5 Changes between 0.9.7e and 0.9.8 [xx XXX xxxx]
7 *) New utility extract-section.pl. This can be used specify an alternative
8 section number in a pod file instead of having to treat each file as
9 a separate case in Makefile. This can be done by adding two lines to the
12 =for comment openssl_section:XXX
14 The blank line is mandatory.
18 *) New arguments -certform, -keyform and -pass for s_client and s_server
19 to allow alternative format key and certificate files and passphrase
23 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
24 update associated structures and add various utility functions.
26 Add new policy related verify parameters, include policy checking in
27 standard verify code. Enhance 'smime' application with extra parameters
28 to support policy checking and print out.
31 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
32 Nehemiah processors. These extensions support AES encryption in hardware
33 as well as RNG (though RNG support is currently disabled).
34 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
36 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
39 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
40 [Andy Polyakov and a number of other people]
42 *) Improved PowerPC platform support. Most notably BIGNUM assembler
43 implementation contributed by IBM.
44 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
46 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
47 exponent rather than 'unsigned long'. There is a corresponding change to
48 the new 'rsa_keygen' element of the RSA_METHOD structure.
49 [Jelte Jansen, Geoff Thorpe]
51 *) Functionality for creating the initial serial number file is now
52 moved from CA.pl to the 'ca' utility with a new option -create_serial.
54 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
55 number file to 1, which is bound to cause problems. To avoid
56 the problems while respecting compatibility between different 0.9.7
57 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
58 CA.pl for serial number initialization. With the new release 0.9.8,
59 we can fix the problem directly in the 'ca' utility.)
62 *) Reduced header interdepencies by declaring more opaque objects in
63 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
64 give fewer recursive includes, which could break lazy source code - so
65 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
66 developers should define this symbol when building and using openssl to
67 ensure they track the recommended behaviour, interfaces, [etc], but
68 backwards-compatible behaviour prevails when this isn't defined.
71 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
74 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
75 This will generate a random key of the appropriate length based on the
76 cipher context. The EVP_CIPHER can provide its own random key generation
77 routine to support keys of a specific form. This is used in the des and
78 3des routines to generate a key of the correct parity. Update S/MIME
79 code to use new functions and hence generate correct parity DES keys.
80 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
81 valid (weak or incorrect parity).
84 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
85 as looking them up. This is useful when the verified structure may contain
86 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
87 present unless the new PKCS7_NO_CRL flag is asserted.
90 *) Extend ASN1 oid configuration module. It now additionally accepts the
93 shortName = some long name, 1.2.3.4
96 *) Reimplemented the BN_CTX implementation. There is now no more static
97 limitation on the number of variables it can handle nor the depth of the
98 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
99 information can now expand as required, and rather than having a single
100 static array of bignums, BN_CTX now uses a linked-list of such arrays
101 allowing it to expand on demand whilst maintaining the usefulness of
105 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
106 to allow all RSA operations to function using a single BN_CTX.
109 *) Preliminary support for certificate policy evaluation and checking. This
110 is initially intended to pass the tests outlined in "Conformance Testing
111 of Relying Party Client Certificate Path Processing Logic" v1.07.
114 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
115 remained unused and not that useful. A variety of other little bignum
116 tweaks and fixes have also been made continuing on from the audit (see
120 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
121 associated ASN1, EVP and SSL functions and old ASN1 macros.
124 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
125 and this should never fail. So the return value from the use of
126 BN_set_word() (which can fail due to needless expansion) is now deprecated;
127 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
130 *) BN_CTX_get() should return zero-valued bignums, providing the same
131 initialised value as BN_new().
132 [Geoff Thorpe, suggested by Ulf Möller]
134 *) Support for inhibitAnyPolicy certificate extension.
137 *) An audit of the BIGNUM code is underway, for which debugging code is
138 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
139 is considered valid when processing BIGNUMs, and causes execution to
140 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
141 further steps are taken to deliberately pollute unused data in BIGNUM
142 structures to try and expose faulty code further on. For now, openssl will
143 (in its default mode of operation) continue to tolerate the inconsistent
144 forms that it has tolerated in the past, but authors and packagers should
145 consider trying openssl and their own applications when compiled with
146 these debugging symbols defined. It will help highlight potential bugs in
147 their own code, and will improve the test coverage for OpenSSL itself. At
148 some point, these tighter rules will become openssl's default to improve
149 maintainability, though the assert()s and other overheads will remain only
150 in debugging configurations. See bn.h for more details.
151 [Geoff Thorpe, Nils Larsch, Ulf Möller]
153 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
154 that can only be obtained through BN_CTX_new() (which implicitly
155 initialises it). The presence of this function only made it possible
156 to overwrite an existing structure (and cause memory leaks).
159 *) Because of the callback-based approach for implementing LHASH as a
160 template type, lh_insert() adds opaque objects to hash-tables and
161 lh_doall() or lh_doall_arg() are typically used with a destructor callback
162 to clean up those corresponding objects before destroying the hash table
163 (and losing the object pointers). So some over-zealous constifications in
164 LHASH have been relaxed so that lh_insert() does not take (nor store) the
165 objects as "const" and the lh_doall[_arg] callback wrappers are not
166 prototyped to have "const" restrictions on the object pointers they are
167 given (and so aren't required to cast them away any more).
170 *) The tmdiff.h API was so ugly and minimal that our own timing utility
171 (speed) prefers to use its own implementation. The two implementations
172 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
173 its object type properly exposed (MS_TM) instead of casting to/from "char
174 *". This may still change yet if someone realises MS_TM and "ms_time_***"
175 aren't necessarily the greatest nomenclatures - but this is what was used
176 internally to the implementation so I've used that for now.
179 *) Ensure that deprecated functions do not get compiled when
180 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
181 the self-tests were still using deprecated key-generation functions so
182 these have been updated also.
185 *) Reorganise PKCS#7 code to separate the digest location functionality
186 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
187 New function PKCS7_set_digest() to set the digest type for PKCS#7
188 digestedData type. Add additional code to correctly generate the
189 digestedData type and add support for this type in PKCS7 initialization
193 *) New function PKCS7_set0_type_other() this initializes a PKCS7
194 structure of type "other".
197 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
198 sure the loop does correctly stop and breaking ("division by zero")
199 modulus operations are not performed. The (pre-generated) prime
200 table crypto/bn/bn_prime.h was already correct, but it could not be
201 re-generated on some platforms because of the "division by zero"
202 situation in the script.
203 [Ralf S. Engelschall]
205 *) Update support for ECC-based TLS ciphersuites according to
206 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
207 SHA-1 now is only used for "small" curves (where the
208 representation of a field element takes up to 24 bytes); for
209 larger curves, the field element resulting from ECDH is directly
210 used as premaster secret.
211 [Douglas Stebila (Sun Microsystems Laboratories)]
213 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
214 curve secp160r1 to the tests.
215 [Douglas Stebila (Sun Microsystems Laboratories)]
217 *) Add the possibility to load symbols globally with DSO.
218 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
220 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
221 control of the error stack.
224 *) Add support for STORE in ENGINE.
227 *) Add the STORE type. The intention is to provide a common interface
228 to certificate and key stores, be they simple file-based stores, or
229 HSM-type store, or LDAP stores, or...
230 NOTE: The code is currently UNTESTED and isn't really used anywhere.
233 *) Add a generic structure called OPENSSL_ITEM. This can be used to
234 pass a list of arguments to any function as well as provide a way
235 for a function to pass data back to the caller.
238 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
239 works like BUF_strdup() but can be used to duplicate a portion of
240 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
244 *) Add the function sk_find_ex() which works like sk_find(), but will
245 return an index to an element even if an exact match couldn't be
246 found. The index is guaranteed to point at the element where the
247 searched-for key would be inserted to preserve sorting order.
250 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
251 takes an extra flags argument for optional functionality. Currently,
252 the following flags are defined:
254 OBJ_BSEARCH_VALUE_ON_NOMATCH
255 This one gets OBJ_bsearch_ex() to return a pointer to the first
256 element where the comparing function returns a negative or zero
259 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
260 This one gets OBJ_bsearch_ex() to return a pointer to the first
261 element where the comparing function returns zero. This is useful
262 if there are more than one element where the comparing function
266 *) Make it possible to create self-signed certificates with 'openssl ca'
267 in such a way that the self-signed certificate becomes part of the
268 CA database and uses the same mechanisms for serial number generation
269 as all other certificate signing. The new flag '-selfsign' enables
270 this functionality. Adapt CA.sh and CA.pl.in.
273 *) Add functionality to check the public key of a certificate request
274 against a given private. This is useful to check that a certificate
275 request can be signed by that key (self-signing).
278 *) Make it possible to have multiple active certificates with the same
279 subject in the CA index file. This is done only if the keyword
280 'unique_subject' is set to 'no' in the main CA section (default
281 if 'CA_default') of the configuration file. The value is saved
282 with the database itself in a separate index attribute file,
283 named like the index file with '.attr' appended to the name.
286 *) Generate muti valued AVAs using '+' notation in config files for
290 *) Support for nameConstraints certificate extension.
293 *) Support for policyConstraints certificate extension.
296 *) Support for policyMappings certificate extension.
299 *) Make sure the default DSA_METHOD implementation only uses its
300 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
301 and change its own handlers to be NULL so as to remove unnecessary
302 indirection. This lets alternative implementations fallback to the
303 default implementation more easily.
306 *) Support for directoryName in GeneralName related extensions
310 *) Make it possible to link applications using Makefile.shared.
311 Make that possible even when linking against static libraries!
314 *) Support for single pass processing for S/MIME signing. This now
315 means that S/MIME signing can be done from a pipe, in addition
316 cleartext signing (multipart/signed type) is effectively streaming
317 and the signed data does not need to be all held in memory.
319 This is done with a new flag PKCS7_STREAM. When this flag is set
320 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
321 is done after the data is output (and digests calculated) in
325 *) Add full support for -rpath/-R, both in shared libraries and
326 applications, at least on the platforms where it's known how
330 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
331 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
332 will now compute a table of multiples of the generator that
333 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
334 faster (notably in the case of a single point multiplication,
336 [Nils Larsch, Bodo Moeller]
338 *) IPv6 support for certificate extensions. The various extensions
339 which use the IP:a.b.c.d can now take IPv6 addresses using the
340 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
344 *) Added an ENGINE that implements RSA by performing private key
345 exponentiations with the GMP library. The conversions to and from
346 GMP's mpz_t format aren't optimised nor are any montgomery forms
347 cached, and on x86 it appears OpenSSL's own performance has caught up.
348 However there are likely to be other architectures where GMP could
349 provide a boost. This ENGINE is not built in by default, but it can be
350 specified at Configure time and should be accompanied by the necessary
351 linker additions, eg;
352 ./config -DOPENSSL_USE_GMP -lgmp
355 *) "openssl engine" will not display ENGINE/DSO load failure errors when
356 testing availability of engines with "-t" - the old behaviour is
357 produced by increasing the feature's verbosity with "-tt".
360 *) ECDSA routines: under certain error conditions uninitialized BN objects
361 could be freed. Solution: make sure initialization is performed early
362 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
366 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
367 and DH_METHOD (eg. by ENGINE implementations) to override the normal
368 software implementations. For DSA and DH, parameter generation can
369 also be overriden by providing the appropriate method callbacks.
372 *) Change the "progress" mechanism used in key-generation and
373 primality testing to functions that take a new BN_GENCB pointer in
374 place of callback/argument pairs. The new API functions have "_ex"
375 postfixes and the older functions are reimplemented as wrappers for
376 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
377 declarations of the old functions to help (graceful) attempts to
378 migrate to the new functions. Also, the new key-generation API
379 functions operate on a caller-supplied key-structure and return
380 success/failure rather than returning a key or NULL - this is to
381 help make "keygen" another member function of RSA_METHOD etc.
383 Example for using the new callback interface:
385 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
389 BN_GENCB_set(&my_cb, my_callback, my_arg);
391 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
392 /* For the meaning of a, b in calls to my_callback(), see the
393 * documentation of the function that calls the callback.
394 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
395 * my_callback should return 1 if it wants BN_is_prime_ex()
396 * to continue, or 0 to stop.
401 *) Change the ZLIB compression method to be stateful, and make it
402 available to TLS with the number defined in
403 draft-ietf-tls-compression-04.txt.
406 *) Add the ASN.1 structures and functions for CertificatePair, which
407 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
409 CertificatePair ::= SEQUENCE {
410 forward [0] Certificate OPTIONAL,
411 reverse [1] Certificate OPTIONAL,
412 -- at least one of the pair shall be present -- }
414 Also implement the PEM functions to read and write certificate
415 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
417 This needed to be defined, mostly for the sake of the LDAP
418 attribute crossCertificatePair, but may prove useful elsewhere as
422 *) Make it possible to inhibit symlinking of shared libraries in
423 Makefile.shared, for Cygwin's sake.
426 *) Extend the BIGNUM API by creating new macros that behave like
429 void BN_set_sign(BIGNUM *a, int neg);
430 int BN_get_sign(const BIGNUM *a);
432 and avoid the need to access 'a->neg' directly in applications.
433 [Nils Larsch <nla@trustcenter.de>]
435 *) Implement fast modular reduction for pseudo-Mersenne primes
436 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
437 EC_GROUP_new_curve_GFp() will now automatically use this
439 [Nils Larsch <nla@trustcenter.de>]
441 *) Add new lock type (CRYPTO_LOCK_BN).
444 *) Change the ENGINE framework to automatically load engines
445 dynamically from specific directories unless they could be
446 found to already be built in or loaded. Move all the
447 current engines except for the cryptodev one to a new
449 The engines in engines/ are built as shared libraries if
450 the "shared" options was given to ./Configure or ./config.
451 Otherwise, they are inserted in libcrypto.a.
452 /usr/local/ssl/engines is the default directory for dynamic
453 engines, but that can be overriden at configure time through
454 the usual use of --prefix and/or --openssldir, and at run
455 time with the environment variable OPENSSL_ENGINES.
456 [Geoff Thorpe and Richard Levitte]
458 *) Add Makefile.shared, a helper makefile to build shared
459 libraries. Addapt Makefile.org.
462 *) Add version info to Win32 DLLs.
463 [Peter 'Luna' Runestig" <peter@runestig.com>]
465 *) Add new 'medium level' PKCS#12 API. Certificates and keys
466 can be added using this API to created arbitrary PKCS#12
467 files while avoiding the low level API.
469 New options to PKCS12_create(), key or cert can be NULL and
470 will then be omitted from the output file. The encryption
471 algorithm NIDs can be set to -1 for no encryption, the mac
472 iteration count can be set to 0 to omit the mac.
474 Enhance pkcs12 utility by making the -nokeys and -nocerts
475 options work when creating a PKCS#12 file. New option -nomac
476 to omit the mac, NONE can be set for an encryption algorithm.
477 New code is modified to use the enhanced PKCS12_create()
478 instead of the low level API.
481 *) Extend ASN1 encoder to support indefinite length constructed
482 encoding. This can output sequences tags and octet strings in
483 this form. Modify pk7_asn1.c to support indefinite length
484 encoding. This is experimental and needs additional code to
485 be useful, such as an ASN1 bio and some enhanced streaming
488 Extend template encode functionality so that tagging is passed
489 down to the template encoder.
492 *) Let 'openssl req' fail if an argument to '-newkey' is not
493 recognized instead of using RSA as a default.
496 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
497 As these are not official, they are not included in "ALL";
498 the "ECCdraft" ciphersuite group alias can be used to select them.
499 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
501 *) Add ECDH engine support.
502 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
504 *) Add ECDH in new directory crypto/ecdh/.
505 [Douglas Stebila (Sun Microsystems Laboratories)]
507 *) Let BN_rand_range() abort with an error after 100 iterations
508 without success (which indicates a broken PRNG).
511 *) Change BN_mod_sqrt() so that it verifies that the input value
512 is really the square of the return value. (Previously,
513 BN_mod_sqrt would show GIGO behaviour.)
516 *) Add named elliptic curves over binary fields from X9.62, SECG,
517 and WAP/WTLS; add OIDs that were still missing.
519 [Sheueling Chang Shantz and Douglas Stebila
520 (Sun Microsystems Laboratories)]
522 *) Extend the EC library for elliptic curves over binary fields
523 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
526 EC_GF2m_simple_method
530 EC_GROUP_new_curve_GF2m
531 EC_GROUP_set_curve_GF2m
532 EC_GROUP_get_curve_GF2m
533 EC_POINT_set_affine_coordinates_GF2m
534 EC_POINT_get_affine_coordinates_GF2m
535 EC_POINT_set_compressed_coordinates_GF2m
537 Point compression for binary fields is disabled by default for
538 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
541 As binary polynomials are represented as BIGNUMs, various members
542 of the EC_GROUP and EC_POINT data structures can be shared
543 between the implementations for prime fields and binary fields;
544 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
545 are essentially identical to their ..._GFp counterparts.
546 (For simplicity, the '..._GFp' prefix has been dropped from
547 various internal method names.)
549 An internal 'field_div' method (similar to 'field_mul' and
550 'field_sqr') has been added; this is used only for binary fields.
552 [Sheueling Chang Shantz and Douglas Stebila
553 (Sun Microsystems Laboratories)]
555 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
556 through methods ('mul', 'precompute_mult').
558 The generic implementations (now internally called 'ec_wNAF_mul'
559 and 'ec_wNAF_precomputed_mult') remain the default if these
560 methods are undefined.
562 [Sheueling Chang Shantz and Douglas Stebila
563 (Sun Microsystems Laboratories)]
565 *) New function EC_GROUP_get_degree, which is defined through
566 EC_METHOD. For curves over prime fields, this returns the bit
567 length of the modulus.
569 [Sheueling Chang Shantz and Douglas Stebila
570 (Sun Microsystems Laboratories)]
572 *) New functions EC_GROUP_dup, EC_POINT_dup.
573 (These simply call ..._new and ..._copy).
575 [Sheueling Chang Shantz and Douglas Stebila
576 (Sun Microsystems Laboratories)]
578 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
579 Polynomials are represented as BIGNUMs (where the sign bit is not
580 used) in the following functions [macros]:
583 BN_GF2m_sub [= BN_GF2m_add]
584 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
585 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
586 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
588 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
589 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
590 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
591 BN_GF2m_cmp [= BN_ucmp]
593 (Note that only the 'mod' functions are actually for fields GF(2^m).
594 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
596 For some functions, an the irreducible polynomial defining a
597 field can be given as an 'unsigned int[]' with strictly
598 decreasing elements giving the indices of those bits that are set;
599 i.e., p[] represents the polynomial
600 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
602 p[0] > p[1] > ... > p[k] = 0.
603 This applies to the following functions:
608 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
609 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
612 BN_GF2m_mod_solve_quad_arr
616 Conversion can be performed by the following functions:
621 bntest.c has additional tests for binary polynomial arithmetic.
623 Two implementations for BN_GF2m_mod_div() are available.
624 The default algorithm simply uses BN_GF2m_mod_inv() and
625 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
626 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
627 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
629 [Sheueling Chang Shantz and Douglas Stebila
630 (Sun Microsystems Laboratories)]
632 *) Add new error code 'ERR_R_DISABLED' that can be used when some
633 functionality is disabled at compile-time.
634 [Douglas Stebila <douglas.stebila@sun.com>]
636 *) Change default behaviour of 'openssl asn1parse' so that more
637 information is visible when viewing, e.g., a certificate:
639 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
640 mode the content of non-printable OCTET STRINGs is output in a
641 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
642 avoid the appearance of a printable string.
643 [Nils Larsch <nla@trustcenter.de>]
645 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
647 EC_GROUP_set_asn1_flag()
648 EC_GROUP_get_asn1_flag()
649 EC_GROUP_set_point_conversion_form()
650 EC_GROUP_get_point_conversion_form()
651 These control ASN1 encoding details:
652 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
653 has been set to OPENSSL_EC_NAMED_CURVE.
654 - Points are encoded in uncompressed form by default; options for
655 asn1_for are as for point2oct, namely
656 POINT_CONVERSION_COMPRESSED
657 POINT_CONVERSION_UNCOMPRESSED
658 POINT_CONVERSION_HYBRID
660 Also add 'seed' and 'seed_len' members to EC_GROUP with access
664 EC_GROUP_get_seed_len()
665 This is used only for ASN1 purposes (so far).
666 [Nils Larsch <nla@trustcenter.de>]
668 *) Add 'field_type' member to EC_METHOD, which holds the NID
669 of the appropriate field type OID. The new function
670 EC_METHOD_get_field_type() returns this value.
671 [Nils Larsch <nla@trustcenter.de>]
678 providing useful interfaces to EC_POINT_point2oct() and
679 EC_POINT_oct2point().
680 [Nils Larsch <nla@trustcenter.de>]
682 *) Change internals of the EC library so that the functions
683 EC_GROUP_set_generator()
684 EC_GROUP_get_generator()
686 EC_GROUP_get_cofactor()
687 are implemented directly in crypto/ec/ec_lib.c and not dispatched
688 to methods, which would lead to unnecessary code duplication when
689 adding different types of curves.
690 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
692 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
693 arithmetic, and such that modified wNAFs are generated
694 (which avoid length expansion in many cases).
697 *) Add a function EC_GROUP_check_discriminant() (defined via
698 EC_METHOD) that verifies that the curve discriminant is non-zero.
700 Add a function EC_GROUP_check() that makes some sanity tests
701 on a EC_GROUP, its generator and order. This includes
702 EC_GROUP_check_discriminant().
703 [Nils Larsch <nla@trustcenter.de>]
705 *) Add ECDSA in new directory crypto/ecdsa/.
707 Add applications 'openssl ecparam' and 'openssl ecdsa'
708 (these are based on 'openssl dsaparam' and 'openssl dsa').
710 ECDSA support is also included in various other files across the
711 library. Most notably,
712 - 'openssl req' now has a '-newkey ecdsa:file' option;
713 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
714 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
715 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
716 them suitable for ECDSA where domain parameters must be
717 extracted before the specific public key;
718 - ECDSA engine support has been added.
719 [Nils Larsch <nla@trustcenter.de>]
721 *) Include some named elliptic curves, and add OIDs from X9.62,
722 SECG, and WAP/WTLS. Each curve can be obtained from the new
724 EC_GROUP_new_by_nid(),
725 and the list of available named curves can be obtained with
726 EC_get_builtin_curves().
727 Also add a 'curve_name' member to EC_GROUP objects, which can be
731 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
733 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
734 was actually never needed) and in BN_mul(). The removal in BN_mul()
735 required a small change in bn_mul_part_recursive() and the addition
736 of the functions bn_cmp_part_words(), bn_sub_part_words() and
737 bn_add_part_words(), which do the same thing as bn_cmp_words(),
738 bn_sub_words() and bn_add_words() except they take arrays with
742 Changes between 0.9.7d and 0.9.7e [XX xxx XXXX]
744 *) Avoid a race condition when CRLs are checked in a multi threaded
745 environment. This would happen due to the reordering of the revoked
746 entries during signature checking and serial number lookup. Now the
747 encoding is cached and the serial number sort performed under a lock.
748 Add new STACK function sk_is_sorted().
751 *) Add Delta CRL to the extension code.
754 *) Various fixes to s3_pkt.c so alerts are sent properly.
755 [David Holmes <d.holmes@f5.com>]
757 *) Reduce the chances of duplicate issuer name and serial numbers (in
758 violation of RFC3280) using the OpenSSL certificate creation utilities.
759 This is done by creating a random 64 bit value for the initial serial
760 number when a serial number file is created or when a self signed
761 certificate is created using 'openssl req -x509'. The initial serial
762 number file is created using 'openssl x509 -next_serial' in CA.pl
763 rather than being initialized to 1.
766 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
768 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
769 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
770 [Joe Orton, Steve Henson]
772 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
774 [Joe Orton, Steve Henson]
776 *) Make it possible to have multiple active certificates with the same
777 subject in the CA index file. This is done only if the keyword
778 'unique_subject' is set to 'no' in the main CA section (default
779 if 'CA_default') of the configuration file. The value is saved
780 with the database itself in a separate index attribute file,
781 named like the index file with '.attr' appended to the name.
784 *) X509 verify fixes. Disable broken certificate workarounds when
785 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
786 keyUsage extension present. Don't accept CRLs with unhandled critical
787 extensions: since verify currently doesn't process CRL extensions this
788 rejects a CRL with *any* critical extensions. Add new verify error codes
792 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
793 A clarification of RFC2560 will require the use of OCTET STRINGs and
794 some implementations cannot handle the current raw format. Since OpenSSL
795 copies and compares OCSP nonces as opaque blobs without any attempt at
796 parsing them this should not create any compatibility issues.
799 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
800 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
801 this HMAC (and other) operations are several times slower than OpenSSL
805 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
806 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
808 *) Use the correct content when signing type "other".
811 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
813 *) Fix various bugs revealed by running the NISCC test suite:
815 Stop out of bounds reads in the ASN1 code when presented with
816 invalid tags (CAN-2003-0543 and CAN-2003-0544).
818 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
820 If verify callback ignores invalid public key errors don't try to check
821 certificate signature with the NULL public key.
825 *) New -ignore_err option in ocsp application to stop the server
826 exiting on the first error in a request.
829 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
830 if the server requested one: as stated in TLS 1.0 and SSL 3.0
834 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
835 extra data after the compression methods not only for TLS 1.0
836 but also for SSL 3.0 (as required by the specification).
837 [Bodo Moeller; problem pointed out by Matthias Loepfe]
839 *) Change X509_certificate_type() to mark the key as exported/exportable
840 when it's 512 *bits* long, not 512 bytes.
843 *) Change AES_cbc_encrypt() so it outputs exact multiple of
844 blocks during encryption.
847 *) Various fixes to base64 BIO and non blocking I/O. On write
848 flushes were not handled properly if the BIO retried. On read
849 data was not being buffered properly and had various logic bugs.
850 This also affects blocking I/O when the data being decoded is a
854 *) Various S/MIME bugfixes and compatibility changes:
855 output correct application/pkcs7 MIME type if
856 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
857 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
858 of files as .eml work). Correctly handle very long lines in MIME
862 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
864 *) Countermeasure against the Klima-Pokorny-Rosa extension of
865 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
866 a protocol version number mismatch like a decryption error
867 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
870 *) Turn on RSA blinding by default in the default implementation
871 to avoid a timing attack. Applications that don't want it can call
872 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
873 They would be ill-advised to do so in most cases.
874 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
876 *) Change RSA blinding code so that it works when the PRNG is not
877 seeded (in this case, the secret RSA exponent is abused as
878 an unpredictable seed -- if it is not unpredictable, there
879 is no point in blinding anyway). Make RSA blinding thread-safe
880 by remembering the creator's thread ID in rsa->blinding and
881 having all other threads use local one-time blinding factors
882 (this requires more computation than sharing rsa->blinding, but
883 avoids excessive locking; and if an RSA object is not shared
884 between threads, blinding will still be very fast).
887 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
888 ENGINE as defaults for all supported algorithms irrespective of
889 the 'flags' parameter. 'flags' is now honoured, so applications
890 should make sure they are passing it correctly.
893 *) Target "mingw" now allows native Windows code to be generated in
894 the Cygwin environment as well as with the MinGW compiler.
897 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
899 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
900 via timing by performing a MAC computation even if incorrrect
901 block cipher padding has been found. This is a countermeasure
902 against active attacks where the attacker has to distinguish
903 between bad padding and a MAC verification error. (CAN-2003-0078)
905 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
906 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
907 Martin Vuagnoux (EPFL, Ilion)]
909 *) Make the no-err option work as intended. The intention with no-err
910 is not to have the whole error stack handling routines removed from
911 libcrypto, it's only intended to remove all the function name and
912 reason texts, thereby removing some of the footprint that may not
913 be interesting if those errors aren't displayed anyway.
915 NOTE: it's still possible for any application or module to have it's
916 own set of error texts inserted. The routines are there, just not
917 used by default when no-err is given.
920 *) Add support for FreeBSD on IA64.
921 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
923 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
924 Kerberos function mit_des_cbc_cksum(). Before this change,
925 the value returned by DES_cbc_cksum() was like the one from
926 mit_des_cbc_cksum(), except the bytes were swapped.
927 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
929 *) Allow an application to disable the automatic SSL chain building.
930 Before this a rather primitive chain build was always performed in
931 ssl3_output_cert_chain(): an application had no way to send the
932 correct chain if the automatic operation produced an incorrect result.
934 Now the chain builder is disabled if either:
936 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
938 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
940 The reasoning behind this is that an application would not want the
941 auto chain building to take place if extra chain certificates are
942 present and it might also want a means of sending no additional
943 certificates (for example the chain has two certificates and the
947 *) Add the possibility to build without the ENGINE framework.
948 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
950 *) Under Win32 gmtime() can return NULL: check return value in
951 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
954 *) DSA routines: under certain error conditions uninitialized BN objects
955 could be freed. Solution: make sure initialization is performed early
956 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
957 Nils Larsch <nla@trustcenter.de> via PR#459)
960 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
961 checked on reconnect on the client side, therefore session resumption
962 could still fail with a "ssl session id is different" error. This
963 behaviour is masked when SSL_OP_ALL is used due to
964 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
965 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
969 *) IA-32 assembler support enhancements: unified ELF targets, support
970 for SCO/Caldera platforms, fix for Cygwin shared build.
973 *) Add support for FreeBSD on sparc64. As a consequence, support for
974 FreeBSD on non-x86 processors is separate from x86 processors on
975 the config script, much like the NetBSD support.
976 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
978 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
980 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
983 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
984 code (06) was taken as the first octet of the session ID and the last
985 octet was ignored consequently. As a result SSLv2 client side session
986 caching could not have worked due to the session ID mismatch between
988 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
992 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
993 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
997 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
998 seems that in spite of existing for more than a year, many application
999 author have done nothing to provide the necessary callbacks, which
1000 means that this particular engine will not work properly anywhere.
1001 This is a very unfortunate situation which forces us, in the name
1002 of usability, to give the hw_ncipher.c a static lock, which is part
1004 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1005 appear in 0.9.8 or later. We EXPECT application authors to have
1006 dealt properly with this when 0.9.8 is released (unless we actually
1007 make such changes in the libcrypto locking code that changes will
1008 have to be made anyway).
1011 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1012 octets have been read, EOF or an error occurs. Without this change
1013 some truncated ASN1 structures will not produce an error.
1016 *) Disable Heimdal support, since it hasn't been fully implemented.
1017 Still give the possibility to force the use of Heimdal, but with
1018 warnings and a request that patches get sent to openssl-dev.
1021 *) Add the VC-CE target, introduce the WINCE sysname, and add
1022 INSTALL.WCE and appropriate conditionals to make it build.
1023 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1025 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1026 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1027 edit numbers of the version.
1028 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1030 *) Introduce safe string copy and catenation functions
1031 (BUF_strlcpy() and BUF_strlcat()).
1032 [Ben Laurie (CHATS) and Richard Levitte]
1034 *) Avoid using fixed-size buffers for one-line DNs.
1035 [Ben Laurie (CHATS)]
1037 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1038 resizing buffers containing secrets, and use where appropriate.
1039 [Ben Laurie (CHATS)]
1041 *) Avoid using fixed size buffers for configuration file location.
1042 [Ben Laurie (CHATS)]
1044 *) Avoid filename truncation for various CA files.
1045 [Ben Laurie (CHATS)]
1047 *) Use sizeof in preference to magic numbers.
1048 [Ben Laurie (CHATS)]
1050 *) Avoid filename truncation in cert requests.
1051 [Ben Laurie (CHATS)]
1053 *) Add assertions to check for (supposedly impossible) buffer
1055 [Ben Laurie (CHATS)]
1057 *) Don't cache truncated DNS entries in the local cache (this could
1058 potentially lead to a spoofing attack).
1059 [Ben Laurie (CHATS)]
1061 *) Fix various buffers to be large enough for hex/decimal
1062 representations in a platform independent manner.
1063 [Ben Laurie (CHATS)]
1065 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1066 resizing buffers containing secrets, and use where appropriate.
1067 [Ben Laurie (CHATS)]
1069 *) Add BIO_indent() to avoid much slightly worrying code to do
1071 [Ben Laurie (CHATS)]
1073 *) Convert sprintf()/BIO_puts() to BIO_printf().
1074 [Ben Laurie (CHATS)]
1076 *) buffer_gets() could terminate with the buffer only half
1078 [Ben Laurie (CHATS)]
1080 *) Add assertions to prevent user-supplied crypto functions from
1081 overflowing internal buffers by having large block sizes, etc.
1082 [Ben Laurie (CHATS)]
1084 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1086 [Ben Laurie (CHATS)]
1088 *) Eliminate unused copy of key in RC4.
1089 [Ben Laurie (CHATS)]
1091 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1092 [Ben Laurie (CHATS)]
1094 *) Fix off-by-one error in EGD path.
1095 [Ben Laurie (CHATS)]
1097 *) If RANDFILE path is too long, ignore instead of truncating.
1098 [Ben Laurie (CHATS)]
1100 *) Eliminate unused and incorrectly sized X.509 structure
1102 [Ben Laurie (CHATS)]
1104 *) Eliminate unused and dangerous function knumber().
1105 [Ben Laurie (CHATS)]
1107 *) Eliminate unused and dangerous structure, KSSL_ERR.
1108 [Ben Laurie (CHATS)]
1110 *) Protect against overlong session ID context length in an encoded
1111 session object. Since these are local, this does not appear to be
1113 [Ben Laurie (CHATS)]
1115 *) Change from security patch (see 0.9.6e below) that did not affect
1116 the 0.9.6 release series:
1118 Remote buffer overflow in SSL3 protocol - an attacker could
1119 supply an oversized master key in Kerberos-enabled versions.
1121 [Ben Laurie (CHATS)]
1123 *) Change the SSL kerb5 codes to match RFC 2712.
1126 *) Make -nameopt work fully for req and add -reqopt switch.
1127 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1129 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1130 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1132 *) Make sure tests can be performed even if the corresponding algorithms
1133 have been removed entirely. This was also the last step to make
1134 OpenSSL compilable with DJGPP under all reasonable conditions.
1135 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1137 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1138 to allow version independent disabling of normally unselected ciphers,
1139 which may be activated as a side-effect of selecting a single cipher.
1141 (E.g., cipher list string "RSA" enables ciphersuites that are left
1142 out of "ALL" because they do not provide symmetric encryption.
1143 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1144 [Lutz Jaenicke, Bodo Moeller]
1146 *) Add appropriate support for separate platform-dependent build
1147 directories. The recommended way to make a platform-dependent
1148 build directory is the following (tested on Linux), maybe with
1151 # Place yourself outside of the OpenSSL source tree. In
1152 # this example, the environment variable OPENSSL_SOURCE
1153 # is assumed to contain the absolute OpenSSL source directory.
1154 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1155 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1156 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1157 mkdir -p `dirname $F`
1158 ln -s $OPENSSL_SOURCE/$F $F
1161 To be absolutely sure not to disturb the source tree, a "make clean"
1162 is a good thing. If it isn't successfull, don't worry about it,
1163 it probably means the source directory is very clean.
1166 *) Make sure any ENGINE control commands make local copies of string
1167 pointers passed to them whenever necessary. Otherwise it is possible
1168 the caller may have overwritten (or deallocated) the original string
1169 data when a later ENGINE operation tries to use the stored values.
1170 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1172 *) Improve diagnostics in file reading and command-line digests.
1173 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1175 *) Add AES modes CFB and OFB to the object database. Correct an
1176 error in AES-CFB decryption.
1179 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1180 allows existing EVP_CIPHER_CTX structures to be reused after
1181 calling EVP_*Final(). This behaviour is used by encryption
1182 BIOs and some applications. This has the side effect that
1183 applications must explicitly clean up cipher contexts with
1184 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1187 *) Check the values of dna and dnb in bn_mul_recursive before calling
1188 bn_mul_comba (a non zero value means the a or b arrays do not contain
1189 n2 elements) and fallback to bn_mul_normal if either is not zero.
1192 *) Fix escaping of non-ASCII characters when using the -subj option
1193 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1196 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1197 form for "surname", serialNumber has no short form.
1198 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1199 therefore remove "mail" short name for "internet 7".
1200 The OID for unique identifiers in X509 certificates is
1201 x500UniqueIdentifier, not uniqueIdentifier.
1202 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1205 *) Add an "init" command to the ENGINE config module and auto initialize
1206 ENGINEs. Without any "init" command the ENGINE will be initialized
1207 after all ctrl commands have been executed on it. If init=1 the
1208 ENGINE is initailized at that point (ctrls before that point are run
1209 on the uninitialized ENGINE and after on the initialized one). If
1210 init=0 then the ENGINE will not be iniatialized at all.
1213 *) Fix the 'app_verify_callback' interface so that the user-defined
1214 argument is actually passed to the callback: In the
1215 SSL_CTX_set_cert_verify_callback() prototype, the callback
1216 declaration has been changed from
1219 int (*cb)(X509_STORE_CTX *,void *);
1220 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1221 i=s->ctx->app_verify_callback(&ctx)
1222 has been changed into
1223 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1225 To update applications using SSL_CTX_set_cert_verify_callback(),
1226 a dummy argument can be added to their callback functions.
1227 [D. K. Smetters <smetters@parc.xerox.com>]
1229 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1230 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1232 *) Add and OPENSSL_LOAD_CONF define which will cause
1233 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1234 This allows older applications to transparently support certain
1235 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1236 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1237 load the config file and OPENSSL_add_all_algorithms_conf() which will
1238 always load it have also been added.
1241 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1242 Adjust NIDs and EVP layer.
1243 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1245 *) Config modules support in openssl utility.
1247 Most commands now load modules from the config file,
1248 though in a few (such as version) this isn't done
1249 because it couldn't be used for anything.
1251 In the case of ca and req the config file used is
1252 the same as the utility itself: that is the -config
1253 command line option can be used to specify an
1257 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1258 use "openssl_conf" if filename is NULL use default openssl config file.
1261 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1262 config section name. Add a new flag to tolerate a missing config file
1263 and move code to CONF_modules_load_file().
1266 *) Support for crypto accelerator cards from Accelerated Encryption
1267 Processing, www.aep.ie. (Use engine 'aep')
1268 The support was copied from 0.9.6c [engine] and adapted/corrected
1269 to work with the new engine framework.
1270 [AEP Inc. and Richard Levitte]
1272 *) Support for SureWare crypto accelerator cards from Baltimore
1273 Technologies. (Use engine 'sureware')
1274 The support was copied from 0.9.6c [engine] and adapted
1275 to work with the new engine framework.
1278 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1279 make the newer ENGINE framework commands for the CHIL engine work.
1280 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1282 *) Make it possible to produce shared libraries on ReliantUNIX.
1283 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1285 *) Add the configuration target debug-linux-ppro.
1286 Make 'openssl rsa' use the general key loading routines
1287 implemented in apps.c, and make those routines able to
1288 handle the key format FORMAT_NETSCAPE and the variant
1290 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1292 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1293 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1295 *) Add -keyform to rsautl, and document -engine.
1296 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1298 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1299 BIO_R_NO_SUCH_FILE error code rather than the generic
1300 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1303 *) Add new functions
1305 ERR_peek_last_error_line
1306 ERR_peek_last_error_line_data.
1307 These are similar to
1310 ERR_peek_error_line_data,
1311 but report on the latest error recorded rather than the first one
1312 still in the error queue.
1313 [Ben Laurie, Bodo Moeller]
1315 *) default_algorithms option in ENGINE config module. This allows things
1317 default_algorithms = ALL
1318 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1321 *) Prelminary ENGINE config module.
1324 *) New experimental application configuration code.
1327 *) Change the AES code to follow the same name structure as all other
1328 symmetric ciphers, and behave the same way. Move everything to
1329 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1330 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1332 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1333 [Ben Laurie and Theo de Raadt]
1335 *) Add option to output public keys in req command.
1336 [Massimiliano Pala madwolf@openca.org]
1338 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1339 (up to about 10% better than before for P-192 and P-224).
1342 *) New functions/macros
1344 SSL_CTX_set_msg_callback(ctx, cb)
1345 SSL_CTX_set_msg_callback_arg(ctx, arg)
1346 SSL_set_msg_callback(ssl, cb)
1347 SSL_set_msg_callback_arg(ssl, arg)
1349 to request calling a callback function
1351 void cb(int write_p, int version, int content_type,
1352 const void *buf, size_t len, SSL *ssl, void *arg)
1354 whenever a protocol message has been completely received
1355 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1356 protocol version according to which the SSL library interprets
1357 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1358 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1359 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1360 specification (change_cipher_spec(20), alert(21), handshake(22)).
1361 'buf' and 'len' point to the actual message, 'ssl' to the
1362 SSL object, and 'arg' is the application-defined value set by
1363 SSL[_CTX]_set_msg_callback_arg().
1365 'openssl s_client' and 'openssl s_server' have new '-msg' options
1366 to enable a callback that displays all protocol messages.
1369 *) Change the shared library support so shared libraries are built as
1370 soon as the corresponding static library is finished, and thereby get
1371 openssl and the test programs linked against the shared library.
1372 This still only happens when the keyword "shard" has been given to
1373 the configuration scripts.
1375 NOTE: shared library support is still an experimental thing, and
1376 backward binary compatibility is still not guaranteed.
1377 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1379 *) Add support for Subject Information Access extension.
1380 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1382 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1383 additional bytes when new memory had to be allocated, not just
1384 when reusing an existing buffer.
1387 *) New command line and configuration option 'utf8' for the req command.
1388 This allows field values to be specified as UTF8 strings.
1391 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1392 runs for the former and machine-readable output for the latter.
1395 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1396 of the e-mail address in the DN (i.e., it will go into a certificate
1397 extension only). The new configuration file option 'email_in_dn = no'
1398 has the same effect.
1399 [Massimiliano Pala madwolf@openca.org]
1401 *) Change all functions with names starting with des_ to be starting
1402 with DES_ instead. Add wrappers that are compatible with libdes,
1403 but are named _ossl_old_des_*. Finally, add macros that map the
1404 des_* symbols to the corresponding _ossl_old_des_* if libdes
1405 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1406 desired, the des_* symbols will be mapped to DES_*, with one
1409 Since we provide two compatibility mappings, the user needs to
1410 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1411 compatibility is desired. The default (i.e., when that macro
1412 isn't defined) is OpenSSL 0.9.6c compatibility.
1414 There are also macros that enable and disable the support of old
1415 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1416 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1417 are defined, the default will apply: to support the old des routines.
1419 In either case, one must include openssl/des.h to get the correct
1420 definitions. Do not try to just include openssl/des_old.h, that
1423 NOTE: This is a major break of an old API into a new one. Software
1424 authors are encouraged to switch to the DES_ style functions. Some
1425 time in the future, des_old.h and the libdes compatibility functions
1426 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1427 default), and then completely removed.
1430 *) Test for certificates which contain unsupported critical extensions.
1431 If such a certificate is found during a verify operation it is
1432 rejected by default: this behaviour can be overridden by either
1433 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1434 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1435 X509_supported_extension() has also been added which returns 1 if a
1436 particular extension is supported.
1439 *) Modify the behaviour of EVP cipher functions in similar way to digests
1440 to retain compatibility with existing code.
1443 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1444 compatibility with existing code. In particular the 'ctx' parameter does
1445 not have to be to be initialized before the call to EVP_DigestInit() and
1446 it is tidied up after a call to EVP_DigestFinal(). New function
1447 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1448 EVP_MD_CTX_copy() changed to not require the destination to be
1449 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1450 requires the destination to be valid.
1452 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1453 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1456 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1457 so that complete 'Handshake' protocol structures are kept in memory
1458 instead of overwriting 'msg_type' and 'length' with 'body' data.
1461 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1462 [Massimo Santin via Richard Levitte]
1464 *) Major restructuring to the underlying ENGINE code. This includes
1465 reduction of linker bloat, separation of pure "ENGINE" manipulation
1466 (initialisation, etc) from functionality dealing with implementations
1467 of specific crypto iterfaces. This change also introduces integrated
1468 support for symmetric ciphers and digest implementations - so ENGINEs
1469 can now accelerate these by providing EVP_CIPHER and EVP_MD
1470 implementations of their own. This is detailed in crypto/engine/README
1471 as it couldn't be adequately described here. However, there are a few
1472 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1473 were changed in the original introduction of ENGINE code have now
1474 reverted back - the hooking from this code to ENGINE is now a good
1475 deal more passive and at run-time, operations deal directly with
1476 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1477 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1478 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1479 they were not being used by the framework as there is no concept of a
1480 BIGNUM_METHOD and they could not be generalised to the new
1481 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1482 ENGINE_cpy() has been removed as it cannot be consistently defined in
1486 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1489 *) Change mkdef.pl to sort symbols that get the same entry number,
1490 and make sure the automatically generated functions ERR_load_*
1491 become part of libeay.num as well.
1494 *) New function SSL_renegotiate_pending(). This returns true once
1495 renegotiation has been requested (either SSL_renegotiate() call
1496 or HelloRequest/ClientHello receveived from the peer) and becomes
1497 false once a handshake has been completed.
1498 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1499 sends a HelloRequest, but does not ensure that a handshake takes
1500 place. SSL_renegotiate_pending() is useful for checking if the
1501 client has followed the request.)
1504 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1505 By default, clients may request session resumption even during
1506 renegotiation (if session ID contexts permit); with this option,
1507 session resumption is possible only in the first handshake.
1509 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1510 more bits available for options that should not be part of
1511 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1514 *) Add some demos for certificate and certificate request creation.
1517 *) Make maximum certificate chain size accepted from the peer application
1518 settable (SSL*_get/set_max_cert_list()), as proposed by
1519 "Douglas E. Engert" <deengert@anl.gov>.
1522 *) Add support for shared libraries for Unixware-7
1523 (Boyd Lynn Gerber <gerberb@zenez.com>).
1526 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1527 be done prior to destruction. Use this to unload error strings from
1528 ENGINEs that load their own error strings. NB: This adds two new API
1529 functions to "get" and "set" this destroy handler in an ENGINE.
1532 *) Alter all existing ENGINE implementations (except "openssl" and
1533 "openbsd") to dynamically instantiate their own error strings. This
1534 makes them more flexible to be built both as statically-linked ENGINEs
1535 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1536 Also, add stub code to each that makes building them as self-contained
1537 shared-libraries easier (see README.ENGINE).
1540 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1541 implementations into applications that are completely implemented in
1542 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1543 commands that can be used to configure what shared-library to load and
1544 to control aspects of the way it is handled. Also, made an update to
1545 the README.ENGINE file that brings its information up-to-date and
1546 provides some information and instructions on the "dynamic" ENGINE
1547 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1550 *) Make it possible to unload ranges of ERR strings with a new
1551 "ERR_unload_strings" function.
1554 *) Add a copy() function to EVP_MD.
1557 *) Make EVP_MD routines take a context pointer instead of just the
1558 md_data void pointer.
1561 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1562 that the digest can only process a single chunk of data
1563 (typically because it is provided by a piece of
1564 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1565 is only going to provide a single chunk of data, and hence the
1566 framework needn't accumulate the data for oneshot drivers.
1569 *) As with "ERR", make it possible to replace the underlying "ex_data"
1570 functions. This change also alters the storage and management of global
1571 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1572 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1573 index counters. The API functions that use this state have been changed
1574 to take a "class_index" rather than pointers to the class's local STACK
1575 and counter, and there is now an API function to dynamically create new
1576 classes. This centralisation allows us to (a) plug a lot of the
1577 thread-safety problems that existed, and (b) makes it possible to clean
1578 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1579 such data would previously have always leaked in application code and
1580 workarounds were in place to make the memory debugging turn a blind eye
1581 to it. Application code that doesn't use this new function will still
1582 leak as before, but their memory debugging output will announce it now
1583 rather than letting it slide.
1585 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1586 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1587 has a return value to indicate success or failure.
1590 *) Make it possible to replace the underlying "ERR" functions such that the
1591 global state (2 LHASH tables and 2 locks) is only used by the "default"
1592 implementation. This change also adds two functions to "get" and "set"
1593 the implementation prior to it being automatically set the first time
1594 any other ERR function takes place. Ie. an application can call "get",
1595 pass the return value to a module it has just loaded, and that module
1596 can call its own "set" function using that value. This means the
1597 module's "ERR" operations will use (and modify) the error state in the
1598 application and not in its own statically linked copy of OpenSSL code.
1601 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1602 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1603 the operation, and provides a more encapsulated way for external code
1604 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1605 to use these functions rather than manually incrementing the counts.
1607 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1610 *) Add EVP test program.
1613 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1616 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1617 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1618 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1619 These allow a CRL to be built without having to access X509_CRL fields
1620 directly. Modify 'ca' application to use new functions.
1623 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1624 bug workarounds. Rollback attack detection is a security feature.
1625 The problem will only arise on OpenSSL servers when TLSv1 is not
1626 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1627 Software authors not wanting to support TLSv1 will have special reasons
1628 for their choice and can explicitly enable this option.
1629 [Bodo Moeller, Lutz Jaenicke]
1631 *) Rationalise EVP so it can be extended: don't include a union of
1632 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1633 (similar to those existing for EVP_CIPHER_CTX).
1638 EVP_MD_CTX_init(&md); /* new function call */
1639 EVP_DigestInit(&md, EVP_sha1());
1640 EVP_DigestUpdate(&md, in, len);
1641 EVP_DigestFinal(&md, out, NULL);
1642 EVP_MD_CTX_cleanup(&md); /* new function call */
1646 *) Make DES key schedule conform to the usual scheme, as well as
1647 correcting its structure. This means that calls to DES functions
1648 now have to pass a pointer to a des_key_schedule instead of a
1649 plain des_key_schedule (which was actually always a pointer
1652 des_key_schedule ks;
1654 des_set_key_checked(..., &ks);
1655 des_ncbc_encrypt(..., &ks, ...);
1657 (Note that a later change renames 'des_...' into 'DES_...'.)
1660 *) Initial reduction of linker bloat: the use of some functions, such as
1661 PEM causes large amounts of unused functions to be linked in due to
1662 poor organisation. For example pem_all.c contains every PEM function
1663 which has a knock on effect of linking in large amounts of (unused)
1664 ASN1 code. Grouping together similar functions and splitting unrelated
1665 functions prevents this.
1668 *) Cleanup of EVP macros.
1671 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1672 correct _ecb suffix.
1675 *) Add initial OCSP responder support to ocsp application. The
1676 revocation information is handled using the text based index
1677 use by the ca application. The responder can either handle
1678 requests generated internally, supplied in files (for example
1679 via a CGI script) or using an internal minimal server.
1682 *) Add configuration choices to get zlib compression for TLS.
1685 *) Changes to Kerberos SSL for RFC 2712 compliance:
1686 1. Implemented real KerberosWrapper, instead of just using
1687 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1688 2. Implemented optional authenticator field of KerberosWrapper.
1690 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1691 and authenticator structs; see crypto/krb5/.
1693 Generalized Kerberos calls to support multiple Kerberos libraries.
1694 [Vern Staats <staatsvr@asc.hpc.mil>,
1695 Jeffrey Altman <jaltman@columbia.edu>
1696 via Richard Levitte]
1698 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1699 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1700 values for each of the key sizes rather than having just
1701 parameters (and 'speed' generating keys each time).
1704 *) Speed up EVP routines.
1707 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1708 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1709 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1710 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1712 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1713 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1714 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1717 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1719 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1722 *) Added the OS2-EMX target.
1723 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1725 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1726 to support NCONF routines in extension code. New function CONF_set_nconf()
1727 to allow functions which take an NCONF to also handle the old LHASH
1728 structure: this means that the old CONF compatible routines can be
1729 retained (in particular wrt extensions) without having to duplicate the
1730 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1733 *) Enhance the general user interface with mechanisms for inner control
1734 and with possibilities to have yes/no kind of prompts.
1737 *) Change all calls to low level digest routines in the library and
1738 applications to use EVP. Add missing calls to HMAC_cleanup() and
1739 don't assume HMAC_CTX can be copied using memcpy().
1740 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1742 *) Add the possibility to control engines through control names but with
1743 arbitrary arguments instead of just a string.
1744 Change the key loaders to take a UI_METHOD instead of a callback
1745 function pointer. NOTE: this breaks binary compatibility with earlier
1746 versions of OpenSSL [engine].
1747 Adapt the nCipher code for these new conditions and add a card insertion
1751 *) Enhance the general user interface with mechanisms to better support
1752 dialog box interfaces, application-defined prompts, the possibility
1753 to use defaults (for example default passwords from somewhere else)
1754 and interrupts/cancellations.
1757 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1758 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1761 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1762 tidy up some unnecessarily weird code in 'sk_new()').
1763 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1765 *) Change the key loading routines for ENGINEs to use the same kind
1766 callback (pem_password_cb) as all other routines that need this
1770 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1771 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1772 than this minimum value is recommended.
1775 *) New random seeder for OpenVMS, using the system process statistics
1776 that are easily reachable.
1779 *) Windows apparently can't transparently handle global
1780 variables defined in DLLs. Initialisations such as:
1782 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1784 wont compile. This is used by the any applications that need to
1785 declare their own ASN1 modules. This was fixed by adding the option
1786 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1787 needed for static libraries under Win32.
1790 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1791 setting of purpose and trust fields. New X509_STORE trust and
1792 purpose functions and tidy up setting in other SSL functions.
1795 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1796 structure. These are inherited by X509_STORE_CTX when it is
1797 initialised. This allows various defaults to be set in the
1798 X509_STORE structure (such as flags for CRL checking and custom
1799 purpose or trust settings) for functions which only use X509_STORE_CTX
1800 internally such as S/MIME.
1802 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1803 trust settings if they are not set in X509_STORE. This allows X509_STORE
1804 purposes and trust (in S/MIME for example) to override any set by default.
1806 Add command line options for CRL checking to smime, s_client and s_server
1810 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1811 are set then the CRL is looked up in the X509_STORE structure and
1812 its validity and signature checked, then if the certificate is found
1813 in the CRL the verify fails with a revoked error.
1815 Various new CRL related callbacks added to X509_STORE_CTX structure.
1817 Command line options added to 'verify' application to support this.
1819 This needs some additional work, such as being able to handle multiple
1820 CRLs with different times, extension based lookup (rather than just
1821 by subject name) and ultimately more complete V2 CRL extension
1825 *) Add a general user interface API (crypto/ui/). This is designed
1826 to replace things like des_read_password and friends (backward
1827 compatibility functions using this new API are provided).
1828 The purpose is to remove prompting functions from the DES code
1829 section as well as provide for prompting through dialog boxes in
1830 a window system and the like.
1833 *) Add "ex_data" support to ENGINE so implementations can add state at a
1834 per-structure level rather than having to store it globally.
1837 *) Make it possible for ENGINE structures to be copied when retrieved by
1838 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1839 This causes the "original" ENGINE structure to act like a template,
1840 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1841 operational state can be localised to each ENGINE structure, despite the
1842 fact they all share the same "methods". New ENGINE structures returned in
1843 this case have no functional references and the return value is the single
1844 structural reference. This matches the single structural reference returned
1845 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1849 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1850 needs to match any other type at all we need to manually clear the
1854 *) Changes to the "openssl engine" utility to include;
1855 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1856 about an ENGINE's available control commands.
1857 - executing control commands from command line arguments using the
1858 '-pre' and '-post' switches. '-post' is only used if '-t' is
1859 specified and the ENGINE is successfully initialised. The syntax for
1860 the individual commands are colon-separated, for example;
1861 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1864 *) New dynamic control command support for ENGINEs. ENGINEs can now
1865 declare their own commands (numbers), names (strings), descriptions,
1866 and input types for run-time discovery by calling applications. A
1867 subset of these commands are implicitly classed as "executable"
1868 depending on their input type, and only these can be invoked through
1869 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1870 can be based on user input, config files, etc). The distinction is
1871 that "executable" commands cannot return anything other than a boolean
1872 result and can only support numeric or string input, whereas some
1873 discoverable commands may only be for direct use through
1874 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1875 pointers, or other custom uses. The "executable" commands are to
1876 support parameterisations of ENGINE behaviour that can be
1877 unambiguously defined by ENGINEs and used consistently across any
1878 OpenSSL-based application. Commands have been added to all the
1879 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1880 control over shared-library paths without source code alterations.
1883 *) Changed all ENGINE implementations to dynamically allocate their
1884 ENGINEs rather than declaring them statically. Apart from this being
1885 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1886 this also allows the implementations to compile without using the
1887 internal engine_int.h header.
1890 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1891 'const' value. Any code that should be able to modify a RAND_METHOD
1892 should already have non-const pointers to it (ie. they should only
1893 modify their own ones).
1896 *) Made a variety of little tweaks to the ENGINE code.
1897 - "atalla" and "ubsec" string definitions were moved from header files
1898 to C code. "nuron" string definitions were placed in variables
1899 rather than hard-coded - allowing parameterisation of these values
1900 later on via ctrl() commands.
1901 - Removed unused "#if 0"'d code.
1902 - Fixed engine list iteration code so it uses ENGINE_free() to release
1903 structural references.
1904 - Constified the RAND_METHOD element of ENGINE structures.
1905 - Constified various get/set functions as appropriate and added
1906 missing functions (including a catch-all ENGINE_cpy that duplicates
1907 all ENGINE values onto a new ENGINE except reference counts/state).
1908 - Removed NULL parameter checks in get/set functions. Setting a method
1909 or function to NULL is a way of cancelling out a previously set
1910 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1911 and doesn't justify the extra error symbols and code.
1912 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1913 flags from engine_int.h to engine.h.
1914 - Changed prototypes for ENGINE handler functions (init(), finish(),
1915 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1918 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1919 to the algorithm using long division. The binary algorithm can be
1920 used only if the modulus is odd. On 32-bit systems, it is faster
1921 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1922 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1923 up to 450 bits. In 64-bit environments, the binary algorithm
1924 appears to be advantageous for much longer moduli; here we use it
1925 for moduli up to 2048 bits.
1928 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1929 could not support the combine flag in choice fields.
1932 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1933 extensions from a certificate request to the certificate.
1936 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1937 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1938 file: this allows the display of the certificate about to be
1939 signed to be customised, to allow certain fields to be included
1940 or excluded and extension details. The old system didn't display
1941 multicharacter strings properly, omitted fields not in the policy
1942 and couldn't display additional details such as extensions.
1945 *) Function EC_POINTs_mul for multiple scalar multiplication
1946 of an arbitrary number of elliptic curve points
1947 \sum scalars[i]*points[i],
1948 optionally including the generator defined for the EC_GROUP:
1949 scalar*generator + \sum scalars[i]*points[i].
1951 EC_POINT_mul is a simple wrapper function for the typical case
1952 that the point list has just one item (besides the optional
1956 *) First EC_METHODs for curves over GF(p):
1958 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1959 operations and provides various method functions that can also
1960 operate with faster implementations of modular arithmetic.
1962 EC_GFp_mont_method() reuses most functions that are part of
1963 EC_GFp_simple_method, but uses Montgomery arithmetic.
1965 [Bodo Moeller; point addition and point doubling
1966 implementation directly derived from source code provided by
1967 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1969 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1970 crypto/ec/ec_lib.c):
1972 Curves are EC_GROUP objects (with an optional group generator)
1973 based on EC_METHODs that are built into the library.
1975 Points are EC_POINT objects based on EC_GROUP objects.
1977 Most of the framework would be able to handle curves over arbitrary
1978 finite fields, but as there are no obvious types for fields other
1979 than GF(p), some functions are limited to that for now.
1982 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1983 that the file contains a complete HTTP response.
1986 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1987 change the def and num file printf format specifier from "%-40sXXX"
1988 to "%-39s XXX". The latter will always guarantee a space after the
1989 field while the former will cause them to run together if the field
1990 is 40 of more characters long.
1993 *) Constify the cipher and digest 'method' functions and structures
1994 and modify related functions to take constant EVP_MD and EVP_CIPHER
1998 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1999 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2002 *) Modify EVP_Digest*() routines so they now return values. Although the
2003 internal software routines can never fail additional hardware versions
2007 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2009 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2010 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2013 ERR_R_NESTED_ASN1_ERROR
2015 ERR_R_MISSING_ASN1_EOS
2016 were 4 .. 9, conflicting with
2017 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2019 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2020 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2022 Add new error code 'ERR_R_INTERNAL_ERROR'.
2025 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2029 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2030 sets the subject name for a new request or supersedes the
2031 subject name in a given request. Formats that can be parsed are
2032 'CN=Some Name, OU=myOU, C=IT'
2034 'CN=Some Name/OU=myOU/C=IT'.
2036 Add options '-batch' and '-verbose' to 'openssl req'.
2037 [Massimiliano Pala <madwolf@hackmasters.net>]
2039 *) Introduce the possibility to access global variables through
2040 functions on platform were that's the best way to handle exporting
2041 global variables in shared libraries. To enable this functionality,
2042 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2043 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2044 is normally done by Configure or something similar).
2046 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2047 in the source file (foo.c) like this:
2049 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2050 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2052 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2053 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2055 OPENSSL_DECLARE_GLOBAL(int,foo);
2056 #define foo OPENSSL_GLOBAL_REF(foo)
2057 OPENSSL_DECLARE_GLOBAL(double,bar);
2058 #define bar OPENSSL_GLOBAL_REF(bar)
2060 The #defines are very important, and therefore so is including the
2061 header file everywhere where the defined globals are used.
2063 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2064 of ASN.1 items, but that structure is a bit different.
2066 The largest change is in util/mkdef.pl which has been enhanced with
2067 better and easier to understand logic to choose which symbols should
2068 go into the Windows .def files as well as a number of fixes and code
2069 cleanup (among others, algorithm keywords are now sorted
2070 lexicographically to avoid constant rewrites).
2073 *) In BN_div() keep a copy of the sign of 'num' before writing the
2074 result to 'rm' because if rm==num the value will be overwritten
2075 and produce the wrong result if 'num' is negative: this caused
2076 problems with BN_mod() and BN_nnmod().
2079 *) Function OCSP_request_verify(). This checks the signature on an
2080 OCSP request and verifies the signer certificate. The signer
2081 certificate is just checked for a generic purpose and OCSP request
2085 *) Add OCSP_check_validity() function to check the validity of OCSP
2086 responses. OCSP responses are prepared in real time and may only
2087 be a few seconds old. Simply checking that the current time lies
2088 between thisUpdate and nextUpdate max reject otherwise valid responses
2089 caused by either OCSP responder or client clock inaccuracy. Instead
2090 we allow thisUpdate and nextUpdate to fall within a certain period of
2091 the current time. The age of the response can also optionally be
2092 checked. Two new options -validity_period and -status_age added to
2096 *) If signature or public key algorithm is unrecognized print out its
2097 OID rather that just UNKNOWN.
2100 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2101 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2102 ID to be generated from the issuer certificate alone which can then be
2103 passed to OCSP_id_issuer_cmp().
2106 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2107 ASN1 modules to export functions returning ASN1_ITEM pointers
2108 instead of the ASN1_ITEM structures themselves. This adds several
2109 new macros which allow the underlying ASN1 function/structure to
2110 be accessed transparently. As a result code should not use ASN1_ITEM
2111 references directly (such as &X509_it) but instead use the relevant
2112 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2113 use of the new ASN1 code on platforms where exporting structures
2114 is problematical (for example in shared libraries) but exporting
2115 functions returning pointers to structures is not.
2118 *) Add support for overriding the generation of SSL/TLS session IDs.
2119 These callbacks can be registered either in an SSL_CTX or per SSL.
2120 The purpose of this is to allow applications to control, if they wish,
2121 the arbitrary values chosen for use as session IDs, particularly as it
2122 can be useful for session caching in multiple-server environments. A
2123 command-line switch for testing this (and any client code that wishes
2124 to use such a feature) has been added to "s_server".
2125 [Geoff Thorpe, Lutz Jaenicke]
2127 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2128 of the form '#if defined(...) || defined(...) || ...' and
2129 '#if !defined(...) && !defined(...) && ...'. This also avoids
2130 the growing number of special cases it was previously handling.
2133 *) Make all configuration macros available for application by making
2134 sure they are available in opensslconf.h, by giving them names starting
2135 with "OPENSSL_" to avoid conflicts with other packages and by making
2136 sure e_os2.h will cover all platform-specific cases together with
2138 Additionally, it is now possible to define configuration/platform-
2139 specific names (called "system identities"). In the C code, these
2140 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2141 macro with the name beginning with "OPENSSL_SYS_", which is determined
2142 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2146 *) New option -set_serial to 'req' and 'x509' this allows the serial
2147 number to use to be specified on the command line. Previously self
2148 signed certificates were hard coded with serial number 0 and the
2149 CA options of 'x509' had to use a serial number in a file which was
2153 *) New options to 'ca' utility to support V2 CRL entry extensions.
2154 Currently CRL reason, invalidity date and hold instruction are
2155 supported. Add new CRL extensions to V3 code and some new objects.
2158 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2159 disable standard block padding (aka PKCS#5 padding) in the EVP
2160 API, which was previously mandatory. This means that the data is
2161 not padded in any way and so the total length much be a multiple
2162 of the block size, otherwise an error occurs.
2165 *) Initial (incomplete) OCSP SSL support.
2168 *) New function OCSP_parse_url(). This splits up a URL into its host,
2169 port and path components: primarily to parse OCSP URLs. New -url
2170 option to ocsp utility.
2173 *) New nonce behavior. The return value of OCSP_check_nonce() now
2174 reflects the various checks performed. Applications can decide
2175 whether to tolerate certain situations such as an absent nonce
2176 in a response when one was present in a request: the ocsp application
2177 just prints out a warning. New function OCSP_add1_basic_nonce()
2178 this is to allow responders to include a nonce in a response even if
2179 the request is nonce-less.
2182 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2183 skipped when using openssl x509 multiple times on a single input file,
2184 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2187 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2188 set string type: to handle setting ASN1_TIME structures. Fix ca
2189 utility to correctly initialize revocation date of CRLs.
2192 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2193 the clients preferred ciphersuites and rather use its own preferences.
2194 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2195 Internet Explorer by ensuring unchanged hash method during stepup.
2196 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2199 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2200 to aes and add a new 'exist' option to print out symbols that don't
2204 *) Additional options to ocsp utility to allow flags to be set and
2205 additional certificates supplied.
2208 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2209 OCSP client a number of certificate to only verify the response
2213 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2214 handle the new API. Currently only ECB, CBC modes supported. Add new
2217 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2218 Encryption Standard (AES) Ciphersuites for Transport Layer
2219 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2220 not enabled by default and were not part of the "ALL" ciphersuite
2221 alias because they were not yet official; they could be
2222 explicitly requested by specifying the "AESdraft" ciphersuite
2223 group alias. In the final release of OpenSSL 0.9.7, the group
2224 alias is called "AES" and is part of "ALL".)
2225 [Ben Laurie, Steve Henson, Bodo Moeller]
2227 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2228 request to response.
2231 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2232 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2233 extract information from a certificate request. OCSP_response_create()
2234 creates a response and optionally adds a basic response structure.
2235 OCSP_basic_add1_status() adds a complete single response to a basic
2236 response and returns the OCSP_SINGLERESP structure just added (to allow
2237 extensions to be included for example). OCSP_basic_add1_cert() adds a
2238 certificate to a basic response and OCSP_basic_sign() signs a basic
2239 response with various flags. New helper functions ASN1_TIME_check()
2240 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2241 (converts ASN1_TIME to GeneralizedTime).
2244 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2245 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2246 structure from a certificate. X509_pubkey_digest() digests the public_key
2247 contents: this is used in various key identifiers.
2250 *) Make sk_sort() tolerate a NULL argument.
2251 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2253 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2254 passed by the function are trusted implicitly. If any of them signed the
2255 response then it is assumed to be valid and is not verified.
2258 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2259 to data. This was previously part of the PKCS7 ASN1 code. This
2260 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2261 [Steve Henson, reported by Kenneth R. Robinette
2262 <support@securenetterm.com>]
2264 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2265 routines: without these tracing memory leaks is very painful.
2266 Fix leaks in PKCS12 and PKCS7 routines.
2269 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2270 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2271 effectively meant GeneralizedTime would never be used. Now it
2272 is initialised to -1 but X509_time_adj() now has to check the value
2273 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2274 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2275 [Steve Henson, reported by Kenneth R. Robinette
2276 <support@securenetterm.com>]
2278 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2279 result in a zero length in the ASN1_INTEGER structure which was
2280 not consistent with the structure when d2i_ASN1_INTEGER() was used
2281 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2282 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2283 where it did not print out a minus for negative ASN1_INTEGER.
2286 *) Add summary printout to ocsp utility. The various functions which
2287 convert status values to strings have been renamed to:
2288 OCSP_response_status_str(), OCSP_cert_status_str() and
2289 OCSP_crl_reason_str() and are no longer static. New options
2290 to verify nonce values and to disable verification. OCSP response
2291 printout format cleaned up.
2294 *) Add additional OCSP certificate checks. These are those specified
2295 in RFC2560. This consists of two separate checks: the CA of the
2296 certificate being checked must either be the OCSP signer certificate
2297 or the issuer of the OCSP signer certificate. In the latter case the
2298 OCSP signer certificate must contain the OCSP signing extended key
2299 usage. This check is performed by attempting to match the OCSP
2300 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2301 in the OCSP_CERTID structures of the response.
2304 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2305 and related routines. This uses the standard OpenSSL certificate
2306 verify routines to perform initial checks (just CA validity) and
2307 to obtain the certificate chain. Then additional checks will be
2308 performed on the chain. Currently the root CA is checked to see
2309 if it is explicitly trusted for OCSP signing. This is used to set
2310 a root CA as a global signing root: that is any certificate that
2311 chains to that CA is an acceptable OCSP signing certificate.
2314 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2315 extensions from a separate configuration file.
2316 As when reading extensions from the main configuration file,
2317 the '-extensions ...' option may be used for specifying the
2319 [Massimiliano Pala <madwolf@comune.modena.it>]
2321 *) New OCSP utility. Allows OCSP requests to be generated or
2322 read. The request can be sent to a responder and the output
2323 parsed, outputed or printed in text form. Not complete yet:
2324 still needs to check the OCSP response validity.
2327 *) New subcommands for 'openssl ca':
2328 'openssl ca -status <serial>' prints the status of the cert with
2329 the given serial number (according to the index file).
2330 'openssl ca -updatedb' updates the expiry status of certificates
2332 [Massimiliano Pala <madwolf@comune.modena.it>]
2334 *) New '-newreq-nodes' command option to CA.pl. This is like
2335 '-newreq', but calls 'openssl req' with the '-nodes' option
2336 so that the resulting key is not encrypted.
2337 [Damien Miller <djm@mindrot.org>]
2339 *) New configuration for the GNU Hurd.
2340 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2342 *) Initial code to implement OCSP basic response verify. This
2343 is currently incomplete. Currently just finds the signer's
2344 certificate and verifies the signature on the response.
2347 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2348 value of OPENSSLDIR. This is available via the new '-d' option
2349 to 'openssl version', and is also included in 'openssl version -a'.
2352 *) Allowing defining memory allocation callbacks that will be given
2353 file name and line number information in additional arguments
2354 (a const char* and an int). The basic functionality remains, as
2355 well as the original possibility to just replace malloc(),
2356 realloc() and free() by functions that do not know about these
2357 additional arguments. To register and find out the current
2358 settings for extended allocation functions, the following
2359 functions are provided:
2361 CRYPTO_set_mem_ex_functions
2362 CRYPTO_set_locked_mem_ex_functions
2363 CRYPTO_get_mem_ex_functions
2364 CRYPTO_get_locked_mem_ex_functions
2366 These work the same way as CRYPTO_set_mem_functions and friends.
2367 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2368 extended allocation function is enabled.
2369 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2370 a conventional allocation function is enabled.
2371 [Richard Levitte, Bodo Moeller]
2373 *) Finish off removing the remaining LHASH function pointer casts.
2374 There should no longer be any prototype-casting required when using
2375 the LHASH abstraction, and any casts that remain are "bugs". See
2376 the callback types and macros at the head of lhash.h for details
2377 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2380 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2381 If /dev/[u]random devices are not available or do not return enough
2382 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2384 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2385 /etc/entropy will be queried once each in this sequence, quering stops
2386 when enough entropy was collected without querying more sockets.
2389 *) Change the Unix RAND_poll() variant to be able to poll several
2390 random devices, as specified by DEVRANDOM, until a sufficient amount
2391 of data has been collected. We spend at most 10 ms on each file
2392 (select timeout) and read in non-blocking mode. DEVRANDOM now
2393 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2394 (previously it was just the string "/dev/urandom"), so on typical
2395 platforms the 10 ms delay will never occur.
2396 Also separate out the Unix variant to its own file, rand_unix.c.
2397 For VMS, there's a currently-empty rand_vms.c.
2400 *) Move OCSP client related routines to ocsp_cl.c. These
2401 provide utility functions which an application needing
2402 to issue a request to an OCSP responder and analyse the
2403 response will typically need: as opposed to those which an
2404 OCSP responder itself would need which will be added later.
2406 OCSP_request_sign() signs an OCSP request with an API similar
2407 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2408 response. OCSP_response_get1_basic() extracts basic response
2409 from response. OCSP_resp_find_status(): finds and extracts status
2410 information from an OCSP_CERTID structure (which will be created
2411 when the request structure is built). These are built from lower
2412 level functions which work on OCSP_SINGLERESP structures but
2413 wont normally be used unless the application wishes to examine
2414 extensions in the OCSP response for example.
2416 Replace nonce routines with a pair of functions.
2417 OCSP_request_add1_nonce() adds a nonce value and optionally
2418 generates a random value. OCSP_check_nonce() checks the
2419 validity of the nonce in an OCSP response.
2422 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2423 This doesn't copy the supplied OCSP_CERTID and avoids the
2424 need to free up the newly created id. Change return type
2425 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2426 This can then be used to add extensions to the request.
2427 Deleted OCSP_request_new(), since most of its functionality
2428 is now in OCSP_REQUEST_new() (and the case insensitive name
2429 clash) apart from the ability to set the request name which
2430 will be added elsewhere.
2433 *) Update OCSP API. Remove obsolete extensions argument from
2434 various functions. Extensions are now handled using the new
2435 OCSP extension code. New simple OCSP HTTP function which
2436 can be used to send requests and parse the response.
2439 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2440 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2441 uses the special reorder version of SET OF to sort the attributes
2442 and reorder them to match the encoded order. This resolves a long
2443 standing problem: a verify on a PKCS7 structure just after signing
2444 it used to fail because the attribute order did not match the
2445 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2446 it uses the received order. This is necessary to tolerate some broken
2447 software that does not order SET OF. This is handled by encoding
2448 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2449 to produce the required SET OF.
2452 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2453 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2454 files to get correct declarations of the ASN.1 item variables.
2457 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2458 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2459 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2460 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2461 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2462 ASN1_ITEM and no wrapper functions.
2465 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2466 replace the old function pointer based I/O routines. Change most of
2467 the *_d2i_bio() and *_d2i_fp() functions to use these.
2470 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2471 lines, recognice more "algorithms" that can be deselected, and make
2472 it complain about algorithm deselection that isn't recognised.
2475 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2476 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2477 to use new functions. Add NO_ASN1_OLD which can be set to remove
2478 some old style ASN1 functions: this can be used to determine if old
2479 code will still work when these eventually go away.
2482 *) New extension functions for OCSP structures, these follow the
2483 same conventions as certificates and CRLs.
2486 *) New function X509V3_add1_i2d(). This automatically encodes and
2487 adds an extension. Its behaviour can be customised with various
2488 flags to append, replace or delete. Various wrappers added for
2489 certifcates and CRLs.
2492 *) Fix to avoid calling the underlying ASN1 print routine when
2493 an extension cannot be parsed. Correct a typo in the
2494 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2497 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2498 entries for variables.
2501 *) Add functionality to apps/openssl.c for detecting locking
2502 problems: As the program is single-threaded, all we have
2503 to do is register a locking callback using an array for
2504 storing which locks are currently held by the program.
2507 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2508 SSL_get_ex_data_X509_STORE_idx(), which is used in
2509 ssl_verify_cert_chain() and thus can be called at any time
2510 during TLS/SSL handshakes so that thread-safety is essential.
2511 Unfortunately, the ex_data design is not at all suited
2512 for multi-threaded use, so it probably should be abolished.
2515 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2516 [Broadcom, tweaked and integrated by Geoff Thorpe]
2518 *) Move common extension printing code to new function
2519 X509V3_print_extensions(). Reorganise OCSP print routines and
2520 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2523 *) New function X509_signature_print() to remove duplication in some
2527 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2528 set (this was treated exactly the same as SET OF previously). This
2529 is used to reorder the STACK representing the structure to match the
2530 encoding. This will be used to get round a problem where a PKCS7
2531 structure which was signed could not be verified because the STACK
2532 order did not reflect the encoded order.
2535 *) Reimplement the OCSP ASN1 module using the new code.
2538 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2539 for its ASN1 operations. The old style function pointers still exist
2540 for now but they will eventually go away.
2543 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2544 completely replaces the old ASN1 functionality with a table driven
2545 encoder and decoder which interprets an ASN1_ITEM structure describing
2546 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2547 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2548 has also been converted to the new form.
2551 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2552 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2553 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2554 for negative moduli.
2557 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2558 of not touching the result's sign bit.
2561 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2565 *) Changed the LHASH code to use prototypes for callbacks, and created
2566 macros to declare and implement thin (optionally static) functions
2567 that provide type-safety and avoid function pointer casting for the
2568 type-specific callbacks.
2571 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2573 [Veers Staats <staatsvr@asc.hpc.mil>,
2574 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2576 *) Reformat the FAQ so the different questions and answers can be divided
2577 in sections depending on the subject.
2580 *) Have the zlib compression code load ZLIB.DLL dynamically under
2584 *) New function BN_mod_sqrt for computing square roots modulo a prime
2585 (using the probabilistic Tonelli-Shanks algorithm unless
2586 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2587 be handled deterministically).
2588 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2590 *) Make BN_mod_inverse faster by explicitly handling small quotients
2591 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2592 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2595 *) New function BN_kronecker.
2598 *) Fix BN_gcd so that it works on negative inputs; the result is
2599 positive unless both parameters are zero.
2600 Previously something reasonably close to an infinite loop was
2601 possible because numbers could be growing instead of shrinking
2602 in the implementation of Euclid's algorithm.
2605 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2606 sign of the number in question.
2608 Fix BN_is_word(a,w) to work correctly for w == 0.
2610 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2611 because its test if the absolute value of 'a' equals 'w'.
2612 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2613 it exists mostly for use in the implementations of BN_is_zero(),
2614 BN_is_one(), and BN_is_word().
2617 *) New function BN_swap.
2620 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2621 the exponentiation functions are more likely to produce reasonable
2622 results on negative inputs.
2625 *) Change BN_mod_mul so that the result is always non-negative.
2626 Previously, it could be negative if one of the factors was negative;
2627 I don't think anyone really wanted that behaviour.
2630 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2631 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2632 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2633 and add new functions:
2642 BN_mod_lshift1_quick
2646 These functions always generate non-negative results.
2648 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2649 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2651 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2652 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2653 be reduced modulo m.
2654 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2657 The following entry accidentily appeared in the CHANGES file
2658 distributed with OpenSSL 0.9.7. The modifications described in
2659 it do *not* apply to OpenSSL 0.9.7.
2661 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2662 was actually never needed) and in BN_mul(). The removal in BN_mul()
2663 required a small change in bn_mul_part_recursive() and the addition
2664 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2665 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2666 bn_sub_words() and bn_add_words() except they take arrays with
2671 *) In 'openssl passwd', verify passwords read from the terminal
2672 unless the '-salt' option is used (which usually means that
2673 verification would just waste user's time since the resulting
2674 hash is going to be compared with some given password hash)
2675 or the new '-noverify' option is used.
2677 This is an incompatible change, but it does not affect
2678 non-interactive use of 'openssl passwd' (passwords on the command
2679 line, '-stdin' option, '-in ...' option) and thus should not
2683 *) Remove all references to RSAref, since there's no more need for it.
2686 *) Make DSO load along a path given through an environment variable
2687 (SHLIB_PATH) with shl_load().
2690 *) Constify the ENGINE code as a result of BIGNUM constification.
2691 Also constify the RSA code and most things related to it. In a
2692 few places, most notable in the depth of the ASN.1 code, ugly
2693 casts back to non-const were required (to be solved at a later
2697 *) Make it so the openssl application has all engines loaded by default.
2700 *) Constify the BIGNUM routines a little more.
2703 *) Add the following functions:
2705 ENGINE_load_cswift()
2707 ENGINE_load_atalla()
2709 ENGINE_load_builtin_engines()
2711 That way, an application can itself choose if external engines that
2712 are built-in in OpenSSL shall ever be used or not. The benefit is
2713 that applications won't have to be linked with libdl or other dso
2714 libraries unless it's really needed.
2716 Changed 'openssl engine' to load all engines on demand.
2717 Changed the engine header files to avoid the duplication of some
2718 declarations (they differed!).
2721 *) 'openssl engine' can now list capabilities.
2724 *) Better error reporting in 'openssl engine'.
2727 *) Never call load_dh_param(NULL) in s_server.
2730 *) Add engine application. It can currently list engines by name and
2731 identity, and test if they are actually available.
2734 *) Improve RPM specification file by forcing symbolic linking and making
2735 sure the installed documentation is also owned by root.root.
2736 [Damien Miller <djm@mindrot.org>]
2738 *) Give the OpenSSL applications more possibilities to make use of
2739 keys (public as well as private) handled by engines.
2742 *) Add OCSP code that comes from CertCo.
2745 *) Add VMS support for the Rijndael code.
2748 *) Added untested support for Nuron crypto accelerator.
2751 *) Add support for external cryptographic devices. This code was
2752 previously distributed separately as the "engine" branch.
2753 [Geoff Thorpe, Richard Levitte]
2755 *) Rework the filename-translation in the DSO code. It is now possible to
2756 have far greater control over how a "name" is turned into a filename
2757 depending on the operating environment and any oddities about the
2758 different shared library filenames on each system.
2761 *) Support threads on FreeBSD-elf in Configure.
2764 *) Fix for SHA1 assembly problem with MASM: it produces
2765 warnings about corrupt line number information when assembling
2766 with debugging information. This is caused by the overlapping
2768 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2771 NCONF_get_number() has no error checking at all. As a replacement,
2772 NCONF_get_number_e() is defined (_e for "error checking") and is
2773 promoted strongly. The old NCONF_get_number is kept around for
2774 binary backward compatibility.
2775 Make it possible for methods to load from something other than a BIO,
2776 by providing a function pointer that is given a name instead of a BIO.
2777 For example, this could be used to load configuration data from an
2781 *) Fix for non blocking accept BIOs. Added new I/O special reason
2782 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2783 with non blocking I/O was not possible because no retry code was
2784 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2788 *) Added the beginnings of Rijndael support.
2791 *) Fix for bug in DirectoryString mask setting. Add support for
2792 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2793 to allow certificate printing to more controllable, additional
2794 'certopt' option to 'x509' to allow new printing options to be
2798 *) Clean old EAY MD5 hack from e_os.h.
2801 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2803 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2804 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
2805 [Joe Orton, Steve Henson]
2807 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2809 *) Fix additional bug revealed by the NISCC test suite:
2811 Stop bug triggering large recursion when presented with
2812 certain ASN.1 tags (CAN-2003-0851)
2815 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2817 *) Fix various bugs revealed by running the NISCC test suite:
2819 Stop out of bounds reads in the ASN1 code when presented with
2820 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2822 If verify callback ignores invalid public key errors don't try to check
2823 certificate signature with the NULL public key.
2827 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2828 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2832 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2833 extra data after the compression methods not only for TLS 1.0
2834 but also for SSL 3.0 (as required by the specification).
2835 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2837 *) Change X509_certificate_type() to mark the key as exported/exportable
2838 when it's 512 *bits* long, not 512 bytes.
2841 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2843 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2844 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2845 a protocol version number mismatch like a decryption error
2846 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2849 *) Turn on RSA blinding by default in the default implementation
2850 to avoid a timing attack. Applications that don't want it can call
2851 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2852 They would be ill-advised to do so in most cases.
2853 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2855 *) Change RSA blinding code so that it works when the PRNG is not
2856 seeded (in this case, the secret RSA exponent is abused as
2857 an unpredictable seed -- if it is not unpredictable, there
2858 is no point in blinding anyway). Make RSA blinding thread-safe
2859 by remembering the creator's thread ID in rsa->blinding and
2860 having all other threads use local one-time blinding factors
2861 (this requires more computation than sharing rsa->blinding, but
2862 avoids excessive locking; and if an RSA object is not shared
2863 between threads, blinding will still be very fast).
2866 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2868 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2869 via timing by performing a MAC computation even if incorrrect
2870 block cipher padding has been found. This is a countermeasure
2871 against active attacks where the attacker has to distinguish
2872 between bad padding and a MAC verification error. (CAN-2003-0078)
2874 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2875 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2876 Martin Vuagnoux (EPFL, Ilion)]
2878 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2880 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2881 memory from it's contents. This is done with a counter that will
2882 place alternating values in each byte. This can be used to solve
2883 two issues: 1) the removal of calls to memset() by highly optimizing
2884 compilers, and 2) cleansing with other values than 0, since those can
2885 be read through on certain media, for example a swap space on disk.
2888 *) Bugfix: client side session caching did not work with external caching,
2889 because the session->cipher setting was not restored when reloading
2890 from the external cache. This problem was masked, when
2891 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2892 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2895 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2896 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2897 [Zeev Lieber <zeev-l@yahoo.com>]
2899 *) Undo an undocumented change introduced in 0.9.6e which caused
2900 repeated calls to OpenSSL_add_all_ciphers() and
2901 OpenSSL_add_all_digests() to be ignored, even after calling
2905 *) Change the default configuration reader to deal with last line not
2906 being properly terminated.
2909 *) Change X509_NAME_cmp() so it applies the special rules on handling
2910 DN values that are of type PrintableString, as well as RDNs of type
2911 emailAddress where the value has the type ia5String.
2912 [stefank@valicert.com via Richard Levitte]
2914 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2915 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2916 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2917 the bitwise-OR of the two for use by the majority of applications
2918 wanting this behaviour, and update the docs. The documented
2919 behaviour and actual behaviour were inconsistent and had been
2920 changing anyway, so this is more a bug-fix than a behavioural
2922 [Geoff Thorpe, diagnosed by Nadav Har'El]
2924 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2925 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2928 *) Fix initialization code race conditions in
2929 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2930 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2931 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2932 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2933 ssl2_get_cipher_by_char(),
2934 ssl3_get_cipher_by_char().
2935 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2937 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2938 the cached sessions are flushed, as the remove_cb() might use ex_data
2939 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2940 (see [openssl.org #212]).
2941 [Geoff Thorpe, Lutz Jaenicke]
2943 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2944 length, instead of the encoding length to d2i_ASN1_OBJECT.
2947 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2949 *) [In 0.9.6g-engine release:]
2950 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2951 [Lynn Gazis <lgazis@rainbow.com>]
2953 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2955 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2956 and get fix the header length calculation.
2957 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2958 Alon Kantor <alonk@checkpoint.com> (and others),
2961 *) Use proper error handling instead of 'assertions' in buffer
2962 overflow checks added in 0.9.6e. This prevents DoS (the
2963 assertions could call abort()).
2964 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2966 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2968 *) Add various sanity checks to asn1_get_length() to reject
2969 the ASN1 length bytes if they exceed sizeof(long), will appear
2970 negative or the content length exceeds the length of the
2972 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2974 *) Fix cipher selection routines: ciphers without encryption had no flags
2975 for the cipher strength set and where therefore not handled correctly
2976 by the selection routines (PR #130).
2979 *) Fix EVP_dsa_sha macro.
2983 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2984 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2985 that was added in OpenSSL 0.9.6d.
2987 As the countermeasure turned out to be incompatible with some
2988 broken SSL implementations, the new option is part of SSL_OP_ALL.
2989 SSL_OP_ALL is usually employed when compatibility with weird SSL
2990 implementations is desired (e.g. '-bugs' option to 's_client' and
2991 's_server'), so the new option is automatically set in many
2995 *) Changes in security patch:
2997 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2998 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2999 Air Force Materiel Command, USAF, under agreement number
3002 *) Add various sanity checks to asn1_get_length() to reject
3003 the ASN1 length bytes if they exceed sizeof(long), will appear
3004 negative or the content length exceeds the length of the
3005 supplied buffer. (CAN-2002-0659)
3006 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3008 *) Assertions for various potential buffer overflows, not known to
3010 [Ben Laurie (CHATS)]
3012 *) Various temporary buffers to hold ASCII versions of integers were
3013 too small for 64 bit platforms. (CAN-2002-0655)
3014 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3016 *) Remote buffer overflow in SSL3 protocol - an attacker could
3017 supply an oversized session ID to a client. (CAN-2002-0656)
3018 [Ben Laurie (CHATS)]
3020 *) Remote buffer overflow in SSL2 protocol - an attacker could
3021 supply an oversized client master key. (CAN-2002-0656)
3022 [Ben Laurie (CHATS)]
3024 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3026 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3027 encoded as NULL) with id-dsa-with-sha1.
3028 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3030 *) Check various X509_...() return values in apps/req.c.
3031 [Nils Larsch <nla@trustcenter.de>]
3033 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3034 an end-of-file condition would erronously be flagged, when the CRLF
3035 was just at the end of a processed block. The bug was discovered when
3036 processing data through a buffering memory BIO handing the data to a
3037 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3038 <ptsekov@syntrex.com> and Nedelcho Stanev.
3041 *) Implement a countermeasure against a vulnerability recently found
3042 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3043 before application data chunks to avoid the use of known IVs
3044 with data potentially chosen by the attacker.
3047 *) Fix length checks in ssl3_get_client_hello().
3050 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3051 to prevent ssl3_read_internal() from incorrectly assuming that
3052 ssl3_read_bytes() found application data while handshake
3053 processing was enabled when in fact s->s3->in_read_app_data was
3054 merely automatically cleared during the initial handshake.
3055 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3057 *) Fix object definitions for Private and Enterprise: they were not
3058 recognized in their shortname (=lowercase) representation. Extend
3059 obj_dat.pl to issue an error when using undefined keywords instead
3060 of silently ignoring the problem (Svenning Sorensen
3061 <sss@sss.dnsalias.net>).
3064 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3065 generators, i.e. generators other than 2 and 5. (Previously, the
3066 code did not properly initialise the 'add' and 'rem' values to
3067 BN_generate_prime().)
3069 In the new general case, we do not insist that 'generator' is
3070 actually a primitive root: This requirement is rather pointless;
3071 a generator of the order-q subgroup is just as good, if not
3075 *) Map new X509 verification errors to alerts. Discovered and submitted by
3076 Tom Wu <tom@arcot.com>.
3079 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3080 returning non-zero before the data has been completely received
3081 when using non-blocking I/O.
3082 [Bodo Moeller; problem pointed out by John Hughes]
3084 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3085 [Ben Laurie, Lutz Jaenicke]
3087 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3088 Yoram Zahavi <YoramZ@gilian.com>).
3091 *) Add information about CygWin 1.3 and on, and preserve proper
3092 configuration for the versions before that.
3093 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3095 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3096 check whether we deal with a copy of a session and do not delete from
3097 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3098 <izhar@checkpoint.com>.
3101 *) Do not store session data into the internal session cache, if it
3102 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3103 flag is set). Proposed by Aslam <aslam@funk.com>.
3106 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3110 *) [In 0.9.6d-engine release:]
3111 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3112 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3114 *) Add the configuration target linux-s390x.
3115 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3117 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3118 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3119 variable as an indication that a ClientHello message has been
3120 received. As the flag value will be lost between multiple
3121 invocations of ssl3_accept when using non-blocking I/O, the
3122 function may not be aware that a handshake has actually taken
3123 place, thus preventing a new session from being added to the
3126 To avoid this problem, we now set s->new_session to 2 instead of
3127 using a local variable.
3128 [Lutz Jaenicke, Bodo Moeller]
3130 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3131 if the SSL_R_LENGTH_MISMATCH error is detected.
3132 [Geoff Thorpe, Bodo Moeller]
3134 *) New 'shared_ldflag' column in Configure platform table.
3137 *) Fix EVP_CIPHER_mode macro.
3138 ["Dan S. Camper" <dan@bti.net>]
3140 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3141 type, we must throw them away by setting rr->length to 0.
3142 [D P Chang <dpc@qualys.com>]
3144 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3146 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3147 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3148 worked incorrectly for those cases where range = 10..._2 and
3149 3*range is two bits longer than range.)
3152 *) Only add signing time to PKCS7 structures if it is not already
3156 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3157 OBJ_ld_ce should be OBJ_id_ce.
3158 Also some ip-pda OIDs in crypto/objects/objects.txt were
3159 incorrect (cf. RFC 3039).
3160 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3162 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3163 returns early because it has nothing to do.
3164 [Andy Schneider <andy.schneider@bjss.co.uk>]
3166 *) [In 0.9.6c-engine release:]
3167 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3168 [Andy Schneider <andy.schneider@bjss.co.uk>]
3170 *) [In 0.9.6c-engine release:]
3171 Add support for Cryptographic Appliance's keyserver technology.
3172 (Use engine 'keyclient')
3173 [Cryptographic Appliances and Geoff Thorpe]
3175 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3176 is called via tools/c89.sh because arguments have to be
3177 rearranged (all '-L' options must appear before the first object
3179 [Richard Shapiro <rshapiro@abinitio.com>]
3181 *) [In 0.9.6c-engine release:]
3182 Add support for Broadcom crypto accelerator cards, backported
3184 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3186 *) [In 0.9.6c-engine release:]
3187 Add support for SureWare crypto accelerator cards from
3188 Baltimore Technologies. (Use engine 'sureware')
3189 [Baltimore Technologies and Mark Cox]
3191 *) [In 0.9.6c-engine release:]
3192 Add support for crypto accelerator cards from Accelerated
3193 Encryption Processing, www.aep.ie. (Use engine 'aep')
3194 [AEP Inc. and Mark Cox]
3196 *) Add a configuration entry for gcc on UnixWare.
3197 [Gary Benson <gbenson@redhat.com>]
3199 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3200 messages are stored in a single piece (fixed-length part and
3201 variable-length part combined) and fix various bugs found on the way.
3204 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3205 instead. BIO_gethostbyname() does not know what timeouts are
3206 appropriate, so entries would stay in cache even when they have
3208 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3210 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3211 faced with a pathologically small ClientHello fragment that does
3212 not contain client_version: Instead of aborting with an error,
3213 simply choose the highest available protocol version (i.e.,
3214 TLS 1.0 unless it is disabled). In practice, ClientHello
3215 messages are never sent like this, but this change gives us
3216 strictly correct behaviour at least for TLS.
3219 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3220 never resets s->method to s->ctx->method when called from within
3221 one of the SSL handshake functions.
3222 [Bodo Moeller; problem pointed out by Niko Baric]
3224 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3225 (sent using the client's version number) if client_version is
3226 smaller than the protocol version in use. Also change
3227 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3228 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3229 the client will at least see that alert.
3232 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3236 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3237 client receives HelloRequest while in a handshake.
3238 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3240 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3241 should end in 'break', not 'goto end' which circuments various
3242 cleanups done in state SSL_ST_OK. But session related stuff
3243 must be disabled for SSL_ST_OK in the case that we just sent a
3246 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3247 before just sending a HelloRequest.
3248 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3250 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3251 reveal whether illegal block cipher padding was found or a MAC
3252 verification error occured. (Neither SSLerr() codes nor alerts
3253 are directly visible to potential attackers, but the information
3254 may leak via logfiles.)
3256 Similar changes are not required for the SSL 2.0 implementation
3257 because the number of padding bytes is sent in clear for SSL 2.0,
3258 and the extra bytes are just ignored. However ssl/s2_pkt.c
3259 failed to verify that the purported number of padding bytes is in
3263 *) Add OpenUNIX-8 support including shared libraries
3264 (Boyd Lynn Gerber <gerberb@zenez.com>).
3267 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3268 'wristwatch attack' using huge encoding parameters (cf.
3269 James H. Manger's CRYPTO 2001 paper). Note that the
3270 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3271 encoding parameters and hence was not vulnerable.
3274 *) BN_sqr() bug fix.
3275 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3277 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3278 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3279 followed by modular reduction.
3280 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3282 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3283 equivalent based on BN_pseudo_rand() instead of BN_rand().
3286 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3287 This function was broken, as the check for a new client hello message
3288 to handle SGC did not allow these large messages.
3289 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3292 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3295 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3296 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3299 *) Rework the configuration and shared library support for Tru64 Unix.
3300 The configuration part makes use of modern compiler features and
3301 still retains old compiler behavior for those that run older versions
3302 of the OS. The shared library support part includes a variant that
3303 uses the RPATH feature, and is available through the special
3304 configuration target "alpha-cc-rpath", which will never be selected
3306 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3308 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3309 with the same message size as in ssl3_get_certificate_request().
3310 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3311 messages might inadvertently be reject as too long.
3312 [Petr Lampa <lampa@fee.vutbr.cz>]
3314 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3317 *) Modified SSL library such that the verify_callback that has been set
3318 specificly for an SSL object with SSL_set_verify() is actually being
3319 used. Before the change, a verify_callback set with this function was
3320 ignored and the verify_callback() set in the SSL_CTX at the time of
3321 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3322 to allow the necessary settings.
3325 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3326 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3327 done automatically (in contradiction to the requirements of the C
3328 standard). This made problems when used from OpenSSH.
3331 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3332 dh->length and always used
3334 BN_rand_range(priv_key, dh->p).
3336 BN_rand_range() is not necessary for Diffie-Hellman, and this
3337 specific range makes Diffie-Hellman unnecessarily inefficient if
3338 dh->length (recommended exponent length) is much smaller than the
3339 length of dh->p. We could use BN_rand_range() if the order of
3340 the subgroup was stored in the DH structure, but we only have
3345 BN_rand(priv_key, l, ...)
3347 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3353 RSA_eay_public_encrypt
3354 RSA_eay_private_decrypt
3355 RSA_eay_private_encrypt (signing)
3356 RSA_eay_public_decrypt (signature verification)
3358 (default implementations for RSA_public_encrypt,
3359 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3360 always reject numbers >= n.
3363 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3364 to synchronize access to 'locking_thread'. This is necessary on
3365 systems where access to 'locking_thread' (an 'unsigned long'
3366 variable) is not atomic.
3369 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3370 *before* setting the 'crypto_lock_rand' flag. The previous code had
3371 a race condition if 0 is a valid thread ID.
3372 [Travis Vitek <vitek@roguewave.com>]
3374 *) Add support for shared libraries under Irix.
3375 [Albert Chin-A-Young <china@thewrittenword.com>]
3377 *) Add configuration option to build on Linux on both big-endian and
3379 [Ralf Baechle <ralf@uni-koblenz.de>]
3381 *) Add the possibility to create shared libraries on HP-UX.
3384 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3386 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3387 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3388 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3389 PRNG state recovery was possible based on the output of
3390 one PRNG request appropriately sized to gain knowledge on
3391 'md' followed by enough consecutive 1-byte PRNG requests
3392 to traverse all of 'state'.
3394 1. When updating 'md_local' (the current thread's copy of 'md')
3395 during PRNG output generation, hash all of the previous
3396 'md_local' value, not just the half used for PRNG output.
3398 2. Make the number of bytes from 'state' included into the hash
3399 independent from the number of PRNG bytes requested.
3401 The first measure alone would be sufficient to avoid
3402 Markku-Juhani's attack. (Actually it had never occurred
3403 to me that the half of 'md_local' used for chaining was the
3404 half from which PRNG output bytes were taken -- I had always
3405 assumed that the secret half would be used.) The second
3406 measure makes sure that additional data from 'state' is never
3407 mixed into 'md_local' in small portions; this heuristically
3408 further strengthens the PRNG.
3411 *) Fix crypto/bn/asm/mips3.s.
3414 *) When only the key is given to "enc", the IV is undefined. Print out
3415 an error message in this case.
3418 *) Handle special case when X509_NAME is empty in X509 printing routines.
3421 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3422 positive and less than q.
3425 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3426 used: it isn't thread safe and the add_lock_callback should handle
3428 [Paul Rose <Paul.Rose@bridge.com>]
3430 *) Verify that incoming data obeys the block size in
3431 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3435 [Ulf Möller, Bodo Möller]
3437 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3438 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3439 when fixing the server behaviour for backwards-compatible 'client
3440 hello' messages. (Note that the attack is impractical against
3441 SSL 3.0 and TLS 1.0 anyway because length and version checking
3442 means that the probability of guessing a valid ciphertext is
3443 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3446 Before 0.9.5, the countermeasure (hide the error by generating a
3447 random 'decryption result') did not work properly because
3448 ERR_clear_error() was missing, meaning that SSL_get_error() would
3449 detect the supposedly ignored error.
3451 Both problems are now fixed.
3454 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3455 (previously it was 1024).
3458 *) Fix for compatibility mode trust settings: ignore trust settings
3459 unless some valid trust or reject settings are present.
3462 *) Fix for blowfish EVP: its a variable length cipher.
3465 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3466 parameters in DSA public key structures and return an error in the
3467 DSA routines if parameters are absent.
3470 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3471 in the current directory if neither $RANDFILE nor $HOME was set.
3472 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3473 caused some confusion to Windows users who haven't defined $HOME.
3474 Thus RAND_file_name() is changed again: e_os.h can define a
3475 DEFAULT_HOME, which will be used if $HOME is not set.
3476 For Windows, we use "C:"; on other platforms, we still require
3477 environment variables.
3479 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3480 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3481 having multiple threads call RAND_poll() concurrently.
3484 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3485 combination of a flag and a thread ID variable.
3486 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3487 flag), *other* threads can enter ssleay_add_bytes without obeying
3488 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3489 that they do not hold after the first thread unsets add_do_not_lock).
3492 *) Change bctest again: '-x' expressions are not available in all
3496 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3498 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3499 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3501 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3502 the default extension for executables, if any. Also, make the perl
3503 scripts that use symlink() to test if it really exists and use "cp"
3504 if it doesn't. All this made OpenSSL compilable and installable in
3508 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3509 If SEQUENCE is length is indefinite just set c->slen to the total
3510 amount of data available.
3511 [Steve Henson, reported by shige@FreeBSD.org]
3512 [This change does not apply to 0.9.7.]
3514 *) Change bctest to avoid here-documents inside command substitution
3515 (workaround for FreeBSD /bin/sh bug).
3516 For compatibility with Ultrix, avoid shell functions (introduced
3517 in the bctest version that searches along $PATH).
3520 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3521 with des_encrypt() defined on some operating systems, like Solaris
3525 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3526 On the Importance of Eliminating Errors in Cryptographic
3527 Computations, J. Cryptology 14 (2001) 2, 101-119,
3528 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3531 *) MIPS assembler BIGNUM division bug fix.
3534 *) Disabled incorrect Alpha assembler code.
3537 *) Fix PKCS#7 decode routines so they correctly update the length
3538 after reading an EOC for the EXPLICIT tag.
3540 [This change does not apply to 0.9.7.]
3542 *) Fix bug in PKCS#12 key generation routines. This was triggered
3543 if a 3DES key was generated with a 0 initial byte. Include
3544 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3545 (but broken) behaviour.
3548 *) Enhance bctest to search for a working bc along $PATH and print
3550 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3552 *) Fix memory leaks in err.c: free err_data string if necessary;
3553 don't write to the wrong index in ERR_set_error_data.
3556 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3560 *) Replace rdtsc with _emit statements for VC++ version 5.
3561 [Jeremy Cooper <jeremy@baymoo.org>]
3563 *) Make it possible to reuse SSLv2 sessions.
3566 *) In copy_email() check for >= 0 as a return value for
3567 X509_NAME_get_index_by_NID() since 0 is a valid index.
3568 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3570 *) Avoid coredump with unsupported or invalid public keys by checking if
3571 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3572 PKCS7_verify() fails with non detached data.
3575 *) Don't use getenv in library functions when run as setuid/setgid.
3576 New function OPENSSL_issetugid().
3579 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3580 due to incorrect handling of multi-threading:
3582 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3584 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3586 3. Count how many times MemCheck_off() has been called so that
3587 nested use can be treated correctly. This also avoids
3588 inband-signalling in the previous code (which relied on the
3589 assumption that thread ID 0 is impossible).
3592 *) Add "-rand" option also to s_client and s_server.
3595 *) Fix CPU detection on Irix 6.x.
3596 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3597 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3599 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3602 [This change does not apply to 0.9.7.]
3604 *) Use the cached encoding of an X509_NAME structure rather than
3605 copying it. This is apparently the reason for the libsafe "errors"
3606 but the code is actually correct.
3609 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3610 Bleichenbacher's DSA attack.
3611 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3612 to be set and top=0 forces the highest bit to be set; top=-1 is new
3613 and leaves the highest bit random.
3614 [Ulf Moeller, Bodo Moeller]
3616 *) In the NCONF_...-based implementations for CONF_... queries
3617 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3618 a temporary CONF structure with the data component set to NULL
3619 (which gives segmentation faults in lh_retrieve).
3620 Instead, use NULL for the CONF pointer in CONF_get_string and
3621 CONF_get_number (which may use environment variables) and directly
3622 return NULL from CONF_get_section.
3625 *) Fix potential buffer overrun for EBCDIC.
3628 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3629 keyUsage if basicConstraints absent for a CA.
3632 *) Make SMIME_write_PKCS7() write mail header values with a format that
3633 is more generally accepted (no spaces before the semicolon), since
3634 some programs can't parse those values properly otherwise. Also make
3635 sure BIO's that break lines after each write do not create invalid
3639 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3640 macros previously used would not encode an empty SEQUENCE OF
3641 and break the signature.
3643 [This change does not apply to 0.9.7.]
3645 *) Zero the premaster secret after deriving the master secret in
3649 *) Add some EVP_add_digest_alias registrations (as found in
3650 OpenSSL_add_all_digests()) to SSL_library_init()
3651 aka OpenSSL_add_ssl_algorithms(). This provides improved
3652 compatibility with peers using X.509 certificates
3653 with unconventional AlgorithmIdentifier OIDs.
3656 *) Fix for Irix with NO_ASM.
3657 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3659 *) ./config script fixes.
3660 [Ulf Moeller, Richard Levitte]
3662 *) Fix 'openssl passwd -1'.
3665 *) Change PKCS12_key_gen_asc() so it can cope with non null
3666 terminated strings whose length is passed in the passlen
3667 parameter, for example from PEM callbacks. This was done
3668 by adding an extra length parameter to asc2uni().
3669 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3671 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3672 call failed, free the DSA structure.
3675 *) Fix to uni2asc() to cope with zero length Unicode strings.
3676 These are present in some PKCS#12 files.
3679 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3680 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3681 when writing a 32767 byte record.
3682 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3684 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3685 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3687 (RSA objects have a reference count access to which is protected
3688 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3689 so they are meant to be shared between threads.)
3690 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3691 "Reddie, Steven" <Steven.Reddie@ca.com>]
3693 *) Fix a deadlock in CRYPTO_mem_leaks().
3696 *) Use better test patterns in bntest.
3699 *) rand_win.c fix for Borland C.
3702 *) BN_rshift bugfix for n == 0.
3705 *) Add a 'bctest' script that checks for some known 'bc' bugs
3706 so that 'make test' does not abort just because 'bc' is broken.
3709 *) Store verify_result within SSL_SESSION also for client side to
3710 avoid potential security hole. (Re-used sessions on the client side
3711 always resulted in verify_result==X509_V_OK, not using the original
3712 result of the server certificate verification.)
3715 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3716 SSL3_RT_APPLICATION_DATA, return 0.
3717 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3721 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3722 releases, have been re-implemented by renaming the previous
3723 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3724 and ssl3_read_internal, respectively, and adding 'peek' parameters
3725 to them. The new ssl[23]_{read,peek} functions are calls to
3726 ssl[23]_read_internal with the 'peek' flag set appropriately.
3727 A 'peek' parameter has also been added to ssl3_read_bytes, which
3728 does the actual work for ssl3_read_internal.
3731 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3732 the method-specific "init()" handler. Also clean up ex_data after
3733 calling the method-specific "finish()" handler. Previously, this was
3734 happening the other way round.
3737 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3738 The previous value, 12, was not always sufficient for BN_mod_exp().
3741 *) Make sure that shared libraries get the internal name engine with
3742 the full version number and not just 0. This should mark the
3743 shared libraries as not backward compatible. Of course, this should
3744 be changed again when we can guarantee backward binary compatibility.
3747 *) Fix typo in get_cert_by_subject() in by_dir.c
3748 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3750 *) Rework the system to generate shared libraries:
3752 - Make note of the expected extension for the shared libraries and
3753 if there is a need for symbolic links from for example libcrypto.so.0
3754 to libcrypto.so.0.9.7. There is extended info in Configure for
3757 - Make as few rebuilds of the shared libraries as possible.
3759 - Still avoid linking the OpenSSL programs with the shared libraries.
3761 - When installing, install the shared libraries separately from the
3765 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3767 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3768 and not in SSL_clear because the latter is also used by the
3769 accept/connect functions; previously, the settings made by
3770 SSL_set_read_ahead would be lost during the handshake.
3771 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3773 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3774 Previously, it would create entries for disableed algorithms no
3778 *) Added several new manual pages for SSL_* function.
3781 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3783 *) In ssl23_get_client_hello, generate an error message when faced
3784 with an initial SSL 3.0/TLS record that is too small to contain the
3785 first two bytes of the ClientHello message, i.e. client_version.
3786 (Note that this is a pathologic case that probably has never happened
3787 in real life.) The previous approach was to use the version number
3788 from the record header as a substitute; but our protocol choice
3789 should not depend on that one because it is not authenticated
3790 by the Finished messages.
3793 *) More robust randomness gathering functions for Windows.
3794 [Jeffrey Altman <jaltman@columbia.edu>]
3796 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3797 not set then we don't setup the error code for issuer check errors
3798 to avoid possibly overwriting other errors which the callback does
3799 handle. If an application does set the flag then we assume it knows
3800 what it is doing and can handle the new informational codes
3804 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3805 a general "ANY" type, as such it should be able to decode anything
3806 including tagged types. However it didn't check the class so it would
3807 wrongly interpret tagged types in the same way as their universal
3808 counterpart and unknown types were just rejected. Changed so that the
3809 tagged and unknown types are handled in the same way as a SEQUENCE:
3810 that is the encoding is stored intact. There is also a new type
3811 "V_ASN1_OTHER" which is used when the class is not universal, in this
3812 case we have no idea what the actual type is so we just lump them all
3816 *) On VMS, stdout may very well lead to a file that is written to
3817 in a record-oriented fashion. That means that every write() will
3818 write a separate record, which will be read separately by the
3819 programs trying to read from it. This can be very confusing.
3821 The solution is to put a BIO filter in the way that will buffer
3822 text until a linefeed is reached, and then write everything a
3823 line at a time, so every record written will be an actual line,
3824 not chunks of lines and not (usually doesn't happen, but I've
3825 seen it once) several lines in one record. BIO_f_linebuffer() is
3828 Currently, it's a VMS-only method, because that's where it has
3829 been tested well enough.
3832 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3833 it can return incorrect results.
3834 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3835 but it was in 0.9.6-beta[12].)
3838 *) Disable the check for content being present when verifying detached
3839 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3840 include zero length content when signing messages.
3843 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3844 BIO_ctrl (for BIO pairs).
3847 *) Add DSO method for VMS.
3850 *) Bug fix: Montgomery multiplication could produce results with the
3854 *) Add RPM specification openssl.spec and modify it to build three
3855 packages. The default package contains applications, application
3856 documentation and run-time libraries. The devel package contains
3857 include files, static libraries and function documentation. The
3858 doc package contains the contents of the doc directory. The original
3859 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3862 *) Add a large number of documentation files for many SSL routines.
3863 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3865 *) Add a configuration entry for Sony News 4.
3866 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3868 *) Don't set the two most significant bits to one when generating a
3869 random number < q in the DSA library.
3872 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3873 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3874 the underlying transport is blocking) if a handshake took place.
3875 (The default behaviour is needed by applications such as s_client
3876 and s_server that use select() to determine when to use SSL_read;
3877 but for applications that know in advance when to expect data, it
3878 just makes things more complicated.)
3881 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3885 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3886 work better on such systems.
3887 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3889 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3890 Update PKCS12_parse() so it copies the friendlyName and the
3891 keyid to the certificates aux info.
3894 *) Fix bug in PKCS7_verify() which caused an infinite loop
3895 if there was more than one signature.
3896 [Sven Uszpelkat <su@celocom.de>]
3898 *) Major change in util/mkdef.pl to include extra information
3899 about each symbol, as well as presentig variables as well
3900 as functions. This change means that there's n more need
3901 to rebuild the .num files when some algorithms are excluded.
3904 *) Allow the verify time to be set by an application,
3905 rather than always using the current time.
3908 *) Phase 2 verify code reorganisation. The certificate
3909 verify code now looks up an issuer certificate by a
3910 number of criteria: subject name, authority key id
3911 and key usage. It also verifies self signed certificates
3912 by the same criteria. The main comparison function is
3913 X509_check_issued() which performs these checks.
3915 Lot of changes were necessary in order to support this
3916 without completely rewriting the lookup code.
3918 Authority and subject key identifier are now cached.
3920 The LHASH 'certs' is X509_STORE has now been replaced
3921 by a STACK_OF(X509_OBJECT). This is mainly because an
3922 LHASH can't store or retrieve multiple objects with
3923 the same hash value.
3925 As a result various functions (which were all internal
3926 use only) have changed to handle the new X509_STORE
3927 structure. This will break anything that messed round
3928 with X509_STORE internally.
3930 The functions X509_STORE_add_cert() now checks for an
3931 exact match, rather than just subject name.
3933 The X509_STORE API doesn't directly support the retrieval
3934 of multiple certificates matching a given criteria, however
3935 this can be worked round by performing a lookup first
3936 (which will fill the cache with candidate certificates)
3937 and then examining the cache for matches. This is probably
3938 the best we can do without throwing out X509_LOOKUP
3939 entirely (maybe later...).
3941 The X509_VERIFY_CTX structure has been enhanced considerably.
3943 All certificate lookup operations now go via a get_issuer()
3944 callback. Although this currently uses an X509_STORE it
3945 can be replaced by custom lookups. This is a simple way
3946 to bypass the X509_STORE hackery necessary to make this
3947 work and makes it possible to use more efficient techniques
3948 in future. A very simple version which uses a simple
3949 STACK for its trusted certificate store is also provided
3950 using X509_STORE_CTX_trusted_stack().
3952 The verify_cb() and verify() callbacks now have equivalents
3953 in the X509_STORE_CTX structure.
3955 X509_STORE_CTX also has a 'flags' field which can be used
3956 to customise the verify behaviour.
3959 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3960 excludes S/MIME capabilities.
3963 *) When a certificate request is read in keep a copy of the
3964 original encoding of the signed data and use it when outputing
3965 again. Signatures then use the original encoding rather than
3966 a decoded, encoded version which may cause problems if the
3967 request is improperly encoded.
3970 *) For consistency with other BIO_puts implementations, call
3971 buffer_write(b, ...) directly in buffer_puts instead of calling
3974 In BIO_puts, increment b->num_write as in BIO_write.
3975 [Peter.Sylvester@EdelWeb.fr]
3977 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3978 BN_zero, we may not return a BIGNUM with an array consisting of
3982 *) Avoid calling abort() from within the library when problems are
3983 detected, except if preprocessor symbols have been defined
3984 (such as REF_CHECK, BN_DEBUG etc.).
3987 *) New openssl application 'rsautl'. This utility can be
3988 used for low level RSA operations. DER public key
3989 BIO/fp routines also added.
3992 *) New Configure entry and patches for compiling on QNX 4.
3993 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3995 *) A demo state-machine implementation was sponsored by
3996 Nuron (http://www.nuron.com/) and is now available in
3997 demos/state_machine.
4000 *) New options added to the 'dgst' utility for signature
4001 generation and verification.
4004 *) Unrecognized PKCS#7 content types are now handled via a
4005 catch all ASN1_TYPE structure. This allows unsupported
4006 types to be stored as a "blob" and an application can
4007 encode and decode it manually.
4010 *) Fix various signed/unsigned issues to make a_strex.c
4012 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4014 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4015 length if passed a buffer. ASN1_INTEGER_to_BN failed
4016 if passed a NULL BN and its argument was negative.
4017 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4019 *) Modification to PKCS#7 encoding routines to output definite
4020 length encoding. Since currently the whole structures are in
4021 memory there's not real point in using indefinite length
4022 constructed encoding. However if OpenSSL is compiled with
4023 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4026 *) Added BIO_vprintf() and BIO_vsnprintf().
4029 *) Added more prefixes to parse for in the the strings written
4030 through a logging bio, to cover all the levels that are available
4031 through syslog. The prefixes are now:
4033 PANIC, EMERG, EMR => LOG_EMERG
4034 ALERT, ALR => LOG_ALERT
4035 CRIT, CRI => LOG_CRIT
4036 ERROR, ERR => LOG_ERR
4037 WARNING, WARN, WAR => LOG_WARNING
4038 NOTICE, NOTE, NOT => LOG_NOTICE
4039 INFO, INF => LOG_INFO
4040 DEBUG, DBG => LOG_DEBUG
4042 and as before, if none of those prefixes are present at the
4043 beginning of the string, LOG_ERR is chosen.
4045 On Win32, the LOG_* levels are mapped according to this:
4047 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4048 LOG_WARNING => EVENTLOG_WARNING_TYPE
4049 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4053 *) Made it possible to reconfigure with just the configuration
4054 argument "reconf" or "reconfigure". The command line arguments
4055 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4056 and are retrieved from there when reconfiguring.
4060 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4062 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4065 *) The obj_dat.pl script was messing up the sorting of object
4066 names. The reason was that it compared the quoted version
4067 of strings as a result "OCSP" > "OCSP Signing" because
4068 " > SPACE. Changed script to store unquoted versions of
4069 names and add quotes on output. It was also omitting some
4070 names from the lookup table if they were given a default
4071 value (that is if SN is missing it is given the same
4072 value as LN and vice versa), these are now added on the
4073 grounds that if an object has a name we should be able to
4074 look it up. Finally added warning output when duplicate
4075 short or long names are found.
4078 *) Changes needed for Tandem NSK.
4079 [Scott Uroff <scott@xypro.com>]
4081 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4082 RSA_padding_check_SSLv23(), special padding was never detected
4083 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4084 version rollback attacks was not effective.
4086 In s23_clnt.c, don't use special rollback-attack detection padding
4087 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4088 client; similarly, in s23_srvr.c, don't do the rollback check if
4089 SSL 2.0 is the only protocol enabled in the server.
4092 *) Make it possible to get hexdumps of unprintable data with 'openssl
4093 asn1parse'. By implication, the functions ASN1_parse_dump() and
4094 BIO_dump_indent() are added.
4097 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4098 these print out strings and name structures based on various
4099 flags including RFC2253 support and proper handling of
4100 multibyte characters. Added options to the 'x509' utility
4101 to allow the various flags to be set.
4104 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4105 Also change the functions X509_cmp_current_time() and
4106 X509_gmtime_adj() work with an ASN1_TIME structure,
4107 this will enable certificates using GeneralizedTime in validity
4108 dates to be checked.
4111 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4112 negative public key encodings) on by default,
4113 NO_NEG_PUBKEY_BUG can be set to disable it.
4116 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4117 content octets. An i2c_ASN1_OBJECT is unnecessary because
4118 the encoding can be trivially obtained from the structure.
4121 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4122 not read locks (CRYPTO_r_[un]lock).
4125 *) A first attempt at creating official support for shared
4126 libraries through configuration. I've kept it so the
4127 default is static libraries only, and the OpenSSL programs
4128 are always statically linked for now, but there are
4129 preparations for dynamic linking in place.
4130 This has been tested on Linux and Tru64.
4133 *) Randomness polling function for Win9x, as described in:
4134 Peter Gutmann, Software Generation of Practically Strong
4138 *) Fix so PRNG is seeded in req if using an already existing
4142 *) New options to smime application. -inform and -outform
4143 allow alternative formats for the S/MIME message including
4144 PEM and DER. The -content option allows the content to be
4145 specified separately. This should allow things like Netscape
4146 form signing output easier to verify.
4149 *) Fix the ASN1 encoding of tags using the 'long form'.
4152 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4153 STRING types. These convert content octets to and from the
4154 underlying type. The actual tag and length octets are
4155 already assumed to have been read in and checked. These
4156 are needed because all other string types have virtually
4157 identical handling apart from the tag. By having versions
4158 of the ASN1 functions that just operate on content octets
4159 IMPLICIT tagging can be handled properly. It also allows
4160 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4161 and ASN1_INTEGER are identical apart from the tag.
4164 *) Change the handling of OID objects as follows:
4166 - New object identifiers are inserted in objects.txt, following
4167 the syntax given in objects.README.
4168 - objects.pl is used to process obj_mac.num and create a new
4170 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4173 This is currently kind of a hack, and the perl code in objects.pl
4174 isn't very elegant, but it works as I intended. The simplest way
4175 to check that it worked correctly is to look in obj_dat.h and
4176 check the array nid_objs and make sure the objects haven't moved
4177 around (this is important!). Additions are OK, as well as
4178 consistent name changes.
4181 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4184 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4185 The given file adds to whatever has already been seeded into the
4186 random pool through the RANDFILE configuration file option or
4187 environment variable, or the default random state file.
4190 *) mkstack.pl now sorts each macro group into lexical order.
4191 Previously the output order depended on the order the files
4192 appeared in the directory, resulting in needless rewriting
4196 *) Patches to make OpenSSL compile under Win32 again. Mostly
4197 work arounds for the VC++ problem that it treats func() as
4198 func(void). Also stripped out the parts of mkdef.pl that
4199 added extra typesafe functions: these no longer exist.
4202 *) Reorganisation of the stack code. The macros are now all
4203 collected in safestack.h . Each macro is defined in terms of
4204 a "stack macro" of the form SKM_<name>(type, a, b). The
4205 DEBUG_SAFESTACK is now handled in terms of function casts,
4206 this has the advantage of retaining type safety without the
4207 use of additional functions. If DEBUG_SAFESTACK is not defined
4208 then the non typesafe macros are used instead. Also modified the
4209 mkstack.pl script to handle the new form. Needs testing to see
4210 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4211 the default if no major problems. Similar behaviour for ASN1_SET_OF
4212 and PKCS12_STACK_OF.
4215 *) When some versions of IIS use the 'NET' form of private key the
4216 key derivation algorithm is different. Normally MD5(password) is
4217 used as a 128 bit RC4 key. In the modified case
4218 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4219 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4220 as the old Netscape_RSA functions except they have an additional
4221 'sgckey' parameter which uses the modified algorithm. Also added
4222 an -sgckey command line option to the rsa utility. Thanks to
4223 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4224 algorithm to openssl-dev.
4227 *) The evp_local.h macros were using 'c.##kname' which resulted in
4228 invalid expansion on some systems (SCO 5.0.5 for example).
4229 Corrected to 'c.kname'.
4230 [Phillip Porch <root@theporch.com>]
4232 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4233 a STACK of email addresses from a certificate or request, these look
4234 in the subject name and the subject alternative name extensions and
4235 omit any duplicate addresses.
4238 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4239 This makes DSA verification about 2 % faster.
4242 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4243 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4244 plus overhead for 1024 bit moduli).
4245 This makes exponentiations about 0.5 % faster for 1024 bit
4246 exponents (as measured by "openssl speed rsa2048").
4249 *) Rename memory handling macros to avoid conflicts with other
4251 Malloc => OPENSSL_malloc
4252 Malloc_locked => OPENSSL_malloc_locked
4253 Realloc => OPENSSL_realloc
4254 Free => OPENSSL_free
4257 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4258 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4261 *) CygWin32 support.
4262 [John Jarvie <jjarvie@newsguy.com>]
4264 *) The type-safe stack code has been rejigged. It is now only compiled
4265 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4266 by default all type-specific stack functions are "#define"d back to
4267 standard stack functions. This results in more streamlined output
4268 but retains the type-safety checking possibilities of the original
4272 *) The STACK code has been cleaned up, and certain type declarations
4273 that didn't make a lot of sense have been brought in line. This has
4274 also involved a cleanup of sorts in safestack.h to more correctly
4275 map type-safe stack functions onto their plain stack counterparts.
4276 This work has also resulted in a variety of "const"ifications of
4277 lots of the code, especially "_cmp" operations which should normally
4278 be prototyped with "const" parameters anyway.
4281 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4282 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4283 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4284 where all of 'md' is used each time the PRNG is used, but 'state'
4285 is used only indexed by a cyclic counter. As entropy may not be
4286 well distributed from the beginning, 'md' is important as a
4287 chaining variable. However, the output function chains only half
4288 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4289 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4290 in all of 'state' being rewritten, with the new values depending
4291 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4294 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4295 the handshake is continued after ssl_verify_cert_chain();
4296 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4297 can lead to 'unexplainable' connection aborts later.
4298 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4300 *) Major EVP API cipher revision.
4301 Add hooks for extra EVP features. This allows various cipher
4302 parameters to be set in the EVP interface. Support added for variable
4303 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4304 setting of RC2 and RC5 parameters.
4306 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4309 Remove lots of duplicated code from the EVP library. For example *every*
4310 cipher init() function handles the 'iv' in the same way according to the
4311 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4312 for CFB and OFB modes they zero ctx->num.
4314 New functionality allows removal of S/MIME code RC2 hack.
4316 Most of the routines have the same form and so can be declared in terms
4319 By shifting this to the top level EVP_CipherInit() it can be removed from
4320 all individual ciphers. If the cipher wants to handle IVs or keys
4321 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4324 Change lots of functions like EVP_EncryptUpdate() to now return a
4325 value: although software versions of the algorithms cannot fail
4326 any installed hardware versions can.
4329 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4330 this option is set, tolerate broken clients that send the negotiated
4331 protocol version number instead of the requested protocol version
4335 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4336 i.e. non-zero for export ciphersuites, zero otherwise.
4337 Previous versions had this flag inverted, inconsistent with
4338 rsa_tmp_cb (..._TMP_RSA_CB).
4339 [Bodo Moeller; problem reported by Amit Chopra]
4341 *) Add missing DSA library text string. Work around for some IIS
4342 key files with invalid SEQUENCE encoding.
4345 *) Add a document (doc/standards.txt) that list all kinds of standards
4346 and so on that are implemented in OpenSSL.
4349 *) Enhance c_rehash script. Old version would mishandle certificates
4350 with the same subject name hash and wouldn't handle CRLs at all.
4351 Added -fingerprint option to crl utility, to support new c_rehash
4355 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4358 *) Fix for SSL server purpose checking. Server checking was
4359 rejecting certificates which had extended key usage present
4360 but no ssl client purpose.
4361 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4363 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4364 is a little unclear about how a blank password is handled.
4365 Since the password in encoded as a BMPString with terminating
4366 double NULL a zero length password would end up as just the
4367 double NULL. However no password at all is different and is
4368 handled differently in the PKCS#12 key generation code. NS
4369 treats a blank password as zero length. MSIE treats it as no
4370 password on export: but it will try both on import. We now do
4371 the same: PKCS12_parse() tries zero length and no password if
4372 the password is set to "" or NULL (NULL is now a valid password:
4373 it wasn't before) as does the pkcs12 application.
4376 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4377 perror when PEM_read_bio_X509_REQ fails, the error message must
4378 be obtained from the error queue.
4381 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4382 it in ERR_remove_state if appropriate, and change ERR_get_state
4383 accordingly to avoid race conditions (this is necessary because
4384 thread_hash is no longer constant once set).
4387 *) Bugfix for linux-elf makefile.one.
4390 *) RSA_get_default_method() will now cause a default
4391 RSA_METHOD to be chosen if one doesn't exist already.
4392 Previously this was only set during a call to RSA_new()
4393 or RSA_new_method(NULL) meaning it was possible for
4394 RSA_get_default_method() to return NULL.
4397 *) Added native name translation to the existing DSO code
4398 that will convert (if the flag to do so is set) filenames
4399 that are sufficiently small and have no path information
4400 into a canonical native form. Eg. "blah" converted to
4401 "libblah.so" or "blah.dll" etc.
4404 *) New function ERR_error_string_n(e, buf, len) which is like
4405 ERR_error_string(e, buf), but writes at most 'len' bytes
4406 including the 0 terminator. For ERR_error_string_n, 'buf'
4408 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4410 *) CONF library reworked to become more general. A new CONF
4411 configuration file reader "class" is implemented as well as a
4412 new functions (NCONF_*, for "New CONF") to handle it. The now
4413 old CONF_* functions are still there, but are reimplemented to
4414 work in terms of the new functions. Also, a set of functions
4415 to handle the internal storage of the configuration data is
4416 provided to make it easier to write new configuration file
4417 reader "classes" (I can definitely see something reading a
4418 configuration file in XML format, for example), called _CONF_*,
4419 or "the configuration storage API"...
4421 The new configuration file reading functions are:
4423 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4424 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4426 NCONF_default, NCONF_WIN32
4428 NCONF_dump_fp, NCONF_dump_bio
4430 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4431 NCONF_new creates a new CONF object. This works in the same way
4432 as other interfaces in OpenSSL, like the BIO interface.
4433 NCONF_dump_* dump the internal storage of the configuration file,
4434 which is useful for debugging. All other functions take the same
4435 arguments as the old CONF_* functions wth the exception of the
4436 first that must be a `CONF *' instead of a `LHASH *'.
4438 To make it easer to use the new classes with the old CONF_* functions,
4439 the function CONF_set_default_method is provided.
4442 *) Add '-tls1' option to 'openssl ciphers', which was already
4443 mentioned in the documentation but had not been implemented.
4444 (This option is not yet really useful because even the additional
4445 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4448 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4449 OpenSSL-based applications) load shared libraries and bind to
4450 them in a portable way.
4451 [Geoff Thorpe, with contributions from Richard Levitte]
4453 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4455 *) Make sure _lrotl and _lrotr are only used with MSVC.
4457 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4458 (the default implementation of RAND_status).
4460 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4461 to '-clrext' (= clear extensions), as intended and documented.
4462 [Bodo Moeller; inconsistency pointed out by Michael Attili
4465 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4466 was larger than the MD block size.
4467 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4469 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4470 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4471 using the passed key: if the passed key was a private key the result
4472 of X509_print(), for example, would be to print out all the private key
4476 *) des_quad_cksum() byte order bug fix.
4477 [Ulf Möller, using the problem description in krb4-0.9.7, where
4478 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4480 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4482 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4484 *) For easily testing in shell scripts whether some command
4485 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4486 returns with exit code 0 iff no command of the given name is available.
4487 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4488 the output goes to stdout and nothing is printed to stderr.
4489 Additional arguments are always ignored.
4491 Since for each cipher there is a command of the same name,
4492 the 'no-cipher' compilation switches can be tested this way.
4494 ('openssl no-XXX' is not able to detect pseudo-commands such
4495 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4498 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4501 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4502 is set; it will be thrown away anyway because each handshake creates
4504 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4505 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4506 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4507 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4510 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4511 'Q' and 'R' lose their special meanings (quit/renegotiate).
4512 This is part of what -quiet does; unlike -quiet, -ign_eof
4513 does not suppress any output.
4516 *) Add compatibility options to the purpose and trust code. The
4517 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4518 accepts a certificate or CA, this was the previous behaviour,
4519 with all the associated security issues.
4521 X509_TRUST_COMPAT is the old trust behaviour: only and
4522 automatically trust self signed roots in certificate store. A
4523 new trust setting X509_TRUST_DEFAULT is used to specify that
4524 a purpose has no associated trust setting and it should instead
4525 use the value in the default purpose.
4528 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4529 and fix a memory leak.
4532 *) In util/mkerr.pl (which implements 'make errors'), preserve
4533 reason strings from the previous version of the .c file, as
4534 the default to have only downcase letters (and digits) in
4535 automatically generated reasons codes is not always appropriate.
4538 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4539 using strerror. Previously, ERR_reason_error_string() returned
4540 library names as reason strings for SYSerr; but SYSerr is a special
4541 case where small numbers are errno values, not library numbers.
4544 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4545 converts DSA parameters into DH parameters. (When creating parameters,
4546 DSA_generate_parameters is used.)
4549 *) Include 'length' (recommended exponent length) in C code generated
4550 by 'openssl dhparam -C'.
4553 *) The second argument to set_label in perlasm was already being used
4554 so couldn't be used as a "file scope" flag. Moved to third argument
4558 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4559 instead of RAND_bytes for encryption IVs and salts.
4562 *) Include RAND_status() into RAND_METHOD instead of implementing
4563 it only for md_rand.c Otherwise replacing the PRNG by calling
4564 RAND_set_rand_method would be impossible.
4567 *) Don't let DSA_generate_key() enter an infinite loop if the random
4568 number generation fails.
4571 *) New 'rand' application for creating pseudo-random output.
4574 *) Added configuration support for Linux/IA64
4575 [Rolf Haberrecker <rolf@suse.de>]
4577 *) Assembler module support for Mingw32.
4580 *) Shared library support for HPUX (in shlib/).
4581 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4583 *) Shared library support for Solaris gcc.
4584 [Lutz Behnke <behnke@trustcenter.de>]
4586 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4588 *) PKCS7_encrypt() was adding text MIME headers twice because they
4589 were added manually and by SMIME_crlf_copy().
4592 *) In bntest.c don't call BN_rand with zero bits argument.
4593 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4595 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4596 case was implemented. This caused BN_div_recp() to fail occasionally.
4599 *) Add an optional second argument to the set_label() in the perl
4600 assembly language builder. If this argument exists and is set
4601 to 1 it signals that the assembler should use a symbol whose
4602 scope is the entire file, not just the current function. This
4603 is needed with MASM which uses the format label:: for this scope.
4604 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4606 *) Change the ASN1 types so they are typedefs by default. Before
4607 almost all types were #define'd to ASN1_STRING which was causing
4608 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4612 *) Change names of new functions to the new get1/get0 naming
4613 convention: After 'get1', the caller owns a reference count
4614 and has to call ..._free; 'get0' returns a pointer to some
4615 data structure without incrementing reference counters.
4616 (Some of the existing 'get' functions increment a reference
4617 counter, some don't.)
4618 Similarly, 'set1' and 'add1' functions increase reference
4619 counters or duplicate objects.
4622 *) Allow for the possibility of temp RSA key generation failure:
4623 the code used to assume it always worked and crashed on failure.
4626 *) Fix potential buffer overrun problem in BIO_printf().
4627 [Ulf Möller, using public domain code by Patrick Powell; problem
4628 pointed out by David Sacerdote <das33@cornell.edu>]
4630 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4631 RAND_egd() and RAND_status(). In the command line application,
4632 the EGD socket can be specified like a seed file using RANDFILE
4636 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4637 Some CAs (e.g. Verisign) distribute certificates in this form.
4640 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4641 list to exclude them. This means that no special compilation option
4642 is needed to use anonymous DH: it just needs to be included in the
4646 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4647 EVP_MD_type. The old functionality is available in a new macro called
4648 EVP_MD_md(). Change code that uses it and update docs.
4651 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4652 where the 'void *' argument is replaced by a function pointer argument.
4653 Previously 'void *' was abused to point to functions, which works on
4654 many platforms, but is not correct. As these functions are usually
4655 called by macros defined in OpenSSL header files, most source code
4656 should work without changes.
4659 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4660 sections with information on -D... compiler switches used for
4661 compiling the library so that applications can see them. To enable
4662 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4663 must be defined. E.g.,
4664 #define OPENSSL_ALGORITHM_DEFINES
4665 #include <openssl/opensslconf.h>
4666 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4667 [Richard Levitte, Ulf and Bodo Möller]
4669 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4673 *) Change the 'other' type in certificate aux info to a STACK_OF
4674 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4675 the required ASN1 format: arbitrary types determined by an OID.
4678 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4679 argument to 'req'. This is not because the function is newer or
4680 better than others it just uses the work 'NEW' in the certificate
4681 request header lines. Some software needs this.
4684 *) Reorganise password command line arguments: now passwords can be
4685 obtained from various sources. Delete the PEM_cb function and make
4686 it the default behaviour: i.e. if the callback is NULL and the
4687 usrdata argument is not NULL interpret it as a null terminated pass
4688 phrase. If usrdata and the callback are NULL then the pass phrase
4689 is prompted for as usual.
4692 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4693 the support is automatically enabled. The resulting binaries will
4694 autodetect the card and use it if present.
4695 [Ben Laurie and Compaq Inc.]
4697 *) Work around for Netscape hang bug. This sends certificate request
4698 and server done in one record. Since this is perfectly legal in the
4699 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4700 the bugs/SSLv3 entry for more info.
4703 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4706 *) Add -rand argument to smime and pkcs12 applications and read/write
4710 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4713 *) Add command line password options to the remaining applications.
4716 *) Bug fix for BN_div_recp() for numerators with an even number of
4720 *) More tests in bntest.c, and changed test_bn output.
4723 *) ./config recognizes MacOS X now.
4726 *) Bug fix for BN_div() when the first words of num and divsor are
4727 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4730 *) Add support for various broken PKCS#8 formats, and command line
4731 options to produce them.
4734 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4735 get temporary BIGNUMs from a BN_CTX.
4738 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4742 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4743 include a #define from the old name to the new. The original intent
4744 was that statically linked binaries could for example just call
4745 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4746 link with digests. This never worked becayse SSLeay_add_all_digests()
4747 and SSLeay_add_all_ciphers() were in the same source file so calling
4748 one would link with the other. They are now in separate source files.
4751 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4754 *) Use a less unusual form of the Miller-Rabin primality test (it used
4755 a binary algorithm for exponentiation integrated into the Miller-Rabin
4756 loop, our standard modexp algorithms are faster).
4759 *) Support for the EBCDIC character set completed.
4760 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4762 *) Source code cleanups: use const where appropriate, eliminate casts,
4763 use void * instead of char * in lhash.
4766 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4767 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4768 this the server could overwrite ephemeral keys that the client
4772 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4773 using 50 iterations of the Rabin-Miller test.
4775 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4776 iterations of the Rabin-Miller test as required by the appendix
4777 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4778 As BN_is_prime_fasttest includes trial division, DSA parameter
4779 generation becomes much faster.
4781 This implies a change for the callback functions in DSA_is_prime
4782 and DSA_generate_parameters: The callback function is called once
4783 for each positive witness in the Rabin-Miller test, not just
4784 occasionally in the inner loop; and the parameters to the
4785 callback function now provide an iteration count for the outer
4786 loop rather than for the current invocation of the inner loop.
4787 DSA_generate_parameters additionally can call the callback
4788 function with an 'iteration count' of -1, meaning that a
4789 candidate has passed the trial division test (when q is generated
4790 from an application-provided seed, trial division is skipped).
4793 *) New function BN_is_prime_fasttest that optionally does trial
4794 division before starting the Rabin-Miller test and has
4795 an additional BN_CTX * argument (whereas BN_is_prime always
4796 has to allocate at least one BN_CTX).
4797 'callback(1, -1, cb_arg)' is called when a number has passed the
4798 trial division stage.
4801 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4805 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4808 *) New function BN_pseudo_rand().
4811 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4812 bignum version of BN_from_montgomery() with the working code from
4813 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4817 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4818 made it impossible to use the same SSL_SESSION data structure in
4819 SSL2 clients in multiple threads.
4822 *) The return value of RAND_load_file() no longer counts bytes obtained
4823 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4824 to seed the PRNG (previously an explicit byte count was required).
4825 [Ulf Möller, Bodo Möller]
4827 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4828 used (char *) instead of (void *) and had casts all over the place.
4831 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4834 *) Retain source code compatibility for BN_prime_checks macro:
4835 BN_is_prime(..., BN_prime_checks, ...) now uses
4836 BN_prime_checks_for_size to determine the appropriate number of
4837 Rabin-Miller iterations.
4840 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4841 DH_CHECK_P_NOT_SAFE_PRIME.
4842 (Check if this is true? OpenPGP calls them "strong".)
4845 *) Merge the functionality of "dh" and "gendh" programs into a new program
4846 "dhparam". The old programs are retained for now but will handle DH keys
4847 (instead of parameters) in future.
4850 *) Make the ciphers, s_server and s_client programs check the return values
4851 when a new cipher list is set.
4854 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4855 ciphers. Before when the 56bit ciphers were enabled the sorting was
4858 The syntax for the cipher sorting has been extended to support sorting by
4859 cipher-strength (using the strength_bits hard coded in the tables).
4860 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4862 Fix a bug in the cipher-command parser: when supplying a cipher command
4863 string with an "undefined" symbol (neither command nor alphanumeric
4864 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4865 an error is flagged.
4867 Due to the strength-sorting extension, the code of the
4868 ssl_create_cipher_list() function was completely rearranged. I hope that
4869 the readability was also increased :-)
4870 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4872 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4873 for the first serial number and places 2 in the serial number file. This
4874 avoids problems when the root CA is created with serial number zero and
4875 the first user certificate has the same issuer name and serial number
4879 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4880 the new code. Add documentation for this stuff.
4883 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4884 X509_*() to X509at_*() on the grounds that they don't handle X509
4885 structures and behave in an analagous way to the X509v3 functions:
4886 they shouldn't be called directly but wrapper functions should be used
4889 So we also now have some wrapper functions that call the X509at functions
4890 when passed certificate requests. (TO DO: similar things can be done with
4891 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4892 things. Some of these need some d2i or i2d and print functionality
4893 because they handle more complex structures.)
4896 *) Add missing #ifndefs that caused missing symbols when building libssl
4897 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4898 NO_RSA in ssl/s2*.c.
4899 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4901 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4902 has a return value which indicates the quality of the random data
4903 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4904 error queue. New function RAND_pseudo_bytes() generates output that is
4905 guaranteed to be unique but not unpredictable. RAND_add is like
4906 RAND_seed, but takes an extra argument for an entropy estimate
4907 (RAND_seed always assumes full entropy).
4910 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4911 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4912 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4913 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4914 false-positive rate of at most 2^-80 for random input.
4917 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4920 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4921 in the 0.9.5 release), this returns the chain
4922 from an X509_CTX structure with a dup of the stack and all
4923 the X509 reference counts upped: so the stack will exist
4924 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4927 Also make SSL_SESSION_print() print out the verify return
4931 *) Add manpage for the pkcs12 command. Also change the default
4932 behaviour so MAC iteration counts are used unless the new
4933 -nomaciter option is used. This improves file security and
4934 only older versions of MSIE (4.0 for example) need it.
4937 *) Honor the no-xxx Configure options when creating .DEF files.
4940 *) Add PKCS#10 attributes to field table: challengePassword,
4941 unstructuredName and unstructuredAddress. These are taken from
4942 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4943 international characters are used.
4945 More changes to X509_ATTRIBUTE code: allow the setting of types
4946 based on strings. Remove the 'loc' parameter when adding
4947 attributes because these will be a SET OF encoding which is sorted
4951 *) Initial changes to the 'req' utility to allow request generation
4952 automation. This will allow an application to just generate a template
4953 file containing all the field values and have req construct the
4956 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4957 used all over the place including certificate requests and PKCS#7
4958 structures. They are currently handled manually where necessary with
4959 some primitive wrappers for PKCS#7. The new functions behave in a
4960 manner analogous to the X509 extension functions: they allow
4961 attributes to be looked up by NID and added.
4963 Later something similar to the X509V3 code would be desirable to
4964 automatically handle the encoding, decoding and printing of the
4965 more complex types. The string types like challengePassword can
4966 be handled by the string table functions.
4968 Also modified the multi byte string table handling. Now there is
4969 a 'global mask' which masks out certain types. The table itself
4970 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4971 is useful when for example there is only one permissible type
4972 (as in countryName) and using the mask might result in no valid
4976 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4977 SSL_get_peer_finished to allow applications to obtain the latest
4978 Finished messages sent to the peer or expected from the peer,
4979 respectively. (SSL_get_peer_finished is usually the Finished message
4980 actually received from the peer, otherwise the protocol will be aborted.)
4982 As the Finished message are message digests of the complete handshake
4983 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4984 be used for external authentication procedures when the authentication
4985 provided by SSL/TLS is not desired or is not enough.
4988 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4989 the host supports BWX extension and if Compaq C is present on the
4990 $PATH. Just exploiting of the BWX extension results in 20-30%
4991 performance kick for some algorithms, e.g. DES and RC4 to mention
4992 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4996 *) Add support for MS "fast SGC". This is arguably a violation of the
4997 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4998 weak crypto and after checking the certificate is SGC a second one
4999 with strong crypto. MS SGC stops the first handshake after receiving
5000 the server certificate message and sends a second client hello. Since
5001 a server will typically do all the time consuming operations before
5002 expecting any further messages from the client (server key exchange
5003 is the most expensive) there is little difference between the two.
5005 To get OpenSSL to support MS SGC we have to permit a second client
5006 hello message after we have sent server done. In addition we have to
5007 reset the MAC if we do get this second client hello.
5010 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5011 if a DER encoded private key is RSA or DSA traditional format. Changed
5012 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5013 format DER encoded private key. Newer code should use PKCS#8 format which
5014 has the key type encoded in the ASN1 structure. Added DER private key
5015 support to pkcs8 application.
5018 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5019 ciphersuites has been selected (as required by the SSL 3/TLS 1
5020 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5021 is set, we interpret this as a request to violate the specification
5022 (the worst that can happen is a handshake failure, and 'correct'
5023 behaviour would result in a handshake failure anyway).
5026 *) In SSL_CTX_add_session, take into account that there might be multiple
5027 SSL_SESSION structures with the same session ID (e.g. when two threads
5028 concurrently obtain them from an external cache).
5029 The internal cache can handle only one SSL_SESSION with a given ID,
5030 so if there's a conflict, we now throw out the old one to achieve
5034 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5035 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5036 some routines that use cipher OIDs: some ciphers do not have OIDs
5037 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5041 *) Simplify the trust setting structure and code. Now we just have
5042 two sequences of OIDs for trusted and rejected settings. These will
5043 typically have values the same as the extended key usage extension
5044 and any application specific purposes.
5046 The trust checking code now has a default behaviour: it will just
5047 check for an object with the same NID as the passed id. Functions can
5048 be provided to override either the default behaviour or the behaviour
5049 for a given id. SSL client, server and email already have functions
5050 in place for compatibility: they check the NID and also return "trusted"
5051 if the certificate is self signed.
5054 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5055 traditional format into an EVP_PKEY structure.
5058 *) Add a password callback function PEM_cb() which either prompts for
5059 a password if usr_data is NULL or otherwise assumes it is a null
5060 terminated password. Allow passwords to be passed on command line
5061 environment or config files in a few more utilities.
5064 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5065 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5066 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5067 Update documentation.
5070 *) Support for ASN1 "NULL" type. This could be handled before by using
5071 ASN1_TYPE but there wasn't any function that would try to read a NULL
5072 and produce an error if it couldn't. For compatibility we also have
5073 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5074 don't allocate anything because they don't need to.
5077 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5079 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5081 *) Rebuild of the memory allocation routines used by OpenSSL code and
5082 possibly others as well. The purpose is to make an interface that
5083 provide hooks so anyone can build a separate set of allocation and
5084 deallocation routines to be used by OpenSSL, for example memory
5085 pool implementations, or something else, which was previously hard
5086 since Malloc(), Realloc() and Free() were defined as macros having
5087 the values malloc, realloc and free, respectively (except for Win32
5088 compilations). The same is provided for memory debugging code.
5089 OpenSSL already comes with functionality to find memory leaks, but
5090 this gives people a chance to debug other memory problems.
5092 With these changes, a new set of functions and macros have appeared:
5094 CRYPTO_set_mem_debug_functions() [F]
5095 CRYPTO_get_mem_debug_functions() [F]
5096 CRYPTO_dbg_set_options() [F]
5097 CRYPTO_dbg_get_options() [F]
5098 CRYPTO_malloc_debug_init() [M]
5100 The memory debug functions are NULL by default, unless the library
5101 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5102 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5103 gives the standard debugging functions that come with OpenSSL) or
5104 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5105 provided by the library user) must be used. When the standard
5106 debugging functions are used, CRYPTO_dbg_set_options can be used to
5107 request additional information:
5108 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5109 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5111 Also, things like CRYPTO_set_mem_functions will always give the
5112 expected result (the new set of functions is used for allocation
5113 and deallocation) at all times, regardless of platform and compiler
5116 To finish it up, some functions that were never use in any other
5117 way than through macros have a new API and new semantic:
5120 CRYPTO_dbg_realloc()
5123 All macros of value have retained their old syntax.
5124 [Richard Levitte and Bodo Moeller]
5126 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5127 ordering of SMIMECapabilities wasn't in "strength order" and there
5128 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5132 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5133 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5134 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5136 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5137 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5138 functionality to handle multipart/signed properly) and a utility
5139 called 'smime' to call all this stuff. This is based on code I
5140 originally wrote for Celo who have kindly allowed it to be
5141 included in OpenSSL.
5144 *) Add variants des_set_key_checked and des_set_key_unchecked of
5145 des_set_key (aka des_key_sched). Global variable des_check_key
5146 decides which of these is called by des_set_key; this way
5147 des_check_key behaves as it always did, but applications and
5148 the library itself, which was buggy for des_check_key == 1,
5149 have a cleaner way to pick the version they need.
5152 *) New function PKCS12_newpass() which changes the password of a
5156 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5157 dynamic mix. In both cases the ids can be used as an index into the
5158 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5159 functions so they accept a list of the field values and the
5160 application doesn't need to directly manipulate the X509_TRUST
5164 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5168 *) Modify the way the V3 extension code looks up extensions. This now
5169 works in a similar way to the object code: we have some "standard"
5170 extensions in a static table which is searched with OBJ_bsearch()
5171 and the application can add dynamic ones if needed. The file
5172 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5173 updated whenever a new extension is added to the core code and kept
5174 in ext_nid order. There is a simple program 'tabtest.c' which checks
5175 this. New extensions are not added too often so this file can readily
5176 be maintained manually.
5178 There are two big advantages in doing things this way. The extensions
5179 can be looked up immediately and no longer need to be "added" using
5180 X509V3_add_standard_extensions(): this function now does nothing.
5181 [Side note: I get *lots* of email saying the extension code doesn't
5182 work because people forget to call this function]
5183 Also no dynamic allocation is done unless new extensions are added:
5184 so if we don't add custom extensions there is no need to call
5185 X509V3_EXT_cleanup().
5188 *) Modify enc utility's salting as follows: make salting the default. Add a
5189 magic header, so unsalted files fail gracefully instead of just decrypting
5190 to garbage. This is because not salting is a big security hole, so people
5191 should be discouraged from doing it.
5194 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5195 digest to be passed on the command line but it only used this
5196 parameter when signing a certificate. Modified so all relevant
5197 operations are affected by the digest parameter including the
5198 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5199 DSA key was used because it didn't fix the digest.
5202 *) Initial certificate chain verify code. Currently tests the untrusted
5203 certificates for consistency with the verify purpose (which is set
5204 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5206 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5207 this is because it will reject chains with invalid extensions whereas
5208 every previous version of OpenSSL and SSLeay made no checks at all.
5210 Trust code: checks the root CA for the relevant trust settings. Trust
5211 settings have an initial value consistent with the verify purpose: e.g.
5212 if the verify purpose is for SSL client use it expects the CA to be
5213 trusted for SSL client use. However the default value can be changed to
5214 permit custom trust settings: one example of this would be to only trust
5215 certificates from a specific "secure" set of CAs.
5217 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5218 which should be used for version portability: especially since the
5219 verify structure is likely to change more often now.
5221 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5222 to set them. If not set then assume SSL clients will verify SSL servers
5225 Two new options to the verify program: -untrusted allows a set of
5226 untrusted certificates to be passed in and -purpose which sets the
5227 intended purpose of the certificate. If a purpose is set then the
5228 new chain verify code is used to check extension consistency.
5231 *) Support for the authority information access extension.
5234 *) Modify RSA and DSA PEM read routines to transparently handle
5235 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5236 public keys in a format compatible with certificate
5237 SubjectPublicKeyInfo structures. Unfortunately there were already
5238 functions called *_PublicKey_* which used various odd formats so
5239 these are retained for compatibility: however the DSA variants were
5240 never in a public release so they have been deleted. Changed dsa/rsa
5241 utilities to handle the new format: note no releases ever handled public
5242 keys so we should be OK.
5244 The primary motivation for this change is to avoid the same fiasco
5245 that dogs private keys: there are several incompatible private key
5246 formats some of which are standard and some OpenSSL specific and
5247 require various evil hacks to allow partial transparent handling and
5248 even then it doesn't work with DER formats. Given the option anything
5249 other than PKCS#8 should be dumped: but the other formats have to
5250 stay in the name of compatibility.
5252 With public keys and the benefit of hindsight one standard format
5253 is used which works with EVP_PKEY, RSA or DSA structures: though
5254 it clearly returns an error if you try to read the wrong kind of key.
5256 Added a -pubkey option to the 'x509' utility to output the public key.
5257 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5258 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5259 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5260 that do the same as the EVP_PKEY_assign_*() except they up the
5261 reference count of the added key (they don't "swallow" the
5265 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5266 CRLs would fail if the file contained no certificates or no CRLs:
5267 added a new function to read in both types and return the number
5268 read: this means that if none are read it will be an error. The
5269 DER versions of the certificate and CRL reader would always fail
5270 because it isn't possible to mix certificates and CRLs in DER format
5271 without choking one or the other routine. Changed this to just read
5272 a certificate: this is the best we can do. Also modified the code
5273 in apps/verify.c to take notice of return codes: it was previously
5274 attempting to read in certificates from NULL pointers and ignoring
5275 any errors: this is one reason why the cert and CRL reader seemed
5276 to work. It doesn't check return codes from the default certificate
5277 routines: these may well fail if the certificates aren't installed.
5280 *) Code to support otherName option in GeneralName.
5283 *) First update to verify code. Change the verify utility
5284 so it warns if it is passed a self signed certificate:
5285 for consistency with the normal behaviour. X509_verify
5286 has been modified to it will now verify a self signed
5287 certificate if *exactly* the same certificate appears
5288 in the store: it was previously impossible to trust a
5289 single self signed certificate. This means that:
5290 openssl verify ss.pem
5291 now gives a warning about a self signed certificate but
5292 openssl verify -CAfile ss.pem ss.pem
5296 *) For servers, store verify_result in SSL_SESSION data structure
5297 (and add it to external session representation).
5298 This is needed when client certificate verifications fails,
5299 but an application-provided verification callback (set by
5300 SSL_CTX_set_cert_verify_callback) allows accepting the session
5301 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5302 but returns 1): When the session is reused, we have to set
5303 ssl->verify_result to the appropriate error code to avoid
5305 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5307 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5308 case in PKCS7_dataInit() where the signed PKCS7 structure
5309 didn't contain any existing data because it was being created.
5310 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5312 *) Add a salt to the key derivation routines in enc.c. This
5313 forms the first 8 bytes of the encrypted file. Also add a
5314 -S option to allow a salt to be input on the command line.
5317 *) New function X509_cmp(). Oddly enough there wasn't a function
5318 to compare two certificates. We do this by working out the SHA1
5319 hash and comparing that. X509_cmp() will be needed by the trust
5323 *) SSL_get1_session() is like SSL_get_session(), but increments
5324 the reference count in the SSL_SESSION returned.
5325 [Geoff Thorpe <geoff@eu.c2.net>]
5327 *) Fix for 'req': it was adding a null to request attributes.
5328 Also change the X509_LOOKUP and X509_INFO code to handle
5329 certificate auxiliary information.
5332 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5336 *) Add the possibility to add extra information to the memory leak
5337 detecting output, to form tracebacks, showing from where each
5338 allocation was originated: CRYPTO_push_info("constant string") adds
5339 the string plus current file name and line number to a per-thread
5340 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5341 is like calling CYRPTO_pop_info() until the stack is empty.
5342 Also updated memory leak detection code to be multi-thread-safe.
5345 *) Add options -text and -noout to pkcs7 utility and delete the
5346 encryption options which never did anything. Update docs.
5349 *) Add options to some of the utilities to allow the pass phrase
5350 to be included on either the command line (not recommended on
5351 OSes like Unix) or read from the environment. Update the
5352 manpages and fix a few bugs.
5355 *) Add a few manpages for some of the openssl commands.
5358 *) Fix the -revoke option in ca. It was freeing up memory twice,
5359 leaking and not finding already revoked certificates.
5362 *) Extensive changes to support certificate auxiliary information.
5363 This involves the use of X509_CERT_AUX structure and X509_AUX
5364 functions. An X509_AUX function such as PEM_read_X509_AUX()
5365 can still read in a certificate file in the usual way but it
5366 will also read in any additional "auxiliary information". By
5367 doing things this way a fair degree of compatibility can be
5368 retained: existing certificates can have this information added
5369 using the new 'x509' options.
5371 Current auxiliary information includes an "alias" and some trust
5372 settings. The trust settings will ultimately be used in enhanced
5373 certificate chain verification routines: currently a certificate
5374 can only be trusted if it is self signed and then it is trusted
5378 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5379 The problem was that one of the replacement routines had not been working
5380 since SSLeay releases. For now the offending routine has been replaced
5381 with non-optimised assembler. Even so, this now gives around 95%
5382 performance improvement for 1024 bit RSA signs.
5385 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5386 handling. Most clients have the effective key size in bits equal to
5387 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5388 A few however don't do this and instead use the size of the decrypted key
5389 to determine the RC2 key length and the AlgorithmIdentifier to determine
5390 the effective key length. In this case the effective key length can still
5391 be 40 bits but the key length can be 168 bits for example. This is fixed
5392 by manually forcing an RC2 key into the EVP_PKEY structure because the
5393 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5394 the key length and effective key length are equal.
5397 *) Add a bunch of functions that should simplify the creation of
5398 X509_NAME structures. Now you should be able to do:
5399 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5400 and have it automatically work out the correct field type and fill in
5401 the structures. The more adventurous can try:
5402 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5403 and it will (hopefully) work out the correct multibyte encoding.
5406 *) Change the 'req' utility to use the new field handling and multibyte
5407 copy routines. Before the DN field creation was handled in an ad hoc
5408 way in req, ca, and x509 which was rather broken and didn't support
5409 BMPStrings or UTF8Strings. Since some software doesn't implement
5410 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5411 using the dirstring_type option. See the new comment in the default
5412 openssl.cnf for more info.
5415 *) Make crypto/rand/md_rand.c more robust:
5416 - Assure unique random numbers after fork().
5417 - Make sure that concurrent threads access the global counter and
5418 md serializably so that we never lose entropy in them
5419 or use exactly the same state in multiple threads.
5420 Access to the large state is not always serializable because
5421 the additional locking could be a performance killer, and
5422 md should be large enough anyway.
5425 *) New file apps/app_rand.c with commonly needed functionality
5426 for handling the random seed file.
5428 Use the random seed file in some applications that previously did not:
5430 dsaparam -genkey (which also ignored its '-rand' option),
5433 x509 (when signing).
5434 Except on systems with /dev/urandom, it is crucial to have a random
5435 seed file at least for key creation, DSA signing, and for DH exchanges;
5436 for RSA signatures we could do without one.
5438 gendh and gendsa (unlike genrsa) used to read only the first byte
5439 of each file listed in the '-rand' option. The function as previously
5440 found in genrsa is now in app_rand.c and is used by all programs
5441 that support '-rand'.
5444 *) In RAND_write_file, use mode 0600 for creating files;
5445 don't just chmod when it may be too late.
5448 *) Report an error from X509_STORE_load_locations
5449 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5452 *) New function ASN1_mbstring_copy() this copies a string in either
5453 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5454 into an ASN1_STRING type. A mask of permissible types is passed
5455 and it chooses the "minimal" type to use or an error if not type
5459 *) Add function equivalents to the various macros in asn1.h. The old
5460 macros are retained with an M_ prefix. Code inside the library can
5461 use the M_ macros. External code (including the openssl utility)
5462 should *NOT* in order to be "shared library friendly".
5465 *) Add various functions that can check a certificate's extensions
5466 to see if it usable for various purposes such as SSL client,
5467 server or S/MIME and CAs of these types. This is currently
5468 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5469 verification. Also added a -purpose flag to x509 utility to
5470 print out all the purposes.
5473 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5477 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5478 for, obtain and decode and extension and obtain its critical flag.
5479 This allows all the necessary extension code to be handled in a
5480 single function call.
5483 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5484 platforms. See crypto/rc4/rc4_enc.c for further details.
5487 *) New -noout option to asn1parse. This causes no output to be produced
5488 its main use is when combined with -strparse and -out to extract data
5489 from a file (which may not be in ASN.1 format).
5492 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5493 when producing the local key id.
5494 [Richard Levitte <levitte@stacken.kth.se>]
5496 *) New option -dhparam in s_server. This allows a DH parameter file to be
5497 stated explicitly. If it is not stated then it tries the first server
5498 certificate file. The previous behaviour hard coded the filename
5502 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5503 a public key to be input or output. For example:
5504 openssl rsa -in key.pem -pubout -out pubkey.pem
5505 Also added necessary DSA public key functions to handle this.
5508 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5509 in the message. This was handled by allowing
5510 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5511 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5513 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5514 to the end of the strings whereas this didn't. This would cause problems
5515 if strings read with d2i_ASN1_bytes() were later modified.
5516 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5518 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5519 data and it contains EOF it will end up returning an error. This is
5520 caused by input 46 bytes long. The cause is due to the way base64
5521 BIOs find the start of base64 encoded data. They do this by trying a
5522 trial decode on each line until they find one that works. When they
5523 do a flag is set and it starts again knowing it can pass all the
5524 data directly through the decoder. Unfortunately it doesn't reset
5525 the context it uses. This means that if EOF is reached an attempt
5526 is made to pass two EOFs through the context and this causes the
5527 resulting error. This can also cause other problems as well. As is
5528 usual with these problems it takes *ages* to find and the fix is
5529 trivial: move one line.
5530 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5532 *) Ugly workaround to get s_client and s_server working under Windows. The
5533 old code wouldn't work because it needed to select() on sockets and the
5534 tty (for keypresses and to see if data could be written). Win32 only
5535 supports select() on sockets so we select() with a 1s timeout on the
5536 sockets and then see if any characters are waiting to be read, if none
5537 are present then we retry, we also assume we can always write data to
5538 the tty. This isn't nice because the code then blocks until we've
5539 received a complete line of data and it is effectively polling the
5540 keyboard at 1s intervals: however it's quite a bit better than not
5541 working at all :-) A dedicated Windows application might handle this
5542 with an event loop for example.
5545 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5546 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5547 will be called when RSA_sign() and RSA_verify() are used. This is useful
5548 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5549 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5550 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5551 This necessitated the support of an extra signature type NID_md5_sha1
5552 for SSL signatures and modifications to the SSL library to use it instead
5553 of calling RSA_public_decrypt() and RSA_private_encrypt().
5556 *) Add new -verify -CAfile and -CApath options to the crl program, these
5557 will lookup a CRL issuers certificate and verify the signature in a
5558 similar way to the verify program. Tidy up the crl program so it
5559 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5560 less strict. It will now permit CRL extensions even if it is not
5561 a V2 CRL: this will allow it to tolerate some broken CRLs.
5564 *) Initialize all non-automatic variables each time one of the openssl
5565 sub-programs is started (this is necessary as they may be started
5566 multiple times from the "OpenSSL>" prompt).
5567 [Lennart Bang, Bodo Moeller]
5569 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5570 removing all other RSA functionality (this is what NO_RSA does). This
5571 is so (for example) those in the US can disable those operations covered
5572 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5576 *) Non-copying interface to BIO pairs.
5577 (still largely untested)
5580 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5581 ASCII string. This was handled independently in various places before.
5584 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5585 UTF8 strings a character at a time.
5588 *) Use client_version from client hello to select the protocol
5589 (s23_srvr.c) and for RSA client key exchange verification
5590 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5593 *) Add various utility functions to handle SPKACs, these were previously
5594 handled by poking round in the structure internals. Added new function
5595 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5596 print, verify and generate SPKACs. Based on an original idea from
5597 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5600 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5603 *) Allow the config file extension section to be overwritten on the
5604 command line. Based on an original idea from Massimiliano Pala
5605 <madwolf@comune.modena.it>. The new option is called -extensions
5606 and can be applied to ca, req and x509. Also -reqexts to override
5607 the request extensions in req and -crlexts to override the crl extensions
5611 *) Add new feature to the SPKAC handling in ca. Now you can include
5612 the same field multiple times by preceding it by "XXXX." for example:
5615 this is the same syntax as used in the req config file.
5618 *) Allow certificate extensions to be added to certificate requests. These
5619 are specified in a 'req_extensions' option of the req section of the
5620 config file. They can be printed out with the -text option to req but
5621 are otherwise ignored at present.
5624 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5625 data read consists of only the final block it would not decrypted because
5626 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5627 A misplaced 'break' also meant the decrypted final block might not be
5628 copied until the next read.
5631 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5632 a few extra parameters to the DH structure: these will be useful if
5633 for example we want the value of 'q' or implement X9.42 DH.
5636 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5637 provides hooks that allow the default DSA functions or functions on a
5638 "per key" basis to be replaced. This allows hardware acceleration and
5639 hardware key storage to be handled without major modification to the
5640 library. Also added low level modexp hooks and CRYPTO_EX structure and
5641 associated functions.
5644 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5645 as "read only": it can't be written to and the buffer it points to will
5646 not be freed. Reading from a read only BIO is much more efficient than
5647 a normal memory BIO. This was added because there are several times when
5648 an area of memory needs to be read from a BIO. The previous method was
5649 to create a memory BIO and write the data to it, this results in two
5650 copies of the data and an O(n^2) reading algorithm. There is a new
5651 function BIO_new_mem_buf() which creates a read only memory BIO from
5652 an area of memory. Also modified the PKCS#7 routines to use read only
5656 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5657 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5658 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5659 but a retry condition occured while trying to read the rest.
5662 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5663 NID_pkcs7_encrypted by default: this was wrong since this should almost
5664 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5665 the encrypted data type: this is a more sensible place to put it and it
5666 allows the PKCS#12 code to be tidied up that duplicated this
5670 *) Changed obj_dat.pl script so it takes its input and output files on
5671 the command line. This should avoid shell escape redirection problems
5675 *) Initial support for certificate extension requests, these are included
5676 in things like Xenroll certificate requests. Included functions to allow
5677 extensions to be obtained and added.
5680 *) -crlf option to s_client and s_server for sending newlines as
5681 CRLF (as required by many protocols).
5684 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5686 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5687 [Ralf S. Engelschall]
5689 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5690 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5692 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5696 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5697 DH parameters/keys (q is lost during that conversion, but the resulting
5698 DH parameters contain its length).
5700 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5701 much faster than DH_generate_parameters (which creates parameters
5702 where p = 2*q + 1), and also the smaller q makes DH computations
5703 much more efficient (160-bit exponentiation instead of 1024-bit
5704 exponentiation); so this provides a convenient way to support DHE
5705 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5706 utter importance to use
5707 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5709 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5710 when such DH parameters are used, because otherwise small subgroup
5711 attacks may become possible!
5714 *) Avoid memory leak in i2d_DHparams.
5717 *) Allow the -k option to be used more than once in the enc program:
5718 this allows the same encrypted message to be read by multiple recipients.
5721 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5722 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5723 it will always use the numerical form of the OID, even if it has a short
5727 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5728 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5729 otherwise bn_mod_exp was called. In the case of hardware keys for example
5730 no private key components need be present and it might store extra data
5731 in the RSA structure, which cannot be accessed from bn_mod_exp.
5732 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5733 private key operations.
5736 *) Added support for SPARC Linux.
5739 *) pem_password_cb function type incompatibly changed from
5740 typedef int pem_password_cb(char *buf, int size, int rwflag);
5742 ....(char *buf, int size, int rwflag, void *userdata);
5743 so that applications can pass data to their callbacks:
5744 The PEM[_ASN1]_{read,write}... functions and macros now take an
5745 additional void * argument, which is just handed through whenever
5746 the password callback is called.
5747 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5749 New function SSL_CTX_set_default_passwd_cb_userdata.
5751 Compatibility note: As many C implementations push function arguments
5752 onto the stack in reverse order, the new library version is likely to
5753 interoperate with programs that have been compiled with the old
5754 pem_password_cb definition (PEM_whatever takes some data that
5755 happens to be on the stack as its last argument, and the callback
5756 just ignores this garbage); but there is no guarantee whatsoever that
5759 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5760 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5761 problems not only on Windows, but also on some Unix platforms.
5762 To avoid problematic command lines, these definitions are now in an
5763 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5764 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5767 *) MIPS III/IV assembler module is reimplemented.
5770 *) More DES library cleanups: remove references to srand/rand and
5771 delete an unused file.
5774 *) Add support for the the free Netwide assembler (NASM) under Win32,
5775 since not many people have MASM (ml) and it can be hard to obtain.
5776 This is currently experimental but it seems to work OK and pass all
5777 the tests. Check out INSTALL.W32 for info.
5780 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5781 without temporary keys kept an extra copy of the server key,
5782 and connections with temporary keys did not free everything in case
5786 *) New function RSA_check_key and new openssl rsa option -check
5787 for verifying the consistency of RSA keys.
5788 [Ulf Moeller, Bodo Moeller]
5790 *) Various changes to make Win32 compile work:
5791 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5792 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5793 comparison" warnings.
5794 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5797 *) Add a debugging option to PKCS#5 v2 key generation function: when
5798 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5799 derived keys are printed to stderr.
5802 *) Copy the flags in ASN1_STRING_dup().
5803 [Roman E. Pavlov <pre@mo.msk.ru>]
5805 *) The x509 application mishandled signing requests containing DSA
5806 keys when the signing key was also DSA and the parameters didn't match.
5808 It was supposed to omit the parameters when they matched the signing key:
5809 the verifying software was then supposed to automatically use the CA's
5810 parameters if they were absent from the end user certificate.
5812 Omitting parameters is no longer recommended. The test was also
5813 the wrong way round! This was probably due to unusual behaviour in
5814 EVP_cmp_parameters() which returns 1 if the parameters match.
5815 This meant that parameters were omitted when they *didn't* match and
5816 the certificate was useless. Certificates signed with 'ca' didn't have
5818 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5820 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5821 The interface is as follows:
5822 Applications can use
5823 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5824 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5825 "off" is now the default.
5826 The library internally uses
5827 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5828 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5829 to disable memory-checking temporarily.
5831 Some inconsistent states that previously were possible (and were
5832 even the default) are now avoided.
5834 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5835 with each memory chunk allocated; this is occasionally more helpful
5836 than just having a counter.
5838 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5840 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5844 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5845 which largely parallels "options", but is for changing API behaviour,
5846 whereas "options" are about protocol behaviour.
5847 Initial "mode" flags are:
5849 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5850 a single record has been written.
5851 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5852 retries use the same buffer location.
5853 (But all of the contents must be
5857 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5860 *) Fix problems with no-hmac etc.
5861 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5863 *) New functions RSA_get_default_method(), RSA_set_method() and
5864 RSA_get_method(). These allows replacement of RSA_METHODs without having
5865 to mess around with the internals of an RSA structure.
5868 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5869 Also really enable memory leak checks in openssl.c and in some
5871 [Chad C. Mulligan, Bodo Moeller]
5873 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5874 up the length of negative integers. This has now been simplified to just
5875 store the length when it is first determined and use it later, rather
5876 than trying to keep track of where data is copied and updating it to
5878 [Steve Henson, reported by Brien Wheeler
5879 <bwheeler@authentica-security.com>]
5881 *) Add a new function PKCS7_signatureVerify. This allows the verification
5882 of a PKCS#7 signature but with the signing certificate passed to the
5883 function itself. This contrasts with PKCS7_dataVerify which assumes the
5884 certificate is present in the PKCS#7 structure. This isn't always the
5885 case: certificates can be omitted from a PKCS#7 structure and be
5886 distributed by "out of band" means (such as a certificate database).
5889 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5890 function prototypes in pem.h, also change util/mkdef.pl to add the
5891 necessary function names.
5894 *) mk1mf.pl (used by Windows builds) did not properly read the
5895 options set by Configure in the top level Makefile, and Configure
5896 was not even able to write more than one option correctly.
5897 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5900 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5901 file to be loaded from a BIO or FILE pointer. The BIO version will
5902 for example allow memory BIOs to contain config info.
5905 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5906 Whoever hopes to achieve shared-library compatibility across versions
5907 must use this, not the compile-time macro.
5908 (Exercise 0.9.4: Which is the minimum library version required by
5910 Note: All this applies only to multi-threaded programs, others don't
5914 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5915 through a BIO pair triggered the default case, i.e.
5916 SSLerr(...,SSL_R_UNKNOWN_STATE).
5919 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5920 can use the SSL library even if none of the specific BIOs is
5924 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5925 for the encoded length.
5926 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5928 *) Add initial documentation of the X509V3 functions.
5931 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5932 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5933 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5934 secure PKCS#8 private key format with a high iteration count.
5937 *) Fix determination of Perl interpreter: A perl or perl5
5938 _directory_ in $PATH was also accepted as the interpreter.
5939 [Ralf S. Engelschall]
5941 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5942 wrong with it but it was very old and did things like calling
5943 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5947 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5948 to use the new extension code.
5951 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5952 with macros. This should make it easier to change their form, add extra
5953 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5957 *) Add to configuration table a new entry that can specify an alternative
5958 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5959 according to Mark Crispin <MRC@Panda.COM>.
5963 *) DES CBC did not update the IV. Weird.
5966 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5967 Changing the behaviour of the former might break existing programs --
5968 where IV updating is needed, des_ncbc_encrypt can be used.
5971 *) When bntest is run from "make test" it drives bc to check its
5972 calculations, as well as internally checking them. If an internal check
5973 fails, it needs to cause bc to give a non-zero result or make test carries
5974 on without noticing the failure. Fixed.
5977 *) DES library cleanups.
5980 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5981 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5982 ciphers. NOTE: although the key derivation function has been verified
5983 against some published test vectors it has not been extensively tested
5984 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5988 *) Instead of "mkdir -p", which is not fully portable, use new
5989 Perl script "util/mkdir-p.pl".
5992 *) Rewrite the way password based encryption (PBE) is handled. It used to
5993 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5994 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5995 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5996 the 'parameter' field of the AlgorithmIdentifier is passed to the
5997 underlying key generation function so it must do its own ASN1 parsing.
5998 This has also changed the EVP_PBE_CipherInit() function which now has a
5999 'parameter' argument instead of literal salt and iteration count values
6000 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6003 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6004 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6005 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6006 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6007 value was just used as a "magic string" and not used directly its
6008 value doesn't matter.
6011 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6015 *) "linux-sparc64" configuration (ultrapenguin).
6016 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6017 "linux-sparc" configuration.
6018 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6020 *) config now generates no-xxx options for missing ciphers.
6023 *) Support the EBCDIC character set (work in progress).
6024 File ebcdic.c not yet included because it has a different license.
6025 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6027 *) Support BS2000/OSD-POSIX.
6028 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6030 *) Make callbacks for key generation use void * instead of char *.
6033 *) Make S/MIME samples compile (not yet tested).
6036 *) Additional typesafe stacks.
6039 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6043 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6045 *) New configuration variant "sco5-gcc".
6047 *) Updated some demos.
6048 [Sean O Riordain, Wade Scholine]
6050 *) Add missing BIO_free at exit of pkcs12 application.
6053 *) Fix memory leak in conf.c.
6056 *) Updates for Win32 to assembler version of MD5.
6059 *) Set #! path to perl in apps/der_chop to where we found it
6060 instead of using a fixed path.
6063 *) SHA library changes for irix64-mips4-cc.
6066 *) Improvements for VMS support.
6070 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6072 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6073 This also avoids the problems with SC4.2 and unpatched SC5.
6074 [Andy Polyakov <appro@fy.chalmers.se>]
6076 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6077 These are required because of the typesafe stack would otherwise break
6078 existing code. If old code used a structure member which used to be STACK
6079 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6080 sk_num or sk_value it would produce an error because the num, data members
6081 are not present in STACK_OF. Now it just produces a warning. sk_set
6082 replaces the old method of assigning a value to sk_value
6083 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6084 that does this will no longer work (and should use sk_set instead) but
6085 this could be regarded as a "questionable" behaviour anyway.
6088 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6089 correctly handle encrypted S/MIME data.
6092 *) Change type of various DES function arguments from des_cblock
6093 (which means, in function argument declarations, pointer to char)
6094 to des_cblock * (meaning pointer to array with 8 char elements),
6095 which allows the compiler to do more typechecking; it was like
6096 that back in SSLeay, but with lots of ugly casts.
6098 Introduce new type const_des_cblock.
6101 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6102 problems: find RecipientInfo structure that matches recipient certificate
6103 and initialise the ASN1 structures properly based on passed cipher.
6106 *) Belatedly make the BN tests actually check the results.
6109 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6110 to and from BNs: it was completely broken. New compilation option
6111 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6112 key elements as negative integers.
6115 *) Reorganize and speed up MD5.
6116 [Andy Polyakov <appro@fy.chalmers.se>]
6119 [Richard Levitte <richard@levitte.org>]
6121 *) New option -out to asn1parse to allow the parsed structure to be
6122 output to a file. This is most useful when combined with the -strparse
6123 option to examine the output of things like OCTET STRINGS.
6126 *) Make SSL library a little more fool-proof by not requiring any longer
6127 that SSL_set_{accept,connect}_state be called before
6128 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6129 in many applications because usually everything *appeared* to work as
6130 intended anyway -- now it really works as intended).
6133 *) Move openssl.cnf out of lib/.
6136 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6137 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6138 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6139 [Ralf S. Engelschall]
6141 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6142 handle PKCS#7 enveloped data properly.
6143 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6145 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6146 copying pointers. The cert_st handling is changed by this in
6147 various ways (and thus what used to be known as ctx->default_cert
6148 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6149 any longer when s->cert does not give us what we need).
6150 ssl_cert_instantiate becomes obsolete by this change.
6151 As soon as we've got the new code right (possibly it already is?),
6152 we have solved a couple of bugs of the earlier code where s->cert
6153 was used as if it could not have been shared with other SSL structures.
6155 Note that using the SSL API in certain dirty ways now will result
6156 in different behaviour than observed with earlier library versions:
6157 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6158 does not influence s as it used to.
6160 In order to clean up things more thoroughly, inside SSL_SESSION
6161 we don't use CERT any longer, but a new structure SESS_CERT
6162 that holds per-session data (if available); currently, this is
6163 the peer's certificate chain and, for clients, the server's certificate
6164 and temporary key. CERT holds only those values that can have
6165 meaningful defaults in an SSL_CTX.
6168 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6169 from the internal representation. Various PKCS#7 fixes: remove some
6170 evil casts and set the enc_dig_alg field properly based on the signing
6174 *) Allow PKCS#12 password to be set from the command line or the
6175 environment. Let 'ca' get its config file name from the environment
6176 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6180 *) Allow certificate policies extension to use an IA5STRING for the
6181 organization field. This is contrary to the PKIX definition but
6182 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6186 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6187 without disallowing inline assembler and the like for non-pedantic builds.
6190 *) Support Borland C++ builder.
6191 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6196 *) SHA-1 cleanups and performance enhancements.
6197 [Andy Polyakov <appro@fy.chalmers.se>]
6199 *) Sparc v8plus assembler for the bignum library.
6200 [Andy Polyakov <appro@fy.chalmers.se>]
6202 *) Accept any -xxx and +xxx compiler options in Configure.
6205 *) Update HPUX configuration.
6208 *) Add missing sk_<type>_unshift() function to safestack.h
6209 [Ralf S. Engelschall]
6211 *) New function SSL_CTX_use_certificate_chain_file that sets the
6212 "extra_cert"s in addition to the certificate. (This makes sense
6213 only for "PEM" format files, as chains as a whole are not
6217 *) Support verify_depth from the SSL API.
6218 x509_vfy.c had what can be considered an off-by-one-error:
6219 Its depth (which was not part of the external interface)
6220 was actually counting the number of certificates in a chain;
6221 now it really counts the depth.
6224 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6225 instead of X509err, which often resulted in confusing error
6226 messages since the error codes are not globally unique
6227 (e.g. an alleged error in ssl3_accept when a certificate
6228 didn't match the private key).
6230 *) New function SSL_CTX_set_session_id_context that allows to set a default
6231 value (so that you don't need SSL_set_session_id_context for each
6232 connection using the SSL_CTX).
6235 *) OAEP decoding bug fix.
6238 *) Support INSTALL_PREFIX for package builders, as proposed by
6242 *) New Configure options "threads" and "no-threads". For systems
6243 where the proper compiler options are known (currently Solaris
6244 and Linux), "threads" is the default.
6247 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6250 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6251 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6252 such as /usr/local/bin.
6255 *) "make linux-shared" to build shared libraries.
6256 [Niels Poppe <niels@netbox.org>]
6258 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6261 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6262 extension adding in x509 utility.
6265 *) Remove NOPROTO sections and error code comments.
6268 *) Partial rewrite of the DEF file generator to now parse the ANSI
6272 *) New Configure options --prefix=DIR and --openssldir=DIR.
6275 *) Complete rewrite of the error code script(s). It is all now handled
6276 by one script at the top level which handles error code gathering,
6277 header rewriting and C source file generation. It should be much better
6278 than the old method: it now uses a modified version of Ulf's parser to
6279 read the ANSI prototypes in all header files (thus the old K&R definitions
6280 aren't needed for error creation any more) and do a better job of
6281 translating function codes into names. The old 'ASN1 error code imbedded
6282 in a comment' is no longer necessary and it doesn't use .err files which
6283 have now been deleted. Also the error code call doesn't have to appear all
6284 on one line (which resulted in some large lines...).
6287 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6290 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6291 0 (which usually indicates a closed connection), but continue reading.
6294 *) Fix some race conditions.
6297 *) Add support for CRL distribution points extension. Add Certificate
6298 Policies and CRL distribution points documentation.
6301 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6304 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6305 8 of keying material. Merlin has also confirmed interop with this fix
6306 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6307 [Merlin Hughes <merlin@baltimore.ie>]
6309 *) Fix lots of warnings.
6310 [Richard Levitte <levitte@stacken.kth.se>]
6312 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6313 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6314 [Richard Levitte <levitte@stacken.kth.se>]
6316 *) Fix problems with sizeof(long) == 8.
6317 [Andy Polyakov <appro@fy.chalmers.se>]
6319 *) Change functions to ANSI C.
6322 *) Fix typos in error codes.
6323 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6325 *) Remove defunct assembler files from Configure.
6328 *) SPARC v8 assembler BIGNUM implementation.
6329 [Andy Polyakov <appro@fy.chalmers.se>]
6331 *) Support for Certificate Policies extension: both print and set.
6332 Various additions to support the r2i method this uses.
6335 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6336 return a const string when you are expecting an allocated buffer.
6339 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6340 types DirectoryString and DisplayText.
6343 *) Add code to allow r2i extensions to access the configuration database,
6344 add an LHASH database driver and add several ctx helper functions.
6347 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6348 fail when they extended the size of a BIGNUM.
6351 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6352 support typesafe stack.
6355 *) Fix typo in SSL_[gs]et_options().
6356 [Nils Frostberg <nils@medcom.se>]
6358 *) Delete various functions and files that belonged to the (now obsolete)
6359 old X509V3 handling code.
6362 *) New Configure option "rsaref".
6365 *) Don't auto-generate pem.h.
6368 *) Introduce type-safe ASN.1 SETs.
6371 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6372 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6374 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6375 that links with OpenSSL (well at least cause lots of warnings), but fear
6376 not: the conversion is trivial, and it eliminates loads of evil casts. A
6377 few STACKed things have been converted already. Feel free to convert more.
6378 In the fullness of time, I'll do away with the STACK type altogether.
6381 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6382 specified in <certfile> by updating the entry in the index.txt file.
6383 This way one no longer has to edit the index.txt file manually for
6384 revoking a certificate. The -revoke option does the gory details now.
6385 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6387 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6388 `-text' option at all and this way the `-noout -text' combination was
6389 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6390 [Ralf S. Engelschall]
6392 *) Make sure a corresponding plain text error message exists for the
6393 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6394 verify callback function determined that a certificate was revoked.
6395 [Ralf S. Engelschall]
6397 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6398 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6399 all available cipers including rc5, which was forgotten until now.
6400 In order to let the testing shell script know which algorithms
6401 are available, a new (up to now undocumented) command
6402 "openssl list-cipher-commands" is used.
6405 *) Bugfix: s_client occasionally would sleep in select() when
6406 it should have checked SSL_pending() first.
6409 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6410 the raw DSA values prior to ASN.1 encoding.
6413 *) Tweaks to Configure
6414 [Niels Poppe <niels@netbox.org>]
6416 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6420 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6423 *) New config option to avoid instructions that are illegal on the 80386.
6424 The default code is faster, but requires at least a 486.
6427 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6428 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6429 same as SSL2_VERSION anyway.
6432 *) New "-showcerts" option for s_client.
6435 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6436 application. Various cleanups and fixes.
6439 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6440 modify error routines to work internally. Add error codes and PBE init
6441 to library startup routines.
6444 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6445 packing functions to asn1 and evp. Changed function names and error
6446 codes along the way.
6449 *) PKCS12 integration: and so it begins... First of several patches to
6450 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6451 objects to objects.h
6454 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6455 and display support for Thawte strong extranet extension.
6458 *) Add LinuxPPC support.
6459 [Jeff Dubrule <igor@pobox.org>]
6461 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6462 bn_div_words in alpha.s.
6463 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6465 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6466 OAEP isn't supported when OpenSSL is built with RSAref.
6467 [Ulf Moeller <ulf@fitug.de>]
6469 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6470 so they no longer are missing under -DNOPROTO.
6471 [Soren S. Jorvang <soren@t.dk>]
6474 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6476 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6477 doesn't work when the session is reused. Coming soon!
6480 *) Fix a security hole, that allows sessions to be reused in the wrong
6481 context thus bypassing client cert protection! All software that uses
6482 client certs and session caches in multiple contexts NEEDS PATCHING to
6483 allow session reuse! A fuller solution is in the works.
6484 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6486 *) Some more source tree cleanups (removed obsolete files
6487 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6488 permission on "config" script to be executable) and a fix for the INSTALL
6490 [Ulf Moeller <ulf@fitug.de>]
6492 *) Remove some legacy and erroneous uses of malloc, free instead of
6494 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6496 *) Make rsa_oaep_test return non-zero on error.
6497 [Ulf Moeller <ulf@fitug.de>]
6499 *) Add support for native Solaris shared libraries. Configure
6500 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6501 if someone would make that last step automatic.
6502 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6504 *) ctx_size was not built with the right compiler during "make links". Fixed.
6507 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6508 except NULL ciphers". This means the default cipher list will no longer
6509 enable NULL ciphers. They need to be specifically enabled e.g. with
6510 the string "DEFAULT:eNULL".
6513 *) Fix to RSA private encryption routines: if p < q then it would
6514 occasionally produce an invalid result. This will only happen with
6515 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6518 *) Be less restrictive and allow also `perl util/perlpath.pl
6519 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6520 because this way one can also use an interpreter named `perl5' (which is
6521 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6522 installed as `perl').
6523 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6525 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6526 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6528 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6529 advapi32.lib to Win32 build and change the pem test comparision
6530 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6531 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6532 and crypto/des/ede_cbcm_enc.c.
6535 *) DES quad checksum was broken on big-endian architectures. Fixed.
6538 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6539 Win32 test batch file so it (might) work again. The Win32 test batch file
6540 is horrible: I feel ill....
6543 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6544 in e_os.h. Audit of header files to check ANSI and non ANSI
6545 sections: 10 functions were absent from non ANSI section and not exported
6546 from Windows DLLs. Fixed up libeay.num for new functions.
6549 *) Make `openssl version' output lines consistent.
6550 [Ralf S. Engelschall]
6552 *) Fix Win32 symbol export lists for BIO functions: Added
6553 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6554 to ms/libeay{16,32}.def.
6555 [Ralf S. Engelschall]
6557 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6558 fine under Unix and passes some trivial tests I've now added. But the
6559 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6560 added to make sure no one expects that this stuff really works in the
6561 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6562 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6564 [Ralf S. Engelschall]
6566 *) Fix the generation of two part addresses in perl.
6567 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6569 *) Add config entry for Linux on MIPS.
6570 [John Tobey <jtobey@channel1.com>]
6572 *) Make links whenever Configure is run, unless we are on Windoze.
6575 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6576 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6580 *) Add a useful kludge to allow package maintainers to specify compiler and
6581 other platforms details on the command line without having to patch the
6582 Configure script everytime: One now can use ``perl Configure
6583 <id>:<details>'', i.e. platform ids are allowed to have details appended
6584 to them (seperated by colons). This is treated as there would be a static
6585 pre-configured entry in Configure's %table under key <id> with value
6586 <details> and ``perl Configure <id>'' is called. So, when you want to
6587 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6588 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6589 now, which overrides the FreeBSD-elf entry on-the-fly.
6590 [Ralf S. Engelschall]
6592 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6595 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6596 on the `perl Configure ...' command line. This way one can compile
6597 OpenSSL libraries with Position Independent Code (PIC) which is needed
6598 for linking it into DSOs.
6599 [Ralf S. Engelschall]
6601 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6605 *) Cleaned up the LICENSE document: The official contact for any license
6606 questions now is the OpenSSL core team under openssl-core@openssl.org.
6607 And add a paragraph about the dual-license situation to make sure people
6608 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6609 to the OpenSSL toolkit.
6610 [Ralf S. Engelschall]
6612 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6613 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6614 Additonally cleaned up the `make links' target: Remove unnecessary
6615 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6616 to speed processing and no longer clutter the display with confusing
6617 stuff. Instead only the actually done links are displayed.
6618 [Ralf S. Engelschall]
6620 *) Permit null encryption ciphersuites, used for authentication only. It used
6621 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6622 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6626 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6627 signed attributes when verifying signatures (this would break them),
6628 the detached data encoding was wrong and public keys obtained using
6629 X509_get_pubkey() weren't freed.
6632 *) Add text documentation for the BUFFER functions. Also added a work around
6633 to a Win95 console bug. This was triggered by the password read stuff: the
6634 last character typed gets carried over to the next fread(). If you were
6635 generating a new cert request using 'req' for example then the last
6636 character of the passphrase would be CR which would then enter the first
6640 *) Added the new `Includes OpenSSL Cryptography Software' button as
6641 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6642 button and can be used by applications based on OpenSSL to show the
6643 relationship to the OpenSSL project.
6644 [Ralf S. Engelschall]
6646 *) Remove confusing variables in function signatures in files
6647 ssl/ssl_lib.c and ssl/ssl.h.
6648 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6650 *) Don't install bss_file.c under PREFIX/include/
6651 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6653 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6654 functions that return function pointers and has support for NT specific
6655 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6656 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6657 unsigned to signed types: this was killing the Win32 compile.
6660 *) Add new certificate file to stack functions,
6661 SSL_add_dir_cert_subjects_to_stack() and
6662 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6663 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6664 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6665 This means that Apache-SSL and similar packages don't have to mess around
6666 to add as many CAs as they want to the preferred list.
6669 *) Experiment with doxygen documentation. Currently only partially applied to
6671 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6672 openssl.doxy as the configuration file.
6675 *) Get rid of remaining C++-style comments which strict C compilers hate.
6676 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6678 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6679 compiled in by default: it has problems with large keys.
6682 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6683 DH private keys and/or callback functions which directly correspond to
6684 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6685 is needed for applications which have to configure certificates on a
6686 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6688 For the RSA certificate situation is makes no difference, but
6689 for the DSA certificate situation this fixes the "no shared cipher"
6690 problem where the OpenSSL cipher selection procedure failed because the
6691 temporary keys were not overtaken from the context and the API provided
6692 no way to reconfigure them.
6693 The new functions now let applications reconfigure the stuff and they
6694 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6695 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6696 non-public-API function ssl_cert_instantiate() is used as a helper
6697 function and also to reduce code redundancy inside ssl_rsa.c.
6698 [Ralf S. Engelschall]
6700 *) Move s_server -dcert and -dkey options out of the undocumented feature
6701 area because they are useful for the DSA situation and should be
6702 recognized by the users.
6703 [Ralf S. Engelschall]
6705 *) Fix the cipher decision scheme for export ciphers: the export bits are
6706 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6707 SSL_EXP_MASK. So, the original variable has to be used instead of the
6708 already masked variable.
6709 [Richard Levitte <levitte@stacken.kth.se>]
6711 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6712 [Richard Levitte <levitte@stacken.kth.se>]
6714 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6715 from `int' to `unsigned int' because it's a length and initialized by
6716 EVP_DigestFinal() which expects an `unsigned int *'.
6717 [Richard Levitte <levitte@stacken.kth.se>]
6719 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6720 script. Instead use the usual Shell->Perl transition trick.
6721 [Ralf S. Engelschall]
6723 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6724 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6725 -noout -modulus' as it's already the case for `openssl rsa -noout
6726 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6727 currently the public key is printed (a decision which was already done by
6728 `openssl dsa -modulus' in the past) which serves a similar purpose.
6729 Additionally the NO_RSA no longer completely removes the whole -modulus
6730 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6732 [Ralf S. Engelschall]
6734 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6735 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6736 [Arne Ansper <arne@ats.cyber.ee>]
6738 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6739 to be added. Now both 'req' and 'ca' can use new objects defined in the
6743 *) Add cool BIO that does syslog (or event log on NT).
6744 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6746 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6747 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6748 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6749 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6752 *) Add preliminary config info for new extension code.
6755 *) Make RSA_NO_PADDING really use no padding.
6756 [Ulf Moeller <ulf@fitug.de>]
6758 *) Generate errors when private/public key check is done.
6761 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6762 for some CRL extensions and new objects added.
6765 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6766 key usage extension and fuller support for authority key id.
6769 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6770 padding method for RSA, which is recommended for new applications in PKCS
6771 #1 v2.0 (RFC 2437, October 1998).
6772 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6773 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6774 against Bleichbacher's attack on RSA.
6775 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6778 *) Updates to the new SSL compression code
6779 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6781 *) Fix so that the version number in the master secret, when passed
6782 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6783 (because the server will not accept higher), that the version number
6784 is 0x03,0x01, not 0x03,0x00
6785 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6787 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6788 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6789 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6792 *) Support for RAW extensions where an arbitrary extension can be
6793 created by including its DER encoding. See apps/openssl.cnf for
6797 *) Make sure latest Perl versions don't interpret some generated C array
6798 code as Perl array code in the crypto/err/err_genc.pl script.
6799 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6801 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6802 not many people have the assembler. Various Win32 compilation fixes and
6803 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6807 *) Modify configure script 'Configure' to automatically create crypto/date.h
6808 file under Win32 and also build pem.h from pem.org. New script
6809 util/mkfiles.pl to create the MINFO file on environments that can't do a
6810 'make files': perl util/mkfiles.pl >MINFO should work.
6813 *) Major rework of DES function declarations, in the pursuit of correctness
6814 and purity. As a result, many evil casts evaporated, and some weirdness,
6815 too. You may find this causes warnings in your code. Zapping your evil
6816 casts will probably fix them. Mostly.
6819 *) Fix for a typo in asn1.h. Bug fix to object creation script
6820 obj_dat.pl. It considered a zero in an object definition to mean
6821 "end of object": none of the objects in objects.h have any zeros
6822 so it wasn't spotted.
6823 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6825 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6826 Masking (CBCM). In the absence of test vectors, the best I have been able
6827 to do is check that the decrypt undoes the encrypt, so far. Send me test
6828 vectors if you have them.
6831 *) Correct calculation of key length for export ciphers (too much space was
6832 allocated for null ciphers). This has not been tested!
6835 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6836 message is now correct (it understands "crypto" and "ssl" on its
6837 command line). There is also now an "update" option. This will update
6838 the util/ssleay.num and util/libeay.num files with any new functions.
6840 perl util/mkdef.pl crypto ssl update
6841 it will update them.
6844 *) Overhauled the Perl interface (perl/*):
6845 - ported BN stuff to OpenSSL's different BN library
6846 - made the perl/ source tree CVS-aware
6847 - renamed the package from SSLeay to OpenSSL (the files still contain
6848 their history because I've copied them in the repository)
6849 - removed obsolete files (the test scripts will be replaced
6850 by better Test::Harness variants in the future)
6851 [Ralf S. Engelschall]
6853 *) First cut for a very conservative source tree cleanup:
6854 1. merge various obsolete readme texts into doc/ssleay.txt
6855 where we collect the old documents and readme texts.
6856 2. remove the first part of files where I'm already sure that we no
6857 longer need them because of three reasons: either they are just temporary
6858 files which were left by Eric or they are preserved original files where
6859 I've verified that the diff is also available in the CVS via "cvs diff
6860 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6861 the crypto/md/ stuff).
6862 [Ralf S. Engelschall]
6864 *) More extension code. Incomplete support for subject and issuer alt
6865 name, issuer and authority key id. Change the i2v function parameters
6866 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6867 what that's for :-) Fix to ASN1 macro which messed up
6868 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6871 *) Preliminary support for ENUMERATED type. This is largely copied from the
6875 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6876 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6878 *) Make sure `make rehash' target really finds the `openssl' program.
6879 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6881 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6882 like to hear about it if this slows down other processors.
6885 *) Add CygWin32 platform information to Configure script.
6886 [Alan Batie <batie@aahz.jf.intel.com>]
6888 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6889 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6891 *) New program nseq to manipulate netscape certificate sequences
6894 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6898 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6899 but the BN code had some problems that would cause failures when
6900 doing certificate verification and some other functions.
6901 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6903 *) Add ASN1 and PEM code to support netscape certificate sequences.
6906 *) Add ASN1 and PEM code to support netscape certificate sequences.
6909 *) Add several PKIX and private extended key usage OIDs.
6912 *) Modify the 'ca' program to handle the new extension code. Modify
6913 openssl.cnf for new extension format, add comments.
6916 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6917 and add a sample to openssl.cnf so req -x509 now adds appropriate
6921 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6922 error code, add initial support to X509_print() and x509 application.
6925 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6926 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6927 stuff is currently isolated and isn't even compiled yet.
6930 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6931 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6932 Removed the versions check from X509 routines when loading extensions:
6933 this allows certain broken certificates that don't set the version
6934 properly to be processed.
6937 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6938 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6939 can still be regenerated with "make depend".
6942 *) Spelling mistake in C version of CAST-128.
6943 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6945 *) Changes to the error generation code. The perl script err-code.pl
6946 now reads in the old error codes and retains the old numbers, only
6947 adding new ones if necessary. It also only changes the .err files if new
6948 codes are added. The makefiles have been modified to only insert errors
6949 when needed (to avoid needlessly modifying header files). This is done
6950 by only inserting errors if the .err file is newer than the auto generated
6951 C file. To rebuild all the error codes from scratch (the old behaviour)
6952 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6953 or delete all the .err files.
6956 *) CAST-128 was incorrectly implemented for short keys. The C version has
6957 been fixed, but is untested. The assembler versions are also fixed, but
6958 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6959 to regenerate it if needed.
6960 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6961 Hagino <itojun@kame.net>]
6963 *) File was opened incorrectly in randfile.c.
6964 [Ulf Möller <ulf@fitug.de>]
6966 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6967 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6968 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6969 al: it's just almost always a UTCTime. Note this patch adds new error
6970 codes so do a "make errors" if there are problems.
6973 *) Correct Linux 1 recognition in config.
6974 [Ulf Möller <ulf@fitug.de>]
6976 *) Remove pointless MD5 hash when using DSA keys in ca.
6977 [Anonymous <nobody@replay.com>]
6979 *) Generate an error if given an empty string as a cert directory. Also
6980 generate an error if handed NULL (previously returned 0 to indicate an
6981 error, but didn't set one).
6982 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6984 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6987 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6988 parameters. This was causing a warning which killed off the Win32 compile.
6991 *) Remove C++ style comments from crypto/bn/bn_local.h.
6992 [Neil Costigan <neil.costigan@celocom.com>]
6994 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6995 based on a text string, looking up short and long names and finally
6996 "dot" format. The "dot" format stuff didn't work. Added new function
6997 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6998 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6999 OID is not part of the table.
7002 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7003 X509_LOOKUP_by_alias().
7006 *) Sort openssl functions by name.
7009 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7010 encryption from sample DSA keys (in case anyone is interested the password
7014 *) Make _all_ *_free functions accept a NULL pointer.
7015 [Frans Heymans <fheymans@isaserver.be>]
7017 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7019 [Anonymous <nobody@replay.com>]
7021 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7022 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7024 *) Don't blow it for numeric -newkey arguments to apps/req.
7025 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7027 *) Temp key "for export" tests were wrong in s3_srvr.c.
7028 [Anonymous <nobody@replay.com>]
7030 *) Add prototype for temp key callback functions
7031 SSL_CTX_set_tmp_{rsa,dh}_callback().
7034 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7035 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7038 *) X509_name_add_entry() freed the wrong thing after an error.
7039 [Arne Ansper <arne@ats.cyber.ee>]
7041 *) rsa_eay.c would attempt to free a NULL context.
7042 [Arne Ansper <arne@ats.cyber.ee>]
7044 *) BIO_s_socket() had a broken should_retry() on Windoze.
7045 [Arne Ansper <arne@ats.cyber.ee>]
7047 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7048 [Arne Ansper <arne@ats.cyber.ee>]
7050 *) Make sure the already existing X509_STORE->depth variable is initialized
7051 in X509_STORE_new(), but document the fact that this variable is still
7052 unused in the certificate verification process.
7053 [Ralf S. Engelschall]
7055 *) Fix the various library and apps files to free up pkeys obtained from
7056 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7059 *) Fix reference counting in X509_PUBKEY_get(). This makes
7060 demos/maurice/example2.c work, amongst others, probably.
7061 [Steve Henson and Ben Laurie]
7063 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7064 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7065 are no longer created. This way we have a single and consistent command
7066 line interface `openssl <command>', similar to `cvs <command>'.
7067 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7069 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7070 BIT STRING wrapper always have zero unused bits.
7073 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7076 *) Make the top-level INSTALL documentation easier to understand.
7079 *) Makefiles updated to exit if an error occurs in a sub-directory
7080 make (including if user presses ^C) [Paul Sutton]
7082 *) Make Montgomery context stuff explicit in RSA data structure.
7085 *) Fix build order of pem and err to allow for generated pem.h.
7088 *) Fix renumbering bug in X509_NAME_delete_entry().
7091 *) Enhanced the err-ins.pl script so it makes the error library number
7092 global and can add a library name. This is needed for external ASN1 and
7093 other error libraries.
7096 *) Fixed sk_insert which never worked properly.
7099 *) Fix ASN1 macros so they can handle indefinite length construted
7100 EXPLICIT tags. Some non standard certificates use these: they can now
7104 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7105 into a single doc/ssleay.txt bundle. This way the information is still
7106 preserved but no longer messes up this directory. Now it's new room for
7107 the new set of documenation files.
7108 [Ralf S. Engelschall]
7110 *) SETs were incorrectly DER encoded. This was a major pain, because they
7111 shared code with SEQUENCEs, which aren't coded the same. This means that
7112 almost everything to do with SETs or SEQUENCEs has either changed name or
7113 number of arguments.
7114 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7116 *) Fix test data to work with the above.
7119 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7120 was already fixed by Eric for 0.9.1 it seems.
7121 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7123 *) Autodetect FreeBSD3.
7126 *) Fix various bugs in Configure. This affects the following platforms:
7130 unixware-2.0-pentium
7134 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7135 before they are needed.
7138 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7142 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7144 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7145 changed SSLeay to OpenSSL in version strings.
7146 [Ralf S. Engelschall]
7148 *) Some fixups to the top-level documents.
7151 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7152 because the symlink to include/ was missing.
7153 [Ralf S. Engelschall]
7155 *) Incorporated the popular no-RSA/DSA-only patches
7156 which allow to compile a RSA-free SSLeay.
7157 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7159 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7160 when "ssleay" is still not found.
7161 [Ralf S. Engelschall]
7163 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7164 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7166 *) Updated the README file.
7167 [Ralf S. Engelschall]
7169 *) Added various .cvsignore files in the CVS repository subdirs
7170 to make a "cvs update" really silent.
7171 [Ralf S. Engelschall]
7173 *) Recompiled the error-definition header files and added
7174 missing symbols to the Win32 linker tables.
7175 [Ralf S. Engelschall]
7177 *) Cleaned up the top-level documents;
7178 o new files: CHANGES and LICENSE
7179 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7180 o merged COPYRIGHT into LICENSE
7181 o removed obsolete TODO file
7182 o renamed MICROSOFT to INSTALL.W32
7183 [Ralf S. Engelschall]
7185 *) Removed dummy files from the 0.9.1b source tree:
7186 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7187 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7188 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7189 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7190 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7191 [Ralf S. Engelschall]
7193 *) Added various platform portability fixes.
7196 *) The Genesis of the OpenSSL rpject:
7197 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7198 Young and Tim J. Hudson created while they were working for C2Net until
7200 [The OpenSSL Project]
7203 Changes between 0.9.0b and 0.9.1b [not released]
7205 *) Updated a few CA certificates under certs/
7208 *) Changed some BIGNUM api stuff.
7211 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7212 DGUX x86, Linux Alpha, etc.
7215 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7216 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7220 *) Add -strparse option to asn1pars program which parses nested
7222 [Dr Stephen Henson <shenson@bigfoot.com>]
7224 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7227 *) DSA fix for "ca" program.
7230 *) Added "-genkey" option to "dsaparam" program.
7233 *) Added RIPE MD160 (rmd160) message digest.
7236 *) Added -a (all) option to "ssleay version" command.
7239 *) Added PLATFORM define which is the id given to Configure.
7242 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7245 *) Extended the ASN.1 parser routines.
7248 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7251 *) Added a BN_CTX to the BN library.
7254 *) Fixed the weak key values in DES library
7257 *) Changed API in EVP library for cipher aliases.
7260 *) Added support for RC2/64bit cipher.
7263 *) Converted the lhash library to the crypto/mem.c functions.
7266 *) Added more recognized ASN.1 object ids.
7269 *) Added more RSA padding checks for SSL/TLS.
7272 *) Added BIO proxy/filter functionality.
7275 *) Added extra_certs to SSL_CTX which can be used
7276 send extra CA certificates to the client in the CA cert chain sending
7277 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7280 *) Now Fortezza is denied in the authentication phase because
7281 this is key exchange mechanism is not supported by SSLeay at all.
7284 *) Additional PKCS1 checks.
7287 *) Support the string "TLSv1" for all TLS v1 ciphers.
7290 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7291 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7294 *) Fixed a few memory leaks.
7297 *) Fixed various code and comment typos.
7300 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7301 bytes sent in the client random.
7302 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob