5 Changes between 0.9.8b and 0.9.9 [xx XXX xxxx]
7 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
8 EVP_{Sign,Verify}* which allow an application to customise the signature
12 *) New -resign option to smime utility. This adds one or more signers
13 to an existing PKCS#7 signedData structure. Also -md option to use an
14 alternative message digest algorithm for signing.
17 *) Tidy up PKCS#7 routines and add new functions to make it easier to
18 create PKCS7 structures containing multiple signers. Update smime
19 application to support multiple signers.
22 *) New -macalg option to pkcs12 utility to allow setting of an alternative
26 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
27 Reorganize PBE internals to lookup from a static table using NIDs,
28 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
29 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
30 PRF which will be automatically used with PBES2.
33 *) Replace the algorithm specific calls to generate keys in "req" with the
37 *) Update PKCS#7 enveloped data routines to use new API. This is now
38 supported by any public key method supporting the encrypt operation. A
39 ctrl is added to allow the public key algorithm to examine or modify
40 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
44 *) Add a ctrl to asn1 method to allow a public key algorithm to express
45 a default digest type to use. In most cases this will be SHA1 but some
46 algorithms (such as GOST) need to specify an alternative digest. The
47 return value indicates how strong the prefernce is 1 means optional and
48 2 is mandatory (that is it is the only supported type). Modify
49 ASN1_item_sign() to accept a NULL digest argument to indicate it should
50 use the default md. Update openssl utilities to use the default digest
51 type for signing if it is not explicitly indicated.
54 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
55 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
56 signing method from the key type. This effectively removes the link
57 between digests and public key types.
60 *) Add an OID cross reference table and utility functions. Its purpose is to
61 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
62 rsaEncryption. This will allow some of the algorithm specific hackery
63 needed to use the correct OID to be removed.
66 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
67 structures for PKCS7_sign(). They are now set up by the relevant public
71 *) Add provisional EC pkey method with support for ECDSA and ECDH.
74 *) Add support for key derivation (agreement) in the API, DH method and
78 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
79 public and private key formats. As a side effect these add additional
80 command line functionality not previously available: DSA signatures can be
81 generated and verified using pkeyutl and DH key support and generation in
86 [Oliver Tappe <zooey@hirschkaefer.de>]
88 *) New make target "install_html_docs" installs HTML renditions of the
90 [Oliver Tappe <zooey@hirschkaefer.de>]
92 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
93 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
94 support key and parameter generation and add initial key generation
95 functionality for RSA.
98 *) Add functions for main EVP_PKEY_method operations. The undocumented
99 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
100 EVP_PKEY_{encrypt,decrypt}_old.
103 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
104 key API, doesn't do much yet.
107 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
108 public key algorithms. New option to openssl utility:
109 "list-public-key-algorithms" to print out info.
112 *) Implement the Supported Elliptic Curves Extension for
113 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
116 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
117 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
120 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
121 utilities such as rsa, dsa, dsaparam etc except they process any key
125 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
126 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
127 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
131 *) Initial support for pluggable public key ASN1.
132 De-spaghettify the public key ASN1 handling. Move public and private
133 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
134 algorithm specific handling to a single module within the relevant
135 algorithm directory. Add functions to allow (near) opaque processing
136 of public and private key structures.
139 *) Implement the Supported Point Formats Extension for
140 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
143 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
144 for the psk identity [hint] and the psk callback functions to the
145 SSL_SESSION, SSL and SSL_CTX structure.
148 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
152 SSL_CTX_use_psk_identity_hint
153 SSL_get_psk_identity_hint
155 SSL_use_psk_identity_hint
157 [Mika Kousa and Pasi Eronen of Nokia Corporation]
159 *) Add RFC 3161 compliant time stamp request creation, response generation
160 and response verification functionality.
161 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
163 *) Add initial support for TLS extensions, specifically for the server_name
164 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
165 have new members for a host name. The SSL data structure has an
166 additional member SSL_CTX *initial_ctx so that new sessions can be
167 stored in that context to allow for session resumption, even after the
168 SSL has been switched to a new SSL_CTX in reaction to a client's
169 server_name extension.
171 New functions (subject to change):
174 SSL_get_servername_type()
177 New CTRL codes and macros (subject to change):
179 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
180 - SSL_CTX_set_tlsext_servername_callback()
181 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
182 - SSL_CTX_set_tlsext_servername_arg()
183 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
185 openssl s_client has a new '-servername ...' option.
187 openssl s_server has new options '-servername_host ...', '-cert2 ...',
188 '-key2 ...', '-servername_fatal' (subject to change). This allows
189 testing the HostName extension for a specific single host name ('-cert'
190 and '-key' remain fallbacks for handshakes without HostName
191 negotiation). If the unrecogninzed_name alert has to be sent, this by
192 default is a warning; it becomes fatal with the '-servername_fatal'
195 [Peter Sylvester, Remy Allais, Christophe Renou]
197 *) Whirlpool hash implementation is added.
200 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
201 bn(64,32). Because of instruction set limitations it doesn't have
202 any negative impact on performance. This was done mostly in order
203 to make it possible to share assembler modules, such as bn_mul_mont
204 implementations, between 32- and 64-bit builds without hassle.
207 *) Disable rogue ciphersuites:
209 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
210 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
211 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
213 The latter two were purportedly from
214 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
217 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
218 remain enabled for now, but are just as unofficial, and the ID
219 has long expired; these will probably disappear soon.
222 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
223 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
227 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
228 dedicated Montgomery multiplication procedure, is introduced.
229 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
230 "64-bit" performance on certain 32-bit targets.
233 *) New option SSL_OP_NO_COMP to disable use of compression selectively
234 in SSL structures. New SSL ctrl to set maximum send fragment size.
235 Save memory by seeting the I/O buffer sizes dynamically instead of
236 using the maximum available value.
239 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
240 in addition to the text details.
243 *) Very, very preliminary EXPERIMENTAL support for printing of general
244 ASN1 structures. This currently produces rather ugly output and doesn't
245 handle several customised structures at all.
248 *) Integrated support for PVK file format and some related formats such
249 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
250 these in the 'rsa' and 'dsa' utilities.
253 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
256 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
257 place for the (very old) "NETSCAPE" format certificates which are now
258 handled using new ASN1 code equivalents.
261 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
262 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
263 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
266 *) Modify CRL distribution points extension code to print out previously
267 unsupported fields. Enhance extension setting code to allow setting of
271 *) Add print and set support for Issuing Distribution Point CRL extension.
274 Changes between 0.9.8b and 0.9.8c [xx XXX xxxx]
276 *) Disable the padding bug check when compression is in use. The padding
277 bug check assumes the first packet is of even length, this is not
278 necessarily true if compresssion is enabled and can result in false
279 positives causing handshake failure. The actual bug test is ancient
280 code so it is hoped that implementations will either have fixed it by
281 now or any which still have the bug do not support compression.
284 Changes between 0.9.8a and 0.9.8b [04 May 2006]
286 *) When applying a cipher rule check to see if string match is an explicit
287 cipher suite and only match that one cipher suite if it is.
290 *) Link in manifests for VC++ if needed.
291 [Austin Ziegler <halostatue@gmail.com>]
293 *) Update support for ECC-based TLS ciphersuites according to
294 draft-ietf-tls-ecc-12.txt with proposed changes (but without
295 TLS extensions, which are supported starting with the 0.9.9
296 branch, not in the OpenSSL 0.9.8 branch).
299 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
300 opaque EVP_CIPHER_CTX handling.
303 *) Fixes and enhancements to zlib compression code. We now only use
304 "zlib1.dll" and use the default __cdecl calling convention on Win32
305 to conform with the standards mentioned here:
306 http://www.zlib.net/DLL_FAQ.txt
307 Static zlib linking now works on Windows and the new --with-zlib-include
308 --with-zlib-lib options to Configure can be used to supply the location
309 of the headers and library. Gracefully handle case where zlib library
313 *) Several fixes and enhancements to the OID generation code. The old code
314 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
315 handle numbers larger than ULONG_MAX, truncated printing and had a
316 non standard OBJ_obj2txt() behaviour.
319 *) Add support for building of engines under engine/ as shared libraries
320 under VC++ build system.
323 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
324 Hopefully, we will not see any false combination of paths any more.
327 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
329 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
330 (part of SSL_OP_ALL). This option used to disable the
331 countermeasure against man-in-the-middle protocol-version
332 rollback in the SSL 2.0 server implementation, which is a bad
333 idea. (CVE-2005-2969)
335 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
336 for Information Security, National Institute of Advanced Industrial
337 Science and Technology [AIST], Japan)]
339 *) Add two function to clear and return the verify parameter flags.
342 *) Keep cipherlists sorted in the source instead of sorting them at
343 runtime, thus removing the need for a lock.
346 *) Avoid some small subgroup attacks in Diffie-Hellman.
347 [Nick Mathewson and Ben Laurie]
349 *) Add functions for well-known primes.
352 *) Extended Windows CE support.
353 [Satoshi Nakamura and Andy Polyakov]
355 *) Initialize SSL_METHOD structures at compile time instead of during
356 runtime, thus removing the need for a lock.
359 *) Make PKCS7_decrypt() work even if no certificate is supplied by
360 attempting to decrypt each encrypted key in turn. Add support to
364 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
366 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
369 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
370 key into the same file any more.
373 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
376 *) Add -utf8 command line and config file option to 'ca'.
377 [Stefan <stf@udoma.org]
379 *) Removed the macro des_crypt(), as it seems to conflict with some
380 libraries. Use DES_crypt().
383 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
384 involves renaming the source and generated shared-libs for
385 both. The engines will accept the corrected or legacy ids
386 ('ncipher' and '4758_cca' respectively) when binding. NB,
387 this only applies when building 'shared'.
388 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
390 *) Add attribute functions to EVP_PKEY structure. Modify
391 PKCS12_create() to recognize a CSP name attribute and
392 use it. Make -CSP option work again in pkcs12 utility.
395 *) Add new functionality to the bn blinding code:
396 - automatic re-creation of the BN_BLINDING parameters after
397 a fixed number of uses (currently 32)
398 - add new function for parameter creation
399 - introduce flags to control the update behaviour of the
400 BN_BLINDING parameters
401 - hide BN_BLINDING structure
402 Add a second BN_BLINDING slot to the RSA structure to improve
403 performance when a single RSA object is shared among several
407 *) Add support for DTLS.
408 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
410 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
411 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
414 *) Remove buggy and incompletet DH cert support from
415 ssl/ssl_rsa.c and ssl/s3_both.c
418 *) Use SHA-1 instead of MD5 as the default digest algorithm for
419 the apps/openssl applications.
422 *) Compile clean with "-Wall -Wmissing-prototypes
423 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
424 DEBUG_SAFESTACK must also be set.
427 *) Change ./Configure so that certain algorithms can be disabled by default.
428 The new counterpiece to "no-xxx" is "enable-xxx".
430 The patented RC5 and MDC2 algorithms will now be disabled unless
431 "enable-rc5" and "enable-mdc2", respectively, are specified.
433 (IDEA remains enabled despite being patented. This is because IDEA
434 is frequently required for interoperability, and there is no license
435 fee for non-commercial use. As before, "no-idea" can be used to
436 avoid this algorithm.)
440 *) Add processing of proxy certificates (see RFC 3820). This work was
441 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
442 EGEE (Enabling Grids for E-science in Europe).
445 *) RC4 performance overhaul on modern architectures/implementations, such
446 as Intel P4, IA-64 and AMD64.
449 *) New utility extract-section.pl. This can be used specify an alternative
450 section number in a pod file instead of having to treat each file as
451 a separate case in Makefile. This can be done by adding two lines to the
454 =for comment openssl_section:XXX
456 The blank line is mandatory.
460 *) New arguments -certform, -keyform and -pass for s_client and s_server
461 to allow alternative format key and certificate files and passphrase
465 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
466 update associated structures and add various utility functions.
468 Add new policy related verify parameters, include policy checking in
469 standard verify code. Enhance 'smime' application with extra parameters
470 to support policy checking and print out.
473 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
474 Nehemiah processors. These extensions support AES encryption in hardware
475 as well as RNG (though RNG support is currently disabled).
476 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
478 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
481 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
482 [Andy Polyakov and a number of other people]
484 *) Improved PowerPC platform support. Most notably BIGNUM assembler
485 implementation contributed by IBM.
486 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
488 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
489 exponent rather than 'unsigned long'. There is a corresponding change to
490 the new 'rsa_keygen' element of the RSA_METHOD structure.
491 [Jelte Jansen, Geoff Thorpe]
493 *) Functionality for creating the initial serial number file is now
494 moved from CA.pl to the 'ca' utility with a new option -create_serial.
496 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
497 number file to 1, which is bound to cause problems. To avoid
498 the problems while respecting compatibility between different 0.9.7
499 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
500 CA.pl for serial number initialization. With the new release 0.9.8,
501 we can fix the problem directly in the 'ca' utility.)
504 *) Reduced header interdepencies by declaring more opaque objects in
505 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
506 give fewer recursive includes, which could break lazy source code - so
507 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
508 developers should define this symbol when building and using openssl to
509 ensure they track the recommended behaviour, interfaces, [etc], but
510 backwards-compatible behaviour prevails when this isn't defined.
513 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
516 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
517 This will generate a random key of the appropriate length based on the
518 cipher context. The EVP_CIPHER can provide its own random key generation
519 routine to support keys of a specific form. This is used in the des and
520 3des routines to generate a key of the correct parity. Update S/MIME
521 code to use new functions and hence generate correct parity DES keys.
522 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
523 valid (weak or incorrect parity).
526 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
527 as looking them up. This is useful when the verified structure may contain
528 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
529 present unless the new PKCS7_NO_CRL flag is asserted.
532 *) Extend ASN1 oid configuration module. It now additionally accepts the
535 shortName = some long name, 1.2.3.4
538 *) Reimplemented the BN_CTX implementation. There is now no more static
539 limitation on the number of variables it can handle nor the depth of the
540 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
541 information can now expand as required, and rather than having a single
542 static array of bignums, BN_CTX now uses a linked-list of such arrays
543 allowing it to expand on demand whilst maintaining the usefulness of
547 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
548 to allow all RSA operations to function using a single BN_CTX.
551 *) Preliminary support for certificate policy evaluation and checking. This
552 is initially intended to pass the tests outlined in "Conformance Testing
553 of Relying Party Client Certificate Path Processing Logic" v1.07.
556 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
557 remained unused and not that useful. A variety of other little bignum
558 tweaks and fixes have also been made continuing on from the audit (see
562 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
563 associated ASN1, EVP and SSL functions and old ASN1 macros.
566 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
567 and this should never fail. So the return value from the use of
568 BN_set_word() (which can fail due to needless expansion) is now deprecated;
569 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
572 *) BN_CTX_get() should return zero-valued bignums, providing the same
573 initialised value as BN_new().
574 [Geoff Thorpe, suggested by Ulf Möller]
576 *) Support for inhibitAnyPolicy certificate extension.
579 *) An audit of the BIGNUM code is underway, for which debugging code is
580 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
581 is considered valid when processing BIGNUMs, and causes execution to
582 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
583 further steps are taken to deliberately pollute unused data in BIGNUM
584 structures to try and expose faulty code further on. For now, openssl will
585 (in its default mode of operation) continue to tolerate the inconsistent
586 forms that it has tolerated in the past, but authors and packagers should
587 consider trying openssl and their own applications when compiled with
588 these debugging symbols defined. It will help highlight potential bugs in
589 their own code, and will improve the test coverage for OpenSSL itself. At
590 some point, these tighter rules will become openssl's default to improve
591 maintainability, though the assert()s and other overheads will remain only
592 in debugging configurations. See bn.h for more details.
593 [Geoff Thorpe, Nils Larsch, Ulf Möller]
595 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
596 that can only be obtained through BN_CTX_new() (which implicitly
597 initialises it). The presence of this function only made it possible
598 to overwrite an existing structure (and cause memory leaks).
601 *) Because of the callback-based approach for implementing LHASH as a
602 template type, lh_insert() adds opaque objects to hash-tables and
603 lh_doall() or lh_doall_arg() are typically used with a destructor callback
604 to clean up those corresponding objects before destroying the hash table
605 (and losing the object pointers). So some over-zealous constifications in
606 LHASH have been relaxed so that lh_insert() does not take (nor store) the
607 objects as "const" and the lh_doall[_arg] callback wrappers are not
608 prototyped to have "const" restrictions on the object pointers they are
609 given (and so aren't required to cast them away any more).
612 *) The tmdiff.h API was so ugly and minimal that our own timing utility
613 (speed) prefers to use its own implementation. The two implementations
614 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
615 its object type properly exposed (MS_TM) instead of casting to/from "char
616 *". This may still change yet if someone realises MS_TM and "ms_time_***"
617 aren't necessarily the greatest nomenclatures - but this is what was used
618 internally to the implementation so I've used that for now.
621 *) Ensure that deprecated functions do not get compiled when
622 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
623 the self-tests were still using deprecated key-generation functions so
624 these have been updated also.
627 *) Reorganise PKCS#7 code to separate the digest location functionality
628 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
629 New function PKCS7_set_digest() to set the digest type for PKCS#7
630 digestedData type. Add additional code to correctly generate the
631 digestedData type and add support for this type in PKCS7 initialization
635 *) New function PKCS7_set0_type_other() this initializes a PKCS7
636 structure of type "other".
639 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
640 sure the loop does correctly stop and breaking ("division by zero")
641 modulus operations are not performed. The (pre-generated) prime
642 table crypto/bn/bn_prime.h was already correct, but it could not be
643 re-generated on some platforms because of the "division by zero"
644 situation in the script.
645 [Ralf S. Engelschall]
647 *) Update support for ECC-based TLS ciphersuites according to
648 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
649 SHA-1 now is only used for "small" curves (where the
650 representation of a field element takes up to 24 bytes); for
651 larger curves, the field element resulting from ECDH is directly
652 used as premaster secret.
653 [Douglas Stebila (Sun Microsystems Laboratories)]
655 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
656 curve secp160r1 to the tests.
657 [Douglas Stebila (Sun Microsystems Laboratories)]
659 *) Add the possibility to load symbols globally with DSO.
660 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
662 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
663 control of the error stack.
666 *) Add support for STORE in ENGINE.
669 *) Add the STORE type. The intention is to provide a common interface
670 to certificate and key stores, be they simple file-based stores, or
671 HSM-type store, or LDAP stores, or...
672 NOTE: The code is currently UNTESTED and isn't really used anywhere.
675 *) Add a generic structure called OPENSSL_ITEM. This can be used to
676 pass a list of arguments to any function as well as provide a way
677 for a function to pass data back to the caller.
680 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
681 works like BUF_strdup() but can be used to duplicate a portion of
682 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
686 *) Add the function sk_find_ex() which works like sk_find(), but will
687 return an index to an element even if an exact match couldn't be
688 found. The index is guaranteed to point at the element where the
689 searched-for key would be inserted to preserve sorting order.
692 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
693 takes an extra flags argument for optional functionality. Currently,
694 the following flags are defined:
696 OBJ_BSEARCH_VALUE_ON_NOMATCH
697 This one gets OBJ_bsearch_ex() to return a pointer to the first
698 element where the comparing function returns a negative or zero
701 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
702 This one gets OBJ_bsearch_ex() to return a pointer to the first
703 element where the comparing function returns zero. This is useful
704 if there are more than one element where the comparing function
708 *) Make it possible to create self-signed certificates with 'openssl ca'
709 in such a way that the self-signed certificate becomes part of the
710 CA database and uses the same mechanisms for serial number generation
711 as all other certificate signing. The new flag '-selfsign' enables
712 this functionality. Adapt CA.sh and CA.pl.in.
715 *) Add functionality to check the public key of a certificate request
716 against a given private. This is useful to check that a certificate
717 request can be signed by that key (self-signing).
720 *) Make it possible to have multiple active certificates with the same
721 subject in the CA index file. This is done only if the keyword
722 'unique_subject' is set to 'no' in the main CA section (default
723 if 'CA_default') of the configuration file. The value is saved
724 with the database itself in a separate index attribute file,
725 named like the index file with '.attr' appended to the name.
728 *) Generate muti valued AVAs using '+' notation in config files for
732 *) Support for nameConstraints certificate extension.
735 *) Support for policyConstraints certificate extension.
738 *) Support for policyMappings certificate extension.
741 *) Make sure the default DSA_METHOD implementation only uses its
742 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
743 and change its own handlers to be NULL so as to remove unnecessary
744 indirection. This lets alternative implementations fallback to the
745 default implementation more easily.
748 *) Support for directoryName in GeneralName related extensions
752 *) Make it possible to link applications using Makefile.shared.
753 Make that possible even when linking against static libraries!
756 *) Support for single pass processing for S/MIME signing. This now
757 means that S/MIME signing can be done from a pipe, in addition
758 cleartext signing (multipart/signed type) is effectively streaming
759 and the signed data does not need to be all held in memory.
761 This is done with a new flag PKCS7_STREAM. When this flag is set
762 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
763 is done after the data is output (and digests calculated) in
767 *) Add full support for -rpath/-R, both in shared libraries and
768 applications, at least on the platforms where it's known how
772 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
773 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
774 will now compute a table of multiples of the generator that
775 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
776 faster (notably in the case of a single point multiplication,
778 [Nils Larsch, Bodo Moeller]
780 *) IPv6 support for certificate extensions. The various extensions
781 which use the IP:a.b.c.d can now take IPv6 addresses using the
782 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
786 *) Added an ENGINE that implements RSA by performing private key
787 exponentiations with the GMP library. The conversions to and from
788 GMP's mpz_t format aren't optimised nor are any montgomery forms
789 cached, and on x86 it appears OpenSSL's own performance has caught up.
790 However there are likely to be other architectures where GMP could
791 provide a boost. This ENGINE is not built in by default, but it can be
792 specified at Configure time and should be accompanied by the necessary
793 linker additions, eg;
794 ./config -DOPENSSL_USE_GMP -lgmp
797 *) "openssl engine" will not display ENGINE/DSO load failure errors when
798 testing availability of engines with "-t" - the old behaviour is
799 produced by increasing the feature's verbosity with "-tt".
802 *) ECDSA routines: under certain error conditions uninitialized BN objects
803 could be freed. Solution: make sure initialization is performed early
804 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
808 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
809 and DH_METHOD (eg. by ENGINE implementations) to override the normal
810 software implementations. For DSA and DH, parameter generation can
811 also be overriden by providing the appropriate method callbacks.
814 *) Change the "progress" mechanism used in key-generation and
815 primality testing to functions that take a new BN_GENCB pointer in
816 place of callback/argument pairs. The new API functions have "_ex"
817 postfixes and the older functions are reimplemented as wrappers for
818 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
819 declarations of the old functions to help (graceful) attempts to
820 migrate to the new functions. Also, the new key-generation API
821 functions operate on a caller-supplied key-structure and return
822 success/failure rather than returning a key or NULL - this is to
823 help make "keygen" another member function of RSA_METHOD etc.
825 Example for using the new callback interface:
827 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
831 BN_GENCB_set(&my_cb, my_callback, my_arg);
833 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
834 /* For the meaning of a, b in calls to my_callback(), see the
835 * documentation of the function that calls the callback.
836 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
837 * my_callback should return 1 if it wants BN_is_prime_ex()
838 * to continue, or 0 to stop.
843 *) Change the ZLIB compression method to be stateful, and make it
844 available to TLS with the number defined in
845 draft-ietf-tls-compression-04.txt.
848 *) Add the ASN.1 structures and functions for CertificatePair, which
849 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
851 CertificatePair ::= SEQUENCE {
852 forward [0] Certificate OPTIONAL,
853 reverse [1] Certificate OPTIONAL,
854 -- at least one of the pair shall be present -- }
856 Also implement the PEM functions to read and write certificate
857 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
859 This needed to be defined, mostly for the sake of the LDAP
860 attribute crossCertificatePair, but may prove useful elsewhere as
864 *) Make it possible to inhibit symlinking of shared libraries in
865 Makefile.shared, for Cygwin's sake.
868 *) Extend the BIGNUM API by creating a function
869 void BN_set_negative(BIGNUM *a, int neg);
870 and a macro that behave like
871 int BN_is_negative(const BIGNUM *a);
873 to avoid the need to access 'a->neg' directly in applications.
876 *) Implement fast modular reduction for pseudo-Mersenne primes
877 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
878 EC_GROUP_new_curve_GFp() will now automatically use this
880 [Nils Larsch <nla@trustcenter.de>]
882 *) Add new lock type (CRYPTO_LOCK_BN).
885 *) Change the ENGINE framework to automatically load engines
886 dynamically from specific directories unless they could be
887 found to already be built in or loaded. Move all the
888 current engines except for the cryptodev one to a new
890 The engines in engines/ are built as shared libraries if
891 the "shared" options was given to ./Configure or ./config.
892 Otherwise, they are inserted in libcrypto.a.
893 /usr/local/ssl/engines is the default directory for dynamic
894 engines, but that can be overriden at configure time through
895 the usual use of --prefix and/or --openssldir, and at run
896 time with the environment variable OPENSSL_ENGINES.
897 [Geoff Thorpe and Richard Levitte]
899 *) Add Makefile.shared, a helper makefile to build shared
900 libraries. Addapt Makefile.org.
903 *) Add version info to Win32 DLLs.
904 [Peter 'Luna' Runestig" <peter@runestig.com>]
906 *) Add new 'medium level' PKCS#12 API. Certificates and keys
907 can be added using this API to created arbitrary PKCS#12
908 files while avoiding the low level API.
910 New options to PKCS12_create(), key or cert can be NULL and
911 will then be omitted from the output file. The encryption
912 algorithm NIDs can be set to -1 for no encryption, the mac
913 iteration count can be set to 0 to omit the mac.
915 Enhance pkcs12 utility by making the -nokeys and -nocerts
916 options work when creating a PKCS#12 file. New option -nomac
917 to omit the mac, NONE can be set for an encryption algorithm.
918 New code is modified to use the enhanced PKCS12_create()
919 instead of the low level API.
922 *) Extend ASN1 encoder to support indefinite length constructed
923 encoding. This can output sequences tags and octet strings in
924 this form. Modify pk7_asn1.c to support indefinite length
925 encoding. This is experimental and needs additional code to
926 be useful, such as an ASN1 bio and some enhanced streaming
929 Extend template encode functionality so that tagging is passed
930 down to the template encoder.
933 *) Let 'openssl req' fail if an argument to '-newkey' is not
934 recognized instead of using RSA as a default.
937 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
938 As these are not official, they are not included in "ALL";
939 the "ECCdraft" ciphersuite group alias can be used to select them.
940 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
942 *) Add ECDH engine support.
943 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
945 *) Add ECDH in new directory crypto/ecdh/.
946 [Douglas Stebila (Sun Microsystems Laboratories)]
948 *) Let BN_rand_range() abort with an error after 100 iterations
949 without success (which indicates a broken PRNG).
952 *) Change BN_mod_sqrt() so that it verifies that the input value
953 is really the square of the return value. (Previously,
954 BN_mod_sqrt would show GIGO behaviour.)
957 *) Add named elliptic curves over binary fields from X9.62, SECG,
958 and WAP/WTLS; add OIDs that were still missing.
960 [Sheueling Chang Shantz and Douglas Stebila
961 (Sun Microsystems Laboratories)]
963 *) Extend the EC library for elliptic curves over binary fields
964 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
967 EC_GF2m_simple_method
971 EC_GROUP_new_curve_GF2m
972 EC_GROUP_set_curve_GF2m
973 EC_GROUP_get_curve_GF2m
974 EC_POINT_set_affine_coordinates_GF2m
975 EC_POINT_get_affine_coordinates_GF2m
976 EC_POINT_set_compressed_coordinates_GF2m
978 Point compression for binary fields is disabled by default for
979 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
982 As binary polynomials are represented as BIGNUMs, various members
983 of the EC_GROUP and EC_POINT data structures can be shared
984 between the implementations for prime fields and binary fields;
985 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
986 are essentially identical to their ..._GFp counterparts.
987 (For simplicity, the '..._GFp' prefix has been dropped from
988 various internal method names.)
990 An internal 'field_div' method (similar to 'field_mul' and
991 'field_sqr') has been added; this is used only for binary fields.
993 [Sheueling Chang Shantz and Douglas Stebila
994 (Sun Microsystems Laboratories)]
996 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
997 through methods ('mul', 'precompute_mult').
999 The generic implementations (now internally called 'ec_wNAF_mul'
1000 and 'ec_wNAF_precomputed_mult') remain the default if these
1001 methods are undefined.
1003 [Sheueling Chang Shantz and Douglas Stebila
1004 (Sun Microsystems Laboratories)]
1006 *) New function EC_GROUP_get_degree, which is defined through
1007 EC_METHOD. For curves over prime fields, this returns the bit
1008 length of the modulus.
1010 [Sheueling Chang Shantz and Douglas Stebila
1011 (Sun Microsystems Laboratories)]
1013 *) New functions EC_GROUP_dup, EC_POINT_dup.
1014 (These simply call ..._new and ..._copy).
1016 [Sheueling Chang Shantz and Douglas Stebila
1017 (Sun Microsystems Laboratories)]
1019 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1020 Polynomials are represented as BIGNUMs (where the sign bit is not
1021 used) in the following functions [macros]:
1024 BN_GF2m_sub [= BN_GF2m_add]
1025 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1026 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1027 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1029 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1030 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1031 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1032 BN_GF2m_cmp [= BN_ucmp]
1034 (Note that only the 'mod' functions are actually for fields GF(2^m).
1035 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1037 For some functions, an the irreducible polynomial defining a
1038 field can be given as an 'unsigned int[]' with strictly
1039 decreasing elements giving the indices of those bits that are set;
1040 i.e., p[] represents the polynomial
1041 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1043 p[0] > p[1] > ... > p[k] = 0.
1044 This applies to the following functions:
1049 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1050 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1052 BN_GF2m_mod_sqrt_arr
1053 BN_GF2m_mod_solve_quad_arr
1057 Conversion can be performed by the following functions:
1062 bntest.c has additional tests for binary polynomial arithmetic.
1064 Two implementations for BN_GF2m_mod_div() are available.
1065 The default algorithm simply uses BN_GF2m_mod_inv() and
1066 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1067 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1068 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1070 [Sheueling Chang Shantz and Douglas Stebila
1071 (Sun Microsystems Laboratories)]
1073 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1074 functionality is disabled at compile-time.
1075 [Douglas Stebila <douglas.stebila@sun.com>]
1077 *) Change default behaviour of 'openssl asn1parse' so that more
1078 information is visible when viewing, e.g., a certificate:
1080 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1081 mode the content of non-printable OCTET STRINGs is output in a
1082 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1083 avoid the appearance of a printable string.
1084 [Nils Larsch <nla@trustcenter.de>]
1086 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1088 EC_GROUP_set_asn1_flag()
1089 EC_GROUP_get_asn1_flag()
1090 EC_GROUP_set_point_conversion_form()
1091 EC_GROUP_get_point_conversion_form()
1092 These control ASN1 encoding details:
1093 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1094 has been set to OPENSSL_EC_NAMED_CURVE.
1095 - Points are encoded in uncompressed form by default; options for
1096 asn1_for are as for point2oct, namely
1097 POINT_CONVERSION_COMPRESSED
1098 POINT_CONVERSION_UNCOMPRESSED
1099 POINT_CONVERSION_HYBRID
1101 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1104 EC_GROUP_get0_seed()
1105 EC_GROUP_get_seed_len()
1106 This is used only for ASN1 purposes (so far).
1107 [Nils Larsch <nla@trustcenter.de>]
1109 *) Add 'field_type' member to EC_METHOD, which holds the NID
1110 of the appropriate field type OID. The new function
1111 EC_METHOD_get_field_type() returns this value.
1112 [Nils Larsch <nla@trustcenter.de>]
1117 EC_POINT_point2hex()
1118 EC_POINT_hex2point()
1119 providing useful interfaces to EC_POINT_point2oct() and
1120 EC_POINT_oct2point().
1121 [Nils Larsch <nla@trustcenter.de>]
1123 *) Change internals of the EC library so that the functions
1124 EC_GROUP_set_generator()
1125 EC_GROUP_get_generator()
1126 EC_GROUP_get_order()
1127 EC_GROUP_get_cofactor()
1128 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1129 to methods, which would lead to unnecessary code duplication when
1130 adding different types of curves.
1131 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1133 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1134 arithmetic, and such that modified wNAFs are generated
1135 (which avoid length expansion in many cases).
1138 *) Add a function EC_GROUP_check_discriminant() (defined via
1139 EC_METHOD) that verifies that the curve discriminant is non-zero.
1141 Add a function EC_GROUP_check() that makes some sanity tests
1142 on a EC_GROUP, its generator and order. This includes
1143 EC_GROUP_check_discriminant().
1144 [Nils Larsch <nla@trustcenter.de>]
1146 *) Add ECDSA in new directory crypto/ecdsa/.
1148 Add applications 'openssl ecparam' and 'openssl ecdsa'
1149 (these are based on 'openssl dsaparam' and 'openssl dsa').
1151 ECDSA support is also included in various other files across the
1152 library. Most notably,
1153 - 'openssl req' now has a '-newkey ecdsa:file' option;
1154 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1155 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1156 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1157 them suitable for ECDSA where domain parameters must be
1158 extracted before the specific public key;
1159 - ECDSA engine support has been added.
1160 [Nils Larsch <nla@trustcenter.de>]
1162 *) Include some named elliptic curves, and add OIDs from X9.62,
1163 SECG, and WAP/WTLS. Each curve can be obtained from the new
1165 EC_GROUP_new_by_curve_name(),
1166 and the list of available named curves can be obtained with
1167 EC_get_builtin_curves().
1168 Also add a 'curve_name' member to EC_GROUP objects, which can be
1170 EC_GROUP_set_curve_name()
1171 EC_GROUP_get_curve_name()
1172 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1174 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1175 was actually never needed) and in BN_mul(). The removal in BN_mul()
1176 required a small change in bn_mul_part_recursive() and the addition
1177 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1178 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1179 bn_sub_words() and bn_add_words() except they take arrays with
1183 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1185 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1186 The value now differs depending on if you build for FIPS or not.
1187 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1188 safely run with a non-FIPSed libcrypto, as it may crash because of
1189 the difference induced by this change.
1192 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1194 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1195 (part of SSL_OP_ALL). This option used to disable the
1196 countermeasure against man-in-the-middle protocol-version
1197 rollback in the SSL 2.0 server implementation, which is a bad
1198 idea. (CVE-2005-2969)
1200 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1201 for Information Security, National Institute of Advanced Industrial
1202 Science and Technology [AIST], Japan)]
1204 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1205 mainly for FIPS compliance and not fully integrated at this stage.
1208 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1209 the exponentiation using a fixed-length exponent. (Otherwise,
1210 the information leaked through timing could expose the secret key
1211 after many signatures; cf. Bleichenbacher's attack on DSA with
1215 *) Make a new fixed-window mod_exp implementation the default for
1216 RSA, DSA, and DH private-key operations so that the sequence of
1217 squares and multiplies and the memory access pattern are
1218 independent of the particular secret key. This will mitigate
1219 cache-timing and potential related attacks.
1221 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1222 and this is automatically used by BN_mod_exp_mont() if the new flag
1223 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1224 will use this BN flag for private exponents unless the flag
1225 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1226 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1228 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1230 *) Change the client implementation for SSLv23_method() and
1231 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1232 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1233 (Previously, the SSL 2.0 backwards compatible Client Hello
1234 message format would be used even with SSL_OP_NO_SSLv2.)
1237 *) Add support for smime-type MIME parameter in S/MIME messages which some
1241 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1242 a threadsafe manner. Modify rsa code to use new function and add calls
1243 to dsa and dh code (which had race conditions before).
1246 *) Include the fixed error library code in the C error file definitions
1247 instead of fixing them up at runtime. This keeps the error code
1248 structures constant.
1251 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1253 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1256 *) Fixes for newer kerberos headers. NB: the casts are needed because
1257 the 'length' field is signed on one version and unsigned on another
1258 with no (?) obvious way to tell the difference, without these VC++
1259 complains. Also the "definition" of FAR (blank) is no longer included
1260 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1261 some needed definitions.
1264 *) Undo Cygwin change.
1267 *) Added support for proxy certificates according to RFC 3820.
1268 Because they may be a security thread to unaware applications,
1269 they must be explicitely allowed in run-time. See
1270 docs/HOWTO/proxy_certificates.txt for further information.
1273 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1275 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1276 server and client random values. Previously
1277 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1278 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1280 This change has negligible security impact because:
1282 1. Server and client random values still have 24 bytes of pseudo random
1285 2. Server and client random values are sent in the clear in the initial
1288 3. The master secret is derived using the premaster secret (48 bytes in
1289 size for static RSA ciphersuites) as well as client server and random
1292 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1295 [Stephen Henson, reported by UK NISCC]
1297 *) Use Windows randomness collection on Cygwin.
1300 *) Fix hang in EGD/PRNGD query when communication socket is closed
1301 prematurely by EGD/PRNGD.
1302 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1304 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1307 *) Back-port of selected performance improvements from development
1308 branch, as well as improved support for PowerPC platforms.
1311 *) Add lots of checks for memory allocation failure, error codes to indicate
1312 failure and freeing up memory if a failure occurs.
1313 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1315 *) Add new -passin argument to dgst.
1318 *) Perform some character comparisons of different types in X509_NAME_cmp:
1319 this is needed for some certificates that reencode DNs into UTF8Strings
1320 (in violation of RFC3280) and can't or wont issue name rollover
1324 *) Make an explicit check during certificate validation to see that
1325 the CA setting in each certificate on the chain is correct. As a
1326 side effect always do the following basic checks on extensions,
1327 not just when there's an associated purpose to the check:
1329 - if there is an unhandled critical extension (unless the user
1330 has chosen to ignore this fault)
1331 - if the path length has been exceeded (if one is set at all)
1332 - that certain extensions fit the associated purpose (if one has
1336 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1338 *) Avoid a race condition when CRLs are checked in a multi threaded
1339 environment. This would happen due to the reordering of the revoked
1340 entries during signature checking and serial number lookup. Now the
1341 encoding is cached and the serial number sort performed under a lock.
1342 Add new STACK function sk_is_sorted().
1345 *) Add Delta CRL to the extension code.
1348 *) Various fixes to s3_pkt.c so alerts are sent properly.
1349 [David Holmes <d.holmes@f5.com>]
1351 *) Reduce the chances of duplicate issuer name and serial numbers (in
1352 violation of RFC3280) using the OpenSSL certificate creation utilities.
1353 This is done by creating a random 64 bit value for the initial serial
1354 number when a serial number file is created or when a self signed
1355 certificate is created using 'openssl req -x509'. The initial serial
1356 number file is created using 'openssl x509 -next_serial' in CA.pl
1357 rather than being initialized to 1.
1360 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1362 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1363 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1364 [Joe Orton, Steve Henson]
1366 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1368 [Joe Orton, Steve Henson]
1370 *) Make it possible to have multiple active certificates with the same
1371 subject in the CA index file. This is done only if the keyword
1372 'unique_subject' is set to 'no' in the main CA section (default
1373 if 'CA_default') of the configuration file. The value is saved
1374 with the database itself in a separate index attribute file,
1375 named like the index file with '.attr' appended to the name.
1378 *) X509 verify fixes. Disable broken certificate workarounds when
1379 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1380 keyUsage extension present. Don't accept CRLs with unhandled critical
1381 extensions: since verify currently doesn't process CRL extensions this
1382 rejects a CRL with *any* critical extensions. Add new verify error codes
1386 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1387 A clarification of RFC2560 will require the use of OCTET STRINGs and
1388 some implementations cannot handle the current raw format. Since OpenSSL
1389 copies and compares OCSP nonces as opaque blobs without any attempt at
1390 parsing them this should not create any compatibility issues.
1393 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1394 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1395 this HMAC (and other) operations are several times slower than OpenSSL
1399 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1400 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1402 *) Use the correct content when signing type "other".
1405 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1407 *) Fix various bugs revealed by running the NISCC test suite:
1409 Stop out of bounds reads in the ASN1 code when presented with
1410 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1412 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1414 If verify callback ignores invalid public key errors don't try to check
1415 certificate signature with the NULL public key.
1419 *) New -ignore_err option in ocsp application to stop the server
1420 exiting on the first error in a request.
1423 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1424 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1428 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1429 extra data after the compression methods not only for TLS 1.0
1430 but also for SSL 3.0 (as required by the specification).
1431 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1433 *) Change X509_certificate_type() to mark the key as exported/exportable
1434 when it's 512 *bits* long, not 512 bytes.
1437 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1438 blocks during encryption.
1441 *) Various fixes to base64 BIO and non blocking I/O. On write
1442 flushes were not handled properly if the BIO retried. On read
1443 data was not being buffered properly and had various logic bugs.
1444 This also affects blocking I/O when the data being decoded is a
1448 *) Various S/MIME bugfixes and compatibility changes:
1449 output correct application/pkcs7 MIME type if
1450 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1451 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1452 of files as .eml work). Correctly handle very long lines in MIME
1456 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1458 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1459 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1460 a protocol version number mismatch like a decryption error
1461 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1464 *) Turn on RSA blinding by default in the default implementation
1465 to avoid a timing attack. Applications that don't want it can call
1466 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1467 They would be ill-advised to do so in most cases.
1468 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1470 *) Change RSA blinding code so that it works when the PRNG is not
1471 seeded (in this case, the secret RSA exponent is abused as
1472 an unpredictable seed -- if it is not unpredictable, there
1473 is no point in blinding anyway). Make RSA blinding thread-safe
1474 by remembering the creator's thread ID in rsa->blinding and
1475 having all other threads use local one-time blinding factors
1476 (this requires more computation than sharing rsa->blinding, but
1477 avoids excessive locking; and if an RSA object is not shared
1478 between threads, blinding will still be very fast).
1481 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1482 ENGINE as defaults for all supported algorithms irrespective of
1483 the 'flags' parameter. 'flags' is now honoured, so applications
1484 should make sure they are passing it correctly.
1487 *) Target "mingw" now allows native Windows code to be generated in
1488 the Cygwin environment as well as with the MinGW compiler.
1491 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1493 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1494 via timing by performing a MAC computation even if incorrrect
1495 block cipher padding has been found. This is a countermeasure
1496 against active attacks where the attacker has to distinguish
1497 between bad padding and a MAC verification error. (CVE-2003-0078)
1499 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1500 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1501 Martin Vuagnoux (EPFL, Ilion)]
1503 *) Make the no-err option work as intended. The intention with no-err
1504 is not to have the whole error stack handling routines removed from
1505 libcrypto, it's only intended to remove all the function name and
1506 reason texts, thereby removing some of the footprint that may not
1507 be interesting if those errors aren't displayed anyway.
1509 NOTE: it's still possible for any application or module to have it's
1510 own set of error texts inserted. The routines are there, just not
1511 used by default when no-err is given.
1514 *) Add support for FreeBSD on IA64.
1515 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1517 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1518 Kerberos function mit_des_cbc_cksum(). Before this change,
1519 the value returned by DES_cbc_cksum() was like the one from
1520 mit_des_cbc_cksum(), except the bytes were swapped.
1521 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1523 *) Allow an application to disable the automatic SSL chain building.
1524 Before this a rather primitive chain build was always performed in
1525 ssl3_output_cert_chain(): an application had no way to send the
1526 correct chain if the automatic operation produced an incorrect result.
1528 Now the chain builder is disabled if either:
1530 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1532 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1534 The reasoning behind this is that an application would not want the
1535 auto chain building to take place if extra chain certificates are
1536 present and it might also want a means of sending no additional
1537 certificates (for example the chain has two certificates and the
1541 *) Add the possibility to build without the ENGINE framework.
1542 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1544 *) Under Win32 gmtime() can return NULL: check return value in
1545 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1548 *) DSA routines: under certain error conditions uninitialized BN objects
1549 could be freed. Solution: make sure initialization is performed early
1550 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1551 Nils Larsch <nla@trustcenter.de> via PR#459)
1554 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1555 checked on reconnect on the client side, therefore session resumption
1556 could still fail with a "ssl session id is different" error. This
1557 behaviour is masked when SSL_OP_ALL is used due to
1558 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1559 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1560 followup to PR #377.
1563 *) IA-32 assembler support enhancements: unified ELF targets, support
1564 for SCO/Caldera platforms, fix for Cygwin shared build.
1567 *) Add support for FreeBSD on sparc64. As a consequence, support for
1568 FreeBSD on non-x86 processors is separate from x86 processors on
1569 the config script, much like the NetBSD support.
1570 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1572 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1574 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1577 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1578 code (06) was taken as the first octet of the session ID and the last
1579 octet was ignored consequently. As a result SSLv2 client side session
1580 caching could not have worked due to the session ID mismatch between
1582 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1586 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1587 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1591 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1592 seems that in spite of existing for more than a year, many application
1593 author have done nothing to provide the necessary callbacks, which
1594 means that this particular engine will not work properly anywhere.
1595 This is a very unfortunate situation which forces us, in the name
1596 of usability, to give the hw_ncipher.c a static lock, which is part
1598 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1599 appear in 0.9.8 or later. We EXPECT application authors to have
1600 dealt properly with this when 0.9.8 is released (unless we actually
1601 make such changes in the libcrypto locking code that changes will
1602 have to be made anyway).
1605 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1606 octets have been read, EOF or an error occurs. Without this change
1607 some truncated ASN1 structures will not produce an error.
1610 *) Disable Heimdal support, since it hasn't been fully implemented.
1611 Still give the possibility to force the use of Heimdal, but with
1612 warnings and a request that patches get sent to openssl-dev.
1615 *) Add the VC-CE target, introduce the WINCE sysname, and add
1616 INSTALL.WCE and appropriate conditionals to make it build.
1617 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1619 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1620 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1621 edit numbers of the version.
1622 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1624 *) Introduce safe string copy and catenation functions
1625 (BUF_strlcpy() and BUF_strlcat()).
1626 [Ben Laurie (CHATS) and Richard Levitte]
1628 *) Avoid using fixed-size buffers for one-line DNs.
1629 [Ben Laurie (CHATS)]
1631 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1632 resizing buffers containing secrets, and use where appropriate.
1633 [Ben Laurie (CHATS)]
1635 *) Avoid using fixed size buffers for configuration file location.
1636 [Ben Laurie (CHATS)]
1638 *) Avoid filename truncation for various CA files.
1639 [Ben Laurie (CHATS)]
1641 *) Use sizeof in preference to magic numbers.
1642 [Ben Laurie (CHATS)]
1644 *) Avoid filename truncation in cert requests.
1645 [Ben Laurie (CHATS)]
1647 *) Add assertions to check for (supposedly impossible) buffer
1649 [Ben Laurie (CHATS)]
1651 *) Don't cache truncated DNS entries in the local cache (this could
1652 potentially lead to a spoofing attack).
1653 [Ben Laurie (CHATS)]
1655 *) Fix various buffers to be large enough for hex/decimal
1656 representations in a platform independent manner.
1657 [Ben Laurie (CHATS)]
1659 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1660 resizing buffers containing secrets, and use where appropriate.
1661 [Ben Laurie (CHATS)]
1663 *) Add BIO_indent() to avoid much slightly worrying code to do
1665 [Ben Laurie (CHATS)]
1667 *) Convert sprintf()/BIO_puts() to BIO_printf().
1668 [Ben Laurie (CHATS)]
1670 *) buffer_gets() could terminate with the buffer only half
1672 [Ben Laurie (CHATS)]
1674 *) Add assertions to prevent user-supplied crypto functions from
1675 overflowing internal buffers by having large block sizes, etc.
1676 [Ben Laurie (CHATS)]
1678 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1680 [Ben Laurie (CHATS)]
1682 *) Eliminate unused copy of key in RC4.
1683 [Ben Laurie (CHATS)]
1685 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1686 [Ben Laurie (CHATS)]
1688 *) Fix off-by-one error in EGD path.
1689 [Ben Laurie (CHATS)]
1691 *) If RANDFILE path is too long, ignore instead of truncating.
1692 [Ben Laurie (CHATS)]
1694 *) Eliminate unused and incorrectly sized X.509 structure
1696 [Ben Laurie (CHATS)]
1698 *) Eliminate unused and dangerous function knumber().
1699 [Ben Laurie (CHATS)]
1701 *) Eliminate unused and dangerous structure, KSSL_ERR.
1702 [Ben Laurie (CHATS)]
1704 *) Protect against overlong session ID context length in an encoded
1705 session object. Since these are local, this does not appear to be
1707 [Ben Laurie (CHATS)]
1709 *) Change from security patch (see 0.9.6e below) that did not affect
1710 the 0.9.6 release series:
1712 Remote buffer overflow in SSL3 protocol - an attacker could
1713 supply an oversized master key in Kerberos-enabled versions.
1715 [Ben Laurie (CHATS)]
1717 *) Change the SSL kerb5 codes to match RFC 2712.
1720 *) Make -nameopt work fully for req and add -reqopt switch.
1721 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1723 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1724 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1726 *) Make sure tests can be performed even if the corresponding algorithms
1727 have been removed entirely. This was also the last step to make
1728 OpenSSL compilable with DJGPP under all reasonable conditions.
1729 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1731 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1732 to allow version independent disabling of normally unselected ciphers,
1733 which may be activated as a side-effect of selecting a single cipher.
1735 (E.g., cipher list string "RSA" enables ciphersuites that are left
1736 out of "ALL" because they do not provide symmetric encryption.
1737 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1738 [Lutz Jaenicke, Bodo Moeller]
1740 *) Add appropriate support for separate platform-dependent build
1741 directories. The recommended way to make a platform-dependent
1742 build directory is the following (tested on Linux), maybe with
1745 # Place yourself outside of the OpenSSL source tree. In
1746 # this example, the environment variable OPENSSL_SOURCE
1747 # is assumed to contain the absolute OpenSSL source directory.
1748 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1749 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1750 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1751 mkdir -p `dirname $F`
1752 ln -s $OPENSSL_SOURCE/$F $F
1755 To be absolutely sure not to disturb the source tree, a "make clean"
1756 is a good thing. If it isn't successfull, don't worry about it,
1757 it probably means the source directory is very clean.
1760 *) Make sure any ENGINE control commands make local copies of string
1761 pointers passed to them whenever necessary. Otherwise it is possible
1762 the caller may have overwritten (or deallocated) the original string
1763 data when a later ENGINE operation tries to use the stored values.
1764 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1766 *) Improve diagnostics in file reading and command-line digests.
1767 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1769 *) Add AES modes CFB and OFB to the object database. Correct an
1770 error in AES-CFB decryption.
1773 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1774 allows existing EVP_CIPHER_CTX structures to be reused after
1775 calling EVP_*Final(). This behaviour is used by encryption
1776 BIOs and some applications. This has the side effect that
1777 applications must explicitly clean up cipher contexts with
1778 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1781 *) Check the values of dna and dnb in bn_mul_recursive before calling
1782 bn_mul_comba (a non zero value means the a or b arrays do not contain
1783 n2 elements) and fallback to bn_mul_normal if either is not zero.
1786 *) Fix escaping of non-ASCII characters when using the -subj option
1787 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1790 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1791 form for "surname", serialNumber has no short form.
1792 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1793 therefore remove "mail" short name for "internet 7".
1794 The OID for unique identifiers in X509 certificates is
1795 x500UniqueIdentifier, not uniqueIdentifier.
1796 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1799 *) Add an "init" command to the ENGINE config module and auto initialize
1800 ENGINEs. Without any "init" command the ENGINE will be initialized
1801 after all ctrl commands have been executed on it. If init=1 the
1802 ENGINE is initailized at that point (ctrls before that point are run
1803 on the uninitialized ENGINE and after on the initialized one). If
1804 init=0 then the ENGINE will not be iniatialized at all.
1807 *) Fix the 'app_verify_callback' interface so that the user-defined
1808 argument is actually passed to the callback: In the
1809 SSL_CTX_set_cert_verify_callback() prototype, the callback
1810 declaration has been changed from
1813 int (*cb)(X509_STORE_CTX *,void *);
1814 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1815 i=s->ctx->app_verify_callback(&ctx)
1816 has been changed into
1817 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1819 To update applications using SSL_CTX_set_cert_verify_callback(),
1820 a dummy argument can be added to their callback functions.
1821 [D. K. Smetters <smetters@parc.xerox.com>]
1823 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1824 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1826 *) Add and OPENSSL_LOAD_CONF define which will cause
1827 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1828 This allows older applications to transparently support certain
1829 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1830 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1831 load the config file and OPENSSL_add_all_algorithms_conf() which will
1832 always load it have also been added.
1835 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1836 Adjust NIDs and EVP layer.
1837 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1839 *) Config modules support in openssl utility.
1841 Most commands now load modules from the config file,
1842 though in a few (such as version) this isn't done
1843 because it couldn't be used for anything.
1845 In the case of ca and req the config file used is
1846 the same as the utility itself: that is the -config
1847 command line option can be used to specify an
1851 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1852 use "openssl_conf" if filename is NULL use default openssl config file.
1855 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1856 config section name. Add a new flag to tolerate a missing config file
1857 and move code to CONF_modules_load_file().
1860 *) Support for crypto accelerator cards from Accelerated Encryption
1861 Processing, www.aep.ie. (Use engine 'aep')
1862 The support was copied from 0.9.6c [engine] and adapted/corrected
1863 to work with the new engine framework.
1864 [AEP Inc. and Richard Levitte]
1866 *) Support for SureWare crypto accelerator cards from Baltimore
1867 Technologies. (Use engine 'sureware')
1868 The support was copied from 0.9.6c [engine] and adapted
1869 to work with the new engine framework.
1872 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1873 make the newer ENGINE framework commands for the CHIL engine work.
1874 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1876 *) Make it possible to produce shared libraries on ReliantUNIX.
1877 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1879 *) Add the configuration target debug-linux-ppro.
1880 Make 'openssl rsa' use the general key loading routines
1881 implemented in apps.c, and make those routines able to
1882 handle the key format FORMAT_NETSCAPE and the variant
1884 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1886 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1887 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1889 *) Add -keyform to rsautl, and document -engine.
1890 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1892 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1893 BIO_R_NO_SUCH_FILE error code rather than the generic
1894 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1897 *) Add new functions
1899 ERR_peek_last_error_line
1900 ERR_peek_last_error_line_data.
1901 These are similar to
1904 ERR_peek_error_line_data,
1905 but report on the latest error recorded rather than the first one
1906 still in the error queue.
1907 [Ben Laurie, Bodo Moeller]
1909 *) default_algorithms option in ENGINE config module. This allows things
1911 default_algorithms = ALL
1912 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1915 *) Prelminary ENGINE config module.
1918 *) New experimental application configuration code.
1921 *) Change the AES code to follow the same name structure as all other
1922 symmetric ciphers, and behave the same way. Move everything to
1923 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1924 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1926 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1927 [Ben Laurie and Theo de Raadt]
1929 *) Add option to output public keys in req command.
1930 [Massimiliano Pala madwolf@openca.org]
1932 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1933 (up to about 10% better than before for P-192 and P-224).
1936 *) New functions/macros
1938 SSL_CTX_set_msg_callback(ctx, cb)
1939 SSL_CTX_set_msg_callback_arg(ctx, arg)
1940 SSL_set_msg_callback(ssl, cb)
1941 SSL_set_msg_callback_arg(ssl, arg)
1943 to request calling a callback function
1945 void cb(int write_p, int version, int content_type,
1946 const void *buf, size_t len, SSL *ssl, void *arg)
1948 whenever a protocol message has been completely received
1949 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1950 protocol version according to which the SSL library interprets
1951 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1952 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1953 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1954 specification (change_cipher_spec(20), alert(21), handshake(22)).
1955 'buf' and 'len' point to the actual message, 'ssl' to the
1956 SSL object, and 'arg' is the application-defined value set by
1957 SSL[_CTX]_set_msg_callback_arg().
1959 'openssl s_client' and 'openssl s_server' have new '-msg' options
1960 to enable a callback that displays all protocol messages.
1963 *) Change the shared library support so shared libraries are built as
1964 soon as the corresponding static library is finished, and thereby get
1965 openssl and the test programs linked against the shared library.
1966 This still only happens when the keyword "shard" has been given to
1967 the configuration scripts.
1969 NOTE: shared library support is still an experimental thing, and
1970 backward binary compatibility is still not guaranteed.
1971 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1973 *) Add support for Subject Information Access extension.
1974 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1976 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1977 additional bytes when new memory had to be allocated, not just
1978 when reusing an existing buffer.
1981 *) New command line and configuration option 'utf8' for the req command.
1982 This allows field values to be specified as UTF8 strings.
1985 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1986 runs for the former and machine-readable output for the latter.
1989 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1990 of the e-mail address in the DN (i.e., it will go into a certificate
1991 extension only). The new configuration file option 'email_in_dn = no'
1992 has the same effect.
1993 [Massimiliano Pala madwolf@openca.org]
1995 *) Change all functions with names starting with des_ to be starting
1996 with DES_ instead. Add wrappers that are compatible with libdes,
1997 but are named _ossl_old_des_*. Finally, add macros that map the
1998 des_* symbols to the corresponding _ossl_old_des_* if libdes
1999 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2000 desired, the des_* symbols will be mapped to DES_*, with one
2003 Since we provide two compatibility mappings, the user needs to
2004 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2005 compatibility is desired. The default (i.e., when that macro
2006 isn't defined) is OpenSSL 0.9.6c compatibility.
2008 There are also macros that enable and disable the support of old
2009 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2010 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2011 are defined, the default will apply: to support the old des routines.
2013 In either case, one must include openssl/des.h to get the correct
2014 definitions. Do not try to just include openssl/des_old.h, that
2017 NOTE: This is a major break of an old API into a new one. Software
2018 authors are encouraged to switch to the DES_ style functions. Some
2019 time in the future, des_old.h and the libdes compatibility functions
2020 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2021 default), and then completely removed.
2024 *) Test for certificates which contain unsupported critical extensions.
2025 If such a certificate is found during a verify operation it is
2026 rejected by default: this behaviour can be overridden by either
2027 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2028 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2029 X509_supported_extension() has also been added which returns 1 if a
2030 particular extension is supported.
2033 *) Modify the behaviour of EVP cipher functions in similar way to digests
2034 to retain compatibility with existing code.
2037 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2038 compatibility with existing code. In particular the 'ctx' parameter does
2039 not have to be to be initialized before the call to EVP_DigestInit() and
2040 it is tidied up after a call to EVP_DigestFinal(). New function
2041 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2042 EVP_MD_CTX_copy() changed to not require the destination to be
2043 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2044 requires the destination to be valid.
2046 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2047 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2050 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2051 so that complete 'Handshake' protocol structures are kept in memory
2052 instead of overwriting 'msg_type' and 'length' with 'body' data.
2055 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2056 [Massimo Santin via Richard Levitte]
2058 *) Major restructuring to the underlying ENGINE code. This includes
2059 reduction of linker bloat, separation of pure "ENGINE" manipulation
2060 (initialisation, etc) from functionality dealing with implementations
2061 of specific crypto iterfaces. This change also introduces integrated
2062 support for symmetric ciphers and digest implementations - so ENGINEs
2063 can now accelerate these by providing EVP_CIPHER and EVP_MD
2064 implementations of their own. This is detailed in crypto/engine/README
2065 as it couldn't be adequately described here. However, there are a few
2066 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2067 were changed in the original introduction of ENGINE code have now
2068 reverted back - the hooking from this code to ENGINE is now a good
2069 deal more passive and at run-time, operations deal directly with
2070 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2071 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2072 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2073 they were not being used by the framework as there is no concept of a
2074 BIGNUM_METHOD and they could not be generalised to the new
2075 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2076 ENGINE_cpy() has been removed as it cannot be consistently defined in
2080 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2083 *) Change mkdef.pl to sort symbols that get the same entry number,
2084 and make sure the automatically generated functions ERR_load_*
2085 become part of libeay.num as well.
2088 *) New function SSL_renegotiate_pending(). This returns true once
2089 renegotiation has been requested (either SSL_renegotiate() call
2090 or HelloRequest/ClientHello receveived from the peer) and becomes
2091 false once a handshake has been completed.
2092 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2093 sends a HelloRequest, but does not ensure that a handshake takes
2094 place. SSL_renegotiate_pending() is useful for checking if the
2095 client has followed the request.)
2098 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2099 By default, clients may request session resumption even during
2100 renegotiation (if session ID contexts permit); with this option,
2101 session resumption is possible only in the first handshake.
2103 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2104 more bits available for options that should not be part of
2105 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2108 *) Add some demos for certificate and certificate request creation.
2111 *) Make maximum certificate chain size accepted from the peer application
2112 settable (SSL*_get/set_max_cert_list()), as proposed by
2113 "Douglas E. Engert" <deengert@anl.gov>.
2116 *) Add support for shared libraries for Unixware-7
2117 (Boyd Lynn Gerber <gerberb@zenez.com>).
2120 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2121 be done prior to destruction. Use this to unload error strings from
2122 ENGINEs that load their own error strings. NB: This adds two new API
2123 functions to "get" and "set" this destroy handler in an ENGINE.
2126 *) Alter all existing ENGINE implementations (except "openssl" and
2127 "openbsd") to dynamically instantiate their own error strings. This
2128 makes them more flexible to be built both as statically-linked ENGINEs
2129 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2130 Also, add stub code to each that makes building them as self-contained
2131 shared-libraries easier (see README.ENGINE).
2134 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2135 implementations into applications that are completely implemented in
2136 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2137 commands that can be used to configure what shared-library to load and
2138 to control aspects of the way it is handled. Also, made an update to
2139 the README.ENGINE file that brings its information up-to-date and
2140 provides some information and instructions on the "dynamic" ENGINE
2141 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2144 *) Make it possible to unload ranges of ERR strings with a new
2145 "ERR_unload_strings" function.
2148 *) Add a copy() function to EVP_MD.
2151 *) Make EVP_MD routines take a context pointer instead of just the
2152 md_data void pointer.
2155 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2156 that the digest can only process a single chunk of data
2157 (typically because it is provided by a piece of
2158 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2159 is only going to provide a single chunk of data, and hence the
2160 framework needn't accumulate the data for oneshot drivers.
2163 *) As with "ERR", make it possible to replace the underlying "ex_data"
2164 functions. This change also alters the storage and management of global
2165 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2166 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2167 index counters. The API functions that use this state have been changed
2168 to take a "class_index" rather than pointers to the class's local STACK
2169 and counter, and there is now an API function to dynamically create new
2170 classes. This centralisation allows us to (a) plug a lot of the
2171 thread-safety problems that existed, and (b) makes it possible to clean
2172 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2173 such data would previously have always leaked in application code and
2174 workarounds were in place to make the memory debugging turn a blind eye
2175 to it. Application code that doesn't use this new function will still
2176 leak as before, but their memory debugging output will announce it now
2177 rather than letting it slide.
2179 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2180 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2181 has a return value to indicate success or failure.
2184 *) Make it possible to replace the underlying "ERR" functions such that the
2185 global state (2 LHASH tables and 2 locks) is only used by the "default"
2186 implementation. This change also adds two functions to "get" and "set"
2187 the implementation prior to it being automatically set the first time
2188 any other ERR function takes place. Ie. an application can call "get",
2189 pass the return value to a module it has just loaded, and that module
2190 can call its own "set" function using that value. This means the
2191 module's "ERR" operations will use (and modify) the error state in the
2192 application and not in its own statically linked copy of OpenSSL code.
2195 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2196 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2197 the operation, and provides a more encapsulated way for external code
2198 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2199 to use these functions rather than manually incrementing the counts.
2201 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2204 *) Add EVP test program.
2207 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2210 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2211 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2212 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2213 These allow a CRL to be built without having to access X509_CRL fields
2214 directly. Modify 'ca' application to use new functions.
2217 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2218 bug workarounds. Rollback attack detection is a security feature.
2219 The problem will only arise on OpenSSL servers when TLSv1 is not
2220 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2221 Software authors not wanting to support TLSv1 will have special reasons
2222 for their choice and can explicitly enable this option.
2223 [Bodo Moeller, Lutz Jaenicke]
2225 *) Rationalise EVP so it can be extended: don't include a union of
2226 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2227 (similar to those existing for EVP_CIPHER_CTX).
2232 EVP_MD_CTX_init(&md); /* new function call */
2233 EVP_DigestInit(&md, EVP_sha1());
2234 EVP_DigestUpdate(&md, in, len);
2235 EVP_DigestFinal(&md, out, NULL);
2236 EVP_MD_CTX_cleanup(&md); /* new function call */
2240 *) Make DES key schedule conform to the usual scheme, as well as
2241 correcting its structure. This means that calls to DES functions
2242 now have to pass a pointer to a des_key_schedule instead of a
2243 plain des_key_schedule (which was actually always a pointer
2246 des_key_schedule ks;
2248 des_set_key_checked(..., &ks);
2249 des_ncbc_encrypt(..., &ks, ...);
2251 (Note that a later change renames 'des_...' into 'DES_...'.)
2254 *) Initial reduction of linker bloat: the use of some functions, such as
2255 PEM causes large amounts of unused functions to be linked in due to
2256 poor organisation. For example pem_all.c contains every PEM function
2257 which has a knock on effect of linking in large amounts of (unused)
2258 ASN1 code. Grouping together similar functions and splitting unrelated
2259 functions prevents this.
2262 *) Cleanup of EVP macros.
2265 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2266 correct _ecb suffix.
2269 *) Add initial OCSP responder support to ocsp application. The
2270 revocation information is handled using the text based index
2271 use by the ca application. The responder can either handle
2272 requests generated internally, supplied in files (for example
2273 via a CGI script) or using an internal minimal server.
2276 *) Add configuration choices to get zlib compression for TLS.
2279 *) Changes to Kerberos SSL for RFC 2712 compliance:
2280 1. Implemented real KerberosWrapper, instead of just using
2281 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2282 2. Implemented optional authenticator field of KerberosWrapper.
2284 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2285 and authenticator structs; see crypto/krb5/.
2287 Generalized Kerberos calls to support multiple Kerberos libraries.
2288 [Vern Staats <staatsvr@asc.hpc.mil>,
2289 Jeffrey Altman <jaltman@columbia.edu>
2290 via Richard Levitte]
2292 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2293 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2294 values for each of the key sizes rather than having just
2295 parameters (and 'speed' generating keys each time).
2298 *) Speed up EVP routines.
2301 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2302 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2303 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2304 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2306 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2307 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2308 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2311 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2313 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2316 *) Added the OS2-EMX target.
2317 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2319 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2320 to support NCONF routines in extension code. New function CONF_set_nconf()
2321 to allow functions which take an NCONF to also handle the old LHASH
2322 structure: this means that the old CONF compatible routines can be
2323 retained (in particular wrt extensions) without having to duplicate the
2324 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2327 *) Enhance the general user interface with mechanisms for inner control
2328 and with possibilities to have yes/no kind of prompts.
2331 *) Change all calls to low level digest routines in the library and
2332 applications to use EVP. Add missing calls to HMAC_cleanup() and
2333 don't assume HMAC_CTX can be copied using memcpy().
2334 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2336 *) Add the possibility to control engines through control names but with
2337 arbitrary arguments instead of just a string.
2338 Change the key loaders to take a UI_METHOD instead of a callback
2339 function pointer. NOTE: this breaks binary compatibility with earlier
2340 versions of OpenSSL [engine].
2341 Adapt the nCipher code for these new conditions and add a card insertion
2345 *) Enhance the general user interface with mechanisms to better support
2346 dialog box interfaces, application-defined prompts, the possibility
2347 to use defaults (for example default passwords from somewhere else)
2348 and interrupts/cancellations.
2351 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2352 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2355 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2356 tidy up some unnecessarily weird code in 'sk_new()').
2357 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2359 *) Change the key loading routines for ENGINEs to use the same kind
2360 callback (pem_password_cb) as all other routines that need this
2364 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2365 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2366 than this minimum value is recommended.
2369 *) New random seeder for OpenVMS, using the system process statistics
2370 that are easily reachable.
2373 *) Windows apparently can't transparently handle global
2374 variables defined in DLLs. Initialisations such as:
2376 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2378 wont compile. This is used by the any applications that need to
2379 declare their own ASN1 modules. This was fixed by adding the option
2380 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2381 needed for static libraries under Win32.
2384 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2385 setting of purpose and trust fields. New X509_STORE trust and
2386 purpose functions and tidy up setting in other SSL functions.
2389 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2390 structure. These are inherited by X509_STORE_CTX when it is
2391 initialised. This allows various defaults to be set in the
2392 X509_STORE structure (such as flags for CRL checking and custom
2393 purpose or trust settings) for functions which only use X509_STORE_CTX
2394 internally such as S/MIME.
2396 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2397 trust settings if they are not set in X509_STORE. This allows X509_STORE
2398 purposes and trust (in S/MIME for example) to override any set by default.
2400 Add command line options for CRL checking to smime, s_client and s_server
2404 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2405 are set then the CRL is looked up in the X509_STORE structure and
2406 its validity and signature checked, then if the certificate is found
2407 in the CRL the verify fails with a revoked error.
2409 Various new CRL related callbacks added to X509_STORE_CTX structure.
2411 Command line options added to 'verify' application to support this.
2413 This needs some additional work, such as being able to handle multiple
2414 CRLs with different times, extension based lookup (rather than just
2415 by subject name) and ultimately more complete V2 CRL extension
2419 *) Add a general user interface API (crypto/ui/). This is designed
2420 to replace things like des_read_password and friends (backward
2421 compatibility functions using this new API are provided).
2422 The purpose is to remove prompting functions from the DES code
2423 section as well as provide for prompting through dialog boxes in
2424 a window system and the like.
2427 *) Add "ex_data" support to ENGINE so implementations can add state at a
2428 per-structure level rather than having to store it globally.
2431 *) Make it possible for ENGINE structures to be copied when retrieved by
2432 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2433 This causes the "original" ENGINE structure to act like a template,
2434 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2435 operational state can be localised to each ENGINE structure, despite the
2436 fact they all share the same "methods". New ENGINE structures returned in
2437 this case have no functional references and the return value is the single
2438 structural reference. This matches the single structural reference returned
2439 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2443 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2444 needs to match any other type at all we need to manually clear the
2448 *) Changes to the "openssl engine" utility to include;
2449 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2450 about an ENGINE's available control commands.
2451 - executing control commands from command line arguments using the
2452 '-pre' and '-post' switches. '-post' is only used if '-t' is
2453 specified and the ENGINE is successfully initialised. The syntax for
2454 the individual commands are colon-separated, for example;
2455 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2458 *) New dynamic control command support for ENGINEs. ENGINEs can now
2459 declare their own commands (numbers), names (strings), descriptions,
2460 and input types for run-time discovery by calling applications. A
2461 subset of these commands are implicitly classed as "executable"
2462 depending on their input type, and only these can be invoked through
2463 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2464 can be based on user input, config files, etc). The distinction is
2465 that "executable" commands cannot return anything other than a boolean
2466 result and can only support numeric or string input, whereas some
2467 discoverable commands may only be for direct use through
2468 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2469 pointers, or other custom uses. The "executable" commands are to
2470 support parameterisations of ENGINE behaviour that can be
2471 unambiguously defined by ENGINEs and used consistently across any
2472 OpenSSL-based application. Commands have been added to all the
2473 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2474 control over shared-library paths without source code alterations.
2477 *) Changed all ENGINE implementations to dynamically allocate their
2478 ENGINEs rather than declaring them statically. Apart from this being
2479 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2480 this also allows the implementations to compile without using the
2481 internal engine_int.h header.
2484 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2485 'const' value. Any code that should be able to modify a RAND_METHOD
2486 should already have non-const pointers to it (ie. they should only
2487 modify their own ones).
2490 *) Made a variety of little tweaks to the ENGINE code.
2491 - "atalla" and "ubsec" string definitions were moved from header files
2492 to C code. "nuron" string definitions were placed in variables
2493 rather than hard-coded - allowing parameterisation of these values
2494 later on via ctrl() commands.
2495 - Removed unused "#if 0"'d code.
2496 - Fixed engine list iteration code so it uses ENGINE_free() to release
2497 structural references.
2498 - Constified the RAND_METHOD element of ENGINE structures.
2499 - Constified various get/set functions as appropriate and added
2500 missing functions (including a catch-all ENGINE_cpy that duplicates
2501 all ENGINE values onto a new ENGINE except reference counts/state).
2502 - Removed NULL parameter checks in get/set functions. Setting a method
2503 or function to NULL is a way of cancelling out a previously set
2504 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2505 and doesn't justify the extra error symbols and code.
2506 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2507 flags from engine_int.h to engine.h.
2508 - Changed prototypes for ENGINE handler functions (init(), finish(),
2509 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2512 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2513 to the algorithm using long division. The binary algorithm can be
2514 used only if the modulus is odd. On 32-bit systems, it is faster
2515 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2516 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2517 up to 450 bits. In 64-bit environments, the binary algorithm
2518 appears to be advantageous for much longer moduli; here we use it
2519 for moduli up to 2048 bits.
2522 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2523 could not support the combine flag in choice fields.
2526 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2527 extensions from a certificate request to the certificate.
2530 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2531 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2532 file: this allows the display of the certificate about to be
2533 signed to be customised, to allow certain fields to be included
2534 or excluded and extension details. The old system didn't display
2535 multicharacter strings properly, omitted fields not in the policy
2536 and couldn't display additional details such as extensions.
2539 *) Function EC_POINTs_mul for multiple scalar multiplication
2540 of an arbitrary number of elliptic curve points
2541 \sum scalars[i]*points[i],
2542 optionally including the generator defined for the EC_GROUP:
2543 scalar*generator + \sum scalars[i]*points[i].
2545 EC_POINT_mul is a simple wrapper function for the typical case
2546 that the point list has just one item (besides the optional
2550 *) First EC_METHODs for curves over GF(p):
2552 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2553 operations and provides various method functions that can also
2554 operate with faster implementations of modular arithmetic.
2556 EC_GFp_mont_method() reuses most functions that are part of
2557 EC_GFp_simple_method, but uses Montgomery arithmetic.
2559 [Bodo Moeller; point addition and point doubling
2560 implementation directly derived from source code provided by
2561 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2563 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2564 crypto/ec/ec_lib.c):
2566 Curves are EC_GROUP objects (with an optional group generator)
2567 based on EC_METHODs that are built into the library.
2569 Points are EC_POINT objects based on EC_GROUP objects.
2571 Most of the framework would be able to handle curves over arbitrary
2572 finite fields, but as there are no obvious types for fields other
2573 than GF(p), some functions are limited to that for now.
2576 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2577 that the file contains a complete HTTP response.
2580 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2581 change the def and num file printf format specifier from "%-40sXXX"
2582 to "%-39s XXX". The latter will always guarantee a space after the
2583 field while the former will cause them to run together if the field
2584 is 40 of more characters long.
2587 *) Constify the cipher and digest 'method' functions and structures
2588 and modify related functions to take constant EVP_MD and EVP_CIPHER
2592 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2593 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2596 *) Modify EVP_Digest*() routines so they now return values. Although the
2597 internal software routines can never fail additional hardware versions
2601 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2603 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2604 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2607 ERR_R_NESTED_ASN1_ERROR
2609 ERR_R_MISSING_ASN1_EOS
2610 were 4 .. 9, conflicting with
2611 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2613 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2614 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2616 Add new error code 'ERR_R_INTERNAL_ERROR'.
2619 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2623 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2624 sets the subject name for a new request or supersedes the
2625 subject name in a given request. Formats that can be parsed are
2626 'CN=Some Name, OU=myOU, C=IT'
2628 'CN=Some Name/OU=myOU/C=IT'.
2630 Add options '-batch' and '-verbose' to 'openssl req'.
2631 [Massimiliano Pala <madwolf@hackmasters.net>]
2633 *) Introduce the possibility to access global variables through
2634 functions on platform were that's the best way to handle exporting
2635 global variables in shared libraries. To enable this functionality,
2636 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2637 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2638 is normally done by Configure or something similar).
2640 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2641 in the source file (foo.c) like this:
2643 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2644 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2646 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2647 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2649 OPENSSL_DECLARE_GLOBAL(int,foo);
2650 #define foo OPENSSL_GLOBAL_REF(foo)
2651 OPENSSL_DECLARE_GLOBAL(double,bar);
2652 #define bar OPENSSL_GLOBAL_REF(bar)
2654 The #defines are very important, and therefore so is including the
2655 header file everywhere where the defined globals are used.
2657 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2658 of ASN.1 items, but that structure is a bit different.
2660 The largest change is in util/mkdef.pl which has been enhanced with
2661 better and easier to understand logic to choose which symbols should
2662 go into the Windows .def files as well as a number of fixes and code
2663 cleanup (among others, algorithm keywords are now sorted
2664 lexicographically to avoid constant rewrites).
2667 *) In BN_div() keep a copy of the sign of 'num' before writing the
2668 result to 'rm' because if rm==num the value will be overwritten
2669 and produce the wrong result if 'num' is negative: this caused
2670 problems with BN_mod() and BN_nnmod().
2673 *) Function OCSP_request_verify(). This checks the signature on an
2674 OCSP request and verifies the signer certificate. The signer
2675 certificate is just checked for a generic purpose and OCSP request
2679 *) Add OCSP_check_validity() function to check the validity of OCSP
2680 responses. OCSP responses are prepared in real time and may only
2681 be a few seconds old. Simply checking that the current time lies
2682 between thisUpdate and nextUpdate max reject otherwise valid responses
2683 caused by either OCSP responder or client clock inaccuracy. Instead
2684 we allow thisUpdate and nextUpdate to fall within a certain period of
2685 the current time. The age of the response can also optionally be
2686 checked. Two new options -validity_period and -status_age added to
2690 *) If signature or public key algorithm is unrecognized print out its
2691 OID rather that just UNKNOWN.
2694 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2695 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2696 ID to be generated from the issuer certificate alone which can then be
2697 passed to OCSP_id_issuer_cmp().
2700 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2701 ASN1 modules to export functions returning ASN1_ITEM pointers
2702 instead of the ASN1_ITEM structures themselves. This adds several
2703 new macros which allow the underlying ASN1 function/structure to
2704 be accessed transparently. As a result code should not use ASN1_ITEM
2705 references directly (such as &X509_it) but instead use the relevant
2706 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2707 use of the new ASN1 code on platforms where exporting structures
2708 is problematical (for example in shared libraries) but exporting
2709 functions returning pointers to structures is not.
2712 *) Add support for overriding the generation of SSL/TLS session IDs.
2713 These callbacks can be registered either in an SSL_CTX or per SSL.
2714 The purpose of this is to allow applications to control, if they wish,
2715 the arbitrary values chosen for use as session IDs, particularly as it
2716 can be useful for session caching in multiple-server environments. A
2717 command-line switch for testing this (and any client code that wishes
2718 to use such a feature) has been added to "s_server".
2719 [Geoff Thorpe, Lutz Jaenicke]
2721 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2722 of the form '#if defined(...) || defined(...) || ...' and
2723 '#if !defined(...) && !defined(...) && ...'. This also avoids
2724 the growing number of special cases it was previously handling.
2727 *) Make all configuration macros available for application by making
2728 sure they are available in opensslconf.h, by giving them names starting
2729 with "OPENSSL_" to avoid conflicts with other packages and by making
2730 sure e_os2.h will cover all platform-specific cases together with
2732 Additionally, it is now possible to define configuration/platform-
2733 specific names (called "system identities"). In the C code, these
2734 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2735 macro with the name beginning with "OPENSSL_SYS_", which is determined
2736 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2740 *) New option -set_serial to 'req' and 'x509' this allows the serial
2741 number to use to be specified on the command line. Previously self
2742 signed certificates were hard coded with serial number 0 and the
2743 CA options of 'x509' had to use a serial number in a file which was
2747 *) New options to 'ca' utility to support V2 CRL entry extensions.
2748 Currently CRL reason, invalidity date and hold instruction are
2749 supported. Add new CRL extensions to V3 code and some new objects.
2752 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2753 disable standard block padding (aka PKCS#5 padding) in the EVP
2754 API, which was previously mandatory. This means that the data is
2755 not padded in any way and so the total length much be a multiple
2756 of the block size, otherwise an error occurs.
2759 *) Initial (incomplete) OCSP SSL support.
2762 *) New function OCSP_parse_url(). This splits up a URL into its host,
2763 port and path components: primarily to parse OCSP URLs. New -url
2764 option to ocsp utility.
2767 *) New nonce behavior. The return value of OCSP_check_nonce() now
2768 reflects the various checks performed. Applications can decide
2769 whether to tolerate certain situations such as an absent nonce
2770 in a response when one was present in a request: the ocsp application
2771 just prints out a warning. New function OCSP_add1_basic_nonce()
2772 this is to allow responders to include a nonce in a response even if
2773 the request is nonce-less.
2776 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2777 skipped when using openssl x509 multiple times on a single input file,
2778 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2781 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2782 set string type: to handle setting ASN1_TIME structures. Fix ca
2783 utility to correctly initialize revocation date of CRLs.
2786 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2787 the clients preferred ciphersuites and rather use its own preferences.
2788 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2789 Internet Explorer by ensuring unchanged hash method during stepup.
2790 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2793 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2794 to aes and add a new 'exist' option to print out symbols that don't
2798 *) Additional options to ocsp utility to allow flags to be set and
2799 additional certificates supplied.
2802 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2803 OCSP client a number of certificate to only verify the response
2807 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2808 handle the new API. Currently only ECB, CBC modes supported. Add new
2811 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2812 Encryption Standard (AES) Ciphersuites for Transport Layer
2813 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2814 not enabled by default and were not part of the "ALL" ciphersuite
2815 alias because they were not yet official; they could be
2816 explicitly requested by specifying the "AESdraft" ciphersuite
2817 group alias. In the final release of OpenSSL 0.9.7, the group
2818 alias is called "AES" and is part of "ALL".)
2819 [Ben Laurie, Steve Henson, Bodo Moeller]
2821 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2822 request to response.
2825 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2826 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2827 extract information from a certificate request. OCSP_response_create()
2828 creates a response and optionally adds a basic response structure.
2829 OCSP_basic_add1_status() adds a complete single response to a basic
2830 response and returns the OCSP_SINGLERESP structure just added (to allow
2831 extensions to be included for example). OCSP_basic_add1_cert() adds a
2832 certificate to a basic response and OCSP_basic_sign() signs a basic
2833 response with various flags. New helper functions ASN1_TIME_check()
2834 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2835 (converts ASN1_TIME to GeneralizedTime).
2838 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2839 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2840 structure from a certificate. X509_pubkey_digest() digests the public_key
2841 contents: this is used in various key identifiers.
2844 *) Make sk_sort() tolerate a NULL argument.
2845 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2847 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2848 passed by the function are trusted implicitly. If any of them signed the
2849 response then it is assumed to be valid and is not verified.
2852 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2853 to data. This was previously part of the PKCS7 ASN1 code. This
2854 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2855 [Steve Henson, reported by Kenneth R. Robinette
2856 <support@securenetterm.com>]
2858 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2859 routines: without these tracing memory leaks is very painful.
2860 Fix leaks in PKCS12 and PKCS7 routines.
2863 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2864 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2865 effectively meant GeneralizedTime would never be used. Now it
2866 is initialised to -1 but X509_time_adj() now has to check the value
2867 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2868 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2869 [Steve Henson, reported by Kenneth R. Robinette
2870 <support@securenetterm.com>]
2872 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2873 result in a zero length in the ASN1_INTEGER structure which was
2874 not consistent with the structure when d2i_ASN1_INTEGER() was used
2875 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2876 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2877 where it did not print out a minus for negative ASN1_INTEGER.
2880 *) Add summary printout to ocsp utility. The various functions which
2881 convert status values to strings have been renamed to:
2882 OCSP_response_status_str(), OCSP_cert_status_str() and
2883 OCSP_crl_reason_str() and are no longer static. New options
2884 to verify nonce values and to disable verification. OCSP response
2885 printout format cleaned up.
2888 *) Add additional OCSP certificate checks. These are those specified
2889 in RFC2560. This consists of two separate checks: the CA of the
2890 certificate being checked must either be the OCSP signer certificate
2891 or the issuer of the OCSP signer certificate. In the latter case the
2892 OCSP signer certificate must contain the OCSP signing extended key
2893 usage. This check is performed by attempting to match the OCSP
2894 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2895 in the OCSP_CERTID structures of the response.
2898 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2899 and related routines. This uses the standard OpenSSL certificate
2900 verify routines to perform initial checks (just CA validity) and
2901 to obtain the certificate chain. Then additional checks will be
2902 performed on the chain. Currently the root CA is checked to see
2903 if it is explicitly trusted for OCSP signing. This is used to set
2904 a root CA as a global signing root: that is any certificate that
2905 chains to that CA is an acceptable OCSP signing certificate.
2908 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2909 extensions from a separate configuration file.
2910 As when reading extensions from the main configuration file,
2911 the '-extensions ...' option may be used for specifying the
2913 [Massimiliano Pala <madwolf@comune.modena.it>]
2915 *) New OCSP utility. Allows OCSP requests to be generated or
2916 read. The request can be sent to a responder and the output
2917 parsed, outputed or printed in text form. Not complete yet:
2918 still needs to check the OCSP response validity.
2921 *) New subcommands for 'openssl ca':
2922 'openssl ca -status <serial>' prints the status of the cert with
2923 the given serial number (according to the index file).
2924 'openssl ca -updatedb' updates the expiry status of certificates
2926 [Massimiliano Pala <madwolf@comune.modena.it>]
2928 *) New '-newreq-nodes' command option to CA.pl. This is like
2929 '-newreq', but calls 'openssl req' with the '-nodes' option
2930 so that the resulting key is not encrypted.
2931 [Damien Miller <djm@mindrot.org>]
2933 *) New configuration for the GNU Hurd.
2934 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2936 *) Initial code to implement OCSP basic response verify. This
2937 is currently incomplete. Currently just finds the signer's
2938 certificate and verifies the signature on the response.
2941 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2942 value of OPENSSLDIR. This is available via the new '-d' option
2943 to 'openssl version', and is also included in 'openssl version -a'.
2946 *) Allowing defining memory allocation callbacks that will be given
2947 file name and line number information in additional arguments
2948 (a const char* and an int). The basic functionality remains, as
2949 well as the original possibility to just replace malloc(),
2950 realloc() and free() by functions that do not know about these
2951 additional arguments. To register and find out the current
2952 settings for extended allocation functions, the following
2953 functions are provided:
2955 CRYPTO_set_mem_ex_functions
2956 CRYPTO_set_locked_mem_ex_functions
2957 CRYPTO_get_mem_ex_functions
2958 CRYPTO_get_locked_mem_ex_functions
2960 These work the same way as CRYPTO_set_mem_functions and friends.
2961 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2962 extended allocation function is enabled.
2963 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2964 a conventional allocation function is enabled.
2965 [Richard Levitte, Bodo Moeller]
2967 *) Finish off removing the remaining LHASH function pointer casts.
2968 There should no longer be any prototype-casting required when using
2969 the LHASH abstraction, and any casts that remain are "bugs". See
2970 the callback types and macros at the head of lhash.h for details
2971 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2974 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2975 If /dev/[u]random devices are not available or do not return enough
2976 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2978 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2979 /etc/entropy will be queried once each in this sequence, quering stops
2980 when enough entropy was collected without querying more sockets.
2983 *) Change the Unix RAND_poll() variant to be able to poll several
2984 random devices, as specified by DEVRANDOM, until a sufficient amount
2985 of data has been collected. We spend at most 10 ms on each file
2986 (select timeout) and read in non-blocking mode. DEVRANDOM now
2987 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2988 (previously it was just the string "/dev/urandom"), so on typical
2989 platforms the 10 ms delay will never occur.
2990 Also separate out the Unix variant to its own file, rand_unix.c.
2991 For VMS, there's a currently-empty rand_vms.c.
2994 *) Move OCSP client related routines to ocsp_cl.c. These
2995 provide utility functions which an application needing
2996 to issue a request to an OCSP responder and analyse the
2997 response will typically need: as opposed to those which an
2998 OCSP responder itself would need which will be added later.
3000 OCSP_request_sign() signs an OCSP request with an API similar
3001 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3002 response. OCSP_response_get1_basic() extracts basic response
3003 from response. OCSP_resp_find_status(): finds and extracts status
3004 information from an OCSP_CERTID structure (which will be created
3005 when the request structure is built). These are built from lower
3006 level functions which work on OCSP_SINGLERESP structures but
3007 wont normally be used unless the application wishes to examine
3008 extensions in the OCSP response for example.
3010 Replace nonce routines with a pair of functions.
3011 OCSP_request_add1_nonce() adds a nonce value and optionally
3012 generates a random value. OCSP_check_nonce() checks the
3013 validity of the nonce in an OCSP response.
3016 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3017 This doesn't copy the supplied OCSP_CERTID and avoids the
3018 need to free up the newly created id. Change return type
3019 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3020 This can then be used to add extensions to the request.
3021 Deleted OCSP_request_new(), since most of its functionality
3022 is now in OCSP_REQUEST_new() (and the case insensitive name
3023 clash) apart from the ability to set the request name which
3024 will be added elsewhere.
3027 *) Update OCSP API. Remove obsolete extensions argument from
3028 various functions. Extensions are now handled using the new
3029 OCSP extension code. New simple OCSP HTTP function which
3030 can be used to send requests and parse the response.
3033 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3034 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3035 uses the special reorder version of SET OF to sort the attributes
3036 and reorder them to match the encoded order. This resolves a long
3037 standing problem: a verify on a PKCS7 structure just after signing
3038 it used to fail because the attribute order did not match the
3039 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3040 it uses the received order. This is necessary to tolerate some broken
3041 software that does not order SET OF. This is handled by encoding
3042 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3043 to produce the required SET OF.
3046 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3047 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3048 files to get correct declarations of the ASN.1 item variables.
3051 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3052 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3053 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3054 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3055 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3056 ASN1_ITEM and no wrapper functions.
3059 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3060 replace the old function pointer based I/O routines. Change most of
3061 the *_d2i_bio() and *_d2i_fp() functions to use these.
3064 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3065 lines, recognice more "algorithms" that can be deselected, and make
3066 it complain about algorithm deselection that isn't recognised.
3069 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3070 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3071 to use new functions. Add NO_ASN1_OLD which can be set to remove
3072 some old style ASN1 functions: this can be used to determine if old
3073 code will still work when these eventually go away.
3076 *) New extension functions for OCSP structures, these follow the
3077 same conventions as certificates and CRLs.
3080 *) New function X509V3_add1_i2d(). This automatically encodes and
3081 adds an extension. Its behaviour can be customised with various
3082 flags to append, replace or delete. Various wrappers added for
3083 certifcates and CRLs.
3086 *) Fix to avoid calling the underlying ASN1 print routine when
3087 an extension cannot be parsed. Correct a typo in the
3088 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3091 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3092 entries for variables.
3095 *) Add functionality to apps/openssl.c for detecting locking
3096 problems: As the program is single-threaded, all we have
3097 to do is register a locking callback using an array for
3098 storing which locks are currently held by the program.
3101 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3102 SSL_get_ex_data_X509_STORE_idx(), which is used in
3103 ssl_verify_cert_chain() and thus can be called at any time
3104 during TLS/SSL handshakes so that thread-safety is essential.
3105 Unfortunately, the ex_data design is not at all suited
3106 for multi-threaded use, so it probably should be abolished.
3109 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3110 [Broadcom, tweaked and integrated by Geoff Thorpe]
3112 *) Move common extension printing code to new function
3113 X509V3_print_extensions(). Reorganise OCSP print routines and
3114 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3117 *) New function X509_signature_print() to remove duplication in some
3121 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3122 set (this was treated exactly the same as SET OF previously). This
3123 is used to reorder the STACK representing the structure to match the
3124 encoding. This will be used to get round a problem where a PKCS7
3125 structure which was signed could not be verified because the STACK
3126 order did not reflect the encoded order.
3129 *) Reimplement the OCSP ASN1 module using the new code.
3132 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3133 for its ASN1 operations. The old style function pointers still exist
3134 for now but they will eventually go away.
3137 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3138 completely replaces the old ASN1 functionality with a table driven
3139 encoder and decoder which interprets an ASN1_ITEM structure describing
3140 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3141 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3142 has also been converted to the new form.
3145 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3146 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3147 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3148 for negative moduli.
3151 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3152 of not touching the result's sign bit.
3155 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3159 *) Changed the LHASH code to use prototypes for callbacks, and created
3160 macros to declare and implement thin (optionally static) functions
3161 that provide type-safety and avoid function pointer casting for the
3162 type-specific callbacks.
3165 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3167 [Veers Staats <staatsvr@asc.hpc.mil>,
3168 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3170 *) Reformat the FAQ so the different questions and answers can be divided
3171 in sections depending on the subject.
3174 *) Have the zlib compression code load ZLIB.DLL dynamically under
3178 *) New function BN_mod_sqrt for computing square roots modulo a prime
3179 (using the probabilistic Tonelli-Shanks algorithm unless
3180 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3181 be handled deterministically).
3182 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3184 *) Make BN_mod_inverse faster by explicitly handling small quotients
3185 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3186 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3189 *) New function BN_kronecker.
3192 *) Fix BN_gcd so that it works on negative inputs; the result is
3193 positive unless both parameters are zero.
3194 Previously something reasonably close to an infinite loop was
3195 possible because numbers could be growing instead of shrinking
3196 in the implementation of Euclid's algorithm.
3199 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3200 sign of the number in question.
3202 Fix BN_is_word(a,w) to work correctly for w == 0.
3204 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3205 because its test if the absolute value of 'a' equals 'w'.
3206 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3207 it exists mostly for use in the implementations of BN_is_zero(),
3208 BN_is_one(), and BN_is_word().
3211 *) New function BN_swap.
3214 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3215 the exponentiation functions are more likely to produce reasonable
3216 results on negative inputs.
3219 *) Change BN_mod_mul so that the result is always non-negative.
3220 Previously, it could be negative if one of the factors was negative;
3221 I don't think anyone really wanted that behaviour.
3224 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3225 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3226 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3227 and add new functions:
3236 BN_mod_lshift1_quick
3240 These functions always generate non-negative results.
3242 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3243 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3245 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3246 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3247 be reduced modulo m.
3248 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3251 The following entry accidentily appeared in the CHANGES file
3252 distributed with OpenSSL 0.9.7. The modifications described in
3253 it do *not* apply to OpenSSL 0.9.7.
3255 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3256 was actually never needed) and in BN_mul(). The removal in BN_mul()
3257 required a small change in bn_mul_part_recursive() and the addition
3258 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3259 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3260 bn_sub_words() and bn_add_words() except they take arrays with
3265 *) In 'openssl passwd', verify passwords read from the terminal
3266 unless the '-salt' option is used (which usually means that
3267 verification would just waste user's time since the resulting
3268 hash is going to be compared with some given password hash)
3269 or the new '-noverify' option is used.
3271 This is an incompatible change, but it does not affect
3272 non-interactive use of 'openssl passwd' (passwords on the command
3273 line, '-stdin' option, '-in ...' option) and thus should not
3277 *) Remove all references to RSAref, since there's no more need for it.
3280 *) Make DSO load along a path given through an environment variable
3281 (SHLIB_PATH) with shl_load().
3284 *) Constify the ENGINE code as a result of BIGNUM constification.
3285 Also constify the RSA code and most things related to it. In a
3286 few places, most notable in the depth of the ASN.1 code, ugly
3287 casts back to non-const were required (to be solved at a later
3291 *) Make it so the openssl application has all engines loaded by default.
3294 *) Constify the BIGNUM routines a little more.
3297 *) Add the following functions:
3299 ENGINE_load_cswift()
3301 ENGINE_load_atalla()
3303 ENGINE_load_builtin_engines()
3305 That way, an application can itself choose if external engines that
3306 are built-in in OpenSSL shall ever be used or not. The benefit is
3307 that applications won't have to be linked with libdl or other dso
3308 libraries unless it's really needed.
3310 Changed 'openssl engine' to load all engines on demand.
3311 Changed the engine header files to avoid the duplication of some
3312 declarations (they differed!).
3315 *) 'openssl engine' can now list capabilities.
3318 *) Better error reporting in 'openssl engine'.
3321 *) Never call load_dh_param(NULL) in s_server.
3324 *) Add engine application. It can currently list engines by name and
3325 identity, and test if they are actually available.
3328 *) Improve RPM specification file by forcing symbolic linking and making
3329 sure the installed documentation is also owned by root.root.
3330 [Damien Miller <djm@mindrot.org>]
3332 *) Give the OpenSSL applications more possibilities to make use of
3333 keys (public as well as private) handled by engines.
3336 *) Add OCSP code that comes from CertCo.
3339 *) Add VMS support for the Rijndael code.
3342 *) Added untested support for Nuron crypto accelerator.
3345 *) Add support for external cryptographic devices. This code was
3346 previously distributed separately as the "engine" branch.
3347 [Geoff Thorpe, Richard Levitte]
3349 *) Rework the filename-translation in the DSO code. It is now possible to
3350 have far greater control over how a "name" is turned into a filename
3351 depending on the operating environment and any oddities about the
3352 different shared library filenames on each system.
3355 *) Support threads on FreeBSD-elf in Configure.
3358 *) Fix for SHA1 assembly problem with MASM: it produces
3359 warnings about corrupt line number information when assembling
3360 with debugging information. This is caused by the overlapping
3362 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3365 NCONF_get_number() has no error checking at all. As a replacement,
3366 NCONF_get_number_e() is defined (_e for "error checking") and is
3367 promoted strongly. The old NCONF_get_number is kept around for
3368 binary backward compatibility.
3369 Make it possible for methods to load from something other than a BIO,
3370 by providing a function pointer that is given a name instead of a BIO.
3371 For example, this could be used to load configuration data from an
3375 *) Fix for non blocking accept BIOs. Added new I/O special reason
3376 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3377 with non blocking I/O was not possible because no retry code was
3378 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3382 *) Added the beginnings of Rijndael support.
3385 *) Fix for bug in DirectoryString mask setting. Add support for
3386 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3387 to allow certificate printing to more controllable, additional
3388 'certopt' option to 'x509' to allow new printing options to be
3392 *) Clean old EAY MD5 hack from e_os.h.
3395 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3397 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3398 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3399 [Joe Orton, Steve Henson]
3401 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3403 *) Fix additional bug revealed by the NISCC test suite:
3405 Stop bug triggering large recursion when presented with
3406 certain ASN.1 tags (CVE-2003-0851)
3409 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3411 *) Fix various bugs revealed by running the NISCC test suite:
3413 Stop out of bounds reads in the ASN1 code when presented with
3414 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3416 If verify callback ignores invalid public key errors don't try to check
3417 certificate signature with the NULL public key.
3421 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3422 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3426 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3427 extra data after the compression methods not only for TLS 1.0
3428 but also for SSL 3.0 (as required by the specification).
3429 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3431 *) Change X509_certificate_type() to mark the key as exported/exportable
3432 when it's 512 *bits* long, not 512 bytes.
3435 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3437 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3438 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3439 a protocol version number mismatch like a decryption error
3440 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3443 *) Turn on RSA blinding by default in the default implementation
3444 to avoid a timing attack. Applications that don't want it can call
3445 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3446 They would be ill-advised to do so in most cases.
3447 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3449 *) Change RSA blinding code so that it works when the PRNG is not
3450 seeded (in this case, the secret RSA exponent is abused as
3451 an unpredictable seed -- if it is not unpredictable, there
3452 is no point in blinding anyway). Make RSA blinding thread-safe
3453 by remembering the creator's thread ID in rsa->blinding and
3454 having all other threads use local one-time blinding factors
3455 (this requires more computation than sharing rsa->blinding, but
3456 avoids excessive locking; and if an RSA object is not shared
3457 between threads, blinding will still be very fast).
3460 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3462 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3463 via timing by performing a MAC computation even if incorrrect
3464 block cipher padding has been found. This is a countermeasure
3465 against active attacks where the attacker has to distinguish
3466 between bad padding and a MAC verification error. (CVE-2003-0078)
3468 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3469 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3470 Martin Vuagnoux (EPFL, Ilion)]
3472 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3474 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3475 memory from it's contents. This is done with a counter that will
3476 place alternating values in each byte. This can be used to solve
3477 two issues: 1) the removal of calls to memset() by highly optimizing
3478 compilers, and 2) cleansing with other values than 0, since those can
3479 be read through on certain media, for example a swap space on disk.
3482 *) Bugfix: client side session caching did not work with external caching,
3483 because the session->cipher setting was not restored when reloading
3484 from the external cache. This problem was masked, when
3485 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3486 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3489 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3490 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3491 [Zeev Lieber <zeev-l@yahoo.com>]
3493 *) Undo an undocumented change introduced in 0.9.6e which caused
3494 repeated calls to OpenSSL_add_all_ciphers() and
3495 OpenSSL_add_all_digests() to be ignored, even after calling
3499 *) Change the default configuration reader to deal with last line not
3500 being properly terminated.
3503 *) Change X509_NAME_cmp() so it applies the special rules on handling
3504 DN values that are of type PrintableString, as well as RDNs of type
3505 emailAddress where the value has the type ia5String.
3506 [stefank@valicert.com via Richard Levitte]
3508 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3509 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3510 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3511 the bitwise-OR of the two for use by the majority of applications
3512 wanting this behaviour, and update the docs. The documented
3513 behaviour and actual behaviour were inconsistent and had been
3514 changing anyway, so this is more a bug-fix than a behavioural
3516 [Geoff Thorpe, diagnosed by Nadav Har'El]
3518 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3519 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3522 *) Fix initialization code race conditions in
3523 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3524 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3525 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3526 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3527 ssl2_get_cipher_by_char(),
3528 ssl3_get_cipher_by_char().
3529 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3531 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3532 the cached sessions are flushed, as the remove_cb() might use ex_data
3533 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3534 (see [openssl.org #212]).
3535 [Geoff Thorpe, Lutz Jaenicke]
3537 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3538 length, instead of the encoding length to d2i_ASN1_OBJECT.
3541 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3543 *) [In 0.9.6g-engine release:]
3544 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3545 [Lynn Gazis <lgazis@rainbow.com>]
3547 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3549 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3550 and get fix the header length calculation.
3551 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3552 Alon Kantor <alonk@checkpoint.com> (and others),
3555 *) Use proper error handling instead of 'assertions' in buffer
3556 overflow checks added in 0.9.6e. This prevents DoS (the
3557 assertions could call abort()).
3558 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3560 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3562 *) Add various sanity checks to asn1_get_length() to reject
3563 the ASN1 length bytes if they exceed sizeof(long), will appear
3564 negative or the content length exceeds the length of the
3566 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3568 *) Fix cipher selection routines: ciphers without encryption had no flags
3569 for the cipher strength set and where therefore not handled correctly
3570 by the selection routines (PR #130).
3573 *) Fix EVP_dsa_sha macro.
3577 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3578 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3579 that was added in OpenSSL 0.9.6d.
3581 As the countermeasure turned out to be incompatible with some
3582 broken SSL implementations, the new option is part of SSL_OP_ALL.
3583 SSL_OP_ALL is usually employed when compatibility with weird SSL
3584 implementations is desired (e.g. '-bugs' option to 's_client' and
3585 's_server'), so the new option is automatically set in many
3589 *) Changes in security patch:
3591 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3592 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3593 Air Force Materiel Command, USAF, under agreement number
3596 *) Add various sanity checks to asn1_get_length() to reject
3597 the ASN1 length bytes if they exceed sizeof(long), will appear
3598 negative or the content length exceeds the length of the
3599 supplied buffer. (CVE-2002-0659)
3600 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3602 *) Assertions for various potential buffer overflows, not known to
3604 [Ben Laurie (CHATS)]
3606 *) Various temporary buffers to hold ASCII versions of integers were
3607 too small for 64 bit platforms. (CVE-2002-0655)
3608 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3610 *) Remote buffer overflow in SSL3 protocol - an attacker could
3611 supply an oversized session ID to a client. (CVE-2002-0656)
3612 [Ben Laurie (CHATS)]
3614 *) Remote buffer overflow in SSL2 protocol - an attacker could
3615 supply an oversized client master key. (CVE-2002-0656)
3616 [Ben Laurie (CHATS)]
3618 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3620 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3621 encoded as NULL) with id-dsa-with-sha1.
3622 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3624 *) Check various X509_...() return values in apps/req.c.
3625 [Nils Larsch <nla@trustcenter.de>]
3627 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3628 an end-of-file condition would erronously be flagged, when the CRLF
3629 was just at the end of a processed block. The bug was discovered when
3630 processing data through a buffering memory BIO handing the data to a
3631 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3632 <ptsekov@syntrex.com> and Nedelcho Stanev.
3635 *) Implement a countermeasure against a vulnerability recently found
3636 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3637 before application data chunks to avoid the use of known IVs
3638 with data potentially chosen by the attacker.
3641 *) Fix length checks in ssl3_get_client_hello().
3644 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3645 to prevent ssl3_read_internal() from incorrectly assuming that
3646 ssl3_read_bytes() found application data while handshake
3647 processing was enabled when in fact s->s3->in_read_app_data was
3648 merely automatically cleared during the initial handshake.
3649 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3651 *) Fix object definitions for Private and Enterprise: they were not
3652 recognized in their shortname (=lowercase) representation. Extend
3653 obj_dat.pl to issue an error when using undefined keywords instead
3654 of silently ignoring the problem (Svenning Sorensen
3655 <sss@sss.dnsalias.net>).
3658 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3659 generators, i.e. generators other than 2 and 5. (Previously, the
3660 code did not properly initialise the 'add' and 'rem' values to
3661 BN_generate_prime().)
3663 In the new general case, we do not insist that 'generator' is
3664 actually a primitive root: This requirement is rather pointless;
3665 a generator of the order-q subgroup is just as good, if not
3669 *) Map new X509 verification errors to alerts. Discovered and submitted by
3670 Tom Wu <tom@arcot.com>.
3673 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3674 returning non-zero before the data has been completely received
3675 when using non-blocking I/O.
3676 [Bodo Moeller; problem pointed out by John Hughes]
3678 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3679 [Ben Laurie, Lutz Jaenicke]
3681 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3682 Yoram Zahavi <YoramZ@gilian.com>).
3685 *) Add information about CygWin 1.3 and on, and preserve proper
3686 configuration for the versions before that.
3687 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3689 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3690 check whether we deal with a copy of a session and do not delete from
3691 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3692 <izhar@checkpoint.com>.
3695 *) Do not store session data into the internal session cache, if it
3696 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3697 flag is set). Proposed by Aslam <aslam@funk.com>.
3700 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3704 *) [In 0.9.6d-engine release:]
3705 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3706 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3708 *) Add the configuration target linux-s390x.
3709 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3711 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3712 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3713 variable as an indication that a ClientHello message has been
3714 received. As the flag value will be lost between multiple
3715 invocations of ssl3_accept when using non-blocking I/O, the
3716 function may not be aware that a handshake has actually taken
3717 place, thus preventing a new session from being added to the
3720 To avoid this problem, we now set s->new_session to 2 instead of
3721 using a local variable.
3722 [Lutz Jaenicke, Bodo Moeller]
3724 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3725 if the SSL_R_LENGTH_MISMATCH error is detected.
3726 [Geoff Thorpe, Bodo Moeller]
3728 *) New 'shared_ldflag' column in Configure platform table.
3731 *) Fix EVP_CIPHER_mode macro.
3732 ["Dan S. Camper" <dan@bti.net>]
3734 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3735 type, we must throw them away by setting rr->length to 0.
3736 [D P Chang <dpc@qualys.com>]
3738 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3740 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3741 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3742 worked incorrectly for those cases where range = 10..._2 and
3743 3*range is two bits longer than range.)
3746 *) Only add signing time to PKCS7 structures if it is not already
3750 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3751 OBJ_ld_ce should be OBJ_id_ce.
3752 Also some ip-pda OIDs in crypto/objects/objects.txt were
3753 incorrect (cf. RFC 3039).
3754 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3756 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3757 returns early because it has nothing to do.
3758 [Andy Schneider <andy.schneider@bjss.co.uk>]
3760 *) [In 0.9.6c-engine release:]
3761 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3762 [Andy Schneider <andy.schneider@bjss.co.uk>]
3764 *) [In 0.9.6c-engine release:]
3765 Add support for Cryptographic Appliance's keyserver technology.
3766 (Use engine 'keyclient')
3767 [Cryptographic Appliances and Geoff Thorpe]
3769 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3770 is called via tools/c89.sh because arguments have to be
3771 rearranged (all '-L' options must appear before the first object
3773 [Richard Shapiro <rshapiro@abinitio.com>]
3775 *) [In 0.9.6c-engine release:]
3776 Add support for Broadcom crypto accelerator cards, backported
3778 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3780 *) [In 0.9.6c-engine release:]
3781 Add support for SureWare crypto accelerator cards from
3782 Baltimore Technologies. (Use engine 'sureware')
3783 [Baltimore Technologies and Mark Cox]
3785 *) [In 0.9.6c-engine release:]
3786 Add support for crypto accelerator cards from Accelerated
3787 Encryption Processing, www.aep.ie. (Use engine 'aep')
3788 [AEP Inc. and Mark Cox]
3790 *) Add a configuration entry for gcc on UnixWare.
3791 [Gary Benson <gbenson@redhat.com>]
3793 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3794 messages are stored in a single piece (fixed-length part and
3795 variable-length part combined) and fix various bugs found on the way.
3798 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3799 instead. BIO_gethostbyname() does not know what timeouts are
3800 appropriate, so entries would stay in cache even when they have
3802 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3804 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3805 faced with a pathologically small ClientHello fragment that does
3806 not contain client_version: Instead of aborting with an error,
3807 simply choose the highest available protocol version (i.e.,
3808 TLS 1.0 unless it is disabled). In practice, ClientHello
3809 messages are never sent like this, but this change gives us
3810 strictly correct behaviour at least for TLS.
3813 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3814 never resets s->method to s->ctx->method when called from within
3815 one of the SSL handshake functions.
3816 [Bodo Moeller; problem pointed out by Niko Baric]
3818 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3819 (sent using the client's version number) if client_version is
3820 smaller than the protocol version in use. Also change
3821 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3822 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3823 the client will at least see that alert.
3826 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3830 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3831 client receives HelloRequest while in a handshake.
3832 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3834 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3835 should end in 'break', not 'goto end' which circuments various
3836 cleanups done in state SSL_ST_OK. But session related stuff
3837 must be disabled for SSL_ST_OK in the case that we just sent a
3840 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3841 before just sending a HelloRequest.
3842 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3844 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3845 reveal whether illegal block cipher padding was found or a MAC
3846 verification error occured. (Neither SSLerr() codes nor alerts
3847 are directly visible to potential attackers, but the information
3848 may leak via logfiles.)
3850 Similar changes are not required for the SSL 2.0 implementation
3851 because the number of padding bytes is sent in clear for SSL 2.0,
3852 and the extra bytes are just ignored. However ssl/s2_pkt.c
3853 failed to verify that the purported number of padding bytes is in
3857 *) Add OpenUNIX-8 support including shared libraries
3858 (Boyd Lynn Gerber <gerberb@zenez.com>).
3861 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3862 'wristwatch attack' using huge encoding parameters (cf.
3863 James H. Manger's CRYPTO 2001 paper). Note that the
3864 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3865 encoding parameters and hence was not vulnerable.
3868 *) BN_sqr() bug fix.
3869 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3871 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3872 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3873 followed by modular reduction.
3874 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3876 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3877 equivalent based on BN_pseudo_rand() instead of BN_rand().
3880 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3881 This function was broken, as the check for a new client hello message
3882 to handle SGC did not allow these large messages.
3883 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3886 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3889 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3890 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3893 *) Rework the configuration and shared library support for Tru64 Unix.
3894 The configuration part makes use of modern compiler features and
3895 still retains old compiler behavior for those that run older versions
3896 of the OS. The shared library support part includes a variant that
3897 uses the RPATH feature, and is available through the special
3898 configuration target "alpha-cc-rpath", which will never be selected
3900 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3902 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3903 with the same message size as in ssl3_get_certificate_request().
3904 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3905 messages might inadvertently be reject as too long.
3906 [Petr Lampa <lampa@fee.vutbr.cz>]
3908 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3911 *) Modified SSL library such that the verify_callback that has been set
3912 specificly for an SSL object with SSL_set_verify() is actually being
3913 used. Before the change, a verify_callback set with this function was
3914 ignored and the verify_callback() set in the SSL_CTX at the time of
3915 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3916 to allow the necessary settings.
3919 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3920 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3921 done automatically (in contradiction to the requirements of the C
3922 standard). This made problems when used from OpenSSH.
3925 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3926 dh->length and always used
3928 BN_rand_range(priv_key, dh->p).
3930 BN_rand_range() is not necessary for Diffie-Hellman, and this
3931 specific range makes Diffie-Hellman unnecessarily inefficient if
3932 dh->length (recommended exponent length) is much smaller than the
3933 length of dh->p. We could use BN_rand_range() if the order of
3934 the subgroup was stored in the DH structure, but we only have
3939 BN_rand(priv_key, l, ...)
3941 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3947 RSA_eay_public_encrypt
3948 RSA_eay_private_decrypt
3949 RSA_eay_private_encrypt (signing)
3950 RSA_eay_public_decrypt (signature verification)
3952 (default implementations for RSA_public_encrypt,
3953 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3954 always reject numbers >= n.
3957 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3958 to synchronize access to 'locking_thread'. This is necessary on
3959 systems where access to 'locking_thread' (an 'unsigned long'
3960 variable) is not atomic.
3963 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3964 *before* setting the 'crypto_lock_rand' flag. The previous code had
3965 a race condition if 0 is a valid thread ID.
3966 [Travis Vitek <vitek@roguewave.com>]
3968 *) Add support for shared libraries under Irix.
3969 [Albert Chin-A-Young <china@thewrittenword.com>]
3971 *) Add configuration option to build on Linux on both big-endian and
3973 [Ralf Baechle <ralf@uni-koblenz.de>]
3975 *) Add the possibility to create shared libraries on HP-UX.
3978 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3980 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3981 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3982 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3983 PRNG state recovery was possible based on the output of
3984 one PRNG request appropriately sized to gain knowledge on
3985 'md' followed by enough consecutive 1-byte PRNG requests
3986 to traverse all of 'state'.
3988 1. When updating 'md_local' (the current thread's copy of 'md')
3989 during PRNG output generation, hash all of the previous
3990 'md_local' value, not just the half used for PRNG output.
3992 2. Make the number of bytes from 'state' included into the hash
3993 independent from the number of PRNG bytes requested.
3995 The first measure alone would be sufficient to avoid
3996 Markku-Juhani's attack. (Actually it had never occurred
3997 to me that the half of 'md_local' used for chaining was the
3998 half from which PRNG output bytes were taken -- I had always
3999 assumed that the secret half would be used.) The second
4000 measure makes sure that additional data from 'state' is never
4001 mixed into 'md_local' in small portions; this heuristically
4002 further strengthens the PRNG.
4005 *) Fix crypto/bn/asm/mips3.s.
4008 *) When only the key is given to "enc", the IV is undefined. Print out
4009 an error message in this case.
4012 *) Handle special case when X509_NAME is empty in X509 printing routines.
4015 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4016 positive and less than q.
4019 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4020 used: it isn't thread safe and the add_lock_callback should handle
4022 [Paul Rose <Paul.Rose@bridge.com>]
4024 *) Verify that incoming data obeys the block size in
4025 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4029 [Ulf Möller, Bodo Möller]
4031 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4032 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4033 when fixing the server behaviour for backwards-compatible 'client
4034 hello' messages. (Note that the attack is impractical against
4035 SSL 3.0 and TLS 1.0 anyway because length and version checking
4036 means that the probability of guessing a valid ciphertext is
4037 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4040 Before 0.9.5, the countermeasure (hide the error by generating a
4041 random 'decryption result') did not work properly because
4042 ERR_clear_error() was missing, meaning that SSL_get_error() would
4043 detect the supposedly ignored error.
4045 Both problems are now fixed.
4048 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4049 (previously it was 1024).
4052 *) Fix for compatibility mode trust settings: ignore trust settings
4053 unless some valid trust or reject settings are present.
4056 *) Fix for blowfish EVP: its a variable length cipher.
4059 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4060 parameters in DSA public key structures and return an error in the
4061 DSA routines if parameters are absent.
4064 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4065 in the current directory if neither $RANDFILE nor $HOME was set.
4066 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4067 caused some confusion to Windows users who haven't defined $HOME.
4068 Thus RAND_file_name() is changed again: e_os.h can define a
4069 DEFAULT_HOME, which will be used if $HOME is not set.
4070 For Windows, we use "C:"; on other platforms, we still require
4071 environment variables.
4073 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4074 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4075 having multiple threads call RAND_poll() concurrently.
4078 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4079 combination of a flag and a thread ID variable.
4080 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4081 flag), *other* threads can enter ssleay_add_bytes without obeying
4082 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4083 that they do not hold after the first thread unsets add_do_not_lock).
4086 *) Change bctest again: '-x' expressions are not available in all
4090 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4092 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4093 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4095 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4096 the default extension for executables, if any. Also, make the perl
4097 scripts that use symlink() to test if it really exists and use "cp"
4098 if it doesn't. All this made OpenSSL compilable and installable in
4102 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4103 If SEQUENCE is length is indefinite just set c->slen to the total
4104 amount of data available.
4105 [Steve Henson, reported by shige@FreeBSD.org]
4106 [This change does not apply to 0.9.7.]
4108 *) Change bctest to avoid here-documents inside command substitution
4109 (workaround for FreeBSD /bin/sh bug).
4110 For compatibility with Ultrix, avoid shell functions (introduced
4111 in the bctest version that searches along $PATH).
4114 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4115 with des_encrypt() defined on some operating systems, like Solaris
4119 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4120 On the Importance of Eliminating Errors in Cryptographic
4121 Computations, J. Cryptology 14 (2001) 2, 101-119,
4122 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4125 *) MIPS assembler BIGNUM division bug fix.
4128 *) Disabled incorrect Alpha assembler code.
4131 *) Fix PKCS#7 decode routines so they correctly update the length
4132 after reading an EOC for the EXPLICIT tag.
4134 [This change does not apply to 0.9.7.]
4136 *) Fix bug in PKCS#12 key generation routines. This was triggered
4137 if a 3DES key was generated with a 0 initial byte. Include
4138 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4139 (but broken) behaviour.
4142 *) Enhance bctest to search for a working bc along $PATH and print
4144 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4146 *) Fix memory leaks in err.c: free err_data string if necessary;
4147 don't write to the wrong index in ERR_set_error_data.
4150 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4154 *) Replace rdtsc with _emit statements for VC++ version 5.
4155 [Jeremy Cooper <jeremy@baymoo.org>]
4157 *) Make it possible to reuse SSLv2 sessions.
4160 *) In copy_email() check for >= 0 as a return value for
4161 X509_NAME_get_index_by_NID() since 0 is a valid index.
4162 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4164 *) Avoid coredump with unsupported or invalid public keys by checking if
4165 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4166 PKCS7_verify() fails with non detached data.
4169 *) Don't use getenv in library functions when run as setuid/setgid.
4170 New function OPENSSL_issetugid().
4173 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4174 due to incorrect handling of multi-threading:
4176 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4178 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4180 3. Count how many times MemCheck_off() has been called so that
4181 nested use can be treated correctly. This also avoids
4182 inband-signalling in the previous code (which relied on the
4183 assumption that thread ID 0 is impossible).
4186 *) Add "-rand" option also to s_client and s_server.
4189 *) Fix CPU detection on Irix 6.x.
4190 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4191 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4193 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4196 [This change does not apply to 0.9.7.]
4198 *) Use the cached encoding of an X509_NAME structure rather than
4199 copying it. This is apparently the reason for the libsafe "errors"
4200 but the code is actually correct.
4203 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4204 Bleichenbacher's DSA attack.
4205 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4206 to be set and top=0 forces the highest bit to be set; top=-1 is new
4207 and leaves the highest bit random.
4208 [Ulf Moeller, Bodo Moeller]
4210 *) In the NCONF_...-based implementations for CONF_... queries
4211 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4212 a temporary CONF structure with the data component set to NULL
4213 (which gives segmentation faults in lh_retrieve).
4214 Instead, use NULL for the CONF pointer in CONF_get_string and
4215 CONF_get_number (which may use environment variables) and directly
4216 return NULL from CONF_get_section.
4219 *) Fix potential buffer overrun for EBCDIC.
4222 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4223 keyUsage if basicConstraints absent for a CA.
4226 *) Make SMIME_write_PKCS7() write mail header values with a format that
4227 is more generally accepted (no spaces before the semicolon), since
4228 some programs can't parse those values properly otherwise. Also make
4229 sure BIO's that break lines after each write do not create invalid
4233 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4234 macros previously used would not encode an empty SEQUENCE OF
4235 and break the signature.
4237 [This change does not apply to 0.9.7.]
4239 *) Zero the premaster secret after deriving the master secret in
4243 *) Add some EVP_add_digest_alias registrations (as found in
4244 OpenSSL_add_all_digests()) to SSL_library_init()
4245 aka OpenSSL_add_ssl_algorithms(). This provides improved
4246 compatibility with peers using X.509 certificates
4247 with unconventional AlgorithmIdentifier OIDs.
4250 *) Fix for Irix with NO_ASM.
4251 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4253 *) ./config script fixes.
4254 [Ulf Moeller, Richard Levitte]
4256 *) Fix 'openssl passwd -1'.
4259 *) Change PKCS12_key_gen_asc() so it can cope with non null
4260 terminated strings whose length is passed in the passlen
4261 parameter, for example from PEM callbacks. This was done
4262 by adding an extra length parameter to asc2uni().
4263 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4265 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4266 call failed, free the DSA structure.
4269 *) Fix to uni2asc() to cope with zero length Unicode strings.
4270 These are present in some PKCS#12 files.
4273 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4274 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4275 when writing a 32767 byte record.
4276 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4278 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4279 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4281 (RSA objects have a reference count access to which is protected
4282 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4283 so they are meant to be shared between threads.)
4284 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4285 "Reddie, Steven" <Steven.Reddie@ca.com>]
4287 *) Fix a deadlock in CRYPTO_mem_leaks().
4290 *) Use better test patterns in bntest.
4293 *) rand_win.c fix for Borland C.
4296 *) BN_rshift bugfix for n == 0.
4299 *) Add a 'bctest' script that checks for some known 'bc' bugs
4300 so that 'make test' does not abort just because 'bc' is broken.
4303 *) Store verify_result within SSL_SESSION also for client side to
4304 avoid potential security hole. (Re-used sessions on the client side
4305 always resulted in verify_result==X509_V_OK, not using the original
4306 result of the server certificate verification.)
4309 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4310 SSL3_RT_APPLICATION_DATA, return 0.
4311 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4315 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4316 releases, have been re-implemented by renaming the previous
4317 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4318 and ssl3_read_internal, respectively, and adding 'peek' parameters
4319 to them. The new ssl[23]_{read,peek} functions are calls to
4320 ssl[23]_read_internal with the 'peek' flag set appropriately.
4321 A 'peek' parameter has also been added to ssl3_read_bytes, which
4322 does the actual work for ssl3_read_internal.
4325 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4326 the method-specific "init()" handler. Also clean up ex_data after
4327 calling the method-specific "finish()" handler. Previously, this was
4328 happening the other way round.
4331 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4332 The previous value, 12, was not always sufficient for BN_mod_exp().
4335 *) Make sure that shared libraries get the internal name engine with
4336 the full version number and not just 0. This should mark the
4337 shared libraries as not backward compatible. Of course, this should
4338 be changed again when we can guarantee backward binary compatibility.
4341 *) Fix typo in get_cert_by_subject() in by_dir.c
4342 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4344 *) Rework the system to generate shared libraries:
4346 - Make note of the expected extension for the shared libraries and
4347 if there is a need for symbolic links from for example libcrypto.so.0
4348 to libcrypto.so.0.9.7. There is extended info in Configure for
4351 - Make as few rebuilds of the shared libraries as possible.
4353 - Still avoid linking the OpenSSL programs with the shared libraries.
4355 - When installing, install the shared libraries separately from the
4359 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4361 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4362 and not in SSL_clear because the latter is also used by the
4363 accept/connect functions; previously, the settings made by
4364 SSL_set_read_ahead would be lost during the handshake.
4365 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4367 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4368 Previously, it would create entries for disableed algorithms no
4372 *) Added several new manual pages for SSL_* function.
4375 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4377 *) In ssl23_get_client_hello, generate an error message when faced
4378 with an initial SSL 3.0/TLS record that is too small to contain the
4379 first two bytes of the ClientHello message, i.e. client_version.
4380 (Note that this is a pathologic case that probably has never happened
4381 in real life.) The previous approach was to use the version number
4382 from the record header as a substitute; but our protocol choice
4383 should not depend on that one because it is not authenticated
4384 by the Finished messages.
4387 *) More robust randomness gathering functions for Windows.
4388 [Jeffrey Altman <jaltman@columbia.edu>]
4390 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4391 not set then we don't setup the error code for issuer check errors
4392 to avoid possibly overwriting other errors which the callback does
4393 handle. If an application does set the flag then we assume it knows
4394 what it is doing and can handle the new informational codes
4398 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4399 a general "ANY" type, as such it should be able to decode anything
4400 including tagged types. However it didn't check the class so it would
4401 wrongly interpret tagged types in the same way as their universal
4402 counterpart and unknown types were just rejected. Changed so that the
4403 tagged and unknown types are handled in the same way as a SEQUENCE:
4404 that is the encoding is stored intact. There is also a new type
4405 "V_ASN1_OTHER" which is used when the class is not universal, in this
4406 case we have no idea what the actual type is so we just lump them all
4410 *) On VMS, stdout may very well lead to a file that is written to
4411 in a record-oriented fashion. That means that every write() will
4412 write a separate record, which will be read separately by the
4413 programs trying to read from it. This can be very confusing.
4415 The solution is to put a BIO filter in the way that will buffer
4416 text until a linefeed is reached, and then write everything a
4417 line at a time, so every record written will be an actual line,
4418 not chunks of lines and not (usually doesn't happen, but I've
4419 seen it once) several lines in one record. BIO_f_linebuffer() is
4422 Currently, it's a VMS-only method, because that's where it has
4423 been tested well enough.
4426 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4427 it can return incorrect results.
4428 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4429 but it was in 0.9.6-beta[12].)
4432 *) Disable the check for content being present when verifying detached
4433 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4434 include zero length content when signing messages.
4437 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4438 BIO_ctrl (for BIO pairs).
4441 *) Add DSO method for VMS.
4444 *) Bug fix: Montgomery multiplication could produce results with the
4448 *) Add RPM specification openssl.spec and modify it to build three
4449 packages. The default package contains applications, application
4450 documentation and run-time libraries. The devel package contains
4451 include files, static libraries and function documentation. The
4452 doc package contains the contents of the doc directory. The original
4453 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4456 *) Add a large number of documentation files for many SSL routines.
4457 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4459 *) Add a configuration entry for Sony News 4.
4460 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4462 *) Don't set the two most significant bits to one when generating a
4463 random number < q in the DSA library.
4466 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4467 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4468 the underlying transport is blocking) if a handshake took place.
4469 (The default behaviour is needed by applications such as s_client
4470 and s_server that use select() to determine when to use SSL_read;
4471 but for applications that know in advance when to expect data, it
4472 just makes things more complicated.)
4475 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4479 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4480 work better on such systems.
4481 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4483 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4484 Update PKCS12_parse() so it copies the friendlyName and the
4485 keyid to the certificates aux info.
4488 *) Fix bug in PKCS7_verify() which caused an infinite loop
4489 if there was more than one signature.
4490 [Sven Uszpelkat <su@celocom.de>]
4492 *) Major change in util/mkdef.pl to include extra information
4493 about each symbol, as well as presentig variables as well
4494 as functions. This change means that there's n more need
4495 to rebuild the .num files when some algorithms are excluded.
4498 *) Allow the verify time to be set by an application,
4499 rather than always using the current time.
4502 *) Phase 2 verify code reorganisation. The certificate
4503 verify code now looks up an issuer certificate by a
4504 number of criteria: subject name, authority key id
4505 and key usage. It also verifies self signed certificates
4506 by the same criteria. The main comparison function is
4507 X509_check_issued() which performs these checks.
4509 Lot of changes were necessary in order to support this
4510 without completely rewriting the lookup code.
4512 Authority and subject key identifier are now cached.
4514 The LHASH 'certs' is X509_STORE has now been replaced
4515 by a STACK_OF(X509_OBJECT). This is mainly because an
4516 LHASH can't store or retrieve multiple objects with
4517 the same hash value.
4519 As a result various functions (which were all internal
4520 use only) have changed to handle the new X509_STORE
4521 structure. This will break anything that messed round
4522 with X509_STORE internally.
4524 The functions X509_STORE_add_cert() now checks for an
4525 exact match, rather than just subject name.
4527 The X509_STORE API doesn't directly support the retrieval
4528 of multiple certificates matching a given criteria, however
4529 this can be worked round by performing a lookup first
4530 (which will fill the cache with candidate certificates)
4531 and then examining the cache for matches. This is probably
4532 the best we can do without throwing out X509_LOOKUP
4533 entirely (maybe later...).
4535 The X509_VERIFY_CTX structure has been enhanced considerably.
4537 All certificate lookup operations now go via a get_issuer()
4538 callback. Although this currently uses an X509_STORE it
4539 can be replaced by custom lookups. This is a simple way
4540 to bypass the X509_STORE hackery necessary to make this
4541 work and makes it possible to use more efficient techniques
4542 in future. A very simple version which uses a simple
4543 STACK for its trusted certificate store is also provided
4544 using X509_STORE_CTX_trusted_stack().
4546 The verify_cb() and verify() callbacks now have equivalents
4547 in the X509_STORE_CTX structure.
4549 X509_STORE_CTX also has a 'flags' field which can be used
4550 to customise the verify behaviour.
4553 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4554 excludes S/MIME capabilities.
4557 *) When a certificate request is read in keep a copy of the
4558 original encoding of the signed data and use it when outputing
4559 again. Signatures then use the original encoding rather than
4560 a decoded, encoded version which may cause problems if the
4561 request is improperly encoded.
4564 *) For consistency with other BIO_puts implementations, call
4565 buffer_write(b, ...) directly in buffer_puts instead of calling
4568 In BIO_puts, increment b->num_write as in BIO_write.
4569 [Peter.Sylvester@EdelWeb.fr]
4571 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4572 BN_zero, we may not return a BIGNUM with an array consisting of
4576 *) Avoid calling abort() from within the library when problems are
4577 detected, except if preprocessor symbols have been defined
4578 (such as REF_CHECK, BN_DEBUG etc.).
4581 *) New openssl application 'rsautl'. This utility can be
4582 used for low level RSA operations. DER public key
4583 BIO/fp routines also added.
4586 *) New Configure entry and patches for compiling on QNX 4.
4587 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4589 *) A demo state-machine implementation was sponsored by
4590 Nuron (http://www.nuron.com/) and is now available in
4591 demos/state_machine.
4594 *) New options added to the 'dgst' utility for signature
4595 generation and verification.
4598 *) Unrecognized PKCS#7 content types are now handled via a
4599 catch all ASN1_TYPE structure. This allows unsupported
4600 types to be stored as a "blob" and an application can
4601 encode and decode it manually.
4604 *) Fix various signed/unsigned issues to make a_strex.c
4606 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4608 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4609 length if passed a buffer. ASN1_INTEGER_to_BN failed
4610 if passed a NULL BN and its argument was negative.
4611 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4613 *) Modification to PKCS#7 encoding routines to output definite
4614 length encoding. Since currently the whole structures are in
4615 memory there's not real point in using indefinite length
4616 constructed encoding. However if OpenSSL is compiled with
4617 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4620 *) Added BIO_vprintf() and BIO_vsnprintf().
4623 *) Added more prefixes to parse for in the the strings written
4624 through a logging bio, to cover all the levels that are available
4625 through syslog. The prefixes are now:
4627 PANIC, EMERG, EMR => LOG_EMERG
4628 ALERT, ALR => LOG_ALERT
4629 CRIT, CRI => LOG_CRIT
4630 ERROR, ERR => LOG_ERR
4631 WARNING, WARN, WAR => LOG_WARNING
4632 NOTICE, NOTE, NOT => LOG_NOTICE
4633 INFO, INF => LOG_INFO
4634 DEBUG, DBG => LOG_DEBUG
4636 and as before, if none of those prefixes are present at the
4637 beginning of the string, LOG_ERR is chosen.
4639 On Win32, the LOG_* levels are mapped according to this:
4641 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4642 LOG_WARNING => EVENTLOG_WARNING_TYPE
4643 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4647 *) Made it possible to reconfigure with just the configuration
4648 argument "reconf" or "reconfigure". The command line arguments
4649 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4650 and are retrieved from there when reconfiguring.
4654 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4656 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4659 *) The obj_dat.pl script was messing up the sorting of object
4660 names. The reason was that it compared the quoted version
4661 of strings as a result "OCSP" > "OCSP Signing" because
4662 " > SPACE. Changed script to store unquoted versions of
4663 names and add quotes on output. It was also omitting some
4664 names from the lookup table if they were given a default
4665 value (that is if SN is missing it is given the same
4666 value as LN and vice versa), these are now added on the
4667 grounds that if an object has a name we should be able to
4668 look it up. Finally added warning output when duplicate
4669 short or long names are found.
4672 *) Changes needed for Tandem NSK.
4673 [Scott Uroff <scott@xypro.com>]
4675 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4676 RSA_padding_check_SSLv23(), special padding was never detected
4677 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4678 version rollback attacks was not effective.
4680 In s23_clnt.c, don't use special rollback-attack detection padding
4681 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4682 client; similarly, in s23_srvr.c, don't do the rollback check if
4683 SSL 2.0 is the only protocol enabled in the server.
4686 *) Make it possible to get hexdumps of unprintable data with 'openssl
4687 asn1parse'. By implication, the functions ASN1_parse_dump() and
4688 BIO_dump_indent() are added.
4691 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4692 these print out strings and name structures based on various
4693 flags including RFC2253 support and proper handling of
4694 multibyte characters. Added options to the 'x509' utility
4695 to allow the various flags to be set.
4698 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4699 Also change the functions X509_cmp_current_time() and
4700 X509_gmtime_adj() work with an ASN1_TIME structure,
4701 this will enable certificates using GeneralizedTime in validity
4702 dates to be checked.
4705 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4706 negative public key encodings) on by default,
4707 NO_NEG_PUBKEY_BUG can be set to disable it.
4710 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4711 content octets. An i2c_ASN1_OBJECT is unnecessary because
4712 the encoding can be trivially obtained from the structure.
4715 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4716 not read locks (CRYPTO_r_[un]lock).
4719 *) A first attempt at creating official support for shared
4720 libraries through configuration. I've kept it so the
4721 default is static libraries only, and the OpenSSL programs
4722 are always statically linked for now, but there are
4723 preparations for dynamic linking in place.
4724 This has been tested on Linux and Tru64.
4727 *) Randomness polling function for Win9x, as described in:
4728 Peter Gutmann, Software Generation of Practically Strong
4732 *) Fix so PRNG is seeded in req if using an already existing
4736 *) New options to smime application. -inform and -outform
4737 allow alternative formats for the S/MIME message including
4738 PEM and DER. The -content option allows the content to be
4739 specified separately. This should allow things like Netscape
4740 form signing output easier to verify.
4743 *) Fix the ASN1 encoding of tags using the 'long form'.
4746 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4747 STRING types. These convert content octets to and from the
4748 underlying type. The actual tag and length octets are
4749 already assumed to have been read in and checked. These
4750 are needed because all other string types have virtually
4751 identical handling apart from the tag. By having versions
4752 of the ASN1 functions that just operate on content octets
4753 IMPLICIT tagging can be handled properly. It also allows
4754 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4755 and ASN1_INTEGER are identical apart from the tag.
4758 *) Change the handling of OID objects as follows:
4760 - New object identifiers are inserted in objects.txt, following
4761 the syntax given in objects.README.
4762 - objects.pl is used to process obj_mac.num and create a new
4764 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4767 This is currently kind of a hack, and the perl code in objects.pl
4768 isn't very elegant, but it works as I intended. The simplest way
4769 to check that it worked correctly is to look in obj_dat.h and
4770 check the array nid_objs and make sure the objects haven't moved
4771 around (this is important!). Additions are OK, as well as
4772 consistent name changes.
4775 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4778 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4779 The given file adds to whatever has already been seeded into the
4780 random pool through the RANDFILE configuration file option or
4781 environment variable, or the default random state file.
4784 *) mkstack.pl now sorts each macro group into lexical order.
4785 Previously the output order depended on the order the files
4786 appeared in the directory, resulting in needless rewriting
4790 *) Patches to make OpenSSL compile under Win32 again. Mostly
4791 work arounds for the VC++ problem that it treats func() as
4792 func(void). Also stripped out the parts of mkdef.pl that
4793 added extra typesafe functions: these no longer exist.
4796 *) Reorganisation of the stack code. The macros are now all
4797 collected in safestack.h . Each macro is defined in terms of
4798 a "stack macro" of the form SKM_<name>(type, a, b). The
4799 DEBUG_SAFESTACK is now handled in terms of function casts,
4800 this has the advantage of retaining type safety without the
4801 use of additional functions. If DEBUG_SAFESTACK is not defined
4802 then the non typesafe macros are used instead. Also modified the
4803 mkstack.pl script to handle the new form. Needs testing to see
4804 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4805 the default if no major problems. Similar behaviour for ASN1_SET_OF
4806 and PKCS12_STACK_OF.
4809 *) When some versions of IIS use the 'NET' form of private key the
4810 key derivation algorithm is different. Normally MD5(password) is
4811 used as a 128 bit RC4 key. In the modified case
4812 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4813 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4814 as the old Netscape_RSA functions except they have an additional
4815 'sgckey' parameter which uses the modified algorithm. Also added
4816 an -sgckey command line option to the rsa utility. Thanks to
4817 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4818 algorithm to openssl-dev.
4821 *) The evp_local.h macros were using 'c.##kname' which resulted in
4822 invalid expansion on some systems (SCO 5.0.5 for example).
4823 Corrected to 'c.kname'.
4824 [Phillip Porch <root@theporch.com>]
4826 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4827 a STACK of email addresses from a certificate or request, these look
4828 in the subject name and the subject alternative name extensions and
4829 omit any duplicate addresses.
4832 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4833 This makes DSA verification about 2 % faster.
4836 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4837 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4838 plus overhead for 1024 bit moduli).
4839 This makes exponentiations about 0.5 % faster for 1024 bit
4840 exponents (as measured by "openssl speed rsa2048").
4843 *) Rename memory handling macros to avoid conflicts with other
4845 Malloc => OPENSSL_malloc
4846 Malloc_locked => OPENSSL_malloc_locked
4847 Realloc => OPENSSL_realloc
4848 Free => OPENSSL_free
4851 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4852 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4855 *) CygWin32 support.
4856 [John Jarvie <jjarvie@newsguy.com>]
4858 *) The type-safe stack code has been rejigged. It is now only compiled
4859 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4860 by default all type-specific stack functions are "#define"d back to
4861 standard stack functions. This results in more streamlined output
4862 but retains the type-safety checking possibilities of the original
4866 *) The STACK code has been cleaned up, and certain type declarations
4867 that didn't make a lot of sense have been brought in line. This has
4868 also involved a cleanup of sorts in safestack.h to more correctly
4869 map type-safe stack functions onto their plain stack counterparts.
4870 This work has also resulted in a variety of "const"ifications of
4871 lots of the code, especially "_cmp" operations which should normally
4872 be prototyped with "const" parameters anyway.
4875 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4876 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4877 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4878 where all of 'md' is used each time the PRNG is used, but 'state'
4879 is used only indexed by a cyclic counter. As entropy may not be
4880 well distributed from the beginning, 'md' is important as a
4881 chaining variable. However, the output function chains only half
4882 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4883 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4884 in all of 'state' being rewritten, with the new values depending
4885 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4888 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4889 the handshake is continued after ssl_verify_cert_chain();
4890 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4891 can lead to 'unexplainable' connection aborts later.
4892 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4894 *) Major EVP API cipher revision.
4895 Add hooks for extra EVP features. This allows various cipher
4896 parameters to be set in the EVP interface. Support added for variable
4897 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4898 setting of RC2 and RC5 parameters.
4900 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4903 Remove lots of duplicated code from the EVP library. For example *every*
4904 cipher init() function handles the 'iv' in the same way according to the
4905 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4906 for CFB and OFB modes they zero ctx->num.
4908 New functionality allows removal of S/MIME code RC2 hack.
4910 Most of the routines have the same form and so can be declared in terms
4913 By shifting this to the top level EVP_CipherInit() it can be removed from
4914 all individual ciphers. If the cipher wants to handle IVs or keys
4915 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4918 Change lots of functions like EVP_EncryptUpdate() to now return a
4919 value: although software versions of the algorithms cannot fail
4920 any installed hardware versions can.
4923 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4924 this option is set, tolerate broken clients that send the negotiated
4925 protocol version number instead of the requested protocol version
4929 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4930 i.e. non-zero for export ciphersuites, zero otherwise.
4931 Previous versions had this flag inverted, inconsistent with
4932 rsa_tmp_cb (..._TMP_RSA_CB).
4933 [Bodo Moeller; problem reported by Amit Chopra]
4935 *) Add missing DSA library text string. Work around for some IIS
4936 key files with invalid SEQUENCE encoding.
4939 *) Add a document (doc/standards.txt) that list all kinds of standards
4940 and so on that are implemented in OpenSSL.
4943 *) Enhance c_rehash script. Old version would mishandle certificates
4944 with the same subject name hash and wouldn't handle CRLs at all.
4945 Added -fingerprint option to crl utility, to support new c_rehash
4949 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4952 *) Fix for SSL server purpose checking. Server checking was
4953 rejecting certificates which had extended key usage present
4954 but no ssl client purpose.
4955 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4957 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4958 is a little unclear about how a blank password is handled.
4959 Since the password in encoded as a BMPString with terminating
4960 double NULL a zero length password would end up as just the
4961 double NULL. However no password at all is different and is
4962 handled differently in the PKCS#12 key generation code. NS
4963 treats a blank password as zero length. MSIE treats it as no
4964 password on export: but it will try both on import. We now do
4965 the same: PKCS12_parse() tries zero length and no password if
4966 the password is set to "" or NULL (NULL is now a valid password:
4967 it wasn't before) as does the pkcs12 application.
4970 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4971 perror when PEM_read_bio_X509_REQ fails, the error message must
4972 be obtained from the error queue.
4975 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4976 it in ERR_remove_state if appropriate, and change ERR_get_state
4977 accordingly to avoid race conditions (this is necessary because
4978 thread_hash is no longer constant once set).
4981 *) Bugfix for linux-elf makefile.one.
4984 *) RSA_get_default_method() will now cause a default
4985 RSA_METHOD to be chosen if one doesn't exist already.
4986 Previously this was only set during a call to RSA_new()
4987 or RSA_new_method(NULL) meaning it was possible for
4988 RSA_get_default_method() to return NULL.
4991 *) Added native name translation to the existing DSO code
4992 that will convert (if the flag to do so is set) filenames
4993 that are sufficiently small and have no path information
4994 into a canonical native form. Eg. "blah" converted to
4995 "libblah.so" or "blah.dll" etc.
4998 *) New function ERR_error_string_n(e, buf, len) which is like
4999 ERR_error_string(e, buf), but writes at most 'len' bytes
5000 including the 0 terminator. For ERR_error_string_n, 'buf'
5002 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5004 *) CONF library reworked to become more general. A new CONF
5005 configuration file reader "class" is implemented as well as a
5006 new functions (NCONF_*, for "New CONF") to handle it. The now
5007 old CONF_* functions are still there, but are reimplemented to
5008 work in terms of the new functions. Also, a set of functions
5009 to handle the internal storage of the configuration data is
5010 provided to make it easier to write new configuration file
5011 reader "classes" (I can definitely see something reading a
5012 configuration file in XML format, for example), called _CONF_*,
5013 or "the configuration storage API"...
5015 The new configuration file reading functions are:
5017 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5018 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5020 NCONF_default, NCONF_WIN32
5022 NCONF_dump_fp, NCONF_dump_bio
5024 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5025 NCONF_new creates a new CONF object. This works in the same way
5026 as other interfaces in OpenSSL, like the BIO interface.
5027 NCONF_dump_* dump the internal storage of the configuration file,
5028 which is useful for debugging. All other functions take the same
5029 arguments as the old CONF_* functions wth the exception of the
5030 first that must be a `CONF *' instead of a `LHASH *'.
5032 To make it easer to use the new classes with the old CONF_* functions,
5033 the function CONF_set_default_method is provided.
5036 *) Add '-tls1' option to 'openssl ciphers', which was already
5037 mentioned in the documentation but had not been implemented.
5038 (This option is not yet really useful because even the additional
5039 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5042 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5043 OpenSSL-based applications) load shared libraries and bind to
5044 them in a portable way.
5045 [Geoff Thorpe, with contributions from Richard Levitte]
5047 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5049 *) Make sure _lrotl and _lrotr are only used with MSVC.
5051 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5052 (the default implementation of RAND_status).
5054 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5055 to '-clrext' (= clear extensions), as intended and documented.
5056 [Bodo Moeller; inconsistency pointed out by Michael Attili
5059 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5060 was larger than the MD block size.
5061 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5063 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5064 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5065 using the passed key: if the passed key was a private key the result
5066 of X509_print(), for example, would be to print out all the private key
5070 *) des_quad_cksum() byte order bug fix.
5071 [Ulf Möller, using the problem description in krb4-0.9.7, where
5072 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5074 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5076 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5078 *) For easily testing in shell scripts whether some command
5079 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5080 returns with exit code 0 iff no command of the given name is available.
5081 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5082 the output goes to stdout and nothing is printed to stderr.
5083 Additional arguments are always ignored.
5085 Since for each cipher there is a command of the same name,
5086 the 'no-cipher' compilation switches can be tested this way.
5088 ('openssl no-XXX' is not able to detect pseudo-commands such
5089 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5092 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5095 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5096 is set; it will be thrown away anyway because each handshake creates
5098 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5099 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5100 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5101 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5104 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5105 'Q' and 'R' lose their special meanings (quit/renegotiate).
5106 This is part of what -quiet does; unlike -quiet, -ign_eof
5107 does not suppress any output.
5110 *) Add compatibility options to the purpose and trust code. The
5111 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5112 accepts a certificate or CA, this was the previous behaviour,
5113 with all the associated security issues.
5115 X509_TRUST_COMPAT is the old trust behaviour: only and
5116 automatically trust self signed roots in certificate store. A
5117 new trust setting X509_TRUST_DEFAULT is used to specify that
5118 a purpose has no associated trust setting and it should instead
5119 use the value in the default purpose.
5122 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5123 and fix a memory leak.
5126 *) In util/mkerr.pl (which implements 'make errors'), preserve
5127 reason strings from the previous version of the .c file, as
5128 the default to have only downcase letters (and digits) in
5129 automatically generated reasons codes is not always appropriate.
5132 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5133 using strerror. Previously, ERR_reason_error_string() returned
5134 library names as reason strings for SYSerr; but SYSerr is a special
5135 case where small numbers are errno values, not library numbers.
5138 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5139 converts DSA parameters into DH parameters. (When creating parameters,
5140 DSA_generate_parameters is used.)
5143 *) Include 'length' (recommended exponent length) in C code generated
5144 by 'openssl dhparam -C'.
5147 *) The second argument to set_label in perlasm was already being used
5148 so couldn't be used as a "file scope" flag. Moved to third argument
5152 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5153 instead of RAND_bytes for encryption IVs and salts.
5156 *) Include RAND_status() into RAND_METHOD instead of implementing
5157 it only for md_rand.c Otherwise replacing the PRNG by calling
5158 RAND_set_rand_method would be impossible.
5161 *) Don't let DSA_generate_key() enter an infinite loop if the random
5162 number generation fails.
5165 *) New 'rand' application for creating pseudo-random output.
5168 *) Added configuration support for Linux/IA64
5169 [Rolf Haberrecker <rolf@suse.de>]
5171 *) Assembler module support for Mingw32.
5174 *) Shared library support for HPUX (in shlib/).
5175 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5177 *) Shared library support for Solaris gcc.
5178 [Lutz Behnke <behnke@trustcenter.de>]
5180 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5182 *) PKCS7_encrypt() was adding text MIME headers twice because they
5183 were added manually and by SMIME_crlf_copy().
5186 *) In bntest.c don't call BN_rand with zero bits argument.
5187 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5189 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5190 case was implemented. This caused BN_div_recp() to fail occasionally.
5193 *) Add an optional second argument to the set_label() in the perl
5194 assembly language builder. If this argument exists and is set
5195 to 1 it signals that the assembler should use a symbol whose
5196 scope is the entire file, not just the current function. This
5197 is needed with MASM which uses the format label:: for this scope.
5198 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5200 *) Change the ASN1 types so they are typedefs by default. Before
5201 almost all types were #define'd to ASN1_STRING which was causing
5202 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5206 *) Change names of new functions to the new get1/get0 naming
5207 convention: After 'get1', the caller owns a reference count
5208 and has to call ..._free; 'get0' returns a pointer to some
5209 data structure without incrementing reference counters.
5210 (Some of the existing 'get' functions increment a reference
5211 counter, some don't.)
5212 Similarly, 'set1' and 'add1' functions increase reference
5213 counters or duplicate objects.
5216 *) Allow for the possibility of temp RSA key generation failure:
5217 the code used to assume it always worked and crashed on failure.
5220 *) Fix potential buffer overrun problem in BIO_printf().
5221 [Ulf Möller, using public domain code by Patrick Powell; problem
5222 pointed out by David Sacerdote <das33@cornell.edu>]
5224 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5225 RAND_egd() and RAND_status(). In the command line application,
5226 the EGD socket can be specified like a seed file using RANDFILE
5230 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5231 Some CAs (e.g. Verisign) distribute certificates in this form.
5234 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5235 list to exclude them. This means that no special compilation option
5236 is needed to use anonymous DH: it just needs to be included in the
5240 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5241 EVP_MD_type. The old functionality is available in a new macro called
5242 EVP_MD_md(). Change code that uses it and update docs.
5245 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5246 where the 'void *' argument is replaced by a function pointer argument.
5247 Previously 'void *' was abused to point to functions, which works on
5248 many platforms, but is not correct. As these functions are usually
5249 called by macros defined in OpenSSL header files, most source code
5250 should work without changes.
5253 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5254 sections with information on -D... compiler switches used for
5255 compiling the library so that applications can see them. To enable
5256 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5257 must be defined. E.g.,
5258 #define OPENSSL_ALGORITHM_DEFINES
5259 #include <openssl/opensslconf.h>
5260 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5261 [Richard Levitte, Ulf and Bodo Möller]
5263 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5267 *) Change the 'other' type in certificate aux info to a STACK_OF
5268 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5269 the required ASN1 format: arbitrary types determined by an OID.
5272 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5273 argument to 'req'. This is not because the function is newer or
5274 better than others it just uses the work 'NEW' in the certificate
5275 request header lines. Some software needs this.
5278 *) Reorganise password command line arguments: now passwords can be
5279 obtained from various sources. Delete the PEM_cb function and make
5280 it the default behaviour: i.e. if the callback is NULL and the
5281 usrdata argument is not NULL interpret it as a null terminated pass
5282 phrase. If usrdata and the callback are NULL then the pass phrase
5283 is prompted for as usual.
5286 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5287 the support is automatically enabled. The resulting binaries will
5288 autodetect the card and use it if present.
5289 [Ben Laurie and Compaq Inc.]
5291 *) Work around for Netscape hang bug. This sends certificate request
5292 and server done in one record. Since this is perfectly legal in the
5293 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5294 the bugs/SSLv3 entry for more info.
5297 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5300 *) Add -rand argument to smime and pkcs12 applications and read/write
5304 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5307 *) Add command line password options to the remaining applications.
5310 *) Bug fix for BN_div_recp() for numerators with an even number of
5314 *) More tests in bntest.c, and changed test_bn output.
5317 *) ./config recognizes MacOS X now.
5320 *) Bug fix for BN_div() when the first words of num and divsor are
5321 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5324 *) Add support for various broken PKCS#8 formats, and command line
5325 options to produce them.
5328 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5329 get temporary BIGNUMs from a BN_CTX.
5332 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5336 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5337 include a #define from the old name to the new. The original intent
5338 was that statically linked binaries could for example just call
5339 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5340 link with digests. This never worked becayse SSLeay_add_all_digests()
5341 and SSLeay_add_all_ciphers() were in the same source file so calling
5342 one would link with the other. They are now in separate source files.
5345 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5348 *) Use a less unusual form of the Miller-Rabin primality test (it used
5349 a binary algorithm for exponentiation integrated into the Miller-Rabin
5350 loop, our standard modexp algorithms are faster).
5353 *) Support for the EBCDIC character set completed.
5354 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5356 *) Source code cleanups: use const where appropriate, eliminate casts,
5357 use void * instead of char * in lhash.
5360 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5361 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5362 this the server could overwrite ephemeral keys that the client
5366 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5367 using 50 iterations of the Rabin-Miller test.
5369 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5370 iterations of the Rabin-Miller test as required by the appendix
5371 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5372 As BN_is_prime_fasttest includes trial division, DSA parameter
5373 generation becomes much faster.
5375 This implies a change for the callback functions in DSA_is_prime
5376 and DSA_generate_parameters: The callback function is called once
5377 for each positive witness in the Rabin-Miller test, not just
5378 occasionally in the inner loop; and the parameters to the
5379 callback function now provide an iteration count for the outer
5380 loop rather than for the current invocation of the inner loop.
5381 DSA_generate_parameters additionally can call the callback
5382 function with an 'iteration count' of -1, meaning that a
5383 candidate has passed the trial division test (when q is generated
5384 from an application-provided seed, trial division is skipped).
5387 *) New function BN_is_prime_fasttest that optionally does trial
5388 division before starting the Rabin-Miller test and has
5389 an additional BN_CTX * argument (whereas BN_is_prime always
5390 has to allocate at least one BN_CTX).
5391 'callback(1, -1, cb_arg)' is called when a number has passed the
5392 trial division stage.
5395 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5399 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5402 *) New function BN_pseudo_rand().
5405 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5406 bignum version of BN_from_montgomery() with the working code from
5407 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5411 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5412 made it impossible to use the same SSL_SESSION data structure in
5413 SSL2 clients in multiple threads.
5416 *) The return value of RAND_load_file() no longer counts bytes obtained
5417 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5418 to seed the PRNG (previously an explicit byte count was required).
5419 [Ulf Möller, Bodo Möller]
5421 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5422 used (char *) instead of (void *) and had casts all over the place.
5425 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5428 *) Retain source code compatibility for BN_prime_checks macro:
5429 BN_is_prime(..., BN_prime_checks, ...) now uses
5430 BN_prime_checks_for_size to determine the appropriate number of
5431 Rabin-Miller iterations.
5434 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5435 DH_CHECK_P_NOT_SAFE_PRIME.
5436 (Check if this is true? OpenPGP calls them "strong".)
5439 *) Merge the functionality of "dh" and "gendh" programs into a new program
5440 "dhparam". The old programs are retained for now but will handle DH keys
5441 (instead of parameters) in future.
5444 *) Make the ciphers, s_server and s_client programs check the return values
5445 when a new cipher list is set.
5448 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5449 ciphers. Before when the 56bit ciphers were enabled the sorting was
5452 The syntax for the cipher sorting has been extended to support sorting by
5453 cipher-strength (using the strength_bits hard coded in the tables).
5454 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5456 Fix a bug in the cipher-command parser: when supplying a cipher command
5457 string with an "undefined" symbol (neither command nor alphanumeric
5458 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5459 an error is flagged.
5461 Due to the strength-sorting extension, the code of the
5462 ssl_create_cipher_list() function was completely rearranged. I hope that
5463 the readability was also increased :-)
5464 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5466 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5467 for the first serial number and places 2 in the serial number file. This
5468 avoids problems when the root CA is created with serial number zero and
5469 the first user certificate has the same issuer name and serial number
5473 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5474 the new code. Add documentation for this stuff.
5477 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5478 X509_*() to X509at_*() on the grounds that they don't handle X509
5479 structures and behave in an analagous way to the X509v3 functions:
5480 they shouldn't be called directly but wrapper functions should be used
5483 So we also now have some wrapper functions that call the X509at functions
5484 when passed certificate requests. (TO DO: similar things can be done with
5485 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5486 things. Some of these need some d2i or i2d and print functionality
5487 because they handle more complex structures.)
5490 *) Add missing #ifndefs that caused missing symbols when building libssl
5491 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5492 NO_RSA in ssl/s2*.c.
5493 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5495 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5496 has a return value which indicates the quality of the random data
5497 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5498 error queue. New function RAND_pseudo_bytes() generates output that is
5499 guaranteed to be unique but not unpredictable. RAND_add is like
5500 RAND_seed, but takes an extra argument for an entropy estimate
5501 (RAND_seed always assumes full entropy).
5504 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5505 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5506 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5507 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5508 false-positive rate of at most 2^-80 for random input.
5511 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5514 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5515 in the 0.9.5 release), this returns the chain
5516 from an X509_CTX structure with a dup of the stack and all
5517 the X509 reference counts upped: so the stack will exist
5518 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5521 Also make SSL_SESSION_print() print out the verify return
5525 *) Add manpage for the pkcs12 command. Also change the default
5526 behaviour so MAC iteration counts are used unless the new
5527 -nomaciter option is used. This improves file security and
5528 only older versions of MSIE (4.0 for example) need it.
5531 *) Honor the no-xxx Configure options when creating .DEF files.
5534 *) Add PKCS#10 attributes to field table: challengePassword,
5535 unstructuredName and unstructuredAddress. These are taken from
5536 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5537 international characters are used.
5539 More changes to X509_ATTRIBUTE code: allow the setting of types
5540 based on strings. Remove the 'loc' parameter when adding
5541 attributes because these will be a SET OF encoding which is sorted
5545 *) Initial changes to the 'req' utility to allow request generation
5546 automation. This will allow an application to just generate a template
5547 file containing all the field values and have req construct the
5550 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5551 used all over the place including certificate requests and PKCS#7
5552 structures. They are currently handled manually where necessary with
5553 some primitive wrappers for PKCS#7. The new functions behave in a
5554 manner analogous to the X509 extension functions: they allow
5555 attributes to be looked up by NID and added.
5557 Later something similar to the X509V3 code would be desirable to
5558 automatically handle the encoding, decoding and printing of the
5559 more complex types. The string types like challengePassword can
5560 be handled by the string table functions.
5562 Also modified the multi byte string table handling. Now there is
5563 a 'global mask' which masks out certain types. The table itself
5564 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5565 is useful when for example there is only one permissible type
5566 (as in countryName) and using the mask might result in no valid
5570 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5571 SSL_get_peer_finished to allow applications to obtain the latest
5572 Finished messages sent to the peer or expected from the peer,
5573 respectively. (SSL_get_peer_finished is usually the Finished message
5574 actually received from the peer, otherwise the protocol will be aborted.)
5576 As the Finished message are message digests of the complete handshake
5577 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5578 be used for external authentication procedures when the authentication
5579 provided by SSL/TLS is not desired or is not enough.
5582 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5583 the host supports BWX extension and if Compaq C is present on the
5584 $PATH. Just exploiting of the BWX extension results in 20-30%
5585 performance kick for some algorithms, e.g. DES and RC4 to mention
5586 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5590 *) Add support for MS "fast SGC". This is arguably a violation of the
5591 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5592 weak crypto and after checking the certificate is SGC a second one
5593 with strong crypto. MS SGC stops the first handshake after receiving
5594 the server certificate message and sends a second client hello. Since
5595 a server will typically do all the time consuming operations before
5596 expecting any further messages from the client (server key exchange
5597 is the most expensive) there is little difference between the two.
5599 To get OpenSSL to support MS SGC we have to permit a second client
5600 hello message after we have sent server done. In addition we have to
5601 reset the MAC if we do get this second client hello.
5604 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5605 if a DER encoded private key is RSA or DSA traditional format. Changed
5606 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5607 format DER encoded private key. Newer code should use PKCS#8 format which
5608 has the key type encoded in the ASN1 structure. Added DER private key
5609 support to pkcs8 application.
5612 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5613 ciphersuites has been selected (as required by the SSL 3/TLS 1
5614 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5615 is set, we interpret this as a request to violate the specification
5616 (the worst that can happen is a handshake failure, and 'correct'
5617 behaviour would result in a handshake failure anyway).
5620 *) In SSL_CTX_add_session, take into account that there might be multiple
5621 SSL_SESSION structures with the same session ID (e.g. when two threads
5622 concurrently obtain them from an external cache).
5623 The internal cache can handle only one SSL_SESSION with a given ID,
5624 so if there's a conflict, we now throw out the old one to achieve
5628 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5629 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5630 some routines that use cipher OIDs: some ciphers do not have OIDs
5631 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5635 *) Simplify the trust setting structure and code. Now we just have
5636 two sequences of OIDs for trusted and rejected settings. These will
5637 typically have values the same as the extended key usage extension
5638 and any application specific purposes.
5640 The trust checking code now has a default behaviour: it will just
5641 check for an object with the same NID as the passed id. Functions can
5642 be provided to override either the default behaviour or the behaviour
5643 for a given id. SSL client, server and email already have functions
5644 in place for compatibility: they check the NID and also return "trusted"
5645 if the certificate is self signed.
5648 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5649 traditional format into an EVP_PKEY structure.
5652 *) Add a password callback function PEM_cb() which either prompts for
5653 a password if usr_data is NULL or otherwise assumes it is a null
5654 terminated password. Allow passwords to be passed on command line
5655 environment or config files in a few more utilities.
5658 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5659 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5660 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5661 Update documentation.
5664 *) Support for ASN1 "NULL" type. This could be handled before by using
5665 ASN1_TYPE but there wasn't any function that would try to read a NULL
5666 and produce an error if it couldn't. For compatibility we also have
5667 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5668 don't allocate anything because they don't need to.
5671 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5673 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5675 *) Rebuild of the memory allocation routines used by OpenSSL code and
5676 possibly others as well. The purpose is to make an interface that
5677 provide hooks so anyone can build a separate set of allocation and
5678 deallocation routines to be used by OpenSSL, for example memory
5679 pool implementations, or something else, which was previously hard
5680 since Malloc(), Realloc() and Free() were defined as macros having
5681 the values malloc, realloc and free, respectively (except for Win32
5682 compilations). The same is provided for memory debugging code.
5683 OpenSSL already comes with functionality to find memory leaks, but
5684 this gives people a chance to debug other memory problems.
5686 With these changes, a new set of functions and macros have appeared:
5688 CRYPTO_set_mem_debug_functions() [F]
5689 CRYPTO_get_mem_debug_functions() [F]
5690 CRYPTO_dbg_set_options() [F]
5691 CRYPTO_dbg_get_options() [F]
5692 CRYPTO_malloc_debug_init() [M]
5694 The memory debug functions are NULL by default, unless the library
5695 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5696 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5697 gives the standard debugging functions that come with OpenSSL) or
5698 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5699 provided by the library user) must be used. When the standard
5700 debugging functions are used, CRYPTO_dbg_set_options can be used to
5701 request additional information:
5702 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5703 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5705 Also, things like CRYPTO_set_mem_functions will always give the
5706 expected result (the new set of functions is used for allocation
5707 and deallocation) at all times, regardless of platform and compiler
5710 To finish it up, some functions that were never use in any other
5711 way than through macros have a new API and new semantic:
5714 CRYPTO_dbg_realloc()
5717 All macros of value have retained their old syntax.
5718 [Richard Levitte and Bodo Moeller]
5720 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5721 ordering of SMIMECapabilities wasn't in "strength order" and there
5722 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5726 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5727 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5728 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5730 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5731 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5732 functionality to handle multipart/signed properly) and a utility
5733 called 'smime' to call all this stuff. This is based on code I
5734 originally wrote for Celo who have kindly allowed it to be
5735 included in OpenSSL.
5738 *) Add variants des_set_key_checked and des_set_key_unchecked of
5739 des_set_key (aka des_key_sched). Global variable des_check_key
5740 decides which of these is called by des_set_key; this way
5741 des_check_key behaves as it always did, but applications and
5742 the library itself, which was buggy for des_check_key == 1,
5743 have a cleaner way to pick the version they need.
5746 *) New function PKCS12_newpass() which changes the password of a
5750 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5751 dynamic mix. In both cases the ids can be used as an index into the
5752 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5753 functions so they accept a list of the field values and the
5754 application doesn't need to directly manipulate the X509_TRUST
5758 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5762 *) Modify the way the V3 extension code looks up extensions. This now
5763 works in a similar way to the object code: we have some "standard"
5764 extensions in a static table which is searched with OBJ_bsearch()
5765 and the application can add dynamic ones if needed. The file
5766 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5767 updated whenever a new extension is added to the core code and kept
5768 in ext_nid order. There is a simple program 'tabtest.c' which checks
5769 this. New extensions are not added too often so this file can readily
5770 be maintained manually.
5772 There are two big advantages in doing things this way. The extensions
5773 can be looked up immediately and no longer need to be "added" using
5774 X509V3_add_standard_extensions(): this function now does nothing.
5775 [Side note: I get *lots* of email saying the extension code doesn't
5776 work because people forget to call this function]
5777 Also no dynamic allocation is done unless new extensions are added:
5778 so if we don't add custom extensions there is no need to call
5779 X509V3_EXT_cleanup().
5782 *) Modify enc utility's salting as follows: make salting the default. Add a
5783 magic header, so unsalted files fail gracefully instead of just decrypting
5784 to garbage. This is because not salting is a big security hole, so people
5785 should be discouraged from doing it.
5788 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5789 digest to be passed on the command line but it only used this
5790 parameter when signing a certificate. Modified so all relevant
5791 operations are affected by the digest parameter including the
5792 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5793 DSA key was used because it didn't fix the digest.
5796 *) Initial certificate chain verify code. Currently tests the untrusted
5797 certificates for consistency with the verify purpose (which is set
5798 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5800 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5801 this is because it will reject chains with invalid extensions whereas
5802 every previous version of OpenSSL and SSLeay made no checks at all.
5804 Trust code: checks the root CA for the relevant trust settings. Trust
5805 settings have an initial value consistent with the verify purpose: e.g.
5806 if the verify purpose is for SSL client use it expects the CA to be
5807 trusted for SSL client use. However the default value can be changed to
5808 permit custom trust settings: one example of this would be to only trust
5809 certificates from a specific "secure" set of CAs.
5811 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5812 which should be used for version portability: especially since the
5813 verify structure is likely to change more often now.
5815 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5816 to set them. If not set then assume SSL clients will verify SSL servers
5819 Two new options to the verify program: -untrusted allows a set of
5820 untrusted certificates to be passed in and -purpose which sets the
5821 intended purpose of the certificate. If a purpose is set then the
5822 new chain verify code is used to check extension consistency.
5825 *) Support for the authority information access extension.
5828 *) Modify RSA and DSA PEM read routines to transparently handle
5829 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5830 public keys in a format compatible with certificate
5831 SubjectPublicKeyInfo structures. Unfortunately there were already
5832 functions called *_PublicKey_* which used various odd formats so
5833 these are retained for compatibility: however the DSA variants were
5834 never in a public release so they have been deleted. Changed dsa/rsa
5835 utilities to handle the new format: note no releases ever handled public
5836 keys so we should be OK.
5838 The primary motivation for this change is to avoid the same fiasco
5839 that dogs private keys: there are several incompatible private key
5840 formats some of which are standard and some OpenSSL specific and
5841 require various evil hacks to allow partial transparent handling and
5842 even then it doesn't work with DER formats. Given the option anything
5843 other than PKCS#8 should be dumped: but the other formats have to
5844 stay in the name of compatibility.
5846 With public keys and the benefit of hindsight one standard format
5847 is used which works with EVP_PKEY, RSA or DSA structures: though
5848 it clearly returns an error if you try to read the wrong kind of key.
5850 Added a -pubkey option to the 'x509' utility to output the public key.
5851 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5852 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5853 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5854 that do the same as the EVP_PKEY_assign_*() except they up the
5855 reference count of the added key (they don't "swallow" the
5859 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5860 CRLs would fail if the file contained no certificates or no CRLs:
5861 added a new function to read in both types and return the number
5862 read: this means that if none are read it will be an error. The
5863 DER versions of the certificate and CRL reader would always fail
5864 because it isn't possible to mix certificates and CRLs in DER format
5865 without choking one or the other routine. Changed this to just read
5866 a certificate: this is the best we can do. Also modified the code
5867 in apps/verify.c to take notice of return codes: it was previously
5868 attempting to read in certificates from NULL pointers and ignoring
5869 any errors: this is one reason why the cert and CRL reader seemed
5870 to work. It doesn't check return codes from the default certificate
5871 routines: these may well fail if the certificates aren't installed.
5874 *) Code to support otherName option in GeneralName.
5877 *) First update to verify code. Change the verify utility
5878 so it warns if it is passed a self signed certificate:
5879 for consistency with the normal behaviour. X509_verify
5880 has been modified to it will now verify a self signed
5881 certificate if *exactly* the same certificate appears
5882 in the store: it was previously impossible to trust a
5883 single self signed certificate. This means that:
5884 openssl verify ss.pem
5885 now gives a warning about a self signed certificate but
5886 openssl verify -CAfile ss.pem ss.pem
5890 *) For servers, store verify_result in SSL_SESSION data structure
5891 (and add it to external session representation).
5892 This is needed when client certificate verifications fails,
5893 but an application-provided verification callback (set by
5894 SSL_CTX_set_cert_verify_callback) allows accepting the session
5895 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5896 but returns 1): When the session is reused, we have to set
5897 ssl->verify_result to the appropriate error code to avoid
5899 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5901 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5902 case in PKCS7_dataInit() where the signed PKCS7 structure
5903 didn't contain any existing data because it was being created.
5904 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5906 *) Add a salt to the key derivation routines in enc.c. This
5907 forms the first 8 bytes of the encrypted file. Also add a
5908 -S option to allow a salt to be input on the command line.
5911 *) New function X509_cmp(). Oddly enough there wasn't a function
5912 to compare two certificates. We do this by working out the SHA1
5913 hash and comparing that. X509_cmp() will be needed by the trust
5917 *) SSL_get1_session() is like SSL_get_session(), but increments
5918 the reference count in the SSL_SESSION returned.
5919 [Geoff Thorpe <geoff@eu.c2.net>]
5921 *) Fix for 'req': it was adding a null to request attributes.
5922 Also change the X509_LOOKUP and X509_INFO code to handle
5923 certificate auxiliary information.
5926 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5930 *) Add the possibility to add extra information to the memory leak
5931 detecting output, to form tracebacks, showing from where each
5932 allocation was originated: CRYPTO_push_info("constant string") adds
5933 the string plus current file name and line number to a per-thread
5934 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5935 is like calling CYRPTO_pop_info() until the stack is empty.
5936 Also updated memory leak detection code to be multi-thread-safe.
5939 *) Add options -text and -noout to pkcs7 utility and delete the
5940 encryption options which never did anything. Update docs.
5943 *) Add options to some of the utilities to allow the pass phrase
5944 to be included on either the command line (not recommended on
5945 OSes like Unix) or read from the environment. Update the
5946 manpages and fix a few bugs.
5949 *) Add a few manpages for some of the openssl commands.
5952 *) Fix the -revoke option in ca. It was freeing up memory twice,
5953 leaking and not finding already revoked certificates.
5956 *) Extensive changes to support certificate auxiliary information.
5957 This involves the use of X509_CERT_AUX structure and X509_AUX
5958 functions. An X509_AUX function such as PEM_read_X509_AUX()
5959 can still read in a certificate file in the usual way but it
5960 will also read in any additional "auxiliary information". By
5961 doing things this way a fair degree of compatibility can be
5962 retained: existing certificates can have this information added
5963 using the new 'x509' options.
5965 Current auxiliary information includes an "alias" and some trust
5966 settings. The trust settings will ultimately be used in enhanced
5967 certificate chain verification routines: currently a certificate
5968 can only be trusted if it is self signed and then it is trusted
5972 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5973 The problem was that one of the replacement routines had not been working
5974 since SSLeay releases. For now the offending routine has been replaced
5975 with non-optimised assembler. Even so, this now gives around 95%
5976 performance improvement for 1024 bit RSA signs.
5979 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5980 handling. Most clients have the effective key size in bits equal to
5981 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5982 A few however don't do this and instead use the size of the decrypted key
5983 to determine the RC2 key length and the AlgorithmIdentifier to determine
5984 the effective key length. In this case the effective key length can still
5985 be 40 bits but the key length can be 168 bits for example. This is fixed
5986 by manually forcing an RC2 key into the EVP_PKEY structure because the
5987 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5988 the key length and effective key length are equal.
5991 *) Add a bunch of functions that should simplify the creation of
5992 X509_NAME structures. Now you should be able to do:
5993 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5994 and have it automatically work out the correct field type and fill in
5995 the structures. The more adventurous can try:
5996 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5997 and it will (hopefully) work out the correct multibyte encoding.
6000 *) Change the 'req' utility to use the new field handling and multibyte
6001 copy routines. Before the DN field creation was handled in an ad hoc
6002 way in req, ca, and x509 which was rather broken and didn't support
6003 BMPStrings or UTF8Strings. Since some software doesn't implement
6004 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6005 using the dirstring_type option. See the new comment in the default
6006 openssl.cnf for more info.
6009 *) Make crypto/rand/md_rand.c more robust:
6010 - Assure unique random numbers after fork().
6011 - Make sure that concurrent threads access the global counter and
6012 md serializably so that we never lose entropy in them
6013 or use exactly the same state in multiple threads.
6014 Access to the large state is not always serializable because
6015 the additional locking could be a performance killer, and
6016 md should be large enough anyway.
6019 *) New file apps/app_rand.c with commonly needed functionality
6020 for handling the random seed file.
6022 Use the random seed file in some applications that previously did not:
6024 dsaparam -genkey (which also ignored its '-rand' option),
6027 x509 (when signing).
6028 Except on systems with /dev/urandom, it is crucial to have a random
6029 seed file at least for key creation, DSA signing, and for DH exchanges;
6030 for RSA signatures we could do without one.
6032 gendh and gendsa (unlike genrsa) used to read only the first byte
6033 of each file listed in the '-rand' option. The function as previously
6034 found in genrsa is now in app_rand.c and is used by all programs
6035 that support '-rand'.
6038 *) In RAND_write_file, use mode 0600 for creating files;
6039 don't just chmod when it may be too late.
6042 *) Report an error from X509_STORE_load_locations
6043 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6046 *) New function ASN1_mbstring_copy() this copies a string in either
6047 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6048 into an ASN1_STRING type. A mask of permissible types is passed
6049 and it chooses the "minimal" type to use or an error if not type
6053 *) Add function equivalents to the various macros in asn1.h. The old
6054 macros are retained with an M_ prefix. Code inside the library can
6055 use the M_ macros. External code (including the openssl utility)
6056 should *NOT* in order to be "shared library friendly".
6059 *) Add various functions that can check a certificate's extensions
6060 to see if it usable for various purposes such as SSL client,
6061 server or S/MIME and CAs of these types. This is currently
6062 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6063 verification. Also added a -purpose flag to x509 utility to
6064 print out all the purposes.
6067 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6071 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6072 for, obtain and decode and extension and obtain its critical flag.
6073 This allows all the necessary extension code to be handled in a
6074 single function call.
6077 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6078 platforms. See crypto/rc4/rc4_enc.c for further details.
6081 *) New -noout option to asn1parse. This causes no output to be produced
6082 its main use is when combined with -strparse and -out to extract data
6083 from a file (which may not be in ASN.1 format).
6086 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6087 when producing the local key id.
6088 [Richard Levitte <levitte@stacken.kth.se>]
6090 *) New option -dhparam in s_server. This allows a DH parameter file to be
6091 stated explicitly. If it is not stated then it tries the first server
6092 certificate file. The previous behaviour hard coded the filename
6096 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6097 a public key to be input or output. For example:
6098 openssl rsa -in key.pem -pubout -out pubkey.pem
6099 Also added necessary DSA public key functions to handle this.
6102 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6103 in the message. This was handled by allowing
6104 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6105 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6107 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6108 to the end of the strings whereas this didn't. This would cause problems
6109 if strings read with d2i_ASN1_bytes() were later modified.
6110 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6112 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6113 data and it contains EOF it will end up returning an error. This is
6114 caused by input 46 bytes long. The cause is due to the way base64
6115 BIOs find the start of base64 encoded data. They do this by trying a
6116 trial decode on each line until they find one that works. When they
6117 do a flag is set and it starts again knowing it can pass all the
6118 data directly through the decoder. Unfortunately it doesn't reset
6119 the context it uses. This means that if EOF is reached an attempt
6120 is made to pass two EOFs through the context and this causes the
6121 resulting error. This can also cause other problems as well. As is
6122 usual with these problems it takes *ages* to find and the fix is
6123 trivial: move one line.
6124 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6126 *) Ugly workaround to get s_client and s_server working under Windows. The
6127 old code wouldn't work because it needed to select() on sockets and the
6128 tty (for keypresses and to see if data could be written). Win32 only
6129 supports select() on sockets so we select() with a 1s timeout on the
6130 sockets and then see if any characters are waiting to be read, if none
6131 are present then we retry, we also assume we can always write data to
6132 the tty. This isn't nice because the code then blocks until we've
6133 received a complete line of data and it is effectively polling the
6134 keyboard at 1s intervals: however it's quite a bit better than not
6135 working at all :-) A dedicated Windows application might handle this
6136 with an event loop for example.
6139 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6140 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6141 will be called when RSA_sign() and RSA_verify() are used. This is useful
6142 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6143 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6144 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6145 This necessitated the support of an extra signature type NID_md5_sha1
6146 for SSL signatures and modifications to the SSL library to use it instead
6147 of calling RSA_public_decrypt() and RSA_private_encrypt().
6150 *) Add new -verify -CAfile and -CApath options to the crl program, these
6151 will lookup a CRL issuers certificate and verify the signature in a
6152 similar way to the verify program. Tidy up the crl program so it
6153 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6154 less strict. It will now permit CRL extensions even if it is not
6155 a V2 CRL: this will allow it to tolerate some broken CRLs.
6158 *) Initialize all non-automatic variables each time one of the openssl
6159 sub-programs is started (this is necessary as they may be started
6160 multiple times from the "OpenSSL>" prompt).
6161 [Lennart Bang, Bodo Moeller]
6163 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6164 removing all other RSA functionality (this is what NO_RSA does). This
6165 is so (for example) those in the US can disable those operations covered
6166 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6170 *) Non-copying interface to BIO pairs.
6171 (still largely untested)
6174 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6175 ASCII string. This was handled independently in various places before.
6178 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6179 UTF8 strings a character at a time.
6182 *) Use client_version from client hello to select the protocol
6183 (s23_srvr.c) and for RSA client key exchange verification
6184 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6187 *) Add various utility functions to handle SPKACs, these were previously
6188 handled by poking round in the structure internals. Added new function
6189 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6190 print, verify and generate SPKACs. Based on an original idea from
6191 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6194 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6197 *) Allow the config file extension section to be overwritten on the
6198 command line. Based on an original idea from Massimiliano Pala
6199 <madwolf@comune.modena.it>. The new option is called -extensions
6200 and can be applied to ca, req and x509. Also -reqexts to override
6201 the request extensions in req and -crlexts to override the crl extensions
6205 *) Add new feature to the SPKAC handling in ca. Now you can include
6206 the same field multiple times by preceding it by "XXXX." for example:
6209 this is the same syntax as used in the req config file.
6212 *) Allow certificate extensions to be added to certificate requests. These
6213 are specified in a 'req_extensions' option of the req section of the
6214 config file. They can be printed out with the -text option to req but
6215 are otherwise ignored at present.
6218 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6219 data read consists of only the final block it would not decrypted because
6220 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6221 A misplaced 'break' also meant the decrypted final block might not be
6222 copied until the next read.
6225 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6226 a few extra parameters to the DH structure: these will be useful if
6227 for example we want the value of 'q' or implement X9.42 DH.
6230 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6231 provides hooks that allow the default DSA functions or functions on a
6232 "per key" basis to be replaced. This allows hardware acceleration and
6233 hardware key storage to be handled without major modification to the
6234 library. Also added low level modexp hooks and CRYPTO_EX structure and
6235 associated functions.
6238 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6239 as "read only": it can't be written to and the buffer it points to will
6240 not be freed. Reading from a read only BIO is much more efficient than
6241 a normal memory BIO. This was added because there are several times when
6242 an area of memory needs to be read from a BIO. The previous method was
6243 to create a memory BIO and write the data to it, this results in two
6244 copies of the data and an O(n^2) reading algorithm. There is a new
6245 function BIO_new_mem_buf() which creates a read only memory BIO from
6246 an area of memory. Also modified the PKCS#7 routines to use read only
6250 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6251 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6252 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6253 but a retry condition occured while trying to read the rest.
6256 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6257 NID_pkcs7_encrypted by default: this was wrong since this should almost
6258 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6259 the encrypted data type: this is a more sensible place to put it and it
6260 allows the PKCS#12 code to be tidied up that duplicated this
6264 *) Changed obj_dat.pl script so it takes its input and output files on
6265 the command line. This should avoid shell escape redirection problems
6269 *) Initial support for certificate extension requests, these are included
6270 in things like Xenroll certificate requests. Included functions to allow
6271 extensions to be obtained and added.
6274 *) -crlf option to s_client and s_server for sending newlines as
6275 CRLF (as required by many protocols).
6278 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6280 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6281 [Ralf S. Engelschall]
6283 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6284 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6286 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6290 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6291 DH parameters/keys (q is lost during that conversion, but the resulting
6292 DH parameters contain its length).
6294 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6295 much faster than DH_generate_parameters (which creates parameters
6296 where p = 2*q + 1), and also the smaller q makes DH computations
6297 much more efficient (160-bit exponentiation instead of 1024-bit
6298 exponentiation); so this provides a convenient way to support DHE
6299 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6300 utter importance to use
6301 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6303 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6304 when such DH parameters are used, because otherwise small subgroup
6305 attacks may become possible!
6308 *) Avoid memory leak in i2d_DHparams.
6311 *) Allow the -k option to be used more than once in the enc program:
6312 this allows the same encrypted message to be read by multiple recipients.
6315 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6316 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6317 it will always use the numerical form of the OID, even if it has a short
6321 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6322 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6323 otherwise bn_mod_exp was called. In the case of hardware keys for example
6324 no private key components need be present and it might store extra data
6325 in the RSA structure, which cannot be accessed from bn_mod_exp.
6326 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6327 private key operations.
6330 *) Added support for SPARC Linux.
6333 *) pem_password_cb function type incompatibly changed from
6334 typedef int pem_password_cb(char *buf, int size, int rwflag);
6336 ....(char *buf, int size, int rwflag, void *userdata);
6337 so that applications can pass data to their callbacks:
6338 The PEM[_ASN1]_{read,write}... functions and macros now take an
6339 additional void * argument, which is just handed through whenever
6340 the password callback is called.
6341 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6343 New function SSL_CTX_set_default_passwd_cb_userdata.
6345 Compatibility note: As many C implementations push function arguments
6346 onto the stack in reverse order, the new library version is likely to
6347 interoperate with programs that have been compiled with the old
6348 pem_password_cb definition (PEM_whatever takes some data that
6349 happens to be on the stack as its last argument, and the callback
6350 just ignores this garbage); but there is no guarantee whatsoever that
6353 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6354 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6355 problems not only on Windows, but also on some Unix platforms.
6356 To avoid problematic command lines, these definitions are now in an
6357 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6358 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6361 *) MIPS III/IV assembler module is reimplemented.
6364 *) More DES library cleanups: remove references to srand/rand and
6365 delete an unused file.
6368 *) Add support for the the free Netwide assembler (NASM) under Win32,
6369 since not many people have MASM (ml) and it can be hard to obtain.
6370 This is currently experimental but it seems to work OK and pass all
6371 the tests. Check out INSTALL.W32 for info.
6374 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6375 without temporary keys kept an extra copy of the server key,
6376 and connections with temporary keys did not free everything in case
6380 *) New function RSA_check_key and new openssl rsa option -check
6381 for verifying the consistency of RSA keys.
6382 [Ulf Moeller, Bodo Moeller]
6384 *) Various changes to make Win32 compile work:
6385 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6386 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6387 comparison" warnings.
6388 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6391 *) Add a debugging option to PKCS#5 v2 key generation function: when
6392 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6393 derived keys are printed to stderr.
6396 *) Copy the flags in ASN1_STRING_dup().
6397 [Roman E. Pavlov <pre@mo.msk.ru>]
6399 *) The x509 application mishandled signing requests containing DSA
6400 keys when the signing key was also DSA and the parameters didn't match.
6402 It was supposed to omit the parameters when they matched the signing key:
6403 the verifying software was then supposed to automatically use the CA's
6404 parameters if they were absent from the end user certificate.
6406 Omitting parameters is no longer recommended. The test was also
6407 the wrong way round! This was probably due to unusual behaviour in
6408 EVP_cmp_parameters() which returns 1 if the parameters match.
6409 This meant that parameters were omitted when they *didn't* match and
6410 the certificate was useless. Certificates signed with 'ca' didn't have
6412 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6414 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6415 The interface is as follows:
6416 Applications can use
6417 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6418 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6419 "off" is now the default.
6420 The library internally uses
6421 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6422 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6423 to disable memory-checking temporarily.
6425 Some inconsistent states that previously were possible (and were
6426 even the default) are now avoided.
6428 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6429 with each memory chunk allocated; this is occasionally more helpful
6430 than just having a counter.
6432 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6434 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6438 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6439 which largely parallels "options", but is for changing API behaviour,
6440 whereas "options" are about protocol behaviour.
6441 Initial "mode" flags are:
6443 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6444 a single record has been written.
6445 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6446 retries use the same buffer location.
6447 (But all of the contents must be
6451 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6454 *) Fix problems with no-hmac etc.
6455 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6457 *) New functions RSA_get_default_method(), RSA_set_method() and
6458 RSA_get_method(). These allows replacement of RSA_METHODs without having
6459 to mess around with the internals of an RSA structure.
6462 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6463 Also really enable memory leak checks in openssl.c and in some
6465 [Chad C. Mulligan, Bodo Moeller]
6467 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6468 up the length of negative integers. This has now been simplified to just
6469 store the length when it is first determined and use it later, rather
6470 than trying to keep track of where data is copied and updating it to
6472 [Steve Henson, reported by Brien Wheeler
6473 <bwheeler@authentica-security.com>]
6475 *) Add a new function PKCS7_signatureVerify. This allows the verification
6476 of a PKCS#7 signature but with the signing certificate passed to the
6477 function itself. This contrasts with PKCS7_dataVerify which assumes the
6478 certificate is present in the PKCS#7 structure. This isn't always the
6479 case: certificates can be omitted from a PKCS#7 structure and be
6480 distributed by "out of band" means (such as a certificate database).
6483 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6484 function prototypes in pem.h, also change util/mkdef.pl to add the
6485 necessary function names.
6488 *) mk1mf.pl (used by Windows builds) did not properly read the
6489 options set by Configure in the top level Makefile, and Configure
6490 was not even able to write more than one option correctly.
6491 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6494 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6495 file to be loaded from a BIO or FILE pointer. The BIO version will
6496 for example allow memory BIOs to contain config info.
6499 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6500 Whoever hopes to achieve shared-library compatibility across versions
6501 must use this, not the compile-time macro.
6502 (Exercise 0.9.4: Which is the minimum library version required by
6504 Note: All this applies only to multi-threaded programs, others don't
6508 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6509 through a BIO pair triggered the default case, i.e.
6510 SSLerr(...,SSL_R_UNKNOWN_STATE).
6513 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6514 can use the SSL library even if none of the specific BIOs is
6518 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6519 for the encoded length.
6520 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6522 *) Add initial documentation of the X509V3 functions.
6525 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6526 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6527 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6528 secure PKCS#8 private key format with a high iteration count.
6531 *) Fix determination of Perl interpreter: A perl or perl5
6532 _directory_ in $PATH was also accepted as the interpreter.
6533 [Ralf S. Engelschall]
6535 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6536 wrong with it but it was very old and did things like calling
6537 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6541 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6542 to use the new extension code.
6545 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6546 with macros. This should make it easier to change their form, add extra
6547 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6551 *) Add to configuration table a new entry that can specify an alternative
6552 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6553 according to Mark Crispin <MRC@Panda.COM>.
6557 *) DES CBC did not update the IV. Weird.
6560 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6561 Changing the behaviour of the former might break existing programs --
6562 where IV updating is needed, des_ncbc_encrypt can be used.
6565 *) When bntest is run from "make test" it drives bc to check its
6566 calculations, as well as internally checking them. If an internal check
6567 fails, it needs to cause bc to give a non-zero result or make test carries
6568 on without noticing the failure. Fixed.
6571 *) DES library cleanups.
6574 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6575 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6576 ciphers. NOTE: although the key derivation function has been verified
6577 against some published test vectors it has not been extensively tested
6578 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6582 *) Instead of "mkdir -p", which is not fully portable, use new
6583 Perl script "util/mkdir-p.pl".
6586 *) Rewrite the way password based encryption (PBE) is handled. It used to
6587 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6588 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6589 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6590 the 'parameter' field of the AlgorithmIdentifier is passed to the
6591 underlying key generation function so it must do its own ASN1 parsing.
6592 This has also changed the EVP_PBE_CipherInit() function which now has a
6593 'parameter' argument instead of literal salt and iteration count values
6594 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6597 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6598 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6599 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6600 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6601 value was just used as a "magic string" and not used directly its
6602 value doesn't matter.
6605 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6609 *) "linux-sparc64" configuration (ultrapenguin).
6610 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6611 "linux-sparc" configuration.
6612 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6614 *) config now generates no-xxx options for missing ciphers.
6617 *) Support the EBCDIC character set (work in progress).
6618 File ebcdic.c not yet included because it has a different license.
6619 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6621 *) Support BS2000/OSD-POSIX.
6622 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6624 *) Make callbacks for key generation use void * instead of char *.
6627 *) Make S/MIME samples compile (not yet tested).
6630 *) Additional typesafe stacks.
6633 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6637 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6639 *) New configuration variant "sco5-gcc".
6641 *) Updated some demos.
6642 [Sean O Riordain, Wade Scholine]
6644 *) Add missing BIO_free at exit of pkcs12 application.
6647 *) Fix memory leak in conf.c.
6650 *) Updates for Win32 to assembler version of MD5.
6653 *) Set #! path to perl in apps/der_chop to where we found it
6654 instead of using a fixed path.
6657 *) SHA library changes for irix64-mips4-cc.
6660 *) Improvements for VMS support.
6664 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6666 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6667 This also avoids the problems with SC4.2 and unpatched SC5.
6668 [Andy Polyakov <appro@fy.chalmers.se>]
6670 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6671 These are required because of the typesafe stack would otherwise break
6672 existing code. If old code used a structure member which used to be STACK
6673 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6674 sk_num or sk_value it would produce an error because the num, data members
6675 are not present in STACK_OF. Now it just produces a warning. sk_set
6676 replaces the old method of assigning a value to sk_value
6677 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6678 that does this will no longer work (and should use sk_set instead) but
6679 this could be regarded as a "questionable" behaviour anyway.
6682 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6683 correctly handle encrypted S/MIME data.
6686 *) Change type of various DES function arguments from des_cblock
6687 (which means, in function argument declarations, pointer to char)
6688 to des_cblock * (meaning pointer to array with 8 char elements),
6689 which allows the compiler to do more typechecking; it was like
6690 that back in SSLeay, but with lots of ugly casts.
6692 Introduce new type const_des_cblock.
6695 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6696 problems: find RecipientInfo structure that matches recipient certificate
6697 and initialise the ASN1 structures properly based on passed cipher.
6700 *) Belatedly make the BN tests actually check the results.
6703 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6704 to and from BNs: it was completely broken. New compilation option
6705 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6706 key elements as negative integers.
6709 *) Reorganize and speed up MD5.
6710 [Andy Polyakov <appro@fy.chalmers.se>]
6713 [Richard Levitte <richard@levitte.org>]
6715 *) New option -out to asn1parse to allow the parsed structure to be
6716 output to a file. This is most useful when combined with the -strparse
6717 option to examine the output of things like OCTET STRINGS.
6720 *) Make SSL library a little more fool-proof by not requiring any longer
6721 that SSL_set_{accept,connect}_state be called before
6722 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6723 in many applications because usually everything *appeared* to work as
6724 intended anyway -- now it really works as intended).
6727 *) Move openssl.cnf out of lib/.
6730 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6731 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6732 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6733 [Ralf S. Engelschall]
6735 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6736 handle PKCS#7 enveloped data properly.
6737 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6739 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6740 copying pointers. The cert_st handling is changed by this in
6741 various ways (and thus what used to be known as ctx->default_cert
6742 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6743 any longer when s->cert does not give us what we need).
6744 ssl_cert_instantiate becomes obsolete by this change.
6745 As soon as we've got the new code right (possibly it already is?),
6746 we have solved a couple of bugs of the earlier code where s->cert
6747 was used as if it could not have been shared with other SSL structures.
6749 Note that using the SSL API in certain dirty ways now will result
6750 in different behaviour than observed with earlier library versions:
6751 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6752 does not influence s as it used to.
6754 In order to clean up things more thoroughly, inside SSL_SESSION
6755 we don't use CERT any longer, but a new structure SESS_CERT
6756 that holds per-session data (if available); currently, this is
6757 the peer's certificate chain and, for clients, the server's certificate
6758 and temporary key. CERT holds only those values that can have
6759 meaningful defaults in an SSL_CTX.
6762 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6763 from the internal representation. Various PKCS#7 fixes: remove some
6764 evil casts and set the enc_dig_alg field properly based on the signing
6768 *) Allow PKCS#12 password to be set from the command line or the
6769 environment. Let 'ca' get its config file name from the environment
6770 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6774 *) Allow certificate policies extension to use an IA5STRING for the
6775 organization field. This is contrary to the PKIX definition but
6776 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6780 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6781 without disallowing inline assembler and the like for non-pedantic builds.
6784 *) Support Borland C++ builder.
6785 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6790 *) SHA-1 cleanups and performance enhancements.
6791 [Andy Polyakov <appro@fy.chalmers.se>]
6793 *) Sparc v8plus assembler for the bignum library.
6794 [Andy Polyakov <appro@fy.chalmers.se>]
6796 *) Accept any -xxx and +xxx compiler options in Configure.
6799 *) Update HPUX configuration.
6802 *) Add missing sk_<type>_unshift() function to safestack.h
6803 [Ralf S. Engelschall]
6805 *) New function SSL_CTX_use_certificate_chain_file that sets the
6806 "extra_cert"s in addition to the certificate. (This makes sense
6807 only for "PEM" format files, as chains as a whole are not
6811 *) Support verify_depth from the SSL API.
6812 x509_vfy.c had what can be considered an off-by-one-error:
6813 Its depth (which was not part of the external interface)
6814 was actually counting the number of certificates in a chain;
6815 now it really counts the depth.
6818 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6819 instead of X509err, which often resulted in confusing error
6820 messages since the error codes are not globally unique
6821 (e.g. an alleged error in ssl3_accept when a certificate
6822 didn't match the private key).
6824 *) New function SSL_CTX_set_session_id_context that allows to set a default
6825 value (so that you don't need SSL_set_session_id_context for each
6826 connection using the SSL_CTX).
6829 *) OAEP decoding bug fix.
6832 *) Support INSTALL_PREFIX for package builders, as proposed by
6836 *) New Configure options "threads" and "no-threads". For systems
6837 where the proper compiler options are known (currently Solaris
6838 and Linux), "threads" is the default.
6841 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6844 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6845 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6846 such as /usr/local/bin.
6849 *) "make linux-shared" to build shared libraries.
6850 [Niels Poppe <niels@netbox.org>]
6852 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6855 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6856 extension adding in x509 utility.
6859 *) Remove NOPROTO sections and error code comments.
6862 *) Partial rewrite of the DEF file generator to now parse the ANSI
6866 *) New Configure options --prefix=DIR and --openssldir=DIR.
6869 *) Complete rewrite of the error code script(s). It is all now handled
6870 by one script at the top level which handles error code gathering,
6871 header rewriting and C source file generation. It should be much better
6872 than the old method: it now uses a modified version of Ulf's parser to
6873 read the ANSI prototypes in all header files (thus the old K&R definitions
6874 aren't needed for error creation any more) and do a better job of
6875 translating function codes into names. The old 'ASN1 error code imbedded
6876 in a comment' is no longer necessary and it doesn't use .err files which
6877 have now been deleted. Also the error code call doesn't have to appear all
6878 on one line (which resulted in some large lines...).
6881 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6884 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6885 0 (which usually indicates a closed connection), but continue reading.
6888 *) Fix some race conditions.
6891 *) Add support for CRL distribution points extension. Add Certificate
6892 Policies and CRL distribution points documentation.
6895 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6898 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6899 8 of keying material. Merlin has also confirmed interop with this fix
6900 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6901 [Merlin Hughes <merlin@baltimore.ie>]
6903 *) Fix lots of warnings.
6904 [Richard Levitte <levitte@stacken.kth.se>]
6906 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6907 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6908 [Richard Levitte <levitte@stacken.kth.se>]
6910 *) Fix problems with sizeof(long) == 8.
6911 [Andy Polyakov <appro@fy.chalmers.se>]
6913 *) Change functions to ANSI C.
6916 *) Fix typos in error codes.
6917 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6919 *) Remove defunct assembler files from Configure.
6922 *) SPARC v8 assembler BIGNUM implementation.
6923 [Andy Polyakov <appro@fy.chalmers.se>]
6925 *) Support for Certificate Policies extension: both print and set.
6926 Various additions to support the r2i method this uses.
6929 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6930 return a const string when you are expecting an allocated buffer.
6933 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6934 types DirectoryString and DisplayText.
6937 *) Add code to allow r2i extensions to access the configuration database,
6938 add an LHASH database driver and add several ctx helper functions.
6941 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6942 fail when they extended the size of a BIGNUM.
6945 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6946 support typesafe stack.
6949 *) Fix typo in SSL_[gs]et_options().
6950 [Nils Frostberg <nils@medcom.se>]
6952 *) Delete various functions and files that belonged to the (now obsolete)
6953 old X509V3 handling code.
6956 *) New Configure option "rsaref".
6959 *) Don't auto-generate pem.h.
6962 *) Introduce type-safe ASN.1 SETs.
6965 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6966 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6968 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6969 that links with OpenSSL (well at least cause lots of warnings), but fear
6970 not: the conversion is trivial, and it eliminates loads of evil casts. A
6971 few STACKed things have been converted already. Feel free to convert more.
6972 In the fullness of time, I'll do away with the STACK type altogether.
6975 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6976 specified in <certfile> by updating the entry in the index.txt file.
6977 This way one no longer has to edit the index.txt file manually for
6978 revoking a certificate. The -revoke option does the gory details now.
6979 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6981 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6982 `-text' option at all and this way the `-noout -text' combination was
6983 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6984 [Ralf S. Engelschall]
6986 *) Make sure a corresponding plain text error message exists for the
6987 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6988 verify callback function determined that a certificate was revoked.
6989 [Ralf S. Engelschall]
6991 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6992 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6993 all available cipers including rc5, which was forgotten until now.
6994 In order to let the testing shell script know which algorithms
6995 are available, a new (up to now undocumented) command
6996 "openssl list-cipher-commands" is used.
6999 *) Bugfix: s_client occasionally would sleep in select() when
7000 it should have checked SSL_pending() first.
7003 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7004 the raw DSA values prior to ASN.1 encoding.
7007 *) Tweaks to Configure
7008 [Niels Poppe <niels@netbox.org>]
7010 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7014 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7017 *) New config option to avoid instructions that are illegal on the 80386.
7018 The default code is faster, but requires at least a 486.
7021 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7022 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7023 same as SSL2_VERSION anyway.
7026 *) New "-showcerts" option for s_client.
7029 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7030 application. Various cleanups and fixes.
7033 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7034 modify error routines to work internally. Add error codes and PBE init
7035 to library startup routines.
7038 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7039 packing functions to asn1 and evp. Changed function names and error
7040 codes along the way.
7043 *) PKCS12 integration: and so it begins... First of several patches to
7044 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7045 objects to objects.h
7048 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7049 and display support for Thawte strong extranet extension.
7052 *) Add LinuxPPC support.
7053 [Jeff Dubrule <igor@pobox.org>]
7055 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7056 bn_div_words in alpha.s.
7057 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7059 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7060 OAEP isn't supported when OpenSSL is built with RSAref.
7061 [Ulf Moeller <ulf@fitug.de>]
7063 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7064 so they no longer are missing under -DNOPROTO.
7065 [Soren S. Jorvang <soren@t.dk>]
7068 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7070 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7071 doesn't work when the session is reused. Coming soon!
7074 *) Fix a security hole, that allows sessions to be reused in the wrong
7075 context thus bypassing client cert protection! All software that uses
7076 client certs and session caches in multiple contexts NEEDS PATCHING to
7077 allow session reuse! A fuller solution is in the works.
7078 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7080 *) Some more source tree cleanups (removed obsolete files
7081 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7082 permission on "config" script to be executable) and a fix for the INSTALL
7084 [Ulf Moeller <ulf@fitug.de>]
7086 *) Remove some legacy and erroneous uses of malloc, free instead of
7088 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7090 *) Make rsa_oaep_test return non-zero on error.
7091 [Ulf Moeller <ulf@fitug.de>]
7093 *) Add support for native Solaris shared libraries. Configure
7094 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7095 if someone would make that last step automatic.
7096 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7098 *) ctx_size was not built with the right compiler during "make links". Fixed.
7101 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7102 except NULL ciphers". This means the default cipher list will no longer
7103 enable NULL ciphers. They need to be specifically enabled e.g. with
7104 the string "DEFAULT:eNULL".
7107 *) Fix to RSA private encryption routines: if p < q then it would
7108 occasionally produce an invalid result. This will only happen with
7109 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7112 *) Be less restrictive and allow also `perl util/perlpath.pl
7113 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7114 because this way one can also use an interpreter named `perl5' (which is
7115 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7116 installed as `perl').
7117 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7119 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7120 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7122 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7123 advapi32.lib to Win32 build and change the pem test comparision
7124 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7125 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7126 and crypto/des/ede_cbcm_enc.c.
7129 *) DES quad checksum was broken on big-endian architectures. Fixed.
7132 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7133 Win32 test batch file so it (might) work again. The Win32 test batch file
7134 is horrible: I feel ill....
7137 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7138 in e_os.h. Audit of header files to check ANSI and non ANSI
7139 sections: 10 functions were absent from non ANSI section and not exported
7140 from Windows DLLs. Fixed up libeay.num for new functions.
7143 *) Make `openssl version' output lines consistent.
7144 [Ralf S. Engelschall]
7146 *) Fix Win32 symbol export lists for BIO functions: Added
7147 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7148 to ms/libeay{16,32}.def.
7149 [Ralf S. Engelschall]
7151 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7152 fine under Unix and passes some trivial tests I've now added. But the
7153 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7154 added to make sure no one expects that this stuff really works in the
7155 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7156 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7158 [Ralf S. Engelschall]
7160 *) Fix the generation of two part addresses in perl.
7161 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7163 *) Add config entry for Linux on MIPS.
7164 [John Tobey <jtobey@channel1.com>]
7166 *) Make links whenever Configure is run, unless we are on Windoze.
7169 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7170 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7174 *) Add a useful kludge to allow package maintainers to specify compiler and
7175 other platforms details on the command line without having to patch the
7176 Configure script everytime: One now can use ``perl Configure
7177 <id>:<details>'', i.e. platform ids are allowed to have details appended
7178 to them (seperated by colons). This is treated as there would be a static
7179 pre-configured entry in Configure's %table under key <id> with value
7180 <details> and ``perl Configure <id>'' is called. So, when you want to
7181 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7182 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7183 now, which overrides the FreeBSD-elf entry on-the-fly.
7184 [Ralf S. Engelschall]
7186 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7189 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7190 on the `perl Configure ...' command line. This way one can compile
7191 OpenSSL libraries with Position Independent Code (PIC) which is needed
7192 for linking it into DSOs.
7193 [Ralf S. Engelschall]
7195 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7199 *) Cleaned up the LICENSE document: The official contact for any license
7200 questions now is the OpenSSL core team under openssl-core@openssl.org.
7201 And add a paragraph about the dual-license situation to make sure people
7202 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7203 to the OpenSSL toolkit.
7204 [Ralf S. Engelschall]
7206 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7207 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7208 Additonally cleaned up the `make links' target: Remove unnecessary
7209 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7210 to speed processing and no longer clutter the display with confusing
7211 stuff. Instead only the actually done links are displayed.
7212 [Ralf S. Engelschall]
7214 *) Permit null encryption ciphersuites, used for authentication only. It used
7215 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7216 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7220 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7221 signed attributes when verifying signatures (this would break them),
7222 the detached data encoding was wrong and public keys obtained using
7223 X509_get_pubkey() weren't freed.
7226 *) Add text documentation for the BUFFER functions. Also added a work around
7227 to a Win95 console bug. This was triggered by the password read stuff: the
7228 last character typed gets carried over to the next fread(). If you were
7229 generating a new cert request using 'req' for example then the last
7230 character of the passphrase would be CR which would then enter the first
7234 *) Added the new `Includes OpenSSL Cryptography Software' button as
7235 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7236 button and can be used by applications based on OpenSSL to show the
7237 relationship to the OpenSSL project.
7238 [Ralf S. Engelschall]
7240 *) Remove confusing variables in function signatures in files
7241 ssl/ssl_lib.c and ssl/ssl.h.
7242 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7244 *) Don't install bss_file.c under PREFIX/include/
7245 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7247 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7248 functions that return function pointers and has support for NT specific
7249 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7250 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7251 unsigned to signed types: this was killing the Win32 compile.
7254 *) Add new certificate file to stack functions,
7255 SSL_add_dir_cert_subjects_to_stack() and
7256 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7257 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7258 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7259 This means that Apache-SSL and similar packages don't have to mess around
7260 to add as many CAs as they want to the preferred list.
7263 *) Experiment with doxygen documentation. Currently only partially applied to
7265 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7266 openssl.doxy as the configuration file.
7269 *) Get rid of remaining C++-style comments which strict C compilers hate.
7270 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7272 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7273 compiled in by default: it has problems with large keys.
7276 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7277 DH private keys and/or callback functions which directly correspond to
7278 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7279 is needed for applications which have to configure certificates on a
7280 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7282 For the RSA certificate situation is makes no difference, but
7283 for the DSA certificate situation this fixes the "no shared cipher"
7284 problem where the OpenSSL cipher selection procedure failed because the
7285 temporary keys were not overtaken from the context and the API provided
7286 no way to reconfigure them.
7287 The new functions now let applications reconfigure the stuff and they
7288 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7289 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7290 non-public-API function ssl_cert_instantiate() is used as a helper
7291 function and also to reduce code redundancy inside ssl_rsa.c.
7292 [Ralf S. Engelschall]
7294 *) Move s_server -dcert and -dkey options out of the undocumented feature
7295 area because they are useful for the DSA situation and should be
7296 recognized by the users.
7297 [Ralf S. Engelschall]
7299 *) Fix the cipher decision scheme for export ciphers: the export bits are
7300 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7301 SSL_EXP_MASK. So, the original variable has to be used instead of the
7302 already masked variable.
7303 [Richard Levitte <levitte@stacken.kth.se>]
7305 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7306 [Richard Levitte <levitte@stacken.kth.se>]
7308 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7309 from `int' to `unsigned int' because it's a length and initialized by
7310 EVP_DigestFinal() which expects an `unsigned int *'.
7311 [Richard Levitte <levitte@stacken.kth.se>]
7313 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7314 script. Instead use the usual Shell->Perl transition trick.
7315 [Ralf S. Engelschall]
7317 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7318 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7319 -noout -modulus' as it's already the case for `openssl rsa -noout
7320 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7321 currently the public key is printed (a decision which was already done by
7322 `openssl dsa -modulus' in the past) which serves a similar purpose.
7323 Additionally the NO_RSA no longer completely removes the whole -modulus
7324 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7326 [Ralf S. Engelschall]
7328 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7329 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7330 [Arne Ansper <arne@ats.cyber.ee>]
7332 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7333 to be added. Now both 'req' and 'ca' can use new objects defined in the
7337 *) Add cool BIO that does syslog (or event log on NT).
7338 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7340 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7341 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7342 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7343 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7346 *) Add preliminary config info for new extension code.
7349 *) Make RSA_NO_PADDING really use no padding.
7350 [Ulf Moeller <ulf@fitug.de>]
7352 *) Generate errors when private/public key check is done.
7355 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7356 for some CRL extensions and new objects added.
7359 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7360 key usage extension and fuller support for authority key id.
7363 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7364 padding method for RSA, which is recommended for new applications in PKCS
7365 #1 v2.0 (RFC 2437, October 1998).
7366 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7367 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7368 against Bleichbacher's attack on RSA.
7369 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7372 *) Updates to the new SSL compression code
7373 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7375 *) Fix so that the version number in the master secret, when passed
7376 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7377 (because the server will not accept higher), that the version number
7378 is 0x03,0x01, not 0x03,0x00
7379 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7381 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7382 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7383 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7386 *) Support for RAW extensions where an arbitrary extension can be
7387 created by including its DER encoding. See apps/openssl.cnf for
7391 *) Make sure latest Perl versions don't interpret some generated C array
7392 code as Perl array code in the crypto/err/err_genc.pl script.
7393 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7395 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7396 not many people have the assembler. Various Win32 compilation fixes and
7397 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7401 *) Modify configure script 'Configure' to automatically create crypto/date.h
7402 file under Win32 and also build pem.h from pem.org. New script
7403 util/mkfiles.pl to create the MINFO file on environments that can't do a
7404 'make files': perl util/mkfiles.pl >MINFO should work.
7407 *) Major rework of DES function declarations, in the pursuit of correctness
7408 and purity. As a result, many evil casts evaporated, and some weirdness,
7409 too. You may find this causes warnings in your code. Zapping your evil
7410 casts will probably fix them. Mostly.
7413 *) Fix for a typo in asn1.h. Bug fix to object creation script
7414 obj_dat.pl. It considered a zero in an object definition to mean
7415 "end of object": none of the objects in objects.h have any zeros
7416 so it wasn't spotted.
7417 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7419 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7420 Masking (CBCM). In the absence of test vectors, the best I have been able
7421 to do is check that the decrypt undoes the encrypt, so far. Send me test
7422 vectors if you have them.
7425 *) Correct calculation of key length for export ciphers (too much space was
7426 allocated for null ciphers). This has not been tested!
7429 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7430 message is now correct (it understands "crypto" and "ssl" on its
7431 command line). There is also now an "update" option. This will update
7432 the util/ssleay.num and util/libeay.num files with any new functions.
7434 perl util/mkdef.pl crypto ssl update
7435 it will update them.
7438 *) Overhauled the Perl interface (perl/*):
7439 - ported BN stuff to OpenSSL's different BN library
7440 - made the perl/ source tree CVS-aware
7441 - renamed the package from SSLeay to OpenSSL (the files still contain
7442 their history because I've copied them in the repository)
7443 - removed obsolete files (the test scripts will be replaced
7444 by better Test::Harness variants in the future)
7445 [Ralf S. Engelschall]
7447 *) First cut for a very conservative source tree cleanup:
7448 1. merge various obsolete readme texts into doc/ssleay.txt
7449 where we collect the old documents and readme texts.
7450 2. remove the first part of files where I'm already sure that we no
7451 longer need them because of three reasons: either they are just temporary
7452 files which were left by Eric or they are preserved original files where
7453 I've verified that the diff is also available in the CVS via "cvs diff
7454 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7455 the crypto/md/ stuff).
7456 [Ralf S. Engelschall]
7458 *) More extension code. Incomplete support for subject and issuer alt
7459 name, issuer and authority key id. Change the i2v function parameters
7460 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7461 what that's for :-) Fix to ASN1 macro which messed up
7462 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7465 *) Preliminary support for ENUMERATED type. This is largely copied from the
7469 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7470 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7472 *) Make sure `make rehash' target really finds the `openssl' program.
7473 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7475 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7476 like to hear about it if this slows down other processors.
7479 *) Add CygWin32 platform information to Configure script.
7480 [Alan Batie <batie@aahz.jf.intel.com>]
7482 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7483 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7485 *) New program nseq to manipulate netscape certificate sequences
7488 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7492 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7493 but the BN code had some problems that would cause failures when
7494 doing certificate verification and some other functions.
7495 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7497 *) Add ASN1 and PEM code to support netscape certificate sequences.
7500 *) Add ASN1 and PEM code to support netscape certificate sequences.
7503 *) Add several PKIX and private extended key usage OIDs.
7506 *) Modify the 'ca' program to handle the new extension code. Modify
7507 openssl.cnf for new extension format, add comments.
7510 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7511 and add a sample to openssl.cnf so req -x509 now adds appropriate
7515 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7516 error code, add initial support to X509_print() and x509 application.
7519 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7520 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7521 stuff is currently isolated and isn't even compiled yet.
7524 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7525 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7526 Removed the versions check from X509 routines when loading extensions:
7527 this allows certain broken certificates that don't set the version
7528 properly to be processed.
7531 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7532 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7533 can still be regenerated with "make depend".
7536 *) Spelling mistake in C version of CAST-128.
7537 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7539 *) Changes to the error generation code. The perl script err-code.pl
7540 now reads in the old error codes and retains the old numbers, only
7541 adding new ones if necessary. It also only changes the .err files if new
7542 codes are added. The makefiles have been modified to only insert errors
7543 when needed (to avoid needlessly modifying header files). This is done
7544 by only inserting errors if the .err file is newer than the auto generated
7545 C file. To rebuild all the error codes from scratch (the old behaviour)
7546 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7547 or delete all the .err files.
7550 *) CAST-128 was incorrectly implemented for short keys. The C version has
7551 been fixed, but is untested. The assembler versions are also fixed, but
7552 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7553 to regenerate it if needed.
7554 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7555 Hagino <itojun@kame.net>]
7557 *) File was opened incorrectly in randfile.c.
7558 [Ulf Möller <ulf@fitug.de>]
7560 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7561 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7562 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7563 al: it's just almost always a UTCTime. Note this patch adds new error
7564 codes so do a "make errors" if there are problems.
7567 *) Correct Linux 1 recognition in config.
7568 [Ulf Möller <ulf@fitug.de>]
7570 *) Remove pointless MD5 hash when using DSA keys in ca.
7571 [Anonymous <nobody@replay.com>]
7573 *) Generate an error if given an empty string as a cert directory. Also
7574 generate an error if handed NULL (previously returned 0 to indicate an
7575 error, but didn't set one).
7576 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7578 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7581 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7582 parameters. This was causing a warning which killed off the Win32 compile.
7585 *) Remove C++ style comments from crypto/bn/bn_local.h.
7586 [Neil Costigan <neil.costigan@celocom.com>]
7588 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7589 based on a text string, looking up short and long names and finally
7590 "dot" format. The "dot" format stuff didn't work. Added new function
7591 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7592 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7593 OID is not part of the table.
7596 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7597 X509_LOOKUP_by_alias().
7600 *) Sort openssl functions by name.
7603 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7604 encryption from sample DSA keys (in case anyone is interested the password
7608 *) Make _all_ *_free functions accept a NULL pointer.
7609 [Frans Heymans <fheymans@isaserver.be>]
7611 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7613 [Anonymous <nobody@replay.com>]
7615 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7616 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7618 *) Don't blow it for numeric -newkey arguments to apps/req.
7619 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7621 *) Temp key "for export" tests were wrong in s3_srvr.c.
7622 [Anonymous <nobody@replay.com>]
7624 *) Add prototype for temp key callback functions
7625 SSL_CTX_set_tmp_{rsa,dh}_callback().
7628 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7629 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7632 *) X509_name_add_entry() freed the wrong thing after an error.
7633 [Arne Ansper <arne@ats.cyber.ee>]
7635 *) rsa_eay.c would attempt to free a NULL context.
7636 [Arne Ansper <arne@ats.cyber.ee>]
7638 *) BIO_s_socket() had a broken should_retry() on Windoze.
7639 [Arne Ansper <arne@ats.cyber.ee>]
7641 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7642 [Arne Ansper <arne@ats.cyber.ee>]
7644 *) Make sure the already existing X509_STORE->depth variable is initialized
7645 in X509_STORE_new(), but document the fact that this variable is still
7646 unused in the certificate verification process.
7647 [Ralf S. Engelschall]
7649 *) Fix the various library and apps files to free up pkeys obtained from
7650 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7653 *) Fix reference counting in X509_PUBKEY_get(). This makes
7654 demos/maurice/example2.c work, amongst others, probably.
7655 [Steve Henson and Ben Laurie]
7657 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7658 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7659 are no longer created. This way we have a single and consistent command
7660 line interface `openssl <command>', similar to `cvs <command>'.
7661 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7663 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7664 BIT STRING wrapper always have zero unused bits.
7667 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7670 *) Make the top-level INSTALL documentation easier to understand.
7673 *) Makefiles updated to exit if an error occurs in a sub-directory
7674 make (including if user presses ^C) [Paul Sutton]
7676 *) Make Montgomery context stuff explicit in RSA data structure.
7679 *) Fix build order of pem and err to allow for generated pem.h.
7682 *) Fix renumbering bug in X509_NAME_delete_entry().
7685 *) Enhanced the err-ins.pl script so it makes the error library number
7686 global and can add a library name. This is needed for external ASN1 and
7687 other error libraries.
7690 *) Fixed sk_insert which never worked properly.
7693 *) Fix ASN1 macros so they can handle indefinite length construted
7694 EXPLICIT tags. Some non standard certificates use these: they can now
7698 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7699 into a single doc/ssleay.txt bundle. This way the information is still
7700 preserved but no longer messes up this directory. Now it's new room for
7701 the new set of documenation files.
7702 [Ralf S. Engelschall]
7704 *) SETs were incorrectly DER encoded. This was a major pain, because they
7705 shared code with SEQUENCEs, which aren't coded the same. This means that
7706 almost everything to do with SETs or SEQUENCEs has either changed name or
7707 number of arguments.
7708 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7710 *) Fix test data to work with the above.
7713 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7714 was already fixed by Eric for 0.9.1 it seems.
7715 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7717 *) Autodetect FreeBSD3.
7720 *) Fix various bugs in Configure. This affects the following platforms:
7724 unixware-2.0-pentium
7728 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7729 before they are needed.
7732 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7736 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7738 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7739 changed SSLeay to OpenSSL in version strings.
7740 [Ralf S. Engelschall]
7742 *) Some fixups to the top-level documents.
7745 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7746 because the symlink to include/ was missing.
7747 [Ralf S. Engelschall]
7749 *) Incorporated the popular no-RSA/DSA-only patches
7750 which allow to compile a RSA-free SSLeay.
7751 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7753 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7754 when "ssleay" is still not found.
7755 [Ralf S. Engelschall]
7757 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7758 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7760 *) Updated the README file.
7761 [Ralf S. Engelschall]
7763 *) Added various .cvsignore files in the CVS repository subdirs
7764 to make a "cvs update" really silent.
7765 [Ralf S. Engelschall]
7767 *) Recompiled the error-definition header files and added
7768 missing symbols to the Win32 linker tables.
7769 [Ralf S. Engelschall]
7771 *) Cleaned up the top-level documents;
7772 o new files: CHANGES and LICENSE
7773 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7774 o merged COPYRIGHT into LICENSE
7775 o removed obsolete TODO file
7776 o renamed MICROSOFT to INSTALL.W32
7777 [Ralf S. Engelschall]
7779 *) Removed dummy files from the 0.9.1b source tree:
7780 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7781 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7782 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7783 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7784 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7785 [Ralf S. Engelschall]
7787 *) Added various platform portability fixes.
7790 *) The Genesis of the OpenSSL rpject:
7791 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7792 Young and Tim J. Hudson created while they were working for C2Net until
7794 [The OpenSSL Project]
7797 Changes between 0.9.0b and 0.9.1b [not released]
7799 *) Updated a few CA certificates under certs/
7802 *) Changed some BIGNUM api stuff.
7805 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7806 DGUX x86, Linux Alpha, etc.
7809 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7810 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7814 *) Add -strparse option to asn1pars program which parses nested
7816 [Dr Stephen Henson <shenson@bigfoot.com>]
7818 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7821 *) DSA fix for "ca" program.
7824 *) Added "-genkey" option to "dsaparam" program.
7827 *) Added RIPE MD160 (rmd160) message digest.
7830 *) Added -a (all) option to "ssleay version" command.
7833 *) Added PLATFORM define which is the id given to Configure.
7836 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7839 *) Extended the ASN.1 parser routines.
7842 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7845 *) Added a BN_CTX to the BN library.
7848 *) Fixed the weak key values in DES library
7851 *) Changed API in EVP library for cipher aliases.
7854 *) Added support for RC2/64bit cipher.
7857 *) Converted the lhash library to the crypto/mem.c functions.
7860 *) Added more recognized ASN.1 object ids.
7863 *) Added more RSA padding checks for SSL/TLS.
7866 *) Added BIO proxy/filter functionality.
7869 *) Added extra_certs to SSL_CTX which can be used
7870 send extra CA certificates to the client in the CA cert chain sending
7871 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7874 *) Now Fortezza is denied in the authentication phase because
7875 this is key exchange mechanism is not supported by SSLeay at all.
7878 *) Additional PKCS1 checks.
7881 *) Support the string "TLSv1" for all TLS v1 ciphers.
7884 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7885 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7888 *) Fixed a few memory leaks.
7891 *) Fixed various code and comment typos.
7894 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7895 bytes sent in the client random.
7896 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob