5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
8 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
9 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
13 *) Initial support for pluggable public key ASN1.
14 De-spaghettify the public key ASN1 handling. Move public and private
15 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
16 algorithm specific handling to a single module within the relevant
17 algorithm directory. Add functions to allow (near) opaque processing
18 of public and private key structures.
21 *) Implement the Supported Point Formats Extension for
22 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
25 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
26 for the psk identity [hint] and the psk callback functions to the
27 SSL_SESSION, SSL and SSL_CTX structure.
30 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
34 SSL_CTX_use_psk_identity_hint
35 SSL_get_psk_identity_hint
37 SSL_use_psk_identity_hint
39 [Mika Kousa and Pasi Eronen of Nokia Corporation]
41 *) Add RFC 3161 compliant time stamp request creation, response generation
42 and response verification functionality.
43 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
45 *) Add initial support for TLS extensions, specifically for the server_name
46 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
47 have new members for a host name. The SSL data structure has an
48 additional member SSL_CTX *initial_ctx so that new sessions can be
49 stored in that context to allow for session resumption, even after the
50 SSL has been switched to a new SSL_CTX in reaction to a client's
51 server_name extension.
53 New functions (subject to change):
56 SSL_get_servername_type()
59 New CTRL codes and macros (subject to change):
61 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
62 - SSL_CTX_set_tlsext_servername_callback()
63 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
64 - SSL_CTX_set_tlsext_servername_arg()
65 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
67 openssl s_client has a new '-servername ...' option.
69 openssl s_server has new options '-servername_host ...', '-cert2 ...',
70 '-key2 ...', '-servername_fatal' (subject to change). This allows
71 testing the HostName extension for a specific single host name ('-cert'
72 and '-key' remain fallbacks for handshakes without HostName
73 negotiation). If the unrecogninzed_name alert has to be sent, this by
74 default is a warning; it becomes fatal with the '-servername_fatal'
77 [Peter Sylvester, Remy Allais, Christophe Renou]
79 *) Whirlpool hash implementation is added.
82 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
83 bn(64,32). Because of instruction set limitations it doesn't have
84 any negative impact on performance. This was done mostly in order
85 to make it possible to share assembler modules, such as bn_mul_mont
86 implementations, between 32- and 64-bit builds without hassle.
89 *) Disable rogue ciphersuites:
91 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
92 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
93 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
95 The latter two were purportedly from
96 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
99 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
100 remain enabled for now, but are just as unofficial, and the ID
101 has long expired; these will probably disappear soon.
104 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
105 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
109 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
110 dedicated Montgomery multiplication procedure, is introduced.
111 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
112 "64-bit" performance on certain 32-bit targets.
115 *) New option SSL_OP_NO_COMP to disable use of compression selectively
116 in SSL structures. New SSL ctrl to set maximum send fragment size.
117 Save memory by seeting the I/O buffer sizes dynamically instead of
118 using the maximum available value.
121 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
122 in addition to the text details.
125 *) Very, very preliminary EXPERIMENTAL support for printing of general
126 ASN1 structures. This currently produces rather ugly output and doesn't
127 handle several customised structures at all.
130 *) Integrated support for PVK file format and some related formats such
131 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
132 these in the 'rsa' and 'dsa' utilities.
135 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
138 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
139 place for the (very old) "NETSCAPE" format certificates which are now
140 handled using new ASN1 code equivalents.
143 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
144 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
145 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
148 *) Modify CRL distribution points extension code to print out previously
149 unsupported fields. Enhance extension setting code to allow setting of
153 *) Add print and set support for Issuing Distribution Point CRL extension.
156 Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
158 *) Link in manifests for VC++ if needed.
159 [Austin Ziegler <halostatue@gmail.com>]
161 *) Update support for ECC-based TLS ciphersuites according to
162 draft-ietf-tls-ecc-12.txt with proposed changes (but without
163 TLS extensions, which are supported starting with the 0.9.9
164 branch, not in the OpenSSL 0.9.8 branch).
167 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
168 opaque EVP_CIPHER_CTX handling.
171 *) Fixes and enhancements to zlib compression code. We now only use
172 "zlib1.dll" and use the default __cdecl calling convention on Win32
173 to conform with the standards mentioned here:
174 http://www.zlib.net/DLL_FAQ.txt
175 Static zlib linking now works on Windows and the new --with-zlib-include
176 --with-zlib-lib options to Configure can be used to supply the location
177 of the headers and library. Gracefully handle case where zlib library
181 *) Several fixes and enhancements to the OID generation code. The old code
182 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
183 handle numbers larger than ULONG_MAX, truncated printing and had a
184 non standard OBJ_obj2txt() behaviour.
187 *) Add support for building of engines under engine/ as shared libraries
188 under VC++ build system.
191 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
192 Hopefully, we will not see any false combination of paths any more.
195 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
197 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
198 (part of SSL_OP_ALL). This option used to disable the
199 countermeasure against man-in-the-middle protocol-version
200 rollback in the SSL 2.0 server implementation, which is a bad
201 idea. (CVE-2005-2969)
203 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
204 for Information Security, National Institute of Advanced Industrial
205 Science and Technology [AIST], Japan)]
207 *) Add two function to clear and return the verify parameter flags.
210 *) Keep cipherlists sorted in the source instead of sorting them at
211 runtime, thus removing the need for a lock.
214 *) Avoid some small subgroup attacks in Diffie-Hellman.
215 [Nick Mathewson and Ben Laurie]
217 *) Add functions for well-known primes.
220 *) Extended Windows CE support.
221 [Satoshi Nakamura and Andy Polyakov]
223 *) Initialize SSL_METHOD structures at compile time instead of during
224 runtime, thus removing the need for a lock.
227 *) Make PKCS7_decrypt() work even if no certificate is supplied by
228 attempting to decrypt each encrypted key in turn. Add support to
232 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
234 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
237 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
238 key into the same file any more.
241 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
244 *) Add -utf8 command line and config file option to 'ca'.
245 [Stefan <stf@udoma.org]
247 *) Removed the macro des_crypt(), as it seems to conflict with some
248 libraries. Use DES_crypt().
251 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
252 involves renaming the source and generated shared-libs for
253 both. The engines will accept the corrected or legacy ids
254 ('ncipher' and '4758_cca' respectively) when binding. NB,
255 this only applies when building 'shared'.
256 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
258 *) Add attribute functions to EVP_PKEY structure. Modify
259 PKCS12_create() to recognize a CSP name attribute and
260 use it. Make -CSP option work again in pkcs12 utility.
263 *) Add new functionality to the bn blinding code:
264 - automatic re-creation of the BN_BLINDING parameters after
265 a fixed number of uses (currently 32)
266 - add new function for parameter creation
267 - introduce flags to control the update behaviour of the
268 BN_BLINDING parameters
269 - hide BN_BLINDING structure
270 Add a second BN_BLINDING slot to the RSA structure to improve
271 performance when a single RSA object is shared among several
275 *) Add support for DTLS.
276 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
278 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
279 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
282 *) Remove buggy and incompletet DH cert support from
283 ssl/ssl_rsa.c and ssl/s3_both.c
286 *) Use SHA-1 instead of MD5 as the default digest algorithm for
287 the apps/openssl applications.
290 *) Compile clean with "-Wall -Wmissing-prototypes
291 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
292 DEBUG_SAFESTACK must also be set.
295 *) Change ./Configure so that certain algorithms can be disabled by default.
296 The new counterpiece to "no-xxx" is "enable-xxx".
298 The patented RC5 and MDC2 algorithms will now be disabled unless
299 "enable-rc5" and "enable-mdc2", respectively, are specified.
301 (IDEA remains enabled despite being patented. This is because IDEA
302 is frequently required for interoperability, and there is no license
303 fee for non-commercial use. As before, "no-idea" can be used to
304 avoid this algorithm.)
308 *) Add processing of proxy certificates (see RFC 3820). This work was
309 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
310 EGEE (Enabling Grids for E-science in Europe).
313 *) RC4 performance overhaul on modern architectures/implementations, such
314 as Intel P4, IA-64 and AMD64.
317 *) New utility extract-section.pl. This can be used specify an alternative
318 section number in a pod file instead of having to treat each file as
319 a separate case in Makefile. This can be done by adding two lines to the
322 =for comment openssl_section:XXX
324 The blank line is mandatory.
328 *) New arguments -certform, -keyform and -pass for s_client and s_server
329 to allow alternative format key and certificate files and passphrase
333 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
334 update associated structures and add various utility functions.
336 Add new policy related verify parameters, include policy checking in
337 standard verify code. Enhance 'smime' application with extra parameters
338 to support policy checking and print out.
341 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
342 Nehemiah processors. These extensions support AES encryption in hardware
343 as well as RNG (though RNG support is currently disabled).
344 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
346 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
349 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
350 [Andy Polyakov and a number of other people]
352 *) Improved PowerPC platform support. Most notably BIGNUM assembler
353 implementation contributed by IBM.
354 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
356 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
357 exponent rather than 'unsigned long'. There is a corresponding change to
358 the new 'rsa_keygen' element of the RSA_METHOD structure.
359 [Jelte Jansen, Geoff Thorpe]
361 *) Functionality for creating the initial serial number file is now
362 moved from CA.pl to the 'ca' utility with a new option -create_serial.
364 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
365 number file to 1, which is bound to cause problems. To avoid
366 the problems while respecting compatibility between different 0.9.7
367 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
368 CA.pl for serial number initialization. With the new release 0.9.8,
369 we can fix the problem directly in the 'ca' utility.)
372 *) Reduced header interdepencies by declaring more opaque objects in
373 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
374 give fewer recursive includes, which could break lazy source code - so
375 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
376 developers should define this symbol when building and using openssl to
377 ensure they track the recommended behaviour, interfaces, [etc], but
378 backwards-compatible behaviour prevails when this isn't defined.
381 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
384 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
385 This will generate a random key of the appropriate length based on the
386 cipher context. The EVP_CIPHER can provide its own random key generation
387 routine to support keys of a specific form. This is used in the des and
388 3des routines to generate a key of the correct parity. Update S/MIME
389 code to use new functions and hence generate correct parity DES keys.
390 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
391 valid (weak or incorrect parity).
394 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
395 as looking them up. This is useful when the verified structure may contain
396 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
397 present unless the new PKCS7_NO_CRL flag is asserted.
400 *) Extend ASN1 oid configuration module. It now additionally accepts the
403 shortName = some long name, 1.2.3.4
406 *) Reimplemented the BN_CTX implementation. There is now no more static
407 limitation on the number of variables it can handle nor the depth of the
408 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
409 information can now expand as required, and rather than having a single
410 static array of bignums, BN_CTX now uses a linked-list of such arrays
411 allowing it to expand on demand whilst maintaining the usefulness of
415 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
416 to allow all RSA operations to function using a single BN_CTX.
419 *) Preliminary support for certificate policy evaluation and checking. This
420 is initially intended to pass the tests outlined in "Conformance Testing
421 of Relying Party Client Certificate Path Processing Logic" v1.07.
424 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
425 remained unused and not that useful. A variety of other little bignum
426 tweaks and fixes have also been made continuing on from the audit (see
430 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
431 associated ASN1, EVP and SSL functions and old ASN1 macros.
434 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
435 and this should never fail. So the return value from the use of
436 BN_set_word() (which can fail due to needless expansion) is now deprecated;
437 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
440 *) BN_CTX_get() should return zero-valued bignums, providing the same
441 initialised value as BN_new().
442 [Geoff Thorpe, suggested by Ulf Möller]
444 *) Support for inhibitAnyPolicy certificate extension.
447 *) An audit of the BIGNUM code is underway, for which debugging code is
448 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
449 is considered valid when processing BIGNUMs, and causes execution to
450 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
451 further steps are taken to deliberately pollute unused data in BIGNUM
452 structures to try and expose faulty code further on. For now, openssl will
453 (in its default mode of operation) continue to tolerate the inconsistent
454 forms that it has tolerated in the past, but authors and packagers should
455 consider trying openssl and their own applications when compiled with
456 these debugging symbols defined. It will help highlight potential bugs in
457 their own code, and will improve the test coverage for OpenSSL itself. At
458 some point, these tighter rules will become openssl's default to improve
459 maintainability, though the assert()s and other overheads will remain only
460 in debugging configurations. See bn.h for more details.
461 [Geoff Thorpe, Nils Larsch, Ulf Möller]
463 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
464 that can only be obtained through BN_CTX_new() (which implicitly
465 initialises it). The presence of this function only made it possible
466 to overwrite an existing structure (and cause memory leaks).
469 *) Because of the callback-based approach for implementing LHASH as a
470 template type, lh_insert() adds opaque objects to hash-tables and
471 lh_doall() or lh_doall_arg() are typically used with a destructor callback
472 to clean up those corresponding objects before destroying the hash table
473 (and losing the object pointers). So some over-zealous constifications in
474 LHASH have been relaxed so that lh_insert() does not take (nor store) the
475 objects as "const" and the lh_doall[_arg] callback wrappers are not
476 prototyped to have "const" restrictions on the object pointers they are
477 given (and so aren't required to cast them away any more).
480 *) The tmdiff.h API was so ugly and minimal that our own timing utility
481 (speed) prefers to use its own implementation. The two implementations
482 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
483 its object type properly exposed (MS_TM) instead of casting to/from "char
484 *". This may still change yet if someone realises MS_TM and "ms_time_***"
485 aren't necessarily the greatest nomenclatures - but this is what was used
486 internally to the implementation so I've used that for now.
489 *) Ensure that deprecated functions do not get compiled when
490 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
491 the self-tests were still using deprecated key-generation functions so
492 these have been updated also.
495 *) Reorganise PKCS#7 code to separate the digest location functionality
496 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
497 New function PKCS7_set_digest() to set the digest type for PKCS#7
498 digestedData type. Add additional code to correctly generate the
499 digestedData type and add support for this type in PKCS7 initialization
503 *) New function PKCS7_set0_type_other() this initializes a PKCS7
504 structure of type "other".
507 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
508 sure the loop does correctly stop and breaking ("division by zero")
509 modulus operations are not performed. The (pre-generated) prime
510 table crypto/bn/bn_prime.h was already correct, but it could not be
511 re-generated on some platforms because of the "division by zero"
512 situation in the script.
513 [Ralf S. Engelschall]
515 *) Update support for ECC-based TLS ciphersuites according to
516 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
517 SHA-1 now is only used for "small" curves (where the
518 representation of a field element takes up to 24 bytes); for
519 larger curves, the field element resulting from ECDH is directly
520 used as premaster secret.
521 [Douglas Stebila (Sun Microsystems Laboratories)]
523 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
524 curve secp160r1 to the tests.
525 [Douglas Stebila (Sun Microsystems Laboratories)]
527 *) Add the possibility to load symbols globally with DSO.
528 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
530 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
531 control of the error stack.
534 *) Add support for STORE in ENGINE.
537 *) Add the STORE type. The intention is to provide a common interface
538 to certificate and key stores, be they simple file-based stores, or
539 HSM-type store, or LDAP stores, or...
540 NOTE: The code is currently UNTESTED and isn't really used anywhere.
543 *) Add a generic structure called OPENSSL_ITEM. This can be used to
544 pass a list of arguments to any function as well as provide a way
545 for a function to pass data back to the caller.
548 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
549 works like BUF_strdup() but can be used to duplicate a portion of
550 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
554 *) Add the function sk_find_ex() which works like sk_find(), but will
555 return an index to an element even if an exact match couldn't be
556 found. The index is guaranteed to point at the element where the
557 searched-for key would be inserted to preserve sorting order.
560 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
561 takes an extra flags argument for optional functionality. Currently,
562 the following flags are defined:
564 OBJ_BSEARCH_VALUE_ON_NOMATCH
565 This one gets OBJ_bsearch_ex() to return a pointer to the first
566 element where the comparing function returns a negative or zero
569 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
570 This one gets OBJ_bsearch_ex() to return a pointer to the first
571 element where the comparing function returns zero. This is useful
572 if there are more than one element where the comparing function
576 *) Make it possible to create self-signed certificates with 'openssl ca'
577 in such a way that the self-signed certificate becomes part of the
578 CA database and uses the same mechanisms for serial number generation
579 as all other certificate signing. The new flag '-selfsign' enables
580 this functionality. Adapt CA.sh and CA.pl.in.
583 *) Add functionality to check the public key of a certificate request
584 against a given private. This is useful to check that a certificate
585 request can be signed by that key (self-signing).
588 *) Make it possible to have multiple active certificates with the same
589 subject in the CA index file. This is done only if the keyword
590 'unique_subject' is set to 'no' in the main CA section (default
591 if 'CA_default') of the configuration file. The value is saved
592 with the database itself in a separate index attribute file,
593 named like the index file with '.attr' appended to the name.
596 *) Generate muti valued AVAs using '+' notation in config files for
600 *) Support for nameConstraints certificate extension.
603 *) Support for policyConstraints certificate extension.
606 *) Support for policyMappings certificate extension.
609 *) Make sure the default DSA_METHOD implementation only uses its
610 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
611 and change its own handlers to be NULL so as to remove unnecessary
612 indirection. This lets alternative implementations fallback to the
613 default implementation more easily.
616 *) Support for directoryName in GeneralName related extensions
620 *) Make it possible to link applications using Makefile.shared.
621 Make that possible even when linking against static libraries!
624 *) Support for single pass processing for S/MIME signing. This now
625 means that S/MIME signing can be done from a pipe, in addition
626 cleartext signing (multipart/signed type) is effectively streaming
627 and the signed data does not need to be all held in memory.
629 This is done with a new flag PKCS7_STREAM. When this flag is set
630 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
631 is done after the data is output (and digests calculated) in
635 *) Add full support for -rpath/-R, both in shared libraries and
636 applications, at least on the platforms where it's known how
640 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
641 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
642 will now compute a table of multiples of the generator that
643 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
644 faster (notably in the case of a single point multiplication,
646 [Nils Larsch, Bodo Moeller]
648 *) IPv6 support for certificate extensions. The various extensions
649 which use the IP:a.b.c.d can now take IPv6 addresses using the
650 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
654 *) Added an ENGINE that implements RSA by performing private key
655 exponentiations with the GMP library. The conversions to and from
656 GMP's mpz_t format aren't optimised nor are any montgomery forms
657 cached, and on x86 it appears OpenSSL's own performance has caught up.
658 However there are likely to be other architectures where GMP could
659 provide a boost. This ENGINE is not built in by default, but it can be
660 specified at Configure time and should be accompanied by the necessary
661 linker additions, eg;
662 ./config -DOPENSSL_USE_GMP -lgmp
665 *) "openssl engine" will not display ENGINE/DSO load failure errors when
666 testing availability of engines with "-t" - the old behaviour is
667 produced by increasing the feature's verbosity with "-tt".
670 *) ECDSA routines: under certain error conditions uninitialized BN objects
671 could be freed. Solution: make sure initialization is performed early
672 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
676 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
677 and DH_METHOD (eg. by ENGINE implementations) to override the normal
678 software implementations. For DSA and DH, parameter generation can
679 also be overriden by providing the appropriate method callbacks.
682 *) Change the "progress" mechanism used in key-generation and
683 primality testing to functions that take a new BN_GENCB pointer in
684 place of callback/argument pairs. The new API functions have "_ex"
685 postfixes and the older functions are reimplemented as wrappers for
686 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
687 declarations of the old functions to help (graceful) attempts to
688 migrate to the new functions. Also, the new key-generation API
689 functions operate on a caller-supplied key-structure and return
690 success/failure rather than returning a key or NULL - this is to
691 help make "keygen" another member function of RSA_METHOD etc.
693 Example for using the new callback interface:
695 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
699 BN_GENCB_set(&my_cb, my_callback, my_arg);
701 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
702 /* For the meaning of a, b in calls to my_callback(), see the
703 * documentation of the function that calls the callback.
704 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
705 * my_callback should return 1 if it wants BN_is_prime_ex()
706 * to continue, or 0 to stop.
711 *) Change the ZLIB compression method to be stateful, and make it
712 available to TLS with the number defined in
713 draft-ietf-tls-compression-04.txt.
716 *) Add the ASN.1 structures and functions for CertificatePair, which
717 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
719 CertificatePair ::= SEQUENCE {
720 forward [0] Certificate OPTIONAL,
721 reverse [1] Certificate OPTIONAL,
722 -- at least one of the pair shall be present -- }
724 Also implement the PEM functions to read and write certificate
725 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
727 This needed to be defined, mostly for the sake of the LDAP
728 attribute crossCertificatePair, but may prove useful elsewhere as
732 *) Make it possible to inhibit symlinking of shared libraries in
733 Makefile.shared, for Cygwin's sake.
736 *) Extend the BIGNUM API by creating a function
737 void BN_set_negative(BIGNUM *a, int neg);
738 and a macro that behave like
739 int BN_is_negative(const BIGNUM *a);
741 to avoid the need to access 'a->neg' directly in applications.
744 *) Implement fast modular reduction for pseudo-Mersenne primes
745 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
746 EC_GROUP_new_curve_GFp() will now automatically use this
748 [Nils Larsch <nla@trustcenter.de>]
750 *) Add new lock type (CRYPTO_LOCK_BN).
753 *) Change the ENGINE framework to automatically load engines
754 dynamically from specific directories unless they could be
755 found to already be built in or loaded. Move all the
756 current engines except for the cryptodev one to a new
758 The engines in engines/ are built as shared libraries if
759 the "shared" options was given to ./Configure or ./config.
760 Otherwise, they are inserted in libcrypto.a.
761 /usr/local/ssl/engines is the default directory for dynamic
762 engines, but that can be overriden at configure time through
763 the usual use of --prefix and/or --openssldir, and at run
764 time with the environment variable OPENSSL_ENGINES.
765 [Geoff Thorpe and Richard Levitte]
767 *) Add Makefile.shared, a helper makefile to build shared
768 libraries. Addapt Makefile.org.
771 *) Add version info to Win32 DLLs.
772 [Peter 'Luna' Runestig" <peter@runestig.com>]
774 *) Add new 'medium level' PKCS#12 API. Certificates and keys
775 can be added using this API to created arbitrary PKCS#12
776 files while avoiding the low level API.
778 New options to PKCS12_create(), key or cert can be NULL and
779 will then be omitted from the output file. The encryption
780 algorithm NIDs can be set to -1 for no encryption, the mac
781 iteration count can be set to 0 to omit the mac.
783 Enhance pkcs12 utility by making the -nokeys and -nocerts
784 options work when creating a PKCS#12 file. New option -nomac
785 to omit the mac, NONE can be set for an encryption algorithm.
786 New code is modified to use the enhanced PKCS12_create()
787 instead of the low level API.
790 *) Extend ASN1 encoder to support indefinite length constructed
791 encoding. This can output sequences tags and octet strings in
792 this form. Modify pk7_asn1.c to support indefinite length
793 encoding. This is experimental and needs additional code to
794 be useful, such as an ASN1 bio and some enhanced streaming
797 Extend template encode functionality so that tagging is passed
798 down to the template encoder.
801 *) Let 'openssl req' fail if an argument to '-newkey' is not
802 recognized instead of using RSA as a default.
805 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
806 As these are not official, they are not included in "ALL";
807 the "ECCdraft" ciphersuite group alias can be used to select them.
808 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
810 *) Add ECDH engine support.
811 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
813 *) Add ECDH in new directory crypto/ecdh/.
814 [Douglas Stebila (Sun Microsystems Laboratories)]
816 *) Let BN_rand_range() abort with an error after 100 iterations
817 without success (which indicates a broken PRNG).
820 *) Change BN_mod_sqrt() so that it verifies that the input value
821 is really the square of the return value. (Previously,
822 BN_mod_sqrt would show GIGO behaviour.)
825 *) Add named elliptic curves over binary fields from X9.62, SECG,
826 and WAP/WTLS; add OIDs that were still missing.
828 [Sheueling Chang Shantz and Douglas Stebila
829 (Sun Microsystems Laboratories)]
831 *) Extend the EC library for elliptic curves over binary fields
832 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
835 EC_GF2m_simple_method
839 EC_GROUP_new_curve_GF2m
840 EC_GROUP_set_curve_GF2m
841 EC_GROUP_get_curve_GF2m
842 EC_POINT_set_affine_coordinates_GF2m
843 EC_POINT_get_affine_coordinates_GF2m
844 EC_POINT_set_compressed_coordinates_GF2m
846 Point compression for binary fields is disabled by default for
847 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
850 As binary polynomials are represented as BIGNUMs, various members
851 of the EC_GROUP and EC_POINT data structures can be shared
852 between the implementations for prime fields and binary fields;
853 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
854 are essentially identical to their ..._GFp counterparts.
855 (For simplicity, the '..._GFp' prefix has been dropped from
856 various internal method names.)
858 An internal 'field_div' method (similar to 'field_mul' and
859 'field_sqr') has been added; this is used only for binary fields.
861 [Sheueling Chang Shantz and Douglas Stebila
862 (Sun Microsystems Laboratories)]
864 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
865 through methods ('mul', 'precompute_mult').
867 The generic implementations (now internally called 'ec_wNAF_mul'
868 and 'ec_wNAF_precomputed_mult') remain the default if these
869 methods are undefined.
871 [Sheueling Chang Shantz and Douglas Stebila
872 (Sun Microsystems Laboratories)]
874 *) New function EC_GROUP_get_degree, which is defined through
875 EC_METHOD. For curves over prime fields, this returns the bit
876 length of the modulus.
878 [Sheueling Chang Shantz and Douglas Stebila
879 (Sun Microsystems Laboratories)]
881 *) New functions EC_GROUP_dup, EC_POINT_dup.
882 (These simply call ..._new and ..._copy).
884 [Sheueling Chang Shantz and Douglas Stebila
885 (Sun Microsystems Laboratories)]
887 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
888 Polynomials are represented as BIGNUMs (where the sign bit is not
889 used) in the following functions [macros]:
892 BN_GF2m_sub [= BN_GF2m_add]
893 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
894 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
895 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
897 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
898 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
899 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
900 BN_GF2m_cmp [= BN_ucmp]
902 (Note that only the 'mod' functions are actually for fields GF(2^m).
903 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
905 For some functions, an the irreducible polynomial defining a
906 field can be given as an 'unsigned int[]' with strictly
907 decreasing elements giving the indices of those bits that are set;
908 i.e., p[] represents the polynomial
909 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
911 p[0] > p[1] > ... > p[k] = 0.
912 This applies to the following functions:
917 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
918 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
921 BN_GF2m_mod_solve_quad_arr
925 Conversion can be performed by the following functions:
930 bntest.c has additional tests for binary polynomial arithmetic.
932 Two implementations for BN_GF2m_mod_div() are available.
933 The default algorithm simply uses BN_GF2m_mod_inv() and
934 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
935 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
936 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
938 [Sheueling Chang Shantz and Douglas Stebila
939 (Sun Microsystems Laboratories)]
941 *) Add new error code 'ERR_R_DISABLED' that can be used when some
942 functionality is disabled at compile-time.
943 [Douglas Stebila <douglas.stebila@sun.com>]
945 *) Change default behaviour of 'openssl asn1parse' so that more
946 information is visible when viewing, e.g., a certificate:
948 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
949 mode the content of non-printable OCTET STRINGs is output in a
950 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
951 avoid the appearance of a printable string.
952 [Nils Larsch <nla@trustcenter.de>]
954 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
956 EC_GROUP_set_asn1_flag()
957 EC_GROUP_get_asn1_flag()
958 EC_GROUP_set_point_conversion_form()
959 EC_GROUP_get_point_conversion_form()
960 These control ASN1 encoding details:
961 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
962 has been set to OPENSSL_EC_NAMED_CURVE.
963 - Points are encoded in uncompressed form by default; options for
964 asn1_for are as for point2oct, namely
965 POINT_CONVERSION_COMPRESSED
966 POINT_CONVERSION_UNCOMPRESSED
967 POINT_CONVERSION_HYBRID
969 Also add 'seed' and 'seed_len' members to EC_GROUP with access
973 EC_GROUP_get_seed_len()
974 This is used only for ASN1 purposes (so far).
975 [Nils Larsch <nla@trustcenter.de>]
977 *) Add 'field_type' member to EC_METHOD, which holds the NID
978 of the appropriate field type OID. The new function
979 EC_METHOD_get_field_type() returns this value.
980 [Nils Larsch <nla@trustcenter.de>]
987 providing useful interfaces to EC_POINT_point2oct() and
988 EC_POINT_oct2point().
989 [Nils Larsch <nla@trustcenter.de>]
991 *) Change internals of the EC library so that the functions
992 EC_GROUP_set_generator()
993 EC_GROUP_get_generator()
995 EC_GROUP_get_cofactor()
996 are implemented directly in crypto/ec/ec_lib.c and not dispatched
997 to methods, which would lead to unnecessary code duplication when
998 adding different types of curves.
999 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1001 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1002 arithmetic, and such that modified wNAFs are generated
1003 (which avoid length expansion in many cases).
1006 *) Add a function EC_GROUP_check_discriminant() (defined via
1007 EC_METHOD) that verifies that the curve discriminant is non-zero.
1009 Add a function EC_GROUP_check() that makes some sanity tests
1010 on a EC_GROUP, its generator and order. This includes
1011 EC_GROUP_check_discriminant().
1012 [Nils Larsch <nla@trustcenter.de>]
1014 *) Add ECDSA in new directory crypto/ecdsa/.
1016 Add applications 'openssl ecparam' and 'openssl ecdsa'
1017 (these are based on 'openssl dsaparam' and 'openssl dsa').
1019 ECDSA support is also included in various other files across the
1020 library. Most notably,
1021 - 'openssl req' now has a '-newkey ecdsa:file' option;
1022 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1023 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1024 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1025 them suitable for ECDSA where domain parameters must be
1026 extracted before the specific public key;
1027 - ECDSA engine support has been added.
1028 [Nils Larsch <nla@trustcenter.de>]
1030 *) Include some named elliptic curves, and add OIDs from X9.62,
1031 SECG, and WAP/WTLS. Each curve can be obtained from the new
1033 EC_GROUP_new_by_curve_name(),
1034 and the list of available named curves can be obtained with
1035 EC_get_builtin_curves().
1036 Also add a 'curve_name' member to EC_GROUP objects, which can be
1038 EC_GROUP_set_curve_name()
1039 EC_GROUP_get_curve_name()
1040 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1042 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1043 was actually never needed) and in BN_mul(). The removal in BN_mul()
1044 required a small change in bn_mul_part_recursive() and the addition
1045 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1046 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1047 bn_sub_words() and bn_add_words() except they take arrays with
1051 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1053 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1054 The value now differs depending on if you build for FIPS or not.
1055 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1056 safely run with a non-FIPSed libcrypto, as it may crash because of
1057 the difference induced by this change.
1060 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1062 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1063 (part of SSL_OP_ALL). This option used to disable the
1064 countermeasure against man-in-the-middle protocol-version
1065 rollback in the SSL 2.0 server implementation, which is a bad
1066 idea. (CVE-2005-2969)
1068 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1069 for Information Security, National Institute of Advanced Industrial
1070 Science and Technology [AIST], Japan)]
1072 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1073 mainly for FIPS compliance and not fully integrated at this stage.
1076 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1077 the exponentiation using a fixed-length exponent. (Otherwise,
1078 the information leaked through timing could expose the secret key
1079 after many signatures; cf. Bleichenbacher's attack on DSA with
1083 *) Make a new fixed-window mod_exp implementation the default for
1084 RSA, DSA, and DH private-key operations so that the sequence of
1085 squares and multiplies and the memory access pattern are
1086 independent of the particular secret key. This will mitigate
1087 cache-timing and potential related attacks.
1089 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1090 and this is automatically used by BN_mod_exp_mont() if the new flag
1091 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1092 will use this BN flag for private exponents unless the flag
1093 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1094 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1096 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1098 *) Change the client implementation for SSLv23_method() and
1099 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1100 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1101 (Previously, the SSL 2.0 backwards compatible Client Hello
1102 message format would be used even with SSL_OP_NO_SSLv2.)
1105 *) Add support for smime-type MIME parameter in S/MIME messages which some
1109 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1110 a threadsafe manner. Modify rsa code to use new function and add calls
1111 to dsa and dh code (which had race conditions before).
1114 *) Include the fixed error library code in the C error file definitions
1115 instead of fixing them up at runtime. This keeps the error code
1116 structures constant.
1119 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1121 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1124 *) Fixes for newer kerberos headers. NB: the casts are needed because
1125 the 'length' field is signed on one version and unsigned on another
1126 with no (?) obvious way to tell the difference, without these VC++
1127 complains. Also the "definition" of FAR (blank) is no longer included
1128 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1129 some needed definitions.
1132 *) Undo Cygwin change.
1135 *) Added support for proxy certificates according to RFC 3820.
1136 Because they may be a security thread to unaware applications,
1137 they must be explicitely allowed in run-time. See
1138 docs/HOWTO/proxy_certificates.txt for further information.
1141 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1143 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1144 server and client random values. Previously
1145 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1146 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1148 This change has negligible security impact because:
1150 1. Server and client random values still have 24 bytes of pseudo random
1153 2. Server and client random values are sent in the clear in the initial
1156 3. The master secret is derived using the premaster secret (48 bytes in
1157 size for static RSA ciphersuites) as well as client server and random
1160 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1163 [Stephen Henson, reported by UK NISCC]
1165 *) Use Windows randomness collection on Cygwin.
1168 *) Fix hang in EGD/PRNGD query when communication socket is closed
1169 prematurely by EGD/PRNGD.
1170 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1172 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1175 *) Back-port of selected performance improvements from development
1176 branch, as well as improved support for PowerPC platforms.
1179 *) Add lots of checks for memory allocation failure, error codes to indicate
1180 failure and freeing up memory if a failure occurs.
1181 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1183 *) Add new -passin argument to dgst.
1186 *) Perform some character comparisons of different types in X509_NAME_cmp:
1187 this is needed for some certificates that reencode DNs into UTF8Strings
1188 (in violation of RFC3280) and can't or wont issue name rollover
1192 *) Make an explicit check during certificate validation to see that
1193 the CA setting in each certificate on the chain is correct. As a
1194 side effect always do the following basic checks on extensions,
1195 not just when there's an associated purpose to the check:
1197 - if there is an unhandled critical extension (unless the user
1198 has chosen to ignore this fault)
1199 - if the path length has been exceeded (if one is set at all)
1200 - that certain extensions fit the associated purpose (if one has
1204 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1206 *) Avoid a race condition when CRLs are checked in a multi threaded
1207 environment. This would happen due to the reordering of the revoked
1208 entries during signature checking and serial number lookup. Now the
1209 encoding is cached and the serial number sort performed under a lock.
1210 Add new STACK function sk_is_sorted().
1213 *) Add Delta CRL to the extension code.
1216 *) Various fixes to s3_pkt.c so alerts are sent properly.
1217 [David Holmes <d.holmes@f5.com>]
1219 *) Reduce the chances of duplicate issuer name and serial numbers (in
1220 violation of RFC3280) using the OpenSSL certificate creation utilities.
1221 This is done by creating a random 64 bit value for the initial serial
1222 number when a serial number file is created or when a self signed
1223 certificate is created using 'openssl req -x509'. The initial serial
1224 number file is created using 'openssl x509 -next_serial' in CA.pl
1225 rather than being initialized to 1.
1228 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1230 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1231 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1232 [Joe Orton, Steve Henson]
1234 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1236 [Joe Orton, Steve Henson]
1238 *) Make it possible to have multiple active certificates with the same
1239 subject in the CA index file. This is done only if the keyword
1240 'unique_subject' is set to 'no' in the main CA section (default
1241 if 'CA_default') of the configuration file. The value is saved
1242 with the database itself in a separate index attribute file,
1243 named like the index file with '.attr' appended to the name.
1246 *) X509 verify fixes. Disable broken certificate workarounds when
1247 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1248 keyUsage extension present. Don't accept CRLs with unhandled critical
1249 extensions: since verify currently doesn't process CRL extensions this
1250 rejects a CRL with *any* critical extensions. Add new verify error codes
1254 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1255 A clarification of RFC2560 will require the use of OCTET STRINGs and
1256 some implementations cannot handle the current raw format. Since OpenSSL
1257 copies and compares OCSP nonces as opaque blobs without any attempt at
1258 parsing them this should not create any compatibility issues.
1261 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1262 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1263 this HMAC (and other) operations are several times slower than OpenSSL
1267 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1268 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1270 *) Use the correct content when signing type "other".
1273 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1275 *) Fix various bugs revealed by running the NISCC test suite:
1277 Stop out of bounds reads in the ASN1 code when presented with
1278 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1280 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1282 If verify callback ignores invalid public key errors don't try to check
1283 certificate signature with the NULL public key.
1287 *) New -ignore_err option in ocsp application to stop the server
1288 exiting on the first error in a request.
1291 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1292 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1296 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1297 extra data after the compression methods not only for TLS 1.0
1298 but also for SSL 3.0 (as required by the specification).
1299 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1301 *) Change X509_certificate_type() to mark the key as exported/exportable
1302 when it's 512 *bits* long, not 512 bytes.
1305 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1306 blocks during encryption.
1309 *) Various fixes to base64 BIO and non blocking I/O. On write
1310 flushes were not handled properly if the BIO retried. On read
1311 data was not being buffered properly and had various logic bugs.
1312 This also affects blocking I/O when the data being decoded is a
1316 *) Various S/MIME bugfixes and compatibility changes:
1317 output correct application/pkcs7 MIME type if
1318 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1319 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1320 of files as .eml work). Correctly handle very long lines in MIME
1324 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1326 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1327 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1328 a protocol version number mismatch like a decryption error
1329 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1332 *) Turn on RSA blinding by default in the default implementation
1333 to avoid a timing attack. Applications that don't want it can call
1334 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1335 They would be ill-advised to do so in most cases.
1336 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1338 *) Change RSA blinding code so that it works when the PRNG is not
1339 seeded (in this case, the secret RSA exponent is abused as
1340 an unpredictable seed -- if it is not unpredictable, there
1341 is no point in blinding anyway). Make RSA blinding thread-safe
1342 by remembering the creator's thread ID in rsa->blinding and
1343 having all other threads use local one-time blinding factors
1344 (this requires more computation than sharing rsa->blinding, but
1345 avoids excessive locking; and if an RSA object is not shared
1346 between threads, blinding will still be very fast).
1349 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1350 ENGINE as defaults for all supported algorithms irrespective of
1351 the 'flags' parameter. 'flags' is now honoured, so applications
1352 should make sure they are passing it correctly.
1355 *) Target "mingw" now allows native Windows code to be generated in
1356 the Cygwin environment as well as with the MinGW compiler.
1359 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1361 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1362 via timing by performing a MAC computation even if incorrrect
1363 block cipher padding has been found. This is a countermeasure
1364 against active attacks where the attacker has to distinguish
1365 between bad padding and a MAC verification error. (CVE-2003-0078)
1367 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1368 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1369 Martin Vuagnoux (EPFL, Ilion)]
1371 *) Make the no-err option work as intended. The intention with no-err
1372 is not to have the whole error stack handling routines removed from
1373 libcrypto, it's only intended to remove all the function name and
1374 reason texts, thereby removing some of the footprint that may not
1375 be interesting if those errors aren't displayed anyway.
1377 NOTE: it's still possible for any application or module to have it's
1378 own set of error texts inserted. The routines are there, just not
1379 used by default when no-err is given.
1382 *) Add support for FreeBSD on IA64.
1383 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1385 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1386 Kerberos function mit_des_cbc_cksum(). Before this change,
1387 the value returned by DES_cbc_cksum() was like the one from
1388 mit_des_cbc_cksum(), except the bytes were swapped.
1389 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1391 *) Allow an application to disable the automatic SSL chain building.
1392 Before this a rather primitive chain build was always performed in
1393 ssl3_output_cert_chain(): an application had no way to send the
1394 correct chain if the automatic operation produced an incorrect result.
1396 Now the chain builder is disabled if either:
1398 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1400 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1402 The reasoning behind this is that an application would not want the
1403 auto chain building to take place if extra chain certificates are
1404 present and it might also want a means of sending no additional
1405 certificates (for example the chain has two certificates and the
1409 *) Add the possibility to build without the ENGINE framework.
1410 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1412 *) Under Win32 gmtime() can return NULL: check return value in
1413 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1416 *) DSA routines: under certain error conditions uninitialized BN objects
1417 could be freed. Solution: make sure initialization is performed early
1418 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1419 Nils Larsch <nla@trustcenter.de> via PR#459)
1422 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1423 checked on reconnect on the client side, therefore session resumption
1424 could still fail with a "ssl session id is different" error. This
1425 behaviour is masked when SSL_OP_ALL is used due to
1426 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1427 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1428 followup to PR #377.
1431 *) IA-32 assembler support enhancements: unified ELF targets, support
1432 for SCO/Caldera platforms, fix for Cygwin shared build.
1435 *) Add support for FreeBSD on sparc64. As a consequence, support for
1436 FreeBSD on non-x86 processors is separate from x86 processors on
1437 the config script, much like the NetBSD support.
1438 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1440 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1442 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1445 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1446 code (06) was taken as the first octet of the session ID and the last
1447 octet was ignored consequently. As a result SSLv2 client side session
1448 caching could not have worked due to the session ID mismatch between
1450 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1454 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1455 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1459 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1460 seems that in spite of existing for more than a year, many application
1461 author have done nothing to provide the necessary callbacks, which
1462 means that this particular engine will not work properly anywhere.
1463 This is a very unfortunate situation which forces us, in the name
1464 of usability, to give the hw_ncipher.c a static lock, which is part
1466 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1467 appear in 0.9.8 or later. We EXPECT application authors to have
1468 dealt properly with this when 0.9.8 is released (unless we actually
1469 make such changes in the libcrypto locking code that changes will
1470 have to be made anyway).
1473 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1474 octets have been read, EOF or an error occurs. Without this change
1475 some truncated ASN1 structures will not produce an error.
1478 *) Disable Heimdal support, since it hasn't been fully implemented.
1479 Still give the possibility to force the use of Heimdal, but with
1480 warnings and a request that patches get sent to openssl-dev.
1483 *) Add the VC-CE target, introduce the WINCE sysname, and add
1484 INSTALL.WCE and appropriate conditionals to make it build.
1485 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1487 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1488 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1489 edit numbers of the version.
1490 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1492 *) Introduce safe string copy and catenation functions
1493 (BUF_strlcpy() and BUF_strlcat()).
1494 [Ben Laurie (CHATS) and Richard Levitte]
1496 *) Avoid using fixed-size buffers for one-line DNs.
1497 [Ben Laurie (CHATS)]
1499 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1500 resizing buffers containing secrets, and use where appropriate.
1501 [Ben Laurie (CHATS)]
1503 *) Avoid using fixed size buffers for configuration file location.
1504 [Ben Laurie (CHATS)]
1506 *) Avoid filename truncation for various CA files.
1507 [Ben Laurie (CHATS)]
1509 *) Use sizeof in preference to magic numbers.
1510 [Ben Laurie (CHATS)]
1512 *) Avoid filename truncation in cert requests.
1513 [Ben Laurie (CHATS)]
1515 *) Add assertions to check for (supposedly impossible) buffer
1517 [Ben Laurie (CHATS)]
1519 *) Don't cache truncated DNS entries in the local cache (this could
1520 potentially lead to a spoofing attack).
1521 [Ben Laurie (CHATS)]
1523 *) Fix various buffers to be large enough for hex/decimal
1524 representations in a platform independent manner.
1525 [Ben Laurie (CHATS)]
1527 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1528 resizing buffers containing secrets, and use where appropriate.
1529 [Ben Laurie (CHATS)]
1531 *) Add BIO_indent() to avoid much slightly worrying code to do
1533 [Ben Laurie (CHATS)]
1535 *) Convert sprintf()/BIO_puts() to BIO_printf().
1536 [Ben Laurie (CHATS)]
1538 *) buffer_gets() could terminate with the buffer only half
1540 [Ben Laurie (CHATS)]
1542 *) Add assertions to prevent user-supplied crypto functions from
1543 overflowing internal buffers by having large block sizes, etc.
1544 [Ben Laurie (CHATS)]
1546 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1548 [Ben Laurie (CHATS)]
1550 *) Eliminate unused copy of key in RC4.
1551 [Ben Laurie (CHATS)]
1553 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1554 [Ben Laurie (CHATS)]
1556 *) Fix off-by-one error in EGD path.
1557 [Ben Laurie (CHATS)]
1559 *) If RANDFILE path is too long, ignore instead of truncating.
1560 [Ben Laurie (CHATS)]
1562 *) Eliminate unused and incorrectly sized X.509 structure
1564 [Ben Laurie (CHATS)]
1566 *) Eliminate unused and dangerous function knumber().
1567 [Ben Laurie (CHATS)]
1569 *) Eliminate unused and dangerous structure, KSSL_ERR.
1570 [Ben Laurie (CHATS)]
1572 *) Protect against overlong session ID context length in an encoded
1573 session object. Since these are local, this does not appear to be
1575 [Ben Laurie (CHATS)]
1577 *) Change from security patch (see 0.9.6e below) that did not affect
1578 the 0.9.6 release series:
1580 Remote buffer overflow in SSL3 protocol - an attacker could
1581 supply an oversized master key in Kerberos-enabled versions.
1583 [Ben Laurie (CHATS)]
1585 *) Change the SSL kerb5 codes to match RFC 2712.
1588 *) Make -nameopt work fully for req and add -reqopt switch.
1589 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1591 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1592 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1594 *) Make sure tests can be performed even if the corresponding algorithms
1595 have been removed entirely. This was also the last step to make
1596 OpenSSL compilable with DJGPP under all reasonable conditions.
1597 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1599 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1600 to allow version independent disabling of normally unselected ciphers,
1601 which may be activated as a side-effect of selecting a single cipher.
1603 (E.g., cipher list string "RSA" enables ciphersuites that are left
1604 out of "ALL" because they do not provide symmetric encryption.
1605 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1606 [Lutz Jaenicke, Bodo Moeller]
1608 *) Add appropriate support for separate platform-dependent build
1609 directories. The recommended way to make a platform-dependent
1610 build directory is the following (tested on Linux), maybe with
1613 # Place yourself outside of the OpenSSL source tree. In
1614 # this example, the environment variable OPENSSL_SOURCE
1615 # is assumed to contain the absolute OpenSSL source directory.
1616 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1617 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1618 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1619 mkdir -p `dirname $F`
1620 ln -s $OPENSSL_SOURCE/$F $F
1623 To be absolutely sure not to disturb the source tree, a "make clean"
1624 is a good thing. If it isn't successfull, don't worry about it,
1625 it probably means the source directory is very clean.
1628 *) Make sure any ENGINE control commands make local copies of string
1629 pointers passed to them whenever necessary. Otherwise it is possible
1630 the caller may have overwritten (or deallocated) the original string
1631 data when a later ENGINE operation tries to use the stored values.
1632 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1634 *) Improve diagnostics in file reading and command-line digests.
1635 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1637 *) Add AES modes CFB and OFB to the object database. Correct an
1638 error in AES-CFB decryption.
1641 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1642 allows existing EVP_CIPHER_CTX structures to be reused after
1643 calling EVP_*Final(). This behaviour is used by encryption
1644 BIOs and some applications. This has the side effect that
1645 applications must explicitly clean up cipher contexts with
1646 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1649 *) Check the values of dna and dnb in bn_mul_recursive before calling
1650 bn_mul_comba (a non zero value means the a or b arrays do not contain
1651 n2 elements) and fallback to bn_mul_normal if either is not zero.
1654 *) Fix escaping of non-ASCII characters when using the -subj option
1655 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1658 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1659 form for "surname", serialNumber has no short form.
1660 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1661 therefore remove "mail" short name for "internet 7".
1662 The OID for unique identifiers in X509 certificates is
1663 x500UniqueIdentifier, not uniqueIdentifier.
1664 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1667 *) Add an "init" command to the ENGINE config module and auto initialize
1668 ENGINEs. Without any "init" command the ENGINE will be initialized
1669 after all ctrl commands have been executed on it. If init=1 the
1670 ENGINE is initailized at that point (ctrls before that point are run
1671 on the uninitialized ENGINE and after on the initialized one). If
1672 init=0 then the ENGINE will not be iniatialized at all.
1675 *) Fix the 'app_verify_callback' interface so that the user-defined
1676 argument is actually passed to the callback: In the
1677 SSL_CTX_set_cert_verify_callback() prototype, the callback
1678 declaration has been changed from
1681 int (*cb)(X509_STORE_CTX *,void *);
1682 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1683 i=s->ctx->app_verify_callback(&ctx)
1684 has been changed into
1685 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1687 To update applications using SSL_CTX_set_cert_verify_callback(),
1688 a dummy argument can be added to their callback functions.
1689 [D. K. Smetters <smetters@parc.xerox.com>]
1691 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1692 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1694 *) Add and OPENSSL_LOAD_CONF define which will cause
1695 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1696 This allows older applications to transparently support certain
1697 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1698 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1699 load the config file and OPENSSL_add_all_algorithms_conf() which will
1700 always load it have also been added.
1703 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1704 Adjust NIDs and EVP layer.
1705 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1707 *) Config modules support in openssl utility.
1709 Most commands now load modules from the config file,
1710 though in a few (such as version) this isn't done
1711 because it couldn't be used for anything.
1713 In the case of ca and req the config file used is
1714 the same as the utility itself: that is the -config
1715 command line option can be used to specify an
1719 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1720 use "openssl_conf" if filename is NULL use default openssl config file.
1723 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1724 config section name. Add a new flag to tolerate a missing config file
1725 and move code to CONF_modules_load_file().
1728 *) Support for crypto accelerator cards from Accelerated Encryption
1729 Processing, www.aep.ie. (Use engine 'aep')
1730 The support was copied from 0.9.6c [engine] and adapted/corrected
1731 to work with the new engine framework.
1732 [AEP Inc. and Richard Levitte]
1734 *) Support for SureWare crypto accelerator cards from Baltimore
1735 Technologies. (Use engine 'sureware')
1736 The support was copied from 0.9.6c [engine] and adapted
1737 to work with the new engine framework.
1740 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1741 make the newer ENGINE framework commands for the CHIL engine work.
1742 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1744 *) Make it possible to produce shared libraries on ReliantUNIX.
1745 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1747 *) Add the configuration target debug-linux-ppro.
1748 Make 'openssl rsa' use the general key loading routines
1749 implemented in apps.c, and make those routines able to
1750 handle the key format FORMAT_NETSCAPE and the variant
1752 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1754 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1755 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1757 *) Add -keyform to rsautl, and document -engine.
1758 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1760 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1761 BIO_R_NO_SUCH_FILE error code rather than the generic
1762 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1765 *) Add new functions
1767 ERR_peek_last_error_line
1768 ERR_peek_last_error_line_data.
1769 These are similar to
1772 ERR_peek_error_line_data,
1773 but report on the latest error recorded rather than the first one
1774 still in the error queue.
1775 [Ben Laurie, Bodo Moeller]
1777 *) default_algorithms option in ENGINE config module. This allows things
1779 default_algorithms = ALL
1780 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1783 *) Prelminary ENGINE config module.
1786 *) New experimental application configuration code.
1789 *) Change the AES code to follow the same name structure as all other
1790 symmetric ciphers, and behave the same way. Move everything to
1791 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1792 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1794 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1795 [Ben Laurie and Theo de Raadt]
1797 *) Add option to output public keys in req command.
1798 [Massimiliano Pala madwolf@openca.org]
1800 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1801 (up to about 10% better than before for P-192 and P-224).
1804 *) New functions/macros
1806 SSL_CTX_set_msg_callback(ctx, cb)
1807 SSL_CTX_set_msg_callback_arg(ctx, arg)
1808 SSL_set_msg_callback(ssl, cb)
1809 SSL_set_msg_callback_arg(ssl, arg)
1811 to request calling a callback function
1813 void cb(int write_p, int version, int content_type,
1814 const void *buf, size_t len, SSL *ssl, void *arg)
1816 whenever a protocol message has been completely received
1817 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1818 protocol version according to which the SSL library interprets
1819 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1820 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1821 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1822 specification (change_cipher_spec(20), alert(21), handshake(22)).
1823 'buf' and 'len' point to the actual message, 'ssl' to the
1824 SSL object, and 'arg' is the application-defined value set by
1825 SSL[_CTX]_set_msg_callback_arg().
1827 'openssl s_client' and 'openssl s_server' have new '-msg' options
1828 to enable a callback that displays all protocol messages.
1831 *) Change the shared library support so shared libraries are built as
1832 soon as the corresponding static library is finished, and thereby get
1833 openssl and the test programs linked against the shared library.
1834 This still only happens when the keyword "shard" has been given to
1835 the configuration scripts.
1837 NOTE: shared library support is still an experimental thing, and
1838 backward binary compatibility is still not guaranteed.
1839 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1841 *) Add support for Subject Information Access extension.
1842 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1844 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1845 additional bytes when new memory had to be allocated, not just
1846 when reusing an existing buffer.
1849 *) New command line and configuration option 'utf8' for the req command.
1850 This allows field values to be specified as UTF8 strings.
1853 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1854 runs for the former and machine-readable output for the latter.
1857 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1858 of the e-mail address in the DN (i.e., it will go into a certificate
1859 extension only). The new configuration file option 'email_in_dn = no'
1860 has the same effect.
1861 [Massimiliano Pala madwolf@openca.org]
1863 *) Change all functions with names starting with des_ to be starting
1864 with DES_ instead. Add wrappers that are compatible with libdes,
1865 but are named _ossl_old_des_*. Finally, add macros that map the
1866 des_* symbols to the corresponding _ossl_old_des_* if libdes
1867 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1868 desired, the des_* symbols will be mapped to DES_*, with one
1871 Since we provide two compatibility mappings, the user needs to
1872 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1873 compatibility is desired. The default (i.e., when that macro
1874 isn't defined) is OpenSSL 0.9.6c compatibility.
1876 There are also macros that enable and disable the support of old
1877 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1878 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1879 are defined, the default will apply: to support the old des routines.
1881 In either case, one must include openssl/des.h to get the correct
1882 definitions. Do not try to just include openssl/des_old.h, that
1885 NOTE: This is a major break of an old API into a new one. Software
1886 authors are encouraged to switch to the DES_ style functions. Some
1887 time in the future, des_old.h and the libdes compatibility functions
1888 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1889 default), and then completely removed.
1892 *) Test for certificates which contain unsupported critical extensions.
1893 If such a certificate is found during a verify operation it is
1894 rejected by default: this behaviour can be overridden by either
1895 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1896 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1897 X509_supported_extension() has also been added which returns 1 if a
1898 particular extension is supported.
1901 *) Modify the behaviour of EVP cipher functions in similar way to digests
1902 to retain compatibility with existing code.
1905 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1906 compatibility with existing code. In particular the 'ctx' parameter does
1907 not have to be to be initialized before the call to EVP_DigestInit() and
1908 it is tidied up after a call to EVP_DigestFinal(). New function
1909 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1910 EVP_MD_CTX_copy() changed to not require the destination to be
1911 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1912 requires the destination to be valid.
1914 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1915 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1918 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1919 so that complete 'Handshake' protocol structures are kept in memory
1920 instead of overwriting 'msg_type' and 'length' with 'body' data.
1923 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1924 [Massimo Santin via Richard Levitte]
1926 *) Major restructuring to the underlying ENGINE code. This includes
1927 reduction of linker bloat, separation of pure "ENGINE" manipulation
1928 (initialisation, etc) from functionality dealing with implementations
1929 of specific crypto iterfaces. This change also introduces integrated
1930 support for symmetric ciphers and digest implementations - so ENGINEs
1931 can now accelerate these by providing EVP_CIPHER and EVP_MD
1932 implementations of their own. This is detailed in crypto/engine/README
1933 as it couldn't be adequately described here. However, there are a few
1934 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1935 were changed in the original introduction of ENGINE code have now
1936 reverted back - the hooking from this code to ENGINE is now a good
1937 deal more passive and at run-time, operations deal directly with
1938 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1939 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1940 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1941 they were not being used by the framework as there is no concept of a
1942 BIGNUM_METHOD and they could not be generalised to the new
1943 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1944 ENGINE_cpy() has been removed as it cannot be consistently defined in
1948 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1951 *) Change mkdef.pl to sort symbols that get the same entry number,
1952 and make sure the automatically generated functions ERR_load_*
1953 become part of libeay.num as well.
1956 *) New function SSL_renegotiate_pending(). This returns true once
1957 renegotiation has been requested (either SSL_renegotiate() call
1958 or HelloRequest/ClientHello receveived from the peer) and becomes
1959 false once a handshake has been completed.
1960 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1961 sends a HelloRequest, but does not ensure that a handshake takes
1962 place. SSL_renegotiate_pending() is useful for checking if the
1963 client has followed the request.)
1966 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1967 By default, clients may request session resumption even during
1968 renegotiation (if session ID contexts permit); with this option,
1969 session resumption is possible only in the first handshake.
1971 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1972 more bits available for options that should not be part of
1973 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1976 *) Add some demos for certificate and certificate request creation.
1979 *) Make maximum certificate chain size accepted from the peer application
1980 settable (SSL*_get/set_max_cert_list()), as proposed by
1981 "Douglas E. Engert" <deengert@anl.gov>.
1984 *) Add support for shared libraries for Unixware-7
1985 (Boyd Lynn Gerber <gerberb@zenez.com>).
1988 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1989 be done prior to destruction. Use this to unload error strings from
1990 ENGINEs that load their own error strings. NB: This adds two new API
1991 functions to "get" and "set" this destroy handler in an ENGINE.
1994 *) Alter all existing ENGINE implementations (except "openssl" and
1995 "openbsd") to dynamically instantiate their own error strings. This
1996 makes them more flexible to be built both as statically-linked ENGINEs
1997 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1998 Also, add stub code to each that makes building them as self-contained
1999 shared-libraries easier (see README.ENGINE).
2002 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2003 implementations into applications that are completely implemented in
2004 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2005 commands that can be used to configure what shared-library to load and
2006 to control aspects of the way it is handled. Also, made an update to
2007 the README.ENGINE file that brings its information up-to-date and
2008 provides some information and instructions on the "dynamic" ENGINE
2009 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2012 *) Make it possible to unload ranges of ERR strings with a new
2013 "ERR_unload_strings" function.
2016 *) Add a copy() function to EVP_MD.
2019 *) Make EVP_MD routines take a context pointer instead of just the
2020 md_data void pointer.
2023 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2024 that the digest can only process a single chunk of data
2025 (typically because it is provided by a piece of
2026 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2027 is only going to provide a single chunk of data, and hence the
2028 framework needn't accumulate the data for oneshot drivers.
2031 *) As with "ERR", make it possible to replace the underlying "ex_data"
2032 functions. This change also alters the storage and management of global
2033 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2034 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2035 index counters. The API functions that use this state have been changed
2036 to take a "class_index" rather than pointers to the class's local STACK
2037 and counter, and there is now an API function to dynamically create new
2038 classes. This centralisation allows us to (a) plug a lot of the
2039 thread-safety problems that existed, and (b) makes it possible to clean
2040 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2041 such data would previously have always leaked in application code and
2042 workarounds were in place to make the memory debugging turn a blind eye
2043 to it. Application code that doesn't use this new function will still
2044 leak as before, but their memory debugging output will announce it now
2045 rather than letting it slide.
2047 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2048 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2049 has a return value to indicate success or failure.
2052 *) Make it possible to replace the underlying "ERR" functions such that the
2053 global state (2 LHASH tables and 2 locks) is only used by the "default"
2054 implementation. This change also adds two functions to "get" and "set"
2055 the implementation prior to it being automatically set the first time
2056 any other ERR function takes place. Ie. an application can call "get",
2057 pass the return value to a module it has just loaded, and that module
2058 can call its own "set" function using that value. This means the
2059 module's "ERR" operations will use (and modify) the error state in the
2060 application and not in its own statically linked copy of OpenSSL code.
2063 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2064 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2065 the operation, and provides a more encapsulated way for external code
2066 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2067 to use these functions rather than manually incrementing the counts.
2069 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2072 *) Add EVP test program.
2075 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2078 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2079 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2080 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2081 These allow a CRL to be built without having to access X509_CRL fields
2082 directly. Modify 'ca' application to use new functions.
2085 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2086 bug workarounds. Rollback attack detection is a security feature.
2087 The problem will only arise on OpenSSL servers when TLSv1 is not
2088 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2089 Software authors not wanting to support TLSv1 will have special reasons
2090 for their choice and can explicitly enable this option.
2091 [Bodo Moeller, Lutz Jaenicke]
2093 *) Rationalise EVP so it can be extended: don't include a union of
2094 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2095 (similar to those existing for EVP_CIPHER_CTX).
2100 EVP_MD_CTX_init(&md); /* new function call */
2101 EVP_DigestInit(&md, EVP_sha1());
2102 EVP_DigestUpdate(&md, in, len);
2103 EVP_DigestFinal(&md, out, NULL);
2104 EVP_MD_CTX_cleanup(&md); /* new function call */
2108 *) Make DES key schedule conform to the usual scheme, as well as
2109 correcting its structure. This means that calls to DES functions
2110 now have to pass a pointer to a des_key_schedule instead of a
2111 plain des_key_schedule (which was actually always a pointer
2114 des_key_schedule ks;
2116 des_set_key_checked(..., &ks);
2117 des_ncbc_encrypt(..., &ks, ...);
2119 (Note that a later change renames 'des_...' into 'DES_...'.)
2122 *) Initial reduction of linker bloat: the use of some functions, such as
2123 PEM causes large amounts of unused functions to be linked in due to
2124 poor organisation. For example pem_all.c contains every PEM function
2125 which has a knock on effect of linking in large amounts of (unused)
2126 ASN1 code. Grouping together similar functions and splitting unrelated
2127 functions prevents this.
2130 *) Cleanup of EVP macros.
2133 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2134 correct _ecb suffix.
2137 *) Add initial OCSP responder support to ocsp application. The
2138 revocation information is handled using the text based index
2139 use by the ca application. The responder can either handle
2140 requests generated internally, supplied in files (for example
2141 via a CGI script) or using an internal minimal server.
2144 *) Add configuration choices to get zlib compression for TLS.
2147 *) Changes to Kerberos SSL for RFC 2712 compliance:
2148 1. Implemented real KerberosWrapper, instead of just using
2149 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2150 2. Implemented optional authenticator field of KerberosWrapper.
2152 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2153 and authenticator structs; see crypto/krb5/.
2155 Generalized Kerberos calls to support multiple Kerberos libraries.
2156 [Vern Staats <staatsvr@asc.hpc.mil>,
2157 Jeffrey Altman <jaltman@columbia.edu>
2158 via Richard Levitte]
2160 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2161 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2162 values for each of the key sizes rather than having just
2163 parameters (and 'speed' generating keys each time).
2166 *) Speed up EVP routines.
2169 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2170 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2171 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2172 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2174 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2175 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2176 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2179 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2181 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2184 *) Added the OS2-EMX target.
2185 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2187 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2188 to support NCONF routines in extension code. New function CONF_set_nconf()
2189 to allow functions which take an NCONF to also handle the old LHASH
2190 structure: this means that the old CONF compatible routines can be
2191 retained (in particular wrt extensions) without having to duplicate the
2192 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2195 *) Enhance the general user interface with mechanisms for inner control
2196 and with possibilities to have yes/no kind of prompts.
2199 *) Change all calls to low level digest routines in the library and
2200 applications to use EVP. Add missing calls to HMAC_cleanup() and
2201 don't assume HMAC_CTX can be copied using memcpy().
2202 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2204 *) Add the possibility to control engines through control names but with
2205 arbitrary arguments instead of just a string.
2206 Change the key loaders to take a UI_METHOD instead of a callback
2207 function pointer. NOTE: this breaks binary compatibility with earlier
2208 versions of OpenSSL [engine].
2209 Adapt the nCipher code for these new conditions and add a card insertion
2213 *) Enhance the general user interface with mechanisms to better support
2214 dialog box interfaces, application-defined prompts, the possibility
2215 to use defaults (for example default passwords from somewhere else)
2216 and interrupts/cancellations.
2219 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2220 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2223 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2224 tidy up some unnecessarily weird code in 'sk_new()').
2225 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2227 *) Change the key loading routines for ENGINEs to use the same kind
2228 callback (pem_password_cb) as all other routines that need this
2232 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2233 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2234 than this minimum value is recommended.
2237 *) New random seeder for OpenVMS, using the system process statistics
2238 that are easily reachable.
2241 *) Windows apparently can't transparently handle global
2242 variables defined in DLLs. Initialisations such as:
2244 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2246 wont compile. This is used by the any applications that need to
2247 declare their own ASN1 modules. This was fixed by adding the option
2248 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2249 needed for static libraries under Win32.
2252 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2253 setting of purpose and trust fields. New X509_STORE trust and
2254 purpose functions and tidy up setting in other SSL functions.
2257 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2258 structure. These are inherited by X509_STORE_CTX when it is
2259 initialised. This allows various defaults to be set in the
2260 X509_STORE structure (such as flags for CRL checking and custom
2261 purpose or trust settings) for functions which only use X509_STORE_CTX
2262 internally such as S/MIME.
2264 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2265 trust settings if they are not set in X509_STORE. This allows X509_STORE
2266 purposes and trust (in S/MIME for example) to override any set by default.
2268 Add command line options for CRL checking to smime, s_client and s_server
2272 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2273 are set then the CRL is looked up in the X509_STORE structure and
2274 its validity and signature checked, then if the certificate is found
2275 in the CRL the verify fails with a revoked error.
2277 Various new CRL related callbacks added to X509_STORE_CTX structure.
2279 Command line options added to 'verify' application to support this.
2281 This needs some additional work, such as being able to handle multiple
2282 CRLs with different times, extension based lookup (rather than just
2283 by subject name) and ultimately more complete V2 CRL extension
2287 *) Add a general user interface API (crypto/ui/). This is designed
2288 to replace things like des_read_password and friends (backward
2289 compatibility functions using this new API are provided).
2290 The purpose is to remove prompting functions from the DES code
2291 section as well as provide for prompting through dialog boxes in
2292 a window system and the like.
2295 *) Add "ex_data" support to ENGINE so implementations can add state at a
2296 per-structure level rather than having to store it globally.
2299 *) Make it possible for ENGINE structures to be copied when retrieved by
2300 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2301 This causes the "original" ENGINE structure to act like a template,
2302 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2303 operational state can be localised to each ENGINE structure, despite the
2304 fact they all share the same "methods". New ENGINE structures returned in
2305 this case have no functional references and the return value is the single
2306 structural reference. This matches the single structural reference returned
2307 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2311 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2312 needs to match any other type at all we need to manually clear the
2316 *) Changes to the "openssl engine" utility to include;
2317 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2318 about an ENGINE's available control commands.
2319 - executing control commands from command line arguments using the
2320 '-pre' and '-post' switches. '-post' is only used if '-t' is
2321 specified and the ENGINE is successfully initialised. The syntax for
2322 the individual commands are colon-separated, for example;
2323 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2326 *) New dynamic control command support for ENGINEs. ENGINEs can now
2327 declare their own commands (numbers), names (strings), descriptions,
2328 and input types for run-time discovery by calling applications. A
2329 subset of these commands are implicitly classed as "executable"
2330 depending on their input type, and only these can be invoked through
2331 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2332 can be based on user input, config files, etc). The distinction is
2333 that "executable" commands cannot return anything other than a boolean
2334 result and can only support numeric or string input, whereas some
2335 discoverable commands may only be for direct use through
2336 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2337 pointers, or other custom uses. The "executable" commands are to
2338 support parameterisations of ENGINE behaviour that can be
2339 unambiguously defined by ENGINEs and used consistently across any
2340 OpenSSL-based application. Commands have been added to all the
2341 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2342 control over shared-library paths without source code alterations.
2345 *) Changed all ENGINE implementations to dynamically allocate their
2346 ENGINEs rather than declaring them statically. Apart from this being
2347 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2348 this also allows the implementations to compile without using the
2349 internal engine_int.h header.
2352 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2353 'const' value. Any code that should be able to modify a RAND_METHOD
2354 should already have non-const pointers to it (ie. they should only
2355 modify their own ones).
2358 *) Made a variety of little tweaks to the ENGINE code.
2359 - "atalla" and "ubsec" string definitions were moved from header files
2360 to C code. "nuron" string definitions were placed in variables
2361 rather than hard-coded - allowing parameterisation of these values
2362 later on via ctrl() commands.
2363 - Removed unused "#if 0"'d code.
2364 - Fixed engine list iteration code so it uses ENGINE_free() to release
2365 structural references.
2366 - Constified the RAND_METHOD element of ENGINE structures.
2367 - Constified various get/set functions as appropriate and added
2368 missing functions (including a catch-all ENGINE_cpy that duplicates
2369 all ENGINE values onto a new ENGINE except reference counts/state).
2370 - Removed NULL parameter checks in get/set functions. Setting a method
2371 or function to NULL is a way of cancelling out a previously set
2372 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2373 and doesn't justify the extra error symbols and code.
2374 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2375 flags from engine_int.h to engine.h.
2376 - Changed prototypes for ENGINE handler functions (init(), finish(),
2377 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2380 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2381 to the algorithm using long division. The binary algorithm can be
2382 used only if the modulus is odd. On 32-bit systems, it is faster
2383 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2384 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2385 up to 450 bits. In 64-bit environments, the binary algorithm
2386 appears to be advantageous for much longer moduli; here we use it
2387 for moduli up to 2048 bits.
2390 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2391 could not support the combine flag in choice fields.
2394 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2395 extensions from a certificate request to the certificate.
2398 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2399 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2400 file: this allows the display of the certificate about to be
2401 signed to be customised, to allow certain fields to be included
2402 or excluded and extension details. The old system didn't display
2403 multicharacter strings properly, omitted fields not in the policy
2404 and couldn't display additional details such as extensions.
2407 *) Function EC_POINTs_mul for multiple scalar multiplication
2408 of an arbitrary number of elliptic curve points
2409 \sum scalars[i]*points[i],
2410 optionally including the generator defined for the EC_GROUP:
2411 scalar*generator + \sum scalars[i]*points[i].
2413 EC_POINT_mul is a simple wrapper function for the typical case
2414 that the point list has just one item (besides the optional
2418 *) First EC_METHODs for curves over GF(p):
2420 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2421 operations and provides various method functions that can also
2422 operate with faster implementations of modular arithmetic.
2424 EC_GFp_mont_method() reuses most functions that are part of
2425 EC_GFp_simple_method, but uses Montgomery arithmetic.
2427 [Bodo Moeller; point addition and point doubling
2428 implementation directly derived from source code provided by
2429 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2431 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2432 crypto/ec/ec_lib.c):
2434 Curves are EC_GROUP objects (with an optional group generator)
2435 based on EC_METHODs that are built into the library.
2437 Points are EC_POINT objects based on EC_GROUP objects.
2439 Most of the framework would be able to handle curves over arbitrary
2440 finite fields, but as there are no obvious types for fields other
2441 than GF(p), some functions are limited to that for now.
2444 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2445 that the file contains a complete HTTP response.
2448 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2449 change the def and num file printf format specifier from "%-40sXXX"
2450 to "%-39s XXX". The latter will always guarantee a space after the
2451 field while the former will cause them to run together if the field
2452 is 40 of more characters long.
2455 *) Constify the cipher and digest 'method' functions and structures
2456 and modify related functions to take constant EVP_MD and EVP_CIPHER
2460 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2461 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2464 *) Modify EVP_Digest*() routines so they now return values. Although the
2465 internal software routines can never fail additional hardware versions
2469 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2471 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2472 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2475 ERR_R_NESTED_ASN1_ERROR
2477 ERR_R_MISSING_ASN1_EOS
2478 were 4 .. 9, conflicting with
2479 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2481 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2482 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2484 Add new error code 'ERR_R_INTERNAL_ERROR'.
2487 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2491 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2492 sets the subject name for a new request or supersedes the
2493 subject name in a given request. Formats that can be parsed are
2494 'CN=Some Name, OU=myOU, C=IT'
2496 'CN=Some Name/OU=myOU/C=IT'.
2498 Add options '-batch' and '-verbose' to 'openssl req'.
2499 [Massimiliano Pala <madwolf@hackmasters.net>]
2501 *) Introduce the possibility to access global variables through
2502 functions on platform were that's the best way to handle exporting
2503 global variables in shared libraries. To enable this functionality,
2504 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2505 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2506 is normally done by Configure or something similar).
2508 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2509 in the source file (foo.c) like this:
2511 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2512 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2514 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2515 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2517 OPENSSL_DECLARE_GLOBAL(int,foo);
2518 #define foo OPENSSL_GLOBAL_REF(foo)
2519 OPENSSL_DECLARE_GLOBAL(double,bar);
2520 #define bar OPENSSL_GLOBAL_REF(bar)
2522 The #defines are very important, and therefore so is including the
2523 header file everywhere where the defined globals are used.
2525 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2526 of ASN.1 items, but that structure is a bit different.
2528 The largest change is in util/mkdef.pl which has been enhanced with
2529 better and easier to understand logic to choose which symbols should
2530 go into the Windows .def files as well as a number of fixes and code
2531 cleanup (among others, algorithm keywords are now sorted
2532 lexicographically to avoid constant rewrites).
2535 *) In BN_div() keep a copy of the sign of 'num' before writing the
2536 result to 'rm' because if rm==num the value will be overwritten
2537 and produce the wrong result if 'num' is negative: this caused
2538 problems with BN_mod() and BN_nnmod().
2541 *) Function OCSP_request_verify(). This checks the signature on an
2542 OCSP request and verifies the signer certificate. The signer
2543 certificate is just checked for a generic purpose and OCSP request
2547 *) Add OCSP_check_validity() function to check the validity of OCSP
2548 responses. OCSP responses are prepared in real time and may only
2549 be a few seconds old. Simply checking that the current time lies
2550 between thisUpdate and nextUpdate max reject otherwise valid responses
2551 caused by either OCSP responder or client clock inaccuracy. Instead
2552 we allow thisUpdate and nextUpdate to fall within a certain period of
2553 the current time. The age of the response can also optionally be
2554 checked. Two new options -validity_period and -status_age added to
2558 *) If signature or public key algorithm is unrecognized print out its
2559 OID rather that just UNKNOWN.
2562 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2563 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2564 ID to be generated from the issuer certificate alone which can then be
2565 passed to OCSP_id_issuer_cmp().
2568 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2569 ASN1 modules to export functions returning ASN1_ITEM pointers
2570 instead of the ASN1_ITEM structures themselves. This adds several
2571 new macros which allow the underlying ASN1 function/structure to
2572 be accessed transparently. As a result code should not use ASN1_ITEM
2573 references directly (such as &X509_it) but instead use the relevant
2574 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2575 use of the new ASN1 code on platforms where exporting structures
2576 is problematical (for example in shared libraries) but exporting
2577 functions returning pointers to structures is not.
2580 *) Add support for overriding the generation of SSL/TLS session IDs.
2581 These callbacks can be registered either in an SSL_CTX or per SSL.
2582 The purpose of this is to allow applications to control, if they wish,
2583 the arbitrary values chosen for use as session IDs, particularly as it
2584 can be useful for session caching in multiple-server environments. A
2585 command-line switch for testing this (and any client code that wishes
2586 to use such a feature) has been added to "s_server".
2587 [Geoff Thorpe, Lutz Jaenicke]
2589 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2590 of the form '#if defined(...) || defined(...) || ...' and
2591 '#if !defined(...) && !defined(...) && ...'. This also avoids
2592 the growing number of special cases it was previously handling.
2595 *) Make all configuration macros available for application by making
2596 sure they are available in opensslconf.h, by giving them names starting
2597 with "OPENSSL_" to avoid conflicts with other packages and by making
2598 sure e_os2.h will cover all platform-specific cases together with
2600 Additionally, it is now possible to define configuration/platform-
2601 specific names (called "system identities"). In the C code, these
2602 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2603 macro with the name beginning with "OPENSSL_SYS_", which is determined
2604 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2608 *) New option -set_serial to 'req' and 'x509' this allows the serial
2609 number to use to be specified on the command line. Previously self
2610 signed certificates were hard coded with serial number 0 and the
2611 CA options of 'x509' had to use a serial number in a file which was
2615 *) New options to 'ca' utility to support V2 CRL entry extensions.
2616 Currently CRL reason, invalidity date and hold instruction are
2617 supported. Add new CRL extensions to V3 code and some new objects.
2620 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2621 disable standard block padding (aka PKCS#5 padding) in the EVP
2622 API, which was previously mandatory. This means that the data is
2623 not padded in any way and so the total length much be a multiple
2624 of the block size, otherwise an error occurs.
2627 *) Initial (incomplete) OCSP SSL support.
2630 *) New function OCSP_parse_url(). This splits up a URL into its host,
2631 port and path components: primarily to parse OCSP URLs. New -url
2632 option to ocsp utility.
2635 *) New nonce behavior. The return value of OCSP_check_nonce() now
2636 reflects the various checks performed. Applications can decide
2637 whether to tolerate certain situations such as an absent nonce
2638 in a response when one was present in a request: the ocsp application
2639 just prints out a warning. New function OCSP_add1_basic_nonce()
2640 this is to allow responders to include a nonce in a response even if
2641 the request is nonce-less.
2644 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2645 skipped when using openssl x509 multiple times on a single input file,
2646 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2649 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2650 set string type: to handle setting ASN1_TIME structures. Fix ca
2651 utility to correctly initialize revocation date of CRLs.
2654 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2655 the clients preferred ciphersuites and rather use its own preferences.
2656 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2657 Internet Explorer by ensuring unchanged hash method during stepup.
2658 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2661 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2662 to aes and add a new 'exist' option to print out symbols that don't
2666 *) Additional options to ocsp utility to allow flags to be set and
2667 additional certificates supplied.
2670 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2671 OCSP client a number of certificate to only verify the response
2675 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2676 handle the new API. Currently only ECB, CBC modes supported. Add new
2679 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2680 Encryption Standard (AES) Ciphersuites for Transport Layer
2681 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2682 not enabled by default and were not part of the "ALL" ciphersuite
2683 alias because they were not yet official; they could be
2684 explicitly requested by specifying the "AESdraft" ciphersuite
2685 group alias. In the final release of OpenSSL 0.9.7, the group
2686 alias is called "AES" and is part of "ALL".)
2687 [Ben Laurie, Steve Henson, Bodo Moeller]
2689 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2690 request to response.
2693 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2694 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2695 extract information from a certificate request. OCSP_response_create()
2696 creates a response and optionally adds a basic response structure.
2697 OCSP_basic_add1_status() adds a complete single response to a basic
2698 response and returns the OCSP_SINGLERESP structure just added (to allow
2699 extensions to be included for example). OCSP_basic_add1_cert() adds a
2700 certificate to a basic response and OCSP_basic_sign() signs a basic
2701 response with various flags. New helper functions ASN1_TIME_check()
2702 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2703 (converts ASN1_TIME to GeneralizedTime).
2706 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2707 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2708 structure from a certificate. X509_pubkey_digest() digests the public_key
2709 contents: this is used in various key identifiers.
2712 *) Make sk_sort() tolerate a NULL argument.
2713 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2715 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2716 passed by the function are trusted implicitly. If any of them signed the
2717 response then it is assumed to be valid and is not verified.
2720 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2721 to data. This was previously part of the PKCS7 ASN1 code. This
2722 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2723 [Steve Henson, reported by Kenneth R. Robinette
2724 <support@securenetterm.com>]
2726 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2727 routines: without these tracing memory leaks is very painful.
2728 Fix leaks in PKCS12 and PKCS7 routines.
2731 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2732 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2733 effectively meant GeneralizedTime would never be used. Now it
2734 is initialised to -1 but X509_time_adj() now has to check the value
2735 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2736 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2737 [Steve Henson, reported by Kenneth R. Robinette
2738 <support@securenetterm.com>]
2740 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2741 result in a zero length in the ASN1_INTEGER structure which was
2742 not consistent with the structure when d2i_ASN1_INTEGER() was used
2743 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2744 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2745 where it did not print out a minus for negative ASN1_INTEGER.
2748 *) Add summary printout to ocsp utility. The various functions which
2749 convert status values to strings have been renamed to:
2750 OCSP_response_status_str(), OCSP_cert_status_str() and
2751 OCSP_crl_reason_str() and are no longer static. New options
2752 to verify nonce values and to disable verification. OCSP response
2753 printout format cleaned up.
2756 *) Add additional OCSP certificate checks. These are those specified
2757 in RFC2560. This consists of two separate checks: the CA of the
2758 certificate being checked must either be the OCSP signer certificate
2759 or the issuer of the OCSP signer certificate. In the latter case the
2760 OCSP signer certificate must contain the OCSP signing extended key
2761 usage. This check is performed by attempting to match the OCSP
2762 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2763 in the OCSP_CERTID structures of the response.
2766 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2767 and related routines. This uses the standard OpenSSL certificate
2768 verify routines to perform initial checks (just CA validity) and
2769 to obtain the certificate chain. Then additional checks will be
2770 performed on the chain. Currently the root CA is checked to see
2771 if it is explicitly trusted for OCSP signing. This is used to set
2772 a root CA as a global signing root: that is any certificate that
2773 chains to that CA is an acceptable OCSP signing certificate.
2776 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2777 extensions from a separate configuration file.
2778 As when reading extensions from the main configuration file,
2779 the '-extensions ...' option may be used for specifying the
2781 [Massimiliano Pala <madwolf@comune.modena.it>]
2783 *) New OCSP utility. Allows OCSP requests to be generated or
2784 read. The request can be sent to a responder and the output
2785 parsed, outputed or printed in text form. Not complete yet:
2786 still needs to check the OCSP response validity.
2789 *) New subcommands for 'openssl ca':
2790 'openssl ca -status <serial>' prints the status of the cert with
2791 the given serial number (according to the index file).
2792 'openssl ca -updatedb' updates the expiry status of certificates
2794 [Massimiliano Pala <madwolf@comune.modena.it>]
2796 *) New '-newreq-nodes' command option to CA.pl. This is like
2797 '-newreq', but calls 'openssl req' with the '-nodes' option
2798 so that the resulting key is not encrypted.
2799 [Damien Miller <djm@mindrot.org>]
2801 *) New configuration for the GNU Hurd.
2802 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2804 *) Initial code to implement OCSP basic response verify. This
2805 is currently incomplete. Currently just finds the signer's
2806 certificate and verifies the signature on the response.
2809 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2810 value of OPENSSLDIR. This is available via the new '-d' option
2811 to 'openssl version', and is also included in 'openssl version -a'.
2814 *) Allowing defining memory allocation callbacks that will be given
2815 file name and line number information in additional arguments
2816 (a const char* and an int). The basic functionality remains, as
2817 well as the original possibility to just replace malloc(),
2818 realloc() and free() by functions that do not know about these
2819 additional arguments. To register and find out the current
2820 settings for extended allocation functions, the following
2821 functions are provided:
2823 CRYPTO_set_mem_ex_functions
2824 CRYPTO_set_locked_mem_ex_functions
2825 CRYPTO_get_mem_ex_functions
2826 CRYPTO_get_locked_mem_ex_functions
2828 These work the same way as CRYPTO_set_mem_functions and friends.
2829 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2830 extended allocation function is enabled.
2831 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2832 a conventional allocation function is enabled.
2833 [Richard Levitte, Bodo Moeller]
2835 *) Finish off removing the remaining LHASH function pointer casts.
2836 There should no longer be any prototype-casting required when using
2837 the LHASH abstraction, and any casts that remain are "bugs". See
2838 the callback types and macros at the head of lhash.h for details
2839 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2842 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2843 If /dev/[u]random devices are not available or do not return enough
2844 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2846 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2847 /etc/entropy will be queried once each in this sequence, quering stops
2848 when enough entropy was collected without querying more sockets.
2851 *) Change the Unix RAND_poll() variant to be able to poll several
2852 random devices, as specified by DEVRANDOM, until a sufficient amount
2853 of data has been collected. We spend at most 10 ms on each file
2854 (select timeout) and read in non-blocking mode. DEVRANDOM now
2855 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2856 (previously it was just the string "/dev/urandom"), so on typical
2857 platforms the 10 ms delay will never occur.
2858 Also separate out the Unix variant to its own file, rand_unix.c.
2859 For VMS, there's a currently-empty rand_vms.c.
2862 *) Move OCSP client related routines to ocsp_cl.c. These
2863 provide utility functions which an application needing
2864 to issue a request to an OCSP responder and analyse the
2865 response will typically need: as opposed to those which an
2866 OCSP responder itself would need which will be added later.
2868 OCSP_request_sign() signs an OCSP request with an API similar
2869 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2870 response. OCSP_response_get1_basic() extracts basic response
2871 from response. OCSP_resp_find_status(): finds and extracts status
2872 information from an OCSP_CERTID structure (which will be created
2873 when the request structure is built). These are built from lower
2874 level functions which work on OCSP_SINGLERESP structures but
2875 wont normally be used unless the application wishes to examine
2876 extensions in the OCSP response for example.
2878 Replace nonce routines with a pair of functions.
2879 OCSP_request_add1_nonce() adds a nonce value and optionally
2880 generates a random value. OCSP_check_nonce() checks the
2881 validity of the nonce in an OCSP response.
2884 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2885 This doesn't copy the supplied OCSP_CERTID and avoids the
2886 need to free up the newly created id. Change return type
2887 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2888 This can then be used to add extensions to the request.
2889 Deleted OCSP_request_new(), since most of its functionality
2890 is now in OCSP_REQUEST_new() (and the case insensitive name
2891 clash) apart from the ability to set the request name which
2892 will be added elsewhere.
2895 *) Update OCSP API. Remove obsolete extensions argument from
2896 various functions. Extensions are now handled using the new
2897 OCSP extension code. New simple OCSP HTTP function which
2898 can be used to send requests and parse the response.
2901 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2902 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2903 uses the special reorder version of SET OF to sort the attributes
2904 and reorder them to match the encoded order. This resolves a long
2905 standing problem: a verify on a PKCS7 structure just after signing
2906 it used to fail because the attribute order did not match the
2907 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2908 it uses the received order. This is necessary to tolerate some broken
2909 software that does not order SET OF. This is handled by encoding
2910 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2911 to produce the required SET OF.
2914 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2915 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2916 files to get correct declarations of the ASN.1 item variables.
2919 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2920 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2921 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2922 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2923 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2924 ASN1_ITEM and no wrapper functions.
2927 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2928 replace the old function pointer based I/O routines. Change most of
2929 the *_d2i_bio() and *_d2i_fp() functions to use these.
2932 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2933 lines, recognice more "algorithms" that can be deselected, and make
2934 it complain about algorithm deselection that isn't recognised.
2937 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2938 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2939 to use new functions. Add NO_ASN1_OLD which can be set to remove
2940 some old style ASN1 functions: this can be used to determine if old
2941 code will still work when these eventually go away.
2944 *) New extension functions for OCSP structures, these follow the
2945 same conventions as certificates and CRLs.
2948 *) New function X509V3_add1_i2d(). This automatically encodes and
2949 adds an extension. Its behaviour can be customised with various
2950 flags to append, replace or delete. Various wrappers added for
2951 certifcates and CRLs.
2954 *) Fix to avoid calling the underlying ASN1 print routine when
2955 an extension cannot be parsed. Correct a typo in the
2956 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2959 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2960 entries for variables.
2963 *) Add functionality to apps/openssl.c for detecting locking
2964 problems: As the program is single-threaded, all we have
2965 to do is register a locking callback using an array for
2966 storing which locks are currently held by the program.
2969 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2970 SSL_get_ex_data_X509_STORE_idx(), which is used in
2971 ssl_verify_cert_chain() and thus can be called at any time
2972 during TLS/SSL handshakes so that thread-safety is essential.
2973 Unfortunately, the ex_data design is not at all suited
2974 for multi-threaded use, so it probably should be abolished.
2977 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2978 [Broadcom, tweaked and integrated by Geoff Thorpe]
2980 *) Move common extension printing code to new function
2981 X509V3_print_extensions(). Reorganise OCSP print routines and
2982 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2985 *) New function X509_signature_print() to remove duplication in some
2989 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2990 set (this was treated exactly the same as SET OF previously). This
2991 is used to reorder the STACK representing the structure to match the
2992 encoding. This will be used to get round a problem where a PKCS7
2993 structure which was signed could not be verified because the STACK
2994 order did not reflect the encoded order.
2997 *) Reimplement the OCSP ASN1 module using the new code.
3000 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3001 for its ASN1 operations. The old style function pointers still exist
3002 for now but they will eventually go away.
3005 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3006 completely replaces the old ASN1 functionality with a table driven
3007 encoder and decoder which interprets an ASN1_ITEM structure describing
3008 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3009 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3010 has also been converted to the new form.
3013 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3014 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3015 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3016 for negative moduli.
3019 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3020 of not touching the result's sign bit.
3023 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3027 *) Changed the LHASH code to use prototypes for callbacks, and created
3028 macros to declare and implement thin (optionally static) functions
3029 that provide type-safety and avoid function pointer casting for the
3030 type-specific callbacks.
3033 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3035 [Veers Staats <staatsvr@asc.hpc.mil>,
3036 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3038 *) Reformat the FAQ so the different questions and answers can be divided
3039 in sections depending on the subject.
3042 *) Have the zlib compression code load ZLIB.DLL dynamically under
3046 *) New function BN_mod_sqrt for computing square roots modulo a prime
3047 (using the probabilistic Tonelli-Shanks algorithm unless
3048 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3049 be handled deterministically).
3050 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3052 *) Make BN_mod_inverse faster by explicitly handling small quotients
3053 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3054 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3057 *) New function BN_kronecker.
3060 *) Fix BN_gcd so that it works on negative inputs; the result is
3061 positive unless both parameters are zero.
3062 Previously something reasonably close to an infinite loop was
3063 possible because numbers could be growing instead of shrinking
3064 in the implementation of Euclid's algorithm.
3067 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3068 sign of the number in question.
3070 Fix BN_is_word(a,w) to work correctly for w == 0.
3072 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3073 because its test if the absolute value of 'a' equals 'w'.
3074 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3075 it exists mostly for use in the implementations of BN_is_zero(),
3076 BN_is_one(), and BN_is_word().
3079 *) New function BN_swap.
3082 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3083 the exponentiation functions are more likely to produce reasonable
3084 results on negative inputs.
3087 *) Change BN_mod_mul so that the result is always non-negative.
3088 Previously, it could be negative if one of the factors was negative;
3089 I don't think anyone really wanted that behaviour.
3092 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3093 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3094 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3095 and add new functions:
3104 BN_mod_lshift1_quick
3108 These functions always generate non-negative results.
3110 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3111 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3113 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3114 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3115 be reduced modulo m.
3116 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3119 The following entry accidentily appeared in the CHANGES file
3120 distributed with OpenSSL 0.9.7. The modifications described in
3121 it do *not* apply to OpenSSL 0.9.7.
3123 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3124 was actually never needed) and in BN_mul(). The removal in BN_mul()
3125 required a small change in bn_mul_part_recursive() and the addition
3126 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3127 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3128 bn_sub_words() and bn_add_words() except they take arrays with
3133 *) In 'openssl passwd', verify passwords read from the terminal
3134 unless the '-salt' option is used (which usually means that
3135 verification would just waste user's time since the resulting
3136 hash is going to be compared with some given password hash)
3137 or the new '-noverify' option is used.
3139 This is an incompatible change, but it does not affect
3140 non-interactive use of 'openssl passwd' (passwords on the command
3141 line, '-stdin' option, '-in ...' option) and thus should not
3145 *) Remove all references to RSAref, since there's no more need for it.
3148 *) Make DSO load along a path given through an environment variable
3149 (SHLIB_PATH) with shl_load().
3152 *) Constify the ENGINE code as a result of BIGNUM constification.
3153 Also constify the RSA code and most things related to it. In a
3154 few places, most notable in the depth of the ASN.1 code, ugly
3155 casts back to non-const were required (to be solved at a later
3159 *) Make it so the openssl application has all engines loaded by default.
3162 *) Constify the BIGNUM routines a little more.
3165 *) Add the following functions:
3167 ENGINE_load_cswift()
3169 ENGINE_load_atalla()
3171 ENGINE_load_builtin_engines()
3173 That way, an application can itself choose if external engines that
3174 are built-in in OpenSSL shall ever be used or not. The benefit is
3175 that applications won't have to be linked with libdl or other dso
3176 libraries unless it's really needed.
3178 Changed 'openssl engine' to load all engines on demand.
3179 Changed the engine header files to avoid the duplication of some
3180 declarations (they differed!).
3183 *) 'openssl engine' can now list capabilities.
3186 *) Better error reporting in 'openssl engine'.
3189 *) Never call load_dh_param(NULL) in s_server.
3192 *) Add engine application. It can currently list engines by name and
3193 identity, and test if they are actually available.
3196 *) Improve RPM specification file by forcing symbolic linking and making
3197 sure the installed documentation is also owned by root.root.
3198 [Damien Miller <djm@mindrot.org>]
3200 *) Give the OpenSSL applications more possibilities to make use of
3201 keys (public as well as private) handled by engines.
3204 *) Add OCSP code that comes from CertCo.
3207 *) Add VMS support for the Rijndael code.
3210 *) Added untested support for Nuron crypto accelerator.
3213 *) Add support for external cryptographic devices. This code was
3214 previously distributed separately as the "engine" branch.
3215 [Geoff Thorpe, Richard Levitte]
3217 *) Rework the filename-translation in the DSO code. It is now possible to
3218 have far greater control over how a "name" is turned into a filename
3219 depending on the operating environment and any oddities about the
3220 different shared library filenames on each system.
3223 *) Support threads on FreeBSD-elf in Configure.
3226 *) Fix for SHA1 assembly problem with MASM: it produces
3227 warnings about corrupt line number information when assembling
3228 with debugging information. This is caused by the overlapping
3230 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3233 NCONF_get_number() has no error checking at all. As a replacement,
3234 NCONF_get_number_e() is defined (_e for "error checking") and is
3235 promoted strongly. The old NCONF_get_number is kept around for
3236 binary backward compatibility.
3237 Make it possible for methods to load from something other than a BIO,
3238 by providing a function pointer that is given a name instead of a BIO.
3239 For example, this could be used to load configuration data from an
3243 *) Fix for non blocking accept BIOs. Added new I/O special reason
3244 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3245 with non blocking I/O was not possible because no retry code was
3246 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3250 *) Added the beginnings of Rijndael support.
3253 *) Fix for bug in DirectoryString mask setting. Add support for
3254 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3255 to allow certificate printing to more controllable, additional
3256 'certopt' option to 'x509' to allow new printing options to be
3260 *) Clean old EAY MD5 hack from e_os.h.
3263 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3265 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3266 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3267 [Joe Orton, Steve Henson]
3269 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3271 *) Fix additional bug revealed by the NISCC test suite:
3273 Stop bug triggering large recursion when presented with
3274 certain ASN.1 tags (CVE-2003-0851)
3277 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3279 *) Fix various bugs revealed by running the NISCC test suite:
3281 Stop out of bounds reads in the ASN1 code when presented with
3282 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3284 If verify callback ignores invalid public key errors don't try to check
3285 certificate signature with the NULL public key.
3289 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3290 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3294 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3295 extra data after the compression methods not only for TLS 1.0
3296 but also for SSL 3.0 (as required by the specification).
3297 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3299 *) Change X509_certificate_type() to mark the key as exported/exportable
3300 when it's 512 *bits* long, not 512 bytes.
3303 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3305 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3306 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3307 a protocol version number mismatch like a decryption error
3308 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3311 *) Turn on RSA blinding by default in the default implementation
3312 to avoid a timing attack. Applications that don't want it can call
3313 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3314 They would be ill-advised to do so in most cases.
3315 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3317 *) Change RSA blinding code so that it works when the PRNG is not
3318 seeded (in this case, the secret RSA exponent is abused as
3319 an unpredictable seed -- if it is not unpredictable, there
3320 is no point in blinding anyway). Make RSA blinding thread-safe
3321 by remembering the creator's thread ID in rsa->blinding and
3322 having all other threads use local one-time blinding factors
3323 (this requires more computation than sharing rsa->blinding, but
3324 avoids excessive locking; and if an RSA object is not shared
3325 between threads, blinding will still be very fast).
3328 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3330 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3331 via timing by performing a MAC computation even if incorrrect
3332 block cipher padding has been found. This is a countermeasure
3333 against active attacks where the attacker has to distinguish
3334 between bad padding and a MAC verification error. (CVE-2003-0078)
3336 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3337 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3338 Martin Vuagnoux (EPFL, Ilion)]
3340 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3342 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3343 memory from it's contents. This is done with a counter that will
3344 place alternating values in each byte. This can be used to solve
3345 two issues: 1) the removal of calls to memset() by highly optimizing
3346 compilers, and 2) cleansing with other values than 0, since those can
3347 be read through on certain media, for example a swap space on disk.
3350 *) Bugfix: client side session caching did not work with external caching,
3351 because the session->cipher setting was not restored when reloading
3352 from the external cache. This problem was masked, when
3353 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3354 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3357 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3358 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3359 [Zeev Lieber <zeev-l@yahoo.com>]
3361 *) Undo an undocumented change introduced in 0.9.6e which caused
3362 repeated calls to OpenSSL_add_all_ciphers() and
3363 OpenSSL_add_all_digests() to be ignored, even after calling
3367 *) Change the default configuration reader to deal with last line not
3368 being properly terminated.
3371 *) Change X509_NAME_cmp() so it applies the special rules on handling
3372 DN values that are of type PrintableString, as well as RDNs of type
3373 emailAddress where the value has the type ia5String.
3374 [stefank@valicert.com via Richard Levitte]
3376 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3377 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3378 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3379 the bitwise-OR of the two for use by the majority of applications
3380 wanting this behaviour, and update the docs. The documented
3381 behaviour and actual behaviour were inconsistent and had been
3382 changing anyway, so this is more a bug-fix than a behavioural
3384 [Geoff Thorpe, diagnosed by Nadav Har'El]
3386 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3387 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3390 *) Fix initialization code race conditions in
3391 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3392 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3393 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3394 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3395 ssl2_get_cipher_by_char(),
3396 ssl3_get_cipher_by_char().
3397 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3399 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3400 the cached sessions are flushed, as the remove_cb() might use ex_data
3401 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3402 (see [openssl.org #212]).
3403 [Geoff Thorpe, Lutz Jaenicke]
3405 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3406 length, instead of the encoding length to d2i_ASN1_OBJECT.
3409 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3411 *) [In 0.9.6g-engine release:]
3412 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3413 [Lynn Gazis <lgazis@rainbow.com>]
3415 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3417 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3418 and get fix the header length calculation.
3419 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3420 Alon Kantor <alonk@checkpoint.com> (and others),
3423 *) Use proper error handling instead of 'assertions' in buffer
3424 overflow checks added in 0.9.6e. This prevents DoS (the
3425 assertions could call abort()).
3426 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3428 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3430 *) Add various sanity checks to asn1_get_length() to reject
3431 the ASN1 length bytes if they exceed sizeof(long), will appear
3432 negative or the content length exceeds the length of the
3434 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3436 *) Fix cipher selection routines: ciphers without encryption had no flags
3437 for the cipher strength set and where therefore not handled correctly
3438 by the selection routines (PR #130).
3441 *) Fix EVP_dsa_sha macro.
3445 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3446 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3447 that was added in OpenSSL 0.9.6d.
3449 As the countermeasure turned out to be incompatible with some
3450 broken SSL implementations, the new option is part of SSL_OP_ALL.
3451 SSL_OP_ALL is usually employed when compatibility with weird SSL
3452 implementations is desired (e.g. '-bugs' option to 's_client' and
3453 's_server'), so the new option is automatically set in many
3457 *) Changes in security patch:
3459 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3460 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3461 Air Force Materiel Command, USAF, under agreement number
3464 *) Add various sanity checks to asn1_get_length() to reject
3465 the ASN1 length bytes if they exceed sizeof(long), will appear
3466 negative or the content length exceeds the length of the
3467 supplied buffer. (CVE-2002-0659)
3468 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3470 *) Assertions for various potential buffer overflows, not known to
3472 [Ben Laurie (CHATS)]
3474 *) Various temporary buffers to hold ASCII versions of integers were
3475 too small for 64 bit platforms. (CVE-2002-0655)
3476 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3478 *) Remote buffer overflow in SSL3 protocol - an attacker could
3479 supply an oversized session ID to a client. (CVE-2002-0656)
3480 [Ben Laurie (CHATS)]
3482 *) Remote buffer overflow in SSL2 protocol - an attacker could
3483 supply an oversized client master key. (CVE-2002-0656)
3484 [Ben Laurie (CHATS)]
3486 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3488 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3489 encoded as NULL) with id-dsa-with-sha1.
3490 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3492 *) Check various X509_...() return values in apps/req.c.
3493 [Nils Larsch <nla@trustcenter.de>]
3495 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3496 an end-of-file condition would erronously be flagged, when the CRLF
3497 was just at the end of a processed block. The bug was discovered when
3498 processing data through a buffering memory BIO handing the data to a
3499 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3500 <ptsekov@syntrex.com> and Nedelcho Stanev.
3503 *) Implement a countermeasure against a vulnerability recently found
3504 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3505 before application data chunks to avoid the use of known IVs
3506 with data potentially chosen by the attacker.
3509 *) Fix length checks in ssl3_get_client_hello().
3512 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3513 to prevent ssl3_read_internal() from incorrectly assuming that
3514 ssl3_read_bytes() found application data while handshake
3515 processing was enabled when in fact s->s3->in_read_app_data was
3516 merely automatically cleared during the initial handshake.
3517 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3519 *) Fix object definitions for Private and Enterprise: they were not
3520 recognized in their shortname (=lowercase) representation. Extend
3521 obj_dat.pl to issue an error when using undefined keywords instead
3522 of silently ignoring the problem (Svenning Sorensen
3523 <sss@sss.dnsalias.net>).
3526 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3527 generators, i.e. generators other than 2 and 5. (Previously, the
3528 code did not properly initialise the 'add' and 'rem' values to
3529 BN_generate_prime().)
3531 In the new general case, we do not insist that 'generator' is
3532 actually a primitive root: This requirement is rather pointless;
3533 a generator of the order-q subgroup is just as good, if not
3537 *) Map new X509 verification errors to alerts. Discovered and submitted by
3538 Tom Wu <tom@arcot.com>.
3541 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3542 returning non-zero before the data has been completely received
3543 when using non-blocking I/O.
3544 [Bodo Moeller; problem pointed out by John Hughes]
3546 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3547 [Ben Laurie, Lutz Jaenicke]
3549 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3550 Yoram Zahavi <YoramZ@gilian.com>).
3553 *) Add information about CygWin 1.3 and on, and preserve proper
3554 configuration for the versions before that.
3555 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3557 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3558 check whether we deal with a copy of a session and do not delete from
3559 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3560 <izhar@checkpoint.com>.
3563 *) Do not store session data into the internal session cache, if it
3564 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3565 flag is set). Proposed by Aslam <aslam@funk.com>.
3568 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3572 *) [In 0.9.6d-engine release:]
3573 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3574 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3576 *) Add the configuration target linux-s390x.
3577 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3579 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3580 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3581 variable as an indication that a ClientHello message has been
3582 received. As the flag value will be lost between multiple
3583 invocations of ssl3_accept when using non-blocking I/O, the
3584 function may not be aware that a handshake has actually taken
3585 place, thus preventing a new session from being added to the
3588 To avoid this problem, we now set s->new_session to 2 instead of
3589 using a local variable.
3590 [Lutz Jaenicke, Bodo Moeller]
3592 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3593 if the SSL_R_LENGTH_MISMATCH error is detected.
3594 [Geoff Thorpe, Bodo Moeller]
3596 *) New 'shared_ldflag' column in Configure platform table.
3599 *) Fix EVP_CIPHER_mode macro.
3600 ["Dan S. Camper" <dan@bti.net>]
3602 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3603 type, we must throw them away by setting rr->length to 0.
3604 [D P Chang <dpc@qualys.com>]
3606 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3608 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3609 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3610 worked incorrectly for those cases where range = 10..._2 and
3611 3*range is two bits longer than range.)
3614 *) Only add signing time to PKCS7 structures if it is not already
3618 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3619 OBJ_ld_ce should be OBJ_id_ce.
3620 Also some ip-pda OIDs in crypto/objects/objects.txt were
3621 incorrect (cf. RFC 3039).
3622 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3624 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3625 returns early because it has nothing to do.
3626 [Andy Schneider <andy.schneider@bjss.co.uk>]
3628 *) [In 0.9.6c-engine release:]
3629 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3630 [Andy Schneider <andy.schneider@bjss.co.uk>]
3632 *) [In 0.9.6c-engine release:]
3633 Add support for Cryptographic Appliance's keyserver technology.
3634 (Use engine 'keyclient')
3635 [Cryptographic Appliances and Geoff Thorpe]
3637 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3638 is called via tools/c89.sh because arguments have to be
3639 rearranged (all '-L' options must appear before the first object
3641 [Richard Shapiro <rshapiro@abinitio.com>]
3643 *) [In 0.9.6c-engine release:]
3644 Add support for Broadcom crypto accelerator cards, backported
3646 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3648 *) [In 0.9.6c-engine release:]
3649 Add support for SureWare crypto accelerator cards from
3650 Baltimore Technologies. (Use engine 'sureware')
3651 [Baltimore Technologies and Mark Cox]
3653 *) [In 0.9.6c-engine release:]
3654 Add support for crypto accelerator cards from Accelerated
3655 Encryption Processing, www.aep.ie. (Use engine 'aep')
3656 [AEP Inc. and Mark Cox]
3658 *) Add a configuration entry for gcc on UnixWare.
3659 [Gary Benson <gbenson@redhat.com>]
3661 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3662 messages are stored in a single piece (fixed-length part and
3663 variable-length part combined) and fix various bugs found on the way.
3666 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3667 instead. BIO_gethostbyname() does not know what timeouts are
3668 appropriate, so entries would stay in cache even when they have
3670 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3672 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3673 faced with a pathologically small ClientHello fragment that does
3674 not contain client_version: Instead of aborting with an error,
3675 simply choose the highest available protocol version (i.e.,
3676 TLS 1.0 unless it is disabled). In practice, ClientHello
3677 messages are never sent like this, but this change gives us
3678 strictly correct behaviour at least for TLS.
3681 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3682 never resets s->method to s->ctx->method when called from within
3683 one of the SSL handshake functions.
3684 [Bodo Moeller; problem pointed out by Niko Baric]
3686 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3687 (sent using the client's version number) if client_version is
3688 smaller than the protocol version in use. Also change
3689 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3690 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3691 the client will at least see that alert.
3694 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3698 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3699 client receives HelloRequest while in a handshake.
3700 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3702 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3703 should end in 'break', not 'goto end' which circuments various
3704 cleanups done in state SSL_ST_OK. But session related stuff
3705 must be disabled for SSL_ST_OK in the case that we just sent a
3708 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3709 before just sending a HelloRequest.
3710 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3712 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3713 reveal whether illegal block cipher padding was found or a MAC
3714 verification error occured. (Neither SSLerr() codes nor alerts
3715 are directly visible to potential attackers, but the information
3716 may leak via logfiles.)
3718 Similar changes are not required for the SSL 2.0 implementation
3719 because the number of padding bytes is sent in clear for SSL 2.0,
3720 and the extra bytes are just ignored. However ssl/s2_pkt.c
3721 failed to verify that the purported number of padding bytes is in
3725 *) Add OpenUNIX-8 support including shared libraries
3726 (Boyd Lynn Gerber <gerberb@zenez.com>).
3729 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3730 'wristwatch attack' using huge encoding parameters (cf.
3731 James H. Manger's CRYPTO 2001 paper). Note that the
3732 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3733 encoding parameters and hence was not vulnerable.
3736 *) BN_sqr() bug fix.
3737 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3739 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3740 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3741 followed by modular reduction.
3742 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3744 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3745 equivalent based on BN_pseudo_rand() instead of BN_rand().
3748 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3749 This function was broken, as the check for a new client hello message
3750 to handle SGC did not allow these large messages.
3751 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3754 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3757 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3758 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3761 *) Rework the configuration and shared library support for Tru64 Unix.
3762 The configuration part makes use of modern compiler features and
3763 still retains old compiler behavior for those that run older versions
3764 of the OS. The shared library support part includes a variant that
3765 uses the RPATH feature, and is available through the special
3766 configuration target "alpha-cc-rpath", which will never be selected
3768 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3770 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3771 with the same message size as in ssl3_get_certificate_request().
3772 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3773 messages might inadvertently be reject as too long.
3774 [Petr Lampa <lampa@fee.vutbr.cz>]
3776 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3779 *) Modified SSL library such that the verify_callback that has been set
3780 specificly for an SSL object with SSL_set_verify() is actually being
3781 used. Before the change, a verify_callback set with this function was
3782 ignored and the verify_callback() set in the SSL_CTX at the time of
3783 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3784 to allow the necessary settings.
3787 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3788 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3789 done automatically (in contradiction to the requirements of the C
3790 standard). This made problems when used from OpenSSH.
3793 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3794 dh->length and always used
3796 BN_rand_range(priv_key, dh->p).
3798 BN_rand_range() is not necessary for Diffie-Hellman, and this
3799 specific range makes Diffie-Hellman unnecessarily inefficient if
3800 dh->length (recommended exponent length) is much smaller than the
3801 length of dh->p. We could use BN_rand_range() if the order of
3802 the subgroup was stored in the DH structure, but we only have
3807 BN_rand(priv_key, l, ...)
3809 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3815 RSA_eay_public_encrypt
3816 RSA_eay_private_decrypt
3817 RSA_eay_private_encrypt (signing)
3818 RSA_eay_public_decrypt (signature verification)
3820 (default implementations for RSA_public_encrypt,
3821 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3822 always reject numbers >= n.
3825 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3826 to synchronize access to 'locking_thread'. This is necessary on
3827 systems where access to 'locking_thread' (an 'unsigned long'
3828 variable) is not atomic.
3831 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3832 *before* setting the 'crypto_lock_rand' flag. The previous code had
3833 a race condition if 0 is a valid thread ID.
3834 [Travis Vitek <vitek@roguewave.com>]
3836 *) Add support for shared libraries under Irix.
3837 [Albert Chin-A-Young <china@thewrittenword.com>]
3839 *) Add configuration option to build on Linux on both big-endian and
3841 [Ralf Baechle <ralf@uni-koblenz.de>]
3843 *) Add the possibility to create shared libraries on HP-UX.
3846 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3848 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3849 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3850 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3851 PRNG state recovery was possible based on the output of
3852 one PRNG request appropriately sized to gain knowledge on
3853 'md' followed by enough consecutive 1-byte PRNG requests
3854 to traverse all of 'state'.
3856 1. When updating 'md_local' (the current thread's copy of 'md')
3857 during PRNG output generation, hash all of the previous
3858 'md_local' value, not just the half used for PRNG output.
3860 2. Make the number of bytes from 'state' included into the hash
3861 independent from the number of PRNG bytes requested.
3863 The first measure alone would be sufficient to avoid
3864 Markku-Juhani's attack. (Actually it had never occurred
3865 to me that the half of 'md_local' used for chaining was the
3866 half from which PRNG output bytes were taken -- I had always
3867 assumed that the secret half would be used.) The second
3868 measure makes sure that additional data from 'state' is never
3869 mixed into 'md_local' in small portions; this heuristically
3870 further strengthens the PRNG.
3873 *) Fix crypto/bn/asm/mips3.s.
3876 *) When only the key is given to "enc", the IV is undefined. Print out
3877 an error message in this case.
3880 *) Handle special case when X509_NAME is empty in X509 printing routines.
3883 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3884 positive and less than q.
3887 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3888 used: it isn't thread safe and the add_lock_callback should handle
3890 [Paul Rose <Paul.Rose@bridge.com>]
3892 *) Verify that incoming data obeys the block size in
3893 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3897 [Ulf Möller, Bodo Möller]
3899 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3900 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3901 when fixing the server behaviour for backwards-compatible 'client
3902 hello' messages. (Note that the attack is impractical against
3903 SSL 3.0 and TLS 1.0 anyway because length and version checking
3904 means that the probability of guessing a valid ciphertext is
3905 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3908 Before 0.9.5, the countermeasure (hide the error by generating a
3909 random 'decryption result') did not work properly because
3910 ERR_clear_error() was missing, meaning that SSL_get_error() would
3911 detect the supposedly ignored error.
3913 Both problems are now fixed.
3916 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3917 (previously it was 1024).
3920 *) Fix for compatibility mode trust settings: ignore trust settings
3921 unless some valid trust or reject settings are present.
3924 *) Fix for blowfish EVP: its a variable length cipher.
3927 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3928 parameters in DSA public key structures and return an error in the
3929 DSA routines if parameters are absent.
3932 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3933 in the current directory if neither $RANDFILE nor $HOME was set.
3934 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3935 caused some confusion to Windows users who haven't defined $HOME.
3936 Thus RAND_file_name() is changed again: e_os.h can define a
3937 DEFAULT_HOME, which will be used if $HOME is not set.
3938 For Windows, we use "C:"; on other platforms, we still require
3939 environment variables.
3941 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3942 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3943 having multiple threads call RAND_poll() concurrently.
3946 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3947 combination of a flag and a thread ID variable.
3948 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3949 flag), *other* threads can enter ssleay_add_bytes without obeying
3950 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3951 that they do not hold after the first thread unsets add_do_not_lock).
3954 *) Change bctest again: '-x' expressions are not available in all
3958 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3960 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3961 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3963 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3964 the default extension for executables, if any. Also, make the perl
3965 scripts that use symlink() to test if it really exists and use "cp"
3966 if it doesn't. All this made OpenSSL compilable and installable in
3970 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3971 If SEQUENCE is length is indefinite just set c->slen to the total
3972 amount of data available.
3973 [Steve Henson, reported by shige@FreeBSD.org]
3974 [This change does not apply to 0.9.7.]
3976 *) Change bctest to avoid here-documents inside command substitution
3977 (workaround for FreeBSD /bin/sh bug).
3978 For compatibility with Ultrix, avoid shell functions (introduced
3979 in the bctest version that searches along $PATH).
3982 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3983 with des_encrypt() defined on some operating systems, like Solaris
3987 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3988 On the Importance of Eliminating Errors in Cryptographic
3989 Computations, J. Cryptology 14 (2001) 2, 101-119,
3990 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3993 *) MIPS assembler BIGNUM division bug fix.
3996 *) Disabled incorrect Alpha assembler code.
3999 *) Fix PKCS#7 decode routines so they correctly update the length
4000 after reading an EOC for the EXPLICIT tag.
4002 [This change does not apply to 0.9.7.]
4004 *) Fix bug in PKCS#12 key generation routines. This was triggered
4005 if a 3DES key was generated with a 0 initial byte. Include
4006 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4007 (but broken) behaviour.
4010 *) Enhance bctest to search for a working bc along $PATH and print
4012 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4014 *) Fix memory leaks in err.c: free err_data string if necessary;
4015 don't write to the wrong index in ERR_set_error_data.
4018 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4022 *) Replace rdtsc with _emit statements for VC++ version 5.
4023 [Jeremy Cooper <jeremy@baymoo.org>]
4025 *) Make it possible to reuse SSLv2 sessions.
4028 *) In copy_email() check for >= 0 as a return value for
4029 X509_NAME_get_index_by_NID() since 0 is a valid index.
4030 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4032 *) Avoid coredump with unsupported or invalid public keys by checking if
4033 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4034 PKCS7_verify() fails with non detached data.
4037 *) Don't use getenv in library functions when run as setuid/setgid.
4038 New function OPENSSL_issetugid().
4041 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4042 due to incorrect handling of multi-threading:
4044 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4046 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4048 3. Count how many times MemCheck_off() has been called so that
4049 nested use can be treated correctly. This also avoids
4050 inband-signalling in the previous code (which relied on the
4051 assumption that thread ID 0 is impossible).
4054 *) Add "-rand" option also to s_client and s_server.
4057 *) Fix CPU detection on Irix 6.x.
4058 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4059 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4061 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4064 [This change does not apply to 0.9.7.]
4066 *) Use the cached encoding of an X509_NAME structure rather than
4067 copying it. This is apparently the reason for the libsafe "errors"
4068 but the code is actually correct.
4071 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4072 Bleichenbacher's DSA attack.
4073 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4074 to be set and top=0 forces the highest bit to be set; top=-1 is new
4075 and leaves the highest bit random.
4076 [Ulf Moeller, Bodo Moeller]
4078 *) In the NCONF_...-based implementations for CONF_... queries
4079 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4080 a temporary CONF structure with the data component set to NULL
4081 (which gives segmentation faults in lh_retrieve).
4082 Instead, use NULL for the CONF pointer in CONF_get_string and
4083 CONF_get_number (which may use environment variables) and directly
4084 return NULL from CONF_get_section.
4087 *) Fix potential buffer overrun for EBCDIC.
4090 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4091 keyUsage if basicConstraints absent for a CA.
4094 *) Make SMIME_write_PKCS7() write mail header values with a format that
4095 is more generally accepted (no spaces before the semicolon), since
4096 some programs can't parse those values properly otherwise. Also make
4097 sure BIO's that break lines after each write do not create invalid
4101 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4102 macros previously used would not encode an empty SEQUENCE OF
4103 and break the signature.
4105 [This change does not apply to 0.9.7.]
4107 *) Zero the premaster secret after deriving the master secret in
4111 *) Add some EVP_add_digest_alias registrations (as found in
4112 OpenSSL_add_all_digests()) to SSL_library_init()
4113 aka OpenSSL_add_ssl_algorithms(). This provides improved
4114 compatibility with peers using X.509 certificates
4115 with unconventional AlgorithmIdentifier OIDs.
4118 *) Fix for Irix with NO_ASM.
4119 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4121 *) ./config script fixes.
4122 [Ulf Moeller, Richard Levitte]
4124 *) Fix 'openssl passwd -1'.
4127 *) Change PKCS12_key_gen_asc() so it can cope with non null
4128 terminated strings whose length is passed in the passlen
4129 parameter, for example from PEM callbacks. This was done
4130 by adding an extra length parameter to asc2uni().
4131 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4133 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4134 call failed, free the DSA structure.
4137 *) Fix to uni2asc() to cope with zero length Unicode strings.
4138 These are present in some PKCS#12 files.
4141 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4142 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4143 when writing a 32767 byte record.
4144 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4146 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4147 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4149 (RSA objects have a reference count access to which is protected
4150 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4151 so they are meant to be shared between threads.)
4152 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4153 "Reddie, Steven" <Steven.Reddie@ca.com>]
4155 *) Fix a deadlock in CRYPTO_mem_leaks().
4158 *) Use better test patterns in bntest.
4161 *) rand_win.c fix for Borland C.
4164 *) BN_rshift bugfix for n == 0.
4167 *) Add a 'bctest' script that checks for some known 'bc' bugs
4168 so that 'make test' does not abort just because 'bc' is broken.
4171 *) Store verify_result within SSL_SESSION also for client side to
4172 avoid potential security hole. (Re-used sessions on the client side
4173 always resulted in verify_result==X509_V_OK, not using the original
4174 result of the server certificate verification.)
4177 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4178 SSL3_RT_APPLICATION_DATA, return 0.
4179 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4183 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4184 releases, have been re-implemented by renaming the previous
4185 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4186 and ssl3_read_internal, respectively, and adding 'peek' parameters
4187 to them. The new ssl[23]_{read,peek} functions are calls to
4188 ssl[23]_read_internal with the 'peek' flag set appropriately.
4189 A 'peek' parameter has also been added to ssl3_read_bytes, which
4190 does the actual work for ssl3_read_internal.
4193 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4194 the method-specific "init()" handler. Also clean up ex_data after
4195 calling the method-specific "finish()" handler. Previously, this was
4196 happening the other way round.
4199 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4200 The previous value, 12, was not always sufficient for BN_mod_exp().
4203 *) Make sure that shared libraries get the internal name engine with
4204 the full version number and not just 0. This should mark the
4205 shared libraries as not backward compatible. Of course, this should
4206 be changed again when we can guarantee backward binary compatibility.
4209 *) Fix typo in get_cert_by_subject() in by_dir.c
4210 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4212 *) Rework the system to generate shared libraries:
4214 - Make note of the expected extension for the shared libraries and
4215 if there is a need for symbolic links from for example libcrypto.so.0
4216 to libcrypto.so.0.9.7. There is extended info in Configure for
4219 - Make as few rebuilds of the shared libraries as possible.
4221 - Still avoid linking the OpenSSL programs with the shared libraries.
4223 - When installing, install the shared libraries separately from the
4227 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4229 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4230 and not in SSL_clear because the latter is also used by the
4231 accept/connect functions; previously, the settings made by
4232 SSL_set_read_ahead would be lost during the handshake.
4233 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4235 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4236 Previously, it would create entries for disableed algorithms no
4240 *) Added several new manual pages for SSL_* function.
4243 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4245 *) In ssl23_get_client_hello, generate an error message when faced
4246 with an initial SSL 3.0/TLS record that is too small to contain the
4247 first two bytes of the ClientHello message, i.e. client_version.
4248 (Note that this is a pathologic case that probably has never happened
4249 in real life.) The previous approach was to use the version number
4250 from the record header as a substitute; but our protocol choice
4251 should not depend on that one because it is not authenticated
4252 by the Finished messages.
4255 *) More robust randomness gathering functions for Windows.
4256 [Jeffrey Altman <jaltman@columbia.edu>]
projects / openssl.git / blob