5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
8 dedicated Montgomery multiplication procedure, is introduced.
9 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
10 "64-bit" performance on certain 32-bit targets.
13 *) New option SSL_OP_NO_COMP to disable use of compression selectively
14 in SSL structures. New SSL ctrl to set maximum send fragment size.
15 Save memory by seeting the I/O buffer sizes dynamically instead of
16 using the maximum available value.
19 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
20 in addition to the text details.
23 *) Very, very preliminary EXPERIMENTAL support for printing of general
24 ASN1 structures. This currently produces rather ugly output and doesn't
25 handle several customised structures at all.
28 *) Integrated support for PVK file format and some related formats such
29 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
30 these in the 'rsa' and 'dsa' utilities.
33 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
36 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
37 place for the (very old) "NETSCAPE" format certificates which are now
38 handled using new ASN1 code equivalents.
41 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
42 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
43 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
46 *) Modify CRL distribution points extension code to print out previously
47 unsupported fields. Enhance extension setting code to allow setting of
51 *) Add print and set support for Issuing Distribution Point CRL extension.
54 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
56 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
57 (part of SSL_OP_ALL). This option used to disable the
58 countermeasure against man-in-the-middle protocol-version
59 rollback in the SSL 2.0 server implementation, which is a bad
62 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
63 for Information Security, National Institute of Advanced Industrial
64 Science and Technology [AIST], Japan)]
66 *) Add two function to clear and return the verify parameter flags.
69 *) Keep cipherlists sorted in the source instead of sorting them at
70 runtime, thus removing the need for a lock.
73 *) Avoid some small subgroup attacks in Diffie-Hellman.
74 [Nick Mathewson and Ben Laurie]
76 *) Add functions for well-known primes.
79 *) Extended Windows CE support.
80 [Satoshi Nakamura and Andy Polyakov]
82 *) Initialize SSL_METHOD structures at compile time instead of during
83 runtime, thus removing the need for a lock.
86 *) Make PKCS7_decrypt() work even if no certificate is supplied by
87 attempting to decrypt each encrypted key in turn. Add support to
91 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
93 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
96 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
97 key into the same file any more.
100 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
103 *) Add -utf8 command line and config file option to 'ca'.
104 [Stefan <stf@udoma.org]
106 *) Removed the macro des_crypt(), as it seems to conflict with some
107 libraries. Use DES_crypt().
110 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
111 involves renaming the source and generated shared-libs for
112 both. The engines will accept the corrected or legacy ids
113 ('ncipher' and '4758_cca' respectively) when binding. NB,
114 this only applies when building 'shared'.
115 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
117 *) Add attribute functions to EVP_PKEY structure. Modify
118 PKCS12_create() to recognize a CSP name attribute and
119 use it. Make -CSP option work again in pkcs12 utility.
122 *) Add new functionality to the bn blinding code:
123 - automatic re-creation of the BN_BLINDING parameters after
124 a fixed number of uses (currently 32)
125 - add new function for parameter creation
126 - introduce flags to control the update behaviour of the
127 BN_BLINDING parameters
128 - hide BN_BLINDING structure
129 Add a second BN_BLINDING slot to the RSA structure to improve
130 performance when a single RSA object is shared among several
134 *) Add support for DTLS.
135 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
137 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
138 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
141 *) Remove buggy and incompletet DH cert support from
142 ssl/ssl_rsa.c and ssl/s3_both.c
145 *) Use SHA-1 instead of MD5 as the default digest algorithm for
146 the apps/openssl applications.
149 *) Compile clean with "-Wall -Wmissing-prototypes
150 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
151 DEBUG_SAFESTACK must also be set.
154 *) Change ./Configure so that certain algorithms can be disabled by default.
155 The new counterpiece to "no-xxx" is "enable-xxx".
157 The patented RC5 and MDC2 algorithms will now be disabled unless
158 "enable-rc5" and "enable-mdc2", respectively, are specified.
160 (IDEA remains enabled despite being patented. This is because IDEA
161 is frequently required for interoperability, and there is no license
162 fee for non-commercial use. As before, "no-idea" can be used to
163 avoid this algorithm.)
167 *) Add processing of proxy certificates (see RFC 3820). This work was
168 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
169 EGEE (Enabling Grids for E-science in Europe).
172 *) RC4 performance overhaul on modern architectures/implementations, such
173 as Intel P4, IA-64 and AMD64.
176 *) New utility extract-section.pl. This can be used specify an alternative
177 section number in a pod file instead of having to treat each file as
178 a separate case in Makefile. This can be done by adding two lines to the
181 =for comment openssl_section:XXX
183 The blank line is mandatory.
187 *) New arguments -certform, -keyform and -pass for s_client and s_server
188 to allow alternative format key and certificate files and passphrase
192 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
193 update associated structures and add various utility functions.
195 Add new policy related verify parameters, include policy checking in
196 standard verify code. Enhance 'smime' application with extra parameters
197 to support policy checking and print out.
200 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
201 Nehemiah processors. These extensions support AES encryption in hardware
202 as well as RNG (though RNG support is currently disabled).
203 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
205 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
208 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
209 [Andy Polyakov and a number of other people]
211 *) Improved PowerPC platform support. Most notably BIGNUM assembler
212 implementation contributed by IBM.
213 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
215 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
216 exponent rather than 'unsigned long'. There is a corresponding change to
217 the new 'rsa_keygen' element of the RSA_METHOD structure.
218 [Jelte Jansen, Geoff Thorpe]
220 *) Functionality for creating the initial serial number file is now
221 moved from CA.pl to the 'ca' utility with a new option -create_serial.
223 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
224 number file to 1, which is bound to cause problems. To avoid
225 the problems while respecting compatibility between different 0.9.7
226 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
227 CA.pl for serial number initialization. With the new release 0.9.8,
228 we can fix the problem directly in the 'ca' utility.)
231 *) Reduced header interdepencies by declaring more opaque objects in
232 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
233 give fewer recursive includes, which could break lazy source code - so
234 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
235 developers should define this symbol when building and using openssl to
236 ensure they track the recommended behaviour, interfaces, [etc], but
237 backwards-compatible behaviour prevails when this isn't defined.
240 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
243 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
244 This will generate a random key of the appropriate length based on the
245 cipher context. The EVP_CIPHER can provide its own random key generation
246 routine to support keys of a specific form. This is used in the des and
247 3des routines to generate a key of the correct parity. Update S/MIME
248 code to use new functions and hence generate correct parity DES keys.
249 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
250 valid (weak or incorrect parity).
253 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
254 as looking them up. This is useful when the verified structure may contain
255 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
256 present unless the new PKCS7_NO_CRL flag is asserted.
259 *) Extend ASN1 oid configuration module. It now additionally accepts the
262 shortName = some long name, 1.2.3.4
265 *) Reimplemented the BN_CTX implementation. There is now no more static
266 limitation on the number of variables it can handle nor the depth of the
267 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
268 information can now expand as required, and rather than having a single
269 static array of bignums, BN_CTX now uses a linked-list of such arrays
270 allowing it to expand on demand whilst maintaining the usefulness of
274 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
275 to allow all RSA operations to function using a single BN_CTX.
278 *) Preliminary support for certificate policy evaluation and checking. This
279 is initially intended to pass the tests outlined in "Conformance Testing
280 of Relying Party Client Certificate Path Processing Logic" v1.07.
283 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
284 remained unused and not that useful. A variety of other little bignum
285 tweaks and fixes have also been made continuing on from the audit (see
289 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
290 associated ASN1, EVP and SSL functions and old ASN1 macros.
293 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
294 and this should never fail. So the return value from the use of
295 BN_set_word() (which can fail due to needless expansion) is now deprecated;
296 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
299 *) BN_CTX_get() should return zero-valued bignums, providing the same
300 initialised value as BN_new().
301 [Geoff Thorpe, suggested by Ulf Möller]
303 *) Support for inhibitAnyPolicy certificate extension.
306 *) An audit of the BIGNUM code is underway, for which debugging code is
307 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
308 is considered valid when processing BIGNUMs, and causes execution to
309 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
310 further steps are taken to deliberately pollute unused data in BIGNUM
311 structures to try and expose faulty code further on. For now, openssl will
312 (in its default mode of operation) continue to tolerate the inconsistent
313 forms that it has tolerated in the past, but authors and packagers should
314 consider trying openssl and their own applications when compiled with
315 these debugging symbols defined. It will help highlight potential bugs in
316 their own code, and will improve the test coverage for OpenSSL itself. At
317 some point, these tighter rules will become openssl's default to improve
318 maintainability, though the assert()s and other overheads will remain only
319 in debugging configurations. See bn.h for more details.
320 [Geoff Thorpe, Nils Larsch, Ulf Möller]
322 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
323 that can only be obtained through BN_CTX_new() (which implicitly
324 initialises it). The presence of this function only made it possible
325 to overwrite an existing structure (and cause memory leaks).
328 *) Because of the callback-based approach for implementing LHASH as a
329 template type, lh_insert() adds opaque objects to hash-tables and
330 lh_doall() or lh_doall_arg() are typically used with a destructor callback
331 to clean up those corresponding objects before destroying the hash table
332 (and losing the object pointers). So some over-zealous constifications in
333 LHASH have been relaxed so that lh_insert() does not take (nor store) the
334 objects as "const" and the lh_doall[_arg] callback wrappers are not
335 prototyped to have "const" restrictions on the object pointers they are
336 given (and so aren't required to cast them away any more).
339 *) The tmdiff.h API was so ugly and minimal that our own timing utility
340 (speed) prefers to use its own implementation. The two implementations
341 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
342 its object type properly exposed (MS_TM) instead of casting to/from "char
343 *". This may still change yet if someone realises MS_TM and "ms_time_***"
344 aren't necessarily the greatest nomenclatures - but this is what was used
345 internally to the implementation so I've used that for now.
348 *) Ensure that deprecated functions do not get compiled when
349 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
350 the self-tests were still using deprecated key-generation functions so
351 these have been updated also.
354 *) Reorganise PKCS#7 code to separate the digest location functionality
355 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
356 New function PKCS7_set_digest() to set the digest type for PKCS#7
357 digestedData type. Add additional code to correctly generate the
358 digestedData type and add support for this type in PKCS7 initialization
362 *) New function PKCS7_set0_type_other() this initializes a PKCS7
363 structure of type "other".
366 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
367 sure the loop does correctly stop and breaking ("division by zero")
368 modulus operations are not performed. The (pre-generated) prime
369 table crypto/bn/bn_prime.h was already correct, but it could not be
370 re-generated on some platforms because of the "division by zero"
371 situation in the script.
372 [Ralf S. Engelschall]
374 *) Update support for ECC-based TLS ciphersuites according to
375 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
376 SHA-1 now is only used for "small" curves (where the
377 representation of a field element takes up to 24 bytes); for
378 larger curves, the field element resulting from ECDH is directly
379 used as premaster secret.
380 [Douglas Stebila (Sun Microsystems Laboratories)]
382 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
383 curve secp160r1 to the tests.
384 [Douglas Stebila (Sun Microsystems Laboratories)]
386 *) Add the possibility to load symbols globally with DSO.
387 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
389 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
390 control of the error stack.
393 *) Add support for STORE in ENGINE.
396 *) Add the STORE type. The intention is to provide a common interface
397 to certificate and key stores, be they simple file-based stores, or
398 HSM-type store, or LDAP stores, or...
399 NOTE: The code is currently UNTESTED and isn't really used anywhere.
402 *) Add a generic structure called OPENSSL_ITEM. This can be used to
403 pass a list of arguments to any function as well as provide a way
404 for a function to pass data back to the caller.
407 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
408 works like BUF_strdup() but can be used to duplicate a portion of
409 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
413 *) Add the function sk_find_ex() which works like sk_find(), but will
414 return an index to an element even if an exact match couldn't be
415 found. The index is guaranteed to point at the element where the
416 searched-for key would be inserted to preserve sorting order.
419 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
420 takes an extra flags argument for optional functionality. Currently,
421 the following flags are defined:
423 OBJ_BSEARCH_VALUE_ON_NOMATCH
424 This one gets OBJ_bsearch_ex() to return a pointer to the first
425 element where the comparing function returns a negative or zero
428 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
429 This one gets OBJ_bsearch_ex() to return a pointer to the first
430 element where the comparing function returns zero. This is useful
431 if there are more than one element where the comparing function
435 *) Make it possible to create self-signed certificates with 'openssl ca'
436 in such a way that the self-signed certificate becomes part of the
437 CA database and uses the same mechanisms for serial number generation
438 as all other certificate signing. The new flag '-selfsign' enables
439 this functionality. Adapt CA.sh and CA.pl.in.
442 *) Add functionality to check the public key of a certificate request
443 against a given private. This is useful to check that a certificate
444 request can be signed by that key (self-signing).
447 *) Make it possible to have multiple active certificates with the same
448 subject in the CA index file. This is done only if the keyword
449 'unique_subject' is set to 'no' in the main CA section (default
450 if 'CA_default') of the configuration file. The value is saved
451 with the database itself in a separate index attribute file,
452 named like the index file with '.attr' appended to the name.
455 *) Generate muti valued AVAs using '+' notation in config files for
459 *) Support for nameConstraints certificate extension.
462 *) Support for policyConstraints certificate extension.
465 *) Support for policyMappings certificate extension.
468 *) Make sure the default DSA_METHOD implementation only uses its
469 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
470 and change its own handlers to be NULL so as to remove unnecessary
471 indirection. This lets alternative implementations fallback to the
472 default implementation more easily.
475 *) Support for directoryName in GeneralName related extensions
479 *) Make it possible to link applications using Makefile.shared.
480 Make that possible even when linking against static libraries!
483 *) Support for single pass processing for S/MIME signing. This now
484 means that S/MIME signing can be done from a pipe, in addition
485 cleartext signing (multipart/signed type) is effectively streaming
486 and the signed data does not need to be all held in memory.
488 This is done with a new flag PKCS7_STREAM. When this flag is set
489 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
490 is done after the data is output (and digests calculated) in
494 *) Add full support for -rpath/-R, both in shared libraries and
495 applications, at least on the platforms where it's known how
499 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
500 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
501 will now compute a table of multiples of the generator that
502 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
503 faster (notably in the case of a single point multiplication,
505 [Nils Larsch, Bodo Moeller]
507 *) IPv6 support for certificate extensions. The various extensions
508 which use the IP:a.b.c.d can now take IPv6 addresses using the
509 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
513 *) Added an ENGINE that implements RSA by performing private key
514 exponentiations with the GMP library. The conversions to and from
515 GMP's mpz_t format aren't optimised nor are any montgomery forms
516 cached, and on x86 it appears OpenSSL's own performance has caught up.
517 However there are likely to be other architectures where GMP could
518 provide a boost. This ENGINE is not built in by default, but it can be
519 specified at Configure time and should be accompanied by the necessary
520 linker additions, eg;
521 ./config -DOPENSSL_USE_GMP -lgmp
524 *) "openssl engine" will not display ENGINE/DSO load failure errors when
525 testing availability of engines with "-t" - the old behaviour is
526 produced by increasing the feature's verbosity with "-tt".
529 *) ECDSA routines: under certain error conditions uninitialized BN objects
530 could be freed. Solution: make sure initialization is performed early
531 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
535 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
536 and DH_METHOD (eg. by ENGINE implementations) to override the normal
537 software implementations. For DSA and DH, parameter generation can
538 also be overriden by providing the appropriate method callbacks.
541 *) Change the "progress" mechanism used in key-generation and
542 primality testing to functions that take a new BN_GENCB pointer in
543 place of callback/argument pairs. The new API functions have "_ex"
544 postfixes and the older functions are reimplemented as wrappers for
545 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
546 declarations of the old functions to help (graceful) attempts to
547 migrate to the new functions. Also, the new key-generation API
548 functions operate on a caller-supplied key-structure and return
549 success/failure rather than returning a key or NULL - this is to
550 help make "keygen" another member function of RSA_METHOD etc.
552 Example for using the new callback interface:
554 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
558 BN_GENCB_set(&my_cb, my_callback, my_arg);
560 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
561 /* For the meaning of a, b in calls to my_callback(), see the
562 * documentation of the function that calls the callback.
563 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
564 * my_callback should return 1 if it wants BN_is_prime_ex()
565 * to continue, or 0 to stop.
570 *) Change the ZLIB compression method to be stateful, and make it
571 available to TLS with the number defined in
572 draft-ietf-tls-compression-04.txt.
575 *) Add the ASN.1 structures and functions for CertificatePair, which
576 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
578 CertificatePair ::= SEQUENCE {
579 forward [0] Certificate OPTIONAL,
580 reverse [1] Certificate OPTIONAL,
581 -- at least one of the pair shall be present -- }
583 Also implement the PEM functions to read and write certificate
584 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
586 This needed to be defined, mostly for the sake of the LDAP
587 attribute crossCertificatePair, but may prove useful elsewhere as
591 *) Make it possible to inhibit symlinking of shared libraries in
592 Makefile.shared, for Cygwin's sake.
595 *) Extend the BIGNUM API by creating a function
596 void BN_set_negative(BIGNUM *a, int neg);
597 and a macro that behave like
598 int BN_is_negative(const BIGNUM *a);
600 to avoid the need to access 'a->neg' directly in applications.
603 *) Implement fast modular reduction for pseudo-Mersenne primes
604 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
605 EC_GROUP_new_curve_GFp() will now automatically use this
607 [Nils Larsch <nla@trustcenter.de>]
609 *) Add new lock type (CRYPTO_LOCK_BN).
612 *) Change the ENGINE framework to automatically load engines
613 dynamically from specific directories unless they could be
614 found to already be built in or loaded. Move all the
615 current engines except for the cryptodev one to a new
617 The engines in engines/ are built as shared libraries if
618 the "shared" options was given to ./Configure or ./config.
619 Otherwise, they are inserted in libcrypto.a.
620 /usr/local/ssl/engines is the default directory for dynamic
621 engines, but that can be overriden at configure time through
622 the usual use of --prefix and/or --openssldir, and at run
623 time with the environment variable OPENSSL_ENGINES.
624 [Geoff Thorpe and Richard Levitte]
626 *) Add Makefile.shared, a helper makefile to build shared
627 libraries. Addapt Makefile.org.
630 *) Add version info to Win32 DLLs.
631 [Peter 'Luna' Runestig" <peter@runestig.com>]
633 *) Add new 'medium level' PKCS#12 API. Certificates and keys
634 can be added using this API to created arbitrary PKCS#12
635 files while avoiding the low level API.
637 New options to PKCS12_create(), key or cert can be NULL and
638 will then be omitted from the output file. The encryption
639 algorithm NIDs can be set to -1 for no encryption, the mac
640 iteration count can be set to 0 to omit the mac.
642 Enhance pkcs12 utility by making the -nokeys and -nocerts
643 options work when creating a PKCS#12 file. New option -nomac
644 to omit the mac, NONE can be set for an encryption algorithm.
645 New code is modified to use the enhanced PKCS12_create()
646 instead of the low level API.
649 *) Extend ASN1 encoder to support indefinite length constructed
650 encoding. This can output sequences tags and octet strings in
651 this form. Modify pk7_asn1.c to support indefinite length
652 encoding. This is experimental and needs additional code to
653 be useful, such as an ASN1 bio and some enhanced streaming
656 Extend template encode functionality so that tagging is passed
657 down to the template encoder.
660 *) Let 'openssl req' fail if an argument to '-newkey' is not
661 recognized instead of using RSA as a default.
664 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
665 As these are not official, they are not included in "ALL";
666 the "ECCdraft" ciphersuite group alias can be used to select them.
667 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
669 *) Add ECDH engine support.
670 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
672 *) Add ECDH in new directory crypto/ecdh/.
673 [Douglas Stebila (Sun Microsystems Laboratories)]
675 *) Let BN_rand_range() abort with an error after 100 iterations
676 without success (which indicates a broken PRNG).
679 *) Change BN_mod_sqrt() so that it verifies that the input value
680 is really the square of the return value. (Previously,
681 BN_mod_sqrt would show GIGO behaviour.)
684 *) Add named elliptic curves over binary fields from X9.62, SECG,
685 and WAP/WTLS; add OIDs that were still missing.
687 [Sheueling Chang Shantz and Douglas Stebila
688 (Sun Microsystems Laboratories)]
690 *) Extend the EC library for elliptic curves over binary fields
691 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
694 EC_GF2m_simple_method
698 EC_GROUP_new_curve_GF2m
699 EC_GROUP_set_curve_GF2m
700 EC_GROUP_get_curve_GF2m
701 EC_POINT_set_affine_coordinates_GF2m
702 EC_POINT_get_affine_coordinates_GF2m
703 EC_POINT_set_compressed_coordinates_GF2m
705 Point compression for binary fields is disabled by default for
706 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
709 As binary polynomials are represented as BIGNUMs, various members
710 of the EC_GROUP and EC_POINT data structures can be shared
711 between the implementations for prime fields and binary fields;
712 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
713 are essentially identical to their ..._GFp counterparts.
714 (For simplicity, the '..._GFp' prefix has been dropped from
715 various internal method names.)
717 An internal 'field_div' method (similar to 'field_mul' and
718 'field_sqr') has been added; this is used only for binary fields.
720 [Sheueling Chang Shantz and Douglas Stebila
721 (Sun Microsystems Laboratories)]
723 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
724 through methods ('mul', 'precompute_mult').
726 The generic implementations (now internally called 'ec_wNAF_mul'
727 and 'ec_wNAF_precomputed_mult') remain the default if these
728 methods are undefined.
730 [Sheueling Chang Shantz and Douglas Stebila
731 (Sun Microsystems Laboratories)]
733 *) New function EC_GROUP_get_degree, which is defined through
734 EC_METHOD. For curves over prime fields, this returns the bit
735 length of the modulus.
737 [Sheueling Chang Shantz and Douglas Stebila
738 (Sun Microsystems Laboratories)]
740 *) New functions EC_GROUP_dup, EC_POINT_dup.
741 (These simply call ..._new and ..._copy).
743 [Sheueling Chang Shantz and Douglas Stebila
744 (Sun Microsystems Laboratories)]
746 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
747 Polynomials are represented as BIGNUMs (where the sign bit is not
748 used) in the following functions [macros]:
751 BN_GF2m_sub [= BN_GF2m_add]
752 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
753 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
754 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
756 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
757 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
758 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
759 BN_GF2m_cmp [= BN_ucmp]
761 (Note that only the 'mod' functions are actually for fields GF(2^m).
762 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
764 For some functions, an the irreducible polynomial defining a
765 field can be given as an 'unsigned int[]' with strictly
766 decreasing elements giving the indices of those bits that are set;
767 i.e., p[] represents the polynomial
768 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
770 p[0] > p[1] > ... > p[k] = 0.
771 This applies to the following functions:
776 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
777 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
780 BN_GF2m_mod_solve_quad_arr
784 Conversion can be performed by the following functions:
789 bntest.c has additional tests for binary polynomial arithmetic.
791 Two implementations for BN_GF2m_mod_div() are available.
792 The default algorithm simply uses BN_GF2m_mod_inv() and
793 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
794 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
795 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
797 [Sheueling Chang Shantz and Douglas Stebila
798 (Sun Microsystems Laboratories)]
800 *) Add new error code 'ERR_R_DISABLED' that can be used when some
801 functionality is disabled at compile-time.
802 [Douglas Stebila <douglas.stebila@sun.com>]
804 *) Change default behaviour of 'openssl asn1parse' so that more
805 information is visible when viewing, e.g., a certificate:
807 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
808 mode the content of non-printable OCTET STRINGs is output in a
809 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
810 avoid the appearance of a printable string.
811 [Nils Larsch <nla@trustcenter.de>]
813 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
815 EC_GROUP_set_asn1_flag()
816 EC_GROUP_get_asn1_flag()
817 EC_GROUP_set_point_conversion_form()
818 EC_GROUP_get_point_conversion_form()
819 These control ASN1 encoding details:
820 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
821 has been set to OPENSSL_EC_NAMED_CURVE.
822 - Points are encoded in uncompressed form by default; options for
823 asn1_for are as for point2oct, namely
824 POINT_CONVERSION_COMPRESSED
825 POINT_CONVERSION_UNCOMPRESSED
826 POINT_CONVERSION_HYBRID
828 Also add 'seed' and 'seed_len' members to EC_GROUP with access
832 EC_GROUP_get_seed_len()
833 This is used only for ASN1 purposes (so far).
834 [Nils Larsch <nla@trustcenter.de>]
836 *) Add 'field_type' member to EC_METHOD, which holds the NID
837 of the appropriate field type OID. The new function
838 EC_METHOD_get_field_type() returns this value.
839 [Nils Larsch <nla@trustcenter.de>]
846 providing useful interfaces to EC_POINT_point2oct() and
847 EC_POINT_oct2point().
848 [Nils Larsch <nla@trustcenter.de>]
850 *) Change internals of the EC library so that the functions
851 EC_GROUP_set_generator()
852 EC_GROUP_get_generator()
854 EC_GROUP_get_cofactor()
855 are implemented directly in crypto/ec/ec_lib.c and not dispatched
856 to methods, which would lead to unnecessary code duplication when
857 adding different types of curves.
858 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
860 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
861 arithmetic, and such that modified wNAFs are generated
862 (which avoid length expansion in many cases).
865 *) Add a function EC_GROUP_check_discriminant() (defined via
866 EC_METHOD) that verifies that the curve discriminant is non-zero.
868 Add a function EC_GROUP_check() that makes some sanity tests
869 on a EC_GROUP, its generator and order. This includes
870 EC_GROUP_check_discriminant().
871 [Nils Larsch <nla@trustcenter.de>]
873 *) Add ECDSA in new directory crypto/ecdsa/.
875 Add applications 'openssl ecparam' and 'openssl ecdsa'
876 (these are based on 'openssl dsaparam' and 'openssl dsa').
878 ECDSA support is also included in various other files across the
879 library. Most notably,
880 - 'openssl req' now has a '-newkey ecdsa:file' option;
881 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
882 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
883 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
884 them suitable for ECDSA where domain parameters must be
885 extracted before the specific public key;
886 - ECDSA engine support has been added.
887 [Nils Larsch <nla@trustcenter.de>]
889 *) Include some named elliptic curves, and add OIDs from X9.62,
890 SECG, and WAP/WTLS. Each curve can be obtained from the new
892 EC_GROUP_new_by_curve_name(),
893 and the list of available named curves can be obtained with
894 EC_get_builtin_curves().
895 Also add a 'curve_name' member to EC_GROUP objects, which can be
897 EC_GROUP_set_curve_name()
898 EC_GROUP_get_curve_name()
899 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
901 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
902 was actually never needed) and in BN_mul(). The removal in BN_mul()
903 required a small change in bn_mul_part_recursive() and the addition
904 of the functions bn_cmp_part_words(), bn_sub_part_words() and
905 bn_add_part_words(), which do the same thing as bn_cmp_words(),
906 bn_sub_words() and bn_add_words() except they take arrays with
910 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
912 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
913 The value now differs depending on if you build for FIPS or not.
914 BEWARE! A program linked with a shared FIPSed libcrypto can't be
915 safely run with a non-FIPSed libcrypto, as it may crash because of
916 the difference induced by this change.
919 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
921 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
922 (part of SSL_OP_ALL). This option used to disable the
923 countermeasure against man-in-the-middle protocol-version
924 rollback in the SSL 2.0 server implementation, which is a bad
925 idea. (CVE-2005-2969)
927 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
928 for Information Security, National Institute of Advanced Industrial
929 Science and Technology [AIST], Japan)]
931 *) Minimal support for X9.31 signatures and PSS padding modes. This is
932 mainly for FIPS compliance and not fully integrated at this stage.
935 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
936 the exponentiation using a fixed-length exponent. (Otherwise,
937 the information leaked through timing could expose the secret key
938 after many signatures; cf. Bleichenbacher's attack on DSA with
942 *) Make a new fixed-window mod_exp implementation the default for
943 RSA, DSA, and DH private-key operations so that the sequence of
944 squares and multiplies and the memory access pattern are
945 independent of the particular secret key. This will mitigate
946 cache-timing and potential related attacks.
948 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
949 and this is automatically used by BN_mod_exp_mont() if the new flag
950 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
951 will use this BN flag for private exponents unless the flag
952 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
953 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
955 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
957 *) Change the client implementation for SSLv23_method() and
958 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
959 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
960 (Previously, the SSL 2.0 backwards compatible Client Hello
961 message format would be used even with SSL_OP_NO_SSLv2.)
964 *) Add support for smime-type MIME parameter in S/MIME messages which some
968 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
969 a threadsafe manner. Modify rsa code to use new function and add calls
970 to dsa and dh code (which had race conditions before).
973 *) Include the fixed error library code in the C error file definitions
974 instead of fixing them up at runtime. This keeps the error code
978 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
980 *) Fixes for newer kerberos headers. NB: the casts are needed because
981 the 'length' field is signed on one version and unsigned on another
982 with no (?) obvious way to tell the difference, without these VC++
983 complains. Also the "definition" of FAR (blank) is no longer included
984 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
985 some needed definitions.
988 *) Undo Cygwin change.
991 *) Added support for proxy certificates according to RFC 3820.
992 Because they may be a security thread to unaware applications,
993 they must be explicitely allowed in run-time. See
994 docs/HOWTO/proxy_certificates.txt for further information.
997 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
999 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1000 server and client random values. Previously
1001 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1002 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1004 This change has negligible security impact because:
1006 1. Server and client random values still have 24 bytes of pseudo random
1009 2. Server and client random values are sent in the clear in the initial
1012 3. The master secret is derived using the premaster secret (48 bytes in
1013 size for static RSA ciphersuites) as well as client server and random
1016 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1019 [Stephen Henson, reported by UK NISCC]
1021 *) Use Windows randomness collection on Cygwin.
1024 *) Fix hang in EGD/PRNGD query when communication socket is closed
1025 prematurely by EGD/PRNGD.
1026 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1028 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1031 *) Back-port of selected performance improvements from development
1032 branch, as well as improved support for PowerPC platforms.
1035 *) Add lots of checks for memory allocation failure, error codes to indicate
1036 failure and freeing up memory if a failure occurs.
1037 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1039 *) Add new -passin argument to dgst.
1042 *) Perform some character comparisons of different types in X509_NAME_cmp:
1043 this is needed for some certificates that reencode DNs into UTF8Strings
1044 (in violation of RFC3280) and can't or wont issue name rollover
1048 *) Make an explicit check during certificate validation to see that
1049 the CA setting in each certificate on the chain is correct. As a
1050 side effect always do the following basic checks on extensions,
1051 not just when there's an associated purpose to the check:
1053 - if there is an unhandled critical extension (unless the user
1054 has chosen to ignore this fault)
1055 - if the path length has been exceeded (if one is set at all)
1056 - that certain extensions fit the associated purpose (if one has
1060 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1062 *) Avoid a race condition when CRLs are checked in a multi threaded
1063 environment. This would happen due to the reordering of the revoked
1064 entries during signature checking and serial number lookup. Now the
1065 encoding is cached and the serial number sort performed under a lock.
1066 Add new STACK function sk_is_sorted().
1069 *) Add Delta CRL to the extension code.
1072 *) Various fixes to s3_pkt.c so alerts are sent properly.
1073 [David Holmes <d.holmes@f5.com>]
1075 *) Reduce the chances of duplicate issuer name and serial numbers (in
1076 violation of RFC3280) using the OpenSSL certificate creation utilities.
1077 This is done by creating a random 64 bit value for the initial serial
1078 number when a serial number file is created or when a self signed
1079 certificate is created using 'openssl req -x509'. The initial serial
1080 number file is created using 'openssl x509 -next_serial' in CA.pl
1081 rather than being initialized to 1.
1084 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1086 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1087 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1088 [Joe Orton, Steve Henson]
1090 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1092 [Joe Orton, Steve Henson]
1094 *) Make it possible to have multiple active certificates with the same
1095 subject in the CA index file. This is done only if the keyword
1096 'unique_subject' is set to 'no' in the main CA section (default
1097 if 'CA_default') of the configuration file. The value is saved
1098 with the database itself in a separate index attribute file,
1099 named like the index file with '.attr' appended to the name.
1102 *) X509 verify fixes. Disable broken certificate workarounds when
1103 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1104 keyUsage extension present. Don't accept CRLs with unhandled critical
1105 extensions: since verify currently doesn't process CRL extensions this
1106 rejects a CRL with *any* critical extensions. Add new verify error codes
1110 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1111 A clarification of RFC2560 will require the use of OCTET STRINGs and
1112 some implementations cannot handle the current raw format. Since OpenSSL
1113 copies and compares OCSP nonces as opaque blobs without any attempt at
1114 parsing them this should not create any compatibility issues.
1117 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1118 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1119 this HMAC (and other) operations are several times slower than OpenSSL
1123 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1124 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1126 *) Use the correct content when signing type "other".
1129 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1131 *) Fix various bugs revealed by running the NISCC test suite:
1133 Stop out of bounds reads in the ASN1 code when presented with
1134 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1136 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1138 If verify callback ignores invalid public key errors don't try to check
1139 certificate signature with the NULL public key.
1143 *) New -ignore_err option in ocsp application to stop the server
1144 exiting on the first error in a request.
1147 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1148 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1152 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1153 extra data after the compression methods not only for TLS 1.0
1154 but also for SSL 3.0 (as required by the specification).
1155 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1157 *) Change X509_certificate_type() to mark the key as exported/exportable
1158 when it's 512 *bits* long, not 512 bytes.
1161 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1162 blocks during encryption.
1165 *) Various fixes to base64 BIO and non blocking I/O. On write
1166 flushes were not handled properly if the BIO retried. On read
1167 data was not being buffered properly and had various logic bugs.
1168 This also affects blocking I/O when the data being decoded is a
1172 *) Various S/MIME bugfixes and compatibility changes:
1173 output correct application/pkcs7 MIME type if
1174 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1175 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1176 of files as .eml work). Correctly handle very long lines in MIME
1180 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1182 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1183 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1184 a protocol version number mismatch like a decryption error
1185 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1188 *) Turn on RSA blinding by default in the default implementation
1189 to avoid a timing attack. Applications that don't want it can call
1190 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1191 They would be ill-advised to do so in most cases.
1192 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1194 *) Change RSA blinding code so that it works when the PRNG is not
1195 seeded (in this case, the secret RSA exponent is abused as
1196 an unpredictable seed -- if it is not unpredictable, there
1197 is no point in blinding anyway). Make RSA blinding thread-safe
1198 by remembering the creator's thread ID in rsa->blinding and
1199 having all other threads use local one-time blinding factors
1200 (this requires more computation than sharing rsa->blinding, but
1201 avoids excessive locking; and if an RSA object is not shared
1202 between threads, blinding will still be very fast).
1205 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1206 ENGINE as defaults for all supported algorithms irrespective of
1207 the 'flags' parameter. 'flags' is now honoured, so applications
1208 should make sure they are passing it correctly.
1211 *) Target "mingw" now allows native Windows code to be generated in
1212 the Cygwin environment as well as with the MinGW compiler.
1215 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1217 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1218 via timing by performing a MAC computation even if incorrrect
1219 block cipher padding has been found. This is a countermeasure
1220 against active attacks where the attacker has to distinguish
1221 between bad padding and a MAC verification error. (CVE-2003-0078)
1223 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1224 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1225 Martin Vuagnoux (EPFL, Ilion)]
1227 *) Make the no-err option work as intended. The intention with no-err
1228 is not to have the whole error stack handling routines removed from
1229 libcrypto, it's only intended to remove all the function name and
1230 reason texts, thereby removing some of the footprint that may not
1231 be interesting if those errors aren't displayed anyway.
1233 NOTE: it's still possible for any application or module to have it's
1234 own set of error texts inserted. The routines are there, just not
1235 used by default when no-err is given.
1238 *) Add support for FreeBSD on IA64.
1239 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1241 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1242 Kerberos function mit_des_cbc_cksum(). Before this change,
1243 the value returned by DES_cbc_cksum() was like the one from
1244 mit_des_cbc_cksum(), except the bytes were swapped.
1245 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1247 *) Allow an application to disable the automatic SSL chain building.
1248 Before this a rather primitive chain build was always performed in
1249 ssl3_output_cert_chain(): an application had no way to send the
1250 correct chain if the automatic operation produced an incorrect result.
1252 Now the chain builder is disabled if either:
1254 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1256 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1258 The reasoning behind this is that an application would not want the
1259 auto chain building to take place if extra chain certificates are
1260 present and it might also want a means of sending no additional
1261 certificates (for example the chain has two certificates and the
1265 *) Add the possibility to build without the ENGINE framework.
1266 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1268 *) Under Win32 gmtime() can return NULL: check return value in
1269 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1272 *) DSA routines: under certain error conditions uninitialized BN objects
1273 could be freed. Solution: make sure initialization is performed early
1274 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1275 Nils Larsch <nla@trustcenter.de> via PR#459)
1278 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1279 checked on reconnect on the client side, therefore session resumption
1280 could still fail with a "ssl session id is different" error. This
1281 behaviour is masked when SSL_OP_ALL is used due to
1282 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1283 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1284 followup to PR #377.
1287 *) IA-32 assembler support enhancements: unified ELF targets, support
1288 for SCO/Caldera platforms, fix for Cygwin shared build.
1291 *) Add support for FreeBSD on sparc64. As a consequence, support for
1292 FreeBSD on non-x86 processors is separate from x86 processors on
1293 the config script, much like the NetBSD support.
1294 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1296 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1298 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1301 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1302 code (06) was taken as the first octet of the session ID and the last
1303 octet was ignored consequently. As a result SSLv2 client side session
1304 caching could not have worked due to the session ID mismatch between
1306 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1310 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1311 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1315 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1316 seems that in spite of existing for more than a year, many application
1317 author have done nothing to provide the necessary callbacks, which
1318 means that this particular engine will not work properly anywhere.
1319 This is a very unfortunate situation which forces us, in the name
1320 of usability, to give the hw_ncipher.c a static lock, which is part
1322 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1323 appear in 0.9.8 or later. We EXPECT application authors to have
1324 dealt properly with this when 0.9.8 is released (unless we actually
1325 make such changes in the libcrypto locking code that changes will
1326 have to be made anyway).
1329 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1330 octets have been read, EOF or an error occurs. Without this change
1331 some truncated ASN1 structures will not produce an error.
1334 *) Disable Heimdal support, since it hasn't been fully implemented.
1335 Still give the possibility to force the use of Heimdal, but with
1336 warnings and a request that patches get sent to openssl-dev.
1339 *) Add the VC-CE target, introduce the WINCE sysname, and add
1340 INSTALL.WCE and appropriate conditionals to make it build.
1341 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1343 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1344 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1345 edit numbers of the version.
1346 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1348 *) Introduce safe string copy and catenation functions
1349 (BUF_strlcpy() and BUF_strlcat()).
1350 [Ben Laurie (CHATS) and Richard Levitte]
1352 *) Avoid using fixed-size buffers for one-line DNs.
1353 [Ben Laurie (CHATS)]
1355 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1356 resizing buffers containing secrets, and use where appropriate.
1357 [Ben Laurie (CHATS)]
1359 *) Avoid using fixed size buffers for configuration file location.
1360 [Ben Laurie (CHATS)]
1362 *) Avoid filename truncation for various CA files.
1363 [Ben Laurie (CHATS)]
1365 *) Use sizeof in preference to magic numbers.
1366 [Ben Laurie (CHATS)]
1368 *) Avoid filename truncation in cert requests.
1369 [Ben Laurie (CHATS)]
1371 *) Add assertions to check for (supposedly impossible) buffer
1373 [Ben Laurie (CHATS)]
1375 *) Don't cache truncated DNS entries in the local cache (this could
1376 potentially lead to a spoofing attack).
1377 [Ben Laurie (CHATS)]
1379 *) Fix various buffers to be large enough for hex/decimal
1380 representations in a platform independent manner.
1381 [Ben Laurie (CHATS)]
1383 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1384 resizing buffers containing secrets, and use where appropriate.
1385 [Ben Laurie (CHATS)]
1387 *) Add BIO_indent() to avoid much slightly worrying code to do
1389 [Ben Laurie (CHATS)]
1391 *) Convert sprintf()/BIO_puts() to BIO_printf().
1392 [Ben Laurie (CHATS)]
1394 *) buffer_gets() could terminate with the buffer only half
1396 [Ben Laurie (CHATS)]
1398 *) Add assertions to prevent user-supplied crypto functions from
1399 overflowing internal buffers by having large block sizes, etc.
1400 [Ben Laurie (CHATS)]
1402 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1404 [Ben Laurie (CHATS)]
1406 *) Eliminate unused copy of key in RC4.
1407 [Ben Laurie (CHATS)]
1409 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1410 [Ben Laurie (CHATS)]
1412 *) Fix off-by-one error in EGD path.
1413 [Ben Laurie (CHATS)]
1415 *) If RANDFILE path is too long, ignore instead of truncating.
1416 [Ben Laurie (CHATS)]
1418 *) Eliminate unused and incorrectly sized X.509 structure
1420 [Ben Laurie (CHATS)]
1422 *) Eliminate unused and dangerous function knumber().
1423 [Ben Laurie (CHATS)]
1425 *) Eliminate unused and dangerous structure, KSSL_ERR.
1426 [Ben Laurie (CHATS)]
1428 *) Protect against overlong session ID context length in an encoded
1429 session object. Since these are local, this does not appear to be
1431 [Ben Laurie (CHATS)]
1433 *) Change from security patch (see 0.9.6e below) that did not affect
1434 the 0.9.6 release series:
1436 Remote buffer overflow in SSL3 protocol - an attacker could
1437 supply an oversized master key in Kerberos-enabled versions.
1439 [Ben Laurie (CHATS)]
1441 *) Change the SSL kerb5 codes to match RFC 2712.
1444 *) Make -nameopt work fully for req and add -reqopt switch.
1445 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1447 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1448 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1450 *) Make sure tests can be performed even if the corresponding algorithms
1451 have been removed entirely. This was also the last step to make
1452 OpenSSL compilable with DJGPP under all reasonable conditions.
1453 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1455 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1456 to allow version independent disabling of normally unselected ciphers,
1457 which may be activated as a side-effect of selecting a single cipher.
1459 (E.g., cipher list string "RSA" enables ciphersuites that are left
1460 out of "ALL" because they do not provide symmetric encryption.
1461 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1462 [Lutz Jaenicke, Bodo Moeller]
1464 *) Add appropriate support for separate platform-dependent build
1465 directories. The recommended way to make a platform-dependent
1466 build directory is the following (tested on Linux), maybe with
1469 # Place yourself outside of the OpenSSL source tree. In
1470 # this example, the environment variable OPENSSL_SOURCE
1471 # is assumed to contain the absolute OpenSSL source directory.
1472 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1473 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1474 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1475 mkdir -p `dirname $F`
1476 ln -s $OPENSSL_SOURCE/$F $F
1479 To be absolutely sure not to disturb the source tree, a "make clean"
1480 is a good thing. If it isn't successfull, don't worry about it,
1481 it probably means the source directory is very clean.
1484 *) Make sure any ENGINE control commands make local copies of string
1485 pointers passed to them whenever necessary. Otherwise it is possible
1486 the caller may have overwritten (or deallocated) the original string
1487 data when a later ENGINE operation tries to use the stored values.
1488 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1490 *) Improve diagnostics in file reading and command-line digests.
1491 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1493 *) Add AES modes CFB and OFB to the object database. Correct an
1494 error in AES-CFB decryption.
1497 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1498 allows existing EVP_CIPHER_CTX structures to be reused after
1499 calling EVP_*Final(). This behaviour is used by encryption
1500 BIOs and some applications. This has the side effect that
1501 applications must explicitly clean up cipher contexts with
1502 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1505 *) Check the values of dna and dnb in bn_mul_recursive before calling
1506 bn_mul_comba (a non zero value means the a or b arrays do not contain
1507 n2 elements) and fallback to bn_mul_normal if either is not zero.
1510 *) Fix escaping of non-ASCII characters when using the -subj option
1511 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1514 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1515 form for "surname", serialNumber has no short form.
1516 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1517 therefore remove "mail" short name for "internet 7".
1518 The OID for unique identifiers in X509 certificates is
1519 x500UniqueIdentifier, not uniqueIdentifier.
1520 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1523 *) Add an "init" command to the ENGINE config module and auto initialize
1524 ENGINEs. Without any "init" command the ENGINE will be initialized
1525 after all ctrl commands have been executed on it. If init=1 the
1526 ENGINE is initailized at that point (ctrls before that point are run
1527 on the uninitialized ENGINE and after on the initialized one). If
1528 init=0 then the ENGINE will not be iniatialized at all.
1531 *) Fix the 'app_verify_callback' interface so that the user-defined
1532 argument is actually passed to the callback: In the
1533 SSL_CTX_set_cert_verify_callback() prototype, the callback
1534 declaration has been changed from
1537 int (*cb)(X509_STORE_CTX *,void *);
1538 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1539 i=s->ctx->app_verify_callback(&ctx)
1540 has been changed into
1541 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1543 To update applications using SSL_CTX_set_cert_verify_callback(),
1544 a dummy argument can be added to their callback functions.
1545 [D. K. Smetters <smetters@parc.xerox.com>]
1547 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1548 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1550 *) Add and OPENSSL_LOAD_CONF define which will cause
1551 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1552 This allows older applications to transparently support certain
1553 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1554 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1555 load the config file and OPENSSL_add_all_algorithms_conf() which will
1556 always load it have also been added.
1559 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1560 Adjust NIDs and EVP layer.
1561 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1563 *) Config modules support in openssl utility.
1565 Most commands now load modules from the config file,
1566 though in a few (such as version) this isn't done
1567 because it couldn't be used for anything.
1569 In the case of ca and req the config file used is
1570 the same as the utility itself: that is the -config
1571 command line option can be used to specify an
1575 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1576 use "openssl_conf" if filename is NULL use default openssl config file.
1579 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1580 config section name. Add a new flag to tolerate a missing config file
1581 and move code to CONF_modules_load_file().
1584 *) Support for crypto accelerator cards from Accelerated Encryption
1585 Processing, www.aep.ie. (Use engine 'aep')
1586 The support was copied from 0.9.6c [engine] and adapted/corrected
1587 to work with the new engine framework.
1588 [AEP Inc. and Richard Levitte]
1590 *) Support for SureWare crypto accelerator cards from Baltimore
1591 Technologies. (Use engine 'sureware')
1592 The support was copied from 0.9.6c [engine] and adapted
1593 to work with the new engine framework.
1596 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1597 make the newer ENGINE framework commands for the CHIL engine work.
1598 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1600 *) Make it possible to produce shared libraries on ReliantUNIX.
1601 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1603 *) Add the configuration target debug-linux-ppro.
1604 Make 'openssl rsa' use the general key loading routines
1605 implemented in apps.c, and make those routines able to
1606 handle the key format FORMAT_NETSCAPE and the variant
1608 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1610 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1611 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1613 *) Add -keyform to rsautl, and document -engine.
1614 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1616 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1617 BIO_R_NO_SUCH_FILE error code rather than the generic
1618 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1621 *) Add new functions
1623 ERR_peek_last_error_line
1624 ERR_peek_last_error_line_data.
1625 These are similar to
1628 ERR_peek_error_line_data,
1629 but report on the latest error recorded rather than the first one
1630 still in the error queue.
1631 [Ben Laurie, Bodo Moeller]
1633 *) default_algorithms option in ENGINE config module. This allows things
1635 default_algorithms = ALL
1636 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1639 *) Prelminary ENGINE config module.
1642 *) New experimental application configuration code.
1645 *) Change the AES code to follow the same name structure as all other
1646 symmetric ciphers, and behave the same way. Move everything to
1647 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1648 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1650 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1651 [Ben Laurie and Theo de Raadt]
1653 *) Add option to output public keys in req command.
1654 [Massimiliano Pala madwolf@openca.org]
1656 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1657 (up to about 10% better than before for P-192 and P-224).
1660 *) New functions/macros
1662 SSL_CTX_set_msg_callback(ctx, cb)
1663 SSL_CTX_set_msg_callback_arg(ctx, arg)
1664 SSL_set_msg_callback(ssl, cb)
1665 SSL_set_msg_callback_arg(ssl, arg)
1667 to request calling a callback function
1669 void cb(int write_p, int version, int content_type,
1670 const void *buf, size_t len, SSL *ssl, void *arg)
1672 whenever a protocol message has been completely received
1673 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1674 protocol version according to which the SSL library interprets
1675 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1676 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1677 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1678 specification (change_cipher_spec(20), alert(21), handshake(22)).
1679 'buf' and 'len' point to the actual message, 'ssl' to the
1680 SSL object, and 'arg' is the application-defined value set by
1681 SSL[_CTX]_set_msg_callback_arg().
1683 'openssl s_client' and 'openssl s_server' have new '-msg' options
1684 to enable a callback that displays all protocol messages.
1687 *) Change the shared library support so shared libraries are built as
1688 soon as the corresponding static library is finished, and thereby get
1689 openssl and the test programs linked against the shared library.
1690 This still only happens when the keyword "shard" has been given to
1691 the configuration scripts.
1693 NOTE: shared library support is still an experimental thing, and
1694 backward binary compatibility is still not guaranteed.
1695 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1697 *) Add support for Subject Information Access extension.
1698 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1700 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1701 additional bytes when new memory had to be allocated, not just
1702 when reusing an existing buffer.
1705 *) New command line and configuration option 'utf8' for the req command.
1706 This allows field values to be specified as UTF8 strings.
1709 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1710 runs for the former and machine-readable output for the latter.
1713 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1714 of the e-mail address in the DN (i.e., it will go into a certificate
1715 extension only). The new configuration file option 'email_in_dn = no'
1716 has the same effect.
1717 [Massimiliano Pala madwolf@openca.org]
1719 *) Change all functions with names starting with des_ to be starting
1720 with DES_ instead. Add wrappers that are compatible with libdes,
1721 but are named _ossl_old_des_*. Finally, add macros that map the
1722 des_* symbols to the corresponding _ossl_old_des_* if libdes
1723 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1724 desired, the des_* symbols will be mapped to DES_*, with one
1727 Since we provide two compatibility mappings, the user needs to
1728 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1729 compatibility is desired. The default (i.e., when that macro
1730 isn't defined) is OpenSSL 0.9.6c compatibility.
1732 There are also macros that enable and disable the support of old
1733 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1734 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1735 are defined, the default will apply: to support the old des routines.
1737 In either case, one must include openssl/des.h to get the correct
1738 definitions. Do not try to just include openssl/des_old.h, that
1741 NOTE: This is a major break of an old API into a new one. Software
1742 authors are encouraged to switch to the DES_ style functions. Some
1743 time in the future, des_old.h and the libdes compatibility functions
1744 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1745 default), and then completely removed.
1748 *) Test for certificates which contain unsupported critical extensions.
1749 If such a certificate is found during a verify operation it is
1750 rejected by default: this behaviour can be overridden by either
1751 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1752 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1753 X509_supported_extension() has also been added which returns 1 if a
1754 particular extension is supported.
1757 *) Modify the behaviour of EVP cipher functions in similar way to digests
1758 to retain compatibility with existing code.
1761 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1762 compatibility with existing code. In particular the 'ctx' parameter does
1763 not have to be to be initialized before the call to EVP_DigestInit() and
1764 it is tidied up after a call to EVP_DigestFinal(). New function
1765 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1766 EVP_MD_CTX_copy() changed to not require the destination to be
1767 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1768 requires the destination to be valid.
1770 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1771 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1774 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1775 so that complete 'Handshake' protocol structures are kept in memory
1776 instead of overwriting 'msg_type' and 'length' with 'body' data.
1779 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1780 [Massimo Santin via Richard Levitte]
1782 *) Major restructuring to the underlying ENGINE code. This includes
1783 reduction of linker bloat, separation of pure "ENGINE" manipulation
1784 (initialisation, etc) from functionality dealing with implementations
1785 of specific crypto iterfaces. This change also introduces integrated
1786 support for symmetric ciphers and digest implementations - so ENGINEs
1787 can now accelerate these by providing EVP_CIPHER and EVP_MD
1788 implementations of their own. This is detailed in crypto/engine/README
1789 as it couldn't be adequately described here. However, there are a few
1790 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1791 were changed in the original introduction of ENGINE code have now
1792 reverted back - the hooking from this code to ENGINE is now a good
1793 deal more passive and at run-time, operations deal directly with
1794 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1795 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1796 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1797 they were not being used by the framework as there is no concept of a
1798 BIGNUM_METHOD and they could not be generalised to the new
1799 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1800 ENGINE_cpy() has been removed as it cannot be consistently defined in
1804 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1807 *) Change mkdef.pl to sort symbols that get the same entry number,
1808 and make sure the automatically generated functions ERR_load_*
1809 become part of libeay.num as well.
1812 *) New function SSL_renegotiate_pending(). This returns true once
1813 renegotiation has been requested (either SSL_renegotiate() call
1814 or HelloRequest/ClientHello receveived from the peer) and becomes
1815 false once a handshake has been completed.
1816 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1817 sends a HelloRequest, but does not ensure that a handshake takes
1818 place. SSL_renegotiate_pending() is useful for checking if the
1819 client has followed the request.)
1822 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1823 By default, clients may request session resumption even during
1824 renegotiation (if session ID contexts permit); with this option,
1825 session resumption is possible only in the first handshake.
1827 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1828 more bits available for options that should not be part of
1829 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1832 *) Add some demos for certificate and certificate request creation.
1835 *) Make maximum certificate chain size accepted from the peer application
1836 settable (SSL*_get/set_max_cert_list()), as proposed by
1837 "Douglas E. Engert" <deengert@anl.gov>.
1840 *) Add support for shared libraries for Unixware-7
1841 (Boyd Lynn Gerber <gerberb@zenez.com>).
1844 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1845 be done prior to destruction. Use this to unload error strings from
1846 ENGINEs that load their own error strings. NB: This adds two new API
1847 functions to "get" and "set" this destroy handler in an ENGINE.
1850 *) Alter all existing ENGINE implementations (except "openssl" and
1851 "openbsd") to dynamically instantiate their own error strings. This
1852 makes them more flexible to be built both as statically-linked ENGINEs
1853 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1854 Also, add stub code to each that makes building them as self-contained
1855 shared-libraries easier (see README.ENGINE).
1858 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1859 implementations into applications that are completely implemented in
1860 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1861 commands that can be used to configure what shared-library to load and
1862 to control aspects of the way it is handled. Also, made an update to
1863 the README.ENGINE file that brings its information up-to-date and
1864 provides some information and instructions on the "dynamic" ENGINE
1865 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1868 *) Make it possible to unload ranges of ERR strings with a new
1869 "ERR_unload_strings" function.
1872 *) Add a copy() function to EVP_MD.
1875 *) Make EVP_MD routines take a context pointer instead of just the
1876 md_data void pointer.
1879 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1880 that the digest can only process a single chunk of data
1881 (typically because it is provided by a piece of
1882 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1883 is only going to provide a single chunk of data, and hence the
1884 framework needn't accumulate the data for oneshot drivers.
1887 *) As with "ERR", make it possible to replace the underlying "ex_data"
1888 functions. This change also alters the storage and management of global
1889 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1890 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1891 index counters. The API functions that use this state have been changed
1892 to take a "class_index" rather than pointers to the class's local STACK
1893 and counter, and there is now an API function to dynamically create new
1894 classes. This centralisation allows us to (a) plug a lot of the
1895 thread-safety problems that existed, and (b) makes it possible to clean
1896 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1897 such data would previously have always leaked in application code and
1898 workarounds were in place to make the memory debugging turn a blind eye
1899 to it. Application code that doesn't use this new function will still
1900 leak as before, but their memory debugging output will announce it now
1901 rather than letting it slide.
1903 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1904 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1905 has a return value to indicate success or failure.
1908 *) Make it possible to replace the underlying "ERR" functions such that the
1909 global state (2 LHASH tables and 2 locks) is only used by the "default"
1910 implementation. This change also adds two functions to "get" and "set"
1911 the implementation prior to it being automatically set the first time
1912 any other ERR function takes place. Ie. an application can call "get",
1913 pass the return value to a module it has just loaded, and that module
1914 can call its own "set" function using that value. This means the
1915 module's "ERR" operations will use (and modify) the error state in the
1916 application and not in its own statically linked copy of OpenSSL code.
1919 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1920 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1921 the operation, and provides a more encapsulated way for external code
1922 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1923 to use these functions rather than manually incrementing the counts.
1925 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1928 *) Add EVP test program.
1931 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1934 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1935 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1936 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1937 These allow a CRL to be built without having to access X509_CRL fields
1938 directly. Modify 'ca' application to use new functions.
1941 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1942 bug workarounds. Rollback attack detection is a security feature.
1943 The problem will only arise on OpenSSL servers when TLSv1 is not
1944 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1945 Software authors not wanting to support TLSv1 will have special reasons
1946 for their choice and can explicitly enable this option.
1947 [Bodo Moeller, Lutz Jaenicke]
1949 *) Rationalise EVP so it can be extended: don't include a union of
1950 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1951 (similar to those existing for EVP_CIPHER_CTX).
1956 EVP_MD_CTX_init(&md); /* new function call */
1957 EVP_DigestInit(&md, EVP_sha1());
1958 EVP_DigestUpdate(&md, in, len);
1959 EVP_DigestFinal(&md, out, NULL);
1960 EVP_MD_CTX_cleanup(&md); /* new function call */
1964 *) Make DES key schedule conform to the usual scheme, as well as
1965 correcting its structure. This means that calls to DES functions
1966 now have to pass a pointer to a des_key_schedule instead of a
1967 plain des_key_schedule (which was actually always a pointer
1970 des_key_schedule ks;
1972 des_set_key_checked(..., &ks);
1973 des_ncbc_encrypt(..., &ks, ...);
1975 (Note that a later change renames 'des_...' into 'DES_...'.)
1978 *) Initial reduction of linker bloat: the use of some functions, such as
1979 PEM causes large amounts of unused functions to be linked in due to
1980 poor organisation. For example pem_all.c contains every PEM function
1981 which has a knock on effect of linking in large amounts of (unused)
1982 ASN1 code. Grouping together similar functions and splitting unrelated
1983 functions prevents this.
1986 *) Cleanup of EVP macros.
1989 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1990 correct _ecb suffix.
1993 *) Add initial OCSP responder support to ocsp application. The
1994 revocation information is handled using the text based index
1995 use by the ca application. The responder can either handle
1996 requests generated internally, supplied in files (for example
1997 via a CGI script) or using an internal minimal server.
2000 *) Add configuration choices to get zlib compression for TLS.
2003 *) Changes to Kerberos SSL for RFC 2712 compliance:
2004 1. Implemented real KerberosWrapper, instead of just using
2005 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2006 2. Implemented optional authenticator field of KerberosWrapper.
2008 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2009 and authenticator structs; see crypto/krb5/.
2011 Generalized Kerberos calls to support multiple Kerberos libraries.
2012 [Vern Staats <staatsvr@asc.hpc.mil>,
2013 Jeffrey Altman <jaltman@columbia.edu>
2014 via Richard Levitte]
2016 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2017 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2018 values for each of the key sizes rather than having just
2019 parameters (and 'speed' generating keys each time).
2022 *) Speed up EVP routines.
2025 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2026 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2027 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2028 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2030 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2031 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2032 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2035 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2037 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2040 *) Added the OS2-EMX target.
2041 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2043 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2044 to support NCONF routines in extension code. New function CONF_set_nconf()
2045 to allow functions which take an NCONF to also handle the old LHASH
2046 structure: this means that the old CONF compatible routines can be
2047 retained (in particular wrt extensions) without having to duplicate the
2048 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2051 *) Enhance the general user interface with mechanisms for inner control
2052 and with possibilities to have yes/no kind of prompts.
2055 *) Change all calls to low level digest routines in the library and
2056 applications to use EVP. Add missing calls to HMAC_cleanup() and
2057 don't assume HMAC_CTX can be copied using memcpy().
2058 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2060 *) Add the possibility to control engines through control names but with
2061 arbitrary arguments instead of just a string.
2062 Change the key loaders to take a UI_METHOD instead of a callback
2063 function pointer. NOTE: this breaks binary compatibility with earlier
2064 versions of OpenSSL [engine].
2065 Adapt the nCipher code for these new conditions and add a card insertion
2069 *) Enhance the general user interface with mechanisms to better support
2070 dialog box interfaces, application-defined prompts, the possibility
2071 to use defaults (for example default passwords from somewhere else)
2072 and interrupts/cancellations.
2075 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2076 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2079 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2080 tidy up some unnecessarily weird code in 'sk_new()').
2081 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2083 *) Change the key loading routines for ENGINEs to use the same kind
2084 callback (pem_password_cb) as all other routines that need this
2088 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2089 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2090 than this minimum value is recommended.
2093 *) New random seeder for OpenVMS, using the system process statistics
2094 that are easily reachable.
2097 *) Windows apparently can't transparently handle global
2098 variables defined in DLLs. Initialisations such as:
2100 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2102 wont compile. This is used by the any applications that need to
2103 declare their own ASN1 modules. This was fixed by adding the option
2104 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2105 needed for static libraries under Win32.
2108 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2109 setting of purpose and trust fields. New X509_STORE trust and
2110 purpose functions and tidy up setting in other SSL functions.
2113 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2114 structure. These are inherited by X509_STORE_CTX when it is
2115 initialised. This allows various defaults to be set in the
2116 X509_STORE structure (such as flags for CRL checking and custom
2117 purpose or trust settings) for functions which only use X509_STORE_CTX
2118 internally such as S/MIME.
2120 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2121 trust settings if they are not set in X509_STORE. This allows X509_STORE
2122 purposes and trust (in S/MIME for example) to override any set by default.
2124 Add command line options for CRL checking to smime, s_client and s_server
2128 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2129 are set then the CRL is looked up in the X509_STORE structure and
2130 its validity and signature checked, then if the certificate is found
2131 in the CRL the verify fails with a revoked error.
2133 Various new CRL related callbacks added to X509_STORE_CTX structure.
2135 Command line options added to 'verify' application to support this.
2137 This needs some additional work, such as being able to handle multiple
2138 CRLs with different times, extension based lookup (rather than just
2139 by subject name) and ultimately more complete V2 CRL extension
2143 *) Add a general user interface API (crypto/ui/). This is designed
2144 to replace things like des_read_password and friends (backward
2145 compatibility functions using this new API are provided).
2146 The purpose is to remove prompting functions from the DES code
2147 section as well as provide for prompting through dialog boxes in
2148 a window system and the like.
2151 *) Add "ex_data" support to ENGINE so implementations can add state at a
2152 per-structure level rather than having to store it globally.
2155 *) Make it possible for ENGINE structures to be copied when retrieved by
2156 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2157 This causes the "original" ENGINE structure to act like a template,
2158 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2159 operational state can be localised to each ENGINE structure, despite the
2160 fact they all share the same "methods". New ENGINE structures returned in
2161 this case have no functional references and the return value is the single
2162 structural reference. This matches the single structural reference returned
2163 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2167 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2168 needs to match any other type at all we need to manually clear the
2172 *) Changes to the "openssl engine" utility to include;
2173 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2174 about an ENGINE's available control commands.
2175 - executing control commands from command line arguments using the
2176 '-pre' and '-post' switches. '-post' is only used if '-t' is
2177 specified and the ENGINE is successfully initialised. The syntax for
2178 the individual commands are colon-separated, for example;
2179 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2182 *) New dynamic control command support for ENGINEs. ENGINEs can now
2183 declare their own commands (numbers), names (strings), descriptions,
2184 and input types for run-time discovery by calling applications. A
2185 subset of these commands are implicitly classed as "executable"
2186 depending on their input type, and only these can be invoked through
2187 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2188 can be based on user input, config files, etc). The distinction is
2189 that "executable" commands cannot return anything other than a boolean
2190 result and can only support numeric or string input, whereas some
2191 discoverable commands may only be for direct use through
2192 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2193 pointers, or other custom uses. The "executable" commands are to
2194 support parameterisations of ENGINE behaviour that can be
2195 unambiguously defined by ENGINEs and used consistently across any
2196 OpenSSL-based application. Commands have been added to all the
2197 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2198 control over shared-library paths without source code alterations.
2201 *) Changed all ENGINE implementations to dynamically allocate their
2202 ENGINEs rather than declaring them statically. Apart from this being
2203 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2204 this also allows the implementations to compile without using the
2205 internal engine_int.h header.
2208 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2209 'const' value. Any code that should be able to modify a RAND_METHOD
2210 should already have non-const pointers to it (ie. they should only
2211 modify their own ones).
2214 *) Made a variety of little tweaks to the ENGINE code.
2215 - "atalla" and "ubsec" string definitions were moved from header files
2216 to C code. "nuron" string definitions were placed in variables
2217 rather than hard-coded - allowing parameterisation of these values
2218 later on via ctrl() commands.
2219 - Removed unused "#if 0"'d code.
2220 - Fixed engine list iteration code so it uses ENGINE_free() to release
2221 structural references.
2222 - Constified the RAND_METHOD element of ENGINE structures.
2223 - Constified various get/set functions as appropriate and added
2224 missing functions (including a catch-all ENGINE_cpy that duplicates
2225 all ENGINE values onto a new ENGINE except reference counts/state).
2226 - Removed NULL parameter checks in get/set functions. Setting a method
2227 or function to NULL is a way of cancelling out a previously set
2228 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2229 and doesn't justify the extra error symbols and code.
2230 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2231 flags from engine_int.h to engine.h.
2232 - Changed prototypes for ENGINE handler functions (init(), finish(),
2233 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2236 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2237 to the algorithm using long division. The binary algorithm can be
2238 used only if the modulus is odd. On 32-bit systems, it is faster
2239 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2240 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2241 up to 450 bits. In 64-bit environments, the binary algorithm
2242 appears to be advantageous for much longer moduli; here we use it
2243 for moduli up to 2048 bits.
2246 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2247 could not support the combine flag in choice fields.
2250 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2251 extensions from a certificate request to the certificate.
2254 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2255 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2256 file: this allows the display of the certificate about to be
2257 signed to be customised, to allow certain fields to be included
2258 or excluded and extension details. The old system didn't display
2259 multicharacter strings properly, omitted fields not in the policy
2260 and couldn't display additional details such as extensions.
2263 *) Function EC_POINTs_mul for multiple scalar multiplication
2264 of an arbitrary number of elliptic curve points
2265 \sum scalars[i]*points[i],
2266 optionally including the generator defined for the EC_GROUP:
2267 scalar*generator + \sum scalars[i]*points[i].
2269 EC_POINT_mul is a simple wrapper function for the typical case
2270 that the point list has just one item (besides the optional
2274 *) First EC_METHODs for curves over GF(p):
2276 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2277 operations and provides various method functions that can also
2278 operate with faster implementations of modular arithmetic.
2280 EC_GFp_mont_method() reuses most functions that are part of
2281 EC_GFp_simple_method, but uses Montgomery arithmetic.
2283 [Bodo Moeller; point addition and point doubling
2284 implementation directly derived from source code provided by
2285 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2287 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2288 crypto/ec/ec_lib.c):
2290 Curves are EC_GROUP objects (with an optional group generator)
2291 based on EC_METHODs that are built into the library.
2293 Points are EC_POINT objects based on EC_GROUP objects.
2295 Most of the framework would be able to handle curves over arbitrary
2296 finite fields, but as there are no obvious types for fields other
2297 than GF(p), some functions are limited to that for now.
2300 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2301 that the file contains a complete HTTP response.
2304 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2305 change the def and num file printf format specifier from "%-40sXXX"
2306 to "%-39s XXX". The latter will always guarantee a space after the
2307 field while the former will cause them to run together if the field
2308 is 40 of more characters long.
2311 *) Constify the cipher and digest 'method' functions and structures
2312 and modify related functions to take constant EVP_MD and EVP_CIPHER
2316 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2317 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2320 *) Modify EVP_Digest*() routines so they now return values. Although the
2321 internal software routines can never fail additional hardware versions
2325 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2327 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2328 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2331 ERR_R_NESTED_ASN1_ERROR
2333 ERR_R_MISSING_ASN1_EOS
2334 were 4 .. 9, conflicting with
2335 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2337 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2338 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2340 Add new error code 'ERR_R_INTERNAL_ERROR'.
2343 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2347 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2348 sets the subject name for a new request or supersedes the
2349 subject name in a given request. Formats that can be parsed are
2350 'CN=Some Name, OU=myOU, C=IT'
2352 'CN=Some Name/OU=myOU/C=IT'.
2354 Add options '-batch' and '-verbose' to 'openssl req'.
2355 [Massimiliano Pala <madwolf@hackmasters.net>]
2357 *) Introduce the possibility to access global variables through
2358 functions on platform were that's the best way to handle exporting
2359 global variables in shared libraries. To enable this functionality,
2360 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2361 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2362 is normally done by Configure or something similar).
2364 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2365 in the source file (foo.c) like this:
2367 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2368 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2370 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2371 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2373 OPENSSL_DECLARE_GLOBAL(int,foo);
2374 #define foo OPENSSL_GLOBAL_REF(foo)
2375 OPENSSL_DECLARE_GLOBAL(double,bar);
2376 #define bar OPENSSL_GLOBAL_REF(bar)
2378 The #defines are very important, and therefore so is including the
2379 header file everywhere where the defined globals are used.
2381 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2382 of ASN.1 items, but that structure is a bit different.
2384 The largest change is in util/mkdef.pl which has been enhanced with
2385 better and easier to understand logic to choose which symbols should
2386 go into the Windows .def files as well as a number of fixes and code
2387 cleanup (among others, algorithm keywords are now sorted
2388 lexicographically to avoid constant rewrites).
2391 *) In BN_div() keep a copy of the sign of 'num' before writing the
2392 result to 'rm' because if rm==num the value will be overwritten
2393 and produce the wrong result if 'num' is negative: this caused
2394 problems with BN_mod() and BN_nnmod().
2397 *) Function OCSP_request_verify(). This checks the signature on an
2398 OCSP request and verifies the signer certificate. The signer
2399 certificate is just checked for a generic purpose and OCSP request
2403 *) Add OCSP_check_validity() function to check the validity of OCSP
2404 responses. OCSP responses are prepared in real time and may only
2405 be a few seconds old. Simply checking that the current time lies
2406 between thisUpdate and nextUpdate max reject otherwise valid responses
2407 caused by either OCSP responder or client clock inaccuracy. Instead
2408 we allow thisUpdate and nextUpdate to fall within a certain period of
2409 the current time. The age of the response can also optionally be
2410 checked. Two new options -validity_period and -status_age added to
2414 *) If signature or public key algorithm is unrecognized print out its
2415 OID rather that just UNKNOWN.
2418 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2419 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2420 ID to be generated from the issuer certificate alone which can then be
2421 passed to OCSP_id_issuer_cmp().
2424 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2425 ASN1 modules to export functions returning ASN1_ITEM pointers
2426 instead of the ASN1_ITEM structures themselves. This adds several
2427 new macros which allow the underlying ASN1 function/structure to
2428 be accessed transparently. As a result code should not use ASN1_ITEM
2429 references directly (such as &X509_it) but instead use the relevant
2430 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2431 use of the new ASN1 code on platforms where exporting structures
2432 is problematical (for example in shared libraries) but exporting
2433 functions returning pointers to structures is not.
2436 *) Add support for overriding the generation of SSL/TLS session IDs.
2437 These callbacks can be registered either in an SSL_CTX or per SSL.
2438 The purpose of this is to allow applications to control, if they wish,
2439 the arbitrary values chosen for use as session IDs, particularly as it
2440 can be useful for session caching in multiple-server environments. A
2441 command-line switch for testing this (and any client code that wishes
2442 to use such a feature) has been added to "s_server".
2443 [Geoff Thorpe, Lutz Jaenicke]
2445 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2446 of the form '#if defined(...) || defined(...) || ...' and
2447 '#if !defined(...) && !defined(...) && ...'. This also avoids
2448 the growing number of special cases it was previously handling.
2451 *) Make all configuration macros available for application by making
2452 sure they are available in opensslconf.h, by giving them names starting
2453 with "OPENSSL_" to avoid conflicts with other packages and by making
2454 sure e_os2.h will cover all platform-specific cases together with
2456 Additionally, it is now possible to define configuration/platform-
2457 specific names (called "system identities"). In the C code, these
2458 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2459 macro with the name beginning with "OPENSSL_SYS_", which is determined
2460 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2464 *) New option -set_serial to 'req' and 'x509' this allows the serial
2465 number to use to be specified on the command line. Previously self
2466 signed certificates were hard coded with serial number 0 and the
2467 CA options of 'x509' had to use a serial number in a file which was
2471 *) New options to 'ca' utility to support V2 CRL entry extensions.
2472 Currently CRL reason, invalidity date and hold instruction are
2473 supported. Add new CRL extensions to V3 code and some new objects.
2476 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2477 disable standard block padding (aka PKCS#5 padding) in the EVP
2478 API, which was previously mandatory. This means that the data is
2479 not padded in any way and so the total length much be a multiple
2480 of the block size, otherwise an error occurs.
2483 *) Initial (incomplete) OCSP SSL support.
2486 *) New function OCSP_parse_url(). This splits up a URL into its host,
2487 port and path components: primarily to parse OCSP URLs. New -url
2488 option to ocsp utility.
2491 *) New nonce behavior. The return value of OCSP_check_nonce() now
2492 reflects the various checks performed. Applications can decide
2493 whether to tolerate certain situations such as an absent nonce
2494 in a response when one was present in a request: the ocsp application
2495 just prints out a warning. New function OCSP_add1_basic_nonce()
2496 this is to allow responders to include a nonce in a response even if
2497 the request is nonce-less.
2500 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2501 skipped when using openssl x509 multiple times on a single input file,
2502 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2505 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2506 set string type: to handle setting ASN1_TIME structures. Fix ca
2507 utility to correctly initialize revocation date of CRLs.
2510 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2511 the clients preferred ciphersuites and rather use its own preferences.
2512 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2513 Internet Explorer by ensuring unchanged hash method during stepup.
2514 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2517 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2518 to aes and add a new 'exist' option to print out symbols that don't
2522 *) Additional options to ocsp utility to allow flags to be set and
2523 additional certificates supplied.
2526 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2527 OCSP client a number of certificate to only verify the response
2531 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2532 handle the new API. Currently only ECB, CBC modes supported. Add new
2535 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2536 Encryption Standard (AES) Ciphersuites for Transport Layer
2537 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2538 not enabled by default and were not part of the "ALL" ciphersuite
2539 alias because they were not yet official; they could be
2540 explicitly requested by specifying the "AESdraft" ciphersuite
2541 group alias. In the final release of OpenSSL 0.9.7, the group
2542 alias is called "AES" and is part of "ALL".)
2543 [Ben Laurie, Steve Henson, Bodo Moeller]
2545 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2546 request to response.
2549 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2550 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2551 extract information from a certificate request. OCSP_response_create()
2552 creates a response and optionally adds a basic response structure.
2553 OCSP_basic_add1_status() adds a complete single response to a basic
2554 response and returns the OCSP_SINGLERESP structure just added (to allow
2555 extensions to be included for example). OCSP_basic_add1_cert() adds a
2556 certificate to a basic response and OCSP_basic_sign() signs a basic
2557 response with various flags. New helper functions ASN1_TIME_check()
2558 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2559 (converts ASN1_TIME to GeneralizedTime).
2562 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2563 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2564 structure from a certificate. X509_pubkey_digest() digests the public_key
2565 contents: this is used in various key identifiers.
2568 *) Make sk_sort() tolerate a NULL argument.
2569 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2571 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2572 passed by the function are trusted implicitly. If any of them signed the
2573 response then it is assumed to be valid and is not verified.
2576 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2577 to data. This was previously part of the PKCS7 ASN1 code. This
2578 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2579 [Steve Henson, reported by Kenneth R. Robinette
2580 <support@securenetterm.com>]
2582 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2583 routines: without these tracing memory leaks is very painful.
2584 Fix leaks in PKCS12 and PKCS7 routines.
2587 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2588 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2589 effectively meant GeneralizedTime would never be used. Now it
2590 is initialised to -1 but X509_time_adj() now has to check the value
2591 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2592 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2593 [Steve Henson, reported by Kenneth R. Robinette
2594 <support@securenetterm.com>]
2596 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2597 result in a zero length in the ASN1_INTEGER structure which was
2598 not consistent with the structure when d2i_ASN1_INTEGER() was used
2599 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2600 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2601 where it did not print out a minus for negative ASN1_INTEGER.
2604 *) Add summary printout to ocsp utility. The various functions which
2605 convert status values to strings have been renamed to:
2606 OCSP_response_status_str(), OCSP_cert_status_str() and
2607 OCSP_crl_reason_str() and are no longer static. New options
2608 to verify nonce values and to disable verification. OCSP response
2609 printout format cleaned up.
2612 *) Add additional OCSP certificate checks. These are those specified
2613 in RFC2560. This consists of two separate checks: the CA of the
2614 certificate being checked must either be the OCSP signer certificate
2615 or the issuer of the OCSP signer certificate. In the latter case the
2616 OCSP signer certificate must contain the OCSP signing extended key
2617 usage. This check is performed by attempting to match the OCSP
2618 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2619 in the OCSP_CERTID structures of the response.
2622 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2623 and related routines. This uses the standard OpenSSL certificate
2624 verify routines to perform initial checks (just CA validity) and
2625 to obtain the certificate chain. Then additional checks will be
2626 performed on the chain. Currently the root CA is checked to see
2627 if it is explicitly trusted for OCSP signing. This is used to set
2628 a root CA as a global signing root: that is any certificate that
2629 chains to that CA is an acceptable OCSP signing certificate.
2632 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2633 extensions from a separate configuration file.
2634 As when reading extensions from the main configuration file,
2635 the '-extensions ...' option may be used for specifying the
2637 [Massimiliano Pala <madwolf@comune.modena.it>]
2639 *) New OCSP utility. Allows OCSP requests to be generated or
2640 read. The request can be sent to a responder and the output
2641 parsed, outputed or printed in text form. Not complete yet:
2642 still needs to check the OCSP response validity.
2645 *) New subcommands for 'openssl ca':
2646 'openssl ca -status <serial>' prints the status of the cert with
2647 the given serial number (according to the index file).
2648 'openssl ca -updatedb' updates the expiry status of certificates
2650 [Massimiliano Pala <madwolf@comune.modena.it>]
2652 *) New '-newreq-nodes' command option to CA.pl. This is like
2653 '-newreq', but calls 'openssl req' with the '-nodes' option
2654 so that the resulting key is not encrypted.
2655 [Damien Miller <djm@mindrot.org>]
2657 *) New configuration for the GNU Hurd.
2658 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2660 *) Initial code to implement OCSP basic response verify. This
2661 is currently incomplete. Currently just finds the signer's
2662 certificate and verifies the signature on the response.
2665 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2666 value of OPENSSLDIR. This is available via the new '-d' option
2667 to 'openssl version', and is also included in 'openssl version -a'.
2670 *) Allowing defining memory allocation callbacks that will be given
2671 file name and line number information in additional arguments
2672 (a const char* and an int). The basic functionality remains, as
2673 well as the original possibility to just replace malloc(),
2674 realloc() and free() by functions that do not know about these
2675 additional arguments. To register and find out the current
2676 settings for extended allocation functions, the following
2677 functions are provided:
2679 CRYPTO_set_mem_ex_functions
2680 CRYPTO_set_locked_mem_ex_functions
2681 CRYPTO_get_mem_ex_functions
2682 CRYPTO_get_locked_mem_ex_functions
2684 These work the same way as CRYPTO_set_mem_functions and friends.
2685 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2686 extended allocation function is enabled.
2687 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2688 a conventional allocation function is enabled.
2689 [Richard Levitte, Bodo Moeller]
2691 *) Finish off removing the remaining LHASH function pointer casts.
2692 There should no longer be any prototype-casting required when using
2693 the LHASH abstraction, and any casts that remain are "bugs". See
2694 the callback types and macros at the head of lhash.h for details
2695 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2698 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2699 If /dev/[u]random devices are not available or do not return enough
2700 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2702 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2703 /etc/entropy will be queried once each in this sequence, quering stops
2704 when enough entropy was collected without querying more sockets.
2707 *) Change the Unix RAND_poll() variant to be able to poll several
2708 random devices, as specified by DEVRANDOM, until a sufficient amount
2709 of data has been collected. We spend at most 10 ms on each file
2710 (select timeout) and read in non-blocking mode. DEVRANDOM now
2711 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2712 (previously it was just the string "/dev/urandom"), so on typical
2713 platforms the 10 ms delay will never occur.
2714 Also separate out the Unix variant to its own file, rand_unix.c.
2715 For VMS, there's a currently-empty rand_vms.c.
2718 *) Move OCSP client related routines to ocsp_cl.c. These
2719 provide utility functions which an application needing
2720 to issue a request to an OCSP responder and analyse the
2721 response will typically need: as opposed to those which an
2722 OCSP responder itself would need which will be added later.
2724 OCSP_request_sign() signs an OCSP request with an API similar
2725 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2726 response. OCSP_response_get1_basic() extracts basic response
2727 from response. OCSP_resp_find_status(): finds and extracts status
2728 information from an OCSP_CERTID structure (which will be created
2729 when the request structure is built). These are built from lower
2730 level functions which work on OCSP_SINGLERESP structures but
2731 wont normally be used unless the application wishes to examine
2732 extensions in the OCSP response for example.
2734 Replace nonce routines with a pair of functions.
2735 OCSP_request_add1_nonce() adds a nonce value and optionally
2736 generates a random value. OCSP_check_nonce() checks the
2737 validity of the nonce in an OCSP response.
2740 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2741 This doesn't copy the supplied OCSP_CERTID and avoids the
2742 need to free up the newly created id. Change return type
2743 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2744 This can then be used to add extensions to the request.
2745 Deleted OCSP_request_new(), since most of its functionality
2746 is now in OCSP_REQUEST_new() (and the case insensitive name
2747 clash) apart from the ability to set the request name which
2748 will be added elsewhere.
2751 *) Update OCSP API. Remove obsolete extensions argument from
2752 various functions. Extensions are now handled using the new
2753 OCSP extension code. New simple OCSP HTTP function which
2754 can be used to send requests and parse the response.
2757 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2758 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2759 uses the special reorder version of SET OF to sort the attributes
2760 and reorder them to match the encoded order. This resolves a long
2761 standing problem: a verify on a PKCS7 structure just after signing
2762 it used to fail because the attribute order did not match the
2763 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2764 it uses the received order. This is necessary to tolerate some broken
2765 software that does not order SET OF. This is handled by encoding
2766 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2767 to produce the required SET OF.
2770 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2771 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2772 files to get correct declarations of the ASN.1 item variables.
2775 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2776 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2777 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2778 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2779 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2780 ASN1_ITEM and no wrapper functions.
2783 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2784 replace the old function pointer based I/O routines. Change most of
2785 the *_d2i_bio() and *_d2i_fp() functions to use these.
2788 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2789 lines, recognice more "algorithms" that can be deselected, and make
2790 it complain about algorithm deselection that isn't recognised.
2793 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2794 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2795 to use new functions. Add NO_ASN1_OLD which can be set to remove
2796 some old style ASN1 functions: this can be used to determine if old
2797 code will still work when these eventually go away.
2800 *) New extension functions for OCSP structures, these follow the
2801 same conventions as certificates and CRLs.
2804 *) New function X509V3_add1_i2d(). This automatically encodes and
2805 adds an extension. Its behaviour can be customised with various
2806 flags to append, replace or delete. Various wrappers added for
2807 certifcates and CRLs.
2810 *) Fix to avoid calling the underlying ASN1 print routine when
2811 an extension cannot be parsed. Correct a typo in the
2812 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2815 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2816 entries for variables.
2819 *) Add functionality to apps/openssl.c for detecting locking
2820 problems: As the program is single-threaded, all we have
2821 to do is register a locking callback using an array for
2822 storing which locks are currently held by the program.
2825 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2826 SSL_get_ex_data_X509_STORE_idx(), which is used in
2827 ssl_verify_cert_chain() and thus can be called at any time
2828 during TLS/SSL handshakes so that thread-safety is essential.
2829 Unfortunately, the ex_data design is not at all suited
2830 for multi-threaded use, so it probably should be abolished.
2833 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2834 [Broadcom, tweaked and integrated by Geoff Thorpe]
2836 *) Move common extension printing code to new function
2837 X509V3_print_extensions(). Reorganise OCSP print routines and
2838 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2841 *) New function X509_signature_print() to remove duplication in some
2845 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2846 set (this was treated exactly the same as SET OF previously). This
2847 is used to reorder the STACK representing the structure to match the
2848 encoding. This will be used to get round a problem where a PKCS7
2849 structure which was signed could not be verified because the STACK
2850 order did not reflect the encoded order.
2853 *) Reimplement the OCSP ASN1 module using the new code.
2856 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2857 for its ASN1 operations. The old style function pointers still exist
2858 for now but they will eventually go away.
2861 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2862 completely replaces the old ASN1 functionality with a table driven
2863 encoder and decoder which interprets an ASN1_ITEM structure describing
2864 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2865 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2866 has also been converted to the new form.
2869 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2870 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2871 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2872 for negative moduli.
2875 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2876 of not touching the result's sign bit.
2879 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2883 *) Changed the LHASH code to use prototypes for callbacks, and created
2884 macros to declare and implement thin (optionally static) functions
2885 that provide type-safety and avoid function pointer casting for the
2886 type-specific callbacks.
2889 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2891 [Veers Staats <staatsvr@asc.hpc.mil>,
2892 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2894 *) Reformat the FAQ so the different questions and answers can be divided
2895 in sections depending on the subject.
2898 *) Have the zlib compression code load ZLIB.DLL dynamically under
2902 *) New function BN_mod_sqrt for computing square roots modulo a prime
2903 (using the probabilistic Tonelli-Shanks algorithm unless
2904 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2905 be handled deterministically).
2906 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2908 *) Make BN_mod_inverse faster by explicitly handling small quotients
2909 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2910 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2913 *) New function BN_kronecker.
2916 *) Fix BN_gcd so that it works on negative inputs; the result is
2917 positive unless both parameters are zero.
2918 Previously something reasonably close to an infinite loop was
2919 possible because numbers could be growing instead of shrinking
2920 in the implementation of Euclid's algorithm.
2923 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2924 sign of the number in question.
2926 Fix BN_is_word(a,w) to work correctly for w == 0.
2928 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2929 because its test if the absolute value of 'a' equals 'w'.
2930 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2931 it exists mostly for use in the implementations of BN_is_zero(),
2932 BN_is_one(), and BN_is_word().
2935 *) New function BN_swap.
2938 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2939 the exponentiation functions are more likely to produce reasonable
2940 results on negative inputs.
2943 *) Change BN_mod_mul so that the result is always non-negative.
2944 Previously, it could be negative if one of the factors was negative;
2945 I don't think anyone really wanted that behaviour.
2948 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2949 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2950 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2951 and add new functions:
2960 BN_mod_lshift1_quick
2964 These functions always generate non-negative results.
2966 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2967 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2969 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2970 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2971 be reduced modulo m.
2972 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2975 The following entry accidentily appeared in the CHANGES file
2976 distributed with OpenSSL 0.9.7. The modifications described in
2977 it do *not* apply to OpenSSL 0.9.7.
2979 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2980 was actually never needed) and in BN_mul(). The removal in BN_mul()
2981 required a small change in bn_mul_part_recursive() and the addition
2982 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2983 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2984 bn_sub_words() and bn_add_words() except they take arrays with
2989 *) In 'openssl passwd', verify passwords read from the terminal
2990 unless the '-salt' option is used (which usually means that
2991 verification would just waste user's time since the resulting
2992 hash is going to be compared with some given password hash)
2993 or the new '-noverify' option is used.
2995 This is an incompatible change, but it does not affect
2996 non-interactive use of 'openssl passwd' (passwords on the command
2997 line, '-stdin' option, '-in ...' option) and thus should not
3001 *) Remove all references to RSAref, since there's no more need for it.
3004 *) Make DSO load along a path given through an environment variable
3005 (SHLIB_PATH) with shl_load().
3008 *) Constify the ENGINE code as a result of BIGNUM constification.
3009 Also constify the RSA code and most things related to it. In a
3010 few places, most notable in the depth of the ASN.1 code, ugly
3011 casts back to non-const were required (to be solved at a later
3015 *) Make it so the openssl application has all engines loaded by default.
3018 *) Constify the BIGNUM routines a little more.
3021 *) Add the following functions:
3023 ENGINE_load_cswift()
3025 ENGINE_load_atalla()
3027 ENGINE_load_builtin_engines()
3029 That way, an application can itself choose if external engines that
3030 are built-in in OpenSSL shall ever be used or not. The benefit is
3031 that applications won't have to be linked with libdl or other dso
3032 libraries unless it's really needed.
3034 Changed 'openssl engine' to load all engines on demand.
3035 Changed the engine header files to avoid the duplication of some
3036 declarations (they differed!).
3039 *) 'openssl engine' can now list capabilities.
3042 *) Better error reporting in 'openssl engine'.
3045 *) Never call load_dh_param(NULL) in s_server.
3048 *) Add engine application. It can currently list engines by name and
3049 identity, and test if they are actually available.
3052 *) Improve RPM specification file by forcing symbolic linking and making
3053 sure the installed documentation is also owned by root.root.
3054 [Damien Miller <djm@mindrot.org>]
3056 *) Give the OpenSSL applications more possibilities to make use of
3057 keys (public as well as private) handled by engines.
3060 *) Add OCSP code that comes from CertCo.
3063 *) Add VMS support for the Rijndael code.
3066 *) Added untested support for Nuron crypto accelerator.
3069 *) Add support for external cryptographic devices. This code was
3070 previously distributed separately as the "engine" branch.
3071 [Geoff Thorpe, Richard Levitte]
3073 *) Rework the filename-translation in the DSO code. It is now possible to
3074 have far greater control over how a "name" is turned into a filename
3075 depending on the operating environment and any oddities about the
3076 different shared library filenames on each system.
3079 *) Support threads on FreeBSD-elf in Configure.
3082 *) Fix for SHA1 assembly problem with MASM: it produces
3083 warnings about corrupt line number information when assembling
3084 with debugging information. This is caused by the overlapping
3086 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3089 NCONF_get_number() has no error checking at all. As a replacement,
3090 NCONF_get_number_e() is defined (_e for "error checking") and is
3091 promoted strongly. The old NCONF_get_number is kept around for
3092 binary backward compatibility.
3093 Make it possible for methods to load from something other than a BIO,
3094 by providing a function pointer that is given a name instead of a BIO.
3095 For example, this could be used to load configuration data from an
3099 *) Fix for non blocking accept BIOs. Added new I/O special reason
3100 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3101 with non blocking I/O was not possible because no retry code was
3102 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3106 *) Added the beginnings of Rijndael support.
3109 *) Fix for bug in DirectoryString mask setting. Add support for
3110 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3111 to allow certificate printing to more controllable, additional
3112 'certopt' option to 'x509' to allow new printing options to be
3116 *) Clean old EAY MD5 hack from e_os.h.
3119 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3121 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3122 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3123 [Joe Orton, Steve Henson]
3125 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3127 *) Fix additional bug revealed by the NISCC test suite:
3129 Stop bug triggering large recursion when presented with
3130 certain ASN.1 tags (CVE-2003-0851)
3133 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3135 *) Fix various bugs revealed by running the NISCC test suite:
3137 Stop out of bounds reads in the ASN1 code when presented with
3138 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3140 If verify callback ignores invalid public key errors don't try to check
3141 certificate signature with the NULL public key.
3145 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3146 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3150 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3151 extra data after the compression methods not only for TLS 1.0
3152 but also for SSL 3.0 (as required by the specification).
3153 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3155 *) Change X509_certificate_type() to mark the key as exported/exportable
3156 when it's 512 *bits* long, not 512 bytes.
3159 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3161 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3162 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3163 a protocol version number mismatch like a decryption error
3164 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3167 *) Turn on RSA blinding by default in the default implementation
3168 to avoid a timing attack. Applications that don't want it can call
3169 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3170 They would be ill-advised to do so in most cases.
3171 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3173 *) Change RSA blinding code so that it works when the PRNG is not
3174 seeded (in this case, the secret RSA exponent is abused as
3175 an unpredictable seed -- if it is not unpredictable, there
3176 is no point in blinding anyway). Make RSA blinding thread-safe
3177 by remembering the creator's thread ID in rsa->blinding and
3178 having all other threads use local one-time blinding factors
3179 (this requires more computation than sharing rsa->blinding, but
3180 avoids excessive locking; and if an RSA object is not shared
3181 between threads, blinding will still be very fast).
3184 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3186 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3187 via timing by performing a MAC computation even if incorrrect
3188 block cipher padding has been found. This is a countermeasure
3189 against active attacks where the attacker has to distinguish
3190 between bad padding and a MAC verification error. (CVE-2003-0078)
3192 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3193 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3194 Martin Vuagnoux (EPFL, Ilion)]
3196 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3198 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3199 memory from it's contents. This is done with a counter that will
3200 place alternating values in each byte. This can be used to solve
3201 two issues: 1) the removal of calls to memset() by highly optimizing
3202 compilers, and 2) cleansing with other values than 0, since those can
3203 be read through on certain media, for example a swap space on disk.
3206 *) Bugfix: client side session caching did not work with external caching,
3207 because the session->cipher setting was not restored when reloading
3208 from the external cache. This problem was masked, when
3209 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3210 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3213 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3214 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3215 [Zeev Lieber <zeev-l@yahoo.com>]
3217 *) Undo an undocumented change introduced in 0.9.6e which caused
3218 repeated calls to OpenSSL_add_all_ciphers() and
3219 OpenSSL_add_all_digests() to be ignored, even after calling
3223 *) Change the default configuration reader to deal with last line not
3224 being properly terminated.
3227 *) Change X509_NAME_cmp() so it applies the special rules on handling
3228 DN values that are of type PrintableString, as well as RDNs of type
3229 emailAddress where the value has the type ia5String.
3230 [stefank@valicert.com via Richard Levitte]
3232 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3233 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3234 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3235 the bitwise-OR of the two for use by the majority of applications
3236 wanting this behaviour, and update the docs. The documented
3237 behaviour and actual behaviour were inconsistent and had been
3238 changing anyway, so this is more a bug-fix than a behavioural
3240 [Geoff Thorpe, diagnosed by Nadav Har'El]
3242 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3243 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3246 *) Fix initialization code race conditions in
3247 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3248 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3249 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3250 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3251 ssl2_get_cipher_by_char(),
3252 ssl3_get_cipher_by_char().
3253 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3255 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3256 the cached sessions are flushed, as the remove_cb() might use ex_data
3257 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3258 (see [openssl.org #212]).
3259 [Geoff Thorpe, Lutz Jaenicke]
3261 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3262 length, instead of the encoding length to d2i_ASN1_OBJECT.
3265 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3267 *) [In 0.9.6g-engine release:]
3268 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3269 [Lynn Gazis <lgazis@rainbow.com>]
3271 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3273 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3274 and get fix the header length calculation.
3275 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3276 Alon Kantor <alonk@checkpoint.com> (and others),
3279 *) Use proper error handling instead of 'assertions' in buffer
3280 overflow checks added in 0.9.6e. This prevents DoS (the
3281 assertions could call abort()).
3282 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3284 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3286 *) Add various sanity checks to asn1_get_length() to reject
3287 the ASN1 length bytes if they exceed sizeof(long), will appear
3288 negative or the content length exceeds the length of the
3290 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3292 *) Fix cipher selection routines: ciphers without encryption had no flags
3293 for the cipher strength set and where therefore not handled correctly
3294 by the selection routines (PR #130).
3297 *) Fix EVP_dsa_sha macro.
3301 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3302 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3303 that was added in OpenSSL 0.9.6d.
3305 As the countermeasure turned out to be incompatible with some
3306 broken SSL implementations, the new option is part of SSL_OP_ALL.
3307 SSL_OP_ALL is usually employed when compatibility with weird SSL
3308 implementations is desired (e.g. '-bugs' option to 's_client' and
3309 's_server'), so the new option is automatically set in many
3313 *) Changes in security patch:
3315 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3316 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3317 Air Force Materiel Command, USAF, under agreement number
3320 *) Add various sanity checks to asn1_get_length() to reject
3321 the ASN1 length bytes if they exceed sizeof(long), will appear
3322 negative or the content length exceeds the length of the
3323 supplied buffer. (CVE-2002-0659)
3324 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3326 *) Assertions for various potential buffer overflows, not known to
3328 [Ben Laurie (CHATS)]
3330 *) Various temporary buffers to hold ASCII versions of integers were
3331 too small for 64 bit platforms. (CVE-2002-0655)
3332 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3334 *) Remote buffer overflow in SSL3 protocol - an attacker could
3335 supply an oversized session ID to a client. (CVE-2002-0656)
3336 [Ben Laurie (CHATS)]
3338 *) Remote buffer overflow in SSL2 protocol - an attacker could
3339 supply an oversized client master key. (CVE-2002-0656)
3340 [Ben Laurie (CHATS)]
3342 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3344 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3345 encoded as NULL) with id-dsa-with-sha1.
3346 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3348 *) Check various X509_...() return values in apps/req.c.
3349 [Nils Larsch <nla@trustcenter.de>]
3351 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3352 an end-of-file condition would erronously be flagged, when the CRLF
3353 was just at the end of a processed block. The bug was discovered when
3354 processing data through a buffering memory BIO handing the data to a
3355 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3356 <ptsekov@syntrex.com> and Nedelcho Stanev.
3359 *) Implement a countermeasure against a vulnerability recently found
3360 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3361 before application data chunks to avoid the use of known IVs
3362 with data potentially chosen by the attacker.
3365 *) Fix length checks in ssl3_get_client_hello().
3368 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3369 to prevent ssl3_read_internal() from incorrectly assuming that
3370 ssl3_read_bytes() found application data while handshake
3371 processing was enabled when in fact s->s3->in_read_app_data was
3372 merely automatically cleared during the initial handshake.
3373 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3375 *) Fix object definitions for Private and Enterprise: they were not
3376 recognized in their shortname (=lowercase) representation. Extend
3377 obj_dat.pl to issue an error when using undefined keywords instead
3378 of silently ignoring the problem (Svenning Sorensen
3379 <sss@sss.dnsalias.net>).
3382 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3383 generators, i.e. generators other than 2 and 5. (Previously, the
3384 code did not properly initialise the 'add' and 'rem' values to
3385 BN_generate_prime().)
3387 In the new general case, we do not insist that 'generator' is
3388 actually a primitive root: This requirement is rather pointless;
3389 a generator of the order-q subgroup is just as good, if not
3393 *) Map new X509 verification errors to alerts. Discovered and submitted by
3394 Tom Wu <tom@arcot.com>.
3397 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3398 returning non-zero before the data has been completely received
3399 when using non-blocking I/O.
3400 [Bodo Moeller; problem pointed out by John Hughes]
3402 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3403 [Ben Laurie, Lutz Jaenicke]
3405 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3406 Yoram Zahavi <YoramZ@gilian.com>).
3409 *) Add information about CygWin 1.3 and on, and preserve proper
3410 configuration for the versions before that.
3411 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3413 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3414 check whether we deal with a copy of a session and do not delete from
3415 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3416 <izhar@checkpoint.com>.
3419 *) Do not store session data into the internal session cache, if it
3420 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3421 flag is set). Proposed by Aslam <aslam@funk.com>.
3424 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3428 *) [In 0.9.6d-engine release:]
3429 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3430 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3432 *) Add the configuration target linux-s390x.
3433 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3435 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3436 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3437 variable as an indication that a ClientHello message has been
3438 received. As the flag value will be lost between multiple
3439 invocations of ssl3_accept when using non-blocking I/O, the
3440 function may not be aware that a handshake has actually taken
3441 place, thus preventing a new session from being added to the
3444 To avoid this problem, we now set s->new_session to 2 instead of
3445 using a local variable.
3446 [Lutz Jaenicke, Bodo Moeller]
3448 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3449 if the SSL_R_LENGTH_MISMATCH error is detected.
3450 [Geoff Thorpe, Bodo Moeller]
3452 *) New 'shared_ldflag' column in Configure platform table.
3455 *) Fix EVP_CIPHER_mode macro.
3456 ["Dan S. Camper" <dan@bti.net>]
3458 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3459 type, we must throw them away by setting rr->length to 0.
3460 [D P Chang <dpc@qualys.com>]
3462 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3464 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3465 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3466 worked incorrectly for those cases where range = 10..._2 and
3467 3*range is two bits longer than range.)
3470 *) Only add signing time to PKCS7 structures if it is not already
3474 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3475 OBJ_ld_ce should be OBJ_id_ce.
3476 Also some ip-pda OIDs in crypto/objects/objects.txt were
3477 incorrect (cf. RFC 3039).
3478 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3480 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3481 returns early because it has nothing to do.
3482 [Andy Schneider <andy.schneider@bjss.co.uk>]
3484 *) [In 0.9.6c-engine release:]
3485 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3486 [Andy Schneider <andy.schneider@bjss.co.uk>]
3488 *) [In 0.9.6c-engine release:]
3489 Add support for Cryptographic Appliance's keyserver technology.
3490 (Use engine 'keyclient')
3491 [Cryptographic Appliances and Geoff Thorpe]
3493 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3494 is called via tools/c89.sh because arguments have to be
3495 rearranged (all '-L' options must appear before the first object
3497 [Richard Shapiro <rshapiro@abinitio.com>]
3499 *) [In 0.9.6c-engine release:]
3500 Add support for Broadcom crypto accelerator cards, backported
3502 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3504 *) [In 0.9.6c-engine release:]
3505 Add support for SureWare crypto accelerator cards from
3506 Baltimore Technologies. (Use engine 'sureware')
3507 [Baltimore Technologies and Mark Cox]
3509 *) [In 0.9.6c-engine release:]
3510 Add support for crypto accelerator cards from Accelerated
3511 Encryption Processing, www.aep.ie. (Use engine 'aep')
3512 [AEP Inc. and Mark Cox]
3514 *) Add a configuration entry for gcc on UnixWare.
3515 [Gary Benson <gbenson@redhat.com>]
3517 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3518 messages are stored in a single piece (fixed-length part and
3519 variable-length part combined) and fix various bugs found on the way.
3522 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3523 instead. BIO_gethostbyname() does not know what timeouts are
3524 appropriate, so entries would stay in cache even when they have
3526 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3528 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3529 faced with a pathologically small ClientHello fragment that does
3530 not contain client_version: Instead of aborting with an error,
3531 simply choose the highest available protocol version (i.e.,
3532 TLS 1.0 unless it is disabled). In practice, ClientHello
3533 messages are never sent like this, but this change gives us
3534 strictly correct behaviour at least for TLS.
3537 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3538 never resets s->method to s->ctx->method when called from within
3539 one of the SSL handshake functions.
3540 [Bodo Moeller; problem pointed out by Niko Baric]
3542 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3543 (sent using the client's version number) if client_version is
3544 smaller than the protocol version in use. Also change
3545 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3546 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3547 the client will at least see that alert.
3550 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3554 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3555 client receives HelloRequest while in a handshake.
3556 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3558 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3559 should end in 'break', not 'goto end' which circuments various
3560 cleanups done in state SSL_ST_OK. But session related stuff
3561 must be disabled for SSL_ST_OK in the case that we just sent a
3564 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3565 before just sending a HelloRequest.
3566 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3568 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3569 reveal whether illegal block cipher padding was found or a MAC
3570 verification error occured. (Neither SSLerr() codes nor alerts
3571 are directly visible to potential attackers, but the information
3572 may leak via logfiles.)
3574 Similar changes are not required for the SSL 2.0 implementation
3575 because the number of padding bytes is sent in clear for SSL 2.0,
3576 and the extra bytes are just ignored. However ssl/s2_pkt.c
3577 failed to verify that the purported number of padding bytes is in
3581 *) Add OpenUNIX-8 support including shared libraries
3582 (Boyd Lynn Gerber <gerberb@zenez.com>).
3585 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3586 'wristwatch attack' using huge encoding parameters (cf.
3587 James H. Manger's CRYPTO 2001 paper). Note that the
3588 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3589 encoding parameters and hence was not vulnerable.
3592 *) BN_sqr() bug fix.
3593 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3595 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3596 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3597 followed by modular reduction.
3598 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3600 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3601 equivalent based on BN_pseudo_rand() instead of BN_rand().
3604 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3605 This function was broken, as the check for a new client hello message
3606 to handle SGC did not allow these large messages.
3607 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3610 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3613 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3614 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3617 *) Rework the configuration and shared library support for Tru64 Unix.
3618 The configuration part makes use of modern compiler features and
3619 still retains old compiler behavior for those that run older versions
3620 of the OS. The shared library support part includes a variant that
3621 uses the RPATH feature, and is available through the special
3622 configuration target "alpha-cc-rpath", which will never be selected
3624 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3626 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3627 with the same message size as in ssl3_get_certificate_request().
3628 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3629 messages might inadvertently be reject as too long.
3630 [Petr Lampa <lampa@fee.vutbr.cz>]
3632 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3635 *) Modified SSL library such that the verify_callback that has been set
3636 specificly for an SSL object with SSL_set_verify() is actually being
3637 used. Before the change, a verify_callback set with this function was
3638 ignored and the verify_callback() set in the SSL_CTX at the time of
3639 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3640 to allow the necessary settings.
3643 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3644 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3645 done automatically (in contradiction to the requirements of the C
3646 standard). This made problems when used from OpenSSH.
3649 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3650 dh->length and always used
3652 BN_rand_range(priv_key, dh->p).
3654 BN_rand_range() is not necessary for Diffie-Hellman, and this
3655 specific range makes Diffie-Hellman unnecessarily inefficient if
3656 dh->length (recommended exponent length) is much smaller than the
3657 length of dh->p. We could use BN_rand_range() if the order of
3658 the subgroup was stored in the DH structure, but we only have
3663 BN_rand(priv_key, l, ...)
3665 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3671 RSA_eay_public_encrypt
3672 RSA_eay_private_decrypt
3673 RSA_eay_private_encrypt (signing)
3674 RSA_eay_public_decrypt (signature verification)
3676 (default implementations for RSA_public_encrypt,
3677 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3678 always reject numbers >= n.
3681 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3682 to synchronize access to 'locking_thread'. This is necessary on
3683 systems where access to 'locking_thread' (an 'unsigned long'
3684 variable) is not atomic.
3687 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3688 *before* setting the 'crypto_lock_rand' flag. The previous code had
3689 a race condition if 0 is a valid thread ID.
3690 [Travis Vitek <vitek@roguewave.com>]
3692 *) Add support for shared libraries under Irix.
3693 [Albert Chin-A-Young <china@thewrittenword.com>]
3695 *) Add configuration option to build on Linux on both big-endian and
3697 [Ralf Baechle <ralf@uni-koblenz.de>]
3699 *) Add the possibility to create shared libraries on HP-UX.
3702 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3704 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3705 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3706 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3707 PRNG state recovery was possible based on the output of
3708 one PRNG request appropriately sized to gain knowledge on
3709 'md' followed by enough consecutive 1-byte PRNG requests
3710 to traverse all of 'state'.
3712 1. When updating 'md_local' (the current thread's copy of 'md')
3713 during PRNG output generation, hash all of the previous
3714 'md_local' value, not just the half used for PRNG output.
3716 2. Make the number of bytes from 'state' included into the hash
3717 independent from the number of PRNG bytes requested.
3719 The first measure alone would be sufficient to avoid
3720 Markku-Juhani's attack. (Actually it had never occurred
3721 to me that the half of 'md_local' used for chaining was the
3722 half from which PRNG output bytes were taken -- I had always
3723 assumed that the secret half would be used.) The second
3724 measure makes sure that additional data from 'state' is never
3725 mixed into 'md_local' in small portions; this heuristically
3726 further strengthens the PRNG.
3729 *) Fix crypto/bn/asm/mips3.s.
3732 *) When only the key is given to "enc", the IV is undefined. Print out
3733 an error message in this case.
3736 *) Handle special case when X509_NAME is empty in X509 printing routines.
3739 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3740 positive and less than q.
3743 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3744 used: it isn't thread safe and the add_lock_callback should handle
3746 [Paul Rose <Paul.Rose@bridge.com>]
3748 *) Verify that incoming data obeys the block size in
3749 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3753 [Ulf Möller, Bodo Möller]
3755 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3756 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3757 when fixing the server behaviour for backwards-compatible 'client
3758 hello' messages. (Note that the attack is impractical against
3759 SSL 3.0 and TLS 1.0 anyway because length and version checking
3760 means that the probability of guessing a valid ciphertext is
3761 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3764 Before 0.9.5, the countermeasure (hide the error by generating a
3765 random 'decryption result') did not work properly because
3766 ERR_clear_error() was missing, meaning that SSL_get_error() would
3767 detect the supposedly ignored error.
3769 Both problems are now fixed.
3772 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3773 (previously it was 1024).
3776 *) Fix for compatibility mode trust settings: ignore trust settings
3777 unless some valid trust or reject settings are present.
3780 *) Fix for blowfish EVP: its a variable length cipher.
3783 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3784 parameters in DSA public key structures and return an error in the
3785 DSA routines if parameters are absent.
3788 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3789 in the current directory if neither $RANDFILE nor $HOME was set.
3790 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3791 caused some confusion to Windows users who haven't defined $HOME.
3792 Thus RAND_file_name() is changed again: e_os.h can define a
3793 DEFAULT_HOME, which will be used if $HOME is not set.
3794 For Windows, we use "C:"; on other platforms, we still require
3795 environment variables.
3797 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3798 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3799 having multiple threads call RAND_poll() concurrently.
3802 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3803 combination of a flag and a thread ID variable.
3804 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3805 flag), *other* threads can enter ssleay_add_bytes without obeying
3806 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3807 that they do not hold after the first thread unsets add_do_not_lock).
3810 *) Change bctest again: '-x' expressions are not available in all
3814 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3816 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3817 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3819 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3820 the default extension for executables, if any. Also, make the perl
3821 scripts that use symlink() to test if it really exists and use "cp"
3822 if it doesn't. All this made OpenSSL compilable and installable in
3826 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3827 If SEQUENCE is length is indefinite just set c->slen to the total
3828 amount of data available.
3829 [Steve Henson, reported by shige@FreeBSD.org]
3830 [This change does not apply to 0.9.7.]
3832 *) Change bctest to avoid here-documents inside command substitution
3833 (workaround for FreeBSD /bin/sh bug).
3834 For compatibility with Ultrix, avoid shell functions (introduced
3835 in the bctest version that searches along $PATH).
3838 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3839 with des_encrypt() defined on some operating systems, like Solaris
3843 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3844 On the Importance of Eliminating Errors in Cryptographic
3845 Computations, J. Cryptology 14 (2001) 2, 101-119,
3846 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3849 *) MIPS assembler BIGNUM division bug fix.
3852 *) Disabled incorrect Alpha assembler code.
3855 *) Fix PKCS#7 decode routines so they correctly update the length
3856 after reading an EOC for the EXPLICIT tag.
3858 [This change does not apply to 0.9.7.]
3860 *) Fix bug in PKCS#12 key generation routines. This was triggered
3861 if a 3DES key was generated with a 0 initial byte. Include
3862 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3863 (but broken) behaviour.
3866 *) Enhance bctest to search for a working bc along $PATH and print
3868 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3870 *) Fix memory leaks in err.c: free err_data string if necessary;
3871 don't write to the wrong index in ERR_set_error_data.
3874 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3878 *) Replace rdtsc with _emit statements for VC++ version 5.
3879 [Jeremy Cooper <jeremy@baymoo.org>]
3881 *) Make it possible to reuse SSLv2 sessions.
3884 *) In copy_email() check for >= 0 as a return value for
3885 X509_NAME_get_index_by_NID() since 0 is a valid index.
3886 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3888 *) Avoid coredump with unsupported or invalid public keys by checking if
3889 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3890 PKCS7_verify() fails with non detached data.
3893 *) Don't use getenv in library functions when run as setuid/setgid.
3894 New function OPENSSL_issetugid().
3897 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3898 due to incorrect handling of multi-threading:
3900 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3902 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3904 3. Count how many times MemCheck_off() has been called so that
3905 nested use can be treated correctly. This also avoids
3906 inband-signalling in the previous code (which relied on the
3907 assumption that thread ID 0 is impossible).
3910 *) Add "-rand" option also to s_client and s_server.
3913 *) Fix CPU detection on Irix 6.x.
3914 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3915 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3917 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3920 [This change does not apply to 0.9.7.]
3922 *) Use the cached encoding of an X509_NAME structure rather than
3923 copying it. This is apparently the reason for the libsafe "errors"
3924 but the code is actually correct.
3927 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3928 Bleichenbacher's DSA attack.
3929 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3930 to be set and top=0 forces the highest bit to be set; top=-1 is new
3931 and leaves the highest bit random.
3932 [Ulf Moeller, Bodo Moeller]
3934 *) In the NCONF_...-based implementations for CONF_... queries
3935 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3936 a temporary CONF structure with the data component set to NULL
3937 (which gives segmentation faults in lh_retrieve).
3938 Instead, use NULL for the CONF pointer in CONF_get_string and
3939 CONF_get_number (which may use environment variables) and directly
3940 return NULL from CONF_get_section.
3943 *) Fix potential buffer overrun for EBCDIC.
3946 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3947 keyUsage if basicConstraints absent for a CA.
3950 *) Make SMIME_write_PKCS7() write mail header values with a format that
3951 is more generally accepted (no spaces before the semicolon), since
3952 some programs can't parse those values properly otherwise. Also make
3953 sure BIO's that break lines after each write do not create invalid
3957 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3958 macros previously used would not encode an empty SEQUENCE OF
3959 and break the signature.
3961 [This change does not apply to 0.9.7.]
3963 *) Zero the premaster secret after deriving the master secret in
3967 *) Add some EVP_add_digest_alias registrations (as found in
3968 OpenSSL_add_all_digests()) to SSL_library_init()
3969 aka OpenSSL_add_ssl_algorithms(). This provides improved
3970 compatibility with peers using X.509 certificates
3971 with unconventional AlgorithmIdentifier OIDs.
3974 *) Fix for Irix with NO_ASM.
3975 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3977 *) ./config script fixes.
3978 [Ulf Moeller, Richard Levitte]
3980 *) Fix 'openssl passwd -1'.
3983 *) Change PKCS12_key_gen_asc() so it can cope with non null
3984 terminated strings whose length is passed in the passlen
3985 parameter, for example from PEM callbacks. This was done
3986 by adding an extra length parameter to asc2uni().
3987 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3989 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3990 call failed, free the DSA structure.
3993 *) Fix to uni2asc() to cope with zero length Unicode strings.
3994 These are present in some PKCS#12 files.
3997 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3998 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3999 when writing a 32767 byte record.
4000 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4002 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4003 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4005 (RSA objects have a reference count access to which is protected
4006 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4007 so they are meant to be shared between threads.)
4008 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4009 "Reddie, Steven" <Steven.Reddie@ca.com>]
4011 *) Fix a deadlock in CRYPTO_mem_leaks().
4014 *) Use better test patterns in bntest.
4017 *) rand_win.c fix for Borland C.
4020 *) BN_rshift bugfix for n == 0.
4023 *) Add a 'bctest' script that checks for some known 'bc' bugs
4024 so that 'make test' does not abort just because 'bc' is broken.
4027 *) Store verify_result within SSL_SESSION also for client side to
4028 avoid potential security hole. (Re-used sessions on the client side
4029 always resulted in verify_result==X509_V_OK, not using the original
4030 result of the server certificate verification.)
4033 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4034 SSL3_RT_APPLICATION_DATA, return 0.
4035 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4039 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4040 releases, have been re-implemented by renaming the previous
4041 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4042 and ssl3_read_internal, respectively, and adding 'peek' parameters
4043 to them. The new ssl[23]_{read,peek} functions are calls to
4044 ssl[23]_read_internal with the 'peek' flag set appropriately.
4045 A 'peek' parameter has also been added to ssl3_read_bytes, which
4046 does the actual work for ssl3_read_internal.
4049 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4050 the method-specific "init()" handler. Also clean up ex_data after
4051 calling the method-specific "finish()" handler. Previously, this was
4052 happening the other way round.
4055 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4056 The previous value, 12, was not always sufficient for BN_mod_exp().
4059 *) Make sure that shared libraries get the internal name engine with
4060 the full version number and not just 0. This should mark the
4061 shared libraries as not backward compatible. Of course, this should
4062 be changed again when we can guarantee backward binary compatibility.
4065 *) Fix typo in get_cert_by_subject() in by_dir.c
4066 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4068 *) Rework the system to generate shared libraries:
4070 - Make note of the expected extension for the shared libraries and
4071 if there is a need for symbolic links from for example libcrypto.so.0
4072 to libcrypto.so.0.9.7. There is extended info in Configure for
4075 - Make as few rebuilds of the shared libraries as possible.
4077 - Still avoid linking the OpenSSL programs with the shared libraries.
4079 - When installing, install the shared libraries separately from the
4083 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4085 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4086 and not in SSL_clear because the latter is also used by the
4087 accept/connect functions; previously, the settings made by
4088 SSL_set_read_ahead would be lost during the handshake.
4089 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4091 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4092 Previously, it would create entries for disableed algorithms no
4096 *) Added several new manual pages for SSL_* function.
4099 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4101 *) In ssl23_get_client_hello, generate an error message when faced
4102 with an initial SSL 3.0/TLS record that is too small to contain the
4103 first two bytes of the ClientHello message, i.e. client_version.
4104 (Note that this is a pathologic case that probably has never happened
4105 in real life.) The previous approach was to use the version number
4106 from the record header as a substitute; but our protocol choice
4107 should not depend on that one because it is not authenticated
4108 by the Finished messages.
4111 *) More robust randomness gathering functions for Windows.
4112 [Jeffrey Altman <jaltman@columbia.edu>]
4114 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4115 not set then we don't setup the error code for issuer check errors
4116 to avoid possibly overwriting other errors which the callback does
4117 handle. If an application does set the flag then we assume it knows
4118 what it is doing and can handle the new informational codes
4122 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4123 a general "ANY" type, as such it should be able to decode anything
4124 including tagged types. However it didn't check the class so it would
4125 wrongly interpret tagged types in the same way as their universal
4126 counterpart and unknown types were just rejected. Changed so that the
4127 tagged and unknown types are handled in the same way as a SEQUENCE:
4128 that is the encoding is stored intact. There is also a new type
4129 "V_ASN1_OTHER" which is used when the class is not universal, in this
4130 case we have no idea what the actual type is so we just lump them all
4134 *) On VMS, stdout may very well lead to a file that is written to
4135 in a record-oriented fashion. That means that every write() will
4136 write a separate record, which will be read separately by the
4137 programs trying to read from it. This can be very confusing.
4139 The solution is to put a BIO filter in the way that will buffer
4140 text until a linefeed is reached, and then write everything a
4141 line at a time, so every record written will be an actual line,
4142 not chunks of lines and not (usually doesn't happen, but I've
4143 seen it once) several lines in one record. BIO_f_linebuffer() is
4146 Currently, it's a VMS-only method, because that's where it has
4147 been tested well enough.
4150 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4151 it can return incorrect results.
4152 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4153 but it was in 0.9.6-beta[12].)
4156 *) Disable the check for content being present when verifying detached
4157 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4158 include zero length content when signing messages.
4161 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4162 BIO_ctrl (for BIO pairs).
4165 *) Add DSO method for VMS.
4168 *) Bug fix: Montgomery multiplication could produce results with the
4172 *) Add RPM specification openssl.spec and modify it to build three
4173 packages. The default package contains applications, application
4174 documentation and run-time libraries. The devel package contains
4175 include files, static libraries and function documentation. The
4176 doc package contains the contents of the doc directory. The original
4177 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4180 *) Add a large number of documentation files for many SSL routines.
4181 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4183 *) Add a configuration entry for Sony News 4.
4184 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4186 *) Don't set the two most significant bits to one when generating a
4187 random number < q in the DSA library.
4190 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4191 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4192 the underlying transport is blocking) if a handshake took place.
4193 (The default behaviour is needed by applications such as s_client
4194 and s_server that use select() to determine when to use SSL_read;
4195 but for applications that know in advance when to expect data, it
4196 just makes things more complicated.)
4199 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4203 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4204 work better on such systems.
4205 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4207 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4208 Update PKCS12_parse() so it copies the friendlyName and the
4209 keyid to the certificates aux info.
4212 *) Fix bug in PKCS7_verify() which caused an infinite loop
4213 if there was more than one signature.
4214 [Sven Uszpelkat <su@celocom.de>]
4216 *) Major change in util/mkdef.pl to include extra information
4217 about each symbol, as well as presentig variables as well
4218 as functions. This change means that there's n more need
4219 to rebuild the .num files when some algorithms are excluded.
4222 *) Allow the verify time to be set by an application,
4223 rather than always using the current time.
4226 *) Phase 2 verify code reorganisation. The certificate
4227 verify code now looks up an issuer certificate by a
4228 number of criteria: subject name, authority key id
4229 and key usage. It also verifies self signed certificates
4230 by the same criteria. The main comparison function is
4231 X509_check_issued() which performs these checks.
4233 Lot of changes were necessary in order to support this
4234 without completely rewriting the lookup code.
4236 Authority and subject key identifier are now cached.
4238 The LHASH 'certs' is X509_STORE has now been replaced
4239 by a STACK_OF(X509_OBJECT). This is mainly because an
4240 LHASH can't store or retrieve multiple objects with
4241 the same hash value.
4243 As a result various functions (which were all internal
4244 use only) have changed to handle the new X509_STORE
4245 structure. This will break anything that messed round
4246 with X509_STORE internally.
4248 The functions X509_STORE_add_cert() now checks for an
4249 exact match, rather than just subject name.
4251 The X509_STORE API doesn't directly support the retrieval
4252 of multiple certificates matching a given criteria, however
4253 this can be worked round by performing a lookup first
4254 (which will fill the cache with candidate certificates)
4255 and then examining the cache for matches. This is probably
4256 the best we can do without throwing out X509_LOOKUP
4257 entirely (maybe later...).
4259 The X509_VERIFY_CTX structure has been enhanced considerably.
4261 All certificate lookup operations now go via a get_issuer()
4262 callback. Although this currently uses an X509_STORE it
4263 can be replaced by custom lookups. This is a simple way
4264 to bypass the X509_STORE hackery necessary to make this
4265 work and makes it possible to use more efficient techniques
4266 in future. A very simple version which uses a simple
4267 STACK for its trusted certificate store is also provided
4268 using X509_STORE_CTX_trusted_stack().
4270 The verify_cb() and verify() callbacks now have equivalents
4271 in the X509_STORE_CTX structure.
4273 X509_STORE_CTX also has a 'flags' field which can be used
4274 to customise the verify behaviour.
4277 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4278 excludes S/MIME capabilities.
4281 *) When a certificate request is read in keep a copy of the
4282 original encoding of the signed data and use it when outputing
4283 again. Signatures then use the original encoding rather than
4284 a decoded, encoded version which may cause problems if the
4285 request is improperly encoded.
4288 *) For consistency with other BIO_puts implementations, call
4289 buffer_write(b, ...) directly in buffer_puts instead of calling
4292 In BIO_puts, increment b->num_write as in BIO_write.
4293 [Peter.Sylvester@EdelWeb.fr]
4295 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4296 BN_zero, we may not return a BIGNUM with an array consisting of
4300 *) Avoid calling abort() from within the library when problems are
4301 detected, except if preprocessor symbols have been defined
4302 (such as REF_CHECK, BN_DEBUG etc.).
4305 *) New openssl application 'rsautl'. This utility can be
4306 used for low level RSA operations. DER public key
4307 BIO/fp routines also added.
4310 *) New Configure entry and patches for compiling on QNX 4.
4311 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4313 *) A demo state-machine implementation was sponsored by
4314 Nuron (http://www.nuron.com/) and is now available in
4315 demos/state_machine.
4318 *) New options added to the 'dgst' utility for signature
4319 generation and verification.
4322 *) Unrecognized PKCS#7 content types are now handled via a
4323 catch all ASN1_TYPE structure. This allows unsupported
4324 types to be stored as a "blob" and an application can
4325 encode and decode it manually.
4328 *) Fix various signed/unsigned issues to make a_strex.c
4330 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4332 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4333 length if passed a buffer. ASN1_INTEGER_to_BN failed
4334 if passed a NULL BN and its argument was negative.
4335 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4337 *) Modification to PKCS#7 encoding routines to output definite
4338 length encoding. Since currently the whole structures are in
4339 memory there's not real point in using indefinite length
4340 constructed encoding. However if OpenSSL is compiled with
4341 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4344 *) Added BIO_vprintf() and BIO_vsnprintf().
4347 *) Added more prefixes to parse for in the the strings written
4348 through a logging bio, to cover all the levels that are available
4349 through syslog. The prefixes are now:
4351 PANIC, EMERG, EMR => LOG_EMERG
4352 ALERT, ALR => LOG_ALERT
4353 CRIT, CRI => LOG_CRIT
4354 ERROR, ERR => LOG_ERR
4355 WARNING, WARN, WAR => LOG_WARNING
4356 NOTICE, NOTE, NOT => LOG_NOTICE
4357 INFO, INF => LOG_INFO
4358 DEBUG, DBG => LOG_DEBUG
4360 and as before, if none of those prefixes are present at the
4361 beginning of the string, LOG_ERR is chosen.
4363 On Win32, the LOG_* levels are mapped according to this:
4365 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4366 LOG_WARNING => EVENTLOG_WARNING_TYPE
4367 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4371 *) Made it possible to reconfigure with just the configuration
4372 argument "reconf" or "reconfigure". The command line arguments
4373 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4374 and are retrieved from there when reconfiguring.
4378 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4380 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4383 *) The obj_dat.pl script was messing up the sorting of object
4384 names. The reason was that it compared the quoted version
4385 of strings as a result "OCSP" > "OCSP Signing" because
4386 " > SPACE. Changed script to store unquoted versions of
4387 names and add quotes on output. It was also omitting some
4388 names from the lookup table if they were given a default
4389 value (that is if SN is missing it is given the same
4390 value as LN and vice versa), these are now added on the
4391 grounds that if an object has a name we should be able to
4392 look it up. Finally added warning output when duplicate
4393 short or long names are found.
4396 *) Changes needed for Tandem NSK.
4397 [Scott Uroff <scott@xypro.com>]
4399 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4400 RSA_padding_check_SSLv23(), special padding was never detected
4401 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4402 version rollback attacks was not effective.
4404 In s23_clnt.c, don't use special rollback-attack detection padding
4405 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4406 client; similarly, in s23_srvr.c, don't do the rollback check if
4407 SSL 2.0 is the only protocol enabled in the server.
4410 *) Make it possible to get hexdumps of unprintable data with 'openssl
4411 asn1parse'. By implication, the functions ASN1_parse_dump() and
4412 BIO_dump_indent() are added.
4415 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4416 these print out strings and name structures based on various
4417 flags including RFC2253 support and proper handling of
4418 multibyte characters. Added options to the 'x509' utility
4419 to allow the various flags to be set.
4422 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4423 Also change the functions X509_cmp_current_time() and
4424 X509_gmtime_adj() work with an ASN1_TIME structure,
4425 this will enable certificates using GeneralizedTime in validity
4426 dates to be checked.
4429 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4430 negative public key encodings) on by default,
4431 NO_NEG_PUBKEY_BUG can be set to disable it.
4434 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4435 content octets. An i2c_ASN1_OBJECT is unnecessary because
4436 the encoding can be trivially obtained from the structure.
4439 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4440 not read locks (CRYPTO_r_[un]lock).
4443 *) A first attempt at creating official support for shared
4444 libraries through configuration. I've kept it so the
4445 default is static libraries only, and the OpenSSL programs
4446 are always statically linked for now, but there are
4447 preparations for dynamic linking in place.
4448 This has been tested on Linux and Tru64.
4451 *) Randomness polling function for Win9x, as described in:
4452 Peter Gutmann, Software Generation of Practically Strong
4456 *) Fix so PRNG is seeded in req if using an already existing
4460 *) New options to smime application. -inform and -outform
4461 allow alternative formats for the S/MIME message including
4462 PEM and DER. The -content option allows the content to be
4463 specified separately. This should allow things like Netscape
4464 form signing output easier to verify.
4467 *) Fix the ASN1 encoding of tags using the 'long form'.
4470 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4471 STRING types. These convert content octets to and from the
4472 underlying type. The actual tag and length octets are
4473 already assumed to have been read in and checked. These
4474 are needed because all other string types have virtually
4475 identical handling apart from the tag. By having versions
4476 of the ASN1 functions that just operate on content octets
4477 IMPLICIT tagging can be handled properly. It also allows
4478 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4479 and ASN1_INTEGER are identical apart from the tag.
4482 *) Change the handling of OID objects as follows:
4484 - New object identifiers are inserted in objects.txt, following
4485 the syntax given in objects.README.
4486 - objects.pl is used to process obj_mac.num and create a new
4488 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4491 This is currently kind of a hack, and the perl code in objects.pl
4492 isn't very elegant, but it works as I intended. The simplest way
4493 to check that it worked correctly is to look in obj_dat.h and
4494 check the array nid_objs and make sure the objects haven't moved
4495 around (this is important!). Additions are OK, as well as
4496 consistent name changes.
4499 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4502 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4503 The given file adds to whatever has already been seeded into the
4504 random pool through the RANDFILE configuration file option or
4505 environment variable, or the default random state file.
4508 *) mkstack.pl now sorts each macro group into lexical order.
4509 Previously the output order depended on the order the files
4510 appeared in the directory, resulting in needless rewriting
4514 *) Patches to make OpenSSL compile under Win32 again. Mostly
4515 work arounds for the VC++ problem that it treats func() as
4516 func(void). Also stripped out the parts of mkdef.pl that
4517 added extra typesafe functions: these no longer exist.
4520 *) Reorganisation of the stack code. The macros are now all
4521 collected in safestack.h . Each macro is defined in terms of
4522 a "stack macro" of the form SKM_<name>(type, a, b). The
4523 DEBUG_SAFESTACK is now handled in terms of function casts,
4524 this has the advantage of retaining type safety without the
4525 use of additional functions. If DEBUG_SAFESTACK is not defined
4526 then the non typesafe macros are used instead. Also modified the
4527 mkstack.pl script to handle the new form. Needs testing to see
4528 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4529 the default if no major problems. Similar behaviour for ASN1_SET_OF
4530 and PKCS12_STACK_OF.
4533 *) When some versions of IIS use the 'NET' form of private key the
4534 key derivation algorithm is different. Normally MD5(password) is
4535 used as a 128 bit RC4 key. In the modified case
4536 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4537 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4538 as the old Netscape_RSA functions except they have an additional
4539 'sgckey' parameter which uses the modified algorithm. Also added
4540 an -sgckey command line option to the rsa utility. Thanks to
4541 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4542 algorithm to openssl-dev.
4545 *) The evp_local.h macros were using 'c.##kname' which resulted in
4546 invalid expansion on some systems (SCO 5.0.5 for example).
4547 Corrected to 'c.kname'.
4548 [Phillip Porch <root@theporch.com>]
4550 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4551 a STACK of email addresses from a certificate or request, these look
4552 in the subject name and the subject alternative name extensions and
4553 omit any duplicate addresses.
4556 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4557 This makes DSA verification about 2 % faster.
4560 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4561 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4562 plus overhead for 1024 bit moduli).
4563 This makes exponentiations about 0.5 % faster for 1024 bit
4564 exponents (as measured by "openssl speed rsa2048").
4567 *) Rename memory handling macros to avoid conflicts with other
4569 Malloc => OPENSSL_malloc
4570 Malloc_locked => OPENSSL_malloc_locked
4571 Realloc => OPENSSL_realloc
4572 Free => OPENSSL_free
4575 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4576 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4579 *) CygWin32 support.
4580 [John Jarvie <jjarvie@newsguy.com>]
4582 *) The type-safe stack code has been rejigged. It is now only compiled
4583 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4584 by default all type-specific stack functions are "#define"d back to
4585 standard stack functions. This results in more streamlined output
4586 but retains the type-safety checking possibilities of the original
4590 *) The STACK code has been cleaned up, and certain type declarations
4591 that didn't make a lot of sense have been brought in line. This has
4592 also involved a cleanup of sorts in safestack.h to more correctly
4593 map type-safe stack functions onto their plain stack counterparts.
4594 This work has also resulted in a variety of "const"ifications of
4595 lots of the code, especially "_cmp" operations which should normally
4596 be prototyped with "const" parameters anyway.
4599 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4600 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4601 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4602 where all of 'md' is used each time the PRNG is used, but 'state'
4603 is used only indexed by a cyclic counter. As entropy may not be
4604 well distributed from the beginning, 'md' is important as a
4605 chaining variable. However, the output function chains only half
4606 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4607 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4608 in all of 'state' being rewritten, with the new values depending
4609 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4612 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4613 the handshake is continued after ssl_verify_cert_chain();
4614 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4615 can lead to 'unexplainable' connection aborts later.
4616 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4618 *) Major EVP API cipher revision.
4619 Add hooks for extra EVP features. This allows various cipher
4620 parameters to be set in the EVP interface. Support added for variable
4621 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4622 setting of RC2 and RC5 parameters.
4624 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4627 Remove lots of duplicated code from the EVP library. For example *every*
4628 cipher init() function handles the 'iv' in the same way according to the
4629 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4630 for CFB and OFB modes they zero ctx->num.
4632 New functionality allows removal of S/MIME code RC2 hack.
4634 Most of the routines have the same form and so can be declared in terms
4637 By shifting this to the top level EVP_CipherInit() it can be removed from
4638 all individual ciphers. If the cipher wants to handle IVs or keys
4639 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4642 Change lots of functions like EVP_EncryptUpdate() to now return a
4643 value: although software versions of the algorithms cannot fail
4644 any installed hardware versions can.
4647 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4648 this option is set, tolerate broken clients that send the negotiated
4649 protocol version number instead of the requested protocol version
4653 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4654 i.e. non-zero for export ciphersuites, zero otherwise.
4655 Previous versions had this flag inverted, inconsistent with
4656 rsa_tmp_cb (..._TMP_RSA_CB).
4657 [Bodo Moeller; problem reported by Amit Chopra]
4659 *) Add missing DSA library text string. Work around for some IIS
4660 key files with invalid SEQUENCE encoding.
4663 *) Add a document (doc/standards.txt) that list all kinds of standards
4664 and so on that are implemented in OpenSSL.
4667 *) Enhance c_rehash script. Old version would mishandle certificates
4668 with the same subject name hash and wouldn't handle CRLs at all.
4669 Added -fingerprint option to crl utility, to support new c_rehash
4673 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4676 *) Fix for SSL server purpose checking. Server checking was
4677 rejecting certificates which had extended key usage present
4678 but no ssl client purpose.
4679 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4681 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4682 is a little unclear about how a blank password is handled.
4683 Since the password in encoded as a BMPString with terminating
4684 double NULL a zero length password would end up as just the
4685 double NULL. However no password at all is different and is
4686 handled differently in the PKCS#12 key generation code. NS
4687 treats a blank password as zero length. MSIE treats it as no
4688 password on export: but it will try both on import. We now do
4689 the same: PKCS12_parse() tries zero length and no password if
4690 the password is set to "" or NULL (NULL is now a valid password:
4691 it wasn't before) as does the pkcs12 application.
4694 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4695 perror when PEM_read_bio_X509_REQ fails, the error message must
4696 be obtained from the error queue.
4699 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4700 it in ERR_remove_state if appropriate, and change ERR_get_state
4701 accordingly to avoid race conditions (this is necessary because
4702 thread_hash is no longer constant once set).
4705 *) Bugfix for linux-elf makefile.one.
4708 *) RSA_get_default_method() will now cause a default
4709 RSA_METHOD to be chosen if one doesn't exist already.
4710 Previously this was only set during a call to RSA_new()
4711 or RSA_new_method(NULL) meaning it was possible for
4712 RSA_get_default_method() to return NULL.
4715 *) Added native name translation to the existing DSO code
4716 that will convert (if the flag to do so is set) filenames
4717 that are sufficiently small and have no path information
4718 into a canonical native form. Eg. "blah" converted to
4719 "libblah.so" or "blah.dll" etc.
4722 *) New function ERR_error_string_n(e, buf, len) which is like
4723 ERR_error_string(e, buf), but writes at most 'len' bytes
4724 including the 0 terminator. For ERR_error_string_n, 'buf'
4726 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4728 *) CONF library reworked to become more general. A new CONF
4729 configuration file reader "class" is implemented as well as a
4730 new functions (NCONF_*, for "New CONF") to handle it. The now
4731 old CONF_* functions are still there, but are reimplemented to
4732 work in terms of the new functions. Also, a set of functions
4733 to handle the internal storage of the configuration data is
4734 provided to make it easier to write new configuration file
4735 reader "classes" (I can definitely see something reading a
4736 configuration file in XML format, for example), called _CONF_*,
4737 or "the configuration storage API"...
4739 The new configuration file reading functions are:
4741 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4742 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4744 NCONF_default, NCONF_WIN32
4746 NCONF_dump_fp, NCONF_dump_bio
4748 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4749 NCONF_new creates a new CONF object. This works in the same way
4750 as other interfaces in OpenSSL, like the BIO interface.
4751 NCONF_dump_* dump the internal storage of the configuration file,
4752 which is useful for debugging. All other functions take the same
4753 arguments as the old CONF_* functions wth the exception of the
4754 first that must be a `CONF *' instead of a `LHASH *'.
4756 To make it easer to use the new classes with the old CONF_* functions,
4757 the function CONF_set_default_method is provided.
4760 *) Add '-tls1' option to 'openssl ciphers', which was already
4761 mentioned in the documentation but had not been implemented.
4762 (This option is not yet really useful because even the additional
4763 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4766 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4767 OpenSSL-based applications) load shared libraries and bind to
4768 them in a portable way.
4769 [Geoff Thorpe, with contributions from Richard Levitte]
4771 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4773 *) Make sure _lrotl and _lrotr are only used with MSVC.
4775 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4776 (the default implementation of RAND_status).
4778 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4779 to '-clrext' (= clear extensions), as intended and documented.
4780 [Bodo Moeller; inconsistency pointed out by Michael Attili
4783 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4784 was larger than the MD block size.
4785 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4787 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4788 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4789 using the passed key: if the passed key was a private key the result
4790 of X509_print(), for example, would be to print out all the private key
4794 *) des_quad_cksum() byte order bug fix.
4795 [Ulf Möller, using the problem description in krb4-0.9.7, where
4796 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4798 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4800 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4802 *) For easily testing in shell scripts whether some command
4803 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4804 returns with exit code 0 iff no command of the given name is available.
4805 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4806 the output goes to stdout and nothing is printed to stderr.
4807 Additional arguments are always ignored.
4809 Since for each cipher there is a command of the same name,
4810 the 'no-cipher' compilation switches can be tested this way.
4812 ('openssl no-XXX' is not able to detect pseudo-commands such
4813 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4816 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4819 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4820 is set; it will be thrown away anyway because each handshake creates
4822 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4823 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4824 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4825 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4828 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4829 'Q' and 'R' lose their special meanings (quit/renegotiate).
4830 This is part of what -quiet does; unlike -quiet, -ign_eof
4831 does not suppress any output.
4834 *) Add compatibility options to the purpose and trust code. The
4835 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4836 accepts a certificate or CA, this was the previous behaviour,
4837 with all the associated security issues.
4839 X509_TRUST_COMPAT is the old trust behaviour: only and
4840 automatically trust self signed roots in certificate store. A
4841 new trust setting X509_TRUST_DEFAULT is used to specify that
4842 a purpose has no associated trust setting and it should instead
4843 use the value in the default purpose.
4846 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4847 and fix a memory leak.
4850 *) In util/mkerr.pl (which implements 'make errors'), preserve
4851 reason strings from the previous version of the .c file, as
4852 the default to have only downcase letters (and digits) in
4853 automatically generated reasons codes is not always appropriate.
4856 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4857 using strerror. Previously, ERR_reason_error_string() returned
4858 library names as reason strings for SYSerr; but SYSerr is a special
4859 case where small numbers are errno values, not library numbers.
4862 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4863 converts DSA parameters into DH parameters. (When creating parameters,
4864 DSA_generate_parameters is used.)
4867 *) Include 'length' (recommended exponent length) in C code generated
4868 by 'openssl dhparam -C'.
4871 *) The second argument to set_label in perlasm was already being used
4872 so couldn't be used as a "file scope" flag. Moved to third argument
4876 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4877 instead of RAND_bytes for encryption IVs and salts.
4880 *) Include RAND_status() into RAND_METHOD instead of implementing
4881 it only for md_rand.c Otherwise replacing the PRNG by calling
4882 RAND_set_rand_method would be impossible.
4885 *) Don't let DSA_generate_key() enter an infinite loop if the random
4886 number generation fails.
4889 *) New 'rand' application for creating pseudo-random output.
4892 *) Added configuration support for Linux/IA64
4893 [Rolf Haberrecker <rolf@suse.de>]
4895 *) Assembler module support for Mingw32.
4898 *) Shared library support for HPUX (in shlib/).
4899 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4901 *) Shared library support for Solaris gcc.
4902 [Lutz Behnke <behnke@trustcenter.de>]
4904 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4906 *) PKCS7_encrypt() was adding text MIME headers twice because they
4907 were added manually and by SMIME_crlf_copy().
4910 *) In bntest.c don't call BN_rand with zero bits argument.
4911 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4913 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4914 case was implemented. This caused BN_div_recp() to fail occasionally.
4917 *) Add an optional second argument to the set_label() in the perl
4918 assembly language builder. If this argument exists and is set
4919 to 1 it signals that the assembler should use a symbol whose
4920 scope is the entire file, not just the current function. This
4921 is needed with MASM which uses the format label:: for this scope.
4922 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4924 *) Change the ASN1 types so they are typedefs by default. Before
4925 almost all types were #define'd to ASN1_STRING which was causing
4926 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4930 *) Change names of new functions to the new get1/get0 naming
4931 convention: After 'get1', the caller owns a reference count
4932 and has to call ..._free; 'get0' returns a pointer to some
4933 data structure without incrementing reference counters.
4934 (Some of the existing 'get' functions increment a reference
4935 counter, some don't.)
4936 Similarly, 'set1' and 'add1' functions increase reference
4937 counters or duplicate objects.
4940 *) Allow for the possibility of temp RSA key generation failure:
4941 the code used to assume it always worked and crashed on failure.
4944 *) Fix potential buffer overrun problem in BIO_printf().
4945 [Ulf Möller, using public domain code by Patrick Powell; problem
4946 pointed out by David Sacerdote <das33@cornell.edu>]
4948 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4949 RAND_egd() and RAND_status(). In the command line application,
4950 the EGD socket can be specified like a seed file using RANDFILE
4954 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4955 Some CAs (e.g. Verisign) distribute certificates in this form.
4958 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4959 list to exclude them. This means that no special compilation option
4960 is needed to use anonymous DH: it just needs to be included in the
4964 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4965 EVP_MD_type. The old functionality is available in a new macro called
4966 EVP_MD_md(). Change code that uses it and update docs.
4969 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4970 where the 'void *' argument is replaced by a function pointer argument.
4971 Previously 'void *' was abused to point to functions, which works on
4972 many platforms, but is not correct. As these functions are usually
4973 called by macros defined in OpenSSL header files, most source code
4974 should work without changes.
4977 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4978 sections with information on -D... compiler switches used for
4979 compiling the library so that applications can see them. To enable
4980 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4981 must be defined. E.g.,
4982 #define OPENSSL_ALGORITHM_DEFINES
4983 #include <openssl/opensslconf.h>
4984 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4985 [Richard Levitte, Ulf and Bodo Möller]
4987 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4991 *) Change the 'other' type in certificate aux info to a STACK_OF
4992 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4993 the required ASN1 format: arbitrary types determined by an OID.
4996 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4997 argument to 'req'. This is not because the function is newer or
4998 better than others it just uses the work 'NEW' in the certificate
4999 request header lines. Some software needs this.
5002 *) Reorganise password command line arguments: now passwords can be
5003 obtained from various sources. Delete the PEM_cb function and make
5004 it the default behaviour: i.e. if the callback is NULL and the
5005 usrdata argument is not NULL interpret it as a null terminated pass
5006 phrase. If usrdata and the callback are NULL then the pass phrase
5007 is prompted for as usual.
5010 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5011 the support is automatically enabled. The resulting binaries will
5012 autodetect the card and use it if present.
5013 [Ben Laurie and Compaq Inc.]
5015 *) Work around for Netscape hang bug. This sends certificate request
5016 and server done in one record. Since this is perfectly legal in the
5017 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5018 the bugs/SSLv3 entry for more info.
5021 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5024 *) Add -rand argument to smime and pkcs12 applications and read/write
5028 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5031 *) Add command line password options to the remaining applications.
5034 *) Bug fix for BN_div_recp() for numerators with an even number of
5038 *) More tests in bntest.c, and changed test_bn output.
5041 *) ./config recognizes MacOS X now.
5044 *) Bug fix for BN_div() when the first words of num and divsor are
5045 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5048 *) Add support for various broken PKCS#8 formats, and command line
5049 options to produce them.
5052 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5053 get temporary BIGNUMs from a BN_CTX.
5056 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5060 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5061 include a #define from the old name to the new. The original intent
5062 was that statically linked binaries could for example just call
5063 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5064 link with digests. This never worked becayse SSLeay_add_all_digests()
5065 and SSLeay_add_all_ciphers() were in the same source file so calling
5066 one would link with the other. They are now in separate source files.
5069 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5072 *) Use a less unusual form of the Miller-Rabin primality test (it used
5073 a binary algorithm for exponentiation integrated into the Miller-Rabin
5074 loop, our standard modexp algorithms are faster).
5077 *) Support for the EBCDIC character set completed.
5078 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5080 *) Source code cleanups: use const where appropriate, eliminate casts,
5081 use void * instead of char * in lhash.
5084 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5085 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5086 this the server could overwrite ephemeral keys that the client
5090 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5091 using 50 iterations of the Rabin-Miller test.
5093 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5094 iterations of the Rabin-Miller test as required by the appendix
5095 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5096 As BN_is_prime_fasttest includes trial division, DSA parameter
5097 generation becomes much faster.
5099 This implies a change for the callback functions in DSA_is_prime
5100 and DSA_generate_parameters: The callback function is called once
5101 for each positive witness in the Rabin-Miller test, not just
5102 occasionally in the inner loop; and the parameters to the
5103 callback function now provide an iteration count for the outer
5104 loop rather than for the current invocation of the inner loop.
5105 DSA_generate_parameters additionally can call the callback
5106 function with an 'iteration count' of -1, meaning that a
5107 candidate has passed the trial division test (when q is generated
5108 from an application-provided seed, trial division is skipped).
5111 *) New function BN_is_prime_fasttest that optionally does trial
5112 division before starting the Rabin-Miller test and has
5113 an additional BN_CTX * argument (whereas BN_is_prime always
5114 has to allocate at least one BN_CTX).
5115 'callback(1, -1, cb_arg)' is called when a number has passed the
5116 trial division stage.
5119 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5123 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5126 *) New function BN_pseudo_rand().
5129 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5130 bignum version of BN_from_montgomery() with the working code from
5131 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5135 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5136 made it impossible to use the same SSL_SESSION data structure in
5137 SSL2 clients in multiple threads.
5140 *) The return value of RAND_load_file() no longer counts bytes obtained
5141 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5142 to seed the PRNG (previously an explicit byte count was required).
5143 [Ulf Möller, Bodo Möller]
5145 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5146 used (char *) instead of (void *) and had casts all over the place.
5149 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5152 *) Retain source code compatibility for BN_prime_checks macro:
5153 BN_is_prime(..., BN_prime_checks, ...) now uses
5154 BN_prime_checks_for_size to determine the appropriate number of
5155 Rabin-Miller iterations.
5158 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5159 DH_CHECK_P_NOT_SAFE_PRIME.
5160 (Check if this is true? OpenPGP calls them "strong".)
5163 *) Merge the functionality of "dh" and "gendh" programs into a new program
5164 "dhparam". The old programs are retained for now but will handle DH keys
5165 (instead of parameters) in future.
5168 *) Make the ciphers, s_server and s_client programs check the return values
5169 when a new cipher list is set.
5172 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5173 ciphers. Before when the 56bit ciphers were enabled the sorting was
5176 The syntax for the cipher sorting has been extended to support sorting by
5177 cipher-strength (using the strength_bits hard coded in the tables).
5178 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5180 Fix a bug in the cipher-command parser: when supplying a cipher command
5181 string with an "undefined" symbol (neither command nor alphanumeric
5182 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5183 an error is flagged.
5185 Due to the strength-sorting extension, the code of the
5186 ssl_create_cipher_list() function was completely rearranged. I hope that
5187 the readability was also increased :-)
5188 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5190 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5191 for the first serial number and places 2 in the serial number file. This
5192 avoids problems when the root CA is created with serial number zero and
5193 the first user certificate has the same issuer name and serial number
5197 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5198 the new code. Add documentation for this stuff.
5201 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5202 X509_*() to X509at_*() on the grounds that they don't handle X509
5203 structures and behave in an analagous way to the X509v3 functions:
5204 they shouldn't be called directly but wrapper functions should be used
5207 So we also now have some wrapper functions that call the X509at functions
5208 when passed certificate requests. (TO DO: similar things can be done with
5209 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5210 things. Some of these need some d2i or i2d and print functionality
5211 because they handle more complex structures.)
5214 *) Add missing #ifndefs that caused missing symbols when building libssl
5215 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5216 NO_RSA in ssl/s2*.c.
5217 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5219 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5220 has a return value which indicates the quality of the random data
5221 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5222 error queue. New function RAND_pseudo_bytes() generates output that is
5223 guaranteed to be unique but not unpredictable. RAND_add is like
5224 RAND_seed, but takes an extra argument for an entropy estimate
5225 (RAND_seed always assumes full entropy).
5228 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5229 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5230 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5231 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5232 false-positive rate of at most 2^-80 for random input.
5235 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5238 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5239 in the 0.9.5 release), this returns the chain
5240 from an X509_CTX structure with a dup of the stack and all
5241 the X509 reference counts upped: so the stack will exist
5242 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5245 Also make SSL_SESSION_print() print out the verify return
5249 *) Add manpage for the pkcs12 command. Also change the default
5250 behaviour so MAC iteration counts are used unless the new
5251 -nomaciter option is used. This improves file security and
5252 only older versions of MSIE (4.0 for example) need it.
5255 *) Honor the no-xxx Configure options when creating .DEF files.
5258 *) Add PKCS#10 attributes to field table: challengePassword,
5259 unstructuredName and unstructuredAddress. These are taken from
5260 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5261 international characters are used.
5263 More changes to X509_ATTRIBUTE code: allow the setting of types
5264 based on strings. Remove the 'loc' parameter when adding
5265 attributes because these will be a SET OF encoding which is sorted
5269 *) Initial changes to the 'req' utility to allow request generation
5270 automation. This will allow an application to just generate a template
5271 file containing all the field values and have req construct the
5274 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5275 used all over the place including certificate requests and PKCS#7
5276 structures. They are currently handled manually where necessary with
5277 some primitive wrappers for PKCS#7. The new functions behave in a
5278 manner analogous to the X509 extension functions: they allow
5279 attributes to be looked up by NID and added.
5281 Later something similar to the X509V3 code would be desirable to
5282 automatically handle the encoding, decoding and printing of the
5283 more complex types. The string types like challengePassword can
5284 be handled by the string table functions.
5286 Also modified the multi byte string table handling. Now there is
5287 a 'global mask' which masks out certain types. The table itself
5288 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5289 is useful when for example there is only one permissible type
5290 (as in countryName) and using the mask might result in no valid
5294 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5295 SSL_get_peer_finished to allow applications to obtain the latest
5296 Finished messages sent to the peer or expected from the peer,
5297 respectively. (SSL_get_peer_finished is usually the Finished message
5298 actually received from the peer, otherwise the protocol will be aborted.)
5300 As the Finished message are message digests of the complete handshake
5301 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5302 be used for external authentication procedures when the authentication
5303 provided by SSL/TLS is not desired or is not enough.
5306 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5307 the host supports BWX extension and if Compaq C is present on the
5308 $PATH. Just exploiting of the BWX extension results in 20-30%
5309 performance kick for some algorithms, e.g. DES and RC4 to mention
5310 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5314 *) Add support for MS "fast SGC". This is arguably a violation of the
5315 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5316 weak crypto and after checking the certificate is SGC a second one
5317 with strong crypto. MS SGC stops the first handshake after receiving
5318 the server certificate message and sends a second client hello. Since
5319 a server will typically do all the time consuming operations before
5320 expecting any further messages from the client (server key exchange
5321 is the most expensive) there is little difference between the two.
5323 To get OpenSSL to support MS SGC we have to permit a second client
5324 hello message after we have sent server done. In addition we have to
5325 reset the MAC if we do get this second client hello.
5328 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5329 if a DER encoded private key is RSA or DSA traditional format. Changed
5330 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5331 format DER encoded private key. Newer code should use PKCS#8 format which
5332 has the key type encoded in the ASN1 structure. Added DER private key
5333 support to pkcs8 application.
5336 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5337 ciphersuites has been selected (as required by the SSL 3/TLS 1
5338 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5339 is set, we interpret this as a request to violate the specification
5340 (the worst that can happen is a handshake failure, and 'correct'
5341 behaviour would result in a handshake failure anyway).
5344 *) In SSL_CTX_add_session, take into account that there might be multiple
5345 SSL_SESSION structures with the same session ID (e.g. when two threads
5346 concurrently obtain them from an external cache).
5347 The internal cache can handle only one SSL_SESSION with a given ID,
5348 so if there's a conflict, we now throw out the old one to achieve
5352 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5353 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5354 some routines that use cipher OIDs: some ciphers do not have OIDs
5355 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5359 *) Simplify the trust setting structure and code. Now we just have
5360 two sequences of OIDs for trusted and rejected settings. These will
5361 typically have values the same as the extended key usage extension
5362 and any application specific purposes.
5364 The trust checking code now has a default behaviour: it will just
5365 check for an object with the same NID as the passed id. Functions can
5366 be provided to override either the default behaviour or the behaviour
5367 for a given id. SSL client, server and email already have functions
5368 in place for compatibility: they check the NID and also return "trusted"
5369 if the certificate is self signed.
5372 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5373 traditional format into an EVP_PKEY structure.
5376 *) Add a password callback function PEM_cb() which either prompts for
5377 a password if usr_data is NULL or otherwise assumes it is a null
5378 terminated password. Allow passwords to be passed on command line
5379 environment or config files in a few more utilities.
5382 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5383 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5384 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5385 Update documentation.
5388 *) Support for ASN1 "NULL" type. This could be handled before by using
5389 ASN1_TYPE but there wasn't any function that would try to read a NULL
5390 and produce an error if it couldn't. For compatibility we also have
5391 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5392 don't allocate anything because they don't need to.
5395 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5397 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5399 *) Rebuild of the memory allocation routines used by OpenSSL code and
5400 possibly others as well. The purpose is to make an interface that
5401 provide hooks so anyone can build a separate set of allocation and
5402 deallocation routines to be used by OpenSSL, for example memory
5403 pool implementations, or something else, which was previously hard
5404 since Malloc(), Realloc() and Free() were defined as macros having
5405 the values malloc, realloc and free, respectively (except for Win32
5406 compilations). The same is provided for memory debugging code.
5407 OpenSSL already comes with functionality to find memory leaks, but
5408 this gives people a chance to debug other memory problems.
5410 With these changes, a new set of functions and macros have appeared:
5412 CRYPTO_set_mem_debug_functions() [F]
5413 CRYPTO_get_mem_debug_functions() [F]
5414 CRYPTO_dbg_set_options() [F]
5415 CRYPTO_dbg_get_options() [F]
5416 CRYPTO_malloc_debug_init() [M]
5418 The memory debug functions are NULL by default, unless the library
5419 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5420 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5421 gives the standard debugging functions that come with OpenSSL) or
5422 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5423 provided by the library user) must be used. When the standard
5424 debugging functions are used, CRYPTO_dbg_set_options can be used to
5425 request additional information:
5426 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5427 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5429 Also, things like CRYPTO_set_mem_functions will always give the
5430 expected result (the new set of functions is used for allocation
5431 and deallocation) at all times, regardless of platform and compiler
5434 To finish it up, some functions that were never use in any other
5435 way than through macros have a new API and new semantic:
5438 CRYPTO_dbg_realloc()
5441 All macros of value have retained their old syntax.
5442 [Richard Levitte and Bodo Moeller]
5444 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5445 ordering of SMIMECapabilities wasn't in "strength order" and there
5446 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5450 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5451 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5452 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5454 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5455 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5456 functionality to handle multipart/signed properly) and a utility
5457 called 'smime' to call all this stuff. This is based on code I
5458 originally wrote for Celo who have kindly allowed it to be
5459 included in OpenSSL.
5462 *) Add variants des_set_key_checked and des_set_key_unchecked of
5463 des_set_key (aka des_key_sched). Global variable des_check_key
5464 decides which of these is called by des_set_key; this way
5465 des_check_key behaves as it always did, but applications and
5466 the library itself, which was buggy for des_check_key == 1,
5467 have a cleaner way to pick the version they need.
5470 *) New function PKCS12_newpass() which changes the password of a
5474 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5475 dynamic mix. In both cases the ids can be used as an index into the
5476 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5477 functions so they accept a list of the field values and the
5478 application doesn't need to directly manipulate the X509_TRUST
5482 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5486 *) Modify the way the V3 extension code looks up extensions. This now
5487 works in a similar way to the object code: we have some "standard"
5488 extensions in a static table which is searched with OBJ_bsearch()
5489 and the application can add dynamic ones if needed. The file
5490 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5491 updated whenever a new extension is added to the core code and kept
5492 in ext_nid order. There is a simple program 'tabtest.c' which checks
5493 this. New extensions are not added too often so this file can readily
5494 be maintained manually.
5496 There are two big advantages in doing things this way. The extensions
5497 can be looked up immediately and no longer need to be "added" using
5498 X509V3_add_standard_extensions(): this function now does nothing.
5499 [Side note: I get *lots* of email saying the extension code doesn't
5500 work because people forget to call this function]
5501 Also no dynamic allocation is done unless new extensions are added:
5502 so if we don't add custom extensions there is no need to call
5503 X509V3_EXT_cleanup().
5506 *) Modify enc utility's salting as follows: make salting the default. Add a
5507 magic header, so unsalted files fail gracefully instead of just decrypting
5508 to garbage. This is because not salting is a big security hole, so people
5509 should be discouraged from doing it.
5512 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5513 digest to be passed on the command line but it only used this
5514 parameter when signing a certificate. Modified so all relevant
5515 operations are affected by the digest parameter including the
5516 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5517 DSA key was used because it didn't fix the digest.
5520 *) Initial certificate chain verify code. Currently tests the untrusted
5521 certificates for consistency with the verify purpose (which is set
5522 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5524 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5525 this is because it will reject chains with invalid extensions whereas
5526 every previous version of OpenSSL and SSLeay made no checks at all.
5528 Trust code: checks the root CA for the relevant trust settings. Trust
5529 settings have an initial value consistent with the verify purpose: e.g.
5530 if the verify purpose is for SSL client use it expects the CA to be
5531 trusted for SSL client use. However the default value can be changed to
5532 permit custom trust settings: one example of this would be to only trust
5533 certificates from a specific "secure" set of CAs.
5535 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5536 which should be used for version portability: especially since the
5537 verify structure is likely to change more often now.
5539 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5540 to set them. If not set then assume SSL clients will verify SSL servers
5543 Two new options to the verify program: -untrusted allows a set of
5544 untrusted certificates to be passed in and -purpose which sets the
5545 intended purpose of the certificate. If a purpose is set then the
5546 new chain verify code is used to check extension consistency.
5549 *) Support for the authority information access extension.
5552 *) Modify RSA and DSA PEM read routines to transparently handle
5553 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5554 public keys in a format compatible with certificate
5555 SubjectPublicKeyInfo structures. Unfortunately there were already
5556 functions called *_PublicKey_* which used various odd formats so
5557 these are retained for compatibility: however the DSA variants were
5558 never in a public release so they have been deleted. Changed dsa/rsa
5559 utilities to handle the new format: note no releases ever handled public
5560 keys so we should be OK.
5562 The primary motivation for this change is to avoid the same fiasco
5563 that dogs private keys: there are several incompatible private key
5564 formats some of which are standard and some OpenSSL specific and
5565 require various evil hacks to allow partial transparent handling and
5566 even then it doesn't work with DER formats. Given the option anything
5567 other than PKCS#8 should be dumped: but the other formats have to
5568 stay in the name of compatibility.
5570 With public keys and the benefit of hindsight one standard format
5571 is used which works with EVP_PKEY, RSA or DSA structures: though
5572 it clearly returns an error if you try to read the wrong kind of key.
5574 Added a -pubkey option to the 'x509' utility to output the public key.
5575 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5576 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5577 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5578 that do the same as the EVP_PKEY_assign_*() except they up the
5579 reference count of the added key (they don't "swallow" the
5583 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5584 CRLs would fail if the file contained no certificates or no CRLs:
5585 added a new function to read in both types and return the number
5586 read: this means that if none are read it will be an error. The
5587 DER versions of the certificate and CRL reader would always fail
5588 because it isn't possible to mix certificates and CRLs in DER format
5589 without choking one or the other routine. Changed this to just read
5590 a certificate: this is the best we can do. Also modified the code
5591 in apps/verify.c to take notice of return codes: it was previously
5592 attempting to read in certificates from NULL pointers and ignoring
5593 any errors: this is one reason why the cert and CRL reader seemed
5594 to work. It doesn't check return codes from the default certificate
5595 routines: these may well fail if the certificates aren't installed.
5598 *) Code to support otherName option in GeneralName.
5601 *) First update to verify code. Change the verify utility
5602 so it warns if it is passed a self signed certificate:
5603 for consistency with the normal behaviour. X509_verify
5604 has been modified to it will now verify a self signed
5605 certificate if *exactly* the same certificate appears
5606 in the store: it was previously impossible to trust a
5607 single self signed certificate. This means that:
5608 openssl verify ss.pem
5609 now gives a warning about a self signed certificate but
5610 openssl verify -CAfile ss.pem ss.pem
5614 *) For servers, store verify_result in SSL_SESSION data structure
5615 (and add it to external session representation).
5616 This is needed when client certificate verifications fails,
5617 but an application-provided verification callback (set by
5618 SSL_CTX_set_cert_verify_callback) allows accepting the session
5619 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5620 but returns 1): When the session is reused, we have to set
5621 ssl->verify_result to the appropriate error code to avoid
5623 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5625 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5626 case in PKCS7_dataInit() where the signed PKCS7 structure
5627 didn't contain any existing data because it was being created.
5628 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5630 *) Add a salt to the key derivation routines in enc.c. This
5631 forms the first 8 bytes of the encrypted file. Also add a
5632 -S option to allow a salt to be input on the command line.
5635 *) New function X509_cmp(). Oddly enough there wasn't a function
5636 to compare two certificates. We do this by working out the SHA1
5637 hash and comparing that. X509_cmp() will be needed by the trust
5641 *) SSL_get1_session() is like SSL_get_session(), but increments
5642 the reference count in the SSL_SESSION returned.
5643 [Geoff Thorpe <geoff@eu.c2.net>]
5645 *) Fix for 'req': it was adding a null to request attributes.
5646 Also change the X509_LOOKUP and X509_INFO code to handle
5647 certificate auxiliary information.
5650 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5654 *) Add the possibility to add extra information to the memory leak
5655 detecting output, to form tracebacks, showing from where each
5656 allocation was originated: CRYPTO_push_info("constant string") adds
5657 the string plus current file name and line number to a per-thread
5658 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5659 is like calling CYRPTO_pop_info() until the stack is empty.
5660 Also updated memory leak detection code to be multi-thread-safe.
5663 *) Add options -text and -noout to pkcs7 utility and delete the
5664 encryption options which never did anything. Update docs.
5667 *) Add options to some of the utilities to allow the pass phrase
5668 to be included on either the command line (not recommended on
5669 OSes like Unix) or read from the environment. Update the
5670 manpages and fix a few bugs.
5673 *) Add a few manpages for some of the openssl commands.
5676 *) Fix the -revoke option in ca. It was freeing up memory twice,
5677 leaking and not finding already revoked certificates.
5680 *) Extensive changes to support certificate auxiliary information.
5681 This involves the use of X509_CERT_AUX structure and X509_AUX
5682 functions. An X509_AUX function such as PEM_read_X509_AUX()
5683 can still read in a certificate file in the usual way but it
5684 will also read in any additional "auxiliary information". By
5685 doing things this way a fair degree of compatibility can be
5686 retained: existing certificates can have this information added
5687 using the new 'x509' options.
5689 Current auxiliary information includes an "alias" and some trust
5690 settings. The trust settings will ultimately be used in enhanced
5691 certificate chain verification routines: currently a certificate
5692 can only be trusted if it is self signed and then it is trusted
5696 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5697 The problem was that one of the replacement routines had not been working
5698 since SSLeay releases. For now the offending routine has been replaced
5699 with non-optimised assembler. Even so, this now gives around 95%
5700 performance improvement for 1024 bit RSA signs.
5703 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5704 handling. Most clients have the effective key size in bits equal to
5705 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5706 A few however don't do this and instead use the size of the decrypted key
5707 to determine the RC2 key length and the AlgorithmIdentifier to determine
5708 the effective key length. In this case the effective key length can still
5709 be 40 bits but the key length can be 168 bits for example. This is fixed
5710 by manually forcing an RC2 key into the EVP_PKEY structure because the
5711 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5712 the key length and effective key length are equal.
5715 *) Add a bunch of functions that should simplify the creation of
5716 X509_NAME structures. Now you should be able to do:
5717 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5718 and have it automatically work out the correct field type and fill in
5719 the structures. The more adventurous can try:
5720 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5721 and it will (hopefully) work out the correct multibyte encoding.
5724 *) Change the 'req' utility to use the new field handling and multibyte
5725 copy routines. Before the DN field creation was handled in an ad hoc
5726 way in req, ca, and x509 which was rather broken and didn't support
5727 BMPStrings or UTF8Strings. Since some software doesn't implement
5728 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5729 using the dirstring_type option. See the new comment in the default
5730 openssl.cnf for more info.
5733 *) Make crypto/rand/md_rand.c more robust:
5734 - Assure unique random numbers after fork().
5735 - Make sure that concurrent threads access the global counter and
5736 md serializably so that we never lose entropy in them
5737 or use exactly the same state in multiple threads.
5738 Access to the large state is not always serializable because
5739 the additional locking could be a performance killer, and
5740 md should be large enough anyway.
5743 *) New file apps/app_rand.c with commonly needed functionality
5744 for handling the random seed file.
5746 Use the random seed file in some applications that previously did not:
5748 dsaparam -genkey (which also ignored its '-rand' option),
5751 x509 (when signing).
5752 Except on systems with /dev/urandom, it is crucial to have a random
5753 seed file at least for key creation, DSA signing, and for DH exchanges;
5754 for RSA signatures we could do without one.
5756 gendh and gendsa (unlike genrsa) used to read only the first byte
5757 of each file listed in the '-rand' option. The function as previously
5758 found in genrsa is now in app_rand.c and is used by all programs
5759 that support '-rand'.
5762 *) In RAND_write_file, use mode 0600 for creating files;
5763 don't just chmod when it may be too late.
5766 *) Report an error from X509_STORE_load_locations
5767 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5770 *) New function ASN1_mbstring_copy() this copies a string in either
5771 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5772 into an ASN1_STRING type. A mask of permissible types is passed
5773 and it chooses the "minimal" type to use or an error if not type
5777 *) Add function equivalents to the various macros in asn1.h. The old
5778 macros are retained with an M_ prefix. Code inside the library can
5779 use the M_ macros. External code (including the openssl utility)
5780 should *NOT* in order to be "shared library friendly".
5783 *) Add various functions that can check a certificate's extensions
5784 to see if it usable for various purposes such as SSL client,
5785 server or S/MIME and CAs of these types. This is currently
5786 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5787 verification. Also added a -purpose flag to x509 utility to
5788 print out all the purposes.
5791 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5795 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5796 for, obtain and decode and extension and obtain its critical flag.
5797 This allows all the necessary extension code to be handled in a
5798 single function call.
5801 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5802 platforms. See crypto/rc4/rc4_enc.c for further details.
5805 *) New -noout option to asn1parse. This causes no output to be produced
5806 its main use is when combined with -strparse and -out to extract data
5807 from a file (which may not be in ASN.1 format).
5810 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5811 when producing the local key id.
5812 [Richard Levitte <levitte@stacken.kth.se>]
5814 *) New option -dhparam in s_server. This allows a DH parameter file to be
5815 stated explicitly. If it is not stated then it tries the first server
5816 certificate file. The previous behaviour hard coded the filename
5820 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5821 a public key to be input or output. For example:
5822 openssl rsa -in key.pem -pubout -out pubkey.pem
5823 Also added necessary DSA public key functions to handle this.
5826 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5827 in the message. This was handled by allowing
5828 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5829 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5831 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5832 to the end of the strings whereas this didn't. This would cause problems
5833 if strings read with d2i_ASN1_bytes() were later modified.
5834 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5836 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5837 data and it contains EOF it will end up returning an error. This is
5838 caused by input 46 bytes long. The cause is due to the way base64
5839 BIOs find the start of base64 encoded data. They do this by trying a
5840 trial decode on each line until they find one that works. When they
5841 do a flag is set and it starts again knowing it can pass all the
5842 data directly through the decoder. Unfortunately it doesn't reset
5843 the context it uses. This means that if EOF is reached an attempt
5844 is made to pass two EOFs through the context and this causes the
5845 resulting error. This can also cause other problems as well. As is
5846 usual with these problems it takes *ages* to find and the fix is
5847 trivial: move one line.
5848 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5850 *) Ugly workaround to get s_client and s_server working under Windows. The
5851 old code wouldn't work because it needed to select() on sockets and the
5852 tty (for keypresses and to see if data could be written). Win32 only
5853 supports select() on sockets so we select() with a 1s timeout on the
5854 sockets and then see if any characters are waiting to be read, if none
5855 are present then we retry, we also assume we can always write data to
5856 the tty. This isn't nice because the code then blocks until we've
5857 received a complete line of data and it is effectively polling the
5858 keyboard at 1s intervals: however it's quite a bit better than not
5859 working at all :-) A dedicated Windows application might handle this
5860 with an event loop for example.
5863 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5864 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5865 will be called when RSA_sign() and RSA_verify() are used. This is useful
5866 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5867 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5868 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5869 This necessitated the support of an extra signature type NID_md5_sha1
5870 for SSL signatures and modifications to the SSL library to use it instead
5871 of calling RSA_public_decrypt() and RSA_private_encrypt().
5874 *) Add new -verify -CAfile and -CApath options to the crl program, these
5875 will lookup a CRL issuers certificate and verify the signature in a
5876 similar way to the verify program. Tidy up the crl program so it
5877 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5878 less strict. It will now permit CRL extensions even if it is not
5879 a V2 CRL: this will allow it to tolerate some broken CRLs.
5882 *) Initialize all non-automatic variables each time one of the openssl
5883 sub-programs is started (this is necessary as they may be started
5884 multiple times from the "OpenSSL>" prompt).
5885 [Lennart Bang, Bodo Moeller]
5887 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5888 removing all other RSA functionality (this is what NO_RSA does). This
5889 is so (for example) those in the US can disable those operations covered
5890 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5894 *) Non-copying interface to BIO pairs.
5895 (still largely untested)
5898 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5899 ASCII string. This was handled independently in various places before.
5902 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5903 UTF8 strings a character at a time.
5906 *) Use client_version from client hello to select the protocol
5907 (s23_srvr.c) and for RSA client key exchange verification
5908 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5911 *) Add various utility functions to handle SPKACs, these were previously
5912 handled by poking round in the structure internals. Added new function
5913 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5914 print, verify and generate SPKACs. Based on an original idea from
5915 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5918 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5921 *) Allow the config file extension section to be overwritten on the
5922 command line. Based on an original idea from Massimiliano Pala
5923 <madwolf@comune.modena.it>. The new option is called -extensions
5924 and can be applied to ca, req and x509. Also -reqexts to override
5925 the request extensions in req and -crlexts to override the crl extensions
5929 *) Add new feature to the SPKAC handling in ca. Now you can include
5930 the same field multiple times by preceding it by "XXXX." for example:
5933 this is the same syntax as used in the req config file.
5936 *) Allow certificate extensions to be added to certificate requests. These
5937 are specified in a 'req_extensions' option of the req section of the
5938 config file. They can be printed out with the -text option to req but
5939 are otherwise ignored at present.
5942 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5943 data read consists of only the final block it would not decrypted because
5944 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5945 A misplaced 'break' also meant the decrypted final block might not be
5946 copied until the next read.
5949 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5950 a few extra parameters to the DH structure: these will be useful if
5951 for example we want the value of 'q' or implement X9.42 DH.
5954 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5955 provides hooks that allow the default DSA functions or functions on a
5956 "per key" basis to be replaced. This allows hardware acceleration and
5957 hardware key storage to be handled without major modification to the
5958 library. Also added low level modexp hooks and CRYPTO_EX structure and
5959 associated functions.
5962 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5963 as "read only": it can't be written to and the buffer it points to will
5964 not be freed. Reading from a read only BIO is much more efficient than
5965 a normal memory BIO. This was added because there are several times when
5966 an area of memory needs to be read from a BIO. The previous method was
5967 to create a memory BIO and write the data to it, this results in two
5968 copies of the data and an O(n^2) reading algorithm. There is a new
5969 function BIO_new_mem_buf() which creates a read only memory BIO from
5970 an area of memory. Also modified the PKCS#7 routines to use read only
5974 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5975 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5976 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5977 but a retry condition occured while trying to read the rest.
5980 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5981 NID_pkcs7_encrypted by default: this was wrong since this should almost
5982 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5983 the encrypted data type: this is a more sensible place to put it and it
5984 allows the PKCS#12 code to be tidied up that duplicated this
5988 *) Changed obj_dat.pl script so it takes its input and output files on
5989 the command line. This should avoid shell escape redirection problems
5993 *) Initial support for certificate extension requests, these are included
5994 in things like Xenroll certificate requests. Included functions to allow
5995 extensions to be obtained and added.
5998 *) -crlf option to s_client and s_server for sending newlines as
5999 CRLF (as required by many protocols).
6002 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6004 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6005 [Ralf S. Engelschall]
6007 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6008 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6010 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6014 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6015 DH parameters/keys (q is lost during that conversion, but the resulting
6016 DH parameters contain its length).
6018 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6019 much faster than DH_generate_parameters (which creates parameters
6020 where p = 2*q + 1), and also the smaller q makes DH computations
6021 much more efficient (160-bit exponentiation instead of 1024-bit
6022 exponentiation); so this provides a convenient way to support DHE
6023 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6024 utter importance to use
6025 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6027 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6028 when such DH parameters are used, because otherwise small subgroup
6029 attacks may become possible!
6032 *) Avoid memory leak in i2d_DHparams.
6035 *) Allow the -k option to be used more than once in the enc program:
6036 this allows the same encrypted message to be read by multiple recipients.
6039 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6040 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6041 it will always use the numerical form of the OID, even if it has a short
6045 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6046 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6047 otherwise bn_mod_exp was called. In the case of hardware keys for example
6048 no private key components need be present and it might store extra data
6049 in the RSA structure, which cannot be accessed from bn_mod_exp.
6050 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6051 private key operations.
6054 *) Added support for SPARC Linux.
6057 *) pem_password_cb function type incompatibly changed from
6058 typedef int pem_password_cb(char *buf, int size, int rwflag);
6060 ....(char *buf, int size, int rwflag, void *userdata);
6061 so that applications can pass data to their callbacks:
6062 The PEM[_ASN1]_{read,write}... functions and macros now take an
6063 additional void * argument, which is just handed through whenever
6064 the password callback is called.
6065 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6067 New function SSL_CTX_set_default_passwd_cb_userdata.
6069 Compatibility note: As many C implementations push function arguments
6070 onto the stack in reverse order, the new library version is likely to
6071 interoperate with programs that have been compiled with the old
6072 pem_password_cb definition (PEM_whatever takes some data that
6073 happens to be on the stack as its last argument, and the callback
6074 just ignores this garbage); but there is no guarantee whatsoever that
6077 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6078 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6079 problems not only on Windows, but also on some Unix platforms.
6080 To avoid problematic command lines, these definitions are now in an
6081 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6082 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6085 *) MIPS III/IV assembler module is reimplemented.
6088 *) More DES library cleanups: remove references to srand/rand and
6089 delete an unused file.
6092 *) Add support for the the free Netwide assembler (NASM) under Win32,
6093 since not many people have MASM (ml) and it can be hard to obtain.
6094 This is currently experimental but it seems to work OK and pass all
6095 the tests. Check out INSTALL.W32 for info.
6098 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6099 without temporary keys kept an extra copy of the server key,
6100 and connections with temporary keys did not free everything in case
6104 *) New function RSA_check_key and new openssl rsa option -check
6105 for verifying the consistency of RSA keys.
6106 [Ulf Moeller, Bodo Moeller]
6108 *) Various changes to make Win32 compile work:
6109 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6110 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6111 comparison" warnings.
6112 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6115 *) Add a debugging option to PKCS#5 v2 key generation function: when
6116 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6117 derived keys are printed to stderr.
6120 *) Copy the flags in ASN1_STRING_dup().
6121 [Roman E. Pavlov <pre@mo.msk.ru>]
6123 *) The x509 application mishandled signing requests containing DSA
6124 keys when the signing key was also DSA and the parameters didn't match.
6126 It was supposed to omit the parameters when they matched the signing key:
6127 the verifying software was then supposed to automatically use the CA's
6128 parameters if they were absent from the end user certificate.
6130 Omitting parameters is no longer recommended. The test was also
6131 the wrong way round! This was probably due to unusual behaviour in
6132 EVP_cmp_parameters() which returns 1 if the parameters match.
6133 This meant that parameters were omitted when they *didn't* match and
6134 the certificate was useless. Certificates signed with 'ca' didn't have
6136 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6138 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6139 The interface is as follows:
6140 Applications can use
6141 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6142 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6143 "off" is now the default.
6144 The library internally uses
6145 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6146 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6147 to disable memory-checking temporarily.
6149 Some inconsistent states that previously were possible (and were
6150 even the default) are now avoided.
6152 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6153 with each memory chunk allocated; this is occasionally more helpful
6154 than just having a counter.
6156 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6158 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6162 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6163 which largely parallels "options", but is for changing API behaviour,
6164 whereas "options" are about protocol behaviour.
6165 Initial "mode" flags are:
6167 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6168 a single record has been written.
6169 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6170 retries use the same buffer location.
6171 (But all of the contents must be
6175 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6178 *) Fix problems with no-hmac etc.
6179 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6181 *) New functions RSA_get_default_method(), RSA_set_method() and
6182 RSA_get_method(). These allows replacement of RSA_METHODs without having
6183 to mess around with the internals of an RSA structure.
6186 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6187 Also really enable memory leak checks in openssl.c and in some
6189 [Chad C. Mulligan, Bodo Moeller]
6191 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6192 up the length of negative integers. This has now been simplified to just
6193 store the length when it is first determined and use it later, rather
6194 than trying to keep track of where data is copied and updating it to
6196 [Steve Henson, reported by Brien Wheeler
6197 <bwheeler@authentica-security.com>]
6199 *) Add a new function PKCS7_signatureVerify. This allows the verification
6200 of a PKCS#7 signature but with the signing certificate passed to the
6201 function itself. This contrasts with PKCS7_dataVerify which assumes the
6202 certificate is present in the PKCS#7 structure. This isn't always the
6203 case: certificates can be omitted from a PKCS#7 structure and be
6204 distributed by "out of band" means (such as a certificate database).
6207 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6208 function prototypes in pem.h, also change util/mkdef.pl to add the
6209 necessary function names.
6212 *) mk1mf.pl (used by Windows builds) did not properly read the
6213 options set by Configure in the top level Makefile, and Configure
6214 was not even able to write more than one option correctly.
6215 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6218 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6219 file to be loaded from a BIO or FILE pointer. The BIO version will
6220 for example allow memory BIOs to contain config info.
6223 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6224 Whoever hopes to achieve shared-library compatibility across versions
6225 must use this, not the compile-time macro.
6226 (Exercise 0.9.4: Which is the minimum library version required by
6228 Note: All this applies only to multi-threaded programs, others don't
6232 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6233 through a BIO pair triggered the default case, i.e.
6234 SSLerr(...,SSL_R_UNKNOWN_STATE).
6237 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6238 can use the SSL library even if none of the specific BIOs is
6242 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6243 for the encoded length.
6244 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6246 *) Add initial documentation of the X509V3 functions.
6249 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6250 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6251 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6252 secure PKCS#8 private key format with a high iteration count.
6255 *) Fix determination of Perl interpreter: A perl or perl5
6256 _directory_ in $PATH was also accepted as the interpreter.
6257 [Ralf S. Engelschall]
6259 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6260 wrong with it but it was very old and did things like calling
6261 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6265 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6266 to use the new extension code.
6269 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6270 with macros. This should make it easier to change their form, add extra
6271 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6275 *) Add to configuration table a new entry that can specify an alternative
6276 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6277 according to Mark Crispin <MRC@Panda.COM>.
6281 *) DES CBC did not update the IV. Weird.
6284 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6285 Changing the behaviour of the former might break existing programs --
6286 where IV updating is needed, des_ncbc_encrypt can be used.
6289 *) When bntest is run from "make test" it drives bc to check its
6290 calculations, as well as internally checking them. If an internal check
6291 fails, it needs to cause bc to give a non-zero result or make test carries
6292 on without noticing the failure. Fixed.
6295 *) DES library cleanups.
6298 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6299 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6300 ciphers. NOTE: although the key derivation function has been verified
6301 against some published test vectors it has not been extensively tested
6302 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6306 *) Instead of "mkdir -p", which is not fully portable, use new
6307 Perl script "util/mkdir-p.pl".
6310 *) Rewrite the way password based encryption (PBE) is handled. It used to
6311 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6312 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6313 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6314 the 'parameter' field of the AlgorithmIdentifier is passed to the
6315 underlying key generation function so it must do its own ASN1 parsing.
6316 This has also changed the EVP_PBE_CipherInit() function which now has a
6317 'parameter' argument instead of literal salt and iteration count values
6318 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6321 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6322 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6323 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6324 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6325 value was just used as a "magic string" and not used directly its
6326 value doesn't matter.
6329 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6333 *) "linux-sparc64" configuration (ultrapenguin).
6334 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6335 "linux-sparc" configuration.
6336 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6338 *) config now generates no-xxx options for missing ciphers.
6341 *) Support the EBCDIC character set (work in progress).
6342 File ebcdic.c not yet included because it has a different license.
6343 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6345 *) Support BS2000/OSD-POSIX.
6346 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6348 *) Make callbacks for key generation use void * instead of char *.
6351 *) Make S/MIME samples compile (not yet tested).
6354 *) Additional typesafe stacks.
6357 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6361 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6363 *) New configuration variant "sco5-gcc".
6365 *) Updated some demos.
6366 [Sean O Riordain, Wade Scholine]
6368 *) Add missing BIO_free at exit of pkcs12 application.
6371 *) Fix memory leak in conf.c.
6374 *) Updates for Win32 to assembler version of MD5.
6377 *) Set #! path to perl in apps/der_chop to where we found it
6378 instead of using a fixed path.
6381 *) SHA library changes for irix64-mips4-cc.
6384 *) Improvements for VMS support.
6388 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6390 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6391 This also avoids the problems with SC4.2 and unpatched SC5.
6392 [Andy Polyakov <appro@fy.chalmers.se>]
6394 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6395 These are required because of the typesafe stack would otherwise break
6396 existing code. If old code used a structure member which used to be STACK
6397 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6398 sk_num or sk_value it would produce an error because the num, data members
6399 are not present in STACK_OF. Now it just produces a warning. sk_set
6400 replaces the old method of assigning a value to sk_value
6401 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6402 that does this will no longer work (and should use sk_set instead) but
6403 this could be regarded as a "questionable" behaviour anyway.
6406 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6407 correctly handle encrypted S/MIME data.
6410 *) Change type of various DES function arguments from des_cblock
6411 (which means, in function argument declarations, pointer to char)
6412 to des_cblock * (meaning pointer to array with 8 char elements),
6413 which allows the compiler to do more typechecking; it was like
6414 that back in SSLeay, but with lots of ugly casts.
6416 Introduce new type const_des_cblock.
6419 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6420 problems: find RecipientInfo structure that matches recipient certificate
6421 and initialise the ASN1 structures properly based on passed cipher.
6424 *) Belatedly make the BN tests actually check the results.
6427 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6428 to and from BNs: it was completely broken. New compilation option
6429 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6430 key elements as negative integers.
6433 *) Reorganize and speed up MD5.
6434 [Andy Polyakov <appro@fy.chalmers.se>]
6437 [Richard Levitte <richard@levitte.org>]
6439 *) New option -out to asn1parse to allow the parsed structure to be
6440 output to a file. This is most useful when combined with the -strparse
6441 option to examine the output of things like OCTET STRINGS.
6444 *) Make SSL library a little more fool-proof by not requiring any longer
6445 that SSL_set_{accept,connect}_state be called before
6446 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6447 in many applications because usually everything *appeared* to work as
6448 intended anyway -- now it really works as intended).
6451 *) Move openssl.cnf out of lib/.
6454 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6455 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6456 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6457 [Ralf S. Engelschall]
6459 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6460 handle PKCS#7 enveloped data properly.
6461 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6463 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6464 copying pointers. The cert_st handling is changed by this in
6465 various ways (and thus what used to be known as ctx->default_cert
6466 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6467 any longer when s->cert does not give us what we need).
6468 ssl_cert_instantiate becomes obsolete by this change.
6469 As soon as we've got the new code right (possibly it already is?),
6470 we have solved a couple of bugs of the earlier code where s->cert
6471 was used as if it could not have been shared with other SSL structures.
6473 Note that using the SSL API in certain dirty ways now will result
6474 in different behaviour than observed with earlier library versions:
6475 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6476 does not influence s as it used to.
6478 In order to clean up things more thoroughly, inside SSL_SESSION
6479 we don't use CERT any longer, but a new structure SESS_CERT
6480 that holds per-session data (if available); currently, this is
6481 the peer's certificate chain and, for clients, the server's certificate
6482 and temporary key. CERT holds only those values that can have
6483 meaningful defaults in an SSL_CTX.
6486 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6487 from the internal representation. Various PKCS#7 fixes: remove some
6488 evil casts and set the enc_dig_alg field properly based on the signing
6492 *) Allow PKCS#12 password to be set from the command line or the
6493 environment. Let 'ca' get its config file name from the environment
6494 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6498 *) Allow certificate policies extension to use an IA5STRING for the
6499 organization field. This is contrary to the PKIX definition but
6500 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6504 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6505 without disallowing inline assembler and the like for non-pedantic builds.
6508 *) Support Borland C++ builder.
6509 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6514 *) SHA-1 cleanups and performance enhancements.
6515 [Andy Polyakov <appro@fy.chalmers.se>]
6517 *) Sparc v8plus assembler for the bignum library.
6518 [Andy Polyakov <appro@fy.chalmers.se>]
6520 *) Accept any -xxx and +xxx compiler options in Configure.
6523 *) Update HPUX configuration.
6526 *) Add missing sk_<type>_unshift() function to safestack.h
6527 [Ralf S. Engelschall]
6529 *) New function SSL_CTX_use_certificate_chain_file that sets the
6530 "extra_cert"s in addition to the certificate. (This makes sense
6531 only for "PEM" format files, as chains as a whole are not
6535 *) Support verify_depth from the SSL API.
6536 x509_vfy.c had what can be considered an off-by-one-error:
6537 Its depth (which was not part of the external interface)
6538 was actually counting the number of certificates in a chain;
6539 now it really counts the depth.
6542 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6543 instead of X509err, which often resulted in confusing error
6544 messages since the error codes are not globally unique
6545 (e.g. an alleged error in ssl3_accept when a certificate
6546 didn't match the private key).
6548 *) New function SSL_CTX_set_session_id_context that allows to set a default
6549 value (so that you don't need SSL_set_session_id_context for each
6550 connection using the SSL_CTX).
6553 *) OAEP decoding bug fix.
6556 *) Support INSTALL_PREFIX for package builders, as proposed by
6560 *) New Configure options "threads" and "no-threads". For systems
6561 where the proper compiler options are known (currently Solaris
6562 and Linux), "threads" is the default.
6565 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6568 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6569 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6570 such as /usr/local/bin.
6573 *) "make linux-shared" to build shared libraries.
6574 [Niels Poppe <niels@netbox.org>]
6576 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6579 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6580 extension adding in x509 utility.
6583 *) Remove NOPROTO sections and error code comments.
6586 *) Partial rewrite of the DEF file generator to now parse the ANSI
6590 *) New Configure options --prefix=DIR and --openssldir=DIR.
6593 *) Complete rewrite of the error code script(s). It is all now handled
6594 by one script at the top level which handles error code gathering,
6595 header rewriting and C source file generation. It should be much better
6596 than the old method: it now uses a modified version of Ulf's parser to
6597 read the ANSI prototypes in all header files (thus the old K&R definitions
6598 aren't needed for error creation any more) and do a better job of
6599 translating function codes into names. The old 'ASN1 error code imbedded
6600 in a comment' is no longer necessary and it doesn't use .err files which
6601 have now been deleted. Also the error code call doesn't have to appear all
6602 on one line (which resulted in some large lines...).
6605 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6608 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6609 0 (which usually indicates a closed connection), but continue reading.
6612 *) Fix some race conditions.
6615 *) Add support for CRL distribution points extension. Add Certificate
6616 Policies and CRL distribution points documentation.
6619 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6622 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6623 8 of keying material. Merlin has also confirmed interop with this fix
6624 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6625 [Merlin Hughes <merlin@baltimore.ie>]
6627 *) Fix lots of warnings.
6628 [Richard Levitte <levitte@stacken.kth.se>]
6630 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6631 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6632 [Richard Levitte <levitte@stacken.kth.se>]
6634 *) Fix problems with sizeof(long) == 8.
6635 [Andy Polyakov <appro@fy.chalmers.se>]
6637 *) Change functions to ANSI C.
6640 *) Fix typos in error codes.
6641 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6643 *) Remove defunct assembler files from Configure.
6646 *) SPARC v8 assembler BIGNUM implementation.
6647 [Andy Polyakov <appro@fy.chalmers.se>]
6649 *) Support for Certificate Policies extension: both print and set.
6650 Various additions to support the r2i method this uses.
6653 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6654 return a const string when you are expecting an allocated buffer.
6657 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6658 types DirectoryString and DisplayText.
6661 *) Add code to allow r2i extensions to access the configuration database,
6662 add an LHASH database driver and add several ctx helper functions.
6665 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6666 fail when they extended the size of a BIGNUM.
6669 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6670 support typesafe stack.
6673 *) Fix typo in SSL_[gs]et_options().
6674 [Nils Frostberg <nils@medcom.se>]
6676 *) Delete various functions and files that belonged to the (now obsolete)
6677 old X509V3 handling code.
6680 *) New Configure option "rsaref".
6683 *) Don't auto-generate pem.h.
6686 *) Introduce type-safe ASN.1 SETs.
6689 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6690 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6692 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6693 that links with OpenSSL (well at least cause lots of warnings), but fear
6694 not: the conversion is trivial, and it eliminates loads of evil casts. A
6695 few STACKed things have been converted already. Feel free to convert more.
6696 In the fullness of time, I'll do away with the STACK type altogether.
6699 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6700 specified in <certfile> by updating the entry in the index.txt file.
6701 This way one no longer has to edit the index.txt file manually for
6702 revoking a certificate. The -revoke option does the gory details now.
6703 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6705 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6706 `-text' option at all and this way the `-noout -text' combination was
6707 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6708 [Ralf S. Engelschall]
6710 *) Make sure a corresponding plain text error message exists for the
6711 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6712 verify callback function determined that a certificate was revoked.
6713 [Ralf S. Engelschall]
6715 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6716 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6717 all available cipers including rc5, which was forgotten until now.
6718 In order to let the testing shell script know which algorithms
6719 are available, a new (up to now undocumented) command
6720 "openssl list-cipher-commands" is used.
6723 *) Bugfix: s_client occasionally would sleep in select() when
6724 it should have checked SSL_pending() first.
6727 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6728 the raw DSA values prior to ASN.1 encoding.
6731 *) Tweaks to Configure
6732 [Niels Poppe <niels@netbox.org>]
6734 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6738 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6741 *) New config option to avoid instructions that are illegal on the 80386.
6742 The default code is faster, but requires at least a 486.
6745 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6746 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6747 same as SSL2_VERSION anyway.
6750 *) New "-showcerts" option for s_client.
6753 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6754 application. Various cleanups and fixes.
6757 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6758 modify error routines to work internally. Add error codes and PBE init
6759 to library startup routines.
6762 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6763 packing functions to asn1 and evp. Changed function names and error
6764 codes along the way.
6767 *) PKCS12 integration: and so it begins... First of several patches to
6768 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6769 objects to objects.h
6772 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6773 and display support for Thawte strong extranet extension.
6776 *) Add LinuxPPC support.
6777 [Jeff Dubrule <igor@pobox.org>]
6779 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6780 bn_div_words in alpha.s.
6781 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6783 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6784 OAEP isn't supported when OpenSSL is built with RSAref.
6785 [Ulf Moeller <ulf@fitug.de>]
6787 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6788 so they no longer are missing under -DNOPROTO.
6789 [Soren S. Jorvang <soren@t.dk>]
6792 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6794 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6795 doesn't work when the session is reused. Coming soon!
6798 *) Fix a security hole, that allows sessions to be reused in the wrong
6799 context thus bypassing client cert protection! All software that uses
6800 client certs and session caches in multiple contexts NEEDS PATCHING to
6801 allow session reuse! A fuller solution is in the works.
6802 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6804 *) Some more source tree cleanups (removed obsolete files
6805 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6806 permission on "config" script to be executable) and a fix for the INSTALL
6808 [Ulf Moeller <ulf@fitug.de>]
6810 *) Remove some legacy and erroneous uses of malloc, free instead of
6812 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6814 *) Make rsa_oaep_test return non-zero on error.
6815 [Ulf Moeller <ulf@fitug.de>]
6817 *) Add support for native Solaris shared libraries. Configure
6818 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6819 if someone would make that last step automatic.
6820 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6822 *) ctx_size was not built with the right compiler during "make links". Fixed.
6825 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6826 except NULL ciphers". This means the default cipher list will no longer
6827 enable NULL ciphers. They need to be specifically enabled e.g. with
6828 the string "DEFAULT:eNULL".
6831 *) Fix to RSA private encryption routines: if p < q then it would
6832 occasionally produce an invalid result. This will only happen with
6833 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6836 *) Be less restrictive and allow also `perl util/perlpath.pl
6837 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6838 because this way one can also use an interpreter named `perl5' (which is
6839 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6840 installed as `perl').
6841 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6843 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6844 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6846 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6847 advapi32.lib to Win32 build and change the pem test comparision
6848 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6849 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6850 and crypto/des/ede_cbcm_enc.c.
6853 *) DES quad checksum was broken on big-endian architectures. Fixed.
6856 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6857 Win32 test batch file so it (might) work again. The Win32 test batch file
6858 is horrible: I feel ill....
6861 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6862 in e_os.h. Audit of header files to check ANSI and non ANSI
6863 sections: 10 functions were absent from non ANSI section and not exported
6864 from Windows DLLs. Fixed up libeay.num for new functions.
6867 *) Make `openssl version' output lines consistent.
6868 [Ralf S. Engelschall]
6870 *) Fix Win32 symbol export lists for BIO functions: Added
6871 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6872 to ms/libeay{16,32}.def.
6873 [Ralf S. Engelschall]
6875 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6876 fine under Unix and passes some trivial tests I've now added. But the
6877 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6878 added to make sure no one expects that this stuff really works in the
6879 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6880 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6882 [Ralf S. Engelschall]
6884 *) Fix the generation of two part addresses in perl.
6885 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6887 *) Add config entry for Linux on MIPS.
6888 [John Tobey <jtobey@channel1.com>]
6890 *) Make links whenever Configure is run, unless we are on Windoze.
6893 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6894 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6898 *) Add a useful kludge to allow package maintainers to specify compiler and
6899 other platforms details on the command line without having to patch the
6900 Configure script everytime: One now can use ``perl Configure
6901 <id>:<details>'', i.e. platform ids are allowed to have details appended
6902 to them (seperated by colons). This is treated as there would be a static
6903 pre-configured entry in Configure's %table under key <id> with value
6904 <details> and ``perl Configure <id>'' is called. So, when you want to
6905 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6906 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6907 now, which overrides the FreeBSD-elf entry on-the-fly.
6908 [Ralf S. Engelschall]
6910 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6913 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6914 on the `perl Configure ...' command line. This way one can compile
6915 OpenSSL libraries with Position Independent Code (PIC) which is needed
6916 for linking it into DSOs.
6917 [Ralf S. Engelschall]
6919 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6923 *) Cleaned up the LICENSE document: The official contact for any license
6924 questions now is the OpenSSL core team under openssl-core@openssl.org.
6925 And add a paragraph about the dual-license situation to make sure people
6926 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6927 to the OpenSSL toolkit.
6928 [Ralf S. Engelschall]
6930 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6931 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6932 Additonally cleaned up the `make links' target: Remove unnecessary
6933 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6934 to speed processing and no longer clutter the display with confusing
6935 stuff. Instead only the actually done links are displayed.
6936 [Ralf S. Engelschall]
6938 *) Permit null encryption ciphersuites, used for authentication only. It used
6939 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6940 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6944 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6945 signed attributes when verifying signatures (this would break them),
6946 the detached data encoding was wrong and public keys obtained using
6947 X509_get_pubkey() weren't freed.
6950 *) Add text documentation for the BUFFER functions. Also added a work around
6951 to a Win95 console bug. This was triggered by the password read stuff: the
6952 last character typed gets carried over to the next fread(). If you were
6953 generating a new cert request using 'req' for example then the last
6954 character of the passphrase would be CR which would then enter the first
6958 *) Added the new `Includes OpenSSL Cryptography Software' button as
6959 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6960 button and can be used by applications based on OpenSSL to show the
6961 relationship to the OpenSSL project.
6962 [Ralf S. Engelschall]
6964 *) Remove confusing variables in function signatures in files
6965 ssl/ssl_lib.c and ssl/ssl.h.
6966 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6968 *) Don't install bss_file.c under PREFIX/include/
6969 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6971 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6972 functions that return function pointers and has support for NT specific
6973 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6974 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6975 unsigned to signed types: this was killing the Win32 compile.
6978 *) Add new certificate file to stack functions,
6979 SSL_add_dir_cert_subjects_to_stack() and
6980 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6981 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6982 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6983 This means that Apache-SSL and similar packages don't have to mess around
6984 to add as many CAs as they want to the preferred list.
6987 *) Experiment with doxygen documentation. Currently only partially applied to
6989 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6990 openssl.doxy as the configuration file.
6993 *) Get rid of remaining C++-style comments which strict C compilers hate.
6994 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6996 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6997 compiled in by default: it has problems with large keys.
7000 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7001 DH private keys and/or callback functions which directly correspond to
7002 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7003 is needed for applications which have to configure certificates on a
7004 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7006 For the RSA certificate situation is makes no difference, but
7007 for the DSA certificate situation this fixes the "no shared cipher"
7008 problem where the OpenSSL cipher selection procedure failed because the
7009 temporary keys were not overtaken from the context and the API provided
7010 no way to reconfigure them.
7011 The new functions now let applications reconfigure the stuff and they
7012 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7013 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7014 non-public-API function ssl_cert_instantiate() is used as a helper
7015 function and also to reduce code redundancy inside ssl_rsa.c.
7016 [Ralf S. Engelschall]
7018 *) Move s_server -dcert and -dkey options out of the undocumented feature
7019 area because they are useful for the DSA situation and should be
7020 recognized by the users.
7021 [Ralf S. Engelschall]
7023 *) Fix the cipher decision scheme for export ciphers: the export bits are
7024 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7025 SSL_EXP_MASK. So, the original variable has to be used instead of the
7026 already masked variable.
7027 [Richard Levitte <levitte@stacken.kth.se>]
7029 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7030 [Richard Levitte <levitte@stacken.kth.se>]
7032 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7033 from `int' to `unsigned int' because it's a length and initialized by
7034 EVP_DigestFinal() which expects an `unsigned int *'.
7035 [Richard Levitte <levitte@stacken.kth.se>]
7037 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7038 script. Instead use the usual Shell->Perl transition trick.
7039 [Ralf S. Engelschall]
7041 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7042 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7043 -noout -modulus' as it's already the case for `openssl rsa -noout
7044 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7045 currently the public key is printed (a decision which was already done by
7046 `openssl dsa -modulus' in the past) which serves a similar purpose.
7047 Additionally the NO_RSA no longer completely removes the whole -modulus
7048 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7050 [Ralf S. Engelschall]
7052 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7053 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7054 [Arne Ansper <arne@ats.cyber.ee>]
7056 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7057 to be added. Now both 'req' and 'ca' can use new objects defined in the
7061 *) Add cool BIO that does syslog (or event log on NT).
7062 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7064 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7065 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7066 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7067 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7070 *) Add preliminary config info for new extension code.
7073 *) Make RSA_NO_PADDING really use no padding.
7074 [Ulf Moeller <ulf@fitug.de>]
7076 *) Generate errors when private/public key check is done.
7079 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7080 for some CRL extensions and new objects added.
7083 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7084 key usage extension and fuller support for authority key id.
7087 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7088 padding method for RSA, which is recommended for new applications in PKCS
7089 #1 v2.0 (RFC 2437, October 1998).
7090 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7091 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7092 against Bleichbacher's attack on RSA.
7093 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7096 *) Updates to the new SSL compression code
7097 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7099 *) Fix so that the version number in the master secret, when passed
7100 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7101 (because the server will not accept higher), that the version number
7102 is 0x03,0x01, not 0x03,0x00
7103 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7105 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7106 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7107 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7110 *) Support for RAW extensions where an arbitrary extension can be
7111 created by including its DER encoding. See apps/openssl.cnf for
7115 *) Make sure latest Perl versions don't interpret some generated C array
7116 code as Perl array code in the crypto/err/err_genc.pl script.
7117 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7119 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7120 not many people have the assembler. Various Win32 compilation fixes and
7121 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7125 *) Modify configure script 'Configure' to automatically create crypto/date.h
7126 file under Win32 and also build pem.h from pem.org. New script
7127 util/mkfiles.pl to create the MINFO file on environments that can't do a
7128 'make files': perl util/mkfiles.pl >MINFO should work.
7131 *) Major rework of DES function declarations, in the pursuit of correctness
7132 and purity. As a result, many evil casts evaporated, and some weirdness,
7133 too. You may find this causes warnings in your code. Zapping your evil
7134 casts will probably fix them. Mostly.
7137 *) Fix for a typo in asn1.h. Bug fix to object creation script
7138 obj_dat.pl. It considered a zero in an object definition to mean
7139 "end of object": none of the objects in objects.h have any zeros
7140 so it wasn't spotted.
7141 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7143 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7144 Masking (CBCM). In the absence of test vectors, the best I have been able
7145 to do is check that the decrypt undoes the encrypt, so far. Send me test
7146 vectors if you have them.
7149 *) Correct calculation of key length for export ciphers (too much space was
7150 allocated for null ciphers). This has not been tested!
7153 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7154 message is now correct (it understands "crypto" and "ssl" on its
7155 command line). There is also now an "update" option. This will update
7156 the util/ssleay.num and util/libeay.num files with any new functions.
7158 perl util/mkdef.pl crypto ssl update
7159 it will update them.
7162 *) Overhauled the Perl interface (perl/*):
7163 - ported BN stuff to OpenSSL's different BN library
7164 - made the perl/ source tree CVS-aware
7165 - renamed the package from SSLeay to OpenSSL (the files still contain
7166 their history because I've copied them in the repository)
7167 - removed obsolete files (the test scripts will be replaced
7168 by better Test::Harness variants in the future)
7169 [Ralf S. Engelschall]
7171 *) First cut for a very conservative source tree cleanup:
7172 1. merge various obsolete readme texts into doc/ssleay.txt
7173 where we collect the old documents and readme texts.
7174 2. remove the first part of files where I'm already sure that we no
7175 longer need them because of three reasons: either they are just temporary
7176 files which were left by Eric or they are preserved original files where
7177 I've verified that the diff is also available in the CVS via "cvs diff
7178 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7179 the crypto/md/ stuff).
7180 [Ralf S. Engelschall]
7182 *) More extension code. Incomplete support for subject and issuer alt
7183 name, issuer and authority key id. Change the i2v function parameters
7184 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7185 what that's for :-) Fix to ASN1 macro which messed up
7186 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7189 *) Preliminary support for ENUMERATED type. This is largely copied from the
7193 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7194 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7196 *) Make sure `make rehash' target really finds the `openssl' program.
7197 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7199 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7200 like to hear about it if this slows down other processors.
7203 *) Add CygWin32 platform information to Configure script.
7204 [Alan Batie <batie@aahz.jf.intel.com>]
7206 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7207 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7209 *) New program nseq to manipulate netscape certificate sequences
7212 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7216 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7217 but the BN code had some problems that would cause failures when
7218 doing certificate verification and some other functions.
7219 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7221 *) Add ASN1 and PEM code to support netscape certificate sequences.
7224 *) Add ASN1 and PEM code to support netscape certificate sequences.
7227 *) Add several PKIX and private extended key usage OIDs.
7230 *) Modify the 'ca' program to handle the new extension code. Modify
7231 openssl.cnf for new extension format, add comments.
7234 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7235 and add a sample to openssl.cnf so req -x509 now adds appropriate
7239 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7240 error code, add initial support to X509_print() and x509 application.
7243 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7244 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7245 stuff is currently isolated and isn't even compiled yet.
7248 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7249 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7250 Removed the versions check from X509 routines when loading extensions:
7251 this allows certain broken certificates that don't set the version
7252 properly to be processed.
7255 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7256 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7257 can still be regenerated with "make depend".
7260 *) Spelling mistake in C version of CAST-128.
7261 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7263 *) Changes to the error generation code. The perl script err-code.pl
7264 now reads in the old error codes and retains the old numbers, only
7265 adding new ones if necessary. It also only changes the .err files if new
7266 codes are added. The makefiles have been modified to only insert errors
7267 when needed (to avoid needlessly modifying header files). This is done
7268 by only inserting errors if the .err file is newer than the auto generated
7269 C file. To rebuild all the error codes from scratch (the old behaviour)
7270 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7271 or delete all the .err files.
7274 *) CAST-128 was incorrectly implemented for short keys. The C version has
7275 been fixed, but is untested. The assembler versions are also fixed, but
7276 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7277 to regenerate it if needed.
7278 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7279 Hagino <itojun@kame.net>]
7281 *) File was opened incorrectly in randfile.c.
7282 [Ulf Möller <ulf@fitug.de>]
7284 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7285 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7286 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7287 al: it's just almost always a UTCTime. Note this patch adds new error
7288 codes so do a "make errors" if there are problems.
7291 *) Correct Linux 1 recognition in config.
7292 [Ulf Möller <ulf@fitug.de>]
7294 *) Remove pointless MD5 hash when using DSA keys in ca.
7295 [Anonymous <nobody@replay.com>]
7297 *) Generate an error if given an empty string as a cert directory. Also
7298 generate an error if handed NULL (previously returned 0 to indicate an
7299 error, but didn't set one).
7300 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7302 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7305 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7306 parameters. This was causing a warning which killed off the Win32 compile.
7309 *) Remove C++ style comments from crypto/bn/bn_local.h.
7310 [Neil Costigan <neil.costigan@celocom.com>]
7312 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7313 based on a text string, looking up short and long names and finally
7314 "dot" format. The "dot" format stuff didn't work. Added new function
7315 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7316 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7317 OID is not part of the table.
7320 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7321 X509_LOOKUP_by_alias().
7324 *) Sort openssl functions by name.
7327 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7328 encryption from sample DSA keys (in case anyone is interested the password
7332 *) Make _all_ *_free functions accept a NULL pointer.
7333 [Frans Heymans <fheymans@isaserver.be>]
7335 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7337 [Anonymous <nobody@replay.com>]
7339 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7340 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7342 *) Don't blow it for numeric -newkey arguments to apps/req.
7343 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7345 *) Temp key "for export" tests were wrong in s3_srvr.c.
7346 [Anonymous <nobody@replay.com>]
7348 *) Add prototype for temp key callback functions
7349 SSL_CTX_set_tmp_{rsa,dh}_callback().
7352 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7353 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7356 *) X509_name_add_entry() freed the wrong thing after an error.
7357 [Arne Ansper <arne@ats.cyber.ee>]
7359 *) rsa_eay.c would attempt to free a NULL context.
7360 [Arne Ansper <arne@ats.cyber.ee>]
7362 *) BIO_s_socket() had a broken should_retry() on Windoze.
7363 [Arne Ansper <arne@ats.cyber.ee>]
7365 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7366 [Arne Ansper <arne@ats.cyber.ee>]
7368 *) Make sure the already existing X509_STORE->depth variable is initialized
7369 in X509_STORE_new(), but document the fact that this variable is still
7370 unused in the certificate verification process.
7371 [Ralf S. Engelschall]
7373 *) Fix the various library and apps files to free up pkeys obtained from
7374 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7377 *) Fix reference counting in X509_PUBKEY_get(). This makes
7378 demos/maurice/example2.c work, amongst others, probably.
7379 [Steve Henson and Ben Laurie]
7381 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7382 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7383 are no longer created. This way we have a single and consistent command
7384 line interface `openssl <command>', similar to `cvs <command>'.
7385 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7387 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7388 BIT STRING wrapper always have zero unused bits.
7391 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7394 *) Make the top-level INSTALL documentation easier to understand.
7397 *) Makefiles updated to exit if an error occurs in a sub-directory
7398 make (including if user presses ^C) [Paul Sutton]
7400 *) Make Montgomery context stuff explicit in RSA data structure.
7403 *) Fix build order of pem and err to allow for generated pem.h.
7406 *) Fix renumbering bug in X509_NAME_delete_entry().
7409 *) Enhanced the err-ins.pl script so it makes the error library number
7410 global and can add a library name. This is needed for external ASN1 and
7411 other error libraries.
7414 *) Fixed sk_insert which never worked properly.
7417 *) Fix ASN1 macros so they can handle indefinite length construted
7418 EXPLICIT tags. Some non standard certificates use these: they can now
7422 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7423 into a single doc/ssleay.txt bundle. This way the information is still
7424 preserved but no longer messes up this directory. Now it's new room for
7425 the new set of documenation files.
7426 [Ralf S. Engelschall]
7428 *) SETs were incorrectly DER encoded. This was a major pain, because they
7429 shared code with SEQUENCEs, which aren't coded the same. This means that
7430 almost everything to do with SETs or SEQUENCEs has either changed name or
7431 number of arguments.
7432 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7434 *) Fix test data to work with the above.
7437 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7438 was already fixed by Eric for 0.9.1 it seems.
7439 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7441 *) Autodetect FreeBSD3.
7444 *) Fix various bugs in Configure. This affects the following platforms:
7448 unixware-2.0-pentium
7452 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7453 before they are needed.
7456 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7460 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7462 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7463 changed SSLeay to OpenSSL in version strings.
7464 [Ralf S. Engelschall]
7466 *) Some fixups to the top-level documents.
7469 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7470 because the symlink to include/ was missing.
7471 [Ralf S. Engelschall]
7473 *) Incorporated the popular no-RSA/DSA-only patches
7474 which allow to compile a RSA-free SSLeay.
7475 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7477 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7478 when "ssleay" is still not found.
7479 [Ralf S. Engelschall]
7481 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7482 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7484 *) Updated the README file.
7485 [Ralf S. Engelschall]
7487 *) Added various .cvsignore files in the CVS repository subdirs
7488 to make a "cvs update" really silent.
7489 [Ralf S. Engelschall]
7491 *) Recompiled the error-definition header files and added
7492 missing symbols to the Win32 linker tables.
7493 [Ralf S. Engelschall]
7495 *) Cleaned up the top-level documents;
7496 o new files: CHANGES and LICENSE
7497 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7498 o merged COPYRIGHT into LICENSE
7499 o removed obsolete TODO file
7500 o renamed MICROSOFT to INSTALL.W32
7501 [Ralf S. Engelschall]
7503 *) Removed dummy files from the 0.9.1b source tree:
7504 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7505 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7506 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7507 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7508 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7509 [Ralf S. Engelschall]
7511 *) Added various platform portability fixes.
7514 *) The Genesis of the OpenSSL rpject:
7515 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7516 Young and Tim J. Hudson created while they were working for C2Net until
7518 [The OpenSSL Project]
7521 Changes between 0.9.0b and 0.9.1b [not released]
7523 *) Updated a few CA certificates under certs/
7526 *) Changed some BIGNUM api stuff.
7529 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7530 DGUX x86, Linux Alpha, etc.
7533 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7534 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7538 *) Add -strparse option to asn1pars program which parses nested
7540 [Dr Stephen Henson <shenson@bigfoot.com>]
7542 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7545 *) DSA fix for "ca" program.
7548 *) Added "-genkey" option to "dsaparam" program.
7551 *) Added RIPE MD160 (rmd160) message digest.
7554 *) Added -a (all) option to "ssleay version" command.
7557 *) Added PLATFORM define which is the id given to Configure.
7560 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7563 *) Extended the ASN.1 parser routines.
7566 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7569 *) Added a BN_CTX to the BN library.
7572 *) Fixed the weak key values in DES library
7575 *) Changed API in EVP library for cipher aliases.
7578 *) Added support for RC2/64bit cipher.
7581 *) Converted the lhash library to the crypto/mem.c functions.
7584 *) Added more recognized ASN.1 object ids.
7587 *) Added more RSA padding checks for SSL/TLS.
7590 *) Added BIO proxy/filter functionality.
7593 *) Added extra_certs to SSL_CTX which can be used
7594 send extra CA certificates to the client in the CA cert chain sending
7595 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7598 *) Now Fortezza is denied in the authentication phase because
7599 this is key exchange mechanism is not supported by SSLeay at all.
7602 *) Additional PKCS1 checks.
7605 *) Support the string "TLSv1" for all TLS v1 ciphers.
7608 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7609 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7612 *) Fixed a few memory leaks.
7615 *) Fixed various code and comment typos.
7618 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7619 bytes sent in the client random.
7620 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob