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 *) Prompt for pass phrases when appropriate for PKCS12 input format.
756 *) Add lots of checks for memory allocation failure, error codes to indicate
757 failure and freeing up memory if a failure occurs.
758 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
760 *) Add new -passin argument to dgst.
763 *) Perform some character comparisons of different types in X509_NAME_cmp:
764 this is needed for some certificates that reencode DNs into UTF8Strings
765 (in violation of RFC3280) and can't or wont issue name rollover
769 *) Make an explicit check during certificate validation to see that
770 the CA setting in each certificate on the chain is correct. As a
771 side effect always do the following basic checks on extensions,
772 not just when there's an associated purpose to the check:
774 - if there is an unhandled critical extension (unless the user
775 has chosen to ignore this fault)
776 - if the path length has been exceeded (if one is set at all)
777 - that certain extensions fit the associated purpose (if one has
781 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
783 *) Avoid a race condition when CRLs are checked in a multi threaded
784 environment. This would happen due to the reordering of the revoked
785 entries during signature checking and serial number lookup. Now the
786 encoding is cached and the serial number sort performed under a lock.
787 Add new STACK function sk_is_sorted().
790 *) Add Delta CRL to the extension code.
793 *) Various fixes to s3_pkt.c so alerts are sent properly.
794 [David Holmes <d.holmes@f5.com>]
796 *) Reduce the chances of duplicate issuer name and serial numbers (in
797 violation of RFC3280) using the OpenSSL certificate creation utilities.
798 This is done by creating a random 64 bit value for the initial serial
799 number when a serial number file is created or when a self signed
800 certificate is created using 'openssl req -x509'. The initial serial
801 number file is created using 'openssl x509 -next_serial' in CA.pl
802 rather than being initialized to 1.
805 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
807 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
808 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
809 [Joe Orton, Steve Henson]
811 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
813 [Joe Orton, Steve Henson]
815 *) Make it possible to have multiple active certificates with the same
816 subject in the CA index file. This is done only if the keyword
817 'unique_subject' is set to 'no' in the main CA section (default
818 if 'CA_default') of the configuration file. The value is saved
819 with the database itself in a separate index attribute file,
820 named like the index file with '.attr' appended to the name.
823 *) X509 verify fixes. Disable broken certificate workarounds when
824 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
825 keyUsage extension present. Don't accept CRLs with unhandled critical
826 extensions: since verify currently doesn't process CRL extensions this
827 rejects a CRL with *any* critical extensions. Add new verify error codes
831 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
832 A clarification of RFC2560 will require the use of OCTET STRINGs and
833 some implementations cannot handle the current raw format. Since OpenSSL
834 copies and compares OCSP nonces as opaque blobs without any attempt at
835 parsing them this should not create any compatibility issues.
838 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
839 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
840 this HMAC (and other) operations are several times slower than OpenSSL
844 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
845 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
847 *) Use the correct content when signing type "other".
850 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
852 *) Fix various bugs revealed by running the NISCC test suite:
854 Stop out of bounds reads in the ASN1 code when presented with
855 invalid tags (CAN-2003-0543 and CAN-2003-0544).
857 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
859 If verify callback ignores invalid public key errors don't try to check
860 certificate signature with the NULL public key.
864 *) New -ignore_err option in ocsp application to stop the server
865 exiting on the first error in a request.
868 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
869 if the server requested one: as stated in TLS 1.0 and SSL 3.0
873 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
874 extra data after the compression methods not only for TLS 1.0
875 but also for SSL 3.0 (as required by the specification).
876 [Bodo Moeller; problem pointed out by Matthias Loepfe]
878 *) Change X509_certificate_type() to mark the key as exported/exportable
879 when it's 512 *bits* long, not 512 bytes.
882 *) Change AES_cbc_encrypt() so it outputs exact multiple of
883 blocks during encryption.
886 *) Various fixes to base64 BIO and non blocking I/O. On write
887 flushes were not handled properly if the BIO retried. On read
888 data was not being buffered properly and had various logic bugs.
889 This also affects blocking I/O when the data being decoded is a
893 *) Various S/MIME bugfixes and compatibility changes:
894 output correct application/pkcs7 MIME type if
895 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
896 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
897 of files as .eml work). Correctly handle very long lines in MIME
901 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
903 *) Countermeasure against the Klima-Pokorny-Rosa extension of
904 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
905 a protocol version number mismatch like a decryption error
906 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
909 *) Turn on RSA blinding by default in the default implementation
910 to avoid a timing attack. Applications that don't want it can call
911 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
912 They would be ill-advised to do so in most cases.
913 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
915 *) Change RSA blinding code so that it works when the PRNG is not
916 seeded (in this case, the secret RSA exponent is abused as
917 an unpredictable seed -- if it is not unpredictable, there
918 is no point in blinding anyway). Make RSA blinding thread-safe
919 by remembering the creator's thread ID in rsa->blinding and
920 having all other threads use local one-time blinding factors
921 (this requires more computation than sharing rsa->blinding, but
922 avoids excessive locking; and if an RSA object is not shared
923 between threads, blinding will still be very fast).
926 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
927 ENGINE as defaults for all supported algorithms irrespective of
928 the 'flags' parameter. 'flags' is now honoured, so applications
929 should make sure they are passing it correctly.
932 *) Target "mingw" now allows native Windows code to be generated in
933 the Cygwin environment as well as with the MinGW compiler.
936 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
938 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
939 via timing by performing a MAC computation even if incorrrect
940 block cipher padding has been found. This is a countermeasure
941 against active attacks where the attacker has to distinguish
942 between bad padding and a MAC verification error. (CAN-2003-0078)
944 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
945 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
946 Martin Vuagnoux (EPFL, Ilion)]
948 *) Make the no-err option work as intended. The intention with no-err
949 is not to have the whole error stack handling routines removed from
950 libcrypto, it's only intended to remove all the function name and
951 reason texts, thereby removing some of the footprint that may not
952 be interesting if those errors aren't displayed anyway.
954 NOTE: it's still possible for any application or module to have it's
955 own set of error texts inserted. The routines are there, just not
956 used by default when no-err is given.
959 *) Add support for FreeBSD on IA64.
960 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
962 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
963 Kerberos function mit_des_cbc_cksum(). Before this change,
964 the value returned by DES_cbc_cksum() was like the one from
965 mit_des_cbc_cksum(), except the bytes were swapped.
966 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
968 *) Allow an application to disable the automatic SSL chain building.
969 Before this a rather primitive chain build was always performed in
970 ssl3_output_cert_chain(): an application had no way to send the
971 correct chain if the automatic operation produced an incorrect result.
973 Now the chain builder is disabled if either:
975 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
977 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
979 The reasoning behind this is that an application would not want the
980 auto chain building to take place if extra chain certificates are
981 present and it might also want a means of sending no additional
982 certificates (for example the chain has two certificates and the
986 *) Add the possibility to build without the ENGINE framework.
987 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
989 *) Under Win32 gmtime() can return NULL: check return value in
990 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
993 *) DSA routines: under certain error conditions uninitialized BN objects
994 could be freed. Solution: make sure initialization is performed early
995 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
996 Nils Larsch <nla@trustcenter.de> via PR#459)
999 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1000 checked on reconnect on the client side, therefore session resumption
1001 could still fail with a "ssl session id is different" error. This
1002 behaviour is masked when SSL_OP_ALL is used due to
1003 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1004 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1005 followup to PR #377.
1008 *) IA-32 assembler support enhancements: unified ELF targets, support
1009 for SCO/Caldera platforms, fix for Cygwin shared build.
1012 *) Add support for FreeBSD on sparc64. As a consequence, support for
1013 FreeBSD on non-x86 processors is separate from x86 processors on
1014 the config script, much like the NetBSD support.
1015 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1017 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1019 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1022 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1023 code (06) was taken as the first octet of the session ID and the last
1024 octet was ignored consequently. As a result SSLv2 client side session
1025 caching could not have worked due to the session ID mismatch between
1027 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1031 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1032 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1036 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1037 seems that in spite of existing for more than a year, many application
1038 author have done nothing to provide the necessary callbacks, which
1039 means that this particular engine will not work properly anywhere.
1040 This is a very unfortunate situation which forces us, in the name
1041 of usability, to give the hw_ncipher.c a static lock, which is part
1043 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1044 appear in 0.9.8 or later. We EXPECT application authors to have
1045 dealt properly with this when 0.9.8 is released (unless we actually
1046 make such changes in the libcrypto locking code that changes will
1047 have to be made anyway).
1050 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1051 octets have been read, EOF or an error occurs. Without this change
1052 some truncated ASN1 structures will not produce an error.
1055 *) Disable Heimdal support, since it hasn't been fully implemented.
1056 Still give the possibility to force the use of Heimdal, but with
1057 warnings and a request that patches get sent to openssl-dev.
1060 *) Add the VC-CE target, introduce the WINCE sysname, and add
1061 INSTALL.WCE and appropriate conditionals to make it build.
1062 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1064 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1065 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1066 edit numbers of the version.
1067 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1069 *) Introduce safe string copy and catenation functions
1070 (BUF_strlcpy() and BUF_strlcat()).
1071 [Ben Laurie (CHATS) and Richard Levitte]
1073 *) Avoid using fixed-size buffers for one-line DNs.
1074 [Ben Laurie (CHATS)]
1076 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1077 resizing buffers containing secrets, and use where appropriate.
1078 [Ben Laurie (CHATS)]
1080 *) Avoid using fixed size buffers for configuration file location.
1081 [Ben Laurie (CHATS)]
1083 *) Avoid filename truncation for various CA files.
1084 [Ben Laurie (CHATS)]
1086 *) Use sizeof in preference to magic numbers.
1087 [Ben Laurie (CHATS)]
1089 *) Avoid filename truncation in cert requests.
1090 [Ben Laurie (CHATS)]
1092 *) Add assertions to check for (supposedly impossible) buffer
1094 [Ben Laurie (CHATS)]
1096 *) Don't cache truncated DNS entries in the local cache (this could
1097 potentially lead to a spoofing attack).
1098 [Ben Laurie (CHATS)]
1100 *) Fix various buffers to be large enough for hex/decimal
1101 representations in a platform independent manner.
1102 [Ben Laurie (CHATS)]
1104 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1105 resizing buffers containing secrets, and use where appropriate.
1106 [Ben Laurie (CHATS)]
1108 *) Add BIO_indent() to avoid much slightly worrying code to do
1110 [Ben Laurie (CHATS)]
1112 *) Convert sprintf()/BIO_puts() to BIO_printf().
1113 [Ben Laurie (CHATS)]
1115 *) buffer_gets() could terminate with the buffer only half
1117 [Ben Laurie (CHATS)]
1119 *) Add assertions to prevent user-supplied crypto functions from
1120 overflowing internal buffers by having large block sizes, etc.
1121 [Ben Laurie (CHATS)]
1123 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1125 [Ben Laurie (CHATS)]
1127 *) Eliminate unused copy of key in RC4.
1128 [Ben Laurie (CHATS)]
1130 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1131 [Ben Laurie (CHATS)]
1133 *) Fix off-by-one error in EGD path.
1134 [Ben Laurie (CHATS)]
1136 *) If RANDFILE path is too long, ignore instead of truncating.
1137 [Ben Laurie (CHATS)]
1139 *) Eliminate unused and incorrectly sized X.509 structure
1141 [Ben Laurie (CHATS)]
1143 *) Eliminate unused and dangerous function knumber().
1144 [Ben Laurie (CHATS)]
1146 *) Eliminate unused and dangerous structure, KSSL_ERR.
1147 [Ben Laurie (CHATS)]
1149 *) Protect against overlong session ID context length in an encoded
1150 session object. Since these are local, this does not appear to be
1152 [Ben Laurie (CHATS)]
1154 *) Change from security patch (see 0.9.6e below) that did not affect
1155 the 0.9.6 release series:
1157 Remote buffer overflow in SSL3 protocol - an attacker could
1158 supply an oversized master key in Kerberos-enabled versions.
1160 [Ben Laurie (CHATS)]
1162 *) Change the SSL kerb5 codes to match RFC 2712.
1165 *) Make -nameopt work fully for req and add -reqopt switch.
1166 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1168 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1169 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1171 *) Make sure tests can be performed even if the corresponding algorithms
1172 have been removed entirely. This was also the last step to make
1173 OpenSSL compilable with DJGPP under all reasonable conditions.
1174 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1176 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1177 to allow version independent disabling of normally unselected ciphers,
1178 which may be activated as a side-effect of selecting a single cipher.
1180 (E.g., cipher list string "RSA" enables ciphersuites that are left
1181 out of "ALL" because they do not provide symmetric encryption.
1182 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1183 [Lutz Jaenicke, Bodo Moeller]
1185 *) Add appropriate support for separate platform-dependent build
1186 directories. The recommended way to make a platform-dependent
1187 build directory is the following (tested on Linux), maybe with
1190 # Place yourself outside of the OpenSSL source tree. In
1191 # this example, the environment variable OPENSSL_SOURCE
1192 # is assumed to contain the absolute OpenSSL source directory.
1193 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1194 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1195 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1196 mkdir -p `dirname $F`
1197 ln -s $OPENSSL_SOURCE/$F $F
1200 To be absolutely sure not to disturb the source tree, a "make clean"
1201 is a good thing. If it isn't successfull, don't worry about it,
1202 it probably means the source directory is very clean.
1205 *) Make sure any ENGINE control commands make local copies of string
1206 pointers passed to them whenever necessary. Otherwise it is possible
1207 the caller may have overwritten (or deallocated) the original string
1208 data when a later ENGINE operation tries to use the stored values.
1209 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1211 *) Improve diagnostics in file reading and command-line digests.
1212 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1214 *) Add AES modes CFB and OFB to the object database. Correct an
1215 error in AES-CFB decryption.
1218 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1219 allows existing EVP_CIPHER_CTX structures to be reused after
1220 calling EVP_*Final(). This behaviour is used by encryption
1221 BIOs and some applications. This has the side effect that
1222 applications must explicitly clean up cipher contexts with
1223 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1226 *) Check the values of dna and dnb in bn_mul_recursive before calling
1227 bn_mul_comba (a non zero value means the a or b arrays do not contain
1228 n2 elements) and fallback to bn_mul_normal if either is not zero.
1231 *) Fix escaping of non-ASCII characters when using the -subj option
1232 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1235 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1236 form for "surname", serialNumber has no short form.
1237 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1238 therefore remove "mail" short name for "internet 7".
1239 The OID for unique identifiers in X509 certificates is
1240 x500UniqueIdentifier, not uniqueIdentifier.
1241 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1244 *) Add an "init" command to the ENGINE config module and auto initialize
1245 ENGINEs. Without any "init" command the ENGINE will be initialized
1246 after all ctrl commands have been executed on it. If init=1 the
1247 ENGINE is initailized at that point (ctrls before that point are run
1248 on the uninitialized ENGINE and after on the initialized one). If
1249 init=0 then the ENGINE will not be iniatialized at all.
1252 *) Fix the 'app_verify_callback' interface so that the user-defined
1253 argument is actually passed to the callback: In the
1254 SSL_CTX_set_cert_verify_callback() prototype, the callback
1255 declaration has been changed from
1258 int (*cb)(X509_STORE_CTX *,void *);
1259 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1260 i=s->ctx->app_verify_callback(&ctx)
1261 has been changed into
1262 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1264 To update applications using SSL_CTX_set_cert_verify_callback(),
1265 a dummy argument can be added to their callback functions.
1266 [D. K. Smetters <smetters@parc.xerox.com>]
1268 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1269 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1271 *) Add and OPENSSL_LOAD_CONF define which will cause
1272 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1273 This allows older applications to transparently support certain
1274 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1275 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1276 load the config file and OPENSSL_add_all_algorithms_conf() which will
1277 always load it have also been added.
1280 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1281 Adjust NIDs and EVP layer.
1282 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1284 *) Config modules support in openssl utility.
1286 Most commands now load modules from the config file,
1287 though in a few (such as version) this isn't done
1288 because it couldn't be used for anything.
1290 In the case of ca and req the config file used is
1291 the same as the utility itself: that is the -config
1292 command line option can be used to specify an
1296 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1297 use "openssl_conf" if filename is NULL use default openssl config file.
1300 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1301 config section name. Add a new flag to tolerate a missing config file
1302 and move code to CONF_modules_load_file().
1305 *) Support for crypto accelerator cards from Accelerated Encryption
1306 Processing, www.aep.ie. (Use engine 'aep')
1307 The support was copied from 0.9.6c [engine] and adapted/corrected
1308 to work with the new engine framework.
1309 [AEP Inc. and Richard Levitte]
1311 *) Support for SureWare crypto accelerator cards from Baltimore
1312 Technologies. (Use engine 'sureware')
1313 The support was copied from 0.9.6c [engine] and adapted
1314 to work with the new engine framework.
1317 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1318 make the newer ENGINE framework commands for the CHIL engine work.
1319 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1321 *) Make it possible to produce shared libraries on ReliantUNIX.
1322 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1324 *) Add the configuration target debug-linux-ppro.
1325 Make 'openssl rsa' use the general key loading routines
1326 implemented in apps.c, and make those routines able to
1327 handle the key format FORMAT_NETSCAPE and the variant
1329 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1331 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1332 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1334 *) Add -keyform to rsautl, and document -engine.
1335 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1337 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1338 BIO_R_NO_SUCH_FILE error code rather than the generic
1339 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1342 *) Add new functions
1344 ERR_peek_last_error_line
1345 ERR_peek_last_error_line_data.
1346 These are similar to
1349 ERR_peek_error_line_data,
1350 but report on the latest error recorded rather than the first one
1351 still in the error queue.
1352 [Ben Laurie, Bodo Moeller]
1354 *) default_algorithms option in ENGINE config module. This allows things
1356 default_algorithms = ALL
1357 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1360 *) Prelminary ENGINE config module.
1363 *) New experimental application configuration code.
1366 *) Change the AES code to follow the same name structure as all other
1367 symmetric ciphers, and behave the same way. Move everything to
1368 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1369 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1371 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1372 [Ben Laurie and Theo de Raadt]
1374 *) Add option to output public keys in req command.
1375 [Massimiliano Pala madwolf@openca.org]
1377 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1378 (up to about 10% better than before for P-192 and P-224).
1381 *) New functions/macros
1383 SSL_CTX_set_msg_callback(ctx, cb)
1384 SSL_CTX_set_msg_callback_arg(ctx, arg)
1385 SSL_set_msg_callback(ssl, cb)
1386 SSL_set_msg_callback_arg(ssl, arg)
1388 to request calling a callback function
1390 void cb(int write_p, int version, int content_type,
1391 const void *buf, size_t len, SSL *ssl, void *arg)
1393 whenever a protocol message has been completely received
1394 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1395 protocol version according to which the SSL library interprets
1396 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1397 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1398 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1399 specification (change_cipher_spec(20), alert(21), handshake(22)).
1400 'buf' and 'len' point to the actual message, 'ssl' to the
1401 SSL object, and 'arg' is the application-defined value set by
1402 SSL[_CTX]_set_msg_callback_arg().
1404 'openssl s_client' and 'openssl s_server' have new '-msg' options
1405 to enable a callback that displays all protocol messages.
1408 *) Change the shared library support so shared libraries are built as
1409 soon as the corresponding static library is finished, and thereby get
1410 openssl and the test programs linked against the shared library.
1411 This still only happens when the keyword "shard" has been given to
1412 the configuration scripts.
1414 NOTE: shared library support is still an experimental thing, and
1415 backward binary compatibility is still not guaranteed.
1416 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1418 *) Add support for Subject Information Access extension.
1419 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1421 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1422 additional bytes when new memory had to be allocated, not just
1423 when reusing an existing buffer.
1426 *) New command line and configuration option 'utf8' for the req command.
1427 This allows field values to be specified as UTF8 strings.
1430 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1431 runs for the former and machine-readable output for the latter.
1434 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1435 of the e-mail address in the DN (i.e., it will go into a certificate
1436 extension only). The new configuration file option 'email_in_dn = no'
1437 has the same effect.
1438 [Massimiliano Pala madwolf@openca.org]
1440 *) Change all functions with names starting with des_ to be starting
1441 with DES_ instead. Add wrappers that are compatible with libdes,
1442 but are named _ossl_old_des_*. Finally, add macros that map the
1443 des_* symbols to the corresponding _ossl_old_des_* if libdes
1444 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1445 desired, the des_* symbols will be mapped to DES_*, with one
1448 Since we provide two compatibility mappings, the user needs to
1449 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1450 compatibility is desired. The default (i.e., when that macro
1451 isn't defined) is OpenSSL 0.9.6c compatibility.
1453 There are also macros that enable and disable the support of old
1454 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1455 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1456 are defined, the default will apply: to support the old des routines.
1458 In either case, one must include openssl/des.h to get the correct
1459 definitions. Do not try to just include openssl/des_old.h, that
1462 NOTE: This is a major break of an old API into a new one. Software
1463 authors are encouraged to switch to the DES_ style functions. Some
1464 time in the future, des_old.h and the libdes compatibility functions
1465 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1466 default), and then completely removed.
1469 *) Test for certificates which contain unsupported critical extensions.
1470 If such a certificate is found during a verify operation it is
1471 rejected by default: this behaviour can be overridden by either
1472 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1473 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1474 X509_supported_extension() has also been added which returns 1 if a
1475 particular extension is supported.
1478 *) Modify the behaviour of EVP cipher functions in similar way to digests
1479 to retain compatibility with existing code.
1482 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1483 compatibility with existing code. In particular the 'ctx' parameter does
1484 not have to be to be initialized before the call to EVP_DigestInit() and
1485 it is tidied up after a call to EVP_DigestFinal(). New function
1486 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1487 EVP_MD_CTX_copy() changed to not require the destination to be
1488 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1489 requires the destination to be valid.
1491 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1492 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1495 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1496 so that complete 'Handshake' protocol structures are kept in memory
1497 instead of overwriting 'msg_type' and 'length' with 'body' data.
1500 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1501 [Massimo Santin via Richard Levitte]
1503 *) Major restructuring to the underlying ENGINE code. This includes
1504 reduction of linker bloat, separation of pure "ENGINE" manipulation
1505 (initialisation, etc) from functionality dealing with implementations
1506 of specific crypto iterfaces. This change also introduces integrated
1507 support for symmetric ciphers and digest implementations - so ENGINEs
1508 can now accelerate these by providing EVP_CIPHER and EVP_MD
1509 implementations of their own. This is detailed in crypto/engine/README
1510 as it couldn't be adequately described here. However, there are a few
1511 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1512 were changed in the original introduction of ENGINE code have now
1513 reverted back - the hooking from this code to ENGINE is now a good
1514 deal more passive and at run-time, operations deal directly with
1515 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1516 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1517 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1518 they were not being used by the framework as there is no concept of a
1519 BIGNUM_METHOD and they could not be generalised to the new
1520 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1521 ENGINE_cpy() has been removed as it cannot be consistently defined in
1525 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1528 *) Change mkdef.pl to sort symbols that get the same entry number,
1529 and make sure the automatically generated functions ERR_load_*
1530 become part of libeay.num as well.
1533 *) New function SSL_renegotiate_pending(). This returns true once
1534 renegotiation has been requested (either SSL_renegotiate() call
1535 or HelloRequest/ClientHello receveived from the peer) and becomes
1536 false once a handshake has been completed.
1537 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1538 sends a HelloRequest, but does not ensure that a handshake takes
1539 place. SSL_renegotiate_pending() is useful for checking if the
1540 client has followed the request.)
1543 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1544 By default, clients may request session resumption even during
1545 renegotiation (if session ID contexts permit); with this option,
1546 session resumption is possible only in the first handshake.
1548 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1549 more bits available for options that should not be part of
1550 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1553 *) Add some demos for certificate and certificate request creation.
1556 *) Make maximum certificate chain size accepted from the peer application
1557 settable (SSL*_get/set_max_cert_list()), as proposed by
1558 "Douglas E. Engert" <deengert@anl.gov>.
1561 *) Add support for shared libraries for Unixware-7
1562 (Boyd Lynn Gerber <gerberb@zenez.com>).
1565 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1566 be done prior to destruction. Use this to unload error strings from
1567 ENGINEs that load their own error strings. NB: This adds two new API
1568 functions to "get" and "set" this destroy handler in an ENGINE.
1571 *) Alter all existing ENGINE implementations (except "openssl" and
1572 "openbsd") to dynamically instantiate their own error strings. This
1573 makes them more flexible to be built both as statically-linked ENGINEs
1574 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1575 Also, add stub code to each that makes building them as self-contained
1576 shared-libraries easier (see README.ENGINE).
1579 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1580 implementations into applications that are completely implemented in
1581 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1582 commands that can be used to configure what shared-library to load and
1583 to control aspects of the way it is handled. Also, made an update to
1584 the README.ENGINE file that brings its information up-to-date and
1585 provides some information and instructions on the "dynamic" ENGINE
1586 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1589 *) Make it possible to unload ranges of ERR strings with a new
1590 "ERR_unload_strings" function.
1593 *) Add a copy() function to EVP_MD.
1596 *) Make EVP_MD routines take a context pointer instead of just the
1597 md_data void pointer.
1600 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1601 that the digest can only process a single chunk of data
1602 (typically because it is provided by a piece of
1603 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1604 is only going to provide a single chunk of data, and hence the
1605 framework needn't accumulate the data for oneshot drivers.
1608 *) As with "ERR", make it possible to replace the underlying "ex_data"
1609 functions. This change also alters the storage and management of global
1610 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1611 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1612 index counters. The API functions that use this state have been changed
1613 to take a "class_index" rather than pointers to the class's local STACK
1614 and counter, and there is now an API function to dynamically create new
1615 classes. This centralisation allows us to (a) plug a lot of the
1616 thread-safety problems that existed, and (b) makes it possible to clean
1617 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1618 such data would previously have always leaked in application code and
1619 workarounds were in place to make the memory debugging turn a blind eye
1620 to it. Application code that doesn't use this new function will still
1621 leak as before, but their memory debugging output will announce it now
1622 rather than letting it slide.
1624 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1625 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1626 has a return value to indicate success or failure.
1629 *) Make it possible to replace the underlying "ERR" functions such that the
1630 global state (2 LHASH tables and 2 locks) is only used by the "default"
1631 implementation. This change also adds two functions to "get" and "set"
1632 the implementation prior to it being automatically set the first time
1633 any other ERR function takes place. Ie. an application can call "get",
1634 pass the return value to a module it has just loaded, and that module
1635 can call its own "set" function using that value. This means the
1636 module's "ERR" operations will use (and modify) the error state in the
1637 application and not in its own statically linked copy of OpenSSL code.
1640 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1641 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1642 the operation, and provides a more encapsulated way for external code
1643 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1644 to use these functions rather than manually incrementing the counts.
1646 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1649 *) Add EVP test program.
1652 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1655 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1656 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1657 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1658 These allow a CRL to be built without having to access X509_CRL fields
1659 directly. Modify 'ca' application to use new functions.
1662 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1663 bug workarounds. Rollback attack detection is a security feature.
1664 The problem will only arise on OpenSSL servers when TLSv1 is not
1665 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1666 Software authors not wanting to support TLSv1 will have special reasons
1667 for their choice and can explicitly enable this option.
1668 [Bodo Moeller, Lutz Jaenicke]
1670 *) Rationalise EVP so it can be extended: don't include a union of
1671 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1672 (similar to those existing for EVP_CIPHER_CTX).
1677 EVP_MD_CTX_init(&md); /* new function call */
1678 EVP_DigestInit(&md, EVP_sha1());
1679 EVP_DigestUpdate(&md, in, len);
1680 EVP_DigestFinal(&md, out, NULL);
1681 EVP_MD_CTX_cleanup(&md); /* new function call */
1685 *) Make DES key schedule conform to the usual scheme, as well as
1686 correcting its structure. This means that calls to DES functions
1687 now have to pass a pointer to a des_key_schedule instead of a
1688 plain des_key_schedule (which was actually always a pointer
1691 des_key_schedule ks;
1693 des_set_key_checked(..., &ks);
1694 des_ncbc_encrypt(..., &ks, ...);
1696 (Note that a later change renames 'des_...' into 'DES_...'.)
1699 *) Initial reduction of linker bloat: the use of some functions, such as
1700 PEM causes large amounts of unused functions to be linked in due to
1701 poor organisation. For example pem_all.c contains every PEM function
1702 which has a knock on effect of linking in large amounts of (unused)
1703 ASN1 code. Grouping together similar functions and splitting unrelated
1704 functions prevents this.
1707 *) Cleanup of EVP macros.
1710 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1711 correct _ecb suffix.
1714 *) Add initial OCSP responder support to ocsp application. The
1715 revocation information is handled using the text based index
1716 use by the ca application. The responder can either handle
1717 requests generated internally, supplied in files (for example
1718 via a CGI script) or using an internal minimal server.
1721 *) Add configuration choices to get zlib compression for TLS.
1724 *) Changes to Kerberos SSL for RFC 2712 compliance:
1725 1. Implemented real KerberosWrapper, instead of just using
1726 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1727 2. Implemented optional authenticator field of KerberosWrapper.
1729 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1730 and authenticator structs; see crypto/krb5/.
1732 Generalized Kerberos calls to support multiple Kerberos libraries.
1733 [Vern Staats <staatsvr@asc.hpc.mil>,
1734 Jeffrey Altman <jaltman@columbia.edu>
1735 via Richard Levitte]
1737 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1738 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1739 values for each of the key sizes rather than having just
1740 parameters (and 'speed' generating keys each time).
1743 *) Speed up EVP routines.
1746 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1747 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1748 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1749 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1751 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1752 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1753 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1756 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1758 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1761 *) Added the OS2-EMX target.
1762 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1764 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1765 to support NCONF routines in extension code. New function CONF_set_nconf()
1766 to allow functions which take an NCONF to also handle the old LHASH
1767 structure: this means that the old CONF compatible routines can be
1768 retained (in particular wrt extensions) without having to duplicate the
1769 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1772 *) Enhance the general user interface with mechanisms for inner control
1773 and with possibilities to have yes/no kind of prompts.
1776 *) Change all calls to low level digest routines in the library and
1777 applications to use EVP. Add missing calls to HMAC_cleanup() and
1778 don't assume HMAC_CTX can be copied using memcpy().
1779 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1781 *) Add the possibility to control engines through control names but with
1782 arbitrary arguments instead of just a string.
1783 Change the key loaders to take a UI_METHOD instead of a callback
1784 function pointer. NOTE: this breaks binary compatibility with earlier
1785 versions of OpenSSL [engine].
1786 Adapt the nCipher code for these new conditions and add a card insertion
1790 *) Enhance the general user interface with mechanisms to better support
1791 dialog box interfaces, application-defined prompts, the possibility
1792 to use defaults (for example default passwords from somewhere else)
1793 and interrupts/cancellations.
1796 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1797 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1800 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1801 tidy up some unnecessarily weird code in 'sk_new()').
1802 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1804 *) Change the key loading routines for ENGINEs to use the same kind
1805 callback (pem_password_cb) as all other routines that need this
1809 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1810 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1811 than this minimum value is recommended.
1814 *) New random seeder for OpenVMS, using the system process statistics
1815 that are easily reachable.
1818 *) Windows apparently can't transparently handle global
1819 variables defined in DLLs. Initialisations such as:
1821 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1823 wont compile. This is used by the any applications that need to
1824 declare their own ASN1 modules. This was fixed by adding the option
1825 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1826 needed for static libraries under Win32.
1829 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1830 setting of purpose and trust fields. New X509_STORE trust and
1831 purpose functions and tidy up setting in other SSL functions.
1834 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1835 structure. These are inherited by X509_STORE_CTX when it is
1836 initialised. This allows various defaults to be set in the
1837 X509_STORE structure (such as flags for CRL checking and custom
1838 purpose or trust settings) for functions which only use X509_STORE_CTX
1839 internally such as S/MIME.
1841 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1842 trust settings if they are not set in X509_STORE. This allows X509_STORE
1843 purposes and trust (in S/MIME for example) to override any set by default.
1845 Add command line options for CRL checking to smime, s_client and s_server
1849 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1850 are set then the CRL is looked up in the X509_STORE structure and
1851 its validity and signature checked, then if the certificate is found
1852 in the CRL the verify fails with a revoked error.
1854 Various new CRL related callbacks added to X509_STORE_CTX structure.
1856 Command line options added to 'verify' application to support this.
1858 This needs some additional work, such as being able to handle multiple
1859 CRLs with different times, extension based lookup (rather than just
1860 by subject name) and ultimately more complete V2 CRL extension
1864 *) Add a general user interface API (crypto/ui/). This is designed
1865 to replace things like des_read_password and friends (backward
1866 compatibility functions using this new API are provided).
1867 The purpose is to remove prompting functions from the DES code
1868 section as well as provide for prompting through dialog boxes in
1869 a window system and the like.
1872 *) Add "ex_data" support to ENGINE so implementations can add state at a
1873 per-structure level rather than having to store it globally.
1876 *) Make it possible for ENGINE structures to be copied when retrieved by
1877 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1878 This causes the "original" ENGINE structure to act like a template,
1879 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1880 operational state can be localised to each ENGINE structure, despite the
1881 fact they all share the same "methods". New ENGINE structures returned in
1882 this case have no functional references and the return value is the single
1883 structural reference. This matches the single structural reference returned
1884 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1888 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1889 needs to match any other type at all we need to manually clear the
1893 *) Changes to the "openssl engine" utility to include;
1894 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1895 about an ENGINE's available control commands.
1896 - executing control commands from command line arguments using the
1897 '-pre' and '-post' switches. '-post' is only used if '-t' is
1898 specified and the ENGINE is successfully initialised. The syntax for
1899 the individual commands are colon-separated, for example;
1900 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1903 *) New dynamic control command support for ENGINEs. ENGINEs can now
1904 declare their own commands (numbers), names (strings), descriptions,
1905 and input types for run-time discovery by calling applications. A
1906 subset of these commands are implicitly classed as "executable"
1907 depending on their input type, and only these can be invoked through
1908 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1909 can be based on user input, config files, etc). The distinction is
1910 that "executable" commands cannot return anything other than a boolean
1911 result and can only support numeric or string input, whereas some
1912 discoverable commands may only be for direct use through
1913 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1914 pointers, or other custom uses. The "executable" commands are to
1915 support parameterisations of ENGINE behaviour that can be
1916 unambiguously defined by ENGINEs and used consistently across any
1917 OpenSSL-based application. Commands have been added to all the
1918 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1919 control over shared-library paths without source code alterations.
1922 *) Changed all ENGINE implementations to dynamically allocate their
1923 ENGINEs rather than declaring them statically. Apart from this being
1924 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1925 this also allows the implementations to compile without using the
1926 internal engine_int.h header.
1929 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1930 'const' value. Any code that should be able to modify a RAND_METHOD
1931 should already have non-const pointers to it (ie. they should only
1932 modify their own ones).
1935 *) Made a variety of little tweaks to the ENGINE code.
1936 - "atalla" and "ubsec" string definitions were moved from header files
1937 to C code. "nuron" string definitions were placed in variables
1938 rather than hard-coded - allowing parameterisation of these values
1939 later on via ctrl() commands.
1940 - Removed unused "#if 0"'d code.
1941 - Fixed engine list iteration code so it uses ENGINE_free() to release
1942 structural references.
1943 - Constified the RAND_METHOD element of ENGINE structures.
1944 - Constified various get/set functions as appropriate and added
1945 missing functions (including a catch-all ENGINE_cpy that duplicates
1946 all ENGINE values onto a new ENGINE except reference counts/state).
1947 - Removed NULL parameter checks in get/set functions. Setting a method
1948 or function to NULL is a way of cancelling out a previously set
1949 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1950 and doesn't justify the extra error symbols and code.
1951 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1952 flags from engine_int.h to engine.h.
1953 - Changed prototypes for ENGINE handler functions (init(), finish(),
1954 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1957 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1958 to the algorithm using long division. The binary algorithm can be
1959 used only if the modulus is odd. On 32-bit systems, it is faster
1960 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1961 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1962 up to 450 bits. In 64-bit environments, the binary algorithm
1963 appears to be advantageous for much longer moduli; here we use it
1964 for moduli up to 2048 bits.
1967 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1968 could not support the combine flag in choice fields.
1971 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1972 extensions from a certificate request to the certificate.
1975 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1976 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1977 file: this allows the display of the certificate about to be
1978 signed to be customised, to allow certain fields to be included
1979 or excluded and extension details. The old system didn't display
1980 multicharacter strings properly, omitted fields not in the policy
1981 and couldn't display additional details such as extensions.
1984 *) Function EC_POINTs_mul for multiple scalar multiplication
1985 of an arbitrary number of elliptic curve points
1986 \sum scalars[i]*points[i],
1987 optionally including the generator defined for the EC_GROUP:
1988 scalar*generator + \sum scalars[i]*points[i].
1990 EC_POINT_mul is a simple wrapper function for the typical case
1991 that the point list has just one item (besides the optional
1995 *) First EC_METHODs for curves over GF(p):
1997 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1998 operations and provides various method functions that can also
1999 operate with faster implementations of modular arithmetic.
2001 EC_GFp_mont_method() reuses most functions that are part of
2002 EC_GFp_simple_method, but uses Montgomery arithmetic.
2004 [Bodo Moeller; point addition and point doubling
2005 implementation directly derived from source code provided by
2006 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2008 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2009 crypto/ec/ec_lib.c):
2011 Curves are EC_GROUP objects (with an optional group generator)
2012 based on EC_METHODs that are built into the library.
2014 Points are EC_POINT objects based on EC_GROUP objects.
2016 Most of the framework would be able to handle curves over arbitrary
2017 finite fields, but as there are no obvious types for fields other
2018 than GF(p), some functions are limited to that for now.
2021 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2022 that the file contains a complete HTTP response.
2025 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2026 change the def and num file printf format specifier from "%-40sXXX"
2027 to "%-39s XXX". The latter will always guarantee a space after the
2028 field while the former will cause them to run together if the field
2029 is 40 of more characters long.
2032 *) Constify the cipher and digest 'method' functions and structures
2033 and modify related functions to take constant EVP_MD and EVP_CIPHER
2037 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2038 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2041 *) Modify EVP_Digest*() routines so they now return values. Although the
2042 internal software routines can never fail additional hardware versions
2046 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2048 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2049 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2052 ERR_R_NESTED_ASN1_ERROR
2054 ERR_R_MISSING_ASN1_EOS
2055 were 4 .. 9, conflicting with
2056 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2058 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2059 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2061 Add new error code 'ERR_R_INTERNAL_ERROR'.
2064 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2068 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2069 sets the subject name for a new request or supersedes the
2070 subject name in a given request. Formats that can be parsed are
2071 'CN=Some Name, OU=myOU, C=IT'
2073 'CN=Some Name/OU=myOU/C=IT'.
2075 Add options '-batch' and '-verbose' to 'openssl req'.
2076 [Massimiliano Pala <madwolf@hackmasters.net>]
2078 *) Introduce the possibility to access global variables through
2079 functions on platform were that's the best way to handle exporting
2080 global variables in shared libraries. To enable this functionality,
2081 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2082 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2083 is normally done by Configure or something similar).
2085 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2086 in the source file (foo.c) like this:
2088 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2089 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2091 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2092 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2094 OPENSSL_DECLARE_GLOBAL(int,foo);
2095 #define foo OPENSSL_GLOBAL_REF(foo)
2096 OPENSSL_DECLARE_GLOBAL(double,bar);
2097 #define bar OPENSSL_GLOBAL_REF(bar)
2099 The #defines are very important, and therefore so is including the
2100 header file everywhere where the defined globals are used.
2102 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2103 of ASN.1 items, but that structure is a bit different.
2105 The largest change is in util/mkdef.pl which has been enhanced with
2106 better and easier to understand logic to choose which symbols should
2107 go into the Windows .def files as well as a number of fixes and code
2108 cleanup (among others, algorithm keywords are now sorted
2109 lexicographically to avoid constant rewrites).
2112 *) In BN_div() keep a copy of the sign of 'num' before writing the
2113 result to 'rm' because if rm==num the value will be overwritten
2114 and produce the wrong result if 'num' is negative: this caused
2115 problems with BN_mod() and BN_nnmod().
2118 *) Function OCSP_request_verify(). This checks the signature on an
2119 OCSP request and verifies the signer certificate. The signer
2120 certificate is just checked for a generic purpose and OCSP request
2124 *) Add OCSP_check_validity() function to check the validity of OCSP
2125 responses. OCSP responses are prepared in real time and may only
2126 be a few seconds old. Simply checking that the current time lies
2127 between thisUpdate and nextUpdate max reject otherwise valid responses
2128 caused by either OCSP responder or client clock inaccuracy. Instead
2129 we allow thisUpdate and nextUpdate to fall within a certain period of
2130 the current time. The age of the response can also optionally be
2131 checked. Two new options -validity_period and -status_age added to
2135 *) If signature or public key algorithm is unrecognized print out its
2136 OID rather that just UNKNOWN.
2139 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2140 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2141 ID to be generated from the issuer certificate alone which can then be
2142 passed to OCSP_id_issuer_cmp().
2145 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2146 ASN1 modules to export functions returning ASN1_ITEM pointers
2147 instead of the ASN1_ITEM structures themselves. This adds several
2148 new macros which allow the underlying ASN1 function/structure to
2149 be accessed transparently. As a result code should not use ASN1_ITEM
2150 references directly (such as &X509_it) but instead use the relevant
2151 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2152 use of the new ASN1 code on platforms where exporting structures
2153 is problematical (for example in shared libraries) but exporting
2154 functions returning pointers to structures is not.
2157 *) Add support for overriding the generation of SSL/TLS session IDs.
2158 These callbacks can be registered either in an SSL_CTX or per SSL.
2159 The purpose of this is to allow applications to control, if they wish,
2160 the arbitrary values chosen for use as session IDs, particularly as it
2161 can be useful for session caching in multiple-server environments. A
2162 command-line switch for testing this (and any client code that wishes
2163 to use such a feature) has been added to "s_server".
2164 [Geoff Thorpe, Lutz Jaenicke]
2166 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2167 of the form '#if defined(...) || defined(...) || ...' and
2168 '#if !defined(...) && !defined(...) && ...'. This also avoids
2169 the growing number of special cases it was previously handling.
2172 *) Make all configuration macros available for application by making
2173 sure they are available in opensslconf.h, by giving them names starting
2174 with "OPENSSL_" to avoid conflicts with other packages and by making
2175 sure e_os2.h will cover all platform-specific cases together with
2177 Additionally, it is now possible to define configuration/platform-
2178 specific names (called "system identities"). In the C code, these
2179 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2180 macro with the name beginning with "OPENSSL_SYS_", which is determined
2181 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2185 *) New option -set_serial to 'req' and 'x509' this allows the serial
2186 number to use to be specified on the command line. Previously self
2187 signed certificates were hard coded with serial number 0 and the
2188 CA options of 'x509' had to use a serial number in a file which was
2192 *) New options to 'ca' utility to support V2 CRL entry extensions.
2193 Currently CRL reason, invalidity date and hold instruction are
2194 supported. Add new CRL extensions to V3 code and some new objects.
2197 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2198 disable standard block padding (aka PKCS#5 padding) in the EVP
2199 API, which was previously mandatory. This means that the data is
2200 not padded in any way and so the total length much be a multiple
2201 of the block size, otherwise an error occurs.
2204 *) Initial (incomplete) OCSP SSL support.
2207 *) New function OCSP_parse_url(). This splits up a URL into its host,
2208 port and path components: primarily to parse OCSP URLs. New -url
2209 option to ocsp utility.
2212 *) New nonce behavior. The return value of OCSP_check_nonce() now
2213 reflects the various checks performed. Applications can decide
2214 whether to tolerate certain situations such as an absent nonce
2215 in a response when one was present in a request: the ocsp application
2216 just prints out a warning. New function OCSP_add1_basic_nonce()
2217 this is to allow responders to include a nonce in a response even if
2218 the request is nonce-less.
2221 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2222 skipped when using openssl x509 multiple times on a single input file,
2223 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2226 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2227 set string type: to handle setting ASN1_TIME structures. Fix ca
2228 utility to correctly initialize revocation date of CRLs.
2231 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2232 the clients preferred ciphersuites and rather use its own preferences.
2233 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2234 Internet Explorer by ensuring unchanged hash method during stepup.
2235 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2238 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2239 to aes and add a new 'exist' option to print out symbols that don't
2243 *) Additional options to ocsp utility to allow flags to be set and
2244 additional certificates supplied.
2247 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2248 OCSP client a number of certificate to only verify the response
2252 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2253 handle the new API. Currently only ECB, CBC modes supported. Add new
2256 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2257 Encryption Standard (AES) Ciphersuites for Transport Layer
2258 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2259 not enabled by default and were not part of the "ALL" ciphersuite
2260 alias because they were not yet official; they could be
2261 explicitly requested by specifying the "AESdraft" ciphersuite
2262 group alias. In the final release of OpenSSL 0.9.7, the group
2263 alias is called "AES" and is part of "ALL".)
2264 [Ben Laurie, Steve Henson, Bodo Moeller]
2266 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2267 request to response.
2270 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2271 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2272 extract information from a certificate request. OCSP_response_create()
2273 creates a response and optionally adds a basic response structure.
2274 OCSP_basic_add1_status() adds a complete single response to a basic
2275 response and returns the OCSP_SINGLERESP structure just added (to allow
2276 extensions to be included for example). OCSP_basic_add1_cert() adds a
2277 certificate to a basic response and OCSP_basic_sign() signs a basic
2278 response with various flags. New helper functions ASN1_TIME_check()
2279 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2280 (converts ASN1_TIME to GeneralizedTime).
2283 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2284 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2285 structure from a certificate. X509_pubkey_digest() digests the public_key
2286 contents: this is used in various key identifiers.
2289 *) Make sk_sort() tolerate a NULL argument.
2290 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2292 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2293 passed by the function are trusted implicitly. If any of them signed the
2294 response then it is assumed to be valid and is not verified.
2297 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2298 to data. This was previously part of the PKCS7 ASN1 code. This
2299 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2300 [Steve Henson, reported by Kenneth R. Robinette
2301 <support@securenetterm.com>]
2303 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2304 routines: without these tracing memory leaks is very painful.
2305 Fix leaks in PKCS12 and PKCS7 routines.
2308 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2309 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2310 effectively meant GeneralizedTime would never be used. Now it
2311 is initialised to -1 but X509_time_adj() now has to check the value
2312 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2313 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2314 [Steve Henson, reported by Kenneth R. Robinette
2315 <support@securenetterm.com>]
2317 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2318 result in a zero length in the ASN1_INTEGER structure which was
2319 not consistent with the structure when d2i_ASN1_INTEGER() was used
2320 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2321 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2322 where it did not print out a minus for negative ASN1_INTEGER.
2325 *) Add summary printout to ocsp utility. The various functions which
2326 convert status values to strings have been renamed to:
2327 OCSP_response_status_str(), OCSP_cert_status_str() and
2328 OCSP_crl_reason_str() and are no longer static. New options
2329 to verify nonce values and to disable verification. OCSP response
2330 printout format cleaned up.
2333 *) Add additional OCSP certificate checks. These are those specified
2334 in RFC2560. This consists of two separate checks: the CA of the
2335 certificate being checked must either be the OCSP signer certificate
2336 or the issuer of the OCSP signer certificate. In the latter case the
2337 OCSP signer certificate must contain the OCSP signing extended key
2338 usage. This check is performed by attempting to match the OCSP
2339 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2340 in the OCSP_CERTID structures of the response.
2343 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2344 and related routines. This uses the standard OpenSSL certificate
2345 verify routines to perform initial checks (just CA validity) and
2346 to obtain the certificate chain. Then additional checks will be
2347 performed on the chain. Currently the root CA is checked to see
2348 if it is explicitly trusted for OCSP signing. This is used to set
2349 a root CA as a global signing root: that is any certificate that
2350 chains to that CA is an acceptable OCSP signing certificate.
2353 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2354 extensions from a separate configuration file.
2355 As when reading extensions from the main configuration file,
2356 the '-extensions ...' option may be used for specifying the
2358 [Massimiliano Pala <madwolf@comune.modena.it>]
2360 *) New OCSP utility. Allows OCSP requests to be generated or
2361 read. The request can be sent to a responder and the output
2362 parsed, outputed or printed in text form. Not complete yet:
2363 still needs to check the OCSP response validity.
2366 *) New subcommands for 'openssl ca':
2367 'openssl ca -status <serial>' prints the status of the cert with
2368 the given serial number (according to the index file).
2369 'openssl ca -updatedb' updates the expiry status of certificates
2371 [Massimiliano Pala <madwolf@comune.modena.it>]
2373 *) New '-newreq-nodes' command option to CA.pl. This is like
2374 '-newreq', but calls 'openssl req' with the '-nodes' option
2375 so that the resulting key is not encrypted.
2376 [Damien Miller <djm@mindrot.org>]
2378 *) New configuration for the GNU Hurd.
2379 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2381 *) Initial code to implement OCSP basic response verify. This
2382 is currently incomplete. Currently just finds the signer's
2383 certificate and verifies the signature on the response.
2386 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2387 value of OPENSSLDIR. This is available via the new '-d' option
2388 to 'openssl version', and is also included in 'openssl version -a'.
2391 *) Allowing defining memory allocation callbacks that will be given
2392 file name and line number information in additional arguments
2393 (a const char* and an int). The basic functionality remains, as
2394 well as the original possibility to just replace malloc(),
2395 realloc() and free() by functions that do not know about these
2396 additional arguments. To register and find out the current
2397 settings for extended allocation functions, the following
2398 functions are provided:
2400 CRYPTO_set_mem_ex_functions
2401 CRYPTO_set_locked_mem_ex_functions
2402 CRYPTO_get_mem_ex_functions
2403 CRYPTO_get_locked_mem_ex_functions
2405 These work the same way as CRYPTO_set_mem_functions and friends.
2406 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2407 extended allocation function is enabled.
2408 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2409 a conventional allocation function is enabled.
2410 [Richard Levitte, Bodo Moeller]
2412 *) Finish off removing the remaining LHASH function pointer casts.
2413 There should no longer be any prototype-casting required when using
2414 the LHASH abstraction, and any casts that remain are "bugs". See
2415 the callback types and macros at the head of lhash.h for details
2416 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2419 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2420 If /dev/[u]random devices are not available or do not return enough
2421 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2423 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2424 /etc/entropy will be queried once each in this sequence, quering stops
2425 when enough entropy was collected without querying more sockets.
2428 *) Change the Unix RAND_poll() variant to be able to poll several
2429 random devices, as specified by DEVRANDOM, until a sufficient amount
2430 of data has been collected. We spend at most 10 ms on each file
2431 (select timeout) and read in non-blocking mode. DEVRANDOM now
2432 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2433 (previously it was just the string "/dev/urandom"), so on typical
2434 platforms the 10 ms delay will never occur.
2435 Also separate out the Unix variant to its own file, rand_unix.c.
2436 For VMS, there's a currently-empty rand_vms.c.
2439 *) Move OCSP client related routines to ocsp_cl.c. These
2440 provide utility functions which an application needing
2441 to issue a request to an OCSP responder and analyse the
2442 response will typically need: as opposed to those which an
2443 OCSP responder itself would need which will be added later.
2445 OCSP_request_sign() signs an OCSP request with an API similar
2446 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2447 response. OCSP_response_get1_basic() extracts basic response
2448 from response. OCSP_resp_find_status(): finds and extracts status
2449 information from an OCSP_CERTID structure (which will be created
2450 when the request structure is built). These are built from lower
2451 level functions which work on OCSP_SINGLERESP structures but
2452 wont normally be used unless the application wishes to examine
2453 extensions in the OCSP response for example.
2455 Replace nonce routines with a pair of functions.
2456 OCSP_request_add1_nonce() adds a nonce value and optionally
2457 generates a random value. OCSP_check_nonce() checks the
2458 validity of the nonce in an OCSP response.
2461 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2462 This doesn't copy the supplied OCSP_CERTID and avoids the
2463 need to free up the newly created id. Change return type
2464 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2465 This can then be used to add extensions to the request.
2466 Deleted OCSP_request_new(), since most of its functionality
2467 is now in OCSP_REQUEST_new() (and the case insensitive name
2468 clash) apart from the ability to set the request name which
2469 will be added elsewhere.
2472 *) Update OCSP API. Remove obsolete extensions argument from
2473 various functions. Extensions are now handled using the new
2474 OCSP extension code. New simple OCSP HTTP function which
2475 can be used to send requests and parse the response.
2478 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2479 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2480 uses the special reorder version of SET OF to sort the attributes
2481 and reorder them to match the encoded order. This resolves a long
2482 standing problem: a verify on a PKCS7 structure just after signing
2483 it used to fail because the attribute order did not match the
2484 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2485 it uses the received order. This is necessary to tolerate some broken
2486 software that does not order SET OF. This is handled by encoding
2487 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2488 to produce the required SET OF.
2491 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2492 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2493 files to get correct declarations of the ASN.1 item variables.
2496 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2497 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2498 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2499 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2500 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2501 ASN1_ITEM and no wrapper functions.
2504 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2505 replace the old function pointer based I/O routines. Change most of
2506 the *_d2i_bio() and *_d2i_fp() functions to use these.
2509 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2510 lines, recognice more "algorithms" that can be deselected, and make
2511 it complain about algorithm deselection that isn't recognised.
2514 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2515 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2516 to use new functions. Add NO_ASN1_OLD which can be set to remove
2517 some old style ASN1 functions: this can be used to determine if old
2518 code will still work when these eventually go away.
2521 *) New extension functions for OCSP structures, these follow the
2522 same conventions as certificates and CRLs.
2525 *) New function X509V3_add1_i2d(). This automatically encodes and
2526 adds an extension. Its behaviour can be customised with various
2527 flags to append, replace or delete. Various wrappers added for
2528 certifcates and CRLs.
2531 *) Fix to avoid calling the underlying ASN1 print routine when
2532 an extension cannot be parsed. Correct a typo in the
2533 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2536 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2537 entries for variables.
2540 *) Add functionality to apps/openssl.c for detecting locking
2541 problems: As the program is single-threaded, all we have
2542 to do is register a locking callback using an array for
2543 storing which locks are currently held by the program.
2546 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2547 SSL_get_ex_data_X509_STORE_idx(), which is used in
2548 ssl_verify_cert_chain() and thus can be called at any time
2549 during TLS/SSL handshakes so that thread-safety is essential.
2550 Unfortunately, the ex_data design is not at all suited
2551 for multi-threaded use, so it probably should be abolished.
2554 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2555 [Broadcom, tweaked and integrated by Geoff Thorpe]
2557 *) Move common extension printing code to new function
2558 X509V3_print_extensions(). Reorganise OCSP print routines and
2559 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2562 *) New function X509_signature_print() to remove duplication in some
2566 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2567 set (this was treated exactly the same as SET OF previously). This
2568 is used to reorder the STACK representing the structure to match the
2569 encoding. This will be used to get round a problem where a PKCS7
2570 structure which was signed could not be verified because the STACK
2571 order did not reflect the encoded order.
2574 *) Reimplement the OCSP ASN1 module using the new code.
2577 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2578 for its ASN1 operations. The old style function pointers still exist
2579 for now but they will eventually go away.
2582 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2583 completely replaces the old ASN1 functionality with a table driven
2584 encoder and decoder which interprets an ASN1_ITEM structure describing
2585 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2586 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2587 has also been converted to the new form.
2590 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2591 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2592 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2593 for negative moduli.
2596 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2597 of not touching the result's sign bit.
2600 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2604 *) Changed the LHASH code to use prototypes for callbacks, and created
2605 macros to declare and implement thin (optionally static) functions
2606 that provide type-safety and avoid function pointer casting for the
2607 type-specific callbacks.
2610 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2612 [Veers Staats <staatsvr@asc.hpc.mil>,
2613 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2615 *) Reformat the FAQ so the different questions and answers can be divided
2616 in sections depending on the subject.
2619 *) Have the zlib compression code load ZLIB.DLL dynamically under
2623 *) New function BN_mod_sqrt for computing square roots modulo a prime
2624 (using the probabilistic Tonelli-Shanks algorithm unless
2625 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2626 be handled deterministically).
2627 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2629 *) Make BN_mod_inverse faster by explicitly handling small quotients
2630 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2631 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2634 *) New function BN_kronecker.
2637 *) Fix BN_gcd so that it works on negative inputs; the result is
2638 positive unless both parameters are zero.
2639 Previously something reasonably close to an infinite loop was
2640 possible because numbers could be growing instead of shrinking
2641 in the implementation of Euclid's algorithm.
2644 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2645 sign of the number in question.
2647 Fix BN_is_word(a,w) to work correctly for w == 0.
2649 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2650 because its test if the absolute value of 'a' equals 'w'.
2651 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2652 it exists mostly for use in the implementations of BN_is_zero(),
2653 BN_is_one(), and BN_is_word().
2656 *) New function BN_swap.
2659 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2660 the exponentiation functions are more likely to produce reasonable
2661 results on negative inputs.
2664 *) Change BN_mod_mul so that the result is always non-negative.
2665 Previously, it could be negative if one of the factors was negative;
2666 I don't think anyone really wanted that behaviour.
2669 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2670 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2671 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2672 and add new functions:
2681 BN_mod_lshift1_quick
2685 These functions always generate non-negative results.
2687 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2688 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2690 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2691 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2692 be reduced modulo m.
2693 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2696 The following entry accidentily appeared in the CHANGES file
2697 distributed with OpenSSL 0.9.7. The modifications described in
2698 it do *not* apply to OpenSSL 0.9.7.
2700 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2701 was actually never needed) and in BN_mul(). The removal in BN_mul()
2702 required a small change in bn_mul_part_recursive() and the addition
2703 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2704 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2705 bn_sub_words() and bn_add_words() except they take arrays with
2710 *) In 'openssl passwd', verify passwords read from the terminal
2711 unless the '-salt' option is used (which usually means that
2712 verification would just waste user's time since the resulting
2713 hash is going to be compared with some given password hash)
2714 or the new '-noverify' option is used.
2716 This is an incompatible change, but it does not affect
2717 non-interactive use of 'openssl passwd' (passwords on the command
2718 line, '-stdin' option, '-in ...' option) and thus should not
2722 *) Remove all references to RSAref, since there's no more need for it.
2725 *) Make DSO load along a path given through an environment variable
2726 (SHLIB_PATH) with shl_load().
2729 *) Constify the ENGINE code as a result of BIGNUM constification.
2730 Also constify the RSA code and most things related to it. In a
2731 few places, most notable in the depth of the ASN.1 code, ugly
2732 casts back to non-const were required (to be solved at a later
2736 *) Make it so the openssl application has all engines loaded by default.
2739 *) Constify the BIGNUM routines a little more.
2742 *) Add the following functions:
2744 ENGINE_load_cswift()
2746 ENGINE_load_atalla()
2748 ENGINE_load_builtin_engines()
2750 That way, an application can itself choose if external engines that
2751 are built-in in OpenSSL shall ever be used or not. The benefit is
2752 that applications won't have to be linked with libdl or other dso
2753 libraries unless it's really needed.
2755 Changed 'openssl engine' to load all engines on demand.
2756 Changed the engine header files to avoid the duplication of some
2757 declarations (they differed!).
2760 *) 'openssl engine' can now list capabilities.
2763 *) Better error reporting in 'openssl engine'.
2766 *) Never call load_dh_param(NULL) in s_server.
2769 *) Add engine application. It can currently list engines by name and
2770 identity, and test if they are actually available.
2773 *) Improve RPM specification file by forcing symbolic linking and making
2774 sure the installed documentation is also owned by root.root.
2775 [Damien Miller <djm@mindrot.org>]
2777 *) Give the OpenSSL applications more possibilities to make use of
2778 keys (public as well as private) handled by engines.
2781 *) Add OCSP code that comes from CertCo.
2784 *) Add VMS support for the Rijndael code.
2787 *) Added untested support for Nuron crypto accelerator.
2790 *) Add support for external cryptographic devices. This code was
2791 previously distributed separately as the "engine" branch.
2792 [Geoff Thorpe, Richard Levitte]
2794 *) Rework the filename-translation in the DSO code. It is now possible to
2795 have far greater control over how a "name" is turned into a filename
2796 depending on the operating environment and any oddities about the
2797 different shared library filenames on each system.
2800 *) Support threads on FreeBSD-elf in Configure.
2803 *) Fix for SHA1 assembly problem with MASM: it produces
2804 warnings about corrupt line number information when assembling
2805 with debugging information. This is caused by the overlapping
2807 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2810 NCONF_get_number() has no error checking at all. As a replacement,
2811 NCONF_get_number_e() is defined (_e for "error checking") and is
2812 promoted strongly. The old NCONF_get_number is kept around for
2813 binary backward compatibility.
2814 Make it possible for methods to load from something other than a BIO,
2815 by providing a function pointer that is given a name instead of a BIO.
2816 For example, this could be used to load configuration data from an
2820 *) Fix for non blocking accept BIOs. Added new I/O special reason
2821 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2822 with non blocking I/O was not possible because no retry code was
2823 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2827 *) Added the beginnings of Rijndael support.
2830 *) Fix for bug in DirectoryString mask setting. Add support for
2831 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2832 to allow certificate printing to more controllable, additional
2833 'certopt' option to 'x509' to allow new printing options to be
2837 *) Clean old EAY MD5 hack from e_os.h.
2840 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2842 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2843 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
2844 [Joe Orton, Steve Henson]
2846 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2848 *) Fix additional bug revealed by the NISCC test suite:
2850 Stop bug triggering large recursion when presented with
2851 certain ASN.1 tags (CAN-2003-0851)
2854 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2856 *) Fix various bugs revealed by running the NISCC test suite:
2858 Stop out of bounds reads in the ASN1 code when presented with
2859 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2861 If verify callback ignores invalid public key errors don't try to check
2862 certificate signature with the NULL public key.
2866 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2867 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2871 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2872 extra data after the compression methods not only for TLS 1.0
2873 but also for SSL 3.0 (as required by the specification).
2874 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2876 *) Change X509_certificate_type() to mark the key as exported/exportable
2877 when it's 512 *bits* long, not 512 bytes.
2880 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2882 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2883 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2884 a protocol version number mismatch like a decryption error
2885 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2888 *) Turn on RSA blinding by default in the default implementation
2889 to avoid a timing attack. Applications that don't want it can call
2890 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2891 They would be ill-advised to do so in most cases.
2892 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2894 *) Change RSA blinding code so that it works when the PRNG is not
2895 seeded (in this case, the secret RSA exponent is abused as
2896 an unpredictable seed -- if it is not unpredictable, there
2897 is no point in blinding anyway). Make RSA blinding thread-safe
2898 by remembering the creator's thread ID in rsa->blinding and
2899 having all other threads use local one-time blinding factors
2900 (this requires more computation than sharing rsa->blinding, but
2901 avoids excessive locking; and if an RSA object is not shared
2902 between threads, blinding will still be very fast).
2905 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2907 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2908 via timing by performing a MAC computation even if incorrrect
2909 block cipher padding has been found. This is a countermeasure
2910 against active attacks where the attacker has to distinguish
2911 between bad padding and a MAC verification error. (CAN-2003-0078)
2913 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2914 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2915 Martin Vuagnoux (EPFL, Ilion)]
2917 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2919 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2920 memory from it's contents. This is done with a counter that will
2921 place alternating values in each byte. This can be used to solve
2922 two issues: 1) the removal of calls to memset() by highly optimizing
2923 compilers, and 2) cleansing with other values than 0, since those can
2924 be read through on certain media, for example a swap space on disk.
2927 *) Bugfix: client side session caching did not work with external caching,
2928 because the session->cipher setting was not restored when reloading
2929 from the external cache. This problem was masked, when
2930 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2931 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2934 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2935 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2936 [Zeev Lieber <zeev-l@yahoo.com>]
2938 *) Undo an undocumented change introduced in 0.9.6e which caused
2939 repeated calls to OpenSSL_add_all_ciphers() and
2940 OpenSSL_add_all_digests() to be ignored, even after calling
2944 *) Change the default configuration reader to deal with last line not
2945 being properly terminated.
2948 *) Change X509_NAME_cmp() so it applies the special rules on handling
2949 DN values that are of type PrintableString, as well as RDNs of type
2950 emailAddress where the value has the type ia5String.
2951 [stefank@valicert.com via Richard Levitte]
2953 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2954 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2955 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2956 the bitwise-OR of the two for use by the majority of applications
2957 wanting this behaviour, and update the docs. The documented
2958 behaviour and actual behaviour were inconsistent and had been
2959 changing anyway, so this is more a bug-fix than a behavioural
2961 [Geoff Thorpe, diagnosed by Nadav Har'El]
2963 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2964 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2967 *) Fix initialization code race conditions in
2968 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2969 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2970 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2971 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2972 ssl2_get_cipher_by_char(),
2973 ssl3_get_cipher_by_char().
2974 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2976 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2977 the cached sessions are flushed, as the remove_cb() might use ex_data
2978 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2979 (see [openssl.org #212]).
2980 [Geoff Thorpe, Lutz Jaenicke]
2982 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2983 length, instead of the encoding length to d2i_ASN1_OBJECT.
2986 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2988 *) [In 0.9.6g-engine release:]
2989 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2990 [Lynn Gazis <lgazis@rainbow.com>]
2992 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2994 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2995 and get fix the header length calculation.
2996 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2997 Alon Kantor <alonk@checkpoint.com> (and others),
3000 *) Use proper error handling instead of 'assertions' in buffer
3001 overflow checks added in 0.9.6e. This prevents DoS (the
3002 assertions could call abort()).
3003 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3005 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3007 *) Add various sanity checks to asn1_get_length() to reject
3008 the ASN1 length bytes if they exceed sizeof(long), will appear
3009 negative or the content length exceeds the length of the
3011 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3013 *) Fix cipher selection routines: ciphers without encryption had no flags
3014 for the cipher strength set and where therefore not handled correctly
3015 by the selection routines (PR #130).
3018 *) Fix EVP_dsa_sha macro.
3022 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3023 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3024 that was added in OpenSSL 0.9.6d.
3026 As the countermeasure turned out to be incompatible with some
3027 broken SSL implementations, the new option is part of SSL_OP_ALL.
3028 SSL_OP_ALL is usually employed when compatibility with weird SSL
3029 implementations is desired (e.g. '-bugs' option to 's_client' and
3030 's_server'), so the new option is automatically set in many
3034 *) Changes in security patch:
3036 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3037 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3038 Air Force Materiel Command, USAF, under agreement number
3041 *) Add various sanity checks to asn1_get_length() to reject
3042 the ASN1 length bytes if they exceed sizeof(long), will appear
3043 negative or the content length exceeds the length of the
3044 supplied buffer. (CAN-2002-0659)
3045 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3047 *) Assertions for various potential buffer overflows, not known to
3049 [Ben Laurie (CHATS)]
3051 *) Various temporary buffers to hold ASCII versions of integers were
3052 too small for 64 bit platforms. (CAN-2002-0655)
3053 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3055 *) Remote buffer overflow in SSL3 protocol - an attacker could
3056 supply an oversized session ID to a client. (CAN-2002-0656)
3057 [Ben Laurie (CHATS)]
3059 *) Remote buffer overflow in SSL2 protocol - an attacker could
3060 supply an oversized client master key. (CAN-2002-0656)
3061 [Ben Laurie (CHATS)]
3063 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3065 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3066 encoded as NULL) with id-dsa-with-sha1.
3067 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3069 *) Check various X509_...() return values in apps/req.c.
3070 [Nils Larsch <nla@trustcenter.de>]
3072 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3073 an end-of-file condition would erronously be flagged, when the CRLF
3074 was just at the end of a processed block. The bug was discovered when
3075 processing data through a buffering memory BIO handing the data to a
3076 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3077 <ptsekov@syntrex.com> and Nedelcho Stanev.
3080 *) Implement a countermeasure against a vulnerability recently found
3081 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3082 before application data chunks to avoid the use of known IVs
3083 with data potentially chosen by the attacker.
3086 *) Fix length checks in ssl3_get_client_hello().
3089 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3090 to prevent ssl3_read_internal() from incorrectly assuming that
3091 ssl3_read_bytes() found application data while handshake
3092 processing was enabled when in fact s->s3->in_read_app_data was
3093 merely automatically cleared during the initial handshake.
3094 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3096 *) Fix object definitions for Private and Enterprise: they were not
3097 recognized in their shortname (=lowercase) representation. Extend
3098 obj_dat.pl to issue an error when using undefined keywords instead
3099 of silently ignoring the problem (Svenning Sorensen
3100 <sss@sss.dnsalias.net>).
3103 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3104 generators, i.e. generators other than 2 and 5. (Previously, the
3105 code did not properly initialise the 'add' and 'rem' values to
3106 BN_generate_prime().)
3108 In the new general case, we do not insist that 'generator' is
3109 actually a primitive root: This requirement is rather pointless;
3110 a generator of the order-q subgroup is just as good, if not
3114 *) Map new X509 verification errors to alerts. Discovered and submitted by
3115 Tom Wu <tom@arcot.com>.
3118 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3119 returning non-zero before the data has been completely received
3120 when using non-blocking I/O.
3121 [Bodo Moeller; problem pointed out by John Hughes]
3123 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3124 [Ben Laurie, Lutz Jaenicke]
3126 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3127 Yoram Zahavi <YoramZ@gilian.com>).
3130 *) Add information about CygWin 1.3 and on, and preserve proper
3131 configuration for the versions before that.
3132 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3134 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3135 check whether we deal with a copy of a session and do not delete from
3136 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3137 <izhar@checkpoint.com>.
3140 *) Do not store session data into the internal session cache, if it
3141 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3142 flag is set). Proposed by Aslam <aslam@funk.com>.
3145 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3149 *) [In 0.9.6d-engine release:]
3150 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3151 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3153 *) Add the configuration target linux-s390x.
3154 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3156 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3157 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3158 variable as an indication that a ClientHello message has been
3159 received. As the flag value will be lost between multiple
3160 invocations of ssl3_accept when using non-blocking I/O, the
3161 function may not be aware that a handshake has actually taken
3162 place, thus preventing a new session from being added to the
3165 To avoid this problem, we now set s->new_session to 2 instead of
3166 using a local variable.
3167 [Lutz Jaenicke, Bodo Moeller]
3169 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3170 if the SSL_R_LENGTH_MISMATCH error is detected.
3171 [Geoff Thorpe, Bodo Moeller]
3173 *) New 'shared_ldflag' column in Configure platform table.
3176 *) Fix EVP_CIPHER_mode macro.
3177 ["Dan S. Camper" <dan@bti.net>]
3179 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3180 type, we must throw them away by setting rr->length to 0.
3181 [D P Chang <dpc@qualys.com>]
3183 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3185 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3186 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3187 worked incorrectly for those cases where range = 10..._2 and
3188 3*range is two bits longer than range.)
3191 *) Only add signing time to PKCS7 structures if it is not already
3195 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3196 OBJ_ld_ce should be OBJ_id_ce.
3197 Also some ip-pda OIDs in crypto/objects/objects.txt were
3198 incorrect (cf. RFC 3039).
3199 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3201 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3202 returns early because it has nothing to do.
3203 [Andy Schneider <andy.schneider@bjss.co.uk>]
3205 *) [In 0.9.6c-engine release:]
3206 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3207 [Andy Schneider <andy.schneider@bjss.co.uk>]
3209 *) [In 0.9.6c-engine release:]
3210 Add support for Cryptographic Appliance's keyserver technology.
3211 (Use engine 'keyclient')
3212 [Cryptographic Appliances and Geoff Thorpe]
3214 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3215 is called via tools/c89.sh because arguments have to be
3216 rearranged (all '-L' options must appear before the first object
3218 [Richard Shapiro <rshapiro@abinitio.com>]
3220 *) [In 0.9.6c-engine release:]
3221 Add support for Broadcom crypto accelerator cards, backported
3223 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3225 *) [In 0.9.6c-engine release:]
3226 Add support for SureWare crypto accelerator cards from
3227 Baltimore Technologies. (Use engine 'sureware')
3228 [Baltimore Technologies and Mark Cox]
3230 *) [In 0.9.6c-engine release:]
3231 Add support for crypto accelerator cards from Accelerated
3232 Encryption Processing, www.aep.ie. (Use engine 'aep')
3233 [AEP Inc. and Mark Cox]
3235 *) Add a configuration entry for gcc on UnixWare.
3236 [Gary Benson <gbenson@redhat.com>]
3238 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3239 messages are stored in a single piece (fixed-length part and
3240 variable-length part combined) and fix various bugs found on the way.
3243 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3244 instead. BIO_gethostbyname() does not know what timeouts are
3245 appropriate, so entries would stay in cache even when they have
3247 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3249 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3250 faced with a pathologically small ClientHello fragment that does
3251 not contain client_version: Instead of aborting with an error,
3252 simply choose the highest available protocol version (i.e.,
3253 TLS 1.0 unless it is disabled). In practice, ClientHello
3254 messages are never sent like this, but this change gives us
3255 strictly correct behaviour at least for TLS.
3258 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3259 never resets s->method to s->ctx->method when called from within
3260 one of the SSL handshake functions.
3261 [Bodo Moeller; problem pointed out by Niko Baric]
3263 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3264 (sent using the client's version number) if client_version is
3265 smaller than the protocol version in use. Also change
3266 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3267 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3268 the client will at least see that alert.
3271 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3275 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3276 client receives HelloRequest while in a handshake.
3277 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3279 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3280 should end in 'break', not 'goto end' which circuments various
3281 cleanups done in state SSL_ST_OK. But session related stuff
3282 must be disabled for SSL_ST_OK in the case that we just sent a
3285 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3286 before just sending a HelloRequest.
3287 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3289 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3290 reveal whether illegal block cipher padding was found or a MAC
3291 verification error occured. (Neither SSLerr() codes nor alerts
3292 are directly visible to potential attackers, but the information
3293 may leak via logfiles.)
3295 Similar changes are not required for the SSL 2.0 implementation
3296 because the number of padding bytes is sent in clear for SSL 2.0,
3297 and the extra bytes are just ignored. However ssl/s2_pkt.c
3298 failed to verify that the purported number of padding bytes is in
3302 *) Add OpenUNIX-8 support including shared libraries
3303 (Boyd Lynn Gerber <gerberb@zenez.com>).
3306 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3307 'wristwatch attack' using huge encoding parameters (cf.
3308 James H. Manger's CRYPTO 2001 paper). Note that the
3309 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3310 encoding parameters and hence was not vulnerable.
3313 *) BN_sqr() bug fix.
3314 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3316 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3317 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3318 followed by modular reduction.
3319 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3321 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3322 equivalent based on BN_pseudo_rand() instead of BN_rand().
3325 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3326 This function was broken, as the check for a new client hello message
3327 to handle SGC did not allow these large messages.
3328 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3331 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3334 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3335 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3338 *) Rework the configuration and shared library support for Tru64 Unix.
3339 The configuration part makes use of modern compiler features and
3340 still retains old compiler behavior for those that run older versions
3341 of the OS. The shared library support part includes a variant that
3342 uses the RPATH feature, and is available through the special
3343 configuration target "alpha-cc-rpath", which will never be selected
3345 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3347 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3348 with the same message size as in ssl3_get_certificate_request().
3349 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3350 messages might inadvertently be reject as too long.
3351 [Petr Lampa <lampa@fee.vutbr.cz>]
3353 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3356 *) Modified SSL library such that the verify_callback that has been set
3357 specificly for an SSL object with SSL_set_verify() is actually being
3358 used. Before the change, a verify_callback set with this function was
3359 ignored and the verify_callback() set in the SSL_CTX at the time of
3360 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3361 to allow the necessary settings.
3364 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3365 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3366 done automatically (in contradiction to the requirements of the C
3367 standard). This made problems when used from OpenSSH.
3370 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3371 dh->length and always used
3373 BN_rand_range(priv_key, dh->p).
3375 BN_rand_range() is not necessary for Diffie-Hellman, and this
3376 specific range makes Diffie-Hellman unnecessarily inefficient if
3377 dh->length (recommended exponent length) is much smaller than the
3378 length of dh->p. We could use BN_rand_range() if the order of
3379 the subgroup was stored in the DH structure, but we only have
3384 BN_rand(priv_key, l, ...)
3386 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3392 RSA_eay_public_encrypt
3393 RSA_eay_private_decrypt
3394 RSA_eay_private_encrypt (signing)
3395 RSA_eay_public_decrypt (signature verification)
3397 (default implementations for RSA_public_encrypt,
3398 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3399 always reject numbers >= n.
3402 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3403 to synchronize access to 'locking_thread'. This is necessary on
3404 systems where access to 'locking_thread' (an 'unsigned long'
3405 variable) is not atomic.
3408 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3409 *before* setting the 'crypto_lock_rand' flag. The previous code had
3410 a race condition if 0 is a valid thread ID.
3411 [Travis Vitek <vitek@roguewave.com>]
3413 *) Add support for shared libraries under Irix.
3414 [Albert Chin-A-Young <china@thewrittenword.com>]
3416 *) Add configuration option to build on Linux on both big-endian and
3418 [Ralf Baechle <ralf@uni-koblenz.de>]
3420 *) Add the possibility to create shared libraries on HP-UX.
3423 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3425 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3426 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3427 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3428 PRNG state recovery was possible based on the output of
3429 one PRNG request appropriately sized to gain knowledge on
3430 'md' followed by enough consecutive 1-byte PRNG requests
3431 to traverse all of 'state'.
3433 1. When updating 'md_local' (the current thread's copy of 'md')
3434 during PRNG output generation, hash all of the previous
3435 'md_local' value, not just the half used for PRNG output.
3437 2. Make the number of bytes from 'state' included into the hash
3438 independent from the number of PRNG bytes requested.
3440 The first measure alone would be sufficient to avoid
3441 Markku-Juhani's attack. (Actually it had never occurred
3442 to me that the half of 'md_local' used for chaining was the
3443 half from which PRNG output bytes were taken -- I had always
3444 assumed that the secret half would be used.) The second
3445 measure makes sure that additional data from 'state' is never
3446 mixed into 'md_local' in small portions; this heuristically
3447 further strengthens the PRNG.
3450 *) Fix crypto/bn/asm/mips3.s.
3453 *) When only the key is given to "enc", the IV is undefined. Print out
3454 an error message in this case.
3457 *) Handle special case when X509_NAME is empty in X509 printing routines.
3460 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3461 positive and less than q.
3464 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3465 used: it isn't thread safe and the add_lock_callback should handle
3467 [Paul Rose <Paul.Rose@bridge.com>]
3469 *) Verify that incoming data obeys the block size in
3470 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3474 [Ulf Möller, Bodo Möller]
3476 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3477 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3478 when fixing the server behaviour for backwards-compatible 'client
3479 hello' messages. (Note that the attack is impractical against
3480 SSL 3.0 and TLS 1.0 anyway because length and version checking
3481 means that the probability of guessing a valid ciphertext is
3482 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3485 Before 0.9.5, the countermeasure (hide the error by generating a
3486 random 'decryption result') did not work properly because
3487 ERR_clear_error() was missing, meaning that SSL_get_error() would
3488 detect the supposedly ignored error.
3490 Both problems are now fixed.
3493 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3494 (previously it was 1024).
3497 *) Fix for compatibility mode trust settings: ignore trust settings
3498 unless some valid trust or reject settings are present.
3501 *) Fix for blowfish EVP: its a variable length cipher.
3504 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3505 parameters in DSA public key structures and return an error in the
3506 DSA routines if parameters are absent.
3509 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3510 in the current directory if neither $RANDFILE nor $HOME was set.
3511 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3512 caused some confusion to Windows users who haven't defined $HOME.
3513 Thus RAND_file_name() is changed again: e_os.h can define a
3514 DEFAULT_HOME, which will be used if $HOME is not set.
3515 For Windows, we use "C:"; on other platforms, we still require
3516 environment variables.
3518 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3519 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3520 having multiple threads call RAND_poll() concurrently.
3523 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3524 combination of a flag and a thread ID variable.
3525 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3526 flag), *other* threads can enter ssleay_add_bytes without obeying
3527 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3528 that they do not hold after the first thread unsets add_do_not_lock).
3531 *) Change bctest again: '-x' expressions are not available in all
3535 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3537 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3538 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3540 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3541 the default extension for executables, if any. Also, make the perl
3542 scripts that use symlink() to test if it really exists and use "cp"
3543 if it doesn't. All this made OpenSSL compilable and installable in
3547 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3548 If SEQUENCE is length is indefinite just set c->slen to the total
3549 amount of data available.
3550 [Steve Henson, reported by shige@FreeBSD.org]
3551 [This change does not apply to 0.9.7.]
3553 *) Change bctest to avoid here-documents inside command substitution
3554 (workaround for FreeBSD /bin/sh bug).
3555 For compatibility with Ultrix, avoid shell functions (introduced
3556 in the bctest version that searches along $PATH).
3559 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3560 with des_encrypt() defined on some operating systems, like Solaris
3564 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3565 On the Importance of Eliminating Errors in Cryptographic
3566 Computations, J. Cryptology 14 (2001) 2, 101-119,
3567 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3570 *) MIPS assembler BIGNUM division bug fix.
3573 *) Disabled incorrect Alpha assembler code.
3576 *) Fix PKCS#7 decode routines so they correctly update the length
3577 after reading an EOC for the EXPLICIT tag.
3579 [This change does not apply to 0.9.7.]
3581 *) Fix bug in PKCS#12 key generation routines. This was triggered
3582 if a 3DES key was generated with a 0 initial byte. Include
3583 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3584 (but broken) behaviour.
3587 *) Enhance bctest to search for a working bc along $PATH and print
3589 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3591 *) Fix memory leaks in err.c: free err_data string if necessary;
3592 don't write to the wrong index in ERR_set_error_data.
3595 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3599 *) Replace rdtsc with _emit statements for VC++ version 5.
3600 [Jeremy Cooper <jeremy@baymoo.org>]
3602 *) Make it possible to reuse SSLv2 sessions.
3605 *) In copy_email() check for >= 0 as a return value for
3606 X509_NAME_get_index_by_NID() since 0 is a valid index.
3607 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3609 *) Avoid coredump with unsupported or invalid public keys by checking if
3610 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3611 PKCS7_verify() fails with non detached data.
3614 *) Don't use getenv in library functions when run as setuid/setgid.
3615 New function OPENSSL_issetugid().
3618 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3619 due to incorrect handling of multi-threading:
3621 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3623 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3625 3. Count how many times MemCheck_off() has been called so that
3626 nested use can be treated correctly. This also avoids
3627 inband-signalling in the previous code (which relied on the
3628 assumption that thread ID 0 is impossible).
3631 *) Add "-rand" option also to s_client and s_server.
3634 *) Fix CPU detection on Irix 6.x.
3635 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3636 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3638 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3641 [This change does not apply to 0.9.7.]
3643 *) Use the cached encoding of an X509_NAME structure rather than
3644 copying it. This is apparently the reason for the libsafe "errors"
3645 but the code is actually correct.
3648 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3649 Bleichenbacher's DSA attack.
3650 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3651 to be set and top=0 forces the highest bit to be set; top=-1 is new
3652 and leaves the highest bit random.
3653 [Ulf Moeller, Bodo Moeller]
3655 *) In the NCONF_...-based implementations for CONF_... queries
3656 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3657 a temporary CONF structure with the data component set to NULL
3658 (which gives segmentation faults in lh_retrieve).
3659 Instead, use NULL for the CONF pointer in CONF_get_string and
3660 CONF_get_number (which may use environment variables) and directly
3661 return NULL from CONF_get_section.
3664 *) Fix potential buffer overrun for EBCDIC.
3667 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3668 keyUsage if basicConstraints absent for a CA.
3671 *) Make SMIME_write_PKCS7() write mail header values with a format that
3672 is more generally accepted (no spaces before the semicolon), since
3673 some programs can't parse those values properly otherwise. Also make
3674 sure BIO's that break lines after each write do not create invalid
3678 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3679 macros previously used would not encode an empty SEQUENCE OF
3680 and break the signature.
3682 [This change does not apply to 0.9.7.]
3684 *) Zero the premaster secret after deriving the master secret in
3688 *) Add some EVP_add_digest_alias registrations (as found in
3689 OpenSSL_add_all_digests()) to SSL_library_init()
3690 aka OpenSSL_add_ssl_algorithms(). This provides improved
3691 compatibility with peers using X.509 certificates
3692 with unconventional AlgorithmIdentifier OIDs.
3695 *) Fix for Irix with NO_ASM.
3696 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3698 *) ./config script fixes.
3699 [Ulf Moeller, Richard Levitte]
3701 *) Fix 'openssl passwd -1'.
3704 *) Change PKCS12_key_gen_asc() so it can cope with non null
3705 terminated strings whose length is passed in the passlen
3706 parameter, for example from PEM callbacks. This was done
3707 by adding an extra length parameter to asc2uni().
3708 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3710 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3711 call failed, free the DSA structure.
3714 *) Fix to uni2asc() to cope with zero length Unicode strings.
3715 These are present in some PKCS#12 files.
3718 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3719 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3720 when writing a 32767 byte record.
3721 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3723 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3724 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3726 (RSA objects have a reference count access to which is protected
3727 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3728 so they are meant to be shared between threads.)
3729 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3730 "Reddie, Steven" <Steven.Reddie@ca.com>]
3732 *) Fix a deadlock in CRYPTO_mem_leaks().
3735 *) Use better test patterns in bntest.
3738 *) rand_win.c fix for Borland C.
3741 *) BN_rshift bugfix for n == 0.
3744 *) Add a 'bctest' script that checks for some known 'bc' bugs
3745 so that 'make test' does not abort just because 'bc' is broken.
3748 *) Store verify_result within SSL_SESSION also for client side to
3749 avoid potential security hole. (Re-used sessions on the client side
3750 always resulted in verify_result==X509_V_OK, not using the original
3751 result of the server certificate verification.)
3754 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3755 SSL3_RT_APPLICATION_DATA, return 0.
3756 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3760 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3761 releases, have been re-implemented by renaming the previous
3762 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3763 and ssl3_read_internal, respectively, and adding 'peek' parameters
3764 to them. The new ssl[23]_{read,peek} functions are calls to
3765 ssl[23]_read_internal with the 'peek' flag set appropriately.
3766 A 'peek' parameter has also been added to ssl3_read_bytes, which
3767 does the actual work for ssl3_read_internal.
3770 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3771 the method-specific "init()" handler. Also clean up ex_data after
3772 calling the method-specific "finish()" handler. Previously, this was
3773 happening the other way round.
3776 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3777 The previous value, 12, was not always sufficient for BN_mod_exp().
3780 *) Make sure that shared libraries get the internal name engine with
3781 the full version number and not just 0. This should mark the
3782 shared libraries as not backward compatible. Of course, this should
3783 be changed again when we can guarantee backward binary compatibility.
3786 *) Fix typo in get_cert_by_subject() in by_dir.c
3787 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3789 *) Rework the system to generate shared libraries:
3791 - Make note of the expected extension for the shared libraries and
3792 if there is a need for symbolic links from for example libcrypto.so.0
3793 to libcrypto.so.0.9.7. There is extended info in Configure for
3796 - Make as few rebuilds of the shared libraries as possible.
3798 - Still avoid linking the OpenSSL programs with the shared libraries.
3800 - When installing, install the shared libraries separately from the
3804 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3806 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3807 and not in SSL_clear because the latter is also used by the
3808 accept/connect functions; previously, the settings made by
3809 SSL_set_read_ahead would be lost during the handshake.
3810 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3812 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3813 Previously, it would create entries for disableed algorithms no
3817 *) Added several new manual pages for SSL_* function.
3820 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3822 *) In ssl23_get_client_hello, generate an error message when faced
3823 with an initial SSL 3.0/TLS record that is too small to contain the
3824 first two bytes of the ClientHello message, i.e. client_version.
3825 (Note that this is a pathologic case that probably has never happened
3826 in real life.) The previous approach was to use the version number
3827 from the record header as a substitute; but our protocol choice
3828 should not depend on that one because it is not authenticated
3829 by the Finished messages.
3832 *) More robust randomness gathering functions for Windows.
3833 [Jeffrey Altman <jaltman@columbia.edu>]
3835 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3836 not set then we don't setup the error code for issuer check errors
3837 to avoid possibly overwriting other errors which the callback does
3838 handle. If an application does set the flag then we assume it knows
3839 what it is doing and can handle the new informational codes
3843 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3844 a general "ANY" type, as such it should be able to decode anything
3845 including tagged types. However it didn't check the class so it would
3846 wrongly interpret tagged types in the same way as their universal
3847 counterpart and unknown types were just rejected. Changed so that the
3848 tagged and unknown types are handled in the same way as a SEQUENCE:
3849 that is the encoding is stored intact. There is also a new type
3850 "V_ASN1_OTHER" which is used when the class is not universal, in this
3851 case we have no idea what the actual type is so we just lump them all
3855 *) On VMS, stdout may very well lead to a file that is written to
3856 in a record-oriented fashion. That means that every write() will
3857 write a separate record, which will be read separately by the
3858 programs trying to read from it. This can be very confusing.
3860 The solution is to put a BIO filter in the way that will buffer
3861 text until a linefeed is reached, and then write everything a
3862 line at a time, so every record written will be an actual line,
3863 not chunks of lines and not (usually doesn't happen, but I've
3864 seen it once) several lines in one record. BIO_f_linebuffer() is
3867 Currently, it's a VMS-only method, because that's where it has
3868 been tested well enough.
3871 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3872 it can return incorrect results.
3873 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3874 but it was in 0.9.6-beta[12].)
3877 *) Disable the check for content being present when verifying detached
3878 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3879 include zero length content when signing messages.
3882 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3883 BIO_ctrl (for BIO pairs).
3886 *) Add DSO method for VMS.
3889 *) Bug fix: Montgomery multiplication could produce results with the
3893 *) Add RPM specification openssl.spec and modify it to build three
3894 packages. The default package contains applications, application
3895 documentation and run-time libraries. The devel package contains
3896 include files, static libraries and function documentation. The
3897 doc package contains the contents of the doc directory. The original
3898 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3901 *) Add a large number of documentation files for many SSL routines.
3902 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3904 *) Add a configuration entry for Sony News 4.
3905 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3907 *) Don't set the two most significant bits to one when generating a
3908 random number < q in the DSA library.
3911 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3912 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3913 the underlying transport is blocking) if a handshake took place.
3914 (The default behaviour is needed by applications such as s_client
3915 and s_server that use select() to determine when to use SSL_read;
3916 but for applications that know in advance when to expect data, it
3917 just makes things more complicated.)
3920 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3924 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3925 work better on such systems.
3926 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3928 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3929 Update PKCS12_parse() so it copies the friendlyName and the
3930 keyid to the certificates aux info.
3933 *) Fix bug in PKCS7_verify() which caused an infinite loop
3934 if there was more than one signature.
3935 [Sven Uszpelkat <su@celocom.de>]
3937 *) Major change in util/mkdef.pl to include extra information
3938 about each symbol, as well as presentig variables as well
3939 as functions. This change means that there's n more need
3940 to rebuild the .num files when some algorithms are excluded.
3943 *) Allow the verify time to be set by an application,
3944 rather than always using the current time.
3947 *) Phase 2 verify code reorganisation. The certificate
3948 verify code now looks up an issuer certificate by a
3949 number of criteria: subject name, authority key id
3950 and key usage. It also verifies self signed certificates
3951 by the same criteria. The main comparison function is
3952 X509_check_issued() which performs these checks.
3954 Lot of changes were necessary in order to support this
3955 without completely rewriting the lookup code.
3957 Authority and subject key identifier are now cached.
3959 The LHASH 'certs' is X509_STORE has now been replaced
3960 by a STACK_OF(X509_OBJECT). This is mainly because an
3961 LHASH can't store or retrieve multiple objects with
3962 the same hash value.
3964 As a result various functions (which were all internal
3965 use only) have changed to handle the new X509_STORE
3966 structure. This will break anything that messed round
3967 with X509_STORE internally.
3969 The functions X509_STORE_add_cert() now checks for an
3970 exact match, rather than just subject name.
3972 The X509_STORE API doesn't directly support the retrieval
3973 of multiple certificates matching a given criteria, however
3974 this can be worked round by performing a lookup first
3975 (which will fill the cache with candidate certificates)
3976 and then examining the cache for matches. This is probably
3977 the best we can do without throwing out X509_LOOKUP
3978 entirely (maybe later...).
3980 The X509_VERIFY_CTX structure has been enhanced considerably.
3982 All certificate lookup operations now go via a get_issuer()
3983 callback. Although this currently uses an X509_STORE it
3984 can be replaced by custom lookups. This is a simple way
3985 to bypass the X509_STORE hackery necessary to make this
3986 work and makes it possible to use more efficient techniques
3987 in future. A very simple version which uses a simple
3988 STACK for its trusted certificate store is also provided
3989 using X509_STORE_CTX_trusted_stack().
3991 The verify_cb() and verify() callbacks now have equivalents
3992 in the X509_STORE_CTX structure.
3994 X509_STORE_CTX also has a 'flags' field which can be used
3995 to customise the verify behaviour.
3998 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3999 excludes S/MIME capabilities.
4002 *) When a certificate request is read in keep a copy of the
4003 original encoding of the signed data and use it when outputing
4004 again. Signatures then use the original encoding rather than
4005 a decoded, encoded version which may cause problems if the
4006 request is improperly encoded.
4009 *) For consistency with other BIO_puts implementations, call
4010 buffer_write(b, ...) directly in buffer_puts instead of calling
4013 In BIO_puts, increment b->num_write as in BIO_write.
4014 [Peter.Sylvester@EdelWeb.fr]
4016 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4017 BN_zero, we may not return a BIGNUM with an array consisting of
4021 *) Avoid calling abort() from within the library when problems are
4022 detected, except if preprocessor symbols have been defined
4023 (such as REF_CHECK, BN_DEBUG etc.).
4026 *) New openssl application 'rsautl'. This utility can be
4027 used for low level RSA operations. DER public key
4028 BIO/fp routines also added.
4031 *) New Configure entry and patches for compiling on QNX 4.
4032 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4034 *) A demo state-machine implementation was sponsored by
4035 Nuron (http://www.nuron.com/) and is now available in
4036 demos/state_machine.
4039 *) New options added to the 'dgst' utility for signature
4040 generation and verification.
4043 *) Unrecognized PKCS#7 content types are now handled via a
4044 catch all ASN1_TYPE structure. This allows unsupported
4045 types to be stored as a "blob" and an application can
4046 encode and decode it manually.
4049 *) Fix various signed/unsigned issues to make a_strex.c
4051 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4053 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4054 length if passed a buffer. ASN1_INTEGER_to_BN failed
4055 if passed a NULL BN and its argument was negative.
4056 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4058 *) Modification to PKCS#7 encoding routines to output definite
4059 length encoding. Since currently the whole structures are in
4060 memory there's not real point in using indefinite length
4061 constructed encoding. However if OpenSSL is compiled with
4062 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4065 *) Added BIO_vprintf() and BIO_vsnprintf().
4068 *) Added more prefixes to parse for in the the strings written
4069 through a logging bio, to cover all the levels that are available
4070 through syslog. The prefixes are now:
4072 PANIC, EMERG, EMR => LOG_EMERG
4073 ALERT, ALR => LOG_ALERT
4074 CRIT, CRI => LOG_CRIT
4075 ERROR, ERR => LOG_ERR
4076 WARNING, WARN, WAR => LOG_WARNING
4077 NOTICE, NOTE, NOT => LOG_NOTICE
4078 INFO, INF => LOG_INFO
4079 DEBUG, DBG => LOG_DEBUG
4081 and as before, if none of those prefixes are present at the
4082 beginning of the string, LOG_ERR is chosen.
4084 On Win32, the LOG_* levels are mapped according to this:
4086 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4087 LOG_WARNING => EVENTLOG_WARNING_TYPE
4088 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4092 *) Made it possible to reconfigure with just the configuration
4093 argument "reconf" or "reconfigure". The command line arguments
4094 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4095 and are retrieved from there when reconfiguring.
4099 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4101 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4104 *) The obj_dat.pl script was messing up the sorting of object
4105 names. The reason was that it compared the quoted version
4106 of strings as a result "OCSP" > "OCSP Signing" because
4107 " > SPACE. Changed script to store unquoted versions of
4108 names and add quotes on output. It was also omitting some
4109 names from the lookup table if they were given a default
4110 value (that is if SN is missing it is given the same
4111 value as LN and vice versa), these are now added on the
4112 grounds that if an object has a name we should be able to
4113 look it up. Finally added warning output when duplicate
4114 short or long names are found.
4117 *) Changes needed for Tandem NSK.
4118 [Scott Uroff <scott@xypro.com>]
4120 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4121 RSA_padding_check_SSLv23(), special padding was never detected
4122 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4123 version rollback attacks was not effective.
4125 In s23_clnt.c, don't use special rollback-attack detection padding
4126 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4127 client; similarly, in s23_srvr.c, don't do the rollback check if
4128 SSL 2.0 is the only protocol enabled in the server.
4131 *) Make it possible to get hexdumps of unprintable data with 'openssl
4132 asn1parse'. By implication, the functions ASN1_parse_dump() and
4133 BIO_dump_indent() are added.
4136 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4137 these print out strings and name structures based on various
4138 flags including RFC2253 support and proper handling of
4139 multibyte characters. Added options to the 'x509' utility
4140 to allow the various flags to be set.
4143 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4144 Also change the functions X509_cmp_current_time() and
4145 X509_gmtime_adj() work with an ASN1_TIME structure,
4146 this will enable certificates using GeneralizedTime in validity
4147 dates to be checked.
4150 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4151 negative public key encodings) on by default,
4152 NO_NEG_PUBKEY_BUG can be set to disable it.
4155 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4156 content octets. An i2c_ASN1_OBJECT is unnecessary because
4157 the encoding can be trivially obtained from the structure.
4160 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4161 not read locks (CRYPTO_r_[un]lock).
4164 *) A first attempt at creating official support for shared
4165 libraries through configuration. I've kept it so the
4166 default is static libraries only, and the OpenSSL programs
4167 are always statically linked for now, but there are
4168 preparations for dynamic linking in place.
4169 This has been tested on Linux and Tru64.
4172 *) Randomness polling function for Win9x, as described in:
4173 Peter Gutmann, Software Generation of Practically Strong
4177 *) Fix so PRNG is seeded in req if using an already existing
4181 *) New options to smime application. -inform and -outform
4182 allow alternative formats for the S/MIME message including
4183 PEM and DER. The -content option allows the content to be
4184 specified separately. This should allow things like Netscape
4185 form signing output easier to verify.
4188 *) Fix the ASN1 encoding of tags using the 'long form'.
4191 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4192 STRING types. These convert content octets to and from the
4193 underlying type. The actual tag and length octets are
4194 already assumed to have been read in and checked. These
4195 are needed because all other string types have virtually
4196 identical handling apart from the tag. By having versions
4197 of the ASN1 functions that just operate on content octets
4198 IMPLICIT tagging can be handled properly. It also allows
4199 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4200 and ASN1_INTEGER are identical apart from the tag.
4203 *) Change the handling of OID objects as follows:
4205 - New object identifiers are inserted in objects.txt, following
4206 the syntax given in objects.README.
4207 - objects.pl is used to process obj_mac.num and create a new
4209 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4212 This is currently kind of a hack, and the perl code in objects.pl
4213 isn't very elegant, but it works as I intended. The simplest way
4214 to check that it worked correctly is to look in obj_dat.h and
4215 check the array nid_objs and make sure the objects haven't moved
4216 around (this is important!). Additions are OK, as well as
4217 consistent name changes.
4220 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4223 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4224 The given file adds to whatever has already been seeded into the
4225 random pool through the RANDFILE configuration file option or
4226 environment variable, or the default random state file.
4229 *) mkstack.pl now sorts each macro group into lexical order.
4230 Previously the output order depended on the order the files
4231 appeared in the directory, resulting in needless rewriting
4235 *) Patches to make OpenSSL compile under Win32 again. Mostly
4236 work arounds for the VC++ problem that it treats func() as
4237 func(void). Also stripped out the parts of mkdef.pl that
4238 added extra typesafe functions: these no longer exist.
4241 *) Reorganisation of the stack code. The macros are now all
4242 collected in safestack.h . Each macro is defined in terms of
4243 a "stack macro" of the form SKM_<name>(type, a, b). The
4244 DEBUG_SAFESTACK is now handled in terms of function casts,
4245 this has the advantage of retaining type safety without the
4246 use of additional functions. If DEBUG_SAFESTACK is not defined
4247 then the non typesafe macros are used instead. Also modified the
4248 mkstack.pl script to handle the new form. Needs testing to see
4249 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4250 the default if no major problems. Similar behaviour for ASN1_SET_OF
4251 and PKCS12_STACK_OF.
4254 *) When some versions of IIS use the 'NET' form of private key the
4255 key derivation algorithm is different. Normally MD5(password) is
4256 used as a 128 bit RC4 key. In the modified case
4257 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4258 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4259 as the old Netscape_RSA functions except they have an additional
4260 'sgckey' parameter which uses the modified algorithm. Also added
4261 an -sgckey command line option to the rsa utility. Thanks to
4262 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4263 algorithm to openssl-dev.
4266 *) The evp_local.h macros were using 'c.##kname' which resulted in
4267 invalid expansion on some systems (SCO 5.0.5 for example).
4268 Corrected to 'c.kname'.
4269 [Phillip Porch <root@theporch.com>]
4271 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4272 a STACK of email addresses from a certificate or request, these look
4273 in the subject name and the subject alternative name extensions and
4274 omit any duplicate addresses.
4277 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4278 This makes DSA verification about 2 % faster.
4281 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4282 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4283 plus overhead for 1024 bit moduli).
4284 This makes exponentiations about 0.5 % faster for 1024 bit
4285 exponents (as measured by "openssl speed rsa2048").
4288 *) Rename memory handling macros to avoid conflicts with other
4290 Malloc => OPENSSL_malloc
4291 Malloc_locked => OPENSSL_malloc_locked
4292 Realloc => OPENSSL_realloc
4293 Free => OPENSSL_free
4296 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4297 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4300 *) CygWin32 support.
4301 [John Jarvie <jjarvie@newsguy.com>]
4303 *) The type-safe stack code has been rejigged. It is now only compiled
4304 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4305 by default all type-specific stack functions are "#define"d back to
4306 standard stack functions. This results in more streamlined output
4307 but retains the type-safety checking possibilities of the original
4311 *) The STACK code has been cleaned up, and certain type declarations
4312 that didn't make a lot of sense have been brought in line. This has
4313 also involved a cleanup of sorts in safestack.h to more correctly
4314 map type-safe stack functions onto their plain stack counterparts.
4315 This work has also resulted in a variety of "const"ifications of
4316 lots of the code, especially "_cmp" operations which should normally
4317 be prototyped with "const" parameters anyway.
4320 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4321 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4322 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4323 where all of 'md' is used each time the PRNG is used, but 'state'
4324 is used only indexed by a cyclic counter. As entropy may not be
4325 well distributed from the beginning, 'md' is important as a
4326 chaining variable. However, the output function chains only half
4327 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4328 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4329 in all of 'state' being rewritten, with the new values depending
4330 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4333 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4334 the handshake is continued after ssl_verify_cert_chain();
4335 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4336 can lead to 'unexplainable' connection aborts later.
4337 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4339 *) Major EVP API cipher revision.
4340 Add hooks for extra EVP features. This allows various cipher
4341 parameters to be set in the EVP interface. Support added for variable
4342 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4343 setting of RC2 and RC5 parameters.
4345 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4348 Remove lots of duplicated code from the EVP library. For example *every*
4349 cipher init() function handles the 'iv' in the same way according to the
4350 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4351 for CFB and OFB modes they zero ctx->num.
4353 New functionality allows removal of S/MIME code RC2 hack.
4355 Most of the routines have the same form and so can be declared in terms
4358 By shifting this to the top level EVP_CipherInit() it can be removed from
4359 all individual ciphers. If the cipher wants to handle IVs or keys
4360 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4363 Change lots of functions like EVP_EncryptUpdate() to now return a
4364 value: although software versions of the algorithms cannot fail
4365 any installed hardware versions can.
4368 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4369 this option is set, tolerate broken clients that send the negotiated
4370 protocol version number instead of the requested protocol version
4374 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4375 i.e. non-zero for export ciphersuites, zero otherwise.
4376 Previous versions had this flag inverted, inconsistent with
4377 rsa_tmp_cb (..._TMP_RSA_CB).
4378 [Bodo Moeller; problem reported by Amit Chopra]
4380 *) Add missing DSA library text string. Work around for some IIS
4381 key files with invalid SEQUENCE encoding.
4384 *) Add a document (doc/standards.txt) that list all kinds of standards
4385 and so on that are implemented in OpenSSL.
4388 *) Enhance c_rehash script. Old version would mishandle certificates
4389 with the same subject name hash and wouldn't handle CRLs at all.
4390 Added -fingerprint option to crl utility, to support new c_rehash
4394 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4397 *) Fix for SSL server purpose checking. Server checking was
4398 rejecting certificates which had extended key usage present
4399 but no ssl client purpose.
4400 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4402 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4403 is a little unclear about how a blank password is handled.
4404 Since the password in encoded as a BMPString with terminating
4405 double NULL a zero length password would end up as just the
4406 double NULL. However no password at all is different and is
4407 handled differently in the PKCS#12 key generation code. NS
4408 treats a blank password as zero length. MSIE treats it as no
4409 password on export: but it will try both on import. We now do
4410 the same: PKCS12_parse() tries zero length and no password if
4411 the password is set to "" or NULL (NULL is now a valid password:
4412 it wasn't before) as does the pkcs12 application.
4415 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4416 perror when PEM_read_bio_X509_REQ fails, the error message must
4417 be obtained from the error queue.
4420 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4421 it in ERR_remove_state if appropriate, and change ERR_get_state
4422 accordingly to avoid race conditions (this is necessary because
4423 thread_hash is no longer constant once set).
4426 *) Bugfix for linux-elf makefile.one.
4429 *) RSA_get_default_method() will now cause a default
4430 RSA_METHOD to be chosen if one doesn't exist already.
4431 Previously this was only set during a call to RSA_new()
4432 or RSA_new_method(NULL) meaning it was possible for
4433 RSA_get_default_method() to return NULL.
4436 *) Added native name translation to the existing DSO code
4437 that will convert (if the flag to do so is set) filenames
4438 that are sufficiently small and have no path information
4439 into a canonical native form. Eg. "blah" converted to
4440 "libblah.so" or "blah.dll" etc.
4443 *) New function ERR_error_string_n(e, buf, len) which is like
4444 ERR_error_string(e, buf), but writes at most 'len' bytes
4445 including the 0 terminator. For ERR_error_string_n, 'buf'
4447 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4449 *) CONF library reworked to become more general. A new CONF
4450 configuration file reader "class" is implemented as well as a
4451 new functions (NCONF_*, for "New CONF") to handle it. The now
4452 old CONF_* functions are still there, but are reimplemented to
4453 work in terms of the new functions. Also, a set of functions
4454 to handle the internal storage of the configuration data is
4455 provided to make it easier to write new configuration file
4456 reader "classes" (I can definitely see something reading a
4457 configuration file in XML format, for example), called _CONF_*,
4458 or "the configuration storage API"...
4460 The new configuration file reading functions are:
4462 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4463 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4465 NCONF_default, NCONF_WIN32
4467 NCONF_dump_fp, NCONF_dump_bio
4469 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4470 NCONF_new creates a new CONF object. This works in the same way
4471 as other interfaces in OpenSSL, like the BIO interface.
4472 NCONF_dump_* dump the internal storage of the configuration file,
4473 which is useful for debugging. All other functions take the same
4474 arguments as the old CONF_* functions wth the exception of the
4475 first that must be a `CONF *' instead of a `LHASH *'.
4477 To make it easer to use the new classes with the old CONF_* functions,
4478 the function CONF_set_default_method is provided.
4481 *) Add '-tls1' option to 'openssl ciphers', which was already
4482 mentioned in the documentation but had not been implemented.
4483 (This option is not yet really useful because even the additional
4484 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4487 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4488 OpenSSL-based applications) load shared libraries and bind to
4489 them in a portable way.
4490 [Geoff Thorpe, with contributions from Richard Levitte]
4492 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4494 *) Make sure _lrotl and _lrotr are only used with MSVC.
4496 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4497 (the default implementation of RAND_status).
4499 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4500 to '-clrext' (= clear extensions), as intended and documented.
4501 [Bodo Moeller; inconsistency pointed out by Michael Attili
4504 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4505 was larger than the MD block size.
4506 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4508 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4509 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4510 using the passed key: if the passed key was a private key the result
4511 of X509_print(), for example, would be to print out all the private key
4515 *) des_quad_cksum() byte order bug fix.
4516 [Ulf Möller, using the problem description in krb4-0.9.7, where
4517 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4519 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4521 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4523 *) For easily testing in shell scripts whether some command
4524 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4525 returns with exit code 0 iff no command of the given name is available.
4526 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4527 the output goes to stdout and nothing is printed to stderr.
4528 Additional arguments are always ignored.
4530 Since for each cipher there is a command of the same name,
4531 the 'no-cipher' compilation switches can be tested this way.
4533 ('openssl no-XXX' is not able to detect pseudo-commands such
4534 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4537 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4540 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4541 is set; it will be thrown away anyway because each handshake creates
4543 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4544 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4545 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4546 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4549 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4550 'Q' and 'R' lose their special meanings (quit/renegotiate).
4551 This is part of what -quiet does; unlike -quiet, -ign_eof
4552 does not suppress any output.
4555 *) Add compatibility options to the purpose and trust code. The
4556 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4557 accepts a certificate or CA, this was the previous behaviour,
4558 with all the associated security issues.
4560 X509_TRUST_COMPAT is the old trust behaviour: only and
4561 automatically trust self signed roots in certificate store. A
4562 new trust setting X509_TRUST_DEFAULT is used to specify that
4563 a purpose has no associated trust setting and it should instead
4564 use the value in the default purpose.
4567 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4568 and fix a memory leak.
4571 *) In util/mkerr.pl (which implements 'make errors'), preserve
4572 reason strings from the previous version of the .c file, as
4573 the default to have only downcase letters (and digits) in
4574 automatically generated reasons codes is not always appropriate.
4577 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4578 using strerror. Previously, ERR_reason_error_string() returned
4579 library names as reason strings for SYSerr; but SYSerr is a special
4580 case where small numbers are errno values, not library numbers.
4583 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4584 converts DSA parameters into DH parameters. (When creating parameters,
4585 DSA_generate_parameters is used.)
4588 *) Include 'length' (recommended exponent length) in C code generated
4589 by 'openssl dhparam -C'.
4592 *) The second argument to set_label in perlasm was already being used
4593 so couldn't be used as a "file scope" flag. Moved to third argument
4597 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4598 instead of RAND_bytes for encryption IVs and salts.
4601 *) Include RAND_status() into RAND_METHOD instead of implementing
4602 it only for md_rand.c Otherwise replacing the PRNG by calling
4603 RAND_set_rand_method would be impossible.
4606 *) Don't let DSA_generate_key() enter an infinite loop if the random
4607 number generation fails.
4610 *) New 'rand' application for creating pseudo-random output.
4613 *) Added configuration support for Linux/IA64
4614 [Rolf Haberrecker <rolf@suse.de>]
4616 *) Assembler module support for Mingw32.
4619 *) Shared library support for HPUX (in shlib/).
4620 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4622 *) Shared library support for Solaris gcc.
4623 [Lutz Behnke <behnke@trustcenter.de>]
4625 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4627 *) PKCS7_encrypt() was adding text MIME headers twice because they
4628 were added manually and by SMIME_crlf_copy().
4631 *) In bntest.c don't call BN_rand with zero bits argument.
4632 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4634 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4635 case was implemented. This caused BN_div_recp() to fail occasionally.
4638 *) Add an optional second argument to the set_label() in the perl
4639 assembly language builder. If this argument exists and is set
4640 to 1 it signals that the assembler should use a symbol whose
4641 scope is the entire file, not just the current function. This
4642 is needed with MASM which uses the format label:: for this scope.
4643 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4645 *) Change the ASN1 types so they are typedefs by default. Before
4646 almost all types were #define'd to ASN1_STRING which was causing
4647 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4651 *) Change names of new functions to the new get1/get0 naming
4652 convention: After 'get1', the caller owns a reference count
4653 and has to call ..._free; 'get0' returns a pointer to some
4654 data structure without incrementing reference counters.
4655 (Some of the existing 'get' functions increment a reference
4656 counter, some don't.)
4657 Similarly, 'set1' and 'add1' functions increase reference
4658 counters or duplicate objects.
4661 *) Allow for the possibility of temp RSA key generation failure:
4662 the code used to assume it always worked and crashed on failure.
4665 *) Fix potential buffer overrun problem in BIO_printf().
4666 [Ulf Möller, using public domain code by Patrick Powell; problem
4667 pointed out by David Sacerdote <das33@cornell.edu>]
4669 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4670 RAND_egd() and RAND_status(). In the command line application,
4671 the EGD socket can be specified like a seed file using RANDFILE
4675 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4676 Some CAs (e.g. Verisign) distribute certificates in this form.
4679 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4680 list to exclude them. This means that no special compilation option
4681 is needed to use anonymous DH: it just needs to be included in the
4685 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4686 EVP_MD_type. The old functionality is available in a new macro called
4687 EVP_MD_md(). Change code that uses it and update docs.
4690 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4691 where the 'void *' argument is replaced by a function pointer argument.
4692 Previously 'void *' was abused to point to functions, which works on
4693 many platforms, but is not correct. As these functions are usually
4694 called by macros defined in OpenSSL header files, most source code
4695 should work without changes.
4698 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4699 sections with information on -D... compiler switches used for
4700 compiling the library so that applications can see them. To enable
4701 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4702 must be defined. E.g.,
4703 #define OPENSSL_ALGORITHM_DEFINES
4704 #include <openssl/opensslconf.h>
4705 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4706 [Richard Levitte, Ulf and Bodo Möller]
4708 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4712 *) Change the 'other' type in certificate aux info to a STACK_OF
4713 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4714 the required ASN1 format: arbitrary types determined by an OID.
4717 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4718 argument to 'req'. This is not because the function is newer or
4719 better than others it just uses the work 'NEW' in the certificate
4720 request header lines. Some software needs this.
4723 *) Reorganise password command line arguments: now passwords can be
4724 obtained from various sources. Delete the PEM_cb function and make
4725 it the default behaviour: i.e. if the callback is NULL and the
4726 usrdata argument is not NULL interpret it as a null terminated pass
4727 phrase. If usrdata and the callback are NULL then the pass phrase
4728 is prompted for as usual.
4731 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4732 the support is automatically enabled. The resulting binaries will
4733 autodetect the card and use it if present.
4734 [Ben Laurie and Compaq Inc.]
4736 *) Work around for Netscape hang bug. This sends certificate request
4737 and server done in one record. Since this is perfectly legal in the
4738 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4739 the bugs/SSLv3 entry for more info.
4742 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4745 *) Add -rand argument to smime and pkcs12 applications and read/write
4749 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4752 *) Add command line password options to the remaining applications.
4755 *) Bug fix for BN_div_recp() for numerators with an even number of
4759 *) More tests in bntest.c, and changed test_bn output.
4762 *) ./config recognizes MacOS X now.
4765 *) Bug fix for BN_div() when the first words of num and divsor are
4766 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4769 *) Add support for various broken PKCS#8 formats, and command line
4770 options to produce them.
4773 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4774 get temporary BIGNUMs from a BN_CTX.
4777 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4781 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4782 include a #define from the old name to the new. The original intent
4783 was that statically linked binaries could for example just call
4784 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4785 link with digests. This never worked becayse SSLeay_add_all_digests()
4786 and SSLeay_add_all_ciphers() were in the same source file so calling
4787 one would link with the other. They are now in separate source files.
4790 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4793 *) Use a less unusual form of the Miller-Rabin primality test (it used
4794 a binary algorithm for exponentiation integrated into the Miller-Rabin
4795 loop, our standard modexp algorithms are faster).
4798 *) Support for the EBCDIC character set completed.
4799 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4801 *) Source code cleanups: use const where appropriate, eliminate casts,
4802 use void * instead of char * in lhash.
4805 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4806 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4807 this the server could overwrite ephemeral keys that the client
4811 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4812 using 50 iterations of the Rabin-Miller test.
4814 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4815 iterations of the Rabin-Miller test as required by the appendix
4816 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4817 As BN_is_prime_fasttest includes trial division, DSA parameter
4818 generation becomes much faster.
4820 This implies a change for the callback functions in DSA_is_prime
4821 and DSA_generate_parameters: The callback function is called once
4822 for each positive witness in the Rabin-Miller test, not just
4823 occasionally in the inner loop; and the parameters to the
4824 callback function now provide an iteration count for the outer
4825 loop rather than for the current invocation of the inner loop.
4826 DSA_generate_parameters additionally can call the callback
4827 function with an 'iteration count' of -1, meaning that a
4828 candidate has passed the trial division test (when q is generated
4829 from an application-provided seed, trial division is skipped).
4832 *) New function BN_is_prime_fasttest that optionally does trial
4833 division before starting the Rabin-Miller test and has
4834 an additional BN_CTX * argument (whereas BN_is_prime always
4835 has to allocate at least one BN_CTX).
4836 'callback(1, -1, cb_arg)' is called when a number has passed the
4837 trial division stage.
4840 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4844 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4847 *) New function BN_pseudo_rand().
4850 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4851 bignum version of BN_from_montgomery() with the working code from
4852 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4856 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4857 made it impossible to use the same SSL_SESSION data structure in
4858 SSL2 clients in multiple threads.
4861 *) The return value of RAND_load_file() no longer counts bytes obtained
4862 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4863 to seed the PRNG (previously an explicit byte count was required).
4864 [Ulf Möller, Bodo Möller]
4866 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4867 used (char *) instead of (void *) and had casts all over the place.
4870 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4873 *) Retain source code compatibility for BN_prime_checks macro:
4874 BN_is_prime(..., BN_prime_checks, ...) now uses
4875 BN_prime_checks_for_size to determine the appropriate number of
4876 Rabin-Miller iterations.
4879 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4880 DH_CHECK_P_NOT_SAFE_PRIME.
4881 (Check if this is true? OpenPGP calls them "strong".)
4884 *) Merge the functionality of "dh" and "gendh" programs into a new program
4885 "dhparam". The old programs are retained for now but will handle DH keys
4886 (instead of parameters) in future.
4889 *) Make the ciphers, s_server and s_client programs check the return values
4890 when a new cipher list is set.
4893 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4894 ciphers. Before when the 56bit ciphers were enabled the sorting was
4897 The syntax for the cipher sorting has been extended to support sorting by
4898 cipher-strength (using the strength_bits hard coded in the tables).
4899 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4901 Fix a bug in the cipher-command parser: when supplying a cipher command
4902 string with an "undefined" symbol (neither command nor alphanumeric
4903 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4904 an error is flagged.
4906 Due to the strength-sorting extension, the code of the
4907 ssl_create_cipher_list() function was completely rearranged. I hope that
4908 the readability was also increased :-)
4909 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4911 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4912 for the first serial number and places 2 in the serial number file. This
4913 avoids problems when the root CA is created with serial number zero and
4914 the first user certificate has the same issuer name and serial number
4918 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4919 the new code. Add documentation for this stuff.
4922 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4923 X509_*() to X509at_*() on the grounds that they don't handle X509
4924 structures and behave in an analagous way to the X509v3 functions:
4925 they shouldn't be called directly but wrapper functions should be used
4928 So we also now have some wrapper functions that call the X509at functions
4929 when passed certificate requests. (TO DO: similar things can be done with
4930 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4931 things. Some of these need some d2i or i2d and print functionality
4932 because they handle more complex structures.)
4935 *) Add missing #ifndefs that caused missing symbols when building libssl
4936 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4937 NO_RSA in ssl/s2*.c.
4938 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4940 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4941 has a return value which indicates the quality of the random data
4942 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4943 error queue. New function RAND_pseudo_bytes() generates output that is
4944 guaranteed to be unique but not unpredictable. RAND_add is like
4945 RAND_seed, but takes an extra argument for an entropy estimate
4946 (RAND_seed always assumes full entropy).
4949 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4950 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4951 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4952 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4953 false-positive rate of at most 2^-80 for random input.
4956 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4959 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4960 in the 0.9.5 release), this returns the chain
4961 from an X509_CTX structure with a dup of the stack and all
4962 the X509 reference counts upped: so the stack will exist
4963 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4966 Also make SSL_SESSION_print() print out the verify return
4970 *) Add manpage for the pkcs12 command. Also change the default
4971 behaviour so MAC iteration counts are used unless the new
4972 -nomaciter option is used. This improves file security and
4973 only older versions of MSIE (4.0 for example) need it.
4976 *) Honor the no-xxx Configure options when creating .DEF files.
4979 *) Add PKCS#10 attributes to field table: challengePassword,
4980 unstructuredName and unstructuredAddress. These are taken from
4981 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4982 international characters are used.
4984 More changes to X509_ATTRIBUTE code: allow the setting of types
4985 based on strings. Remove the 'loc' parameter when adding
4986 attributes because these will be a SET OF encoding which is sorted
4990 *) Initial changes to the 'req' utility to allow request generation
4991 automation. This will allow an application to just generate a template
4992 file containing all the field values and have req construct the
4995 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4996 used all over the place including certificate requests and PKCS#7
4997 structures. They are currently handled manually where necessary with
4998 some primitive wrappers for PKCS#7. The new functions behave in a
4999 manner analogous to the X509 extension functions: they allow
5000 attributes to be looked up by NID and added.
5002 Later something similar to the X509V3 code would be desirable to
5003 automatically handle the encoding, decoding and printing of the
5004 more complex types. The string types like challengePassword can
5005 be handled by the string table functions.
5007 Also modified the multi byte string table handling. Now there is
5008 a 'global mask' which masks out certain types. The table itself
5009 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5010 is useful when for example there is only one permissible type
5011 (as in countryName) and using the mask might result in no valid
5015 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5016 SSL_get_peer_finished to allow applications to obtain the latest
5017 Finished messages sent to the peer or expected from the peer,
5018 respectively. (SSL_get_peer_finished is usually the Finished message
5019 actually received from the peer, otherwise the protocol will be aborted.)
5021 As the Finished message are message digests of the complete handshake
5022 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5023 be used for external authentication procedures when the authentication
5024 provided by SSL/TLS is not desired or is not enough.
5027 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5028 the host supports BWX extension and if Compaq C is present on the
5029 $PATH. Just exploiting of the BWX extension results in 20-30%
5030 performance kick for some algorithms, e.g. DES and RC4 to mention
5031 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5035 *) Add support for MS "fast SGC". This is arguably a violation of the
5036 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5037 weak crypto and after checking the certificate is SGC a second one
5038 with strong crypto. MS SGC stops the first handshake after receiving
5039 the server certificate message and sends a second client hello. Since
5040 a server will typically do all the time consuming operations before
5041 expecting any further messages from the client (server key exchange
5042 is the most expensive) there is little difference between the two.
5044 To get OpenSSL to support MS SGC we have to permit a second client
5045 hello message after we have sent server done. In addition we have to
5046 reset the MAC if we do get this second client hello.
5049 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5050 if a DER encoded private key is RSA or DSA traditional format. Changed
5051 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5052 format DER encoded private key. Newer code should use PKCS#8 format which
5053 has the key type encoded in the ASN1 structure. Added DER private key
5054 support to pkcs8 application.
5057 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5058 ciphersuites has been selected (as required by the SSL 3/TLS 1
5059 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5060 is set, we interpret this as a request to violate the specification
5061 (the worst that can happen is a handshake failure, and 'correct'
5062 behaviour would result in a handshake failure anyway).
5065 *) In SSL_CTX_add_session, take into account that there might be multiple
5066 SSL_SESSION structures with the same session ID (e.g. when two threads
5067 concurrently obtain them from an external cache).
5068 The internal cache can handle only one SSL_SESSION with a given ID,
5069 so if there's a conflict, we now throw out the old one to achieve
5073 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5074 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5075 some routines that use cipher OIDs: some ciphers do not have OIDs
5076 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5080 *) Simplify the trust setting structure and code. Now we just have
5081 two sequences of OIDs for trusted and rejected settings. These will
5082 typically have values the same as the extended key usage extension
5083 and any application specific purposes.
5085 The trust checking code now has a default behaviour: it will just
5086 check for an object with the same NID as the passed id. Functions can
5087 be provided to override either the default behaviour or the behaviour
5088 for a given id. SSL client, server and email already have functions
5089 in place for compatibility: they check the NID and also return "trusted"
5090 if the certificate is self signed.
5093 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5094 traditional format into an EVP_PKEY structure.
5097 *) Add a password callback function PEM_cb() which either prompts for
5098 a password if usr_data is NULL or otherwise assumes it is a null
5099 terminated password. Allow passwords to be passed on command line
5100 environment or config files in a few more utilities.
5103 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5104 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5105 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5106 Update documentation.
5109 *) Support for ASN1 "NULL" type. This could be handled before by using
5110 ASN1_TYPE but there wasn't any function that would try to read a NULL
5111 and produce an error if it couldn't. For compatibility we also have
5112 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5113 don't allocate anything because they don't need to.
5116 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5118 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5120 *) Rebuild of the memory allocation routines used by OpenSSL code and
5121 possibly others as well. The purpose is to make an interface that
5122 provide hooks so anyone can build a separate set of allocation and
5123 deallocation routines to be used by OpenSSL, for example memory
5124 pool implementations, or something else, which was previously hard
5125 since Malloc(), Realloc() and Free() were defined as macros having
5126 the values malloc, realloc and free, respectively (except for Win32
5127 compilations). The same is provided for memory debugging code.
5128 OpenSSL already comes with functionality to find memory leaks, but
5129 this gives people a chance to debug other memory problems.
5131 With these changes, a new set of functions and macros have appeared:
5133 CRYPTO_set_mem_debug_functions() [F]
5134 CRYPTO_get_mem_debug_functions() [F]
5135 CRYPTO_dbg_set_options() [F]
5136 CRYPTO_dbg_get_options() [F]
5137 CRYPTO_malloc_debug_init() [M]
5139 The memory debug functions are NULL by default, unless the library
5140 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5141 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5142 gives the standard debugging functions that come with OpenSSL) or
5143 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5144 provided by the library user) must be used. When the standard
5145 debugging functions are used, CRYPTO_dbg_set_options can be used to
5146 request additional information:
5147 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5148 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5150 Also, things like CRYPTO_set_mem_functions will always give the
5151 expected result (the new set of functions is used for allocation
5152 and deallocation) at all times, regardless of platform and compiler
5155 To finish it up, some functions that were never use in any other
5156 way than through macros have a new API and new semantic:
5159 CRYPTO_dbg_realloc()
5162 All macros of value have retained their old syntax.
5163 [Richard Levitte and Bodo Moeller]
5165 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5166 ordering of SMIMECapabilities wasn't in "strength order" and there
5167 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5171 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5172 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5173 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5175 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5176 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5177 functionality to handle multipart/signed properly) and a utility
5178 called 'smime' to call all this stuff. This is based on code I
5179 originally wrote for Celo who have kindly allowed it to be
5180 included in OpenSSL.
5183 *) Add variants des_set_key_checked and des_set_key_unchecked of
5184 des_set_key (aka des_key_sched). Global variable des_check_key
5185 decides which of these is called by des_set_key; this way
5186 des_check_key behaves as it always did, but applications and
5187 the library itself, which was buggy for des_check_key == 1,
5188 have a cleaner way to pick the version they need.
5191 *) New function PKCS12_newpass() which changes the password of a
5195 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5196 dynamic mix. In both cases the ids can be used as an index into the
5197 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5198 functions so they accept a list of the field values and the
5199 application doesn't need to directly manipulate the X509_TRUST
5203 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5207 *) Modify the way the V3 extension code looks up extensions. This now
5208 works in a similar way to the object code: we have some "standard"
5209 extensions in a static table which is searched with OBJ_bsearch()
5210 and the application can add dynamic ones if needed. The file
5211 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5212 updated whenever a new extension is added to the core code and kept
5213 in ext_nid order. There is a simple program 'tabtest.c' which checks
5214 this. New extensions are not added too often so this file can readily
5215 be maintained manually.
5217 There are two big advantages in doing things this way. The extensions
5218 can be looked up immediately and no longer need to be "added" using
5219 X509V3_add_standard_extensions(): this function now does nothing.
5220 [Side note: I get *lots* of email saying the extension code doesn't
5221 work because people forget to call this function]
5222 Also no dynamic allocation is done unless new extensions are added:
5223 so if we don't add custom extensions there is no need to call
5224 X509V3_EXT_cleanup().
5227 *) Modify enc utility's salting as follows: make salting the default. Add a
5228 magic header, so unsalted files fail gracefully instead of just decrypting
5229 to garbage. This is because not salting is a big security hole, so people
5230 should be discouraged from doing it.
5233 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5234 digest to be passed on the command line but it only used this
5235 parameter when signing a certificate. Modified so all relevant
5236 operations are affected by the digest parameter including the
5237 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5238 DSA key was used because it didn't fix the digest.
5241 *) Initial certificate chain verify code. Currently tests the untrusted
5242 certificates for consistency with the verify purpose (which is set
5243 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5245 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5246 this is because it will reject chains with invalid extensions whereas
5247 every previous version of OpenSSL and SSLeay made no checks at all.
5249 Trust code: checks the root CA for the relevant trust settings. Trust
5250 settings have an initial value consistent with the verify purpose: e.g.
5251 if the verify purpose is for SSL client use it expects the CA to be
5252 trusted for SSL client use. However the default value can be changed to
5253 permit custom trust settings: one example of this would be to only trust
5254 certificates from a specific "secure" set of CAs.
5256 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5257 which should be used for version portability: especially since the
5258 verify structure is likely to change more often now.
5260 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5261 to set them. If not set then assume SSL clients will verify SSL servers
5264 Two new options to the verify program: -untrusted allows a set of
5265 untrusted certificates to be passed in and -purpose which sets the
5266 intended purpose of the certificate. If a purpose is set then the
5267 new chain verify code is used to check extension consistency.
5270 *) Support for the authority information access extension.
5273 *) Modify RSA and DSA PEM read routines to transparently handle
5274 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5275 public keys in a format compatible with certificate
5276 SubjectPublicKeyInfo structures. Unfortunately there were already
5277 functions called *_PublicKey_* which used various odd formats so
5278 these are retained for compatibility: however the DSA variants were
5279 never in a public release so they have been deleted. Changed dsa/rsa
5280 utilities to handle the new format: note no releases ever handled public
5281 keys so we should be OK.
5283 The primary motivation for this change is to avoid the same fiasco
5284 that dogs private keys: there are several incompatible private key
5285 formats some of which are standard and some OpenSSL specific and
5286 require various evil hacks to allow partial transparent handling and
5287 even then it doesn't work with DER formats. Given the option anything
5288 other than PKCS#8 should be dumped: but the other formats have to
5289 stay in the name of compatibility.
5291 With public keys and the benefit of hindsight one standard format
5292 is used which works with EVP_PKEY, RSA or DSA structures: though
5293 it clearly returns an error if you try to read the wrong kind of key.
5295 Added a -pubkey option to the 'x509' utility to output the public key.
5296 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5297 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5298 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5299 that do the same as the EVP_PKEY_assign_*() except they up the
5300 reference count of the added key (they don't "swallow" the
5304 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5305 CRLs would fail if the file contained no certificates or no CRLs:
5306 added a new function to read in both types and return the number
5307 read: this means that if none are read it will be an error. The
5308 DER versions of the certificate and CRL reader would always fail
5309 because it isn't possible to mix certificates and CRLs in DER format
5310 without choking one or the other routine. Changed this to just read
5311 a certificate: this is the best we can do. Also modified the code
5312 in apps/verify.c to take notice of return codes: it was previously
5313 attempting to read in certificates from NULL pointers and ignoring
5314 any errors: this is one reason why the cert and CRL reader seemed
5315 to work. It doesn't check return codes from the default certificate
5316 routines: these may well fail if the certificates aren't installed.
5319 *) Code to support otherName option in GeneralName.
5322 *) First update to verify code. Change the verify utility
5323 so it warns if it is passed a self signed certificate:
5324 for consistency with the normal behaviour. X509_verify
5325 has been modified to it will now verify a self signed
5326 certificate if *exactly* the same certificate appears
5327 in the store: it was previously impossible to trust a
5328 single self signed certificate. This means that:
5329 openssl verify ss.pem
5330 now gives a warning about a self signed certificate but
5331 openssl verify -CAfile ss.pem ss.pem
5335 *) For servers, store verify_result in SSL_SESSION data structure
5336 (and add it to external session representation).
5337 This is needed when client certificate verifications fails,
5338 but an application-provided verification callback (set by
5339 SSL_CTX_set_cert_verify_callback) allows accepting the session
5340 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5341 but returns 1): When the session is reused, we have to set
5342 ssl->verify_result to the appropriate error code to avoid
5344 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5346 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5347 case in PKCS7_dataInit() where the signed PKCS7 structure
5348 didn't contain any existing data because it was being created.
5349 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5351 *) Add a salt to the key derivation routines in enc.c. This
5352 forms the first 8 bytes of the encrypted file. Also add a
5353 -S option to allow a salt to be input on the command line.
5356 *) New function X509_cmp(). Oddly enough there wasn't a function
5357 to compare two certificates. We do this by working out the SHA1
5358 hash and comparing that. X509_cmp() will be needed by the trust
5362 *) SSL_get1_session() is like SSL_get_session(), but increments
5363 the reference count in the SSL_SESSION returned.
5364 [Geoff Thorpe <geoff@eu.c2.net>]
5366 *) Fix for 'req': it was adding a null to request attributes.
5367 Also change the X509_LOOKUP and X509_INFO code to handle
5368 certificate auxiliary information.
5371 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5375 *) Add the possibility to add extra information to the memory leak
5376 detecting output, to form tracebacks, showing from where each
5377 allocation was originated: CRYPTO_push_info("constant string") adds
5378 the string plus current file name and line number to a per-thread
5379 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5380 is like calling CYRPTO_pop_info() until the stack is empty.
5381 Also updated memory leak detection code to be multi-thread-safe.
5384 *) Add options -text and -noout to pkcs7 utility and delete the
5385 encryption options which never did anything. Update docs.
5388 *) Add options to some of the utilities to allow the pass phrase
5389 to be included on either the command line (not recommended on
5390 OSes like Unix) or read from the environment. Update the
5391 manpages and fix a few bugs.
5394 *) Add a few manpages for some of the openssl commands.
5397 *) Fix the -revoke option in ca. It was freeing up memory twice,
5398 leaking and not finding already revoked certificates.
5401 *) Extensive changes to support certificate auxiliary information.
5402 This involves the use of X509_CERT_AUX structure and X509_AUX
5403 functions. An X509_AUX function such as PEM_read_X509_AUX()
5404 can still read in a certificate file in the usual way but it
5405 will also read in any additional "auxiliary information". By
5406 doing things this way a fair degree of compatibility can be
5407 retained: existing certificates can have this information added
5408 using the new 'x509' options.
5410 Current auxiliary information includes an "alias" and some trust
5411 settings. The trust settings will ultimately be used in enhanced
5412 certificate chain verification routines: currently a certificate
5413 can only be trusted if it is self signed and then it is trusted
5417 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5418 The problem was that one of the replacement routines had not been working
5419 since SSLeay releases. For now the offending routine has been replaced
5420 with non-optimised assembler. Even so, this now gives around 95%
5421 performance improvement for 1024 bit RSA signs.
5424 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5425 handling. Most clients have the effective key size in bits equal to
5426 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5427 A few however don't do this and instead use the size of the decrypted key
5428 to determine the RC2 key length and the AlgorithmIdentifier to determine
5429 the effective key length. In this case the effective key length can still
5430 be 40 bits but the key length can be 168 bits for example. This is fixed
5431 by manually forcing an RC2 key into the EVP_PKEY structure because the
5432 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5433 the key length and effective key length are equal.
5436 *) Add a bunch of functions that should simplify the creation of
5437 X509_NAME structures. Now you should be able to do:
5438 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5439 and have it automatically work out the correct field type and fill in
5440 the structures. The more adventurous can try:
5441 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5442 and it will (hopefully) work out the correct multibyte encoding.
5445 *) Change the 'req' utility to use the new field handling and multibyte
5446 copy routines. Before the DN field creation was handled in an ad hoc
5447 way in req, ca, and x509 which was rather broken and didn't support
5448 BMPStrings or UTF8Strings. Since some software doesn't implement
5449 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5450 using the dirstring_type option. See the new comment in the default
5451 openssl.cnf for more info.
5454 *) Make crypto/rand/md_rand.c more robust:
5455 - Assure unique random numbers after fork().
5456 - Make sure that concurrent threads access the global counter and
5457 md serializably so that we never lose entropy in them
5458 or use exactly the same state in multiple threads.
5459 Access to the large state is not always serializable because
5460 the additional locking could be a performance killer, and
5461 md should be large enough anyway.
5464 *) New file apps/app_rand.c with commonly needed functionality
5465 for handling the random seed file.
5467 Use the random seed file in some applications that previously did not:
5469 dsaparam -genkey (which also ignored its '-rand' option),
5472 x509 (when signing).
5473 Except on systems with /dev/urandom, it is crucial to have a random
5474 seed file at least for key creation, DSA signing, and for DH exchanges;
5475 for RSA signatures we could do without one.
5477 gendh and gendsa (unlike genrsa) used to read only the first byte
5478 of each file listed in the '-rand' option. The function as previously
5479 found in genrsa is now in app_rand.c and is used by all programs
5480 that support '-rand'.
5483 *) In RAND_write_file, use mode 0600 for creating files;
5484 don't just chmod when it may be too late.
5487 *) Report an error from X509_STORE_load_locations
5488 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5491 *) New function ASN1_mbstring_copy() this copies a string in either
5492 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5493 into an ASN1_STRING type. A mask of permissible types is passed
5494 and it chooses the "minimal" type to use or an error if not type
5498 *) Add function equivalents to the various macros in asn1.h. The old
5499 macros are retained with an M_ prefix. Code inside the library can
5500 use the M_ macros. External code (including the openssl utility)
5501 should *NOT* in order to be "shared library friendly".
5504 *) Add various functions that can check a certificate's extensions
5505 to see if it usable for various purposes such as SSL client,
5506 server or S/MIME and CAs of these types. This is currently
5507 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5508 verification. Also added a -purpose flag to x509 utility to
5509 print out all the purposes.
5512 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5516 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5517 for, obtain and decode and extension and obtain its critical flag.
5518 This allows all the necessary extension code to be handled in a
5519 single function call.
5522 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5523 platforms. See crypto/rc4/rc4_enc.c for further details.
5526 *) New -noout option to asn1parse. This causes no output to be produced
5527 its main use is when combined with -strparse and -out to extract data
5528 from a file (which may not be in ASN.1 format).
5531 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5532 when producing the local key id.
5533 [Richard Levitte <levitte@stacken.kth.se>]
5535 *) New option -dhparam in s_server. This allows a DH parameter file to be
5536 stated explicitly. If it is not stated then it tries the first server
5537 certificate file. The previous behaviour hard coded the filename
5541 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5542 a public key to be input or output. For example:
5543 openssl rsa -in key.pem -pubout -out pubkey.pem
5544 Also added necessary DSA public key functions to handle this.
5547 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5548 in the message. This was handled by allowing
5549 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5550 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5552 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5553 to the end of the strings whereas this didn't. This would cause problems
5554 if strings read with d2i_ASN1_bytes() were later modified.
5555 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5557 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5558 data and it contains EOF it will end up returning an error. This is
5559 caused by input 46 bytes long. The cause is due to the way base64
5560 BIOs find the start of base64 encoded data. They do this by trying a
5561 trial decode on each line until they find one that works. When they
5562 do a flag is set and it starts again knowing it can pass all the
5563 data directly through the decoder. Unfortunately it doesn't reset
5564 the context it uses. This means that if EOF is reached an attempt
5565 is made to pass two EOFs through the context and this causes the
5566 resulting error. This can also cause other problems as well. As is
5567 usual with these problems it takes *ages* to find and the fix is
5568 trivial: move one line.
5569 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5571 *) Ugly workaround to get s_client and s_server working under Windows. The
5572 old code wouldn't work because it needed to select() on sockets and the
5573 tty (for keypresses and to see if data could be written). Win32 only
5574 supports select() on sockets so we select() with a 1s timeout on the
5575 sockets and then see if any characters are waiting to be read, if none
5576 are present then we retry, we also assume we can always write data to
5577 the tty. This isn't nice because the code then blocks until we've
5578 received a complete line of data and it is effectively polling the
5579 keyboard at 1s intervals: however it's quite a bit better than not
5580 working at all :-) A dedicated Windows application might handle this
5581 with an event loop for example.
5584 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5585 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5586 will be called when RSA_sign() and RSA_verify() are used. This is useful
5587 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5588 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5589 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5590 This necessitated the support of an extra signature type NID_md5_sha1
5591 for SSL signatures and modifications to the SSL library to use it instead
5592 of calling RSA_public_decrypt() and RSA_private_encrypt().
5595 *) Add new -verify -CAfile and -CApath options to the crl program, these
5596 will lookup a CRL issuers certificate and verify the signature in a
5597 similar way to the verify program. Tidy up the crl program so it
5598 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5599 less strict. It will now permit CRL extensions even if it is not
5600 a V2 CRL: this will allow it to tolerate some broken CRLs.
5603 *) Initialize all non-automatic variables each time one of the openssl
5604 sub-programs is started (this is necessary as they may be started
5605 multiple times from the "OpenSSL>" prompt).
5606 [Lennart Bang, Bodo Moeller]
5608 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5609 removing all other RSA functionality (this is what NO_RSA does). This
5610 is so (for example) those in the US can disable those operations covered
5611 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5615 *) Non-copying interface to BIO pairs.
5616 (still largely untested)
5619 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5620 ASCII string. This was handled independently in various places before.
5623 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5624 UTF8 strings a character at a time.
5627 *) Use client_version from client hello to select the protocol
5628 (s23_srvr.c) and for RSA client key exchange verification
5629 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5632 *) Add various utility functions to handle SPKACs, these were previously
5633 handled by poking round in the structure internals. Added new function
5634 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5635 print, verify and generate SPKACs. Based on an original idea from
5636 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5639 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5642 *) Allow the config file extension section to be overwritten on the
5643 command line. Based on an original idea from Massimiliano Pala
5644 <madwolf@comune.modena.it>. The new option is called -extensions
5645 and can be applied to ca, req and x509. Also -reqexts to override
5646 the request extensions in req and -crlexts to override the crl extensions
5650 *) Add new feature to the SPKAC handling in ca. Now you can include
5651 the same field multiple times by preceding it by "XXXX." for example:
5654 this is the same syntax as used in the req config file.
5657 *) Allow certificate extensions to be added to certificate requests. These
5658 are specified in a 'req_extensions' option of the req section of the
5659 config file. They can be printed out with the -text option to req but
5660 are otherwise ignored at present.
5663 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5664 data read consists of only the final block it would not decrypted because
5665 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5666 A misplaced 'break' also meant the decrypted final block might not be
5667 copied until the next read.
5670 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5671 a few extra parameters to the DH structure: these will be useful if
5672 for example we want the value of 'q' or implement X9.42 DH.
5675 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5676 provides hooks that allow the default DSA functions or functions on a
5677 "per key" basis to be replaced. This allows hardware acceleration and
5678 hardware key storage to be handled without major modification to the
5679 library. Also added low level modexp hooks and CRYPTO_EX structure and
5680 associated functions.
5683 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5684 as "read only": it can't be written to and the buffer it points to will
5685 not be freed. Reading from a read only BIO is much more efficient than
5686 a normal memory BIO. This was added because there are several times when
5687 an area of memory needs to be read from a BIO. The previous method was
5688 to create a memory BIO and write the data to it, this results in two
5689 copies of the data and an O(n^2) reading algorithm. There is a new
5690 function BIO_new_mem_buf() which creates a read only memory BIO from
5691 an area of memory. Also modified the PKCS#7 routines to use read only
5695 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5696 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5697 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5698 but a retry condition occured while trying to read the rest.
5701 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5702 NID_pkcs7_encrypted by default: this was wrong since this should almost
5703 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5704 the encrypted data type: this is a more sensible place to put it and it
5705 allows the PKCS#12 code to be tidied up that duplicated this
5709 *) Changed obj_dat.pl script so it takes its input and output files on
5710 the command line. This should avoid shell escape redirection problems
5714 *) Initial support for certificate extension requests, these are included
5715 in things like Xenroll certificate requests. Included functions to allow
5716 extensions to be obtained and added.
5719 *) -crlf option to s_client and s_server for sending newlines as
5720 CRLF (as required by many protocols).
5723 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5725 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5726 [Ralf S. Engelschall]
5728 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5729 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5731 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5735 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5736 DH parameters/keys (q is lost during that conversion, but the resulting
5737 DH parameters contain its length).
5739 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5740 much faster than DH_generate_parameters (which creates parameters
5741 where p = 2*q + 1), and also the smaller q makes DH computations
5742 much more efficient (160-bit exponentiation instead of 1024-bit
5743 exponentiation); so this provides a convenient way to support DHE
5744 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5745 utter importance to use
5746 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5748 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5749 when such DH parameters are used, because otherwise small subgroup
5750 attacks may become possible!
5753 *) Avoid memory leak in i2d_DHparams.
5756 *) Allow the -k option to be used more than once in the enc program:
5757 this allows the same encrypted message to be read by multiple recipients.
5760 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5761 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5762 it will always use the numerical form of the OID, even if it has a short
5766 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5767 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5768 otherwise bn_mod_exp was called. In the case of hardware keys for example
5769 no private key components need be present and it might store extra data
5770 in the RSA structure, which cannot be accessed from bn_mod_exp.
5771 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5772 private key operations.
5775 *) Added support for SPARC Linux.
5778 *) pem_password_cb function type incompatibly changed from
5779 typedef int pem_password_cb(char *buf, int size, int rwflag);
5781 ....(char *buf, int size, int rwflag, void *userdata);
5782 so that applications can pass data to their callbacks:
5783 The PEM[_ASN1]_{read,write}... functions and macros now take an
5784 additional void * argument, which is just handed through whenever
5785 the password callback is called.
5786 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5788 New function SSL_CTX_set_default_passwd_cb_userdata.
5790 Compatibility note: As many C implementations push function arguments
5791 onto the stack in reverse order, the new library version is likely to
5792 interoperate with programs that have been compiled with the old
5793 pem_password_cb definition (PEM_whatever takes some data that
5794 happens to be on the stack as its last argument, and the callback
5795 just ignores this garbage); but there is no guarantee whatsoever that
5798 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5799 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5800 problems not only on Windows, but also on some Unix platforms.
5801 To avoid problematic command lines, these definitions are now in an
5802 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5803 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5806 *) MIPS III/IV assembler module is reimplemented.
5809 *) More DES library cleanups: remove references to srand/rand and
5810 delete an unused file.
5813 *) Add support for the the free Netwide assembler (NASM) under Win32,
5814 since not many people have MASM (ml) and it can be hard to obtain.
5815 This is currently experimental but it seems to work OK and pass all
5816 the tests. Check out INSTALL.W32 for info.
5819 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5820 without temporary keys kept an extra copy of the server key,
5821 and connections with temporary keys did not free everything in case
5825 *) New function RSA_check_key and new openssl rsa option -check
5826 for verifying the consistency of RSA keys.
5827 [Ulf Moeller, Bodo Moeller]
5829 *) Various changes to make Win32 compile work:
5830 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5831 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5832 comparison" warnings.
5833 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5836 *) Add a debugging option to PKCS#5 v2 key generation function: when
5837 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5838 derived keys are printed to stderr.
5841 *) Copy the flags in ASN1_STRING_dup().
5842 [Roman E. Pavlov <pre@mo.msk.ru>]
5844 *) The x509 application mishandled signing requests containing DSA
5845 keys when the signing key was also DSA and the parameters didn't match.
5847 It was supposed to omit the parameters when they matched the signing key:
5848 the verifying software was then supposed to automatically use the CA's
5849 parameters if they were absent from the end user certificate.
5851 Omitting parameters is no longer recommended. The test was also
5852 the wrong way round! This was probably due to unusual behaviour in
5853 EVP_cmp_parameters() which returns 1 if the parameters match.
5854 This meant that parameters were omitted when they *didn't* match and
5855 the certificate was useless. Certificates signed with 'ca' didn't have
5857 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5859 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5860 The interface is as follows:
5861 Applications can use
5862 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5863 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5864 "off" is now the default.
5865 The library internally uses
5866 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5867 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5868 to disable memory-checking temporarily.
5870 Some inconsistent states that previously were possible (and were
5871 even the default) are now avoided.
5873 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5874 with each memory chunk allocated; this is occasionally more helpful
5875 than just having a counter.
5877 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5879 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5883 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5884 which largely parallels "options", but is for changing API behaviour,
5885 whereas "options" are about protocol behaviour.
5886 Initial "mode" flags are:
5888 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5889 a single record has been written.
5890 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5891 retries use the same buffer location.
5892 (But all of the contents must be
5896 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5899 *) Fix problems with no-hmac etc.
5900 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5902 *) New functions RSA_get_default_method(), RSA_set_method() and
5903 RSA_get_method(). These allows replacement of RSA_METHODs without having
5904 to mess around with the internals of an RSA structure.
5907 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5908 Also really enable memory leak checks in openssl.c and in some
5910 [Chad C. Mulligan, Bodo Moeller]
5912 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5913 up the length of negative integers. This has now been simplified to just
5914 store the length when it is first determined and use it later, rather
5915 than trying to keep track of where data is copied and updating it to
5917 [Steve Henson, reported by Brien Wheeler
5918 <bwheeler@authentica-security.com>]
5920 *) Add a new function PKCS7_signatureVerify. This allows the verification
5921 of a PKCS#7 signature but with the signing certificate passed to the
5922 function itself. This contrasts with PKCS7_dataVerify which assumes the
5923 certificate is present in the PKCS#7 structure. This isn't always the
5924 case: certificates can be omitted from a PKCS#7 structure and be
5925 distributed by "out of band" means (such as a certificate database).
5928 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5929 function prototypes in pem.h, also change util/mkdef.pl to add the
5930 necessary function names.
5933 *) mk1mf.pl (used by Windows builds) did not properly read the
5934 options set by Configure in the top level Makefile, and Configure
5935 was not even able to write more than one option correctly.
5936 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5939 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5940 file to be loaded from a BIO or FILE pointer. The BIO version will
5941 for example allow memory BIOs to contain config info.
5944 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5945 Whoever hopes to achieve shared-library compatibility across versions
5946 must use this, not the compile-time macro.
5947 (Exercise 0.9.4: Which is the minimum library version required by
5949 Note: All this applies only to multi-threaded programs, others don't
5953 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5954 through a BIO pair triggered the default case, i.e.
5955 SSLerr(...,SSL_R_UNKNOWN_STATE).
5958 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5959 can use the SSL library even if none of the specific BIOs is
5963 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5964 for the encoded length.
5965 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5967 *) Add initial documentation of the X509V3 functions.
5970 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5971 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5972 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5973 secure PKCS#8 private key format with a high iteration count.
5976 *) Fix determination of Perl interpreter: A perl or perl5
5977 _directory_ in $PATH was also accepted as the interpreter.
5978 [Ralf S. Engelschall]
5980 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5981 wrong with it but it was very old and did things like calling
5982 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5986 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5987 to use the new extension code.
5990 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5991 with macros. This should make it easier to change their form, add extra
5992 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5996 *) Add to configuration table a new entry that can specify an alternative
5997 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5998 according to Mark Crispin <MRC@Panda.COM>.
6002 *) DES CBC did not update the IV. Weird.
6005 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6006 Changing the behaviour of the former might break existing programs --
6007 where IV updating is needed, des_ncbc_encrypt can be used.
6010 *) When bntest is run from "make test" it drives bc to check its
6011 calculations, as well as internally checking them. If an internal check
6012 fails, it needs to cause bc to give a non-zero result or make test carries
6013 on without noticing the failure. Fixed.
6016 *) DES library cleanups.
6019 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6020 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6021 ciphers. NOTE: although the key derivation function has been verified
6022 against some published test vectors it has not been extensively tested
6023 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6027 *) Instead of "mkdir -p", which is not fully portable, use new
6028 Perl script "util/mkdir-p.pl".
6031 *) Rewrite the way password based encryption (PBE) is handled. It used to
6032 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6033 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6034 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6035 the 'parameter' field of the AlgorithmIdentifier is passed to the
6036 underlying key generation function so it must do its own ASN1 parsing.
6037 This has also changed the EVP_PBE_CipherInit() function which now has a
6038 'parameter' argument instead of literal salt and iteration count values
6039 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6042 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6043 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6044 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6045 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6046 value was just used as a "magic string" and not used directly its
6047 value doesn't matter.
6050 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6054 *) "linux-sparc64" configuration (ultrapenguin).
6055 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6056 "linux-sparc" configuration.
6057 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6059 *) config now generates no-xxx options for missing ciphers.
6062 *) Support the EBCDIC character set (work in progress).
6063 File ebcdic.c not yet included because it has a different license.
6064 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6066 *) Support BS2000/OSD-POSIX.
6067 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6069 *) Make callbacks for key generation use void * instead of char *.
6072 *) Make S/MIME samples compile (not yet tested).
6075 *) Additional typesafe stacks.
6078 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6082 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6084 *) New configuration variant "sco5-gcc".
6086 *) Updated some demos.
6087 [Sean O Riordain, Wade Scholine]
6089 *) Add missing BIO_free at exit of pkcs12 application.
6092 *) Fix memory leak in conf.c.
6095 *) Updates for Win32 to assembler version of MD5.
6098 *) Set #! path to perl in apps/der_chop to where we found it
6099 instead of using a fixed path.
6102 *) SHA library changes for irix64-mips4-cc.
6105 *) Improvements for VMS support.
6109 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6111 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6112 This also avoids the problems with SC4.2 and unpatched SC5.
6113 [Andy Polyakov <appro@fy.chalmers.se>]
6115 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6116 These are required because of the typesafe stack would otherwise break
6117 existing code. If old code used a structure member which used to be STACK
6118 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6119 sk_num or sk_value it would produce an error because the num, data members
6120 are not present in STACK_OF. Now it just produces a warning. sk_set
6121 replaces the old method of assigning a value to sk_value
6122 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6123 that does this will no longer work (and should use sk_set instead) but
6124 this could be regarded as a "questionable" behaviour anyway.
6127 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6128 correctly handle encrypted S/MIME data.
6131 *) Change type of various DES function arguments from des_cblock
6132 (which means, in function argument declarations, pointer to char)
6133 to des_cblock * (meaning pointer to array with 8 char elements),
6134 which allows the compiler to do more typechecking; it was like
6135 that back in SSLeay, but with lots of ugly casts.
6137 Introduce new type const_des_cblock.
6140 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6141 problems: find RecipientInfo structure that matches recipient certificate
6142 and initialise the ASN1 structures properly based on passed cipher.
6145 *) Belatedly make the BN tests actually check the results.
6148 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6149 to and from BNs: it was completely broken. New compilation option
6150 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6151 key elements as negative integers.
6154 *) Reorganize and speed up MD5.
6155 [Andy Polyakov <appro@fy.chalmers.se>]
6158 [Richard Levitte <richard@levitte.org>]
6160 *) New option -out to asn1parse to allow the parsed structure to be
6161 output to a file. This is most useful when combined with the -strparse
6162 option to examine the output of things like OCTET STRINGS.
6165 *) Make SSL library a little more fool-proof by not requiring any longer
6166 that SSL_set_{accept,connect}_state be called before
6167 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6168 in many applications because usually everything *appeared* to work as
6169 intended anyway -- now it really works as intended).
6172 *) Move openssl.cnf out of lib/.
6175 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6176 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6177 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6178 [Ralf S. Engelschall]
6180 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6181 handle PKCS#7 enveloped data properly.
6182 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6184 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6185 copying pointers. The cert_st handling is changed by this in
6186 various ways (and thus what used to be known as ctx->default_cert
6187 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6188 any longer when s->cert does not give us what we need).
6189 ssl_cert_instantiate becomes obsolete by this change.
6190 As soon as we've got the new code right (possibly it already is?),
6191 we have solved a couple of bugs of the earlier code where s->cert
6192 was used as if it could not have been shared with other SSL structures.
6194 Note that using the SSL API in certain dirty ways now will result
6195 in different behaviour than observed with earlier library versions:
6196 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6197 does not influence s as it used to.
6199 In order to clean up things more thoroughly, inside SSL_SESSION
6200 we don't use CERT any longer, but a new structure SESS_CERT
6201 that holds per-session data (if available); currently, this is
6202 the peer's certificate chain and, for clients, the server's certificate
6203 and temporary key. CERT holds only those values that can have
6204 meaningful defaults in an SSL_CTX.
6207 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6208 from the internal representation. Various PKCS#7 fixes: remove some
6209 evil casts and set the enc_dig_alg field properly based on the signing
6213 *) Allow PKCS#12 password to be set from the command line or the
6214 environment. Let 'ca' get its config file name from the environment
6215 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6219 *) Allow certificate policies extension to use an IA5STRING for the
6220 organization field. This is contrary to the PKIX definition but
6221 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6225 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6226 without disallowing inline assembler and the like for non-pedantic builds.
6229 *) Support Borland C++ builder.
6230 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6235 *) SHA-1 cleanups and performance enhancements.
6236 [Andy Polyakov <appro@fy.chalmers.se>]
6238 *) Sparc v8plus assembler for the bignum library.
6239 [Andy Polyakov <appro@fy.chalmers.se>]
6241 *) Accept any -xxx and +xxx compiler options in Configure.
6244 *) Update HPUX configuration.
6247 *) Add missing sk_<type>_unshift() function to safestack.h
6248 [Ralf S. Engelschall]
6250 *) New function SSL_CTX_use_certificate_chain_file that sets the
6251 "extra_cert"s in addition to the certificate. (This makes sense
6252 only for "PEM" format files, as chains as a whole are not
6256 *) Support verify_depth from the SSL API.
6257 x509_vfy.c had what can be considered an off-by-one-error:
6258 Its depth (which was not part of the external interface)
6259 was actually counting the number of certificates in a chain;
6260 now it really counts the depth.
6263 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6264 instead of X509err, which often resulted in confusing error
6265 messages since the error codes are not globally unique
6266 (e.g. an alleged error in ssl3_accept when a certificate
6267 didn't match the private key).
6269 *) New function SSL_CTX_set_session_id_context that allows to set a default
6270 value (so that you don't need SSL_set_session_id_context for each
6271 connection using the SSL_CTX).
6274 *) OAEP decoding bug fix.
6277 *) Support INSTALL_PREFIX for package builders, as proposed by
6281 *) New Configure options "threads" and "no-threads". For systems
6282 where the proper compiler options are known (currently Solaris
6283 and Linux), "threads" is the default.
6286 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6289 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6290 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6291 such as /usr/local/bin.
6294 *) "make linux-shared" to build shared libraries.
6295 [Niels Poppe <niels@netbox.org>]
6297 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6300 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6301 extension adding in x509 utility.
6304 *) Remove NOPROTO sections and error code comments.
6307 *) Partial rewrite of the DEF file generator to now parse the ANSI
6311 *) New Configure options --prefix=DIR and --openssldir=DIR.
6314 *) Complete rewrite of the error code script(s). It is all now handled
6315 by one script at the top level which handles error code gathering,
6316 header rewriting and C source file generation. It should be much better
6317 than the old method: it now uses a modified version of Ulf's parser to
6318 read the ANSI prototypes in all header files (thus the old K&R definitions
6319 aren't needed for error creation any more) and do a better job of
6320 translating function codes into names. The old 'ASN1 error code imbedded
6321 in a comment' is no longer necessary and it doesn't use .err files which
6322 have now been deleted. Also the error code call doesn't have to appear all
6323 on one line (which resulted in some large lines...).
6326 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6329 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6330 0 (which usually indicates a closed connection), but continue reading.
6333 *) Fix some race conditions.
6336 *) Add support for CRL distribution points extension. Add Certificate
6337 Policies and CRL distribution points documentation.
6340 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6343 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6344 8 of keying material. Merlin has also confirmed interop with this fix
6345 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6346 [Merlin Hughes <merlin@baltimore.ie>]
6348 *) Fix lots of warnings.
6349 [Richard Levitte <levitte@stacken.kth.se>]
6351 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6352 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6353 [Richard Levitte <levitte@stacken.kth.se>]
6355 *) Fix problems with sizeof(long) == 8.
6356 [Andy Polyakov <appro@fy.chalmers.se>]
6358 *) Change functions to ANSI C.
6361 *) Fix typos in error codes.
6362 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6364 *) Remove defunct assembler files from Configure.
6367 *) SPARC v8 assembler BIGNUM implementation.
6368 [Andy Polyakov <appro@fy.chalmers.se>]
6370 *) Support for Certificate Policies extension: both print and set.
6371 Various additions to support the r2i method this uses.
6374 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6375 return a const string when you are expecting an allocated buffer.
6378 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6379 types DirectoryString and DisplayText.
6382 *) Add code to allow r2i extensions to access the configuration database,
6383 add an LHASH database driver and add several ctx helper functions.
6386 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6387 fail when they extended the size of a BIGNUM.
6390 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6391 support typesafe stack.
6394 *) Fix typo in SSL_[gs]et_options().
6395 [Nils Frostberg <nils@medcom.se>]
6397 *) Delete various functions and files that belonged to the (now obsolete)
6398 old X509V3 handling code.
6401 *) New Configure option "rsaref".
6404 *) Don't auto-generate pem.h.
6407 *) Introduce type-safe ASN.1 SETs.
6410 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6411 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6413 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6414 that links with OpenSSL (well at least cause lots of warnings), but fear
6415 not: the conversion is trivial, and it eliminates loads of evil casts. A
6416 few STACKed things have been converted already. Feel free to convert more.
6417 In the fullness of time, I'll do away with the STACK type altogether.
6420 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6421 specified in <certfile> by updating the entry in the index.txt file.
6422 This way one no longer has to edit the index.txt file manually for
6423 revoking a certificate. The -revoke option does the gory details now.
6424 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6426 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6427 `-text' option at all and this way the `-noout -text' combination was
6428 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6429 [Ralf S. Engelschall]
6431 *) Make sure a corresponding plain text error message exists for the
6432 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6433 verify callback function determined that a certificate was revoked.
6434 [Ralf S. Engelschall]
6436 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6437 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6438 all available cipers including rc5, which was forgotten until now.
6439 In order to let the testing shell script know which algorithms
6440 are available, a new (up to now undocumented) command
6441 "openssl list-cipher-commands" is used.
6444 *) Bugfix: s_client occasionally would sleep in select() when
6445 it should have checked SSL_pending() first.
6448 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6449 the raw DSA values prior to ASN.1 encoding.
6452 *) Tweaks to Configure
6453 [Niels Poppe <niels@netbox.org>]
6455 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6459 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6462 *) New config option to avoid instructions that are illegal on the 80386.
6463 The default code is faster, but requires at least a 486.
6466 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6467 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6468 same as SSL2_VERSION anyway.
6471 *) New "-showcerts" option for s_client.
6474 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6475 application. Various cleanups and fixes.
6478 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6479 modify error routines to work internally. Add error codes and PBE init
6480 to library startup routines.
6483 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6484 packing functions to asn1 and evp. Changed function names and error
6485 codes along the way.
6488 *) PKCS12 integration: and so it begins... First of several patches to
6489 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6490 objects to objects.h
6493 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6494 and display support for Thawte strong extranet extension.
6497 *) Add LinuxPPC support.
6498 [Jeff Dubrule <igor@pobox.org>]
6500 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6501 bn_div_words in alpha.s.
6502 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6504 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6505 OAEP isn't supported when OpenSSL is built with RSAref.
6506 [Ulf Moeller <ulf@fitug.de>]
6508 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6509 so they no longer are missing under -DNOPROTO.
6510 [Soren S. Jorvang <soren@t.dk>]
6513 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6515 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6516 doesn't work when the session is reused. Coming soon!
6519 *) Fix a security hole, that allows sessions to be reused in the wrong
6520 context thus bypassing client cert protection! All software that uses
6521 client certs and session caches in multiple contexts NEEDS PATCHING to
6522 allow session reuse! A fuller solution is in the works.
6523 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6525 *) Some more source tree cleanups (removed obsolete files
6526 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6527 permission on "config" script to be executable) and a fix for the INSTALL
6529 [Ulf Moeller <ulf@fitug.de>]
6531 *) Remove some legacy and erroneous uses of malloc, free instead of
6533 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6535 *) Make rsa_oaep_test return non-zero on error.
6536 [Ulf Moeller <ulf@fitug.de>]
6538 *) Add support for native Solaris shared libraries. Configure
6539 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6540 if someone would make that last step automatic.
6541 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6543 *) ctx_size was not built with the right compiler during "make links". Fixed.
6546 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6547 except NULL ciphers". This means the default cipher list will no longer
6548 enable NULL ciphers. They need to be specifically enabled e.g. with
6549 the string "DEFAULT:eNULL".
6552 *) Fix to RSA private encryption routines: if p < q then it would
6553 occasionally produce an invalid result. This will only happen with
6554 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6557 *) Be less restrictive and allow also `perl util/perlpath.pl
6558 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6559 because this way one can also use an interpreter named `perl5' (which is
6560 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6561 installed as `perl').
6562 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6564 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6565 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6567 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6568 advapi32.lib to Win32 build and change the pem test comparision
6569 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6570 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6571 and crypto/des/ede_cbcm_enc.c.
6574 *) DES quad checksum was broken on big-endian architectures. Fixed.
6577 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6578 Win32 test batch file so it (might) work again. The Win32 test batch file
6579 is horrible: I feel ill....
6582 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6583 in e_os.h. Audit of header files to check ANSI and non ANSI
6584 sections: 10 functions were absent from non ANSI section and not exported
6585 from Windows DLLs. Fixed up libeay.num for new functions.
6588 *) Make `openssl version' output lines consistent.
6589 [Ralf S. Engelschall]
6591 *) Fix Win32 symbol export lists for BIO functions: Added
6592 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6593 to ms/libeay{16,32}.def.
6594 [Ralf S. Engelschall]
6596 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6597 fine under Unix and passes some trivial tests I've now added. But the
6598 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6599 added to make sure no one expects that this stuff really works in the
6600 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6601 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6603 [Ralf S. Engelschall]
6605 *) Fix the generation of two part addresses in perl.
6606 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6608 *) Add config entry for Linux on MIPS.
6609 [John Tobey <jtobey@channel1.com>]
6611 *) Make links whenever Configure is run, unless we are on Windoze.
6614 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6615 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6619 *) Add a useful kludge to allow package maintainers to specify compiler and
6620 other platforms details on the command line without having to patch the
6621 Configure script everytime: One now can use ``perl Configure
6622 <id>:<details>'', i.e. platform ids are allowed to have details appended
6623 to them (seperated by colons). This is treated as there would be a static
6624 pre-configured entry in Configure's %table under key <id> with value
6625 <details> and ``perl Configure <id>'' is called. So, when you want to
6626 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6627 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6628 now, which overrides the FreeBSD-elf entry on-the-fly.
6629 [Ralf S. Engelschall]
6631 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6634 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6635 on the `perl Configure ...' command line. This way one can compile
6636 OpenSSL libraries with Position Independent Code (PIC) which is needed
6637 for linking it into DSOs.
6638 [Ralf S. Engelschall]
6640 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6644 *) Cleaned up the LICENSE document: The official contact for any license
6645 questions now is the OpenSSL core team under openssl-core@openssl.org.
6646 And add a paragraph about the dual-license situation to make sure people
6647 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6648 to the OpenSSL toolkit.
6649 [Ralf S. Engelschall]
6651 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6652 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6653 Additonally cleaned up the `make links' target: Remove unnecessary
6654 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6655 to speed processing and no longer clutter the display with confusing
6656 stuff. Instead only the actually done links are displayed.
6657 [Ralf S. Engelschall]
6659 *) Permit null encryption ciphersuites, used for authentication only. It used
6660 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6661 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6665 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6666 signed attributes when verifying signatures (this would break them),
6667 the detached data encoding was wrong and public keys obtained using
6668 X509_get_pubkey() weren't freed.
6671 *) Add text documentation for the BUFFER functions. Also added a work around
6672 to a Win95 console bug. This was triggered by the password read stuff: the
6673 last character typed gets carried over to the next fread(). If you were
6674 generating a new cert request using 'req' for example then the last
6675 character of the passphrase would be CR which would then enter the first
6679 *) Added the new `Includes OpenSSL Cryptography Software' button as
6680 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6681 button and can be used by applications based on OpenSSL to show the
6682 relationship to the OpenSSL project.
6683 [Ralf S. Engelschall]
6685 *) Remove confusing variables in function signatures in files
6686 ssl/ssl_lib.c and ssl/ssl.h.
6687 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6689 *) Don't install bss_file.c under PREFIX/include/
6690 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6692 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6693 functions that return function pointers and has support for NT specific
6694 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6695 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6696 unsigned to signed types: this was killing the Win32 compile.
6699 *) Add new certificate file to stack functions,
6700 SSL_add_dir_cert_subjects_to_stack() and
6701 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6702 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6703 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6704 This means that Apache-SSL and similar packages don't have to mess around
6705 to add as many CAs as they want to the preferred list.
6708 *) Experiment with doxygen documentation. Currently only partially applied to
6710 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6711 openssl.doxy as the configuration file.
6714 *) Get rid of remaining C++-style comments which strict C compilers hate.
6715 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6717 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6718 compiled in by default: it has problems with large keys.
6721 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6722 DH private keys and/or callback functions which directly correspond to
6723 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6724 is needed for applications which have to configure certificates on a
6725 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6727 For the RSA certificate situation is makes no difference, but
6728 for the DSA certificate situation this fixes the "no shared cipher"
6729 problem where the OpenSSL cipher selection procedure failed because the
6730 temporary keys were not overtaken from the context and the API provided
6731 no way to reconfigure them.
6732 The new functions now let applications reconfigure the stuff and they
6733 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6734 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6735 non-public-API function ssl_cert_instantiate() is used as a helper
6736 function and also to reduce code redundancy inside ssl_rsa.c.
6737 [Ralf S. Engelschall]
6739 *) Move s_server -dcert and -dkey options out of the undocumented feature
6740 area because they are useful for the DSA situation and should be
6741 recognized by the users.
6742 [Ralf S. Engelschall]
6744 *) Fix the cipher decision scheme for export ciphers: the export bits are
6745 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6746 SSL_EXP_MASK. So, the original variable has to be used instead of the
6747 already masked variable.
6748 [Richard Levitte <levitte@stacken.kth.se>]
6750 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6751 [Richard Levitte <levitte@stacken.kth.se>]
6753 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6754 from `int' to `unsigned int' because it's a length and initialized by
6755 EVP_DigestFinal() which expects an `unsigned int *'.
6756 [Richard Levitte <levitte@stacken.kth.se>]
6758 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6759 script. Instead use the usual Shell->Perl transition trick.
6760 [Ralf S. Engelschall]
6762 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6763 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6764 -noout -modulus' as it's already the case for `openssl rsa -noout
6765 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6766 currently the public key is printed (a decision which was already done by
6767 `openssl dsa -modulus' in the past) which serves a similar purpose.
6768 Additionally the NO_RSA no longer completely removes the whole -modulus
6769 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6771 [Ralf S. Engelschall]
6773 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6774 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6775 [Arne Ansper <arne@ats.cyber.ee>]
6777 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6778 to be added. Now both 'req' and 'ca' can use new objects defined in the
6782 *) Add cool BIO that does syslog (or event log on NT).
6783 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6785 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6786 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6787 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6788 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6791 *) Add preliminary config info for new extension code.
6794 *) Make RSA_NO_PADDING really use no padding.
6795 [Ulf Moeller <ulf@fitug.de>]
6797 *) Generate errors when private/public key check is done.
6800 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6801 for some CRL extensions and new objects added.
6804 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6805 key usage extension and fuller support for authority key id.
6808 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6809 padding method for RSA, which is recommended for new applications in PKCS
6810 #1 v2.0 (RFC 2437, October 1998).
6811 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6812 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6813 against Bleichbacher's attack on RSA.
6814 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6817 *) Updates to the new SSL compression code
6818 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6820 *) Fix so that the version number in the master secret, when passed
6821 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6822 (because the server will not accept higher), that the version number
6823 is 0x03,0x01, not 0x03,0x00
6824 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6826 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6827 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6828 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6831 *) Support for RAW extensions where an arbitrary extension can be
6832 created by including its DER encoding. See apps/openssl.cnf for
6836 *) Make sure latest Perl versions don't interpret some generated C array
6837 code as Perl array code in the crypto/err/err_genc.pl script.
6838 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6840 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6841 not many people have the assembler. Various Win32 compilation fixes and
6842 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6846 *) Modify configure script 'Configure' to automatically create crypto/date.h
6847 file under Win32 and also build pem.h from pem.org. New script
6848 util/mkfiles.pl to create the MINFO file on environments that can't do a
6849 'make files': perl util/mkfiles.pl >MINFO should work.
6852 *) Major rework of DES function declarations, in the pursuit of correctness
6853 and purity. As a result, many evil casts evaporated, and some weirdness,
6854 too. You may find this causes warnings in your code. Zapping your evil
6855 casts will probably fix them. Mostly.
6858 *) Fix for a typo in asn1.h. Bug fix to object creation script
6859 obj_dat.pl. It considered a zero in an object definition to mean
6860 "end of object": none of the objects in objects.h have any zeros
6861 so it wasn't spotted.
6862 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6864 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6865 Masking (CBCM). In the absence of test vectors, the best I have been able
6866 to do is check that the decrypt undoes the encrypt, so far. Send me test
6867 vectors if you have them.
6870 *) Correct calculation of key length for export ciphers (too much space was
6871 allocated for null ciphers). This has not been tested!
6874 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6875 message is now correct (it understands "crypto" and "ssl" on its
6876 command line). There is also now an "update" option. This will update
6877 the util/ssleay.num and util/libeay.num files with any new functions.
6879 perl util/mkdef.pl crypto ssl update
6880 it will update them.
6883 *) Overhauled the Perl interface (perl/*):
6884 - ported BN stuff to OpenSSL's different BN library
6885 - made the perl/ source tree CVS-aware
6886 - renamed the package from SSLeay to OpenSSL (the files still contain
6887 their history because I've copied them in the repository)
6888 - removed obsolete files (the test scripts will be replaced
6889 by better Test::Harness variants in the future)
6890 [Ralf S. Engelschall]
6892 *) First cut for a very conservative source tree cleanup:
6893 1. merge various obsolete readme texts into doc/ssleay.txt
6894 where we collect the old documents and readme texts.
6895 2. remove the first part of files where I'm already sure that we no
6896 longer need them because of three reasons: either they are just temporary
6897 files which were left by Eric or they are preserved original files where
6898 I've verified that the diff is also available in the CVS via "cvs diff
6899 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6900 the crypto/md/ stuff).
6901 [Ralf S. Engelschall]
6903 *) More extension code. Incomplete support for subject and issuer alt
6904 name, issuer and authority key id. Change the i2v function parameters
6905 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6906 what that's for :-) Fix to ASN1 macro which messed up
6907 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6910 *) Preliminary support for ENUMERATED type. This is largely copied from the
6914 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6915 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6917 *) Make sure `make rehash' target really finds the `openssl' program.
6918 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6920 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6921 like to hear about it if this slows down other processors.
6924 *) Add CygWin32 platform information to Configure script.
6925 [Alan Batie <batie@aahz.jf.intel.com>]
6927 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6928 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6930 *) New program nseq to manipulate netscape certificate sequences
6933 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6937 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6938 but the BN code had some problems that would cause failures when
6939 doing certificate verification and some other functions.
6940 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6942 *) Add ASN1 and PEM code to support netscape certificate sequences.
6945 *) Add ASN1 and PEM code to support netscape certificate sequences.
6948 *) Add several PKIX and private extended key usage OIDs.
6951 *) Modify the 'ca' program to handle the new extension code. Modify
6952 openssl.cnf for new extension format, add comments.
6955 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6956 and add a sample to openssl.cnf so req -x509 now adds appropriate
6960 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6961 error code, add initial support to X509_print() and x509 application.
6964 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6965 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6966 stuff is currently isolated and isn't even compiled yet.
6969 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6970 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6971 Removed the versions check from X509 routines when loading extensions:
6972 this allows certain broken certificates that don't set the version
6973 properly to be processed.
6976 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6977 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6978 can still be regenerated with "make depend".
6981 *) Spelling mistake in C version of CAST-128.
6982 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6984 *) Changes to the error generation code. The perl script err-code.pl
6985 now reads in the old error codes and retains the old numbers, only
6986 adding new ones if necessary. It also only changes the .err files if new
6987 codes are added. The makefiles have been modified to only insert errors
6988 when needed (to avoid needlessly modifying header files). This is done
6989 by only inserting errors if the .err file is newer than the auto generated
6990 C file. To rebuild all the error codes from scratch (the old behaviour)
6991 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6992 or delete all the .err files.
6995 *) CAST-128 was incorrectly implemented for short keys. The C version has
6996 been fixed, but is untested. The assembler versions are also fixed, but
6997 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6998 to regenerate it if needed.
6999 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7000 Hagino <itojun@kame.net>]
7002 *) File was opened incorrectly in randfile.c.
7003 [Ulf Möller <ulf@fitug.de>]
7005 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7006 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7007 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7008 al: it's just almost always a UTCTime. Note this patch adds new error
7009 codes so do a "make errors" if there are problems.
7012 *) Correct Linux 1 recognition in config.
7013 [Ulf Möller <ulf@fitug.de>]
7015 *) Remove pointless MD5 hash when using DSA keys in ca.
7016 [Anonymous <nobody@replay.com>]
7018 *) Generate an error if given an empty string as a cert directory. Also
7019 generate an error if handed NULL (previously returned 0 to indicate an
7020 error, but didn't set one).
7021 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7023 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7026 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7027 parameters. This was causing a warning which killed off the Win32 compile.
7030 *) Remove C++ style comments from crypto/bn/bn_local.h.
7031 [Neil Costigan <neil.costigan@celocom.com>]
7033 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7034 based on a text string, looking up short and long names and finally
7035 "dot" format. The "dot" format stuff didn't work. Added new function
7036 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7037 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7038 OID is not part of the table.
7041 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7042 X509_LOOKUP_by_alias().
7045 *) Sort openssl functions by name.
7048 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7049 encryption from sample DSA keys (in case anyone is interested the password
7053 *) Make _all_ *_free functions accept a NULL pointer.
7054 [Frans Heymans <fheymans@isaserver.be>]
7056 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7058 [Anonymous <nobody@replay.com>]
7060 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7061 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7063 *) Don't blow it for numeric -newkey arguments to apps/req.
7064 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7066 *) Temp key "for export" tests were wrong in s3_srvr.c.
7067 [Anonymous <nobody@replay.com>]
7069 *) Add prototype for temp key callback functions
7070 SSL_CTX_set_tmp_{rsa,dh}_callback().
7073 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7074 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7077 *) X509_name_add_entry() freed the wrong thing after an error.
7078 [Arne Ansper <arne@ats.cyber.ee>]
7080 *) rsa_eay.c would attempt to free a NULL context.
7081 [Arne Ansper <arne@ats.cyber.ee>]
7083 *) BIO_s_socket() had a broken should_retry() on Windoze.
7084 [Arne Ansper <arne@ats.cyber.ee>]
7086 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7087 [Arne Ansper <arne@ats.cyber.ee>]
7089 *) Make sure the already existing X509_STORE->depth variable is initialized
7090 in X509_STORE_new(), but document the fact that this variable is still
7091 unused in the certificate verification process.
7092 [Ralf S. Engelschall]
7094 *) Fix the various library and apps files to free up pkeys obtained from
7095 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7098 *) Fix reference counting in X509_PUBKEY_get(). This makes
7099 demos/maurice/example2.c work, amongst others, probably.
7100 [Steve Henson and Ben Laurie]
7102 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7103 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7104 are no longer created. This way we have a single and consistent command
7105 line interface `openssl <command>', similar to `cvs <command>'.
7106 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7108 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7109 BIT STRING wrapper always have zero unused bits.
7112 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7115 *) Make the top-level INSTALL documentation easier to understand.
7118 *) Makefiles updated to exit if an error occurs in a sub-directory
7119 make (including if user presses ^C) [Paul Sutton]
7121 *) Make Montgomery context stuff explicit in RSA data structure.
7124 *) Fix build order of pem and err to allow for generated pem.h.
7127 *) Fix renumbering bug in X509_NAME_delete_entry().
7130 *) Enhanced the err-ins.pl script so it makes the error library number
7131 global and can add a library name. This is needed for external ASN1 and
7132 other error libraries.
7135 *) Fixed sk_insert which never worked properly.
7138 *) Fix ASN1 macros so they can handle indefinite length construted
7139 EXPLICIT tags. Some non standard certificates use these: they can now
7143 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7144 into a single doc/ssleay.txt bundle. This way the information is still
7145 preserved but no longer messes up this directory. Now it's new room for
7146 the new set of documenation files.
7147 [Ralf S. Engelschall]
7149 *) SETs were incorrectly DER encoded. This was a major pain, because they
7150 shared code with SEQUENCEs, which aren't coded the same. This means that
7151 almost everything to do with SETs or SEQUENCEs has either changed name or
7152 number of arguments.
7153 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7155 *) Fix test data to work with the above.
7158 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7159 was already fixed by Eric for 0.9.1 it seems.
7160 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7162 *) Autodetect FreeBSD3.
7165 *) Fix various bugs in Configure. This affects the following platforms:
7169 unixware-2.0-pentium
7173 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7174 before they are needed.
7177 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7181 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7183 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7184 changed SSLeay to OpenSSL in version strings.
7185 [Ralf S. Engelschall]
7187 *) Some fixups to the top-level documents.
7190 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7191 because the symlink to include/ was missing.
7192 [Ralf S. Engelschall]
7194 *) Incorporated the popular no-RSA/DSA-only patches
7195 which allow to compile a RSA-free SSLeay.
7196 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7198 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7199 when "ssleay" is still not found.
7200 [Ralf S. Engelschall]
7202 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7203 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7205 *) Updated the README file.
7206 [Ralf S. Engelschall]
7208 *) Added various .cvsignore files in the CVS repository subdirs
7209 to make a "cvs update" really silent.
7210 [Ralf S. Engelschall]
7212 *) Recompiled the error-definition header files and added
7213 missing symbols to the Win32 linker tables.
7214 [Ralf S. Engelschall]
7216 *) Cleaned up the top-level documents;
7217 o new files: CHANGES and LICENSE
7218 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7219 o merged COPYRIGHT into LICENSE
7220 o removed obsolete TODO file
7221 o renamed MICROSOFT to INSTALL.W32
7222 [Ralf S. Engelschall]
7224 *) Removed dummy files from the 0.9.1b source tree:
7225 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7226 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7227 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7228 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7229 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7230 [Ralf S. Engelschall]
7232 *) Added various platform portability fixes.
7235 *) The Genesis of the OpenSSL rpject:
7236 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7237 Young and Tim J. Hudson created while they were working for C2Net until
7239 [The OpenSSL Project]
7242 Changes between 0.9.0b and 0.9.1b [not released]
7244 *) Updated a few CA certificates under certs/
7247 *) Changed some BIGNUM api stuff.
7250 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7251 DGUX x86, Linux Alpha, etc.
7254 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7255 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7259 *) Add -strparse option to asn1pars program which parses nested
7261 [Dr Stephen Henson <shenson@bigfoot.com>]
7263 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7266 *) DSA fix for "ca" program.
7269 *) Added "-genkey" option to "dsaparam" program.
7272 *) Added RIPE MD160 (rmd160) message digest.
7275 *) Added -a (all) option to "ssleay version" command.
7278 *) Added PLATFORM define which is the id given to Configure.
7281 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7284 *) Extended the ASN.1 parser routines.
7287 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7290 *) Added a BN_CTX to the BN library.
7293 *) Fixed the weak key values in DES library
7296 *) Changed API in EVP library for cipher aliases.
7299 *) Added support for RC2/64bit cipher.
7302 *) Converted the lhash library to the crypto/mem.c functions.
7305 *) Added more recognized ASN.1 object ids.
7308 *) Added more RSA padding checks for SSL/TLS.
7311 *) Added BIO proxy/filter functionality.
7314 *) Added extra_certs to SSL_CTX which can be used
7315 send extra CA certificates to the client in the CA cert chain sending
7316 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7319 *) Now Fortezza is denied in the authentication phase because
7320 this is key exchange mechanism is not supported by SSLeay at all.
7323 *) Additional PKCS1 checks.
7326 *) Support the string "TLSv1" for all TLS v1 ciphers.
7329 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7330 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7333 *) Fixed a few memory leaks.
7336 *) Fixed various code and comment typos.
7339 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7340 bytes sent in the client random.
7341 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob