5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
8 for the psk identity [hint] and the psk callback functions to the
9 SSL_SESSION, SSL and SSL_CTX structure.
12 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
16 SSL_CTX_use_psk_identity_hint
17 SSL_get_psk_identity_hint
19 SSL_use_psk_identity_hint
21 [Mika Kousa and Pasi Eronen of Nokia Corporation]
23 *) Add RFC 3161 compliant time stamp request creation, response generation
24 and response verification functionality.
25 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
27 *) Add initial support for TLS extensions, specifically for the server_name
28 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
29 have new members for a host name. The SSL data structure has an
30 additional member SSL_CTX *initial_ctx so that new sessions can be
31 stored in that context to allow for session resumption, even after the
32 SSL has been switched to a new SSL_CTX in reaction to a client's
33 server_name extension.
35 New functions (subject to change):
38 SSL_get_servername_type()
41 New CTRL codes and macros (subject to change):
43 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
44 - SSL_CTX_set_tlsext_servername_callback()
45 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
46 - SSL_CTX_set_tlsext_servername_arg()
47 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
49 openssl s_client has a new '-servername ...' option.
51 openssl s_server has new options '-servername_host ...', '-cert2 ...',
52 '-key2 ...', '-servername_fatal' (subject to change). This allows
53 testing the HostName extension for a specific single host name ('-cert'
54 and '-key' remain fallbacks for handshakes without HostName
55 negotiation). If the unrecogninzed_name alert has to be sent, this by
56 default is a warning; it becomes fatal with the '-servername_fatal'
59 [Peter Sylvester, Remy Allais, Christophe Renou]
61 *) Whirlpool hash implementation is added.
64 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
65 bn(64,32). Because of instruction set limitations it doesn't have
66 any negative impact on performance. This was done mostly in order
67 to make it possible to share assembler modules, such as bn_mul_mont
68 implementations, between 32- and 64-bit builds without hassle.
71 *) Disable rogue ciphersuites:
73 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
74 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
75 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
77 The latter two were purportedly from
78 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
81 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
82 remain enabled for now, but are just as unofficial, and the ID
83 has long expired; these will probably disappear soon.
86 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
87 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
91 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
92 dedicated Montgomery multiplication procedure, is introduced.
93 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
94 "64-bit" performance on certain 32-bit targets.
97 *) New option SSL_OP_NO_COMP to disable use of compression selectively
98 in SSL structures. New SSL ctrl to set maximum send fragment size.
99 Save memory by seeting the I/O buffer sizes dynamically instead of
100 using the maximum available value.
103 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
104 in addition to the text details.
107 *) Very, very preliminary EXPERIMENTAL support for printing of general
108 ASN1 structures. This currently produces rather ugly output and doesn't
109 handle several customised structures at all.
112 *) Integrated support for PVK file format and some related formats such
113 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
114 these in the 'rsa' and 'dsa' utilities.
117 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
120 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
121 place for the (very old) "NETSCAPE" format certificates which are now
122 handled using new ASN1 code equivalents.
125 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
126 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
127 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
130 *) Modify CRL distribution points extension code to print out previously
131 unsupported fields. Enhance extension setting code to allow setting of
135 *) Add print and set support for Issuing Distribution Point CRL extension.
138 Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
140 *) Link in manifests for VC++ if needed.
141 [Austin Ziegler <halostatue@gmail.com>]
143 *) Update support for ECC-based TLS ciphersuites according to
144 draft-ietf-tls-ecc-12.txt with proposed changes.
147 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
148 opaque EVP_CIPHER_CTX handling.
151 *) Fixes and enhancements to zlib compression code. We now only use
152 "zlib1.dll" and use the default __cdecl calling convention on Win32
153 to conform with the standards mentioned here:
154 http://www.zlib.net/DLL_FAQ.txt
155 Static zlib linking now works on Windows and the new --with-zlib-include
156 --with-zlib-lib options to Configure can be used to supply the location
157 of the headers and library. Gracefully handle case where zlib library
161 *) Several fixes and enhancements to the OID generation code. The old code
162 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
163 handle numbers larger than ULONG_MAX, truncated printing and had a
164 non standard OBJ_obj2txt() behaviour.
167 *) Add support for building of engines under engine/ as shared libraries
168 under VC++ build system.
171 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
172 Hopefully, we will not see any false combination of paths any more.
175 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
177 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
178 (part of SSL_OP_ALL). This option used to disable the
179 countermeasure against man-in-the-middle protocol-version
180 rollback in the SSL 2.0 server implementation, which is a bad
181 idea. (CVE-2005-2969)
183 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
184 for Information Security, National Institute of Advanced Industrial
185 Science and Technology [AIST], Japan)]
187 *) Add two function to clear and return the verify parameter flags.
190 *) Keep cipherlists sorted in the source instead of sorting them at
191 runtime, thus removing the need for a lock.
194 *) Avoid some small subgroup attacks in Diffie-Hellman.
195 [Nick Mathewson and Ben Laurie]
197 *) Add functions for well-known primes.
200 *) Extended Windows CE support.
201 [Satoshi Nakamura and Andy Polyakov]
203 *) Initialize SSL_METHOD structures at compile time instead of during
204 runtime, thus removing the need for a lock.
207 *) Make PKCS7_decrypt() work even if no certificate is supplied by
208 attempting to decrypt each encrypted key in turn. Add support to
212 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
214 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
217 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
218 key into the same file any more.
221 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
224 *) Add -utf8 command line and config file option to 'ca'.
225 [Stefan <stf@udoma.org]
227 *) Removed the macro des_crypt(), as it seems to conflict with some
228 libraries. Use DES_crypt().
231 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
232 involves renaming the source and generated shared-libs for
233 both. The engines will accept the corrected or legacy ids
234 ('ncipher' and '4758_cca' respectively) when binding. NB,
235 this only applies when building 'shared'.
236 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
238 *) Add attribute functions to EVP_PKEY structure. Modify
239 PKCS12_create() to recognize a CSP name attribute and
240 use it. Make -CSP option work again in pkcs12 utility.
243 *) Add new functionality to the bn blinding code:
244 - automatic re-creation of the BN_BLINDING parameters after
245 a fixed number of uses (currently 32)
246 - add new function for parameter creation
247 - introduce flags to control the update behaviour of the
248 BN_BLINDING parameters
249 - hide BN_BLINDING structure
250 Add a second BN_BLINDING slot to the RSA structure to improve
251 performance when a single RSA object is shared among several
255 *) Add support for DTLS.
256 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
258 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
259 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
262 *) Remove buggy and incompletet DH cert support from
263 ssl/ssl_rsa.c and ssl/s3_both.c
266 *) Use SHA-1 instead of MD5 as the default digest algorithm for
267 the apps/openssl applications.
270 *) Compile clean with "-Wall -Wmissing-prototypes
271 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
272 DEBUG_SAFESTACK must also be set.
275 *) Change ./Configure so that certain algorithms can be disabled by default.
276 The new counterpiece to "no-xxx" is "enable-xxx".
278 The patented RC5 and MDC2 algorithms will now be disabled unless
279 "enable-rc5" and "enable-mdc2", respectively, are specified.
281 (IDEA remains enabled despite being patented. This is because IDEA
282 is frequently required for interoperability, and there is no license
283 fee for non-commercial use. As before, "no-idea" can be used to
284 avoid this algorithm.)
288 *) Add processing of proxy certificates (see RFC 3820). This work was
289 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
290 EGEE (Enabling Grids for E-science in Europe).
293 *) RC4 performance overhaul on modern architectures/implementations, such
294 as Intel P4, IA-64 and AMD64.
297 *) New utility extract-section.pl. This can be used specify an alternative
298 section number in a pod file instead of having to treat each file as
299 a separate case in Makefile. This can be done by adding two lines to the
302 =for comment openssl_section:XXX
304 The blank line is mandatory.
308 *) New arguments -certform, -keyform and -pass for s_client and s_server
309 to allow alternative format key and certificate files and passphrase
313 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
314 update associated structures and add various utility functions.
316 Add new policy related verify parameters, include policy checking in
317 standard verify code. Enhance 'smime' application with extra parameters
318 to support policy checking and print out.
321 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
322 Nehemiah processors. These extensions support AES encryption in hardware
323 as well as RNG (though RNG support is currently disabled).
324 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
326 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
329 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
330 [Andy Polyakov and a number of other people]
332 *) Improved PowerPC platform support. Most notably BIGNUM assembler
333 implementation contributed by IBM.
334 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
336 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
337 exponent rather than 'unsigned long'. There is a corresponding change to
338 the new 'rsa_keygen' element of the RSA_METHOD structure.
339 [Jelte Jansen, Geoff Thorpe]
341 *) Functionality for creating the initial serial number file is now
342 moved from CA.pl to the 'ca' utility with a new option -create_serial.
344 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
345 number file to 1, which is bound to cause problems. To avoid
346 the problems while respecting compatibility between different 0.9.7
347 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
348 CA.pl for serial number initialization. With the new release 0.9.8,
349 we can fix the problem directly in the 'ca' utility.)
352 *) Reduced header interdepencies by declaring more opaque objects in
353 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
354 give fewer recursive includes, which could break lazy source code - so
355 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
356 developers should define this symbol when building and using openssl to
357 ensure they track the recommended behaviour, interfaces, [etc], but
358 backwards-compatible behaviour prevails when this isn't defined.
361 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
364 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
365 This will generate a random key of the appropriate length based on the
366 cipher context. The EVP_CIPHER can provide its own random key generation
367 routine to support keys of a specific form. This is used in the des and
368 3des routines to generate a key of the correct parity. Update S/MIME
369 code to use new functions and hence generate correct parity DES keys.
370 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
371 valid (weak or incorrect parity).
374 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
375 as looking them up. This is useful when the verified structure may contain
376 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
377 present unless the new PKCS7_NO_CRL flag is asserted.
380 *) Extend ASN1 oid configuration module. It now additionally accepts the
383 shortName = some long name, 1.2.3.4
386 *) Reimplemented the BN_CTX implementation. There is now no more static
387 limitation on the number of variables it can handle nor the depth of the
388 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
389 information can now expand as required, and rather than having a single
390 static array of bignums, BN_CTX now uses a linked-list of such arrays
391 allowing it to expand on demand whilst maintaining the usefulness of
395 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
396 to allow all RSA operations to function using a single BN_CTX.
399 *) Preliminary support for certificate policy evaluation and checking. This
400 is initially intended to pass the tests outlined in "Conformance Testing
401 of Relying Party Client Certificate Path Processing Logic" v1.07.
404 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
405 remained unused and not that useful. A variety of other little bignum
406 tweaks and fixes have also been made continuing on from the audit (see
410 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
411 associated ASN1, EVP and SSL functions and old ASN1 macros.
414 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
415 and this should never fail. So the return value from the use of
416 BN_set_word() (which can fail due to needless expansion) is now deprecated;
417 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
420 *) BN_CTX_get() should return zero-valued bignums, providing the same
421 initialised value as BN_new().
422 [Geoff Thorpe, suggested by Ulf Möller]
424 *) Support for inhibitAnyPolicy certificate extension.
427 *) An audit of the BIGNUM code is underway, for which debugging code is
428 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
429 is considered valid when processing BIGNUMs, and causes execution to
430 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
431 further steps are taken to deliberately pollute unused data in BIGNUM
432 structures to try and expose faulty code further on. For now, openssl will
433 (in its default mode of operation) continue to tolerate the inconsistent
434 forms that it has tolerated in the past, but authors and packagers should
435 consider trying openssl and their own applications when compiled with
436 these debugging symbols defined. It will help highlight potential bugs in
437 their own code, and will improve the test coverage for OpenSSL itself. At
438 some point, these tighter rules will become openssl's default to improve
439 maintainability, though the assert()s and other overheads will remain only
440 in debugging configurations. See bn.h for more details.
441 [Geoff Thorpe, Nils Larsch, Ulf Möller]
443 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
444 that can only be obtained through BN_CTX_new() (which implicitly
445 initialises it). The presence of this function only made it possible
446 to overwrite an existing structure (and cause memory leaks).
449 *) Because of the callback-based approach for implementing LHASH as a
450 template type, lh_insert() adds opaque objects to hash-tables and
451 lh_doall() or lh_doall_arg() are typically used with a destructor callback
452 to clean up those corresponding objects before destroying the hash table
453 (and losing the object pointers). So some over-zealous constifications in
454 LHASH have been relaxed so that lh_insert() does not take (nor store) the
455 objects as "const" and the lh_doall[_arg] callback wrappers are not
456 prototyped to have "const" restrictions on the object pointers they are
457 given (and so aren't required to cast them away any more).
460 *) The tmdiff.h API was so ugly and minimal that our own timing utility
461 (speed) prefers to use its own implementation. The two implementations
462 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
463 its object type properly exposed (MS_TM) instead of casting to/from "char
464 *". This may still change yet if someone realises MS_TM and "ms_time_***"
465 aren't necessarily the greatest nomenclatures - but this is what was used
466 internally to the implementation so I've used that for now.
469 *) Ensure that deprecated functions do not get compiled when
470 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
471 the self-tests were still using deprecated key-generation functions so
472 these have been updated also.
475 *) Reorganise PKCS#7 code to separate the digest location functionality
476 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
477 New function PKCS7_set_digest() to set the digest type for PKCS#7
478 digestedData type. Add additional code to correctly generate the
479 digestedData type and add support for this type in PKCS7 initialization
483 *) New function PKCS7_set0_type_other() this initializes a PKCS7
484 structure of type "other".
487 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
488 sure the loop does correctly stop and breaking ("division by zero")
489 modulus operations are not performed. The (pre-generated) prime
490 table crypto/bn/bn_prime.h was already correct, but it could not be
491 re-generated on some platforms because of the "division by zero"
492 situation in the script.
493 [Ralf S. Engelschall]
495 *) Update support for ECC-based TLS ciphersuites according to
496 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
497 SHA-1 now is only used for "small" curves (where the
498 representation of a field element takes up to 24 bytes); for
499 larger curves, the field element resulting from ECDH is directly
500 used as premaster secret.
501 [Douglas Stebila (Sun Microsystems Laboratories)]
503 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
504 curve secp160r1 to the tests.
505 [Douglas Stebila (Sun Microsystems Laboratories)]
507 *) Add the possibility to load symbols globally with DSO.
508 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
510 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
511 control of the error stack.
514 *) Add support for STORE in ENGINE.
517 *) Add the STORE type. The intention is to provide a common interface
518 to certificate and key stores, be they simple file-based stores, or
519 HSM-type store, or LDAP stores, or...
520 NOTE: The code is currently UNTESTED and isn't really used anywhere.
523 *) Add a generic structure called OPENSSL_ITEM. This can be used to
524 pass a list of arguments to any function as well as provide a way
525 for a function to pass data back to the caller.
528 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
529 works like BUF_strdup() but can be used to duplicate a portion of
530 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
534 *) Add the function sk_find_ex() which works like sk_find(), but will
535 return an index to an element even if an exact match couldn't be
536 found. The index is guaranteed to point at the element where the
537 searched-for key would be inserted to preserve sorting order.
540 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
541 takes an extra flags argument for optional functionality. Currently,
542 the following flags are defined:
544 OBJ_BSEARCH_VALUE_ON_NOMATCH
545 This one gets OBJ_bsearch_ex() to return a pointer to the first
546 element where the comparing function returns a negative or zero
549 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
550 This one gets OBJ_bsearch_ex() to return a pointer to the first
551 element where the comparing function returns zero. This is useful
552 if there are more than one element where the comparing function
556 *) Make it possible to create self-signed certificates with 'openssl ca'
557 in such a way that the self-signed certificate becomes part of the
558 CA database and uses the same mechanisms for serial number generation
559 as all other certificate signing. The new flag '-selfsign' enables
560 this functionality. Adapt CA.sh and CA.pl.in.
563 *) Add functionality to check the public key of a certificate request
564 against a given private. This is useful to check that a certificate
565 request can be signed by that key (self-signing).
568 *) Make it possible to have multiple active certificates with the same
569 subject in the CA index file. This is done only if the keyword
570 'unique_subject' is set to 'no' in the main CA section (default
571 if 'CA_default') of the configuration file. The value is saved
572 with the database itself in a separate index attribute file,
573 named like the index file with '.attr' appended to the name.
576 *) Generate muti valued AVAs using '+' notation in config files for
580 *) Support for nameConstraints certificate extension.
583 *) Support for policyConstraints certificate extension.
586 *) Support for policyMappings certificate extension.
589 *) Make sure the default DSA_METHOD implementation only uses its
590 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
591 and change its own handlers to be NULL so as to remove unnecessary
592 indirection. This lets alternative implementations fallback to the
593 default implementation more easily.
596 *) Support for directoryName in GeneralName related extensions
600 *) Make it possible to link applications using Makefile.shared.
601 Make that possible even when linking against static libraries!
604 *) Support for single pass processing for S/MIME signing. This now
605 means that S/MIME signing can be done from a pipe, in addition
606 cleartext signing (multipart/signed type) is effectively streaming
607 and the signed data does not need to be all held in memory.
609 This is done with a new flag PKCS7_STREAM. When this flag is set
610 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
611 is done after the data is output (and digests calculated) in
615 *) Add full support for -rpath/-R, both in shared libraries and
616 applications, at least on the platforms where it's known how
620 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
621 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
622 will now compute a table of multiples of the generator that
623 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
624 faster (notably in the case of a single point multiplication,
626 [Nils Larsch, Bodo Moeller]
628 *) IPv6 support for certificate extensions. The various extensions
629 which use the IP:a.b.c.d can now take IPv6 addresses using the
630 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
634 *) Added an ENGINE that implements RSA by performing private key
635 exponentiations with the GMP library. The conversions to and from
636 GMP's mpz_t format aren't optimised nor are any montgomery forms
637 cached, and on x86 it appears OpenSSL's own performance has caught up.
638 However there are likely to be other architectures where GMP could
639 provide a boost. This ENGINE is not built in by default, but it can be
640 specified at Configure time and should be accompanied by the necessary
641 linker additions, eg;
642 ./config -DOPENSSL_USE_GMP -lgmp
645 *) "openssl engine" will not display ENGINE/DSO load failure errors when
646 testing availability of engines with "-t" - the old behaviour is
647 produced by increasing the feature's verbosity with "-tt".
650 *) ECDSA routines: under certain error conditions uninitialized BN objects
651 could be freed. Solution: make sure initialization is performed early
652 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
656 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
657 and DH_METHOD (eg. by ENGINE implementations) to override the normal
658 software implementations. For DSA and DH, parameter generation can
659 also be overriden by providing the appropriate method callbacks.
662 *) Change the "progress" mechanism used in key-generation and
663 primality testing to functions that take a new BN_GENCB pointer in
664 place of callback/argument pairs. The new API functions have "_ex"
665 postfixes and the older functions are reimplemented as wrappers for
666 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
667 declarations of the old functions to help (graceful) attempts to
668 migrate to the new functions. Also, the new key-generation API
669 functions operate on a caller-supplied key-structure and return
670 success/failure rather than returning a key or NULL - this is to
671 help make "keygen" another member function of RSA_METHOD etc.
673 Example for using the new callback interface:
675 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
679 BN_GENCB_set(&my_cb, my_callback, my_arg);
681 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
682 /* For the meaning of a, b in calls to my_callback(), see the
683 * documentation of the function that calls the callback.
684 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
685 * my_callback should return 1 if it wants BN_is_prime_ex()
686 * to continue, or 0 to stop.
691 *) Change the ZLIB compression method to be stateful, and make it
692 available to TLS with the number defined in
693 draft-ietf-tls-compression-04.txt.
696 *) Add the ASN.1 structures and functions for CertificatePair, which
697 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
699 CertificatePair ::= SEQUENCE {
700 forward [0] Certificate OPTIONAL,
701 reverse [1] Certificate OPTIONAL,
702 -- at least one of the pair shall be present -- }
704 Also implement the PEM functions to read and write certificate
705 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
707 This needed to be defined, mostly for the sake of the LDAP
708 attribute crossCertificatePair, but may prove useful elsewhere as
712 *) Make it possible to inhibit symlinking of shared libraries in
713 Makefile.shared, for Cygwin's sake.
716 *) Extend the BIGNUM API by creating a function
717 void BN_set_negative(BIGNUM *a, int neg);
718 and a macro that behave like
719 int BN_is_negative(const BIGNUM *a);
721 to avoid the need to access 'a->neg' directly in applications.
724 *) Implement fast modular reduction for pseudo-Mersenne primes
725 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
726 EC_GROUP_new_curve_GFp() will now automatically use this
728 [Nils Larsch <nla@trustcenter.de>]
730 *) Add new lock type (CRYPTO_LOCK_BN).
733 *) Change the ENGINE framework to automatically load engines
734 dynamically from specific directories unless they could be
735 found to already be built in or loaded. Move all the
736 current engines except for the cryptodev one to a new
738 The engines in engines/ are built as shared libraries if
739 the "shared" options was given to ./Configure or ./config.
740 Otherwise, they are inserted in libcrypto.a.
741 /usr/local/ssl/engines is the default directory for dynamic
742 engines, but that can be overriden at configure time through
743 the usual use of --prefix and/or --openssldir, and at run
744 time with the environment variable OPENSSL_ENGINES.
745 [Geoff Thorpe and Richard Levitte]
747 *) Add Makefile.shared, a helper makefile to build shared
748 libraries. Addapt Makefile.org.
751 *) Add version info to Win32 DLLs.
752 [Peter 'Luna' Runestig" <peter@runestig.com>]
754 *) Add new 'medium level' PKCS#12 API. Certificates and keys
755 can be added using this API to created arbitrary PKCS#12
756 files while avoiding the low level API.
758 New options to PKCS12_create(), key or cert can be NULL and
759 will then be omitted from the output file. The encryption
760 algorithm NIDs can be set to -1 for no encryption, the mac
761 iteration count can be set to 0 to omit the mac.
763 Enhance pkcs12 utility by making the -nokeys and -nocerts
764 options work when creating a PKCS#12 file. New option -nomac
765 to omit the mac, NONE can be set for an encryption algorithm.
766 New code is modified to use the enhanced PKCS12_create()
767 instead of the low level API.
770 *) Extend ASN1 encoder to support indefinite length constructed
771 encoding. This can output sequences tags and octet strings in
772 this form. Modify pk7_asn1.c to support indefinite length
773 encoding. This is experimental and needs additional code to
774 be useful, such as an ASN1 bio and some enhanced streaming
777 Extend template encode functionality so that tagging is passed
778 down to the template encoder.
781 *) Let 'openssl req' fail if an argument to '-newkey' is not
782 recognized instead of using RSA as a default.
785 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
786 As these are not official, they are not included in "ALL";
787 the "ECCdraft" ciphersuite group alias can be used to select them.
788 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
790 *) Add ECDH engine support.
791 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
793 *) Add ECDH in new directory crypto/ecdh/.
794 [Douglas Stebila (Sun Microsystems Laboratories)]
796 *) Let BN_rand_range() abort with an error after 100 iterations
797 without success (which indicates a broken PRNG).
800 *) Change BN_mod_sqrt() so that it verifies that the input value
801 is really the square of the return value. (Previously,
802 BN_mod_sqrt would show GIGO behaviour.)
805 *) Add named elliptic curves over binary fields from X9.62, SECG,
806 and WAP/WTLS; add OIDs that were still missing.
808 [Sheueling Chang Shantz and Douglas Stebila
809 (Sun Microsystems Laboratories)]
811 *) Extend the EC library for elliptic curves over binary fields
812 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
815 EC_GF2m_simple_method
819 EC_GROUP_new_curve_GF2m
820 EC_GROUP_set_curve_GF2m
821 EC_GROUP_get_curve_GF2m
822 EC_POINT_set_affine_coordinates_GF2m
823 EC_POINT_get_affine_coordinates_GF2m
824 EC_POINT_set_compressed_coordinates_GF2m
826 Point compression for binary fields is disabled by default for
827 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
830 As binary polynomials are represented as BIGNUMs, various members
831 of the EC_GROUP and EC_POINT data structures can be shared
832 between the implementations for prime fields and binary fields;
833 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
834 are essentially identical to their ..._GFp counterparts.
835 (For simplicity, the '..._GFp' prefix has been dropped from
836 various internal method names.)
838 An internal 'field_div' method (similar to 'field_mul' and
839 'field_sqr') has been added; this is used only for binary fields.
841 [Sheueling Chang Shantz and Douglas Stebila
842 (Sun Microsystems Laboratories)]
844 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
845 through methods ('mul', 'precompute_mult').
847 The generic implementations (now internally called 'ec_wNAF_mul'
848 and 'ec_wNAF_precomputed_mult') remain the default if these
849 methods are undefined.
851 [Sheueling Chang Shantz and Douglas Stebila
852 (Sun Microsystems Laboratories)]
854 *) New function EC_GROUP_get_degree, which is defined through
855 EC_METHOD. For curves over prime fields, this returns the bit
856 length of the modulus.
858 [Sheueling Chang Shantz and Douglas Stebila
859 (Sun Microsystems Laboratories)]
861 *) New functions EC_GROUP_dup, EC_POINT_dup.
862 (These simply call ..._new and ..._copy).
864 [Sheueling Chang Shantz and Douglas Stebila
865 (Sun Microsystems Laboratories)]
867 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
868 Polynomials are represented as BIGNUMs (where the sign bit is not
869 used) in the following functions [macros]:
872 BN_GF2m_sub [= BN_GF2m_add]
873 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
874 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
875 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
877 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
878 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
879 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
880 BN_GF2m_cmp [= BN_ucmp]
882 (Note that only the 'mod' functions are actually for fields GF(2^m).
883 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
885 For some functions, an the irreducible polynomial defining a
886 field can be given as an 'unsigned int[]' with strictly
887 decreasing elements giving the indices of those bits that are set;
888 i.e., p[] represents the polynomial
889 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
891 p[0] > p[1] > ... > p[k] = 0.
892 This applies to the following functions:
897 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
898 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
901 BN_GF2m_mod_solve_quad_arr
905 Conversion can be performed by the following functions:
910 bntest.c has additional tests for binary polynomial arithmetic.
912 Two implementations for BN_GF2m_mod_div() are available.
913 The default algorithm simply uses BN_GF2m_mod_inv() and
914 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
915 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
916 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
918 [Sheueling Chang Shantz and Douglas Stebila
919 (Sun Microsystems Laboratories)]
921 *) Add new error code 'ERR_R_DISABLED' that can be used when some
922 functionality is disabled at compile-time.
923 [Douglas Stebila <douglas.stebila@sun.com>]
925 *) Change default behaviour of 'openssl asn1parse' so that more
926 information is visible when viewing, e.g., a certificate:
928 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
929 mode the content of non-printable OCTET STRINGs is output in a
930 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
931 avoid the appearance of a printable string.
932 [Nils Larsch <nla@trustcenter.de>]
934 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
936 EC_GROUP_set_asn1_flag()
937 EC_GROUP_get_asn1_flag()
938 EC_GROUP_set_point_conversion_form()
939 EC_GROUP_get_point_conversion_form()
940 These control ASN1 encoding details:
941 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
942 has been set to OPENSSL_EC_NAMED_CURVE.
943 - Points are encoded in uncompressed form by default; options for
944 asn1_for are as for point2oct, namely
945 POINT_CONVERSION_COMPRESSED
946 POINT_CONVERSION_UNCOMPRESSED
947 POINT_CONVERSION_HYBRID
949 Also add 'seed' and 'seed_len' members to EC_GROUP with access
953 EC_GROUP_get_seed_len()
954 This is used only for ASN1 purposes (so far).
955 [Nils Larsch <nla@trustcenter.de>]
957 *) Add 'field_type' member to EC_METHOD, which holds the NID
958 of the appropriate field type OID. The new function
959 EC_METHOD_get_field_type() returns this value.
960 [Nils Larsch <nla@trustcenter.de>]
967 providing useful interfaces to EC_POINT_point2oct() and
968 EC_POINT_oct2point().
969 [Nils Larsch <nla@trustcenter.de>]
971 *) Change internals of the EC library so that the functions
972 EC_GROUP_set_generator()
973 EC_GROUP_get_generator()
975 EC_GROUP_get_cofactor()
976 are implemented directly in crypto/ec/ec_lib.c and not dispatched
977 to methods, which would lead to unnecessary code duplication when
978 adding different types of curves.
979 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
981 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
982 arithmetic, and such that modified wNAFs are generated
983 (which avoid length expansion in many cases).
986 *) Add a function EC_GROUP_check_discriminant() (defined via
987 EC_METHOD) that verifies that the curve discriminant is non-zero.
989 Add a function EC_GROUP_check() that makes some sanity tests
990 on a EC_GROUP, its generator and order. This includes
991 EC_GROUP_check_discriminant().
992 [Nils Larsch <nla@trustcenter.de>]
994 *) Add ECDSA in new directory crypto/ecdsa/.
996 Add applications 'openssl ecparam' and 'openssl ecdsa'
997 (these are based on 'openssl dsaparam' and 'openssl dsa').
999 ECDSA support is also included in various other files across the
1000 library. Most notably,
1001 - 'openssl req' now has a '-newkey ecdsa:file' option;
1002 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1003 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1004 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1005 them suitable for ECDSA where domain parameters must be
1006 extracted before the specific public key;
1007 - ECDSA engine support has been added.
1008 [Nils Larsch <nla@trustcenter.de>]
1010 *) Include some named elliptic curves, and add OIDs from X9.62,
1011 SECG, and WAP/WTLS. Each curve can be obtained from the new
1013 EC_GROUP_new_by_curve_name(),
1014 and the list of available named curves can be obtained with
1015 EC_get_builtin_curves().
1016 Also add a 'curve_name' member to EC_GROUP objects, which can be
1018 EC_GROUP_set_curve_name()
1019 EC_GROUP_get_curve_name()
1020 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1022 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1023 was actually never needed) and in BN_mul(). The removal in BN_mul()
1024 required a small change in bn_mul_part_recursive() and the addition
1025 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1026 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1027 bn_sub_words() and bn_add_words() except they take arrays with
1031 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1033 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1034 The value now differs depending on if you build for FIPS or not.
1035 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1036 safely run with a non-FIPSed libcrypto, as it may crash because of
1037 the difference induced by this change.
1040 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1042 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1043 (part of SSL_OP_ALL). This option used to disable the
1044 countermeasure against man-in-the-middle protocol-version
1045 rollback in the SSL 2.0 server implementation, which is a bad
1046 idea. (CVE-2005-2969)
1048 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1049 for Information Security, National Institute of Advanced Industrial
1050 Science and Technology [AIST], Japan)]
1052 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1053 mainly for FIPS compliance and not fully integrated at this stage.
1056 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1057 the exponentiation using a fixed-length exponent. (Otherwise,
1058 the information leaked through timing could expose the secret key
1059 after many signatures; cf. Bleichenbacher's attack on DSA with
1063 *) Make a new fixed-window mod_exp implementation the default for
1064 RSA, DSA, and DH private-key operations so that the sequence of
1065 squares and multiplies and the memory access pattern are
1066 independent of the particular secret key. This will mitigate
1067 cache-timing and potential related attacks.
1069 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1070 and this is automatically used by BN_mod_exp_mont() if the new flag
1071 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1072 will use this BN flag for private exponents unless the flag
1073 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1074 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1076 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1078 *) Change the client implementation for SSLv23_method() and
1079 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1080 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1081 (Previously, the SSL 2.0 backwards compatible Client Hello
1082 message format would be used even with SSL_OP_NO_SSLv2.)
1085 *) Add support for smime-type MIME parameter in S/MIME messages which some
1089 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1090 a threadsafe manner. Modify rsa code to use new function and add calls
1091 to dsa and dh code (which had race conditions before).
1094 *) Include the fixed error library code in the C error file definitions
1095 instead of fixing them up at runtime. This keeps the error code
1096 structures constant.
1099 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1101 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1104 *) Fixes for newer kerberos headers. NB: the casts are needed because
1105 the 'length' field is signed on one version and unsigned on another
1106 with no (?) obvious way to tell the difference, without these VC++
1107 complains. Also the "definition" of FAR (blank) is no longer included
1108 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1109 some needed definitions.
1112 *) Undo Cygwin change.
1115 *) Added support for proxy certificates according to RFC 3820.
1116 Because they may be a security thread to unaware applications,
1117 they must be explicitely allowed in run-time. See
1118 docs/HOWTO/proxy_certificates.txt for further information.
1121 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1123 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1124 server and client random values. Previously
1125 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1126 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1128 This change has negligible security impact because:
1130 1. Server and client random values still have 24 bytes of pseudo random
1133 2. Server and client random values are sent in the clear in the initial
1136 3. The master secret is derived using the premaster secret (48 bytes in
1137 size for static RSA ciphersuites) as well as client server and random
1140 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1143 [Stephen Henson, reported by UK NISCC]
1145 *) Use Windows randomness collection on Cygwin.
1148 *) Fix hang in EGD/PRNGD query when communication socket is closed
1149 prematurely by EGD/PRNGD.
1150 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1152 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1155 *) Back-port of selected performance improvements from development
1156 branch, as well as improved support for PowerPC platforms.
1159 *) Add lots of checks for memory allocation failure, error codes to indicate
1160 failure and freeing up memory if a failure occurs.
1161 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1163 *) Add new -passin argument to dgst.
1166 *) Perform some character comparisons of different types in X509_NAME_cmp:
1167 this is needed for some certificates that reencode DNs into UTF8Strings
1168 (in violation of RFC3280) and can't or wont issue name rollover
1172 *) Make an explicit check during certificate validation to see that
1173 the CA setting in each certificate on the chain is correct. As a
1174 side effect always do the following basic checks on extensions,
1175 not just when there's an associated purpose to the check:
1177 - if there is an unhandled critical extension (unless the user
1178 has chosen to ignore this fault)
1179 - if the path length has been exceeded (if one is set at all)
1180 - that certain extensions fit the associated purpose (if one has
1184 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1186 *) Avoid a race condition when CRLs are checked in a multi threaded
1187 environment. This would happen due to the reordering of the revoked
1188 entries during signature checking and serial number lookup. Now the
1189 encoding is cached and the serial number sort performed under a lock.
1190 Add new STACK function sk_is_sorted().
1193 *) Add Delta CRL to the extension code.
1196 *) Various fixes to s3_pkt.c so alerts are sent properly.
1197 [David Holmes <d.holmes@f5.com>]
1199 *) Reduce the chances of duplicate issuer name and serial numbers (in
1200 violation of RFC3280) using the OpenSSL certificate creation utilities.
1201 This is done by creating a random 64 bit value for the initial serial
1202 number when a serial number file is created or when a self signed
1203 certificate is created using 'openssl req -x509'. The initial serial
1204 number file is created using 'openssl x509 -next_serial' in CA.pl
1205 rather than being initialized to 1.
1208 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1210 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1211 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1212 [Joe Orton, Steve Henson]
1214 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1216 [Joe Orton, Steve Henson]
1218 *) Make it possible to have multiple active certificates with the same
1219 subject in the CA index file. This is done only if the keyword
1220 'unique_subject' is set to 'no' in the main CA section (default
1221 if 'CA_default') of the configuration file. The value is saved
1222 with the database itself in a separate index attribute file,
1223 named like the index file with '.attr' appended to the name.
1226 *) X509 verify fixes. Disable broken certificate workarounds when
1227 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1228 keyUsage extension present. Don't accept CRLs with unhandled critical
1229 extensions: since verify currently doesn't process CRL extensions this
1230 rejects a CRL with *any* critical extensions. Add new verify error codes
1234 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1235 A clarification of RFC2560 will require the use of OCTET STRINGs and
1236 some implementations cannot handle the current raw format. Since OpenSSL
1237 copies and compares OCSP nonces as opaque blobs without any attempt at
1238 parsing them this should not create any compatibility issues.
1241 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1242 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1243 this HMAC (and other) operations are several times slower than OpenSSL
1247 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1248 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1250 *) Use the correct content when signing type "other".
1253 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1255 *) Fix various bugs revealed by running the NISCC test suite:
1257 Stop out of bounds reads in the ASN1 code when presented with
1258 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1260 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1262 If verify callback ignores invalid public key errors don't try to check
1263 certificate signature with the NULL public key.
1267 *) New -ignore_err option in ocsp application to stop the server
1268 exiting on the first error in a request.
1271 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1272 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1276 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1277 extra data after the compression methods not only for TLS 1.0
1278 but also for SSL 3.0 (as required by the specification).
1279 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1281 *) Change X509_certificate_type() to mark the key as exported/exportable
1282 when it's 512 *bits* long, not 512 bytes.
1285 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1286 blocks during encryption.
1289 *) Various fixes to base64 BIO and non blocking I/O. On write
1290 flushes were not handled properly if the BIO retried. On read
1291 data was not being buffered properly and had various logic bugs.
1292 This also affects blocking I/O when the data being decoded is a
1296 *) Various S/MIME bugfixes and compatibility changes:
1297 output correct application/pkcs7 MIME type if
1298 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1299 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1300 of files as .eml work). Correctly handle very long lines in MIME
1304 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1306 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1307 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1308 a protocol version number mismatch like a decryption error
1309 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1312 *) Turn on RSA blinding by default in the default implementation
1313 to avoid a timing attack. Applications that don't want it can call
1314 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1315 They would be ill-advised to do so in most cases.
1316 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1318 *) Change RSA blinding code so that it works when the PRNG is not
1319 seeded (in this case, the secret RSA exponent is abused as
1320 an unpredictable seed -- if it is not unpredictable, there
1321 is no point in blinding anyway). Make RSA blinding thread-safe
1322 by remembering the creator's thread ID in rsa->blinding and
1323 having all other threads use local one-time blinding factors
1324 (this requires more computation than sharing rsa->blinding, but
1325 avoids excessive locking; and if an RSA object is not shared
1326 between threads, blinding will still be very fast).
1329 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1330 ENGINE as defaults for all supported algorithms irrespective of
1331 the 'flags' parameter. 'flags' is now honoured, so applications
1332 should make sure they are passing it correctly.
1335 *) Target "mingw" now allows native Windows code to be generated in
1336 the Cygwin environment as well as with the MinGW compiler.
1339 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1341 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1342 via timing by performing a MAC computation even if incorrrect
1343 block cipher padding has been found. This is a countermeasure
1344 against active attacks where the attacker has to distinguish
1345 between bad padding and a MAC verification error. (CVE-2003-0078)
1347 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1348 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1349 Martin Vuagnoux (EPFL, Ilion)]
1351 *) Make the no-err option work as intended. The intention with no-err
1352 is not to have the whole error stack handling routines removed from
1353 libcrypto, it's only intended to remove all the function name and
1354 reason texts, thereby removing some of the footprint that may not
1355 be interesting if those errors aren't displayed anyway.
1357 NOTE: it's still possible for any application or module to have it's
1358 own set of error texts inserted. The routines are there, just not
1359 used by default when no-err is given.
1362 *) Add support for FreeBSD on IA64.
1363 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1365 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1366 Kerberos function mit_des_cbc_cksum(). Before this change,
1367 the value returned by DES_cbc_cksum() was like the one from
1368 mit_des_cbc_cksum(), except the bytes were swapped.
1369 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1371 *) Allow an application to disable the automatic SSL chain building.
1372 Before this a rather primitive chain build was always performed in
1373 ssl3_output_cert_chain(): an application had no way to send the
1374 correct chain if the automatic operation produced an incorrect result.
1376 Now the chain builder is disabled if either:
1378 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1380 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1382 The reasoning behind this is that an application would not want the
1383 auto chain building to take place if extra chain certificates are
1384 present and it might also want a means of sending no additional
1385 certificates (for example the chain has two certificates and the
1389 *) Add the possibility to build without the ENGINE framework.
1390 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1392 *) Under Win32 gmtime() can return NULL: check return value in
1393 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1396 *) DSA routines: under certain error conditions uninitialized BN objects
1397 could be freed. Solution: make sure initialization is performed early
1398 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1399 Nils Larsch <nla@trustcenter.de> via PR#459)
1402 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1403 checked on reconnect on the client side, therefore session resumption
1404 could still fail with a "ssl session id is different" error. This
1405 behaviour is masked when SSL_OP_ALL is used due to
1406 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1407 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1408 followup to PR #377.
1411 *) IA-32 assembler support enhancements: unified ELF targets, support
1412 for SCO/Caldera platforms, fix for Cygwin shared build.
1415 *) Add support for FreeBSD on sparc64. As a consequence, support for
1416 FreeBSD on non-x86 processors is separate from x86 processors on
1417 the config script, much like the NetBSD support.
1418 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1420 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1422 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1425 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1426 code (06) was taken as the first octet of the session ID and the last
1427 octet was ignored consequently. As a result SSLv2 client side session
1428 caching could not have worked due to the session ID mismatch between
1430 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1434 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1435 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1439 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1440 seems that in spite of existing for more than a year, many application
1441 author have done nothing to provide the necessary callbacks, which
1442 means that this particular engine will not work properly anywhere.
1443 This is a very unfortunate situation which forces us, in the name
1444 of usability, to give the hw_ncipher.c a static lock, which is part
1446 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1447 appear in 0.9.8 or later. We EXPECT application authors to have
1448 dealt properly with this when 0.9.8 is released (unless we actually
1449 make such changes in the libcrypto locking code that changes will
1450 have to be made anyway).
1453 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1454 octets have been read, EOF or an error occurs. Without this change
1455 some truncated ASN1 structures will not produce an error.
1458 *) Disable Heimdal support, since it hasn't been fully implemented.
1459 Still give the possibility to force the use of Heimdal, but with
1460 warnings and a request that patches get sent to openssl-dev.
1463 *) Add the VC-CE target, introduce the WINCE sysname, and add
1464 INSTALL.WCE and appropriate conditionals to make it build.
1465 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1467 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1468 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1469 edit numbers of the version.
1470 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1472 *) Introduce safe string copy and catenation functions
1473 (BUF_strlcpy() and BUF_strlcat()).
1474 [Ben Laurie (CHATS) and Richard Levitte]
1476 *) Avoid using fixed-size buffers for one-line DNs.
1477 [Ben Laurie (CHATS)]
1479 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1480 resizing buffers containing secrets, and use where appropriate.
1481 [Ben Laurie (CHATS)]
1483 *) Avoid using fixed size buffers for configuration file location.
1484 [Ben Laurie (CHATS)]
1486 *) Avoid filename truncation for various CA files.
1487 [Ben Laurie (CHATS)]
1489 *) Use sizeof in preference to magic numbers.
1490 [Ben Laurie (CHATS)]
1492 *) Avoid filename truncation in cert requests.
1493 [Ben Laurie (CHATS)]
1495 *) Add assertions to check for (supposedly impossible) buffer
1497 [Ben Laurie (CHATS)]
1499 *) Don't cache truncated DNS entries in the local cache (this could
1500 potentially lead to a spoofing attack).
1501 [Ben Laurie (CHATS)]
1503 *) Fix various buffers to be large enough for hex/decimal
1504 representations in a platform independent manner.
1505 [Ben Laurie (CHATS)]
1507 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1508 resizing buffers containing secrets, and use where appropriate.
1509 [Ben Laurie (CHATS)]
1511 *) Add BIO_indent() to avoid much slightly worrying code to do
1513 [Ben Laurie (CHATS)]
1515 *) Convert sprintf()/BIO_puts() to BIO_printf().
1516 [Ben Laurie (CHATS)]
1518 *) buffer_gets() could terminate with the buffer only half
1520 [Ben Laurie (CHATS)]
1522 *) Add assertions to prevent user-supplied crypto functions from
1523 overflowing internal buffers by having large block sizes, etc.
1524 [Ben Laurie (CHATS)]
1526 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1528 [Ben Laurie (CHATS)]
1530 *) Eliminate unused copy of key in RC4.
1531 [Ben Laurie (CHATS)]
1533 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1534 [Ben Laurie (CHATS)]
1536 *) Fix off-by-one error in EGD path.
1537 [Ben Laurie (CHATS)]
1539 *) If RANDFILE path is too long, ignore instead of truncating.
1540 [Ben Laurie (CHATS)]
1542 *) Eliminate unused and incorrectly sized X.509 structure
1544 [Ben Laurie (CHATS)]
1546 *) Eliminate unused and dangerous function knumber().
1547 [Ben Laurie (CHATS)]
1549 *) Eliminate unused and dangerous structure, KSSL_ERR.
1550 [Ben Laurie (CHATS)]
1552 *) Protect against overlong session ID context length in an encoded
1553 session object. Since these are local, this does not appear to be
1555 [Ben Laurie (CHATS)]
1557 *) Change from security patch (see 0.9.6e below) that did not affect
1558 the 0.9.6 release series:
1560 Remote buffer overflow in SSL3 protocol - an attacker could
1561 supply an oversized master key in Kerberos-enabled versions.
1563 [Ben Laurie (CHATS)]
1565 *) Change the SSL kerb5 codes to match RFC 2712.
1568 *) Make -nameopt work fully for req and add -reqopt switch.
1569 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1571 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1572 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1574 *) Make sure tests can be performed even if the corresponding algorithms
1575 have been removed entirely. This was also the last step to make
1576 OpenSSL compilable with DJGPP under all reasonable conditions.
1577 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1579 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1580 to allow version independent disabling of normally unselected ciphers,
1581 which may be activated as a side-effect of selecting a single cipher.
1583 (E.g., cipher list string "RSA" enables ciphersuites that are left
1584 out of "ALL" because they do not provide symmetric encryption.
1585 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1586 [Lutz Jaenicke, Bodo Moeller]
1588 *) Add appropriate support for separate platform-dependent build
1589 directories. The recommended way to make a platform-dependent
1590 build directory is the following (tested on Linux), maybe with
1593 # Place yourself outside of the OpenSSL source tree. In
1594 # this example, the environment variable OPENSSL_SOURCE
1595 # is assumed to contain the absolute OpenSSL source directory.
1596 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1597 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1598 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1599 mkdir -p `dirname $F`
1600 ln -s $OPENSSL_SOURCE/$F $F
1603 To be absolutely sure not to disturb the source tree, a "make clean"
1604 is a good thing. If it isn't successfull, don't worry about it,
1605 it probably means the source directory is very clean.
1608 *) Make sure any ENGINE control commands make local copies of string
1609 pointers passed to them whenever necessary. Otherwise it is possible
1610 the caller may have overwritten (or deallocated) the original string
1611 data when a later ENGINE operation tries to use the stored values.
1612 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1614 *) Improve diagnostics in file reading and command-line digests.
1615 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1617 *) Add AES modes CFB and OFB to the object database. Correct an
1618 error in AES-CFB decryption.
1621 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1622 allows existing EVP_CIPHER_CTX structures to be reused after
1623 calling EVP_*Final(). This behaviour is used by encryption
1624 BIOs and some applications. This has the side effect that
1625 applications must explicitly clean up cipher contexts with
1626 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1629 *) Check the values of dna and dnb in bn_mul_recursive before calling
1630 bn_mul_comba (a non zero value means the a or b arrays do not contain
1631 n2 elements) and fallback to bn_mul_normal if either is not zero.
1634 *) Fix escaping of non-ASCII characters when using the -subj option
1635 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1638 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1639 form for "surname", serialNumber has no short form.
1640 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1641 therefore remove "mail" short name for "internet 7".
1642 The OID for unique identifiers in X509 certificates is
1643 x500UniqueIdentifier, not uniqueIdentifier.
1644 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1647 *) Add an "init" command to the ENGINE config module and auto initialize
1648 ENGINEs. Without any "init" command the ENGINE will be initialized
1649 after all ctrl commands have been executed on it. If init=1 the
1650 ENGINE is initailized at that point (ctrls before that point are run
1651 on the uninitialized ENGINE and after on the initialized one). If
1652 init=0 then the ENGINE will not be iniatialized at all.
1655 *) Fix the 'app_verify_callback' interface so that the user-defined
1656 argument is actually passed to the callback: In the
1657 SSL_CTX_set_cert_verify_callback() prototype, the callback
1658 declaration has been changed from
1661 int (*cb)(X509_STORE_CTX *,void *);
1662 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1663 i=s->ctx->app_verify_callback(&ctx)
1664 has been changed into
1665 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1667 To update applications using SSL_CTX_set_cert_verify_callback(),
1668 a dummy argument can be added to their callback functions.
1669 [D. K. Smetters <smetters@parc.xerox.com>]
1671 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1672 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1674 *) Add and OPENSSL_LOAD_CONF define which will cause
1675 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1676 This allows older applications to transparently support certain
1677 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1678 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1679 load the config file and OPENSSL_add_all_algorithms_conf() which will
1680 always load it have also been added.
1683 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1684 Adjust NIDs and EVP layer.
1685 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1687 *) Config modules support in openssl utility.
1689 Most commands now load modules from the config file,
1690 though in a few (such as version) this isn't done
1691 because it couldn't be used for anything.
1693 In the case of ca and req the config file used is
1694 the same as the utility itself: that is the -config
1695 command line option can be used to specify an
1699 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1700 use "openssl_conf" if filename is NULL use default openssl config file.
1703 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1704 config section name. Add a new flag to tolerate a missing config file
1705 and move code to CONF_modules_load_file().
1708 *) Support for crypto accelerator cards from Accelerated Encryption
1709 Processing, www.aep.ie. (Use engine 'aep')
1710 The support was copied from 0.9.6c [engine] and adapted/corrected
1711 to work with the new engine framework.
1712 [AEP Inc. and Richard Levitte]
1714 *) Support for SureWare crypto accelerator cards from Baltimore
1715 Technologies. (Use engine 'sureware')
1716 The support was copied from 0.9.6c [engine] and adapted
1717 to work with the new engine framework.
1720 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1721 make the newer ENGINE framework commands for the CHIL engine work.
1722 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1724 *) Make it possible to produce shared libraries on ReliantUNIX.
1725 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1727 *) Add the configuration target debug-linux-ppro.
1728 Make 'openssl rsa' use the general key loading routines
1729 implemented in apps.c, and make those routines able to
1730 handle the key format FORMAT_NETSCAPE and the variant
1732 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1734 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1735 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1737 *) Add -keyform to rsautl, and document -engine.
1738 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1740 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1741 BIO_R_NO_SUCH_FILE error code rather than the generic
1742 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1745 *) Add new functions
1747 ERR_peek_last_error_line
1748 ERR_peek_last_error_line_data.
1749 These are similar to
1752 ERR_peek_error_line_data,
1753 but report on the latest error recorded rather than the first one
1754 still in the error queue.
1755 [Ben Laurie, Bodo Moeller]
1757 *) default_algorithms option in ENGINE config module. This allows things
1759 default_algorithms = ALL
1760 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1763 *) Prelminary ENGINE config module.
1766 *) New experimental application configuration code.
1769 *) Change the AES code to follow the same name structure as all other
1770 symmetric ciphers, and behave the same way. Move everything to
1771 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1772 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1774 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1775 [Ben Laurie and Theo de Raadt]
1777 *) Add option to output public keys in req command.
1778 [Massimiliano Pala madwolf@openca.org]
1780 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1781 (up to about 10% better than before for P-192 and P-224).
1784 *) New functions/macros
1786 SSL_CTX_set_msg_callback(ctx, cb)
1787 SSL_CTX_set_msg_callback_arg(ctx, arg)
1788 SSL_set_msg_callback(ssl, cb)
1789 SSL_set_msg_callback_arg(ssl, arg)
1791 to request calling a callback function
1793 void cb(int write_p, int version, int content_type,
1794 const void *buf, size_t len, SSL *ssl, void *arg)
1796 whenever a protocol message has been completely received
1797 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1798 protocol version according to which the SSL library interprets
1799 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1800 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1801 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1802 specification (change_cipher_spec(20), alert(21), handshake(22)).
1803 'buf' and 'len' point to the actual message, 'ssl' to the
1804 SSL object, and 'arg' is the application-defined value set by
1805 SSL[_CTX]_set_msg_callback_arg().
1807 'openssl s_client' and 'openssl s_server' have new '-msg' options
1808 to enable a callback that displays all protocol messages.
1811 *) Change the shared library support so shared libraries are built as
1812 soon as the corresponding static library is finished, and thereby get
1813 openssl and the test programs linked against the shared library.
1814 This still only happens when the keyword "shard" has been given to
1815 the configuration scripts.
1817 NOTE: shared library support is still an experimental thing, and
1818 backward binary compatibility is still not guaranteed.
1819 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1821 *) Add support for Subject Information Access extension.
1822 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1824 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1825 additional bytes when new memory had to be allocated, not just
1826 when reusing an existing buffer.
1829 *) New command line and configuration option 'utf8' for the req command.
1830 This allows field values to be specified as UTF8 strings.
1833 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1834 runs for the former and machine-readable output for the latter.
1837 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1838 of the e-mail address in the DN (i.e., it will go into a certificate
1839 extension only). The new configuration file option 'email_in_dn = no'
1840 has the same effect.
1841 [Massimiliano Pala madwolf@openca.org]
1843 *) Change all functions with names starting with des_ to be starting
1844 with DES_ instead. Add wrappers that are compatible with libdes,
1845 but are named _ossl_old_des_*. Finally, add macros that map the
1846 des_* symbols to the corresponding _ossl_old_des_* if libdes
1847 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1848 desired, the des_* symbols will be mapped to DES_*, with one
1851 Since we provide two compatibility mappings, the user needs to
1852 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1853 compatibility is desired. The default (i.e., when that macro
1854 isn't defined) is OpenSSL 0.9.6c compatibility.
1856 There are also macros that enable and disable the support of old
1857 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1858 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1859 are defined, the default will apply: to support the old des routines.
1861 In either case, one must include openssl/des.h to get the correct
1862 definitions. Do not try to just include openssl/des_old.h, that
1865 NOTE: This is a major break of an old API into a new one. Software
1866 authors are encouraged to switch to the DES_ style functions. Some
1867 time in the future, des_old.h and the libdes compatibility functions
1868 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1869 default), and then completely removed.
1872 *) Test for certificates which contain unsupported critical extensions.
1873 If such a certificate is found during a verify operation it is
1874 rejected by default: this behaviour can be overridden by either
1875 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1876 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1877 X509_supported_extension() has also been added which returns 1 if a
1878 particular extension is supported.
1881 *) Modify the behaviour of EVP cipher functions in similar way to digests
1882 to retain compatibility with existing code.
1885 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1886 compatibility with existing code. In particular the 'ctx' parameter does
1887 not have to be to be initialized before the call to EVP_DigestInit() and
1888 it is tidied up after a call to EVP_DigestFinal(). New function
1889 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1890 EVP_MD_CTX_copy() changed to not require the destination to be
1891 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1892 requires the destination to be valid.
1894 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1895 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1898 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1899 so that complete 'Handshake' protocol structures are kept in memory
1900 instead of overwriting 'msg_type' and 'length' with 'body' data.
1903 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1904 [Massimo Santin via Richard Levitte]
1906 *) Major restructuring to the underlying ENGINE code. This includes
1907 reduction of linker bloat, separation of pure "ENGINE" manipulation
1908 (initialisation, etc) from functionality dealing with implementations
1909 of specific crypto iterfaces. This change also introduces integrated
1910 support for symmetric ciphers and digest implementations - so ENGINEs
1911 can now accelerate these by providing EVP_CIPHER and EVP_MD
1912 implementations of their own. This is detailed in crypto/engine/README
1913 as it couldn't be adequately described here. However, there are a few
1914 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1915 were changed in the original introduction of ENGINE code have now
1916 reverted back - the hooking from this code to ENGINE is now a good
1917 deal more passive and at run-time, operations deal directly with
1918 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1919 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1920 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1921 they were not being used by the framework as there is no concept of a
1922 BIGNUM_METHOD and they could not be generalised to the new
1923 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1924 ENGINE_cpy() has been removed as it cannot be consistently defined in
1928 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1931 *) Change mkdef.pl to sort symbols that get the same entry number,
1932 and make sure the automatically generated functions ERR_load_*
1933 become part of libeay.num as well.
1936 *) New function SSL_renegotiate_pending(). This returns true once
1937 renegotiation has been requested (either SSL_renegotiate() call
1938 or HelloRequest/ClientHello receveived from the peer) and becomes
1939 false once a handshake has been completed.
1940 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1941 sends a HelloRequest, but does not ensure that a handshake takes
1942 place. SSL_renegotiate_pending() is useful for checking if the
1943 client has followed the request.)
1946 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1947 By default, clients may request session resumption even during
1948 renegotiation (if session ID contexts permit); with this option,
1949 session resumption is possible only in the first handshake.
1951 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1952 more bits available for options that should not be part of
1953 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1956 *) Add some demos for certificate and certificate request creation.
1959 *) Make maximum certificate chain size accepted from the peer application
1960 settable (SSL*_get/set_max_cert_list()), as proposed by
1961 "Douglas E. Engert" <deengert@anl.gov>.
1964 *) Add support for shared libraries for Unixware-7
1965 (Boyd Lynn Gerber <gerberb@zenez.com>).
1968 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1969 be done prior to destruction. Use this to unload error strings from
1970 ENGINEs that load their own error strings. NB: This adds two new API
1971 functions to "get" and "set" this destroy handler in an ENGINE.
1974 *) Alter all existing ENGINE implementations (except "openssl" and
1975 "openbsd") to dynamically instantiate their own error strings. This
1976 makes them more flexible to be built both as statically-linked ENGINEs
1977 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1978 Also, add stub code to each that makes building them as self-contained
1979 shared-libraries easier (see README.ENGINE).
1982 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1983 implementations into applications that are completely implemented in
1984 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1985 commands that can be used to configure what shared-library to load and
1986 to control aspects of the way it is handled. Also, made an update to
1987 the README.ENGINE file that brings its information up-to-date and
1988 provides some information and instructions on the "dynamic" ENGINE
1989 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1992 *) Make it possible to unload ranges of ERR strings with a new
1993 "ERR_unload_strings" function.
1996 *) Add a copy() function to EVP_MD.
1999 *) Make EVP_MD routines take a context pointer instead of just the
2000 md_data void pointer.
2003 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2004 that the digest can only process a single chunk of data
2005 (typically because it is provided by a piece of
2006 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2007 is only going to provide a single chunk of data, and hence the
2008 framework needn't accumulate the data for oneshot drivers.
2011 *) As with "ERR", make it possible to replace the underlying "ex_data"
2012 functions. This change also alters the storage and management of global
2013 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2014 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2015 index counters. The API functions that use this state have been changed
2016 to take a "class_index" rather than pointers to the class's local STACK
2017 and counter, and there is now an API function to dynamically create new
2018 classes. This centralisation allows us to (a) plug a lot of the
2019 thread-safety problems that existed, and (b) makes it possible to clean
2020 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2021 such data would previously have always leaked in application code and
2022 workarounds were in place to make the memory debugging turn a blind eye
2023 to it. Application code that doesn't use this new function will still
2024 leak as before, but their memory debugging output will announce it now
2025 rather than letting it slide.
2027 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2028 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2029 has a return value to indicate success or failure.
2032 *) Make it possible to replace the underlying "ERR" functions such that the
2033 global state (2 LHASH tables and 2 locks) is only used by the "default"
2034 implementation. This change also adds two functions to "get" and "set"
2035 the implementation prior to it being automatically set the first time
2036 any other ERR function takes place. Ie. an application can call "get",
2037 pass the return value to a module it has just loaded, and that module
2038 can call its own "set" function using that value. This means the
2039 module's "ERR" operations will use (and modify) the error state in the
2040 application and not in its own statically linked copy of OpenSSL code.
2043 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2044 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2045 the operation, and provides a more encapsulated way for external code
2046 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2047 to use these functions rather than manually incrementing the counts.
2049 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2052 *) Add EVP test program.
2055 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2058 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2059 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2060 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2061 These allow a CRL to be built without having to access X509_CRL fields
2062 directly. Modify 'ca' application to use new functions.
2065 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2066 bug workarounds. Rollback attack detection is a security feature.
2067 The problem will only arise on OpenSSL servers when TLSv1 is not
2068 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2069 Software authors not wanting to support TLSv1 will have special reasons
2070 for their choice and can explicitly enable this option.
2071 [Bodo Moeller, Lutz Jaenicke]
2073 *) Rationalise EVP so it can be extended: don't include a union of
2074 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2075 (similar to those existing for EVP_CIPHER_CTX).
2080 EVP_MD_CTX_init(&md); /* new function call */
2081 EVP_DigestInit(&md, EVP_sha1());
2082 EVP_DigestUpdate(&md, in, len);
2083 EVP_DigestFinal(&md, out, NULL);
2084 EVP_MD_CTX_cleanup(&md); /* new function call */
2088 *) Make DES key schedule conform to the usual scheme, as well as
2089 correcting its structure. This means that calls to DES functions
2090 now have to pass a pointer to a des_key_schedule instead of a
2091 plain des_key_schedule (which was actually always a pointer
2094 des_key_schedule ks;
2096 des_set_key_checked(..., &ks);
2097 des_ncbc_encrypt(..., &ks, ...);
2099 (Note that a later change renames 'des_...' into 'DES_...'.)
2102 *) Initial reduction of linker bloat: the use of some functions, such as
2103 PEM causes large amounts of unused functions to be linked in due to
2104 poor organisation. For example pem_all.c contains every PEM function
2105 which has a knock on effect of linking in large amounts of (unused)
2106 ASN1 code. Grouping together similar functions and splitting unrelated
2107 functions prevents this.
2110 *) Cleanup of EVP macros.
2113 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2114 correct _ecb suffix.
2117 *) Add initial OCSP responder support to ocsp application. The
2118 revocation information is handled using the text based index
2119 use by the ca application. The responder can either handle
2120 requests generated internally, supplied in files (for example
2121 via a CGI script) or using an internal minimal server.
2124 *) Add configuration choices to get zlib compression for TLS.
2127 *) Changes to Kerberos SSL for RFC 2712 compliance:
2128 1. Implemented real KerberosWrapper, instead of just using
2129 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2130 2. Implemented optional authenticator field of KerberosWrapper.
2132 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2133 and authenticator structs; see crypto/krb5/.
2135 Generalized Kerberos calls to support multiple Kerberos libraries.
2136 [Vern Staats <staatsvr@asc.hpc.mil>,
2137 Jeffrey Altman <jaltman@columbia.edu>
2138 via Richard Levitte]
2140 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2141 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2142 values for each of the key sizes rather than having just
2143 parameters (and 'speed' generating keys each time).
2146 *) Speed up EVP routines.
2149 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2150 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2151 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2152 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2154 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2155 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2156 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2159 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2161 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2164 *) Added the OS2-EMX target.
2165 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2167 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2168 to support NCONF routines in extension code. New function CONF_set_nconf()
2169 to allow functions which take an NCONF to also handle the old LHASH
2170 structure: this means that the old CONF compatible routines can be
2171 retained (in particular wrt extensions) without having to duplicate the
2172 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2175 *) Enhance the general user interface with mechanisms for inner control
2176 and with possibilities to have yes/no kind of prompts.
2179 *) Change all calls to low level digest routines in the library and
2180 applications to use EVP. Add missing calls to HMAC_cleanup() and
2181 don't assume HMAC_CTX can be copied using memcpy().
2182 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2184 *) Add the possibility to control engines through control names but with
2185 arbitrary arguments instead of just a string.
2186 Change the key loaders to take a UI_METHOD instead of a callback
2187 function pointer. NOTE: this breaks binary compatibility with earlier
2188 versions of OpenSSL [engine].
2189 Adapt the nCipher code for these new conditions and add a card insertion
2193 *) Enhance the general user interface with mechanisms to better support
2194 dialog box interfaces, application-defined prompts, the possibility
2195 to use defaults (for example default passwords from somewhere else)
2196 and interrupts/cancellations.
2199 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2200 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2203 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2204 tidy up some unnecessarily weird code in 'sk_new()').
2205 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2207 *) Change the key loading routines for ENGINEs to use the same kind
2208 callback (pem_password_cb) as all other routines that need this
2212 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2213 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2214 than this minimum value is recommended.
2217 *) New random seeder for OpenVMS, using the system process statistics
2218 that are easily reachable.
2221 *) Windows apparently can't transparently handle global
2222 variables defined in DLLs. Initialisations such as:
2224 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2226 wont compile. This is used by the any applications that need to
2227 declare their own ASN1 modules. This was fixed by adding the option
2228 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2229 needed for static libraries under Win32.
2232 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2233 setting of purpose and trust fields. New X509_STORE trust and
2234 purpose functions and tidy up setting in other SSL functions.
2237 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2238 structure. These are inherited by X509_STORE_CTX when it is
2239 initialised. This allows various defaults to be set in the
2240 X509_STORE structure (such as flags for CRL checking and custom
2241 purpose or trust settings) for functions which only use X509_STORE_CTX
2242 internally such as S/MIME.
2244 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2245 trust settings if they are not set in X509_STORE. This allows X509_STORE
2246 purposes and trust (in S/MIME for example) to override any set by default.
2248 Add command line options for CRL checking to smime, s_client and s_server
2252 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2253 are set then the CRL is looked up in the X509_STORE structure and
2254 its validity and signature checked, then if the certificate is found
2255 in the CRL the verify fails with a revoked error.
2257 Various new CRL related callbacks added to X509_STORE_CTX structure.
2259 Command line options added to 'verify' application to support this.
2261 This needs some additional work, such as being able to handle multiple
2262 CRLs with different times, extension based lookup (rather than just
2263 by subject name) and ultimately more complete V2 CRL extension
2267 *) Add a general user interface API (crypto/ui/). This is designed
2268 to replace things like des_read_password and friends (backward
2269 compatibility functions using this new API are provided).
2270 The purpose is to remove prompting functions from the DES code
2271 section as well as provide for prompting through dialog boxes in
2272 a window system and the like.
2275 *) Add "ex_data" support to ENGINE so implementations can add state at a
2276 per-structure level rather than having to store it globally.
2279 *) Make it possible for ENGINE structures to be copied when retrieved by
2280 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2281 This causes the "original" ENGINE structure to act like a template,
2282 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2283 operational state can be localised to each ENGINE structure, despite the
2284 fact they all share the same "methods". New ENGINE structures returned in
2285 this case have no functional references and the return value is the single
2286 structural reference. This matches the single structural reference returned
2287 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2291 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2292 needs to match any other type at all we need to manually clear the
2296 *) Changes to the "openssl engine" utility to include;
2297 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2298 about an ENGINE's available control commands.
2299 - executing control commands from command line arguments using the
2300 '-pre' and '-post' switches. '-post' is only used if '-t' is
2301 specified and the ENGINE is successfully initialised. The syntax for
2302 the individual commands are colon-separated, for example;
2303 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2306 *) New dynamic control command support for ENGINEs. ENGINEs can now
2307 declare their own commands (numbers), names (strings), descriptions,
2308 and input types for run-time discovery by calling applications. A
2309 subset of these commands are implicitly classed as "executable"
2310 depending on their input type, and only these can be invoked through
2311 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2312 can be based on user input, config files, etc). The distinction is
2313 that "executable" commands cannot return anything other than a boolean
2314 result and can only support numeric or string input, whereas some
2315 discoverable commands may only be for direct use through
2316 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2317 pointers, or other custom uses. The "executable" commands are to
2318 support parameterisations of ENGINE behaviour that can be
2319 unambiguously defined by ENGINEs and used consistently across any
2320 OpenSSL-based application. Commands have been added to all the
2321 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2322 control over shared-library paths without source code alterations.
2325 *) Changed all ENGINE implementations to dynamically allocate their
2326 ENGINEs rather than declaring them statically. Apart from this being
2327 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2328 this also allows the implementations to compile without using the
2329 internal engine_int.h header.
2332 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2333 'const' value. Any code that should be able to modify a RAND_METHOD
2334 should already have non-const pointers to it (ie. they should only
2335 modify their own ones).
2338 *) Made a variety of little tweaks to the ENGINE code.
2339 - "atalla" and "ubsec" string definitions were moved from header files
2340 to C code. "nuron" string definitions were placed in variables
2341 rather than hard-coded - allowing parameterisation of these values
2342 later on via ctrl() commands.
2343 - Removed unused "#if 0"'d code.
2344 - Fixed engine list iteration code so it uses ENGINE_free() to release
2345 structural references.
2346 - Constified the RAND_METHOD element of ENGINE structures.
2347 - Constified various get/set functions as appropriate and added
2348 missing functions (including a catch-all ENGINE_cpy that duplicates
2349 all ENGINE values onto a new ENGINE except reference counts/state).
2350 - Removed NULL parameter checks in get/set functions. Setting a method
2351 or function to NULL is a way of cancelling out a previously set
2352 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2353 and doesn't justify the extra error symbols and code.
2354 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2355 flags from engine_int.h to engine.h.
2356 - Changed prototypes for ENGINE handler functions (init(), finish(),
2357 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2360 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2361 to the algorithm using long division. The binary algorithm can be
2362 used only if the modulus is odd. On 32-bit systems, it is faster
2363 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2364 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2365 up to 450 bits. In 64-bit environments, the binary algorithm
2366 appears to be advantageous for much longer moduli; here we use it
2367 for moduli up to 2048 bits.
2370 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2371 could not support the combine flag in choice fields.
2374 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2375 extensions from a certificate request to the certificate.
2378 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2379 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2380 file: this allows the display of the certificate about to be
2381 signed to be customised, to allow certain fields to be included
2382 or excluded and extension details. The old system didn't display
2383 multicharacter strings properly, omitted fields not in the policy
2384 and couldn't display additional details such as extensions.
2387 *) Function EC_POINTs_mul for multiple scalar multiplication
2388 of an arbitrary number of elliptic curve points
2389 \sum scalars[i]*points[i],
2390 optionally including the generator defined for the EC_GROUP:
2391 scalar*generator + \sum scalars[i]*points[i].
2393 EC_POINT_mul is a simple wrapper function for the typical case
2394 that the point list has just one item (besides the optional
2398 *) First EC_METHODs for curves over GF(p):
2400 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2401 operations and provides various method functions that can also
2402 operate with faster implementations of modular arithmetic.
2404 EC_GFp_mont_method() reuses most functions that are part of
2405 EC_GFp_simple_method, but uses Montgomery arithmetic.
2407 [Bodo Moeller; point addition and point doubling
2408 implementation directly derived from source code provided by
2409 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2411 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2412 crypto/ec/ec_lib.c):
2414 Curves are EC_GROUP objects (with an optional group generator)
2415 based on EC_METHODs that are built into the library.
2417 Points are EC_POINT objects based on EC_GROUP objects.
2419 Most of the framework would be able to handle curves over arbitrary
2420 finite fields, but as there are no obvious types for fields other
2421 than GF(p), some functions are limited to that for now.
2424 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2425 that the file contains a complete HTTP response.
2428 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2429 change the def and num file printf format specifier from "%-40sXXX"
2430 to "%-39s XXX". The latter will always guarantee a space after the
2431 field while the former will cause them to run together if the field
2432 is 40 of more characters long.
2435 *) Constify the cipher and digest 'method' functions and structures
2436 and modify related functions to take constant EVP_MD and EVP_CIPHER
2440 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2441 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2444 *) Modify EVP_Digest*() routines so they now return values. Although the
2445 internal software routines can never fail additional hardware versions
2449 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2451 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2452 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2455 ERR_R_NESTED_ASN1_ERROR
2457 ERR_R_MISSING_ASN1_EOS
2458 were 4 .. 9, conflicting with
2459 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2461 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2462 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2464 Add new error code 'ERR_R_INTERNAL_ERROR'.
2467 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2471 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2472 sets the subject name for a new request or supersedes the
2473 subject name in a given request. Formats that can be parsed are
2474 'CN=Some Name, OU=myOU, C=IT'
2476 'CN=Some Name/OU=myOU/C=IT'.
2478 Add options '-batch' and '-verbose' to 'openssl req'.
2479 [Massimiliano Pala <madwolf@hackmasters.net>]
2481 *) Introduce the possibility to access global variables through
2482 functions on platform were that's the best way to handle exporting
2483 global variables in shared libraries. To enable this functionality,
2484 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2485 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2486 is normally done by Configure or something similar).
2488 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2489 in the source file (foo.c) like this:
2491 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2492 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2494 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2495 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2497 OPENSSL_DECLARE_GLOBAL(int,foo);
2498 #define foo OPENSSL_GLOBAL_REF(foo)
2499 OPENSSL_DECLARE_GLOBAL(double,bar);
2500 #define bar OPENSSL_GLOBAL_REF(bar)
2502 The #defines are very important, and therefore so is including the
2503 header file everywhere where the defined globals are used.
2505 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2506 of ASN.1 items, but that structure is a bit different.
2508 The largest change is in util/mkdef.pl which has been enhanced with
2509 better and easier to understand logic to choose which symbols should
2510 go into the Windows .def files as well as a number of fixes and code
2511 cleanup (among others, algorithm keywords are now sorted
2512 lexicographically to avoid constant rewrites).
2515 *) In BN_div() keep a copy of the sign of 'num' before writing the
2516 result to 'rm' because if rm==num the value will be overwritten
2517 and produce the wrong result if 'num' is negative: this caused
2518 problems with BN_mod() and BN_nnmod().
2521 *) Function OCSP_request_verify(). This checks the signature on an
2522 OCSP request and verifies the signer certificate. The signer
2523 certificate is just checked for a generic purpose and OCSP request
2527 *) Add OCSP_check_validity() function to check the validity of OCSP
2528 responses. OCSP responses are prepared in real time and may only
2529 be a few seconds old. Simply checking that the current time lies
2530 between thisUpdate and nextUpdate max reject otherwise valid responses
2531 caused by either OCSP responder or client clock inaccuracy. Instead
2532 we allow thisUpdate and nextUpdate to fall within a certain period of
2533 the current time. The age of the response can also optionally be
2534 checked. Two new options -validity_period and -status_age added to
2538 *) If signature or public key algorithm is unrecognized print out its
2539 OID rather that just UNKNOWN.
2542 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2543 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2544 ID to be generated from the issuer certificate alone which can then be
2545 passed to OCSP_id_issuer_cmp().
2548 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2549 ASN1 modules to export functions returning ASN1_ITEM pointers
2550 instead of the ASN1_ITEM structures themselves. This adds several
2551 new macros which allow the underlying ASN1 function/structure to
2552 be accessed transparently. As a result code should not use ASN1_ITEM
2553 references directly (such as &X509_it) but instead use the relevant
2554 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2555 use of the new ASN1 code on platforms where exporting structures
2556 is problematical (for example in shared libraries) but exporting
2557 functions returning pointers to structures is not.
2560 *) Add support for overriding the generation of SSL/TLS session IDs.
2561 These callbacks can be registered either in an SSL_CTX or per SSL.
2562 The purpose of this is to allow applications to control, if they wish,
2563 the arbitrary values chosen for use as session IDs, particularly as it
2564 can be useful for session caching in multiple-server environments. A
2565 command-line switch for testing this (and any client code that wishes
2566 to use such a feature) has been added to "s_server".
2567 [Geoff Thorpe, Lutz Jaenicke]
2569 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2570 of the form '#if defined(...) || defined(...) || ...' and
2571 '#if !defined(...) && !defined(...) && ...'. This also avoids
2572 the growing number of special cases it was previously handling.
2575 *) Make all configuration macros available for application by making
2576 sure they are available in opensslconf.h, by giving them names starting
2577 with "OPENSSL_" to avoid conflicts with other packages and by making
2578 sure e_os2.h will cover all platform-specific cases together with
2580 Additionally, it is now possible to define configuration/platform-
2581 specific names (called "system identities"). In the C code, these
2582 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2583 macro with the name beginning with "OPENSSL_SYS_", which is determined
2584 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2588 *) New option -set_serial to 'req' and 'x509' this allows the serial
2589 number to use to be specified on the command line. Previously self
2590 signed certificates were hard coded with serial number 0 and the
2591 CA options of 'x509' had to use a serial number in a file which was
2595 *) New options to 'ca' utility to support V2 CRL entry extensions.
2596 Currently CRL reason, invalidity date and hold instruction are
2597 supported. Add new CRL extensions to V3 code and some new objects.
2600 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2601 disable standard block padding (aka PKCS#5 padding) in the EVP
2602 API, which was previously mandatory. This means that the data is
2603 not padded in any way and so the total length much be a multiple
2604 of the block size, otherwise an error occurs.
2607 *) Initial (incomplete) OCSP SSL support.
2610 *) New function OCSP_parse_url(). This splits up a URL into its host,
2611 port and path components: primarily to parse OCSP URLs. New -url
2612 option to ocsp utility.
2615 *) New nonce behavior. The return value of OCSP_check_nonce() now
2616 reflects the various checks performed. Applications can decide
2617 whether to tolerate certain situations such as an absent nonce
2618 in a response when one was present in a request: the ocsp application
2619 just prints out a warning. New function OCSP_add1_basic_nonce()
2620 this is to allow responders to include a nonce in a response even if
2621 the request is nonce-less.
2624 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2625 skipped when using openssl x509 multiple times on a single input file,
2626 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2629 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2630 set string type: to handle setting ASN1_TIME structures. Fix ca
2631 utility to correctly initialize revocation date of CRLs.
2634 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2635 the clients preferred ciphersuites and rather use its own preferences.
2636 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2637 Internet Explorer by ensuring unchanged hash method during stepup.
2638 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2641 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2642 to aes and add a new 'exist' option to print out symbols that don't
2646 *) Additional options to ocsp utility to allow flags to be set and
2647 additional certificates supplied.
2650 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2651 OCSP client a number of certificate to only verify the response
2655 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2656 handle the new API. Currently only ECB, CBC modes supported. Add new
2659 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2660 Encryption Standard (AES) Ciphersuites for Transport Layer
2661 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2662 not enabled by default and were not part of the "ALL" ciphersuite
2663 alias because they were not yet official; they could be
2664 explicitly requested by specifying the "AESdraft" ciphersuite
2665 group alias. In the final release of OpenSSL 0.9.7, the group
2666 alias is called "AES" and is part of "ALL".)
2667 [Ben Laurie, Steve Henson, Bodo Moeller]
2669 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2670 request to response.
2673 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2674 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2675 extract information from a certificate request. OCSP_response_create()
2676 creates a response and optionally adds a basic response structure.
2677 OCSP_basic_add1_status() adds a complete single response to a basic
2678 response and returns the OCSP_SINGLERESP structure just added (to allow
2679 extensions to be included for example). OCSP_basic_add1_cert() adds a
2680 certificate to a basic response and OCSP_basic_sign() signs a basic
2681 response with various flags. New helper functions ASN1_TIME_check()
2682 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2683 (converts ASN1_TIME to GeneralizedTime).
2686 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2687 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2688 structure from a certificate. X509_pubkey_digest() digests the public_key
2689 contents: this is used in various key identifiers.
2692 *) Make sk_sort() tolerate a NULL argument.
2693 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2695 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2696 passed by the function are trusted implicitly. If any of them signed the
2697 response then it is assumed to be valid and is not verified.
2700 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2701 to data. This was previously part of the PKCS7 ASN1 code. This
2702 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2703 [Steve Henson, reported by Kenneth R. Robinette
2704 <support@securenetterm.com>]
2706 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2707 routines: without these tracing memory leaks is very painful.
2708 Fix leaks in PKCS12 and PKCS7 routines.
2711 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2712 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2713 effectively meant GeneralizedTime would never be used. Now it
2714 is initialised to -1 but X509_time_adj() now has to check the value
2715 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2716 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2717 [Steve Henson, reported by Kenneth R. Robinette
2718 <support@securenetterm.com>]
2720 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2721 result in a zero length in the ASN1_INTEGER structure which was
2722 not consistent with the structure when d2i_ASN1_INTEGER() was used
2723 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2724 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2725 where it did not print out a minus for negative ASN1_INTEGER.
2728 *) Add summary printout to ocsp utility. The various functions which
2729 convert status values to strings have been renamed to:
2730 OCSP_response_status_str(), OCSP_cert_status_str() and
2731 OCSP_crl_reason_str() and are no longer static. New options
2732 to verify nonce values and to disable verification. OCSP response
2733 printout format cleaned up.
2736 *) Add additional OCSP certificate checks. These are those specified
2737 in RFC2560. This consists of two separate checks: the CA of the
2738 certificate being checked must either be the OCSP signer certificate
2739 or the issuer of the OCSP signer certificate. In the latter case the
2740 OCSP signer certificate must contain the OCSP signing extended key
2741 usage. This check is performed by attempting to match the OCSP
2742 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2743 in the OCSP_CERTID structures of the response.
2746 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2747 and related routines. This uses the standard OpenSSL certificate
2748 verify routines to perform initial checks (just CA validity) and
2749 to obtain the certificate chain. Then additional checks will be
2750 performed on the chain. Currently the root CA is checked to see
2751 if it is explicitly trusted for OCSP signing. This is used to set
2752 a root CA as a global signing root: that is any certificate that
2753 chains to that CA is an acceptable OCSP signing certificate.
2756 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2757 extensions from a separate configuration file.
2758 As when reading extensions from the main configuration file,
2759 the '-extensions ...' option may be used for specifying the
2761 [Massimiliano Pala <madwolf@comune.modena.it>]
2763 *) New OCSP utility. Allows OCSP requests to be generated or
2764 read. The request can be sent to a responder and the output
2765 parsed, outputed or printed in text form. Not complete yet:
2766 still needs to check the OCSP response validity.
2769 *) New subcommands for 'openssl ca':
2770 'openssl ca -status <serial>' prints the status of the cert with
2771 the given serial number (according to the index file).
2772 'openssl ca -updatedb' updates the expiry status of certificates
2774 [Massimiliano Pala <madwolf@comune.modena.it>]
2776 *) New '-newreq-nodes' command option to CA.pl. This is like
2777 '-newreq', but calls 'openssl req' with the '-nodes' option
2778 so that the resulting key is not encrypted.
2779 [Damien Miller <djm@mindrot.org>]
2781 *) New configuration for the GNU Hurd.
2782 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2784 *) Initial code to implement OCSP basic response verify. This
2785 is currently incomplete. Currently just finds the signer's
2786 certificate and verifies the signature on the response.
2789 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2790 value of OPENSSLDIR. This is available via the new '-d' option
2791 to 'openssl version', and is also included in 'openssl version -a'.
2794 *) Allowing defining memory allocation callbacks that will be given
2795 file name and line number information in additional arguments
2796 (a const char* and an int). The basic functionality remains, as
2797 well as the original possibility to just replace malloc(),
2798 realloc() and free() by functions that do not know about these
2799 additional arguments. To register and find out the current
2800 settings for extended allocation functions, the following
2801 functions are provided:
2803 CRYPTO_set_mem_ex_functions
2804 CRYPTO_set_locked_mem_ex_functions
2805 CRYPTO_get_mem_ex_functions
2806 CRYPTO_get_locked_mem_ex_functions
2808 These work the same way as CRYPTO_set_mem_functions and friends.
2809 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2810 extended allocation function is enabled.
2811 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2812 a conventional allocation function is enabled.
2813 [Richard Levitte, Bodo Moeller]
2815 *) Finish off removing the remaining LHASH function pointer casts.
2816 There should no longer be any prototype-casting required when using
2817 the LHASH abstraction, and any casts that remain are "bugs". See
2818 the callback types and macros at the head of lhash.h for details
2819 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2822 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2823 If /dev/[u]random devices are not available or do not return enough
2824 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2826 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2827 /etc/entropy will be queried once each in this sequence, quering stops
2828 when enough entropy was collected without querying more sockets.
2831 *) Change the Unix RAND_poll() variant to be able to poll several
2832 random devices, as specified by DEVRANDOM, until a sufficient amount
2833 of data has been collected. We spend at most 10 ms on each file
2834 (select timeout) and read in non-blocking mode. DEVRANDOM now
2835 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2836 (previously it was just the string "/dev/urandom"), so on typical
2837 platforms the 10 ms delay will never occur.
2838 Also separate out the Unix variant to its own file, rand_unix.c.
2839 For VMS, there's a currently-empty rand_vms.c.
2842 *) Move OCSP client related routines to ocsp_cl.c. These
2843 provide utility functions which an application needing
2844 to issue a request to an OCSP responder and analyse the
2845 response will typically need: as opposed to those which an
2846 OCSP responder itself would need which will be added later.
2848 OCSP_request_sign() signs an OCSP request with an API similar
2849 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2850 response. OCSP_response_get1_basic() extracts basic response
2851 from response. OCSP_resp_find_status(): finds and extracts status
2852 information from an OCSP_CERTID structure (which will be created
2853 when the request structure is built). These are built from lower
2854 level functions which work on OCSP_SINGLERESP structures but
2855 wont normally be used unless the application wishes to examine
2856 extensions in the OCSP response for example.
2858 Replace nonce routines with a pair of functions.
2859 OCSP_request_add1_nonce() adds a nonce value and optionally
2860 generates a random value. OCSP_check_nonce() checks the
2861 validity of the nonce in an OCSP response.
2864 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2865 This doesn't copy the supplied OCSP_CERTID and avoids the
2866 need to free up the newly created id. Change return type
2867 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2868 This can then be used to add extensions to the request.
2869 Deleted OCSP_request_new(), since most of its functionality
2870 is now in OCSP_REQUEST_new() (and the case insensitive name
2871 clash) apart from the ability to set the request name which
2872 will be added elsewhere.
2875 *) Update OCSP API. Remove obsolete extensions argument from
2876 various functions. Extensions are now handled using the new
2877 OCSP extension code. New simple OCSP HTTP function which
2878 can be used to send requests and parse the response.
2881 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2882 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2883 uses the special reorder version of SET OF to sort the attributes
2884 and reorder them to match the encoded order. This resolves a long
2885 standing problem: a verify on a PKCS7 structure just after signing
2886 it used to fail because the attribute order did not match the
2887 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2888 it uses the received order. This is necessary to tolerate some broken
2889 software that does not order SET OF. This is handled by encoding
2890 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2891 to produce the required SET OF.
2894 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2895 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2896 files to get correct declarations of the ASN.1 item variables.
2899 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2900 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2901 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2902 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2903 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2904 ASN1_ITEM and no wrapper functions.
2907 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2908 replace the old function pointer based I/O routines. Change most of
2909 the *_d2i_bio() and *_d2i_fp() functions to use these.
2912 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2913 lines, recognice more "algorithms" that can be deselected, and make
2914 it complain about algorithm deselection that isn't recognised.
2917 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2918 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2919 to use new functions. Add NO_ASN1_OLD which can be set to remove
2920 some old style ASN1 functions: this can be used to determine if old
2921 code will still work when these eventually go away.
2924 *) New extension functions for OCSP structures, these follow the
2925 same conventions as certificates and CRLs.
2928 *) New function X509V3_add1_i2d(). This automatically encodes and
2929 adds an extension. Its behaviour can be customised with various
2930 flags to append, replace or delete. Various wrappers added for
2931 certifcates and CRLs.
2934 *) Fix to avoid calling the underlying ASN1 print routine when
2935 an extension cannot be parsed. Correct a typo in the
2936 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2939 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2940 entries for variables.
2943 *) Add functionality to apps/openssl.c for detecting locking
2944 problems: As the program is single-threaded, all we have
2945 to do is register a locking callback using an array for
2946 storing which locks are currently held by the program.
2949 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2950 SSL_get_ex_data_X509_STORE_idx(), which is used in
2951 ssl_verify_cert_chain() and thus can be called at any time
2952 during TLS/SSL handshakes so that thread-safety is essential.
2953 Unfortunately, the ex_data design is not at all suited
2954 for multi-threaded use, so it probably should be abolished.
2957 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2958 [Broadcom, tweaked and integrated by Geoff Thorpe]
2960 *) Move common extension printing code to new function
2961 X509V3_print_extensions(). Reorganise OCSP print routines and
2962 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2965 *) New function X509_signature_print() to remove duplication in some
2969 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2970 set (this was treated exactly the same as SET OF previously). This
2971 is used to reorder the STACK representing the structure to match the
2972 encoding. This will be used to get round a problem where a PKCS7
2973 structure which was signed could not be verified because the STACK
2974 order did not reflect the encoded order.
2977 *) Reimplement the OCSP ASN1 module using the new code.
2980 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2981 for its ASN1 operations. The old style function pointers still exist
2982 for now but they will eventually go away.
2985 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2986 completely replaces the old ASN1 functionality with a table driven
2987 encoder and decoder which interprets an ASN1_ITEM structure describing
2988 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2989 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2990 has also been converted to the new form.
2993 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2994 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2995 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2996 for negative moduli.
2999 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3000 of not touching the result's sign bit.
3003 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3007 *) Changed the LHASH code to use prototypes for callbacks, and created
3008 macros to declare and implement thin (optionally static) functions
3009 that provide type-safety and avoid function pointer casting for the
3010 type-specific callbacks.
3013 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3015 [Veers Staats <staatsvr@asc.hpc.mil>,
3016 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3018 *) Reformat the FAQ so the different questions and answers can be divided
3019 in sections depending on the subject.
3022 *) Have the zlib compression code load ZLIB.DLL dynamically under
3026 *) New function BN_mod_sqrt for computing square roots modulo a prime
3027 (using the probabilistic Tonelli-Shanks algorithm unless
3028 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3029 be handled deterministically).
3030 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3032 *) Make BN_mod_inverse faster by explicitly handling small quotients
3033 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3034 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3037 *) New function BN_kronecker.
3040 *) Fix BN_gcd so that it works on negative inputs; the result is
3041 positive unless both parameters are zero.
3042 Previously something reasonably close to an infinite loop was
3043 possible because numbers could be growing instead of shrinking
3044 in the implementation of Euclid's algorithm.
3047 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3048 sign of the number in question.
3050 Fix BN_is_word(a,w) to work correctly for w == 0.
3052 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3053 because its test if the absolute value of 'a' equals 'w'.
3054 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3055 it exists mostly for use in the implementations of BN_is_zero(),
3056 BN_is_one(), and BN_is_word().
3059 *) New function BN_swap.
3062 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3063 the exponentiation functions are more likely to produce reasonable
3064 results on negative inputs.
3067 *) Change BN_mod_mul so that the result is always non-negative.
3068 Previously, it could be negative if one of the factors was negative;
3069 I don't think anyone really wanted that behaviour.
3072 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3073 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3074 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3075 and add new functions:
3084 BN_mod_lshift1_quick
3088 These functions always generate non-negative results.
3090 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3091 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3093 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3094 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3095 be reduced modulo m.
3096 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3099 The following entry accidentily appeared in the CHANGES file
3100 distributed with OpenSSL 0.9.7. The modifications described in
3101 it do *not* apply to OpenSSL 0.9.7.
3103 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3104 was actually never needed) and in BN_mul(). The removal in BN_mul()
3105 required a small change in bn_mul_part_recursive() and the addition
3106 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3107 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3108 bn_sub_words() and bn_add_words() except they take arrays with
3113 *) In 'openssl passwd', verify passwords read from the terminal
3114 unless the '-salt' option is used (which usually means that
3115 verification would just waste user's time since the resulting
3116 hash is going to be compared with some given password hash)
3117 or the new '-noverify' option is used.
3119 This is an incompatible change, but it does not affect
3120 non-interactive use of 'openssl passwd' (passwords on the command
3121 line, '-stdin' option, '-in ...' option) and thus should not
3125 *) Remove all references to RSAref, since there's no more need for it.
3128 *) Make DSO load along a path given through an environment variable
3129 (SHLIB_PATH) with shl_load().
3132 *) Constify the ENGINE code as a result of BIGNUM constification.
3133 Also constify the RSA code and most things related to it. In a
3134 few places, most notable in the depth of the ASN.1 code, ugly
3135 casts back to non-const were required (to be solved at a later
3139 *) Make it so the openssl application has all engines loaded by default.
3142 *) Constify the BIGNUM routines a little more.
3145 *) Add the following functions:
3147 ENGINE_load_cswift()
3149 ENGINE_load_atalla()
3151 ENGINE_load_builtin_engines()
3153 That way, an application can itself choose if external engines that
3154 are built-in in OpenSSL shall ever be used or not. The benefit is
3155 that applications won't have to be linked with libdl or other dso
3156 libraries unless it's really needed.
3158 Changed 'openssl engine' to load all engines on demand.
3159 Changed the engine header files to avoid the duplication of some
3160 declarations (they differed!).
3163 *) 'openssl engine' can now list capabilities.
3166 *) Better error reporting in 'openssl engine'.
3169 *) Never call load_dh_param(NULL) in s_server.
3172 *) Add engine application. It can currently list engines by name and
3173 identity, and test if they are actually available.
3176 *) Improve RPM specification file by forcing symbolic linking and making
3177 sure the installed documentation is also owned by root.root.
3178 [Damien Miller <djm@mindrot.org>]
3180 *) Give the OpenSSL applications more possibilities to make use of
3181 keys (public as well as private) handled by engines.
3184 *) Add OCSP code that comes from CertCo.
3187 *) Add VMS support for the Rijndael code.
3190 *) Added untested support for Nuron crypto accelerator.
3193 *) Add support for external cryptographic devices. This code was
3194 previously distributed separately as the "engine" branch.
3195 [Geoff Thorpe, Richard Levitte]
3197 *) Rework the filename-translation in the DSO code. It is now possible to
3198 have far greater control over how a "name" is turned into a filename
3199 depending on the operating environment and any oddities about the
3200 different shared library filenames on each system.
3203 *) Support threads on FreeBSD-elf in Configure.
3206 *) Fix for SHA1 assembly problem with MASM: it produces
3207 warnings about corrupt line number information when assembling
3208 with debugging information. This is caused by the overlapping
3210 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3213 NCONF_get_number() has no error checking at all. As a replacement,
3214 NCONF_get_number_e() is defined (_e for "error checking") and is
3215 promoted strongly. The old NCONF_get_number is kept around for
3216 binary backward compatibility.
3217 Make it possible for methods to load from something other than a BIO,
3218 by providing a function pointer that is given a name instead of a BIO.
3219 For example, this could be used to load configuration data from an
3223 *) Fix for non blocking accept BIOs. Added new I/O special reason
3224 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3225 with non blocking I/O was not possible because no retry code was
3226 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3230 *) Added the beginnings of Rijndael support.
3233 *) Fix for bug in DirectoryString mask setting. Add support for
3234 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3235 to allow certificate printing to more controllable, additional
3236 'certopt' option to 'x509' to allow new printing options to be
3240 *) Clean old EAY MD5 hack from e_os.h.
3243 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3245 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3246 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3247 [Joe Orton, Steve Henson]
3249 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3251 *) Fix additional bug revealed by the NISCC test suite:
3253 Stop bug triggering large recursion when presented with
3254 certain ASN.1 tags (CVE-2003-0851)
3257 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3259 *) Fix various bugs revealed by running the NISCC test suite:
3261 Stop out of bounds reads in the ASN1 code when presented with
3262 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3264 If verify callback ignores invalid public key errors don't try to check
3265 certificate signature with the NULL public key.
3269 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3270 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3274 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3275 extra data after the compression methods not only for TLS 1.0
3276 but also for SSL 3.0 (as required by the specification).
3277 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3279 *) Change X509_certificate_type() to mark the key as exported/exportable
3280 when it's 512 *bits* long, not 512 bytes.
3283 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3285 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3286 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3287 a protocol version number mismatch like a decryption error
3288 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3291 *) Turn on RSA blinding by default in the default implementation
3292 to avoid a timing attack. Applications that don't want it can call
3293 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3294 They would be ill-advised to do so in most cases.
3295 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3297 *) Change RSA blinding code so that it works when the PRNG is not
3298 seeded (in this case, the secret RSA exponent is abused as
3299 an unpredictable seed -- if it is not unpredictable, there
3300 is no point in blinding anyway). Make RSA blinding thread-safe
3301 by remembering the creator's thread ID in rsa->blinding and
3302 having all other threads use local one-time blinding factors
3303 (this requires more computation than sharing rsa->blinding, but
3304 avoids excessive locking; and if an RSA object is not shared
3305 between threads, blinding will still be very fast).
3308 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3310 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3311 via timing by performing a MAC computation even if incorrrect
3312 block cipher padding has been found. This is a countermeasure
3313 against active attacks where the attacker has to distinguish
3314 between bad padding and a MAC verification error. (CVE-2003-0078)
3316 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3317 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3318 Martin Vuagnoux (EPFL, Ilion)]
3320 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3322 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3323 memory from it's contents. This is done with a counter that will
3324 place alternating values in each byte. This can be used to solve
3325 two issues: 1) the removal of calls to memset() by highly optimizing
3326 compilers, and 2) cleansing with other values than 0, since those can
3327 be read through on certain media, for example a swap space on disk.
3330 *) Bugfix: client side session caching did not work with external caching,
3331 because the session->cipher setting was not restored when reloading
3332 from the external cache. This problem was masked, when
3333 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3334 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3337 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3338 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3339 [Zeev Lieber <zeev-l@yahoo.com>]
3341 *) Undo an undocumented change introduced in 0.9.6e which caused
3342 repeated calls to OpenSSL_add_all_ciphers() and
3343 OpenSSL_add_all_digests() to be ignored, even after calling
3347 *) Change the default configuration reader to deal with last line not
3348 being properly terminated.
3351 *) Change X509_NAME_cmp() so it applies the special rules on handling
3352 DN values that are of type PrintableString, as well as RDNs of type
3353 emailAddress where the value has the type ia5String.
3354 [stefank@valicert.com via Richard Levitte]
3356 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3357 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3358 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3359 the bitwise-OR of the two for use by the majority of applications
3360 wanting this behaviour, and update the docs. The documented
3361 behaviour and actual behaviour were inconsistent and had been
3362 changing anyway, so this is more a bug-fix than a behavioural
3364 [Geoff Thorpe, diagnosed by Nadav Har'El]
3366 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3367 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3370 *) Fix initialization code race conditions in
3371 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3372 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3373 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3374 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3375 ssl2_get_cipher_by_char(),
3376 ssl3_get_cipher_by_char().
3377 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3379 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3380 the cached sessions are flushed, as the remove_cb() might use ex_data
3381 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3382 (see [openssl.org #212]).
3383 [Geoff Thorpe, Lutz Jaenicke]
3385 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3386 length, instead of the encoding length to d2i_ASN1_OBJECT.
3389 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3391 *) [In 0.9.6g-engine release:]
3392 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3393 [Lynn Gazis <lgazis@rainbow.com>]
3395 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3397 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3398 and get fix the header length calculation.
3399 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3400 Alon Kantor <alonk@checkpoint.com> (and others),
3403 *) Use proper error handling instead of 'assertions' in buffer
3404 overflow checks added in 0.9.6e. This prevents DoS (the
3405 assertions could call abort()).
3406 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3408 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3410 *) Add various sanity checks to asn1_get_length() to reject
3411 the ASN1 length bytes if they exceed sizeof(long), will appear
3412 negative or the content length exceeds the length of the
3414 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3416 *) Fix cipher selection routines: ciphers without encryption had no flags
3417 for the cipher strength set and where therefore not handled correctly
3418 by the selection routines (PR #130).
3421 *) Fix EVP_dsa_sha macro.
3425 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3426 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3427 that was added in OpenSSL 0.9.6d.
3429 As the countermeasure turned out to be incompatible with some
3430 broken SSL implementations, the new option is part of SSL_OP_ALL.
3431 SSL_OP_ALL is usually employed when compatibility with weird SSL
3432 implementations is desired (e.g. '-bugs' option to 's_client' and
3433 's_server'), so the new option is automatically set in many
3437 *) Changes in security patch:
3439 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3440 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3441 Air Force Materiel Command, USAF, under agreement number
3444 *) Add various sanity checks to asn1_get_length() to reject
3445 the ASN1 length bytes if they exceed sizeof(long), will appear
3446 negative or the content length exceeds the length of the
3447 supplied buffer. (CVE-2002-0659)
3448 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3450 *) Assertions for various potential buffer overflows, not known to
3452 [Ben Laurie (CHATS)]
3454 *) Various temporary buffers to hold ASCII versions of integers were
3455 too small for 64 bit platforms. (CVE-2002-0655)
3456 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3458 *) Remote buffer overflow in SSL3 protocol - an attacker could
3459 supply an oversized session ID to a client. (CVE-2002-0656)
3460 [Ben Laurie (CHATS)]
3462 *) Remote buffer overflow in SSL2 protocol - an attacker could
3463 supply an oversized client master key. (CVE-2002-0656)
3464 [Ben Laurie (CHATS)]
3466 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3468 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3469 encoded as NULL) with id-dsa-with-sha1.
3470 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3472 *) Check various X509_...() return values in apps/req.c.
3473 [Nils Larsch <nla@trustcenter.de>]
3475 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3476 an end-of-file condition would erronously be flagged, when the CRLF
3477 was just at the end of a processed block. The bug was discovered when
3478 processing data through a buffering memory BIO handing the data to a
3479 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3480 <ptsekov@syntrex.com> and Nedelcho Stanev.
3483 *) Implement a countermeasure against a vulnerability recently found
3484 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3485 before application data chunks to avoid the use of known IVs
3486 with data potentially chosen by the attacker.
3489 *) Fix length checks in ssl3_get_client_hello().
3492 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3493 to prevent ssl3_read_internal() from incorrectly assuming that
3494 ssl3_read_bytes() found application data while handshake
3495 processing was enabled when in fact s->s3->in_read_app_data was
3496 merely automatically cleared during the initial handshake.
3497 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3499 *) Fix object definitions for Private and Enterprise: they were not
3500 recognized in their shortname (=lowercase) representation. Extend
3501 obj_dat.pl to issue an error when using undefined keywords instead
3502 of silently ignoring the problem (Svenning Sorensen
3503 <sss@sss.dnsalias.net>).
3506 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3507 generators, i.e. generators other than 2 and 5. (Previously, the
3508 code did not properly initialise the 'add' and 'rem' values to
3509 BN_generate_prime().)
3511 In the new general case, we do not insist that 'generator' is
3512 actually a primitive root: This requirement is rather pointless;
3513 a generator of the order-q subgroup is just as good, if not
3517 *) Map new X509 verification errors to alerts. Discovered and submitted by
3518 Tom Wu <tom@arcot.com>.
3521 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3522 returning non-zero before the data has been completely received
3523 when using non-blocking I/O.
3524 [Bodo Moeller; problem pointed out by John Hughes]
3526 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3527 [Ben Laurie, Lutz Jaenicke]
3529 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3530 Yoram Zahavi <YoramZ@gilian.com>).
3533 *) Add information about CygWin 1.3 and on, and preserve proper
3534 configuration for the versions before that.
3535 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3537 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3538 check whether we deal with a copy of a session and do not delete from
3539 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3540 <izhar@checkpoint.com>.
3543 *) Do not store session data into the internal session cache, if it
3544 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3545 flag is set). Proposed by Aslam <aslam@funk.com>.
3548 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3552 *) [In 0.9.6d-engine release:]
3553 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3554 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3556 *) Add the configuration target linux-s390x.
3557 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3559 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3560 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3561 variable as an indication that a ClientHello message has been
3562 received. As the flag value will be lost between multiple
3563 invocations of ssl3_accept when using non-blocking I/O, the
3564 function may not be aware that a handshake has actually taken
3565 place, thus preventing a new session from being added to the
3568 To avoid this problem, we now set s->new_session to 2 instead of
3569 using a local variable.
3570 [Lutz Jaenicke, Bodo Moeller]
3572 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3573 if the SSL_R_LENGTH_MISMATCH error is detected.
3574 [Geoff Thorpe, Bodo Moeller]
3576 *) New 'shared_ldflag' column in Configure platform table.
3579 *) Fix EVP_CIPHER_mode macro.
3580 ["Dan S. Camper" <dan@bti.net>]
3582 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3583 type, we must throw them away by setting rr->length to 0.
3584 [D P Chang <dpc@qualys.com>]
3586 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3588 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3589 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3590 worked incorrectly for those cases where range = 10..._2 and
3591 3*range is two bits longer than range.)
3594 *) Only add signing time to PKCS7 structures if it is not already
3598 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3599 OBJ_ld_ce should be OBJ_id_ce.
3600 Also some ip-pda OIDs in crypto/objects/objects.txt were
3601 incorrect (cf. RFC 3039).
3602 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3604 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3605 returns early because it has nothing to do.
3606 [Andy Schneider <andy.schneider@bjss.co.uk>]
3608 *) [In 0.9.6c-engine release:]
3609 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3610 [Andy Schneider <andy.schneider@bjss.co.uk>]
3612 *) [In 0.9.6c-engine release:]
3613 Add support for Cryptographic Appliance's keyserver technology.
3614 (Use engine 'keyclient')
3615 [Cryptographic Appliances and Geoff Thorpe]
3617 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3618 is called via tools/c89.sh because arguments have to be
3619 rearranged (all '-L' options must appear before the first object
3621 [Richard Shapiro <rshapiro@abinitio.com>]
3623 *) [In 0.9.6c-engine release:]
3624 Add support for Broadcom crypto accelerator cards, backported
3626 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3628 *) [In 0.9.6c-engine release:]
3629 Add support for SureWare crypto accelerator cards from
3630 Baltimore Technologies. (Use engine 'sureware')
3631 [Baltimore Technologies and Mark Cox]
3633 *) [In 0.9.6c-engine release:]
3634 Add support for crypto accelerator cards from Accelerated
3635 Encryption Processing, www.aep.ie. (Use engine 'aep')
3636 [AEP Inc. and Mark Cox]
3638 *) Add a configuration entry for gcc on UnixWare.
3639 [Gary Benson <gbenson@redhat.com>]
3641 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3642 messages are stored in a single piece (fixed-length part and
3643 variable-length part combined) and fix various bugs found on the way.
3646 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3647 instead. BIO_gethostbyname() does not know what timeouts are
3648 appropriate, so entries would stay in cache even when they have
3650 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3652 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3653 faced with a pathologically small ClientHello fragment that does
3654 not contain client_version: Instead of aborting with an error,
3655 simply choose the highest available protocol version (i.e.,
3656 TLS 1.0 unless it is disabled). In practice, ClientHello
3657 messages are never sent like this, but this change gives us
3658 strictly correct behaviour at least for TLS.
3661 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3662 never resets s->method to s->ctx->method when called from within
3663 one of the SSL handshake functions.
3664 [Bodo Moeller; problem pointed out by Niko Baric]
3666 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3667 (sent using the client's version number) if client_version is
3668 smaller than the protocol version in use. Also change
3669 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3670 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3671 the client will at least see that alert.
3674 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3678 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3679 client receives HelloRequest while in a handshake.
3680 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3682 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3683 should end in 'break', not 'goto end' which circuments various
3684 cleanups done in state SSL_ST_OK. But session related stuff
3685 must be disabled for SSL_ST_OK in the case that we just sent a
3688 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3689 before just sending a HelloRequest.
3690 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3692 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3693 reveal whether illegal block cipher padding was found or a MAC
3694 verification error occured. (Neither SSLerr() codes nor alerts
3695 are directly visible to potential attackers, but the information
3696 may leak via logfiles.)
3698 Similar changes are not required for the SSL 2.0 implementation
3699 because the number of padding bytes is sent in clear for SSL 2.0,
3700 and the extra bytes are just ignored. However ssl/s2_pkt.c
3701 failed to verify that the purported number of padding bytes is in
3705 *) Add OpenUNIX-8 support including shared libraries
3706 (Boyd Lynn Gerber <gerberb@zenez.com>).
3709 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3710 'wristwatch attack' using huge encoding parameters (cf.
3711 James H. Manger's CRYPTO 2001 paper). Note that the
3712 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3713 encoding parameters and hence was not vulnerable.
3716 *) BN_sqr() bug fix.
3717 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3719 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3720 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3721 followed by modular reduction.
3722 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3724 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3725 equivalent based on BN_pseudo_rand() instead of BN_rand().
3728 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3729 This function was broken, as the check for a new client hello message
3730 to handle SGC did not allow these large messages.
3731 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3734 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3737 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3738 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3741 *) Rework the configuration and shared library support for Tru64 Unix.
3742 The configuration part makes use of modern compiler features and
3743 still retains old compiler behavior for those that run older versions
3744 of the OS. The shared library support part includes a variant that
3745 uses the RPATH feature, and is available through the special
3746 configuration target "alpha-cc-rpath", which will never be selected
3748 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3750 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3751 with the same message size as in ssl3_get_certificate_request().
3752 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3753 messages might inadvertently be reject as too long.
3754 [Petr Lampa <lampa@fee.vutbr.cz>]
3756 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3759 *) Modified SSL library such that the verify_callback that has been set
3760 specificly for an SSL object with SSL_set_verify() is actually being
3761 used. Before the change, a verify_callback set with this function was
3762 ignored and the verify_callback() set in the SSL_CTX at the time of
3763 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3764 to allow the necessary settings.
3767 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3768 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3769 done automatically (in contradiction to the requirements of the C
3770 standard). This made problems when used from OpenSSH.
3773 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3774 dh->length and always used
3776 BN_rand_range(priv_key, dh->p).
3778 BN_rand_range() is not necessary for Diffie-Hellman, and this
3779 specific range makes Diffie-Hellman unnecessarily inefficient if
3780 dh->length (recommended exponent length) is much smaller than the
3781 length of dh->p. We could use BN_rand_range() if the order of
3782 the subgroup was stored in the DH structure, but we only have
3787 BN_rand(priv_key, l, ...)
3789 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3795 RSA_eay_public_encrypt
3796 RSA_eay_private_decrypt
3797 RSA_eay_private_encrypt (signing)
3798 RSA_eay_public_decrypt (signature verification)
3800 (default implementations for RSA_public_encrypt,
3801 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3802 always reject numbers >= n.
3805 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3806 to synchronize access to 'locking_thread'. This is necessary on
3807 systems where access to 'locking_thread' (an 'unsigned long'
3808 variable) is not atomic.
3811 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3812 *before* setting the 'crypto_lock_rand' flag. The previous code had
3813 a race condition if 0 is a valid thread ID.
3814 [Travis Vitek <vitek@roguewave.com>]
3816 *) Add support for shared libraries under Irix.
3817 [Albert Chin-A-Young <china@thewrittenword.com>]
3819 *) Add configuration option to build on Linux on both big-endian and
3821 [Ralf Baechle <ralf@uni-koblenz.de>]
3823 *) Add the possibility to create shared libraries on HP-UX.
3826 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3828 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3829 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3830 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3831 PRNG state recovery was possible based on the output of
3832 one PRNG request appropriately sized to gain knowledge on
3833 'md' followed by enough consecutive 1-byte PRNG requests
3834 to traverse all of 'state'.
3836 1. When updating 'md_local' (the current thread's copy of 'md')
3837 during PRNG output generation, hash all of the previous
3838 'md_local' value, not just the half used for PRNG output.
3840 2. Make the number of bytes from 'state' included into the hash
3841 independent from the number of PRNG bytes requested.
3843 The first measure alone would be sufficient to avoid
3844 Markku-Juhani's attack. (Actually it had never occurred
3845 to me that the half of 'md_local' used for chaining was the
3846 half from which PRNG output bytes were taken -- I had always
3847 assumed that the secret half would be used.) The second
3848 measure makes sure that additional data from 'state' is never
3849 mixed into 'md_local' in small portions; this heuristically
3850 further strengthens the PRNG.
3853 *) Fix crypto/bn/asm/mips3.s.
3856 *) When only the key is given to "enc", the IV is undefined. Print out
3857 an error message in this case.
3860 *) Handle special case when X509_NAME is empty in X509 printing routines.
3863 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3864 positive and less than q.
3867 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3868 used: it isn't thread safe and the add_lock_callback should handle
3870 [Paul Rose <Paul.Rose@bridge.com>]
3872 *) Verify that incoming data obeys the block size in
3873 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3877 [Ulf Möller, Bodo Möller]
3879 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3880 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3881 when fixing the server behaviour for backwards-compatible 'client
3882 hello' messages. (Note that the attack is impractical against
3883 SSL 3.0 and TLS 1.0 anyway because length and version checking
3884 means that the probability of guessing a valid ciphertext is
3885 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3888 Before 0.9.5, the countermeasure (hide the error by generating a
3889 random 'decryption result') did not work properly because
3890 ERR_clear_error() was missing, meaning that SSL_get_error() would
3891 detect the supposedly ignored error.
3893 Both problems are now fixed.
3896 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3897 (previously it was 1024).
3900 *) Fix for compatibility mode trust settings: ignore trust settings
3901 unless some valid trust or reject settings are present.
3904 *) Fix for blowfish EVP: its a variable length cipher.
3907 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3908 parameters in DSA public key structures and return an error in the
3909 DSA routines if parameters are absent.
3912 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3913 in the current directory if neither $RANDFILE nor $HOME was set.
3914 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3915 caused some confusion to Windows users who haven't defined $HOME.
3916 Thus RAND_file_name() is changed again: e_os.h can define a
3917 DEFAULT_HOME, which will be used if $HOME is not set.
3918 For Windows, we use "C:"; on other platforms, we still require
3919 environment variables.
3921 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3922 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3923 having multiple threads call RAND_poll() concurrently.
3926 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3927 combination of a flag and a thread ID variable.
3928 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3929 flag), *other* threads can enter ssleay_add_bytes without obeying
3930 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3931 that they do not hold after the first thread unsets add_do_not_lock).
3934 *) Change bctest again: '-x' expressions are not available in all
3938 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3940 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3941 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3943 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3944 the default extension for executables, if any. Also, make the perl
3945 scripts that use symlink() to test if it really exists and use "cp"
3946 if it doesn't. All this made OpenSSL compilable and installable in
3950 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3951 If SEQUENCE is length is indefinite just set c->slen to the total
3952 amount of data available.
3953 [Steve Henson, reported by shige@FreeBSD.org]
3954 [This change does not apply to 0.9.7.]
3956 *) Change bctest to avoid here-documents inside command substitution
3957 (workaround for FreeBSD /bin/sh bug).
3958 For compatibility with Ultrix, avoid shell functions (introduced
3959 in the bctest version that searches along $PATH).
3962 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3963 with des_encrypt() defined on some operating systems, like Solaris
3967 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3968 On the Importance of Eliminating Errors in Cryptographic
3969 Computations, J. Cryptology 14 (2001) 2, 101-119,
3970 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3973 *) MIPS assembler BIGNUM division bug fix.
3976 *) Disabled incorrect Alpha assembler code.
3979 *) Fix PKCS#7 decode routines so they correctly update the length
3980 after reading an EOC for the EXPLICIT tag.
3982 [This change does not apply to 0.9.7.]
3984 *) Fix bug in PKCS#12 key generation routines. This was triggered
3985 if a 3DES key was generated with a 0 initial byte. Include
3986 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3987 (but broken) behaviour.
3990 *) Enhance bctest to search for a working bc along $PATH and print
3992 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3994 *) Fix memory leaks in err.c: free err_data string if necessary;
3995 don't write to the wrong index in ERR_set_error_data.
3998 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4002 *) Replace rdtsc with _emit statements for VC++ version 5.
4003 [Jeremy Cooper <jeremy@baymoo.org>]
4005 *) Make it possible to reuse SSLv2 sessions.
4008 *) In copy_email() check for >= 0 as a return value for
4009 X509_NAME_get_index_by_NID() since 0 is a valid index.
4010 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4012 *) Avoid coredump with unsupported or invalid public keys by checking if
4013 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4014 PKCS7_verify() fails with non detached data.
4017 *) Don't use getenv in library functions when run as setuid/setgid.
4018 New function OPENSSL_issetugid().
4021 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4022 due to incorrect handling of multi-threading:
4024 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4026 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4028 3. Count how many times MemCheck_off() has been called so that
4029 nested use can be treated correctly. This also avoids
4030 inband-signalling in the previous code (which relied on the
4031 assumption that thread ID 0 is impossible).
4034 *) Add "-rand" option also to s_client and s_server.
4037 *) Fix CPU detection on Irix 6.x.
4038 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4039 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4041 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4044 [This change does not apply to 0.9.7.]
4046 *) Use the cached encoding of an X509_NAME structure rather than
4047 copying it. This is apparently the reason for the libsafe "errors"
4048 but the code is actually correct.
4051 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4052 Bleichenbacher's DSA attack.
4053 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4054 to be set and top=0 forces the highest bit to be set; top=-1 is new
4055 and leaves the highest bit random.
4056 [Ulf Moeller, Bodo Moeller]
4058 *) In the NCONF_...-based implementations for CONF_... queries
4059 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4060 a temporary CONF structure with the data component set to NULL
4061 (which gives segmentation faults in lh_retrieve).
4062 Instead, use NULL for the CONF pointer in CONF_get_string and
4063 CONF_get_number (which may use environment variables) and directly
4064 return NULL from CONF_get_section.
4067 *) Fix potential buffer overrun for EBCDIC.
4070 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4071 keyUsage if basicConstraints absent for a CA.
4074 *) Make SMIME_write_PKCS7() write mail header values with a format that
4075 is more generally accepted (no spaces before the semicolon), since
4076 some programs can't parse those values properly otherwise. Also make
4077 sure BIO's that break lines after each write do not create invalid
4081 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4082 macros previously used would not encode an empty SEQUENCE OF
4083 and break the signature.
4085 [This change does not apply to 0.9.7.]
4087 *) Zero the premaster secret after deriving the master secret in
4091 *) Add some EVP_add_digest_alias registrations (as found in
4092 OpenSSL_add_all_digests()) to SSL_library_init()
4093 aka OpenSSL_add_ssl_algorithms(). This provides improved
4094 compatibility with peers using X.509 certificates
4095 with unconventional AlgorithmIdentifier OIDs.
4098 *) Fix for Irix with NO_ASM.
4099 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4101 *) ./config script fixes.
4102 [Ulf Moeller, Richard Levitte]
4104 *) Fix 'openssl passwd -1'.
4107 *) Change PKCS12_key_gen_asc() so it can cope with non null
4108 terminated strings whose length is passed in the passlen
4109 parameter, for example from PEM callbacks. This was done
4110 by adding an extra length parameter to asc2uni().
4111 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4113 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4114 call failed, free the DSA structure.
4117 *) Fix to uni2asc() to cope with zero length Unicode strings.
4118 These are present in some PKCS#12 files.
4121 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4122 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4123 when writing a 32767 byte record.
4124 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4126 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4127 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4129 (RSA objects have a reference count access to which is protected
4130 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4131 so they are meant to be shared between threads.)
4132 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4133 "Reddie, Steven" <Steven.Reddie@ca.com>]
4135 *) Fix a deadlock in CRYPTO_mem_leaks().
4138 *) Use better test patterns in bntest.
4141 *) rand_win.c fix for Borland C.
4144 *) BN_rshift bugfix for n == 0.
4147 *) Add a 'bctest' script that checks for some known 'bc' bugs
4148 so that 'make test' does not abort just because 'bc' is broken.
4151 *) Store verify_result within SSL_SESSION also for client side to
4152 avoid potential security hole. (Re-used sessions on the client side
4153 always resulted in verify_result==X509_V_OK, not using the original
4154 result of the server certificate verification.)
4157 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4158 SSL3_RT_APPLICATION_DATA, return 0.
4159 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4163 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4164 releases, have been re-implemented by renaming the previous
4165 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4166 and ssl3_read_internal, respectively, and adding 'peek' parameters
4167 to them. The new ssl[23]_{read,peek} functions are calls to
4168 ssl[23]_read_internal with the 'peek' flag set appropriately.
4169 A 'peek' parameter has also been added to ssl3_read_bytes, which
4170 does the actual work for ssl3_read_internal.
4173 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4174 the method-specific "init()" handler. Also clean up ex_data after
4175 calling the method-specific "finish()" handler. Previously, this was
4176 happening the other way round.
4179 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4180 The previous value, 12, was not always sufficient for BN_mod_exp().
4183 *) Make sure that shared libraries get the internal name engine with
4184 the full version number and not just 0. This should mark the
4185 shared libraries as not backward compatible. Of course, this should
4186 be changed again when we can guarantee backward binary compatibility.
4189 *) Fix typo in get_cert_by_subject() in by_dir.c
4190 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4192 *) Rework the system to generate shared libraries:
4194 - Make note of the expected extension for the shared libraries and
4195 if there is a need for symbolic links from for example libcrypto.so.0
4196 to libcrypto.so.0.9.7. There is extended info in Configure for
4199 - Make as few rebuilds of the shared libraries as possible.
4201 - Still avoid linking the OpenSSL programs with the shared libraries.
4203 - When installing, install the shared libraries separately from the
4207 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4209 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4210 and not in SSL_clear because the latter is also used by the
4211 accept/connect functions; previously, the settings made by
4212 SSL_set_read_ahead would be lost during the handshake.
4213 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4215 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4216 Previously, it would create entries for disableed algorithms no
4220 *) Added several new manual pages for SSL_* function.
4223 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4225 *) In ssl23_get_client_hello, generate an error message when faced
4226 with an initial SSL 3.0/TLS record that is too small to contain the
4227 first two bytes of the ClientHello message, i.e. client_version.
4228 (Note that this is a pathologic case that probably has never happened
4229 in real life.) The previous approach was to use the version number
4230 from the record header as a substitute; but our protocol choice
4231 should not depend on that one because it is not authenticated
4232 by the Finished messages.
4235 *) More robust randomness gathering functions for Windows.
4236 [Jeffrey Altman <jaltman@columbia.edu>]
4238 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4239 not set then we don't setup the error code for issuer check errors
4240 to avoid possibly overwriting other errors which the callback does
4241 handle. If an application does set the flag then we assume it knows
4242 what it is doing and can handle the new informational codes
4246 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4247 a general "ANY" type, as such it should be able to decode anything
4248 including tagged types. However it didn't check the class so it would
4249 wrongly interpret tagged types in the same way as their universal
4250 counterpart and unknown types were just rejected. Changed so that the
4251 tagged and unknown types are handled in the same way as a SEQUENCE:
4252 that is the encoding is stored intact. There is also a new type
4253 "V_ASN1_OTHER" which is used when the class is not universal, in this
4254 case we have no idea what the actual type is so we just lump them all
4258 *) On VMS, stdout may very well lead to a file that is written to
4259 in a record-oriented fashion. That means that every write() will
4260 write a separate record, which will be read separately by the
4261 programs trying to read from it. This can be very confusing.
4263 The solution is to put a BIO filter in the way that will buffer
4264 text until a linefeed is reached, and then write everything a
4265 line at a time, so every record written will be an actual line,
4266 not chunks of lines and not (usually doesn't happen, but I've
4267 seen it once) several lines in one record. BIO_f_linebuffer() is
4270 Currently, it's a VMS-only method, because that's where it has
4271 been tested well enough.
4274 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4275 it can return incorrect results.
4276 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4277 but it was in 0.9.6-beta[12].)
4280 *) Disable the check for content being present when verifying detached
4281 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4282 include zero length content when signing messages.
4285 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4286 BIO_ctrl (for BIO pairs).
4289 *) Add DSO method for VMS.
4292 *) Bug fix: Montgomery multiplication could produce results with the
4296 *) Add RPM specification openssl.spec and modify it to build three
4297 packages. The default package contains applications, application
4298 documentation and run-time libraries. The devel package contains
4299 include files, static libraries and function documentation. The
4300 doc package contains the contents of the doc directory. The original
4301 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4304 *) Add a large number of documentation files for many SSL routines.
4305 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4307 *) Add a configuration entry for Sony News 4.
4308 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4310 *) Don't set the two most significant bits to one when generating a
4311 random number < q in the DSA library.
4314 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4315 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4316 the underlying transport is blocking) if a handshake took place.
4317 (The default behaviour is needed by applications such as s_client
4318 and s_server that use select() to determine when to use SSL_read;
4319 but for applications that know in advance when to expect data, it
4320 just makes things more complicated.)
4323 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4327 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4328 work better on such systems.
4329 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4331 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4332 Update PKCS12_parse() so it copies the friendlyName and the
4333 keyid to the certificates aux info.
4336 *) Fix bug in PKCS7_verify() which caused an infinite loop
4337 if there was more than one signature.
4338 [Sven Uszpelkat <su@celocom.de>]
4340 *) Major change in util/mkdef.pl to include extra information
4341 about each symbol, as well as presentig variables as well
4342 as functions. This change means that there's n more need
4343 to rebuild the .num files when some algorithms are excluded.
4346 *) Allow the verify time to be set by an application,
4347 rather than always using the current time.
4350 *) Phase 2 verify code reorganisation. The certificate
4351 verify code now looks up an issuer certificate by a
4352 number of criteria: subject name, authority key id
4353 and key usage. It also verifies self signed certificates
4354 by the same criteria. The main comparison function is
4355 X509_check_issued() which performs these checks.
4357 Lot of changes were necessary in order to support this
4358 without completely rewriting the lookup code.
4360 Authority and subject key identifier are now cached.
4362 The LHASH 'certs' is X509_STORE has now been replaced
4363 by a STACK_OF(X509_OBJECT). This is mainly because an
4364 LHASH can't store or retrieve multiple objects with
4365 the same hash value.
4367 As a result various functions (which were all internal
4368 use only) have changed to handle the new X509_STORE
4369 structure. This will break anything that messed round
4370 with X509_STORE internally.
4372 The functions X509_STORE_add_cert() now checks for an
4373 exact match, rather than just subject name.
4375 The X509_STORE API doesn't directly support the retrieval
4376 of multiple certificates matching a given criteria, however
4377 this can be worked round by performing a lookup first
4378 (which will fill the cache with candidate certificates)
4379 and then examining the cache for matches. This is probably
4380 the best we can do without throwing out X509_LOOKUP
4381 entirely (maybe later...).
4383 The X509_VERIFY_CTX structure has been enhanced considerably.
4385 All certificate lookup operations now go via a get_issuer()
4386 callback. Although this currently uses an X509_STORE it
4387 can be replaced by custom lookups. This is a simple way
4388 to bypass the X509_STORE hackery necessary to make this
4389 work and makes it possible to use more efficient techniques
4390 in future. A very simple version which uses a simple
4391 STACK for its trusted certificate store is also provided
4392 using X509_STORE_CTX_trusted_stack().
4394 The verify_cb() and verify() callbacks now have equivalents
4395 in the X509_STORE_CTX structure.
4397 X509_STORE_CTX also has a 'flags' field which can be used
4398 to customise the verify behaviour.
4401 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4402 excludes S/MIME capabilities.
4405 *) When a certificate request is read in keep a copy of the
4406 original encoding of the signed data and use it when outputing
4407 again. Signatures then use the original encoding rather than
4408 a decoded, encoded version which may cause problems if the
4409 request is improperly encoded.
4412 *) For consistency with other BIO_puts implementations, call
4413 buffer_write(b, ...) directly in buffer_puts instead of calling
4416 In BIO_puts, increment b->num_write as in BIO_write.
4417 [Peter.Sylvester@EdelWeb.fr]
4419 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4420 BN_zero, we may not return a BIGNUM with an array consisting of
4424 *) Avoid calling abort() from within the library when problems are
4425 detected, except if preprocessor symbols have been defined
4426 (such as REF_CHECK, BN_DEBUG etc.).
4429 *) New openssl application 'rsautl'. This utility can be
4430 used for low level RSA operations. DER public key
4431 BIO/fp routines also added.
4434 *) New Configure entry and patches for compiling on QNX 4.
4435 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4437 *) A demo state-machine implementation was sponsored by
4438 Nuron (http://www.nuron.com/) and is now available in
4439 demos/state_machine.
4442 *) New options added to the 'dgst' utility for signature
4443 generation and verification.
4446 *) Unrecognized PKCS#7 content types are now handled via a
4447 catch all ASN1_TYPE structure. This allows unsupported
4448 types to be stored as a "blob" and an application can
4449 encode and decode it manually.
4452 *) Fix various signed/unsigned issues to make a_strex.c
4454 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4456 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4457 length if passed a buffer. ASN1_INTEGER_to_BN failed
4458 if passed a NULL BN and its argument was negative.
4459 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4461 *) Modification to PKCS#7 encoding routines to output definite
4462 length encoding. Since currently the whole structures are in
4463 memory there's not real point in using indefinite length
4464 constructed encoding. However if OpenSSL is compiled with
4465 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4468 *) Added BIO_vprintf() and BIO_vsnprintf().
4471 *) Added more prefixes to parse for in the the strings written
4472 through a logging bio, to cover all the levels that are available
4473 through syslog. The prefixes are now:
4475 PANIC, EMERG, EMR => LOG_EMERG
4476 ALERT, ALR => LOG_ALERT
4477 CRIT, CRI => LOG_CRIT
4478 ERROR, ERR => LOG_ERR
4479 WARNING, WARN, WAR => LOG_WARNING
4480 NOTICE, NOTE, NOT => LOG_NOTICE
4481 INFO, INF => LOG_INFO
4482 DEBUG, DBG => LOG_DEBUG
4484 and as before, if none of those prefixes are present at the
4485 beginning of the string, LOG_ERR is chosen.
4487 On Win32, the LOG_* levels are mapped according to this:
4489 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4490 LOG_WARNING => EVENTLOG_WARNING_TYPE
4491 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4495 *) Made it possible to reconfigure with just the configuration
4496 argument "reconf" or "reconfigure". The command line arguments
4497 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4498 and are retrieved from there when reconfiguring.
4502 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4504 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4507 *) The obj_dat.pl script was messing up the sorting of object
4508 names. The reason was that it compared the quoted version
4509 of strings as a result "OCSP" > "OCSP Signing" because
4510 " > SPACE. Changed script to store unquoted versions of
4511 names and add quotes on output. It was also omitting some
4512 names from the lookup table if they were given a default
4513 value (that is if SN is missing it is given the same
4514 value as LN and vice versa), these are now added on the
4515 grounds that if an object has a name we should be able to
4516 look it up. Finally added warning output when duplicate
4517 short or long names are found.
4520 *) Changes needed for Tandem NSK.
4521 [Scott Uroff <scott@xypro.com>]
4523 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4524 RSA_padding_check_SSLv23(), special padding was never detected
4525 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4526 version rollback attacks was not effective.
4528 In s23_clnt.c, don't use special rollback-attack detection padding
4529 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4530 client; similarly, in s23_srvr.c, don't do the rollback check if
4531 SSL 2.0 is the only protocol enabled in the server.
4534 *) Make it possible to get hexdumps of unprintable data with 'openssl
4535 asn1parse'. By implication, the functions ASN1_parse_dump() and
4536 BIO_dump_indent() are added.
4539 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4540 these print out strings and name structures based on various
4541 flags including RFC2253 support and proper handling of
4542 multibyte characters. Added options to the 'x509' utility
4543 to allow the various flags to be set.
4546 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4547 Also change the functions X509_cmp_current_time() and
4548 X509_gmtime_adj() work with an ASN1_TIME structure,
4549 this will enable certificates using GeneralizedTime in validity
4550 dates to be checked.
4553 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4554 negative public key encodings) on by default,
4555 NO_NEG_PUBKEY_BUG can be set to disable it.
4558 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4559 content octets. An i2c_ASN1_OBJECT is unnecessary because
4560 the encoding can be trivially obtained from the structure.
4563 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4564 not read locks (CRYPTO_r_[un]lock).
4567 *) A first attempt at creating official support for shared
4568 libraries through configuration. I've kept it so the
4569 default is static libraries only, and the OpenSSL programs
4570 are always statically linked for now, but there are
4571 preparations for dynamic linking in place.
4572 This has been tested on Linux and Tru64.
4575 *) Randomness polling function for Win9x, as described in:
4576 Peter Gutmann, Software Generation of Practically Strong
4580 *) Fix so PRNG is seeded in req if using an already existing
4584 *) New options to smime application. -inform and -outform
4585 allow alternative formats for the S/MIME message including
4586 PEM and DER. The -content option allows the content to be
4587 specified separately. This should allow things like Netscape
4588 form signing output easier to verify.
4591 *) Fix the ASN1 encoding of tags using the 'long form'.
4594 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4595 STRING types. These convert content octets to and from the
4596 underlying type. The actual tag and length octets are
4597 already assumed to have been read in and checked. These
4598 are needed because all other string types have virtually
4599 identical handling apart from the tag. By having versions
4600 of the ASN1 functions that just operate on content octets
4601 IMPLICIT tagging can be handled properly. It also allows
4602 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4603 and ASN1_INTEGER are identical apart from the tag.
4606 *) Change the handling of OID objects as follows:
4608 - New object identifiers are inserted in objects.txt, following
4609 the syntax given in objects.README.
4610 - objects.pl is used to process obj_mac.num and create a new
4612 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4615 This is currently kind of a hack, and the perl code in objects.pl
4616 isn't very elegant, but it works as I intended. The simplest way
4617 to check that it worked correctly is to look in obj_dat.h and
4618 check the array nid_objs and make sure the objects haven't moved
4619 around (this is important!). Additions are OK, as well as
4620 consistent name changes.
4623 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4626 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4627 The given file adds to whatever has already been seeded into the
4628 random pool through the RANDFILE configuration file option or
4629 environment variable, or the default random state file.
4632 *) mkstack.pl now sorts each macro group into lexical order.
4633 Previously the output order depended on the order the files
4634 appeared in the directory, resulting in needless rewriting
4638 *) Patches to make OpenSSL compile under Win32 again. Mostly
4639 work arounds for the VC++ problem that it treats func() as
4640 func(void). Also stripped out the parts of mkdef.pl that
4641 added extra typesafe functions: these no longer exist.
4644 *) Reorganisation of the stack code. The macros are now all
4645 collected in safestack.h . Each macro is defined in terms of
4646 a "stack macro" of the form SKM_<name>(type, a, b). The
4647 DEBUG_SAFESTACK is now handled in terms of function casts,
4648 this has the advantage of retaining type safety without the
4649 use of additional functions. If DEBUG_SAFESTACK is not defined
4650 then the non typesafe macros are used instead. Also modified the
4651 mkstack.pl script to handle the new form. Needs testing to see
4652 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4653 the default if no major problems. Similar behaviour for ASN1_SET_OF
4654 and PKCS12_STACK_OF.
4657 *) When some versions of IIS use the 'NET' form of private key the
4658 key derivation algorithm is different. Normally MD5(password) is
4659 used as a 128 bit RC4 key. In the modified case
4660 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4661 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4662 as the old Netscape_RSA functions except they have an additional
4663 'sgckey' parameter which uses the modified algorithm. Also added
4664 an -sgckey command line option to the rsa utility. Thanks to
4665 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4666 algorithm to openssl-dev.
4669 *) The evp_local.h macros were using 'c.##kname' which resulted in
4670 invalid expansion on some systems (SCO 5.0.5 for example).
4671 Corrected to 'c.kname'.
4672 [Phillip Porch <root@theporch.com>]
4674 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4675 a STACK of email addresses from a certificate or request, these look
4676 in the subject name and the subject alternative name extensions and
4677 omit any duplicate addresses.
4680 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4681 This makes DSA verification about 2 % faster.
4684 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4685 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4686 plus overhead for 1024 bit moduli).
4687 This makes exponentiations about 0.5 % faster for 1024 bit
4688 exponents (as measured by "openssl speed rsa2048").
4691 *) Rename memory handling macros to avoid conflicts with other
4693 Malloc => OPENSSL_malloc
4694 Malloc_locked => OPENSSL_malloc_locked
4695 Realloc => OPENSSL_realloc
4696 Free => OPENSSL_free
4699 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4700 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4703 *) CygWin32 support.
4704 [John Jarvie <jjarvie@newsguy.com>]
4706 *) The type-safe stack code has been rejigged. It is now only compiled
4707 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4708 by default all type-specific stack functions are "#define"d back to
4709 standard stack functions. This results in more streamlined output
4710 but retains the type-safety checking possibilities of the original
4714 *) The STACK code has been cleaned up, and certain type declarations
4715 that didn't make a lot of sense have been brought in line. This has
4716 also involved a cleanup of sorts in safestack.h to more correctly
4717 map type-safe stack functions onto their plain stack counterparts.
4718 This work has also resulted in a variety of "const"ifications of
4719 lots of the code, especially "_cmp" operations which should normally
4720 be prototyped with "const" parameters anyway.
4723 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4724 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4725 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4726 where all of 'md' is used each time the PRNG is used, but 'state'
4727 is used only indexed by a cyclic counter. As entropy may not be
4728 well distributed from the beginning, 'md' is important as a
4729 chaining variable. However, the output function chains only half
4730 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4731 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4732 in all of 'state' being rewritten, with the new values depending
4733 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4736 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4737 the handshake is continued after ssl_verify_cert_chain();
4738 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4739 can lead to 'unexplainable' connection aborts later.
4740 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4742 *) Major EVP API cipher revision.
4743 Add hooks for extra EVP features. This allows various cipher
4744 parameters to be set in the EVP interface. Support added for variable
4745 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4746 setting of RC2 and RC5 parameters.
4748 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4751 Remove lots of duplicated code from the EVP library. For example *every*
4752 cipher init() function handles the 'iv' in the same way according to the
4753 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4754 for CFB and OFB modes they zero ctx->num.
4756 New functionality allows removal of S/MIME code RC2 hack.
4758 Most of the routines have the same form and so can be declared in terms
4761 By shifting this to the top level EVP_CipherInit() it can be removed from
4762 all individual ciphers. If the cipher wants to handle IVs or keys
4763 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4766 Change lots of functions like EVP_EncryptUpdate() to now return a
4767 value: although software versions of the algorithms cannot fail
4768 any installed hardware versions can.
4771 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4772 this option is set, tolerate broken clients that send the negotiated
4773 protocol version number instead of the requested protocol version
4777 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4778 i.e. non-zero for export ciphersuites, zero otherwise.
4779 Previous versions had this flag inverted, inconsistent with
4780 rsa_tmp_cb (..._TMP_RSA_CB).
4781 [Bodo Moeller; problem reported by Amit Chopra]
4783 *) Add missing DSA library text string. Work around for some IIS
4784 key files with invalid SEQUENCE encoding.
4787 *) Add a document (doc/standards.txt) that list all kinds of standards
4788 and so on that are implemented in OpenSSL.
4791 *) Enhance c_rehash script. Old version would mishandle certificates
4792 with the same subject name hash and wouldn't handle CRLs at all.
4793 Added -fingerprint option to crl utility, to support new c_rehash
4797 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4800 *) Fix for SSL server purpose checking. Server checking was
4801 rejecting certificates which had extended key usage present
4802 but no ssl client purpose.
4803 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4805 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4806 is a little unclear about how a blank password is handled.
4807 Since the password in encoded as a BMPString with terminating
4808 double NULL a zero length password would end up as just the
4809 double NULL. However no password at all is different and is
4810 handled differently in the PKCS#12 key generation code. NS
4811 treats a blank password as zero length. MSIE treats it as no
4812 password on export: but it will try both on import. We now do
4813 the same: PKCS12_parse() tries zero length and no password if
4814 the password is set to "" or NULL (NULL is now a valid password:
4815 it wasn't before) as does the pkcs12 application.
4818 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4819 perror when PEM_read_bio_X509_REQ fails, the error message must
4820 be obtained from the error queue.
4823 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4824 it in ERR_remove_state if appropriate, and change ERR_get_state
4825 accordingly to avoid race conditions (this is necessary because
4826 thread_hash is no longer constant once set).
4829 *) Bugfix for linux-elf makefile.one.
4832 *) RSA_get_default_method() will now cause a default
4833 RSA_METHOD to be chosen if one doesn't exist already.
4834 Previously this was only set during a call to RSA_new()
4835 or RSA_new_method(NULL) meaning it was possible for
4836 RSA_get_default_method() to return NULL.
4839 *) Added native name translation to the existing DSO code
4840 that will convert (if the flag to do so is set) filenames
4841 that are sufficiently small and have no path information
4842 into a canonical native form. Eg. "blah" converted to
4843 "libblah.so" or "blah.dll" etc.
4846 *) New function ERR_error_string_n(e, buf, len) which is like
4847 ERR_error_string(e, buf), but writes at most 'len' bytes
4848 including the 0 terminator. For ERR_error_string_n, 'buf'
4850 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4852 *) CONF library reworked to become more general. A new CONF
4853 configuration file reader "class" is implemented as well as a
4854 new functions (NCONF_*, for "New CONF") to handle it. The now
4855 old CONF_* functions are still there, but are reimplemented to
4856 work in terms of the new functions. Also, a set of functions
4857 to handle the internal storage of the configuration data is
4858 provided to make it easier to write new configuration file
4859 reader "classes" (I can definitely see something reading a
4860 configuration file in XML format, for example), called _CONF_*,
4861 or "the configuration storage API"...
4863 The new configuration file reading functions are:
4865 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4866 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4868 NCONF_default, NCONF_WIN32
4870 NCONF_dump_fp, NCONF_dump_bio
4872 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4873 NCONF_new creates a new CONF object. This works in the same way
4874 as other interfaces in OpenSSL, like the BIO interface.
4875 NCONF_dump_* dump the internal storage of the configuration file,
4876 which is useful for debugging. All other functions take the same
4877 arguments as the old CONF_* functions wth the exception of the
4878 first that must be a `CONF *' instead of a `LHASH *'.
4880 To make it easer to use the new classes with the old CONF_* functions,
4881 the function CONF_set_default_method is provided.
4884 *) Add '-tls1' option to 'openssl ciphers', which was already
4885 mentioned in the documentation but had not been implemented.
4886 (This option is not yet really useful because even the additional
4887 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4890 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4891 OpenSSL-based applications) load shared libraries and bind to
4892 them in a portable way.
4893 [Geoff Thorpe, with contributions from Richard Levitte]
4895 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4897 *) Make sure _lrotl and _lrotr are only used with MSVC.
4899 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4900 (the default implementation of RAND_status).
4902 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4903 to '-clrext' (= clear extensions), as intended and documented.
4904 [Bodo Moeller; inconsistency pointed out by Michael Attili
4907 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4908 was larger than the MD block size.
4909 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4911 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4912 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4913 using the passed key: if the passed key was a private key the result
4914 of X509_print(), for example, would be to print out all the private key
4918 *) des_quad_cksum() byte order bug fix.
4919 [Ulf Möller, using the problem description in krb4-0.9.7, where
4920 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4922 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4924 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4926 *) For easily testing in shell scripts whether some command
4927 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4928 returns with exit code 0 iff no command of the given name is available.
4929 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4930 the output goes to stdout and nothing is printed to stderr.
4931 Additional arguments are always ignored.
4933 Since for each cipher there is a command of the same name,
4934 the 'no-cipher' compilation switches can be tested this way.
4936 ('openssl no-XXX' is not able to detect pseudo-commands such
4937 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4940 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4943 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4944 is set; it will be thrown away anyway because each handshake creates
4946 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4947 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4948 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4949 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4952 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4953 'Q' and 'R' lose their special meanings (quit/renegotiate).
4954 This is part of what -quiet does; unlike -quiet, -ign_eof
4955 does not suppress any output.
4958 *) Add compatibility options to the purpose and trust code. The
4959 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4960 accepts a certificate or CA, this was the previous behaviour,
4961 with all the associated security issues.
4963 X509_TRUST_COMPAT is the old trust behaviour: only and
4964 automatically trust self signed roots in certificate store. A
4965 new trust setting X509_TRUST_DEFAULT is used to specify that
4966 a purpose has no associated trust setting and it should instead
4967 use the value in the default purpose.
4970 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4971 and fix a memory leak.
4974 *) In util/mkerr.pl (which implements 'make errors'), preserve
4975 reason strings from the previous version of the .c file, as
4976 the default to have only downcase letters (and digits) in
4977 automatically generated reasons codes is not always appropriate.
4980 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4981 using strerror. Previously, ERR_reason_error_string() returned
4982 library names as reason strings for SYSerr; but SYSerr is a special
4983 case where small numbers are errno values, not library numbers.
4986 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4987 converts DSA parameters into DH parameters. (When creating parameters,
4988 DSA_generate_parameters is used.)
4991 *) Include 'length' (recommended exponent length) in C code generated
4992 by 'openssl dhparam -C'.
4995 *) The second argument to set_label in perlasm was already being used
4996 so couldn't be used as a "file scope" flag. Moved to third argument
5000 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5001 instead of RAND_bytes for encryption IVs and salts.
5004 *) Include RAND_status() into RAND_METHOD instead of implementing
5005 it only for md_rand.c Otherwise replacing the PRNG by calling
5006 RAND_set_rand_method would be impossible.
5009 *) Don't let DSA_generate_key() enter an infinite loop if the random
5010 number generation fails.
5013 *) New 'rand' application for creating pseudo-random output.
5016 *) Added configuration support for Linux/IA64
5017 [Rolf Haberrecker <rolf@suse.de>]
5019 *) Assembler module support for Mingw32.
5022 *) Shared library support for HPUX (in shlib/).
5023 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5025 *) Shared library support for Solaris gcc.
5026 [Lutz Behnke <behnke@trustcenter.de>]
5028 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5030 *) PKCS7_encrypt() was adding text MIME headers twice because they
5031 were added manually and by SMIME_crlf_copy().
5034 *) In bntest.c don't call BN_rand with zero bits argument.
5035 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5037 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5038 case was implemented. This caused BN_div_recp() to fail occasionally.
5041 *) Add an optional second argument to the set_label() in the perl
5042 assembly language builder. If this argument exists and is set
5043 to 1 it signals that the assembler should use a symbol whose
5044 scope is the entire file, not just the current function. This
5045 is needed with MASM which uses the format label:: for this scope.
5046 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5048 *) Change the ASN1 types so they are typedefs by default. Before
5049 almost all types were #define'd to ASN1_STRING which was causing
5050 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5054 *) Change names of new functions to the new get1/get0 naming
5055 convention: After 'get1', the caller owns a reference count
5056 and has to call ..._free; 'get0' returns a pointer to some
5057 data structure without incrementing reference counters.
5058 (Some of the existing 'get' functions increment a reference
5059 counter, some don't.)
5060 Similarly, 'set1' and 'add1' functions increase reference
5061 counters or duplicate objects.
5064 *) Allow for the possibility of temp RSA key generation failure:
5065 the code used to assume it always worked and crashed on failure.
5068 *) Fix potential buffer overrun problem in BIO_printf().
5069 [Ulf Möller, using public domain code by Patrick Powell; problem
5070 pointed out by David Sacerdote <das33@cornell.edu>]
5072 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5073 RAND_egd() and RAND_status(). In the command line application,
5074 the EGD socket can be specified like a seed file using RANDFILE
5078 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5079 Some CAs (e.g. Verisign) distribute certificates in this form.
5082 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5083 list to exclude them. This means that no special compilation option
5084 is needed to use anonymous DH: it just needs to be included in the
5088 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5089 EVP_MD_type. The old functionality is available in a new macro called
5090 EVP_MD_md(). Change code that uses it and update docs.
5093 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5094 where the 'void *' argument is replaced by a function pointer argument.
5095 Previously 'void *' was abused to point to functions, which works on
5096 many platforms, but is not correct. As these functions are usually
5097 called by macros defined in OpenSSL header files, most source code
5098 should work without changes.
5101 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5102 sections with information on -D... compiler switches used for
5103 compiling the library so that applications can see them. To enable
5104 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5105 must be defined. E.g.,
5106 #define OPENSSL_ALGORITHM_DEFINES
5107 #include <openssl/opensslconf.h>
5108 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5109 [Richard Levitte, Ulf and Bodo Möller]
5111 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5115 *) Change the 'other' type in certificate aux info to a STACK_OF
5116 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5117 the required ASN1 format: arbitrary types determined by an OID.
5120 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5121 argument to 'req'. This is not because the function is newer or
5122 better than others it just uses the work 'NEW' in the certificate
5123 request header lines. Some software needs this.
5126 *) Reorganise password command line arguments: now passwords can be
5127 obtained from various sources. Delete the PEM_cb function and make
5128 it the default behaviour: i.e. if the callback is NULL and the
5129 usrdata argument is not NULL interpret it as a null terminated pass
5130 phrase. If usrdata and the callback are NULL then the pass phrase
5131 is prompted for as usual.
5134 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5135 the support is automatically enabled. The resulting binaries will
5136 autodetect the card and use it if present.
5137 [Ben Laurie and Compaq Inc.]
5139 *) Work around for Netscape hang bug. This sends certificate request
5140 and server done in one record. Since this is perfectly legal in the
5141 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5142 the bugs/SSLv3 entry for more info.
5145 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5148 *) Add -rand argument to smime and pkcs12 applications and read/write
5152 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5155 *) Add command line password options to the remaining applications.
5158 *) Bug fix for BN_div_recp() for numerators with an even number of
5162 *) More tests in bntest.c, and changed test_bn output.
5165 *) ./config recognizes MacOS X now.
5168 *) Bug fix for BN_div() when the first words of num and divsor are
5169 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5172 *) Add support for various broken PKCS#8 formats, and command line
5173 options to produce them.
5176 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5177 get temporary BIGNUMs from a BN_CTX.
5180 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5184 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5185 include a #define from the old name to the new. The original intent
5186 was that statically linked binaries could for example just call
5187 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5188 link with digests. This never worked becayse SSLeay_add_all_digests()
5189 and SSLeay_add_all_ciphers() were in the same source file so calling
5190 one would link with the other. They are now in separate source files.
5193 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5196 *) Use a less unusual form of the Miller-Rabin primality test (it used
5197 a binary algorithm for exponentiation integrated into the Miller-Rabin
5198 loop, our standard modexp algorithms are faster).
5201 *) Support for the EBCDIC character set completed.
5202 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5204 *) Source code cleanups: use const where appropriate, eliminate casts,
5205 use void * instead of char * in lhash.
5208 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5209 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5210 this the server could overwrite ephemeral keys that the client
5214 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5215 using 50 iterations of the Rabin-Miller test.
5217 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5218 iterations of the Rabin-Miller test as required by the appendix
5219 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5220 As BN_is_prime_fasttest includes trial division, DSA parameter
5221 generation becomes much faster.
5223 This implies a change for the callback functions in DSA_is_prime
5224 and DSA_generate_parameters: The callback function is called once
5225 for each positive witness in the Rabin-Miller test, not just
5226 occasionally in the inner loop; and the parameters to the
5227 callback function now provide an iteration count for the outer
5228 loop rather than for the current invocation of the inner loop.
5229 DSA_generate_parameters additionally can call the callback
5230 function with an 'iteration count' of -1, meaning that a
5231 candidate has passed the trial division test (when q is generated
5232 from an application-provided seed, trial division is skipped).
5235 *) New function BN_is_prime_fasttest that optionally does trial
5236 division before starting the Rabin-Miller test and has
5237 an additional BN_CTX * argument (whereas BN_is_prime always
5238 has to allocate at least one BN_CTX).
5239 'callback(1, -1, cb_arg)' is called when a number has passed the
5240 trial division stage.
5243 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5247 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5250 *) New function BN_pseudo_rand().
5253 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5254 bignum version of BN_from_montgomery() with the working code from
5255 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5259 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5260 made it impossible to use the same SSL_SESSION data structure in
5261 SSL2 clients in multiple threads.
5264 *) The return value of RAND_load_file() no longer counts bytes obtained
5265 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5266 to seed the PRNG (previously an explicit byte count was required).
5267 [Ulf Möller, Bodo Möller]
5269 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5270 used (char *) instead of (void *) and had casts all over the place.
5273 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5276 *) Retain source code compatibility for BN_prime_checks macro:
5277 BN_is_prime(..., BN_prime_checks, ...) now uses
5278 BN_prime_checks_for_size to determine the appropriate number of
5279 Rabin-Miller iterations.
5282 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5283 DH_CHECK_P_NOT_SAFE_PRIME.
5284 (Check if this is true? OpenPGP calls them "strong".)
5287 *) Merge the functionality of "dh" and "gendh" programs into a new program
5288 "dhparam". The old programs are retained for now but will handle DH keys
5289 (instead of parameters) in future.
5292 *) Make the ciphers, s_server and s_client programs check the return values
5293 when a new cipher list is set.
5296 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5297 ciphers. Before when the 56bit ciphers were enabled the sorting was
5300 The syntax for the cipher sorting has been extended to support sorting by
5301 cipher-strength (using the strength_bits hard coded in the tables).
5302 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5304 Fix a bug in the cipher-command parser: when supplying a cipher command
5305 string with an "undefined" symbol (neither command nor alphanumeric
5306 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5307 an error is flagged.
5309 Due to the strength-sorting extension, the code of the
5310 ssl_create_cipher_list() function was completely rearranged. I hope that
5311 the readability was also increased :-)
5312 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5314 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5315 for the first serial number and places 2 in the serial number file. This
5316 avoids problems when the root CA is created with serial number zero and
5317 the first user certificate has the same issuer name and serial number
5321 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5322 the new code. Add documentation for this stuff.
5325 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5326 X509_*() to X509at_*() on the grounds that they don't handle X509
5327 structures and behave in an analagous way to the X509v3 functions:
5328 they shouldn't be called directly but wrapper functions should be used
5331 So we also now have some wrapper functions that call the X509at functions
5332 when passed certificate requests. (TO DO: similar things can be done with
5333 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5334 things. Some of these need some d2i or i2d and print functionality
5335 because they handle more complex structures.)
5338 *) Add missing #ifndefs that caused missing symbols when building libssl
5339 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5340 NO_RSA in ssl/s2*.c.
5341 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5343 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5344 has a return value which indicates the quality of the random data
5345 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5346 error queue. New function RAND_pseudo_bytes() generates output that is
5347 guaranteed to be unique but not unpredictable. RAND_add is like
5348 RAND_seed, but takes an extra argument for an entropy estimate
5349 (RAND_seed always assumes full entropy).
5352 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5353 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5354 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5355 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5356 false-positive rate of at most 2^-80 for random input.
5359 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5362 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5363 in the 0.9.5 release), this returns the chain
5364 from an X509_CTX structure with a dup of the stack and all
5365 the X509 reference counts upped: so the stack will exist
5366 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5369 Also make SSL_SESSION_print() print out the verify return
5373 *) Add manpage for the pkcs12 command. Also change the default
5374 behaviour so MAC iteration counts are used unless the new
5375 -nomaciter option is used. This improves file security and
5376 only older versions of MSIE (4.0 for example) need it.
5379 *) Honor the no-xxx Configure options when creating .DEF files.
5382 *) Add PKCS#10 attributes to field table: challengePassword,
5383 unstructuredName and unstructuredAddress. These are taken from
5384 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5385 international characters are used.
5387 More changes to X509_ATTRIBUTE code: allow the setting of types
5388 based on strings. Remove the 'loc' parameter when adding
5389 attributes because these will be a SET OF encoding which is sorted
5393 *) Initial changes to the 'req' utility to allow request generation
5394 automation. This will allow an application to just generate a template
5395 file containing all the field values and have req construct the
5398 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5399 used all over the place including certificate requests and PKCS#7
5400 structures. They are currently handled manually where necessary with
5401 some primitive wrappers for PKCS#7. The new functions behave in a
5402 manner analogous to the X509 extension functions: they allow
5403 attributes to be looked up by NID and added.
5405 Later something similar to the X509V3 code would be desirable to
5406 automatically handle the encoding, decoding and printing of the
5407 more complex types. The string types like challengePassword can
5408 be handled by the string table functions.
5410 Also modified the multi byte string table handling. Now there is
5411 a 'global mask' which masks out certain types. The table itself
5412 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5413 is useful when for example there is only one permissible type
5414 (as in countryName) and using the mask might result in no valid
5418 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5419 SSL_get_peer_finished to allow applications to obtain the latest
5420 Finished messages sent to the peer or expected from the peer,
5421 respectively. (SSL_get_peer_finished is usually the Finished message
5422 actually received from the peer, otherwise the protocol will be aborted.)
5424 As the Finished message are message digests of the complete handshake
5425 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5426 be used for external authentication procedures when the authentication
5427 provided by SSL/TLS is not desired or is not enough.
5430 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5431 the host supports BWX extension and if Compaq C is present on the
5432 $PATH. Just exploiting of the BWX extension results in 20-30%
5433 performance kick for some algorithms, e.g. DES and RC4 to mention
5434 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5438 *) Add support for MS "fast SGC". This is arguably a violation of the
5439 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5440 weak crypto and after checking the certificate is SGC a second one
5441 with strong crypto. MS SGC stops the first handshake after receiving
5442 the server certificate message and sends a second client hello. Since
5443 a server will typically do all the time consuming operations before
5444 expecting any further messages from the client (server key exchange
5445 is the most expensive) there is little difference between the two.
5447 To get OpenSSL to support MS SGC we have to permit a second client
5448 hello message after we have sent server done. In addition we have to
5449 reset the MAC if we do get this second client hello.
5452 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5453 if a DER encoded private key is RSA or DSA traditional format. Changed
5454 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5455 format DER encoded private key. Newer code should use PKCS#8 format which
5456 has the key type encoded in the ASN1 structure. Added DER private key
5457 support to pkcs8 application.
5460 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5461 ciphersuites has been selected (as required by the SSL 3/TLS 1
5462 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5463 is set, we interpret this as a request to violate the specification
5464 (the worst that can happen is a handshake failure, and 'correct'
5465 behaviour would result in a handshake failure anyway).
5468 *) In SSL_CTX_add_session, take into account that there might be multiple
5469 SSL_SESSION structures with the same session ID (e.g. when two threads
5470 concurrently obtain them from an external cache).
5471 The internal cache can handle only one SSL_SESSION with a given ID,
5472 so if there's a conflict, we now throw out the old one to achieve
5476 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5477 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5478 some routines that use cipher OIDs: some ciphers do not have OIDs
5479 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5483 *) Simplify the trust setting structure and code. Now we just have
5484 two sequences of OIDs for trusted and rejected settings. These will
5485 typically have values the same as the extended key usage extension
5486 and any application specific purposes.
5488 The trust checking code now has a default behaviour: it will just
5489 check for an object with the same NID as the passed id. Functions can
5490 be provided to override either the default behaviour or the behaviour
5491 for a given id. SSL client, server and email already have functions
5492 in place for compatibility: they check the NID and also return "trusted"
5493 if the certificate is self signed.
5496 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5497 traditional format into an EVP_PKEY structure.
5500 *) Add a password callback function PEM_cb() which either prompts for
5501 a password if usr_data is NULL or otherwise assumes it is a null
5502 terminated password. Allow passwords to be passed on command line
5503 environment or config files in a few more utilities.
5506 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5507 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5508 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5509 Update documentation.
5512 *) Support for ASN1 "NULL" type. This could be handled before by using
5513 ASN1_TYPE but there wasn't any function that would try to read a NULL
5514 and produce an error if it couldn't. For compatibility we also have
5515 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5516 don't allocate anything because they don't need to.
5519 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5521 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5523 *) Rebuild of the memory allocation routines used by OpenSSL code and
5524 possibly others as well. The purpose is to make an interface that
5525 provide hooks so anyone can build a separate set of allocation and
5526 deallocation routines to be used by OpenSSL, for example memory
5527 pool implementations, or something else, which was previously hard
5528 since Malloc(), Realloc() and Free() were defined as macros having
5529 the values malloc, realloc and free, respectively (except for Win32
5530 compilations). The same is provided for memory debugging code.
5531 OpenSSL already comes with functionality to find memory leaks, but
5532 this gives people a chance to debug other memory problems.
5534 With these changes, a new set of functions and macros have appeared:
5536 CRYPTO_set_mem_debug_functions() [F]
5537 CRYPTO_get_mem_debug_functions() [F]
5538 CRYPTO_dbg_set_options() [F]
5539 CRYPTO_dbg_get_options() [F]
5540 CRYPTO_malloc_debug_init() [M]
5542 The memory debug functions are NULL by default, unless the library
5543 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5544 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5545 gives the standard debugging functions that come with OpenSSL) or
5546 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5547 provided by the library user) must be used. When the standard
5548 debugging functions are used, CRYPTO_dbg_set_options can be used to
5549 request additional information:
5550 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5551 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5553 Also, things like CRYPTO_set_mem_functions will always give the
5554 expected result (the new set of functions is used for allocation
5555 and deallocation) at all times, regardless of platform and compiler
5558 To finish it up, some functions that were never use in any other
5559 way than through macros have a new API and new semantic:
5562 CRYPTO_dbg_realloc()
5565 All macros of value have retained their old syntax.
5566 [Richard Levitte and Bodo Moeller]
5568 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5569 ordering of SMIMECapabilities wasn't in "strength order" and there
5570 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5574 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5575 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5576 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5578 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5579 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5580 functionality to handle multipart/signed properly) and a utility
5581 called 'smime' to call all this stuff. This is based on code I
5582 originally wrote for Celo who have kindly allowed it to be
5583 included in OpenSSL.
5586 *) Add variants des_set_key_checked and des_set_key_unchecked of
5587 des_set_key (aka des_key_sched). Global variable des_check_key
5588 decides which of these is called by des_set_key; this way
5589 des_check_key behaves as it always did, but applications and
5590 the library itself, which was buggy for des_check_key == 1,
5591 have a cleaner way to pick the version they need.
5594 *) New function PKCS12_newpass() which changes the password of a
5598 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5599 dynamic mix. In both cases the ids can be used as an index into the
5600 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5601 functions so they accept a list of the field values and the
5602 application doesn't need to directly manipulate the X509_TRUST
5606 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5610 *) Modify the way the V3 extension code looks up extensions. This now
5611 works in a similar way to the object code: we have some "standard"
5612 extensions in a static table which is searched with OBJ_bsearch()
5613 and the application can add dynamic ones if needed. The file
5614 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5615 updated whenever a new extension is added to the core code and kept
5616 in ext_nid order. There is a simple program 'tabtest.c' which checks
5617 this. New extensions are not added too often so this file can readily
5618 be maintained manually.
5620 There are two big advantages in doing things this way. The extensions
5621 can be looked up immediately and no longer need to be "added" using
5622 X509V3_add_standard_extensions(): this function now does nothing.
5623 [Side note: I get *lots* of email saying the extension code doesn't
5624 work because people forget to call this function]
5625 Also no dynamic allocation is done unless new extensions are added:
5626 so if we don't add custom extensions there is no need to call
5627 X509V3_EXT_cleanup().
5630 *) Modify enc utility's salting as follows: make salting the default. Add a
5631 magic header, so unsalted files fail gracefully instead of just decrypting
5632 to garbage. This is because not salting is a big security hole, so people
5633 should be discouraged from doing it.
5636 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5637 digest to be passed on the command line but it only used this
5638 parameter when signing a certificate. Modified so all relevant
5639 operations are affected by the digest parameter including the
5640 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5641 DSA key was used because it didn't fix the digest.
5644 *) Initial certificate chain verify code. Currently tests the untrusted
5645 certificates for consistency with the verify purpose (which is set
5646 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5648 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5649 this is because it will reject chains with invalid extensions whereas
5650 every previous version of OpenSSL and SSLeay made no checks at all.
5652 Trust code: checks the root CA for the relevant trust settings. Trust
5653 settings have an initial value consistent with the verify purpose: e.g.
5654 if the verify purpose is for SSL client use it expects the CA to be
5655 trusted for SSL client use. However the default value can be changed to
5656 permit custom trust settings: one example of this would be to only trust
5657 certificates from a specific "secure" set of CAs.
5659 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5660 which should be used for version portability: especially since the
5661 verify structure is likely to change more often now.
5663 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5664 to set them. If not set then assume SSL clients will verify SSL servers
5667 Two new options to the verify program: -untrusted allows a set of
5668 untrusted certificates to be passed in and -purpose which sets the
5669 intended purpose of the certificate. If a purpose is set then the
5670 new chain verify code is used to check extension consistency.
5673 *) Support for the authority information access extension.
5676 *) Modify RSA and DSA PEM read routines to transparently handle
5677 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5678 public keys in a format compatible with certificate
5679 SubjectPublicKeyInfo structures. Unfortunately there were already
5680 functions called *_PublicKey_* which used various odd formats so
5681 these are retained for compatibility: however the DSA variants were
5682 never in a public release so they have been deleted. Changed dsa/rsa
5683 utilities to handle the new format: note no releases ever handled public
5684 keys so we should be OK.
5686 The primary motivation for this change is to avoid the same fiasco
5687 that dogs private keys: there are several incompatible private key
5688 formats some of which are standard and some OpenSSL specific and
5689 require various evil hacks to allow partial transparent handling and
5690 even then it doesn't work with DER formats. Given the option anything
5691 other than PKCS#8 should be dumped: but the other formats have to
5692 stay in the name of compatibility.
5694 With public keys and the benefit of hindsight one standard format
5695 is used which works with EVP_PKEY, RSA or DSA structures: though
5696 it clearly returns an error if you try to read the wrong kind of key.
5698 Added a -pubkey option to the 'x509' utility to output the public key.
5699 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5700 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5701 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5702 that do the same as the EVP_PKEY_assign_*() except they up the
5703 reference count of the added key (they don't "swallow" the
5707 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5708 CRLs would fail if the file contained no certificates or no CRLs:
5709 added a new function to read in both types and return the number
5710 read: this means that if none are read it will be an error. The
5711 DER versions of the certificate and CRL reader would always fail
5712 because it isn't possible to mix certificates and CRLs in DER format
5713 without choking one or the other routine. Changed this to just read
5714 a certificate: this is the best we can do. Also modified the code
5715 in apps/verify.c to take notice of return codes: it was previously
5716 attempting to read in certificates from NULL pointers and ignoring
5717 any errors: this is one reason why the cert and CRL reader seemed
5718 to work. It doesn't check return codes from the default certificate
5719 routines: these may well fail if the certificates aren't installed.
5722 *) Code to support otherName option in GeneralName.
5725 *) First update to verify code. Change the verify utility
5726 so it warns if it is passed a self signed certificate:
5727 for consistency with the normal behaviour. X509_verify
5728 has been modified to it will now verify a self signed
5729 certificate if *exactly* the same certificate appears
5730 in the store: it was previously impossible to trust a
5731 single self signed certificate. This means that:
5732 openssl verify ss.pem
5733 now gives a warning about a self signed certificate but
5734 openssl verify -CAfile ss.pem ss.pem
5738 *) For servers, store verify_result in SSL_SESSION data structure
5739 (and add it to external session representation).
5740 This is needed when client certificate verifications fails,
5741 but an application-provided verification callback (set by
5742 SSL_CTX_set_cert_verify_callback) allows accepting the session
5743 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5744 but returns 1): When the session is reused, we have to set
5745 ssl->verify_result to the appropriate error code to avoid
5747 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5749 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5750 case in PKCS7_dataInit() where the signed PKCS7 structure
5751 didn't contain any existing data because it was being created.
5752 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5754 *) Add a salt to the key derivation routines in enc.c. This
5755 forms the first 8 bytes of the encrypted file. Also add a
5756 -S option to allow a salt to be input on the command line.
5759 *) New function X509_cmp(). Oddly enough there wasn't a function
5760 to compare two certificates. We do this by working out the SHA1
5761 hash and comparing that. X509_cmp() will be needed by the trust
5765 *) SSL_get1_session() is like SSL_get_session(), but increments
5766 the reference count in the SSL_SESSION returned.
5767 [Geoff Thorpe <geoff@eu.c2.net>]
5769 *) Fix for 'req': it was adding a null to request attributes.
5770 Also change the X509_LOOKUP and X509_INFO code to handle
5771 certificate auxiliary information.
5774 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5778 *) Add the possibility to add extra information to the memory leak
5779 detecting output, to form tracebacks, showing from where each
5780 allocation was originated: CRYPTO_push_info("constant string") adds
5781 the string plus current file name and line number to a per-thread
5782 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5783 is like calling CYRPTO_pop_info() until the stack is empty.
5784 Also updated memory leak detection code to be multi-thread-safe.
5787 *) Add options -text and -noout to pkcs7 utility and delete the
5788 encryption options which never did anything. Update docs.
5791 *) Add options to some of the utilities to allow the pass phrase
5792 to be included on either the command line (not recommended on
5793 OSes like Unix) or read from the environment. Update the
5794 manpages and fix a few bugs.
5797 *) Add a few manpages for some of the openssl commands.
5800 *) Fix the -revoke option in ca. It was freeing up memory twice,
5801 leaking and not finding already revoked certificates.
5804 *) Extensive changes to support certificate auxiliary information.
5805 This involves the use of X509_CERT_AUX structure and X509_AUX
5806 functions. An X509_AUX function such as PEM_read_X509_AUX()
5807 can still read in a certificate file in the usual way but it
5808 will also read in any additional "auxiliary information". By
5809 doing things this way a fair degree of compatibility can be
5810 retained: existing certificates can have this information added
5811 using the new 'x509' options.
5813 Current auxiliary information includes an "alias" and some trust
5814 settings. The trust settings will ultimately be used in enhanced
5815 certificate chain verification routines: currently a certificate
5816 can only be trusted if it is self signed and then it is trusted
5820 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5821 The problem was that one of the replacement routines had not been working
5822 since SSLeay releases. For now the offending routine has been replaced
5823 with non-optimised assembler. Even so, this now gives around 95%
5824 performance improvement for 1024 bit RSA signs.
5827 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5828 handling. Most clients have the effective key size in bits equal to
5829 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5830 A few however don't do this and instead use the size of the decrypted key
5831 to determine the RC2 key length and the AlgorithmIdentifier to determine
5832 the effective key length. In this case the effective key length can still
5833 be 40 bits but the key length can be 168 bits for example. This is fixed
5834 by manually forcing an RC2 key into the EVP_PKEY structure because the
5835 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5836 the key length and effective key length are equal.
5839 *) Add a bunch of functions that should simplify the creation of
5840 X509_NAME structures. Now you should be able to do:
5841 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5842 and have it automatically work out the correct field type and fill in
5843 the structures. The more adventurous can try:
5844 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5845 and it will (hopefully) work out the correct multibyte encoding.
5848 *) Change the 'req' utility to use the new field handling and multibyte
5849 copy routines. Before the DN field creation was handled in an ad hoc
5850 way in req, ca, and x509 which was rather broken and didn't support
5851 BMPStrings or UTF8Strings. Since some software doesn't implement
5852 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5853 using the dirstring_type option. See the new comment in the default
5854 openssl.cnf for more info.
5857 *) Make crypto/rand/md_rand.c more robust:
5858 - Assure unique random numbers after fork().
5859 - Make sure that concurrent threads access the global counter and
5860 md serializably so that we never lose entropy in them
5861 or use exactly the same state in multiple threads.
5862 Access to the large state is not always serializable because
5863 the additional locking could be a performance killer, and
5864 md should be large enough anyway.
5867 *) New file apps/app_rand.c with commonly needed functionality
5868 for handling the random seed file.
5870 Use the random seed file in some applications that previously did not:
5872 dsaparam -genkey (which also ignored its '-rand' option),
5875 x509 (when signing).
5876 Except on systems with /dev/urandom, it is crucial to have a random
5877 seed file at least for key creation, DSA signing, and for DH exchanges;
5878 for RSA signatures we could do without one.
5880 gendh and gendsa (unlike genrsa) used to read only the first byte
5881 of each file listed in the '-rand' option. The function as previously
5882 found in genrsa is now in app_rand.c and is used by all programs
5883 that support '-rand'.
5886 *) In RAND_write_file, use mode 0600 for creating files;
5887 don't just chmod when it may be too late.
5890 *) Report an error from X509_STORE_load_locations
5891 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5894 *) New function ASN1_mbstring_copy() this copies a string in either
5895 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5896 into an ASN1_STRING type. A mask of permissible types is passed
5897 and it chooses the "minimal" type to use or an error if not type
5901 *) Add function equivalents to the various macros in asn1.h. The old
5902 macros are retained with an M_ prefix. Code inside the library can
5903 use the M_ macros. External code (including the openssl utility)
5904 should *NOT* in order to be "shared library friendly".
5907 *) Add various functions that can check a certificate's extensions
5908 to see if it usable for various purposes such as SSL client,
5909 server or S/MIME and CAs of these types. This is currently
5910 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5911 verification. Also added a -purpose flag to x509 utility to
5912 print out all the purposes.
5915 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5919 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5920 for, obtain and decode and extension and obtain its critical flag.
5921 This allows all the necessary extension code to be handled in a
5922 single function call.
5925 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5926 platforms. See crypto/rc4/rc4_enc.c for further details.
5929 *) New -noout option to asn1parse. This causes no output to be produced
5930 its main use is when combined with -strparse and -out to extract data
5931 from a file (which may not be in ASN.1 format).
5934 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5935 when producing the local key id.
5936 [Richard Levitte <levitte@stacken.kth.se>]
5938 *) New option -dhparam in s_server. This allows a DH parameter file to be
5939 stated explicitly. If it is not stated then it tries the first server
5940 certificate file. The previous behaviour hard coded the filename
5944 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5945 a public key to be input or output. For example:
5946 openssl rsa -in key.pem -pubout -out pubkey.pem
5947 Also added necessary DSA public key functions to handle this.
5950 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5951 in the message. This was handled by allowing
5952 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5953 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5955 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5956 to the end of the strings whereas this didn't. This would cause problems
5957 if strings read with d2i_ASN1_bytes() were later modified.
5958 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5960 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5961 data and it contains EOF it will end up returning an error. This is
5962 caused by input 46 bytes long. The cause is due to the way base64
5963 BIOs find the start of base64 encoded data. They do this by trying a
5964 trial decode on each line until they find one that works. When they
5965 do a flag is set and it starts again knowing it can pass all the
5966 data directly through the decoder. Unfortunately it doesn't reset
5967 the context it uses. This means that if EOF is reached an attempt
5968 is made to pass two EOFs through the context and this causes the
5969 resulting error. This can also cause other problems as well. As is
5970 usual with these problems it takes *ages* to find and the fix is
5971 trivial: move one line.
5972 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5974 *) Ugly workaround to get s_client and s_server working under Windows. The
5975 old code wouldn't work because it needed to select() on sockets and the
5976 tty (for keypresses and to see if data could be written). Win32 only
5977 supports select() on sockets so we select() with a 1s timeout on the
5978 sockets and then see if any characters are waiting to be read, if none
5979 are present then we retry, we also assume we can always write data to
5980 the tty. This isn't nice because the code then blocks until we've
5981 received a complete line of data and it is effectively polling the
5982 keyboard at 1s intervals: however it's quite a bit better than not
5983 working at all :-) A dedicated Windows application might handle this
5984 with an event loop for example.
5987 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5988 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5989 will be called when RSA_sign() and RSA_verify() are used. This is useful
5990 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5991 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5992 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5993 This necessitated the support of an extra signature type NID_md5_sha1
5994 for SSL signatures and modifications to the SSL library to use it instead
5995 of calling RSA_public_decrypt() and RSA_private_encrypt().
5998 *) Add new -verify -CAfile and -CApath options to the crl program, these
5999 will lookup a CRL issuers certificate and verify the signature in a
6000 similar way to the verify program. Tidy up the crl program so it
6001 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6002 less strict. It will now permit CRL extensions even if it is not
6003 a V2 CRL: this will allow it to tolerate some broken CRLs.
6006 *) Initialize all non-automatic variables each time one of the openssl
6007 sub-programs is started (this is necessary as they may be started
6008 multiple times from the "OpenSSL>" prompt).
6009 [Lennart Bang, Bodo Moeller]
6011 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6012 removing all other RSA functionality (this is what NO_RSA does). This
6013 is so (for example) those in the US can disable those operations covered
6014 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6018 *) Non-copying interface to BIO pairs.
6019 (still largely untested)
6022 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6023 ASCII string. This was handled independently in various places before.
6026 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6027 UTF8 strings a character at a time.
6030 *) Use client_version from client hello to select the protocol
6031 (s23_srvr.c) and for RSA client key exchange verification
6032 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6035 *) Add various utility functions to handle SPKACs, these were previously
6036 handled by poking round in the structure internals. Added new function
6037 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6038 print, verify and generate SPKACs. Based on an original idea from
6039 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6042 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6045 *) Allow the config file extension section to be overwritten on the
6046 command line. Based on an original idea from Massimiliano Pala
6047 <madwolf@comune.modena.it>. The new option is called -extensions
6048 and can be applied to ca, req and x509. Also -reqexts to override
6049 the request extensions in req and -crlexts to override the crl extensions
6053 *) Add new feature to the SPKAC handling in ca. Now you can include
6054 the same field multiple times by preceding it by "XXXX." for example:
6057 this is the same syntax as used in the req config file.
6060 *) Allow certificate extensions to be added to certificate requests. These
6061 are specified in a 'req_extensions' option of the req section of the
6062 config file. They can be printed out with the -text option to req but
6063 are otherwise ignored at present.
6066 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6067 data read consists of only the final block it would not decrypted because
6068 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6069 A misplaced 'break' also meant the decrypted final block might not be
6070 copied until the next read.
6073 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6074 a few extra parameters to the DH structure: these will be useful if
6075 for example we want the value of 'q' or implement X9.42 DH.
6078 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6079 provides hooks that allow the default DSA functions or functions on a
6080 "per key" basis to be replaced. This allows hardware acceleration and
6081 hardware key storage to be handled without major modification to the
6082 library. Also added low level modexp hooks and CRYPTO_EX structure and
6083 associated functions.
6086 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6087 as "read only": it can't be written to and the buffer it points to will
6088 not be freed. Reading from a read only BIO is much more efficient than
6089 a normal memory BIO. This was added because there are several times when
6090 an area of memory needs to be read from a BIO. The previous method was
6091 to create a memory BIO and write the data to it, this results in two
6092 copies of the data and an O(n^2) reading algorithm. There is a new
6093 function BIO_new_mem_buf() which creates a read only memory BIO from
6094 an area of memory. Also modified the PKCS#7 routines to use read only
6098 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6099 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6100 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6101 but a retry condition occured while trying to read the rest.
6104 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6105 NID_pkcs7_encrypted by default: this was wrong since this should almost
6106 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6107 the encrypted data type: this is a more sensible place to put it and it
6108 allows the PKCS#12 code to be tidied up that duplicated this
6112 *) Changed obj_dat.pl script so it takes its input and output files on
6113 the command line. This should avoid shell escape redirection problems
6117 *) Initial support for certificate extension requests, these are included
6118 in things like Xenroll certificate requests. Included functions to allow
6119 extensions to be obtained and added.
6122 *) -crlf option to s_client and s_server for sending newlines as
6123 CRLF (as required by many protocols).
6126 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6128 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6129 [Ralf S. Engelschall]
6131 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6132 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6134 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6138 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6139 DH parameters/keys (q is lost during that conversion, but the resulting
6140 DH parameters contain its length).
6142 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6143 much faster than DH_generate_parameters (which creates parameters
6144 where p = 2*q + 1), and also the smaller q makes DH computations
6145 much more efficient (160-bit exponentiation instead of 1024-bit
6146 exponentiation); so this provides a convenient way to support DHE
6147 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6148 utter importance to use
6149 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6151 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6152 when such DH parameters are used, because otherwise small subgroup
6153 attacks may become possible!
6156 *) Avoid memory leak in i2d_DHparams.
6159 *) Allow the -k option to be used more than once in the enc program:
6160 this allows the same encrypted message to be read by multiple recipients.
6163 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6164 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6165 it will always use the numerical form of the OID, even if it has a short
6169 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6170 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6171 otherwise bn_mod_exp was called. In the case of hardware keys for example
6172 no private key components need be present and it might store extra data
6173 in the RSA structure, which cannot be accessed from bn_mod_exp.
6174 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6175 private key operations.
6178 *) Added support for SPARC Linux.
6181 *) pem_password_cb function type incompatibly changed from
6182 typedef int pem_password_cb(char *buf, int size, int rwflag);
6184 ....(char *buf, int size, int rwflag, void *userdata);
6185 so that applications can pass data to their callbacks:
6186 The PEM[_ASN1]_{read,write}... functions and macros now take an
6187 additional void * argument, which is just handed through whenever
6188 the password callback is called.
6189 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6191 New function SSL_CTX_set_default_passwd_cb_userdata.
6193 Compatibility note: As many C implementations push function arguments
6194 onto the stack in reverse order, the new library version is likely to
6195 interoperate with programs that have been compiled with the old
6196 pem_password_cb definition (PEM_whatever takes some data that
6197 happens to be on the stack as its last argument, and the callback
6198 just ignores this garbage); but there is no guarantee whatsoever that
6201 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6202 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6203 problems not only on Windows, but also on some Unix platforms.
6204 To avoid problematic command lines, these definitions are now in an
6205 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6206 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6209 *) MIPS III/IV assembler module is reimplemented.
6212 *) More DES library cleanups: remove references to srand/rand and
6213 delete an unused file.
6216 *) Add support for the the free Netwide assembler (NASM) under Win32,
6217 since not many people have MASM (ml) and it can be hard to obtain.
6218 This is currently experimental but it seems to work OK and pass all
6219 the tests. Check out INSTALL.W32 for info.
6222 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6223 without temporary keys kept an extra copy of the server key,
6224 and connections with temporary keys did not free everything in case
6228 *) New function RSA_check_key and new openssl rsa option -check
6229 for verifying the consistency of RSA keys.
6230 [Ulf Moeller, Bodo Moeller]
6232 *) Various changes to make Win32 compile work:
6233 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6234 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6235 comparison" warnings.
6236 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6239 *) Add a debugging option to PKCS#5 v2 key generation function: when
6240 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6241 derived keys are printed to stderr.
6244 *) Copy the flags in ASN1_STRING_dup().
6245 [Roman E. Pavlov <pre@mo.msk.ru>]
6247 *) The x509 application mishandled signing requests containing DSA
6248 keys when the signing key was also DSA and the parameters didn't match.
6250 It was supposed to omit the parameters when they matched the signing key:
6251 the verifying software was then supposed to automatically use the CA's
6252 parameters if they were absent from the end user certificate.
6254 Omitting parameters is no longer recommended. The test was also
6255 the wrong way round! This was probably due to unusual behaviour in
6256 EVP_cmp_parameters() which returns 1 if the parameters match.
6257 This meant that parameters were omitted when they *didn't* match and
6258 the certificate was useless. Certificates signed with 'ca' didn't have
6260 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6262 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6263 The interface is as follows:
6264 Applications can use
6265 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6266 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6267 "off" is now the default.
6268 The library internally uses
6269 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6270 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6271 to disable memory-checking temporarily.
6273 Some inconsistent states that previously were possible (and were
6274 even the default) are now avoided.
6276 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6277 with each memory chunk allocated; this is occasionally more helpful
6278 than just having a counter.
6280 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6282 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6286 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6287 which largely parallels "options", but is for changing API behaviour,
6288 whereas "options" are about protocol behaviour.
6289 Initial "mode" flags are:
6291 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6292 a single record has been written.
6293 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6294 retries use the same buffer location.
6295 (But all of the contents must be
6299 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6302 *) Fix problems with no-hmac etc.
6303 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6305 *) New functions RSA_get_default_method(), RSA_set_method() and
6306 RSA_get_method(). These allows replacement of RSA_METHODs without having
6307 to mess around with the internals of an RSA structure.
6310 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6311 Also really enable memory leak checks in openssl.c and in some
6313 [Chad C. Mulligan, Bodo Moeller]
6315 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6316 up the length of negative integers. This has now been simplified to just
6317 store the length when it is first determined and use it later, rather
6318 than trying to keep track of where data is copied and updating it to
6320 [Steve Henson, reported by Brien Wheeler
6321 <bwheeler@authentica-security.com>]
6323 *) Add a new function PKCS7_signatureVerify. This allows the verification
6324 of a PKCS#7 signature but with the signing certificate passed to the
6325 function itself. This contrasts with PKCS7_dataVerify which assumes the
6326 certificate is present in the PKCS#7 structure. This isn't always the
6327 case: certificates can be omitted from a PKCS#7 structure and be
6328 distributed by "out of band" means (such as a certificate database).
6331 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6332 function prototypes in pem.h, also change util/mkdef.pl to add the
6333 necessary function names.
6336 *) mk1mf.pl (used by Windows builds) did not properly read the
6337 options set by Configure in the top level Makefile, and Configure
6338 was not even able to write more than one option correctly.
6339 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6342 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6343 file to be loaded from a BIO or FILE pointer. The BIO version will
6344 for example allow memory BIOs to contain config info.
6347 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6348 Whoever hopes to achieve shared-library compatibility across versions
6349 must use this, not the compile-time macro.
6350 (Exercise 0.9.4: Which is the minimum library version required by
6352 Note: All this applies only to multi-threaded programs, others don't
6356 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6357 through a BIO pair triggered the default case, i.e.
6358 SSLerr(...,SSL_R_UNKNOWN_STATE).
6361 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6362 can use the SSL library even if none of the specific BIOs is
6366 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6367 for the encoded length.
6368 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6370 *) Add initial documentation of the X509V3 functions.
6373 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6374 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6375 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6376 secure PKCS#8 private key format with a high iteration count.
6379 *) Fix determination of Perl interpreter: A perl or perl5
6380 _directory_ in $PATH was also accepted as the interpreter.
6381 [Ralf S. Engelschall]
6383 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6384 wrong with it but it was very old and did things like calling
6385 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6389 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6390 to use the new extension code.
6393 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6394 with macros. This should make it easier to change their form, add extra
6395 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6399 *) Add to configuration table a new entry that can specify an alternative
6400 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6401 according to Mark Crispin <MRC@Panda.COM>.
6405 *) DES CBC did not update the IV. Weird.
6408 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6409 Changing the behaviour of the former might break existing programs --
6410 where IV updating is needed, des_ncbc_encrypt can be used.
6413 *) When bntest is run from "make test" it drives bc to check its
6414 calculations, as well as internally checking them. If an internal check
6415 fails, it needs to cause bc to give a non-zero result or make test carries
6416 on without noticing the failure. Fixed.
6419 *) DES library cleanups.
6422 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6423 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6424 ciphers. NOTE: although the key derivation function has been verified
6425 against some published test vectors it has not been extensively tested
6426 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6430 *) Instead of "mkdir -p", which is not fully portable, use new
6431 Perl script "util/mkdir-p.pl".
6434 *) Rewrite the way password based encryption (PBE) is handled. It used to
6435 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6436 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6437 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6438 the 'parameter' field of the AlgorithmIdentifier is passed to the
6439 underlying key generation function so it must do its own ASN1 parsing.
6440 This has also changed the EVP_PBE_CipherInit() function which now has a
6441 'parameter' argument instead of literal salt and iteration count values
6442 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6445 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6446 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6447 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6448 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6449 value was just used as a "magic string" and not used directly its
6450 value doesn't matter.
6453 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6457 *) "linux-sparc64" configuration (ultrapenguin).
6458 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6459 "linux-sparc" configuration.
6460 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6462 *) config now generates no-xxx options for missing ciphers.
6465 *) Support the EBCDIC character set (work in progress).
6466 File ebcdic.c not yet included because it has a different license.
6467 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6469 *) Support BS2000/OSD-POSIX.
6470 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6472 *) Make callbacks for key generation use void * instead of char *.
6475 *) Make S/MIME samples compile (not yet tested).
6478 *) Additional typesafe stacks.
6481 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6485 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6487 *) New configuration variant "sco5-gcc".
6489 *) Updated some demos.
6490 [Sean O Riordain, Wade Scholine]
6492 *) Add missing BIO_free at exit of pkcs12 application.
6495 *) Fix memory leak in conf.c.
6498 *) Updates for Win32 to assembler version of MD5.
6501 *) Set #! path to perl in apps/der_chop to where we found it
6502 instead of using a fixed path.
6505 *) SHA library changes for irix64-mips4-cc.
6508 *) Improvements for VMS support.
6512 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6514 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6515 This also avoids the problems with SC4.2 and unpatched SC5.
6516 [Andy Polyakov <appro@fy.chalmers.se>]
6518 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6519 These are required because of the typesafe stack would otherwise break
6520 existing code. If old code used a structure member which used to be STACK
6521 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6522 sk_num or sk_value it would produce an error because the num, data members
6523 are not present in STACK_OF. Now it just produces a warning. sk_set
6524 replaces the old method of assigning a value to sk_value
6525 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6526 that does this will no longer work (and should use sk_set instead) but
6527 this could be regarded as a "questionable" behaviour anyway.
6530 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6531 correctly handle encrypted S/MIME data.
6534 *) Change type of various DES function arguments from des_cblock
6535 (which means, in function argument declarations, pointer to char)
6536 to des_cblock * (meaning pointer to array with 8 char elements),
6537 which allows the compiler to do more typechecking; it was like
6538 that back in SSLeay, but with lots of ugly casts.
6540 Introduce new type const_des_cblock.
6543 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6544 problems: find RecipientInfo structure that matches recipient certificate
6545 and initialise the ASN1 structures properly based on passed cipher.
6548 *) Belatedly make the BN tests actually check the results.
6551 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6552 to and from BNs: it was completely broken. New compilation option
6553 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6554 key elements as negative integers.
6557 *) Reorganize and speed up MD5.
6558 [Andy Polyakov <appro@fy.chalmers.se>]
6561 [Richard Levitte <richard@levitte.org>]
6563 *) New option -out to asn1parse to allow the parsed structure to be
6564 output to a file. This is most useful when combined with the -strparse
6565 option to examine the output of things like OCTET STRINGS.
6568 *) Make SSL library a little more fool-proof by not requiring any longer
6569 that SSL_set_{accept,connect}_state be called before
6570 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6571 in many applications because usually everything *appeared* to work as
6572 intended anyway -- now it really works as intended).
6575 *) Move openssl.cnf out of lib/.
6578 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6579 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6580 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6581 [Ralf S. Engelschall]
6583 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6584 handle PKCS#7 enveloped data properly.
6585 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6587 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6588 copying pointers. The cert_st handling is changed by this in
6589 various ways (and thus what used to be known as ctx->default_cert
6590 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6591 any longer when s->cert does not give us what we need).
6592 ssl_cert_instantiate becomes obsolete by this change.
6593 As soon as we've got the new code right (possibly it already is?),
6594 we have solved a couple of bugs of the earlier code where s->cert
6595 was used as if it could not have been shared with other SSL structures.
6597 Note that using the SSL API in certain dirty ways now will result
6598 in different behaviour than observed with earlier library versions:
6599 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6600 does not influence s as it used to.
6602 In order to clean up things more thoroughly, inside SSL_SESSION
6603 we don't use CERT any longer, but a new structure SESS_CERT
6604 that holds per-session data (if available); currently, this is
6605 the peer's certificate chain and, for clients, the server's certificate
6606 and temporary key. CERT holds only those values that can have
6607 meaningful defaults in an SSL_CTX.
6610 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6611 from the internal representation. Various PKCS#7 fixes: remove some
6612 evil casts and set the enc_dig_alg field properly based on the signing
6616 *) Allow PKCS#12 password to be set from the command line or the
6617 environment. Let 'ca' get its config file name from the environment
6618 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6622 *) Allow certificate policies extension to use an IA5STRING for the
6623 organization field. This is contrary to the PKIX definition but
6624 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6628 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6629 without disallowing inline assembler and the like for non-pedantic builds.
6632 *) Support Borland C++ builder.
6633 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6638 *) SHA-1 cleanups and performance enhancements.
6639 [Andy Polyakov <appro@fy.chalmers.se>]
6641 *) Sparc v8plus assembler for the bignum library.
6642 [Andy Polyakov <appro@fy.chalmers.se>]
6644 *) Accept any -xxx and +xxx compiler options in Configure.
6647 *) Update HPUX configuration.
6650 *) Add missing sk_<type>_unshift() function to safestack.h
6651 [Ralf S. Engelschall]
6653 *) New function SSL_CTX_use_certificate_chain_file that sets the
6654 "extra_cert"s in addition to the certificate. (This makes sense
6655 only for "PEM" format files, as chains as a whole are not
6659 *) Support verify_depth from the SSL API.
6660 x509_vfy.c had what can be considered an off-by-one-error:
6661 Its depth (which was not part of the external interface)
6662 was actually counting the number of certificates in a chain;
6663 now it really counts the depth.
6666 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6667 instead of X509err, which often resulted in confusing error
6668 messages since the error codes are not globally unique
6669 (e.g. an alleged error in ssl3_accept when a certificate
6670 didn't match the private key).
6672 *) New function SSL_CTX_set_session_id_context that allows to set a default
6673 value (so that you don't need SSL_set_session_id_context for each
6674 connection using the SSL_CTX).
6677 *) OAEP decoding bug fix.
6680 *) Support INSTALL_PREFIX for package builders, as proposed by
6684 *) New Configure options "threads" and "no-threads". For systems
6685 where the proper compiler options are known (currently Solaris
6686 and Linux), "threads" is the default.
6689 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6692 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6693 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6694 such as /usr/local/bin.
6697 *) "make linux-shared" to build shared libraries.
6698 [Niels Poppe <niels@netbox.org>]
6700 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6703 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6704 extension adding in x509 utility.
6707 *) Remove NOPROTO sections and error code comments.
6710 *) Partial rewrite of the DEF file generator to now parse the ANSI
6714 *) New Configure options --prefix=DIR and --openssldir=DIR.
6717 *) Complete rewrite of the error code script(s). It is all now handled
6718 by one script at the top level which handles error code gathering,
6719 header rewriting and C source file generation. It should be much better
6720 than the old method: it now uses a modified version of Ulf's parser to
6721 read the ANSI prototypes in all header files (thus the old K&R definitions
6722 aren't needed for error creation any more) and do a better job of
6723 translating function codes into names. The old 'ASN1 error code imbedded
6724 in a comment' is no longer necessary and it doesn't use .err files which
6725 have now been deleted. Also the error code call doesn't have to appear all
6726 on one line (which resulted in some large lines...).
6729 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6732 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6733 0 (which usually indicates a closed connection), but continue reading.
6736 *) Fix some race conditions.
6739 *) Add support for CRL distribution points extension. Add Certificate
6740 Policies and CRL distribution points documentation.
6743 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6746 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6747 8 of keying material. Merlin has also confirmed interop with this fix
6748 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6749 [Merlin Hughes <merlin@baltimore.ie>]
6751 *) Fix lots of warnings.
6752 [Richard Levitte <levitte@stacken.kth.se>]
6754 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6755 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6756 [Richard Levitte <levitte@stacken.kth.se>]
6758 *) Fix problems with sizeof(long) == 8.
6759 [Andy Polyakov <appro@fy.chalmers.se>]
6761 *) Change functions to ANSI C.
6764 *) Fix typos in error codes.
6765 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6767 *) Remove defunct assembler files from Configure.
6770 *) SPARC v8 assembler BIGNUM implementation.
6771 [Andy Polyakov <appro@fy.chalmers.se>]
6773 *) Support for Certificate Policies extension: both print and set.
6774 Various additions to support the r2i method this uses.
6777 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6778 return a const string when you are expecting an allocated buffer.
6781 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6782 types DirectoryString and DisplayText.
6785 *) Add code to allow r2i extensions to access the configuration database,
6786 add an LHASH database driver and add several ctx helper functions.
6789 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6790 fail when they extended the size of a BIGNUM.
6793 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6794 support typesafe stack.
6797 *) Fix typo in SSL_[gs]et_options().
6798 [Nils Frostberg <nils@medcom.se>]
6800 *) Delete various functions and files that belonged to the (now obsolete)
6801 old X509V3 handling code.
6804 *) New Configure option "rsaref".
6807 *) Don't auto-generate pem.h.
6810 *) Introduce type-safe ASN.1 SETs.
6813 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6814 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6816 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6817 that links with OpenSSL (well at least cause lots of warnings), but fear
6818 not: the conversion is trivial, and it eliminates loads of evil casts. A
6819 few STACKed things have been converted already. Feel free to convert more.
6820 In the fullness of time, I'll do away with the STACK type altogether.
6823 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6824 specified in <certfile> by updating the entry in the index.txt file.
6825 This way one no longer has to edit the index.txt file manually for
6826 revoking a certificate. The -revoke option does the gory details now.
6827 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6829 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6830 `-text' option at all and this way the `-noout -text' combination was
6831 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6832 [Ralf S. Engelschall]
6834 *) Make sure a corresponding plain text error message exists for the
6835 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6836 verify callback function determined that a certificate was revoked.
6837 [Ralf S. Engelschall]
6839 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6840 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6841 all available cipers including rc5, which was forgotten until now.
6842 In order to let the testing shell script know which algorithms
6843 are available, a new (up to now undocumented) command
6844 "openssl list-cipher-commands" is used.
6847 *) Bugfix: s_client occasionally would sleep in select() when
6848 it should have checked SSL_pending() first.
6851 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6852 the raw DSA values prior to ASN.1 encoding.
6855 *) Tweaks to Configure
6856 [Niels Poppe <niels@netbox.org>]
6858 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6862 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6865 *) New config option to avoid instructions that are illegal on the 80386.
6866 The default code is faster, but requires at least a 486.
6869 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6870 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6871 same as SSL2_VERSION anyway.
6874 *) New "-showcerts" option for s_client.
6877 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6878 application. Various cleanups and fixes.
6881 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6882 modify error routines to work internally. Add error codes and PBE init
6883 to library startup routines.
6886 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6887 packing functions to asn1 and evp. Changed function names and error
6888 codes along the way.
6891 *) PKCS12 integration: and so it begins... First of several patches to
6892 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6893 objects to objects.h
6896 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6897 and display support for Thawte strong extranet extension.
6900 *) Add LinuxPPC support.
6901 [Jeff Dubrule <igor@pobox.org>]
6903 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6904 bn_div_words in alpha.s.
6905 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6907 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6908 OAEP isn't supported when OpenSSL is built with RSAref.
6909 [Ulf Moeller <ulf@fitug.de>]
6911 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6912 so they no longer are missing under -DNOPROTO.
6913 [Soren S. Jorvang <soren@t.dk>]
6916 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6918 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6919 doesn't work when the session is reused. Coming soon!
6922 *) Fix a security hole, that allows sessions to be reused in the wrong
6923 context thus bypassing client cert protection! All software that uses
6924 client certs and session caches in multiple contexts NEEDS PATCHING to
6925 allow session reuse! A fuller solution is in the works.
6926 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6928 *) Some more source tree cleanups (removed obsolete files
6929 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6930 permission on "config" script to be executable) and a fix for the INSTALL
6932 [Ulf Moeller <ulf@fitug.de>]
6934 *) Remove some legacy and erroneous uses of malloc, free instead of
6936 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6938 *) Make rsa_oaep_test return non-zero on error.
6939 [Ulf Moeller <ulf@fitug.de>]
6941 *) Add support for native Solaris shared libraries. Configure
6942 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6943 if someone would make that last step automatic.
6944 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6946 *) ctx_size was not built with the right compiler during "make links". Fixed.
6949 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6950 except NULL ciphers". This means the default cipher list will no longer
6951 enable NULL ciphers. They need to be specifically enabled e.g. with
6952 the string "DEFAULT:eNULL".
6955 *) Fix to RSA private encryption routines: if p < q then it would
6956 occasionally produce an invalid result. This will only happen with
6957 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6960 *) Be less restrictive and allow also `perl util/perlpath.pl
6961 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6962 because this way one can also use an interpreter named `perl5' (which is
6963 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6964 installed as `perl').
6965 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6967 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6968 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6970 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6971 advapi32.lib to Win32 build and change the pem test comparision
6972 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6973 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6974 and crypto/des/ede_cbcm_enc.c.
6977 *) DES quad checksum was broken on big-endian architectures. Fixed.
6980 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6981 Win32 test batch file so it (might) work again. The Win32 test batch file
6982 is horrible: I feel ill....
6985 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6986 in e_os.h. Audit of header files to check ANSI and non ANSI
6987 sections: 10 functions were absent from non ANSI section and not exported
6988 from Windows DLLs. Fixed up libeay.num for new functions.
6991 *) Make `openssl version' output lines consistent.
6992 [Ralf S. Engelschall]
6994 *) Fix Win32 symbol export lists for BIO functions: Added
6995 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6996 to ms/libeay{16,32}.def.
6997 [Ralf S. Engelschall]
6999 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7000 fine under Unix and passes some trivial tests I've now added. But the
7001 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7002 added to make sure no one expects that this stuff really works in the
7003 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7004 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7006 [Ralf S. Engelschall]
7008 *) Fix the generation of two part addresses in perl.
7009 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7011 *) Add config entry for Linux on MIPS.
7012 [John Tobey <jtobey@channel1.com>]
7014 *) Make links whenever Configure is run, unless we are on Windoze.
7017 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7018 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7022 *) Add a useful kludge to allow package maintainers to specify compiler and
7023 other platforms details on the command line without having to patch the
7024 Configure script everytime: One now can use ``perl Configure
7025 <id>:<details>'', i.e. platform ids are allowed to have details appended
7026 to them (seperated by colons). This is treated as there would be a static
7027 pre-configured entry in Configure's %table under key <id> with value
7028 <details> and ``perl Configure <id>'' is called. So, when you want to
7029 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7030 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7031 now, which overrides the FreeBSD-elf entry on-the-fly.
7032 [Ralf S. Engelschall]
7034 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7037 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7038 on the `perl Configure ...' command line. This way one can compile
7039 OpenSSL libraries with Position Independent Code (PIC) which is needed
7040 for linking it into DSOs.
7041 [Ralf S. Engelschall]
7043 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7047 *) Cleaned up the LICENSE document: The official contact for any license
7048 questions now is the OpenSSL core team under openssl-core@openssl.org.
7049 And add a paragraph about the dual-license situation to make sure people
7050 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7051 to the OpenSSL toolkit.
7052 [Ralf S. Engelschall]
7054 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7055 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7056 Additonally cleaned up the `make links' target: Remove unnecessary
7057 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7058 to speed processing and no longer clutter the display with confusing
7059 stuff. Instead only the actually done links are displayed.
7060 [Ralf S. Engelschall]
7062 *) Permit null encryption ciphersuites, used for authentication only. It used
7063 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7064 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7068 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7069 signed attributes when verifying signatures (this would break them),
7070 the detached data encoding was wrong and public keys obtained using
7071 X509_get_pubkey() weren't freed.
7074 *) Add text documentation for the BUFFER functions. Also added a work around
7075 to a Win95 console bug. This was triggered by the password read stuff: the
7076 last character typed gets carried over to the next fread(). If you were
7077 generating a new cert request using 'req' for example then the last
7078 character of the passphrase would be CR which would then enter the first
7082 *) Added the new `Includes OpenSSL Cryptography Software' button as
7083 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7084 button and can be used by applications based on OpenSSL to show the
7085 relationship to the OpenSSL project.
7086 [Ralf S. Engelschall]
7088 *) Remove confusing variables in function signatures in files
7089 ssl/ssl_lib.c and ssl/ssl.h.
7090 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7092 *) Don't install bss_file.c under PREFIX/include/
7093 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7095 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7096 functions that return function pointers and has support for NT specific
7097 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7098 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7099 unsigned to signed types: this was killing the Win32 compile.
7102 *) Add new certificate file to stack functions,
7103 SSL_add_dir_cert_subjects_to_stack() and
7104 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7105 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7106 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7107 This means that Apache-SSL and similar packages don't have to mess around
7108 to add as many CAs as they want to the preferred list.
7111 *) Experiment with doxygen documentation. Currently only partially applied to
7113 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7114 openssl.doxy as the configuration file.
7117 *) Get rid of remaining C++-style comments which strict C compilers hate.
7118 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7120 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7121 compiled in by default: it has problems with large keys.
7124 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7125 DH private keys and/or callback functions which directly correspond to
7126 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7127 is needed for applications which have to configure certificates on a
7128 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7130 For the RSA certificate situation is makes no difference, but
7131 for the DSA certificate situation this fixes the "no shared cipher"
7132 problem where the OpenSSL cipher selection procedure failed because the
7133 temporary keys were not overtaken from the context and the API provided
7134 no way to reconfigure them.
7135 The new functions now let applications reconfigure the stuff and they
7136 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7137 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7138 non-public-API function ssl_cert_instantiate() is used as a helper
7139 function and also to reduce code redundancy inside ssl_rsa.c.
7140 [Ralf S. Engelschall]
7142 *) Move s_server -dcert and -dkey options out of the undocumented feature
7143 area because they are useful for the DSA situation and should be
7144 recognized by the users.
7145 [Ralf S. Engelschall]
7147 *) Fix the cipher decision scheme for export ciphers: the export bits are
7148 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7149 SSL_EXP_MASK. So, the original variable has to be used instead of the
7150 already masked variable.
7151 [Richard Levitte <levitte@stacken.kth.se>]
7153 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7154 [Richard Levitte <levitte@stacken.kth.se>]
7156 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7157 from `int' to `unsigned int' because it's a length and initialized by
7158 EVP_DigestFinal() which expects an `unsigned int *'.
7159 [Richard Levitte <levitte@stacken.kth.se>]
7161 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7162 script. Instead use the usual Shell->Perl transition trick.
7163 [Ralf S. Engelschall]
7165 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7166 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7167 -noout -modulus' as it's already the case for `openssl rsa -noout
7168 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7169 currently the public key is printed (a decision which was already done by
7170 `openssl dsa -modulus' in the past) which serves a similar purpose.
7171 Additionally the NO_RSA no longer completely removes the whole -modulus
7172 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7174 [Ralf S. Engelschall]
7176 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7177 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7178 [Arne Ansper <arne@ats.cyber.ee>]
7180 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7181 to be added. Now both 'req' and 'ca' can use new objects defined in the
7185 *) Add cool BIO that does syslog (or event log on NT).
7186 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7188 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7189 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7190 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7191 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7194 *) Add preliminary config info for new extension code.
7197 *) Make RSA_NO_PADDING really use no padding.
7198 [Ulf Moeller <ulf@fitug.de>]
7200 *) Generate errors when private/public key check is done.
7203 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7204 for some CRL extensions and new objects added.
7207 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7208 key usage extension and fuller support for authority key id.
7211 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7212 padding method for RSA, which is recommended for new applications in PKCS
7213 #1 v2.0 (RFC 2437, October 1998).
7214 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7215 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7216 against Bleichbacher's attack on RSA.
7217 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7220 *) Updates to the new SSL compression code
7221 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7223 *) Fix so that the version number in the master secret, when passed
7224 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7225 (because the server will not accept higher), that the version number
7226 is 0x03,0x01, not 0x03,0x00
7227 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7229 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7230 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7231 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7234 *) Support for RAW extensions where an arbitrary extension can be
7235 created by including its DER encoding. See apps/openssl.cnf for
7239 *) Make sure latest Perl versions don't interpret some generated C array
7240 code as Perl array code in the crypto/err/err_genc.pl script.
7241 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7243 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7244 not many people have the assembler. Various Win32 compilation fixes and
7245 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7249 *) Modify configure script 'Configure' to automatically create crypto/date.h
7250 file under Win32 and also build pem.h from pem.org. New script
7251 util/mkfiles.pl to create the MINFO file on environments that can't do a
7252 'make files': perl util/mkfiles.pl >MINFO should work.
7255 *) Major rework of DES function declarations, in the pursuit of correctness
7256 and purity. As a result, many evil casts evaporated, and some weirdness,
7257 too. You may find this causes warnings in your code. Zapping your evil
7258 casts will probably fix them. Mostly.
7261 *) Fix for a typo in asn1.h. Bug fix to object creation script
7262 obj_dat.pl. It considered a zero in an object definition to mean
7263 "end of object": none of the objects in objects.h have any zeros
7264 so it wasn't spotted.
7265 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7267 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7268 Masking (CBCM). In the absence of test vectors, the best I have been able
7269 to do is check that the decrypt undoes the encrypt, so far. Send me test
7270 vectors if you have them.
7273 *) Correct calculation of key length for export ciphers (too much space was
7274 allocated for null ciphers). This has not been tested!
7277 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7278 message is now correct (it understands "crypto" and "ssl" on its
7279 command line). There is also now an "update" option. This will update
7280 the util/ssleay.num and util/libeay.num files with any new functions.
7282 perl util/mkdef.pl crypto ssl update
7283 it will update them.
7286 *) Overhauled the Perl interface (perl/*):
7287 - ported BN stuff to OpenSSL's different BN library
7288 - made the perl/ source tree CVS-aware
7289 - renamed the package from SSLeay to OpenSSL (the files still contain
7290 their history because I've copied them in the repository)
7291 - removed obsolete files (the test scripts will be replaced
7292 by better Test::Harness variants in the future)
7293 [Ralf S. Engelschall]
7295 *) First cut for a very conservative source tree cleanup:
7296 1. merge various obsolete readme texts into doc/ssleay.txt
7297 where we collect the old documents and readme texts.
7298 2. remove the first part of files where I'm already sure that we no
7299 longer need them because of three reasons: either they are just temporary
7300 files which were left by Eric or they are preserved original files where
7301 I've verified that the diff is also available in the CVS via "cvs diff
7302 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7303 the crypto/md/ stuff).
7304 [Ralf S. Engelschall]
7306 *) More extension code. Incomplete support for subject and issuer alt
7307 name, issuer and authority key id. Change the i2v function parameters
7308 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7309 what that's for :-) Fix to ASN1 macro which messed up
7310 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7313 *) Preliminary support for ENUMERATED type. This is largely copied from the
7317 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7318 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7320 *) Make sure `make rehash' target really finds the `openssl' program.
7321 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7323 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7324 like to hear about it if this slows down other processors.
7327 *) Add CygWin32 platform information to Configure script.
7328 [Alan Batie <batie@aahz.jf.intel.com>]
7330 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7331 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7333 *) New program nseq to manipulate netscape certificate sequences
7336 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7340 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7341 but the BN code had some problems that would cause failures when
7342 doing certificate verification and some other functions.
7343 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7345 *) Add ASN1 and PEM code to support netscape certificate sequences.
7348 *) Add ASN1 and PEM code to support netscape certificate sequences.
7351 *) Add several PKIX and private extended key usage OIDs.
7354 *) Modify the 'ca' program to handle the new extension code. Modify
7355 openssl.cnf for new extension format, add comments.
7358 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7359 and add a sample to openssl.cnf so req -x509 now adds appropriate
7363 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7364 error code, add initial support to X509_print() and x509 application.
7367 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7368 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7369 stuff is currently isolated and isn't even compiled yet.
7372 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7373 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7374 Removed the versions check from X509 routines when loading extensions:
7375 this allows certain broken certificates that don't set the version
7376 properly to be processed.
7379 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7380 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7381 can still be regenerated with "make depend".
7384 *) Spelling mistake in C version of CAST-128.
7385 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7387 *) Changes to the error generation code. The perl script err-code.pl
7388 now reads in the old error codes and retains the old numbers, only
7389 adding new ones if necessary. It also only changes the .err files if new
7390 codes are added. The makefiles have been modified to only insert errors
7391 when needed (to avoid needlessly modifying header files). This is done
7392 by only inserting errors if the .err file is newer than the auto generated
7393 C file. To rebuild all the error codes from scratch (the old behaviour)
7394 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7395 or delete all the .err files.
7398 *) CAST-128 was incorrectly implemented for short keys. The C version has
7399 been fixed, but is untested. The assembler versions are also fixed, but
7400 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7401 to regenerate it if needed.
7402 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7403 Hagino <itojun@kame.net>]
7405 *) File was opened incorrectly in randfile.c.
7406 [Ulf Möller <ulf@fitug.de>]
7408 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7409 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7410 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7411 al: it's just almost always a UTCTime. Note this patch adds new error
7412 codes so do a "make errors" if there are problems.
7415 *) Correct Linux 1 recognition in config.
7416 [Ulf Möller <ulf@fitug.de>]
7418 *) Remove pointless MD5 hash when using DSA keys in ca.
7419 [Anonymous <nobody@replay.com>]
7421 *) Generate an error if given an empty string as a cert directory. Also
7422 generate an error if handed NULL (previously returned 0 to indicate an
7423 error, but didn't set one).
7424 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7426 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7429 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7430 parameters. This was causing a warning which killed off the Win32 compile.
7433 *) Remove C++ style comments from crypto/bn/bn_local.h.
7434 [Neil Costigan <neil.costigan@celocom.com>]
7436 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7437 based on a text string, looking up short and long names and finally
7438 "dot" format. The "dot" format stuff didn't work. Added new function
7439 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7440 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7441 OID is not part of the table.
7444 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7445 X509_LOOKUP_by_alias().
7448 *) Sort openssl functions by name.
7451 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7452 encryption from sample DSA keys (in case anyone is interested the password
7456 *) Make _all_ *_free functions accept a NULL pointer.
7457 [Frans Heymans <fheymans@isaserver.be>]
7459 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7461 [Anonymous <nobody@replay.com>]
7463 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7464 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7466 *) Don't blow it for numeric -newkey arguments to apps/req.
7467 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7469 *) Temp key "for export" tests were wrong in s3_srvr.c.
7470 [Anonymous <nobody@replay.com>]
7472 *) Add prototype for temp key callback functions
7473 SSL_CTX_set_tmp_{rsa,dh}_callback().
7476 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7477 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7480 *) X509_name_add_entry() freed the wrong thing after an error.
7481 [Arne Ansper <arne@ats.cyber.ee>]
7483 *) rsa_eay.c would attempt to free a NULL context.
7484 [Arne Ansper <arne@ats.cyber.ee>]
7486 *) BIO_s_socket() had a broken should_retry() on Windoze.
7487 [Arne Ansper <arne@ats.cyber.ee>]
7489 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7490 [Arne Ansper <arne@ats.cyber.ee>]
7492 *) Make sure the already existing X509_STORE->depth variable is initialized
7493 in X509_STORE_new(), but document the fact that this variable is still
7494 unused in the certificate verification process.
7495 [Ralf S. Engelschall]
7497 *) Fix the various library and apps files to free up pkeys obtained from
7498 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7501 *) Fix reference counting in X509_PUBKEY_get(). This makes
7502 demos/maurice/example2.c work, amongst others, probably.
7503 [Steve Henson and Ben Laurie]
7505 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7506 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7507 are no longer created. This way we have a single and consistent command
7508 line interface `openssl <command>', similar to `cvs <command>'.
7509 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7511 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7512 BIT STRING wrapper always have zero unused bits.
7515 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7518 *) Make the top-level INSTALL documentation easier to understand.
7521 *) Makefiles updated to exit if an error occurs in a sub-directory
7522 make (including if user presses ^C) [Paul Sutton]
7524 *) Make Montgomery context stuff explicit in RSA data structure.
7527 *) Fix build order of pem and err to allow for generated pem.h.
7530 *) Fix renumbering bug in X509_NAME_delete_entry().
7533 *) Enhanced the err-ins.pl script so it makes the error library number
7534 global and can add a library name. This is needed for external ASN1 and
7535 other error libraries.
7538 *) Fixed sk_insert which never worked properly.
7541 *) Fix ASN1 macros so they can handle indefinite length construted
7542 EXPLICIT tags. Some non standard certificates use these: they can now
7546 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7547 into a single doc/ssleay.txt bundle. This way the information is still
7548 preserved but no longer messes up this directory. Now it's new room for
7549 the new set of documenation files.
7550 [Ralf S. Engelschall]
7552 *) SETs were incorrectly DER encoded. This was a major pain, because they
7553 shared code with SEQUENCEs, which aren't coded the same. This means that
7554 almost everything to do with SETs or SEQUENCEs has either changed name or
7555 number of arguments.
7556 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7558 *) Fix test data to work with the above.
7561 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7562 was already fixed by Eric for 0.9.1 it seems.
7563 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7565 *) Autodetect FreeBSD3.
7568 *) Fix various bugs in Configure. This affects the following platforms:
7572 unixware-2.0-pentium
7576 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7577 before they are needed.
7580 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7584 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7586 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7587 changed SSLeay to OpenSSL in version strings.
7588 [Ralf S. Engelschall]
7590 *) Some fixups to the top-level documents.
7593 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7594 because the symlink to include/ was missing.
7595 [Ralf S. Engelschall]
7597 *) Incorporated the popular no-RSA/DSA-only patches
7598 which allow to compile a RSA-free SSLeay.
7599 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7601 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7602 when "ssleay" is still not found.
7603 [Ralf S. Engelschall]
7605 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7606 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7608 *) Updated the README file.
7609 [Ralf S. Engelschall]
7611 *) Added various .cvsignore files in the CVS repository subdirs
7612 to make a "cvs update" really silent.
7613 [Ralf S. Engelschall]
7615 *) Recompiled the error-definition header files and added
7616 missing symbols to the Win32 linker tables.
7617 [Ralf S. Engelschall]
7619 *) Cleaned up the top-level documents;
7620 o new files: CHANGES and LICENSE
7621 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7622 o merged COPYRIGHT into LICENSE
7623 o removed obsolete TODO file
7624 o renamed MICROSOFT to INSTALL.W32
7625 [Ralf S. Engelschall]
7627 *) Removed dummy files from the 0.9.1b source tree:
7628 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7629 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7630 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7631 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7632 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7633 [Ralf S. Engelschall]
7635 *) Added various platform portability fixes.
7638 *) The Genesis of the OpenSSL rpject:
7639 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7640 Young and Tim J. Hudson created while they were working for C2Net until
7642 [The OpenSSL Project]
7645 Changes between 0.9.0b and 0.9.1b [not released]
7647 *) Updated a few CA certificates under certs/
7650 *) Changed some BIGNUM api stuff.
7653 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7654 DGUX x86, Linux Alpha, etc.
7657 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7658 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7662 *) Add -strparse option to asn1pars program which parses nested
7664 [Dr Stephen Henson <shenson@bigfoot.com>]
7666 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7669 *) DSA fix for "ca" program.
7672 *) Added "-genkey" option to "dsaparam" program.
7675 *) Added RIPE MD160 (rmd160) message digest.
7678 *) Added -a (all) option to "ssleay version" command.
7681 *) Added PLATFORM define which is the id given to Configure.
7684 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7687 *) Extended the ASN.1 parser routines.
7690 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7693 *) Added a BN_CTX to the BN library.
7696 *) Fixed the weak key values in DES library
7699 *) Changed API in EVP library for cipher aliases.
7702 *) Added support for RC2/64bit cipher.
7705 *) Converted the lhash library to the crypto/mem.c functions.
7708 *) Added more recognized ASN.1 object ids.
7711 *) Added more RSA padding checks for SSL/TLS.
7714 *) Added BIO proxy/filter functionality.
7717 *) Added extra_certs to SSL_CTX which can be used
7718 send extra CA certificates to the client in the CA cert chain sending
7719 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7722 *) Now Fortezza is denied in the authentication phase because
7723 this is key exchange mechanism is not supported by SSLeay at all.
7726 *) Additional PKCS1 checks.
7729 *) Support the string "TLSv1" for all TLS v1 ciphers.
7732 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7733 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7736 *) Fixed a few memory leaks.
7739 *) Fixed various code and comment typos.
7742 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7743 bytes sent in the client random.
7744 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob