5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) Add support for TLS extensions, specifically for the HostName extension.
8 The SSL_SESSION, SSL_CTX, and SSL data structures now have new members
11 openssl s_client has a new '-servername' option.
13 openssl s_server has new options '-servername', '-cert2', and '-key2';
14 this allows testing the HostName extension for a specific single
15 host name ('-cert' and '-key' remain fallbacks for handshakes without
16 HostName negotiation).
20 *) Whirlpool hash implementation is added.
23 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
24 bn(64,32). Because of instruction set limitations it doesn't have
25 any negative impact on performance. This was done mostly in order
26 to make it possible to share assembler modules, such as bn_mul_mont
27 implementations, between 32- and 64-bit builds without hassle.
30 *) Disable rogue ciphersuites:
32 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
33 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
34 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
36 The latter two were purportedly from
37 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
40 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
41 remain enabled for now, but are just as unofficial, and the ID
42 has long expired; these will probably disappear soon.
45 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
46 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
50 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
51 dedicated Montgomery multiplication procedure, is introduced.
52 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
53 "64-bit" performance on certain 32-bit targets.
56 *) New option SSL_OP_NO_COMP to disable use of compression selectively
57 in SSL structures. New SSL ctrl to set maximum send fragment size.
58 Save memory by seeting the I/O buffer sizes dynamically instead of
59 using the maximum available value.
62 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
63 in addition to the text details.
66 *) Very, very preliminary EXPERIMENTAL support for printing of general
67 ASN1 structures. This currently produces rather ugly output and doesn't
68 handle several customised structures at all.
71 *) Integrated support for PVK file format and some related formats such
72 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
73 these in the 'rsa' and 'dsa' utilities.
76 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
79 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
80 place for the (very old) "NETSCAPE" format certificates which are now
81 handled using new ASN1 code equivalents.
84 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
85 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
86 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
89 *) Modify CRL distribution points extension code to print out previously
90 unsupported fields. Enhance extension setting code to allow setting of
94 *) Add print and set support for Issuing Distribution Point CRL extension.
97 Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
99 *) Update support for ECC-based TLS ciphersuites according to
100 draft-ietf-tls-ecc-12.txt with proposed changes.
103 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
104 opaque EVP_CIPHER_CTX handling.
107 *) Fixes and enhancements to zlib compression code. We now only use
108 "zlib1.dll" and use the default __cdecl calling convention on Win32
109 to conform with the standards mentioned here:
110 http://www.zlib.net/DLL_FAQ.txt
111 Static zlib linking now works on Windows and the new --with-zlib-include
112 --with-zlib-lib options to Configure can be used to supply the location
113 of the headers and library. Gracefully handle case where zlib library
117 *) Several fixes and enhancements to the OID generation code. The old code
118 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
119 handle numbers larger than ULONG_MAX, truncated printing and had a
120 non standard OBJ_obj2txt() behaviour.
123 *) Add support for building of engines under engine/ as shared libraries
124 under VC++ build system.
127 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
128 Hopefully, we will not see any false combination of paths any more.
131 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
133 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
134 (part of SSL_OP_ALL). This option used to disable the
135 countermeasure against man-in-the-middle protocol-version
136 rollback in the SSL 2.0 server implementation, which is a bad
137 idea. (CVE-2005-2969)
139 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
140 for Information Security, National Institute of Advanced Industrial
141 Science and Technology [AIST], Japan)]
143 *) Add two function to clear and return the verify parameter flags.
146 *) Keep cipherlists sorted in the source instead of sorting them at
147 runtime, thus removing the need for a lock.
150 *) Avoid some small subgroup attacks in Diffie-Hellman.
151 [Nick Mathewson and Ben Laurie]
153 *) Add functions for well-known primes.
156 *) Extended Windows CE support.
157 [Satoshi Nakamura and Andy Polyakov]
159 *) Initialize SSL_METHOD structures at compile time instead of during
160 runtime, thus removing the need for a lock.
163 *) Make PKCS7_decrypt() work even if no certificate is supplied by
164 attempting to decrypt each encrypted key in turn. Add support to
168 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
170 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
173 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
174 key into the same file any more.
177 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
180 *) Add -utf8 command line and config file option to 'ca'.
181 [Stefan <stf@udoma.org]
183 *) Removed the macro des_crypt(), as it seems to conflict with some
184 libraries. Use DES_crypt().
187 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
188 involves renaming the source and generated shared-libs for
189 both. The engines will accept the corrected or legacy ids
190 ('ncipher' and '4758_cca' respectively) when binding. NB,
191 this only applies when building 'shared'.
192 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
194 *) Add attribute functions to EVP_PKEY structure. Modify
195 PKCS12_create() to recognize a CSP name attribute and
196 use it. Make -CSP option work again in pkcs12 utility.
199 *) Add new functionality to the bn blinding code:
200 - automatic re-creation of the BN_BLINDING parameters after
201 a fixed number of uses (currently 32)
202 - add new function for parameter creation
203 - introduce flags to control the update behaviour of the
204 BN_BLINDING parameters
205 - hide BN_BLINDING structure
206 Add a second BN_BLINDING slot to the RSA structure to improve
207 performance when a single RSA object is shared among several
211 *) Add support for DTLS.
212 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
214 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
215 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
218 *) Remove buggy and incompletet DH cert support from
219 ssl/ssl_rsa.c and ssl/s3_both.c
222 *) Use SHA-1 instead of MD5 as the default digest algorithm for
223 the apps/openssl applications.
226 *) Compile clean with "-Wall -Wmissing-prototypes
227 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
228 DEBUG_SAFESTACK must also be set.
231 *) Change ./Configure so that certain algorithms can be disabled by default.
232 The new counterpiece to "no-xxx" is "enable-xxx".
234 The patented RC5 and MDC2 algorithms will now be disabled unless
235 "enable-rc5" and "enable-mdc2", respectively, are specified.
237 (IDEA remains enabled despite being patented. This is because IDEA
238 is frequently required for interoperability, and there is no license
239 fee for non-commercial use. As before, "no-idea" can be used to
240 avoid this algorithm.)
244 *) Add processing of proxy certificates (see RFC 3820). This work was
245 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
246 EGEE (Enabling Grids for E-science in Europe).
249 *) RC4 performance overhaul on modern architectures/implementations, such
250 as Intel P4, IA-64 and AMD64.
253 *) New utility extract-section.pl. This can be used specify an alternative
254 section number in a pod file instead of having to treat each file as
255 a separate case in Makefile. This can be done by adding two lines to the
258 =for comment openssl_section:XXX
260 The blank line is mandatory.
264 *) New arguments -certform, -keyform and -pass for s_client and s_server
265 to allow alternative format key and certificate files and passphrase
269 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
270 update associated structures and add various utility functions.
272 Add new policy related verify parameters, include policy checking in
273 standard verify code. Enhance 'smime' application with extra parameters
274 to support policy checking and print out.
277 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
278 Nehemiah processors. These extensions support AES encryption in hardware
279 as well as RNG (though RNG support is currently disabled).
280 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
282 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
285 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
286 [Andy Polyakov and a number of other people]
288 *) Improved PowerPC platform support. Most notably BIGNUM assembler
289 implementation contributed by IBM.
290 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
292 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
293 exponent rather than 'unsigned long'. There is a corresponding change to
294 the new 'rsa_keygen' element of the RSA_METHOD structure.
295 [Jelte Jansen, Geoff Thorpe]
297 *) Functionality for creating the initial serial number file is now
298 moved from CA.pl to the 'ca' utility with a new option -create_serial.
300 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
301 number file to 1, which is bound to cause problems. To avoid
302 the problems while respecting compatibility between different 0.9.7
303 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
304 CA.pl for serial number initialization. With the new release 0.9.8,
305 we can fix the problem directly in the 'ca' utility.)
308 *) Reduced header interdepencies by declaring more opaque objects in
309 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
310 give fewer recursive includes, which could break lazy source code - so
311 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
312 developers should define this symbol when building and using openssl to
313 ensure they track the recommended behaviour, interfaces, [etc], but
314 backwards-compatible behaviour prevails when this isn't defined.
317 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
320 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
321 This will generate a random key of the appropriate length based on the
322 cipher context. The EVP_CIPHER can provide its own random key generation
323 routine to support keys of a specific form. This is used in the des and
324 3des routines to generate a key of the correct parity. Update S/MIME
325 code to use new functions and hence generate correct parity DES keys.
326 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
327 valid (weak or incorrect parity).
330 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
331 as looking them up. This is useful when the verified structure may contain
332 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
333 present unless the new PKCS7_NO_CRL flag is asserted.
336 *) Extend ASN1 oid configuration module. It now additionally accepts the
339 shortName = some long name, 1.2.3.4
342 *) Reimplemented the BN_CTX implementation. There is now no more static
343 limitation on the number of variables it can handle nor the depth of the
344 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
345 information can now expand as required, and rather than having a single
346 static array of bignums, BN_CTX now uses a linked-list of such arrays
347 allowing it to expand on demand whilst maintaining the usefulness of
351 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
352 to allow all RSA operations to function using a single BN_CTX.
355 *) Preliminary support for certificate policy evaluation and checking. This
356 is initially intended to pass the tests outlined in "Conformance Testing
357 of Relying Party Client Certificate Path Processing Logic" v1.07.
360 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
361 remained unused and not that useful. A variety of other little bignum
362 tweaks and fixes have also been made continuing on from the audit (see
366 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
367 associated ASN1, EVP and SSL functions and old ASN1 macros.
370 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
371 and this should never fail. So the return value from the use of
372 BN_set_word() (which can fail due to needless expansion) is now deprecated;
373 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
376 *) BN_CTX_get() should return zero-valued bignums, providing the same
377 initialised value as BN_new().
378 [Geoff Thorpe, suggested by Ulf Möller]
380 *) Support for inhibitAnyPolicy certificate extension.
383 *) An audit of the BIGNUM code is underway, for which debugging code is
384 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
385 is considered valid when processing BIGNUMs, and causes execution to
386 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
387 further steps are taken to deliberately pollute unused data in BIGNUM
388 structures to try and expose faulty code further on. For now, openssl will
389 (in its default mode of operation) continue to tolerate the inconsistent
390 forms that it has tolerated in the past, but authors and packagers should
391 consider trying openssl and their own applications when compiled with
392 these debugging symbols defined. It will help highlight potential bugs in
393 their own code, and will improve the test coverage for OpenSSL itself. At
394 some point, these tighter rules will become openssl's default to improve
395 maintainability, though the assert()s and other overheads will remain only
396 in debugging configurations. See bn.h for more details.
397 [Geoff Thorpe, Nils Larsch, Ulf Möller]
399 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
400 that can only be obtained through BN_CTX_new() (which implicitly
401 initialises it). The presence of this function only made it possible
402 to overwrite an existing structure (and cause memory leaks).
405 *) Because of the callback-based approach for implementing LHASH as a
406 template type, lh_insert() adds opaque objects to hash-tables and
407 lh_doall() or lh_doall_arg() are typically used with a destructor callback
408 to clean up those corresponding objects before destroying the hash table
409 (and losing the object pointers). So some over-zealous constifications in
410 LHASH have been relaxed so that lh_insert() does not take (nor store) the
411 objects as "const" and the lh_doall[_arg] callback wrappers are not
412 prototyped to have "const" restrictions on the object pointers they are
413 given (and so aren't required to cast them away any more).
416 *) The tmdiff.h API was so ugly and minimal that our own timing utility
417 (speed) prefers to use its own implementation. The two implementations
418 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
419 its object type properly exposed (MS_TM) instead of casting to/from "char
420 *". This may still change yet if someone realises MS_TM and "ms_time_***"
421 aren't necessarily the greatest nomenclatures - but this is what was used
422 internally to the implementation so I've used that for now.
425 *) Ensure that deprecated functions do not get compiled when
426 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
427 the self-tests were still using deprecated key-generation functions so
428 these have been updated also.
431 *) Reorganise PKCS#7 code to separate the digest location functionality
432 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
433 New function PKCS7_set_digest() to set the digest type for PKCS#7
434 digestedData type. Add additional code to correctly generate the
435 digestedData type and add support for this type in PKCS7 initialization
439 *) New function PKCS7_set0_type_other() this initializes a PKCS7
440 structure of type "other".
443 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
444 sure the loop does correctly stop and breaking ("division by zero")
445 modulus operations are not performed. The (pre-generated) prime
446 table crypto/bn/bn_prime.h was already correct, but it could not be
447 re-generated on some platforms because of the "division by zero"
448 situation in the script.
449 [Ralf S. Engelschall]
451 *) Update support for ECC-based TLS ciphersuites according to
452 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
453 SHA-1 now is only used for "small" curves (where the
454 representation of a field element takes up to 24 bytes); for
455 larger curves, the field element resulting from ECDH is directly
456 used as premaster secret.
457 [Douglas Stebila (Sun Microsystems Laboratories)]
459 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
460 curve secp160r1 to the tests.
461 [Douglas Stebila (Sun Microsystems Laboratories)]
463 *) Add the possibility to load symbols globally with DSO.
464 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
466 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
467 control of the error stack.
470 *) Add support for STORE in ENGINE.
473 *) Add the STORE type. The intention is to provide a common interface
474 to certificate and key stores, be they simple file-based stores, or
475 HSM-type store, or LDAP stores, or...
476 NOTE: The code is currently UNTESTED and isn't really used anywhere.
479 *) Add a generic structure called OPENSSL_ITEM. This can be used to
480 pass a list of arguments to any function as well as provide a way
481 for a function to pass data back to the caller.
484 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
485 works like BUF_strdup() but can be used to duplicate a portion of
486 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
490 *) Add the function sk_find_ex() which works like sk_find(), but will
491 return an index to an element even if an exact match couldn't be
492 found. The index is guaranteed to point at the element where the
493 searched-for key would be inserted to preserve sorting order.
496 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
497 takes an extra flags argument for optional functionality. Currently,
498 the following flags are defined:
500 OBJ_BSEARCH_VALUE_ON_NOMATCH
501 This one gets OBJ_bsearch_ex() to return a pointer to the first
502 element where the comparing function returns a negative or zero
505 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
506 This one gets OBJ_bsearch_ex() to return a pointer to the first
507 element where the comparing function returns zero. This is useful
508 if there are more than one element where the comparing function
512 *) Make it possible to create self-signed certificates with 'openssl ca'
513 in such a way that the self-signed certificate becomes part of the
514 CA database and uses the same mechanisms for serial number generation
515 as all other certificate signing. The new flag '-selfsign' enables
516 this functionality. Adapt CA.sh and CA.pl.in.
519 *) Add functionality to check the public key of a certificate request
520 against a given private. This is useful to check that a certificate
521 request can be signed by that key (self-signing).
524 *) Make it possible to have multiple active certificates with the same
525 subject in the CA index file. This is done only if the keyword
526 'unique_subject' is set to 'no' in the main CA section (default
527 if 'CA_default') of the configuration file. The value is saved
528 with the database itself in a separate index attribute file,
529 named like the index file with '.attr' appended to the name.
532 *) Generate muti valued AVAs using '+' notation in config files for
536 *) Support for nameConstraints certificate extension.
539 *) Support for policyConstraints certificate extension.
542 *) Support for policyMappings certificate extension.
545 *) Make sure the default DSA_METHOD implementation only uses its
546 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
547 and change its own handlers to be NULL so as to remove unnecessary
548 indirection. This lets alternative implementations fallback to the
549 default implementation more easily.
552 *) Support for directoryName in GeneralName related extensions
556 *) Make it possible to link applications using Makefile.shared.
557 Make that possible even when linking against static libraries!
560 *) Support for single pass processing for S/MIME signing. This now
561 means that S/MIME signing can be done from a pipe, in addition
562 cleartext signing (multipart/signed type) is effectively streaming
563 and the signed data does not need to be all held in memory.
565 This is done with a new flag PKCS7_STREAM. When this flag is set
566 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
567 is done after the data is output (and digests calculated) in
571 *) Add full support for -rpath/-R, both in shared libraries and
572 applications, at least on the platforms where it's known how
576 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
577 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
578 will now compute a table of multiples of the generator that
579 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
580 faster (notably in the case of a single point multiplication,
582 [Nils Larsch, Bodo Moeller]
584 *) IPv6 support for certificate extensions. The various extensions
585 which use the IP:a.b.c.d can now take IPv6 addresses using the
586 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
590 *) Added an ENGINE that implements RSA by performing private key
591 exponentiations with the GMP library. The conversions to and from
592 GMP's mpz_t format aren't optimised nor are any montgomery forms
593 cached, and on x86 it appears OpenSSL's own performance has caught up.
594 However there are likely to be other architectures where GMP could
595 provide a boost. This ENGINE is not built in by default, but it can be
596 specified at Configure time and should be accompanied by the necessary
597 linker additions, eg;
598 ./config -DOPENSSL_USE_GMP -lgmp
601 *) "openssl engine" will not display ENGINE/DSO load failure errors when
602 testing availability of engines with "-t" - the old behaviour is
603 produced by increasing the feature's verbosity with "-tt".
606 *) ECDSA routines: under certain error conditions uninitialized BN objects
607 could be freed. Solution: make sure initialization is performed early
608 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
612 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
613 and DH_METHOD (eg. by ENGINE implementations) to override the normal
614 software implementations. For DSA and DH, parameter generation can
615 also be overriden by providing the appropriate method callbacks.
618 *) Change the "progress" mechanism used in key-generation and
619 primality testing to functions that take a new BN_GENCB pointer in
620 place of callback/argument pairs. The new API functions have "_ex"
621 postfixes and the older functions are reimplemented as wrappers for
622 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
623 declarations of the old functions to help (graceful) attempts to
624 migrate to the new functions. Also, the new key-generation API
625 functions operate on a caller-supplied key-structure and return
626 success/failure rather than returning a key or NULL - this is to
627 help make "keygen" another member function of RSA_METHOD etc.
629 Example for using the new callback interface:
631 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
635 BN_GENCB_set(&my_cb, my_callback, my_arg);
637 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
638 /* For the meaning of a, b in calls to my_callback(), see the
639 * documentation of the function that calls the callback.
640 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
641 * my_callback should return 1 if it wants BN_is_prime_ex()
642 * to continue, or 0 to stop.
647 *) Change the ZLIB compression method to be stateful, and make it
648 available to TLS with the number defined in
649 draft-ietf-tls-compression-04.txt.
652 *) Add the ASN.1 structures and functions for CertificatePair, which
653 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
655 CertificatePair ::= SEQUENCE {
656 forward [0] Certificate OPTIONAL,
657 reverse [1] Certificate OPTIONAL,
658 -- at least one of the pair shall be present -- }
660 Also implement the PEM functions to read and write certificate
661 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
663 This needed to be defined, mostly for the sake of the LDAP
664 attribute crossCertificatePair, but may prove useful elsewhere as
668 *) Make it possible to inhibit symlinking of shared libraries in
669 Makefile.shared, for Cygwin's sake.
672 *) Extend the BIGNUM API by creating a function
673 void BN_set_negative(BIGNUM *a, int neg);
674 and a macro that behave like
675 int BN_is_negative(const BIGNUM *a);
677 to avoid the need to access 'a->neg' directly in applications.
680 *) Implement fast modular reduction for pseudo-Mersenne primes
681 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
682 EC_GROUP_new_curve_GFp() will now automatically use this
684 [Nils Larsch <nla@trustcenter.de>]
686 *) Add new lock type (CRYPTO_LOCK_BN).
689 *) Change the ENGINE framework to automatically load engines
690 dynamically from specific directories unless they could be
691 found to already be built in or loaded. Move all the
692 current engines except for the cryptodev one to a new
694 The engines in engines/ are built as shared libraries if
695 the "shared" options was given to ./Configure or ./config.
696 Otherwise, they are inserted in libcrypto.a.
697 /usr/local/ssl/engines is the default directory for dynamic
698 engines, but that can be overriden at configure time through
699 the usual use of --prefix and/or --openssldir, and at run
700 time with the environment variable OPENSSL_ENGINES.
701 [Geoff Thorpe and Richard Levitte]
703 *) Add Makefile.shared, a helper makefile to build shared
704 libraries. Addapt Makefile.org.
707 *) Add version info to Win32 DLLs.
708 [Peter 'Luna' Runestig" <peter@runestig.com>]
710 *) Add new 'medium level' PKCS#12 API. Certificates and keys
711 can be added using this API to created arbitrary PKCS#12
712 files while avoiding the low level API.
714 New options to PKCS12_create(), key or cert can be NULL and
715 will then be omitted from the output file. The encryption
716 algorithm NIDs can be set to -1 for no encryption, the mac
717 iteration count can be set to 0 to omit the mac.
719 Enhance pkcs12 utility by making the -nokeys and -nocerts
720 options work when creating a PKCS#12 file. New option -nomac
721 to omit the mac, NONE can be set for an encryption algorithm.
722 New code is modified to use the enhanced PKCS12_create()
723 instead of the low level API.
726 *) Extend ASN1 encoder to support indefinite length constructed
727 encoding. This can output sequences tags and octet strings in
728 this form. Modify pk7_asn1.c to support indefinite length
729 encoding. This is experimental and needs additional code to
730 be useful, such as an ASN1 bio and some enhanced streaming
733 Extend template encode functionality so that tagging is passed
734 down to the template encoder.
737 *) Let 'openssl req' fail if an argument to '-newkey' is not
738 recognized instead of using RSA as a default.
741 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
742 As these are not official, they are not included in "ALL";
743 the "ECCdraft" ciphersuite group alias can be used to select them.
744 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
746 *) Add ECDH engine support.
747 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
749 *) Add ECDH in new directory crypto/ecdh/.
750 [Douglas Stebila (Sun Microsystems Laboratories)]
752 *) Let BN_rand_range() abort with an error after 100 iterations
753 without success (which indicates a broken PRNG).
756 *) Change BN_mod_sqrt() so that it verifies that the input value
757 is really the square of the return value. (Previously,
758 BN_mod_sqrt would show GIGO behaviour.)
761 *) Add named elliptic curves over binary fields from X9.62, SECG,
762 and WAP/WTLS; add OIDs that were still missing.
764 [Sheueling Chang Shantz and Douglas Stebila
765 (Sun Microsystems Laboratories)]
767 *) Extend the EC library for elliptic curves over binary fields
768 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
771 EC_GF2m_simple_method
775 EC_GROUP_new_curve_GF2m
776 EC_GROUP_set_curve_GF2m
777 EC_GROUP_get_curve_GF2m
778 EC_POINT_set_affine_coordinates_GF2m
779 EC_POINT_get_affine_coordinates_GF2m
780 EC_POINT_set_compressed_coordinates_GF2m
782 Point compression for binary fields is disabled by default for
783 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
786 As binary polynomials are represented as BIGNUMs, various members
787 of the EC_GROUP and EC_POINT data structures can be shared
788 between the implementations for prime fields and binary fields;
789 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
790 are essentially identical to their ..._GFp counterparts.
791 (For simplicity, the '..._GFp' prefix has been dropped from
792 various internal method names.)
794 An internal 'field_div' method (similar to 'field_mul' and
795 'field_sqr') has been added; this is used only for binary fields.
797 [Sheueling Chang Shantz and Douglas Stebila
798 (Sun Microsystems Laboratories)]
800 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
801 through methods ('mul', 'precompute_mult').
803 The generic implementations (now internally called 'ec_wNAF_mul'
804 and 'ec_wNAF_precomputed_mult') remain the default if these
805 methods are undefined.
807 [Sheueling Chang Shantz and Douglas Stebila
808 (Sun Microsystems Laboratories)]
810 *) New function EC_GROUP_get_degree, which is defined through
811 EC_METHOD. For curves over prime fields, this returns the bit
812 length of the modulus.
814 [Sheueling Chang Shantz and Douglas Stebila
815 (Sun Microsystems Laboratories)]
817 *) New functions EC_GROUP_dup, EC_POINT_dup.
818 (These simply call ..._new and ..._copy).
820 [Sheueling Chang Shantz and Douglas Stebila
821 (Sun Microsystems Laboratories)]
823 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
824 Polynomials are represented as BIGNUMs (where the sign bit is not
825 used) in the following functions [macros]:
828 BN_GF2m_sub [= BN_GF2m_add]
829 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
830 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
831 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
833 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
834 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
835 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
836 BN_GF2m_cmp [= BN_ucmp]
838 (Note that only the 'mod' functions are actually for fields GF(2^m).
839 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
841 For some functions, an the irreducible polynomial defining a
842 field can be given as an 'unsigned int[]' with strictly
843 decreasing elements giving the indices of those bits that are set;
844 i.e., p[] represents the polynomial
845 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
847 p[0] > p[1] > ... > p[k] = 0.
848 This applies to the following functions:
853 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
854 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
857 BN_GF2m_mod_solve_quad_arr
861 Conversion can be performed by the following functions:
866 bntest.c has additional tests for binary polynomial arithmetic.
868 Two implementations for BN_GF2m_mod_div() are available.
869 The default algorithm simply uses BN_GF2m_mod_inv() and
870 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
871 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
872 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
874 [Sheueling Chang Shantz and Douglas Stebila
875 (Sun Microsystems Laboratories)]
877 *) Add new error code 'ERR_R_DISABLED' that can be used when some
878 functionality is disabled at compile-time.
879 [Douglas Stebila <douglas.stebila@sun.com>]
881 *) Change default behaviour of 'openssl asn1parse' so that more
882 information is visible when viewing, e.g., a certificate:
884 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
885 mode the content of non-printable OCTET STRINGs is output in a
886 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
887 avoid the appearance of a printable string.
888 [Nils Larsch <nla@trustcenter.de>]
890 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
892 EC_GROUP_set_asn1_flag()
893 EC_GROUP_get_asn1_flag()
894 EC_GROUP_set_point_conversion_form()
895 EC_GROUP_get_point_conversion_form()
896 These control ASN1 encoding details:
897 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
898 has been set to OPENSSL_EC_NAMED_CURVE.
899 - Points are encoded in uncompressed form by default; options for
900 asn1_for are as for point2oct, namely
901 POINT_CONVERSION_COMPRESSED
902 POINT_CONVERSION_UNCOMPRESSED
903 POINT_CONVERSION_HYBRID
905 Also add 'seed' and 'seed_len' members to EC_GROUP with access
909 EC_GROUP_get_seed_len()
910 This is used only for ASN1 purposes (so far).
911 [Nils Larsch <nla@trustcenter.de>]
913 *) Add 'field_type' member to EC_METHOD, which holds the NID
914 of the appropriate field type OID. The new function
915 EC_METHOD_get_field_type() returns this value.
916 [Nils Larsch <nla@trustcenter.de>]
923 providing useful interfaces to EC_POINT_point2oct() and
924 EC_POINT_oct2point().
925 [Nils Larsch <nla@trustcenter.de>]
927 *) Change internals of the EC library so that the functions
928 EC_GROUP_set_generator()
929 EC_GROUP_get_generator()
931 EC_GROUP_get_cofactor()
932 are implemented directly in crypto/ec/ec_lib.c and not dispatched
933 to methods, which would lead to unnecessary code duplication when
934 adding different types of curves.
935 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
937 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
938 arithmetic, and such that modified wNAFs are generated
939 (which avoid length expansion in many cases).
942 *) Add a function EC_GROUP_check_discriminant() (defined via
943 EC_METHOD) that verifies that the curve discriminant is non-zero.
945 Add a function EC_GROUP_check() that makes some sanity tests
946 on a EC_GROUP, its generator and order. This includes
947 EC_GROUP_check_discriminant().
948 [Nils Larsch <nla@trustcenter.de>]
950 *) Add ECDSA in new directory crypto/ecdsa/.
952 Add applications 'openssl ecparam' and 'openssl ecdsa'
953 (these are based on 'openssl dsaparam' and 'openssl dsa').
955 ECDSA support is also included in various other files across the
956 library. Most notably,
957 - 'openssl req' now has a '-newkey ecdsa:file' option;
958 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
959 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
960 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
961 them suitable for ECDSA where domain parameters must be
962 extracted before the specific public key;
963 - ECDSA engine support has been added.
964 [Nils Larsch <nla@trustcenter.de>]
966 *) Include some named elliptic curves, and add OIDs from X9.62,
967 SECG, and WAP/WTLS. Each curve can be obtained from the new
969 EC_GROUP_new_by_curve_name(),
970 and the list of available named curves can be obtained with
971 EC_get_builtin_curves().
972 Also add a 'curve_name' member to EC_GROUP objects, which can be
974 EC_GROUP_set_curve_name()
975 EC_GROUP_get_curve_name()
976 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
978 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
979 was actually never needed) and in BN_mul(). The removal in BN_mul()
980 required a small change in bn_mul_part_recursive() and the addition
981 of the functions bn_cmp_part_words(), bn_sub_part_words() and
982 bn_add_part_words(), which do the same thing as bn_cmp_words(),
983 bn_sub_words() and bn_add_words() except they take arrays with
987 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
989 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
990 The value now differs depending on if you build for FIPS or not.
991 BEWARE! A program linked with a shared FIPSed libcrypto can't be
992 safely run with a non-FIPSed libcrypto, as it may crash because of
993 the difference induced by this change.
996 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
998 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
999 (part of SSL_OP_ALL). This option used to disable the
1000 countermeasure against man-in-the-middle protocol-version
1001 rollback in the SSL 2.0 server implementation, which is a bad
1002 idea. (CVE-2005-2969)
1004 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1005 for Information Security, National Institute of Advanced Industrial
1006 Science and Technology [AIST], Japan)]
1008 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1009 mainly for FIPS compliance and not fully integrated at this stage.
1012 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1013 the exponentiation using a fixed-length exponent. (Otherwise,
1014 the information leaked through timing could expose the secret key
1015 after many signatures; cf. Bleichenbacher's attack on DSA with
1019 *) Make a new fixed-window mod_exp implementation the default for
1020 RSA, DSA, and DH private-key operations so that the sequence of
1021 squares and multiplies and the memory access pattern are
1022 independent of the particular secret key. This will mitigate
1023 cache-timing and potential related attacks.
1025 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1026 and this is automatically used by BN_mod_exp_mont() if the new flag
1027 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1028 will use this BN flag for private exponents unless the flag
1029 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1030 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1032 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1034 *) Change the client implementation for SSLv23_method() and
1035 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1036 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1037 (Previously, the SSL 2.0 backwards compatible Client Hello
1038 message format would be used even with SSL_OP_NO_SSLv2.)
1041 *) Add support for smime-type MIME parameter in S/MIME messages which some
1045 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1046 a threadsafe manner. Modify rsa code to use new function and add calls
1047 to dsa and dh code (which had race conditions before).
1050 *) Include the fixed error library code in the C error file definitions
1051 instead of fixing them up at runtime. This keeps the error code
1052 structures constant.
1055 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1057 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1060 *) Fixes for newer kerberos headers. NB: the casts are needed because
1061 the 'length' field is signed on one version and unsigned on another
1062 with no (?) obvious way to tell the difference, without these VC++
1063 complains. Also the "definition" of FAR (blank) is no longer included
1064 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1065 some needed definitions.
1068 *) Undo Cygwin change.
1071 *) Added support for proxy certificates according to RFC 3820.
1072 Because they may be a security thread to unaware applications,
1073 they must be explicitely allowed in run-time. See
1074 docs/HOWTO/proxy_certificates.txt for further information.
1077 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1079 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1080 server and client random values. Previously
1081 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1082 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1084 This change has negligible security impact because:
1086 1. Server and client random values still have 24 bytes of pseudo random
1089 2. Server and client random values are sent in the clear in the initial
1092 3. The master secret is derived using the premaster secret (48 bytes in
1093 size for static RSA ciphersuites) as well as client server and random
1096 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1099 [Stephen Henson, reported by UK NISCC]
1101 *) Use Windows randomness collection on Cygwin.
1104 *) Fix hang in EGD/PRNGD query when communication socket is closed
1105 prematurely by EGD/PRNGD.
1106 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1108 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1111 *) Back-port of selected performance improvements from development
1112 branch, as well as improved support for PowerPC platforms.
1115 *) Add lots of checks for memory allocation failure, error codes to indicate
1116 failure and freeing up memory if a failure occurs.
1117 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1119 *) Add new -passin argument to dgst.
1122 *) Perform some character comparisons of different types in X509_NAME_cmp:
1123 this is needed for some certificates that reencode DNs into UTF8Strings
1124 (in violation of RFC3280) and can't or wont issue name rollover
1128 *) Make an explicit check during certificate validation to see that
1129 the CA setting in each certificate on the chain is correct. As a
1130 side effect always do the following basic checks on extensions,
1131 not just when there's an associated purpose to the check:
1133 - if there is an unhandled critical extension (unless the user
1134 has chosen to ignore this fault)
1135 - if the path length has been exceeded (if one is set at all)
1136 - that certain extensions fit the associated purpose (if one has
1140 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1142 *) Avoid a race condition when CRLs are checked in a multi threaded
1143 environment. This would happen due to the reordering of the revoked
1144 entries during signature checking and serial number lookup. Now the
1145 encoding is cached and the serial number sort performed under a lock.
1146 Add new STACK function sk_is_sorted().
1149 *) Add Delta CRL to the extension code.
1152 *) Various fixes to s3_pkt.c so alerts are sent properly.
1153 [David Holmes <d.holmes@f5.com>]
1155 *) Reduce the chances of duplicate issuer name and serial numbers (in
1156 violation of RFC3280) using the OpenSSL certificate creation utilities.
1157 This is done by creating a random 64 bit value for the initial serial
1158 number when a serial number file is created or when a self signed
1159 certificate is created using 'openssl req -x509'. The initial serial
1160 number file is created using 'openssl x509 -next_serial' in CA.pl
1161 rather than being initialized to 1.
1164 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1166 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1167 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1168 [Joe Orton, Steve Henson]
1170 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1172 [Joe Orton, Steve Henson]
1174 *) Make it possible to have multiple active certificates with the same
1175 subject in the CA index file. This is done only if the keyword
1176 'unique_subject' is set to 'no' in the main CA section (default
1177 if 'CA_default') of the configuration file. The value is saved
1178 with the database itself in a separate index attribute file,
1179 named like the index file with '.attr' appended to the name.
1182 *) X509 verify fixes. Disable broken certificate workarounds when
1183 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1184 keyUsage extension present. Don't accept CRLs with unhandled critical
1185 extensions: since verify currently doesn't process CRL extensions this
1186 rejects a CRL with *any* critical extensions. Add new verify error codes
1190 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1191 A clarification of RFC2560 will require the use of OCTET STRINGs and
1192 some implementations cannot handle the current raw format. Since OpenSSL
1193 copies and compares OCSP nonces as opaque blobs without any attempt at
1194 parsing them this should not create any compatibility issues.
1197 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1198 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1199 this HMAC (and other) operations are several times slower than OpenSSL
1203 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1204 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1206 *) Use the correct content when signing type "other".
1209 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1211 *) Fix various bugs revealed by running the NISCC test suite:
1213 Stop out of bounds reads in the ASN1 code when presented with
1214 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1216 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1218 If verify callback ignores invalid public key errors don't try to check
1219 certificate signature with the NULL public key.
1223 *) New -ignore_err option in ocsp application to stop the server
1224 exiting on the first error in a request.
1227 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1228 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1232 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1233 extra data after the compression methods not only for TLS 1.0
1234 but also for SSL 3.0 (as required by the specification).
1235 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1237 *) Change X509_certificate_type() to mark the key as exported/exportable
1238 when it's 512 *bits* long, not 512 bytes.
1241 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1242 blocks during encryption.
1245 *) Various fixes to base64 BIO and non blocking I/O. On write
1246 flushes were not handled properly if the BIO retried. On read
1247 data was not being buffered properly and had various logic bugs.
1248 This also affects blocking I/O when the data being decoded is a
1252 *) Various S/MIME bugfixes and compatibility changes:
1253 output correct application/pkcs7 MIME type if
1254 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1255 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1256 of files as .eml work). Correctly handle very long lines in MIME
1260 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1262 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1263 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1264 a protocol version number mismatch like a decryption error
1265 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1268 *) Turn on RSA blinding by default in the default implementation
1269 to avoid a timing attack. Applications that don't want it can call
1270 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1271 They would be ill-advised to do so in most cases.
1272 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1274 *) Change RSA blinding code so that it works when the PRNG is not
1275 seeded (in this case, the secret RSA exponent is abused as
1276 an unpredictable seed -- if it is not unpredictable, there
1277 is no point in blinding anyway). Make RSA blinding thread-safe
1278 by remembering the creator's thread ID in rsa->blinding and
1279 having all other threads use local one-time blinding factors
1280 (this requires more computation than sharing rsa->blinding, but
1281 avoids excessive locking; and if an RSA object is not shared
1282 between threads, blinding will still be very fast).
1285 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1286 ENGINE as defaults for all supported algorithms irrespective of
1287 the 'flags' parameter. 'flags' is now honoured, so applications
1288 should make sure they are passing it correctly.
1291 *) Target "mingw" now allows native Windows code to be generated in
1292 the Cygwin environment as well as with the MinGW compiler.
1295 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1297 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1298 via timing by performing a MAC computation even if incorrrect
1299 block cipher padding has been found. This is a countermeasure
1300 against active attacks where the attacker has to distinguish
1301 between bad padding and a MAC verification error. (CVE-2003-0078)
1303 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1304 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1305 Martin Vuagnoux (EPFL, Ilion)]
1307 *) Make the no-err option work as intended. The intention with no-err
1308 is not to have the whole error stack handling routines removed from
1309 libcrypto, it's only intended to remove all the function name and
1310 reason texts, thereby removing some of the footprint that may not
1311 be interesting if those errors aren't displayed anyway.
1313 NOTE: it's still possible for any application or module to have it's
1314 own set of error texts inserted. The routines are there, just not
1315 used by default when no-err is given.
1318 *) Add support for FreeBSD on IA64.
1319 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1321 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1322 Kerberos function mit_des_cbc_cksum(). Before this change,
1323 the value returned by DES_cbc_cksum() was like the one from
1324 mit_des_cbc_cksum(), except the bytes were swapped.
1325 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1327 *) Allow an application to disable the automatic SSL chain building.
1328 Before this a rather primitive chain build was always performed in
1329 ssl3_output_cert_chain(): an application had no way to send the
1330 correct chain if the automatic operation produced an incorrect result.
1332 Now the chain builder is disabled if either:
1334 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1336 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1338 The reasoning behind this is that an application would not want the
1339 auto chain building to take place if extra chain certificates are
1340 present and it might also want a means of sending no additional
1341 certificates (for example the chain has two certificates and the
1345 *) Add the possibility to build without the ENGINE framework.
1346 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1348 *) Under Win32 gmtime() can return NULL: check return value in
1349 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1352 *) DSA routines: under certain error conditions uninitialized BN objects
1353 could be freed. Solution: make sure initialization is performed early
1354 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1355 Nils Larsch <nla@trustcenter.de> via PR#459)
1358 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1359 checked on reconnect on the client side, therefore session resumption
1360 could still fail with a "ssl session id is different" error. This
1361 behaviour is masked when SSL_OP_ALL is used due to
1362 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1363 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1364 followup to PR #377.
1367 *) IA-32 assembler support enhancements: unified ELF targets, support
1368 for SCO/Caldera platforms, fix for Cygwin shared build.
1371 *) Add support for FreeBSD on sparc64. As a consequence, support for
1372 FreeBSD on non-x86 processors is separate from x86 processors on
1373 the config script, much like the NetBSD support.
1374 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1376 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1378 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1381 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1382 code (06) was taken as the first octet of the session ID and the last
1383 octet was ignored consequently. As a result SSLv2 client side session
1384 caching could not have worked due to the session ID mismatch between
1386 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1390 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1391 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1395 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1396 seems that in spite of existing for more than a year, many application
1397 author have done nothing to provide the necessary callbacks, which
1398 means that this particular engine will not work properly anywhere.
1399 This is a very unfortunate situation which forces us, in the name
1400 of usability, to give the hw_ncipher.c a static lock, which is part
1402 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1403 appear in 0.9.8 or later. We EXPECT application authors to have
1404 dealt properly with this when 0.9.8 is released (unless we actually
1405 make such changes in the libcrypto locking code that changes will
1406 have to be made anyway).
1409 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1410 octets have been read, EOF or an error occurs. Without this change
1411 some truncated ASN1 structures will not produce an error.
1414 *) Disable Heimdal support, since it hasn't been fully implemented.
1415 Still give the possibility to force the use of Heimdal, but with
1416 warnings and a request that patches get sent to openssl-dev.
1419 *) Add the VC-CE target, introduce the WINCE sysname, and add
1420 INSTALL.WCE and appropriate conditionals to make it build.
1421 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1423 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1424 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1425 edit numbers of the version.
1426 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1428 *) Introduce safe string copy and catenation functions
1429 (BUF_strlcpy() and BUF_strlcat()).
1430 [Ben Laurie (CHATS) and Richard Levitte]
1432 *) Avoid using fixed-size buffers for one-line DNs.
1433 [Ben Laurie (CHATS)]
1435 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1436 resizing buffers containing secrets, and use where appropriate.
1437 [Ben Laurie (CHATS)]
1439 *) Avoid using fixed size buffers for configuration file location.
1440 [Ben Laurie (CHATS)]
1442 *) Avoid filename truncation for various CA files.
1443 [Ben Laurie (CHATS)]
1445 *) Use sizeof in preference to magic numbers.
1446 [Ben Laurie (CHATS)]
1448 *) Avoid filename truncation in cert requests.
1449 [Ben Laurie (CHATS)]
1451 *) Add assertions to check for (supposedly impossible) buffer
1453 [Ben Laurie (CHATS)]
1455 *) Don't cache truncated DNS entries in the local cache (this could
1456 potentially lead to a spoofing attack).
1457 [Ben Laurie (CHATS)]
1459 *) Fix various buffers to be large enough for hex/decimal
1460 representations in a platform independent manner.
1461 [Ben Laurie (CHATS)]
1463 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1464 resizing buffers containing secrets, and use where appropriate.
1465 [Ben Laurie (CHATS)]
1467 *) Add BIO_indent() to avoid much slightly worrying code to do
1469 [Ben Laurie (CHATS)]
1471 *) Convert sprintf()/BIO_puts() to BIO_printf().
1472 [Ben Laurie (CHATS)]
1474 *) buffer_gets() could terminate with the buffer only half
1476 [Ben Laurie (CHATS)]
1478 *) Add assertions to prevent user-supplied crypto functions from
1479 overflowing internal buffers by having large block sizes, etc.
1480 [Ben Laurie (CHATS)]
1482 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1484 [Ben Laurie (CHATS)]
1486 *) Eliminate unused copy of key in RC4.
1487 [Ben Laurie (CHATS)]
1489 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1490 [Ben Laurie (CHATS)]
1492 *) Fix off-by-one error in EGD path.
1493 [Ben Laurie (CHATS)]
1495 *) If RANDFILE path is too long, ignore instead of truncating.
1496 [Ben Laurie (CHATS)]
1498 *) Eliminate unused and incorrectly sized X.509 structure
1500 [Ben Laurie (CHATS)]
1502 *) Eliminate unused and dangerous function knumber().
1503 [Ben Laurie (CHATS)]
1505 *) Eliminate unused and dangerous structure, KSSL_ERR.
1506 [Ben Laurie (CHATS)]
1508 *) Protect against overlong session ID context length in an encoded
1509 session object. Since these are local, this does not appear to be
1511 [Ben Laurie (CHATS)]
1513 *) Change from security patch (see 0.9.6e below) that did not affect
1514 the 0.9.6 release series:
1516 Remote buffer overflow in SSL3 protocol - an attacker could
1517 supply an oversized master key in Kerberos-enabled versions.
1519 [Ben Laurie (CHATS)]
1521 *) Change the SSL kerb5 codes to match RFC 2712.
1524 *) Make -nameopt work fully for req and add -reqopt switch.
1525 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1527 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1528 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1530 *) Make sure tests can be performed even if the corresponding algorithms
1531 have been removed entirely. This was also the last step to make
1532 OpenSSL compilable with DJGPP under all reasonable conditions.
1533 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1535 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1536 to allow version independent disabling of normally unselected ciphers,
1537 which may be activated as a side-effect of selecting a single cipher.
1539 (E.g., cipher list string "RSA" enables ciphersuites that are left
1540 out of "ALL" because they do not provide symmetric encryption.
1541 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1542 [Lutz Jaenicke, Bodo Moeller]
1544 *) Add appropriate support for separate platform-dependent build
1545 directories. The recommended way to make a platform-dependent
1546 build directory is the following (tested on Linux), maybe with
1549 # Place yourself outside of the OpenSSL source tree. In
1550 # this example, the environment variable OPENSSL_SOURCE
1551 # is assumed to contain the absolute OpenSSL source directory.
1552 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1553 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1554 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1555 mkdir -p `dirname $F`
1556 ln -s $OPENSSL_SOURCE/$F $F
1559 To be absolutely sure not to disturb the source tree, a "make clean"
1560 is a good thing. If it isn't successfull, don't worry about it,
1561 it probably means the source directory is very clean.
1564 *) Make sure any ENGINE control commands make local copies of string
1565 pointers passed to them whenever necessary. Otherwise it is possible
1566 the caller may have overwritten (or deallocated) the original string
1567 data when a later ENGINE operation tries to use the stored values.
1568 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1570 *) Improve diagnostics in file reading and command-line digests.
1571 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1573 *) Add AES modes CFB and OFB to the object database. Correct an
1574 error in AES-CFB decryption.
1577 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1578 allows existing EVP_CIPHER_CTX structures to be reused after
1579 calling EVP_*Final(). This behaviour is used by encryption
1580 BIOs and some applications. This has the side effect that
1581 applications must explicitly clean up cipher contexts with
1582 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1585 *) Check the values of dna and dnb in bn_mul_recursive before calling
1586 bn_mul_comba (a non zero value means the a or b arrays do not contain
1587 n2 elements) and fallback to bn_mul_normal if either is not zero.
1590 *) Fix escaping of non-ASCII characters when using the -subj option
1591 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1594 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1595 form for "surname", serialNumber has no short form.
1596 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1597 therefore remove "mail" short name for "internet 7".
1598 The OID for unique identifiers in X509 certificates is
1599 x500UniqueIdentifier, not uniqueIdentifier.
1600 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1603 *) Add an "init" command to the ENGINE config module and auto initialize
1604 ENGINEs. Without any "init" command the ENGINE will be initialized
1605 after all ctrl commands have been executed on it. If init=1 the
1606 ENGINE is initailized at that point (ctrls before that point are run
1607 on the uninitialized ENGINE and after on the initialized one). If
1608 init=0 then the ENGINE will not be iniatialized at all.
1611 *) Fix the 'app_verify_callback' interface so that the user-defined
1612 argument is actually passed to the callback: In the
1613 SSL_CTX_set_cert_verify_callback() prototype, the callback
1614 declaration has been changed from
1617 int (*cb)(X509_STORE_CTX *,void *);
1618 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1619 i=s->ctx->app_verify_callback(&ctx)
1620 has been changed into
1621 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1623 To update applications using SSL_CTX_set_cert_verify_callback(),
1624 a dummy argument can be added to their callback functions.
1625 [D. K. Smetters <smetters@parc.xerox.com>]
1627 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1628 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1630 *) Add and OPENSSL_LOAD_CONF define which will cause
1631 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1632 This allows older applications to transparently support certain
1633 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1634 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1635 load the config file and OPENSSL_add_all_algorithms_conf() which will
1636 always load it have also been added.
1639 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1640 Adjust NIDs and EVP layer.
1641 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1643 *) Config modules support in openssl utility.
1645 Most commands now load modules from the config file,
1646 though in a few (such as version) this isn't done
1647 because it couldn't be used for anything.
1649 In the case of ca and req the config file used is
1650 the same as the utility itself: that is the -config
1651 command line option can be used to specify an
1655 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1656 use "openssl_conf" if filename is NULL use default openssl config file.
1659 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1660 config section name. Add a new flag to tolerate a missing config file
1661 and move code to CONF_modules_load_file().
1664 *) Support for crypto accelerator cards from Accelerated Encryption
1665 Processing, www.aep.ie. (Use engine 'aep')
1666 The support was copied from 0.9.6c [engine] and adapted/corrected
1667 to work with the new engine framework.
1668 [AEP Inc. and Richard Levitte]
1670 *) Support for SureWare crypto accelerator cards from Baltimore
1671 Technologies. (Use engine 'sureware')
1672 The support was copied from 0.9.6c [engine] and adapted
1673 to work with the new engine framework.
1676 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1677 make the newer ENGINE framework commands for the CHIL engine work.
1678 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1680 *) Make it possible to produce shared libraries on ReliantUNIX.
1681 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1683 *) Add the configuration target debug-linux-ppro.
1684 Make 'openssl rsa' use the general key loading routines
1685 implemented in apps.c, and make those routines able to
1686 handle the key format FORMAT_NETSCAPE and the variant
1688 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1690 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1691 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1693 *) Add -keyform to rsautl, and document -engine.
1694 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1696 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1697 BIO_R_NO_SUCH_FILE error code rather than the generic
1698 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1701 *) Add new functions
1703 ERR_peek_last_error_line
1704 ERR_peek_last_error_line_data.
1705 These are similar to
1708 ERR_peek_error_line_data,
1709 but report on the latest error recorded rather than the first one
1710 still in the error queue.
1711 [Ben Laurie, Bodo Moeller]
1713 *) default_algorithms option in ENGINE config module. This allows things
1715 default_algorithms = ALL
1716 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1719 *) Prelminary ENGINE config module.
1722 *) New experimental application configuration code.
1725 *) Change the AES code to follow the same name structure as all other
1726 symmetric ciphers, and behave the same way. Move everything to
1727 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1728 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1730 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1731 [Ben Laurie and Theo de Raadt]
1733 *) Add option to output public keys in req command.
1734 [Massimiliano Pala madwolf@openca.org]
1736 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1737 (up to about 10% better than before for P-192 and P-224).
1740 *) New functions/macros
1742 SSL_CTX_set_msg_callback(ctx, cb)
1743 SSL_CTX_set_msg_callback_arg(ctx, arg)
1744 SSL_set_msg_callback(ssl, cb)
1745 SSL_set_msg_callback_arg(ssl, arg)
1747 to request calling a callback function
1749 void cb(int write_p, int version, int content_type,
1750 const void *buf, size_t len, SSL *ssl, void *arg)
1752 whenever a protocol message has been completely received
1753 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1754 protocol version according to which the SSL library interprets
1755 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1756 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1757 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1758 specification (change_cipher_spec(20), alert(21), handshake(22)).
1759 'buf' and 'len' point to the actual message, 'ssl' to the
1760 SSL object, and 'arg' is the application-defined value set by
1761 SSL[_CTX]_set_msg_callback_arg().
1763 'openssl s_client' and 'openssl s_server' have new '-msg' options
1764 to enable a callback that displays all protocol messages.
1767 *) Change the shared library support so shared libraries are built as
1768 soon as the corresponding static library is finished, and thereby get
1769 openssl and the test programs linked against the shared library.
1770 This still only happens when the keyword "shard" has been given to
1771 the configuration scripts.
1773 NOTE: shared library support is still an experimental thing, and
1774 backward binary compatibility is still not guaranteed.
1775 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1777 *) Add support for Subject Information Access extension.
1778 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1780 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1781 additional bytes when new memory had to be allocated, not just
1782 when reusing an existing buffer.
1785 *) New command line and configuration option 'utf8' for the req command.
1786 This allows field values to be specified as UTF8 strings.
1789 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1790 runs for the former and machine-readable output for the latter.
1793 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1794 of the e-mail address in the DN (i.e., it will go into a certificate
1795 extension only). The new configuration file option 'email_in_dn = no'
1796 has the same effect.
1797 [Massimiliano Pala madwolf@openca.org]
1799 *) Change all functions with names starting with des_ to be starting
1800 with DES_ instead. Add wrappers that are compatible with libdes,
1801 but are named _ossl_old_des_*. Finally, add macros that map the
1802 des_* symbols to the corresponding _ossl_old_des_* if libdes
1803 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1804 desired, the des_* symbols will be mapped to DES_*, with one
1807 Since we provide two compatibility mappings, the user needs to
1808 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1809 compatibility is desired. The default (i.e., when that macro
1810 isn't defined) is OpenSSL 0.9.6c compatibility.
1812 There are also macros that enable and disable the support of old
1813 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1814 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1815 are defined, the default will apply: to support the old des routines.
1817 In either case, one must include openssl/des.h to get the correct
1818 definitions. Do not try to just include openssl/des_old.h, that
1821 NOTE: This is a major break of an old API into a new one. Software
1822 authors are encouraged to switch to the DES_ style functions. Some
1823 time in the future, des_old.h and the libdes compatibility functions
1824 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1825 default), and then completely removed.
1828 *) Test for certificates which contain unsupported critical extensions.
1829 If such a certificate is found during a verify operation it is
1830 rejected by default: this behaviour can be overridden by either
1831 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1832 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1833 X509_supported_extension() has also been added which returns 1 if a
1834 particular extension is supported.
1837 *) Modify the behaviour of EVP cipher functions in similar way to digests
1838 to retain compatibility with existing code.
1841 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1842 compatibility with existing code. In particular the 'ctx' parameter does
1843 not have to be to be initialized before the call to EVP_DigestInit() and
1844 it is tidied up after a call to EVP_DigestFinal(). New function
1845 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1846 EVP_MD_CTX_copy() changed to not require the destination to be
1847 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1848 requires the destination to be valid.
1850 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1851 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1854 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1855 so that complete 'Handshake' protocol structures are kept in memory
1856 instead of overwriting 'msg_type' and 'length' with 'body' data.
1859 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1860 [Massimo Santin via Richard Levitte]
1862 *) Major restructuring to the underlying ENGINE code. This includes
1863 reduction of linker bloat, separation of pure "ENGINE" manipulation
1864 (initialisation, etc) from functionality dealing with implementations
1865 of specific crypto iterfaces. This change also introduces integrated
1866 support for symmetric ciphers and digest implementations - so ENGINEs
1867 can now accelerate these by providing EVP_CIPHER and EVP_MD
1868 implementations of their own. This is detailed in crypto/engine/README
1869 as it couldn't be adequately described here. However, there are a few
1870 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1871 were changed in the original introduction of ENGINE code have now
1872 reverted back - the hooking from this code to ENGINE is now a good
1873 deal more passive and at run-time, operations deal directly with
1874 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1875 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1876 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1877 they were not being used by the framework as there is no concept of a
1878 BIGNUM_METHOD and they could not be generalised to the new
1879 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1880 ENGINE_cpy() has been removed as it cannot be consistently defined in
1884 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1887 *) Change mkdef.pl to sort symbols that get the same entry number,
1888 and make sure the automatically generated functions ERR_load_*
1889 become part of libeay.num as well.
1892 *) New function SSL_renegotiate_pending(). This returns true once
1893 renegotiation has been requested (either SSL_renegotiate() call
1894 or HelloRequest/ClientHello receveived from the peer) and becomes
1895 false once a handshake has been completed.
1896 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1897 sends a HelloRequest, but does not ensure that a handshake takes
1898 place. SSL_renegotiate_pending() is useful for checking if the
1899 client has followed the request.)
1902 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1903 By default, clients may request session resumption even during
1904 renegotiation (if session ID contexts permit); with this option,
1905 session resumption is possible only in the first handshake.
1907 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1908 more bits available for options that should not be part of
1909 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1912 *) Add some demos for certificate and certificate request creation.
1915 *) Make maximum certificate chain size accepted from the peer application
1916 settable (SSL*_get/set_max_cert_list()), as proposed by
1917 "Douglas E. Engert" <deengert@anl.gov>.
1920 *) Add support for shared libraries for Unixware-7
1921 (Boyd Lynn Gerber <gerberb@zenez.com>).
1924 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1925 be done prior to destruction. Use this to unload error strings from
1926 ENGINEs that load their own error strings. NB: This adds two new API
1927 functions to "get" and "set" this destroy handler in an ENGINE.
1930 *) Alter all existing ENGINE implementations (except "openssl" and
1931 "openbsd") to dynamically instantiate their own error strings. This
1932 makes them more flexible to be built both as statically-linked ENGINEs
1933 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1934 Also, add stub code to each that makes building them as self-contained
1935 shared-libraries easier (see README.ENGINE).
1938 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1939 implementations into applications that are completely implemented in
1940 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1941 commands that can be used to configure what shared-library to load and
1942 to control aspects of the way it is handled. Also, made an update to
1943 the README.ENGINE file that brings its information up-to-date and
1944 provides some information and instructions on the "dynamic" ENGINE
1945 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1948 *) Make it possible to unload ranges of ERR strings with a new
1949 "ERR_unload_strings" function.
1952 *) Add a copy() function to EVP_MD.
1955 *) Make EVP_MD routines take a context pointer instead of just the
1956 md_data void pointer.
1959 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1960 that the digest can only process a single chunk of data
1961 (typically because it is provided by a piece of
1962 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1963 is only going to provide a single chunk of data, and hence the
1964 framework needn't accumulate the data for oneshot drivers.
1967 *) As with "ERR", make it possible to replace the underlying "ex_data"
1968 functions. This change also alters the storage and management of global
1969 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1970 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1971 index counters. The API functions that use this state have been changed
1972 to take a "class_index" rather than pointers to the class's local STACK
1973 and counter, and there is now an API function to dynamically create new
1974 classes. This centralisation allows us to (a) plug a lot of the
1975 thread-safety problems that existed, and (b) makes it possible to clean
1976 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1977 such data would previously have always leaked in application code and
1978 workarounds were in place to make the memory debugging turn a blind eye
1979 to it. Application code that doesn't use this new function will still
1980 leak as before, but their memory debugging output will announce it now
1981 rather than letting it slide.
1983 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1984 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1985 has a return value to indicate success or failure.
1988 *) Make it possible to replace the underlying "ERR" functions such that the
1989 global state (2 LHASH tables and 2 locks) is only used by the "default"
1990 implementation. This change also adds two functions to "get" and "set"
1991 the implementation prior to it being automatically set the first time
1992 any other ERR function takes place. Ie. an application can call "get",
1993 pass the return value to a module it has just loaded, and that module
1994 can call its own "set" function using that value. This means the
1995 module's "ERR" operations will use (and modify) the error state in the
1996 application and not in its own statically linked copy of OpenSSL code.
1999 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2000 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2001 the operation, and provides a more encapsulated way for external code
2002 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2003 to use these functions rather than manually incrementing the counts.
2005 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2008 *) Add EVP test program.
2011 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2014 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2015 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2016 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2017 These allow a CRL to be built without having to access X509_CRL fields
2018 directly. Modify 'ca' application to use new functions.
2021 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2022 bug workarounds. Rollback attack detection is a security feature.
2023 The problem will only arise on OpenSSL servers when TLSv1 is not
2024 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2025 Software authors not wanting to support TLSv1 will have special reasons
2026 for their choice and can explicitly enable this option.
2027 [Bodo Moeller, Lutz Jaenicke]
2029 *) Rationalise EVP so it can be extended: don't include a union of
2030 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2031 (similar to those existing for EVP_CIPHER_CTX).
2036 EVP_MD_CTX_init(&md); /* new function call */
2037 EVP_DigestInit(&md, EVP_sha1());
2038 EVP_DigestUpdate(&md, in, len);
2039 EVP_DigestFinal(&md, out, NULL);
2040 EVP_MD_CTX_cleanup(&md); /* new function call */
2044 *) Make DES key schedule conform to the usual scheme, as well as
2045 correcting its structure. This means that calls to DES functions
2046 now have to pass a pointer to a des_key_schedule instead of a
2047 plain des_key_schedule (which was actually always a pointer
2050 des_key_schedule ks;
2052 des_set_key_checked(..., &ks);
2053 des_ncbc_encrypt(..., &ks, ...);
2055 (Note that a later change renames 'des_...' into 'DES_...'.)
2058 *) Initial reduction of linker bloat: the use of some functions, such as
2059 PEM causes large amounts of unused functions to be linked in due to
2060 poor organisation. For example pem_all.c contains every PEM function
2061 which has a knock on effect of linking in large amounts of (unused)
2062 ASN1 code. Grouping together similar functions and splitting unrelated
2063 functions prevents this.
2066 *) Cleanup of EVP macros.
2069 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2070 correct _ecb suffix.
2073 *) Add initial OCSP responder support to ocsp application. The
2074 revocation information is handled using the text based index
2075 use by the ca application. The responder can either handle
2076 requests generated internally, supplied in files (for example
2077 via a CGI script) or using an internal minimal server.
2080 *) Add configuration choices to get zlib compression for TLS.
2083 *) Changes to Kerberos SSL for RFC 2712 compliance:
2084 1. Implemented real KerberosWrapper, instead of just using
2085 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2086 2. Implemented optional authenticator field of KerberosWrapper.
2088 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2089 and authenticator structs; see crypto/krb5/.
2091 Generalized Kerberos calls to support multiple Kerberos libraries.
2092 [Vern Staats <staatsvr@asc.hpc.mil>,
2093 Jeffrey Altman <jaltman@columbia.edu>
2094 via Richard Levitte]
2096 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2097 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2098 values for each of the key sizes rather than having just
2099 parameters (and 'speed' generating keys each time).
2102 *) Speed up EVP routines.
2105 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2106 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2107 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2108 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2110 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2111 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2112 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2115 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2117 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2120 *) Added the OS2-EMX target.
2121 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2123 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2124 to support NCONF routines in extension code. New function CONF_set_nconf()
2125 to allow functions which take an NCONF to also handle the old LHASH
2126 structure: this means that the old CONF compatible routines can be
2127 retained (in particular wrt extensions) without having to duplicate the
2128 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2131 *) Enhance the general user interface with mechanisms for inner control
2132 and with possibilities to have yes/no kind of prompts.
2135 *) Change all calls to low level digest routines in the library and
2136 applications to use EVP. Add missing calls to HMAC_cleanup() and
2137 don't assume HMAC_CTX can be copied using memcpy().
2138 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2140 *) Add the possibility to control engines through control names but with
2141 arbitrary arguments instead of just a string.
2142 Change the key loaders to take a UI_METHOD instead of a callback
2143 function pointer. NOTE: this breaks binary compatibility with earlier
2144 versions of OpenSSL [engine].
2145 Adapt the nCipher code for these new conditions and add a card insertion
2149 *) Enhance the general user interface with mechanisms to better support
2150 dialog box interfaces, application-defined prompts, the possibility
2151 to use defaults (for example default passwords from somewhere else)
2152 and interrupts/cancellations.
2155 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2156 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2159 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2160 tidy up some unnecessarily weird code in 'sk_new()').
2161 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2163 *) Change the key loading routines for ENGINEs to use the same kind
2164 callback (pem_password_cb) as all other routines that need this
2168 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2169 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2170 than this minimum value is recommended.
2173 *) New random seeder for OpenVMS, using the system process statistics
2174 that are easily reachable.
2177 *) Windows apparently can't transparently handle global
2178 variables defined in DLLs. Initialisations such as:
2180 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2182 wont compile. This is used by the any applications that need to
2183 declare their own ASN1 modules. This was fixed by adding the option
2184 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2185 needed for static libraries under Win32.
2188 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2189 setting of purpose and trust fields. New X509_STORE trust and
2190 purpose functions and tidy up setting in other SSL functions.
2193 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2194 structure. These are inherited by X509_STORE_CTX when it is
2195 initialised. This allows various defaults to be set in the
2196 X509_STORE structure (such as flags for CRL checking and custom
2197 purpose or trust settings) for functions which only use X509_STORE_CTX
2198 internally such as S/MIME.
2200 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2201 trust settings if they are not set in X509_STORE. This allows X509_STORE
2202 purposes and trust (in S/MIME for example) to override any set by default.
2204 Add command line options for CRL checking to smime, s_client and s_server
2208 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2209 are set then the CRL is looked up in the X509_STORE structure and
2210 its validity and signature checked, then if the certificate is found
2211 in the CRL the verify fails with a revoked error.
2213 Various new CRL related callbacks added to X509_STORE_CTX structure.
2215 Command line options added to 'verify' application to support this.
2217 This needs some additional work, such as being able to handle multiple
2218 CRLs with different times, extension based lookup (rather than just
2219 by subject name) and ultimately more complete V2 CRL extension
2223 *) Add a general user interface API (crypto/ui/). This is designed
2224 to replace things like des_read_password and friends (backward
2225 compatibility functions using this new API are provided).
2226 The purpose is to remove prompting functions from the DES code
2227 section as well as provide for prompting through dialog boxes in
2228 a window system and the like.
2231 *) Add "ex_data" support to ENGINE so implementations can add state at a
2232 per-structure level rather than having to store it globally.
2235 *) Make it possible for ENGINE structures to be copied when retrieved by
2236 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2237 This causes the "original" ENGINE structure to act like a template,
2238 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2239 operational state can be localised to each ENGINE structure, despite the
2240 fact they all share the same "methods". New ENGINE structures returned in
2241 this case have no functional references and the return value is the single
2242 structural reference. This matches the single structural reference returned
2243 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2247 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2248 needs to match any other type at all we need to manually clear the
2252 *) Changes to the "openssl engine" utility to include;
2253 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2254 about an ENGINE's available control commands.
2255 - executing control commands from command line arguments using the
2256 '-pre' and '-post' switches. '-post' is only used if '-t' is
2257 specified and the ENGINE is successfully initialised. The syntax for
2258 the individual commands are colon-separated, for example;
2259 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2262 *) New dynamic control command support for ENGINEs. ENGINEs can now
2263 declare their own commands (numbers), names (strings), descriptions,
2264 and input types for run-time discovery by calling applications. A
2265 subset of these commands are implicitly classed as "executable"
2266 depending on their input type, and only these can be invoked through
2267 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2268 can be based on user input, config files, etc). The distinction is
2269 that "executable" commands cannot return anything other than a boolean
2270 result and can only support numeric or string input, whereas some
2271 discoverable commands may only be for direct use through
2272 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2273 pointers, or other custom uses. The "executable" commands are to
2274 support parameterisations of ENGINE behaviour that can be
2275 unambiguously defined by ENGINEs and used consistently across any
2276 OpenSSL-based application. Commands have been added to all the
2277 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2278 control over shared-library paths without source code alterations.
2281 *) Changed all ENGINE implementations to dynamically allocate their
2282 ENGINEs rather than declaring them statically. Apart from this being
2283 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2284 this also allows the implementations to compile without using the
2285 internal engine_int.h header.
2288 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2289 'const' value. Any code that should be able to modify a RAND_METHOD
2290 should already have non-const pointers to it (ie. they should only
2291 modify their own ones).
2294 *) Made a variety of little tweaks to the ENGINE code.
2295 - "atalla" and "ubsec" string definitions were moved from header files
2296 to C code. "nuron" string definitions were placed in variables
2297 rather than hard-coded - allowing parameterisation of these values
2298 later on via ctrl() commands.
2299 - Removed unused "#if 0"'d code.
2300 - Fixed engine list iteration code so it uses ENGINE_free() to release
2301 structural references.
2302 - Constified the RAND_METHOD element of ENGINE structures.
2303 - Constified various get/set functions as appropriate and added
2304 missing functions (including a catch-all ENGINE_cpy that duplicates
2305 all ENGINE values onto a new ENGINE except reference counts/state).
2306 - Removed NULL parameter checks in get/set functions. Setting a method
2307 or function to NULL is a way of cancelling out a previously set
2308 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2309 and doesn't justify the extra error symbols and code.
2310 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2311 flags from engine_int.h to engine.h.
2312 - Changed prototypes for ENGINE handler functions (init(), finish(),
2313 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2316 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2317 to the algorithm using long division. The binary algorithm can be
2318 used only if the modulus is odd. On 32-bit systems, it is faster
2319 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2320 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2321 up to 450 bits. In 64-bit environments, the binary algorithm
2322 appears to be advantageous for much longer moduli; here we use it
2323 for moduli up to 2048 bits.
2326 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2327 could not support the combine flag in choice fields.
2330 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2331 extensions from a certificate request to the certificate.
2334 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2335 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2336 file: this allows the display of the certificate about to be
2337 signed to be customised, to allow certain fields to be included
2338 or excluded and extension details. The old system didn't display
2339 multicharacter strings properly, omitted fields not in the policy
2340 and couldn't display additional details such as extensions.
2343 *) Function EC_POINTs_mul for multiple scalar multiplication
2344 of an arbitrary number of elliptic curve points
2345 \sum scalars[i]*points[i],
2346 optionally including the generator defined for the EC_GROUP:
2347 scalar*generator + \sum scalars[i]*points[i].
2349 EC_POINT_mul is a simple wrapper function for the typical case
2350 that the point list has just one item (besides the optional
2354 *) First EC_METHODs for curves over GF(p):
2356 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2357 operations and provides various method functions that can also
2358 operate with faster implementations of modular arithmetic.
2360 EC_GFp_mont_method() reuses most functions that are part of
2361 EC_GFp_simple_method, but uses Montgomery arithmetic.
2363 [Bodo Moeller; point addition and point doubling
2364 implementation directly derived from source code provided by
2365 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2367 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2368 crypto/ec/ec_lib.c):
2370 Curves are EC_GROUP objects (with an optional group generator)
2371 based on EC_METHODs that are built into the library.
2373 Points are EC_POINT objects based on EC_GROUP objects.
2375 Most of the framework would be able to handle curves over arbitrary
2376 finite fields, but as there are no obvious types for fields other
2377 than GF(p), some functions are limited to that for now.
2380 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2381 that the file contains a complete HTTP response.
2384 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2385 change the def and num file printf format specifier from "%-40sXXX"
2386 to "%-39s XXX". The latter will always guarantee a space after the
2387 field while the former will cause them to run together if the field
2388 is 40 of more characters long.
2391 *) Constify the cipher and digest 'method' functions and structures
2392 and modify related functions to take constant EVP_MD and EVP_CIPHER
2396 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2397 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2400 *) Modify EVP_Digest*() routines so they now return values. Although the
2401 internal software routines can never fail additional hardware versions
2405 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2407 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2408 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2411 ERR_R_NESTED_ASN1_ERROR
2413 ERR_R_MISSING_ASN1_EOS
2414 were 4 .. 9, conflicting with
2415 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2417 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2418 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2420 Add new error code 'ERR_R_INTERNAL_ERROR'.
2423 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2427 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2428 sets the subject name for a new request or supersedes the
2429 subject name in a given request. Formats that can be parsed are
2430 'CN=Some Name, OU=myOU, C=IT'
2432 'CN=Some Name/OU=myOU/C=IT'.
2434 Add options '-batch' and '-verbose' to 'openssl req'.
2435 [Massimiliano Pala <madwolf@hackmasters.net>]
2437 *) Introduce the possibility to access global variables through
2438 functions on platform were that's the best way to handle exporting
2439 global variables in shared libraries. To enable this functionality,
2440 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2441 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2442 is normally done by Configure or something similar).
2444 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2445 in the source file (foo.c) like this:
2447 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2448 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2450 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2451 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2453 OPENSSL_DECLARE_GLOBAL(int,foo);
2454 #define foo OPENSSL_GLOBAL_REF(foo)
2455 OPENSSL_DECLARE_GLOBAL(double,bar);
2456 #define bar OPENSSL_GLOBAL_REF(bar)
2458 The #defines are very important, and therefore so is including the
2459 header file everywhere where the defined globals are used.
2461 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2462 of ASN.1 items, but that structure is a bit different.
2464 The largest change is in util/mkdef.pl which has been enhanced with
2465 better and easier to understand logic to choose which symbols should
2466 go into the Windows .def files as well as a number of fixes and code
2467 cleanup (among others, algorithm keywords are now sorted
2468 lexicographically to avoid constant rewrites).
2471 *) In BN_div() keep a copy of the sign of 'num' before writing the
2472 result to 'rm' because if rm==num the value will be overwritten
2473 and produce the wrong result if 'num' is negative: this caused
2474 problems with BN_mod() and BN_nnmod().
2477 *) Function OCSP_request_verify(). This checks the signature on an
2478 OCSP request and verifies the signer certificate. The signer
2479 certificate is just checked for a generic purpose and OCSP request
2483 *) Add OCSP_check_validity() function to check the validity of OCSP
2484 responses. OCSP responses are prepared in real time and may only
2485 be a few seconds old. Simply checking that the current time lies
2486 between thisUpdate and nextUpdate max reject otherwise valid responses
2487 caused by either OCSP responder or client clock inaccuracy. Instead
2488 we allow thisUpdate and nextUpdate to fall within a certain period of
2489 the current time. The age of the response can also optionally be
2490 checked. Two new options -validity_period and -status_age added to
2494 *) If signature or public key algorithm is unrecognized print out its
2495 OID rather that just UNKNOWN.
2498 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2499 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2500 ID to be generated from the issuer certificate alone which can then be
2501 passed to OCSP_id_issuer_cmp().
2504 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2505 ASN1 modules to export functions returning ASN1_ITEM pointers
2506 instead of the ASN1_ITEM structures themselves. This adds several
2507 new macros which allow the underlying ASN1 function/structure to
2508 be accessed transparently. As a result code should not use ASN1_ITEM
2509 references directly (such as &X509_it) but instead use the relevant
2510 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2511 use of the new ASN1 code on platforms where exporting structures
2512 is problematical (for example in shared libraries) but exporting
2513 functions returning pointers to structures is not.
2516 *) Add support for overriding the generation of SSL/TLS session IDs.
2517 These callbacks can be registered either in an SSL_CTX or per SSL.
2518 The purpose of this is to allow applications to control, if they wish,
2519 the arbitrary values chosen for use as session IDs, particularly as it
2520 can be useful for session caching in multiple-server environments. A
2521 command-line switch for testing this (and any client code that wishes
2522 to use such a feature) has been added to "s_server".
2523 [Geoff Thorpe, Lutz Jaenicke]
2525 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2526 of the form '#if defined(...) || defined(...) || ...' and
2527 '#if !defined(...) && !defined(...) && ...'. This also avoids
2528 the growing number of special cases it was previously handling.
2531 *) Make all configuration macros available for application by making
2532 sure they are available in opensslconf.h, by giving them names starting
2533 with "OPENSSL_" to avoid conflicts with other packages and by making
2534 sure e_os2.h will cover all platform-specific cases together with
2536 Additionally, it is now possible to define configuration/platform-
2537 specific names (called "system identities"). In the C code, these
2538 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2539 macro with the name beginning with "OPENSSL_SYS_", which is determined
2540 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2544 *) New option -set_serial to 'req' and 'x509' this allows the serial
2545 number to use to be specified on the command line. Previously self
2546 signed certificates were hard coded with serial number 0 and the
2547 CA options of 'x509' had to use a serial number in a file which was
2551 *) New options to 'ca' utility to support V2 CRL entry extensions.
2552 Currently CRL reason, invalidity date and hold instruction are
2553 supported. Add new CRL extensions to V3 code and some new objects.
2556 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2557 disable standard block padding (aka PKCS#5 padding) in the EVP
2558 API, which was previously mandatory. This means that the data is
2559 not padded in any way and so the total length much be a multiple
2560 of the block size, otherwise an error occurs.
2563 *) Initial (incomplete) OCSP SSL support.
2566 *) New function OCSP_parse_url(). This splits up a URL into its host,
2567 port and path components: primarily to parse OCSP URLs. New -url
2568 option to ocsp utility.
2571 *) New nonce behavior. The return value of OCSP_check_nonce() now
2572 reflects the various checks performed. Applications can decide
2573 whether to tolerate certain situations such as an absent nonce
2574 in a response when one was present in a request: the ocsp application
2575 just prints out a warning. New function OCSP_add1_basic_nonce()
2576 this is to allow responders to include a nonce in a response even if
2577 the request is nonce-less.
2580 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2581 skipped when using openssl x509 multiple times on a single input file,
2582 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2585 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2586 set string type: to handle setting ASN1_TIME structures. Fix ca
2587 utility to correctly initialize revocation date of CRLs.
2590 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2591 the clients preferred ciphersuites and rather use its own preferences.
2592 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2593 Internet Explorer by ensuring unchanged hash method during stepup.
2594 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2597 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2598 to aes and add a new 'exist' option to print out symbols that don't
2602 *) Additional options to ocsp utility to allow flags to be set and
2603 additional certificates supplied.
2606 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2607 OCSP client a number of certificate to only verify the response
2611 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2612 handle the new API. Currently only ECB, CBC modes supported. Add new
2615 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2616 Encryption Standard (AES) Ciphersuites for Transport Layer
2617 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2618 not enabled by default and were not part of the "ALL" ciphersuite
2619 alias because they were not yet official; they could be
2620 explicitly requested by specifying the "AESdraft" ciphersuite
2621 group alias. In the final release of OpenSSL 0.9.7, the group
2622 alias is called "AES" and is part of "ALL".)
2623 [Ben Laurie, Steve Henson, Bodo Moeller]
2625 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2626 request to response.
2629 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2630 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2631 extract information from a certificate request. OCSP_response_create()
2632 creates a response and optionally adds a basic response structure.
2633 OCSP_basic_add1_status() adds a complete single response to a basic
2634 response and returns the OCSP_SINGLERESP structure just added (to allow
2635 extensions to be included for example). OCSP_basic_add1_cert() adds a
2636 certificate to a basic response and OCSP_basic_sign() signs a basic
2637 response with various flags. New helper functions ASN1_TIME_check()
2638 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2639 (converts ASN1_TIME to GeneralizedTime).
2642 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2643 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2644 structure from a certificate. X509_pubkey_digest() digests the public_key
2645 contents: this is used in various key identifiers.
2648 *) Make sk_sort() tolerate a NULL argument.
2649 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2651 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2652 passed by the function are trusted implicitly. If any of them signed the
2653 response then it is assumed to be valid and is not verified.
2656 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2657 to data. This was previously part of the PKCS7 ASN1 code. This
2658 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2659 [Steve Henson, reported by Kenneth R. Robinette
2660 <support@securenetterm.com>]
2662 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2663 routines: without these tracing memory leaks is very painful.
2664 Fix leaks in PKCS12 and PKCS7 routines.
2667 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2668 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2669 effectively meant GeneralizedTime would never be used. Now it
2670 is initialised to -1 but X509_time_adj() now has to check the value
2671 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2672 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2673 [Steve Henson, reported by Kenneth R. Robinette
2674 <support@securenetterm.com>]
2676 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2677 result in a zero length in the ASN1_INTEGER structure which was
2678 not consistent with the structure when d2i_ASN1_INTEGER() was used
2679 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2680 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2681 where it did not print out a minus for negative ASN1_INTEGER.
2684 *) Add summary printout to ocsp utility. The various functions which
2685 convert status values to strings have been renamed to:
2686 OCSP_response_status_str(), OCSP_cert_status_str() and
2687 OCSP_crl_reason_str() and are no longer static. New options
2688 to verify nonce values and to disable verification. OCSP response
2689 printout format cleaned up.
2692 *) Add additional OCSP certificate checks. These are those specified
2693 in RFC2560. This consists of two separate checks: the CA of the
2694 certificate being checked must either be the OCSP signer certificate
2695 or the issuer of the OCSP signer certificate. In the latter case the
2696 OCSP signer certificate must contain the OCSP signing extended key
2697 usage. This check is performed by attempting to match the OCSP
2698 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2699 in the OCSP_CERTID structures of the response.
2702 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2703 and related routines. This uses the standard OpenSSL certificate
2704 verify routines to perform initial checks (just CA validity) and
2705 to obtain the certificate chain. Then additional checks will be
2706 performed on the chain. Currently the root CA is checked to see
2707 if it is explicitly trusted for OCSP signing. This is used to set
2708 a root CA as a global signing root: that is any certificate that
2709 chains to that CA is an acceptable OCSP signing certificate.
2712 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2713 extensions from a separate configuration file.
2714 As when reading extensions from the main configuration file,
2715 the '-extensions ...' option may be used for specifying the
2717 [Massimiliano Pala <madwolf@comune.modena.it>]
2719 *) New OCSP utility. Allows OCSP requests to be generated or
2720 read. The request can be sent to a responder and the output
2721 parsed, outputed or printed in text form. Not complete yet:
2722 still needs to check the OCSP response validity.
2725 *) New subcommands for 'openssl ca':
2726 'openssl ca -status <serial>' prints the status of the cert with
2727 the given serial number (according to the index file).
2728 'openssl ca -updatedb' updates the expiry status of certificates
2730 [Massimiliano Pala <madwolf@comune.modena.it>]
2732 *) New '-newreq-nodes' command option to CA.pl. This is like
2733 '-newreq', but calls 'openssl req' with the '-nodes' option
2734 so that the resulting key is not encrypted.
2735 [Damien Miller <djm@mindrot.org>]
2737 *) New configuration for the GNU Hurd.
2738 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2740 *) Initial code to implement OCSP basic response verify. This
2741 is currently incomplete. Currently just finds the signer's
2742 certificate and verifies the signature on the response.
2745 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2746 value of OPENSSLDIR. This is available via the new '-d' option
2747 to 'openssl version', and is also included in 'openssl version -a'.
2750 *) Allowing defining memory allocation callbacks that will be given
2751 file name and line number information in additional arguments
2752 (a const char* and an int). The basic functionality remains, as
2753 well as the original possibility to just replace malloc(),
2754 realloc() and free() by functions that do not know about these
2755 additional arguments. To register and find out the current
2756 settings for extended allocation functions, the following
2757 functions are provided:
2759 CRYPTO_set_mem_ex_functions
2760 CRYPTO_set_locked_mem_ex_functions
2761 CRYPTO_get_mem_ex_functions
2762 CRYPTO_get_locked_mem_ex_functions
2764 These work the same way as CRYPTO_set_mem_functions and friends.
2765 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2766 extended allocation function is enabled.
2767 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2768 a conventional allocation function is enabled.
2769 [Richard Levitte, Bodo Moeller]
2771 *) Finish off removing the remaining LHASH function pointer casts.
2772 There should no longer be any prototype-casting required when using
2773 the LHASH abstraction, and any casts that remain are "bugs". See
2774 the callback types and macros at the head of lhash.h for details
2775 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2778 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2779 If /dev/[u]random devices are not available or do not return enough
2780 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2782 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2783 /etc/entropy will be queried once each in this sequence, quering stops
2784 when enough entropy was collected without querying more sockets.
2787 *) Change the Unix RAND_poll() variant to be able to poll several
2788 random devices, as specified by DEVRANDOM, until a sufficient amount
2789 of data has been collected. We spend at most 10 ms on each file
2790 (select timeout) and read in non-blocking mode. DEVRANDOM now
2791 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2792 (previously it was just the string "/dev/urandom"), so on typical
2793 platforms the 10 ms delay will never occur.
2794 Also separate out the Unix variant to its own file, rand_unix.c.
2795 For VMS, there's a currently-empty rand_vms.c.
2798 *) Move OCSP client related routines to ocsp_cl.c. These
2799 provide utility functions which an application needing
2800 to issue a request to an OCSP responder and analyse the
2801 response will typically need: as opposed to those which an
2802 OCSP responder itself would need which will be added later.
2804 OCSP_request_sign() signs an OCSP request with an API similar
2805 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2806 response. OCSP_response_get1_basic() extracts basic response
2807 from response. OCSP_resp_find_status(): finds and extracts status
2808 information from an OCSP_CERTID structure (which will be created
2809 when the request structure is built). These are built from lower
2810 level functions which work on OCSP_SINGLERESP structures but
2811 wont normally be used unless the application wishes to examine
2812 extensions in the OCSP response for example.
2814 Replace nonce routines with a pair of functions.
2815 OCSP_request_add1_nonce() adds a nonce value and optionally
2816 generates a random value. OCSP_check_nonce() checks the
2817 validity of the nonce in an OCSP response.
2820 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2821 This doesn't copy the supplied OCSP_CERTID and avoids the
2822 need to free up the newly created id. Change return type
2823 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2824 This can then be used to add extensions to the request.
2825 Deleted OCSP_request_new(), since most of its functionality
2826 is now in OCSP_REQUEST_new() (and the case insensitive name
2827 clash) apart from the ability to set the request name which
2828 will be added elsewhere.
2831 *) Update OCSP API. Remove obsolete extensions argument from
2832 various functions. Extensions are now handled using the new
2833 OCSP extension code. New simple OCSP HTTP function which
2834 can be used to send requests and parse the response.
2837 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2838 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2839 uses the special reorder version of SET OF to sort the attributes
2840 and reorder them to match the encoded order. This resolves a long
2841 standing problem: a verify on a PKCS7 structure just after signing
2842 it used to fail because the attribute order did not match the
2843 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2844 it uses the received order. This is necessary to tolerate some broken
2845 software that does not order SET OF. This is handled by encoding
2846 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2847 to produce the required SET OF.
2850 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2851 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2852 files to get correct declarations of the ASN.1 item variables.
2855 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2856 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2857 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2858 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2859 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2860 ASN1_ITEM and no wrapper functions.
2863 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2864 replace the old function pointer based I/O routines. Change most of
2865 the *_d2i_bio() and *_d2i_fp() functions to use these.
2868 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2869 lines, recognice more "algorithms" that can be deselected, and make
2870 it complain about algorithm deselection that isn't recognised.
2873 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2874 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2875 to use new functions. Add NO_ASN1_OLD which can be set to remove
2876 some old style ASN1 functions: this can be used to determine if old
2877 code will still work when these eventually go away.
2880 *) New extension functions for OCSP structures, these follow the
2881 same conventions as certificates and CRLs.
2884 *) New function X509V3_add1_i2d(). This automatically encodes and
2885 adds an extension. Its behaviour can be customised with various
2886 flags to append, replace or delete. Various wrappers added for
2887 certifcates and CRLs.
2890 *) Fix to avoid calling the underlying ASN1 print routine when
2891 an extension cannot be parsed. Correct a typo in the
2892 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2895 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2896 entries for variables.
2899 *) Add functionality to apps/openssl.c for detecting locking
2900 problems: As the program is single-threaded, all we have
2901 to do is register a locking callback using an array for
2902 storing which locks are currently held by the program.
2905 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2906 SSL_get_ex_data_X509_STORE_idx(), which is used in
2907 ssl_verify_cert_chain() and thus can be called at any time
2908 during TLS/SSL handshakes so that thread-safety is essential.
2909 Unfortunately, the ex_data design is not at all suited
2910 for multi-threaded use, so it probably should be abolished.
2913 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2914 [Broadcom, tweaked and integrated by Geoff Thorpe]
2916 *) Move common extension printing code to new function
2917 X509V3_print_extensions(). Reorganise OCSP print routines and
2918 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2921 *) New function X509_signature_print() to remove duplication in some
2925 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2926 set (this was treated exactly the same as SET OF previously). This
2927 is used to reorder the STACK representing the structure to match the
2928 encoding. This will be used to get round a problem where a PKCS7
2929 structure which was signed could not be verified because the STACK
2930 order did not reflect the encoded order.
2933 *) Reimplement the OCSP ASN1 module using the new code.
2936 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2937 for its ASN1 operations. The old style function pointers still exist
2938 for now but they will eventually go away.
2941 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2942 completely replaces the old ASN1 functionality with a table driven
2943 encoder and decoder which interprets an ASN1_ITEM structure describing
2944 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2945 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2946 has also been converted to the new form.
2949 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2950 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2951 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2952 for negative moduli.
2955 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2956 of not touching the result's sign bit.
2959 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2963 *) Changed the LHASH code to use prototypes for callbacks, and created
2964 macros to declare and implement thin (optionally static) functions
2965 that provide type-safety and avoid function pointer casting for the
2966 type-specific callbacks.
2969 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2971 [Veers Staats <staatsvr@asc.hpc.mil>,
2972 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2974 *) Reformat the FAQ so the different questions and answers can be divided
2975 in sections depending on the subject.
2978 *) Have the zlib compression code load ZLIB.DLL dynamically under
2982 *) New function BN_mod_sqrt for computing square roots modulo a prime
2983 (using the probabilistic Tonelli-Shanks algorithm unless
2984 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2985 be handled deterministically).
2986 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2988 *) Make BN_mod_inverse faster by explicitly handling small quotients
2989 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2990 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2993 *) New function BN_kronecker.
2996 *) Fix BN_gcd so that it works on negative inputs; the result is
2997 positive unless both parameters are zero.
2998 Previously something reasonably close to an infinite loop was
2999 possible because numbers could be growing instead of shrinking
3000 in the implementation of Euclid's algorithm.
3003 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3004 sign of the number in question.
3006 Fix BN_is_word(a,w) to work correctly for w == 0.
3008 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3009 because its test if the absolute value of 'a' equals 'w'.
3010 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3011 it exists mostly for use in the implementations of BN_is_zero(),
3012 BN_is_one(), and BN_is_word().
3015 *) New function BN_swap.
3018 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3019 the exponentiation functions are more likely to produce reasonable
3020 results on negative inputs.
3023 *) Change BN_mod_mul so that the result is always non-negative.
3024 Previously, it could be negative if one of the factors was negative;
3025 I don't think anyone really wanted that behaviour.
3028 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3029 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3030 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3031 and add new functions:
3040 BN_mod_lshift1_quick
3044 These functions always generate non-negative results.
3046 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3047 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3049 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3050 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3051 be reduced modulo m.
3052 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3055 The following entry accidentily appeared in the CHANGES file
3056 distributed with OpenSSL 0.9.7. The modifications described in
3057 it do *not* apply to OpenSSL 0.9.7.
3059 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3060 was actually never needed) and in BN_mul(). The removal in BN_mul()
3061 required a small change in bn_mul_part_recursive() and the addition
3062 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3063 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3064 bn_sub_words() and bn_add_words() except they take arrays with
3069 *) In 'openssl passwd', verify passwords read from the terminal
3070 unless the '-salt' option is used (which usually means that
3071 verification would just waste user's time since the resulting
3072 hash is going to be compared with some given password hash)
3073 or the new '-noverify' option is used.
3075 This is an incompatible change, but it does not affect
3076 non-interactive use of 'openssl passwd' (passwords on the command
3077 line, '-stdin' option, '-in ...' option) and thus should not
3081 *) Remove all references to RSAref, since there's no more need for it.
3084 *) Make DSO load along a path given through an environment variable
3085 (SHLIB_PATH) with shl_load().
3088 *) Constify the ENGINE code as a result of BIGNUM constification.
3089 Also constify the RSA code and most things related to it. In a
3090 few places, most notable in the depth of the ASN.1 code, ugly
3091 casts back to non-const were required (to be solved at a later
3095 *) Make it so the openssl application has all engines loaded by default.
3098 *) Constify the BIGNUM routines a little more.
3101 *) Add the following functions:
3103 ENGINE_load_cswift()
3105 ENGINE_load_atalla()
3107 ENGINE_load_builtin_engines()
3109 That way, an application can itself choose if external engines that
3110 are built-in in OpenSSL shall ever be used or not. The benefit is
3111 that applications won't have to be linked with libdl or other dso
3112 libraries unless it's really needed.
3114 Changed 'openssl engine' to load all engines on demand.
3115 Changed the engine header files to avoid the duplication of some
3116 declarations (they differed!).
3119 *) 'openssl engine' can now list capabilities.
3122 *) Better error reporting in 'openssl engine'.
3125 *) Never call load_dh_param(NULL) in s_server.
3128 *) Add engine application. It can currently list engines by name and
3129 identity, and test if they are actually available.
3132 *) Improve RPM specification file by forcing symbolic linking and making
3133 sure the installed documentation is also owned by root.root.
3134 [Damien Miller <djm@mindrot.org>]
3136 *) Give the OpenSSL applications more possibilities to make use of
3137 keys (public as well as private) handled by engines.
3140 *) Add OCSP code that comes from CertCo.
3143 *) Add VMS support for the Rijndael code.
3146 *) Added untested support for Nuron crypto accelerator.
3149 *) Add support for external cryptographic devices. This code was
3150 previously distributed separately as the "engine" branch.
3151 [Geoff Thorpe, Richard Levitte]
3153 *) Rework the filename-translation in the DSO code. It is now possible to
3154 have far greater control over how a "name" is turned into a filename
3155 depending on the operating environment and any oddities about the
3156 different shared library filenames on each system.
3159 *) Support threads on FreeBSD-elf in Configure.
3162 *) Fix for SHA1 assembly problem with MASM: it produces
3163 warnings about corrupt line number information when assembling
3164 with debugging information. This is caused by the overlapping
3166 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3169 NCONF_get_number() has no error checking at all. As a replacement,
3170 NCONF_get_number_e() is defined (_e for "error checking") and is
3171 promoted strongly. The old NCONF_get_number is kept around for
3172 binary backward compatibility.
3173 Make it possible for methods to load from something other than a BIO,
3174 by providing a function pointer that is given a name instead of a BIO.
3175 For example, this could be used to load configuration data from an
3179 *) Fix for non blocking accept BIOs. Added new I/O special reason
3180 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3181 with non blocking I/O was not possible because no retry code was
3182 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3186 *) Added the beginnings of Rijndael support.
3189 *) Fix for bug in DirectoryString mask setting. Add support for
3190 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3191 to allow certificate printing to more controllable, additional
3192 'certopt' option to 'x509' to allow new printing options to be
3196 *) Clean old EAY MD5 hack from e_os.h.
3199 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3201 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3202 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3203 [Joe Orton, Steve Henson]
3205 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3207 *) Fix additional bug revealed by the NISCC test suite:
3209 Stop bug triggering large recursion when presented with
3210 certain ASN.1 tags (CVE-2003-0851)
3213 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3215 *) Fix various bugs revealed by running the NISCC test suite:
3217 Stop out of bounds reads in the ASN1 code when presented with
3218 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3220 If verify callback ignores invalid public key errors don't try to check
3221 certificate signature with the NULL public key.
3225 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3226 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3230 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3231 extra data after the compression methods not only for TLS 1.0
3232 but also for SSL 3.0 (as required by the specification).
3233 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3235 *) Change X509_certificate_type() to mark the key as exported/exportable
3236 when it's 512 *bits* long, not 512 bytes.
3239 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3241 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3242 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3243 a protocol version number mismatch like a decryption error
3244 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3247 *) Turn on RSA blinding by default in the default implementation
3248 to avoid a timing attack. Applications that don't want it can call
3249 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3250 They would be ill-advised to do so in most cases.
3251 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3253 *) Change RSA blinding code so that it works when the PRNG is not
3254 seeded (in this case, the secret RSA exponent is abused as
3255 an unpredictable seed -- if it is not unpredictable, there
3256 is no point in blinding anyway). Make RSA blinding thread-safe
3257 by remembering the creator's thread ID in rsa->blinding and
3258 having all other threads use local one-time blinding factors
3259 (this requires more computation than sharing rsa->blinding, but
3260 avoids excessive locking; and if an RSA object is not shared
3261 between threads, blinding will still be very fast).
3264 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3266 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3267 via timing by performing a MAC computation even if incorrrect
3268 block cipher padding has been found. This is a countermeasure
3269 against active attacks where the attacker has to distinguish
3270 between bad padding and a MAC verification error. (CVE-2003-0078)
3272 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3273 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3274 Martin Vuagnoux (EPFL, Ilion)]
3276 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3278 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3279 memory from it's contents. This is done with a counter that will
3280 place alternating values in each byte. This can be used to solve
3281 two issues: 1) the removal of calls to memset() by highly optimizing
3282 compilers, and 2) cleansing with other values than 0, since those can
3283 be read through on certain media, for example a swap space on disk.
3286 *) Bugfix: client side session caching did not work with external caching,
3287 because the session->cipher setting was not restored when reloading
3288 from the external cache. This problem was masked, when
3289 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3290 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3293 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3294 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3295 [Zeev Lieber <zeev-l@yahoo.com>]
3297 *) Undo an undocumented change introduced in 0.9.6e which caused
3298 repeated calls to OpenSSL_add_all_ciphers() and
3299 OpenSSL_add_all_digests() to be ignored, even after calling
3303 *) Change the default configuration reader to deal with last line not
3304 being properly terminated.
3307 *) Change X509_NAME_cmp() so it applies the special rules on handling
3308 DN values that are of type PrintableString, as well as RDNs of type
3309 emailAddress where the value has the type ia5String.
3310 [stefank@valicert.com via Richard Levitte]
3312 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3313 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3314 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3315 the bitwise-OR of the two for use by the majority of applications
3316 wanting this behaviour, and update the docs. The documented
3317 behaviour and actual behaviour were inconsistent and had been
3318 changing anyway, so this is more a bug-fix than a behavioural
3320 [Geoff Thorpe, diagnosed by Nadav Har'El]
3322 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3323 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3326 *) Fix initialization code race conditions in
3327 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3328 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3329 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3330 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3331 ssl2_get_cipher_by_char(),
3332 ssl3_get_cipher_by_char().
3333 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3335 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3336 the cached sessions are flushed, as the remove_cb() might use ex_data
3337 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3338 (see [openssl.org #212]).
3339 [Geoff Thorpe, Lutz Jaenicke]
3341 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3342 length, instead of the encoding length to d2i_ASN1_OBJECT.
3345 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3347 *) [In 0.9.6g-engine release:]
3348 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3349 [Lynn Gazis <lgazis@rainbow.com>]
3351 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3353 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3354 and get fix the header length calculation.
3355 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3356 Alon Kantor <alonk@checkpoint.com> (and others),
3359 *) Use proper error handling instead of 'assertions' in buffer
3360 overflow checks added in 0.9.6e. This prevents DoS (the
3361 assertions could call abort()).
3362 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3364 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3366 *) Add various sanity checks to asn1_get_length() to reject
3367 the ASN1 length bytes if they exceed sizeof(long), will appear
3368 negative or the content length exceeds the length of the
3370 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3372 *) Fix cipher selection routines: ciphers without encryption had no flags
3373 for the cipher strength set and where therefore not handled correctly
3374 by the selection routines (PR #130).
3377 *) Fix EVP_dsa_sha macro.
3381 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3382 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3383 that was added in OpenSSL 0.9.6d.
3385 As the countermeasure turned out to be incompatible with some
3386 broken SSL implementations, the new option is part of SSL_OP_ALL.
3387 SSL_OP_ALL is usually employed when compatibility with weird SSL
3388 implementations is desired (e.g. '-bugs' option to 's_client' and
3389 's_server'), so the new option is automatically set in many
3393 *) Changes in security patch:
3395 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3396 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3397 Air Force Materiel Command, USAF, under agreement number
3400 *) Add various sanity checks to asn1_get_length() to reject
3401 the ASN1 length bytes if they exceed sizeof(long), will appear
3402 negative or the content length exceeds the length of the
3403 supplied buffer. (CVE-2002-0659)
3404 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3406 *) Assertions for various potential buffer overflows, not known to
3408 [Ben Laurie (CHATS)]
3410 *) Various temporary buffers to hold ASCII versions of integers were
3411 too small for 64 bit platforms. (CVE-2002-0655)
3412 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3414 *) Remote buffer overflow in SSL3 protocol - an attacker could
3415 supply an oversized session ID to a client. (CVE-2002-0656)
3416 [Ben Laurie (CHATS)]
3418 *) Remote buffer overflow in SSL2 protocol - an attacker could
3419 supply an oversized client master key. (CVE-2002-0656)
3420 [Ben Laurie (CHATS)]
3422 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3424 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3425 encoded as NULL) with id-dsa-with-sha1.
3426 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3428 *) Check various X509_...() return values in apps/req.c.
3429 [Nils Larsch <nla@trustcenter.de>]
3431 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3432 an end-of-file condition would erronously be flagged, when the CRLF
3433 was just at the end of a processed block. The bug was discovered when
3434 processing data through a buffering memory BIO handing the data to a
3435 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3436 <ptsekov@syntrex.com> and Nedelcho Stanev.
3439 *) Implement a countermeasure against a vulnerability recently found
3440 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3441 before application data chunks to avoid the use of known IVs
3442 with data potentially chosen by the attacker.
3445 *) Fix length checks in ssl3_get_client_hello().
3448 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3449 to prevent ssl3_read_internal() from incorrectly assuming that
3450 ssl3_read_bytes() found application data while handshake
3451 processing was enabled when in fact s->s3->in_read_app_data was
3452 merely automatically cleared during the initial handshake.
3453 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3455 *) Fix object definitions for Private and Enterprise: they were not
3456 recognized in their shortname (=lowercase) representation. Extend
3457 obj_dat.pl to issue an error when using undefined keywords instead
3458 of silently ignoring the problem (Svenning Sorensen
3459 <sss@sss.dnsalias.net>).
3462 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3463 generators, i.e. generators other than 2 and 5. (Previously, the
3464 code did not properly initialise the 'add' and 'rem' values to
3465 BN_generate_prime().)
3467 In the new general case, we do not insist that 'generator' is
3468 actually a primitive root: This requirement is rather pointless;
3469 a generator of the order-q subgroup is just as good, if not
3473 *) Map new X509 verification errors to alerts. Discovered and submitted by
3474 Tom Wu <tom@arcot.com>.
3477 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3478 returning non-zero before the data has been completely received
3479 when using non-blocking I/O.
3480 [Bodo Moeller; problem pointed out by John Hughes]
3482 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3483 [Ben Laurie, Lutz Jaenicke]
3485 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3486 Yoram Zahavi <YoramZ@gilian.com>).
3489 *) Add information about CygWin 1.3 and on, and preserve proper
3490 configuration for the versions before that.
3491 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3493 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3494 check whether we deal with a copy of a session and do not delete from
3495 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3496 <izhar@checkpoint.com>.
3499 *) Do not store session data into the internal session cache, if it
3500 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3501 flag is set). Proposed by Aslam <aslam@funk.com>.
3504 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3508 *) [In 0.9.6d-engine release:]
3509 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3510 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3512 *) Add the configuration target linux-s390x.
3513 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3515 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3516 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3517 variable as an indication that a ClientHello message has been
3518 received. As the flag value will be lost between multiple
3519 invocations of ssl3_accept when using non-blocking I/O, the
3520 function may not be aware that a handshake has actually taken
3521 place, thus preventing a new session from being added to the
3524 To avoid this problem, we now set s->new_session to 2 instead of
3525 using a local variable.
3526 [Lutz Jaenicke, Bodo Moeller]
3528 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3529 if the SSL_R_LENGTH_MISMATCH error is detected.
3530 [Geoff Thorpe, Bodo Moeller]
3532 *) New 'shared_ldflag' column in Configure platform table.
3535 *) Fix EVP_CIPHER_mode macro.
3536 ["Dan S. Camper" <dan@bti.net>]
3538 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3539 type, we must throw them away by setting rr->length to 0.
3540 [D P Chang <dpc@qualys.com>]
3542 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3544 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3545 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3546 worked incorrectly for those cases where range = 10..._2 and
3547 3*range is two bits longer than range.)
3550 *) Only add signing time to PKCS7 structures if it is not already
3554 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3555 OBJ_ld_ce should be OBJ_id_ce.
3556 Also some ip-pda OIDs in crypto/objects/objects.txt were
3557 incorrect (cf. RFC 3039).
3558 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3560 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3561 returns early because it has nothing to do.
3562 [Andy Schneider <andy.schneider@bjss.co.uk>]
3564 *) [In 0.9.6c-engine release:]
3565 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3566 [Andy Schneider <andy.schneider@bjss.co.uk>]
3568 *) [In 0.9.6c-engine release:]
3569 Add support for Cryptographic Appliance's keyserver technology.
3570 (Use engine 'keyclient')
3571 [Cryptographic Appliances and Geoff Thorpe]
3573 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3574 is called via tools/c89.sh because arguments have to be
3575 rearranged (all '-L' options must appear before the first object
3577 [Richard Shapiro <rshapiro@abinitio.com>]
3579 *) [In 0.9.6c-engine release:]
3580 Add support for Broadcom crypto accelerator cards, backported
3582 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3584 *) [In 0.9.6c-engine release:]
3585 Add support for SureWare crypto accelerator cards from
3586 Baltimore Technologies. (Use engine 'sureware')
3587 [Baltimore Technologies and Mark Cox]
3589 *) [In 0.9.6c-engine release:]
3590 Add support for crypto accelerator cards from Accelerated
3591 Encryption Processing, www.aep.ie. (Use engine 'aep')
3592 [AEP Inc. and Mark Cox]
3594 *) Add a configuration entry for gcc on UnixWare.
3595 [Gary Benson <gbenson@redhat.com>]
3597 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3598 messages are stored in a single piece (fixed-length part and
3599 variable-length part combined) and fix various bugs found on the way.
3602 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3603 instead. BIO_gethostbyname() does not know what timeouts are
3604 appropriate, so entries would stay in cache even when they have
3606 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3608 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3609 faced with a pathologically small ClientHello fragment that does
3610 not contain client_version: Instead of aborting with an error,
3611 simply choose the highest available protocol version (i.e.,
3612 TLS 1.0 unless it is disabled). In practice, ClientHello
3613 messages are never sent like this, but this change gives us
3614 strictly correct behaviour at least for TLS.
3617 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3618 never resets s->method to s->ctx->method when called from within
3619 one of the SSL handshake functions.
3620 [Bodo Moeller; problem pointed out by Niko Baric]
3622 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3623 (sent using the client's version number) if client_version is
3624 smaller than the protocol version in use. Also change
3625 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3626 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3627 the client will at least see that alert.
3630 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3634 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3635 client receives HelloRequest while in a handshake.
3636 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3638 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3639 should end in 'break', not 'goto end' which circuments various
3640 cleanups done in state SSL_ST_OK. But session related stuff
3641 must be disabled for SSL_ST_OK in the case that we just sent a
3644 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3645 before just sending a HelloRequest.
3646 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3648 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3649 reveal whether illegal block cipher padding was found or a MAC
3650 verification error occured. (Neither SSLerr() codes nor alerts
3651 are directly visible to potential attackers, but the information
3652 may leak via logfiles.)
3654 Similar changes are not required for the SSL 2.0 implementation
3655 because the number of padding bytes is sent in clear for SSL 2.0,
3656 and the extra bytes are just ignored. However ssl/s2_pkt.c
3657 failed to verify that the purported number of padding bytes is in
3661 *) Add OpenUNIX-8 support including shared libraries
3662 (Boyd Lynn Gerber <gerberb@zenez.com>).
3665 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3666 'wristwatch attack' using huge encoding parameters (cf.
3667 James H. Manger's CRYPTO 2001 paper). Note that the
3668 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3669 encoding parameters and hence was not vulnerable.
3672 *) BN_sqr() bug fix.
3673 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3675 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3676 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3677 followed by modular reduction.
3678 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3680 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3681 equivalent based on BN_pseudo_rand() instead of BN_rand().
3684 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3685 This function was broken, as the check for a new client hello message
3686 to handle SGC did not allow these large messages.
3687 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3690 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3693 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3694 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3697 *) Rework the configuration and shared library support for Tru64 Unix.
3698 The configuration part makes use of modern compiler features and
3699 still retains old compiler behavior for those that run older versions
3700 of the OS. The shared library support part includes a variant that
3701 uses the RPATH feature, and is available through the special
3702 configuration target "alpha-cc-rpath", which will never be selected
3704 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3706 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3707 with the same message size as in ssl3_get_certificate_request().
3708 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3709 messages might inadvertently be reject as too long.
3710 [Petr Lampa <lampa@fee.vutbr.cz>]
3712 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3715 *) Modified SSL library such that the verify_callback that has been set
3716 specificly for an SSL object with SSL_set_verify() is actually being
3717 used. Before the change, a verify_callback set with this function was
3718 ignored and the verify_callback() set in the SSL_CTX at the time of
3719 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3720 to allow the necessary settings.
3723 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3724 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3725 done automatically (in contradiction to the requirements of the C
3726 standard). This made problems when used from OpenSSH.
3729 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3730 dh->length and always used
3732 BN_rand_range(priv_key, dh->p).
3734 BN_rand_range() is not necessary for Diffie-Hellman, and this
3735 specific range makes Diffie-Hellman unnecessarily inefficient if
3736 dh->length (recommended exponent length) is much smaller than the
3737 length of dh->p. We could use BN_rand_range() if the order of
3738 the subgroup was stored in the DH structure, but we only have
3743 BN_rand(priv_key, l, ...)
3745 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3751 RSA_eay_public_encrypt
3752 RSA_eay_private_decrypt
3753 RSA_eay_private_encrypt (signing)
3754 RSA_eay_public_decrypt (signature verification)
3756 (default implementations for RSA_public_encrypt,
3757 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3758 always reject numbers >= n.
3761 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3762 to synchronize access to 'locking_thread'. This is necessary on
3763 systems where access to 'locking_thread' (an 'unsigned long'
3764 variable) is not atomic.
3767 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3768 *before* setting the 'crypto_lock_rand' flag. The previous code had
3769 a race condition if 0 is a valid thread ID.
3770 [Travis Vitek <vitek@roguewave.com>]
3772 *) Add support for shared libraries under Irix.
3773 [Albert Chin-A-Young <china@thewrittenword.com>]
3775 *) Add configuration option to build on Linux on both big-endian and
3777 [Ralf Baechle <ralf@uni-koblenz.de>]
3779 *) Add the possibility to create shared libraries on HP-UX.
3782 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3784 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3785 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3786 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3787 PRNG state recovery was possible based on the output of
3788 one PRNG request appropriately sized to gain knowledge on
3789 'md' followed by enough consecutive 1-byte PRNG requests
3790 to traverse all of 'state'.
3792 1. When updating 'md_local' (the current thread's copy of 'md')
3793 during PRNG output generation, hash all of the previous
3794 'md_local' value, not just the half used for PRNG output.
3796 2. Make the number of bytes from 'state' included into the hash
3797 independent from the number of PRNG bytes requested.
3799 The first measure alone would be sufficient to avoid
3800 Markku-Juhani's attack. (Actually it had never occurred
3801 to me that the half of 'md_local' used for chaining was the
3802 half from which PRNG output bytes were taken -- I had always
3803 assumed that the secret half would be used.) The second
3804 measure makes sure that additional data from 'state' is never
3805 mixed into 'md_local' in small portions; this heuristically
3806 further strengthens the PRNG.
3809 *) Fix crypto/bn/asm/mips3.s.
3812 *) When only the key is given to "enc", the IV is undefined. Print out
3813 an error message in this case.
3816 *) Handle special case when X509_NAME is empty in X509 printing routines.
3819 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3820 positive and less than q.
3823 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3824 used: it isn't thread safe and the add_lock_callback should handle
3826 [Paul Rose <Paul.Rose@bridge.com>]
3828 *) Verify that incoming data obeys the block size in
3829 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3833 [Ulf Möller, Bodo Möller]
3835 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3836 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3837 when fixing the server behaviour for backwards-compatible 'client
3838 hello' messages. (Note that the attack is impractical against
3839 SSL 3.0 and TLS 1.0 anyway because length and version checking
3840 means that the probability of guessing a valid ciphertext is
3841 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3844 Before 0.9.5, the countermeasure (hide the error by generating a
3845 random 'decryption result') did not work properly because
3846 ERR_clear_error() was missing, meaning that SSL_get_error() would
3847 detect the supposedly ignored error.
3849 Both problems are now fixed.
3852 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3853 (previously it was 1024).
3856 *) Fix for compatibility mode trust settings: ignore trust settings
3857 unless some valid trust or reject settings are present.
3860 *) Fix for blowfish EVP: its a variable length cipher.
3863 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3864 parameters in DSA public key structures and return an error in the
3865 DSA routines if parameters are absent.
3868 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3869 in the current directory if neither $RANDFILE nor $HOME was set.
3870 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3871 caused some confusion to Windows users who haven't defined $HOME.
3872 Thus RAND_file_name() is changed again: e_os.h can define a
3873 DEFAULT_HOME, which will be used if $HOME is not set.
3874 For Windows, we use "C:"; on other platforms, we still require
3875 environment variables.
3877 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3878 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3879 having multiple threads call RAND_poll() concurrently.
3882 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3883 combination of a flag and a thread ID variable.
3884 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3885 flag), *other* threads can enter ssleay_add_bytes without obeying
3886 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3887 that they do not hold after the first thread unsets add_do_not_lock).
3890 *) Change bctest again: '-x' expressions are not available in all
3894 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3896 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3897 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3899 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3900 the default extension for executables, if any. Also, make the perl
3901 scripts that use symlink() to test if it really exists and use "cp"
3902 if it doesn't. All this made OpenSSL compilable and installable in
3906 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3907 If SEQUENCE is length is indefinite just set c->slen to the total
3908 amount of data available.
3909 [Steve Henson, reported by shige@FreeBSD.org]
3910 [This change does not apply to 0.9.7.]
3912 *) Change bctest to avoid here-documents inside command substitution
3913 (workaround for FreeBSD /bin/sh bug).
3914 For compatibility with Ultrix, avoid shell functions (introduced
3915 in the bctest version that searches along $PATH).
3918 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3919 with des_encrypt() defined on some operating systems, like Solaris
3923 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3924 On the Importance of Eliminating Errors in Cryptographic
3925 Computations, J. Cryptology 14 (2001) 2, 101-119,
3926 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3929 *) MIPS assembler BIGNUM division bug fix.
3932 *) Disabled incorrect Alpha assembler code.
3935 *) Fix PKCS#7 decode routines so they correctly update the length
3936 after reading an EOC for the EXPLICIT tag.
3938 [This change does not apply to 0.9.7.]
3940 *) Fix bug in PKCS#12 key generation routines. This was triggered
3941 if a 3DES key was generated with a 0 initial byte. Include
3942 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3943 (but broken) behaviour.
3946 *) Enhance bctest to search for a working bc along $PATH and print
3948 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3950 *) Fix memory leaks in err.c: free err_data string if necessary;
3951 don't write to the wrong index in ERR_set_error_data.
3954 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3958 *) Replace rdtsc with _emit statements for VC++ version 5.
3959 [Jeremy Cooper <jeremy@baymoo.org>]
3961 *) Make it possible to reuse SSLv2 sessions.
3964 *) In copy_email() check for >= 0 as a return value for
3965 X509_NAME_get_index_by_NID() since 0 is a valid index.
3966 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3968 *) Avoid coredump with unsupported or invalid public keys by checking if
3969 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3970 PKCS7_verify() fails with non detached data.
3973 *) Don't use getenv in library functions when run as setuid/setgid.
3974 New function OPENSSL_issetugid().
3977 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3978 due to incorrect handling of multi-threading:
3980 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3982 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3984 3. Count how many times MemCheck_off() has been called so that
3985 nested use can be treated correctly. This also avoids
3986 inband-signalling in the previous code (which relied on the
3987 assumption that thread ID 0 is impossible).
3990 *) Add "-rand" option also to s_client and s_server.
3993 *) Fix CPU detection on Irix 6.x.
3994 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3995 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3997 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4000 [This change does not apply to 0.9.7.]
4002 *) Use the cached encoding of an X509_NAME structure rather than
4003 copying it. This is apparently the reason for the libsafe "errors"
4004 but the code is actually correct.
4007 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4008 Bleichenbacher's DSA attack.
4009 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4010 to be set and top=0 forces the highest bit to be set; top=-1 is new
4011 and leaves the highest bit random.
4012 [Ulf Moeller, Bodo Moeller]
4014 *) In the NCONF_...-based implementations for CONF_... queries
4015 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4016 a temporary CONF structure with the data component set to NULL
4017 (which gives segmentation faults in lh_retrieve).
4018 Instead, use NULL for the CONF pointer in CONF_get_string and
4019 CONF_get_number (which may use environment variables) and directly
4020 return NULL from CONF_get_section.
4023 *) Fix potential buffer overrun for EBCDIC.
4026 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4027 keyUsage if basicConstraints absent for a CA.
4030 *) Make SMIME_write_PKCS7() write mail header values with a format that
4031 is more generally accepted (no spaces before the semicolon), since
4032 some programs can't parse those values properly otherwise. Also make
4033 sure BIO's that break lines after each write do not create invalid
4037 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4038 macros previously used would not encode an empty SEQUENCE OF
4039 and break the signature.
4041 [This change does not apply to 0.9.7.]
4043 *) Zero the premaster secret after deriving the master secret in
4047 *) Add some EVP_add_digest_alias registrations (as found in
4048 OpenSSL_add_all_digests()) to SSL_library_init()
4049 aka OpenSSL_add_ssl_algorithms(). This provides improved
4050 compatibility with peers using X.509 certificates
4051 with unconventional AlgorithmIdentifier OIDs.
4054 *) Fix for Irix with NO_ASM.
4055 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4057 *) ./config script fixes.
4058 [Ulf Moeller, Richard Levitte]
4060 *) Fix 'openssl passwd -1'.
4063 *) Change PKCS12_key_gen_asc() so it can cope with non null
4064 terminated strings whose length is passed in the passlen
4065 parameter, for example from PEM callbacks. This was done
4066 by adding an extra length parameter to asc2uni().
4067 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4069 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4070 call failed, free the DSA structure.
4073 *) Fix to uni2asc() to cope with zero length Unicode strings.
4074 These are present in some PKCS#12 files.
4077 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4078 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4079 when writing a 32767 byte record.
4080 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4082 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4083 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4085 (RSA objects have a reference count access to which is protected
4086 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4087 so they are meant to be shared between threads.)
4088 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4089 "Reddie, Steven" <Steven.Reddie@ca.com>]
4091 *) Fix a deadlock in CRYPTO_mem_leaks().
4094 *) Use better test patterns in bntest.
4097 *) rand_win.c fix for Borland C.
4100 *) BN_rshift bugfix for n == 0.
4103 *) Add a 'bctest' script that checks for some known 'bc' bugs
4104 so that 'make test' does not abort just because 'bc' is broken.
4107 *) Store verify_result within SSL_SESSION also for client side to
4108 avoid potential security hole. (Re-used sessions on the client side
4109 always resulted in verify_result==X509_V_OK, not using the original
4110 result of the server certificate verification.)
4113 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4114 SSL3_RT_APPLICATION_DATA, return 0.
4115 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4119 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4120 releases, have been re-implemented by renaming the previous
4121 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4122 and ssl3_read_internal, respectively, and adding 'peek' parameters
4123 to them. The new ssl[23]_{read,peek} functions are calls to
4124 ssl[23]_read_internal with the 'peek' flag set appropriately.
4125 A 'peek' parameter has also been added to ssl3_read_bytes, which
4126 does the actual work for ssl3_read_internal.
4129 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4130 the method-specific "init()" handler. Also clean up ex_data after
4131 calling the method-specific "finish()" handler. Previously, this was
4132 happening the other way round.
4135 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4136 The previous value, 12, was not always sufficient for BN_mod_exp().
4139 *) Make sure that shared libraries get the internal name engine with
4140 the full version number and not just 0. This should mark the
4141 shared libraries as not backward compatible. Of course, this should
4142 be changed again when we can guarantee backward binary compatibility.
4145 *) Fix typo in get_cert_by_subject() in by_dir.c
4146 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4148 *) Rework the system to generate shared libraries:
4150 - Make note of the expected extension for the shared libraries and
4151 if there is a need for symbolic links from for example libcrypto.so.0
4152 to libcrypto.so.0.9.7. There is extended info in Configure for
4155 - Make as few rebuilds of the shared libraries as possible.
4157 - Still avoid linking the OpenSSL programs with the shared libraries.
4159 - When installing, install the shared libraries separately from the
4163 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4165 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4166 and not in SSL_clear because the latter is also used by the
4167 accept/connect functions; previously, the settings made by
4168 SSL_set_read_ahead would be lost during the handshake.
4169 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4171 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4172 Previously, it would create entries for disableed algorithms no
4176 *) Added several new manual pages for SSL_* function.
4179 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4181 *) In ssl23_get_client_hello, generate an error message when faced
4182 with an initial SSL 3.0/TLS record that is too small to contain the
4183 first two bytes of the ClientHello message, i.e. client_version.
4184 (Note that this is a pathologic case that probably has never happened
4185 in real life.) The previous approach was to use the version number
4186 from the record header as a substitute; but our protocol choice
4187 should not depend on that one because it is not authenticated
4188 by the Finished messages.
4191 *) More robust randomness gathering functions for Windows.
4192 [Jeffrey Altman <jaltman@columbia.edu>]
4194 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4195 not set then we don't setup the error code for issuer check errors
4196 to avoid possibly overwriting other errors which the callback does
4197 handle. If an application does set the flag then we assume it knows
4198 what it is doing and can handle the new informational codes
4202 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4203 a general "ANY" type, as such it should be able to decode anything
4204 including tagged types. However it didn't check the class so it would
4205 wrongly interpret tagged types in the same way as their universal
4206 counterpart and unknown types were just rejected. Changed so that the
4207 tagged and unknown types are handled in the same way as a SEQUENCE:
4208 that is the encoding is stored intact. There is also a new type
4209 "V_ASN1_OTHER" which is used when the class is not universal, in this
4210 case we have no idea what the actual type is so we just lump them all
4214 *) On VMS, stdout may very well lead to a file that is written to
4215 in a record-oriented fashion. That means that every write() will
4216 write a separate record, which will be read separately by the
4217 programs trying to read from it. This can be very confusing.
4219 The solution is to put a BIO filter in the way that will buffer
4220 text until a linefeed is reached, and then write everything a
4221 line at a time, so every record written will be an actual line,
4222 not chunks of lines and not (usually doesn't happen, but I've
4223 seen it once) several lines in one record. BIO_f_linebuffer() is
4226 Currently, it's a VMS-only method, because that's where it has
4227 been tested well enough.
4230 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4231 it can return incorrect results.
4232 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4233 but it was in 0.9.6-beta[12].)
4236 *) Disable the check for content being present when verifying detached
4237 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4238 include zero length content when signing messages.
4241 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4242 BIO_ctrl (for BIO pairs).
4245 *) Add DSO method for VMS.
4248 *) Bug fix: Montgomery multiplication could produce results with the
4252 *) Add RPM specification openssl.spec and modify it to build three
4253 packages. The default package contains applications, application
4254 documentation and run-time libraries. The devel package contains
4255 include files, static libraries and function documentation. The
4256 doc package contains the contents of the doc directory. The original
4257 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4260 *) Add a large number of documentation files for many SSL routines.
4261 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4263 *) Add a configuration entry for Sony News 4.
4264 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4266 *) Don't set the two most significant bits to one when generating a
4267 random number < q in the DSA library.
4270 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4271 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4272 the underlying transport is blocking) if a handshake took place.
4273 (The default behaviour is needed by applications such as s_client
4274 and s_server that use select() to determine when to use SSL_read;
4275 but for applications that know in advance when to expect data, it
4276 just makes things more complicated.)
4279 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4283 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4284 work better on such systems.
4285 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4287 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4288 Update PKCS12_parse() so it copies the friendlyName and the
4289 keyid to the certificates aux info.
4292 *) Fix bug in PKCS7_verify() which caused an infinite loop
4293 if there was more than one signature.
4294 [Sven Uszpelkat <su@celocom.de>]
4296 *) Major change in util/mkdef.pl to include extra information
4297 about each symbol, as well as presentig variables as well
4298 as functions. This change means that there's n more need
4299 to rebuild the .num files when some algorithms are excluded.
4302 *) Allow the verify time to be set by an application,
4303 rather than always using the current time.
4306 *) Phase 2 verify code reorganisation. The certificate
4307 verify code now looks up an issuer certificate by a
4308 number of criteria: subject name, authority key id
4309 and key usage. It also verifies self signed certificates
4310 by the same criteria. The main comparison function is
4311 X509_check_issued() which performs these checks.
4313 Lot of changes were necessary in order to support this
4314 without completely rewriting the lookup code.
4316 Authority and subject key identifier are now cached.
4318 The LHASH 'certs' is X509_STORE has now been replaced
4319 by a STACK_OF(X509_OBJECT). This is mainly because an
4320 LHASH can't store or retrieve multiple objects with
4321 the same hash value.
4323 As a result various functions (which were all internal
4324 use only) have changed to handle the new X509_STORE
4325 structure. This will break anything that messed round
4326 with X509_STORE internally.
4328 The functions X509_STORE_add_cert() now checks for an
4329 exact match, rather than just subject name.
4331 The X509_STORE API doesn't directly support the retrieval
4332 of multiple certificates matching a given criteria, however
4333 this can be worked round by performing a lookup first
4334 (which will fill the cache with candidate certificates)
4335 and then examining the cache for matches. This is probably
4336 the best we can do without throwing out X509_LOOKUP
4337 entirely (maybe later...).
4339 The X509_VERIFY_CTX structure has been enhanced considerably.
4341 All certificate lookup operations now go via a get_issuer()
4342 callback. Although this currently uses an X509_STORE it
4343 can be replaced by custom lookups. This is a simple way
4344 to bypass the X509_STORE hackery necessary to make this
4345 work and makes it possible to use more efficient techniques
4346 in future. A very simple version which uses a simple
4347 STACK for its trusted certificate store is also provided
4348 using X509_STORE_CTX_trusted_stack().
4350 The verify_cb() and verify() callbacks now have equivalents
4351 in the X509_STORE_CTX structure.
4353 X509_STORE_CTX also has a 'flags' field which can be used
4354 to customise the verify behaviour.
4357 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4358 excludes S/MIME capabilities.
4361 *) When a certificate request is read in keep a copy of the
4362 original encoding of the signed data and use it when outputing
4363 again. Signatures then use the original encoding rather than
4364 a decoded, encoded version which may cause problems if the
4365 request is improperly encoded.
4368 *) For consistency with other BIO_puts implementations, call
4369 buffer_write(b, ...) directly in buffer_puts instead of calling
4372 In BIO_puts, increment b->num_write as in BIO_write.
4373 [Peter.Sylvester@EdelWeb.fr]
4375 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4376 BN_zero, we may not return a BIGNUM with an array consisting of
4380 *) Avoid calling abort() from within the library when problems are
4381 detected, except if preprocessor symbols have been defined
4382 (such as REF_CHECK, BN_DEBUG etc.).
4385 *) New openssl application 'rsautl'. This utility can be
4386 used for low level RSA operations. DER public key
4387 BIO/fp routines also added.
4390 *) New Configure entry and patches for compiling on QNX 4.
4391 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4393 *) A demo state-machine implementation was sponsored by
4394 Nuron (http://www.nuron.com/) and is now available in
4395 demos/state_machine.
4398 *) New options added to the 'dgst' utility for signature
4399 generation and verification.
4402 *) Unrecognized PKCS#7 content types are now handled via a
4403 catch all ASN1_TYPE structure. This allows unsupported
4404 types to be stored as a "blob" and an application can
4405 encode and decode it manually.
4408 *) Fix various signed/unsigned issues to make a_strex.c
4410 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4412 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4413 length if passed a buffer. ASN1_INTEGER_to_BN failed
4414 if passed a NULL BN and its argument was negative.
4415 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4417 *) Modification to PKCS#7 encoding routines to output definite
4418 length encoding. Since currently the whole structures are in
4419 memory there's not real point in using indefinite length
4420 constructed encoding. However if OpenSSL is compiled with
4421 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4424 *) Added BIO_vprintf() and BIO_vsnprintf().
4427 *) Added more prefixes to parse for in the the strings written
4428 through a logging bio, to cover all the levels that are available
4429 through syslog. The prefixes are now:
4431 PANIC, EMERG, EMR => LOG_EMERG
4432 ALERT, ALR => LOG_ALERT
4433 CRIT, CRI => LOG_CRIT
4434 ERROR, ERR => LOG_ERR
4435 WARNING, WARN, WAR => LOG_WARNING
4436 NOTICE, NOTE, NOT => LOG_NOTICE
4437 INFO, INF => LOG_INFO
4438 DEBUG, DBG => LOG_DEBUG
4440 and as before, if none of those prefixes are present at the
4441 beginning of the string, LOG_ERR is chosen.
4443 On Win32, the LOG_* levels are mapped according to this:
4445 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4446 LOG_WARNING => EVENTLOG_WARNING_TYPE
4447 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4451 *) Made it possible to reconfigure with just the configuration
4452 argument "reconf" or "reconfigure". The command line arguments
4453 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4454 and are retrieved from there when reconfiguring.
4458 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4460 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4463 *) The obj_dat.pl script was messing up the sorting of object
4464 names. The reason was that it compared the quoted version
4465 of strings as a result "OCSP" > "OCSP Signing" because
4466 " > SPACE. Changed script to store unquoted versions of
4467 names and add quotes on output. It was also omitting some
4468 names from the lookup table if they were given a default
4469 value (that is if SN is missing it is given the same
4470 value as LN and vice versa), these are now added on the
4471 grounds that if an object has a name we should be able to
4472 look it up. Finally added warning output when duplicate
4473 short or long names are found.
4476 *) Changes needed for Tandem NSK.
4477 [Scott Uroff <scott@xypro.com>]
4479 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4480 RSA_padding_check_SSLv23(), special padding was never detected
4481 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4482 version rollback attacks was not effective.
4484 In s23_clnt.c, don't use special rollback-attack detection padding
4485 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4486 client; similarly, in s23_srvr.c, don't do the rollback check if
4487 SSL 2.0 is the only protocol enabled in the server.
4490 *) Make it possible to get hexdumps of unprintable data with 'openssl
4491 asn1parse'. By implication, the functions ASN1_parse_dump() and
4492 BIO_dump_indent() are added.
4495 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4496 these print out strings and name structures based on various
4497 flags including RFC2253 support and proper handling of
4498 multibyte characters. Added options to the 'x509' utility
4499 to allow the various flags to be set.
4502 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4503 Also change the functions X509_cmp_current_time() and
4504 X509_gmtime_adj() work with an ASN1_TIME structure,
4505 this will enable certificates using GeneralizedTime in validity
4506 dates to be checked.
4509 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4510 negative public key encodings) on by default,
4511 NO_NEG_PUBKEY_BUG can be set to disable it.
4514 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4515 content octets. An i2c_ASN1_OBJECT is unnecessary because
4516 the encoding can be trivially obtained from the structure.
4519 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4520 not read locks (CRYPTO_r_[un]lock).
4523 *) A first attempt at creating official support for shared
4524 libraries through configuration. I've kept it so the
4525 default is static libraries only, and the OpenSSL programs
4526 are always statically linked for now, but there are
4527 preparations for dynamic linking in place.
4528 This has been tested on Linux and Tru64.
4531 *) Randomness polling function for Win9x, as described in:
4532 Peter Gutmann, Software Generation of Practically Strong
4536 *) Fix so PRNG is seeded in req if using an already existing
4540 *) New options to smime application. -inform and -outform
4541 allow alternative formats for the S/MIME message including
4542 PEM and DER. The -content option allows the content to be
4543 specified separately. This should allow things like Netscape
4544 form signing output easier to verify.
4547 *) Fix the ASN1 encoding of tags using the 'long form'.
4550 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4551 STRING types. These convert content octets to and from the
4552 underlying type. The actual tag and length octets are
4553 already assumed to have been read in and checked. These
4554 are needed because all other string types have virtually
4555 identical handling apart from the tag. By having versions
4556 of the ASN1 functions that just operate on content octets
4557 IMPLICIT tagging can be handled properly. It also allows
4558 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4559 and ASN1_INTEGER are identical apart from the tag.
4562 *) Change the handling of OID objects as follows:
4564 - New object identifiers are inserted in objects.txt, following
4565 the syntax given in objects.README.
4566 - objects.pl is used to process obj_mac.num and create a new
4568 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4571 This is currently kind of a hack, and the perl code in objects.pl
4572 isn't very elegant, but it works as I intended. The simplest way
4573 to check that it worked correctly is to look in obj_dat.h and
4574 check the array nid_objs and make sure the objects haven't moved
4575 around (this is important!). Additions are OK, as well as
4576 consistent name changes.
4579 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4582 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4583 The given file adds to whatever has already been seeded into the
4584 random pool through the RANDFILE configuration file option or
4585 environment variable, or the default random state file.
4588 *) mkstack.pl now sorts each macro group into lexical order.
4589 Previously the output order depended on the order the files
4590 appeared in the directory, resulting in needless rewriting
4594 *) Patches to make OpenSSL compile under Win32 again. Mostly
4595 work arounds for the VC++ problem that it treats func() as
4596 func(void). Also stripped out the parts of mkdef.pl that
4597 added extra typesafe functions: these no longer exist.
4600 *) Reorganisation of the stack code. The macros are now all
4601 collected in safestack.h . Each macro is defined in terms of
4602 a "stack macro" of the form SKM_<name>(type, a, b). The
4603 DEBUG_SAFESTACK is now handled in terms of function casts,
4604 this has the advantage of retaining type safety without the
4605 use of additional functions. If DEBUG_SAFESTACK is not defined
4606 then the non typesafe macros are used instead. Also modified the
4607 mkstack.pl script to handle the new form. Needs testing to see
4608 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4609 the default if no major problems. Similar behaviour for ASN1_SET_OF
4610 and PKCS12_STACK_OF.
4613 *) When some versions of IIS use the 'NET' form of private key the
4614 key derivation algorithm is different. Normally MD5(password) is
4615 used as a 128 bit RC4 key. In the modified case
4616 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4617 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4618 as the old Netscape_RSA functions except they have an additional
4619 'sgckey' parameter which uses the modified algorithm. Also added
4620 an -sgckey command line option to the rsa utility. Thanks to
4621 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4622 algorithm to openssl-dev.
4625 *) The evp_local.h macros were using 'c.##kname' which resulted in
4626 invalid expansion on some systems (SCO 5.0.5 for example).
4627 Corrected to 'c.kname'.
4628 [Phillip Porch <root@theporch.com>]
4630 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4631 a STACK of email addresses from a certificate or request, these look
4632 in the subject name and the subject alternative name extensions and
4633 omit any duplicate addresses.
4636 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4637 This makes DSA verification about 2 % faster.
4640 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4641 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4642 plus overhead for 1024 bit moduli).
4643 This makes exponentiations about 0.5 % faster for 1024 bit
4644 exponents (as measured by "openssl speed rsa2048").
4647 *) Rename memory handling macros to avoid conflicts with other
4649 Malloc => OPENSSL_malloc
4650 Malloc_locked => OPENSSL_malloc_locked
4651 Realloc => OPENSSL_realloc
4652 Free => OPENSSL_free
4655 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4656 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4659 *) CygWin32 support.
4660 [John Jarvie <jjarvie@newsguy.com>]
4662 *) The type-safe stack code has been rejigged. It is now only compiled
4663 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4664 by default all type-specific stack functions are "#define"d back to
4665 standard stack functions. This results in more streamlined output
4666 but retains the type-safety checking possibilities of the original
4670 *) The STACK code has been cleaned up, and certain type declarations
4671 that didn't make a lot of sense have been brought in line. This has
4672 also involved a cleanup of sorts in safestack.h to more correctly
4673 map type-safe stack functions onto their plain stack counterparts.
4674 This work has also resulted in a variety of "const"ifications of
4675 lots of the code, especially "_cmp" operations which should normally
4676 be prototyped with "const" parameters anyway.
4679 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4680 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4681 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4682 where all of 'md' is used each time the PRNG is used, but 'state'
4683 is used only indexed by a cyclic counter. As entropy may not be
4684 well distributed from the beginning, 'md' is important as a
4685 chaining variable. However, the output function chains only half
4686 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4687 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4688 in all of 'state' being rewritten, with the new values depending
4689 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4692 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4693 the handshake is continued after ssl_verify_cert_chain();
4694 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4695 can lead to 'unexplainable' connection aborts later.
4696 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4698 *) Major EVP API cipher revision.
4699 Add hooks for extra EVP features. This allows various cipher
4700 parameters to be set in the EVP interface. Support added for variable
4701 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4702 setting of RC2 and RC5 parameters.
4704 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4707 Remove lots of duplicated code from the EVP library. For example *every*
4708 cipher init() function handles the 'iv' in the same way according to the
4709 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4710 for CFB and OFB modes they zero ctx->num.
4712 New functionality allows removal of S/MIME code RC2 hack.
4714 Most of the routines have the same form and so can be declared in terms
4717 By shifting this to the top level EVP_CipherInit() it can be removed from
4718 all individual ciphers. If the cipher wants to handle IVs or keys
4719 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4722 Change lots of functions like EVP_EncryptUpdate() to now return a
4723 value: although software versions of the algorithms cannot fail
4724 any installed hardware versions can.
4727 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4728 this option is set, tolerate broken clients that send the negotiated
4729 protocol version number instead of the requested protocol version
4733 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4734 i.e. non-zero for export ciphersuites, zero otherwise.
4735 Previous versions had this flag inverted, inconsistent with
4736 rsa_tmp_cb (..._TMP_RSA_CB).
4737 [Bodo Moeller; problem reported by Amit Chopra]
4739 *) Add missing DSA library text string. Work around for some IIS
4740 key files with invalid SEQUENCE encoding.
4743 *) Add a document (doc/standards.txt) that list all kinds of standards
4744 and so on that are implemented in OpenSSL.
4747 *) Enhance c_rehash script. Old version would mishandle certificates
4748 with the same subject name hash and wouldn't handle CRLs at all.
4749 Added -fingerprint option to crl utility, to support new c_rehash
4753 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4756 *) Fix for SSL server purpose checking. Server checking was
4757 rejecting certificates which had extended key usage present
4758 but no ssl client purpose.
4759 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4761 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4762 is a little unclear about how a blank password is handled.
4763 Since the password in encoded as a BMPString with terminating
4764 double NULL a zero length password would end up as just the
4765 double NULL. However no password at all is different and is
4766 handled differently in the PKCS#12 key generation code. NS
4767 treats a blank password as zero length. MSIE treats it as no
4768 password on export: but it will try both on import. We now do
4769 the same: PKCS12_parse() tries zero length and no password if
4770 the password is set to "" or NULL (NULL is now a valid password:
4771 it wasn't before) as does the pkcs12 application.
4774 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4775 perror when PEM_read_bio_X509_REQ fails, the error message must
4776 be obtained from the error queue.
4779 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4780 it in ERR_remove_state if appropriate, and change ERR_get_state
4781 accordingly to avoid race conditions (this is necessary because
4782 thread_hash is no longer constant once set).
4785 *) Bugfix for linux-elf makefile.one.
4788 *) RSA_get_default_method() will now cause a default
4789 RSA_METHOD to be chosen if one doesn't exist already.
4790 Previously this was only set during a call to RSA_new()
4791 or RSA_new_method(NULL) meaning it was possible for
4792 RSA_get_default_method() to return NULL.
4795 *) Added native name translation to the existing DSO code
4796 that will convert (if the flag to do so is set) filenames
4797 that are sufficiently small and have no path information
4798 into a canonical native form. Eg. "blah" converted to
4799 "libblah.so" or "blah.dll" etc.
4802 *) New function ERR_error_string_n(e, buf, len) which is like
4803 ERR_error_string(e, buf), but writes at most 'len' bytes
4804 including the 0 terminator. For ERR_error_string_n, 'buf'
4806 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4808 *) CONF library reworked to become more general. A new CONF
4809 configuration file reader "class" is implemented as well as a
4810 new functions (NCONF_*, for "New CONF") to handle it. The now
4811 old CONF_* functions are still there, but are reimplemented to
4812 work in terms of the new functions. Also, a set of functions
4813 to handle the internal storage of the configuration data is
4814 provided to make it easier to write new configuration file
4815 reader "classes" (I can definitely see something reading a
4816 configuration file in XML format, for example), called _CONF_*,
4817 or "the configuration storage API"...
4819 The new configuration file reading functions are:
4821 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4822 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4824 NCONF_default, NCONF_WIN32
4826 NCONF_dump_fp, NCONF_dump_bio
4828 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4829 NCONF_new creates a new CONF object. This works in the same way
4830 as other interfaces in OpenSSL, like the BIO interface.
4831 NCONF_dump_* dump the internal storage of the configuration file,
4832 which is useful for debugging. All other functions take the same
4833 arguments as the old CONF_* functions wth the exception of the
4834 first that must be a `CONF *' instead of a `LHASH *'.
4836 To make it easer to use the new classes with the old CONF_* functions,
4837 the function CONF_set_default_method is provided.
4840 *) Add '-tls1' option to 'openssl ciphers', which was already
4841 mentioned in the documentation but had not been implemented.
4842 (This option is not yet really useful because even the additional
4843 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4846 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4847 OpenSSL-based applications) load shared libraries and bind to
4848 them in a portable way.
4849 [Geoff Thorpe, with contributions from Richard Levitte]
4851 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4853 *) Make sure _lrotl and _lrotr are only used with MSVC.
4855 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4856 (the default implementation of RAND_status).
4858 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4859 to '-clrext' (= clear extensions), as intended and documented.
4860 [Bodo Moeller; inconsistency pointed out by Michael Attili
4863 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4864 was larger than the MD block size.
4865 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4867 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4868 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4869 using the passed key: if the passed key was a private key the result
4870 of X509_print(), for example, would be to print out all the private key
4874 *) des_quad_cksum() byte order bug fix.
4875 [Ulf Möller, using the problem description in krb4-0.9.7, where
4876 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4878 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4880 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4882 *) For easily testing in shell scripts whether some command
4883 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4884 returns with exit code 0 iff no command of the given name is available.
4885 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4886 the output goes to stdout and nothing is printed to stderr.
4887 Additional arguments are always ignored.
4889 Since for each cipher there is a command of the same name,
4890 the 'no-cipher' compilation switches can be tested this way.
4892 ('openssl no-XXX' is not able to detect pseudo-commands such
4893 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4896 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4899 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4900 is set; it will be thrown away anyway because each handshake creates
4902 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4903 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4904 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4905 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4908 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4909 'Q' and 'R' lose their special meanings (quit/renegotiate).
4910 This is part of what -quiet does; unlike -quiet, -ign_eof
4911 does not suppress any output.
4914 *) Add compatibility options to the purpose and trust code. The
4915 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4916 accepts a certificate or CA, this was the previous behaviour,
4917 with all the associated security issues.
4919 X509_TRUST_COMPAT is the old trust behaviour: only and
4920 automatically trust self signed roots in certificate store. A
4921 new trust setting X509_TRUST_DEFAULT is used to specify that
4922 a purpose has no associated trust setting and it should instead
4923 use the value in the default purpose.
4926 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4927 and fix a memory leak.
4930 *) In util/mkerr.pl (which implements 'make errors'), preserve
4931 reason strings from the previous version of the .c file, as
4932 the default to have only downcase letters (and digits) in
4933 automatically generated reasons codes is not always appropriate.
4936 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4937 using strerror. Previously, ERR_reason_error_string() returned
4938 library names as reason strings for SYSerr; but SYSerr is a special
4939 case where small numbers are errno values, not library numbers.
4942 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4943 converts DSA parameters into DH parameters. (When creating parameters,
4944 DSA_generate_parameters is used.)
4947 *) Include 'length' (recommended exponent length) in C code generated
4948 by 'openssl dhparam -C'.
4951 *) The second argument to set_label in perlasm was already being used
4952 so couldn't be used as a "file scope" flag. Moved to third argument
4956 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4957 instead of RAND_bytes for encryption IVs and salts.
4960 *) Include RAND_status() into RAND_METHOD instead of implementing
4961 it only for md_rand.c Otherwise replacing the PRNG by calling
4962 RAND_set_rand_method would be impossible.
4965 *) Don't let DSA_generate_key() enter an infinite loop if the random
4966 number generation fails.
4969 *) New 'rand' application for creating pseudo-random output.
4972 *) Added configuration support for Linux/IA64
4973 [Rolf Haberrecker <rolf@suse.de>]
4975 *) Assembler module support for Mingw32.
4978 *) Shared library support for HPUX (in shlib/).
4979 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4981 *) Shared library support for Solaris gcc.
4982 [Lutz Behnke <behnke@trustcenter.de>]
4984 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4986 *) PKCS7_encrypt() was adding text MIME headers twice because they
4987 were added manually and by SMIME_crlf_copy().
4990 *) In bntest.c don't call BN_rand with zero bits argument.
4991 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4993 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4994 case was implemented. This caused BN_div_recp() to fail occasionally.
4997 *) Add an optional second argument to the set_label() in the perl
4998 assembly language builder. If this argument exists and is set
4999 to 1 it signals that the assembler should use a symbol whose
5000 scope is the entire file, not just the current function. This
5001 is needed with MASM which uses the format label:: for this scope.
5002 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5004 *) Change the ASN1 types so they are typedefs by default. Before
5005 almost all types were #define'd to ASN1_STRING which was causing
5006 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5010 *) Change names of new functions to the new get1/get0 naming
5011 convention: After 'get1', the caller owns a reference count
5012 and has to call ..._free; 'get0' returns a pointer to some
5013 data structure without incrementing reference counters.
5014 (Some of the existing 'get' functions increment a reference
5015 counter, some don't.)
5016 Similarly, 'set1' and 'add1' functions increase reference
5017 counters or duplicate objects.
5020 *) Allow for the possibility of temp RSA key generation failure:
5021 the code used to assume it always worked and crashed on failure.
5024 *) Fix potential buffer overrun problem in BIO_printf().
5025 [Ulf Möller, using public domain code by Patrick Powell; problem
5026 pointed out by David Sacerdote <das33@cornell.edu>]
5028 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5029 RAND_egd() and RAND_status(). In the command line application,
5030 the EGD socket can be specified like a seed file using RANDFILE
5034 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5035 Some CAs (e.g. Verisign) distribute certificates in this form.
5038 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5039 list to exclude them. This means that no special compilation option
5040 is needed to use anonymous DH: it just needs to be included in the
5044 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5045 EVP_MD_type. The old functionality is available in a new macro called
5046 EVP_MD_md(). Change code that uses it and update docs.
5049 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5050 where the 'void *' argument is replaced by a function pointer argument.
5051 Previously 'void *' was abused to point to functions, which works on
5052 many platforms, but is not correct. As these functions are usually
5053 called by macros defined in OpenSSL header files, most source code
5054 should work without changes.
5057 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5058 sections with information on -D... compiler switches used for
5059 compiling the library so that applications can see them. To enable
5060 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5061 must be defined. E.g.,
5062 #define OPENSSL_ALGORITHM_DEFINES
5063 #include <openssl/opensslconf.h>
5064 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5065 [Richard Levitte, Ulf and Bodo Möller]
5067 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5071 *) Change the 'other' type in certificate aux info to a STACK_OF
5072 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5073 the required ASN1 format: arbitrary types determined by an OID.
5076 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5077 argument to 'req'. This is not because the function is newer or
5078 better than others it just uses the work 'NEW' in the certificate
5079 request header lines. Some software needs this.
5082 *) Reorganise password command line arguments: now passwords can be
5083 obtained from various sources. Delete the PEM_cb function and make
5084 it the default behaviour: i.e. if the callback is NULL and the
5085 usrdata argument is not NULL interpret it as a null terminated pass
5086 phrase. If usrdata and the callback are NULL then the pass phrase
5087 is prompted for as usual.
5090 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5091 the support is automatically enabled. The resulting binaries will
5092 autodetect the card and use it if present.
5093 [Ben Laurie and Compaq Inc.]
5095 *) Work around for Netscape hang bug. This sends certificate request
5096 and server done in one record. Since this is perfectly legal in the
5097 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5098 the bugs/SSLv3 entry for more info.
5101 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5104 *) Add -rand argument to smime and pkcs12 applications and read/write
5108 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5111 *) Add command line password options to the remaining applications.
5114 *) Bug fix for BN_div_recp() for numerators with an even number of
5118 *) More tests in bntest.c, and changed test_bn output.
5121 *) ./config recognizes MacOS X now.
5124 *) Bug fix for BN_div() when the first words of num and divsor are
5125 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5128 *) Add support for various broken PKCS#8 formats, and command line
5129 options to produce them.
5132 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5133 get temporary BIGNUMs from a BN_CTX.
5136 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5140 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5141 include a #define from the old name to the new. The original intent
5142 was that statically linked binaries could for example just call
5143 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5144 link with digests. This never worked becayse SSLeay_add_all_digests()
5145 and SSLeay_add_all_ciphers() were in the same source file so calling
5146 one would link with the other. They are now in separate source files.
5149 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5152 *) Use a less unusual form of the Miller-Rabin primality test (it used
5153 a binary algorithm for exponentiation integrated into the Miller-Rabin
5154 loop, our standard modexp algorithms are faster).
5157 *) Support for the EBCDIC character set completed.
5158 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5160 *) Source code cleanups: use const where appropriate, eliminate casts,
5161 use void * instead of char * in lhash.
5164 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5165 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5166 this the server could overwrite ephemeral keys that the client
5170 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5171 using 50 iterations of the Rabin-Miller test.
5173 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5174 iterations of the Rabin-Miller test as required by the appendix
5175 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5176 As BN_is_prime_fasttest includes trial division, DSA parameter
5177 generation becomes much faster.
5179 This implies a change for the callback functions in DSA_is_prime
5180 and DSA_generate_parameters: The callback function is called once
5181 for each positive witness in the Rabin-Miller test, not just
5182 occasionally in the inner loop; and the parameters to the
5183 callback function now provide an iteration count for the outer
5184 loop rather than for the current invocation of the inner loop.
5185 DSA_generate_parameters additionally can call the callback
5186 function with an 'iteration count' of -1, meaning that a
5187 candidate has passed the trial division test (when q is generated
5188 from an application-provided seed, trial division is skipped).
5191 *) New function BN_is_prime_fasttest that optionally does trial
5192 division before starting the Rabin-Miller test and has
5193 an additional BN_CTX * argument (whereas BN_is_prime always
5194 has to allocate at least one BN_CTX).
5195 'callback(1, -1, cb_arg)' is called when a number has passed the
5196 trial division stage.
5199 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5203 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5206 *) New function BN_pseudo_rand().
5209 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5210 bignum version of BN_from_montgomery() with the working code from
5211 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5215 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5216 made it impossible to use the same SSL_SESSION data structure in
5217 SSL2 clients in multiple threads.
5220 *) The return value of RAND_load_file() no longer counts bytes obtained
5221 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5222 to seed the PRNG (previously an explicit byte count was required).
5223 [Ulf Möller, Bodo Möller]
5225 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5226 used (char *) instead of (void *) and had casts all over the place.
5229 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5232 *) Retain source code compatibility for BN_prime_checks macro:
5233 BN_is_prime(..., BN_prime_checks, ...) now uses
5234 BN_prime_checks_for_size to determine the appropriate number of
5235 Rabin-Miller iterations.
5238 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5239 DH_CHECK_P_NOT_SAFE_PRIME.
5240 (Check if this is true? OpenPGP calls them "strong".)
5243 *) Merge the functionality of "dh" and "gendh" programs into a new program
5244 "dhparam". The old programs are retained for now but will handle DH keys
5245 (instead of parameters) in future.
5248 *) Make the ciphers, s_server and s_client programs check the return values
5249 when a new cipher list is set.
5252 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5253 ciphers. Before when the 56bit ciphers were enabled the sorting was
5256 The syntax for the cipher sorting has been extended to support sorting by
5257 cipher-strength (using the strength_bits hard coded in the tables).
5258 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5260 Fix a bug in the cipher-command parser: when supplying a cipher command
5261 string with an "undefined" symbol (neither command nor alphanumeric
5262 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5263 an error is flagged.
5265 Due to the strength-sorting extension, the code of the
5266 ssl_create_cipher_list() function was completely rearranged. I hope that
5267 the readability was also increased :-)
5268 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5270 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5271 for the first serial number and places 2 in the serial number file. This
5272 avoids problems when the root CA is created with serial number zero and
5273 the first user certificate has the same issuer name and serial number
5277 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5278 the new code. Add documentation for this stuff.
5281 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5282 X509_*() to X509at_*() on the grounds that they don't handle X509
5283 structures and behave in an analagous way to the X509v3 functions:
5284 they shouldn't be called directly but wrapper functions should be used
5287 So we also now have some wrapper functions that call the X509at functions
5288 when passed certificate requests. (TO DO: similar things can be done with
5289 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5290 things. Some of these need some d2i or i2d and print functionality
5291 because they handle more complex structures.)
5294 *) Add missing #ifndefs that caused missing symbols when building libssl
5295 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5296 NO_RSA in ssl/s2*.c.
5297 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5299 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5300 has a return value which indicates the quality of the random data
5301 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5302 error queue. New function RAND_pseudo_bytes() generates output that is
5303 guaranteed to be unique but not unpredictable. RAND_add is like
5304 RAND_seed, but takes an extra argument for an entropy estimate
5305 (RAND_seed always assumes full entropy).
5308 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5309 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5310 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5311 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5312 false-positive rate of at most 2^-80 for random input.
5315 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5318 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5319 in the 0.9.5 release), this returns the chain
5320 from an X509_CTX structure with a dup of the stack and all
5321 the X509 reference counts upped: so the stack will exist
5322 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5325 Also make SSL_SESSION_print() print out the verify return
5329 *) Add manpage for the pkcs12 command. Also change the default
5330 behaviour so MAC iteration counts are used unless the new
5331 -nomaciter option is used. This improves file security and
5332 only older versions of MSIE (4.0 for example) need it.
5335 *) Honor the no-xxx Configure options when creating .DEF files.
5338 *) Add PKCS#10 attributes to field table: challengePassword,
5339 unstructuredName and unstructuredAddress. These are taken from
5340 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5341 international characters are used.
5343 More changes to X509_ATTRIBUTE code: allow the setting of types
5344 based on strings. Remove the 'loc' parameter when adding
5345 attributes because these will be a SET OF encoding which is sorted
5349 *) Initial changes to the 'req' utility to allow request generation
5350 automation. This will allow an application to just generate a template
5351 file containing all the field values and have req construct the
5354 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5355 used all over the place including certificate requests and PKCS#7
5356 structures. They are currently handled manually where necessary with
5357 some primitive wrappers for PKCS#7. The new functions behave in a
5358 manner analogous to the X509 extension functions: they allow
5359 attributes to be looked up by NID and added.
5361 Later something similar to the X509V3 code would be desirable to
5362 automatically handle the encoding, decoding and printing of the
5363 more complex types. The string types like challengePassword can
5364 be handled by the string table functions.
5366 Also modified the multi byte string table handling. Now there is
5367 a 'global mask' which masks out certain types. The table itself
5368 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5369 is useful when for example there is only one permissible type
5370 (as in countryName) and using the mask might result in no valid
5374 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5375 SSL_get_peer_finished to allow applications to obtain the latest
5376 Finished messages sent to the peer or expected from the peer,
5377 respectively. (SSL_get_peer_finished is usually the Finished message
5378 actually received from the peer, otherwise the protocol will be aborted.)
5380 As the Finished message are message digests of the complete handshake
5381 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5382 be used for external authentication procedures when the authentication
5383 provided by SSL/TLS is not desired or is not enough.
5386 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5387 the host supports BWX extension and if Compaq C is present on the
5388 $PATH. Just exploiting of the BWX extension results in 20-30%
5389 performance kick for some algorithms, e.g. DES and RC4 to mention
5390 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5394 *) Add support for MS "fast SGC". This is arguably a violation of the
5395 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5396 weak crypto and after checking the certificate is SGC a second one
5397 with strong crypto. MS SGC stops the first handshake after receiving
5398 the server certificate message and sends a second client hello. Since
5399 a server will typically do all the time consuming operations before
5400 expecting any further messages from the client (server key exchange
5401 is the most expensive) there is little difference between the two.
5403 To get OpenSSL to support MS SGC we have to permit a second client
5404 hello message after we have sent server done. In addition we have to
5405 reset the MAC if we do get this second client hello.
5408 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5409 if a DER encoded private key is RSA or DSA traditional format. Changed
5410 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5411 format DER encoded private key. Newer code should use PKCS#8 format which
5412 has the key type encoded in the ASN1 structure. Added DER private key
5413 support to pkcs8 application.
5416 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5417 ciphersuites has been selected (as required by the SSL 3/TLS 1
5418 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5419 is set, we interpret this as a request to violate the specification
5420 (the worst that can happen is a handshake failure, and 'correct'
5421 behaviour would result in a handshake failure anyway).
5424 *) In SSL_CTX_add_session, take into account that there might be multiple
5425 SSL_SESSION structures with the same session ID (e.g. when two threads
5426 concurrently obtain them from an external cache).
5427 The internal cache can handle only one SSL_SESSION with a given ID,
5428 so if there's a conflict, we now throw out the old one to achieve
5432 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5433 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5434 some routines that use cipher OIDs: some ciphers do not have OIDs
5435 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5439 *) Simplify the trust setting structure and code. Now we just have
5440 two sequences of OIDs for trusted and rejected settings. These will
5441 typically have values the same as the extended key usage extension
5442 and any application specific purposes.
5444 The trust checking code now has a default behaviour: it will just
5445 check for an object with the same NID as the passed id. Functions can
5446 be provided to override either the default behaviour or the behaviour
5447 for a given id. SSL client, server and email already have functions
5448 in place for compatibility: they check the NID and also return "trusted"
5449 if the certificate is self signed.
5452 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5453 traditional format into an EVP_PKEY structure.
5456 *) Add a password callback function PEM_cb() which either prompts for
5457 a password if usr_data is NULL or otherwise assumes it is a null
5458 terminated password. Allow passwords to be passed on command line
5459 environment or config files in a few more utilities.
5462 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5463 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5464 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5465 Update documentation.
5468 *) Support for ASN1 "NULL" type. This could be handled before by using
5469 ASN1_TYPE but there wasn't any function that would try to read a NULL
5470 and produce an error if it couldn't. For compatibility we also have
5471 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5472 don't allocate anything because they don't need to.
5475 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5477 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5479 *) Rebuild of the memory allocation routines used by OpenSSL code and
5480 possibly others as well. The purpose is to make an interface that
5481 provide hooks so anyone can build a separate set of allocation and
5482 deallocation routines to be used by OpenSSL, for example memory
5483 pool implementations, or something else, which was previously hard
5484 since Malloc(), Realloc() and Free() were defined as macros having
5485 the values malloc, realloc and free, respectively (except for Win32
5486 compilations). The same is provided for memory debugging code.
5487 OpenSSL already comes with functionality to find memory leaks, but
5488 this gives people a chance to debug other memory problems.
5490 With these changes, a new set of functions and macros have appeared:
5492 CRYPTO_set_mem_debug_functions() [F]
5493 CRYPTO_get_mem_debug_functions() [F]
5494 CRYPTO_dbg_set_options() [F]
5495 CRYPTO_dbg_get_options() [F]
5496 CRYPTO_malloc_debug_init() [M]
5498 The memory debug functions are NULL by default, unless the library
5499 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5500 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5501 gives the standard debugging functions that come with OpenSSL) or
5502 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5503 provided by the library user) must be used. When the standard
5504 debugging functions are used, CRYPTO_dbg_set_options can be used to
5505 request additional information:
5506 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5507 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5509 Also, things like CRYPTO_set_mem_functions will always give the
5510 expected result (the new set of functions is used for allocation
5511 and deallocation) at all times, regardless of platform and compiler
5514 To finish it up, some functions that were never use in any other
5515 way than through macros have a new API and new semantic:
5518 CRYPTO_dbg_realloc()
5521 All macros of value have retained their old syntax.
5522 [Richard Levitte and Bodo Moeller]
5524 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5525 ordering of SMIMECapabilities wasn't in "strength order" and there
5526 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5530 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5531 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5532 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5534 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5535 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5536 functionality to handle multipart/signed properly) and a utility
5537 called 'smime' to call all this stuff. This is based on code I
5538 originally wrote for Celo who have kindly allowed it to be
5539 included in OpenSSL.
5542 *) Add variants des_set_key_checked and des_set_key_unchecked of
5543 des_set_key (aka des_key_sched). Global variable des_check_key
5544 decides which of these is called by des_set_key; this way
5545 des_check_key behaves as it always did, but applications and
5546 the library itself, which was buggy for des_check_key == 1,
5547 have a cleaner way to pick the version they need.
5550 *) New function PKCS12_newpass() which changes the password of a
5554 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5555 dynamic mix. In both cases the ids can be used as an index into the
5556 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5557 functions so they accept a list of the field values and the
5558 application doesn't need to directly manipulate the X509_TRUST
5562 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5566 *) Modify the way the V3 extension code looks up extensions. This now
5567 works in a similar way to the object code: we have some "standard"
5568 extensions in a static table which is searched with OBJ_bsearch()
5569 and the application can add dynamic ones if needed. The file
5570 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5571 updated whenever a new extension is added to the core code and kept
5572 in ext_nid order. There is a simple program 'tabtest.c' which checks
5573 this. New extensions are not added too often so this file can readily
5574 be maintained manually.
5576 There are two big advantages in doing things this way. The extensions
5577 can be looked up immediately and no longer need to be "added" using
5578 X509V3_add_standard_extensions(): this function now does nothing.
5579 [Side note: I get *lots* of email saying the extension code doesn't
5580 work because people forget to call this function]
5581 Also no dynamic allocation is done unless new extensions are added:
5582 so if we don't add custom extensions there is no need to call
5583 X509V3_EXT_cleanup().
5586 *) Modify enc utility's salting as follows: make salting the default. Add a
5587 magic header, so unsalted files fail gracefully instead of just decrypting
5588 to garbage. This is because not salting is a big security hole, so people
5589 should be discouraged from doing it.
5592 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5593 digest to be passed on the command line but it only used this
5594 parameter when signing a certificate. Modified so all relevant
5595 operations are affected by the digest parameter including the
5596 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5597 DSA key was used because it didn't fix the digest.
5600 *) Initial certificate chain verify code. Currently tests the untrusted
5601 certificates for consistency with the verify purpose (which is set
5602 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5604 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5605 this is because it will reject chains with invalid extensions whereas
5606 every previous version of OpenSSL and SSLeay made no checks at all.
5608 Trust code: checks the root CA for the relevant trust settings. Trust
5609 settings have an initial value consistent with the verify purpose: e.g.
5610 if the verify purpose is for SSL client use it expects the CA to be
5611 trusted for SSL client use. However the default value can be changed to
5612 permit custom trust settings: one example of this would be to only trust
5613 certificates from a specific "secure" set of CAs.
5615 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5616 which should be used for version portability: especially since the
5617 verify structure is likely to change more often now.
5619 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5620 to set them. If not set then assume SSL clients will verify SSL servers
5623 Two new options to the verify program: -untrusted allows a set of
5624 untrusted certificates to be passed in and -purpose which sets the
5625 intended purpose of the certificate. If a purpose is set then the
5626 new chain verify code is used to check extension consistency.
5629 *) Support for the authority information access extension.
5632 *) Modify RSA and DSA PEM read routines to transparently handle
5633 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5634 public keys in a format compatible with certificate
5635 SubjectPublicKeyInfo structures. Unfortunately there were already
5636 functions called *_PublicKey_* which used various odd formats so
5637 these are retained for compatibility: however the DSA variants were
5638 never in a public release so they have been deleted. Changed dsa/rsa
5639 utilities to handle the new format: note no releases ever handled public
5640 keys so we should be OK.
5642 The primary motivation for this change is to avoid the same fiasco
5643 that dogs private keys: there are several incompatible private key
5644 formats some of which are standard and some OpenSSL specific and
5645 require various evil hacks to allow partial transparent handling and
5646 even then it doesn't work with DER formats. Given the option anything
5647 other than PKCS#8 should be dumped: but the other formats have to
5648 stay in the name of compatibility.
5650 With public keys and the benefit of hindsight one standard format
5651 is used which works with EVP_PKEY, RSA or DSA structures: though
5652 it clearly returns an error if you try to read the wrong kind of key.
5654 Added a -pubkey option to the 'x509' utility to output the public key.
5655 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5656 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5657 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5658 that do the same as the EVP_PKEY_assign_*() except they up the
5659 reference count of the added key (they don't "swallow" the
5663 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5664 CRLs would fail if the file contained no certificates or no CRLs:
5665 added a new function to read in both types and return the number
5666 read: this means that if none are read it will be an error. The
5667 DER versions of the certificate and CRL reader would always fail
5668 because it isn't possible to mix certificates and CRLs in DER format
5669 without choking one or the other routine. Changed this to just read
5670 a certificate: this is the best we can do. Also modified the code
5671 in apps/verify.c to take notice of return codes: it was previously
5672 attempting to read in certificates from NULL pointers and ignoring
5673 any errors: this is one reason why the cert and CRL reader seemed
5674 to work. It doesn't check return codes from the default certificate
5675 routines: these may well fail if the certificates aren't installed.
5678 *) Code to support otherName option in GeneralName.
5681 *) First update to verify code. Change the verify utility
5682 so it warns if it is passed a self signed certificate:
5683 for consistency with the normal behaviour. X509_verify
5684 has been modified to it will now verify a self signed
5685 certificate if *exactly* the same certificate appears
5686 in the store: it was previously impossible to trust a
5687 single self signed certificate. This means that:
5688 openssl verify ss.pem
5689 now gives a warning about a self signed certificate but
5690 openssl verify -CAfile ss.pem ss.pem
5694 *) For servers, store verify_result in SSL_SESSION data structure
5695 (and add it to external session representation).
5696 This is needed when client certificate verifications fails,
5697 but an application-provided verification callback (set by
5698 SSL_CTX_set_cert_verify_callback) allows accepting the session
5699 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5700 but returns 1): When the session is reused, we have to set
5701 ssl->verify_result to the appropriate error code to avoid
5703 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5705 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5706 case in PKCS7_dataInit() where the signed PKCS7 structure
5707 didn't contain any existing data because it was being created.
5708 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5710 *) Add a salt to the key derivation routines in enc.c. This
5711 forms the first 8 bytes of the encrypted file. Also add a
5712 -S option to allow a salt to be input on the command line.
5715 *) New function X509_cmp(). Oddly enough there wasn't a function
5716 to compare two certificates. We do this by working out the SHA1
5717 hash and comparing that. X509_cmp() will be needed by the trust
5721 *) SSL_get1_session() is like SSL_get_session(), but increments
5722 the reference count in the SSL_SESSION returned.
5723 [Geoff Thorpe <geoff@eu.c2.net>]
5725 *) Fix for 'req': it was adding a null to request attributes.
5726 Also change the X509_LOOKUP and X509_INFO code to handle
5727 certificate auxiliary information.
5730 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5734 *) Add the possibility to add extra information to the memory leak
5735 detecting output, to form tracebacks, showing from where each
5736 allocation was originated: CRYPTO_push_info("constant string") adds
5737 the string plus current file name and line number to a per-thread
5738 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5739 is like calling CYRPTO_pop_info() until the stack is empty.
5740 Also updated memory leak detection code to be multi-thread-safe.
5743 *) Add options -text and -noout to pkcs7 utility and delete the
5744 encryption options which never did anything. Update docs.
5747 *) Add options to some of the utilities to allow the pass phrase
5748 to be included on either the command line (not recommended on
5749 OSes like Unix) or read from the environment. Update the
5750 manpages and fix a few bugs.
5753 *) Add a few manpages for some of the openssl commands.
5756 *) Fix the -revoke option in ca. It was freeing up memory twice,
5757 leaking and not finding already revoked certificates.
5760 *) Extensive changes to support certificate auxiliary information.
5761 This involves the use of X509_CERT_AUX structure and X509_AUX
5762 functions. An X509_AUX function such as PEM_read_X509_AUX()
5763 can still read in a certificate file in the usual way but it
5764 will also read in any additional "auxiliary information". By
5765 doing things this way a fair degree of compatibility can be
5766 retained: existing certificates can have this information added
5767 using the new 'x509' options.
5769 Current auxiliary information includes an "alias" and some trust
5770 settings. The trust settings will ultimately be used in enhanced
5771 certificate chain verification routines: currently a certificate
5772 can only be trusted if it is self signed and then it is trusted
5776 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5777 The problem was that one of the replacement routines had not been working
5778 since SSLeay releases. For now the offending routine has been replaced
5779 with non-optimised assembler. Even so, this now gives around 95%
5780 performance improvement for 1024 bit RSA signs.
5783 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5784 handling. Most clients have the effective key size in bits equal to
5785 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5786 A few however don't do this and instead use the size of the decrypted key
5787 to determine the RC2 key length and the AlgorithmIdentifier to determine
5788 the effective key length. In this case the effective key length can still
5789 be 40 bits but the key length can be 168 bits for example. This is fixed
5790 by manually forcing an RC2 key into the EVP_PKEY structure because the
5791 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5792 the key length and effective key length are equal.
5795 *) Add a bunch of functions that should simplify the creation of
5796 X509_NAME structures. Now you should be able to do:
5797 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5798 and have it automatically work out the correct field type and fill in
5799 the structures. The more adventurous can try:
5800 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5801 and it will (hopefully) work out the correct multibyte encoding.
5804 *) Change the 'req' utility to use the new field handling and multibyte
5805 copy routines. Before the DN field creation was handled in an ad hoc
5806 way in req, ca, and x509 which was rather broken and didn't support
5807 BMPStrings or UTF8Strings. Since some software doesn't implement
5808 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5809 using the dirstring_type option. See the new comment in the default
5810 openssl.cnf for more info.
5813 *) Make crypto/rand/md_rand.c more robust:
5814 - Assure unique random numbers after fork().
5815 - Make sure that concurrent threads access the global counter and
5816 md serializably so that we never lose entropy in them
5817 or use exactly the same state in multiple threads.
5818 Access to the large state is not always serializable because
5819 the additional locking could be a performance killer, and
5820 md should be large enough anyway.
5823 *) New file apps/app_rand.c with commonly needed functionality
5824 for handling the random seed file.
5826 Use the random seed file in some applications that previously did not:
5828 dsaparam -genkey (which also ignored its '-rand' option),
5831 x509 (when signing).
5832 Except on systems with /dev/urandom, it is crucial to have a random
5833 seed file at least for key creation, DSA signing, and for DH exchanges;
5834 for RSA signatures we could do without one.
5836 gendh and gendsa (unlike genrsa) used to read only the first byte
5837 of each file listed in the '-rand' option. The function as previously
5838 found in genrsa is now in app_rand.c and is used by all programs
5839 that support '-rand'.
5842 *) In RAND_write_file, use mode 0600 for creating files;
5843 don't just chmod when it may be too late.
5846 *) Report an error from X509_STORE_load_locations
5847 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5850 *) New function ASN1_mbstring_copy() this copies a string in either
5851 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5852 into an ASN1_STRING type. A mask of permissible types is passed
5853 and it chooses the "minimal" type to use or an error if not type
5857 *) Add function equivalents to the various macros in asn1.h. The old
5858 macros are retained with an M_ prefix. Code inside the library can
5859 use the M_ macros. External code (including the openssl utility)
5860 should *NOT* in order to be "shared library friendly".
5863 *) Add various functions that can check a certificate's extensions
5864 to see if it usable for various purposes such as SSL client,
5865 server or S/MIME and CAs of these types. This is currently
5866 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5867 verification. Also added a -purpose flag to x509 utility to
5868 print out all the purposes.
5871 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5875 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5876 for, obtain and decode and extension and obtain its critical flag.
5877 This allows all the necessary extension code to be handled in a
5878 single function call.
5881 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5882 platforms. See crypto/rc4/rc4_enc.c for further details.
5885 *) New -noout option to asn1parse. This causes no output to be produced
5886 its main use is when combined with -strparse and -out to extract data
5887 from a file (which may not be in ASN.1 format).
5890 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5891 when producing the local key id.
5892 [Richard Levitte <levitte@stacken.kth.se>]
5894 *) New option -dhparam in s_server. This allows a DH parameter file to be
5895 stated explicitly. If it is not stated then it tries the first server
5896 certificate file. The previous behaviour hard coded the filename
5900 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5901 a public key to be input or output. For example:
5902 openssl rsa -in key.pem -pubout -out pubkey.pem
5903 Also added necessary DSA public key functions to handle this.
5906 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5907 in the message. This was handled by allowing
5908 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5909 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5911 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5912 to the end of the strings whereas this didn't. This would cause problems
5913 if strings read with d2i_ASN1_bytes() were later modified.
5914 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5916 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5917 data and it contains EOF it will end up returning an error. This is
5918 caused by input 46 bytes long. The cause is due to the way base64
5919 BIOs find the start of base64 encoded data. They do this by trying a
5920 trial decode on each line until they find one that works. When they
5921 do a flag is set and it starts again knowing it can pass all the
5922 data directly through the decoder. Unfortunately it doesn't reset
5923 the context it uses. This means that if EOF is reached an attempt
5924 is made to pass two EOFs through the context and this causes the
5925 resulting error. This can also cause other problems as well. As is
5926 usual with these problems it takes *ages* to find and the fix is
5927 trivial: move one line.
5928 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5930 *) Ugly workaround to get s_client and s_server working under Windows. The
5931 old code wouldn't work because it needed to select() on sockets and the
5932 tty (for keypresses and to see if data could be written). Win32 only
5933 supports select() on sockets so we select() with a 1s timeout on the
5934 sockets and then see if any characters are waiting to be read, if none
5935 are present then we retry, we also assume we can always write data to
5936 the tty. This isn't nice because the code then blocks until we've
5937 received a complete line of data and it is effectively polling the
5938 keyboard at 1s intervals: however it's quite a bit better than not
5939 working at all :-) A dedicated Windows application might handle this
5940 with an event loop for example.
5943 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5944 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5945 will be called when RSA_sign() and RSA_verify() are used. This is useful
5946 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5947 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5948 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5949 This necessitated the support of an extra signature type NID_md5_sha1
5950 for SSL signatures and modifications to the SSL library to use it instead
5951 of calling RSA_public_decrypt() and RSA_private_encrypt().
5954 *) Add new -verify -CAfile and -CApath options to the crl program, these
5955 will lookup a CRL issuers certificate and verify the signature in a
5956 similar way to the verify program. Tidy up the crl program so it
5957 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5958 less strict. It will now permit CRL extensions even if it is not
5959 a V2 CRL: this will allow it to tolerate some broken CRLs.
5962 *) Initialize all non-automatic variables each time one of the openssl
5963 sub-programs is started (this is necessary as they may be started
5964 multiple times from the "OpenSSL>" prompt).
5965 [Lennart Bang, Bodo Moeller]
5967 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5968 removing all other RSA functionality (this is what NO_RSA does). This
5969 is so (for example) those in the US can disable those operations covered
5970 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5974 *) Non-copying interface to BIO pairs.
5975 (still largely untested)
5978 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5979 ASCII string. This was handled independently in various places before.
5982 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5983 UTF8 strings a character at a time.
5986 *) Use client_version from client hello to select the protocol
5987 (s23_srvr.c) and for RSA client key exchange verification
5988 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5991 *) Add various utility functions to handle SPKACs, these were previously
5992 handled by poking round in the structure internals. Added new function
5993 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5994 print, verify and generate SPKACs. Based on an original idea from
5995 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5998 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6001 *) Allow the config file extension section to be overwritten on the
6002 command line. Based on an original idea from Massimiliano Pala
6003 <madwolf@comune.modena.it>. The new option is called -extensions
6004 and can be applied to ca, req and x509. Also -reqexts to override
6005 the request extensions in req and -crlexts to override the crl extensions
6009 *) Add new feature to the SPKAC handling in ca. Now you can include
6010 the same field multiple times by preceding it by "XXXX." for example:
6013 this is the same syntax as used in the req config file.
6016 *) Allow certificate extensions to be added to certificate requests. These
6017 are specified in a 'req_extensions' option of the req section of the
6018 config file. They can be printed out with the -text option to req but
6019 are otherwise ignored at present.
6022 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6023 data read consists of only the final block it would not decrypted because
6024 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6025 A misplaced 'break' also meant the decrypted final block might not be
6026 copied until the next read.
6029 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6030 a few extra parameters to the DH structure: these will be useful if
6031 for example we want the value of 'q' or implement X9.42 DH.
6034 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6035 provides hooks that allow the default DSA functions or functions on a
6036 "per key" basis to be replaced. This allows hardware acceleration and
6037 hardware key storage to be handled without major modification to the
6038 library. Also added low level modexp hooks and CRYPTO_EX structure and
6039 associated functions.
6042 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6043 as "read only": it can't be written to and the buffer it points to will
6044 not be freed. Reading from a read only BIO is much more efficient than
6045 a normal memory BIO. This was added because there are several times when
6046 an area of memory needs to be read from a BIO. The previous method was
6047 to create a memory BIO and write the data to it, this results in two
6048 copies of the data and an O(n^2) reading algorithm. There is a new
6049 function BIO_new_mem_buf() which creates a read only memory BIO from
6050 an area of memory. Also modified the PKCS#7 routines to use read only
6054 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6055 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6056 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6057 but a retry condition occured while trying to read the rest.
6060 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6061 NID_pkcs7_encrypted by default: this was wrong since this should almost
6062 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6063 the encrypted data type: this is a more sensible place to put it and it
6064 allows the PKCS#12 code to be tidied up that duplicated this
6068 *) Changed obj_dat.pl script so it takes its input and output files on
6069 the command line. This should avoid shell escape redirection problems
6073 *) Initial support for certificate extension requests, these are included
6074 in things like Xenroll certificate requests. Included functions to allow
6075 extensions to be obtained and added.
6078 *) -crlf option to s_client and s_server for sending newlines as
6079 CRLF (as required by many protocols).
6082 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6084 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6085 [Ralf S. Engelschall]
6087 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6088 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6090 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6094 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6095 DH parameters/keys (q is lost during that conversion, but the resulting
6096 DH parameters contain its length).
6098 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6099 much faster than DH_generate_parameters (which creates parameters
6100 where p = 2*q + 1), and also the smaller q makes DH computations
6101 much more efficient (160-bit exponentiation instead of 1024-bit
6102 exponentiation); so this provides a convenient way to support DHE
6103 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6104 utter importance to use
6105 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6107 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6108 when such DH parameters are used, because otherwise small subgroup
6109 attacks may become possible!
6112 *) Avoid memory leak in i2d_DHparams.
6115 *) Allow the -k option to be used more than once in the enc program:
6116 this allows the same encrypted message to be read by multiple recipients.
6119 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6120 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6121 it will always use the numerical form of the OID, even if it has a short
6125 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6126 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6127 otherwise bn_mod_exp was called. In the case of hardware keys for example
6128 no private key components need be present and it might store extra data
6129 in the RSA structure, which cannot be accessed from bn_mod_exp.
6130 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6131 private key operations.
6134 *) Added support for SPARC Linux.
6137 *) pem_password_cb function type incompatibly changed from
6138 typedef int pem_password_cb(char *buf, int size, int rwflag);
6140 ....(char *buf, int size, int rwflag, void *userdata);
6141 so that applications can pass data to their callbacks:
6142 The PEM[_ASN1]_{read,write}... functions and macros now take an
6143 additional void * argument, which is just handed through whenever
6144 the password callback is called.
6145 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6147 New function SSL_CTX_set_default_passwd_cb_userdata.
6149 Compatibility note: As many C implementations push function arguments
6150 onto the stack in reverse order, the new library version is likely to
6151 interoperate with programs that have been compiled with the old
6152 pem_password_cb definition (PEM_whatever takes some data that
6153 happens to be on the stack as its last argument, and the callback
6154 just ignores this garbage); but there is no guarantee whatsoever that
6157 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6158 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6159 problems not only on Windows, but also on some Unix platforms.
6160 To avoid problematic command lines, these definitions are now in an
6161 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6162 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6165 *) MIPS III/IV assembler module is reimplemented.
6168 *) More DES library cleanups: remove references to srand/rand and
6169 delete an unused file.
6172 *) Add support for the the free Netwide assembler (NASM) under Win32,
6173 since not many people have MASM (ml) and it can be hard to obtain.
6174 This is currently experimental but it seems to work OK and pass all
6175 the tests. Check out INSTALL.W32 for info.
6178 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6179 without temporary keys kept an extra copy of the server key,
6180 and connections with temporary keys did not free everything in case
6184 *) New function RSA_check_key and new openssl rsa option -check
6185 for verifying the consistency of RSA keys.
6186 [Ulf Moeller, Bodo Moeller]
6188 *) Various changes to make Win32 compile work:
6189 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6190 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6191 comparison" warnings.
6192 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6195 *) Add a debugging option to PKCS#5 v2 key generation function: when
6196 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6197 derived keys are printed to stderr.
6200 *) Copy the flags in ASN1_STRING_dup().
6201 [Roman E. Pavlov <pre@mo.msk.ru>]
6203 *) The x509 application mishandled signing requests containing DSA
6204 keys when the signing key was also DSA and the parameters didn't match.
6206 It was supposed to omit the parameters when they matched the signing key:
6207 the verifying software was then supposed to automatically use the CA's
6208 parameters if they were absent from the end user certificate.
6210 Omitting parameters is no longer recommended. The test was also
6211 the wrong way round! This was probably due to unusual behaviour in
6212 EVP_cmp_parameters() which returns 1 if the parameters match.
6213 This meant that parameters were omitted when they *didn't* match and
6214 the certificate was useless. Certificates signed with 'ca' didn't have
6216 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6218 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6219 The interface is as follows:
6220 Applications can use
6221 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6222 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6223 "off" is now the default.
6224 The library internally uses
6225 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6226 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6227 to disable memory-checking temporarily.
6229 Some inconsistent states that previously were possible (and were
6230 even the default) are now avoided.
6232 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6233 with each memory chunk allocated; this is occasionally more helpful
6234 than just having a counter.
6236 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6238 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6242 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6243 which largely parallels "options", but is for changing API behaviour,
6244 whereas "options" are about protocol behaviour.
6245 Initial "mode" flags are:
6247 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6248 a single record has been written.
6249 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6250 retries use the same buffer location.
6251 (But all of the contents must be
6255 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6258 *) Fix problems with no-hmac etc.
6259 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6261 *) New functions RSA_get_default_method(), RSA_set_method() and
6262 RSA_get_method(). These allows replacement of RSA_METHODs without having
6263 to mess around with the internals of an RSA structure.
6266 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6267 Also really enable memory leak checks in openssl.c and in some
6269 [Chad C. Mulligan, Bodo Moeller]
6271 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6272 up the length of negative integers. This has now been simplified to just
6273 store the length when it is first determined and use it later, rather
6274 than trying to keep track of where data is copied and updating it to
6276 [Steve Henson, reported by Brien Wheeler
6277 <bwheeler@authentica-security.com>]
6279 *) Add a new function PKCS7_signatureVerify. This allows the verification
6280 of a PKCS#7 signature but with the signing certificate passed to the
6281 function itself. This contrasts with PKCS7_dataVerify which assumes the
6282 certificate is present in the PKCS#7 structure. This isn't always the
6283 case: certificates can be omitted from a PKCS#7 structure and be
6284 distributed by "out of band" means (such as a certificate database).
6287 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6288 function prototypes in pem.h, also change util/mkdef.pl to add the
6289 necessary function names.
6292 *) mk1mf.pl (used by Windows builds) did not properly read the
6293 options set by Configure in the top level Makefile, and Configure
6294 was not even able to write more than one option correctly.
6295 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6298 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6299 file to be loaded from a BIO or FILE pointer. The BIO version will
6300 for example allow memory BIOs to contain config info.
6303 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6304 Whoever hopes to achieve shared-library compatibility across versions
6305 must use this, not the compile-time macro.
6306 (Exercise 0.9.4: Which is the minimum library version required by
6308 Note: All this applies only to multi-threaded programs, others don't
6312 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6313 through a BIO pair triggered the default case, i.e.
6314 SSLerr(...,SSL_R_UNKNOWN_STATE).
6317 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6318 can use the SSL library even if none of the specific BIOs is
6322 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6323 for the encoded length.
6324 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6326 *) Add initial documentation of the X509V3 functions.
6329 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6330 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6331 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6332 secure PKCS#8 private key format with a high iteration count.
6335 *) Fix determination of Perl interpreter: A perl or perl5
6336 _directory_ in $PATH was also accepted as the interpreter.
6337 [Ralf S. Engelschall]
6339 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6340 wrong with it but it was very old and did things like calling
6341 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6345 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6346 to use the new extension code.
6349 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6350 with macros. This should make it easier to change their form, add extra
6351 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6355 *) Add to configuration table a new entry that can specify an alternative
6356 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6357 according to Mark Crispin <MRC@Panda.COM>.
6361 *) DES CBC did not update the IV. Weird.
6364 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6365 Changing the behaviour of the former might break existing programs --
6366 where IV updating is needed, des_ncbc_encrypt can be used.
6369 *) When bntest is run from "make test" it drives bc to check its
6370 calculations, as well as internally checking them. If an internal check
6371 fails, it needs to cause bc to give a non-zero result or make test carries
6372 on without noticing the failure. Fixed.
6375 *) DES library cleanups.
6378 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6379 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6380 ciphers. NOTE: although the key derivation function has been verified
6381 against some published test vectors it has not been extensively tested
6382 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6386 *) Instead of "mkdir -p", which is not fully portable, use new
6387 Perl script "util/mkdir-p.pl".
6390 *) Rewrite the way password based encryption (PBE) is handled. It used to
6391 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6392 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6393 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6394 the 'parameter' field of the AlgorithmIdentifier is passed to the
6395 underlying key generation function so it must do its own ASN1 parsing.
6396 This has also changed the EVP_PBE_CipherInit() function which now has a
6397 'parameter' argument instead of literal salt and iteration count values
6398 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6401 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6402 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6403 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6404 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6405 value was just used as a "magic string" and not used directly its
6406 value doesn't matter.
6409 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6413 *) "linux-sparc64" configuration (ultrapenguin).
6414 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6415 "linux-sparc" configuration.
6416 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6418 *) config now generates no-xxx options for missing ciphers.
6421 *) Support the EBCDIC character set (work in progress).
6422 File ebcdic.c not yet included because it has a different license.
6423 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6425 *) Support BS2000/OSD-POSIX.
6426 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6428 *) Make callbacks for key generation use void * instead of char *.
6431 *) Make S/MIME samples compile (not yet tested).
6434 *) Additional typesafe stacks.
6437 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6441 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6443 *) New configuration variant "sco5-gcc".
6445 *) Updated some demos.
6446 [Sean O Riordain, Wade Scholine]
6448 *) Add missing BIO_free at exit of pkcs12 application.
6451 *) Fix memory leak in conf.c.
6454 *) Updates for Win32 to assembler version of MD5.
6457 *) Set #! path to perl in apps/der_chop to where we found it
6458 instead of using a fixed path.
6461 *) SHA library changes for irix64-mips4-cc.
6464 *) Improvements for VMS support.
6468 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6470 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6471 This also avoids the problems with SC4.2 and unpatched SC5.
6472 [Andy Polyakov <appro@fy.chalmers.se>]
6474 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6475 These are required because of the typesafe stack would otherwise break
6476 existing code. If old code used a structure member which used to be STACK
6477 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6478 sk_num or sk_value it would produce an error because the num, data members
6479 are not present in STACK_OF. Now it just produces a warning. sk_set
6480 replaces the old method of assigning a value to sk_value
6481 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6482 that does this will no longer work (and should use sk_set instead) but
6483 this could be regarded as a "questionable" behaviour anyway.
6486 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6487 correctly handle encrypted S/MIME data.
6490 *) Change type of various DES function arguments from des_cblock
6491 (which means, in function argument declarations, pointer to char)
6492 to des_cblock * (meaning pointer to array with 8 char elements),
6493 which allows the compiler to do more typechecking; it was like
6494 that back in SSLeay, but with lots of ugly casts.
6496 Introduce new type const_des_cblock.
6499 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6500 problems: find RecipientInfo structure that matches recipient certificate
6501 and initialise the ASN1 structures properly based on passed cipher.
6504 *) Belatedly make the BN tests actually check the results.
6507 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6508 to and from BNs: it was completely broken. New compilation option
6509 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6510 key elements as negative integers.
6513 *) Reorganize and speed up MD5.
6514 [Andy Polyakov <appro@fy.chalmers.se>]
6517 [Richard Levitte <richard@levitte.org>]
6519 *) New option -out to asn1parse to allow the parsed structure to be
6520 output to a file. This is most useful when combined with the -strparse
6521 option to examine the output of things like OCTET STRINGS.
6524 *) Make SSL library a little more fool-proof by not requiring any longer
6525 that SSL_set_{accept,connect}_state be called before
6526 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6527 in many applications because usually everything *appeared* to work as
6528 intended anyway -- now it really works as intended).
6531 *) Move openssl.cnf out of lib/.
6534 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6535 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6536 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6537 [Ralf S. Engelschall]
6539 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6540 handle PKCS#7 enveloped data properly.
6541 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6543 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6544 copying pointers. The cert_st handling is changed by this in
6545 various ways (and thus what used to be known as ctx->default_cert
6546 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6547 any longer when s->cert does not give us what we need).
6548 ssl_cert_instantiate becomes obsolete by this change.
6549 As soon as we've got the new code right (possibly it already is?),
6550 we have solved a couple of bugs of the earlier code where s->cert
6551 was used as if it could not have been shared with other SSL structures.
6553 Note that using the SSL API in certain dirty ways now will result
6554 in different behaviour than observed with earlier library versions:
6555 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6556 does not influence s as it used to.
6558 In order to clean up things more thoroughly, inside SSL_SESSION
6559 we don't use CERT any longer, but a new structure SESS_CERT
6560 that holds per-session data (if available); currently, this is
6561 the peer's certificate chain and, for clients, the server's certificate
6562 and temporary key. CERT holds only those values that can have
6563 meaningful defaults in an SSL_CTX.
6566 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6567 from the internal representation. Various PKCS#7 fixes: remove some
6568 evil casts and set the enc_dig_alg field properly based on the signing
6572 *) Allow PKCS#12 password to be set from the command line or the
6573 environment. Let 'ca' get its config file name from the environment
6574 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6578 *) Allow certificate policies extension to use an IA5STRING for the
6579 organization field. This is contrary to the PKIX definition but
6580 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6584 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6585 without disallowing inline assembler and the like for non-pedantic builds.
6588 *) Support Borland C++ builder.
6589 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6594 *) SHA-1 cleanups and performance enhancements.
6595 [Andy Polyakov <appro@fy.chalmers.se>]
6597 *) Sparc v8plus assembler for the bignum library.
6598 [Andy Polyakov <appro@fy.chalmers.se>]
6600 *) Accept any -xxx and +xxx compiler options in Configure.
6603 *) Update HPUX configuration.
6606 *) Add missing sk_<type>_unshift() function to safestack.h
6607 [Ralf S. Engelschall]
6609 *) New function SSL_CTX_use_certificate_chain_file that sets the
6610 "extra_cert"s in addition to the certificate. (This makes sense
6611 only for "PEM" format files, as chains as a whole are not
6615 *) Support verify_depth from the SSL API.
6616 x509_vfy.c had what can be considered an off-by-one-error:
6617 Its depth (which was not part of the external interface)
6618 was actually counting the number of certificates in a chain;
6619 now it really counts the depth.
6622 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6623 instead of X509err, which often resulted in confusing error
6624 messages since the error codes are not globally unique
6625 (e.g. an alleged error in ssl3_accept when a certificate
6626 didn't match the private key).
6628 *) New function SSL_CTX_set_session_id_context that allows to set a default
6629 value (so that you don't need SSL_set_session_id_context for each
6630 connection using the SSL_CTX).
6633 *) OAEP decoding bug fix.
6636 *) Support INSTALL_PREFIX for package builders, as proposed by
6640 *) New Configure options "threads" and "no-threads". For systems
6641 where the proper compiler options are known (currently Solaris
6642 and Linux), "threads" is the default.
6645 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6648 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6649 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6650 such as /usr/local/bin.
6653 *) "make linux-shared" to build shared libraries.
6654 [Niels Poppe <niels@netbox.org>]
6656 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6659 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6660 extension adding in x509 utility.
6663 *) Remove NOPROTO sections and error code comments.
6666 *) Partial rewrite of the DEF file generator to now parse the ANSI
6670 *) New Configure options --prefix=DIR and --openssldir=DIR.
6673 *) Complete rewrite of the error code script(s). It is all now handled
6674 by one script at the top level which handles error code gathering,
6675 header rewriting and C source file generation. It should be much better
6676 than the old method: it now uses a modified version of Ulf's parser to
6677 read the ANSI prototypes in all header files (thus the old K&R definitions
6678 aren't needed for error creation any more) and do a better job of
6679 translating function codes into names. The old 'ASN1 error code imbedded
6680 in a comment' is no longer necessary and it doesn't use .err files which
6681 have now been deleted. Also the error code call doesn't have to appear all
6682 on one line (which resulted in some large lines...).
6685 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6688 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6689 0 (which usually indicates a closed connection), but continue reading.
6692 *) Fix some race conditions.
6695 *) Add support for CRL distribution points extension. Add Certificate
6696 Policies and CRL distribution points documentation.
6699 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6702 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6703 8 of keying material. Merlin has also confirmed interop with this fix
6704 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6705 [Merlin Hughes <merlin@baltimore.ie>]
6707 *) Fix lots of warnings.
6708 [Richard Levitte <levitte@stacken.kth.se>]
6710 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6711 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6712 [Richard Levitte <levitte@stacken.kth.se>]
6714 *) Fix problems with sizeof(long) == 8.
6715 [Andy Polyakov <appro@fy.chalmers.se>]
6717 *) Change functions to ANSI C.
6720 *) Fix typos in error codes.
6721 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6723 *) Remove defunct assembler files from Configure.
6726 *) SPARC v8 assembler BIGNUM implementation.
6727 [Andy Polyakov <appro@fy.chalmers.se>]
6729 *) Support for Certificate Policies extension: both print and set.
6730 Various additions to support the r2i method this uses.
6733 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6734 return a const string when you are expecting an allocated buffer.
6737 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6738 types DirectoryString and DisplayText.
6741 *) Add code to allow r2i extensions to access the configuration database,
6742 add an LHASH database driver and add several ctx helper functions.
6745 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6746 fail when they extended the size of a BIGNUM.
6749 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6750 support typesafe stack.
6753 *) Fix typo in SSL_[gs]et_options().
6754 [Nils Frostberg <nils@medcom.se>]
6756 *) Delete various functions and files that belonged to the (now obsolete)
6757 old X509V3 handling code.
6760 *) New Configure option "rsaref".
6763 *) Don't auto-generate pem.h.
6766 *) Introduce type-safe ASN.1 SETs.
6769 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6770 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6772 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6773 that links with OpenSSL (well at least cause lots of warnings), but fear
6774 not: the conversion is trivial, and it eliminates loads of evil casts. A
6775 few STACKed things have been converted already. Feel free to convert more.
6776 In the fullness of time, I'll do away with the STACK type altogether.
6779 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6780 specified in <certfile> by updating the entry in the index.txt file.
6781 This way one no longer has to edit the index.txt file manually for
6782 revoking a certificate. The -revoke option does the gory details now.
6783 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6785 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6786 `-text' option at all and this way the `-noout -text' combination was
6787 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6788 [Ralf S. Engelschall]
6790 *) Make sure a corresponding plain text error message exists for the
6791 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6792 verify callback function determined that a certificate was revoked.
6793 [Ralf S. Engelschall]
6795 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6796 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6797 all available cipers including rc5, which was forgotten until now.
6798 In order to let the testing shell script know which algorithms
6799 are available, a new (up to now undocumented) command
6800 "openssl list-cipher-commands" is used.
6803 *) Bugfix: s_client occasionally would sleep in select() when
6804 it should have checked SSL_pending() first.
6807 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6808 the raw DSA values prior to ASN.1 encoding.
6811 *) Tweaks to Configure
6812 [Niels Poppe <niels@netbox.org>]
6814 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6818 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6821 *) New config option to avoid instructions that are illegal on the 80386.
6822 The default code is faster, but requires at least a 486.
6825 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6826 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6827 same as SSL2_VERSION anyway.
6830 *) New "-showcerts" option for s_client.
6833 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6834 application. Various cleanups and fixes.
6837 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6838 modify error routines to work internally. Add error codes and PBE init
6839 to library startup routines.
6842 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6843 packing functions to asn1 and evp. Changed function names and error
6844 codes along the way.
6847 *) PKCS12 integration: and so it begins... First of several patches to
6848 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6849 objects to objects.h
6852 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6853 and display support for Thawte strong extranet extension.
6856 *) Add LinuxPPC support.
6857 [Jeff Dubrule <igor@pobox.org>]
6859 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6860 bn_div_words in alpha.s.
6861 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6863 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6864 OAEP isn't supported when OpenSSL is built with RSAref.
6865 [Ulf Moeller <ulf@fitug.de>]
6867 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6868 so they no longer are missing under -DNOPROTO.
6869 [Soren S. Jorvang <soren@t.dk>]
6872 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6874 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6875 doesn't work when the session is reused. Coming soon!
6878 *) Fix a security hole, that allows sessions to be reused in the wrong
6879 context thus bypassing client cert protection! All software that uses
6880 client certs and session caches in multiple contexts NEEDS PATCHING to
6881 allow session reuse! A fuller solution is in the works.
6882 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6884 *) Some more source tree cleanups (removed obsolete files
6885 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6886 permission on "config" script to be executable) and a fix for the INSTALL
6888 [Ulf Moeller <ulf@fitug.de>]
6890 *) Remove some legacy and erroneous uses of malloc, free instead of
6892 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6894 *) Make rsa_oaep_test return non-zero on error.
6895 [Ulf Moeller <ulf@fitug.de>]
6897 *) Add support for native Solaris shared libraries. Configure
6898 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6899 if someone would make that last step automatic.
6900 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6902 *) ctx_size was not built with the right compiler during "make links". Fixed.
6905 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6906 except NULL ciphers". This means the default cipher list will no longer
6907 enable NULL ciphers. They need to be specifically enabled e.g. with
6908 the string "DEFAULT:eNULL".
6911 *) Fix to RSA private encryption routines: if p < q then it would
6912 occasionally produce an invalid result. This will only happen with
6913 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6916 *) Be less restrictive and allow also `perl util/perlpath.pl
6917 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6918 because this way one can also use an interpreter named `perl5' (which is
6919 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6920 installed as `perl').
6921 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6923 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6924 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6926 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6927 advapi32.lib to Win32 build and change the pem test comparision
6928 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6929 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6930 and crypto/des/ede_cbcm_enc.c.
6933 *) DES quad checksum was broken on big-endian architectures. Fixed.
6936 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6937 Win32 test batch file so it (might) work again. The Win32 test batch file
6938 is horrible: I feel ill....
6941 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6942 in e_os.h. Audit of header files to check ANSI and non ANSI
6943 sections: 10 functions were absent from non ANSI section and not exported
6944 from Windows DLLs. Fixed up libeay.num for new functions.
6947 *) Make `openssl version' output lines consistent.
6948 [Ralf S. Engelschall]
6950 *) Fix Win32 symbol export lists for BIO functions: Added
6951 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6952 to ms/libeay{16,32}.def.
6953 [Ralf S. Engelschall]
6955 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6956 fine under Unix and passes some trivial tests I've now added. But the
6957 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6958 added to make sure no one expects that this stuff really works in the
6959 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6960 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6962 [Ralf S. Engelschall]
6964 *) Fix the generation of two part addresses in perl.
6965 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6967 *) Add config entry for Linux on MIPS.
6968 [John Tobey <jtobey@channel1.com>]
6970 *) Make links whenever Configure is run, unless we are on Windoze.
6973 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6974 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6978 *) Add a useful kludge to allow package maintainers to specify compiler and
6979 other platforms details on the command line without having to patch the
6980 Configure script everytime: One now can use ``perl Configure
6981 <id>:<details>'', i.e. platform ids are allowed to have details appended
6982 to them (seperated by colons). This is treated as there would be a static
6983 pre-configured entry in Configure's %table under key <id> with value
6984 <details> and ``perl Configure <id>'' is called. So, when you want to
6985 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6986 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6987 now, which overrides the FreeBSD-elf entry on-the-fly.
6988 [Ralf S. Engelschall]
6990 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6993 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6994 on the `perl Configure ...' command line. This way one can compile
6995 OpenSSL libraries with Position Independent Code (PIC) which is needed
6996 for linking it into DSOs.
6997 [Ralf S. Engelschall]
6999 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7003 *) Cleaned up the LICENSE document: The official contact for any license
7004 questions now is the OpenSSL core team under openssl-core@openssl.org.
7005 And add a paragraph about the dual-license situation to make sure people
7006 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7007 to the OpenSSL toolkit.
7008 [Ralf S. Engelschall]
7010 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7011 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7012 Additonally cleaned up the `make links' target: Remove unnecessary
7013 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7014 to speed processing and no longer clutter the display with confusing
7015 stuff. Instead only the actually done links are displayed.
7016 [Ralf S. Engelschall]
7018 *) Permit null encryption ciphersuites, used for authentication only. It used
7019 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7020 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7024 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7025 signed attributes when verifying signatures (this would break them),
7026 the detached data encoding was wrong and public keys obtained using
7027 X509_get_pubkey() weren't freed.
7030 *) Add text documentation for the BUFFER functions. Also added a work around
7031 to a Win95 console bug. This was triggered by the password read stuff: the
7032 last character typed gets carried over to the next fread(). If you were
7033 generating a new cert request using 'req' for example then the last
7034 character of the passphrase would be CR which would then enter the first
7038 *) Added the new `Includes OpenSSL Cryptography Software' button as
7039 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7040 button and can be used by applications based on OpenSSL to show the
7041 relationship to the OpenSSL project.
7042 [Ralf S. Engelschall]
7044 *) Remove confusing variables in function signatures in files
7045 ssl/ssl_lib.c and ssl/ssl.h.
7046 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7048 *) Don't install bss_file.c under PREFIX/include/
7049 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7051 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7052 functions that return function pointers and has support for NT specific
7053 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7054 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7055 unsigned to signed types: this was killing the Win32 compile.
7058 *) Add new certificate file to stack functions,
7059 SSL_add_dir_cert_subjects_to_stack() and
7060 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7061 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7062 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7063 This means that Apache-SSL and similar packages don't have to mess around
7064 to add as many CAs as they want to the preferred list.
7067 *) Experiment with doxygen documentation. Currently only partially applied to
7069 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7070 openssl.doxy as the configuration file.
7073 *) Get rid of remaining C++-style comments which strict C compilers hate.
7074 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7076 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7077 compiled in by default: it has problems with large keys.
7080 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7081 DH private keys and/or callback functions which directly correspond to
7082 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7083 is needed for applications which have to configure certificates on a
7084 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7086 For the RSA certificate situation is makes no difference, but
7087 for the DSA certificate situation this fixes the "no shared cipher"
7088 problem where the OpenSSL cipher selection procedure failed because the
7089 temporary keys were not overtaken from the context and the API provided
7090 no way to reconfigure them.
7091 The new functions now let applications reconfigure the stuff and they
7092 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7093 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7094 non-public-API function ssl_cert_instantiate() is used as a helper
7095 function and also to reduce code redundancy inside ssl_rsa.c.
7096 [Ralf S. Engelschall]
7098 *) Move s_server -dcert and -dkey options out of the undocumented feature
7099 area because they are useful for the DSA situation and should be
7100 recognized by the users.
7101 [Ralf S. Engelschall]
7103 *) Fix the cipher decision scheme for export ciphers: the export bits are
7104 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7105 SSL_EXP_MASK. So, the original variable has to be used instead of the
7106 already masked variable.
7107 [Richard Levitte <levitte@stacken.kth.se>]
7109 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7110 [Richard Levitte <levitte@stacken.kth.se>]
7112 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7113 from `int' to `unsigned int' because it's a length and initialized by
7114 EVP_DigestFinal() which expects an `unsigned int *'.
7115 [Richard Levitte <levitte@stacken.kth.se>]
7117 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7118 script. Instead use the usual Shell->Perl transition trick.
7119 [Ralf S. Engelschall]
7121 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7122 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7123 -noout -modulus' as it's already the case for `openssl rsa -noout
7124 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7125 currently the public key is printed (a decision which was already done by
7126 `openssl dsa -modulus' in the past) which serves a similar purpose.
7127 Additionally the NO_RSA no longer completely removes the whole -modulus
7128 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7130 [Ralf S. Engelschall]
7132 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7133 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7134 [Arne Ansper <arne@ats.cyber.ee>]
7136 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7137 to be added. Now both 'req' and 'ca' can use new objects defined in the
7141 *) Add cool BIO that does syslog (or event log on NT).
7142 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7144 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7145 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7146 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7147 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7150 *) Add preliminary config info for new extension code.
7153 *) Make RSA_NO_PADDING really use no padding.
7154 [Ulf Moeller <ulf@fitug.de>]
7156 *) Generate errors when private/public key check is done.
7159 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7160 for some CRL extensions and new objects added.
7163 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7164 key usage extension and fuller support for authority key id.
7167 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7168 padding method for RSA, which is recommended for new applications in PKCS
7169 #1 v2.0 (RFC 2437, October 1998).
7170 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7171 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7172 against Bleichbacher's attack on RSA.
7173 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7176 *) Updates to the new SSL compression code
7177 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7179 *) Fix so that the version number in the master secret, when passed
7180 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7181 (because the server will not accept higher), that the version number
7182 is 0x03,0x01, not 0x03,0x00
7183 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7185 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7186 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7187 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7190 *) Support for RAW extensions where an arbitrary extension can be
7191 created by including its DER encoding. See apps/openssl.cnf for
7195 *) Make sure latest Perl versions don't interpret some generated C array
7196 code as Perl array code in the crypto/err/err_genc.pl script.
7197 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7199 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7200 not many people have the assembler. Various Win32 compilation fixes and
7201 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7205 *) Modify configure script 'Configure' to automatically create crypto/date.h
7206 file under Win32 and also build pem.h from pem.org. New script
7207 util/mkfiles.pl to create the MINFO file on environments that can't do a
7208 'make files': perl util/mkfiles.pl >MINFO should work.
7211 *) Major rework of DES function declarations, in the pursuit of correctness
7212 and purity. As a result, many evil casts evaporated, and some weirdness,
7213 too. You may find this causes warnings in your code. Zapping your evil
7214 casts will probably fix them. Mostly.
7217 *) Fix for a typo in asn1.h. Bug fix to object creation script
7218 obj_dat.pl. It considered a zero in an object definition to mean
7219 "end of object": none of the objects in objects.h have any zeros
7220 so it wasn't spotted.
7221 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7223 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7224 Masking (CBCM). In the absence of test vectors, the best I have been able
7225 to do is check that the decrypt undoes the encrypt, so far. Send me test
7226 vectors if you have them.
7229 *) Correct calculation of key length for export ciphers (too much space was
7230 allocated for null ciphers). This has not been tested!
7233 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7234 message is now correct (it understands "crypto" and "ssl" on its
7235 command line). There is also now an "update" option. This will update
7236 the util/ssleay.num and util/libeay.num files with any new functions.
7238 perl util/mkdef.pl crypto ssl update
7239 it will update them.
7242 *) Overhauled the Perl interface (perl/*):
7243 - ported BN stuff to OpenSSL's different BN library
7244 - made the perl/ source tree CVS-aware
7245 - renamed the package from SSLeay to OpenSSL (the files still contain
7246 their history because I've copied them in the repository)
7247 - removed obsolete files (the test scripts will be replaced
7248 by better Test::Harness variants in the future)
7249 [Ralf S. Engelschall]
7251 *) First cut for a very conservative source tree cleanup:
7252 1. merge various obsolete readme texts into doc/ssleay.txt
7253 where we collect the old documents and readme texts.
7254 2. remove the first part of files where I'm already sure that we no
7255 longer need them because of three reasons: either they are just temporary
7256 files which were left by Eric or they are preserved original files where
7257 I've verified that the diff is also available in the CVS via "cvs diff
7258 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7259 the crypto/md/ stuff).
7260 [Ralf S. Engelschall]
7262 *) More extension code. Incomplete support for subject and issuer alt
7263 name, issuer and authority key id. Change the i2v function parameters
7264 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7265 what that's for :-) Fix to ASN1 macro which messed up
7266 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7269 *) Preliminary support for ENUMERATED type. This is largely copied from the
7273 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7274 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7276 *) Make sure `make rehash' target really finds the `openssl' program.
7277 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7279 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7280 like to hear about it if this slows down other processors.
7283 *) Add CygWin32 platform information to Configure script.
7284 [Alan Batie <batie@aahz.jf.intel.com>]
7286 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7287 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7289 *) New program nseq to manipulate netscape certificate sequences
7292 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7296 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7297 but the BN code had some problems that would cause failures when
7298 doing certificate verification and some other functions.
7299 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7301 *) Add ASN1 and PEM code to support netscape certificate sequences.
7304 *) Add ASN1 and PEM code to support netscape certificate sequences.
7307 *) Add several PKIX and private extended key usage OIDs.
7310 *) Modify the 'ca' program to handle the new extension code. Modify
7311 openssl.cnf for new extension format, add comments.
7314 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7315 and add a sample to openssl.cnf so req -x509 now adds appropriate
7319 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7320 error code, add initial support to X509_print() and x509 application.
7323 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7324 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7325 stuff is currently isolated and isn't even compiled yet.
7328 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7329 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7330 Removed the versions check from X509 routines when loading extensions:
7331 this allows certain broken certificates that don't set the version
7332 properly to be processed.
7335 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7336 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7337 can still be regenerated with "make depend".
7340 *) Spelling mistake in C version of CAST-128.
7341 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7343 *) Changes to the error generation code. The perl script err-code.pl
7344 now reads in the old error codes and retains the old numbers, only
7345 adding new ones if necessary. It also only changes the .err files if new
7346 codes are added. The makefiles have been modified to only insert errors
7347 when needed (to avoid needlessly modifying header files). This is done
7348 by only inserting errors if the .err file is newer than the auto generated
7349 C file. To rebuild all the error codes from scratch (the old behaviour)
7350 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7351 or delete all the .err files.
7354 *) CAST-128 was incorrectly implemented for short keys. The C version has
7355 been fixed, but is untested. The assembler versions are also fixed, but
7356 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7357 to regenerate it if needed.
7358 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7359 Hagino <itojun@kame.net>]
7361 *) File was opened incorrectly in randfile.c.
7362 [Ulf Möller <ulf@fitug.de>]
7364 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7365 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7366 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7367 al: it's just almost always a UTCTime. Note this patch adds new error
7368 codes so do a "make errors" if there are problems.
7371 *) Correct Linux 1 recognition in config.
7372 [Ulf Möller <ulf@fitug.de>]
7374 *) Remove pointless MD5 hash when using DSA keys in ca.
7375 [Anonymous <nobody@replay.com>]
7377 *) Generate an error if given an empty string as a cert directory. Also
7378 generate an error if handed NULL (previously returned 0 to indicate an
7379 error, but didn't set one).
7380 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7382 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7385 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7386 parameters. This was causing a warning which killed off the Win32 compile.
7389 *) Remove C++ style comments from crypto/bn/bn_local.h.
7390 [Neil Costigan <neil.costigan@celocom.com>]
7392 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7393 based on a text string, looking up short and long names and finally
7394 "dot" format. The "dot" format stuff didn't work. Added new function
7395 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7396 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7397 OID is not part of the table.
7400 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7401 X509_LOOKUP_by_alias().
7404 *) Sort openssl functions by name.
7407 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7408 encryption from sample DSA keys (in case anyone is interested the password
7412 *) Make _all_ *_free functions accept a NULL pointer.
7413 [Frans Heymans <fheymans@isaserver.be>]
7415 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7417 [Anonymous <nobody@replay.com>]
7419 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7420 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7422 *) Don't blow it for numeric -newkey arguments to apps/req.
7423 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7425 *) Temp key "for export" tests were wrong in s3_srvr.c.
7426 [Anonymous <nobody@replay.com>]
7428 *) Add prototype for temp key callback functions
7429 SSL_CTX_set_tmp_{rsa,dh}_callback().
7432 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7433 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7436 *) X509_name_add_entry() freed the wrong thing after an error.
7437 [Arne Ansper <arne@ats.cyber.ee>]
7439 *) rsa_eay.c would attempt to free a NULL context.
7440 [Arne Ansper <arne@ats.cyber.ee>]
7442 *) BIO_s_socket() had a broken should_retry() on Windoze.
7443 [Arne Ansper <arne@ats.cyber.ee>]
7445 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7446 [Arne Ansper <arne@ats.cyber.ee>]
7448 *) Make sure the already existing X509_STORE->depth variable is initialized
7449 in X509_STORE_new(), but document the fact that this variable is still
7450 unused in the certificate verification process.
7451 [Ralf S. Engelschall]
7453 *) Fix the various library and apps files to free up pkeys obtained from
7454 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7457 *) Fix reference counting in X509_PUBKEY_get(). This makes
7458 demos/maurice/example2.c work, amongst others, probably.
7459 [Steve Henson and Ben Laurie]
7461 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7462 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7463 are no longer created. This way we have a single and consistent command
7464 line interface `openssl <command>', similar to `cvs <command>'.
7465 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7467 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7468 BIT STRING wrapper always have zero unused bits.
7471 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7474 *) Make the top-level INSTALL documentation easier to understand.
7477 *) Makefiles updated to exit if an error occurs in a sub-directory
7478 make (including if user presses ^C) [Paul Sutton]
7480 *) Make Montgomery context stuff explicit in RSA data structure.
7483 *) Fix build order of pem and err to allow for generated pem.h.
7486 *) Fix renumbering bug in X509_NAME_delete_entry().
7489 *) Enhanced the err-ins.pl script so it makes the error library number
7490 global and can add a library name. This is needed for external ASN1 and
7491 other error libraries.
7494 *) Fixed sk_insert which never worked properly.
7497 *) Fix ASN1 macros so they can handle indefinite length construted
7498 EXPLICIT tags. Some non standard certificates use these: they can now
7502 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7503 into a single doc/ssleay.txt bundle. This way the information is still
7504 preserved but no longer messes up this directory. Now it's new room for
7505 the new set of documenation files.
7506 [Ralf S. Engelschall]
7508 *) SETs were incorrectly DER encoded. This was a major pain, because they
7509 shared code with SEQUENCEs, which aren't coded the same. This means that
7510 almost everything to do with SETs or SEQUENCEs has either changed name or
7511 number of arguments.
7512 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7514 *) Fix test data to work with the above.
7517 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7518 was already fixed by Eric for 0.9.1 it seems.
7519 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7521 *) Autodetect FreeBSD3.
7524 *) Fix various bugs in Configure. This affects the following platforms:
7528 unixware-2.0-pentium
7532 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7533 before they are needed.
7536 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7540 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7542 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7543 changed SSLeay to OpenSSL in version strings.
7544 [Ralf S. Engelschall]
7546 *) Some fixups to the top-level documents.
7549 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7550 because the symlink to include/ was missing.
7551 [Ralf S. Engelschall]
7553 *) Incorporated the popular no-RSA/DSA-only patches
7554 which allow to compile a RSA-free SSLeay.
7555 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7557 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7558 when "ssleay" is still not found.
7559 [Ralf S. Engelschall]
7561 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7562 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7564 *) Updated the README file.
7565 [Ralf S. Engelschall]
7567 *) Added various .cvsignore files in the CVS repository subdirs
7568 to make a "cvs update" really silent.
7569 [Ralf S. Engelschall]
7571 *) Recompiled the error-definition header files and added
7572 missing symbols to the Win32 linker tables.
7573 [Ralf S. Engelschall]
7575 *) Cleaned up the top-level documents;
7576 o new files: CHANGES and LICENSE
7577 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7578 o merged COPYRIGHT into LICENSE
7579 o removed obsolete TODO file
7580 o renamed MICROSOFT to INSTALL.W32
7581 [Ralf S. Engelschall]
7583 *) Removed dummy files from the 0.9.1b source tree:
7584 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7585 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7586 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7587 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7588 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7589 [Ralf S. Engelschall]
7591 *) Added various platform portability fixes.
7594 *) The Genesis of the OpenSSL rpject:
7595 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7596 Young and Tim J. Hudson created while they were working for C2Net until
7598 [The OpenSSL Project]
7601 Changes between 0.9.0b and 0.9.1b [not released]
7603 *) Updated a few CA certificates under certs/
7606 *) Changed some BIGNUM api stuff.
7609 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7610 DGUX x86, Linux Alpha, etc.
7613 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7614 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7618 *) Add -strparse option to asn1pars program which parses nested
7620 [Dr Stephen Henson <shenson@bigfoot.com>]
7622 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7625 *) DSA fix for "ca" program.
7628 *) Added "-genkey" option to "dsaparam" program.
7631 *) Added RIPE MD160 (rmd160) message digest.
7634 *) Added -a (all) option to "ssleay version" command.
7637 *) Added PLATFORM define which is the id given to Configure.
7640 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7643 *) Extended the ASN.1 parser routines.
7646 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7649 *) Added a BN_CTX to the BN library.
7652 *) Fixed the weak key values in DES library
7655 *) Changed API in EVP library for cipher aliases.
7658 *) Added support for RC2/64bit cipher.
7661 *) Converted the lhash library to the crypto/mem.c functions.
7664 *) Added more recognized ASN.1 object ids.
7667 *) Added more RSA padding checks for SSL/TLS.
7670 *) Added BIO proxy/filter functionality.
7673 *) Added extra_certs to SSL_CTX which can be used
7674 send extra CA certificates to the client in the CA cert chain sending
7675 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7678 *) Now Fortezza is denied in the authentication phase because
7679 this is key exchange mechanism is not supported by SSLeay at all.
7682 *) Additional PKCS1 checks.
7685 *) Support the string "TLSv1" for all TLS v1 ciphers.
7688 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7689 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7692 *) Fixed a few memory leaks.
7695 *) Fixed various code and comment typos.
7698 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7699 bytes sent in the client random.
7700 [Edward Bishop <ebishop@spyglass.com>]
projects / thirdparty / openssl.git / blob