5 Changes between 0.9.8b and 0.9.8c [xx XXX xxxx]
9 Changes between 0.9.8a and 0.9.8b [04 May 2006]
11 *) When applying a cipher rule check to see if string match is an explicit
12 cipher suite and only match that one cipher suite if it is.
15 *) Link in manifests for VC++ if needed.
16 [Austin Ziegler <halostatue@gmail.com>]
18 *) Update support for ECC-based TLS ciphersuites according to
19 draft-ietf-tls-ecc-12.txt with proposed changes (but without
20 TLS extensions, which are supported starting with the 0.9.9
21 branch, not in the OpenSSL 0.9.8 branch).
24 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
25 opaque EVP_CIPHER_CTX handling.
28 *) Fixes and enhancements to zlib compression code. We now only use
29 "zlib1.dll" and use the default __cdecl calling convention on Win32
30 to conform with the standards mentioned here:
31 http://www.zlib.net/DLL_FAQ.txt
32 Static zlib linking now works on Windows and the new --with-zlib-include
33 --with-zlib-lib options to Configure can be used to supply the location
34 of the headers and library. Gracefully handle case where zlib library
38 *) Several fixes and enhancements to the OID generation code. The old code
39 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
40 handle numbers larger than ULONG_MAX, truncated printing and had a
41 non standard OBJ_obj2txt() behaviour.
44 *) Add support for building of engines under engine/ as shared libraries
45 under VC++ build system.
48 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
49 Hopefully, we will not see any false combination of paths any more.
52 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
54 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
55 (part of SSL_OP_ALL). This option used to disable the
56 countermeasure against man-in-the-middle protocol-version
57 rollback in the SSL 2.0 server implementation, which is a bad
60 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
61 for Information Security, National Institute of Advanced Industrial
62 Science and Technology [AIST], Japan)]
64 *) Add two function to clear and return the verify parameter flags.
67 *) Keep cipherlists sorted in the source instead of sorting them at
68 runtime, thus removing the need for a lock.
71 *) Avoid some small subgroup attacks in Diffie-Hellman.
72 [Nick Mathewson and Ben Laurie]
74 *) Add functions for well-known primes.
77 *) Extended Windows CE support.
78 [Satoshi Nakamura and Andy Polyakov]
80 *) Initialize SSL_METHOD structures at compile time instead of during
81 runtime, thus removing the need for a lock.
84 *) Make PKCS7_decrypt() work even if no certificate is supplied by
85 attempting to decrypt each encrypted key in turn. Add support to
89 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
91 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
94 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
95 key into the same file any more.
98 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
101 *) Add -utf8 command line and config file option to 'ca'.
102 [Stefan <stf@udoma.org]
104 *) Removed the macro des_crypt(), as it seems to conflict with some
105 libraries. Use DES_crypt().
108 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
109 involves renaming the source and generated shared-libs for
110 both. The engines will accept the corrected or legacy ids
111 ('ncipher' and '4758_cca' respectively) when binding. NB,
112 this only applies when building 'shared'.
113 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
115 *) Add attribute functions to EVP_PKEY structure. Modify
116 PKCS12_create() to recognize a CSP name attribute and
117 use it. Make -CSP option work again in pkcs12 utility.
120 *) Add new functionality to the bn blinding code:
121 - automatic re-creation of the BN_BLINDING parameters after
122 a fixed number of uses (currently 32)
123 - add new function for parameter creation
124 - introduce flags to control the update behaviour of the
125 BN_BLINDING parameters
126 - hide BN_BLINDING structure
127 Add a second BN_BLINDING slot to the RSA structure to improve
128 performance when a single RSA object is shared among several
132 *) Add support for DTLS.
133 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
135 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
136 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
139 *) Remove buggy and incompletet DH cert support from
140 ssl/ssl_rsa.c and ssl/s3_both.c
143 *) Use SHA-1 instead of MD5 as the default digest algorithm for
144 the apps/openssl applications.
147 *) Compile clean with "-Wall -Wmissing-prototypes
148 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
149 DEBUG_SAFESTACK must also be set.
152 *) Change ./Configure so that certain algorithms can be disabled by default.
153 The new counterpiece to "no-xxx" is "enable-xxx".
155 The patented RC5 and MDC2 algorithms will now be disabled unless
156 "enable-rc5" and "enable-mdc2", respectively, are specified.
158 (IDEA remains enabled despite being patented. This is because IDEA
159 is frequently required for interoperability, and there is no license
160 fee for non-commercial use. As before, "no-idea" can be used to
161 avoid this algorithm.)
165 *) Add processing of proxy certificates (see RFC 3820). This work was
166 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
167 EGEE (Enabling Grids for E-science in Europe).
170 *) RC4 performance overhaul on modern architectures/implementations, such
171 as Intel P4, IA-64 and AMD64.
174 *) New utility extract-section.pl. This can be used specify an alternative
175 section number in a pod file instead of having to treat each file as
176 a separate case in Makefile. This can be done by adding two lines to the
179 =for comment openssl_section:XXX
181 The blank line is mandatory.
185 *) New arguments -certform, -keyform and -pass for s_client and s_server
186 to allow alternative format key and certificate files and passphrase
190 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
191 update associated structures and add various utility functions.
193 Add new policy related verify parameters, include policy checking in
194 standard verify code. Enhance 'smime' application with extra parameters
195 to support policy checking and print out.
198 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
199 Nehemiah processors. These extensions support AES encryption in hardware
200 as well as RNG (though RNG support is currently disabled).
201 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
203 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
206 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
207 [Andy Polyakov and a number of other people]
209 *) Improved PowerPC platform support. Most notably BIGNUM assembler
210 implementation contributed by IBM.
211 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
213 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
214 exponent rather than 'unsigned long'. There is a corresponding change to
215 the new 'rsa_keygen' element of the RSA_METHOD structure.
216 [Jelte Jansen, Geoff Thorpe]
218 *) Functionality for creating the initial serial number file is now
219 moved from CA.pl to the 'ca' utility with a new option -create_serial.
221 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
222 number file to 1, which is bound to cause problems. To avoid
223 the problems while respecting compatibility between different 0.9.7
224 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
225 CA.pl for serial number initialization. With the new release 0.9.8,
226 we can fix the problem directly in the 'ca' utility.)
229 *) Reduced header interdepencies by declaring more opaque objects in
230 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
231 give fewer recursive includes, which could break lazy source code - so
232 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
233 developers should define this symbol when building and using openssl to
234 ensure they track the recommended behaviour, interfaces, [etc], but
235 backwards-compatible behaviour prevails when this isn't defined.
238 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
241 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
242 This will generate a random key of the appropriate length based on the
243 cipher context. The EVP_CIPHER can provide its own random key generation
244 routine to support keys of a specific form. This is used in the des and
245 3des routines to generate a key of the correct parity. Update S/MIME
246 code to use new functions and hence generate correct parity DES keys.
247 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
248 valid (weak or incorrect parity).
251 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
252 as looking them up. This is useful when the verified structure may contain
253 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
254 present unless the new PKCS7_NO_CRL flag is asserted.
257 *) Extend ASN1 oid configuration module. It now additionally accepts the
260 shortName = some long name, 1.2.3.4
263 *) Reimplemented the BN_CTX implementation. There is now no more static
264 limitation on the number of variables it can handle nor the depth of the
265 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
266 information can now expand as required, and rather than having a single
267 static array of bignums, BN_CTX now uses a linked-list of such arrays
268 allowing it to expand on demand whilst maintaining the usefulness of
272 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
273 to allow all RSA operations to function using a single BN_CTX.
276 *) Preliminary support for certificate policy evaluation and checking. This
277 is initially intended to pass the tests outlined in "Conformance Testing
278 of Relying Party Client Certificate Path Processing Logic" v1.07.
281 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
282 remained unused and not that useful. A variety of other little bignum
283 tweaks and fixes have also been made continuing on from the audit (see
287 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
288 associated ASN1, EVP and SSL functions and old ASN1 macros.
291 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
292 and this should never fail. So the return value from the use of
293 BN_set_word() (which can fail due to needless expansion) is now deprecated;
294 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
297 *) BN_CTX_get() should return zero-valued bignums, providing the same
298 initialised value as BN_new().
299 [Geoff Thorpe, suggested by Ulf Möller]
301 *) Support for inhibitAnyPolicy certificate extension.
304 *) An audit of the BIGNUM code is underway, for which debugging code is
305 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
306 is considered valid when processing BIGNUMs, and causes execution to
307 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
308 further steps are taken to deliberately pollute unused data in BIGNUM
309 structures to try and expose faulty code further on. For now, openssl will
310 (in its default mode of operation) continue to tolerate the inconsistent
311 forms that it has tolerated in the past, but authors and packagers should
312 consider trying openssl and their own applications when compiled with
313 these debugging symbols defined. It will help highlight potential bugs in
314 their own code, and will improve the test coverage for OpenSSL itself. At
315 some point, these tighter rules will become openssl's default to improve
316 maintainability, though the assert()s and other overheads will remain only
317 in debugging configurations. See bn.h for more details.
318 [Geoff Thorpe, Nils Larsch, Ulf Möller]
320 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
321 that can only be obtained through BN_CTX_new() (which implicitly
322 initialises it). The presence of this function only made it possible
323 to overwrite an existing structure (and cause memory leaks).
326 *) Because of the callback-based approach for implementing LHASH as a
327 template type, lh_insert() adds opaque objects to hash-tables and
328 lh_doall() or lh_doall_arg() are typically used with a destructor callback
329 to clean up those corresponding objects before destroying the hash table
330 (and losing the object pointers). So some over-zealous constifications in
331 LHASH have been relaxed so that lh_insert() does not take (nor store) the
332 objects as "const" and the lh_doall[_arg] callback wrappers are not
333 prototyped to have "const" restrictions on the object pointers they are
334 given (and so aren't required to cast them away any more).
337 *) The tmdiff.h API was so ugly and minimal that our own timing utility
338 (speed) prefers to use its own implementation. The two implementations
339 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
340 its object type properly exposed (MS_TM) instead of casting to/from "char
341 *". This may still change yet if someone realises MS_TM and "ms_time_***"
342 aren't necessarily the greatest nomenclatures - but this is what was used
343 internally to the implementation so I've used that for now.
346 *) Ensure that deprecated functions do not get compiled when
347 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
348 the self-tests were still using deprecated key-generation functions so
349 these have been updated also.
352 *) Reorganise PKCS#7 code to separate the digest location functionality
353 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
354 New function PKCS7_set_digest() to set the digest type for PKCS#7
355 digestedData type. Add additional code to correctly generate the
356 digestedData type and add support for this type in PKCS7 initialization
360 *) New function PKCS7_set0_type_other() this initializes a PKCS7
361 structure of type "other".
364 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
365 sure the loop does correctly stop and breaking ("division by zero")
366 modulus operations are not performed. The (pre-generated) prime
367 table crypto/bn/bn_prime.h was already correct, but it could not be
368 re-generated on some platforms because of the "division by zero"
369 situation in the script.
370 [Ralf S. Engelschall]
372 *) Update support for ECC-based TLS ciphersuites according to
373 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
374 SHA-1 now is only used for "small" curves (where the
375 representation of a field element takes up to 24 bytes); for
376 larger curves, the field element resulting from ECDH is directly
377 used as premaster secret.
378 [Douglas Stebila (Sun Microsystems Laboratories)]
380 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
381 curve secp160r1 to the tests.
382 [Douglas Stebila (Sun Microsystems Laboratories)]
384 *) Add the possibility to load symbols globally with DSO.
385 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
387 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
388 control of the error stack.
391 *) Add support for STORE in ENGINE.
394 *) Add the STORE type. The intention is to provide a common interface
395 to certificate and key stores, be they simple file-based stores, or
396 HSM-type store, or LDAP stores, or...
397 NOTE: The code is currently UNTESTED and isn't really used anywhere.
400 *) Add a generic structure called OPENSSL_ITEM. This can be used to
401 pass a list of arguments to any function as well as provide a way
402 for a function to pass data back to the caller.
405 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
406 works like BUF_strdup() but can be used to duplicate a portion of
407 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
411 *) Add the function sk_find_ex() which works like sk_find(), but will
412 return an index to an element even if an exact match couldn't be
413 found. The index is guaranteed to point at the element where the
414 searched-for key would be inserted to preserve sorting order.
417 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
418 takes an extra flags argument for optional functionality. Currently,
419 the following flags are defined:
421 OBJ_BSEARCH_VALUE_ON_NOMATCH
422 This one gets OBJ_bsearch_ex() to return a pointer to the first
423 element where the comparing function returns a negative or zero
426 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
427 This one gets OBJ_bsearch_ex() to return a pointer to the first
428 element where the comparing function returns zero. This is useful
429 if there are more than one element where the comparing function
433 *) Make it possible to create self-signed certificates with 'openssl ca'
434 in such a way that the self-signed certificate becomes part of the
435 CA database and uses the same mechanisms for serial number generation
436 as all other certificate signing. The new flag '-selfsign' enables
437 this functionality. Adapt CA.sh and CA.pl.in.
440 *) Add functionality to check the public key of a certificate request
441 against a given private. This is useful to check that a certificate
442 request can be signed by that key (self-signing).
445 *) Make it possible to have multiple active certificates with the same
446 subject in the CA index file. This is done only if the keyword
447 'unique_subject' is set to 'no' in the main CA section (default
448 if 'CA_default') of the configuration file. The value is saved
449 with the database itself in a separate index attribute file,
450 named like the index file with '.attr' appended to the name.
453 *) Generate muti valued AVAs using '+' notation in config files for
457 *) Support for nameConstraints certificate extension.
460 *) Support for policyConstraints certificate extension.
463 *) Support for policyMappings certificate extension.
466 *) Make sure the default DSA_METHOD implementation only uses its
467 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
468 and change its own handlers to be NULL so as to remove unnecessary
469 indirection. This lets alternative implementations fallback to the
470 default implementation more easily.
473 *) Support for directoryName in GeneralName related extensions
477 *) Make it possible to link applications using Makefile.shared.
478 Make that possible even when linking against static libraries!
481 *) Support for single pass processing for S/MIME signing. This now
482 means that S/MIME signing can be done from a pipe, in addition
483 cleartext signing (multipart/signed type) is effectively streaming
484 and the signed data does not need to be all held in memory.
486 This is done with a new flag PKCS7_STREAM. When this flag is set
487 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
488 is done after the data is output (and digests calculated) in
492 *) Add full support for -rpath/-R, both in shared libraries and
493 applications, at least on the platforms where it's known how
497 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
498 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
499 will now compute a table of multiples of the generator that
500 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
501 faster (notably in the case of a single point multiplication,
503 [Nils Larsch, Bodo Moeller]
505 *) IPv6 support for certificate extensions. The various extensions
506 which use the IP:a.b.c.d can now take IPv6 addresses using the
507 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
511 *) Added an ENGINE that implements RSA by performing private key
512 exponentiations with the GMP library. The conversions to and from
513 GMP's mpz_t format aren't optimised nor are any montgomery forms
514 cached, and on x86 it appears OpenSSL's own performance has caught up.
515 However there are likely to be other architectures where GMP could
516 provide a boost. This ENGINE is not built in by default, but it can be
517 specified at Configure time and should be accompanied by the necessary
518 linker additions, eg;
519 ./config -DOPENSSL_USE_GMP -lgmp
522 *) "openssl engine" will not display ENGINE/DSO load failure errors when
523 testing availability of engines with "-t" - the old behaviour is
524 produced by increasing the feature's verbosity with "-tt".
527 *) ECDSA routines: under certain error conditions uninitialized BN objects
528 could be freed. Solution: make sure initialization is performed early
529 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
533 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
534 and DH_METHOD (eg. by ENGINE implementations) to override the normal
535 software implementations. For DSA and DH, parameter generation can
536 also be overriden by providing the appropriate method callbacks.
539 *) Change the "progress" mechanism used in key-generation and
540 primality testing to functions that take a new BN_GENCB pointer in
541 place of callback/argument pairs. The new API functions have "_ex"
542 postfixes and the older functions are reimplemented as wrappers for
543 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
544 declarations of the old functions to help (graceful) attempts to
545 migrate to the new functions. Also, the new key-generation API
546 functions operate on a caller-supplied key-structure and return
547 success/failure rather than returning a key or NULL - this is to
548 help make "keygen" another member function of RSA_METHOD etc.
550 Example for using the new callback interface:
552 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
556 BN_GENCB_set(&my_cb, my_callback, my_arg);
558 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
559 /* For the meaning of a, b in calls to my_callback(), see the
560 * documentation of the function that calls the callback.
561 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
562 * my_callback should return 1 if it wants BN_is_prime_ex()
563 * to continue, or 0 to stop.
568 *) Change the ZLIB compression method to be stateful, and make it
569 available to TLS with the number defined in
570 draft-ietf-tls-compression-04.txt.
573 *) Add the ASN.1 structures and functions for CertificatePair, which
574 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
576 CertificatePair ::= SEQUENCE {
577 forward [0] Certificate OPTIONAL,
578 reverse [1] Certificate OPTIONAL,
579 -- at least one of the pair shall be present -- }
581 Also implement the PEM functions to read and write certificate
582 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
584 This needed to be defined, mostly for the sake of the LDAP
585 attribute crossCertificatePair, but may prove useful elsewhere as
589 *) Make it possible to inhibit symlinking of shared libraries in
590 Makefile.shared, for Cygwin's sake.
593 *) Extend the BIGNUM API by creating a function
594 void BN_set_negative(BIGNUM *a, int neg);
595 and a macro that behave like
596 int BN_is_negative(const BIGNUM *a);
598 to avoid the need to access 'a->neg' directly in applications.
601 *) Implement fast modular reduction for pseudo-Mersenne primes
602 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
603 EC_GROUP_new_curve_GFp() will now automatically use this
605 [Nils Larsch <nla@trustcenter.de>]
607 *) Add new lock type (CRYPTO_LOCK_BN).
610 *) Change the ENGINE framework to automatically load engines
611 dynamically from specific directories unless they could be
612 found to already be built in or loaded. Move all the
613 current engines except for the cryptodev one to a new
615 The engines in engines/ are built as shared libraries if
616 the "shared" options was given to ./Configure or ./config.
617 Otherwise, they are inserted in libcrypto.a.
618 /usr/local/ssl/engines is the default directory for dynamic
619 engines, but that can be overriden at configure time through
620 the usual use of --prefix and/or --openssldir, and at run
621 time with the environment variable OPENSSL_ENGINES.
622 [Geoff Thorpe and Richard Levitte]
624 *) Add Makefile.shared, a helper makefile to build shared
625 libraries. Addapt Makefile.org.
628 *) Add version info to Win32 DLLs.
629 [Peter 'Luna' Runestig" <peter@runestig.com>]
631 *) Add new 'medium level' PKCS#12 API. Certificates and keys
632 can be added using this API to created arbitrary PKCS#12
633 files while avoiding the low level API.
635 New options to PKCS12_create(), key or cert can be NULL and
636 will then be omitted from the output file. The encryption
637 algorithm NIDs can be set to -1 for no encryption, the mac
638 iteration count can be set to 0 to omit the mac.
640 Enhance pkcs12 utility by making the -nokeys and -nocerts
641 options work when creating a PKCS#12 file. New option -nomac
642 to omit the mac, NONE can be set for an encryption algorithm.
643 New code is modified to use the enhanced PKCS12_create()
644 instead of the low level API.
647 *) Extend ASN1 encoder to support indefinite length constructed
648 encoding. This can output sequences tags and octet strings in
649 this form. Modify pk7_asn1.c to support indefinite length
650 encoding. This is experimental and needs additional code to
651 be useful, such as an ASN1 bio and some enhanced streaming
654 Extend template encode functionality so that tagging is passed
655 down to the template encoder.
658 *) Let 'openssl req' fail if an argument to '-newkey' is not
659 recognized instead of using RSA as a default.
662 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
663 As these are not official, they are not included in "ALL";
664 the "ECCdraft" ciphersuite group alias can be used to select them.
665 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
667 *) Add ECDH engine support.
668 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
670 *) Add ECDH in new directory crypto/ecdh/.
671 [Douglas Stebila (Sun Microsystems Laboratories)]
673 *) Let BN_rand_range() abort with an error after 100 iterations
674 without success (which indicates a broken PRNG).
677 *) Change BN_mod_sqrt() so that it verifies that the input value
678 is really the square of the return value. (Previously,
679 BN_mod_sqrt would show GIGO behaviour.)
682 *) Add named elliptic curves over binary fields from X9.62, SECG,
683 and WAP/WTLS; add OIDs that were still missing.
685 [Sheueling Chang Shantz and Douglas Stebila
686 (Sun Microsystems Laboratories)]
688 *) Extend the EC library for elliptic curves over binary fields
689 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
692 EC_GF2m_simple_method
696 EC_GROUP_new_curve_GF2m
697 EC_GROUP_set_curve_GF2m
698 EC_GROUP_get_curve_GF2m
699 EC_POINT_set_affine_coordinates_GF2m
700 EC_POINT_get_affine_coordinates_GF2m
701 EC_POINT_set_compressed_coordinates_GF2m
703 Point compression for binary fields is disabled by default for
704 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
707 As binary polynomials are represented as BIGNUMs, various members
708 of the EC_GROUP and EC_POINT data structures can be shared
709 between the implementations for prime fields and binary fields;
710 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
711 are essentially identical to their ..._GFp counterparts.
712 (For simplicity, the '..._GFp' prefix has been dropped from
713 various internal method names.)
715 An internal 'field_div' method (similar to 'field_mul' and
716 'field_sqr') has been added; this is used only for binary fields.
718 [Sheueling Chang Shantz and Douglas Stebila
719 (Sun Microsystems Laboratories)]
721 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
722 through methods ('mul', 'precompute_mult').
724 The generic implementations (now internally called 'ec_wNAF_mul'
725 and 'ec_wNAF_precomputed_mult') remain the default if these
726 methods are undefined.
728 [Sheueling Chang Shantz and Douglas Stebila
729 (Sun Microsystems Laboratories)]
731 *) New function EC_GROUP_get_degree, which is defined through
732 EC_METHOD. For curves over prime fields, this returns the bit
733 length of the modulus.
735 [Sheueling Chang Shantz and Douglas Stebila
736 (Sun Microsystems Laboratories)]
738 *) New functions EC_GROUP_dup, EC_POINT_dup.
739 (These simply call ..._new and ..._copy).
741 [Sheueling Chang Shantz and Douglas Stebila
742 (Sun Microsystems Laboratories)]
744 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
745 Polynomials are represented as BIGNUMs (where the sign bit is not
746 used) in the following functions [macros]:
749 BN_GF2m_sub [= BN_GF2m_add]
750 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
751 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
752 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
754 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
755 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
756 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
757 BN_GF2m_cmp [= BN_ucmp]
759 (Note that only the 'mod' functions are actually for fields GF(2^m).
760 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
762 For some functions, an the irreducible polynomial defining a
763 field can be given as an 'unsigned int[]' with strictly
764 decreasing elements giving the indices of those bits that are set;
765 i.e., p[] represents the polynomial
766 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
768 p[0] > p[1] > ... > p[k] = 0.
769 This applies to the following functions:
774 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
775 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
778 BN_GF2m_mod_solve_quad_arr
782 Conversion can be performed by the following functions:
787 bntest.c has additional tests for binary polynomial arithmetic.
789 Two implementations for BN_GF2m_mod_div() are available.
790 The default algorithm simply uses BN_GF2m_mod_inv() and
791 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
792 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
793 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
795 [Sheueling Chang Shantz and Douglas Stebila
796 (Sun Microsystems Laboratories)]
798 *) Add new error code 'ERR_R_DISABLED' that can be used when some
799 functionality is disabled at compile-time.
800 [Douglas Stebila <douglas.stebila@sun.com>]
802 *) Change default behaviour of 'openssl asn1parse' so that more
803 information is visible when viewing, e.g., a certificate:
805 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
806 mode the content of non-printable OCTET STRINGs is output in a
807 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
808 avoid the appearance of a printable string.
809 [Nils Larsch <nla@trustcenter.de>]
811 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
813 EC_GROUP_set_asn1_flag()
814 EC_GROUP_get_asn1_flag()
815 EC_GROUP_set_point_conversion_form()
816 EC_GROUP_get_point_conversion_form()
817 These control ASN1 encoding details:
818 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
819 has been set to OPENSSL_EC_NAMED_CURVE.
820 - Points are encoded in uncompressed form by default; options for
821 asn1_for are as for point2oct, namely
822 POINT_CONVERSION_COMPRESSED
823 POINT_CONVERSION_UNCOMPRESSED
824 POINT_CONVERSION_HYBRID
826 Also add 'seed' and 'seed_len' members to EC_GROUP with access
830 EC_GROUP_get_seed_len()
831 This is used only for ASN1 purposes (so far).
832 [Nils Larsch <nla@trustcenter.de>]
834 *) Add 'field_type' member to EC_METHOD, which holds the NID
835 of the appropriate field type OID. The new function
836 EC_METHOD_get_field_type() returns this value.
837 [Nils Larsch <nla@trustcenter.de>]
844 providing useful interfaces to EC_POINT_point2oct() and
845 EC_POINT_oct2point().
846 [Nils Larsch <nla@trustcenter.de>]
848 *) Change internals of the EC library so that the functions
849 EC_GROUP_set_generator()
850 EC_GROUP_get_generator()
852 EC_GROUP_get_cofactor()
853 are implemented directly in crypto/ec/ec_lib.c and not dispatched
854 to methods, which would lead to unnecessary code duplication when
855 adding different types of curves.
856 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
858 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
859 arithmetic, and such that modified wNAFs are generated
860 (which avoid length expansion in many cases).
863 *) Add a function EC_GROUP_check_discriminant() (defined via
864 EC_METHOD) that verifies that the curve discriminant is non-zero.
866 Add a function EC_GROUP_check() that makes some sanity tests
867 on a EC_GROUP, its generator and order. This includes
868 EC_GROUP_check_discriminant().
869 [Nils Larsch <nla@trustcenter.de>]
871 *) Add ECDSA in new directory crypto/ecdsa/.
873 Add applications 'openssl ecparam' and 'openssl ecdsa'
874 (these are based on 'openssl dsaparam' and 'openssl dsa').
876 ECDSA support is also included in various other files across the
877 library. Most notably,
878 - 'openssl req' now has a '-newkey ecdsa:file' option;
879 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
880 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
881 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
882 them suitable for ECDSA where domain parameters must be
883 extracted before the specific public key;
884 - ECDSA engine support has been added.
885 [Nils Larsch <nla@trustcenter.de>]
887 *) Include some named elliptic curves, and add OIDs from X9.62,
888 SECG, and WAP/WTLS. Each curve can be obtained from the new
890 EC_GROUP_new_by_curve_name(),
891 and the list of available named curves can be obtained with
892 EC_get_builtin_curves().
893 Also add a 'curve_name' member to EC_GROUP objects, which can be
895 EC_GROUP_set_curve_name()
896 EC_GROUP_get_curve_name()
897 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
899 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
900 was actually never needed) and in BN_mul(). The removal in BN_mul()
901 required a small change in bn_mul_part_recursive() and the addition
902 of the functions bn_cmp_part_words(), bn_sub_part_words() and
903 bn_add_part_words(), which do the same thing as bn_cmp_words(),
904 bn_sub_words() and bn_add_words() except they take arrays with
908 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
910 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
911 The value now differs depending on if you build for FIPS or not.
912 BEWARE! A program linked with a shared FIPSed libcrypto can't be
913 safely run with a non-FIPSed libcrypto, as it may crash because of
914 the difference induced by this change.
917 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
919 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
920 (part of SSL_OP_ALL). This option used to disable the
921 countermeasure against man-in-the-middle protocol-version
922 rollback in the SSL 2.0 server implementation, which is a bad
923 idea. (CVE-2005-2969)
925 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
926 for Information Security, National Institute of Advanced Industrial
927 Science and Technology [AIST], Japan)]
929 *) Minimal support for X9.31 signatures and PSS padding modes. This is
930 mainly for FIPS compliance and not fully integrated at this stage.
933 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
934 the exponentiation using a fixed-length exponent. (Otherwise,
935 the information leaked through timing could expose the secret key
936 after many signatures; cf. Bleichenbacher's attack on DSA with
940 *) Make a new fixed-window mod_exp implementation the default for
941 RSA, DSA, and DH private-key operations so that the sequence of
942 squares and multiplies and the memory access pattern are
943 independent of the particular secret key. This will mitigate
944 cache-timing and potential related attacks.
946 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
947 and this is automatically used by BN_mod_exp_mont() if the new flag
948 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
949 will use this BN flag for private exponents unless the flag
950 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
951 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
953 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
955 *) Change the client implementation for SSLv23_method() and
956 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
957 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
958 (Previously, the SSL 2.0 backwards compatible Client Hello
959 message format would be used even with SSL_OP_NO_SSLv2.)
962 *) Add support for smime-type MIME parameter in S/MIME messages which some
966 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
967 a threadsafe manner. Modify rsa code to use new function and add calls
968 to dsa and dh code (which had race conditions before).
971 *) Include the fixed error library code in the C error file definitions
972 instead of fixing them up at runtime. This keeps the error code
976 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
978 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
981 *) Fixes for newer kerberos headers. NB: the casts are needed because
982 the 'length' field is signed on one version and unsigned on another
983 with no (?) obvious way to tell the difference, without these VC++
984 complains. Also the "definition" of FAR (blank) is no longer included
985 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
986 some needed definitions.
989 *) Undo Cygwin change.
992 *) Added support for proxy certificates according to RFC 3820.
993 Because they may be a security thread to unaware applications,
994 they must be explicitely allowed in run-time. See
995 docs/HOWTO/proxy_certificates.txt for further information.
998 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1000 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1001 server and client random values. Previously
1002 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1003 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1005 This change has negligible security impact because:
1007 1. Server and client random values still have 24 bytes of pseudo random
1010 2. Server and client random values are sent in the clear in the initial
1013 3. The master secret is derived using the premaster secret (48 bytes in
1014 size for static RSA ciphersuites) as well as client server and random
1017 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1020 [Stephen Henson, reported by UK NISCC]
1022 *) Use Windows randomness collection on Cygwin.
1025 *) Fix hang in EGD/PRNGD query when communication socket is closed
1026 prematurely by EGD/PRNGD.
1027 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1029 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1032 *) Back-port of selected performance improvements from development
1033 branch, as well as improved support for PowerPC platforms.
1036 *) Add lots of checks for memory allocation failure, error codes to indicate
1037 failure and freeing up memory if a failure occurs.
1038 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1040 *) Add new -passin argument to dgst.
1043 *) Perform some character comparisons of different types in X509_NAME_cmp:
1044 this is needed for some certificates that reencode DNs into UTF8Strings
1045 (in violation of RFC3280) and can't or wont issue name rollover
1049 *) Make an explicit check during certificate validation to see that
1050 the CA setting in each certificate on the chain is correct. As a
1051 side effect always do the following basic checks on extensions,
1052 not just when there's an associated purpose to the check:
1054 - if there is an unhandled critical extension (unless the user
1055 has chosen to ignore this fault)
1056 - if the path length has been exceeded (if one is set at all)
1057 - that certain extensions fit the associated purpose (if one has
1061 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1063 *) Avoid a race condition when CRLs are checked in a multi threaded
1064 environment. This would happen due to the reordering of the revoked
1065 entries during signature checking and serial number lookup. Now the
1066 encoding is cached and the serial number sort performed under a lock.
1067 Add new STACK function sk_is_sorted().
1070 *) Add Delta CRL to the extension code.
1073 *) Various fixes to s3_pkt.c so alerts are sent properly.
1074 [David Holmes <d.holmes@f5.com>]
1076 *) Reduce the chances of duplicate issuer name and serial numbers (in
1077 violation of RFC3280) using the OpenSSL certificate creation utilities.
1078 This is done by creating a random 64 bit value for the initial serial
1079 number when a serial number file is created or when a self signed
1080 certificate is created using 'openssl req -x509'. The initial serial
1081 number file is created using 'openssl x509 -next_serial' in CA.pl
1082 rather than being initialized to 1.
1085 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1087 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1088 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1089 [Joe Orton, Steve Henson]
1091 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1093 [Joe Orton, Steve Henson]
1095 *) Make it possible to have multiple active certificates with the same
1096 subject in the CA index file. This is done only if the keyword
1097 'unique_subject' is set to 'no' in the main CA section (default
1098 if 'CA_default') of the configuration file. The value is saved
1099 with the database itself in a separate index attribute file,
1100 named like the index file with '.attr' appended to the name.
1103 *) X509 verify fixes. Disable broken certificate workarounds when
1104 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1105 keyUsage extension present. Don't accept CRLs with unhandled critical
1106 extensions: since verify currently doesn't process CRL extensions this
1107 rejects a CRL with *any* critical extensions. Add new verify error codes
1111 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1112 A clarification of RFC2560 will require the use of OCTET STRINGs and
1113 some implementations cannot handle the current raw format. Since OpenSSL
1114 copies and compares OCSP nonces as opaque blobs without any attempt at
1115 parsing them this should not create any compatibility issues.
1118 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1119 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1120 this HMAC (and other) operations are several times slower than OpenSSL
1124 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1125 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1127 *) Use the correct content when signing type "other".
1130 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1132 *) Fix various bugs revealed by running the NISCC test suite:
1134 Stop out of bounds reads in the ASN1 code when presented with
1135 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1137 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1139 If verify callback ignores invalid public key errors don't try to check
1140 certificate signature with the NULL public key.
1144 *) New -ignore_err option in ocsp application to stop the server
1145 exiting on the first error in a request.
1148 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1149 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1153 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1154 extra data after the compression methods not only for TLS 1.0
1155 but also for SSL 3.0 (as required by the specification).
1156 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1158 *) Change X509_certificate_type() to mark the key as exported/exportable
1159 when it's 512 *bits* long, not 512 bytes.
1162 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1163 blocks during encryption.
1166 *) Various fixes to base64 BIO and non blocking I/O. On write
1167 flushes were not handled properly if the BIO retried. On read
1168 data was not being buffered properly and had various logic bugs.
1169 This also affects blocking I/O when the data being decoded is a
1173 *) Various S/MIME bugfixes and compatibility changes:
1174 output correct application/pkcs7 MIME type if
1175 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1176 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1177 of files as .eml work). Correctly handle very long lines in MIME
1181 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1183 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1184 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1185 a protocol version number mismatch like a decryption error
1186 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1189 *) Turn on RSA blinding by default in the default implementation
1190 to avoid a timing attack. Applications that don't want it can call
1191 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1192 They would be ill-advised to do so in most cases.
1193 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1195 *) Change RSA blinding code so that it works when the PRNG is not
1196 seeded (in this case, the secret RSA exponent is abused as
1197 an unpredictable seed -- if it is not unpredictable, there
1198 is no point in blinding anyway). Make RSA blinding thread-safe
1199 by remembering the creator's thread ID in rsa->blinding and
1200 having all other threads use local one-time blinding factors
1201 (this requires more computation than sharing rsa->blinding, but
1202 avoids excessive locking; and if an RSA object is not shared
1203 between threads, blinding will still be very fast).
1206 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1207 ENGINE as defaults for all supported algorithms irrespective of
1208 the 'flags' parameter. 'flags' is now honoured, so applications
1209 should make sure they are passing it correctly.
1212 *) Target "mingw" now allows native Windows code to be generated in
1213 the Cygwin environment as well as with the MinGW compiler.
1216 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1218 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1219 via timing by performing a MAC computation even if incorrrect
1220 block cipher padding has been found. This is a countermeasure
1221 against active attacks where the attacker has to distinguish
1222 between bad padding and a MAC verification error. (CVE-2003-0078)
1224 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1225 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1226 Martin Vuagnoux (EPFL, Ilion)]
1228 *) Make the no-err option work as intended. The intention with no-err
1229 is not to have the whole error stack handling routines removed from
1230 libcrypto, it's only intended to remove all the function name and
1231 reason texts, thereby removing some of the footprint that may not
1232 be interesting if those errors aren't displayed anyway.
1234 NOTE: it's still possible for any application or module to have it's
1235 own set of error texts inserted. The routines are there, just not
1236 used by default when no-err is given.
1239 *) Add support for FreeBSD on IA64.
1240 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1242 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1243 Kerberos function mit_des_cbc_cksum(). Before this change,
1244 the value returned by DES_cbc_cksum() was like the one from
1245 mit_des_cbc_cksum(), except the bytes were swapped.
1246 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1248 *) Allow an application to disable the automatic SSL chain building.
1249 Before this a rather primitive chain build was always performed in
1250 ssl3_output_cert_chain(): an application had no way to send the
1251 correct chain if the automatic operation produced an incorrect result.
1253 Now the chain builder is disabled if either:
1255 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1257 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1259 The reasoning behind this is that an application would not want the
1260 auto chain building to take place if extra chain certificates are
1261 present and it might also want a means of sending no additional
1262 certificates (for example the chain has two certificates and the
1266 *) Add the possibility to build without the ENGINE framework.
1267 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1269 *) Under Win32 gmtime() can return NULL: check return value in
1270 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1273 *) DSA routines: under certain error conditions uninitialized BN objects
1274 could be freed. Solution: make sure initialization is performed early
1275 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1276 Nils Larsch <nla@trustcenter.de> via PR#459)
1279 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1280 checked on reconnect on the client side, therefore session resumption
1281 could still fail with a "ssl session id is different" error. This
1282 behaviour is masked when SSL_OP_ALL is used due to
1283 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1284 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1285 followup to PR #377.
1288 *) IA-32 assembler support enhancements: unified ELF targets, support
1289 for SCO/Caldera platforms, fix for Cygwin shared build.
1292 *) Add support for FreeBSD on sparc64. As a consequence, support for
1293 FreeBSD on non-x86 processors is separate from x86 processors on
1294 the config script, much like the NetBSD support.
1295 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1297 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1299 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1302 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1303 code (06) was taken as the first octet of the session ID and the last
1304 octet was ignored consequently. As a result SSLv2 client side session
1305 caching could not have worked due to the session ID mismatch between
1307 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1311 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1312 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1316 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1317 seems that in spite of existing for more than a year, many application
1318 author have done nothing to provide the necessary callbacks, which
1319 means that this particular engine will not work properly anywhere.
1320 This is a very unfortunate situation which forces us, in the name
1321 of usability, to give the hw_ncipher.c a static lock, which is part
1323 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1324 appear in 0.9.8 or later. We EXPECT application authors to have
1325 dealt properly with this when 0.9.8 is released (unless we actually
1326 make such changes in the libcrypto locking code that changes will
1327 have to be made anyway).
1330 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1331 octets have been read, EOF or an error occurs. Without this change
1332 some truncated ASN1 structures will not produce an error.
1335 *) Disable Heimdal support, since it hasn't been fully implemented.
1336 Still give the possibility to force the use of Heimdal, but with
1337 warnings and a request that patches get sent to openssl-dev.
1340 *) Add the VC-CE target, introduce the WINCE sysname, and add
1341 INSTALL.WCE and appropriate conditionals to make it build.
1342 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1344 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1345 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1346 edit numbers of the version.
1347 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1349 *) Introduce safe string copy and catenation functions
1350 (BUF_strlcpy() and BUF_strlcat()).
1351 [Ben Laurie (CHATS) and Richard Levitte]
1353 *) Avoid using fixed-size buffers for one-line DNs.
1354 [Ben Laurie (CHATS)]
1356 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1357 resizing buffers containing secrets, and use where appropriate.
1358 [Ben Laurie (CHATS)]
1360 *) Avoid using fixed size buffers for configuration file location.
1361 [Ben Laurie (CHATS)]
1363 *) Avoid filename truncation for various CA files.
1364 [Ben Laurie (CHATS)]
1366 *) Use sizeof in preference to magic numbers.
1367 [Ben Laurie (CHATS)]
1369 *) Avoid filename truncation in cert requests.
1370 [Ben Laurie (CHATS)]
1372 *) Add assertions to check for (supposedly impossible) buffer
1374 [Ben Laurie (CHATS)]
1376 *) Don't cache truncated DNS entries in the local cache (this could
1377 potentially lead to a spoofing attack).
1378 [Ben Laurie (CHATS)]
1380 *) Fix various buffers to be large enough for hex/decimal
1381 representations in a platform independent manner.
1382 [Ben Laurie (CHATS)]
1384 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1385 resizing buffers containing secrets, and use where appropriate.
1386 [Ben Laurie (CHATS)]
1388 *) Add BIO_indent() to avoid much slightly worrying code to do
1390 [Ben Laurie (CHATS)]
1392 *) Convert sprintf()/BIO_puts() to BIO_printf().
1393 [Ben Laurie (CHATS)]
1395 *) buffer_gets() could terminate with the buffer only half
1397 [Ben Laurie (CHATS)]
1399 *) Add assertions to prevent user-supplied crypto functions from
1400 overflowing internal buffers by having large block sizes, etc.
1401 [Ben Laurie (CHATS)]
1403 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1405 [Ben Laurie (CHATS)]
1407 *) Eliminate unused copy of key in RC4.
1408 [Ben Laurie (CHATS)]
1410 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1411 [Ben Laurie (CHATS)]
1413 *) Fix off-by-one error in EGD path.
1414 [Ben Laurie (CHATS)]
1416 *) If RANDFILE path is too long, ignore instead of truncating.
1417 [Ben Laurie (CHATS)]
1419 *) Eliminate unused and incorrectly sized X.509 structure
1421 [Ben Laurie (CHATS)]
1423 *) Eliminate unused and dangerous function knumber().
1424 [Ben Laurie (CHATS)]
1426 *) Eliminate unused and dangerous structure, KSSL_ERR.
1427 [Ben Laurie (CHATS)]
1429 *) Protect against overlong session ID context length in an encoded
1430 session object. Since these are local, this does not appear to be
1432 [Ben Laurie (CHATS)]
1434 *) Change from security patch (see 0.9.6e below) that did not affect
1435 the 0.9.6 release series:
1437 Remote buffer overflow in SSL3 protocol - an attacker could
1438 supply an oversized master key in Kerberos-enabled versions.
1440 [Ben Laurie (CHATS)]
1442 *) Change the SSL kerb5 codes to match RFC 2712.
1445 *) Make -nameopt work fully for req and add -reqopt switch.
1446 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1448 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1449 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1451 *) Make sure tests can be performed even if the corresponding algorithms
1452 have been removed entirely. This was also the last step to make
1453 OpenSSL compilable with DJGPP under all reasonable conditions.
1454 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1456 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1457 to allow version independent disabling of normally unselected ciphers,
1458 which may be activated as a side-effect of selecting a single cipher.
1460 (E.g., cipher list string "RSA" enables ciphersuites that are left
1461 out of "ALL" because they do not provide symmetric encryption.
1462 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1463 [Lutz Jaenicke, Bodo Moeller]
1465 *) Add appropriate support for separate platform-dependent build
1466 directories. The recommended way to make a platform-dependent
1467 build directory is the following (tested on Linux), maybe with
1470 # Place yourself outside of the OpenSSL source tree. In
1471 # this example, the environment variable OPENSSL_SOURCE
1472 # is assumed to contain the absolute OpenSSL source directory.
1473 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1474 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1475 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1476 mkdir -p `dirname $F`
1477 ln -s $OPENSSL_SOURCE/$F $F
1480 To be absolutely sure not to disturb the source tree, a "make clean"
1481 is a good thing. If it isn't successfull, don't worry about it,
1482 it probably means the source directory is very clean.
1485 *) Make sure any ENGINE control commands make local copies of string
1486 pointers passed to them whenever necessary. Otherwise it is possible
1487 the caller may have overwritten (or deallocated) the original string
1488 data when a later ENGINE operation tries to use the stored values.
1489 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1491 *) Improve diagnostics in file reading and command-line digests.
1492 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1494 *) Add AES modes CFB and OFB to the object database. Correct an
1495 error in AES-CFB decryption.
1498 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1499 allows existing EVP_CIPHER_CTX structures to be reused after
1500 calling EVP_*Final(). This behaviour is used by encryption
1501 BIOs and some applications. This has the side effect that
1502 applications must explicitly clean up cipher contexts with
1503 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1506 *) Check the values of dna and dnb in bn_mul_recursive before calling
1507 bn_mul_comba (a non zero value means the a or b arrays do not contain
1508 n2 elements) and fallback to bn_mul_normal if either is not zero.
1511 *) Fix escaping of non-ASCII characters when using the -subj option
1512 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1515 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1516 form for "surname", serialNumber has no short form.
1517 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1518 therefore remove "mail" short name for "internet 7".
1519 The OID for unique identifiers in X509 certificates is
1520 x500UniqueIdentifier, not uniqueIdentifier.
1521 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1524 *) Add an "init" command to the ENGINE config module and auto initialize
1525 ENGINEs. Without any "init" command the ENGINE will be initialized
1526 after all ctrl commands have been executed on it. If init=1 the
1527 ENGINE is initailized at that point (ctrls before that point are run
1528 on the uninitialized ENGINE and after on the initialized one). If
1529 init=0 then the ENGINE will not be iniatialized at all.
1532 *) Fix the 'app_verify_callback' interface so that the user-defined
1533 argument is actually passed to the callback: In the
1534 SSL_CTX_set_cert_verify_callback() prototype, the callback
1535 declaration has been changed from
1538 int (*cb)(X509_STORE_CTX *,void *);
1539 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1540 i=s->ctx->app_verify_callback(&ctx)
1541 has been changed into
1542 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1544 To update applications using SSL_CTX_set_cert_verify_callback(),
1545 a dummy argument can be added to their callback functions.
1546 [D. K. Smetters <smetters@parc.xerox.com>]
1548 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1549 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1551 *) Add and OPENSSL_LOAD_CONF define which will cause
1552 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1553 This allows older applications to transparently support certain
1554 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1555 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1556 load the config file and OPENSSL_add_all_algorithms_conf() which will
1557 always load it have also been added.
1560 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1561 Adjust NIDs and EVP layer.
1562 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1564 *) Config modules support in openssl utility.
1566 Most commands now load modules from the config file,
1567 though in a few (such as version) this isn't done
1568 because it couldn't be used for anything.
1570 In the case of ca and req the config file used is
1571 the same as the utility itself: that is the -config
1572 command line option can be used to specify an
1576 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1577 use "openssl_conf" if filename is NULL use default openssl config file.
1580 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1581 config section name. Add a new flag to tolerate a missing config file
1582 and move code to CONF_modules_load_file().
1585 *) Support for crypto accelerator cards from Accelerated Encryption
1586 Processing, www.aep.ie. (Use engine 'aep')
1587 The support was copied from 0.9.6c [engine] and adapted/corrected
1588 to work with the new engine framework.
1589 [AEP Inc. and Richard Levitte]
1591 *) Support for SureWare crypto accelerator cards from Baltimore
1592 Technologies. (Use engine 'sureware')
1593 The support was copied from 0.9.6c [engine] and adapted
1594 to work with the new engine framework.
1597 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1598 make the newer ENGINE framework commands for the CHIL engine work.
1599 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1601 *) Make it possible to produce shared libraries on ReliantUNIX.
1602 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1604 *) Add the configuration target debug-linux-ppro.
1605 Make 'openssl rsa' use the general key loading routines
1606 implemented in apps.c, and make those routines able to
1607 handle the key format FORMAT_NETSCAPE and the variant
1609 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1611 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1612 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1614 *) Add -keyform to rsautl, and document -engine.
1615 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1617 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1618 BIO_R_NO_SUCH_FILE error code rather than the generic
1619 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1622 *) Add new functions
1624 ERR_peek_last_error_line
1625 ERR_peek_last_error_line_data.
1626 These are similar to
1629 ERR_peek_error_line_data,
1630 but report on the latest error recorded rather than the first one
1631 still in the error queue.
1632 [Ben Laurie, Bodo Moeller]
1634 *) default_algorithms option in ENGINE config module. This allows things
1636 default_algorithms = ALL
1637 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1640 *) Prelminary ENGINE config module.
1643 *) New experimental application configuration code.
1646 *) Change the AES code to follow the same name structure as all other
1647 symmetric ciphers, and behave the same way. Move everything to
1648 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1649 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1651 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1652 [Ben Laurie and Theo de Raadt]
1654 *) Add option to output public keys in req command.
1655 [Massimiliano Pala madwolf@openca.org]
1657 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1658 (up to about 10% better than before for P-192 and P-224).
1661 *) New functions/macros
1663 SSL_CTX_set_msg_callback(ctx, cb)
1664 SSL_CTX_set_msg_callback_arg(ctx, arg)
1665 SSL_set_msg_callback(ssl, cb)
1666 SSL_set_msg_callback_arg(ssl, arg)
1668 to request calling a callback function
1670 void cb(int write_p, int version, int content_type,
1671 const void *buf, size_t len, SSL *ssl, void *arg)
1673 whenever a protocol message has been completely received
1674 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1675 protocol version according to which the SSL library interprets
1676 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1677 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1678 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1679 specification (change_cipher_spec(20), alert(21), handshake(22)).
1680 'buf' and 'len' point to the actual message, 'ssl' to the
1681 SSL object, and 'arg' is the application-defined value set by
1682 SSL[_CTX]_set_msg_callback_arg().
1684 'openssl s_client' and 'openssl s_server' have new '-msg' options
1685 to enable a callback that displays all protocol messages.
1688 *) Change the shared library support so shared libraries are built as
1689 soon as the corresponding static library is finished, and thereby get
1690 openssl and the test programs linked against the shared library.
1691 This still only happens when the keyword "shard" has been given to
1692 the configuration scripts.
1694 NOTE: shared library support is still an experimental thing, and
1695 backward binary compatibility is still not guaranteed.
1696 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1698 *) Add support for Subject Information Access extension.
1699 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1701 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1702 additional bytes when new memory had to be allocated, not just
1703 when reusing an existing buffer.
1706 *) New command line and configuration option 'utf8' for the req command.
1707 This allows field values to be specified as UTF8 strings.
1710 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1711 runs for the former and machine-readable output for the latter.
1714 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1715 of the e-mail address in the DN (i.e., it will go into a certificate
1716 extension only). The new configuration file option 'email_in_dn = no'
1717 has the same effect.
1718 [Massimiliano Pala madwolf@openca.org]
1720 *) Change all functions with names starting with des_ to be starting
1721 with DES_ instead. Add wrappers that are compatible with libdes,
1722 but are named _ossl_old_des_*. Finally, add macros that map the
1723 des_* symbols to the corresponding _ossl_old_des_* if libdes
1724 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1725 desired, the des_* symbols will be mapped to DES_*, with one
1728 Since we provide two compatibility mappings, the user needs to
1729 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1730 compatibility is desired. The default (i.e., when that macro
1731 isn't defined) is OpenSSL 0.9.6c compatibility.
1733 There are also macros that enable and disable the support of old
1734 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1735 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1736 are defined, the default will apply: to support the old des routines.
1738 In either case, one must include openssl/des.h to get the correct
1739 definitions. Do not try to just include openssl/des_old.h, that
1742 NOTE: This is a major break of an old API into a new one. Software
1743 authors are encouraged to switch to the DES_ style functions. Some
1744 time in the future, des_old.h and the libdes compatibility functions
1745 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1746 default), and then completely removed.
1749 *) Test for certificates which contain unsupported critical extensions.
1750 If such a certificate is found during a verify operation it is
1751 rejected by default: this behaviour can be overridden by either
1752 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1753 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1754 X509_supported_extension() has also been added which returns 1 if a
1755 particular extension is supported.
1758 *) Modify the behaviour of EVP cipher functions in similar way to digests
1759 to retain compatibility with existing code.
1762 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1763 compatibility with existing code. In particular the 'ctx' parameter does
1764 not have to be to be initialized before the call to EVP_DigestInit() and
1765 it is tidied up after a call to EVP_DigestFinal(). New function
1766 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1767 EVP_MD_CTX_copy() changed to not require the destination to be
1768 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1769 requires the destination to be valid.
1771 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1772 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1775 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1776 so that complete 'Handshake' protocol structures are kept in memory
1777 instead of overwriting 'msg_type' and 'length' with 'body' data.
1780 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1781 [Massimo Santin via Richard Levitte]
1783 *) Major restructuring to the underlying ENGINE code. This includes
1784 reduction of linker bloat, separation of pure "ENGINE" manipulation
1785 (initialisation, etc) from functionality dealing with implementations
1786 of specific crypto iterfaces. This change also introduces integrated
1787 support for symmetric ciphers and digest implementations - so ENGINEs
1788 can now accelerate these by providing EVP_CIPHER and EVP_MD
1789 implementations of their own. This is detailed in crypto/engine/README
1790 as it couldn't be adequately described here. However, there are a few
1791 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1792 were changed in the original introduction of ENGINE code have now
1793 reverted back - the hooking from this code to ENGINE is now a good
1794 deal more passive and at run-time, operations deal directly with
1795 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1796 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1797 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1798 they were not being used by the framework as there is no concept of a
1799 BIGNUM_METHOD and they could not be generalised to the new
1800 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1801 ENGINE_cpy() has been removed as it cannot be consistently defined in
1805 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1808 *) Change mkdef.pl to sort symbols that get the same entry number,
1809 and make sure the automatically generated functions ERR_load_*
1810 become part of libeay.num as well.
1813 *) New function SSL_renegotiate_pending(). This returns true once
1814 renegotiation has been requested (either SSL_renegotiate() call
1815 or HelloRequest/ClientHello receveived from the peer) and becomes
1816 false once a handshake has been completed.
1817 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1818 sends a HelloRequest, but does not ensure that a handshake takes
1819 place. SSL_renegotiate_pending() is useful for checking if the
1820 client has followed the request.)
1823 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1824 By default, clients may request session resumption even during
1825 renegotiation (if session ID contexts permit); with this option,
1826 session resumption is possible only in the first handshake.
1828 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1829 more bits available for options that should not be part of
1830 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1833 *) Add some demos for certificate and certificate request creation.
1836 *) Make maximum certificate chain size accepted from the peer application
1837 settable (SSL*_get/set_max_cert_list()), as proposed by
1838 "Douglas E. Engert" <deengert@anl.gov>.
1841 *) Add support for shared libraries for Unixware-7
1842 (Boyd Lynn Gerber <gerberb@zenez.com>).
1845 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1846 be done prior to destruction. Use this to unload error strings from
1847 ENGINEs that load their own error strings. NB: This adds two new API
1848 functions to "get" and "set" this destroy handler in an ENGINE.
1851 *) Alter all existing ENGINE implementations (except "openssl" and
1852 "openbsd") to dynamically instantiate their own error strings. This
1853 makes them more flexible to be built both as statically-linked ENGINEs
1854 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1855 Also, add stub code to each that makes building them as self-contained
1856 shared-libraries easier (see README.ENGINE).
1859 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1860 implementations into applications that are completely implemented in
1861 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1862 commands that can be used to configure what shared-library to load and
1863 to control aspects of the way it is handled. Also, made an update to
1864 the README.ENGINE file that brings its information up-to-date and
1865 provides some information and instructions on the "dynamic" ENGINE
1866 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1869 *) Make it possible to unload ranges of ERR strings with a new
1870 "ERR_unload_strings" function.
1873 *) Add a copy() function to EVP_MD.
1876 *) Make EVP_MD routines take a context pointer instead of just the
1877 md_data void pointer.
1880 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1881 that the digest can only process a single chunk of data
1882 (typically because it is provided by a piece of
1883 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1884 is only going to provide a single chunk of data, and hence the
1885 framework needn't accumulate the data for oneshot drivers.
1888 *) As with "ERR", make it possible to replace the underlying "ex_data"
1889 functions. This change also alters the storage and management of global
1890 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1891 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1892 index counters. The API functions that use this state have been changed
1893 to take a "class_index" rather than pointers to the class's local STACK
1894 and counter, and there is now an API function to dynamically create new
1895 classes. This centralisation allows us to (a) plug a lot of the
1896 thread-safety problems that existed, and (b) makes it possible to clean
1897 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1898 such data would previously have always leaked in application code and
1899 workarounds were in place to make the memory debugging turn a blind eye
1900 to it. Application code that doesn't use this new function will still
1901 leak as before, but their memory debugging output will announce it now
1902 rather than letting it slide.
1904 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1905 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1906 has a return value to indicate success or failure.
1909 *) Make it possible to replace the underlying "ERR" functions such that the
1910 global state (2 LHASH tables and 2 locks) is only used by the "default"
1911 implementation. This change also adds two functions to "get" and "set"
1912 the implementation prior to it being automatically set the first time
1913 any other ERR function takes place. Ie. an application can call "get",
1914 pass the return value to a module it has just loaded, and that module
1915 can call its own "set" function using that value. This means the
1916 module's "ERR" operations will use (and modify) the error state in the
1917 application and not in its own statically linked copy of OpenSSL code.
1920 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1921 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1922 the operation, and provides a more encapsulated way for external code
1923 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1924 to use these functions rather than manually incrementing the counts.
1926 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1929 *) Add EVP test program.
1932 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1935 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1936 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1937 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1938 These allow a CRL to be built without having to access X509_CRL fields
1939 directly. Modify 'ca' application to use new functions.
1942 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1943 bug workarounds. Rollback attack detection is a security feature.
1944 The problem will only arise on OpenSSL servers when TLSv1 is not
1945 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1946 Software authors not wanting to support TLSv1 will have special reasons
1947 for their choice and can explicitly enable this option.
1948 [Bodo Moeller, Lutz Jaenicke]
1950 *) Rationalise EVP so it can be extended: don't include a union of
1951 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1952 (similar to those existing for EVP_CIPHER_CTX).
1957 EVP_MD_CTX_init(&md); /* new function call */
1958 EVP_DigestInit(&md, EVP_sha1());
1959 EVP_DigestUpdate(&md, in, len);
1960 EVP_DigestFinal(&md, out, NULL);
1961 EVP_MD_CTX_cleanup(&md); /* new function call */
1965 *) Make DES key schedule conform to the usual scheme, as well as
1966 correcting its structure. This means that calls to DES functions
1967 now have to pass a pointer to a des_key_schedule instead of a
1968 plain des_key_schedule (which was actually always a pointer
1971 des_key_schedule ks;
1973 des_set_key_checked(..., &ks);
1974 des_ncbc_encrypt(..., &ks, ...);
1976 (Note that a later change renames 'des_...' into 'DES_...'.)
1979 *) Initial reduction of linker bloat: the use of some functions, such as
1980 PEM causes large amounts of unused functions to be linked in due to
1981 poor organisation. For example pem_all.c contains every PEM function
1982 which has a knock on effect of linking in large amounts of (unused)
1983 ASN1 code. Grouping together similar functions and splitting unrelated
1984 functions prevents this.
1987 *) Cleanup of EVP macros.
1990 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1991 correct _ecb suffix.
1994 *) Add initial OCSP responder support to ocsp application. The
1995 revocation information is handled using the text based index
1996 use by the ca application. The responder can either handle
1997 requests generated internally, supplied in files (for example
1998 via a CGI script) or using an internal minimal server.
2001 *) Add configuration choices to get zlib compression for TLS.
2004 *) Changes to Kerberos SSL for RFC 2712 compliance:
2005 1. Implemented real KerberosWrapper, instead of just using
2006 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2007 2. Implemented optional authenticator field of KerberosWrapper.
2009 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2010 and authenticator structs; see crypto/krb5/.
2012 Generalized Kerberos calls to support multiple Kerberos libraries.
2013 [Vern Staats <staatsvr@asc.hpc.mil>,
2014 Jeffrey Altman <jaltman@columbia.edu>
2015 via Richard Levitte]
2017 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2018 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2019 values for each of the key sizes rather than having just
2020 parameters (and 'speed' generating keys each time).
2023 *) Speed up EVP routines.
2026 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2027 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2028 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2029 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2031 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2032 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2033 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2036 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2038 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2041 *) Added the OS2-EMX target.
2042 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2044 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2045 to support NCONF routines in extension code. New function CONF_set_nconf()
2046 to allow functions which take an NCONF to also handle the old LHASH
2047 structure: this means that the old CONF compatible routines can be
2048 retained (in particular wrt extensions) without having to duplicate the
2049 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2052 *) Enhance the general user interface with mechanisms for inner control
2053 and with possibilities to have yes/no kind of prompts.
2056 *) Change all calls to low level digest routines in the library and
2057 applications to use EVP. Add missing calls to HMAC_cleanup() and
2058 don't assume HMAC_CTX can be copied using memcpy().
2059 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2061 *) Add the possibility to control engines through control names but with
2062 arbitrary arguments instead of just a string.
2063 Change the key loaders to take a UI_METHOD instead of a callback
2064 function pointer. NOTE: this breaks binary compatibility with earlier
2065 versions of OpenSSL [engine].
2066 Adapt the nCipher code for these new conditions and add a card insertion
2070 *) Enhance the general user interface with mechanisms to better support
2071 dialog box interfaces, application-defined prompts, the possibility
2072 to use defaults (for example default passwords from somewhere else)
2073 and interrupts/cancellations.
2076 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2077 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2080 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2081 tidy up some unnecessarily weird code in 'sk_new()').
2082 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2084 *) Change the key loading routines for ENGINEs to use the same kind
2085 callback (pem_password_cb) as all other routines that need this
2089 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2090 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2091 than this minimum value is recommended.
2094 *) New random seeder for OpenVMS, using the system process statistics
2095 that are easily reachable.
2098 *) Windows apparently can't transparently handle global
2099 variables defined in DLLs. Initialisations such as:
2101 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2103 wont compile. This is used by the any applications that need to
2104 declare their own ASN1 modules. This was fixed by adding the option
2105 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2106 needed for static libraries under Win32.
2109 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2110 setting of purpose and trust fields. New X509_STORE trust and
2111 purpose functions and tidy up setting in other SSL functions.
2114 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2115 structure. These are inherited by X509_STORE_CTX when it is
2116 initialised. This allows various defaults to be set in the
2117 X509_STORE structure (such as flags for CRL checking and custom
2118 purpose or trust settings) for functions which only use X509_STORE_CTX
2119 internally such as S/MIME.
2121 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2122 trust settings if they are not set in X509_STORE. This allows X509_STORE
2123 purposes and trust (in S/MIME for example) to override any set by default.
2125 Add command line options for CRL checking to smime, s_client and s_server
2129 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2130 are set then the CRL is looked up in the X509_STORE structure and
2131 its validity and signature checked, then if the certificate is found
2132 in the CRL the verify fails with a revoked error.
2134 Various new CRL related callbacks added to X509_STORE_CTX structure.
2136 Command line options added to 'verify' application to support this.
2138 This needs some additional work, such as being able to handle multiple
2139 CRLs with different times, extension based lookup (rather than just
2140 by subject name) and ultimately more complete V2 CRL extension
2144 *) Add a general user interface API (crypto/ui/). This is designed
2145 to replace things like des_read_password and friends (backward
2146 compatibility functions using this new API are provided).
2147 The purpose is to remove prompting functions from the DES code
2148 section as well as provide for prompting through dialog boxes in
2149 a window system and the like.
2152 *) Add "ex_data" support to ENGINE so implementations can add state at a
2153 per-structure level rather than having to store it globally.
2156 *) Make it possible for ENGINE structures to be copied when retrieved by
2157 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2158 This causes the "original" ENGINE structure to act like a template,
2159 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2160 operational state can be localised to each ENGINE structure, despite the
2161 fact they all share the same "methods". New ENGINE structures returned in
2162 this case have no functional references and the return value is the single
2163 structural reference. This matches the single structural reference returned
2164 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2168 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2169 needs to match any other type at all we need to manually clear the
2173 *) Changes to the "openssl engine" utility to include;
2174 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2175 about an ENGINE's available control commands.
2176 - executing control commands from command line arguments using the
2177 '-pre' and '-post' switches. '-post' is only used if '-t' is
2178 specified and the ENGINE is successfully initialised. The syntax for
2179 the individual commands are colon-separated, for example;
2180 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2183 *) New dynamic control command support for ENGINEs. ENGINEs can now
2184 declare their own commands (numbers), names (strings), descriptions,
2185 and input types for run-time discovery by calling applications. A
2186 subset of these commands are implicitly classed as "executable"
2187 depending on their input type, and only these can be invoked through
2188 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2189 can be based on user input, config files, etc). The distinction is
2190 that "executable" commands cannot return anything other than a boolean
2191 result and can only support numeric or string input, whereas some
2192 discoverable commands may only be for direct use through
2193 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2194 pointers, or other custom uses. The "executable" commands are to
2195 support parameterisations of ENGINE behaviour that can be
2196 unambiguously defined by ENGINEs and used consistently across any
2197 OpenSSL-based application. Commands have been added to all the
2198 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2199 control over shared-library paths without source code alterations.
2202 *) Changed all ENGINE implementations to dynamically allocate their
2203 ENGINEs rather than declaring them statically. Apart from this being
2204 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2205 this also allows the implementations to compile without using the
2206 internal engine_int.h header.
2209 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2210 'const' value. Any code that should be able to modify a RAND_METHOD
2211 should already have non-const pointers to it (ie. they should only
2212 modify their own ones).
2215 *) Made a variety of little tweaks to the ENGINE code.
2216 - "atalla" and "ubsec" string definitions were moved from header files
2217 to C code. "nuron" string definitions were placed in variables
2218 rather than hard-coded - allowing parameterisation of these values
2219 later on via ctrl() commands.
2220 - Removed unused "#if 0"'d code.
2221 - Fixed engine list iteration code so it uses ENGINE_free() to release
2222 structural references.
2223 - Constified the RAND_METHOD element of ENGINE structures.
2224 - Constified various get/set functions as appropriate and added
2225 missing functions (including a catch-all ENGINE_cpy that duplicates
2226 all ENGINE values onto a new ENGINE except reference counts/state).
2227 - Removed NULL parameter checks in get/set functions. Setting a method
2228 or function to NULL is a way of cancelling out a previously set
2229 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2230 and doesn't justify the extra error symbols and code.
2231 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2232 flags from engine_int.h to engine.h.
2233 - Changed prototypes for ENGINE handler functions (init(), finish(),
2234 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2237 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2238 to the algorithm using long division. The binary algorithm can be
2239 used only if the modulus is odd. On 32-bit systems, it is faster
2240 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2241 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2242 up to 450 bits. In 64-bit environments, the binary algorithm
2243 appears to be advantageous for much longer moduli; here we use it
2244 for moduli up to 2048 bits.
2247 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2248 could not support the combine flag in choice fields.
2251 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2252 extensions from a certificate request to the certificate.
2255 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2256 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2257 file: this allows the display of the certificate about to be
2258 signed to be customised, to allow certain fields to be included
2259 or excluded and extension details. The old system didn't display
2260 multicharacter strings properly, omitted fields not in the policy
2261 and couldn't display additional details such as extensions.
2264 *) Function EC_POINTs_mul for multiple scalar multiplication
2265 of an arbitrary number of elliptic curve points
2266 \sum scalars[i]*points[i],
2267 optionally including the generator defined for the EC_GROUP:
2268 scalar*generator + \sum scalars[i]*points[i].
2270 EC_POINT_mul is a simple wrapper function for the typical case
2271 that the point list has just one item (besides the optional
2275 *) First EC_METHODs for curves over GF(p):
2277 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2278 operations and provides various method functions that can also
2279 operate with faster implementations of modular arithmetic.
2281 EC_GFp_mont_method() reuses most functions that are part of
2282 EC_GFp_simple_method, but uses Montgomery arithmetic.
2284 [Bodo Moeller; point addition and point doubling
2285 implementation directly derived from source code provided by
2286 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2288 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2289 crypto/ec/ec_lib.c):
2291 Curves are EC_GROUP objects (with an optional group generator)
2292 based on EC_METHODs that are built into the library.
2294 Points are EC_POINT objects based on EC_GROUP objects.
2296 Most of the framework would be able to handle curves over arbitrary
2297 finite fields, but as there are no obvious types for fields other
2298 than GF(p), some functions are limited to that for now.
2301 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2302 that the file contains a complete HTTP response.
2305 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2306 change the def and num file printf format specifier from "%-40sXXX"
2307 to "%-39s XXX". The latter will always guarantee a space after the
2308 field while the former will cause them to run together if the field
2309 is 40 of more characters long.
2312 *) Constify the cipher and digest 'method' functions and structures
2313 and modify related functions to take constant EVP_MD and EVP_CIPHER
2317 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2318 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2321 *) Modify EVP_Digest*() routines so they now return values. Although the
2322 internal software routines can never fail additional hardware versions
2326 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2328 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2329 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2332 ERR_R_NESTED_ASN1_ERROR
2334 ERR_R_MISSING_ASN1_EOS
2335 were 4 .. 9, conflicting with
2336 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2338 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2339 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2341 Add new error code 'ERR_R_INTERNAL_ERROR'.
2344 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2348 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2349 sets the subject name for a new request or supersedes the
2350 subject name in a given request. Formats that can be parsed are
2351 'CN=Some Name, OU=myOU, C=IT'
2353 'CN=Some Name/OU=myOU/C=IT'.
2355 Add options '-batch' and '-verbose' to 'openssl req'.
2356 [Massimiliano Pala <madwolf@hackmasters.net>]
2358 *) Introduce the possibility to access global variables through
2359 functions on platform were that's the best way to handle exporting
2360 global variables in shared libraries. To enable this functionality,
2361 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2362 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2363 is normally done by Configure or something similar).
2365 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2366 in the source file (foo.c) like this:
2368 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2369 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2371 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2372 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2374 OPENSSL_DECLARE_GLOBAL(int,foo);
2375 #define foo OPENSSL_GLOBAL_REF(foo)
2376 OPENSSL_DECLARE_GLOBAL(double,bar);
2377 #define bar OPENSSL_GLOBAL_REF(bar)
2379 The #defines are very important, and therefore so is including the
2380 header file everywhere where the defined globals are used.
2382 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2383 of ASN.1 items, but that structure is a bit different.
2385 The largest change is in util/mkdef.pl which has been enhanced with
2386 better and easier to understand logic to choose which symbols should
2387 go into the Windows .def files as well as a number of fixes and code
2388 cleanup (among others, algorithm keywords are now sorted
2389 lexicographically to avoid constant rewrites).
2392 *) In BN_div() keep a copy of the sign of 'num' before writing the
2393 result to 'rm' because if rm==num the value will be overwritten
2394 and produce the wrong result if 'num' is negative: this caused
2395 problems with BN_mod() and BN_nnmod().
2398 *) Function OCSP_request_verify(). This checks the signature on an
2399 OCSP request and verifies the signer certificate. The signer
2400 certificate is just checked for a generic purpose and OCSP request
2404 *) Add OCSP_check_validity() function to check the validity of OCSP
2405 responses. OCSP responses are prepared in real time and may only
2406 be a few seconds old. Simply checking that the current time lies
2407 between thisUpdate and nextUpdate max reject otherwise valid responses
2408 caused by either OCSP responder or client clock inaccuracy. Instead
2409 we allow thisUpdate and nextUpdate to fall within a certain period of
2410 the current time. The age of the response can also optionally be
2411 checked. Two new options -validity_period and -status_age added to
2415 *) If signature or public key algorithm is unrecognized print out its
2416 OID rather that just UNKNOWN.
2419 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2420 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2421 ID to be generated from the issuer certificate alone which can then be
2422 passed to OCSP_id_issuer_cmp().
2425 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2426 ASN1 modules to export functions returning ASN1_ITEM pointers
2427 instead of the ASN1_ITEM structures themselves. This adds several
2428 new macros which allow the underlying ASN1 function/structure to
2429 be accessed transparently. As a result code should not use ASN1_ITEM
2430 references directly (such as &X509_it) but instead use the relevant
2431 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2432 use of the new ASN1 code on platforms where exporting structures
2433 is problematical (for example in shared libraries) but exporting
2434 functions returning pointers to structures is not.
2437 *) Add support for overriding the generation of SSL/TLS session IDs.
2438 These callbacks can be registered either in an SSL_CTX or per SSL.
2439 The purpose of this is to allow applications to control, if they wish,
2440 the arbitrary values chosen for use as session IDs, particularly as it
2441 can be useful for session caching in multiple-server environments. A
2442 command-line switch for testing this (and any client code that wishes
2443 to use such a feature) has been added to "s_server".
2444 [Geoff Thorpe, Lutz Jaenicke]
2446 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2447 of the form '#if defined(...) || defined(...) || ...' and
2448 '#if !defined(...) && !defined(...) && ...'. This also avoids
2449 the growing number of special cases it was previously handling.
2452 *) Make all configuration macros available for application by making
2453 sure they are available in opensslconf.h, by giving them names starting
2454 with "OPENSSL_" to avoid conflicts with other packages and by making
2455 sure e_os2.h will cover all platform-specific cases together with
2457 Additionally, it is now possible to define configuration/platform-
2458 specific names (called "system identities"). In the C code, these
2459 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2460 macro with the name beginning with "OPENSSL_SYS_", which is determined
2461 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2465 *) New option -set_serial to 'req' and 'x509' this allows the serial
2466 number to use to be specified on the command line. Previously self
2467 signed certificates were hard coded with serial number 0 and the
2468 CA options of 'x509' had to use a serial number in a file which was
2472 *) New options to 'ca' utility to support V2 CRL entry extensions.
2473 Currently CRL reason, invalidity date and hold instruction are
2474 supported. Add new CRL extensions to V3 code and some new objects.
2477 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2478 disable standard block padding (aka PKCS#5 padding) in the EVP
2479 API, which was previously mandatory. This means that the data is
2480 not padded in any way and so the total length much be a multiple
2481 of the block size, otherwise an error occurs.
2484 *) Initial (incomplete) OCSP SSL support.
2487 *) New function OCSP_parse_url(). This splits up a URL into its host,
2488 port and path components: primarily to parse OCSP URLs. New -url
2489 option to ocsp utility.
2492 *) New nonce behavior. The return value of OCSP_check_nonce() now
2493 reflects the various checks performed. Applications can decide
2494 whether to tolerate certain situations such as an absent nonce
2495 in a response when one was present in a request: the ocsp application
2496 just prints out a warning. New function OCSP_add1_basic_nonce()
2497 this is to allow responders to include a nonce in a response even if
2498 the request is nonce-less.
2501 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2502 skipped when using openssl x509 multiple times on a single input file,
2503 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2506 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2507 set string type: to handle setting ASN1_TIME structures. Fix ca
2508 utility to correctly initialize revocation date of CRLs.
2511 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2512 the clients preferred ciphersuites and rather use its own preferences.
2513 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2514 Internet Explorer by ensuring unchanged hash method during stepup.
2515 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2518 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2519 to aes and add a new 'exist' option to print out symbols that don't
2523 *) Additional options to ocsp utility to allow flags to be set and
2524 additional certificates supplied.
2527 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2528 OCSP client a number of certificate to only verify the response
2532 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2533 handle the new API. Currently only ECB, CBC modes supported. Add new
2536 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2537 Encryption Standard (AES) Ciphersuites for Transport Layer
2538 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2539 not enabled by default and were not part of the "ALL" ciphersuite
2540 alias because they were not yet official; they could be
2541 explicitly requested by specifying the "AESdraft" ciphersuite
2542 group alias. In the final release of OpenSSL 0.9.7, the group
2543 alias is called "AES" and is part of "ALL".)
2544 [Ben Laurie, Steve Henson, Bodo Moeller]
2546 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2547 request to response.
2550 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2551 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2552 extract information from a certificate request. OCSP_response_create()
2553 creates a response and optionally adds a basic response structure.
2554 OCSP_basic_add1_status() adds a complete single response to a basic
2555 response and returns the OCSP_SINGLERESP structure just added (to allow
2556 extensions to be included for example). OCSP_basic_add1_cert() adds a
2557 certificate to a basic response and OCSP_basic_sign() signs a basic
2558 response with various flags. New helper functions ASN1_TIME_check()
2559 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2560 (converts ASN1_TIME to GeneralizedTime).
2563 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2564 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2565 structure from a certificate. X509_pubkey_digest() digests the public_key
2566 contents: this is used in various key identifiers.
2569 *) Make sk_sort() tolerate a NULL argument.
2570 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2572 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2573 passed by the function are trusted implicitly. If any of them signed the
2574 response then it is assumed to be valid and is not verified.
2577 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2578 to data. This was previously part of the PKCS7 ASN1 code. This
2579 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2580 [Steve Henson, reported by Kenneth R. Robinette
2581 <support@securenetterm.com>]
2583 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2584 routines: without these tracing memory leaks is very painful.
2585 Fix leaks in PKCS12 and PKCS7 routines.
2588 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2589 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2590 effectively meant GeneralizedTime would never be used. Now it
2591 is initialised to -1 but X509_time_adj() now has to check the value
2592 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2593 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2594 [Steve Henson, reported by Kenneth R. Robinette
2595 <support@securenetterm.com>]
2597 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2598 result in a zero length in the ASN1_INTEGER structure which was
2599 not consistent with the structure when d2i_ASN1_INTEGER() was used
2600 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2601 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2602 where it did not print out a minus for negative ASN1_INTEGER.
2605 *) Add summary printout to ocsp utility. The various functions which
2606 convert status values to strings have been renamed to:
2607 OCSP_response_status_str(), OCSP_cert_status_str() and
2608 OCSP_crl_reason_str() and are no longer static. New options
2609 to verify nonce values and to disable verification. OCSP response
2610 printout format cleaned up.
2613 *) Add additional OCSP certificate checks. These are those specified
2614 in RFC2560. This consists of two separate checks: the CA of the
2615 certificate being checked must either be the OCSP signer certificate
2616 or the issuer of the OCSP signer certificate. In the latter case the
2617 OCSP signer certificate must contain the OCSP signing extended key
2618 usage. This check is performed by attempting to match the OCSP
2619 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2620 in the OCSP_CERTID structures of the response.
2623 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2624 and related routines. This uses the standard OpenSSL certificate
2625 verify routines to perform initial checks (just CA validity) and
2626 to obtain the certificate chain. Then additional checks will be
2627 performed on the chain. Currently the root CA is checked to see
2628 if it is explicitly trusted for OCSP signing. This is used to set
2629 a root CA as a global signing root: that is any certificate that
2630 chains to that CA is an acceptable OCSP signing certificate.
2633 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2634 extensions from a separate configuration file.
2635 As when reading extensions from the main configuration file,
2636 the '-extensions ...' option may be used for specifying the
2638 [Massimiliano Pala <madwolf@comune.modena.it>]
2640 *) New OCSP utility. Allows OCSP requests to be generated or
2641 read. The request can be sent to a responder and the output
2642 parsed, outputed or printed in text form. Not complete yet:
2643 still needs to check the OCSP response validity.
2646 *) New subcommands for 'openssl ca':
2647 'openssl ca -status <serial>' prints the status of the cert with
2648 the given serial number (according to the index file).
2649 'openssl ca -updatedb' updates the expiry status of certificates
2651 [Massimiliano Pala <madwolf@comune.modena.it>]
2653 *) New '-newreq-nodes' command option to CA.pl. This is like
2654 '-newreq', but calls 'openssl req' with the '-nodes' option
2655 so that the resulting key is not encrypted.
2656 [Damien Miller <djm@mindrot.org>]
2658 *) New configuration for the GNU Hurd.
2659 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2661 *) Initial code to implement OCSP basic response verify. This
2662 is currently incomplete. Currently just finds the signer's
2663 certificate and verifies the signature on the response.
2666 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2667 value of OPENSSLDIR. This is available via the new '-d' option
2668 to 'openssl version', and is also included in 'openssl version -a'.
2671 *) Allowing defining memory allocation callbacks that will be given
2672 file name and line number information in additional arguments
2673 (a const char* and an int). The basic functionality remains, as
2674 well as the original possibility to just replace malloc(),
2675 realloc() and free() by functions that do not know about these
2676 additional arguments. To register and find out the current
2677 settings for extended allocation functions, the following
2678 functions are provided:
2680 CRYPTO_set_mem_ex_functions
2681 CRYPTO_set_locked_mem_ex_functions
2682 CRYPTO_get_mem_ex_functions
2683 CRYPTO_get_locked_mem_ex_functions
2685 These work the same way as CRYPTO_set_mem_functions and friends.
2686 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2687 extended allocation function is enabled.
2688 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2689 a conventional allocation function is enabled.
2690 [Richard Levitte, Bodo Moeller]
2692 *) Finish off removing the remaining LHASH function pointer casts.
2693 There should no longer be any prototype-casting required when using
2694 the LHASH abstraction, and any casts that remain are "bugs". See
2695 the callback types and macros at the head of lhash.h for details
2696 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2699 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2700 If /dev/[u]random devices are not available or do not return enough
2701 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2703 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2704 /etc/entropy will be queried once each in this sequence, quering stops
2705 when enough entropy was collected without querying more sockets.
2708 *) Change the Unix RAND_poll() variant to be able to poll several
2709 random devices, as specified by DEVRANDOM, until a sufficient amount
2710 of data has been collected. We spend at most 10 ms on each file
2711 (select timeout) and read in non-blocking mode. DEVRANDOM now
2712 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2713 (previously it was just the string "/dev/urandom"), so on typical
2714 platforms the 10 ms delay will never occur.
2715 Also separate out the Unix variant to its own file, rand_unix.c.
2716 For VMS, there's a currently-empty rand_vms.c.
2719 *) Move OCSP client related routines to ocsp_cl.c. These
2720 provide utility functions which an application needing
2721 to issue a request to an OCSP responder and analyse the
2722 response will typically need: as opposed to those which an
2723 OCSP responder itself would need which will be added later.
2725 OCSP_request_sign() signs an OCSP request with an API similar
2726 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2727 response. OCSP_response_get1_basic() extracts basic response
2728 from response. OCSP_resp_find_status(): finds and extracts status
2729 information from an OCSP_CERTID structure (which will be created
2730 when the request structure is built). These are built from lower
2731 level functions which work on OCSP_SINGLERESP structures but
2732 wont normally be used unless the application wishes to examine
2733 extensions in the OCSP response for example.
2735 Replace nonce routines with a pair of functions.
2736 OCSP_request_add1_nonce() adds a nonce value and optionally
2737 generates a random value. OCSP_check_nonce() checks the
2738 validity of the nonce in an OCSP response.
2741 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2742 This doesn't copy the supplied OCSP_CERTID and avoids the
2743 need to free up the newly created id. Change return type
2744 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2745 This can then be used to add extensions to the request.
2746 Deleted OCSP_request_new(), since most of its functionality
2747 is now in OCSP_REQUEST_new() (and the case insensitive name
2748 clash) apart from the ability to set the request name which
2749 will be added elsewhere.
2752 *) Update OCSP API. Remove obsolete extensions argument from
2753 various functions. Extensions are now handled using the new
2754 OCSP extension code. New simple OCSP HTTP function which
2755 can be used to send requests and parse the response.
2758 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2759 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2760 uses the special reorder version of SET OF to sort the attributes
2761 and reorder them to match the encoded order. This resolves a long
2762 standing problem: a verify on a PKCS7 structure just after signing
2763 it used to fail because the attribute order did not match the
2764 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2765 it uses the received order. This is necessary to tolerate some broken
2766 software that does not order SET OF. This is handled by encoding
2767 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2768 to produce the required SET OF.
2771 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2772 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2773 files to get correct declarations of the ASN.1 item variables.
2776 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2777 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2778 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2779 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2780 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2781 ASN1_ITEM and no wrapper functions.
2784 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2785 replace the old function pointer based I/O routines. Change most of
2786 the *_d2i_bio() and *_d2i_fp() functions to use these.
2789 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2790 lines, recognice more "algorithms" that can be deselected, and make
2791 it complain about algorithm deselection that isn't recognised.
2794 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2795 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2796 to use new functions. Add NO_ASN1_OLD which can be set to remove
2797 some old style ASN1 functions: this can be used to determine if old
2798 code will still work when these eventually go away.
2801 *) New extension functions for OCSP structures, these follow the
2802 same conventions as certificates and CRLs.
2805 *) New function X509V3_add1_i2d(). This automatically encodes and
2806 adds an extension. Its behaviour can be customised with various
2807 flags to append, replace or delete. Various wrappers added for
2808 certifcates and CRLs.
2811 *) Fix to avoid calling the underlying ASN1 print routine when
2812 an extension cannot be parsed. Correct a typo in the
2813 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2816 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2817 entries for variables.
2820 *) Add functionality to apps/openssl.c for detecting locking
2821 problems: As the program is single-threaded, all we have
2822 to do is register a locking callback using an array for
2823 storing which locks are currently held by the program.
2826 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2827 SSL_get_ex_data_X509_STORE_idx(), which is used in
2828 ssl_verify_cert_chain() and thus can be called at any time
2829 during TLS/SSL handshakes so that thread-safety is essential.
2830 Unfortunately, the ex_data design is not at all suited
2831 for multi-threaded use, so it probably should be abolished.
2834 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2835 [Broadcom, tweaked and integrated by Geoff Thorpe]
2837 *) Move common extension printing code to new function
2838 X509V3_print_extensions(). Reorganise OCSP print routines and
2839 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2842 *) New function X509_signature_print() to remove duplication in some
2846 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2847 set (this was treated exactly the same as SET OF previously). This
2848 is used to reorder the STACK representing the structure to match the
2849 encoding. This will be used to get round a problem where a PKCS7
2850 structure which was signed could not be verified because the STACK
2851 order did not reflect the encoded order.
2854 *) Reimplement the OCSP ASN1 module using the new code.
2857 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2858 for its ASN1 operations. The old style function pointers still exist
2859 for now but they will eventually go away.
2862 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2863 completely replaces the old ASN1 functionality with a table driven
2864 encoder and decoder which interprets an ASN1_ITEM structure describing
2865 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2866 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2867 has also been converted to the new form.
2870 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2871 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2872 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2873 for negative moduli.
2876 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2877 of not touching the result's sign bit.
2880 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2884 *) Changed the LHASH code to use prototypes for callbacks, and created
2885 macros to declare and implement thin (optionally static) functions
2886 that provide type-safety and avoid function pointer casting for the
2887 type-specific callbacks.
2890 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2892 [Veers Staats <staatsvr@asc.hpc.mil>,
2893 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2895 *) Reformat the FAQ so the different questions and answers can be divided
2896 in sections depending on the subject.
2899 *) Have the zlib compression code load ZLIB.DLL dynamically under
2903 *) New function BN_mod_sqrt for computing square roots modulo a prime
2904 (using the probabilistic Tonelli-Shanks algorithm unless
2905 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2906 be handled deterministically).
2907 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2909 *) Make BN_mod_inverse faster by explicitly handling small quotients
2910 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2911 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2914 *) New function BN_kronecker.
2917 *) Fix BN_gcd so that it works on negative inputs; the result is
2918 positive unless both parameters are zero.
2919 Previously something reasonably close to an infinite loop was
2920 possible because numbers could be growing instead of shrinking
2921 in the implementation of Euclid's algorithm.
2924 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2925 sign of the number in question.
2927 Fix BN_is_word(a,w) to work correctly for w == 0.
2929 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2930 because its test if the absolute value of 'a' equals 'w'.
2931 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2932 it exists mostly for use in the implementations of BN_is_zero(),
2933 BN_is_one(), and BN_is_word().
2936 *) New function BN_swap.
2939 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2940 the exponentiation functions are more likely to produce reasonable
2941 results on negative inputs.
2944 *) Change BN_mod_mul so that the result is always non-negative.
2945 Previously, it could be negative if one of the factors was negative;
2946 I don't think anyone really wanted that behaviour.
2949 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2950 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2951 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2952 and add new functions:
2961 BN_mod_lshift1_quick
2965 These functions always generate non-negative results.
2967 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2968 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2970 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2971 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2972 be reduced modulo m.
2973 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2976 The following entry accidentily appeared in the CHANGES file
2977 distributed with OpenSSL 0.9.7. The modifications described in
2978 it do *not* apply to OpenSSL 0.9.7.
2980 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2981 was actually never needed) and in BN_mul(). The removal in BN_mul()
2982 required a small change in bn_mul_part_recursive() and the addition
2983 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2984 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2985 bn_sub_words() and bn_add_words() except they take arrays with
2990 *) In 'openssl passwd', verify passwords read from the terminal
2991 unless the '-salt' option is used (which usually means that
2992 verification would just waste user's time since the resulting
2993 hash is going to be compared with some given password hash)
2994 or the new '-noverify' option is used.
2996 This is an incompatible change, but it does not affect
2997 non-interactive use of 'openssl passwd' (passwords on the command
2998 line, '-stdin' option, '-in ...' option) and thus should not
3002 *) Remove all references to RSAref, since there's no more need for it.
3005 *) Make DSO load along a path given through an environment variable
3006 (SHLIB_PATH) with shl_load().
3009 *) Constify the ENGINE code as a result of BIGNUM constification.
3010 Also constify the RSA code and most things related to it. In a
3011 few places, most notable in the depth of the ASN.1 code, ugly
3012 casts back to non-const were required (to be solved at a later
3016 *) Make it so the openssl application has all engines loaded by default.
3019 *) Constify the BIGNUM routines a little more.
3022 *) Add the following functions:
3024 ENGINE_load_cswift()
3026 ENGINE_load_atalla()
3028 ENGINE_load_builtin_engines()
3030 That way, an application can itself choose if external engines that
3031 are built-in in OpenSSL shall ever be used or not. The benefit is
3032 that applications won't have to be linked with libdl or other dso
3033 libraries unless it's really needed.
3035 Changed 'openssl engine' to load all engines on demand.
3036 Changed the engine header files to avoid the duplication of some
3037 declarations (they differed!).
3040 *) 'openssl engine' can now list capabilities.
3043 *) Better error reporting in 'openssl engine'.
3046 *) Never call load_dh_param(NULL) in s_server.
3049 *) Add engine application. It can currently list engines by name and
3050 identity, and test if they are actually available.
3053 *) Improve RPM specification file by forcing symbolic linking and making
3054 sure the installed documentation is also owned by root.root.
3055 [Damien Miller <djm@mindrot.org>]
3057 *) Give the OpenSSL applications more possibilities to make use of
3058 keys (public as well as private) handled by engines.
3061 *) Add OCSP code that comes from CertCo.
3064 *) Add VMS support for the Rijndael code.
3067 *) Added untested support for Nuron crypto accelerator.
3070 *) Add support for external cryptographic devices. This code was
3071 previously distributed separately as the "engine" branch.
3072 [Geoff Thorpe, Richard Levitte]
3074 *) Rework the filename-translation in the DSO code. It is now possible to
3075 have far greater control over how a "name" is turned into a filename
3076 depending on the operating environment and any oddities about the
3077 different shared library filenames on each system.
3080 *) Support threads on FreeBSD-elf in Configure.
3083 *) Fix for SHA1 assembly problem with MASM: it produces
3084 warnings about corrupt line number information when assembling
3085 with debugging information. This is caused by the overlapping
3087 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3090 NCONF_get_number() has no error checking at all. As a replacement,
3091 NCONF_get_number_e() is defined (_e for "error checking") and is
3092 promoted strongly. The old NCONF_get_number is kept around for
3093 binary backward compatibility.
3094 Make it possible for methods to load from something other than a BIO,
3095 by providing a function pointer that is given a name instead of a BIO.
3096 For example, this could be used to load configuration data from an
3100 *) Fix for non blocking accept BIOs. Added new I/O special reason
3101 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3102 with non blocking I/O was not possible because no retry code was
3103 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3107 *) Added the beginnings of Rijndael support.
3110 *) Fix for bug in DirectoryString mask setting. Add support for
3111 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3112 to allow certificate printing to more controllable, additional
3113 'certopt' option to 'x509' to allow new printing options to be
3117 *) Clean old EAY MD5 hack from e_os.h.
3120 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3122 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3123 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3124 [Joe Orton, Steve Henson]
3126 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3128 *) Fix additional bug revealed by the NISCC test suite:
3130 Stop bug triggering large recursion when presented with
3131 certain ASN.1 tags (CVE-2003-0851)
3134 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3136 *) Fix various bugs revealed by running the NISCC test suite:
3138 Stop out of bounds reads in the ASN1 code when presented with
3139 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3141 If verify callback ignores invalid public key errors don't try to check
3142 certificate signature with the NULL public key.
3146 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3147 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3151 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3152 extra data after the compression methods not only for TLS 1.0
3153 but also for SSL 3.0 (as required by the specification).
3154 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3156 *) Change X509_certificate_type() to mark the key as exported/exportable
3157 when it's 512 *bits* long, not 512 bytes.
3160 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3162 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3163 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3164 a protocol version number mismatch like a decryption error
3165 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3168 *) Turn on RSA blinding by default in the default implementation
3169 to avoid a timing attack. Applications that don't want it can call
3170 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3171 They would be ill-advised to do so in most cases.
3172 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3174 *) Change RSA blinding code so that it works when the PRNG is not
3175 seeded (in this case, the secret RSA exponent is abused as
3176 an unpredictable seed -- if it is not unpredictable, there
3177 is no point in blinding anyway). Make RSA blinding thread-safe
3178 by remembering the creator's thread ID in rsa->blinding and
3179 having all other threads use local one-time blinding factors
3180 (this requires more computation than sharing rsa->blinding, but
3181 avoids excessive locking; and if an RSA object is not shared
3182 between threads, blinding will still be very fast).
3185 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3187 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3188 via timing by performing a MAC computation even if incorrrect
3189 block cipher padding has been found. This is a countermeasure
3190 against active attacks where the attacker has to distinguish
3191 between bad padding and a MAC verification error. (CVE-2003-0078)
3193 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3194 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3195 Martin Vuagnoux (EPFL, Ilion)]
3197 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3199 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3200 memory from it's contents. This is done with a counter that will
3201 place alternating values in each byte. This can be used to solve
3202 two issues: 1) the removal of calls to memset() by highly optimizing
3203 compilers, and 2) cleansing with other values than 0, since those can
3204 be read through on certain media, for example a swap space on disk.
3207 *) Bugfix: client side session caching did not work with external caching,
3208 because the session->cipher setting was not restored when reloading
3209 from the external cache. This problem was masked, when
3210 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3211 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3214 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3215 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3216 [Zeev Lieber <zeev-l@yahoo.com>]
3218 *) Undo an undocumented change introduced in 0.9.6e which caused
3219 repeated calls to OpenSSL_add_all_ciphers() and
3220 OpenSSL_add_all_digests() to be ignored, even after calling
3224 *) Change the default configuration reader to deal with last line not
3225 being properly terminated.
3228 *) Change X509_NAME_cmp() so it applies the special rules on handling
3229 DN values that are of type PrintableString, as well as RDNs of type
3230 emailAddress where the value has the type ia5String.
3231 [stefank@valicert.com via Richard Levitte]
3233 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3234 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3235 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3236 the bitwise-OR of the two for use by the majority of applications
3237 wanting this behaviour, and update the docs. The documented
3238 behaviour and actual behaviour were inconsistent and had been
3239 changing anyway, so this is more a bug-fix than a behavioural
3241 [Geoff Thorpe, diagnosed by Nadav Har'El]
3243 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3244 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3247 *) Fix initialization code race conditions in
3248 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3249 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3250 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3251 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3252 ssl2_get_cipher_by_char(),
3253 ssl3_get_cipher_by_char().
3254 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3256 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3257 the cached sessions are flushed, as the remove_cb() might use ex_data
3258 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3259 (see [openssl.org #212]).
3260 [Geoff Thorpe, Lutz Jaenicke]
3262 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3263 length, instead of the encoding length to d2i_ASN1_OBJECT.
3266 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3268 *) [In 0.9.6g-engine release:]
3269 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3270 [Lynn Gazis <lgazis@rainbow.com>]
3272 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3274 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3275 and get fix the header length calculation.
3276 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3277 Alon Kantor <alonk@checkpoint.com> (and others),
3280 *) Use proper error handling instead of 'assertions' in buffer
3281 overflow checks added in 0.9.6e. This prevents DoS (the
3282 assertions could call abort()).
3283 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3285 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3287 *) Add various sanity checks to asn1_get_length() to reject
3288 the ASN1 length bytes if they exceed sizeof(long), will appear
3289 negative or the content length exceeds the length of the
3291 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3293 *) Fix cipher selection routines: ciphers without encryption had no flags
3294 for the cipher strength set and where therefore not handled correctly
3295 by the selection routines (PR #130).
3298 *) Fix EVP_dsa_sha macro.
3302 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3303 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3304 that was added in OpenSSL 0.9.6d.
3306 As the countermeasure turned out to be incompatible with some
3307 broken SSL implementations, the new option is part of SSL_OP_ALL.
3308 SSL_OP_ALL is usually employed when compatibility with weird SSL
3309 implementations is desired (e.g. '-bugs' option to 's_client' and
3310 's_server'), so the new option is automatically set in many
3314 *) Changes in security patch:
3316 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3317 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3318 Air Force Materiel Command, USAF, under agreement number
3321 *) Add various sanity checks to asn1_get_length() to reject
3322 the ASN1 length bytes if they exceed sizeof(long), will appear
3323 negative or the content length exceeds the length of the
3324 supplied buffer. (CVE-2002-0659)
3325 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3327 *) Assertions for various potential buffer overflows, not known to
3329 [Ben Laurie (CHATS)]
3331 *) Various temporary buffers to hold ASCII versions of integers were
3332 too small for 64 bit platforms. (CVE-2002-0655)
3333 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3335 *) Remote buffer overflow in SSL3 protocol - an attacker could
3336 supply an oversized session ID to a client. (CVE-2002-0656)
3337 [Ben Laurie (CHATS)]
3339 *) Remote buffer overflow in SSL2 protocol - an attacker could
3340 supply an oversized client master key. (CVE-2002-0656)
3341 [Ben Laurie (CHATS)]
3343 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3345 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3346 encoded as NULL) with id-dsa-with-sha1.
3347 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3349 *) Check various X509_...() return values in apps/req.c.
3350 [Nils Larsch <nla@trustcenter.de>]
3352 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3353 an end-of-file condition would erronously be flagged, when the CRLF
3354 was just at the end of a processed block. The bug was discovered when
3355 processing data through a buffering memory BIO handing the data to a
3356 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3357 <ptsekov@syntrex.com> and Nedelcho Stanev.
3360 *) Implement a countermeasure against a vulnerability recently found
3361 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3362 before application data chunks to avoid the use of known IVs
3363 with data potentially chosen by the attacker.
3366 *) Fix length checks in ssl3_get_client_hello().
3369 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3370 to prevent ssl3_read_internal() from incorrectly assuming that
3371 ssl3_read_bytes() found application data while handshake
3372 processing was enabled when in fact s->s3->in_read_app_data was
3373 merely automatically cleared during the initial handshake.
3374 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3376 *) Fix object definitions for Private and Enterprise: they were not
3377 recognized in their shortname (=lowercase) representation. Extend
3378 obj_dat.pl to issue an error when using undefined keywords instead
3379 of silently ignoring the problem (Svenning Sorensen
3380 <sss@sss.dnsalias.net>).
3383 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3384 generators, i.e. generators other than 2 and 5. (Previously, the
3385 code did not properly initialise the 'add' and 'rem' values to
3386 BN_generate_prime().)
3388 In the new general case, we do not insist that 'generator' is
3389 actually a primitive root: This requirement is rather pointless;
3390 a generator of the order-q subgroup is just as good, if not
3394 *) Map new X509 verification errors to alerts. Discovered and submitted by
3395 Tom Wu <tom@arcot.com>.
3398 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3399 returning non-zero before the data has been completely received
3400 when using non-blocking I/O.
3401 [Bodo Moeller; problem pointed out by John Hughes]
3403 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3404 [Ben Laurie, Lutz Jaenicke]
3406 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3407 Yoram Zahavi <YoramZ@gilian.com>).
3410 *) Add information about CygWin 1.3 and on, and preserve proper
3411 configuration for the versions before that.
3412 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3414 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3415 check whether we deal with a copy of a session and do not delete from
3416 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3417 <izhar@checkpoint.com>.
3420 *) Do not store session data into the internal session cache, if it
3421 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3422 flag is set). Proposed by Aslam <aslam@funk.com>.
3425 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3429 *) [In 0.9.6d-engine release:]
3430 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3431 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3433 *) Add the configuration target linux-s390x.
3434 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3436 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3437 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3438 variable as an indication that a ClientHello message has been
3439 received. As the flag value will be lost between multiple
3440 invocations of ssl3_accept when using non-blocking I/O, the
3441 function may not be aware that a handshake has actually taken
3442 place, thus preventing a new session from being added to the
3445 To avoid this problem, we now set s->new_session to 2 instead of
3446 using a local variable.
3447 [Lutz Jaenicke, Bodo Moeller]
3449 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3450 if the SSL_R_LENGTH_MISMATCH error is detected.
3451 [Geoff Thorpe, Bodo Moeller]
3453 *) New 'shared_ldflag' column in Configure platform table.
3456 *) Fix EVP_CIPHER_mode macro.
3457 ["Dan S. Camper" <dan@bti.net>]
3459 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3460 type, we must throw them away by setting rr->length to 0.
3461 [D P Chang <dpc@qualys.com>]
3463 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3465 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3466 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3467 worked incorrectly for those cases where range = 10..._2 and
3468 3*range is two bits longer than range.)
3471 *) Only add signing time to PKCS7 structures if it is not already
3475 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3476 OBJ_ld_ce should be OBJ_id_ce.
3477 Also some ip-pda OIDs in crypto/objects/objects.txt were
3478 incorrect (cf. RFC 3039).
3479 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3481 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3482 returns early because it has nothing to do.
3483 [Andy Schneider <andy.schneider@bjss.co.uk>]
3485 *) [In 0.9.6c-engine release:]
3486 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3487 [Andy Schneider <andy.schneider@bjss.co.uk>]
3489 *) [In 0.9.6c-engine release:]
3490 Add support for Cryptographic Appliance's keyserver technology.
3491 (Use engine 'keyclient')
3492 [Cryptographic Appliances and Geoff Thorpe]
3494 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3495 is called via tools/c89.sh because arguments have to be
3496 rearranged (all '-L' options must appear before the first object
3498 [Richard Shapiro <rshapiro@abinitio.com>]
3500 *) [In 0.9.6c-engine release:]
3501 Add support for Broadcom crypto accelerator cards, backported
3503 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3505 *) [In 0.9.6c-engine release:]
3506 Add support for SureWare crypto accelerator cards from
3507 Baltimore Technologies. (Use engine 'sureware')
3508 [Baltimore Technologies and Mark Cox]
3510 *) [In 0.9.6c-engine release:]
3511 Add support for crypto accelerator cards from Accelerated
3512 Encryption Processing, www.aep.ie. (Use engine 'aep')
3513 [AEP Inc. and Mark Cox]
3515 *) Add a configuration entry for gcc on UnixWare.
3516 [Gary Benson <gbenson@redhat.com>]
3518 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3519 messages are stored in a single piece (fixed-length part and
3520 variable-length part combined) and fix various bugs found on the way.
3523 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3524 instead. BIO_gethostbyname() does not know what timeouts are
3525 appropriate, so entries would stay in cache even when they have
3527 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3529 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3530 faced with a pathologically small ClientHello fragment that does
3531 not contain client_version: Instead of aborting with an error,
3532 simply choose the highest available protocol version (i.e.,
3533 TLS 1.0 unless it is disabled). In practice, ClientHello
3534 messages are never sent like this, but this change gives us
3535 strictly correct behaviour at least for TLS.
3538 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3539 never resets s->method to s->ctx->method when called from within
3540 one of the SSL handshake functions.
3541 [Bodo Moeller; problem pointed out by Niko Baric]
3543 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3544 (sent using the client's version number) if client_version is
3545 smaller than the protocol version in use. Also change
3546 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3547 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3548 the client will at least see that alert.
3551 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3555 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3556 client receives HelloRequest while in a handshake.
3557 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3559 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3560 should end in 'break', not 'goto end' which circuments various
3561 cleanups done in state SSL_ST_OK. But session related stuff
3562 must be disabled for SSL_ST_OK in the case that we just sent a
3565 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3566 before just sending a HelloRequest.
3567 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3569 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3570 reveal whether illegal block cipher padding was found or a MAC
3571 verification error occured. (Neither SSLerr() codes nor alerts
3572 are directly visible to potential attackers, but the information
3573 may leak via logfiles.)
3575 Similar changes are not required for the SSL 2.0 implementation
3576 because the number of padding bytes is sent in clear for SSL 2.0,
3577 and the extra bytes are just ignored. However ssl/s2_pkt.c
3578 failed to verify that the purported number of padding bytes is in
3582 *) Add OpenUNIX-8 support including shared libraries
3583 (Boyd Lynn Gerber <gerberb@zenez.com>).
3586 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3587 'wristwatch attack' using huge encoding parameters (cf.
3588 James H. Manger's CRYPTO 2001 paper). Note that the
3589 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3590 encoding parameters and hence was not vulnerable.
3593 *) BN_sqr() bug fix.
3594 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3596 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3597 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3598 followed by modular reduction.
3599 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3601 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3602 equivalent based on BN_pseudo_rand() instead of BN_rand().
3605 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3606 This function was broken, as the check for a new client hello message
3607 to handle SGC did not allow these large messages.
3608 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3611 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3614 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3615 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3618 *) Rework the configuration and shared library support for Tru64 Unix.
3619 The configuration part makes use of modern compiler features and
3620 still retains old compiler behavior for those that run older versions
3621 of the OS. The shared library support part includes a variant that
3622 uses the RPATH feature, and is available through the special
3623 configuration target "alpha-cc-rpath", which will never be selected
3625 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3627 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3628 with the same message size as in ssl3_get_certificate_request().
3629 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3630 messages might inadvertently be reject as too long.
3631 [Petr Lampa <lampa@fee.vutbr.cz>]
3633 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3636 *) Modified SSL library such that the verify_callback that has been set
3637 specificly for an SSL object with SSL_set_verify() is actually being
3638 used. Before the change, a verify_callback set with this function was
3639 ignored and the verify_callback() set in the SSL_CTX at the time of
3640 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3641 to allow the necessary settings.
3644 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3645 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3646 done automatically (in contradiction to the requirements of the C
3647 standard). This made problems when used from OpenSSH.
3650 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3651 dh->length and always used
3653 BN_rand_range(priv_key, dh->p).
3655 BN_rand_range() is not necessary for Diffie-Hellman, and this
3656 specific range makes Diffie-Hellman unnecessarily inefficient if
3657 dh->length (recommended exponent length) is much smaller than the
3658 length of dh->p. We could use BN_rand_range() if the order of
3659 the subgroup was stored in the DH structure, but we only have
3664 BN_rand(priv_key, l, ...)
3666 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3672 RSA_eay_public_encrypt
3673 RSA_eay_private_decrypt
3674 RSA_eay_private_encrypt (signing)
3675 RSA_eay_public_decrypt (signature verification)
3677 (default implementations for RSA_public_encrypt,
3678 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3679 always reject numbers >= n.
3682 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3683 to synchronize access to 'locking_thread'. This is necessary on
3684 systems where access to 'locking_thread' (an 'unsigned long'
3685 variable) is not atomic.
3688 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3689 *before* setting the 'crypto_lock_rand' flag. The previous code had
3690 a race condition if 0 is a valid thread ID.
3691 [Travis Vitek <vitek@roguewave.com>]
3693 *) Add support for shared libraries under Irix.
3694 [Albert Chin-A-Young <china@thewrittenword.com>]
3696 *) Add configuration option to build on Linux on both big-endian and
3698 [Ralf Baechle <ralf@uni-koblenz.de>]
3700 *) Add the possibility to create shared libraries on HP-UX.
3703 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3705 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3706 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3707 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3708 PRNG state recovery was possible based on the output of
3709 one PRNG request appropriately sized to gain knowledge on
3710 'md' followed by enough consecutive 1-byte PRNG requests
3711 to traverse all of 'state'.
3713 1. When updating 'md_local' (the current thread's copy of 'md')
3714 during PRNG output generation, hash all of the previous
3715 'md_local' value, not just the half used for PRNG output.
3717 2. Make the number of bytes from 'state' included into the hash
3718 independent from the number of PRNG bytes requested.
3720 The first measure alone would be sufficient to avoid
3721 Markku-Juhani's attack. (Actually it had never occurred
3722 to me that the half of 'md_local' used for chaining was the
3723 half from which PRNG output bytes were taken -- I had always
3724 assumed that the secret half would be used.) The second
3725 measure makes sure that additional data from 'state' is never
3726 mixed into 'md_local' in small portions; this heuristically
3727 further strengthens the PRNG.
3730 *) Fix crypto/bn/asm/mips3.s.
3733 *) When only the key is given to "enc", the IV is undefined. Print out
3734 an error message in this case.
3737 *) Handle special case when X509_NAME is empty in X509 printing routines.
3740 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3741 positive and less than q.
3744 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3745 used: it isn't thread safe and the add_lock_callback should handle
3747 [Paul Rose <Paul.Rose@bridge.com>]
3749 *) Verify that incoming data obeys the block size in
3750 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3754 [Ulf Möller, Bodo Möller]
3756 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3757 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3758 when fixing the server behaviour for backwards-compatible 'client
3759 hello' messages. (Note that the attack is impractical against
3760 SSL 3.0 and TLS 1.0 anyway because length and version checking
3761 means that the probability of guessing a valid ciphertext is
3762 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3765 Before 0.9.5, the countermeasure (hide the error by generating a
3766 random 'decryption result') did not work properly because
3767 ERR_clear_error() was missing, meaning that SSL_get_error() would
3768 detect the supposedly ignored error.
3770 Both problems are now fixed.
3773 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3774 (previously it was 1024).
3777 *) Fix for compatibility mode trust settings: ignore trust settings
3778 unless some valid trust or reject settings are present.
3781 *) Fix for blowfish EVP: its a variable length cipher.
3784 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3785 parameters in DSA public key structures and return an error in the
3786 DSA routines if parameters are absent.
3789 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3790 in the current directory if neither $RANDFILE nor $HOME was set.
3791 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3792 caused some confusion to Windows users who haven't defined $HOME.
3793 Thus RAND_file_name() is changed again: e_os.h can define a
3794 DEFAULT_HOME, which will be used if $HOME is not set.
3795 For Windows, we use "C:"; on other platforms, we still require
3796 environment variables.
3798 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3799 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3800 having multiple threads call RAND_poll() concurrently.
3803 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3804 combination of a flag and a thread ID variable.
3805 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3806 flag), *other* threads can enter ssleay_add_bytes without obeying
3807 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3808 that they do not hold after the first thread unsets add_do_not_lock).
3811 *) Change bctest again: '-x' expressions are not available in all
3815 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3817 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3818 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3820 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3821 the default extension for executables, if any. Also, make the perl
3822 scripts that use symlink() to test if it really exists and use "cp"
3823 if it doesn't. All this made OpenSSL compilable and installable in
3827 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3828 If SEQUENCE is length is indefinite just set c->slen to the total
3829 amount of data available.
3830 [Steve Henson, reported by shige@FreeBSD.org]
3831 [This change does not apply to 0.9.7.]
3833 *) Change bctest to avoid here-documents inside command substitution
3834 (workaround for FreeBSD /bin/sh bug).
3835 For compatibility with Ultrix, avoid shell functions (introduced
3836 in the bctest version that searches along $PATH).
3839 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3840 with des_encrypt() defined on some operating systems, like Solaris
3844 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3845 On the Importance of Eliminating Errors in Cryptographic
3846 Computations, J. Cryptology 14 (2001) 2, 101-119,
3847 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3850 *) MIPS assembler BIGNUM division bug fix.
3853 *) Disabled incorrect Alpha assembler code.
3856 *) Fix PKCS#7 decode routines so they correctly update the length
3857 after reading an EOC for the EXPLICIT tag.
3859 [This change does not apply to 0.9.7.]
3861 *) Fix bug in PKCS#12 key generation routines. This was triggered
3862 if a 3DES key was generated with a 0 initial byte. Include
3863 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3864 (but broken) behaviour.
3867 *) Enhance bctest to search for a working bc along $PATH and print
3869 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3871 *) Fix memory leaks in err.c: free err_data string if necessary;
3872 don't write to the wrong index in ERR_set_error_data.
3875 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3879 *) Replace rdtsc with _emit statements for VC++ version 5.
3880 [Jeremy Cooper <jeremy@baymoo.org>]
3882 *) Make it possible to reuse SSLv2 sessions.
3885 *) In copy_email() check for >= 0 as a return value for
3886 X509_NAME_get_index_by_NID() since 0 is a valid index.
3887 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3889 *) Avoid coredump with unsupported or invalid public keys by checking if
3890 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3891 PKCS7_verify() fails with non detached data.
3894 *) Don't use getenv in library functions when run as setuid/setgid.
3895 New function OPENSSL_issetugid().
3898 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3899 due to incorrect handling of multi-threading:
3901 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3903 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3905 3. Count how many times MemCheck_off() has been called so that
3906 nested use can be treated correctly. This also avoids
3907 inband-signalling in the previous code (which relied on the
3908 assumption that thread ID 0 is impossible).
3911 *) Add "-rand" option also to s_client and s_server.
3914 *) Fix CPU detection on Irix 6.x.
3915 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3916 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3918 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3921 [This change does not apply to 0.9.7.]
3923 *) Use the cached encoding of an X509_NAME structure rather than
3924 copying it. This is apparently the reason for the libsafe "errors"
3925 but the code is actually correct.
3928 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3929 Bleichenbacher's DSA attack.
3930 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3931 to be set and top=0 forces the highest bit to be set; top=-1 is new
3932 and leaves the highest bit random.
3933 [Ulf Moeller, Bodo Moeller]
3935 *) In the NCONF_...-based implementations for CONF_... queries
3936 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3937 a temporary CONF structure with the data component set to NULL
3938 (which gives segmentation faults in lh_retrieve).
3939 Instead, use NULL for the CONF pointer in CONF_get_string and
3940 CONF_get_number (which may use environment variables) and directly
3941 return NULL from CONF_get_section.
3944 *) Fix potential buffer overrun for EBCDIC.
3947 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3948 keyUsage if basicConstraints absent for a CA.
3951 *) Make SMIME_write_PKCS7() write mail header values with a format that
3952 is more generally accepted (no spaces before the semicolon), since
3953 some programs can't parse those values properly otherwise. Also make
3954 sure BIO's that break lines after each write do not create invalid
3958 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3959 macros previously used would not encode an empty SEQUENCE OF
3960 and break the signature.
3962 [This change does not apply to 0.9.7.]
3964 *) Zero the premaster secret after deriving the master secret in
3968 *) Add some EVP_add_digest_alias registrations (as found in
3969 OpenSSL_add_all_digests()) to SSL_library_init()
3970 aka OpenSSL_add_ssl_algorithms(). This provides improved
3971 compatibility with peers using X.509 certificates
3972 with unconventional AlgorithmIdentifier OIDs.
3975 *) Fix for Irix with NO_ASM.
3976 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3978 *) ./config script fixes.
3979 [Ulf Moeller, Richard Levitte]
3981 *) Fix 'openssl passwd -1'.
3984 *) Change PKCS12_key_gen_asc() so it can cope with non null
3985 terminated strings whose length is passed in the passlen
3986 parameter, for example from PEM callbacks. This was done
3987 by adding an extra length parameter to asc2uni().
3988 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3990 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3991 call failed, free the DSA structure.
3994 *) Fix to uni2asc() to cope with zero length Unicode strings.
3995 These are present in some PKCS#12 files.
3998 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3999 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4000 when writing a 32767 byte record.
4001 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4003 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4004 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4006 (RSA objects have a reference count access to which is protected
4007 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4008 so they are meant to be shared between threads.)
4009 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4010 "Reddie, Steven" <Steven.Reddie@ca.com>]
4012 *) Fix a deadlock in CRYPTO_mem_leaks().
4015 *) Use better test patterns in bntest.
4018 *) rand_win.c fix for Borland C.
4021 *) BN_rshift bugfix for n == 0.
4024 *) Add a 'bctest' script that checks for some known 'bc' bugs
4025 so that 'make test' does not abort just because 'bc' is broken.
4028 *) Store verify_result within SSL_SESSION also for client side to
4029 avoid potential security hole. (Re-used sessions on the client side
4030 always resulted in verify_result==X509_V_OK, not using the original
4031 result of the server certificate verification.)
4034 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4035 SSL3_RT_APPLICATION_DATA, return 0.
4036 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4040 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4041 releases, have been re-implemented by renaming the previous
4042 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4043 and ssl3_read_internal, respectively, and adding 'peek' parameters
4044 to them. The new ssl[23]_{read,peek} functions are calls to
4045 ssl[23]_read_internal with the 'peek' flag set appropriately.
4046 A 'peek' parameter has also been added to ssl3_read_bytes, which
4047 does the actual work for ssl3_read_internal.
4050 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4051 the method-specific "init()" handler. Also clean up ex_data after
4052 calling the method-specific "finish()" handler. Previously, this was
4053 happening the other way round.
4056 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4057 The previous value, 12, was not always sufficient for BN_mod_exp().
4060 *) Make sure that shared libraries get the internal name engine with
4061 the full version number and not just 0. This should mark the
4062 shared libraries as not backward compatible. Of course, this should
4063 be changed again when we can guarantee backward binary compatibility.
4066 *) Fix typo in get_cert_by_subject() in by_dir.c
4067 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4069 *) Rework the system to generate shared libraries:
4071 - Make note of the expected extension for the shared libraries and
4072 if there is a need for symbolic links from for example libcrypto.so.0
4073 to libcrypto.so.0.9.7. There is extended info in Configure for
4076 - Make as few rebuilds of the shared libraries as possible.
4078 - Still avoid linking the OpenSSL programs with the shared libraries.
4080 - When installing, install the shared libraries separately from the
4084 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4086 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4087 and not in SSL_clear because the latter is also used by the
4088 accept/connect functions; previously, the settings made by
4089 SSL_set_read_ahead would be lost during the handshake.
4090 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4092 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4093 Previously, it would create entries for disableed algorithms no
4097 *) Added several new manual pages for SSL_* function.
4100 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4102 *) In ssl23_get_client_hello, generate an error message when faced
4103 with an initial SSL 3.0/TLS record that is too small to contain the
4104 first two bytes of the ClientHello message, i.e. client_version.
4105 (Note that this is a pathologic case that probably has never happened
4106 in real life.) The previous approach was to use the version number
4107 from the record header as a substitute; but our protocol choice
4108 should not depend on that one because it is not authenticated
4109 by the Finished messages.
4112 *) More robust randomness gathering functions for Windows.
4113 [Jeffrey Altman <jaltman@columbia.edu>]
4115 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4116 not set then we don't setup the error code for issuer check errors
4117 to avoid possibly overwriting other errors which the callback does
4118 handle. If an application does set the flag then we assume it knows
4119 what it is doing and can handle the new informational codes
4123 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4124 a general "ANY" type, as such it should be able to decode anything
4125 including tagged types. However it didn't check the class so it would
4126 wrongly interpret tagged types in the same way as their universal
4127 counterpart and unknown types were just rejected. Changed so that the
4128 tagged and unknown types are handled in the same way as a SEQUENCE:
4129 that is the encoding is stored intact. There is also a new type
4130 "V_ASN1_OTHER" which is used when the class is not universal, in this
4131 case we have no idea what the actual type is so we just lump them all
4135 *) On VMS, stdout may very well lead to a file that is written to
4136 in a record-oriented fashion. That means that every write() will
4137 write a separate record, which will be read separately by the
4138 programs trying to read from it. This can be very confusing.
4140 The solution is to put a BIO filter in the way that will buffer
4141 text until a linefeed is reached, and then write everything a
4142 line at a time, so every record written will be an actual line,
4143 not chunks of lines and not (usually doesn't happen, but I've
4144 seen it once) several lines in one record. BIO_f_linebuffer() is
4147 Currently, it's a VMS-only method, because that's where it has
4148 been tested well enough.
4151 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4152 it can return incorrect results.
4153 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4154 but it was in 0.9.6-beta[12].)
4157 *) Disable the check for content being present when verifying detached
4158 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4159 include zero length content when signing messages.
4162 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4163 BIO_ctrl (for BIO pairs).
4166 *) Add DSO method for VMS.
4169 *) Bug fix: Montgomery multiplication could produce results with the
4173 *) Add RPM specification openssl.spec and modify it to build three
4174 packages. The default package contains applications, application
4175 documentation and run-time libraries. The devel package contains
4176 include files, static libraries and function documentation. The
4177 doc package contains the contents of the doc directory. The original
4178 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4181 *) Add a large number of documentation files for many SSL routines.
4182 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4184 *) Add a configuration entry for Sony News 4.
4185 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4187 *) Don't set the two most significant bits to one when generating a
4188 random number < q in the DSA library.
4191 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4192 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4193 the underlying transport is blocking) if a handshake took place.
4194 (The default behaviour is needed by applications such as s_client
4195 and s_server that use select() to determine when to use SSL_read;
4196 but for applications that know in advance when to expect data, it
4197 just makes things more complicated.)
4200 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4204 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4205 work better on such systems.
4206 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4208 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4209 Update PKCS12_parse() so it copies the friendlyName and the
4210 keyid to the certificates aux info.
4213 *) Fix bug in PKCS7_verify() which caused an infinite loop
4214 if there was more than one signature.
4215 [Sven Uszpelkat <su@celocom.de>]
4217 *) Major change in util/mkdef.pl to include extra information
4218 about each symbol, as well as presentig variables as well
4219 as functions. This change means that there's n more need
4220 to rebuild the .num files when some algorithms are excluded.
4223 *) Allow the verify time to be set by an application,
4224 rather than always using the current time.
4227 *) Phase 2 verify code reorganisation. The certificate
4228 verify code now looks up an issuer certificate by a
4229 number of criteria: subject name, authority key id
4230 and key usage. It also verifies self signed certificates
4231 by the same criteria. The main comparison function is
4232 X509_check_issued() which performs these checks.
4234 Lot of changes were necessary in order to support this
4235 without completely rewriting the lookup code.
4237 Authority and subject key identifier are now cached.
4239 The LHASH 'certs' is X509_STORE has now been replaced
4240 by a STACK_OF(X509_OBJECT). This is mainly because an
4241 LHASH can't store or retrieve multiple objects with
4242 the same hash value.
4244 As a result various functions (which were all internal
4245 use only) have changed to handle the new X509_STORE
4246 structure. This will break anything that messed round
4247 with X509_STORE internally.
4249 The functions X509_STORE_add_cert() now checks for an
4250 exact match, rather than just subject name.
4252 The X509_STORE API doesn't directly support the retrieval
4253 of multiple certificates matching a given criteria, however
4254 this can be worked round by performing a lookup first
4255 (which will fill the cache with candidate certificates)
4256 and then examining the cache for matches. This is probably
4257 the best we can do without throwing out X509_LOOKUP
4258 entirely (maybe later...).
4260 The X509_VERIFY_CTX structure has been enhanced considerably.
4262 All certificate lookup operations now go via a get_issuer()
4263 callback. Although this currently uses an X509_STORE it
4264 can be replaced by custom lookups. This is a simple way
4265 to bypass the X509_STORE hackery necessary to make this
4266 work and makes it possible to use more efficient techniques
4267 in future. A very simple version which uses a simple
4268 STACK for its trusted certificate store is also provided
4269 using X509_STORE_CTX_trusted_stack().
4271 The verify_cb() and verify() callbacks now have equivalents
4272 in the X509_STORE_CTX structure.
4274 X509_STORE_CTX also has a 'flags' field which can be used
4275 to customise the verify behaviour.
4278 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4279 excludes S/MIME capabilities.
4282 *) When a certificate request is read in keep a copy of the
4283 original encoding of the signed data and use it when outputing
4284 again. Signatures then use the original encoding rather than
4285 a decoded, encoded version which may cause problems if the
4286 request is improperly encoded.
4289 *) For consistency with other BIO_puts implementations, call
4290 buffer_write(b, ...) directly in buffer_puts instead of calling
4293 In BIO_puts, increment b->num_write as in BIO_write.
4294 [Peter.Sylvester@EdelWeb.fr]
4296 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4297 BN_zero, we may not return a BIGNUM with an array consisting of
4301 *) Avoid calling abort() from within the library when problems are
4302 detected, except if preprocessor symbols have been defined
4303 (such as REF_CHECK, BN_DEBUG etc.).
4306 *) New openssl application 'rsautl'. This utility can be
4307 used for low level RSA operations. DER public key
4308 BIO/fp routines also added.
4311 *) New Configure entry and patches for compiling on QNX 4.
4312 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4314 *) A demo state-machine implementation was sponsored by
4315 Nuron (http://www.nuron.com/) and is now available in
4316 demos/state_machine.
4319 *) New options added to the 'dgst' utility for signature
4320 generation and verification.
4323 *) Unrecognized PKCS#7 content types are now handled via a
4324 catch all ASN1_TYPE structure. This allows unsupported
4325 types to be stored as a "blob" and an application can
4326 encode and decode it manually.
4329 *) Fix various signed/unsigned issues to make a_strex.c
4331 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4333 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4334 length if passed a buffer. ASN1_INTEGER_to_BN failed
4335 if passed a NULL BN and its argument was negative.
4336 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4338 *) Modification to PKCS#7 encoding routines to output definite
4339 length encoding. Since currently the whole structures are in
4340 memory there's not real point in using indefinite length
4341 constructed encoding. However if OpenSSL is compiled with
4342 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4345 *) Added BIO_vprintf() and BIO_vsnprintf().
4348 *) Added more prefixes to parse for in the the strings written
4349 through a logging bio, to cover all the levels that are available
4350 through syslog. The prefixes are now:
4352 PANIC, EMERG, EMR => LOG_EMERG
4353 ALERT, ALR => LOG_ALERT
4354 CRIT, CRI => LOG_CRIT
4355 ERROR, ERR => LOG_ERR
4356 WARNING, WARN, WAR => LOG_WARNING
4357 NOTICE, NOTE, NOT => LOG_NOTICE
4358 INFO, INF => LOG_INFO
4359 DEBUG, DBG => LOG_DEBUG
4361 and as before, if none of those prefixes are present at the
4362 beginning of the string, LOG_ERR is chosen.
4364 On Win32, the LOG_* levels are mapped according to this:
4366 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4367 LOG_WARNING => EVENTLOG_WARNING_TYPE
4368 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4372 *) Made it possible to reconfigure with just the configuration
4373 argument "reconf" or "reconfigure". The command line arguments
4374 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4375 and are retrieved from there when reconfiguring.
4379 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4381 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4384 *) The obj_dat.pl script was messing up the sorting of object
4385 names. The reason was that it compared the quoted version
4386 of strings as a result "OCSP" > "OCSP Signing" because
4387 " > SPACE. Changed script to store unquoted versions of
4388 names and add quotes on output. It was also omitting some
4389 names from the lookup table if they were given a default
4390 value (that is if SN is missing it is given the same
4391 value as LN and vice versa), these are now added on the
4392 grounds that if an object has a name we should be able to
4393 look it up. Finally added warning output when duplicate
4394 short or long names are found.
4397 *) Changes needed for Tandem NSK.
4398 [Scott Uroff <scott@xypro.com>]
4400 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4401 RSA_padding_check_SSLv23(), special padding was never detected
4402 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4403 version rollback attacks was not effective.
4405 In s23_clnt.c, don't use special rollback-attack detection padding
4406 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4407 client; similarly, in s23_srvr.c, don't do the rollback check if
4408 SSL 2.0 is the only protocol enabled in the server.
4411 *) Make it possible to get hexdumps of unprintable data with 'openssl
4412 asn1parse'. By implication, the functions ASN1_parse_dump() and
4413 BIO_dump_indent() are added.
4416 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4417 these print out strings and name structures based on various
4418 flags including RFC2253 support and proper handling of
4419 multibyte characters. Added options to the 'x509' utility
4420 to allow the various flags to be set.
4423 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4424 Also change the functions X509_cmp_current_time() and
4425 X509_gmtime_adj() work with an ASN1_TIME structure,
4426 this will enable certificates using GeneralizedTime in validity
4427 dates to be checked.
4430 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4431 negative public key encodings) on by default,
4432 NO_NEG_PUBKEY_BUG can be set to disable it.
4435 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4436 content octets. An i2c_ASN1_OBJECT is unnecessary because
4437 the encoding can be trivially obtained from the structure.
4440 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4441 not read locks (CRYPTO_r_[un]lock).
4444 *) A first attempt at creating official support for shared
4445 libraries through configuration. I've kept it so the
4446 default is static libraries only, and the OpenSSL programs
4447 are always statically linked for now, but there are
4448 preparations for dynamic linking in place.
4449 This has been tested on Linux and Tru64.
4452 *) Randomness polling function for Win9x, as described in:
4453 Peter Gutmann, Software Generation of Practically Strong
4457 *) Fix so PRNG is seeded in req if using an already existing
4461 *) New options to smime application. -inform and -outform
4462 allow alternative formats for the S/MIME message including
4463 PEM and DER. The -content option allows the content to be
4464 specified separately. This should allow things like Netscape
4465 form signing output easier to verify.
4468 *) Fix the ASN1 encoding of tags using the 'long form'.
4471 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4472 STRING types. These convert content octets to and from the
4473 underlying type. The actual tag and length octets are
4474 already assumed to have been read in and checked. These
4475 are needed because all other string types have virtually
4476 identical handling apart from the tag. By having versions
4477 of the ASN1 functions that just operate on content octets
4478 IMPLICIT tagging can be handled properly. It also allows
4479 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4480 and ASN1_INTEGER are identical apart from the tag.
4483 *) Change the handling of OID objects as follows:
4485 - New object identifiers are inserted in objects.txt, following
4486 the syntax given in objects.README.
4487 - objects.pl is used to process obj_mac.num and create a new
4489 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4492 This is currently kind of a hack, and the perl code in objects.pl
4493 isn't very elegant, but it works as I intended. The simplest way
4494 to check that it worked correctly is to look in obj_dat.h and
4495 check the array nid_objs and make sure the objects haven't moved
4496 around (this is important!). Additions are OK, as well as
4497 consistent name changes.
4500 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4503 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4504 The given file adds to whatever has already been seeded into the
4505 random pool through the RANDFILE configuration file option or
4506 environment variable, or the default random state file.
4509 *) mkstack.pl now sorts each macro group into lexical order.
4510 Previously the output order depended on the order the files
4511 appeared in the directory, resulting in needless rewriting
4515 *) Patches to make OpenSSL compile under Win32 again. Mostly
4516 work arounds for the VC++ problem that it treats func() as
4517 func(void). Also stripped out the parts of mkdef.pl that
4518 added extra typesafe functions: these no longer exist.
4521 *) Reorganisation of the stack code. The macros are now all
4522 collected in safestack.h . Each macro is defined in terms of
4523 a "stack macro" of the form SKM_<name>(type, a, b). The
4524 DEBUG_SAFESTACK is now handled in terms of function casts,
4525 this has the advantage of retaining type safety without the
4526 use of additional functions. If DEBUG_SAFESTACK is not defined
4527 then the non typesafe macros are used instead. Also modified the
4528 mkstack.pl script to handle the new form. Needs testing to see
4529 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4530 the default if no major problems. Similar behaviour for ASN1_SET_OF
4531 and PKCS12_STACK_OF.
4534 *) When some versions of IIS use the 'NET' form of private key the
4535 key derivation algorithm is different. Normally MD5(password) is
4536 used as a 128 bit RC4 key. In the modified case
4537 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4538 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4539 as the old Netscape_RSA functions except they have an additional
4540 'sgckey' parameter which uses the modified algorithm. Also added
4541 an -sgckey command line option to the rsa utility. Thanks to
4542 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4543 algorithm to openssl-dev.
4546 *) The evp_local.h macros were using 'c.##kname' which resulted in
4547 invalid expansion on some systems (SCO 5.0.5 for example).
4548 Corrected to 'c.kname'.
4549 [Phillip Porch <root@theporch.com>]
4551 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4552 a STACK of email addresses from a certificate or request, these look
4553 in the subject name and the subject alternative name extensions and
4554 omit any duplicate addresses.
4557 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4558 This makes DSA verification about 2 % faster.
4561 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4562 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4563 plus overhead for 1024 bit moduli).
4564 This makes exponentiations about 0.5 % faster for 1024 bit
4565 exponents (as measured by "openssl speed rsa2048").
4568 *) Rename memory handling macros to avoid conflicts with other
4570 Malloc => OPENSSL_malloc
4571 Malloc_locked => OPENSSL_malloc_locked
4572 Realloc => OPENSSL_realloc
4573 Free => OPENSSL_free
4576 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4577 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4580 *) CygWin32 support.
4581 [John Jarvie <jjarvie@newsguy.com>]
4583 *) The type-safe stack code has been rejigged. It is now only compiled
4584 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4585 by default all type-specific stack functions are "#define"d back to
4586 standard stack functions. This results in more streamlined output
4587 but retains the type-safety checking possibilities of the original
4591 *) The STACK code has been cleaned up, and certain type declarations
4592 that didn't make a lot of sense have been brought in line. This has
4593 also involved a cleanup of sorts in safestack.h to more correctly
4594 map type-safe stack functions onto their plain stack counterparts.
4595 This work has also resulted in a variety of "const"ifications of
4596 lots of the code, especially "_cmp" operations which should normally
4597 be prototyped with "const" parameters anyway.
4600 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4601 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4602 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4603 where all of 'md' is used each time the PRNG is used, but 'state'
4604 is used only indexed by a cyclic counter. As entropy may not be
4605 well distributed from the beginning, 'md' is important as a
4606 chaining variable. However, the output function chains only half
4607 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4608 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4609 in all of 'state' being rewritten, with the new values depending
4610 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4613 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4614 the handshake is continued after ssl_verify_cert_chain();
4615 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4616 can lead to 'unexplainable' connection aborts later.
4617 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4619 *) Major EVP API cipher revision.
4620 Add hooks for extra EVP features. This allows various cipher
4621 parameters to be set in the EVP interface. Support added for variable
4622 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4623 setting of RC2 and RC5 parameters.
4625 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4628 Remove lots of duplicated code from the EVP library. For example *every*
4629 cipher init() function handles the 'iv' in the same way according to the
4630 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4631 for CFB and OFB modes they zero ctx->num.
4633 New functionality allows removal of S/MIME code RC2 hack.
4635 Most of the routines have the same form and so can be declared in terms
4638 By shifting this to the top level EVP_CipherInit() it can be removed from
4639 all individual ciphers. If the cipher wants to handle IVs or keys
4640 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4643 Change lots of functions like EVP_EncryptUpdate() to now return a
4644 value: although software versions of the algorithms cannot fail
4645 any installed hardware versions can.
4648 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4649 this option is set, tolerate broken clients that send the negotiated
4650 protocol version number instead of the requested protocol version
4654 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4655 i.e. non-zero for export ciphersuites, zero otherwise.
4656 Previous versions had this flag inverted, inconsistent with
4657 rsa_tmp_cb (..._TMP_RSA_CB).
4658 [Bodo Moeller; problem reported by Amit Chopra]
4660 *) Add missing DSA library text string. Work around for some IIS
4661 key files with invalid SEQUENCE encoding.
4664 *) Add a document (doc/standards.txt) that list all kinds of standards
4665 and so on that are implemented in OpenSSL.
4668 *) Enhance c_rehash script. Old version would mishandle certificates
4669 with the same subject name hash and wouldn't handle CRLs at all.
4670 Added -fingerprint option to crl utility, to support new c_rehash
4674 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4677 *) Fix for SSL server purpose checking. Server checking was
4678 rejecting certificates which had extended key usage present
4679 but no ssl client purpose.
4680 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4682 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4683 is a little unclear about how a blank password is handled.
4684 Since the password in encoded as a BMPString with terminating
4685 double NULL a zero length password would end up as just the
4686 double NULL. However no password at all is different and is
4687 handled differently in the PKCS#12 key generation code. NS
4688 treats a blank password as zero length. MSIE treats it as no
4689 password on export: but it will try both on import. We now do
4690 the same: PKCS12_parse() tries zero length and no password if
4691 the password is set to "" or NULL (NULL is now a valid password:
4692 it wasn't before) as does the pkcs12 application.
4695 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4696 perror when PEM_read_bio_X509_REQ fails, the error message must
4697 be obtained from the error queue.
4700 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4701 it in ERR_remove_state if appropriate, and change ERR_get_state
4702 accordingly to avoid race conditions (this is necessary because
4703 thread_hash is no longer constant once set).
4706 *) Bugfix for linux-elf makefile.one.
4709 *) RSA_get_default_method() will now cause a default
4710 RSA_METHOD to be chosen if one doesn't exist already.
4711 Previously this was only set during a call to RSA_new()
4712 or RSA_new_method(NULL) meaning it was possible for
4713 RSA_get_default_method() to return NULL.
4716 *) Added native name translation to the existing DSO code
4717 that will convert (if the flag to do so is set) filenames
4718 that are sufficiently small and have no path information
4719 into a canonical native form. Eg. "blah" converted to
4720 "libblah.so" or "blah.dll" etc.
4723 *) New function ERR_error_string_n(e, buf, len) which is like
4724 ERR_error_string(e, buf), but writes at most 'len' bytes
4725 including the 0 terminator. For ERR_error_string_n, 'buf'
4727 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4729 *) CONF library reworked to become more general. A new CONF
4730 configuration file reader "class" is implemented as well as a
4731 new functions (NCONF_*, for "New CONF") to handle it. The now
4732 old CONF_* functions are still there, but are reimplemented to
4733 work in terms of the new functions. Also, a set of functions
4734 to handle the internal storage of the configuration data is
4735 provided to make it easier to write new configuration file
4736 reader "classes" (I can definitely see something reading a
4737 configuration file in XML format, for example), called _CONF_*,
4738 or "the configuration storage API"...
4740 The new configuration file reading functions are:
4742 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4743 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4745 NCONF_default, NCONF_WIN32
4747 NCONF_dump_fp, NCONF_dump_bio
4749 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4750 NCONF_new creates a new CONF object. This works in the same way
4751 as other interfaces in OpenSSL, like the BIO interface.
4752 NCONF_dump_* dump the internal storage of the configuration file,
4753 which is useful for debugging. All other functions take the same
4754 arguments as the old CONF_* functions wth the exception of the
4755 first that must be a `CONF *' instead of a `LHASH *'.
4757 To make it easer to use the new classes with the old CONF_* functions,
4758 the function CONF_set_default_method is provided.
4761 *) Add '-tls1' option to 'openssl ciphers', which was already
4762 mentioned in the documentation but had not been implemented.
4763 (This option is not yet really useful because even the additional
4764 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4767 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4768 OpenSSL-based applications) load shared libraries and bind to
4769 them in a portable way.
4770 [Geoff Thorpe, with contributions from Richard Levitte]
4772 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4774 *) Make sure _lrotl and _lrotr are only used with MSVC.
4776 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4777 (the default implementation of RAND_status).
4779 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4780 to '-clrext' (= clear extensions), as intended and documented.
4781 [Bodo Moeller; inconsistency pointed out by Michael Attili
4784 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4785 was larger than the MD block size.
4786 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4788 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4789 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4790 using the passed key: if the passed key was a private key the result
4791 of X509_print(), for example, would be to print out all the private key
4795 *) des_quad_cksum() byte order bug fix.
4796 [Ulf Möller, using the problem description in krb4-0.9.7, where
4797 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4799 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4801 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4803 *) For easily testing in shell scripts whether some command
4804 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4805 returns with exit code 0 iff no command of the given name is available.
4806 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4807 the output goes to stdout and nothing is printed to stderr.
4808 Additional arguments are always ignored.
4810 Since for each cipher there is a command of the same name,
4811 the 'no-cipher' compilation switches can be tested this way.
4813 ('openssl no-XXX' is not able to detect pseudo-commands such
4814 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4817 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4820 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4821 is set; it will be thrown away anyway because each handshake creates
4823 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4824 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4825 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4826 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4829 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4830 'Q' and 'R' lose their special meanings (quit/renegotiate).
4831 This is part of what -quiet does; unlike -quiet, -ign_eof
4832 does not suppress any output.
4835 *) Add compatibility options to the purpose and trust code. The
4836 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4837 accepts a certificate or CA, this was the previous behaviour,
4838 with all the associated security issues.
4840 X509_TRUST_COMPAT is the old trust behaviour: only and
4841 automatically trust self signed roots in certificate store. A
4842 new trust setting X509_TRUST_DEFAULT is used to specify that
4843 a purpose has no associated trust setting and it should instead
4844 use the value in the default purpose.
4847 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4848 and fix a memory leak.
4851 *) In util/mkerr.pl (which implements 'make errors'), preserve
4852 reason strings from the previous version of the .c file, as
4853 the default to have only downcase letters (and digits) in
4854 automatically generated reasons codes is not always appropriate.
4857 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4858 using strerror. Previously, ERR_reason_error_string() returned
4859 library names as reason strings for SYSerr; but SYSerr is a special
4860 case where small numbers are errno values, not library numbers.
4863 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4864 converts DSA parameters into DH parameters. (When creating parameters,
4865 DSA_generate_parameters is used.)
4868 *) Include 'length' (recommended exponent length) in C code generated
4869 by 'openssl dhparam -C'.
4872 *) The second argument to set_label in perlasm was already being used
4873 so couldn't be used as a "file scope" flag. Moved to third argument
4877 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4878 instead of RAND_bytes for encryption IVs and salts.
4881 *) Include RAND_status() into RAND_METHOD instead of implementing
4882 it only for md_rand.c Otherwise replacing the PRNG by calling
4883 RAND_set_rand_method would be impossible.
4886 *) Don't let DSA_generate_key() enter an infinite loop if the random
4887 number generation fails.
4890 *) New 'rand' application for creating pseudo-random output.
4893 *) Added configuration support for Linux/IA64
4894 [Rolf Haberrecker <rolf@suse.de>]
4896 *) Assembler module support for Mingw32.
4899 *) Shared library support for HPUX (in shlib/).
4900 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4902 *) Shared library support for Solaris gcc.
4903 [Lutz Behnke <behnke@trustcenter.de>]
4905 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4907 *) PKCS7_encrypt() was adding text MIME headers twice because they
4908 were added manually and by SMIME_crlf_copy().
4911 *) In bntest.c don't call BN_rand with zero bits argument.
4912 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4914 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4915 case was implemented. This caused BN_div_recp() to fail occasionally.
4918 *) Add an optional second argument to the set_label() in the perl
4919 assembly language builder. If this argument exists and is set
4920 to 1 it signals that the assembler should use a symbol whose
4921 scope is the entire file, not just the current function. This
4922 is needed with MASM which uses the format label:: for this scope.
4923 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4925 *) Change the ASN1 types so they are typedefs by default. Before
4926 almost all types were #define'd to ASN1_STRING which was causing
4927 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4931 *) Change names of new functions to the new get1/get0 naming
4932 convention: After 'get1', the caller owns a reference count
4933 and has to call ..._free; 'get0' returns a pointer to some
4934 data structure without incrementing reference counters.
4935 (Some of the existing 'get' functions increment a reference
4936 counter, some don't.)
4937 Similarly, 'set1' and 'add1' functions increase reference
4938 counters or duplicate objects.
4941 *) Allow for the possibility of temp RSA key generation failure:
4942 the code used to assume it always worked and crashed on failure.
4945 *) Fix potential buffer overrun problem in BIO_printf().
4946 [Ulf Möller, using public domain code by Patrick Powell; problem
4947 pointed out by David Sacerdote <das33@cornell.edu>]
4949 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4950 RAND_egd() and RAND_status(). In the command line application,
4951 the EGD socket can be specified like a seed file using RANDFILE
4955 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4956 Some CAs (e.g. Verisign) distribute certificates in this form.
4959 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4960 list to exclude them. This means that no special compilation option
4961 is needed to use anonymous DH: it just needs to be included in the
4965 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4966 EVP_MD_type. The old functionality is available in a new macro called
4967 EVP_MD_md(). Change code that uses it and update docs.
4970 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4971 where the 'void *' argument is replaced by a function pointer argument.
4972 Previously 'void *' was abused to point to functions, which works on
4973 many platforms, but is not correct. As these functions are usually
4974 called by macros defined in OpenSSL header files, most source code
4975 should work without changes.
4978 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4979 sections with information on -D... compiler switches used for
4980 compiling the library so that applications can see them. To enable
4981 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4982 must be defined. E.g.,
4983 #define OPENSSL_ALGORITHM_DEFINES
4984 #include <openssl/opensslconf.h>
4985 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4986 [Richard Levitte, Ulf and Bodo Möller]
4988 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4992 *) Change the 'other' type in certificate aux info to a STACK_OF
4993 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4994 the required ASN1 format: arbitrary types determined by an OID.
4997 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4998 argument to 'req'. This is not because the function is newer or
4999 better than others it just uses the work 'NEW' in the certificate
5000 request header lines. Some software needs this.
5003 *) Reorganise password command line arguments: now passwords can be
5004 obtained from various sources. Delete the PEM_cb function and make
5005 it the default behaviour: i.e. if the callback is NULL and the
5006 usrdata argument is not NULL interpret it as a null terminated pass
5007 phrase. If usrdata and the callback are NULL then the pass phrase
5008 is prompted for as usual.
5011 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5012 the support is automatically enabled. The resulting binaries will
5013 autodetect the card and use it if present.
5014 [Ben Laurie and Compaq Inc.]
5016 *) Work around for Netscape hang bug. This sends certificate request
5017 and server done in one record. Since this is perfectly legal in the
5018 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5019 the bugs/SSLv3 entry for more info.
5022 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5025 *) Add -rand argument to smime and pkcs12 applications and read/write
5029 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5032 *) Add command line password options to the remaining applications.
5035 *) Bug fix for BN_div_recp() for numerators with an even number of
5039 *) More tests in bntest.c, and changed test_bn output.
5042 *) ./config recognizes MacOS X now.
5045 *) Bug fix for BN_div() when the first words of num and divsor are
5046 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5049 *) Add support for various broken PKCS#8 formats, and command line
5050 options to produce them.
5053 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5054 get temporary BIGNUMs from a BN_CTX.
5057 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5061 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5062 include a #define from the old name to the new. The original intent
5063 was that statically linked binaries could for example just call
5064 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5065 link with digests. This never worked becayse SSLeay_add_all_digests()
5066 and SSLeay_add_all_ciphers() were in the same source file so calling
5067 one would link with the other. They are now in separate source files.
5070 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5073 *) Use a less unusual form of the Miller-Rabin primality test (it used
5074 a binary algorithm for exponentiation integrated into the Miller-Rabin
5075 loop, our standard modexp algorithms are faster).
5078 *) Support for the EBCDIC character set completed.
5079 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5081 *) Source code cleanups: use const where appropriate, eliminate casts,
5082 use void * instead of char * in lhash.
5085 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5086 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5087 this the server could overwrite ephemeral keys that the client
5091 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5092 using 50 iterations of the Rabin-Miller test.
5094 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5095 iterations of the Rabin-Miller test as required by the appendix
5096 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5097 As BN_is_prime_fasttest includes trial division, DSA parameter
5098 generation becomes much faster.
5100 This implies a change for the callback functions in DSA_is_prime
5101 and DSA_generate_parameters: The callback function is called once
5102 for each positive witness in the Rabin-Miller test, not just
5103 occasionally in the inner loop; and the parameters to the
5104 callback function now provide an iteration count for the outer
5105 loop rather than for the current invocation of the inner loop.
5106 DSA_generate_parameters additionally can call the callback
5107 function with an 'iteration count' of -1, meaning that a
5108 candidate has passed the trial division test (when q is generated
5109 from an application-provided seed, trial division is skipped).
5112 *) New function BN_is_prime_fasttest that optionally does trial
5113 division before starting the Rabin-Miller test and has
5114 an additional BN_CTX * argument (whereas BN_is_prime always
5115 has to allocate at least one BN_CTX).
5116 'callback(1, -1, cb_arg)' is called when a number has passed the
5117 trial division stage.
5120 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5124 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5127 *) New function BN_pseudo_rand().
5130 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5131 bignum version of BN_from_montgomery() with the working code from
5132 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5136 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5137 made it impossible to use the same SSL_SESSION data structure in
5138 SSL2 clients in multiple threads.
5141 *) The return value of RAND_load_file() no longer counts bytes obtained
5142 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5143 to seed the PRNG (previously an explicit byte count was required).
5144 [Ulf Möller, Bodo Möller]
5146 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5147 used (char *) instead of (void *) and had casts all over the place.
5150 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5153 *) Retain source code compatibility for BN_prime_checks macro:
5154 BN_is_prime(..., BN_prime_checks, ...) now uses
5155 BN_prime_checks_for_size to determine the appropriate number of
5156 Rabin-Miller iterations.
5159 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5160 DH_CHECK_P_NOT_SAFE_PRIME.
5161 (Check if this is true? OpenPGP calls them "strong".)
5164 *) Merge the functionality of "dh" and "gendh" programs into a new program
5165 "dhparam". The old programs are retained for now but will handle DH keys
5166 (instead of parameters) in future.
5169 *) Make the ciphers, s_server and s_client programs check the return values
5170 when a new cipher list is set.
5173 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5174 ciphers. Before when the 56bit ciphers were enabled the sorting was
5177 The syntax for the cipher sorting has been extended to support sorting by
5178 cipher-strength (using the strength_bits hard coded in the tables).
5179 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5181 Fix a bug in the cipher-command parser: when supplying a cipher command
5182 string with an "undefined" symbol (neither command nor alphanumeric
5183 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5184 an error is flagged.
5186 Due to the strength-sorting extension, the code of the
5187 ssl_create_cipher_list() function was completely rearranged. I hope that
5188 the readability was also increased :-)
5189 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5191 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5192 for the first serial number and places 2 in the serial number file. This
5193 avoids problems when the root CA is created with serial number zero and
5194 the first user certificate has the same issuer name and serial number
5198 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5199 the new code. Add documentation for this stuff.
5202 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5203 X509_*() to X509at_*() on the grounds that they don't handle X509
5204 structures and behave in an analagous way to the X509v3 functions:
5205 they shouldn't be called directly but wrapper functions should be used
5208 So we also now have some wrapper functions that call the X509at functions
5209 when passed certificate requests. (TO DO: similar things can be done with
5210 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5211 things. Some of these need some d2i or i2d and print functionality
5212 because they handle more complex structures.)
5215 *) Add missing #ifndefs that caused missing symbols when building libssl
5216 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5217 NO_RSA in ssl/s2*.c.
5218 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5220 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5221 has a return value which indicates the quality of the random data
5222 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5223 error queue. New function RAND_pseudo_bytes() generates output that is
5224 guaranteed to be unique but not unpredictable. RAND_add is like
5225 RAND_seed, but takes an extra argument for an entropy estimate
5226 (RAND_seed always assumes full entropy).
5229 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5230 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5231 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5232 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5233 false-positive rate of at most 2^-80 for random input.
5236 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5239 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5240 in the 0.9.5 release), this returns the chain
5241 from an X509_CTX structure with a dup of the stack and all
5242 the X509 reference counts upped: so the stack will exist
5243 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5246 Also make SSL_SESSION_print() print out the verify return
5250 *) Add manpage for the pkcs12 command. Also change the default
5251 behaviour so MAC iteration counts are used unless the new
5252 -nomaciter option is used. This improves file security and
5253 only older versions of MSIE (4.0 for example) need it.
5256 *) Honor the no-xxx Configure options when creating .DEF files.
5259 *) Add PKCS#10 attributes to field table: challengePassword,
5260 unstructuredName and unstructuredAddress. These are taken from
5261 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5262 international characters are used.
5264 More changes to X509_ATTRIBUTE code: allow the setting of types
5265 based on strings. Remove the 'loc' parameter when adding
5266 attributes because these will be a SET OF encoding which is sorted
5270 *) Initial changes to the 'req' utility to allow request generation
5271 automation. This will allow an application to just generate a template
5272 file containing all the field values and have req construct the
5275 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5276 used all over the place including certificate requests and PKCS#7
5277 structures. They are currently handled manually where necessary with
5278 some primitive wrappers for PKCS#7. The new functions behave in a
5279 manner analogous to the X509 extension functions: they allow
5280 attributes to be looked up by NID and added.
5282 Later something similar to the X509V3 code would be desirable to
5283 automatically handle the encoding, decoding and printing of the
5284 more complex types. The string types like challengePassword can
5285 be handled by the string table functions.
5287 Also modified the multi byte string table handling. Now there is
5288 a 'global mask' which masks out certain types. The table itself
5289 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5290 is useful when for example there is only one permissible type
5291 (as in countryName) and using the mask might result in no valid
5295 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5296 SSL_get_peer_finished to allow applications to obtain the latest
5297 Finished messages sent to the peer or expected from the peer,
5298 respectively. (SSL_get_peer_finished is usually the Finished message
5299 actually received from the peer, otherwise the protocol will be aborted.)
5301 As the Finished message are message digests of the complete handshake
5302 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5303 be used for external authentication procedures when the authentication
5304 provided by SSL/TLS is not desired or is not enough.
5307 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5308 the host supports BWX extension and if Compaq C is present on the
5309 $PATH. Just exploiting of the BWX extension results in 20-30%
5310 performance kick for some algorithms, e.g. DES and RC4 to mention
5311 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5315 *) Add support for MS "fast SGC". This is arguably a violation of the
5316 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5317 weak crypto and after checking the certificate is SGC a second one
5318 with strong crypto. MS SGC stops the first handshake after receiving
5319 the server certificate message and sends a second client hello. Since
5320 a server will typically do all the time consuming operations before
5321 expecting any further messages from the client (server key exchange
5322 is the most expensive) there is little difference between the two.
5324 To get OpenSSL to support MS SGC we have to permit a second client
5325 hello message after we have sent server done. In addition we have to
5326 reset the MAC if we do get this second client hello.
5329 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5330 if a DER encoded private key is RSA or DSA traditional format. Changed
5331 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5332 format DER encoded private key. Newer code should use PKCS#8 format which
5333 has the key type encoded in the ASN1 structure. Added DER private key
5334 support to pkcs8 application.
5337 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5338 ciphersuites has been selected (as required by the SSL 3/TLS 1
5339 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5340 is set, we interpret this as a request to violate the specification
5341 (the worst that can happen is a handshake failure, and 'correct'
5342 behaviour would result in a handshake failure anyway).
5345 *) In SSL_CTX_add_session, take into account that there might be multiple
5346 SSL_SESSION structures with the same session ID (e.g. when two threads
5347 concurrently obtain them from an external cache).
5348 The internal cache can handle only one SSL_SESSION with a given ID,
5349 so if there's a conflict, we now throw out the old one to achieve
5353 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5354 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5355 some routines that use cipher OIDs: some ciphers do not have OIDs
5356 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5360 *) Simplify the trust setting structure and code. Now we just have
5361 two sequences of OIDs for trusted and rejected settings. These will
5362 typically have values the same as the extended key usage extension
5363 and any application specific purposes.
5365 The trust checking code now has a default behaviour: it will just
5366 check for an object with the same NID as the passed id. Functions can
5367 be provided to override either the default behaviour or the behaviour
5368 for a given id. SSL client, server and email already have functions
5369 in place for compatibility: they check the NID and also return "trusted"
5370 if the certificate is self signed.
5373 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5374 traditional format into an EVP_PKEY structure.
5377 *) Add a password callback function PEM_cb() which either prompts for
5378 a password if usr_data is NULL or otherwise assumes it is a null
5379 terminated password. Allow passwords to be passed on command line
5380 environment or config files in a few more utilities.
5383 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5384 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5385 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5386 Update documentation.
5389 *) Support for ASN1 "NULL" type. This could be handled before by using
5390 ASN1_TYPE but there wasn't any function that would try to read a NULL
5391 and produce an error if it couldn't. For compatibility we also have
5392 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5393 don't allocate anything because they don't need to.
5396 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5398 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5400 *) Rebuild of the memory allocation routines used by OpenSSL code and
5401 possibly others as well. The purpose is to make an interface that
5402 provide hooks so anyone can build a separate set of allocation and
5403 deallocation routines to be used by OpenSSL, for example memory
5404 pool implementations, or something else, which was previously hard
5405 since Malloc(), Realloc() and Free() were defined as macros having
5406 the values malloc, realloc and free, respectively (except for Win32
5407 compilations). The same is provided for memory debugging code.
5408 OpenSSL already comes with functionality to find memory leaks, but
5409 this gives people a chance to debug other memory problems.
5411 With these changes, a new set of functions and macros have appeared:
5413 CRYPTO_set_mem_debug_functions() [F]
5414 CRYPTO_get_mem_debug_functions() [F]
5415 CRYPTO_dbg_set_options() [F]
5416 CRYPTO_dbg_get_options() [F]
5417 CRYPTO_malloc_debug_init() [M]
5419 The memory debug functions are NULL by default, unless the library
5420 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5421 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5422 gives the standard debugging functions that come with OpenSSL) or
5423 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5424 provided by the library user) must be used. When the standard
5425 debugging functions are used, CRYPTO_dbg_set_options can be used to
5426 request additional information:
5427 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5428 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5430 Also, things like CRYPTO_set_mem_functions will always give the
5431 expected result (the new set of functions is used for allocation
5432 and deallocation) at all times, regardless of platform and compiler
5435 To finish it up, some functions that were never use in any other
5436 way than through macros have a new API and new semantic:
5439 CRYPTO_dbg_realloc()
5442 All macros of value have retained their old syntax.
5443 [Richard Levitte and Bodo Moeller]
5445 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5446 ordering of SMIMECapabilities wasn't in "strength order" and there
5447 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5451 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5452 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5453 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5455 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5456 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5457 functionality to handle multipart/signed properly) and a utility
5458 called 'smime' to call all this stuff. This is based on code I
5459 originally wrote for Celo who have kindly allowed it to be
5460 included in OpenSSL.
5463 *) Add variants des_set_key_checked and des_set_key_unchecked of
5464 des_set_key (aka des_key_sched). Global variable des_check_key
5465 decides which of these is called by des_set_key; this way
5466 des_check_key behaves as it always did, but applications and
5467 the library itself, which was buggy for des_check_key == 1,
5468 have a cleaner way to pick the version they need.
5471 *) New function PKCS12_newpass() which changes the password of a
5475 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5476 dynamic mix. In both cases the ids can be used as an index into the
5477 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5478 functions so they accept a list of the field values and the
5479 application doesn't need to directly manipulate the X509_TRUST
5483 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5487 *) Modify the way the V3 extension code looks up extensions. This now
5488 works in a similar way to the object code: we have some "standard"
5489 extensions in a static table which is searched with OBJ_bsearch()
5490 and the application can add dynamic ones if needed. The file
5491 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5492 updated whenever a new extension is added to the core code and kept
5493 in ext_nid order. There is a simple program 'tabtest.c' which checks
5494 this. New extensions are not added too often so this file can readily
5495 be maintained manually.
5497 There are two big advantages in doing things this way. The extensions
5498 can be looked up immediately and no longer need to be "added" using
5499 X509V3_add_standard_extensions(): this function now does nothing.
5500 [Side note: I get *lots* of email saying the extension code doesn't
5501 work because people forget to call this function]
5502 Also no dynamic allocation is done unless new extensions are added:
5503 so if we don't add custom extensions there is no need to call
5504 X509V3_EXT_cleanup().
5507 *) Modify enc utility's salting as follows: make salting the default. Add a
5508 magic header, so unsalted files fail gracefully instead of just decrypting
5509 to garbage. This is because not salting is a big security hole, so people
5510 should be discouraged from doing it.
5513 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5514 digest to be passed on the command line but it only used this
5515 parameter when signing a certificate. Modified so all relevant
5516 operations are affected by the digest parameter including the
5517 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5518 DSA key was used because it didn't fix the digest.
5521 *) Initial certificate chain verify code. Currently tests the untrusted
5522 certificates for consistency with the verify purpose (which is set
5523 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5525 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5526 this is because it will reject chains with invalid extensions whereas
5527 every previous version of OpenSSL and SSLeay made no checks at all.
5529 Trust code: checks the root CA for the relevant trust settings. Trust
5530 settings have an initial value consistent with the verify purpose: e.g.
5531 if the verify purpose is for SSL client use it expects the CA to be
5532 trusted for SSL client use. However the default value can be changed to
5533 permit custom trust settings: one example of this would be to only trust
5534 certificates from a specific "secure" set of CAs.
5536 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5537 which should be used for version portability: especially since the
5538 verify structure is likely to change more often now.
5540 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5541 to set them. If not set then assume SSL clients will verify SSL servers
5544 Two new options to the verify program: -untrusted allows a set of
5545 untrusted certificates to be passed in and -purpose which sets the
5546 intended purpose of the certificate. If a purpose is set then the
5547 new chain verify code is used to check extension consistency.
5550 *) Support for the authority information access extension.
5553 *) Modify RSA and DSA PEM read routines to transparently handle
5554 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5555 public keys in a format compatible with certificate
5556 SubjectPublicKeyInfo structures. Unfortunately there were already
5557 functions called *_PublicKey_* which used various odd formats so
5558 these are retained for compatibility: however the DSA variants were
5559 never in a public release so they have been deleted. Changed dsa/rsa
5560 utilities to handle the new format: note no releases ever handled public
5561 keys so we should be OK.
5563 The primary motivation for this change is to avoid the same fiasco
5564 that dogs private keys: there are several incompatible private key
5565 formats some of which are standard and some OpenSSL specific and
5566 require various evil hacks to allow partial transparent handling and
5567 even then it doesn't work with DER formats. Given the option anything
5568 other than PKCS#8 should be dumped: but the other formats have to
5569 stay in the name of compatibility.
5571 With public keys and the benefit of hindsight one standard format
5572 is used which works with EVP_PKEY, RSA or DSA structures: though
5573 it clearly returns an error if you try to read the wrong kind of key.
5575 Added a -pubkey option to the 'x509' utility to output the public key.
5576 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5577 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5578 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5579 that do the same as the EVP_PKEY_assign_*() except they up the
5580 reference count of the added key (they don't "swallow" the
5584 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5585 CRLs would fail if the file contained no certificates or no CRLs:
5586 added a new function to read in both types and return the number
5587 read: this means that if none are read it will be an error. The
5588 DER versions of the certificate and CRL reader would always fail
5589 because it isn't possible to mix certificates and CRLs in DER format
5590 without choking one or the other routine. Changed this to just read
5591 a certificate: this is the best we can do. Also modified the code
5592 in apps/verify.c to take notice of return codes: it was previously
5593 attempting to read in certificates from NULL pointers and ignoring
5594 any errors: this is one reason why the cert and CRL reader seemed
5595 to work. It doesn't check return codes from the default certificate
5596 routines: these may well fail if the certificates aren't installed.
5599 *) Code to support otherName option in GeneralName.
5602 *) First update to verify code. Change the verify utility
5603 so it warns if it is passed a self signed certificate:
5604 for consistency with the normal behaviour. X509_verify
5605 has been modified to it will now verify a self signed
5606 certificate if *exactly* the same certificate appears
5607 in the store: it was previously impossible to trust a
5608 single self signed certificate. This means that:
5609 openssl verify ss.pem
5610 now gives a warning about a self signed certificate but
5611 openssl verify -CAfile ss.pem ss.pem
5615 *) For servers, store verify_result in SSL_SESSION data structure
5616 (and add it to external session representation).
5617 This is needed when client certificate verifications fails,
5618 but an application-provided verification callback (set by
5619 SSL_CTX_set_cert_verify_callback) allows accepting the session
5620 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5621 but returns 1): When the session is reused, we have to set
5622 ssl->verify_result to the appropriate error code to avoid
5624 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5626 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5627 case in PKCS7_dataInit() where the signed PKCS7 structure
5628 didn't contain any existing data because it was being created.
5629 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5631 *) Add a salt to the key derivation routines in enc.c. This
5632 forms the first 8 bytes of the encrypted file. Also add a
5633 -S option to allow a salt to be input on the command line.
5636 *) New function X509_cmp(). Oddly enough there wasn't a function
5637 to compare two certificates. We do this by working out the SHA1
5638 hash and comparing that. X509_cmp() will be needed by the trust
5642 *) SSL_get1_session() is like SSL_get_session(), but increments
5643 the reference count in the SSL_SESSION returned.
5644 [Geoff Thorpe <geoff@eu.c2.net>]
5646 *) Fix for 'req': it was adding a null to request attributes.
5647 Also change the X509_LOOKUP and X509_INFO code to handle
5648 certificate auxiliary information.
5651 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5655 *) Add the possibility to add extra information to the memory leak
5656 detecting output, to form tracebacks, showing from where each
5657 allocation was originated: CRYPTO_push_info("constant string") adds
5658 the string plus current file name and line number to a per-thread
5659 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5660 is like calling CYRPTO_pop_info() until the stack is empty.
5661 Also updated memory leak detection code to be multi-thread-safe.
5664 *) Add options -text and -noout to pkcs7 utility and delete the
5665 encryption options which never did anything. Update docs.
5668 *) Add options to some of the utilities to allow the pass phrase
5669 to be included on either the command line (not recommended on
5670 OSes like Unix) or read from the environment. Update the
5671 manpages and fix a few bugs.
5674 *) Add a few manpages for some of the openssl commands.
5677 *) Fix the -revoke option in ca. It was freeing up memory twice,
5678 leaking and not finding already revoked certificates.
5681 *) Extensive changes to support certificate auxiliary information.
5682 This involves the use of X509_CERT_AUX structure and X509_AUX
5683 functions. An X509_AUX function such as PEM_read_X509_AUX()
5684 can still read in a certificate file in the usual way but it
5685 will also read in any additional "auxiliary information". By
5686 doing things this way a fair degree of compatibility can be
5687 retained: existing certificates can have this information added
5688 using the new 'x509' options.
5690 Current auxiliary information includes an "alias" and some trust
5691 settings. The trust settings will ultimately be used in enhanced
5692 certificate chain verification routines: currently a certificate
5693 can only be trusted if it is self signed and then it is trusted
5697 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5698 The problem was that one of the replacement routines had not been working
5699 since SSLeay releases. For now the offending routine has been replaced
5700 with non-optimised assembler. Even so, this now gives around 95%
5701 performance improvement for 1024 bit RSA signs.
5704 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5705 handling. Most clients have the effective key size in bits equal to
5706 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5707 A few however don't do this and instead use the size of the decrypted key
5708 to determine the RC2 key length and the AlgorithmIdentifier to determine
5709 the effective key length. In this case the effective key length can still
5710 be 40 bits but the key length can be 168 bits for example. This is fixed
5711 by manually forcing an RC2 key into the EVP_PKEY structure because the
5712 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5713 the key length and effective key length are equal.
5716 *) Add a bunch of functions that should simplify the creation of
5717 X509_NAME structures. Now you should be able to do:
5718 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5719 and have it automatically work out the correct field type and fill in
5720 the structures. The more adventurous can try:
5721 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5722 and it will (hopefully) work out the correct multibyte encoding.
5725 *) Change the 'req' utility to use the new field handling and multibyte
5726 copy routines. Before the DN field creation was handled in an ad hoc
5727 way in req, ca, and x509 which was rather broken and didn't support
5728 BMPStrings or UTF8Strings. Since some software doesn't implement
5729 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5730 using the dirstring_type option. See the new comment in the default
5731 openssl.cnf for more info.
5734 *) Make crypto/rand/md_rand.c more robust:
5735 - Assure unique random numbers after fork().
5736 - Make sure that concurrent threads access the global counter and
5737 md serializably so that we never lose entropy in them
5738 or use exactly the same state in multiple threads.
5739 Access to the large state is not always serializable because
5740 the additional locking could be a performance killer, and
5741 md should be large enough anyway.
5744 *) New file apps/app_rand.c with commonly needed functionality
5745 for handling the random seed file.
5747 Use the random seed file in some applications that previously did not:
5749 dsaparam -genkey (which also ignored its '-rand' option),
5752 x509 (when signing).
5753 Except on systems with /dev/urandom, it is crucial to have a random
5754 seed file at least for key creation, DSA signing, and for DH exchanges;
5755 for RSA signatures we could do without one.
5757 gendh and gendsa (unlike genrsa) used to read only the first byte
5758 of each file listed in the '-rand' option. The function as previously
5759 found in genrsa is now in app_rand.c and is used by all programs
5760 that support '-rand'.
5763 *) In RAND_write_file, use mode 0600 for creating files;
5764 don't just chmod when it may be too late.
5767 *) Report an error from X509_STORE_load_locations
5768 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5771 *) New function ASN1_mbstring_copy() this copies a string in either
5772 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5773 into an ASN1_STRING type. A mask of permissible types is passed
5774 and it chooses the "minimal" type to use or an error if not type
5778 *) Add function equivalents to the various macros in asn1.h. The old
5779 macros are retained with an M_ prefix. Code inside the library can
5780 use the M_ macros. External code (including the openssl utility)
5781 should *NOT* in order to be "shared library friendly".
5784 *) Add various functions that can check a certificate's extensions
5785 to see if it usable for various purposes such as SSL client,
5786 server or S/MIME and CAs of these types. This is currently
5787 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5788 verification. Also added a -purpose flag to x509 utility to
5789 print out all the purposes.
5792 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5796 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5797 for, obtain and decode and extension and obtain its critical flag.
5798 This allows all the necessary extension code to be handled in a
5799 single function call.
5802 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5803 platforms. See crypto/rc4/rc4_enc.c for further details.
5806 *) New -noout option to asn1parse. This causes no output to be produced
5807 its main use is when combined with -strparse and -out to extract data
5808 from a file (which may not be in ASN.1 format).
5811 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5812 when producing the local key id.
5813 [Richard Levitte <levitte@stacken.kth.se>]
5815 *) New option -dhparam in s_server. This allows a DH parameter file to be
5816 stated explicitly. If it is not stated then it tries the first server
5817 certificate file. The previous behaviour hard coded the filename
5821 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5822 a public key to be input or output. For example:
5823 openssl rsa -in key.pem -pubout -out pubkey.pem
5824 Also added necessary DSA public key functions to handle this.
5827 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5828 in the message. This was handled by allowing
5829 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5830 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5832 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5833 to the end of the strings whereas this didn't. This would cause problems
5834 if strings read with d2i_ASN1_bytes() were later modified.
5835 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5837 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5838 data and it contains EOF it will end up returning an error. This is
5839 caused by input 46 bytes long. The cause is due to the way base64
5840 BIOs find the start of base64 encoded data. They do this by trying a
5841 trial decode on each line until they find one that works. When they
5842 do a flag is set and it starts again knowing it can pass all the
5843 data directly through the decoder. Unfortunately it doesn't reset
5844 the context it uses. This means that if EOF is reached an attempt
5845 is made to pass two EOFs through the context and this causes the
5846 resulting error. This can also cause other problems as well. As is
5847 usual with these problems it takes *ages* to find and the fix is
5848 trivial: move one line.
5849 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5851 *) Ugly workaround to get s_client and s_server working under Windows. The
5852 old code wouldn't work because it needed to select() on sockets and the
5853 tty (for keypresses and to see if data could be written). Win32 only
5854 supports select() on sockets so we select() with a 1s timeout on the
5855 sockets and then see if any characters are waiting to be read, if none
5856 are present then we retry, we also assume we can always write data to
5857 the tty. This isn't nice because the code then blocks until we've
5858 received a complete line of data and it is effectively polling the
5859 keyboard at 1s intervals: however it's quite a bit better than not
5860 working at all :-) A dedicated Windows application might handle this
5861 with an event loop for example.
5864 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5865 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5866 will be called when RSA_sign() and RSA_verify() are used. This is useful
5867 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5868 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5869 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5870 This necessitated the support of an extra signature type NID_md5_sha1
5871 for SSL signatures and modifications to the SSL library to use it instead
5872 of calling RSA_public_decrypt() and RSA_private_encrypt().
5875 *) Add new -verify -CAfile and -CApath options to the crl program, these
5876 will lookup a CRL issuers certificate and verify the signature in a
5877 similar way to the verify program. Tidy up the crl program so it
5878 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5879 less strict. It will now permit CRL extensions even if it is not
5880 a V2 CRL: this will allow it to tolerate some broken CRLs.
5883 *) Initialize all non-automatic variables each time one of the openssl
5884 sub-programs is started (this is necessary as they may be started
5885 multiple times from the "OpenSSL>" prompt).
5886 [Lennart Bang, Bodo Moeller]
5888 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5889 removing all other RSA functionality (this is what NO_RSA does). This
5890 is so (for example) those in the US can disable those operations covered
5891 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5895 *) Non-copying interface to BIO pairs.
5896 (still largely untested)
5899 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5900 ASCII string. This was handled independently in various places before.
5903 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5904 UTF8 strings a character at a time.
5907 *) Use client_version from client hello to select the protocol
5908 (s23_srvr.c) and for RSA client key exchange verification
5909 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5912 *) Add various utility functions to handle SPKACs, these were previously
5913 handled by poking round in the structure internals. Added new function
5914 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5915 print, verify and generate SPKACs. Based on an original idea from
5916 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5919 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5922 *) Allow the config file extension section to be overwritten on the
5923 command line. Based on an original idea from Massimiliano Pala
5924 <madwolf@comune.modena.it>. The new option is called -extensions
5925 and can be applied to ca, req and x509. Also -reqexts to override
5926 the request extensions in req and -crlexts to override the crl extensions
5930 *) Add new feature to the SPKAC handling in ca. Now you can include
5931 the same field multiple times by preceding it by "XXXX." for example:
5934 this is the same syntax as used in the req config file.
5937 *) Allow certificate extensions to be added to certificate requests. These
5938 are specified in a 'req_extensions' option of the req section of the
5939 config file. They can be printed out with the -text option to req but
5940 are otherwise ignored at present.
5943 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5944 data read consists of only the final block it would not decrypted because
5945 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5946 A misplaced 'break' also meant the decrypted final block might not be
5947 copied until the next read.
5950 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5951 a few extra parameters to the DH structure: these will be useful if
5952 for example we want the value of 'q' or implement X9.42 DH.
5955 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5956 provides hooks that allow the default DSA functions or functions on a
5957 "per key" basis to be replaced. This allows hardware acceleration and
5958 hardware key storage to be handled without major modification to the
5959 library. Also added low level modexp hooks and CRYPTO_EX structure and
5960 associated functions.
5963 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5964 as "read only": it can't be written to and the buffer it points to will
5965 not be freed. Reading from a read only BIO is much more efficient than
5966 a normal memory BIO. This was added because there are several times when
5967 an area of memory needs to be read from a BIO. The previous method was
5968 to create a memory BIO and write the data to it, this results in two
5969 copies of the data and an O(n^2) reading algorithm. There is a new
5970 function BIO_new_mem_buf() which creates a read only memory BIO from
5971 an area of memory. Also modified the PKCS#7 routines to use read only
5975 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5976 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5977 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5978 but a retry condition occured while trying to read the rest.
5981 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5982 NID_pkcs7_encrypted by default: this was wrong since this should almost
5983 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5984 the encrypted data type: this is a more sensible place to put it and it
5985 allows the PKCS#12 code to be tidied up that duplicated this
5989 *) Changed obj_dat.pl script so it takes its input and output files on
5990 the command line. This should avoid shell escape redirection problems
5994 *) Initial support for certificate extension requests, these are included
5995 in things like Xenroll certificate requests. Included functions to allow
5996 extensions to be obtained and added.
5999 *) -crlf option to s_client and s_server for sending newlines as
6000 CRLF (as required by many protocols).
6003 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6005 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6006 [Ralf S. Engelschall]
6008 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6009 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6011 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6015 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6016 DH parameters/keys (q is lost during that conversion, but the resulting
6017 DH parameters contain its length).
6019 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6020 much faster than DH_generate_parameters (which creates parameters
6021 where p = 2*q + 1), and also the smaller q makes DH computations
6022 much more efficient (160-bit exponentiation instead of 1024-bit
6023 exponentiation); so this provides a convenient way to support DHE
6024 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6025 utter importance to use
6026 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6028 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6029 when such DH parameters are used, because otherwise small subgroup
6030 attacks may become possible!
6033 *) Avoid memory leak in i2d_DHparams.
6036 *) Allow the -k option to be used more than once in the enc program:
6037 this allows the same encrypted message to be read by multiple recipients.
6040 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6041 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6042 it will always use the numerical form of the OID, even if it has a short
6046 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6047 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6048 otherwise bn_mod_exp was called. In the case of hardware keys for example
6049 no private key components need be present and it might store extra data
6050 in the RSA structure, which cannot be accessed from bn_mod_exp.
6051 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6052 private key operations.
6055 *) Added support for SPARC Linux.
6058 *) pem_password_cb function type incompatibly changed from
6059 typedef int pem_password_cb(char *buf, int size, int rwflag);
6061 ....(char *buf, int size, int rwflag, void *userdata);
6062 so that applications can pass data to their callbacks:
6063 The PEM[_ASN1]_{read,write}... functions and macros now take an
6064 additional void * argument, which is just handed through whenever
6065 the password callback is called.
6066 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6068 New function SSL_CTX_set_default_passwd_cb_userdata.
6070 Compatibility note: As many C implementations push function arguments
6071 onto the stack in reverse order, the new library version is likely to
6072 interoperate with programs that have been compiled with the old
6073 pem_password_cb definition (PEM_whatever takes some data that
6074 happens to be on the stack as its last argument, and the callback
6075 just ignores this garbage); but there is no guarantee whatsoever that
6078 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6079 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6080 problems not only on Windows, but also on some Unix platforms.
6081 To avoid problematic command lines, these definitions are now in an
6082 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6083 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6086 *) MIPS III/IV assembler module is reimplemented.
6089 *) More DES library cleanups: remove references to srand/rand and
6090 delete an unused file.
6093 *) Add support for the the free Netwide assembler (NASM) under Win32,
6094 since not many people have MASM (ml) and it can be hard to obtain.
6095 This is currently experimental but it seems to work OK and pass all
6096 the tests. Check out INSTALL.W32 for info.
6099 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6100 without temporary keys kept an extra copy of the server key,
6101 and connections with temporary keys did not free everything in case
6105 *) New function RSA_check_key and new openssl rsa option -check
6106 for verifying the consistency of RSA keys.
6107 [Ulf Moeller, Bodo Moeller]
6109 *) Various changes to make Win32 compile work:
6110 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6111 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6112 comparison" warnings.
6113 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6116 *) Add a debugging option to PKCS#5 v2 key generation function: when
6117 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6118 derived keys are printed to stderr.
6121 *) Copy the flags in ASN1_STRING_dup().
6122 [Roman E. Pavlov <pre@mo.msk.ru>]
6124 *) The x509 application mishandled signing requests containing DSA
6125 keys when the signing key was also DSA and the parameters didn't match.
6127 It was supposed to omit the parameters when they matched the signing key:
6128 the verifying software was then supposed to automatically use the CA's
6129 parameters if they were absent from the end user certificate.
6131 Omitting parameters is no longer recommended. The test was also
6132 the wrong way round! This was probably due to unusual behaviour in
6133 EVP_cmp_parameters() which returns 1 if the parameters match.
6134 This meant that parameters were omitted when they *didn't* match and
6135 the certificate was useless. Certificates signed with 'ca' didn't have
6137 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6139 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6140 The interface is as follows:
6141 Applications can use
6142 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6143 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6144 "off" is now the default.
6145 The library internally uses
6146 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6147 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6148 to disable memory-checking temporarily.
6150 Some inconsistent states that previously were possible (and were
6151 even the default) are now avoided.
6153 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6154 with each memory chunk allocated; this is occasionally more helpful
6155 than just having a counter.
6157 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6159 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6163 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6164 which largely parallels "options", but is for changing API behaviour,
6165 whereas "options" are about protocol behaviour.
6166 Initial "mode" flags are:
6168 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6169 a single record has been written.
6170 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6171 retries use the same buffer location.
6172 (But all of the contents must be
6176 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6179 *) Fix problems with no-hmac etc.
6180 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6182 *) New functions RSA_get_default_method(), RSA_set_method() and
6183 RSA_get_method(). These allows replacement of RSA_METHODs without having
6184 to mess around with the internals of an RSA structure.
6187 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6188 Also really enable memory leak checks in openssl.c and in some
6190 [Chad C. Mulligan, Bodo Moeller]
6192 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6193 up the length of negative integers. This has now been simplified to just
6194 store the length when it is first determined and use it later, rather
6195 than trying to keep track of where data is copied and updating it to
6197 [Steve Henson, reported by Brien Wheeler
6198 <bwheeler@authentica-security.com>]
6200 *) Add a new function PKCS7_signatureVerify. This allows the verification
6201 of a PKCS#7 signature but with the signing certificate passed to the
6202 function itself. This contrasts with PKCS7_dataVerify which assumes the
6203 certificate is present in the PKCS#7 structure. This isn't always the
6204 case: certificates can be omitted from a PKCS#7 structure and be
6205 distributed by "out of band" means (such as a certificate database).
6208 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6209 function prototypes in pem.h, also change util/mkdef.pl to add the
6210 necessary function names.
6213 *) mk1mf.pl (used by Windows builds) did not properly read the
6214 options set by Configure in the top level Makefile, and Configure
6215 was not even able to write more than one option correctly.
6216 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6219 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6220 file to be loaded from a BIO or FILE pointer. The BIO version will
6221 for example allow memory BIOs to contain config info.
6224 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6225 Whoever hopes to achieve shared-library compatibility across versions
6226 must use this, not the compile-time macro.
6227 (Exercise 0.9.4: Which is the minimum library version required by
6229 Note: All this applies only to multi-threaded programs, others don't
6233 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6234 through a BIO pair triggered the default case, i.e.
6235 SSLerr(...,SSL_R_UNKNOWN_STATE).
6238 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6239 can use the SSL library even if none of the specific BIOs is
6243 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6244 for the encoded length.
6245 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6247 *) Add initial documentation of the X509V3 functions.
6250 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6251 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6252 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6253 secure PKCS#8 private key format with a high iteration count.
6256 *) Fix determination of Perl interpreter: A perl or perl5
6257 _directory_ in $PATH was also accepted as the interpreter.
6258 [Ralf S. Engelschall]
6260 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6261 wrong with it but it was very old and did things like calling
6262 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6266 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6267 to use the new extension code.
6270 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6271 with macros. This should make it easier to change their form, add extra
6272 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6276 *) Add to configuration table a new entry that can specify an alternative
6277 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6278 according to Mark Crispin <MRC@Panda.COM>.
6282 *) DES CBC did not update the IV. Weird.
6285 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6286 Changing the behaviour of the former might break existing programs --
6287 where IV updating is needed, des_ncbc_encrypt can be used.
6290 *) When bntest is run from "make test" it drives bc to check its
6291 calculations, as well as internally checking them. If an internal check
6292 fails, it needs to cause bc to give a non-zero result or make test carries
6293 on without noticing the failure. Fixed.
6296 *) DES library cleanups.
6299 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6300 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6301 ciphers. NOTE: although the key derivation function has been verified
6302 against some published test vectors it has not been extensively tested
6303 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6307 *) Instead of "mkdir -p", which is not fully portable, use new
6308 Perl script "util/mkdir-p.pl".
6311 *) Rewrite the way password based encryption (PBE) is handled. It used to
6312 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6313 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6314 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6315 the 'parameter' field of the AlgorithmIdentifier is passed to the
6316 underlying key generation function so it must do its own ASN1 parsing.
6317 This has also changed the EVP_PBE_CipherInit() function which now has a
6318 'parameter' argument instead of literal salt and iteration count values
6319 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6322 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6323 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6324 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6325 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6326 value was just used as a "magic string" and not used directly its
6327 value doesn't matter.
6330 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6334 *) "linux-sparc64" configuration (ultrapenguin).
6335 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6336 "linux-sparc" configuration.
6337 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6339 *) config now generates no-xxx options for missing ciphers.
6342 *) Support the EBCDIC character set (work in progress).
6343 File ebcdic.c not yet included because it has a different license.
6344 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6346 *) Support BS2000/OSD-POSIX.
6347 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6349 *) Make callbacks for key generation use void * instead of char *.
6352 *) Make S/MIME samples compile (not yet tested).
6355 *) Additional typesafe stacks.
6358 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6362 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6364 *) New configuration variant "sco5-gcc".
6366 *) Updated some demos.
6367 [Sean O Riordain, Wade Scholine]
6369 *) Add missing BIO_free at exit of pkcs12 application.
6372 *) Fix memory leak in conf.c.
6375 *) Updates for Win32 to assembler version of MD5.
6378 *) Set #! path to perl in apps/der_chop to where we found it
6379 instead of using a fixed path.
6382 *) SHA library changes for irix64-mips4-cc.
6385 *) Improvements for VMS support.
6389 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6391 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6392 This also avoids the problems with SC4.2 and unpatched SC5.
6393 [Andy Polyakov <appro@fy.chalmers.se>]
6395 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6396 These are required because of the typesafe stack would otherwise break
6397 existing code. If old code used a structure member which used to be STACK
6398 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6399 sk_num or sk_value it would produce an error because the num, data members
6400 are not present in STACK_OF. Now it just produces a warning. sk_set
6401 replaces the old method of assigning a value to sk_value
6402 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6403 that does this will no longer work (and should use sk_set instead) but
6404 this could be regarded as a "questionable" behaviour anyway.
6407 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6408 correctly handle encrypted S/MIME data.
6411 *) Change type of various DES function arguments from des_cblock
6412 (which means, in function argument declarations, pointer to char)
6413 to des_cblock * (meaning pointer to array with 8 char elements),
6414 which allows the compiler to do more typechecking; it was like
6415 that back in SSLeay, but with lots of ugly casts.
6417 Introduce new type const_des_cblock.
6420 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6421 problems: find RecipientInfo structure that matches recipient certificate
6422 and initialise the ASN1 structures properly based on passed cipher.
6425 *) Belatedly make the BN tests actually check the results.
6428 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6429 to and from BNs: it was completely broken. New compilation option
6430 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6431 key elements as negative integers.
6434 *) Reorganize and speed up MD5.
6435 [Andy Polyakov <appro@fy.chalmers.se>]
6438 [Richard Levitte <richard@levitte.org>]
6440 *) New option -out to asn1parse to allow the parsed structure to be
6441 output to a file. This is most useful when combined with the -strparse
6442 option to examine the output of things like OCTET STRINGS.
6445 *) Make SSL library a little more fool-proof by not requiring any longer
6446 that SSL_set_{accept,connect}_state be called before
6447 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6448 in many applications because usually everything *appeared* to work as
6449 intended anyway -- now it really works as intended).
6452 *) Move openssl.cnf out of lib/.
6455 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6456 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6457 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6458 [Ralf S. Engelschall]
6460 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6461 handle PKCS#7 enveloped data properly.
6462 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6464 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6465 copying pointers. The cert_st handling is changed by this in
6466 various ways (and thus what used to be known as ctx->default_cert
6467 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6468 any longer when s->cert does not give us what we need).
6469 ssl_cert_instantiate becomes obsolete by this change.
6470 As soon as we've got the new code right (possibly it already is?),
6471 we have solved a couple of bugs of the earlier code where s->cert
6472 was used as if it could not have been shared with other SSL structures.
6474 Note that using the SSL API in certain dirty ways now will result
6475 in different behaviour than observed with earlier library versions:
6476 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6477 does not influence s as it used to.
6479 In order to clean up things more thoroughly, inside SSL_SESSION
6480 we don't use CERT any longer, but a new structure SESS_CERT
6481 that holds per-session data (if available); currently, this is
6482 the peer's certificate chain and, for clients, the server's certificate
6483 and temporary key. CERT holds only those values that can have
6484 meaningful defaults in an SSL_CTX.
6487 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6488 from the internal representation. Various PKCS#7 fixes: remove some
6489 evil casts and set the enc_dig_alg field properly based on the signing
6493 *) Allow PKCS#12 password to be set from the command line or the
6494 environment. Let 'ca' get its config file name from the environment
6495 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6499 *) Allow certificate policies extension to use an IA5STRING for the
6500 organization field. This is contrary to the PKIX definition but
6501 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6505 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6506 without disallowing inline assembler and the like for non-pedantic builds.
6509 *) Support Borland C++ builder.
6510 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6515 *) SHA-1 cleanups and performance enhancements.
6516 [Andy Polyakov <appro@fy.chalmers.se>]
6518 *) Sparc v8plus assembler for the bignum library.
6519 [Andy Polyakov <appro@fy.chalmers.se>]
6521 *) Accept any -xxx and +xxx compiler options in Configure.
6524 *) Update HPUX configuration.
6527 *) Add missing sk_<type>_unshift() function to safestack.h
6528 [Ralf S. Engelschall]
6530 *) New function SSL_CTX_use_certificate_chain_file that sets the
6531 "extra_cert"s in addition to the certificate. (This makes sense
6532 only for "PEM" format files, as chains as a whole are not
6536 *) Support verify_depth from the SSL API.
6537 x509_vfy.c had what can be considered an off-by-one-error:
6538 Its depth (which was not part of the external interface)
6539 was actually counting the number of certificates in a chain;
6540 now it really counts the depth.
6543 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6544 instead of X509err, which often resulted in confusing error
6545 messages since the error codes are not globally unique
6546 (e.g. an alleged error in ssl3_accept when a certificate
6547 didn't match the private key).
6549 *) New function SSL_CTX_set_session_id_context that allows to set a default
6550 value (so that you don't need SSL_set_session_id_context for each
6551 connection using the SSL_CTX).
6554 *) OAEP decoding bug fix.
6557 *) Support INSTALL_PREFIX for package builders, as proposed by
6561 *) New Configure options "threads" and "no-threads". For systems
6562 where the proper compiler options are known (currently Solaris
6563 and Linux), "threads" is the default.
6566 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6569 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6570 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6571 such as /usr/local/bin.
6574 *) "make linux-shared" to build shared libraries.
6575 [Niels Poppe <niels@netbox.org>]
6577 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6580 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6581 extension adding in x509 utility.
6584 *) Remove NOPROTO sections and error code comments.
6587 *) Partial rewrite of the DEF file generator to now parse the ANSI
6591 *) New Configure options --prefix=DIR and --openssldir=DIR.
6594 *) Complete rewrite of the error code script(s). It is all now handled
6595 by one script at the top level which handles error code gathering,
6596 header rewriting and C source file generation. It should be much better
6597 than the old method: it now uses a modified version of Ulf's parser to
6598 read the ANSI prototypes in all header files (thus the old K&R definitions
6599 aren't needed for error creation any more) and do a better job of
6600 translating function codes into names. The old 'ASN1 error code imbedded
6601 in a comment' is no longer necessary and it doesn't use .err files which
6602 have now been deleted. Also the error code call doesn't have to appear all
6603 on one line (which resulted in some large lines...).
6606 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6609 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6610 0 (which usually indicates a closed connection), but continue reading.
6613 *) Fix some race conditions.
6616 *) Add support for CRL distribution points extension. Add Certificate
6617 Policies and CRL distribution points documentation.
6620 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6623 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6624 8 of keying material. Merlin has also confirmed interop with this fix
6625 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6626 [Merlin Hughes <merlin@baltimore.ie>]
6628 *) Fix lots of warnings.
6629 [Richard Levitte <levitte@stacken.kth.se>]
6631 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6632 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6633 [Richard Levitte <levitte@stacken.kth.se>]
6635 *) Fix problems with sizeof(long) == 8.
6636 [Andy Polyakov <appro@fy.chalmers.se>]
6638 *) Change functions to ANSI C.
6641 *) Fix typos in error codes.
6642 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6644 *) Remove defunct assembler files from Configure.
6647 *) SPARC v8 assembler BIGNUM implementation.
6648 [Andy Polyakov <appro@fy.chalmers.se>]
6650 *) Support for Certificate Policies extension: both print and set.
6651 Various additions to support the r2i method this uses.
6654 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6655 return a const string when you are expecting an allocated buffer.
6658 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6659 types DirectoryString and DisplayText.
6662 *) Add code to allow r2i extensions to access the configuration database,
6663 add an LHASH database driver and add several ctx helper functions.
6666 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6667 fail when they extended the size of a BIGNUM.
6670 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6671 support typesafe stack.
6674 *) Fix typo in SSL_[gs]et_options().
6675 [Nils Frostberg <nils@medcom.se>]
6677 *) Delete various functions and files that belonged to the (now obsolete)
6678 old X509V3 handling code.
6681 *) New Configure option "rsaref".
6684 *) Don't auto-generate pem.h.
6687 *) Introduce type-safe ASN.1 SETs.
6690 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6691 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6693 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6694 that links with OpenSSL (well at least cause lots of warnings), but fear
6695 not: the conversion is trivial, and it eliminates loads of evil casts. A
6696 few STACKed things have been converted already. Feel free to convert more.
6697 In the fullness of time, I'll do away with the STACK type altogether.
6700 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6701 specified in <certfile> by updating the entry in the index.txt file.
6702 This way one no longer has to edit the index.txt file manually for
6703 revoking a certificate. The -revoke option does the gory details now.
6704 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6706 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6707 `-text' option at all and this way the `-noout -text' combination was
6708 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6709 [Ralf S. Engelschall]
6711 *) Make sure a corresponding plain text error message exists for the
6712 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6713 verify callback function determined that a certificate was revoked.
6714 [Ralf S. Engelschall]
6716 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6717 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6718 all available cipers including rc5, which was forgotten until now.
6719 In order to let the testing shell script know which algorithms
6720 are available, a new (up to now undocumented) command
6721 "openssl list-cipher-commands" is used.
6724 *) Bugfix: s_client occasionally would sleep in select() when
6725 it should have checked SSL_pending() first.
6728 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6729 the raw DSA values prior to ASN.1 encoding.
6732 *) Tweaks to Configure
6733 [Niels Poppe <niels@netbox.org>]
6735 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6739 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6742 *) New config option to avoid instructions that are illegal on the 80386.
6743 The default code is faster, but requires at least a 486.
6746 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6747 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6748 same as SSL2_VERSION anyway.
6751 *) New "-showcerts" option for s_client.
6754 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6755 application. Various cleanups and fixes.
6758 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6759 modify error routines to work internally. Add error codes and PBE init
6760 to library startup routines.
6763 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6764 packing functions to asn1 and evp. Changed function names and error
6765 codes along the way.
6768 *) PKCS12 integration: and so it begins... First of several patches to
6769 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6770 objects to objects.h
6773 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6774 and display support for Thawte strong extranet extension.
6777 *) Add LinuxPPC support.
6778 [Jeff Dubrule <igor@pobox.org>]
6780 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6781 bn_div_words in alpha.s.
6782 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6784 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6785 OAEP isn't supported when OpenSSL is built with RSAref.
6786 [Ulf Moeller <ulf@fitug.de>]
6788 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6789 so they no longer are missing under -DNOPROTO.
6790 [Soren S. Jorvang <soren@t.dk>]
6793 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6795 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6796 doesn't work when the session is reused. Coming soon!
6799 *) Fix a security hole, that allows sessions to be reused in the wrong
6800 context thus bypassing client cert protection! All software that uses
6801 client certs and session caches in multiple contexts NEEDS PATCHING to
6802 allow session reuse! A fuller solution is in the works.
6803 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6805 *) Some more source tree cleanups (removed obsolete files
6806 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6807 permission on "config" script to be executable) and a fix for the INSTALL
6809 [Ulf Moeller <ulf@fitug.de>]
6811 *) Remove some legacy and erroneous uses of malloc, free instead of
6813 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6815 *) Make rsa_oaep_test return non-zero on error.
6816 [Ulf Moeller <ulf@fitug.de>]
6818 *) Add support for native Solaris shared libraries. Configure
6819 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6820 if someone would make that last step automatic.
6821 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6823 *) ctx_size was not built with the right compiler during "make links". Fixed.
6826 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6827 except NULL ciphers". This means the default cipher list will no longer
6828 enable NULL ciphers. They need to be specifically enabled e.g. with
6829 the string "DEFAULT:eNULL".
6832 *) Fix to RSA private encryption routines: if p < q then it would
6833 occasionally produce an invalid result. This will only happen with
6834 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6837 *) Be less restrictive and allow also `perl util/perlpath.pl
6838 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6839 because this way one can also use an interpreter named `perl5' (which is
6840 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6841 installed as `perl').
6842 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6844 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6845 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6847 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6848 advapi32.lib to Win32 build and change the pem test comparision
6849 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6850 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6851 and crypto/des/ede_cbcm_enc.c.
6854 *) DES quad checksum was broken on big-endian architectures. Fixed.
6857 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6858 Win32 test batch file so it (might) work again. The Win32 test batch file
6859 is horrible: I feel ill....
6862 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6863 in e_os.h. Audit of header files to check ANSI and non ANSI
6864 sections: 10 functions were absent from non ANSI section and not exported
6865 from Windows DLLs. Fixed up libeay.num for new functions.
6868 *) Make `openssl version' output lines consistent.
6869 [Ralf S. Engelschall]
6871 *) Fix Win32 symbol export lists for BIO functions: Added
6872 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6873 to ms/libeay{16,32}.def.
6874 [Ralf S. Engelschall]
6876 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6877 fine under Unix and passes some trivial tests I've now added. But the
6878 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6879 added to make sure no one expects that this stuff really works in the
6880 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6881 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6883 [Ralf S. Engelschall]
6885 *) Fix the generation of two part addresses in perl.
6886 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6888 *) Add config entry for Linux on MIPS.
6889 [John Tobey <jtobey@channel1.com>]
6891 *) Make links whenever Configure is run, unless we are on Windoze.
6894 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6895 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6899 *) Add a useful kludge to allow package maintainers to specify compiler and
6900 other platforms details on the command line without having to patch the
6901 Configure script everytime: One now can use ``perl Configure
6902 <id>:<details>'', i.e. platform ids are allowed to have details appended
6903 to them (seperated by colons). This is treated as there would be a static
6904 pre-configured entry in Configure's %table under key <id> with value
6905 <details> and ``perl Configure <id>'' is called. So, when you want to
6906 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6907 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6908 now, which overrides the FreeBSD-elf entry on-the-fly.
6909 [Ralf S. Engelschall]
6911 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6914 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6915 on the `perl Configure ...' command line. This way one can compile
6916 OpenSSL libraries with Position Independent Code (PIC) which is needed
6917 for linking it into DSOs.
6918 [Ralf S. Engelschall]
6920 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6924 *) Cleaned up the LICENSE document: The official contact for any license
6925 questions now is the OpenSSL core team under openssl-core@openssl.org.
6926 And add a paragraph about the dual-license situation to make sure people
6927 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6928 to the OpenSSL toolkit.
6929 [Ralf S. Engelschall]
6931 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6932 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6933 Additonally cleaned up the `make links' target: Remove unnecessary
6934 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6935 to speed processing and no longer clutter the display with confusing
6936 stuff. Instead only the actually done links are displayed.
6937 [Ralf S. Engelschall]
6939 *) Permit null encryption ciphersuites, used for authentication only. It used
6940 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6941 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6945 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6946 signed attributes when verifying signatures (this would break them),
6947 the detached data encoding was wrong and public keys obtained using
6948 X509_get_pubkey() weren't freed.
6951 *) Add text documentation for the BUFFER functions. Also added a work around
6952 to a Win95 console bug. This was triggered by the password read stuff: the
6953 last character typed gets carried over to the next fread(). If you were
6954 generating a new cert request using 'req' for example then the last
6955 character of the passphrase would be CR which would then enter the first
6959 *) Added the new `Includes OpenSSL Cryptography Software' button as
6960 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6961 button and can be used by applications based on OpenSSL to show the
6962 relationship to the OpenSSL project.
6963 [Ralf S. Engelschall]
6965 *) Remove confusing variables in function signatures in files
6966 ssl/ssl_lib.c and ssl/ssl.h.
6967 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6969 *) Don't install bss_file.c under PREFIX/include/
6970 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6972 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6973 functions that return function pointers and has support for NT specific
6974 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6975 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6976 unsigned to signed types: this was killing the Win32 compile.
6979 *) Add new certificate file to stack functions,
6980 SSL_add_dir_cert_subjects_to_stack() and
6981 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6982 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6983 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6984 This means that Apache-SSL and similar packages don't have to mess around
6985 to add as many CAs as they want to the preferred list.
6988 *) Experiment with doxygen documentation. Currently only partially applied to
6990 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6991 openssl.doxy as the configuration file.
6994 *) Get rid of remaining C++-style comments which strict C compilers hate.
6995 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6997 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6998 compiled in by default: it has problems with large keys.
7001 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7002 DH private keys and/or callback functions which directly correspond to
7003 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7004 is needed for applications which have to configure certificates on a
7005 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7007 For the RSA certificate situation is makes no difference, but
7008 for the DSA certificate situation this fixes the "no shared cipher"
7009 problem where the OpenSSL cipher selection procedure failed because the
7010 temporary keys were not overtaken from the context and the API provided
7011 no way to reconfigure them.
7012 The new functions now let applications reconfigure the stuff and they
7013 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7014 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7015 non-public-API function ssl_cert_instantiate() is used as a helper
7016 function and also to reduce code redundancy inside ssl_rsa.c.
7017 [Ralf S. Engelschall]
7019 *) Move s_server -dcert and -dkey options out of the undocumented feature
7020 area because they are useful for the DSA situation and should be
7021 recognized by the users.
7022 [Ralf S. Engelschall]
7024 *) Fix the cipher decision scheme for export ciphers: the export bits are
7025 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7026 SSL_EXP_MASK. So, the original variable has to be used instead of the
7027 already masked variable.
7028 [Richard Levitte <levitte@stacken.kth.se>]
7030 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7031 [Richard Levitte <levitte@stacken.kth.se>]
7033 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7034 from `int' to `unsigned int' because it's a length and initialized by
7035 EVP_DigestFinal() which expects an `unsigned int *'.
7036 [Richard Levitte <levitte@stacken.kth.se>]
7038 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7039 script. Instead use the usual Shell->Perl transition trick.
7040 [Ralf S. Engelschall]
7042 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7043 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7044 -noout -modulus' as it's already the case for `openssl rsa -noout
7045 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7046 currently the public key is printed (a decision which was already done by
7047 `openssl dsa -modulus' in the past) which serves a similar purpose.
7048 Additionally the NO_RSA no longer completely removes the whole -modulus
7049 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7051 [Ralf S. Engelschall]
7053 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7054 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7055 [Arne Ansper <arne@ats.cyber.ee>]
7057 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7058 to be added. Now both 'req' and 'ca' can use new objects defined in the
7062 *) Add cool BIO that does syslog (or event log on NT).
7063 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7065 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7066 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7067 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7068 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7071 *) Add preliminary config info for new extension code.
7074 *) Make RSA_NO_PADDING really use no padding.
7075 [Ulf Moeller <ulf@fitug.de>]
7077 *) Generate errors when private/public key check is done.
7080 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7081 for some CRL extensions and new objects added.
7084 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7085 key usage extension and fuller support for authority key id.
7088 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7089 padding method for RSA, which is recommended for new applications in PKCS
7090 #1 v2.0 (RFC 2437, October 1998).
7091 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7092 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7093 against Bleichbacher's attack on RSA.
7094 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7097 *) Updates to the new SSL compression code
7098 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7100 *) Fix so that the version number in the master secret, when passed
7101 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7102 (because the server will not accept higher), that the version number
7103 is 0x03,0x01, not 0x03,0x00
7104 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7106 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7107 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7108 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7111 *) Support for RAW extensions where an arbitrary extension can be
7112 created by including its DER encoding. See apps/openssl.cnf for
7116 *) Make sure latest Perl versions don't interpret some generated C array
7117 code as Perl array code in the crypto/err/err_genc.pl script.
7118 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7120 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7121 not many people have the assembler. Various Win32 compilation fixes and
7122 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7126 *) Modify configure script 'Configure' to automatically create crypto/date.h
7127 file under Win32 and also build pem.h from pem.org. New script
7128 util/mkfiles.pl to create the MINFO file on environments that can't do a
7129 'make files': perl util/mkfiles.pl >MINFO should work.
7132 *) Major rework of DES function declarations, in the pursuit of correctness
7133 and purity. As a result, many evil casts evaporated, and some weirdness,
7134 too. You may find this causes warnings in your code. Zapping your evil
7135 casts will probably fix them. Mostly.
7138 *) Fix for a typo in asn1.h. Bug fix to object creation script
7139 obj_dat.pl. It considered a zero in an object definition to mean
7140 "end of object": none of the objects in objects.h have any zeros
7141 so it wasn't spotted.
7142 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7144 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7145 Masking (CBCM). In the absence of test vectors, the best I have been able
7146 to do is check that the decrypt undoes the encrypt, so far. Send me test
7147 vectors if you have them.
7150 *) Correct calculation of key length for export ciphers (too much space was
7151 allocated for null ciphers). This has not been tested!
7154 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7155 message is now correct (it understands "crypto" and "ssl" on its
7156 command line). There is also now an "update" option. This will update
7157 the util/ssleay.num and util/libeay.num files with any new functions.
7159 perl util/mkdef.pl crypto ssl update
7160 it will update them.
7163 *) Overhauled the Perl interface (perl/*):
7164 - ported BN stuff to OpenSSL's different BN library
7165 - made the perl/ source tree CVS-aware
7166 - renamed the package from SSLeay to OpenSSL (the files still contain
7167 their history because I've copied them in the repository)
7168 - removed obsolete files (the test scripts will be replaced
7169 by better Test::Harness variants in the future)
7170 [Ralf S. Engelschall]
7172 *) First cut for a very conservative source tree cleanup:
7173 1. merge various obsolete readme texts into doc/ssleay.txt
7174 where we collect the old documents and readme texts.
7175 2. remove the first part of files where I'm already sure that we no
7176 longer need them because of three reasons: either they are just temporary
7177 files which were left by Eric or they are preserved original files where
7178 I've verified that the diff is also available in the CVS via "cvs diff
7179 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7180 the crypto/md/ stuff).
7181 [Ralf S. Engelschall]
7183 *) More extension code. Incomplete support for subject and issuer alt
7184 name, issuer and authority key id. Change the i2v function parameters
7185 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7186 what that's for :-) Fix to ASN1 macro which messed up
7187 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7190 *) Preliminary support for ENUMERATED type. This is largely copied from the
7194 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7195 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7197 *) Make sure `make rehash' target really finds the `openssl' program.
7198 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7200 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7201 like to hear about it if this slows down other processors.
7204 *) Add CygWin32 platform information to Configure script.
7205 [Alan Batie <batie@aahz.jf.intel.com>]
7207 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7208 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7210 *) New program nseq to manipulate netscape certificate sequences
7213 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7217 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7218 but the BN code had some problems that would cause failures when
7219 doing certificate verification and some other functions.
7220 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7222 *) Add ASN1 and PEM code to support netscape certificate sequences.
7225 *) Add ASN1 and PEM code to support netscape certificate sequences.
7228 *) Add several PKIX and private extended key usage OIDs.
7231 *) Modify the 'ca' program to handle the new extension code. Modify
7232 openssl.cnf for new extension format, add comments.
7235 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7236 and add a sample to openssl.cnf so req -x509 now adds appropriate
7240 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7241 error code, add initial support to X509_print() and x509 application.
7244 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7245 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7246 stuff is currently isolated and isn't even compiled yet.
7249 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7250 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7251 Removed the versions check from X509 routines when loading extensions:
7252 this allows certain broken certificates that don't set the version
7253 properly to be processed.
7256 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7257 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7258 can still be regenerated with "make depend".
7261 *) Spelling mistake in C version of CAST-128.
7262 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7264 *) Changes to the error generation code. The perl script err-code.pl
7265 now reads in the old error codes and retains the old numbers, only
7266 adding new ones if necessary. It also only changes the .err files if new
7267 codes are added. The makefiles have been modified to only insert errors
7268 when needed (to avoid needlessly modifying header files). This is done
7269 by only inserting errors if the .err file is newer than the auto generated
7270 C file. To rebuild all the error codes from scratch (the old behaviour)
7271 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7272 or delete all the .err files.
7275 *) CAST-128 was incorrectly implemented for short keys. The C version has
7276 been fixed, but is untested. The assembler versions are also fixed, but
7277 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7278 to regenerate it if needed.
7279 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7280 Hagino <itojun@kame.net>]
7282 *) File was opened incorrectly in randfile.c.
7283 [Ulf Möller <ulf@fitug.de>]
7285 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7286 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7287 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7288 al: it's just almost always a UTCTime. Note this patch adds new error
7289 codes so do a "make errors" if there are problems.
7292 *) Correct Linux 1 recognition in config.
7293 [Ulf Möller <ulf@fitug.de>]
7295 *) Remove pointless MD5 hash when using DSA keys in ca.
7296 [Anonymous <nobody@replay.com>]
7298 *) Generate an error if given an empty string as a cert directory. Also
7299 generate an error if handed NULL (previously returned 0 to indicate an
7300 error, but didn't set one).
7301 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7303 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7306 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7307 parameters. This was causing a warning which killed off the Win32 compile.
7310 *) Remove C++ style comments from crypto/bn/bn_local.h.
7311 [Neil Costigan <neil.costigan@celocom.com>]
7313 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7314 based on a text string, looking up short and long names and finally
7315 "dot" format. The "dot" format stuff didn't work. Added new function
7316 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7317 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7318 OID is not part of the table.
7321 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7322 X509_LOOKUP_by_alias().
7325 *) Sort openssl functions by name.
7328 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7329 encryption from sample DSA keys (in case anyone is interested the password
7333 *) Make _all_ *_free functions accept a NULL pointer.
7334 [Frans Heymans <fheymans@isaserver.be>]
7336 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7338 [Anonymous <nobody@replay.com>]
7340 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7341 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7343 *) Don't blow it for numeric -newkey arguments to apps/req.
7344 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7346 *) Temp key "for export" tests were wrong in s3_srvr.c.
7347 [Anonymous <nobody@replay.com>]
7349 *) Add prototype for temp key callback functions
7350 SSL_CTX_set_tmp_{rsa,dh}_callback().
7353 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7354 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7357 *) X509_name_add_entry() freed the wrong thing after an error.
7358 [Arne Ansper <arne@ats.cyber.ee>]
7360 *) rsa_eay.c would attempt to free a NULL context.
7361 [Arne Ansper <arne@ats.cyber.ee>]
7363 *) BIO_s_socket() had a broken should_retry() on Windoze.
7364 [Arne Ansper <arne@ats.cyber.ee>]
7366 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7367 [Arne Ansper <arne@ats.cyber.ee>]
7369 *) Make sure the already existing X509_STORE->depth variable is initialized
7370 in X509_STORE_new(), but document the fact that this variable is still
7371 unused in the certificate verification process.
7372 [Ralf S. Engelschall]
7374 *) Fix the various library and apps files to free up pkeys obtained from
7375 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7378 *) Fix reference counting in X509_PUBKEY_get(). This makes
7379 demos/maurice/example2.c work, amongst others, probably.
7380 [Steve Henson and Ben Laurie]
7382 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7383 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7384 are no longer created. This way we have a single and consistent command
7385 line interface `openssl <command>', similar to `cvs <command>'.
7386 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7388 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7389 BIT STRING wrapper always have zero unused bits.
7392 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7395 *) Make the top-level INSTALL documentation easier to understand.
7398 *) Makefiles updated to exit if an error occurs in a sub-directory
7399 make (including if user presses ^C) [Paul Sutton]
7401 *) Make Montgomery context stuff explicit in RSA data structure.
7404 *) Fix build order of pem and err to allow for generated pem.h.
7407 *) Fix renumbering bug in X509_NAME_delete_entry().
7410 *) Enhanced the err-ins.pl script so it makes the error library number
7411 global and can add a library name. This is needed for external ASN1 and
7412 other error libraries.
7415 *) Fixed sk_insert which never worked properly.
7418 *) Fix ASN1 macros so they can handle indefinite length construted
7419 EXPLICIT tags. Some non standard certificates use these: they can now
7423 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7424 into a single doc/ssleay.txt bundle. This way the information is still
7425 preserved but no longer messes up this directory. Now it's new room for
7426 the new set of documenation files.
7427 [Ralf S. Engelschall]
7429 *) SETs were incorrectly DER encoded. This was a major pain, because they
7430 shared code with SEQUENCEs, which aren't coded the same. This means that
7431 almost everything to do with SETs or SEQUENCEs has either changed name or
7432 number of arguments.
7433 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7435 *) Fix test data to work with the above.
7438 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7439 was already fixed by Eric for 0.9.1 it seems.
7440 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7442 *) Autodetect FreeBSD3.
7445 *) Fix various bugs in Configure. This affects the following platforms:
7449 unixware-2.0-pentium
7453 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7454 before they are needed.
7457 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7461 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7463 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7464 changed SSLeay to OpenSSL in version strings.
7465 [Ralf S. Engelschall]
7467 *) Some fixups to the top-level documents.
7470 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7471 because the symlink to include/ was missing.
7472 [Ralf S. Engelschall]
7474 *) Incorporated the popular no-RSA/DSA-only patches
7475 which allow to compile a RSA-free SSLeay.
7476 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7478 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7479 when "ssleay" is still not found.
7480 [Ralf S. Engelschall]
7482 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7483 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7485 *) Updated the README file.
7486 [Ralf S. Engelschall]
7488 *) Added various .cvsignore files in the CVS repository subdirs
7489 to make a "cvs update" really silent.
7490 [Ralf S. Engelschall]
7492 *) Recompiled the error-definition header files and added
7493 missing symbols to the Win32 linker tables.
7494 [Ralf S. Engelschall]
7496 *) Cleaned up the top-level documents;
7497 o new files: CHANGES and LICENSE
7498 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7499 o merged COPYRIGHT into LICENSE
7500 o removed obsolete TODO file
7501 o renamed MICROSOFT to INSTALL.W32
7502 [Ralf S. Engelschall]
7504 *) Removed dummy files from the 0.9.1b source tree:
7505 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7506 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7507 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7508 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7509 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7510 [Ralf S. Engelschall]
7512 *) Added various platform portability fixes.
7515 *) The Genesis of the OpenSSL rpject:
7516 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7517 Young and Tim J. Hudson created while they were working for C2Net until
7519 [The OpenSSL Project]
7522 Changes between 0.9.0b and 0.9.1b [not released]
7524 *) Updated a few CA certificates under certs/
7527 *) Changed some BIGNUM api stuff.
7530 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7531 DGUX x86, Linux Alpha, etc.
7534 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7535 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7539 *) Add -strparse option to asn1pars program which parses nested
7541 [Dr Stephen Henson <shenson@bigfoot.com>]
7543 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7546 *) DSA fix for "ca" program.
7549 *) Added "-genkey" option to "dsaparam" program.
7552 *) Added RIPE MD160 (rmd160) message digest.
7555 *) Added -a (all) option to "ssleay version" command.
7558 *) Added PLATFORM define which is the id given to Configure.
7561 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7564 *) Extended the ASN.1 parser routines.
7567 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7570 *) Added a BN_CTX to the BN library.
7573 *) Fixed the weak key values in DES library
7576 *) Changed API in EVP library for cipher aliases.
7579 *) Added support for RC2/64bit cipher.
7582 *) Converted the lhash library to the crypto/mem.c functions.
7585 *) Added more recognized ASN.1 object ids.
7588 *) Added more RSA padding checks for SSL/TLS.
7591 *) Added BIO proxy/filter functionality.
7594 *) Added extra_certs to SSL_CTX which can be used
7595 send extra CA certificates to the client in the CA cert chain sending
7596 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7599 *) Now Fortezza is denied in the authentication phase because
7600 this is key exchange mechanism is not supported by SSLeay at all.
7603 *) Additional PKCS1 checks.
7606 *) Support the string "TLSv1" for all TLS v1 ciphers.
7609 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7610 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7613 *) Fixed a few memory leaks.
7616 *) Fixed various code and comment typos.
7619 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7620 bytes sent in the client random.
7621 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob