 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5636 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5637 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5638 Update documentation.
5641 *) Support for ASN1 "NULL" type. This could be handled before by using
5642 ASN1_TYPE but there wasn't any function that would try to read a NULL
5643 and produce an error if it couldn't. For compatibility we also have
5644 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5645 don't allocate anything because they don't need to.
5648 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5650 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5652 *) Rebuild of the memory allocation routines used by OpenSSL code and
5653 possibly others as well. The purpose is to make an interface that
5654 provide hooks so anyone can build a separate set of allocation and
5655 deallocation routines to be used by OpenSSL, for example memory
5656 pool implementations, or something else, which was previously hard
5657 since Malloc(), Realloc() and Free() were defined as macros having
5658 the values malloc, realloc and free, respectively (except for Win32
5659 compilations). The same is provided for memory debugging code.
5660 OpenSSL already comes with functionality to find memory leaks, but
5661 this gives people a chance to debug other memory problems.
5663 With these changes, a new set of functions and macros have appeared:
5665 CRYPTO_set_mem_debug_functions() [F]
5666 CRYPTO_get_mem_debug_functions() [F]
5667 CRYPTO_dbg_set_options() [F]
5668 CRYPTO_dbg_get_options() [F]
5669 CRYPTO_malloc_debug_init() [M]
5671 The memory debug functions are NULL by default, unless the library
5672 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5673 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5674 gives the standard debugging functions that come with OpenSSL) or
5675 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5676 provided by the library user) must be used. When the standard
5677 debugging functions are used, CRYPTO_dbg_set_options can be used to
5678 request additional information:
5679 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5680 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5682 Also, things like CRYPTO_set_mem_functions will always give the
5683 expected result (the new set of functions is used for allocation
5684 and deallocation) at all times, regardless of platform and compiler
5687 To finish it up, some functions that were never use in any other
5688 way than through macros have a new API and new semantic:
5691 CRYPTO_dbg_realloc()
5694 All macros of value have retained their old syntax.
5695 [Richard Levitte and Bodo Moeller]
5697 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5698 ordering of SMIMECapabilities wasn't in "strength order" and there
5699 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5703 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5704 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5705 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5707 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5708 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5709 functionality to handle multipart/signed properly) and a utility
5710 called 'smime' to call all this stuff. This is based on code I
5711 originally wrote for Celo who have kindly allowed it to be
5712 included in OpenSSL.
5715 *) Add variants des_set_key_checked and des_set_key_unchecked of
5716 des_set_key (aka des_key_sched). Global variable des_check_key
5717 decides which of these is called by des_set_key; this way
5718 des_check_key behaves as it always did, but applications and
5719 the library itself, which was buggy for des_check_key == 1,
5720 have a cleaner way to pick the version they need.
5723 *) New function PKCS12_newpass() which changes the password of a
5727 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5728 dynamic mix. In both cases the ids can be used as an index into the
5729 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5730 functions so they accept a list of the field values and the
5731 application doesn't need to directly manipulate the X509_TRUST
5735 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5739 *) Modify the way the V3 extension code looks up extensions. This now
5740 works in a similar way to the object code: we have some "standard"
5741 extensions in a static table which is searched with OBJ_bsearch()
5742 and the application can add dynamic ones if needed. The file
5743 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5744 updated whenever a new extension is added to the core code and kept
5745 in ext_nid order. There is a simple program 'tabtest.c' which checks
5746 this. New extensions are not added too often so this file can readily
5747 be maintained manually.
5749 There are two big advantages in doing things this way. The extensions
5750 can be looked up immediately and no longer need to be "added" using
5751 X509V3_add_standard_extensions(): this function now does nothing.
5752 [Side note: I get *lots* of email saying the extension code doesn't
5753 work because people forget to call this function]
5754 Also no dynamic allocation is done unless new extensions are added:
5755 so if we don't add custom extensions there is no need to call
5756 X509V3_EXT_cleanup().
5759 *) Modify enc utility's salting as follows: make salting the default. Add a
5760 magic header, so unsalted files fail gracefully instead of just decrypting
5761 to garbage. This is because not salting is a big security hole, so people
5762 should be discouraged from doing it.
5765 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5766 digest to be passed on the command line but it only used this
5767 parameter when signing a certificate. Modified so all relevant
5768 operations are affected by the digest parameter including the
5769 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5770 DSA key was used because it didn't fix the digest.
5773 *) Initial certificate chain verify code. Currently tests the untrusted
5774 certificates for consistency with the verify purpose (which is set
5775 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5777 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5778 this is because it will reject chains with invalid extensions whereas
5779 every previous version of OpenSSL and SSLeay made no checks at all.
5781 Trust code: checks the root CA for the relevant trust settings. Trust
5782 settings have an initial value consistent with the verify purpose: e.g.
5783 if the verify purpose is for SSL client use it expects the CA to be
5784 trusted for SSL client use. However the default value can be changed to
5785 permit custom trust settings: one example of this would be to only trust
5786 certificates from a specific "secure" set of CAs.
5788 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5789 which should be used for version portability: especially since the
5790 verify structure is likely to change more often now.
5792 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5793 to set them. If not set then assume SSL clients will verify SSL servers
5796 Two new options to the verify program: -untrusted allows a set of
5797 untrusted certificates to be passed in and -purpose which sets the
5798 intended purpose of the certificate. If a purpose is set then the
5799 new chain verify code is used to check extension consistency.
5802 *) Support for the authority information access extension.
5805 *) Modify RSA and DSA PEM read routines to transparently handle
5806 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5807 public keys in a format compatible with certificate
5808 SubjectPublicKeyInfo structures. Unfortunately there were already
5809 functions called *_PublicKey_* which used various odd formats so
5810 these are retained for compatibility: however the DSA variants were
5811 never in a public release so they have been deleted. Changed dsa/rsa
5812 utilities to handle the new format: note no releases ever handled public
5813 keys so we should be OK.
5815 The primary motivation for this change is to avoid the same fiasco
5816 that dogs private keys: there are several incompatible private key
5817 formats some of which are standard and some OpenSSL specific and
5818 require various evil hacks to allow partial transparent handling and
5819 even then it doesn't work with DER formats. Given the option anything
5820 other than PKCS#8 should be dumped: but the other formats have to
5821 stay in the name of compatibility.
5823 With public keys and the benefit of hindsight one standard format
5824 is used which works with EVP_PKEY, RSA or DSA structures: though
5825 it clearly returns an error if you try to read the wrong kind of key.
5827 Added a -pubkey option to the 'x509' utility to output the public key.
5828 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5829 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5830 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5831 that do the same as the EVP_PKEY_assign_*() except they up the
5832 reference count of the added key (they don't "swallow" the
5836 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5837 CRLs would fail if the file contained no certificates or no CRLs:
5838 added a new function to read in both types and return the number
5839 read: this means that if none are read it will be an error. The
5840 DER versions of the certificate and CRL reader would always fail
5841 because it isn't possible to mix certificates and CRLs in DER format
5842 without choking one or the other routine. Changed this to just read
5843 a certificate: this is the best we can do. Also modified the code
5844 in apps/verify.c to take notice of return codes: it was previously
5845 attempting to read in certificates from NULL pointers and ignoring
5846 any errors: this is one reason why the cert and CRL reader seemed
5847 to work. It doesn't check return codes from the default certificate
5848 routines: these may well fail if the certificates aren't installed.
5851 *) Code to support otherName option in GeneralName.
5854 *) First update to verify code. Change the verify utility
5855 so it warns if it is passed a self signed certificate:
5856 for consistency with the normal behaviour. X509_verify
5857 has been modified to it will now verify a self signed
5858 certificate if *exactly* the same certificate appears
5859 in the store: it was previously impossible to trust a
5860 single self signed certificate. This means that:
5861 openssl verify ss.pem
5862 now gives a warning about a self signed certificate but
5863 openssl verify -CAfile ss.pem ss.pem
5867 *) For servers, store verify_result in SSL_SESSION data structure
5868 (and add it to external session representation).
5869 This is needed when client certificate verifications fails,
5870 but an application-provided verification callback (set by
5871 SSL_CTX_set_cert_verify_callback) allows accepting the session
5872 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5873 but returns 1): When the session is reused, we have to set
5874 ssl->verify_result to the appropriate error code to avoid
5876 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5878 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5879 case in PKCS7_dataInit() where the signed PKCS7 structure
5880 didn't contain any existing data because it was being created.
5881 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5883 *) Add a salt to the key derivation routines in enc.c. This
5884 forms the first 8 bytes of the encrypted file. Also add a
5885 -S option to allow a salt to be input on the command line.
5888 *) New function X509_cmp(). Oddly enough there wasn't a function
5889 to compare two certificates. We do this by working out the SHA1
5890 hash and comparing that. X509_cmp() will be needed by the trust
5894 *) SSL_get1_session() is like SSL_get_session(), but increments
5895 the reference count in the SSL_SESSION returned.
5896 [Geoff Thorpe <geoff@eu.c2.net>]
5898 *) Fix for 'req': it was adding a null to request attributes.
5899 Also change the X509_LOOKUP and X509_INFO code to handle
5900 certificate auxiliary information.
5903 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5907 *) Add the possibility to add extra information to the memory leak
5908 detecting output, to form tracebacks, showing from where each
5909 allocation was originated: CRYPTO_push_info("constant string") adds
5910 the string plus current file name and line number to a per-thread
5911 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5912 is like calling CYRPTO_pop_info() until the stack is empty.
5913 Also updated memory leak detection code to be multi-thread-safe.
5916 *) Add options -text and -noout to pkcs7 utility and delete the
5917 encryption options which never did anything. Update docs.
5920 *) Add options to some of the utilities to allow the pass phrase
5921 to be included on either the command line (not recommended on
5922 OSes like Unix) or read from the environment. Update the
5923 manpages and fix a few bugs.
5926 *) Add a few manpages for some of the openssl commands.
5929 *) Fix the -revoke option in ca. It was freeing up memory twice,
5930 leaking and not finding already revoked certificates.
5933 *) Extensive changes to support certificate auxiliary information.
5934 This involves the use of X509_CERT_AUX structure and X509_AUX
5935 functions. An X509_AUX function such as PEM_read_X509_AUX()
5936 can still read in a certificate file in the usual way but it
5937 will also read in any additional "auxiliary information". By
5938 doing things this way a fair degree of compatibility can be
5939 retained: existing certificates can have this information added
5940 using the new 'x509' options.
5942 Current auxiliary information includes an "alias" and some trust
5943 settings. The trust settings will ultimately be used in enhanced
5944 certificate chain verification routines: currently a certificate
5945 can only be trusted if it is self signed and then it is trusted
5949 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5950 The problem was that one of the replacement routines had not been working
5951 since SSLeay releases. For now the offending routine has been replaced
5952 with non-optimised assembler. Even so, this now gives around 95%
5953 performance improvement for 1024 bit RSA signs.
5956 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5957 handling. Most clients have the effective key size in bits equal to
5958 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5959 A few however don't do this and instead use the size of the decrypted key
5960 to determine the RC2 key length and the AlgorithmIdentifier to determine
5961 the effective key length. In this case the effective key length can still
5962 be 40 bits but the key length can be 168 bits for example. This is fixed
5963 by manually forcing an RC2 key into the EVP_PKEY structure because the
5964 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5965 the key length and effective key length are equal.
5968 *) Add a bunch of functions that should simplify the creation of
5969 X509_NAME structures. Now you should be able to do:
5970 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5971 and have it automatically work out the correct field type and fill in
5972 the structures. The more adventurous can try:
5973 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5974 and it will (hopefully) work out the correct multibyte encoding.
5977 *) Change the 'req' utility to use the new field handling and multibyte
5978 copy routines. Before the DN field creation was handled in an ad hoc
5979 way in req, ca, and x509 which was rather broken and didn't support
5980 BMPStrings or UTF8Strings. Since some software doesn't implement
5981 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5982 using the dirstring_type option. See the new comment in the default
5983 openssl.cnf for more info.
5986 *) Make crypto/rand/md_rand.c more robust:
5987 - Assure unique random numbers after fork().
5988 - Make sure that concurrent threads access the global counter and
5989 md serializably so that we never lose entropy in them
5990 or use exactly the same state in multiple threads.
5991 Access to the large state is not always serializable because
5992 the additional locking could be a performance killer, and
5993 md should be large enough anyway.
5996 *) New file apps/app_rand.c with commonly needed functionality
5997 for handling the random seed file.
5999 Use the random seed file in some applications that previously did not:
6001 dsaparam -genkey (which also ignored its '-rand' option),
6004 x509 (when signing).
6005 Except on systems with /dev/urandom, it is crucial to have a random
6006 seed file at least for key creation, DSA signing, and for DH exchanges;
6007 for RSA signatures we could do without one.
6009 gendh and gendsa (unlike genrsa) used to read only the first byte
6010 of each file listed in the '-rand' option. The function as previously
6011 found in genrsa is now in app_rand.c and is used by all programs
6012 that support '-rand'.
6015 *) In RAND_write_file, use mode 0600 for creating files;
6016 don't just chmod when it may be too late.
6019 *) Report an error from X509_STORE_load_locations
6020 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6023 *) New function ASN1_mbstring_copy() this copies a string in either
6024 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6025 into an ASN1_STRING type. A mask of permissible types is passed
6026 and it chooses the "minimal" type to use or an error if not type
6030 *) Add function equivalents to the various macros in asn1.h. The old
6031 macros are retained with an M_ prefix. Code inside the library can
6032 use the M_ macros. External code (including the openssl utility)
6033 should *NOT* in order to be "shared library friendly".
6036 *) Add various functions that can check a certificate's extensions
6037 to see if it usable for various purposes such as SSL client,
6038 server or S/MIME and CAs of these types. This is currently
6039 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6040 verification. Also added a -purpose flag to x509 utility to
6041 print out all the purposes.
6044 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6048 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6049 for, obtain and decode and extension and obtain its critical flag.
6050 This allows all the necessary extension code to be handled in a
6051 single function call.
6054 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6055 platforms. See crypto/rc4/rc4_enc.c for further details.
6058 *) New -noout option to asn1parse. This causes no output to be produced
6059 its main use is when combined with -strparse and -out to extract data
6060 from a file (which may not be in ASN.1 format).
6063 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6064 when producing the local key id.
6065 [Richard Levitte <levitte@stacken.kth.se>]
6067 *) New option -dhparam in s_server. This allows a DH parameter file to be
6068 stated explicitly. If it is not stated then it tries the first server
6069 certificate file. The previous behaviour hard coded the filename
6073 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6074 a public key to be input or output. For example:
6075 openssl rsa -in key.pem -pubout -out pubkey.pem
6076 Also added necessary DSA public key functions to handle this.
6079 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6080 in the message. This was handled by allowing
6081 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6082 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6084 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6085 to the end of the strings whereas this didn't. This would cause problems
6086 if strings read with d2i_ASN1_bytes() were later modified.
6087 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6089 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6090 data and it contains EOF it will end up returning an error. This is
6091 caused by input 46 bytes long. The cause is due to the way base64
6092 BIOs find the start of base64 encoded data. They do this by trying a
6093 trial decode on each line until they find one that works. When they
6094 do a flag is set and it starts again knowing it can pass all the
6095 data directly through the decoder. Unfortunately it doesn't reset
6096 the context it uses. This means that if EOF is reached an attempt
6097 is made to pass two EOFs through the context and this causes the
6098 resulting error. This can also cause other problems as well. As is
6099 usual with these problems it takes *ages* to find and the fix is
6100 trivial: move one line.
6101 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6103 *) Ugly workaround to get s_client and s_server working under Windows. The
6104 old code wouldn't work because it needed to select() on sockets and the
6105 tty (for keypresses and to see if data could be written). Win32 only
6106 supports select() on sockets so we select() with a 1s timeout on the
6107 sockets and then see if any characters are waiting to be read, if none
6108 are present then we retry, we also assume we can always write data to
6109 the tty. This isn't nice because the code then blocks until we've
6110 received a complete line of data and it is effectively polling the
6111 keyboard at 1s intervals: however it's quite a bit better than not
6112 working at all :-) A dedicated Windows application might handle this
6113 with an event loop for example.
6116 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6117 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6118 will be called when RSA_sign() and RSA_verify() are used. This is useful
6119 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6120 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6121 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6122 This necessitated the support of an extra signature type NID_md5_sha1
6123 for SSL signatures and modifications to the SSL library to use it instead
6124 of calling RSA_public_decrypt() and RSA_private_encrypt().
6127 *) Add new -verify -CAfile and -CApath options to the crl program, these
6128 will lookup a CRL issuers certificate and verify the signature in a
6129 similar way to the verify program. Tidy up the crl program so it
6130 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6131 less strict. It will now permit CRL extensions even if it is not
6132 a V2 CRL: this will allow it to tolerate some broken CRLs.
6135 *) Initialize all non-automatic variables each time one of the openssl
6136 sub-programs is started (this is necessary as they may be started
6137 multiple times from the "OpenSSL>" prompt).
6138 [Lennart Bang, Bodo Moeller]
6140 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6141 removing all other RSA functionality (this is what NO_RSA does). This
6142 is so (for example) those in the US can disable those operations covered
6143 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6147 *) Non-copying interface to BIO pairs.
6148 (still largely untested)
6151 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6152 ASCII string. This was handled independently in various places before.
6155 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6156 UTF8 strings a character at a time.
6159 *) Use client_version from client hello to select the protocol
6160 (s23_srvr.c) and for RSA client key exchange verification
6161 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6164 *) Add various utility functions to handle SPKACs, these were previously
6165 handled by poking round in the structure internals. Added new function
6166 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6167 print, verify and generate SPKACs. Based on an original idea from
6168 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6171 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6174 *) Allow the config file extension section to be overwritten on the
6175 command line. Based on an original idea from Massimiliano Pala
6176 <madwolf@comune.modena.it>. The new option is called -extensions
6177 and can be applied to ca, req and x509. Also -reqexts to override
6178 the request extensions in req and -crlexts to override the crl extensions
6182 *) Add new feature to the SPKAC handling in ca. Now you can include
6183 the same field multiple times by preceding it by "XXXX." for example:
6186 this is the same syntax as used in the req config file.
6189 *) Allow certificate extensions to be added to certificate requests. These
6190 are specified in a 'req_extensions' option of the req section of the
6191 config file. They can be printed out with the -text option to req but
6192 are otherwise ignored at present.
6195 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6196 data read consists of only the final block it would not decrypted because
6197 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6198 A misplaced 'break' also meant the decrypted final block might not be
6199 copied until the next read.
6202 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6203 a few extra parameters to the DH structure: these will be useful if
6204 for example we want the value of 'q' or implement X9.42 DH.
6207 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6208 provides hooks that allow the default DSA functions or functions on a
6209 "per key" basis to be replaced. This allows hardware acceleration and
6210 hardware key storage to be handled without major modification to the
6211 library. Also added low level modexp hooks and CRYPTO_EX structure and
6212 associated functions.
6215 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6216 as "read only": it can't be written to and the buffer it points to will
6217 not be freed. Reading from a read only BIO is much more efficient than
6218 a normal memory BIO. This was added because there are several times when
6219 an area of memory needs to be read from a BIO. The previous method was
6220 to create a memory BIO and write the data to it, this results in two
6221 copies of the data and an O(n^2) reading algorithm. There is a new
6222 function BIO_new_mem_buf() which creates a read only memory BIO from
6223 an area of memory. Also modified the PKCS#7 routines to use read only
6227 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6228 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6229 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6230 but a retry condition occured while trying to read the rest.
6233 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6234 NID_pkcs7_encrypted by default: this was wrong since this should almost
6235 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6236 the encrypted data type: this is a more sensible place to put it and it
6237 allows the PKCS#12 code to be tidied up that duplicated this
6241 *) Changed obj_dat.pl script so it takes its input and output files on
6242 the command line. This should avoid shell escape redirection problems
6246 *) Initial support for certificate extension requests, these are included
6247 in things like Xenroll certificate requests. Included functions to allow
6248 extensions to be obtained and added.
6251 *) -crlf option to s_client and s_server for sending newlines as
6252 CRLF (as required by many protocols).
6255 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6257 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6258 [Ralf S. Engelschall]
6260 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6261 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6263 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6267 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6268 DH parameters/keys (q is lost during that conversion, but the resulting
6269 DH parameters contain its length).
6271 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6272 much faster than DH_generate_parameters (which creates parameters
6273 where p = 2*q + 1), and also the smaller q makes DH computations
6274 much more efficient (160-bit exponentiation instead of 1024-bit
6275 exponentiation); so this provides a convenient way to support DHE
6276 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6277 utter importance to use
6278 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6280 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6281 when such DH parameters are used, because otherwise small subgroup
6282 attacks may become possible!
6285 *) Avoid memory leak in i2d_DHparams.
6288 *) Allow the -k option to be used more than once in the enc program:
6289 this allows the same encrypted message to be read by multiple recipients.
6292 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6293 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6294 it will always use the numerical form of the OID, even if it has a short
6298 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6299 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6300 otherwise bn_mod_exp was called. In the case of hardware keys for example
6301 no private key components need be present and it might store extra data
6302 in the RSA structure, which cannot be accessed from bn_mod_exp.
6303 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6304 private key operations.
6307 *) Added support for SPARC Linux.
6310 *) pem_password_cb function type incompatibly changed from
6311 typedef int pem_password_cb(char *buf, int size, int rwflag);
6313 ....(char *buf, int size, int rwflag, void *userdata);
6314 so that applications can pass data to their callbacks:
6315 The PEM[_ASN1]_{read,write}... functions and macros now take an
6316 additional void * argument, which is just handed through whenever
6317 the password callback is called.
6318 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6320 New function SSL_CTX_set_default_passwd_cb_userdata.
6322 Compatibility note: As many C implementations push function arguments
6323 onto the stack in reverse order, the new library version is likely to
6324 interoperate with programs that have been compiled with the old
6325 pem_password_cb definition (PEM_whatever takes some data that
6326 happens to be on the stack as its last argument, and the callback
6327 just ignores this garbage); but there is no guarantee whatsoever that
6330 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6331 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6332 problems not only on Windows, but also on some Unix platforms.
6333 To avoid problematic command lines, these definitions are now in an
6334 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6335 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6338 *) MIPS III/IV assembler module is reimplemented.
6341 *) More DES library cleanups: remove references to srand/rand and
6342 delete an unused file.
6345 *) Add support for the the free Netwide assembler (NASM) under Win32,
6346 since not many people have MASM (ml) and it can be hard to obtain.
6347 This is currently experimental but it seems to work OK and pass all
6348 the tests. Check out INSTALL.W32 for info.
6351 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6352 without temporary keys kept an extra copy of the server key,
6353 and connections with temporary keys did not free everything in case
6357 *) New function RSA_check_key and new openssl rsa option -check
6358 for verifying the consistency of RSA keys.
6359 [Ulf Moeller, Bodo Moeller]
6361 *) Various changes to make Win32 compile work:
6362 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6363 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6364 comparison" warnings.
6365 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6368 *) Add a debugging option to PKCS#5 v2 key generation function: when
6369 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6370 derived keys are printed to stderr.
6373 *) Copy the flags in ASN1_STRING_dup().
6374 [Roman E. Pavlov <pre@mo.msk.ru>]
6376 *) The x509 application mishandled signing requests containing DSA
6377 keys when the signing key was also DSA and the parameters didn't match.
6379 It was supposed to omit the parameters when they matched the signing key:
6380 the verifying software was then supposed to automatically use the CA's
6381 parameters if they were absent from the end user certificate.
6383 Omitting parameters is no longer recommended. The test was also
6384 the wrong way round! This was probably due to unusual behaviour in
6385 EVP_cmp_parameters() which returns 1 if the parameters match.
6386 This meant that parameters were omitted when they *didn't* match and
6387 the certificate was useless. Certificates signed with 'ca' didn't have
6389 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6391 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6392 The interface is as follows:
6393 Applications can use
6394 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6395 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6396 "off" is now the default.
6397 The library internally uses
6398 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6399 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6400 to disable memory-checking temporarily.
6402 Some inconsistent states that previously were possible (and were
6403 even the default) are now avoided.
6405 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6406 with each memory chunk allocated; this is occasionally more helpful
6407 than just having a counter.
6409 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6411 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6415 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6416 which largely parallels "options", but is for changing API behaviour,
6417 whereas "options" are about protocol behaviour.
6418 Initial "mode" flags are:
6420 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6421 a single record has been written.
6422 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6423 retries use the same buffer location.
6424 (But all of the contents must be
6428 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6431 *) Fix problems with no-hmac etc.
6432 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6434 *) New functions RSA_get_default_method(), RSA_set_method() and
6435 RSA_get_method(). These allows replacement of RSA_METHODs without having
6436 to mess around with the internals of an RSA structure.
6439 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6440 Also really enable memory leak checks in openssl.c and in some
6442 [Chad C. Mulligan, Bodo Moeller]
6444 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6445 up the length of negative integers. This has now been simplified to just
6446 store the length when it is first determined and use it later, rather
6447 than trying to keep track of where data is copied and updating it to
6449 [Steve Henson, reported by Brien Wheeler
6450 <bwheeler@authentica-security.com>]
6452 *) Add a new function PKCS7_signatureVerify. This allows the verification
6453 of a PKCS#7 signature but with the signing certificate passed to the
6454 function itself. This contrasts with PKCS7_dataVerify which assumes the
6455 certificate is present in the PKCS#7 structure. This isn't always the
6456 case: certificates can be omitted from a PKCS#7 structure and be
6457 distributed by "out of band" means (such as a certificate database).
6460 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6461 function prototypes in pem.h, also change util/mkdef.pl to add the
6462 necessary function names.
6465 *) mk1mf.pl (used by Windows builds) did not properly read the
6466 options set by Configure in the top level Makefile, and Configure
6467 was not even able to write more than one option correctly.
6468 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6471 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6472 file to be loaded from a BIO or FILE pointer. The BIO version will
6473 for example allow memory BIOs to contain config info.
6476 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6477 Whoever hopes to achieve shared-library compatibility across versions
6478 must use this, not the compile-time macro.
6479 (Exercise 0.9.4: Which is the minimum library version required by
6481 Note: All this applies only to multi-threaded programs, others don't
6485 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6486 through a BIO pair triggered the default case, i.e.
6487 SSLerr(...,SSL_R_UNKNOWN_STATE).
6490 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6491 can use the SSL library even if none of the specific BIOs is
6495 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6496 for the encoded length.
6497 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6499 *) Add initial documentation of the X509V3 functions.
6502 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6503 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6504 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6505 secure PKCS#8 private key format with a high iteration count.
6508 *) Fix determination of Perl interpreter: A perl or perl5
6509 _directory_ in $PATH was also accepted as the interpreter.
6510 [Ralf S. Engelschall]
6512 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6513 wrong with it but it was very old and did things like calling
6514 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6518 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6519 to use the new extension code.
6522 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6523 with macros. This should make it easier to change their form, add extra
6524 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6528 *) Add to configuration table a new entry that can specify an alternative
6529 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6530 according to Mark Crispin <MRC@Panda.COM>.
6534 *) DES CBC did not update the IV. Weird.
6537 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6538 Changing the behaviour of the former might break existing programs --
6539 where IV updating is needed, des_ncbc_encrypt can be used.
6542 *) When bntest is run from "make test" it drives bc to check its
6543 calculations, as well as internally checking them. If an internal check
6544 fails, it needs to cause bc to give a non-zero result or make test carries
6545 on without noticing the failure. Fixed.
6548 *) DES library cleanups.
6551 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6552 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6553 ciphers. NOTE: although the key derivation function has been verified
6554 against some published test vectors it has not been extensively tested
6555 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6559 *) Instead of "mkdir -p", which is not fully portable, use new
6560 Perl script "util/mkdir-p.pl".
6563 *) Rewrite the way password based encryption (PBE) is handled. It used to
6564 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6565 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6566 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6567 the 'parameter' field of the AlgorithmIdentifier is passed to the
6568 underlying key generation function so it must do its own ASN1 parsing.
6569 This has also changed the EVP_PBE_CipherInit() function which now has a
6570 'parameter' argument instead of literal salt and iteration count values
6571 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6574 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6575 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6576 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6577 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6578 value was just used as a "magic string" and not used directly its
6579 value doesn't matter.
6582 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6586 *) "linux-sparc64" configuration (ultrapenguin).
6587 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6588 "linux-sparc" configuration.
6589 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6591 *) config now generates no-xxx options for missing ciphers.
6594 *) Support the EBCDIC character set (work in progress).
6595 File ebcdic.c not yet included because it has a different license.
6596 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6598 *) Support BS2000/OSD-POSIX.
6599 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6601 *) Make callbacks for key generation use void * instead of char *.
6604 *) Make S/MIME samples compile (not yet tested).
6607 *) Additional typesafe stacks.
6610 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6614 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6616 *) New configuration variant "sco5-gcc".
6618 *) Updated some demos.
6619 [Sean O Riordain, Wade Scholine]
6621 *) Add missing BIO_free at exit of pkcs12 application.
6624 *) Fix memory leak in conf.c.
6627 *) Updates for Win32 to assembler version of MD5.
6630 *) Set #! path to perl in apps/der_chop to where we found it
6631 instead of using a fixed path.
6634 *) SHA library changes for irix64-mips4-cc.
6637 *) Improvements for VMS support.
6641 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6643 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6644 This also avoids the problems with SC4.2 and unpatched SC5.
6645 [Andy Polyakov <appro@fy.chalmers.se>]
6647 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6648 These are required because of the typesafe stack would otherwise break
6649 existing code. If old code used a structure member which used to be STACK
6650 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6651 sk_num or sk_value it would produce an error because the num, data members
6652 are not present in STACK_OF. Now it just produces a warning. sk_set
6653 replaces the old method of assigning a value to sk_value
6654 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6655 that does this will no longer work (and should use sk_set instead) but
6656 this could be regarded as a "questionable" behaviour anyway.
6659 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6660 correctly handle encrypted S/MIME data.
6663 *) Change type of various DES function arguments from des_cblock
6664 (which means, in function argument declarations, pointer to char)
6665 to des_cblock * (meaning pointer to array with 8 char elements),
6666 which allows the compiler to do more typechecking; it was like
6667 that back in SSLeay, but with lots of ugly casts.
6669 Introduce new type const_des_cblock.
6672 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6673 problems: find RecipientInfo structure that matches recipient certificate
6674 and initialise the ASN1 structures properly based on passed cipher.
6677 *) Belatedly make the BN tests actually check the results.
6680 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6681 to and from BNs: it was completely broken. New compilation option
6682 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6683 key elements as negative integers.
6686 *) Reorganize and speed up MD5.
6687 [Andy Polyakov <appro@fy.chalmers.se>]
6690 [Richard Levitte <richard@levitte.org>]
6692 *) New option -out to asn1parse to allow the parsed structure to be
6693 output to a file. This is most useful when combined with the -strparse
6694 option to examine the output of things like OCTET STRINGS.
6697 *) Make SSL library a little more fool-proof by not requiring any longer
6698 that SSL_set_{accept,connect}_state be called before
6699 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6700 in many applications because usually everything *appeared* to work as
6701 intended anyway -- now it really works as intended).
6704 *) Move openssl.cnf out of lib/.
6707 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6708 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6709 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6710 [Ralf S. Engelschall]
6712 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6713 handle PKCS#7 enveloped data properly.
6714 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6716 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6717 copying pointers. The cert_st handling is changed by this in
6718 various ways (and thus what used to be known as ctx->default_cert
6719 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6720 any longer when s->cert does not give us what we need).
6721 ssl_cert_instantiate becomes obsolete by this change.
6722 As soon as we've got the new code right (possibly it already is?),
6723 we have solved a couple of bugs of the earlier code where s->cert
6724 was used as if it could not have been shared with other SSL structures.
6726 Note that using the SSL API in certain dirty ways now will result
6727 in different behaviour than observed with earlier library versions:
6728 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6729 does not influence s as it used to.
6731 In order to clean up things more thoroughly, inside SSL_SESSION
6732 we don't use CERT any longer, but a new structure SESS_CERT
6733 that holds per-session data (if available); currently, this is
6734 the peer's certificate chain and, for clients, the server's certificate
6735 and temporary key. CERT holds only those values that can have
6736 meaningful defaults in an SSL_CTX.
6739 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6740 from the internal representation. Various PKCS#7 fixes: remove some
6741 evil casts and set the enc_dig_alg field properly based on the signing
6745 *) Allow PKCS#12 password to be set from the command line or the
6746 environment. Let 'ca' get its config file name from the environment
6747 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6751 *) Allow certificate policies extension to use an IA5STRING for the
6752 organization field. This is contrary to the PKIX definition but
6753 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6757 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6758 without disallowing inline assembler and the like for non-pedantic builds.
6761 *) Support Borland C++ builder.
6762 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6767 *) SHA-1 cleanups and performance enhancements.
6768 [Andy Polyakov <appro@fy.chalmers.se>]
6770 *) Sparc v8plus assembler for the bignum library.
6771 [Andy Polyakov <appro@fy.chalmers.se>]
6773 *) Accept any -xxx and +xxx compiler options in Configure.
6776 *) Update HPUX configuration.
6779 *) Add missing sk_<type>_unshift() function to safestack.h
6780 [Ralf S. Engelschall]
6782 *) New function SSL_CTX_use_certificate_chain_file that sets the
6783 "extra_cert"s in addition to the certificate. (This makes sense
6784 only for "PEM" format files, as chains as a whole are not
6788 *) Support verify_depth from the SSL API.
6789 x509_vfy.c had what can be considered an off-by-one-error:
6790 Its depth (which was not part of the external interface)
6791 was actually counting the number of certificates in a chain;
6792 now it really counts the depth.
6795 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6796 instead of X509err, which often resulted in confusing error
6797 messages since the error codes are not globally unique
6798 (e.g. an alleged error in ssl3_accept when a certificate
6799 didn't match the private key).
6801 *) New function SSL_CTX_set_session_id_context that allows to set a default
6802 value (so that you don't need SSL_set_session_id_context for each
6803 connection using the SSL_CTX).
6806 *) OAEP decoding bug fix.
6809 *) Support INSTALL_PREFIX for package builders, as proposed by
6813 *) New Configure options "threads" and "no-threads". For systems
6814 where the proper compiler options are known (currently Solaris
6815 and Linux), "threads" is the default.
6818 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6821 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6822 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6823 such as /usr/local/bin.
6826 *) "make linux-shared" to build shared libraries.
6827 [Niels Poppe <niels@netbox.org>]
6829 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6832 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6833 extension adding in x509 utility.
6836 *) Remove NOPROTO sections and error code comments.
6839 *) Partial rewrite of the DEF file generator to now parse the ANSI
6843 *) New Configure options --prefix=DIR and --openssldir=DIR.
6846 *) Complete rewrite of the error code script(s). It is all now handled
6847 by one script at the top level which handles error code gathering,
6848 header rewriting and C source file generation. It should be much better
6849 than the old method: it now uses a modified version of Ulf's parser to
6850 read the ANSI prototypes in all header files (thus the old K&R definitions
6851 aren't needed for error creation any more) and do a better job of
6852 translating function codes into names. The old 'ASN1 error code imbedded
6853 in a comment' is no longer necessary and it doesn't use .err files which
6854 have now been deleted. Also the error code call doesn't have to appear all
6855 on one line (which resulted in some large lines...).
6858 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6861 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6862 0 (which usually indicates a closed connection), but continue reading.
6865 *) Fix some race conditions.
6868 *) Add support for CRL distribution points extension. Add Certificate
6869 Policies and CRL distribution points documentation.
6872 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6875 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6876 8 of keying material. Merlin has also confirmed interop with this fix
6877 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6878 [Merlin Hughes <merlin@baltimore.ie>]
6880 *) Fix lots of warnings.
6881 [Richard Levitte <levitte@stacken.kth.se>]
6883 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6884 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6885 [Richard Levitte <levitte@stacken.kth.se>]
6887 *) Fix problems with sizeof(long) == 8.
6888 [Andy Polyakov <appro@fy.chalmers.se>]
6890 *) Change functions to ANSI C.
6893 *) Fix typos in error codes.
6894 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6896 *) Remove defunct assembler files from Configure.
6899 *) SPARC v8 assembler BIGNUM implementation.
6900 [Andy Polyakov <appro@fy.chalmers.se>]
6902 *) Support for Certificate Policies extension: both print and set.
6903 Various additions to support the r2i method this uses.
6906 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6907 return a const string when you are expecting an allocated buffer.
6910 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6911 types DirectoryString and DisplayText.
6914 *) Add code to allow r2i extensions to access the configuration database,
6915 add an LHASH database driver and add several ctx helper functions.
6918 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6919 fail when they extended the size of a BIGNUM.
6922 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6923 support typesafe stack.
6926 *) Fix typo in SSL_[gs]et_options().
6927 [Nils Frostberg <nils@medcom.se>]
6929 *) Delete various functions and files that belonged to the (now obsolete)
6930 old X509V3 handling code.
6933 *) New Configure option "rsaref".
6936 *) Don't auto-generate pem.h.
6939 *) Introduce type-safe ASN.1 SETs.
6942 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6943 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6945 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6946 that links with OpenSSL (well at least cause lots of warnings), but fear
6947 not: the conversion is trivial, and it eliminates loads of evil casts. A
6948 few STACKed things have been converted already. Feel free to convert more.
6949 In the fullness of time, I'll do away with the STACK type altogether.
6952 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6953 specified in <certfile> by updating the entry in the index.txt file.
6954 This way one no longer has to edit the index.txt file manually for
6955 revoking a certificate. The -revoke option does the gory details now.
6956 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6958 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6959 `-text' option at all and this way the `-noout -text' combination was
6960 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6961 [Ralf S. Engelschall]
6963 *) Make sure a corresponding plain text error message exists for the
6964 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6965 verify callback function determined that a certificate was revoked.
6966 [Ralf S. Engelschall]
6968 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6969 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6970 all available cipers including rc5, which was forgotten until now.
6971 In order to let the testing shell script know which algorithms
6972 are available, a new (up to now undocumented) command
6973 "openssl list-cipher-commands" is used.
6976 *) Bugfix: s_client occasionally would sleep in select() when
6977 it should have checked SSL_pending() first.
6980 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6981 the raw DSA values prior to ASN.1 encoding.
6984 *) Tweaks to Configure
6985 [Niels Poppe <niels@netbox.org>]
6987 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6991 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6994 *) New config option to avoid instructions that are illegal on the 80386.
6995 The default code is faster, but requires at least a 486.
6998 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6999 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7000 same as SSL2_VERSION anyway.
7003 *) New "-showcerts" option for s_client.
7006 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7007 application. Various cleanups and fixes.
7010 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7011 modify error routines to work internally. Add error codes and PBE init
7012 to library startup routines.
7015 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7016 packing functions to asn1 and evp. Changed function names and error
7017 codes along the way.
7020 *) PKCS12 integration: and so it begins... First of several patches to
7021 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7022 objects to objects.h
7025 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7026 and display support for Thawte strong extranet extension.
7029 *) Add LinuxPPC support.
7030 [Jeff Dubrule <igor@pobox.org>]
7032 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7033 bn_div_words in alpha.s.
7034 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7036 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7037 OAEP isn't supported when OpenSSL is built with RSAref.
7038 [Ulf Moeller <ulf@fitug.de>]
7040 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7041 so they no longer are missing under -DNOPROTO.
7042 [Soren S. Jorvang <soren@t.dk>]
7045 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7047 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7048 doesn't work when the session is reused. Coming soon!
7051 *) Fix a security hole, that allows sessions to be reused in the wrong
7052 context thus bypassing client cert protection! All software that uses
7053 client certs and session caches in multiple contexts NEEDS PATCHING to
7054 allow session reuse! A fuller solution is in the works.
7055 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7057 *) Some more source tree cleanups (removed obsolete files
7058 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7059 permission on "config" script to be executable) and a fix for the INSTALL
7061 [Ulf Moeller <ulf@fitug.de>]
7063 *) Remove some legacy and erroneous uses of malloc, free instead of
7065 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7067 *) Make rsa_oaep_test return non-zero on error.
7068 [Ulf Moeller <ulf@fitug.de>]
7070 *) Add support for native Solaris shared libraries. Configure
7071 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7072 if someone would make that last step automatic.
7073 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7075 *) ctx_size was not built with the right compiler during "make links". Fixed.
7078 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7079 except NULL ciphers". This means the default cipher list will no longer
7080 enable NULL ciphers. They need to be specifically enabled e.g. with
7081 the string "DEFAULT:eNULL".
7084 *) Fix to RSA private encryption routines: if p < q then it would
7085 occasionally produce an invalid result. This will only happen with
7086 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7089 *) Be less restrictive and allow also `perl util/perlpath.pl
7090 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7091 because this way one can also use an interpreter named `perl5' (which is
7092 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7093 installed as `perl').
7094 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7096 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7097 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7099 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7100 advapi32.lib to Win32 build and change the pem test comparision
7101 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7102 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7103 and crypto/des/ede_cbcm_enc.c.
7106 *) DES quad checksum was broken on big-endian architectures. Fixed.
7109 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7110 Win32 test batch file so it (might) work again. The Win32 test batch file
7111 is horrible: I feel ill....
7114 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7115 in e_os.h. Audit of header files to check ANSI and non ANSI
7116 sections: 10 functions were absent from non ANSI section and not exported
7117 from Windows DLLs. Fixed up libeay.num for new functions.
7120 *) Make `openssl version' output lines consistent.
7121 [Ralf S. Engelschall]
7123 *) Fix Win32 symbol export lists for BIO functions: Added
7124 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7125 to ms/libeay{16,32}.def.
7126 [Ralf S. Engelschall]
7128 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7129 fine under Unix and passes some trivial tests I've now added. But the
7130 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7131 added to make sure no one expects that this stuff really works in the
7132 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7133 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7135 [Ralf S. Engelschall]
7137 *) Fix the generation of two part addresses in perl.
7138 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7140 *) Add config entry for Linux on MIPS.
7141 [John Tobey <jtobey@channel1.com>]
7143 *) Make links whenever Configure is run, unless we are on Windoze.
7146 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7147 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7151 *) Add a useful kludge to allow package maintainers to specify compiler and
7152 other platforms details on the command line without having to patch the
7153 Configure script everytime: One now can use ``perl Configure
7154 <id>:<details>'', i.e. platform ids are allowed to have details appended
7155 to them (seperated by colons). This is treated as there would be a static
7156 pre-configured entry in Configure's %table under key <id> with value
7157 <details> and ``perl Configure <id>'' is called. So, when you want to
7158 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7159 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7160 now, which overrides the FreeBSD-elf entry on-the-fly.
7161 [Ralf S. Engelschall]
7163 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7166 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7167 on the `perl Configure ...' command line. This way one can compile
7168 OpenSSL libraries with Position Independent Code (PIC) which is needed
7169 for linking it into DSOs.
7170 [Ralf S. Engelschall]
7172 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7176 *) Cleaned up the LICENSE document: The official contact for any license
7177 questions now is the OpenSSL core team under openssl-core@openssl.org.
7178 And add a paragraph about the dual-license situation to make sure people
7179 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7180 to the OpenSSL toolkit.
7181 [Ralf S. Engelschall]
7183 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7184 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7185 Additonally cleaned up the `make links' target: Remove unnecessary
7186 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7187 to speed processing and no longer clutter the display with confusing
7188 stuff. Instead only the actually done links are displayed.
7189 [Ralf S. Engelschall]
7191 *) Permit null encryption ciphersuites, used for authentication only. It used
7192 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7193 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7197 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7198 signed attributes when verifying signatures (this would break them),
7199 the detached data encoding was wrong and public keys obtained using
7200 X509_get_pubkey() weren't freed.
7203 *) Add text documentation for the BUFFER functions. Also added a work around
7204 to a Win95 console bug. This was triggered by the password read stuff: the
7205 last character typed gets carried over to the next fread(). If you were
7206 generating a new cert request using 'req' for example then the last
7207 character of the passphrase would be CR which would then enter the first
7211 *) Added the new `Includes OpenSSL Cryptography Software' button as
7212 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7213 button and can be used by applications based on OpenSSL to show the
7214 relationship to the OpenSSL project.
7215 [Ralf S. Engelschall]
7217 *) Remove confusing variables in function signatures in files
7218 ssl/ssl_lib.c and ssl/ssl.h.
7219 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7221 *) Don't install bss_file.c under PREFIX/include/
7222 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7224 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7225 functions that return function pointers and has support for NT specific
7226 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7227 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7228 unsigned to signed types: this was killing the Win32 compile.
7231 *) Add new certificate file to stack functions,
7232 SSL_add_dir_cert_subjects_to_stack() and
7233 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7234 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7235 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7236 This means that Apache-SSL and similar packages don't have to mess around
7237 to add as many CAs as they want to the preferred list.
7240 *) Experiment with doxygen documentation. Currently only partially applied to
7242 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7243 openssl.doxy as the configuration file.
7246 *) Get rid of remaining C++-style comments which strict C compilers hate.
7247 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7249 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7250 compiled in by default: it has problems with large keys.
7253 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7254 DH private keys and/or callback functions which directly correspond to
7255 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7256 is needed for applications which have to configure certificates on a
7257 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7259 For the RSA certificate situation is makes no difference, but
7260 for the DSA certificate situation this fixes the "no shared cipher"
7261 problem where the OpenSSL cipher selection procedure failed because the
7262 temporary keys were not overtaken from the context and the API provided
7263 no way to reconfigure them.
7264 The new functions now let applications reconfigure the stuff and they
7265 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7266 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7267 non-public-API function ssl_cert_instantiate() is used as a helper
7268 function and also to reduce code redundancy inside ssl_rsa.c.
7269 [Ralf S. Engelschall]
7271 *) Move s_server -dcert and -dkey options out of the undocumented feature
7272 area because they are useful for the DSA situation and should be
7273 recognized by the users.
7274 [Ralf S. Engelschall]
7276 *) Fix the cipher decision scheme for export ciphers: the export bits are
7277 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7278 SSL_EXP_MASK. So, the original variable has to be used instead of the
7279 already masked variable.
7280 [Richard Levitte <levitte@stacken.kth.se>]
7282 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7283 [Richard Levitte <levitte@stacken.kth.se>]
7285 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7286 from `int' to `unsigned int' because it's a length and initialized by
7287 EVP_DigestFinal() which expects an `unsigned int *'.
7288 [Richard Levitte <levitte@stacken.kth.se>]
7290 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7291 script. Instead use the usual Shell->Perl transition trick.
7292 [Ralf S. Engelschall]
7294 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7295 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7296 -noout -modulus' as it's already the case for `openssl rsa -noout
7297 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7298 currently the public key is printed (a decision which was already done by
7299 `openssl dsa -modulus' in the past) which serves a similar purpose.
7300 Additionally the NO_RSA no longer completely removes the whole -modulus
7301 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7303 [Ralf S. Engelschall]
7305 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7306 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7307 [Arne Ansper <arne@ats.cyber.ee>]
7309 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7310 to be added. Now both 'req' and 'ca' can use new objects defined in the
7314 *) Add cool BIO that does syslog (or event log on NT).
7315 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7317 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7318 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7319 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7320 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7323 *) Add preliminary config info for new extension code.
7326 *) Make RSA_NO_PADDING really use no padding.
7327 [Ulf Moeller <ulf@fitug.de>]
7329 *) Generate errors when private/public key check is done.
7332 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7333 for some CRL extensions and new objects added.
7336 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7337 key usage extension and fuller support for authority key id.
7340 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7341 padding method for RSA, which is recommended for new applications in PKCS
7342 #1 v2.0 (RFC 2437, October 1998).
7343 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7344 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7345 against Bleichbacher's attack on RSA.
7346 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7349 *) Updates to the new SSL compression code
7350 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7352 *) Fix so that the version number in the master secret, when passed
7353 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7354 (because the server will not accept higher), that the version number
7355 is 0x03,0x01, not 0x03,0x00
7356 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7358 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7359 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7360 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7363 *) Support for RAW extensions where an arbitrary extension can be
7364 created by including its DER encoding. See apps/openssl.cnf for
7368 *) Make sure latest Perl versions don't interpret some generated C array
7369 code as Perl array code in the crypto/err/err_genc.pl script.
7370 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7372 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7373 not many people have the assembler. Various Win32 compilation fixes and
7374 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7378 *) Modify configure script 'Configure' to automatically create crypto/date.h
7379 file under Win32 and also build pem.h from pem.org. New script
7380 util/mkfiles.pl to create the MINFO file on environments that can't do a
7381 'make files': perl util/mkfiles.pl >MINFO should work.
7384 *) Major rework of DES function declarations, in the pursuit of correctness
7385 and purity. As a result, many evil casts evaporated, and some weirdness,
7386 too. You may find this causes warnings in your code. Zapping your evil
7387 casts will probably fix them. Mostly.
7390 *) Fix for a typo in asn1.h. Bug fix to object creation script
7391 obj_dat.pl. It considered a zero in an object definition to mean
7392 "end of object": none of the objects in objects.h have any zeros
7393 so it wasn't spotted.
7394 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7396 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7397 Masking (CBCM). In the absence of test vectors, the best I have been able
7398 to do is check that the decrypt undoes the encrypt, so far. Send me test
7399 vectors if you have them.
7402 *) Correct calculation of key length for export ciphers (too much space was
7403 allocated for null ciphers). This has not been tested!
7406 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7407 message is now correct (it understands "crypto" and "ssl" on its
7408 command line). There is also now an "update" option. This will update
7409 the util/ssleay.num and util/libeay.num files with any new functions.
7411 perl util/mkdef.pl crypto ssl update
7412 it will update them.
7415 *) Overhauled the Perl interface (perl/*):
7416 - ported BN stuff to OpenSSL's different BN library
7417 - made the perl/ source tree CVS-aware
7418 - renamed the package from SSLeay to OpenSSL (the files still contain
7419 their history because I've copied them in the repository)
7420 - removed obsolete files (the test scripts will be replaced
7421 by better Test::Harness variants in the future)
7422 [Ralf S. Engelschall]
7424 *) First cut for a very conservative source tree cleanup:
7425 1. merge various obsolete readme texts into doc/ssleay.txt
7426 where we collect the old documents and readme texts.
7427 2. remove the first part of files where I'm already sure that we no
7428 longer need them because of three reasons: either they are just temporary
7429 files which were left by Eric or they are preserved original files where
7430 I've verified that the diff is also available in the CVS via "cvs diff
7431 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7432 the crypto/md/ stuff).
7433 [Ralf S. Engelschall]
7435 *) More extension code. Incomplete support for subject and issuer alt
7436 name, issuer and authority key id. Change the i2v function parameters
7437 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7438 what that's for :-) Fix to ASN1 macro which messed up
7439 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7442 *) Preliminary support for ENUMERATED type. This is largely copied from the
7446 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7447 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7449 *) Make sure `make rehash' target really finds the `openssl' program.
7450 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7452 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7453 like to hear about it if this slows down other processors.
7456 *) Add CygWin32 platform information to Configure script.
7457 [Alan Batie <batie@aahz.jf.intel.com>]
7459 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7460 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7462 *) New program nseq to manipulate netscape certificate sequences
7465 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7469 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7470 but the BN code had some problems that would cause failures when
7471 doing certificate verification and some other functions.
7472 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7474 *) Add ASN1 and PEM code to support netscape certificate sequences.
7477 *) Add ASN1 and PEM code to support netscape certificate sequences.
7480 *) Add several PKIX and private extended key usage OIDs.
7483 *) Modify the 'ca' program to handle the new extension code. Modify
7484 openssl.cnf for new extension format, add comments.
7487 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7488 and add a sample to openssl.cnf so req -x509 now adds appropriate
7492 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7493 error code, add initial support to X509_print() and x509 application.
7496 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7497 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7498 stuff is currently isolated and isn't even compiled yet.
7501 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7502 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7503 Removed the versions check from X509 routines when loading extensions:
7504 this allows certain broken certificates that don't set the version
7505 properly to be processed.
7508 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7509 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7510 can still be regenerated with "make depend".
7513 *) Spelling mistake in C version of CAST-128.
7514 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7516 *) Changes to the error generation code. The perl script err-code.pl
7517 now reads in the old error codes and retains the old numbers, only
7518 adding new ones if necessary. It also only changes the .err files if new
7519 codes are added. The makefiles have been modified to only insert errors
7520 when needed (to avoid needlessly modifying header files). This is done
7521 by only inserting errors if the .err file is newer than the auto generated
7522 C file. To rebuild all the error codes from scratch (the old behaviour)
7523 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7524 or delete all the .err files.
7527 *) CAST-128 was incorrectly implemented for short keys. The C version has
7528 been fixed, but is untested. The assembler versions are also fixed, but
7529 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7530 to regenerate it if needed.
7531 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7532 Hagino <itojun@kame.net>]
7534 *) File was opened incorrectly in randfile.c.
7535 [Ulf Möller <ulf@fitug.de>]
7537 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7538 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7539 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7540 al: it's just almost always a UTCTime. Note this patch adds new error
7541 codes so do a "make errors" if there are problems.
7544 *) Correct Linux 1 recognition in config.
7545 [Ulf Möller <ulf@fitug.de>]
7547 *) Remove pointless MD5 hash when using DSA keys in ca.
7548 [Anonymous <nobody@replay.com>]
7550 *) Generate an error if given an empty string as a cert directory. Also
7551 generate an error if handed NULL (previously returned 0 to indicate an
7552 error, but didn't set one).
7553 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7555 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7558 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7559 parameters. This was causing a warning which killed off the Win32 compile.
7562 *) Remove C++ style comments from crypto/bn/bn_local.h.
7563 [Neil Costigan <neil.costigan@celocom.com>]
7565 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7566 based on a text string, looking up short and long names and finally
7567 "dot" format. The "dot" format stuff didn't work. Added new function
7568 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7569 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7570 OID is not part of the table.
7573 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7574 X509_LOOKUP_by_alias().
7577 *) Sort openssl functions by name.
7580 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7581 encryption from sample DSA keys (in case anyone is interested the password
7585 *) Make _all_ *_free functions accept a NULL pointer.
7586 [Frans Heymans <fheymans@isaserver.be>]
7588 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7590 [Anonymous <nobody@replay.com>]
7592 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7593 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7595 *) Don't blow it for numeric -newkey arguments to apps/req.
7596 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7598 *) Temp key "for export" tests were wrong in s3_srvr.c.
7599 [Anonymous <nobody@replay.com>]
7601 *) Add prototype for temp key callback functions
7602 SSL_CTX_set_tmp_{rsa,dh}_callback().
7605 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7606 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7609 *) X509_name_add_entry() freed the wrong thing after an error.
7610 [Arne Ansper <arne@ats.cyber.ee>]
7612 *) rsa_eay.c would attempt to free a NULL context.
7613 [Arne Ansper <arne@ats.cyber.ee>]
7615 *) BIO_s_socket() had a broken should_retry() on Windoze.
7616 [Arne Ansper <arne@ats.cyber.ee>]
7618 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7619 [Arne Ansper <arne@ats.cyber.ee>]
7621 *) Make sure the already existing X509_STORE->depth variable is initialized
7622 in X509_STORE_new(), but document the fact that this variable is still
7623 unused in the certificate verification process.
7624 [Ralf S. Engelschall]
7626 *) Fix the various library and apps files to free up pkeys obtained from
7627 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7630 *) Fix reference counting in X509_PUBKEY_get(). This makes
7631 demos/maurice/example2.c work, amongst others, probably.
7632 [Steve Henson and Ben Laurie]
7634 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7635 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7636 are no longer created. This way we have a single and consistent command
7637 line interface `openssl <command>', similar to `cvs <command>'.
7638 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7640 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7641 BIT STRING wrapper always have zero unused bits.
7644 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7647 *) Make the top-level INSTALL documentation easier to understand.
7650 *) Makefiles updated to exit if an error occurs in a sub-directory
7651 make (including if user presses ^C) [Paul Sutton]
7653 *) Make Montgomery context stuff explicit in RSA data structure.
7656 *) Fix build order of pem and err to allow for generated pem.h.
7659 *) Fix renumbering bug in X509_NAME_delete_entry().
7662 *) Enhanced the err-ins.pl script so it makes the error library number
7663 global and can add a library name. This is needed for external ASN1 and
7664 other error libraries.
7667 *) Fixed sk_insert which never worked properly.
7670 *) Fix ASN1 macros so they can handle indefinite length construted
7671 EXPLICIT tags. Some non standard certificates use these: they can now
7675 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7676 into a single doc/ssleay.txt bundle. This way the information is still
7677 preserved but no longer messes up this directory. Now it's new room for
7678 the new set of documenation files.
7679 [Ralf S. Engelschall]
7681 *) SETs were incorrectly DER encoded. This was a major pain, because they
7682 shared code with SEQUENCEs, which aren't coded the same. This means that
7683 almost everything to do with SETs or SEQUENCEs has either changed name or
7684 number of arguments.
7685 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7687 *) Fix test data to work with the above.
7690 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7691 was already fixed by Eric for 0.9.1 it seems.
7692 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7694 *) Autodetect FreeBSD3.
7697 *) Fix various bugs in Configure. This affects the following platforms:
7701 unixware-2.0-pentium
7705 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7706 before they are needed.
7709 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7713 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7715 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7716 changed SSLeay to OpenSSL in version strings.
7717 [Ralf S. Engelschall]
7719 *) Some fixups to the top-level documents.
7722 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7723 because the symlink to include/ was missing.
7724 [Ralf S. Engelschall]
7726 *) Incorporated the popular no-RSA/DSA-only patches
7727 which allow to compile a RSA-free SSLeay.
7728 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7730 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7731 when "ssleay" is still not found.
7732 [Ralf S. Engelschall]
7734 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7735 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7737 *) Updated the README file.
7738 [Ralf S. Engelschall]
7740 *) Added various .cvsignore files in the CVS repository subdirs
7741 to make a "cvs update" really silent.
7742 [Ralf S. Engelschall]
7744 *) Recompiled the error-definition header files and added
7745 missing symbols to the Win32 linker tables.
7746 [Ralf S. Engelschall]
7748 *) Cleaned up the top-level documents;
7749 o new files: CHANGES and LICENSE
7750 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7751 o merged COPYRIGHT into LICENSE
7752 o removed obsolete TODO file
7753 o renamed MICROSOFT to INSTALL.W32
7754 [Ralf S. Engelschall]
7756 *) Removed dummy files from the 0.9.1b source tree:
7757 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7758 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7759 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7760 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7761 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7762 [Ralf S. Engelschall]
7764 *) Added various platform portability fixes.
7767 *) The Genesis of the OpenSSL rpject:
7768 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7769 Young and Tim J. Hudson created while they were working for C2Net until
7771 [The OpenSSL Project]
7774 Changes between 0.9.0b and 0.9.1b [not released]
7776 *) Updated a few CA certificates under certs/
7779 *) Changed some BIGNUM api stuff.
7782 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7783 DGUX x86, Linux Alpha, etc.
7786 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7787 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7791 *) Add -strparse option to asn1pars program which parses nested
7793 [Dr Stephen Henson <shenson@bigfoot.com>]
7795 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7798 *) DSA fix for "ca" program.
7801 *) Added "-genkey" option to "dsaparam" program.
7804 *) Added RIPE MD160 (rmd160) message digest.
7807 *) Added -a (all) option to "ssleay version" command.
7810 *) Added PLATFORM define which is the id given to Configure.
7813 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7816 *) Extended the ASN.1 parser routines.
7819 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7822 *) Added a BN_CTX to the BN library.
7825 *) Fixed the weak key values in DES library
7828 *) Changed API in EVP library for cipher aliases.
7831 *) Added support for RC2/64bit cipher.
7834 *) Converted the lhash library to the crypto/mem.c functions.
7837 *) Added more recognized ASN.1 object ids.
7840 *) Added more RSA padding checks for SSL/TLS.
7843 *) Added BIO proxy/filter functionality.
7846 *) Added extra_certs to SSL_CTX which can be used
7847 send extra CA certificates to the client in the CA cert chain sending
7848 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7851 *) Now Fortezza is denied in the authentication phase because
7852 this is key exchange mechanism is not supported by SSLeay at all.
7855 *) Additional PKCS1 checks.
7858 *) Support the string "TLSv1" for all TLS v1 ciphers.
7861 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7862 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7865 *) Fixed a few memory leaks.
7868 *) Fixed various code and comment typos.
7871 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7872 bytes sent in the client random.
7873 [Edward Bishop <ebishop@spyglass.com>]