5 Changes between 0.9.7e and 0.9.8 [xx XXX xxxx]
7 *) Add processing of proxy certificates (see RFC 3820). This work was
8 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
9 EGEE (Enabling Grids for E-science in Europe).
12 *) RC4 performance overhaul on modern architectures/implementations, such
13 as Intel P4, IA-64 and AMD64.
16 *) New utility extract-section.pl. This can be used specify an alternative
17 section number in a pod file instead of having to treat each file as
18 a separate case in Makefile. This can be done by adding two lines to the
21 =for comment openssl_section:XXX
23 The blank line is mandatory.
27 *) New arguments -certform, -keyform and -pass for s_client and s_server
28 to allow alternative format key and certificate files and passphrase
32 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
33 update associated structures and add various utility functions.
35 Add new policy related verify parameters, include policy checking in
36 standard verify code. Enhance 'smime' application with extra parameters
37 to support policy checking and print out.
40 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
41 Nehemiah processors. These extensions support AES encryption in hardware
42 as well as RNG (though RNG support is currently disabled).
43 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
45 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
48 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
49 [Andy Polyakov and a number of other people]
51 *) Improved PowerPC platform support. Most notably BIGNUM assembler
52 implementation contributed by IBM.
53 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
55 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
56 exponent rather than 'unsigned long'. There is a corresponding change to
57 the new 'rsa_keygen' element of the RSA_METHOD structure.
58 [Jelte Jansen, Geoff Thorpe]
60 *) Functionality for creating the initial serial number file is now
61 moved from CA.pl to the 'ca' utility with a new option -create_serial.
63 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
64 number file to 1, which is bound to cause problems. To avoid
65 the problems while respecting compatibility between different 0.9.7
66 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
67 CA.pl for serial number initialization. With the new release 0.9.8,
68 we can fix the problem directly in the 'ca' utility.)
71 *) Reduced header interdepencies by declaring more opaque objects in
72 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
73 give fewer recursive includes, which could break lazy source code - so
74 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
75 developers should define this symbol when building and using openssl to
76 ensure they track the recommended behaviour, interfaces, [etc], but
77 backwards-compatible behaviour prevails when this isn't defined.
80 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
83 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
84 This will generate a random key of the appropriate length based on the
85 cipher context. The EVP_CIPHER can provide its own random key generation
86 routine to support keys of a specific form. This is used in the des and
87 3des routines to generate a key of the correct parity. Update S/MIME
88 code to use new functions and hence generate correct parity DES keys.
89 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
90 valid (weak or incorrect parity).
93 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
94 as looking them up. This is useful when the verified structure may contain
95 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
96 present unless the new PKCS7_NO_CRL flag is asserted.
99 *) Extend ASN1 oid configuration module. It now additionally accepts the
102 shortName = some long name, 1.2.3.4
105 *) Reimplemented the BN_CTX implementation. There is now no more static
106 limitation on the number of variables it can handle nor the depth of the
107 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
108 information can now expand as required, and rather than having a single
109 static array of bignums, BN_CTX now uses a linked-list of such arrays
110 allowing it to expand on demand whilst maintaining the usefulness of
114 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
115 to allow all RSA operations to function using a single BN_CTX.
118 *) Preliminary support for certificate policy evaluation and checking. This
119 is initially intended to pass the tests outlined in "Conformance Testing
120 of Relying Party Client Certificate Path Processing Logic" v1.07.
123 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
124 remained unused and not that useful. A variety of other little bignum
125 tweaks and fixes have also been made continuing on from the audit (see
129 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
130 associated ASN1, EVP and SSL functions and old ASN1 macros.
133 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
134 and this should never fail. So the return value from the use of
135 BN_set_word() (which can fail due to needless expansion) is now deprecated;
136 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
139 *) BN_CTX_get() should return zero-valued bignums, providing the same
140 initialised value as BN_new().
141 [Geoff Thorpe, suggested by Ulf Möller]
143 *) Support for inhibitAnyPolicy certificate extension.
146 *) An audit of the BIGNUM code is underway, for which debugging code is
147 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
148 is considered valid when processing BIGNUMs, and causes execution to
149 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
150 further steps are taken to deliberately pollute unused data in BIGNUM
151 structures to try and expose faulty code further on. For now, openssl will
152 (in its default mode of operation) continue to tolerate the inconsistent
153 forms that it has tolerated in the past, but authors and packagers should
154 consider trying openssl and their own applications when compiled with
155 these debugging symbols defined. It will help highlight potential bugs in
156 their own code, and will improve the test coverage for OpenSSL itself. At
157 some point, these tighter rules will become openssl's default to improve
158 maintainability, though the assert()s and other overheads will remain only
159 in debugging configurations. See bn.h for more details.
160 [Geoff Thorpe, Nils Larsch, Ulf Möller]
162 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
163 that can only be obtained through BN_CTX_new() (which implicitly
164 initialises it). The presence of this function only made it possible
165 to overwrite an existing structure (and cause memory leaks).
168 *) Because of the callback-based approach for implementing LHASH as a
169 template type, lh_insert() adds opaque objects to hash-tables and
170 lh_doall() or lh_doall_arg() are typically used with a destructor callback
171 to clean up those corresponding objects before destroying the hash table
172 (and losing the object pointers). So some over-zealous constifications in
173 LHASH have been relaxed so that lh_insert() does not take (nor store) the
174 objects as "const" and the lh_doall[_arg] callback wrappers are not
175 prototyped to have "const" restrictions on the object pointers they are
176 given (and so aren't required to cast them away any more).
179 *) The tmdiff.h API was so ugly and minimal that our own timing utility
180 (speed) prefers to use its own implementation. The two implementations
181 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
182 its object type properly exposed (MS_TM) instead of casting to/from "char
183 *". This may still change yet if someone realises MS_TM and "ms_time_***"
184 aren't necessarily the greatest nomenclatures - but this is what was used
185 internally to the implementation so I've used that for now.
188 *) Ensure that deprecated functions do not get compiled when
189 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
190 the self-tests were still using deprecated key-generation functions so
191 these have been updated also.
194 *) Reorganise PKCS#7 code to separate the digest location functionality
195 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
196 New function PKCS7_set_digest() to set the digest type for PKCS#7
197 digestedData type. Add additional code to correctly generate the
198 digestedData type and add support for this type in PKCS7 initialization
202 *) New function PKCS7_set0_type_other() this initializes a PKCS7
203 structure of type "other".
206 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
207 sure the loop does correctly stop and breaking ("division by zero")
208 modulus operations are not performed. The (pre-generated) prime
209 table crypto/bn/bn_prime.h was already correct, but it could not be
210 re-generated on some platforms because of the "division by zero"
211 situation in the script.
212 [Ralf S. Engelschall]
214 *) Update support for ECC-based TLS ciphersuites according to
215 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
216 SHA-1 now is only used for "small" curves (where the
217 representation of a field element takes up to 24 bytes); for
218 larger curves, the field element resulting from ECDH is directly
219 used as premaster secret.
220 [Douglas Stebila (Sun Microsystems Laboratories)]
222 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
223 curve secp160r1 to the tests.
224 [Douglas Stebila (Sun Microsystems Laboratories)]
226 *) Add the possibility to load symbols globally with DSO.
227 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
229 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
230 control of the error stack.
233 *) Add support for STORE in ENGINE.
236 *) Add the STORE type. The intention is to provide a common interface
237 to certificate and key stores, be they simple file-based stores, or
238 HSM-type store, or LDAP stores, or...
239 NOTE: The code is currently UNTESTED and isn't really used anywhere.
242 *) Add a generic structure called OPENSSL_ITEM. This can be used to
243 pass a list of arguments to any function as well as provide a way
244 for a function to pass data back to the caller.
247 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
248 works like BUF_strdup() but can be used to duplicate a portion of
249 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
253 *) Add the function sk_find_ex() which works like sk_find(), but will
254 return an index to an element even if an exact match couldn't be
255 found. The index is guaranteed to point at the element where the
256 searched-for key would be inserted to preserve sorting order.
259 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
260 takes an extra flags argument for optional functionality. Currently,
261 the following flags are defined:
263 OBJ_BSEARCH_VALUE_ON_NOMATCH
264 This one gets OBJ_bsearch_ex() to return a pointer to the first
265 element where the comparing function returns a negative or zero
268 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
269 This one gets OBJ_bsearch_ex() to return a pointer to the first
270 element where the comparing function returns zero. This is useful
271 if there are more than one element where the comparing function
275 *) Make it possible to create self-signed certificates with 'openssl ca'
276 in such a way that the self-signed certificate becomes part of the
277 CA database and uses the same mechanisms for serial number generation
278 as all other certificate signing. The new flag '-selfsign' enables
279 this functionality. Adapt CA.sh and CA.pl.in.
282 *) Add functionality to check the public key of a certificate request
283 against a given private. This is useful to check that a certificate
284 request can be signed by that key (self-signing).
287 *) Make it possible to have multiple active certificates with the same
288 subject in the CA index file. This is done only if the keyword
289 'unique_subject' is set to 'no' in the main CA section (default
290 if 'CA_default') of the configuration file. The value is saved
291 with the database itself in a separate index attribute file,
292 named like the index file with '.attr' appended to the name.
295 *) Generate muti valued AVAs using '+' notation in config files for
299 *) Support for nameConstraints certificate extension.
302 *) Support for policyConstraints certificate extension.
305 *) Support for policyMappings certificate extension.
308 *) Make sure the default DSA_METHOD implementation only uses its
309 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
310 and change its own handlers to be NULL so as to remove unnecessary
311 indirection. This lets alternative implementations fallback to the
312 default implementation more easily.
315 *) Support for directoryName in GeneralName related extensions
319 *) Make it possible to link applications using Makefile.shared.
320 Make that possible even when linking against static libraries!
323 *) Support for single pass processing for S/MIME signing. This now
324 means that S/MIME signing can be done from a pipe, in addition
325 cleartext signing (multipart/signed type) is effectively streaming
326 and the signed data does not need to be all held in memory.
328 This is done with a new flag PKCS7_STREAM. When this flag is set
329 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
330 is done after the data is output (and digests calculated) in
334 *) Add full support for -rpath/-R, both in shared libraries and
335 applications, at least on the platforms where it's known how
339 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
340 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
341 will now compute a table of multiples of the generator that
342 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
343 faster (notably in the case of a single point multiplication,
345 [Nils Larsch, Bodo Moeller]
347 *) IPv6 support for certificate extensions. The various extensions
348 which use the IP:a.b.c.d can now take IPv6 addresses using the
349 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
353 *) Added an ENGINE that implements RSA by performing private key
354 exponentiations with the GMP library. The conversions to and from
355 GMP's mpz_t format aren't optimised nor are any montgomery forms
356 cached, and on x86 it appears OpenSSL's own performance has caught up.
357 However there are likely to be other architectures where GMP could
358 provide a boost. This ENGINE is not built in by default, but it can be
359 specified at Configure time and should be accompanied by the necessary
360 linker additions, eg;
361 ./config -DOPENSSL_USE_GMP -lgmp
364 *) "openssl engine" will not display ENGINE/DSO load failure errors when
365 testing availability of engines with "-t" - the old behaviour is
366 produced by increasing the feature's verbosity with "-tt".
369 *) ECDSA routines: under certain error conditions uninitialized BN objects
370 could be freed. Solution: make sure initialization is performed early
371 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
375 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
376 and DH_METHOD (eg. by ENGINE implementations) to override the normal
377 software implementations. For DSA and DH, parameter generation can
378 also be overriden by providing the appropriate method callbacks.
381 *) Change the "progress" mechanism used in key-generation and
382 primality testing to functions that take a new BN_GENCB pointer in
383 place of callback/argument pairs. The new API functions have "_ex"
384 postfixes and the older functions are reimplemented as wrappers for
385 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
386 declarations of the old functions to help (graceful) attempts to
387 migrate to the new functions. Also, the new key-generation API
388 functions operate on a caller-supplied key-structure and return
389 success/failure rather than returning a key or NULL - this is to
390 help make "keygen" another member function of RSA_METHOD etc.
392 Example for using the new callback interface:
394 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
398 BN_GENCB_set(&my_cb, my_callback, my_arg);
400 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
401 /* For the meaning of a, b in calls to my_callback(), see the
402 * documentation of the function that calls the callback.
403 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
404 * my_callback should return 1 if it wants BN_is_prime_ex()
405 * to continue, or 0 to stop.
410 *) Change the ZLIB compression method to be stateful, and make it
411 available to TLS with the number defined in
412 draft-ietf-tls-compression-04.txt.
415 *) Add the ASN.1 structures and functions for CertificatePair, which
416 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
418 CertificatePair ::= SEQUENCE {
419 forward [0] Certificate OPTIONAL,
420 reverse [1] Certificate OPTIONAL,
421 -- at least one of the pair shall be present -- }
423 Also implement the PEM functions to read and write certificate
424 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
426 This needed to be defined, mostly for the sake of the LDAP
427 attribute crossCertificatePair, but may prove useful elsewhere as
431 *) Make it possible to inhibit symlinking of shared libraries in
432 Makefile.shared, for Cygwin's sake.
435 *) Extend the BIGNUM API by creating new macros that behave like
438 void BN_set_sign(BIGNUM *a, int neg);
439 int BN_get_sign(const BIGNUM *a);
441 and avoid the need to access 'a->neg' directly in applications.
442 [Nils Larsch <nla@trustcenter.de>]
444 *) Implement fast modular reduction for pseudo-Mersenne primes
445 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
446 EC_GROUP_new_curve_GFp() will now automatically use this
448 [Nils Larsch <nla@trustcenter.de>]
450 *) Add new lock type (CRYPTO_LOCK_BN).
453 *) Change the ENGINE framework to automatically load engines
454 dynamically from specific directories unless they could be
455 found to already be built in or loaded. Move all the
456 current engines except for the cryptodev one to a new
458 The engines in engines/ are built as shared libraries if
459 the "shared" options was given to ./Configure or ./config.
460 Otherwise, they are inserted in libcrypto.a.
461 /usr/local/ssl/engines is the default directory for dynamic
462 engines, but that can be overriden at configure time through
463 the usual use of --prefix and/or --openssldir, and at run
464 time with the environment variable OPENSSL_ENGINES.
465 [Geoff Thorpe and Richard Levitte]
467 *) Add Makefile.shared, a helper makefile to build shared
468 libraries. Addapt Makefile.org.
471 *) Add version info to Win32 DLLs.
472 [Peter 'Luna' Runestig" <peter@runestig.com>]
474 *) Add new 'medium level' PKCS#12 API. Certificates and keys
475 can be added using this API to created arbitrary PKCS#12
476 files while avoiding the low level API.
478 New options to PKCS12_create(), key or cert can be NULL and
479 will then be omitted from the output file. The encryption
480 algorithm NIDs can be set to -1 for no encryption, the mac
481 iteration count can be set to 0 to omit the mac.
483 Enhance pkcs12 utility by making the -nokeys and -nocerts
484 options work when creating a PKCS#12 file. New option -nomac
485 to omit the mac, NONE can be set for an encryption algorithm.
486 New code is modified to use the enhanced PKCS12_create()
487 instead of the low level API.
490 *) Extend ASN1 encoder to support indefinite length constructed
491 encoding. This can output sequences tags and octet strings in
492 this form. Modify pk7_asn1.c to support indefinite length
493 encoding. This is experimental and needs additional code to
494 be useful, such as an ASN1 bio and some enhanced streaming
497 Extend template encode functionality so that tagging is passed
498 down to the template encoder.
501 *) Let 'openssl req' fail if an argument to '-newkey' is not
502 recognized instead of using RSA as a default.
505 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
506 As these are not official, they are not included in "ALL";
507 the "ECCdraft" ciphersuite group alias can be used to select them.
508 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
510 *) Add ECDH engine support.
511 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
513 *) Add ECDH in new directory crypto/ecdh/.
514 [Douglas Stebila (Sun Microsystems Laboratories)]
516 *) Let BN_rand_range() abort with an error after 100 iterations
517 without success (which indicates a broken PRNG).
520 *) Change BN_mod_sqrt() so that it verifies that the input value
521 is really the square of the return value. (Previously,
522 BN_mod_sqrt would show GIGO behaviour.)
525 *) Add named elliptic curves over binary fields from X9.62, SECG,
526 and WAP/WTLS; add OIDs that were still missing.
528 [Sheueling Chang Shantz and Douglas Stebila
529 (Sun Microsystems Laboratories)]
531 *) Extend the EC library for elliptic curves over binary fields
532 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
535 EC_GF2m_simple_method
539 EC_GROUP_new_curve_GF2m
540 EC_GROUP_set_curve_GF2m
541 EC_GROUP_get_curve_GF2m
542 EC_POINT_set_affine_coordinates_GF2m
543 EC_POINT_get_affine_coordinates_GF2m
544 EC_POINT_set_compressed_coordinates_GF2m
546 Point compression for binary fields is disabled by default for
547 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
550 As binary polynomials are represented as BIGNUMs, various members
551 of the EC_GROUP and EC_POINT data structures can be shared
552 between the implementations for prime fields and binary fields;
553 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
554 are essentially identical to their ..._GFp counterparts.
555 (For simplicity, the '..._GFp' prefix has been dropped from
556 various internal method names.)
558 An internal 'field_div' method (similar to 'field_mul' and
559 'field_sqr') has been added; this is used only for binary fields.
561 [Sheueling Chang Shantz and Douglas Stebila
562 (Sun Microsystems Laboratories)]
564 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
565 through methods ('mul', 'precompute_mult').
567 The generic implementations (now internally called 'ec_wNAF_mul'
568 and 'ec_wNAF_precomputed_mult') remain the default if these
569 methods are undefined.
571 [Sheueling Chang Shantz and Douglas Stebila
572 (Sun Microsystems Laboratories)]
574 *) New function EC_GROUP_get_degree, which is defined through
575 EC_METHOD. For curves over prime fields, this returns the bit
576 length of the modulus.
578 [Sheueling Chang Shantz and Douglas Stebila
579 (Sun Microsystems Laboratories)]
581 *) New functions EC_GROUP_dup, EC_POINT_dup.
582 (These simply call ..._new and ..._copy).
584 [Sheueling Chang Shantz and Douglas Stebila
585 (Sun Microsystems Laboratories)]
587 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
588 Polynomials are represented as BIGNUMs (where the sign bit is not
589 used) in the following functions [macros]:
592 BN_GF2m_sub [= BN_GF2m_add]
593 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
594 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
595 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
597 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
598 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
599 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
600 BN_GF2m_cmp [= BN_ucmp]
602 (Note that only the 'mod' functions are actually for fields GF(2^m).
603 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
605 For some functions, an the irreducible polynomial defining a
606 field can be given as an 'unsigned int[]' with strictly
607 decreasing elements giving the indices of those bits that are set;
608 i.e., p[] represents the polynomial
609 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
611 p[0] > p[1] > ... > p[k] = 0.
612 This applies to the following functions:
617 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
618 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
621 BN_GF2m_mod_solve_quad_arr
625 Conversion can be performed by the following functions:
630 bntest.c has additional tests for binary polynomial arithmetic.
632 Two implementations for BN_GF2m_mod_div() are available.
633 The default algorithm simply uses BN_GF2m_mod_inv() and
634 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
635 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
636 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
638 [Sheueling Chang Shantz and Douglas Stebila
639 (Sun Microsystems Laboratories)]
641 *) Add new error code 'ERR_R_DISABLED' that can be used when some
642 functionality is disabled at compile-time.
643 [Douglas Stebila <douglas.stebila@sun.com>]
645 *) Change default behaviour of 'openssl asn1parse' so that more
646 information is visible when viewing, e.g., a certificate:
648 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
649 mode the content of non-printable OCTET STRINGs is output in a
650 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
651 avoid the appearance of a printable string.
652 [Nils Larsch <nla@trustcenter.de>]
654 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
656 EC_GROUP_set_asn1_flag()
657 EC_GROUP_get_asn1_flag()
658 EC_GROUP_set_point_conversion_form()
659 EC_GROUP_get_point_conversion_form()
660 These control ASN1 encoding details:
661 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
662 has been set to OPENSSL_EC_NAMED_CURVE.
663 - Points are encoded in uncompressed form by default; options for
664 asn1_for are as for point2oct, namely
665 POINT_CONVERSION_COMPRESSED
666 POINT_CONVERSION_UNCOMPRESSED
667 POINT_CONVERSION_HYBRID
669 Also add 'seed' and 'seed_len' members to EC_GROUP with access
673 EC_GROUP_get_seed_len()
674 This is used only for ASN1 purposes (so far).
675 [Nils Larsch <nla@trustcenter.de>]
677 *) Add 'field_type' member to EC_METHOD, which holds the NID
678 of the appropriate field type OID. The new function
679 EC_METHOD_get_field_type() returns this value.
680 [Nils Larsch <nla@trustcenter.de>]
687 providing useful interfaces to EC_POINT_point2oct() and
688 EC_POINT_oct2point().
689 [Nils Larsch <nla@trustcenter.de>]
691 *) Change internals of the EC library so that the functions
692 EC_GROUP_set_generator()
693 EC_GROUP_get_generator()
695 EC_GROUP_get_cofactor()
696 are implemented directly in crypto/ec/ec_lib.c and not dispatched
697 to methods, which would lead to unnecessary code duplication when
698 adding different types of curves.
699 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
701 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
702 arithmetic, and such that modified wNAFs are generated
703 (which avoid length expansion in many cases).
706 *) Add a function EC_GROUP_check_discriminant() (defined via
707 EC_METHOD) that verifies that the curve discriminant is non-zero.
709 Add a function EC_GROUP_check() that makes some sanity tests
710 on a EC_GROUP, its generator and order. This includes
711 EC_GROUP_check_discriminant().
712 [Nils Larsch <nla@trustcenter.de>]
714 *) Add ECDSA in new directory crypto/ecdsa/.
716 Add applications 'openssl ecparam' and 'openssl ecdsa'
717 (these are based on 'openssl dsaparam' and 'openssl dsa').
719 ECDSA support is also included in various other files across the
720 library. Most notably,
721 - 'openssl req' now has a '-newkey ecdsa:file' option;
722 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
723 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
724 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
725 them suitable for ECDSA where domain parameters must be
726 extracted before the specific public key;
727 - ECDSA engine support has been added.
728 [Nils Larsch <nla@trustcenter.de>]
730 *) Include some named elliptic curves, and add OIDs from X9.62,
731 SECG, and WAP/WTLS. Each curve can be obtained from the new
733 EC_GROUP_new_by_nid(),
734 and the list of available named curves can be obtained with
735 EC_get_builtin_curves().
736 Also add a 'curve_name' member to EC_GROUP objects, which can be
740 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
742 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
743 was actually never needed) and in BN_mul(). The removal in BN_mul()
744 required a small change in bn_mul_part_recursive() and the addition
745 of the functions bn_cmp_part_words(), bn_sub_part_words() and
746 bn_add_part_words(), which do the same thing as bn_cmp_words(),
747 bn_sub_words() and bn_add_words() except they take arrays with
751 Changes between 0.9.7e and 0.9.7f [XX xxx XXXX]
753 *) Add lots of checks for memory allocation failure, error codes to indicate
754 failure and freeing up memory if a failure occurs.
755 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
757 *) Add new -passin argument to dgst.
760 *) Perform some character comparisons of different types in X509_NAME_cmp:
761 this is needed for some certificates that reencode DNs into UTF8Strings
762 (in violation of RFC3280) and can't or wont issue name rollover
766 *) Make an explicit check during certificate validation to see that
767 the CA setting in each certificate on the chain is correct. As a
768 side effect always do the following basic checks on extensions,
769 not just when there's an associated purpose to the check:
771 - if there is an unhandled critical extension (unless the user
772 has chosen to ignore this fault)
773 - if the path length has been exceeded (if one is set at all)
774 - that certain extensions fit the associated purpose (if one has
778 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
780 *) Avoid a race condition when CRLs are checked in a multi threaded
781 environment. This would happen due to the reordering of the revoked
782 entries during signature checking and serial number lookup. Now the
783 encoding is cached and the serial number sort performed under a lock.
784 Add new STACK function sk_is_sorted().
787 *) Add Delta CRL to the extension code.
790 *) Various fixes to s3_pkt.c so alerts are sent properly.
791 [David Holmes <d.holmes@f5.com>]
793 *) Reduce the chances of duplicate issuer name and serial numbers (in
794 violation of RFC3280) using the OpenSSL certificate creation utilities.
795 This is done by creating a random 64 bit value for the initial serial
796 number when a serial number file is created or when a self signed
797 certificate is created using 'openssl req -x509'. The initial serial
798 number file is created using 'openssl x509 -next_serial' in CA.pl
799 rather than being initialized to 1.
802 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
804 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
805 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
806 [Joe Orton, Steve Henson]
808 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
810 [Joe Orton, Steve Henson]
812 *) Make it possible to have multiple active certificates with the same
813 subject in the CA index file. This is done only if the keyword
814 'unique_subject' is set to 'no' in the main CA section (default
815 if 'CA_default') of the configuration file. The value is saved
816 with the database itself in a separate index attribute file,
817 named like the index file with '.attr' appended to the name.
820 *) X509 verify fixes. Disable broken certificate workarounds when
821 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
822 keyUsage extension present. Don't accept CRLs with unhandled critical
823 extensions: since verify currently doesn't process CRL extensions this
824 rejects a CRL with *any* critical extensions. Add new verify error codes
828 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
829 A clarification of RFC2560 will require the use of OCTET STRINGs and
830 some implementations cannot handle the current raw format. Since OpenSSL
831 copies and compares OCSP nonces as opaque blobs without any attempt at
832 parsing them this should not create any compatibility issues.
835 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
836 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
837 this HMAC (and other) operations are several times slower than OpenSSL
841 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
842 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
844 *) Use the correct content when signing type "other".
847 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
849 *) Fix various bugs revealed by running the NISCC test suite:
851 Stop out of bounds reads in the ASN1 code when presented with
852 invalid tags (CAN-2003-0543 and CAN-2003-0544).
854 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
856 If verify callback ignores invalid public key errors don't try to check
857 certificate signature with the NULL public key.
861 *) New -ignore_err option in ocsp application to stop the server
862 exiting on the first error in a request.
865 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
866 if the server requested one: as stated in TLS 1.0 and SSL 3.0
870 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
871 extra data after the compression methods not only for TLS 1.0
872 but also for SSL 3.0 (as required by the specification).
873 [Bodo Moeller; problem pointed out by Matthias Loepfe]
875 *) Change X509_certificate_type() to mark the key as exported/exportable
876 when it's 512 *bits* long, not 512 bytes.
879 *) Change AES_cbc_encrypt() so it outputs exact multiple of
880 blocks during encryption.
883 *) Various fixes to base64 BIO and non blocking I/O. On write
884 flushes were not handled properly if the BIO retried. On read
885 data was not being buffered properly and had various logic bugs.
886 This also affects blocking I/O when the data being decoded is a
890 *) Various S/MIME bugfixes and compatibility changes:
891 output correct application/pkcs7 MIME type if
892 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
893 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
894 of files as .eml work). Correctly handle very long lines in MIME
898 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
900 *) Countermeasure against the Klima-Pokorny-Rosa extension of
901 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
902 a protocol version number mismatch like a decryption error
903 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
906 *) Turn on RSA blinding by default in the default implementation
907 to avoid a timing attack. Applications that don't want it can call
908 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
909 They would be ill-advised to do so in most cases.
910 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
912 *) Change RSA blinding code so that it works when the PRNG is not
913 seeded (in this case, the secret RSA exponent is abused as
914 an unpredictable seed -- if it is not unpredictable, there
915 is no point in blinding anyway). Make RSA blinding thread-safe
916 by remembering the creator's thread ID in rsa->blinding and
917 having all other threads use local one-time blinding factors
918 (this requires more computation than sharing rsa->blinding, but
919 avoids excessive locking; and if an RSA object is not shared
920 between threads, blinding will still be very fast).
923 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
924 ENGINE as defaults for all supported algorithms irrespective of
925 the 'flags' parameter. 'flags' is now honoured, so applications
926 should make sure they are passing it correctly.
929 *) Target "mingw" now allows native Windows code to be generated in
930 the Cygwin environment as well as with the MinGW compiler.
933 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
935 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
936 via timing by performing a MAC computation even if incorrrect
937 block cipher padding has been found. This is a countermeasure
938 against active attacks where the attacker has to distinguish
939 between bad padding and a MAC verification error. (CAN-2003-0078)
941 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
942 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
943 Martin Vuagnoux (EPFL, Ilion)]
945 *) Make the no-err option work as intended. The intention with no-err
946 is not to have the whole error stack handling routines removed from
947 libcrypto, it's only intended to remove all the function name and
948 reason texts, thereby removing some of the footprint that may not
949 be interesting if those errors aren't displayed anyway.
951 NOTE: it's still possible for any application or module to have it's
952 own set of error texts inserted. The routines are there, just not
953 used by default when no-err is given.
956 *) Add support for FreeBSD on IA64.
957 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
959 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
960 Kerberos function mit_des_cbc_cksum(). Before this change,
961 the value returned by DES_cbc_cksum() was like the one from
962 mit_des_cbc_cksum(), except the bytes were swapped.
963 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
965 *) Allow an application to disable the automatic SSL chain building.
966 Before this a rather primitive chain build was always performed in
967 ssl3_output_cert_chain(): an application had no way to send the
968 correct chain if the automatic operation produced an incorrect result.
970 Now the chain builder is disabled if either:
972 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
974 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
976 The reasoning behind this is that an application would not want the
977 auto chain building to take place if extra chain certificates are
978 present and it might also want a means of sending no additional
979 certificates (for example the chain has two certificates and the
983 *) Add the possibility to build without the ENGINE framework.
984 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
986 *) Under Win32 gmtime() can return NULL: check return value in
987 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
990 *) DSA routines: under certain error conditions uninitialized BN objects
991 could be freed. Solution: make sure initialization is performed early
992 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
993 Nils Larsch <nla@trustcenter.de> via PR#459)
996 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
997 checked on reconnect on the client side, therefore session resumption
998 could still fail with a "ssl session id is different" error. This
999 behaviour is masked when SSL_OP_ALL is used due to
1000 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1001 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1002 followup to PR #377.
1005 *) IA-32 assembler support enhancements: unified ELF targets, support
1006 for SCO/Caldera platforms, fix for Cygwin shared build.
1009 *) Add support for FreeBSD on sparc64. As a consequence, support for
1010 FreeBSD on non-x86 processors is separate from x86 processors on
1011 the config script, much like the NetBSD support.
1012 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1014 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1016 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1019 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1020 code (06) was taken as the first octet of the session ID and the last
1021 octet was ignored consequently. As a result SSLv2 client side session
1022 caching could not have worked due to the session ID mismatch between
1024 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1028 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1029 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1033 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1034 seems that in spite of existing for more than a year, many application
1035 author have done nothing to provide the necessary callbacks, which
1036 means that this particular engine will not work properly anywhere.
1037 This is a very unfortunate situation which forces us, in the name
1038 of usability, to give the hw_ncipher.c a static lock, which is part
1040 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1041 appear in 0.9.8 or later. We EXPECT application authors to have
1042 dealt properly with this when 0.9.8 is released (unless we actually
1043 make such changes in the libcrypto locking code that changes will
1044 have to be made anyway).
1047 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1048 octets have been read, EOF or an error occurs. Without this change
1049 some truncated ASN1 structures will not produce an error.
1052 *) Disable Heimdal support, since it hasn't been fully implemented.
1053 Still give the possibility to force the use of Heimdal, but with
1054 warnings and a request that patches get sent to openssl-dev.
1057 *) Add the VC-CE target, introduce the WINCE sysname, and add
1058 INSTALL.WCE and appropriate conditionals to make it build.
1059 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1061 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1062 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1063 edit numbers of the version.
1064 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1066 *) Introduce safe string copy and catenation functions
1067 (BUF_strlcpy() and BUF_strlcat()).
1068 [Ben Laurie (CHATS) and Richard Levitte]
1070 *) Avoid using fixed-size buffers for one-line DNs.
1071 [Ben Laurie (CHATS)]
1073 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1074 resizing buffers containing secrets, and use where appropriate.
1075 [Ben Laurie (CHATS)]
1077 *) Avoid using fixed size buffers for configuration file location.
1078 [Ben Laurie (CHATS)]
1080 *) Avoid filename truncation for various CA files.
1081 [Ben Laurie (CHATS)]
1083 *) Use sizeof in preference to magic numbers.
1084 [Ben Laurie (CHATS)]
1086 *) Avoid filename truncation in cert requests.
1087 [Ben Laurie (CHATS)]
1089 *) Add assertions to check for (supposedly impossible) buffer
1091 [Ben Laurie (CHATS)]
1093 *) Don't cache truncated DNS entries in the local cache (this could
1094 potentially lead to a spoofing attack).
1095 [Ben Laurie (CHATS)]
1097 *) Fix various buffers to be large enough for hex/decimal
1098 representations in a platform independent manner.
1099 [Ben Laurie (CHATS)]
1101 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1102 resizing buffers containing secrets, and use where appropriate.
1103 [Ben Laurie (CHATS)]
1105 *) Add BIO_indent() to avoid much slightly worrying code to do
1107 [Ben Laurie (CHATS)]
1109 *) Convert sprintf()/BIO_puts() to BIO_printf().
1110 [Ben Laurie (CHATS)]
1112 *) buffer_gets() could terminate with the buffer only half
1114 [Ben Laurie (CHATS)]
1116 *) Add assertions to prevent user-supplied crypto functions from
1117 overflowing internal buffers by having large block sizes, etc.
1118 [Ben Laurie (CHATS)]
1120 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1122 [Ben Laurie (CHATS)]
1124 *) Eliminate unused copy of key in RC4.
1125 [Ben Laurie (CHATS)]
1127 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1128 [Ben Laurie (CHATS)]
1130 *) Fix off-by-one error in EGD path.
1131 [Ben Laurie (CHATS)]
1133 *) If RANDFILE path is too long, ignore instead of truncating.
1134 [Ben Laurie (CHATS)]
1136 *) Eliminate unused and incorrectly sized X.509 structure
1138 [Ben Laurie (CHATS)]
1140 *) Eliminate unused and dangerous function knumber().
1141 [Ben Laurie (CHATS)]
1143 *) Eliminate unused and dangerous structure, KSSL_ERR.
1144 [Ben Laurie (CHATS)]
1146 *) Protect against overlong session ID context length in an encoded
1147 session object. Since these are local, this does not appear to be
1149 [Ben Laurie (CHATS)]
1151 *) Change from security patch (see 0.9.6e below) that did not affect
1152 the 0.9.6 release series:
1154 Remote buffer overflow in SSL3 protocol - an attacker could
1155 supply an oversized master key in Kerberos-enabled versions.
1157 [Ben Laurie (CHATS)]
1159 *) Change the SSL kerb5 codes to match RFC 2712.
1162 *) Make -nameopt work fully for req and add -reqopt switch.
1163 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1165 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1166 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1168 *) Make sure tests can be performed even if the corresponding algorithms
1169 have been removed entirely. This was also the last step to make
1170 OpenSSL compilable with DJGPP under all reasonable conditions.
1171 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1173 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1174 to allow version independent disabling of normally unselected ciphers,
1175 which may be activated as a side-effect of selecting a single cipher.
1177 (E.g., cipher list string "RSA" enables ciphersuites that are left
1178 out of "ALL" because they do not provide symmetric encryption.
1179 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1180 [Lutz Jaenicke, Bodo Moeller]
1182 *) Add appropriate support for separate platform-dependent build
1183 directories. The recommended way to make a platform-dependent
1184 build directory is the following (tested on Linux), maybe with
1187 # Place yourself outside of the OpenSSL source tree. In
1188 # this example, the environment variable OPENSSL_SOURCE
1189 # is assumed to contain the absolute OpenSSL source directory.
1190 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1191 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1192 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1193 mkdir -p `dirname $F`
1194 ln -s $OPENSSL_SOURCE/$F $F
1197 To be absolutely sure not to disturb the source tree, a "make clean"
1198 is a good thing. If it isn't successfull, don't worry about it,
1199 it probably means the source directory is very clean.
1202 *) Make sure any ENGINE control commands make local copies of string
1203 pointers passed to them whenever necessary. Otherwise it is possible
1204 the caller may have overwritten (or deallocated) the original string
1205 data when a later ENGINE operation tries to use the stored values.
1206 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1208 *) Improve diagnostics in file reading and command-line digests.
1209 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1211 *) Add AES modes CFB and OFB to the object database. Correct an
1212 error in AES-CFB decryption.
1215 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1216 allows existing EVP_CIPHER_CTX structures to be reused after
1217 calling EVP_*Final(). This behaviour is used by encryption
1218 BIOs and some applications. This has the side effect that
1219 applications must explicitly clean up cipher contexts with
1220 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1223 *) Check the values of dna and dnb in bn_mul_recursive before calling
1224 bn_mul_comba (a non zero value means the a or b arrays do not contain
1225 n2 elements) and fallback to bn_mul_normal if either is not zero.
1228 *) Fix escaping of non-ASCII characters when using the -subj option
1229 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1232 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1233 form for "surname", serialNumber has no short form.
1234 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1235 therefore remove "mail" short name for "internet 7".
1236 The OID for unique identifiers in X509 certificates is
1237 x500UniqueIdentifier, not uniqueIdentifier.
1238 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1241 *) Add an "init" command to the ENGINE config module and auto initialize
1242 ENGINEs. Without any "init" command the ENGINE will be initialized
1243 after all ctrl commands have been executed on it. If init=1 the
1244 ENGINE is initailized at that point (ctrls before that point are run
1245 on the uninitialized ENGINE and after on the initialized one). If
1246 init=0 then the ENGINE will not be iniatialized at all.
1249 *) Fix the 'app_verify_callback' interface so that the user-defined
1250 argument is actually passed to the callback: In the
1251 SSL_CTX_set_cert_verify_callback() prototype, the callback
1252 declaration has been changed from
1255 int (*cb)(X509_STORE_CTX *,void *);
1256 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1257 i=s->ctx->app_verify_callback(&ctx)
1258 has been changed into
1259 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1261 To update applications using SSL_CTX_set_cert_verify_callback(),
1262 a dummy argument can be added to their callback functions.
1263 [D. K. Smetters <smetters@parc.xerox.com>]
1265 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1266 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1268 *) Add and OPENSSL_LOAD_CONF define which will cause
1269 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1270 This allows older applications to transparently support certain
1271 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1272 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1273 load the config file and OPENSSL_add_all_algorithms_conf() which will
1274 always load it have also been added.
1277 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1278 Adjust NIDs and EVP layer.
1279 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1281 *) Config modules support in openssl utility.
1283 Most commands now load modules from the config file,
1284 though in a few (such as version) this isn't done
1285 because it couldn't be used for anything.
1287 In the case of ca and req the config file used is
1288 the same as the utility itself: that is the -config
1289 command line option can be used to specify an
1293 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1294 use "openssl_conf" if filename is NULL use default openssl config file.
1297 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1298 config section name. Add a new flag to tolerate a missing config file
1299 and move code to CONF_modules_load_file().
1302 *) Support for crypto accelerator cards from Accelerated Encryption
1303 Processing, www.aep.ie. (Use engine 'aep')
1304 The support was copied from 0.9.6c [engine] and adapted/corrected
1305 to work with the new engine framework.
1306 [AEP Inc. and Richard Levitte]
1308 *) Support for SureWare crypto accelerator cards from Baltimore
1309 Technologies. (Use engine 'sureware')
1310 The support was copied from 0.9.6c [engine] and adapted
1311 to work with the new engine framework.
1314 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1315 make the newer ENGINE framework commands for the CHIL engine work.
1316 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1318 *) Make it possible to produce shared libraries on ReliantUNIX.
1319 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1321 *) Add the configuration target debug-linux-ppro.
1322 Make 'openssl rsa' use the general key loading routines
1323 implemented in apps.c, and make those routines able to
1324 handle the key format FORMAT_NETSCAPE and the variant
1326 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1328 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1329 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1331 *) Add -keyform to rsautl, and document -engine.
1332 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1334 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1335 BIO_R_NO_SUCH_FILE error code rather than the generic
1336 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1339 *) Add new functions
1341 ERR_peek_last_error_line
1342 ERR_peek_last_error_line_data.
1343 These are similar to
1346 ERR_peek_error_line_data,
1347 but report on the latest error recorded rather than the first one
1348 still in the error queue.
1349 [Ben Laurie, Bodo Moeller]
1351 *) default_algorithms option in ENGINE config module. This allows things
1353 default_algorithms = ALL
1354 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1357 *) Prelminary ENGINE config module.
1360 *) New experimental application configuration code.
1363 *) Change the AES code to follow the same name structure as all other
1364 symmetric ciphers, and behave the same way. Move everything to
1365 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1366 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1368 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1369 [Ben Laurie and Theo de Raadt]
1371 *) Add option to output public keys in req command.
1372 [Massimiliano Pala madwolf@openca.org]
1374 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1375 (up to about 10% better than before for P-192 and P-224).
1378 *) New functions/macros
1380 SSL_CTX_set_msg_callback(ctx, cb)
1381 SSL_CTX_set_msg_callback_arg(ctx, arg)
1382 SSL_set_msg_callback(ssl, cb)
1383 SSL_set_msg_callback_arg(ssl, arg)
1385 to request calling a callback function
1387 void cb(int write_p, int version, int content_type,
1388 const void *buf, size_t len, SSL *ssl, void *arg)
1390 whenever a protocol message has been completely received
1391 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1392 protocol version according to which the SSL library interprets
1393 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1394 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1395 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1396 specification (change_cipher_spec(20), alert(21), handshake(22)).
1397 'buf' and 'len' point to the actual message, 'ssl' to the
1398 SSL object, and 'arg' is the application-defined value set by
1399 SSL[_CTX]_set_msg_callback_arg().
1401 'openssl s_client' and 'openssl s_server' have new '-msg' options
1402 to enable a callback that displays all protocol messages.
1405 *) Change the shared library support so shared libraries are built as
1406 soon as the corresponding static library is finished, and thereby get
1407 openssl and the test programs linked against the shared library.
1408 This still only happens when the keyword "shard" has been given to
1409 the configuration scripts.
1411 NOTE: shared library support is still an experimental thing, and
1412 backward binary compatibility is still not guaranteed.
1413 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1415 *) Add support for Subject Information Access extension.
1416 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1418 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1419 additional bytes when new memory had to be allocated, not just
1420 when reusing an existing buffer.
1423 *) New command line and configuration option 'utf8' for the req command.
1424 This allows field values to be specified as UTF8 strings.
1427 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1428 runs for the former and machine-readable output for the latter.
1431 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1432 of the e-mail address in the DN (i.e., it will go into a certificate
1433 extension only). The new configuration file option 'email_in_dn = no'
1434 has the same effect.
1435 [Massimiliano Pala madwolf@openca.org]
1437 *) Change all functions with names starting with des_ to be starting
1438 with DES_ instead. Add wrappers that are compatible with libdes,
1439 but are named _ossl_old_des_*. Finally, add macros that map the
1440 des_* symbols to the corresponding _ossl_old_des_* if libdes
1441 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1442 desired, the des_* symbols will be mapped to DES_*, with one
1445 Since we provide two compatibility mappings, the user needs to
1446 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1447 compatibility is desired. The default (i.e., when that macro
1448 isn't defined) is OpenSSL 0.9.6c compatibility.
1450 There are also macros that enable and disable the support of old
1451 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1452 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1453 are defined, the default will apply: to support the old des routines.
1455 In either case, one must include openssl/des.h to get the correct
1456 definitions. Do not try to just include openssl/des_old.h, that
1459 NOTE: This is a major break of an old API into a new one. Software
1460 authors are encouraged to switch to the DES_ style functions. Some
1461 time in the future, des_old.h and the libdes compatibility functions
1462 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1463 default), and then completely removed.
1466 *) Test for certificates which contain unsupported critical extensions.
1467 If such a certificate is found during a verify operation it is
1468 rejected by default: this behaviour can be overridden by either
1469 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1470 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1471 X509_supported_extension() has also been added which returns 1 if a
1472 particular extension is supported.
1475 *) Modify the behaviour of EVP cipher functions in similar way to digests
1476 to retain compatibility with existing code.
1479 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1480 compatibility with existing code. In particular the 'ctx' parameter does
1481 not have to be to be initialized before the call to EVP_DigestInit() and
1482 it is tidied up after a call to EVP_DigestFinal(). New function
1483 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1484 EVP_MD_CTX_copy() changed to not require the destination to be
1485 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1486 requires the destination to be valid.
1488 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1489 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1492 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1493 so that complete 'Handshake' protocol structures are kept in memory
1494 instead of overwriting 'msg_type' and 'length' with 'body' data.
1497 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1498 [Massimo Santin via Richard Levitte]
1500 *) Major restructuring to the underlying ENGINE code. This includes
1501 reduction of linker bloat, separation of pure "ENGINE" manipulation
1502 (initialisation, etc) from functionality dealing with implementations
1503 of specific crypto iterfaces. This change also introduces integrated
1504 support for symmetric ciphers and digest implementations - so ENGINEs
1505 can now accelerate these by providing EVP_CIPHER and EVP_MD
1506 implementations of their own. This is detailed in crypto/engine/README
1507 as it couldn't be adequately described here. However, there are a few
1508 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1509 were changed in the original introduction of ENGINE code have now
1510 reverted back - the hooking from this code to ENGINE is now a good
1511 deal more passive and at run-time, operations deal directly with
1512 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1513 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1514 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1515 they were not being used by the framework as there is no concept of a
1516 BIGNUM_METHOD and they could not be generalised to the new
1517 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1518 ENGINE_cpy() has been removed as it cannot be consistently defined in
1522 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1525 *) Change mkdef.pl to sort symbols that get the same entry number,
1526 and make sure the automatically generated functions ERR_load_*
1527 become part of libeay.num as well.
1530 *) New function SSL_renegotiate_pending(). This returns true once
1531 renegotiation has been requested (either SSL_renegotiate() call
1532 or HelloRequest/ClientHello receveived from the peer) and becomes
1533 false once a handshake has been completed.
1534 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1535 sends a HelloRequest, but does not ensure that a handshake takes
1536 place. SSL_renegotiate_pending() is useful for checking if the
1537 client has followed the request.)
1540 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1541 By default, clients may request session resumption even during
1542 renegotiation (if session ID contexts permit); with this option,
1543 session resumption is possible only in the first handshake.
1545 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1546 more bits available for options that should not be part of
1547 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1550 *) Add some demos for certificate and certificate request creation.
1553 *) Make maximum certificate chain size accepted from the peer application
1554 settable (SSL*_get/set_max_cert_list()), as proposed by
1555 "Douglas E. Engert" <deengert@anl.gov>.
1558 *) Add support for shared libraries for Unixware-7
1559 (Boyd Lynn Gerber <gerberb@zenez.com>).
1562 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1563 be done prior to destruction. Use this to unload error strings from
1564 ENGINEs that load their own error strings. NB: This adds two new API
1565 functions to "get" and "set" this destroy handler in an ENGINE.
1568 *) Alter all existing ENGINE implementations (except "openssl" and
1569 "openbsd") to dynamically instantiate their own error strings. This
1570 makes them more flexible to be built both as statically-linked ENGINEs
1571 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1572 Also, add stub code to each that makes building them as self-contained
1573 shared-libraries easier (see README.ENGINE).
1576 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1577 implementations into applications that are completely implemented in
1578 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1579 commands that can be used to configure what shared-library to load and
1580 to control aspects of the way it is handled. Also, made an update to
1581 the README.ENGINE file that brings its information up-to-date and
1582 provides some information and instructions on the "dynamic" ENGINE
1583 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1586 *) Make it possible to unload ranges of ERR strings with a new
1587 "ERR_unload_strings" function.
1590 *) Add a copy() function to EVP_MD.
1593 *) Make EVP_MD routines take a context pointer instead of just the
1594 md_data void pointer.
1597 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1598 that the digest can only process a single chunk of data
1599 (typically because it is provided by a piece of
1600 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1601 is only going to provide a single chunk of data, and hence the
1602 framework needn't accumulate the data for oneshot drivers.
1605 *) As with "ERR", make it possible to replace the underlying "ex_data"
1606 functions. This change also alters the storage and management of global
1607 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1608 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1609 index counters. The API functions that use this state have been changed
1610 to take a "class_index" rather than pointers to the class's local STACK
1611 and counter, and there is now an API function to dynamically create new
1612 classes. This centralisation allows us to (a) plug a lot of the
1613 thread-safety problems that existed, and (b) makes it possible to clean
1614 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1615 such data would previously have always leaked in application code and
1616 workarounds were in place to make the memory debugging turn a blind eye
1617 to it. Application code that doesn't use this new function will still
1618 leak as before, but their memory debugging output will announce it now
1619 rather than letting it slide.
1621 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1622 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1623 has a return value to indicate success or failure.
1626 *) Make it possible to replace the underlying "ERR" functions such that the
1627 global state (2 LHASH tables and 2 locks) is only used by the "default"
1628 implementation. This change also adds two functions to "get" and "set"
1629 the implementation prior to it being automatically set the first time
1630 any other ERR function takes place. Ie. an application can call "get",
1631 pass the return value to a module it has just loaded, and that module
1632 can call its own "set" function using that value. This means the
1633 module's "ERR" operations will use (and modify) the error state in the
1634 application and not in its own statically linked copy of OpenSSL code.
1637 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1638 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1639 the operation, and provides a more encapsulated way for external code
1640 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1641 to use these functions rather than manually incrementing the counts.
1643 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1646 *) Add EVP test program.
1649 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1652 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1653 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1654 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1655 These allow a CRL to be built without having to access X509_CRL fields
1656 directly. Modify 'ca' application to use new functions.
1659 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1660 bug workarounds. Rollback attack detection is a security feature.
1661 The problem will only arise on OpenSSL servers when TLSv1 is not
1662 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1663 Software authors not wanting to support TLSv1 will have special reasons
1664 for their choice and can explicitly enable this option.
1665 [Bodo Moeller, Lutz Jaenicke]
1667 *) Rationalise EVP so it can be extended: don't include a union of
1668 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1669 (similar to those existing for EVP_CIPHER_CTX).
1674 EVP_MD_CTX_init(&md); /* new function call */
1675 EVP_DigestInit(&md, EVP_sha1());
1676 EVP_DigestUpdate(&md, in, len);
1677 EVP_DigestFinal(&md, out, NULL);
1678 EVP_MD_CTX_cleanup(&md); /* new function call */
1682 *) Make DES key schedule conform to the usual scheme, as well as
1683 correcting its structure. This means that calls to DES functions
1684 now have to pass a pointer to a des_key_schedule instead of a
1685 plain des_key_schedule (which was actually always a pointer
1688 des_key_schedule ks;
1690 des_set_key_checked(..., &ks);
1691 des_ncbc_encrypt(..., &ks, ...);
1693 (Note that a later change renames 'des_...' into 'DES_...'.)
1696 *) Initial reduction of linker bloat: the use of some functions, such as
1697 PEM causes large amounts of unused functions to be linked in due to
1698 poor organisation. For example pem_all.c contains every PEM function
1699 which has a knock on effect of linking in large amounts of (unused)
1700 ASN1 code. Grouping together similar functions and splitting unrelated
1701 functions prevents this.
1704 *) Cleanup of EVP macros.
1707 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1708 correct _ecb suffix.
1711 *) Add initial OCSP responder support to ocsp application. The
1712 revocation information is handled using the text based index
1713 use by the ca application. The responder can either handle
1714 requests generated internally, supplied in files (for example
1715 via a CGI script) or using an internal minimal server.
1718 *) Add configuration choices to get zlib compression for TLS.
1721 *) Changes to Kerberos SSL for RFC 2712 compliance:
1722 1. Implemented real KerberosWrapper, instead of just using
1723 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1724 2. Implemented optional authenticator field of KerberosWrapper.
1726 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1727 and authenticator structs; see crypto/krb5/.
1729 Generalized Kerberos calls to support multiple Kerberos libraries.
1730 [Vern Staats <staatsvr@asc.hpc.mil>,
1731 Jeffrey Altman <jaltman@columbia.edu>
1732 via Richard Levitte]
1734 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1735 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1736 values for each of the key sizes rather than having just
1737 parameters (and 'speed' generating keys each time).
1740 *) Speed up EVP routines.
1743 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1744 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1745 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1746 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1748 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1749 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1750 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1753 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1755 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1758 *) Added the OS2-EMX target.
1759 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1761 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1762 to support NCONF routines in extension code. New function CONF_set_nconf()
1763 to allow functions which take an NCONF to also handle the old LHASH
1764 structure: this means that the old CONF compatible routines can be
1765 retained (in particular wrt extensions) without having to duplicate the
1766 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1769 *) Enhance the general user interface with mechanisms for inner control
1770 and with possibilities to have yes/no kind of prompts.
1773 *) Change all calls to low level digest routines in the library and
1774 applications to use EVP. Add missing calls to HMAC_cleanup() and
1775 don't assume HMAC_CTX can be copied using memcpy().
1776 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1778 *) Add the possibility to control engines through control names but with
1779 arbitrary arguments instead of just a string.
1780 Change the key loaders to take a UI_METHOD instead of a callback
1781 function pointer. NOTE: this breaks binary compatibility with earlier
1782 versions of OpenSSL [engine].
1783 Adapt the nCipher code for these new conditions and add a card insertion
1787 *) Enhance the general user interface with mechanisms to better support
1788 dialog box interfaces, application-defined prompts, the possibility
1789 to use defaults (for example default passwords from somewhere else)
1790 and interrupts/cancellations.
1793 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1794 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1797 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1798 tidy up some unnecessarily weird code in 'sk_new()').
1799 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1801 *) Change the key loading routines for ENGINEs to use the same kind
1802 callback (pem_password_cb) as all other routines that need this
1806 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1807 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1808 than this minimum value is recommended.
1811 *) New random seeder for OpenVMS, using the system process statistics
1812 that are easily reachable.
1815 *) Windows apparently can't transparently handle global
1816 variables defined in DLLs. Initialisations such as:
1818 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1820 wont compile. This is used by the any applications that need to
1821 declare their own ASN1 modules. This was fixed by adding the option
1822 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1823 needed for static libraries under Win32.
1826 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1827 setting of purpose and trust fields. New X509_STORE trust and
1828 purpose functions and tidy up setting in other SSL functions.
1831 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1832 structure. These are inherited by X509_STORE_CTX when it is
1833 initialised. This allows various defaults to be set in the
1834 X509_STORE structure (such as flags for CRL checking and custom
1835 purpose or trust settings) for functions which only use X509_STORE_CTX
1836 internally such as S/MIME.
1838 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1839 trust settings if they are not set in X509_STORE. This allows X509_STORE
1840 purposes and trust (in S/MIME for example) to override any set by default.
1842 Add command line options for CRL checking to smime, s_client and s_server
1846 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1847 are set then the CRL is looked up in the X509_STORE structure and
1848 its validity and signature checked, then if the certificate is found
1849 in the CRL the verify fails with a revoked error.
1851 Various new CRL related callbacks added to X509_STORE_CTX structure.
1853 Command line options added to 'verify' application to support this.
1855 This needs some additional work, such as being able to handle multiple
1856 CRLs with different times, extension based lookup (rather than just
1857 by subject name) and ultimately more complete V2 CRL extension
1861 *) Add a general user interface API (crypto/ui/). This is designed
1862 to replace things like des_read_password and friends (backward
1863 compatibility functions using this new API are provided).
1864 The purpose is to remove prompting functions from the DES code
1865 section as well as provide for prompting through dialog boxes in
1866 a window system and the like.
1869 *) Add "ex_data" support to ENGINE so implementations can add state at a
1870 per-structure level rather than having to store it globally.
1873 *) Make it possible for ENGINE structures to be copied when retrieved by
1874 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1875 This causes the "original" ENGINE structure to act like a template,
1876 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1877 operational state can be localised to each ENGINE structure, despite the
1878 fact they all share the same "methods". New ENGINE structures returned in
1879 this case have no functional references and the return value is the single
1880 structural reference. This matches the single structural reference returned
1881 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1885 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1886 needs to match any other type at all we need to manually clear the
1890 *) Changes to the "openssl engine" utility to include;
1891 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1892 about an ENGINE's available control commands.
1893 - executing control commands from command line arguments using the
1894 '-pre' and '-post' switches. '-post' is only used if '-t' is
1895 specified and the ENGINE is successfully initialised. The syntax for
1896 the individual commands are colon-separated, for example;
1897 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1900 *) New dynamic control command support for ENGINEs. ENGINEs can now
1901 declare their own commands (numbers), names (strings), descriptions,
1902 and input types for run-time discovery by calling applications. A
1903 subset of these commands are implicitly classed as "executable"
1904 depending on their input type, and only these can be invoked through
1905 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1906 can be based on user input, config files, etc). The distinction is
1907 that "executable" commands cannot return anything other than a boolean
1908 result and can only support numeric or string input, whereas some
1909 discoverable commands may only be for direct use through
1910 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1911 pointers, or other custom uses. The "executable" commands are to
1912 support parameterisations of ENGINE behaviour that can be
1913 unambiguously defined by ENGINEs and used consistently across any
1914 OpenSSL-based application. Commands have been added to all the
1915 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1916 control over shared-library paths without source code alterations.
1919 *) Changed all ENGINE implementations to dynamically allocate their
1920 ENGINEs rather than declaring them statically. Apart from this being
1921 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1922 this also allows the implementations to compile without using the
1923 internal engine_int.h header.
1926 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1927 'const' value. Any code that should be able to modify a RAND_METHOD
1928 should already have non-const pointers to it (ie. they should only
1929 modify their own ones).
1932 *) Made a variety of little tweaks to the ENGINE code.
1933 - "atalla" and "ubsec" string definitions were moved from header files
1934 to C code. "nuron" string definitions were placed in variables
1935 rather than hard-coded - allowing parameterisation of these values
1936 later on via ctrl() commands.
1937 - Removed unused "#if 0"'d code.
1938 - Fixed engine list iteration code so it uses ENGINE_free() to release
1939 structural references.
1940 - Constified the RAND_METHOD element of ENGINE structures.
1941 - Constified various get/set functions as appropriate and added
1942 missing functions (including a catch-all ENGINE_cpy that duplicates
1943 all ENGINE values onto a new ENGINE except reference counts/state).
1944 - Removed NULL parameter checks in get/set functions. Setting a method
1945 or function to NULL is a way of cancelling out a previously set
1946 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1947 and doesn't justify the extra error symbols and code.
1948 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1949 flags from engine_int.h to engine.h.
1950 - Changed prototypes for ENGINE handler functions (init(), finish(),
1951 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1954 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1955 to the algorithm using long division. The binary algorithm can be
1956 used only if the modulus is odd. On 32-bit systems, it is faster
1957 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1958 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1959 up to 450 bits. In 64-bit environments, the binary algorithm
1960 appears to be advantageous for much longer moduli; here we use it
1961 for moduli up to 2048 bits.
1964 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1965 could not support the combine flag in choice fields.
1968 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1969 extensions from a certificate request to the certificate.
1972 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1973 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1974 file: this allows the display of the certificate about to be
1975 signed to be customised, to allow certain fields to be included
1976 or excluded and extension details. The old system didn't display
1977 multicharacter strings properly, omitted fields not in the policy
1978 and couldn't display additional details such as extensions.
1981 *) Function EC_POINTs_mul for multiple scalar multiplication
1982 of an arbitrary number of elliptic curve points
1983 \sum scalars[i]*points[i],
1984 optionally including the generator defined for the EC_GROUP:
1985 scalar*generator + \sum scalars[i]*points[i].
1987 EC_POINT_mul is a simple wrapper function for the typical case
1988 that the point list has just one item (besides the optional
1992 *) First EC_METHODs for curves over GF(p):
1994 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1995 operations and provides various method functions that can also
1996 operate with faster implementations of modular arithmetic.
1998 EC_GFp_mont_method() reuses most functions that are part of
1999 EC_GFp_simple_method, but uses Montgomery arithmetic.
2001 [Bodo Moeller; point addition and point doubling
2002 implementation directly derived from source code provided by
2003 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2005 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2006 crypto/ec/ec_lib.c):
2008 Curves are EC_GROUP objects (with an optional group generator)
2009 based on EC_METHODs that are built into the library.
2011 Points are EC_POINT objects based on EC_GROUP objects.
2013 Most of the framework would be able to handle curves over arbitrary
2014 finite fields, but as there are no obvious types for fields other
2015 than GF(p), some functions are limited to that for now.
2018 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2019 that the file contains a complete HTTP response.
2022 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2023 change the def and num file printf format specifier from "%-40sXXX"
2024 to "%-39s XXX". The latter will always guarantee a space after the
2025 field while the former will cause them to run together if the field
2026 is 40 of more characters long.
2029 *) Constify the cipher and digest 'method' functions and structures
2030 and modify related functions to take constant EVP_MD and EVP_CIPHER
2034 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2035 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2038 *) Modify EVP_Digest*() routines so they now return values. Although the
2039 internal software routines can never fail additional hardware versions
2043 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2045 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2046 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2049 ERR_R_NESTED_ASN1_ERROR
2051 ERR_R_MISSING_ASN1_EOS
2052 were 4 .. 9, conflicting with
2053 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2055 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2056 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2058 Add new error code 'ERR_R_INTERNAL_ERROR'.
2061 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2065 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2066 sets the subject name for a new request or supersedes the
2067 subject name in a given request. Formats that can be parsed are
2068 'CN=Some Name, OU=myOU, C=IT'
2070 'CN=Some Name/OU=myOU/C=IT'.
2072 Add options '-batch' and '-verbose' to 'openssl req'.
2073 [Massimiliano Pala <madwolf@hackmasters.net>]
2075 *) Introduce the possibility to access global variables through
2076 functions on platform were that's the best way to handle exporting
2077 global variables in shared libraries. To enable this functionality,
2078 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2079 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2080 is normally done by Configure or something similar).
2082 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2083 in the source file (foo.c) like this:
2085 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2086 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2088 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2089 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2091 OPENSSL_DECLARE_GLOBAL(int,foo);
2092 #define foo OPENSSL_GLOBAL_REF(foo)
2093 OPENSSL_DECLARE_GLOBAL(double,bar);
2094 #define bar OPENSSL_GLOBAL_REF(bar)
2096 The #defines are very important, and therefore so is including the
2097 header file everywhere where the defined globals are used.
2099 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2100 of ASN.1 items, but that structure is a bit different.
2102 The largest change is in util/mkdef.pl which has been enhanced with
2103 better and easier to understand logic to choose which symbols should
2104 go into the Windows .def files as well as a number of fixes and code
2105 cleanup (among others, algorithm keywords are now sorted
2106 lexicographically to avoid constant rewrites).
2109 *) In BN_div() keep a copy of the sign of 'num' before writing the
2110 result to 'rm' because if rm==num the value will be overwritten
2111 and produce the wrong result if 'num' is negative: this caused
2112 problems with BN_mod() and BN_nnmod().
2115 *) Function OCSP_request_verify(). This checks the signature on an
2116 OCSP request and verifies the signer certificate. The signer
2117 certificate is just checked for a generic purpose and OCSP request
2121 *) Add OCSP_check_validity() function to check the validity of OCSP
2122 responses. OCSP responses are prepared in real time and may only
2123 be a few seconds old. Simply checking that the current time lies
2124 between thisUpdate and nextUpdate max reject otherwise valid responses
2125 caused by either OCSP responder or client clock inaccuracy. Instead
2126 we allow thisUpdate and nextUpdate to fall within a certain period of
2127 the current time. The age of the response can also optionally be
2128 checked. Two new options -validity_period and -status_age added to
2132 *) If signature or public key algorithm is unrecognized print out its
2133 OID rather that just UNKNOWN.
2136 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2137 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2138 ID to be generated from the issuer certificate alone which can then be
2139 passed to OCSP_id_issuer_cmp().
2142 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2143 ASN1 modules to export functions returning ASN1_ITEM pointers
2144 instead of the ASN1_ITEM structures themselves. This adds several
2145 new macros which allow the underlying ASN1 function/structure to
2146 be accessed transparently. As a result code should not use ASN1_ITEM
2147 references directly (such as &X509_it) but instead use the relevant
2148 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2149 use of the new ASN1 code on platforms where exporting structures
2150 is problematical (for example in shared libraries) but exporting
2151 functions returning pointers to structures is not.
2154 *) Add support for overriding the generation of SSL/TLS session IDs.
2155 These callbacks can be registered either in an SSL_CTX or per SSL.
2156 The purpose of this is to allow applications to control, if they wish,
2157 the arbitrary values chosen for use as session IDs, particularly as it
2158 can be useful for session caching in multiple-server environments. A
2159 command-line switch for testing this (and any client code that wishes
2160 to use such a feature) has been added to "s_server".
2161 [Geoff Thorpe, Lutz Jaenicke]
2163 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2164 of the form '#if defined(...) || defined(...) || ...' and
2165 '#if !defined(...) && !defined(...) && ...'. This also avoids
2166 the growing number of special cases it was previously handling.
2169 *) Make all configuration macros available for application by making
2170 sure they are available in opensslconf.h, by giving them names starting
2171 with "OPENSSL_" to avoid conflicts with other packages and by making
2172 sure e_os2.h will cover all platform-specific cases together with
2174 Additionally, it is now possible to define configuration/platform-
2175 specific names (called "system identities"). In the C code, these
2176 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2177 macro with the name beginning with "OPENSSL_SYS_", which is determined
2178 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2182 *) New option -set_serial to 'req' and 'x509' this allows the serial
2183 number to use to be specified on the command line. Previously self
2184 signed certificates were hard coded with serial number 0 and the
2185 CA options of 'x509' had to use a serial number in a file which was
2189 *) New options to 'ca' utility to support V2 CRL entry extensions.
2190 Currently CRL reason, invalidity date and hold instruction are
2191 supported. Add new CRL extensions to V3 code and some new objects.
2194 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2195 disable standard block padding (aka PKCS#5 padding) in the EVP
2196 API, which was previously mandatory. This means that the data is
2197 not padded in any way and so the total length much be a multiple
2198 of the block size, otherwise an error occurs.
2201 *) Initial (incomplete) OCSP SSL support.
2204 *) New function OCSP_parse_url(). This splits up a URL into its host,
2205 port and path components: primarily to parse OCSP URLs. New -url
2206 option to ocsp utility.
2209 *) New nonce behavior. The return value of OCSP_check_nonce() now
2210 reflects the various checks performed. Applications can decide
2211 whether to tolerate certain situations such as an absent nonce
2212 in a response when one was present in a request: the ocsp application
2213 just prints out a warning. New function OCSP_add1_basic_nonce()
2214 this is to allow responders to include a nonce in a response even if
2215 the request is nonce-less.
2218 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2219 skipped when using openssl x509 multiple times on a single input file,
2220 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2223 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2224 set string type: to handle setting ASN1_TIME structures. Fix ca
2225 utility to correctly initialize revocation date of CRLs.
2228 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2229 the clients preferred ciphersuites and rather use its own preferences.
2230 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2231 Internet Explorer by ensuring unchanged hash method during stepup.
2232 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2235 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2236 to aes and add a new 'exist' option to print out symbols that don't
2240 *) Additional options to ocsp utility to allow flags to be set and
2241 additional certificates supplied.
2244 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2245 OCSP client a number of certificate to only verify the response
2249 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2250 handle the new API. Currently only ECB, CBC modes supported. Add new
2253 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2254 Encryption Standard (AES) Ciphersuites for Transport Layer
2255 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2256 not enabled by default and were not part of the "ALL" ciphersuite
2257 alias because they were not yet official; they could be
2258 explicitly requested by specifying the "AESdraft" ciphersuite
2259 group alias. In the final release of OpenSSL 0.9.7, the group
2260 alias is called "AES" and is part of "ALL".)
2261 [Ben Laurie, Steve Henson, Bodo Moeller]
2263 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2264 request to response.
2267 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2268 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2269 extract information from a certificate request. OCSP_response_create()
2270 creates a response and optionally adds a basic response structure.
2271 OCSP_basic_add1_status() adds a complete single response to a basic
2272 response and returns the OCSP_SINGLERESP structure just added (to allow
2273 extensions to be included for example). OCSP_basic_add1_cert() adds a
2274 certificate to a basic response and OCSP_basic_sign() signs a basic
2275 response with various flags. New helper functions ASN1_TIME_check()
2276 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2277 (converts ASN1_TIME to GeneralizedTime).
2280 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2281 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2282 structure from a certificate. X509_pubkey_digest() digests the public_key
2283 contents: this is used in various key identifiers.
2286 *) Make sk_sort() tolerate a NULL argument.
2287 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2289 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2290 passed by the function are trusted implicitly. If any of them signed the
2291 response then it is assumed to be valid and is not verified.
2294 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2295 to data. This was previously part of the PKCS7 ASN1 code. This
2296 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2297 [Steve Henson, reported by Kenneth R. Robinette
2298 <support@securenetterm.com>]
2300 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2301 routines: without these tracing memory leaks is very painful.
2302 Fix leaks in PKCS12 and PKCS7 routines.
2305 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2306 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2307 effectively meant GeneralizedTime would never be used. Now it
2308 is initialised to -1 but X509_time_adj() now has to check the value
2309 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2310 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2311 [Steve Henson, reported by Kenneth R. Robinette
2312 <support@securenetterm.com>]
2314 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2315 result in a zero length in the ASN1_INTEGER structure which was
2316 not consistent with the structure when d2i_ASN1_INTEGER() was used
2317 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2318 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2319 where it did not print out a minus for negative ASN1_INTEGER.
2322 *) Add summary printout to ocsp utility. The various functions which
2323 convert status values to strings have been renamed to:
2324 OCSP_response_status_str(), OCSP_cert_status_str() and
2325 OCSP_crl_reason_str() and are no longer static. New options
2326 to verify nonce values and to disable verification. OCSP response
2327 printout format cleaned up.
2330 *) Add additional OCSP certificate checks. These are those specified
2331 in RFC2560. This consists of two separate checks: the CA of the
2332 certificate being checked must either be the OCSP signer certificate
2333 or the issuer of the OCSP signer certificate. In the latter case the
2334 OCSP signer certificate must contain the OCSP signing extended key
2335 usage. This check is performed by attempting to match the OCSP
2336 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2337 in the OCSP_CERTID structures of the response.
2340 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2341 and related routines. This uses the standard OpenSSL certificate
2342 verify routines to perform initial checks (just CA validity) and
2343 to obtain the certificate chain. Then additional checks will be
2344 performed on the chain. Currently the root CA is checked to see
2345 if it is explicitly trusted for OCSP signing. This is used to set
2346 a root CA as a global signing root: that is any certificate that
2347 chains to that CA is an acceptable OCSP signing certificate.
2350 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2351 extensions from a separate configuration file.
2352 As when reading extensions from the main configuration file,
2353 the '-extensions ...' option may be used for specifying the
2355 [Massimiliano Pala <madwolf@comune.modena.it>]
2357 *) New OCSP utility. Allows OCSP requests to be generated or
2358 read. The request can be sent to a responder and the output
2359 parsed, outputed or printed in text form. Not complete yet:
2360 still needs to check the OCSP response validity.
2363 *) New subcommands for 'openssl ca':
2364 'openssl ca -status <serial>' prints the status of the cert with
2365 the given serial number (according to the index file).
2366 'openssl ca -updatedb' updates the expiry status of certificates
2368 [Massimiliano Pala <madwolf@comune.modena.it>]
2370 *) New '-newreq-nodes' command option to CA.pl. This is like
2371 '-newreq', but calls 'openssl req' with the '-nodes' option
2372 so that the resulting key is not encrypted.
2373 [Damien Miller <djm@mindrot.org>]
2375 *) New configuration for the GNU Hurd.
2376 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2378 *) Initial code to implement OCSP basic response verify. This
2379 is currently incomplete. Currently just finds the signer's
2380 certificate and verifies the signature on the response.
2383 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2384 value of OPENSSLDIR. This is available via the new '-d' option
2385 to 'openssl version', and is also included in 'openssl version -a'.
2388 *) Allowing defining memory allocation callbacks that will be given
2389 file name and line number information in additional arguments
2390 (a const char* and an int). The basic functionality remains, as
2391 well as the original possibility to just replace malloc(),
2392 realloc() and free() by functions that do not know about these
2393 additional arguments. To register and find out the current
2394 settings for extended allocation functions, the following
2395 functions are provided:
2397 CRYPTO_set_mem_ex_functions
2398 CRYPTO_set_locked_mem_ex_functions
2399 CRYPTO_get_mem_ex_functions
2400 CRYPTO_get_locked_mem_ex_functions
2402 These work the same way as CRYPTO_set_mem_functions and friends.
2403 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2404 extended allocation function is enabled.
2405 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2406 a conventional allocation function is enabled.
2407 [Richard Levitte, Bodo Moeller]
2409 *) Finish off removing the remaining LHASH function pointer casts.
2410 There should no longer be any prototype-casting required when using
2411 the LHASH abstraction, and any casts that remain are "bugs". See
2412 the callback types and macros at the head of lhash.h for details
2413 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2416 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2417 If /dev/[u]random devices are not available or do not return enough
2418 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2420 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2421 /etc/entropy will be queried once each in this sequence, quering stops
2422 when enough entropy was collected without querying more sockets.
2425 *) Change the Unix RAND_poll() variant to be able to poll several
2426 random devices, as specified by DEVRANDOM, until a sufficient amount
2427 of data has been collected. We spend at most 10 ms on each file
2428 (select timeout) and read in non-blocking mode. DEVRANDOM now
2429 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2430 (previously it was just the string "/dev/urandom"), so on typical
2431 platforms the 10 ms delay will never occur.
2432 Also separate out the Unix variant to its own file, rand_unix.c.
2433 For VMS, there's a currently-empty rand_vms.c.
2436 *) Move OCSP client related routines to ocsp_cl.c. These
2437 provide utility functions which an application needing
2438 to issue a request to an OCSP responder and analyse the
2439 response will typically need: as opposed to those which an
2440 OCSP responder itself would need which will be added later.
2442 OCSP_request_sign() signs an OCSP request with an API similar
2443 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2444 response. OCSP_response_get1_basic() extracts basic response
2445 from response. OCSP_resp_find_status(): finds and extracts status
2446 information from an OCSP_CERTID structure (which will be created
2447 when the request structure is built). These are built from lower
2448 level functions which work on OCSP_SINGLERESP structures but
2449 wont normally be used unless the application wishes to examine
2450 extensions in the OCSP response for example.
2452 Replace nonce routines with a pair of functions.
2453 OCSP_request_add1_nonce() adds a nonce value and optionally
2454 generates a random value. OCSP_check_nonce() checks the
2455 validity of the nonce in an OCSP response.
2458 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2459 This doesn't copy the supplied OCSP_CERTID and avoids the
2460 need to free up the newly created id. Change return type
2461 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2462 This can then be used to add extensions to the request.
2463 Deleted OCSP_request_new(), since most of its functionality
2464 is now in OCSP_REQUEST_new() (and the case insensitive name
2465 clash) apart from the ability to set the request name which
2466 will be added elsewhere.
2469 *) Update OCSP API. Remove obsolete extensions argument from
2470 various functions. Extensions are now handled using the new
2471 OCSP extension code. New simple OCSP HTTP function which
2472 can be used to send requests and parse the response.
2475 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2476 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2477 uses the special reorder version of SET OF to sort the attributes
2478 and reorder them to match the encoded order. This resolves a long
2479 standing problem: a verify on a PKCS7 structure just after signing
2480 it used to fail because the attribute order did not match the
2481 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2482 it uses the received order. This is necessary to tolerate some broken
2483 software that does not order SET OF. This is handled by encoding
2484 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2485 to produce the required SET OF.
2488 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2489 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2490 files to get correct declarations of the ASN.1 item variables.
2493 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2494 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2495 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2496 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2497 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2498 ASN1_ITEM and no wrapper functions.
2501 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2502 replace the old function pointer based I/O routines. Change most of
2503 the *_d2i_bio() and *_d2i_fp() functions to use these.
2506 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2507 lines, recognice more "algorithms" that can be deselected, and make
2508 it complain about algorithm deselection that isn't recognised.
2511 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2512 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2513 to use new functions. Add NO_ASN1_OLD which can be set to remove
2514 some old style ASN1 functions: this can be used to determine if old
2515 code will still work when these eventually go away.
2518 *) New extension functions for OCSP structures, these follow the
2519 same conventions as certificates and CRLs.
2522 *) New function X509V3_add1_i2d(). This automatically encodes and
2523 adds an extension. Its behaviour can be customised with various
2524 flags to append, replace or delete. Various wrappers added for
2525 certifcates and CRLs.
2528 *) Fix to avoid calling the underlying ASN1 print routine when
2529 an extension cannot be parsed. Correct a typo in the
2530 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2533 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2534 entries for variables.
2537 *) Add functionality to apps/openssl.c for detecting locking
2538 problems: As the program is single-threaded, all we have
2539 to do is register a locking callback using an array for
2540 storing which locks are currently held by the program.
2543 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2544 SSL_get_ex_data_X509_STORE_idx(), which is used in
2545 ssl_verify_cert_chain() and thus can be called at any time
2546 during TLS/SSL handshakes so that thread-safety is essential.
2547 Unfortunately, the ex_data design is not at all suited
2548 for multi-threaded use, so it probably should be abolished.
2551 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2552 [Broadcom, tweaked and integrated by Geoff Thorpe]
2554 *) Move common extension printing code to new function
2555 X509V3_print_extensions(). Reorganise OCSP print routines and
2556 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2559 *) New function X509_signature_print() to remove duplication in some
2563 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2564 set (this was treated exactly the same as SET OF previously). This
2565 is used to reorder the STACK representing the structure to match the
2566 encoding. This will be used to get round a problem where a PKCS7
2567 structure which was signed could not be verified because the STACK
2568 order did not reflect the encoded order.
2571 *) Reimplement the OCSP ASN1 module using the new code.
2574 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2575 for its ASN1 operations. The old style function pointers still exist
2576 for now but they will eventually go away.
2579 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2580 completely replaces the old ASN1 functionality with a table driven
2581 encoder and decoder which interprets an ASN1_ITEM structure describing
2582 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2583 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2584 has also been converted to the new form.
2587 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2588 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2589 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2590 for negative moduli.
2593 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2594 of not touching the result's sign bit.
2597 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2601 *) Changed the LHASH code to use prototypes for callbacks, and created
2602 macros to declare and implement thin (optionally static) functions
2603 that provide type-safety and avoid function pointer casting for the
2604 type-specific callbacks.
2607 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2609 [Veers Staats <staatsvr@asc.hpc.mil>,
2610 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2612 *) Reformat the FAQ so the different questions and answers can be divided
2613 in sections depending on the subject.
2616 *) Have the zlib compression code load ZLIB.DLL dynamically under
2620 *) New function BN_mod_sqrt for computing square roots modulo a prime
2621 (using the probabilistic Tonelli-Shanks algorithm unless
2622 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2623 be handled deterministically).
2624 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2626 *) Make BN_mod_inverse faster by explicitly handling small quotients
2627 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2628 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2631 *) New function BN_kronecker.
2634 *) Fix BN_gcd so that it works on negative inputs; the result is
2635 positive unless both parameters are zero.
2636 Previously something reasonably close to an infinite loop was
2637 possible because numbers could be growing instead of shrinking
2638 in the implementation of Euclid's algorithm.
2641 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2642 sign of the number in question.
2644 Fix BN_is_word(a,w) to work correctly for w == 0.
2646 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2647 because its test if the absolute value of 'a' equals 'w'.
2648 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2649 it exists mostly for use in the implementations of BN_is_zero(),
2650 BN_is_one(), and BN_is_word().
2653 *) New function BN_swap.
2656 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2657 the exponentiation functions are more likely to produce reasonable
2658 results on negative inputs.
2661 *) Change BN_mod_mul so that the result is always non-negative.
2662 Previously, it could be negative if one of the factors was negative;
2663 I don't think anyone really wanted that behaviour.
2666 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2667 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2668 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2669 and add new functions:
2678 BN_mod_lshift1_quick
2682 These functions always generate non-negative results.
2684 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2685 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2687 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2688 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2689 be reduced modulo m.
2690 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2693 The following entry accidentily appeared in the CHANGES file
2694 distributed with OpenSSL 0.9.7. The modifications described in
2695 it do *not* apply to OpenSSL 0.9.7.
2697 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2698 was actually never needed) and in BN_mul(). The removal in BN_mul()
2699 required a small change in bn_mul_part_recursive() and the addition
2700 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2701 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2702 bn_sub_words() and bn_add_words() except they take arrays with
2707 *) In 'openssl passwd', verify passwords read from the terminal
2708 unless the '-salt' option is used (which usually means that
2709 verification would just waste user's time since the resulting
2710 hash is going to be compared with some given password hash)
2711 or the new '-noverify' option is used.
2713 This is an incompatible change, but it does not affect
2714 non-interactive use of 'openssl passwd' (passwords on the command
2715 line, '-stdin' option, '-in ...' option) and thus should not
2719 *) Remove all references to RSAref, since there's no more need for it.
2722 *) Make DSO load along a path given through an environment variable
2723 (SHLIB_PATH) with shl_load().
2726 *) Constify the ENGINE code as a result of BIGNUM constification.
2727 Also constify the RSA code and most things related to it. In a
2728 few places, most notable in the depth of the ASN.1 code, ugly
2729 casts back to non-const were required (to be solved at a later
2733 *) Make it so the openssl application has all engines loaded by default.
2736 *) Constify the BIGNUM routines a little more.
2739 *) Add the following functions:
2741 ENGINE_load_cswift()
2743 ENGINE_load_atalla()
2745 ENGINE_load_builtin_engines()
2747 That way, an application can itself choose if external engines that
2748 are built-in in OpenSSL shall ever be used or not. The benefit is
2749 that applications won't have to be linked with libdl or other dso
2750 libraries unless it's really needed.
2752 Changed 'openssl engine' to load all engines on demand.
2753 Changed the engine header files to avoid the duplication of some
2754 declarations (they differed!).
2757 *) 'openssl engine' can now list capabilities.
2760 *) Better error reporting in 'openssl engine'.
2763 *) Never call load_dh_param(NULL) in s_server.
2766 *) Add engine application. It can currently list engines by name and
2767 identity, and test if they are actually available.
2770 *) Improve RPM specification file by forcing symbolic linking and making
2771 sure the installed documentation is also owned by root.root.
2772 [Damien Miller <djm@mindrot.org>]
2774 *) Give the OpenSSL applications more possibilities to make use of
2775 keys (public as well as private) handled by engines.
2778 *) Add OCSP code that comes from CertCo.
2781 *) Add VMS support for the Rijndael code.
2784 *) Added untested support for Nuron crypto accelerator.
2787 *) Add support for external cryptographic devices. This code was
2788 previously distributed separately as the "engine" branch.
2789 [Geoff Thorpe, Richard Levitte]
2791 *) Rework the filename-translation in the DSO code. It is now possible to
2792 have far greater control over how a "name" is turned into a filename
2793 depending on the operating environment and any oddities about the
2794 different shared library filenames on each system.
2797 *) Support threads on FreeBSD-elf in Configure.
2800 *) Fix for SHA1 assembly problem with MASM: it produces
2801 warnings about corrupt line number information when assembling
2802 with debugging information. This is caused by the overlapping
2804 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2807 NCONF_get_number() has no error checking at all. As a replacement,
2808 NCONF_get_number_e() is defined (_e for "error checking") and is
2809 promoted strongly. The old NCONF_get_number is kept around for
2810 binary backward compatibility.
2811 Make it possible for methods to load from something other than a BIO,
2812 by providing a function pointer that is given a name instead of a BIO.
2813 For example, this could be used to load configuration data from an
2817 *) Fix for non blocking accept BIOs. Added new I/O special reason
2818 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2819 with non blocking I/O was not possible because no retry code was
2820 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2824 *) Added the beginnings of Rijndael support.
2827 *) Fix for bug in DirectoryString mask setting. Add support for
2828 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2829 to allow certificate printing to more controllable, additional
2830 'certopt' option to 'x509' to allow new printing options to be
2834 *) Clean old EAY MD5 hack from e_os.h.
2837 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2839 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2840 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
2841 [Joe Orton, Steve Henson]
2843 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2845 *) Fix additional bug revealed by the NISCC test suite:
2847 Stop bug triggering large recursion when presented with
2848 certain ASN.1 tags (CAN-2003-0851)
2851 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2853 *) Fix various bugs revealed by running the NISCC test suite:
2855 Stop out of bounds reads in the ASN1 code when presented with
2856 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2858 If verify callback ignores invalid public key errors don't try to check
2859 certificate signature with the NULL public key.
2863 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2864 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2868 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2869 extra data after the compression methods not only for TLS 1.0
2870 but also for SSL 3.0 (as required by the specification).
2871 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2873 *) Change X509_certificate_type() to mark the key as exported/exportable
2874 when it's 512 *bits* long, not 512 bytes.
2877 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2879 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2880 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2881 a protocol version number mismatch like a decryption error
2882 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2885 *) Turn on RSA blinding by default in the default implementation
2886 to avoid a timing attack. Applications that don't want it can call
2887 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2888 They would be ill-advised to do so in most cases.
2889 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2891 *) Change RSA blinding code so that it works when the PRNG is not
2892 seeded (in this case, the secret RSA exponent is abused as
2893 an unpredictable seed -- if it is not unpredictable, there
2894 is no point in blinding anyway). Make RSA blinding thread-safe
2895 by remembering the creator's thread ID in rsa->blinding and
2896 having all other threads use local one-time blinding factors
2897 (this requires more computation than sharing rsa->blinding, but
2898 avoids excessive locking; and if an RSA object is not shared
2899 between threads, blinding will still be very fast).
2902 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2904 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2905 via timing by performing a MAC computation even if incorrrect
2906 block cipher padding has been found. This is a countermeasure
2907 against active attacks where the attacker has to distinguish
2908 between bad padding and a MAC verification error. (CAN-2003-0078)
2910 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2911 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2912 Martin Vuagnoux (EPFL, Ilion)]
2914 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2916 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2917 memory from it's contents. This is done with a counter that will
2918 place alternating values in each byte. This can be used to solve
2919 two issues: 1) the removal of calls to memset() by highly optimizing
2920 compilers, and 2) cleansing with other values than 0, since those can
2921 be read through on certain media, for example a swap space on disk.
2924 *) Bugfix: client side session caching did not work with external caching,
2925 because the session->cipher setting was not restored when reloading
2926 from the external cache. This problem was masked, when
2927 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2928 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2931 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2932 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2933 [Zeev Lieber <zeev-l@yahoo.com>]
2935 *) Undo an undocumented change introduced in 0.9.6e which caused
2936 repeated calls to OpenSSL_add_all_ciphers() and
2937 OpenSSL_add_all_digests() to be ignored, even after calling
2941 *) Change the default configuration reader to deal with last line not
2942 being properly terminated.
2945 *) Change X509_NAME_cmp() so it applies the special rules on handling
2946 DN values that are of type PrintableString, as well as RDNs of type
2947 emailAddress where the value has the type ia5String.
2948 [stefank@valicert.com via Richard Levitte]
2950 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2951 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2952 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2953 the bitwise-OR of the two for use by the majority of applications
2954 wanting this behaviour, and update the docs. The documented
2955 behaviour and actual behaviour were inconsistent and had been
2956 changing anyway, so this is more a bug-fix than a behavioural
2958 [Geoff Thorpe, diagnosed by Nadav Har'El]
2960 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2961 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2964 *) Fix initialization code race conditions in
2965 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2966 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2967 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2968 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2969 ssl2_get_cipher_by_char(),
2970 ssl3_get_cipher_by_char().
2971 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2973 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2974 the cached sessions are flushed, as the remove_cb() might use ex_data
2975 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2976 (see [openssl.org #212]).
2977 [Geoff Thorpe, Lutz Jaenicke]
2979 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2980 length, instead of the encoding length to d2i_ASN1_OBJECT.
2983 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2985 *) [In 0.9.6g-engine release:]
2986 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2987 [Lynn Gazis <lgazis@rainbow.com>]
2989 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2991 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2992 and get fix the header length calculation.
2993 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2994 Alon Kantor <alonk@checkpoint.com> (and others),
2997 *) Use proper error handling instead of 'assertions' in buffer
2998 overflow checks added in 0.9.6e. This prevents DoS (the
2999 assertions could call abort()).
3000 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3002 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3004 *) Add various sanity checks to asn1_get_length() to reject
3005 the ASN1 length bytes if they exceed sizeof(long), will appear
3006 negative or the content length exceeds the length of the
3008 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3010 *) Fix cipher selection routines: ciphers without encryption had no flags
3011 for the cipher strength set and where therefore not handled correctly
3012 by the selection routines (PR #130).
3015 *) Fix EVP_dsa_sha macro.
3019 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3020 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3021 that was added in OpenSSL 0.9.6d.
3023 As the countermeasure turned out to be incompatible with some
3024 broken SSL implementations, the new option is part of SSL_OP_ALL.
3025 SSL_OP_ALL is usually employed when compatibility with weird SSL
3026 implementations is desired (e.g. '-bugs' option to 's_client' and
3027 's_server'), so the new option is automatically set in many
3031 *) Changes in security patch:
3033 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3034 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3035 Air Force Materiel Command, USAF, under agreement number
3038 *) Add various sanity checks to asn1_get_length() to reject
3039 the ASN1 length bytes if they exceed sizeof(long), will appear
3040 negative or the content length exceeds the length of the
3041 supplied buffer. (CAN-2002-0659)
3042 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3044 *) Assertions for various potential buffer overflows, not known to
3046 [Ben Laurie (CHATS)]
3048 *) Various temporary buffers to hold ASCII versions of integers were
3049 too small for 64 bit platforms. (CAN-2002-0655)
3050 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3052 *) Remote buffer overflow in SSL3 protocol - an attacker could
3053 supply an oversized session ID to a client. (CAN-2002-0656)
3054 [Ben Laurie (CHATS)]
3056 *) Remote buffer overflow in SSL2 protocol - an attacker could
3057 supply an oversized client master key. (CAN-2002-0656)
3058 [Ben Laurie (CHATS)]
3060 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3062 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3063 encoded as NULL) with id-dsa-with-sha1.
3064 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3066 *) Check various X509_...() return values in apps/req.c.
3067 [Nils Larsch <nla@trustcenter.de>]
3069 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3070 an end-of-file condition would erronously be flagged, when the CRLF
3071 was just at the end of a processed block. The bug was discovered when
3072 processing data through a buffering memory BIO handing the data to a
3073 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3074 <ptsekov@syntrex.com> and Nedelcho Stanev.
3077 *) Implement a countermeasure against a vulnerability recently found
3078 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3079 before application data chunks to avoid the use of known IVs
3080 with data potentially chosen by the attacker.
3083 *) Fix length checks in ssl3_get_client_hello().
3086 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3087 to prevent ssl3_read_internal() from incorrectly assuming that
3088 ssl3_read_bytes() found application data while handshake
3089 processing was enabled when in fact s->s3->in_read_app_data was
3090 merely automatically cleared during the initial handshake.
3091 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3093 *) Fix object definitions for Private and Enterprise: they were not
3094 recognized in their shortname (=lowercase) representation. Extend
3095 obj_dat.pl to issue an error when using undefined keywords instead
3096 of silently ignoring the problem (Svenning Sorensen
3097 <sss@sss.dnsalias.net>).
3100 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3101 generators, i.e. generators other than 2 and 5. (Previously, the
3102 code did not properly initialise the 'add' and 'rem' values to
3103 BN_generate_prime().)
3105 In the new general case, we do not insist that 'generator' is
3106 actually a primitive root: This requirement is rather pointless;
3107 a generator of the order-q subgroup is just as good, if not
3111 *) Map new X509 verification errors to alerts. Discovered and submitted by
3112 Tom Wu <tom@arcot.com>.
3115 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3116 returning non-zero before the data has been completely received
3117 when using non-blocking I/O.
3118 [Bodo Moeller; problem pointed out by John Hughes]
3120 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3121 [Ben Laurie, Lutz Jaenicke]
3123 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3124 Yoram Zahavi <YoramZ@gilian.com>).
3127 *) Add information about CygWin 1.3 and on, and preserve proper
3128 configuration for the versions before that.
3129 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3131 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3132 check whether we deal with a copy of a session and do not delete from
3133 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3134 <izhar@checkpoint.com>.
3137 *) Do not store session data into the internal session cache, if it
3138 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3139 flag is set). Proposed by Aslam <aslam@funk.com>.
3142 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3146 *) [In 0.9.6d-engine release:]
3147 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3148 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3150 *) Add the configuration target linux-s390x.
3151 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3153 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3154 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3155 variable as an indication that a ClientHello message has been
3156 received. As the flag value will be lost between multiple
3157 invocations of ssl3_accept when using non-blocking I/O, the
3158 function may not be aware that a handshake has actually taken
3159 place, thus preventing a new session from being added to the
3162 To avoid this problem, we now set s->new_session to 2 instead of
3163 using a local variable.
3164 [Lutz Jaenicke, Bodo Moeller]
3166 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3167 if the SSL_R_LENGTH_MISMATCH error is detected.
3168 [Geoff Thorpe, Bodo Moeller]
3170 *) New 'shared_ldflag' column in Configure platform table.
3173 *) Fix EVP_CIPHER_mode macro.
3174 ["Dan S. Camper" <dan@bti.net>]
3176 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3177 type, we must throw them away by setting rr->length to 0.
3178 [D P Chang <dpc@qualys.com>]
3180 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3182 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3183 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3184 worked incorrectly for those cases where range = 10..._2 and
3185 3*range is two bits longer than range.)
3188 *) Only add signing time to PKCS7 structures if it is not already
3192 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3193 OBJ_ld_ce should be OBJ_id_ce.
3194 Also some ip-pda OIDs in crypto/objects/objects.txt were
3195 incorrect (cf. RFC 3039).
3196 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3198 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3199 returns early because it has nothing to do.
3200 [Andy Schneider <andy.schneider@bjss.co.uk>]
3202 *) [In 0.9.6c-engine release:]
3203 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3204 [Andy Schneider <andy.schneider@bjss.co.uk>]
3206 *) [In 0.9.6c-engine release:]
3207 Add support for Cryptographic Appliance's keyserver technology.
3208 (Use engine 'keyclient')
3209 [Cryptographic Appliances and Geoff Thorpe]
3211 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3212 is called via tools/c89.sh because arguments have to be
3213 rearranged (all '-L' options must appear before the first object
3215 [Richard Shapiro <rshapiro@abinitio.com>]
3217 *) [In 0.9.6c-engine release:]
3218 Add support for Broadcom crypto accelerator cards, backported
3220 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3222 *) [In 0.9.6c-engine release:]
3223 Add support for SureWare crypto accelerator cards from
3224 Baltimore Technologies. (Use engine 'sureware')
3225 [Baltimore Technologies and Mark Cox]
3227 *) [In 0.9.6c-engine release:]
3228 Add support for crypto accelerator cards from Accelerated
3229 Encryption Processing, www.aep.ie. (Use engine 'aep')
3230 [AEP Inc. and Mark Cox]
3232 *) Add a configuration entry for gcc on UnixWare.
3233 [Gary Benson <gbenson@redhat.com>]
3235 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3236 messages are stored in a single piece (fixed-length part and
3237 variable-length part combined) and fix various bugs found on the way.
3240 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3241 instead. BIO_gethostbyname() does not know what timeouts are
3242 appropriate, so entries would stay in cache even when they have
3244 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3246 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3247 faced with a pathologically small ClientHello fragment that does
3248 not contain client_version: Instead of aborting with an error,
3249 simply choose the highest available protocol version (i.e.,
3250 TLS 1.0 unless it is disabled). In practice, ClientHello
3251 messages are never sent like this, but this change gives us
3252 strictly correct behaviour at least for TLS.
3255 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3256 never resets s->method to s->ctx->method when called from within
3257 one of the SSL handshake functions.
3258 [Bodo Moeller; problem pointed out by Niko Baric]
3260 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3261 (sent using the client's version number) if client_version is
3262 smaller than the protocol version in use. Also change
3263 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3264 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3265 the client will at least see that alert.
3268 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3272 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3273 client receives HelloRequest while in a handshake.
3274 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3276 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3277 should end in 'break', not 'goto end' which circuments various
3278 cleanups done in state SSL_ST_OK. But session related stuff
3279 must be disabled for SSL_ST_OK in the case that we just sent a
3282 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3283 before just sending a HelloRequest.
3284 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3286 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3287 reveal whether illegal block cipher padding was found or a MAC
3288 verification error occured. (Neither SSLerr() codes nor alerts
3289 are directly visible to potential attackers, but the information
3290 may leak via logfiles.)
3292 Similar changes are not required for the SSL 2.0 implementation
3293 because the number of padding bytes is sent in clear for SSL 2.0,
3294 and the extra bytes are just ignored. However ssl/s2_pkt.c
3295 failed to verify that the purported number of padding bytes is in
3299 *) Add OpenUNIX-8 support including shared libraries
3300 (Boyd Lynn Gerber <gerberb@zenez.com>).
3303 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3304 'wristwatch attack' using huge encoding parameters (cf.
3305 James H. Manger's CRYPTO 2001 paper). Note that the
3306 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3307 encoding parameters and hence was not vulnerable.
3310 *) BN_sqr() bug fix.
3311 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3313 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3314 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3315 followed by modular reduction.
3316 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3318 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3319 equivalent based on BN_pseudo_rand() instead of BN_rand().
3322 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3323 This function was broken, as the check for a new client hello message
3324 to handle SGC did not allow these large messages.
3325 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3328 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3331 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3332 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3335 *) Rework the configuration and shared library support for Tru64 Unix.
3336 The configuration part makes use of modern compiler features and
3337 still retains old compiler behavior for those that run older versions
3338 of the OS. The shared library support part includes a variant that
3339 uses the RPATH feature, and is available through the special
3340 configuration target "alpha-cc-rpath", which will never be selected
3342 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3344 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3345 with the same message size as in ssl3_get_certificate_request().
3346 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3347 messages might inadvertently be reject as too long.
3348 [Petr Lampa <lampa@fee.vutbr.cz>]
3350 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3353 *) Modified SSL library such that the verify_callback that has been set
3354 specificly for an SSL object with SSL_set_verify() is actually being
3355 used. Before the change, a verify_callback set with this function was
3356 ignored and the verify_callback() set in the SSL_CTX at the time of
3357 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3358 to allow the necessary settings.
3361 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3362 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3363 done automatically (in contradiction to the requirements of the C
3364 standard). This made problems when used from OpenSSH.
3367 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3368 dh->length and always used
3370 BN_rand_range(priv_key, dh->p).
3372 BN_rand_range() is not necessary for Diffie-Hellman, and this
3373 specific range makes Diffie-Hellman unnecessarily inefficient if
3374 dh->length (recommended exponent length) is much smaller than the
3375 length of dh->p. We could use BN_rand_range() if the order of
3376 the subgroup was stored in the DH structure, but we only have
3381 BN_rand(priv_key, l, ...)
3383 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3389 RSA_eay_public_encrypt
3390 RSA_eay_private_decrypt
3391 RSA_eay_private_encrypt (signing)
3392 RSA_eay_public_decrypt (signature verification)
3394 (default implementations for RSA_public_encrypt,
3395 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3396 always reject numbers >= n.
3399 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3400 to synchronize access to 'locking_thread'. This is necessary on
3401 systems where access to 'locking_thread' (an 'unsigned long'
3402 variable) is not atomic.
3405 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3406 *before* setting the 'crypto_lock_rand' flag. The previous code had
3407 a race condition if 0 is a valid thread ID.
3408 [Travis Vitek <vitek@roguewave.com>]
3410 *) Add support for shared libraries under Irix.
3411 [Albert Chin-A-Young <china@thewrittenword.com>]
3413 *) Add configuration option to build on Linux on both big-endian and
3415 [Ralf Baechle <ralf@uni-koblenz.de>]
3417 *) Add the possibility to create shared libraries on HP-UX.
3420 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3422 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3423 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3424 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3425 PRNG state recovery was possible based on the output of
3426 one PRNG request appropriately sized to gain knowledge on
3427 'md' followed by enough consecutive 1-byte PRNG requests
3428 to traverse all of 'state'.
3430 1. When updating 'md_local' (the current thread's copy of 'md')
3431 during PRNG output generation, hash all of the previous
3432 'md_local' value, not just the half used for PRNG output.
3434 2. Make the number of bytes from 'state' included into the hash
3435 independent from the number of PRNG bytes requested.
3437 The first measure alone would be sufficient to avoid
3438 Markku-Juhani's attack. (Actually it had never occurred
3439 to me that the half of 'md_local' used for chaining was the
3440 half from which PRNG output bytes were taken -- I had always
3441 assumed that the secret half would be used.) The second
3442 measure makes sure that additional data from 'state' is never
3443 mixed into 'md_local' in small portions; this heuristically
3444 further strengthens the PRNG.
3447 *) Fix crypto/bn/asm/mips3.s.
3450 *) When only the key is given to "enc", the IV is undefined. Print out
3451 an error message in this case.
3454 *) Handle special case when X509_NAME is empty in X509 printing routines.
3457 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3458 positive and less than q.
3461 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3462 used: it isn't thread safe and the add_lock_callback should handle
3464 [Paul Rose <Paul.Rose@bridge.com>]
3466 *) Verify that incoming data obeys the block size in
3467 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3471 [Ulf Möller, Bodo Möller]
3473 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3474 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3475 when fixing the server behaviour for backwards-compatible 'client
3476 hello' messages. (Note that the attack is impractical against
3477 SSL 3.0 and TLS 1.0 anyway because length and version checking
3478 means that the probability of guessing a valid ciphertext is
3479 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3482 Before 0.9.5, the countermeasure (hide the error by generating a
3483 random 'decryption result') did not work properly because
3484 ERR_clear_error() was missing, meaning that SSL_get_error() would
3485 detect the supposedly ignored error.
3487 Both problems are now fixed.
3490 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3491 (previously it was 1024).
3494 *) Fix for compatibility mode trust settings: ignore trust settings
3495 unless some valid trust or reject settings are present.
3498 *) Fix for blowfish EVP: its a variable length cipher.
3501 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3502 parameters in DSA public key structures and return an error in the
3503 DSA routines if parameters are absent.
3506 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3507 in the current directory if neither $RANDFILE nor $HOME was set.
3508 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3509 caused some confusion to Windows users who haven't defined $HOME.
3510 Thus RAND_file_name() is changed again: e_os.h can define a
3511 DEFAULT_HOME, which will be used if $HOME is not set.
3512 For Windows, we use "C:"; on other platforms, we still require
3513 environment variables.
3515 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3516 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3517 having multiple threads call RAND_poll() concurrently.
3520 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3521 combination of a flag and a thread ID variable.
3522 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3523 flag), *other* threads can enter ssleay_add_bytes without obeying
3524 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3525 that they do not hold after the first thread unsets add_do_not_lock).
3528 *) Change bctest again: '-x' expressions are not available in all
3532 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3534 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3535 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3537 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3538 the default extension for executables, if any. Also, make the perl
3539 scripts that use symlink() to test if it really exists and use "cp"
3540 if it doesn't. All this made OpenSSL compilable and installable in
3544 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3545 If SEQUENCE is length is indefinite just set c->slen to the total
3546 amount of data available.
3547 [Steve Henson, reported by shige@FreeBSD.org]
3548 [This change does not apply to 0.9.7.]
3550 *) Change bctest to avoid here-documents inside command substitution
3551 (workaround for FreeBSD /bin/sh bug).
3552 For compatibility with Ultrix, avoid shell functions (introduced
3553 in the bctest version that searches along $PATH).
3556 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3557 with des_encrypt() defined on some operating systems, like Solaris
3561 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3562 On the Importance of Eliminating Errors in Cryptographic
3563 Computations, J. Cryptology 14 (2001) 2, 101-119,
3564 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3567 *) MIPS assembler BIGNUM division bug fix.
3570 *) Disabled incorrect Alpha assembler code.
3573 *) Fix PKCS#7 decode routines so they correctly update the length
3574 after reading an EOC for the EXPLICIT tag.
3576 [This change does not apply to 0.9.7.]
3578 *) Fix bug in PKCS#12 key generation routines. This was triggered
3579 if a 3DES key was generated with a 0 initial byte. Include
3580 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3581 (but broken) behaviour.
3584 *) Enhance bctest to search for a working bc along $PATH and print
3586 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3588 *) Fix memory leaks in err.c: free err_data string if necessary;
3589 don't write to the wrong index in ERR_set_error_data.
3592 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3596 *) Replace rdtsc with _emit statements for VC++ version 5.
3597 [Jeremy Cooper <jeremy@baymoo.org>]
3599 *) Make it possible to reuse SSLv2 sessions.
3602 *) In copy_email() check for >= 0 as a return value for
3603 X509_NAME_get_index_by_NID() since 0 is a valid index.
3604 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3606 *) Avoid coredump with unsupported or invalid public keys by checking if
3607 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3608 PKCS7_verify() fails with non detached data.
3611 *) Don't use getenv in library functions when run as setuid/setgid.
3612 New function OPENSSL_issetugid().
3615 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3616 due to incorrect handling of multi-threading:
3618 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3620 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3622 3. Count how many times MemCheck_off() has been called so that
3623 nested use can be treated correctly. This also avoids
3624 inband-signalling in the previous code (which relied on the
3625 assumption that thread ID 0 is impossible).
3628 *) Add "-rand" option also to s_client and s_server.
3631 *) Fix CPU detection on Irix 6.x.
3632 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3633 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3635 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3638 [This change does not apply to 0.9.7.]
3640 *) Use the cached encoding of an X509_NAME structure rather than
3641 copying it. This is apparently the reason for the libsafe "errors"
3642 but the code is actually correct.
3645 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3646 Bleichenbacher's DSA attack.
3647 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3648 to be set and top=0 forces the highest bit to be set; top=-1 is new
3649 and leaves the highest bit random.
3650 [Ulf Moeller, Bodo Moeller]
3652 *) In the NCONF_...-based implementations for CONF_... queries
3653 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3654 a temporary CONF structure with the data component set to NULL
3655 (which gives segmentation faults in lh_retrieve).
3656 Instead, use NULL for the CONF pointer in CONF_get_string and
3657 CONF_get_number (which may use environment variables) and directly
3658 return NULL from CONF_get_section.
3661 *) Fix potential buffer overrun for EBCDIC.
3664 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3665 keyUsage if basicConstraints absent for a CA.
3668 *) Make SMIME_write_PKCS7() write mail header values with a format that
3669 is more generally accepted (no spaces before the semicolon), since
3670 some programs can't parse those values properly otherwise. Also make
3671 sure BIO's that break lines after each write do not create invalid
3675 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3676 macros previously used would not encode an empty SEQUENCE OF
3677 and break the signature.
3679 [This change does not apply to 0.9.7.]
3681 *) Zero the premaster secret after deriving the master secret in
3685 *) Add some EVP_add_digest_alias registrations (as found in
3686 OpenSSL_add_all_digests()) to SSL_library_init()
3687 aka OpenSSL_add_ssl_algorithms(). This provides improved
3688 compatibility with peers using X.509 certificates
3689 with unconventional AlgorithmIdentifier OIDs.
3692 *) Fix for Irix with NO_ASM.
3693 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3695 *) ./config script fixes.
3696 [Ulf Moeller, Richard Levitte]
3698 *) Fix 'openssl passwd -1'.
3701 *) Change PKCS12_key_gen_asc() so it can cope with non null
3702 terminated strings whose length is passed in the passlen
3703 parameter, for example from PEM callbacks. This was done
3704 by adding an extra length parameter to asc2uni().
3705 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3707 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3708 call failed, free the DSA structure.
3711 *) Fix to uni2asc() to cope with zero length Unicode strings.
3712 These are present in some PKCS#12 files.
3715 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3716 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3717 when writing a 32767 byte record.
3718 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3720 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3721 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3723 (RSA objects have a reference count access to which is protected
3724 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3725 so they are meant to be shared between threads.)
3726 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3727 "Reddie, Steven" <Steven.Reddie@ca.com>]
3729 *) Fix a deadlock in CRYPTO_mem_leaks().
3732 *) Use better test patterns in bntest.
3735 *) rand_win.c fix for Borland C.
3738 *) BN_rshift bugfix for n == 0.
3741 *) Add a 'bctest' script that checks for some known 'bc' bugs
3742 so that 'make test' does not abort just because 'bc' is broken.
3745 *) Store verify_result within SSL_SESSION also for client side to
3746 avoid potential security hole. (Re-used sessions on the client side
3747 always resulted in verify_result==X509_V_OK, not using the original
3748 result of the server certificate verification.)
3751 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3752 SSL3_RT_APPLICATION_DATA, return 0.
3753 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3757 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3758 releases, have been re-implemented by renaming the previous
3759 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3760 and ssl3_read_internal, respectively, and adding 'peek' parameters
3761 to them. The new ssl[23]_{read,peek} functions are calls to
3762 ssl[23]_read_internal with the 'peek' flag set appropriately.
3763 A 'peek' parameter has also been added to ssl3_read_bytes, which
3764 does the actual work for ssl3_read_internal.
3767 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3768 the method-specific "init()" handler. Also clean up ex_data after
3769 calling the method-specific "finish()" handler. Previously, this was
3770 happening the other way round.
3773 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3774 The previous value, 12, was not always sufficient for BN_mod_exp().
3777 *) Make sure that shared libraries get the internal name engine with
3778 the full version number and not just 0. This should mark the
3779 shared libraries as not backward compatible. Of course, this should
3780 be changed again when we can guarantee backward binary compatibility.
3783 *) Fix typo in get_cert_by_subject() in by_dir.c
3784 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3786 *) Rework the system to generate shared libraries:
3788 - Make note of the expected extension for the shared libraries and
3789 if there is a need for symbolic links from for example libcrypto.so.0
3790 to libcrypto.so.0.9.7. There is extended info in Configure for
3793 - Make as few rebuilds of the shared libraries as possible.
3795 - Still avoid linking the OpenSSL programs with the shared libraries.
3797 - When installing, install the shared libraries separately from the
3801 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3803 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3804 and not in SSL_clear because the latter is also used by the
3805 accept/connect functions; previously, the settings made by
3806 SSL_set_read_ahead would be lost during the handshake.
3807 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3809 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3810 Previously, it would create entries for disableed algorithms no
3814 *) Added several new manual pages for SSL_* function.
3817 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3819 *) In ssl23_get_client_hello, generate an error message when faced
3820 with an initial SSL 3.0/TLS record that is too small to contain the
3821 first two bytes of the ClientHello message, i.e. client_version.
3822 (Note that this is a pathologic case that probably has never happened
3823 in real life.) The previous approach was to use the version number
3824 from the record header as a substitute; but our protocol choice
3825 should not depend on that one because it is not authenticated
3826 by the Finished messages.
3829 *) More robust randomness gathering functions for Windows.
3830 [Jeffrey Altman <jaltman@columbia.edu>]
3832 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3833 not set then we don't setup the error code for issuer check errors
3834 to avoid possibly overwriting other errors which the callback does
3835 handle. If an application does set the flag then we assume it knows
3836 what it is doing and can handle the new informational codes
3840 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3841 a general "ANY" type, as such it should be able to decode anything
3842 including tagged types. However it didn't check the class so it would
3843 wrongly interpret tagged types in the same way as their universal
3844 counterpart and unknown types were just rejected. Changed so that the
3845 tagged and unknown types are handled in the same way as a SEQUENCE:
3846 that is the encoding is stored intact. There is also a new type
3847 "V_ASN1_OTHER" which is used when the class is not universal, in this
3848 case we have no idea what the actual type is so we just lump them all
3852 *) On VMS, stdout may very well lead to a file that is written to
3853 in a record-oriented fashion. That means that every write() will
3854 write a separate record, which will be read separately by the
3855 programs trying to read from it. This can be very confusing.
3857 The solution is to put a BIO filter in the way that will buffer
3858 text until a linefeed is reached, and then write everything a
3859 line at a time, so every record written will be an actual line,
3860 not chunks of lines and not (usually doesn't happen, but I've
3861 seen it once) several lines in one record. BIO_f_linebuffer() is
3864 Currently, it's a VMS-only method, because that's where it has
3865 been tested well enough.
3868 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3869 it can return incorrect results.
3870 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3871 but it was in 0.9.6-beta[12].)
3874 *) Disable the check for content being present when verifying detached
3875 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3876 include zero length content when signing messages.
3879 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3880 BIO_ctrl (for BIO pairs).
3883 *) Add DSO method for VMS.
3886 *) Bug fix: Montgomery multiplication could produce results with the
3890 *) Add RPM specification openssl.spec and modify it to build three
3891 packages. The default package contains applications, application
3892 documentation and run-time libraries. The devel package contains
3893 include files, static libraries and function documentation. The
3894 doc package contains the contents of the doc directory. The original
3895 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3898 *) Add a large number of documentation files for many SSL routines.
3899 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3901 *) Add a configuration entry for Sony News 4.
3902 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3904 *) Don't set the two most significant bits to one when generating a
3905 random number < q in the DSA library.
3908 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3909 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3910 the underlying transport is blocking) if a handshake took place.
3911 (The default behaviour is needed by applications such as s_client
3912 and s_server that use select() to determine when to use SSL_read;
3913 but for applications that know in advance when to expect data, it
3914 just makes things more complicated.)
3917 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3921 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3922 work better on such systems.
3923 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3925 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3926 Update PKCS12_parse() so it copies the friendlyName and the
3927 keyid to the certificates aux info.
3930 *) Fix bug in PKCS7_verify() which caused an infinite loop
3931 if there was more than one signature.
3932 [Sven Uszpelkat <su@celocom.de>]
3934 *) Major change in util/mkdef.pl to include extra information
3935 about each symbol, as well as presentig variables as well
3936 as functions. This change means that there's n more need
3937 to rebuild the .num files when some algorithms are excluded.
3940 *) Allow the verify time to be set by an application,
3941 rather than always using the current time.
3944 *) Phase 2 verify code reorganisation. The certificate
3945 verify code now looks up an issuer certificate by a
3946 number of criteria: subject name, authority key id
3947 and key usage. It also verifies self signed certificates
3948 by the same criteria. The main comparison function is
3949 X509_check_issued() which performs these checks.
3951 Lot of changes were necessary in order to support this
3952 without completely rewriting the lookup code.
3954 Authority and subject key identifier are now cached.
3956 The LHASH 'certs' is X509_STORE has now been replaced
3957 by a STACK_OF(X509_OBJECT). This is mainly because an
3958 LHASH can't store or retrieve multiple objects with
3959 the same hash value.
3961 As a result various functions (which were all internal
3962 use only) have changed to handle the new X509_STORE
3963 structure. This will break anything that messed round
3964 with X509_STORE internally.
3966 The functions X509_STORE_add_cert() now checks for an
3967 exact match, rather than just subject name.
3969 The X509_STORE API doesn't directly support the retrieval
3970 of multiple certificates matching a given criteria, however
3971 this can be worked round by performing a lookup first
3972 (which will fill the cache with candidate certificates)
3973 and then examining the cache for matches. This is probably
3974 the best we can do without throwing out X509_LOOKUP
3975 entirely (maybe later...).
3977 The X509_VERIFY_CTX structure has been enhanced considerably.
3979 All certificate lookup operations now go via a get_issuer()
3980 callback. Although this currently uses an X509_STORE it
3981 can be replaced by custom lookups. This is a simple way
3982 to bypass the X509_STORE hackery necessary to make this
3983 work and makes it possible to use more efficient techniques
3984 in future. A very simple version which uses a simple
3985 STACK for its trusted certificate store is also provided
3986 using X509_STORE_CTX_trusted_stack().
3988 The verify_cb() and verify() callbacks now have equivalents
3989 in the X509_STORE_CTX structure.
3991 X509_STORE_CTX also has a 'flags' field which can be used
3992 to customise the verify behaviour.
3995 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3996 excludes S/MIME capabilities.
3999 *) When a certificate request is read in keep a copy of the
4000 original encoding of the signed data and use it when outputing
4001 again. Signatures then use the original encoding rather than
4002 a decoded, encoded version which may cause problems if the
4003 request is improperly encoded.
4006 *) For consistency with other BIO_puts implementations, call
4007 buffer_write(b, ...) directly in buffer_puts instead of calling
4010 In BIO_puts, increment b->num_write as in BIO_write.
4011 [Peter.Sylvester@EdelWeb.fr]
4013 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4014 BN_zero, we may not return a BIGNUM with an array consisting of
4018 *) Avoid calling abort() from within the library when problems are
4019 detected, except if preprocessor symbols have been defined
4020 (such as REF_CHECK, BN_DEBUG etc.).
4023 *) New openssl application 'rsautl'. This utility can be
4024 used for low level RSA operations. DER public key
4025 BIO/fp routines also added.
4028 *) New Configure entry and patches for compiling on QNX 4.
4029 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4031 *) A demo state-machine implementation was sponsored by
4032 Nuron (http://www.nuron.com/) and is now available in
4033 demos/state_machine.
4036 *) New options added to the 'dgst' utility for signature
4037 generation and verification.
4040 *) Unrecognized PKCS#7 content types are now handled via a
4041 catch all ASN1_TYPE structure. This allows unsupported
4042 types to be stored as a "blob" and an application can
4043 encode and decode it manually.
4046 *) Fix various signed/unsigned issues to make a_strex.c
4048 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4050 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4051 length if passed a buffer. ASN1_INTEGER_to_BN failed
4052 if passed a NULL BN and its argument was negative.
4053 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4055 *) Modification to PKCS#7 encoding routines to output definite
4056 length encoding. Since currently the whole structures are in
4057 memory there's not real point in using indefinite length
4058 constructed encoding. However if OpenSSL is compiled with
4059 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4062 *) Added BIO_vprintf() and BIO_vsnprintf().
4065 *) Added more prefixes to parse for in the the strings written
4066 through a logging bio, to cover all the levels that are available
4067 through syslog. The prefixes are now:
4069 PANIC, EMERG, EMR => LOG_EMERG
4070 ALERT, ALR => LOG_ALERT
4071 CRIT, CRI => LOG_CRIT
4072 ERROR, ERR => LOG_ERR
4073 WARNING, WARN, WAR => LOG_WARNING
4074 NOTICE, NOTE, NOT => LOG_NOTICE
4075 INFO, INF => LOG_INFO
4076 DEBUG, DBG => LOG_DEBUG
4078 and as before, if none of those prefixes are present at the
4079 beginning of the string, LOG_ERR is chosen.
4081 On Win32, the LOG_* levels are mapped according to this:
4083 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4084 LOG_WARNING => EVENTLOG_WARNING_TYPE
4085 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4089 *) Made it possible to reconfigure with just the configuration
4090 argument "reconf" or "reconfigure". The command line arguments
4091 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4092 and are retrieved from there when reconfiguring.
4096 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4098 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4101 *) The obj_dat.pl script was messing up the sorting of object
4102 names. The reason was that it compared the quoted version
4103 of strings as a result "OCSP" > "OCSP Signing" because
4104 " > SPACE. Changed script to store unquoted versions of
4105 names and add quotes on output. It was also omitting some
4106 names from the lookup table if they were given a default
4107 value (that is if SN is missing it is given the same
4108 value as LN and vice versa), these are now added on the
4109 grounds that if an object has a name we should be able to
4110 look it up. Finally added warning output when duplicate
4111 short or long names are found.
4114 *) Changes needed for Tandem NSK.
4115 [Scott Uroff <scott@xypro.com>]
4117 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4118 RSA_padding_check_SSLv23(), special padding was never detected
4119 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4120 version rollback attacks was not effective.
4122 In s23_clnt.c, don't use special rollback-attack detection padding
4123 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4124 client; similarly, in s23_srvr.c, don't do the rollback check if
4125 SSL 2.0 is the only protocol enabled in the server.
4128 *) Make it possible to get hexdumps of unprintable data with 'openssl
4129 asn1parse'. By implication, the functions ASN1_parse_dump() and
4130 BIO_dump_indent() are added.
4133 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4134 these print out strings and name structures based on various
4135 flags including RFC2253 support and proper handling of
4136 multibyte characters. Added options to the 'x509' utility
4137 to allow the various flags to be set.
4140 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4141 Also change the functions X509_cmp_current_time() and
4142 X509_gmtime_adj() work with an ASN1_TIME structure,
4143 this will enable certificates using GeneralizedTime in validity
4144 dates to be checked.
4147 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4148 negative public key encodings) on by default,
4149 NO_NEG_PUBKEY_BUG can be set to disable it.
4152 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4153 content octets. An i2c_ASN1_OBJECT is unnecessary because
4154 the encoding can be trivially obtained from the structure.
4157 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4158 not read locks (CRYPTO_r_[un]lock).
4161 *) A first attempt at creating official support for shared
4162 libraries through configuration. I've kept it so the
4163 default is static libraries only, and the OpenSSL programs
4164 are always statically linked for now, but there are
4165 preparations for dynamic linking in place.
4166 This has been tested on Linux and Tru64.
4169 *) Randomness polling function for Win9x, as described in:
4170 Peter Gutmann, Software Generation of Practically Strong
4174 *) Fix so PRNG is seeded in req if using an already existing
4178 *) New options to smime application. -inform and -outform
4179 allow alternative formats for the S/MIME message including
4180 PEM and DER. The -content option allows the content to be
4181 specified separately. This should allow things like Netscape
4182 form signing output easier to verify.
4185 *) Fix the ASN1 encoding of tags using the 'long form'.
4188 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4189 STRING types. These convert content octets to and from the
4190 underlying type. The actual tag and length octets are
4191 already assumed to have been read in and checked. These
4192 are needed because all other string types have virtually
4193 identical handling apart from the tag. By having versions
4194 of the ASN1 functions that just operate on content octets
4195 IMPLICIT tagging can be handled properly. It also allows
4196 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4197 and ASN1_INTEGER are identical apart from the tag.
4200 *) Change the handling of OID objects as follows:
4202 - New object identifiers are inserted in objects.txt, following
4203 the syntax given in objects.README.
4204 - objects.pl is used to process obj_mac.num and create a new
4206 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4209 This is currently kind of a hack, and the perl code in objects.pl
4210 isn't very elegant, but it works as I intended. The simplest way
4211 to check that it worked correctly is to look in obj_dat.h and
4212 check the array nid_objs and make sure the objects haven't moved
4213 around (this is important!). Additions are OK, as well as
4214 consistent name changes.
4217 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4220 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4221 The given file adds to whatever has already been seeded into the
4222 random pool through the RANDFILE configuration file option or
4223 environment variable, or the default random state file.
4226 *) mkstack.pl now sorts each macro group into lexical order.
4227 Previously the output order depended on the order the files
4228 appeared in the directory, resulting in needless rewriting
4232 *) Patches to make OpenSSL compile under Win32 again. Mostly
4233 work arounds for the VC++ problem that it treats func() as
4234 func(void). Also stripped out the parts of mkdef.pl that
4235 added extra typesafe functions: these no longer exist.
4238 *) Reorganisation of the stack code. The macros are now all
4239 collected in safestack.h . Each macro is defined in terms of
4240 a "stack macro" of the form SKM_<name>(type, a, b). The
4241 DEBUG_SAFESTACK is now handled in terms of function casts,
4242 this has the advantage of retaining type safety without the
4243 use of additional functions. If DEBUG_SAFESTACK is not defined
4244 then the non typesafe macros are used instead. Also modified the
4245 mkstack.pl script to handle the new form. Needs testing to see
4246 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4247 the default if no major problems. Similar behaviour for ASN1_SET_OF
4248 and PKCS12_STACK_OF.
4251 *) When some versions of IIS use the 'NET' form of private key the
4252 key derivation algorithm is different. Normally MD5(password) is
4253 used as a 128 bit RC4 key. In the modified case
4254 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4255 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4256 as the old Netscape_RSA functions except they have an additional
4257 'sgckey' parameter which uses the modified algorithm. Also added
4258 an -sgckey command line option to the rsa utility. Thanks to
4259 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4260 algorithm to openssl-dev.
4263 *) The evp_local.h macros were using 'c.##kname' which resulted in
4264 invalid expansion on some systems (SCO 5.0.5 for example).
4265 Corrected to 'c.kname'.
4266 [Phillip Porch <root@theporch.com>]
4268 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4269 a STACK of email addresses from a certificate or request, these look
4270 in the subject name and the subject alternative name extensions and
4271 omit any duplicate addresses.
4274 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4275 This makes DSA verification about 2 % faster.
4278 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4279 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4280 plus overhead for 1024 bit moduli).
4281 This makes exponentiations about 0.5 % faster for 1024 bit
4282 exponents (as measured by "openssl speed rsa2048").
4285 *) Rename memory handling macros to avoid conflicts with other
4287 Malloc => OPENSSL_malloc
4288 Malloc_locked => OPENSSL_malloc_locked
4289 Realloc => OPENSSL_realloc
4290 Free => OPENSSL_free
4293 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4294 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4297 *) CygWin32 support.
4298 [John Jarvie <jjarvie@newsguy.com>]
4300 *) The type-safe stack code has been rejigged. It is now only compiled
4301 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4302 by default all type-specific stack functions are "#define"d back to
4303 standard stack functions. This results in more streamlined output
4304 but retains the type-safety checking possibilities of the original
4308 *) The STACK code has been cleaned up, and certain type declarations
4309 that didn't make a lot of sense have been brought in line. This has
4310 also involved a cleanup of sorts in safestack.h to more correctly
4311 map type-safe stack functions onto their plain stack counterparts.
4312 This work has also resulted in a variety of "const"ifications of
4313 lots of the code, especially "_cmp" operations which should normally
4314 be prototyped with "const" parameters anyway.
4317 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4318 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4319 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4320 where all of 'md' is used each time the PRNG is used, but 'state'
4321 is used only indexed by a cyclic counter. As entropy may not be
4322 well distributed from the beginning, 'md' is important as a
4323 chaining variable. However, the output function chains only half
4324 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4325 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4326 in all of 'state' being rewritten, with the new values depending
4327 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4330 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4331 the handshake is continued after ssl_verify_cert_chain();
4332 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4333 can lead to 'unexplainable' connection aborts later.
4334 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4336 *) Major EVP API cipher revision.
4337 Add hooks for extra EVP features. This allows various cipher
4338 parameters to be set in the EVP interface. Support added for variable
4339 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4340 setting of RC2 and RC5 parameters.
4342 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4345 Remove lots of duplicated code from the EVP library. For example *every*
4346 cipher init() function handles the 'iv' in the same way according to the
4347 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4348 for CFB and OFB modes they zero ctx->num.
4350 New functionality allows removal of S/MIME code RC2 hack.
4352 Most of the routines have the same form and so can be declared in terms
4355 By shifting this to the top level EVP_CipherInit() it can be removed from
4356 all individual ciphers. If the cipher wants to handle IVs or keys
4357 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4360 Change lots of functions like EVP_EncryptUpdate() to now return a
4361 value: although software versions of the algorithms cannot fail
4362 any installed hardware versions can.
4365 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4366 this option is set, tolerate broken clients that send the negotiated
4367 protocol version number instead of the requested protocol version
4371 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4372 i.e. non-zero for export ciphersuites, zero otherwise.
4373 Previous versions had this flag inverted, inconsistent with
4374 rsa_tmp_cb (..._TMP_RSA_CB).
4375 [Bodo Moeller; problem reported by Amit Chopra]
4377 *) Add missing DSA library text string. Work around for some IIS
4378 key files with invalid SEQUENCE encoding.
4381 *) Add a document (doc/standards.txt) that list all kinds of standards
4382 and so on that are implemented in OpenSSL.
4385 *) Enhance c_rehash script. Old version would mishandle certificates
4386 with the same subject name hash and wouldn't handle CRLs at all.
4387 Added -fingerprint option to crl utility, to support new c_rehash
4391 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4394 *) Fix for SSL server purpose checking. Server checking was
4395 rejecting certificates which had extended key usage present
4396 but no ssl client purpose.
4397 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4399 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4400 is a little unclear about how a blank password is handled.
4401 Since the password in encoded as a BMPString with terminating
4402 double NULL a zero length password would end up as just the
4403 double NULL. However no password at all is different and is
4404 handled differently in the PKCS#12 key generation code. NS
4405 treats a blank password as zero length. MSIE treats it as no
4406 password on export: but it will try both on import. We now do
4407 the same: PKCS12_parse() tries zero length and no password if
4408 the password is set to "" or NULL (NULL is now a valid password:
4409 it wasn't before) as does the pkcs12 application.
4412 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4413 perror when PEM_read_bio_X509_REQ fails, the error message must
4414 be obtained from the error queue.
4417 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4418 it in ERR_remove_state if appropriate, and change ERR_get_state
4419 accordingly to avoid race conditions (this is necessary because
4420 thread_hash is no longer constant once set).
4423 *) Bugfix for linux-elf makefile.one.
4426 *) RSA_get_default_method() will now cause a default
4427 RSA_METHOD to be chosen if one doesn't exist already.
4428 Previously this was only set during a call to RSA_new()
4429 or RSA_new_method(NULL) meaning it was possible for
4430 RSA_get_default_method() to return NULL.
4433 *) Added native name translation to the existing DSO code
4434 that will convert (if the flag to do so is set) filenames
4435 that are sufficiently small and have no path information
4436 into a canonical native form. Eg. "blah" converted to
4437 "libblah.so" or "blah.dll" etc.
4440 *) New function ERR_error_string_n(e, buf, len) which is like
4441 ERR_error_string(e, buf), but writes at most 'len' bytes
4442 including the 0 terminator. For ERR_error_string_n, 'buf'
4444 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4446 *) CONF library reworked to become more general. A new CONF
4447 configuration file reader "class" is implemented as well as a
4448 new functions (NCONF_*, for "New CONF") to handle it. The now
4449 old CONF_* functions are still there, but are reimplemented to
4450 work in terms of the new functions. Also, a set of functions
4451 to handle the internal storage of the configuration data is
4452 provided to make it easier to write new configuration file
4453 reader "classes" (I can definitely see something reading a
4454 configuration file in XML format, for example), called _CONF_*,
4455 or "the configuration storage API"...
4457 The new configuration file reading functions are:
4459 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4460 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4462 NCONF_default, NCONF_WIN32
4464 NCONF_dump_fp, NCONF_dump_bio
4466 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4467 NCONF_new creates a new CONF object. This works in the same way
4468 as other interfaces in OpenSSL, like the BIO interface.
4469 NCONF_dump_* dump the internal storage of the configuration file,
4470 which is useful for debugging. All other functions take the same
4471 arguments as the old CONF_* functions wth the exception of the
4472 first that must be a `CONF *' instead of a `LHASH *'.
4474 To make it easer to use the new classes with the old CONF_* functions,
4475 the function CONF_set_default_method is provided.
4478 *) Add '-tls1' option to 'openssl ciphers', which was already
4479 mentioned in the documentation but had not been implemented.
4480 (This option is not yet really useful because even the additional
4481 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4484 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4485 OpenSSL-based applications) load shared libraries and bind to
4486 them in a portable way.
4487 [Geoff Thorpe, with contributions from Richard Levitte]
4489 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4491 *) Make sure _lrotl and _lrotr are only used with MSVC.
4493 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4494 (the default implementation of RAND_status).
4496 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4497 to '-clrext' (= clear extensions), as intended and documented.
4498 [Bodo Moeller; inconsistency pointed out by Michael Attili
4501 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4502 was larger than the MD block size.
4503 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4505 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4506 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4507 using the passed key: if the passed key was a private key the result
4508 of X509_print(), for example, would be to print out all the private key
4512 *) des_quad_cksum() byte order bug fix.
4513 [Ulf Möller, using the problem description in krb4-0.9.7, where
4514 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4516 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4518 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4520 *) For easily testing in shell scripts whether some command
4521 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4522 returns with exit code 0 iff no command of the given name is available.
4523 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4524 the output goes to stdout and nothing is printed to stderr.
4525 Additional arguments are always ignored.
4527 Since for each cipher there is a command of the same name,
4528 the 'no-cipher' compilation switches can be tested this way.
4530 ('openssl no-XXX' is not able to detect pseudo-commands such
4531 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4534 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4537 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4538 is set; it will be thrown away anyway because each handshake creates
4540 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4541 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4542 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4543 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4546 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4547 'Q' and 'R' lose their special meanings (quit/renegotiate).
4548 This is part of what -quiet does; unlike -quiet, -ign_eof
4549 does not suppress any output.
4552 *) Add compatibility options to the purpose and trust code. The
4553 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4554 accepts a certificate or CA, this was the previous behaviour,
4555 with all the associated security issues.
4557 X509_TRUST_COMPAT is the old trust behaviour: only and
4558 automatically trust self signed roots in certificate store. A
4559 new trust setting X509_TRUST_DEFAULT is used to specify that
4560 a purpose has no associated trust setting and it should instead
4561 use the value in the default purpose.
4564 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4565 and fix a memory leak.
4568 *) In util/mkerr.pl (which implements 'make errors'), preserve
4569 reason strings from the previous version of the .c file, as
4570 the default to have only downcase letters (and digits) in
4571 automatically generated reasons codes is not always appropriate.
4574 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4575 using strerror. Previously, ERR_reason_error_string() returned
4576 library names as reason strings for SYSerr; but SYSerr is a special
4577 case where small numbers are errno values, not library numbers.
4580 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4581 converts DSA parameters into DH parameters. (When creating parameters,
4582 DSA_generate_parameters is used.)
4585 *) Include 'length' (recommended exponent length) in C code generated
4586 by 'openssl dhparam -C'.
4589 *) The second argument to set_label in perlasm was already being used
4590 so couldn't be used as a "file scope" flag. Moved to third argument
4594 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4595 instead of RAND_bytes for encryption IVs and salts.
4598 *) Include RAND_status() into RAND_METHOD instead of implementing
4599 it only for md_rand.c Otherwise replacing the PRNG by calling
4600 RAND_set_rand_method would be impossible.
4603 *) Don't let DSA_generate_key() enter an infinite loop if the random
4604 number generation fails.
4607 *) New 'rand' application for creating pseudo-random output.
4610 *) Added configuration support for Linux/IA64
4611 [Rolf Haberrecker <rolf@suse.de>]
4613 *) Assembler module support for Mingw32.
4616 *) Shared library support for HPUX (in shlib/).
4617 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4619 *) Shared library support for Solaris gcc.
4620 [Lutz Behnke <behnke@trustcenter.de>]
4622 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4624 *) PKCS7_encrypt() was adding text MIME headers twice because they
4625 were added manually and by SMIME_crlf_copy().
4628 *) In bntest.c don't call BN_rand with zero bits argument.
4629 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4631 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4632 case was implemented. This caused BN_div_recp() to fail occasionally.
4635 *) Add an optional second argument to the set_label() in the perl
4636 assembly language builder. If this argument exists and is set
4637 to 1 it signals that the assembler should use a symbol whose
4638 scope is the entire file, not just the current function. This
4639 is needed with MASM which uses the format label:: for this scope.
4640 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4642 *) Change the ASN1 types so they are typedefs by default. Before
4643 almost all types were #define'd to ASN1_STRING which was causing
4644 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4648 *) Change names of new functions to the new get1/get0 naming
4649 convention: After 'get1', the caller owns a reference count
4650 and has to call ..._free; 'get0' returns a pointer to some
4651 data structure without incrementing reference counters.
4652 (Some of the existing 'get' functions increment a reference
4653 counter, some don't.)
4654 Similarly, 'set1' and 'add1' functions increase reference
4655 counters or duplicate objects.
4658 *) Allow for the possibility of temp RSA key generation failure:
4659 the code used to assume it always worked and crashed on failure.
4662 *) Fix potential buffer overrun problem in BIO_printf().
4663 [Ulf Möller, using public domain code by Patrick Powell; problem
4664 pointed out by David Sacerdote <das33@cornell.edu>]
4666 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4667 RAND_egd() and RAND_status(). In the command line application,
4668 the EGD socket can be specified like a seed file using RANDFILE
4672 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4673 Some CAs (e.g. Verisign) distribute certificates in this form.
4676 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4677 list to exclude them. This means that no special compilation option
4678 is needed to use anonymous DH: it just needs to be included in the
4682 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4683 EVP_MD_type. The old functionality is available in a new macro called
4684 EVP_MD_md(). Change code that uses it and update docs.
4687 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4688 where the 'void *' argument is replaced by a function pointer argument.
4689 Previously 'void *' was abused to point to functions, which works on
4690 many platforms, but is not correct. As these functions are usually
4691 called by macros defined in OpenSSL header files, most source code
4692 should work without changes.
4695 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4696 sections with information on -D... compiler switches used for
4697 compiling the library so that applications can see them. To enable
4698 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4699 must be defined. E.g.,
4700 #define OPENSSL_ALGORITHM_DEFINES
4701 #include <openssl/opensslconf.h>
4702 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4703 [Richard Levitte, Ulf and Bodo Möller]
4705 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4709 *) Change the 'other' type in certificate aux info to a STACK_OF
4710 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4711 the required ASN1 format: arbitrary types determined by an OID.
4714 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4715 argument to 'req'. This is not because the function is newer or
4716 better than others it just uses the work 'NEW' in the certificate
4717 request header lines. Some software needs this.
4720 *) Reorganise password command line arguments: now passwords can be
4721 obtained from various sources. Delete the PEM_cb function and make
4722 it the default behaviour: i.e. if the callback is NULL and the
4723 usrdata argument is not NULL interpret it as a null terminated pass
4724 phrase. If usrdata and the callback are NULL then the pass phrase
4725 is prompted for as usual.
4728 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4729 the support is automatically enabled. The resulting binaries will
4730 autodetect the card and use it if present.
4731 [Ben Laurie and Compaq Inc.]
4733 *) Work around for Netscape hang bug. This sends certificate request
4734 and server done in one record. Since this is perfectly legal in the
4735 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4736 the bugs/SSLv3 entry for more info.
4739 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4742 *) Add -rand argument to smime and pkcs12 applications and read/write
4746 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4749 *) Add command line password options to the remaining applications.
4752 *) Bug fix for BN_div_recp() for numerators with an even number of
4756 *) More tests in bntest.c, and changed test_bn output.
4759 *) ./config recognizes MacOS X now.
4762 *) Bug fix for BN_div() when the first words of num and divsor are
4763 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4766 *) Add support for various broken PKCS#8 formats, and command line
4767 options to produce them.
4770 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4771 get temporary BIGNUMs from a BN_CTX.
4774 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4778 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4779 include a #define from the old name to the new. The original intent
4780 was that statically linked binaries could for example just call
4781 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4782 link with digests. This never worked becayse SSLeay_add_all_digests()
4783 and SSLeay_add_all_ciphers() were in the same source file so calling
4784 one would link with the other. They are now in separate source files.
4787 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4790 *) Use a less unusual form of the Miller-Rabin primality test (it used
4791 a binary algorithm for exponentiation integrated into the Miller-Rabin
4792 loop, our standard modexp algorithms are faster).
4795 *) Support for the EBCDIC character set completed.
4796 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4798 *) Source code cleanups: use const where appropriate, eliminate casts,
4799 use void * instead of char * in lhash.
4802 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4803 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4804 this the server could overwrite ephemeral keys that the client
4808 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4809 using 50 iterations of the Rabin-Miller test.
4811 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4812 iterations of the Rabin-Miller test as required by the appendix
4813 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4814 As BN_is_prime_fasttest includes trial division, DSA parameter
4815 generation becomes much faster.
4817 This implies a change for the callback functions in DSA_is_prime
4818 and DSA_generate_parameters: The callback function is called once
4819 for each positive witness in the Rabin-Miller test, not just
4820 occasionally in the inner loop; and the parameters to the
4821 callback function now provide an iteration count for the outer
4822 loop rather than for the current invocation of the inner loop.
4823 DSA_generate_parameters additionally can call the callback
4824 function with an 'iteration count' of -1, meaning that a
4825 candidate has passed the trial division test (when q is generated
4826 from an application-provided seed, trial division is skipped).
4829 *) New function BN_is_prime_fasttest that optionally does trial
4830 division before starting the Rabin-Miller test and has
4831 an additional BN_CTX * argument (whereas BN_is_prime always
4832 has to allocate at least one BN_CTX).
4833 'callback(1, -1, cb_arg)' is called when a number has passed the
4834 trial division stage.
4837 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4841 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4844 *) New function BN_pseudo_rand().
4847 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4848 bignum version of BN_from_montgomery() with the working code from
4849 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4853 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4854 made it impossible to use the same SSL_SESSION data structure in
4855 SSL2 clients in multiple threads.
4858 *) The return value of RAND_load_file() no longer counts bytes obtained
4859 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4860 to seed the PRNG (previously an explicit byte count was required).
4861 [Ulf Möller, Bodo Möller]
4863 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4864 used (char *) instead of (void *) and had casts all over the place.
4867 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4870 *) Retain source code compatibility for BN_prime_checks macro:
4871 BN_is_prime(..., BN_prime_checks, ...) now uses
4872 BN_prime_checks_for_size to determine the appropriate number of
4873 Rabin-Miller iterations.
4876 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4877 DH_CHECK_P_NOT_SAFE_PRIME.
4878 (Check if this is true? OpenPGP calls them "strong".)
4881 *) Merge the functionality of "dh" and "gendh" programs into a new program
4882 "dhparam". The old programs are retained for now but will handle DH keys
4883 (instead of parameters) in future.
4886 *) Make the ciphers, s_server and s_client programs check the return values
4887 when a new cipher list is set.
4890 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4891 ciphers. Before when the 56bit ciphers were enabled the sorting was
4894 The syntax for the cipher sorting has been extended to support sorting by
4895 cipher-strength (using the strength_bits hard coded in the tables).
4896 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4898 Fix a bug in the cipher-command parser: when supplying a cipher command
4899 string with an "undefined" symbol (neither command nor alphanumeric
4900 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4901 an error is flagged.
4903 Due to the strength-sorting extension, the code of the
4904 ssl_create_cipher_list() function was completely rearranged. I hope that
4905 the readability was also increased :-)
4906 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4908 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4909 for the first serial number and places 2 in the serial number file. This
4910 avoids problems when the root CA is created with serial number zero and
4911 the first user certificate has the same issuer name and serial number
4915 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4916 the new code. Add documentation for this stuff.
4919 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4920 X509_*() to X509at_*() on the grounds that they don't handle X509
4921 structures and behave in an analagous way to the X509v3 functions:
4922 they shouldn't be called directly but wrapper functions should be used
4925 So we also now have some wrapper functions that call the X509at functions
4926 when passed certificate requests. (TO DO: similar things can be done with
4927 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4928 things. Some of these need some d2i or i2d and print functionality
4929 because they handle more complex structures.)
4932 *) Add missing #ifndefs that caused missing symbols when building libssl
4933 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4934 NO_RSA in ssl/s2*.c.
4935 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4937 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4938 has a return value which indicates the quality of the random data
4939 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4940 error queue. New function RAND_pseudo_bytes() generates output that is
4941 guaranteed to be unique but not unpredictable. RAND_add is like
4942 RAND_seed, but takes an extra argument for an entropy estimate
4943 (RAND_seed always assumes full entropy).
4946 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4947 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4948 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4949 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4950 false-positive rate of at most 2^-80 for random input.
4953 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4956 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4957 in the 0.9.5 release), this returns the chain
4958 from an X509_CTX structure with a dup of the stack and all
4959 the X509 reference counts upped: so the stack will exist
4960 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4963 Also make SSL_SESSION_print() print out the verify return
4967 *) Add manpage for the pkcs12 command. Also change the default
4968 behaviour so MAC iteration counts are used unless the new
4969 -nomaciter option is used. This improves file security and
4970 only older versions of MSIE (4.0 for example) need it.
4973 *) Honor the no-xxx Configure options when creating .DEF files.
4976 *) Add PKCS#10 attributes to field table: challengePassword,
4977 unstructuredName and unstructuredAddress. These are taken from
4978 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4979 international characters are used.
4981 More changes to X509_ATTRIBUTE code: allow the setting of types
4982 based on strings. Remove the 'loc' parameter when adding
4983 attributes because these will be a SET OF encoding which is sorted
4987 *) Initial changes to the 'req' utility to allow request generation
4988 automation. This will allow an application to just generate a template
4989 file containing all the field values and have req construct the
4992 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4993 used all over the place including certificate requests and PKCS#7
4994 structures. They are currently handled manually where necessary with
4995 some primitive wrappers for PKCS#7. The new functions behave in a
4996 manner analogous to the X509 extension functions: they allow
4997 attributes to be looked up by NID and added.
4999 Later something similar to the X509V3 code would be desirable to
5000 automatically handle the encoding, decoding and printing of the
5001 more complex types. The string types like challengePassword can
5002 be handled by the string table functions.
5004 Also modified the multi byte string table handling. Now there is
5005 a 'global mask' which masks out certain types. The table itself
5006 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5007 is useful when for example there is only one permissible type
5008 (as in countryName) and using the mask might result in no valid
5012 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5013 SSL_get_peer_finished to allow applications to obtain the latest
5014 Finished messages sent to the peer or expected from the peer,
5015 respectively. (SSL_get_peer_finished is usually the Finished message
5016 actually received from the peer, otherwise the protocol will be aborted.)
5018 As the Finished message are message digests of the complete handshake
5019 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5020 be used for external authentication procedures when the authentication
5021 provided by SSL/TLS is not desired or is not enough.
5024 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5025 the host supports BWX extension and if Compaq C is present on the
5026 $PATH. Just exploiting of the BWX extension results in 20-30%
5027 performance kick for some algorithms, e.g. DES and RC4 to mention
5028 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5032 *) Add support for MS "fast SGC". This is arguably a violation of the
5033 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5034 weak crypto and after checking the certificate is SGC a second one
5035 with strong crypto. MS SGC stops the first handshake after receiving
5036 the server certificate message and sends a second client hello. Since
5037 a server will typically do all the time consuming operations before
5038 expecting any further messages from the client (server key exchange
5039 is the most expensive) there is little difference between the two.
5041 To get OpenSSL to support MS SGC we have to permit a second client
5042 hello message after we have sent server done. In addition we have to
5043 reset the MAC if we do get this second client hello.
5046 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5047 if a DER encoded private key is RSA or DSA traditional format. Changed
5048 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5049 format DER encoded private key. Newer code should use PKCS#8 format which
5050 has the key type encoded in the ASN1 structure. Added DER private key
5051 support to pkcs8 application.
5054 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5055 ciphersuites has been selected (as required by the SSL 3/TLS 1
5056 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5057 is set, we interpret this as a request to violate the specification
5058 (the worst that can happen is a handshake failure, and 'correct'
5059 behaviour would result in a handshake failure anyway).
5062 *) In SSL_CTX_add_session, take into account that there might be multiple
5063 SSL_SESSION structures with the same session ID (e.g. when two threads
5064 concurrently obtain them from an external cache).
5065 The internal cache can handle only one SSL_SESSION with a given ID,
5066 so if there's a conflict, we now throw out the old one to achieve
5070 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5071 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5072 some routines that use cipher OIDs: some ciphers do not have OIDs
5073 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5077 *) Simplify the trust setting structure and code. Now we just have
5078 two sequences of OIDs for trusted and rejected settings. These will
5079 typically have values the same as the extended key usage extension
5080 and any application specific purposes.
5082 The trust checking code now has a default behaviour: it will just
5083 check for an object with the same NID as the passed id. Functions can
5084 be provided to override either the default behaviour or the behaviour
5085 for a given id. SSL client, server and email already have functions
5086 in place for compatibility: they check the NID and also return "trusted"
5087 if the certificate is self signed.
5090 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5091 traditional format into an EVP_PKEY structure.
5094 *) Add a password callback function PEM_cb() which either prompts for
5095 a password if usr_data is NULL or otherwise assumes it is a null
5096 terminated password. Allow passwords to be passed on command line
5097 environment or config files in a few more utilities.
5100 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5101 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5102 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5103 Update documentation.
5106 *) Support for ASN1 "NULL" type. This could be handled before by using
5107 ASN1_TYPE but there wasn't any function that would try to read a NULL
5108 and produce an error if it couldn't. For compatibility we also have
5109 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5110 don't allocate anything because they don't need to.
5113 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5115 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5117 *) Rebuild of the memory allocation routines used by OpenSSL code and
5118 possibly others as well. The purpose is to make an interface that
5119 provide hooks so anyone can build a separate set of allocation and
5120 deallocation routines to be used by OpenSSL, for example memory
5121 pool implementations, or something else, which was previously hard
5122 since Malloc(), Realloc() and Free() were defined as macros having
5123 the values malloc, realloc and free, respectively (except for Win32
5124 compilations). The same is provided for memory debugging code.
5125 OpenSSL already comes with functionality to find memory leaks, but
5126 this gives people a chance to debug other memory problems.
5128 With these changes, a new set of functions and macros have appeared:
5130 CRYPTO_set_mem_debug_functions() [F]
5131 CRYPTO_get_mem_debug_functions() [F]
5132 CRYPTO_dbg_set_options() [F]
5133 CRYPTO_dbg_get_options() [F]
5134 CRYPTO_malloc_debug_init() [M]
5136 The memory debug functions are NULL by default, unless the library
5137 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5138 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5139 gives the standard debugging functions that come with OpenSSL) or
5140 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5141 provided by the library user) must be used. When the standard
5142 debugging functions are used, CRYPTO_dbg_set_options can be used to
5143 request additional information:
5144 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5145 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5147 Also, things like CRYPTO_set_mem_functions will always give the
5148 expected result (the new set of functions is used for allocation
5149 and deallocation) at all times, regardless of platform and compiler
5152 To finish it up, some functions that were never use in any other
5153 way than through macros have a new API and new semantic:
5156 CRYPTO_dbg_realloc()
5159 All macros of value have retained their old syntax.
5160 [Richard Levitte and Bodo Moeller]
5162 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5163 ordering of SMIMECapabilities wasn't in "strength order" and there
5164 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5168 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5169 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5170 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5172 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5173 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5174 functionality to handle multipart/signed properly) and a utility
5175 called 'smime' to call all this stuff. This is based on code I
5176 originally wrote for Celo who have kindly allowed it to be
5177 included in OpenSSL.
5180 *) Add variants des_set_key_checked and des_set_key_unchecked of
5181 des_set_key (aka des_key_sched). Global variable des_check_key
5182 decides which of these is called by des_set_key; this way
5183 des_check_key behaves as it always did, but applications and
5184 the library itself, which was buggy for des_check_key == 1,
5185 have a cleaner way to pick the version they need.
5188 *) New function PKCS12_newpass() which changes the password of a
5192 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5193 dynamic mix. In both cases the ids can be used as an index into the
5194 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5195 functions so they accept a list of the field values and the
5196 application doesn't need to directly manipulate the X509_TRUST
5200 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5204 *) Modify the way the V3 extension code looks up extensions. This now
5205 works in a similar way to the object code: we have some "standard"
5206 extensions in a static table which is searched with OBJ_bsearch()
5207 and the application can add dynamic ones if needed. The file
5208 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5209 updated whenever a new extension is added to the core code and kept
5210 in ext_nid order. There is a simple program 'tabtest.c' which checks
5211 this. New extensions are not added too often so this file can readily
5212 be maintained manually.
5214 There are two big advantages in doing things this way. The extensions
5215 can be looked up immediately and no longer need to be "added" using
5216 X509V3_add_standard_extensions(): this function now does nothing.
5217 [Side note: I get *lots* of email saying the extension code doesn't
5218 work because people forget to call this function]
5219 Also no dynamic allocation is done unless new extensions are added:
5220 so if we don't add custom extensions there is no need to call
5221 X509V3_EXT_cleanup().
5224 *) Modify enc utility's salting as follows: make salting the default. Add a
5225 magic header, so unsalted files fail gracefully instead of just decrypting
5226 to garbage. This is because not salting is a big security hole, so people
5227 should be discouraged from doing it.
5230 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5231 digest to be passed on the command line but it only used this
5232 parameter when signing a certificate. Modified so all relevant
5233 operations are affected by the digest parameter including the
5234 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5235 DSA key was used because it didn't fix the digest.
5238 *) Initial certificate chain verify code. Currently tests the untrusted
5239 certificates for consistency with the verify purpose (which is set
5240 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5242 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5243 this is because it will reject chains with invalid extensions whereas
5244 every previous version of OpenSSL and SSLeay made no checks at all.
5246 Trust code: checks the root CA for the relevant trust settings. Trust
5247 settings have an initial value consistent with the verify purpose: e.g.
5248 if the verify purpose is for SSL client use it expects the CA to be
5249 trusted for SSL client use. However the default value can be changed to
5250 permit custom trust settings: one example of this would be to only trust
5251 certificates from a specific "secure" set of CAs.
5253 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5254 which should be used for version portability: especially since the
5255 verify structure is likely to change more often now.
5257 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5258 to set them. If not set then assume SSL clients will verify SSL servers
5261 Two new options to the verify program: -untrusted allows a set of
5262 untrusted certificates to be passed in and -purpose which sets the
5263 intended purpose of the certificate. If a purpose is set then the
5264 new chain verify code is used to check extension consistency.
5267 *) Support for the authority information access extension.
5270 *) Modify RSA and DSA PEM read routines to transparently handle
5271 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5272 public keys in a format compatible with certificate
5273 SubjectPublicKeyInfo structures. Unfortunately there were already
5274 functions called *_PublicKey_* which used various odd formats so
5275 these are retained for compatibility: however the DSA variants were
5276 never in a public release so they have been deleted. Changed dsa/rsa
5277 utilities to handle the new format: note no releases ever handled public
5278 keys so we should be OK.
5280 The primary motivation for this change is to avoid the same fiasco
5281 that dogs private keys: there are several incompatible private key
5282 formats some of which are standard and some OpenSSL specific and
5283 require various evil hacks to allow partial transparent handling and
5284 even then it doesn't work with DER formats. Given the option anything
5285 other than PKCS#8 should be dumped: but the other formats have to
5286 stay in the name of compatibility.
5288 With public keys and the benefit of hindsight one standard format
5289 is used which works with EVP_PKEY, RSA or DSA structures: though
5290 it clearly returns an error if you try to read the wrong kind of key.
5292 Added a -pubkey option to the 'x509' utility to output the public key.
5293 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5294 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5295 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5296 that do the same as the EVP_PKEY_assign_*() except they up the
5297 reference count of the added key (they don't "swallow" the
5301 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5302 CRLs would fail if the file contained no certificates or no CRLs:
5303 added a new function to read in both types and return the number
5304 read: this means that if none are read it will be an error. The
5305 DER versions of the certificate and CRL reader would always fail
5306 because it isn't possible to mix certificates and CRLs in DER format
5307 without choking one or the other routine. Changed this to just read
5308 a certificate: this is the best we can do. Also modified the code
5309 in apps/verify.c to take notice of return codes: it was previously
5310 attempting to read in certificates from NULL pointers and ignoring
5311 any errors: this is one reason why the cert and CRL reader seemed
5312 to work. It doesn't check return codes from the default certificate
5313 routines: these may well fail if the certificates aren't installed.
5316 *) Code to support otherName option in GeneralName.
5319 *) First update to verify code. Change the verify utility
5320 so it warns if it is passed a self signed certificate:
5321 for consistency with the normal behaviour. X509_verify
5322 has been modified to it will now verify a self signed
5323 certificate if *exactly* the same certificate appears
5324 in the store: it was previously impossible to trust a
5325 single self signed certificate. This means that:
5326 openssl verify ss.pem
5327 now gives a warning about a self signed certificate but
5328 openssl verify -CAfile ss.pem ss.pem
5332 *) For servers, store verify_result in SSL_SESSION data structure
5333 (and add it to external session representation).
5334 This is needed when client certificate verifications fails,
5335 but an application-provided verification callback (set by
5336 SSL_CTX_set_cert_verify_callback) allows accepting the session
5337 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5338 but returns 1): When the session is reused, we have to set
5339 ssl->verify_result to the appropriate error code to avoid
5341 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5343 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5344 case in PKCS7_dataInit() where the signed PKCS7 structure
5345 didn't contain any existing data because it was being created.
5346 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5348 *) Add a salt to the key derivation routines in enc.c. This
5349 forms the first 8 bytes of the encrypted file. Also add a
5350 -S option to allow a salt to be input on the command line.
5353 *) New function X509_cmp(). Oddly enough there wasn't a function
5354 to compare two certificates. We do this by working out the SHA1
5355 hash and comparing that. X509_cmp() will be needed by the trust
5359 *) SSL_get1_session() is like SSL_get_session(), but increments
5360 the reference count in the SSL_SESSION returned.
5361 [Geoff Thorpe <geoff@eu.c2.net>]
5363 *) Fix for 'req': it was adding a null to request attributes.
5364 Also change the X509_LOOKUP and X509_INFO code to handle
5365 certificate auxiliary information.
5368 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5372 *) Add the possibility to add extra information to the memory leak
5373 detecting output, to form tracebacks, showing from where each
5374 allocation was originated: CRYPTO_push_info("constant string") adds
5375 the string plus current file name and line number to a per-thread
5376 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5377 is like calling CYRPTO_pop_info() until the stack is empty.
5378 Also updated memory leak detection code to be multi-thread-safe.
5381 *) Add options -text and -noout to pkcs7 utility and delete the
5382 encryption options which never did anything. Update docs.
5385 *) Add options to some of the utilities to allow the pass phrase
5386 to be included on either the command line (not recommended on
5387 OSes like Unix) or read from the environment. Update the
5388 manpages and fix a few bugs.
5391 *) Add a few manpages for some of the openssl commands.
5394 *) Fix the -revoke option in ca. It was freeing up memory twice,
5395 leaking and not finding already revoked certificates.
5398 *) Extensive changes to support certificate auxiliary information.
5399 This involves the use of X509_CERT_AUX structure and X509_AUX
5400 functions. An X509_AUX function such as PEM_read_X509_AUX()
5401 can still read in a certificate file in the usual way but it
5402 will also read in any additional "auxiliary information". By
5403 doing things this way a fair degree of compatibility can be
5404 retained: existing certificates can have this information added
5405 using the new 'x509' options.
5407 Current auxiliary information includes an "alias" and some trust
5408 settings. The trust settings will ultimately be used in enhanced
5409 certificate chain verification routines: currently a certificate
5410 can only be trusted if it is self signed and then it is trusted
5414 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5415 The problem was that one of the replacement routines had not been working
5416 since SSLeay releases. For now the offending routine has been replaced
5417 with non-optimised assembler. Even so, this now gives around 95%
5418 performance improvement for 1024 bit RSA signs.
5421 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5422 handling. Most clients have the effective key size in bits equal to
5423 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5424 A few however don't do this and instead use the size of the decrypted key
5425 to determine the RC2 key length and the AlgorithmIdentifier to determine
5426 the effective key length. In this case the effective key length can still
5427 be 40 bits but the key length can be 168 bits for example. This is fixed
5428 by manually forcing an RC2 key into the EVP_PKEY structure because the
5429 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5430 the key length and effective key length are equal.
5433 *) Add a bunch of functions that should simplify the creation of
5434 X509_NAME structures. Now you should be able to do:
5435 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5436 and have it automatically work out the correct field type and fill in
5437 the structures. The more adventurous can try:
5438 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5439 and it will (hopefully) work out the correct multibyte encoding.
5442 *) Change the 'req' utility to use the new field handling and multibyte
5443 copy routines. Before the DN field creation was handled in an ad hoc
5444 way in req, ca, and x509 which was rather broken and didn't support
5445 BMPStrings or UTF8Strings. Since some software doesn't implement
5446 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5447 using the dirstring_type option. See the new comment in the default
5448 openssl.cnf for more info.
5451 *) Make crypto/rand/md_rand.c more robust:
5452 - Assure unique random numbers after fork().
5453 - Make sure that concurrent threads access the global counter and
5454 md serializably so that we never lose entropy in them
5455 or use exactly the same state in multiple threads.
5456 Access to the large state is not always serializable because
5457 the additional locking could be a performance killer, and
5458 md should be large enough anyway.
5461 *) New file apps/app_rand.c with commonly needed functionality
5462 for handling the random seed file.
5464 Use the random seed file in some applications that previously did not:
5466 dsaparam -genkey (which also ignored its '-rand' option),
5469 x509 (when signing).
5470 Except on systems with /dev/urandom, it is crucial to have a random
5471 seed file at least for key creation, DSA signing, and for DH exchanges;
5472 for RSA signatures we could do without one.
5474 gendh and gendsa (unlike genrsa) used to read only the first byte
5475 of each file listed in the '-rand' option. The function as previously
5476 found in genrsa is now in app_rand.c and is used by all programs
5477 that support '-rand'.
5480 *) In RAND_write_file, use mode 0600 for creating files;
5481 don't just chmod when it may be too late.
5484 *) Report an error from X509_STORE_load_locations
5485 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5488 *) New function ASN1_mbstring_copy() this copies a string in either
5489 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5490 into an ASN1_STRING type. A mask of permissible types is passed
5491 and it chooses the "minimal" type to use or an error if not type
5495 *) Add function equivalents to the various macros in asn1.h. The old
5496 macros are retained with an M_ prefix. Code inside the library can
5497 use the M_ macros. External code (including the openssl utility)
5498 should *NOT* in order to be "shared library friendly".
5501 *) Add various functions that can check a certificate's extensions
5502 to see if it usable for various purposes such as SSL client,
5503 server or S/MIME and CAs of these types. This is currently
5504 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5505 verification. Also added a -purpose flag to x509 utility to
5506 print out all the purposes.
5509 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5513 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5514 for, obtain and decode and extension and obtain its critical flag.
5515 This allows all the necessary extension code to be handled in a
5516 single function call.
5519 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5520 platforms. See crypto/rc4/rc4_enc.c for further details.
5523 *) New -noout option to asn1parse. This causes no output to be produced
5524 its main use is when combined with -strparse and -out to extract data
5525 from a file (which may not be in ASN.1 format).
5528 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5529 when producing the local key id.
5530 [Richard Levitte <levitte@stacken.kth.se>]
5532 *) New option -dhparam in s_server. This allows a DH parameter file to be
5533 stated explicitly. If it is not stated then it tries the first server
5534 certificate file. The previous behaviour hard coded the filename
5538 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5539 a public key to be input or output. For example:
5540 openssl rsa -in key.pem -pubout -out pubkey.pem
5541 Also added necessary DSA public key functions to handle this.
5544 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5545 in the message. This was handled by allowing
5546 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5547 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5549 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5550 to the end of the strings whereas this didn't. This would cause problems
5551 if strings read with d2i_ASN1_bytes() were later modified.
5552 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5554 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5555 data and it contains EOF it will end up returning an error. This is
5556 caused by input 46 bytes long. The cause is due to the way base64
5557 BIOs find the start of base64 encoded data. They do this by trying a
5558 trial decode on each line until they find one that works. When they
5559 do a flag is set and it starts again knowing it can pass all the
5560 data directly through the decoder. Unfortunately it doesn't reset
5561 the context it uses. This means that if EOF is reached an attempt
5562 is made to pass two EOFs through the context and this causes the
5563 resulting error. This can also cause other problems as well. As is
5564 usual with these problems it takes *ages* to find and the fix is
5565 trivial: move one line.
5566 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5568 *) Ugly workaround to get s_client and s_server working under Windows. The
5569 old code wouldn't work because it needed to select() on sockets and the
5570 tty (for keypresses and to see if data could be written). Win32 only
5571 supports select() on sockets so we select() with a 1s timeout on the
5572 sockets and then see if any characters are waiting to be read, if none
5573 are present then we retry, we also assume we can always write data to
5574 the tty. This isn't nice because the code then blocks until we've
5575 received a complete line of data and it is effectively polling the
5576 keyboard at 1s intervals: however it's quite a bit better than not
5577 working at all :-) A dedicated Windows application might handle this
5578 with an event loop for example.
5581 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5582 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5583 will be called when RSA_sign() and RSA_verify() are used. This is useful
5584 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5585 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5586 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5587 This necessitated the support of an extra signature type NID_md5_sha1
5588 for SSL signatures and modifications to the SSL library to use it instead
5589 of calling RSA_public_decrypt() and RSA_private_encrypt().
5592 *) Add new -verify -CAfile and -CApath options to the crl program, these
5593 will lookup a CRL issuers certificate and verify the signature in a
5594 similar way to the verify program. Tidy up the crl program so it
5595 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5596 less strict. It will now permit CRL extensions even if it is not
5597 a V2 CRL: this will allow it to tolerate some broken CRLs.
5600 *) Initialize all non-automatic variables each time one of the openssl
5601 sub-programs is started (this is necessary as they may be started
5602 multiple times from the "OpenSSL>" prompt).
5603 [Lennart Bang, Bodo Moeller]
5605 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5606 removing all other RSA functionality (this is what NO_RSA does). This
5607 is so (for example) those in the US can disable those operations covered
5608 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5612 *) Non-copying interface to BIO pairs.
5613 (still largely untested)
5616 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5617 ASCII string. This was handled independently in various places before.
5620 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5621 UTF8 strings a character at a time.
5624 *) Use client_version from client hello to select the protocol
5625 (s23_srvr.c) and for RSA client key exchange verification
5626 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5629 *) Add various utility functions to handle SPKACs, these were previously
5630 handled by poking round in the structure internals. Added new function
5631 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5632 print, verify and generate SPKACs. Based on an original idea from
5633 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5636 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5639 *) Allow the config file extension section to be overwritten on the
5640 command line. Based on an original idea from Massimiliano Pala
5641 <madwolf@comune.modena.it>. The new option is called -extensions
5642 and can be applied to ca, req and x509. Also -reqexts to override
5643 the request extensions in req and -crlexts to override the crl extensions
5647 *) Add new feature to the SPKAC handling in ca. Now you can include
5648 the same field multiple times by preceding it by "XXXX." for example:
5651 this is the same syntax as used in the req config file.
5654 *) Allow certificate extensions to be added to certificate requests. These
5655 are specified in a 'req_extensions' option of the req section of the
5656 config file. They can be printed out with the -text option to req but
5657 are otherwise ignored at present.
5660 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5661 data read consists of only the final block it would not decrypted because
5662 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5663 A misplaced 'break' also meant the decrypted final block might not be
5664 copied until the next read.
5667 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5668 a few extra parameters to the DH structure: these will be useful if
5669 for example we want the value of 'q' or implement X9.42 DH.
5672 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5673 provides hooks that allow the default DSA functions or functions on a
5674 "per key" basis to be replaced. This allows hardware acceleration and
5675 hardware key storage to be handled without major modification to the
5676 library. Also added low level modexp hooks and CRYPTO_EX structure and
5677 associated functions.
5680 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5681 as "read only": it can't be written to and the buffer it points to will
5682 not be freed. Reading from a read only BIO is much more efficient than
5683 a normal memory BIO. This was added because there are several times when
5684 an area of memory needs to be read from a BIO. The previous method was
5685 to create a memory BIO and write the data to it, this results in two
5686 copies of the data and an O(n^2) reading algorithm. There is a new
5687 function BIO_new_mem_buf() which creates a read only memory BIO from
5688 an area of memory. Also modified the PKCS#7 routines to use read only
5692 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5693 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5694 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5695 but a retry condition occured while trying to read the rest.
5698 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5699 NID_pkcs7_encrypted by default: this was wrong since this should almost
5700 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5701 the encrypted data type: this is a more sensible place to put it and it
5702 allows the PKCS#12 code to be tidied up that duplicated this
5706 *) Changed obj_dat.pl script so it takes its input and output files on
5707 the command line. This should avoid shell escape redirection problems
5711 *) Initial support for certificate extension requests, these are included
5712 in things like Xenroll certificate requests. Included functions to allow
5713 extensions to be obtained and added.
5716 *) -crlf option to s_client and s_server for sending newlines as
5717 CRLF (as required by many protocols).
5720 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5722 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5723 [Ralf S. Engelschall]
5725 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5726 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5728 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5732 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5733 DH parameters/keys (q is lost during that conversion, but the resulting
5734 DH parameters contain its length).
5736 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5737 much faster than DH_generate_parameters (which creates parameters
5738 where p = 2*q + 1), and also the smaller q makes DH computations
5739 much more efficient (160-bit exponentiation instead of 1024-bit
5740 exponentiation); so this provides a convenient way to support DHE
5741 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5742 utter importance to use
5743 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5745 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5746 when such DH parameters are used, because otherwise small subgroup
5747 attacks may become possible!
5750 *) Avoid memory leak in i2d_DHparams.
5753 *) Allow the -k option to be used more than once in the enc program:
5754 this allows the same encrypted message to be read by multiple recipients.
5757 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5758 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5759 it will always use the numerical form of the OID, even if it has a short
5763 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5764 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5765 otherwise bn_mod_exp was called. In the case of hardware keys for example
5766 no private key components need be present and it might store extra data
5767 in the RSA structure, which cannot be accessed from bn_mod_exp.
5768 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5769 private key operations.
5772 *) Added support for SPARC Linux.
5775 *) pem_password_cb function type incompatibly changed from
5776 typedef int pem_password_cb(char *buf, int size, int rwflag);
5778 ....(char *buf, int size, int rwflag, void *userdata);
5779 so that applications can pass data to their callbacks:
5780 The PEM[_ASN1]_{read,write}... functions and macros now take an
5781 additional void * argument, which is just handed through whenever
5782 the password callback is called.
5783 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5785 New function SSL_CTX_set_default_passwd_cb_userdata.
5787 Compatibility note: As many C implementations push function arguments
5788 onto the stack in reverse order, the new library version is likely to
5789 interoperate with programs that have been compiled with the old
5790 pem_password_cb definition (PEM_whatever takes some data that
5791 happens to be on the stack as its last argument, and the callback
5792 just ignores this garbage); but there is no guarantee whatsoever that
5795 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5796 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5797 problems not only on Windows, but also on some Unix platforms.
5798 To avoid problematic command lines, these definitions are now in an
5799 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5800 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5803 *) MIPS III/IV assembler module is reimplemented.
5806 *) More DES library cleanups: remove references to srand/rand and
5807 delete an unused file.
5810 *) Add support for the the free Netwide assembler (NASM) under Win32,
5811 since not many people have MASM (ml) and it can be hard to obtain.
5812 This is currently experimental but it seems to work OK and pass all
5813 the tests. Check out INSTALL.W32 for info.
5816 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5817 without temporary keys kept an extra copy of the server key,
5818 and connections with temporary keys did not free everything in case
5822 *) New function RSA_check_key and new openssl rsa option -check
5823 for verifying the consistency of RSA keys.
5824 [Ulf Moeller, Bodo Moeller]
5826 *) Various changes to make Win32 compile work:
5827 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5828 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5829 comparison" warnings.
5830 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5833 *) Add a debugging option to PKCS#5 v2 key generation function: when
5834 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5835 derived keys are printed to stderr.
5838 *) Copy the flags in ASN1_STRING_dup().
5839 [Roman E. Pavlov <pre@mo.msk.ru>]
5841 *) The x509 application mishandled signing requests containing DSA
5842 keys when the signing key was also DSA and the parameters didn't match.
5844 It was supposed to omit the parameters when they matched the signing key:
5845 the verifying software was then supposed to automatically use the CA's
5846 parameters if they were absent from the end user certificate.
5848 Omitting parameters is no longer recommended. The test was also
5849 the wrong way round! This was probably due to unusual behaviour in
5850 EVP_cmp_parameters() which returns 1 if the parameters match.
5851 This meant that parameters were omitted when they *didn't* match and
5852 the certificate was useless. Certificates signed with 'ca' didn't have
5854 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5856 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5857 The interface is as follows:
5858 Applications can use
5859 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5860 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5861 "off" is now the default.
5862 The library internally uses
5863 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5864 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5865 to disable memory-checking temporarily.
5867 Some inconsistent states that previously were possible (and were
5868 even the default) are now avoided.
5870 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5871 with each memory chunk allocated; this is occasionally more helpful
5872 than just having a counter.
5874 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5876 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5880 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5881 which largely parallels "options", but is for changing API behaviour,
5882 whereas "options" are about protocol behaviour.
5883 Initial "mode" flags are:
5885 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5886 a single record has been written.
5887 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5888 retries use the same buffer location.
5889 (But all of the contents must be
5893 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5896 *) Fix problems with no-hmac etc.
5897 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5899 *) New functions RSA_get_default_method(), RSA_set_method() and
5900 RSA_get_method(). These allows replacement of RSA_METHODs without having
5901 to mess around with the internals of an RSA structure.
5904 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5905 Also really enable memory leak checks in openssl.c and in some
5907 [Chad C. Mulligan, Bodo Moeller]
5909 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5910 up the length of negative integers. This has now been simplified to just
5911 store the length when it is first determined and use it later, rather
5912 than trying to keep track of where data is copied and updating it to
5914 [Steve Henson, reported by Brien Wheeler
5915 <bwheeler@authentica-security.com>]
5917 *) Add a new function PKCS7_signatureVerify. This allows the verification
5918 of a PKCS#7 signature but with the signing certificate passed to the
5919 function itself. This contrasts with PKCS7_dataVerify which assumes the
5920 certificate is present in the PKCS#7 structure. This isn't always the
5921 case: certificates can be omitted from a PKCS#7 structure and be
5922 distributed by "out of band" means (such as a certificate database).
5925 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5926 function prototypes in pem.h, also change util/mkdef.pl to add the
5927 necessary function names.
5930 *) mk1mf.pl (used by Windows builds) did not properly read the
5931 options set by Configure in the top level Makefile, and Configure
5932 was not even able to write more than one option correctly.
5933 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5936 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5937 file to be loaded from a BIO or FILE pointer. The BIO version will
5938 for example allow memory BIOs to contain config info.
5941 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5942 Whoever hopes to achieve shared-library compatibility across versions
5943 must use this, not the compile-time macro.
5944 (Exercise 0.9.4: Which is the minimum library version required by
5946 Note: All this applies only to multi-threaded programs, others don't
5950 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5951 through a BIO pair triggered the default case, i.e.
5952 SSLerr(...,SSL_R_UNKNOWN_STATE).
5955 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5956 can use the SSL library even if none of the specific BIOs is
5960 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5961 for the encoded length.
5962 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5964 *) Add initial documentation of the X509V3 functions.
5967 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5968 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5969 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5970 secure PKCS#8 private key format with a high iteration count.
5973 *) Fix determination of Perl interpreter: A perl or perl5
5974 _directory_ in $PATH was also accepted as the interpreter.
5975 [Ralf S. Engelschall]
5977 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5978 wrong with it but it was very old and did things like calling
5979 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5983 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5984 to use the new extension code.
5987 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5988 with macros. This should make it easier to change their form, add extra
5989 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5993 *) Add to configuration table a new entry that can specify an alternative
5994 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5995 according to Mark Crispin <MRC@Panda.COM>.
5999 *) DES CBC did not update the IV. Weird.
6002 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6003 Changing the behaviour of the former might break existing programs --
6004 where IV updating is needed, des_ncbc_encrypt can be used.
6007 *) When bntest is run from "make test" it drives bc to check its
6008 calculations, as well as internally checking them. If an internal check
6009 fails, it needs to cause bc to give a non-zero result or make test carries
6010 on without noticing the failure. Fixed.
6013 *) DES library cleanups.
6016 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6017 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6018 ciphers. NOTE: although the key derivation function has been verified
6019 against some published test vectors it has not been extensively tested
6020 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6024 *) Instead of "mkdir -p", which is not fully portable, use new
6025 Perl script "util/mkdir-p.pl".
6028 *) Rewrite the way password based encryption (PBE) is handled. It used to
6029 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6030 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6031 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6032 the 'parameter' field of the AlgorithmIdentifier is passed to the
6033 underlying key generation function so it must do its own ASN1 parsing.
6034 This has also changed the EVP_PBE_CipherInit() function which now has a
6035 'parameter' argument instead of literal salt and iteration count values
6036 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6039 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6040 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6041 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6042 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6043 value was just used as a "magic string" and not used directly its
6044 value doesn't matter.
6047 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6051 *) "linux-sparc64" configuration (ultrapenguin).
6052 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6053 "linux-sparc" configuration.
6054 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6056 *) config now generates no-xxx options for missing ciphers.
6059 *) Support the EBCDIC character set (work in progress).
6060 File ebcdic.c not yet included because it has a different license.
6061 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6063 *) Support BS2000/OSD-POSIX.
6064 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6066 *) Make callbacks for key generation use void * instead of char *.
6069 *) Make S/MIME samples compile (not yet tested).
6072 *) Additional typesafe stacks.
6075 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6079 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6081 *) New configuration variant "sco5-gcc".
6083 *) Updated some demos.
6084 [Sean O Riordain, Wade Scholine]
6086 *) Add missing BIO_free at exit of pkcs12 application.
6089 *) Fix memory leak in conf.c.
6092 *) Updates for Win32 to assembler version of MD5.
6095 *) Set #! path to perl in apps/der_chop to where we found it
6096 instead of using a fixed path.
6099 *) SHA library changes for irix64-mips4-cc.
6102 *) Improvements for VMS support.
6106 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6108 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6109 This also avoids the problems with SC4.2 and unpatched SC5.
6110 [Andy Polyakov <appro@fy.chalmers.se>]
6112 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6113 These are required because of the typesafe stack would otherwise break
6114 existing code. If old code used a structure member which used to be STACK
6115 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6116 sk_num or sk_value it would produce an error because the num, data members
6117 are not present in STACK_OF. Now it just produces a warning. sk_set
6118 replaces the old method of assigning a value to sk_value
6119 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6120 that does this will no longer work (and should use sk_set instead) but
6121 this could be regarded as a "questionable" behaviour anyway.
6124 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6125 correctly handle encrypted S/MIME data.
6128 *) Change type of various DES function arguments from des_cblock
6129 (which means, in function argument declarations, pointer to char)
6130 to des_cblock * (meaning pointer to array with 8 char elements),
6131 which allows the compiler to do more typechecking; it was like
6132 that back in SSLeay, but with lots of ugly casts.
6134 Introduce new type const_des_cblock.
6137 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6138 problems: find RecipientInfo structure that matches recipient certificate
6139 and initialise the ASN1 structures properly based on passed cipher.
6142 *) Belatedly make the BN tests actually check the results.
6145 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6146 to and from BNs: it was completely broken. New compilation option
6147 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6148 key elements as negative integers.
6151 *) Reorganize and speed up MD5.
6152 [Andy Polyakov <appro@fy.chalmers.se>]
6155 [Richard Levitte <richard@levitte.org>]
6157 *) New option -out to asn1parse to allow the parsed structure to be
6158 output to a file. This is most useful when combined with the -strparse
6159 option to examine the output of things like OCTET STRINGS.
6162 *) Make SSL library a little more fool-proof by not requiring any longer
6163 that SSL_set_{accept,connect}_state be called before
6164 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6165 in many applications because usually everything *appeared* to work as
6166 intended anyway -- now it really works as intended).
6169 *) Move openssl.cnf out of lib/.
6172 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6173 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6174 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6175 [Ralf S. Engelschall]
6177 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6178 handle PKCS#7 enveloped data properly.
6179 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6181 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6182 copying pointers. The cert_st handling is changed by this in
6183 various ways (and thus what used to be known as ctx->default_cert
6184 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6185 any longer when s->cert does not give us what we need).
6186 ssl_cert_instantiate becomes obsolete by this change.
6187 As soon as we've got the new code right (possibly it already is?),
6188 we have solved a couple of bugs of the earlier code where s->cert
6189 was used as if it could not have been shared with other SSL structures.
6191 Note that using the SSL API in certain dirty ways now will result
6192 in different behaviour than observed with earlier library versions:
6193 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6194 does not influence s as it used to.
6196 In order to clean up things more thoroughly, inside SSL_SESSION
6197 we don't use CERT any longer, but a new structure SESS_CERT
6198 that holds per-session data (if available); currently, this is
6199 the peer's certificate chain and, for clients, the server's certificate
6200 and temporary key. CERT holds only those values that can have
6201 meaningful defaults in an SSL_CTX.
6204 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6205 from the internal representation. Various PKCS#7 fixes: remove some
6206 evil casts and set the enc_dig_alg field properly based on the signing
6210 *) Allow PKCS#12 password to be set from the command line or the
6211 environment. Let 'ca' get its config file name from the environment
6212 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6216 *) Allow certificate policies extension to use an IA5STRING for the
6217 organization field. This is contrary to the PKIX definition but
6218 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6222 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6223 without disallowing inline assembler and the like for non-pedantic builds.
6226 *) Support Borland C++ builder.
6227 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6232 *) SHA-1 cleanups and performance enhancements.
6233 [Andy Polyakov <appro@fy.chalmers.se>]
6235 *) Sparc v8plus assembler for the bignum library.
6236 [Andy Polyakov <appro@fy.chalmers.se>]
6238 *) Accept any -xxx and +xxx compiler options in Configure.
6241 *) Update HPUX configuration.
6244 *) Add missing sk_<type>_unshift() function to safestack.h
6245 [Ralf S. Engelschall]
6247 *) New function SSL_CTX_use_certificate_chain_file that sets the
6248 "extra_cert"s in addition to the certificate. (This makes sense
6249 only for "PEM" format files, as chains as a whole are not
6253 *) Support verify_depth from the SSL API.
6254 x509_vfy.c had what can be considered an off-by-one-error:
6255 Its depth (which was not part of the external interface)
6256 was actually counting the number of certificates in a chain;
6257 now it really counts the depth.
6260 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6261 instead of X509err, which often resulted in confusing error
6262 messages since the error codes are not globally unique
6263 (e.g. an alleged error in ssl3_accept when a certificate
6264 didn't match the private key).
6266 *) New function SSL_CTX_set_session_id_context that allows to set a default
6267 value (so that you don't need SSL_set_session_id_context for each
6268 connection using the SSL_CTX).
6271 *) OAEP decoding bug fix.
6274 *) Support INSTALL_PREFIX for package builders, as proposed by
6278 *) New Configure options "threads" and "no-threads". For systems
6279 where the proper compiler options are known (currently Solaris
6280 and Linux), "threads" is the default.
6283 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6286 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6287 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6288 such as /usr/local/bin.
6291 *) "make linux-shared" to build shared libraries.
6292 [Niels Poppe <niels@netbox.org>]
6294 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6297 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6298 extension adding in x509 utility.
6301 *) Remove NOPROTO sections and error code comments.
6304 *) Partial rewrite of the DEF file generator to now parse the ANSI
6308 *) New Configure options --prefix=DIR and --openssldir=DIR.
6311 *) Complete rewrite of the error code script(s). It is all now handled
6312 by one script at the top level which handles error code gathering,
6313 header rewriting and C source file generation. It should be much better
6314 than the old method: it now uses a modified version of Ulf's parser to
6315 read the ANSI prototypes in all header files (thus the old K&R definitions
6316 aren't needed for error creation any more) and do a better job of
6317 translating function codes into names. The old 'ASN1 error code imbedded
6318 in a comment' is no longer necessary and it doesn't use .err files which
6319 have now been deleted. Also the error code call doesn't have to appear all
6320 on one line (which resulted in some large lines...).
6323 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6326 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6327 0 (which usually indicates a closed connection), but continue reading.
6330 *) Fix some race conditions.
6333 *) Add support for CRL distribution points extension. Add Certificate
6334 Policies and CRL distribution points documentation.
6337 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6340 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6341 8 of keying material. Merlin has also confirmed interop with this fix
6342 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6343 [Merlin Hughes <merlin@baltimore.ie>]
6345 *) Fix lots of warnings.
6346 [Richard Levitte <levitte@stacken.kth.se>]
6348 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6349 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6350 [Richard Levitte <levitte@stacken.kth.se>]
6352 *) Fix problems with sizeof(long) == 8.
6353 [Andy Polyakov <appro@fy.chalmers.se>]
6355 *) Change functions to ANSI C.
6358 *) Fix typos in error codes.
6359 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6361 *) Remove defunct assembler files from Configure.
6364 *) SPARC v8 assembler BIGNUM implementation.
6365 [Andy Polyakov <appro@fy.chalmers.se>]
6367 *) Support for Certificate Policies extension: both print and set.
6368 Various additions to support the r2i method this uses.
6371 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6372 return a const string when you are expecting an allocated buffer.
6375 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6376 types DirectoryString and DisplayText.
6379 *) Add code to allow r2i extensions to access the configuration database,
6380 add an LHASH database driver and add several ctx helper functions.
6383 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6384 fail when they extended the size of a BIGNUM.
6387 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6388 support typesafe stack.
6391 *) Fix typo in SSL_[gs]et_options().
6392 [Nils Frostberg <nils@medcom.se>]
6394 *) Delete various functions and files that belonged to the (now obsolete)
6395 old X509V3 handling code.
6398 *) New Configure option "rsaref".
6401 *) Don't auto-generate pem.h.
6404 *) Introduce type-safe ASN.1 SETs.
6407 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6408 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6410 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6411 that links with OpenSSL (well at least cause lots of warnings), but fear
6412 not: the conversion is trivial, and it eliminates loads of evil casts. A
6413 few STACKed things have been converted already. Feel free to convert more.
6414 In the fullness of time, I'll do away with the STACK type altogether.
6417 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6418 specified in <certfile> by updating the entry in the index.txt file.
6419 This way one no longer has to edit the index.txt file manually for
6420 revoking a certificate. The -revoke option does the gory details now.
6421 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6423 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6424 `-text' option at all and this way the `-noout -text' combination was
6425 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6426 [Ralf S. Engelschall]
6428 *) Make sure a corresponding plain text error message exists for the
6429 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6430 verify callback function determined that a certificate was revoked.
6431 [Ralf S. Engelschall]
6433 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6434 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6435 all available cipers including rc5, which was forgotten until now.
6436 In order to let the testing shell script know which algorithms
6437 are available, a new (up to now undocumented) command
6438 "openssl list-cipher-commands" is used.
6441 *) Bugfix: s_client occasionally would sleep in select() when
6442 it should have checked SSL_pending() first.
6445 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6446 the raw DSA values prior to ASN.1 encoding.
6449 *) Tweaks to Configure
6450 [Niels Poppe <niels@netbox.org>]
6452 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6456 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6459 *) New config option to avoid instructions that are illegal on the 80386.
6460 The default code is faster, but requires at least a 486.
6463 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6464 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6465 same as SSL2_VERSION anyway.
6468 *) New "-showcerts" option for s_client.
6471 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6472 application. Various cleanups and fixes.
6475 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6476 modify error routines to work internally. Add error codes and PBE init
6477 to library startup routines.
6480 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6481 packing functions to asn1 and evp. Changed function names and error
6482 codes along the way.
6485 *) PKCS12 integration: and so it begins... First of several patches to
6486 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6487 objects to objects.h
6490 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6491 and display support for Thawte strong extranet extension.
6494 *) Add LinuxPPC support.
6495 [Jeff Dubrule <igor@pobox.org>]
6497 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6498 bn_div_words in alpha.s.
6499 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6501 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6502 OAEP isn't supported when OpenSSL is built with RSAref.
6503 [Ulf Moeller <ulf@fitug.de>]
6505 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6506 so they no longer are missing under -DNOPROTO.
6507 [Soren S. Jorvang <soren@t.dk>]
6510 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6512 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6513 doesn't work when the session is reused. Coming soon!
6516 *) Fix a security hole, that allows sessions to be reused in the wrong
6517 context thus bypassing client cert protection! All software that uses
6518 client certs and session caches in multiple contexts NEEDS PATCHING to
6519 allow session reuse! A fuller solution is in the works.
6520 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6522 *) Some more source tree cleanups (removed obsolete files
6523 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6524 permission on "config" script to be executable) and a fix for the INSTALL
6526 [Ulf Moeller <ulf@fitug.de>]
6528 *) Remove some legacy and erroneous uses of malloc, free instead of
6530 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6532 *) Make rsa_oaep_test return non-zero on error.
6533 [Ulf Moeller <ulf@fitug.de>]
6535 *) Add support for native Solaris shared libraries. Configure
6536 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6537 if someone would make that last step automatic.
6538 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6540 *) ctx_size was not built with the right compiler during "make links". Fixed.
6543 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6544 except NULL ciphers". This means the default cipher list will no longer
6545 enable NULL ciphers. They need to be specifically enabled e.g. with
6546 the string "DEFAULT:eNULL".
6549 *) Fix to RSA private encryption routines: if p < q then it would
6550 occasionally produce an invalid result. This will only happen with
6551 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6554 *) Be less restrictive and allow also `perl util/perlpath.pl
6555 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6556 because this way one can also use an interpreter named `perl5' (which is
6557 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6558 installed as `perl').
6559 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6561 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6562 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6564 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6565 advapi32.lib to Win32 build and change the pem test comparision
6566 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6567 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6568 and crypto/des/ede_cbcm_enc.c.
6571 *) DES quad checksum was broken on big-endian architectures. Fixed.
6574 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6575 Win32 test batch file so it (might) work again. The Win32 test batch file
6576 is horrible: I feel ill....
6579 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6580 in e_os.h. Audit of header files to check ANSI and non ANSI
6581 sections: 10 functions were absent from non ANSI section and not exported
6582 from Windows DLLs. Fixed up libeay.num for new functions.
6585 *) Make `openssl version' output lines consistent.
6586 [Ralf S. Engelschall]
6588 *) Fix Win32 symbol export lists for BIO functions: Added
6589 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6590 to ms/libeay{16,32}.def.
6591 [Ralf S. Engelschall]
6593 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6594 fine under Unix and passes some trivial tests I've now added. But the
6595 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6596 added to make sure no one expects that this stuff really works in the
6597 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6598 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6600 [Ralf S. Engelschall]
6602 *) Fix the generation of two part addresses in perl.
6603 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6605 *) Add config entry for Linux on MIPS.
6606 [John Tobey <jtobey@channel1.com>]
6608 *) Make links whenever Configure is run, unless we are on Windoze.
6611 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6612 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6616 *) Add a useful kludge to allow package maintainers to specify compiler and
6617 other platforms details on the command line without having to patch the
6618 Configure script everytime: One now can use ``perl Configure
6619 <id>:<details>'', i.e. platform ids are allowed to have details appended
6620 to them (seperated by colons). This is treated as there would be a static
6621 pre-configured entry in Configure's %table under key <id> with value
6622 <details> and ``perl Configure <id>'' is called. So, when you want to
6623 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6624 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6625 now, which overrides the FreeBSD-elf entry on-the-fly.
6626 [Ralf S. Engelschall]
6628 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6631 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6632 on the `perl Configure ...' command line. This way one can compile
6633 OpenSSL libraries with Position Independent Code (PIC) which is needed
6634 for linking it into DSOs.
6635 [Ralf S. Engelschall]
6637 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6641 *) Cleaned up the LICENSE document: The official contact for any license
6642 questions now is the OpenSSL core team under openssl-core@openssl.org.
6643 And add a paragraph about the dual-license situation to make sure people
6644 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6645 to the OpenSSL toolkit.
6646 [Ralf S. Engelschall]
6648 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6649 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6650 Additonally cleaned up the `make links' target: Remove unnecessary
6651 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6652 to speed processing and no longer clutter the display with confusing
6653 stuff. Instead only the actually done links are displayed.
6654 [Ralf S. Engelschall]
6656 *) Permit null encryption ciphersuites, used for authentication only. It used
6657 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6658 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6662 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6663 signed attributes when verifying signatures (this would break them),
6664 the detached data encoding was wrong and public keys obtained using
6665 X509_get_pubkey() weren't freed.
6668 *) Add text documentation for the BUFFER functions. Also added a work around
6669 to a Win95 console bug. This was triggered by the password read stuff: the
6670 last character typed gets carried over to the next fread(). If you were
6671 generating a new cert request using 'req' for example then the last
6672 character of the passphrase would be CR which would then enter the first
6676 *) Added the new `Includes OpenSSL Cryptography Software' button as
6677 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6678 button and can be used by applications based on OpenSSL to show the
6679 relationship to the OpenSSL project.
6680 [Ralf S. Engelschall]
6682 *) Remove confusing variables in function signatures in files
6683 ssl/ssl_lib.c and ssl/ssl.h.
6684 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6686 *) Don't install bss_file.c under PREFIX/include/
6687 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6689 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6690 functions that return function pointers and has support for NT specific
6691 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6692 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6693 unsigned to signed types: this was killing the Win32 compile.
6696 *) Add new certificate file to stack functions,
6697 SSL_add_dir_cert_subjects_to_stack() and
6698 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6699 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6700 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6701 This means that Apache-SSL and similar packages don't have to mess around
6702 to add as many CAs as they want to the preferred list.
6705 *) Experiment with doxygen documentation. Currently only partially applied to
6707 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6708 openssl.doxy as the configuration file.
6711 *) Get rid of remaining C++-style comments which strict C compilers hate.
6712 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6714 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6715 compiled in by default: it has problems with large keys.
6718 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6719 DH private keys and/or callback functions which directly correspond to
6720 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6721 is needed for applications which have to configure certificates on a
6722 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6724 For the RSA certificate situation is makes no difference, but
6725 for the DSA certificate situation this fixes the "no shared cipher"
6726 problem where the OpenSSL cipher selection procedure failed because the
6727 temporary keys were not overtaken from the context and the API provided
6728 no way to reconfigure them.
6729 The new functions now let applications reconfigure the stuff and they
6730 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6731 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6732 non-public-API function ssl_cert_instantiate() is used as a helper
6733 function and also to reduce code redundancy inside ssl_rsa.c.
6734 [Ralf S. Engelschall]
6736 *) Move s_server -dcert and -dkey options out of the undocumented feature
6737 area because they are useful for the DSA situation and should be
6738 recognized by the users.
6739 [Ralf S. Engelschall]
6741 *) Fix the cipher decision scheme for export ciphers: the export bits are
6742 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6743 SSL_EXP_MASK. So, the original variable has to be used instead of the
6744 already masked variable.
6745 [Richard Levitte <levitte@stacken.kth.se>]
6747 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6748 [Richard Levitte <levitte@stacken.kth.se>]
6750 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6751 from `int' to `unsigned int' because it's a length and initialized by
6752 EVP_DigestFinal() which expects an `unsigned int *'.
6753 [Richard Levitte <levitte@stacken.kth.se>]
6755 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6756 script. Instead use the usual Shell->Perl transition trick.
6757 [Ralf S. Engelschall]
6759 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6760 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6761 -noout -modulus' as it's already the case for `openssl rsa -noout
6762 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6763 currently the public key is printed (a decision which was already done by
6764 `openssl dsa -modulus' in the past) which serves a similar purpose.
6765 Additionally the NO_RSA no longer completely removes the whole -modulus
6766 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6768 [Ralf S. Engelschall]
6770 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6771 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6772 [Arne Ansper <arne@ats.cyber.ee>]
6774 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6775 to be added. Now both 'req' and 'ca' can use new objects defined in the
6779 *) Add cool BIO that does syslog (or event log on NT).
6780 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6782 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6783 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6784 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6785 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6788 *) Add preliminary config info for new extension code.
6791 *) Make RSA_NO_PADDING really use no padding.
6792 [Ulf Moeller <ulf@fitug.de>]
6794 *) Generate errors when private/public key check is done.
6797 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6798 for some CRL extensions and new objects added.
6801 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6802 key usage extension and fuller support for authority key id.
6805 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6806 padding method for RSA, which is recommended for new applications in PKCS
6807 #1 v2.0 (RFC 2437, October 1998).
6808 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6809 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6810 against Bleichbacher's attack on RSA.
6811 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6814 *) Updates to the new SSL compression code
6815 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6817 *) Fix so that the version number in the master secret, when passed
6818 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6819 (because the server will not accept higher), that the version number
6820 is 0x03,0x01, not 0x03,0x00
6821 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6823 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6824 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6825 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6828 *) Support for RAW extensions where an arbitrary extension can be
6829 created by including its DER encoding. See apps/openssl.cnf for
6833 *) Make sure latest Perl versions don't interpret some generated C array
6834 code as Perl array code in the crypto/err/err_genc.pl script.
6835 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6837 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6838 not many people have the assembler. Various Win32 compilation fixes and
6839 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6843 *) Modify configure script 'Configure' to automatically create crypto/date.h
6844 file under Win32 and also build pem.h from pem.org. New script
6845 util/mkfiles.pl to create the MINFO file on environments that can't do a
6846 'make files': perl util/mkfiles.pl >MINFO should work.
6849 *) Major rework of DES function declarations, in the pursuit of correctness
6850 and purity. As a result, many evil casts evaporated, and some weirdness,
6851 too. You may find this causes warnings in your code. Zapping your evil
6852 casts will probably fix them. Mostly.
6855 *) Fix for a typo in asn1.h. Bug fix to object creation script
6856 obj_dat.pl. It considered a zero in an object definition to mean
6857 "end of object": none of the objects in objects.h have any zeros
6858 so it wasn't spotted.
6859 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6861 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6862 Masking (CBCM). In the absence of test vectors, the best I have been able
6863 to do is check that the decrypt undoes the encrypt, so far. Send me test
6864 vectors if you have them.
6867 *) Correct calculation of key length for export ciphers (too much space was
6868 allocated for null ciphers). This has not been tested!
6871 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6872 message is now correct (it understands "crypto" and "ssl" on its
6873 command line). There is also now an "update" option. This will update
6874 the util/ssleay.num and util/libeay.num files with any new functions.
6876 perl util/mkdef.pl crypto ssl update
6877 it will update them.
6880 *) Overhauled the Perl interface (perl/*):
6881 - ported BN stuff to OpenSSL's different BN library
6882 - made the perl/ source tree CVS-aware
6883 - renamed the package from SSLeay to OpenSSL (the files still contain
6884 their history because I've copied them in the repository)
6885 - removed obsolete files (the test scripts will be replaced
6886 by better Test::Harness variants in the future)
6887 [Ralf S. Engelschall]
6889 *) First cut for a very conservative source tree cleanup:
6890 1. merge various obsolete readme texts into doc/ssleay.txt
6891 where we collect the old documents and readme texts.
6892 2. remove the first part of files where I'm already sure that we no
6893 longer need them because of three reasons: either they are just temporary
6894 files which were left by Eric or they are preserved original files where
6895 I've verified that the diff is also available in the CVS via "cvs diff
6896 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6897 the crypto/md/ stuff).
6898 [Ralf S. Engelschall]
6900 *) More extension code. Incomplete support for subject and issuer alt
6901 name, issuer and authority key id. Change the i2v function parameters
6902 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6903 what that's for :-) Fix to ASN1 macro which messed up
6904 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6907 *) Preliminary support for ENUMERATED type. This is largely copied from the
6911 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6912 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6914 *) Make sure `make rehash' target really finds the `openssl' program.
6915 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6917 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6918 like to hear about it if this slows down other processors.
6921 *) Add CygWin32 platform information to Configure script.
6922 [Alan Batie <batie@aahz.jf.intel.com>]
6924 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6925 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6927 *) New program nseq to manipulate netscape certificate sequences
6930 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6934 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6935 but the BN code had some problems that would cause failures when
6936 doing certificate verification and some other functions.
6937 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6939 *) Add ASN1 and PEM code to support netscape certificate sequences.
6942 *) Add ASN1 and PEM code to support netscape certificate sequences.
6945 *) Add several PKIX and private extended key usage OIDs.
6948 *) Modify the 'ca' program to handle the new extension code. Modify
6949 openssl.cnf for new extension format, add comments.
6952 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6953 and add a sample to openssl.cnf so req -x509 now adds appropriate
6957 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6958 error code, add initial support to X509_print() and x509 application.
6961 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6962 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6963 stuff is currently isolated and isn't even compiled yet.
6966 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6967 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6968 Removed the versions check from X509 routines when loading extensions:
6969 this allows certain broken certificates that don't set the version
6970 properly to be processed.
6973 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6974 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6975 can still be regenerated with "make depend".
6978 *) Spelling mistake in C version of CAST-128.
6979 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6981 *) Changes to the error generation code. The perl script err-code.pl
6982 now reads in the old error codes and retains the old numbers, only
6983 adding new ones if necessary. It also only changes the .err files if new
6984 codes are added. The makefiles have been modified to only insert errors
6985 when needed (to avoid needlessly modifying header files). This is done
6986 by only inserting errors if the .err file is newer than the auto generated
6987 C file. To rebuild all the error codes from scratch (the old behaviour)
6988 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6989 or delete all the .err files.
6992 *) CAST-128 was incorrectly implemented for short keys. The C version has
6993 been fixed, but is untested. The assembler versions are also fixed, but
6994 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6995 to regenerate it if needed.
6996 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6997 Hagino <itojun@kame.net>]
6999 *) File was opened incorrectly in randfile.c.
7000 [Ulf Möller <ulf@fitug.de>]
7002 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7003 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7004 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7005 al: it's just almost always a UTCTime. Note this patch adds new error
7006 codes so do a "make errors" if there are problems.
7009 *) Correct Linux 1 recognition in config.
7010 [Ulf Möller <ulf@fitug.de>]
7012 *) Remove pointless MD5 hash when using DSA keys in ca.
7013 [Anonymous <nobody@replay.com>]
7015 *) Generate an error if given an empty string as a cert directory. Also
7016 generate an error if handed NULL (previously returned 0 to indicate an
7017 error, but didn't set one).
7018 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7020 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7023 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7024 parameters. This was causing a warning which killed off the Win32 compile.
7027 *) Remove C++ style comments from crypto/bn/bn_local.h.
7028 [Neil Costigan <neil.costigan@celocom.com>]
7030 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7031 based on a text string, looking up short and long names and finally
7032 "dot" format. The "dot" format stuff didn't work. Added new function
7033 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7034 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7035 OID is not part of the table.
7038 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7039 X509_LOOKUP_by_alias().
7042 *) Sort openssl functions by name.
7045 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7046 encryption from sample DSA keys (in case anyone is interested the password
7050 *) Make _all_ *_free functions accept a NULL pointer.
7051 [Frans Heymans <fheymans@isaserver.be>]
7053 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7055 [Anonymous <nobody@replay.com>]
7057 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7058 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7060 *) Don't blow it for numeric -newkey arguments to apps/req.
7061 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7063 *) Temp key "for export" tests were wrong in s3_srvr.c.
7064 [Anonymous <nobody@replay.com>]
7066 *) Add prototype for temp key callback functions
7067 SSL_CTX_set_tmp_{rsa,dh}_callback().
7070 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7071 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7074 *) X509_name_add_entry() freed the wrong thing after an error.
7075 [Arne Ansper <arne@ats.cyber.ee>]
7077 *) rsa_eay.c would attempt to free a NULL context.
7078 [Arne Ansper <arne@ats.cyber.ee>]
7080 *) BIO_s_socket() had a broken should_retry() on Windoze.
7081 [Arne Ansper <arne@ats.cyber.ee>]
7083 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7084 [Arne Ansper <arne@ats.cyber.ee>]
7086 *) Make sure the already existing X509_STORE->depth variable is initialized
7087 in X509_STORE_new(), but document the fact that this variable is still
7088 unused in the certificate verification process.
7089 [Ralf S. Engelschall]
7091 *) Fix the various library and apps files to free up pkeys obtained from
7092 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7095 *) Fix reference counting in X509_PUBKEY_get(). This makes
7096 demos/maurice/example2.c work, amongst others, probably.
7097 [Steve Henson and Ben Laurie]
7099 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7100 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7101 are no longer created. This way we have a single and consistent command
7102 line interface `openssl <command>', similar to `cvs <command>'.
7103 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7105 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7106 BIT STRING wrapper always have zero unused bits.
7109 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7112 *) Make the top-level INSTALL documentation easier to understand.
7115 *) Makefiles updated to exit if an error occurs in a sub-directory
7116 make (including if user presses ^C) [Paul Sutton]
7118 *) Make Montgomery context stuff explicit in RSA data structure.
7121 *) Fix build order of pem and err to allow for generated pem.h.
7124 *) Fix renumbering bug in X509_NAME_delete_entry().
7127 *) Enhanced the err-ins.pl script so it makes the error library number
7128 global and can add a library name. This is needed for external ASN1 and
7129 other error libraries.
7132 *) Fixed sk_insert which never worked properly.
7135 *) Fix ASN1 macros so they can handle indefinite length construted
7136 EXPLICIT tags. Some non standard certificates use these: they can now
7140 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7141 into a single doc/ssleay.txt bundle. This way the information is still
7142 preserved but no longer messes up this directory. Now it's new room for
7143 the new set of documenation files.
7144 [Ralf S. Engelschall]
7146 *) SETs were incorrectly DER encoded. This was a major pain, because they
7147 shared code with SEQUENCEs, which aren't coded the same. This means that
7148 almost everything to do with SETs or SEQUENCEs has either changed name or
7149 number of arguments.
7150 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7152 *) Fix test data to work with the above.
7155 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7156 was already fixed by Eric for 0.9.1 it seems.
7157 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7159 *) Autodetect FreeBSD3.
7162 *) Fix various bugs in Configure. This affects the following platforms:
7166 unixware-2.0-pentium
7170 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7171 before they are needed.
7174 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7178 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7180 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7181 changed SSLeay to OpenSSL in version strings.
7182 [Ralf S. Engelschall]
7184 *) Some fixups to the top-level documents.
7187 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7188 because the symlink to include/ was missing.
7189 [Ralf S. Engelschall]
7191 *) Incorporated the popular no-RSA/DSA-only patches
7192 which allow to compile a RSA-free SSLeay.
7193 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7195 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7196 when "ssleay" is still not found.
7197 [Ralf S. Engelschall]
7199 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7200 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7202 *) Updated the README file.
7203 [Ralf S. Engelschall]
7205 *) Added various .cvsignore files in the CVS repository subdirs
7206 to make a "cvs update" really silent.
7207 [Ralf S. Engelschall]
7209 *) Recompiled the error-definition header files and added
7210 missing symbols to the Win32 linker tables.
7211 [Ralf S. Engelschall]
7213 *) Cleaned up the top-level documents;
7214 o new files: CHANGES and LICENSE
7215 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7216 o merged COPYRIGHT into LICENSE
7217 o removed obsolete TODO file
7218 o renamed MICROSOFT to INSTALL.W32
7219 [Ralf S. Engelschall]
7221 *) Removed dummy files from the 0.9.1b source tree:
7222 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7223 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7224 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7225 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7226 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7227 [Ralf S. Engelschall]
7229 *) Added various platform portability fixes.
7232 *) The Genesis of the OpenSSL rpject:
7233 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7234 Young and Tim J. Hudson created while they were working for C2Net until
7236 [The OpenSSL Project]
7239 Changes between 0.9.0b and 0.9.1b [not released]
7241 *) Updated a few CA certificates under certs/
7244 *) Changed some BIGNUM api stuff.
7247 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7248 DGUX x86, Linux Alpha, etc.
7251 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7252 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7256 *) Add -strparse option to asn1pars program which parses nested
7258 [Dr Stephen Henson <shenson@bigfoot.com>]
7260 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7263 *) DSA fix for "ca" program.
7266 *) Added "-genkey" option to "dsaparam" program.
7269 *) Added RIPE MD160 (rmd160) message digest.
7272 *) Added -a (all) option to "ssleay version" command.
7275 *) Added PLATFORM define which is the id given to Configure.
7278 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7281 *) Extended the ASN.1 parser routines.
7284 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7287 *) Added a BN_CTX to the BN library.
7290 *) Fixed the weak key values in DES library
7293 *) Changed API in EVP library for cipher aliases.
7296 *) Added support for RC2/64bit cipher.
7299 *) Converted the lhash library to the crypto/mem.c functions.
7302 *) Added more recognized ASN.1 object ids.
7305 *) Added more RSA padding checks for SSL/TLS.
7308 *) Added BIO proxy/filter functionality.
7311 *) Added extra_certs to SSL_CTX which can be used
7312 send extra CA certificates to the client in the CA cert chain sending
7313 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7316 *) Now Fortezza is denied in the authentication phase because
7317 this is key exchange mechanism is not supported by SSLeay at all.
7320 *) Additional PKCS1 checks.
7323 *) Support the string "TLSv1" for all TLS v1 ciphers.
7326 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7327 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7330 *) Fixed a few memory leaks.
7333 *) Fixed various code and comment typos.
7336 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7337 bytes sent in the client random.
7338 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob