5 Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
7 *) Load error codes if they are not already present instead of using a
8 static variable. This allows them to be cleanly unloaded and reloaded.
9 Improve header file function name parsing.
12 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
14 *) Introduce limits to prevent malicious keys being able to
15 cause a denial of service. (CVE-2006-2940)
16 [Steve Henson, Bodo Moeller]
18 *) Fix ASN.1 parsing of certain invalid structures that can result
19 in a denial of service. (CVE-2006-2937) [Steve Henson]
21 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
22 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
24 *) Fix SSL client code which could crash if connecting to a
25 malicious SSLv2 server. (CVE-2006-4343)
26 [Tavis Ormandy and Will Drewry, Google Security Team]
28 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
29 match only those. Before that, "AES256-SHA" would be interpreted
30 as a pattern and match "AES128-SHA" too (since AES128-SHA got
31 the same strength classification in 0.9.7h) as we currently only
32 have a single AES bit in the ciphersuite description bitmap.
33 That change, however, also applied to ciphersuite strings such as
34 "RC4-MD5" that intentionally matched multiple ciphersuites --
35 namely, SSL 2.0 ciphersuites in addition to the more common ones
38 So we change the selection algorithm again: Naming an explicit
39 ciphersuite selects this one ciphersuite, and any other similar
40 ciphersuite (same bitmap) from *other* protocol versions.
41 Thus, "RC4-MD5" again will properly select both the SSL 2.0
42 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
44 Since SSL 2.0 does not have any ciphersuites for which the
45 128/256 bit distinction would be relevant, this works for now.
46 The proper fix will be to use different bits for AES128 and
47 AES256, which would have avoided the problems from the beginning;
48 however, bits are scarce, so we can only do this in a new release
49 (not just a patchlevel) when we can change the SSL_CIPHER
50 definition to split the single 'unsigned long mask' bitmap into
51 multiple values to extend the available space.
55 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
57 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
58 (CVE-2006-4339) [Ben Laurie and Google Security Team]
60 *) Add AES IGE and biIGE modes.
63 *) Change the Unix randomness entropy gathering to use poll() when
64 possible instead of select(), since the latter has some
65 undesirable limitations.
66 [Darryl Miles via Richard Levitte and Bodo Moeller]
68 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
69 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
70 cannot be implicitly activated as part of, e.g., the "AES" alias.
71 However, please upgrade to OpenSSL 0.9.9[-dev] for
72 non-experimental use of the ECC ciphersuites to get TLS extension
73 support, which is required for curve and point format negotiation
74 to avoid potential handshake problems.
77 *) Disable rogue ciphersuites:
79 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
80 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
81 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
83 The latter two were purportedly from
84 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
87 Also deactive the remaining ciphersuites from
88 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
89 unofficial, and the ID has long expired.
92 *) Fix RSA blinding Heisenbug (problems sometimes occured on
93 dual-core machines) and other potential thread-safety issues.
96 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
97 versions), which is now available for royalty-free use
98 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
99 Also, add Camellia TLS ciphersuites from RFC 4132.
101 To minimize changes between patchlevels in the OpenSSL 0.9.8
102 series, Camellia remains excluded from compilation unless OpenSSL
103 is configured with 'enable-camellia'.
106 *) Disable the padding bug check when compression is in use. The padding
107 bug check assumes the first packet is of even length, this is not
108 necessarily true if compresssion is enabled and can result in false
109 positives causing handshake failure. The actual bug test is ancient
110 code so it is hoped that implementations will either have fixed it by
111 now or any which still have the bug do not support compression.
114 Changes between 0.9.8a and 0.9.8b [04 May 2006]
116 *) When applying a cipher rule check to see if string match is an explicit
117 cipher suite and only match that one cipher suite if it is.
120 *) Link in manifests for VC++ if needed.
121 [Austin Ziegler <halostatue@gmail.com>]
123 *) Update support for ECC-based TLS ciphersuites according to
124 draft-ietf-tls-ecc-12.txt with proposed changes (but without
125 TLS extensions, which are supported starting with the 0.9.9
126 branch, not in the OpenSSL 0.9.8 branch).
129 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
130 opaque EVP_CIPHER_CTX handling.
133 *) Fixes and enhancements to zlib compression code. We now only use
134 "zlib1.dll" and use the default __cdecl calling convention on Win32
135 to conform with the standards mentioned here:
136 http://www.zlib.net/DLL_FAQ.txt
137 Static zlib linking now works on Windows and the new --with-zlib-include
138 --with-zlib-lib options to Configure can be used to supply the location
139 of the headers and library. Gracefully handle case where zlib library
143 *) Several fixes and enhancements to the OID generation code. The old code
144 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
145 handle numbers larger than ULONG_MAX, truncated printing and had a
146 non standard OBJ_obj2txt() behaviour.
149 *) Add support for building of engines under engine/ as shared libraries
150 under VC++ build system.
153 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
154 Hopefully, we will not see any false combination of paths any more.
157 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
159 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
160 (part of SSL_OP_ALL). This option used to disable the
161 countermeasure against man-in-the-middle protocol-version
162 rollback in the SSL 2.0 server implementation, which is a bad
163 idea. (CVE-2005-2969)
165 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
166 for Information Security, National Institute of Advanced Industrial
167 Science and Technology [AIST], Japan)]
169 *) Add two function to clear and return the verify parameter flags.
172 *) Keep cipherlists sorted in the source instead of sorting them at
173 runtime, thus removing the need for a lock.
176 *) Avoid some small subgroup attacks in Diffie-Hellman.
177 [Nick Mathewson and Ben Laurie]
179 *) Add functions for well-known primes.
182 *) Extended Windows CE support.
183 [Satoshi Nakamura and Andy Polyakov]
185 *) Initialize SSL_METHOD structures at compile time instead of during
186 runtime, thus removing the need for a lock.
189 *) Make PKCS7_decrypt() work even if no certificate is supplied by
190 attempting to decrypt each encrypted key in turn. Add support to
194 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
196 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
199 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
202 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
203 key into the same file any more.
206 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
209 *) Add -utf8 command line and config file option to 'ca'.
210 [Stefan <stf@udoma.org]
212 *) Removed the macro des_crypt(), as it seems to conflict with some
213 libraries. Use DES_crypt().
216 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
217 involves renaming the source and generated shared-libs for
218 both. The engines will accept the corrected or legacy ids
219 ('ncipher' and '4758_cca' respectively) when binding. NB,
220 this only applies when building 'shared'.
221 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
223 *) Add attribute functions to EVP_PKEY structure. Modify
224 PKCS12_create() to recognize a CSP name attribute and
225 use it. Make -CSP option work again in pkcs12 utility.
228 *) Add new functionality to the bn blinding code:
229 - automatic re-creation of the BN_BLINDING parameters after
230 a fixed number of uses (currently 32)
231 - add new function for parameter creation
232 - introduce flags to control the update behaviour of the
233 BN_BLINDING parameters
234 - hide BN_BLINDING structure
235 Add a second BN_BLINDING slot to the RSA structure to improve
236 performance when a single RSA object is shared among several
240 *) Add support for DTLS.
241 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
243 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
244 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
247 *) Remove buggy and incompletet DH cert support from
248 ssl/ssl_rsa.c and ssl/s3_both.c
251 *) Use SHA-1 instead of MD5 as the default digest algorithm for
252 the apps/openssl applications.
255 *) Compile clean with "-Wall -Wmissing-prototypes
256 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
257 DEBUG_SAFESTACK must also be set.
260 *) Change ./Configure so that certain algorithms can be disabled by default.
261 The new counterpiece to "no-xxx" is "enable-xxx".
263 The patented RC5 and MDC2 algorithms will now be disabled unless
264 "enable-rc5" and "enable-mdc2", respectively, are specified.
266 (IDEA remains enabled despite being patented. This is because IDEA
267 is frequently required for interoperability, and there is no license
268 fee for non-commercial use. As before, "no-idea" can be used to
269 avoid this algorithm.)
273 *) Add processing of proxy certificates (see RFC 3820). This work was
274 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
275 EGEE (Enabling Grids for E-science in Europe).
278 *) RC4 performance overhaul on modern architectures/implementations, such
279 as Intel P4, IA-64 and AMD64.
282 *) New utility extract-section.pl. This can be used specify an alternative
283 section number in a pod file instead of having to treat each file as
284 a separate case in Makefile. This can be done by adding two lines to the
287 =for comment openssl_section:XXX
289 The blank line is mandatory.
293 *) New arguments -certform, -keyform and -pass for s_client and s_server
294 to allow alternative format key and certificate files and passphrase
298 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
299 update associated structures and add various utility functions.
301 Add new policy related verify parameters, include policy checking in
302 standard verify code. Enhance 'smime' application with extra parameters
303 to support policy checking and print out.
306 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
307 Nehemiah processors. These extensions support AES encryption in hardware
308 as well as RNG (though RNG support is currently disabled).
309 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
311 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
314 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
315 [Andy Polyakov and a number of other people]
317 *) Improved PowerPC platform support. Most notably BIGNUM assembler
318 implementation contributed by IBM.
319 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
321 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
322 exponent rather than 'unsigned long'. There is a corresponding change to
323 the new 'rsa_keygen' element of the RSA_METHOD structure.
324 [Jelte Jansen, Geoff Thorpe]
326 *) Functionality for creating the initial serial number file is now
327 moved from CA.pl to the 'ca' utility with a new option -create_serial.
329 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
330 number file to 1, which is bound to cause problems. To avoid
331 the problems while respecting compatibility between different 0.9.7
332 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
333 CA.pl for serial number initialization. With the new release 0.9.8,
334 we can fix the problem directly in the 'ca' utility.)
337 *) Reduced header interdepencies by declaring more opaque objects in
338 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
339 give fewer recursive includes, which could break lazy source code - so
340 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
341 developers should define this symbol when building and using openssl to
342 ensure they track the recommended behaviour, interfaces, [etc], but
343 backwards-compatible behaviour prevails when this isn't defined.
346 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
349 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
350 This will generate a random key of the appropriate length based on the
351 cipher context. The EVP_CIPHER can provide its own random key generation
352 routine to support keys of a specific form. This is used in the des and
353 3des routines to generate a key of the correct parity. Update S/MIME
354 code to use new functions and hence generate correct parity DES keys.
355 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
356 valid (weak or incorrect parity).
359 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
360 as looking them up. This is useful when the verified structure may contain
361 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
362 present unless the new PKCS7_NO_CRL flag is asserted.
365 *) Extend ASN1 oid configuration module. It now additionally accepts the
368 shortName = some long name, 1.2.3.4
371 *) Reimplemented the BN_CTX implementation. There is now no more static
372 limitation on the number of variables it can handle nor the depth of the
373 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
374 information can now expand as required, and rather than having a single
375 static array of bignums, BN_CTX now uses a linked-list of such arrays
376 allowing it to expand on demand whilst maintaining the usefulness of
380 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
381 to allow all RSA operations to function using a single BN_CTX.
384 *) Preliminary support for certificate policy evaluation and checking. This
385 is initially intended to pass the tests outlined in "Conformance Testing
386 of Relying Party Client Certificate Path Processing Logic" v1.07.
389 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
390 remained unused and not that useful. A variety of other little bignum
391 tweaks and fixes have also been made continuing on from the audit (see
395 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
396 associated ASN1, EVP and SSL functions and old ASN1 macros.
399 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
400 and this should never fail. So the return value from the use of
401 BN_set_word() (which can fail due to needless expansion) is now deprecated;
402 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
405 *) BN_CTX_get() should return zero-valued bignums, providing the same
406 initialised value as BN_new().
407 [Geoff Thorpe, suggested by Ulf Möller]
409 *) Support for inhibitAnyPolicy certificate extension.
412 *) An audit of the BIGNUM code is underway, for which debugging code is
413 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
414 is considered valid when processing BIGNUMs, and causes execution to
415 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
416 further steps are taken to deliberately pollute unused data in BIGNUM
417 structures to try and expose faulty code further on. For now, openssl will
418 (in its default mode of operation) continue to tolerate the inconsistent
419 forms that it has tolerated in the past, but authors and packagers should
420 consider trying openssl and their own applications when compiled with
421 these debugging symbols defined. It will help highlight potential bugs in
422 their own code, and will improve the test coverage for OpenSSL itself. At
423 some point, these tighter rules will become openssl's default to improve
424 maintainability, though the assert()s and other overheads will remain only
425 in debugging configurations. See bn.h for more details.
426 [Geoff Thorpe, Nils Larsch, Ulf Möller]
428 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
429 that can only be obtained through BN_CTX_new() (which implicitly
430 initialises it). The presence of this function only made it possible
431 to overwrite an existing structure (and cause memory leaks).
434 *) Because of the callback-based approach for implementing LHASH as a
435 template type, lh_insert() adds opaque objects to hash-tables and
436 lh_doall() or lh_doall_arg() are typically used with a destructor callback
437 to clean up those corresponding objects before destroying the hash table
438 (and losing the object pointers). So some over-zealous constifications in
439 LHASH have been relaxed so that lh_insert() does not take (nor store) the
440 objects as "const" and the lh_doall[_arg] callback wrappers are not
441 prototyped to have "const" restrictions on the object pointers they are
442 given (and so aren't required to cast them away any more).
445 *) The tmdiff.h API was so ugly and minimal that our own timing utility
446 (speed) prefers to use its own implementation. The two implementations
447 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
448 its object type properly exposed (MS_TM) instead of casting to/from "char
449 *". This may still change yet if someone realises MS_TM and "ms_time_***"
450 aren't necessarily the greatest nomenclatures - but this is what was used
451 internally to the implementation so I've used that for now.
454 *) Ensure that deprecated functions do not get compiled when
455 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
456 the self-tests were still using deprecated key-generation functions so
457 these have been updated also.
460 *) Reorganise PKCS#7 code to separate the digest location functionality
461 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
462 New function PKCS7_set_digest() to set the digest type for PKCS#7
463 digestedData type. Add additional code to correctly generate the
464 digestedData type and add support for this type in PKCS7 initialization
468 *) New function PKCS7_set0_type_other() this initializes a PKCS7
469 structure of type "other".
472 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
473 sure the loop does correctly stop and breaking ("division by zero")
474 modulus operations are not performed. The (pre-generated) prime
475 table crypto/bn/bn_prime.h was already correct, but it could not be
476 re-generated on some platforms because of the "division by zero"
477 situation in the script.
478 [Ralf S. Engelschall]
480 *) Update support for ECC-based TLS ciphersuites according to
481 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
482 SHA-1 now is only used for "small" curves (where the
483 representation of a field element takes up to 24 bytes); for
484 larger curves, the field element resulting from ECDH is directly
485 used as premaster secret.
486 [Douglas Stebila (Sun Microsystems Laboratories)]
488 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
489 curve secp160r1 to the tests.
490 [Douglas Stebila (Sun Microsystems Laboratories)]
492 *) Add the possibility to load symbols globally with DSO.
493 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
495 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
496 control of the error stack.
499 *) Add support for STORE in ENGINE.
502 *) Add the STORE type. The intention is to provide a common interface
503 to certificate and key stores, be they simple file-based stores, or
504 HSM-type store, or LDAP stores, or...
505 NOTE: The code is currently UNTESTED and isn't really used anywhere.
508 *) Add a generic structure called OPENSSL_ITEM. This can be used to
509 pass a list of arguments to any function as well as provide a way
510 for a function to pass data back to the caller.
513 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
514 works like BUF_strdup() but can be used to duplicate a portion of
515 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
519 *) Add the function sk_find_ex() which works like sk_find(), but will
520 return an index to an element even if an exact match couldn't be
521 found. The index is guaranteed to point at the element where the
522 searched-for key would be inserted to preserve sorting order.
525 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
526 takes an extra flags argument for optional functionality. Currently,
527 the following flags are defined:
529 OBJ_BSEARCH_VALUE_ON_NOMATCH
530 This one gets OBJ_bsearch_ex() to return a pointer to the first
531 element where the comparing function returns a negative or zero
534 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
535 This one gets OBJ_bsearch_ex() to return a pointer to the first
536 element where the comparing function returns zero. This is useful
537 if there are more than one element where the comparing function
541 *) Make it possible to create self-signed certificates with 'openssl ca'
542 in such a way that the self-signed certificate becomes part of the
543 CA database and uses the same mechanisms for serial number generation
544 as all other certificate signing. The new flag '-selfsign' enables
545 this functionality. Adapt CA.sh and CA.pl.in.
548 *) Add functionality to check the public key of a certificate request
549 against a given private. This is useful to check that a certificate
550 request can be signed by that key (self-signing).
553 *) Make it possible to have multiple active certificates with the same
554 subject in the CA index file. This is done only if the keyword
555 'unique_subject' is set to 'no' in the main CA section (default
556 if 'CA_default') of the configuration file. The value is saved
557 with the database itself in a separate index attribute file,
558 named like the index file with '.attr' appended to the name.
561 *) Generate muti valued AVAs using '+' notation in config files for
565 *) Support for nameConstraints certificate extension.
568 *) Support for policyConstraints certificate extension.
571 *) Support for policyMappings certificate extension.
574 *) Make sure the default DSA_METHOD implementation only uses its
575 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
576 and change its own handlers to be NULL so as to remove unnecessary
577 indirection. This lets alternative implementations fallback to the
578 default implementation more easily.
581 *) Support for directoryName in GeneralName related extensions
585 *) Make it possible to link applications using Makefile.shared.
586 Make that possible even when linking against static libraries!
589 *) Support for single pass processing for S/MIME signing. This now
590 means that S/MIME signing can be done from a pipe, in addition
591 cleartext signing (multipart/signed type) is effectively streaming
592 and the signed data does not need to be all held in memory.
594 This is done with a new flag PKCS7_STREAM. When this flag is set
595 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
596 is done after the data is output (and digests calculated) in
600 *) Add full support for -rpath/-R, both in shared libraries and
601 applications, at least on the platforms where it's known how
605 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
606 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
607 will now compute a table of multiples of the generator that
608 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
609 faster (notably in the case of a single point multiplication,
611 [Nils Larsch, Bodo Moeller]
613 *) IPv6 support for certificate extensions. The various extensions
614 which use the IP:a.b.c.d can now take IPv6 addresses using the
615 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
619 *) Added an ENGINE that implements RSA by performing private key
620 exponentiations with the GMP library. The conversions to and from
621 GMP's mpz_t format aren't optimised nor are any montgomery forms
622 cached, and on x86 it appears OpenSSL's own performance has caught up.
623 However there are likely to be other architectures where GMP could
624 provide a boost. This ENGINE is not built in by default, but it can be
625 specified at Configure time and should be accompanied by the necessary
626 linker additions, eg;
627 ./config -DOPENSSL_USE_GMP -lgmp
630 *) "openssl engine" will not display ENGINE/DSO load failure errors when
631 testing availability of engines with "-t" - the old behaviour is
632 produced by increasing the feature's verbosity with "-tt".
635 *) ECDSA routines: under certain error conditions uninitialized BN objects
636 could be freed. Solution: make sure initialization is performed early
637 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
641 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
642 and DH_METHOD (eg. by ENGINE implementations) to override the normal
643 software implementations. For DSA and DH, parameter generation can
644 also be overriden by providing the appropriate method callbacks.
647 *) Change the "progress" mechanism used in key-generation and
648 primality testing to functions that take a new BN_GENCB pointer in
649 place of callback/argument pairs. The new API functions have "_ex"
650 postfixes and the older functions are reimplemented as wrappers for
651 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
652 declarations of the old functions to help (graceful) attempts to
653 migrate to the new functions. Also, the new key-generation API
654 functions operate on a caller-supplied key-structure and return
655 success/failure rather than returning a key or NULL - this is to
656 help make "keygen" another member function of RSA_METHOD etc.
658 Example for using the new callback interface:
660 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
664 BN_GENCB_set(&my_cb, my_callback, my_arg);
666 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
667 /* For the meaning of a, b in calls to my_callback(), see the
668 * documentation of the function that calls the callback.
669 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
670 * my_callback should return 1 if it wants BN_is_prime_ex()
671 * to continue, or 0 to stop.
676 *) Change the ZLIB compression method to be stateful, and make it
677 available to TLS with the number defined in
678 draft-ietf-tls-compression-04.txt.
681 *) Add the ASN.1 structures and functions for CertificatePair, which
682 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
684 CertificatePair ::= SEQUENCE {
685 forward [0] Certificate OPTIONAL,
686 reverse [1] Certificate OPTIONAL,
687 -- at least one of the pair shall be present -- }
689 Also implement the PEM functions to read and write certificate
690 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
692 This needed to be defined, mostly for the sake of the LDAP
693 attribute crossCertificatePair, but may prove useful elsewhere as
697 *) Make it possible to inhibit symlinking of shared libraries in
698 Makefile.shared, for Cygwin's sake.
701 *) Extend the BIGNUM API by creating a function
702 void BN_set_negative(BIGNUM *a, int neg);
703 and a macro that behave like
704 int BN_is_negative(const BIGNUM *a);
706 to avoid the need to access 'a->neg' directly in applications.
709 *) Implement fast modular reduction for pseudo-Mersenne primes
710 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
711 EC_GROUP_new_curve_GFp() will now automatically use this
713 [Nils Larsch <nla@trustcenter.de>]
715 *) Add new lock type (CRYPTO_LOCK_BN).
718 *) Change the ENGINE framework to automatically load engines
719 dynamically from specific directories unless they could be
720 found to already be built in or loaded. Move all the
721 current engines except for the cryptodev one to a new
723 The engines in engines/ are built as shared libraries if
724 the "shared" options was given to ./Configure or ./config.
725 Otherwise, they are inserted in libcrypto.a.
726 /usr/local/ssl/engines is the default directory for dynamic
727 engines, but that can be overriden at configure time through
728 the usual use of --prefix and/or --openssldir, and at run
729 time with the environment variable OPENSSL_ENGINES.
730 [Geoff Thorpe and Richard Levitte]
732 *) Add Makefile.shared, a helper makefile to build shared
733 libraries. Addapt Makefile.org.
736 *) Add version info to Win32 DLLs.
737 [Peter 'Luna' Runestig" <peter@runestig.com>]
739 *) Add new 'medium level' PKCS#12 API. Certificates and keys
740 can be added using this API to created arbitrary PKCS#12
741 files while avoiding the low level API.
743 New options to PKCS12_create(), key or cert can be NULL and
744 will then be omitted from the output file. The encryption
745 algorithm NIDs can be set to -1 for no encryption, the mac
746 iteration count can be set to 0 to omit the mac.
748 Enhance pkcs12 utility by making the -nokeys and -nocerts
749 options work when creating a PKCS#12 file. New option -nomac
750 to omit the mac, NONE can be set for an encryption algorithm.
751 New code is modified to use the enhanced PKCS12_create()
752 instead of the low level API.
755 *) Extend ASN1 encoder to support indefinite length constructed
756 encoding. This can output sequences tags and octet strings in
757 this form. Modify pk7_asn1.c to support indefinite length
758 encoding. This is experimental and needs additional code to
759 be useful, such as an ASN1 bio and some enhanced streaming
762 Extend template encode functionality so that tagging is passed
763 down to the template encoder.
766 *) Let 'openssl req' fail if an argument to '-newkey' is not
767 recognized instead of using RSA as a default.
770 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
771 As these are not official, they are not included in "ALL";
772 the "ECCdraft" ciphersuite group alias can be used to select them.
773 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
775 *) Add ECDH engine support.
776 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
778 *) Add ECDH in new directory crypto/ecdh/.
779 [Douglas Stebila (Sun Microsystems Laboratories)]
781 *) Let BN_rand_range() abort with an error after 100 iterations
782 without success (which indicates a broken PRNG).
785 *) Change BN_mod_sqrt() so that it verifies that the input value
786 is really the square of the return value. (Previously,
787 BN_mod_sqrt would show GIGO behaviour.)
790 *) Add named elliptic curves over binary fields from X9.62, SECG,
791 and WAP/WTLS; add OIDs that were still missing.
793 [Sheueling Chang Shantz and Douglas Stebila
794 (Sun Microsystems Laboratories)]
796 *) Extend the EC library for elliptic curves over binary fields
797 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
800 EC_GF2m_simple_method
804 EC_GROUP_new_curve_GF2m
805 EC_GROUP_set_curve_GF2m
806 EC_GROUP_get_curve_GF2m
807 EC_POINT_set_affine_coordinates_GF2m
808 EC_POINT_get_affine_coordinates_GF2m
809 EC_POINT_set_compressed_coordinates_GF2m
811 Point compression for binary fields is disabled by default for
812 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
815 As binary polynomials are represented as BIGNUMs, various members
816 of the EC_GROUP and EC_POINT data structures can be shared
817 between the implementations for prime fields and binary fields;
818 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
819 are essentially identical to their ..._GFp counterparts.
820 (For simplicity, the '..._GFp' prefix has been dropped from
821 various internal method names.)
823 An internal 'field_div' method (similar to 'field_mul' and
824 'field_sqr') has been added; this is used only for binary fields.
826 [Sheueling Chang Shantz and Douglas Stebila
827 (Sun Microsystems Laboratories)]
829 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
830 through methods ('mul', 'precompute_mult').
832 The generic implementations (now internally called 'ec_wNAF_mul'
833 and 'ec_wNAF_precomputed_mult') remain the default if these
834 methods are undefined.
836 [Sheueling Chang Shantz and Douglas Stebila
837 (Sun Microsystems Laboratories)]
839 *) New function EC_GROUP_get_degree, which is defined through
840 EC_METHOD. For curves over prime fields, this returns the bit
841 length of the modulus.
843 [Sheueling Chang Shantz and Douglas Stebila
844 (Sun Microsystems Laboratories)]
846 *) New functions EC_GROUP_dup, EC_POINT_dup.
847 (These simply call ..._new and ..._copy).
849 [Sheueling Chang Shantz and Douglas Stebila
850 (Sun Microsystems Laboratories)]
852 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
853 Polynomials are represented as BIGNUMs (where the sign bit is not
854 used) in the following functions [macros]:
857 BN_GF2m_sub [= BN_GF2m_add]
858 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
859 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
860 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
862 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
863 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
864 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
865 BN_GF2m_cmp [= BN_ucmp]
867 (Note that only the 'mod' functions are actually for fields GF(2^m).
868 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
870 For some functions, an the irreducible polynomial defining a
871 field can be given as an 'unsigned int[]' with strictly
872 decreasing elements giving the indices of those bits that are set;
873 i.e., p[] represents the polynomial
874 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
876 p[0] > p[1] > ... > p[k] = 0.
877 This applies to the following functions:
882 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
883 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
886 BN_GF2m_mod_solve_quad_arr
890 Conversion can be performed by the following functions:
895 bntest.c has additional tests for binary polynomial arithmetic.
897 Two implementations for BN_GF2m_mod_div() are available.
898 The default algorithm simply uses BN_GF2m_mod_inv() and
899 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
900 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
901 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
903 [Sheueling Chang Shantz and Douglas Stebila
904 (Sun Microsystems Laboratories)]
906 *) Add new error code 'ERR_R_DISABLED' that can be used when some
907 functionality is disabled at compile-time.
908 [Douglas Stebila <douglas.stebila@sun.com>]
910 *) Change default behaviour of 'openssl asn1parse' so that more
911 information is visible when viewing, e.g., a certificate:
913 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
914 mode the content of non-printable OCTET STRINGs is output in a
915 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
916 avoid the appearance of a printable string.
917 [Nils Larsch <nla@trustcenter.de>]
919 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
921 EC_GROUP_set_asn1_flag()
922 EC_GROUP_get_asn1_flag()
923 EC_GROUP_set_point_conversion_form()
924 EC_GROUP_get_point_conversion_form()
925 These control ASN1 encoding details:
926 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
927 has been set to OPENSSL_EC_NAMED_CURVE.
928 - Points are encoded in uncompressed form by default; options for
929 asn1_for are as for point2oct, namely
930 POINT_CONVERSION_COMPRESSED
931 POINT_CONVERSION_UNCOMPRESSED
932 POINT_CONVERSION_HYBRID
934 Also add 'seed' and 'seed_len' members to EC_GROUP with access
938 EC_GROUP_get_seed_len()
939 This is used only for ASN1 purposes (so far).
940 [Nils Larsch <nla@trustcenter.de>]
942 *) Add 'field_type' member to EC_METHOD, which holds the NID
943 of the appropriate field type OID. The new function
944 EC_METHOD_get_field_type() returns this value.
945 [Nils Larsch <nla@trustcenter.de>]
952 providing useful interfaces to EC_POINT_point2oct() and
953 EC_POINT_oct2point().
954 [Nils Larsch <nla@trustcenter.de>]
956 *) Change internals of the EC library so that the functions
957 EC_GROUP_set_generator()
958 EC_GROUP_get_generator()
960 EC_GROUP_get_cofactor()
961 are implemented directly in crypto/ec/ec_lib.c and not dispatched
962 to methods, which would lead to unnecessary code duplication when
963 adding different types of curves.
964 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
966 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
967 arithmetic, and such that modified wNAFs are generated
968 (which avoid length expansion in many cases).
971 *) Add a function EC_GROUP_check_discriminant() (defined via
972 EC_METHOD) that verifies that the curve discriminant is non-zero.
974 Add a function EC_GROUP_check() that makes some sanity tests
975 on a EC_GROUP, its generator and order. This includes
976 EC_GROUP_check_discriminant().
977 [Nils Larsch <nla@trustcenter.de>]
979 *) Add ECDSA in new directory crypto/ecdsa/.
981 Add applications 'openssl ecparam' and 'openssl ecdsa'
982 (these are based on 'openssl dsaparam' and 'openssl dsa').
984 ECDSA support is also included in various other files across the
985 library. Most notably,
986 - 'openssl req' now has a '-newkey ecdsa:file' option;
987 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
988 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
989 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
990 them suitable for ECDSA where domain parameters must be
991 extracted before the specific public key;
992 - ECDSA engine support has been added.
993 [Nils Larsch <nla@trustcenter.de>]
995 *) Include some named elliptic curves, and add OIDs from X9.62,
996 SECG, and WAP/WTLS. Each curve can be obtained from the new
998 EC_GROUP_new_by_curve_name(),
999 and the list of available named curves can be obtained with
1000 EC_get_builtin_curves().
1001 Also add a 'curve_name' member to EC_GROUP objects, which can be
1003 EC_GROUP_set_curve_name()
1004 EC_GROUP_get_curve_name()
1005 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1007 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1008 was actually never needed) and in BN_mul(). The removal in BN_mul()
1009 required a small change in bn_mul_part_recursive() and the addition
1010 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1011 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1012 bn_sub_words() and bn_add_words() except they take arrays with
1016 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1018 *) Introduce limits to prevent malicious keys being able to
1019 cause a denial of service. (CVE-2006-2940)
1020 [Steve Henson, Bodo Moeller]
1022 *) Fix ASN.1 parsing of certain invalid structures that can result
1023 in a denial of service. (CVE-2006-2937) [Steve Henson]
1025 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1026 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1028 *) Fix SSL client code which could crash if connecting to a
1029 malicious SSLv2 server. (CVE-2006-4343)
1030 [Tavis Ormandy and Will Drewry, Google Security Team]
1032 *) Change ciphersuite string processing so that an explicit
1033 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1034 will no longer include "AES128-SHA"), and any other similar
1035 ciphersuite (same bitmap) from *other* protocol versions (so that
1036 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1037 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1038 changes from 0.9.8b and 0.9.8d.
1041 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1043 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1044 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1046 *) Change the Unix randomness entropy gathering to use poll() when
1047 possible instead of select(), since the latter has some
1048 undesirable limitations.
1049 [Darryl Miles via Richard Levitte and Bodo Moeller]
1051 *) Disable rogue ciphersuites:
1053 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1054 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1055 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1057 The latter two were purportedly from
1058 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1061 Also deactive the remaining ciphersuites from
1062 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1063 unofficial, and the ID has long expired.
1066 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1067 dual-core machines) and other potential thread-safety issues.
1070 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1072 *) Adapt fipsld and the build system to link against the validated FIPS
1073 module in FIPS mode.
1076 *) Fixes for VC++ 2005 build under Windows.
1079 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1080 from a Windows bash shell such as MSYS. It is autodetected from the
1081 "config" script when run from a VC++ environment. Modify standard VC++
1082 build to use fipscanister.o from the GNU make build.
1085 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1087 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1088 The value now differs depending on if you build for FIPS or not.
1089 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1090 safely run with a non-FIPSed libcrypto, as it may crash because of
1091 the difference induced by this change.
1094 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1096 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1097 (part of SSL_OP_ALL). This option used to disable the
1098 countermeasure against man-in-the-middle protocol-version
1099 rollback in the SSL 2.0 server implementation, which is a bad
1100 idea. (CVE-2005-2969)
1102 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1103 for Information Security, National Institute of Advanced Industrial
1104 Science and Technology [AIST], Japan)]
1106 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1107 mainly for FIPS compliance and not fully integrated at this stage.
1110 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1111 the exponentiation using a fixed-length exponent. (Otherwise,
1112 the information leaked through timing could expose the secret key
1113 after many signatures; cf. Bleichenbacher's attack on DSA with
1117 *) Make a new fixed-window mod_exp implementation the default for
1118 RSA, DSA, and DH private-key operations so that the sequence of
1119 squares and multiplies and the memory access pattern are
1120 independent of the particular secret key. This will mitigate
1121 cache-timing and potential related attacks.
1123 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1124 and this is automatically used by BN_mod_exp_mont() if the new flag
1125 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1126 will use this BN flag for private exponents unless the flag
1127 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1128 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1130 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1132 *) Change the client implementation for SSLv23_method() and
1133 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1134 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1135 (Previously, the SSL 2.0 backwards compatible Client Hello
1136 message format would be used even with SSL_OP_NO_SSLv2.)
1139 *) Add support for smime-type MIME parameter in S/MIME messages which some
1143 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1144 a threadsafe manner. Modify rsa code to use new function and add calls
1145 to dsa and dh code (which had race conditions before).
1148 *) Include the fixed error library code in the C error file definitions
1149 instead of fixing them up at runtime. This keeps the error code
1150 structures constant.
1153 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1155 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1158 *) Fixes for newer kerberos headers. NB: the casts are needed because
1159 the 'length' field is signed on one version and unsigned on another
1160 with no (?) obvious way to tell the difference, without these VC++
1161 complains. Also the "definition" of FAR (blank) is no longer included
1162 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1163 some needed definitions.
1166 *) Undo Cygwin change.
1169 *) Added support for proxy certificates according to RFC 3820.
1170 Because they may be a security thread to unaware applications,
1171 they must be explicitely allowed in run-time. See
1172 docs/HOWTO/proxy_certificates.txt for further information.
1175 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1177 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1178 server and client random values. Previously
1179 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1180 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1182 This change has negligible security impact because:
1184 1. Server and client random values still have 24 bytes of pseudo random
1187 2. Server and client random values are sent in the clear in the initial
1190 3. The master secret is derived using the premaster secret (48 bytes in
1191 size for static RSA ciphersuites) as well as client server and random
1194 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1197 [Stephen Henson, reported by UK NISCC]
1199 *) Use Windows randomness collection on Cygwin.
1202 *) Fix hang in EGD/PRNGD query when communication socket is closed
1203 prematurely by EGD/PRNGD.
1204 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1206 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1209 *) Back-port of selected performance improvements from development
1210 branch, as well as improved support for PowerPC platforms.
1213 *) Add lots of checks for memory allocation failure, error codes to indicate
1214 failure and freeing up memory if a failure occurs.
1215 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1217 *) Add new -passin argument to dgst.
1220 *) Perform some character comparisons of different types in X509_NAME_cmp:
1221 this is needed for some certificates that reencode DNs into UTF8Strings
1222 (in violation of RFC3280) and can't or wont issue name rollover
1226 *) Make an explicit check during certificate validation to see that
1227 the CA setting in each certificate on the chain is correct. As a
1228 side effect always do the following basic checks on extensions,
1229 not just when there's an associated purpose to the check:
1231 - if there is an unhandled critical extension (unless the user
1232 has chosen to ignore this fault)
1233 - if the path length has been exceeded (if one is set at all)
1234 - that certain extensions fit the associated purpose (if one has
1238 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1240 *) Avoid a race condition when CRLs are checked in a multi threaded
1241 environment. This would happen due to the reordering of the revoked
1242 entries during signature checking and serial number lookup. Now the
1243 encoding is cached and the serial number sort performed under a lock.
1244 Add new STACK function sk_is_sorted().
1247 *) Add Delta CRL to the extension code.
1250 *) Various fixes to s3_pkt.c so alerts are sent properly.
1251 [David Holmes <d.holmes@f5.com>]
1253 *) Reduce the chances of duplicate issuer name and serial numbers (in
1254 violation of RFC3280) using the OpenSSL certificate creation utilities.
1255 This is done by creating a random 64 bit value for the initial serial
1256 number when a serial number file is created or when a self signed
1257 certificate is created using 'openssl req -x509'. The initial serial
1258 number file is created using 'openssl x509 -next_serial' in CA.pl
1259 rather than being initialized to 1.
1262 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1264 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1265 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1266 [Joe Orton, Steve Henson]
1268 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1270 [Joe Orton, Steve Henson]
1272 *) Make it possible to have multiple active certificates with the same
1273 subject in the CA index file. This is done only if the keyword
1274 'unique_subject' is set to 'no' in the main CA section (default
1275 if 'CA_default') of the configuration file. The value is saved
1276 with the database itself in a separate index attribute file,
1277 named like the index file with '.attr' appended to the name.
1280 *) X509 verify fixes. Disable broken certificate workarounds when
1281 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1282 keyUsage extension present. Don't accept CRLs with unhandled critical
1283 extensions: since verify currently doesn't process CRL extensions this
1284 rejects a CRL with *any* critical extensions. Add new verify error codes
1288 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1289 A clarification of RFC2560 will require the use of OCTET STRINGs and
1290 some implementations cannot handle the current raw format. Since OpenSSL
1291 copies and compares OCSP nonces as opaque blobs without any attempt at
1292 parsing them this should not create any compatibility issues.
1295 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1296 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1297 this HMAC (and other) operations are several times slower than OpenSSL
1301 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1302 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1304 *) Use the correct content when signing type "other".
1307 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1309 *) Fix various bugs revealed by running the NISCC test suite:
1311 Stop out of bounds reads in the ASN1 code when presented with
1312 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1314 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1316 If verify callback ignores invalid public key errors don't try to check
1317 certificate signature with the NULL public key.
1321 *) New -ignore_err option in ocsp application to stop the server
1322 exiting on the first error in a request.
1325 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1326 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1330 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1331 extra data after the compression methods not only for TLS 1.0
1332 but also for SSL 3.0 (as required by the specification).
1333 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1335 *) Change X509_certificate_type() to mark the key as exported/exportable
1336 when it's 512 *bits* long, not 512 bytes.
1339 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1340 blocks during encryption.
1343 *) Various fixes to base64 BIO and non blocking I/O. On write
1344 flushes were not handled properly if the BIO retried. On read
1345 data was not being buffered properly and had various logic bugs.
1346 This also affects blocking I/O when the data being decoded is a
1350 *) Various S/MIME bugfixes and compatibility changes:
1351 output correct application/pkcs7 MIME type if
1352 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1353 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1354 of files as .eml work). Correctly handle very long lines in MIME
1358 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1360 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1361 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1362 a protocol version number mismatch like a decryption error
1363 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1366 *) Turn on RSA blinding by default in the default implementation
1367 to avoid a timing attack. Applications that don't want it can call
1368 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1369 They would be ill-advised to do so in most cases.
1370 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1372 *) Change RSA blinding code so that it works when the PRNG is not
1373 seeded (in this case, the secret RSA exponent is abused as
1374 an unpredictable seed -- if it is not unpredictable, there
1375 is no point in blinding anyway). Make RSA blinding thread-safe
1376 by remembering the creator's thread ID in rsa->blinding and
1377 having all other threads use local one-time blinding factors
1378 (this requires more computation than sharing rsa->blinding, but
1379 avoids excessive locking; and if an RSA object is not shared
1380 between threads, blinding will still be very fast).
1383 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1384 ENGINE as defaults for all supported algorithms irrespective of
1385 the 'flags' parameter. 'flags' is now honoured, so applications
1386 should make sure they are passing it correctly.
1389 *) Target "mingw" now allows native Windows code to be generated in
1390 the Cygwin environment as well as with the MinGW compiler.
1393 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1395 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1396 via timing by performing a MAC computation even if incorrrect
1397 block cipher padding has been found. This is a countermeasure
1398 against active attacks where the attacker has to distinguish
1399 between bad padding and a MAC verification error. (CVE-2003-0078)
1401 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1402 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1403 Martin Vuagnoux (EPFL, Ilion)]
1405 *) Make the no-err option work as intended. The intention with no-err
1406 is not to have the whole error stack handling routines removed from
1407 libcrypto, it's only intended to remove all the function name and
1408 reason texts, thereby removing some of the footprint that may not
1409 be interesting if those errors aren't displayed anyway.
1411 NOTE: it's still possible for any application or module to have it's
1412 own set of error texts inserted. The routines are there, just not
1413 used by default when no-err is given.
1416 *) Add support for FreeBSD on IA64.
1417 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1419 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1420 Kerberos function mit_des_cbc_cksum(). Before this change,
1421 the value returned by DES_cbc_cksum() was like the one from
1422 mit_des_cbc_cksum(), except the bytes were swapped.
1423 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1425 *) Allow an application to disable the automatic SSL chain building.
1426 Before this a rather primitive chain build was always performed in
1427 ssl3_output_cert_chain(): an application had no way to send the
1428 correct chain if the automatic operation produced an incorrect result.
1430 Now the chain builder is disabled if either:
1432 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1434 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1436 The reasoning behind this is that an application would not want the
1437 auto chain building to take place if extra chain certificates are
1438 present and it might also want a means of sending no additional
1439 certificates (for example the chain has two certificates and the
1443 *) Add the possibility to build without the ENGINE framework.
1444 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1446 *) Under Win32 gmtime() can return NULL: check return value in
1447 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1450 *) DSA routines: under certain error conditions uninitialized BN objects
1451 could be freed. Solution: make sure initialization is performed early
1452 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1453 Nils Larsch <nla@trustcenter.de> via PR#459)
1456 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1457 checked on reconnect on the client side, therefore session resumption
1458 could still fail with a "ssl session id is different" error. This
1459 behaviour is masked when SSL_OP_ALL is used due to
1460 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1461 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1462 followup to PR #377.
1465 *) IA-32 assembler support enhancements: unified ELF targets, support
1466 for SCO/Caldera platforms, fix for Cygwin shared build.
1469 *) Add support for FreeBSD on sparc64. As a consequence, support for
1470 FreeBSD on non-x86 processors is separate from x86 processors on
1471 the config script, much like the NetBSD support.
1472 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1474 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1476 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1479 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1480 code (06) was taken as the first octet of the session ID and the last
1481 octet was ignored consequently. As a result SSLv2 client side session
1482 caching could not have worked due to the session ID mismatch between
1484 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1488 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1489 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1493 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1494 seems that in spite of existing for more than a year, many application
1495 author have done nothing to provide the necessary callbacks, which
1496 means that this particular engine will not work properly anywhere.
1497 This is a very unfortunate situation which forces us, in the name
1498 of usability, to give the hw_ncipher.c a static lock, which is part
1500 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1501 appear in 0.9.8 or later. We EXPECT application authors to have
1502 dealt properly with this when 0.9.8 is released (unless we actually
1503 make such changes in the libcrypto locking code that changes will
1504 have to be made anyway).
1507 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1508 octets have been read, EOF or an error occurs. Without this change
1509 some truncated ASN1 structures will not produce an error.
1512 *) Disable Heimdal support, since it hasn't been fully implemented.
1513 Still give the possibility to force the use of Heimdal, but with
1514 warnings and a request that patches get sent to openssl-dev.
1517 *) Add the VC-CE target, introduce the WINCE sysname, and add
1518 INSTALL.WCE and appropriate conditionals to make it build.
1519 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1521 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1522 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1523 edit numbers of the version.
1524 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1526 *) Introduce safe string copy and catenation functions
1527 (BUF_strlcpy() and BUF_strlcat()).
1528 [Ben Laurie (CHATS) and Richard Levitte]
1530 *) Avoid using fixed-size buffers for one-line DNs.
1531 [Ben Laurie (CHATS)]
1533 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1534 resizing buffers containing secrets, and use where appropriate.
1535 [Ben Laurie (CHATS)]
1537 *) Avoid using fixed size buffers for configuration file location.
1538 [Ben Laurie (CHATS)]
1540 *) Avoid filename truncation for various CA files.
1541 [Ben Laurie (CHATS)]
1543 *) Use sizeof in preference to magic numbers.
1544 [Ben Laurie (CHATS)]
1546 *) Avoid filename truncation in cert requests.
1547 [Ben Laurie (CHATS)]
1549 *) Add assertions to check for (supposedly impossible) buffer
1551 [Ben Laurie (CHATS)]
1553 *) Don't cache truncated DNS entries in the local cache (this could
1554 potentially lead to a spoofing attack).
1555 [Ben Laurie (CHATS)]
1557 *) Fix various buffers to be large enough for hex/decimal
1558 representations in a platform independent manner.
1559 [Ben Laurie (CHATS)]
1561 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1562 resizing buffers containing secrets, and use where appropriate.
1563 [Ben Laurie (CHATS)]
1565 *) Add BIO_indent() to avoid much slightly worrying code to do
1567 [Ben Laurie (CHATS)]
1569 *) Convert sprintf()/BIO_puts() to BIO_printf().
1570 [Ben Laurie (CHATS)]
1572 *) buffer_gets() could terminate with the buffer only half
1574 [Ben Laurie (CHATS)]
1576 *) Add assertions to prevent user-supplied crypto functions from
1577 overflowing internal buffers by having large block sizes, etc.
1578 [Ben Laurie (CHATS)]
1580 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1582 [Ben Laurie (CHATS)]
1584 *) Eliminate unused copy of key in RC4.
1585 [Ben Laurie (CHATS)]
1587 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1588 [Ben Laurie (CHATS)]
1590 *) Fix off-by-one error in EGD path.
1591 [Ben Laurie (CHATS)]
1593 *) If RANDFILE path is too long, ignore instead of truncating.
1594 [Ben Laurie (CHATS)]
1596 *) Eliminate unused and incorrectly sized X.509 structure
1598 [Ben Laurie (CHATS)]
1600 *) Eliminate unused and dangerous function knumber().
1601 [Ben Laurie (CHATS)]
1603 *) Eliminate unused and dangerous structure, KSSL_ERR.
1604 [Ben Laurie (CHATS)]
1606 *) Protect against overlong session ID context length in an encoded
1607 session object. Since these are local, this does not appear to be
1609 [Ben Laurie (CHATS)]
1611 *) Change from security patch (see 0.9.6e below) that did not affect
1612 the 0.9.6 release series:
1614 Remote buffer overflow in SSL3 protocol - an attacker could
1615 supply an oversized master key in Kerberos-enabled versions.
1617 [Ben Laurie (CHATS)]
1619 *) Change the SSL kerb5 codes to match RFC 2712.
1622 *) Make -nameopt work fully for req and add -reqopt switch.
1623 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1625 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1626 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1628 *) Make sure tests can be performed even if the corresponding algorithms
1629 have been removed entirely. This was also the last step to make
1630 OpenSSL compilable with DJGPP under all reasonable conditions.
1631 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1633 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1634 to allow version independent disabling of normally unselected ciphers,
1635 which may be activated as a side-effect of selecting a single cipher.
1637 (E.g., cipher list string "RSA" enables ciphersuites that are left
1638 out of "ALL" because they do not provide symmetric encryption.
1639 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1640 [Lutz Jaenicke, Bodo Moeller]
1642 *) Add appropriate support for separate platform-dependent build
1643 directories. The recommended way to make a platform-dependent
1644 build directory is the following (tested on Linux), maybe with
1647 # Place yourself outside of the OpenSSL source tree. In
1648 # this example, the environment variable OPENSSL_SOURCE
1649 # is assumed to contain the absolute OpenSSL source directory.
1650 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1651 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1652 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1653 mkdir -p `dirname $F`
1654 ln -s $OPENSSL_SOURCE/$F $F
1657 To be absolutely sure not to disturb the source tree, a "make clean"
1658 is a good thing. If it isn't successfull, don't worry about it,
1659 it probably means the source directory is very clean.
1662 *) Make sure any ENGINE control commands make local copies of string
1663 pointers passed to them whenever necessary. Otherwise it is possible
1664 the caller may have overwritten (or deallocated) the original string
1665 data when a later ENGINE operation tries to use the stored values.
1666 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1668 *) Improve diagnostics in file reading and command-line digests.
1669 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1671 *) Add AES modes CFB and OFB to the object database. Correct an
1672 error in AES-CFB decryption.
1675 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1676 allows existing EVP_CIPHER_CTX structures to be reused after
1677 calling EVP_*Final(). This behaviour is used by encryption
1678 BIOs and some applications. This has the side effect that
1679 applications must explicitly clean up cipher contexts with
1680 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1683 *) Check the values of dna and dnb in bn_mul_recursive before calling
1684 bn_mul_comba (a non zero value means the a or b arrays do not contain
1685 n2 elements) and fallback to bn_mul_normal if either is not zero.
1688 *) Fix escaping of non-ASCII characters when using the -subj option
1689 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1692 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1693 form for "surname", serialNumber has no short form.
1694 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1695 therefore remove "mail" short name for "internet 7".
1696 The OID for unique identifiers in X509 certificates is
1697 x500UniqueIdentifier, not uniqueIdentifier.
1698 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1701 *) Add an "init" command to the ENGINE config module and auto initialize
1702 ENGINEs. Without any "init" command the ENGINE will be initialized
1703 after all ctrl commands have been executed on it. If init=1 the
1704 ENGINE is initailized at that point (ctrls before that point are run
1705 on the uninitialized ENGINE and after on the initialized one). If
1706 init=0 then the ENGINE will not be iniatialized at all.
1709 *) Fix the 'app_verify_callback' interface so that the user-defined
1710 argument is actually passed to the callback: In the
1711 SSL_CTX_set_cert_verify_callback() prototype, the callback
1712 declaration has been changed from
1715 int (*cb)(X509_STORE_CTX *,void *);
1716 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1717 i=s->ctx->app_verify_callback(&ctx)
1718 has been changed into
1719 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1721 To update applications using SSL_CTX_set_cert_verify_callback(),
1722 a dummy argument can be added to their callback functions.
1723 [D. K. Smetters <smetters@parc.xerox.com>]
1725 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1726 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1728 *) Add and OPENSSL_LOAD_CONF define which will cause
1729 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1730 This allows older applications to transparently support certain
1731 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1732 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1733 load the config file and OPENSSL_add_all_algorithms_conf() which will
1734 always load it have also been added.
1737 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1738 Adjust NIDs and EVP layer.
1739 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1741 *) Config modules support in openssl utility.
1743 Most commands now load modules from the config file,
1744 though in a few (such as version) this isn't done
1745 because it couldn't be used for anything.
1747 In the case of ca and req the config file used is
1748 the same as the utility itself: that is the -config
1749 command line option can be used to specify an
1753 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1754 use "openssl_conf" if filename is NULL use default openssl config file.
1757 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1758 config section name. Add a new flag to tolerate a missing config file
1759 and move code to CONF_modules_load_file().
1762 *) Support for crypto accelerator cards from Accelerated Encryption
1763 Processing, www.aep.ie. (Use engine 'aep')
1764 The support was copied from 0.9.6c [engine] and adapted/corrected
1765 to work with the new engine framework.
1766 [AEP Inc. and Richard Levitte]
1768 *) Support for SureWare crypto accelerator cards from Baltimore
1769 Technologies. (Use engine 'sureware')
1770 The support was copied from 0.9.6c [engine] and adapted
1771 to work with the new engine framework.
1774 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1775 make the newer ENGINE framework commands for the CHIL engine work.
1776 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1778 *) Make it possible to produce shared libraries on ReliantUNIX.
1779 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1781 *) Add the configuration target debug-linux-ppro.
1782 Make 'openssl rsa' use the general key loading routines
1783 implemented in apps.c, and make those routines able to
1784 handle the key format FORMAT_NETSCAPE and the variant
1786 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1788 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1789 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1791 *) Add -keyform to rsautl, and document -engine.
1792 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1794 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1795 BIO_R_NO_SUCH_FILE error code rather than the generic
1796 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1799 *) Add new functions
1801 ERR_peek_last_error_line
1802 ERR_peek_last_error_line_data.
1803 These are similar to
1806 ERR_peek_error_line_data,
1807 but report on the latest error recorded rather than the first one
1808 still in the error queue.
1809 [Ben Laurie, Bodo Moeller]
1811 *) default_algorithms option in ENGINE config module. This allows things
1813 default_algorithms = ALL
1814 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1817 *) Prelminary ENGINE config module.
1820 *) New experimental application configuration code.
1823 *) Change the AES code to follow the same name structure as all other
1824 symmetric ciphers, and behave the same way. Move everything to
1825 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1826 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1828 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1829 [Ben Laurie and Theo de Raadt]
1831 *) Add option to output public keys in req command.
1832 [Massimiliano Pala madwolf@openca.org]
1834 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1835 (up to about 10% better than before for P-192 and P-224).
1838 *) New functions/macros
1840 SSL_CTX_set_msg_callback(ctx, cb)
1841 SSL_CTX_set_msg_callback_arg(ctx, arg)
1842 SSL_set_msg_callback(ssl, cb)
1843 SSL_set_msg_callback_arg(ssl, arg)
1845 to request calling a callback function
1847 void cb(int write_p, int version, int content_type,
1848 const void *buf, size_t len, SSL *ssl, void *arg)
1850 whenever a protocol message has been completely received
1851 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1852 protocol version according to which the SSL library interprets
1853 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1854 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1855 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1856 specification (change_cipher_spec(20), alert(21), handshake(22)).
1857 'buf' and 'len' point to the actual message, 'ssl' to the
1858 SSL object, and 'arg' is the application-defined value set by
1859 SSL[_CTX]_set_msg_callback_arg().
1861 'openssl s_client' and 'openssl s_server' have new '-msg' options
1862 to enable a callback that displays all protocol messages.
1865 *) Change the shared library support so shared libraries are built as
1866 soon as the corresponding static library is finished, and thereby get
1867 openssl and the test programs linked against the shared library.
1868 This still only happens when the keyword "shard" has been given to
1869 the configuration scripts.
1871 NOTE: shared library support is still an experimental thing, and
1872 backward binary compatibility is still not guaranteed.
1873 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1875 *) Add support for Subject Information Access extension.
1876 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1878 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1879 additional bytes when new memory had to be allocated, not just
1880 when reusing an existing buffer.
1883 *) New command line and configuration option 'utf8' for the req command.
1884 This allows field values to be specified as UTF8 strings.
1887 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1888 runs for the former and machine-readable output for the latter.
1891 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1892 of the e-mail address in the DN (i.e., it will go into a certificate
1893 extension only). The new configuration file option 'email_in_dn = no'
1894 has the same effect.
1895 [Massimiliano Pala madwolf@openca.org]
1897 *) Change all functions with names starting with des_ to be starting
1898 with DES_ instead. Add wrappers that are compatible with libdes,
1899 but are named _ossl_old_des_*. Finally, add macros that map the
1900 des_* symbols to the corresponding _ossl_old_des_* if libdes
1901 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1902 desired, the des_* symbols will be mapped to DES_*, with one
1905 Since we provide two compatibility mappings, the user needs to
1906 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1907 compatibility is desired. The default (i.e., when that macro
1908 isn't defined) is OpenSSL 0.9.6c compatibility.
1910 There are also macros that enable and disable the support of old
1911 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1912 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1913 are defined, the default will apply: to support the old des routines.
1915 In either case, one must include openssl/des.h to get the correct
1916 definitions. Do not try to just include openssl/des_old.h, that
1919 NOTE: This is a major break of an old API into a new one. Software
1920 authors are encouraged to switch to the DES_ style functions. Some
1921 time in the future, des_old.h and the libdes compatibility functions
1922 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1923 default), and then completely removed.
1926 *) Test for certificates which contain unsupported critical extensions.
1927 If such a certificate is found during a verify operation it is
1928 rejected by default: this behaviour can be overridden by either
1929 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1930 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1931 X509_supported_extension() has also been added which returns 1 if a
1932 particular extension is supported.
1935 *) Modify the behaviour of EVP cipher functions in similar way to digests
1936 to retain compatibility with existing code.
1939 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1940 compatibility with existing code. In particular the 'ctx' parameter does
1941 not have to be to be initialized before the call to EVP_DigestInit() and
1942 it is tidied up after a call to EVP_DigestFinal(). New function
1943 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1944 EVP_MD_CTX_copy() changed to not require the destination to be
1945 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1946 requires the destination to be valid.
1948 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1949 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1952 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1953 so that complete 'Handshake' protocol structures are kept in memory
1954 instead of overwriting 'msg_type' and 'length' with 'body' data.
1957 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1958 [Massimo Santin via Richard Levitte]
1960 *) Major restructuring to the underlying ENGINE code. This includes
1961 reduction of linker bloat, separation of pure "ENGINE" manipulation
1962 (initialisation, etc) from functionality dealing with implementations
1963 of specific crypto iterfaces. This change also introduces integrated
1964 support for symmetric ciphers and digest implementations - so ENGINEs
1965 can now accelerate these by providing EVP_CIPHER and EVP_MD
1966 implementations of their own. This is detailed in crypto/engine/README
1967 as it couldn't be adequately described here. However, there are a few
1968 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1969 were changed in the original introduction of ENGINE code have now
1970 reverted back - the hooking from this code to ENGINE is now a good
1971 deal more passive and at run-time, operations deal directly with
1972 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1973 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1974 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1975 they were not being used by the framework as there is no concept of a
1976 BIGNUM_METHOD and they could not be generalised to the new
1977 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1978 ENGINE_cpy() has been removed as it cannot be consistently defined in
1982 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1985 *) Change mkdef.pl to sort symbols that get the same entry number,
1986 and make sure the automatically generated functions ERR_load_*
1987 become part of libeay.num as well.
1990 *) New function SSL_renegotiate_pending(). This returns true once
1991 renegotiation has been requested (either SSL_renegotiate() call
1992 or HelloRequest/ClientHello receveived from the peer) and becomes
1993 false once a handshake has been completed.
1994 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1995 sends a HelloRequest, but does not ensure that a handshake takes
1996 place. SSL_renegotiate_pending() is useful for checking if the
1997 client has followed the request.)
2000 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2001 By default, clients may request session resumption even during
2002 renegotiation (if session ID contexts permit); with this option,
2003 session resumption is possible only in the first handshake.
2005 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2006 more bits available for options that should not be part of
2007 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2010 *) Add some demos for certificate and certificate request creation.
2013 *) Make maximum certificate chain size accepted from the peer application
2014 settable (SSL*_get/set_max_cert_list()), as proposed by
2015 "Douglas E. Engert" <deengert@anl.gov>.
2018 *) Add support for shared libraries for Unixware-7
2019 (Boyd Lynn Gerber <gerberb@zenez.com>).
2022 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2023 be done prior to destruction. Use this to unload error strings from
2024 ENGINEs that load their own error strings. NB: This adds two new API
2025 functions to "get" and "set" this destroy handler in an ENGINE.
2028 *) Alter all existing ENGINE implementations (except "openssl" and
2029 "openbsd") to dynamically instantiate their own error strings. This
2030 makes them more flexible to be built both as statically-linked ENGINEs
2031 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2032 Also, add stub code to each that makes building them as self-contained
2033 shared-libraries easier (see README.ENGINE).
2036 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2037 implementations into applications that are completely implemented in
2038 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2039 commands that can be used to configure what shared-library to load and
2040 to control aspects of the way it is handled. Also, made an update to
2041 the README.ENGINE file that brings its information up-to-date and
2042 provides some information and instructions on the "dynamic" ENGINE
2043 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2046 *) Make it possible to unload ranges of ERR strings with a new
2047 "ERR_unload_strings" function.
2050 *) Add a copy() function to EVP_MD.
2053 *) Make EVP_MD routines take a context pointer instead of just the
2054 md_data void pointer.
2057 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2058 that the digest can only process a single chunk of data
2059 (typically because it is provided by a piece of
2060 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2061 is only going to provide a single chunk of data, and hence the
2062 framework needn't accumulate the data for oneshot drivers.
2065 *) As with "ERR", make it possible to replace the underlying "ex_data"
2066 functions. This change also alters the storage and management of global
2067 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2068 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2069 index counters. The API functions that use this state have been changed
2070 to take a "class_index" rather than pointers to the class's local STACK
2071 and counter, and there is now an API function to dynamically create new
2072 classes. This centralisation allows us to (a) plug a lot of the
2073 thread-safety problems that existed, and (b) makes it possible to clean
2074 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2075 such data would previously have always leaked in application code and
2076 workarounds were in place to make the memory debugging turn a blind eye
2077 to it. Application code that doesn't use this new function will still
2078 leak as before, but their memory debugging output will announce it now
2079 rather than letting it slide.
2081 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2082 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2083 has a return value to indicate success or failure.
2086 *) Make it possible to replace the underlying "ERR" functions such that the
2087 global state (2 LHASH tables and 2 locks) is only used by the "default"
2088 implementation. This change also adds two functions to "get" and "set"
2089 the implementation prior to it being automatically set the first time
2090 any other ERR function takes place. Ie. an application can call "get",
2091 pass the return value to a module it has just loaded, and that module
2092 can call its own "set" function using that value. This means the
2093 module's "ERR" operations will use (and modify) the error state in the
2094 application and not in its own statically linked copy of OpenSSL code.
2097 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2098 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2099 the operation, and provides a more encapsulated way for external code
2100 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2101 to use these functions rather than manually incrementing the counts.
2103 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2106 *) Add EVP test program.
2109 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2112 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2113 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2114 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2115 These allow a CRL to be built without having to access X509_CRL fields
2116 directly. Modify 'ca' application to use new functions.
2119 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2120 bug workarounds. Rollback attack detection is a security feature.
2121 The problem will only arise on OpenSSL servers when TLSv1 is not
2122 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2123 Software authors not wanting to support TLSv1 will have special reasons
2124 for their choice and can explicitly enable this option.
2125 [Bodo Moeller, Lutz Jaenicke]
2127 *) Rationalise EVP so it can be extended: don't include a union of
2128 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2129 (similar to those existing for EVP_CIPHER_CTX).
2134 EVP_MD_CTX_init(&md); /* new function call */
2135 EVP_DigestInit(&md, EVP_sha1());
2136 EVP_DigestUpdate(&md, in, len);
2137 EVP_DigestFinal(&md, out, NULL);
2138 EVP_MD_CTX_cleanup(&md); /* new function call */
2142 *) Make DES key schedule conform to the usual scheme, as well as
2143 correcting its structure. This means that calls to DES functions
2144 now have to pass a pointer to a des_key_schedule instead of a
2145 plain des_key_schedule (which was actually always a pointer
2148 des_key_schedule ks;
2150 des_set_key_checked(..., &ks);
2151 des_ncbc_encrypt(..., &ks, ...);
2153 (Note that a later change renames 'des_...' into 'DES_...'.)
2156 *) Initial reduction of linker bloat: the use of some functions, such as
2157 PEM causes large amounts of unused functions to be linked in due to
2158 poor organisation. For example pem_all.c contains every PEM function
2159 which has a knock on effect of linking in large amounts of (unused)
2160 ASN1 code. Grouping together similar functions and splitting unrelated
2161 functions prevents this.
2164 *) Cleanup of EVP macros.
2167 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2168 correct _ecb suffix.
2171 *) Add initial OCSP responder support to ocsp application. The
2172 revocation information is handled using the text based index
2173 use by the ca application. The responder can either handle
2174 requests generated internally, supplied in files (for example
2175 via a CGI script) or using an internal minimal server.
2178 *) Add configuration choices to get zlib compression for TLS.
2181 *) Changes to Kerberos SSL for RFC 2712 compliance:
2182 1. Implemented real KerberosWrapper, instead of just using
2183 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2184 2. Implemented optional authenticator field of KerberosWrapper.
2186 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2187 and authenticator structs; see crypto/krb5/.
2189 Generalized Kerberos calls to support multiple Kerberos libraries.
2190 [Vern Staats <staatsvr@asc.hpc.mil>,
2191 Jeffrey Altman <jaltman@columbia.edu>
2192 via Richard Levitte]
2194 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2195 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2196 values for each of the key sizes rather than having just
2197 parameters (and 'speed' generating keys each time).
2200 *) Speed up EVP routines.
2203 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2204 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2205 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2206 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2208 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2209 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2210 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2213 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2215 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2218 *) Added the OS2-EMX target.
2219 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2221 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2222 to support NCONF routines in extension code. New function CONF_set_nconf()
2223 to allow functions which take an NCONF to also handle the old LHASH
2224 structure: this means that the old CONF compatible routines can be
2225 retained (in particular wrt extensions) without having to duplicate the
2226 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2229 *) Enhance the general user interface with mechanisms for inner control
2230 and with possibilities to have yes/no kind of prompts.
2233 *) Change all calls to low level digest routines in the library and
2234 applications to use EVP. Add missing calls to HMAC_cleanup() and
2235 don't assume HMAC_CTX can be copied using memcpy().
2236 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2238 *) Add the possibility to control engines through control names but with
2239 arbitrary arguments instead of just a string.
2240 Change the key loaders to take a UI_METHOD instead of a callback
2241 function pointer. NOTE: this breaks binary compatibility with earlier
2242 versions of OpenSSL [engine].
2243 Adapt the nCipher code for these new conditions and add a card insertion
2247 *) Enhance the general user interface with mechanisms to better support
2248 dialog box interfaces, application-defined prompts, the possibility
2249 to use defaults (for example default passwords from somewhere else)
2250 and interrupts/cancellations.
2253 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2254 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2257 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2258 tidy up some unnecessarily weird code in 'sk_new()').
2259 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2261 *) Change the key loading routines for ENGINEs to use the same kind
2262 callback (pem_password_cb) as all other routines that need this
2266 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2267 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2268 than this minimum value is recommended.
2271 *) New random seeder for OpenVMS, using the system process statistics
2272 that are easily reachable.
2275 *) Windows apparently can't transparently handle global
2276 variables defined in DLLs. Initialisations such as:
2278 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2280 wont compile. This is used by the any applications that need to
2281 declare their own ASN1 modules. This was fixed by adding the option
2282 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2283 needed for static libraries under Win32.
2286 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2287 setting of purpose and trust fields. New X509_STORE trust and
2288 purpose functions and tidy up setting in other SSL functions.
2291 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2292 structure. These are inherited by X509_STORE_CTX when it is
2293 initialised. This allows various defaults to be set in the
2294 X509_STORE structure (such as flags for CRL checking and custom
2295 purpose or trust settings) for functions which only use X509_STORE_CTX
2296 internally such as S/MIME.
2298 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2299 trust settings if they are not set in X509_STORE. This allows X509_STORE
2300 purposes and trust (in S/MIME for example) to override any set by default.
2302 Add command line options for CRL checking to smime, s_client and s_server
2306 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2307 are set then the CRL is looked up in the X509_STORE structure and
2308 its validity and signature checked, then if the certificate is found
2309 in the CRL the verify fails with a revoked error.
2311 Various new CRL related callbacks added to X509_STORE_CTX structure.
2313 Command line options added to 'verify' application to support this.
2315 This needs some additional work, such as being able to handle multiple
2316 CRLs with different times, extension based lookup (rather than just
2317 by subject name) and ultimately more complete V2 CRL extension
2321 *) Add a general user interface API (crypto/ui/). This is designed
2322 to replace things like des_read_password and friends (backward
2323 compatibility functions using this new API are provided).
2324 The purpose is to remove prompting functions from the DES code
2325 section as well as provide for prompting through dialog boxes in
2326 a window system and the like.
2329 *) Add "ex_data" support to ENGINE so implementations can add state at a
2330 per-structure level rather than having to store it globally.
2333 *) Make it possible for ENGINE structures to be copied when retrieved by
2334 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2335 This causes the "original" ENGINE structure to act like a template,
2336 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2337 operational state can be localised to each ENGINE structure, despite the
2338 fact they all share the same "methods". New ENGINE structures returned in
2339 this case have no functional references and the return value is the single
2340 structural reference. This matches the single structural reference returned
2341 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2345 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2346 needs to match any other type at all we need to manually clear the
2350 *) Changes to the "openssl engine" utility to include;
2351 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2352 about an ENGINE's available control commands.
2353 - executing control commands from command line arguments using the
2354 '-pre' and '-post' switches. '-post' is only used if '-t' is
2355 specified and the ENGINE is successfully initialised. The syntax for
2356 the individual commands are colon-separated, for example;
2357 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2360 *) New dynamic control command support for ENGINEs. ENGINEs can now
2361 declare their own commands (numbers), names (strings), descriptions,
2362 and input types for run-time discovery by calling applications. A
2363 subset of these commands are implicitly classed as "executable"
2364 depending on their input type, and only these can be invoked through
2365 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2366 can be based on user input, config files, etc). The distinction is
2367 that "executable" commands cannot return anything other than a boolean
2368 result and can only support numeric or string input, whereas some
2369 discoverable commands may only be for direct use through
2370 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2371 pointers, or other custom uses. The "executable" commands are to
2372 support parameterisations of ENGINE behaviour that can be
2373 unambiguously defined by ENGINEs and used consistently across any
2374 OpenSSL-based application. Commands have been added to all the
2375 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2376 control over shared-library paths without source code alterations.
2379 *) Changed all ENGINE implementations to dynamically allocate their
2380 ENGINEs rather than declaring them statically. Apart from this being
2381 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2382 this also allows the implementations to compile without using the
2383 internal engine_int.h header.
2386 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2387 'const' value. Any code that should be able to modify a RAND_METHOD
2388 should already have non-const pointers to it (ie. they should only
2389 modify their own ones).
2392 *) Made a variety of little tweaks to the ENGINE code.
2393 - "atalla" and "ubsec" string definitions were moved from header files
2394 to C code. "nuron" string definitions were placed in variables
2395 rather than hard-coded - allowing parameterisation of these values
2396 later on via ctrl() commands.
2397 - Removed unused "#if 0"'d code.
2398 - Fixed engine list iteration code so it uses ENGINE_free() to release
2399 structural references.
2400 - Constified the RAND_METHOD element of ENGINE structures.
2401 - Constified various get/set functions as appropriate and added
2402 missing functions (including a catch-all ENGINE_cpy that duplicates
2403 all ENGINE values onto a new ENGINE except reference counts/state).
2404 - Removed NULL parameter checks in get/set functions. Setting a method
2405 or function to NULL is a way of cancelling out a previously set
2406 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2407 and doesn't justify the extra error symbols and code.
2408 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2409 flags from engine_int.h to engine.h.
2410 - Changed prototypes for ENGINE handler functions (init(), finish(),
2411 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2414 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2415 to the algorithm using long division. The binary algorithm can be
2416 used only if the modulus is odd. On 32-bit systems, it is faster
2417 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2418 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2419 up to 450 bits. In 64-bit environments, the binary algorithm
2420 appears to be advantageous for much longer moduli; here we use it
2421 for moduli up to 2048 bits.
2424 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2425 could not support the combine flag in choice fields.
2428 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2429 extensions from a certificate request to the certificate.
2432 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2433 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2434 file: this allows the display of the certificate about to be
2435 signed to be customised, to allow certain fields to be included
2436 or excluded and extension details. The old system didn't display
2437 multicharacter strings properly, omitted fields not in the policy
2438 and couldn't display additional details such as extensions.
2441 *) Function EC_POINTs_mul for multiple scalar multiplication
2442 of an arbitrary number of elliptic curve points
2443 \sum scalars[i]*points[i],
2444 optionally including the generator defined for the EC_GROUP:
2445 scalar*generator + \sum scalars[i]*points[i].
2447 EC_POINT_mul is a simple wrapper function for the typical case
2448 that the point list has just one item (besides the optional
2452 *) First EC_METHODs for curves over GF(p):
2454 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2455 operations and provides various method functions that can also
2456 operate with faster implementations of modular arithmetic.
2458 EC_GFp_mont_method() reuses most functions that are part of
2459 EC_GFp_simple_method, but uses Montgomery arithmetic.
2461 [Bodo Moeller; point addition and point doubling
2462 implementation directly derived from source code provided by
2463 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2465 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2466 crypto/ec/ec_lib.c):
2468 Curves are EC_GROUP objects (with an optional group generator)
2469 based on EC_METHODs that are built into the library.
2471 Points are EC_POINT objects based on EC_GROUP objects.
2473 Most of the framework would be able to handle curves over arbitrary
2474 finite fields, but as there are no obvious types for fields other
2475 than GF(p), some functions are limited to that for now.
2478 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2479 that the file contains a complete HTTP response.
2482 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2483 change the def and num file printf format specifier from "%-40sXXX"
2484 to "%-39s XXX". The latter will always guarantee a space after the
2485 field while the former will cause them to run together if the field
2486 is 40 of more characters long.
2489 *) Constify the cipher and digest 'method' functions and structures
2490 and modify related functions to take constant EVP_MD and EVP_CIPHER
2494 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2495 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2498 *) Modify EVP_Digest*() routines so they now return values. Although the
2499 internal software routines can never fail additional hardware versions
2503 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2505 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2506 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2509 ERR_R_NESTED_ASN1_ERROR
2511 ERR_R_MISSING_ASN1_EOS
2512 were 4 .. 9, conflicting with
2513 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2515 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2516 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2518 Add new error code 'ERR_R_INTERNAL_ERROR'.
2521 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2525 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2526 sets the subject name for a new request or supersedes the
2527 subject name in a given request. Formats that can be parsed are
2528 'CN=Some Name, OU=myOU, C=IT'
2530 'CN=Some Name/OU=myOU/C=IT'.
2532 Add options '-batch' and '-verbose' to 'openssl req'.
2533 [Massimiliano Pala <madwolf@hackmasters.net>]
2535 *) Introduce the possibility to access global variables through
2536 functions on platform were that's the best way to handle exporting
2537 global variables in shared libraries. To enable this functionality,
2538 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2539 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2540 is normally done by Configure or something similar).
2542 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2543 in the source file (foo.c) like this:
2545 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2546 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2548 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2549 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2551 OPENSSL_DECLARE_GLOBAL(int,foo);
2552 #define foo OPENSSL_GLOBAL_REF(foo)
2553 OPENSSL_DECLARE_GLOBAL(double,bar);
2554 #define bar OPENSSL_GLOBAL_REF(bar)
2556 The #defines are very important, and therefore so is including the
2557 header file everywhere where the defined globals are used.
2559 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2560 of ASN.1 items, but that structure is a bit different.
2562 The largest change is in util/mkdef.pl which has been enhanced with
2563 better and easier to understand logic to choose which symbols should
2564 go into the Windows .def files as well as a number of fixes and code
2565 cleanup (among others, algorithm keywords are now sorted
2566 lexicographically to avoid constant rewrites).
2569 *) In BN_div() keep a copy of the sign of 'num' before writing the
2570 result to 'rm' because if rm==num the value will be overwritten
2571 and produce the wrong result if 'num' is negative: this caused
2572 problems with BN_mod() and BN_nnmod().
2575 *) Function OCSP_request_verify(). This checks the signature on an
2576 OCSP request and verifies the signer certificate. The signer
2577 certificate is just checked for a generic purpose and OCSP request
2581 *) Add OCSP_check_validity() function to check the validity of OCSP
2582 responses. OCSP responses are prepared in real time and may only
2583 be a few seconds old. Simply checking that the current time lies
2584 between thisUpdate and nextUpdate max reject otherwise valid responses
2585 caused by either OCSP responder or client clock inaccuracy. Instead
2586 we allow thisUpdate and nextUpdate to fall within a certain period of
2587 the current time. The age of the response can also optionally be
2588 checked. Two new options -validity_period and -status_age added to
2592 *) If signature or public key algorithm is unrecognized print out its
2593 OID rather that just UNKNOWN.
2596 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2597 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2598 ID to be generated from the issuer certificate alone which can then be
2599 passed to OCSP_id_issuer_cmp().
2602 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2603 ASN1 modules to export functions returning ASN1_ITEM pointers
2604 instead of the ASN1_ITEM structures themselves. This adds several
2605 new macros which allow the underlying ASN1 function/structure to
2606 be accessed transparently. As a result code should not use ASN1_ITEM
2607 references directly (such as &X509_it) but instead use the relevant
2608 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2609 use of the new ASN1 code on platforms where exporting structures
2610 is problematical (for example in shared libraries) but exporting
2611 functions returning pointers to structures is not.
2614 *) Add support for overriding the generation of SSL/TLS session IDs.
2615 These callbacks can be registered either in an SSL_CTX or per SSL.
2616 The purpose of this is to allow applications to control, if they wish,
2617 the arbitrary values chosen for use as session IDs, particularly as it
2618 can be useful for session caching in multiple-server environments. A
2619 command-line switch for testing this (and any client code that wishes
2620 to use such a feature) has been added to "s_server".
2621 [Geoff Thorpe, Lutz Jaenicke]
2623 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2624 of the form '#if defined(...) || defined(...) || ...' and
2625 '#if !defined(...) && !defined(...) && ...'. This also avoids
2626 the growing number of special cases it was previously handling.
2629 *) Make all configuration macros available for application by making
2630 sure they are available in opensslconf.h, by giving them names starting
2631 with "OPENSSL_" to avoid conflicts with other packages and by making
2632 sure e_os2.h will cover all platform-specific cases together with
2634 Additionally, it is now possible to define configuration/platform-
2635 specific names (called "system identities"). In the C code, these
2636 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2637 macro with the name beginning with "OPENSSL_SYS_", which is determined
2638 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2642 *) New option -set_serial to 'req' and 'x509' this allows the serial
2643 number to use to be specified on the command line. Previously self
2644 signed certificates were hard coded with serial number 0 and the
2645 CA options of 'x509' had to use a serial number in a file which was
2649 *) New options to 'ca' utility to support V2 CRL entry extensions.
2650 Currently CRL reason, invalidity date and hold instruction are
2651 supported. Add new CRL extensions to V3 code and some new objects.
2654 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2655 disable standard block padding (aka PKCS#5 padding) in the EVP
2656 API, which was previously mandatory. This means that the data is
2657 not padded in any way and so the total length much be a multiple
2658 of the block size, otherwise an error occurs.
2661 *) Initial (incomplete) OCSP SSL support.
2664 *) New function OCSP_parse_url(). This splits up a URL into its host,
2665 port and path components: primarily to parse OCSP URLs. New -url
2666 option to ocsp utility.
2669 *) New nonce behavior. The return value of OCSP_check_nonce() now
2670 reflects the various checks performed. Applications can decide
2671 whether to tolerate certain situations such as an absent nonce
2672 in a response when one was present in a request: the ocsp application
2673 just prints out a warning. New function OCSP_add1_basic_nonce()
2674 this is to allow responders to include a nonce in a response even if
2675 the request is nonce-less.
2678 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2679 skipped when using openssl x509 multiple times on a single input file,
2680 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2683 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2684 set string type: to handle setting ASN1_TIME structures. Fix ca
2685 utility to correctly initialize revocation date of CRLs.
2688 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2689 the clients preferred ciphersuites and rather use its own preferences.
2690 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2691 Internet Explorer by ensuring unchanged hash method during stepup.
2692 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2695 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2696 to aes and add a new 'exist' option to print out symbols that don't
2700 *) Additional options to ocsp utility to allow flags to be set and
2701 additional certificates supplied.
2704 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2705 OCSP client a number of certificate to only verify the response
2709 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2710 handle the new API. Currently only ECB, CBC modes supported. Add new
2713 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2714 Encryption Standard (AES) Ciphersuites for Transport Layer
2715 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2716 not enabled by default and were not part of the "ALL" ciphersuite
2717 alias because they were not yet official; they could be
2718 explicitly requested by specifying the "AESdraft" ciphersuite
2719 group alias. In the final release of OpenSSL 0.9.7, the group
2720 alias is called "AES" and is part of "ALL".)
2721 [Ben Laurie, Steve Henson, Bodo Moeller]
2723 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2724 request to response.
2727 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2728 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2729 extract information from a certificate request. OCSP_response_create()
2730 creates a response and optionally adds a basic response structure.
2731 OCSP_basic_add1_status() adds a complete single response to a basic
2732 response and returns the OCSP_SINGLERESP structure just added (to allow
2733 extensions to be included for example). OCSP_basic_add1_cert() adds a
2734 certificate to a basic response and OCSP_basic_sign() signs a basic
2735 response with various flags. New helper functions ASN1_TIME_check()
2736 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2737 (converts ASN1_TIME to GeneralizedTime).
2740 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2741 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2742 structure from a certificate. X509_pubkey_digest() digests the public_key
2743 contents: this is used in various key identifiers.
2746 *) Make sk_sort() tolerate a NULL argument.
2747 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2749 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2750 passed by the function are trusted implicitly. If any of them signed the
2751 response then it is assumed to be valid and is not verified.
2754 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2755 to data. This was previously part of the PKCS7 ASN1 code. This
2756 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2757 [Steve Henson, reported by Kenneth R. Robinette
2758 <support@securenetterm.com>]
2760 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2761 routines: without these tracing memory leaks is very painful.
2762 Fix leaks in PKCS12 and PKCS7 routines.
2765 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2766 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2767 effectively meant GeneralizedTime would never be used. Now it
2768 is initialised to -1 but X509_time_adj() now has to check the value
2769 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2770 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2771 [Steve Henson, reported by Kenneth R. Robinette
2772 <support@securenetterm.com>]
2774 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2775 result in a zero length in the ASN1_INTEGER structure which was
2776 not consistent with the structure when d2i_ASN1_INTEGER() was used
2777 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2778 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2779 where it did not print out a minus for negative ASN1_INTEGER.
2782 *) Add summary printout to ocsp utility. The various functions which
2783 convert status values to strings have been renamed to:
2784 OCSP_response_status_str(), OCSP_cert_status_str() and
2785 OCSP_crl_reason_str() and are no longer static. New options
2786 to verify nonce values and to disable verification. OCSP response
2787 printout format cleaned up.
2790 *) Add additional OCSP certificate checks. These are those specified
2791 in RFC2560. This consists of two separate checks: the CA of the
2792 certificate being checked must either be the OCSP signer certificate
2793 or the issuer of the OCSP signer certificate. In the latter case the
2794 OCSP signer certificate must contain the OCSP signing extended key
2795 usage. This check is performed by attempting to match the OCSP
2796 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2797 in the OCSP_CERTID structures of the response.
2800 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2801 and related routines. This uses the standard OpenSSL certificate
2802 verify routines to perform initial checks (just CA validity) and
2803 to obtain the certificate chain. Then additional checks will be
2804 performed on the chain. Currently the root CA is checked to see
2805 if it is explicitly trusted for OCSP signing. This is used to set
2806 a root CA as a global signing root: that is any certificate that
2807 chains to that CA is an acceptable OCSP signing certificate.
2810 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2811 extensions from a separate configuration file.
2812 As when reading extensions from the main configuration file,
2813 the '-extensions ...' option may be used for specifying the
2815 [Massimiliano Pala <madwolf@comune.modena.it>]
2817 *) New OCSP utility. Allows OCSP requests to be generated or
2818 read. The request can be sent to a responder and the output
2819 parsed, outputed or printed in text form. Not complete yet:
2820 still needs to check the OCSP response validity.
2823 *) New subcommands for 'openssl ca':
2824 'openssl ca -status <serial>' prints the status of the cert with
2825 the given serial number (according to the index file).
2826 'openssl ca -updatedb' updates the expiry status of certificates
2828 [Massimiliano Pala <madwolf@comune.modena.it>]
2830 *) New '-newreq-nodes' command option to CA.pl. This is like
2831 '-newreq', but calls 'openssl req' with the '-nodes' option
2832 so that the resulting key is not encrypted.
2833 [Damien Miller <djm@mindrot.org>]
2835 *) New configuration for the GNU Hurd.
2836 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2838 *) Initial code to implement OCSP basic response verify. This
2839 is currently incomplete. Currently just finds the signer's
2840 certificate and verifies the signature on the response.
2843 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2844 value of OPENSSLDIR. This is available via the new '-d' option
2845 to 'openssl version', and is also included in 'openssl version -a'.
2848 *) Allowing defining memory allocation callbacks that will be given
2849 file name and line number information in additional arguments
2850 (a const char* and an int). The basic functionality remains, as
2851 well as the original possibility to just replace malloc(),
2852 realloc() and free() by functions that do not know about these
2853 additional arguments. To register and find out the current
2854 settings for extended allocation functions, the following
2855 functions are provided:
2857 CRYPTO_set_mem_ex_functions
2858 CRYPTO_set_locked_mem_ex_functions
2859 CRYPTO_get_mem_ex_functions
2860 CRYPTO_get_locked_mem_ex_functions
2862 These work the same way as CRYPTO_set_mem_functions and friends.
2863 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2864 extended allocation function is enabled.
2865 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2866 a conventional allocation function is enabled.
2867 [Richard Levitte, Bodo Moeller]
2869 *) Finish off removing the remaining LHASH function pointer casts.
2870 There should no longer be any prototype-casting required when using
2871 the LHASH abstraction, and any casts that remain are "bugs". See
2872 the callback types and macros at the head of lhash.h for details
2873 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2876 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2877 If /dev/[u]random devices are not available or do not return enough
2878 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2880 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2881 /etc/entropy will be queried once each in this sequence, quering stops
2882 when enough entropy was collected without querying more sockets.
2885 *) Change the Unix RAND_poll() variant to be able to poll several
2886 random devices, as specified by DEVRANDOM, until a sufficient amount
2887 of data has been collected. We spend at most 10 ms on each file
2888 (select timeout) and read in non-blocking mode. DEVRANDOM now
2889 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2890 (previously it was just the string "/dev/urandom"), so on typical
2891 platforms the 10 ms delay will never occur.
2892 Also separate out the Unix variant to its own file, rand_unix.c.
2893 For VMS, there's a currently-empty rand_vms.c.
2896 *) Move OCSP client related routines to ocsp_cl.c. These
2897 provide utility functions which an application needing
2898 to issue a request to an OCSP responder and analyse the
2899 response will typically need: as opposed to those which an
2900 OCSP responder itself would need which will be added later.
2902 OCSP_request_sign() signs an OCSP request with an API similar
2903 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2904 response. OCSP_response_get1_basic() extracts basic response
2905 from response. OCSP_resp_find_status(): finds and extracts status
2906 information from an OCSP_CERTID structure (which will be created
2907 when the request structure is built). These are built from lower
2908 level functions which work on OCSP_SINGLERESP structures but
2909 wont normally be used unless the application wishes to examine
2910 extensions in the OCSP response for example.
2912 Replace nonce routines with a pair of functions.
2913 OCSP_request_add1_nonce() adds a nonce value and optionally
2914 generates a random value. OCSP_check_nonce() checks the
2915 validity of the nonce in an OCSP response.
2918 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2919 This doesn't copy the supplied OCSP_CERTID and avoids the
2920 need to free up the newly created id. Change return type
2921 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2922 This can then be used to add extensions to the request.
2923 Deleted OCSP_request_new(), since most of its functionality
2924 is now in OCSP_REQUEST_new() (and the case insensitive name
2925 clash) apart from the ability to set the request name which
2926 will be added elsewhere.
2929 *) Update OCSP API. Remove obsolete extensions argument from
2930 various functions. Extensions are now handled using the new
2931 OCSP extension code. New simple OCSP HTTP function which
2932 can be used to send requests and parse the response.
2935 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2936 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2937 uses the special reorder version of SET OF to sort the attributes
2938 and reorder them to match the encoded order. This resolves a long
2939 standing problem: a verify on a PKCS7 structure just after signing
2940 it used to fail because the attribute order did not match the
2941 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2942 it uses the received order. This is necessary to tolerate some broken
2943 software that does not order SET OF. This is handled by encoding
2944 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2945 to produce the required SET OF.
2948 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2949 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2950 files to get correct declarations of the ASN.1 item variables.
2953 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2954 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2955 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2956 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2957 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2958 ASN1_ITEM and no wrapper functions.
2961 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2962 replace the old function pointer based I/O routines. Change most of
2963 the *_d2i_bio() and *_d2i_fp() functions to use these.
2966 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2967 lines, recognice more "algorithms" that can be deselected, and make
2968 it complain about algorithm deselection that isn't recognised.
2971 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2972 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2973 to use new functions. Add NO_ASN1_OLD which can be set to remove
2974 some old style ASN1 functions: this can be used to determine if old
2975 code will still work when these eventually go away.
2978 *) New extension functions for OCSP structures, these follow the
2979 same conventions as certificates and CRLs.
2982 *) New function X509V3_add1_i2d(). This automatically encodes and
2983 adds an extension. Its behaviour can be customised with various
2984 flags to append, replace or delete. Various wrappers added for
2985 certifcates and CRLs.
2988 *) Fix to avoid calling the underlying ASN1 print routine when
2989 an extension cannot be parsed. Correct a typo in the
2990 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2993 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2994 entries for variables.
2997 *) Add functionality to apps/openssl.c for detecting locking
2998 problems: As the program is single-threaded, all we have
2999 to do is register a locking callback using an array for
3000 storing which locks are currently held by the program.
3003 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3004 SSL_get_ex_data_X509_STORE_idx(), which is used in
3005 ssl_verify_cert_chain() and thus can be called at any time
3006 during TLS/SSL handshakes so that thread-safety is essential.
3007 Unfortunately, the ex_data design is not at all suited
3008 for multi-threaded use, so it probably should be abolished.
3011 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3012 [Broadcom, tweaked and integrated by Geoff Thorpe]
3014 *) Move common extension printing code to new function
3015 X509V3_print_extensions(). Reorganise OCSP print routines and
3016 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3019 *) New function X509_signature_print() to remove duplication in some
3023 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3024 set (this was treated exactly the same as SET OF previously). This
3025 is used to reorder the STACK representing the structure to match the
3026 encoding. This will be used to get round a problem where a PKCS7
3027 structure which was signed could not be verified because the STACK
3028 order did not reflect the encoded order.
3031 *) Reimplement the OCSP ASN1 module using the new code.
3034 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3035 for its ASN1 operations. The old style function pointers still exist
3036 for now but they will eventually go away.
3039 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3040 completely replaces the old ASN1 functionality with a table driven
3041 encoder and decoder which interprets an ASN1_ITEM structure describing
3042 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3043 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3044 has also been converted to the new form.
3047 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3048 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3049 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3050 for negative moduli.
3053 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3054 of not touching the result's sign bit.
3057 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3061 *) Changed the LHASH code to use prototypes for callbacks, and created
3062 macros to declare and implement thin (optionally static) functions
3063 that provide type-safety and avoid function pointer casting for the
3064 type-specific callbacks.
3067 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3069 [Veers Staats <staatsvr@asc.hpc.mil>,
3070 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3072 *) Reformat the FAQ so the different questions and answers can be divided
3073 in sections depending on the subject.
3076 *) Have the zlib compression code load ZLIB.DLL dynamically under
3080 *) New function BN_mod_sqrt for computing square roots modulo a prime
3081 (using the probabilistic Tonelli-Shanks algorithm unless
3082 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3083 be handled deterministically).
3084 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3086 *) Make BN_mod_inverse faster by explicitly handling small quotients
3087 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3088 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3091 *) New function BN_kronecker.
3094 *) Fix BN_gcd so that it works on negative inputs; the result is
3095 positive unless both parameters are zero.
3096 Previously something reasonably close to an infinite loop was
3097 possible because numbers could be growing instead of shrinking
3098 in the implementation of Euclid's algorithm.
3101 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3102 sign of the number in question.
3104 Fix BN_is_word(a,w) to work correctly for w == 0.
3106 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3107 because its test if the absolute value of 'a' equals 'w'.
3108 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3109 it exists mostly for use in the implementations of BN_is_zero(),
3110 BN_is_one(), and BN_is_word().
3113 *) New function BN_swap.
3116 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3117 the exponentiation functions are more likely to produce reasonable
3118 results on negative inputs.
3121 *) Change BN_mod_mul so that the result is always non-negative.
3122 Previously, it could be negative if one of the factors was negative;
3123 I don't think anyone really wanted that behaviour.
3126 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3127 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3128 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3129 and add new functions:
3138 BN_mod_lshift1_quick
3142 These functions always generate non-negative results.
3144 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3145 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3147 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3148 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3149 be reduced modulo m.
3150 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3153 The following entry accidentily appeared in the CHANGES file
3154 distributed with OpenSSL 0.9.7. The modifications described in
3155 it do *not* apply to OpenSSL 0.9.7.
3157 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3158 was actually never needed) and in BN_mul(). The removal in BN_mul()
3159 required a small change in bn_mul_part_recursive() and the addition
3160 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3161 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3162 bn_sub_words() and bn_add_words() except they take arrays with
3167 *) In 'openssl passwd', verify passwords read from the terminal
3168 unless the '-salt' option is used (which usually means that
3169 verification would just waste user's time since the resulting
3170 hash is going to be compared with some given password hash)
3171 or the new '-noverify' option is used.
3173 This is an incompatible change, but it does not affect
3174 non-interactive use of 'openssl passwd' (passwords on the command
3175 line, '-stdin' option, '-in ...' option) and thus should not
3179 *) Remove all references to RSAref, since there's no more need for it.
3182 *) Make DSO load along a path given through an environment variable
3183 (SHLIB_PATH) with shl_load().
3186 *) Constify the ENGINE code as a result of BIGNUM constification.
3187 Also constify the RSA code and most things related to it. In a
3188 few places, most notable in the depth of the ASN.1 code, ugly
3189 casts back to non-const were required (to be solved at a later
3193 *) Make it so the openssl application has all engines loaded by default.
3196 *) Constify the BIGNUM routines a little more.
3199 *) Add the following functions:
3201 ENGINE_load_cswift()
3203 ENGINE_load_atalla()
3205 ENGINE_load_builtin_engines()
3207 That way, an application can itself choose if external engines that
3208 are built-in in OpenSSL shall ever be used or not. The benefit is
3209 that applications won't have to be linked with libdl or other dso
3210 libraries unless it's really needed.
3212 Changed 'openssl engine' to load all engines on demand.
3213 Changed the engine header files to avoid the duplication of some
3214 declarations (they differed!).
3217 *) 'openssl engine' can now list capabilities.
3220 *) Better error reporting in 'openssl engine'.
3223 *) Never call load_dh_param(NULL) in s_server.
3226 *) Add engine application. It can currently list engines by name and
3227 identity, and test if they are actually available.
3230 *) Improve RPM specification file by forcing symbolic linking and making
3231 sure the installed documentation is also owned by root.root.
3232 [Damien Miller <djm@mindrot.org>]
3234 *) Give the OpenSSL applications more possibilities to make use of
3235 keys (public as well as private) handled by engines.
3238 *) Add OCSP code that comes from CertCo.
3241 *) Add VMS support for the Rijndael code.
3244 *) Added untested support for Nuron crypto accelerator.
3247 *) Add support for external cryptographic devices. This code was
3248 previously distributed separately as the "engine" branch.
3249 [Geoff Thorpe, Richard Levitte]
3251 *) Rework the filename-translation in the DSO code. It is now possible to
3252 have far greater control over how a "name" is turned into a filename
3253 depending on the operating environment and any oddities about the
3254 different shared library filenames on each system.
3257 *) Support threads on FreeBSD-elf in Configure.
3260 *) Fix for SHA1 assembly problem with MASM: it produces
3261 warnings about corrupt line number information when assembling
3262 with debugging information. This is caused by the overlapping
3264 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3267 NCONF_get_number() has no error checking at all. As a replacement,
3268 NCONF_get_number_e() is defined (_e for "error checking") and is
3269 promoted strongly. The old NCONF_get_number is kept around for
3270 binary backward compatibility.
3271 Make it possible for methods to load from something other than a BIO,
3272 by providing a function pointer that is given a name instead of a BIO.
3273 For example, this could be used to load configuration data from an
3277 *) Fix for non blocking accept BIOs. Added new I/O special reason
3278 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3279 with non blocking I/O was not possible because no retry code was
3280 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3284 *) Added the beginnings of Rijndael support.
3287 *) Fix for bug in DirectoryString mask setting. Add support for
3288 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3289 to allow certificate printing to more controllable, additional
3290 'certopt' option to 'x509' to allow new printing options to be
3294 *) Clean old EAY MD5 hack from e_os.h.
3297 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3299 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3300 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3301 [Joe Orton, Steve Henson]
3303 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3305 *) Fix additional bug revealed by the NISCC test suite:
3307 Stop bug triggering large recursion when presented with
3308 certain ASN.1 tags (CVE-2003-0851)
3311 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3313 *) Fix various bugs revealed by running the NISCC test suite:
3315 Stop out of bounds reads in the ASN1 code when presented with
3316 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3318 If verify callback ignores invalid public key errors don't try to check
3319 certificate signature with the NULL public key.
3323 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3324 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3328 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3329 extra data after the compression methods not only for TLS 1.0
3330 but also for SSL 3.0 (as required by the specification).
3331 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3333 *) Change X509_certificate_type() to mark the key as exported/exportable
3334 when it's 512 *bits* long, not 512 bytes.
3337 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3339 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3340 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3341 a protocol version number mismatch like a decryption error
3342 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3345 *) Turn on RSA blinding by default in the default implementation
3346 to avoid a timing attack. Applications that don't want it can call
3347 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3348 They would be ill-advised to do so in most cases.
3349 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3351 *) Change RSA blinding code so that it works when the PRNG is not
3352 seeded (in this case, the secret RSA exponent is abused as
3353 an unpredictable seed -- if it is not unpredictable, there
3354 is no point in blinding anyway). Make RSA blinding thread-safe
3355 by remembering the creator's thread ID in rsa->blinding and
3356 having all other threads use local one-time blinding factors
3357 (this requires more computation than sharing rsa->blinding, but
3358 avoids excessive locking; and if an RSA object is not shared
3359 between threads, blinding will still be very fast).
3362 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3364 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3365 via timing by performing a MAC computation even if incorrrect
3366 block cipher padding has been found. This is a countermeasure
3367 against active attacks where the attacker has to distinguish
3368 between bad padding and a MAC verification error. (CVE-2003-0078)
3370 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3371 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3372 Martin Vuagnoux (EPFL, Ilion)]
3374 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3376 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3377 memory from it's contents. This is done with a counter that will
3378 place alternating values in each byte. This can be used to solve
3379 two issues: 1) the removal of calls to memset() by highly optimizing
3380 compilers, and 2) cleansing with other values than 0, since those can
3381 be read through on certain media, for example a swap space on disk.
3384 *) Bugfix: client side session caching did not work with external caching,
3385 because the session->cipher setting was not restored when reloading
3386 from the external cache. This problem was masked, when
3387 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3388 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3391 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3392 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3393 [Zeev Lieber <zeev-l@yahoo.com>]
3395 *) Undo an undocumented change introduced in 0.9.6e which caused
3396 repeated calls to OpenSSL_add_all_ciphers() and
3397 OpenSSL_add_all_digests() to be ignored, even after calling
3401 *) Change the default configuration reader to deal with last line not
3402 being properly terminated.
3405 *) Change X509_NAME_cmp() so it applies the special rules on handling
3406 DN values that are of type PrintableString, as well as RDNs of type
3407 emailAddress where the value has the type ia5String.
3408 [stefank@valicert.com via Richard Levitte]
3410 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3411 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3412 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3413 the bitwise-OR of the two for use by the majority of applications
3414 wanting this behaviour, and update the docs. The documented
3415 behaviour and actual behaviour were inconsistent and had been
3416 changing anyway, so this is more a bug-fix than a behavioural
3418 [Geoff Thorpe, diagnosed by Nadav Har'El]
3420 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3421 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3424 *) Fix initialization code race conditions in
3425 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3426 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3427 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3428 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3429 ssl2_get_cipher_by_char(),
3430 ssl3_get_cipher_by_char().
3431 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3433 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3434 the cached sessions are flushed, as the remove_cb() might use ex_data
3435 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3436 (see [openssl.org #212]).
3437 [Geoff Thorpe, Lutz Jaenicke]
3439 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3440 length, instead of the encoding length to d2i_ASN1_OBJECT.
3443 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3445 *) [In 0.9.6g-engine release:]
3446 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3447 [Lynn Gazis <lgazis@rainbow.com>]
3449 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3451 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3452 and get fix the header length calculation.
3453 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3454 Alon Kantor <alonk@checkpoint.com> (and others),
3457 *) Use proper error handling instead of 'assertions' in buffer
3458 overflow checks added in 0.9.6e. This prevents DoS (the
3459 assertions could call abort()).
3460 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3462 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3464 *) Add various sanity checks to asn1_get_length() to reject
3465 the ASN1 length bytes if they exceed sizeof(long), will appear
3466 negative or the content length exceeds the length of the
3468 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3470 *) Fix cipher selection routines: ciphers without encryption had no flags
3471 for the cipher strength set and where therefore not handled correctly
3472 by the selection routines (PR #130).
3475 *) Fix EVP_dsa_sha macro.
3479 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3480 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3481 that was added in OpenSSL 0.9.6d.
3483 As the countermeasure turned out to be incompatible with some
3484 broken SSL implementations, the new option is part of SSL_OP_ALL.
3485 SSL_OP_ALL is usually employed when compatibility with weird SSL
3486 implementations is desired (e.g. '-bugs' option to 's_client' and
3487 's_server'), so the new option is automatically set in many
3491 *) Changes in security patch:
3493 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3494 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3495 Air Force Materiel Command, USAF, under agreement number
3498 *) Add various sanity checks to asn1_get_length() to reject
3499 the ASN1 length bytes if they exceed sizeof(long), will appear
3500 negative or the content length exceeds the length of the
3501 supplied buffer. (CVE-2002-0659)
3502 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3504 *) Assertions for various potential buffer overflows, not known to
3506 [Ben Laurie (CHATS)]
3508 *) Various temporary buffers to hold ASCII versions of integers were
3509 too small for 64 bit platforms. (CVE-2002-0655)
3510 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3512 *) Remote buffer overflow in SSL3 protocol - an attacker could
3513 supply an oversized session ID to a client. (CVE-2002-0656)
3514 [Ben Laurie (CHATS)]
3516 *) Remote buffer overflow in SSL2 protocol - an attacker could
3517 supply an oversized client master key. (CVE-2002-0656)
3518 [Ben Laurie (CHATS)]
3520 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3522 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3523 encoded as NULL) with id-dsa-with-sha1.
3524 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3526 *) Check various X509_...() return values in apps/req.c.
3527 [Nils Larsch <nla@trustcenter.de>]
3529 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3530 an end-of-file condition would erronously be flagged, when the CRLF
3531 was just at the end of a processed block. The bug was discovered when
3532 processing data through a buffering memory BIO handing the data to a
3533 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3534 <ptsekov@syntrex.com> and Nedelcho Stanev.
3537 *) Implement a countermeasure against a vulnerability recently found
3538 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3539 before application data chunks to avoid the use of known IVs
3540 with data potentially chosen by the attacker.
3543 *) Fix length checks in ssl3_get_client_hello().
3546 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3547 to prevent ssl3_read_internal() from incorrectly assuming that
3548 ssl3_read_bytes() found application data while handshake
3549 processing was enabled when in fact s->s3->in_read_app_data was
3550 merely automatically cleared during the initial handshake.
3551 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3553 *) Fix object definitions for Private and Enterprise: they were not
3554 recognized in their shortname (=lowercase) representation. Extend
3555 obj_dat.pl to issue an error when using undefined keywords instead
3556 of silently ignoring the problem (Svenning Sorensen
3557 <sss@sss.dnsalias.net>).
3560 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3561 generators, i.e. generators other than 2 and 5. (Previously, the
3562 code did not properly initialise the 'add' and 'rem' values to
3563 BN_generate_prime().)
3565 In the new general case, we do not insist that 'generator' is
3566 actually a primitive root: This requirement is rather pointless;
3567 a generator of the order-q subgroup is just as good, if not
3571 *) Map new X509 verification errors to alerts. Discovered and submitted by
3572 Tom Wu <tom@arcot.com>.
3575 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3576 returning non-zero before the data has been completely received
3577 when using non-blocking I/O.
3578 [Bodo Moeller; problem pointed out by John Hughes]
3580 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3581 [Ben Laurie, Lutz Jaenicke]
3583 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3584 Yoram Zahavi <YoramZ@gilian.com>).
3587 *) Add information about CygWin 1.3 and on, and preserve proper
3588 configuration for the versions before that.
3589 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3591 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3592 check whether we deal with a copy of a session and do not delete from
3593 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3594 <izhar@checkpoint.com>.
3597 *) Do not store session data into the internal session cache, if it
3598 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3599 flag is set). Proposed by Aslam <aslam@funk.com>.
3602 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3606 *) [In 0.9.6d-engine release:]
3607 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3608 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3610 *) Add the configuration target linux-s390x.
3611 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3613 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3614 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3615 variable as an indication that a ClientHello message has been
3616 received. As the flag value will be lost between multiple
3617 invocations of ssl3_accept when using non-blocking I/O, the
3618 function may not be aware that a handshake has actually taken
3619 place, thus preventing a new session from being added to the
3622 To avoid this problem, we now set s->new_session to 2 instead of
3623 using a local variable.
3624 [Lutz Jaenicke, Bodo Moeller]
3626 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3627 if the SSL_R_LENGTH_MISMATCH error is detected.
3628 [Geoff Thorpe, Bodo Moeller]
3630 *) New 'shared_ldflag' column in Configure platform table.
3633 *) Fix EVP_CIPHER_mode macro.
3634 ["Dan S. Camper" <dan@bti.net>]
3636 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3637 type, we must throw them away by setting rr->length to 0.
3638 [D P Chang <dpc@qualys.com>]
3640 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3642 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3643 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3644 worked incorrectly for those cases where range = 10..._2 and
3645 3*range is two bits longer than range.)
3648 *) Only add signing time to PKCS7 structures if it is not already
3652 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3653 OBJ_ld_ce should be OBJ_id_ce.
3654 Also some ip-pda OIDs in crypto/objects/objects.txt were
3655 incorrect (cf. RFC 3039).
3656 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3658 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3659 returns early because it has nothing to do.
3660 [Andy Schneider <andy.schneider@bjss.co.uk>]
3662 *) [In 0.9.6c-engine release:]
3663 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3664 [Andy Schneider <andy.schneider@bjss.co.uk>]
3666 *) [In 0.9.6c-engine release:]
3667 Add support for Cryptographic Appliance's keyserver technology.
3668 (Use engine 'keyclient')
3669 [Cryptographic Appliances and Geoff Thorpe]
3671 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3672 is called via tools/c89.sh because arguments have to be
3673 rearranged (all '-L' options must appear before the first object
3675 [Richard Shapiro <rshapiro@abinitio.com>]
3677 *) [In 0.9.6c-engine release:]
3678 Add support for Broadcom crypto accelerator cards, backported
3680 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3682 *) [In 0.9.6c-engine release:]
3683 Add support for SureWare crypto accelerator cards from
3684 Baltimore Technologies. (Use engine 'sureware')
3685 [Baltimore Technologies and Mark Cox]
3687 *) [In 0.9.6c-engine release:]
3688 Add support for crypto accelerator cards from Accelerated
3689 Encryption Processing, www.aep.ie. (Use engine 'aep')
3690 [AEP Inc. and Mark Cox]
3692 *) Add a configuration entry for gcc on UnixWare.
3693 [Gary Benson <gbenson@redhat.com>]
3695 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3696 messages are stored in a single piece (fixed-length part and
3697 variable-length part combined) and fix various bugs found on the way.
3700 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3701 instead. BIO_gethostbyname() does not know what timeouts are
3702 appropriate, so entries would stay in cache even when they have
3704 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3706 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3707 faced with a pathologically small ClientHello fragment that does
3708 not contain client_version: Instead of aborting with an error,
3709 simply choose the highest available protocol version (i.e.,
3710 TLS 1.0 unless it is disabled). In practice, ClientHello
3711 messages are never sent like this, but this change gives us
3712 strictly correct behaviour at least for TLS.
3715 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3716 never resets s->method to s->ctx->method when called from within
3717 one of the SSL handshake functions.
3718 [Bodo Moeller; problem pointed out by Niko Baric]
3720 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3721 (sent using the client's version number) if client_version is
3722 smaller than the protocol version in use. Also change
3723 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3724 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3725 the client will at least see that alert.
3728 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3732 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3733 client receives HelloRequest while in a handshake.
3734 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3736 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3737 should end in 'break', not 'goto end' which circuments various
3738 cleanups done in state SSL_ST_OK. But session related stuff
3739 must be disabled for SSL_ST_OK in the case that we just sent a
3742 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3743 before just sending a HelloRequest.
3744 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3746 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3747 reveal whether illegal block cipher padding was found or a MAC
3748 verification error occured. (Neither SSLerr() codes nor alerts
3749 are directly visible to potential attackers, but the information
3750 may leak via logfiles.)
3752 Similar changes are not required for the SSL 2.0 implementation
3753 because the number of padding bytes is sent in clear for SSL 2.0,
3754 and the extra bytes are just ignored. However ssl/s2_pkt.c
3755 failed to verify that the purported number of padding bytes is in
3759 *) Add OpenUNIX-8 support including shared libraries
3760 (Boyd Lynn Gerber <gerberb@zenez.com>).
3763 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3764 'wristwatch attack' using huge encoding parameters (cf.
3765 James H. Manger's CRYPTO 2001 paper). Note that the
3766 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3767 encoding parameters and hence was not vulnerable.
3770 *) BN_sqr() bug fix.
3771 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3773 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3774 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3775 followed by modular reduction.
3776 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3778 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3779 equivalent based on BN_pseudo_rand() instead of BN_rand().
3782 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3783 This function was broken, as the check for a new client hello message
3784 to handle SGC did not allow these large messages.
3785 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3788 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3791 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3792 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3795 *) Rework the configuration and shared library support for Tru64 Unix.
3796 The configuration part makes use of modern compiler features and
3797 still retains old compiler behavior for those that run older versions
3798 of the OS. The shared library support part includes a variant that
3799 uses the RPATH feature, and is available through the special
3800 configuration target "alpha-cc-rpath", which will never be selected
3802 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3804 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3805 with the same message size as in ssl3_get_certificate_request().
3806 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3807 messages might inadvertently be reject as too long.
3808 [Petr Lampa <lampa@fee.vutbr.cz>]
3810 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3813 *) Modified SSL library such that the verify_callback that has been set
3814 specificly for an SSL object with SSL_set_verify() is actually being
3815 used. Before the change, a verify_callback set with this function was
3816 ignored and the verify_callback() set in the SSL_CTX at the time of
3817 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3818 to allow the necessary settings.
3821 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3822 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3823 done automatically (in contradiction to the requirements of the C
3824 standard). This made problems when used from OpenSSH.
3827 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3828 dh->length and always used
3830 BN_rand_range(priv_key, dh->p).
3832 BN_rand_range() is not necessary for Diffie-Hellman, and this
3833 specific range makes Diffie-Hellman unnecessarily inefficient if
3834 dh->length (recommended exponent length) is much smaller than the
3835 length of dh->p. We could use BN_rand_range() if the order of
3836 the subgroup was stored in the DH structure, but we only have
3841 BN_rand(priv_key, l, ...)
3843 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3849 RSA_eay_public_encrypt
3850 RSA_eay_private_decrypt
3851 RSA_eay_private_encrypt (signing)
3852 RSA_eay_public_decrypt (signature verification)
3854 (default implementations for RSA_public_encrypt,
3855 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3856 always reject numbers >= n.
3859 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3860 to synchronize access to 'locking_thread'. This is necessary on
3861 systems where access to 'locking_thread' (an 'unsigned long'
3862 variable) is not atomic.
3865 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3866 *before* setting the 'crypto_lock_rand' flag. The previous code had
3867 a race condition if 0 is a valid thread ID.
3868 [Travis Vitek <vitek@roguewave.com>]
3870 *) Add support for shared libraries under Irix.
3871 [Albert Chin-A-Young <china@thewrittenword.com>]
3873 *) Add configuration option to build on Linux on both big-endian and
3875 [Ralf Baechle <ralf@uni-koblenz.de>]
3877 *) Add the possibility to create shared libraries on HP-UX.
3880 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3882 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3883 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3884 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3885 PRNG state recovery was possible based on the output of
3886 one PRNG request appropriately sized to gain knowledge on
3887 'md' followed by enough consecutive 1-byte PRNG requests
3888 to traverse all of 'state'.
3890 1. When updating 'md_local' (the current thread's copy of 'md')
3891 during PRNG output generation, hash all of the previous
3892 'md_local' value, not just the half used for PRNG output.
3894 2. Make the number of bytes from 'state' included into the hash
3895 independent from the number of PRNG bytes requested.
3897 The first measure alone would be sufficient to avoid
3898 Markku-Juhani's attack. (Actually it had never occurred
3899 to me that the half of 'md_local' used for chaining was the
3900 half from which PRNG output bytes were taken -- I had always
3901 assumed that the secret half would be used.) The second
3902 measure makes sure that additional data from 'state' is never
3903 mixed into 'md_local' in small portions; this heuristically
3904 further strengthens the PRNG.
3907 *) Fix crypto/bn/asm/mips3.s.
3910 *) When only the key is given to "enc", the IV is undefined. Print out
3911 an error message in this case.
3914 *) Handle special case when X509_NAME is empty in X509 printing routines.
3917 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3918 positive and less than q.
3921 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3922 used: it isn't thread safe and the add_lock_callback should handle
3924 [Paul Rose <Paul.Rose@bridge.com>]
3926 *) Verify that incoming data obeys the block size in
3927 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3931 [Ulf Möller, Bodo Möller]
3933 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3934 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3935 when fixing the server behaviour for backwards-compatible 'client
3936 hello' messages. (Note that the attack is impractical against
3937 SSL 3.0 and TLS 1.0 anyway because length and version checking
3938 means that the probability of guessing a valid ciphertext is
3939 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3942 Before 0.9.5, the countermeasure (hide the error by generating a
3943 random 'decryption result') did not work properly because
3944 ERR_clear_error() was missing, meaning that SSL_get_error() would
3945 detect the supposedly ignored error.
3947 Both problems are now fixed.
3950 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3951 (previously it was 1024).
3954 *) Fix for compatibility mode trust settings: ignore trust settings
3955 unless some valid trust or reject settings are present.
3958 *) Fix for blowfish EVP: its a variable length cipher.
3961 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3962 parameters in DSA public key structures and return an error in the
3963 DSA routines if parameters are absent.
3966 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3967 in the current directory if neither $RANDFILE nor $HOME was set.
3968 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3969 caused some confusion to Windows users who haven't defined $HOME.
3970 Thus RAND_file_name() is changed again: e_os.h can define a
3971 DEFAULT_HOME, which will be used if $HOME is not set.
3972 For Windows, we use "C:"; on other platforms, we still require
3973 environment variables.
3975 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3976 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3977 having multiple threads call RAND_poll() concurrently.
3980 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3981 combination of a flag and a thread ID variable.
3982 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3983 flag), *other* threads can enter ssleay_add_bytes without obeying
3984 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3985 that they do not hold after the first thread unsets add_do_not_lock).
3988 *) Change bctest again: '-x' expressions are not available in all
3992 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3994 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3995 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3997 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3998 the default extension for executables, if any. Also, make the perl
3999 scripts that use symlink() to test if it really exists and use "cp"
4000 if it doesn't. All this made OpenSSL compilable and installable in
4004 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4005 If SEQUENCE is length is indefinite just set c->slen to the total
4006 amount of data available.
4007 [Steve Henson, reported by shige@FreeBSD.org]
4008 [This change does not apply to 0.9.7.]
4010 *) Change bctest to avoid here-documents inside command substitution
4011 (workaround for FreeBSD /bin/sh bug).
4012 For compatibility with Ultrix, avoid shell functions (introduced
4013 in the bctest version that searches along $PATH).
4016 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4017 with des_encrypt() defined on some operating systems, like Solaris
4021 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4022 On the Importance of Eliminating Errors in Cryptographic
4023 Computations, J. Cryptology 14 (2001) 2, 101-119,
4024 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4027 *) MIPS assembler BIGNUM division bug fix.
4030 *) Disabled incorrect Alpha assembler code.
4033 *) Fix PKCS#7 decode routines so they correctly update the length
4034 after reading an EOC for the EXPLICIT tag.
4036 [This change does not apply to 0.9.7.]
4038 *) Fix bug in PKCS#12 key generation routines. This was triggered
4039 if a 3DES key was generated with a 0 initial byte. Include
4040 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4041 (but broken) behaviour.
4044 *) Enhance bctest to search for a working bc along $PATH and print
4046 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4048 *) Fix memory leaks in err.c: free err_data string if necessary;
4049 don't write to the wrong index in ERR_set_error_data.
4052 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4056 *) Replace rdtsc with _emit statements for VC++ version 5.
4057 [Jeremy Cooper <jeremy@baymoo.org>]
4059 *) Make it possible to reuse SSLv2 sessions.
4062 *) In copy_email() check for >= 0 as a return value for
4063 X509_NAME_get_index_by_NID() since 0 is a valid index.
4064 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4066 *) Avoid coredump with unsupported or invalid public keys by checking if
4067 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4068 PKCS7_verify() fails with non detached data.
4071 *) Don't use getenv in library functions when run as setuid/setgid.
4072 New function OPENSSL_issetugid().
4075 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4076 due to incorrect handling of multi-threading:
4078 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4080 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4082 3. Count how many times MemCheck_off() has been called so that
4083 nested use can be treated correctly. This also avoids
4084 inband-signalling in the previous code (which relied on the
4085 assumption that thread ID 0 is impossible).
4088 *) Add "-rand" option also to s_client and s_server.
4091 *) Fix CPU detection on Irix 6.x.
4092 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4093 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4095 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4098 [This change does not apply to 0.9.7.]
4100 *) Use the cached encoding of an X509_NAME structure rather than
4101 copying it. This is apparently the reason for the libsafe "errors"
4102 but the code is actually correct.
4105 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4106 Bleichenbacher's DSA attack.
4107 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4108 to be set and top=0 forces the highest bit to be set; top=-1 is new
4109 and leaves the highest bit random.
4110 [Ulf Moeller, Bodo Moeller]
4112 *) In the NCONF_...-based implementations for CONF_... queries
4113 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4114 a temporary CONF structure with the data component set to NULL
4115 (which gives segmentation faults in lh_retrieve).
4116 Instead, use NULL for the CONF pointer in CONF_get_string and
4117 CONF_get_number (which may use environment variables) and directly
4118 return NULL from CONF_get_section.
4121 *) Fix potential buffer overrun for EBCDIC.
4124 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4125 keyUsage if basicConstraints absent for a CA.
4128 *) Make SMIME_write_PKCS7() write mail header values with a format that
4129 is more generally accepted (no spaces before the semicolon), since
4130 some programs can't parse those values properly otherwise. Also make
4131 sure BIO's that break lines after each write do not create invalid
4135 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4136 macros previously used would not encode an empty SEQUENCE OF
4137 and break the signature.
4139 [This change does not apply to 0.9.7.]
4141 *) Zero the premaster secret after deriving the master secret in
4145 *) Add some EVP_add_digest_alias registrations (as found in
4146 OpenSSL_add_all_digests()) to SSL_library_init()
4147 aka OpenSSL_add_ssl_algorithms(). This provides improved
4148 compatibility with peers using X.509 certificates
4149 with unconventional AlgorithmIdentifier OIDs.
4152 *) Fix for Irix with NO_ASM.
4153 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4155 *) ./config script fixes.
4156 [Ulf Moeller, Richard Levitte]
4158 *) Fix 'openssl passwd -1'.
4161 *) Change PKCS12_key_gen_asc() so it can cope with non null
4162 terminated strings whose length is passed in the passlen
4163 parameter, for example from PEM callbacks. This was done
4164 by adding an extra length parameter to asc2uni().
4165 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4167 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4168 call failed, free the DSA structure.
4171 *) Fix to uni2asc() to cope with zero length Unicode strings.
4172 These are present in some PKCS#12 files.
4175 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4176 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4177 when writing a 32767 byte record.
4178 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4180 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4181 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4183 (RSA objects have a reference count access to which is protected
4184 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4185 so they are meant to be shared between threads.)
4186 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4187 "Reddie, Steven" <Steven.Reddie@ca.com>]
4189 *) Fix a deadlock in CRYPTO_mem_leaks().
4192 *) Use better test patterns in bntest.
4195 *) rand_win.c fix for Borland C.
4198 *) BN_rshift bugfix for n == 0.
4201 *) Add a 'bctest' script that checks for some known 'bc' bugs
4202 so that 'make test' does not abort just because 'bc' is broken.
4205 *) Store verify_result within SSL_SESSION also for client side to
4206 avoid potential security hole. (Re-used sessions on the client side
4207 always resulted in verify_result==X509_V_OK, not using the original
4208 result of the server certificate verification.)
4211 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4212 SSL3_RT_APPLICATION_DATA, return 0.
4213 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4217 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4218 releases, have been re-implemented by renaming the previous
4219 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4220 and ssl3_read_internal, respectively, and adding 'peek' parameters
4221 to them. The new ssl[23]_{read,peek} functions are calls to
4222 ssl[23]_read_internal with the 'peek' flag set appropriately.
4223 A 'peek' parameter has also been added to ssl3_read_bytes, which
4224 does the actual work for ssl3_read_internal.
4227 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4228 the method-specific "init()" handler. Also clean up ex_data after
4229 calling the method-specific "finish()" handler. Previously, this was
4230 happening the other way round.
4233 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4234 The previous value, 12, was not always sufficient for BN_mod_exp().
4237 *) Make sure that shared libraries get the internal name engine with
4238 the full version number and not just 0. This should mark the
4239 shared libraries as not backward compatible. Of course, this should
4240 be changed again when we can guarantee backward binary compatibility.
4243 *) Fix typo in get_cert_by_subject() in by_dir.c
4244 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4246 *) Rework the system to generate shared libraries:
4248 - Make note of the expected extension for the shared libraries and
4249 if there is a need for symbolic links from for example libcrypto.so.0
4250 to libcrypto.so.0.9.7. There is extended info in Configure for
4253 - Make as few rebuilds of the shared libraries as possible.
4255 - Still avoid linking the OpenSSL programs with the shared libraries.
4257 - When installing, install the shared libraries separately from the
4261 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4263 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4264 and not in SSL_clear because the latter is also used by the
4265 accept/connect functions; previously, the settings made by
4266 SSL_set_read_ahead would be lost during the handshake.
4267 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4269 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4270 Previously, it would create entries for disableed algorithms no
4274 *) Added several new manual pages for SSL_* function.
4277 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4279 *) In ssl23_get_client_hello, generate an error message when faced
4280 with an initial SSL 3.0/TLS record that is too small to contain the
4281 first two bytes of the ClientHello message, i.e. client_version.
4282 (Note that this is a pathologic case that probably has never happened
4283 in real life.) The previous approach was to use the version number
4284 from the record header as a substitute; but our protocol choice
4285 should not depend on that one because it is not authenticated
4286 by the Finished messages.
4289 *) More robust randomness gathering functions for Windows.
4290 [Jeffrey Altman <jaltman@columbia.edu>]
4292 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4293 not set then we don't setup the error code for issuer check errors
4294 to avoid possibly overwriting other errors which the callback does
4295 handle. If an application does set the flag then we assume it knows
4296 what it is doing and can handle the new informational codes
4300 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4301 a general "ANY" type, as such it should be able to decode anything
4302 including tagged types. However it didn't check the class so it would
4303 wrongly interpret tagged types in the same way as their universal
4304 counterpart and unknown types were just rejected. Changed so that the
4305 tagged and unknown types are handled in the same way as a SEQUENCE:
4306 that is the encoding is stored intact. There is also a new type
4307 "V_ASN1_OTHER" which is used when the class is not universal, in this
4308 case we have no idea what the actual type is so we just lump them all
4312 *) On VMS, stdout may very well lead to a file that is written to
4313 in a record-oriented fashion. That means that every write() will
4314 write a separate record, which will be read separately by the
4315 programs trying to read from it. This can be very confusing.
4317 The solution is to put a BIO filter in the way that will buffer
4318 text until a linefeed is reached, and then write everything a
4319 line at a time, so every record written will be an actual line,
4320 not chunks of lines and not (usually doesn't happen, but I've
4321 seen it once) several lines in one record. BIO_f_linebuffer() is
4324 Currently, it's a VMS-only method, because that's where it has
4325 been tested well enough.
4328 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4329 it can return incorrect results.
4330 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4331 but it was in 0.9.6-beta[12].)
4334 *) Disable the check for content being present when verifying detached
4335 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4336 include zero length content when signing messages.
4339 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4340 BIO_ctrl (for BIO pairs).
4343 *) Add DSO method for VMS.
4346 *) Bug fix: Montgomery multiplication could produce results with the
4350 *) Add RPM specification openssl.spec and modify it to build three
4351 packages. The default package contains applications, application
4352 documentation and run-time libraries. The devel package contains
4353 include files, static libraries and function documentation. The
4354 doc package contains the contents of the doc directory. The original
4355 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4358 *) Add a large number of documentation files for many SSL routines.
4359 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4361 *) Add a configuration entry for Sony News 4.
4362 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4364 *) Don't set the two most significant bits to one when generating a
4365 random number < q in the DSA library.
4368 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4369 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4370 the underlying transport is blocking) if a handshake took place.
4371 (The default behaviour is needed by applications such as s_client
4372 and s_server that use select() to determine when to use SSL_read;
4373 but for applications that know in advance when to expect data, it
4374 just makes things more complicated.)
4377 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4381 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4382 work better on such systems.
4383 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4385 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4386 Update PKCS12_parse() so it copies the friendlyName and the
4387 keyid to the certificates aux info.
4390 *) Fix bug in PKCS7_verify() which caused an infinite loop
4391 if there was more than one signature.
4392 [Sven Uszpelkat <su@celocom.de>]
4394 *) Major change in util/mkdef.pl to include extra information
4395 about each symbol, as well as presentig variables as well
4396 as functions. This change means that there's n more need
4397 to rebuild the .num files when some algorithms are excluded.
4400 *) Allow the verify time to be set by an application,
4401 rather than always using the current time.
4404 *) Phase 2 verify code reorganisation. The certificate
4405 verify code now looks up an issuer certificate by a
4406 number of criteria: subject name, authority key id
4407 and key usage. It also verifies self signed certificates
4408 by the same criteria. The main comparison function is
4409 X509_check_issued() which performs these checks.
4411 Lot of changes were necessary in order to support this
4412 without completely rewriting the lookup code.
4414 Authority and subject key identifier are now cached.
4416 The LHASH 'certs' is X509_STORE has now been replaced
4417 by a STACK_OF(X509_OBJECT). This is mainly because an
4418 LHASH can't store or retrieve multiple objects with
4419 the same hash value.
4421 As a result various functions (which were all internal
4422 use only) have changed to handle the new X509_STORE
4423 structure. This will break anything that messed round
4424 with X509_STORE internally.
4426 The functions X509_STORE_add_cert() now checks for an
4427 exact match, rather than just subject name.
4429 The X509_STORE API doesn't directly support the retrieval
4430 of multiple certificates matching a given criteria, however
4431 this can be worked round by performing a lookup first
4432 (which will fill the cache with candidate certificates)
4433 and then examining the cache for matches. This is probably
4434 the best we can do without throwing out X509_LOOKUP
4435 entirely (maybe later...).
4437 The X509_VERIFY_CTX structure has been enhanced considerably.
4439 All certificate lookup operations now go via a get_issuer()
4440 callback. Although this currently uses an X509_STORE it
4441 can be replaced by custom lookups. This is a simple way
4442 to bypass the X509_STORE hackery necessary to make this
4443 work and makes it possible to use more efficient techniques
4444 in future. A very simple version which uses a simple
4445 STACK for its trusted certificate store is also provided
4446 using X509_STORE_CTX_trusted_stack().
4448 The verify_cb() and verify() callbacks now have equivalents
4449 in the X509_STORE_CTX structure.
4451 X509_STORE_CTX also has a 'flags' field which can be used
4452 to customise the verify behaviour.
4455 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4456 excludes S/MIME capabilities.
4459 *) When a certificate request is read in keep a copy of the
4460 original encoding of the signed data and use it when outputing
4461 again. Signatures then use the original encoding rather than
4462 a decoded, encoded version which may cause problems if the
4463 request is improperly encoded.
4466 *) For consistency with other BIO_puts implementations, call
4467 buffer_write(b, ...) directly in buffer_puts instead of calling
4470 In BIO_puts, increment b->num_write as in BIO_write.
4471 [Peter.Sylvester@EdelWeb.fr]
4473 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4474 BN_zero, we may not return a BIGNUM with an array consisting of
4478 *) Avoid calling abort() from within the library when problems are
4479 detected, except if preprocessor symbols have been defined
4480 (such as REF_CHECK, BN_DEBUG etc.).
4483 *) New openssl application 'rsautl'. This utility can be
4484 used for low level RSA operations. DER public key
4485 BIO/fp routines also added.
4488 *) New Configure entry and patches for compiling on QNX 4.
4489 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4491 *) A demo state-machine implementation was sponsored by
4492 Nuron (http://www.nuron.com/) and is now available in
4493 demos/state_machine.
4496 *) New options added to the 'dgst' utility for signature
4497 generation and verification.
4500 *) Unrecognized PKCS#7 content types are now handled via a
4501 catch all ASN1_TYPE structure. This allows unsupported
4502 types to be stored as a "blob" and an application can
4503 encode and decode it manually.
4506 *) Fix various signed/unsigned issues to make a_strex.c
4508 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4510 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4511 length if passed a buffer. ASN1_INTEGER_to_BN failed
4512 if passed a NULL BN and its argument was negative.
4513 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4515 *) Modification to PKCS#7 encoding routines to output definite
4516 length encoding. Since currently the whole structures are in
4517 memory there's not real point in using indefinite length
4518 constructed encoding. However if OpenSSL is compiled with
4519 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4522 *) Added BIO_vprintf() and BIO_vsnprintf().
4525 *) Added more prefixes to parse for in the the strings written
4526 through a logging bio, to cover all the levels that are available
4527 through syslog. The prefixes are now:
4529 PANIC, EMERG, EMR => LOG_EMERG
4530 ALERT, ALR => LOG_ALERT
4531 CRIT, CRI => LOG_CRIT
4532 ERROR, ERR => LOG_ERR
4533 WARNING, WARN, WAR => LOG_WARNING
4534 NOTICE, NOTE, NOT => LOG_NOTICE
4535 INFO, INF => LOG_INFO
4536 DEBUG, DBG => LOG_DEBUG
4538 and as before, if none of those prefixes are present at the
4539 beginning of the string, LOG_ERR is chosen.
4541 On Win32, the LOG_* levels are mapped according to this:
4543 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4544 LOG_WARNING => EVENTLOG_WARNING_TYPE
4545 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4549 *) Made it possible to reconfigure with just the configuration
4550 argument "reconf" or "reconfigure". The command line arguments
4551 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4552 and are retrieved from there when reconfiguring.
4556 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4558 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4561 *) The obj_dat.pl script was messing up the sorting of object
4562 names. The reason was that it compared the quoted version
4563 of strings as a result "OCSP" > "OCSP Signing" because
4564 " > SPACE. Changed script to store unquoted versions of
4565 names and add quotes on output. It was also omitting some
4566 names from the lookup table if they were given a default
4567 value (that is if SN is missing it is given the same
4568 value as LN and vice versa), these are now added on the
4569 grounds that if an object has a name we should be able to
4570 look it up. Finally added warning output when duplicate
4571 short or long names are found.
4574 *) Changes needed for Tandem NSK.
4575 [Scott Uroff <scott@xypro.com>]
4577 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4578 RSA_padding_check_SSLv23(), special padding was never detected
4579 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4580 version rollback attacks was not effective.
4582 In s23_clnt.c, don't use special rollback-attack detection padding
4583 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4584 client; similarly, in s23_srvr.c, don't do the rollback check if
4585 SSL 2.0 is the only protocol enabled in the server.
4588 *) Make it possible to get hexdumps of unprintable data with 'openssl
4589 asn1parse'. By implication, the functions ASN1_parse_dump() and
4590 BIO_dump_indent() are added.
4593 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4594 these print out strings and name structures based on various
4595 flags including RFC2253 support and proper handling of
4596 multibyte characters. Added options to the 'x509' utility
4597 to allow the various flags to be set.
4600 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4601 Also change the functions X509_cmp_current_time() and
4602 X509_gmtime_adj() work with an ASN1_TIME structure,
4603 this will enable certificates using GeneralizedTime in validity
4604 dates to be checked.
4607 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4608 negative public key encodings) on by default,
4609 NO_NEG_PUBKEY_BUG can be set to disable it.
4612 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4613 content octets. An i2c_ASN1_OBJECT is unnecessary because
4614 the encoding can be trivially obtained from the structure.
4617 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4618 not read locks (CRYPTO_r_[un]lock).
4621 *) A first attempt at creating official support for shared
4622 libraries through configuration. I've kept it so the
4623 default is static libraries only, and the OpenSSL programs
4624 are always statically linked for now, but there are
4625 preparations for dynamic linking in place.
4626 This has been tested on Linux and Tru64.
4629 *) Randomness polling function for Win9x, as described in:
4630 Peter Gutmann, Software Generation of Practically Strong
4634 *) Fix so PRNG is seeded in req if using an already existing
4638 *) New options to smime application. -inform and -outform
4639 allow alternative formats for the S/MIME message including
4640 PEM and DER. The -content option allows the content to be
4641 specified separately. This should allow things like Netscape
4642 form signing output easier to verify.
4645 *) Fix the ASN1 encoding of tags using the 'long form'.
4648 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4649 STRING types. These convert content octets to and from the
4650 underlying type. The actual tag and length octets are
4651 already assumed to have been read in and checked. These
4652 are needed because all other string types have virtually
4653 identical handling apart from the tag. By having versions
4654 of the ASN1 functions that just operate on content octets
4655 IMPLICIT tagging can be handled properly. It also allows
4656 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4657 and ASN1_INTEGER are identical apart from the tag.
4660 *) Change the handling of OID objects as follows:
4662 - New object identifiers are inserted in objects.txt, following
4663 the syntax given in objects.README.
4664 - objects.pl is used to process obj_mac.num and create a new
4666 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4669 This is currently kind of a hack, and the perl code in objects.pl
4670 isn't very elegant, but it works as I intended. The simplest way
4671 to check that it worked correctly is to look in obj_dat.h and
4672 check the array nid_objs and make sure the objects haven't moved
4673 around (this is important!). Additions are OK, as well as
4674 consistent name changes.
4677 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4680 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4681 The given file adds to whatever has already been seeded into the
4682 random pool through the RANDFILE configuration file option or
4683 environment variable, or the default random state file.
4686 *) mkstack.pl now sorts each macro group into lexical order.
4687 Previously the output order depended on the order the files
4688 appeared in the directory, resulting in needless rewriting
4692 *) Patches to make OpenSSL compile under Win32 again. Mostly
4693 work arounds for the VC++ problem that it treats func() as
4694 func(void). Also stripped out the parts of mkdef.pl that
4695 added extra typesafe functions: these no longer exist.
4698 *) Reorganisation of the stack code. The macros are now all
4699 collected in safestack.h . Each macro is defined in terms of
4700 a "stack macro" of the form SKM_<name>(type, a, b). The
4701 DEBUG_SAFESTACK is now handled in terms of function casts,
4702 this has the advantage of retaining type safety without the
4703 use of additional functions. If DEBUG_SAFESTACK is not defined
4704 then the non typesafe macros are used instead. Also modified the
4705 mkstack.pl script to handle the new form. Needs testing to see
4706 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4707 the default if no major problems. Similar behaviour for ASN1_SET_OF
4708 and PKCS12_STACK_OF.
4711 *) When some versions of IIS use the 'NET' form of private key the
4712 key derivation algorithm is different. Normally MD5(password) is
4713 used as a 128 bit RC4 key. In the modified case
4714 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4715 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4716 as the old Netscape_RSA functions except they have an additional
4717 'sgckey' parameter which uses the modified algorithm. Also added
4718 an -sgckey command line option to the rsa utility. Thanks to
4719 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4720 algorithm to openssl-dev.
4723 *) The evp_local.h macros were using 'c.##kname' which resulted in
4724 invalid expansion on some systems (SCO 5.0.5 for example).
4725 Corrected to 'c.kname'.
4726 [Phillip Porch <root@theporch.com>]
4728 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4729 a STACK of email addresses from a certificate or request, these look
4730 in the subject name and the subject alternative name extensions and
4731 omit any duplicate addresses.
4734 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4735 This makes DSA verification about 2 % faster.
4738 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4739 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4740 plus overhead for 1024 bit moduli).
4741 This makes exponentiations about 0.5 % faster for 1024 bit
4742 exponents (as measured by "openssl speed rsa2048").
4745 *) Rename memory handling macros to avoid conflicts with other
4747 Malloc => OPENSSL_malloc
4748 Malloc_locked => OPENSSL_malloc_locked
4749 Realloc => OPENSSL_realloc
4750 Free => OPENSSL_free
4753 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4754 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4757 *) CygWin32 support.
4758 [John Jarvie <jjarvie@newsguy.com>]
4760 *) The type-safe stack code has been rejigged. It is now only compiled
4761 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4762 by default all type-specific stack functions are "#define"d back to
4763 standard stack functions. This results in more streamlined output
4764 but retains the type-safety checking possibilities of the original
4768 *) The STACK code has been cleaned up, and certain type declarations
4769 that didn't make a lot of sense have been brought in line. This has
4770 also involved a cleanup of sorts in safestack.h to more correctly
4771 map type-safe stack functions onto their plain stack counterparts.
4772 This work has also resulted in a variety of "const"ifications of
4773 lots of the code, especially "_cmp" operations which should normally
4774 be prototyped with "const" parameters anyway.
4777 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4778 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4779 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4780 where all of 'md' is used each time the PRNG is used, but 'state'
4781 is used only indexed by a cyclic counter. As entropy may not be
4782 well distributed from the beginning, 'md' is important as a
4783 chaining variable. However, the output function chains only half
4784 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4785 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4786 in all of 'state' being rewritten, with the new values depending
4787 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4790 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4791 the handshake is continued after ssl_verify_cert_chain();
4792 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4793 can lead to 'unexplainable' connection aborts later.
4794 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4796 *) Major EVP API cipher revision.
4797 Add hooks for extra EVP features. This allows various cipher
4798 parameters to be set in the EVP interface. Support added for variable
4799 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4800 setting of RC2 and RC5 parameters.
4802 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4805 Remove lots of duplicated code from the EVP library. For example *every*
4806 cipher init() function handles the 'iv' in the same way according to the
4807 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4808 for CFB and OFB modes they zero ctx->num.
4810 New functionality allows removal of S/MIME code RC2 hack.
4812 Most of the routines have the same form and so can be declared in terms
4815 By shifting this to the top level EVP_CipherInit() it can be removed from
4816 all individual ciphers. If the cipher wants to handle IVs or keys
4817 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4820 Change lots of functions like EVP_EncryptUpdate() to now return a
4821 value: although software versions of the algorithms cannot fail
4822 any installed hardware versions can.
4825 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4826 this option is set, tolerate broken clients that send the negotiated
4827 protocol version number instead of the requested protocol version
4831 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4832 i.e. non-zero for export ciphersuites, zero otherwise.
4833 Previous versions had this flag inverted, inconsistent with
4834 rsa_tmp_cb (..._TMP_RSA_CB).
4835 [Bodo Moeller; problem reported by Amit Chopra]
4837 *) Add missing DSA library text string. Work around for some IIS
4838 key files with invalid SEQUENCE encoding.
4841 *) Add a document (doc/standards.txt) that list all kinds of standards
4842 and so on that are implemented in OpenSSL.
4845 *) Enhance c_rehash script. Old version would mishandle certificates
4846 with the same subject name hash and wouldn't handle CRLs at all.
4847 Added -fingerprint option to crl utility, to support new c_rehash
4851 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4854 *) Fix for SSL server purpose checking. Server checking was
4855 rejecting certificates which had extended key usage present
4856 but no ssl client purpose.
4857 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4859 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4860 is a little unclear about how a blank password is handled.
4861 Since the password in encoded as a BMPString with terminating
4862 double NULL a zero length password would end up as just the
4863 double NULL. However no password at all is different and is
4864 handled differently in the PKCS#12 key generation code. NS
4865 treats a blank password as zero length. MSIE treats it as no
4866 password on export: but it will try both on import. We now do
4867 the same: PKCS12_parse() tries zero length and no password if
4868 the password is set to "" or NULL (NULL is now a valid password:
4869 it wasn't before) as does the pkcs12 application.
4872 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4873 perror when PEM_read_bio_X509_REQ fails, the error message must
4874 be obtained from the error queue.
4877 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4878 it in ERR_remove_state if appropriate, and change ERR_get_state
4879 accordingly to avoid race conditions (this is necessary because
4880 thread_hash is no longer constant once set).
4883 *) Bugfix for linux-elf makefile.one.
4886 *) RSA_get_default_method() will now cause a default
4887 RSA_METHOD to be chosen if one doesn't exist already.
4888 Previously this was only set during a call to RSA_new()
4889 or RSA_new_method(NULL) meaning it was possible for
4890 RSA_get_default_method() to return NULL.
4893 *) Added native name translation to the existing DSO code
4894 that will convert (if the flag to do so is set) filenames
4895 that are sufficiently small and have no path information
4896 into a canonical native form. Eg. "blah" converted to
4897 "libblah.so" or "blah.dll" etc.
4900 *) New function ERR_error_string_n(e, buf, len) which is like
4901 ERR_error_string(e, buf), but writes at most 'len' bytes
4902 including the 0 terminator. For ERR_error_string_n, 'buf'
4904 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4906 *) CONF library reworked to become more general. A new CONF
4907 configuration file reader "class" is implemented as well as a
4908 new functions (NCONF_*, for "New CONF") to handle it. The now
4909 old CONF_* functions are still there, but are reimplemented to
4910 work in terms of the new functions. Also, a set of functions
4911 to handle the internal storage of the configuration data is
4912 provided to make it easier to write new configuration file
4913 reader "classes" (I can definitely see something reading a
4914 configuration file in XML format, for example), called _CONF_*,
4915 or "the configuration storage API"...
4917 The new configuration file reading functions are:
4919 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4920 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4922 NCONF_default, NCONF_WIN32
4924 NCONF_dump_fp, NCONF_dump_bio
4926 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4927 NCONF_new creates a new CONF object. This works in the same way
4928 as other interfaces in OpenSSL, like the BIO interface.
4929 NCONF_dump_* dump the internal storage of the configuration file,
4930 which is useful for debugging. All other functions take the same
4931 arguments as the old CONF_* functions wth the exception of the
4932 first that must be a `CONF *' instead of a `LHASH *'.
4934 To make it easer to use the new classes with the old CONF_* functions,
4935 the function CONF_set_default_method is provided.
4938 *) Add '-tls1' option to 'openssl ciphers', which was already
4939 mentioned in the documentation but had not been implemented.
4940 (This option is not yet really useful because even the additional
4941 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4944 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4945 OpenSSL-based applications) load shared libraries and bind to
4946 them in a portable way.
4947 [Geoff Thorpe, with contributions from Richard Levitte]
4949 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4951 *) Make sure _lrotl and _lrotr are only used with MSVC.
4953 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4954 (the default implementation of RAND_status).
4956 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4957 to '-clrext' (= clear extensions), as intended and documented.
4958 [Bodo Moeller; inconsistency pointed out by Michael Attili
4961 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4962 was larger than the MD block size.
4963 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4965 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4966 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4967 using the passed key: if the passed key was a private key the result
4968 of X509_print(), for example, would be to print out all the private key
4972 *) des_quad_cksum() byte order bug fix.
4973 [Ulf Möller, using the problem description in krb4-0.9.7, where
4974 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4976 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4978 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4980 *) For easily testing in shell scripts whether some command
4981 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4982 returns with exit code 0 iff no command of the given name is available.
4983 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4984 the output goes to stdout and nothing is printed to stderr.
4985 Additional arguments are always ignored.
4987 Since for each cipher there is a command of the same name,
4988 the 'no-cipher' compilation switches can be tested this way.
4990 ('openssl no-XXX' is not able to detect pseudo-commands such
4991 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4994 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4997 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4998 is set; it will be thrown away anyway because each handshake creates
5000 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5001 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5002 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5003 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5006 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5007 'Q' and 'R' lose their special meanings (quit/renegotiate).
5008 This is part of what -quiet does; unlike -quiet, -ign_eof
5009 does not suppress any output.
5012 *) Add compatibility options to the purpose and trust code. The
5013 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5014 accepts a certificate or CA, this was the previous behaviour,
5015 with all the associated security issues.
5017 X509_TRUST_COMPAT is the old trust behaviour: only and
5018 automatically trust self signed roots in certificate store. A
5019 new trust setting X509_TRUST_DEFAULT is used to specify that
5020 a purpose has no associated trust setting and it should instead
5021 use the value in the default purpose.
5024 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5025 and fix a memory leak.
5028 *) In util/mkerr.pl (which implements 'make errors'), preserve
5029 reason strings from the previous version of the .c file, as
5030 the default to have only downcase letters (and digits) in
5031 automatically generated reasons codes is not always appropriate.
5034 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5035 using strerror. Previously, ERR_reason_error_string() returned
5036 library names as reason strings for SYSerr; but SYSerr is a special
5037 case where small numbers are errno values, not library numbers.
5040 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5041 converts DSA parameters into DH parameters. (When creating parameters,
5042 DSA_generate_parameters is used.)
5045 *) Include 'length' (recommended exponent length) in C code generated
5046 by 'openssl dhparam -C'.
5049 *) The second argument to set_label in perlasm was already being used
5050 so couldn't be used as a "file scope" flag. Moved to third argument
5054 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5055 instead of RAND_bytes for encryption IVs and salts.
5058 *) Include RAND_status() into RAND_METHOD instead of implementing
5059 it only for md_rand.c Otherwise replacing the PRNG by calling
5060 RAND_set_rand_method would be impossible.
5063 *) Don't let DSA_generate_key() enter an infinite loop if the random
5064 number generation fails.
5067 *) New 'rand' application for creating pseudo-random output.
5070 *) Added configuration support for Linux/IA64
5071 [Rolf Haberrecker <rolf@suse.de>]
5073 *) Assembler module support for Mingw32.
5076 *) Shared library support for HPUX (in shlib/).
5077 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5079 *) Shared library support for Solaris gcc.
5080 [Lutz Behnke <behnke@trustcenter.de>]
5082 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5084 *) PKCS7_encrypt() was adding text MIME headers twice because they
5085 were added manually and by SMIME_crlf_copy().
5088 *) In bntest.c don't call BN_rand with zero bits argument.
5089 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5091 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5092 case was implemented. This caused BN_div_recp() to fail occasionally.
5095 *) Add an optional second argument to the set_label() in the perl
5096 assembly language builder. If this argument exists and is set
5097 to 1 it signals that the assembler should use a symbol whose
5098 scope is the entire file, not just the current function. This
5099 is needed with MASM which uses the format label:: for this scope.
5100 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5102 *) Change the ASN1 types so they are typedefs by default. Before
5103 almost all types were #define'd to ASN1_STRING which was causing
5104 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5108 *) Change names of new functions to the new get1/get0 naming
5109 convention: After 'get1', the caller owns a reference count
5110 and has to call ..._free; 'get0' returns a pointer to some
5111 data structure without incrementing reference counters.
5112 (Some of the existing 'get' functions increment a reference
5113 counter, some don't.)
5114 Similarly, 'set1' and 'add1' functions increase reference
5115 counters or duplicate objects.
5118 *) Allow for the possibility of temp RSA key generation failure:
5119 the code used to assume it always worked and crashed on failure.
5122 *) Fix potential buffer overrun problem in BIO_printf().
5123 [Ulf Möller, using public domain code by Patrick Powell; problem
5124 pointed out by David Sacerdote <das33@cornell.edu>]
5126 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5127 RAND_egd() and RAND_status(). In the command line application,
5128 the EGD socket can be specified like a seed file using RANDFILE
5132 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5133 Some CAs (e.g. Verisign) distribute certificates in this form.
5136 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5137 list to exclude them. This means that no special compilation option
5138 is needed to use anonymous DH: it just needs to be included in the
5142 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5143 EVP_MD_type. The old functionality is available in a new macro called
5144 EVP_MD_md(). Change code that uses it and update docs.
5147 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5148 where the 'void *' argument is replaced by a function pointer argument.
5149 Previously 'void *' was abused to point to functions, which works on
5150 many platforms, but is not correct. As these functions are usually
5151 called by macros defined in OpenSSL header files, most source code
5152 should work without changes.
5155 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5156 sections with information on -D... compiler switches used for
5157 compiling the library so that applications can see them. To enable
5158 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5159 must be defined. E.g.,
5160 #define OPENSSL_ALGORITHM_DEFINES
5161 #include <openssl/opensslconf.h>
5162 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5163 [Richard Levitte, Ulf and Bodo Möller]
5165 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5169 *) Change the 'other' type in certificate aux info to a STACK_OF
5170 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5171 the required ASN1 format: arbitrary types determined by an OID.
5174 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5175 argument to 'req'. This is not because the function is newer or
5176 better than others it just uses the work 'NEW' in the certificate
5177 request header lines. Some software needs this.
5180 *) Reorganise password command line arguments: now passwords can be
5181 obtained from various sources. Delete the PEM_cb function and make
5182 it the default behaviour: i.e. if the callback is NULL and the
5183 usrdata argument is not NULL interpret it as a null terminated pass
5184 phrase. If usrdata and the callback are NULL then the pass phrase
5185 is prompted for as usual.
5188 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5189 the support is automatically enabled. The resulting binaries will
5190 autodetect the card and use it if present.
5191 [Ben Laurie and Compaq Inc.]
5193 *) Work around for Netscape hang bug. This sends certificate request
5194 and server done in one record. Since this is perfectly legal in the
5195 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5196 the bugs/SSLv3 entry for more info.
5199 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5202 *) Add -rand argument to smime and pkcs12 applications and read/write
5206 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5209 *) Add command line password options to the remaining applications.
5212 *) Bug fix for BN_div_recp() for numerators with an even number of
5216 *) More tests in bntest.c, and changed test_bn output.
5219 *) ./config recognizes MacOS X now.
5222 *) Bug fix for BN_div() when the first words of num and divsor are
5223 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5226 *) Add support for various broken PKCS#8 formats, and command line
5227 options to produce them.
5230 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5231 get temporary BIGNUMs from a BN_CTX.
5234 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5238 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5239 include a #define from the old name to the new. The original intent
5240 was that statically linked binaries could for example just call
5241 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5242 link with digests. This never worked becayse SSLeay_add_all_digests()
5243 and SSLeay_add_all_ciphers() were in the same source file so calling
5244 one would link with the other. They are now in separate source files.
5247 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5250 *) Use a less unusual form of the Miller-Rabin primality test (it used
5251 a binary algorithm for exponentiation integrated into the Miller-Rabin
5252 loop, our standard modexp algorithms are faster).
5255 *) Support for the EBCDIC character set completed.
5256 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5258 *) Source code cleanups: use const where appropriate, eliminate casts,
5259 use void * instead of char * in lhash.
5262 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5263 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5264 this the server could overwrite ephemeral keys that the client
5268 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5269 using 50 iterations of the Rabin-Miller test.
5271 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5272 iterations of the Rabin-Miller test as required by the appendix
5273 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5274 As BN_is_prime_fasttest includes trial division, DSA parameter
5275 generation becomes much faster.
5277 This implies a change for the callback functions in DSA_is_prime
5278 and DSA_generate_parameters: The callback function is called once
5279 for each positive witness in the Rabin-Miller test, not just
5280 occasionally in the inner loop; and the parameters to the
5281 callback function now provide an iteration count for the outer
5282 loop rather than for the current invocation of the inner loop.
5283 DSA_generate_parameters additionally can call the callback
5284 function with an 'iteration count' of -1, meaning that a
5285 candidate has passed the trial division test (when q is generated
5286 from an application-provided seed, trial division is skipped).
5289 *) New function BN_is_prime_fasttest that optionally does trial
5290 division before starting the Rabin-Miller test and has
5291 an additional BN_CTX * argument (whereas BN_is_prime always
5292 has to allocate at least one BN_CTX).
5293 'callback(1, -1, cb_arg)' is called when a number has passed the
5294 trial division stage.
5297 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5301 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5304 *) New function BN_pseudo_rand().
5307 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5308 bignum version of BN_from_montgomery() with the working code from
5309 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5313 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5314 made it impossible to use the same SSL_SESSION data structure in
5315 SSL2 clients in multiple threads.
5318 *) The return value of RAND_load_file() no longer counts bytes obtained
5319 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5320 to seed the PRNG (previously an explicit byte count was required).
5321 [Ulf Möller, Bodo Möller]
5323 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5324 used (char *) instead of (void *) and had casts all over the place.
5327 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5330 *) Retain source code compatibility for BN_prime_checks macro:
5331 BN_is_prime(..., BN_prime_checks, ...) now uses
5332 BN_prime_checks_for_size to determine the appropriate number of
5333 Rabin-Miller iterations.
5336 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5337 DH_CHECK_P_NOT_SAFE_PRIME.
5338 (Check if this is true? OpenPGP calls them "strong".)
5341 *) Merge the functionality of "dh" and "gendh" programs into a new program
5342 "dhparam". The old programs are retained for now but will handle DH keys
5343 (instead of parameters) in future.
5346 *) Make the ciphers, s_server and s_client programs check the return values
5347 when a new cipher list is set.
5350 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5351 ciphers. Before when the 56bit ciphers were enabled the sorting was
5354 The syntax for the cipher sorting has been extended to support sorting by
5355 cipher-strength (using the strength_bits hard coded in the tables).
5356 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5358 Fix a bug in the cipher-command parser: when supplying a cipher command
5359 string with an "undefined" symbol (neither command nor alphanumeric
5360 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5361 an error is flagged.
5363 Due to the strength-sorting extension, the code of the
5364 ssl_create_cipher_list() function was completely rearranged. I hope that
5365 the readability was also increased :-)
5366 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5368 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5369 for the first serial number and places 2 in the serial number file. This
5370 avoids problems when the root CA is created with serial number zero and
5371 the first user certificate has the same issuer name and serial number
5375 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5376 the new code. Add documentation for this stuff.
5379 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5380 X509_*() to X509at_*() on the grounds that they don't handle X509
5381 structures and behave in an analagous way to the X509v3 functions:
5382 they shouldn't be called directly but wrapper functions should be used
5385 So we also now have some wrapper functions that call the X509at functions
5386 when passed certificate requests. (TO DO: similar things can be done with
5387 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5388 things. Some of these need some d2i or i2d and print functionality
5389 because they handle more complex structures.)
5392 *) Add missing #ifndefs that caused missing symbols when building libssl
5393 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5394 NO_RSA in ssl/s2*.c.
5395 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5397 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5398 has a return value which indicates the quality of the random data
5399 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5400 error queue. New function RAND_pseudo_bytes() generates output that is
5401 guaranteed to be unique but not unpredictable. RAND_add is like
5402 RAND_seed, but takes an extra argument for an entropy estimate
5403 (RAND_seed always assumes full entropy).
5406 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5407 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5408 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5409 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5410 false-positive rate of at most 2^-80 for random input.
5413 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5416 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5417 in the 0.9.5 release), this returns the chain
5418 from an X509_CTX structure with a dup of the stack and all
5419 the X509 reference counts upped: so the stack will exist
5420 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5423 Also make SSL_SESSION_print() print out the verify return
5427 *) Add manpage for the pkcs12 command. Also change the default
5428 behaviour so MAC iteration counts are used unless the new
5429 -nomaciter option is used. This improves file security and
5430 only older versions of MSIE (4.0 for example) need it.
5433 *) Honor the no-xxx Configure options when creating .DEF files.
5436 *) Add PKCS#10 attributes to field table: challengePassword,
5437 unstructuredName and unstructuredAddress. These are taken from
5438 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5439 international characters are used.
5441 More changes to X509_ATTRIBUTE code: allow the setting of types
5442 based on strings. Remove the 'loc' parameter when adding
5443 attributes because these will be a SET OF encoding which is sorted
5447 *) Initial changes to the 'req' utility to allow request generation
5448 automation. This will allow an application to just generate a template
5449 file containing all the field values and have req construct the
5452 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5453 used all over the place including certificate requests and PKCS#7
5454 structures. They are currently handled manually where necessary with
5455 some primitive wrappers for PKCS#7. The new functions behave in a
5456 manner analogous to the X509 extension functions: they allow
5457 attributes to be looked up by NID and added.
5459 Later something similar to the X509V3 code would be desirable to
5460 automatically handle the encoding, decoding and printing of the
5461 more complex types. The string types like challengePassword can
5462 be handled by the string table functions.
5464 Also modified the multi byte string table handling. Now there is
5465 a 'global mask' which masks out certain types. The table itself
5466 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5467 is useful when for example there is only one permissible type
5468 (as in countryName) and using the mask might result in no valid
5472 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5473 SSL_get_peer_finished to allow applications to obtain the latest
5474 Finished messages sent to the peer or expected from the peer,
5475 respectively. (SSL_get_peer_finished is usually the Finished message
5476 actually received from the peer, otherwise the protocol will be aborted.)
5478 As the Finished message are message digests of the complete handshake
5479 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5480 be used for external authentication procedures when the authentication
5481 provided by SSL/TLS is not desired or is not enough.
5484 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5485 the host supports BWX extension and if Compaq C is present on the
5486 $PATH. Just exploiting of the BWX extension results in 20-30%
5487 performance kick for some algorithms, e.g. DES and RC4 to mention
5488 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5492 *) Add support for MS "fast SGC". This is arguably a violation of the
5493 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5494 weak crypto and after checking the certificate is SGC a second one
5495 with strong crypto. MS SGC stops the first handshake after receiving
5496 the server certificate message and sends a second client hello. Since
5497 a server will typically do all the time consuming operations before
5498 expecting any further messages from the client (server key exchange
5499 is the most expensive) there is little difference between the two.
5501 To get OpenSSL to support MS SGC we have to permit a second client
5502 hello message after we have sent server done. In addition we have to
5503 reset the MAC if we do get this second client hello.
5506 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5507 if a DER encoded private key is RSA or DSA traditional format. Changed
5508 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5509 format DER encoded private key. Newer code should use PKCS#8 format which
5510 has the key type encoded in the ASN1 structure. Added DER private key
5511 support to pkcs8 application.
5514 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5515 ciphersuites has been selected (as required by the SSL 3/TLS 1
5516 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5517 is set, we interpret this as a request to violate the specification
5518 (the worst that can happen is a handshake failure, and 'correct'
5519 behaviour would result in a handshake failure anyway).
5522 *) In SSL_CTX_add_session, take into account that there might be multiple
5523 SSL_SESSION structures with the same session ID (e.g. when two threads
5524 concurrently obtain them from an external cache).
5525 The internal cache can handle only one SSL_SESSION with a given ID,
5526 so if there's a conflict, we now throw out the old one to achieve
5530 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5531 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5532 some routines that use cipher OIDs: some ciphers do not have OIDs
5533 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5537 *) Simplify the trust setting structure and code. Now we just have
5538 two sequences of OIDs for trusted and rejected settings. These will
5539 typically have values the same as the extended key usage extension
5540 and any application specific purposes.
5542 The trust checking code now has a default behaviour: it will just
5543 check for an object with the same NID as the passed id. Functions can
5544 be provided to override either the default behaviour or the behaviour
5545 for a given id. SSL client, server and email already have functions
5546 in place for compatibility: they check the NID and also return "trusted"
5547 if the certificate is self signed.
5550 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5551 traditional format into an EVP_PKEY structure.
5554 *) Add a password callback function PEM_cb() which either prompts for
5555 a password if usr_data is NULL or otherwise assumes it is a null
5556 terminated password. Allow passwords to be passed on command line
5557 environment or config files in a few more utilities.
5560 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5561 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5562 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5563 Update documentation.
5566 *) Support for ASN1 "NULL" type. This could be handled before by using
5567 ASN1_TYPE but there wasn't any function that would try to read a NULL
5568 and produce an error if it couldn't. For compatibility we also have
5569 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5570 don't allocate anything because they don't need to.
5573 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5575 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5577 *) Rebuild of the memory allocation routines used by OpenSSL code and
5578 possibly others as well. The purpose is to make an interface that
5579 provide hooks so anyone can build a separate set of allocation and
5580 deallocation routines to be used by OpenSSL, for example memory
5581 pool implementations, or something else, which was previously hard
5582 since Malloc(), Realloc() and Free() were defined as macros having
5583 the values malloc, realloc and free, respectively (except for Win32
5584 compilations). The same is provided for memory debugging code.
5585 OpenSSL already comes with functionality to find memory leaks, but
5586 this gives people a chance to debug other memory problems.
5588 With these changes, a new set of functions and macros have appeared:
5590 CRYPTO_set_mem_debug_functions() [F]
5591 CRYPTO_get_mem_debug_functions() [F]
5592 CRYPTO_dbg_set_options() [F]
5593 CRYPTO_dbg_get_options() [F]
5594 CRYPTO_malloc_debug_init() [M]
5596 The memory debug functions are NULL by default, unless the library
5597 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5598 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5599 gives the standard debugging functions that come with OpenSSL) or
5600 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5601 provided by the library user) must be used. When the standard
5602 debugging functions are used, CRYPTO_dbg_set_options can be used to
5603 request additional information:
5604 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5605 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5607 Also, things like CRYPTO_set_mem_functions will always give the
5608 expected result (the new set of functions is used for allocation
5609 and deallocation) at all times, regardless of platform and compiler
5612 To finish it up, some functions that were never use in any other
5613 way than through macros have a new API and new semantic:
5616 CRYPTO_dbg_realloc()
5619 All macros of value have retained their old syntax.
5620 [Richard Levitte and Bodo Moeller]
5622 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5623 ordering of SMIMECapabilities wasn't in "strength order" and there
5624 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5628 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5629 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5630 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5632 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5633 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5634 functionality to handle multipart/signed properly) and a utility
5635 called 'smime' to call all this stuff. This is based on code I
5636 originally wrote for Celo who have kindly allowed it to be
5637 included in OpenSSL.
5640 *) Add variants des_set_key_checked and des_set_key_unchecked of
5641 des_set_key (aka des_key_sched). Global variable des_check_key
5642 decides which of these is called by des_set_key; this way
5643 des_check_key behaves as it always did, but applications and
5644 the library itself, which was buggy for des_check_key == 1,
5645 have a cleaner way to pick the version they need.
5648 *) New function PKCS12_newpass() which changes the password of a
5652 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5653 dynamic mix. In both cases the ids can be used as an index into the
5654 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5655 functions so they accept a list of the field values and the
5656 application doesn't need to directly manipulate the X509_TRUST
5660 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5664 *) Modify the way the V3 extension code looks up extensions. This now
5665 works in a similar way to the object code: we have some "standard"
5666 extensions in a static table which is searched with OBJ_bsearch()
5667 and the application can add dynamic ones if needed. The file
5668 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5669 updated whenever a new extension is added to the core code and kept
5670 in ext_nid order. There is a simple program 'tabtest.c' which checks
5671 this. New extensions are not added too often so this file can readily
5672 be maintained manually.
5674 There are two big advantages in doing things this way. The extensions
5675 can be looked up immediately and no longer need to be "added" using
5676 X509V3_add_standard_extensions(): this function now does nothing.
5677 [Side note: I get *lots* of email saying the extension code doesn't
5678 work because people forget to call this function]
5679 Also no dynamic allocation is done unless new extensions are added:
5680 so if we don't add custom extensions there is no need to call
5681 X509V3_EXT_cleanup().
5684 *) Modify enc utility's salting as follows: make salting the default. Add a
5685 magic header, so unsalted files fail gracefully instead of just decrypting
5686 to garbage. This is because not salting is a big security hole, so people
5687 should be discouraged from doing it.
5690 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5691 digest to be passed on the command line but it only used this
5692 parameter when signing a certificate. Modified so all relevant
5693 operations are affected by the digest parameter including the
5694 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5695 DSA key was used because it didn't fix the digest.
5698 *) Initial certificate chain verify code. Currently tests the untrusted
5699 certificates for consistency with the verify purpose (which is set
5700 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5702 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5703 this is because it will reject chains with invalid extensions whereas
5704 every previous version of OpenSSL and SSLeay made no checks at all.
5706 Trust code: checks the root CA for the relevant trust settings. Trust
5707 settings have an initial value consistent with the verify purpose: e.g.
5708 if the verify purpose is for SSL client use it expects the CA to be
5709 trusted for SSL client use. However the default value can be changed to
5710 permit custom trust settings: one example of this would be to only trust
5711 certificates from a specific "secure" set of CAs.
5713 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5714 which should be used for version portability: especially since the
5715 verify structure is likely to change more often now.
5717 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5718 to set them. If not set then assume SSL clients will verify SSL servers
5721 Two new options to the verify program: -untrusted allows a set of
5722 untrusted certificates to be passed in and -purpose which sets the
5723 intended purpose of the certificate. If a purpose is set then the
5724 new chain verify code is used to check extension consistency.
5727 *) Support for the authority information access extension.
5730 *) Modify RSA and DSA PEM read routines to transparently handle
5731 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5732 public keys in a format compatible with certificate
5733 SubjectPublicKeyInfo structures. Unfortunately there were already
5734 functions called *_PublicKey_* which used various odd formats so
5735 these are retained for compatibility: however the DSA variants were
5736 never in a public release so they have been deleted. Changed dsa/rsa
5737 utilities to handle the new format: note no releases ever handled public
5738 keys so we should be OK.
5740 The primary motivation for this change is to avoid the same fiasco
5741 that dogs private keys: there are several incompatible private key
5742 formats some of which are standard and some OpenSSL specific and
5743 require various evil hacks to allow partial transparent handling and
5744 even then it doesn't work with DER formats. Given the option anything
5745 other than PKCS#8 should be dumped: but the other formats have to
5746 stay in the name of compatibility.
5748 With public keys and the benefit of hindsight one standard format
5749 is used which works with EVP_PKEY, RSA or DSA structures: though
5750 it clearly returns an error if you try to read the wrong kind of key.
5752 Added a -pubkey option to the 'x509' utility to output the public key.
5753 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5754 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5755 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5756 that do the same as the EVP_PKEY_assign_*() except they up the
5757 reference count of the added key (they don't "swallow" the
5761 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5762 CRLs would fail if the file contained no certificates or no CRLs:
5763 added a new function to read in both types and return the number
5764 read: this means that if none are read it will be an error. The
5765 DER versions of the certificate and CRL reader would always fail
5766 because it isn't possible to mix certificates and CRLs in DER format
5767 without choking one or the other routine. Changed this to just read
5768 a certificate: this is the best we can do. Also modified the code
5769 in apps/verify.c to take notice of return codes: it was previously
5770 attempting to read in certificates from NULL pointers and ignoring
5771 any errors: this is one reason why the cert and CRL reader seemed
5772 to work. It doesn't check return codes from the default certificate
5773 routines: these may well fail if the certificates aren't installed.
5776 *) Code to support otherName option in GeneralName.
5779 *) First update to verify code. Change the verify utility
5780 so it warns if it is passed a self signed certificate:
5781 for consistency with the normal behaviour. X509_verify
5782 has been modified to it will now verify a self signed
5783 certificate if *exactly* the same certificate appears
5784 in the store: it was previously impossible to trust a
5785 single self signed certificate. This means that:
5786 openssl verify ss.pem
5787 now gives a warning about a self signed certificate but
5788 openssl verify -CAfile ss.pem ss.pem
5792 *) For servers, store verify_result in SSL_SESSION data structure
5793 (and add it to external session representation).
5794 This is needed when client certificate verifications fails,
5795 but an application-provided verification callback (set by
5796 SSL_CTX_set_cert_verify_callback) allows accepting the session
5797 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5798 but returns 1): When the session is reused, we have to set
5799 ssl->verify_result to the appropriate error code to avoid
5801 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5803 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5804 case in PKCS7_dataInit() where the signed PKCS7 structure
5805 didn't contain any existing data because it was being created.
5806 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5808 *) Add a salt to the key derivation routines in enc.c. This
5809 forms the first 8 bytes of the encrypted file. Also add a
5810 -S option to allow a salt to be input on the command line.
5813 *) New function X509_cmp(). Oddly enough there wasn't a function
5814 to compare two certificates. We do this by working out the SHA1
5815 hash and comparing that. X509_cmp() will be needed by the trust
5819 *) SSL_get1_session() is like SSL_get_session(), but increments
5820 the reference count in the SSL_SESSION returned.
5821 [Geoff Thorpe <geoff@eu.c2.net>]
5823 *) Fix for 'req': it was adding a null to request attributes.
5824 Also change the X509_LOOKUP and X509_INFO code to handle
5825 certificate auxiliary information.
5828 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5832 *) Add the possibility to add extra information to the memory leak
5833 detecting output, to form tracebacks, showing from where each
5834 allocation was originated: CRYPTO_push_info("constant string") adds
5835 the string plus current file name and line number to a per-thread
5836 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5837 is like calling CYRPTO_pop_info() until the stack is empty.
5838 Also updated memory leak detection code to be multi-thread-safe.
5841 *) Add options -text and -noout to pkcs7 utility and delete the
5842 encryption options which never did anything. Update docs.
5845 *) Add options to some of the utilities to allow the pass phrase
5846 to be included on either the command line (not recommended on
5847 OSes like Unix) or read from the environment. Update the
5848 manpages and fix a few bugs.
5851 *) Add a few manpages for some of the openssl commands.
5854 *) Fix the -revoke option in ca. It was freeing up memory twice,
5855 leaking and not finding already revoked certificates.
5858 *) Extensive changes to support certificate auxiliary information.
5859 This involves the use of X509_CERT_AUX structure and X509_AUX
5860 functions. An X509_AUX function such as PEM_read_X509_AUX()
5861 can still read in a certificate file in the usual way but it
5862 will also read in any additional "auxiliary information". By
5863 doing things this way a fair degree of compatibility can be
5864 retained: existing certificates can have this information added
5865 using the new 'x509' options.
5867 Current auxiliary information includes an "alias" and some trust
5868 settings. The trust settings will ultimately be used in enhanced
5869 certificate chain verification routines: currently a certificate
5870 can only be trusted if it is self signed and then it is trusted
5874 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5875 The problem was that one of the replacement routines had not been working
5876 since SSLeay releases. For now the offending routine has been replaced
5877 with non-optimised assembler. Even so, this now gives around 95%
5878 performance improvement for 1024 bit RSA signs.
5881 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5882 handling. Most clients have the effective key size in bits equal to
5883 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5884 A few however don't do this and instead use the size of the decrypted key
5885 to determine the RC2 key length and the AlgorithmIdentifier to determine
5886 the effective key length. In this case the effective key length can still
5887 be 40 bits but the key length can be 168 bits for example. This is fixed
5888 by manually forcing an RC2 key into the EVP_PKEY structure because the
5889 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5890 the key length and effective key length are equal.
5893 *) Add a bunch of functions that should simplify the creation of
5894 X509_NAME structures. Now you should be able to do:
5895 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5896 and have it automatically work out the correct field type and fill in
5897 the structures. The more adventurous can try:
5898 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5899 and it will (hopefully) work out the correct multibyte encoding.
5902 *) Change the 'req' utility to use the new field handling and multibyte
5903 copy routines. Before the DN field creation was handled in an ad hoc
5904 way in req, ca, and x509 which was rather broken and didn't support
5905 BMPStrings or UTF8Strings. Since some software doesn't implement
5906 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5907 using the dirstring_type option. See the new comment in the default
5908 openssl.cnf for more info.
5911 *) Make crypto/rand/md_rand.c more robust:
5912 - Assure unique random numbers after fork().
5913 - Make sure that concurrent threads access the global counter and
5914 md serializably so that we never lose entropy in them
5915 or use exactly the same state in multiple threads.
5916 Access to the large state is not always serializable because
5917 the additional locking could be a performance killer, and
5918 md should be large enough anyway.
5921 *) New file apps/app_rand.c with commonly needed functionality
5922 for handling the random seed file.
5924 Use the random seed file in some applications that previously did not:
5926 dsaparam -genkey (which also ignored its '-rand' option),
5929 x509 (when signing).
5930 Except on systems with /dev/urandom, it is crucial to have a random
5931 seed file at least for key creation, DSA signing, and for DH exchanges;
5932 for RSA signatures we could do without one.
5934 gendh and gendsa (unlike genrsa) used to read only the first byte
5935 of each file listed in the '-rand' option. The function as previously
5936 found in genrsa is now in app_rand.c and is used by all programs
5937 that support '-rand'.
5940 *) In RAND_write_file, use mode 0600 for creating files;
5941 don't just chmod when it may be too late.
5944 *) Report an error from X509_STORE_load_locations
5945 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5948 *) New function ASN1_mbstring_copy() this copies a string in either
5949 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5950 into an ASN1_STRING type. A mask of permissible types is passed
5951 and it chooses the "minimal" type to use or an error if not type
5955 *) Add function equivalents to the various macros in asn1.h. The old
5956 macros are retained with an M_ prefix. Code inside the library can
5957 use the M_ macros. External code (including the openssl utility)
5958 should *NOT* in order to be "shared library friendly".
5961 *) Add various functions that can check a certificate's extensions
5962 to see if it usable for various purposes such as SSL client,
5963 server or S/MIME and CAs of these types. This is currently
5964 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5965 verification. Also added a -purpose flag to x509 utility to
5966 print out all the purposes.
5969 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5973 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5974 for, obtain and decode and extension and obtain its critical flag.
5975 This allows all the necessary extension code to be handled in a
5976 single function call.
5979 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5980 platforms. See crypto/rc4/rc4_enc.c for further details.
5983 *) New -noout option to asn1parse. This causes no output to be produced
5984 its main use is when combined with -strparse and -out to extract data
5985 from a file (which may not be in ASN.1 format).
5988 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5989 when producing the local key id.
5990 [Richard Levitte <levitte@stacken.kth.se>]
5992 *) New option -dhparam in s_server. This allows a DH parameter file to be
5993 stated explicitly. If it is not stated then it tries the first server
5994 certificate file. The previous behaviour hard coded the filename
5998 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5999 a public key to be input or output. For example:
6000 openssl rsa -in key.pem -pubout -out pubkey.pem
6001 Also added necessary DSA public key functions to handle this.
6004 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6005 in the message. This was handled by allowing
6006 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6007 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6009 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6010 to the end of the strings whereas this didn't. This would cause problems
6011 if strings read with d2i_ASN1_bytes() were later modified.
6012 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6014 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6015 data and it contains EOF it will end up returning an error. This is
6016 caused by input 46 bytes long. The cause is due to the way base64
6017 BIOs find the start of base64 encoded data. They do this by trying a
6018 trial decode on each line until they find one that works. When they
6019 do a flag is set and it starts again knowing it can pass all the
6020 data directly through the decoder. Unfortunately it doesn't reset
6021 the context it uses. This means that if EOF is reached an attempt
6022 is made to pass two EOFs through the context and this causes the
6023 resulting error. This can also cause other problems as well. As is
6024 usual with these problems it takes *ages* to find and the fix is
6025 trivial: move one line.
6026 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6028 *) Ugly workaround to get s_client and s_server working under Windows. The
6029 old code wouldn't work because it needed to select() on sockets and the
6030 tty (for keypresses and to see if data could be written). Win32 only
6031 supports select() on sockets so we select() with a 1s timeout on the
6032 sockets and then see if any characters are waiting to be read, if none
6033 are present then we retry, we also assume we can always write data to
6034 the tty. This isn't nice because the code then blocks until we've
6035 received a complete line of data and it is effectively polling the
6036 keyboard at 1s intervals: however it's quite a bit better than not
6037 working at all :-) A dedicated Windows application might handle this
6038 with an event loop for example.
6041 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6042 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6043 will be called when RSA_sign() and RSA_verify() are used. This is useful
6044 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6045 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6046 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6047 This necessitated the support of an extra signature type NID_md5_sha1
6048 for SSL signatures and modifications to the SSL library to use it instead
6049 of calling RSA_public_decrypt() and RSA_private_encrypt().
6052 *) Add new -verify -CAfile and -CApath options to the crl program, these
6053 will lookup a CRL issuers certificate and verify the signature in a
6054 similar way to the verify program. Tidy up the crl program so it
6055 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6056 less strict. It will now permit CRL extensions even if it is not
6057 a V2 CRL: this will allow it to tolerate some broken CRLs.
6060 *) Initialize all non-automatic variables each time one of the openssl
6061 sub-programs is started (this is necessary as they may be started
6062 multiple times from the "OpenSSL>" prompt).
6063 [Lennart Bang, Bodo Moeller]
6065 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6066 removing all other RSA functionality (this is what NO_RSA does). This
6067 is so (for example) those in the US can disable those operations covered
6068 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6072 *) Non-copying interface to BIO pairs.
6073 (still largely untested)
6076 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6077 ASCII string. This was handled independently in various places before.
6080 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6081 UTF8 strings a character at a time.
6084 *) Use client_version from client hello to select the protocol
6085 (s23_srvr.c) and for RSA client key exchange verification
6086 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6089 *) Add various utility functions to handle SPKACs, these were previously
6090 handled by poking round in the structure internals. Added new function
6091 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6092 print, verify and generate SPKACs. Based on an original idea from
6093 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6096 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6099 *) Allow the config file extension section to be overwritten on the
6100 command line. Based on an original idea from Massimiliano Pala
6101 <madwolf@comune.modena.it>. The new option is called -extensions
6102 and can be applied to ca, req and x509. Also -reqexts to override
6103 the request extensions in req and -crlexts to override the crl extensions
6107 *) Add new feature to the SPKAC handling in ca. Now you can include
6108 the same field multiple times by preceding it by "XXXX." for example:
6111 this is the same syntax as used in the req config file.
6114 *) Allow certificate extensions to be added to certificate requests. These
6115 are specified in a 'req_extensions' option of the req section of the
6116 config file. They can be printed out with the -text option to req but
6117 are otherwise ignored at present.
6120 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6121 data read consists of only the final block it would not decrypted because
6122 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6123 A misplaced 'break' also meant the decrypted final block might not be
6124 copied until the next read.
6127 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6128 a few extra parameters to the DH structure: these will be useful if
6129 for example we want the value of 'q' or implement X9.42 DH.
6132 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6133 provides hooks that allow the default DSA functions or functions on a
6134 "per key" basis to be replaced. This allows hardware acceleration and
6135 hardware key storage to be handled without major modification to the
6136 library. Also added low level modexp hooks and CRYPTO_EX structure and
6137 associated functions.
6140 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6141 as "read only": it can't be written to and the buffer it points to will
6142 not be freed. Reading from a read only BIO is much more efficient than
6143 a normal memory BIO. This was added because there are several times when
6144 an area of memory needs to be read from a BIO. The previous method was
6145 to create a memory BIO and write the data to it, this results in two
6146 copies of the data and an O(n^2) reading algorithm. There is a new
6147 function BIO_new_mem_buf() which creates a read only memory BIO from
6148 an area of memory. Also modified the PKCS#7 routines to use read only
6152 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6153 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6154 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6155 but a retry condition occured while trying to read the rest.
6158 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6159 NID_pkcs7_encrypted by default: this was wrong since this should almost
6160 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6161 the encrypted data type: this is a more sensible place to put it and it
6162 allows the PKCS#12 code to be tidied up that duplicated this
6166 *) Changed obj_dat.pl script so it takes its input and output files on
6167 the command line. This should avoid shell escape redirection problems
6171 *) Initial support for certificate extension requests, these are included
6172 in things like Xenroll certificate requests. Included functions to allow
6173 extensions to be obtained and added.
6176 *) -crlf option to s_client and s_server for sending newlines as
6177 CRLF (as required by many protocols).
6180 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6182 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6183 [Ralf S. Engelschall]
6185 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6186 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6188 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6192 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6193 DH parameters/keys (q is lost during that conversion, but the resulting
6194 DH parameters contain its length).
6196 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6197 much faster than DH_generate_parameters (which creates parameters
6198 where p = 2*q + 1), and also the smaller q makes DH computations
6199 much more efficient (160-bit exponentiation instead of 1024-bit
6200 exponentiation); so this provides a convenient way to support DHE
6201 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6202 utter importance to use
6203 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6205 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6206 when such DH parameters are used, because otherwise small subgroup
6207 attacks may become possible!
6210 *) Avoid memory leak in i2d_DHparams.
6213 *) Allow the -k option to be used more than once in the enc program:
6214 this allows the same encrypted message to be read by multiple recipients.
6217 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6218 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6219 it will always use the numerical form of the OID, even if it has a short
6223 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6224 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6225 otherwise bn_mod_exp was called. In the case of hardware keys for example
6226 no private key components need be present and it might store extra data
6227 in the RSA structure, which cannot be accessed from bn_mod_exp.
6228 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6229 private key operations.
6232 *) Added support for SPARC Linux.
6235 *) pem_password_cb function type incompatibly changed from
6236 typedef int pem_password_cb(char *buf, int size, int rwflag);
6238 ....(char *buf, int size, int rwflag, void *userdata);
6239 so that applications can pass data to their callbacks:
6240 The PEM[_ASN1]_{read,write}... functions and macros now take an
6241 additional void * argument, which is just handed through whenever
6242 the password callback is called.
6243 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6245 New function SSL_CTX_set_default_passwd_cb_userdata.
6247 Compatibility note: As many C implementations push function arguments
6248 onto the stack in reverse order, the new library version is likely to
6249 interoperate with programs that have been compiled with the old
6250 pem_password_cb definition (PEM_whatever takes some data that
6251 happens to be on the stack as its last argument, and the callback
6252 just ignores this garbage); but there is no guarantee whatsoever that
6255 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6256 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6257 problems not only on Windows, but also on some Unix platforms.
6258 To avoid problematic command lines, these definitions are now in an
6259 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6260 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6263 *) MIPS III/IV assembler module is reimplemented.
6266 *) More DES library cleanups: remove references to srand/rand and
6267 delete an unused file.
6270 *) Add support for the the free Netwide assembler (NASM) under Win32,
6271 since not many people have MASM (ml) and it can be hard to obtain.
6272 This is currently experimental but it seems to work OK and pass all
6273 the tests. Check out INSTALL.W32 for info.
6276 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6277 without temporary keys kept an extra copy of the server key,
6278 and connections with temporary keys did not free everything in case
6282 *) New function RSA_check_key and new openssl rsa option -check
6283 for verifying the consistency of RSA keys.
6284 [Ulf Moeller, Bodo Moeller]
6286 *) Various changes to make Win32 compile work:
6287 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6288 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6289 comparison" warnings.
6290 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6293 *) Add a debugging option to PKCS#5 v2 key generation function: when
6294 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6295 derived keys are printed to stderr.
6298 *) Copy the flags in ASN1_STRING_dup().
6299 [Roman E. Pavlov <pre@mo.msk.ru>]
6301 *) The x509 application mishandled signing requests containing DSA
6302 keys when the signing key was also DSA and the parameters didn't match.
6304 It was supposed to omit the parameters when they matched the signing key:
6305 the verifying software was then supposed to automatically use the CA's
6306 parameters if they were absent from the end user certificate.
6308 Omitting parameters is no longer recommended. The test was also
6309 the wrong way round! This was probably due to unusual behaviour in
6310 EVP_cmp_parameters() which returns 1 if the parameters match.
6311 This meant that parameters were omitted when they *didn't* match and
6312 the certificate was useless. Certificates signed with 'ca' didn't have
6314 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6316 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6317 The interface is as follows:
6318 Applications can use
6319 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6320 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6321 "off" is now the default.
6322 The library internally uses
6323 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6324 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6325 to disable memory-checking temporarily.
6327 Some inconsistent states that previously were possible (and were
6328 even the default) are now avoided.
6330 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6331 with each memory chunk allocated; this is occasionally more helpful
6332 than just having a counter.
6334 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6336 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6340 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6341 which largely parallels "options", but is for changing API behaviour,
6342 whereas "options" are about protocol behaviour.
6343 Initial "mode" flags are:
6345 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6346 a single record has been written.
6347 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6348 retries use the same buffer location.
6349 (But all of the contents must be
6353 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6356 *) Fix problems with no-hmac etc.
6357 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6359 *) New functions RSA_get_default_method(), RSA_set_method() and
6360 RSA_get_method(). These allows replacement of RSA_METHODs without having
6361 to mess around with the internals of an RSA structure.
6364 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6365 Also really enable memory leak checks in openssl.c and in some
6367 [Chad C. Mulligan, Bodo Moeller]
6369 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6370 up the length of negative integers. This has now been simplified to just
6371 store the length when it is first determined and use it later, rather
6372 than trying to keep track of where data is copied and updating it to
6374 [Steve Henson, reported by Brien Wheeler
6375 <bwheeler@authentica-security.com>]
6377 *) Add a new function PKCS7_signatureVerify. This allows the verification
6378 of a PKCS#7 signature but with the signing certificate passed to the
6379 function itself. This contrasts with PKCS7_dataVerify which assumes the
6380 certificate is present in the PKCS#7 structure. This isn't always the
6381 case: certificates can be omitted from a PKCS#7 structure and be
6382 distributed by "out of band" means (such as a certificate database).
6385 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6386 function prototypes in pem.h, also change util/mkdef.pl to add the
6387 necessary function names.
6390 *) mk1mf.pl (used by Windows builds) did not properly read the
6391 options set by Configure in the top level Makefile, and Configure
6392 was not even able to write more than one option correctly.
6393 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6396 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6397 file to be loaded from a BIO or FILE pointer. The BIO version will
6398 for example allow memory BIOs to contain config info.
6401 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6402 Whoever hopes to achieve shared-library compatibility across versions
6403 must use this, not the compile-time macro.
6404 (Exercise 0.9.4: Which is the minimum library version required by
6406 Note: All this applies only to multi-threaded programs, others don't
6410 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6411 through a BIO pair triggered the default case, i.e.
6412 SSLerr(...,SSL_R_UNKNOWN_STATE).
6415 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6416 can use the SSL library even if none of the specific BIOs is
6420 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6421 for the encoded length.
6422 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6424 *) Add initial documentation of the X509V3 functions.
6427 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6428 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6429 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6430 secure PKCS#8 private key format with a high iteration count.
6433 *) Fix determination of Perl interpreter: A perl or perl5
6434 _directory_ in $PATH was also accepted as the interpreter.
6435 [Ralf S. Engelschall]
6437 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6438 wrong with it but it was very old and did things like calling
6439 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6443 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6444 to use the new extension code.
6447 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6448 with macros. This should make it easier to change their form, add extra
6449 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6453 *) Add to configuration table a new entry that can specify an alternative
6454 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6455 according to Mark Crispin <MRC@Panda.COM>.
6459 *) DES CBC did not update the IV. Weird.
6462 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6463 Changing the behaviour of the former might break existing programs --
6464 where IV updating is needed, des_ncbc_encrypt can be used.
6467 *) When bntest is run from "make test" it drives bc to check its
6468 calculations, as well as internally checking them. If an internal check
6469 fails, it needs to cause bc to give a non-zero result or make test carries
6470 on without noticing the failure. Fixed.
6473 *) DES library cleanups.
6476 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6477 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6478 ciphers. NOTE: although the key derivation function has been verified
6479 against some published test vectors it has not been extensively tested
6480 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6484 *) Instead of "mkdir -p", which is not fully portable, use new
6485 Perl script "util/mkdir-p.pl".
6488 *) Rewrite the way password based encryption (PBE) is handled. It used to
6489 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6490 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6491 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6492 the 'parameter' field of the AlgorithmIdentifier is passed to the
6493 underlying key generation function so it must do its own ASN1 parsing.
6494 This has also changed the EVP_PBE_CipherInit() function which now has a
6495 'parameter' argument instead of literal salt and iteration count values
6496 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6499 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6500 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6501 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6502 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6503 value was just used as a "magic string" and not used directly its
6504 value doesn't matter.
6507 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6511 *) "linux-sparc64" configuration (ultrapenguin).
6512 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6513 "linux-sparc" configuration.
6514 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6516 *) config now generates no-xxx options for missing ciphers.
6519 *) Support the EBCDIC character set (work in progress).
6520 File ebcdic.c not yet included because it has a different license.
6521 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6523 *) Support BS2000/OSD-POSIX.
6524 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6526 *) Make callbacks for key generation use void * instead of char *.
6529 *) Make S/MIME samples compile (not yet tested).
6532 *) Additional typesafe stacks.
6535 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6539 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6541 *) New configuration variant "sco5-gcc".
6543 *) Updated some demos.
6544 [Sean O Riordain, Wade Scholine]
6546 *) Add missing BIO_free at exit of pkcs12 application.
6549 *) Fix memory leak in conf.c.
6552 *) Updates for Win32 to assembler version of MD5.
6555 *) Set #! path to perl in apps/der_chop to where we found it
6556 instead of using a fixed path.
6559 *) SHA library changes for irix64-mips4-cc.
6562 *) Improvements for VMS support.
6566 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6568 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6569 This also avoids the problems with SC4.2 and unpatched SC5.
6570 [Andy Polyakov <appro@fy.chalmers.se>]
6572 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6573 These are required because of the typesafe stack would otherwise break
6574 existing code. If old code used a structure member which used to be STACK
6575 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6576 sk_num or sk_value it would produce an error because the num, data members
6577 are not present in STACK_OF. Now it just produces a warning. sk_set
6578 replaces the old method of assigning a value to sk_value
6579 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6580 that does this will no longer work (and should use sk_set instead) but
6581 this could be regarded as a "questionable" behaviour anyway.
6584 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6585 correctly handle encrypted S/MIME data.
6588 *) Change type of various DES function arguments from des_cblock
6589 (which means, in function argument declarations, pointer to char)
6590 to des_cblock * (meaning pointer to array with 8 char elements),
6591 which allows the compiler to do more typechecking; it was like
6592 that back in SSLeay, but with lots of ugly casts.
6594 Introduce new type const_des_cblock.
6597 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6598 problems: find RecipientInfo structure that matches recipient certificate
6599 and initialise the ASN1 structures properly based on passed cipher.
6602 *) Belatedly make the BN tests actually check the results.
6605 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6606 to and from BNs: it was completely broken. New compilation option
6607 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6608 key elements as negative integers.
6611 *) Reorganize and speed up MD5.
6612 [Andy Polyakov <appro@fy.chalmers.se>]
6615 [Richard Levitte <richard@levitte.org>]
6617 *) New option -out to asn1parse to allow the parsed structure to be
6618 output to a file. This is most useful when combined with the -strparse
6619 option to examine the output of things like OCTET STRINGS.
6622 *) Make SSL library a little more fool-proof by not requiring any longer
6623 that SSL_set_{accept,connect}_state be called before
6624 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6625 in many applications because usually everything *appeared* to work as
6626 intended anyway -- now it really works as intended).
6629 *) Move openssl.cnf out of lib/.
6632 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6633 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6634 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6635 [Ralf S. Engelschall]
6637 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6638 handle PKCS#7 enveloped data properly.
6639 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6641 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6642 copying pointers. The cert_st handling is changed by this in
6643 various ways (and thus what used to be known as ctx->default_cert
6644 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6645 any longer when s->cert does not give us what we need).
6646 ssl_cert_instantiate becomes obsolete by this change.
6647 As soon as we've got the new code right (possibly it already is?),
6648 we have solved a couple of bugs of the earlier code where s->cert
6649 was used as if it could not have been shared with other SSL structures.
6651 Note that using the SSL API in certain dirty ways now will result
6652 in different behaviour than observed with earlier library versions:
6653 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6654 does not influence s as it used to.
6656 In order to clean up things more thoroughly, inside SSL_SESSION
6657 we don't use CERT any longer, but a new structure SESS_CERT
6658 that holds per-session data (if available); currently, this is
6659 the peer's certificate chain and, for clients, the server's certificate
6660 and temporary key. CERT holds only those values that can have
6661 meaningful defaults in an SSL_CTX.
6664 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6665 from the internal representation. Various PKCS#7 fixes: remove some
6666 evil casts and set the enc_dig_alg field properly based on the signing
6670 *) Allow PKCS#12 password to be set from the command line or the
6671 environment. Let 'ca' get its config file name from the environment
6672 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6676 *) Allow certificate policies extension to use an IA5STRING for the
6677 organization field. This is contrary to the PKIX definition but
6678 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6682 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6683 without disallowing inline assembler and the like for non-pedantic builds.
6686 *) Support Borland C++ builder.
6687 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6692 *) SHA-1 cleanups and performance enhancements.
6693 [Andy Polyakov <appro@fy.chalmers.se>]
6695 *) Sparc v8plus assembler for the bignum library.
6696 [Andy Polyakov <appro@fy.chalmers.se>]
6698 *) Accept any -xxx and +xxx compiler options in Configure.
6701 *) Update HPUX configuration.
6704 *) Add missing sk_<type>_unshift() function to safestack.h
6705 [Ralf S. Engelschall]
6707 *) New function SSL_CTX_use_certificate_chain_file that sets the
6708 "extra_cert"s in addition to the certificate. (This makes sense
6709 only for "PEM" format files, as chains as a whole are not
6713 *) Support verify_depth from the SSL API.
6714 x509_vfy.c had what can be considered an off-by-one-error:
6715 Its depth (which was not part of the external interface)
6716 was actually counting the number of certificates in a chain;
6717 now it really counts the depth.
6720 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6721 instead of X509err, which often resulted in confusing error
6722 messages since the error codes are not globally unique
6723 (e.g. an alleged error in ssl3_accept when a certificate
6724 didn't match the private key).
6726 *) New function SSL_CTX_set_session_id_context that allows to set a default
6727 value (so that you don't need SSL_set_session_id_context for each
6728 connection using the SSL_CTX).
6731 *) OAEP decoding bug fix.
6734 *) Support INSTALL_PREFIX for package builders, as proposed by
6738 *) New Configure options "threads" and "no-threads". For systems
6739 where the proper compiler options are known (currently Solaris
6740 and Linux), "threads" is the default.
6743 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6746 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6747 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6748 such as /usr/local/bin.
6751 *) "make linux-shared" to build shared libraries.
6752 [Niels Poppe <niels@netbox.org>]
6754 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6757 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6758 extension adding in x509 utility.
6761 *) Remove NOPROTO sections and error code comments.
6764 *) Partial rewrite of the DEF file generator to now parse the ANSI
6768 *) New Configure options --prefix=DIR and --openssldir=DIR.
6771 *) Complete rewrite of the error code script(s). It is all now handled
6772 by one script at the top level which handles error code gathering,
6773 header rewriting and C source file generation. It should be much better
6774 than the old method: it now uses a modified version of Ulf's parser to
6775 read the ANSI prototypes in all header files (thus the old K&R definitions
6776 aren't needed for error creation any more) and do a better job of
6777 translating function codes into names. The old 'ASN1 error code imbedded
6778 in a comment' is no longer necessary and it doesn't use .err files which
6779 have now been deleted. Also the error code call doesn't have to appear all
6780 on one line (which resulted in some large lines...).
6783 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6786 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6787 0 (which usually indicates a closed connection), but continue reading.
6790 *) Fix some race conditions.
6793 *) Add support for CRL distribution points extension. Add Certificate
6794 Policies and CRL distribution points documentation.
6797 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6800 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6801 8 of keying material. Merlin has also confirmed interop with this fix
6802 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6803 [Merlin Hughes <merlin@baltimore.ie>]
6805 *) Fix lots of warnings.
6806 [Richard Levitte <levitte@stacken.kth.se>]
6808 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6809 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6810 [Richard Levitte <levitte@stacken.kth.se>]
6812 *) Fix problems with sizeof(long) == 8.
6813 [Andy Polyakov <appro@fy.chalmers.se>]
6815 *) Change functions to ANSI C.
6818 *) Fix typos in error codes.
6819 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6821 *) Remove defunct assembler files from Configure.
6824 *) SPARC v8 assembler BIGNUM implementation.
6825 [Andy Polyakov <appro@fy.chalmers.se>]
6827 *) Support for Certificate Policies extension: both print and set.
6828 Various additions to support the r2i method this uses.
6831 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6832 return a const string when you are expecting an allocated buffer.
6835 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6836 types DirectoryString and DisplayText.
6839 *) Add code to allow r2i extensions to access the configuration database,
6840 add an LHASH database driver and add several ctx helper functions.
6843 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6844 fail when they extended the size of a BIGNUM.
6847 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6848 support typesafe stack.
6851 *) Fix typo in SSL_[gs]et_options().
6852 [Nils Frostberg <nils@medcom.se>]
6854 *) Delete various functions and files that belonged to the (now obsolete)
6855 old X509V3 handling code.
6858 *) New Configure option "rsaref".
6861 *) Don't auto-generate pem.h.
6864 *) Introduce type-safe ASN.1 SETs.
6867 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6868 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6870 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6871 that links with OpenSSL (well at least cause lots of warnings), but fear
6872 not: the conversion is trivial, and it eliminates loads of evil casts. A
6873 few STACKed things have been converted already. Feel free to convert more.
6874 In the fullness of time, I'll do away with the STACK type altogether.
6877 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6878 specified in <certfile> by updating the entry in the index.txt file.
6879 This way one no longer has to edit the index.txt file manually for
6880 revoking a certificate. The -revoke option does the gory details now.
6881 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6883 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6884 `-text' option at all and this way the `-noout -text' combination was
6885 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6886 [Ralf S. Engelschall]
6888 *) Make sure a corresponding plain text error message exists for the
6889 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6890 verify callback function determined that a certificate was revoked.
6891 [Ralf S. Engelschall]
6893 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6894 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6895 all available cipers including rc5, which was forgotten until now.
6896 In order to let the testing shell script know which algorithms
6897 are available, a new (up to now undocumented) command
6898 "openssl list-cipher-commands" is used.
6901 *) Bugfix: s_client occasionally would sleep in select() when
6902 it should have checked SSL_pending() first.
6905 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6906 the raw DSA values prior to ASN.1 encoding.
6909 *) Tweaks to Configure
6910 [Niels Poppe <niels@netbox.org>]
6912 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6916 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6919 *) New config option to avoid instructions that are illegal on the 80386.
6920 The default code is faster, but requires at least a 486.
6923 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6924 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6925 same as SSL2_VERSION anyway.
6928 *) New "-showcerts" option for s_client.
6931 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6932 application. Various cleanups and fixes.
6935 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6936 modify error routines to work internally. Add error codes and PBE init
6937 to library startup routines.
6940 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6941 packing functions to asn1 and evp. Changed function names and error
6942 codes along the way.
6945 *) PKCS12 integration: and so it begins... First of several patches to
6946 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6947 objects to objects.h
6950 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6951 and display support for Thawte strong extranet extension.
6954 *) Add LinuxPPC support.
6955 [Jeff Dubrule <igor@pobox.org>]
6957 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6958 bn_div_words in alpha.s.
6959 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6961 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6962 OAEP isn't supported when OpenSSL is built with RSAref.
6963 [Ulf Moeller <ulf@fitug.de>]
6965 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6966 so they no longer are missing under -DNOPROTO.
6967 [Soren S. Jorvang <soren@t.dk>]
6970 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6972 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6973 doesn't work when the session is reused. Coming soon!
6976 *) Fix a security hole, that allows sessions to be reused in the wrong
6977 context thus bypassing client cert protection! All software that uses
6978 client certs and session caches in multiple contexts NEEDS PATCHING to
6979 allow session reuse! A fuller solution is in the works.
6980 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6982 *) Some more source tree cleanups (removed obsolete files
6983 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6984 permission on "config" script to be executable) and a fix for the INSTALL
6986 [Ulf Moeller <ulf@fitug.de>]
6988 *) Remove some legacy and erroneous uses of malloc, free instead of
6990 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6992 *) Make rsa_oaep_test return non-zero on error.
6993 [Ulf Moeller <ulf@fitug.de>]
6995 *) Add support for native Solaris shared libraries. Configure
6996 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6997 if someone would make that last step automatic.
6998 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7000 *) ctx_size was not built with the right compiler during "make links". Fixed.
7003 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7004 except NULL ciphers". This means the default cipher list will no longer
7005 enable NULL ciphers. They need to be specifically enabled e.g. with
7006 the string "DEFAULT:eNULL".
7009 *) Fix to RSA private encryption routines: if p < q then it would
7010 occasionally produce an invalid result. This will only happen with
7011 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7014 *) Be less restrictive and allow also `perl util/perlpath.pl
7015 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7016 because this way one can also use an interpreter named `perl5' (which is
7017 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7018 installed as `perl').
7019 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7021 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7022 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7024 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7025 advapi32.lib to Win32 build and change the pem test comparision
7026 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7027 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7028 and crypto/des/ede_cbcm_enc.c.
7031 *) DES quad checksum was broken on big-endian architectures. Fixed.
7034 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7035 Win32 test batch file so it (might) work again. The Win32 test batch file
7036 is horrible: I feel ill....
7039 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7040 in e_os.h. Audit of header files to check ANSI and non ANSI
7041 sections: 10 functions were absent from non ANSI section and not exported
7042 from Windows DLLs. Fixed up libeay.num for new functions.
7045 *) Make `openssl version' output lines consistent.
7046 [Ralf S. Engelschall]
7048 *) Fix Win32 symbol export lists for BIO functions: Added
7049 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7050 to ms/libeay{16,32}.def.
7051 [Ralf S. Engelschall]
7053 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7054 fine under Unix and passes some trivial tests I've now added. But the
7055 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7056 added to make sure no one expects that this stuff really works in the
7057 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7058 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7060 [Ralf S. Engelschall]
7062 *) Fix the generation of two part addresses in perl.
7063 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7065 *) Add config entry for Linux on MIPS.
7066 [John Tobey <jtobey@channel1.com>]
7068 *) Make links whenever Configure is run, unless we are on Windoze.
7071 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7072 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7076 *) Add a useful kludge to allow package maintainers to specify compiler and
7077 other platforms details on the command line without having to patch the
7078 Configure script everytime: One now can use ``perl Configure
7079 <id>:<details>'', i.e. platform ids are allowed to have details appended
7080 to them (seperated by colons). This is treated as there would be a static
7081 pre-configured entry in Configure's %table under key <id> with value
7082 <details> and ``perl Configure <id>'' is called. So, when you want to
7083 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7084 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7085 now, which overrides the FreeBSD-elf entry on-the-fly.
7086 [Ralf S. Engelschall]
7088 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7091 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7092 on the `perl Configure ...' command line. This way one can compile
7093 OpenSSL libraries with Position Independent Code (PIC) which is needed
7094 for linking it into DSOs.
7095 [Ralf S. Engelschall]
7097 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7101 *) Cleaned up the LICENSE document: The official contact for any license
7102 questions now is the OpenSSL core team under openssl-core@openssl.org.
7103 And add a paragraph about the dual-license situation to make sure people
7104 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7105 to the OpenSSL toolkit.
7106 [Ralf S. Engelschall]
7108 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7109 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7110 Additonally cleaned up the `make links' target: Remove unnecessary
7111 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7112 to speed processing and no longer clutter the display with confusing
7113 stuff. Instead only the actually done links are displayed.
7114 [Ralf S. Engelschall]
7116 *) Permit null encryption ciphersuites, used for authentication only. It used
7117 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7118 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7122 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7123 signed attributes when verifying signatures (this would break them),
7124 the detached data encoding was wrong and public keys obtained using
7125 X509_get_pubkey() weren't freed.
7128 *) Add text documentation for the BUFFER functions. Also added a work around
7129 to a Win95 console bug. This was triggered by the password read stuff: the
7130 last character typed gets carried over to the next fread(). If you were
7131 generating a new cert request using 'req' for example then the last
7132 character of the passphrase would be CR which would then enter the first
7136 *) Added the new `Includes OpenSSL Cryptography Software' button as
7137 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7138 button and can be used by applications based on OpenSSL to show the
7139 relationship to the OpenSSL project.
7140 [Ralf S. Engelschall]
7142 *) Remove confusing variables in function signatures in files
7143 ssl/ssl_lib.c and ssl/ssl.h.
7144 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7146 *) Don't install bss_file.c under PREFIX/include/
7147 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7149 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7150 functions that return function pointers and has support for NT specific
7151 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7152 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7153 unsigned to signed types: this was killing the Win32 compile.
7156 *) Add new certificate file to stack functions,
7157 SSL_add_dir_cert_subjects_to_stack() and
7158 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7159 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7160 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7161 This means that Apache-SSL and similar packages don't have to mess around
7162 to add as many CAs as they want to the preferred list.
7165 *) Experiment with doxygen documentation. Currently only partially applied to
7167 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7168 openssl.doxy as the configuration file.
7171 *) Get rid of remaining C++-style comments which strict C compilers hate.
7172 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7174 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7175 compiled in by default: it has problems with large keys.
7178 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7179 DH private keys and/or callback functions which directly correspond to
7180 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7181 is needed for applications which have to configure certificates on a
7182 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7184 For the RSA certificate situation is makes no difference, but
7185 for the DSA certificate situation this fixes the "no shared cipher"
7186 problem where the OpenSSL cipher selection procedure failed because the
7187 temporary keys were not overtaken from the context and the API provided
7188 no way to reconfigure them.
7189 The new functions now let applications reconfigure the stuff and they
7190 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7191 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7192 non-public-API function ssl_cert_instantiate() is used as a helper
7193 function and also to reduce code redundancy inside ssl_rsa.c.
7194 [Ralf S. Engelschall]
7196 *) Move s_server -dcert and -dkey options out of the undocumented feature
7197 area because they are useful for the DSA situation and should be
7198 recognized by the users.
7199 [Ralf S. Engelschall]
7201 *) Fix the cipher decision scheme for export ciphers: the export bits are
7202 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7203 SSL_EXP_MASK. So, the original variable has to be used instead of the
7204 already masked variable.
7205 [Richard Levitte <levitte@stacken.kth.se>]
7207 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7208 [Richard Levitte <levitte@stacken.kth.se>]
7210 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7211 from `int' to `unsigned int' because it's a length and initialized by
7212 EVP_DigestFinal() which expects an `unsigned int *'.
7213 [Richard Levitte <levitte@stacken.kth.se>]
7215 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7216 script. Instead use the usual Shell->Perl transition trick.
7217 [Ralf S. Engelschall]
7219 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7220 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7221 -noout -modulus' as it's already the case for `openssl rsa -noout
7222 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7223 currently the public key is printed (a decision which was already done by
7224 `openssl dsa -modulus' in the past) which serves a similar purpose.
7225 Additionally the NO_RSA no longer completely removes the whole -modulus
7226 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7228 [Ralf S. Engelschall]
7230 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7231 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7232 [Arne Ansper <arne@ats.cyber.ee>]
7234 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7235 to be added. Now both 'req' and 'ca' can use new objects defined in the
7239 *) Add cool BIO that does syslog (or event log on NT).
7240 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7242 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7243 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7244 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7245 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7248 *) Add preliminary config info for new extension code.
7251 *) Make RSA_NO_PADDING really use no padding.
7252 [Ulf Moeller <ulf@fitug.de>]
7254 *) Generate errors when private/public key check is done.
7257 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7258 for some CRL extensions and new objects added.
7261 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7262 key usage extension and fuller support for authority key id.
7265 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7266 padding method for RSA, which is recommended for new applications in PKCS
7267 #1 v2.0 (RFC 2437, October 1998).
7268 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7269 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7270 against Bleichbacher's attack on RSA.
7271 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7274 *) Updates to the new SSL compression code
7275 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7277 *) Fix so that the version number in the master secret, when passed
7278 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7279 (because the server will not accept higher), that the version number
7280 is 0x03,0x01, not 0x03,0x00
7281 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7283 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7284 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7285 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7288 *) Support for RAW extensions where an arbitrary extension can be
7289 created by including its DER encoding. See apps/openssl.cnf for
7293 *) Make sure latest Perl versions don't interpret some generated C array
7294 code as Perl array code in the crypto/err/err_genc.pl script.
7295 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7297 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7298 not many people have the assembler. Various Win32 compilation fixes and
7299 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7303 *) Modify configure script 'Configure' to automatically create crypto/date.h
7304 file under Win32 and also build pem.h from pem.org. New script
7305 util/mkfiles.pl to create the MINFO file on environments that can't do a
7306 'make files': perl util/mkfiles.pl >MINFO should work.
7309 *) Major rework of DES function declarations, in the pursuit of correctness
7310 and purity. As a result, many evil casts evaporated, and some weirdness,
7311 too. You may find this causes warnings in your code. Zapping your evil
7312 casts will probably fix them. Mostly.
7315 *) Fix for a typo in asn1.h. Bug fix to object creation script
7316 obj_dat.pl. It considered a zero in an object definition to mean
7317 "end of object": none of the objects in objects.h have any zeros
7318 so it wasn't spotted.
7319 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7321 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7322 Masking (CBCM). In the absence of test vectors, the best I have been able
7323 to do is check that the decrypt undoes the encrypt, so far. Send me test
7324 vectors if you have them.
7327 *) Correct calculation of key length for export ciphers (too much space was
7328 allocated for null ciphers). This has not been tested!
7331 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7332 message is now correct (it understands "crypto" and "ssl" on its
7333 command line). There is also now an "update" option. This will update
7334 the util/ssleay.num and util/libeay.num files with any new functions.
7336 perl util/mkdef.pl crypto ssl update
7337 it will update them.
7340 *) Overhauled the Perl interface (perl/*):
7341 - ported BN stuff to OpenSSL's different BN library
7342 - made the perl/ source tree CVS-aware
7343 - renamed the package from SSLeay to OpenSSL (the files still contain
7344 their history because I've copied them in the repository)
7345 - removed obsolete files (the test scripts will be replaced
7346 by better Test::Harness variants in the future)
7347 [Ralf S. Engelschall]
7349 *) First cut for a very conservative source tree cleanup:
7350 1. merge various obsolete readme texts into doc/ssleay.txt
7351 where we collect the old documents and readme texts.
7352 2. remove the first part of files where I'm already sure that we no
7353 longer need them because of three reasons: either they are just temporary
7354 files which were left by Eric or they are preserved original files where
7355 I've verified that the diff is also available in the CVS via "cvs diff
7356 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7357 the crypto/md/ stuff).
7358 [Ralf S. Engelschall]
7360 *) More extension code. Incomplete support for subject and issuer alt
7361 name, issuer and authority key id. Change the i2v function parameters
7362 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7363 what that's for :-) Fix to ASN1 macro which messed up
7364 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7367 *) Preliminary support for ENUMERATED type. This is largely copied from the
7371 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7372 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7374 *) Make sure `make rehash' target really finds the `openssl' program.
7375 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7377 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7378 like to hear about it if this slows down other processors.
7381 *) Add CygWin32 platform information to Configure script.
7382 [Alan Batie <batie@aahz.jf.intel.com>]
7384 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7385 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7387 *) New program nseq to manipulate netscape certificate sequences
7390 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7394 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7395 but the BN code had some problems that would cause failures when
7396 doing certificate verification and some other functions.
7397 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7399 *) Add ASN1 and PEM code to support netscape certificate sequences.
7402 *) Add ASN1 and PEM code to support netscape certificate sequences.
7405 *) Add several PKIX and private extended key usage OIDs.
7408 *) Modify the 'ca' program to handle the new extension code. Modify
7409 openssl.cnf for new extension format, add comments.
7412 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7413 and add a sample to openssl.cnf so req -x509 now adds appropriate
7417 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7418 error code, add initial support to X509_print() and x509 application.
7421 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7422 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7423 stuff is currently isolated and isn't even compiled yet.
7426 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7427 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7428 Removed the versions check from X509 routines when loading extensions:
7429 this allows certain broken certificates that don't set the version
7430 properly to be processed.
7433 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7434 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7435 can still be regenerated with "make depend".
7438 *) Spelling mistake in C version of CAST-128.
7439 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7441 *) Changes to the error generation code. The perl script err-code.pl
7442 now reads in the old error codes and retains the old numbers, only
7443 adding new ones if necessary. It also only changes the .err files if new
7444 codes are added. The makefiles have been modified to only insert errors
7445 when needed (to avoid needlessly modifying header files). This is done
7446 by only inserting errors if the .err file is newer than the auto generated
7447 C file. To rebuild all the error codes from scratch (the old behaviour)
7448 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7449 or delete all the .err files.
7452 *) CAST-128 was incorrectly implemented for short keys. The C version has
7453 been fixed, but is untested. The assembler versions are also fixed, but
7454 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7455 to regenerate it if needed.
7456 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7457 Hagino <itojun@kame.net>]
7459 *) File was opened incorrectly in randfile.c.
7460 [Ulf Möller <ulf@fitug.de>]
7462 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7463 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7464 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7465 al: it's just almost always a UTCTime. Note this patch adds new error
7466 codes so do a "make errors" if there are problems.
7469 *) Correct Linux 1 recognition in config.
7470 [Ulf Möller <ulf@fitug.de>]
7472 *) Remove pointless MD5 hash when using DSA keys in ca.
7473 [Anonymous <nobody@replay.com>]
7475 *) Generate an error if given an empty string as a cert directory. Also
7476 generate an error if handed NULL (previously returned 0 to indicate an
7477 error, but didn't set one).
7478 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7480 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7483 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7484 parameters. This was causing a warning which killed off the Win32 compile.
7487 *) Remove C++ style comments from crypto/bn/bn_local.h.
7488 [Neil Costigan <neil.costigan@celocom.com>]
7490 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7491 based on a text string, looking up short and long names and finally
7492 "dot" format. The "dot" format stuff didn't work. Added new function
7493 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7494 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7495 OID is not part of the table.
7498 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7499 X509_LOOKUP_by_alias().
7502 *) Sort openssl functions by name.
7505 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7506 encryption from sample DSA keys (in case anyone is interested the password
7510 *) Make _all_ *_free functions accept a NULL pointer.
7511 [Frans Heymans <fheymans@isaserver.be>]
7513 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7515 [Anonymous <nobody@replay.com>]
7517 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7518 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7520 *) Don't blow it for numeric -newkey arguments to apps/req.
7521 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7523 *) Temp key "for export" tests were wrong in s3_srvr.c.
7524 [Anonymous <nobody@replay.com>]
7526 *) Add prototype for temp key callback functions
7527 SSL_CTX_set_tmp_{rsa,dh}_callback().
7530 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7531 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7534 *) X509_name_add_entry() freed the wrong thing after an error.
7535 [Arne Ansper <arne@ats.cyber.ee>]
7537 *) rsa_eay.c would attempt to free a NULL context.
7538 [Arne Ansper <arne@ats.cyber.ee>]
7540 *) BIO_s_socket() had a broken should_retry() on Windoze.
7541 [Arne Ansper <arne@ats.cyber.ee>]
7543 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7544 [Arne Ansper <arne@ats.cyber.ee>]
7546 *) Make sure the already existing X509_STORE->depth variable is initialized
7547 in X509_STORE_new(), but document the fact that this variable is still
7548 unused in the certificate verification process.
7549 [Ralf S. Engelschall]
7551 *) Fix the various library and apps files to free up pkeys obtained from
7552 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7555 *) Fix reference counting in X509_PUBKEY_get(). This makes
7556 demos/maurice/example2.c work, amongst others, probably.
7557 [Steve Henson and Ben Laurie]
7559 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7560 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7561 are no longer created. This way we have a single and consistent command
7562 line interface `openssl <command>', similar to `cvs <command>'.
7563 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7565 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7566 BIT STRING wrapper always have zero unused bits.
7569 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7572 *) Make the top-level INSTALL documentation easier to understand.
7575 *) Makefiles updated to exit if an error occurs in a sub-directory
7576 make (including if user presses ^C) [Paul Sutton]
7578 *) Make Montgomery context stuff explicit in RSA data structure.
7581 *) Fix build order of pem and err to allow for generated pem.h.
7584 *) Fix renumbering bug in X509_NAME_delete_entry().
7587 *) Enhanced the err-ins.pl script so it makes the error library number
7588 global and can add a library name. This is needed for external ASN1 and
7589 other error libraries.
7592 *) Fixed sk_insert which never worked properly.
7595 *) Fix ASN1 macros so they can handle indefinite length construted
7596 EXPLICIT tags. Some non standard certificates use these: they can now
7600 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7601 into a single doc/ssleay.txt bundle. This way the information is still
7602 preserved but no longer messes up this directory. Now it's new room for
7603 the new set of documenation files.
7604 [Ralf S. Engelschall]
7606 *) SETs were incorrectly DER encoded. This was a major pain, because they
7607 shared code with SEQUENCEs, which aren't coded the same. This means that
7608 almost everything to do with SETs or SEQUENCEs has either changed name or
7609 number of arguments.
7610 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7612 *) Fix test data to work with the above.
7615 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7616 was already fixed by Eric for 0.9.1 it seems.
7617 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7619 *) Autodetect FreeBSD3.
7622 *) Fix various bugs in Configure. This affects the following platforms:
7626 unixware-2.0-pentium
7630 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7631 before they are needed.
7634 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7638 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7640 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7641 changed SSLeay to OpenSSL in version strings.
7642 [Ralf S. Engelschall]
7644 *) Some fixups to the top-level documents.
7647 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7648 because the symlink to include/ was missing.
7649 [Ralf S. Engelschall]
7651 *) Incorporated the popular no-RSA/DSA-only patches
7652 which allow to compile a RSA-free SSLeay.
7653 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7655 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7656 when "ssleay" is still not found.
7657 [Ralf S. Engelschall]
7659 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7660 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7662 *) Updated the README file.
7663 [Ralf S. Engelschall]
7665 *) Added various .cvsignore files in the CVS repository subdirs
7666 to make a "cvs update" really silent.
7667 [Ralf S. Engelschall]
7669 *) Recompiled the error-definition header files and added
7670 missing symbols to the Win32 linker tables.
7671 [Ralf S. Engelschall]
7673 *) Cleaned up the top-level documents;
7674 o new files: CHANGES and LICENSE
7675 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7676 o merged COPYRIGHT into LICENSE
7677 o removed obsolete TODO file
7678 o renamed MICROSOFT to INSTALL.W32
7679 [Ralf S. Engelschall]
7681 *) Removed dummy files from the 0.9.1b source tree:
7682 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7683 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7684 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7685 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7686 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7687 [Ralf S. Engelschall]
7689 *) Added various platform portability fixes.
7692 *) The Genesis of the OpenSSL rpject:
7693 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7694 Young and Tim J. Hudson created while they were working for C2Net until
7696 [The OpenSSL Project]
7699 Changes between 0.9.0b and 0.9.1b [not released]
7701 *) Updated a few CA certificates under certs/
7704 *) Changed some BIGNUM api stuff.
7707 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7708 DGUX x86, Linux Alpha, etc.
7711 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7712 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7716 *) Add -strparse option to asn1pars program which parses nested
7718 [Dr Stephen Henson <shenson@bigfoot.com>]
7720 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7723 *) DSA fix for "ca" program.
7726 *) Added "-genkey" option to "dsaparam" program.
7729 *) Added RIPE MD160 (rmd160) message digest.
7732 *) Added -a (all) option to "ssleay version" command.
7735 *) Added PLATFORM define which is the id given to Configure.
7738 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7741 *) Extended the ASN.1 parser routines.
7744 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7747 *) Added a BN_CTX to the BN library.
7750 *) Fixed the weak key values in DES library
7753 *) Changed API in EVP library for cipher aliases.
7756 *) Added support for RC2/64bit cipher.
7759 *) Converted the lhash library to the crypto/mem.c functions.
7762 *) Added more recognized ASN.1 object ids.
7765 *) Added more RSA padding checks for SSL/TLS.
7768 *) Added BIO proxy/filter functionality.
7771 *) Added extra_certs to SSL_CTX which can be used
7772 send extra CA certificates to the client in the CA cert chain sending
7773 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7776 *) Now Fortezza is denied in the authentication phase because
7777 this is key exchange mechanism is not supported by SSLeay at all.
7780 *) Additional PKCS1 checks.
7783 *) Support the string "TLSv1" for all TLS v1 ciphers.
7786 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7787 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7790 *) Fixed a few memory leaks.
7793 *) Fixed various code and comment typos.
7796 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7797 bytes sent in the client random.
7798 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob