5 Changes between 0.9.8b and 0.9.9 [xx XXX xxxx]
7 *) New -macalg option to pkcs12 utility to allow setting of an alternative
11 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
12 Reorganize PBE internals to lookup from a static table using NIDs,
13 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
14 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
15 PRF which will be automatically used with PBES2.
18 *) Replace the algorithm specific calls to generate keys in "req" with the
22 *) Update PKCS#7 enveloped data routines to use new API. This is now
23 supported by any public key method supporting the encrypt operation. A
24 ctrl is added to allow the public key algorithm to examine or modify
25 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
29 *) Add a ctrl to asn1 method to allow a public key algorithm to express
30 a default digest type to use. In most cases this will be SHA1 but some
31 algorithms (such as GOST) need to specify an alternative digest. The
32 return value indicates how strong the prefernce is 1 means optional and
33 2 is mandatory (that is it is the only supported type). Modify
34 ASN1_item_sign() to accept a NULL digest argument to indicate it should
35 use the default md. Update openssl utilities to use the default digest
36 type for signing if it is not explicitly indicated.
39 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
40 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
41 signing method from the key type. This effectively removes the link
42 between digests and public key types.
45 *) Add an OID cross reference table and utility functions. Its purpose is to
46 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
47 rsaEncryption. This will allow some of the algorithm specific hackery
48 needed to use the correct OID to be removed.
51 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
52 structures for PKCS7_sign(). They are now set up by the relevant public
56 *) Add provisional EC pkey method with support for ECDSA and ECDH.
59 *) Add support for key derivation (agreement) in the API, DH method and
63 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
64 public and private key formats. As a side effect these add additional
65 command line functionality not previously available: DSA signatures can be
66 generated and verified using pkeyutl and DH key support and generation in
71 [Oliver Tappe <zooey@hirschkaefer.de>]
73 *) New make target "install_html_docs" installs HTML renditions of the
75 [Oliver Tappe <zooey@hirschkaefer.de>]
77 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
78 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
79 support key and parameter generation and add initial key generation
80 functionality for RSA.
83 *) Add functions for main EVP_PKEY_method operations. The undocumented
84 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
85 EVP_PKEY_{encrypt,decrypt}_old.
88 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
89 key API, doesn't do much yet.
92 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
93 public key algorithms. New option to openssl utility:
94 "list-public-key-algorithms" to print out info.
97 *) Implement the Supported Elliptic Curves Extension for
98 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
101 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
102 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
105 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
106 utilities such as rsa, dsa, dsaparam etc except they process any key
110 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
111 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
112 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
116 *) Initial support for pluggable public key ASN1.
117 De-spaghettify the public key ASN1 handling. Move public and private
118 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
119 algorithm specific handling to a single module within the relevant
120 algorithm directory. Add functions to allow (near) opaque processing
121 of public and private key structures.
124 *) Implement the Supported Point Formats Extension for
125 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
128 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
129 for the psk identity [hint] and the psk callback functions to the
130 SSL_SESSION, SSL and SSL_CTX structure.
133 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
137 SSL_CTX_use_psk_identity_hint
138 SSL_get_psk_identity_hint
140 SSL_use_psk_identity_hint
142 [Mika Kousa and Pasi Eronen of Nokia Corporation]
144 *) Add RFC 3161 compliant time stamp request creation, response generation
145 and response verification functionality.
146 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
148 *) Add initial support for TLS extensions, specifically for the server_name
149 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
150 have new members for a host name. The SSL data structure has an
151 additional member SSL_CTX *initial_ctx so that new sessions can be
152 stored in that context to allow for session resumption, even after the
153 SSL has been switched to a new SSL_CTX in reaction to a client's
154 server_name extension.
156 New functions (subject to change):
159 SSL_get_servername_type()
162 New CTRL codes and macros (subject to change):
164 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
165 - SSL_CTX_set_tlsext_servername_callback()
166 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
167 - SSL_CTX_set_tlsext_servername_arg()
168 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
170 openssl s_client has a new '-servername ...' option.
172 openssl s_server has new options '-servername_host ...', '-cert2 ...',
173 '-key2 ...', '-servername_fatal' (subject to change). This allows
174 testing the HostName extension for a specific single host name ('-cert'
175 and '-key' remain fallbacks for handshakes without HostName
176 negotiation). If the unrecogninzed_name alert has to be sent, this by
177 default is a warning; it becomes fatal with the '-servername_fatal'
180 [Peter Sylvester, Remy Allais, Christophe Renou]
182 *) Whirlpool hash implementation is added.
185 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
186 bn(64,32). Because of instruction set limitations it doesn't have
187 any negative impact on performance. This was done mostly in order
188 to make it possible to share assembler modules, such as bn_mul_mont
189 implementations, between 32- and 64-bit builds without hassle.
192 *) Disable rogue ciphersuites:
194 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
195 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
196 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
198 The latter two were purportedly from
199 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
202 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
203 remain enabled for now, but are just as unofficial, and the ID
204 has long expired; these will probably disappear soon.
207 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
208 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
212 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
213 dedicated Montgomery multiplication procedure, is introduced.
214 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
215 "64-bit" performance on certain 32-bit targets.
218 *) New option SSL_OP_NO_COMP to disable use of compression selectively
219 in SSL structures. New SSL ctrl to set maximum send fragment size.
220 Save memory by seeting the I/O buffer sizes dynamically instead of
221 using the maximum available value.
224 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
225 in addition to the text details.
228 *) Very, very preliminary EXPERIMENTAL support for printing of general
229 ASN1 structures. This currently produces rather ugly output and doesn't
230 handle several customised structures at all.
233 *) Integrated support for PVK file format and some related formats such
234 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
235 these in the 'rsa' and 'dsa' utilities.
238 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
241 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
242 place for the (very old) "NETSCAPE" format certificates which are now
243 handled using new ASN1 code equivalents.
246 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
247 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
248 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
251 *) Modify CRL distribution points extension code to print out previously
252 unsupported fields. Enhance extension setting code to allow setting of
256 *) Add print and set support for Issuing Distribution Point CRL extension.
259 Changes between 0.9.8b and 0.9.8c [xx XXX xxxx]
261 *) Disable the padding bug check when compression is in use. The padding
262 bug check assumes the first packet is of even length, this is not
263 necessarily true if compresssion is enabled and can result in false
264 positives causing handshake failure. The actual bug test is ancient
265 code so it is hoped that implementations will either have fixed it by
266 now or any which still have the bug do not support compression.
269 Changes between 0.9.8a and 0.9.8b [04 May 2006]
271 *) When applying a cipher rule check to see if string match is an explicit
272 cipher suite and only match that one cipher suite if it is.
275 *) Link in manifests for VC++ if needed.
276 [Austin Ziegler <halostatue@gmail.com>]
278 *) Update support for ECC-based TLS ciphersuites according to
279 draft-ietf-tls-ecc-12.txt with proposed changes (but without
280 TLS extensions, which are supported starting with the 0.9.9
281 branch, not in the OpenSSL 0.9.8 branch).
284 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
285 opaque EVP_CIPHER_CTX handling.
288 *) Fixes and enhancements to zlib compression code. We now only use
289 "zlib1.dll" and use the default __cdecl calling convention on Win32
290 to conform with the standards mentioned here:
291 http://www.zlib.net/DLL_FAQ.txt
292 Static zlib linking now works on Windows and the new --with-zlib-include
293 --with-zlib-lib options to Configure can be used to supply the location
294 of the headers and library. Gracefully handle case where zlib library
298 *) Several fixes and enhancements to the OID generation code. The old code
299 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
300 handle numbers larger than ULONG_MAX, truncated printing and had a
301 non standard OBJ_obj2txt() behaviour.
304 *) Add support for building of engines under engine/ as shared libraries
305 under VC++ build system.
308 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
309 Hopefully, we will not see any false combination of paths any more.
312 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
314 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
315 (part of SSL_OP_ALL). This option used to disable the
316 countermeasure against man-in-the-middle protocol-version
317 rollback in the SSL 2.0 server implementation, which is a bad
318 idea. (CVE-2005-2969)
320 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
321 for Information Security, National Institute of Advanced Industrial
322 Science and Technology [AIST], Japan)]
324 *) Add two function to clear and return the verify parameter flags.
327 *) Keep cipherlists sorted in the source instead of sorting them at
328 runtime, thus removing the need for a lock.
331 *) Avoid some small subgroup attacks in Diffie-Hellman.
332 [Nick Mathewson and Ben Laurie]
334 *) Add functions for well-known primes.
337 *) Extended Windows CE support.
338 [Satoshi Nakamura and Andy Polyakov]
340 *) Initialize SSL_METHOD structures at compile time instead of during
341 runtime, thus removing the need for a lock.
344 *) Make PKCS7_decrypt() work even if no certificate is supplied by
345 attempting to decrypt each encrypted key in turn. Add support to
349 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
351 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
354 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
355 key into the same file any more.
358 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
361 *) Add -utf8 command line and config file option to 'ca'.
362 [Stefan <stf@udoma.org]
364 *) Removed the macro des_crypt(), as it seems to conflict with some
365 libraries. Use DES_crypt().
368 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
369 involves renaming the source and generated shared-libs for
370 both. The engines will accept the corrected or legacy ids
371 ('ncipher' and '4758_cca' respectively) when binding. NB,
372 this only applies when building 'shared'.
373 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
375 *) Add attribute functions to EVP_PKEY structure. Modify
376 PKCS12_create() to recognize a CSP name attribute and
377 use it. Make -CSP option work again in pkcs12 utility.
380 *) Add new functionality to the bn blinding code:
381 - automatic re-creation of the BN_BLINDING parameters after
382 a fixed number of uses (currently 32)
383 - add new function for parameter creation
384 - introduce flags to control the update behaviour of the
385 BN_BLINDING parameters
386 - hide BN_BLINDING structure
387 Add a second BN_BLINDING slot to the RSA structure to improve
388 performance when a single RSA object is shared among several
392 *) Add support for DTLS.
393 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
395 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
396 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
399 *) Remove buggy and incompletet DH cert support from
400 ssl/ssl_rsa.c and ssl/s3_both.c
403 *) Use SHA-1 instead of MD5 as the default digest algorithm for
404 the apps/openssl applications.
407 *) Compile clean with "-Wall -Wmissing-prototypes
408 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
409 DEBUG_SAFESTACK must also be set.
412 *) Change ./Configure so that certain algorithms can be disabled by default.
413 The new counterpiece to "no-xxx" is "enable-xxx".
415 The patented RC5 and MDC2 algorithms will now be disabled unless
416 "enable-rc5" and "enable-mdc2", respectively, are specified.
418 (IDEA remains enabled despite being patented. This is because IDEA
419 is frequently required for interoperability, and there is no license
420 fee for non-commercial use. As before, "no-idea" can be used to
421 avoid this algorithm.)
425 *) Add processing of proxy certificates (see RFC 3820). This work was
426 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
427 EGEE (Enabling Grids for E-science in Europe).
430 *) RC4 performance overhaul on modern architectures/implementations, such
431 as Intel P4, IA-64 and AMD64.
434 *) New utility extract-section.pl. This can be used specify an alternative
435 section number in a pod file instead of having to treat each file as
436 a separate case in Makefile. This can be done by adding two lines to the
439 =for comment openssl_section:XXX
441 The blank line is mandatory.
445 *) New arguments -certform, -keyform and -pass for s_client and s_server
446 to allow alternative format key and certificate files and passphrase
450 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
451 update associated structures and add various utility functions.
453 Add new policy related verify parameters, include policy checking in
454 standard verify code. Enhance 'smime' application with extra parameters
455 to support policy checking and print out.
458 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
459 Nehemiah processors. These extensions support AES encryption in hardware
460 as well as RNG (though RNG support is currently disabled).
461 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
463 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
466 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
467 [Andy Polyakov and a number of other people]
469 *) Improved PowerPC platform support. Most notably BIGNUM assembler
470 implementation contributed by IBM.
471 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
473 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
474 exponent rather than 'unsigned long'. There is a corresponding change to
475 the new 'rsa_keygen' element of the RSA_METHOD structure.
476 [Jelte Jansen, Geoff Thorpe]
478 *) Functionality for creating the initial serial number file is now
479 moved from CA.pl to the 'ca' utility with a new option -create_serial.
481 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
482 number file to 1, which is bound to cause problems. To avoid
483 the problems while respecting compatibility between different 0.9.7
484 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
485 CA.pl for serial number initialization. With the new release 0.9.8,
486 we can fix the problem directly in the 'ca' utility.)
489 *) Reduced header interdepencies by declaring more opaque objects in
490 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
491 give fewer recursive includes, which could break lazy source code - so
492 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
493 developers should define this symbol when building and using openssl to
494 ensure they track the recommended behaviour, interfaces, [etc], but
495 backwards-compatible behaviour prevails when this isn't defined.
498 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
501 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
502 This will generate a random key of the appropriate length based on the
503 cipher context. The EVP_CIPHER can provide its own random key generation
504 routine to support keys of a specific form. This is used in the des and
505 3des routines to generate a key of the correct parity. Update S/MIME
506 code to use new functions and hence generate correct parity DES keys.
507 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
508 valid (weak or incorrect parity).
511 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
512 as looking them up. This is useful when the verified structure may contain
513 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
514 present unless the new PKCS7_NO_CRL flag is asserted.
517 *) Extend ASN1 oid configuration module. It now additionally accepts the
520 shortName = some long name, 1.2.3.4
523 *) Reimplemented the BN_CTX implementation. There is now no more static
524 limitation on the number of variables it can handle nor the depth of the
525 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
526 information can now expand as required, and rather than having a single
527 static array of bignums, BN_CTX now uses a linked-list of such arrays
528 allowing it to expand on demand whilst maintaining the usefulness of
532 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
533 to allow all RSA operations to function using a single BN_CTX.
536 *) Preliminary support for certificate policy evaluation and checking. This
537 is initially intended to pass the tests outlined in "Conformance Testing
538 of Relying Party Client Certificate Path Processing Logic" v1.07.
541 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
542 remained unused and not that useful. A variety of other little bignum
543 tweaks and fixes have also been made continuing on from the audit (see
547 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
548 associated ASN1, EVP and SSL functions and old ASN1 macros.
551 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
552 and this should never fail. So the return value from the use of
553 BN_set_word() (which can fail due to needless expansion) is now deprecated;
554 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
557 *) BN_CTX_get() should return zero-valued bignums, providing the same
558 initialised value as BN_new().
559 [Geoff Thorpe, suggested by Ulf Möller]
561 *) Support for inhibitAnyPolicy certificate extension.
564 *) An audit of the BIGNUM code is underway, for which debugging code is
565 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
566 is considered valid when processing BIGNUMs, and causes execution to
567 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
568 further steps are taken to deliberately pollute unused data in BIGNUM
569 structures to try and expose faulty code further on. For now, openssl will
570 (in its default mode of operation) continue to tolerate the inconsistent
571 forms that it has tolerated in the past, but authors and packagers should
572 consider trying openssl and their own applications when compiled with
573 these debugging symbols defined. It will help highlight potential bugs in
574 their own code, and will improve the test coverage for OpenSSL itself. At
575 some point, these tighter rules will become openssl's default to improve
576 maintainability, though the assert()s and other overheads will remain only
577 in debugging configurations. See bn.h for more details.
578 [Geoff Thorpe, Nils Larsch, Ulf Möller]
580 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
581 that can only be obtained through BN_CTX_new() (which implicitly
582 initialises it). The presence of this function only made it possible
583 to overwrite an existing structure (and cause memory leaks).
586 *) Because of the callback-based approach for implementing LHASH as a
587 template type, lh_insert() adds opaque objects to hash-tables and
588 lh_doall() or lh_doall_arg() are typically used with a destructor callback
589 to clean up those corresponding objects before destroying the hash table
590 (and losing the object pointers). So some over-zealous constifications in
591 LHASH have been relaxed so that lh_insert() does not take (nor store) the
592 objects as "const" and the lh_doall[_arg] callback wrappers are not
593 prototyped to have "const" restrictions on the object pointers they are
594 given (and so aren't required to cast them away any more).
597 *) The tmdiff.h API was so ugly and minimal that our own timing utility
598 (speed) prefers to use its own implementation. The two implementations
599 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
600 its object type properly exposed (MS_TM) instead of casting to/from "char
601 *". This may still change yet if someone realises MS_TM and "ms_time_***"
602 aren't necessarily the greatest nomenclatures - but this is what was used
603 internally to the implementation so I've used that for now.
606 *) Ensure that deprecated functions do not get compiled when
607 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
608 the self-tests were still using deprecated key-generation functions so
609 these have been updated also.
612 *) Reorganise PKCS#7 code to separate the digest location functionality
613 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
614 New function PKCS7_set_digest() to set the digest type for PKCS#7
615 digestedData type. Add additional code to correctly generate the
616 digestedData type and add support for this type in PKCS7 initialization
620 *) New function PKCS7_set0_type_other() this initializes a PKCS7
621 structure of type "other".
624 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
625 sure the loop does correctly stop and breaking ("division by zero")
626 modulus operations are not performed. The (pre-generated) prime
627 table crypto/bn/bn_prime.h was already correct, but it could not be
628 re-generated on some platforms because of the "division by zero"
629 situation in the script.
630 [Ralf S. Engelschall]
632 *) Update support for ECC-based TLS ciphersuites according to
633 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
634 SHA-1 now is only used for "small" curves (where the
635 representation of a field element takes up to 24 bytes); for
636 larger curves, the field element resulting from ECDH is directly
637 used as premaster secret.
638 [Douglas Stebila (Sun Microsystems Laboratories)]
640 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
641 curve secp160r1 to the tests.
642 [Douglas Stebila (Sun Microsystems Laboratories)]
644 *) Add the possibility to load symbols globally with DSO.
645 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
647 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
648 control of the error stack.
651 *) Add support for STORE in ENGINE.
654 *) Add the STORE type. The intention is to provide a common interface
655 to certificate and key stores, be they simple file-based stores, or
656 HSM-type store, or LDAP stores, or...
657 NOTE: The code is currently UNTESTED and isn't really used anywhere.
660 *) Add a generic structure called OPENSSL_ITEM. This can be used to
661 pass a list of arguments to any function as well as provide a way
662 for a function to pass data back to the caller.
665 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
666 works like BUF_strdup() but can be used to duplicate a portion of
667 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
671 *) Add the function sk_find_ex() which works like sk_find(), but will
672 return an index to an element even if an exact match couldn't be
673 found. The index is guaranteed to point at the element where the
674 searched-for key would be inserted to preserve sorting order.
677 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
678 takes an extra flags argument for optional functionality. Currently,
679 the following flags are defined:
681 OBJ_BSEARCH_VALUE_ON_NOMATCH
682 This one gets OBJ_bsearch_ex() to return a pointer to the first
683 element where the comparing function returns a negative or zero
686 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
687 This one gets OBJ_bsearch_ex() to return a pointer to the first
688 element where the comparing function returns zero. This is useful
689 if there are more than one element where the comparing function
693 *) Make it possible to create self-signed certificates with 'openssl ca'
694 in such a way that the self-signed certificate becomes part of the
695 CA database and uses the same mechanisms for serial number generation
696 as all other certificate signing. The new flag '-selfsign' enables
697 this functionality. Adapt CA.sh and CA.pl.in.
700 *) Add functionality to check the public key of a certificate request
701 against a given private. This is useful to check that a certificate
702 request can be signed by that key (self-signing).
705 *) Make it possible to have multiple active certificates with the same
706 subject in the CA index file. This is done only if the keyword
707 'unique_subject' is set to 'no' in the main CA section (default
708 if 'CA_default') of the configuration file. The value is saved
709 with the database itself in a separate index attribute file,
710 named like the index file with '.attr' appended to the name.
713 *) Generate muti valued AVAs using '+' notation in config files for
717 *) Support for nameConstraints certificate extension.
720 *) Support for policyConstraints certificate extension.
723 *) Support for policyMappings certificate extension.
726 *) Make sure the default DSA_METHOD implementation only uses its
727 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
728 and change its own handlers to be NULL so as to remove unnecessary
729 indirection. This lets alternative implementations fallback to the
730 default implementation more easily.
733 *) Support for directoryName in GeneralName related extensions
737 *) Make it possible to link applications using Makefile.shared.
738 Make that possible even when linking against static libraries!
741 *) Support for single pass processing for S/MIME signing. This now
742 means that S/MIME signing can be done from a pipe, in addition
743 cleartext signing (multipart/signed type) is effectively streaming
744 and the signed data does not need to be all held in memory.
746 This is done with a new flag PKCS7_STREAM. When this flag is set
747 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
748 is done after the data is output (and digests calculated) in
752 *) Add full support for -rpath/-R, both in shared libraries and
753 applications, at least on the platforms where it's known how
757 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
758 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
759 will now compute a table of multiples of the generator that
760 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
761 faster (notably in the case of a single point multiplication,
763 [Nils Larsch, Bodo Moeller]
765 *) IPv6 support for certificate extensions. The various extensions
766 which use the IP:a.b.c.d can now take IPv6 addresses using the
767 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
771 *) Added an ENGINE that implements RSA by performing private key
772 exponentiations with the GMP library. The conversions to and from
773 GMP's mpz_t format aren't optimised nor are any montgomery forms
774 cached, and on x86 it appears OpenSSL's own performance has caught up.
775 However there are likely to be other architectures where GMP could
776 provide a boost. This ENGINE is not built in by default, but it can be
777 specified at Configure time and should be accompanied by the necessary
778 linker additions, eg;
779 ./config -DOPENSSL_USE_GMP -lgmp
782 *) "openssl engine" will not display ENGINE/DSO load failure errors when
783 testing availability of engines with "-t" - the old behaviour is
784 produced by increasing the feature's verbosity with "-tt".
787 *) ECDSA routines: under certain error conditions uninitialized BN objects
788 could be freed. Solution: make sure initialization is performed early
789 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
793 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
794 and DH_METHOD (eg. by ENGINE implementations) to override the normal
795 software implementations. For DSA and DH, parameter generation can
796 also be overriden by providing the appropriate method callbacks.
799 *) Change the "progress" mechanism used in key-generation and
800 primality testing to functions that take a new BN_GENCB pointer in
801 place of callback/argument pairs. The new API functions have "_ex"
802 postfixes and the older functions are reimplemented as wrappers for
803 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
804 declarations of the old functions to help (graceful) attempts to
805 migrate to the new functions. Also, the new key-generation API
806 functions operate on a caller-supplied key-structure and return
807 success/failure rather than returning a key or NULL - this is to
808 help make "keygen" another member function of RSA_METHOD etc.
810 Example for using the new callback interface:
812 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
816 BN_GENCB_set(&my_cb, my_callback, my_arg);
818 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
819 /* For the meaning of a, b in calls to my_callback(), see the
820 * documentation of the function that calls the callback.
821 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
822 * my_callback should return 1 if it wants BN_is_prime_ex()
823 * to continue, or 0 to stop.
828 *) Change the ZLIB compression method to be stateful, and make it
829 available to TLS with the number defined in
830 draft-ietf-tls-compression-04.txt.
833 *) Add the ASN.1 structures and functions for CertificatePair, which
834 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
836 CertificatePair ::= SEQUENCE {
837 forward [0] Certificate OPTIONAL,
838 reverse [1] Certificate OPTIONAL,
839 -- at least one of the pair shall be present -- }
841 Also implement the PEM functions to read and write certificate
842 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
844 This needed to be defined, mostly for the sake of the LDAP
845 attribute crossCertificatePair, but may prove useful elsewhere as
849 *) Make it possible to inhibit symlinking of shared libraries in
850 Makefile.shared, for Cygwin's sake.
853 *) Extend the BIGNUM API by creating a function
854 void BN_set_negative(BIGNUM *a, int neg);
855 and a macro that behave like
856 int BN_is_negative(const BIGNUM *a);
858 to avoid the need to access 'a->neg' directly in applications.
861 *) Implement fast modular reduction for pseudo-Mersenne primes
862 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
863 EC_GROUP_new_curve_GFp() will now automatically use this
865 [Nils Larsch <nla@trustcenter.de>]
867 *) Add new lock type (CRYPTO_LOCK_BN).
870 *) Change the ENGINE framework to automatically load engines
871 dynamically from specific directories unless they could be
872 found to already be built in or loaded. Move all the
873 current engines except for the cryptodev one to a new
875 The engines in engines/ are built as shared libraries if
876 the "shared" options was given to ./Configure or ./config.
877 Otherwise, they are inserted in libcrypto.a.
878 /usr/local/ssl/engines is the default directory for dynamic
879 engines, but that can be overriden at configure time through
880 the usual use of --prefix and/or --openssldir, and at run
881 time with the environment variable OPENSSL_ENGINES.
882 [Geoff Thorpe and Richard Levitte]
884 *) Add Makefile.shared, a helper makefile to build shared
885 libraries. Addapt Makefile.org.
888 *) Add version info to Win32 DLLs.
889 [Peter 'Luna' Runestig" <peter@runestig.com>]
891 *) Add new 'medium level' PKCS#12 API. Certificates and keys
892 can be added using this API to created arbitrary PKCS#12
893 files while avoiding the low level API.
895 New options to PKCS12_create(), key or cert can be NULL and
896 will then be omitted from the output file. The encryption
897 algorithm NIDs can be set to -1 for no encryption, the mac
898 iteration count can be set to 0 to omit the mac.
900 Enhance pkcs12 utility by making the -nokeys and -nocerts
901 options work when creating a PKCS#12 file. New option -nomac
902 to omit the mac, NONE can be set for an encryption algorithm.
903 New code is modified to use the enhanced PKCS12_create()
904 instead of the low level API.
907 *) Extend ASN1 encoder to support indefinite length constructed
908 encoding. This can output sequences tags and octet strings in
909 this form. Modify pk7_asn1.c to support indefinite length
910 encoding. This is experimental and needs additional code to
911 be useful, such as an ASN1 bio and some enhanced streaming
914 Extend template encode functionality so that tagging is passed
915 down to the template encoder.
918 *) Let 'openssl req' fail if an argument to '-newkey' is not
919 recognized instead of using RSA as a default.
922 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
923 As these are not official, they are not included in "ALL";
924 the "ECCdraft" ciphersuite group alias can be used to select them.
925 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
927 *) Add ECDH engine support.
928 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
930 *) Add ECDH in new directory crypto/ecdh/.
931 [Douglas Stebila (Sun Microsystems Laboratories)]
933 *) Let BN_rand_range() abort with an error after 100 iterations
934 without success (which indicates a broken PRNG).
937 *) Change BN_mod_sqrt() so that it verifies that the input value
938 is really the square of the return value. (Previously,
939 BN_mod_sqrt would show GIGO behaviour.)
942 *) Add named elliptic curves over binary fields from X9.62, SECG,
943 and WAP/WTLS; add OIDs that were still missing.
945 [Sheueling Chang Shantz and Douglas Stebila
946 (Sun Microsystems Laboratories)]
948 *) Extend the EC library for elliptic curves over binary fields
949 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
952 EC_GF2m_simple_method
956 EC_GROUP_new_curve_GF2m
957 EC_GROUP_set_curve_GF2m
958 EC_GROUP_get_curve_GF2m
959 EC_POINT_set_affine_coordinates_GF2m
960 EC_POINT_get_affine_coordinates_GF2m
961 EC_POINT_set_compressed_coordinates_GF2m
963 Point compression for binary fields is disabled by default for
964 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
967 As binary polynomials are represented as BIGNUMs, various members
968 of the EC_GROUP and EC_POINT data structures can be shared
969 between the implementations for prime fields and binary fields;
970 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
971 are essentially identical to their ..._GFp counterparts.
972 (For simplicity, the '..._GFp' prefix has been dropped from
973 various internal method names.)
975 An internal 'field_div' method (similar to 'field_mul' and
976 'field_sqr') has been added; this is used only for binary fields.
978 [Sheueling Chang Shantz and Douglas Stebila
979 (Sun Microsystems Laboratories)]
981 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
982 through methods ('mul', 'precompute_mult').
984 The generic implementations (now internally called 'ec_wNAF_mul'
985 and 'ec_wNAF_precomputed_mult') remain the default if these
986 methods are undefined.
988 [Sheueling Chang Shantz and Douglas Stebila
989 (Sun Microsystems Laboratories)]
991 *) New function EC_GROUP_get_degree, which is defined through
992 EC_METHOD. For curves over prime fields, this returns the bit
993 length of the modulus.
995 [Sheueling Chang Shantz and Douglas Stebila
996 (Sun Microsystems Laboratories)]
998 *) New functions EC_GROUP_dup, EC_POINT_dup.
999 (These simply call ..._new and ..._copy).
1001 [Sheueling Chang Shantz and Douglas Stebila
1002 (Sun Microsystems Laboratories)]
1004 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1005 Polynomials are represented as BIGNUMs (where the sign bit is not
1006 used) in the following functions [macros]:
1009 BN_GF2m_sub [= BN_GF2m_add]
1010 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1011 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1012 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1014 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1015 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1016 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1017 BN_GF2m_cmp [= BN_ucmp]
1019 (Note that only the 'mod' functions are actually for fields GF(2^m).
1020 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1022 For some functions, an the irreducible polynomial defining a
1023 field can be given as an 'unsigned int[]' with strictly
1024 decreasing elements giving the indices of those bits that are set;
1025 i.e., p[] represents the polynomial
1026 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1028 p[0] > p[1] > ... > p[k] = 0.
1029 This applies to the following functions:
1034 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1035 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1037 BN_GF2m_mod_sqrt_arr
1038 BN_GF2m_mod_solve_quad_arr
1042 Conversion can be performed by the following functions:
1047 bntest.c has additional tests for binary polynomial arithmetic.
1049 Two implementations for BN_GF2m_mod_div() are available.
1050 The default algorithm simply uses BN_GF2m_mod_inv() and
1051 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1052 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1053 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1055 [Sheueling Chang Shantz and Douglas Stebila
1056 (Sun Microsystems Laboratories)]
1058 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1059 functionality is disabled at compile-time.
1060 [Douglas Stebila <douglas.stebila@sun.com>]
1062 *) Change default behaviour of 'openssl asn1parse' so that more
1063 information is visible when viewing, e.g., a certificate:
1065 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1066 mode the content of non-printable OCTET STRINGs is output in a
1067 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1068 avoid the appearance of a printable string.
1069 [Nils Larsch <nla@trustcenter.de>]
1071 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1073 EC_GROUP_set_asn1_flag()
1074 EC_GROUP_get_asn1_flag()
1075 EC_GROUP_set_point_conversion_form()
1076 EC_GROUP_get_point_conversion_form()
1077 These control ASN1 encoding details:
1078 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1079 has been set to OPENSSL_EC_NAMED_CURVE.
1080 - Points are encoded in uncompressed form by default; options for
1081 asn1_for are as for point2oct, namely
1082 POINT_CONVERSION_COMPRESSED
1083 POINT_CONVERSION_UNCOMPRESSED
1084 POINT_CONVERSION_HYBRID
1086 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1089 EC_GROUP_get0_seed()
1090 EC_GROUP_get_seed_len()
1091 This is used only for ASN1 purposes (so far).
1092 [Nils Larsch <nla@trustcenter.de>]
1094 *) Add 'field_type' member to EC_METHOD, which holds the NID
1095 of the appropriate field type OID. The new function
1096 EC_METHOD_get_field_type() returns this value.
1097 [Nils Larsch <nla@trustcenter.de>]
1102 EC_POINT_point2hex()
1103 EC_POINT_hex2point()
1104 providing useful interfaces to EC_POINT_point2oct() and
1105 EC_POINT_oct2point().
1106 [Nils Larsch <nla@trustcenter.de>]
1108 *) Change internals of the EC library so that the functions
1109 EC_GROUP_set_generator()
1110 EC_GROUP_get_generator()
1111 EC_GROUP_get_order()
1112 EC_GROUP_get_cofactor()
1113 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1114 to methods, which would lead to unnecessary code duplication when
1115 adding different types of curves.
1116 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1118 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1119 arithmetic, and such that modified wNAFs are generated
1120 (which avoid length expansion in many cases).
1123 *) Add a function EC_GROUP_check_discriminant() (defined via
1124 EC_METHOD) that verifies that the curve discriminant is non-zero.
1126 Add a function EC_GROUP_check() that makes some sanity tests
1127 on a EC_GROUP, its generator and order. This includes
1128 EC_GROUP_check_discriminant().
1129 [Nils Larsch <nla@trustcenter.de>]
1131 *) Add ECDSA in new directory crypto/ecdsa/.
1133 Add applications 'openssl ecparam' and 'openssl ecdsa'
1134 (these are based on 'openssl dsaparam' and 'openssl dsa').
1136 ECDSA support is also included in various other files across the
1137 library. Most notably,
1138 - 'openssl req' now has a '-newkey ecdsa:file' option;
1139 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1140 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1141 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1142 them suitable for ECDSA where domain parameters must be
1143 extracted before the specific public key;
1144 - ECDSA engine support has been added.
1145 [Nils Larsch <nla@trustcenter.de>]
1147 *) Include some named elliptic curves, and add OIDs from X9.62,
1148 SECG, and WAP/WTLS. Each curve can be obtained from the new
1150 EC_GROUP_new_by_curve_name(),
1151 and the list of available named curves can be obtained with
1152 EC_get_builtin_curves().
1153 Also add a 'curve_name' member to EC_GROUP objects, which can be
1155 EC_GROUP_set_curve_name()
1156 EC_GROUP_get_curve_name()
1157 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1159 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1160 was actually never needed) and in BN_mul(). The removal in BN_mul()
1161 required a small change in bn_mul_part_recursive() and the addition
1162 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1163 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1164 bn_sub_words() and bn_add_words() except they take arrays with
1168 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1170 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1171 The value now differs depending on if you build for FIPS or not.
1172 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1173 safely run with a non-FIPSed libcrypto, as it may crash because of
1174 the difference induced by this change.
1177 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1179 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1180 (part of SSL_OP_ALL). This option used to disable the
1181 countermeasure against man-in-the-middle protocol-version
1182 rollback in the SSL 2.0 server implementation, which is a bad
1183 idea. (CVE-2005-2969)
1185 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1186 for Information Security, National Institute of Advanced Industrial
1187 Science and Technology [AIST], Japan)]
1189 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1190 mainly for FIPS compliance and not fully integrated at this stage.
1193 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1194 the exponentiation using a fixed-length exponent. (Otherwise,
1195 the information leaked through timing could expose the secret key
1196 after many signatures; cf. Bleichenbacher's attack on DSA with
1200 *) Make a new fixed-window mod_exp implementation the default for
1201 RSA, DSA, and DH private-key operations so that the sequence of
1202 squares and multiplies and the memory access pattern are
1203 independent of the particular secret key. This will mitigate
1204 cache-timing and potential related attacks.
1206 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1207 and this is automatically used by BN_mod_exp_mont() if the new flag
1208 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1209 will use this BN flag for private exponents unless the flag
1210 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1211 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1213 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1215 *) Change the client implementation for SSLv23_method() and
1216 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1217 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1218 (Previously, the SSL 2.0 backwards compatible Client Hello
1219 message format would be used even with SSL_OP_NO_SSLv2.)
1222 *) Add support for smime-type MIME parameter in S/MIME messages which some
1226 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1227 a threadsafe manner. Modify rsa code to use new function and add calls
1228 to dsa and dh code (which had race conditions before).
1231 *) Include the fixed error library code in the C error file definitions
1232 instead of fixing them up at runtime. This keeps the error code
1233 structures constant.
1236 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1238 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1241 *) Fixes for newer kerberos headers. NB: the casts are needed because
1242 the 'length' field is signed on one version and unsigned on another
1243 with no (?) obvious way to tell the difference, without these VC++
1244 complains. Also the "definition" of FAR (blank) is no longer included
1245 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1246 some needed definitions.
1249 *) Undo Cygwin change.
1252 *) Added support for proxy certificates according to RFC 3820.
1253 Because they may be a security thread to unaware applications,
1254 they must be explicitely allowed in run-time. See
1255 docs/HOWTO/proxy_certificates.txt for further information.
1258 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1260 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1261 server and client random values. Previously
1262 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1263 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1265 This change has negligible security impact because:
1267 1. Server and client random values still have 24 bytes of pseudo random
1270 2. Server and client random values are sent in the clear in the initial
1273 3. The master secret is derived using the premaster secret (48 bytes in
1274 size for static RSA ciphersuites) as well as client server and random
1277 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1280 [Stephen Henson, reported by UK NISCC]
1282 *) Use Windows randomness collection on Cygwin.
1285 *) Fix hang in EGD/PRNGD query when communication socket is closed
1286 prematurely by EGD/PRNGD.
1287 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1289 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1292 *) Back-port of selected performance improvements from development
1293 branch, as well as improved support for PowerPC platforms.
1296 *) Add lots of checks for memory allocation failure, error codes to indicate
1297 failure and freeing up memory if a failure occurs.
1298 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1300 *) Add new -passin argument to dgst.
1303 *) Perform some character comparisons of different types in X509_NAME_cmp:
1304 this is needed for some certificates that reencode DNs into UTF8Strings
1305 (in violation of RFC3280) and can't or wont issue name rollover
1309 *) Make an explicit check during certificate validation to see that
1310 the CA setting in each certificate on the chain is correct. As a
1311 side effect always do the following basic checks on extensions,
1312 not just when there's an associated purpose to the check:
1314 - if there is an unhandled critical extension (unless the user
1315 has chosen to ignore this fault)
1316 - if the path length has been exceeded (if one is set at all)
1317 - that certain extensions fit the associated purpose (if one has
1321 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1323 *) Avoid a race condition when CRLs are checked in a multi threaded
1324 environment. This would happen due to the reordering of the revoked
1325 entries during signature checking and serial number lookup. Now the
1326 encoding is cached and the serial number sort performed under a lock.
1327 Add new STACK function sk_is_sorted().
1330 *) Add Delta CRL to the extension code.
1333 *) Various fixes to s3_pkt.c so alerts are sent properly.
1334 [David Holmes <d.holmes@f5.com>]
1336 *) Reduce the chances of duplicate issuer name and serial numbers (in
1337 violation of RFC3280) using the OpenSSL certificate creation utilities.
1338 This is done by creating a random 64 bit value for the initial serial
1339 number when a serial number file is created or when a self signed
1340 certificate is created using 'openssl req -x509'. The initial serial
1341 number file is created using 'openssl x509 -next_serial' in CA.pl
1342 rather than being initialized to 1.
1345 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1347 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1348 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1349 [Joe Orton, Steve Henson]
1351 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1353 [Joe Orton, Steve Henson]
1355 *) Make it possible to have multiple active certificates with the same
1356 subject in the CA index file. This is done only if the keyword
1357 'unique_subject' is set to 'no' in the main CA section (default
1358 if 'CA_default') of the configuration file. The value is saved
1359 with the database itself in a separate index attribute file,
1360 named like the index file with '.attr' appended to the name.
1363 *) X509 verify fixes. Disable broken certificate workarounds when
1364 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1365 keyUsage extension present. Don't accept CRLs with unhandled critical
1366 extensions: since verify currently doesn't process CRL extensions this
1367 rejects a CRL with *any* critical extensions. Add new verify error codes
1371 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1372 A clarification of RFC2560 will require the use of OCTET STRINGs and
1373 some implementations cannot handle the current raw format. Since OpenSSL
1374 copies and compares OCSP nonces as opaque blobs without any attempt at
1375 parsing them this should not create any compatibility issues.
1378 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1379 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1380 this HMAC (and other) operations are several times slower than OpenSSL
1384 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1385 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1387 *) Use the correct content when signing type "other".
1390 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1392 *) Fix various bugs revealed by running the NISCC test suite:
1394 Stop out of bounds reads in the ASN1 code when presented with
1395 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1397 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1399 If verify callback ignores invalid public key errors don't try to check
1400 certificate signature with the NULL public key.
1404 *) New -ignore_err option in ocsp application to stop the server
1405 exiting on the first error in a request.
1408 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1409 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1413 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1414 extra data after the compression methods not only for TLS 1.0
1415 but also for SSL 3.0 (as required by the specification).
1416 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1418 *) Change X509_certificate_type() to mark the key as exported/exportable
1419 when it's 512 *bits* long, not 512 bytes.
1422 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1423 blocks during encryption.
1426 *) Various fixes to base64 BIO and non blocking I/O. On write
1427 flushes were not handled properly if the BIO retried. On read
1428 data was not being buffered properly and had various logic bugs.
1429 This also affects blocking I/O when the data being decoded is a
1433 *) Various S/MIME bugfixes and compatibility changes:
1434 output correct application/pkcs7 MIME type if
1435 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1436 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1437 of files as .eml work). Correctly handle very long lines in MIME
1441 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1443 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1444 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1445 a protocol version number mismatch like a decryption error
1446 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1449 *) Turn on RSA blinding by default in the default implementation
1450 to avoid a timing attack. Applications that don't want it can call
1451 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1452 They would be ill-advised to do so in most cases.
1453 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1455 *) Change RSA blinding code so that it works when the PRNG is not
1456 seeded (in this case, the secret RSA exponent is abused as
1457 an unpredictable seed -- if it is not unpredictable, there
1458 is no point in blinding anyway). Make RSA blinding thread-safe
1459 by remembering the creator's thread ID in rsa->blinding and
1460 having all other threads use local one-time blinding factors
1461 (this requires more computation than sharing rsa->blinding, but
1462 avoids excessive locking; and if an RSA object is not shared
1463 between threads, blinding will still be very fast).
1466 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1467 ENGINE as defaults for all supported algorithms irrespective of
1468 the 'flags' parameter. 'flags' is now honoured, so applications
1469 should make sure they are passing it correctly.
1472 *) Target "mingw" now allows native Windows code to be generated in
1473 the Cygwin environment as well as with the MinGW compiler.
1476 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1478 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1479 via timing by performing a MAC computation even if incorrrect
1480 block cipher padding has been found. This is a countermeasure
1481 against active attacks where the attacker has to distinguish
1482 between bad padding and a MAC verification error. (CVE-2003-0078)
1484 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1485 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1486 Martin Vuagnoux (EPFL, Ilion)]
1488 *) Make the no-err option work as intended. The intention with no-err
1489 is not to have the whole error stack handling routines removed from
1490 libcrypto, it's only intended to remove all the function name and
1491 reason texts, thereby removing some of the footprint that may not
1492 be interesting if those errors aren't displayed anyway.
1494 NOTE: it's still possible for any application or module to have it's
1495 own set of error texts inserted. The routines are there, just not
1496 used by default when no-err is given.
1499 *) Add support for FreeBSD on IA64.
1500 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1502 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1503 Kerberos function mit_des_cbc_cksum(). Before this change,
1504 the value returned by DES_cbc_cksum() was like the one from
1505 mit_des_cbc_cksum(), except the bytes were swapped.
1506 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1508 *) Allow an application to disable the automatic SSL chain building.
1509 Before this a rather primitive chain build was always performed in
1510 ssl3_output_cert_chain(): an application had no way to send the
1511 correct chain if the automatic operation produced an incorrect result.
1513 Now the chain builder is disabled if either:
1515 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1517 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1519 The reasoning behind this is that an application would not want the
1520 auto chain building to take place if extra chain certificates are
1521 present and it might also want a means of sending no additional
1522 certificates (for example the chain has two certificates and the
1526 *) Add the possibility to build without the ENGINE framework.
1527 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1529 *) Under Win32 gmtime() can return NULL: check return value in
1530 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1533 *) DSA routines: under certain error conditions uninitialized BN objects
1534 could be freed. Solution: make sure initialization is performed early
1535 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1536 Nils Larsch <nla@trustcenter.de> via PR#459)
1539 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1540 checked on reconnect on the client side, therefore session resumption
1541 could still fail with a "ssl session id is different" error. This
1542 behaviour is masked when SSL_OP_ALL is used due to
1543 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1544 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1545 followup to PR #377.
1548 *) IA-32 assembler support enhancements: unified ELF targets, support
1549 for SCO/Caldera platforms, fix for Cygwin shared build.
1552 *) Add support for FreeBSD on sparc64. As a consequence, support for
1553 FreeBSD on non-x86 processors is separate from x86 processors on
1554 the config script, much like the NetBSD support.
1555 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1557 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1559 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1562 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1563 code (06) was taken as the first octet of the session ID and the last
1564 octet was ignored consequently. As a result SSLv2 client side session
1565 caching could not have worked due to the session ID mismatch between
1567 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1571 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1572 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1576 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1577 seems that in spite of existing for more than a year, many application
1578 author have done nothing to provide the necessary callbacks, which
1579 means that this particular engine will not work properly anywhere.
1580 This is a very unfortunate situation which forces us, in the name
1581 of usability, to give the hw_ncipher.c a static lock, which is part
1583 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1584 appear in 0.9.8 or later. We EXPECT application authors to have
1585 dealt properly with this when 0.9.8 is released (unless we actually
1586 make such changes in the libcrypto locking code that changes will
1587 have to be made anyway).
1590 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1591 octets have been read, EOF or an error occurs. Without this change
1592 some truncated ASN1 structures will not produce an error.
1595 *) Disable Heimdal support, since it hasn't been fully implemented.
1596 Still give the possibility to force the use of Heimdal, but with
1597 warnings and a request that patches get sent to openssl-dev.
1600 *) Add the VC-CE target, introduce the WINCE sysname, and add
1601 INSTALL.WCE and appropriate conditionals to make it build.
1602 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1604 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1605 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1606 edit numbers of the version.
1607 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1609 *) Introduce safe string copy and catenation functions
1610 (BUF_strlcpy() and BUF_strlcat()).
1611 [Ben Laurie (CHATS) and Richard Levitte]
1613 *) Avoid using fixed-size buffers for one-line DNs.
1614 [Ben Laurie (CHATS)]
1616 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1617 resizing buffers containing secrets, and use where appropriate.
1618 [Ben Laurie (CHATS)]
1620 *) Avoid using fixed size buffers for configuration file location.
1621 [Ben Laurie (CHATS)]
1623 *) Avoid filename truncation for various CA files.
1624 [Ben Laurie (CHATS)]
1626 *) Use sizeof in preference to magic numbers.
1627 [Ben Laurie (CHATS)]
1629 *) Avoid filename truncation in cert requests.
1630 [Ben Laurie (CHATS)]
1632 *) Add assertions to check for (supposedly impossible) buffer
1634 [Ben Laurie (CHATS)]
1636 *) Don't cache truncated DNS entries in the local cache (this could
1637 potentially lead to a spoofing attack).
1638 [Ben Laurie (CHATS)]
1640 *) Fix various buffers to be large enough for hex/decimal
1641 representations in a platform independent manner.
1642 [Ben Laurie (CHATS)]
1644 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1645 resizing buffers containing secrets, and use where appropriate.
1646 [Ben Laurie (CHATS)]
1648 *) Add BIO_indent() to avoid much slightly worrying code to do
1650 [Ben Laurie (CHATS)]
1652 *) Convert sprintf()/BIO_puts() to BIO_printf().
1653 [Ben Laurie (CHATS)]
1655 *) buffer_gets() could terminate with the buffer only half
1657 [Ben Laurie (CHATS)]
1659 *) Add assertions to prevent user-supplied crypto functions from
1660 overflowing internal buffers by having large block sizes, etc.
1661 [Ben Laurie (CHATS)]
1663 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1665 [Ben Laurie (CHATS)]
1667 *) Eliminate unused copy of key in RC4.
1668 [Ben Laurie (CHATS)]
1670 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1671 [Ben Laurie (CHATS)]
1673 *) Fix off-by-one error in EGD path.
1674 [Ben Laurie (CHATS)]
1676 *) If RANDFILE path is too long, ignore instead of truncating.
1677 [Ben Laurie (CHATS)]
1679 *) Eliminate unused and incorrectly sized X.509 structure
1681 [Ben Laurie (CHATS)]
1683 *) Eliminate unused and dangerous function knumber().
1684 [Ben Laurie (CHATS)]
1686 *) Eliminate unused and dangerous structure, KSSL_ERR.
1687 [Ben Laurie (CHATS)]
1689 *) Protect against overlong session ID context length in an encoded
1690 session object. Since these are local, this does not appear to be
1692 [Ben Laurie (CHATS)]
1694 *) Change from security patch (see 0.9.6e below) that did not affect
1695 the 0.9.6 release series:
1697 Remote buffer overflow in SSL3 protocol - an attacker could
1698 supply an oversized master key in Kerberos-enabled versions.
1700 [Ben Laurie (CHATS)]
1702 *) Change the SSL kerb5 codes to match RFC 2712.
1705 *) Make -nameopt work fully for req and add -reqopt switch.
1706 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1708 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1709 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1711 *) Make sure tests can be performed even if the corresponding algorithms
1712 have been removed entirely. This was also the last step to make
1713 OpenSSL compilable with DJGPP under all reasonable conditions.
1714 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1716 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1717 to allow version independent disabling of normally unselected ciphers,
1718 which may be activated as a side-effect of selecting a single cipher.
1720 (E.g., cipher list string "RSA" enables ciphersuites that are left
1721 out of "ALL" because they do not provide symmetric encryption.
1722 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1723 [Lutz Jaenicke, Bodo Moeller]
1725 *) Add appropriate support for separate platform-dependent build
1726 directories. The recommended way to make a platform-dependent
1727 build directory is the following (tested on Linux), maybe with
1730 # Place yourself outside of the OpenSSL source tree. In
1731 # this example, the environment variable OPENSSL_SOURCE
1732 # is assumed to contain the absolute OpenSSL source directory.
1733 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1734 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1735 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1736 mkdir -p `dirname $F`
1737 ln -s $OPENSSL_SOURCE/$F $F
1740 To be absolutely sure not to disturb the source tree, a "make clean"
1741 is a good thing. If it isn't successfull, don't worry about it,
1742 it probably means the source directory is very clean.
1745 *) Make sure any ENGINE control commands make local copies of string
1746 pointers passed to them whenever necessary. Otherwise it is possible
1747 the caller may have overwritten (or deallocated) the original string
1748 data when a later ENGINE operation tries to use the stored values.
1749 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1751 *) Improve diagnostics in file reading and command-line digests.
1752 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1754 *) Add AES modes CFB and OFB to the object database. Correct an
1755 error in AES-CFB decryption.
1758 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1759 allows existing EVP_CIPHER_CTX structures to be reused after
1760 calling EVP_*Final(). This behaviour is used by encryption
1761 BIOs and some applications. This has the side effect that
1762 applications must explicitly clean up cipher contexts with
1763 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1766 *) Check the values of dna and dnb in bn_mul_recursive before calling
1767 bn_mul_comba (a non zero value means the a or b arrays do not contain
1768 n2 elements) and fallback to bn_mul_normal if either is not zero.
1771 *) Fix escaping of non-ASCII characters when using the -subj option
1772 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1775 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1776 form for "surname", serialNumber has no short form.
1777 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1778 therefore remove "mail" short name for "internet 7".
1779 The OID for unique identifiers in X509 certificates is
1780 x500UniqueIdentifier, not uniqueIdentifier.
1781 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1784 *) Add an "init" command to the ENGINE config module and auto initialize
1785 ENGINEs. Without any "init" command the ENGINE will be initialized
1786 after all ctrl commands have been executed on it. If init=1 the
1787 ENGINE is initailized at that point (ctrls before that point are run
1788 on the uninitialized ENGINE and after on the initialized one). If
1789 init=0 then the ENGINE will not be iniatialized at all.
1792 *) Fix the 'app_verify_callback' interface so that the user-defined
1793 argument is actually passed to the callback: In the
1794 SSL_CTX_set_cert_verify_callback() prototype, the callback
1795 declaration has been changed from
1798 int (*cb)(X509_STORE_CTX *,void *);
1799 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1800 i=s->ctx->app_verify_callback(&ctx)
1801 has been changed into
1802 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1804 To update applications using SSL_CTX_set_cert_verify_callback(),
1805 a dummy argument can be added to their callback functions.
1806 [D. K. Smetters <smetters@parc.xerox.com>]
1808 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1809 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1811 *) Add and OPENSSL_LOAD_CONF define which will cause
1812 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1813 This allows older applications to transparently support certain
1814 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1815 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1816 load the config file and OPENSSL_add_all_algorithms_conf() which will
1817 always load it have also been added.
1820 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1821 Adjust NIDs and EVP layer.
1822 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1824 *) Config modules support in openssl utility.
1826 Most commands now load modules from the config file,
1827 though in a few (such as version) this isn't done
1828 because it couldn't be used for anything.
1830 In the case of ca and req the config file used is
1831 the same as the utility itself: that is the -config
1832 command line option can be used to specify an
1836 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1837 use "openssl_conf" if filename is NULL use default openssl config file.
1840 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1841 config section name. Add a new flag to tolerate a missing config file
1842 and move code to CONF_modules_load_file().
1845 *) Support for crypto accelerator cards from Accelerated Encryption
1846 Processing, www.aep.ie. (Use engine 'aep')
1847 The support was copied from 0.9.6c [engine] and adapted/corrected
1848 to work with the new engine framework.
1849 [AEP Inc. and Richard Levitte]
1851 *) Support for SureWare crypto accelerator cards from Baltimore
1852 Technologies. (Use engine 'sureware')
1853 The support was copied from 0.9.6c [engine] and adapted
1854 to work with the new engine framework.
1857 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1858 make the newer ENGINE framework commands for the CHIL engine work.
1859 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1861 *) Make it possible to produce shared libraries on ReliantUNIX.
1862 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1864 *) Add the configuration target debug-linux-ppro.
1865 Make 'openssl rsa' use the general key loading routines
1866 implemented in apps.c, and make those routines able to
1867 handle the key format FORMAT_NETSCAPE and the variant
1869 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1871 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1872 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1874 *) Add -keyform to rsautl, and document -engine.
1875 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1877 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1878 BIO_R_NO_SUCH_FILE error code rather than the generic
1879 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1882 *) Add new functions
1884 ERR_peek_last_error_line
1885 ERR_peek_last_error_line_data.
1886 These are similar to
1889 ERR_peek_error_line_data,
1890 but report on the latest error recorded rather than the first one
1891 still in the error queue.
1892 [Ben Laurie, Bodo Moeller]
1894 *) default_algorithms option in ENGINE config module. This allows things
1896 default_algorithms = ALL
1897 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1900 *) Prelminary ENGINE config module.
1903 *) New experimental application configuration code.
1906 *) Change the AES code to follow the same name structure as all other
1907 symmetric ciphers, and behave the same way. Move everything to
1908 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1909 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1911 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1912 [Ben Laurie and Theo de Raadt]
1914 *) Add option to output public keys in req command.
1915 [Massimiliano Pala madwolf@openca.org]
1917 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1918 (up to about 10% better than before for P-192 and P-224).
1921 *) New functions/macros
1923 SSL_CTX_set_msg_callback(ctx, cb)
1924 SSL_CTX_set_msg_callback_arg(ctx, arg)
1925 SSL_set_msg_callback(ssl, cb)
1926 SSL_set_msg_callback_arg(ssl, arg)
1928 to request calling a callback function
1930 void cb(int write_p, int version, int content_type,
1931 const void *buf, size_t len, SSL *ssl, void *arg)
1933 whenever a protocol message has been completely received
1934 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1935 protocol version according to which the SSL library interprets
1936 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1937 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1938 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1939 specification (change_cipher_spec(20), alert(21), handshake(22)).
1940 'buf' and 'len' point to the actual message, 'ssl' to the
1941 SSL object, and 'arg' is the application-defined value set by
1942 SSL[_CTX]_set_msg_callback_arg().
1944 'openssl s_client' and 'openssl s_server' have new '-msg' options
1945 to enable a callback that displays all protocol messages.
1948 *) Change the shared library support so shared libraries are built as
1949 soon as the corresponding static library is finished, and thereby get
1950 openssl and the test programs linked against the shared library.
1951 This still only happens when the keyword "shard" has been given to
1952 the configuration scripts.
1954 NOTE: shared library support is still an experimental thing, and
1955 backward binary compatibility is still not guaranteed.
1956 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1958 *) Add support for Subject Information Access extension.
1959 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1961 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1962 additional bytes when new memory had to be allocated, not just
1963 when reusing an existing buffer.
1966 *) New command line and configuration option 'utf8' for the req command.
1967 This allows field values to be specified as UTF8 strings.
1970 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1971 runs for the former and machine-readable output for the latter.
1974 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1975 of the e-mail address in the DN (i.e., it will go into a certificate
1976 extension only). The new configuration file option 'email_in_dn = no'
1977 has the same effect.
1978 [Massimiliano Pala madwolf@openca.org]
1980 *) Change all functions with names starting with des_ to be starting
1981 with DES_ instead. Add wrappers that are compatible with libdes,
1982 but are named _ossl_old_des_*. Finally, add macros that map the
1983 des_* symbols to the corresponding _ossl_old_des_* if libdes
1984 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1985 desired, the des_* symbols will be mapped to DES_*, with one
1988 Since we provide two compatibility mappings, the user needs to
1989 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1990 compatibility is desired. The default (i.e., when that macro
1991 isn't defined) is OpenSSL 0.9.6c compatibility.
1993 There are also macros that enable and disable the support of old
1994 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1995 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1996 are defined, the default will apply: to support the old des routines.
1998 In either case, one must include openssl/des.h to get the correct
1999 definitions. Do not try to just include openssl/des_old.h, that
2002 NOTE: This is a major break of an old API into a new one. Software
2003 authors are encouraged to switch to the DES_ style functions. Some
2004 time in the future, des_old.h and the libdes compatibility functions
2005 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2006 default), and then completely removed.
2009 *) Test for certificates which contain unsupported critical extensions.
2010 If such a certificate is found during a verify operation it is
2011 rejected by default: this behaviour can be overridden by either
2012 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2013 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2014 X509_supported_extension() has also been added which returns 1 if a
2015 particular extension is supported.
2018 *) Modify the behaviour of EVP cipher functions in similar way to digests
2019 to retain compatibility with existing code.
2022 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2023 compatibility with existing code. In particular the 'ctx' parameter does
2024 not have to be to be initialized before the call to EVP_DigestInit() and
2025 it is tidied up after a call to EVP_DigestFinal(). New function
2026 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2027 EVP_MD_CTX_copy() changed to not require the destination to be
2028 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2029 requires the destination to be valid.
2031 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2032 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2035 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2036 so that complete 'Handshake' protocol structures are kept in memory
2037 instead of overwriting 'msg_type' and 'length' with 'body' data.
2040 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2041 [Massimo Santin via Richard Levitte]
2043 *) Major restructuring to the underlying ENGINE code. This includes
2044 reduction of linker bloat, separation of pure "ENGINE" manipulation
2045 (initialisation, etc) from functionality dealing with implementations
2046 of specific crypto iterfaces. This change also introduces integrated
2047 support for symmetric ciphers and digest implementations - so ENGINEs
2048 can now accelerate these by providing EVP_CIPHER and EVP_MD
2049 implementations of their own. This is detailed in crypto/engine/README
2050 as it couldn't be adequately described here. However, there are a few
2051 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2052 were changed in the original introduction of ENGINE code have now
2053 reverted back - the hooking from this code to ENGINE is now a good
2054 deal more passive and at run-time, operations deal directly with
2055 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2056 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2057 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2058 they were not being used by the framework as there is no concept of a
2059 BIGNUM_METHOD and they could not be generalised to the new
2060 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2061 ENGINE_cpy() has been removed as it cannot be consistently defined in
2065 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2068 *) Change mkdef.pl to sort symbols that get the same entry number,
2069 and make sure the automatically generated functions ERR_load_*
2070 become part of libeay.num as well.
2073 *) New function SSL_renegotiate_pending(). This returns true once
2074 renegotiation has been requested (either SSL_renegotiate() call
2075 or HelloRequest/ClientHello receveived from the peer) and becomes
2076 false once a handshake has been completed.
2077 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2078 sends a HelloRequest, but does not ensure that a handshake takes
2079 place. SSL_renegotiate_pending() is useful for checking if the
2080 client has followed the request.)
2083 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2084 By default, clients may request session resumption even during
2085 renegotiation (if session ID contexts permit); with this option,
2086 session resumption is possible only in the first handshake.
2088 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2089 more bits available for options that should not be part of
2090 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2093 *) Add some demos for certificate and certificate request creation.
2096 *) Make maximum certificate chain size accepted from the peer application
2097 settable (SSL*_get/set_max_cert_list()), as proposed by
2098 "Douglas E. Engert" <deengert@anl.gov>.
2101 *) Add support for shared libraries for Unixware-7
2102 (Boyd Lynn Gerber <gerberb@zenez.com>).
2105 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2106 be done prior to destruction. Use this to unload error strings from
2107 ENGINEs that load their own error strings. NB: This adds two new API
2108 functions to "get" and "set" this destroy handler in an ENGINE.
2111 *) Alter all existing ENGINE implementations (except "openssl" and
2112 "openbsd") to dynamically instantiate their own error strings. This
2113 makes them more flexible to be built both as statically-linked ENGINEs
2114 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2115 Also, add stub code to each that makes building them as self-contained
2116 shared-libraries easier (see README.ENGINE).
2119 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2120 implementations into applications that are completely implemented in
2121 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2122 commands that can be used to configure what shared-library to load and
2123 to control aspects of the way it is handled. Also, made an update to
2124 the README.ENGINE file that brings its information up-to-date and
2125 provides some information and instructions on the "dynamic" ENGINE
2126 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2129 *) Make it possible to unload ranges of ERR strings with a new
2130 "ERR_unload_strings" function.
2133 *) Add a copy() function to EVP_MD.
2136 *) Make EVP_MD routines take a context pointer instead of just the
2137 md_data void pointer.
2140 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2141 that the digest can only process a single chunk of data
2142 (typically because it is provided by a piece of
2143 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2144 is only going to provide a single chunk of data, and hence the
2145 framework needn't accumulate the data for oneshot drivers.
2148 *) As with "ERR", make it possible to replace the underlying "ex_data"
2149 functions. This change also alters the storage and management of global
2150 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2151 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2152 index counters. The API functions that use this state have been changed
2153 to take a "class_index" rather than pointers to the class's local STACK
2154 and counter, and there is now an API function to dynamically create new
2155 classes. This centralisation allows us to (a) plug a lot of the
2156 thread-safety problems that existed, and (b) makes it possible to clean
2157 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2158 such data would previously have always leaked in application code and
2159 workarounds were in place to make the memory debugging turn a blind eye
2160 to it. Application code that doesn't use this new function will still
2161 leak as before, but their memory debugging output will announce it now
2162 rather than letting it slide.
2164 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2165 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2166 has a return value to indicate success or failure.
2169 *) Make it possible to replace the underlying "ERR" functions such that the
2170 global state (2 LHASH tables and 2 locks) is only used by the "default"
2171 implementation. This change also adds two functions to "get" and "set"
2172 the implementation prior to it being automatically set the first time
2173 any other ERR function takes place. Ie. an application can call "get",
2174 pass the return value to a module it has just loaded, and that module
2175 can call its own "set" function using that value. This means the
2176 module's "ERR" operations will use (and modify) the error state in the
2177 application and not in its own statically linked copy of OpenSSL code.
2180 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2181 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2182 the operation, and provides a more encapsulated way for external code
2183 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2184 to use these functions rather than manually incrementing the counts.
2186 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2189 *) Add EVP test program.
2192 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2195 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2196 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2197 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2198 These allow a CRL to be built without having to access X509_CRL fields
2199 directly. Modify 'ca' application to use new functions.
2202 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2203 bug workarounds. Rollback attack detection is a security feature.
2204 The problem will only arise on OpenSSL servers when TLSv1 is not
2205 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2206 Software authors not wanting to support TLSv1 will have special reasons
2207 for their choice and can explicitly enable this option.
2208 [Bodo Moeller, Lutz Jaenicke]
2210 *) Rationalise EVP so it can be extended: don't include a union of
2211 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2212 (similar to those existing for EVP_CIPHER_CTX).
2217 EVP_MD_CTX_init(&md); /* new function call */
2218 EVP_DigestInit(&md, EVP_sha1());
2219 EVP_DigestUpdate(&md, in, len);
2220 EVP_DigestFinal(&md, out, NULL);
2221 EVP_MD_CTX_cleanup(&md); /* new function call */
2225 *) Make DES key schedule conform to the usual scheme, as well as
2226 correcting its structure. This means that calls to DES functions
2227 now have to pass a pointer to a des_key_schedule instead of a
2228 plain des_key_schedule (which was actually always a pointer
2231 des_key_schedule ks;
2233 des_set_key_checked(..., &ks);
2234 des_ncbc_encrypt(..., &ks, ...);
2236 (Note that a later change renames 'des_...' into 'DES_...'.)
2239 *) Initial reduction of linker bloat: the use of some functions, such as
2240 PEM causes large amounts of unused functions to be linked in due to
2241 poor organisation. For example pem_all.c contains every PEM function
2242 which has a knock on effect of linking in large amounts of (unused)
2243 ASN1 code. Grouping together similar functions and splitting unrelated
2244 functions prevents this.
2247 *) Cleanup of EVP macros.
2250 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2251 correct _ecb suffix.
2254 *) Add initial OCSP responder support to ocsp application. The
2255 revocation information is handled using the text based index
2256 use by the ca application. The responder can either handle
2257 requests generated internally, supplied in files (for example
2258 via a CGI script) or using an internal minimal server.
2261 *) Add configuration choices to get zlib compression for TLS.
2264 *) Changes to Kerberos SSL for RFC 2712 compliance:
2265 1. Implemented real KerberosWrapper, instead of just using
2266 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2267 2. Implemented optional authenticator field of KerberosWrapper.
2269 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2270 and authenticator structs; see crypto/krb5/.
2272 Generalized Kerberos calls to support multiple Kerberos libraries.
2273 [Vern Staats <staatsvr@asc.hpc.mil>,
2274 Jeffrey Altman <jaltman@columbia.edu>
2275 via Richard Levitte]
2277 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2278 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2279 values for each of the key sizes rather than having just
2280 parameters (and 'speed' generating keys each time).
2283 *) Speed up EVP routines.
2286 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2287 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2288 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2289 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2291 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2292 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2293 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2296 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2298 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2301 *) Added the OS2-EMX target.
2302 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2304 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2305 to support NCONF routines in extension code. New function CONF_set_nconf()
2306 to allow functions which take an NCONF to also handle the old LHASH
2307 structure: this means that the old CONF compatible routines can be
2308 retained (in particular wrt extensions) without having to duplicate the
2309 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2312 *) Enhance the general user interface with mechanisms for inner control
2313 and with possibilities to have yes/no kind of prompts.
2316 *) Change all calls to low level digest routines in the library and
2317 applications to use EVP. Add missing calls to HMAC_cleanup() and
2318 don't assume HMAC_CTX can be copied using memcpy().
2319 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2321 *) Add the possibility to control engines through control names but with
2322 arbitrary arguments instead of just a string.
2323 Change the key loaders to take a UI_METHOD instead of a callback
2324 function pointer. NOTE: this breaks binary compatibility with earlier
2325 versions of OpenSSL [engine].
2326 Adapt the nCipher code for these new conditions and add a card insertion
2330 *) Enhance the general user interface with mechanisms to better support
2331 dialog box interfaces, application-defined prompts, the possibility
2332 to use defaults (for example default passwords from somewhere else)
2333 and interrupts/cancellations.
2336 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2337 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2340 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2341 tidy up some unnecessarily weird code in 'sk_new()').
2342 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2344 *) Change the key loading routines for ENGINEs to use the same kind
2345 callback (pem_password_cb) as all other routines that need this
2349 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2350 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2351 than this minimum value is recommended.
2354 *) New random seeder for OpenVMS, using the system process statistics
2355 that are easily reachable.
2358 *) Windows apparently can't transparently handle global
2359 variables defined in DLLs. Initialisations such as:
2361 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2363 wont compile. This is used by the any applications that need to
2364 declare their own ASN1 modules. This was fixed by adding the option
2365 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2366 needed for static libraries under Win32.
2369 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2370 setting of purpose and trust fields. New X509_STORE trust and
2371 purpose functions and tidy up setting in other SSL functions.
2374 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2375 structure. These are inherited by X509_STORE_CTX when it is
2376 initialised. This allows various defaults to be set in the
2377 X509_STORE structure (such as flags for CRL checking and custom
2378 purpose or trust settings) for functions which only use X509_STORE_CTX
2379 internally such as S/MIME.
2381 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2382 trust settings if they are not set in X509_STORE. This allows X509_STORE
2383 purposes and trust (in S/MIME for example) to override any set by default.
2385 Add command line options for CRL checking to smime, s_client and s_server
2389 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2390 are set then the CRL is looked up in the X509_STORE structure and
2391 its validity and signature checked, then if the certificate is found
2392 in the CRL the verify fails with a revoked error.
2394 Various new CRL related callbacks added to X509_STORE_CTX structure.
2396 Command line options added to 'verify' application to support this.
2398 This needs some additional work, such as being able to handle multiple
2399 CRLs with different times, extension based lookup (rather than just
2400 by subject name) and ultimately more complete V2 CRL extension
2404 *) Add a general user interface API (crypto/ui/). This is designed
2405 to replace things like des_read_password and friends (backward
2406 compatibility functions using this new API are provided).
2407 The purpose is to remove prompting functions from the DES code
2408 section as well as provide for prompting through dialog boxes in
2409 a window system and the like.
2412 *) Add "ex_data" support to ENGINE so implementations can add state at a
2413 per-structure level rather than having to store it globally.
2416 *) Make it possible for ENGINE structures to be copied when retrieved by
2417 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2418 This causes the "original" ENGINE structure to act like a template,
2419 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2420 operational state can be localised to each ENGINE structure, despite the
2421 fact they all share the same "methods". New ENGINE structures returned in
2422 this case have no functional references and the return value is the single
2423 structural reference. This matches the single structural reference returned
2424 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2428 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2429 needs to match any other type at all we need to manually clear the
2433 *) Changes to the "openssl engine" utility to include;
2434 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2435 about an ENGINE's available control commands.
2436 - executing control commands from command line arguments using the
2437 '-pre' and '-post' switches. '-post' is only used if '-t' is
2438 specified and the ENGINE is successfully initialised. The syntax for
2439 the individual commands are colon-separated, for example;
2440 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2443 *) New dynamic control command support for ENGINEs. ENGINEs can now
2444 declare their own commands (numbers), names (strings), descriptions,
2445 and input types for run-time discovery by calling applications. A
2446 subset of these commands are implicitly classed as "executable"
2447 depending on their input type, and only these can be invoked through
2448 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2449 can be based on user input, config files, etc). The distinction is
2450 that "executable" commands cannot return anything other than a boolean
2451 result and can only support numeric or string input, whereas some
2452 discoverable commands may only be for direct use through
2453 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2454 pointers, or other custom uses. The "executable" commands are to
2455 support parameterisations of ENGINE behaviour that can be
2456 unambiguously defined by ENGINEs and used consistently across any
2457 OpenSSL-based application. Commands have been added to all the
2458 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2459 control over shared-library paths without source code alterations.
2462 *) Changed all ENGINE implementations to dynamically allocate their
2463 ENGINEs rather than declaring them statically. Apart from this being
2464 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2465 this also allows the implementations to compile without using the
2466 internal engine_int.h header.
2469 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2470 'const' value. Any code that should be able to modify a RAND_METHOD
2471 should already have non-const pointers to it (ie. they should only
2472 modify their own ones).
2475 *) Made a variety of little tweaks to the ENGINE code.
2476 - "atalla" and "ubsec" string definitions were moved from header files
2477 to C code. "nuron" string definitions were placed in variables
2478 rather than hard-coded - allowing parameterisation of these values
2479 later on via ctrl() commands.
2480 - Removed unused "#if 0"'d code.
2481 - Fixed engine list iteration code so it uses ENGINE_free() to release
2482 structural references.
2483 - Constified the RAND_METHOD element of ENGINE structures.
2484 - Constified various get/set functions as appropriate and added
2485 missing functions (including a catch-all ENGINE_cpy that duplicates
2486 all ENGINE values onto a new ENGINE except reference counts/state).
2487 - Removed NULL parameter checks in get/set functions. Setting a method
2488 or function to NULL is a way of cancelling out a previously set
2489 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2490 and doesn't justify the extra error symbols and code.
2491 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2492 flags from engine_int.h to engine.h.
2493 - Changed prototypes for ENGINE handler functions (init(), finish(),
2494 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2497 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2498 to the algorithm using long division. The binary algorithm can be
2499 used only if the modulus is odd. On 32-bit systems, it is faster
2500 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2501 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2502 up to 450 bits. In 64-bit environments, the binary algorithm
2503 appears to be advantageous for much longer moduli; here we use it
2504 for moduli up to 2048 bits.
2507 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2508 could not support the combine flag in choice fields.
2511 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2512 extensions from a certificate request to the certificate.
2515 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2516 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2517 file: this allows the display of the certificate about to be
2518 signed to be customised, to allow certain fields to be included
2519 or excluded and extension details. The old system didn't display
2520 multicharacter strings properly, omitted fields not in the policy
2521 and couldn't display additional details such as extensions.
2524 *) Function EC_POINTs_mul for multiple scalar multiplication
2525 of an arbitrary number of elliptic curve points
2526 \sum scalars[i]*points[i],
2527 optionally including the generator defined for the EC_GROUP:
2528 scalar*generator + \sum scalars[i]*points[i].
2530 EC_POINT_mul is a simple wrapper function for the typical case
2531 that the point list has just one item (besides the optional
2535 *) First EC_METHODs for curves over GF(p):
2537 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2538 operations and provides various method functions that can also
2539 operate with faster implementations of modular arithmetic.
2541 EC_GFp_mont_method() reuses most functions that are part of
2542 EC_GFp_simple_method, but uses Montgomery arithmetic.
2544 [Bodo Moeller; point addition and point doubling
2545 implementation directly derived from source code provided by
2546 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2548 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2549 crypto/ec/ec_lib.c):
2551 Curves are EC_GROUP objects (with an optional group generator)
2552 based on EC_METHODs that are built into the library.
2554 Points are EC_POINT objects based on EC_GROUP objects.
2556 Most of the framework would be able to handle curves over arbitrary
2557 finite fields, but as there are no obvious types for fields other
2558 than GF(p), some functions are limited to that for now.
2561 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2562 that the file contains a complete HTTP response.
2565 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2566 change the def and num file printf format specifier from "%-40sXXX"
2567 to "%-39s XXX". The latter will always guarantee a space after the
2568 field while the former will cause them to run together if the field
2569 is 40 of more characters long.
2572 *) Constify the cipher and digest 'method' functions and structures
2573 and modify related functions to take constant EVP_MD and EVP_CIPHER
2577 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2578 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2581 *) Modify EVP_Digest*() routines so they now return values. Although the
2582 internal software routines can never fail additional hardware versions
2586 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2588 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2589 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2592 ERR_R_NESTED_ASN1_ERROR
2594 ERR_R_MISSING_ASN1_EOS
2595 were 4 .. 9, conflicting with
2596 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2598 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2599 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2601 Add new error code 'ERR_R_INTERNAL_ERROR'.
2604 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2608 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2609 sets the subject name for a new request or supersedes the
2610 subject name in a given request. Formats that can be parsed are
2611 'CN=Some Name, OU=myOU, C=IT'
2613 'CN=Some Name/OU=myOU/C=IT'.
2615 Add options '-batch' and '-verbose' to 'openssl req'.
2616 [Massimiliano Pala <madwolf@hackmasters.net>]
2618 *) Introduce the possibility to access global variables through
2619 functions on platform were that's the best way to handle exporting
2620 global variables in shared libraries. To enable this functionality,
2621 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2622 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2623 is normally done by Configure or something similar).
2625 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2626 in the source file (foo.c) like this:
2628 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2629 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2631 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2632 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2634 OPENSSL_DECLARE_GLOBAL(int,foo);
2635 #define foo OPENSSL_GLOBAL_REF(foo)
2636 OPENSSL_DECLARE_GLOBAL(double,bar);
2637 #define bar OPENSSL_GLOBAL_REF(bar)
2639 The #defines are very important, and therefore so is including the
2640 header file everywhere where the defined globals are used.
2642 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2643 of ASN.1 items, but that structure is a bit different.
2645 The largest change is in util/mkdef.pl which has been enhanced with
2646 better and easier to understand logic to choose which symbols should
2647 go into the Windows .def files as well as a number of fixes and code
2648 cleanup (among others, algorithm keywords are now sorted
2649 lexicographically to avoid constant rewrites).
2652 *) In BN_div() keep a copy of the sign of 'num' before writing the
2653 result to 'rm' because if rm==num the value will be overwritten
2654 and produce the wrong result if 'num' is negative: this caused
2655 problems with BN_mod() and BN_nnmod().
2658 *) Function OCSP_request_verify(). This checks the signature on an
2659 OCSP request and verifies the signer certificate. The signer
2660 certificate is just checked for a generic purpose and OCSP request
2664 *) Add OCSP_check_validity() function to check the validity of OCSP
2665 responses. OCSP responses are prepared in real time and may only
2666 be a few seconds old. Simply checking that the current time lies
2667 between thisUpdate and nextUpdate max reject otherwise valid responses
2668 caused by either OCSP responder or client clock inaccuracy. Instead
2669 we allow thisUpdate and nextUpdate to fall within a certain period of
2670 the current time. The age of the response can also optionally be
2671 checked. Two new options -validity_period and -status_age added to
2675 *) If signature or public key algorithm is unrecognized print out its
2676 OID rather that just UNKNOWN.
2679 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2680 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2681 ID to be generated from the issuer certificate alone which can then be
2682 passed to OCSP_id_issuer_cmp().
2685 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2686 ASN1 modules to export functions returning ASN1_ITEM pointers
2687 instead of the ASN1_ITEM structures themselves. This adds several
2688 new macros which allow the underlying ASN1 function/structure to
2689 be accessed transparently. As a result code should not use ASN1_ITEM
2690 references directly (such as &X509_it) but instead use the relevant
2691 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2692 use of the new ASN1 code on platforms where exporting structures
2693 is problematical (for example in shared libraries) but exporting
2694 functions returning pointers to structures is not.
2697 *) Add support for overriding the generation of SSL/TLS session IDs.
2698 These callbacks can be registered either in an SSL_CTX or per SSL.
2699 The purpose of this is to allow applications to control, if they wish,
2700 the arbitrary values chosen for use as session IDs, particularly as it
2701 can be useful for session caching in multiple-server environments. A
2702 command-line switch for testing this (and any client code that wishes
2703 to use such a feature) has been added to "s_server".
2704 [Geoff Thorpe, Lutz Jaenicke]
2706 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2707 of the form '#if defined(...) || defined(...) || ...' and
2708 '#if !defined(...) && !defined(...) && ...'. This also avoids
2709 the growing number of special cases it was previously handling.
2712 *) Make all configuration macros available for application by making
2713 sure they are available in opensslconf.h, by giving them names starting
2714 with "OPENSSL_" to avoid conflicts with other packages and by making
2715 sure e_os2.h will cover all platform-specific cases together with
2717 Additionally, it is now possible to define configuration/platform-
2718 specific names (called "system identities"). In the C code, these
2719 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2720 macro with the name beginning with "OPENSSL_SYS_", which is determined
2721 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2725 *) New option -set_serial to 'req' and 'x509' this allows the serial
2726 number to use to be specified on the command line. Previously self
2727 signed certificates were hard coded with serial number 0 and the
2728 CA options of 'x509' had to use a serial number in a file which was
2732 *) New options to 'ca' utility to support V2 CRL entry extensions.
2733 Currently CRL reason, invalidity date and hold instruction are
2734 supported. Add new CRL extensions to V3 code and some new objects.
2737 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2738 disable standard block padding (aka PKCS#5 padding) in the EVP
2739 API, which was previously mandatory. This means that the data is
2740 not padded in any way and so the total length much be a multiple
2741 of the block size, otherwise an error occurs.
2744 *) Initial (incomplete) OCSP SSL support.
2747 *) New function OCSP_parse_url(). This splits up a URL into its host,
2748 port and path components: primarily to parse OCSP URLs. New -url
2749 option to ocsp utility.
2752 *) New nonce behavior. The return value of OCSP_check_nonce() now
2753 reflects the various checks performed. Applications can decide
2754 whether to tolerate certain situations such as an absent nonce
2755 in a response when one was present in a request: the ocsp application
2756 just prints out a warning. New function OCSP_add1_basic_nonce()
2757 this is to allow responders to include a nonce in a response even if
2758 the request is nonce-less.
2761 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2762 skipped when using openssl x509 multiple times on a single input file,
2763 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2766 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2767 set string type: to handle setting ASN1_TIME structures. Fix ca
2768 utility to correctly initialize revocation date of CRLs.
2771 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2772 the clients preferred ciphersuites and rather use its own preferences.
2773 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2774 Internet Explorer by ensuring unchanged hash method during stepup.
2775 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2778 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2779 to aes and add a new 'exist' option to print out symbols that don't
2783 *) Additional options to ocsp utility to allow flags to be set and
2784 additional certificates supplied.
2787 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2788 OCSP client a number of certificate to only verify the response
2792 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2793 handle the new API. Currently only ECB, CBC modes supported. Add new
2796 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2797 Encryption Standard (AES) Ciphersuites for Transport Layer
2798 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2799 not enabled by default and were not part of the "ALL" ciphersuite
2800 alias because they were not yet official; they could be
2801 explicitly requested by specifying the "AESdraft" ciphersuite
2802 group alias. In the final release of OpenSSL 0.9.7, the group
2803 alias is called "AES" and is part of "ALL".)
2804 [Ben Laurie, Steve Henson, Bodo Moeller]
2806 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2807 request to response.
2810 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2811 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2812 extract information from a certificate request. OCSP_response_create()
2813 creates a response and optionally adds a basic response structure.
2814 OCSP_basic_add1_status() adds a complete single response to a basic
2815 response and returns the OCSP_SINGLERESP structure just added (to allow
2816 extensions to be included for example). OCSP_basic_add1_cert() adds a
2817 certificate to a basic response and OCSP_basic_sign() signs a basic
2818 response with various flags. New helper functions ASN1_TIME_check()
2819 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2820 (converts ASN1_TIME to GeneralizedTime).
2823 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2824 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2825 structure from a certificate. X509_pubkey_digest() digests the public_key
2826 contents: this is used in various key identifiers.
2829 *) Make sk_sort() tolerate a NULL argument.
2830 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2832 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2833 passed by the function are trusted implicitly. If any of them signed the
2834 response then it is assumed to be valid and is not verified.
2837 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2838 to data. This was previously part of the PKCS7 ASN1 code. This
2839 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2840 [Steve Henson, reported by Kenneth R. Robinette
2841 <support@securenetterm.com>]
2843 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2844 routines: without these tracing memory leaks is very painful.
2845 Fix leaks in PKCS12 and PKCS7 routines.
2848 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2849 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2850 effectively meant GeneralizedTime would never be used. Now it
2851 is initialised to -1 but X509_time_adj() now has to check the value
2852 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2853 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2854 [Steve Henson, reported by Kenneth R. Robinette
2855 <support@securenetterm.com>]
2857 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2858 result in a zero length in the ASN1_INTEGER structure which was
2859 not consistent with the structure when d2i_ASN1_INTEGER() was used
2860 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2861 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2862 where it did not print out a minus for negative ASN1_INTEGER.
2865 *) Add summary printout to ocsp utility. The various functions which
2866 convert status values to strings have been renamed to:
2867 OCSP_response_status_str(), OCSP_cert_status_str() and
2868 OCSP_crl_reason_str() and are no longer static. New options
2869 to verify nonce values and to disable verification. OCSP response
2870 printout format cleaned up.
2873 *) Add additional OCSP certificate checks. These are those specified
2874 in RFC2560. This consists of two separate checks: the CA of the
2875 certificate being checked must either be the OCSP signer certificate
2876 or the issuer of the OCSP signer certificate. In the latter case the
2877 OCSP signer certificate must contain the OCSP signing extended key
2878 usage. This check is performed by attempting to match the OCSP
2879 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2880 in the OCSP_CERTID structures of the response.
2883 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2884 and related routines. This uses the standard OpenSSL certificate
2885 verify routines to perform initial checks (just CA validity) and
2886 to obtain the certificate chain. Then additional checks will be
2887 performed on the chain. Currently the root CA is checked to see
2888 if it is explicitly trusted for OCSP signing. This is used to set
2889 a root CA as a global signing root: that is any certificate that
2890 chains to that CA is an acceptable OCSP signing certificate.
2893 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2894 extensions from a separate configuration file.
2895 As when reading extensions from the main configuration file,
2896 the '-extensions ...' option may be used for specifying the
2898 [Massimiliano Pala <madwolf@comune.modena.it>]
2900 *) New OCSP utility. Allows OCSP requests to be generated or
2901 read. The request can be sent to a responder and the output
2902 parsed, outputed or printed in text form. Not complete yet:
2903 still needs to check the OCSP response validity.
2906 *) New subcommands for 'openssl ca':
2907 'openssl ca -status <serial>' prints the status of the cert with
2908 the given serial number (according to the index file).
2909 'openssl ca -updatedb' updates the expiry status of certificates
2911 [Massimiliano Pala <madwolf@comune.modena.it>]
2913 *) New '-newreq-nodes' command option to CA.pl. This is like
2914 '-newreq', but calls 'openssl req' with the '-nodes' option
2915 so that the resulting key is not encrypted.
2916 [Damien Miller <djm@mindrot.org>]
2918 *) New configuration for the GNU Hurd.
2919 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2921 *) Initial code to implement OCSP basic response verify. This
2922 is currently incomplete. Currently just finds the signer's
2923 certificate and verifies the signature on the response.
2926 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2927 value of OPENSSLDIR. This is available via the new '-d' option
2928 to 'openssl version', and is also included in 'openssl version -a'.
2931 *) Allowing defining memory allocation callbacks that will be given
2932 file name and line number information in additional arguments
2933 (a const char* and an int). The basic functionality remains, as
2934 well as the original possibility to just replace malloc(),
2935 realloc() and free() by functions that do not know about these
2936 additional arguments. To register and find out the current
2937 settings for extended allocation functions, the following
2938 functions are provided:
2940 CRYPTO_set_mem_ex_functions
2941 CRYPTO_set_locked_mem_ex_functions
2942 CRYPTO_get_mem_ex_functions
2943 CRYPTO_get_locked_mem_ex_functions
2945 These work the same way as CRYPTO_set_mem_functions and friends.
2946 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2947 extended allocation function is enabled.
2948 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2949 a conventional allocation function is enabled.
2950 [Richard Levitte, Bodo Moeller]
2952 *) Finish off removing the remaining LHASH function pointer casts.
2953 There should no longer be any prototype-casting required when using
2954 the LHASH abstraction, and any casts that remain are "bugs". See
2955 the callback types and macros at the head of lhash.h for details
2956 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2959 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2960 If /dev/[u]random devices are not available or do not return enough
2961 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2963 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2964 /etc/entropy will be queried once each in this sequence, quering stops
2965 when enough entropy was collected without querying more sockets.
2968 *) Change the Unix RAND_poll() variant to be able to poll several
2969 random devices, as specified by DEVRANDOM, until a sufficient amount
2970 of data has been collected. We spend at most 10 ms on each file
2971 (select timeout) and read in non-blocking mode. DEVRANDOM now
2972 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2973 (previously it was just the string "/dev/urandom"), so on typical
2974 platforms the 10 ms delay will never occur.
2975 Also separate out the Unix variant to its own file, rand_unix.c.
2976 For VMS, there's a currently-empty rand_vms.c.
2979 *) Move OCSP client related routines to ocsp_cl.c. These
2980 provide utility functions which an application needing
2981 to issue a request to an OCSP responder and analyse the
2982 response will typically need: as opposed to those which an
2983 OCSP responder itself would need which will be added later.
2985 OCSP_request_sign() signs an OCSP request with an API similar
2986 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2987 response. OCSP_response_get1_basic() extracts basic response
2988 from response. OCSP_resp_find_status(): finds and extracts status
2989 information from an OCSP_CERTID structure (which will be created
2990 when the request structure is built). These are built from lower
2991 level functions which work on OCSP_SINGLERESP structures but
2992 wont normally be used unless the application wishes to examine
2993 extensions in the OCSP response for example.
2995 Replace nonce routines with a pair of functions.
2996 OCSP_request_add1_nonce() adds a nonce value and optionally
2997 generates a random value. OCSP_check_nonce() checks the
2998 validity of the nonce in an OCSP response.
3001 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3002 This doesn't copy the supplied OCSP_CERTID and avoids the
3003 need to free up the newly created id. Change return type
3004 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3005 This can then be used to add extensions to the request.
3006 Deleted OCSP_request_new(), since most of its functionality
3007 is now in OCSP_REQUEST_new() (and the case insensitive name
3008 clash) apart from the ability to set the request name which
3009 will be added elsewhere.
3012 *) Update OCSP API. Remove obsolete extensions argument from
3013 various functions. Extensions are now handled using the new
3014 OCSP extension code. New simple OCSP HTTP function which
3015 can be used to send requests and parse the response.
3018 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3019 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3020 uses the special reorder version of SET OF to sort the attributes
3021 and reorder them to match the encoded order. This resolves a long
3022 standing problem: a verify on a PKCS7 structure just after signing
3023 it used to fail because the attribute order did not match the
3024 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3025 it uses the received order. This is necessary to tolerate some broken
3026 software that does not order SET OF. This is handled by encoding
3027 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3028 to produce the required SET OF.
3031 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3032 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3033 files to get correct declarations of the ASN.1 item variables.
3036 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3037 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3038 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3039 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3040 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3041 ASN1_ITEM and no wrapper functions.
3044 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3045 replace the old function pointer based I/O routines. Change most of
3046 the *_d2i_bio() and *_d2i_fp() functions to use these.
3049 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3050 lines, recognice more "algorithms" that can be deselected, and make
3051 it complain about algorithm deselection that isn't recognised.
3054 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3055 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3056 to use new functions. Add NO_ASN1_OLD which can be set to remove
3057 some old style ASN1 functions: this can be used to determine if old
3058 code will still work when these eventually go away.
3061 *) New extension functions for OCSP structures, these follow the
3062 same conventions as certificates and CRLs.
3065 *) New function X509V3_add1_i2d(). This automatically encodes and
3066 adds an extension. Its behaviour can be customised with various
3067 flags to append, replace or delete. Various wrappers added for
3068 certifcates and CRLs.
3071 *) Fix to avoid calling the underlying ASN1 print routine when
3072 an extension cannot be parsed. Correct a typo in the
3073 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3076 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3077 entries for variables.
3080 *) Add functionality to apps/openssl.c for detecting locking
3081 problems: As the program is single-threaded, all we have
3082 to do is register a locking callback using an array for
3083 storing which locks are currently held by the program.
3086 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3087 SSL_get_ex_data_X509_STORE_idx(), which is used in
3088 ssl_verify_cert_chain() and thus can be called at any time
3089 during TLS/SSL handshakes so that thread-safety is essential.
3090 Unfortunately, the ex_data design is not at all suited
3091 for multi-threaded use, so it probably should be abolished.
3094 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3095 [Broadcom, tweaked and integrated by Geoff Thorpe]
3097 *) Move common extension printing code to new function
3098 X509V3_print_extensions(). Reorganise OCSP print routines and
3099 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3102 *) New function X509_signature_print() to remove duplication in some
3106 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3107 set (this was treated exactly the same as SET OF previously). This
3108 is used to reorder the STACK representing the structure to match the
3109 encoding. This will be used to get round a problem where a PKCS7
3110 structure which was signed could not be verified because the STACK
3111 order did not reflect the encoded order.
3114 *) Reimplement the OCSP ASN1 module using the new code.
3117 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3118 for its ASN1 operations. The old style function pointers still exist
3119 for now but they will eventually go away.
3122 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3123 completely replaces the old ASN1 functionality with a table driven
3124 encoder and decoder which interprets an ASN1_ITEM structure describing
3125 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3126 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3127 has also been converted to the new form.
3130 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3131 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3132 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3133 for negative moduli.
3136 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3137 of not touching the result's sign bit.
3140 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3144 *) Changed the LHASH code to use prototypes for callbacks, and created
3145 macros to declare and implement thin (optionally static) functions
3146 that provide type-safety and avoid function pointer casting for the
3147 type-specific callbacks.
3150 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3152 [Veers Staats <staatsvr@asc.hpc.mil>,
3153 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3155 *) Reformat the FAQ so the different questions and answers can be divided
3156 in sections depending on the subject.
3159 *) Have the zlib compression code load ZLIB.DLL dynamically under
3163 *) New function BN_mod_sqrt for computing square roots modulo a prime
3164 (using the probabilistic Tonelli-Shanks algorithm unless
3165 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3166 be handled deterministically).
3167 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3169 *) Make BN_mod_inverse faster by explicitly handling small quotients
3170 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3171 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3174 *) New function BN_kronecker.
3177 *) Fix BN_gcd so that it works on negative inputs; the result is
3178 positive unless both parameters are zero.
3179 Previously something reasonably close to an infinite loop was
3180 possible because numbers could be growing instead of shrinking
3181 in the implementation of Euclid's algorithm.
3184 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3185 sign of the number in question.
3187 Fix BN_is_word(a,w) to work correctly for w == 0.
3189 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3190 because its test if the absolute value of 'a' equals 'w'.
3191 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3192 it exists mostly for use in the implementations of BN_is_zero(),
3193 BN_is_one(), and BN_is_word().
3196 *) New function BN_swap.
3199 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3200 the exponentiation functions are more likely to produce reasonable
3201 results on negative inputs.
3204 *) Change BN_mod_mul so that the result is always non-negative.
3205 Previously, it could be negative if one of the factors was negative;
3206 I don't think anyone really wanted that behaviour.
3209 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3210 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3211 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3212 and add new functions:
3221 BN_mod_lshift1_quick
3225 These functions always generate non-negative results.
3227 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3228 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3230 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3231 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3232 be reduced modulo m.
3233 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3236 The following entry accidentily appeared in the CHANGES file
3237 distributed with OpenSSL 0.9.7. The modifications described in
3238 it do *not* apply to OpenSSL 0.9.7.
3240 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3241 was actually never needed) and in BN_mul(). The removal in BN_mul()
3242 required a small change in bn_mul_part_recursive() and the addition
3243 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3244 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3245 bn_sub_words() and bn_add_words() except they take arrays with
3250 *) In 'openssl passwd', verify passwords read from the terminal
3251 unless the '-salt' option is used (which usually means that
3252 verification would just waste user's time since the resulting
3253 hash is going to be compared with some given password hash)
3254 or the new '-noverify' option is used.
3256 This is an incompatible change, but it does not affect
3257 non-interactive use of 'openssl passwd' (passwords on the command
3258 line, '-stdin' option, '-in ...' option) and thus should not
3262 *) Remove all references to RSAref, since there's no more need for it.
3265 *) Make DSO load along a path given through an environment variable
3266 (SHLIB_PATH) with shl_load().
3269 *) Constify the ENGINE code as a result of BIGNUM constification.
3270 Also constify the RSA code and most things related to it. In a
3271 few places, most notable in the depth of the ASN.1 code, ugly
3272 casts back to non-const were required (to be solved at a later
3276 *) Make it so the openssl application has all engines loaded by default.
3279 *) Constify the BIGNUM routines a little more.
3282 *) Add the following functions:
3284 ENGINE_load_cswift()
3286 ENGINE_load_atalla()
3288 ENGINE_load_builtin_engines()
3290 That way, an application can itself choose if external engines that
3291 are built-in in OpenSSL shall ever be used or not. The benefit is
3292 that applications won't have to be linked with libdl or other dso
3293 libraries unless it's really needed.
3295 Changed 'openssl engine' to load all engines on demand.
3296 Changed the engine header files to avoid the duplication of some
3297 declarations (they differed!).
3300 *) 'openssl engine' can now list capabilities.
3303 *) Better error reporting in 'openssl engine'.
3306 *) Never call load_dh_param(NULL) in s_server.
3309 *) Add engine application. It can currently list engines by name and
3310 identity, and test if they are actually available.
3313 *) Improve RPM specification file by forcing symbolic linking and making
3314 sure the installed documentation is also owned by root.root.
3315 [Damien Miller <djm@mindrot.org>]
3317 *) Give the OpenSSL applications more possibilities to make use of
3318 keys (public as well as private) handled by engines.
3321 *) Add OCSP code that comes from CertCo.
3324 *) Add VMS support for the Rijndael code.
3327 *) Added untested support for Nuron crypto accelerator.
3330 *) Add support for external cryptographic devices. This code was
3331 previously distributed separately as the "engine" branch.
3332 [Geoff Thorpe, Richard Levitte]
3334 *) Rework the filename-translation in the DSO code. It is now possible to
3335 have far greater control over how a "name" is turned into a filename
3336 depending on the operating environment and any oddities about the
3337 different shared library filenames on each system.
3340 *) Support threads on FreeBSD-elf in Configure.
3343 *) Fix for SHA1 assembly problem with MASM: it produces
3344 warnings about corrupt line number information when assembling
3345 with debugging information. This is caused by the overlapping
3347 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3350 NCONF_get_number() has no error checking at all. As a replacement,
3351 NCONF_get_number_e() is defined (_e for "error checking") and is
3352 promoted strongly. The old NCONF_get_number is kept around for
3353 binary backward compatibility.
3354 Make it possible for methods to load from something other than a BIO,
3355 by providing a function pointer that is given a name instead of a BIO.
3356 For example, this could be used to load configuration data from an
3360 *) Fix for non blocking accept BIOs. Added new I/O special reason
3361 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3362 with non blocking I/O was not possible because no retry code was
3363 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3367 *) Added the beginnings of Rijndael support.
3370 *) Fix for bug in DirectoryString mask setting. Add support for
3371 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3372 to allow certificate printing to more controllable, additional
3373 'certopt' option to 'x509' to allow new printing options to be
3377 *) Clean old EAY MD5 hack from e_os.h.
3380 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3382 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3383 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3384 [Joe Orton, Steve Henson]
3386 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3388 *) Fix additional bug revealed by the NISCC test suite:
3390 Stop bug triggering large recursion when presented with
3391 certain ASN.1 tags (CVE-2003-0851)
3394 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3396 *) Fix various bugs revealed by running the NISCC test suite:
3398 Stop out of bounds reads in the ASN1 code when presented with
3399 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3401 If verify callback ignores invalid public key errors don't try to check
3402 certificate signature with the NULL public key.
3406 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3407 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3411 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3412 extra data after the compression methods not only for TLS 1.0
3413 but also for SSL 3.0 (as required by the specification).
3414 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3416 *) Change X509_certificate_type() to mark the key as exported/exportable
3417 when it's 512 *bits* long, not 512 bytes.
3420 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3422 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3423 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3424 a protocol version number mismatch like a decryption error
3425 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3428 *) Turn on RSA blinding by default in the default implementation
3429 to avoid a timing attack. Applications that don't want it can call
3430 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3431 They would be ill-advised to do so in most cases.
3432 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3434 *) Change RSA blinding code so that it works when the PRNG is not
3435 seeded (in this case, the secret RSA exponent is abused as
3436 an unpredictable seed -- if it is not unpredictable, there
3437 is no point in blinding anyway). Make RSA blinding thread-safe
3438 by remembering the creator's thread ID in rsa->blinding and
3439 having all other threads use local one-time blinding factors
3440 (this requires more computation than sharing rsa->blinding, but
3441 avoids excessive locking; and if an RSA object is not shared
3442 between threads, blinding will still be very fast).
3445 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3447 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3448 via timing by performing a MAC computation even if incorrrect
3449 block cipher padding has been found. This is a countermeasure
3450 against active attacks where the attacker has to distinguish
3451 between bad padding and a MAC verification error. (CVE-2003-0078)
3453 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3454 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3455 Martin Vuagnoux (EPFL, Ilion)]
3457 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3459 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3460 memory from it's contents. This is done with a counter that will
3461 place alternating values in each byte. This can be used to solve
3462 two issues: 1) the removal of calls to memset() by highly optimizing
3463 compilers, and 2) cleansing with other values than 0, since those can
3464 be read through on certain media, for example a swap space on disk.
3467 *) Bugfix: client side session caching did not work with external caching,
3468 because the session->cipher setting was not restored when reloading
3469 from the external cache. This problem was masked, when
3470 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3471 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3474 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3475 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3476 [Zeev Lieber <zeev-l@yahoo.com>]
3478 *) Undo an undocumented change introduced in 0.9.6e which caused
3479 repeated calls to OpenSSL_add_all_ciphers() and
3480 OpenSSL_add_all_digests() to be ignored, even after calling
3484 *) Change the default configuration reader to deal with last line not
3485 being properly terminated.
3488 *) Change X509_NAME_cmp() so it applies the special rules on handling
3489 DN values that are of type PrintableString, as well as RDNs of type
3490 emailAddress where the value has the type ia5String.
3491 [stefank@valicert.com via Richard Levitte]
3493 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3494 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3495 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3496 the bitwise-OR of the two for use by the majority of applications
3497 wanting this behaviour, and update the docs. The documented
3498 behaviour and actual behaviour were inconsistent and had been
3499 changing anyway, so this is more a bug-fix than a behavioural
3501 [Geoff Thorpe, diagnosed by Nadav Har'El]
3503 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3504 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3507 *) Fix initialization code race conditions in
3508 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3509 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3510 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3511 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3512 ssl2_get_cipher_by_char(),
3513 ssl3_get_cipher_by_char().
3514 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3516 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3517 the cached sessions are flushed, as the remove_cb() might use ex_data
3518 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3519 (see [openssl.org #212]).
3520 [Geoff Thorpe, Lutz Jaenicke]
3522 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3523 length, instead of the encoding length to d2i_ASN1_OBJECT.
3526 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3528 *) [In 0.9.6g-engine release:]
3529 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3530 [Lynn Gazis <lgazis@rainbow.com>]
3532 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3534 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3535 and get fix the header length calculation.
3536 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3537 Alon Kantor <alonk@checkpoint.com> (and others),
3540 *) Use proper error handling instead of 'assertions' in buffer
3541 overflow checks added in 0.9.6e. This prevents DoS (the
3542 assertions could call abort()).
3543 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3545 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3547 *) Add various sanity checks to asn1_get_length() to reject
3548 the ASN1 length bytes if they exceed sizeof(long), will appear
3549 negative or the content length exceeds the length of the
3551 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3553 *) Fix cipher selection routines: ciphers without encryption had no flags
3554 for the cipher strength set and where therefore not handled correctly
3555 by the selection routines (PR #130).
3558 *) Fix EVP_dsa_sha macro.
3562 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3563 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3564 that was added in OpenSSL 0.9.6d.
3566 As the countermeasure turned out to be incompatible with some
3567 broken SSL implementations, the new option is part of SSL_OP_ALL.
3568 SSL_OP_ALL is usually employed when compatibility with weird SSL
3569 implementations is desired (e.g. '-bugs' option to 's_client' and
3570 's_server'), so the new option is automatically set in many
3574 *) Changes in security patch:
3576 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3577 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3578 Air Force Materiel Command, USAF, under agreement number
3581 *) Add various sanity checks to asn1_get_length() to reject
3582 the ASN1 length bytes if they exceed sizeof(long), will appear
3583 negative or the content length exceeds the length of the
3584 supplied buffer. (CVE-2002-0659)
3585 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3587 *) Assertions for various potential buffer overflows, not known to
3589 [Ben Laurie (CHATS)]
3591 *) Various temporary buffers to hold ASCII versions of integers were
3592 too small for 64 bit platforms. (CVE-2002-0655)
3593 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3595 *) Remote buffer overflow in SSL3 protocol - an attacker could
3596 supply an oversized session ID to a client. (CVE-2002-0656)
3597 [Ben Laurie (CHATS)]
3599 *) Remote buffer overflow in SSL2 protocol - an attacker could
3600 supply an oversized client master key. (CVE-2002-0656)
3601 [Ben Laurie (CHATS)]
3603 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3605 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3606 encoded as NULL) with id-dsa-with-sha1.
3607 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3609 *) Check various X509_...() return values in apps/req.c.
3610 [Nils Larsch <nla@trustcenter.de>]
3612 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3613 an end-of-file condition would erronously be flagged, when the CRLF
3614 was just at the end of a processed block. The bug was discovered when
3615 processing data through a buffering memory BIO handing the data to a
3616 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3617 <ptsekov@syntrex.com> and Nedelcho Stanev.
3620 *) Implement a countermeasure against a vulnerability recently found
3621 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3622 before application data chunks to avoid the use of known IVs
3623 with data potentially chosen by the attacker.
3626 *) Fix length checks in ssl3_get_client_hello().
3629 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3630 to prevent ssl3_read_internal() from incorrectly assuming that
3631 ssl3_read_bytes() found application data while handshake
3632 processing was enabled when in fact s->s3->in_read_app_data was
3633 merely automatically cleared during the initial handshake.
3634 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3636 *) Fix object definitions for Private and Enterprise: they were not
3637 recognized in their shortname (=lowercase) representation. Extend
3638 obj_dat.pl to issue an error when using undefined keywords instead
3639 of silently ignoring the problem (Svenning Sorensen
3640 <sss@sss.dnsalias.net>).
3643 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3644 generators, i.e. generators other than 2 and 5. (Previously, the
3645 code did not properly initialise the 'add' and 'rem' values to
3646 BN_generate_prime().)
3648 In the new general case, we do not insist that 'generator' is
3649 actually a primitive root: This requirement is rather pointless;
3650 a generator of the order-q subgroup is just as good, if not
3654 *) Map new X509 verification errors to alerts. Discovered and submitted by
3655 Tom Wu <tom@arcot.com>.
3658 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3659 returning non-zero before the data has been completely received
3660 when using non-blocking I/O.
3661 [Bodo Moeller; problem pointed out by John Hughes]
3663 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3664 [Ben Laurie, Lutz Jaenicke]
3666 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3667 Yoram Zahavi <YoramZ@gilian.com>).
3670 *) Add information about CygWin 1.3 and on, and preserve proper
3671 configuration for the versions before that.
3672 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3674 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3675 check whether we deal with a copy of a session and do not delete from
3676 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3677 <izhar@checkpoint.com>.
3680 *) Do not store session data into the internal session cache, if it
3681 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3682 flag is set). Proposed by Aslam <aslam@funk.com>.
3685 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3689 *) [In 0.9.6d-engine release:]
3690 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3691 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3693 *) Add the configuration target linux-s390x.
3694 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3696 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3697 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3698 variable as an indication that a ClientHello message has been
3699 received. As the flag value will be lost between multiple
3700 invocations of ssl3_accept when using non-blocking I/O, the
3701 function may not be aware that a handshake has actually taken
3702 place, thus preventing a new session from being added to the
3705 To avoid this problem, we now set s->new_session to 2 instead of
3706 using a local variable.
3707 [Lutz Jaenicke, Bodo Moeller]
3709 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3710 if the SSL_R_LENGTH_MISMATCH error is detected.
3711 [Geoff Thorpe, Bodo Moeller]
3713 *) New 'shared_ldflag' column in Configure platform table.
3716 *) Fix EVP_CIPHER_mode macro.
3717 ["Dan S. Camper" <dan@bti.net>]
3719 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3720 type, we must throw them away by setting rr->length to 0.
3721 [D P Chang <dpc@qualys.com>]
3723 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3725 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3726 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3727 worked incorrectly for those cases where range = 10..._2 and
3728 3*range is two bits longer than range.)
3731 *) Only add signing time to PKCS7 structures if it is not already
3735 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3736 OBJ_ld_ce should be OBJ_id_ce.
3737 Also some ip-pda OIDs in crypto/objects/objects.txt were
3738 incorrect (cf. RFC 3039).
3739 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3741 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3742 returns early because it has nothing to do.
3743 [Andy Schneider <andy.schneider@bjss.co.uk>]
3745 *) [In 0.9.6c-engine release:]
3746 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3747 [Andy Schneider <andy.schneider@bjss.co.uk>]
3749 *) [In 0.9.6c-engine release:]
3750 Add support for Cryptographic Appliance's keyserver technology.
3751 (Use engine 'keyclient')
3752 [Cryptographic Appliances and Geoff Thorpe]
3754 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3755 is called via tools/c89.sh because arguments have to be
3756 rearranged (all '-L' options must appear before the first object
3758 [Richard Shapiro <rshapiro@abinitio.com>]
3760 *) [In 0.9.6c-engine release:]
3761 Add support for Broadcom crypto accelerator cards, backported
3763 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3765 *) [In 0.9.6c-engine release:]
3766 Add support for SureWare crypto accelerator cards from
3767 Baltimore Technologies. (Use engine 'sureware')
3768 [Baltimore Technologies and Mark Cox]
3770 *) [In 0.9.6c-engine release:]
3771 Add support for crypto accelerator cards from Accelerated
3772 Encryption Processing, www.aep.ie. (Use engine 'aep')
3773 [AEP Inc. and Mark Cox]
3775 *) Add a configuration entry for gcc on UnixWare.
3776 [Gary Benson <gbenson@redhat.com>]
3778 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3779 messages are stored in a single piece (fixed-length part and
3780 variable-length part combined) and fix various bugs found on the way.
3783 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3784 instead. BIO_gethostbyname() does not know what timeouts are
3785 appropriate, so entries would stay in cache even when they have
3787 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3789 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3790 faced with a pathologically small ClientHello fragment that does
3791 not contain client_version: Instead of aborting with an error,
3792 simply choose the highest available protocol version (i.e.,
3793 TLS 1.0 unless it is disabled). In practice, ClientHello
3794 messages are never sent like this, but this change gives us
3795 strictly correct behaviour at least for TLS.
3798 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3799 never resets s->method to s->ctx->method when called from within
3800 one of the SSL handshake functions.
3801 [Bodo Moeller; problem pointed out by Niko Baric]
3803 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3804 (sent using the client's version number) if client_version is
3805 smaller than the protocol version in use. Also change
3806 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3807 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3808 the client will at least see that alert.
3811 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3815 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3816 client receives HelloRequest while in a handshake.
3817 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3819 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3820 should end in 'break', not 'goto end' which circuments various
3821 cleanups done in state SSL_ST_OK. But session related stuff
3822 must be disabled for SSL_ST_OK in the case that we just sent a
3825 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3826 before just sending a HelloRequest.
3827 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3829 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3830 reveal whether illegal block cipher padding was found or a MAC
3831 verification error occured. (Neither SSLerr() codes nor alerts
3832 are directly visible to potential attackers, but the information
3833 may leak via logfiles.)
3835 Similar changes are not required for the SSL 2.0 implementation
3836 because the number of padding bytes is sent in clear for SSL 2.0,
3837 and the extra bytes are just ignored. However ssl/s2_pkt.c
3838 failed to verify that the purported number of padding bytes is in
3842 *) Add OpenUNIX-8 support including shared libraries
3843 (Boyd Lynn Gerber <gerberb@zenez.com>).
3846 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3847 'wristwatch attack' using huge encoding parameters (cf.
3848 James H. Manger's CRYPTO 2001 paper). Note that the
3849 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3850 encoding parameters and hence was not vulnerable.
3853 *) BN_sqr() bug fix.
3854 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3856 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3857 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3858 followed by modular reduction.
3859 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3861 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3862 equivalent based on BN_pseudo_rand() instead of BN_rand().
3865 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3866 This function was broken, as the check for a new client hello message
3867 to handle SGC did not allow these large messages.
3868 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3871 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3874 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3875 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3878 *) Rework the configuration and shared library support for Tru64 Unix.
3879 The configuration part makes use of modern compiler features and
3880 still retains old compiler behavior for those that run older versions
3881 of the OS. The shared library support part includes a variant that
3882 uses the RPATH feature, and is available through the special
3883 configuration target "alpha-cc-rpath", which will never be selected
3885 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3887 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3888 with the same message size as in ssl3_get_certificate_request().
3889 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3890 messages might inadvertently be reject as too long.
3891 [Petr Lampa <lampa@fee.vutbr.cz>]
3893 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3896 *) Modified SSL library such that the verify_callback that has been set
3897 specificly for an SSL object with SSL_set_verify() is actually being
3898 used. Before the change, a verify_callback set with this function was
3899 ignored and the verify_callback() set in the SSL_CTX at the time of
3900 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3901 to allow the necessary settings.
3904 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3905 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3906 done automatically (in contradiction to the requirements of the C
3907 standard). This made problems when used from OpenSSH.
3910 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3911 dh->length and always used
3913 BN_rand_range(priv_key, dh->p).
3915 BN_rand_range() is not necessary for Diffie-Hellman, and this
3916 specific range makes Diffie-Hellman unnecessarily inefficient if
3917 dh->length (recommended exponent length) is much smaller than the
3918 length of dh->p. We could use BN_rand_range() if the order of
3919 the subgroup was stored in the DH structure, but we only have
3924 BN_rand(priv_key, l, ...)
3926 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3932 RSA_eay_public_encrypt
3933 RSA_eay_private_decrypt
3934 RSA_eay_private_encrypt (signing)
3935 RSA_eay_public_decrypt (signature verification)
3937 (default implementations for RSA_public_encrypt,
3938 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3939 always reject numbers >= n.
3942 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3943 to synchronize access to 'locking_thread'. This is necessary on
3944 systems where access to 'locking_thread' (an 'unsigned long'
3945 variable) is not atomic.
3948 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3949 *before* setting the 'crypto_lock_rand' flag. The previous code had
3950 a race condition if 0 is a valid thread ID.
3951 [Travis Vitek <vitek@roguewave.com>]
3953 *) Add support for shared libraries under Irix.
3954 [Albert Chin-A-Young <china@thewrittenword.com>]
3956 *) Add configuration option to build on Linux on both big-endian and
3958 [Ralf Baechle <ralf@uni-koblenz.de>]
3960 *) Add the possibility to create shared libraries on HP-UX.
3963 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3965 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3966 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3967 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3968 PRNG state recovery was possible based on the output of
3969 one PRNG request appropriately sized to gain knowledge on
3970 'md' followed by enough consecutive 1-byte PRNG requests
3971 to traverse all of 'state'.
3973 1. When updating 'md_local' (the current thread's copy of 'md')
3974 during PRNG output generation, hash all of the previous
3975 'md_local' value, not just the half used for PRNG output.
3977 2. Make the number of bytes from 'state' included into the hash
3978 independent from the number of PRNG bytes requested.
3980 The first measure alone would be sufficient to avoid
3981 Markku-Juhani's attack. (Actually it had never occurred
3982 to me that the half of 'md_local' used for chaining was the
3983 half from which PRNG output bytes were taken -- I had always
3984 assumed that the secret half would be used.) The second
3985 measure makes sure that additional data from 'state' is never
3986 mixed into 'md_local' in small portions; this heuristically
3987 further strengthens the PRNG.
3990 *) Fix crypto/bn/asm/mips3.s.
3993 *) When only the key is given to "enc", the IV is undefined. Print out
3994 an error message in this case.
3997 *) Handle special case when X509_NAME is empty in X509 printing routines.
4000 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4001 positive and less than q.
4004 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4005 used: it isn't thread safe and the add_lock_callback should handle
4007 [Paul Rose <Paul.Rose@bridge.com>]
4009 *) Verify that incoming data obeys the block size in
4010 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4014 [Ulf Möller, Bodo Möller]
4016 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4017 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4018 when fixing the server behaviour for backwards-compatible 'client
4019 hello' messages. (Note that the attack is impractical against
4020 SSL 3.0 and TLS 1.0 anyway because length and version checking
4021 means that the probability of guessing a valid ciphertext is
4022 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4025 Before 0.9.5, the countermeasure (hide the error by generating a
4026 random 'decryption result') did not work properly because
4027 ERR_clear_error() was missing, meaning that SSL_get_error() would
4028 detect the supposedly ignored error.
4030 Both problems are now fixed.
4033 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4034 (previously it was 1024).
4037 *) Fix for compatibility mode trust settings: ignore trust settings
4038 unless some valid trust or reject settings are present.
4041 *) Fix for blowfish EVP: its a variable length cipher.
4044 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4045 parameters in DSA public key structures and return an error in the
4046 DSA routines if parameters are absent.
4049 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4050 in the current directory if neither $RANDFILE nor $HOME was set.
4051 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4052 caused some confusion to Windows users who haven't defined $HOME.
4053 Thus RAND_file_name() is changed again: e_os.h can define a
4054 DEFAULT_HOME, which will be used if $HOME is not set.
4055 For Windows, we use "C:"; on other platforms, we still require
4056 environment variables.
4058 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4059 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4060 having multiple threads call RAND_poll() concurrently.
4063 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4064 combination of a flag and a thread ID variable.
4065 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4066 flag), *other* threads can enter ssleay_add_bytes without obeying
4067 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4068 that they do not hold after the first thread unsets add_do_not_lock).
4071 *) Change bctest again: '-x' expressions are not available in all
4075 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4077 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4078 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4080 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4081 the default extension for executables, if any. Also, make the perl
4082 scripts that use symlink() to test if it really exists and use "cp"
4083 if it doesn't. All this made OpenSSL compilable and installable in
4087 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4088 If SEQUENCE is length is indefinite just set c->slen to the total
4089 amount of data available.
4090 [Steve Henson, reported by shige@FreeBSD.org]
4091 [This change does not apply to 0.9.7.]
4093 *) Change bctest to avoid here-documents inside command substitution
4094 (workaround for FreeBSD /bin/sh bug).
4095 For compatibility with Ultrix, avoid shell functions (introduced
4096 in the bctest version that searches along $PATH).
4099 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4100 with des_encrypt() defined on some operating systems, like Solaris
4104 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4105 On the Importance of Eliminating Errors in Cryptographic
4106 Computations, J. Cryptology 14 (2001) 2, 101-119,
4107 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4110 *) MIPS assembler BIGNUM division bug fix.
4113 *) Disabled incorrect Alpha assembler code.
4116 *) Fix PKCS#7 decode routines so they correctly update the length
4117 after reading an EOC for the EXPLICIT tag.
4119 [This change does not apply to 0.9.7.]
4121 *) Fix bug in PKCS#12 key generation routines. This was triggered
4122 if a 3DES key was generated with a 0 initial byte. Include
4123 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4124 (but broken) behaviour.
4127 *) Enhance bctest to search for a working bc along $PATH and print
4129 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4131 *) Fix memory leaks in err.c: free err_data string if necessary;
4132 don't write to the wrong index in ERR_set_error_data.
4135 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4139 *) Replace rdtsc with _emit statements for VC++ version 5.
4140 [Jeremy Cooper <jeremy@baymoo.org>]
4142 *) Make it possible to reuse SSLv2 sessions.
4145 *) In copy_email() check for >= 0 as a return value for
4146 X509_NAME_get_index_by_NID() since 0 is a valid index.
4147 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4149 *) Avoid coredump with unsupported or invalid public keys by checking if
4150 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4151 PKCS7_verify() fails with non detached data.
4154 *) Don't use getenv in library functions when run as setuid/setgid.
4155 New function OPENSSL_issetugid().
4158 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4159 due to incorrect handling of multi-threading:
4161 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4163 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4165 3. Count how many times MemCheck_off() has been called so that
4166 nested use can be treated correctly. This also avoids
4167 inband-signalling in the previous code (which relied on the
4168 assumption that thread ID 0 is impossible).
4171 *) Add "-rand" option also to s_client and s_server.
4174 *) Fix CPU detection on Irix 6.x.
4175 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4176 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4178 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4181 [This change does not apply to 0.9.7.]
4183 *) Use the cached encoding of an X509_NAME structure rather than
4184 copying it. This is apparently the reason for the libsafe "errors"
4185 but the code is actually correct.
4188 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4189 Bleichenbacher's DSA attack.
4190 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4191 to be set and top=0 forces the highest bit to be set; top=-1 is new
4192 and leaves the highest bit random.
4193 [Ulf Moeller, Bodo Moeller]
4195 *) In the NCONF_...-based implementations for CONF_... queries
4196 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4197 a temporary CONF structure with the data component set to NULL
4198 (which gives segmentation faults in lh_retrieve).
4199 Instead, use NULL for the CONF pointer in CONF_get_string and
4200 CONF_get_number (which may use environment variables) and directly
4201 return NULL from CONF_get_section.
4204 *) Fix potential buffer overrun for EBCDIC.
4207 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4208 keyUsage if basicConstraints absent for a CA.
4211 *) Make SMIME_write_PKCS7() write mail header values with a format that
4212 is more generally accepted (no spaces before the semicolon), since
4213 some programs can't parse those values properly otherwise. Also make
4214 sure BIO's that break lines after each write do not create invalid
4218 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4219 macros previously used would not encode an empty SEQUENCE OF
4220 and break the signature.
4222 [This change does not apply to 0.9.7.]
4224 *) Zero the premaster secret after deriving the master secret in
4228 *) Add some EVP_add_digest_alias registrations (as found in
4229 OpenSSL_add_all_digests()) to SSL_library_init()
4230 aka OpenSSL_add_ssl_algorithms(). This provides improved
4231 compatibility with peers using X.509 certificates
4232 with unconventional AlgorithmIdentifier OIDs.
4235 *) Fix for Irix with NO_ASM.
4236 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4238 *) ./config script fixes.
4239 [Ulf Moeller, Richard Levitte]
4241 *) Fix 'openssl passwd -1'.
4244 *) Change PKCS12_key_gen_asc() so it can cope with non null
4245 terminated strings whose length is passed in the passlen
4246 parameter, for example from PEM callbacks. This was done
4247 by adding an extra length parameter to asc2uni().
4248 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4250 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4251 call failed, free the DSA structure.
4254 *) Fix to uni2asc() to cope with zero length Unicode strings.
4255 These are present in some PKCS#12 files.
4258 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4259 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4260 when writing a 32767 byte record.
4261 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4263 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4264 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4266 (RSA objects have a reference count access to which is protected
4267 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4268 so they are meant to be shared between threads.)
4269 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4270 "Reddie, Steven" <Steven.Reddie@ca.com>]
4272 *) Fix a deadlock in CRYPTO_mem_leaks().
4275 *) Use better test patterns in bntest.
4278 *) rand_win.c fix for Borland C.
4281 *) BN_rshift bugfix for n == 0.
4284 *) Add a 'bctest' script that checks for some known 'bc' bugs
4285 so that 'make test' does not abort just because 'bc' is broken.
4288 *) Store verify_result within SSL_SESSION also for client side to
4289 avoid potential security hole. (Re-used sessions on the client side
4290 always resulted in verify_result==X509_V_OK, not using the original
4291 result of the server certificate verification.)
4294 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4295 SSL3_RT_APPLICATION_DATA, return 0.
4296 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4300 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4301 releases, have been re-implemented by renaming the previous
4302 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4303 and ssl3_read_internal, respectively, and adding 'peek' parameters
4304 to them. The new ssl[23]_{read,peek} functions are calls to
4305 ssl[23]_read_internal with the 'peek' flag set appropriately.
4306 A 'peek' parameter has also been added to ssl3_read_bytes, which
4307 does the actual work for ssl3_read_internal.
4310 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4311 the method-specific "init()" handler. Also clean up ex_data after
4312 calling the method-specific "finish()" handler. Previously, this was
4313 happening the other way round.
4316 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4317 The previous value, 12, was not always sufficient for BN_mod_exp().
4320 *) Make sure that shared libraries get the internal name engine with
4321 the full version number and not just 0. This should mark the
4322 shared libraries as not backward compatible. Of course, this should
4323 be changed again when we can guarantee backward binary compatibility.
4326 *) Fix typo in get_cert_by_subject() in by_dir.c
4327 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4329 *) Rework the system to generate shared libraries:
4331 - Make note of the expected extension for the shared libraries and
4332 if there is a need for symbolic links from for example libcrypto.so.0
4333 to libcrypto.so.0.9.7. There is extended info in Configure for
4336 - Make as few rebuilds of the shared libraries as possible.
4338 - Still avoid linking the OpenSSL programs with the shared libraries.
4340 - When installing, install the shared libraries separately from the
4344 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4346 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4347 and not in SSL_clear because the latter is also used by the
4348 accept/connect functions; previously, the settings made by
4349 SSL_set_read_ahead would be lost during the handshake.
4350 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4352 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4353 Previously, it would create entries for disableed algorithms no
4357 *) Added several new manual pages for SSL_* function.
4360 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4362 *) In ssl23_get_client_hello, generate an error message when faced
4363 with an initial SSL 3.0/TLS record that is too small to contain the
4364 first two bytes of the ClientHello message, i.e. client_version.
4365 (Note that this is a pathologic case that probably has never happened
4366 in real life.) The previous approach was to use the version number
4367 from the record header as a substitute; but our protocol choice
4368 should not depend on that one because it is not authenticated
4369 by the Finished messages.
4372 *) More robust randomness gathering functions for Windows.
4373 [Jeffrey Altman <jaltman@columbia.edu>]
4375 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4376 not set then we don't setup the error code for issuer check errors
4377 to avoid possibly overwriting other errors which the callback does
4378 handle. If an application does set the flag then we assume it knows
4379 what it is doing and can handle the new informational codes
4383 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4384 a general "ANY" type, as such it should be able to decode anything
4385 including tagged types. However it didn't check the class so it would
4386 wrongly interpret tagged types in the same way as their universal
4387 counterpart and unknown types were just rejected. Changed so that the
4388 tagged and unknown types are handled in the same way as a SEQUENCE:
4389 that is the encoding is stored intact. There is also a new type
4390 "V_ASN1_OTHER" which is used when the class is not universal, in this
4391 case we have no idea what the actual type is so we just lump them all
4395 *) On VMS, stdout may very well lead to a file that is written to
4396 in a record-oriented fashion. That means that every write() will
4397 write a separate record, which will be read separately by the
4398 programs trying to read from it. This can be very confusing.
4400 The solution is to put a BIO filter in the way that will buffer
4401 text until a linefeed is reached, and then write everything a
4402 line at a time, so every record written will be an actual line,
4403 not chunks of lines and not (usually doesn't happen, but I've
4404 seen it once) several lines in one record. BIO_f_linebuffer() is
4407 Currently, it's a VMS-only method, because that's where it has
4408 been tested well enough.
4411 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4412 it can return incorrect results.
4413 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4414 but it was in 0.9.6-beta[12].)
4417 *) Disable the check for content being present when verifying detached
4418 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4419 include zero length content when signing messages.
4422 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4423 BIO_ctrl (for BIO pairs).
4426 *) Add DSO method for VMS.
4429 *) Bug fix: Montgomery multiplication could produce results with the
4433 *) Add RPM specification openssl.spec and modify it to build three
4434 packages. The default package contains applications, application
4435 documentation and run-time libraries. The devel package contains
4436 include files, static libraries and function documentation. The
4437 doc package contains the contents of the doc directory. The original
4438 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4441 *) Add a large number of documentation files for many SSL routines.
4442 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4444 *) Add a configuration entry for Sony News 4.
4445 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4447 *) Don't set the two most significant bits to one when generating a
4448 random number < q in the DSA library.
4451 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4452 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4453 the underlying transport is blocking) if a handshake took place.
4454 (The default behaviour is needed by applications such as s_client
4455 and s_server that use select() to determine when to use SSL_read;
4456 but for applications that know in advance when to expect data, it
4457 just makes things more complicated.)
4460 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4464 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4465 work better on such systems.
4466 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4468 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4469 Update PKCS12_parse() so it copies the friendlyName and the
4470 keyid to the certificates aux info.
4473 *) Fix bug in PKCS7_verify() which caused an infinite loop
4474 if there was more than one signature.
4475 [Sven Uszpelkat <su@celocom.de>]
4477 *) Major change in util/mkdef.pl to include extra information
4478 about each symbol, as well as presentig variables as well
4479 as functions. This change means that there's n more need
4480 to rebuild the .num files when some algorithms are excluded.
4483 *) Allow the verify time to be set by an application,
4484 rather than always using the current time.
4487 *) Phase 2 verify code reorganisation. The certificate
4488 verify code now looks up an issuer certificate by a
4489 number of criteria: subject name, authority key id
4490 and key usage. It also verifies self signed certificates
4491 by the same criteria. The main comparison function is
4492 X509_check_issued() which performs these checks.
4494 Lot of changes were necessary in order to support this
4495 without completely rewriting the lookup code.
4497 Authority and subject key identifier are now cached.
4499 The LHASH 'certs' is X509_STORE has now been replaced
4500 by a STACK_OF(X509_OBJECT). This is mainly because an
4501 LHASH can't store or retrieve multiple objects with
4502 the same hash value.
4504 As a result various functions (which were all internal
4505 use only) have changed to handle the new X509_STORE
4506 structure. This will break anything that messed round
4507 with X509_STORE internally.
4509 The functions X509_STORE_add_cert() now checks for an
4510 exact match, rather than just subject name.
4512 The X509_STORE API doesn't directly support the retrieval
4513 of multiple certificates matching a given criteria, however
4514 this can be worked round by performing a lookup first
4515 (which will fill the cache with candidate certificates)
4516 and then examining the cache for matches. This is probably
4517 the best we can do without throwing out X509_LOOKUP
4518 entirely (maybe later...).
4520 The X509_VERIFY_CTX structure has been enhanced considerably.
4522 All certificate lookup operations now go via a get_issuer()
4523 callback. Although this currently uses an X509_STORE it
4524 can be replaced by custom lookups. This is a simple way
4525 to bypass the X509_STORE hackery necessary to make this
4526 work and makes it possible to use more efficient techniques
4527 in future. A very simple version which uses a simple
4528 STACK for its trusted certificate store is also provided
4529 using X509_STORE_CTX_trusted_stack().
4531 The verify_cb() and verify() callbacks now have equivalents
4532 in the X509_STORE_CTX structure.
4534 X509_STORE_CTX also has a 'flags' field which can be used
4535 to customise the verify behaviour.
4538 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4539 excludes S/MIME capabilities.
4542 *) When a certificate request is read in keep a copy of the
4543 original encoding of the signed data and use it when outputing
4544 again. Signatures then use the original encoding rather than
4545 a decoded, encoded version which may cause problems if the
4546 request is improperly encoded.
4549 *) For consistency with other BIO_puts implementations, call
4550 buffer_write(b, ...) directly in buffer_puts instead of calling
4553 In BIO_puts, increment b->num_write as in BIO_write.
4554 [Peter.Sylvester@EdelWeb.fr]
4556 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4557 BN_zero, we may not return a BIGNUM with an array consisting of
4561 *) Avoid calling abort() from within the library when problems are
4562 detected, except if preprocessor symbols have been defined
4563 (such as REF_CHECK, BN_DEBUG etc.).
4566 *) New openssl application 'rsautl'. This utility can be
4567 used for low level RSA operations. DER public key
4568 BIO/fp routines also added.
4571 *) New Configure entry and patches for compiling on QNX 4.
4572 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4574 *) A demo state-machine implementation was sponsored by
4575 Nuron (http://www.nuron.com/) and is now available in
4576 demos/state_machine.
4579 *) New options added to the 'dgst' utility for signature
4580 generation and verification.
4583 *) Unrecognized PKCS#7 content types are now handled via a
4584 catch all ASN1_TYPE structure. This allows unsupported
4585 types to be stored as a "blob" and an application can
4586 encode and decode it manually.
4589 *) Fix various signed/unsigned issues to make a_strex.c
4591 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4593 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4594 length if passed a buffer. ASN1_INTEGER_to_BN failed
4595 if passed a NULL BN and its argument was negative.
4596 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4598 *) Modification to PKCS#7 encoding routines to output definite
4599 length encoding. Since currently the whole structures are in
4600 memory there's not real point in using indefinite length
4601 constructed encoding. However if OpenSSL is compiled with
4602 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4605 *) Added BIO_vprintf() and BIO_vsnprintf().
4608 *) Added more prefixes to parse for in the the strings written
4609 through a logging bio, to cover all the levels that are available
4610 through syslog. The prefixes are now:
4612 PANIC, EMERG, EMR => LOG_EMERG
4613 ALERT, ALR => LOG_ALERT
4614 CRIT, CRI => LOG_CRIT
4615 ERROR, ERR => LOG_ERR
4616 WARNING, WARN, WAR => LOG_WARNING
4617 NOTICE, NOTE, NOT => LOG_NOTICE
4618 INFO, INF => LOG_INFO
4619 DEBUG, DBG => LOG_DEBUG
4621 and as before, if none of those prefixes are present at the
4622 beginning of the string, LOG_ERR is chosen.
4624 On Win32, the LOG_* levels are mapped according to this:
4626 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4627 LOG_WARNING => EVENTLOG_WARNING_TYPE
4628 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4632 *) Made it possible to reconfigure with just the configuration
4633 argument "reconf" or "reconfigure". The command line arguments
4634 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4635 and are retrieved from there when reconfiguring.
4639 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4641 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4644 *) The obj_dat.pl script was messing up the sorting of object
4645 names. The reason was that it compared the quoted version
4646 of strings as a result "OCSP" > "OCSP Signing" because
4647 " > SPACE. Changed script to store unquoted versions of
4648 names and add quotes on output. It was also omitting some
4649 names from the lookup table if they were given a default
4650 value (that is if SN is missing it is given the same
4651 value as LN and vice versa), these are now added on the
4652 grounds that if an object has a name we should be able to
4653 look it up. Finally added warning output when duplicate
4654 short or long names are found.
4657 *) Changes needed for Tandem NSK.
4658 [Scott Uroff <scott@xypro.com>]
4660 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4661 RSA_padding_check_SSLv23(), special padding was never detected
4662 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4663 version rollback attacks was not effective.
4665 In s23_clnt.c, don't use special rollback-attack detection padding
4666 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4667 client; similarly, in s23_srvr.c, don't do the rollback check if
4668 SSL 2.0 is the only protocol enabled in the server.
4671 *) Make it possible to get hexdumps of unprintable data with 'openssl
4672 asn1parse'. By implication, the functions ASN1_parse_dump() and
4673 BIO_dump_indent() are added.
4676 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4677 these print out strings and name structures based on various
4678 flags including RFC2253 support and proper handling of
4679 multibyte characters. Added options to the 'x509' utility
4680 to allow the various flags to be set.
4683 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4684 Also change the functions X509_cmp_current_time() and
4685 X509_gmtime_adj() work with an ASN1_TIME structure,
4686 this will enable certificates using GeneralizedTime in validity
4687 dates to be checked.
4690 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4691 negative public key encodings) on by default,
4692 NO_NEG_PUBKEY_BUG can be set to disable it.
4695 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4696 content octets. An i2c_ASN1_OBJECT is unnecessary because
4697 the encoding can be trivially obtained from the structure.
4700 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4701 not read locks (CRYPTO_r_[un]lock).
4704 *) A first attempt at creating official support for shared
4705 libraries through configuration. I've kept it so the
4706 default is static libraries only, and the OpenSSL programs
4707 are always statically linked for now, but there are
4708 preparations for dynamic linking in place.
4709 This has been tested on Linux and Tru64.
4712 *) Randomness polling function for Win9x, as described in:
4713 Peter Gutmann, Software Generation of Practically Strong
4717 *) Fix so PRNG is seeded in req if using an already existing
4721 *) New options to smime application. -inform and -outform
4722 allow alternative formats for the S/MIME message including
4723 PEM and DER. The -content option allows the content to be
4724 specified separately. This should allow things like Netscape
4725 form signing output easier to verify.
4728 *) Fix the ASN1 encoding of tags using the 'long form'.
4731 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4732 STRING types. These convert content octets to and from the
4733 underlying type. The actual tag and length octets are
4734 already assumed to have been read in and checked. These
4735 are needed because all other string types have virtually
4736 identical handling apart from the tag. By having versions
4737 of the ASN1 functions that just operate on content octets
4738 IMPLICIT tagging can be handled properly. It also allows
4739 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4740 and ASN1_INTEGER are identical apart from the tag.
4743 *) Change the handling of OID objects as follows:
4745 - New object identifiers are inserted in objects.txt, following
4746 the syntax given in objects.README.
4747 - objects.pl is used to process obj_mac.num and create a new
4749 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4752 This is currently kind of a hack, and the perl code in objects.pl
4753 isn't very elegant, but it works as I intended. The simplest way
4754 to check that it worked correctly is to look in obj_dat.h and
4755 check the array nid_objs and make sure the objects haven't moved
4756 around (this is important!). Additions are OK, as well as
4757 consistent name changes.
4760 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4763 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4764 The given file adds to whatever has already been seeded into the
4765 random pool through the RANDFILE configuration file option or
4766 environment variable, or the default random state file.
4769 *) mkstack.pl now sorts each macro group into lexical order.
4770 Previously the output order depended on the order the files
4771 appeared in the directory, resulting in needless rewriting
4775 *) Patches to make OpenSSL compile under Win32 again. Mostly
4776 work arounds for the VC++ problem that it treats func() as
4777 func(void). Also stripped out the parts of mkdef.pl that
4778 added extra typesafe functions: these no longer exist.
4781 *) Reorganisation of the stack code. The macros are now all
4782 collected in safestack.h . Each macro is defined in terms of
4783 a "stack macro" of the form SKM_<name>(type, a, b). The
4784 DEBUG_SAFESTACK is now handled in terms of function casts,
4785 this has the advantage of retaining type safety without the
4786 use of additional functions. If DEBUG_SAFESTACK is not defined
4787 then the non typesafe macros are used instead. Also modified the
4788 mkstack.pl script to handle the new form. Needs testing to see
4789 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4790 the default if no major problems. Similar behaviour for ASN1_SET_OF
4791 and PKCS12_STACK_OF.
4794 *) When some versions of IIS use the 'NET' form of private key the
4795 key derivation algorithm is different. Normally MD5(password) is
4796 used as a 128 bit RC4 key. In the modified case
4797 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4798 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4799 as the old Netscape_RSA functions except they have an additional
4800 'sgckey' parameter which uses the modified algorithm. Also added
4801 an -sgckey command line option to the rsa utility. Thanks to
4802 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4803 algorithm to openssl-dev.
4806 *) The evp_local.h macros were using 'c.##kname' which resulted in
4807 invalid expansion on some systems (SCO 5.0.5 for example).
4808 Corrected to 'c.kname'.
4809 [Phillip Porch <root@theporch.com>]
4811 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4812 a STACK of email addresses from a certificate or request, these look
4813 in the subject name and the subject alternative name extensions and
4814 omit any duplicate addresses.
4817 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4818 This makes DSA verification about 2 % faster.
4821 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4822 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4823 plus overhead for 1024 bit moduli).
4824 This makes exponentiations about 0.5 % faster for 1024 bit
4825 exponents (as measured by "openssl speed rsa2048").
4828 *) Rename memory handling macros to avoid conflicts with other
4830 Malloc => OPENSSL_malloc
4831 Malloc_locked => OPENSSL_malloc_locked
4832 Realloc => OPENSSL_realloc
4833 Free => OPENSSL_free
4836 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4837 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4840 *) CygWin32 support.
4841 [John Jarvie <jjarvie@newsguy.com>]
4843 *) The type-safe stack code has been rejigged. It is now only compiled
4844 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4845 by default all type-specific stack functions are "#define"d back to
4846 standard stack functions. This results in more streamlined output
4847 but retains the type-safety checking possibilities of the original
4851 *) The STACK code has been cleaned up, and certain type declarations
4852 that didn't make a lot of sense have been brought in line. This has
4853 also involved a cleanup of sorts in safestack.h to more correctly
4854 map type-safe stack functions onto their plain stack counterparts.
4855 This work has also resulted in a variety of "const"ifications of
4856 lots of the code, especially "_cmp" operations which should normally
4857 be prototyped with "const" parameters anyway.
4860 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4861 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4862 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4863 where all of 'md' is used each time the PRNG is used, but 'state'
4864 is used only indexed by a cyclic counter. As entropy may not be
4865 well distributed from the beginning, 'md' is important as a
4866 chaining variable. However, the output function chains only half
4867 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4868 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4869 in all of 'state' being rewritten, with the new values depending
4870 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4873 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4874 the handshake is continued after ssl_verify_cert_chain();
4875 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4876 can lead to 'unexplainable' connection aborts later.
4877 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4879 *) Major EVP API cipher revision.
4880 Add hooks for extra EVP features. This allows various cipher
4881 parameters to be set in the EVP interface. Support added for variable
4882 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4883 setting of RC2 and RC5 parameters.
4885 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4888 Remove lots of duplicated code from the EVP library. For example *every*
4889 cipher init() function handles the 'iv' in the same way according to the
4890 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4891 for CFB and OFB modes they zero ctx->num.
4893 New functionality allows removal of S/MIME code RC2 hack.
4895 Most of the routines have the same form and so can be declared in terms
4898 By shifting this to the top level EVP_CipherInit() it can be removed from
4899 all individual ciphers. If the cipher wants to handle IVs or keys
4900 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4903 Change lots of functions like EVP_EncryptUpdate() to now return a
4904 value: although software versions of the algorithms cannot fail
4905 any installed hardware versions can.
4908 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4909 this option is set, tolerate broken clients that send the negotiated
4910 protocol version number instead of the requested protocol version
4914 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4915 i.e. non-zero for export ciphersuites, zero otherwise.
4916 Previous versions had this flag inverted, inconsistent with
4917 rsa_tmp_cb (..._TMP_RSA_CB).
4918 [Bodo Moeller; problem reported by Amit Chopra]
4920 *) Add missing DSA library text string. Work around for some IIS
4921 key files with invalid SEQUENCE encoding.
4924 *) Add a document (doc/standards.txt) that list all kinds of standards
4925 and so on that are implemented in OpenSSL.
4928 *) Enhance c_rehash script. Old version would mishandle certificates
4929 with the same subject name hash and wouldn't handle CRLs at all.
4930 Added -fingerprint option to crl utility, to support new c_rehash
4934 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4937 *) Fix for SSL server purpose checking. Server checking was
4938 rejecting certificates which had extended key usage present
4939 but no ssl client purpose.
4940 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4942 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4943 is a little unclear about how a blank password is handled.
4944 Since the password in encoded as a BMPString with terminating
4945 double NULL a zero length password would end up as just the
4946 double NULL. However no password at all is different and is
4947 handled differently in the PKCS#12 key generation code. NS
4948 treats a blank password as zero length. MSIE treats it as no
4949 password on export: but it will try both on import. We now do
4950 the same: PKCS12_parse() tries zero length and no password if
4951 the password is set to "" or NULL (NULL is now a valid password:
4952 it wasn't before) as does the pkcs12 application.
4955 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4956 perror when PEM_read_bio_X509_REQ fails, the error message must
4957 be obtained from the error queue.
4960 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4961 it in ERR_remove_state if appropriate, and change ERR_get_state
4962 accordingly to avoid race conditions (this is necessary because
4963 thread_hash is no longer constant once set).
4966 *) Bugfix for linux-elf makefile.one.
4969 *) RSA_get_default_method() will now cause a default
4970 RSA_METHOD to be chosen if one doesn't exist already.
4971 Previously this was only set during a call to RSA_new()
4972 or RSA_new_method(NULL) meaning it was possible for
4973 RSA_get_default_method() to return NULL.
4976 *) Added native name translation to the existing DSO code
4977 that will convert (if the flag to do so is set) filenames
4978 that are sufficiently small and have no path information
4979 into a canonical native form. Eg. "blah" converted to
4980 "libblah.so" or "blah.dll" etc.
4983 *) New function ERR_error_string_n(e, buf, len) which is like
4984 ERR_error_string(e, buf), but writes at most 'len' bytes
4985 including the 0 terminator. For ERR_error_string_n, 'buf'
4987 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4989 *) CONF library reworked to become more general. A new CONF
4990 configuration file reader "class" is implemented as well as a
4991 new functions (NCONF_*, for "New CONF") to handle it. The now
4992 old CONF_* functions are still there, but are reimplemented to
4993 work in terms of the new functions. Also, a set of functions
4994 to handle the internal storage of the configuration data is
4995 provided to make it easier to write new configuration file
4996 reader "classes" (I can definitely see something reading a
4997 configuration file in XML format, for example), called _CONF_*,
4998 or "the configuration storage API"...
5000 The new configuration file reading functions are:
5002 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5003 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5005 NCONF_default, NCONF_WIN32
5007 NCONF_dump_fp, NCONF_dump_bio
5009 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5010 NCONF_new creates a new CONF object. This works in the same way
5011 as other interfaces in OpenSSL, like the BIO interface.
5012 NCONF_dump_* dump the internal storage of the configuration file,
5013 which is useful for debugging. All other functions take the same
5014 arguments as the old CONF_* functions wth the exception of the
5015 first that must be a `CONF *' instead of a `LHASH *'.
5017 To make it easer to use the new classes with the old CONF_* functions,
5018 the function CONF_set_default_method is provided.
5021 *) Add '-tls1' option to 'openssl ciphers', which was already
5022 mentioned in the documentation but had not been implemented.
5023 (This option is not yet really useful because even the additional
5024 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5027 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5028 OpenSSL-based applications) load shared libraries and bind to
5029 them in a portable way.
5030 [Geoff Thorpe, with contributions from Richard Levitte]
5032 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5034 *) Make sure _lrotl and _lrotr are only used with MSVC.
5036 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5037 (the default implementation of RAND_status).
5039 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5040 to '-clrext' (= clear extensions), as intended and documented.
5041 [Bodo Moeller; inconsistency pointed out by Michael Attili
5044 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5045 was larger than the MD block size.
5046 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5048 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5049 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5050 using the passed key: if the passed key was a private key the result
5051 of X509_print(), for example, would be to print out all the private key
5055 *) des_quad_cksum() byte order bug fix.
5056 [Ulf Möller, using the problem description in krb4-0.9.7, where
5057 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5059 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5061 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5063 *) For easily testing in shell scripts whether some command
5064 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5065 returns with exit code 0 iff no command of the given name is available.
5066 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5067 the output goes to stdout and nothing is printed to stderr.
5068 Additional arguments are always ignored.
5070 Since for each cipher there is a command of the same name,
5071 the 'no-cipher' compilation switches can be tested this way.
5073 ('openssl no-XXX' is not able to detect pseudo-commands such
5074 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5077 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5080 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5081 is set; it will be thrown away anyway because each handshake creates
5083 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5084 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5085 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5086 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5089 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5090 'Q' and 'R' lose their special meanings (quit/renegotiate).
5091 This is part of what -quiet does; unlike -quiet, -ign_eof
5092 does not suppress any output.
5095 *) Add compatibility options to the purpose and trust code. The
5096 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5097 accepts a certificate or CA, this was the previous behaviour,
5098 with all the associated security issues.
5100 X509_TRUST_COMPAT is the old trust behaviour: only and
5101 automatically trust self signed roots in certificate store. A
5102 new trust setting X509_TRUST_DEFAULT is used to specify that
5103 a purpose has no associated trust setting and it should instead
5104 use the value in the default purpose.
5107 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5108 and fix a memory leak.
5111 *) In util/mkerr.pl (which implements 'make errors'), preserve
5112 reason strings from the previous version of the .c file, as
5113 the default to have only downcase letters (and digits) in
5114 automatically generated reasons codes is not always appropriate.
5117 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5118 using strerror. Previously, ERR_reason_error_string() returned
5119 library names as reason strings for SYSerr; but SYSerr is a special
5120 case where small numbers are errno values, not library numbers.
5123 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5124 converts DSA parameters into DH parameters. (When creating parameters,
5125 DSA_generate_parameters is used.)
5128 *) Include 'length' (recommended exponent length) in C code generated
5129 by 'openssl dhparam -C'.
5132 *) The second argument to set_label in perlasm was already being used
5133 so couldn't be used as a "file scope" flag. Moved to third argument
5137 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5138 instead of RAND_bytes for encryption IVs and salts.
5141 *) Include RAND_status() into RAND_METHOD instead of implementing
5142 it only for md_rand.c Otherwise replacing the PRNG by calling
5143 RAND_set_rand_method would be impossible.
5146 *) Don't let DSA_generate_key() enter an infinite loop if the random
5147 number generation fails.
5150 *) New 'rand' application for creating pseudo-random output.
5153 *) Added configuration support for Linux/IA64
5154 [Rolf Haberrecker <rolf@suse.de>]
5156 *) Assembler module support for Mingw32.
5159 *) Shared library support for HPUX (in shlib/).
5160 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5162 *) Shared library support for Solaris gcc.
5163 [Lutz Behnke <behnke@trustcenter.de>]
5165 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5167 *) PKCS7_encrypt() was adding text MIME headers twice because they
5168 were added manually and by SMIME_crlf_copy().
5171 *) In bntest.c don't call BN_rand with zero bits argument.
5172 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5174 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5175 case was implemented. This caused BN_div_recp() to fail occasionally.
5178 *) Add an optional second argument to the set_label() in the perl
5179 assembly language builder. If this argument exists and is set
5180 to 1 it signals that the assembler should use a symbol whose
5181 scope is the entire file, not just the current function. This
5182 is needed with MASM which uses the format label:: for this scope.
5183 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5185 *) Change the ASN1 types so they are typedefs by default. Before
5186 almost all types were #define'd to ASN1_STRING which was causing
5187 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5191 *) Change names of new functions to the new get1/get0 naming
5192 convention: After 'get1', the caller owns a reference count
5193 and has to call ..._free; 'get0' returns a pointer to some
5194 data structure without incrementing reference counters.
5195 (Some of the existing 'get' functions increment a reference
5196 counter, some don't.)
5197 Similarly, 'set1' and 'add1' functions increase reference
5198 counters or duplicate objects.
5201 *) Allow for the possibility of temp RSA key generation failure:
5202 the code used to assume it always worked and crashed on failure.
5205 *) Fix potential buffer overrun problem in BIO_printf().
5206 [Ulf Möller, using public domain code by Patrick Powell; problem
5207 pointed out by David Sacerdote <das33@cornell.edu>]
5209 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5210 RAND_egd() and RAND_status(). In the command line application,
5211 the EGD socket can be specified like a seed file using RANDFILE
5215 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5216 Some CAs (e.g. Verisign) distribute certificates in this form.
5219 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5220 list to exclude them. This means that no special compilation option
5221 is needed to use anonymous DH: it just needs to be included in the
5225 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5226 EVP_MD_type. The old functionality is available in a new macro called
5227 EVP_MD_md(). Change code that uses it and update docs.
5230 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5231 where the 'void *' argument is replaced by a function pointer argument.
5232 Previously 'void *' was abused to point to functions, which works on
5233 many platforms, but is not correct. As these functions are usually
5234 called by macros defined in OpenSSL header files, most source code
5235 should work without changes.
5238 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5239 sections with information on -D... compiler switches used for
5240 compiling the library so that applications can see them. To enable
5241 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5242 must be defined. E.g.,
5243 #define OPENSSL_ALGORITHM_DEFINES
5244 #include <openssl/opensslconf.h>
5245 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5246 [Richard Levitte, Ulf and Bodo Möller]
5248 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5252 *) Change the 'other' type in certificate aux info to a STACK_OF
5253 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5254 the required ASN1 format: arbitrary types determined by an OID.
5257 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5258 argument to 'req'. This is not because the function is newer or
5259 better than others it just uses the work 'NEW' in the certificate
5260 request header lines. Some software needs this.
5263 *) Reorganise password command line arguments: now passwords can be
5264 obtained from various sources. Delete the PEM_cb function and make
5265 it the default behaviour: i.e. if the callback is NULL and the
5266 usrdata argument is not NULL interpret it as a null terminated pass
5267 phrase. If usrdata and the callback are NULL then the pass phrase
5268 is prompted for as usual.
5271 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5272 the support is automatically enabled. The resulting binaries will
5273 autodetect the card and use it if present.
5274 [Ben Laurie and Compaq Inc.]
5276 *) Work around for Netscape hang bug. This sends certificate request
5277 and server done in one record. Since this is perfectly legal in the
5278 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5279 the bugs/SSLv3 entry for more info.
5282 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5285 *) Add -rand argument to smime and pkcs12 applications and read/write
5289 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5292 *) Add command line password options to the remaining applications.
5295 *) Bug fix for BN_div_recp() for numerators with an even number of
5299 *) More tests in bntest.c, and changed test_bn output.
5302 *) ./config recognizes MacOS X now.
5305 *) Bug fix for BN_div() when the first words of num and divsor are
5306 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5309 *) Add support for various broken PKCS#8 formats, and command line
5310 options to produce them.
5313 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5314 get temporary BIGNUMs from a BN_CTX.
5317 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5321 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5322 include a #define from the old name to the new. The original intent
5323 was that statically linked binaries could for example just call
5324 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5325 link with digests. This never worked becayse SSLeay_add_all_digests()
5326 and SSLeay_add_all_ciphers() were in the same source file so calling
5327 one would link with the other. They are now in separate source files.
5330 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5333 *) Use a less unusual form of the Miller-Rabin primality test (it used
5334 a binary algorithm for exponentiation integrated into the Miller-Rabin
5335 loop, our standard modexp algorithms are faster).
5338 *) Support for the EBCDIC character set completed.
5339 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5341 *) Source code cleanups: use const where appropriate, eliminate casts,
5342 use void * instead of char * in lhash.
5345 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5346 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5347 this the server could overwrite ephemeral keys that the client
5351 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5352 using 50 iterations of the Rabin-Miller test.
5354 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5355 iterations of the Rabin-Miller test as required by the appendix
5356 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5357 As BN_is_prime_fasttest includes trial division, DSA parameter
5358 generation becomes much faster.
5360 This implies a change for the callback functions in DSA_is_prime
5361 and DSA_generate_parameters: The callback function is called once
5362 for each positive witness in the Rabin-Miller test, not just
5363 occasionally in the inner loop; and the parameters to the
5364 callback function now provide an iteration count for the outer
5365 loop rather than for the current invocation of the inner loop.
5366 DSA_generate_parameters additionally can call the callback
5367 function with an 'iteration count' of -1, meaning that a
5368 candidate has passed the trial division test (when q is generated
5369 from an application-provided seed, trial division is skipped).
5372 *) New function BN_is_prime_fasttest that optionally does trial
5373 division before starting the Rabin-Miller test and has
5374 an additional BN_CTX * argument (whereas BN_is_prime always
5375 has to allocate at least one BN_CTX).
5376 'callback(1, -1, cb_arg)' is called when a number has passed the
5377 trial division stage.
5380 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5384 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5387 *) New function BN_pseudo_rand().
5390 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5391 bignum version of BN_from_montgomery() with the working code from
5392 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5396 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5397 made it impossible to use the same SSL_SESSION data structure in
5398 SSL2 clients in multiple threads.
5401 *) The return value of RAND_load_file() no longer counts bytes obtained
5402 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5403 to seed the PRNG (previously an explicit byte count was required).
5404 [Ulf Möller, Bodo Möller]
5406 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5407 used (char *) instead of (void *) and had casts all over the place.
5410 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5413 *) Retain source code compatibility for BN_prime_checks macro:
5414 BN_is_prime(..., BN_prime_checks, ...) now uses
5415 BN_prime_checks_for_size to determine the appropriate number of
5416 Rabin-Miller iterations.
5419 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5420 DH_CHECK_P_NOT_SAFE_PRIME.
5421 (Check if this is true? OpenPGP calls them "strong".)
5424 *) Merge the functionality of "dh" and "gendh" programs into a new program
5425 "dhparam". The old programs are retained for now but will handle DH keys
5426 (instead of parameters) in future.
5429 *) Make the ciphers, s_server and s_client programs check the return values
5430 when a new cipher list is set.
5433 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5434 ciphers. Before when the 56bit ciphers were enabled the sorting was
5437 The syntax for the cipher sorting has been extended to support sorting by
5438 cipher-strength (using the strength_bits hard coded in the tables).
5439 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5441 Fix a bug in the cipher-command parser: when supplying a cipher command
5442 string with an "undefined" symbol (neither command nor alphanumeric
5443 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5444 an error is flagged.
5446 Due to the strength-sorting extension, the code of the
5447 ssl_create_cipher_list() function was completely rearranged. I hope that
5448 the readability was also increased :-)
5449 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5451 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5452 for the first serial number and places 2 in the serial number file. This
5453 avoids problems when the root CA is created with serial number zero and
5454 the first user certificate has the same issuer name and serial number
5458 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5459 the new code. Add documentation for this stuff.
5462 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5463 X509_*() to X509at_*() on the grounds that they don't handle X509
5464 structures and behave in an analagous way to the X509v3 functions:
5465 they shouldn't be called directly but wrapper functions should be used
5468 So we also now have some wrapper functions that call the X509at functions
5469 when passed certificate requests. (TO DO: similar things can be done with
5470 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5471 things. Some of these need some d2i or i2d and print functionality
5472 because they handle more complex structures.)
5475 *) Add missing #ifndefs that caused missing symbols when building libssl
5476 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5477 NO_RSA in ssl/s2*.c.
5478 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5480 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5481 has a return value which indicates the quality of the random data
5482 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5483 error queue. New function RAND_pseudo_bytes() generates output that is
5484 guaranteed to be unique but not unpredictable. RAND_add is like
5485 RAND_seed, but takes an extra argument for an entropy estimate
5486 (RAND_seed always assumes full entropy).
5489 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5490 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5491 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5492 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5493 false-positive rate of at most 2^-80 for random input.
5496 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5499 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5500 in the 0.9.5 release), this returns the chain
5501 from an X509_CTX structure with a dup of the stack and all
5502 the X509 reference counts upped: so the stack will exist
5503 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5506 Also make SSL_SESSION_print() print out the verify return
5510 *) Add manpage for the pkcs12 command. Also change the default
5511 behaviour so MAC iteration counts are used unless the new
5512 -nomaciter option is used. This improves file security and
5513 only older versions of MSIE (4.0 for example) need it.
5516 *) Honor the no-xxx Configure options when creating .DEF files.
5519 *) Add PKCS#10 attributes to field table: challengePassword,
5520 unstructuredName and unstructuredAddress. These are taken from
5521 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5522 international characters are used.
5524 More changes to X509_ATTRIBUTE code: allow the setting of types
5525 based on strings. Remove the 'loc' parameter when adding
5526 attributes because these will be a SET OF encoding which is sorted
5530 *) Initial changes to the 'req' utility to allow request generation
5531 automation. This will allow an application to just generate a template
5532 file containing all the field values and have req construct the
5535 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5536 used all over the place including certificate requests and PKCS#7
5537 structures. They are currently handled manually where necessary with
5538 some primitive wrappers for PKCS#7. The new functions behave in a
5539 manner analogous to the X509 extension functions: they allow
5540 attributes to be looked up by NID and added.
5542 Later something similar to the X509V3 code would be desirable to
5543 automatically handle the encoding, decoding and printing of the
5544 more complex types. The string types like challengePassword can
5545 be handled by the string table functions.
5547 Also modified the multi byte string table handling. Now there is
5548 a 'global mask' which masks out certain types. The table itself
5549 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5550 is useful when for example there is only one permissible type
5551 (as in countryName) and using the mask might result in no valid
5555 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5556 SSL_get_peer_finished to allow applications to obtain the latest
5557 Finished messages sent to the peer or expected from the peer,
5558 respectively. (SSL_get_peer_finished is usually the Finished message
5559 actually received from the peer, otherwise the protocol will be aborted.)
5561 As the Finished message are message digests of the complete handshake
5562 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5563 be used for external authentication procedures when the authentication
5564 provided by SSL/TLS is not desired or is not enough.
5567 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5568 the host supports BWX extension and if Compaq C is present on the
5569 $PATH. Just exploiting of the BWX extension results in 20-30%
5570 performance kick for some algorithms, e.g. DES and RC4 to mention
5571 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5575 *) Add support for MS "fast SGC". This is arguably a violation of the
5576 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5577 weak crypto and after checking the certificate is SGC a second one
5578 with strong crypto. MS SGC stops the first handshake after receiving
5579 the server certificate message and sends a second client hello. Since
5580 a server will typically do all the time consuming operations before
5581 expecting any further messages from the client (server key exchange
5582 is the most expensive) there is little difference between the two.
5584 To get OpenSSL to support MS SGC we have to permit a second client
5585 hello message after we have sent server done. In addition we have to
5586 reset the MAC if we do get this second client hello.
5589 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5590 if a DER encoded private key is RSA or DSA traditional format. Changed
5591 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5592 format DER encoded private key. Newer code should use PKCS#8 format which
5593 has the key type encoded in the ASN1 structure. Added DER private key
5594 support to pkcs8 application.
5597 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5598 ciphersuites has been selected (as required by the SSL 3/TLS 1
5599 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5600 is set, we interpret this as a request to violate the specification
5601 (the worst that can happen is a handshake failure, and 'correct'
5602 behaviour would result in a handshake failure anyway).
5605 *) In SSL_CTX_add_session, take into account that there might be multiple
5606 SSL_SESSION structures with the same session ID (e.g. when two threads
5607 concurrently obtain them from an external cache).
5608 The internal cache can handle only one SSL_SESSION with a given ID,
5609 so if there's a conflict, we now throw out the old one to achieve
5613 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5614 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5615 some routines that use cipher OIDs: some ciphers do not have OIDs
5616 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5620 *) Simplify the trust setting structure and code. Now we just have
5621 two sequences of OIDs for trusted and rejected settings. These will
5622 typically have values the same as the extended key usage extension
5623 and any application specific purposes.
5625 The trust checking code now has a default behaviour: it will just
5626 check for an object with the same NID as the passed id. Functions can
5627 be provided to override either the default behaviour or the behaviour
5628 for a given id. SSL client, server and email already have functions
5629 in place for compatibility: they check the NID and also return "trusted"
5630 if the certificate is self signed.
5633 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5634 traditional format into an EVP_PKEY structure.
5637 *) Add a password callback function PEM_cb() which either prompts for
5638 a password if usr_data is NULL or otherwise assumes it is a null
5639 terminated password. Allow passwords to be passed on command line
5640 environment or config files in a few more utilities.
5643 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5644 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5645 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5646 Update documentation.
5649 *) Support for ASN1 "NULL" type. This could be handled before by using
5650 ASN1_TYPE but there wasn't any function that would try to read a NULL
5651 and produce an error if it couldn't. For compatibility we also have
5652 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5653 don't allocate anything because they don't need to.
5656 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5658 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5660 *) Rebuild of the memory allocation routines used by OpenSSL code and
5661 possibly others as well. The purpose is to make an interface that
5662 provide hooks so anyone can build a separate set of allocation and
5663 deallocation routines to be used by OpenSSL, for example memory
5664 pool implementations, or something else, which was previously hard
5665 since Malloc(), Realloc() and Free() were defined as macros having
5666 the values malloc, realloc and free, respectively (except for Win32
5667 compilations). The same is provided for memory debugging code.
5668 OpenSSL already comes with functionality to find memory leaks, but
5669 this gives people a chance to debug other memory problems.
5671 With these changes, a new set of functions and macros have appeared:
5673 CRYPTO_set_mem_debug_functions() [F]
5674 CRYPTO_get_mem_debug_functions() [F]
5675 CRYPTO_dbg_set_options() [F]
5676 CRYPTO_dbg_get_options() [F]
5677 CRYPTO_malloc_debug_init() [M]
5679 The memory debug functions are NULL by default, unless the library
5680 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5681 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5682 gives the standard debugging functions that come with OpenSSL) or
5683 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5684 provided by the library user) must be used. When the standard
5685 debugging functions are used, CRYPTO_dbg_set_options can be used to
5686 request additional information:
5687 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5688 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5690 Also, things like CRYPTO_set_mem_functions will always give the
5691 expected result (the new set of functions is used for allocation
5692 and deallocation) at all times, regardless of platform and compiler
5695 To finish it up, some functions that were never use in any other
5696 way than through macros have a new API and new semantic:
5699 CRYPTO_dbg_realloc()
5702 All macros of value have retained their old syntax.
5703 [Richard Levitte and Bodo Moeller]
5705 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5706 ordering of SMIMECapabilities wasn't in "strength order" and there
5707 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5711 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5712 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5713 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5715 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5716 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5717 functionality to handle multipart/signed properly) and a utility
5718 called 'smime' to call all this stuff. This is based on code I
5719 originally wrote for Celo who have kindly allowed it to be
5720 included in OpenSSL.
5723 *) Add variants des_set_key_checked and des_set_key_unchecked of
5724 des_set_key (aka des_key_sched). Global variable des_check_key
5725 decides which of these is called by des_set_key; this way
5726 des_check_key behaves as it always did, but applications and
5727 the library itself, which was buggy for des_check_key == 1,
5728 have a cleaner way to pick the version they need.
5731 *) New function PKCS12_newpass() which changes the password of a
5735 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5736 dynamic mix. In both cases the ids can be used as an index into the
5737 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5738 functions so they accept a list of the field values and the
5739 application doesn't need to directly manipulate the X509_TRUST
5743 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5747 *) Modify the way the V3 extension code looks up extensions. This now
5748 works in a similar way to the object code: we have some "standard"
5749 extensions in a static table which is searched with OBJ_bsearch()
5750 and the application can add dynamic ones if needed. The file
5751 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5752 updated whenever a new extension is added to the core code and kept
5753 in ext_nid order. There is a simple program 'tabtest.c' which checks
5754 this. New extensions are not added too often so this file can readily
5755 be maintained manually.
5757 There are two big advantages in doing things this way. The extensions
5758 can be looked up immediately and no longer need to be "added" using
5759 X509V3_add_standard_extensions(): this function now does nothing.
5760 [Side note: I get *lots* of email saying the extension code doesn't
5761 work because people forget to call this function]
5762 Also no dynamic allocation is done unless new extensions are added:
5763 so if we don't add custom extensions there is no need to call
5764 X509V3_EXT_cleanup().
5767 *) Modify enc utility's salting as follows: make salting the default. Add a
5768 magic header, so unsalted files fail gracefully instead of just decrypting
5769 to garbage. This is because not salting is a big security hole, so people
5770 should be discouraged from doing it.
5773 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5774 digest to be passed on the command line but it only used this
5775 parameter when signing a certificate. Modified so all relevant
5776 operations are affected by the digest parameter including the
5777 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5778 DSA key was used because it didn't fix the digest.
5781 *) Initial certificate chain verify code. Currently tests the untrusted
5782 certificates for consistency with the verify purpose (which is set
5783 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5785 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5786 this is because it will reject chains with invalid extensions whereas
5787 every previous version of OpenSSL and SSLeay made no checks at all.
5789 Trust code: checks the root CA for the relevant trust settings. Trust
5790 settings have an initial value consistent with the verify purpose: e.g.
5791 if the verify purpose is for SSL client use it expects the CA to be
5792 trusted for SSL client use. However the default value can be changed to
5793 permit custom trust settings: one example of this would be to only trust
5794 certificates from a specific "secure" set of CAs.
5796 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5797 which should be used for version portability: especially since the
5798 verify structure is likely to change more often now.
5800 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5801 to set them. If not set then assume SSL clients will verify SSL servers
5804 Two new options to the verify program: -untrusted allows a set of
5805 untrusted certificates to be passed in and -purpose which sets the
5806 intended purpose of the certificate. If a purpose is set then the
5807 new chain verify code is used to check extension consistency.
5810 *) Support for the authority information access extension.
5813 *) Modify RSA and DSA PEM read routines to transparently handle
5814 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5815 public keys in a format compatible with certificate
5816 SubjectPublicKeyInfo structures. Unfortunately there were already
5817 functions called *_PublicKey_* which used various odd formats so
5818 these are retained for compatibility: however the DSA variants were
5819 never in a public release so they have been deleted. Changed dsa/rsa
5820 utilities to handle the new format: note no releases ever handled public
5821 keys so we should be OK.
5823 The primary motivation for this change is to avoid the same fiasco
5824 that dogs private keys: there are several incompatible private key
5825 formats some of which are standard and some OpenSSL specific and
5826 require various evil hacks to allow partial transparent handling and
5827 even then it doesn't work with DER formats. Given the option anything
5828 other than PKCS#8 should be dumped: but the other formats have to
5829 stay in the name of compatibility.
5831 With public keys and the benefit of hindsight one standard format
5832 is used which works with EVP_PKEY, RSA or DSA structures: though
5833 it clearly returns an error if you try to read the wrong kind of key.
5835 Added a -pubkey option to the 'x509' utility to output the public key.
5836 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5837 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5838 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5839 that do the same as the EVP_PKEY_assign_*() except they up the
5840 reference count of the added key (they don't "swallow" the
5844 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5845 CRLs would fail if the file contained no certificates or no CRLs:
5846 added a new function to read in both types and return the number
5847 read: this means that if none are read it will be an error. The
5848 DER versions of the certificate and CRL reader would always fail
5849 because it isn't possible to mix certificates and CRLs in DER format
5850 without choking one or the other routine. Changed this to just read
5851 a certificate: this is the best we can do. Also modified the code
5852 in apps/verify.c to take notice of return codes: it was previously
5853 attempting to read in certificates from NULL pointers and ignoring
5854 any errors: this is one reason why the cert and CRL reader seemed
5855 to work. It doesn't check return codes from the default certificate
5856 routines: these may well fail if the certificates aren't installed.
5859 *) Code to support otherName option in GeneralName.
5862 *) First update to verify code. Change the verify utility
5863 so it warns if it is passed a self signed certificate:
5864 for consistency with the normal behaviour. X509_verify
5865 has been modified to it will now verify a self signed
5866 certificate if *exactly* the same certificate appears
5867 in the store: it was previously impossible to trust a
5868 single self signed certificate. This means that:
5869 openssl verify ss.pem
5870 now gives a warning about a self signed certificate but
5871 openssl verify -CAfile ss.pem ss.pem
5875 *) For servers, store verify_result in SSL_SESSION data structure
5876 (and add it to external session representation).
5877 This is needed when client certificate verifications fails,
5878 but an application-provided verification callback (set by
5879 SSL_CTX_set_cert_verify_callback) allows accepting the session
5880 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5881 but returns 1): When the session is reused, we have to set
5882 ssl->verify_result to the appropriate error code to avoid
5884 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5886 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5887 case in PKCS7_dataInit() where the signed PKCS7 structure
5888 didn't contain any existing data because it was being created.
5889 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5891 *) Add a salt to the key derivation routines in enc.c. This
5892 forms the first 8 bytes of the encrypted file. Also add a
5893 -S option to allow a salt to be input on the command line.
5896 *) New function X509_cmp(). Oddly enough there wasn't a function
5897 to compare two certificates. We do this by working out the SHA1
5898 hash and comparing that. X509_cmp() will be needed by the trust
5902 *) SSL_get1_session() is like SSL_get_session(), but increments
5903 the reference count in the SSL_SESSION returned.
5904 [Geoff Thorpe <geoff@eu.c2.net>]
5906 *) Fix for 'req': it was adding a null to request attributes.
5907 Also change the X509_LOOKUP and X509_INFO code to handle
5908 certificate auxiliary information.
5911 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5915 *) Add the possibility to add extra information to the memory leak
5916 detecting output, to form tracebacks, showing from where each
5917 allocation was originated: CRYPTO_push_info("constant string") adds
5918 the string plus current file name and line number to a per-thread
5919 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5920 is like calling CYRPTO_pop_info() until the stack is empty.
5921 Also updated memory leak detection code to be multi-thread-safe.
5924 *) Add options -text and -noout to pkcs7 utility and delete the
5925 encryption options which never did anything. Update docs.
5928 *) Add options to some of the utilities to allow the pass phrase
5929 to be included on either the command line (not recommended on
5930 OSes like Unix) or read from the environment. Update the
5931 manpages and fix a few bugs.
5934 *) Add a few manpages for some of the openssl commands.
5937 *) Fix the -revoke option in ca. It was freeing up memory twice,
5938 leaking and not finding already revoked certificates.
5941 *) Extensive changes to support certificate auxiliary information.
5942 This involves the use of X509_CERT_AUX structure and X509_AUX
5943 functions. An X509_AUX function such as PEM_read_X509_AUX()
5944 can still read in a certificate file in the usual way but it
5945 will also read in any additional "auxiliary information". By
5946 doing things this way a fair degree of compatibility can be
5947 retained: existing certificates can have this information added
5948 using the new 'x509' options.
5950 Current auxiliary information includes an "alias" and some trust
5951 settings. The trust settings will ultimately be used in enhanced
5952 certificate chain verification routines: currently a certificate
5953 can only be trusted if it is self signed and then it is trusted
5957 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5958 The problem was that one of the replacement routines had not been working
5959 since SSLeay releases. For now the offending routine has been replaced
5960 with non-optimised assembler. Even so, this now gives around 95%
5961 performance improvement for 1024 bit RSA signs.
5964 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5965 handling. Most clients have the effective key size in bits equal to
5966 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5967 A few however don't do this and instead use the size of the decrypted key
5968 to determine the RC2 key length and the AlgorithmIdentifier to determine
5969 the effective key length. In this case the effective key length can still
5970 be 40 bits but the key length can be 168 bits for example. This is fixed
5971 by manually forcing an RC2 key into the EVP_PKEY structure because the
5972 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5973 the key length and effective key length are equal.
5976 *) Add a bunch of functions that should simplify the creation of
5977 X509_NAME structures. Now you should be able to do:
5978 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5979 and have it automatically work out the correct field type and fill in
5980 the structures. The more adventurous can try:
5981 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5982 and it will (hopefully) work out the correct multibyte encoding.
5985 *) Change the 'req' utility to use the new field handling and multibyte
5986 copy routines. Before the DN field creation was handled in an ad hoc
5987 way in req, ca, and x509 which was rather broken and didn't support
5988 BMPStrings or UTF8Strings. Since some software doesn't implement
5989 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5990 using the dirstring_type option. See the new comment in the default
5991 openssl.cnf for more info.
5994 *) Make crypto/rand/md_rand.c more robust:
5995 - Assure unique random numbers after fork().
5996 - Make sure that concurrent threads access the global counter and
5997 md serializably so that we never lose entropy in them
5998 or use exactly the same state in multiple threads.
5999 Access to the large state is not always serializable because
6000 the additional locking could be a performance killer, and
6001 md should be large enough anyway.
6004 *) New file apps/app_rand.c with commonly needed functionality
6005 for handling the random seed file.
6007 Use the random seed file in some applications that previously did not:
6009 dsaparam -genkey (which also ignored its '-rand' option),
6012 x509 (when signing).
6013 Except on systems with /dev/urandom, it is crucial to have a random
6014 seed file at least for key creation, DSA signing, and for DH exchanges;
6015 for RSA signatures we could do without one.
6017 gendh and gendsa (unlike genrsa) used to read only the first byte
6018 of each file listed in the '-rand' option. The function as previously
6019 found in genrsa is now in app_rand.c and is used by all programs
6020 that support '-rand'.
6023 *) In RAND_write_file, use mode 0600 for creating files;
6024 don't just chmod when it may be too late.
6027 *) Report an error from X509_STORE_load_locations
6028 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6031 *) New function ASN1_mbstring_copy() this copies a string in either
6032 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6033 into an ASN1_STRING type. A mask of permissible types is passed
6034 and it chooses the "minimal" type to use or an error if not type
6038 *) Add function equivalents to the various macros in asn1.h. The old
6039 macros are retained with an M_ prefix. Code inside the library can
6040 use the M_ macros. External code (including the openssl utility)
6041 should *NOT* in order to be "shared library friendly".
6044 *) Add various functions that can check a certificate's extensions
6045 to see if it usable for various purposes such as SSL client,
6046 server or S/MIME and CAs of these types. This is currently
6047 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6048 verification. Also added a -purpose flag to x509 utility to
6049 print out all the purposes.
6052 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6056 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6057 for, obtain and decode and extension and obtain its critical flag.
6058 This allows all the necessary extension code to be handled in a
6059 single function call.
6062 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6063 platforms. See crypto/rc4/rc4_enc.c for further details.
6066 *) New -noout option to asn1parse. This causes no output to be produced
6067 its main use is when combined with -strparse and -out to extract data
6068 from a file (which may not be in ASN.1 format).
6071 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6072 when producing the local key id.
6073 [Richard Levitte <levitte@stacken.kth.se>]
6075 *) New option -dhparam in s_server. This allows a DH parameter file to be
6076 stated explicitly. If it is not stated then it tries the first server
6077 certificate file. The previous behaviour hard coded the filename
6081 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6082 a public key to be input or output. For example:
6083 openssl rsa -in key.pem -pubout -out pubkey.pem
6084 Also added necessary DSA public key functions to handle this.
6087 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6088 in the message. This was handled by allowing
6089 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6090 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6092 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6093 to the end of the strings whereas this didn't. This would cause problems
6094 if strings read with d2i_ASN1_bytes() were later modified.
6095 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6097 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6098 data and it contains EOF it will end up returning an error. This is
6099 caused by input 46 bytes long. The cause is due to the way base64
6100 BIOs find the start of base64 encoded data. They do this by trying a
6101 trial decode on each line until they find one that works. When they
6102 do a flag is set and it starts again knowing it can pass all the
6103 data directly through the decoder. Unfortunately it doesn't reset
6104 the context it uses. This means that if EOF is reached an attempt
6105 is made to pass two EOFs through the context and this causes the
6106 resulting error. This can also cause other problems as well. As is
6107 usual with these problems it takes *ages* to find and the fix is
6108 trivial: move one line.
6109 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6111 *) Ugly workaround to get s_client and s_server working under Windows. The
6112 old code wouldn't work because it needed to select() on sockets and the
6113 tty (for keypresses and to see if data could be written). Win32 only
6114 supports select() on sockets so we select() with a 1s timeout on the
6115 sockets and then see if any characters are waiting to be read, if none
6116 are present then we retry, we also assume we can always write data to
6117 the tty. This isn't nice because the code then blocks until we've
6118 received a complete line of data and it is effectively polling the
6119 keyboard at 1s intervals: however it's quite a bit better than not
6120 working at all :-) A dedicated Windows application might handle this
6121 with an event loop for example.
6124 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6125 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6126 will be called when RSA_sign() and RSA_verify() are used. This is useful
6127 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6128 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6129 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6130 This necessitated the support of an extra signature type NID_md5_sha1
6131 for SSL signatures and modifications to the SSL library to use it instead
6132 of calling RSA_public_decrypt() and RSA_private_encrypt().
6135 *) Add new -verify -CAfile and -CApath options to the crl program, these
6136 will lookup a CRL issuers certificate and verify the signature in a
6137 similar way to the verify program. Tidy up the crl program so it
6138 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6139 less strict. It will now permit CRL extensions even if it is not
6140 a V2 CRL: this will allow it to tolerate some broken CRLs.
6143 *) Initialize all non-automatic variables each time one of the openssl
6144 sub-programs is started (this is necessary as they may be started
6145 multiple times from the "OpenSSL>" prompt).
6146 [Lennart Bang, Bodo Moeller]
6148 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6149 removing all other RSA functionality (this is what NO_RSA does). This
6150 is so (for example) those in the US can disable those operations covered
6151 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6155 *) Non-copying interface to BIO pairs.
6156 (still largely untested)
6159 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6160 ASCII string. This was handled independently in various places before.
6163 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6164 UTF8 strings a character at a time.
6167 *) Use client_version from client hello to select the protocol
6168 (s23_srvr.c) and for RSA client key exchange verification
6169 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6172 *) Add various utility functions to handle SPKACs, these were previously
6173 handled by poking round in the structure internals. Added new function
6174 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6175 print, verify and generate SPKACs. Based on an original idea from
6176 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6179 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6182 *) Allow the config file extension section to be overwritten on the
6183 command line. Based on an original idea from Massimiliano Pala
6184 <madwolf@comune.modena.it>. The new option is called -extensions
6185 and can be applied to ca, req and x509. Also -reqexts to override
6186 the request extensions in req and -crlexts to override the crl extensions
6190 *) Add new feature to the SPKAC handling in ca. Now you can include
6191 the same field multiple times by preceding it by "XXXX." for example:
6194 this is the same syntax as used in the req config file.
6197 *) Allow certificate extensions to be added to certificate requests. These
6198 are specified in a 'req_extensions' option of the req section of the
6199 config file. They can be printed out with the -text option to req but
6200 are otherwise ignored at present.
6203 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6204 data read consists of only the final block it would not decrypted because
6205 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6206 A misplaced 'break' also meant the decrypted final block might not be
6207 copied until the next read.
6210 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6211 a few extra parameters to the DH structure: these will be useful if
6212 for example we want the value of 'q' or implement X9.42 DH.
6215 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6216 provides hooks that allow the default DSA functions or functions on a
6217 "per key" basis to be replaced. This allows hardware acceleration and
6218 hardware key storage to be handled without major modification to the
6219 library. Also added low level modexp hooks and CRYPTO_EX structure and
6220 associated functions.
6223 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6224 as "read only": it can't be written to and the buffer it points to will
6225 not be freed. Reading from a read only BIO is much more efficient than
6226 a normal memory BIO. This was added because there are several times when
6227 an area of memory needs to be read from a BIO. The previous method was
6228 to create a memory BIO and write the data to it, this results in two
6229 copies of the data and an O(n^2) reading algorithm. There is a new
6230 function BIO_new_mem_buf() which creates a read only memory BIO from
6231 an area of memory. Also modified the PKCS#7 routines to use read only
6235 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6236 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6237 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6238 but a retry condition occured while trying to read the rest.
6241 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6242 NID_pkcs7_encrypted by default: this was wrong since this should almost
6243 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6244 the encrypted data type: this is a more sensible place to put it and it
6245 allows the PKCS#12 code to be tidied up that duplicated this
6249 *) Changed obj_dat.pl script so it takes its input and output files on
6250 the command line. This should avoid shell escape redirection problems
6254 *) Initial support for certificate extension requests, these are included
6255 in things like Xenroll certificate requests. Included functions to allow
6256 extensions to be obtained and added.
6259 *) -crlf option to s_client and s_server for sending newlines as
6260 CRLF (as required by many protocols).
6263 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6265 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6266 [Ralf S. Engelschall]
6268 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6269 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6271 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6275 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6276 DH parameters/keys (q is lost during that conversion, but the resulting
6277 DH parameters contain its length).
6279 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6280 much faster than DH_generate_parameters (which creates parameters
6281 where p = 2*q + 1), and also the smaller q makes DH computations
6282 much more efficient (160-bit exponentiation instead of 1024-bit
6283 exponentiation); so this provides a convenient way to support DHE
6284 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6285 utter importance to use
6286 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6288 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6289 when such DH parameters are used, because otherwise small subgroup
6290 attacks may become possible!
6293 *) Avoid memory leak in i2d_DHparams.
6296 *) Allow the -k option to be used more than once in the enc program:
6297 this allows the same encrypted message to be read by multiple recipients.
6300 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6301 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6302 it will always use the numerical form of the OID, even if it has a short
6306 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6307 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6308 otherwise bn_mod_exp was called. In the case of hardware keys for example
6309 no private key components need be present and it might store extra data
6310 in the RSA structure, which cannot be accessed from bn_mod_exp.
6311 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6312 private key operations.
6315 *) Added support for SPARC Linux.
6318 *) pem_password_cb function type incompatibly changed from
6319 typedef int pem_password_cb(char *buf, int size, int rwflag);
6321 ....(char *buf, int size, int rwflag, void *userdata);
6322 so that applications can pass data to their callbacks:
6323 The PEM[_ASN1]_{read,write}... functions and macros now take an
6324 additional void * argument, which is just handed through whenever
6325 the password callback is called.
6326 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6328 New function SSL_CTX_set_default_passwd_cb_userdata.
6330 Compatibility note: As many C implementations push function arguments
6331 onto the stack in reverse order, the new library version is likely to
6332 interoperate with programs that have been compiled with the old
6333 pem_password_cb definition (PEM_whatever takes some data that
6334 happens to be on the stack as its last argument, and the callback
6335 just ignores this garbage); but there is no guarantee whatsoever that
6338 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6339 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6340 problems not only on Windows, but also on some Unix platforms.
6341 To avoid problematic command lines, these definitions are now in an
6342 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6343 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6346 *) MIPS III/IV assembler module is reimplemented.
6349 *) More DES library cleanups: remove references to srand/rand and
6350 delete an unused file.
6353 *) Add support for the the free Netwide assembler (NASM) under Win32,
6354 since not many people have MASM (ml) and it can be hard to obtain.
6355 This is currently experimental but it seems to work OK and pass all
6356 the tests. Check out INSTALL.W32 for info.
6359 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6360 without temporary keys kept an extra copy of the server key,
6361 and connections with temporary keys did not free everything in case
6365 *) New function RSA_check_key and new openssl rsa option -check
6366 for verifying the consistency of RSA keys.
6367 [Ulf Moeller, Bodo Moeller]
6369 *) Various changes to make Win32 compile work:
6370 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6371 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6372 comparison" warnings.
6373 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6376 *) Add a debugging option to PKCS#5 v2 key generation function: when
6377 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6378 derived keys are printed to stderr.
6381 *) Copy the flags in ASN1_STRING_dup().
6382 [Roman E. Pavlov <pre@mo.msk.ru>]
6384 *) The x509 application mishandled signing requests containing DSA
6385 keys when the signing key was also DSA and the parameters didn't match.
6387 It was supposed to omit the parameters when they matched the signing key:
6388 the verifying software was then supposed to automatically use the CA's
6389 parameters if they were absent from the end user certificate.
6391 Omitting parameters is no longer recommended. The test was also
6392 the wrong way round! This was probably due to unusual behaviour in
6393 EVP_cmp_parameters() which returns 1 if the parameters match.
6394 This meant that parameters were omitted when they *didn't* match and
6395 the certificate was useless. Certificates signed with 'ca' didn't have
6397 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6399 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6400 The interface is as follows:
6401 Applications can use
6402 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6403 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6404 "off" is now the default.
6405 The library internally uses
6406 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6407 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6408 to disable memory-checking temporarily.
6410 Some inconsistent states that previously were possible (and were
6411 even the default) are now avoided.
6413 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6414 with each memory chunk allocated; this is occasionally more helpful
6415 than just having a counter.
6417 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6419 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6423 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6424 which largely parallels "options", but is for changing API behaviour,
6425 whereas "options" are about protocol behaviour.
6426 Initial "mode" flags are:
6428 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6429 a single record has been written.
6430 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6431 retries use the same buffer location.
6432 (But all of the contents must be
6436 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6439 *) Fix problems with no-hmac etc.
6440 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6442 *) New functions RSA_get_default_method(), RSA_set_method() and
6443 RSA_get_method(). These allows replacement of RSA_METHODs without having
6444 to mess around with the internals of an RSA structure.
6447 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6448 Also really enable memory leak checks in openssl.c and in some
6450 [Chad C. Mulligan, Bodo Moeller]
6452 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6453 up the length of negative integers. This has now been simplified to just
6454 store the length when it is first determined and use it later, rather
6455 than trying to keep track of where data is copied and updating it to
6457 [Steve Henson, reported by Brien Wheeler
6458 <bwheeler@authentica-security.com>]
6460 *) Add a new function PKCS7_signatureVerify. This allows the verification
6461 of a PKCS#7 signature but with the signing certificate passed to the
6462 function itself. This contrasts with PKCS7_dataVerify which assumes the
6463 certificate is present in the PKCS#7 structure. This isn't always the
6464 case: certificates can be omitted from a PKCS#7 structure and be
6465 distributed by "out of band" means (such as a certificate database).
6468 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6469 function prototypes in pem.h, also change util/mkdef.pl to add the
6470 necessary function names.
6473 *) mk1mf.pl (used by Windows builds) did not properly read the
6474 options set by Configure in the top level Makefile, and Configure
6475 was not even able to write more than one option correctly.
6476 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6479 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6480 file to be loaded from a BIO or FILE pointer. The BIO version will
6481 for example allow memory BIOs to contain config info.
6484 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6485 Whoever hopes to achieve shared-library compatibility across versions
6486 must use this, not the compile-time macro.
6487 (Exercise 0.9.4: Which is the minimum library version required by
6489 Note: All this applies only to multi-threaded programs, others don't
6493 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6494 through a BIO pair triggered the default case, i.e.
6495 SSLerr(...,SSL_R_UNKNOWN_STATE).
6498 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6499 can use the SSL library even if none of the specific BIOs is
6503 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6504 for the encoded length.
6505 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6507 *) Add initial documentation of the X509V3 functions.
6510 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6511 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6512 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6513 secure PKCS#8 private key format with a high iteration count.
6516 *) Fix determination of Perl interpreter: A perl or perl5
6517 _directory_ in $PATH was also accepted as the interpreter.
6518 [Ralf S. Engelschall]
6520 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6521 wrong with it but it was very old and did things like calling
6522 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6526 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6527 to use the new extension code.
6530 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6531 with macros. This should make it easier to change their form, add extra
6532 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6536 *) Add to configuration table a new entry that can specify an alternative
6537 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6538 according to Mark Crispin <MRC@Panda.COM>.
6542 *) DES CBC did not update the IV. Weird.
6545 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6546 Changing the behaviour of the former might break existing programs --
6547 where IV updating is needed, des_ncbc_encrypt can be used.
6550 *) When bntest is run from "make test" it drives bc to check its
6551 calculations, as well as internally checking them. If an internal check
6552 fails, it needs to cause bc to give a non-zero result or make test carries
6553 on without noticing the failure. Fixed.
6556 *) DES library cleanups.
6559 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6560 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6561 ciphers. NOTE: although the key derivation function has been verified
6562 against some published test vectors it has not been extensively tested
6563 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6567 *) Instead of "mkdir -p", which is not fully portable, use new
6568 Perl script "util/mkdir-p.pl".
6571 *) Rewrite the way password based encryption (PBE) is handled. It used to
6572 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6573 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6574 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6575 the 'parameter' field of the AlgorithmIdentifier is passed to the
6576 underlying key generation function so it must do its own ASN1 parsing.
6577 This has also changed the EVP_PBE_CipherInit() function which now has a
6578 'parameter' argument instead of literal salt and iteration count values
6579 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6582 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6583 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6584 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6585 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6586 value was just used as a "magic string" and not used directly its
6587 value doesn't matter.
6590 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6594 *) "linux-sparc64" configuration (ultrapenguin).
6595 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6596 "linux-sparc" configuration.
6597 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6599 *) config now generates no-xxx options for missing ciphers.
6602 *) Support the EBCDIC character set (work in progress).
6603 File ebcdic.c not yet included because it has a different license.
6604 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6606 *) Support BS2000/OSD-POSIX.
6607 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6609 *) Make callbacks for key generation use void * instead of char *.
6612 *) Make S/MIME samples compile (not yet tested).
6615 *) Additional typesafe stacks.
6618 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6622 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6624 *) New configuration variant "sco5-gcc".
6626 *) Updated some demos.
6627 [Sean O Riordain, Wade Scholine]
6629 *) Add missing BIO_free at exit of pkcs12 application.
6632 *) Fix memory leak in conf.c.
6635 *) Updates for Win32 to assembler version of MD5.
6638 *) Set #! path to perl in apps/der_chop to where we found it
6639 instead of using a fixed path.
6642 *) SHA library changes for irix64-mips4-cc.
6645 *) Improvements for VMS support.
6649 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6651 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6652 This also avoids the problems with SC4.2 and unpatched SC5.
6653 [Andy Polyakov <appro@fy.chalmers.se>]
6655 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6656 These are required because of the typesafe stack would otherwise break
6657 existing code. If old code used a structure member which used to be STACK
6658 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6659 sk_num or sk_value it would produce an error because the num, data members
6660 are not present in STACK_OF. Now it just produces a warning. sk_set
6661 replaces the old method of assigning a value to sk_value
6662 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6663 that does this will no longer work (and should use sk_set instead) but
6664 this could be regarded as a "questionable" behaviour anyway.
6667 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6668 correctly handle encrypted S/MIME data.
6671 *) Change type of various DES function arguments from des_cblock
6672 (which means, in function argument declarations, pointer to char)
6673 to des_cblock * (meaning pointer to array with 8 char elements),
6674 which allows the compiler to do more typechecking; it was like
6675 that back in SSLeay, but with lots of ugly casts.
6677 Introduce new type const_des_cblock.
6680 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6681 problems: find RecipientInfo structure that matches recipient certificate
6682 and initialise the ASN1 structures properly based on passed cipher.
6685 *) Belatedly make the BN tests actually check the results.
6688 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6689 to and from BNs: it was completely broken. New compilation option
6690 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6691 key elements as negative integers.
6694 *) Reorganize and speed up MD5.
6695 [Andy Polyakov <appro@fy.chalmers.se>]
6698 [Richard Levitte <richard@levitte.org>]
6700 *) New option -out to asn1parse to allow the parsed structure to be
6701 output to a file. This is most useful when combined with the -strparse
6702 option to examine the output of things like OCTET STRINGS.
6705 *) Make SSL library a little more fool-proof by not requiring any longer
6706 that SSL_set_{accept,connect}_state be called before
6707 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6708 in many applications because usually everything *appeared* to work as
6709 intended anyway -- now it really works as intended).
6712 *) Move openssl.cnf out of lib/.
6715 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6716 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6717 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6718 [Ralf S. Engelschall]
6720 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6721 handle PKCS#7 enveloped data properly.
6722 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6724 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6725 copying pointers. The cert_st handling is changed by this in
6726 various ways (and thus what used to be known as ctx->default_cert
6727 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6728 any longer when s->cert does not give us what we need).
6729 ssl_cert_instantiate becomes obsolete by this change.
6730 As soon as we've got the new code right (possibly it already is?),
6731 we have solved a couple of bugs of the earlier code where s->cert
6732 was used as if it could not have been shared with other SSL structures.
6734 Note that using the SSL API in certain dirty ways now will result
6735 in different behaviour than observed with earlier library versions:
6736 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6737 does not influence s as it used to.
6739 In order to clean up things more thoroughly, inside SSL_SESSION
6740 we don't use CERT any longer, but a new structure SESS_CERT
6741 that holds per-session data (if available); currently, this is
6742 the peer's certificate chain and, for clients, the server's certificate
6743 and temporary key. CERT holds only those values that can have
6744 meaningful defaults in an SSL_CTX.
6747 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6748 from the internal representation. Various PKCS#7 fixes: remove some
6749 evil casts and set the enc_dig_alg field properly based on the signing
6753 *) Allow PKCS#12 password to be set from the command line or the
6754 environment. Let 'ca' get its config file name from the environment
6755 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6759 *) Allow certificate policies extension to use an IA5STRING for the
6760 organization field. This is contrary to the PKIX definition but
6761 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6765 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6766 without disallowing inline assembler and the like for non-pedantic builds.
6769 *) Support Borland C++ builder.
6770 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6775 *) SHA-1 cleanups and performance enhancements.
6776 [Andy Polyakov <appro@fy.chalmers.se>]
6778 *) Sparc v8plus assembler for the bignum library.
6779 [Andy Polyakov <appro@fy.chalmers.se>]
6781 *) Accept any -xxx and +xxx compiler options in Configure.
6784 *) Update HPUX configuration.
6787 *) Add missing sk_<type>_unshift() function to safestack.h
6788 [Ralf S. Engelschall]
6790 *) New function SSL_CTX_use_certificate_chain_file that sets the
6791 "extra_cert"s in addition to the certificate. (This makes sense
6792 only for "PEM" format files, as chains as a whole are not
6796 *) Support verify_depth from the SSL API.
6797 x509_vfy.c had what can be considered an off-by-one-error:
6798 Its depth (which was not part of the external interface)
6799 was actually counting the number of certificates in a chain;
6800 now it really counts the depth.
6803 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6804 instead of X509err, which often resulted in confusing error
6805 messages since the error codes are not globally unique
6806 (e.g. an alleged error in ssl3_accept when a certificate
6807 didn't match the private key).
6809 *) New function SSL_CTX_set_session_id_context that allows to set a default
6810 value (so that you don't need SSL_set_session_id_context for each
6811 connection using the SSL_CTX).
6814 *) OAEP decoding bug fix.
6817 *) Support INSTALL_PREFIX for package builders, as proposed by
6821 *) New Configure options "threads" and "no-threads". For systems
6822 where the proper compiler options are known (currently Solaris
6823 and Linux), "threads" is the default.
6826 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6829 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6830 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6831 such as /usr/local/bin.
6834 *) "make linux-shared" to build shared libraries.
6835 [Niels Poppe <niels@netbox.org>]
6837 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6840 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6841 extension adding in x509 utility.
6844 *) Remove NOPROTO sections and error code comments.
6847 *) Partial rewrite of the DEF file generator to now parse the ANSI
6851 *) New Configure options --prefix=DIR and --openssldir=DIR.
6854 *) Complete rewrite of the error code script(s). It is all now handled
6855 by one script at the top level which handles error code gathering,
6856 header rewriting and C source file generation. It should be much better
6857 than the old method: it now uses a modified version of Ulf's parser to
6858 read the ANSI prototypes in all header files (thus the old K&R definitions
6859 aren't needed for error creation any more) and do a better job of
6860 translating function codes into names. The old 'ASN1 error code imbedded
6861 in a comment' is no longer necessary and it doesn't use .err files which
6862 have now been deleted. Also the error code call doesn't have to appear all
6863 on one line (which resulted in some large lines...).
6866 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6869 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6870 0 (which usually indicates a closed connection), but continue reading.
6873 *) Fix some race conditions.
6876 *) Add support for CRL distribution points extension. Add Certificate
6877 Policies and CRL distribution points documentation.
6880 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6883 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6884 8 of keying material. Merlin has also confirmed interop with this fix
6885 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6886 [Merlin Hughes <merlin@baltimore.ie>]
6888 *) Fix lots of warnings.
6889 [Richard Levitte <levitte@stacken.kth.se>]
6891 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6892 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6893 [Richard Levitte <levitte@stacken.kth.se>]
6895 *) Fix problems with sizeof(long) == 8.
6896 [Andy Polyakov <appro@fy.chalmers.se>]
6898 *) Change functions to ANSI C.
6901 *) Fix typos in error codes.
6902 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6904 *) Remove defunct assembler files from Configure.
6907 *) SPARC v8 assembler BIGNUM implementation.
6908 [Andy Polyakov <appro@fy.chalmers.se>]
6910 *) Support for Certificate Policies extension: both print and set.
6911 Various additions to support the r2i method this uses.
6914 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6915 return a const string when you are expecting an allocated buffer.
6918 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6919 types DirectoryString and DisplayText.
6922 *) Add code to allow r2i extensions to access the configuration database,
6923 add an LHASH database driver and add several ctx helper functions.
6926 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6927 fail when they extended the size of a BIGNUM.
6930 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6931 support typesafe stack.
6934 *) Fix typo in SSL_[gs]et_options().
6935 [Nils Frostberg <nils@medcom.se>]
6937 *) Delete various functions and files that belonged to the (now obsolete)
6938 old X509V3 handling code.
6941 *) New Configure option "rsaref".
6944 *) Don't auto-generate pem.h.
6947 *) Introduce type-safe ASN.1 SETs.
6950 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6951 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6953 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6954 that links with OpenSSL (well at least cause lots of warnings), but fear
6955 not: the conversion is trivial, and it eliminates loads of evil casts. A
6956 few STACKed things have been converted already. Feel free to convert more.
6957 In the fullness of time, I'll do away with the STACK type altogether.
6960 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6961 specified in <certfile> by updating the entry in the index.txt file.
6962 This way one no longer has to edit the index.txt file manually for
6963 revoking a certificate. The -revoke option does the gory details now.
6964 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6966 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6967 `-text' option at all and this way the `-noout -text' combination was
6968 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6969 [Ralf S. Engelschall]
6971 *) Make sure a corresponding plain text error message exists for the
6972 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6973 verify callback function determined that a certificate was revoked.
6974 [Ralf S. Engelschall]
6976 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6977 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6978 all available cipers including rc5, which was forgotten until now.
6979 In order to let the testing shell script know which algorithms
6980 are available, a new (up to now undocumented) command
6981 "openssl list-cipher-commands" is used.
6984 *) Bugfix: s_client occasionally would sleep in select() when
6985 it should have checked SSL_pending() first.
6988 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6989 the raw DSA values prior to ASN.1 encoding.
6992 *) Tweaks to Configure
6993 [Niels Poppe <niels@netbox.org>]
6995 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6999 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7002 *) New config option to avoid instructions that are illegal on the 80386.
7003 The default code is faster, but requires at least a 486.
7006 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7007 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7008 same as SSL2_VERSION anyway.
7011 *) New "-showcerts" option for s_client.
7014 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7015 application. Various cleanups and fixes.
7018 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7019 modify error routines to work internally. Add error codes and PBE init
7020 to library startup routines.
7023 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7024 packing functions to asn1 and evp. Changed function names and error
7025 codes along the way.
7028 *) PKCS12 integration: and so it begins... First of several patches to
7029 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7030 objects to objects.h
7033 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7034 and display support for Thawte strong extranet extension.
7037 *) Add LinuxPPC support.
7038 [Jeff Dubrule <igor@pobox.org>]
7040 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7041 bn_div_words in alpha.s.
7042 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7044 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7045 OAEP isn't supported when OpenSSL is built with RSAref.
7046 [Ulf Moeller <ulf@fitug.de>]
7048 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7049 so they no longer are missing under -DNOPROTO.
7050 [Soren S. Jorvang <soren@t.dk>]
7053 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7055 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7056 doesn't work when the session is reused. Coming soon!
7059 *) Fix a security hole, that allows sessions to be reused in the wrong
7060 context thus bypassing client cert protection! All software that uses
7061 client certs and session caches in multiple contexts NEEDS PATCHING to
7062 allow session reuse! A fuller solution is in the works.
7063 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7065 *) Some more source tree cleanups (removed obsolete files
7066 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7067 permission on "config" script to be executable) and a fix for the INSTALL
7069 [Ulf Moeller <ulf@fitug.de>]
7071 *) Remove some legacy and erroneous uses of malloc, free instead of
7073 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7075 *) Make rsa_oaep_test return non-zero on error.
7076 [Ulf Moeller <ulf@fitug.de>]
7078 *) Add support for native Solaris shared libraries. Configure
7079 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7080 if someone would make that last step automatic.
7081 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7083 *) ctx_size was not built with the right compiler during "make links". Fixed.
7086 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7087 except NULL ciphers". This means the default cipher list will no longer
7088 enable NULL ciphers. They need to be specifically enabled e.g. with
7089 the string "DEFAULT:eNULL".
7092 *) Fix to RSA private encryption routines: if p < q then it would
7093 occasionally produce an invalid result. This will only happen with
7094 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7097 *) Be less restrictive and allow also `perl util/perlpath.pl
7098 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7099 because this way one can also use an interpreter named `perl5' (which is
7100 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7101 installed as `perl').
7102 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7104 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7105 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7107 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7108 advapi32.lib to Win32 build and change the pem test comparision
7109 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7110 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7111 and crypto/des/ede_cbcm_enc.c.
7114 *) DES quad checksum was broken on big-endian architectures. Fixed.
7117 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7118 Win32 test batch file so it (might) work again. The Win32 test batch file
7119 is horrible: I feel ill....
7122 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7123 in e_os.h. Audit of header files to check ANSI and non ANSI
7124 sections: 10 functions were absent from non ANSI section and not exported
7125 from Windows DLLs. Fixed up libeay.num for new functions.
7128 *) Make `openssl version' output lines consistent.
7129 [Ralf S. Engelschall]
7131 *) Fix Win32 symbol export lists for BIO functions: Added
7132 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7133 to ms/libeay{16,32}.def.
7134 [Ralf S. Engelschall]
7136 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7137 fine under Unix and passes some trivial tests I've now added. But the
7138 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7139 added to make sure no one expects that this stuff really works in the
7140 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7141 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7143 [Ralf S. Engelschall]
7145 *) Fix the generation of two part addresses in perl.
7146 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7148 *) Add config entry for Linux on MIPS.
7149 [John Tobey <jtobey@channel1.com>]
7151 *) Make links whenever Configure is run, unless we are on Windoze.
7154 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7155 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7159 *) Add a useful kludge to allow package maintainers to specify compiler and
7160 other platforms details on the command line without having to patch the
7161 Configure script everytime: One now can use ``perl Configure
7162 <id>:<details>'', i.e. platform ids are allowed to have details appended
7163 to them (seperated by colons). This is treated as there would be a static
7164 pre-configured entry in Configure's %table under key <id> with value
7165 <details> and ``perl Configure <id>'' is called. So, when you want to
7166 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7167 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7168 now, which overrides the FreeBSD-elf entry on-the-fly.
7169 [Ralf S. Engelschall]
7171 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7174 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7175 on the `perl Configure ...' command line. This way one can compile
7176 OpenSSL libraries with Position Independent Code (PIC) which is needed
7177 for linking it into DSOs.
7178 [Ralf S. Engelschall]
7180 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7184 *) Cleaned up the LICENSE document: The official contact for any license
7185 questions now is the OpenSSL core team under openssl-core@openssl.org.
7186 And add a paragraph about the dual-license situation to make sure people
7187 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7188 to the OpenSSL toolkit.
7189 [Ralf S. Engelschall]
7191 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7192 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7193 Additonally cleaned up the `make links' target: Remove unnecessary
7194 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7195 to speed processing and no longer clutter the display with confusing
7196 stuff. Instead only the actually done links are displayed.
7197 [Ralf S. Engelschall]
7199 *) Permit null encryption ciphersuites, used for authentication only. It used
7200 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7201 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7205 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7206 signed attributes when verifying signatures (this would break them),
7207 the detached data encoding was wrong and public keys obtained using
7208 X509_get_pubkey() weren't freed.
7211 *) Add text documentation for the BUFFER functions. Also added a work around
7212 to a Win95 console bug. This was triggered by the password read stuff: the
7213 last character typed gets carried over to the next fread(). If you were
7214 generating a new cert request using 'req' for example then the last
7215 character of the passphrase would be CR which would then enter the first
7219 *) Added the new `Includes OpenSSL Cryptography Software' button as
7220 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7221 button and can be used by applications based on OpenSSL to show the
7222 relationship to the OpenSSL project.
7223 [Ralf S. Engelschall]
7225 *) Remove confusing variables in function signatures in files
7226 ssl/ssl_lib.c and ssl/ssl.h.
7227 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7229 *) Don't install bss_file.c under PREFIX/include/
7230 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7232 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7233 functions that return function pointers and has support for NT specific
7234 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7235 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7236 unsigned to signed types: this was killing the Win32 compile.
7239 *) Add new certificate file to stack functions,
7240 SSL_add_dir_cert_subjects_to_stack() and
7241 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7242 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7243 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7244 This means that Apache-SSL and similar packages don't have to mess around
7245 to add as many CAs as they want to the preferred list.
7248 *) Experiment with doxygen documentation. Currently only partially applied to
7250 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7251 openssl.doxy as the configuration file.
7254 *) Get rid of remaining C++-style comments which strict C compilers hate.
7255 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7257 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7258 compiled in by default: it has problems with large keys.
7261 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7262 DH private keys and/or callback functions which directly correspond to
7263 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7264 is needed for applications which have to configure certificates on a
7265 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7267 For the RSA certificate situation is makes no difference, but
7268 for the DSA certificate situation this fixes the "no shared cipher"
7269 problem where the OpenSSL cipher selection procedure failed because the
7270 temporary keys were not overtaken from the context and the API provided
7271 no way to reconfigure them.
7272 The new functions now let applications reconfigure the stuff and they
7273 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7274 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7275 non-public-API function ssl_cert_instantiate() is used as a helper
7276 function and also to reduce code redundancy inside ssl_rsa.c.
7277 [Ralf S. Engelschall]
7279 *) Move s_server -dcert and -dkey options out of the undocumented feature
7280 area because they are useful for the DSA situation and should be
7281 recognized by the users.
7282 [Ralf S. Engelschall]
7284 *) Fix the cipher decision scheme for export ciphers: the export bits are
7285 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7286 SSL_EXP_MASK. So, the original variable has to be used instead of the
7287 already masked variable.
7288 [Richard Levitte <levitte@stacken.kth.se>]
7290 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7291 [Richard Levitte <levitte@stacken.kth.se>]
7293 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7294 from `int' to `unsigned int' because it's a length and initialized by
7295 EVP_DigestFinal() which expects an `unsigned int *'.
7296 [Richard Levitte <levitte@stacken.kth.se>]
7298 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7299 script. Instead use the usual Shell->Perl transition trick.
7300 [Ralf S. Engelschall]
7302 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7303 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7304 -noout -modulus' as it's already the case for `openssl rsa -noout
7305 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7306 currently the public key is printed (a decision which was already done by
7307 `openssl dsa -modulus' in the past) which serves a similar purpose.
7308 Additionally the NO_RSA no longer completely removes the whole -modulus
7309 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7311 [Ralf S. Engelschall]
7313 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7314 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7315 [Arne Ansper <arne@ats.cyber.ee>]
7317 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7318 to be added. Now both 'req' and 'ca' can use new objects defined in the
7322 *) Add cool BIO that does syslog (or event log on NT).
7323 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7325 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7326 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7327 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7328 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7331 *) Add preliminary config info for new extension code.
7334 *) Make RSA_NO_PADDING really use no padding.
7335 [Ulf Moeller <ulf@fitug.de>]
7337 *) Generate errors when private/public key check is done.
7340 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7341 for some CRL extensions and new objects added.
7344 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7345 key usage extension and fuller support for authority key id.
7348 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7349 padding method for RSA, which is recommended for new applications in PKCS
7350 #1 v2.0 (RFC 2437, October 1998).
7351 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7352 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7353 against Bleichbacher's attack on RSA.
7354 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7357 *) Updates to the new SSL compression code
7358 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7360 *) Fix so that the version number in the master secret, when passed
7361 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7362 (because the server will not accept higher), that the version number
7363 is 0x03,0x01, not 0x03,0x00
7364 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7366 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7367 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7368 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7371 *) Support for RAW extensions where an arbitrary extension can be
7372 created by including its DER encoding. See apps/openssl.cnf for
7376 *) Make sure latest Perl versions don't interpret some generated C array
7377 code as Perl array code in the crypto/err/err_genc.pl script.
7378 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7380 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7381 not many people have the assembler. Various Win32 compilation fixes and
7382 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7386 *) Modify configure script 'Configure' to automatically create crypto/date.h
7387 file under Win32 and also build pem.h from pem.org. New script
7388 util/mkfiles.pl to create the MINFO file on environments that can't do a
7389 'make files': perl util/mkfiles.pl >MINFO should work.
7392 *) Major rework of DES function declarations, in the pursuit of correctness
7393 and purity. As a result, many evil casts evaporated, and some weirdness,
7394 too. You may find this causes warnings in your code. Zapping your evil
7395 casts will probably fix them. Mostly.
7398 *) Fix for a typo in asn1.h. Bug fix to object creation script
7399 obj_dat.pl. It considered a zero in an object definition to mean
7400 "end of object": none of the objects in objects.h have any zeros
7401 so it wasn't spotted.
7402 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7404 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7405 Masking (CBCM). In the absence of test vectors, the best I have been able
7406 to do is check that the decrypt undoes the encrypt, so far. Send me test
7407 vectors if you have them.
7410 *) Correct calculation of key length for export ciphers (too much space was
7411 allocated for null ciphers). This has not been tested!
7414 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7415 message is now correct (it understands "crypto" and "ssl" on its
7416 command line). There is also now an "update" option. This will update
7417 the util/ssleay.num and util/libeay.num files with any new functions.
7419 perl util/mkdef.pl crypto ssl update
7420 it will update them.
7423 *) Overhauled the Perl interface (perl/*):
7424 - ported BN stuff to OpenSSL's different BN library
7425 - made the perl/ source tree CVS-aware
7426 - renamed the package from SSLeay to OpenSSL (the files still contain
7427 their history because I've copied them in the repository)
7428 - removed obsolete files (the test scripts will be replaced
7429 by better Test::Harness variants in the future)
7430 [Ralf S. Engelschall]
7432 *) First cut for a very conservative source tree cleanup:
7433 1. merge various obsolete readme texts into doc/ssleay.txt
7434 where we collect the old documents and readme texts.
7435 2. remove the first part of files where I'm already sure that we no
7436 longer need them because of three reasons: either they are just temporary
7437 files which were left by Eric or they are preserved original files where
7438 I've verified that the diff is also available in the CVS via "cvs diff
7439 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7440 the crypto/md/ stuff).
7441 [Ralf S. Engelschall]
7443 *) More extension code. Incomplete support for subject and issuer alt
7444 name, issuer and authority key id. Change the i2v function parameters
7445 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7446 what that's for :-) Fix to ASN1 macro which messed up
7447 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7450 *) Preliminary support for ENUMERATED type. This is largely copied from the
7454 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7455 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7457 *) Make sure `make rehash' target really finds the `openssl' program.
7458 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7460 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7461 like to hear about it if this slows down other processors.
7464 *) Add CygWin32 platform information to Configure script.
7465 [Alan Batie <batie@aahz.jf.intel.com>]
7467 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7468 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7470 *) New program nseq to manipulate netscape certificate sequences
7473 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7477 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7478 but the BN code had some problems that would cause failures when
7479 doing certificate verification and some other functions.
7480 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7482 *) Add ASN1 and PEM code to support netscape certificate sequences.
7485 *) Add ASN1 and PEM code to support netscape certificate sequences.
7488 *) Add several PKIX and private extended key usage OIDs.
7491 *) Modify the 'ca' program to handle the new extension code. Modify
7492 openssl.cnf for new extension format, add comments.
7495 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7496 and add a sample to openssl.cnf so req -x509 now adds appropriate
7500 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7501 error code, add initial support to X509_print() and x509 application.
7504 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7505 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7506 stuff is currently isolated and isn't even compiled yet.
7509 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7510 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7511 Removed the versions check from X509 routines when loading extensions:
7512 this allows certain broken certificates that don't set the version
7513 properly to be processed.
7516 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7517 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7518 can still be regenerated with "make depend".
7521 *) Spelling mistake in C version of CAST-128.
7522 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7524 *) Changes to the error generation code. The perl script err-code.pl
7525 now reads in the old error codes and retains the old numbers, only
7526 adding new ones if necessary. It also only changes the .err files if new
7527 codes are added. The makefiles have been modified to only insert errors
7528 when needed (to avoid needlessly modifying header files). This is done
7529 by only inserting errors if the .err file is newer than the auto generated
7530 C file. To rebuild all the error codes from scratch (the old behaviour)
7531 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7532 or delete all the .err files.
7535 *) CAST-128 was incorrectly implemented for short keys. The C version has
7536 been fixed, but is untested. The assembler versions are also fixed, but
7537 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7538 to regenerate it if needed.
7539 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7540 Hagino <itojun@kame.net>]
7542 *) File was opened incorrectly in randfile.c.
7543 [Ulf Möller <ulf@fitug.de>]
7545 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7546 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7547 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7548 al: it's just almost always a UTCTime. Note this patch adds new error
7549 codes so do a "make errors" if there are problems.
7552 *) Correct Linux 1 recognition in config.
7553 [Ulf Möller <ulf@fitug.de>]
7555 *) Remove pointless MD5 hash when using DSA keys in ca.
7556 [Anonymous <nobody@replay.com>]
7558 *) Generate an error if given an empty string as a cert directory. Also
7559 generate an error if handed NULL (previously returned 0 to indicate an
7560 error, but didn't set one).
7561 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7563 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7566 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7567 parameters. This was causing a warning which killed off the Win32 compile.
7570 *) Remove C++ style comments from crypto/bn/bn_local.h.
7571 [Neil Costigan <neil.costigan@celocom.com>]
7573 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7574 based on a text string, looking up short and long names and finally
7575 "dot" format. The "dot" format stuff didn't work. Added new function
7576 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7577 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7578 OID is not part of the table.
7581 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7582 X509_LOOKUP_by_alias().
7585 *) Sort openssl functions by name.
7588 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7589 encryption from sample DSA keys (in case anyone is interested the password
7593 *) Make _all_ *_free functions accept a NULL pointer.
7594 [Frans Heymans <fheymans@isaserver.be>]
7596 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7598 [Anonymous <nobody@replay.com>]
7600 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7601 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7603 *) Don't blow it for numeric -newkey arguments to apps/req.
7604 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7606 *) Temp key "for export" tests were wrong in s3_srvr.c.
7607 [Anonymous <nobody@replay.com>]
7609 *) Add prototype for temp key callback functions
7610 SSL_CTX_set_tmp_{rsa,dh}_callback().
7613 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7614 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7617 *) X509_name_add_entry() freed the wrong thing after an error.
7618 [Arne Ansper <arne@ats.cyber.ee>]
7620 *) rsa_eay.c would attempt to free a NULL context.
7621 [Arne Ansper <arne@ats.cyber.ee>]
7623 *) BIO_s_socket() had a broken should_retry() on Windoze.
7624 [Arne Ansper <arne@ats.cyber.ee>]
7626 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7627 [Arne Ansper <arne@ats.cyber.ee>]
7629 *) Make sure the already existing X509_STORE->depth variable is initialized
7630 in X509_STORE_new(), but document the fact that this variable is still
7631 unused in the certificate verification process.
7632 [Ralf S. Engelschall]
7634 *) Fix the various library and apps files to free up pkeys obtained from
7635 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7638 *) Fix reference counting in X509_PUBKEY_get(). This makes
7639 demos/maurice/example2.c work, amongst others, probably.
7640 [Steve Henson and Ben Laurie]
7642 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7643 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7644 are no longer created. This way we have a single and consistent command
7645 line interface `openssl <command>', similar to `cvs <command>'.
7646 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7648 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7649 BIT STRING wrapper always have zero unused bits.
7652 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7655 *) Make the top-level INSTALL documentation easier to understand.
7658 *) Makefiles updated to exit if an error occurs in a sub-directory
7659 make (including if user presses ^C) [Paul Sutton]
7661 *) Make Montgomery context stuff explicit in RSA data structure.
7664 *) Fix build order of pem and err to allow for generated pem.h.
7667 *) Fix renumbering bug in X509_NAME_delete_entry().
7670 *) Enhanced the err-ins.pl script so it makes the error library number
7671 global and can add a library name. This is needed for external ASN1 and
7672 other error libraries.
7675 *) Fixed sk_insert which never worked properly.
7678 *) Fix ASN1 macros so they can handle indefinite length construted
7679 EXPLICIT tags. Some non standard certificates use these: they can now
7683 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7684 into a single doc/ssleay.txt bundle. This way the information is still
7685 preserved but no longer messes up this directory. Now it's new room for
7686 the new set of documenation files.
7687 [Ralf S. Engelschall]
7689 *) SETs were incorrectly DER encoded. This was a major pain, because they
7690 shared code with SEQUENCEs, which aren't coded the same. This means that
7691 almost everything to do with SETs or SEQUENCEs has either changed name or
7692 number of arguments.
7693 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7695 *) Fix test data to work with the above.
7698 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7699 was already fixed by Eric for 0.9.1 it seems.
7700 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7702 *) Autodetect FreeBSD3.
7705 *) Fix various bugs in Configure. This affects the following platforms:
7709 unixware-2.0-pentium
7713 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7714 before they are needed.
7717 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7721 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7723 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7724 changed SSLeay to OpenSSL in version strings.
7725 [Ralf S. Engelschall]
7727 *) Some fixups to the top-level documents.
7730 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7731 because the symlink to include/ was missing.
7732 [Ralf S. Engelschall]
7734 *) Incorporated the popular no-RSA/DSA-only patches
7735 which allow to compile a RSA-free SSLeay.
7736 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7738 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7739 when "ssleay" is still not found.
7740 [Ralf S. Engelschall]
7742 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7743 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7745 *) Updated the README file.
7746 [Ralf S. Engelschall]
7748 *) Added various .cvsignore files in the CVS repository subdirs
7749 to make a "cvs update" really silent.
7750 [Ralf S. Engelschall]
7752 *) Recompiled the error-definition header files and added
7753 missing symbols to the Win32 linker tables.
7754 [Ralf S. Engelschall]
7756 *) Cleaned up the top-level documents;
7757 o new files: CHANGES and LICENSE
7758 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7759 o merged COPYRIGHT into LICENSE
7760 o removed obsolete TODO file
7761 o renamed MICROSOFT to INSTALL.W32
7762 [Ralf S. Engelschall]
7764 *) Removed dummy files from the 0.9.1b source tree:
7765 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7766 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7767 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7768 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7769 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7770 [Ralf S. Engelschall]
7772 *) Added various platform portability fixes.
7775 *) The Genesis of the OpenSSL rpject:
7776 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7777 Young and Tim J. Hudson created while they were working for C2Net until
7779 [The OpenSSL Project]
7782 Changes between 0.9.0b and 0.9.1b [not released]
7784 *) Updated a few CA certificates under certs/
7787 *) Changed some BIGNUM api stuff.
7790 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7791 DGUX x86, Linux Alpha, etc.
7794 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7795 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7799 *) Add -strparse option to asn1pars program which parses nested
7801 [Dr Stephen Henson <shenson@bigfoot.com>]
7803 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7806 *) DSA fix for "ca" program.
7809 *) Added "-genkey" option to "dsaparam" program.
7812 *) Added RIPE MD160 (rmd160) message digest.
7815 *) Added -a (all) option to "ssleay version" command.
7818 *) Added PLATFORM define which is the id given to Configure.
7821 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7824 *) Extended the ASN.1 parser routines.
7827 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7830 *) Added a BN_CTX to the BN library.
7833 *) Fixed the weak key values in DES library
7836 *) Changed API in EVP library for cipher aliases.
7839 *) Added support for RC2/64bit cipher.
7842 *) Converted the lhash library to the crypto/mem.c functions.
7845 *) Added more recognized ASN.1 object ids.
7848 *) Added more RSA padding checks for SSL/TLS.
7851 *) Added BIO proxy/filter functionality.
7854 *) Added extra_certs to SSL_CTX which can be used
7855 send extra CA certificates to the client in the CA cert chain sending
7856 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7859 *) Now Fortezza is denied in the authentication phase because
7860 this is key exchange mechanism is not supported by SSLeay at all.
7863 *) Additional PKCS1 checks.
7866 *) Support the string "TLSv1" for all TLS v1 ciphers.
7869 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7870 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7873 *) Fixed a few memory leaks.
7876 *) Fixed various code and comment typos.
7879 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7880 bytes sent in the client random.
7881 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob