5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) Implement the Supported Point Formats Extension for
8 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
11 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
12 for the psk identity [hint] and the psk callback functions to the
13 SSL_SESSION, SSL and SSL_CTX structure.
16 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
20 SSL_CTX_use_psk_identity_hint
21 SSL_get_psk_identity_hint
23 SSL_use_psk_identity_hint
25 [Mika Kousa and Pasi Eronen of Nokia Corporation]
27 *) Add RFC 3161 compliant time stamp request creation, response generation
28 and response verification functionality.
29 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
31 *) Add initial support for TLS extensions, specifically for the server_name
32 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
33 have new members for a host name. The SSL data structure has an
34 additional member SSL_CTX *initial_ctx so that new sessions can be
35 stored in that context to allow for session resumption, even after the
36 SSL has been switched to a new SSL_CTX in reaction to a client's
37 server_name extension.
39 New functions (subject to change):
42 SSL_get_servername_type()
45 New CTRL codes and macros (subject to change):
47 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
48 - SSL_CTX_set_tlsext_servername_callback()
49 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
50 - SSL_CTX_set_tlsext_servername_arg()
51 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
53 openssl s_client has a new '-servername ...' option.
55 openssl s_server has new options '-servername_host ...', '-cert2 ...',
56 '-key2 ...', '-servername_fatal' (subject to change). This allows
57 testing the HostName extension for a specific single host name ('-cert'
58 and '-key' remain fallbacks for handshakes without HostName
59 negotiation). If the unrecogninzed_name alert has to be sent, this by
60 default is a warning; it becomes fatal with the '-servername_fatal'
63 [Peter Sylvester, Remy Allais, Christophe Renou]
65 *) Whirlpool hash implementation is added.
68 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
69 bn(64,32). Because of instruction set limitations it doesn't have
70 any negative impact on performance. This was done mostly in order
71 to make it possible to share assembler modules, such as bn_mul_mont
72 implementations, between 32- and 64-bit builds without hassle.
75 *) Disable rogue ciphersuites:
77 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
78 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
79 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
81 The latter two were purportedly from
82 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
85 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
86 remain enabled for now, but are just as unofficial, and the ID
87 has long expired; these will probably disappear soon.
90 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
91 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
95 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
96 dedicated Montgomery multiplication procedure, is introduced.
97 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
98 "64-bit" performance on certain 32-bit targets.
101 *) New option SSL_OP_NO_COMP to disable use of compression selectively
102 in SSL structures. New SSL ctrl to set maximum send fragment size.
103 Save memory by seeting the I/O buffer sizes dynamically instead of
104 using the maximum available value.
107 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
108 in addition to the text details.
111 *) Very, very preliminary EXPERIMENTAL support for printing of general
112 ASN1 structures. This currently produces rather ugly output and doesn't
113 handle several customised structures at all.
116 *) Integrated support for PVK file format and some related formats such
117 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
118 these in the 'rsa' and 'dsa' utilities.
121 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
124 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
125 place for the (very old) "NETSCAPE" format certificates which are now
126 handled using new ASN1 code equivalents.
129 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
130 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
131 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
134 *) Modify CRL distribution points extension code to print out previously
135 unsupported fields. Enhance extension setting code to allow setting of
139 *) Add print and set support for Issuing Distribution Point CRL extension.
142 Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
144 *) Link in manifests for VC++ if needed.
145 [Austin Ziegler <halostatue@gmail.com>]
147 *) Update support for ECC-based TLS ciphersuites according to
148 draft-ietf-tls-ecc-12.txt with proposed changes (but without
149 TLS extensions, which are supported starting with the 0.9.9
150 branch, not in the OpenSSL 0.9.8 branch).
153 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
154 opaque EVP_CIPHER_CTX handling.
157 *) Fixes and enhancements to zlib compression code. We now only use
158 "zlib1.dll" and use the default __cdecl calling convention on Win32
159 to conform with the standards mentioned here:
160 http://www.zlib.net/DLL_FAQ.txt
161 Static zlib linking now works on Windows and the new --with-zlib-include
162 --with-zlib-lib options to Configure can be used to supply the location
163 of the headers and library. Gracefully handle case where zlib library
167 *) Several fixes and enhancements to the OID generation code. The old code
168 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
169 handle numbers larger than ULONG_MAX, truncated printing and had a
170 non standard OBJ_obj2txt() behaviour.
173 *) Add support for building of engines under engine/ as shared libraries
174 under VC++ build system.
177 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
178 Hopefully, we will not see any false combination of paths any more.
181 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
183 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
184 (part of SSL_OP_ALL). This option used to disable the
185 countermeasure against man-in-the-middle protocol-version
186 rollback in the SSL 2.0 server implementation, which is a bad
187 idea. (CVE-2005-2969)
189 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
190 for Information Security, National Institute of Advanced Industrial
191 Science and Technology [AIST], Japan)]
193 *) Add two function to clear and return the verify parameter flags.
196 *) Keep cipherlists sorted in the source instead of sorting them at
197 runtime, thus removing the need for a lock.
200 *) Avoid some small subgroup attacks in Diffie-Hellman.
201 [Nick Mathewson and Ben Laurie]
203 *) Add functions for well-known primes.
206 *) Extended Windows CE support.
207 [Satoshi Nakamura and Andy Polyakov]
209 *) Initialize SSL_METHOD structures at compile time instead of during
210 runtime, thus removing the need for a lock.
213 *) Make PKCS7_decrypt() work even if no certificate is supplied by
214 attempting to decrypt each encrypted key in turn. Add support to
218 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
220 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
223 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
224 key into the same file any more.
227 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
230 *) Add -utf8 command line and config file option to 'ca'.
231 [Stefan <stf@udoma.org]
233 *) Removed the macro des_crypt(), as it seems to conflict with some
234 libraries. Use DES_crypt().
237 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
238 involves renaming the source and generated shared-libs for
239 both. The engines will accept the corrected or legacy ids
240 ('ncipher' and '4758_cca' respectively) when binding. NB,
241 this only applies when building 'shared'.
242 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
244 *) Add attribute functions to EVP_PKEY structure. Modify
245 PKCS12_create() to recognize a CSP name attribute and
246 use it. Make -CSP option work again in pkcs12 utility.
249 *) Add new functionality to the bn blinding code:
250 - automatic re-creation of the BN_BLINDING parameters after
251 a fixed number of uses (currently 32)
252 - add new function for parameter creation
253 - introduce flags to control the update behaviour of the
254 BN_BLINDING parameters
255 - hide BN_BLINDING structure
256 Add a second BN_BLINDING slot to the RSA structure to improve
257 performance when a single RSA object is shared among several
261 *) Add support for DTLS.
262 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
264 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
265 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
268 *) Remove buggy and incompletet DH cert support from
269 ssl/ssl_rsa.c and ssl/s3_both.c
272 *) Use SHA-1 instead of MD5 as the default digest algorithm for
273 the apps/openssl applications.
276 *) Compile clean with "-Wall -Wmissing-prototypes
277 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
278 DEBUG_SAFESTACK must also be set.
281 *) Change ./Configure so that certain algorithms can be disabled by default.
282 The new counterpiece to "no-xxx" is "enable-xxx".
284 The patented RC5 and MDC2 algorithms will now be disabled unless
285 "enable-rc5" and "enable-mdc2", respectively, are specified.
287 (IDEA remains enabled despite being patented. This is because IDEA
288 is frequently required for interoperability, and there is no license
289 fee for non-commercial use. As before, "no-idea" can be used to
290 avoid this algorithm.)
294 *) Add processing of proxy certificates (see RFC 3820). This work was
295 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
296 EGEE (Enabling Grids for E-science in Europe).
299 *) RC4 performance overhaul on modern architectures/implementations, such
300 as Intel P4, IA-64 and AMD64.
303 *) New utility extract-section.pl. This can be used specify an alternative
304 section number in a pod file instead of having to treat each file as
305 a separate case in Makefile. This can be done by adding two lines to the
308 =for comment openssl_section:XXX
310 The blank line is mandatory.
314 *) New arguments -certform, -keyform and -pass for s_client and s_server
315 to allow alternative format key and certificate files and passphrase
319 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
320 update associated structures and add various utility functions.
322 Add new policy related verify parameters, include policy checking in
323 standard verify code. Enhance 'smime' application with extra parameters
324 to support policy checking and print out.
327 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
328 Nehemiah processors. These extensions support AES encryption in hardware
329 as well as RNG (though RNG support is currently disabled).
330 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
332 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
335 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
336 [Andy Polyakov and a number of other people]
338 *) Improved PowerPC platform support. Most notably BIGNUM assembler
339 implementation contributed by IBM.
340 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
342 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
343 exponent rather than 'unsigned long'. There is a corresponding change to
344 the new 'rsa_keygen' element of the RSA_METHOD structure.
345 [Jelte Jansen, Geoff Thorpe]
347 *) Functionality for creating the initial serial number file is now
348 moved from CA.pl to the 'ca' utility with a new option -create_serial.
350 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
351 number file to 1, which is bound to cause problems. To avoid
352 the problems while respecting compatibility between different 0.9.7
353 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
354 CA.pl for serial number initialization. With the new release 0.9.8,
355 we can fix the problem directly in the 'ca' utility.)
358 *) Reduced header interdepencies by declaring more opaque objects in
359 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
360 give fewer recursive includes, which could break lazy source code - so
361 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
362 developers should define this symbol when building and using openssl to
363 ensure they track the recommended behaviour, interfaces, [etc], but
364 backwards-compatible behaviour prevails when this isn't defined.
367 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
370 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
371 This will generate a random key of the appropriate length based on the
372 cipher context. The EVP_CIPHER can provide its own random key generation
373 routine to support keys of a specific form. This is used in the des and
374 3des routines to generate a key of the correct parity. Update S/MIME
375 code to use new functions and hence generate correct parity DES keys.
376 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
377 valid (weak or incorrect parity).
380 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
381 as looking them up. This is useful when the verified structure may contain
382 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
383 present unless the new PKCS7_NO_CRL flag is asserted.
386 *) Extend ASN1 oid configuration module. It now additionally accepts the
389 shortName = some long name, 1.2.3.4
392 *) Reimplemented the BN_CTX implementation. There is now no more static
393 limitation on the number of variables it can handle nor the depth of the
394 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
395 information can now expand as required, and rather than having a single
396 static array of bignums, BN_CTX now uses a linked-list of such arrays
397 allowing it to expand on demand whilst maintaining the usefulness of
401 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
402 to allow all RSA operations to function using a single BN_CTX.
405 *) Preliminary support for certificate policy evaluation and checking. This
406 is initially intended to pass the tests outlined in "Conformance Testing
407 of Relying Party Client Certificate Path Processing Logic" v1.07.
410 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
411 remained unused and not that useful. A variety of other little bignum
412 tweaks and fixes have also been made continuing on from the audit (see
416 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
417 associated ASN1, EVP and SSL functions and old ASN1 macros.
420 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
421 and this should never fail. So the return value from the use of
422 BN_set_word() (which can fail due to needless expansion) is now deprecated;
423 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
426 *) BN_CTX_get() should return zero-valued bignums, providing the same
427 initialised value as BN_new().
428 [Geoff Thorpe, suggested by Ulf Möller]
430 *) Support for inhibitAnyPolicy certificate extension.
433 *) An audit of the BIGNUM code is underway, for which debugging code is
434 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
435 is considered valid when processing BIGNUMs, and causes execution to
436 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
437 further steps are taken to deliberately pollute unused data in BIGNUM
438 structures to try and expose faulty code further on. For now, openssl will
439 (in its default mode of operation) continue to tolerate the inconsistent
440 forms that it has tolerated in the past, but authors and packagers should
441 consider trying openssl and their own applications when compiled with
442 these debugging symbols defined. It will help highlight potential bugs in
443 their own code, and will improve the test coverage for OpenSSL itself. At
444 some point, these tighter rules will become openssl's default to improve
445 maintainability, though the assert()s and other overheads will remain only
446 in debugging configurations. See bn.h for more details.
447 [Geoff Thorpe, Nils Larsch, Ulf Möller]
449 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
450 that can only be obtained through BN_CTX_new() (which implicitly
451 initialises it). The presence of this function only made it possible
452 to overwrite an existing structure (and cause memory leaks).
455 *) Because of the callback-based approach for implementing LHASH as a
456 template type, lh_insert() adds opaque objects to hash-tables and
457 lh_doall() or lh_doall_arg() are typically used with a destructor callback
458 to clean up those corresponding objects before destroying the hash table
459 (and losing the object pointers). So some over-zealous constifications in
460 LHASH have been relaxed so that lh_insert() does not take (nor store) the
461 objects as "const" and the lh_doall[_arg] callback wrappers are not
462 prototyped to have "const" restrictions on the object pointers they are
463 given (and so aren't required to cast them away any more).
466 *) The tmdiff.h API was so ugly and minimal that our own timing utility
467 (speed) prefers to use its own implementation. The two implementations
468 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
469 its object type properly exposed (MS_TM) instead of casting to/from "char
470 *". This may still change yet if someone realises MS_TM and "ms_time_***"
471 aren't necessarily the greatest nomenclatures - but this is what was used
472 internally to the implementation so I've used that for now.
475 *) Ensure that deprecated functions do not get compiled when
476 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
477 the self-tests were still using deprecated key-generation functions so
478 these have been updated also.
481 *) Reorganise PKCS#7 code to separate the digest location functionality
482 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
483 New function PKCS7_set_digest() to set the digest type for PKCS#7
484 digestedData type. Add additional code to correctly generate the
485 digestedData type and add support for this type in PKCS7 initialization
489 *) New function PKCS7_set0_type_other() this initializes a PKCS7
490 structure of type "other".
493 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
494 sure the loop does correctly stop and breaking ("division by zero")
495 modulus operations are not performed. The (pre-generated) prime
496 table crypto/bn/bn_prime.h was already correct, but it could not be
497 re-generated on some platforms because of the "division by zero"
498 situation in the script.
499 [Ralf S. Engelschall]
501 *) Update support for ECC-based TLS ciphersuites according to
502 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
503 SHA-1 now is only used for "small" curves (where the
504 representation of a field element takes up to 24 bytes); for
505 larger curves, the field element resulting from ECDH is directly
506 used as premaster secret.
507 [Douglas Stebila (Sun Microsystems Laboratories)]
509 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
510 curve secp160r1 to the tests.
511 [Douglas Stebila (Sun Microsystems Laboratories)]
513 *) Add the possibility to load symbols globally with DSO.
514 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
516 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
517 control of the error stack.
520 *) Add support for STORE in ENGINE.
523 *) Add the STORE type. The intention is to provide a common interface
524 to certificate and key stores, be they simple file-based stores, or
525 HSM-type store, or LDAP stores, or...
526 NOTE: The code is currently UNTESTED and isn't really used anywhere.
529 *) Add a generic structure called OPENSSL_ITEM. This can be used to
530 pass a list of arguments to any function as well as provide a way
531 for a function to pass data back to the caller.
534 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
535 works like BUF_strdup() but can be used to duplicate a portion of
536 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
540 *) Add the function sk_find_ex() which works like sk_find(), but will
541 return an index to an element even if an exact match couldn't be
542 found. The index is guaranteed to point at the element where the
543 searched-for key would be inserted to preserve sorting order.
546 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
547 takes an extra flags argument for optional functionality. Currently,
548 the following flags are defined:
550 OBJ_BSEARCH_VALUE_ON_NOMATCH
551 This one gets OBJ_bsearch_ex() to return a pointer to the first
552 element where the comparing function returns a negative or zero
555 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
556 This one gets OBJ_bsearch_ex() to return a pointer to the first
557 element where the comparing function returns zero. This is useful
558 if there are more than one element where the comparing function
562 *) Make it possible to create self-signed certificates with 'openssl ca'
563 in such a way that the self-signed certificate becomes part of the
564 CA database and uses the same mechanisms for serial number generation
565 as all other certificate signing. The new flag '-selfsign' enables
566 this functionality. Adapt CA.sh and CA.pl.in.
569 *) Add functionality to check the public key of a certificate request
570 against a given private. This is useful to check that a certificate
571 request can be signed by that key (self-signing).
574 *) Make it possible to have multiple active certificates with the same
575 subject in the CA index file. This is done only if the keyword
576 'unique_subject' is set to 'no' in the main CA section (default
577 if 'CA_default') of the configuration file. The value is saved
578 with the database itself in a separate index attribute file,
579 named like the index file with '.attr' appended to the name.
582 *) Generate muti valued AVAs using '+' notation in config files for
586 *) Support for nameConstraints certificate extension.
589 *) Support for policyConstraints certificate extension.
592 *) Support for policyMappings certificate extension.
595 *) Make sure the default DSA_METHOD implementation only uses its
596 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
597 and change its own handlers to be NULL so as to remove unnecessary
598 indirection. This lets alternative implementations fallback to the
599 default implementation more easily.
602 *) Support for directoryName in GeneralName related extensions
606 *) Make it possible to link applications using Makefile.shared.
607 Make that possible even when linking against static libraries!
610 *) Support for single pass processing for S/MIME signing. This now
611 means that S/MIME signing can be done from a pipe, in addition
612 cleartext signing (multipart/signed type) is effectively streaming
613 and the signed data does not need to be all held in memory.
615 This is done with a new flag PKCS7_STREAM. When this flag is set
616 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
617 is done after the data is output (and digests calculated) in
621 *) Add full support for -rpath/-R, both in shared libraries and
622 applications, at least on the platforms where it's known how
626 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
627 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
628 will now compute a table of multiples of the generator that
629 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
630 faster (notably in the case of a single point multiplication,
632 [Nils Larsch, Bodo Moeller]
634 *) IPv6 support for certificate extensions. The various extensions
635 which use the IP:a.b.c.d can now take IPv6 addresses using the
636 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
640 *) Added an ENGINE that implements RSA by performing private key
641 exponentiations with the GMP library. The conversions to and from
642 GMP's mpz_t format aren't optimised nor are any montgomery forms
643 cached, and on x86 it appears OpenSSL's own performance has caught up.
644 However there are likely to be other architectures where GMP could
645 provide a boost. This ENGINE is not built in by default, but it can be
646 specified at Configure time and should be accompanied by the necessary
647 linker additions, eg;
648 ./config -DOPENSSL_USE_GMP -lgmp
651 *) "openssl engine" will not display ENGINE/DSO load failure errors when
652 testing availability of engines with "-t" - the old behaviour is
653 produced by increasing the feature's verbosity with "-tt".
656 *) ECDSA routines: under certain error conditions uninitialized BN objects
657 could be freed. Solution: make sure initialization is performed early
658 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
662 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
663 and DH_METHOD (eg. by ENGINE implementations) to override the normal
664 software implementations. For DSA and DH, parameter generation can
665 also be overriden by providing the appropriate method callbacks.
668 *) Change the "progress" mechanism used in key-generation and
669 primality testing to functions that take a new BN_GENCB pointer in
670 place of callback/argument pairs. The new API functions have "_ex"
671 postfixes and the older functions are reimplemented as wrappers for
672 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
673 declarations of the old functions to help (graceful) attempts to
674 migrate to the new functions. Also, the new key-generation API
675 functions operate on a caller-supplied key-structure and return
676 success/failure rather than returning a key or NULL - this is to
677 help make "keygen" another member function of RSA_METHOD etc.
679 Example for using the new callback interface:
681 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
685 BN_GENCB_set(&my_cb, my_callback, my_arg);
687 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
688 /* For the meaning of a, b in calls to my_callback(), see the
689 * documentation of the function that calls the callback.
690 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
691 * my_callback should return 1 if it wants BN_is_prime_ex()
692 * to continue, or 0 to stop.
697 *) Change the ZLIB compression method to be stateful, and make it
698 available to TLS with the number defined in
699 draft-ietf-tls-compression-04.txt.
702 *) Add the ASN.1 structures and functions for CertificatePair, which
703 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
705 CertificatePair ::= SEQUENCE {
706 forward [0] Certificate OPTIONAL,
707 reverse [1] Certificate OPTIONAL,
708 -- at least one of the pair shall be present -- }
710 Also implement the PEM functions to read and write certificate
711 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
713 This needed to be defined, mostly for the sake of the LDAP
714 attribute crossCertificatePair, but may prove useful elsewhere as
718 *) Make it possible to inhibit symlinking of shared libraries in
719 Makefile.shared, for Cygwin's sake.
722 *) Extend the BIGNUM API by creating a function
723 void BN_set_negative(BIGNUM *a, int neg);
724 and a macro that behave like
725 int BN_is_negative(const BIGNUM *a);
727 to avoid the need to access 'a->neg' directly in applications.
730 *) Implement fast modular reduction for pseudo-Mersenne primes
731 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
732 EC_GROUP_new_curve_GFp() will now automatically use this
734 [Nils Larsch <nla@trustcenter.de>]
736 *) Add new lock type (CRYPTO_LOCK_BN).
739 *) Change the ENGINE framework to automatically load engines
740 dynamically from specific directories unless they could be
741 found to already be built in or loaded. Move all the
742 current engines except for the cryptodev one to a new
744 The engines in engines/ are built as shared libraries if
745 the "shared" options was given to ./Configure or ./config.
746 Otherwise, they are inserted in libcrypto.a.
747 /usr/local/ssl/engines is the default directory for dynamic
748 engines, but that can be overriden at configure time through
749 the usual use of --prefix and/or --openssldir, and at run
750 time with the environment variable OPENSSL_ENGINES.
751 [Geoff Thorpe and Richard Levitte]
753 *) Add Makefile.shared, a helper makefile to build shared
754 libraries. Addapt Makefile.org.
757 *) Add version info to Win32 DLLs.
758 [Peter 'Luna' Runestig" <peter@runestig.com>]
760 *) Add new 'medium level' PKCS#12 API. Certificates and keys
761 can be added using this API to created arbitrary PKCS#12
762 files while avoiding the low level API.
764 New options to PKCS12_create(), key or cert can be NULL and
765 will then be omitted from the output file. The encryption
766 algorithm NIDs can be set to -1 for no encryption, the mac
767 iteration count can be set to 0 to omit the mac.
769 Enhance pkcs12 utility by making the -nokeys and -nocerts
770 options work when creating a PKCS#12 file. New option -nomac
771 to omit the mac, NONE can be set for an encryption algorithm.
772 New code is modified to use the enhanced PKCS12_create()
773 instead of the low level API.
776 *) Extend ASN1 encoder to support indefinite length constructed
777 encoding. This can output sequences tags and octet strings in
778 this form. Modify pk7_asn1.c to support indefinite length
779 encoding. This is experimental and needs additional code to
780 be useful, such as an ASN1 bio and some enhanced streaming
783 Extend template encode functionality so that tagging is passed
784 down to the template encoder.
787 *) Let 'openssl req' fail if an argument to '-newkey' is not
788 recognized instead of using RSA as a default.
791 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
792 As these are not official, they are not included in "ALL";
793 the "ECCdraft" ciphersuite group alias can be used to select them.
794 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
796 *) Add ECDH engine support.
797 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
799 *) Add ECDH in new directory crypto/ecdh/.
800 [Douglas Stebila (Sun Microsystems Laboratories)]
802 *) Let BN_rand_range() abort with an error after 100 iterations
803 without success (which indicates a broken PRNG).
806 *) Change BN_mod_sqrt() so that it verifies that the input value
807 is really the square of the return value. (Previously,
808 BN_mod_sqrt would show GIGO behaviour.)
811 *) Add named elliptic curves over binary fields from X9.62, SECG,
812 and WAP/WTLS; add OIDs that were still missing.
814 [Sheueling Chang Shantz and Douglas Stebila
815 (Sun Microsystems Laboratories)]
817 *) Extend the EC library for elliptic curves over binary fields
818 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
821 EC_GF2m_simple_method
825 EC_GROUP_new_curve_GF2m
826 EC_GROUP_set_curve_GF2m
827 EC_GROUP_get_curve_GF2m
828 EC_POINT_set_affine_coordinates_GF2m
829 EC_POINT_get_affine_coordinates_GF2m
830 EC_POINT_set_compressed_coordinates_GF2m
832 Point compression for binary fields is disabled by default for
833 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
836 As binary polynomials are represented as BIGNUMs, various members
837 of the EC_GROUP and EC_POINT data structures can be shared
838 between the implementations for prime fields and binary fields;
839 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
840 are essentially identical to their ..._GFp counterparts.
841 (For simplicity, the '..._GFp' prefix has been dropped from
842 various internal method names.)
844 An internal 'field_div' method (similar to 'field_mul' and
845 'field_sqr') has been added; this is used only for binary fields.
847 [Sheueling Chang Shantz and Douglas Stebila
848 (Sun Microsystems Laboratories)]
850 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
851 through methods ('mul', 'precompute_mult').
853 The generic implementations (now internally called 'ec_wNAF_mul'
854 and 'ec_wNAF_precomputed_mult') remain the default if these
855 methods are undefined.
857 [Sheueling Chang Shantz and Douglas Stebila
858 (Sun Microsystems Laboratories)]
860 *) New function EC_GROUP_get_degree, which is defined through
861 EC_METHOD. For curves over prime fields, this returns the bit
862 length of the modulus.
864 [Sheueling Chang Shantz and Douglas Stebila
865 (Sun Microsystems Laboratories)]
867 *) New functions EC_GROUP_dup, EC_POINT_dup.
868 (These simply call ..._new and ..._copy).
870 [Sheueling Chang Shantz and Douglas Stebila
871 (Sun Microsystems Laboratories)]
873 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
874 Polynomials are represented as BIGNUMs (where the sign bit is not
875 used) in the following functions [macros]:
878 BN_GF2m_sub [= BN_GF2m_add]
879 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
880 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
881 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
883 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
884 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
885 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
886 BN_GF2m_cmp [= BN_ucmp]
888 (Note that only the 'mod' functions are actually for fields GF(2^m).
889 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
891 For some functions, an the irreducible polynomial defining a
892 field can be given as an 'unsigned int[]' with strictly
893 decreasing elements giving the indices of those bits that are set;
894 i.e., p[] represents the polynomial
895 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
897 p[0] > p[1] > ... > p[k] = 0.
898 This applies to the following functions:
903 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
904 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
907 BN_GF2m_mod_solve_quad_arr
911 Conversion can be performed by the following functions:
916 bntest.c has additional tests for binary polynomial arithmetic.
918 Two implementations for BN_GF2m_mod_div() are available.
919 The default algorithm simply uses BN_GF2m_mod_inv() and
920 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
921 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
922 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
924 [Sheueling Chang Shantz and Douglas Stebila
925 (Sun Microsystems Laboratories)]
927 *) Add new error code 'ERR_R_DISABLED' that can be used when some
928 functionality is disabled at compile-time.
929 [Douglas Stebila <douglas.stebila@sun.com>]
931 *) Change default behaviour of 'openssl asn1parse' so that more
932 information is visible when viewing, e.g., a certificate:
934 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
935 mode the content of non-printable OCTET STRINGs is output in a
936 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
937 avoid the appearance of a printable string.
938 [Nils Larsch <nla@trustcenter.de>]
940 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
942 EC_GROUP_set_asn1_flag()
943 EC_GROUP_get_asn1_flag()
944 EC_GROUP_set_point_conversion_form()
945 EC_GROUP_get_point_conversion_form()
946 These control ASN1 encoding details:
947 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
948 has been set to OPENSSL_EC_NAMED_CURVE.
949 - Points are encoded in uncompressed form by default; options for
950 asn1_for are as for point2oct, namely
951 POINT_CONVERSION_COMPRESSED
952 POINT_CONVERSION_UNCOMPRESSED
953 POINT_CONVERSION_HYBRID
955 Also add 'seed' and 'seed_len' members to EC_GROUP with access
959 EC_GROUP_get_seed_len()
960 This is used only for ASN1 purposes (so far).
961 [Nils Larsch <nla@trustcenter.de>]
963 *) Add 'field_type' member to EC_METHOD, which holds the NID
964 of the appropriate field type OID. The new function
965 EC_METHOD_get_field_type() returns this value.
966 [Nils Larsch <nla@trustcenter.de>]
973 providing useful interfaces to EC_POINT_point2oct() and
974 EC_POINT_oct2point().
975 [Nils Larsch <nla@trustcenter.de>]
977 *) Change internals of the EC library so that the functions
978 EC_GROUP_set_generator()
979 EC_GROUP_get_generator()
981 EC_GROUP_get_cofactor()
982 are implemented directly in crypto/ec/ec_lib.c and not dispatched
983 to methods, which would lead to unnecessary code duplication when
984 adding different types of curves.
985 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
987 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
988 arithmetic, and such that modified wNAFs are generated
989 (which avoid length expansion in many cases).
992 *) Add a function EC_GROUP_check_discriminant() (defined via
993 EC_METHOD) that verifies that the curve discriminant is non-zero.
995 Add a function EC_GROUP_check() that makes some sanity tests
996 on a EC_GROUP, its generator and order. This includes
997 EC_GROUP_check_discriminant().
998 [Nils Larsch <nla@trustcenter.de>]
1000 *) Add ECDSA in new directory crypto/ecdsa/.
1002 Add applications 'openssl ecparam' and 'openssl ecdsa'
1003 (these are based on 'openssl dsaparam' and 'openssl dsa').
1005 ECDSA support is also included in various other files across the
1006 library. Most notably,
1007 - 'openssl req' now has a '-newkey ecdsa:file' option;
1008 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1009 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1010 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1011 them suitable for ECDSA where domain parameters must be
1012 extracted before the specific public key;
1013 - ECDSA engine support has been added.
1014 [Nils Larsch <nla@trustcenter.de>]
1016 *) Include some named elliptic curves, and add OIDs from X9.62,
1017 SECG, and WAP/WTLS. Each curve can be obtained from the new
1019 EC_GROUP_new_by_curve_name(),
1020 and the list of available named curves can be obtained with
1021 EC_get_builtin_curves().
1022 Also add a 'curve_name' member to EC_GROUP objects, which can be
1024 EC_GROUP_set_curve_name()
1025 EC_GROUP_get_curve_name()
1026 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1028 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1029 was actually never needed) and in BN_mul(). The removal in BN_mul()
1030 required a small change in bn_mul_part_recursive() and the addition
1031 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1032 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1033 bn_sub_words() and bn_add_words() except they take arrays with
1037 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1039 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1040 The value now differs depending on if you build for FIPS or not.
1041 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1042 safely run with a non-FIPSed libcrypto, as it may crash because of
1043 the difference induced by this change.
1046 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1048 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1049 (part of SSL_OP_ALL). This option used to disable the
1050 countermeasure against man-in-the-middle protocol-version
1051 rollback in the SSL 2.0 server implementation, which is a bad
1052 idea. (CVE-2005-2969)
1054 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1055 for Information Security, National Institute of Advanced Industrial
1056 Science and Technology [AIST], Japan)]
1058 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1059 mainly for FIPS compliance and not fully integrated at this stage.
1062 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1063 the exponentiation using a fixed-length exponent. (Otherwise,
1064 the information leaked through timing could expose the secret key
1065 after many signatures; cf. Bleichenbacher's attack on DSA with
1069 *) Make a new fixed-window mod_exp implementation the default for
1070 RSA, DSA, and DH private-key operations so that the sequence of
1071 squares and multiplies and the memory access pattern are
1072 independent of the particular secret key. This will mitigate
1073 cache-timing and potential related attacks.
1075 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1076 and this is automatically used by BN_mod_exp_mont() if the new flag
1077 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1078 will use this BN flag for private exponents unless the flag
1079 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1080 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1082 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1084 *) Change the client implementation for SSLv23_method() and
1085 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1086 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1087 (Previously, the SSL 2.0 backwards compatible Client Hello
1088 message format would be used even with SSL_OP_NO_SSLv2.)
1091 *) Add support for smime-type MIME parameter in S/MIME messages which some
1095 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1096 a threadsafe manner. Modify rsa code to use new function and add calls
1097 to dsa and dh code (which had race conditions before).
1100 *) Include the fixed error library code in the C error file definitions
1101 instead of fixing them up at runtime. This keeps the error code
1102 structures constant.
1105 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1107 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1110 *) Fixes for newer kerberos headers. NB: the casts are needed because
1111 the 'length' field is signed on one version and unsigned on another
1112 with no (?) obvious way to tell the difference, without these VC++
1113 complains. Also the "definition" of FAR (blank) is no longer included
1114 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1115 some needed definitions.
1118 *) Undo Cygwin change.
1121 *) Added support for proxy certificates according to RFC 3820.
1122 Because they may be a security thread to unaware applications,
1123 they must be explicitely allowed in run-time. See
1124 docs/HOWTO/proxy_certificates.txt for further information.
1127 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1129 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1130 server and client random values. Previously
1131 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1132 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1134 This change has negligible security impact because:
1136 1. Server and client random values still have 24 bytes of pseudo random
1139 2. Server and client random values are sent in the clear in the initial
1142 3. The master secret is derived using the premaster secret (48 bytes in
1143 size for static RSA ciphersuites) as well as client server and random
1146 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1149 [Stephen Henson, reported by UK NISCC]
1151 *) Use Windows randomness collection on Cygwin.
1154 *) Fix hang in EGD/PRNGD query when communication socket is closed
1155 prematurely by EGD/PRNGD.
1156 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1158 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1161 *) Back-port of selected performance improvements from development
1162 branch, as well as improved support for PowerPC platforms.
1165 *) Add lots of checks for memory allocation failure, error codes to indicate
1166 failure and freeing up memory if a failure occurs.
1167 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1169 *) Add new -passin argument to dgst.
1172 *) Perform some character comparisons of different types in X509_NAME_cmp:
1173 this is needed for some certificates that reencode DNs into UTF8Strings
1174 (in violation of RFC3280) and can't or wont issue name rollover
1178 *) Make an explicit check during certificate validation to see that
1179 the CA setting in each certificate on the chain is correct. As a
1180 side effect always do the following basic checks on extensions,
1181 not just when there's an associated purpose to the check:
1183 - if there is an unhandled critical extension (unless the user
1184 has chosen to ignore this fault)
1185 - if the path length has been exceeded (if one is set at all)
1186 - that certain extensions fit the associated purpose (if one has
1190 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1192 *) Avoid a race condition when CRLs are checked in a multi threaded
1193 environment. This would happen due to the reordering of the revoked
1194 entries during signature checking and serial number lookup. Now the
1195 encoding is cached and the serial number sort performed under a lock.
1196 Add new STACK function sk_is_sorted().
1199 *) Add Delta CRL to the extension code.
1202 *) Various fixes to s3_pkt.c so alerts are sent properly.
1203 [David Holmes <d.holmes@f5.com>]
1205 *) Reduce the chances of duplicate issuer name and serial numbers (in
1206 violation of RFC3280) using the OpenSSL certificate creation utilities.
1207 This is done by creating a random 64 bit value for the initial serial
1208 number when a serial number file is created or when a self signed
1209 certificate is created using 'openssl req -x509'. The initial serial
1210 number file is created using 'openssl x509 -next_serial' in CA.pl
1211 rather than being initialized to 1.
1214 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1216 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1217 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1218 [Joe Orton, Steve Henson]
1220 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1222 [Joe Orton, Steve Henson]
1224 *) Make it possible to have multiple active certificates with the same
1225 subject in the CA index file. This is done only if the keyword
1226 'unique_subject' is set to 'no' in the main CA section (default
1227 if 'CA_default') of the configuration file. The value is saved
1228 with the database itself in a separate index attribute file,
1229 named like the index file with '.attr' appended to the name.
1232 *) X509 verify fixes. Disable broken certificate workarounds when
1233 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1234 keyUsage extension present. Don't accept CRLs with unhandled critical
1235 extensions: since verify currently doesn't process CRL extensions this
1236 rejects a CRL with *any* critical extensions. Add new verify error codes
1240 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1241 A clarification of RFC2560 will require the use of OCTET STRINGs and
1242 some implementations cannot handle the current raw format. Since OpenSSL
1243 copies and compares OCSP nonces as opaque blobs without any attempt at
1244 parsing them this should not create any compatibility issues.
1247 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1248 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1249 this HMAC (and other) operations are several times slower than OpenSSL
1253 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1254 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1256 *) Use the correct content when signing type "other".
1259 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1261 *) Fix various bugs revealed by running the NISCC test suite:
1263 Stop out of bounds reads in the ASN1 code when presented with
1264 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1266 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1268 If verify callback ignores invalid public key errors don't try to check
1269 certificate signature with the NULL public key.
1273 *) New -ignore_err option in ocsp application to stop the server
1274 exiting on the first error in a request.
1277 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1278 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1282 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1283 extra data after the compression methods not only for TLS 1.0
1284 but also for SSL 3.0 (as required by the specification).
1285 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1287 *) Change X509_certificate_type() to mark the key as exported/exportable
1288 when it's 512 *bits* long, not 512 bytes.
1291 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1292 blocks during encryption.
1295 *) Various fixes to base64 BIO and non blocking I/O. On write
1296 flushes were not handled properly if the BIO retried. On read
1297 data was not being buffered properly and had various logic bugs.
1298 This also affects blocking I/O when the data being decoded is a
1302 *) Various S/MIME bugfixes and compatibility changes:
1303 output correct application/pkcs7 MIME type if
1304 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1305 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1306 of files as .eml work). Correctly handle very long lines in MIME
1310 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1312 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1313 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1314 a protocol version number mismatch like a decryption error
1315 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1318 *) Turn on RSA blinding by default in the default implementation
1319 to avoid a timing attack. Applications that don't want it can call
1320 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1321 They would be ill-advised to do so in most cases.
1322 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1324 *) Change RSA blinding code so that it works when the PRNG is not
1325 seeded (in this case, the secret RSA exponent is abused as
1326 an unpredictable seed -- if it is not unpredictable, there
1327 is no point in blinding anyway). Make RSA blinding thread-safe
1328 by remembering the creator's thread ID in rsa->blinding and
1329 having all other threads use local one-time blinding factors
1330 (this requires more computation than sharing rsa->blinding, but
1331 avoids excessive locking; and if an RSA object is not shared
1332 between threads, blinding will still be very fast).
1335 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1336 ENGINE as defaults for all supported algorithms irrespective of
1337 the 'flags' parameter. 'flags' is now honoured, so applications
1338 should make sure they are passing it correctly.
1341 *) Target "mingw" now allows native Windows code to be generated in
1342 the Cygwin environment as well as with the MinGW compiler.
1345 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1347 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1348 via timing by performing a MAC computation even if incorrrect
1349 block cipher padding has been found. This is a countermeasure
1350 against active attacks where the attacker has to distinguish
1351 between bad padding and a MAC verification error. (CVE-2003-0078)
1353 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1354 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1355 Martin Vuagnoux (EPFL, Ilion)]
1357 *) Make the no-err option work as intended. The intention with no-err
1358 is not to have the whole error stack handling routines removed from
1359 libcrypto, it's only intended to remove all the function name and
1360 reason texts, thereby removing some of the footprint that may not
1361 be interesting if those errors aren't displayed anyway.
1363 NOTE: it's still possible for any application or module to have it's
1364 own set of error texts inserted. The routines are there, just not
1365 used by default when no-err is given.
1368 *) Add support for FreeBSD on IA64.
1369 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1371 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1372 Kerberos function mit_des_cbc_cksum(). Before this change,
1373 the value returned by DES_cbc_cksum() was like the one from
1374 mit_des_cbc_cksum(), except the bytes were swapped.
1375 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1377 *) Allow an application to disable the automatic SSL chain building.
1378 Before this a rather primitive chain build was always performed in
1379 ssl3_output_cert_chain(): an application had no way to send the
1380 correct chain if the automatic operation produced an incorrect result.
1382 Now the chain builder is disabled if either:
1384 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1386 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1388 The reasoning behind this is that an application would not want the
1389 auto chain building to take place if extra chain certificates are
1390 present and it might also want a means of sending no additional
1391 certificates (for example the chain has two certificates and the
1395 *) Add the possibility to build without the ENGINE framework.
1396 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1398 *) Under Win32 gmtime() can return NULL: check return value in
1399 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1402 *) DSA routines: under certain error conditions uninitialized BN objects
1403 could be freed. Solution: make sure initialization is performed early
1404 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1405 Nils Larsch <nla@trustcenter.de> via PR#459)
1408 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1409 checked on reconnect on the client side, therefore session resumption
1410 could still fail with a "ssl session id is different" error. This
1411 behaviour is masked when SSL_OP_ALL is used due to
1412 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1413 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1414 followup to PR #377.
1417 *) IA-32 assembler support enhancements: unified ELF targets, support
1418 for SCO/Caldera platforms, fix for Cygwin shared build.
1421 *) Add support for FreeBSD on sparc64. As a consequence, support for
1422 FreeBSD on non-x86 processors is separate from x86 processors on
1423 the config script, much like the NetBSD support.
1424 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1426 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1428 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1431 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1432 code (06) was taken as the first octet of the session ID and the last
1433 octet was ignored consequently. As a result SSLv2 client side session
1434 caching could not have worked due to the session ID mismatch between
1436 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1440 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1441 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1445 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1446 seems that in spite of existing for more than a year, many application
1447 author have done nothing to provide the necessary callbacks, which
1448 means that this particular engine will not work properly anywhere.
1449 This is a very unfortunate situation which forces us, in the name
1450 of usability, to give the hw_ncipher.c a static lock, which is part
1452 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1453 appear in 0.9.8 or later. We EXPECT application authors to have
1454 dealt properly with this when 0.9.8 is released (unless we actually
1455 make such changes in the libcrypto locking code that changes will
1456 have to be made anyway).
1459 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1460 octets have been read, EOF or an error occurs. Without this change
1461 some truncated ASN1 structures will not produce an error.
1464 *) Disable Heimdal support, since it hasn't been fully implemented.
1465 Still give the possibility to force the use of Heimdal, but with
1466 warnings and a request that patches get sent to openssl-dev.
1469 *) Add the VC-CE target, introduce the WINCE sysname, and add
1470 INSTALL.WCE and appropriate conditionals to make it build.
1471 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1473 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1474 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1475 edit numbers of the version.
1476 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1478 *) Introduce safe string copy and catenation functions
1479 (BUF_strlcpy() and BUF_strlcat()).
1480 [Ben Laurie (CHATS) and Richard Levitte]
1482 *) Avoid using fixed-size buffers for one-line DNs.
1483 [Ben Laurie (CHATS)]
1485 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1486 resizing buffers containing secrets, and use where appropriate.
1487 [Ben Laurie (CHATS)]
1489 *) Avoid using fixed size buffers for configuration file location.
1490 [Ben Laurie (CHATS)]
1492 *) Avoid filename truncation for various CA files.
1493 [Ben Laurie (CHATS)]
1495 *) Use sizeof in preference to magic numbers.
1496 [Ben Laurie (CHATS)]
1498 *) Avoid filename truncation in cert requests.
1499 [Ben Laurie (CHATS)]
1501 *) Add assertions to check for (supposedly impossible) buffer
1503 [Ben Laurie (CHATS)]
1505 *) Don't cache truncated DNS entries in the local cache (this could
1506 potentially lead to a spoofing attack).
1507 [Ben Laurie (CHATS)]
1509 *) Fix various buffers to be large enough for hex/decimal
1510 representations in a platform independent manner.
1511 [Ben Laurie (CHATS)]
1513 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1514 resizing buffers containing secrets, and use where appropriate.
1515 [Ben Laurie (CHATS)]
1517 *) Add BIO_indent() to avoid much slightly worrying code to do
1519 [Ben Laurie (CHATS)]
1521 *) Convert sprintf()/BIO_puts() to BIO_printf().
1522 [Ben Laurie (CHATS)]
1524 *) buffer_gets() could terminate with the buffer only half
1526 [Ben Laurie (CHATS)]
1528 *) Add assertions to prevent user-supplied crypto functions from
1529 overflowing internal buffers by having large block sizes, etc.
1530 [Ben Laurie (CHATS)]
1532 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1534 [Ben Laurie (CHATS)]
1536 *) Eliminate unused copy of key in RC4.
1537 [Ben Laurie (CHATS)]
1539 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1540 [Ben Laurie (CHATS)]
1542 *) Fix off-by-one error in EGD path.
1543 [Ben Laurie (CHATS)]
1545 *) If RANDFILE path is too long, ignore instead of truncating.
1546 [Ben Laurie (CHATS)]
1548 *) Eliminate unused and incorrectly sized X.509 structure
1550 [Ben Laurie (CHATS)]
1552 *) Eliminate unused and dangerous function knumber().
1553 [Ben Laurie (CHATS)]
1555 *) Eliminate unused and dangerous structure, KSSL_ERR.
1556 [Ben Laurie (CHATS)]
1558 *) Protect against overlong session ID context length in an encoded
1559 session object. Since these are local, this does not appear to be
1561 [Ben Laurie (CHATS)]
1563 *) Change from security patch (see 0.9.6e below) that did not affect
1564 the 0.9.6 release series:
1566 Remote buffer overflow in SSL3 protocol - an attacker could
1567 supply an oversized master key in Kerberos-enabled versions.
1569 [Ben Laurie (CHATS)]
1571 *) Change the SSL kerb5 codes to match RFC 2712.
1574 *) Make -nameopt work fully for req and add -reqopt switch.
1575 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1577 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1578 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1580 *) Make sure tests can be performed even if the corresponding algorithms
1581 have been removed entirely. This was also the last step to make
1582 OpenSSL compilable with DJGPP under all reasonable conditions.
1583 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1585 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1586 to allow version independent disabling of normally unselected ciphers,
1587 which may be activated as a side-effect of selecting a single cipher.
1589 (E.g., cipher list string "RSA" enables ciphersuites that are left
1590 out of "ALL" because they do not provide symmetric encryption.
1591 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1592 [Lutz Jaenicke, Bodo Moeller]
1594 *) Add appropriate support for separate platform-dependent build
1595 directories. The recommended way to make a platform-dependent
1596 build directory is the following (tested on Linux), maybe with
1599 # Place yourself outside of the OpenSSL source tree. In
1600 # this example, the environment variable OPENSSL_SOURCE
1601 # is assumed to contain the absolute OpenSSL source directory.
1602 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1603 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1604 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1605 mkdir -p `dirname $F`
1606 ln -s $OPENSSL_SOURCE/$F $F
1609 To be absolutely sure not to disturb the source tree, a "make clean"
1610 is a good thing. If it isn't successfull, don't worry about it,
1611 it probably means the source directory is very clean.
1614 *) Make sure any ENGINE control commands make local copies of string
1615 pointers passed to them whenever necessary. Otherwise it is possible
1616 the caller may have overwritten (or deallocated) the original string
1617 data when a later ENGINE operation tries to use the stored values.
1618 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1620 *) Improve diagnostics in file reading and command-line digests.
1621 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1623 *) Add AES modes CFB and OFB to the object database. Correct an
1624 error in AES-CFB decryption.
1627 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1628 allows existing EVP_CIPHER_CTX structures to be reused after
1629 calling EVP_*Final(). This behaviour is used by encryption
1630 BIOs and some applications. This has the side effect that
1631 applications must explicitly clean up cipher contexts with
1632 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1635 *) Check the values of dna and dnb in bn_mul_recursive before calling
1636 bn_mul_comba (a non zero value means the a or b arrays do not contain
1637 n2 elements) and fallback to bn_mul_normal if either is not zero.
1640 *) Fix escaping of non-ASCII characters when using the -subj option
1641 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1644 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1645 form for "surname", serialNumber has no short form.
1646 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1647 therefore remove "mail" short name for "internet 7".
1648 The OID for unique identifiers in X509 certificates is
1649 x500UniqueIdentifier, not uniqueIdentifier.
1650 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1653 *) Add an "init" command to the ENGINE config module and auto initialize
1654 ENGINEs. Without any "init" command the ENGINE will be initialized
1655 after all ctrl commands have been executed on it. If init=1 the
1656 ENGINE is initailized at that point (ctrls before that point are run
1657 on the uninitialized ENGINE and after on the initialized one). If
1658 init=0 then the ENGINE will not be iniatialized at all.
1661 *) Fix the 'app_verify_callback' interface so that the user-defined
1662 argument is actually passed to the callback: In the
1663 SSL_CTX_set_cert_verify_callback() prototype, the callback
1664 declaration has been changed from
1667 int (*cb)(X509_STORE_CTX *,void *);
1668 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1669 i=s->ctx->app_verify_callback(&ctx)
1670 has been changed into
1671 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1673 To update applications using SSL_CTX_set_cert_verify_callback(),
1674 a dummy argument can be added to their callback functions.
1675 [D. K. Smetters <smetters@parc.xerox.com>]
1677 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1678 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1680 *) Add and OPENSSL_LOAD_CONF define which will cause
1681 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1682 This allows older applications to transparently support certain
1683 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1684 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1685 load the config file and OPENSSL_add_all_algorithms_conf() which will
1686 always load it have also been added.
1689 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1690 Adjust NIDs and EVP layer.
1691 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1693 *) Config modules support in openssl utility.
1695 Most commands now load modules from the config file,
1696 though in a few (such as version) this isn't done
1697 because it couldn't be used for anything.
1699 In the case of ca and req the config file used is
1700 the same as the utility itself: that is the -config
1701 command line option can be used to specify an
1705 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1706 use "openssl_conf" if filename is NULL use default openssl config file.
1709 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1710 config section name. Add a new flag to tolerate a missing config file
1711 and move code to CONF_modules_load_file().
1714 *) Support for crypto accelerator cards from Accelerated Encryption
1715 Processing, www.aep.ie. (Use engine 'aep')
1716 The support was copied from 0.9.6c [engine] and adapted/corrected
1717 to work with the new engine framework.
1718 [AEP Inc. and Richard Levitte]
1720 *) Support for SureWare crypto accelerator cards from Baltimore
1721 Technologies. (Use engine 'sureware')
1722 The support was copied from 0.9.6c [engine] and adapted
1723 to work with the new engine framework.
1726 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1727 make the newer ENGINE framework commands for the CHIL engine work.
1728 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1730 *) Make it possible to produce shared libraries on ReliantUNIX.
1731 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1733 *) Add the configuration target debug-linux-ppro.
1734 Make 'openssl rsa' use the general key loading routines
1735 implemented in apps.c, and make those routines able to
1736 handle the key format FORMAT_NETSCAPE and the variant
1738 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1740 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1741 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1743 *) Add -keyform to rsautl, and document -engine.
1744 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1746 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1747 BIO_R_NO_SUCH_FILE error code rather than the generic
1748 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1751 *) Add new functions
1753 ERR_peek_last_error_line
1754 ERR_peek_last_error_line_data.
1755 These are similar to
1758 ERR_peek_error_line_data,
1759 but report on the latest error recorded rather than the first one
1760 still in the error queue.
1761 [Ben Laurie, Bodo Moeller]
1763 *) default_algorithms option in ENGINE config module. This allows things
1765 default_algorithms = ALL
1766 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1769 *) Prelminary ENGINE config module.
1772 *) New experimental application configuration code.
1775 *) Change the AES code to follow the same name structure as all other
1776 symmetric ciphers, and behave the same way. Move everything to
1777 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1778 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1780 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1781 [Ben Laurie and Theo de Raadt]
1783 *) Add option to output public keys in req command.
1784 [Massimiliano Pala madwolf@openca.org]
1786 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1787 (up to about 10% better than before for P-192 and P-224).
1790 *) New functions/macros
1792 SSL_CTX_set_msg_callback(ctx, cb)
1793 SSL_CTX_set_msg_callback_arg(ctx, arg)
1794 SSL_set_msg_callback(ssl, cb)
1795 SSL_set_msg_callback_arg(ssl, arg)
1797 to request calling a callback function
1799 void cb(int write_p, int version, int content_type,
1800 const void *buf, size_t len, SSL *ssl, void *arg)
1802 whenever a protocol message has been completely received
1803 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1804 protocol version according to which the SSL library interprets
1805 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1806 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1807 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1808 specification (change_cipher_spec(20), alert(21), handshake(22)).
1809 'buf' and 'len' point to the actual message, 'ssl' to the
1810 SSL object, and 'arg' is the application-defined value set by
1811 SSL[_CTX]_set_msg_callback_arg().
1813 'openssl s_client' and 'openssl s_server' have new '-msg' options
1814 to enable a callback that displays all protocol messages.
1817 *) Change the shared library support so shared libraries are built as
1818 soon as the corresponding static library is finished, and thereby get
1819 openssl and the test programs linked against the shared library.
1820 This still only happens when the keyword "shard" has been given to
1821 the configuration scripts.
1823 NOTE: shared library support is still an experimental thing, and
1824 backward binary compatibility is still not guaranteed.
1825 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1827 *) Add support for Subject Information Access extension.
1828 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1830 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1831 additional bytes when new memory had to be allocated, not just
1832 when reusing an existing buffer.
1835 *) New command line and configuration option 'utf8' for the req command.
1836 This allows field values to be specified as UTF8 strings.
1839 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1840 runs for the former and machine-readable output for the latter.
1843 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1844 of the e-mail address in the DN (i.e., it will go into a certificate
1845 extension only). The new configuration file option 'email_in_dn = no'
1846 has the same effect.
1847 [Massimiliano Pala madwolf@openca.org]
1849 *) Change all functions with names starting with des_ to be starting
1850 with DES_ instead. Add wrappers that are compatible with libdes,
1851 but are named _ossl_old_des_*. Finally, add macros that map the
1852 des_* symbols to the corresponding _ossl_old_des_* if libdes
1853 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1854 desired, the des_* symbols will be mapped to DES_*, with one
1857 Since we provide two compatibility mappings, the user needs to
1858 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1859 compatibility is desired. The default (i.e., when that macro
1860 isn't defined) is OpenSSL 0.9.6c compatibility.
1862 There are also macros that enable and disable the support of old
1863 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1864 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1865 are defined, the default will apply: to support the old des routines.
1867 In either case, one must include openssl/des.h to get the correct
1868 definitions. Do not try to just include openssl/des_old.h, that
1871 NOTE: This is a major break of an old API into a new one. Software
1872 authors are encouraged to switch to the DES_ style functions. Some
1873 time in the future, des_old.h and the libdes compatibility functions
1874 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1875 default), and then completely removed.
1878 *) Test for certificates which contain unsupported critical extensions.
1879 If such a certificate is found during a verify operation it is
1880 rejected by default: this behaviour can be overridden by either
1881 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1882 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1883 X509_supported_extension() has also been added which returns 1 if a
1884 particular extension is supported.
1887 *) Modify the behaviour of EVP cipher functions in similar way to digests
1888 to retain compatibility with existing code.
1891 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1892 compatibility with existing code. In particular the 'ctx' parameter does
1893 not have to be to be initialized before the call to EVP_DigestInit() and
1894 it is tidied up after a call to EVP_DigestFinal(). New function
1895 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1896 EVP_MD_CTX_copy() changed to not require the destination to be
1897 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1898 requires the destination to be valid.
1900 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1901 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1904 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1905 so that complete 'Handshake' protocol structures are kept in memory
1906 instead of overwriting 'msg_type' and 'length' with 'body' data.
1909 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1910 [Massimo Santin via Richard Levitte]
1912 *) Major restructuring to the underlying ENGINE code. This includes
1913 reduction of linker bloat, separation of pure "ENGINE" manipulation
1914 (initialisation, etc) from functionality dealing with implementations
1915 of specific crypto iterfaces. This change also introduces integrated
1916 support for symmetric ciphers and digest implementations - so ENGINEs
1917 can now accelerate these by providing EVP_CIPHER and EVP_MD
1918 implementations of their own. This is detailed in crypto/engine/README
1919 as it couldn't be adequately described here. However, there are a few
1920 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1921 were changed in the original introduction of ENGINE code have now
1922 reverted back - the hooking from this code to ENGINE is now a good
1923 deal more passive and at run-time, operations deal directly with
1924 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1925 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1926 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1927 they were not being used by the framework as there is no concept of a
1928 BIGNUM_METHOD and they could not be generalised to the new
1929 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1930 ENGINE_cpy() has been removed as it cannot be consistently defined in
1934 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1937 *) Change mkdef.pl to sort symbols that get the same entry number,
1938 and make sure the automatically generated functions ERR_load_*
1939 become part of libeay.num as well.
1942 *) New function SSL_renegotiate_pending(). This returns true once
1943 renegotiation has been requested (either SSL_renegotiate() call
1944 or HelloRequest/ClientHello receveived from the peer) and becomes
1945 false once a handshake has been completed.
1946 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1947 sends a HelloRequest, but does not ensure that a handshake takes
1948 place. SSL_renegotiate_pending() is useful for checking if the
1949 client has followed the request.)
1952 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1953 By default, clients may request session resumption even during
1954 renegotiation (if session ID contexts permit); with this option,
1955 session resumption is possible only in the first handshake.
1957 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1958 more bits available for options that should not be part of
1959 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1962 *) Add some demos for certificate and certificate request creation.
1965 *) Make maximum certificate chain size accepted from the peer application
1966 settable (SSL*_get/set_max_cert_list()), as proposed by
1967 "Douglas E. Engert" <deengert@anl.gov>.
1970 *) Add support for shared libraries for Unixware-7
1971 (Boyd Lynn Gerber <gerberb@zenez.com>).
1974 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1975 be done prior to destruction. Use this to unload error strings from
1976 ENGINEs that load their own error strings. NB: This adds two new API
1977 functions to "get" and "set" this destroy handler in an ENGINE.
1980 *) Alter all existing ENGINE implementations (except "openssl" and
1981 "openbsd") to dynamically instantiate their own error strings. This
1982 makes them more flexible to be built both as statically-linked ENGINEs
1983 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1984 Also, add stub code to each that makes building them as self-contained
1985 shared-libraries easier (see README.ENGINE).
1988 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1989 implementations into applications that are completely implemented in
1990 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1991 commands that can be used to configure what shared-library to load and
1992 to control aspects of the way it is handled. Also, made an update to
1993 the README.ENGINE file that brings its information up-to-date and
1994 provides some information and instructions on the "dynamic" ENGINE
1995 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1998 *) Make it possible to unload ranges of ERR strings with a new
1999 "ERR_unload_strings" function.
2002 *) Add a copy() function to EVP_MD.
2005 *) Make EVP_MD routines take a context pointer instead of just the
2006 md_data void pointer.
2009 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2010 that the digest can only process a single chunk of data
2011 (typically because it is provided by a piece of
2012 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2013 is only going to provide a single chunk of data, and hence the
2014 framework needn't accumulate the data for oneshot drivers.
2017 *) As with "ERR", make it possible to replace the underlying "ex_data"
2018 functions. This change also alters the storage and management of global
2019 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2020 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2021 index counters. The API functions that use this state have been changed
2022 to take a "class_index" rather than pointers to the class's local STACK
2023 and counter, and there is now an API function to dynamically create new
2024 classes. This centralisation allows us to (a) plug a lot of the
2025 thread-safety problems that existed, and (b) makes it possible to clean
2026 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2027 such data would previously have always leaked in application code and
2028 workarounds were in place to make the memory debugging turn a blind eye
2029 to it. Application code that doesn't use this new function will still
2030 leak as before, but their memory debugging output will announce it now
2031 rather than letting it slide.
2033 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2034 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2035 has a return value to indicate success or failure.
2038 *) Make it possible to replace the underlying "ERR" functions such that the
2039 global state (2 LHASH tables and 2 locks) is only used by the "default"
2040 implementation. This change also adds two functions to "get" and "set"
2041 the implementation prior to it being automatically set the first time
2042 any other ERR function takes place. Ie. an application can call "get",
2043 pass the return value to a module it has just loaded, and that module
2044 can call its own "set" function using that value. This means the
2045 module's "ERR" operations will use (and modify) the error state in the
2046 application and not in its own statically linked copy of OpenSSL code.
2049 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2050 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2051 the operation, and provides a more encapsulated way for external code
2052 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2053 to use these functions rather than manually incrementing the counts.
2055 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2058 *) Add EVP test program.
2061 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2064 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2065 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2066 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2067 These allow a CRL to be built without having to access X509_CRL fields
2068 directly. Modify 'ca' application to use new functions.
2071 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2072 bug workarounds. Rollback attack detection is a security feature.
2073 The problem will only arise on OpenSSL servers when TLSv1 is not
2074 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2075 Software authors not wanting to support TLSv1 will have special reasons
2076 for their choice and can explicitly enable this option.
2077 [Bodo Moeller, Lutz Jaenicke]
2079 *) Rationalise EVP so it can be extended: don't include a union of
2080 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2081 (similar to those existing for EVP_CIPHER_CTX).
2086 EVP_MD_CTX_init(&md); /* new function call */
2087 EVP_DigestInit(&md, EVP_sha1());
2088 EVP_DigestUpdate(&md, in, len);
2089 EVP_DigestFinal(&md, out, NULL);
2090 EVP_MD_CTX_cleanup(&md); /* new function call */
2094 *) Make DES key schedule conform to the usual scheme, as well as
2095 correcting its structure. This means that calls to DES functions
2096 now have to pass a pointer to a des_key_schedule instead of a
2097 plain des_key_schedule (which was actually always a pointer
2100 des_key_schedule ks;
2102 des_set_key_checked(..., &ks);
2103 des_ncbc_encrypt(..., &ks, ...);
2105 (Note that a later change renames 'des_...' into 'DES_...'.)
2108 *) Initial reduction of linker bloat: the use of some functions, such as
2109 PEM causes large amounts of unused functions to be linked in due to
2110 poor organisation. For example pem_all.c contains every PEM function
2111 which has a knock on effect of linking in large amounts of (unused)
2112 ASN1 code. Grouping together similar functions and splitting unrelated
2113 functions prevents this.
2116 *) Cleanup of EVP macros.
2119 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2120 correct _ecb suffix.
2123 *) Add initial OCSP responder support to ocsp application. The
2124 revocation information is handled using the text based index
2125 use by the ca application. The responder can either handle
2126 requests generated internally, supplied in files (for example
2127 via a CGI script) or using an internal minimal server.
2130 *) Add configuration choices to get zlib compression for TLS.
2133 *) Changes to Kerberos SSL for RFC 2712 compliance:
2134 1. Implemented real KerberosWrapper, instead of just using
2135 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2136 2. Implemented optional authenticator field of KerberosWrapper.
2138 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2139 and authenticator structs; see crypto/krb5/.
2141 Generalized Kerberos calls to support multiple Kerberos libraries.
2142 [Vern Staats <staatsvr@asc.hpc.mil>,
2143 Jeffrey Altman <jaltman@columbia.edu>
2144 via Richard Levitte]
2146 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2147 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2148 values for each of the key sizes rather than having just
2149 parameters (and 'speed' generating keys each time).
2152 *) Speed up EVP routines.
2155 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2156 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2157 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2158 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2160 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2161 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2162 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2165 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2167 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2170 *) Added the OS2-EMX target.
2171 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2173 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2174 to support NCONF routines in extension code. New function CONF_set_nconf()
2175 to allow functions which take an NCONF to also handle the old LHASH
2176 structure: this means that the old CONF compatible routines can be
2177 retained (in particular wrt extensions) without having to duplicate the
2178 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2181 *) Enhance the general user interface with mechanisms for inner control
2182 and with possibilities to have yes/no kind of prompts.
2185 *) Change all calls to low level digest routines in the library and
2186 applications to use EVP. Add missing calls to HMAC_cleanup() and
2187 don't assume HMAC_CTX can be copied using memcpy().
2188 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2190 *) Add the possibility to control engines through control names but with
2191 arbitrary arguments instead of just a string.
2192 Change the key loaders to take a UI_METHOD instead of a callback
2193 function pointer. NOTE: this breaks binary compatibility with earlier
2194 versions of OpenSSL [engine].
2195 Adapt the nCipher code for these new conditions and add a card insertion
2199 *) Enhance the general user interface with mechanisms to better support
2200 dialog box interfaces, application-defined prompts, the possibility
2201 to use defaults (for example default passwords from somewhere else)
2202 and interrupts/cancellations.
2205 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2206 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2209 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2210 tidy up some unnecessarily weird code in 'sk_new()').
2211 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2213 *) Change the key loading routines for ENGINEs to use the same kind
2214 callback (pem_password_cb) as all other routines that need this
2218 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2219 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2220 than this minimum value is recommended.
2223 *) New random seeder for OpenVMS, using the system process statistics
2224 that are easily reachable.
2227 *) Windows apparently can't transparently handle global
2228 variables defined in DLLs. Initialisations such as:
2230 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2232 wont compile. This is used by the any applications that need to
2233 declare their own ASN1 modules. This was fixed by adding the option
2234 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2235 needed for static libraries under Win32.
2238 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2239 setting of purpose and trust fields. New X509_STORE trust and
2240 purpose functions and tidy up setting in other SSL functions.
2243 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2244 structure. These are inherited by X509_STORE_CTX when it is
2245 initialised. This allows various defaults to be set in the
2246 X509_STORE structure (such as flags for CRL checking and custom
2247 purpose or trust settings) for functions which only use X509_STORE_CTX
2248 internally such as S/MIME.
2250 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2251 trust settings if they are not set in X509_STORE. This allows X509_STORE
2252 purposes and trust (in S/MIME for example) to override any set by default.
2254 Add command line options for CRL checking to smime, s_client and s_server
2258 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2259 are set then the CRL is looked up in the X509_STORE structure and
2260 its validity and signature checked, then if the certificate is found
2261 in the CRL the verify fails with a revoked error.
2263 Various new CRL related callbacks added to X509_STORE_CTX structure.
2265 Command line options added to 'verify' application to support this.
2267 This needs some additional work, such as being able to handle multiple
2268 CRLs with different times, extension based lookup (rather than just
2269 by subject name) and ultimately more complete V2 CRL extension
2273 *) Add a general user interface API (crypto/ui/). This is designed
2274 to replace things like des_read_password and friends (backward
2275 compatibility functions using this new API are provided).
2276 The purpose is to remove prompting functions from the DES code
2277 section as well as provide for prompting through dialog boxes in
2278 a window system and the like.
2281 *) Add "ex_data" support to ENGINE so implementations can add state at a
2282 per-structure level rather than having to store it globally.
2285 *) Make it possible for ENGINE structures to be copied when retrieved by
2286 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2287 This causes the "original" ENGINE structure to act like a template,
2288 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2289 operational state can be localised to each ENGINE structure, despite the
2290 fact they all share the same "methods". New ENGINE structures returned in
2291 this case have no functional references and the return value is the single
2292 structural reference. This matches the single structural reference returned
2293 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2297 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2298 needs to match any other type at all we need to manually clear the
2302 *) Changes to the "openssl engine" utility to include;
2303 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2304 about an ENGINE's available control commands.
2305 - executing control commands from command line arguments using the
2306 '-pre' and '-post' switches. '-post' is only used if '-t' is
2307 specified and the ENGINE is successfully initialised. The syntax for
2308 the individual commands are colon-separated, for example;
2309 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2312 *) New dynamic control command support for ENGINEs. ENGINEs can now
2313 declare their own commands (numbers), names (strings), descriptions,
2314 and input types for run-time discovery by calling applications. A
2315 subset of these commands are implicitly classed as "executable"
2316 depending on their input type, and only these can be invoked through
2317 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2318 can be based on user input, config files, etc). The distinction is
2319 that "executable" commands cannot return anything other than a boolean
2320 result and can only support numeric or string input, whereas some
2321 discoverable commands may only be for direct use through
2322 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2323 pointers, or other custom uses. The "executable" commands are to
2324 support parameterisations of ENGINE behaviour that can be
2325 unambiguously defined by ENGINEs and used consistently across any
2326 OpenSSL-based application. Commands have been added to all the
2327 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2328 control over shared-library paths without source code alterations.
2331 *) Changed all ENGINE implementations to dynamically allocate their
2332 ENGINEs rather than declaring them statically. Apart from this being
2333 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2334 this also allows the implementations to compile without using the
2335 internal engine_int.h header.
2338 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2339 'const' value. Any code that should be able to modify a RAND_METHOD
2340 should already have non-const pointers to it (ie. they should only
2341 modify their own ones).
2344 *) Made a variety of little tweaks to the ENGINE code.
2345 - "atalla" and "ubsec" string definitions were moved from header files
2346 to C code. "nuron" string definitions were placed in variables
2347 rather than hard-coded - allowing parameterisation of these values
2348 later on via ctrl() commands.
2349 - Removed unused "#if 0"'d code.
2350 - Fixed engine list iteration code so it uses ENGINE_free() to release
2351 structural references.
2352 - Constified the RAND_METHOD element of ENGINE structures.
2353 - Constified various get/set functions as appropriate and added
2354 missing functions (including a catch-all ENGINE_cpy that duplicates
2355 all ENGINE values onto a new ENGINE except reference counts/state).
2356 - Removed NULL parameter checks in get/set functions. Setting a method
2357 or function to NULL is a way of cancelling out a previously set
2358 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2359 and doesn't justify the extra error symbols and code.
2360 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2361 flags from engine_int.h to engine.h.
2362 - Changed prototypes for ENGINE handler functions (init(), finish(),
2363 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2366 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2367 to the algorithm using long division. The binary algorithm can be
2368 used only if the modulus is odd. On 32-bit systems, it is faster
2369 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2370 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2371 up to 450 bits. In 64-bit environments, the binary algorithm
2372 appears to be advantageous for much longer moduli; here we use it
2373 for moduli up to 2048 bits.
2376 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2377 could not support the combine flag in choice fields.
2380 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2381 extensions from a certificate request to the certificate.
2384 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2385 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2386 file: this allows the display of the certificate about to be
2387 signed to be customised, to allow certain fields to be included
2388 or excluded and extension details. The old system didn't display
2389 multicharacter strings properly, omitted fields not in the policy
2390 and couldn't display additional details such as extensions.
2393 *) Function EC_POINTs_mul for multiple scalar multiplication
2394 of an arbitrary number of elliptic curve points
2395 \sum scalars[i]*points[i],
2396 optionally including the generator defined for the EC_GROUP:
2397 scalar*generator + \sum scalars[i]*points[i].
2399 EC_POINT_mul is a simple wrapper function for the typical case
2400 that the point list has just one item (besides the optional
2404 *) First EC_METHODs for curves over GF(p):
2406 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2407 operations and provides various method functions that can also
2408 operate with faster implementations of modular arithmetic.
2410 EC_GFp_mont_method() reuses most functions that are part of
2411 EC_GFp_simple_method, but uses Montgomery arithmetic.
2413 [Bodo Moeller; point addition and point doubling
2414 implementation directly derived from source code provided by
2415 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2417 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2418 crypto/ec/ec_lib.c):
2420 Curves are EC_GROUP objects (with an optional group generator)
2421 based on EC_METHODs that are built into the library.
2423 Points are EC_POINT objects based on EC_GROUP objects.
2425 Most of the framework would be able to handle curves over arbitrary
2426 finite fields, but as there are no obvious types for fields other
2427 than GF(p), some functions are limited to that for now.
2430 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2431 that the file contains a complete HTTP response.
2434 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2435 change the def and num file printf format specifier from "%-40sXXX"
2436 to "%-39s XXX". The latter will always guarantee a space after the
2437 field while the former will cause them to run together if the field
2438 is 40 of more characters long.
2441 *) Constify the cipher and digest 'method' functions and structures
2442 and modify related functions to take constant EVP_MD and EVP_CIPHER
2446 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2447 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2450 *) Modify EVP_Digest*() routines so they now return values. Although the
2451 internal software routines can never fail additional hardware versions
2455 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2457 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2458 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2461 ERR_R_NESTED_ASN1_ERROR
2463 ERR_R_MISSING_ASN1_EOS
2464 were 4 .. 9, conflicting with
2465 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2467 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2468 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2470 Add new error code 'ERR_R_INTERNAL_ERROR'.
2473 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2477 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2478 sets the subject name for a new request or supersedes the
2479 subject name in a given request. Formats that can be parsed are
2480 'CN=Some Name, OU=myOU, C=IT'
2482 'CN=Some Name/OU=myOU/C=IT'.
2484 Add options '-batch' and '-verbose' to 'openssl req'.
2485 [Massimiliano Pala <madwolf@hackmasters.net>]
2487 *) Introduce the possibility to access global variables through
2488 functions on platform were that's the best way to handle exporting
2489 global variables in shared libraries. To enable this functionality,
2490 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2491 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2492 is normally done by Configure or something similar).
2494 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2495 in the source file (foo.c) like this:
2497 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2498 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2500 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2501 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2503 OPENSSL_DECLARE_GLOBAL(int,foo);
2504 #define foo OPENSSL_GLOBAL_REF(foo)
2505 OPENSSL_DECLARE_GLOBAL(double,bar);
2506 #define bar OPENSSL_GLOBAL_REF(bar)
2508 The #defines are very important, and therefore so is including the
2509 header file everywhere where the defined globals are used.
2511 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2512 of ASN.1 items, but that structure is a bit different.
2514 The largest change is in util/mkdef.pl which has been enhanced with
2515 better and easier to understand logic to choose which symbols should
2516 go into the Windows .def files as well as a number of fixes and code
2517 cleanup (among others, algorithm keywords are now sorted
2518 lexicographically to avoid constant rewrites).
2521 *) In BN_div() keep a copy of the sign of 'num' before writing the
2522 result to 'rm' because if rm==num the value will be overwritten
2523 and produce the wrong result if 'num' is negative: this caused
2524 problems with BN_mod() and BN_nnmod().
2527 *) Function OCSP_request_verify(). This checks the signature on an
2528 OCSP request and verifies the signer certificate. The signer
2529 certificate is just checked for a generic purpose and OCSP request
2533 *) Add OCSP_check_validity() function to check the validity of OCSP
2534 responses. OCSP responses are prepared in real time and may only
2535 be a few seconds old. Simply checking that the current time lies
2536 between thisUpdate and nextUpdate max reject otherwise valid responses
2537 caused by either OCSP responder or client clock inaccuracy. Instead
2538 we allow thisUpdate and nextUpdate to fall within a certain period of
2539 the current time. The age of the response can also optionally be
2540 checked. Two new options -validity_period and -status_age added to
2544 *) If signature or public key algorithm is unrecognized print out its
2545 OID rather that just UNKNOWN.
2548 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2549 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2550 ID to be generated from the issuer certificate alone which can then be
2551 passed to OCSP_id_issuer_cmp().
2554 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2555 ASN1 modules to export functions returning ASN1_ITEM pointers
2556 instead of the ASN1_ITEM structures themselves. This adds several
2557 new macros which allow the underlying ASN1 function/structure to
2558 be accessed transparently. As a result code should not use ASN1_ITEM
2559 references directly (such as &X509_it) but instead use the relevant
2560 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2561 use of the new ASN1 code on platforms where exporting structures
2562 is problematical (for example in shared libraries) but exporting
2563 functions returning pointers to structures is not.
2566 *) Add support for overriding the generation of SSL/TLS session IDs.
2567 These callbacks can be registered either in an SSL_CTX or per SSL.
2568 The purpose of this is to allow applications to control, if they wish,
2569 the arbitrary values chosen for use as session IDs, particularly as it
2570 can be useful for session caching in multiple-server environments. A
2571 command-line switch for testing this (and any client code that wishes
2572 to use such a feature) has been added to "s_server".
2573 [Geoff Thorpe, Lutz Jaenicke]
2575 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2576 of the form '#if defined(...) || defined(...) || ...' and
2577 '#if !defined(...) && !defined(...) && ...'. This also avoids
2578 the growing number of special cases it was previously handling.
2581 *) Make all configuration macros available for application by making
2582 sure they are available in opensslconf.h, by giving them names starting
2583 with "OPENSSL_" to avoid conflicts with other packages and by making
2584 sure e_os2.h will cover all platform-specific cases together with
2586 Additionally, it is now possible to define configuration/platform-
2587 specific names (called "system identities"). In the C code, these
2588 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2589 macro with the name beginning with "OPENSSL_SYS_", which is determined
2590 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2594 *) New option -set_serial to 'req' and 'x509' this allows the serial
2595 number to use to be specified on the command line. Previously self
2596 signed certificates were hard coded with serial number 0 and the
2597 CA options of 'x509' had to use a serial number in a file which was
2601 *) New options to 'ca' utility to support V2 CRL entry extensions.
2602 Currently CRL reason, invalidity date and hold instruction are
2603 supported. Add new CRL extensions to V3 code and some new objects.
2606 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2607 disable standard block padding (aka PKCS#5 padding) in the EVP
2608 API, which was previously mandatory. This means that the data is
2609 not padded in any way and so the total length much be a multiple
2610 of the block size, otherwise an error occurs.
2613 *) Initial (incomplete) OCSP SSL support.
2616 *) New function OCSP_parse_url(). This splits up a URL into its host,
2617 port and path components: primarily to parse OCSP URLs. New -url
2618 option to ocsp utility.
2621 *) New nonce behavior. The return value of OCSP_check_nonce() now
2622 reflects the various checks performed. Applications can decide
2623 whether to tolerate certain situations such as an absent nonce
2624 in a response when one was present in a request: the ocsp application
2625 just prints out a warning. New function OCSP_add1_basic_nonce()
2626 this is to allow responders to include a nonce in a response even if
2627 the request is nonce-less.
2630 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2631 skipped when using openssl x509 multiple times on a single input file,
2632 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2635 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2636 set string type: to handle setting ASN1_TIME structures. Fix ca
2637 utility to correctly initialize revocation date of CRLs.
2640 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2641 the clients preferred ciphersuites and rather use its own preferences.
2642 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2643 Internet Explorer by ensuring unchanged hash method during stepup.
2644 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2647 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2648 to aes and add a new 'exist' option to print out symbols that don't
2652 *) Additional options to ocsp utility to allow flags to be set and
2653 additional certificates supplied.
2656 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2657 OCSP client a number of certificate to only verify the response
2661 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2662 handle the new API. Currently only ECB, CBC modes supported. Add new
2665 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2666 Encryption Standard (AES) Ciphersuites for Transport Layer
2667 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2668 not enabled by default and were not part of the "ALL" ciphersuite
2669 alias because they were not yet official; they could be
2670 explicitly requested by specifying the "AESdraft" ciphersuite
2671 group alias. In the final release of OpenSSL 0.9.7, the group
2672 alias is called "AES" and is part of "ALL".)
2673 [Ben Laurie, Steve Henson, Bodo Moeller]
2675 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2676 request to response.
2679 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2680 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2681 extract information from a certificate request. OCSP_response_create()
2682 creates a response and optionally adds a basic response structure.
2683 OCSP_basic_add1_status() adds a complete single response to a basic
2684 response and returns the OCSP_SINGLERESP structure just added (to allow
2685 extensions to be included for example). OCSP_basic_add1_cert() adds a
2686 certificate to a basic response and OCSP_basic_sign() signs a basic
2687 response with various flags. New helper functions ASN1_TIME_check()
2688 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2689 (converts ASN1_TIME to GeneralizedTime).
2692 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2693 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2694 structure from a certificate. X509_pubkey_digest() digests the public_key
2695 contents: this is used in various key identifiers.
2698 *) Make sk_sort() tolerate a NULL argument.
2699 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2701 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2702 passed by the function are trusted implicitly. If any of them signed the
2703 response then it is assumed to be valid and is not verified.
2706 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2707 to data. This was previously part of the PKCS7 ASN1 code. This
2708 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2709 [Steve Henson, reported by Kenneth R. Robinette
2710 <support@securenetterm.com>]
2712 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2713 routines: without these tracing memory leaks is very painful.
2714 Fix leaks in PKCS12 and PKCS7 routines.
2717 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2718 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2719 effectively meant GeneralizedTime would never be used. Now it
2720 is initialised to -1 but X509_time_adj() now has to check the value
2721 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2722 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2723 [Steve Henson, reported by Kenneth R. Robinette
2724 <support@securenetterm.com>]
2726 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2727 result in a zero length in the ASN1_INTEGER structure which was
2728 not consistent with the structure when d2i_ASN1_INTEGER() was used
2729 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2730 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2731 where it did not print out a minus for negative ASN1_INTEGER.
2734 *) Add summary printout to ocsp utility. The various functions which
2735 convert status values to strings have been renamed to:
2736 OCSP_response_status_str(), OCSP_cert_status_str() and
2737 OCSP_crl_reason_str() and are no longer static. New options
2738 to verify nonce values and to disable verification. OCSP response
2739 printout format cleaned up.
2742 *) Add additional OCSP certificate checks. These are those specified
2743 in RFC2560. This consists of two separate checks: the CA of the
2744 certificate being checked must either be the OCSP signer certificate
2745 or the issuer of the OCSP signer certificate. In the latter case the
2746 OCSP signer certificate must contain the OCSP signing extended key
2747 usage. This check is performed by attempting to match the OCSP
2748 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2749 in the OCSP_CERTID structures of the response.
2752 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2753 and related routines. This uses the standard OpenSSL certificate
2754 verify routines to perform initial checks (just CA validity) and
2755 to obtain the certificate chain. Then additional checks will be
2756 performed on the chain. Currently the root CA is checked to see
2757 if it is explicitly trusted for OCSP signing. This is used to set
2758 a root CA as a global signing root: that is any certificate that
2759 chains to that CA is an acceptable OCSP signing certificate.
2762 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2763 extensions from a separate configuration file.
2764 As when reading extensions from the main configuration file,
2765 the '-extensions ...' option may be used for specifying the
2767 [Massimiliano Pala <madwolf@comune.modena.it>]
2769 *) New OCSP utility. Allows OCSP requests to be generated or
2770 read. The request can be sent to a responder and the output
2771 parsed, outputed or printed in text form. Not complete yet:
2772 still needs to check the OCSP response validity.
2775 *) New subcommands for 'openssl ca':
2776 'openssl ca -status <serial>' prints the status of the cert with
2777 the given serial number (according to the index file).
2778 'openssl ca -updatedb' updates the expiry status of certificates
2780 [Massimiliano Pala <madwolf@comune.modena.it>]
2782 *) New '-newreq-nodes' command option to CA.pl. This is like
2783 '-newreq', but calls 'openssl req' with the '-nodes' option
2784 so that the resulting key is not encrypted.
2785 [Damien Miller <djm@mindrot.org>]
2787 *) New configuration for the GNU Hurd.
2788 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2790 *) Initial code to implement OCSP basic response verify. This
2791 is currently incomplete. Currently just finds the signer's
2792 certificate and verifies the signature on the response.
2795 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2796 value of OPENSSLDIR. This is available via the new '-d' option
2797 to 'openssl version', and is also included in 'openssl version -a'.
2800 *) Allowing defining memory allocation callbacks that will be given
2801 file name and line number information in additional arguments
2802 (a const char* and an int). The basic functionality remains, as
2803 well as the original possibility to just replace malloc(),
2804 realloc() and free() by functions that do not know about these
2805 additional arguments. To register and find out the current
2806 settings for extended allocation functions, the following
2807 functions are provided:
2809 CRYPTO_set_mem_ex_functions
2810 CRYPTO_set_locked_mem_ex_functions
2811 CRYPTO_get_mem_ex_functions
2812 CRYPTO_get_locked_mem_ex_functions
2814 These work the same way as CRYPTO_set_mem_functions and friends.
2815 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2816 extended allocation function is enabled.
2817 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2818 a conventional allocation function is enabled.
2819 [Richard Levitte, Bodo Moeller]
2821 *) Finish off removing the remaining LHASH function pointer casts.
2822 There should no longer be any prototype-casting required when using
2823 the LHASH abstraction, and any casts that remain are "bugs". See
2824 the callback types and macros at the head of lhash.h for details
2825 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2828 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2829 If /dev/[u]random devices are not available or do not return enough
2830 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2832 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2833 /etc/entropy will be queried once each in this sequence, quering stops
2834 when enough entropy was collected without querying more sockets.
2837 *) Change the Unix RAND_poll() variant to be able to poll several
2838 random devices, as specified by DEVRANDOM, until a sufficient amount
2839 of data has been collected. We spend at most 10 ms on each file
2840 (select timeout) and read in non-blocking mode. DEVRANDOM now
2841 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2842 (previously it was just the string "/dev/urandom"), so on typical
2843 platforms the 10 ms delay will never occur.
2844 Also separate out the Unix variant to its own file, rand_unix.c.
2845 For VMS, there's a currently-empty rand_vms.c.
2848 *) Move OCSP client related routines to ocsp_cl.c. These
2849 provide utility functions which an application needing
2850 to issue a request to an OCSP responder and analyse the
2851 response will typically need: as opposed to those which an
2852 OCSP responder itself would need which will be added later.
2854 OCSP_request_sign() signs an OCSP request with an API similar
2855 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2856 response. OCSP_response_get1_basic() extracts basic response
2857 from response. OCSP_resp_find_status(): finds and extracts status
2858 information from an OCSP_CERTID structure (which will be created
2859 when the request structure is built). These are built from lower
2860 level functions which work on OCSP_SINGLERESP structures but
2861 wont normally be used unless the application wishes to examine
2862 extensions in the OCSP response for example.
2864 Replace nonce routines with a pair of functions.
2865 OCSP_request_add1_nonce() adds a nonce value and optionally
2866 generates a random value. OCSP_check_nonce() checks the
2867 validity of the nonce in an OCSP response.
2870 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2871 This doesn't copy the supplied OCSP_CERTID and avoids the
2872 need to free up the newly created id. Change return type
2873 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2874 This can then be used to add extensions to the request.
2875 Deleted OCSP_request_new(), since most of its functionality
2876 is now in OCSP_REQUEST_new() (and the case insensitive name
2877 clash) apart from the ability to set the request name which
2878 will be added elsewhere.
2881 *) Update OCSP API. Remove obsolete extensions argument from
2882 various functions. Extensions are now handled using the new
2883 OCSP extension code. New simple OCSP HTTP function which
2884 can be used to send requests and parse the response.
2887 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2888 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2889 uses the special reorder version of SET OF to sort the attributes
2890 and reorder them to match the encoded order. This resolves a long
2891 standing problem: a verify on a PKCS7 structure just after signing
2892 it used to fail because the attribute order did not match the
2893 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2894 it uses the received order. This is necessary to tolerate some broken
2895 software that does not order SET OF. This is handled by encoding
2896 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2897 to produce the required SET OF.
2900 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2901 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2902 files to get correct declarations of the ASN.1 item variables.
2905 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2906 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2907 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2908 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2909 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2910 ASN1_ITEM and no wrapper functions.
2913 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2914 replace the old function pointer based I/O routines. Change most of
2915 the *_d2i_bio() and *_d2i_fp() functions to use these.
2918 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2919 lines, recognice more "algorithms" that can be deselected, and make
2920 it complain about algorithm deselection that isn't recognised.
2923 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2924 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2925 to use new functions. Add NO_ASN1_OLD which can be set to remove
2926 some old style ASN1 functions: this can be used to determine if old
2927 code will still work when these eventually go away.
2930 *) New extension functions for OCSP structures, these follow the
2931 same conventions as certificates and CRLs.
2934 *) New function X509V3_add1_i2d(). This automatically encodes and
2935 adds an extension. Its behaviour can be customised with various
2936 flags to append, replace or delete. Various wrappers added for
2937 certifcates and CRLs.
2940 *) Fix to avoid calling the underlying ASN1 print routine when
2941 an extension cannot be parsed. Correct a typo in the
2942 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2945 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2946 entries for variables.
2949 *) Add functionality to apps/openssl.c for detecting locking
2950 problems: As the program is single-threaded, all we have
2951 to do is register a locking callback using an array for
2952 storing which locks are currently held by the program.
2955 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2956 SSL_get_ex_data_X509_STORE_idx(), which is used in
2957 ssl_verify_cert_chain() and thus can be called at any time
2958 during TLS/SSL handshakes so that thread-safety is essential.
2959 Unfortunately, the ex_data design is not at all suited
2960 for multi-threaded use, so it probably should be abolished.
2963 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2964 [Broadcom, tweaked and integrated by Geoff Thorpe]
2966 *) Move common extension printing code to new function
2967 X509V3_print_extensions(). Reorganise OCSP print routines and
2968 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2971 *) New function X509_signature_print() to remove duplication in some
2975 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2976 set (this was treated exactly the same as SET OF previously). This
2977 is used to reorder the STACK representing the structure to match the
2978 encoding. This will be used to get round a problem where a PKCS7
2979 structure which was signed could not be verified because the STACK
2980 order did not reflect the encoded order.
2983 *) Reimplement the OCSP ASN1 module using the new code.
2986 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2987 for its ASN1 operations. The old style function pointers still exist
2988 for now but they will eventually go away.
2991 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2992 completely replaces the old ASN1 functionality with a table driven
2993 encoder and decoder which interprets an ASN1_ITEM structure describing
2994 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2995 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2996 has also been converted to the new form.
2999 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3000 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3001 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3002 for negative moduli.
3005 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3006 of not touching the result's sign bit.
3009 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3013 *) Changed the LHASH code to use prototypes for callbacks, and created
3014 macros to declare and implement thin (optionally static) functions
3015 that provide type-safety and avoid function pointer casting for the
3016 type-specific callbacks.
3019 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3021 [Veers Staats <staatsvr@asc.hpc.mil>,
3022 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3024 *) Reformat the FAQ so the different questions and answers can be divided
3025 in sections depending on the subject.
3028 *) Have the zlib compression code load ZLIB.DLL dynamically under
3032 *) New function BN_mod_sqrt for computing square roots modulo a prime
3033 (using the probabilistic Tonelli-Shanks algorithm unless
3034 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3035 be handled deterministically).
3036 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3038 *) Make BN_mod_inverse faster by explicitly handling small quotients
3039 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3040 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3043 *) New function BN_kronecker.
3046 *) Fix BN_gcd so that it works on negative inputs; the result is
3047 positive unless both parameters are zero.
3048 Previously something reasonably close to an infinite loop was
3049 possible because numbers could be growing instead of shrinking
3050 in the implementation of Euclid's algorithm.
3053 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3054 sign of the number in question.
3056 Fix BN_is_word(a,w) to work correctly for w == 0.
3058 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3059 because its test if the absolute value of 'a' equals 'w'.
3060 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3061 it exists mostly for use in the implementations of BN_is_zero(),
3062 BN_is_one(), and BN_is_word().
3065 *) New function BN_swap.
3068 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3069 the exponentiation functions are more likely to produce reasonable
3070 results on negative inputs.
3073 *) Change BN_mod_mul so that the result is always non-negative.
3074 Previously, it could be negative if one of the factors was negative;
3075 I don't think anyone really wanted that behaviour.
3078 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3079 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3080 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3081 and add new functions:
3090 BN_mod_lshift1_quick
3094 These functions always generate non-negative results.
3096 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3097 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3099 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3100 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3101 be reduced modulo m.
3102 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3105 The following entry accidentily appeared in the CHANGES file
3106 distributed with OpenSSL 0.9.7. The modifications described in
3107 it do *not* apply to OpenSSL 0.9.7.
3109 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3110 was actually never needed) and in BN_mul(). The removal in BN_mul()
3111 required a small change in bn_mul_part_recursive() and the addition
3112 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3113 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3114 bn_sub_words() and bn_add_words() except they take arrays with
3119 *) In 'openssl passwd', verify passwords read from the terminal
3120 unless the '-salt' option is used (which usually means that
3121 verification would just waste user's time since the resulting
3122 hash is going to be compared with some given password hash)
3123 or the new '-noverify' option is used.
3125 This is an incompatible change, but it does not affect
3126 non-interactive use of 'openssl passwd' (passwords on the command
3127 line, '-stdin' option, '-in ...' option) and thus should not
3131 *) Remove all references to RSAref, since there's no more need for it.
3134 *) Make DSO load along a path given through an environment variable
3135 (SHLIB_PATH) with shl_load().
3138 *) Constify the ENGINE code as a result of BIGNUM constification.
3139 Also constify the RSA code and most things related to it. In a
3140 few places, most notable in the depth of the ASN.1 code, ugly
3141 casts back to non-const were required (to be solved at a later
3145 *) Make it so the openssl application has all engines loaded by default.
3148 *) Constify the BIGNUM routines a little more.
3151 *) Add the following functions:
3153 ENGINE_load_cswift()
3155 ENGINE_load_atalla()
3157 ENGINE_load_builtin_engines()
3159 That way, an application can itself choose if external engines that
3160 are built-in in OpenSSL shall ever be used or not. The benefit is
3161 that applications won't have to be linked with libdl or other dso
3162 libraries unless it's really needed.
3164 Changed 'openssl engine' to load all engines on demand.
3165 Changed the engine header files to avoid the duplication of some
3166 declarations (they differed!).
3169 *) 'openssl engine' can now list capabilities.
3172 *) Better error reporting in 'openssl engine'.
3175 *) Never call load_dh_param(NULL) in s_server.
3178 *) Add engine application. It can currently list engines by name and
3179 identity, and test if they are actually available.
3182 *) Improve RPM specification file by forcing symbolic linking and making
3183 sure the installed documentation is also owned by root.root.
3184 [Damien Miller <djm@mindrot.org>]
3186 *) Give the OpenSSL applications more possibilities to make use of
3187 keys (public as well as private) handled by engines.
3190 *) Add OCSP code that comes from CertCo.
3193 *) Add VMS support for the Rijndael code.
3196 *) Added untested support for Nuron crypto accelerator.
3199 *) Add support for external cryptographic devices. This code was
3200 previously distributed separately as the "engine" branch.
3201 [Geoff Thorpe, Richard Levitte]
3203 *) Rework the filename-translation in the DSO code. It is now possible to
3204 have far greater control over how a "name" is turned into a filename
3205 depending on the operating environment and any oddities about the
3206 different shared library filenames on each system.
3209 *) Support threads on FreeBSD-elf in Configure.
3212 *) Fix for SHA1 assembly problem with MASM: it produces
3213 warnings about corrupt line number information when assembling
3214 with debugging information. This is caused by the overlapping
3216 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3219 NCONF_get_number() has no error checking at all. As a replacement,
3220 NCONF_get_number_e() is defined (_e for "error checking") and is
3221 promoted strongly. The old NCONF_get_number is kept around for
3222 binary backward compatibility.
3223 Make it possible for methods to load from something other than a BIO,
3224 by providing a function pointer that is given a name instead of a BIO.
3225 For example, this could be used to load configuration data from an
3229 *) Fix for non blocking accept BIOs. Added new I/O special reason
3230 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3231 with non blocking I/O was not possible because no retry code was
3232 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3236 *) Added the beginnings of Rijndael support.
3239 *) Fix for bug in DirectoryString mask setting. Add support for
3240 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3241 to allow certificate printing to more controllable, additional
3242 'certopt' option to 'x509' to allow new printing options to be
3246 *) Clean old EAY MD5 hack from e_os.h.
3249 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3251 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3252 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3253 [Joe Orton, Steve Henson]
3255 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3257 *) Fix additional bug revealed by the NISCC test suite:
3259 Stop bug triggering large recursion when presented with
3260 certain ASN.1 tags (CVE-2003-0851)
3263 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3265 *) Fix various bugs revealed by running the NISCC test suite:
3267 Stop out of bounds reads in the ASN1 code when presented with
3268 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3270 If verify callback ignores invalid public key errors don't try to check
3271 certificate signature with the NULL public key.
3275 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3276 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3280 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3281 extra data after the compression methods not only for TLS 1.0
3282 but also for SSL 3.0 (as required by the specification).
3283 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3285 *) Change X509_certificate_type() to mark the key as exported/exportable
3286 when it's 512 *bits* long, not 512 bytes.
3289 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3291 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3292 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3293 a protocol version number mismatch like a decryption error
3294 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3297 *) Turn on RSA blinding by default in the default implementation
3298 to avoid a timing attack. Applications that don't want it can call
3299 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3300 They would be ill-advised to do so in most cases.
3301 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3303 *) Change RSA blinding code so that it works when the PRNG is not
3304 seeded (in this case, the secret RSA exponent is abused as
3305 an unpredictable seed -- if it is not unpredictable, there
3306 is no point in blinding anyway). Make RSA blinding thread-safe
3307 by remembering the creator's thread ID in rsa->blinding and
3308 having all other threads use local one-time blinding factors
3309 (this requires more computation than sharing rsa->blinding, but
3310 avoids excessive locking; and if an RSA object is not shared
3311 between threads, blinding will still be very fast).
3314 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3316 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3317 via timing by performing a MAC computation even if incorrrect
3318 block cipher padding has been found. This is a countermeasure
3319 against active attacks where the attacker has to distinguish
3320 between bad padding and a MAC verification error. (CVE-2003-0078)
3322 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3323 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3324 Martin Vuagnoux (EPFL, Ilion)]
3326 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3328 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3329 memory from it's contents. This is done with a counter that will
3330 place alternating values in each byte. This can be used to solve
3331 two issues: 1) the removal of calls to memset() by highly optimizing
3332 compilers, and 2) cleansing with other values than 0, since those can
3333 be read through on certain media, for example a swap space on disk.
3336 *) Bugfix: client side session caching did not work with external caching,
3337 because the session->cipher setting was not restored when reloading
3338 from the external cache. This problem was masked, when
3339 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3340 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3343 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3344 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3345 [Zeev Lieber <zeev-l@yahoo.com>]
3347 *) Undo an undocumented change introduced in 0.9.6e which caused
3348 repeated calls to OpenSSL_add_all_ciphers() and
3349 OpenSSL_add_all_digests() to be ignored, even after calling
3353 *) Change the default configuration reader to deal with last line not
3354 being properly terminated.
3357 *) Change X509_NAME_cmp() so it applies the special rules on handling
3358 DN values that are of type PrintableString, as well as RDNs of type
3359 emailAddress where the value has the type ia5String.
3360 [stefank@valicert.com via Richard Levitte]
3362 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3363 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3364 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3365 the bitwise-OR of the two for use by the majority of applications
3366 wanting this behaviour, and update the docs. The documented
3367 behaviour and actual behaviour were inconsistent and had been
3368 changing anyway, so this is more a bug-fix than a behavioural
3370 [Geoff Thorpe, diagnosed by Nadav Har'El]
3372 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3373 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3376 *) Fix initialization code race conditions in
3377 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3378 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3379 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3380 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3381 ssl2_get_cipher_by_char(),
3382 ssl3_get_cipher_by_char().
3383 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3385 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3386 the cached sessions are flushed, as the remove_cb() might use ex_data
3387 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3388 (see [openssl.org #212]).
3389 [Geoff Thorpe, Lutz Jaenicke]
3391 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3392 length, instead of the encoding length to d2i_ASN1_OBJECT.
3395 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3397 *) [In 0.9.6g-engine release:]
3398 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3399 [Lynn Gazis <lgazis@rainbow.com>]
3401 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3403 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3404 and get fix the header length calculation.
3405 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3406 Alon Kantor <alonk@checkpoint.com> (and others),
3409 *) Use proper error handling instead of 'assertions' in buffer
3410 overflow checks added in 0.9.6e. This prevents DoS (the
3411 assertions could call abort()).
3412 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3414 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3416 *) Add various sanity checks to asn1_get_length() to reject
3417 the ASN1 length bytes if they exceed sizeof(long), will appear
3418 negative or the content length exceeds the length of the
3420 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3422 *) Fix cipher selection routines: ciphers without encryption had no flags
3423 for the cipher strength set and where therefore not handled correctly
3424 by the selection routines (PR #130).
3427 *) Fix EVP_dsa_sha macro.
3431 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3432 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3433 that was added in OpenSSL 0.9.6d.
3435 As the countermeasure turned out to be incompatible with some
3436 broken SSL implementations, the new option is part of SSL_OP_ALL.
3437 SSL_OP_ALL is usually employed when compatibility with weird SSL
3438 implementations is desired (e.g. '-bugs' option to 's_client' and
3439 's_server'), so the new option is automatically set in many
3443 *) Changes in security patch:
3445 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3446 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3447 Air Force Materiel Command, USAF, under agreement number
3450 *) Add various sanity checks to asn1_get_length() to reject
3451 the ASN1 length bytes if they exceed sizeof(long), will appear
3452 negative or the content length exceeds the length of the
3453 supplied buffer. (CVE-2002-0659)
3454 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3456 *) Assertions for various potential buffer overflows, not known to
3458 [Ben Laurie (CHATS)]
3460 *) Various temporary buffers to hold ASCII versions of integers were
3461 too small for 64 bit platforms. (CVE-2002-0655)
3462 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3464 *) Remote buffer overflow in SSL3 protocol - an attacker could
3465 supply an oversized session ID to a client. (CVE-2002-0656)
3466 [Ben Laurie (CHATS)]
3468 *) Remote buffer overflow in SSL2 protocol - an attacker could
3469 supply an oversized client master key. (CVE-2002-0656)
3470 [Ben Laurie (CHATS)]
3472 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3474 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3475 encoded as NULL) with id-dsa-with-sha1.
3476 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3478 *) Check various X509_...() return values in apps/req.c.
3479 [Nils Larsch <nla@trustcenter.de>]
3481 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3482 an end-of-file condition would erronously be flagged, when the CRLF
3483 was just at the end of a processed block. The bug was discovered when
3484 processing data through a buffering memory BIO handing the data to a
3485 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3486 <ptsekov@syntrex.com> and Nedelcho Stanev.
3489 *) Implement a countermeasure against a vulnerability recently found
3490 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3491 before application data chunks to avoid the use of known IVs
3492 with data potentially chosen by the attacker.
3495 *) Fix length checks in ssl3_get_client_hello().
3498 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3499 to prevent ssl3_read_internal() from incorrectly assuming that
3500 ssl3_read_bytes() found application data while handshake
3501 processing was enabled when in fact s->s3->in_read_app_data was
3502 merely automatically cleared during the initial handshake.
3503 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3505 *) Fix object definitions for Private and Enterprise: they were not
3506 recognized in their shortname (=lowercase) representation. Extend
3507 obj_dat.pl to issue an error when using undefined keywords instead
3508 of silently ignoring the problem (Svenning Sorensen
3509 <sss@sss.dnsalias.net>).
3512 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3513 generators, i.e. generators other than 2 and 5. (Previously, the
3514 code did not properly initialise the 'add' and 'rem' values to
3515 BN_generate_prime().)
3517 In the new general case, we do not insist that 'generator' is
3518 actually a primitive root: This requirement is rather pointless;
3519 a generator of the order-q subgroup is just as good, if not
3523 *) Map new X509 verification errors to alerts. Discovered and submitted by
3524 Tom Wu <tom@arcot.com>.
3527 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3528 returning non-zero before the data has been completely received
3529 when using non-blocking I/O.
3530 [Bodo Moeller; problem pointed out by John Hughes]
3532 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3533 [Ben Laurie, Lutz Jaenicke]
3535 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3536 Yoram Zahavi <YoramZ@gilian.com>).
3539 *) Add information about CygWin 1.3 and on, and preserve proper
3540 configuration for the versions before that.
3541 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3543 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3544 check whether we deal with a copy of a session and do not delete from
3545 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3546 <izhar@checkpoint.com>.
3549 *) Do not store session data into the internal session cache, if it
3550 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3551 flag is set). Proposed by Aslam <aslam@funk.com>.
3554 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3558 *) [In 0.9.6d-engine release:]
3559 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3560 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3562 *) Add the configuration target linux-s390x.
3563 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3565 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3566 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3567 variable as an indication that a ClientHello message has been
3568 received. As the flag value will be lost between multiple
3569 invocations of ssl3_accept when using non-blocking I/O, the
3570 function may not be aware that a handshake has actually taken
3571 place, thus preventing a new session from being added to the
3574 To avoid this problem, we now set s->new_session to 2 instead of
3575 using a local variable.
3576 [Lutz Jaenicke, Bodo Moeller]
3578 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3579 if the SSL_R_LENGTH_MISMATCH error is detected.
3580 [Geoff Thorpe, Bodo Moeller]
3582 *) New 'shared_ldflag' column in Configure platform table.
3585 *) Fix EVP_CIPHER_mode macro.
3586 ["Dan S. Camper" <dan@bti.net>]
3588 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3589 type, we must throw them away by setting rr->length to 0.
3590 [D P Chang <dpc@qualys.com>]
3592 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3594 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3595 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3596 worked incorrectly for those cases where range = 10..._2 and
3597 3*range is two bits longer than range.)
3600 *) Only add signing time to PKCS7 structures if it is not already
3604 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3605 OBJ_ld_ce should be OBJ_id_ce.
3606 Also some ip-pda OIDs in crypto/objects/objects.txt were
3607 incorrect (cf. RFC 3039).
3608 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3610 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3611 returns early because it has nothing to do.
3612 [Andy Schneider <andy.schneider@bjss.co.uk>]
3614 *) [In 0.9.6c-engine release:]
3615 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3616 [Andy Schneider <andy.schneider@bjss.co.uk>]
3618 *) [In 0.9.6c-engine release:]
3619 Add support for Cryptographic Appliance's keyserver technology.
3620 (Use engine 'keyclient')
3621 [Cryptographic Appliances and Geoff Thorpe]
3623 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3624 is called via tools/c89.sh because arguments have to be
3625 rearranged (all '-L' options must appear before the first object
3627 [Richard Shapiro <rshapiro@abinitio.com>]
3629 *) [In 0.9.6c-engine release:]
3630 Add support for Broadcom crypto accelerator cards, backported
3632 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3634 *) [In 0.9.6c-engine release:]
3635 Add support for SureWare crypto accelerator cards from
3636 Baltimore Technologies. (Use engine 'sureware')
3637 [Baltimore Technologies and Mark Cox]
3639 *) [In 0.9.6c-engine release:]
3640 Add support for crypto accelerator cards from Accelerated
3641 Encryption Processing, www.aep.ie. (Use engine 'aep')
3642 [AEP Inc. and Mark Cox]
3644 *) Add a configuration entry for gcc on UnixWare.
3645 [Gary Benson <gbenson@redhat.com>]
3647 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3648 messages are stored in a single piece (fixed-length part and
3649 variable-length part combined) and fix various bugs found on the way.
3652 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3653 instead. BIO_gethostbyname() does not know what timeouts are
3654 appropriate, so entries would stay in cache even when they have
3656 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3658 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3659 faced with a pathologically small ClientHello fragment that does
3660 not contain client_version: Instead of aborting with an error,
3661 simply choose the highest available protocol version (i.e.,
3662 TLS 1.0 unless it is disabled). In practice, ClientHello
3663 messages are never sent like this, but this change gives us
3664 strictly correct behaviour at least for TLS.
3667 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3668 never resets s->method to s->ctx->method when called from within
3669 one of the SSL handshake functions.
3670 [Bodo Moeller; problem pointed out by Niko Baric]
3672 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3673 (sent using the client's version number) if client_version is
3674 smaller than the protocol version in use. Also change
3675 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3676 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3677 the client will at least see that alert.
3680 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3684 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3685 client receives HelloRequest while in a handshake.
3686 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3688 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3689 should end in 'break', not 'goto end' which circuments various
3690 cleanups done in state SSL_ST_OK. But session related stuff
3691 must be disabled for SSL_ST_OK in the case that we just sent a
3694 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3695 before just sending a HelloRequest.
3696 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3698 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3699 reveal whether illegal block cipher padding was found or a MAC
3700 verification error occured. (Neither SSLerr() codes nor alerts
3701 are directly visible to potential attackers, but the information
3702 may leak via logfiles.)
3704 Similar changes are not required for the SSL 2.0 implementation
3705 because the number of padding bytes is sent in clear for SSL 2.0,
3706 and the extra bytes are just ignored. However ssl/s2_pkt.c
3707 failed to verify that the purported number of padding bytes is in
3711 *) Add OpenUNIX-8 support including shared libraries
3712 (Boyd Lynn Gerber <gerberb@zenez.com>).
3715 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3716 'wristwatch attack' using huge encoding parameters (cf.
3717 James H. Manger's CRYPTO 2001 paper). Note that the
3718 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3719 encoding parameters and hence was not vulnerable.
3722 *) BN_sqr() bug fix.
3723 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3725 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3726 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3727 followed by modular reduction.
3728 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3730 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3731 equivalent based on BN_pseudo_rand() instead of BN_rand().
3734 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3735 This function was broken, as the check for a new client hello message
3736 to handle SGC did not allow these large messages.
3737 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3740 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3743 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3744 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3747 *) Rework the configuration and shared library support for Tru64 Unix.
3748 The configuration part makes use of modern compiler features and
3749 still retains old compiler behavior for those that run older versions
3750 of the OS. The shared library support part includes a variant that
3751 uses the RPATH feature, and is available through the special
3752 configuration target "alpha-cc-rpath", which will never be selected
3754 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3756 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3757 with the same message size as in ssl3_get_certificate_request().
3758 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3759 messages might inadvertently be reject as too long.
3760 [Petr Lampa <lampa@fee.vutbr.cz>]
3762 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3765 *) Modified SSL library such that the verify_callback that has been set
3766 specificly for an SSL object with SSL_set_verify() is actually being
3767 used. Before the change, a verify_callback set with this function was
3768 ignored and the verify_callback() set in the SSL_CTX at the time of
3769 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3770 to allow the necessary settings.
3773 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3774 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3775 done automatically (in contradiction to the requirements of the C
3776 standard). This made problems when used from OpenSSH.
3779 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3780 dh->length and always used
3782 BN_rand_range(priv_key, dh->p).
3784 BN_rand_range() is not necessary for Diffie-Hellman, and this
3785 specific range makes Diffie-Hellman unnecessarily inefficient if
3786 dh->length (recommended exponent length) is much smaller than the
3787 length of dh->p. We could use BN_rand_range() if the order of
3788 the subgroup was stored in the DH structure, but we only have
3793 BN_rand(priv_key, l, ...)
3795 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3801 RSA_eay_public_encrypt
3802 RSA_eay_private_decrypt
3803 RSA_eay_private_encrypt (signing)
3804 RSA_eay_public_decrypt (signature verification)
3806 (default implementations for RSA_public_encrypt,
3807 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3808 always reject numbers >= n.
3811 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3812 to synchronize access to 'locking_thread'. This is necessary on
3813 systems where access to 'locking_thread' (an 'unsigned long'
3814 variable) is not atomic.
3817 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3818 *before* setting the 'crypto_lock_rand' flag. The previous code had
3819 a race condition if 0 is a valid thread ID.
3820 [Travis Vitek <vitek@roguewave.com>]
3822 *) Add support for shared libraries under Irix.
3823 [Albert Chin-A-Young <china@thewrittenword.com>]
3825 *) Add configuration option to build on Linux on both big-endian and
3827 [Ralf Baechle <ralf@uni-koblenz.de>]
3829 *) Add the possibility to create shared libraries on HP-UX.
3832 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3834 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3835 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3836 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3837 PRNG state recovery was possible based on the output of
3838 one PRNG request appropriately sized to gain knowledge on
3839 'md' followed by enough consecutive 1-byte PRNG requests
3840 to traverse all of 'state'.
3842 1. When updating 'md_local' (the current thread's copy of 'md')
3843 during PRNG output generation, hash all of the previous
3844 'md_local' value, not just the half used for PRNG output.
3846 2. Make the number of bytes from 'state' included into the hash
3847 independent from the number of PRNG bytes requested.
3849 The first measure alone would be sufficient to avoid
3850 Markku-Juhani's attack. (Actually it had never occurred
3851 to me that the half of 'md_local' used for chaining was the
3852 half from which PRNG output bytes were taken -- I had always
3853 assumed that the secret half would be used.) The second
3854 measure makes sure that additional data from 'state' is never
3855 mixed into 'md_local' in small portions; this heuristically
3856 further strengthens the PRNG.
3859 *) Fix crypto/bn/asm/mips3.s.
3862 *) When only the key is given to "enc", the IV is undefined. Print out
3863 an error message in this case.
3866 *) Handle special case when X509_NAME is empty in X509 printing routines.
3869 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3870 positive and less than q.
3873 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3874 used: it isn't thread safe and the add_lock_callback should handle
3876 [Paul Rose <Paul.Rose@bridge.com>]
3878 *) Verify that incoming data obeys the block size in
3879 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3883 [Ulf Möller, Bodo Möller]
3885 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3886 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3887 when fixing the server behaviour for backwards-compatible 'client
3888 hello' messages. (Note that the attack is impractical against
3889 SSL 3.0 and TLS 1.0 anyway because length and version checking
3890 means that the probability of guessing a valid ciphertext is
3891 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3894 Before 0.9.5, the countermeasure (hide the error by generating a
3895 random 'decryption result') did not work properly because
3896 ERR_clear_error() was missing, meaning that SSL_get_error() would
3897 detect the supposedly ignored error.
3899 Both problems are now fixed.
3902 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3903 (previously it was 1024).
3906 *) Fix for compatibility mode trust settings: ignore trust settings
3907 unless some valid trust or reject settings are present.
3910 *) Fix for blowfish EVP: its a variable length cipher.
3913 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3914 parameters in DSA public key structures and return an error in the
3915 DSA routines if parameters are absent.
3918 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3919 in the current directory if neither $RANDFILE nor $HOME was set.
3920 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3921 caused some confusion to Windows users who haven't defined $HOME.
3922 Thus RAND_file_name() is changed again: e_os.h can define a
3923 DEFAULT_HOME, which will be used if $HOME is not set.
3924 For Windows, we use "C:"; on other platforms, we still require
3925 environment variables.
3927 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3928 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3929 having multiple threads call RAND_poll() concurrently.
3932 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3933 combination of a flag and a thread ID variable.
3934 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3935 flag), *other* threads can enter ssleay_add_bytes without obeying
3936 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3937 that they do not hold after the first thread unsets add_do_not_lock).
3940 *) Change bctest again: '-x' expressions are not available in all
3944 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3946 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3947 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3949 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3950 the default extension for executables, if any. Also, make the perl
3951 scripts that use symlink() to test if it really exists and use "cp"
3952 if it doesn't. All this made OpenSSL compilable and installable in
3956 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3957 If SEQUENCE is length is indefinite just set c->slen to the total
3958 amount of data available.
3959 [Steve Henson, reported by shige@FreeBSD.org]
3960 [This change does not apply to 0.9.7.]
3962 *) Change bctest to avoid here-documents inside command substitution
3963 (workaround for FreeBSD /bin/sh bug).
3964 For compatibility with Ultrix, avoid shell functions (introduced
3965 in the bctest version that searches along $PATH).
3968 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3969 with des_encrypt() defined on some operating systems, like Solaris
3973 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3974 On the Importance of Eliminating Errors in Cryptographic
3975 Computations, J. Cryptology 14 (2001) 2, 101-119,
3976 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3979 *) MIPS assembler BIGNUM division bug fix.
3982 *) Disabled incorrect Alpha assembler code.
3985 *) Fix PKCS#7 decode routines so they correctly update the length
3986 after reading an EOC for the EXPLICIT tag.
3988 [This change does not apply to 0.9.7.]
3990 *) Fix bug in PKCS#12 key generation routines. This was triggered
3991 if a 3DES key was generated with a 0 initial byte. Include
3992 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3993 (but broken) behaviour.
3996 *) Enhance bctest to search for a working bc along $PATH and print
3998 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4000 *) Fix memory leaks in err.c: free err_data string if necessary;
4001 don't write to the wrong index in ERR_set_error_data.
4004 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4008 *) Replace rdtsc with _emit statements for VC++ version 5.
4009 [Jeremy Cooper <jeremy@baymoo.org>]
4011 *) Make it possible to reuse SSLv2 sessions.
4014 *) In copy_email() check for >= 0 as a return value for
4015 X509_NAME_get_index_by_NID() since 0 is a valid index.
4016 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4018 *) Avoid coredump with unsupported or invalid public keys by checking if
4019 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4020 PKCS7_verify() fails with non detached data.
4023 *) Don't use getenv in library functions when run as setuid/setgid.
4024 New function OPENSSL_issetugid().
4027 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4028 due to incorrect handling of multi-threading:
4030 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4032 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4034 3. Count how many times MemCheck_off() has been called so that
4035 nested use can be treated correctly. This also avoids
4036 inband-signalling in the previous code (which relied on the
4037 assumption that thread ID 0 is impossible).
4040 *) Add "-rand" option also to s_client and s_server.
4043 *) Fix CPU detection on Irix 6.x.
4044 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4045 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4047 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4050 [This change does not apply to 0.9.7.]
4052 *) Use the cached encoding of an X509_NAME structure rather than
4053 copying it. This is apparently the reason for the libsafe "errors"
4054 but the code is actually correct.
4057 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4058 Bleichenbacher's DSA attack.
4059 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4060 to be set and top=0 forces the highest bit to be set; top=-1 is new
4061 and leaves the highest bit random.
4062 [Ulf Moeller, Bodo Moeller]
4064 *) In the NCONF_...-based implementations for CONF_... queries
4065 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4066 a temporary CONF structure with the data component set to NULL
4067 (which gives segmentation faults in lh_retrieve).
4068 Instead, use NULL for the CONF pointer in CONF_get_string and
4069 CONF_get_number (which may use environment variables) and directly
4070 return NULL from CONF_get_section.
4073 *) Fix potential buffer overrun for EBCDIC.
4076 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4077 keyUsage if basicConstraints absent for a CA.
4080 *) Make SMIME_write_PKCS7() write mail header values with a format that
4081 is more generally accepted (no spaces before the semicolon), since
4082 some programs can't parse those values properly otherwise. Also make
4083 sure BIO's that break lines after each write do not create invalid
4087 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4088 macros previously used would not encode an empty SEQUENCE OF
4089 and break the signature.
4091 [This change does not apply to 0.9.7.]
4093 *) Zero the premaster secret after deriving the master secret in
4097 *) Add some EVP_add_digest_alias registrations (as found in
4098 OpenSSL_add_all_digests()) to SSL_library_init()
4099 aka OpenSSL_add_ssl_algorithms(). This provides improved
4100 compatibility with peers using X.509 certificates
4101 with unconventional AlgorithmIdentifier OIDs.
4104 *) Fix for Irix with NO_ASM.
4105 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4107 *) ./config script fixes.
4108 [Ulf Moeller, Richard Levitte]
4110 *) Fix 'openssl passwd -1'.
4113 *) Change PKCS12_key_gen_asc() so it can cope with non null
4114 terminated strings whose length is passed in the passlen
4115 parameter, for example from PEM callbacks. This was done
4116 by adding an extra length parameter to asc2uni().
4117 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4119 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4120 call failed, free the DSA structure.
4123 *) Fix to uni2asc() to cope with zero length Unicode strings.
4124 These are present in some PKCS#12 files.
4127 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4128 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4129 when writing a 32767 byte record.
4130 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4132 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4133 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4135 (RSA objects have a reference count access to which is protected
4136 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4137 so they are meant to be shared between threads.)
4138 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4139 "Reddie, Steven" <Steven.Reddie@ca.com>]
4141 *) Fix a deadlock in CRYPTO_mem_leaks().
4144 *) Use better test patterns in bntest.
4147 *) rand_win.c fix for Borland C.
4150 *) BN_rshift bugfix for n == 0.
4153 *) Add a 'bctest' script that checks for some known 'bc' bugs
4154 so that 'make test' does not abort just because 'bc' is broken.
4157 *) Store verify_result within SSL_SESSION also for client side to
4158 avoid potential security hole. (Re-used sessions on the client side
4159 always resulted in verify_result==X509_V_OK, not using the original
4160 result of the server certificate verification.)
4163 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4164 SSL3_RT_APPLICATION_DATA, return 0.
4165 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4169 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4170 releases, have been re-implemented by renaming the previous
4171 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4172 and ssl3_read_internal, respectively, and adding 'peek' parameters
4173 to them. The new ssl[23]_{read,peek} functions are calls to
4174 ssl[23]_read_internal with the 'peek' flag set appropriately.
4175 A 'peek' parameter has also been added to ssl3_read_bytes, which
4176 does the actual work for ssl3_read_internal.
4179 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4180 the method-specific "init()" handler. Also clean up ex_data after
4181 calling the method-specific "finish()" handler. Previously, this was
4182 happening the other way round.
4185 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4186 The previous value, 12, was not always sufficient for BN_mod_exp().
4189 *) Make sure that shared libraries get the internal name engine with
4190 the full version number and not just 0. This should mark the
4191 shared libraries as not backward compatible. Of course, this should
4192 be changed again when we can guarantee backward binary compatibility.
4195 *) Fix typo in get_cert_by_subject() in by_dir.c
4196 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4198 *) Rework the system to generate shared libraries:
4200 - Make note of the expected extension for the shared libraries and
4201 if there is a need for symbolic links from for example libcrypto.so.0
4202 to libcrypto.so.0.9.7. There is extended info in Configure for
4205 - Make as few rebuilds of the shared libraries as possible.
4207 - Still avoid linking the OpenSSL programs with the shared libraries.
4209 - When installing, install the shared libraries separately from the
4213 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4215 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4216 and not in SSL_clear because the latter is also used by the
4217 accept/connect functions; previously, the settings made by
4218 SSL_set_read_ahead would be lost during the handshake.
4219 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4221 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4222 Previously, it would create entries for disableed algorithms no
4226 *) Added several new manual pages for SSL_* function.
4229 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4231 *) In ssl23_get_client_hello, generate an error message when faced
4232 with an initial SSL 3.0/TLS record that is too small to contain the
4233 first two bytes of the ClientHello message, i.e. client_version.
4234 (Note that this is a pathologic case that probably has never happened
4235 in real life.) The previous approach was to use the version number
4236 from the record header as a substitute; but our protocol choice
4237 should not depend on that one because it is not authenticated
4238 by the Finished messages.
4241 *) More robust randomness gathering functions for Windows.
4242 [Jeffrey Altman <jaltman@columbia.edu>]
4244 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4245 not set then we don't setup the error code for issuer check errors
4246 to avoid possibly overwriting other errors which the callback does
4247 handle. If an application does set the flag then we assume it knows
4248 what it is doing and can handle the new informational codes
4252 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4253 a general "ANY" type, as such it should be able to decode anything
4254 including tagged types. However it didn't check the class so it would
4255 wrongly interpret tagged types in the same way as their universal
4256 counterpart and unknown types were just rejected. Changed so that the
4257 tagged and unknown types are handled in the same way as a SEQUENCE:
4258 that is the encoding is stored intact. There is also a new type
4259 "V_ASN1_OTHER" which is used when the class is not universal, in this
4260 case we have no idea what the actual type is so we just lump them all
4264 *) On VMS, stdout may very well lead to a file that is written to
4265 in a record-oriented fashion. That means that every write() will
4266 write a separate record, which will be read separately by the
4267 programs trying to read from it. This can be very confusing.
4269 The solution is to put a BIO filter in the way that will buffer
4270 text until a linefeed is reached, and then write everything a
4271 line at a time, so every record written will be an actual line,
4272 not chunks of lines and not (usually doesn't happen, but I've
4273 seen it once) several lines in one record. BIO_f_linebuffer() is
4276 Currently, it's a VMS-only method, because that's where it has
4277 been tested well enough.
4280 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4281 it can return incorrect results.
4282 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4283 but it was in 0.9.6-beta[12].)
4286 *) Disable the check for content being present when verifying detached
4287 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4288 include zero length content when signing messages.
4291 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4292 BIO_ctrl (for BIO pairs).
4295 *) Add DSO method for VMS.
4298 *) Bug fix: Montgomery multiplication could produce results with the
4302 *) Add RPM specification openssl.spec and modify it to build three
4303 packages. The default package contains applications, application
4304 documentation and run-time libraries. The devel package contains
4305 include files, static libraries and function documentation. The
4306 doc package contains the contents of the doc directory. The original
4307 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4310 *) Add a large number of documentation files for many SSL routines.
4311 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4313 *) Add a configuration entry for Sony News 4.
4314 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4316 *) Don't set the two most significant bits to one when generating a
4317 random number < q in the DSA library.
4320 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4321 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4322 the underlying transport is blocking) if a handshake took place.
4323 (The default behaviour is needed by applications such as s_client
4324 and s_server that use select() to determine when to use SSL_read;
4325 but for applications that know in advance when to expect data, it
4326 just makes things more complicated.)
4329 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4333 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4334 work better on such systems.
4335 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4337 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4338 Update PKCS12_parse() so it copies the friendlyName and the
4339 keyid to the certificates aux info.
4342 *) Fix bug in PKCS7_verify() which caused an infinite loop
4343 if there was more than one signature.
4344 [Sven Uszpelkat <su@celocom.de>]
4346 *) Major change in util/mkdef.pl to include extra information
4347 about each symbol, as well as presentig variables as well
4348 as functions. This change means that there's n more need
4349 to rebuild the .num files when some algorithms are excluded.
4352 *) Allow the verify time to be set by an application,
4353 rather than always using the current time.
4356 *) Phase 2 verify code reorganisation. The certificate
4357 verify code now looks up an issuer certificate by a
4358 number of criteria: subject name, authority key id
4359 and key usage. It also verifies self signed certificates
4360 by the same criteria. The main comparison function is
4361 X509_check_issued() which performs these checks.
4363 Lot of changes were necessary in order to support this
4364 without completely rewriting the lookup code.
4366 Authority and subject key identifier are now cached.
4368 The LHASH 'certs' is X509_STORE has now been replaced
4369 by a STACK_OF(X509_OBJECT). This is mainly because an
4370 LHASH can't store or retrieve multiple objects with
4371 the same hash value.
4373 As a result various functions (which were all internal
4374 use only) have changed to handle the new X509_STORE
4375 structure. This will break anything that messed round
4376 with X509_STORE internally.
4378 The functions X509_STORE_add_cert() now checks for an
4379 exact match, rather than just subject name.
4381 The X509_STORE API doesn't directly support the retrieval
4382 of multiple certificates matching a given criteria, however
4383 this can be worked round by performing a lookup first
4384 (which will fill the cache with candidate certificates)
4385 and then examining the cache for matches. This is probably
4386 the best we can do without throwing out X509_LOOKUP
4387 entirely (maybe later...).
4389 The X509_VERIFY_CTX structure has been enhanced considerably.
4391 All certificate lookup operations now go via a get_issuer()
4392 callback. Although this currently uses an X509_STORE it
4393 can be replaced by custom lookups. This is a simple way
4394 to bypass the X509_STORE hackery necessary to make this
4395 work and makes it possible to use more efficient techniques
4396 in future. A very simple version which uses a simple
4397 STACK for its trusted certificate store is also provided
4398 using X509_STORE_CTX_trusted_stack().
4400 The verify_cb() and verify() callbacks now have equivalents
4401 in the X509_STORE_CTX structure.
4403 X509_STORE_CTX also has a 'flags' field which can be used
4404 to customise the verify behaviour.
4407 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4408 excludes S/MIME capabilities.
4411 *) When a certificate request is read in keep a copy of the
4412 original encoding of the signed data and use it when outputing
4413 again. Signatures then use the original encoding rather than
4414 a decoded, encoded version which may cause problems if the
4415 request is improperly encoded.
4418 *) For consistency with other BIO_puts implementations, call
4419 buffer_write(b, ...) directly in buffer_puts instead of calling
4422 In BIO_puts, increment b->num_write as in BIO_write.
4423 [Peter.Sylvester@EdelWeb.fr]
4425 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4426 BN_zero, we may not return a BIGNUM with an array consisting of
4430 *) Avoid calling abort() from within the library when problems are
4431 detected, except if preprocessor symbols have been defined
4432 (such as REF_CHECK, BN_DEBUG etc.).
4435 *) New openssl application 'rsautl'. This utility can be
4436 used for low level RSA operations. DER public key
4437 BIO/fp routines also added.
4440 *) New Configure entry and patches for compiling on QNX 4.
4441 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4443 *) A demo state-machine implementation was sponsored by
4444 Nuron (http://www.nuron.com/) and is now available in
4445 demos/state_machine.
4448 *) New options added to the 'dgst' utility for signature
4449 generation and verification.
4452 *) Unrecognized PKCS#7 content types are now handled via a
4453 catch all ASN1_TYPE structure. This allows unsupported
4454 types to be stored as a "blob" and an application can
4455 encode and decode it manually.
4458 *) Fix various signed/unsigned issues to make a_strex.c
4460 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4462 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4463 length if passed a buffer. ASN1_INTEGER_to_BN failed
4464 if passed a NULL BN and its argument was negative.
4465 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4467 *) Modification to PKCS#7 encoding routines to output definite
4468 length encoding. Since currently the whole structures are in
4469 memory there's not real point in using indefinite length
4470 constructed encoding. However if OpenSSL is compiled with
4471 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4474 *) Added BIO_vprintf() and BIO_vsnprintf().
4477 *) Added more prefixes to parse for in the the strings written
4478 through a logging bio, to cover all the levels that are available
4479 through syslog. The prefixes are now:
4481 PANIC, EMERG, EMR => LOG_EMERG
4482 ALERT, ALR => LOG_ALERT
4483 CRIT, CRI => LOG_CRIT
4484 ERROR, ERR => LOG_ERR
4485 WARNING, WARN, WAR => LOG_WARNING
4486 NOTICE, NOTE, NOT => LOG_NOTICE
4487 INFO, INF => LOG_INFO
4488 DEBUG, DBG => LOG_DEBUG
4490 and as before, if none of those prefixes are present at the
4491 beginning of the string, LOG_ERR is chosen.
4493 On Win32, the LOG_* levels are mapped according to this:
4495 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4496 LOG_WARNING => EVENTLOG_WARNING_TYPE
4497 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4501 *) Made it possible to reconfigure with just the configuration
4502 argument "reconf" or "reconfigure". The command line arguments
4503 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4504 and are retrieved from there when reconfiguring.
4508 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4510 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4513 *) The obj_dat.pl script was messing up the sorting of object
4514 names. The reason was that it compared the quoted version
4515 of strings as a result "OCSP" > "OCSP Signing" because
4516 " > SPACE. Changed script to store unquoted versions of
4517 names and add quotes on output. It was also omitting some
4518 names from the lookup table if they were given a default
4519 value (that is if SN is missing it is given the same
4520 value as LN and vice versa), these are now added on the
4521 grounds that if an object has a name we should be able to
4522 look it up. Finally added warning output when duplicate
4523 short or long names are found.
4526 *) Changes needed for Tandem NSK.
4527 [Scott Uroff <scott@xypro.com>]
4529 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4530 RSA_padding_check_SSLv23(), special padding was never detected
4531 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4532 version rollback attacks was not effective.
4534 In s23_clnt.c, don't use special rollback-attack detection padding
4535 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4536 client; similarly, in s23_srvr.c, don't do the rollback check if
4537 SSL 2.0 is the only protocol enabled in the server.
4540 *) Make it possible to get hexdumps of unprintable data with 'openssl
4541 asn1parse'. By implication, the functions ASN1_parse_dump() and
4542 BIO_dump_indent() are added.
4545 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4546 these print out strings and name structures based on various
4547 flags including RFC2253 support and proper handling of
4548 multibyte characters. Added options to the 'x509' utility
4549 to allow the various flags to be set.
4552 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4553 Also change the functions X509_cmp_current_time() and
4554 X509_gmtime_adj() work with an ASN1_TIME structure,
4555 this will enable certificates using GeneralizedTime in validity
4556 dates to be checked.
4559 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4560 negative public key encodings) on by default,
4561 NO_NEG_PUBKEY_BUG can be set to disable it.
4564 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4565 content octets. An i2c_ASN1_OBJECT is unnecessary because
4566 the encoding can be trivially obtained from the structure.
4569 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4570 not read locks (CRYPTO_r_[un]lock).
4573 *) A first attempt at creating official support for shared
4574 libraries through configuration. I've kept it so the
4575 default is static libraries only, and the OpenSSL programs
4576 are always statically linked for now, but there are
4577 preparations for dynamic linking in place.
4578 This has been tested on Linux and Tru64.
4581 *) Randomness polling function for Win9x, as described in:
4582 Peter Gutmann, Software Generation of Practically Strong
4586 *) Fix so PRNG is seeded in req if using an already existing
4590 *) New options to smime application. -inform and -outform
4591 allow alternative formats for the S/MIME message including
4592 PEM and DER. The -content option allows the content to be
4593 specified separately. This should allow things like Netscape
4594 form signing output easier to verify.
4597 *) Fix the ASN1 encoding of tags using the 'long form'.
4600 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4601 STRING types. These convert content octets to and from the
4602 underlying type. The actual tag and length octets are
4603 already assumed to have been read in and checked. These
4604 are needed because all other string types have virtually
4605 identical handling apart from the tag. By having versions
4606 of the ASN1 functions that just operate on content octets
4607 IMPLICIT tagging can be handled properly. It also allows
4608 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4609 and ASN1_INTEGER are identical apart from the tag.
4612 *) Change the handling of OID objects as follows:
4614 - New object identifiers are inserted in objects.txt, following
4615 the syntax given in objects.README.
4616 - objects.pl is used to process obj_mac.num and create a new
4618 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4621 This is currently kind of a hack, and the perl code in objects.pl
4622 isn't very elegant, but it works as I intended. The simplest way
4623 to check that it worked correctly is to look in obj_dat.h and
4624 check the array nid_objs and make sure the objects haven't moved
4625 around (this is important!). Additions are OK, as well as
4626 consistent name changes.
4629 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4632 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4633 The given file adds to whatever has already been seeded into the
4634 random pool through the RANDFILE configuration file option or
4635 environment variable, or the default random state file.
4638 *) mkstack.pl now sorts each macro group into lexical order.
4639 Previously the output order depended on the order the files
4640 appeared in the directory, resulting in needless rewriting
4644 *) Patches to make OpenSSL compile under Win32 again. Mostly
4645 work arounds for the VC++ problem that it treats func() as
4646 func(void). Also stripped out the parts of mkdef.pl that
4647 added extra typesafe functions: these no longer exist.
4650 *) Reorganisation of the stack code. The macros are now all
4651 collected in safestack.h . Each macro is defined in terms of
4652 a "stack macro" of the form SKM_<name>(type, a, b). The
4653 DEBUG_SAFESTACK is now handled in terms of function casts,
4654 this has the advantage of retaining type safety without the
4655 use of additional functions. If DEBUG_SAFESTACK is not defined
4656 then the non typesafe macros are used instead. Also modified the
4657 mkstack.pl script to handle the new form. Needs testing to see
4658 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4659 the default if no major problems. Similar behaviour for ASN1_SET_OF
4660 and PKCS12_STACK_OF.
4663 *) When some versions of IIS use the 'NET' form of private key the
4664 key derivation algorithm is different. Normally MD5(password) is
4665 used as a 128 bit RC4 key. In the modified case
4666 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4667 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4668 as the old Netscape_RSA functions except they have an additional
4669 'sgckey' parameter which uses the modified algorithm. Also added
4670 an -sgckey command line option to the rsa utility. Thanks to
4671 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4672 algorithm to openssl-dev.
4675 *) The evp_local.h macros were using 'c.##kname' which resulted in
4676 invalid expansion on some systems (SCO 5.0.5 for example).
4677 Corrected to 'c.kname'.
4678 [Phillip Porch <root@theporch.com>]
4680 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4681 a STACK of email addresses from a certificate or request, these look
4682 in the subject name and the subject alternative name extensions and
4683 omit any duplicate addresses.
4686 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4687 This makes DSA verification about 2 % faster.
4690 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4691 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4692 plus overhead for 1024 bit moduli).
4693 This makes exponentiations about 0.5 % faster for 1024 bit
4694 exponents (as measured by "openssl speed rsa2048").
4697 *) Rename memory handling macros to avoid conflicts with other
4699 Malloc => OPENSSL_malloc
4700 Malloc_locked => OPENSSL_malloc_locked
4701 Realloc => OPENSSL_realloc
4702 Free => OPENSSL_free
4705 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4706 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4709 *) CygWin32 support.
4710 [John Jarvie <jjarvie@newsguy.com>]
4712 *) The type-safe stack code has been rejigged. It is now only compiled
4713 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4714 by default all type-specific stack functions are "#define"d back to
4715 standard stack functions. This results in more streamlined output
4716 but retains the type-safety checking possibilities of the original
4720 *) The STACK code has been cleaned up, and certain type declarations
4721 that didn't make a lot of sense have been brought in line. This has
4722 also involved a cleanup of sorts in safestack.h to more correctly
4723 map type-safe stack functions onto their plain stack counterparts.
4724 This work has also resulted in a variety of "const"ifications of
4725 lots of the code, especially "_cmp" operations which should normally
4726 be prototyped with "const" parameters anyway.
4729 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4730 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4731 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4732 where all of 'md' is used each time the PRNG is used, but 'state'
4733 is used only indexed by a cyclic counter. As entropy may not be
4734 well distributed from the beginning, 'md' is important as a
4735 chaining variable. However, the output function chains only half
4736 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4737 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4738 in all of 'state' being rewritten, with the new values depending
4739 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4742 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4743 the handshake is continued after ssl_verify_cert_chain();
4744 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4745 can lead to 'unexplainable' connection aborts later.
4746 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4748 *) Major EVP API cipher revision.
4749 Add hooks for extra EVP features. This allows various cipher
4750 parameters to be set in the EVP interface. Support added for variable
4751 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4752 setting of RC2 and RC5 parameters.
4754 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4757 Remove lots of duplicated code from the EVP library. For example *every*
4758 cipher init() function handles the 'iv' in the same way according to the
4759 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4760 for CFB and OFB modes they zero ctx->num.
4762 New functionality allows removal of S/MIME code RC2 hack.
4764 Most of the routines have the same form and so can be declared in terms
4767 By shifting this to the top level EVP_CipherInit() it can be removed from
4768 all individual ciphers. If the cipher wants to handle IVs or keys
4769 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4772 Change lots of functions like EVP_EncryptUpdate() to now return a
4773 value: although software versions of the algorithms cannot fail
4774 any installed hardware versions can.
4777 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4778 this option is set, tolerate broken clients that send the negotiated
4779 protocol version number instead of the requested protocol version
4783 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4784 i.e. non-zero for export ciphersuites, zero otherwise.
4785 Previous versions had this flag inverted, inconsistent with
4786 rsa_tmp_cb (..._TMP_RSA_CB).
4787 [Bodo Moeller; problem reported by Amit Chopra]
4789 *) Add missing DSA library text string. Work around for some IIS
4790 key files with invalid SEQUENCE encoding.
4793 *) Add a document (doc/standards.txt) that list all kinds of standards
4794 and so on that are implemented in OpenSSL.
4797 *) Enhance c_rehash script. Old version would mishandle certificates
4798 with the same subject name hash and wouldn't handle CRLs at all.
4799 Added -fingerprint option to crl utility, to support new c_rehash
4803 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4806 *) Fix for SSL server purpose checking. Server checking was
4807 rejecting certificates which had extended key usage present
4808 but no ssl client purpose.
4809 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4811 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4812 is a little unclear about how a blank password is handled.
4813 Since the password in encoded as a BMPString with terminating
4814 double NULL a zero length password would end up as just the
4815 double NULL. However no password at all is different and is
4816 handled differently in the PKCS#12 key generation code. NS
4817 treats a blank password as zero length. MSIE treats it as no
4818 password on export: but it will try both on import. We now do
4819 the same: PKCS12_parse() tries zero length and no password if
4820 the password is set to "" or NULL (NULL is now a valid password:
4821 it wasn't before) as does the pkcs12 application.
4824 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4825 perror when PEM_read_bio_X509_REQ fails, the error message must
4826 be obtained from the error queue.
4829 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4830 it in ERR_remove_state if appropriate, and change ERR_get_state
4831 accordingly to avoid race conditions (this is necessary because
4832 thread_hash is no longer constant once set).
4835 *) Bugfix for linux-elf makefile.one.
4838 *) RSA_get_default_method() will now cause a default
4839 RSA_METHOD to be chosen if one doesn't exist already.
4840 Previously this was only set during a call to RSA_new()
4841 or RSA_new_method(NULL) meaning it was possible for
4842 RSA_get_default_method() to return NULL.
4845 *) Added native name translation to the existing DSO code
4846 that will convert (if the flag to do so is set) filenames
4847 that are sufficiently small and have no path information
4848 into a canonical native form. Eg. "blah" converted to
4849 "libblah.so" or "blah.dll" etc.
4852 *) New function ERR_error_string_n(e, buf, len) which is like
4853 ERR_error_string(e, buf), but writes at most 'len' bytes
4854 including the 0 terminator. For ERR_error_string_n, 'buf'
4856 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4858 *) CONF library reworked to become more general. A new CONF
4859 configuration file reader "class" is implemented as well as a
4860 new functions (NCONF_*, for "New CONF") to handle it. The now
4861 old CONF_* functions are still there, but are reimplemented to
4862 work in terms of the new functions. Also, a set of functions
4863 to handle the internal storage of the configuration data is
4864 provided to make it easier to write new configuration file
4865 reader "classes" (I can definitely see something reading a
4866 configuration file in XML format, for example), called _CONF_*,
4867 or "the configuration storage API"...
4869 The new configuration file reading functions are:
4871 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4872 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4874 NCONF_default, NCONF_WIN32
4876 NCONF_dump_fp, NCONF_dump_bio
4878 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4879 NCONF_new creates a new CONF object. This works in the same way
4880 as other interfaces in OpenSSL, like the BIO interface.
4881 NCONF_dump_* dump the internal storage of the configuration file,
4882 which is useful for debugging. All other functions take the same
4883 arguments as the old CONF_* functions wth the exception of the
4884 first that must be a `CONF *' instead of a `LHASH *'.
4886 To make it easer to use the new classes with the old CONF_* functions,
4887 the function CONF_set_default_method is provided.
4890 *) Add '-tls1' option to 'openssl ciphers', which was already
4891 mentioned in the documentation but had not been implemented.
4892 (This option is not yet really useful because even the additional
4893 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4896 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4897 OpenSSL-based applications) load shared libraries and bind to
4898 them in a portable way.
4899 [Geoff Thorpe, with contributions from Richard Levitte]
4901 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4903 *) Make sure _lrotl and _lrotr are only used with MSVC.
4905 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4906 (the default implementation of RAND_status).
4908 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4909 to '-clrext' (= clear extensions), as intended and documented.
4910 [Bodo Moeller; inconsistency pointed out by Michael Attili
4913 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4914 was larger than the MD block size.
4915 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4917 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4918 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4919 using the passed key: if the passed key was a private key the result
4920 of X509_print(), for example, would be to print out all the private key
4924 *) des_quad_cksum() byte order bug fix.
4925 [Ulf Möller, using the problem description in krb4-0.9.7, where
4926 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4928 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4930 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4932 *) For easily testing in shell scripts whether some command
4933 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4934 returns with exit code 0 iff no command of the given name is available.
4935 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4936 the output goes to stdout and nothing is printed to stderr.
4937 Additional arguments are always ignored.
4939 Since for each cipher there is a command of the same name,
4940 the 'no-cipher' compilation switches can be tested this way.
4942 ('openssl no-XXX' is not able to detect pseudo-commands such
4943 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4946 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4949 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4950 is set; it will be thrown away anyway because each handshake creates
4952 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4953 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4954 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4955 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4958 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4959 'Q' and 'R' lose their special meanings (quit/renegotiate).
4960 This is part of what -quiet does; unlike -quiet, -ign_eof
4961 does not suppress any output.
4964 *) Add compatibility options to the purpose and trust code. The
4965 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4966 accepts a certificate or CA, this was the previous behaviour,
4967 with all the associated security issues.
4969 X509_TRUST_COMPAT is the old trust behaviour: only and
4970 automatically trust self signed roots in certificate store. A
4971 new trust setting X509_TRUST_DEFAULT is used to specify that
4972 a purpose has no associated trust setting and it should instead
4973 use the value in the default purpose.
4976 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4977 and fix a memory leak.
4980 *) In util/mkerr.pl (which implements 'make errors'), preserve
4981 reason strings from the previous version of the .c file, as
4982 the default to have only downcase letters (and digits) in
4983 automatically generated reasons codes is not always appropriate.
4986 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4987 using strerror. Previously, ERR_reason_error_string() returned
4988 library names as reason strings for SYSerr; but SYSerr is a special
4989 case where small numbers are errno values, not library numbers.
4992 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4993 converts DSA parameters into DH parameters. (When creating parameters,
4994 DSA_generate_parameters is used.)
4997 *) Include 'length' (recommended exponent length) in C code generated
4998 by 'openssl dhparam -C'.
5001 *) The second argument to set_label in perlasm was already being used
5002 so couldn't be used as a "file scope" flag. Moved to third argument
5006 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5007 instead of RAND_bytes for encryption IVs and salts.
5010 *) Include RAND_status() into RAND_METHOD instead of implementing
5011 it only for md_rand.c Otherwise replacing the PRNG by calling
5012 RAND_set_rand_method would be impossible.
5015 *) Don't let DSA_generate_key() enter an infinite loop if the random
5016 number generation fails.
5019 *) New 'rand' application for creating pseudo-random output.
5022 *) Added configuration support for Linux/IA64
5023 [Rolf Haberrecker <rolf@suse.de>]
5025 *) Assembler module support for Mingw32.
5028 *) Shared library support for HPUX (in shlib/).
5029 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5031 *) Shared library support for Solaris gcc.
5032 [Lutz Behnke <behnke@trustcenter.de>]
5034 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5036 *) PKCS7_encrypt() was adding text MIME headers twice because they
5037 were added manually and by SMIME_crlf_copy().
5040 *) In bntest.c don't call BN_rand with zero bits argument.
5041 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5043 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5044 case was implemented. This caused BN_div_recp() to fail occasionally.
5047 *) Add an optional second argument to the set_label() in the perl
5048 assembly language builder. If this argument exists and is set
5049 to 1 it signals that the assembler should use a symbol whose
5050 scope is the entire file, not just the current function. This
5051 is needed with MASM which uses the format label:: for this scope.
5052 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5054 *) Change the ASN1 types so they are typedefs by default. Before
5055 almost all types were #define'd to ASN1_STRING which was causing
5056 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5060 *) Change names of new functions to the new get1/get0 naming
5061 convention: After 'get1', the caller owns a reference count
5062 and has to call ..._free; 'get0' returns a pointer to some
5063 data structure without incrementing reference counters.
5064 (Some of the existing 'get' functions increment a reference
5065 counter, some don't.)
5066 Similarly, 'set1' and 'add1' functions increase reference
5067 counters or duplicate objects.
5070 *) Allow for the possibility of temp RSA key generation failure:
5071 the code used to assume it always worked and crashed on failure.
5074 *) Fix potential buffer overrun problem in BIO_printf().
5075 [Ulf Möller, using public domain code by Patrick Powell; problem
5076 pointed out by David Sacerdote <das33@cornell.edu>]
5078 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5079 RAND_egd() and RAND_status(). In the command line application,
5080 the EGD socket can be specified like a seed file using RANDFILE
5084 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5085 Some CAs (e.g. Verisign) distribute certificates in this form.
5088 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5089 list to exclude them. This means that no special compilation option
5090 is needed to use anonymous DH: it just needs to be included in the
5094 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5095 EVP_MD_type. The old functionality is available in a new macro called
5096 EVP_MD_md(). Change code that uses it and update docs.
5099 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5100 where the 'void *' argument is replaced by a function pointer argument.
5101 Previously 'void *' was abused to point to functions, which works on
5102 many platforms, but is not correct. As these functions are usually
5103 called by macros defined in OpenSSL header files, most source code
5104 should work without changes.
5107 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5108 sections with information on -D... compiler switches used for
5109 compiling the library so that applications can see them. To enable
5110 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5111 must be defined. E.g.,
5112 #define OPENSSL_ALGORITHM_DEFINES
5113 #include <openssl/opensslconf.h>
5114 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5115 [Richard Levitte, Ulf and Bodo Möller]
5117 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5121 *) Change the 'other' type in certificate aux info to a STACK_OF
5122 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5123 the required ASN1 format: arbitrary types determined by an OID.
5126 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5127 argument to 'req'. This is not because the function is newer or
5128 better than others it just uses the work 'NEW' in the certificate
5129 request header lines. Some software needs this.
5132 *) Reorganise password command line arguments: now passwords can be
5133 obtained from various sources. Delete the PEM_cb function and make
5134 it the default behaviour: i.e. if the callback is NULL and the
5135 usrdata argument is not NULL interpret it as a null terminated pass
5136 phrase. If usrdata and the callback are NULL then the pass phrase
5137 is prompted for as usual.
5140 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5141 the support is automatically enabled. The resulting binaries will
5142 autodetect the card and use it if present.
5143 [Ben Laurie and Compaq Inc.]
5145 *) Work around for Netscape hang bug. This sends certificate request
5146 and server done in one record. Since this is perfectly legal in the
5147 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5148 the bugs/SSLv3 entry for more info.
5151 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5154 *) Add -rand argument to smime and pkcs12 applications and read/write
5158 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5161 *) Add command line password options to the remaining applications.
5164 *) Bug fix for BN_div_recp() for numerators with an even number of
5168 *) More tests in bntest.c, and changed test_bn output.
5171 *) ./config recognizes MacOS X now.
5174 *) Bug fix for BN_div() when the first words of num and divsor are
5175 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5178 *) Add support for various broken PKCS#8 formats, and command line
5179 options to produce them.
5182 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5183 get temporary BIGNUMs from a BN_CTX.
5186 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5190 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5191 include a #define from the old name to the new. The original intent
5192 was that statically linked binaries could for example just call
5193 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5194 link with digests. This never worked becayse SSLeay_add_all_digests()
5195 and SSLeay_add_all_ciphers() were in the same source file so calling
5196 one would link with the other. They are now in separate source files.
5199 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5202 *) Use a less unusual form of the Miller-Rabin primality test (it used
5203 a binary algorithm for exponentiation integrated into the Miller-Rabin
5204 loop, our standard modexp algorithms are faster).
5207 *) Support for the EBCDIC character set completed.
5208 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5210 *) Source code cleanups: use const where appropriate, eliminate casts,
5211 use void * instead of char * in lhash.
5214 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5215 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5216 this the server could overwrite ephemeral keys that the client
5220 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5221 using 50 iterations of the Rabin-Miller test.
5223 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5224 iterations of the Rabin-Miller test as required by the appendix
5225 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5226 As BN_is_prime_fasttest includes trial division, DSA parameter
5227 generation becomes much faster.
5229 This implies a change for the callback functions in DSA_is_prime
5230 and DSA_generate_parameters: The callback function is called once
5231 for each positive witness in the Rabin-Miller test, not just
5232 occasionally in the inner loop; and the parameters to the
5233 callback function now provide an iteration count for the outer
5234 loop rather than for the current invocation of the inner loop.
5235 DSA_generate_parameters additionally can call the callback
5236 function with an 'iteration count' of -1, meaning that a
5237 candidate has passed the trial division test (when q is generated
5238 from an application-provided seed, trial division is skipped).
5241 *) New function BN_is_prime_fasttest that optionally does trial
5242 division before starting the Rabin-Miller test and has
5243 an additional BN_CTX * argument (whereas BN_is_prime always
5244 has to allocate at least one BN_CTX).
5245 'callback(1, -1, cb_arg)' is called when a number has passed the
5246 trial division stage.
5249 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5253 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5256 *) New function BN_pseudo_rand().
5259 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5260 bignum version of BN_from_montgomery() with the working code from
5261 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5265 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5266 made it impossible to use the same SSL_SESSION data structure in
5267 SSL2 clients in multiple threads.
5270 *) The return value of RAND_load_file() no longer counts bytes obtained
5271 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5272 to seed the PRNG (previously an explicit byte count was required).
5273 [Ulf Möller, Bodo Möller]
5275 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5276 used (char *) instead of (void *) and had casts all over the place.
5279 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5282 *) Retain source code compatibility for BN_prime_checks macro:
5283 BN_is_prime(..., BN_prime_checks, ...) now uses
5284 BN_prime_checks_for_size to determine the appropriate number of
5285 Rabin-Miller iterations.
5288 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5289 DH_CHECK_P_NOT_SAFE_PRIME.
5290 (Check if this is true? OpenPGP calls them "strong".)
5293 *) Merge the functionality of "dh" and "gendh" programs into a new program
5294 "dhparam". The old programs are retained for now but will handle DH keys
5295 (instead of parameters) in future.
5298 *) Make the ciphers, s_server and s_client programs check the return values
5299 when a new cipher list is set.
5302 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5303 ciphers. Before when the 56bit ciphers were enabled the sorting was
5306 The syntax for the cipher sorting has been extended to support sorting by
5307 cipher-strength (using the strength_bits hard coded in the tables).
5308 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5310 Fix a bug in the cipher-command parser: when supplying a cipher command
5311 string with an "undefined" symbol (neither command nor alphanumeric
5312 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5313 an error is flagged.
5315 Due to the strength-sorting extension, the code of the
5316 ssl_create_cipher_list() function was completely rearranged. I hope that
5317 the readability was also increased :-)
5318 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5320 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5321 for the first serial number and places 2 in the serial number file. This
5322 avoids problems when the root CA is created with serial number zero and
5323 the first user certificate has the same issuer name and serial number
5327 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5328 the new code. Add documentation for this stuff.
5331 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5332 X509_*() to X509at_*() on the grounds that they don't handle X509
5333 structures and behave in an analagous way to the X509v3 functions:
5334 they shouldn't be called directly but wrapper functions should be used
5337 So we also now have some wrapper functions that call the X509at functions
5338 when passed certificate requests. (TO DO: similar things can be done with
5339 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5340 things. Some of these need some d2i or i2d and print functionality
5341 because they handle more complex structures.)
5344 *) Add missing #ifndefs that caused missing symbols when building libssl
5345 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5346 NO_RSA in ssl/s2*.c.
5347 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5349 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5350 has a return value which indicates the quality of the random data
5351 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5352 error queue. New function RAND_pseudo_bytes() generates output that is
5353 guaranteed to be unique but not unpredictable. RAND_add is like
5354 RAND_seed, but takes an extra argument for an entropy estimate
5355 (RAND_seed always assumes full entropy).
5358 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5359 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5360 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5361 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5362 false-positive rate of at most 2^-80 for random input.
5365 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5368 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5369 in the 0.9.5 release), this returns the chain
5370 from an X509_CTX structure with a dup of the stack and all
5371 the X509 reference counts upped: so the stack will exist
5372 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5375 Also make SSL_SESSION_print() print out the verify return
5379 *) Add manpage for the pkcs12 command. Also change the default
5380 behaviour so MAC iteration counts are used unless the new
5381 -nomaciter option is used. This improves file security and
5382 only older versions of MSIE (4.0 for example) need it.
5385 *) Honor the no-xxx Configure options when creating .DEF files.
5388 *) Add PKCS#10 attributes to field table: challengePassword,
5389 unstructuredName and unstructuredAddress. These are taken from
5390 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5391 international characters are used.
5393 More changes to X509_ATTRIBUTE code: allow the setting of types
5394 based on strings. Remove the 'loc' parameter when adding
5395 attributes because these will be a SET OF encoding which is sorted
5399 *) Initial changes to the 'req' utility to allow request generation
5400 automation. This will allow an application to just generate a template
5401 file containing all the field values and have req construct the
5404 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5405 used all over the place including certificate requests and PKCS#7
5406 structures. They are currently handled manually where necessary with
5407 some primitive wrappers for PKCS#7. The new functions behave in a
5408 manner analogous to the X509 extension functions: they allow
5409 attributes to be looked up by NID and added.
5411 Later something similar to the X509V3 code would be desirable to
5412 automatically handle the encoding, decoding and printing of the
5413 more complex types. The string types like challengePassword can
5414 be handled by the string table functions.
5416 Also modified the multi byte string table handling. Now there is
5417 a 'global mask' which masks out certain types. The table itself
5418 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5419 is useful when for example there is only one permissible type
5420 (as in countryName) and using the mask might result in no valid
5424 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5425 SSL_get_peer_finished to allow applications to obtain the latest
5426 Finished messages sent to the peer or expected from the peer,
5427 respectively. (SSL_get_peer_finished is usually the Finished message
5428 actually received from the peer, otherwise the protocol will be aborted.)
5430 As the Finished message are message digests of the complete handshake
5431 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5432 be used for external authentication procedures when the authentication
5433 provided by SSL/TLS is not desired or is not enough.
5436 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5437 the host supports BWX extension and if Compaq C is present on the
5438 $PATH. Just exploiting of the BWX extension results in 20-30%
5439 performance kick for some algorithms, e.g. DES and RC4 to mention
5440 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5444 *) Add support for MS "fast SGC". This is arguably a violation of the
5445 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5446 weak crypto and after checking the certificate is SGC a second one
5447 with strong crypto. MS SGC stops the first handshake after receiving
5448 the server certificate message and sends a second client hello. Since
5449 a server will typically do all the time consuming operations before
5450 expecting any further messages from the client (server key exchange
5451 is the most expensive) there is little difference between the two.
5453 To get OpenSSL to support MS SGC we have to permit a second client
5454 hello message after we have sent server done. In addition we have to
5455 reset the MAC if we do get this second client hello.
5458 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5459 if a DER encoded private key is RSA or DSA traditional format. Changed
5460 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5461 format DER encoded private key. Newer code should use PKCS#8 format which
5462 has the key type encoded in the ASN1 structure. Added DER private key
5463 support to pkcs8 application.
5466 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5467 ciphersuites has been selected (as required by the SSL 3/TLS 1
5468 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5469 is set, we interpret this as a request to violate the specification
5470 (the worst that can happen is a handshake failure, and 'correct'
5471 behaviour would result in a handshake failure anyway).
5474 *) In SSL_CTX_add_session, take into account that there might be multiple
5475 SSL_SESSION structures with the same session ID (e.g. when two threads
5476 concurrently obtain them from an external cache).
5477 The internal cache can handle only one SSL_SESSION with a given ID,
5478 so if there's a conflict, we now throw out the old one to achieve
5482 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5483 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5484 some routines that use cipher OIDs: some ciphers do not have OIDs
5485 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5489 *) Simplify the trust setting structure and code. Now we just have
5490 two sequences of OIDs for trusted and rejected settings. These will
5491 typically have values the same as the extended key usage extension
5492 and any application specific purposes.
5494 The trust checking code now has a default behaviour: it will just
5495 check for an object with the same NID as the passed id. Functions can
5496 be provided to override either the default behaviour or the behaviour
5497 for a given id. SSL client, server and email already have functions
5498 in place for compatibility: they check the NID and also return "trusted"
5499 if the certificate is self signed.
5502 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5503 traditional format into an EVP_PKEY structure.
5506 *) Add a password callback function PEM_cb() which either prompts for
5507 a password if usr_data is NULL or otherwise assumes it is a null
5508 terminated password. Allow passwords to be passed on command line
5509 environment or config files in a few more utilities.
5512 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5513 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5514 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5515 Update documentation.
5518 *) Support for ASN1 "NULL" type. This could be handled before by using
5519 ASN1_TYPE but there wasn't any function that would try to read a NULL
5520 and produce an error if it couldn't. For compatibility we also have
5521 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5522 don't allocate anything because they don't need to.
5525 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5527 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5529 *) Rebuild of the memory allocation routines used by OpenSSL code and
5530 possibly others as well. The purpose is to make an interface that
5531 provide hooks so anyone can build a separate set of allocation and
5532 deallocation routines to be used by OpenSSL, for example memory
5533 pool implementations, or something else, which was previously hard
5534 since Malloc(), Realloc() and Free() were defined as macros having
5535 the values malloc, realloc and free, respectively (except for Win32
5536 compilations). The same is provided for memory debugging code.
5537 OpenSSL already comes with functionality to find memory leaks, but
5538 this gives people a chance to debug other memory problems.
5540 With these changes, a new set of functions and macros have appeared:
5542 CRYPTO_set_mem_debug_functions() [F]
5543 CRYPTO_get_mem_debug_functions() [F]
5544 CRYPTO_dbg_set_options() [F]
5545 CRYPTO_dbg_get_options() [F]
5546 CRYPTO_malloc_debug_init() [M]
5548 The memory debug functions are NULL by default, unless the library
5549 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5550 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5551 gives the standard debugging functions that come with OpenSSL) or
5552 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5553 provided by the library user) must be used. When the standard
5554 debugging functions are used, CRYPTO_dbg_set_options can be used to
5555 request additional information:
5556 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5557 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5559 Also, things like CRYPTO_set_mem_functions will always give the
5560 expected result (the new set of functions is used for allocation
5561 and deallocation) at all times, regardless of platform and compiler
5564 To finish it up, some functions that were never use in any other
5565 way than through macros have a new API and new semantic:
5568 CRYPTO_dbg_realloc()
5571 All macros of value have retained their old syntax.
5572 [Richard Levitte and Bodo Moeller]
5574 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5575 ordering of SMIMECapabilities wasn't in "strength order" and there
5576 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5580 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5581 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5582 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5584 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5585 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5586 functionality to handle multipart/signed properly) and a utility
5587 called 'smime' to call all this stuff. This is based on code I
5588 originally wrote for Celo who have kindly allowed it to be
5589 included in OpenSSL.
5592 *) Add variants des_set_key_checked and des_set_key_unchecked of
5593 des_set_key (aka des_key_sched). Global variable des_check_key
5594 decides which of these is called by des_set_key; this way
5595 des_check_key behaves as it always did, but applications and
5596 the library itself, which was buggy for des_check_key == 1,
5597 have a cleaner way to pick the version they need.
5600 *) New function PKCS12_newpass() which changes the password of a
5604 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5605 dynamic mix. In both cases the ids can be used as an index into the
5606 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5607 functions so they accept a list of the field values and the
5608 application doesn't need to directly manipulate the X509_TRUST
5612 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5616 *) Modify the way the V3 extension code looks up extensions. This now
5617 works in a similar way to the object code: we have some "standard"
5618 extensions in a static table which is searched with OBJ_bsearch()
5619 and the application can add dynamic ones if needed. The file
5620 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5621 updated whenever a new extension is added to the core code and kept
5622 in ext_nid order. There is a simple program 'tabtest.c' which checks
5623 this. New extensions are not added too often so this file can readily
5624 be maintained manually.
5626 There are two big advantages in doing things this way. The extensions
5627 can be looked up immediately and no longer need to be "added" using
5628 X509V3_add_standard_extensions(): this function now does nothing.
5629 [Side note: I get *lots* of email saying the extension code doesn't
5630 work because people forget to call this function]
5631 Also no dynamic allocation is done unless new extensions are added:
5632 so if we don't add custom extensions there is no need to call
5633 X509V3_EXT_cleanup().
5636 *) Modify enc utility's salting as follows: make salting the default. Add a
5637 magic header, so unsalted files fail gracefully instead of just decrypting
5638 to garbage. This is because not salting is a big security hole, so people
5639 should be discouraged from doing it.
5642 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5643 digest to be passed on the command line but it only used this
5644 parameter when signing a certificate. Modified so all relevant
5645 operations are affected by the digest parameter including the
5646 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5647 DSA key was used because it didn't fix the digest.
5650 *) Initial certificate chain verify code. Currently tests the untrusted
5651 certificates for consistency with the verify purpose (which is set
5652 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5654 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5655 this is because it will reject chains with invalid extensions whereas
5656 every previous version of OpenSSL and SSLeay made no checks at all.
5658 Trust code: checks the root CA for the relevant trust settings. Trust
5659 settings have an initial value consistent with the verify purpose: e.g.
5660 if the verify purpose is for SSL client use it expects the CA to be
5661 trusted for SSL client use. However the default value can be changed to
5662 permit custom trust settings: one example of this would be to only trust
5663 certificates from a specific "secure" set of CAs.
5665 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5666 which should be used for version portability: especially since the
5667 verify structure is likely to change more often now.
5669 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5670 to set them. If not set then assume SSL clients will verify SSL servers
5673 Two new options to the verify program: -untrusted allows a set of
5674 untrusted certificates to be passed in and -purpose which sets the
5675 intended purpose of the certificate. If a purpose is set then the
5676 new chain verify code is used to check extension consistency.
5679 *) Support for the authority information access extension.
5682 *) Modify RSA and DSA PEM read routines to transparently handle
5683 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5684 public keys in a format compatible with certificate
5685 SubjectPublicKeyInfo structures. Unfortunately there were already
5686 functions called *_PublicKey_* which used various odd formats so
5687 these are retained for compatibility: however the DSA variants were
5688 never in a public release so they have been deleted. Changed dsa/rsa
5689 utilities to handle the new format: note no releases ever handled public
5690 keys so we should be OK.
5692 The primary motivation for this change is to avoid the same fiasco
5693 that dogs private keys: there are several incompatible private key
5694 formats some of which are standard and some OpenSSL specific and
5695 require various evil hacks to allow partial transparent handling and
5696 even then it doesn't work with DER formats. Given the option anything
5697 other than PKCS#8 should be dumped: but the other formats have to
5698 stay in the name of compatibility.
5700 With public keys and the benefit of hindsight one standard format
5701 is used which works with EVP_PKEY, RSA or DSA structures: though
5702 it clearly returns an error if you try to read the wrong kind of key.
5704 Added a -pubkey option to the 'x509' utility to output the public key.
5705 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5706 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5707 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5708 that do the same as the EVP_PKEY_assign_*() except they up the
5709 reference count of the added key (they don't "swallow" the
5713 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5714 CRLs would fail if the file contained no certificates or no CRLs:
5715 added a new function to read in both types and return the number
5716 read: this means that if none are read it will be an error. The
5717 DER versions of the certificate and CRL reader would always fail
5718 because it isn't possible to mix certificates and CRLs in DER format
5719 without choking one or the other routine. Changed this to just read
5720 a certificate: this is the best we can do. Also modified the code
5721 in apps/verify.c to take notice of return codes: it was previously
5722 attempting to read in certificates from NULL pointers and ignoring
5723 any errors: this is one reason why the cert and CRL reader seemed
5724 to work. It doesn't check return codes from the default certificate
5725 routines: these may well fail if the certificates aren't installed.
5728 *) Code to support otherName option in GeneralName.
5731 *) First update to verify code. Change the verify utility
5732 so it warns if it is passed a self signed certificate:
5733 for consistency with the normal behaviour. X509_verify
5734 has been modified to it will now verify a self signed
5735 certificate if *exactly* the same certificate appears
5736 in the store: it was previously impossible to trust a
5737 single self signed certificate. This means that:
5738 openssl verify ss.pem
5739 now gives a warning about a self signed certificate but
5740 openssl verify -CAfile ss.pem ss.pem
5744 *) For servers, store verify_result in SSL_SESSION data structure
5745 (and add it to external session representation).
5746 This is needed when client certificate verifications fails,
5747 but an application-provided verification callback (set by
5748 SSL_CTX_set_cert_verify_callback) allows accepting the session
5749 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5750 but returns 1): When the session is reused, we have to set
5751 ssl->verify_result to the appropriate error code to avoid
5753 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5755 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5756 case in PKCS7_dataInit() where the signed PKCS7 structure
5757 didn't contain any existing data because it was being created.
5758 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5760 *) Add a salt to the key derivation routines in enc.c. This
5761 forms the first 8 bytes of the encrypted file. Also add a
5762 -S option to allow a salt to be input on the command line.
5765 *) New function X509_cmp(). Oddly enough there wasn't a function
5766 to compare two certificates. We do this by working out the SHA1
5767 hash and comparing that. X509_cmp() will be needed by the trust
5771 *) SSL_get1_session() is like SSL_get_session(), but increments
5772 the reference count in the SSL_SESSION returned.
5773 [Geoff Thorpe <geoff@eu.c2.net>]
5775 *) Fix for 'req': it was adding a null to request attributes.
5776 Also change the X509_LOOKUP and X509_INFO code to handle
5777 certificate auxiliary information.
5780 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5784 *) Add the possibility to add extra information to the memory leak
5785 detecting output, to form tracebacks, showing from where each
5786 allocation was originated: CRYPTO_push_info("constant string") adds
5787 the string plus current file name and line number to a per-thread
5788 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5789 is like calling CYRPTO_pop_info() until the stack is empty.
5790 Also updated memory leak detection code to be multi-thread-safe.
5793 *) Add options -text and -noout to pkcs7 utility and delete the
5794 encryption options which never did anything. Update docs.
5797 *) Add options to some of the utilities to allow the pass phrase
5798 to be included on either the command line (not recommended on
5799 OSes like Unix) or read from the environment. Update the
5800 manpages and fix a few bugs.
5803 *) Add a few manpages for some of the openssl commands.
5806 *) Fix the -revoke option in ca. It was freeing up memory twice,
5807 leaking and not finding already revoked certificates.
5810 *) Extensive changes to support certificate auxiliary information.
5811 This involves the use of X509_CERT_AUX structure and X509_AUX
5812 functions. An X509_AUX function such as PEM_read_X509_AUX()
5813 can still read in a certificate file in the usual way but it
5814 will also read in any additional "auxiliary information". By
5815 doing things this way a fair degree of compatibility can be
5816 retained: existing certificates can have this information added
5817 using the new 'x509' options.
5819 Current auxiliary information includes an "alias" and some trust
5820 settings. The trust settings will ultimately be used in enhanced
5821 certificate chain verification routines: currently a certificate
5822 can only be trusted if it is self signed and then it is trusted
5826 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5827 The problem was that one of the replacement routines had not been working
5828 since SSLeay releases. For now the offending routine has been replaced
5829 with non-optimised assembler. Even so, this now gives around 95%
5830 performance improvement for 1024 bit RSA signs.
5833 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5834 handling. Most clients have the effective key size in bits equal to
5835 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5836 A few however don't do this and instead use the size of the decrypted key
5837 to determine the RC2 key length and the AlgorithmIdentifier to determine
5838 the effective key length. In this case the effective key length can still
5839 be 40 bits but the key length can be 168 bits for example. This is fixed
5840 by manually forcing an RC2 key into the EVP_PKEY structure because the
5841 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5842 the key length and effective key length are equal.
5845 *) Add a bunch of functions that should simplify the creation of
5846 X509_NAME structures. Now you should be able to do:
5847 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5848 and have it automatically work out the correct field type and fill in
5849 the structures. The more adventurous can try:
5850 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5851 and it will (hopefully) work out the correct multibyte encoding.
5854 *) Change the 'req' utility to use the new field handling and multibyte
5855 copy routines. Before the DN field creation was handled in an ad hoc
5856 way in req, ca, and x509 which was rather broken and didn't support
5857 BMPStrings or UTF8Strings. Since some software doesn't implement
5858 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5859 using the dirstring_type option. See the new comment in the default
5860 openssl.cnf for more info.
5863 *) Make crypto/rand/md_rand.c more robust:
5864 - Assure unique random numbers after fork().
5865 - Make sure that concurrent threads access the global counter and
5866 md serializably so that we never lose entropy in them
5867 or use exactly the same state in multiple threads.
5868 Access to the large state is not always serializable because
5869 the additional locking could be a performance killer, and
5870 md should be large enough anyway.
5873 *) New file apps/app_rand.c with commonly needed functionality
5874 for handling the random seed file.
5876 Use the random seed file in some applications that previously did not:
5878 dsaparam -genkey (which also ignored its '-rand' option),
5881 x509 (when signing).
5882 Except on systems with /dev/urandom, it is crucial to have a random
5883 seed file at least for key creation, DSA signing, and for DH exchanges;
5884 for RSA signatures we could do without one.
5886 gendh and gendsa (unlike genrsa) used to read only the first byte
5887 of each file listed in the '-rand' option. The function as previously
5888 found in genrsa is now in app_rand.c and is used by all programs
5889 that support '-rand'.
5892 *) In RAND_write_file, use mode 0600 for creating files;
5893 don't just chmod when it may be too late.
5896 *) Report an error from X509_STORE_load_locations
5897 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5900 *) New function ASN1_mbstring_copy() this copies a string in either
5901 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5902 into an ASN1_STRING type. A mask of permissible types is passed
5903 and it chooses the "minimal" type to use or an error if not type
5907 *) Add function equivalents to the various macros in asn1.h. The old
5908 macros are retained with an M_ prefix. Code inside the library can
5909 use the M_ macros. External code (including the openssl utility)
5910 should *NOT* in order to be "shared library friendly".
5913 *) Add various functions that can check a certificate's extensions
5914 to see if it usable for various purposes such as SSL client,
5915 server or S/MIME and CAs of these types. This is currently
5916 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5917 verification. Also added a -purpose flag to x509 utility to
5918 print out all the purposes.
5921 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5925 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5926 for, obtain and decode and extension and obtain its critical flag.
5927 This allows all the necessary extension code to be handled in a
5928 single function call.
5931 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5932 platforms. See crypto/rc4/rc4_enc.c for further details.
5935 *) New -noout option to asn1parse. This causes no output to be produced
5936 its main use is when combined with -strparse and -out to extract data
5937 from a file (which may not be in ASN.1 format).
5940 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5941 when producing the local key id.
5942 [Richard Levitte <levitte@stacken.kth.se>]
5944 *) New option -dhparam in s_server. This allows a DH parameter file to be
5945 stated explicitly. If it is not stated then it tries the first server
5946 certificate file. The previous behaviour hard coded the filename
5950 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5951 a public key to be input or output. For example:
5952 openssl rsa -in key.pem -pubout -out pubkey.pem
5953 Also added necessary DSA public key functions to handle this.
5956 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5957 in the message. This was handled by allowing
5958 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5959 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5961 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5962 to the end of the strings whereas this didn't. This would cause problems
5963 if strings read with d2i_ASN1_bytes() were later modified.
5964 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5966 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5967 data and it contains EOF it will end up returning an error. This is
5968 caused by input 46 bytes long. The cause is due to the way base64
5969 BIOs find the start of base64 encoded data. They do this by trying a
5970 trial decode on each line until they find one that works. When they
5971 do a flag is set and it starts again knowing it can pass all the
5972 data directly through the decoder. Unfortunately it doesn't reset
5973 the context it uses. This means that if EOF is reached an attempt
5974 is made to pass two EOFs through the context and this causes the
5975 resulting error. This can also cause other problems as well. As is
5976 usual with these problems it takes *ages* to find and the fix is
5977 trivial: move one line.
5978 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5980 *) Ugly workaround to get s_client and s_server working under Windows. The
5981 old code wouldn't work because it needed to select() on sockets and the
5982 tty (for keypresses and to see if data could be written). Win32 only
5983 supports select() on sockets so we select() with a 1s timeout on the
5984 sockets and then see if any characters are waiting to be read, if none
5985 are present then we retry, we also assume we can always write data to
5986 the tty. This isn't nice because the code then blocks until we've
5987 received a complete line of data and it is effectively polling the
5988 keyboard at 1s intervals: however it's quite a bit better than not
5989 working at all :-) A dedicated Windows application might handle this
5990 with an event loop for example.
5993 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5994 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5995 will be called when RSA_sign() and RSA_verify() are used. This is useful
5996 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5997 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5998 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5999 This necessitated the support of an extra signature type NID_md5_sha1
6000 for SSL signatures and modifications to the SSL library to use it instead
6001 of calling RSA_public_decrypt() and RSA_private_encrypt().
6004 *) Add new -verify -CAfile and -CApath options to the crl program, these
6005 will lookup a CRL issuers certificate and verify the signature in a
6006 similar way to the verify program. Tidy up the crl program so it
6007 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6008 less strict. It will now permit CRL extensions even if it is not
6009 a V2 CRL: this will allow it to tolerate some broken CRLs.
6012 *) Initialize all non-automatic variables each time one of the openssl
6013 sub-programs is started (this is necessary as they may be started
6014 multiple times from the "OpenSSL>" prompt).
6015 [Lennart Bang, Bodo Moeller]
6017 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6018 removing all other RSA functionality (this is what NO_RSA does). This
6019 is so (for example) those in the US can disable those operations covered
6020 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6024 *) Non-copying interface to BIO pairs.
6025 (still largely untested)
6028 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6029 ASCII string. This was handled independently in various places before.
6032 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6033 UTF8 strings a character at a time.
6036 *) Use client_version from client hello to select the protocol
6037 (s23_srvr.c) and for RSA client key exchange verification
6038 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6041 *) Add various utility functions to handle SPKACs, these were previously
6042 handled by poking round in the structure internals. Added new function
6043 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6044 print, verify and generate SPKACs. Based on an original idea from
6045 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6048 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6051 *) Allow the config file extension section to be overwritten on the
6052 command line. Based on an original idea from Massimiliano Pala
6053 <madwolf@comune.modena.it>. The new option is called -extensions
6054 and can be applied to ca, req and x509. Also -reqexts to override
6055 the request extensions in req and -crlexts to override the crl extensions
6059 *) Add new feature to the SPKAC handling in ca. Now you can include
6060 the same field multiple times by preceding it by "XXXX." for example:
6063 this is the same syntax as used in the req config file.
6066 *) Allow certificate extensions to be added to certificate requests. These
6067 are specified in a 'req_extensions' option of the req section of the
6068 config file. They can be printed out with the -text option to req but
6069 are otherwise ignored at present.
6072 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6073 data read consists of only the final block it would not decrypted because
6074 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6075 A misplaced 'break' also meant the decrypted final block might not be
6076 copied until the next read.
6079 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6080 a few extra parameters to the DH structure: these will be useful if
6081 for example we want the value of 'q' or implement X9.42 DH.
6084 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6085 provides hooks that allow the default DSA functions or functions on a
6086 "per key" basis to be replaced. This allows hardware acceleration and
6087 hardware key storage to be handled without major modification to the
6088 library. Also added low level modexp hooks and CRYPTO_EX structure and
6089 associated functions.
6092 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6093 as "read only": it can't be written to and the buffer it points to will
6094 not be freed. Reading from a read only BIO is much more efficient than
6095 a normal memory BIO. This was added because there are several times when
6096 an area of memory needs to be read from a BIO. The previous method was
6097 to create a memory BIO and write the data to it, this results in two
6098 copies of the data and an O(n^2) reading algorithm. There is a new
6099 function BIO_new_mem_buf() which creates a read only memory BIO from
6100 an area of memory. Also modified the PKCS#7 routines to use read only
6104 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6105 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6106 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6107 but a retry condition occured while trying to read the rest.
6110 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6111 NID_pkcs7_encrypted by default: this was wrong since this should almost
6112 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6113 the encrypted data type: this is a more sensible place to put it and it
6114 allows the PKCS#12 code to be tidied up that duplicated this
6118 *) Changed obj_dat.pl script so it takes its input and output files on
6119 the command line. This should avoid shell escape redirection problems
6123 *) Initial support for certificate extension requests, these are included
6124 in things like Xenroll certificate requests. Included functions to allow
6125 extensions to be obtained and added.
6128 *) -crlf option to s_client and s_server for sending newlines as
6129 CRLF (as required by many protocols).
6132 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6134 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6135 [Ralf S. Engelschall]
6137 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6138 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6140 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6144 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6145 DH parameters/keys (q is lost during that conversion, but the resulting
6146 DH parameters contain its length).
6148 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6149 much faster than DH_generate_parameters (which creates parameters
6150 where p = 2*q + 1), and also the smaller q makes DH computations
6151 much more efficient (160-bit exponentiation instead of 1024-bit
6152 exponentiation); so this provides a convenient way to support DHE
6153 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6154 utter importance to use
6155 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6157 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6158 when such DH parameters are used, because otherwise small subgroup
6159 attacks may become possible!
6162 *) Avoid memory leak in i2d_DHparams.
6165 *) Allow the -k option to be used more than once in the enc program:
6166 this allows the same encrypted message to be read by multiple recipients.
6169 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6170 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6171 it will always use the numerical form of the OID, even if it has a short
6175 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6176 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6177 otherwise bn_mod_exp was called. In the case of hardware keys for example
6178 no private key components need be present and it might store extra data
6179 in the RSA structure, which cannot be accessed from bn_mod_exp.
6180 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6181 private key operations.
6184 *) Added support for SPARC Linux.
6187 *) pem_password_cb function type incompatibly changed from
6188 typedef int pem_password_cb(char *buf, int size, int rwflag);
6190 ....(char *buf, int size, int rwflag, void *userdata);
6191 so that applications can pass data to their callbacks:
6192 The PEM[_ASN1]_{read,write}... functions and macros now take an
6193 additional void * argument, which is just handed through whenever
6194 the password callback is called.
6195 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6197 New function SSL_CTX_set_default_passwd_cb_userdata.
6199 Compatibility note: As many C implementations push function arguments
6200 onto the stack in reverse order, the new library version is likely to
6201 interoperate with programs that have been compiled with the old
6202 pem_password_cb definition (PEM_whatever takes some data that
6203 happens to be on the stack as its last argument, and the callback
6204 just ignores this garbage); but there is no guarantee whatsoever that
6207 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6208 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6209 problems not only on Windows, but also on some Unix platforms.
6210 To avoid problematic command lines, these definitions are now in an
6211 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6212 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6215 *) MIPS III/IV assembler module is reimplemented.
6218 *) More DES library cleanups: remove references to srand/rand and
6219 delete an unused file.
6222 *) Add support for the the free Netwide assembler (NASM) under Win32,
6223 since not many people have MASM (ml) and it can be hard to obtain.
6224 This is currently experimental but it seems to work OK and pass all
6225 the tests. Check out INSTALL.W32 for info.
6228 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6229 without temporary keys kept an extra copy of the server key,
6230 and connections with temporary keys did not free everything in case
6234 *) New function RSA_check_key and new openssl rsa option -check
6235 for verifying the consistency of RSA keys.
6236 [Ulf Moeller, Bodo Moeller]
6238 *) Various changes to make Win32 compile work:
6239 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6240 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6241 comparison" warnings.
6242 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6245 *) Add a debugging option to PKCS#5 v2 key generation function: when
6246 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6247 derived keys are printed to stderr.
6250 *) Copy the flags in ASN1_STRING_dup().
6251 [Roman E. Pavlov <pre@mo.msk.ru>]
6253 *) The x509 application mishandled signing requests containing DSA
6254 keys when the signing key was also DSA and the parameters didn't match.
6256 It was supposed to omit the parameters when they matched the signing key:
6257 the verifying software was then supposed to automatically use the CA's
6258 parameters if they were absent from the end user certificate.
6260 Omitting parameters is no longer recommended. The test was also
6261 the wrong way round! This was probably due to unusual behaviour in
6262 EVP_cmp_parameters() which returns 1 if the parameters match.
6263 This meant that parameters were omitted when they *didn't* match and
6264 the certificate was useless. Certificates signed with 'ca' didn't have
6266 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6268 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6269 The interface is as follows:
6270 Applications can use
6271 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6272 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6273 "off" is now the default.
6274 The library internally uses
6275 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6276 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6277 to disable memory-checking temporarily.
6279 Some inconsistent states that previously were possible (and were
6280 even the default) are now avoided.
6282 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6283 with each memory chunk allocated; this is occasionally more helpful
6284 than just having a counter.
6286 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6288 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6292 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6293 which largely parallels "options", but is for changing API behaviour,
6294 whereas "options" are about protocol behaviour.
6295 Initial "mode" flags are:
6297 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6298 a single record has been written.
6299 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6300 retries use the same buffer location.
6301 (But all of the contents must be
6305 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6308 *) Fix problems with no-hmac etc.
6309 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6311 *) New functions RSA_get_default_method(), RSA_set_method() and
6312 RSA_get_method(). These allows replacement of RSA_METHODs without having
6313 to mess around with the internals of an RSA structure.
6316 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6317 Also really enable memory leak checks in openssl.c and in some
6319 [Chad C. Mulligan, Bodo Moeller]
6321 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6322 up the length of negative integers. This has now been simplified to just
6323 store the length when it is first determined and use it later, rather
6324 than trying to keep track of where data is copied and updating it to
6326 [Steve Henson, reported by Brien Wheeler
6327 <bwheeler@authentica-security.com>]
6329 *) Add a new function PKCS7_signatureVerify. This allows the verification
6330 of a PKCS#7 signature but with the signing certificate passed to the
6331 function itself. This contrasts with PKCS7_dataVerify which assumes the
6332 certificate is present in the PKCS#7 structure. This isn't always the
6333 case: certificates can be omitted from a PKCS#7 structure and be
6334 distributed by "out of band" means (such as a certificate database).
6337 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6338 function prototypes in pem.h, also change util/mkdef.pl to add the
6339 necessary function names.
6342 *) mk1mf.pl (used by Windows builds) did not properly read the
6343 options set by Configure in the top level Makefile, and Configure
6344 was not even able to write more than one option correctly.
6345 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6348 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6349 file to be loaded from a BIO or FILE pointer. The BIO version will
6350 for example allow memory BIOs to contain config info.
6353 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6354 Whoever hopes to achieve shared-library compatibility across versions
6355 must use this, not the compile-time macro.
6356 (Exercise 0.9.4: Which is the minimum library version required by
6358 Note: All this applies only to multi-threaded programs, others don't
6362 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6363 through a BIO pair triggered the default case, i.e.
6364 SSLerr(...,SSL_R_UNKNOWN_STATE).
6367 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6368 can use the SSL library even if none of the specific BIOs is
6372 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6373 for the encoded length.
6374 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6376 *) Add initial documentation of the X509V3 functions.
6379 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6380 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6381 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6382 secure PKCS#8 private key format with a high iteration count.
6385 *) Fix determination of Perl interpreter: A perl or perl5
6386 _directory_ in $PATH was also accepted as the interpreter.
6387 [Ralf S. Engelschall]
6389 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6390 wrong with it but it was very old and did things like calling
6391 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6395 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6396 to use the new extension code.
6399 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6400 with macros. This should make it easier to change their form, add extra
6401 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6405 *) Add to configuration table a new entry that can specify an alternative
6406 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6407 according to Mark Crispin <MRC@Panda.COM>.
6411 *) DES CBC did not update the IV. Weird.
6414 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6415 Changing the behaviour of the former might break existing programs --
6416 where IV updating is needed, des_ncbc_encrypt can be used.
6419 *) When bntest is run from "make test" it drives bc to check its
6420 calculations, as well as internally checking them. If an internal check
6421 fails, it needs to cause bc to give a non-zero result or make test carries
6422 on without noticing the failure. Fixed.
6425 *) DES library cleanups.
6428 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6429 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6430 ciphers. NOTE: although the key derivation function has been verified
6431 against some published test vectors it has not been extensively tested
6432 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6436 *) Instead of "mkdir -p", which is not fully portable, use new
6437 Perl script "util/mkdir-p.pl".
6440 *) Rewrite the way password based encryption (PBE) is handled. It used to
6441 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6442 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6443 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6444 the 'parameter' field of the AlgorithmIdentifier is passed to the
6445 underlying key generation function so it must do its own ASN1 parsing.
6446 This has also changed the EVP_PBE_CipherInit() function which now has a
6447 'parameter' argument instead of literal salt and iteration count values
6448 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6451 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6452 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6453 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6454 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6455 value was just used as a "magic string" and not used directly its
6456 value doesn't matter.
6459 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6463 *) "linux-sparc64" configuration (ultrapenguin).
6464 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6465 "linux-sparc" configuration.
6466 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6468 *) config now generates no-xxx options for missing ciphers.
6471 *) Support the EBCDIC character set (work in progress).
6472 File ebcdic.c not yet included because it has a different license.
6473 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6475 *) Support BS2000/OSD-POSIX.
6476 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6478 *) Make callbacks for key generation use void * instead of char *.
6481 *) Make S/MIME samples compile (not yet tested).
6484 *) Additional typesafe stacks.
6487 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6491 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6493 *) New configuration variant "sco5-gcc".
6495 *) Updated some demos.
6496 [Sean O Riordain, Wade Scholine]
6498 *) Add missing BIO_free at exit of pkcs12 application.
6501 *) Fix memory leak in conf.c.
6504 *) Updates for Win32 to assembler version of MD5.
6507 *) Set #! path to perl in apps/der_chop to where we found it
6508 instead of using a fixed path.
6511 *) SHA library changes for irix64-mips4-cc.
6514 *) Improvements for VMS support.
6518 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6520 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6521 This also avoids the problems with SC4.2 and unpatched SC5.
6522 [Andy Polyakov <appro@fy.chalmers.se>]
6524 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6525 These are required because of the typesafe stack would otherwise break
6526 existing code. If old code used a structure member which used to be STACK
6527 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6528 sk_num or sk_value it would produce an error because the num, data members
6529 are not present in STACK_OF. Now it just produces a warning. sk_set
6530 replaces the old method of assigning a value to sk_value
6531 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6532 that does this will no longer work (and should use sk_set instead) but
6533 this could be regarded as a "questionable" behaviour anyway.
6536 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6537 correctly handle encrypted S/MIME data.
6540 *) Change type of various DES function arguments from des_cblock
6541 (which means, in function argument declarations, pointer to char)
6542 to des_cblock * (meaning pointer to array with 8 char elements),
6543 which allows the compiler to do more typechecking; it was like
6544 that back in SSLeay, but with lots of ugly casts.
6546 Introduce new type const_des_cblock.
6549 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6550 problems: find RecipientInfo structure that matches recipient certificate
6551 and initialise the ASN1 structures properly based on passed cipher.
6554 *) Belatedly make the BN tests actually check the results.
6557 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6558 to and from BNs: it was completely broken. New compilation option
6559 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6560 key elements as negative integers.
6563 *) Reorganize and speed up MD5.
6564 [Andy Polyakov <appro@fy.chalmers.se>]
6567 [Richard Levitte <richard@levitte.org>]
6569 *) New option -out to asn1parse to allow the parsed structure to be
6570 output to a file. This is most useful when combined with the -strparse
6571 option to examine the output of things like OCTET STRINGS.
6574 *) Make SSL library a little more fool-proof by not requiring any longer
6575 that SSL_set_{accept,connect}_state be called before
6576 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6577 in many applications because usually everything *appeared* to work as
6578 intended anyway -- now it really works as intended).
6581 *) Move openssl.cnf out of lib/.
6584 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6585 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6586 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6587 [Ralf S. Engelschall]
6589 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6590 handle PKCS#7 enveloped data properly.
6591 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6593 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6594 copying pointers. The cert_st handling is changed by this in
6595 various ways (and thus what used to be known as ctx->default_cert
6596 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6597 any longer when s->cert does not give us what we need).
6598 ssl_cert_instantiate becomes obsolete by this change.
6599 As soon as we've got the new code right (possibly it already is?),
6600 we have solved a couple of bugs of the earlier code where s->cert
6601 was used as if it could not have been shared with other SSL structures.
6603 Note that using the SSL API in certain dirty ways now will result
6604 in different behaviour than observed with earlier library versions:
6605 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6606 does not influence s as it used to.
6608 In order to clean up things more thoroughly, inside SSL_SESSION
6609 we don't use CERT any longer, but a new structure SESS_CERT
6610 that holds per-session data (if available); currently, this is
6611 the peer's certificate chain and, for clients, the server's certificate
6612 and temporary key. CERT holds only those values that can have
6613 meaningful defaults in an SSL_CTX.
6616 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6617 from the internal representation. Various PKCS#7 fixes: remove some
6618 evil casts and set the enc_dig_alg field properly based on the signing
6622 *) Allow PKCS#12 password to be set from the command line or the
6623 environment. Let 'ca' get its config file name from the environment
6624 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6628 *) Allow certificate policies extension to use an IA5STRING for the
6629 organization field. This is contrary to the PKIX definition but
6630 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6634 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6635 without disallowing inline assembler and the like for non-pedantic builds.
6638 *) Support Borland C++ builder.
6639 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6644 *) SHA-1 cleanups and performance enhancements.
6645 [Andy Polyakov <appro@fy.chalmers.se>]
6647 *) Sparc v8plus assembler for the bignum library.
6648 [Andy Polyakov <appro@fy.chalmers.se>]
6650 *) Accept any -xxx and +xxx compiler options in Configure.
6653 *) Update HPUX configuration.
6656 *) Add missing sk_<type>_unshift() function to safestack.h
6657 [Ralf S. Engelschall]
6659 *) New function SSL_CTX_use_certificate_chain_file that sets the
6660 "extra_cert"s in addition to the certificate. (This makes sense
6661 only for "PEM" format files, as chains as a whole are not
6665 *) Support verify_depth from the SSL API.
6666 x509_vfy.c had what can be considered an off-by-one-error:
6667 Its depth (which was not part of the external interface)
6668 was actually counting the number of certificates in a chain;
6669 now it really counts the depth.
6672 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6673 instead of X509err, which often resulted in confusing error
6674 messages since the error codes are not globally unique
6675 (e.g. an alleged error in ssl3_accept when a certificate
6676 didn't match the private key).
6678 *) New function SSL_CTX_set_session_id_context that allows to set a default
6679 value (so that you don't need SSL_set_session_id_context for each
6680 connection using the SSL_CTX).
6683 *) OAEP decoding bug fix.
6686 *) Support INSTALL_PREFIX for package builders, as proposed by
6690 *) New Configure options "threads" and "no-threads". For systems
6691 where the proper compiler options are known (currently Solaris
6692 and Linux), "threads" is the default.
6695 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6698 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6699 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6700 such as /usr/local/bin.
6703 *) "make linux-shared" to build shared libraries.
6704 [Niels Poppe <niels@netbox.org>]
6706 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6709 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6710 extension adding in x509 utility.
6713 *) Remove NOPROTO sections and error code comments.
6716 *) Partial rewrite of the DEF file generator to now parse the ANSI
6720 *) New Configure options --prefix=DIR and --openssldir=DIR.
6723 *) Complete rewrite of the error code script(s). It is all now handled
6724 by one script at the top level which handles error code gathering,
6725 header rewriting and C source file generation. It should be much better
6726 than the old method: it now uses a modified version of Ulf's parser to
6727 read the ANSI prototypes in all header files (thus the old K&R definitions
6728 aren't needed for error creation any more) and do a better job of
6729 translating function codes into names. The old 'ASN1 error code imbedded
6730 in a comment' is no longer necessary and it doesn't use .err files which
6731 have now been deleted. Also the error code call doesn't have to appear all
6732 on one line (which resulted in some large lines...).
6735 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6738 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6739 0 (which usually indicates a closed connection), but continue reading.
6742 *) Fix some race conditions.
6745 *) Add support for CRL distribution points extension. Add Certificate
6746 Policies and CRL distribution points documentation.
6749 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6752 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6753 8 of keying material. Merlin has also confirmed interop with this fix
6754 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6755 [Merlin Hughes <merlin@baltimore.ie>]
6757 *) Fix lots of warnings.
6758 [Richard Levitte <levitte@stacken.kth.se>]
6760 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6761 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6762 [Richard Levitte <levitte@stacken.kth.se>]
6764 *) Fix problems with sizeof(long) == 8.
6765 [Andy Polyakov <appro@fy.chalmers.se>]
6767 *) Change functions to ANSI C.
6770 *) Fix typos in error codes.
6771 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6773 *) Remove defunct assembler files from Configure.
6776 *) SPARC v8 assembler BIGNUM implementation.
6777 [Andy Polyakov <appro@fy.chalmers.se>]
6779 *) Support for Certificate Policies extension: both print and set.
6780 Various additions to support the r2i method this uses.
6783 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6784 return a const string when you are expecting an allocated buffer.
6787 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6788 types DirectoryString and DisplayText.
6791 *) Add code to allow r2i extensions to access the configuration database,
6792 add an LHASH database driver and add several ctx helper functions.
6795 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6796 fail when they extended the size of a BIGNUM.
6799 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6800 support typesafe stack.
6803 *) Fix typo in SSL_[gs]et_options().
6804 [Nils Frostberg <nils@medcom.se>]
6806 *) Delete various functions and files that belonged to the (now obsolete)
6807 old X509V3 handling code.
6810 *) New Configure option "rsaref".
6813 *) Don't auto-generate pem.h.
6816 *) Introduce type-safe ASN.1 SETs.
6819 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6820 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6822 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6823 that links with OpenSSL (well at least cause lots of warnings), but fear
6824 not: the conversion is trivial, and it eliminates loads of evil casts. A
6825 few STACKed things have been converted already. Feel free to convert more.
6826 In the fullness of time, I'll do away with the STACK type altogether.
6829 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6830 specified in <certfile> by updating the entry in the index.txt file.
6831 This way one no longer has to edit the index.txt file manually for
6832 revoking a certificate. The -revoke option does the gory details now.
6833 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6835 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6836 `-text' option at all and this way the `-noout -text' combination was
6837 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6838 [Ralf S. Engelschall]
6840 *) Make sure a corresponding plain text error message exists for the
6841 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6842 verify callback function determined that a certificate was revoked.
6843 [Ralf S. Engelschall]
6845 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6846 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6847 all available cipers including rc5, which was forgotten until now.
6848 In order to let the testing shell script know which algorithms
6849 are available, a new (up to now undocumented) command
6850 "openssl list-cipher-commands" is used.
6853 *) Bugfix: s_client occasionally would sleep in select() when
6854 it should have checked SSL_pending() first.
6857 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6858 the raw DSA values prior to ASN.1 encoding.
6861 *) Tweaks to Configure
6862 [Niels Poppe <niels@netbox.org>]
6864 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6868 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6871 *) New config option to avoid instructions that are illegal on the 80386.
6872 The default code is faster, but requires at least a 486.
6875 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6876 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6877 same as SSL2_VERSION anyway.
6880 *) New "-showcerts" option for s_client.
6883 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6884 application. Various cleanups and fixes.
6887 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6888 modify error routines to work internally. Add error codes and PBE init
6889 to library startup routines.
6892 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6893 packing functions to asn1 and evp. Changed function names and error
6894 codes along the way.
6897 *) PKCS12 integration: and so it begins... First of several patches to
6898 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6899 objects to objects.h
6902 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6903 and display support for Thawte strong extranet extension.
6906 *) Add LinuxPPC support.
6907 [Jeff Dubrule <igor@pobox.org>]
6909 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6910 bn_div_words in alpha.s.
6911 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6913 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6914 OAEP isn't supported when OpenSSL is built with RSAref.
6915 [Ulf Moeller <ulf@fitug.de>]
6917 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6918 so they no longer are missing under -DNOPROTO.
6919 [Soren S. Jorvang <soren@t.dk>]
6922 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6924 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6925 doesn't work when the session is reused. Coming soon!
6928 *) Fix a security hole, that allows sessions to be reused in the wrong
6929 context thus bypassing client cert protection! All software that uses
6930 client certs and session caches in multiple contexts NEEDS PATCHING to
6931 allow session reuse! A fuller solution is in the works.
6932 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6934 *) Some more source tree cleanups (removed obsolete files
6935 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6936 permission on "config" script to be executable) and a fix for the INSTALL
6938 [Ulf Moeller <ulf@fitug.de>]
6940 *) Remove some legacy and erroneous uses of malloc, free instead of
6942 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6944 *) Make rsa_oaep_test return non-zero on error.
6945 [Ulf Moeller <ulf@fitug.de>]
6947 *) Add support for native Solaris shared libraries. Configure
6948 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6949 if someone would make that last step automatic.
6950 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6952 *) ctx_size was not built with the right compiler during "make links". Fixed.
6955 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6956 except NULL ciphers". This means the default cipher list will no longer
6957 enable NULL ciphers. They need to be specifically enabled e.g. with
6958 the string "DEFAULT:eNULL".
6961 *) Fix to RSA private encryption routines: if p < q then it would
6962 occasionally produce an invalid result. This will only happen with
6963 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6966 *) Be less restrictive and allow also `perl util/perlpath.pl
6967 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6968 because this way one can also use an interpreter named `perl5' (which is
6969 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6970 installed as `perl').
6971 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6973 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6974 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6976 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6977 advapi32.lib to Win32 build and change the pem test comparision
6978 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6979 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6980 and crypto/des/ede_cbcm_enc.c.
6983 *) DES quad checksum was broken on big-endian architectures. Fixed.
6986 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6987 Win32 test batch file so it (might) work again. The Win32 test batch file
6988 is horrible: I feel ill....
6991 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6992 in e_os.h. Audit of header files to check ANSI and non ANSI
6993 sections: 10 functions were absent from non ANSI section and not exported
6994 from Windows DLLs. Fixed up libeay.num for new functions.
6997 *) Make `openssl version' output lines consistent.
6998 [Ralf S. Engelschall]
7000 *) Fix Win32 symbol export lists for BIO functions: Added
7001 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7002 to ms/libeay{16,32}.def.
7003 [Ralf S. Engelschall]
7005 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7006 fine under Unix and passes some trivial tests I've now added. But the
7007 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7008 added to make sure no one expects that this stuff really works in the
7009 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7010 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7012 [Ralf S. Engelschall]
7014 *) Fix the generation of two part addresses in perl.
7015 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7017 *) Add config entry for Linux on MIPS.
7018 [John Tobey <jtobey@channel1.com>]
7020 *) Make links whenever Configure is run, unless we are on Windoze.
7023 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7024 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7028 *) Add a useful kludge to allow package maintainers to specify compiler and
7029 other platforms details on the command line without having to patch the
7030 Configure script everytime: One now can use ``perl Configure
7031 <id>:<details>'', i.e. platform ids are allowed to have details appended
7032 to them (seperated by colons). This is treated as there would be a static
7033 pre-configured entry in Configure's %table under key <id> with value
7034 <details> and ``perl Configure <id>'' is called. So, when you want to
7035 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7036 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7037 now, which overrides the FreeBSD-elf entry on-the-fly.
7038 [Ralf S. Engelschall]
7040 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7043 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7044 on the `perl Configure ...' command line. This way one can compile
7045 OpenSSL libraries with Position Independent Code (PIC) which is needed
7046 for linking it into DSOs.
7047 [Ralf S. Engelschall]
7049 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7053 *) Cleaned up the LICENSE document: The official contact for any license
7054 questions now is the OpenSSL core team under openssl-core@openssl.org.
7055 And add a paragraph about the dual-license situation to make sure people
7056 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7057 to the OpenSSL toolkit.
7058 [Ralf S. Engelschall]
7060 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7061 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7062 Additonally cleaned up the `make links' target: Remove unnecessary
7063 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7064 to speed processing and no longer clutter the display with confusing
7065 stuff. Instead only the actually done links are displayed.
7066 [Ralf S. Engelschall]
7068 *) Permit null encryption ciphersuites, used for authentication only. It used
7069 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7070 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7074 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7075 signed attributes when verifying signatures (this would break them),
7076 the detached data encoding was wrong and public keys obtained using
7077 X509_get_pubkey() weren't freed.
7080 *) Add text documentation for the BUFFER functions. Also added a work around
7081 to a Win95 console bug. This was triggered by the password read stuff: the
7082 last character typed gets carried over to the next fread(). If you were
7083 generating a new cert request using 'req' for example then the last
7084 character of the passphrase would be CR which would then enter the first
7088 *) Added the new `Includes OpenSSL Cryptography Software' button as
7089 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7090 button and can be used by applications based on OpenSSL to show the
7091 relationship to the OpenSSL project.
7092 [Ralf S. Engelschall]
7094 *) Remove confusing variables in function signatures in files
7095 ssl/ssl_lib.c and ssl/ssl.h.
7096 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7098 *) Don't install bss_file.c under PREFIX/include/
7099 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7101 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7102 functions that return function pointers and has support for NT specific
7103 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7104 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7105 unsigned to signed types: this was killing the Win32 compile.
7108 *) Add new certificate file to stack functions,
7109 SSL_add_dir_cert_subjects_to_stack() and
7110 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7111 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7112 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7113 This means that Apache-SSL and similar packages don't have to mess around
7114 to add as many CAs as they want to the preferred list.
7117 *) Experiment with doxygen documentation. Currently only partially applied to
7119 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7120 openssl.doxy as the configuration file.
7123 *) Get rid of remaining C++-style comments which strict C compilers hate.
7124 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7126 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7127 compiled in by default: it has problems with large keys.
7130 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7131 DH private keys and/or callback functions which directly correspond to
7132 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7133 is needed for applications which have to configure certificates on a
7134 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7136 For the RSA certificate situation is makes no difference, but
7137 for the DSA certificate situation this fixes the "no shared cipher"
7138 problem where the OpenSSL cipher selection procedure failed because the
7139 temporary keys were not overtaken from the context and the API provided
7140 no way to reconfigure them.
7141 The new functions now let applications reconfigure the stuff and they
7142 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7143 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7144 non-public-API function ssl_cert_instantiate() is used as a helper
7145 function and also to reduce code redundancy inside ssl_rsa.c.
7146 [Ralf S. Engelschall]
7148 *) Move s_server -dcert and -dkey options out of the undocumented feature
7149 area because they are useful for the DSA situation and should be
7150 recognized by the users.
7151 [Ralf S. Engelschall]
7153 *) Fix the cipher decision scheme for export ciphers: the export bits are
7154 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7155 SSL_EXP_MASK. So, the original variable has to be used instead of the
7156 already masked variable.
7157 [Richard Levitte <levitte@stacken.kth.se>]
7159 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7160 [Richard Levitte <levitte@stacken.kth.se>]
7162 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7163 from `int' to `unsigned int' because it's a length and initialized by
7164 EVP_DigestFinal() which expects an `unsigned int *'.
7165 [Richard Levitte <levitte@stacken.kth.se>]
7167 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7168 script. Instead use the usual Shell->Perl transition trick.
7169 [Ralf S. Engelschall]
7171 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7172 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7173 -noout -modulus' as it's already the case for `openssl rsa -noout
7174 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7175 currently the public key is printed (a decision which was already done by
7176 `openssl dsa -modulus' in the past) which serves a similar purpose.
7177 Additionally the NO_RSA no longer completely removes the whole -modulus
7178 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7180 [Ralf S. Engelschall]
7182 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7183 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7184 [Arne Ansper <arne@ats.cyber.ee>]
7186 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7187 to be added. Now both 'req' and 'ca' can use new objects defined in the
7191 *) Add cool BIO that does syslog (or event log on NT).
7192 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7194 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7195 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7196 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7197 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7200 *) Add preliminary config info for new extension code.
7203 *) Make RSA_NO_PADDING really use no padding.
7204 [Ulf Moeller <ulf@fitug.de>]
7206 *) Generate errors when private/public key check is done.
7209 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7210 for some CRL extensions and new objects added.
7213 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7214 key usage extension and fuller support for authority key id.
7217 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7218 padding method for RSA, which is recommended for new applications in PKCS
7219 #1 v2.0 (RFC 2437, October 1998).
7220 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7221 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7222 against Bleichbacher's attack on RSA.
7223 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7226 *) Updates to the new SSL compression code
7227 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7229 *) Fix so that the version number in the master secret, when passed
7230 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7231 (because the server will not accept higher), that the version number
7232 is 0x03,0x01, not 0x03,0x00
7233 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7235 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7236 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7237 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7240 *) Support for RAW extensions where an arbitrary extension can be
7241 created by including its DER encoding. See apps/openssl.cnf for
7245 *) Make sure latest Perl versions don't interpret some generated C array
7246 code as Perl array code in the crypto/err/err_genc.pl script.
7247 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7249 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7250 not many people have the assembler. Various Win32 compilation fixes and
7251 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7255 *) Modify configure script 'Configure' to automatically create crypto/date.h
7256 file under Win32 and also build pem.h from pem.org. New script
7257 util/mkfiles.pl to create the MINFO file on environments that can't do a
7258 'make files': perl util/mkfiles.pl >MINFO should work.
7261 *) Major rework of DES function declarations, in the pursuit of correctness
7262 and purity. As a result, many evil casts evaporated, and some weirdness,
7263 too. You may find this causes warnings in your code. Zapping your evil
7264 casts will probably fix them. Mostly.
7267 *) Fix for a typo in asn1.h. Bug fix to object creation script
7268 obj_dat.pl. It considered a zero in an object definition to mean
7269 "end of object": none of the objects in objects.h have any zeros
7270 so it wasn't spotted.
7271 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7273 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7274 Masking (CBCM). In the absence of test vectors, the best I have been able
7275 to do is check that the decrypt undoes the encrypt, so far. Send me test
7276 vectors if you have them.
7279 *) Correct calculation of key length for export ciphers (too much space was
7280 allocated for null ciphers). This has not been tested!
7283 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7284 message is now correct (it understands "crypto" and "ssl" on its
7285 command line). There is also now an "update" option. This will update
7286 the util/ssleay.num and util/libeay.num files with any new functions.
7288 perl util/mkdef.pl crypto ssl update
7289 it will update them.
7292 *) Overhauled the Perl interface (perl/*):
7293 - ported BN stuff to OpenSSL's different BN library
7294 - made the perl/ source tree CVS-aware
7295 - renamed the package from SSLeay to OpenSSL (the files still contain
7296 their history because I've copied them in the repository)
7297 - removed obsolete files (the test scripts will be replaced
7298 by better Test::Harness variants in the future)
7299 [Ralf S. Engelschall]
7301 *) First cut for a very conservative source tree cleanup:
7302 1. merge various obsolete readme texts into doc/ssleay.txt
7303 where we collect the old documents and readme texts.
7304 2. remove the first part of files where I'm already sure that we no
7305 longer need them because of three reasons: either they are just temporary
7306 files which were left by Eric or they are preserved original files where
7307 I've verified that the diff is also available in the CVS via "cvs diff
7308 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7309 the crypto/md/ stuff).
7310 [Ralf S. Engelschall]
7312 *) More extension code. Incomplete support for subject and issuer alt
7313 name, issuer and authority key id. Change the i2v function parameters
7314 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7315 what that's for :-) Fix to ASN1 macro which messed up
7316 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7319 *) Preliminary support for ENUMERATED type. This is largely copied from the
7323 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7324 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7326 *) Make sure `make rehash' target really finds the `openssl' program.
7327 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7329 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7330 like to hear about it if this slows down other processors.
7333 *) Add CygWin32 platform information to Configure script.
7334 [Alan Batie <batie@aahz.jf.intel.com>]
7336 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7337 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7339 *) New program nseq to manipulate netscape certificate sequences
7342 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7346 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7347 but the BN code had some problems that would cause failures when
7348 doing certificate verification and some other functions.
7349 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7351 *) Add ASN1 and PEM code to support netscape certificate sequences.
7354 *) Add ASN1 and PEM code to support netscape certificate sequences.
7357 *) Add several PKIX and private extended key usage OIDs.
7360 *) Modify the 'ca' program to handle the new extension code. Modify
7361 openssl.cnf for new extension format, add comments.
7364 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7365 and add a sample to openssl.cnf so req -x509 now adds appropriate
7369 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7370 error code, add initial support to X509_print() and x509 application.
7373 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7374 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7375 stuff is currently isolated and isn't even compiled yet.
7378 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7379 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7380 Removed the versions check from X509 routines when loading extensions:
7381 this allows certain broken certificates that don't set the version
7382 properly to be processed.
7385 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7386 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7387 can still be regenerated with "make depend".
7390 *) Spelling mistake in C version of CAST-128.
7391 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7393 *) Changes to the error generation code. The perl script err-code.pl
7394 now reads in the old error codes and retains the old numbers, only
7395 adding new ones if necessary. It also only changes the .err files if new
7396 codes are added. The makefiles have been modified to only insert errors
7397 when needed (to avoid needlessly modifying header files). This is done
7398 by only inserting errors if the .err file is newer than the auto generated
7399 C file. To rebuild all the error codes from scratch (the old behaviour)
7400 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7401 or delete all the .err files.
7404 *) CAST-128 was incorrectly implemented for short keys. The C version has
7405 been fixed, but is untested. The assembler versions are also fixed, but
7406 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7407 to regenerate it if needed.
7408 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7409 Hagino <itojun@kame.net>]
7411 *) File was opened incorrectly in randfile.c.
7412 [Ulf Möller <ulf@fitug.de>]
7414 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7415 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7416 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7417 al: it's just almost always a UTCTime. Note this patch adds new error
7418 codes so do a "make errors" if there are problems.
7421 *) Correct Linux 1 recognition in config.
7422 [Ulf Möller <ulf@fitug.de>]
7424 *) Remove pointless MD5 hash when using DSA keys in ca.
7425 [Anonymous <nobody@replay.com>]
7427 *) Generate an error if given an empty string as a cert directory. Also
7428 generate an error if handed NULL (previously returned 0 to indicate an
7429 error, but didn't set one).
7430 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7432 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7435 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7436 parameters. This was causing a warning which killed off the Win32 compile.
7439 *) Remove C++ style comments from crypto/bn/bn_local.h.
7440 [Neil Costigan <neil.costigan@celocom.com>]
7442 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7443 based on a text string, looking up short and long names and finally
7444 "dot" format. The "dot" format stuff didn't work. Added new function
7445 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7446 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7447 OID is not part of the table.
7450 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7451 X509_LOOKUP_by_alias().
7454 *) Sort openssl functions by name.
7457 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7458 encryption from sample DSA keys (in case anyone is interested the password
7462 *) Make _all_ *_free functions accept a NULL pointer.
7463 [Frans Heymans <fheymans@isaserver.be>]
7465 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7467 [Anonymous <nobody@replay.com>]
7469 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7470 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7472 *) Don't blow it for numeric -newkey arguments to apps/req.
7473 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7475 *) Temp key "for export" tests were wrong in s3_srvr.c.
7476 [Anonymous <nobody@replay.com>]
7478 *) Add prototype for temp key callback functions
7479 SSL_CTX_set_tmp_{rsa,dh}_callback().
7482 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7483 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7486 *) X509_name_add_entry() freed the wrong thing after an error.
7487 [Arne Ansper <arne@ats.cyber.ee>]
7489 *) rsa_eay.c would attempt to free a NULL context.
7490 [Arne Ansper <arne@ats.cyber.ee>]
7492 *) BIO_s_socket() had a broken should_retry() on Windoze.
7493 [Arne Ansper <arne@ats.cyber.ee>]
7495 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7496 [Arne Ansper <arne@ats.cyber.ee>]
7498 *) Make sure the already existing X509_STORE->depth variable is initialized
7499 in X509_STORE_new(), but document the fact that this variable is still
7500 unused in the certificate verification process.
7501 [Ralf S. Engelschall]
7503 *) Fix the various library and apps files to free up pkeys obtained from
7504 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7507 *) Fix reference counting in X509_PUBKEY_get(). This makes
7508 demos/maurice/example2.c work, amongst others, probably.
7509 [Steve Henson and Ben Laurie]
7511 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7512 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7513 are no longer created. This way we have a single and consistent command
7514 line interface `openssl <command>', similar to `cvs <command>'.
7515 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7517 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7518 BIT STRING wrapper always have zero unused bits.
7521 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7524 *) Make the top-level INSTALL documentation easier to understand.
7527 *) Makefiles updated to exit if an error occurs in a sub-directory
7528 make (including if user presses ^C) [Paul Sutton]
7530 *) Make Montgomery context stuff explicit in RSA data structure.
7533 *) Fix build order of pem and err to allow for generated pem.h.
7536 *) Fix renumbering bug in X509_NAME_delete_entry().
7539 *) Enhanced the err-ins.pl script so it makes the error library number
7540 global and can add a library name. This is needed for external ASN1 and
7541 other error libraries.
7544 *) Fixed sk_insert which never worked properly.
7547 *) Fix ASN1 macros so they can handle indefinite length construted
7548 EXPLICIT tags. Some non standard certificates use these: they can now
7552 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7553 into a single doc/ssleay.txt bundle. This way the information is still
7554 preserved but no longer messes up this directory. Now it's new room for
7555 the new set of documenation files.
7556 [Ralf S. Engelschall]
7558 *) SETs were incorrectly DER encoded. This was a major pain, because they
7559 shared code with SEQUENCEs, which aren't coded the same. This means that
7560 almost everything to do with SETs or SEQUENCEs has either changed name or
7561 number of arguments.
7562 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7564 *) Fix test data to work with the above.
7567 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7568 was already fixed by Eric for 0.9.1 it seems.
7569 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7571 *) Autodetect FreeBSD3.
7574 *) Fix various bugs in Configure. This affects the following platforms:
7578 unixware-2.0-pentium
7582 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7583 before they are needed.
7586 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7590 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7592 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7593 changed SSLeay to OpenSSL in version strings.
7594 [Ralf S. Engelschall]
7596 *) Some fixups to the top-level documents.
7599 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7600 because the symlink to include/ was missing.
7601 [Ralf S. Engelschall]
7603 *) Incorporated the popular no-RSA/DSA-only patches
7604 which allow to compile a RSA-free SSLeay.
7605 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7607 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7608 when "ssleay" is still not found.
7609 [Ralf S. Engelschall]
7611 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7612 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7614 *) Updated the README file.
7615 [Ralf S. Engelschall]
7617 *) Added various .cvsignore files in the CVS repository subdirs
7618 to make a "cvs update" really silent.
7619 [Ralf S. Engelschall]
7621 *) Recompiled the error-definition header files and added
7622 missing symbols to the Win32 linker tables.
7623 [Ralf S. Engelschall]
7625 *) Cleaned up the top-level documents;
7626 o new files: CHANGES and LICENSE
7627 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7628 o merged COPYRIGHT into LICENSE
7629 o removed obsolete TODO file
7630 o renamed MICROSOFT to INSTALL.W32
7631 [Ralf S. Engelschall]
7633 *) Removed dummy files from the 0.9.1b source tree:
7634 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7635 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7636 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7637 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7638 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7639 [Ralf S. Engelschall]
7641 *) Added various platform portability fixes.
7644 *) The Genesis of the OpenSSL rpject:
7645 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7646 Young and Tim J. Hudson created while they were working for C2Net until
7648 [The OpenSSL Project]
7651 Changes between 0.9.0b and 0.9.1b [not released]
7653 *) Updated a few CA certificates under certs/
7656 *) Changed some BIGNUM api stuff.
7659 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7660 DGUX x86, Linux Alpha, etc.
7663 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7664 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7668 *) Add -strparse option to asn1pars program which parses nested
7670 [Dr Stephen Henson <shenson@bigfoot.com>]
7672 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7675 *) DSA fix for "ca" program.
7678 *) Added "-genkey" option to "dsaparam" program.
7681 *) Added RIPE MD160 (rmd160) message digest.
7684 *) Added -a (all) option to "ssleay version" command.
7687 *) Added PLATFORM define which is the id given to Configure.
7690 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7693 *) Extended the ASN.1 parser routines.
7696 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7699 *) Added a BN_CTX to the BN library.
7702 *) Fixed the weak key values in DES library
7705 *) Changed API in EVP library for cipher aliases.
7708 *) Added support for RC2/64bit cipher.
7711 *) Converted the lhash library to the crypto/mem.c functions.
7714 *) Added more recognized ASN.1 object ids.
7717 *) Added more RSA padding checks for SSL/TLS.
7720 *) Added BIO proxy/filter functionality.
7723 *) Added extra_certs to SSL_CTX which can be used
7724 send extra CA certificates to the client in the CA cert chain sending
7725 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7728 *) Now Fortezza is denied in the authentication phase because
7729 this is key exchange mechanism is not supported by SSLeay at all.
7732 *) Additional PKCS1 checks.
7735 *) Support the string "TLSv1" for all TLS v1 ciphers.
7738 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7739 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7742 *) Fixed a few memory leaks.
7745 *) Fixed various code and comment typos.
7748 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7749 bytes sent in the client random.
7750 [Edward Bishop <ebishop@spyglass.com>]