5 Changes between 0.9.7c and 0.9.8 [xx XXX xxxx]
7 *) Reduced header interdepencies by declaring more opaque objects in
8 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
9 give fewer recursive includes, which could break lazy source code - so
10 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
11 developers should define this symbol when building and using openssl to
12 ensure they track the recommended behaviour, interfaces, [etc], but
13 backwards-compatible behaviour prevails when this isn't defined.
16 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
19 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
20 This will generate a random key of the appropriate length based on the
21 cipher context. The EVP_CIPHER can provide its own random key generation
22 routine to support keys of a specific form. This is used in the des and
23 3des routines to generate a key of the correct parity. Update S/MIME
24 code to use new functions and hence generate correct parity DES keys.
25 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
26 valid (weak or incorrect parity).
29 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
30 as looking them up. This is useful when the verified structure may contain
31 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
32 present unless the new PKCS7_NO_CRL flag is asserted.
35 *) Extend ASN1 oid configuration module. It now additionally accepts the
38 shortName = some long name, 1.2.3.4
41 *) Reimplemented the BN_CTX implementation. There is now no more static
42 limitation on the number of variables it can handle nor the depth of the
43 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
44 information can now expand as required, and rather than having a single
45 static array of bignums, BN_CTX now uses a linked-list of such arrays
46 allowing it to expand on demand whilst maintaining the usefulness of
50 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
51 to allow all RSA operations to function using a single BN_CTX.
54 *) Preliminary support for certificate policy evaluation and checking. This
55 is initially intended to pass the tests outlined in "Conformance Testing
56 of Relying Party Client Certificate Path Processing Logic" v1.07.
59 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
60 remained unused and not that useful. A variety of other little bignum
61 tweaks and fixes have also been made continuing on from the audit (see
65 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
66 associated ASN1, EVP and SSL functions and old ASN1 macros.
69 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
70 and this should never fail. So the return value from the use of
71 BN_set_word() (which can fail due to needless expansion) is now deprecated;
72 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
75 *) BN_CTX_get() should return zero-valued bignums, providing the same
76 initialised value as BN_new().
77 [Geoff Thorpe, suggested by Ulf Möller]
79 *) Support for inhibitAnyPolicy certificate extension.
82 *) An audit of the BIGNUM code is underway, for which debugging code is
83 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
84 is considered valid when processing BIGNUMs, and causes execution to
85 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
86 further steps are taken to deliberately pollute unused data in BIGNUM
87 structures to try and expose faulty code further on. For now, openssl will
88 (in its default mode of operation) continue to tolerate the inconsistent
89 forms that it has tolerated in the past, but authors and packagers should
90 consider trying openssl and their own applications when compiled with
91 these debugging symbols defined. It will help highlight potential bugs in
92 their own code, and will improve the test coverage for OpenSSL itself. At
93 some point, these tighter rules will become openssl's default to improve
94 maintainability, though the assert()s and other overheads will remain only
95 in debugging configurations. See bn.h for more details.
96 [Geoff Thorpe, Nils Larsch, Ulf Möller]
98 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
99 that can only be obtained through BN_CTX_new() (which implicitly
100 initialises it). The presence of this function only made it possible
101 to overwrite an existing structure (and cause memory leaks).
104 *) Because of the callback-based approach for implementing LHASH as a
105 template type, lh_insert() adds opaque objects to hash-tables and
106 lh_doall() or lh_doall_arg() are typically used with a destructor callback
107 to clean up those corresponding objects before destroying the hash table
108 (and losing the object pointers). So some over-zealous constifications in
109 LHASH have been relaxed so that lh_insert() does not take (nor store) the
110 objects as "const" and the lh_doall[_arg] callback wrappers are not
111 prototyped to have "const" restrictions on the object pointers they are
112 given (and so aren't required to cast them away any more).
115 *) The tmdiff.h API was so ugly and minimal that our own timing utility
116 (speed) prefers to use its own implementation. The two implementations
117 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
118 its object type properly exposed (MS_TM) instead of casting to/from "char
119 *". This may still change yet if someone realises MS_TM and "ms_time_***"
120 aren't necessarily the greatest nomenclatures - but this is what was used
121 internally to the implementation so I've used that for now.
124 *) Ensure that deprecated functions do not get compiled when
125 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
126 the self-tests were still using deprecated key-generation functions so
127 these have been updated also.
130 *) Reorganise PKCS#7 code to separate the digest location functionality
131 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
132 New function PKCS7_set_digest() to set the digest type for PKCS#7
133 digestedData type. Add additional code to correctly generate the
134 digestedData type and add support for this type in PKCS7 initialization
138 *) New function PKCS7_set0_type_other() this initializes a PKCS7
139 structure of type "other".
142 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
143 sure the loop does correctly stop and breaking ("division by zero")
144 modulus operations are not performed. The (pre-generated) prime
145 table crypto/bn/bn_prime.h was already correct, but it could not be
146 re-generated on some platforms because of the "division by zero"
147 situation in the script.
148 [Ralf S. Engelschall]
150 *) Update support for ECC-based TLS ciphersuites according to
151 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
152 SHA-1 now is only used for "small" curves (where the
153 representation of a field element takes up to 24 bytes); for
154 larger curves, the field element resulting from ECDH is directly
155 used as premaster secret.
156 [Douglas Stebila (Sun Microsystems Laboratories)]
158 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
159 curve secp160r1 to the tests.
160 [Douglas Stebila (Sun Microsystems Laboratories)]
162 *) Add the possibility to load symbols globally with DSO.
163 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
165 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
166 control of the error stack.
169 *) Add support for STORE in ENGINE.
172 *) Add the STORE type. The intention is to provide a common interface
173 to certificate and key stores, be they simple file-based stores, or
174 HSM-type store, or LDAP stores, or...
175 NOTE: The code is currently UNTESTED and isn't really used anywhere.
178 *) Add a generic structure called OPENSSL_ITEM. This can be used to
179 pass a list of arguments to any function as well as provide a way
180 for a function to pass data back to the caller.
183 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
184 works like BUF_strdup() but can be used to duplicate a portion of
185 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
189 *) Add the function sk_find_ex() which works like sk_find(), but will
190 return an index to an element even if an exact match couldn't be
191 found. The index is guaranteed to point at the element where the
192 searched-for key would be inserted to preserve sorting order.
195 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
196 takes an extra flags argument for optional functionality. Currently,
197 the following flags are defined:
199 OBJ_BSEARCH_VALUE_ON_NOMATCH
200 This one gets OBJ_bsearch_ex() to return a pointer to the first
201 element where the comparing function returns a negative or zero
204 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
205 This one gets OBJ_bsearch_ex() to return a pointer to the first
206 element where the comparing function returns zero. This is useful
207 if there are more than one element where the comparing function
211 *) Make it possible to create self-signed certificates with 'openssl ca'
212 in such a way that the self-signed certificate becomes part of the
213 CA database and uses the same mechanisms for serial number generation
214 as all other certificate signing. The new flag '-selfsign' enables
215 this functionality. Adapt CA.sh and CA.pl.in.
218 *) Add functionality to check the public key of a certificate request
219 against a given private. This is useful to check that a certificate
220 request can be signed by that key (self-signing).
223 *) Make it possible to have multiple active certificates with the same
224 subject in the CA index file. This is done only if the keyword
225 'unique_subject' is set to 'no' in the main CA section (default
226 if 'CA_default') of the configuration file. The value is saved
227 with the database itself in a separate index attribute file,
228 named like the index file with '.attr' appended to the name.
231 *) Generate muti valued AVAs using '+' notation in config files for
235 *) Support for nameConstraints certificate extension.
238 *) Support for policyConstraints certificate extension.
241 *) Support for policyMappings certificate extension.
244 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
245 ENGINE as defaults for all supported algorithms irrespective of
246 the 'flags' parameter. 'flags' is now honoured, so applications
247 should make sure they are passing it correctly.
250 *) Make sure the default DSA_METHOD implementation only uses its
251 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
252 and change its own handlers to be NULL so as to remove unnecessary
253 indirection. This lets alternative implementations fallback to the
254 default implementation more easily.
257 *) Support for directoryName in GeneralName related extensions
261 *) Make it possible to link applications using Makefile.shared.
262 Make that possible even when linking against static libraries!
265 *) Support for single pass processing for S/MIME signing. This now
266 means that S/MIME signing can be done from a pipe, in addition
267 cleartext signing (multipart/signed type) is effectively streaming
268 and the signed data does not need to be all held in memory.
270 This is done with a new flag PKCS7_STREAM. When this flag is set
271 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
272 is done after the data is output (and digests calculated) in
276 *) Add full support for -rpath/-R, both in shared libraries and
277 applications, at least on the platforms where it's known how
281 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
282 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
283 will now compute a table of multiples of the generator that
284 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
285 faster (notably in the case of a single point multiplication,
287 [Nils Larsch, Bodo Moeller]
289 *) IPv6 support for certificate extensions. The various extensions
290 which use the IP:a.b.c.d can now take IPv6 addresses using the
291 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
295 *) Added an ENGINE that implements RSA by performing private key
296 exponentiations with the GMP library. The conversions to and from
297 GMP's mpz_t format aren't optimised nor are any montgomery forms
298 cached, and on x86 it appears OpenSSL's own performance has caught up.
299 However there are likely to be other architectures where GMP could
300 provide a boost. This ENGINE is not built in by default, but it can be
301 specified at Configure time and should be accompanied by the necessary
302 linker additions, eg;
303 ./config -DOPENSSL_USE_GMP -lgmp
306 *) "openssl engine" will not display ENGINE/DSO load failure errors when
307 testing availability of engines with "-t" - the old behaviour is
308 produced by increasing the feature's verbosity with "-tt".
311 *) ECDSA routines: under certain error conditions uninitialized BN objects
312 could be freed. Solution: make sure initialization is performed early
313 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
317 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
318 and DH_METHOD (eg. by ENGINE implementations) to override the normal
319 software implementations. For DSA and DH, parameter generation can
320 also be overriden by providing the appropriate method callbacks.
323 *) Change the "progress" mechanism used in key-generation and
324 primality testing to functions that take a new BN_GENCB pointer in
325 place of callback/argument pairs. The new API functions have "_ex"
326 postfixes and the older functions are reimplemented as wrappers for
327 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
328 declarations of the old functions to help (graceful) attempts to
329 migrate to the new functions. Also, the new key-generation API
330 functions operate on a caller-supplied key-structure and return
331 success/failure rather than returning a key or NULL - this is to
332 help make "keygen" another member function of RSA_METHOD etc.
334 Example for using the new callback interface:
336 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
340 BN_GENCB_set(&my_cb, my_callback, my_arg);
342 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
343 /* For the meaning of a, b in calls to my_callback(), see the
344 * documentation of the function that calls the callback.
345 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
346 * my_callback should return 1 if it wants BN_is_prime_ex()
347 * to continue, or 0 to stop.
352 *) Change the ZLIB compression method to be stateful, and make it
353 available to TLS with the number defined in
354 draft-ietf-tls-compression-04.txt.
357 *) Add the ASN.1 structures and functions for CertificatePair, which
358 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
360 CertificatePair ::= SEQUENCE {
361 forward [0] Certificate OPTIONAL,
362 reverse [1] Certificate OPTIONAL,
363 -- at least one of the pair shall be present -- }
365 Also implement the PEM functions to read and write certificate
366 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
368 This needed to be defined, mostly for the sake of the LDAP
369 attribute crossCertificatePair, but may prove useful elsewhere as
373 *) Make it possible to inhibit symlinking of shared libraries in
374 Makefile.shared, for Cygwin's sake.
377 *) Extend the BIGNUM API by creating new macros that behave like
380 void BN_set_sign(BIGNUM *a, int neg);
381 int BN_get_sign(const BIGNUM *a);
383 and avoid the need to access 'a->neg' directly in applications.
384 [Nils Larsch <nla@trustcenter.de>]
386 *) Implement fast modular reduction for pseudo-Mersenne primes
387 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
388 EC_GROUP_new_curve_GFp() will now automatically use this
390 [Nils Larsch <nla@trustcenter.de>]
392 *) Add new lock type (CRYPTO_LOCK_BN).
395 *) Change the ENGINE framework to automatically load engines
396 dynamically from specific directories unless they could be
397 found to already be built in or loaded. Move all the
398 current engines except for the cryptodev one to a new
400 The engines in engines/ are built as shared libraries if
401 the "shared" options was given to ./Configure or ./config.
402 Otherwise, they are inserted in libcrypto.a.
403 /usr/local/ssl/engines is the default directory for dynamic
404 engines, but that can be overriden at configure time through
405 the usual use of --prefix and/or --openssldir, and at run
406 time with the environment variable OPENSSL_ENGINES.
407 [Geoff Thorpe and Richard Levitte]
409 *) Add Makefile.shared, a helper makefile to build shared
410 libraries. Addapt Makefile.org.
413 *) Add version info to Win32 DLLs.
414 [Peter 'Luna' Runestig" <peter@runestig.com>]
416 *) Add new 'medium level' PKCS#12 API. Certificates and keys
417 can be added using this API to created arbitrary PKCS#12
418 files while avoiding the low level API.
420 New options to PKCS12_create(), key or cert can be NULL and
421 will then be omitted from the output file. The encryption
422 algorithm NIDs can be set to -1 for no encryption, the mac
423 iteration count can be set to 0 to omit the mac.
425 Enhance pkcs12 utility by making the -nokeys and -nocerts
426 options work when creating a PKCS#12 file. New option -nomac
427 to omit the mac, NONE can be set for an encryption algorithm.
428 New code is modified to use the enhanced PKCS12_create()
429 instead of the low level API.
432 *) Extend ASN1 encoder to support indefinite length constructed
433 encoding. This can output sequences tags and octet strings in
434 this form. Modify pk7_asn1.c to support indefinite length
435 encoding. This is experimental and needs additional code to
436 be useful, such as an ASN1 bio and some enhanced streaming
439 Extend template encode functionality so that tagging is passed
440 down to the template encoder.
443 *) Let 'openssl req' fail if an argument to '-newkey' is not
444 recognized instead of using RSA as a default.
447 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
448 As these are not official, they are not included in "ALL";
449 the "ECCdraft" ciphersuite group alias can be used to select them.
450 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
452 *) Add ECDH engine support.
453 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
455 *) Add ECDH in new directory crypto/ecdh/.
456 [Douglas Stebila (Sun Microsystems Laboratories)]
458 *) Let BN_rand_range() abort with an error after 100 iterations
459 without success (which indicates a broken PRNG).
462 *) Change BN_mod_sqrt() so that it verifies that the input value
463 is really the square of the return value. (Previously,
464 BN_mod_sqrt would show GIGO behaviour.)
467 *) Add named elliptic curves over binary fields from X9.62, SECG,
468 and WAP/WTLS; add OIDs that were still missing.
470 [Sheueling Chang Shantz and Douglas Stebila
471 (Sun Microsystems Laboratories)]
473 *) Extend the EC library for elliptic curves over binary fields
474 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
477 EC_GF2m_simple_method
481 EC_GROUP_new_curve_GF2m
482 EC_GROUP_set_curve_GF2m
483 EC_GROUP_get_curve_GF2m
484 EC_POINT_set_affine_coordinates_GF2m
485 EC_POINT_get_affine_coordinates_GF2m
486 EC_POINT_set_compressed_coordinates_GF2m
488 Point compression for binary fields is disabled by default for
489 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
492 As binary polynomials are represented as BIGNUMs, various members
493 of the EC_GROUP and EC_POINT data structures can be shared
494 between the implementations for prime fields and binary fields;
495 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
496 are essentially identical to their ..._GFp counterparts.
497 (For simplicity, the '..._GFp' prefix has been dropped from
498 various internal method names.)
500 An internal 'field_div' method (similar to 'field_mul' and
501 'field_sqr') has been added; this is used only for binary fields.
503 [Sheueling Chang Shantz and Douglas Stebila
504 (Sun Microsystems Laboratories)]
506 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
507 through methods ('mul', 'precompute_mult').
509 The generic implementations (now internally called 'ec_wNAF_mul'
510 and 'ec_wNAF_precomputed_mult') remain the default if these
511 methods are undefined.
513 [Sheueling Chang Shantz and Douglas Stebila
514 (Sun Microsystems Laboratories)]
516 *) New function EC_GROUP_get_degree, which is defined through
517 EC_METHOD. For curves over prime fields, this returns the bit
518 length of the modulus.
520 [Sheueling Chang Shantz and Douglas Stebila
521 (Sun Microsystems Laboratories)]
523 *) New functions EC_GROUP_dup, EC_POINT_dup.
524 (These simply call ..._new and ..._copy).
526 [Sheueling Chang Shantz and Douglas Stebila
527 (Sun Microsystems Laboratories)]
529 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
530 Polynomials are represented as BIGNUMs (where the sign bit is not
531 used) in the following functions [macros]:
534 BN_GF2m_sub [= BN_GF2m_add]
535 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
536 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
537 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
539 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
540 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
541 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
542 BN_GF2m_cmp [= BN_ucmp]
544 (Note that only the 'mod' functions are actually for fields GF(2^m).
545 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
547 For some functions, an the irreducible polynomial defining a
548 field can be given as an 'unsigned int[]' with strictly
549 decreasing elements giving the indices of those bits that are set;
550 i.e., p[] represents the polynomial
551 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
553 p[0] > p[1] > ... > p[k] = 0.
554 This applies to the following functions:
559 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
560 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
563 BN_GF2m_mod_solve_quad_arr
567 Conversion can be performed by the following functions:
572 bntest.c has additional tests for binary polynomial arithmetic.
574 Two implementations for BN_GF2m_mod_div() are available.
575 The default algorithm simply uses BN_GF2m_mod_inv() and
576 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
577 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
578 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
580 [Sheueling Chang Shantz and Douglas Stebila
581 (Sun Microsystems Laboratories)]
583 *) Add new error code 'ERR_R_DISABLED' that can be used when some
584 functionality is disabled at compile-time.
585 [Douglas Stebila <douglas.stebila@sun.com>]
587 *) Change default behaviour of 'openssl asn1parse' so that more
588 information is visible when viewing, e.g., a certificate:
590 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
591 mode the content of non-printable OCTET STRINGs is output in a
592 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
593 avoid the appearance of a printable string.
594 [Nils Larsch <nla@trustcenter.de>]
596 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
598 EC_GROUP_set_asn1_flag()
599 EC_GROUP_get_asn1_flag()
600 EC_GROUP_set_point_conversion_form()
601 EC_GROUP_get_point_conversion_form()
602 These control ASN1 encoding details:
603 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
604 has been set to OPENSSL_EC_NAMED_CURVE.
605 - Points are encoded in uncompressed form by default; options for
606 asn1_for are as for point2oct, namely
607 POINT_CONVERSION_COMPRESSED
608 POINT_CONVERSION_UNCOMPRESSED
609 POINT_CONVERSION_HYBRID
611 Also add 'seed' and 'seed_len' members to EC_GROUP with access
615 EC_GROUP_get_seed_len()
616 This is used only for ASN1 purposes (so far).
617 [Nils Larsch <nla@trustcenter.de>]
619 *) Add 'field_type' member to EC_METHOD, which holds the NID
620 of the appropriate field type OID. The new function
621 EC_METHOD_get_field_type() returns this value.
622 [Nils Larsch <nla@trustcenter.de>]
629 providing useful interfaces to EC_POINT_point2oct() and
630 EC_POINT_oct2point().
631 [Nils Larsch <nla@trustcenter.de>]
633 *) Change internals of the EC library so that the functions
634 EC_GROUP_set_generator()
635 EC_GROUP_get_generator()
637 EC_GROUP_get_cofactor()
638 are implemented directly in crypto/ec/ec_lib.c and not dispatched
639 to methods, which would lead to unnecessary code duplication when
640 adding different types of curves.
641 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
643 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
644 arithmetic, and such that modified wNAFs are generated
645 (which avoid length expansion in many cases).
648 *) Add a function EC_GROUP_check_discriminant() (defined via
649 EC_METHOD) that verifies that the curve discriminant is non-zero.
651 Add a function EC_GROUP_check() that makes some sanity tests
652 on a EC_GROUP, its generator and order. This includes
653 EC_GROUP_check_discriminant().
654 [Nils Larsch <nla@trustcenter.de>]
656 *) Add ECDSA in new directory crypto/ecdsa/.
658 Add applications 'openssl ecparam' and 'openssl ecdsa'
659 (these are based on 'openssl dsaparam' and 'openssl dsa').
661 ECDSA support is also included in various other files across the
662 library. Most notably,
663 - 'openssl req' now has a '-newkey ecdsa:file' option;
664 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
665 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
666 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
667 them suitable for ECDSA where domain parameters must be
668 extracted before the specific public key;
669 - ECDSA engine support has been added.
670 [Nils Larsch <nla@trustcenter.de>]
672 *) Include some named elliptic curves, and add OIDs from X9.62,
673 SECG, and WAP/WTLS. Each curve can be obtained from the new
675 EC_GROUP_new_by_nid(),
676 and the list of available named curves can be obtained with
677 EC_get_builtin_curves().
678 Also add a 'curve_name' member to EC_GROUP objects, which can be
682 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
684 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
685 was actually never needed) and in BN_mul(). The removal in BN_mul()
686 required a small change in bn_mul_part_recursive() and the addition
687 of the functions bn_cmp_part_words(), bn_sub_part_words() and
688 bn_add_part_words(), which do the same thing as bn_cmp_words(),
689 bn_sub_words() and bn_add_words() except they take arrays with
693 Changes between 0.9.7c and 0.9.7d [xx XXX XXXX]
695 *) X509 verify fixes. Disable broken certificate workarounds when
696 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
697 keyUsage extension present. Don't accept CRLs with unhandled critical
698 extensions: since verify currently doesn't process CRL extensions this
699 rejects a CRL with *any* critical extensions. Add new verify error codes
703 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
704 A clarification of RFC2560 will require the use of OCTET STRINGs and
705 some implementations cannot handle the current raw format. Since OpenSSL
706 copies and compares OCSP nonces as opaque blobs without any attempt at
707 parsing them this should not create any compatibility issues.
710 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
711 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
712 this HMAC (and other) operations are several times slower than OpenSSL
716 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
717 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
719 *) Use the correct content when signing type "other".
722 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
724 *) Fix various bugs revealed by running the NISCC test suite:
726 Stop out of bounds reads in the ASN1 code when presented with
727 invalid tags (CAN-2003-0543 and CAN-2003-0544).
729 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
731 If verify callback ignores invalid public key errors don't try to check
732 certificate signature with the NULL public key.
736 *) New -ignore_err option in ocsp application to stop the server
737 exiting on the first error in a request.
740 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
741 if the server requested one: as stated in TLS 1.0 and SSL 3.0
745 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
746 extra data after the compression methods not only for TLS 1.0
747 but also for SSL 3.0 (as required by the specification).
748 [Bodo Moeller; problem pointed out by Matthias Loepfe]
750 *) Change X509_certificate_type() to mark the key as exported/exportable
751 when it's 512 *bits* long, not 512 bytes.
754 *) Change AES_cbc_encrypt() so it outputs exact multiple of
755 blocks during encryption.
758 *) Various fixes to base64 BIO and non blocking I/O. On write
759 flushes were not handled properly if the BIO retried. On read
760 data was not being buffered properly and had various logic bugs.
761 This also affects blocking I/O when the data being decoded is a
765 *) Various S/MIME bugfixes and compatibility changes:
766 output correct application/pkcs7 MIME type if
767 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
768 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
769 of files as .eml work). Correctly handle very long lines in MIME
773 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
775 *) Countermeasure against the Klima-Pokorny-Rosa extension of
776 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
777 a protocol version number mismatch like a decryption error
778 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
781 *) Turn on RSA blinding by default in the default implementation
782 to avoid a timing attack. Applications that don't want it can call
783 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
784 They would be ill-advised to do so in most cases.
785 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
787 *) Change RSA blinding code so that it works when the PRNG is not
788 seeded (in this case, the secret RSA exponent is abused as
789 an unpredictable seed -- if it is not unpredictable, there
790 is no point in blinding anyway). Make RSA blinding thread-safe
791 by remembering the creator's thread ID in rsa->blinding and
792 having all other threads use local one-time blinding factors
793 (this requires more computation than sharing rsa->blinding, but
794 avoids excessive locking; and if an RSA object is not shared
795 between threads, blinding will still be very fast).
798 yet to be integrated into this CVS branch:
799 - Geoff's ENGINE_set_default() fix
801 *) Target "mingw" now allows native Windows code to be generated in
802 the Cygwin environment as well as with the MinGW compiler.
805 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
807 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
808 via timing by performing a MAC computation even if incorrrect
809 block cipher padding has been found. This is a countermeasure
810 against active attacks where the attacker has to distinguish
811 between bad padding and a MAC verification error. (CAN-2003-0078)
813 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
814 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
815 Martin Vuagnoux (EPFL, Ilion)]
817 *) Make the no-err option work as intended. The intention with no-err
818 is not to have the whole error stack handling routines removed from
819 libcrypto, it's only intended to remove all the function name and
820 reason texts, thereby removing some of the footprint that may not
821 be interesting if those errors aren't displayed anyway.
823 NOTE: it's still possible for any application or module to have it's
824 own set of error texts inserted. The routines are there, just not
825 used by default when no-err is given.
828 *) Add support for FreeBSD on IA64.
829 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
831 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
832 Kerberos function mit_des_cbc_cksum(). Before this change,
833 the value returned by DES_cbc_cksum() was like the one from
834 mit_des_cbc_cksum(), except the bytes were swapped.
835 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
837 *) Allow an application to disable the automatic SSL chain building.
838 Before this a rather primitive chain build was always performed in
839 ssl3_output_cert_chain(): an application had no way to send the
840 correct chain if the automatic operation produced an incorrect result.
842 Now the chain builder is disabled if either:
844 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
846 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
848 The reasoning behind this is that an application would not want the
849 auto chain building to take place if extra chain certificates are
850 present and it might also want a means of sending no additional
851 certificates (for example the chain has two certificates and the
855 *) Add the possibility to build without the ENGINE framework.
856 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
858 *) Under Win32 gmtime() can return NULL: check return value in
859 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
862 *) DSA routines: under certain error conditions uninitialized BN objects
863 could be freed. Solution: make sure initialization is performed early
864 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
865 Nils Larsch <nla@trustcenter.de> via PR#459)
868 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
869 checked on reconnect on the client side, therefore session resumption
870 could still fail with a "ssl session id is different" error. This
871 behaviour is masked when SSL_OP_ALL is used due to
872 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
873 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
877 *) IA-32 assembler support enhancements: unified ELF targets, support
878 for SCO/Caldera platforms, fix for Cygwin shared build.
881 *) Add support for FreeBSD on sparc64. As a consequence, support for
882 FreeBSD on non-x86 processors is separate from x86 processors on
883 the config script, much like the NetBSD support.
884 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
886 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
888 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
891 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
892 code (06) was taken as the first octet of the session ID and the last
893 octet was ignored consequently. As a result SSLv2 client side session
894 caching could not have worked due to the session ID mismatch between
896 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
900 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
901 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
905 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
906 seems that in spite of existing for more than a year, many application
907 author have done nothing to provide the necessary callbacks, which
908 means that this particular engine will not work properly anywhere.
909 This is a very unfortunate situation which forces us, in the name
910 of usability, to give the hw_ncipher.c a static lock, which is part
912 NOTE: This is for the 0.9.7 series ONLY. This hack will never
913 appear in 0.9.8 or later. We EXPECT application authors to have
914 dealt properly with this when 0.9.8 is released (unless we actually
915 make such changes in the libcrypto locking code that changes will
916 have to be made anyway).
919 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
920 octets have been read, EOF or an error occurs. Without this change
921 some truncated ASN1 structures will not produce an error.
924 *) Disable Heimdal support, since it hasn't been fully implemented.
925 Still give the possibility to force the use of Heimdal, but with
926 warnings and a request that patches get sent to openssl-dev.
929 *) Add the VC-CE target, introduce the WINCE sysname, and add
930 INSTALL.WCE and appropriate conditionals to make it build.
931 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
933 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
934 cygssl-x.y.z.dll, where x, y and z are the major, minor and
935 edit numbers of the version.
936 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
938 *) Introduce safe string copy and catenation functions
939 (BUF_strlcpy() and BUF_strlcat()).
940 [Ben Laurie (CHATS) and Richard Levitte]
942 *) Avoid using fixed-size buffers for one-line DNs.
945 *) Add BUF_MEM_grow_clean() to avoid information leakage when
946 resizing buffers containing secrets, and use where appropriate.
949 *) Avoid using fixed size buffers for configuration file location.
952 *) Avoid filename truncation for various CA files.
955 *) Use sizeof in preference to magic numbers.
958 *) Avoid filename truncation in cert requests.
961 *) Add assertions to check for (supposedly impossible) buffer
965 *) Don't cache truncated DNS entries in the local cache (this could
966 potentially lead to a spoofing attack).
969 *) Fix various buffers to be large enough for hex/decimal
970 representations in a platform independent manner.
973 *) Add CRYPTO_realloc_clean() to avoid information leakage when
974 resizing buffers containing secrets, and use where appropriate.
977 *) Add BIO_indent() to avoid much slightly worrying code to do
981 *) Convert sprintf()/BIO_puts() to BIO_printf().
984 *) buffer_gets() could terminate with the buffer only half
988 *) Add assertions to prevent user-supplied crypto functions from
989 overflowing internal buffers by having large block sizes, etc.
992 *) New OPENSSL_assert() macro (similar to assert(), but enabled
996 *) Eliminate unused copy of key in RC4.
999 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1000 [Ben Laurie (CHATS)]
1002 *) Fix off-by-one error in EGD path.
1003 [Ben Laurie (CHATS)]
1005 *) If RANDFILE path is too long, ignore instead of truncating.
1006 [Ben Laurie (CHATS)]
1008 *) Eliminate unused and incorrectly sized X.509 structure
1010 [Ben Laurie (CHATS)]
1012 *) Eliminate unused and dangerous function knumber().
1013 [Ben Laurie (CHATS)]
1015 *) Eliminate unused and dangerous structure, KSSL_ERR.
1016 [Ben Laurie (CHATS)]
1018 *) Protect against overlong session ID context length in an encoded
1019 session object. Since these are local, this does not appear to be
1021 [Ben Laurie (CHATS)]
1023 *) Change from security patch (see 0.9.6e below) that did not affect
1024 the 0.9.6 release series:
1026 Remote buffer overflow in SSL3 protocol - an attacker could
1027 supply an oversized master key in Kerberos-enabled versions.
1029 [Ben Laurie (CHATS)]
1031 *) Change the SSL kerb5 codes to match RFC 2712.
1034 *) Make -nameopt work fully for req and add -reqopt switch.
1035 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1037 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1038 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1040 *) Make sure tests can be performed even if the corresponding algorithms
1041 have been removed entirely. This was also the last step to make
1042 OpenSSL compilable with DJGPP under all reasonable conditions.
1043 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1045 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1046 to allow version independent disabling of normally unselected ciphers,
1047 which may be activated as a side-effect of selecting a single cipher.
1049 (E.g., cipher list string "RSA" enables ciphersuites that are left
1050 out of "ALL" because they do not provide symmetric encryption.
1051 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1052 [Lutz Jaenicke, Bodo Moeller]
1054 *) Add appropriate support for separate platform-dependent build
1055 directories. The recommended way to make a platform-dependent
1056 build directory is the following (tested on Linux), maybe with
1059 # Place yourself outside of the OpenSSL source tree. In
1060 # this example, the environment variable OPENSSL_SOURCE
1061 # is assumed to contain the absolute OpenSSL source directory.
1062 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1063 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1064 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1065 mkdir -p `dirname $F`
1066 ln -s $OPENSSL_SOURCE/$F $F
1069 To be absolutely sure not to disturb the source tree, a "make clean"
1070 is a good thing. If it isn't successfull, don't worry about it,
1071 it probably means the source directory is very clean.
1074 *) Make sure any ENGINE control commands make local copies of string
1075 pointers passed to them whenever necessary. Otherwise it is possible
1076 the caller may have overwritten (or deallocated) the original string
1077 data when a later ENGINE operation tries to use the stored values.
1078 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1080 *) Improve diagnostics in file reading and command-line digests.
1081 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1083 *) Add AES modes CFB and OFB to the object database. Correct an
1084 error in AES-CFB decryption.
1087 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1088 allows existing EVP_CIPHER_CTX structures to be reused after
1089 calling EVP_*Final(). This behaviour is used by encryption
1090 BIOs and some applications. This has the side effect that
1091 applications must explicitly clean up cipher contexts with
1092 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1095 *) Check the values of dna and dnb in bn_mul_recursive before calling
1096 bn_mul_comba (a non zero value means the a or b arrays do not contain
1097 n2 elements) and fallback to bn_mul_normal if either is not zero.
1100 *) Fix escaping of non-ASCII characters when using the -subj option
1101 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1104 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1105 form for "surname", serialNumber has no short form.
1106 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1107 therefore remove "mail" short name for "internet 7".
1108 The OID for unique identifiers in X509 certificates is
1109 x500UniqueIdentifier, not uniqueIdentifier.
1110 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1113 *) Add an "init" command to the ENGINE config module and auto initialize
1114 ENGINEs. Without any "init" command the ENGINE will be initialized
1115 after all ctrl commands have been executed on it. If init=1 the
1116 ENGINE is initailized at that point (ctrls before that point are run
1117 on the uninitialized ENGINE and after on the initialized one). If
1118 init=0 then the ENGINE will not be iniatialized at all.
1121 *) Fix the 'app_verify_callback' interface so that the user-defined
1122 argument is actually passed to the callback: In the
1123 SSL_CTX_set_cert_verify_callback() prototype, the callback
1124 declaration has been changed from
1127 int (*cb)(X509_STORE_CTX *,void *);
1128 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1129 i=s->ctx->app_verify_callback(&ctx)
1130 has been changed into
1131 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1133 To update applications using SSL_CTX_set_cert_verify_callback(),
1134 a dummy argument can be added to their callback functions.
1135 [D. K. Smetters <smetters@parc.xerox.com>]
1137 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1138 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1140 *) Add and OPENSSL_LOAD_CONF define which will cause
1141 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1142 This allows older applications to transparently support certain
1143 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1144 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1145 load the config file and OPENSSL_add_all_algorithms_conf() which will
1146 always load it have also been added.
1149 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1150 Adjust NIDs and EVP layer.
1151 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1153 *) Config modules support in openssl utility.
1155 Most commands now load modules from the config file,
1156 though in a few (such as version) this isn't done
1157 because it couldn't be used for anything.
1159 In the case of ca and req the config file used is
1160 the same as the utility itself: that is the -config
1161 command line option can be used to specify an
1165 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1166 use "openssl_conf" if filename is NULL use default openssl config file.
1169 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1170 config section name. Add a new flag to tolerate a missing config file
1171 and move code to CONF_modules_load_file().
1174 *) Support for crypto accelerator cards from Accelerated Encryption
1175 Processing, www.aep.ie. (Use engine 'aep')
1176 The support was copied from 0.9.6c [engine] and adapted/corrected
1177 to work with the new engine framework.
1178 [AEP Inc. and Richard Levitte]
1180 *) Support for SureWare crypto accelerator cards from Baltimore
1181 Technologies. (Use engine 'sureware')
1182 The support was copied from 0.9.6c [engine] and adapted
1183 to work with the new engine framework.
1186 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1187 make the newer ENGINE framework commands for the CHIL engine work.
1188 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1190 *) Make it possible to produce shared libraries on ReliantUNIX.
1191 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1193 *) Add the configuration target debug-linux-ppro.
1194 Make 'openssl rsa' use the general key loading routines
1195 implemented in apps.c, and make those routines able to
1196 handle the key format FORMAT_NETSCAPE and the variant
1198 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1200 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1201 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1203 *) Add -keyform to rsautl, and document -engine.
1204 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1206 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1207 BIO_R_NO_SUCH_FILE error code rather than the generic
1208 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1211 *) Add new functions
1213 ERR_peek_last_error_line
1214 ERR_peek_last_error_line_data.
1215 These are similar to
1218 ERR_peek_error_line_data,
1219 but report on the latest error recorded rather than the first one
1220 still in the error queue.
1221 [Ben Laurie, Bodo Moeller]
1223 *) default_algorithms option in ENGINE config module. This allows things
1225 default_algorithms = ALL
1226 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1229 *) Prelminary ENGINE config module.
1232 *) New experimental application configuration code.
1235 *) Change the AES code to follow the same name structure as all other
1236 symmetric ciphers, and behave the same way. Move everything to
1237 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1238 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1240 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1241 [Ben Laurie and Theo de Raadt]
1243 *) Add option to output public keys in req command.
1244 [Massimiliano Pala madwolf@openca.org]
1246 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1247 (up to about 10% better than before for P-192 and P-224).
1250 *) New functions/macros
1252 SSL_CTX_set_msg_callback(ctx, cb)
1253 SSL_CTX_set_msg_callback_arg(ctx, arg)
1254 SSL_set_msg_callback(ssl, cb)
1255 SSL_set_msg_callback_arg(ssl, arg)
1257 to request calling a callback function
1259 void cb(int write_p, int version, int content_type,
1260 const void *buf, size_t len, SSL *ssl, void *arg)
1262 whenever a protocol message has been completely received
1263 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1264 protocol version according to which the SSL library interprets
1265 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1266 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1267 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1268 specification (change_cipher_spec(20), alert(21), handshake(22)).
1269 'buf' and 'len' point to the actual message, 'ssl' to the
1270 SSL object, and 'arg' is the application-defined value set by
1271 SSL[_CTX]_set_msg_callback_arg().
1273 'openssl s_client' and 'openssl s_server' have new '-msg' options
1274 to enable a callback that displays all protocol messages.
1277 *) Change the shared library support so shared libraries are built as
1278 soon as the corresponding static library is finished, and thereby get
1279 openssl and the test programs linked against the shared library.
1280 This still only happens when the keyword "shard" has been given to
1281 the configuration scripts.
1283 NOTE: shared library support is still an experimental thing, and
1284 backward binary compatibility is still not guaranteed.
1285 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1287 *) Add support for Subject Information Access extension.
1288 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1290 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1291 additional bytes when new memory had to be allocated, not just
1292 when reusing an existing buffer.
1295 *) New command line and configuration option 'utf8' for the req command.
1296 This allows field values to be specified as UTF8 strings.
1299 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1300 runs for the former and machine-readable output for the latter.
1303 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1304 of the e-mail address in the DN (i.e., it will go into a certificate
1305 extension only). The new configuration file option 'email_in_dn = no'
1306 has the same effect.
1307 [Massimiliano Pala madwolf@openca.org]
1309 *) Change all functions with names starting with des_ to be starting
1310 with DES_ instead. Add wrappers that are compatible with libdes,
1311 but are named _ossl_old_des_*. Finally, add macros that map the
1312 des_* symbols to the corresponding _ossl_old_des_* if libdes
1313 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1314 desired, the des_* symbols will be mapped to DES_*, with one
1317 Since we provide two compatibility mappings, the user needs to
1318 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1319 compatibility is desired. The default (i.e., when that macro
1320 isn't defined) is OpenSSL 0.9.6c compatibility.
1322 There are also macros that enable and disable the support of old
1323 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1324 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1325 are defined, the default will apply: to support the old des routines.
1327 In either case, one must include openssl/des.h to get the correct
1328 definitions. Do not try to just include openssl/des_old.h, that
1331 NOTE: This is a major break of an old API into a new one. Software
1332 authors are encouraged to switch to the DES_ style functions. Some
1333 time in the future, des_old.h and the libdes compatibility functions
1334 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1335 default), and then completely removed.
1338 *) Test for certificates which contain unsupported critical extensions.
1339 If such a certificate is found during a verify operation it is
1340 rejected by default: this behaviour can be overridden by either
1341 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1342 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1343 X509_supported_extension() has also been added which returns 1 if a
1344 particular extension is supported.
1347 *) Modify the behaviour of EVP cipher functions in similar way to digests
1348 to retain compatibility with existing code.
1351 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1352 compatibility with existing code. In particular the 'ctx' parameter does
1353 not have to be to be initialized before the call to EVP_DigestInit() and
1354 it is tidied up after a call to EVP_DigestFinal(). New function
1355 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1356 EVP_MD_CTX_copy() changed to not require the destination to be
1357 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1358 requires the destination to be valid.
1360 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1361 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1364 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1365 so that complete 'Handshake' protocol structures are kept in memory
1366 instead of overwriting 'msg_type' and 'length' with 'body' data.
1369 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1370 [Massimo Santin via Richard Levitte]
1372 *) Major restructuring to the underlying ENGINE code. This includes
1373 reduction of linker bloat, separation of pure "ENGINE" manipulation
1374 (initialisation, etc) from functionality dealing with implementations
1375 of specific crypto iterfaces. This change also introduces integrated
1376 support for symmetric ciphers and digest implementations - so ENGINEs
1377 can now accelerate these by providing EVP_CIPHER and EVP_MD
1378 implementations of their own. This is detailed in crypto/engine/README
1379 as it couldn't be adequately described here. However, there are a few
1380 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1381 were changed in the original introduction of ENGINE code have now
1382 reverted back - the hooking from this code to ENGINE is now a good
1383 deal more passive and at run-time, operations deal directly with
1384 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1385 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1386 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1387 they were not being used by the framework as there is no concept of a
1388 BIGNUM_METHOD and they could not be generalised to the new
1389 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1390 ENGINE_cpy() has been removed as it cannot be consistently defined in
1394 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1397 *) Change mkdef.pl to sort symbols that get the same entry number,
1398 and make sure the automatically generated functions ERR_load_*
1399 become part of libeay.num as well.
1402 *) New function SSL_renegotiate_pending(). This returns true once
1403 renegotiation has been requested (either SSL_renegotiate() call
1404 or HelloRequest/ClientHello receveived from the peer) and becomes
1405 false once a handshake has been completed.
1406 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1407 sends a HelloRequest, but does not ensure that a handshake takes
1408 place. SSL_renegotiate_pending() is useful for checking if the
1409 client has followed the request.)
1412 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1413 By default, clients may request session resumption even during
1414 renegotiation (if session ID contexts permit); with this option,
1415 session resumption is possible only in the first handshake.
1417 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1418 more bits available for options that should not be part of
1419 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1422 *) Add some demos for certificate and certificate request creation.
1425 *) Make maximum certificate chain size accepted from the peer application
1426 settable (SSL*_get/set_max_cert_list()), as proposed by
1427 "Douglas E. Engert" <deengert@anl.gov>.
1430 *) Add support for shared libraries for Unixware-7
1431 (Boyd Lynn Gerber <gerberb@zenez.com>).
1434 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1435 be done prior to destruction. Use this to unload error strings from
1436 ENGINEs that load their own error strings. NB: This adds two new API
1437 functions to "get" and "set" this destroy handler in an ENGINE.
1440 *) Alter all existing ENGINE implementations (except "openssl" and
1441 "openbsd") to dynamically instantiate their own error strings. This
1442 makes them more flexible to be built both as statically-linked ENGINEs
1443 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1444 Also, add stub code to each that makes building them as self-contained
1445 shared-libraries easier (see README.ENGINE).
1448 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1449 implementations into applications that are completely implemented in
1450 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1451 commands that can be used to configure what shared-library to load and
1452 to control aspects of the way it is handled. Also, made an update to
1453 the README.ENGINE file that brings its information up-to-date and
1454 provides some information and instructions on the "dynamic" ENGINE
1455 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1458 *) Make it possible to unload ranges of ERR strings with a new
1459 "ERR_unload_strings" function.
1462 *) Add a copy() function to EVP_MD.
1465 *) Make EVP_MD routines take a context pointer instead of just the
1466 md_data void pointer.
1469 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1470 that the digest can only process a single chunk of data
1471 (typically because it is provided by a piece of
1472 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1473 is only going to provide a single chunk of data, and hence the
1474 framework needn't accumulate the data for oneshot drivers.
1477 *) As with "ERR", make it possible to replace the underlying "ex_data"
1478 functions. This change also alters the storage and management of global
1479 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1480 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1481 index counters. The API functions that use this state have been changed
1482 to take a "class_index" rather than pointers to the class's local STACK
1483 and counter, and there is now an API function to dynamically create new
1484 classes. This centralisation allows us to (a) plug a lot of the
1485 thread-safety problems that existed, and (b) makes it possible to clean
1486 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1487 such data would previously have always leaked in application code and
1488 workarounds were in place to make the memory debugging turn a blind eye
1489 to it. Application code that doesn't use this new function will still
1490 leak as before, but their memory debugging output will announce it now
1491 rather than letting it slide.
1493 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1494 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1495 has a return value to indicate success or failure.
1498 *) Make it possible to replace the underlying "ERR" functions such that the
1499 global state (2 LHASH tables and 2 locks) is only used by the "default"
1500 implementation. This change also adds two functions to "get" and "set"
1501 the implementation prior to it being automatically set the first time
1502 any other ERR function takes place. Ie. an application can call "get",
1503 pass the return value to a module it has just loaded, and that module
1504 can call its own "set" function using that value. This means the
1505 module's "ERR" operations will use (and modify) the error state in the
1506 application and not in its own statically linked copy of OpenSSL code.
1509 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1510 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1511 the operation, and provides a more encapsulated way for external code
1512 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1513 to use these functions rather than manually incrementing the counts.
1515 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1518 *) Add EVP test program.
1521 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1524 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1525 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1526 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1527 These allow a CRL to be built without having to access X509_CRL fields
1528 directly. Modify 'ca' application to use new functions.
1531 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1532 bug workarounds. Rollback attack detection is a security feature.
1533 The problem will only arise on OpenSSL servers when TLSv1 is not
1534 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1535 Software authors not wanting to support TLSv1 will have special reasons
1536 for their choice and can explicitly enable this option.
1537 [Bodo Moeller, Lutz Jaenicke]
1539 *) Rationalise EVP so it can be extended: don't include a union of
1540 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1541 (similar to those existing for EVP_CIPHER_CTX).
1546 EVP_MD_CTX_init(&md); /* new function call */
1547 EVP_DigestInit(&md, EVP_sha1());
1548 EVP_DigestUpdate(&md, in, len);
1549 EVP_DigestFinal(&md, out, NULL);
1550 EVP_MD_CTX_cleanup(&md); /* new function call */
1554 *) Make DES key schedule conform to the usual scheme, as well as
1555 correcting its structure. This means that calls to DES functions
1556 now have to pass a pointer to a des_key_schedule instead of a
1557 plain des_key_schedule (which was actually always a pointer
1560 des_key_schedule ks;
1562 des_set_key_checked(..., &ks);
1563 des_ncbc_encrypt(..., &ks, ...);
1565 (Note that a later change renames 'des_...' into 'DES_...'.)
1568 *) Initial reduction of linker bloat: the use of some functions, such as
1569 PEM causes large amounts of unused functions to be linked in due to
1570 poor organisation. For example pem_all.c contains every PEM function
1571 which has a knock on effect of linking in large amounts of (unused)
1572 ASN1 code. Grouping together similar functions and splitting unrelated
1573 functions prevents this.
1576 *) Cleanup of EVP macros.
1579 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1580 correct _ecb suffix.
1583 *) Add initial OCSP responder support to ocsp application. The
1584 revocation information is handled using the text based index
1585 use by the ca application. The responder can either handle
1586 requests generated internally, supplied in files (for example
1587 via a CGI script) or using an internal minimal server.
1590 *) Add configuration choices to get zlib compression for TLS.
1593 *) Changes to Kerberos SSL for RFC 2712 compliance:
1594 1. Implemented real KerberosWrapper, instead of just using
1595 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1596 2. Implemented optional authenticator field of KerberosWrapper.
1598 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1599 and authenticator structs; see crypto/krb5/.
1601 Generalized Kerberos calls to support multiple Kerberos libraries.
1602 [Vern Staats <staatsvr@asc.hpc.mil>,
1603 Jeffrey Altman <jaltman@columbia.edu>
1604 via Richard Levitte]
1606 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1607 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1608 values for each of the key sizes rather than having just
1609 parameters (and 'speed' generating keys each time).
1612 *) Speed up EVP routines.
1615 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1616 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1617 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1618 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1620 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1621 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1622 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1625 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1627 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1630 *) Added the OS2-EMX target.
1631 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1633 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1634 to support NCONF routines in extension code. New function CONF_set_nconf()
1635 to allow functions which take an NCONF to also handle the old LHASH
1636 structure: this means that the old CONF compatible routines can be
1637 retained (in particular wrt extensions) without having to duplicate the
1638 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1641 *) Enhance the general user interface with mechanisms for inner control
1642 and with possibilities to have yes/no kind of prompts.
1645 *) Change all calls to low level digest routines in the library and
1646 applications to use EVP. Add missing calls to HMAC_cleanup() and
1647 don't assume HMAC_CTX can be copied using memcpy().
1648 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1650 *) Add the possibility to control engines through control names but with
1651 arbitrary arguments instead of just a string.
1652 Change the key loaders to take a UI_METHOD instead of a callback
1653 function pointer. NOTE: this breaks binary compatibility with earlier
1654 versions of OpenSSL [engine].
1655 Adapt the nCipher code for these new conditions and add a card insertion
1659 *) Enhance the general user interface with mechanisms to better support
1660 dialog box interfaces, application-defined prompts, the possibility
1661 to use defaults (for example default passwords from somewhere else)
1662 and interrupts/cancellations.
1665 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1666 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1669 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1670 tidy up some unnecessarily weird code in 'sk_new()').
1671 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1673 *) Change the key loading routines for ENGINEs to use the same kind
1674 callback (pem_password_cb) as all other routines that need this
1678 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1679 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1680 than this minimum value is recommended.
1683 *) New random seeder for OpenVMS, using the system process statistics
1684 that are easily reachable.
1687 *) Windows apparently can't transparently handle global
1688 variables defined in DLLs. Initialisations such as:
1690 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1692 wont compile. This is used by the any applications that need to
1693 declare their own ASN1 modules. This was fixed by adding the option
1694 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1695 needed for static libraries under Win32.
1698 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1699 setting of purpose and trust fields. New X509_STORE trust and
1700 purpose functions and tidy up setting in other SSL functions.
1703 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1704 structure. These are inherited by X509_STORE_CTX when it is
1705 initialised. This allows various defaults to be set in the
1706 X509_STORE structure (such as flags for CRL checking and custom
1707 purpose or trust settings) for functions which only use X509_STORE_CTX
1708 internally such as S/MIME.
1710 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1711 trust settings if they are not set in X509_STORE. This allows X509_STORE
1712 purposes and trust (in S/MIME for example) to override any set by default.
1714 Add command line options for CRL checking to smime, s_client and s_server
1718 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1719 are set then the CRL is looked up in the X509_STORE structure and
1720 its validity and signature checked, then if the certificate is found
1721 in the CRL the verify fails with a revoked error.
1723 Various new CRL related callbacks added to X509_STORE_CTX structure.
1725 Command line options added to 'verify' application to support this.
1727 This needs some additional work, such as being able to handle multiple
1728 CRLs with different times, extension based lookup (rather than just
1729 by subject name) and ultimately more complete V2 CRL extension
1733 *) Add a general user interface API (crypto/ui/). This is designed
1734 to replace things like des_read_password and friends (backward
1735 compatibility functions using this new API are provided).
1736 The purpose is to remove prompting functions from the DES code
1737 section as well as provide for prompting through dialog boxes in
1738 a window system and the like.
1741 *) Add "ex_data" support to ENGINE so implementations can add state at a
1742 per-structure level rather than having to store it globally.
1745 *) Make it possible for ENGINE structures to be copied when retrieved by
1746 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1747 This causes the "original" ENGINE structure to act like a template,
1748 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1749 operational state can be localised to each ENGINE structure, despite the
1750 fact they all share the same "methods". New ENGINE structures returned in
1751 this case have no functional references and the return value is the single
1752 structural reference. This matches the single structural reference returned
1753 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1757 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1758 needs to match any other type at all we need to manually clear the
1762 *) Changes to the "openssl engine" utility to include;
1763 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1764 about an ENGINE's available control commands.
1765 - executing control commands from command line arguments using the
1766 '-pre' and '-post' switches. '-post' is only used if '-t' is
1767 specified and the ENGINE is successfully initialised. The syntax for
1768 the individual commands are colon-separated, for example;
1769 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1772 *) New dynamic control command support for ENGINEs. ENGINEs can now
1773 declare their own commands (numbers), names (strings), descriptions,
1774 and input types for run-time discovery by calling applications. A
1775 subset of these commands are implicitly classed as "executable"
1776 depending on their input type, and only these can be invoked through
1777 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1778 can be based on user input, config files, etc). The distinction is
1779 that "executable" commands cannot return anything other than a boolean
1780 result and can only support numeric or string input, whereas some
1781 discoverable commands may only be for direct use through
1782 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1783 pointers, or other custom uses. The "executable" commands are to
1784 support parameterisations of ENGINE behaviour that can be
1785 unambiguously defined by ENGINEs and used consistently across any
1786 OpenSSL-based application. Commands have been added to all the
1787 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1788 control over shared-library paths without source code alterations.
1791 *) Changed all ENGINE implementations to dynamically allocate their
1792 ENGINEs rather than declaring them statically. Apart from this being
1793 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1794 this also allows the implementations to compile without using the
1795 internal engine_int.h header.
1798 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1799 'const' value. Any code that should be able to modify a RAND_METHOD
1800 should already have non-const pointers to it (ie. they should only
1801 modify their own ones).
1804 *) Made a variety of little tweaks to the ENGINE code.
1805 - "atalla" and "ubsec" string definitions were moved from header files
1806 to C code. "nuron" string definitions were placed in variables
1807 rather than hard-coded - allowing parameterisation of these values
1808 later on via ctrl() commands.
1809 - Removed unused "#if 0"'d code.
1810 - Fixed engine list iteration code so it uses ENGINE_free() to release
1811 structural references.
1812 - Constified the RAND_METHOD element of ENGINE structures.
1813 - Constified various get/set functions as appropriate and added
1814 missing functions (including a catch-all ENGINE_cpy that duplicates
1815 all ENGINE values onto a new ENGINE except reference counts/state).
1816 - Removed NULL parameter checks in get/set functions. Setting a method
1817 or function to NULL is a way of cancelling out a previously set
1818 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1819 and doesn't justify the extra error symbols and code.
1820 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1821 flags from engine_int.h to engine.h.
1822 - Changed prototypes for ENGINE handler functions (init(), finish(),
1823 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1826 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1827 to the algorithm using long division. The binary algorithm can be
1828 used only if the modulus is odd. On 32-bit systems, it is faster
1829 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1830 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1831 up to 450 bits. In 64-bit environments, the binary algorithm
1832 appears to be advantageous for much longer moduli; here we use it
1833 for moduli up to 2048 bits.
1836 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1837 could not support the combine flag in choice fields.
1840 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1841 extensions from a certificate request to the certificate.
1844 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1845 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1846 file: this allows the display of the certificate about to be
1847 signed to be customised, to allow certain fields to be included
1848 or excluded and extension details. The old system didn't display
1849 multicharacter strings properly, omitted fields not in the policy
1850 and couldn't display additional details such as extensions.
1853 *) Function EC_POINTs_mul for multiple scalar multiplication
1854 of an arbitrary number of elliptic curve points
1855 \sum scalars[i]*points[i],
1856 optionally including the generator defined for the EC_GROUP:
1857 scalar*generator + \sum scalars[i]*points[i].
1859 EC_POINT_mul is a simple wrapper function for the typical case
1860 that the point list has just one item (besides the optional
1864 *) First EC_METHODs for curves over GF(p):
1866 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1867 operations and provides various method functions that can also
1868 operate with faster implementations of modular arithmetic.
1870 EC_GFp_mont_method() reuses most functions that are part of
1871 EC_GFp_simple_method, but uses Montgomery arithmetic.
1873 [Bodo Moeller; point addition and point doubling
1874 implementation directly derived from source code provided by
1875 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1877 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1878 crypto/ec/ec_lib.c):
1880 Curves are EC_GROUP objects (with an optional group generator)
1881 based on EC_METHODs that are built into the library.
1883 Points are EC_POINT objects based on EC_GROUP objects.
1885 Most of the framework would be able to handle curves over arbitrary
1886 finite fields, but as there are no obvious types for fields other
1887 than GF(p), some functions are limited to that for now.
1890 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1891 that the file contains a complete HTTP response.
1894 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1895 change the def and num file printf format specifier from "%-40sXXX"
1896 to "%-39s XXX". The latter will always guarantee a space after the
1897 field while the former will cause them to run together if the field
1898 is 40 of more characters long.
1901 *) Constify the cipher and digest 'method' functions and structures
1902 and modify related functions to take constant EVP_MD and EVP_CIPHER
1906 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1907 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1910 *) Modify EVP_Digest*() routines so they now return values. Although the
1911 internal software routines can never fail additional hardware versions
1915 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1917 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1918 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1921 ERR_R_NESTED_ASN1_ERROR
1923 ERR_R_MISSING_ASN1_EOS
1924 were 4 .. 9, conflicting with
1925 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1927 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1928 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1930 Add new error code 'ERR_R_INTERNAL_ERROR'.
1933 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1937 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1938 sets the subject name for a new request or supersedes the
1939 subject name in a given request. Formats that can be parsed are
1940 'CN=Some Name, OU=myOU, C=IT'
1942 'CN=Some Name/OU=myOU/C=IT'.
1944 Add options '-batch' and '-verbose' to 'openssl req'.
1945 [Massimiliano Pala <madwolf@hackmasters.net>]
1947 *) Introduce the possibility to access global variables through
1948 functions on platform were that's the best way to handle exporting
1949 global variables in shared libraries. To enable this functionality,
1950 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1951 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1952 is normally done by Configure or something similar).
1954 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1955 in the source file (foo.c) like this:
1957 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1958 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1960 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1961 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1963 OPENSSL_DECLARE_GLOBAL(int,foo);
1964 #define foo OPENSSL_GLOBAL_REF(foo)
1965 OPENSSL_DECLARE_GLOBAL(double,bar);
1966 #define bar OPENSSL_GLOBAL_REF(bar)
1968 The #defines are very important, and therefore so is including the
1969 header file everywhere where the defined globals are used.
1971 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1972 of ASN.1 items, but that structure is a bit different.
1974 The largest change is in util/mkdef.pl which has been enhanced with
1975 better and easier to understand logic to choose which symbols should
1976 go into the Windows .def files as well as a number of fixes and code
1977 cleanup (among others, algorithm keywords are now sorted
1978 lexicographically to avoid constant rewrites).
1981 *) In BN_div() keep a copy of the sign of 'num' before writing the
1982 result to 'rm' because if rm==num the value will be overwritten
1983 and produce the wrong result if 'num' is negative: this caused
1984 problems with BN_mod() and BN_nnmod().
1987 *) Function OCSP_request_verify(). This checks the signature on an
1988 OCSP request and verifies the signer certificate. The signer
1989 certificate is just checked for a generic purpose and OCSP request
1993 *) Add OCSP_check_validity() function to check the validity of OCSP
1994 responses. OCSP responses are prepared in real time and may only
1995 be a few seconds old. Simply checking that the current time lies
1996 between thisUpdate and nextUpdate max reject otherwise valid responses
1997 caused by either OCSP responder or client clock inaccuracy. Instead
1998 we allow thisUpdate and nextUpdate to fall within a certain period of
1999 the current time. The age of the response can also optionally be
2000 checked. Two new options -validity_period and -status_age added to
2004 *) If signature or public key algorithm is unrecognized print out its
2005 OID rather that just UNKNOWN.
2008 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2009 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2010 ID to be generated from the issuer certificate alone which can then be
2011 passed to OCSP_id_issuer_cmp().
2014 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2015 ASN1 modules to export functions returning ASN1_ITEM pointers
2016 instead of the ASN1_ITEM structures themselves. This adds several
2017 new macros which allow the underlying ASN1 function/structure to
2018 be accessed transparently. As a result code should not use ASN1_ITEM
2019 references directly (such as &X509_it) but instead use the relevant
2020 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2021 use of the new ASN1 code on platforms where exporting structures
2022 is problematical (for example in shared libraries) but exporting
2023 functions returning pointers to structures is not.
2026 *) Add support for overriding the generation of SSL/TLS session IDs.
2027 These callbacks can be registered either in an SSL_CTX or per SSL.
2028 The purpose of this is to allow applications to control, if they wish,
2029 the arbitrary values chosen for use as session IDs, particularly as it
2030 can be useful for session caching in multiple-server environments. A
2031 command-line switch for testing this (and any client code that wishes
2032 to use such a feature) has been added to "s_server".
2033 [Geoff Thorpe, Lutz Jaenicke]
2035 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2036 of the form '#if defined(...) || defined(...) || ...' and
2037 '#if !defined(...) && !defined(...) && ...'. This also avoids
2038 the growing number of special cases it was previously handling.
2041 *) Make all configuration macros available for application by making
2042 sure they are available in opensslconf.h, by giving them names starting
2043 with "OPENSSL_" to avoid conflicts with other packages and by making
2044 sure e_os2.h will cover all platform-specific cases together with
2046 Additionally, it is now possible to define configuration/platform-
2047 specific names (called "system identities"). In the C code, these
2048 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2049 macro with the name beginning with "OPENSSL_SYS_", which is determined
2050 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2054 *) New option -set_serial to 'req' and 'x509' this allows the serial
2055 number to use to be specified on the command line. Previously self
2056 signed certificates were hard coded with serial number 0 and the
2057 CA options of 'x509' had to use a serial number in a file which was
2061 *) New options to 'ca' utility to support V2 CRL entry extensions.
2062 Currently CRL reason, invalidity date and hold instruction are
2063 supported. Add new CRL extensions to V3 code and some new objects.
2066 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2067 disable standard block padding (aka PKCS#5 padding) in the EVP
2068 API, which was previously mandatory. This means that the data is
2069 not padded in any way and so the total length much be a multiple
2070 of the block size, otherwise an error occurs.
2073 *) Initial (incomplete) OCSP SSL support.
2076 *) New function OCSP_parse_url(). This splits up a URL into its host,
2077 port and path components: primarily to parse OCSP URLs. New -url
2078 option to ocsp utility.
2081 *) New nonce behavior. The return value of OCSP_check_nonce() now
2082 reflects the various checks performed. Applications can decide
2083 whether to tolerate certain situations such as an absent nonce
2084 in a response when one was present in a request: the ocsp application
2085 just prints out a warning. New function OCSP_add1_basic_nonce()
2086 this is to allow responders to include a nonce in a response even if
2087 the request is nonce-less.
2090 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2091 skipped when using openssl x509 multiple times on a single input file,
2092 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2095 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2096 set string type: to handle setting ASN1_TIME structures. Fix ca
2097 utility to correctly initialize revocation date of CRLs.
2100 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2101 the clients preferred ciphersuites and rather use its own preferences.
2102 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2103 Internet Explorer by ensuring unchanged hash method during stepup.
2104 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2107 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2108 to aes and add a new 'exist' option to print out symbols that don't
2112 *) Additional options to ocsp utility to allow flags to be set and
2113 additional certificates supplied.
2116 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2117 OCSP client a number of certificate to only verify the response
2121 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2122 handle the new API. Currently only ECB, CBC modes supported. Add new
2125 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2126 Encryption Standard (AES) Ciphersuites for Transport Layer
2127 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2128 not enabled by default and were not part of the "ALL" ciphersuite
2129 alias because they were not yet official; they could be
2130 explicitly requested by specifying the "AESdraft" ciphersuite
2131 group alias. In the final release of OpenSSL 0.9.7, the group
2132 alias is called "AES" and is part of "ALL".)
2133 [Ben Laurie, Steve Henson, Bodo Moeller]
2135 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2136 request to response.
2139 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2140 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2141 extract information from a certificate request. OCSP_response_create()
2142 creates a response and optionally adds a basic response structure.
2143 OCSP_basic_add1_status() adds a complete single response to a basic
2144 response and returns the OCSP_SINGLERESP structure just added (to allow
2145 extensions to be included for example). OCSP_basic_add1_cert() adds a
2146 certificate to a basic response and OCSP_basic_sign() signs a basic
2147 response with various flags. New helper functions ASN1_TIME_check()
2148 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2149 (converts ASN1_TIME to GeneralizedTime).
2152 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2153 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2154 structure from a certificate. X509_pubkey_digest() digests the public_key
2155 contents: this is used in various key identifiers.
2158 *) Make sk_sort() tolerate a NULL argument.
2159 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2161 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2162 passed by the function are trusted implicitly. If any of them signed the
2163 response then it is assumed to be valid and is not verified.
2166 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2167 to data. This was previously part of the PKCS7 ASN1 code. This
2168 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2169 [Steve Henson, reported by Kenneth R. Robinette
2170 <support@securenetterm.com>]
2172 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2173 routines: without these tracing memory leaks is very painful.
2174 Fix leaks in PKCS12 and PKCS7 routines.
2177 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2178 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2179 effectively meant GeneralizedTime would never be used. Now it
2180 is initialised to -1 but X509_time_adj() now has to check the value
2181 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2182 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2183 [Steve Henson, reported by Kenneth R. Robinette
2184 <support@securenetterm.com>]
2186 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2187 result in a zero length in the ASN1_INTEGER structure which was
2188 not consistent with the structure when d2i_ASN1_INTEGER() was used
2189 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2190 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2191 where it did not print out a minus for negative ASN1_INTEGER.
2194 *) Add summary printout to ocsp utility. The various functions which
2195 convert status values to strings have been renamed to:
2196 OCSP_response_status_str(), OCSP_cert_status_str() and
2197 OCSP_crl_reason_str() and are no longer static. New options
2198 to verify nonce values and to disable verification. OCSP response
2199 printout format cleaned up.
2202 *) Add additional OCSP certificate checks. These are those specified
2203 in RFC2560. This consists of two separate checks: the CA of the
2204 certificate being checked must either be the OCSP signer certificate
2205 or the issuer of the OCSP signer certificate. In the latter case the
2206 OCSP signer certificate must contain the OCSP signing extended key
2207 usage. This check is performed by attempting to match the OCSP
2208 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2209 in the OCSP_CERTID structures of the response.
2212 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2213 and related routines. This uses the standard OpenSSL certificate
2214 verify routines to perform initial checks (just CA validity) and
2215 to obtain the certificate chain. Then additional checks will be
2216 performed on the chain. Currently the root CA is checked to see
2217 if it is explicitly trusted for OCSP signing. This is used to set
2218 a root CA as a global signing root: that is any certificate that
2219 chains to that CA is an acceptable OCSP signing certificate.
2222 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2223 extensions from a separate configuration file.
2224 As when reading extensions from the main configuration file,
2225 the '-extensions ...' option may be used for specifying the
2227 [Massimiliano Pala <madwolf@comune.modena.it>]
2229 *) New OCSP utility. Allows OCSP requests to be generated or
2230 read. The request can be sent to a responder and the output
2231 parsed, outputed or printed in text form. Not complete yet:
2232 still needs to check the OCSP response validity.
2235 *) New subcommands for 'openssl ca':
2236 'openssl ca -status <serial>' prints the status of the cert with
2237 the given serial number (according to the index file).
2238 'openssl ca -updatedb' updates the expiry status of certificates
2240 [Massimiliano Pala <madwolf@comune.modena.it>]
2242 *) New '-newreq-nodes' command option to CA.pl. This is like
2243 '-newreq', but calls 'openssl req' with the '-nodes' option
2244 so that the resulting key is not encrypted.
2245 [Damien Miller <djm@mindrot.org>]
2247 *) New configuration for the GNU Hurd.
2248 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2250 *) Initial code to implement OCSP basic response verify. This
2251 is currently incomplete. Currently just finds the signer's
2252 certificate and verifies the signature on the response.
2255 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2256 value of OPENSSLDIR. This is available via the new '-d' option
2257 to 'openssl version', and is also included in 'openssl version -a'.
2260 *) Allowing defining memory allocation callbacks that will be given
2261 file name and line number information in additional arguments
2262 (a const char* and an int). The basic functionality remains, as
2263 well as the original possibility to just replace malloc(),
2264 realloc() and free() by functions that do not know about these
2265 additional arguments. To register and find out the current
2266 settings for extended allocation functions, the following
2267 functions are provided:
2269 CRYPTO_set_mem_ex_functions
2270 CRYPTO_set_locked_mem_ex_functions
2271 CRYPTO_get_mem_ex_functions
2272 CRYPTO_get_locked_mem_ex_functions
2274 These work the same way as CRYPTO_set_mem_functions and friends.
2275 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2276 extended allocation function is enabled.
2277 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2278 a conventional allocation function is enabled.
2279 [Richard Levitte, Bodo Moeller]
2281 *) Finish off removing the remaining LHASH function pointer casts.
2282 There should no longer be any prototype-casting required when using
2283 the LHASH abstraction, and any casts that remain are "bugs". See
2284 the callback types and macros at the head of lhash.h for details
2285 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2288 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2289 If /dev/[u]random devices are not available or do not return enough
2290 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2292 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2293 /etc/entropy will be queried once each in this sequence, quering stops
2294 when enough entropy was collected without querying more sockets.
2297 *) Change the Unix RAND_poll() variant to be able to poll several
2298 random devices, as specified by DEVRANDOM, until a sufficient amount
2299 of data has been collected. We spend at most 10 ms on each file
2300 (select timeout) and read in non-blocking mode. DEVRANDOM now
2301 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2302 (previously it was just the string "/dev/urandom"), so on typical
2303 platforms the 10 ms delay will never occur.
2304 Also separate out the Unix variant to its own file, rand_unix.c.
2305 For VMS, there's a currently-empty rand_vms.c.
2308 *) Move OCSP client related routines to ocsp_cl.c. These
2309 provide utility functions which an application needing
2310 to issue a request to an OCSP responder and analyse the
2311 response will typically need: as opposed to those which an
2312 OCSP responder itself would need which will be added later.
2314 OCSP_request_sign() signs an OCSP request with an API similar
2315 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2316 response. OCSP_response_get1_basic() extracts basic response
2317 from response. OCSP_resp_find_status(): finds and extracts status
2318 information from an OCSP_CERTID structure (which will be created
2319 when the request structure is built). These are built from lower
2320 level functions which work on OCSP_SINGLERESP structures but
2321 wont normally be used unless the application wishes to examine
2322 extensions in the OCSP response for example.
2324 Replace nonce routines with a pair of functions.
2325 OCSP_request_add1_nonce() adds a nonce value and optionally
2326 generates a random value. OCSP_check_nonce() checks the
2327 validity of the nonce in an OCSP response.
2330 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2331 This doesn't copy the supplied OCSP_CERTID and avoids the
2332 need to free up the newly created id. Change return type
2333 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2334 This can then be used to add extensions to the request.
2335 Deleted OCSP_request_new(), since most of its functionality
2336 is now in OCSP_REQUEST_new() (and the case insensitive name
2337 clash) apart from the ability to set the request name which
2338 will be added elsewhere.
2341 *) Update OCSP API. Remove obsolete extensions argument from
2342 various functions. Extensions are now handled using the new
2343 OCSP extension code. New simple OCSP HTTP function which
2344 can be used to send requests and parse the response.
2347 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2348 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2349 uses the special reorder version of SET OF to sort the attributes
2350 and reorder them to match the encoded order. This resolves a long
2351 standing problem: a verify on a PKCS7 structure just after signing
2352 it used to fail because the attribute order did not match the
2353 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2354 it uses the received order. This is necessary to tolerate some broken
2355 software that does not order SET OF. This is handled by encoding
2356 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2357 to produce the required SET OF.
2360 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2361 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2362 files to get correct declarations of the ASN.1 item variables.
2365 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2366 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2367 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2368 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2369 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2370 ASN1_ITEM and no wrapper functions.
2373 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2374 replace the old function pointer based I/O routines. Change most of
2375 the *_d2i_bio() and *_d2i_fp() functions to use these.
2378 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2379 lines, recognice more "algorithms" that can be deselected, and make
2380 it complain about algorithm deselection that isn't recognised.
2383 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2384 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2385 to use new functions. Add NO_ASN1_OLD which can be set to remove
2386 some old style ASN1 functions: this can be used to determine if old
2387 code will still work when these eventually go away.
2390 *) New extension functions for OCSP structures, these follow the
2391 same conventions as certificates and CRLs.
2394 *) New function X509V3_add1_i2d(). This automatically encodes and
2395 adds an extension. Its behaviour can be customised with various
2396 flags to append, replace or delete. Various wrappers added for
2397 certifcates and CRLs.
2400 *) Fix to avoid calling the underlying ASN1 print routine when
2401 an extension cannot be parsed. Correct a typo in the
2402 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2405 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2406 entries for variables.
2409 *) Add functionality to apps/openssl.c for detecting locking
2410 problems: As the program is single-threaded, all we have
2411 to do is register a locking callback using an array for
2412 storing which locks are currently held by the program.
2415 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2416 SSL_get_ex_data_X509_STORE_idx(), which is used in
2417 ssl_verify_cert_chain() and thus can be called at any time
2418 during TLS/SSL handshakes so that thread-safety is essential.
2419 Unfortunately, the ex_data design is not at all suited
2420 for multi-threaded use, so it probably should be abolished.
2423 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2424 [Broadcom, tweaked and integrated by Geoff Thorpe]
2426 *) Move common extension printing code to new function
2427 X509V3_print_extensions(). Reorganise OCSP print routines and
2428 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2431 *) New function X509_signature_print() to remove duplication in some
2435 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2436 set (this was treated exactly the same as SET OF previously). This
2437 is used to reorder the STACK representing the structure to match the
2438 encoding. This will be used to get round a problem where a PKCS7
2439 structure which was signed could not be verified because the STACK
2440 order did not reflect the encoded order.
2443 *) Reimplement the OCSP ASN1 module using the new code.
2446 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2447 for its ASN1 operations. The old style function pointers still exist
2448 for now but they will eventually go away.
2451 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2452 completely replaces the old ASN1 functionality with a table driven
2453 encoder and decoder which interprets an ASN1_ITEM structure describing
2454 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2455 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2456 has also been converted to the new form.
2459 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2460 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2461 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2462 for negative moduli.
2465 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2466 of not touching the result's sign bit.
2469 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2473 *) Changed the LHASH code to use prototypes for callbacks, and created
2474 macros to declare and implement thin (optionally static) functions
2475 that provide type-safety and avoid function pointer casting for the
2476 type-specific callbacks.
2479 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2481 [Veers Staats <staatsvr@asc.hpc.mil>,
2482 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2484 *) Reformat the FAQ so the different questions and answers can be divided
2485 in sections depending on the subject.
2488 *) Have the zlib compression code load ZLIB.DLL dynamically under
2492 *) New function BN_mod_sqrt for computing square roots modulo a prime
2493 (using the probabilistic Tonelli-Shanks algorithm unless
2494 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2495 be handled deterministically).
2496 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2498 *) Make BN_mod_inverse faster by explicitly handling small quotients
2499 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2500 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2503 *) New function BN_kronecker.
2506 *) Fix BN_gcd so that it works on negative inputs; the result is
2507 positive unless both parameters are zero.
2508 Previously something reasonably close to an infinite loop was
2509 possible because numbers could be growing instead of shrinking
2510 in the implementation of Euclid's algorithm.
2513 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2514 sign of the number in question.
2516 Fix BN_is_word(a,w) to work correctly for w == 0.
2518 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2519 because its test if the absolute value of 'a' equals 'w'.
2520 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2521 it exists mostly for use in the implementations of BN_is_zero(),
2522 BN_is_one(), and BN_is_word().
2525 *) New function BN_swap.
2528 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2529 the exponentiation functions are more likely to produce reasonable
2530 results on negative inputs.
2533 *) Change BN_mod_mul so that the result is always non-negative.
2534 Previously, it could be negative if one of the factors was negative;
2535 I don't think anyone really wanted that behaviour.
2538 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2539 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2540 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2541 and add new functions:
2550 BN_mod_lshift1_quick
2554 These functions always generate non-negative results.
2556 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2557 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2559 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2560 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2561 be reduced modulo m.
2562 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2565 The following entry accidentily appeared in the CHANGES file
2566 distributed with OpenSSL 0.9.7. The modifications described in
2567 it do *not* apply to OpenSSL 0.9.7.
2569 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2570 was actually never needed) and in BN_mul(). The removal in BN_mul()
2571 required a small change in bn_mul_part_recursive() and the addition
2572 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2573 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2574 bn_sub_words() and bn_add_words() except they take arrays with
2579 *) In 'openssl passwd', verify passwords read from the terminal
2580 unless the '-salt' option is used (which usually means that
2581 verification would just waste user's time since the resulting
2582 hash is going to be compared with some given password hash)
2583 or the new '-noverify' option is used.
2585 This is an incompatible change, but it does not affect
2586 non-interactive use of 'openssl passwd' (passwords on the command
2587 line, '-stdin' option, '-in ...' option) and thus should not
2591 *) Remove all references to RSAref, since there's no more need for it.
2594 *) Make DSO load along a path given through an environment variable
2595 (SHLIB_PATH) with shl_load().
2598 *) Constify the ENGINE code as a result of BIGNUM constification.
2599 Also constify the RSA code and most things related to it. In a
2600 few places, most notable in the depth of the ASN.1 code, ugly
2601 casts back to non-const were required (to be solved at a later
2605 *) Make it so the openssl application has all engines loaded by default.
2608 *) Constify the BIGNUM routines a little more.
2611 *) Add the following functions:
2613 ENGINE_load_cswift()
2615 ENGINE_load_atalla()
2617 ENGINE_load_builtin_engines()
2619 That way, an application can itself choose if external engines that
2620 are built-in in OpenSSL shall ever be used or not. The benefit is
2621 that applications won't have to be linked with libdl or other dso
2622 libraries unless it's really needed.
2624 Changed 'openssl engine' to load all engines on demand.
2625 Changed the engine header files to avoid the duplication of some
2626 declarations (they differed!).
2629 *) 'openssl engine' can now list capabilities.
2632 *) Better error reporting in 'openssl engine'.
2635 *) Never call load_dh_param(NULL) in s_server.
2638 *) Add engine application. It can currently list engines by name and
2639 identity, and test if they are actually available.
2642 *) Improve RPM specification file by forcing symbolic linking and making
2643 sure the installed documentation is also owned by root.root.
2644 [Damien Miller <djm@mindrot.org>]
2646 *) Give the OpenSSL applications more possibilities to make use of
2647 keys (public as well as private) handled by engines.
2650 *) Add OCSP code that comes from CertCo.
2653 *) Add VMS support for the Rijndael code.
2656 *) Added untested support for Nuron crypto accelerator.
2659 *) Add support for external cryptographic devices. This code was
2660 previously distributed separately as the "engine" branch.
2661 [Geoff Thorpe, Richard Levitte]
2663 *) Rework the filename-translation in the DSO code. It is now possible to
2664 have far greater control over how a "name" is turned into a filename
2665 depending on the operating environment and any oddities about the
2666 different shared library filenames on each system.
2669 *) Support threads on FreeBSD-elf in Configure.
2672 *) Fix for SHA1 assembly problem with MASM: it produces
2673 warnings about corrupt line number information when assembling
2674 with debugging information. This is caused by the overlapping
2676 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2679 NCONF_get_number() has no error checking at all. As a replacement,
2680 NCONF_get_number_e() is defined (_e for "error checking") and is
2681 promoted strongly. The old NCONF_get_number is kept around for
2682 binary backward compatibility.
2683 Make it possible for methods to load from something other than a BIO,
2684 by providing a function pointer that is given a name instead of a BIO.
2685 For example, this could be used to load configuration data from an
2689 *) Fix for non blocking accept BIOs. Added new I/O special reason
2690 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2691 with non blocking I/O was not possible because no retry code was
2692 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2696 *) Added the beginnings of Rijndael support.
2699 *) Fix for bug in DirectoryString mask setting. Add support for
2700 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2701 to allow certificate printing to more controllable, additional
2702 'certopt' option to 'x509' to allow new printing options to be
2706 *) Clean old EAY MD5 hack from e_os.h.
2709 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2711 *) Fix various bugs revealed by running the NISCC test suite:
2713 Stop out of bounds reads in the ASN1 code when presented with
2714 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2716 If verify callback ignores invalid public key errors don't try to check
2717 certificate signature with the NULL public key.
2721 *) Fix various bugs revealed by running the NISCC test suite:
2723 Stop out of bounds reads in the ASN1 code when presented with
2724 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2726 If verify callback ignores invalid public key errors don't try to check
2727 certificate signature with the NULL public key.
2731 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2732 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2736 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2737 extra data after the compression methods not only for TLS 1.0
2738 but also for SSL 3.0 (as required by the specification).
2739 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2741 *) Change X509_certificate_type() to mark the key as exported/exportable
2742 when it's 512 *bits* long, not 512 bytes.
2745 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2747 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2748 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2749 a protocol version number mismatch like a decryption error
2750 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2753 *) Turn on RSA blinding by default in the default implementation
2754 to avoid a timing attack. Applications that don't want it can call
2755 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2756 They would be ill-advised to do so in most cases.
2757 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2759 *) Change RSA blinding code so that it works when the PRNG is not
2760 seeded (in this case, the secret RSA exponent is abused as
2761 an unpredictable seed -- if it is not unpredictable, there
2762 is no point in blinding anyway). Make RSA blinding thread-safe
2763 by remembering the creator's thread ID in rsa->blinding and
2764 having all other threads use local one-time blinding factors
2765 (this requires more computation than sharing rsa->blinding, but
2766 avoids excessive locking; and if an RSA object is not shared
2767 between threads, blinding will still be very fast).
2770 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2772 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2773 via timing by performing a MAC computation even if incorrrect
2774 block cipher padding has been found. This is a countermeasure
2775 against active attacks where the attacker has to distinguish
2776 between bad padding and a MAC verification error. (CAN-2003-0078)
2778 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2779 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2780 Martin Vuagnoux (EPFL, Ilion)]
2782 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2784 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2785 memory from it's contents. This is done with a counter that will
2786 place alternating values in each byte. This can be used to solve
2787 two issues: 1) the removal of calls to memset() by highly optimizing
2788 compilers, and 2) cleansing with other values than 0, since those can
2789 be read through on certain media, for example a swap space on disk.
2792 *) Bugfix: client side session caching did not work with external caching,
2793 because the session->cipher setting was not restored when reloading
2794 from the external cache. This problem was masked, when
2795 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2796 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2799 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2800 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2801 [Zeev Lieber <zeev-l@yahoo.com>]
2803 *) Undo an undocumented change introduced in 0.9.6e which caused
2804 repeated calls to OpenSSL_add_all_ciphers() and
2805 OpenSSL_add_all_digests() to be ignored, even after calling
2809 *) Change the default configuration reader to deal with last line not
2810 being properly terminated.
2813 *) Change X509_NAME_cmp() so it applies the special rules on handling
2814 DN values that are of type PrintableString, as well as RDNs of type
2815 emailAddress where the value has the type ia5String.
2816 [stefank@valicert.com via Richard Levitte]
2818 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2819 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2820 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2821 the bitwise-OR of the two for use by the majority of applications
2822 wanting this behaviour, and update the docs. The documented
2823 behaviour and actual behaviour were inconsistent and had been
2824 changing anyway, so this is more a bug-fix than a behavioural
2826 [Geoff Thorpe, diagnosed by Nadav Har'El]
2828 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2829 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2832 *) Fix initialization code race conditions in
2833 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2834 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2835 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2836 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2837 ssl2_get_cipher_by_char(),
2838 ssl3_get_cipher_by_char().
2839 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2841 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2842 the cached sessions are flushed, as the remove_cb() might use ex_data
2843 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2844 (see [openssl.org #212]).
2845 [Geoff Thorpe, Lutz Jaenicke]
2847 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2848 length, instead of the encoding length to d2i_ASN1_OBJECT.
2851 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2853 *) [In 0.9.6g-engine release:]
2854 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2855 [Lynn Gazis <lgazis@rainbow.com>]
2857 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2859 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2860 and get fix the header length calculation.
2861 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2862 Alon Kantor <alonk@checkpoint.com> (and others),
2865 *) Use proper error handling instead of 'assertions' in buffer
2866 overflow checks added in 0.9.6e. This prevents DoS (the
2867 assertions could call abort()).
2868 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2870 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2872 *) Add various sanity checks to asn1_get_length() to reject
2873 the ASN1 length bytes if they exceed sizeof(long), will appear
2874 negative or the content length exceeds the length of the
2876 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2878 *) Fix cipher selection routines: ciphers without encryption had no flags
2879 for the cipher strength set and where therefore not handled correctly
2880 by the selection routines (PR #130).
2883 *) Fix EVP_dsa_sha macro.
2887 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2888 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2889 that was added in OpenSSL 0.9.6d.
2891 As the countermeasure turned out to be incompatible with some
2892 broken SSL implementations, the new option is part of SSL_OP_ALL.
2893 SSL_OP_ALL is usually employed when compatibility with weird SSL
2894 implementations is desired (e.g. '-bugs' option to 's_client' and
2895 's_server'), so the new option is automatically set in many
2899 *) Changes in security patch:
2901 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2902 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2903 Air Force Materiel Command, USAF, under agreement number
2906 *) Add various sanity checks to asn1_get_length() to reject
2907 the ASN1 length bytes if they exceed sizeof(long), will appear
2908 negative or the content length exceeds the length of the
2909 supplied buffer. (CAN-2002-0659)
2910 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2912 *) Assertions for various potential buffer overflows, not known to
2914 [Ben Laurie (CHATS)]
2916 *) Various temporary buffers to hold ASCII versions of integers were
2917 too small for 64 bit platforms. (CAN-2002-0655)
2918 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2920 *) Remote buffer overflow in SSL3 protocol - an attacker could
2921 supply an oversized session ID to a client. (CAN-2002-0656)
2922 [Ben Laurie (CHATS)]
2924 *) Remote buffer overflow in SSL2 protocol - an attacker could
2925 supply an oversized client master key. (CAN-2002-0656)
2926 [Ben Laurie (CHATS)]
2928 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2930 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2931 encoded as NULL) with id-dsa-with-sha1.
2932 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2934 *) Check various X509_...() return values in apps/req.c.
2935 [Nils Larsch <nla@trustcenter.de>]
2937 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2938 an end-of-file condition would erronously be flagged, when the CRLF
2939 was just at the end of a processed block. The bug was discovered when
2940 processing data through a buffering memory BIO handing the data to a
2941 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2942 <ptsekov@syntrex.com> and Nedelcho Stanev.
2945 *) Implement a countermeasure against a vulnerability recently found
2946 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2947 before application data chunks to avoid the use of known IVs
2948 with data potentially chosen by the attacker.
2951 *) Fix length checks in ssl3_get_client_hello().
2954 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2955 to prevent ssl3_read_internal() from incorrectly assuming that
2956 ssl3_read_bytes() found application data while handshake
2957 processing was enabled when in fact s->s3->in_read_app_data was
2958 merely automatically cleared during the initial handshake.
2959 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2961 *) Fix object definitions for Private and Enterprise: they were not
2962 recognized in their shortname (=lowercase) representation. Extend
2963 obj_dat.pl to issue an error when using undefined keywords instead
2964 of silently ignoring the problem (Svenning Sorensen
2965 <sss@sss.dnsalias.net>).
2968 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2969 generators, i.e. generators other than 2 and 5. (Previously, the
2970 code did not properly initialise the 'add' and 'rem' values to
2971 BN_generate_prime().)
2973 In the new general case, we do not insist that 'generator' is
2974 actually a primitive root: This requirement is rather pointless;
2975 a generator of the order-q subgroup is just as good, if not
2979 *) Map new X509 verification errors to alerts. Discovered and submitted by
2980 Tom Wu <tom@arcot.com>.
2983 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2984 returning non-zero before the data has been completely received
2985 when using non-blocking I/O.
2986 [Bodo Moeller; problem pointed out by John Hughes]
2988 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2989 [Ben Laurie, Lutz Jaenicke]
2991 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2992 Yoram Zahavi <YoramZ@gilian.com>).
2995 *) Add information about CygWin 1.3 and on, and preserve proper
2996 configuration for the versions before that.
2997 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2999 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3000 check whether we deal with a copy of a session and do not delete from
3001 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3002 <izhar@checkpoint.com>.
3005 *) Do not store session data into the internal session cache, if it
3006 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3007 flag is set). Proposed by Aslam <aslam@funk.com>.
3010 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3014 *) [In 0.9.6d-engine release:]
3015 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3016 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3018 *) Add the configuration target linux-s390x.
3019 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3021 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3022 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3023 variable as an indication that a ClientHello message has been
3024 received. As the flag value will be lost between multiple
3025 invocations of ssl3_accept when using non-blocking I/O, the
3026 function may not be aware that a handshake has actually taken
3027 place, thus preventing a new session from being added to the
3030 To avoid this problem, we now set s->new_session to 2 instead of
3031 using a local variable.
3032 [Lutz Jaenicke, Bodo Moeller]
3034 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3035 if the SSL_R_LENGTH_MISMATCH error is detected.
3036 [Geoff Thorpe, Bodo Moeller]
3038 *) New 'shared_ldflag' column in Configure platform table.
3041 *) Fix EVP_CIPHER_mode macro.
3042 ["Dan S. Camper" <dan@bti.net>]
3044 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3045 type, we must throw them away by setting rr->length to 0.
3046 [D P Chang <dpc@qualys.com>]
3048 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3050 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3051 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3052 worked incorrectly for those cases where range = 10..._2 and
3053 3*range is two bits longer than range.)
3056 *) Only add signing time to PKCS7 structures if it is not already
3060 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3061 OBJ_ld_ce should be OBJ_id_ce.
3062 Also some ip-pda OIDs in crypto/objects/objects.txt were
3063 incorrect (cf. RFC 3039).
3064 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3066 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3067 returns early because it has nothing to do.
3068 [Andy Schneider <andy.schneider@bjss.co.uk>]
3070 *) [In 0.9.6c-engine release:]
3071 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3072 [Andy Schneider <andy.schneider@bjss.co.uk>]
3074 *) [In 0.9.6c-engine release:]
3075 Add support for Cryptographic Appliance's keyserver technology.
3076 (Use engine 'keyclient')
3077 [Cryptographic Appliances and Geoff Thorpe]
3079 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3080 is called via tools/c89.sh because arguments have to be
3081 rearranged (all '-L' options must appear before the first object
3083 [Richard Shapiro <rshapiro@abinitio.com>]
3085 *) [In 0.9.6c-engine release:]
3086 Add support for Broadcom crypto accelerator cards, backported
3088 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3090 *) [In 0.9.6c-engine release:]
3091 Add support for SureWare crypto accelerator cards from
3092 Baltimore Technologies. (Use engine 'sureware')
3093 [Baltimore Technologies and Mark Cox]
3095 *) [In 0.9.6c-engine release:]
3096 Add support for crypto accelerator cards from Accelerated
3097 Encryption Processing, www.aep.ie. (Use engine 'aep')
3098 [AEP Inc. and Mark Cox]
3100 *) Add a configuration entry for gcc on UnixWare.
3101 [Gary Benson <gbenson@redhat.com>]
3103 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3104 messages are stored in a single piece (fixed-length part and
3105 variable-length part combined) and fix various bugs found on the way.
3108 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3109 instead. BIO_gethostbyname() does not know what timeouts are
3110 appropriate, so entries would stay in cache even when they have
3112 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3114 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3115 faced with a pathologically small ClientHello fragment that does
3116 not contain client_version: Instead of aborting with an error,
3117 simply choose the highest available protocol version (i.e.,
3118 TLS 1.0 unless it is disabled). In practice, ClientHello
3119 messages are never sent like this, but this change gives us
3120 strictly correct behaviour at least for TLS.
3123 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3124 never resets s->method to s->ctx->method when called from within
3125 one of the SSL handshake functions.
3126 [Bodo Moeller; problem pointed out by Niko Baric]
3128 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3129 (sent using the client's version number) if client_version is
3130 smaller than the protocol version in use. Also change
3131 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3132 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3133 the client will at least see that alert.
3136 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3140 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3141 client receives HelloRequest while in a handshake.
3142 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3144 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3145 should end in 'break', not 'goto end' which circuments various
3146 cleanups done in state SSL_ST_OK. But session related stuff
3147 must be disabled for SSL_ST_OK in the case that we just sent a
3150 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3151 before just sending a HelloRequest.
3152 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3154 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3155 reveal whether illegal block cipher padding was found or a MAC
3156 verification error occured. (Neither SSLerr() codes nor alerts
3157 are directly visible to potential attackers, but the information
3158 may leak via logfiles.)
3160 Similar changes are not required for the SSL 2.0 implementation
3161 because the number of padding bytes is sent in clear for SSL 2.0,
3162 and the extra bytes are just ignored. However ssl/s2_pkt.c
3163 failed to verify that the purported number of padding bytes is in
3167 *) Add OpenUNIX-8 support including shared libraries
3168 (Boyd Lynn Gerber <gerberb@zenez.com>).
3171 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3172 'wristwatch attack' using huge encoding parameters (cf.
3173 James H. Manger's CRYPTO 2001 paper). Note that the
3174 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3175 encoding parameters and hence was not vulnerable.
3178 *) BN_sqr() bug fix.
3179 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3181 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3182 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3183 followed by modular reduction.
3184 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3186 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3187 equivalent based on BN_pseudo_rand() instead of BN_rand().
3190 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3191 This function was broken, as the check for a new client hello message
3192 to handle SGC did not allow these large messages.
3193 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3196 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3199 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3200 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3203 *) Rework the configuration and shared library support for Tru64 Unix.
3204 The configuration part makes use of modern compiler features and
3205 still retains old compiler behavior for those that run older versions
3206 of the OS. The shared library support part includes a variant that
3207 uses the RPATH feature, and is available through the special
3208 configuration target "alpha-cc-rpath", which will never be selected
3210 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3212 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3213 with the same message size as in ssl3_get_certificate_request().
3214 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3215 messages might inadvertently be reject as too long.
3216 [Petr Lampa <lampa@fee.vutbr.cz>]
3218 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3221 *) Modified SSL library such that the verify_callback that has been set
3222 specificly for an SSL object with SSL_set_verify() is actually being
3223 used. Before the change, a verify_callback set with this function was
3224 ignored and the verify_callback() set in the SSL_CTX at the time of
3225 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3226 to allow the necessary settings.
3229 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3230 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3231 done automatically (in contradiction to the requirements of the C
3232 standard). This made problems when used from OpenSSH.
3235 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3236 dh->length and always used
3238 BN_rand_range(priv_key, dh->p).
3240 BN_rand_range() is not necessary for Diffie-Hellman, and this
3241 specific range makes Diffie-Hellman unnecessarily inefficient if
3242 dh->length (recommended exponent length) is much smaller than the
3243 length of dh->p. We could use BN_rand_range() if the order of
3244 the subgroup was stored in the DH structure, but we only have
3249 BN_rand(priv_key, l, ...)
3251 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3257 RSA_eay_public_encrypt
3258 RSA_eay_private_decrypt
3259 RSA_eay_private_encrypt (signing)
3260 RSA_eay_public_decrypt (signature verification)
3262 (default implementations for RSA_public_encrypt,
3263 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3264 always reject numbers >= n.
3267 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3268 to synchronize access to 'locking_thread'. This is necessary on
3269 systems where access to 'locking_thread' (an 'unsigned long'
3270 variable) is not atomic.
3273 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3274 *before* setting the 'crypto_lock_rand' flag. The previous code had
3275 a race condition if 0 is a valid thread ID.
3276 [Travis Vitek <vitek@roguewave.com>]
3278 *) Add support for shared libraries under Irix.
3279 [Albert Chin-A-Young <china@thewrittenword.com>]
3281 *) Add configuration option to build on Linux on both big-endian and
3283 [Ralf Baechle <ralf@uni-koblenz.de>]
3285 *) Add the possibility to create shared libraries on HP-UX.
3288 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3290 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3291 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3292 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3293 PRNG state recovery was possible based on the output of
3294 one PRNG request appropriately sized to gain knowledge on
3295 'md' followed by enough consecutive 1-byte PRNG requests
3296 to traverse all of 'state'.
3298 1. When updating 'md_local' (the current thread's copy of 'md')
3299 during PRNG output generation, hash all of the previous
3300 'md_local' value, not just the half used for PRNG output.
3302 2. Make the number of bytes from 'state' included into the hash
3303 independent from the number of PRNG bytes requested.
3305 The first measure alone would be sufficient to avoid
3306 Markku-Juhani's attack. (Actually it had never occurred
3307 to me that the half of 'md_local' used for chaining was the
3308 half from which PRNG output bytes were taken -- I had always
3309 assumed that the secret half would be used.) The second
3310 measure makes sure that additional data from 'state' is never
3311 mixed into 'md_local' in small portions; this heuristically
3312 further strengthens the PRNG.
3315 *) Fix crypto/bn/asm/mips3.s.
3318 *) When only the key is given to "enc", the IV is undefined. Print out
3319 an error message in this case.
3322 *) Handle special case when X509_NAME is empty in X509 printing routines.
3325 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3326 positive and less than q.
3329 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3330 used: it isn't thread safe and the add_lock_callback should handle
3332 [Paul Rose <Paul.Rose@bridge.com>]
3334 *) Verify that incoming data obeys the block size in
3335 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3339 [Ulf Möller, Bodo Möller]
3341 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3342 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3343 when fixing the server behaviour for backwards-compatible 'client
3344 hello' messages. (Note that the attack is impractical against
3345 SSL 3.0 and TLS 1.0 anyway because length and version checking
3346 means that the probability of guessing a valid ciphertext is
3347 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3350 Before 0.9.5, the countermeasure (hide the error by generating a
3351 random 'decryption result') did not work properly because
3352 ERR_clear_error() was missing, meaning that SSL_get_error() would
3353 detect the supposedly ignored error.
3355 Both problems are now fixed.
3358 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3359 (previously it was 1024).
3362 *) Fix for compatibility mode trust settings: ignore trust settings
3363 unless some valid trust or reject settings are present.
3366 *) Fix for blowfish EVP: its a variable length cipher.
3369 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3370 parameters in DSA public key structures and return an error in the
3371 DSA routines if parameters are absent.
3374 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3375 in the current directory if neither $RANDFILE nor $HOME was set.
3376 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3377 caused some confusion to Windows users who haven't defined $HOME.
3378 Thus RAND_file_name() is changed again: e_os.h can define a
3379 DEFAULT_HOME, which will be used if $HOME is not set.
3380 For Windows, we use "C:"; on other platforms, we still require
3381 environment variables.
3383 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3384 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3385 having multiple threads call RAND_poll() concurrently.
3388 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3389 combination of a flag and a thread ID variable.
3390 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3391 flag), *other* threads can enter ssleay_add_bytes without obeying
3392 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3393 that they do not hold after the first thread unsets add_do_not_lock).
3396 *) Change bctest again: '-x' expressions are not available in all
3400 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3402 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3403 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3405 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3406 the default extension for executables, if any. Also, make the perl
3407 scripts that use symlink() to test if it really exists and use "cp"
3408 if it doesn't. All this made OpenSSL compilable and installable in
3412 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3413 If SEQUENCE is length is indefinite just set c->slen to the total
3414 amount of data available.
3415 [Steve Henson, reported by shige@FreeBSD.org]
3416 [This change does not apply to 0.9.7.]
3418 *) Change bctest to avoid here-documents inside command substitution
3419 (workaround for FreeBSD /bin/sh bug).
3420 For compatibility with Ultrix, avoid shell functions (introduced
3421 in the bctest version that searches along $PATH).
3424 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3425 with des_encrypt() defined on some operating systems, like Solaris
3429 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3430 On the Importance of Eliminating Errors in Cryptographic
3431 Computations, J. Cryptology 14 (2001) 2, 101-119,
3432 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3435 *) MIPS assembler BIGNUM division bug fix.
3438 *) Disabled incorrect Alpha assembler code.
3441 *) Fix PKCS#7 decode routines so they correctly update the length
3442 after reading an EOC for the EXPLICIT tag.
3444 [This change does not apply to 0.9.7.]
3446 *) Fix bug in PKCS#12 key generation routines. This was triggered
3447 if a 3DES key was generated with a 0 initial byte. Include
3448 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3449 (but broken) behaviour.
3452 *) Enhance bctest to search for a working bc along $PATH and print
3454 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3456 *) Fix memory leaks in err.c: free err_data string if necessary;
3457 don't write to the wrong index in ERR_set_error_data.
3460 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3464 *) Replace rdtsc with _emit statements for VC++ version 5.
3465 [Jeremy Cooper <jeremy@baymoo.org>]
3467 *) Make it possible to reuse SSLv2 sessions.
3470 *) In copy_email() check for >= 0 as a return value for
3471 X509_NAME_get_index_by_NID() since 0 is a valid index.
3472 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3474 *) Avoid coredump with unsupported or invalid public keys by checking if
3475 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3476 PKCS7_verify() fails with non detached data.
3479 *) Don't use getenv in library functions when run as setuid/setgid.
3480 New function OPENSSL_issetugid().
3483 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3484 due to incorrect handling of multi-threading:
3486 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3488 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3490 3. Count how many times MemCheck_off() has been called so that
3491 nested use can be treated correctly. This also avoids
3492 inband-signalling in the previous code (which relied on the
3493 assumption that thread ID 0 is impossible).
3496 *) Add "-rand" option also to s_client and s_server.
3499 *) Fix CPU detection on Irix 6.x.
3500 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3501 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3503 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3506 [This change does not apply to 0.9.7.]
3508 *) Use the cached encoding of an X509_NAME structure rather than
3509 copying it. This is apparently the reason for the libsafe "errors"
3510 but the code is actually correct.
3513 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3514 Bleichenbacher's DSA attack.
3515 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3516 to be set and top=0 forces the highest bit to be set; top=-1 is new
3517 and leaves the highest bit random.
3518 [Ulf Moeller, Bodo Moeller]
3520 *) In the NCONF_...-based implementations for CONF_... queries
3521 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3522 a temporary CONF structure with the data component set to NULL
3523 (which gives segmentation faults in lh_retrieve).
3524 Instead, use NULL for the CONF pointer in CONF_get_string and
3525 CONF_get_number (which may use environment variables) and directly
3526 return NULL from CONF_get_section.
3529 *) Fix potential buffer overrun for EBCDIC.
3532 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3533 keyUsage if basicConstraints absent for a CA.
3536 *) Make SMIME_write_PKCS7() write mail header values with a format that
3537 is more generally accepted (no spaces before the semicolon), since
3538 some programs can't parse those values properly otherwise. Also make
3539 sure BIO's that break lines after each write do not create invalid
3543 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3544 macros previously used would not encode an empty SEQUENCE OF
3545 and break the signature.
3547 [This change does not apply to 0.9.7.]
3549 *) Zero the premaster secret after deriving the master secret in
3553 *) Add some EVP_add_digest_alias registrations (as found in
3554 OpenSSL_add_all_digests()) to SSL_library_init()
3555 aka OpenSSL_add_ssl_algorithms(). This provides improved
3556 compatibility with peers using X.509 certificates
3557 with unconventional AlgorithmIdentifier OIDs.
3560 *) Fix for Irix with NO_ASM.
3561 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3563 *) ./config script fixes.
3564 [Ulf Moeller, Richard Levitte]
3566 *) Fix 'openssl passwd -1'.
3569 *) Change PKCS12_key_gen_asc() so it can cope with non null
3570 terminated strings whose length is passed in the passlen
3571 parameter, for example from PEM callbacks. This was done
3572 by adding an extra length parameter to asc2uni().
3573 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3575 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3576 call failed, free the DSA structure.
3579 *) Fix to uni2asc() to cope with zero length Unicode strings.
3580 These are present in some PKCS#12 files.
3583 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3584 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3585 when writing a 32767 byte record.
3586 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3588 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3589 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3591 (RSA objects have a reference count access to which is protected
3592 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3593 so they are meant to be shared between threads.)
3594 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3595 "Reddie, Steven" <Steven.Reddie@ca.com>]
3597 *) Fix a deadlock in CRYPTO_mem_leaks().
3600 *) Use better test patterns in bntest.
3603 *) rand_win.c fix for Borland C.
3606 *) BN_rshift bugfix for n == 0.
3609 *) Add a 'bctest' script that checks for some known 'bc' bugs
3610 so that 'make test' does not abort just because 'bc' is broken.
3613 *) Store verify_result within SSL_SESSION also for client side to
3614 avoid potential security hole. (Re-used sessions on the client side
3615 always resulted in verify_result==X509_V_OK, not using the original
3616 result of the server certificate verification.)
3619 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3620 SSL3_RT_APPLICATION_DATA, return 0.
3621 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3625 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3626 releases, have been re-implemented by renaming the previous
3627 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3628 and ssl3_read_internal, respectively, and adding 'peek' parameters
3629 to them. The new ssl[23]_{read,peek} functions are calls to
3630 ssl[23]_read_internal with the 'peek' flag set appropriately.
3631 A 'peek' parameter has also been added to ssl3_read_bytes, which
3632 does the actual work for ssl3_read_internal.
3635 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3636 the method-specific "init()" handler. Also clean up ex_data after
3637 calling the method-specific "finish()" handler. Previously, this was
3638 happening the other way round.
3641 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3642 The previous value, 12, was not always sufficient for BN_mod_exp().
3645 *) Make sure that shared libraries get the internal name engine with
3646 the full version number and not just 0. This should mark the
3647 shared libraries as not backward compatible. Of course, this should
3648 be changed again when we can guarantee backward binary compatibility.
3651 *) Fix typo in get_cert_by_subject() in by_dir.c
3652 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3654 *) Rework the system to generate shared libraries:
3656 - Make note of the expected extension for the shared libraries and
3657 if there is a need for symbolic links from for example libcrypto.so.0
3658 to libcrypto.so.0.9.7. There is extended info in Configure for
3661 - Make as few rebuilds of the shared libraries as possible.
3663 - Still avoid linking the OpenSSL programs with the shared libraries.
3665 - When installing, install the shared libraries separately from the
3669 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3671 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3672 and not in SSL_clear because the latter is also used by the
3673 accept/connect functions; previously, the settings made by
3674 SSL_set_read_ahead would be lost during the handshake.
3675 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3677 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3678 Previously, it would create entries for disableed algorithms no
3682 *) Added several new manual pages for SSL_* function.
3685 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3687 *) In ssl23_get_client_hello, generate an error message when faced
3688 with an initial SSL 3.0/TLS record that is too small to contain the
3689 first two bytes of the ClientHello message, i.e. client_version.
3690 (Note that this is a pathologic case that probably has never happened
3691 in real life.) The previous approach was to use the version number
3692 from the record header as a substitute; but our protocol choice
3693 should not depend on that one because it is not authenticated
3694 by the Finished messages.
3697 *) More robust randomness gathering functions for Windows.
3698 [Jeffrey Altman <jaltman@columbia.edu>]
3700 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3701 not set then we don't setup the error code for issuer check errors
3702 to avoid possibly overwriting other errors which the callback does
3703 handle. If an application does set the flag then we assume it knows
3704 what it is doing and can handle the new informational codes
3708 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3709 a general "ANY" type, as such it should be able to decode anything
3710 including tagged types. However it didn't check the class so it would
3711 wrongly interpret tagged types in the same way as their universal
3712 counterpart and unknown types were just rejected. Changed so that the
3713 tagged and unknown types are handled in the same way as a SEQUENCE:
3714 that is the encoding is stored intact. There is also a new type
3715 "V_ASN1_OTHER" which is used when the class is not universal, in this
3716 case we have no idea what the actual type is so we just lump them all
3720 *) On VMS, stdout may very well lead to a file that is written to
3721 in a record-oriented fashion. That means that every write() will
3722 write a separate record, which will be read separately by the
3723 programs trying to read from it. This can be very confusing.
3725 The solution is to put a BIO filter in the way that will buffer
3726 text until a linefeed is reached, and then write everything a
3727 line at a time, so every record written will be an actual line,
3728 not chunks of lines and not (usually doesn't happen, but I've
3729 seen it once) several lines in one record. BIO_f_linebuffer() is
3732 Currently, it's a VMS-only method, because that's where it has
3733 been tested well enough.
3736 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3737 it can return incorrect results.
3738 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3739 but it was in 0.9.6-beta[12].)
3742 *) Disable the check for content being present when verifying detached
3743 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3744 include zero length content when signing messages.
3747 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3748 BIO_ctrl (for BIO pairs).
3751 *) Add DSO method for VMS.
3754 *) Bug fix: Montgomery multiplication could produce results with the
3758 *) Add RPM specification openssl.spec and modify it to build three
3759 packages. The default package contains applications, application
3760 documentation and run-time libraries. The devel package contains
3761 include files, static libraries and function documentation. The
3762 doc package contains the contents of the doc directory. The original
3763 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3766 *) Add a large number of documentation files for many SSL routines.
3767 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3769 *) Add a configuration entry for Sony News 4.
3770 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3772 *) Don't set the two most significant bits to one when generating a
3773 random number < q in the DSA library.
3776 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3777 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3778 the underlying transport is blocking) if a handshake took place.
3779 (The default behaviour is needed by applications such as s_client
3780 and s_server that use select() to determine when to use SSL_read;
3781 but for applications that know in advance when to expect data, it
3782 just makes things more complicated.)
3785 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3789 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3790 work better on such systems.
3791 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3793 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3794 Update PKCS12_parse() so it copies the friendlyName and the
3795 keyid to the certificates aux info.
3798 *) Fix bug in PKCS7_verify() which caused an infinite loop
3799 if there was more than one signature.
3800 [Sven Uszpelkat <su@celocom.de>]
3802 *) Major change in util/mkdef.pl to include extra information
3803 about each symbol, as well as presentig variables as well
3804 as functions. This change means that there's n more need
3805 to rebuild the .num files when some algorithms are excluded.
3808 *) Allow the verify time to be set by an application,
3809 rather than always using the current time.
3812 *) Phase 2 verify code reorganisation. The certificate
3813 verify code now looks up an issuer certificate by a
3814 number of criteria: subject name, authority key id
3815 and key usage. It also verifies self signed certificates
3816 by the same criteria. The main comparison function is
3817 X509_check_issued() which performs these checks.
3819 Lot of changes were necessary in order to support this
3820 without completely rewriting the lookup code.
3822 Authority and subject key identifier are now cached.
3824 The LHASH 'certs' is X509_STORE has now been replaced
3825 by a STACK_OF(X509_OBJECT). This is mainly because an
3826 LHASH can't store or retrieve multiple objects with
3827 the same hash value.
3829 As a result various functions (which were all internal
3830 use only) have changed to handle the new X509_STORE
3831 structure. This will break anything that messed round
3832 with X509_STORE internally.
3834 The functions X509_STORE_add_cert() now checks for an
3835 exact match, rather than just subject name.
3837 The X509_STORE API doesn't directly support the retrieval
3838 of multiple certificates matching a given criteria, however
3839 this can be worked round by performing a lookup first
3840 (which will fill the cache with candidate certificates)
3841 and then examining the cache for matches. This is probably
3842 the best we can do without throwing out X509_LOOKUP
3843 entirely (maybe later...).
3845 The X509_VERIFY_CTX structure has been enhanced considerably.
3847 All certificate lookup operations now go via a get_issuer()
3848 callback. Although this currently uses an X509_STORE it
3849 can be replaced by custom lookups. This is a simple way
3850 to bypass the X509_STORE hackery necessary to make this
3851 work and makes it possible to use more efficient techniques
3852 in future. A very simple version which uses a simple
3853 STACK for its trusted certificate store is also provided
3854 using X509_STORE_CTX_trusted_stack().
3856 The verify_cb() and verify() callbacks now have equivalents
3857 in the X509_STORE_CTX structure.
3859 X509_STORE_CTX also has a 'flags' field which can be used
3860 to customise the verify behaviour.
3863 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3864 excludes S/MIME capabilities.
3867 *) When a certificate request is read in keep a copy of the
3868 original encoding of the signed data and use it when outputing
3869 again. Signatures then use the original encoding rather than
3870 a decoded, encoded version which may cause problems if the
3871 request is improperly encoded.
3874 *) For consistency with other BIO_puts implementations, call
3875 buffer_write(b, ...) directly in buffer_puts instead of calling
3878 In BIO_puts, increment b->num_write as in BIO_write.
3879 [Peter.Sylvester@EdelWeb.fr]
3881 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3882 BN_zero, we may not return a BIGNUM with an array consisting of
3886 *) Avoid calling abort() from within the library when problems are
3887 detected, except if preprocessor symbols have been defined
3888 (such as REF_CHECK, BN_DEBUG etc.).
3891 *) New openssl application 'rsautl'. This utility can be
3892 used for low level RSA operations. DER public key
3893 BIO/fp routines also added.
3896 *) New Configure entry and patches for compiling on QNX 4.
3897 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3899 *) A demo state-machine implementation was sponsored by
3900 Nuron (http://www.nuron.com/) and is now available in
3901 demos/state_machine.
3904 *) New options added to the 'dgst' utility for signature
3905 generation and verification.
3908 *) Unrecognized PKCS#7 content types are now handled via a
3909 catch all ASN1_TYPE structure. This allows unsupported
3910 types to be stored as a "blob" and an application can
3911 encode and decode it manually.
3914 *) Fix various signed/unsigned issues to make a_strex.c
3916 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3918 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3919 length if passed a buffer. ASN1_INTEGER_to_BN failed
3920 if passed a NULL BN and its argument was negative.
3921 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3923 *) Modification to PKCS#7 encoding routines to output definite
3924 length encoding. Since currently the whole structures are in
3925 memory there's not real point in using indefinite length
3926 constructed encoding. However if OpenSSL is compiled with
3927 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3930 *) Added BIO_vprintf() and BIO_vsnprintf().
3933 *) Added more prefixes to parse for in the the strings written
3934 through a logging bio, to cover all the levels that are available
3935 through syslog. The prefixes are now:
3937 PANIC, EMERG, EMR => LOG_EMERG
3938 ALERT, ALR => LOG_ALERT
3939 CRIT, CRI => LOG_CRIT
3940 ERROR, ERR => LOG_ERR
3941 WARNING, WARN, WAR => LOG_WARNING
3942 NOTICE, NOTE, NOT => LOG_NOTICE
3943 INFO, INF => LOG_INFO
3944 DEBUG, DBG => LOG_DEBUG
3946 and as before, if none of those prefixes are present at the
3947 beginning of the string, LOG_ERR is chosen.
3949 On Win32, the LOG_* levels are mapped according to this:
3951 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3952 LOG_WARNING => EVENTLOG_WARNING_TYPE
3953 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3957 *) Made it possible to reconfigure with just the configuration
3958 argument "reconf" or "reconfigure". The command line arguments
3959 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3960 and are retrieved from there when reconfiguring.
3964 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3966 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3969 *) The obj_dat.pl script was messing up the sorting of object
3970 names. The reason was that it compared the quoted version
3971 of strings as a result "OCSP" > "OCSP Signing" because
3972 " > SPACE. Changed script to store unquoted versions of
3973 names and add quotes on output. It was also omitting some
3974 names from the lookup table if they were given a default
3975 value (that is if SN is missing it is given the same
3976 value as LN and vice versa), these are now added on the
3977 grounds that if an object has a name we should be able to
3978 look it up. Finally added warning output when duplicate
3979 short or long names are found.
3982 *) Changes needed for Tandem NSK.
3983 [Scott Uroff <scott@xypro.com>]
3985 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3986 RSA_padding_check_SSLv23(), special padding was never detected
3987 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3988 version rollback attacks was not effective.
3990 In s23_clnt.c, don't use special rollback-attack detection padding
3991 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3992 client; similarly, in s23_srvr.c, don't do the rollback check if
3993 SSL 2.0 is the only protocol enabled in the server.
3996 *) Make it possible to get hexdumps of unprintable data with 'openssl
3997 asn1parse'. By implication, the functions ASN1_parse_dump() and
3998 BIO_dump_indent() are added.
4001 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4002 these print out strings and name structures based on various
4003 flags including RFC2253 support and proper handling of
4004 multibyte characters. Added options to the 'x509' utility
4005 to allow the various flags to be set.
4008 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4009 Also change the functions X509_cmp_current_time() and
4010 X509_gmtime_adj() work with an ASN1_TIME structure,
4011 this will enable certificates using GeneralizedTime in validity
4012 dates to be checked.
4015 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4016 negative public key encodings) on by default,
4017 NO_NEG_PUBKEY_BUG can be set to disable it.
4020 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4021 content octets. An i2c_ASN1_OBJECT is unnecessary because
4022 the encoding can be trivially obtained from the structure.
4025 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4026 not read locks (CRYPTO_r_[un]lock).
4029 *) A first attempt at creating official support for shared
4030 libraries through configuration. I've kept it so the
4031 default is static libraries only, and the OpenSSL programs
4032 are always statically linked for now, but there are
4033 preparations for dynamic linking in place.
4034 This has been tested on Linux and Tru64.
4037 *) Randomness polling function for Win9x, as described in:
4038 Peter Gutmann, Software Generation of Practically Strong
4042 *) Fix so PRNG is seeded in req if using an already existing
4046 *) New options to smime application. -inform and -outform
4047 allow alternative formats for the S/MIME message including
4048 PEM and DER. The -content option allows the content to be
4049 specified separately. This should allow things like Netscape
4050 form signing output easier to verify.
4053 *) Fix the ASN1 encoding of tags using the 'long form'.
4056 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4057 STRING types. These convert content octets to and from the
4058 underlying type. The actual tag and length octets are
4059 already assumed to have been read in and checked. These
4060 are needed because all other string types have virtually
4061 identical handling apart from the tag. By having versions
4062 of the ASN1 functions that just operate on content octets
4063 IMPLICIT tagging can be handled properly. It also allows
4064 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4065 and ASN1_INTEGER are identical apart from the tag.
4068 *) Change the handling of OID objects as follows:
4070 - New object identifiers are inserted in objects.txt, following
4071 the syntax given in objects.README.
4072 - objects.pl is used to process obj_mac.num and create a new
4074 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4077 This is currently kind of a hack, and the perl code in objects.pl
4078 isn't very elegant, but it works as I intended. The simplest way
4079 to check that it worked correctly is to look in obj_dat.h and
4080 check the array nid_objs and make sure the objects haven't moved
4081 around (this is important!). Additions are OK, as well as
4082 consistent name changes.
4085 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4088 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4089 The given file adds to whatever has already been seeded into the
4090 random pool through the RANDFILE configuration file option or
4091 environment variable, or the default random state file.
4094 *) mkstack.pl now sorts each macro group into lexical order.
4095 Previously the output order depended on the order the files
4096 appeared in the directory, resulting in needless rewriting
4100 *) Patches to make OpenSSL compile under Win32 again. Mostly
4101 work arounds for the VC++ problem that it treats func() as
4102 func(void). Also stripped out the parts of mkdef.pl that
4103 added extra typesafe functions: these no longer exist.
4106 *) Reorganisation of the stack code. The macros are now all
4107 collected in safestack.h . Each macro is defined in terms of
4108 a "stack macro" of the form SKM_<name>(type, a, b). The
4109 DEBUG_SAFESTACK is now handled in terms of function casts,
4110 this has the advantage of retaining type safety without the
4111 use of additional functions. If DEBUG_SAFESTACK is not defined
4112 then the non typesafe macros are used instead. Also modified the
4113 mkstack.pl script to handle the new form. Needs testing to see
4114 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4115 the default if no major problems. Similar behaviour for ASN1_SET_OF
4116 and PKCS12_STACK_OF.
4119 *) When some versions of IIS use the 'NET' form of private key the
4120 key derivation algorithm is different. Normally MD5(password) is
4121 used as a 128 bit RC4 key. In the modified case
4122 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4123 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4124 as the old Netscape_RSA functions except they have an additional
4125 'sgckey' parameter which uses the modified algorithm. Also added
4126 an -sgckey command line option to the rsa utility. Thanks to
4127 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4128 algorithm to openssl-dev.
4131 *) The evp_local.h macros were using 'c.##kname' which resulted in
4132 invalid expansion on some systems (SCO 5.0.5 for example).
4133 Corrected to 'c.kname'.
4134 [Phillip Porch <root@theporch.com>]
4136 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4137 a STACK of email addresses from a certificate or request, these look
4138 in the subject name and the subject alternative name extensions and
4139 omit any duplicate addresses.
4142 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4143 This makes DSA verification about 2 % faster.
4146 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4147 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4148 plus overhead for 1024 bit moduli).
4149 This makes exponentiations about 0.5 % faster for 1024 bit
4150 exponents (as measured by "openssl speed rsa2048").
4153 *) Rename memory handling macros to avoid conflicts with other
4155 Malloc => OPENSSL_malloc
4156 Malloc_locked => OPENSSL_malloc_locked
4157 Realloc => OPENSSL_realloc
4158 Free => OPENSSL_free
4161 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4162 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4165 *) CygWin32 support.
4166 [John Jarvie <jjarvie@newsguy.com>]
4168 *) The type-safe stack code has been rejigged. It is now only compiled
4169 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4170 by default all type-specific stack functions are "#define"d back to
4171 standard stack functions. This results in more streamlined output
4172 but retains the type-safety checking possibilities of the original
4176 *) The STACK code has been cleaned up, and certain type declarations
4177 that didn't make a lot of sense have been brought in line. This has
4178 also involved a cleanup of sorts in safestack.h to more correctly
4179 map type-safe stack functions onto their plain stack counterparts.
4180 This work has also resulted in a variety of "const"ifications of
4181 lots of the code, especially "_cmp" operations which should normally
4182 be prototyped with "const" parameters anyway.
4185 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4186 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4187 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4188 where all of 'md' is used each time the PRNG is used, but 'state'
4189 is used only indexed by a cyclic counter. As entropy may not be
4190 well distributed from the beginning, 'md' is important as a
4191 chaining variable. However, the output function chains only half
4192 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4193 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4194 in all of 'state' being rewritten, with the new values depending
4195 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4198 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4199 the handshake is continued after ssl_verify_cert_chain();
4200 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4201 can lead to 'unexplainable' connection aborts later.
4202 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4204 *) Major EVP API cipher revision.
4205 Add hooks for extra EVP features. This allows various cipher
4206 parameters to be set in the EVP interface. Support added for variable
4207 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4208 setting of RC2 and RC5 parameters.
4210 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4213 Remove lots of duplicated code from the EVP library. For example *every*
4214 cipher init() function handles the 'iv' in the same way according to the
4215 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4216 for CFB and OFB modes they zero ctx->num.
4218 New functionality allows removal of S/MIME code RC2 hack.
4220 Most of the routines have the same form and so can be declared in terms
4223 By shifting this to the top level EVP_CipherInit() it can be removed from
4224 all individual ciphers. If the cipher wants to handle IVs or keys
4225 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4228 Change lots of functions like EVP_EncryptUpdate() to now return a
4229 value: although software versions of the algorithms cannot fail
4230 any installed hardware versions can.
4233 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4234 this option is set, tolerate broken clients that send the negotiated
4235 protocol version number instead of the requested protocol version
4239 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4240 i.e. non-zero for export ciphersuites, zero otherwise.
4241 Previous versions had this flag inverted, inconsistent with
4242 rsa_tmp_cb (..._TMP_RSA_CB).
4243 [Bodo Moeller; problem reported by Amit Chopra]
4245 *) Add missing DSA library text string. Work around for some IIS
4246 key files with invalid SEQUENCE encoding.
4249 *) Add a document (doc/standards.txt) that list all kinds of standards
4250 and so on that are implemented in OpenSSL.
4253 *) Enhance c_rehash script. Old version would mishandle certificates
4254 with the same subject name hash and wouldn't handle CRLs at all.
4255 Added -fingerprint option to crl utility, to support new c_rehash
4259 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4262 *) Fix for SSL server purpose checking. Server checking was
4263 rejecting certificates which had extended key usage present
4264 but no ssl client purpose.
4265 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4267 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4268 is a little unclear about how a blank password is handled.
4269 Since the password in encoded as a BMPString with terminating
4270 double NULL a zero length password would end up as just the
4271 double NULL. However no password at all is different and is
4272 handled differently in the PKCS#12 key generation code. NS
4273 treats a blank password as zero length. MSIE treats it as no
4274 password on export: but it will try both on import. We now do
4275 the same: PKCS12_parse() tries zero length and no password if
4276 the password is set to "" or NULL (NULL is now a valid password:
4277 it wasn't before) as does the pkcs12 application.
4280 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4281 perror when PEM_read_bio_X509_REQ fails, the error message must
4282 be obtained from the error queue.
4285 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4286 it in ERR_remove_state if appropriate, and change ERR_get_state
4287 accordingly to avoid race conditions (this is necessary because
4288 thread_hash is no longer constant once set).
4291 *) Bugfix for linux-elf makefile.one.
4294 *) RSA_get_default_method() will now cause a default
4295 RSA_METHOD to be chosen if one doesn't exist already.
4296 Previously this was only set during a call to RSA_new()
4297 or RSA_new_method(NULL) meaning it was possible for
4298 RSA_get_default_method() to return NULL.
4301 *) Added native name translation to the existing DSO code
4302 that will convert (if the flag to do so is set) filenames
4303 that are sufficiently small and have no path information
4304 into a canonical native form. Eg. "blah" converted to
4305 "libblah.so" or "blah.dll" etc.
4308 *) New function ERR_error_string_n(e, buf, len) which is like
4309 ERR_error_string(e, buf), but writes at most 'len' bytes
4310 including the 0 terminator. For ERR_error_string_n, 'buf'
4312 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4314 *) CONF library reworked to become more general. A new CONF
4315 configuration file reader "class" is implemented as well as a
4316 new functions (NCONF_*, for "New CONF") to handle it. The now
4317 old CONF_* functions are still there, but are reimplemented to
4318 work in terms of the new functions. Also, a set of functions
4319 to handle the internal storage of the configuration data is
4320 provided to make it easier to write new configuration file
4321 reader "classes" (I can definitely see something reading a
4322 configuration file in XML format, for example), called _CONF_*,
4323 or "the configuration storage API"...
4325 The new configuration file reading functions are:
4327 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4328 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4330 NCONF_default, NCONF_WIN32
4332 NCONF_dump_fp, NCONF_dump_bio
4334 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4335 NCONF_new creates a new CONF object. This works in the same way
4336 as other interfaces in OpenSSL, like the BIO interface.
4337 NCONF_dump_* dump the internal storage of the configuration file,
4338 which is useful for debugging. All other functions take the same
4339 arguments as the old CONF_* functions wth the exception of the
4340 first that must be a `CONF *' instead of a `LHASH *'.
4342 To make it easer to use the new classes with the old CONF_* functions,
4343 the function CONF_set_default_method is provided.
4346 *) Add '-tls1' option to 'openssl ciphers', which was already
4347 mentioned in the documentation but had not been implemented.
4348 (This option is not yet really useful because even the additional
4349 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4352 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4353 OpenSSL-based applications) load shared libraries and bind to
4354 them in a portable way.
4355 [Geoff Thorpe, with contributions from Richard Levitte]
4357 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4359 *) Make sure _lrotl and _lrotr are only used with MSVC.
4361 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4362 (the default implementation of RAND_status).
4364 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4365 to '-clrext' (= clear extensions), as intended and documented.
4366 [Bodo Moeller; inconsistency pointed out by Michael Attili
4369 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4370 was larger than the MD block size.
4371 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4373 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4374 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4375 using the passed key: if the passed key was a private key the result
4376 of X509_print(), for example, would be to print out all the private key
4380 *) des_quad_cksum() byte order bug fix.
4381 [Ulf Möller, using the problem description in krb4-0.9.7, where
4382 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4384 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4386 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4388 *) For easily testing in shell scripts whether some command
4389 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4390 returns with exit code 0 iff no command of the given name is available.
4391 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4392 the output goes to stdout and nothing is printed to stderr.
4393 Additional arguments are always ignored.
4395 Since for each cipher there is a command of the same name,
4396 the 'no-cipher' compilation switches can be tested this way.
4398 ('openssl no-XXX' is not able to detect pseudo-commands such
4399 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4402 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4405 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4406 is set; it will be thrown away anyway because each handshake creates
4408 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4409 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4410 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4411 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4414 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4415 'Q' and 'R' lose their special meanings (quit/renegotiate).
4416 This is part of what -quiet does; unlike -quiet, -ign_eof
4417 does not suppress any output.
4420 *) Add compatibility options to the purpose and trust code. The
4421 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4422 accepts a certificate or CA, this was the previous behaviour,
4423 with all the associated security issues.
4425 X509_TRUST_COMPAT is the old trust behaviour: only and
4426 automatically trust self signed roots in certificate store. A
4427 new trust setting X509_TRUST_DEFAULT is used to specify that
4428 a purpose has no associated trust setting and it should instead
4429 use the value in the default purpose.
4432 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4433 and fix a memory leak.
4436 *) In util/mkerr.pl (which implements 'make errors'), preserve
4437 reason strings from the previous version of the .c file, as
4438 the default to have only downcase letters (and digits) in
4439 automatically generated reasons codes is not always appropriate.
4442 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4443 using strerror. Previously, ERR_reason_error_string() returned
4444 library names as reason strings for SYSerr; but SYSerr is a special
4445 case where small numbers are errno values, not library numbers.
4448 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4449 converts DSA parameters into DH parameters. (When creating parameters,
4450 DSA_generate_parameters is used.)
4453 *) Include 'length' (recommended exponent length) in C code generated
4454 by 'openssl dhparam -C'.
4457 *) The second argument to set_label in perlasm was already being used
4458 so couldn't be used as a "file scope" flag. Moved to third argument
4462 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4463 instead of RAND_bytes for encryption IVs and salts.
4466 *) Include RAND_status() into RAND_METHOD instead of implementing
4467 it only for md_rand.c Otherwise replacing the PRNG by calling
4468 RAND_set_rand_method would be impossible.
4471 *) Don't let DSA_generate_key() enter an infinite loop if the random
4472 number generation fails.
4475 *) New 'rand' application for creating pseudo-random output.
4478 *) Added configuration support for Linux/IA64
4479 [Rolf Haberrecker <rolf@suse.de>]
4481 *) Assembler module support for Mingw32.
4484 *) Shared library support for HPUX (in shlib/).
4485 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4487 *) Shared library support for Solaris gcc.
4488 [Lutz Behnke <behnke@trustcenter.de>]
4490 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4492 *) PKCS7_encrypt() was adding text MIME headers twice because they
4493 were added manually and by SMIME_crlf_copy().
4496 *) In bntest.c don't call BN_rand with zero bits argument.
4497 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4499 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4500 case was implemented. This caused BN_div_recp() to fail occasionally.
4503 *) Add an optional second argument to the set_label() in the perl
4504 assembly language builder. If this argument exists and is set
4505 to 1 it signals that the assembler should use a symbol whose
4506 scope is the entire file, not just the current function. This
4507 is needed with MASM which uses the format label:: for this scope.
4508 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4510 *) Change the ASN1 types so they are typedefs by default. Before
4511 almost all types were #define'd to ASN1_STRING which was causing
4512 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4516 *) Change names of new functions to the new get1/get0 naming
4517 convention: After 'get1', the caller owns a reference count
4518 and has to call ..._free; 'get0' returns a pointer to some
4519 data structure without incrementing reference counters.
4520 (Some of the existing 'get' functions increment a reference
4521 counter, some don't.)
4522 Similarly, 'set1' and 'add1' functions increase reference
4523 counters or duplicate objects.
4526 *) Allow for the possibility of temp RSA key generation failure:
4527 the code used to assume it always worked and crashed on failure.
4530 *) Fix potential buffer overrun problem in BIO_printf().
4531 [Ulf Möller, using public domain code by Patrick Powell; problem
4532 pointed out by David Sacerdote <das33@cornell.edu>]
4534 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4535 RAND_egd() and RAND_status(). In the command line application,
4536 the EGD socket can be specified like a seed file using RANDFILE
4540 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4541 Some CAs (e.g. Verisign) distribute certificates in this form.
4544 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4545 list to exclude them. This means that no special compilation option
4546 is needed to use anonymous DH: it just needs to be included in the
4550 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4551 EVP_MD_type. The old functionality is available in a new macro called
4552 EVP_MD_md(). Change code that uses it and update docs.
4555 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4556 where the 'void *' argument is replaced by a function pointer argument.
4557 Previously 'void *' was abused to point to functions, which works on
4558 many platforms, but is not correct. As these functions are usually
4559 called by macros defined in OpenSSL header files, most source code
4560 should work without changes.
4563 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4564 sections with information on -D... compiler switches used for
4565 compiling the library so that applications can see them. To enable
4566 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4567 must be defined. E.g.,
4568 #define OPENSSL_ALGORITHM_DEFINES
4569 #include <openssl/opensslconf.h>
4570 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4571 [Richard Levitte, Ulf and Bodo Möller]
4573 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4577 *) Change the 'other' type in certificate aux info to a STACK_OF
4578 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4579 the required ASN1 format: arbitrary types determined by an OID.
4582 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4583 argument to 'req'. This is not because the function is newer or
4584 better than others it just uses the work 'NEW' in the certificate
4585 request header lines. Some software needs this.
4588 *) Reorganise password command line arguments: now passwords can be
4589 obtained from various sources. Delete the PEM_cb function and make
4590 it the default behaviour: i.e. if the callback is NULL and the
4591 usrdata argument is not NULL interpret it as a null terminated pass
4592 phrase. If usrdata and the callback are NULL then the pass phrase
4593 is prompted for as usual.
4596 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4597 the support is automatically enabled. The resulting binaries will
4598 autodetect the card and use it if present.
4599 [Ben Laurie and Compaq Inc.]
4601 *) Work around for Netscape hang bug. This sends certificate request
4602 and server done in one record. Since this is perfectly legal in the
4603 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4604 the bugs/SSLv3 entry for more info.
4607 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4610 *) Add -rand argument to smime and pkcs12 applications and read/write
4614 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4617 *) Add command line password options to the remaining applications.
4620 *) Bug fix for BN_div_recp() for numerators with an even number of
4624 *) More tests in bntest.c, and changed test_bn output.
4627 *) ./config recognizes MacOS X now.
4630 *) Bug fix for BN_div() when the first words of num and divsor are
4631 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4634 *) Add support for various broken PKCS#8 formats, and command line
4635 options to produce them.
4638 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4639 get temporary BIGNUMs from a BN_CTX.
4642 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4646 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4647 include a #define from the old name to the new. The original intent
4648 was that statically linked binaries could for example just call
4649 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4650 link with digests. This never worked becayse SSLeay_add_all_digests()
4651 and SSLeay_add_all_ciphers() were in the same source file so calling
4652 one would link with the other. They are now in separate source files.
4655 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4658 *) Use a less unusual form of the Miller-Rabin primality test (it used
4659 a binary algorithm for exponentiation integrated into the Miller-Rabin
4660 loop, our standard modexp algorithms are faster).
4663 *) Support for the EBCDIC character set completed.
4664 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4666 *) Source code cleanups: use const where appropriate, eliminate casts,
4667 use void * instead of char * in lhash.
4670 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4671 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4672 this the server could overwrite ephemeral keys that the client
4676 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4677 using 50 iterations of the Rabin-Miller test.
4679 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4680 iterations of the Rabin-Miller test as required by the appendix
4681 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4682 As BN_is_prime_fasttest includes trial division, DSA parameter
4683 generation becomes much faster.
4685 This implies a change for the callback functions in DSA_is_prime
4686 and DSA_generate_parameters: The callback function is called once
4687 for each positive witness in the Rabin-Miller test, not just
4688 occasionally in the inner loop; and the parameters to the
4689 callback function now provide an iteration count for the outer
4690 loop rather than for the current invocation of the inner loop.
4691 DSA_generate_parameters additionally can call the callback
4692 function with an 'iteration count' of -1, meaning that a
4693 candidate has passed the trial division test (when q is generated
4694 from an application-provided seed, trial division is skipped).
4697 *) New function BN_is_prime_fasttest that optionally does trial
4698 division before starting the Rabin-Miller test and has
4699 an additional BN_CTX * argument (whereas BN_is_prime always
4700 has to allocate at least one BN_CTX).
4701 'callback(1, -1, cb_arg)' is called when a number has passed the
4702 trial division stage.
4705 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4709 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4712 *) New function BN_pseudo_rand().
4715 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4716 bignum version of BN_from_montgomery() with the working code from
4717 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4721 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4722 made it impossible to use the same SSL_SESSION data structure in
4723 SSL2 clients in multiple threads.
4726 *) The return value of RAND_load_file() no longer counts bytes obtained
4727 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4728 to seed the PRNG (previously an explicit byte count was required).
4729 [Ulf Möller, Bodo Möller]
4731 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4732 used (char *) instead of (void *) and had casts all over the place.
4735 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4738 *) Retain source code compatibility for BN_prime_checks macro:
4739 BN_is_prime(..., BN_prime_checks, ...) now uses
4740 BN_prime_checks_for_size to determine the appropriate number of
4741 Rabin-Miller iterations.
4744 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4745 DH_CHECK_P_NOT_SAFE_PRIME.
4746 (Check if this is true? OpenPGP calls them "strong".)
4749 *) Merge the functionality of "dh" and "gendh" programs into a new program
4750 "dhparam". The old programs are retained for now but will handle DH keys
4751 (instead of parameters) in future.
4754 *) Make the ciphers, s_server and s_client programs check the return values
4755 when a new cipher list is set.
4758 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4759 ciphers. Before when the 56bit ciphers were enabled the sorting was
4762 The syntax for the cipher sorting has been extended to support sorting by
4763 cipher-strength (using the strength_bits hard coded in the tables).
4764 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4766 Fix a bug in the cipher-command parser: when supplying a cipher command
4767 string with an "undefined" symbol (neither command nor alphanumeric
4768 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4769 an error is flagged.
4771 Due to the strength-sorting extension, the code of the
4772 ssl_create_cipher_list() function was completely rearranged. I hope that
4773 the readability was also increased :-)
4774 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4776 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4777 for the first serial number and places 2 in the serial number file. This
4778 avoids problems when the root CA is created with serial number zero and
4779 the first user certificate has the same issuer name and serial number
4783 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4784 the new code. Add documentation for this stuff.
4787 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4788 X509_*() to X509at_*() on the grounds that they don't handle X509
4789 structures and behave in an analagous way to the X509v3 functions:
4790 they shouldn't be called directly but wrapper functions should be used
4793 So we also now have some wrapper functions that call the X509at functions
4794 when passed certificate requests. (TO DO: similar things can be done with
4795 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4796 things. Some of these need some d2i or i2d and print functionality
4797 because they handle more complex structures.)
4800 *) Add missing #ifndefs that caused missing symbols when building libssl
4801 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4802 NO_RSA in ssl/s2*.c.
4803 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4805 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4806 has a return value which indicates the quality of the random data
4807 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4808 error queue. New function RAND_pseudo_bytes() generates output that is
4809 guaranteed to be unique but not unpredictable. RAND_add is like
4810 RAND_seed, but takes an extra argument for an entropy estimate
4811 (RAND_seed always assumes full entropy).
4814 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4815 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4816 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4817 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4818 false-positive rate of at most 2^-80 for random input.
4821 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4824 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4825 in the 0.9.5 release), this returns the chain
4826 from an X509_CTX structure with a dup of the stack and all
4827 the X509 reference counts upped: so the stack will exist
4828 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4831 Also make SSL_SESSION_print() print out the verify return
4835 *) Add manpage for the pkcs12 command. Also change the default
4836 behaviour so MAC iteration counts are used unless the new
4837 -nomaciter option is used. This improves file security and
4838 only older versions of MSIE (4.0 for example) need it.
4841 *) Honor the no-xxx Configure options when creating .DEF files.
4844 *) Add PKCS#10 attributes to field table: challengePassword,
4845 unstructuredName and unstructuredAddress. These are taken from
4846 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4847 international characters are used.
4849 More changes to X509_ATTRIBUTE code: allow the setting of types
4850 based on strings. Remove the 'loc' parameter when adding
4851 attributes because these will be a SET OF encoding which is sorted
4855 *) Initial changes to the 'req' utility to allow request generation
4856 automation. This will allow an application to just generate a template
4857 file containing all the field values and have req construct the
4860 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4861 used all over the place including certificate requests and PKCS#7
4862 structures. They are currently handled manually where necessary with
4863 some primitive wrappers for PKCS#7. The new functions behave in a
4864 manner analogous to the X509 extension functions: they allow
4865 attributes to be looked up by NID and added.
4867 Later something similar to the X509V3 code would be desirable to
4868 automatically handle the encoding, decoding and printing of the
4869 more complex types. The string types like challengePassword can
4870 be handled by the string table functions.
4872 Also modified the multi byte string table handling. Now there is
4873 a 'global mask' which masks out certain types. The table itself
4874 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4875 is useful when for example there is only one permissible type
4876 (as in countryName) and using the mask might result in no valid
4880 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4881 SSL_get_peer_finished to allow applications to obtain the latest
4882 Finished messages sent to the peer or expected from the peer,
4883 respectively. (SSL_get_peer_finished is usually the Finished message
4884 actually received from the peer, otherwise the protocol will be aborted.)
4886 As the Finished message are message digests of the complete handshake
4887 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4888 be used for external authentication procedures when the authentication
4889 provided by SSL/TLS is not desired or is not enough.
4892 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4893 the host supports BWX extension and if Compaq C is present on the
4894 $PATH. Just exploiting of the BWX extension results in 20-30%
4895 performance kick for some algorithms, e.g. DES and RC4 to mention
4896 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4900 *) Add support for MS "fast SGC". This is arguably a violation of the
4901 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4902 weak crypto and after checking the certificate is SGC a second one
4903 with strong crypto. MS SGC stops the first handshake after receiving
4904 the server certificate message and sends a second client hello. Since
4905 a server will typically do all the time consuming operations before
4906 expecting any further messages from the client (server key exchange
4907 is the most expensive) there is little difference between the two.
4909 To get OpenSSL to support MS SGC we have to permit a second client
4910 hello message after we have sent server done. In addition we have to
4911 reset the MAC if we do get this second client hello.
4914 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4915 if a DER encoded private key is RSA or DSA traditional format. Changed
4916 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4917 format DER encoded private key. Newer code should use PKCS#8 format which
4918 has the key type encoded in the ASN1 structure. Added DER private key
4919 support to pkcs8 application.
4922 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4923 ciphersuites has been selected (as required by the SSL 3/TLS 1
4924 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4925 is set, we interpret this as a request to violate the specification
4926 (the worst that can happen is a handshake failure, and 'correct'
4927 behaviour would result in a handshake failure anyway).
4930 *) In SSL_CTX_add_session, take into account that there might be multiple
4931 SSL_SESSION structures with the same session ID (e.g. when two threads
4932 concurrently obtain them from an external cache).
4933 The internal cache can handle only one SSL_SESSION with a given ID,
4934 so if there's a conflict, we now throw out the old one to achieve
4938 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4939 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4940 some routines that use cipher OIDs: some ciphers do not have OIDs
4941 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4945 *) Simplify the trust setting structure and code. Now we just have
4946 two sequences of OIDs for trusted and rejected settings. These will
4947 typically have values the same as the extended key usage extension
4948 and any application specific purposes.
4950 The trust checking code now has a default behaviour: it will just
4951 check for an object with the same NID as the passed id. Functions can
4952 be provided to override either the default behaviour or the behaviour
4953 for a given id. SSL client, server and email already have functions
4954 in place for compatibility: they check the NID and also return "trusted"
4955 if the certificate is self signed.
4958 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
4959 traditional format into an EVP_PKEY structure.
4962 *) Add a password callback function PEM_cb() which either prompts for
4963 a password if usr_data is NULL or otherwise assumes it is a null
4964 terminated password. Allow passwords to be passed on command line
4965 environment or config files in a few more utilities.
4968 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
4969 keys. Add some short names for PKCS#8 PBE algorithms and allow them
4970 to be specified on the command line for the pkcs8 and pkcs12 utilities.
4971 Update documentation.
4974 *) Support for ASN1 "NULL" type. This could be handled before by using
4975 ASN1_TYPE but there wasn't any function that would try to read a NULL
4976 and produce an error if it couldn't. For compatibility we also have
4977 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
4978 don't allocate anything because they don't need to.
4981 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
4983 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
4985 *) Rebuild of the memory allocation routines used by OpenSSL code and
4986 possibly others as well. The purpose is to make an interface that
4987 provide hooks so anyone can build a separate set of allocation and
4988 deallocation routines to be used by OpenSSL, for example memory
4989 pool implementations, or something else, which was previously hard
4990 since Malloc(), Realloc() and Free() were defined as macros having
4991 the values malloc, realloc and free, respectively (except for Win32
4992 compilations). The same is provided for memory debugging code.
4993 OpenSSL already comes with functionality to find memory leaks, but
4994 this gives people a chance to debug other memory problems.
4996 With these changes, a new set of functions and macros have appeared:
4998 CRYPTO_set_mem_debug_functions() [F]
4999 CRYPTO_get_mem_debug_functions() [F]
5000 CRYPTO_dbg_set_options() [F]
5001 CRYPTO_dbg_get_options() [F]
5002 CRYPTO_malloc_debug_init() [M]
5004 The memory debug functions are NULL by default, unless the library
5005 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5006 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5007 gives the standard debugging functions that come with OpenSSL) or
5008 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5009 provided by the library user) must be used. When the standard
5010 debugging functions are used, CRYPTO_dbg_set_options can be used to
5011 request additional information:
5012 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5013 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5015 Also, things like CRYPTO_set_mem_functions will always give the
5016 expected result (the new set of functions is used for allocation
5017 and deallocation) at all times, regardless of platform and compiler
5020 To finish it up, some functions that were never use in any other
5021 way than through macros have a new API and new semantic:
5024 CRYPTO_dbg_realloc()
5027 All macros of value have retained their old syntax.
5028 [Richard Levitte and Bodo Moeller]
5030 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5031 ordering of SMIMECapabilities wasn't in "strength order" and there
5032 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5036 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5037 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5038 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5040 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5041 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5042 functionality to handle multipart/signed properly) and a utility
5043 called 'smime' to call all this stuff. This is based on code I
5044 originally wrote for Celo who have kindly allowed it to be
5045 included in OpenSSL.
5048 *) Add variants des_set_key_checked and des_set_key_unchecked of
5049 des_set_key (aka des_key_sched). Global variable des_check_key
5050 decides which of these is called by des_set_key; this way
5051 des_check_key behaves as it always did, but applications and
5052 the library itself, which was buggy for des_check_key == 1,
5053 have a cleaner way to pick the version they need.
5056 *) New function PKCS12_newpass() which changes the password of a
5060 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5061 dynamic mix. In both cases the ids can be used as an index into the
5062 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5063 functions so they accept a list of the field values and the
5064 application doesn't need to directly manipulate the X509_TRUST
5068 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5072 *) Modify the way the V3 extension code looks up extensions. This now
5073 works in a similar way to the object code: we have some "standard"
5074 extensions in a static table which is searched with OBJ_bsearch()
5075 and the application can add dynamic ones if needed. The file
5076 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5077 updated whenever a new extension is added to the core code and kept
5078 in ext_nid order. There is a simple program 'tabtest.c' which checks
5079 this. New extensions are not added too often so this file can readily
5080 be maintained manually.
5082 There are two big advantages in doing things this way. The extensions
5083 can be looked up immediately and no longer need to be "added" using
5084 X509V3_add_standard_extensions(): this function now does nothing.
5085 [Side note: I get *lots* of email saying the extension code doesn't
5086 work because people forget to call this function]
5087 Also no dynamic allocation is done unless new extensions are added:
5088 so if we don't add custom extensions there is no need to call
5089 X509V3_EXT_cleanup().
5092 *) Modify enc utility's salting as follows: make salting the default. Add a
5093 magic header, so unsalted files fail gracefully instead of just decrypting
5094 to garbage. This is because not salting is a big security hole, so people
5095 should be discouraged from doing it.
5098 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5099 digest to be passed on the command line but it only used this
5100 parameter when signing a certificate. Modified so all relevant
5101 operations are affected by the digest parameter including the
5102 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5103 DSA key was used because it didn't fix the digest.
5106 *) Initial certificate chain verify code. Currently tests the untrusted
5107 certificates for consistency with the verify purpose (which is set
5108 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5110 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5111 this is because it will reject chains with invalid extensions whereas
5112 every previous version of OpenSSL and SSLeay made no checks at all.
5114 Trust code: checks the root CA for the relevant trust settings. Trust
5115 settings have an initial value consistent with the verify purpose: e.g.
5116 if the verify purpose is for SSL client use it expects the CA to be
5117 trusted for SSL client use. However the default value can be changed to
5118 permit custom trust settings: one example of this would be to only trust
5119 certificates from a specific "secure" set of CAs.
5121 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5122 which should be used for version portability: especially since the
5123 verify structure is likely to change more often now.
5125 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5126 to set them. If not set then assume SSL clients will verify SSL servers
5129 Two new options to the verify program: -untrusted allows a set of
5130 untrusted certificates to be passed in and -purpose which sets the
5131 intended purpose of the certificate. If a purpose is set then the
5132 new chain verify code is used to check extension consistency.
5135 *) Support for the authority information access extension.
5138 *) Modify RSA and DSA PEM read routines to transparently handle
5139 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5140 public keys in a format compatible with certificate
5141 SubjectPublicKeyInfo structures. Unfortunately there were already
5142 functions called *_PublicKey_* which used various odd formats so
5143 these are retained for compatibility: however the DSA variants were
5144 never in a public release so they have been deleted. Changed dsa/rsa
5145 utilities to handle the new format: note no releases ever handled public
5146 keys so we should be OK.
5148 The primary motivation for this change is to avoid the same fiasco
5149 that dogs private keys: there are several incompatible private key
5150 formats some of which are standard and some OpenSSL specific and
5151 require various evil hacks to allow partial transparent handling and
5152 even then it doesn't work with DER formats. Given the option anything
5153 other than PKCS#8 should be dumped: but the other formats have to
5154 stay in the name of compatibility.
5156 With public keys and the benefit of hindsight one standard format
5157 is used which works with EVP_PKEY, RSA or DSA structures: though
5158 it clearly returns an error if you try to read the wrong kind of key.
5160 Added a -pubkey option to the 'x509' utility to output the public key.
5161 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5162 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5163 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5164 that do the same as the EVP_PKEY_assign_*() except they up the
5165 reference count of the added key (they don't "swallow" the
5169 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5170 CRLs would fail if the file contained no certificates or no CRLs:
5171 added a new function to read in both types and return the number
5172 read: this means that if none are read it will be an error. The
5173 DER versions of the certificate and CRL reader would always fail
5174 because it isn't possible to mix certificates and CRLs in DER format
5175 without choking one or the other routine. Changed this to just read
5176 a certificate: this is the best we can do. Also modified the code
5177 in apps/verify.c to take notice of return codes: it was previously
5178 attempting to read in certificates from NULL pointers and ignoring
5179 any errors: this is one reason why the cert and CRL reader seemed
5180 to work. It doesn't check return codes from the default certificate
5181 routines: these may well fail if the certificates aren't installed.
5184 *) Code to support otherName option in GeneralName.
5187 *) First update to verify code. Change the verify utility
5188 so it warns if it is passed a self signed certificate:
5189 for consistency with the normal behaviour. X509_verify
5190 has been modified to it will now verify a self signed
5191 certificate if *exactly* the same certificate appears
5192 in the store: it was previously impossible to trust a
5193 single self signed certificate. This means that:
5194 openssl verify ss.pem
5195 now gives a warning about a self signed certificate but
5196 openssl verify -CAfile ss.pem ss.pem
5200 *) For servers, store verify_result in SSL_SESSION data structure
5201 (and add it to external session representation).
5202 This is needed when client certificate verifications fails,
5203 but an application-provided verification callback (set by
5204 SSL_CTX_set_cert_verify_callback) allows accepting the session
5205 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5206 but returns 1): When the session is reused, we have to set
5207 ssl->verify_result to the appropriate error code to avoid
5209 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5211 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5212 case in PKCS7_dataInit() where the signed PKCS7 structure
5213 didn't contain any existing data because it was being created.
5214 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5216 *) Add a salt to the key derivation routines in enc.c. This
5217 forms the first 8 bytes of the encrypted file. Also add a
5218 -S option to allow a salt to be input on the command line.
5221 *) New function X509_cmp(). Oddly enough there wasn't a function
5222 to compare two certificates. We do this by working out the SHA1
5223 hash and comparing that. X509_cmp() will be needed by the trust
5227 *) SSL_get1_session() is like SSL_get_session(), but increments
5228 the reference count in the SSL_SESSION returned.
5229 [Geoff Thorpe <geoff@eu.c2.net>]
5231 *) Fix for 'req': it was adding a null to request attributes.
5232 Also change the X509_LOOKUP and X509_INFO code to handle
5233 certificate auxiliary information.
5236 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5240 *) Add the possibility to add extra information to the memory leak
5241 detecting output, to form tracebacks, showing from where each
5242 allocation was originated: CRYPTO_push_info("constant string") adds
5243 the string plus current file name and line number to a per-thread
5244 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5245 is like calling CYRPTO_pop_info() until the stack is empty.
5246 Also updated memory leak detection code to be multi-thread-safe.
5249 *) Add options -text and -noout to pkcs7 utility and delete the
5250 encryption options which never did anything. Update docs.
5253 *) Add options to some of the utilities to allow the pass phrase
5254 to be included on either the command line (not recommended on
5255 OSes like Unix) or read from the environment. Update the
5256 manpages and fix a few bugs.
5259 *) Add a few manpages for some of the openssl commands.
5262 *) Fix the -revoke option in ca. It was freeing up memory twice,
5263 leaking and not finding already revoked certificates.
5266 *) Extensive changes to support certificate auxiliary information.
5267 This involves the use of X509_CERT_AUX structure and X509_AUX
5268 functions. An X509_AUX function such as PEM_read_X509_AUX()
5269 can still read in a certificate file in the usual way but it
5270 will also read in any additional "auxiliary information". By
5271 doing things this way a fair degree of compatibility can be
5272 retained: existing certificates can have this information added
5273 using the new 'x509' options.
5275 Current auxiliary information includes an "alias" and some trust
5276 settings. The trust settings will ultimately be used in enhanced
5277 certificate chain verification routines: currently a certificate
5278 can only be trusted if it is self signed and then it is trusted
5282 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5283 The problem was that one of the replacement routines had not been working
5284 since SSLeay releases. For now the offending routine has been replaced
5285 with non-optimised assembler. Even so, this now gives around 95%
5286 performance improvement for 1024 bit RSA signs.
5289 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5290 handling. Most clients have the effective key size in bits equal to
5291 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5292 A few however don't do this and instead use the size of the decrypted key
5293 to determine the RC2 key length and the AlgorithmIdentifier to determine
5294 the effective key length. In this case the effective key length can still
5295 be 40 bits but the key length can be 168 bits for example. This is fixed
5296 by manually forcing an RC2 key into the EVP_PKEY structure because the
5297 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5298 the key length and effective key length are equal.
5301 *) Add a bunch of functions that should simplify the creation of
5302 X509_NAME structures. Now you should be able to do:
5303 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5304 and have it automatically work out the correct field type and fill in
5305 the structures. The more adventurous can try:
5306 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5307 and it will (hopefully) work out the correct multibyte encoding.
5310 *) Change the 'req' utility to use the new field handling and multibyte
5311 copy routines. Before the DN field creation was handled in an ad hoc
5312 way in req, ca, and x509 which was rather broken and didn't support
5313 BMPStrings or UTF8Strings. Since some software doesn't implement
5314 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5315 using the dirstring_type option. See the new comment in the default
5316 openssl.cnf for more info.
5319 *) Make crypto/rand/md_rand.c more robust:
5320 - Assure unique random numbers after fork().
5321 - Make sure that concurrent threads access the global counter and
5322 md serializably so that we never lose entropy in them
5323 or use exactly the same state in multiple threads.
5324 Access to the large state is not always serializable because
5325 the additional locking could be a performance killer, and
5326 md should be large enough anyway.
5329 *) New file apps/app_rand.c with commonly needed functionality
5330 for handling the random seed file.
5332 Use the random seed file in some applications that previously did not:
5334 dsaparam -genkey (which also ignored its '-rand' option),
5337 x509 (when signing).
5338 Except on systems with /dev/urandom, it is crucial to have a random
5339 seed file at least for key creation, DSA signing, and for DH exchanges;
5340 for RSA signatures we could do without one.
5342 gendh and gendsa (unlike genrsa) used to read only the first byte
5343 of each file listed in the '-rand' option. The function as previously
5344 found in genrsa is now in app_rand.c and is used by all programs
5345 that support '-rand'.
5348 *) In RAND_write_file, use mode 0600 for creating files;
5349 don't just chmod when it may be too late.
5352 *) Report an error from X509_STORE_load_locations
5353 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5356 *) New function ASN1_mbstring_copy() this copies a string in either
5357 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5358 into an ASN1_STRING type. A mask of permissible types is passed
5359 and it chooses the "minimal" type to use or an error if not type
5363 *) Add function equivalents to the various macros in asn1.h. The old
5364 macros are retained with an M_ prefix. Code inside the library can
5365 use the M_ macros. External code (including the openssl utility)
5366 should *NOT* in order to be "shared library friendly".
5369 *) Add various functions that can check a certificate's extensions
5370 to see if it usable for various purposes such as SSL client,
5371 server or S/MIME and CAs of these types. This is currently
5372 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5373 verification. Also added a -purpose flag to x509 utility to
5374 print out all the purposes.
5377 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5381 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5382 for, obtain and decode and extension and obtain its critical flag.
5383 This allows all the necessary extension code to be handled in a
5384 single function call.
5387 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5388 platforms. See crypto/rc4/rc4_enc.c for further details.
5391 *) New -noout option to asn1parse. This causes no output to be produced
5392 its main use is when combined with -strparse and -out to extract data
5393 from a file (which may not be in ASN.1 format).
5396 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5397 when producing the local key id.
5398 [Richard Levitte <levitte@stacken.kth.se>]
5400 *) New option -dhparam in s_server. This allows a DH parameter file to be
5401 stated explicitly. If it is not stated then it tries the first server
5402 certificate file. The previous behaviour hard coded the filename
5406 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5407 a public key to be input or output. For example:
5408 openssl rsa -in key.pem -pubout -out pubkey.pem
5409 Also added necessary DSA public key functions to handle this.
5412 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5413 in the message. This was handled by allowing
5414 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5415 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5417 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5418 to the end of the strings whereas this didn't. This would cause problems
5419 if strings read with d2i_ASN1_bytes() were later modified.
5420 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5422 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5423 data and it contains EOF it will end up returning an error. This is
5424 caused by input 46 bytes long. The cause is due to the way base64
5425 BIOs find the start of base64 encoded data. They do this by trying a
5426 trial decode on each line until they find one that works. When they
5427 do a flag is set and it starts again knowing it can pass all the
5428 data directly through the decoder. Unfortunately it doesn't reset
5429 the context it uses. This means that if EOF is reached an attempt
5430 is made to pass two EOFs through the context and this causes the
5431 resulting error. This can also cause other problems as well. As is
5432 usual with these problems it takes *ages* to find and the fix is
5433 trivial: move one line.
5434 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5436 *) Ugly workaround to get s_client and s_server working under Windows. The
5437 old code wouldn't work because it needed to select() on sockets and the
5438 tty (for keypresses and to see if data could be written). Win32 only
5439 supports select() on sockets so we select() with a 1s timeout on the
5440 sockets and then see if any characters are waiting to be read, if none
5441 are present then we retry, we also assume we can always write data to
5442 the tty. This isn't nice because the code then blocks until we've
5443 received a complete line of data and it is effectively polling the
5444 keyboard at 1s intervals: however it's quite a bit better than not
5445 working at all :-) A dedicated Windows application might handle this
5446 with an event loop for example.
5449 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5450 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5451 will be called when RSA_sign() and RSA_verify() are used. This is useful
5452 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5453 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5454 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5455 This necessitated the support of an extra signature type NID_md5_sha1
5456 for SSL signatures and modifications to the SSL library to use it instead
5457 of calling RSA_public_decrypt() and RSA_private_encrypt().
5460 *) Add new -verify -CAfile and -CApath options to the crl program, these
5461 will lookup a CRL issuers certificate and verify the signature in a
5462 similar way to the verify program. Tidy up the crl program so it
5463 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5464 less strict. It will now permit CRL extensions even if it is not
5465 a V2 CRL: this will allow it to tolerate some broken CRLs.
5468 *) Initialize all non-automatic variables each time one of the openssl
5469 sub-programs is started (this is necessary as they may be started
5470 multiple times from the "OpenSSL>" prompt).
5471 [Lennart Bang, Bodo Moeller]
5473 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5474 removing all other RSA functionality (this is what NO_RSA does). This
5475 is so (for example) those in the US can disable those operations covered
5476 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5480 *) Non-copying interface to BIO pairs.
5481 (still largely untested)
5484 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5485 ASCII string. This was handled independently in various places before.
5488 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5489 UTF8 strings a character at a time.
5492 *) Use client_version from client hello to select the protocol
5493 (s23_srvr.c) and for RSA client key exchange verification
5494 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5497 *) Add various utility functions to handle SPKACs, these were previously
5498 handled by poking round in the structure internals. Added new function
5499 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5500 print, verify and generate SPKACs. Based on an original idea from
5501 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5504 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5507 *) Allow the config file extension section to be overwritten on the
5508 command line. Based on an original idea from Massimiliano Pala
5509 <madwolf@comune.modena.it>. The new option is called -extensions
5510 and can be applied to ca, req and x509. Also -reqexts to override
5511 the request extensions in req and -crlexts to override the crl extensions
5515 *) Add new feature to the SPKAC handling in ca. Now you can include
5516 the same field multiple times by preceding it by "XXXX." for example:
5519 this is the same syntax as used in the req config file.
5522 *) Allow certificate extensions to be added to certificate requests. These
5523 are specified in a 'req_extensions' option of the req section of the
5524 config file. They can be printed out with the -text option to req but
5525 are otherwise ignored at present.
5528 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5529 data read consists of only the final block it would not decrypted because
5530 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5531 A misplaced 'break' also meant the decrypted final block might not be
5532 copied until the next read.
5535 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5536 a few extra parameters to the DH structure: these will be useful if
5537 for example we want the value of 'q' or implement X9.42 DH.
5540 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5541 provides hooks that allow the default DSA functions or functions on a
5542 "per key" basis to be replaced. This allows hardware acceleration and
5543 hardware key storage to be handled without major modification to the
5544 library. Also added low level modexp hooks and CRYPTO_EX structure and
5545 associated functions.
5548 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5549 as "read only": it can't be written to and the buffer it points to will
5550 not be freed. Reading from a read only BIO is much more efficient than
5551 a normal memory BIO. This was added because there are several times when
5552 an area of memory needs to be read from a BIO. The previous method was
5553 to create a memory BIO and write the data to it, this results in two
5554 copies of the data and an O(n^2) reading algorithm. There is a new
5555 function BIO_new_mem_buf() which creates a read only memory BIO from
5556 an area of memory. Also modified the PKCS#7 routines to use read only
5560 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5561 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5562 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5563 but a retry condition occured while trying to read the rest.
5566 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5567 NID_pkcs7_encrypted by default: this was wrong since this should almost
5568 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5569 the encrypted data type: this is a more sensible place to put it and it
5570 allows the PKCS#12 code to be tidied up that duplicated this
5574 *) Changed obj_dat.pl script so it takes its input and output files on
5575 the command line. This should avoid shell escape redirection problems
5579 *) Initial support for certificate extension requests, these are included
5580 in things like Xenroll certificate requests. Included functions to allow
5581 extensions to be obtained and added.
5584 *) -crlf option to s_client and s_server for sending newlines as
5585 CRLF (as required by many protocols).
5588 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5590 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5591 [Ralf S. Engelschall]
5593 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5594 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5596 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5600 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5601 DH parameters/keys (q is lost during that conversion, but the resulting
5602 DH parameters contain its length).
5604 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5605 much faster than DH_generate_parameters (which creates parameters
5606 where p = 2*q + 1), and also the smaller q makes DH computations
5607 much more efficient (160-bit exponentiation instead of 1024-bit
5608 exponentiation); so this provides a convenient way to support DHE
5609 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5610 utter importance to use
5611 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5613 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5614 when such DH parameters are used, because otherwise small subgroup
5615 attacks may become possible!
5618 *) Avoid memory leak in i2d_DHparams.
5621 *) Allow the -k option to be used more than once in the enc program:
5622 this allows the same encrypted message to be read by multiple recipients.
5625 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5626 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5627 it will always use the numerical form of the OID, even if it has a short
5631 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5632 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5633 otherwise bn_mod_exp was called. In the case of hardware keys for example
5634 no private key components need be present and it might store extra data
5635 in the RSA structure, which cannot be accessed from bn_mod_exp.
5636 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5637 private key operations.
5640 *) Added support for SPARC Linux.
5643 *) pem_password_cb function type incompatibly changed from
5644 typedef int pem_password_cb(char *buf, int size, int rwflag);
5646 ....(char *buf, int size, int rwflag, void *userdata);
5647 so that applications can pass data to their callbacks:
5648 The PEM[_ASN1]_{read,write}... functions and macros now take an
5649 additional void * argument, which is just handed through whenever
5650 the password callback is called.
5651 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5653 New function SSL_CTX_set_default_passwd_cb_userdata.
5655 Compatibility note: As many C implementations push function arguments
5656 onto the stack in reverse order, the new library version is likely to
5657 interoperate with programs that have been compiled with the old
5658 pem_password_cb definition (PEM_whatever takes some data that
5659 happens to be on the stack as its last argument, and the callback
5660 just ignores this garbage); but there is no guarantee whatsoever that
5663 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5664 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5665 problems not only on Windows, but also on some Unix platforms.
5666 To avoid problematic command lines, these definitions are now in an
5667 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5668 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5671 *) MIPS III/IV assembler module is reimplemented.
5674 *) More DES library cleanups: remove references to srand/rand and
5675 delete an unused file.
5678 *) Add support for the the free Netwide assembler (NASM) under Win32,
5679 since not many people have MASM (ml) and it can be hard to obtain.
5680 This is currently experimental but it seems to work OK and pass all
5681 the tests. Check out INSTALL.W32 for info.
5684 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5685 without temporary keys kept an extra copy of the server key,
5686 and connections with temporary keys did not free everything in case
5690 *) New function RSA_check_key and new openssl rsa option -check
5691 for verifying the consistency of RSA keys.
5692 [Ulf Moeller, Bodo Moeller]
5694 *) Various changes to make Win32 compile work:
5695 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5696 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5697 comparison" warnings.
5698 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5701 *) Add a debugging option to PKCS#5 v2 key generation function: when
5702 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5703 derived keys are printed to stderr.
5706 *) Copy the flags in ASN1_STRING_dup().
5707 [Roman E. Pavlov <pre@mo.msk.ru>]
5709 *) The x509 application mishandled signing requests containing DSA
5710 keys when the signing key was also DSA and the parameters didn't match.
5712 It was supposed to omit the parameters when they matched the signing key:
5713 the verifying software was then supposed to automatically use the CA's
5714 parameters if they were absent from the end user certificate.
5716 Omitting parameters is no longer recommended. The test was also
5717 the wrong way round! This was probably due to unusual behaviour in
5718 EVP_cmp_parameters() which returns 1 if the parameters match.
5719 This meant that parameters were omitted when they *didn't* match and
5720 the certificate was useless. Certificates signed with 'ca' didn't have
5722 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5724 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5725 The interface is as follows:
5726 Applications can use
5727 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5728 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5729 "off" is now the default.
5730 The library internally uses
5731 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5732 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5733 to disable memory-checking temporarily.
5735 Some inconsistent states that previously were possible (and were
5736 even the default) are now avoided.
5738 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5739 with each memory chunk allocated; this is occasionally more helpful
5740 than just having a counter.
5742 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5744 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5748 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5749 which largely parallels "options", but is for changing API behaviour,
5750 whereas "options" are about protocol behaviour.
5751 Initial "mode" flags are:
5753 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5754 a single record has been written.
5755 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5756 retries use the same buffer location.
5757 (But all of the contents must be
5761 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5764 *) Fix problems with no-hmac etc.
5765 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5767 *) New functions RSA_get_default_method(), RSA_set_method() and
5768 RSA_get_method(). These allows replacement of RSA_METHODs without having
5769 to mess around with the internals of an RSA structure.
5772 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5773 Also really enable memory leak checks in openssl.c and in some
5775 [Chad C. Mulligan, Bodo Moeller]
5777 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5778 up the length of negative integers. This has now been simplified to just
5779 store the length when it is first determined and use it later, rather
5780 than trying to keep track of where data is copied and updating it to
5782 [Steve Henson, reported by Brien Wheeler
5783 <bwheeler@authentica-security.com>]
5785 *) Add a new function PKCS7_signatureVerify. This allows the verification
5786 of a PKCS#7 signature but with the signing certificate passed to the
5787 function itself. This contrasts with PKCS7_dataVerify which assumes the
5788 certificate is present in the PKCS#7 structure. This isn't always the
5789 case: certificates can be omitted from a PKCS#7 structure and be
5790 distributed by "out of band" means (such as a certificate database).
5793 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5794 function prototypes in pem.h, also change util/mkdef.pl to add the
5795 necessary function names.
5798 *) mk1mf.pl (used by Windows builds) did not properly read the
5799 options set by Configure in the top level Makefile, and Configure
5800 was not even able to write more than one option correctly.
5801 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5804 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5805 file to be loaded from a BIO or FILE pointer. The BIO version will
5806 for example allow memory BIOs to contain config info.
5809 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5810 Whoever hopes to achieve shared-library compatibility across versions
5811 must use this, not the compile-time macro.
5812 (Exercise 0.9.4: Which is the minimum library version required by
5814 Note: All this applies only to multi-threaded programs, others don't
5818 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5819 through a BIO pair triggered the default case, i.e.
5820 SSLerr(...,SSL_R_UNKNOWN_STATE).
5823 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5824 can use the SSL library even if none of the specific BIOs is
5828 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5829 for the encoded length.
5830 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5832 *) Add initial documentation of the X509V3 functions.
5835 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5836 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5837 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5838 secure PKCS#8 private key format with a high iteration count.
5841 *) Fix determination of Perl interpreter: A perl or perl5
5842 _directory_ in $PATH was also accepted as the interpreter.
5843 [Ralf S. Engelschall]
5845 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5846 wrong with it but it was very old and did things like calling
5847 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5851 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5852 to use the new extension code.
5855 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5856 with macros. This should make it easier to change their form, add extra
5857 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5861 *) Add to configuration table a new entry that can specify an alternative
5862 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5863 according to Mark Crispin <MRC@Panda.COM>.
5867 *) DES CBC did not update the IV. Weird.
5870 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5871 Changing the behaviour of the former might break existing programs --
5872 where IV updating is needed, des_ncbc_encrypt can be used.
5875 *) When bntest is run from "make test" it drives bc to check its
5876 calculations, as well as internally checking them. If an internal check
5877 fails, it needs to cause bc to give a non-zero result or make test carries
5878 on without noticing the failure. Fixed.
5881 *) DES library cleanups.
5884 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5885 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5886 ciphers. NOTE: although the key derivation function has been verified
5887 against some published test vectors it has not been extensively tested
5888 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5892 *) Instead of "mkdir -p", which is not fully portable, use new
5893 Perl script "util/mkdir-p.pl".
5896 *) Rewrite the way password based encryption (PBE) is handled. It used to
5897 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5898 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5899 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5900 the 'parameter' field of the AlgorithmIdentifier is passed to the
5901 underlying key generation function so it must do its own ASN1 parsing.
5902 This has also changed the EVP_PBE_CipherInit() function which now has a
5903 'parameter' argument instead of literal salt and iteration count values
5904 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5907 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5908 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5909 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5910 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5911 value was just used as a "magic string" and not used directly its
5912 value doesn't matter.
5915 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5919 *) "linux-sparc64" configuration (ultrapenguin).
5920 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5921 "linux-sparc" configuration.
5922 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5924 *) config now generates no-xxx options for missing ciphers.
5927 *) Support the EBCDIC character set (work in progress).
5928 File ebcdic.c not yet included because it has a different license.
5929 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5931 *) Support BS2000/OSD-POSIX.
5932 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5934 *) Make callbacks for key generation use void * instead of char *.
5937 *) Make S/MIME samples compile (not yet tested).
5940 *) Additional typesafe stacks.
5943 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5947 Changes between 0.9.3 and 0.9.3a [29 May 1999]
5949 *) New configuration variant "sco5-gcc".
5951 *) Updated some demos.
5952 [Sean O Riordain, Wade Scholine]
5954 *) Add missing BIO_free at exit of pkcs12 application.
5957 *) Fix memory leak in conf.c.
5960 *) Updates for Win32 to assembler version of MD5.
5963 *) Set #! path to perl in apps/der_chop to where we found it
5964 instead of using a fixed path.
5967 *) SHA library changes for irix64-mips4-cc.
5970 *) Improvements for VMS support.
5974 Changes between 0.9.2b and 0.9.3 [24 May 1999]
5976 *) Bignum library bug fix. IRIX 6 passes "make test" now!
5977 This also avoids the problems with SC4.2 and unpatched SC5.
5978 [Andy Polyakov <appro@fy.chalmers.se>]
5980 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
5981 These are required because of the typesafe stack would otherwise break
5982 existing code. If old code used a structure member which used to be STACK
5983 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
5984 sk_num or sk_value it would produce an error because the num, data members
5985 are not present in STACK_OF. Now it just produces a warning. sk_set
5986 replaces the old method of assigning a value to sk_value
5987 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
5988 that does this will no longer work (and should use sk_set instead) but
5989 this could be regarded as a "questionable" behaviour anyway.
5992 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
5993 correctly handle encrypted S/MIME data.
5996 *) Change type of various DES function arguments from des_cblock
5997 (which means, in function argument declarations, pointer to char)
5998 to des_cblock * (meaning pointer to array with 8 char elements),
5999 which allows the compiler to do more typechecking; it was like
6000 that back in SSLeay, but with lots of ugly casts.
6002 Introduce new type const_des_cblock.
6005 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6006 problems: find RecipientInfo structure that matches recipient certificate
6007 and initialise the ASN1 structures properly based on passed cipher.
6010 *) Belatedly make the BN tests actually check the results.
6013 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6014 to and from BNs: it was completely broken. New compilation option
6015 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6016 key elements as negative integers.
6019 *) Reorganize and speed up MD5.
6020 [Andy Polyakov <appro@fy.chalmers.se>]
6023 [Richard Levitte <richard@levitte.org>]
6025 *) New option -out to asn1parse to allow the parsed structure to be
6026 output to a file. This is most useful when combined with the -strparse
6027 option to examine the output of things like OCTET STRINGS.
6030 *) Make SSL library a little more fool-proof by not requiring any longer
6031 that SSL_set_{accept,connect}_state be called before
6032 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6033 in many applications because usually everything *appeared* to work as
6034 intended anyway -- now it really works as intended).
6037 *) Move openssl.cnf out of lib/.
6040 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6041 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6042 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6043 [Ralf S. Engelschall]
6045 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6046 handle PKCS#7 enveloped data properly.
6047 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6049 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6050 copying pointers. The cert_st handling is changed by this in
6051 various ways (and thus what used to be known as ctx->default_cert
6052 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6053 any longer when s->cert does not give us what we need).
6054 ssl_cert_instantiate becomes obsolete by this change.
6055 As soon as we've got the new code right (possibly it already is?),
6056 we have solved a couple of bugs of the earlier code where s->cert
6057 was used as if it could not have been shared with other SSL structures.
6059 Note that using the SSL API in certain dirty ways now will result
6060 in different behaviour than observed with earlier library versions:
6061 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6062 does not influence s as it used to.
6064 In order to clean up things more thoroughly, inside SSL_SESSION
6065 we don't use CERT any longer, but a new structure SESS_CERT
6066 that holds per-session data (if available); currently, this is
6067 the peer's certificate chain and, for clients, the server's certificate
6068 and temporary key. CERT holds only those values that can have
6069 meaningful defaults in an SSL_CTX.
6072 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6073 from the internal representation. Various PKCS#7 fixes: remove some
6074 evil casts and set the enc_dig_alg field properly based on the signing
6078 *) Allow PKCS#12 password to be set from the command line or the
6079 environment. Let 'ca' get its config file name from the environment
6080 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6084 *) Allow certificate policies extension to use an IA5STRING for the
6085 organization field. This is contrary to the PKIX definition but
6086 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6090 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6091 without disallowing inline assembler and the like for non-pedantic builds.
6094 *) Support Borland C++ builder.
6095 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6100 *) SHA-1 cleanups and performance enhancements.
6101 [Andy Polyakov <appro@fy.chalmers.se>]
6103 *) Sparc v8plus assembler for the bignum library.
6104 [Andy Polyakov <appro@fy.chalmers.se>]
6106 *) Accept any -xxx and +xxx compiler options in Configure.
6109 *) Update HPUX configuration.
6112 *) Add missing sk_<type>_unshift() function to safestack.h
6113 [Ralf S. Engelschall]
6115 *) New function SSL_CTX_use_certificate_chain_file that sets the
6116 "extra_cert"s in addition to the certificate. (This makes sense
6117 only for "PEM" format files, as chains as a whole are not
6121 *) Support verify_depth from the SSL API.
6122 x509_vfy.c had what can be considered an off-by-one-error:
6123 Its depth (which was not part of the external interface)
6124 was actually counting the number of certificates in a chain;
6125 now it really counts the depth.
6128 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6129 instead of X509err, which often resulted in confusing error
6130 messages since the error codes are not globally unique
6131 (e.g. an alleged error in ssl3_accept when a certificate
6132 didn't match the private key).
6134 *) New function SSL_CTX_set_session_id_context that allows to set a default
6135 value (so that you don't need SSL_set_session_id_context for each
6136 connection using the SSL_CTX).
6139 *) OAEP decoding bug fix.
6142 *) Support INSTALL_PREFIX for package builders, as proposed by
6146 *) New Configure options "threads" and "no-threads". For systems
6147 where the proper compiler options are known (currently Solaris
6148 and Linux), "threads" is the default.
6151 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6154 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6155 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6156 such as /usr/local/bin.
6159 *) "make linux-shared" to build shared libraries.
6160 [Niels Poppe <niels@netbox.org>]
6162 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6165 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6166 extension adding in x509 utility.
6169 *) Remove NOPROTO sections and error code comments.
6172 *) Partial rewrite of the DEF file generator to now parse the ANSI
6176 *) New Configure options --prefix=DIR and --openssldir=DIR.
6179 *) Complete rewrite of the error code script(s). It is all now handled
6180 by one script at the top level which handles error code gathering,
6181 header rewriting and C source file generation. It should be much better
6182 than the old method: it now uses a modified version of Ulf's parser to
6183 read the ANSI prototypes in all header files (thus the old K&R definitions
6184 aren't needed for error creation any more) and do a better job of
6185 translating function codes into names. The old 'ASN1 error code imbedded
6186 in a comment' is no longer necessary and it doesn't use .err files which
6187 have now been deleted. Also the error code call doesn't have to appear all
6188 on one line (which resulted in some large lines...).
6191 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6194 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6195 0 (which usually indicates a closed connection), but continue reading.
6198 *) Fix some race conditions.
6201 *) Add support for CRL distribution points extension. Add Certificate
6202 Policies and CRL distribution points documentation.
6205 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6208 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6209 8 of keying material. Merlin has also confirmed interop with this fix
6210 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6211 [Merlin Hughes <merlin@baltimore.ie>]
6213 *) Fix lots of warnings.
6214 [Richard Levitte <levitte@stacken.kth.se>]
6216 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6217 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6218 [Richard Levitte <levitte@stacken.kth.se>]
6220 *) Fix problems with sizeof(long) == 8.
6221 [Andy Polyakov <appro@fy.chalmers.se>]
6223 *) Change functions to ANSI C.
6226 *) Fix typos in error codes.
6227 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6229 *) Remove defunct assembler files from Configure.
6232 *) SPARC v8 assembler BIGNUM implementation.
6233 [Andy Polyakov <appro@fy.chalmers.se>]
6235 *) Support for Certificate Policies extension: both print and set.
6236 Various additions to support the r2i method this uses.
6239 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6240 return a const string when you are expecting an allocated buffer.
6243 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6244 types DirectoryString and DisplayText.
6247 *) Add code to allow r2i extensions to access the configuration database,
6248 add an LHASH database driver and add several ctx helper functions.
6251 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6252 fail when they extended the size of a BIGNUM.
6255 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6256 support typesafe stack.
6259 *) Fix typo in SSL_[gs]et_options().
6260 [Nils Frostberg <nils@medcom.se>]
6262 *) Delete various functions and files that belonged to the (now obsolete)
6263 old X509V3 handling code.
6266 *) New Configure option "rsaref".
6269 *) Don't auto-generate pem.h.
6272 *) Introduce type-safe ASN.1 SETs.
6275 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6276 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6278 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6279 that links with OpenSSL (well at least cause lots of warnings), but fear
6280 not: the conversion is trivial, and it eliminates loads of evil casts. A
6281 few STACKed things have been converted already. Feel free to convert more.
6282 In the fullness of time, I'll do away with the STACK type altogether.
6285 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6286 specified in <certfile> by updating the entry in the index.txt file.
6287 This way one no longer has to edit the index.txt file manually for
6288 revoking a certificate. The -revoke option does the gory details now.
6289 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6291 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6292 `-text' option at all and this way the `-noout -text' combination was
6293 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6294 [Ralf S. Engelschall]
6296 *) Make sure a corresponding plain text error message exists for the
6297 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6298 verify callback function determined that a certificate was revoked.
6299 [Ralf S. Engelschall]
6301 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6302 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6303 all available cipers including rc5, which was forgotten until now.
6304 In order to let the testing shell script know which algorithms
6305 are available, a new (up to now undocumented) command
6306 "openssl list-cipher-commands" is used.
6309 *) Bugfix: s_client occasionally would sleep in select() when
6310 it should have checked SSL_pending() first.
6313 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6314 the raw DSA values prior to ASN.1 encoding.
6317 *) Tweaks to Configure
6318 [Niels Poppe <niels@netbox.org>]
6320 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6324 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6327 *) New config option to avoid instructions that are illegal on the 80386.
6328 The default code is faster, but requires at least a 486.
6331 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6332 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6333 same as SSL2_VERSION anyway.
6336 *) New "-showcerts" option for s_client.
6339 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6340 application. Various cleanups and fixes.
6343 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6344 modify error routines to work internally. Add error codes and PBE init
6345 to library startup routines.
6348 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6349 packing functions to asn1 and evp. Changed function names and error
6350 codes along the way.
6353 *) PKCS12 integration: and so it begins... First of several patches to
6354 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6355 objects to objects.h
6358 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6359 and display support for Thawte strong extranet extension.
6362 *) Add LinuxPPC support.
6363 [Jeff Dubrule <igor@pobox.org>]
6365 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6366 bn_div_words in alpha.s.
6367 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6369 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6370 OAEP isn't supported when OpenSSL is built with RSAref.
6371 [Ulf Moeller <ulf@fitug.de>]
6373 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6374 so they no longer are missing under -DNOPROTO.
6375 [Soren S. Jorvang <soren@t.dk>]
6378 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6380 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6381 doesn't work when the session is reused. Coming soon!
6384 *) Fix a security hole, that allows sessions to be reused in the wrong
6385 context thus bypassing client cert protection! All software that uses
6386 client certs and session caches in multiple contexts NEEDS PATCHING to
6387 allow session reuse! A fuller solution is in the works.
6388 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6390 *) Some more source tree cleanups (removed obsolete files
6391 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6392 permission on "config" script to be executable) and a fix for the INSTALL
6394 [Ulf Moeller <ulf@fitug.de>]
6396 *) Remove some legacy and erroneous uses of malloc, free instead of
6398 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6400 *) Make rsa_oaep_test return non-zero on error.
6401 [Ulf Moeller <ulf@fitug.de>]
6403 *) Add support for native Solaris shared libraries. Configure
6404 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6405 if someone would make that last step automatic.
6406 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6408 *) ctx_size was not built with the right compiler during "make links". Fixed.
6411 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6412 except NULL ciphers". This means the default cipher list will no longer
6413 enable NULL ciphers. They need to be specifically enabled e.g. with
6414 the string "DEFAULT:eNULL".
6417 *) Fix to RSA private encryption routines: if p < q then it would
6418 occasionally produce an invalid result. This will only happen with
6419 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6422 *) Be less restrictive and allow also `perl util/perlpath.pl
6423 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6424 because this way one can also use an interpreter named `perl5' (which is
6425 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6426 installed as `perl').
6427 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6429 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6430 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6432 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6433 advapi32.lib to Win32 build and change the pem test comparision
6434 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6435 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6436 and crypto/des/ede_cbcm_enc.c.
6439 *) DES quad checksum was broken on big-endian architectures. Fixed.
6442 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6443 Win32 test batch file so it (might) work again. The Win32 test batch file
6444 is horrible: I feel ill....
6447 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6448 in e_os.h. Audit of header files to check ANSI and non ANSI
6449 sections: 10 functions were absent from non ANSI section and not exported
6450 from Windows DLLs. Fixed up libeay.num for new functions.
6453 *) Make `openssl version' output lines consistent.
6454 [Ralf S. Engelschall]
6456 *) Fix Win32 symbol export lists for BIO functions: Added
6457 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6458 to ms/libeay{16,32}.def.
6459 [Ralf S. Engelschall]
6461 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6462 fine under Unix and passes some trivial tests I've now added. But the
6463 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6464 added to make sure no one expects that this stuff really works in the
6465 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6466 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6468 [Ralf S. Engelschall]
6470 *) Fix the generation of two part addresses in perl.
6471 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6473 *) Add config entry for Linux on MIPS.
6474 [John Tobey <jtobey@channel1.com>]
6476 *) Make links whenever Configure is run, unless we are on Windoze.
6479 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6480 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6484 *) Add a useful kludge to allow package maintainers to specify compiler and
6485 other platforms details on the command line without having to patch the
6486 Configure script everytime: One now can use ``perl Configure
6487 <id>:<details>'', i.e. platform ids are allowed to have details appended
6488 to them (seperated by colons). This is treated as there would be a static
6489 pre-configured entry in Configure's %table under key <id> with value
6490 <details> and ``perl Configure <id>'' is called. So, when you want to
6491 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6492 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6493 now, which overrides the FreeBSD-elf entry on-the-fly.
6494 [Ralf S. Engelschall]
6496 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6499 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6500 on the `perl Configure ...' command line. This way one can compile
6501 OpenSSL libraries with Position Independent Code (PIC) which is needed
6502 for linking it into DSOs.
6503 [Ralf S. Engelschall]
6505 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6509 *) Cleaned up the LICENSE document: The official contact for any license
6510 questions now is the OpenSSL core team under openssl-core@openssl.org.
6511 And add a paragraph about the dual-license situation to make sure people
6512 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6513 to the OpenSSL toolkit.
6514 [Ralf S. Engelschall]
6516 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6517 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6518 Additonally cleaned up the `make links' target: Remove unnecessary
6519 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6520 to speed processing and no longer clutter the display with confusing
6521 stuff. Instead only the actually done links are displayed.
6522 [Ralf S. Engelschall]
6524 *) Permit null encryption ciphersuites, used for authentication only. It used
6525 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6526 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6530 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6531 signed attributes when verifying signatures (this would break them),
6532 the detached data encoding was wrong and public keys obtained using
6533 X509_get_pubkey() weren't freed.
6536 *) Add text documentation for the BUFFER functions. Also added a work around
6537 to a Win95 console bug. This was triggered by the password read stuff: the
6538 last character typed gets carried over to the next fread(). If you were
6539 generating a new cert request using 'req' for example then the last
6540 character of the passphrase would be CR which would then enter the first
6544 *) Added the new `Includes OpenSSL Cryptography Software' button as
6545 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6546 button and can be used by applications based on OpenSSL to show the
6547 relationship to the OpenSSL project.
6548 [Ralf S. Engelschall]
6550 *) Remove confusing variables in function signatures in files
6551 ssl/ssl_lib.c and ssl/ssl.h.
6552 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6554 *) Don't install bss_file.c under PREFIX/include/
6555 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6557 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6558 functions that return function pointers and has support for NT specific
6559 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6560 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6561 unsigned to signed types: this was killing the Win32 compile.
6564 *) Add new certificate file to stack functions,
6565 SSL_add_dir_cert_subjects_to_stack() and
6566 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6567 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6568 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6569 This means that Apache-SSL and similar packages don't have to mess around
6570 to add as many CAs as they want to the preferred list.
6573 *) Experiment with doxygen documentation. Currently only partially applied to
6575 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6576 openssl.doxy as the configuration file.
6579 *) Get rid of remaining C++-style comments which strict C compilers hate.
6580 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6582 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6583 compiled in by default: it has problems with large keys.
6586 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6587 DH private keys and/or callback functions which directly correspond to
6588 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6589 is needed for applications which have to configure certificates on a
6590 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6592 For the RSA certificate situation is makes no difference, but
6593 for the DSA certificate situation this fixes the "no shared cipher"
6594 problem where the OpenSSL cipher selection procedure failed because the
6595 temporary keys were not overtaken from the context and the API provided
6596 no way to reconfigure them.
6597 The new functions now let applications reconfigure the stuff and they
6598 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6599 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6600 non-public-API function ssl_cert_instantiate() is used as a helper
6601 function and also to reduce code redundancy inside ssl_rsa.c.
6602 [Ralf S. Engelschall]
6604 *) Move s_server -dcert and -dkey options out of the undocumented feature
6605 area because they are useful for the DSA situation and should be
6606 recognized by the users.
6607 [Ralf S. Engelschall]
6609 *) Fix the cipher decision scheme for export ciphers: the export bits are
6610 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6611 SSL_EXP_MASK. So, the original variable has to be used instead of the
6612 already masked variable.
6613 [Richard Levitte <levitte@stacken.kth.se>]
6615 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6616 [Richard Levitte <levitte@stacken.kth.se>]
6618 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6619 from `int' to `unsigned int' because it's a length and initialized by
6620 EVP_DigestFinal() which expects an `unsigned int *'.
6621 [Richard Levitte <levitte@stacken.kth.se>]
6623 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6624 script. Instead use the usual Shell->Perl transition trick.
6625 [Ralf S. Engelschall]
6627 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6628 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6629 -noout -modulus' as it's already the case for `openssl rsa -noout
6630 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6631 currently the public key is printed (a decision which was already done by
6632 `openssl dsa -modulus' in the past) which serves a similar purpose.
6633 Additionally the NO_RSA no longer completely removes the whole -modulus
6634 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6636 [Ralf S. Engelschall]
6638 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6639 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6640 [Arne Ansper <arne@ats.cyber.ee>]
6642 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6643 to be added. Now both 'req' and 'ca' can use new objects defined in the
6647 *) Add cool BIO that does syslog (or event log on NT).
6648 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6650 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6651 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6652 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6653 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6656 *) Add preliminary config info for new extension code.
6659 *) Make RSA_NO_PADDING really use no padding.
6660 [Ulf Moeller <ulf@fitug.de>]
6662 *) Generate errors when private/public key check is done.
6665 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6666 for some CRL extensions and new objects added.
6669 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6670 key usage extension and fuller support for authority key id.
6673 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6674 padding method for RSA, which is recommended for new applications in PKCS
6675 #1 v2.0 (RFC 2437, October 1998).
6676 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6677 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6678 against Bleichbacher's attack on RSA.
6679 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6682 *) Updates to the new SSL compression code
6683 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6685 *) Fix so that the version number in the master secret, when passed
6686 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6687 (because the server will not accept higher), that the version number
6688 is 0x03,0x01, not 0x03,0x00
6689 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6691 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6692 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6693 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6696 *) Support for RAW extensions where an arbitrary extension can be
6697 created by including its DER encoding. See apps/openssl.cnf for
6701 *) Make sure latest Perl versions don't interpret some generated C array
6702 code as Perl array code in the crypto/err/err_genc.pl script.
6703 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6705 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6706 not many people have the assembler. Various Win32 compilation fixes and
6707 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6711 *) Modify configure script 'Configure' to automatically create crypto/date.h
6712 file under Win32 and also build pem.h from pem.org. New script
6713 util/mkfiles.pl to create the MINFO file on environments that can't do a
6714 'make files': perl util/mkfiles.pl >MINFO should work.
6717 *) Major rework of DES function declarations, in the pursuit of correctness
6718 and purity. As a result, many evil casts evaporated, and some weirdness,
6719 too. You may find this causes warnings in your code. Zapping your evil
6720 casts will probably fix them. Mostly.
6723 *) Fix for a typo in asn1.h. Bug fix to object creation script
6724 obj_dat.pl. It considered a zero in an object definition to mean
6725 "end of object": none of the objects in objects.h have any zeros
6726 so it wasn't spotted.
6727 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6729 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6730 Masking (CBCM). In the absence of test vectors, the best I have been able
6731 to do is check that the decrypt undoes the encrypt, so far. Send me test
6732 vectors if you have them.
6735 *) Correct calculation of key length for export ciphers (too much space was
6736 allocated for null ciphers). This has not been tested!
6739 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6740 message is now correct (it understands "crypto" and "ssl" on its
6741 command line). There is also now an "update" option. This will update
6742 the util/ssleay.num and util/libeay.num files with any new functions.
6744 perl util/mkdef.pl crypto ssl update
6745 it will update them.
6748 *) Overhauled the Perl interface (perl/*):
6749 - ported BN stuff to OpenSSL's different BN library
6750 - made the perl/ source tree CVS-aware
6751 - renamed the package from SSLeay to OpenSSL (the files still contain
6752 their history because I've copied them in the repository)
6753 - removed obsolete files (the test scripts will be replaced
6754 by better Test::Harness variants in the future)
6755 [Ralf S. Engelschall]
6757 *) First cut for a very conservative source tree cleanup:
6758 1. merge various obsolete readme texts into doc/ssleay.txt
6759 where we collect the old documents and readme texts.
6760 2. remove the first part of files where I'm already sure that we no
6761 longer need them because of three reasons: either they are just temporary
6762 files which were left by Eric or they are preserved original files where
6763 I've verified that the diff is also available in the CVS via "cvs diff
6764 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6765 the crypto/md/ stuff).
6766 [Ralf S. Engelschall]
6768 *) More extension code. Incomplete support for subject and issuer alt
6769 name, issuer and authority key id. Change the i2v function parameters
6770 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6771 what that's for :-) Fix to ASN1 macro which messed up
6772 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6775 *) Preliminary support for ENUMERATED type. This is largely copied from the
6779 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6780 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6782 *) Make sure `make rehash' target really finds the `openssl' program.
6783 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6785 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6786 like to hear about it if this slows down other processors.
6789 *) Add CygWin32 platform information to Configure script.
6790 [Alan Batie <batie@aahz.jf.intel.com>]
6792 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6793 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6795 *) New program nseq to manipulate netscape certificate sequences
6798 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6802 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6803 but the BN code had some problems that would cause failures when
6804 doing certificate verification and some other functions.
6805 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6807 *) Add ASN1 and PEM code to support netscape certificate sequences.
6810 *) Add ASN1 and PEM code to support netscape certificate sequences.
6813 *) Add several PKIX and private extended key usage OIDs.
6816 *) Modify the 'ca' program to handle the new extension code. Modify
6817 openssl.cnf for new extension format, add comments.
6820 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6821 and add a sample to openssl.cnf so req -x509 now adds appropriate
6825 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6826 error code, add initial support to X509_print() and x509 application.
6829 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6830 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6831 stuff is currently isolated and isn't even compiled yet.
6834 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6835 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6836 Removed the versions check from X509 routines when loading extensions:
6837 this allows certain broken certificates that don't set the version
6838 properly to be processed.
6841 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6842 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6843 can still be regenerated with "make depend".
6846 *) Spelling mistake in C version of CAST-128.
6847 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6849 *) Changes to the error generation code. The perl script err-code.pl
6850 now reads in the old error codes and retains the old numbers, only
6851 adding new ones if necessary. It also only changes the .err files if new
6852 codes are added. The makefiles have been modified to only insert errors
6853 when needed (to avoid needlessly modifying header files). This is done
6854 by only inserting errors if the .err file is newer than the auto generated
6855 C file. To rebuild all the error codes from scratch (the old behaviour)
6856 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6857 or delete all the .err files.
6860 *) CAST-128 was incorrectly implemented for short keys. The C version has
6861 been fixed, but is untested. The assembler versions are also fixed, but
6862 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6863 to regenerate it if needed.
6864 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6865 Hagino <itojun@kame.net>]
6867 *) File was opened incorrectly in randfile.c.
6868 [Ulf Möller <ulf@fitug.de>]
6870 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6871 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6872 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6873 al: it's just almost always a UTCTime. Note this patch adds new error
6874 codes so do a "make errors" if there are problems.
6877 *) Correct Linux 1 recognition in config.
6878 [Ulf Möller <ulf@fitug.de>]
6880 *) Remove pointless MD5 hash when using DSA keys in ca.
6881 [Anonymous <nobody@replay.com>]
6883 *) Generate an error if given an empty string as a cert directory. Also
6884 generate an error if handed NULL (previously returned 0 to indicate an
6885 error, but didn't set one).
6886 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6888 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6891 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6892 parameters. This was causing a warning which killed off the Win32 compile.
6895 *) Remove C++ style comments from crypto/bn/bn_local.h.
6896 [Neil Costigan <neil.costigan@celocom.com>]
6898 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6899 based on a text string, looking up short and long names and finally
6900 "dot" format. The "dot" format stuff didn't work. Added new function
6901 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6902 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6903 OID is not part of the table.
6906 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6907 X509_LOOKUP_by_alias().
6910 *) Sort openssl functions by name.
6913 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6914 encryption from sample DSA keys (in case anyone is interested the password
6918 *) Make _all_ *_free functions accept a NULL pointer.
6919 [Frans Heymans <fheymans@isaserver.be>]
6921 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6923 [Anonymous <nobody@replay.com>]
6925 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6926 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6928 *) Don't blow it for numeric -newkey arguments to apps/req.
6929 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6931 *) Temp key "for export" tests were wrong in s3_srvr.c.
6932 [Anonymous <nobody@replay.com>]
6934 *) Add prototype for temp key callback functions
6935 SSL_CTX_set_tmp_{rsa,dh}_callback().
6938 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6939 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6942 *) X509_name_add_entry() freed the wrong thing after an error.
6943 [Arne Ansper <arne@ats.cyber.ee>]
6945 *) rsa_eay.c would attempt to free a NULL context.
6946 [Arne Ansper <arne@ats.cyber.ee>]
6948 *) BIO_s_socket() had a broken should_retry() on Windoze.
6949 [Arne Ansper <arne@ats.cyber.ee>]
6951 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
6952 [Arne Ansper <arne@ats.cyber.ee>]
6954 *) Make sure the already existing X509_STORE->depth variable is initialized
6955 in X509_STORE_new(), but document the fact that this variable is still
6956 unused in the certificate verification process.
6957 [Ralf S. Engelschall]
6959 *) Fix the various library and apps files to free up pkeys obtained from
6960 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6963 *) Fix reference counting in X509_PUBKEY_get(). This makes
6964 demos/maurice/example2.c work, amongst others, probably.
6965 [Steve Henson and Ben Laurie]
6967 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
6968 `openssl' and second, the shortcut symlinks for the `openssl <command>'
6969 are no longer created. This way we have a single and consistent command
6970 line interface `openssl <command>', similar to `cvs <command>'.
6971 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6973 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
6974 BIT STRING wrapper always have zero unused bits.
6977 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
6980 *) Make the top-level INSTALL documentation easier to understand.
6983 *) Makefiles updated to exit if an error occurs in a sub-directory
6984 make (including if user presses ^C) [Paul Sutton]
6986 *) Make Montgomery context stuff explicit in RSA data structure.
6989 *) Fix build order of pem and err to allow for generated pem.h.
6992 *) Fix renumbering bug in X509_NAME_delete_entry().
6995 *) Enhanced the err-ins.pl script so it makes the error library number
6996 global and can add a library name. This is needed for external ASN1 and
6997 other error libraries.
7000 *) Fixed sk_insert which never worked properly.
7003 *) Fix ASN1 macros so they can handle indefinite length construted
7004 EXPLICIT tags. Some non standard certificates use these: they can now
7008 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7009 into a single doc/ssleay.txt bundle. This way the information is still
7010 preserved but no longer messes up this directory. Now it's new room for
7011 the new set of documenation files.
7012 [Ralf S. Engelschall]
7014 *) SETs were incorrectly DER encoded. This was a major pain, because they
7015 shared code with SEQUENCEs, which aren't coded the same. This means that
7016 almost everything to do with SETs or SEQUENCEs has either changed name or
7017 number of arguments.
7018 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7020 *) Fix test data to work with the above.
7023 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7024 was already fixed by Eric for 0.9.1 it seems.
7025 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7027 *) Autodetect FreeBSD3.
7030 *) Fix various bugs in Configure. This affects the following platforms:
7034 unixware-2.0-pentium
7038 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7039 before they are needed.
7042 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7046 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7048 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7049 changed SSLeay to OpenSSL in version strings.
7050 [Ralf S. Engelschall]
7052 *) Some fixups to the top-level documents.
7055 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7056 because the symlink to include/ was missing.
7057 [Ralf S. Engelschall]
7059 *) Incorporated the popular no-RSA/DSA-only patches
7060 which allow to compile a RSA-free SSLeay.
7061 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7063 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7064 when "ssleay" is still not found.
7065 [Ralf S. Engelschall]
7067 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7068 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7070 *) Updated the README file.
7071 [Ralf S. Engelschall]
7073 *) Added various .cvsignore files in the CVS repository subdirs
7074 to make a "cvs update" really silent.
7075 [Ralf S. Engelschall]
7077 *) Recompiled the error-definition header files and added
7078 missing symbols to the Win32 linker tables.
7079 [Ralf S. Engelschall]
7081 *) Cleaned up the top-level documents;
7082 o new files: CHANGES and LICENSE
7083 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7084 o merged COPYRIGHT into LICENSE
7085 o removed obsolete TODO file
7086 o renamed MICROSOFT to INSTALL.W32
7087 [Ralf S. Engelschall]
7089 *) Removed dummy files from the 0.9.1b source tree:
7090 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7091 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7092 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7093 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7094 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7095 [Ralf S. Engelschall]
7097 *) Added various platform portability fixes.
7100 *) The Genesis of the OpenSSL rpject:
7101 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7102 Young and Tim J. Hudson created while they were working for C2Net until
7104 [The OpenSSL Project]
7107 Changes between 0.9.0b and 0.9.1b [not released]
7109 *) Updated a few CA certificates under certs/
7112 *) Changed some BIGNUM api stuff.
7115 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7116 DGUX x86, Linux Alpha, etc.
7119 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7120 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7124 *) Add -strparse option to asn1pars program which parses nested
7126 [Dr Stephen Henson <shenson@bigfoot.com>]
7128 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7131 *) DSA fix for "ca" program.
7134 *) Added "-genkey" option to "dsaparam" program.
7137 *) Added RIPE MD160 (rmd160) message digest.
7140 *) Added -a (all) option to "ssleay version" command.
7143 *) Added PLATFORM define which is the id given to Configure.
7146 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7149 *) Extended the ASN.1 parser routines.
7152 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7155 *) Added a BN_CTX to the BN library.
7158 *) Fixed the weak key values in DES library
7161 *) Changed API in EVP library for cipher aliases.
7164 *) Added support for RC2/64bit cipher.
7167 *) Converted the lhash library to the crypto/mem.c functions.
7170 *) Added more recognized ASN.1 object ids.
7173 *) Added more RSA padding checks for SSL/TLS.
7176 *) Added BIO proxy/filter functionality.
7179 *) Added extra_certs to SSL_CTX which can be used
7180 send extra CA certificates to the client in the CA cert chain sending
7181 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7184 *) Now Fortezza is denied in the authentication phase because
7185 this is key exchange mechanism is not supported by SSLeay at all.
7188 *) Additional PKCS1 checks.
7191 *) Support the string "TLSv1" for all TLS v1 ciphers.
7194 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7195 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7198 *) Fixed a few memory leaks.
7201 *) Fixed various code and comment typos.
7204 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7205 bytes sent in the client random.
7206 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob