5 Changes between 0.9.8 and 0.9.8a [XX xxx XXXX]
7 *) Add two function to clear and return the verify parameter flags.
10 *) Keep cipherlists sorted in the source instead of sorting them at
11 runtime, thus removing the need for a lock.
14 *) Avoid some small subgroup attacks in Diffie-Hellman.
15 [Nick Mathewson and Ben Laurie]
17 *) Add functions for well-known primes.
20 *) Extended Windows CE support.
21 [Satoshi Nakamura and Andy Polyakov]
23 *) Initialize SSL_METHOD structures at compile time instead of during
24 runtime, thus removing the need for a lock.
27 *) Make PKCS7_decrypt() work even if no certificate is supplied by
28 attempting to decrypt each encrypted key in turn. Add support to
32 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
34 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
37 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
38 key into the same file any more.
41 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
44 *) Add -utf8 command line and config file option to 'ca'.
45 [Stefan <stf@udoma.org]
47 *) Removed the macro des_crypt(), as it seems to conflict with some
48 libraries. Use DES_crypt().
51 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
52 involves renaming the source and generated shared-libs for
53 both. The engines will accept the corrected or legacy ids
54 ('ncipher' and '4758_cca' respectively) when binding. NB,
55 this only applies when building 'shared'.
56 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
58 *) Add attribute functions to EVP_PKEY structure. Modify
59 PKCS12_create() to recognize a CSP name attribute and
60 use it. Make -CSP option work again in pkcs12 utility.
63 *) Add new functionality to the bn blinding code:
64 - automatic re-creation of the BN_BLINDING parameters after
65 a fixed number of uses (currently 32)
66 - add new function for parameter creation
67 - introduce flags to control the update behaviour of the
68 BN_BLINDING parameters
69 - hide BN_BLINDING structure
70 Add a second BN_BLINDING slot to the RSA structure to improve
71 performance when a single RSA object is shared among several
75 *) Add support for DTLS.
76 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
78 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
79 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
82 *) Remove buggy and incompletet DH cert support from
83 ssl/ssl_rsa.c and ssl/s3_both.c
86 *) Use SHA-1 instead of MD5 as the default digest algorithm for
87 the apps/openssl applications.
90 *) Compile clean with "-Wall -Wmissing-prototypes
91 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
92 DEBUG_SAFESTACK must also be set.
95 *) Change ./Configure so that certain algorithms can be disabled by default.
96 The new counterpiece to "no-xxx" is "enable-xxx".
98 The patented RC5 and MDC2 algorithms will now be disabled unless
99 "enable-rc5" and "enable-mdc2", respectively, are specified.
101 (IDEA remains enabled despite being patented. This is because IDEA
102 is frequently required for interoperability, and there is no license
103 fee for non-commercial use. As before, "no-idea" can be used to
104 avoid this algorithm.)
108 *) Add processing of proxy certificates (see RFC 3820). This work was
109 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
110 EGEE (Enabling Grids for E-science in Europe).
113 *) RC4 performance overhaul on modern architectures/implementations, such
114 as Intel P4, IA-64 and AMD64.
117 *) New utility extract-section.pl. This can be used specify an alternative
118 section number in a pod file instead of having to treat each file as
119 a separate case in Makefile. This can be done by adding two lines to the
122 =for comment openssl_section:XXX
124 The blank line is mandatory.
128 *) New arguments -certform, -keyform and -pass for s_client and s_server
129 to allow alternative format key and certificate files and passphrase
133 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
134 update associated structures and add various utility functions.
136 Add new policy related verify parameters, include policy checking in
137 standard verify code. Enhance 'smime' application with extra parameters
138 to support policy checking and print out.
141 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
142 Nehemiah processors. These extensions support AES encryption in hardware
143 as well as RNG (though RNG support is currently disabled).
144 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
146 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
149 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
150 [Andy Polyakov and a number of other people]
152 *) Improved PowerPC platform support. Most notably BIGNUM assembler
153 implementation contributed by IBM.
154 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
156 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
157 exponent rather than 'unsigned long'. There is a corresponding change to
158 the new 'rsa_keygen' element of the RSA_METHOD structure.
159 [Jelte Jansen, Geoff Thorpe]
161 *) Functionality for creating the initial serial number file is now
162 moved from CA.pl to the 'ca' utility with a new option -create_serial.
164 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
165 number file to 1, which is bound to cause problems. To avoid
166 the problems while respecting compatibility between different 0.9.7
167 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
168 CA.pl for serial number initialization. With the new release 0.9.8,
169 we can fix the problem directly in the 'ca' utility.)
172 *) Reduced header interdepencies by declaring more opaque objects in
173 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
174 give fewer recursive includes, which could break lazy source code - so
175 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
176 developers should define this symbol when building and using openssl to
177 ensure they track the recommended behaviour, interfaces, [etc], but
178 backwards-compatible behaviour prevails when this isn't defined.
181 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
184 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
185 This will generate a random key of the appropriate length based on the
186 cipher context. The EVP_CIPHER can provide its own random key generation
187 routine to support keys of a specific form. This is used in the des and
188 3des routines to generate a key of the correct parity. Update S/MIME
189 code to use new functions and hence generate correct parity DES keys.
190 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
191 valid (weak or incorrect parity).
194 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
195 as looking them up. This is useful when the verified structure may contain
196 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
197 present unless the new PKCS7_NO_CRL flag is asserted.
200 *) Extend ASN1 oid configuration module. It now additionally accepts the
203 shortName = some long name, 1.2.3.4
206 *) Reimplemented the BN_CTX implementation. There is now no more static
207 limitation on the number of variables it can handle nor the depth of the
208 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
209 information can now expand as required, and rather than having a single
210 static array of bignums, BN_CTX now uses a linked-list of such arrays
211 allowing it to expand on demand whilst maintaining the usefulness of
215 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
216 to allow all RSA operations to function using a single BN_CTX.
219 *) Preliminary support for certificate policy evaluation and checking. This
220 is initially intended to pass the tests outlined in "Conformance Testing
221 of Relying Party Client Certificate Path Processing Logic" v1.07.
224 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
225 remained unused and not that useful. A variety of other little bignum
226 tweaks and fixes have also been made continuing on from the audit (see
230 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
231 associated ASN1, EVP and SSL functions and old ASN1 macros.
234 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
235 and this should never fail. So the return value from the use of
236 BN_set_word() (which can fail due to needless expansion) is now deprecated;
237 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
240 *) BN_CTX_get() should return zero-valued bignums, providing the same
241 initialised value as BN_new().
242 [Geoff Thorpe, suggested by Ulf Möller]
244 *) Support for inhibitAnyPolicy certificate extension.
247 *) An audit of the BIGNUM code is underway, for which debugging code is
248 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
249 is considered valid when processing BIGNUMs, and causes execution to
250 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
251 further steps are taken to deliberately pollute unused data in BIGNUM
252 structures to try and expose faulty code further on. For now, openssl will
253 (in its default mode of operation) continue to tolerate the inconsistent
254 forms that it has tolerated in the past, but authors and packagers should
255 consider trying openssl and their own applications when compiled with
256 these debugging symbols defined. It will help highlight potential bugs in
257 their own code, and will improve the test coverage for OpenSSL itself. At
258 some point, these tighter rules will become openssl's default to improve
259 maintainability, though the assert()s and other overheads will remain only
260 in debugging configurations. See bn.h for more details.
261 [Geoff Thorpe, Nils Larsch, Ulf Möller]
263 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
264 that can only be obtained through BN_CTX_new() (which implicitly
265 initialises it). The presence of this function only made it possible
266 to overwrite an existing structure (and cause memory leaks).
269 *) Because of the callback-based approach for implementing LHASH as a
270 template type, lh_insert() adds opaque objects to hash-tables and
271 lh_doall() or lh_doall_arg() are typically used with a destructor callback
272 to clean up those corresponding objects before destroying the hash table
273 (and losing the object pointers). So some over-zealous constifications in
274 LHASH have been relaxed so that lh_insert() does not take (nor store) the
275 objects as "const" and the lh_doall[_arg] callback wrappers are not
276 prototyped to have "const" restrictions on the object pointers they are
277 given (and so aren't required to cast them away any more).
280 *) The tmdiff.h API was so ugly and minimal that our own timing utility
281 (speed) prefers to use its own implementation. The two implementations
282 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
283 its object type properly exposed (MS_TM) instead of casting to/from "char
284 *". This may still change yet if someone realises MS_TM and "ms_time_***"
285 aren't necessarily the greatest nomenclatures - but this is what was used
286 internally to the implementation so I've used that for now.
289 *) Ensure that deprecated functions do not get compiled when
290 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
291 the self-tests were still using deprecated key-generation functions so
292 these have been updated also.
295 *) Reorganise PKCS#7 code to separate the digest location functionality
296 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
297 New function PKCS7_set_digest() to set the digest type for PKCS#7
298 digestedData type. Add additional code to correctly generate the
299 digestedData type and add support for this type in PKCS7 initialization
303 *) New function PKCS7_set0_type_other() this initializes a PKCS7
304 structure of type "other".
307 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
308 sure the loop does correctly stop and breaking ("division by zero")
309 modulus operations are not performed. The (pre-generated) prime
310 table crypto/bn/bn_prime.h was already correct, but it could not be
311 re-generated on some platforms because of the "division by zero"
312 situation in the script.
313 [Ralf S. Engelschall]
315 *) Update support for ECC-based TLS ciphersuites according to
316 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
317 SHA-1 now is only used for "small" curves (where the
318 representation of a field element takes up to 24 bytes); for
319 larger curves, the field element resulting from ECDH is directly
320 used as premaster secret.
321 [Douglas Stebila (Sun Microsystems Laboratories)]
323 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
324 curve secp160r1 to the tests.
325 [Douglas Stebila (Sun Microsystems Laboratories)]
327 *) Add the possibility to load symbols globally with DSO.
328 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
330 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
331 control of the error stack.
334 *) Add support for STORE in ENGINE.
337 *) Add the STORE type. The intention is to provide a common interface
338 to certificate and key stores, be they simple file-based stores, or
339 HSM-type store, or LDAP stores, or...
340 NOTE: The code is currently UNTESTED and isn't really used anywhere.
343 *) Add a generic structure called OPENSSL_ITEM. This can be used to
344 pass a list of arguments to any function as well as provide a way
345 for a function to pass data back to the caller.
348 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
349 works like BUF_strdup() but can be used to duplicate a portion of
350 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
354 *) Add the function sk_find_ex() which works like sk_find(), but will
355 return an index to an element even if an exact match couldn't be
356 found. The index is guaranteed to point at the element where the
357 searched-for key would be inserted to preserve sorting order.
360 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
361 takes an extra flags argument for optional functionality. Currently,
362 the following flags are defined:
364 OBJ_BSEARCH_VALUE_ON_NOMATCH
365 This one gets OBJ_bsearch_ex() to return a pointer to the first
366 element where the comparing function returns a negative or zero
369 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
370 This one gets OBJ_bsearch_ex() to return a pointer to the first
371 element where the comparing function returns zero. This is useful
372 if there are more than one element where the comparing function
376 *) Make it possible to create self-signed certificates with 'openssl ca'
377 in such a way that the self-signed certificate becomes part of the
378 CA database and uses the same mechanisms for serial number generation
379 as all other certificate signing. The new flag '-selfsign' enables
380 this functionality. Adapt CA.sh and CA.pl.in.
383 *) Add functionality to check the public key of a certificate request
384 against a given private. This is useful to check that a certificate
385 request can be signed by that key (self-signing).
388 *) Make it possible to have multiple active certificates with the same
389 subject in the CA index file. This is done only if the keyword
390 'unique_subject' is set to 'no' in the main CA section (default
391 if 'CA_default') of the configuration file. The value is saved
392 with the database itself in a separate index attribute file,
393 named like the index file with '.attr' appended to the name.
396 *) Generate muti valued AVAs using '+' notation in config files for
400 *) Support for nameConstraints certificate extension.
403 *) Support for policyConstraints certificate extension.
406 *) Support for policyMappings certificate extension.
409 *) Make sure the default DSA_METHOD implementation only uses its
410 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
411 and change its own handlers to be NULL so as to remove unnecessary
412 indirection. This lets alternative implementations fallback to the
413 default implementation more easily.
416 *) Support for directoryName in GeneralName related extensions
420 *) Make it possible to link applications using Makefile.shared.
421 Make that possible even when linking against static libraries!
424 *) Support for single pass processing for S/MIME signing. This now
425 means that S/MIME signing can be done from a pipe, in addition
426 cleartext signing (multipart/signed type) is effectively streaming
427 and the signed data does not need to be all held in memory.
429 This is done with a new flag PKCS7_STREAM. When this flag is set
430 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
431 is done after the data is output (and digests calculated) in
435 *) Add full support for -rpath/-R, both in shared libraries and
436 applications, at least on the platforms where it's known how
440 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
441 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
442 will now compute a table of multiples of the generator that
443 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
444 faster (notably in the case of a single point multiplication,
446 [Nils Larsch, Bodo Moeller]
448 *) IPv6 support for certificate extensions. The various extensions
449 which use the IP:a.b.c.d can now take IPv6 addresses using the
450 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
454 *) Added an ENGINE that implements RSA by performing private key
455 exponentiations with the GMP library. The conversions to and from
456 GMP's mpz_t format aren't optimised nor are any montgomery forms
457 cached, and on x86 it appears OpenSSL's own performance has caught up.
458 However there are likely to be other architectures where GMP could
459 provide a boost. This ENGINE is not built in by default, but it can be
460 specified at Configure time and should be accompanied by the necessary
461 linker additions, eg;
462 ./config -DOPENSSL_USE_GMP -lgmp
465 *) "openssl engine" will not display ENGINE/DSO load failure errors when
466 testing availability of engines with "-t" - the old behaviour is
467 produced by increasing the feature's verbosity with "-tt".
470 *) ECDSA routines: under certain error conditions uninitialized BN objects
471 could be freed. Solution: make sure initialization is performed early
472 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
476 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
477 and DH_METHOD (eg. by ENGINE implementations) to override the normal
478 software implementations. For DSA and DH, parameter generation can
479 also be overriden by providing the appropriate method callbacks.
482 *) Change the "progress" mechanism used in key-generation and
483 primality testing to functions that take a new BN_GENCB pointer in
484 place of callback/argument pairs. The new API functions have "_ex"
485 postfixes and the older functions are reimplemented as wrappers for
486 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
487 declarations of the old functions to help (graceful) attempts to
488 migrate to the new functions. Also, the new key-generation API
489 functions operate on a caller-supplied key-structure and return
490 success/failure rather than returning a key or NULL - this is to
491 help make "keygen" another member function of RSA_METHOD etc.
493 Example for using the new callback interface:
495 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
499 BN_GENCB_set(&my_cb, my_callback, my_arg);
501 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
502 /* For the meaning of a, b in calls to my_callback(), see the
503 * documentation of the function that calls the callback.
504 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
505 * my_callback should return 1 if it wants BN_is_prime_ex()
506 * to continue, or 0 to stop.
511 *) Change the ZLIB compression method to be stateful, and make it
512 available to TLS with the number defined in
513 draft-ietf-tls-compression-04.txt.
516 *) Add the ASN.1 structures and functions for CertificatePair, which
517 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
519 CertificatePair ::= SEQUENCE {
520 forward [0] Certificate OPTIONAL,
521 reverse [1] Certificate OPTIONAL,
522 -- at least one of the pair shall be present -- }
524 Also implement the PEM functions to read and write certificate
525 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
527 This needed to be defined, mostly for the sake of the LDAP
528 attribute crossCertificatePair, but may prove useful elsewhere as
532 *) Make it possible to inhibit symlinking of shared libraries in
533 Makefile.shared, for Cygwin's sake.
536 *) Extend the BIGNUM API by creating a function
537 void BN_set_negative(BIGNUM *a, int neg);
538 and a macro that behave like
539 int BN_is_negative(const BIGNUM *a);
541 to avoid the need to access 'a->neg' directly in applications.
544 *) Implement fast modular reduction for pseudo-Mersenne primes
545 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
546 EC_GROUP_new_curve_GFp() will now automatically use this
548 [Nils Larsch <nla@trustcenter.de>]
550 *) Add new lock type (CRYPTO_LOCK_BN).
553 *) Change the ENGINE framework to automatically load engines
554 dynamically from specific directories unless they could be
555 found to already be built in or loaded. Move all the
556 current engines except for the cryptodev one to a new
558 The engines in engines/ are built as shared libraries if
559 the "shared" options was given to ./Configure or ./config.
560 Otherwise, they are inserted in libcrypto.a.
561 /usr/local/ssl/engines is the default directory for dynamic
562 engines, but that can be overriden at configure time through
563 the usual use of --prefix and/or --openssldir, and at run
564 time with the environment variable OPENSSL_ENGINES.
565 [Geoff Thorpe and Richard Levitte]
567 *) Add Makefile.shared, a helper makefile to build shared
568 libraries. Addapt Makefile.org.
571 *) Add version info to Win32 DLLs.
572 [Peter 'Luna' Runestig" <peter@runestig.com>]
574 *) Add new 'medium level' PKCS#12 API. Certificates and keys
575 can be added using this API to created arbitrary PKCS#12
576 files while avoiding the low level API.
578 New options to PKCS12_create(), key or cert can be NULL and
579 will then be omitted from the output file. The encryption
580 algorithm NIDs can be set to -1 for no encryption, the mac
581 iteration count can be set to 0 to omit the mac.
583 Enhance pkcs12 utility by making the -nokeys and -nocerts
584 options work when creating a PKCS#12 file. New option -nomac
585 to omit the mac, NONE can be set for an encryption algorithm.
586 New code is modified to use the enhanced PKCS12_create()
587 instead of the low level API.
590 *) Extend ASN1 encoder to support indefinite length constructed
591 encoding. This can output sequences tags and octet strings in
592 this form. Modify pk7_asn1.c to support indefinite length
593 encoding. This is experimental and needs additional code to
594 be useful, such as an ASN1 bio and some enhanced streaming
597 Extend template encode functionality so that tagging is passed
598 down to the template encoder.
601 *) Let 'openssl req' fail if an argument to '-newkey' is not
602 recognized instead of using RSA as a default.
605 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
606 As these are not official, they are not included in "ALL";
607 the "ECCdraft" ciphersuite group alias can be used to select them.
608 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
610 *) Add ECDH engine support.
611 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
613 *) Add ECDH in new directory crypto/ecdh/.
614 [Douglas Stebila (Sun Microsystems Laboratories)]
616 *) Let BN_rand_range() abort with an error after 100 iterations
617 without success (which indicates a broken PRNG).
620 *) Change BN_mod_sqrt() so that it verifies that the input value
621 is really the square of the return value. (Previously,
622 BN_mod_sqrt would show GIGO behaviour.)
625 *) Add named elliptic curves over binary fields from X9.62, SECG,
626 and WAP/WTLS; add OIDs that were still missing.
628 [Sheueling Chang Shantz and Douglas Stebila
629 (Sun Microsystems Laboratories)]
631 *) Extend the EC library for elliptic curves over binary fields
632 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
635 EC_GF2m_simple_method
639 EC_GROUP_new_curve_GF2m
640 EC_GROUP_set_curve_GF2m
641 EC_GROUP_get_curve_GF2m
642 EC_POINT_set_affine_coordinates_GF2m
643 EC_POINT_get_affine_coordinates_GF2m
644 EC_POINT_set_compressed_coordinates_GF2m
646 Point compression for binary fields is disabled by default for
647 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
650 As binary polynomials are represented as BIGNUMs, various members
651 of the EC_GROUP and EC_POINT data structures can be shared
652 between the implementations for prime fields and binary fields;
653 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
654 are essentially identical to their ..._GFp counterparts.
655 (For simplicity, the '..._GFp' prefix has been dropped from
656 various internal method names.)
658 An internal 'field_div' method (similar to 'field_mul' and
659 'field_sqr') has been added; this is used only for binary fields.
661 [Sheueling Chang Shantz and Douglas Stebila
662 (Sun Microsystems Laboratories)]
664 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
665 through methods ('mul', 'precompute_mult').
667 The generic implementations (now internally called 'ec_wNAF_mul'
668 and 'ec_wNAF_precomputed_mult') remain the default if these
669 methods are undefined.
671 [Sheueling Chang Shantz and Douglas Stebila
672 (Sun Microsystems Laboratories)]
674 *) New function EC_GROUP_get_degree, which is defined through
675 EC_METHOD. For curves over prime fields, this returns the bit
676 length of the modulus.
678 [Sheueling Chang Shantz and Douglas Stebila
679 (Sun Microsystems Laboratories)]
681 *) New functions EC_GROUP_dup, EC_POINT_dup.
682 (These simply call ..._new and ..._copy).
684 [Sheueling Chang Shantz and Douglas Stebila
685 (Sun Microsystems Laboratories)]
687 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
688 Polynomials are represented as BIGNUMs (where the sign bit is not
689 used) in the following functions [macros]:
692 BN_GF2m_sub [= BN_GF2m_add]
693 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
694 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
695 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
697 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
698 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
699 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
700 BN_GF2m_cmp [= BN_ucmp]
702 (Note that only the 'mod' functions are actually for fields GF(2^m).
703 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
705 For some functions, an the irreducible polynomial defining a
706 field can be given as an 'unsigned int[]' with strictly
707 decreasing elements giving the indices of those bits that are set;
708 i.e., p[] represents the polynomial
709 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
711 p[0] > p[1] > ... > p[k] = 0.
712 This applies to the following functions:
717 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
718 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
721 BN_GF2m_mod_solve_quad_arr
725 Conversion can be performed by the following functions:
730 bntest.c has additional tests for binary polynomial arithmetic.
732 Two implementations for BN_GF2m_mod_div() are available.
733 The default algorithm simply uses BN_GF2m_mod_inv() and
734 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
735 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
736 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
738 [Sheueling Chang Shantz and Douglas Stebila
739 (Sun Microsystems Laboratories)]
741 *) Add new error code 'ERR_R_DISABLED' that can be used when some
742 functionality is disabled at compile-time.
743 [Douglas Stebila <douglas.stebila@sun.com>]
745 *) Change default behaviour of 'openssl asn1parse' so that more
746 information is visible when viewing, e.g., a certificate:
748 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
749 mode the content of non-printable OCTET STRINGs is output in a
750 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
751 avoid the appearance of a printable string.
752 [Nils Larsch <nla@trustcenter.de>]
754 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
756 EC_GROUP_set_asn1_flag()
757 EC_GROUP_get_asn1_flag()
758 EC_GROUP_set_point_conversion_form()
759 EC_GROUP_get_point_conversion_form()
760 These control ASN1 encoding details:
761 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
762 has been set to OPENSSL_EC_NAMED_CURVE.
763 - Points are encoded in uncompressed form by default; options for
764 asn1_for are as for point2oct, namely
765 POINT_CONVERSION_COMPRESSED
766 POINT_CONVERSION_UNCOMPRESSED
767 POINT_CONVERSION_HYBRID
769 Also add 'seed' and 'seed_len' members to EC_GROUP with access
773 EC_GROUP_get_seed_len()
774 This is used only for ASN1 purposes (so far).
775 [Nils Larsch <nla@trustcenter.de>]
777 *) Add 'field_type' member to EC_METHOD, which holds the NID
778 of the appropriate field type OID. The new function
779 EC_METHOD_get_field_type() returns this value.
780 [Nils Larsch <nla@trustcenter.de>]
787 providing useful interfaces to EC_POINT_point2oct() and
788 EC_POINT_oct2point().
789 [Nils Larsch <nla@trustcenter.de>]
791 *) Change internals of the EC library so that the functions
792 EC_GROUP_set_generator()
793 EC_GROUP_get_generator()
795 EC_GROUP_get_cofactor()
796 are implemented directly in crypto/ec/ec_lib.c and not dispatched
797 to methods, which would lead to unnecessary code duplication when
798 adding different types of curves.
799 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
801 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
802 arithmetic, and such that modified wNAFs are generated
803 (which avoid length expansion in many cases).
806 *) Add a function EC_GROUP_check_discriminant() (defined via
807 EC_METHOD) that verifies that the curve discriminant is non-zero.
809 Add a function EC_GROUP_check() that makes some sanity tests
810 on a EC_GROUP, its generator and order. This includes
811 EC_GROUP_check_discriminant().
812 [Nils Larsch <nla@trustcenter.de>]
814 *) Add ECDSA in new directory crypto/ecdsa/.
816 Add applications 'openssl ecparam' and 'openssl ecdsa'
817 (these are based on 'openssl dsaparam' and 'openssl dsa').
819 ECDSA support is also included in various other files across the
820 library. Most notably,
821 - 'openssl req' now has a '-newkey ecdsa:file' option;
822 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
823 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
824 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
825 them suitable for ECDSA where domain parameters must be
826 extracted before the specific public key;
827 - ECDSA engine support has been added.
828 [Nils Larsch <nla@trustcenter.de>]
830 *) Include some named elliptic curves, and add OIDs from X9.62,
831 SECG, and WAP/WTLS. Each curve can be obtained from the new
833 EC_GROUP_new_by_curve_name(),
834 and the list of available named curves can be obtained with
835 EC_get_builtin_curves().
836 Also add a 'curve_name' member to EC_GROUP objects, which can be
838 EC_GROUP_set_curve_name()
839 EC_GROUP_get_curve_name()
840 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
842 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
843 was actually never needed) and in BN_mul(). The removal in BN_mul()
844 required a small change in bn_mul_part_recursive() and the addition
845 of the functions bn_cmp_part_words(), bn_sub_part_words() and
846 bn_add_part_words(), which do the same thing as bn_cmp_words(),
847 bn_sub_words() and bn_add_words() except they take arrays with
851 Changes between 0.9.7g and 0.9.7h [XX xxx XXXX]
853 *) Minimal support for X9.31 signatures and PSS padding modes. This is
854 mainly for FIPS compliance and not fully integrated at this stage.
857 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
858 the exponentiation using a fixed-length exponent. (Otherwise,
859 the information leaked through timing could expose the secret key
860 after many signatures; cf. Bleichenbacher's attack on DSA with
864 *) Make a new fixed-window mod_exp implementation the default for
865 RSA, DSA, and DH private-key operations so that the sequence of
866 squares and multiplies and the memory access pattern are
867 independent of the particular secret key. This will mitigate
868 cache-timing and potential related attacks.
870 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
871 and this is automatically used by BN_mod_exp_mont() if the new flag
872 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
873 will use this BN flag for private exponents unless the flag
874 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
875 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
877 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
879 *) Change the client implementation for SSLv23_method() and
880 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
881 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
882 (Previously, the SSL 2.0 backwards compatible Client Hello
883 message format would be used even with SSL_OP_NO_SSLv2.)
886 *) Add support for smime-type MIME parameter in S/MIME messages which some
890 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
891 a threadsafe manner. Modify rsa code to use new function and add calls
892 to dsa and dh code (which had race conditions before).
895 *) Include the fixed error library code in the C error file definitions
896 instead of fixing them up at runtime. This keeps the error code
900 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
902 *) Fixes for newer kerberos headers. NB: the casts are needed because
903 the 'length' field is signed on one version and unsigned on another
904 with no (?) obvious way to tell the difference, without these VC++
905 complains. Also the "definition" of FAR (blank) is no longer included
906 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
907 some needed definitions.
910 *) Undo Cygwin change.
913 *) Added support for proxy certificates according to RFC 3820.
914 Because they may be a security thread to unaware applications,
915 they must be explicitely allowed in run-time. See
916 docs/HOWTO/proxy_certificates.txt for further information.
919 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
921 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
922 server and client random values. Previously
923 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
924 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
926 This change has negligible security impact because:
928 1. Server and client random values still have 24 bytes of pseudo random
931 2. Server and client random values are sent in the clear in the initial
934 3. The master secret is derived using the premaster secret (48 bytes in
935 size for static RSA ciphersuites) as well as client server and random
938 The OpenSSL team would like to thank the UK NISCC for bringing this issue
941 [Stephen Henson, reported by UK NISCC]
943 *) Use Windows randomness collection on Cygwin.
946 *) Fix hang in EGD/PRNGD query when communication socket is closed
947 prematurely by EGD/PRNGD.
948 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
950 *) Prompt for pass phrases when appropriate for PKCS12 input format.
953 *) Back-port of selected performance improvements from development
954 branch, as well as improved support for PowerPC platforms.
957 *) Add lots of checks for memory allocation failure, error codes to indicate
958 failure and freeing up memory if a failure occurs.
959 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
961 *) Add new -passin argument to dgst.
964 *) Perform some character comparisons of different types in X509_NAME_cmp:
965 this is needed for some certificates that reencode DNs into UTF8Strings
966 (in violation of RFC3280) and can't or wont issue name rollover
970 *) Make an explicit check during certificate validation to see that
971 the CA setting in each certificate on the chain is correct. As a
972 side effect always do the following basic checks on extensions,
973 not just when there's an associated purpose to the check:
975 - if there is an unhandled critical extension (unless the user
976 has chosen to ignore this fault)
977 - if the path length has been exceeded (if one is set at all)
978 - that certain extensions fit the associated purpose (if one has
982 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
984 *) Avoid a race condition when CRLs are checked in a multi threaded
985 environment. This would happen due to the reordering of the revoked
986 entries during signature checking and serial number lookup. Now the
987 encoding is cached and the serial number sort performed under a lock.
988 Add new STACK function sk_is_sorted().
991 *) Add Delta CRL to the extension code.
994 *) Various fixes to s3_pkt.c so alerts are sent properly.
995 [David Holmes <d.holmes@f5.com>]
997 *) Reduce the chances of duplicate issuer name and serial numbers (in
998 violation of RFC3280) using the OpenSSL certificate creation utilities.
999 This is done by creating a random 64 bit value for the initial serial
1000 number when a serial number file is created or when a self signed
1001 certificate is created using 'openssl req -x509'. The initial serial
1002 number file is created using 'openssl x509 -next_serial' in CA.pl
1003 rather than being initialized to 1.
1006 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1008 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1009 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
1010 [Joe Orton, Steve Henson]
1012 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1014 [Joe Orton, Steve Henson]
1016 *) Make it possible to have multiple active certificates with the same
1017 subject in the CA index file. This is done only if the keyword
1018 'unique_subject' is set to 'no' in the main CA section (default
1019 if 'CA_default') of the configuration file. The value is saved
1020 with the database itself in a separate index attribute file,
1021 named like the index file with '.attr' appended to the name.
1024 *) X509 verify fixes. Disable broken certificate workarounds when
1025 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1026 keyUsage extension present. Don't accept CRLs with unhandled critical
1027 extensions: since verify currently doesn't process CRL extensions this
1028 rejects a CRL with *any* critical extensions. Add new verify error codes
1032 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1033 A clarification of RFC2560 will require the use of OCTET STRINGs and
1034 some implementations cannot handle the current raw format. Since OpenSSL
1035 copies and compares OCSP nonces as opaque blobs without any attempt at
1036 parsing them this should not create any compatibility issues.
1039 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1040 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1041 this HMAC (and other) operations are several times slower than OpenSSL
1045 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1046 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1048 *) Use the correct content when signing type "other".
1051 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1053 *) Fix various bugs revealed by running the NISCC test suite:
1055 Stop out of bounds reads in the ASN1 code when presented with
1056 invalid tags (CAN-2003-0543 and CAN-2003-0544).
1058 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
1060 If verify callback ignores invalid public key errors don't try to check
1061 certificate signature with the NULL public key.
1065 *) New -ignore_err option in ocsp application to stop the server
1066 exiting on the first error in a request.
1069 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1070 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1074 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1075 extra data after the compression methods not only for TLS 1.0
1076 but also for SSL 3.0 (as required by the specification).
1077 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1079 *) Change X509_certificate_type() to mark the key as exported/exportable
1080 when it's 512 *bits* long, not 512 bytes.
1083 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1084 blocks during encryption.
1087 *) Various fixes to base64 BIO and non blocking I/O. On write
1088 flushes were not handled properly if the BIO retried. On read
1089 data was not being buffered properly and had various logic bugs.
1090 This also affects blocking I/O when the data being decoded is a
1094 *) Various S/MIME bugfixes and compatibility changes:
1095 output correct application/pkcs7 MIME type if
1096 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1097 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1098 of files as .eml work). Correctly handle very long lines in MIME
1102 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1104 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1105 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1106 a protocol version number mismatch like a decryption error
1107 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1110 *) Turn on RSA blinding by default in the default implementation
1111 to avoid a timing attack. Applications that don't want it can call
1112 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1113 They would be ill-advised to do so in most cases.
1114 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1116 *) Change RSA blinding code so that it works when the PRNG is not
1117 seeded (in this case, the secret RSA exponent is abused as
1118 an unpredictable seed -- if it is not unpredictable, there
1119 is no point in blinding anyway). Make RSA blinding thread-safe
1120 by remembering the creator's thread ID in rsa->blinding and
1121 having all other threads use local one-time blinding factors
1122 (this requires more computation than sharing rsa->blinding, but
1123 avoids excessive locking; and if an RSA object is not shared
1124 between threads, blinding will still be very fast).
1127 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1128 ENGINE as defaults for all supported algorithms irrespective of
1129 the 'flags' parameter. 'flags' is now honoured, so applications
1130 should make sure they are passing it correctly.
1133 *) Target "mingw" now allows native Windows code to be generated in
1134 the Cygwin environment as well as with the MinGW compiler.
1137 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1139 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1140 via timing by performing a MAC computation even if incorrrect
1141 block cipher padding has been found. This is a countermeasure
1142 against active attacks where the attacker has to distinguish
1143 between bad padding and a MAC verification error. (CAN-2003-0078)
1145 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1146 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1147 Martin Vuagnoux (EPFL, Ilion)]
1149 *) Make the no-err option work as intended. The intention with no-err
1150 is not to have the whole error stack handling routines removed from
1151 libcrypto, it's only intended to remove all the function name and
1152 reason texts, thereby removing some of the footprint that may not
1153 be interesting if those errors aren't displayed anyway.
1155 NOTE: it's still possible for any application or module to have it's
1156 own set of error texts inserted. The routines are there, just not
1157 used by default when no-err is given.
1160 *) Add support for FreeBSD on IA64.
1161 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1163 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1164 Kerberos function mit_des_cbc_cksum(). Before this change,
1165 the value returned by DES_cbc_cksum() was like the one from
1166 mit_des_cbc_cksum(), except the bytes were swapped.
1167 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1169 *) Allow an application to disable the automatic SSL chain building.
1170 Before this a rather primitive chain build was always performed in
1171 ssl3_output_cert_chain(): an application had no way to send the
1172 correct chain if the automatic operation produced an incorrect result.
1174 Now the chain builder is disabled if either:
1176 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1178 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1180 The reasoning behind this is that an application would not want the
1181 auto chain building to take place if extra chain certificates are
1182 present and it might also want a means of sending no additional
1183 certificates (for example the chain has two certificates and the
1187 *) Add the possibility to build without the ENGINE framework.
1188 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1190 *) Under Win32 gmtime() can return NULL: check return value in
1191 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1194 *) DSA routines: under certain error conditions uninitialized BN objects
1195 could be freed. Solution: make sure initialization is performed early
1196 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1197 Nils Larsch <nla@trustcenter.de> via PR#459)
1200 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1201 checked on reconnect on the client side, therefore session resumption
1202 could still fail with a "ssl session id is different" error. This
1203 behaviour is masked when SSL_OP_ALL is used due to
1204 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1205 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1206 followup to PR #377.
1209 *) IA-32 assembler support enhancements: unified ELF targets, support
1210 for SCO/Caldera platforms, fix for Cygwin shared build.
1213 *) Add support for FreeBSD on sparc64. As a consequence, support for
1214 FreeBSD on non-x86 processors is separate from x86 processors on
1215 the config script, much like the NetBSD support.
1216 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1218 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1220 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1223 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1224 code (06) was taken as the first octet of the session ID and the last
1225 octet was ignored consequently. As a result SSLv2 client side session
1226 caching could not have worked due to the session ID mismatch between
1228 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1232 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1233 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1237 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1238 seems that in spite of existing for more than a year, many application
1239 author have done nothing to provide the necessary callbacks, which
1240 means that this particular engine will not work properly anywhere.
1241 This is a very unfortunate situation which forces us, in the name
1242 of usability, to give the hw_ncipher.c a static lock, which is part
1244 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1245 appear in 0.9.8 or later. We EXPECT application authors to have
1246 dealt properly with this when 0.9.8 is released (unless we actually
1247 make such changes in the libcrypto locking code that changes will
1248 have to be made anyway).
1251 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1252 octets have been read, EOF or an error occurs. Without this change
1253 some truncated ASN1 structures will not produce an error.
1256 *) Disable Heimdal support, since it hasn't been fully implemented.
1257 Still give the possibility to force the use of Heimdal, but with
1258 warnings and a request that patches get sent to openssl-dev.
1261 *) Add the VC-CE target, introduce the WINCE sysname, and add
1262 INSTALL.WCE and appropriate conditionals to make it build.
1263 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1265 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1266 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1267 edit numbers of the version.
1268 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1270 *) Introduce safe string copy and catenation functions
1271 (BUF_strlcpy() and BUF_strlcat()).
1272 [Ben Laurie (CHATS) and Richard Levitte]
1274 *) Avoid using fixed-size buffers for one-line DNs.
1275 [Ben Laurie (CHATS)]
1277 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1278 resizing buffers containing secrets, and use where appropriate.
1279 [Ben Laurie (CHATS)]
1281 *) Avoid using fixed size buffers for configuration file location.
1282 [Ben Laurie (CHATS)]
1284 *) Avoid filename truncation for various CA files.
1285 [Ben Laurie (CHATS)]
1287 *) Use sizeof in preference to magic numbers.
1288 [Ben Laurie (CHATS)]
1290 *) Avoid filename truncation in cert requests.
1291 [Ben Laurie (CHATS)]
1293 *) Add assertions to check for (supposedly impossible) buffer
1295 [Ben Laurie (CHATS)]
1297 *) Don't cache truncated DNS entries in the local cache (this could
1298 potentially lead to a spoofing attack).
1299 [Ben Laurie (CHATS)]
1301 *) Fix various buffers to be large enough for hex/decimal
1302 representations in a platform independent manner.
1303 [Ben Laurie (CHATS)]
1305 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1306 resizing buffers containing secrets, and use where appropriate.
1307 [Ben Laurie (CHATS)]
1309 *) Add BIO_indent() to avoid much slightly worrying code to do
1311 [Ben Laurie (CHATS)]
1313 *) Convert sprintf()/BIO_puts() to BIO_printf().
1314 [Ben Laurie (CHATS)]
1316 *) buffer_gets() could terminate with the buffer only half
1318 [Ben Laurie (CHATS)]
1320 *) Add assertions to prevent user-supplied crypto functions from
1321 overflowing internal buffers by having large block sizes, etc.
1322 [Ben Laurie (CHATS)]
1324 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1326 [Ben Laurie (CHATS)]
1328 *) Eliminate unused copy of key in RC4.
1329 [Ben Laurie (CHATS)]
1331 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1332 [Ben Laurie (CHATS)]
1334 *) Fix off-by-one error in EGD path.
1335 [Ben Laurie (CHATS)]
1337 *) If RANDFILE path is too long, ignore instead of truncating.
1338 [Ben Laurie (CHATS)]
1340 *) Eliminate unused and incorrectly sized X.509 structure
1342 [Ben Laurie (CHATS)]
1344 *) Eliminate unused and dangerous function knumber().
1345 [Ben Laurie (CHATS)]
1347 *) Eliminate unused and dangerous structure, KSSL_ERR.
1348 [Ben Laurie (CHATS)]
1350 *) Protect against overlong session ID context length in an encoded
1351 session object. Since these are local, this does not appear to be
1353 [Ben Laurie (CHATS)]
1355 *) Change from security patch (see 0.9.6e below) that did not affect
1356 the 0.9.6 release series:
1358 Remote buffer overflow in SSL3 protocol - an attacker could
1359 supply an oversized master key in Kerberos-enabled versions.
1361 [Ben Laurie (CHATS)]
1363 *) Change the SSL kerb5 codes to match RFC 2712.
1366 *) Make -nameopt work fully for req and add -reqopt switch.
1367 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1369 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1370 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1372 *) Make sure tests can be performed even if the corresponding algorithms
1373 have been removed entirely. This was also the last step to make
1374 OpenSSL compilable with DJGPP under all reasonable conditions.
1375 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1377 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1378 to allow version independent disabling of normally unselected ciphers,
1379 which may be activated as a side-effect of selecting a single cipher.
1381 (E.g., cipher list string "RSA" enables ciphersuites that are left
1382 out of "ALL" because they do not provide symmetric encryption.
1383 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1384 [Lutz Jaenicke, Bodo Moeller]
1386 *) Add appropriate support for separate platform-dependent build
1387 directories. The recommended way to make a platform-dependent
1388 build directory is the following (tested on Linux), maybe with
1391 # Place yourself outside of the OpenSSL source tree. In
1392 # this example, the environment variable OPENSSL_SOURCE
1393 # is assumed to contain the absolute OpenSSL source directory.
1394 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1395 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1396 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1397 mkdir -p `dirname $F`
1398 ln -s $OPENSSL_SOURCE/$F $F
1401 To be absolutely sure not to disturb the source tree, a "make clean"
1402 is a good thing. If it isn't successfull, don't worry about it,
1403 it probably means the source directory is very clean.
1406 *) Make sure any ENGINE control commands make local copies of string
1407 pointers passed to them whenever necessary. Otherwise it is possible
1408 the caller may have overwritten (or deallocated) the original string
1409 data when a later ENGINE operation tries to use the stored values.
1410 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1412 *) Improve diagnostics in file reading and command-line digests.
1413 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1415 *) Add AES modes CFB and OFB to the object database. Correct an
1416 error in AES-CFB decryption.
1419 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1420 allows existing EVP_CIPHER_CTX structures to be reused after
1421 calling EVP_*Final(). This behaviour is used by encryption
1422 BIOs and some applications. This has the side effect that
1423 applications must explicitly clean up cipher contexts with
1424 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1427 *) Check the values of dna and dnb in bn_mul_recursive before calling
1428 bn_mul_comba (a non zero value means the a or b arrays do not contain
1429 n2 elements) and fallback to bn_mul_normal if either is not zero.
1432 *) Fix escaping of non-ASCII characters when using the -subj option
1433 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1436 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1437 form for "surname", serialNumber has no short form.
1438 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1439 therefore remove "mail" short name for "internet 7".
1440 The OID for unique identifiers in X509 certificates is
1441 x500UniqueIdentifier, not uniqueIdentifier.
1442 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1445 *) Add an "init" command to the ENGINE config module and auto initialize
1446 ENGINEs. Without any "init" command the ENGINE will be initialized
1447 after all ctrl commands have been executed on it. If init=1 the
1448 ENGINE is initailized at that point (ctrls before that point are run
1449 on the uninitialized ENGINE and after on the initialized one). If
1450 init=0 then the ENGINE will not be iniatialized at all.
1453 *) Fix the 'app_verify_callback' interface so that the user-defined
1454 argument is actually passed to the callback: In the
1455 SSL_CTX_set_cert_verify_callback() prototype, the callback
1456 declaration has been changed from
1459 int (*cb)(X509_STORE_CTX *,void *);
1460 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1461 i=s->ctx->app_verify_callback(&ctx)
1462 has been changed into
1463 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1465 To update applications using SSL_CTX_set_cert_verify_callback(),
1466 a dummy argument can be added to their callback functions.
1467 [D. K. Smetters <smetters@parc.xerox.com>]
1469 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1470 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1472 *) Add and OPENSSL_LOAD_CONF define which will cause
1473 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1474 This allows older applications to transparently support certain
1475 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1476 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1477 load the config file and OPENSSL_add_all_algorithms_conf() which will
1478 always load it have also been added.
1481 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1482 Adjust NIDs and EVP layer.
1483 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1485 *) Config modules support in openssl utility.
1487 Most commands now load modules from the config file,
1488 though in a few (such as version) this isn't done
1489 because it couldn't be used for anything.
1491 In the case of ca and req the config file used is
1492 the same as the utility itself: that is the -config
1493 command line option can be used to specify an
1497 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1498 use "openssl_conf" if filename is NULL use default openssl config file.
1501 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1502 config section name. Add a new flag to tolerate a missing config file
1503 and move code to CONF_modules_load_file().
1506 *) Support for crypto accelerator cards from Accelerated Encryption
1507 Processing, www.aep.ie. (Use engine 'aep')
1508 The support was copied from 0.9.6c [engine] and adapted/corrected
1509 to work with the new engine framework.
1510 [AEP Inc. and Richard Levitte]
1512 *) Support for SureWare crypto accelerator cards from Baltimore
1513 Technologies. (Use engine 'sureware')
1514 The support was copied from 0.9.6c [engine] and adapted
1515 to work with the new engine framework.
1518 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1519 make the newer ENGINE framework commands for the CHIL engine work.
1520 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1522 *) Make it possible to produce shared libraries on ReliantUNIX.
1523 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1525 *) Add the configuration target debug-linux-ppro.
1526 Make 'openssl rsa' use the general key loading routines
1527 implemented in apps.c, and make those routines able to
1528 handle the key format FORMAT_NETSCAPE and the variant
1530 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1532 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1533 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1535 *) Add -keyform to rsautl, and document -engine.
1536 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1538 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1539 BIO_R_NO_SUCH_FILE error code rather than the generic
1540 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1543 *) Add new functions
1545 ERR_peek_last_error_line
1546 ERR_peek_last_error_line_data.
1547 These are similar to
1550 ERR_peek_error_line_data,
1551 but report on the latest error recorded rather than the first one
1552 still in the error queue.
1553 [Ben Laurie, Bodo Moeller]
1555 *) default_algorithms option in ENGINE config module. This allows things
1557 default_algorithms = ALL
1558 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1561 *) Prelminary ENGINE config module.
1564 *) New experimental application configuration code.
1567 *) Change the AES code to follow the same name structure as all other
1568 symmetric ciphers, and behave the same way. Move everything to
1569 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1570 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1572 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1573 [Ben Laurie and Theo de Raadt]
1575 *) Add option to output public keys in req command.
1576 [Massimiliano Pala madwolf@openca.org]
1578 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1579 (up to about 10% better than before for P-192 and P-224).
1582 *) New functions/macros
1584 SSL_CTX_set_msg_callback(ctx, cb)
1585 SSL_CTX_set_msg_callback_arg(ctx, arg)
1586 SSL_set_msg_callback(ssl, cb)
1587 SSL_set_msg_callback_arg(ssl, arg)
1589 to request calling a callback function
1591 void cb(int write_p, int version, int content_type,
1592 const void *buf, size_t len, SSL *ssl, void *arg)
1594 whenever a protocol message has been completely received
1595 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1596 protocol version according to which the SSL library interprets
1597 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1598 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1599 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1600 specification (change_cipher_spec(20), alert(21), handshake(22)).
1601 'buf' and 'len' point to the actual message, 'ssl' to the
1602 SSL object, and 'arg' is the application-defined value set by
1603 SSL[_CTX]_set_msg_callback_arg().
1605 'openssl s_client' and 'openssl s_server' have new '-msg' options
1606 to enable a callback that displays all protocol messages.
1609 *) Change the shared library support so shared libraries are built as
1610 soon as the corresponding static library is finished, and thereby get
1611 openssl and the test programs linked against the shared library.
1612 This still only happens when the keyword "shard" has been given to
1613 the configuration scripts.
1615 NOTE: shared library support is still an experimental thing, and
1616 backward binary compatibility is still not guaranteed.
1617 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1619 *) Add support for Subject Information Access extension.
1620 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1622 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1623 additional bytes when new memory had to be allocated, not just
1624 when reusing an existing buffer.
1627 *) New command line and configuration option 'utf8' for the req command.
1628 This allows field values to be specified as UTF8 strings.
1631 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1632 runs for the former and machine-readable output for the latter.
1635 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1636 of the e-mail address in the DN (i.e., it will go into a certificate
1637 extension only). The new configuration file option 'email_in_dn = no'
1638 has the same effect.
1639 [Massimiliano Pala madwolf@openca.org]
1641 *) Change all functions with names starting with des_ to be starting
1642 with DES_ instead. Add wrappers that are compatible with libdes,
1643 but are named _ossl_old_des_*. Finally, add macros that map the
1644 des_* symbols to the corresponding _ossl_old_des_* if libdes
1645 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1646 desired, the des_* symbols will be mapped to DES_*, with one
1649 Since we provide two compatibility mappings, the user needs to
1650 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1651 compatibility is desired. The default (i.e., when that macro
1652 isn't defined) is OpenSSL 0.9.6c compatibility.
1654 There are also macros that enable and disable the support of old
1655 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1656 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1657 are defined, the default will apply: to support the old des routines.
1659 In either case, one must include openssl/des.h to get the correct
1660 definitions. Do not try to just include openssl/des_old.h, that
1663 NOTE: This is a major break of an old API into a new one. Software
1664 authors are encouraged to switch to the DES_ style functions. Some
1665 time in the future, des_old.h and the libdes compatibility functions
1666 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1667 default), and then completely removed.
1670 *) Test for certificates which contain unsupported critical extensions.
1671 If such a certificate is found during a verify operation it is
1672 rejected by default: this behaviour can be overridden by either
1673 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1674 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1675 X509_supported_extension() has also been added which returns 1 if a
1676 particular extension is supported.
1679 *) Modify the behaviour of EVP cipher functions in similar way to digests
1680 to retain compatibility with existing code.
1683 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1684 compatibility with existing code. In particular the 'ctx' parameter does
1685 not have to be to be initialized before the call to EVP_DigestInit() and
1686 it is tidied up after a call to EVP_DigestFinal(). New function
1687 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1688 EVP_MD_CTX_copy() changed to not require the destination to be
1689 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1690 requires the destination to be valid.
1692 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1693 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1696 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1697 so that complete 'Handshake' protocol structures are kept in memory
1698 instead of overwriting 'msg_type' and 'length' with 'body' data.
1701 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1702 [Massimo Santin via Richard Levitte]
1704 *) Major restructuring to the underlying ENGINE code. This includes
1705 reduction of linker bloat, separation of pure "ENGINE" manipulation
1706 (initialisation, etc) from functionality dealing with implementations
1707 of specific crypto iterfaces. This change also introduces integrated
1708 support for symmetric ciphers and digest implementations - so ENGINEs
1709 can now accelerate these by providing EVP_CIPHER and EVP_MD
1710 implementations of their own. This is detailed in crypto/engine/README
1711 as it couldn't be adequately described here. However, there are a few
1712 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1713 were changed in the original introduction of ENGINE code have now
1714 reverted back - the hooking from this code to ENGINE is now a good
1715 deal more passive and at run-time, operations deal directly with
1716 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1717 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1718 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1719 they were not being used by the framework as there is no concept of a
1720 BIGNUM_METHOD and they could not be generalised to the new
1721 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1722 ENGINE_cpy() has been removed as it cannot be consistently defined in
1726 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1729 *) Change mkdef.pl to sort symbols that get the same entry number,
1730 and make sure the automatically generated functions ERR_load_*
1731 become part of libeay.num as well.
1734 *) New function SSL_renegotiate_pending(). This returns true once
1735 renegotiation has been requested (either SSL_renegotiate() call
1736 or HelloRequest/ClientHello receveived from the peer) and becomes
1737 false once a handshake has been completed.
1738 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1739 sends a HelloRequest, but does not ensure that a handshake takes
1740 place. SSL_renegotiate_pending() is useful for checking if the
1741 client has followed the request.)
1744 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1745 By default, clients may request session resumption even during
1746 renegotiation (if session ID contexts permit); with this option,
1747 session resumption is possible only in the first handshake.
1749 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1750 more bits available for options that should not be part of
1751 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1754 *) Add some demos for certificate and certificate request creation.
1757 *) Make maximum certificate chain size accepted from the peer application
1758 settable (SSL*_get/set_max_cert_list()), as proposed by
1759 "Douglas E. Engert" <deengert@anl.gov>.
1762 *) Add support for shared libraries for Unixware-7
1763 (Boyd Lynn Gerber <gerberb@zenez.com>).
1766 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1767 be done prior to destruction. Use this to unload error strings from
1768 ENGINEs that load their own error strings. NB: This adds two new API
1769 functions to "get" and "set" this destroy handler in an ENGINE.
1772 *) Alter all existing ENGINE implementations (except "openssl" and
1773 "openbsd") to dynamically instantiate their own error strings. This
1774 makes them more flexible to be built both as statically-linked ENGINEs
1775 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1776 Also, add stub code to each that makes building them as self-contained
1777 shared-libraries easier (see README.ENGINE).
1780 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1781 implementations into applications that are completely implemented in
1782 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1783 commands that can be used to configure what shared-library to load and
1784 to control aspects of the way it is handled. Also, made an update to
1785 the README.ENGINE file that brings its information up-to-date and
1786 provides some information and instructions on the "dynamic" ENGINE
1787 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1790 *) Make it possible to unload ranges of ERR strings with a new
1791 "ERR_unload_strings" function.
1794 *) Add a copy() function to EVP_MD.
1797 *) Make EVP_MD routines take a context pointer instead of just the
1798 md_data void pointer.
1801 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1802 that the digest can only process a single chunk of data
1803 (typically because it is provided by a piece of
1804 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1805 is only going to provide a single chunk of data, and hence the
1806 framework needn't accumulate the data for oneshot drivers.
1809 *) As with "ERR", make it possible to replace the underlying "ex_data"
1810 functions. This change also alters the storage and management of global
1811 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1812 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1813 index counters. The API functions that use this state have been changed
1814 to take a "class_index" rather than pointers to the class's local STACK
1815 and counter, and there is now an API function to dynamically create new
1816 classes. This centralisation allows us to (a) plug a lot of the
1817 thread-safety problems that existed, and (b) makes it possible to clean
1818 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1819 such data would previously have always leaked in application code and
1820 workarounds were in place to make the memory debugging turn a blind eye
1821 to it. Application code that doesn't use this new function will still
1822 leak as before, but their memory debugging output will announce it now
1823 rather than letting it slide.
1825 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1826 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1827 has a return value to indicate success or failure.
1830 *) Make it possible to replace the underlying "ERR" functions such that the
1831 global state (2 LHASH tables and 2 locks) is only used by the "default"
1832 implementation. This change also adds two functions to "get" and "set"
1833 the implementation prior to it being automatically set the first time
1834 any other ERR function takes place. Ie. an application can call "get",
1835 pass the return value to a module it has just loaded, and that module
1836 can call its own "set" function using that value. This means the
1837 module's "ERR" operations will use (and modify) the error state in the
1838 application and not in its own statically linked copy of OpenSSL code.
1841 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1842 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1843 the operation, and provides a more encapsulated way for external code
1844 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1845 to use these functions rather than manually incrementing the counts.
1847 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1850 *) Add EVP test program.
1853 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1856 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1857 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1858 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1859 These allow a CRL to be built without having to access X509_CRL fields
1860 directly. Modify 'ca' application to use new functions.
1863 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1864 bug workarounds. Rollback attack detection is a security feature.
1865 The problem will only arise on OpenSSL servers when TLSv1 is not
1866 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1867 Software authors not wanting to support TLSv1 will have special reasons
1868 for their choice and can explicitly enable this option.
1869 [Bodo Moeller, Lutz Jaenicke]
1871 *) Rationalise EVP so it can be extended: don't include a union of
1872 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1873 (similar to those existing for EVP_CIPHER_CTX).
1878 EVP_MD_CTX_init(&md); /* new function call */
1879 EVP_DigestInit(&md, EVP_sha1());
1880 EVP_DigestUpdate(&md, in, len);
1881 EVP_DigestFinal(&md, out, NULL);
1882 EVP_MD_CTX_cleanup(&md); /* new function call */
1886 *) Make DES key schedule conform to the usual scheme, as well as
1887 correcting its structure. This means that calls to DES functions
1888 now have to pass a pointer to a des_key_schedule instead of a
1889 plain des_key_schedule (which was actually always a pointer
1892 des_key_schedule ks;
1894 des_set_key_checked(..., &ks);
1895 des_ncbc_encrypt(..., &ks, ...);
1897 (Note that a later change renames 'des_...' into 'DES_...'.)
1900 *) Initial reduction of linker bloat: the use of some functions, such as
1901 PEM causes large amounts of unused functions to be linked in due to
1902 poor organisation. For example pem_all.c contains every PEM function
1903 which has a knock on effect of linking in large amounts of (unused)
1904 ASN1 code. Grouping together similar functions and splitting unrelated
1905 functions prevents this.
1908 *) Cleanup of EVP macros.
1911 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1912 correct _ecb suffix.
1915 *) Add initial OCSP responder support to ocsp application. The
1916 revocation information is handled using the text based index
1917 use by the ca application. The responder can either handle
1918 requests generated internally, supplied in files (for example
1919 via a CGI script) or using an internal minimal server.
1922 *) Add configuration choices to get zlib compression for TLS.
1925 *) Changes to Kerberos SSL for RFC 2712 compliance:
1926 1. Implemented real KerberosWrapper, instead of just using
1927 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1928 2. Implemented optional authenticator field of KerberosWrapper.
1930 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1931 and authenticator structs; see crypto/krb5/.
1933 Generalized Kerberos calls to support multiple Kerberos libraries.
1934 [Vern Staats <staatsvr@asc.hpc.mil>,
1935 Jeffrey Altman <jaltman@columbia.edu>
1936 via Richard Levitte]
1938 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1939 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1940 values for each of the key sizes rather than having just
1941 parameters (and 'speed' generating keys each time).
1944 *) Speed up EVP routines.
1947 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1948 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1949 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1950 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1952 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1953 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1954 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1957 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1959 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1962 *) Added the OS2-EMX target.
1963 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1965 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1966 to support NCONF routines in extension code. New function CONF_set_nconf()
1967 to allow functions which take an NCONF to also handle the old LHASH
1968 structure: this means that the old CONF compatible routines can be
1969 retained (in particular wrt extensions) without having to duplicate the
1970 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1973 *) Enhance the general user interface with mechanisms for inner control
1974 and with possibilities to have yes/no kind of prompts.
1977 *) Change all calls to low level digest routines in the library and
1978 applications to use EVP. Add missing calls to HMAC_cleanup() and
1979 don't assume HMAC_CTX can be copied using memcpy().
1980 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1982 *) Add the possibility to control engines through control names but with
1983 arbitrary arguments instead of just a string.
1984 Change the key loaders to take a UI_METHOD instead of a callback
1985 function pointer. NOTE: this breaks binary compatibility with earlier
1986 versions of OpenSSL [engine].
1987 Adapt the nCipher code for these new conditions and add a card insertion
1991 *) Enhance the general user interface with mechanisms to better support
1992 dialog box interfaces, application-defined prompts, the possibility
1993 to use defaults (for example default passwords from somewhere else)
1994 and interrupts/cancellations.
1997 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1998 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2001 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2002 tidy up some unnecessarily weird code in 'sk_new()').
2003 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2005 *) Change the key loading routines for ENGINEs to use the same kind
2006 callback (pem_password_cb) as all other routines that need this
2010 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2011 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2012 than this minimum value is recommended.
2015 *) New random seeder for OpenVMS, using the system process statistics
2016 that are easily reachable.
2019 *) Windows apparently can't transparently handle global
2020 variables defined in DLLs. Initialisations such as:
2022 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2024 wont compile. This is used by the any applications that need to
2025 declare their own ASN1 modules. This was fixed by adding the option
2026 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2027 needed for static libraries under Win32.
2030 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2031 setting of purpose and trust fields. New X509_STORE trust and
2032 purpose functions and tidy up setting in other SSL functions.
2035 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2036 structure. These are inherited by X509_STORE_CTX when it is
2037 initialised. This allows various defaults to be set in the
2038 X509_STORE structure (such as flags for CRL checking and custom
2039 purpose or trust settings) for functions which only use X509_STORE_CTX
2040 internally such as S/MIME.
2042 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2043 trust settings if they are not set in X509_STORE. This allows X509_STORE
2044 purposes and trust (in S/MIME for example) to override any set by default.
2046 Add command line options for CRL checking to smime, s_client and s_server
2050 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2051 are set then the CRL is looked up in the X509_STORE structure and
2052 its validity and signature checked, then if the certificate is found
2053 in the CRL the verify fails with a revoked error.
2055 Various new CRL related callbacks added to X509_STORE_CTX structure.
2057 Command line options added to 'verify' application to support this.
2059 This needs some additional work, such as being able to handle multiple
2060 CRLs with different times, extension based lookup (rather than just
2061 by subject name) and ultimately more complete V2 CRL extension
2065 *) Add a general user interface API (crypto/ui/). This is designed
2066 to replace things like des_read_password and friends (backward
2067 compatibility functions using this new API are provided).
2068 The purpose is to remove prompting functions from the DES code
2069 section as well as provide for prompting through dialog boxes in
2070 a window system and the like.
2073 *) Add "ex_data" support to ENGINE so implementations can add state at a
2074 per-structure level rather than having to store it globally.
2077 *) Make it possible for ENGINE structures to be copied when retrieved by
2078 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2079 This causes the "original" ENGINE structure to act like a template,
2080 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2081 operational state can be localised to each ENGINE structure, despite the
2082 fact they all share the same "methods". New ENGINE structures returned in
2083 this case have no functional references and the return value is the single
2084 structural reference. This matches the single structural reference returned
2085 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2089 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2090 needs to match any other type at all we need to manually clear the
2094 *) Changes to the "openssl engine" utility to include;
2095 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2096 about an ENGINE's available control commands.
2097 - executing control commands from command line arguments using the
2098 '-pre' and '-post' switches. '-post' is only used if '-t' is
2099 specified and the ENGINE is successfully initialised. The syntax for
2100 the individual commands are colon-separated, for example;
2101 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2104 *) New dynamic control command support for ENGINEs. ENGINEs can now
2105 declare their own commands (numbers), names (strings), descriptions,
2106 and input types for run-time discovery by calling applications. A
2107 subset of these commands are implicitly classed as "executable"
2108 depending on their input type, and only these can be invoked through
2109 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2110 can be based on user input, config files, etc). The distinction is
2111 that "executable" commands cannot return anything other than a boolean
2112 result and can only support numeric or string input, whereas some
2113 discoverable commands may only be for direct use through
2114 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2115 pointers, or other custom uses. The "executable" commands are to
2116 support parameterisations of ENGINE behaviour that can be
2117 unambiguously defined by ENGINEs and used consistently across any
2118 OpenSSL-based application. Commands have been added to all the
2119 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2120 control over shared-library paths without source code alterations.
2123 *) Changed all ENGINE implementations to dynamically allocate their
2124 ENGINEs rather than declaring them statically. Apart from this being
2125 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2126 this also allows the implementations to compile without using the
2127 internal engine_int.h header.
2130 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2131 'const' value. Any code that should be able to modify a RAND_METHOD
2132 should already have non-const pointers to it (ie. they should only
2133 modify their own ones).
2136 *) Made a variety of little tweaks to the ENGINE code.
2137 - "atalla" and "ubsec" string definitions were moved from header files
2138 to C code. "nuron" string definitions were placed in variables
2139 rather than hard-coded - allowing parameterisation of these values
2140 later on via ctrl() commands.
2141 - Removed unused "#if 0"'d code.
2142 - Fixed engine list iteration code so it uses ENGINE_free() to release
2143 structural references.
2144 - Constified the RAND_METHOD element of ENGINE structures.
2145 - Constified various get/set functions as appropriate and added
2146 missing functions (including a catch-all ENGINE_cpy that duplicates
2147 all ENGINE values onto a new ENGINE except reference counts/state).
2148 - Removed NULL parameter checks in get/set functions. Setting a method
2149 or function to NULL is a way of cancelling out a previously set
2150 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2151 and doesn't justify the extra error symbols and code.
2152 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2153 flags from engine_int.h to engine.h.
2154 - Changed prototypes for ENGINE handler functions (init(), finish(),
2155 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2158 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2159 to the algorithm using long division. The binary algorithm can be
2160 used only if the modulus is odd. On 32-bit systems, it is faster
2161 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2162 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2163 up to 450 bits. In 64-bit environments, the binary algorithm
2164 appears to be advantageous for much longer moduli; here we use it
2165 for moduli up to 2048 bits.
2168 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2169 could not support the combine flag in choice fields.
2172 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2173 extensions from a certificate request to the certificate.
2176 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2177 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2178 file: this allows the display of the certificate about to be
2179 signed to be customised, to allow certain fields to be included
2180 or excluded and extension details. The old system didn't display
2181 multicharacter strings properly, omitted fields not in the policy
2182 and couldn't display additional details such as extensions.
2185 *) Function EC_POINTs_mul for multiple scalar multiplication
2186 of an arbitrary number of elliptic curve points
2187 \sum scalars[i]*points[i],
2188 optionally including the generator defined for the EC_GROUP:
2189 scalar*generator + \sum scalars[i]*points[i].
2191 EC_POINT_mul is a simple wrapper function for the typical case
2192 that the point list has just one item (besides the optional
2196 *) First EC_METHODs for curves over GF(p):
2198 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2199 operations and provides various method functions that can also
2200 operate with faster implementations of modular arithmetic.
2202 EC_GFp_mont_method() reuses most functions that are part of
2203 EC_GFp_simple_method, but uses Montgomery arithmetic.
2205 [Bodo Moeller; point addition and point doubling
2206 implementation directly derived from source code provided by
2207 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2209 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2210 crypto/ec/ec_lib.c):
2212 Curves are EC_GROUP objects (with an optional group generator)
2213 based on EC_METHODs that are built into the library.
2215 Points are EC_POINT objects based on EC_GROUP objects.
2217 Most of the framework would be able to handle curves over arbitrary
2218 finite fields, but as there are no obvious types for fields other
2219 than GF(p), some functions are limited to that for now.
2222 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2223 that the file contains a complete HTTP response.
2226 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2227 change the def and num file printf format specifier from "%-40sXXX"
2228 to "%-39s XXX". The latter will always guarantee a space after the
2229 field while the former will cause them to run together if the field
2230 is 40 of more characters long.
2233 *) Constify the cipher and digest 'method' functions and structures
2234 and modify related functions to take constant EVP_MD and EVP_CIPHER
2238 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2239 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2242 *) Modify EVP_Digest*() routines so they now return values. Although the
2243 internal software routines can never fail additional hardware versions
2247 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2249 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2250 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2253 ERR_R_NESTED_ASN1_ERROR
2255 ERR_R_MISSING_ASN1_EOS
2256 were 4 .. 9, conflicting with
2257 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2259 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2260 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2262 Add new error code 'ERR_R_INTERNAL_ERROR'.
2265 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2269 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2270 sets the subject name for a new request or supersedes the
2271 subject name in a given request. Formats that can be parsed are
2272 'CN=Some Name, OU=myOU, C=IT'
2274 'CN=Some Name/OU=myOU/C=IT'.
2276 Add options '-batch' and '-verbose' to 'openssl req'.
2277 [Massimiliano Pala <madwolf@hackmasters.net>]
2279 *) Introduce the possibility to access global variables through
2280 functions on platform were that's the best way to handle exporting
2281 global variables in shared libraries. To enable this functionality,
2282 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2283 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2284 is normally done by Configure or something similar).
2286 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2287 in the source file (foo.c) like this:
2289 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2290 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2292 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2293 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2295 OPENSSL_DECLARE_GLOBAL(int,foo);
2296 #define foo OPENSSL_GLOBAL_REF(foo)
2297 OPENSSL_DECLARE_GLOBAL(double,bar);
2298 #define bar OPENSSL_GLOBAL_REF(bar)
2300 The #defines are very important, and therefore so is including the
2301 header file everywhere where the defined globals are used.
2303 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2304 of ASN.1 items, but that structure is a bit different.
2306 The largest change is in util/mkdef.pl which has been enhanced with
2307 better and easier to understand logic to choose which symbols should
2308 go into the Windows .def files as well as a number of fixes and code
2309 cleanup (among others, algorithm keywords are now sorted
2310 lexicographically to avoid constant rewrites).
2313 *) In BN_div() keep a copy of the sign of 'num' before writing the
2314 result to 'rm' because if rm==num the value will be overwritten
2315 and produce the wrong result if 'num' is negative: this caused
2316 problems with BN_mod() and BN_nnmod().
2319 *) Function OCSP_request_verify(). This checks the signature on an
2320 OCSP request and verifies the signer certificate. The signer
2321 certificate is just checked for a generic purpose and OCSP request
2325 *) Add OCSP_check_validity() function to check the validity of OCSP
2326 responses. OCSP responses are prepared in real time and may only
2327 be a few seconds old. Simply checking that the current time lies
2328 between thisUpdate and nextUpdate max reject otherwise valid responses
2329 caused by either OCSP responder or client clock inaccuracy. Instead
2330 we allow thisUpdate and nextUpdate to fall within a certain period of
2331 the current time. The age of the response can also optionally be
2332 checked. Two new options -validity_period and -status_age added to
2336 *) If signature or public key algorithm is unrecognized print out its
2337 OID rather that just UNKNOWN.
2340 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2341 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2342 ID to be generated from the issuer certificate alone which can then be
2343 passed to OCSP_id_issuer_cmp().
2346 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2347 ASN1 modules to export functions returning ASN1_ITEM pointers
2348 instead of the ASN1_ITEM structures themselves. This adds several
2349 new macros which allow the underlying ASN1 function/structure to
2350 be accessed transparently. As a result code should not use ASN1_ITEM
2351 references directly (such as &X509_it) but instead use the relevant
2352 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2353 use of the new ASN1 code on platforms where exporting structures
2354 is problematical (for example in shared libraries) but exporting
2355 functions returning pointers to structures is not.
2358 *) Add support for overriding the generation of SSL/TLS session IDs.
2359 These callbacks can be registered either in an SSL_CTX or per SSL.
2360 The purpose of this is to allow applications to control, if they wish,
2361 the arbitrary values chosen for use as session IDs, particularly as it
2362 can be useful for session caching in multiple-server environments. A
2363 command-line switch for testing this (and any client code that wishes
2364 to use such a feature) has been added to "s_server".
2365 [Geoff Thorpe, Lutz Jaenicke]
2367 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2368 of the form '#if defined(...) || defined(...) || ...' and
2369 '#if !defined(...) && !defined(...) && ...'. This also avoids
2370 the growing number of special cases it was previously handling.
2373 *) Make all configuration macros available for application by making
2374 sure they are available in opensslconf.h, by giving them names starting
2375 with "OPENSSL_" to avoid conflicts with other packages and by making
2376 sure e_os2.h will cover all platform-specific cases together with
2378 Additionally, it is now possible to define configuration/platform-
2379 specific names (called "system identities"). In the C code, these
2380 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2381 macro with the name beginning with "OPENSSL_SYS_", which is determined
2382 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2386 *) New option -set_serial to 'req' and 'x509' this allows the serial
2387 number to use to be specified on the command line. Previously self
2388 signed certificates were hard coded with serial number 0 and the
2389 CA options of 'x509' had to use a serial number in a file which was
2393 *) New options to 'ca' utility to support V2 CRL entry extensions.
2394 Currently CRL reason, invalidity date and hold instruction are
2395 supported. Add new CRL extensions to V3 code and some new objects.
2398 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2399 disable standard block padding (aka PKCS#5 padding) in the EVP
2400 API, which was previously mandatory. This means that the data is
2401 not padded in any way and so the total length much be a multiple
2402 of the block size, otherwise an error occurs.
2405 *) Initial (incomplete) OCSP SSL support.
2408 *) New function OCSP_parse_url(). This splits up a URL into its host,
2409 port and path components: primarily to parse OCSP URLs. New -url
2410 option to ocsp utility.
2413 *) New nonce behavior. The return value of OCSP_check_nonce() now
2414 reflects the various checks performed. Applications can decide
2415 whether to tolerate certain situations such as an absent nonce
2416 in a response when one was present in a request: the ocsp application
2417 just prints out a warning. New function OCSP_add1_basic_nonce()
2418 this is to allow responders to include a nonce in a response even if
2419 the request is nonce-less.
2422 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2423 skipped when using openssl x509 multiple times on a single input file,
2424 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2427 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2428 set string type: to handle setting ASN1_TIME structures. Fix ca
2429 utility to correctly initialize revocation date of CRLs.
2432 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2433 the clients preferred ciphersuites and rather use its own preferences.
2434 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2435 Internet Explorer by ensuring unchanged hash method during stepup.
2436 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2439 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2440 to aes and add a new 'exist' option to print out symbols that don't
2444 *) Additional options to ocsp utility to allow flags to be set and
2445 additional certificates supplied.
2448 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2449 OCSP client a number of certificate to only verify the response
2453 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2454 handle the new API. Currently only ECB, CBC modes supported. Add new
2457 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2458 Encryption Standard (AES) Ciphersuites for Transport Layer
2459 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2460 not enabled by default and were not part of the "ALL" ciphersuite
2461 alias because they were not yet official; they could be
2462 explicitly requested by specifying the "AESdraft" ciphersuite
2463 group alias. In the final release of OpenSSL 0.9.7, the group
2464 alias is called "AES" and is part of "ALL".)
2465 [Ben Laurie, Steve Henson, Bodo Moeller]
2467 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2468 request to response.
2471 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2472 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2473 extract information from a certificate request. OCSP_response_create()
2474 creates a response and optionally adds a basic response structure.
2475 OCSP_basic_add1_status() adds a complete single response to a basic
2476 response and returns the OCSP_SINGLERESP structure just added (to allow
2477 extensions to be included for example). OCSP_basic_add1_cert() adds a
2478 certificate to a basic response and OCSP_basic_sign() signs a basic
2479 response with various flags. New helper functions ASN1_TIME_check()
2480 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2481 (converts ASN1_TIME to GeneralizedTime).
2484 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2485 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2486 structure from a certificate. X509_pubkey_digest() digests the public_key
2487 contents: this is used in various key identifiers.
2490 *) Make sk_sort() tolerate a NULL argument.
2491 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2493 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2494 passed by the function are trusted implicitly. If any of them signed the
2495 response then it is assumed to be valid and is not verified.
2498 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2499 to data. This was previously part of the PKCS7 ASN1 code. This
2500 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2501 [Steve Henson, reported by Kenneth R. Robinette
2502 <support@securenetterm.com>]
2504 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2505 routines: without these tracing memory leaks is very painful.
2506 Fix leaks in PKCS12 and PKCS7 routines.
2509 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2510 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2511 effectively meant GeneralizedTime would never be used. Now it
2512 is initialised to -1 but X509_time_adj() now has to check the value
2513 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2514 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2515 [Steve Henson, reported by Kenneth R. Robinette
2516 <support@securenetterm.com>]
2518 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2519 result in a zero length in the ASN1_INTEGER structure which was
2520 not consistent with the structure when d2i_ASN1_INTEGER() was used
2521 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2522 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2523 where it did not print out a minus for negative ASN1_INTEGER.
2526 *) Add summary printout to ocsp utility. The various functions which
2527 convert status values to strings have been renamed to:
2528 OCSP_response_status_str(), OCSP_cert_status_str() and
2529 OCSP_crl_reason_str() and are no longer static. New options
2530 to verify nonce values and to disable verification. OCSP response
2531 printout format cleaned up.
2534 *) Add additional OCSP certificate checks. These are those specified
2535 in RFC2560. This consists of two separate checks: the CA of the
2536 certificate being checked must either be the OCSP signer certificate
2537 or the issuer of the OCSP signer certificate. In the latter case the
2538 OCSP signer certificate must contain the OCSP signing extended key
2539 usage. This check is performed by attempting to match the OCSP
2540 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2541 in the OCSP_CERTID structures of the response.
2544 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2545 and related routines. This uses the standard OpenSSL certificate
2546 verify routines to perform initial checks (just CA validity) and
2547 to obtain the certificate chain. Then additional checks will be
2548 performed on the chain. Currently the root CA is checked to see
2549 if it is explicitly trusted for OCSP signing. This is used to set
2550 a root CA as a global signing root: that is any certificate that
2551 chains to that CA is an acceptable OCSP signing certificate.
2554 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2555 extensions from a separate configuration file.
2556 As when reading extensions from the main configuration file,
2557 the '-extensions ...' option may be used for specifying the
2559 [Massimiliano Pala <madwolf@comune.modena.it>]
2561 *) New OCSP utility. Allows OCSP requests to be generated or
2562 read. The request can be sent to a responder and the output
2563 parsed, outputed or printed in text form. Not complete yet:
2564 still needs to check the OCSP response validity.
2567 *) New subcommands for 'openssl ca':
2568 'openssl ca -status <serial>' prints the status of the cert with
2569 the given serial number (according to the index file).
2570 'openssl ca -updatedb' updates the expiry status of certificates
2572 [Massimiliano Pala <madwolf@comune.modena.it>]
2574 *) New '-newreq-nodes' command option to CA.pl. This is like
2575 '-newreq', but calls 'openssl req' with the '-nodes' option
2576 so that the resulting key is not encrypted.
2577 [Damien Miller <djm@mindrot.org>]
2579 *) New configuration for the GNU Hurd.
2580 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2582 *) Initial code to implement OCSP basic response verify. This
2583 is currently incomplete. Currently just finds the signer's
2584 certificate and verifies the signature on the response.
2587 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2588 value of OPENSSLDIR. This is available via the new '-d' option
2589 to 'openssl version', and is also included in 'openssl version -a'.
2592 *) Allowing defining memory allocation callbacks that will be given
2593 file name and line number information in additional arguments
2594 (a const char* and an int). The basic functionality remains, as
2595 well as the original possibility to just replace malloc(),
2596 realloc() and free() by functions that do not know about these
2597 additional arguments. To register and find out the current
2598 settings for extended allocation functions, the following
2599 functions are provided:
2601 CRYPTO_set_mem_ex_functions
2602 CRYPTO_set_locked_mem_ex_functions
2603 CRYPTO_get_mem_ex_functions
2604 CRYPTO_get_locked_mem_ex_functions
2606 These work the same way as CRYPTO_set_mem_functions and friends.
2607 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2608 extended allocation function is enabled.
2609 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2610 a conventional allocation function is enabled.
2611 [Richard Levitte, Bodo Moeller]
2613 *) Finish off removing the remaining LHASH function pointer casts.
2614 There should no longer be any prototype-casting required when using
2615 the LHASH abstraction, and any casts that remain are "bugs". See
2616 the callback types and macros at the head of lhash.h for details
2617 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2620 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2621 If /dev/[u]random devices are not available or do not return enough
2622 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2624 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2625 /etc/entropy will be queried once each in this sequence, quering stops
2626 when enough entropy was collected without querying more sockets.
2629 *) Change the Unix RAND_poll() variant to be able to poll several
2630 random devices, as specified by DEVRANDOM, until a sufficient amount
2631 of data has been collected. We spend at most 10 ms on each file
2632 (select timeout) and read in non-blocking mode. DEVRANDOM now
2633 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2634 (previously it was just the string "/dev/urandom"), so on typical
2635 platforms the 10 ms delay will never occur.
2636 Also separate out the Unix variant to its own file, rand_unix.c.
2637 For VMS, there's a currently-empty rand_vms.c.
2640 *) Move OCSP client related routines to ocsp_cl.c. These
2641 provide utility functions which an application needing
2642 to issue a request to an OCSP responder and analyse the
2643 response will typically need: as opposed to those which an
2644 OCSP responder itself would need which will be added later.
2646 OCSP_request_sign() signs an OCSP request with an API similar
2647 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2648 response. OCSP_response_get1_basic() extracts basic response
2649 from response. OCSP_resp_find_status(): finds and extracts status
2650 information from an OCSP_CERTID structure (which will be created
2651 when the request structure is built). These are built from lower
2652 level functions which work on OCSP_SINGLERESP structures but
2653 wont normally be used unless the application wishes to examine
2654 extensions in the OCSP response for example.
2656 Replace nonce routines with a pair of functions.
2657 OCSP_request_add1_nonce() adds a nonce value and optionally
2658 generates a random value. OCSP_check_nonce() checks the
2659 validity of the nonce in an OCSP response.
2662 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2663 This doesn't copy the supplied OCSP_CERTID and avoids the
2664 need to free up the newly created id. Change return type
2665 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2666 This can then be used to add extensions to the request.
2667 Deleted OCSP_request_new(), since most of its functionality
2668 is now in OCSP_REQUEST_new() (and the case insensitive name
2669 clash) apart from the ability to set the request name which
2670 will be added elsewhere.
2673 *) Update OCSP API. Remove obsolete extensions argument from
2674 various functions. Extensions are now handled using the new
2675 OCSP extension code. New simple OCSP HTTP function which
2676 can be used to send requests and parse the response.
2679 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2680 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2681 uses the special reorder version of SET OF to sort the attributes
2682 and reorder them to match the encoded order. This resolves a long
2683 standing problem: a verify on a PKCS7 structure just after signing
2684 it used to fail because the attribute order did not match the
2685 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2686 it uses the received order. This is necessary to tolerate some broken
2687 software that does not order SET OF. This is handled by encoding
2688 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2689 to produce the required SET OF.
2692 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2693 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2694 files to get correct declarations of the ASN.1 item variables.
2697 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2698 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2699 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2700 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2701 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2702 ASN1_ITEM and no wrapper functions.
2705 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2706 replace the old function pointer based I/O routines. Change most of
2707 the *_d2i_bio() and *_d2i_fp() functions to use these.
2710 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2711 lines, recognice more "algorithms" that can be deselected, and make
2712 it complain about algorithm deselection that isn't recognised.
2715 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2716 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2717 to use new functions. Add NO_ASN1_OLD which can be set to remove
2718 some old style ASN1 functions: this can be used to determine if old
2719 code will still work when these eventually go away.
2722 *) New extension functions for OCSP structures, these follow the
2723 same conventions as certificates and CRLs.
2726 *) New function X509V3_add1_i2d(). This automatically encodes and
2727 adds an extension. Its behaviour can be customised with various
2728 flags to append, replace or delete. Various wrappers added for
2729 certifcates and CRLs.
2732 *) Fix to avoid calling the underlying ASN1 print routine when
2733 an extension cannot be parsed. Correct a typo in the
2734 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2737 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2738 entries for variables.
2741 *) Add functionality to apps/openssl.c for detecting locking
2742 problems: As the program is single-threaded, all we have
2743 to do is register a locking callback using an array for
2744 storing which locks are currently held by the program.
2747 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2748 SSL_get_ex_data_X509_STORE_idx(), which is used in
2749 ssl_verify_cert_chain() and thus can be called at any time
2750 during TLS/SSL handshakes so that thread-safety is essential.
2751 Unfortunately, the ex_data design is not at all suited
2752 for multi-threaded use, so it probably should be abolished.
2755 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2756 [Broadcom, tweaked and integrated by Geoff Thorpe]
2758 *) Move common extension printing code to new function
2759 X509V3_print_extensions(). Reorganise OCSP print routines and
2760 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2763 *) New function X509_signature_print() to remove duplication in some
2767 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2768 set (this was treated exactly the same as SET OF previously). This
2769 is used to reorder the STACK representing the structure to match the
2770 encoding. This will be used to get round a problem where a PKCS7
2771 structure which was signed could not be verified because the STACK
2772 order did not reflect the encoded order.
2775 *) Reimplement the OCSP ASN1 module using the new code.
2778 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2779 for its ASN1 operations. The old style function pointers still exist
2780 for now but they will eventually go away.
2783 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2784 completely replaces the old ASN1 functionality with a table driven
2785 encoder and decoder which interprets an ASN1_ITEM structure describing
2786 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2787 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2788 has also been converted to the new form.
2791 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2792 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2793 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2794 for negative moduli.
2797 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2798 of not touching the result's sign bit.
2801 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2805 *) Changed the LHASH code to use prototypes for callbacks, and created
2806 macros to declare and implement thin (optionally static) functions
2807 that provide type-safety and avoid function pointer casting for the
2808 type-specific callbacks.
2811 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2813 [Veers Staats <staatsvr@asc.hpc.mil>,
2814 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2816 *) Reformat the FAQ so the different questions and answers can be divided
2817 in sections depending on the subject.
2820 *) Have the zlib compression code load ZLIB.DLL dynamically under
2824 *) New function BN_mod_sqrt for computing square roots modulo a prime
2825 (using the probabilistic Tonelli-Shanks algorithm unless
2826 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2827 be handled deterministically).
2828 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2830 *) Make BN_mod_inverse faster by explicitly handling small quotients
2831 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2832 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2835 *) New function BN_kronecker.
2838 *) Fix BN_gcd so that it works on negative inputs; the result is
2839 positive unless both parameters are zero.
2840 Previously something reasonably close to an infinite loop was
2841 possible because numbers could be growing instead of shrinking
2842 in the implementation of Euclid's algorithm.
2845 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2846 sign of the number in question.
2848 Fix BN_is_word(a,w) to work correctly for w == 0.
2850 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2851 because its test if the absolute value of 'a' equals 'w'.
2852 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2853 it exists mostly for use in the implementations of BN_is_zero(),
2854 BN_is_one(), and BN_is_word().
2857 *) New function BN_swap.
2860 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2861 the exponentiation functions are more likely to produce reasonable
2862 results on negative inputs.
2865 *) Change BN_mod_mul so that the result is always non-negative.
2866 Previously, it could be negative if one of the factors was negative;
2867 I don't think anyone really wanted that behaviour.
2870 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2871 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2872 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2873 and add new functions:
2882 BN_mod_lshift1_quick
2886 These functions always generate non-negative results.
2888 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2889 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2891 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2892 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2893 be reduced modulo m.
2894 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2897 The following entry accidentily appeared in the CHANGES file
2898 distributed with OpenSSL 0.9.7. The modifications described in
2899 it do *not* apply to OpenSSL 0.9.7.
2901 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2902 was actually never needed) and in BN_mul(). The removal in BN_mul()
2903 required a small change in bn_mul_part_recursive() and the addition
2904 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2905 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2906 bn_sub_words() and bn_add_words() except they take arrays with
2911 *) In 'openssl passwd', verify passwords read from the terminal
2912 unless the '-salt' option is used (which usually means that
2913 verification would just waste user's time since the resulting
2914 hash is going to be compared with some given password hash)
2915 or the new '-noverify' option is used.
2917 This is an incompatible change, but it does not affect
2918 non-interactive use of 'openssl passwd' (passwords on the command
2919 line, '-stdin' option, '-in ...' option) and thus should not
2923 *) Remove all references to RSAref, since there's no more need for it.
2926 *) Make DSO load along a path given through an environment variable
2927 (SHLIB_PATH) with shl_load().
2930 *) Constify the ENGINE code as a result of BIGNUM constification.
2931 Also constify the RSA code and most things related to it. In a
2932 few places, most notable in the depth of the ASN.1 code, ugly
2933 casts back to non-const were required (to be solved at a later
2937 *) Make it so the openssl application has all engines loaded by default.
2940 *) Constify the BIGNUM routines a little more.
2943 *) Add the following functions:
2945 ENGINE_load_cswift()
2947 ENGINE_load_atalla()
2949 ENGINE_load_builtin_engines()
2951 That way, an application can itself choose if external engines that
2952 are built-in in OpenSSL shall ever be used or not. The benefit is
2953 that applications won't have to be linked with libdl or other dso
2954 libraries unless it's really needed.
2956 Changed 'openssl engine' to load all engines on demand.
2957 Changed the engine header files to avoid the duplication of some
2958 declarations (they differed!).
2961 *) 'openssl engine' can now list capabilities.
2964 *) Better error reporting in 'openssl engine'.
2967 *) Never call load_dh_param(NULL) in s_server.
2970 *) Add engine application. It can currently list engines by name and
2971 identity, and test if they are actually available.
2974 *) Improve RPM specification file by forcing symbolic linking and making
2975 sure the installed documentation is also owned by root.root.
2976 [Damien Miller <djm@mindrot.org>]
2978 *) Give the OpenSSL applications more possibilities to make use of
2979 keys (public as well as private) handled by engines.
2982 *) Add OCSP code that comes from CertCo.
2985 *) Add VMS support for the Rijndael code.
2988 *) Added untested support for Nuron crypto accelerator.
2991 *) Add support for external cryptographic devices. This code was
2992 previously distributed separately as the "engine" branch.
2993 [Geoff Thorpe, Richard Levitte]
2995 *) Rework the filename-translation in the DSO code. It is now possible to
2996 have far greater control over how a "name" is turned into a filename
2997 depending on the operating environment and any oddities about the
2998 different shared library filenames on each system.
3001 *) Support threads on FreeBSD-elf in Configure.
3004 *) Fix for SHA1 assembly problem with MASM: it produces
3005 warnings about corrupt line number information when assembling
3006 with debugging information. This is caused by the overlapping
3008 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3011 NCONF_get_number() has no error checking at all. As a replacement,
3012 NCONF_get_number_e() is defined (_e for "error checking") and is
3013 promoted strongly. The old NCONF_get_number is kept around for
3014 binary backward compatibility.
3015 Make it possible for methods to load from something other than a BIO,
3016 by providing a function pointer that is given a name instead of a BIO.
3017 For example, this could be used to load configuration data from an
3021 *) Fix for non blocking accept BIOs. Added new I/O special reason
3022 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3023 with non blocking I/O was not possible because no retry code was
3024 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3028 *) Added the beginnings of Rijndael support.
3031 *) Fix for bug in DirectoryString mask setting. Add support for
3032 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3033 to allow certificate printing to more controllable, additional
3034 'certopt' option to 'x509' to allow new printing options to be
3038 *) Clean old EAY MD5 hack from e_os.h.
3041 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3043 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3044 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
3045 [Joe Orton, Steve Henson]
3047 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3049 *) Fix additional bug revealed by the NISCC test suite:
3051 Stop bug triggering large recursion when presented with
3052 certain ASN.1 tags (CAN-2003-0851)
3055 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3057 *) Fix various bugs revealed by running the NISCC test suite:
3059 Stop out of bounds reads in the ASN1 code when presented with
3060 invalid tags (CAN-2003-0543 and CAN-2003-0544).
3062 If verify callback ignores invalid public key errors don't try to check
3063 certificate signature with the NULL public key.
3067 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3068 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3072 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3073 extra data after the compression methods not only for TLS 1.0
3074 but also for SSL 3.0 (as required by the specification).
3075 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3077 *) Change X509_certificate_type() to mark the key as exported/exportable
3078 when it's 512 *bits* long, not 512 bytes.
3081 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3083 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3084 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3085 a protocol version number mismatch like a decryption error
3086 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3089 *) Turn on RSA blinding by default in the default implementation
3090 to avoid a timing attack. Applications that don't want it can call
3091 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3092 They would be ill-advised to do so in most cases.
3093 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3095 *) Change RSA blinding code so that it works when the PRNG is not
3096 seeded (in this case, the secret RSA exponent is abused as
3097 an unpredictable seed -- if it is not unpredictable, there
3098 is no point in blinding anyway). Make RSA blinding thread-safe
3099 by remembering the creator's thread ID in rsa->blinding and
3100 having all other threads use local one-time blinding factors
3101 (this requires more computation than sharing rsa->blinding, but
3102 avoids excessive locking; and if an RSA object is not shared
3103 between threads, blinding will still be very fast).
3106 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3108 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3109 via timing by performing a MAC computation even if incorrrect
3110 block cipher padding has been found. This is a countermeasure
3111 against active attacks where the attacker has to distinguish
3112 between bad padding and a MAC verification error. (CAN-2003-0078)
3114 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3115 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3116 Martin Vuagnoux (EPFL, Ilion)]
3118 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3120 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3121 memory from it's contents. This is done with a counter that will
3122 place alternating values in each byte. This can be used to solve
3123 two issues: 1) the removal of calls to memset() by highly optimizing
3124 compilers, and 2) cleansing with other values than 0, since those can
3125 be read through on certain media, for example a swap space on disk.
3128 *) Bugfix: client side session caching did not work with external caching,
3129 because the session->cipher setting was not restored when reloading
3130 from the external cache. This problem was masked, when
3131 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3132 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3135 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3136 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3137 [Zeev Lieber <zeev-l@yahoo.com>]
3139 *) Undo an undocumented change introduced in 0.9.6e which caused
3140 repeated calls to OpenSSL_add_all_ciphers() and
3141 OpenSSL_add_all_digests() to be ignored, even after calling
3145 *) Change the default configuration reader to deal with last line not
3146 being properly terminated.
3149 *) Change X509_NAME_cmp() so it applies the special rules on handling
3150 DN values that are of type PrintableString, as well as RDNs of type
3151 emailAddress where the value has the type ia5String.
3152 [stefank@valicert.com via Richard Levitte]
3154 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3155 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3156 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3157 the bitwise-OR of the two for use by the majority of applications
3158 wanting this behaviour, and update the docs. The documented
3159 behaviour and actual behaviour were inconsistent and had been
3160 changing anyway, so this is more a bug-fix than a behavioural
3162 [Geoff Thorpe, diagnosed by Nadav Har'El]
3164 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3165 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3168 *) Fix initialization code race conditions in
3169 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3170 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3171 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3172 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3173 ssl2_get_cipher_by_char(),
3174 ssl3_get_cipher_by_char().
3175 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3177 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3178 the cached sessions are flushed, as the remove_cb() might use ex_data
3179 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3180 (see [openssl.org #212]).
3181 [Geoff Thorpe, Lutz Jaenicke]
3183 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3184 length, instead of the encoding length to d2i_ASN1_OBJECT.
3187 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3189 *) [In 0.9.6g-engine release:]
3190 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3191 [Lynn Gazis <lgazis@rainbow.com>]
3193 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3195 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3196 and get fix the header length calculation.
3197 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3198 Alon Kantor <alonk@checkpoint.com> (and others),
3201 *) Use proper error handling instead of 'assertions' in buffer
3202 overflow checks added in 0.9.6e. This prevents DoS (the
3203 assertions could call abort()).
3204 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3206 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3208 *) Add various sanity checks to asn1_get_length() to reject
3209 the ASN1 length bytes if they exceed sizeof(long), will appear
3210 negative or the content length exceeds the length of the
3212 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3214 *) Fix cipher selection routines: ciphers without encryption had no flags
3215 for the cipher strength set and where therefore not handled correctly
3216 by the selection routines (PR #130).
3219 *) Fix EVP_dsa_sha macro.
3223 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3224 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3225 that was added in OpenSSL 0.9.6d.
3227 As the countermeasure turned out to be incompatible with some
3228 broken SSL implementations, the new option is part of SSL_OP_ALL.
3229 SSL_OP_ALL is usually employed when compatibility with weird SSL
3230 implementations is desired (e.g. '-bugs' option to 's_client' and
3231 's_server'), so the new option is automatically set in many
3235 *) Changes in security patch:
3237 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3238 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3239 Air Force Materiel Command, USAF, under agreement number
3242 *) Add various sanity checks to asn1_get_length() to reject
3243 the ASN1 length bytes if they exceed sizeof(long), will appear
3244 negative or the content length exceeds the length of the
3245 supplied buffer. (CAN-2002-0659)
3246 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3248 *) Assertions for various potential buffer overflows, not known to
3250 [Ben Laurie (CHATS)]
3252 *) Various temporary buffers to hold ASCII versions of integers were
3253 too small for 64 bit platforms. (CAN-2002-0655)
3254 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3256 *) Remote buffer overflow in SSL3 protocol - an attacker could
3257 supply an oversized session ID to a client. (CAN-2002-0656)
3258 [Ben Laurie (CHATS)]
3260 *) Remote buffer overflow in SSL2 protocol - an attacker could
3261 supply an oversized client master key. (CAN-2002-0656)
3262 [Ben Laurie (CHATS)]
3264 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3266 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3267 encoded as NULL) with id-dsa-with-sha1.
3268 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3270 *) Check various X509_...() return values in apps/req.c.
3271 [Nils Larsch <nla@trustcenter.de>]
3273 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3274 an end-of-file condition would erronously be flagged, when the CRLF
3275 was just at the end of a processed block. The bug was discovered when
3276 processing data through a buffering memory BIO handing the data to a
3277 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3278 <ptsekov@syntrex.com> and Nedelcho Stanev.
3281 *) Implement a countermeasure against a vulnerability recently found
3282 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3283 before application data chunks to avoid the use of known IVs
3284 with data potentially chosen by the attacker.
3287 *) Fix length checks in ssl3_get_client_hello().
3290 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3291 to prevent ssl3_read_internal() from incorrectly assuming that
3292 ssl3_read_bytes() found application data while handshake
3293 processing was enabled when in fact s->s3->in_read_app_data was
3294 merely automatically cleared during the initial handshake.
3295 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3297 *) Fix object definitions for Private and Enterprise: they were not
3298 recognized in their shortname (=lowercase) representation. Extend
3299 obj_dat.pl to issue an error when using undefined keywords instead
3300 of silently ignoring the problem (Svenning Sorensen
3301 <sss@sss.dnsalias.net>).
3304 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3305 generators, i.e. generators other than 2 and 5. (Previously, the
3306 code did not properly initialise the 'add' and 'rem' values to
3307 BN_generate_prime().)
3309 In the new general case, we do not insist that 'generator' is
3310 actually a primitive root: This requirement is rather pointless;
3311 a generator of the order-q subgroup is just as good, if not
3315 *) Map new X509 verification errors to alerts. Discovered and submitted by
3316 Tom Wu <tom@arcot.com>.
3319 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3320 returning non-zero before the data has been completely received
3321 when using non-blocking I/O.
3322 [Bodo Moeller; problem pointed out by John Hughes]
3324 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3325 [Ben Laurie, Lutz Jaenicke]
3327 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3328 Yoram Zahavi <YoramZ@gilian.com>).
3331 *) Add information about CygWin 1.3 and on, and preserve proper
3332 configuration for the versions before that.
3333 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3335 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3336 check whether we deal with a copy of a session and do not delete from
3337 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3338 <izhar@checkpoint.com>.
3341 *) Do not store session data into the internal session cache, if it
3342 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3343 flag is set). Proposed by Aslam <aslam@funk.com>.
3346 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3350 *) [In 0.9.6d-engine release:]
3351 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3352 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3354 *) Add the configuration target linux-s390x.
3355 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3357 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3358 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3359 variable as an indication that a ClientHello message has been
3360 received. As the flag value will be lost between multiple
3361 invocations of ssl3_accept when using non-blocking I/O, the
3362 function may not be aware that a handshake has actually taken
3363 place, thus preventing a new session from being added to the
3366 To avoid this problem, we now set s->new_session to 2 instead of
3367 using a local variable.
3368 [Lutz Jaenicke, Bodo Moeller]
3370 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3371 if the SSL_R_LENGTH_MISMATCH error is detected.
3372 [Geoff Thorpe, Bodo Moeller]
3374 *) New 'shared_ldflag' column in Configure platform table.
3377 *) Fix EVP_CIPHER_mode macro.
3378 ["Dan S. Camper" <dan@bti.net>]
3380 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3381 type, we must throw them away by setting rr->length to 0.
3382 [D P Chang <dpc@qualys.com>]
3384 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3386 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3387 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3388 worked incorrectly for those cases where range = 10..._2 and
3389 3*range is two bits longer than range.)
3392 *) Only add signing time to PKCS7 structures if it is not already
3396 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3397 OBJ_ld_ce should be OBJ_id_ce.
3398 Also some ip-pda OIDs in crypto/objects/objects.txt were
3399 incorrect (cf. RFC 3039).
3400 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3402 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3403 returns early because it has nothing to do.
3404 [Andy Schneider <andy.schneider@bjss.co.uk>]
3406 *) [In 0.9.6c-engine release:]
3407 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3408 [Andy Schneider <andy.schneider@bjss.co.uk>]
3410 *) [In 0.9.6c-engine release:]
3411 Add support for Cryptographic Appliance's keyserver technology.
3412 (Use engine 'keyclient')
3413 [Cryptographic Appliances and Geoff Thorpe]
3415 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3416 is called via tools/c89.sh because arguments have to be
3417 rearranged (all '-L' options must appear before the first object
3419 [Richard Shapiro <rshapiro@abinitio.com>]
3421 *) [In 0.9.6c-engine release:]
3422 Add support for Broadcom crypto accelerator cards, backported
3424 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3426 *) [In 0.9.6c-engine release:]
3427 Add support for SureWare crypto accelerator cards from
3428 Baltimore Technologies. (Use engine 'sureware')
3429 [Baltimore Technologies and Mark Cox]
3431 *) [In 0.9.6c-engine release:]
3432 Add support for crypto accelerator cards from Accelerated
3433 Encryption Processing, www.aep.ie. (Use engine 'aep')
3434 [AEP Inc. and Mark Cox]
3436 *) Add a configuration entry for gcc on UnixWare.
3437 [Gary Benson <gbenson@redhat.com>]
3439 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3440 messages are stored in a single piece (fixed-length part and
3441 variable-length part combined) and fix various bugs found on the way.
3444 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3445 instead. BIO_gethostbyname() does not know what timeouts are
3446 appropriate, so entries would stay in cache even when they have
3448 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3450 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3451 faced with a pathologically small ClientHello fragment that does
3452 not contain client_version: Instead of aborting with an error,
3453 simply choose the highest available protocol version (i.e.,
3454 TLS 1.0 unless it is disabled). In practice, ClientHello
3455 messages are never sent like this, but this change gives us
3456 strictly correct behaviour at least for TLS.
3459 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3460 never resets s->method to s->ctx->method when called from within
3461 one of the SSL handshake functions.
3462 [Bodo Moeller; problem pointed out by Niko Baric]
3464 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3465 (sent using the client's version number) if client_version is
3466 smaller than the protocol version in use. Also change
3467 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3468 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3469 the client will at least see that alert.
3472 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3476 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3477 client receives HelloRequest while in a handshake.
3478 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3480 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3481 should end in 'break', not 'goto end' which circuments various
3482 cleanups done in state SSL_ST_OK. But session related stuff
3483 must be disabled for SSL_ST_OK in the case that we just sent a
3486 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3487 before just sending a HelloRequest.
3488 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3490 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3491 reveal whether illegal block cipher padding was found or a MAC
3492 verification error occured. (Neither SSLerr() codes nor alerts
3493 are directly visible to potential attackers, but the information
3494 may leak via logfiles.)
3496 Similar changes are not required for the SSL 2.0 implementation
3497 because the number of padding bytes is sent in clear for SSL 2.0,
3498 and the extra bytes are just ignored. However ssl/s2_pkt.c
3499 failed to verify that the purported number of padding bytes is in
3503 *) Add OpenUNIX-8 support including shared libraries
3504 (Boyd Lynn Gerber <gerberb@zenez.com>).
3507 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3508 'wristwatch attack' using huge encoding parameters (cf.
3509 James H. Manger's CRYPTO 2001 paper). Note that the
3510 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3511 encoding parameters and hence was not vulnerable.
3514 *) BN_sqr() bug fix.
3515 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3517 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3518 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3519 followed by modular reduction.
3520 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3522 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3523 equivalent based on BN_pseudo_rand() instead of BN_rand().
3526 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3527 This function was broken, as the check for a new client hello message
3528 to handle SGC did not allow these large messages.
3529 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3532 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3535 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3536 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3539 *) Rework the configuration and shared library support for Tru64 Unix.
3540 The configuration part makes use of modern compiler features and
3541 still retains old compiler behavior for those that run older versions
3542 of the OS. The shared library support part includes a variant that
3543 uses the RPATH feature, and is available through the special
3544 configuration target "alpha-cc-rpath", which will never be selected
3546 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3548 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3549 with the same message size as in ssl3_get_certificate_request().
3550 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3551 messages might inadvertently be reject as too long.
3552 [Petr Lampa <lampa@fee.vutbr.cz>]
3554 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3557 *) Modified SSL library such that the verify_callback that has been set
3558 specificly for an SSL object with SSL_set_verify() is actually being
3559 used. Before the change, a verify_callback set with this function was
3560 ignored and the verify_callback() set in the SSL_CTX at the time of
3561 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3562 to allow the necessary settings.
3565 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3566 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3567 done automatically (in contradiction to the requirements of the C
3568 standard). This made problems when used from OpenSSH.
3571 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3572 dh->length and always used
3574 BN_rand_range(priv_key, dh->p).
3576 BN_rand_range() is not necessary for Diffie-Hellman, and this
3577 specific range makes Diffie-Hellman unnecessarily inefficient if
3578 dh->length (recommended exponent length) is much smaller than the
3579 length of dh->p. We could use BN_rand_range() if the order of
3580 the subgroup was stored in the DH structure, but we only have
3585 BN_rand(priv_key, l, ...)
3587 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3593 RSA_eay_public_encrypt
3594 RSA_eay_private_decrypt
3595 RSA_eay_private_encrypt (signing)
3596 RSA_eay_public_decrypt (signature verification)
3598 (default implementations for RSA_public_encrypt,
3599 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3600 always reject numbers >= n.
3603 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3604 to synchronize access to 'locking_thread'. This is necessary on
3605 systems where access to 'locking_thread' (an 'unsigned long'
3606 variable) is not atomic.
3609 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3610 *before* setting the 'crypto_lock_rand' flag. The previous code had
3611 a race condition if 0 is a valid thread ID.
3612 [Travis Vitek <vitek@roguewave.com>]
3614 *) Add support for shared libraries under Irix.
3615 [Albert Chin-A-Young <china@thewrittenword.com>]
3617 *) Add configuration option to build on Linux on both big-endian and
3619 [Ralf Baechle <ralf@uni-koblenz.de>]
3621 *) Add the possibility to create shared libraries on HP-UX.
3624 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3626 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3627 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3628 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3629 PRNG state recovery was possible based on the output of
3630 one PRNG request appropriately sized to gain knowledge on
3631 'md' followed by enough consecutive 1-byte PRNG requests
3632 to traverse all of 'state'.
3634 1. When updating 'md_local' (the current thread's copy of 'md')
3635 during PRNG output generation, hash all of the previous
3636 'md_local' value, not just the half used for PRNG output.
3638 2. Make the number of bytes from 'state' included into the hash
3639 independent from the number of PRNG bytes requested.
3641 The first measure alone would be sufficient to avoid
3642 Markku-Juhani's attack. (Actually it had never occurred
3643 to me that the half of 'md_local' used for chaining was the
3644 half from which PRNG output bytes were taken -- I had always
3645 assumed that the secret half would be used.) The second
3646 measure makes sure that additional data from 'state' is never
3647 mixed into 'md_local' in small portions; this heuristically
3648 further strengthens the PRNG.
3651 *) Fix crypto/bn/asm/mips3.s.
3654 *) When only the key is given to "enc", the IV is undefined. Print out
3655 an error message in this case.
3658 *) Handle special case when X509_NAME is empty in X509 printing routines.
3661 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3662 positive and less than q.
3665 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3666 used: it isn't thread safe and the add_lock_callback should handle
3668 [Paul Rose <Paul.Rose@bridge.com>]
3670 *) Verify that incoming data obeys the block size in
3671 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3675 [Ulf Möller, Bodo Möller]
3677 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3678 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3679 when fixing the server behaviour for backwards-compatible 'client
3680 hello' messages. (Note that the attack is impractical against
3681 SSL 3.0 and TLS 1.0 anyway because length and version checking
3682 means that the probability of guessing a valid ciphertext is
3683 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3686 Before 0.9.5, the countermeasure (hide the error by generating a
3687 random 'decryption result') did not work properly because
3688 ERR_clear_error() was missing, meaning that SSL_get_error() would
3689 detect the supposedly ignored error.
3691 Both problems are now fixed.
3694 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3695 (previously it was 1024).
3698 *) Fix for compatibility mode trust settings: ignore trust settings
3699 unless some valid trust or reject settings are present.
3702 *) Fix for blowfish EVP: its a variable length cipher.
3705 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3706 parameters in DSA public key structures and return an error in the
3707 DSA routines if parameters are absent.
3710 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3711 in the current directory if neither $RANDFILE nor $HOME was set.
3712 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3713 caused some confusion to Windows users who haven't defined $HOME.
3714 Thus RAND_file_name() is changed again: e_os.h can define a
3715 DEFAULT_HOME, which will be used if $HOME is not set.
3716 For Windows, we use "C:"; on other platforms, we still require
3717 environment variables.
3719 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3720 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3721 having multiple threads call RAND_poll() concurrently.
3724 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3725 combination of a flag and a thread ID variable.
3726 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3727 flag), *other* threads can enter ssleay_add_bytes without obeying
3728 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3729 that they do not hold after the first thread unsets add_do_not_lock).
3732 *) Change bctest again: '-x' expressions are not available in all
3736 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3738 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3739 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3741 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3742 the default extension for executables, if any. Also, make the perl
3743 scripts that use symlink() to test if it really exists and use "cp"
3744 if it doesn't. All this made OpenSSL compilable and installable in
3748 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3749 If SEQUENCE is length is indefinite just set c->slen to the total
3750 amount of data available.
3751 [Steve Henson, reported by shige@FreeBSD.org]
3752 [This change does not apply to 0.9.7.]
3754 *) Change bctest to avoid here-documents inside command substitution
3755 (workaround for FreeBSD /bin/sh bug).
3756 For compatibility with Ultrix, avoid shell functions (introduced
3757 in the bctest version that searches along $PATH).
3760 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3761 with des_encrypt() defined on some operating systems, like Solaris
3765 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3766 On the Importance of Eliminating Errors in Cryptographic
3767 Computations, J. Cryptology 14 (2001) 2, 101-119,
3768 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3771 *) MIPS assembler BIGNUM division bug fix.
3774 *) Disabled incorrect Alpha assembler code.
3777 *) Fix PKCS#7 decode routines so they correctly update the length
3778 after reading an EOC for the EXPLICIT tag.
3780 [This change does not apply to 0.9.7.]
3782 *) Fix bug in PKCS#12 key generation routines. This was triggered
3783 if a 3DES key was generated with a 0 initial byte. Include
3784 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3785 (but broken) behaviour.
3788 *) Enhance bctest to search for a working bc along $PATH and print
3790 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3792 *) Fix memory leaks in err.c: free err_data string if necessary;
3793 don't write to the wrong index in ERR_set_error_data.
3796 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3800 *) Replace rdtsc with _emit statements for VC++ version 5.
3801 [Jeremy Cooper <jeremy@baymoo.org>]
3803 *) Make it possible to reuse SSLv2 sessions.
3806 *) In copy_email() check for >= 0 as a return value for
3807 X509_NAME_get_index_by_NID() since 0 is a valid index.
3808 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3810 *) Avoid coredump with unsupported or invalid public keys by checking if
3811 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3812 PKCS7_verify() fails with non detached data.
3815 *) Don't use getenv in library functions when run as setuid/setgid.
3816 New function OPENSSL_issetugid().
3819 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3820 due to incorrect handling of multi-threading:
3822 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3824 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3826 3. Count how many times MemCheck_off() has been called so that
3827 nested use can be treated correctly. This also avoids
3828 inband-signalling in the previous code (which relied on the
3829 assumption that thread ID 0 is impossible).
3832 *) Add "-rand" option also to s_client and s_server.
3835 *) Fix CPU detection on Irix 6.x.
3836 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3837 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3839 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3842 [This change does not apply to 0.9.7.]
3844 *) Use the cached encoding of an X509_NAME structure rather than
3845 copying it. This is apparently the reason for the libsafe "errors"
3846 but the code is actually correct.
3849 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3850 Bleichenbacher's DSA attack.
3851 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3852 to be set and top=0 forces the highest bit to be set; top=-1 is new
3853 and leaves the highest bit random.
3854 [Ulf Moeller, Bodo Moeller]
3856 *) In the NCONF_...-based implementations for CONF_... queries
3857 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3858 a temporary CONF structure with the data component set to NULL
3859 (which gives segmentation faults in lh_retrieve).
3860 Instead, use NULL for the CONF pointer in CONF_get_string and
3861 CONF_get_number (which may use environment variables) and directly
3862 return NULL from CONF_get_section.
3865 *) Fix potential buffer overrun for EBCDIC.
3868 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3869 keyUsage if basicConstraints absent for a CA.
3872 *) Make SMIME_write_PKCS7() write mail header values with a format that
3873 is more generally accepted (no spaces before the semicolon), since
3874 some programs can't parse those values properly otherwise. Also make
3875 sure BIO's that break lines after each write do not create invalid
3879 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3880 macros previously used would not encode an empty SEQUENCE OF
3881 and break the signature.
3883 [This change does not apply to 0.9.7.]
3885 *) Zero the premaster secret after deriving the master secret in
3889 *) Add some EVP_add_digest_alias registrations (as found in
3890 OpenSSL_add_all_digests()) to SSL_library_init()
3891 aka OpenSSL_add_ssl_algorithms(). This provides improved
3892 compatibility with peers using X.509 certificates
3893 with unconventional AlgorithmIdentifier OIDs.
3896 *) Fix for Irix with NO_ASM.
3897 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3899 *) ./config script fixes.
3900 [Ulf Moeller, Richard Levitte]
3902 *) Fix 'openssl passwd -1'.
3905 *) Change PKCS12_key_gen_asc() so it can cope with non null
3906 terminated strings whose length is passed in the passlen
3907 parameter, for example from PEM callbacks. This was done
3908 by adding an extra length parameter to asc2uni().
3909 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3911 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3912 call failed, free the DSA structure.
3915 *) Fix to uni2asc() to cope with zero length Unicode strings.
3916 These are present in some PKCS#12 files.
3919 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3920 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3921 when writing a 32767 byte record.
3922 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3924 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3925 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3927 (RSA objects have a reference count access to which is protected
3928 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3929 so they are meant to be shared between threads.)
3930 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3931 "Reddie, Steven" <Steven.Reddie@ca.com>]
3933 *) Fix a deadlock in CRYPTO_mem_leaks().
3936 *) Use better test patterns in bntest.
3939 *) rand_win.c fix for Borland C.
3942 *) BN_rshift bugfix for n == 0.
3945 *) Add a 'bctest' script that checks for some known 'bc' bugs
3946 so that 'make test' does not abort just because 'bc' is broken.
3949 *) Store verify_result within SSL_SESSION also for client side to
3950 avoid potential security hole. (Re-used sessions on the client side
3951 always resulted in verify_result==X509_V_OK, not using the original
3952 result of the server certificate verification.)
3955 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3956 SSL3_RT_APPLICATION_DATA, return 0.
3957 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3961 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3962 releases, have been re-implemented by renaming the previous
3963 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3964 and ssl3_read_internal, respectively, and adding 'peek' parameters
3965 to them. The new ssl[23]_{read,peek} functions are calls to
3966 ssl[23]_read_internal with the 'peek' flag set appropriately.
3967 A 'peek' parameter has also been added to ssl3_read_bytes, which
3968 does the actual work for ssl3_read_internal.
3971 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3972 the method-specific "init()" handler. Also clean up ex_data after
3973 calling the method-specific "finish()" handler. Previously, this was
3974 happening the other way round.
3977 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3978 The previous value, 12, was not always sufficient for BN_mod_exp().
3981 *) Make sure that shared libraries get the internal name engine with
3982 the full version number and not just 0. This should mark the
3983 shared libraries as not backward compatible. Of course, this should
3984 be changed again when we can guarantee backward binary compatibility.
3987 *) Fix typo in get_cert_by_subject() in by_dir.c
3988 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3990 *) Rework the system to generate shared libraries:
3992 - Make note of the expected extension for the shared libraries and
3993 if there is a need for symbolic links from for example libcrypto.so.0
3994 to libcrypto.so.0.9.7. There is extended info in Configure for
3997 - Make as few rebuilds of the shared libraries as possible.
3999 - Still avoid linking the OpenSSL programs with the shared libraries.
4001 - When installing, install the shared libraries separately from the
4005 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4007 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4008 and not in SSL_clear because the latter is also used by the
4009 accept/connect functions; previously, the settings made by
4010 SSL_set_read_ahead would be lost during the handshake.
4011 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4013 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4014 Previously, it would create entries for disableed algorithms no
4018 *) Added several new manual pages for SSL_* function.
4021 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4023 *) In ssl23_get_client_hello, generate an error message when faced
4024 with an initial SSL 3.0/TLS record that is too small to contain the
4025 first two bytes of the ClientHello message, i.e. client_version.
4026 (Note that this is a pathologic case that probably has never happened
4027 in real life.) The previous approach was to use the version number
4028 from the record header as a substitute; but our protocol choice
4029 should not depend on that one because it is not authenticated
4030 by the Finished messages.
4033 *) More robust randomness gathering functions for Windows.
4034 [Jeffrey Altman <jaltman@columbia.edu>]
4036 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4037 not set then we don't setup the error code for issuer check errors
4038 to avoid possibly overwriting other errors which the callback does
4039 handle. If an application does set the flag then we assume it knows
4040 what it is doing and can handle the new informational codes
4044 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4045 a general "ANY" type, as such it should be able to decode anything
4046 including tagged types. However it didn't check the class so it would
4047 wrongly interpret tagged types in the same way as their universal
4048 counterpart and unknown types were just rejected. Changed so that the
4049 tagged and unknown types are handled in the same way as a SEQUENCE:
4050 that is the encoding is stored intact. There is also a new type
4051 "V_ASN1_OTHER" which is used when the class is not universal, in this
4052 case we have no idea what the actual type is so we just lump them all
4056 *) On VMS, stdout may very well lead to a file that is written to
4057 in a record-oriented fashion. That means that every write() will
4058 write a separate record, which will be read separately by the
4059 programs trying to read from it. This can be very confusing.
4061 The solution is to put a BIO filter in the way that will buffer
4062 text until a linefeed is reached, and then write everything a
4063 line at a time, so every record written will be an actual line,
4064 not chunks of lines and not (usually doesn't happen, but I've
4065 seen it once) several lines in one record. BIO_f_linebuffer() is
4068 Currently, it's a VMS-only method, because that's where it has
4069 been tested well enough.
4072 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4073 it can return incorrect results.
4074 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4075 but it was in 0.9.6-beta[12].)
4078 *) Disable the check for content being present when verifying detached
4079 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4080 include zero length content when signing messages.
4083 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4084 BIO_ctrl (for BIO pairs).
4087 *) Add DSO method for VMS.
4090 *) Bug fix: Montgomery multiplication could produce results with the
4094 *) Add RPM specification openssl.spec and modify it to build three
4095 packages. The default package contains applications, application
4096 documentation and run-time libraries. The devel package contains
4097 include files, static libraries and function documentation. The
4098 doc package contains the contents of the doc directory. The original
4099 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4102 *) Add a large number of documentation files for many SSL routines.
4103 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4105 *) Add a configuration entry for Sony News 4.
4106 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4108 *) Don't set the two most significant bits to one when generating a
4109 random number < q in the DSA library.
4112 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4113 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4114 the underlying transport is blocking) if a handshake took place.
4115 (The default behaviour is needed by applications such as s_client
4116 and s_server that use select() to determine when to use SSL_read;
4117 but for applications that know in advance when to expect data, it
4118 just makes things more complicated.)
4121 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4125 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4126 work better on such systems.
4127 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4129 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4130 Update PKCS12_parse() so it copies the friendlyName and the
4131 keyid to the certificates aux info.
4134 *) Fix bug in PKCS7_verify() which caused an infinite loop
4135 if there was more than one signature.
4136 [Sven Uszpelkat <su@celocom.de>]
4138 *) Major change in util/mkdef.pl to include extra information
4139 about each symbol, as well as presentig variables as well
4140 as functions. This change means that there's n more need
4141 to rebuild the .num files when some algorithms are excluded.
4144 *) Allow the verify time to be set by an application,
4145 rather than always using the current time.
4148 *) Phase 2 verify code reorganisation. The certificate
4149 verify code now looks up an issuer certificate by a
4150 number of criteria: subject name, authority key id
4151 and key usage. It also verifies self signed certificates
4152 by the same criteria. The main comparison function is
4153 X509_check_issued() which performs these checks.
4155 Lot of changes were necessary in order to support this
4156 without completely rewriting the lookup code.
4158 Authority and subject key identifier are now cached.
4160 The LHASH 'certs' is X509_STORE has now been replaced
4161 by a STACK_OF(X509_OBJECT). This is mainly because an
4162 LHASH can't store or retrieve multiple objects with
4163 the same hash value.
4165 As a result various functions (which were all internal
4166 use only) have changed to handle the new X509_STORE
4167 structure. This will break anything that messed round
4168 with X509_STORE internally.
4170 The functions X509_STORE_add_cert() now checks for an
4171 exact match, rather than just subject name.
4173 The X509_STORE API doesn't directly support the retrieval
4174 of multiple certificates matching a given criteria, however
4175 this can be worked round by performing a lookup first
4176 (which will fill the cache with candidate certificates)
4177 and then examining the cache for matches. This is probably
4178 the best we can do without throwing out X509_LOOKUP
4179 entirely (maybe later...).
4181 The X509_VERIFY_CTX structure has been enhanced considerably.
4183 All certificate lookup operations now go via a get_issuer()
4184 callback. Although this currently uses an X509_STORE it
4185 can be replaced by custom lookups. This is a simple way
4186 to bypass the X509_STORE hackery necessary to make this
4187 work and makes it possible to use more efficient techniques
4188 in future. A very simple version which uses a simple
4189 STACK for its trusted certificate store is also provided
4190 using X509_STORE_CTX_trusted_stack().
4192 The verify_cb() and verify() callbacks now have equivalents
4193 in the X509_STORE_CTX structure.
4195 X509_STORE_CTX also has a 'flags' field which can be used
4196 to customise the verify behaviour.
4199 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4200 excludes S/MIME capabilities.
4203 *) When a certificate request is read in keep a copy of the
4204 original encoding of the signed data and use it when outputing
4205 again. Signatures then use the original encoding rather than
4206 a decoded, encoded version which may cause problems if the
4207 request is improperly encoded.
4210 *) For consistency with other BIO_puts implementations, call
4211 buffer_write(b, ...) directly in buffer_puts instead of calling
4214 In BIO_puts, increment b->num_write as in BIO_write.
4215 [Peter.Sylvester@EdelWeb.fr]
4217 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4218 BN_zero, we may not return a BIGNUM with an array consisting of
4222 *) Avoid calling abort() from within the library when problems are
4223 detected, except if preprocessor symbols have been defined
4224 (such as REF_CHECK, BN_DEBUG etc.).
4227 *) New openssl application 'rsautl'. This utility can be
4228 used for low level RSA operations. DER public key
4229 BIO/fp routines also added.
4232 *) New Configure entry and patches for compiling on QNX 4.
4233 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4235 *) A demo state-machine implementation was sponsored by
4236 Nuron (http://www.nuron.com/) and is now available in
4237 demos/state_machine.
4240 *) New options added to the 'dgst' utility for signature
4241 generation and verification.
4244 *) Unrecognized PKCS#7 content types are now handled via a
4245 catch all ASN1_TYPE structure. This allows unsupported
4246 types to be stored as a "blob" and an application can
4247 encode and decode it manually.
4250 *) Fix various signed/unsigned issues to make a_strex.c
4252 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4254 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4255 length if passed a buffer. ASN1_INTEGER_to_BN failed
4256 if passed a NULL BN and its argument was negative.
4257 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4259 *) Modification to PKCS#7 encoding routines to output definite
4260 length encoding. Since currently the whole structures are in
4261 memory there's not real point in using indefinite length
4262 constructed encoding. However if OpenSSL is compiled with
4263 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4266 *) Added BIO_vprintf() and BIO_vsnprintf().
4269 *) Added more prefixes to parse for in the the strings written
4270 through a logging bio, to cover all the levels that are available
4271 through syslog. The prefixes are now:
4273 PANIC, EMERG, EMR => LOG_EMERG
4274 ALERT, ALR => LOG_ALERT
4275 CRIT, CRI => LOG_CRIT
4276 ERROR, ERR => LOG_ERR
4277 WARNING, WARN, WAR => LOG_WARNING
4278 NOTICE, NOTE, NOT => LOG_NOTICE
4279 INFO, INF => LOG_INFO
4280 DEBUG, DBG => LOG_DEBUG
4282 and as before, if none of those prefixes are present at the
4283 beginning of the string, LOG_ERR is chosen.
4285 On Win32, the LOG_* levels are mapped according to this:
4287 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4288 LOG_WARNING => EVENTLOG_WARNING_TYPE
4289 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4293 *) Made it possible to reconfigure with just the configuration
4294 argument "reconf" or "reconfigure". The command line arguments
4295 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4296 and are retrieved from there when reconfiguring.
4300 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4302 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4305 *) The obj_dat.pl script was messing up the sorting of object
4306 names. The reason was that it compared the quoted version
4307 of strings as a result "OCSP" > "OCSP Signing" because
4308 " > SPACE. Changed script to store unquoted versions of
4309 names and add quotes on output. It was also omitting some
4310 names from the lookup table if they were given a default
4311 value (that is if SN is missing it is given the same
4312 value as LN and vice versa), these are now added on the
4313 grounds that if an object has a name we should be able to
4314 look it up. Finally added warning output when duplicate
4315 short or long names are found.
4318 *) Changes needed for Tandem NSK.
4319 [Scott Uroff <scott@xypro.com>]
4321 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4322 RSA_padding_check_SSLv23(), special padding was never detected
4323 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4324 version rollback attacks was not effective.
4326 In s23_clnt.c, don't use special rollback-attack detection padding
4327 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4328 client; similarly, in s23_srvr.c, don't do the rollback check if
4329 SSL 2.0 is the only protocol enabled in the server.
4332 *) Make it possible to get hexdumps of unprintable data with 'openssl
4333 asn1parse'. By implication, the functions ASN1_parse_dump() and
4334 BIO_dump_indent() are added.
4337 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4338 these print out strings and name structures based on various
4339 flags including RFC2253 support and proper handling of
4340 multibyte characters. Added options to the 'x509' utility
4341 to allow the various flags to be set.
4344 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4345 Also change the functions X509_cmp_current_time() and
4346 X509_gmtime_adj() work with an ASN1_TIME structure,
4347 this will enable certificates using GeneralizedTime in validity
4348 dates to be checked.
4351 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4352 negative public key encodings) on by default,
4353 NO_NEG_PUBKEY_BUG can be set to disable it.
4356 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4357 content octets. An i2c_ASN1_OBJECT is unnecessary because
4358 the encoding can be trivially obtained from the structure.
4361 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4362 not read locks (CRYPTO_r_[un]lock).
4365 *) A first attempt at creating official support for shared
4366 libraries through configuration. I've kept it so the
4367 default is static libraries only, and the OpenSSL programs
4368 are always statically linked for now, but there are
4369 preparations for dynamic linking in place.
4370 This has been tested on Linux and Tru64.
4373 *) Randomness polling function for Win9x, as described in:
4374 Peter Gutmann, Software Generation of Practically Strong
4378 *) Fix so PRNG is seeded in req if using an already existing
4382 *) New options to smime application. -inform and -outform
4383 allow alternative formats for the S/MIME message including
4384 PEM and DER. The -content option allows the content to be
4385 specified separately. This should allow things like Netscape
4386 form signing output easier to verify.
4389 *) Fix the ASN1 encoding of tags using the 'long form'.
4392 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4393 STRING types. These convert content octets to and from the
4394 underlying type. The actual tag and length octets are
4395 already assumed to have been read in and checked. These
4396 are needed because all other string types have virtually
4397 identical handling apart from the tag. By having versions
4398 of the ASN1 functions that just operate on content octets
4399 IMPLICIT tagging can be handled properly. It also allows
4400 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4401 and ASN1_INTEGER are identical apart from the tag.
4404 *) Change the handling of OID objects as follows:
4406 - New object identifiers are inserted in objects.txt, following
4407 the syntax given in objects.README.
4408 - objects.pl is used to process obj_mac.num and create a new
4410 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4413 This is currently kind of a hack, and the perl code in objects.pl
4414 isn't very elegant, but it works as I intended. The simplest way
4415 to check that it worked correctly is to look in obj_dat.h and
4416 check the array nid_objs and make sure the objects haven't moved
4417 around (this is important!). Additions are OK, as well as
4418 consistent name changes.
4421 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4424 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4425 The given file adds to whatever has already been seeded into the
4426 random pool through the RANDFILE configuration file option or
4427 environment variable, or the default random state file.
4430 *) mkstack.pl now sorts each macro group into lexical order.
4431 Previously the output order depended on the order the files
4432 appeared in the directory, resulting in needless rewriting
4436 *) Patches to make OpenSSL compile under Win32 again. Mostly
4437 work arounds for the VC++ problem that it treats func() as
4438 func(void). Also stripped out the parts of mkdef.pl that
4439 added extra typesafe functions: these no longer exist.
4442 *) Reorganisation of the stack code. The macros are now all
4443 collected in safestack.h . Each macro is defined in terms of
4444 a "stack macro" of the form SKM_<name>(type, a, b). The
4445 DEBUG_SAFESTACK is now handled in terms of function casts,
4446 this has the advantage of retaining type safety without the
4447 use of additional functions. If DEBUG_SAFESTACK is not defined
4448 then the non typesafe macros are used instead. Also modified the
4449 mkstack.pl script to handle the new form. Needs testing to see
4450 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4451 the default if no major problems. Similar behaviour for ASN1_SET_OF
4452 and PKCS12_STACK_OF.
4455 *) When some versions of IIS use the 'NET' form of private key the
4456 key derivation algorithm is different. Normally MD5(password) is
4457 used as a 128 bit RC4 key. In the modified case
4458 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4459 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4460 as the old Netscape_RSA functions except they have an additional
4461 'sgckey' parameter which uses the modified algorithm. Also added
4462 an -sgckey command line option to the rsa utility. Thanks to
4463 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4464 algorithm to openssl-dev.
4467 *) The evp_local.h macros were using 'c.##kname' which resulted in
4468 invalid expansion on some systems (SCO 5.0.5 for example).
4469 Corrected to 'c.kname'.
4470 [Phillip Porch <root@theporch.com>]
4472 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4473 a STACK of email addresses from a certificate or request, these look
4474 in the subject name and the subject alternative name extensions and
4475 omit any duplicate addresses.
4478 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4479 This makes DSA verification about 2 % faster.
4482 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4483 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4484 plus overhead for 1024 bit moduli).
4485 This makes exponentiations about 0.5 % faster for 1024 bit
4486 exponents (as measured by "openssl speed rsa2048").
4489 *) Rename memory handling macros to avoid conflicts with other
4491 Malloc => OPENSSL_malloc
4492 Malloc_locked => OPENSSL_malloc_locked
4493 Realloc => OPENSSL_realloc
4494 Free => OPENSSL_free
4497 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4498 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4501 *) CygWin32 support.
4502 [John Jarvie <jjarvie@newsguy.com>]
4504 *) The type-safe stack code has been rejigged. It is now only compiled
4505 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4506 by default all type-specific stack functions are "#define"d back to
4507 standard stack functions. This results in more streamlined output
4508 but retains the type-safety checking possibilities of the original
4512 *) The STACK code has been cleaned up, and certain type declarations
4513 that didn't make a lot of sense have been brought in line. This has
4514 also involved a cleanup of sorts in safestack.h to more correctly
4515 map type-safe stack functions onto their plain stack counterparts.
4516 This work has also resulted in a variety of "const"ifications of
4517 lots of the code, especially "_cmp" operations which should normally
4518 be prototyped with "const" parameters anyway.
4521 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4522 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4523 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4524 where all of 'md' is used each time the PRNG is used, but 'state'
4525 is used only indexed by a cyclic counter. As entropy may not be
4526 well distributed from the beginning, 'md' is important as a
4527 chaining variable. However, the output function chains only half
4528 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4529 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4530 in all of 'state' being rewritten, with the new values depending
4531 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4534 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4535 the handshake is continued after ssl_verify_cert_chain();
4536 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4537 can lead to 'unexplainable' connection aborts later.
4538 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4540 *) Major EVP API cipher revision.
4541 Add hooks for extra EVP features. This allows various cipher
4542 parameters to be set in the EVP interface. Support added for variable
4543 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4544 setting of RC2 and RC5 parameters.
4546 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4549 Remove lots of duplicated code from the EVP library. For example *every*
4550 cipher init() function handles the 'iv' in the same way according to the
4551 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4552 for CFB and OFB modes they zero ctx->num.
4554 New functionality allows removal of S/MIME code RC2 hack.
4556 Most of the routines have the same form and so can be declared in terms
4559 By shifting this to the top level EVP_CipherInit() it can be removed from
4560 all individual ciphers. If the cipher wants to handle IVs or keys
4561 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4564 Change lots of functions like EVP_EncryptUpdate() to now return a
4565 value: although software versions of the algorithms cannot fail
4566 any installed hardware versions can.
4569 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4570 this option is set, tolerate broken clients that send the negotiated
4571 protocol version number instead of the requested protocol version
4575 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4576 i.e. non-zero for export ciphersuites, zero otherwise.
4577 Previous versions had this flag inverted, inconsistent with
4578 rsa_tmp_cb (..._TMP_RSA_CB).
4579 [Bodo Moeller; problem reported by Amit Chopra]
4581 *) Add missing DSA library text string. Work around for some IIS
4582 key files with invalid SEQUENCE encoding.
4585 *) Add a document (doc/standards.txt) that list all kinds of standards
4586 and so on that are implemented in OpenSSL.
4589 *) Enhance c_rehash script. Old version would mishandle certificates
4590 with the same subject name hash and wouldn't handle CRLs at all.
4591 Added -fingerprint option to crl utility, to support new c_rehash
4595 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4598 *) Fix for SSL server purpose checking. Server checking was
4599 rejecting certificates which had extended key usage present
4600 but no ssl client purpose.
4601 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4603 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4604 is a little unclear about how a blank password is handled.
4605 Since the password in encoded as a BMPString with terminating
4606 double NULL a zero length password would end up as just the
4607 double NULL. However no password at all is different and is
4608 handled differently in the PKCS#12 key generation code. NS
4609 treats a blank password as zero length. MSIE treats it as no
4610 password on export: but it will try both on import. We now do
4611 the same: PKCS12_parse() tries zero length and no password if
4612 the password is set to "" or NULL (NULL is now a valid password:
4613 it wasn't before) as does the pkcs12 application.
4616 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4617 perror when PEM_read_bio_X509_REQ fails, the error message must
4618 be obtained from the error queue.
4621 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4622 it in ERR_remove_state if appropriate, and change ERR_get_state
4623 accordingly to avoid race conditions (this is necessary because
4624 thread_hash is no longer constant once set).
4627 *) Bugfix for linux-elf makefile.one.
4630 *) RSA_get_default_method() will now cause a default
4631 RSA_METHOD to be chosen if one doesn't exist already.
4632 Previously this was only set during a call to RSA_new()
4633 or RSA_new_method(NULL) meaning it was possible for
4634 RSA_get_default_method() to return NULL.
4637 *) Added native name translation to the existing DSO code
4638 that will convert (if the flag to do so is set) filenames
4639 that are sufficiently small and have no path information
4640 into a canonical native form. Eg. "blah" converted to
4641 "libblah.so" or "blah.dll" etc.
4644 *) New function ERR_error_string_n(e, buf, len) which is like
4645 ERR_error_string(e, buf), but writes at most 'len' bytes
4646 including the 0 terminator. For ERR_error_string_n, 'buf'
4648 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4650 *) CONF library reworked to become more general. A new CONF
4651 configuration file reader "class" is implemented as well as a
4652 new functions (NCONF_*, for "New CONF") to handle it. The now
4653 old CONF_* functions are still there, but are reimplemented to
4654 work in terms of the new functions. Also, a set of functions
4655 to handle the internal storage of the configuration data is
4656 provided to make it easier to write new configuration file
4657 reader "classes" (I can definitely see something reading a
4658 configuration file in XML format, for example), called _CONF_*,
4659 or "the configuration storage API"...
4661 The new configuration file reading functions are:
4663 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4664 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4666 NCONF_default, NCONF_WIN32
4668 NCONF_dump_fp, NCONF_dump_bio
4670 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4671 NCONF_new creates a new CONF object. This works in the same way
4672 as other interfaces in OpenSSL, like the BIO interface.
4673 NCONF_dump_* dump the internal storage of the configuration file,
4674 which is useful for debugging. All other functions take the same
4675 arguments as the old CONF_* functions wth the exception of the
4676 first that must be a `CONF *' instead of a `LHASH *'.
4678 To make it easer to use the new classes with the old CONF_* functions,
4679 the function CONF_set_default_method is provided.
4682 *) Add '-tls1' option to 'openssl ciphers', which was already
4683 mentioned in the documentation but had not been implemented.
4684 (This option is not yet really useful because even the additional
4685 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4688 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4689 OpenSSL-based applications) load shared libraries and bind to
4690 them in a portable way.
4691 [Geoff Thorpe, with contributions from Richard Levitte]
4693 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4695 *) Make sure _lrotl and _lrotr are only used with MSVC.
4697 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4698 (the default implementation of RAND_status).
4700 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4701 to '-clrext' (= clear extensions), as intended and documented.
4702 [Bodo Moeller; inconsistency pointed out by Michael Attili
4705 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4706 was larger than the MD block size.
4707 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4709 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4710 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4711 using the passed key: if the passed key was a private key the result
4712 of X509_print(), for example, would be to print out all the private key
4716 *) des_quad_cksum() byte order bug fix.
4717 [Ulf Möller, using the problem description in krb4-0.9.7, where
4718 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4720 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4722 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4724 *) For easily testing in shell scripts whether some command
4725 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4726 returns with exit code 0 iff no command of the given name is available.
4727 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4728 the output goes to stdout and nothing is printed to stderr.
4729 Additional arguments are always ignored.
4731 Since for each cipher there is a command of the same name,
4732 the 'no-cipher' compilation switches can be tested this way.
4734 ('openssl no-XXX' is not able to detect pseudo-commands such
4735 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4738 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4741 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4742 is set; it will be thrown away anyway because each handshake creates
4744 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4745 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4746 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4747 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4750 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4751 'Q' and 'R' lose their special meanings (quit/renegotiate).
4752 This is part of what -quiet does; unlike -quiet, -ign_eof
4753 does not suppress any output.
4756 *) Add compatibility options to the purpose and trust code. The
4757 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4758 accepts a certificate or CA, this was the previous behaviour,
4759 with all the associated security issues.
4761 X509_TRUST_COMPAT is the old trust behaviour: only and
4762 automatically trust self signed roots in certificate store. A
4763 new trust setting X509_TRUST_DEFAULT is used to specify that
4764 a purpose has no associated trust setting and it should instead
4765 use the value in the default purpose.
4768 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4769 and fix a memory leak.
4772 *) In util/mkerr.pl (which implements 'make errors'), preserve
4773 reason strings from the previous version of the .c file, as
4774 the default to have only downcase letters (and digits) in
4775 automatically generated reasons codes is not always appropriate.
4778 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4779 using strerror. Previously, ERR_reason_error_string() returned
4780 library names as reason strings for SYSerr; but SYSerr is a special
4781 case where small numbers are errno values, not library numbers.
4784 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4785 converts DSA parameters into DH parameters. (When creating parameters,
4786 DSA_generate_parameters is used.)
4789 *) Include 'length' (recommended exponent length) in C code generated
4790 by 'openssl dhparam -C'.
4793 *) The second argument to set_label in perlasm was already being used
4794 so couldn't be used as a "file scope" flag. Moved to third argument
4798 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4799 instead of RAND_bytes for encryption IVs and salts.
4802 *) Include RAND_status() into RAND_METHOD instead of implementing
4803 it only for md_rand.c Otherwise replacing the PRNG by calling
4804 RAND_set_rand_method would be impossible.
4807 *) Don't let DSA_generate_key() enter an infinite loop if the random
4808 number generation fails.
4811 *) New 'rand' application for creating pseudo-random output.
4814 *) Added configuration support for Linux/IA64
4815 [Rolf Haberrecker <rolf@suse.de>]
4817 *) Assembler module support for Mingw32.
4820 *) Shared library support for HPUX (in shlib/).
4821 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4823 *) Shared library support for Solaris gcc.
4824 [Lutz Behnke <behnke@trustcenter.de>]
4826 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4828 *) PKCS7_encrypt() was adding text MIME headers twice because they
4829 were added manually and by SMIME_crlf_copy().
4832 *) In bntest.c don't call BN_rand with zero bits argument.
4833 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4835 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4836 case was implemented. This caused BN_div_recp() to fail occasionally.
4839 *) Add an optional second argument to the set_label() in the perl
4840 assembly language builder. If this argument exists and is set
4841 to 1 it signals that the assembler should use a symbol whose
4842 scope is the entire file, not just the current function. This
4843 is needed with MASM which uses the format label:: for this scope.
4844 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4846 *) Change the ASN1 types so they are typedefs by default. Before
4847 almost all types were #define'd to ASN1_STRING which was causing
4848 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4852 *) Change names of new functions to the new get1/get0 naming
4853 convention: After 'get1', the caller owns a reference count
4854 and has to call ..._free; 'get0' returns a pointer to some
4855 data structure without incrementing reference counters.
4856 (Some of the existing 'get' functions increment a reference
4857 counter, some don't.)
4858 Similarly, 'set1' and 'add1' functions increase reference
4859 counters or duplicate objects.
4862 *) Allow for the possibility of temp RSA key generation failure:
4863 the code used to assume it always worked and crashed on failure.
4866 *) Fix potential buffer overrun problem in BIO_printf().
4867 [Ulf Möller, using public domain code by Patrick Powell; problem
4868 pointed out by David Sacerdote <das33@cornell.edu>]
4870 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4871 RAND_egd() and RAND_status(). In the command line application,
4872 the EGD socket can be specified like a seed file using RANDFILE
4876 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4877 Some CAs (e.g. Verisign) distribute certificates in this form.
4880 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4881 list to exclude them. This means that no special compilation option
4882 is needed to use anonymous DH: it just needs to be included in the
4886 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4887 EVP_MD_type. The old functionality is available in a new macro called
4888 EVP_MD_md(). Change code that uses it and update docs.
4891 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4892 where the 'void *' argument is replaced by a function pointer argument.
4893 Previously 'void *' was abused to point to functions, which works on
4894 many platforms, but is not correct. As these functions are usually
4895 called by macros defined in OpenSSL header files, most source code
4896 should work without changes.
4899 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4900 sections with information on -D... compiler switches used for
4901 compiling the library so that applications can see them. To enable
4902 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4903 must be defined. E.g.,
4904 #define OPENSSL_ALGORITHM_DEFINES
4905 #include <openssl/opensslconf.h>
4906 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4907 [Richard Levitte, Ulf and Bodo Möller]
4909 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4913 *) Change the 'other' type in certificate aux info to a STACK_OF
4914 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4915 the required ASN1 format: arbitrary types determined by an OID.
4918 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4919 argument to 'req'. This is not because the function is newer or
4920 better than others it just uses the work 'NEW' in the certificate
4921 request header lines. Some software needs this.
4924 *) Reorganise password command line arguments: now passwords can be
4925 obtained from various sources. Delete the PEM_cb function and make
4926 it the default behaviour: i.e. if the callback is NULL and the
4927 usrdata argument is not NULL interpret it as a null terminated pass
4928 phrase. If usrdata and the callback are NULL then the pass phrase
4929 is prompted for as usual.
4932 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4933 the support is automatically enabled. The resulting binaries will
4934 autodetect the card and use it if present.
4935 [Ben Laurie and Compaq Inc.]
4937 *) Work around for Netscape hang bug. This sends certificate request
4938 and server done in one record. Since this is perfectly legal in the
4939 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4940 the bugs/SSLv3 entry for more info.
4943 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4946 *) Add -rand argument to smime and pkcs12 applications and read/write
4950 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4953 *) Add command line password options to the remaining applications.
4956 *) Bug fix for BN_div_recp() for numerators with an even number of
4960 *) More tests in bntest.c, and changed test_bn output.
4963 *) ./config recognizes MacOS X now.
4966 *) Bug fix for BN_div() when the first words of num and divsor are
4967 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4970 *) Add support for various broken PKCS#8 formats, and command line
4971 options to produce them.
4974 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4975 get temporary BIGNUMs from a BN_CTX.
4978 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4982 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4983 include a #define from the old name to the new. The original intent
4984 was that statically linked binaries could for example just call
4985 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4986 link with digests. This never worked becayse SSLeay_add_all_digests()
4987 and SSLeay_add_all_ciphers() were in the same source file so calling
4988 one would link with the other. They are now in separate source files.
4991 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4994 *) Use a less unusual form of the Miller-Rabin primality test (it used
4995 a binary algorithm for exponentiation integrated into the Miller-Rabin
4996 loop, our standard modexp algorithms are faster).
4999 *) Support for the EBCDIC character set completed.
5000 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5002 *) Source code cleanups: use const where appropriate, eliminate casts,
5003 use void * instead of char * in lhash.
5006 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5007 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5008 this the server could overwrite ephemeral keys that the client
5012 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5013 using 50 iterations of the Rabin-Miller test.
5015 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5016 iterations of the Rabin-Miller test as required by the appendix
5017 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5018 As BN_is_prime_fasttest includes trial division, DSA parameter
5019 generation becomes much faster.
5021 This implies a change for the callback functions in DSA_is_prime
5022 and DSA_generate_parameters: The callback function is called once
5023 for each positive witness in the Rabin-Miller test, not just
5024 occasionally in the inner loop; and the parameters to the
5025 callback function now provide an iteration count for the outer
5026 loop rather than for the current invocation of the inner loop.
5027 DSA_generate_parameters additionally can call the callback
5028 function with an 'iteration count' of -1, meaning that a
5029 candidate has passed the trial division test (when q is generated
5030 from an application-provided seed, trial division is skipped).
5033 *) New function BN_is_prime_fasttest that optionally does trial
5034 division before starting the Rabin-Miller test and has
5035 an additional BN_CTX * argument (whereas BN_is_prime always
5036 has to allocate at least one BN_CTX).
5037 'callback(1, -1, cb_arg)' is called when a number has passed the
5038 trial division stage.
5041 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5045 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5048 *) New function BN_pseudo_rand().
5051 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5052 bignum version of BN_from_montgomery() with the working code from
5053 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5057 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5058 made it impossible to use the same SSL_SESSION data structure in
5059 SSL2 clients in multiple threads.
5062 *) The return value of RAND_load_file() no longer counts bytes obtained
5063 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5064 to seed the PRNG (previously an explicit byte count was required).
5065 [Ulf Möller, Bodo Möller]
5067 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5068 used (char *) instead of (void *) and had casts all over the place.
5071 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5074 *) Retain source code compatibility for BN_prime_checks macro:
5075 BN_is_prime(..., BN_prime_checks, ...) now uses
5076 BN_prime_checks_for_size to determine the appropriate number of
5077 Rabin-Miller iterations.
5080 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5081 DH_CHECK_P_NOT_SAFE_PRIME.
5082 (Check if this is true? OpenPGP calls them "strong".)
5085 *) Merge the functionality of "dh" and "gendh" programs into a new program
5086 "dhparam". The old programs are retained for now but will handle DH keys
5087 (instead of parameters) in future.
5090 *) Make the ciphers, s_server and s_client programs check the return values
5091 when a new cipher list is set.
5094 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5095 ciphers. Before when the 56bit ciphers were enabled the sorting was
5098 The syntax for the cipher sorting has been extended to support sorting by
5099 cipher-strength (using the strength_bits hard coded in the tables).
5100 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5102 Fix a bug in the cipher-command parser: when supplying a cipher command
5103 string with an "undefined" symbol (neither command nor alphanumeric
5104 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5105 an error is flagged.
5107 Due to the strength-sorting extension, the code of the
5108 ssl_create_cipher_list() function was completely rearranged. I hope that
5109 the readability was also increased :-)
5110 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5112 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5113 for the first serial number and places 2 in the serial number file. This
5114 avoids problems when the root CA is created with serial number zero and
5115 the first user certificate has the same issuer name and serial number
5119 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5120 the new code. Add documentation for this stuff.
5123 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5124 X509_*() to X509at_*() on the grounds that they don't handle X509
5125 structures and behave in an analagous way to the X509v3 functions:
5126 they shouldn't be called directly but wrapper functions should be used
5129 So we also now have some wrapper functions that call the X509at functions
5130 when passed certificate requests. (TO DO: similar things can be done with
5131 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5132 things. Some of these need some d2i or i2d and print functionality
5133 because they handle more complex structures.)
5136 *) Add missing #ifndefs that caused missing symbols when building libssl
5137 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5138 NO_RSA in ssl/s2*.c.
5139 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5141 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5142 has a return value which indicates the quality of the random data
5143 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5144 error queue. New function RAND_pseudo_bytes() generates output that is
5145 guaranteed to be unique but not unpredictable. RAND_add is like
5146 RAND_seed, but takes an extra argument for an entropy estimate
5147 (RAND_seed always assumes full entropy).
5150 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5151 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5152 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5153 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5154 false-positive rate of at most 2^-80 for random input.
5157 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5160 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5161 in the 0.9.5 release), this returns the chain
5162 from an X509_CTX structure with a dup of the stack and all
5163 the X509 reference counts upped: so the stack will exist
5164 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5167 Also make SSL_SESSION_print() print out the verify return
5171 *) Add manpage for the pkcs12 command. Also change the default
5172 behaviour so MAC iteration counts are used unless the new
5173 -nomaciter option is used. This improves file security and
5174 only older versions of MSIE (4.0 for example) need it.
5177 *) Honor the no-xxx Configure options when creating .DEF files.
5180 *) Add PKCS#10 attributes to field table: challengePassword,
5181 unstructuredName and unstructuredAddress. These are taken from
5182 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5183 international characters are used.
5185 More changes to X509_ATTRIBUTE code: allow the setting of types
5186 based on strings. Remove the 'loc' parameter when adding
5187 attributes because these will be a SET OF encoding which is sorted
5191 *) Initial changes to the 'req' utility to allow request generation
5192 automation. This will allow an application to just generate a template
5193 file containing all the field values and have req construct the
5196 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5197 used all over the place including certificate requests and PKCS#7
5198 structures. They are currently handled manually where necessary with
5199 some primitive wrappers for PKCS#7. The new functions behave in a
5200 manner analogous to the X509 extension functions: they allow
5201 attributes to be looked up by NID and added.
5203 Later something similar to the X509V3 code would be desirable to
5204 automatically handle the encoding, decoding and printing of the
5205 more complex types. The string types like challengePassword can
5206 be handled by the string table functions.
5208 Also modified the multi byte string table handling. Now there is
5209 a 'global mask' which masks out certain types. The table itself
5210 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5211 is useful when for example there is only one permissible type
5212 (as in countryName) and using the mask might result in no valid
5216 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5217 SSL_get_peer_finished to allow applications to obtain the latest
5218 Finished messages sent to the peer or expected from the peer,
5219 respectively. (SSL_get_peer_finished is usually the Finished message
5220 actually received from the peer, otherwise the protocol will be aborted.)
5222 As the Finished message are message digests of the complete handshake
5223 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5224 be used for external authentication procedures when the authentication
5225 provided by SSL/TLS is not desired or is not enough.
5228 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5229 the host supports BWX extension and if Compaq C is present on the
5230 $PATH. Just exploiting of the BWX extension results in 20-30%
5231 performance kick for some algorithms, e.g. DES and RC4 to mention
5232 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5236 *) Add support for MS "fast SGC". This is arguably a violation of the
5237 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5238 weak crypto and after checking the certificate is SGC a second one
5239 with strong crypto. MS SGC stops the first handshake after receiving
5240 the server certificate message and sends a second client hello. Since
5241 a server will typically do all the time consuming operations before
5242 expecting any further messages from the client (server key exchange
5243 is the most expensive) there is little difference between the two.
5245 To get OpenSSL to support MS SGC we have to permit a second client
5246 hello message after we have sent server done. In addition we have to
5247 reset the MAC if we do get this second client hello.
5250 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5251 if a DER encoded private key is RSA or DSA traditional format. Changed
5252 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5253 format DER encoded private key. Newer code should use PKCS#8 format which
5254 has the key type encoded in the ASN1 structure. Added DER private key
5255 support to pkcs8 application.
5258 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5259 ciphersuites has been selected (as required by the SSL 3/TLS 1
5260 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5261 is set, we interpret this as a request to violate the specification
5262 (the worst that can happen is a handshake failure, and 'correct'
5263 behaviour would result in a handshake failure anyway).
5266 *) In SSL_CTX_add_session, take into account that there might be multiple
5267 SSL_SESSION structures with the same session ID (e.g. when two threads
5268 concurrently obtain them from an external cache).
5269 The internal cache can handle only one SSL_SESSION with a given ID,
5270 so if there's a conflict, we now throw out the old one to achieve
5274 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5275 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5276 some routines that use cipher OIDs: some ciphers do not have OIDs
5277 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5281 *) Simplify the trust setting structure and code. Now we just have
5282 two sequences of OIDs for trusted and rejected settings. These will
5283 typically have values the same as the extended key usage extension
5284 and any application specific purposes.
5286 The trust checking code now has a default behaviour: it will just
5287 check for an object with the same NID as the passed id. Functions can
5288 be provided to override either the default behaviour or the behaviour
5289 for a given id. SSL client, server and email already have functions
5290 in place for compatibility: they check the NID and also return "trusted"
5291 if the certificate is self signed.
5294 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5295 traditional format into an EVP_PKEY structure.
5298 *) Add a password callback function PEM_cb() which either prompts for
5299 a password if usr_data is NULL or otherwise assumes it is a null
5300 terminated password. Allow passwords to be passed on command line
5301 environment or config files in a few more utilities.
5304 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5305 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5306 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5307 Update documentation.
5310 *) Support for ASN1 "NULL" type. This could be handled before by using
5311 ASN1_TYPE but there wasn't any function that would try to read a NULL
5312 and produce an error if it couldn't. For compatibility we also have
5313 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5314 don't allocate anything because they don't need to.
5317 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5319 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5321 *) Rebuild of the memory allocation routines used by OpenSSL code and
5322 possibly others as well. The purpose is to make an interface that
5323 provide hooks so anyone can build a separate set of allocation and
5324 deallocation routines to be used by OpenSSL, for example memory
5325 pool implementations, or something else, which was previously hard
5326 since Malloc(), Realloc() and Free() were defined as macros having
5327 the values malloc, realloc and free, respectively (except for Win32
5328 compilations). The same is provided for memory debugging code.
5329 OpenSSL already comes with functionality to find memory leaks, but
5330 this gives people a chance to debug other memory problems.
5332 With these changes, a new set of functions and macros have appeared:
5334 CRYPTO_set_mem_debug_functions() [F]
5335 CRYPTO_get_mem_debug_functions() [F]
5336 CRYPTO_dbg_set_options() [F]
5337 CRYPTO_dbg_get_options() [F]
5338 CRYPTO_malloc_debug_init() [M]
5340 The memory debug functions are NULL by default, unless the library
5341 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5342 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5343 gives the standard debugging functions that come with OpenSSL) or
5344 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5345 provided by the library user) must be used. When the standard
5346 debugging functions are used, CRYPTO_dbg_set_options can be used to
5347 request additional information:
5348 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5349 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5351 Also, things like CRYPTO_set_mem_functions will always give the
5352 expected result (the new set of functions is used for allocation
5353 and deallocation) at all times, regardless of platform and compiler
5356 To finish it up, some functions that were never use in any other
5357 way than through macros have a new API and new semantic:
5360 CRYPTO_dbg_realloc()
5363 All macros of value have retained their old syntax.
5364 [Richard Levitte and Bodo Moeller]
5366 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5367 ordering of SMIMECapabilities wasn't in "strength order" and there
5368 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5372 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5373 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5374 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5376 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5377 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5378 functionality to handle multipart/signed properly) and a utility
5379 called 'smime' to call all this stuff. This is based on code I
5380 originally wrote for Celo who have kindly allowed it to be
5381 included in OpenSSL.
5384 *) Add variants des_set_key_checked and des_set_key_unchecked of
5385 des_set_key (aka des_key_sched). Global variable des_check_key
5386 decides which of these is called by des_set_key; this way
5387 des_check_key behaves as it always did, but applications and
5388 the library itself, which was buggy for des_check_key == 1,
5389 have a cleaner way to pick the version they need.
5392 *) New function PKCS12_newpass() which changes the password of a
5396 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5397 dynamic mix. In both cases the ids can be used as an index into the
5398 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5399 functions so they accept a list of the field values and the
5400 application doesn't need to directly manipulate the X509_TRUST
5404 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5408 *) Modify the way the V3 extension code looks up extensions. This now
5409 works in a similar way to the object code: we have some "standard"
5410 extensions in a static table which is searched with OBJ_bsearch()
5411 and the application can add dynamic ones if needed. The file
5412 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5413 updated whenever a new extension is added to the core code and kept
5414 in ext_nid order. There is a simple program 'tabtest.c' which checks
5415 this. New extensions are not added too often so this file can readily
5416 be maintained manually.
5418 There are two big advantages in doing things this way. The extensions
5419 can be looked up immediately and no longer need to be "added" using
5420 X509V3_add_standard_extensions(): this function now does nothing.
5421 [Side note: I get *lots* of email saying the extension code doesn't
5422 work because people forget to call this function]
5423 Also no dynamic allocation is done unless new extensions are added:
5424 so if we don't add custom extensions there is no need to call
5425 X509V3_EXT_cleanup().
5428 *) Modify enc utility's salting as follows: make salting the default. Add a
5429 magic header, so unsalted files fail gracefully instead of just decrypting
5430 to garbage. This is because not salting is a big security hole, so people
5431 should be discouraged from doing it.
5434 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5435 digest to be passed on the command line but it only used this
5436 parameter when signing a certificate. Modified so all relevant
5437 operations are affected by the digest parameter including the
5438 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5439 DSA key was used because it didn't fix the digest.
5442 *) Initial certificate chain verify code. Currently tests the untrusted
5443 certificates for consistency with the verify purpose (which is set
5444 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5446 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5447 this is because it will reject chains with invalid extensions whereas
5448 every previous version of OpenSSL and SSLeay made no checks at all.
5450 Trust code: checks the root CA for the relevant trust settings. Trust
5451 settings have an initial value consistent with the verify purpose: e.g.
5452 if the verify purpose is for SSL client use it expects the CA to be
5453 trusted for SSL client use. However the default value can be changed to
5454 permit custom trust settings: one example of this would be to only trust
5455 certificates from a specific "secure" set of CAs.
5457 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5458 which should be used for version portability: especially since the
5459 verify structure is likely to change more often now.
5461 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5462 to set them. If not set then assume SSL clients will verify SSL servers
5465 Two new options to the verify program: -untrusted allows a set of
5466 untrusted certificates to be passed in and -purpose which sets the
5467 intended purpose of the certificate. If a purpose is set then the
5468 new chain verify code is used to check extension consistency.
5471 *) Support for the authority information access extension.
5474 *) Modify RSA and DSA PEM read routines to transparently handle
5475 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5476 public keys in a format compatible with certificate
5477 SubjectPublicKeyInfo structures. Unfortunately there were already
5478 functions called *_PublicKey_* which used various odd formats so
5479 these are retained for compatibility: however the DSA variants were
5480 never in a public release so they have been deleted. Changed dsa/rsa
5481 utilities to handle the new format: note no releases ever handled public
5482 keys so we should be OK.
5484 The primary motivation for this change is to avoid the same fiasco
5485 that dogs private keys: there are several incompatible private key
5486 formats some of which are standard and some OpenSSL specific and
5487 require various evil hacks to allow partial transparent handling and
5488 even then it doesn't work with DER formats. Given the option anything
5489 other than PKCS#8 should be dumped: but the other formats have to
5490 stay in the name of compatibility.
5492 With public keys and the benefit of hindsight one standard format
5493 is used which works with EVP_PKEY, RSA or DSA structures: though
5494 it clearly returns an error if you try to read the wrong kind of key.
5496 Added a -pubkey option to the 'x509' utility to output the public key.
5497 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5498 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5499 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5500 that do the same as the EVP_PKEY_assign_*() except they up the
5501 reference count of the added key (they don't "swallow" the
5505 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5506 CRLs would fail if the file contained no certificates or no CRLs:
5507 added a new function to read in both types and return the number
5508 read: this means that if none are read it will be an error. The
5509 DER versions of the certificate and CRL reader would always fail
5510 because it isn't possible to mix certificates and CRLs in DER format
5511 without choking one or the other routine. Changed this to just read
5512 a certificate: this is the best we can do. Also modified the code
5513 in apps/verify.c to take notice of return codes: it was previously
5514 attempting to read in certificates from NULL pointers and ignoring
5515 any errors: this is one reason why the cert and CRL reader seemed
5516 to work. It doesn't check return codes from the default certificate
5517 routines: these may well fail if the certificates aren't installed.
5520 *) Code to support otherName option in GeneralName.
5523 *) First update to verify code. Change the verify utility
5524 so it warns if it is passed a self signed certificate:
5525 for consistency with the normal behaviour. X509_verify
5526 has been modified to it will now verify a self signed
5527 certificate if *exactly* the same certificate appears
5528 in the store: it was previously impossible to trust a
5529 single self signed certificate. This means that:
5530 openssl verify ss.pem
5531 now gives a warning about a self signed certificate but
5532 openssl verify -CAfile ss.pem ss.pem
5536 *) For servers, store verify_result in SSL_SESSION data structure
5537 (and add it to external session representation).
5538 This is needed when client certificate verifications fails,
5539 but an application-provided verification callback (set by
5540 SSL_CTX_set_cert_verify_callback) allows accepting the session
5541 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5542 but returns 1): When the session is reused, we have to set
5543 ssl->verify_result to the appropriate error code to avoid
5545 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5547 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5548 case in PKCS7_dataInit() where the signed PKCS7 structure
5549 didn't contain any existing data because it was being created.
5550 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5552 *) Add a salt to the key derivation routines in enc.c. This
5553 forms the first 8 bytes of the encrypted file. Also add a
5554 -S option to allow a salt to be input on the command line.
5557 *) New function X509_cmp(). Oddly enough there wasn't a function
5558 to compare two certificates. We do this by working out the SHA1
5559 hash and comparing that. X509_cmp() will be needed by the trust
5563 *) SSL_get1_session() is like SSL_get_session(), but increments
5564 the reference count in the SSL_SESSION returned.
5565 [Geoff Thorpe <geoff@eu.c2.net>]
5567 *) Fix for 'req': it was adding a null to request attributes.
5568 Also change the X509_LOOKUP and X509_INFO code to handle
5569 certificate auxiliary information.
5572 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5576 *) Add the possibility to add extra information to the memory leak
5577 detecting output, to form tracebacks, showing from where each
5578 allocation was originated: CRYPTO_push_info("constant string") adds
5579 the string plus current file name and line number to a per-thread
5580 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5581 is like calling CYRPTO_pop_info() until the stack is empty.
5582 Also updated memory leak detection code to be multi-thread-safe.
5585 *) Add options -text and -noout to pkcs7 utility and delete the
5586 encryption options which never did anything. Update docs.
5589 *) Add options to some of the utilities to allow the pass phrase
5590 to be included on either the command line (not recommended on
5591 OSes like Unix) or read from the environment. Update the
5592 manpages and fix a few bugs.
5595 *) Add a few manpages for some of the openssl commands.
5598 *) Fix the -revoke option in ca. It was freeing up memory twice,
5599 leaking and not finding already revoked certificates.
5602 *) Extensive changes to support certificate auxiliary information.
5603 This involves the use of X509_CERT_AUX structure and X509_AUX
5604 functions. An X509_AUX function such as PEM_read_X509_AUX()
5605 can still read in a certificate file in the usual way but it
5606 will also read in any additional "auxiliary information". By
5607 doing things this way a fair degree of compatibility can be
5608 retained: existing certificates can have this information added
5609 using the new 'x509' options.
5611 Current auxiliary information includes an "alias" and some trust
5612 settings. The trust settings will ultimately be used in enhanced
5613 certificate chain verification routines: currently a certificate
5614 can only be trusted if it is self signed and then it is trusted
5618 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5619 The problem was that one of the replacement routines had not been working
5620 since SSLeay releases. For now the offending routine has been replaced
5621 with non-optimised assembler. Even so, this now gives around 95%
5622 performance improvement for 1024 bit RSA signs.
5625 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5626 handling. Most clients have the effective key size in bits equal to
5627 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5628 A few however don't do this and instead use the size of the decrypted key
5629 to determine the RC2 key length and the AlgorithmIdentifier to determine
5630 the effective key length. In this case the effective key length can still
5631 be 40 bits but the key length can be 168 bits for example. This is fixed
5632 by manually forcing an RC2 key into the EVP_PKEY structure because the
5633 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5634 the key length and effective key length are equal.
5637 *) Add a bunch of functions that should simplify the creation of
5638 X509_NAME structures. Now you should be able to do:
5639 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5640 and have it automatically work out the correct field type and fill in
5641 the structures. The more adventurous can try:
5642 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5643 and it will (hopefully) work out the correct multibyte encoding.
5646 *) Change the 'req' utility to use the new field handling and multibyte
5647 copy routines. Before the DN field creation was handled in an ad hoc
5648 way in req, ca, and x509 which was rather broken and didn't support
5649 BMPStrings or UTF8Strings. Since some software doesn't implement
5650 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5651 using the dirstring_type option. See the new comment in the default
5652 openssl.cnf for more info.
5655 *) Make crypto/rand/md_rand.c more robust:
5656 - Assure unique random numbers after fork().
5657 - Make sure that concurrent threads access the global counter and
5658 md serializably so that we never lose entropy in them
5659 or use exactly the same state in multiple threads.
5660 Access to the large state is not always serializable because
5661 the additional locking could be a performance killer, and
5662 md should be large enough anyway.
5665 *) New file apps/app_rand.c with commonly needed functionality
5666 for handling the random seed file.
5668 Use the random seed file in some applications that previously did not:
5670 dsaparam -genkey (which also ignored its '-rand' option),
5673 x509 (when signing).
5674 Except on systems with /dev/urandom, it is crucial to have a random
5675 seed file at least for key creation, DSA signing, and for DH exchanges;
5676 for RSA signatures we could do without one.
5678 gendh and gendsa (unlike genrsa) used to read only the first byte
5679 of each file listed in the '-rand' option. The function as previously
5680 found in genrsa is now in app_rand.c and is used by all programs
5681 that support '-rand'.
5684 *) In RAND_write_file, use mode 0600 for creating files;
5685 don't just chmod when it may be too late.
5688 *) Report an error from X509_STORE_load_locations
5689 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5692 *) New function ASN1_mbstring_copy() this copies a string in either
5693 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5694 into an ASN1_STRING type. A mask of permissible types is passed
5695 and it chooses the "minimal" type to use or an error if not type
5699 *) Add function equivalents to the various macros in asn1.h. The old
5700 macros are retained with an M_ prefix. Code inside the library can
5701 use the M_ macros. External code (including the openssl utility)
5702 should *NOT* in order to be "shared library friendly".
5705 *) Add various functions that can check a certificate's extensions
5706 to see if it usable for various purposes such as SSL client,
5707 server or S/MIME and CAs of these types. This is currently
5708 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5709 verification. Also added a -purpose flag to x509 utility to
5710 print out all the purposes.
5713 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5717 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5718 for, obtain and decode and extension and obtain its critical flag.
5719 This allows all the necessary extension code to be handled in a
5720 single function call.
5723 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5724 platforms. See crypto/rc4/rc4_enc.c for further details.
5727 *) New -noout option to asn1parse. This causes no output to be produced
5728 its main use is when combined with -strparse and -out to extract data
5729 from a file (which may not be in ASN.1 format).
5732 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5733 when producing the local key id.
5734 [Richard Levitte <levitte@stacken.kth.se>]
5736 *) New option -dhparam in s_server. This allows a DH parameter file to be
5737 stated explicitly. If it is not stated then it tries the first server
5738 certificate file. The previous behaviour hard coded the filename
5742 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5743 a public key to be input or output. For example:
5744 openssl rsa -in key.pem -pubout -out pubkey.pem
5745 Also added necessary DSA public key functions to handle this.
5748 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5749 in the message. This was handled by allowing
5750 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5751 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5753 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5754 to the end of the strings whereas this didn't. This would cause problems
5755 if strings read with d2i_ASN1_bytes() were later modified.
5756 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5758 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5759 data and it contains EOF it will end up returning an error. This is
5760 caused by input 46 bytes long. The cause is due to the way base64
5761 BIOs find the start of base64 encoded data. They do this by trying a
5762 trial decode on each line until they find one that works. When they
5763 do a flag is set and it starts again knowing it can pass all the
5764 data directly through the decoder. Unfortunately it doesn't reset
5765 the context it uses. This means that if EOF is reached an attempt
5766 is made to pass two EOFs through the context and this causes the
5767 resulting error. This can also cause other problems as well. As is
5768 usual with these problems it takes *ages* to find and the fix is
5769 trivial: move one line.
5770 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5772 *) Ugly workaround to get s_client and s_server working under Windows. The
5773 old code wouldn't work because it needed to select() on sockets and the
5774 tty (for keypresses and to see if data could be written). Win32 only
5775 supports select() on sockets so we select() with a 1s timeout on the
5776 sockets and then see if any characters are waiting to be read, if none
5777 are present then we retry, we also assume we can always write data to
5778 the tty. This isn't nice because the code then blocks until we've
5779 received a complete line of data and it is effectively polling the
5780 keyboard at 1s intervals: however it's quite a bit better than not
5781 working at all :-) A dedicated Windows application might handle this
5782 with an event loop for example.
5785 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5786 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5787 will be called when RSA_sign() and RSA_verify() are used. This is useful
5788 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5789 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5790 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5791 This necessitated the support of an extra signature type NID_md5_sha1
5792 for SSL signatures and modifications to the SSL library to use it instead
5793 of calling RSA_public_decrypt() and RSA_private_encrypt().
5796 *) Add new -verify -CAfile and -CApath options to the crl program, these
5797 will lookup a CRL issuers certificate and verify the signature in a
5798 similar way to the verify program. Tidy up the crl program so it
5799 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5800 less strict. It will now permit CRL extensions even if it is not
5801 a V2 CRL: this will allow it to tolerate some broken CRLs.
5804 *) Initialize all non-automatic variables each time one of the openssl
5805 sub-programs is started (this is necessary as they may be started
5806 multiple times from the "OpenSSL>" prompt).
5807 [Lennart Bang, Bodo Moeller]
5809 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5810 removing all other RSA functionality (this is what NO_RSA does). This
5811 is so (for example) those in the US can disable those operations covered
5812 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5816 *) Non-copying interface to BIO pairs.
5817 (still largely untested)
5820 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5821 ASCII string. This was handled independently in various places before.
5824 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5825 UTF8 strings a character at a time.
5828 *) Use client_version from client hello to select the protocol
5829 (s23_srvr.c) and for RSA client key exchange verification
5830 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5833 *) Add various utility functions to handle SPKACs, these were previously
5834 handled by poking round in the structure internals. Added new function
5835 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5836 print, verify and generate SPKACs. Based on an original idea from
5837 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5840 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5843 *) Allow the config file extension section to be overwritten on the
5844 command line. Based on an original idea from Massimiliano Pala
5845 <madwolf@comune.modena.it>. The new option is called -extensions
5846 and can be applied to ca, req and x509. Also -reqexts to override
5847 the request extensions in req and -crlexts to override the crl extensions
5851 *) Add new feature to the SPKAC handling in ca. Now you can include
5852 the same field multiple times by preceding it by "XXXX." for example:
5855 this is the same syntax as used in the req config file.
5858 *) Allow certificate extensions to be added to certificate requests. These
5859 are specified in a 'req_extensions' option of the req section of the
5860 config file. They can be printed out with the -text option to req but
5861 are otherwise ignored at present.
5864 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5865 data read consists of only the final block it would not decrypted because
5866 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5867 A misplaced 'break' also meant the decrypted final block might not be
5868 copied until the next read.
5871 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5872 a few extra parameters to the DH structure: these will be useful if
5873 for example we want the value of 'q' or implement X9.42 DH.
5876 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5877 provides hooks that allow the default DSA functions or functions on a
5878 "per key" basis to be replaced. This allows hardware acceleration and
5879 hardware key storage to be handled without major modification to the
5880 library. Also added low level modexp hooks and CRYPTO_EX structure and
5881 associated functions.
5884 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5885 as "read only": it can't be written to and the buffer it points to will
5886 not be freed. Reading from a read only BIO is much more efficient than
5887 a normal memory BIO. This was added because there are several times when
5888 an area of memory needs to be read from a BIO. The previous method was
5889 to create a memory BIO and write the data to it, this results in two
5890 copies of the data and an O(n^2) reading algorithm. There is a new
5891 function BIO_new_mem_buf() which creates a read only memory BIO from
5892 an area of memory. Also modified the PKCS#7 routines to use read only
5896 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5897 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5898 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5899 but a retry condition occured while trying to read the rest.
5902 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5903 NID_pkcs7_encrypted by default: this was wrong since this should almost
5904 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5905 the encrypted data type: this is a more sensible place to put it and it
5906 allows the PKCS#12 code to be tidied up that duplicated this
5910 *) Changed obj_dat.pl script so it takes its input and output files on
5911 the command line. This should avoid shell escape redirection problems
5915 *) Initial support for certificate extension requests, these are included
5916 in things like Xenroll certificate requests. Included functions to allow
5917 extensions to be obtained and added.
5920 *) -crlf option to s_client and s_server for sending newlines as
5921 CRLF (as required by many protocols).
5924 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5926 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5927 [Ralf S. Engelschall]
5929 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5930 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5932 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5936 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5937 DH parameters/keys (q is lost during that conversion, but the resulting
5938 DH parameters contain its length).
5940 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5941 much faster than DH_generate_parameters (which creates parameters
5942 where p = 2*q + 1), and also the smaller q makes DH computations
5943 much more efficient (160-bit exponentiation instead of 1024-bit
5944 exponentiation); so this provides a convenient way to support DHE
5945 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5946 utter importance to use
5947 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5949 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5950 when such DH parameters are used, because otherwise small subgroup
5951 attacks may become possible!
5954 *) Avoid memory leak in i2d_DHparams.
5957 *) Allow the -k option to be used more than once in the enc program:
5958 this allows the same encrypted message to be read by multiple recipients.
5961 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5962 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5963 it will always use the numerical form of the OID, even if it has a short
5967 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5968 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5969 otherwise bn_mod_exp was called. In the case of hardware keys for example
5970 no private key components need be present and it might store extra data
5971 in the RSA structure, which cannot be accessed from bn_mod_exp.
5972 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5973 private key operations.
5976 *) Added support for SPARC Linux.
5979 *) pem_password_cb function type incompatibly changed from
5980 typedef int pem_password_cb(char *buf, int size, int rwflag);
5982 ....(char *buf, int size, int rwflag, void *userdata);
5983 so that applications can pass data to their callbacks:
5984 The PEM[_ASN1]_{read,write}... functions and macros now take an
5985 additional void * argument, which is just handed through whenever
5986 the password callback is called.
5987 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5989 New function SSL_CTX_set_default_passwd_cb_userdata.
5991 Compatibility note: As many C implementations push function arguments
5992 onto the stack in reverse order, the new library version is likely to
5993 interoperate with programs that have been compiled with the old
5994 pem_password_cb definition (PEM_whatever takes some data that
5995 happens to be on the stack as its last argument, and the callback
5996 just ignores this garbage); but there is no guarantee whatsoever that
5999 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6000 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6001 problems not only on Windows, but also on some Unix platforms.
6002 To avoid problematic command lines, these definitions are now in an
6003 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6004 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6007 *) MIPS III/IV assembler module is reimplemented.
6010 *) More DES library cleanups: remove references to srand/rand and
6011 delete an unused file.
6014 *) Add support for the the free Netwide assembler (NASM) under Win32,
6015 since not many people have MASM (ml) and it can be hard to obtain.
6016 This is currently experimental but it seems to work OK and pass all
6017 the tests. Check out INSTALL.W32 for info.
6020 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6021 without temporary keys kept an extra copy of the server key,
6022 and connections with temporary keys did not free everything in case
6026 *) New function RSA_check_key and new openssl rsa option -check
6027 for verifying the consistency of RSA keys.
6028 [Ulf Moeller, Bodo Moeller]
6030 *) Various changes to make Win32 compile work:
6031 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6032 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6033 comparison" warnings.
6034 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6037 *) Add a debugging option to PKCS#5 v2 key generation function: when
6038 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6039 derived keys are printed to stderr.
6042 *) Copy the flags in ASN1_STRING_dup().
6043 [Roman E. Pavlov <pre@mo.msk.ru>]
6045 *) The x509 application mishandled signing requests containing DSA
6046 keys when the signing key was also DSA and the parameters didn't match.
6048 It was supposed to omit the parameters when they matched the signing key:
6049 the verifying software was then supposed to automatically use the CA's
6050 parameters if they were absent from the end user certificate.
6052 Omitting parameters is no longer recommended. The test was also
6053 the wrong way round! This was probably due to unusual behaviour in
6054 EVP_cmp_parameters() which returns 1 if the parameters match.
6055 This meant that parameters were omitted when they *didn't* match and
6056 the certificate was useless. Certificates signed with 'ca' didn't have
6058 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6060 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6061 The interface is as follows:
6062 Applications can use
6063 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6064 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6065 "off" is now the default.
6066 The library internally uses
6067 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6068 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6069 to disable memory-checking temporarily.
6071 Some inconsistent states that previously were possible (and were
6072 even the default) are now avoided.
6074 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6075 with each memory chunk allocated; this is occasionally more helpful
6076 than just having a counter.
6078 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6080 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6084 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6085 which largely parallels "options", but is for changing API behaviour,
6086 whereas "options" are about protocol behaviour.
6087 Initial "mode" flags are:
6089 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6090 a single record has been written.
6091 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6092 retries use the same buffer location.
6093 (But all of the contents must be
6097 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6100 *) Fix problems with no-hmac etc.
6101 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6103 *) New functions RSA_get_default_method(), RSA_set_method() and
6104 RSA_get_method(). These allows replacement of RSA_METHODs without having
6105 to mess around with the internals of an RSA structure.
6108 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6109 Also really enable memory leak checks in openssl.c and in some
6111 [Chad C. Mulligan, Bodo Moeller]
6113 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6114 up the length of negative integers. This has now been simplified to just
6115 store the length when it is first determined and use it later, rather
6116 than trying to keep track of where data is copied and updating it to
6118 [Steve Henson, reported by Brien Wheeler
6119 <bwheeler@authentica-security.com>]
6121 *) Add a new function PKCS7_signatureVerify. This allows the verification
6122 of a PKCS#7 signature but with the signing certificate passed to the
6123 function itself. This contrasts with PKCS7_dataVerify which assumes the
6124 certificate is present in the PKCS#7 structure. This isn't always the
6125 case: certificates can be omitted from a PKCS#7 structure and be
6126 distributed by "out of band" means (such as a certificate database).
6129 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6130 function prototypes in pem.h, also change util/mkdef.pl to add the
6131 necessary function names.
6134 *) mk1mf.pl (used by Windows builds) did not properly read the
6135 options set by Configure in the top level Makefile, and Configure
6136 was not even able to write more than one option correctly.
6137 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6140 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6141 file to be loaded from a BIO or FILE pointer. The BIO version will
6142 for example allow memory BIOs to contain config info.
6145 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6146 Whoever hopes to achieve shared-library compatibility across versions
6147 must use this, not the compile-time macro.
6148 (Exercise 0.9.4: Which is the minimum library version required by
6150 Note: All this applies only to multi-threaded programs, others don't
6154 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6155 through a BIO pair triggered the default case, i.e.
6156 SSLerr(...,SSL_R_UNKNOWN_STATE).
6159 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6160 can use the SSL library even if none of the specific BIOs is
6164 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6165 for the encoded length.
6166 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6168 *) Add initial documentation of the X509V3 functions.
6171 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6172 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6173 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6174 secure PKCS#8 private key format with a high iteration count.
6177 *) Fix determination of Perl interpreter: A perl or perl5
6178 _directory_ in $PATH was also accepted as the interpreter.
6179 [Ralf S. Engelschall]
6181 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6182 wrong with it but it was very old and did things like calling
6183 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6187 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6188 to use the new extension code.
6191 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6192 with macros. This should make it easier to change their form, add extra
6193 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6197 *) Add to configuration table a new entry that can specify an alternative
6198 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6199 according to Mark Crispin <MRC@Panda.COM>.
6203 *) DES CBC did not update the IV. Weird.
6206 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6207 Changing the behaviour of the former might break existing programs --
6208 where IV updating is needed, des_ncbc_encrypt can be used.
6211 *) When bntest is run from "make test" it drives bc to check its
6212 calculations, as well as internally checking them. If an internal check
6213 fails, it needs to cause bc to give a non-zero result or make test carries
6214 on without noticing the failure. Fixed.
6217 *) DES library cleanups.
6220 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6221 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6222 ciphers. NOTE: although the key derivation function has been verified
6223 against some published test vectors it has not been extensively tested
6224 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6228 *) Instead of "mkdir -p", which is not fully portable, use new
6229 Perl script "util/mkdir-p.pl".
6232 *) Rewrite the way password based encryption (PBE) is handled. It used to
6233 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6234 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6235 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6236 the 'parameter' field of the AlgorithmIdentifier is passed to the
6237 underlying key generation function so it must do its own ASN1 parsing.
6238 This has also changed the EVP_PBE_CipherInit() function which now has a
6239 'parameter' argument instead of literal salt and iteration count values
6240 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6243 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6244 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6245 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6246 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6247 value was just used as a "magic string" and not used directly its
6248 value doesn't matter.
6251 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6255 *) "linux-sparc64" configuration (ultrapenguin).
6256 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6257 "linux-sparc" configuration.
6258 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6260 *) config now generates no-xxx options for missing ciphers.
6263 *) Support the EBCDIC character set (work in progress).
6264 File ebcdic.c not yet included because it has a different license.
6265 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6267 *) Support BS2000/OSD-POSIX.
6268 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6270 *) Make callbacks for key generation use void * instead of char *.
6273 *) Make S/MIME samples compile (not yet tested).
6276 *) Additional typesafe stacks.
6279 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6283 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6285 *) New configuration variant "sco5-gcc".
6287 *) Updated some demos.
6288 [Sean O Riordain, Wade Scholine]
6290 *) Add missing BIO_free at exit of pkcs12 application.
6293 *) Fix memory leak in conf.c.
6296 *) Updates for Win32 to assembler version of MD5.
6299 *) Set #! path to perl in apps/der_chop to where we found it
6300 instead of using a fixed path.
6303 *) SHA library changes for irix64-mips4-cc.
6306 *) Improvements for VMS support.
6310 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6312 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6313 This also avoids the problems with SC4.2 and unpatched SC5.
6314 [Andy Polyakov <appro@fy.chalmers.se>]
6316 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6317 These are required because of the typesafe stack would otherwise break
6318 existing code. If old code used a structure member which used to be STACK
6319 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6320 sk_num or sk_value it would produce an error because the num, data members
6321 are not present in STACK_OF. Now it just produces a warning. sk_set
6322 replaces the old method of assigning a value to sk_value
6323 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6324 that does this will no longer work (and should use sk_set instead) but
6325 this could be regarded as a "questionable" behaviour anyway.
6328 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6329 correctly handle encrypted S/MIME data.
6332 *) Change type of various DES function arguments from des_cblock
6333 (which means, in function argument declarations, pointer to char)
6334 to des_cblock * (meaning pointer to array with 8 char elements),
6335 which allows the compiler to do more typechecking; it was like
6336 that back in SSLeay, but with lots of ugly casts.
6338 Introduce new type const_des_cblock.
6341 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6342 problems: find RecipientInfo structure that matches recipient certificate
6343 and initialise the ASN1 structures properly based on passed cipher.
6346 *) Belatedly make the BN tests actually check the results.
6349 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6350 to and from BNs: it was completely broken. New compilation option
6351 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6352 key elements as negative integers.
6355 *) Reorganize and speed up MD5.
6356 [Andy Polyakov <appro@fy.chalmers.se>]
6359 [Richard Levitte <richard@levitte.org>]
6361 *) New option -out to asn1parse to allow the parsed structure to be
6362 output to a file. This is most useful when combined with the -strparse
6363 option to examine the output of things like OCTET STRINGS.
6366 *) Make SSL library a little more fool-proof by not requiring any longer
6367 that SSL_set_{accept,connect}_state be called before
6368 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6369 in many applications because usually everything *appeared* to work as
6370 intended anyway -- now it really works as intended).
6373 *) Move openssl.cnf out of lib/.
6376 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6377 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6378 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6379 [Ralf S. Engelschall]
6381 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6382 handle PKCS#7 enveloped data properly.
6383 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6385 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6386 copying pointers. The cert_st handling is changed by this in
6387 various ways (and thus what used to be known as ctx->default_cert
6388 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6389 any longer when s->cert does not give us what we need).
6390 ssl_cert_instantiate becomes obsolete by this change.
6391 As soon as we've got the new code right (possibly it already is?),
6392 we have solved a couple of bugs of the earlier code where s->cert
6393 was used as if it could not have been shared with other SSL structures.
6395 Note that using the SSL API in certain dirty ways now will result
6396 in different behaviour than observed with earlier library versions:
6397 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6398 does not influence s as it used to.
6400 In order to clean up things more thoroughly, inside SSL_SESSION
6401 we don't use CERT any longer, but a new structure SESS_CERT
6402 that holds per-session data (if available); currently, this is
6403 the peer's certificate chain and, for clients, the server's certificate
6404 and temporary key. CERT holds only those values that can have
6405 meaningful defaults in an SSL_CTX.
6408 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6409 from the internal representation. Various PKCS#7 fixes: remove some
6410 evil casts and set the enc_dig_alg field properly based on the signing
6414 *) Allow PKCS#12 password to be set from the command line or the
6415 environment. Let 'ca' get its config file name from the environment
6416 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6420 *) Allow certificate policies extension to use an IA5STRING for the
6421 organization field. This is contrary to the PKIX definition but
6422 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6426 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6427 without disallowing inline assembler and the like for non-pedantic builds.
6430 *) Support Borland C++ builder.
6431 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6436 *) SHA-1 cleanups and performance enhancements.
6437 [Andy Polyakov <appro@fy.chalmers.se>]
6439 *) Sparc v8plus assembler for the bignum library.
6440 [Andy Polyakov <appro@fy.chalmers.se>]
6442 *) Accept any -xxx and +xxx compiler options in Configure.
6445 *) Update HPUX configuration.
6448 *) Add missing sk_<type>_unshift() function to safestack.h
6449 [Ralf S. Engelschall]
6451 *) New function SSL_CTX_use_certificate_chain_file that sets the
6452 "extra_cert"s in addition to the certificate. (This makes sense
6453 only for "PEM" format files, as chains as a whole are not
6457 *) Support verify_depth from the SSL API.
6458 x509_vfy.c had what can be considered an off-by-one-error:
6459 Its depth (which was not part of the external interface)
6460 was actually counting the number of certificates in a chain;
6461 now it really counts the depth.
6464 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6465 instead of X509err, which often resulted in confusing error
6466 messages since the error codes are not globally unique
6467 (e.g. an alleged error in ssl3_accept when a certificate
6468 didn't match the private key).
6470 *) New function SSL_CTX_set_session_id_context that allows to set a default
6471 value (so that you don't need SSL_set_session_id_context for each
6472 connection using the SSL_CTX).
6475 *) OAEP decoding bug fix.
6478 *) Support INSTALL_PREFIX for package builders, as proposed by
6482 *) New Configure options "threads" and "no-threads". For systems
6483 where the proper compiler options are known (currently Solaris
6484 and Linux), "threads" is the default.
6487 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6490 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6491 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6492 such as /usr/local/bin.
6495 *) "make linux-shared" to build shared libraries.
6496 [Niels Poppe <niels@netbox.org>]
6498 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6501 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6502 extension adding in x509 utility.
6505 *) Remove NOPROTO sections and error code comments.
6508 *) Partial rewrite of the DEF file generator to now parse the ANSI
6512 *) New Configure options --prefix=DIR and --openssldir=DIR.
6515 *) Complete rewrite of the error code script(s). It is all now handled
6516 by one script at the top level which handles error code gathering,
6517 header rewriting and C source file generation. It should be much better
6518 than the old method: it now uses a modified version of Ulf's parser to
6519 read the ANSI prototypes in all header files (thus the old K&R definitions
6520 aren't needed for error creation any more) and do a better job of
6521 translating function codes into names. The old 'ASN1 error code imbedded
6522 in a comment' is no longer necessary and it doesn't use .err files which
6523 have now been deleted. Also the error code call doesn't have to appear all
6524 on one line (which resulted in some large lines...).
6527 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6530 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6531 0 (which usually indicates a closed connection), but continue reading.
6534 *) Fix some race conditions.
6537 *) Add support for CRL distribution points extension. Add Certificate
6538 Policies and CRL distribution points documentation.
6541 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6544 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6545 8 of keying material. Merlin has also confirmed interop with this fix
6546 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6547 [Merlin Hughes <merlin@baltimore.ie>]
6549 *) Fix lots of warnings.
6550 [Richard Levitte <levitte@stacken.kth.se>]
6552 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6553 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6554 [Richard Levitte <levitte@stacken.kth.se>]
6556 *) Fix problems with sizeof(long) == 8.
6557 [Andy Polyakov <appro@fy.chalmers.se>]
6559 *) Change functions to ANSI C.
6562 *) Fix typos in error codes.
6563 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6565 *) Remove defunct assembler files from Configure.
6568 *) SPARC v8 assembler BIGNUM implementation.
6569 [Andy Polyakov <appro@fy.chalmers.se>]
6571 *) Support for Certificate Policies extension: both print and set.
6572 Various additions to support the r2i method this uses.
6575 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6576 return a const string when you are expecting an allocated buffer.
6579 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6580 types DirectoryString and DisplayText.
6583 *) Add code to allow r2i extensions to access the configuration database,
6584 add an LHASH database driver and add several ctx helper functions.
6587 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6588 fail when they extended the size of a BIGNUM.
6591 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6592 support typesafe stack.
6595 *) Fix typo in SSL_[gs]et_options().
6596 [Nils Frostberg <nils@medcom.se>]
6598 *) Delete various functions and files that belonged to the (now obsolete)
6599 old X509V3 handling code.
6602 *) New Configure option "rsaref".
6605 *) Don't auto-generate pem.h.
6608 *) Introduce type-safe ASN.1 SETs.
6611 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6612 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6614 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6615 that links with OpenSSL (well at least cause lots of warnings), but fear
6616 not: the conversion is trivial, and it eliminates loads of evil casts. A
6617 few STACKed things have been converted already. Feel free to convert more.
6618 In the fullness of time, I'll do away with the STACK type altogether.
6621 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6622 specified in <certfile> by updating the entry in the index.txt file.
6623 This way one no longer has to edit the index.txt file manually for
6624 revoking a certificate. The -revoke option does the gory details now.
6625 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6627 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6628 `-text' option at all and this way the `-noout -text' combination was
6629 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6630 [Ralf S. Engelschall]
6632 *) Make sure a corresponding plain text error message exists for the
6633 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6634 verify callback function determined that a certificate was revoked.
6635 [Ralf S. Engelschall]
6637 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6638 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6639 all available cipers including rc5, which was forgotten until now.
6640 In order to let the testing shell script know which algorithms
6641 are available, a new (up to now undocumented) command
6642 "openssl list-cipher-commands" is used.
6645 *) Bugfix: s_client occasionally would sleep in select() when
6646 it should have checked SSL_pending() first.
6649 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6650 the raw DSA values prior to ASN.1 encoding.
6653 *) Tweaks to Configure
6654 [Niels Poppe <niels@netbox.org>]
6656 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6660 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6663 *) New config option to avoid instructions that are illegal on the 80386.
6664 The default code is faster, but requires at least a 486.
6667 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6668 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6669 same as SSL2_VERSION anyway.
6672 *) New "-showcerts" option for s_client.
6675 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6676 application. Various cleanups and fixes.
6679 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6680 modify error routines to work internally. Add error codes and PBE init
6681 to library startup routines.
6684 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6685 packing functions to asn1 and evp. Changed function names and error
6686 codes along the way.
6689 *) PKCS12 integration: and so it begins... First of several patches to
6690 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6691 objects to objects.h
6694 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6695 and display support for Thawte strong extranet extension.
6698 *) Add LinuxPPC support.
6699 [Jeff Dubrule <igor@pobox.org>]
6701 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6702 bn_div_words in alpha.s.
6703 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6705 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6706 OAEP isn't supported when OpenSSL is built with RSAref.
6707 [Ulf Moeller <ulf@fitug.de>]
6709 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6710 so they no longer are missing under -DNOPROTO.
6711 [Soren S. Jorvang <soren@t.dk>]
6714 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6716 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6717 doesn't work when the session is reused. Coming soon!
6720 *) Fix a security hole, that allows sessions to be reused in the wrong
6721 context thus bypassing client cert protection! All software that uses
6722 client certs and session caches in multiple contexts NEEDS PATCHING to
6723 allow session reuse! A fuller solution is in the works.
6724 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6726 *) Some more source tree cleanups (removed obsolete files
6727 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6728 permission on "config" script to be executable) and a fix for the INSTALL
6730 [Ulf Moeller <ulf@fitug.de>]
6732 *) Remove some legacy and erroneous uses of malloc, free instead of
6734 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6736 *) Make rsa_oaep_test return non-zero on error.
6737 [Ulf Moeller <ulf@fitug.de>]
6739 *) Add support for native Solaris shared libraries. Configure
6740 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6741 if someone would make that last step automatic.
6742 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6744 *) ctx_size was not built with the right compiler during "make links". Fixed.
6747 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6748 except NULL ciphers". This means the default cipher list will no longer
6749 enable NULL ciphers. They need to be specifically enabled e.g. with
6750 the string "DEFAULT:eNULL".
6753 *) Fix to RSA private encryption routines: if p < q then it would
6754 occasionally produce an invalid result. This will only happen with
6755 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6758 *) Be less restrictive and allow also `perl util/perlpath.pl
6759 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6760 because this way one can also use an interpreter named `perl5' (which is
6761 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6762 installed as `perl').
6763 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6765 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6766 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6768 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6769 advapi32.lib to Win32 build and change the pem test comparision
6770 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6771 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6772 and crypto/des/ede_cbcm_enc.c.
6775 *) DES quad checksum was broken on big-endian architectures. Fixed.
6778 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6779 Win32 test batch file so it (might) work again. The Win32 test batch file
6780 is horrible: I feel ill....
6783 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6784 in e_os.h. Audit of header files to check ANSI and non ANSI
6785 sections: 10 functions were absent from non ANSI section and not exported
6786 from Windows DLLs. Fixed up libeay.num for new functions.
6789 *) Make `openssl version' output lines consistent.
6790 [Ralf S. Engelschall]
6792 *) Fix Win32 symbol export lists for BIO functions: Added
6793 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6794 to ms/libeay{16,32}.def.
6795 [Ralf S. Engelschall]
6797 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6798 fine under Unix and passes some trivial tests I've now added. But the
6799 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6800 added to make sure no one expects that this stuff really works in the
6801 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6802 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6804 [Ralf S. Engelschall]
6806 *) Fix the generation of two part addresses in perl.
6807 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6809 *) Add config entry for Linux on MIPS.
6810 [John Tobey <jtobey@channel1.com>]
6812 *) Make links whenever Configure is run, unless we are on Windoze.
6815 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6816 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6820 *) Add a useful kludge to allow package maintainers to specify compiler and
6821 other platforms details on the command line without having to patch the
6822 Configure script everytime: One now can use ``perl Configure
6823 <id>:<details>'', i.e. platform ids are allowed to have details appended
6824 to them (seperated by colons). This is treated as there would be a static
6825 pre-configured entry in Configure's %table under key <id> with value
6826 <details> and ``perl Configure <id>'' is called. So, when you want to
6827 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6828 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6829 now, which overrides the FreeBSD-elf entry on-the-fly.
6830 [Ralf S. Engelschall]
6832 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6835 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6836 on the `perl Configure ...' command line. This way one can compile
6837 OpenSSL libraries with Position Independent Code (PIC) which is needed
6838 for linking it into DSOs.
6839 [Ralf S. Engelschall]
6841 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6845 *) Cleaned up the LICENSE document: The official contact for any license
6846 questions now is the OpenSSL core team under openssl-core@openssl.org.
6847 And add a paragraph about the dual-license situation to make sure people
6848 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6849 to the OpenSSL toolkit.
6850 [Ralf S. Engelschall]
6852 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6853 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6854 Additonally cleaned up the `make links' target: Remove unnecessary
6855 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6856 to speed processing and no longer clutter the display with confusing
6857 stuff. Instead only the actually done links are displayed.
6858 [Ralf S. Engelschall]
6860 *) Permit null encryption ciphersuites, used for authentication only. It used
6861 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6862 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6866 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6867 signed attributes when verifying signatures (this would break them),
6868 the detached data encoding was wrong and public keys obtained using
6869 X509_get_pubkey() weren't freed.
6872 *) Add text documentation for the BUFFER functions. Also added a work around
6873 to a Win95 console bug. This was triggered by the password read stuff: the
6874 last character typed gets carried over to the next fread(). If you were
6875 generating a new cert request using 'req' for example then the last
6876 character of the passphrase would be CR which would then enter the first
6880 *) Added the new `Includes OpenSSL Cryptography Software' button as
6881 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6882 button and can be used by applications based on OpenSSL to show the
6883 relationship to the OpenSSL project.
6884 [Ralf S. Engelschall]
6886 *) Remove confusing variables in function signatures in files
6887 ssl/ssl_lib.c and ssl/ssl.h.
6888 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6890 *) Don't install bss_file.c under PREFIX/include/
6891 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6893 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6894 functions that return function pointers and has support for NT specific
6895 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6896 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6897 unsigned to signed types: this was killing the Win32 compile.
6900 *) Add new certificate file to stack functions,
6901 SSL_add_dir_cert_subjects_to_stack() and
6902 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6903 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6904 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6905 This means that Apache-SSL and similar packages don't have to mess around
6906 to add as many CAs as they want to the preferred list.
6909 *) Experiment with doxygen documentation. Currently only partially applied to
6911 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6912 openssl.doxy as the configuration file.
6915 *) Get rid of remaining C++-style comments which strict C compilers hate.
6916 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6918 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6919 compiled in by default: it has problems with large keys.
6922 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6923 DH private keys and/or callback functions which directly correspond to
6924 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6925 is needed for applications which have to configure certificates on a
6926 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6928 For the RSA certificate situation is makes no difference, but
6929 for the DSA certificate situation this fixes the "no shared cipher"
6930 problem where the OpenSSL cipher selection procedure failed because the
6931 temporary keys were not overtaken from the context and the API provided
6932 no way to reconfigure them.
6933 The new functions now let applications reconfigure the stuff and they
6934 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6935 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6936 non-public-API function ssl_cert_instantiate() is used as a helper
6937 function and also to reduce code redundancy inside ssl_rsa.c.
6938 [Ralf S. Engelschall]
6940 *) Move s_server -dcert and -dkey options out of the undocumented feature
6941 area because they are useful for the DSA situation and should be
6942 recognized by the users.
6943 [Ralf S. Engelschall]
6945 *) Fix the cipher decision scheme for export ciphers: the export bits are
6946 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6947 SSL_EXP_MASK. So, the original variable has to be used instead of the
6948 already masked variable.
6949 [Richard Levitte <levitte@stacken.kth.se>]
6951 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6952 [Richard Levitte <levitte@stacken.kth.se>]
6954 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6955 from `int' to `unsigned int' because it's a length and initialized by
6956 EVP_DigestFinal() which expects an `unsigned int *'.
6957 [Richard Levitte <levitte@stacken.kth.se>]
6959 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6960 script. Instead use the usual Shell->Perl transition trick.
6961 [Ralf S. Engelschall]
6963 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6964 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6965 -noout -modulus' as it's already the case for `openssl rsa -noout
6966 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6967 currently the public key is printed (a decision which was already done by
6968 `openssl dsa -modulus' in the past) which serves a similar purpose.
6969 Additionally the NO_RSA no longer completely removes the whole -modulus
6970 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6972 [Ralf S. Engelschall]
6974 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6975 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6976 [Arne Ansper <arne@ats.cyber.ee>]
6978 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6979 to be added. Now both 'req' and 'ca' can use new objects defined in the
6983 *) Add cool BIO that does syslog (or event log on NT).
6984 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6986 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6987 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6988 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6989 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6992 *) Add preliminary config info for new extension code.
6995 *) Make RSA_NO_PADDING really use no padding.
6996 [Ulf Moeller <ulf@fitug.de>]
6998 *) Generate errors when private/public key check is done.
7001 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7002 for some CRL extensions and new objects added.
7005 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7006 key usage extension and fuller support for authority key id.
7009 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7010 padding method for RSA, which is recommended for new applications in PKCS
7011 #1 v2.0 (RFC 2437, October 1998).
7012 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7013 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7014 against Bleichbacher's attack on RSA.
7015 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7018 *) Updates to the new SSL compression code
7019 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7021 *) Fix so that the version number in the master secret, when passed
7022 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7023 (because the server will not accept higher), that the version number
7024 is 0x03,0x01, not 0x03,0x00
7025 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7027 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7028 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7029 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7032 *) Support for RAW extensions where an arbitrary extension can be
7033 created by including its DER encoding. See apps/openssl.cnf for
7037 *) Make sure latest Perl versions don't interpret some generated C array
7038 code as Perl array code in the crypto/err/err_genc.pl script.
7039 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7041 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7042 not many people have the assembler. Various Win32 compilation fixes and
7043 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7047 *) Modify configure script 'Configure' to automatically create crypto/date.h
7048 file under Win32 and also build pem.h from pem.org. New script
7049 util/mkfiles.pl to create the MINFO file on environments that can't do a
7050 'make files': perl util/mkfiles.pl >MINFO should work.
7053 *) Major rework of DES function declarations, in the pursuit of correctness
7054 and purity. As a result, many evil casts evaporated, and some weirdness,
7055 too. You may find this causes warnings in your code. Zapping your evil
7056 casts will probably fix them. Mostly.
7059 *) Fix for a typo in asn1.h. Bug fix to object creation script
7060 obj_dat.pl. It considered a zero in an object definition to mean
7061 "end of object": none of the objects in objects.h have any zeros
7062 so it wasn't spotted.
7063 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7065 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7066 Masking (CBCM). In the absence of test vectors, the best I have been able
7067 to do is check that the decrypt undoes the encrypt, so far. Send me test
7068 vectors if you have them.
7071 *) Correct calculation of key length for export ciphers (too much space was
7072 allocated for null ciphers). This has not been tested!
7075 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7076 message is now correct (it understands "crypto" and "ssl" on its
7077 command line). There is also now an "update" option. This will update
7078 the util/ssleay.num and util/libeay.num files with any new functions.
7080 perl util/mkdef.pl crypto ssl update
7081 it will update them.
7084 *) Overhauled the Perl interface (perl/*):
7085 - ported BN stuff to OpenSSL's different BN library
7086 - made the perl/ source tree CVS-aware
7087 - renamed the package from SSLeay to OpenSSL (the files still contain
7088 their history because I've copied them in the repository)
7089 - removed obsolete files (the test scripts will be replaced
7090 by better Test::Harness variants in the future)
7091 [Ralf S. Engelschall]
7093 *) First cut for a very conservative source tree cleanup:
7094 1. merge various obsolete readme texts into doc/ssleay.txt
7095 where we collect the old documents and readme texts.
7096 2. remove the first part of files where I'm already sure that we no
7097 longer need them because of three reasons: either they are just temporary
7098 files which were left by Eric or they are preserved original files where
7099 I've verified that the diff is also available in the CVS via "cvs diff
7100 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7101 the crypto/md/ stuff).
7102 [Ralf S. Engelschall]
7104 *) More extension code. Incomplete support for subject and issuer alt
7105 name, issuer and authority key id. Change the i2v function parameters
7106 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7107 what that's for :-) Fix to ASN1 macro which messed up
7108 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7111 *) Preliminary support for ENUMERATED type. This is largely copied from the
7115 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7116 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7118 *) Make sure `make rehash' target really finds the `openssl' program.
7119 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7121 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7122 like to hear about it if this slows down other processors.
7125 *) Add CygWin32 platform information to Configure script.
7126 [Alan Batie <batie@aahz.jf.intel.com>]
7128 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7129 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7131 *) New program nseq to manipulate netscape certificate sequences
7134 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7138 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7139 but the BN code had some problems that would cause failures when
7140 doing certificate verification and some other functions.
7141 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7143 *) Add ASN1 and PEM code to support netscape certificate sequences.
7146 *) Add ASN1 and PEM code to support netscape certificate sequences.
7149 *) Add several PKIX and private extended key usage OIDs.
7152 *) Modify the 'ca' program to handle the new extension code. Modify
7153 openssl.cnf for new extension format, add comments.
7156 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7157 and add a sample to openssl.cnf so req -x509 now adds appropriate
7161 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7162 error code, add initial support to X509_print() and x509 application.
7165 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7166 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7167 stuff is currently isolated and isn't even compiled yet.
7170 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7171 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7172 Removed the versions check from X509 routines when loading extensions:
7173 this allows certain broken certificates that don't set the version
7174 properly to be processed.
7177 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7178 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7179 can still be regenerated with "make depend".
7182 *) Spelling mistake in C version of CAST-128.
7183 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7185 *) Changes to the error generation code. The perl script err-code.pl
7186 now reads in the old error codes and retains the old numbers, only
7187 adding new ones if necessary. It also only changes the .err files if new
7188 codes are added. The makefiles have been modified to only insert errors
7189 when needed (to avoid needlessly modifying header files). This is done
7190 by only inserting errors if the .err file is newer than the auto generated
7191 C file. To rebuild all the error codes from scratch (the old behaviour)
7192 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7193 or delete all the .err files.
7196 *) CAST-128 was incorrectly implemented for short keys. The C version has
7197 been fixed, but is untested. The assembler versions are also fixed, but
7198 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7199 to regenerate it if needed.
7200 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7201 Hagino <itojun@kame.net>]
7203 *) File was opened incorrectly in randfile.c.
7204 [Ulf Möller <ulf@fitug.de>]
7206 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7207 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7208 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7209 al: it's just almost always a UTCTime. Note this patch adds new error
7210 codes so do a "make errors" if there are problems.
7213 *) Correct Linux 1 recognition in config.
7214 [Ulf Möller <ulf@fitug.de>]
7216 *) Remove pointless MD5 hash when using DSA keys in ca.
7217 [Anonymous <nobody@replay.com>]
7219 *) Generate an error if given an empty string as a cert directory. Also
7220 generate an error if handed NULL (previously returned 0 to indicate an
7221 error, but didn't set one).
7222 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7224 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7227 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7228 parameters. This was causing a warning which killed off the Win32 compile.
7231 *) Remove C++ style comments from crypto/bn/bn_local.h.
7232 [Neil Costigan <neil.costigan@celocom.com>]
7234 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7235 based on a text string, looking up short and long names and finally
7236 "dot" format. The "dot" format stuff didn't work. Added new function
7237 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7238 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7239 OID is not part of the table.
7242 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7243 X509_LOOKUP_by_alias().
7246 *) Sort openssl functions by name.
7249 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7250 encryption from sample DSA keys (in case anyone is interested the password
7254 *) Make _all_ *_free functions accept a NULL pointer.
7255 [Frans Heymans <fheymans@isaserver.be>]
7257 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7259 [Anonymous <nobody@replay.com>]
7261 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7262 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7264 *) Don't blow it for numeric -newkey arguments to apps/req.
7265 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7267 *) Temp key "for export" tests were wrong in s3_srvr.c.
7268 [Anonymous <nobody@replay.com>]
7270 *) Add prototype for temp key callback functions
7271 SSL_CTX_set_tmp_{rsa,dh}_callback().
7274 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7275 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7278 *) X509_name_add_entry() freed the wrong thing after an error.
7279 [Arne Ansper <arne@ats.cyber.ee>]
7281 *) rsa_eay.c would attempt to free a NULL context.
7282 [Arne Ansper <arne@ats.cyber.ee>]
7284 *) BIO_s_socket() had a broken should_retry() on Windoze.
7285 [Arne Ansper <arne@ats.cyber.ee>]
7287 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7288 [Arne Ansper <arne@ats.cyber.ee>]
7290 *) Make sure the already existing X509_STORE->depth variable is initialized
7291 in X509_STORE_new(), but document the fact that this variable is still
7292 unused in the certificate verification process.
7293 [Ralf S. Engelschall]
7295 *) Fix the various library and apps files to free up pkeys obtained from
7296 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7299 *) Fix reference counting in X509_PUBKEY_get(). This makes
7300 demos/maurice/example2.c work, amongst others, probably.
7301 [Steve Henson and Ben Laurie]
7303 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7304 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7305 are no longer created. This way we have a single and consistent command
7306 line interface `openssl <command>', similar to `cvs <command>'.
7307 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7309 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7310 BIT STRING wrapper always have zero unused bits.
7313 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7316 *) Make the top-level INSTALL documentation easier to understand.
7319 *) Makefiles updated to exit if an error occurs in a sub-directory
7320 make (including if user presses ^C) [Paul Sutton]
7322 *) Make Montgomery context stuff explicit in RSA data structure.
7325 *) Fix build order of pem and err to allow for generated pem.h.
7328 *) Fix renumbering bug in X509_NAME_delete_entry().
7331 *) Enhanced the err-ins.pl script so it makes the error library number
7332 global and can add a library name. This is needed for external ASN1 and
7333 other error libraries.
7336 *) Fixed sk_insert which never worked properly.
7339 *) Fix ASN1 macros so they can handle indefinite length construted
7340 EXPLICIT tags. Some non standard certificates use these: they can now
7344 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7345 into a single doc/ssleay.txt bundle. This way the information is still
7346 preserved but no longer messes up this directory. Now it's new room for
7347 the new set of documenation files.
7348 [Ralf S. Engelschall]
7350 *) SETs were incorrectly DER encoded. This was a major pain, because they
7351 shared code with SEQUENCEs, which aren't coded the same. This means that
7352 almost everything to do with SETs or SEQUENCEs has either changed name or
7353 number of arguments.
7354 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7356 *) Fix test data to work with the above.
7359 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7360 was already fixed by Eric for 0.9.1 it seems.
7361 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7363 *) Autodetect FreeBSD3.
7366 *) Fix various bugs in Configure. This affects the following platforms:
7370 unixware-2.0-pentium
7374 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7375 before they are needed.
7378 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7382 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7384 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7385 changed SSLeay to OpenSSL in version strings.
7386 [Ralf S. Engelschall]
7388 *) Some fixups to the top-level documents.
7391 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7392 because the symlink to include/ was missing.
7393 [Ralf S. Engelschall]
7395 *) Incorporated the popular no-RSA/DSA-only patches
7396 which allow to compile a RSA-free SSLeay.
7397 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7399 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7400 when "ssleay" is still not found.
7401 [Ralf S. Engelschall]
7403 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7404 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7406 *) Updated the README file.
7407 [Ralf S. Engelschall]
7409 *) Added various .cvsignore files in the CVS repository subdirs
7410 to make a "cvs update" really silent.
7411 [Ralf S. Engelschall]
7413 *) Recompiled the error-definition header files and added
7414 missing symbols to the Win32 linker tables.
7415 [Ralf S. Engelschall]
7417 *) Cleaned up the top-level documents;
7418 o new files: CHANGES and LICENSE
7419 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7420 o merged COPYRIGHT into LICENSE
7421 o removed obsolete TODO file
7422 o renamed MICROSOFT to INSTALL.W32
7423 [Ralf S. Engelschall]
7425 *) Removed dummy files from the 0.9.1b source tree:
7426 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7427 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7428 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7429 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7430 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7431 [Ralf S. Engelschall]
7433 *) Added various platform portability fixes.
7436 *) The Genesis of the OpenSSL rpject:
7437 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7438 Young and Tim J. Hudson created while they were working for C2Net until
7440 [The OpenSSL Project]
7443 Changes between 0.9.0b and 0.9.1b [not released]
7445 *) Updated a few CA certificates under certs/
7448 *) Changed some BIGNUM api stuff.
7451 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7452 DGUX x86, Linux Alpha, etc.
7455 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7456 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7460 *) Add -strparse option to asn1pars program which parses nested
7462 [Dr Stephen Henson <shenson@bigfoot.com>]
7464 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7467 *) DSA fix for "ca" program.
7470 *) Added "-genkey" option to "dsaparam" program.
7473 *) Added RIPE MD160 (rmd160) message digest.
7476 *) Added -a (all) option to "ssleay version" command.
7479 *) Added PLATFORM define which is the id given to Configure.
7482 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7485 *) Extended the ASN.1 parser routines.
7488 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7491 *) Added a BN_CTX to the BN library.
7494 *) Fixed the weak key values in DES library
7497 *) Changed API in EVP library for cipher aliases.
7500 *) Added support for RC2/64bit cipher.
7503 *) Converted the lhash library to the crypto/mem.c functions.
7506 *) Added more recognized ASN.1 object ids.
7509 *) Added more RSA padding checks for SSL/TLS.
7512 *) Added BIO proxy/filter functionality.
7515 *) Added extra_certs to SSL_CTX which can be used
7516 send extra CA certificates to the client in the CA cert chain sending
7517 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7520 *) Now Fortezza is denied in the authentication phase because
7521 this is key exchange mechanism is not supported by SSLeay at all.
7524 *) Additional PKCS1 checks.
7527 *) Support the string "TLSv1" for all TLS v1 ciphers.
7530 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7531 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7534 *) Fixed a few memory leaks.
7537 *) Fixed various code and comment typos.
7540 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7541 bytes sent in the client random.
7542 [Edward Bishop <ebishop@spyglass.com>]