5 Changes between 0.9.7e and 0.9.8 [xx XXX xxxx]
7 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
10 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
11 [Andy Polyakov and a number of other people]
13 *) Improved PowerPC platform support. Most notably BIGNUM assembler
14 implementation contributed by IBM.
15 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
17 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
18 exponent rather than 'unsigned long'. There is a corresponding change to
19 the new 'rsa_keygen' element of the RSA_METHOD structure.
20 [Jelte Jansen, Geoff Thorpe]
22 *) Functionality for creating the initial serial number file is now
23 moved from CA.pl to the 'ca' utility with a new option -create_serial.
25 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
26 number file to 1, which is bound to cause problems. To avoid
27 the problems while respecting compatibility between different 0.9.7
28 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
29 CA.pl for serial number initialization. With the new release 0.9.8,
30 we can fix the problem directly in the 'ca' utility.)
33 *) Reduced header interdepencies by declaring more opaque objects in
34 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
35 give fewer recursive includes, which could break lazy source code - so
36 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
37 developers should define this symbol when building and using openssl to
38 ensure they track the recommended behaviour, interfaces, [etc], but
39 backwards-compatible behaviour prevails when this isn't defined.
42 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
45 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
46 This will generate a random key of the appropriate length based on the
47 cipher context. The EVP_CIPHER can provide its own random key generation
48 routine to support keys of a specific form. This is used in the des and
49 3des routines to generate a key of the correct parity. Update S/MIME
50 code to use new functions and hence generate correct parity DES keys.
51 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
52 valid (weak or incorrect parity).
55 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
56 as looking them up. This is useful when the verified structure may contain
57 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
58 present unless the new PKCS7_NO_CRL flag is asserted.
61 *) Extend ASN1 oid configuration module. It now additionally accepts the
64 shortName = some long name, 1.2.3.4
67 *) Reimplemented the BN_CTX implementation. There is now no more static
68 limitation on the number of variables it can handle nor the depth of the
69 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
70 information can now expand as required, and rather than having a single
71 static array of bignums, BN_CTX now uses a linked-list of such arrays
72 allowing it to expand on demand whilst maintaining the usefulness of
76 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
77 to allow all RSA operations to function using a single BN_CTX.
80 *) Preliminary support for certificate policy evaluation and checking. This
81 is initially intended to pass the tests outlined in "Conformance Testing
82 of Relying Party Client Certificate Path Processing Logic" v1.07.
85 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
86 remained unused and not that useful. A variety of other little bignum
87 tweaks and fixes have also been made continuing on from the audit (see
91 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
92 associated ASN1, EVP and SSL functions and old ASN1 macros.
95 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
96 and this should never fail. So the return value from the use of
97 BN_set_word() (which can fail due to needless expansion) is now deprecated;
98 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
101 *) BN_CTX_get() should return zero-valued bignums, providing the same
102 initialised value as BN_new().
103 [Geoff Thorpe, suggested by Ulf Möller]
105 *) Support for inhibitAnyPolicy certificate extension.
108 *) An audit of the BIGNUM code is underway, for which debugging code is
109 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
110 is considered valid when processing BIGNUMs, and causes execution to
111 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
112 further steps are taken to deliberately pollute unused data in BIGNUM
113 structures to try and expose faulty code further on. For now, openssl will
114 (in its default mode of operation) continue to tolerate the inconsistent
115 forms that it has tolerated in the past, but authors and packagers should
116 consider trying openssl and their own applications when compiled with
117 these debugging symbols defined. It will help highlight potential bugs in
118 their own code, and will improve the test coverage for OpenSSL itself. At
119 some point, these tighter rules will become openssl's default to improve
120 maintainability, though the assert()s and other overheads will remain only
121 in debugging configurations. See bn.h for more details.
122 [Geoff Thorpe, Nils Larsch, Ulf Möller]
124 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
125 that can only be obtained through BN_CTX_new() (which implicitly
126 initialises it). The presence of this function only made it possible
127 to overwrite an existing structure (and cause memory leaks).
130 *) Because of the callback-based approach for implementing LHASH as a
131 template type, lh_insert() adds opaque objects to hash-tables and
132 lh_doall() or lh_doall_arg() are typically used with a destructor callback
133 to clean up those corresponding objects before destroying the hash table
134 (and losing the object pointers). So some over-zealous constifications in
135 LHASH have been relaxed so that lh_insert() does not take (nor store) the
136 objects as "const" and the lh_doall[_arg] callback wrappers are not
137 prototyped to have "const" restrictions on the object pointers they are
138 given (and so aren't required to cast them away any more).
141 *) The tmdiff.h API was so ugly and minimal that our own timing utility
142 (speed) prefers to use its own implementation. The two implementations
143 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
144 its object type properly exposed (MS_TM) instead of casting to/from "char
145 *". This may still change yet if someone realises MS_TM and "ms_time_***"
146 aren't necessarily the greatest nomenclatures - but this is what was used
147 internally to the implementation so I've used that for now.
150 *) Ensure that deprecated functions do not get compiled when
151 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
152 the self-tests were still using deprecated key-generation functions so
153 these have been updated also.
156 *) Reorganise PKCS#7 code to separate the digest location functionality
157 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
158 New function PKCS7_set_digest() to set the digest type for PKCS#7
159 digestedData type. Add additional code to correctly generate the
160 digestedData type and add support for this type in PKCS7 initialization
164 *) New function PKCS7_set0_type_other() this initializes a PKCS7
165 structure of type "other".
168 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
169 sure the loop does correctly stop and breaking ("division by zero")
170 modulus operations are not performed. The (pre-generated) prime
171 table crypto/bn/bn_prime.h was already correct, but it could not be
172 re-generated on some platforms because of the "division by zero"
173 situation in the script.
174 [Ralf S. Engelschall]
176 *) Update support for ECC-based TLS ciphersuites according to
177 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
178 SHA-1 now is only used for "small" curves (where the
179 representation of a field element takes up to 24 bytes); for
180 larger curves, the field element resulting from ECDH is directly
181 used as premaster secret.
182 [Douglas Stebila (Sun Microsystems Laboratories)]
184 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
185 curve secp160r1 to the tests.
186 [Douglas Stebila (Sun Microsystems Laboratories)]
188 *) Add the possibility to load symbols globally with DSO.
189 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
191 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
192 control of the error stack.
195 *) Add support for STORE in ENGINE.
198 *) Add the STORE type. The intention is to provide a common interface
199 to certificate and key stores, be they simple file-based stores, or
200 HSM-type store, or LDAP stores, or...
201 NOTE: The code is currently UNTESTED and isn't really used anywhere.
204 *) Add a generic structure called OPENSSL_ITEM. This can be used to
205 pass a list of arguments to any function as well as provide a way
206 for a function to pass data back to the caller.
209 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
210 works like BUF_strdup() but can be used to duplicate a portion of
211 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
215 *) Add the function sk_find_ex() which works like sk_find(), but will
216 return an index to an element even if an exact match couldn't be
217 found. The index is guaranteed to point at the element where the
218 searched-for key would be inserted to preserve sorting order.
221 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
222 takes an extra flags argument for optional functionality. Currently,
223 the following flags are defined:
225 OBJ_BSEARCH_VALUE_ON_NOMATCH
226 This one gets OBJ_bsearch_ex() to return a pointer to the first
227 element where the comparing function returns a negative or zero
230 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
231 This one gets OBJ_bsearch_ex() to return a pointer to the first
232 element where the comparing function returns zero. This is useful
233 if there are more than one element where the comparing function
237 *) Make it possible to create self-signed certificates with 'openssl ca'
238 in such a way that the self-signed certificate becomes part of the
239 CA database and uses the same mechanisms for serial number generation
240 as all other certificate signing. The new flag '-selfsign' enables
241 this functionality. Adapt CA.sh and CA.pl.in.
244 *) Add functionality to check the public key of a certificate request
245 against a given private. This is useful to check that a certificate
246 request can be signed by that key (self-signing).
249 *) Make it possible to have multiple active certificates with the same
250 subject in the CA index file. This is done only if the keyword
251 'unique_subject' is set to 'no' in the main CA section (default
252 if 'CA_default') of the configuration file. The value is saved
253 with the database itself in a separate index attribute file,
254 named like the index file with '.attr' appended to the name.
257 *) Generate muti valued AVAs using '+' notation in config files for
261 *) Support for nameConstraints certificate extension.
264 *) Support for policyConstraints certificate extension.
267 *) Support for policyMappings certificate extension.
270 *) Make sure the default DSA_METHOD implementation only uses its
271 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
272 and change its own handlers to be NULL so as to remove unnecessary
273 indirection. This lets alternative implementations fallback to the
274 default implementation more easily.
277 *) Support for directoryName in GeneralName related extensions
281 *) Make it possible to link applications using Makefile.shared.
282 Make that possible even when linking against static libraries!
285 *) Support for single pass processing for S/MIME signing. This now
286 means that S/MIME signing can be done from a pipe, in addition
287 cleartext signing (multipart/signed type) is effectively streaming
288 and the signed data does not need to be all held in memory.
290 This is done with a new flag PKCS7_STREAM. When this flag is set
291 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
292 is done after the data is output (and digests calculated) in
296 *) Add full support for -rpath/-R, both in shared libraries and
297 applications, at least on the platforms where it's known how
301 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
302 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
303 will now compute a table of multiples of the generator that
304 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
305 faster (notably in the case of a single point multiplication,
307 [Nils Larsch, Bodo Moeller]
309 *) IPv6 support for certificate extensions. The various extensions
310 which use the IP:a.b.c.d can now take IPv6 addresses using the
311 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
315 *) Added an ENGINE that implements RSA by performing private key
316 exponentiations with the GMP library. The conversions to and from
317 GMP's mpz_t format aren't optimised nor are any montgomery forms
318 cached, and on x86 it appears OpenSSL's own performance has caught up.
319 However there are likely to be other architectures where GMP could
320 provide a boost. This ENGINE is not built in by default, but it can be
321 specified at Configure time and should be accompanied by the necessary
322 linker additions, eg;
323 ./config -DOPENSSL_USE_GMP -lgmp
326 *) "openssl engine" will not display ENGINE/DSO load failure errors when
327 testing availability of engines with "-t" - the old behaviour is
328 produced by increasing the feature's verbosity with "-tt".
331 *) ECDSA routines: under certain error conditions uninitialized BN objects
332 could be freed. Solution: make sure initialization is performed early
333 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
337 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
338 and DH_METHOD (eg. by ENGINE implementations) to override the normal
339 software implementations. For DSA and DH, parameter generation can
340 also be overriden by providing the appropriate method callbacks.
343 *) Change the "progress" mechanism used in key-generation and
344 primality testing to functions that take a new BN_GENCB pointer in
345 place of callback/argument pairs. The new API functions have "_ex"
346 postfixes and the older functions are reimplemented as wrappers for
347 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
348 declarations of the old functions to help (graceful) attempts to
349 migrate to the new functions. Also, the new key-generation API
350 functions operate on a caller-supplied key-structure and return
351 success/failure rather than returning a key or NULL - this is to
352 help make "keygen" another member function of RSA_METHOD etc.
354 Example for using the new callback interface:
356 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
360 BN_GENCB_set(&my_cb, my_callback, my_arg);
362 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
363 /* For the meaning of a, b in calls to my_callback(), see the
364 * documentation of the function that calls the callback.
365 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
366 * my_callback should return 1 if it wants BN_is_prime_ex()
367 * to continue, or 0 to stop.
372 *) Change the ZLIB compression method to be stateful, and make it
373 available to TLS with the number defined in
374 draft-ietf-tls-compression-04.txt.
377 *) Add the ASN.1 structures and functions for CertificatePair, which
378 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
380 CertificatePair ::= SEQUENCE {
381 forward [0] Certificate OPTIONAL,
382 reverse [1] Certificate OPTIONAL,
383 -- at least one of the pair shall be present -- }
385 Also implement the PEM functions to read and write certificate
386 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
388 This needed to be defined, mostly for the sake of the LDAP
389 attribute crossCertificatePair, but may prove useful elsewhere as
393 *) Make it possible to inhibit symlinking of shared libraries in
394 Makefile.shared, for Cygwin's sake.
397 *) Extend the BIGNUM API by creating new macros that behave like
400 void BN_set_sign(BIGNUM *a, int neg);
401 int BN_get_sign(const BIGNUM *a);
403 and avoid the need to access 'a->neg' directly in applications.
404 [Nils Larsch <nla@trustcenter.de>]
406 *) Implement fast modular reduction for pseudo-Mersenne primes
407 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
408 EC_GROUP_new_curve_GFp() will now automatically use this
410 [Nils Larsch <nla@trustcenter.de>]
412 *) Add new lock type (CRYPTO_LOCK_BN).
415 *) Change the ENGINE framework to automatically load engines
416 dynamically from specific directories unless they could be
417 found to already be built in or loaded. Move all the
418 current engines except for the cryptodev one to a new
420 The engines in engines/ are built as shared libraries if
421 the "shared" options was given to ./Configure or ./config.
422 Otherwise, they are inserted in libcrypto.a.
423 /usr/local/ssl/engines is the default directory for dynamic
424 engines, but that can be overriden at configure time through
425 the usual use of --prefix and/or --openssldir, and at run
426 time with the environment variable OPENSSL_ENGINES.
427 [Geoff Thorpe and Richard Levitte]
429 *) Add Makefile.shared, a helper makefile to build shared
430 libraries. Addapt Makefile.org.
433 *) Add version info to Win32 DLLs.
434 [Peter 'Luna' Runestig" <peter@runestig.com>]
436 *) Add new 'medium level' PKCS#12 API. Certificates and keys
437 can be added using this API to created arbitrary PKCS#12
438 files while avoiding the low level API.
440 New options to PKCS12_create(), key or cert can be NULL and
441 will then be omitted from the output file. The encryption
442 algorithm NIDs can be set to -1 for no encryption, the mac
443 iteration count can be set to 0 to omit the mac.
445 Enhance pkcs12 utility by making the -nokeys and -nocerts
446 options work when creating a PKCS#12 file. New option -nomac
447 to omit the mac, NONE can be set for an encryption algorithm.
448 New code is modified to use the enhanced PKCS12_create()
449 instead of the low level API.
452 *) Extend ASN1 encoder to support indefinite length constructed
453 encoding. This can output sequences tags and octet strings in
454 this form. Modify pk7_asn1.c to support indefinite length
455 encoding. This is experimental and needs additional code to
456 be useful, such as an ASN1 bio and some enhanced streaming
459 Extend template encode functionality so that tagging is passed
460 down to the template encoder.
463 *) Let 'openssl req' fail if an argument to '-newkey' is not
464 recognized instead of using RSA as a default.
467 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
468 As these are not official, they are not included in "ALL";
469 the "ECCdraft" ciphersuite group alias can be used to select them.
470 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
472 *) Add ECDH engine support.
473 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
475 *) Add ECDH in new directory crypto/ecdh/.
476 [Douglas Stebila (Sun Microsystems Laboratories)]
478 *) Let BN_rand_range() abort with an error after 100 iterations
479 without success (which indicates a broken PRNG).
482 *) Change BN_mod_sqrt() so that it verifies that the input value
483 is really the square of the return value. (Previously,
484 BN_mod_sqrt would show GIGO behaviour.)
487 *) Add named elliptic curves over binary fields from X9.62, SECG,
488 and WAP/WTLS; add OIDs that were still missing.
490 [Sheueling Chang Shantz and Douglas Stebila
491 (Sun Microsystems Laboratories)]
493 *) Extend the EC library for elliptic curves over binary fields
494 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
497 EC_GF2m_simple_method
501 EC_GROUP_new_curve_GF2m
502 EC_GROUP_set_curve_GF2m
503 EC_GROUP_get_curve_GF2m
504 EC_POINT_set_affine_coordinates_GF2m
505 EC_POINT_get_affine_coordinates_GF2m
506 EC_POINT_set_compressed_coordinates_GF2m
508 Point compression for binary fields is disabled by default for
509 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
512 As binary polynomials are represented as BIGNUMs, various members
513 of the EC_GROUP and EC_POINT data structures can be shared
514 between the implementations for prime fields and binary fields;
515 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
516 are essentially identical to their ..._GFp counterparts.
517 (For simplicity, the '..._GFp' prefix has been dropped from
518 various internal method names.)
520 An internal 'field_div' method (similar to 'field_mul' and
521 'field_sqr') has been added; this is used only for binary fields.
523 [Sheueling Chang Shantz and Douglas Stebila
524 (Sun Microsystems Laboratories)]
526 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
527 through methods ('mul', 'precompute_mult').
529 The generic implementations (now internally called 'ec_wNAF_mul'
530 and 'ec_wNAF_precomputed_mult') remain the default if these
531 methods are undefined.
533 [Sheueling Chang Shantz and Douglas Stebila
534 (Sun Microsystems Laboratories)]
536 *) New function EC_GROUP_get_degree, which is defined through
537 EC_METHOD. For curves over prime fields, this returns the bit
538 length of the modulus.
540 [Sheueling Chang Shantz and Douglas Stebila
541 (Sun Microsystems Laboratories)]
543 *) New functions EC_GROUP_dup, EC_POINT_dup.
544 (These simply call ..._new and ..._copy).
546 [Sheueling Chang Shantz and Douglas Stebila
547 (Sun Microsystems Laboratories)]
549 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
550 Polynomials are represented as BIGNUMs (where the sign bit is not
551 used) in the following functions [macros]:
554 BN_GF2m_sub [= BN_GF2m_add]
555 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
556 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
557 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
559 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
560 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
561 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
562 BN_GF2m_cmp [= BN_ucmp]
564 (Note that only the 'mod' functions are actually for fields GF(2^m).
565 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
567 For some functions, an the irreducible polynomial defining a
568 field can be given as an 'unsigned int[]' with strictly
569 decreasing elements giving the indices of those bits that are set;
570 i.e., p[] represents the polynomial
571 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
573 p[0] > p[1] > ... > p[k] = 0.
574 This applies to the following functions:
579 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
580 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
583 BN_GF2m_mod_solve_quad_arr
587 Conversion can be performed by the following functions:
592 bntest.c has additional tests for binary polynomial arithmetic.
594 Two implementations for BN_GF2m_mod_div() are available.
595 The default algorithm simply uses BN_GF2m_mod_inv() and
596 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
597 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
598 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
600 [Sheueling Chang Shantz and Douglas Stebila
601 (Sun Microsystems Laboratories)]
603 *) Add new error code 'ERR_R_DISABLED' that can be used when some
604 functionality is disabled at compile-time.
605 [Douglas Stebila <douglas.stebila@sun.com>]
607 *) Change default behaviour of 'openssl asn1parse' so that more
608 information is visible when viewing, e.g., a certificate:
610 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
611 mode the content of non-printable OCTET STRINGs is output in a
612 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
613 avoid the appearance of a printable string.
614 [Nils Larsch <nla@trustcenter.de>]
616 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
618 EC_GROUP_set_asn1_flag()
619 EC_GROUP_get_asn1_flag()
620 EC_GROUP_set_point_conversion_form()
621 EC_GROUP_get_point_conversion_form()
622 These control ASN1 encoding details:
623 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
624 has been set to OPENSSL_EC_NAMED_CURVE.
625 - Points are encoded in uncompressed form by default; options for
626 asn1_for are as for point2oct, namely
627 POINT_CONVERSION_COMPRESSED
628 POINT_CONVERSION_UNCOMPRESSED
629 POINT_CONVERSION_HYBRID
631 Also add 'seed' and 'seed_len' members to EC_GROUP with access
635 EC_GROUP_get_seed_len()
636 This is used only for ASN1 purposes (so far).
637 [Nils Larsch <nla@trustcenter.de>]
639 *) Add 'field_type' member to EC_METHOD, which holds the NID
640 of the appropriate field type OID. The new function
641 EC_METHOD_get_field_type() returns this value.
642 [Nils Larsch <nla@trustcenter.de>]
649 providing useful interfaces to EC_POINT_point2oct() and
650 EC_POINT_oct2point().
651 [Nils Larsch <nla@trustcenter.de>]
653 *) Change internals of the EC library so that the functions
654 EC_GROUP_set_generator()
655 EC_GROUP_get_generator()
657 EC_GROUP_get_cofactor()
658 are implemented directly in crypto/ec/ec_lib.c and not dispatched
659 to methods, which would lead to unnecessary code duplication when
660 adding different types of curves.
661 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
663 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
664 arithmetic, and such that modified wNAFs are generated
665 (which avoid length expansion in many cases).
668 *) Add a function EC_GROUP_check_discriminant() (defined via
669 EC_METHOD) that verifies that the curve discriminant is non-zero.
671 Add a function EC_GROUP_check() that makes some sanity tests
672 on a EC_GROUP, its generator and order. This includes
673 EC_GROUP_check_discriminant().
674 [Nils Larsch <nla@trustcenter.de>]
676 *) Add ECDSA in new directory crypto/ecdsa/.
678 Add applications 'openssl ecparam' and 'openssl ecdsa'
679 (these are based on 'openssl dsaparam' and 'openssl dsa').
681 ECDSA support is also included in various other files across the
682 library. Most notably,
683 - 'openssl req' now has a '-newkey ecdsa:file' option;
684 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
685 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
686 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
687 them suitable for ECDSA where domain parameters must be
688 extracted before the specific public key;
689 - ECDSA engine support has been added.
690 [Nils Larsch <nla@trustcenter.de>]
692 *) Include some named elliptic curves, and add OIDs from X9.62,
693 SECG, and WAP/WTLS. Each curve can be obtained from the new
695 EC_GROUP_new_by_nid(),
696 and the list of available named curves can be obtained with
697 EC_get_builtin_curves().
698 Also add a 'curve_name' member to EC_GROUP objects, which can be
702 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
704 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
705 was actually never needed) and in BN_mul(). The removal in BN_mul()
706 required a small change in bn_mul_part_recursive() and the addition
707 of the functions bn_cmp_part_words(), bn_sub_part_words() and
708 bn_add_part_words(), which do the same thing as bn_cmp_words(),
709 bn_sub_words() and bn_add_words() except they take arrays with
713 Changes between 0.9.7d and 0.9.7e [XX xxx XXXX]
715 *) Various fixes to s3_pkt.c so alerts are sent properly.
716 [David Holmes <d.holmes@f5.com>]
718 *) Reduce the chances of duplicate issuer name and serial numbers (in
719 violation of RFC3280) using the OpenSSL certificate creation utilities.
720 This is done by creating a random 64 bit value for the initial serial
721 number when a serial number file is created or when a self signed
722 certificate is created using 'openssl req -x509'. The initial serial
723 number file is created using 'openssl x509 -next_serial' in CA.pl
724 rather than being initialized to 1.
727 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
729 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
730 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
731 [Joe Orton, Steve Henson]
733 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
735 [Joe Orton, Steve Henson]
737 *) Make it possible to have multiple active certificates with the same
738 subject in the CA index file. This is done only if the keyword
739 'unique_subject' is set to 'no' in the main CA section (default
740 if 'CA_default') of the configuration file. The value is saved
741 with the database itself in a separate index attribute file,
742 named like the index file with '.attr' appended to the name.
745 *) X509 verify fixes. Disable broken certificate workarounds when
746 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
747 keyUsage extension present. Don't accept CRLs with unhandled critical
748 extensions: since verify currently doesn't process CRL extensions this
749 rejects a CRL with *any* critical extensions. Add new verify error codes
753 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
754 A clarification of RFC2560 will require the use of OCTET STRINGs and
755 some implementations cannot handle the current raw format. Since OpenSSL
756 copies and compares OCSP nonces as opaque blobs without any attempt at
757 parsing them this should not create any compatibility issues.
760 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
761 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
762 this HMAC (and other) operations are several times slower than OpenSSL
766 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
767 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
769 *) Use the correct content when signing type "other".
772 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
774 *) Fix various bugs revealed by running the NISCC test suite:
776 Stop out of bounds reads in the ASN1 code when presented with
777 invalid tags (CAN-2003-0543 and CAN-2003-0544).
779 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
781 If verify callback ignores invalid public key errors don't try to check
782 certificate signature with the NULL public key.
786 *) New -ignore_err option in ocsp application to stop the server
787 exiting on the first error in a request.
790 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
791 if the server requested one: as stated in TLS 1.0 and SSL 3.0
795 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
796 extra data after the compression methods not only for TLS 1.0
797 but also for SSL 3.0 (as required by the specification).
798 [Bodo Moeller; problem pointed out by Matthias Loepfe]
800 *) Change X509_certificate_type() to mark the key as exported/exportable
801 when it's 512 *bits* long, not 512 bytes.
804 *) Change AES_cbc_encrypt() so it outputs exact multiple of
805 blocks during encryption.
808 *) Various fixes to base64 BIO and non blocking I/O. On write
809 flushes were not handled properly if the BIO retried. On read
810 data was not being buffered properly and had various logic bugs.
811 This also affects blocking I/O when the data being decoded is a
815 *) Various S/MIME bugfixes and compatibility changes:
816 output correct application/pkcs7 MIME type if
817 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
818 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
819 of files as .eml work). Correctly handle very long lines in MIME
823 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
825 *) Countermeasure against the Klima-Pokorny-Rosa extension of
826 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
827 a protocol version number mismatch like a decryption error
828 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
831 *) Turn on RSA blinding by default in the default implementation
832 to avoid a timing attack. Applications that don't want it can call
833 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
834 They would be ill-advised to do so in most cases.
835 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
837 *) Change RSA blinding code so that it works when the PRNG is not
838 seeded (in this case, the secret RSA exponent is abused as
839 an unpredictable seed -- if it is not unpredictable, there
840 is no point in blinding anyway). Make RSA blinding thread-safe
841 by remembering the creator's thread ID in rsa->blinding and
842 having all other threads use local one-time blinding factors
843 (this requires more computation than sharing rsa->blinding, but
844 avoids excessive locking; and if an RSA object is not shared
845 between threads, blinding will still be very fast).
848 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
849 ENGINE as defaults for all supported algorithms irrespective of
850 the 'flags' parameter. 'flags' is now honoured, so applications
851 should make sure they are passing it correctly.
854 *) Target "mingw" now allows native Windows code to be generated in
855 the Cygwin environment as well as with the MinGW compiler.
858 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
860 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
861 via timing by performing a MAC computation even if incorrrect
862 block cipher padding has been found. This is a countermeasure
863 against active attacks where the attacker has to distinguish
864 between bad padding and a MAC verification error. (CAN-2003-0078)
866 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
867 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
868 Martin Vuagnoux (EPFL, Ilion)]
870 *) Make the no-err option work as intended. The intention with no-err
871 is not to have the whole error stack handling routines removed from
872 libcrypto, it's only intended to remove all the function name and
873 reason texts, thereby removing some of the footprint that may not
874 be interesting if those errors aren't displayed anyway.
876 NOTE: it's still possible for any application or module to have it's
877 own set of error texts inserted. The routines are there, just not
878 used by default when no-err is given.
881 *) Add support for FreeBSD on IA64.
882 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
884 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
885 Kerberos function mit_des_cbc_cksum(). Before this change,
886 the value returned by DES_cbc_cksum() was like the one from
887 mit_des_cbc_cksum(), except the bytes were swapped.
888 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
890 *) Allow an application to disable the automatic SSL chain building.
891 Before this a rather primitive chain build was always performed in
892 ssl3_output_cert_chain(): an application had no way to send the
893 correct chain if the automatic operation produced an incorrect result.
895 Now the chain builder is disabled if either:
897 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
899 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
901 The reasoning behind this is that an application would not want the
902 auto chain building to take place if extra chain certificates are
903 present and it might also want a means of sending no additional
904 certificates (for example the chain has two certificates and the
908 *) Add the possibility to build without the ENGINE framework.
909 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
911 *) Under Win32 gmtime() can return NULL: check return value in
912 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
915 *) DSA routines: under certain error conditions uninitialized BN objects
916 could be freed. Solution: make sure initialization is performed early
917 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
918 Nils Larsch <nla@trustcenter.de> via PR#459)
921 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
922 checked on reconnect on the client side, therefore session resumption
923 could still fail with a "ssl session id is different" error. This
924 behaviour is masked when SSL_OP_ALL is used due to
925 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
926 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
930 *) IA-32 assembler support enhancements: unified ELF targets, support
931 for SCO/Caldera platforms, fix for Cygwin shared build.
934 *) Add support for FreeBSD on sparc64. As a consequence, support for
935 FreeBSD on non-x86 processors is separate from x86 processors on
936 the config script, much like the NetBSD support.
937 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
939 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
941 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
944 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
945 code (06) was taken as the first octet of the session ID and the last
946 octet was ignored consequently. As a result SSLv2 client side session
947 caching could not have worked due to the session ID mismatch between
949 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
953 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
954 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
958 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
959 seems that in spite of existing for more than a year, many application
960 author have done nothing to provide the necessary callbacks, which
961 means that this particular engine will not work properly anywhere.
962 This is a very unfortunate situation which forces us, in the name
963 of usability, to give the hw_ncipher.c a static lock, which is part
965 NOTE: This is for the 0.9.7 series ONLY. This hack will never
966 appear in 0.9.8 or later. We EXPECT application authors to have
967 dealt properly with this when 0.9.8 is released (unless we actually
968 make such changes in the libcrypto locking code that changes will
969 have to be made anyway).
972 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
973 octets have been read, EOF or an error occurs. Without this change
974 some truncated ASN1 structures will not produce an error.
977 *) Disable Heimdal support, since it hasn't been fully implemented.
978 Still give the possibility to force the use of Heimdal, but with
979 warnings and a request that patches get sent to openssl-dev.
982 *) Add the VC-CE target, introduce the WINCE sysname, and add
983 INSTALL.WCE and appropriate conditionals to make it build.
984 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
986 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
987 cygssl-x.y.z.dll, where x, y and z are the major, minor and
988 edit numbers of the version.
989 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
991 *) Introduce safe string copy and catenation functions
992 (BUF_strlcpy() and BUF_strlcat()).
993 [Ben Laurie (CHATS) and Richard Levitte]
995 *) Avoid using fixed-size buffers for one-line DNs.
998 *) Add BUF_MEM_grow_clean() to avoid information leakage when
999 resizing buffers containing secrets, and use where appropriate.
1000 [Ben Laurie (CHATS)]
1002 *) Avoid using fixed size buffers for configuration file location.
1003 [Ben Laurie (CHATS)]
1005 *) Avoid filename truncation for various CA files.
1006 [Ben Laurie (CHATS)]
1008 *) Use sizeof in preference to magic numbers.
1009 [Ben Laurie (CHATS)]
1011 *) Avoid filename truncation in cert requests.
1012 [Ben Laurie (CHATS)]
1014 *) Add assertions to check for (supposedly impossible) buffer
1016 [Ben Laurie (CHATS)]
1018 *) Don't cache truncated DNS entries in the local cache (this could
1019 potentially lead to a spoofing attack).
1020 [Ben Laurie (CHATS)]
1022 *) Fix various buffers to be large enough for hex/decimal
1023 representations in a platform independent manner.
1024 [Ben Laurie (CHATS)]
1026 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1027 resizing buffers containing secrets, and use where appropriate.
1028 [Ben Laurie (CHATS)]
1030 *) Add BIO_indent() to avoid much slightly worrying code to do
1032 [Ben Laurie (CHATS)]
1034 *) Convert sprintf()/BIO_puts() to BIO_printf().
1035 [Ben Laurie (CHATS)]
1037 *) buffer_gets() could terminate with the buffer only half
1039 [Ben Laurie (CHATS)]
1041 *) Add assertions to prevent user-supplied crypto functions from
1042 overflowing internal buffers by having large block sizes, etc.
1043 [Ben Laurie (CHATS)]
1045 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1047 [Ben Laurie (CHATS)]
1049 *) Eliminate unused copy of key in RC4.
1050 [Ben Laurie (CHATS)]
1052 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1053 [Ben Laurie (CHATS)]
1055 *) Fix off-by-one error in EGD path.
1056 [Ben Laurie (CHATS)]
1058 *) If RANDFILE path is too long, ignore instead of truncating.
1059 [Ben Laurie (CHATS)]
1061 *) Eliminate unused and incorrectly sized X.509 structure
1063 [Ben Laurie (CHATS)]
1065 *) Eliminate unused and dangerous function knumber().
1066 [Ben Laurie (CHATS)]
1068 *) Eliminate unused and dangerous structure, KSSL_ERR.
1069 [Ben Laurie (CHATS)]
1071 *) Protect against overlong session ID context length in an encoded
1072 session object. Since these are local, this does not appear to be
1074 [Ben Laurie (CHATS)]
1076 *) Change from security patch (see 0.9.6e below) that did not affect
1077 the 0.9.6 release series:
1079 Remote buffer overflow in SSL3 protocol - an attacker could
1080 supply an oversized master key in Kerberos-enabled versions.
1082 [Ben Laurie (CHATS)]
1084 *) Change the SSL kerb5 codes to match RFC 2712.
1087 *) Make -nameopt work fully for req and add -reqopt switch.
1088 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1090 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1091 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1093 *) Make sure tests can be performed even if the corresponding algorithms
1094 have been removed entirely. This was also the last step to make
1095 OpenSSL compilable with DJGPP under all reasonable conditions.
1096 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1098 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1099 to allow version independent disabling of normally unselected ciphers,
1100 which may be activated as a side-effect of selecting a single cipher.
1102 (E.g., cipher list string "RSA" enables ciphersuites that are left
1103 out of "ALL" because they do not provide symmetric encryption.
1104 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1105 [Lutz Jaenicke, Bodo Moeller]
1107 *) Add appropriate support for separate platform-dependent build
1108 directories. The recommended way to make a platform-dependent
1109 build directory is the following (tested on Linux), maybe with
1112 # Place yourself outside of the OpenSSL source tree. In
1113 # this example, the environment variable OPENSSL_SOURCE
1114 # is assumed to contain the absolute OpenSSL source directory.
1115 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1116 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1117 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1118 mkdir -p `dirname $F`
1119 ln -s $OPENSSL_SOURCE/$F $F
1122 To be absolutely sure not to disturb the source tree, a "make clean"
1123 is a good thing. If it isn't successfull, don't worry about it,
1124 it probably means the source directory is very clean.
1127 *) Make sure any ENGINE control commands make local copies of string
1128 pointers passed to them whenever necessary. Otherwise it is possible
1129 the caller may have overwritten (or deallocated) the original string
1130 data when a later ENGINE operation tries to use the stored values.
1131 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1133 *) Improve diagnostics in file reading and command-line digests.
1134 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1136 *) Add AES modes CFB and OFB to the object database. Correct an
1137 error in AES-CFB decryption.
1140 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1141 allows existing EVP_CIPHER_CTX structures to be reused after
1142 calling EVP_*Final(). This behaviour is used by encryption
1143 BIOs and some applications. This has the side effect that
1144 applications must explicitly clean up cipher contexts with
1145 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1148 *) Check the values of dna and dnb in bn_mul_recursive before calling
1149 bn_mul_comba (a non zero value means the a or b arrays do not contain
1150 n2 elements) and fallback to bn_mul_normal if either is not zero.
1153 *) Fix escaping of non-ASCII characters when using the -subj option
1154 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1157 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1158 form for "surname", serialNumber has no short form.
1159 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1160 therefore remove "mail" short name for "internet 7".
1161 The OID for unique identifiers in X509 certificates is
1162 x500UniqueIdentifier, not uniqueIdentifier.
1163 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1166 *) Add an "init" command to the ENGINE config module and auto initialize
1167 ENGINEs. Without any "init" command the ENGINE will be initialized
1168 after all ctrl commands have been executed on it. If init=1 the
1169 ENGINE is initailized at that point (ctrls before that point are run
1170 on the uninitialized ENGINE and after on the initialized one). If
1171 init=0 then the ENGINE will not be iniatialized at all.
1174 *) Fix the 'app_verify_callback' interface so that the user-defined
1175 argument is actually passed to the callback: In the
1176 SSL_CTX_set_cert_verify_callback() prototype, the callback
1177 declaration has been changed from
1180 int (*cb)(X509_STORE_CTX *,void *);
1181 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1182 i=s->ctx->app_verify_callback(&ctx)
1183 has been changed into
1184 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1186 To update applications using SSL_CTX_set_cert_verify_callback(),
1187 a dummy argument can be added to their callback functions.
1188 [D. K. Smetters <smetters@parc.xerox.com>]
1190 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1191 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1193 *) Add and OPENSSL_LOAD_CONF define which will cause
1194 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1195 This allows older applications to transparently support certain
1196 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1197 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1198 load the config file and OPENSSL_add_all_algorithms_conf() which will
1199 always load it have also been added.
1202 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1203 Adjust NIDs and EVP layer.
1204 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1206 *) Config modules support in openssl utility.
1208 Most commands now load modules from the config file,
1209 though in a few (such as version) this isn't done
1210 because it couldn't be used for anything.
1212 In the case of ca and req the config file used is
1213 the same as the utility itself: that is the -config
1214 command line option can be used to specify an
1218 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1219 use "openssl_conf" if filename is NULL use default openssl config file.
1222 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1223 config section name. Add a new flag to tolerate a missing config file
1224 and move code to CONF_modules_load_file().
1227 *) Support for crypto accelerator cards from Accelerated Encryption
1228 Processing, www.aep.ie. (Use engine 'aep')
1229 The support was copied from 0.9.6c [engine] and adapted/corrected
1230 to work with the new engine framework.
1231 [AEP Inc. and Richard Levitte]
1233 *) Support for SureWare crypto accelerator cards from Baltimore
1234 Technologies. (Use engine 'sureware')
1235 The support was copied from 0.9.6c [engine] and adapted
1236 to work with the new engine framework.
1239 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1240 make the newer ENGINE framework commands for the CHIL engine work.
1241 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1243 *) Make it possible to produce shared libraries on ReliantUNIX.
1244 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1246 *) Add the configuration target debug-linux-ppro.
1247 Make 'openssl rsa' use the general key loading routines
1248 implemented in apps.c, and make those routines able to
1249 handle the key format FORMAT_NETSCAPE and the variant
1251 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1253 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1254 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1256 *) Add -keyform to rsautl, and document -engine.
1257 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1259 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1260 BIO_R_NO_SUCH_FILE error code rather than the generic
1261 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1264 *) Add new functions
1266 ERR_peek_last_error_line
1267 ERR_peek_last_error_line_data.
1268 These are similar to
1271 ERR_peek_error_line_data,
1272 but report on the latest error recorded rather than the first one
1273 still in the error queue.
1274 [Ben Laurie, Bodo Moeller]
1276 *) default_algorithms option in ENGINE config module. This allows things
1278 default_algorithms = ALL
1279 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1282 *) Prelminary ENGINE config module.
1285 *) New experimental application configuration code.
1288 *) Change the AES code to follow the same name structure as all other
1289 symmetric ciphers, and behave the same way. Move everything to
1290 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1291 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1293 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1294 [Ben Laurie and Theo de Raadt]
1296 *) Add option to output public keys in req command.
1297 [Massimiliano Pala madwolf@openca.org]
1299 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1300 (up to about 10% better than before for P-192 and P-224).
1303 *) New functions/macros
1305 SSL_CTX_set_msg_callback(ctx, cb)
1306 SSL_CTX_set_msg_callback_arg(ctx, arg)
1307 SSL_set_msg_callback(ssl, cb)
1308 SSL_set_msg_callback_arg(ssl, arg)
1310 to request calling a callback function
1312 void cb(int write_p, int version, int content_type,
1313 const void *buf, size_t len, SSL *ssl, void *arg)
1315 whenever a protocol message has been completely received
1316 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1317 protocol version according to which the SSL library interprets
1318 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1319 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1320 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1321 specification (change_cipher_spec(20), alert(21), handshake(22)).
1322 'buf' and 'len' point to the actual message, 'ssl' to the
1323 SSL object, and 'arg' is the application-defined value set by
1324 SSL[_CTX]_set_msg_callback_arg().
1326 'openssl s_client' and 'openssl s_server' have new '-msg' options
1327 to enable a callback that displays all protocol messages.
1330 *) Change the shared library support so shared libraries are built as
1331 soon as the corresponding static library is finished, and thereby get
1332 openssl and the test programs linked against the shared library.
1333 This still only happens when the keyword "shard" has been given to
1334 the configuration scripts.
1336 NOTE: shared library support is still an experimental thing, and
1337 backward binary compatibility is still not guaranteed.
1338 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1340 *) Add support for Subject Information Access extension.
1341 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1343 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1344 additional bytes when new memory had to be allocated, not just
1345 when reusing an existing buffer.
1348 *) New command line and configuration option 'utf8' for the req command.
1349 This allows field values to be specified as UTF8 strings.
1352 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1353 runs for the former and machine-readable output for the latter.
1356 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1357 of the e-mail address in the DN (i.e., it will go into a certificate
1358 extension only). The new configuration file option 'email_in_dn = no'
1359 has the same effect.
1360 [Massimiliano Pala madwolf@openca.org]
1362 *) Change all functions with names starting with des_ to be starting
1363 with DES_ instead. Add wrappers that are compatible with libdes,
1364 but are named _ossl_old_des_*. Finally, add macros that map the
1365 des_* symbols to the corresponding _ossl_old_des_* if libdes
1366 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1367 desired, the des_* symbols will be mapped to DES_*, with one
1370 Since we provide two compatibility mappings, the user needs to
1371 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1372 compatibility is desired. The default (i.e., when that macro
1373 isn't defined) is OpenSSL 0.9.6c compatibility.
1375 There are also macros that enable and disable the support of old
1376 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1377 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1378 are defined, the default will apply: to support the old des routines.
1380 In either case, one must include openssl/des.h to get the correct
1381 definitions. Do not try to just include openssl/des_old.h, that
1384 NOTE: This is a major break of an old API into a new one. Software
1385 authors are encouraged to switch to the DES_ style functions. Some
1386 time in the future, des_old.h and the libdes compatibility functions
1387 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1388 default), and then completely removed.
1391 *) Test for certificates which contain unsupported critical extensions.
1392 If such a certificate is found during a verify operation it is
1393 rejected by default: this behaviour can be overridden by either
1394 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1395 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1396 X509_supported_extension() has also been added which returns 1 if a
1397 particular extension is supported.
1400 *) Modify the behaviour of EVP cipher functions in similar way to digests
1401 to retain compatibility with existing code.
1404 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1405 compatibility with existing code. In particular the 'ctx' parameter does
1406 not have to be to be initialized before the call to EVP_DigestInit() and
1407 it is tidied up after a call to EVP_DigestFinal(). New function
1408 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1409 EVP_MD_CTX_copy() changed to not require the destination to be
1410 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1411 requires the destination to be valid.
1413 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1414 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1417 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1418 so that complete 'Handshake' protocol structures are kept in memory
1419 instead of overwriting 'msg_type' and 'length' with 'body' data.
1422 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1423 [Massimo Santin via Richard Levitte]
1425 *) Major restructuring to the underlying ENGINE code. This includes
1426 reduction of linker bloat, separation of pure "ENGINE" manipulation
1427 (initialisation, etc) from functionality dealing with implementations
1428 of specific crypto iterfaces. This change also introduces integrated
1429 support for symmetric ciphers and digest implementations - so ENGINEs
1430 can now accelerate these by providing EVP_CIPHER and EVP_MD
1431 implementations of their own. This is detailed in crypto/engine/README
1432 as it couldn't be adequately described here. However, there are a few
1433 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1434 were changed in the original introduction of ENGINE code have now
1435 reverted back - the hooking from this code to ENGINE is now a good
1436 deal more passive and at run-time, operations deal directly with
1437 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1438 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1439 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1440 they were not being used by the framework as there is no concept of a
1441 BIGNUM_METHOD and they could not be generalised to the new
1442 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1443 ENGINE_cpy() has been removed as it cannot be consistently defined in
1447 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1450 *) Change mkdef.pl to sort symbols that get the same entry number,
1451 and make sure the automatically generated functions ERR_load_*
1452 become part of libeay.num as well.
1455 *) New function SSL_renegotiate_pending(). This returns true once
1456 renegotiation has been requested (either SSL_renegotiate() call
1457 or HelloRequest/ClientHello receveived from the peer) and becomes
1458 false once a handshake has been completed.
1459 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1460 sends a HelloRequest, but does not ensure that a handshake takes
1461 place. SSL_renegotiate_pending() is useful for checking if the
1462 client has followed the request.)
1465 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1466 By default, clients may request session resumption even during
1467 renegotiation (if session ID contexts permit); with this option,
1468 session resumption is possible only in the first handshake.
1470 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1471 more bits available for options that should not be part of
1472 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1475 *) Add some demos for certificate and certificate request creation.
1478 *) Make maximum certificate chain size accepted from the peer application
1479 settable (SSL*_get/set_max_cert_list()), as proposed by
1480 "Douglas E. Engert" <deengert@anl.gov>.
1483 *) Add support for shared libraries for Unixware-7
1484 (Boyd Lynn Gerber <gerberb@zenez.com>).
1487 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1488 be done prior to destruction. Use this to unload error strings from
1489 ENGINEs that load their own error strings. NB: This adds two new API
1490 functions to "get" and "set" this destroy handler in an ENGINE.
1493 *) Alter all existing ENGINE implementations (except "openssl" and
1494 "openbsd") to dynamically instantiate their own error strings. This
1495 makes them more flexible to be built both as statically-linked ENGINEs
1496 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1497 Also, add stub code to each that makes building them as self-contained
1498 shared-libraries easier (see README.ENGINE).
1501 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1502 implementations into applications that are completely implemented in
1503 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1504 commands that can be used to configure what shared-library to load and
1505 to control aspects of the way it is handled. Also, made an update to
1506 the README.ENGINE file that brings its information up-to-date and
1507 provides some information and instructions on the "dynamic" ENGINE
1508 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1511 *) Make it possible to unload ranges of ERR strings with a new
1512 "ERR_unload_strings" function.
1515 *) Add a copy() function to EVP_MD.
1518 *) Make EVP_MD routines take a context pointer instead of just the
1519 md_data void pointer.
1522 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1523 that the digest can only process a single chunk of data
1524 (typically because it is provided by a piece of
1525 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1526 is only going to provide a single chunk of data, and hence the
1527 framework needn't accumulate the data for oneshot drivers.
1530 *) As with "ERR", make it possible to replace the underlying "ex_data"
1531 functions. This change also alters the storage and management of global
1532 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1533 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1534 index counters. The API functions that use this state have been changed
1535 to take a "class_index" rather than pointers to the class's local STACK
1536 and counter, and there is now an API function to dynamically create new
1537 classes. This centralisation allows us to (a) plug a lot of the
1538 thread-safety problems that existed, and (b) makes it possible to clean
1539 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1540 such data would previously have always leaked in application code and
1541 workarounds were in place to make the memory debugging turn a blind eye
1542 to it. Application code that doesn't use this new function will still
1543 leak as before, but their memory debugging output will announce it now
1544 rather than letting it slide.
1546 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1547 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1548 has a return value to indicate success or failure.
1551 *) Make it possible to replace the underlying "ERR" functions such that the
1552 global state (2 LHASH tables and 2 locks) is only used by the "default"
1553 implementation. This change also adds two functions to "get" and "set"
1554 the implementation prior to it being automatically set the first time
1555 any other ERR function takes place. Ie. an application can call "get",
1556 pass the return value to a module it has just loaded, and that module
1557 can call its own "set" function using that value. This means the
1558 module's "ERR" operations will use (and modify) the error state in the
1559 application and not in its own statically linked copy of OpenSSL code.
1562 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1563 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1564 the operation, and provides a more encapsulated way for external code
1565 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1566 to use these functions rather than manually incrementing the counts.
1568 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1571 *) Add EVP test program.
1574 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1577 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1578 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1579 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1580 These allow a CRL to be built without having to access X509_CRL fields
1581 directly. Modify 'ca' application to use new functions.
1584 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1585 bug workarounds. Rollback attack detection is a security feature.
1586 The problem will only arise on OpenSSL servers when TLSv1 is not
1587 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1588 Software authors not wanting to support TLSv1 will have special reasons
1589 for their choice and can explicitly enable this option.
1590 [Bodo Moeller, Lutz Jaenicke]
1592 *) Rationalise EVP so it can be extended: don't include a union of
1593 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1594 (similar to those existing for EVP_CIPHER_CTX).
1599 EVP_MD_CTX_init(&md); /* new function call */
1600 EVP_DigestInit(&md, EVP_sha1());
1601 EVP_DigestUpdate(&md, in, len);
1602 EVP_DigestFinal(&md, out, NULL);
1603 EVP_MD_CTX_cleanup(&md); /* new function call */
1607 *) Make DES key schedule conform to the usual scheme, as well as
1608 correcting its structure. This means that calls to DES functions
1609 now have to pass a pointer to a des_key_schedule instead of a
1610 plain des_key_schedule (which was actually always a pointer
1613 des_key_schedule ks;
1615 des_set_key_checked(..., &ks);
1616 des_ncbc_encrypt(..., &ks, ...);
1618 (Note that a later change renames 'des_...' into 'DES_...'.)
1621 *) Initial reduction of linker bloat: the use of some functions, such as
1622 PEM causes large amounts of unused functions to be linked in due to
1623 poor organisation. For example pem_all.c contains every PEM function
1624 which has a knock on effect of linking in large amounts of (unused)
1625 ASN1 code. Grouping together similar functions and splitting unrelated
1626 functions prevents this.
1629 *) Cleanup of EVP macros.
1632 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1633 correct _ecb suffix.
1636 *) Add initial OCSP responder support to ocsp application. The
1637 revocation information is handled using the text based index
1638 use by the ca application. The responder can either handle
1639 requests generated internally, supplied in files (for example
1640 via a CGI script) or using an internal minimal server.
1643 *) Add configuration choices to get zlib compression for TLS.
1646 *) Changes to Kerberos SSL for RFC 2712 compliance:
1647 1. Implemented real KerberosWrapper, instead of just using
1648 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1649 2. Implemented optional authenticator field of KerberosWrapper.
1651 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1652 and authenticator structs; see crypto/krb5/.
1654 Generalized Kerberos calls to support multiple Kerberos libraries.
1655 [Vern Staats <staatsvr@asc.hpc.mil>,
1656 Jeffrey Altman <jaltman@columbia.edu>
1657 via Richard Levitte]
1659 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1660 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1661 values for each of the key sizes rather than having just
1662 parameters (and 'speed' generating keys each time).
1665 *) Speed up EVP routines.
1668 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1669 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1670 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1671 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1673 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1674 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1675 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1678 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1680 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1683 *) Added the OS2-EMX target.
1684 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1686 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1687 to support NCONF routines in extension code. New function CONF_set_nconf()
1688 to allow functions which take an NCONF to also handle the old LHASH
1689 structure: this means that the old CONF compatible routines can be
1690 retained (in particular wrt extensions) without having to duplicate the
1691 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1694 *) Enhance the general user interface with mechanisms for inner control
1695 and with possibilities to have yes/no kind of prompts.
1698 *) Change all calls to low level digest routines in the library and
1699 applications to use EVP. Add missing calls to HMAC_cleanup() and
1700 don't assume HMAC_CTX can be copied using memcpy().
1701 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1703 *) Add the possibility to control engines through control names but with
1704 arbitrary arguments instead of just a string.
1705 Change the key loaders to take a UI_METHOD instead of a callback
1706 function pointer. NOTE: this breaks binary compatibility with earlier
1707 versions of OpenSSL [engine].
1708 Adapt the nCipher code for these new conditions and add a card insertion
1712 *) Enhance the general user interface with mechanisms to better support
1713 dialog box interfaces, application-defined prompts, the possibility
1714 to use defaults (for example default passwords from somewhere else)
1715 and interrupts/cancellations.
1718 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1719 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1722 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1723 tidy up some unnecessarily weird code in 'sk_new()').
1724 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1726 *) Change the key loading routines for ENGINEs to use the same kind
1727 callback (pem_password_cb) as all other routines that need this
1731 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1732 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1733 than this minimum value is recommended.
1736 *) New random seeder for OpenVMS, using the system process statistics
1737 that are easily reachable.
1740 *) Windows apparently can't transparently handle global
1741 variables defined in DLLs. Initialisations such as:
1743 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1745 wont compile. This is used by the any applications that need to
1746 declare their own ASN1 modules. This was fixed by adding the option
1747 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1748 needed for static libraries under Win32.
1751 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1752 setting of purpose and trust fields. New X509_STORE trust and
1753 purpose functions and tidy up setting in other SSL functions.
1756 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1757 structure. These are inherited by X509_STORE_CTX when it is
1758 initialised. This allows various defaults to be set in the
1759 X509_STORE structure (such as flags for CRL checking and custom
1760 purpose or trust settings) for functions which only use X509_STORE_CTX
1761 internally such as S/MIME.
1763 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1764 trust settings if they are not set in X509_STORE. This allows X509_STORE
1765 purposes and trust (in S/MIME for example) to override any set by default.
1767 Add command line options for CRL checking to smime, s_client and s_server
1771 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1772 are set then the CRL is looked up in the X509_STORE structure and
1773 its validity and signature checked, then if the certificate is found
1774 in the CRL the verify fails with a revoked error.
1776 Various new CRL related callbacks added to X509_STORE_CTX structure.
1778 Command line options added to 'verify' application to support this.
1780 This needs some additional work, such as being able to handle multiple
1781 CRLs with different times, extension based lookup (rather than just
1782 by subject name) and ultimately more complete V2 CRL extension
1786 *) Add a general user interface API (crypto/ui/). This is designed
1787 to replace things like des_read_password and friends (backward
1788 compatibility functions using this new API are provided).
1789 The purpose is to remove prompting functions from the DES code
1790 section as well as provide for prompting through dialog boxes in
1791 a window system and the like.
1794 *) Add "ex_data" support to ENGINE so implementations can add state at a
1795 per-structure level rather than having to store it globally.
1798 *) Make it possible for ENGINE structures to be copied when retrieved by
1799 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1800 This causes the "original" ENGINE structure to act like a template,
1801 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1802 operational state can be localised to each ENGINE structure, despite the
1803 fact they all share the same "methods". New ENGINE structures returned in
1804 this case have no functional references and the return value is the single
1805 structural reference. This matches the single structural reference returned
1806 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1810 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1811 needs to match any other type at all we need to manually clear the
1815 *) Changes to the "openssl engine" utility to include;
1816 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1817 about an ENGINE's available control commands.
1818 - executing control commands from command line arguments using the
1819 '-pre' and '-post' switches. '-post' is only used if '-t' is
1820 specified and the ENGINE is successfully initialised. The syntax for
1821 the individual commands are colon-separated, for example;
1822 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1825 *) New dynamic control command support for ENGINEs. ENGINEs can now
1826 declare their own commands (numbers), names (strings), descriptions,
1827 and input types for run-time discovery by calling applications. A
1828 subset of these commands are implicitly classed as "executable"
1829 depending on their input type, and only these can be invoked through
1830 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1831 can be based on user input, config files, etc). The distinction is
1832 that "executable" commands cannot return anything other than a boolean
1833 result and can only support numeric or string input, whereas some
1834 discoverable commands may only be for direct use through
1835 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1836 pointers, or other custom uses. The "executable" commands are to
1837 support parameterisations of ENGINE behaviour that can be
1838 unambiguously defined by ENGINEs and used consistently across any
1839 OpenSSL-based application. Commands have been added to all the
1840 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1841 control over shared-library paths without source code alterations.
1844 *) Changed all ENGINE implementations to dynamically allocate their
1845 ENGINEs rather than declaring them statically. Apart from this being
1846 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1847 this also allows the implementations to compile without using the
1848 internal engine_int.h header.
1851 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1852 'const' value. Any code that should be able to modify a RAND_METHOD
1853 should already have non-const pointers to it (ie. they should only
1854 modify their own ones).
1857 *) Made a variety of little tweaks to the ENGINE code.
1858 - "atalla" and "ubsec" string definitions were moved from header files
1859 to C code. "nuron" string definitions were placed in variables
1860 rather than hard-coded - allowing parameterisation of these values
1861 later on via ctrl() commands.
1862 - Removed unused "#if 0"'d code.
1863 - Fixed engine list iteration code so it uses ENGINE_free() to release
1864 structural references.
1865 - Constified the RAND_METHOD element of ENGINE structures.
1866 - Constified various get/set functions as appropriate and added
1867 missing functions (including a catch-all ENGINE_cpy that duplicates
1868 all ENGINE values onto a new ENGINE except reference counts/state).
1869 - Removed NULL parameter checks in get/set functions. Setting a method
1870 or function to NULL is a way of cancelling out a previously set
1871 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1872 and doesn't justify the extra error symbols and code.
1873 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1874 flags from engine_int.h to engine.h.
1875 - Changed prototypes for ENGINE handler functions (init(), finish(),
1876 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1879 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1880 to the algorithm using long division. The binary algorithm can be
1881 used only if the modulus is odd. On 32-bit systems, it is faster
1882 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1883 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1884 up to 450 bits. In 64-bit environments, the binary algorithm
1885 appears to be advantageous for much longer moduli; here we use it
1886 for moduli up to 2048 bits.
1889 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1890 could not support the combine flag in choice fields.
1893 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1894 extensions from a certificate request to the certificate.
1897 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1898 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1899 file: this allows the display of the certificate about to be
1900 signed to be customised, to allow certain fields to be included
1901 or excluded and extension details. The old system didn't display
1902 multicharacter strings properly, omitted fields not in the policy
1903 and couldn't display additional details such as extensions.
1906 *) Function EC_POINTs_mul for multiple scalar multiplication
1907 of an arbitrary number of elliptic curve points
1908 \sum scalars[i]*points[i],
1909 optionally including the generator defined for the EC_GROUP:
1910 scalar*generator + \sum scalars[i]*points[i].
1912 EC_POINT_mul is a simple wrapper function for the typical case
1913 that the point list has just one item (besides the optional
1917 *) First EC_METHODs for curves over GF(p):
1919 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1920 operations and provides various method functions that can also
1921 operate with faster implementations of modular arithmetic.
1923 EC_GFp_mont_method() reuses most functions that are part of
1924 EC_GFp_simple_method, but uses Montgomery arithmetic.
1926 [Bodo Moeller; point addition and point doubling
1927 implementation directly derived from source code provided by
1928 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1930 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1931 crypto/ec/ec_lib.c):
1933 Curves are EC_GROUP objects (with an optional group generator)
1934 based on EC_METHODs that are built into the library.
1936 Points are EC_POINT objects based on EC_GROUP objects.
1938 Most of the framework would be able to handle curves over arbitrary
1939 finite fields, but as there are no obvious types for fields other
1940 than GF(p), some functions are limited to that for now.
1943 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1944 that the file contains a complete HTTP response.
1947 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1948 change the def and num file printf format specifier from "%-40sXXX"
1949 to "%-39s XXX". The latter will always guarantee a space after the
1950 field while the former will cause them to run together if the field
1951 is 40 of more characters long.
1954 *) Constify the cipher and digest 'method' functions and structures
1955 and modify related functions to take constant EVP_MD and EVP_CIPHER
1959 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1960 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1963 *) Modify EVP_Digest*() routines so they now return values. Although the
1964 internal software routines can never fail additional hardware versions
1968 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1970 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1971 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1974 ERR_R_NESTED_ASN1_ERROR
1976 ERR_R_MISSING_ASN1_EOS
1977 were 4 .. 9, conflicting with
1978 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1980 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1981 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1983 Add new error code 'ERR_R_INTERNAL_ERROR'.
1986 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1990 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1991 sets the subject name for a new request or supersedes the
1992 subject name in a given request. Formats that can be parsed are
1993 'CN=Some Name, OU=myOU, C=IT'
1995 'CN=Some Name/OU=myOU/C=IT'.
1997 Add options '-batch' and '-verbose' to 'openssl req'.
1998 [Massimiliano Pala <madwolf@hackmasters.net>]
2000 *) Introduce the possibility to access global variables through
2001 functions on platform were that's the best way to handle exporting
2002 global variables in shared libraries. To enable this functionality,
2003 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2004 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2005 is normally done by Configure or something similar).
2007 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2008 in the source file (foo.c) like this:
2010 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2011 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2013 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2014 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2016 OPENSSL_DECLARE_GLOBAL(int,foo);
2017 #define foo OPENSSL_GLOBAL_REF(foo)
2018 OPENSSL_DECLARE_GLOBAL(double,bar);
2019 #define bar OPENSSL_GLOBAL_REF(bar)
2021 The #defines are very important, and therefore so is including the
2022 header file everywhere where the defined globals are used.
2024 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2025 of ASN.1 items, but that structure is a bit different.
2027 The largest change is in util/mkdef.pl which has been enhanced with
2028 better and easier to understand logic to choose which symbols should
2029 go into the Windows .def files as well as a number of fixes and code
2030 cleanup (among others, algorithm keywords are now sorted
2031 lexicographically to avoid constant rewrites).
2034 *) In BN_div() keep a copy of the sign of 'num' before writing the
2035 result to 'rm' because if rm==num the value will be overwritten
2036 and produce the wrong result if 'num' is negative: this caused
2037 problems with BN_mod() and BN_nnmod().
2040 *) Function OCSP_request_verify(). This checks the signature on an
2041 OCSP request and verifies the signer certificate. The signer
2042 certificate is just checked for a generic purpose and OCSP request
2046 *) Add OCSP_check_validity() function to check the validity of OCSP
2047 responses. OCSP responses are prepared in real time and may only
2048 be a few seconds old. Simply checking that the current time lies
2049 between thisUpdate and nextUpdate max reject otherwise valid responses
2050 caused by either OCSP responder or client clock inaccuracy. Instead
2051 we allow thisUpdate and nextUpdate to fall within a certain period of
2052 the current time. The age of the response can also optionally be
2053 checked. Two new options -validity_period and -status_age added to
2057 *) If signature or public key algorithm is unrecognized print out its
2058 OID rather that just UNKNOWN.
2061 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2062 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2063 ID to be generated from the issuer certificate alone which can then be
2064 passed to OCSP_id_issuer_cmp().
2067 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2068 ASN1 modules to export functions returning ASN1_ITEM pointers
2069 instead of the ASN1_ITEM structures themselves. This adds several
2070 new macros which allow the underlying ASN1 function/structure to
2071 be accessed transparently. As a result code should not use ASN1_ITEM
2072 references directly (such as &X509_it) but instead use the relevant
2073 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2074 use of the new ASN1 code on platforms where exporting structures
2075 is problematical (for example in shared libraries) but exporting
2076 functions returning pointers to structures is not.
2079 *) Add support for overriding the generation of SSL/TLS session IDs.
2080 These callbacks can be registered either in an SSL_CTX or per SSL.
2081 The purpose of this is to allow applications to control, if they wish,
2082 the arbitrary values chosen for use as session IDs, particularly as it
2083 can be useful for session caching in multiple-server environments. A
2084 command-line switch for testing this (and any client code that wishes
2085 to use such a feature) has been added to "s_server".
2086 [Geoff Thorpe, Lutz Jaenicke]
2088 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2089 of the form '#if defined(...) || defined(...) || ...' and
2090 '#if !defined(...) && !defined(...) && ...'. This also avoids
2091 the growing number of special cases it was previously handling.
2094 *) Make all configuration macros available for application by making
2095 sure they are available in opensslconf.h, by giving them names starting
2096 with "OPENSSL_" to avoid conflicts with other packages and by making
2097 sure e_os2.h will cover all platform-specific cases together with
2099 Additionally, it is now possible to define configuration/platform-
2100 specific names (called "system identities"). In the C code, these
2101 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2102 macro with the name beginning with "OPENSSL_SYS_", which is determined
2103 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2107 *) New option -set_serial to 'req' and 'x509' this allows the serial
2108 number to use to be specified on the command line. Previously self
2109 signed certificates were hard coded with serial number 0 and the
2110 CA options of 'x509' had to use a serial number in a file which was
2114 *) New options to 'ca' utility to support V2 CRL entry extensions.
2115 Currently CRL reason, invalidity date and hold instruction are
2116 supported. Add new CRL extensions to V3 code and some new objects.
2119 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2120 disable standard block padding (aka PKCS#5 padding) in the EVP
2121 API, which was previously mandatory. This means that the data is
2122 not padded in any way and so the total length much be a multiple
2123 of the block size, otherwise an error occurs.
2126 *) Initial (incomplete) OCSP SSL support.
2129 *) New function OCSP_parse_url(). This splits up a URL into its host,
2130 port and path components: primarily to parse OCSP URLs. New -url
2131 option to ocsp utility.
2134 *) New nonce behavior. The return value of OCSP_check_nonce() now
2135 reflects the various checks performed. Applications can decide
2136 whether to tolerate certain situations such as an absent nonce
2137 in a response when one was present in a request: the ocsp application
2138 just prints out a warning. New function OCSP_add1_basic_nonce()
2139 this is to allow responders to include a nonce in a response even if
2140 the request is nonce-less.
2143 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2144 skipped when using openssl x509 multiple times on a single input file,
2145 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2148 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2149 set string type: to handle setting ASN1_TIME structures. Fix ca
2150 utility to correctly initialize revocation date of CRLs.
2153 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2154 the clients preferred ciphersuites and rather use its own preferences.
2155 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2156 Internet Explorer by ensuring unchanged hash method during stepup.
2157 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2160 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2161 to aes and add a new 'exist' option to print out symbols that don't
2165 *) Additional options to ocsp utility to allow flags to be set and
2166 additional certificates supplied.
2169 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2170 OCSP client a number of certificate to only verify the response
2174 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2175 handle the new API. Currently only ECB, CBC modes supported. Add new
2178 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2179 Encryption Standard (AES) Ciphersuites for Transport Layer
2180 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2181 not enabled by default and were not part of the "ALL" ciphersuite
2182 alias because they were not yet official; they could be
2183 explicitly requested by specifying the "AESdraft" ciphersuite
2184 group alias. In the final release of OpenSSL 0.9.7, the group
2185 alias is called "AES" and is part of "ALL".)
2186 [Ben Laurie, Steve Henson, Bodo Moeller]
2188 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2189 request to response.
2192 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2193 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2194 extract information from a certificate request. OCSP_response_create()
2195 creates a response and optionally adds a basic response structure.
2196 OCSP_basic_add1_status() adds a complete single response to a basic
2197 response and returns the OCSP_SINGLERESP structure just added (to allow
2198 extensions to be included for example). OCSP_basic_add1_cert() adds a
2199 certificate to a basic response and OCSP_basic_sign() signs a basic
2200 response with various flags. New helper functions ASN1_TIME_check()
2201 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2202 (converts ASN1_TIME to GeneralizedTime).
2205 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2206 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2207 structure from a certificate. X509_pubkey_digest() digests the public_key
2208 contents: this is used in various key identifiers.
2211 *) Make sk_sort() tolerate a NULL argument.
2212 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2214 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2215 passed by the function are trusted implicitly. If any of them signed the
2216 response then it is assumed to be valid and is not verified.
2219 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2220 to data. This was previously part of the PKCS7 ASN1 code. This
2221 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2222 [Steve Henson, reported by Kenneth R. Robinette
2223 <support@securenetterm.com>]
2225 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2226 routines: without these tracing memory leaks is very painful.
2227 Fix leaks in PKCS12 and PKCS7 routines.
2230 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2231 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2232 effectively meant GeneralizedTime would never be used. Now it
2233 is initialised to -1 but X509_time_adj() now has to check the value
2234 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2235 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2236 [Steve Henson, reported by Kenneth R. Robinette
2237 <support@securenetterm.com>]
2239 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2240 result in a zero length in the ASN1_INTEGER structure which was
2241 not consistent with the structure when d2i_ASN1_INTEGER() was used
2242 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2243 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2244 where it did not print out a minus for negative ASN1_INTEGER.
2247 *) Add summary printout to ocsp utility. The various functions which
2248 convert status values to strings have been renamed to:
2249 OCSP_response_status_str(), OCSP_cert_status_str() and
2250 OCSP_crl_reason_str() and are no longer static. New options
2251 to verify nonce values and to disable verification. OCSP response
2252 printout format cleaned up.
2255 *) Add additional OCSP certificate checks. These are those specified
2256 in RFC2560. This consists of two separate checks: the CA of the
2257 certificate being checked must either be the OCSP signer certificate
2258 or the issuer of the OCSP signer certificate. In the latter case the
2259 OCSP signer certificate must contain the OCSP signing extended key
2260 usage. This check is performed by attempting to match the OCSP
2261 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2262 in the OCSP_CERTID structures of the response.
2265 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2266 and related routines. This uses the standard OpenSSL certificate
2267 verify routines to perform initial checks (just CA validity) and
2268 to obtain the certificate chain. Then additional checks will be
2269 performed on the chain. Currently the root CA is checked to see
2270 if it is explicitly trusted for OCSP signing. This is used to set
2271 a root CA as a global signing root: that is any certificate that
2272 chains to that CA is an acceptable OCSP signing certificate.
2275 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2276 extensions from a separate configuration file.
2277 As when reading extensions from the main configuration file,
2278 the '-extensions ...' option may be used for specifying the
2280 [Massimiliano Pala <madwolf@comune.modena.it>]
2282 *) New OCSP utility. Allows OCSP requests to be generated or
2283 read. The request can be sent to a responder and the output
2284 parsed, outputed or printed in text form. Not complete yet:
2285 still needs to check the OCSP response validity.
2288 *) New subcommands for 'openssl ca':
2289 'openssl ca -status <serial>' prints the status of the cert with
2290 the given serial number (according to the index file).
2291 'openssl ca -updatedb' updates the expiry status of certificates
2293 [Massimiliano Pala <madwolf@comune.modena.it>]
2295 *) New '-newreq-nodes' command option to CA.pl. This is like
2296 '-newreq', but calls 'openssl req' with the '-nodes' option
2297 so that the resulting key is not encrypted.
2298 [Damien Miller <djm@mindrot.org>]
2300 *) New configuration for the GNU Hurd.
2301 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2303 *) Initial code to implement OCSP basic response verify. This
2304 is currently incomplete. Currently just finds the signer's
2305 certificate and verifies the signature on the response.
2308 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2309 value of OPENSSLDIR. This is available via the new '-d' option
2310 to 'openssl version', and is also included in 'openssl version -a'.
2313 *) Allowing defining memory allocation callbacks that will be given
2314 file name and line number information in additional arguments
2315 (a const char* and an int). The basic functionality remains, as
2316 well as the original possibility to just replace malloc(),
2317 realloc() and free() by functions that do not know about these
2318 additional arguments. To register and find out the current
2319 settings for extended allocation functions, the following
2320 functions are provided:
2322 CRYPTO_set_mem_ex_functions
2323 CRYPTO_set_locked_mem_ex_functions
2324 CRYPTO_get_mem_ex_functions
2325 CRYPTO_get_locked_mem_ex_functions
2327 These work the same way as CRYPTO_set_mem_functions and friends.
2328 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2329 extended allocation function is enabled.
2330 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2331 a conventional allocation function is enabled.
2332 [Richard Levitte, Bodo Moeller]
2334 *) Finish off removing the remaining LHASH function pointer casts.
2335 There should no longer be any prototype-casting required when using
2336 the LHASH abstraction, and any casts that remain are "bugs". See
2337 the callback types and macros at the head of lhash.h for details
2338 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2341 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2342 If /dev/[u]random devices are not available or do not return enough
2343 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2345 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2346 /etc/entropy will be queried once each in this sequence, quering stops
2347 when enough entropy was collected without querying more sockets.
2350 *) Change the Unix RAND_poll() variant to be able to poll several
2351 random devices, as specified by DEVRANDOM, until a sufficient amount
2352 of data has been collected. We spend at most 10 ms on each file
2353 (select timeout) and read in non-blocking mode. DEVRANDOM now
2354 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2355 (previously it was just the string "/dev/urandom"), so on typical
2356 platforms the 10 ms delay will never occur.
2357 Also separate out the Unix variant to its own file, rand_unix.c.
2358 For VMS, there's a currently-empty rand_vms.c.
2361 *) Move OCSP client related routines to ocsp_cl.c. These
2362 provide utility functions which an application needing
2363 to issue a request to an OCSP responder and analyse the
2364 response will typically need: as opposed to those which an
2365 OCSP responder itself would need which will be added later.
2367 OCSP_request_sign() signs an OCSP request with an API similar
2368 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2369 response. OCSP_response_get1_basic() extracts basic response
2370 from response. OCSP_resp_find_status(): finds and extracts status
2371 information from an OCSP_CERTID structure (which will be created
2372 when the request structure is built). These are built from lower
2373 level functions which work on OCSP_SINGLERESP structures but
2374 wont normally be used unless the application wishes to examine
2375 extensions in the OCSP response for example.
2377 Replace nonce routines with a pair of functions.
2378 OCSP_request_add1_nonce() adds a nonce value and optionally
2379 generates a random value. OCSP_check_nonce() checks the
2380 validity of the nonce in an OCSP response.
2383 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2384 This doesn't copy the supplied OCSP_CERTID and avoids the
2385 need to free up the newly created id. Change return type
2386 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2387 This can then be used to add extensions to the request.
2388 Deleted OCSP_request_new(), since most of its functionality
2389 is now in OCSP_REQUEST_new() (and the case insensitive name
2390 clash) apart from the ability to set the request name which
2391 will be added elsewhere.
2394 *) Update OCSP API. Remove obsolete extensions argument from
2395 various functions. Extensions are now handled using the new
2396 OCSP extension code. New simple OCSP HTTP function which
2397 can be used to send requests and parse the response.
2400 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2401 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2402 uses the special reorder version of SET OF to sort the attributes
2403 and reorder them to match the encoded order. This resolves a long
2404 standing problem: a verify on a PKCS7 structure just after signing
2405 it used to fail because the attribute order did not match the
2406 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2407 it uses the received order. This is necessary to tolerate some broken
2408 software that does not order SET OF. This is handled by encoding
2409 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2410 to produce the required SET OF.
2413 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2414 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2415 files to get correct declarations of the ASN.1 item variables.
2418 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2419 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2420 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2421 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2422 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2423 ASN1_ITEM and no wrapper functions.
2426 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2427 replace the old function pointer based I/O routines. Change most of
2428 the *_d2i_bio() and *_d2i_fp() functions to use these.
2431 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2432 lines, recognice more "algorithms" that can be deselected, and make
2433 it complain about algorithm deselection that isn't recognised.
2436 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2437 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2438 to use new functions. Add NO_ASN1_OLD which can be set to remove
2439 some old style ASN1 functions: this can be used to determine if old
2440 code will still work when these eventually go away.
2443 *) New extension functions for OCSP structures, these follow the
2444 same conventions as certificates and CRLs.
2447 *) New function X509V3_add1_i2d(). This automatically encodes and
2448 adds an extension. Its behaviour can be customised with various
2449 flags to append, replace or delete. Various wrappers added for
2450 certifcates and CRLs.
2453 *) Fix to avoid calling the underlying ASN1 print routine when
2454 an extension cannot be parsed. Correct a typo in the
2455 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2458 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2459 entries for variables.
2462 *) Add functionality to apps/openssl.c for detecting locking
2463 problems: As the program is single-threaded, all we have
2464 to do is register a locking callback using an array for
2465 storing which locks are currently held by the program.
2468 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2469 SSL_get_ex_data_X509_STORE_idx(), which is used in
2470 ssl_verify_cert_chain() and thus can be called at any time
2471 during TLS/SSL handshakes so that thread-safety is essential.
2472 Unfortunately, the ex_data design is not at all suited
2473 for multi-threaded use, so it probably should be abolished.
2476 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2477 [Broadcom, tweaked and integrated by Geoff Thorpe]
2479 *) Move common extension printing code to new function
2480 X509V3_print_extensions(). Reorganise OCSP print routines and
2481 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2484 *) New function X509_signature_print() to remove duplication in some
2488 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2489 set (this was treated exactly the same as SET OF previously). This
2490 is used to reorder the STACK representing the structure to match the
2491 encoding. This will be used to get round a problem where a PKCS7
2492 structure which was signed could not be verified because the STACK
2493 order did not reflect the encoded order.
2496 *) Reimplement the OCSP ASN1 module using the new code.
2499 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2500 for its ASN1 operations. The old style function pointers still exist
2501 for now but they will eventually go away.
2504 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2505 completely replaces the old ASN1 functionality with a table driven
2506 encoder and decoder which interprets an ASN1_ITEM structure describing
2507 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2508 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2509 has also been converted to the new form.
2512 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2513 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2514 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2515 for negative moduli.
2518 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2519 of not touching the result's sign bit.
2522 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2526 *) Changed the LHASH code to use prototypes for callbacks, and created
2527 macros to declare and implement thin (optionally static) functions
2528 that provide type-safety and avoid function pointer casting for the
2529 type-specific callbacks.
2532 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2534 [Veers Staats <staatsvr@asc.hpc.mil>,
2535 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2537 *) Reformat the FAQ so the different questions and answers can be divided
2538 in sections depending on the subject.
2541 *) Have the zlib compression code load ZLIB.DLL dynamically under
2545 *) New function BN_mod_sqrt for computing square roots modulo a prime
2546 (using the probabilistic Tonelli-Shanks algorithm unless
2547 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2548 be handled deterministically).
2549 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2551 *) Make BN_mod_inverse faster by explicitly handling small quotients
2552 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2553 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2556 *) New function BN_kronecker.
2559 *) Fix BN_gcd so that it works on negative inputs; the result is
2560 positive unless both parameters are zero.
2561 Previously something reasonably close to an infinite loop was
2562 possible because numbers could be growing instead of shrinking
2563 in the implementation of Euclid's algorithm.
2566 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2567 sign of the number in question.
2569 Fix BN_is_word(a,w) to work correctly for w == 0.
2571 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2572 because its test if the absolute value of 'a' equals 'w'.
2573 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2574 it exists mostly for use in the implementations of BN_is_zero(),
2575 BN_is_one(), and BN_is_word().
2578 *) New function BN_swap.
2581 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2582 the exponentiation functions are more likely to produce reasonable
2583 results on negative inputs.
2586 *) Change BN_mod_mul so that the result is always non-negative.
2587 Previously, it could be negative if one of the factors was negative;
2588 I don't think anyone really wanted that behaviour.
2591 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2592 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2593 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2594 and add new functions:
2603 BN_mod_lshift1_quick
2607 These functions always generate non-negative results.
2609 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2610 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2612 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2613 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2614 be reduced modulo m.
2615 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2618 The following entry accidentily appeared in the CHANGES file
2619 distributed with OpenSSL 0.9.7. The modifications described in
2620 it do *not* apply to OpenSSL 0.9.7.
2622 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2623 was actually never needed) and in BN_mul(). The removal in BN_mul()
2624 required a small change in bn_mul_part_recursive() and the addition
2625 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2626 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2627 bn_sub_words() and bn_add_words() except they take arrays with
2632 *) In 'openssl passwd', verify passwords read from the terminal
2633 unless the '-salt' option is used (which usually means that
2634 verification would just waste user's time since the resulting
2635 hash is going to be compared with some given password hash)
2636 or the new '-noverify' option is used.
2638 This is an incompatible change, but it does not affect
2639 non-interactive use of 'openssl passwd' (passwords on the command
2640 line, '-stdin' option, '-in ...' option) and thus should not
2644 *) Remove all references to RSAref, since there's no more need for it.
2647 *) Make DSO load along a path given through an environment variable
2648 (SHLIB_PATH) with shl_load().
2651 *) Constify the ENGINE code as a result of BIGNUM constification.
2652 Also constify the RSA code and most things related to it. In a
2653 few places, most notable in the depth of the ASN.1 code, ugly
2654 casts back to non-const were required (to be solved at a later
2658 *) Make it so the openssl application has all engines loaded by default.
2661 *) Constify the BIGNUM routines a little more.
2664 *) Add the following functions:
2666 ENGINE_load_cswift()
2668 ENGINE_load_atalla()
2670 ENGINE_load_builtin_engines()
2672 That way, an application can itself choose if external engines that
2673 are built-in in OpenSSL shall ever be used or not. The benefit is
2674 that applications won't have to be linked with libdl or other dso
2675 libraries unless it's really needed.
2677 Changed 'openssl engine' to load all engines on demand.
2678 Changed the engine header files to avoid the duplication of some
2679 declarations (they differed!).
2682 *) 'openssl engine' can now list capabilities.
2685 *) Better error reporting in 'openssl engine'.
2688 *) Never call load_dh_param(NULL) in s_server.
2691 *) Add engine application. It can currently list engines by name and
2692 identity, and test if they are actually available.
2695 *) Improve RPM specification file by forcing symbolic linking and making
2696 sure the installed documentation is also owned by root.root.
2697 [Damien Miller <djm@mindrot.org>]
2699 *) Give the OpenSSL applications more possibilities to make use of
2700 keys (public as well as private) handled by engines.
2703 *) Add OCSP code that comes from CertCo.
2706 *) Add VMS support for the Rijndael code.
2709 *) Added untested support for Nuron crypto accelerator.
2712 *) Add support for external cryptographic devices. This code was
2713 previously distributed separately as the "engine" branch.
2714 [Geoff Thorpe, Richard Levitte]
2716 *) Rework the filename-translation in the DSO code. It is now possible to
2717 have far greater control over how a "name" is turned into a filename
2718 depending on the operating environment and any oddities about the
2719 different shared library filenames on each system.
2722 *) Support threads on FreeBSD-elf in Configure.
2725 *) Fix for SHA1 assembly problem with MASM: it produces
2726 warnings about corrupt line number information when assembling
2727 with debugging information. This is caused by the overlapping
2729 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2732 NCONF_get_number() has no error checking at all. As a replacement,
2733 NCONF_get_number_e() is defined (_e for "error checking") and is
2734 promoted strongly. The old NCONF_get_number is kept around for
2735 binary backward compatibility.
2736 Make it possible for methods to load from something other than a BIO,
2737 by providing a function pointer that is given a name instead of a BIO.
2738 For example, this could be used to load configuration data from an
2742 *) Fix for non blocking accept BIOs. Added new I/O special reason
2743 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2744 with non blocking I/O was not possible because no retry code was
2745 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2749 *) Added the beginnings of Rijndael support.
2752 *) Fix for bug in DirectoryString mask setting. Add support for
2753 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2754 to allow certificate printing to more controllable, additional
2755 'certopt' option to 'x509' to allow new printing options to be
2759 *) Clean old EAY MD5 hack from e_os.h.
2762 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2764 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2765 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
2766 [Joe Orton, Steve Henson]
2768 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2770 *) Fix additional bug revealed by the NISCC test suite:
2772 Stop bug triggering large recursion when presented with
2773 certain ASN.1 tags (CAN-2003-0851)
2776 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2778 *) Fix various bugs revealed by running the NISCC test suite:
2780 Stop out of bounds reads in the ASN1 code when presented with
2781 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2783 If verify callback ignores invalid public key errors don't try to check
2784 certificate signature with the NULL public key.
2788 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2789 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2793 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2794 extra data after the compression methods not only for TLS 1.0
2795 but also for SSL 3.0 (as required by the specification).
2796 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2798 *) Change X509_certificate_type() to mark the key as exported/exportable
2799 when it's 512 *bits* long, not 512 bytes.
2802 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2804 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2805 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2806 a protocol version number mismatch like a decryption error
2807 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2810 *) Turn on RSA blinding by default in the default implementation
2811 to avoid a timing attack. Applications that don't want it can call
2812 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2813 They would be ill-advised to do so in most cases.
2814 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2816 *) Change RSA blinding code so that it works when the PRNG is not
2817 seeded (in this case, the secret RSA exponent is abused as
2818 an unpredictable seed -- if it is not unpredictable, there
2819 is no point in blinding anyway). Make RSA blinding thread-safe
2820 by remembering the creator's thread ID in rsa->blinding and
2821 having all other threads use local one-time blinding factors
2822 (this requires more computation than sharing rsa->blinding, but
2823 avoids excessive locking; and if an RSA object is not shared
2824 between threads, blinding will still be very fast).
2827 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2829 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2830 via timing by performing a MAC computation even if incorrrect
2831 block cipher padding has been found. This is a countermeasure
2832 against active attacks where the attacker has to distinguish
2833 between bad padding and a MAC verification error. (CAN-2003-0078)
2835 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2836 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2837 Martin Vuagnoux (EPFL, Ilion)]
2839 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2841 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2842 memory from it's contents. This is done with a counter that will
2843 place alternating values in each byte. This can be used to solve
2844 two issues: 1) the removal of calls to memset() by highly optimizing
2845 compilers, and 2) cleansing with other values than 0, since those can
2846 be read through on certain media, for example a swap space on disk.
2849 *) Bugfix: client side session caching did not work with external caching,
2850 because the session->cipher setting was not restored when reloading
2851 from the external cache. This problem was masked, when
2852 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2853 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2856 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2857 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2858 [Zeev Lieber <zeev-l@yahoo.com>]
2860 *) Undo an undocumented change introduced in 0.9.6e which caused
2861 repeated calls to OpenSSL_add_all_ciphers() and
2862 OpenSSL_add_all_digests() to be ignored, even after calling
2866 *) Change the default configuration reader to deal with last line not
2867 being properly terminated.
2870 *) Change X509_NAME_cmp() so it applies the special rules on handling
2871 DN values that are of type PrintableString, as well as RDNs of type
2872 emailAddress where the value has the type ia5String.
2873 [stefank@valicert.com via Richard Levitte]
2875 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2876 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2877 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2878 the bitwise-OR of the two for use by the majority of applications
2879 wanting this behaviour, and update the docs. The documented
2880 behaviour and actual behaviour were inconsistent and had been
2881 changing anyway, so this is more a bug-fix than a behavioural
2883 [Geoff Thorpe, diagnosed by Nadav Har'El]
2885 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2886 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2889 *) Fix initialization code race conditions in
2890 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2891 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2892 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2893 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2894 ssl2_get_cipher_by_char(),
2895 ssl3_get_cipher_by_char().
2896 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2898 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2899 the cached sessions are flushed, as the remove_cb() might use ex_data
2900 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2901 (see [openssl.org #212]).
2902 [Geoff Thorpe, Lutz Jaenicke]
2904 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2905 length, instead of the encoding length to d2i_ASN1_OBJECT.
2908 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2910 *) [In 0.9.6g-engine release:]
2911 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2912 [Lynn Gazis <lgazis@rainbow.com>]
2914 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2916 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2917 and get fix the header length calculation.
2918 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2919 Alon Kantor <alonk@checkpoint.com> (and others),
2922 *) Use proper error handling instead of 'assertions' in buffer
2923 overflow checks added in 0.9.6e. This prevents DoS (the
2924 assertions could call abort()).
2925 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2927 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2929 *) Add various sanity checks to asn1_get_length() to reject
2930 the ASN1 length bytes if they exceed sizeof(long), will appear
2931 negative or the content length exceeds the length of the
2933 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2935 *) Fix cipher selection routines: ciphers without encryption had no flags
2936 for the cipher strength set and where therefore not handled correctly
2937 by the selection routines (PR #130).
2940 *) Fix EVP_dsa_sha macro.
2944 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2945 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2946 that was added in OpenSSL 0.9.6d.
2948 As the countermeasure turned out to be incompatible with some
2949 broken SSL implementations, the new option is part of SSL_OP_ALL.
2950 SSL_OP_ALL is usually employed when compatibility with weird SSL
2951 implementations is desired (e.g. '-bugs' option to 's_client' and
2952 's_server'), so the new option is automatically set in many
2956 *) Changes in security patch:
2958 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2959 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2960 Air Force Materiel Command, USAF, under agreement number
2963 *) Add various sanity checks to asn1_get_length() to reject
2964 the ASN1 length bytes if they exceed sizeof(long), will appear
2965 negative or the content length exceeds the length of the
2966 supplied buffer. (CAN-2002-0659)
2967 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2969 *) Assertions for various potential buffer overflows, not known to
2971 [Ben Laurie (CHATS)]
2973 *) Various temporary buffers to hold ASCII versions of integers were
2974 too small for 64 bit platforms. (CAN-2002-0655)
2975 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2977 *) Remote buffer overflow in SSL3 protocol - an attacker could
2978 supply an oversized session ID to a client. (CAN-2002-0656)
2979 [Ben Laurie (CHATS)]
2981 *) Remote buffer overflow in SSL2 protocol - an attacker could
2982 supply an oversized client master key. (CAN-2002-0656)
2983 [Ben Laurie (CHATS)]
2985 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2987 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2988 encoded as NULL) with id-dsa-with-sha1.
2989 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2991 *) Check various X509_...() return values in apps/req.c.
2992 [Nils Larsch <nla@trustcenter.de>]
2994 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2995 an end-of-file condition would erronously be flagged, when the CRLF
2996 was just at the end of a processed block. The bug was discovered when
2997 processing data through a buffering memory BIO handing the data to a
2998 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2999 <ptsekov@syntrex.com> and Nedelcho Stanev.
3002 *) Implement a countermeasure against a vulnerability recently found
3003 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3004 before application data chunks to avoid the use of known IVs
3005 with data potentially chosen by the attacker.
3008 *) Fix length checks in ssl3_get_client_hello().
3011 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3012 to prevent ssl3_read_internal() from incorrectly assuming that
3013 ssl3_read_bytes() found application data while handshake
3014 processing was enabled when in fact s->s3->in_read_app_data was
3015 merely automatically cleared during the initial handshake.
3016 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3018 *) Fix object definitions for Private and Enterprise: they were not
3019 recognized in their shortname (=lowercase) representation. Extend
3020 obj_dat.pl to issue an error when using undefined keywords instead
3021 of silently ignoring the problem (Svenning Sorensen
3022 <sss@sss.dnsalias.net>).
3025 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3026 generators, i.e. generators other than 2 and 5. (Previously, the
3027 code did not properly initialise the 'add' and 'rem' values to
3028 BN_generate_prime().)
3030 In the new general case, we do not insist that 'generator' is
3031 actually a primitive root: This requirement is rather pointless;
3032 a generator of the order-q subgroup is just as good, if not
3036 *) Map new X509 verification errors to alerts. Discovered and submitted by
3037 Tom Wu <tom@arcot.com>.
3040 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3041 returning non-zero before the data has been completely received
3042 when using non-blocking I/O.
3043 [Bodo Moeller; problem pointed out by John Hughes]
3045 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3046 [Ben Laurie, Lutz Jaenicke]
3048 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3049 Yoram Zahavi <YoramZ@gilian.com>).
3052 *) Add information about CygWin 1.3 and on, and preserve proper
3053 configuration for the versions before that.
3054 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3056 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3057 check whether we deal with a copy of a session and do not delete from
3058 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3059 <izhar@checkpoint.com>.
3062 *) Do not store session data into the internal session cache, if it
3063 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3064 flag is set). Proposed by Aslam <aslam@funk.com>.
3067 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3071 *) [In 0.9.6d-engine release:]
3072 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3073 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3075 *) Add the configuration target linux-s390x.
3076 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3078 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3079 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3080 variable as an indication that a ClientHello message has been
3081 received. As the flag value will be lost between multiple
3082 invocations of ssl3_accept when using non-blocking I/O, the
3083 function may not be aware that a handshake has actually taken
3084 place, thus preventing a new session from being added to the
3087 To avoid this problem, we now set s->new_session to 2 instead of
3088 using a local variable.
3089 [Lutz Jaenicke, Bodo Moeller]
3091 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3092 if the SSL_R_LENGTH_MISMATCH error is detected.
3093 [Geoff Thorpe, Bodo Moeller]
3095 *) New 'shared_ldflag' column in Configure platform table.
3098 *) Fix EVP_CIPHER_mode macro.
3099 ["Dan S. Camper" <dan@bti.net>]
3101 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3102 type, we must throw them away by setting rr->length to 0.
3103 [D P Chang <dpc@qualys.com>]
3105 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3107 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3108 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3109 worked incorrectly for those cases where range = 10..._2 and
3110 3*range is two bits longer than range.)
3113 *) Only add signing time to PKCS7 structures if it is not already
3117 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3118 OBJ_ld_ce should be OBJ_id_ce.
3119 Also some ip-pda OIDs in crypto/objects/objects.txt were
3120 incorrect (cf. RFC 3039).
3121 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3123 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3124 returns early because it has nothing to do.
3125 [Andy Schneider <andy.schneider@bjss.co.uk>]
3127 *) [In 0.9.6c-engine release:]
3128 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3129 [Andy Schneider <andy.schneider@bjss.co.uk>]
3131 *) [In 0.9.6c-engine release:]
3132 Add support for Cryptographic Appliance's keyserver technology.
3133 (Use engine 'keyclient')
3134 [Cryptographic Appliances and Geoff Thorpe]
3136 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3137 is called via tools/c89.sh because arguments have to be
3138 rearranged (all '-L' options must appear before the first object
3140 [Richard Shapiro <rshapiro@abinitio.com>]
3142 *) [In 0.9.6c-engine release:]
3143 Add support for Broadcom crypto accelerator cards, backported
3145 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3147 *) [In 0.9.6c-engine release:]
3148 Add support for SureWare crypto accelerator cards from
3149 Baltimore Technologies. (Use engine 'sureware')
3150 [Baltimore Technologies and Mark Cox]
3152 *) [In 0.9.6c-engine release:]
3153 Add support for crypto accelerator cards from Accelerated
3154 Encryption Processing, www.aep.ie. (Use engine 'aep')
3155 [AEP Inc. and Mark Cox]
3157 *) Add a configuration entry for gcc on UnixWare.
3158 [Gary Benson <gbenson@redhat.com>]
3160 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3161 messages are stored in a single piece (fixed-length part and
3162 variable-length part combined) and fix various bugs found on the way.
3165 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3166 instead. BIO_gethostbyname() does not know what timeouts are
3167 appropriate, so entries would stay in cache even when they have
3169 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3171 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3172 faced with a pathologically small ClientHello fragment that does
3173 not contain client_version: Instead of aborting with an error,
3174 simply choose the highest available protocol version (i.e.,
3175 TLS 1.0 unless it is disabled). In practice, ClientHello
3176 messages are never sent like this, but this change gives us
3177 strictly correct behaviour at least for TLS.
3180 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3181 never resets s->method to s->ctx->method when called from within
3182 one of the SSL handshake functions.
3183 [Bodo Moeller; problem pointed out by Niko Baric]
3185 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3186 (sent using the client's version number) if client_version is
3187 smaller than the protocol version in use. Also change
3188 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3189 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3190 the client will at least see that alert.
3193 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3197 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3198 client receives HelloRequest while in a handshake.
3199 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3201 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3202 should end in 'break', not 'goto end' which circuments various
3203 cleanups done in state SSL_ST_OK. But session related stuff
3204 must be disabled for SSL_ST_OK in the case that we just sent a
3207 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3208 before just sending a HelloRequest.
3209 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3211 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3212 reveal whether illegal block cipher padding was found or a MAC
3213 verification error occured. (Neither SSLerr() codes nor alerts
3214 are directly visible to potential attackers, but the information
3215 may leak via logfiles.)
3217 Similar changes are not required for the SSL 2.0 implementation
3218 because the number of padding bytes is sent in clear for SSL 2.0,
3219 and the extra bytes are just ignored. However ssl/s2_pkt.c
3220 failed to verify that the purported number of padding bytes is in
3224 *) Add OpenUNIX-8 support including shared libraries
3225 (Boyd Lynn Gerber <gerberb@zenez.com>).
3228 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3229 'wristwatch attack' using huge encoding parameters (cf.
3230 James H. Manger's CRYPTO 2001 paper). Note that the
3231 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3232 encoding parameters and hence was not vulnerable.
3235 *) BN_sqr() bug fix.
3236 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3238 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3239 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3240 followed by modular reduction.
3241 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3243 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3244 equivalent based on BN_pseudo_rand() instead of BN_rand().
3247 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3248 This function was broken, as the check for a new client hello message
3249 to handle SGC did not allow these large messages.
3250 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3253 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3256 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3257 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3260 *) Rework the configuration and shared library support for Tru64 Unix.
3261 The configuration part makes use of modern compiler features and
3262 still retains old compiler behavior for those that run older versions
3263 of the OS. The shared library support part includes a variant that
3264 uses the RPATH feature, and is available through the special
3265 configuration target "alpha-cc-rpath", which will never be selected
3267 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3269 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3270 with the same message size as in ssl3_get_certificate_request().
3271 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3272 messages might inadvertently be reject as too long.
3273 [Petr Lampa <lampa@fee.vutbr.cz>]
3275 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3278 *) Modified SSL library such that the verify_callback that has been set
3279 specificly for an SSL object with SSL_set_verify() is actually being
3280 used. Before the change, a verify_callback set with this function was
3281 ignored and the verify_callback() set in the SSL_CTX at the time of
3282 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3283 to allow the necessary settings.
3286 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3287 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3288 done automatically (in contradiction to the requirements of the C
3289 standard). This made problems when used from OpenSSH.
3292 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3293 dh->length and always used
3295 BN_rand_range(priv_key, dh->p).
3297 BN_rand_range() is not necessary for Diffie-Hellman, and this
3298 specific range makes Diffie-Hellman unnecessarily inefficient if
3299 dh->length (recommended exponent length) is much smaller than the
3300 length of dh->p. We could use BN_rand_range() if the order of
3301 the subgroup was stored in the DH structure, but we only have
3306 BN_rand(priv_key, l, ...)
3308 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3314 RSA_eay_public_encrypt
3315 RSA_eay_private_decrypt
3316 RSA_eay_private_encrypt (signing)
3317 RSA_eay_public_decrypt (signature verification)
3319 (default implementations for RSA_public_encrypt,
3320 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3321 always reject numbers >= n.
3324 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3325 to synchronize access to 'locking_thread'. This is necessary on
3326 systems where access to 'locking_thread' (an 'unsigned long'
3327 variable) is not atomic.
3330 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3331 *before* setting the 'crypto_lock_rand' flag. The previous code had
3332 a race condition if 0 is a valid thread ID.
3333 [Travis Vitek <vitek@roguewave.com>]
3335 *) Add support for shared libraries under Irix.
3336 [Albert Chin-A-Young <china@thewrittenword.com>]
3338 *) Add configuration option to build on Linux on both big-endian and
3340 [Ralf Baechle <ralf@uni-koblenz.de>]
3342 *) Add the possibility to create shared libraries on HP-UX.
3345 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3347 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3348 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3349 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3350 PRNG state recovery was possible based on the output of
3351 one PRNG request appropriately sized to gain knowledge on
3352 'md' followed by enough consecutive 1-byte PRNG requests
3353 to traverse all of 'state'.
3355 1. When updating 'md_local' (the current thread's copy of 'md')
3356 during PRNG output generation, hash all of the previous
3357 'md_local' value, not just the half used for PRNG output.
3359 2. Make the number of bytes from 'state' included into the hash
3360 independent from the number of PRNG bytes requested.
3362 The first measure alone would be sufficient to avoid
3363 Markku-Juhani's attack. (Actually it had never occurred
3364 to me that the half of 'md_local' used for chaining was the
3365 half from which PRNG output bytes were taken -- I had always
3366 assumed that the secret half would be used.) The second
3367 measure makes sure that additional data from 'state' is never
3368 mixed into 'md_local' in small portions; this heuristically
3369 further strengthens the PRNG.
3372 *) Fix crypto/bn/asm/mips3.s.
3375 *) When only the key is given to "enc", the IV is undefined. Print out
3376 an error message in this case.
3379 *) Handle special case when X509_NAME is empty in X509 printing routines.
3382 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3383 positive and less than q.
3386 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3387 used: it isn't thread safe and the add_lock_callback should handle
3389 [Paul Rose <Paul.Rose@bridge.com>]
3391 *) Verify that incoming data obeys the block size in
3392 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3396 [Ulf Möller, Bodo Möller]
3398 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3399 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3400 when fixing the server behaviour for backwards-compatible 'client
3401 hello' messages. (Note that the attack is impractical against
3402 SSL 3.0 and TLS 1.0 anyway because length and version checking
3403 means that the probability of guessing a valid ciphertext is
3404 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3407 Before 0.9.5, the countermeasure (hide the error by generating a
3408 random 'decryption result') did not work properly because
3409 ERR_clear_error() was missing, meaning that SSL_get_error() would
3410 detect the supposedly ignored error.
3412 Both problems are now fixed.
3415 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3416 (previously it was 1024).
3419 *) Fix for compatibility mode trust settings: ignore trust settings
3420 unless some valid trust or reject settings are present.
3423 *) Fix for blowfish EVP: its a variable length cipher.
3426 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3427 parameters in DSA public key structures and return an error in the
3428 DSA routines if parameters are absent.
3431 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3432 in the current directory if neither $RANDFILE nor $HOME was set.
3433 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3434 caused some confusion to Windows users who haven't defined $HOME.
3435 Thus RAND_file_name() is changed again: e_os.h can define a
3436 DEFAULT_HOME, which will be used if $HOME is not set.
3437 For Windows, we use "C:"; on other platforms, we still require
3438 environment variables.
3440 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3441 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3442 having multiple threads call RAND_poll() concurrently.
3445 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3446 combination of a flag and a thread ID variable.
3447 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3448 flag), *other* threads can enter ssleay_add_bytes without obeying
3449 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3450 that they do not hold after the first thread unsets add_do_not_lock).
3453 *) Change bctest again: '-x' expressions are not available in all
3457 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3459 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3460 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3462 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3463 the default extension for executables, if any. Also, make the perl
3464 scripts that use symlink() to test if it really exists and use "cp"
3465 if it doesn't. All this made OpenSSL compilable and installable in
3469 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3470 If SEQUENCE is length is indefinite just set c->slen to the total
3471 amount of data available.
3472 [Steve Henson, reported by shige@FreeBSD.org]
3473 [This change does not apply to 0.9.7.]
3475 *) Change bctest to avoid here-documents inside command substitution
3476 (workaround for FreeBSD /bin/sh bug).
3477 For compatibility with Ultrix, avoid shell functions (introduced
3478 in the bctest version that searches along $PATH).
3481 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3482 with des_encrypt() defined on some operating systems, like Solaris
3486 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3487 On the Importance of Eliminating Errors in Cryptographic
3488 Computations, J. Cryptology 14 (2001) 2, 101-119,
3489 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3492 *) MIPS assembler BIGNUM division bug fix.
3495 *) Disabled incorrect Alpha assembler code.
3498 *) Fix PKCS#7 decode routines so they correctly update the length
3499 after reading an EOC for the EXPLICIT tag.
3501 [This change does not apply to 0.9.7.]
3503 *) Fix bug in PKCS#12 key generation routines. This was triggered
3504 if a 3DES key was generated with a 0 initial byte. Include
3505 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3506 (but broken) behaviour.
3509 *) Enhance bctest to search for a working bc along $PATH and print
3511 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3513 *) Fix memory leaks in err.c: free err_data string if necessary;
3514 don't write to the wrong index in ERR_set_error_data.
3517 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3521 *) Replace rdtsc with _emit statements for VC++ version 5.
3522 [Jeremy Cooper <jeremy@baymoo.org>]
3524 *) Make it possible to reuse SSLv2 sessions.
3527 *) In copy_email() check for >= 0 as a return value for
3528 X509_NAME_get_index_by_NID() since 0 is a valid index.
3529 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3531 *) Avoid coredump with unsupported or invalid public keys by checking if
3532 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3533 PKCS7_verify() fails with non detached data.
3536 *) Don't use getenv in library functions when run as setuid/setgid.
3537 New function OPENSSL_issetugid().
3540 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3541 due to incorrect handling of multi-threading:
3543 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3545 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3547 3. Count how many times MemCheck_off() has been called so that
3548 nested use can be treated correctly. This also avoids
3549 inband-signalling in the previous code (which relied on the
3550 assumption that thread ID 0 is impossible).
3553 *) Add "-rand" option also to s_client and s_server.
3556 *) Fix CPU detection on Irix 6.x.
3557 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3558 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3560 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3563 [This change does not apply to 0.9.7.]
3565 *) Use the cached encoding of an X509_NAME structure rather than
3566 copying it. This is apparently the reason for the libsafe "errors"
3567 but the code is actually correct.
3570 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3571 Bleichenbacher's DSA attack.
3572 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3573 to be set and top=0 forces the highest bit to be set; top=-1 is new
3574 and leaves the highest bit random.
3575 [Ulf Moeller, Bodo Moeller]
3577 *) In the NCONF_...-based implementations for CONF_... queries
3578 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3579 a temporary CONF structure with the data component set to NULL
3580 (which gives segmentation faults in lh_retrieve).
3581 Instead, use NULL for the CONF pointer in CONF_get_string and
3582 CONF_get_number (which may use environment variables) and directly
3583 return NULL from CONF_get_section.
3586 *) Fix potential buffer overrun for EBCDIC.
3589 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3590 keyUsage if basicConstraints absent for a CA.
3593 *) Make SMIME_write_PKCS7() write mail header values with a format that
3594 is more generally accepted (no spaces before the semicolon), since
3595 some programs can't parse those values properly otherwise. Also make
3596 sure BIO's that break lines after each write do not create invalid
3600 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3601 macros previously used would not encode an empty SEQUENCE OF
3602 and break the signature.
3604 [This change does not apply to 0.9.7.]
3606 *) Zero the premaster secret after deriving the master secret in
3610 *) Add some EVP_add_digest_alias registrations (as found in
3611 OpenSSL_add_all_digests()) to SSL_library_init()
3612 aka OpenSSL_add_ssl_algorithms(). This provides improved
3613 compatibility with peers using X.509 certificates
3614 with unconventional AlgorithmIdentifier OIDs.
3617 *) Fix for Irix with NO_ASM.
3618 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3620 *) ./config script fixes.
3621 [Ulf Moeller, Richard Levitte]
3623 *) Fix 'openssl passwd -1'.
3626 *) Change PKCS12_key_gen_asc() so it can cope with non null
3627 terminated strings whose length is passed in the passlen
3628 parameter, for example from PEM callbacks. This was done
3629 by adding an extra length parameter to asc2uni().
3630 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3632 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3633 call failed, free the DSA structure.
3636 *) Fix to uni2asc() to cope with zero length Unicode strings.
3637 These are present in some PKCS#12 files.
3640 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3641 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3642 when writing a 32767 byte record.
3643 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3645 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3646 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3648 (RSA objects have a reference count access to which is protected
3649 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3650 so they are meant to be shared between threads.)
3651 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3652 "Reddie, Steven" <Steven.Reddie@ca.com>]
3654 *) Fix a deadlock in CRYPTO_mem_leaks().
3657 *) Use better test patterns in bntest.
3660 *) rand_win.c fix for Borland C.
3663 *) BN_rshift bugfix for n == 0.
3666 *) Add a 'bctest' script that checks for some known 'bc' bugs
3667 so that 'make test' does not abort just because 'bc' is broken.
3670 *) Store verify_result within SSL_SESSION also for client side to
3671 avoid potential security hole. (Re-used sessions on the client side
3672 always resulted in verify_result==X509_V_OK, not using the original
3673 result of the server certificate verification.)
3676 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3677 SSL3_RT_APPLICATION_DATA, return 0.
3678 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3682 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3683 releases, have been re-implemented by renaming the previous
3684 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3685 and ssl3_read_internal, respectively, and adding 'peek' parameters
3686 to them. The new ssl[23]_{read,peek} functions are calls to
3687 ssl[23]_read_internal with the 'peek' flag set appropriately.
3688 A 'peek' parameter has also been added to ssl3_read_bytes, which
3689 does the actual work for ssl3_read_internal.
3692 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3693 the method-specific "init()" handler. Also clean up ex_data after
3694 calling the method-specific "finish()" handler. Previously, this was
3695 happening the other way round.
3698 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3699 The previous value, 12, was not always sufficient for BN_mod_exp().
3702 *) Make sure that shared libraries get the internal name engine with
3703 the full version number and not just 0. This should mark the
3704 shared libraries as not backward compatible. Of course, this should
3705 be changed again when we can guarantee backward binary compatibility.
3708 *) Fix typo in get_cert_by_subject() in by_dir.c
3709 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3711 *) Rework the system to generate shared libraries:
3713 - Make note of the expected extension for the shared libraries and
3714 if there is a need for symbolic links from for example libcrypto.so.0
3715 to libcrypto.so.0.9.7. There is extended info in Configure for
3718 - Make as few rebuilds of the shared libraries as possible.
3720 - Still avoid linking the OpenSSL programs with the shared libraries.
3722 - When installing, install the shared libraries separately from the
3726 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3728 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3729 and not in SSL_clear because the latter is also used by the
3730 accept/connect functions; previously, the settings made by
3731 SSL_set_read_ahead would be lost during the handshake.
3732 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3734 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3735 Previously, it would create entries for disableed algorithms no
3739 *) Added several new manual pages for SSL_* function.
3742 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3744 *) In ssl23_get_client_hello, generate an error message when faced
3745 with an initial SSL 3.0/TLS record that is too small to contain the
3746 first two bytes of the ClientHello message, i.e. client_version.
3747 (Note that this is a pathologic case that probably has never happened
3748 in real life.) The previous approach was to use the version number
3749 from the record header as a substitute; but our protocol choice
3750 should not depend on that one because it is not authenticated
3751 by the Finished messages.
3754 *) More robust randomness gathering functions for Windows.
3755 [Jeffrey Altman <jaltman@columbia.edu>]
3757 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3758 not set then we don't setup the error code for issuer check errors
3759 to avoid possibly overwriting other errors which the callback does
3760 handle. If an application does set the flag then we assume it knows
3761 what it is doing and can handle the new informational codes
3765 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3766 a general "ANY" type, as such it should be able to decode anything
3767 including tagged types. However it didn't check the class so it would
3768 wrongly interpret tagged types in the same way as their universal
3769 counterpart and unknown types were just rejected. Changed so that the
3770 tagged and unknown types are handled in the same way as a SEQUENCE:
3771 that is the encoding is stored intact. There is also a new type
3772 "V_ASN1_OTHER" which is used when the class is not universal, in this
3773 case we have no idea what the actual type is so we just lump them all
3777 *) On VMS, stdout may very well lead to a file that is written to
3778 in a record-oriented fashion. That means that every write() will
3779 write a separate record, which will be read separately by the
3780 programs trying to read from it. This can be very confusing.
3782 The solution is to put a BIO filter in the way that will buffer
3783 text until a linefeed is reached, and then write everything a
3784 line at a time, so every record written will be an actual line,
3785 not chunks of lines and not (usually doesn't happen, but I've
3786 seen it once) several lines in one record. BIO_f_linebuffer() is
3789 Currently, it's a VMS-only method, because that's where it has
3790 been tested well enough.
3793 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3794 it can return incorrect results.
3795 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3796 but it was in 0.9.6-beta[12].)
3799 *) Disable the check for content being present when verifying detached
3800 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3801 include zero length content when signing messages.
3804 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3805 BIO_ctrl (for BIO pairs).
3808 *) Add DSO method for VMS.
3811 *) Bug fix: Montgomery multiplication could produce results with the
3815 *) Add RPM specification openssl.spec and modify it to build three
3816 packages. The default package contains applications, application
3817 documentation and run-time libraries. The devel package contains
3818 include files, static libraries and function documentation. The
3819 doc package contains the contents of the doc directory. The original
3820 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3823 *) Add a large number of documentation files for many SSL routines.
3824 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3826 *) Add a configuration entry for Sony News 4.
3827 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3829 *) Don't set the two most significant bits to one when generating a
3830 random number < q in the DSA library.
3833 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3834 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3835 the underlying transport is blocking) if a handshake took place.
3836 (The default behaviour is needed by applications such as s_client
3837 and s_server that use select() to determine when to use SSL_read;
3838 but for applications that know in advance when to expect data, it
3839 just makes things more complicated.)
3842 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3846 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3847 work better on such systems.
3848 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3850 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3851 Update PKCS12_parse() so it copies the friendlyName and the
3852 keyid to the certificates aux info.
3855 *) Fix bug in PKCS7_verify() which caused an infinite loop
3856 if there was more than one signature.
3857 [Sven Uszpelkat <su@celocom.de>]
3859 *) Major change in util/mkdef.pl to include extra information
3860 about each symbol, as well as presentig variables as well
3861 as functions. This change means that there's n more need
3862 to rebuild the .num files when some algorithms are excluded.
3865 *) Allow the verify time to be set by an application,
3866 rather than always using the current time.
3869 *) Phase 2 verify code reorganisation. The certificate
3870 verify code now looks up an issuer certificate by a
3871 number of criteria: subject name, authority key id
3872 and key usage. It also verifies self signed certificates
3873 by the same criteria. The main comparison function is
3874 X509_check_issued() which performs these checks.
3876 Lot of changes were necessary in order to support this
3877 without completely rewriting the lookup code.
3879 Authority and subject key identifier are now cached.
3881 The LHASH 'certs' is X509_STORE has now been replaced
3882 by a STACK_OF(X509_OBJECT). This is mainly because an
3883 LHASH can't store or retrieve multiple objects with
3884 the same hash value.
3886 As a result various functions (which were all internal
3887 use only) have changed to handle the new X509_STORE
3888 structure. This will break anything that messed round
3889 with X509_STORE internally.
3891 The functions X509_STORE_add_cert() now checks for an
3892 exact match, rather than just subject name.
3894 The X509_STORE API doesn't directly support the retrieval
3895 of multiple certificates matching a given criteria, however
3896 this can be worked round by performing a lookup first
3897 (which will fill the cache with candidate certificates)
3898 and then examining the cache for matches. This is probably
3899 the best we can do without throwing out X509_LOOKUP
3900 entirely (maybe later...).
3902 The X509_VERIFY_CTX structure has been enhanced considerably.
3904 All certificate lookup operations now go via a get_issuer()
3905 callback. Although this currently uses an X509_STORE it
3906 can be replaced by custom lookups. This is a simple way
3907 to bypass the X509_STORE hackery necessary to make this
3908 work and makes it possible to use more efficient techniques
3909 in future. A very simple version which uses a simple
3910 STACK for its trusted certificate store is also provided
3911 using X509_STORE_CTX_trusted_stack().
3913 The verify_cb() and verify() callbacks now have equivalents
3914 in the X509_STORE_CTX structure.
3916 X509_STORE_CTX also has a 'flags' field which can be used
3917 to customise the verify behaviour.
3920 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3921 excludes S/MIME capabilities.
3924 *) When a certificate request is read in keep a copy of the
3925 original encoding of the signed data and use it when outputing
3926 again. Signatures then use the original encoding rather than
3927 a decoded, encoded version which may cause problems if the
3928 request is improperly encoded.
3931 *) For consistency with other BIO_puts implementations, call
3932 buffer_write(b, ...) directly in buffer_puts instead of calling
3935 In BIO_puts, increment b->num_write as in BIO_write.
3936 [Peter.Sylvester@EdelWeb.fr]
3938 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3939 BN_zero, we may not return a BIGNUM with an array consisting of
3943 *) Avoid calling abort() from within the library when problems are
3944 detected, except if preprocessor symbols have been defined
3945 (such as REF_CHECK, BN_DEBUG etc.).
3948 *) New openssl application 'rsautl'. This utility can be
3949 used for low level RSA operations. DER public key
3950 BIO/fp routines also added.
3953 *) New Configure entry and patches for compiling on QNX 4.
3954 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3956 *) A demo state-machine implementation was sponsored by
3957 Nuron (http://www.nuron.com/) and is now available in
3958 demos/state_machine.
3961 *) New options added to the 'dgst' utility for signature
3962 generation and verification.
3965 *) Unrecognized PKCS#7 content types are now handled via a
3966 catch all ASN1_TYPE structure. This allows unsupported
3967 types to be stored as a "blob" and an application can
3968 encode and decode it manually.
3971 *) Fix various signed/unsigned issues to make a_strex.c
3973 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3975 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3976 length if passed a buffer. ASN1_INTEGER_to_BN failed
3977 if passed a NULL BN and its argument was negative.
3978 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3980 *) Modification to PKCS#7 encoding routines to output definite
3981 length encoding. Since currently the whole structures are in
3982 memory there's not real point in using indefinite length
3983 constructed encoding. However if OpenSSL is compiled with
3984 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3987 *) Added BIO_vprintf() and BIO_vsnprintf().
3990 *) Added more prefixes to parse for in the the strings written
3991 through a logging bio, to cover all the levels that are available
3992 through syslog. The prefixes are now:
3994 PANIC, EMERG, EMR => LOG_EMERG
3995 ALERT, ALR => LOG_ALERT
3996 CRIT, CRI => LOG_CRIT
3997 ERROR, ERR => LOG_ERR
3998 WARNING, WARN, WAR => LOG_WARNING
3999 NOTICE, NOTE, NOT => LOG_NOTICE
4000 INFO, INF => LOG_INFO
4001 DEBUG, DBG => LOG_DEBUG
4003 and as before, if none of those prefixes are present at the
4004 beginning of the string, LOG_ERR is chosen.
4006 On Win32, the LOG_* levels are mapped according to this:
4008 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4009 LOG_WARNING => EVENTLOG_WARNING_TYPE
4010 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4014 *) Made it possible to reconfigure with just the configuration
4015 argument "reconf" or "reconfigure". The command line arguments
4016 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4017 and are retrieved from there when reconfiguring.
4021 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4023 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4026 *) The obj_dat.pl script was messing up the sorting of object
4027 names. The reason was that it compared the quoted version
4028 of strings as a result "OCSP" > "OCSP Signing" because
4029 " > SPACE. Changed script to store unquoted versions of
4030 names and add quotes on output. It was also omitting some
4031 names from the lookup table if they were given a default
4032 value (that is if SN is missing it is given the same
4033 value as LN and vice versa), these are now added on the
4034 grounds that if an object has a name we should be able to
4035 look it up. Finally added warning output when duplicate
4036 short or long names are found.
4039 *) Changes needed for Tandem NSK.
4040 [Scott Uroff <scott@xypro.com>]
4042 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4043 RSA_padding_check_SSLv23(), special padding was never detected
4044 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4045 version rollback attacks was not effective.
4047 In s23_clnt.c, don't use special rollback-attack detection padding
4048 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4049 client; similarly, in s23_srvr.c, don't do the rollback check if
4050 SSL 2.0 is the only protocol enabled in the server.
4053 *) Make it possible to get hexdumps of unprintable data with 'openssl
4054 asn1parse'. By implication, the functions ASN1_parse_dump() and
4055 BIO_dump_indent() are added.
4058 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4059 these print out strings and name structures based on various
4060 flags including RFC2253 support and proper handling of
4061 multibyte characters. Added options to the 'x509' utility
4062 to allow the various flags to be set.
4065 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4066 Also change the functions X509_cmp_current_time() and
4067 X509_gmtime_adj() work with an ASN1_TIME structure,
4068 this will enable certificates using GeneralizedTime in validity
4069 dates to be checked.
4072 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4073 negative public key encodings) on by default,
4074 NO_NEG_PUBKEY_BUG can be set to disable it.
4077 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4078 content octets. An i2c_ASN1_OBJECT is unnecessary because
4079 the encoding can be trivially obtained from the structure.
4082 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4083 not read locks (CRYPTO_r_[un]lock).
4086 *) A first attempt at creating official support for shared
4087 libraries through configuration. I've kept it so the
4088 default is static libraries only, and the OpenSSL programs
4089 are always statically linked for now, but there are
4090 preparations for dynamic linking in place.
4091 This has been tested on Linux and Tru64.
4094 *) Randomness polling function for Win9x, as described in:
4095 Peter Gutmann, Software Generation of Practically Strong
4099 *) Fix so PRNG is seeded in req if using an already existing
4103 *) New options to smime application. -inform and -outform
4104 allow alternative formats for the S/MIME message including
4105 PEM and DER. The -content option allows the content to be
4106 specified separately. This should allow things like Netscape
4107 form signing output easier to verify.
4110 *) Fix the ASN1 encoding of tags using the 'long form'.
4113 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4114 STRING types. These convert content octets to and from the
4115 underlying type. The actual tag and length octets are
4116 already assumed to have been read in and checked. These
4117 are needed because all other string types have virtually
4118 identical handling apart from the tag. By having versions
4119 of the ASN1 functions that just operate on content octets
4120 IMPLICIT tagging can be handled properly. It also allows
4121 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4122 and ASN1_INTEGER are identical apart from the tag.
4125 *) Change the handling of OID objects as follows:
4127 - New object identifiers are inserted in objects.txt, following
4128 the syntax given in objects.README.
4129 - objects.pl is used to process obj_mac.num and create a new
4131 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4134 This is currently kind of a hack, and the perl code in objects.pl
4135 isn't very elegant, but it works as I intended. The simplest way
4136 to check that it worked correctly is to look in obj_dat.h and
4137 check the array nid_objs and make sure the objects haven't moved
4138 around (this is important!). Additions are OK, as well as
4139 consistent name changes.
4142 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4145 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4146 The given file adds to whatever has already been seeded into the
4147 random pool through the RANDFILE configuration file option or
4148 environment variable, or the default random state file.
4151 *) mkstack.pl now sorts each macro group into lexical order.
4152 Previously the output order depended on the order the files
4153 appeared in the directory, resulting in needless rewriting
4157 *) Patches to make OpenSSL compile under Win32 again. Mostly
4158 work arounds for the VC++ problem that it treats func() as
4159 func(void). Also stripped out the parts of mkdef.pl that
4160 added extra typesafe functions: these no longer exist.
4163 *) Reorganisation of the stack code. The macros are now all
4164 collected in safestack.h . Each macro is defined in terms of
4165 a "stack macro" of the form SKM_<name>(type, a, b). The
4166 DEBUG_SAFESTACK is now handled in terms of function casts,
4167 this has the advantage of retaining type safety without the
4168 use of additional functions. If DEBUG_SAFESTACK is not defined
4169 then the non typesafe macros are used instead. Also modified the
4170 mkstack.pl script to handle the new form. Needs testing to see
4171 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4172 the default if no major problems. Similar behaviour for ASN1_SET_OF
4173 and PKCS12_STACK_OF.
4176 *) When some versions of IIS use the 'NET' form of private key the
4177 key derivation algorithm is different. Normally MD5(password) is
4178 used as a 128 bit RC4 key. In the modified case
4179 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4180 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4181 as the old Netscape_RSA functions except they have an additional
4182 'sgckey' parameter which uses the modified algorithm. Also added
4183 an -sgckey command line option to the rsa utility. Thanks to
4184 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4185 algorithm to openssl-dev.
4188 *) The evp_local.h macros were using 'c.##kname' which resulted in
4189 invalid expansion on some systems (SCO 5.0.5 for example).
4190 Corrected to 'c.kname'.
4191 [Phillip Porch <root@theporch.com>]
4193 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4194 a STACK of email addresses from a certificate or request, these look
4195 in the subject name and the subject alternative name extensions and
4196 omit any duplicate addresses.
4199 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4200 This makes DSA verification about 2 % faster.
4203 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4204 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4205 plus overhead for 1024 bit moduli).
4206 This makes exponentiations about 0.5 % faster for 1024 bit
4207 exponents (as measured by "openssl speed rsa2048").
4210 *) Rename memory handling macros to avoid conflicts with other
4212 Malloc => OPENSSL_malloc
4213 Malloc_locked => OPENSSL_malloc_locked
4214 Realloc => OPENSSL_realloc
4215 Free => OPENSSL_free
4218 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4219 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4222 *) CygWin32 support.
4223 [John Jarvie <jjarvie@newsguy.com>]
4225 *) The type-safe stack code has been rejigged. It is now only compiled
4226 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4227 by default all type-specific stack functions are "#define"d back to
4228 standard stack functions. This results in more streamlined output
4229 but retains the type-safety checking possibilities of the original
4233 *) The STACK code has been cleaned up, and certain type declarations
4234 that didn't make a lot of sense have been brought in line. This has
4235 also involved a cleanup of sorts in safestack.h to more correctly
4236 map type-safe stack functions onto their plain stack counterparts.
4237 This work has also resulted in a variety of "const"ifications of
4238 lots of the code, especially "_cmp" operations which should normally
4239 be prototyped with "const" parameters anyway.
4242 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4243 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4244 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4245 where all of 'md' is used each time the PRNG is used, but 'state'
4246 is used only indexed by a cyclic counter. As entropy may not be
4247 well distributed from the beginning, 'md' is important as a
4248 chaining variable. However, the output function chains only half
4249 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4250 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4251 in all of 'state' being rewritten, with the new values depending
4252 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4255 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4256 the handshake is continued after ssl_verify_cert_chain();
4257 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4258 can lead to 'unexplainable' connection aborts later.
4259 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4261 *) Major EVP API cipher revision.
4262 Add hooks for extra EVP features. This allows various cipher
4263 parameters to be set in the EVP interface. Support added for variable
4264 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4265 setting of RC2 and RC5 parameters.
4267 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4270 Remove lots of duplicated code from the EVP library. For example *every*
4271 cipher init() function handles the 'iv' in the same way according to the
4272 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4273 for CFB and OFB modes they zero ctx->num.
4275 New functionality allows removal of S/MIME code RC2 hack.
4277 Most of the routines have the same form and so can be declared in terms
4280 By shifting this to the top level EVP_CipherInit() it can be removed from
4281 all individual ciphers. If the cipher wants to handle IVs or keys
4282 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4285 Change lots of functions like EVP_EncryptUpdate() to now return a
4286 value: although software versions of the algorithms cannot fail
4287 any installed hardware versions can.
4290 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4291 this option is set, tolerate broken clients that send the negotiated
4292 protocol version number instead of the requested protocol version
4296 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4297 i.e. non-zero for export ciphersuites, zero otherwise.
4298 Previous versions had this flag inverted, inconsistent with
4299 rsa_tmp_cb (..._TMP_RSA_CB).
4300 [Bodo Moeller; problem reported by Amit Chopra]
4302 *) Add missing DSA library text string. Work around for some IIS
4303 key files with invalid SEQUENCE encoding.
4306 *) Add a document (doc/standards.txt) that list all kinds of standards
4307 and so on that are implemented in OpenSSL.
4310 *) Enhance c_rehash script. Old version would mishandle certificates
4311 with the same subject name hash and wouldn't handle CRLs at all.
4312 Added -fingerprint option to crl utility, to support new c_rehash
4316 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4319 *) Fix for SSL server purpose checking. Server checking was
4320 rejecting certificates which had extended key usage present
4321 but no ssl client purpose.
4322 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4324 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4325 is a little unclear about how a blank password is handled.
4326 Since the password in encoded as a BMPString with terminating
4327 double NULL a zero length password would end up as just the
4328 double NULL. However no password at all is different and is
4329 handled differently in the PKCS#12 key generation code. NS
4330 treats a blank password as zero length. MSIE treats it as no
4331 password on export: but it will try both on import. We now do
4332 the same: PKCS12_parse() tries zero length and no password if
4333 the password is set to "" or NULL (NULL is now a valid password:
4334 it wasn't before) as does the pkcs12 application.
4337 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4338 perror when PEM_read_bio_X509_REQ fails, the error message must
4339 be obtained from the error queue.
4342 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4343 it in ERR_remove_state if appropriate, and change ERR_get_state
4344 accordingly to avoid race conditions (this is necessary because
4345 thread_hash is no longer constant once set).
4348 *) Bugfix for linux-elf makefile.one.
4351 *) RSA_get_default_method() will now cause a default
4352 RSA_METHOD to be chosen if one doesn't exist already.
4353 Previously this was only set during a call to RSA_new()
4354 or RSA_new_method(NULL) meaning it was possible for
4355 RSA_get_default_method() to return NULL.
4358 *) Added native name translation to the existing DSO code
4359 that will convert (if the flag to do so is set) filenames
4360 that are sufficiently small and have no path information
4361 into a canonical native form. Eg. "blah" converted to
4362 "libblah.so" or "blah.dll" etc.
4365 *) New function ERR_error_string_n(e, buf, len) which is like
4366 ERR_error_string(e, buf), but writes at most 'len' bytes
4367 including the 0 terminator. For ERR_error_string_n, 'buf'
4369 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4371 *) CONF library reworked to become more general. A new CONF
4372 configuration file reader "class" is implemented as well as a
4373 new functions (NCONF_*, for "New CONF") to handle it. The now
4374 old CONF_* functions are still there, but are reimplemented to
4375 work in terms of the new functions. Also, a set of functions
4376 to handle the internal storage of the configuration data is
4377 provided to make it easier to write new configuration file
4378 reader "classes" (I can definitely see something reading a
4379 configuration file in XML format, for example), called _CONF_*,
4380 or "the configuration storage API"...
4382 The new configuration file reading functions are:
4384 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4385 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4387 NCONF_default, NCONF_WIN32
4389 NCONF_dump_fp, NCONF_dump_bio
4391 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4392 NCONF_new creates a new CONF object. This works in the same way
4393 as other interfaces in OpenSSL, like the BIO interface.
4394 NCONF_dump_* dump the internal storage of the configuration file,
4395 which is useful for debugging. All other functions take the same
4396 arguments as the old CONF_* functions wth the exception of the
4397 first that must be a `CONF *' instead of a `LHASH *'.
4399 To make it easer to use the new classes with the old CONF_* functions,
4400 the function CONF_set_default_method is provided.
4403 *) Add '-tls1' option to 'openssl ciphers', which was already
4404 mentioned in the documentation but had not been implemented.
4405 (This option is not yet really useful because even the additional
4406 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4409 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4410 OpenSSL-based applications) load shared libraries and bind to
4411 them in a portable way.
4412 [Geoff Thorpe, with contributions from Richard Levitte]
4414 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4416 *) Make sure _lrotl and _lrotr are only used with MSVC.
4418 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4419 (the default implementation of RAND_status).
4421 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4422 to '-clrext' (= clear extensions), as intended and documented.
4423 [Bodo Moeller; inconsistency pointed out by Michael Attili
4426 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4427 was larger than the MD block size.
4428 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4430 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4431 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4432 using the passed key: if the passed key was a private key the result
4433 of X509_print(), for example, would be to print out all the private key
4437 *) des_quad_cksum() byte order bug fix.
4438 [Ulf Möller, using the problem description in krb4-0.9.7, where
4439 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4441 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4443 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4445 *) For easily testing in shell scripts whether some command
4446 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4447 returns with exit code 0 iff no command of the given name is available.
4448 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4449 the output goes to stdout and nothing is printed to stderr.
4450 Additional arguments are always ignored.
4452 Since for each cipher there is a command of the same name,
4453 the 'no-cipher' compilation switches can be tested this way.
4455 ('openssl no-XXX' is not able to detect pseudo-commands such
4456 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4459 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4462 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4463 is set; it will be thrown away anyway because each handshake creates
4465 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4466 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4467 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4468 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4471 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4472 'Q' and 'R' lose their special meanings (quit/renegotiate).
4473 This is part of what -quiet does; unlike -quiet, -ign_eof
4474 does not suppress any output.
4477 *) Add compatibility options to the purpose and trust code. The
4478 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4479 accepts a certificate or CA, this was the previous behaviour,
4480 with all the associated security issues.
4482 X509_TRUST_COMPAT is the old trust behaviour: only and
4483 automatically trust self signed roots in certificate store. A
4484 new trust setting X509_TRUST_DEFAULT is used to specify that
4485 a purpose has no associated trust setting and it should instead
4486 use the value in the default purpose.
4489 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4490 and fix a memory leak.
4493 *) In util/mkerr.pl (which implements 'make errors'), preserve
4494 reason strings from the previous version of the .c file, as
4495 the default to have only downcase letters (and digits) in
4496 automatically generated reasons codes is not always appropriate.
4499 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4500 using strerror. Previously, ERR_reason_error_string() returned
4501 library names as reason strings for SYSerr; but SYSerr is a special
4502 case where small numbers are errno values, not library numbers.
4505 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4506 converts DSA parameters into DH parameters. (When creating parameters,
4507 DSA_generate_parameters is used.)
4510 *) Include 'length' (recommended exponent length) in C code generated
4511 by 'openssl dhparam -C'.
4514 *) The second argument to set_label in perlasm was already being used
4515 so couldn't be used as a "file scope" flag. Moved to third argument
4519 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4520 instead of RAND_bytes for encryption IVs and salts.
4523 *) Include RAND_status() into RAND_METHOD instead of implementing
4524 it only for md_rand.c Otherwise replacing the PRNG by calling
4525 RAND_set_rand_method would be impossible.
4528 *) Don't let DSA_generate_key() enter an infinite loop if the random
4529 number generation fails.
4532 *) New 'rand' application for creating pseudo-random output.
4535 *) Added configuration support for Linux/IA64
4536 [Rolf Haberrecker <rolf@suse.de>]
4538 *) Assembler module support for Mingw32.
4541 *) Shared library support for HPUX (in shlib/).
4542 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4544 *) Shared library support for Solaris gcc.
4545 [Lutz Behnke <behnke@trustcenter.de>]
4547 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4549 *) PKCS7_encrypt() was adding text MIME headers twice because they
4550 were added manually and by SMIME_crlf_copy().
4553 *) In bntest.c don't call BN_rand with zero bits argument.
4554 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4556 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4557 case was implemented. This caused BN_div_recp() to fail occasionally.
4560 *) Add an optional second argument to the set_label() in the perl
4561 assembly language builder. If this argument exists and is set
4562 to 1 it signals that the assembler should use a symbol whose
4563 scope is the entire file, not just the current function. This
4564 is needed with MASM which uses the format label:: for this scope.
4565 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4567 *) Change the ASN1 types so they are typedefs by default. Before
4568 almost all types were #define'd to ASN1_STRING which was causing
4569 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4573 *) Change names of new functions to the new get1/get0 naming
4574 convention: After 'get1', the caller owns a reference count
4575 and has to call ..._free; 'get0' returns a pointer to some
4576 data structure without incrementing reference counters.
4577 (Some of the existing 'get' functions increment a reference
4578 counter, some don't.)
4579 Similarly, 'set1' and 'add1' functions increase reference
4580 counters or duplicate objects.
4583 *) Allow for the possibility of temp RSA key generation failure:
4584 the code used to assume it always worked and crashed on failure.
4587 *) Fix potential buffer overrun problem in BIO_printf().
4588 [Ulf Möller, using public domain code by Patrick Powell; problem
4589 pointed out by David Sacerdote <das33@cornell.edu>]
4591 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4592 RAND_egd() and RAND_status(). In the command line application,
4593 the EGD socket can be specified like a seed file using RANDFILE
4597 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4598 Some CAs (e.g. Verisign) distribute certificates in this form.
4601 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4602 list to exclude them. This means that no special compilation option
4603 is needed to use anonymous DH: it just needs to be included in the
4607 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4608 EVP_MD_type. The old functionality is available in a new macro called
4609 EVP_MD_md(). Change code that uses it and update docs.
4612 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4613 where the 'void *' argument is replaced by a function pointer argument.
4614 Previously 'void *' was abused to point to functions, which works on
4615 many platforms, but is not correct. As these functions are usually
4616 called by macros defined in OpenSSL header files, most source code
4617 should work without changes.
4620 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4621 sections with information on -D... compiler switches used for
4622 compiling the library so that applications can see them. To enable
4623 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4624 must be defined. E.g.,
4625 #define OPENSSL_ALGORITHM_DEFINES
4626 #include <openssl/opensslconf.h>
4627 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4628 [Richard Levitte, Ulf and Bodo Möller]
4630 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4634 *) Change the 'other' type in certificate aux info to a STACK_OF
4635 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4636 the required ASN1 format: arbitrary types determined by an OID.
4639 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4640 argument to 'req'. This is not because the function is newer or
4641 better than others it just uses the work 'NEW' in the certificate
4642 request header lines. Some software needs this.
4645 *) Reorganise password command line arguments: now passwords can be
4646 obtained from various sources. Delete the PEM_cb function and make
4647 it the default behaviour: i.e. if the callback is NULL and the
4648 usrdata argument is not NULL interpret it as a null terminated pass
4649 phrase. If usrdata and the callback are NULL then the pass phrase
4650 is prompted for as usual.
4653 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4654 the support is automatically enabled. The resulting binaries will
4655 autodetect the card and use it if present.
4656 [Ben Laurie and Compaq Inc.]
4658 *) Work around for Netscape hang bug. This sends certificate request
4659 and server done in one record. Since this is perfectly legal in the
4660 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4661 the bugs/SSLv3 entry for more info.
4664 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4667 *) Add -rand argument to smime and pkcs12 applications and read/write
4671 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4674 *) Add command line password options to the remaining applications.
4677 *) Bug fix for BN_div_recp() for numerators with an even number of
4681 *) More tests in bntest.c, and changed test_bn output.
4684 *) ./config recognizes MacOS X now.
4687 *) Bug fix for BN_div() when the first words of num and divsor are
4688 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4691 *) Add support for various broken PKCS#8 formats, and command line
4692 options to produce them.
4695 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4696 get temporary BIGNUMs from a BN_CTX.
4699 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4703 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4704 include a #define from the old name to the new. The original intent
4705 was that statically linked binaries could for example just call
4706 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4707 link with digests. This never worked becayse SSLeay_add_all_digests()
4708 and SSLeay_add_all_ciphers() were in the same source file so calling
4709 one would link with the other. They are now in separate source files.
4712 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4715 *) Use a less unusual form of the Miller-Rabin primality test (it used
4716 a binary algorithm for exponentiation integrated into the Miller-Rabin
4717 loop, our standard modexp algorithms are faster).
4720 *) Support for the EBCDIC character set completed.
4721 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4723 *) Source code cleanups: use const where appropriate, eliminate casts,
4724 use void * instead of char * in lhash.
4727 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4728 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4729 this the server could overwrite ephemeral keys that the client
4733 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4734 using 50 iterations of the Rabin-Miller test.
4736 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4737 iterations of the Rabin-Miller test as required by the appendix
4738 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4739 As BN_is_prime_fasttest includes trial division, DSA parameter
4740 generation becomes much faster.
4742 This implies a change for the callback functions in DSA_is_prime
4743 and DSA_generate_parameters: The callback function is called once
4744 for each positive witness in the Rabin-Miller test, not just
4745 occasionally in the inner loop; and the parameters to the
4746 callback function now provide an iteration count for the outer
4747 loop rather than for the current invocation of the inner loop.
4748 DSA_generate_parameters additionally can call the callback
4749 function with an 'iteration count' of -1, meaning that a
4750 candidate has passed the trial division test (when q is generated
4751 from an application-provided seed, trial division is skipped).
4754 *) New function BN_is_prime_fasttest that optionally does trial
4755 division before starting the Rabin-Miller test and has
4756 an additional BN_CTX * argument (whereas BN_is_prime always
4757 has to allocate at least one BN_CTX).
4758 'callback(1, -1, cb_arg)' is called when a number has passed the
4759 trial division stage.
4762 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4766 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4769 *) New function BN_pseudo_rand().
4772 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4773 bignum version of BN_from_montgomery() with the working code from
4774 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4778 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4779 made it impossible to use the same SSL_SESSION data structure in
4780 SSL2 clients in multiple threads.
4783 *) The return value of RAND_load_file() no longer counts bytes obtained
4784 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4785 to seed the PRNG (previously an explicit byte count was required).
4786 [Ulf Möller, Bodo Möller]
4788 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4789 used (char *) instead of (void *) and had casts all over the place.
4792 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4795 *) Retain source code compatibility for BN_prime_checks macro:
4796 BN_is_prime(..., BN_prime_checks, ...) now uses
4797 BN_prime_checks_for_size to determine the appropriate number of
4798 Rabin-Miller iterations.
4801 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4802 DH_CHECK_P_NOT_SAFE_PRIME.
4803 (Check if this is true? OpenPGP calls them "strong".)
4806 *) Merge the functionality of "dh" and "gendh" programs into a new program
4807 "dhparam". The old programs are retained for now but will handle DH keys
4808 (instead of parameters) in future.
4811 *) Make the ciphers, s_server and s_client programs check the return values
4812 when a new cipher list is set.
4815 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4816 ciphers. Before when the 56bit ciphers were enabled the sorting was
4819 The syntax for the cipher sorting has been extended to support sorting by
4820 cipher-strength (using the strength_bits hard coded in the tables).
4821 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4823 Fix a bug in the cipher-command parser: when supplying a cipher command
4824 string with an "undefined" symbol (neither command nor alphanumeric
4825 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4826 an error is flagged.
4828 Due to the strength-sorting extension, the code of the
4829 ssl_create_cipher_list() function was completely rearranged. I hope that
4830 the readability was also increased :-)
4831 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4833 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4834 for the first serial number and places 2 in the serial number file. This
4835 avoids problems when the root CA is created with serial number zero and
4836 the first user certificate has the same issuer name and serial number
4840 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4841 the new code. Add documentation for this stuff.
4844 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4845 X509_*() to X509at_*() on the grounds that they don't handle X509
4846 structures and behave in an analagous way to the X509v3 functions:
4847 they shouldn't be called directly but wrapper functions should be used
4850 So we also now have some wrapper functions that call the X509at functions
4851 when passed certificate requests. (TO DO: similar things can be done with
4852 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4853 things. Some of these need some d2i or i2d and print functionality
4854 because they handle more complex structures.)
4857 *) Add missing #ifndefs that caused missing symbols when building libssl
4858 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4859 NO_RSA in ssl/s2*.c.
4860 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4862 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4863 has a return value which indicates the quality of the random data
4864 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4865 error queue. New function RAND_pseudo_bytes() generates output that is
4866 guaranteed to be unique but not unpredictable. RAND_add is like
4867 RAND_seed, but takes an extra argument for an entropy estimate
4868 (RAND_seed always assumes full entropy).
4871 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4872 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4873 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4874 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4875 false-positive rate of at most 2^-80 for random input.
4878 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4881 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4882 in the 0.9.5 release), this returns the chain
4883 from an X509_CTX structure with a dup of the stack and all
4884 the X509 reference counts upped: so the stack will exist
4885 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4888 Also make SSL_SESSION_print() print out the verify return
4892 *) Add manpage for the pkcs12 command. Also change the default
4893 behaviour so MAC iteration counts are used unless the new
4894 -nomaciter option is used. This improves file security and
4895 only older versions of MSIE (4.0 for example) need it.
4898 *) Honor the no-xxx Configure options when creating .DEF files.
4901 *) Add PKCS#10 attributes to field table: challengePassword,
4902 unstructuredName and unstructuredAddress. These are taken from
4903 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4904 international characters are used.
4906 More changes to X509_ATTRIBUTE code: allow the setting of types
4907 based on strings. Remove the 'loc' parameter when adding
4908 attributes because these will be a SET OF encoding which is sorted
4912 *) Initial changes to the 'req' utility to allow request generation
4913 automation. This will allow an application to just generate a template
4914 file containing all the field values and have req construct the
4917 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4918 used all over the place including certificate requests and PKCS#7
4919 structures. They are currently handled manually where necessary with
4920 some primitive wrappers for PKCS#7. The new functions behave in a
4921 manner analogous to the X509 extension functions: they allow
4922 attributes to be looked up by NID and added.
4924 Later something similar to the X509V3 code would be desirable to
4925 automatically handle the encoding, decoding and printing of the
4926 more complex types. The string types like challengePassword can
4927 be handled by the string table functions.
4929 Also modified the multi byte string table handling. Now there is
4930 a 'global mask' which masks out certain types. The table itself
4931 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4932 is useful when for example there is only one permissible type
4933 (as in countryName) and using the mask might result in no valid
4937 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4938 SSL_get_peer_finished to allow applications to obtain the latest
4939 Finished messages sent to the peer or expected from the peer,
4940 respectively. (SSL_get_peer_finished is usually the Finished message
4941 actually received from the peer, otherwise the protocol will be aborted.)
4943 As the Finished message are message digests of the complete handshake
4944 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4945 be used for external authentication procedures when the authentication
4946 provided by SSL/TLS is not desired or is not enough.
4949 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4950 the host supports BWX extension and if Compaq C is present on the
4951 $PATH. Just exploiting of the BWX extension results in 20-30%
4952 performance kick for some algorithms, e.g. DES and RC4 to mention
4953 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4957 *) Add support for MS "fast SGC". This is arguably a violation of the
4958 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4959 weak crypto and after checking the certificate is SGC a second one
4960 with strong crypto. MS SGC stops the first handshake after receiving
4961 the server certificate message and sends a second client hello. Since
4962 a server will typically do all the time consuming operations before
4963 expecting any further messages from the client (server key exchange
4964 is the most expensive) there is little difference between the two.
4966 To get OpenSSL to support MS SGC we have to permit a second client
4967 hello message after we have sent server done. In addition we have to
4968 reset the MAC if we do get this second client hello.
4971 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4972 if a DER encoded private key is RSA or DSA traditional format. Changed
4973 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4974 format DER encoded private key. Newer code should use PKCS#8 format which
4975 has the key type encoded in the ASN1 structure. Added DER private key
4976 support to pkcs8 application.
4979 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4980 ciphersuites has been selected (as required by the SSL 3/TLS 1
4981 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4982 is set, we interpret this as a request to violate the specification
4983 (the worst that can happen is a handshake failure, and 'correct'
4984 behaviour would result in a handshake failure anyway).
4987 *) In SSL_CTX_add_session, take into account that there might be multiple
4988 SSL_SESSION structures with the same session ID (e.g. when two threads
4989 concurrently obtain them from an external cache).
4990 The internal cache can handle only one SSL_SESSION with a given ID,
4991 so if there's a conflict, we now throw out the old one to achieve
4995 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4996 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4997 some routines that use cipher OIDs: some ciphers do not have OIDs
4998 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5002 *) Simplify the trust setting structure and code. Now we just have
5003 two sequences of OIDs for trusted and rejected settings. These will
5004 typically have values the same as the extended key usage extension
5005 and any application specific purposes.
5007 The trust checking code now has a default behaviour: it will just
5008 check for an object with the same NID as the passed id. Functions can
5009 be provided to override either the default behaviour or the behaviour
5010 for a given id. SSL client, server and email already have functions
5011 in place for compatibility: they check the NID and also return "trusted"
5012 if the certificate is self signed.
5015 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5016 traditional format into an EVP_PKEY structure.
5019 *) Add a password callback function PEM_cb() which either prompts for
5020 a password if usr_data is NULL or otherwise assumes it is a null
5021 terminated password. Allow passwords to be passed on command line
5022 environment or config files in a few more utilities.
5025 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5026 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5027 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5028 Update documentation.
5031 *) Support for ASN1 "NULL" type. This could be handled before by using
5032 ASN1_TYPE but there wasn't any function that would try to read a NULL
5033 and produce an error if it couldn't. For compatibility we also have
5034 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5035 don't allocate anything because they don't need to.
5038 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5040 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5042 *) Rebuild of the memory allocation routines used by OpenSSL code and
5043 possibly others as well. The purpose is to make an interface that
5044 provide hooks so anyone can build a separate set of allocation and
5045 deallocation routines to be used by OpenSSL, for example memory
5046 pool implementations, or something else, which was previously hard
5047 since Malloc(), Realloc() and Free() were defined as macros having
5048 the values malloc, realloc and free, respectively (except for Win32
5049 compilations). The same is provided for memory debugging code.
5050 OpenSSL already comes with functionality to find memory leaks, but
5051 this gives people a chance to debug other memory problems.
5053 With these changes, a new set of functions and macros have appeared:
5055 CRYPTO_set_mem_debug_functions() [F]
5056 CRYPTO_get_mem_debug_functions() [F]
5057 CRYPTO_dbg_set_options() [F]
5058 CRYPTO_dbg_get_options() [F]
5059 CRYPTO_malloc_debug_init() [M]
5061 The memory debug functions are NULL by default, unless the library
5062 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5063 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5064 gives the standard debugging functions that come with OpenSSL) or
5065 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5066 provided by the library user) must be used. When the standard
5067 debugging functions are used, CRYPTO_dbg_set_options can be used to
5068 request additional information:
5069 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5070 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5072 Also, things like CRYPTO_set_mem_functions will always give the
5073 expected result (the new set of functions is used for allocation
5074 and deallocation) at all times, regardless of platform and compiler
5077 To finish it up, some functions that were never use in any other
5078 way than through macros have a new API and new semantic:
5081 CRYPTO_dbg_realloc()
5084 All macros of value have retained their old syntax.
5085 [Richard Levitte and Bodo Moeller]
5087 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5088 ordering of SMIMECapabilities wasn't in "strength order" and there
5089 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5093 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5094 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5095 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5097 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5098 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5099 functionality to handle multipart/signed properly) and a utility
5100 called 'smime' to call all this stuff. This is based on code I
5101 originally wrote for Celo who have kindly allowed it to be
5102 included in OpenSSL.
5105 *) Add variants des_set_key_checked and des_set_key_unchecked of
5106 des_set_key (aka des_key_sched). Global variable des_check_key
5107 decides which of these is called by des_set_key; this way
5108 des_check_key behaves as it always did, but applications and
5109 the library itself, which was buggy for des_check_key == 1,
5110 have a cleaner way to pick the version they need.
5113 *) New function PKCS12_newpass() which changes the password of a
5117 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5118 dynamic mix. In both cases the ids can be used as an index into the
5119 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5120 functions so they accept a list of the field values and the
5121 application doesn't need to directly manipulate the X509_TRUST
5125 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5129 *) Modify the way the V3 extension code looks up extensions. This now
5130 works in a similar way to the object code: we have some "standard"
5131 extensions in a static table which is searched with OBJ_bsearch()
5132 and the application can add dynamic ones if needed. The file
5133 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5134 updated whenever a new extension is added to the core code and kept
5135 in ext_nid order. There is a simple program 'tabtest.c' which checks
5136 this. New extensions are not added too often so this file can readily
5137 be maintained manually.
5139 There are two big advantages in doing things this way. The extensions
5140 can be looked up immediately and no longer need to be "added" using
5141 X509V3_add_standard_extensions(): this function now does nothing.
5142 [Side note: I get *lots* of email saying the extension code doesn't
5143 work because people forget to call this function]
5144 Also no dynamic allocation is done unless new extensions are added:
5145 so if we don't add custom extensions there is no need to call
5146 X509V3_EXT_cleanup().
5149 *) Modify enc utility's salting as follows: make salting the default. Add a
5150 magic header, so unsalted files fail gracefully instead of just decrypting
5151 to garbage. This is because not salting is a big security hole, so people
5152 should be discouraged from doing it.
5155 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5156 digest to be passed on the command line but it only used this
5157 parameter when signing a certificate. Modified so all relevant
5158 operations are affected by the digest parameter including the
5159 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5160 DSA key was used because it didn't fix the digest.
5163 *) Initial certificate chain verify code. Currently tests the untrusted
5164 certificates for consistency with the verify purpose (which is set
5165 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5167 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5168 this is because it will reject chains with invalid extensions whereas
5169 every previous version of OpenSSL and SSLeay made no checks at all.
5171 Trust code: checks the root CA for the relevant trust settings. Trust
5172 settings have an initial value consistent with the verify purpose: e.g.
5173 if the verify purpose is for SSL client use it expects the CA to be
5174 trusted for SSL client use. However the default value can be changed to
5175 permit custom trust settings: one example of this would be to only trust
5176 certificates from a specific "secure" set of CAs.
5178 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5179 which should be used for version portability: especially since the
5180 verify structure is likely to change more often now.
5182 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5183 to set them. If not set then assume SSL clients will verify SSL servers
5186 Two new options to the verify program: -untrusted allows a set of
5187 untrusted certificates to be passed in and -purpose which sets the
5188 intended purpose of the certificate. If a purpose is set then the
5189 new chain verify code is used to check extension consistency.
5192 *) Support for the authority information access extension.
5195 *) Modify RSA and DSA PEM read routines to transparently handle
5196 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5197 public keys in a format compatible with certificate
5198 SubjectPublicKeyInfo structures. Unfortunately there were already
5199 functions called *_PublicKey_* which used various odd formats so
5200 these are retained for compatibility: however the DSA variants were
5201 never in a public release so they have been deleted. Changed dsa/rsa
5202 utilities to handle the new format: note no releases ever handled public
5203 keys so we should be OK.
5205 The primary motivation for this change is to avoid the same fiasco
5206 that dogs private keys: there are several incompatible private key
5207 formats some of which are standard and some OpenSSL specific and
5208 require various evil hacks to allow partial transparent handling and
5209 even then it doesn't work with DER formats. Given the option anything
5210 other than PKCS#8 should be dumped: but the other formats have to
5211 stay in the name of compatibility.
5213 With public keys and the benefit of hindsight one standard format
5214 is used which works with EVP_PKEY, RSA or DSA structures: though
5215 it clearly returns an error if you try to read the wrong kind of key.
5217 Added a -pubkey option to the 'x509' utility to output the public key.
5218 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5219 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5220 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5221 that do the same as the EVP_PKEY_assign_*() except they up the
5222 reference count of the added key (they don't "swallow" the
5226 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5227 CRLs would fail if the file contained no certificates or no CRLs:
5228 added a new function to read in both types and return the number
5229 read: this means that if none are read it will be an error. The
5230 DER versions of the certificate and CRL reader would always fail
5231 because it isn't possible to mix certificates and CRLs in DER format
5232 without choking one or the other routine. Changed this to just read
5233 a certificate: this is the best we can do. Also modified the code
5234 in apps/verify.c to take notice of return codes: it was previously
5235 attempting to read in certificates from NULL pointers and ignoring
5236 any errors: this is one reason why the cert and CRL reader seemed
5237 to work. It doesn't check return codes from the default certificate
5238 routines: these may well fail if the certificates aren't installed.
5241 *) Code to support otherName option in GeneralName.
5244 *) First update to verify code. Change the verify utility
5245 so it warns if it is passed a self signed certificate:
5246 for consistency with the normal behaviour. X509_verify
5247 has been modified to it will now verify a self signed
5248 certificate if *exactly* the same certificate appears
5249 in the store: it was previously impossible to trust a
5250 single self signed certificate. This means that:
5251 openssl verify ss.pem
5252 now gives a warning about a self signed certificate but
5253 openssl verify -CAfile ss.pem ss.pem
5257 *) For servers, store verify_result in SSL_SESSION data structure
5258 (and add it to external session representation).
5259 This is needed when client certificate verifications fails,
5260 but an application-provided verification callback (set by
5261 SSL_CTX_set_cert_verify_callback) allows accepting the session
5262 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5263 but returns 1): When the session is reused, we have to set
5264 ssl->verify_result to the appropriate error code to avoid
5266 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5268 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5269 case in PKCS7_dataInit() where the signed PKCS7 structure
5270 didn't contain any existing data because it was being created.
5271 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5273 *) Add a salt to the key derivation routines in enc.c. This
5274 forms the first 8 bytes of the encrypted file. Also add a
5275 -S option to allow a salt to be input on the command line.
5278 *) New function X509_cmp(). Oddly enough there wasn't a function
5279 to compare two certificates. We do this by working out the SHA1
5280 hash and comparing that. X509_cmp() will be needed by the trust
5284 *) SSL_get1_session() is like SSL_get_session(), but increments
5285 the reference count in the SSL_SESSION returned.
5286 [Geoff Thorpe <geoff@eu.c2.net>]
5288 *) Fix for 'req': it was adding a null to request attributes.
5289 Also change the X509_LOOKUP and X509_INFO code to handle
5290 certificate auxiliary information.
5293 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5297 *) Add the possibility to add extra information to the memory leak
5298 detecting output, to form tracebacks, showing from where each
5299 allocation was originated: CRYPTO_push_info("constant string") adds
5300 the string plus current file name and line number to a per-thread
5301 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5302 is like calling CYRPTO_pop_info() until the stack is empty.
5303 Also updated memory leak detection code to be multi-thread-safe.
5306 *) Add options -text and -noout to pkcs7 utility and delete the
5307 encryption options which never did anything. Update docs.
5310 *) Add options to some of the utilities to allow the pass phrase
5311 to be included on either the command line (not recommended on
5312 OSes like Unix) or read from the environment. Update the
5313 manpages and fix a few bugs.
5316 *) Add a few manpages for some of the openssl commands.
5319 *) Fix the -revoke option in ca. It was freeing up memory twice,
5320 leaking and not finding already revoked certificates.
5323 *) Extensive changes to support certificate auxiliary information.
5324 This involves the use of X509_CERT_AUX structure and X509_AUX
5325 functions. An X509_AUX function such as PEM_read_X509_AUX()
5326 can still read in a certificate file in the usual way but it
5327 will also read in any additional "auxiliary information". By
5328 doing things this way a fair degree of compatibility can be
5329 retained: existing certificates can have this information added
5330 using the new 'x509' options.
5332 Current auxiliary information includes an "alias" and some trust
5333 settings. The trust settings will ultimately be used in enhanced
5334 certificate chain verification routines: currently a certificate
5335 can only be trusted if it is self signed and then it is trusted
5339 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5340 The problem was that one of the replacement routines had not been working
5341 since SSLeay releases. For now the offending routine has been replaced
5342 with non-optimised assembler. Even so, this now gives around 95%
5343 performance improvement for 1024 bit RSA signs.
5346 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5347 handling. Most clients have the effective key size in bits equal to
5348 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5349 A few however don't do this and instead use the size of the decrypted key
5350 to determine the RC2 key length and the AlgorithmIdentifier to determine
5351 the effective key length. In this case the effective key length can still
5352 be 40 bits but the key length can be 168 bits for example. This is fixed
5353 by manually forcing an RC2 key into the EVP_PKEY structure because the
5354 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5355 the key length and effective key length are equal.
5358 *) Add a bunch of functions that should simplify the creation of
5359 X509_NAME structures. Now you should be able to do:
5360 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5361 and have it automatically work out the correct field type and fill in
5362 the structures. The more adventurous can try:
5363 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5364 and it will (hopefully) work out the correct multibyte encoding.
5367 *) Change the 'req' utility to use the new field handling and multibyte
5368 copy routines. Before the DN field creation was handled in an ad hoc
5369 way in req, ca, and x509 which was rather broken and didn't support
5370 BMPStrings or UTF8Strings. Since some software doesn't implement
5371 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5372 using the dirstring_type option. See the new comment in the default
5373 openssl.cnf for more info.
5376 *) Make crypto/rand/md_rand.c more robust:
5377 - Assure unique random numbers after fork().
5378 - Make sure that concurrent threads access the global counter and
5379 md serializably so that we never lose entropy in them
5380 or use exactly the same state in multiple threads.
5381 Access to the large state is not always serializable because
5382 the additional locking could be a performance killer, and
5383 md should be large enough anyway.
5386 *) New file apps/app_rand.c with commonly needed functionality
5387 for handling the random seed file.
5389 Use the random seed file in some applications that previously did not:
5391 dsaparam -genkey (which also ignored its '-rand' option),
5394 x509 (when signing).
5395 Except on systems with /dev/urandom, it is crucial to have a random
5396 seed file at least for key creation, DSA signing, and for DH exchanges;
5397 for RSA signatures we could do without one.
5399 gendh and gendsa (unlike genrsa) used to read only the first byte
5400 of each file listed in the '-rand' option. The function as previously
5401 found in genrsa is now in app_rand.c and is used by all programs
5402 that support '-rand'.
5405 *) In RAND_write_file, use mode 0600 for creating files;
5406 don't just chmod when it may be too late.
5409 *) Report an error from X509_STORE_load_locations
5410 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5413 *) New function ASN1_mbstring_copy() this copies a string in either
5414 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5415 into an ASN1_STRING type. A mask of permissible types is passed
5416 and it chooses the "minimal" type to use or an error if not type
5420 *) Add function equivalents to the various macros in asn1.h. The old
5421 macros are retained with an M_ prefix. Code inside the library can
5422 use the M_ macros. External code (including the openssl utility)
5423 should *NOT* in order to be "shared library friendly".
5426 *) Add various functions that can check a certificate's extensions
5427 to see if it usable for various purposes such as SSL client,
5428 server or S/MIME and CAs of these types. This is currently
5429 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5430 verification. Also added a -purpose flag to x509 utility to
5431 print out all the purposes.
5434 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5438 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5439 for, obtain and decode and extension and obtain its critical flag.
5440 This allows all the necessary extension code to be handled in a
5441 single function call.
5444 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5445 platforms. See crypto/rc4/rc4_enc.c for further details.
5448 *) New -noout option to asn1parse. This causes no output to be produced
5449 its main use is when combined with -strparse and -out to extract data
5450 from a file (which may not be in ASN.1 format).
5453 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5454 when producing the local key id.
5455 [Richard Levitte <levitte@stacken.kth.se>]
5457 *) New option -dhparam in s_server. This allows a DH parameter file to be
5458 stated explicitly. If it is not stated then it tries the first server
5459 certificate file. The previous behaviour hard coded the filename
5463 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5464 a public key to be input or output. For example:
5465 openssl rsa -in key.pem -pubout -out pubkey.pem
5466 Also added necessary DSA public key functions to handle this.
5469 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5470 in the message. This was handled by allowing
5471 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5472 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5474 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5475 to the end of the strings whereas this didn't. This would cause problems
5476 if strings read with d2i_ASN1_bytes() were later modified.
5477 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5479 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5480 data and it contains EOF it will end up returning an error. This is
5481 caused by input 46 bytes long. The cause is due to the way base64
5482 BIOs find the start of base64 encoded data. They do this by trying a
5483 trial decode on each line until they find one that works. When they
5484 do a flag is set and it starts again knowing it can pass all the
5485 data directly through the decoder. Unfortunately it doesn't reset
5486 the context it uses. This means that if EOF is reached an attempt
5487 is made to pass two EOFs through the context and this causes the
5488 resulting error. This can also cause other problems as well. As is
5489 usual with these problems it takes *ages* to find and the fix is
5490 trivial: move one line.
5491 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5493 *) Ugly workaround to get s_client and s_server working under Windows. The
5494 old code wouldn't work because it needed to select() on sockets and the
5495 tty (for keypresses and to see if data could be written). Win32 only
5496 supports select() on sockets so we select() with a 1s timeout on the
5497 sockets and then see if any characters are waiting to be read, if none
5498 are present then we retry, we also assume we can always write data to
5499 the tty. This isn't nice because the code then blocks until we've
5500 received a complete line of data and it is effectively polling the
5501 keyboard at 1s intervals: however it's quite a bit better than not
5502 working at all :-) A dedicated Windows application might handle this
5503 with an event loop for example.
5506 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5507 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5508 will be called when RSA_sign() and RSA_verify() are used. This is useful
5509 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5510 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5511 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5512 This necessitated the support of an extra signature type NID_md5_sha1
5513 for SSL signatures and modifications to the SSL library to use it instead
5514 of calling RSA_public_decrypt() and RSA_private_encrypt().
5517 *) Add new -verify -CAfile and -CApath options to the crl program, these
5518 will lookup a CRL issuers certificate and verify the signature in a
5519 similar way to the verify program. Tidy up the crl program so it
5520 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5521 less strict. It will now permit CRL extensions even if it is not
5522 a V2 CRL: this will allow it to tolerate some broken CRLs.
5525 *) Initialize all non-automatic variables each time one of the openssl
5526 sub-programs is started (this is necessary as they may be started
5527 multiple times from the "OpenSSL>" prompt).
5528 [Lennart Bang, Bodo Moeller]
5530 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5531 removing all other RSA functionality (this is what NO_RSA does). This
5532 is so (for example) those in the US can disable those operations covered
5533 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5537 *) Non-copying interface to BIO pairs.
5538 (still largely untested)
5541 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5542 ASCII string. This was handled independently in various places before.
5545 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5546 UTF8 strings a character at a time.
5549 *) Use client_version from client hello to select the protocol
5550 (s23_srvr.c) and for RSA client key exchange verification
5551 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5554 *) Add various utility functions to handle SPKACs, these were previously
5555 handled by poking round in the structure internals. Added new function
5556 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5557 print, verify and generate SPKACs. Based on an original idea from
5558 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5561 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5564 *) Allow the config file extension section to be overwritten on the
5565 command line. Based on an original idea from Massimiliano Pala
5566 <madwolf@comune.modena.it>. The new option is called -extensions
5567 and can be applied to ca, req and x509. Also -reqexts to override
5568 the request extensions in req and -crlexts to override the crl extensions
5572 *) Add new feature to the SPKAC handling in ca. Now you can include
5573 the same field multiple times by preceding it by "XXXX." for example:
5576 this is the same syntax as used in the req config file.
5579 *) Allow certificate extensions to be added to certificate requests. These
5580 are specified in a 'req_extensions' option of the req section of the
5581 config file. They can be printed out with the -text option to req but
5582 are otherwise ignored at present.
5585 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5586 data read consists of only the final block it would not decrypted because
5587 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5588 A misplaced 'break' also meant the decrypted final block might not be
5589 copied until the next read.
5592 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5593 a few extra parameters to the DH structure: these will be useful if
5594 for example we want the value of 'q' or implement X9.42 DH.
5597 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5598 provides hooks that allow the default DSA functions or functions on a
5599 "per key" basis to be replaced. This allows hardware acceleration and
5600 hardware key storage to be handled without major modification to the
5601 library. Also added low level modexp hooks and CRYPTO_EX structure and
5602 associated functions.
5605 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5606 as "read only": it can't be written to and the buffer it points to will
5607 not be freed. Reading from a read only BIO is much more efficient than
5608 a normal memory BIO. This was added because there are several times when
5609 an area of memory needs to be read from a BIO. The previous method was
5610 to create a memory BIO and write the data to it, this results in two
5611 copies of the data and an O(n^2) reading algorithm. There is a new
5612 function BIO_new_mem_buf() which creates a read only memory BIO from
5613 an area of memory. Also modified the PKCS#7 routines to use read only
5617 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5618 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5619 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5620 but a retry condition occured while trying to read the rest.
5623 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5624 NID_pkcs7_encrypted by default: this was wrong since this should almost
5625 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5626 the encrypted data type: this is a more sensible place to put it and it
5627 allows the PKCS#12 code to be tidied up that duplicated this
5631 *) Changed obj_dat.pl script so it takes its input and output files on
5632 the command line. This should avoid shell escape redirection problems
5636 *) Initial support for certificate extension requests, these are included
5637 in things like Xenroll certificate requests. Included functions to allow
5638 extensions to be obtained and added.
5641 *) -crlf option to s_client and s_server for sending newlines as
5642 CRLF (as required by many protocols).
5645 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5647 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5648 [Ralf S. Engelschall]
5650 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5651 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5653 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5657 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5658 DH parameters/keys (q is lost during that conversion, but the resulting
5659 DH parameters contain its length).
5661 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5662 much faster than DH_generate_parameters (which creates parameters
5663 where p = 2*q + 1), and also the smaller q makes DH computations
5664 much more efficient (160-bit exponentiation instead of 1024-bit
5665 exponentiation); so this provides a convenient way to support DHE
5666 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5667 utter importance to use
5668 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5670 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5671 when such DH parameters are used, because otherwise small subgroup
5672 attacks may become possible!
5675 *) Avoid memory leak in i2d_DHparams.
5678 *) Allow the -k option to be used more than once in the enc program:
5679 this allows the same encrypted message to be read by multiple recipients.
5682 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5683 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5684 it will always use the numerical form of the OID, even if it has a short
5688 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5689 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5690 otherwise bn_mod_exp was called. In the case of hardware keys for example
5691 no private key components need be present and it might store extra data
5692 in the RSA structure, which cannot be accessed from bn_mod_exp.
5693 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5694 private key operations.
5697 *) Added support for SPARC Linux.
5700 *) pem_password_cb function type incompatibly changed from
5701 typedef int pem_password_cb(char *buf, int size, int rwflag);
5703 ....(char *buf, int size, int rwflag, void *userdata);
5704 so that applications can pass data to their callbacks:
5705 The PEM[_ASN1]_{read,write}... functions and macros now take an
5706 additional void * argument, which is just handed through whenever
5707 the password callback is called.
5708 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5710 New function SSL_CTX_set_default_passwd_cb_userdata.
5712 Compatibility note: As many C implementations push function arguments
5713 onto the stack in reverse order, the new library version is likely to
5714 interoperate with programs that have been compiled with the old
5715 pem_password_cb definition (PEM_whatever takes some data that
5716 happens to be on the stack as its last argument, and the callback
5717 just ignores this garbage); but there is no guarantee whatsoever that
5720 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5721 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5722 problems not only on Windows, but also on some Unix platforms.
5723 To avoid problematic command lines, these definitions are now in an
5724 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5725 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5728 *) MIPS III/IV assembler module is reimplemented.
5731 *) More DES library cleanups: remove references to srand/rand and
5732 delete an unused file.
5735 *) Add support for the the free Netwide assembler (NASM) under Win32,
5736 since not many people have MASM (ml) and it can be hard to obtain.
5737 This is currently experimental but it seems to work OK and pass all
5738 the tests. Check out INSTALL.W32 for info.
5741 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5742 without temporary keys kept an extra copy of the server key,
5743 and connections with temporary keys did not free everything in case
5747 *) New function RSA_check_key and new openssl rsa option -check
5748 for verifying the consistency of RSA keys.
5749 [Ulf Moeller, Bodo Moeller]
5751 *) Various changes to make Win32 compile work:
5752 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5753 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5754 comparison" warnings.
5755 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5758 *) Add a debugging option to PKCS#5 v2 key generation function: when
5759 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5760 derived keys are printed to stderr.
5763 *) Copy the flags in ASN1_STRING_dup().
5764 [Roman E. Pavlov <pre@mo.msk.ru>]
5766 *) The x509 application mishandled signing requests containing DSA
5767 keys when the signing key was also DSA and the parameters didn't match.
5769 It was supposed to omit the parameters when they matched the signing key:
5770 the verifying software was then supposed to automatically use the CA's
5771 parameters if they were absent from the end user certificate.
5773 Omitting parameters is no longer recommended. The test was also
5774 the wrong way round! This was probably due to unusual behaviour in
5775 EVP_cmp_parameters() which returns 1 if the parameters match.
5776 This meant that parameters were omitted when they *didn't* match and
5777 the certificate was useless. Certificates signed with 'ca' didn't have
5779 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5781 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5782 The interface is as follows:
5783 Applications can use
5784 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5785 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5786 "off" is now the default.
5787 The library internally uses
5788 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5789 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5790 to disable memory-checking temporarily.
5792 Some inconsistent states that previously were possible (and were
5793 even the default) are now avoided.
5795 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5796 with each memory chunk allocated; this is occasionally more helpful
5797 than just having a counter.
5799 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5801 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5805 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5806 which largely parallels "options", but is for changing API behaviour,
5807 whereas "options" are about protocol behaviour.
5808 Initial "mode" flags are:
5810 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5811 a single record has been written.
5812 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5813 retries use the same buffer location.
5814 (But all of the contents must be
5818 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5821 *) Fix problems with no-hmac etc.
5822 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5824 *) New functions RSA_get_default_method(), RSA_set_method() and
5825 RSA_get_method(). These allows replacement of RSA_METHODs without having
5826 to mess around with the internals of an RSA structure.
5829 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5830 Also really enable memory leak checks in openssl.c and in some
5832 [Chad C. Mulligan, Bodo Moeller]
5834 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5835 up the length of negative integers. This has now been simplified to just
5836 store the length when it is first determined and use it later, rather
5837 than trying to keep track of where data is copied and updating it to
5839 [Steve Henson, reported by Brien Wheeler
5840 <bwheeler@authentica-security.com>]
5842 *) Add a new function PKCS7_signatureVerify. This allows the verification
5843 of a PKCS#7 signature but with the signing certificate passed to the
5844 function itself. This contrasts with PKCS7_dataVerify which assumes the
5845 certificate is present in the PKCS#7 structure. This isn't always the
5846 case: certificates can be omitted from a PKCS#7 structure and be
5847 distributed by "out of band" means (such as a certificate database).
5850 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5851 function prototypes in pem.h, also change util/mkdef.pl to add the
5852 necessary function names.
5855 *) mk1mf.pl (used by Windows builds) did not properly read the
5856 options set by Configure in the top level Makefile, and Configure
5857 was not even able to write more than one option correctly.
5858 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5861 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5862 file to be loaded from a BIO or FILE pointer. The BIO version will
5863 for example allow memory BIOs to contain config info.
5866 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5867 Whoever hopes to achieve shared-library compatibility across versions
5868 must use this, not the compile-time macro.
5869 (Exercise 0.9.4: Which is the minimum library version required by
5871 Note: All this applies only to multi-threaded programs, others don't
5875 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5876 through a BIO pair triggered the default case, i.e.
5877 SSLerr(...,SSL_R_UNKNOWN_STATE).
5880 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5881 can use the SSL library even if none of the specific BIOs is
5885 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5886 for the encoded length.
5887 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5889 *) Add initial documentation of the X509V3 functions.
5892 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5893 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5894 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5895 secure PKCS#8 private key format with a high iteration count.
5898 *) Fix determination of Perl interpreter: A perl or perl5
5899 _directory_ in $PATH was also accepted as the interpreter.
5900 [Ralf S. Engelschall]
5902 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5903 wrong with it but it was very old and did things like calling
5904 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5908 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5909 to use the new extension code.
5912 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5913 with macros. This should make it easier to change their form, add extra
5914 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5918 *) Add to configuration table a new entry that can specify an alternative
5919 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5920 according to Mark Crispin <MRC@Panda.COM>.
5924 *) DES CBC did not update the IV. Weird.
5927 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5928 Changing the behaviour of the former might break existing programs --
5929 where IV updating is needed, des_ncbc_encrypt can be used.
5932 *) When bntest is run from "make test" it drives bc to check its
5933 calculations, as well as internally checking them. If an internal check
5934 fails, it needs to cause bc to give a non-zero result or make test carries
5935 on without noticing the failure. Fixed.
5938 *) DES library cleanups.
5941 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5942 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5943 ciphers. NOTE: although the key derivation function has been verified
5944 against some published test vectors it has not been extensively tested
5945 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5949 *) Instead of "mkdir -p", which is not fully portable, use new
5950 Perl script "util/mkdir-p.pl".
5953 *) Rewrite the way password based encryption (PBE) is handled. It used to
5954 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5955 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5956 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5957 the 'parameter' field of the AlgorithmIdentifier is passed to the
5958 underlying key generation function so it must do its own ASN1 parsing.
5959 This has also changed the EVP_PBE_CipherInit() function which now has a
5960 'parameter' argument instead of literal salt and iteration count values
5961 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5964 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5965 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5966 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5967 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5968 value was just used as a "magic string" and not used directly its
5969 value doesn't matter.
5972 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5976 *) "linux-sparc64" configuration (ultrapenguin).
5977 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5978 "linux-sparc" configuration.
5979 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5981 *) config now generates no-xxx options for missing ciphers.
5984 *) Support the EBCDIC character set (work in progress).
5985 File ebcdic.c not yet included because it has a different license.
5986 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5988 *) Support BS2000/OSD-POSIX.
5989 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5991 *) Make callbacks for key generation use void * instead of char *.
5994 *) Make S/MIME samples compile (not yet tested).
5997 *) Additional typesafe stacks.
6000 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6004 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6006 *) New configuration variant "sco5-gcc".
6008 *) Updated some demos.
6009 [Sean O Riordain, Wade Scholine]
6011 *) Add missing BIO_free at exit of pkcs12 application.
6014 *) Fix memory leak in conf.c.
6017 *) Updates for Win32 to assembler version of MD5.
6020 *) Set #! path to perl in apps/der_chop to where we found it
6021 instead of using a fixed path.
6024 *) SHA library changes for irix64-mips4-cc.
6027 *) Improvements for VMS support.
6031 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6033 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6034 This also avoids the problems with SC4.2 and unpatched SC5.
6035 [Andy Polyakov <appro@fy.chalmers.se>]
6037 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6038 These are required because of the typesafe stack would otherwise break
6039 existing code. If old code used a structure member which used to be STACK
6040 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6041 sk_num or sk_value it would produce an error because the num, data members
6042 are not present in STACK_OF. Now it just produces a warning. sk_set
6043 replaces the old method of assigning a value to sk_value
6044 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6045 that does this will no longer work (and should use sk_set instead) but
6046 this could be regarded as a "questionable" behaviour anyway.
6049 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6050 correctly handle encrypted S/MIME data.
6053 *) Change type of various DES function arguments from des_cblock
6054 (which means, in function argument declarations, pointer to char)
6055 to des_cblock * (meaning pointer to array with 8 char elements),
6056 which allows the compiler to do more typechecking; it was like
6057 that back in SSLeay, but with lots of ugly casts.
6059 Introduce new type const_des_cblock.
6062 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6063 problems: find RecipientInfo structure that matches recipient certificate
6064 and initialise the ASN1 structures properly based on passed cipher.
6067 *) Belatedly make the BN tests actually check the results.
6070 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6071 to and from BNs: it was completely broken. New compilation option
6072 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6073 key elements as negative integers.
6076 *) Reorganize and speed up MD5.
6077 [Andy Polyakov <appro@fy.chalmers.se>]
6080 [Richard Levitte <richard@levitte.org>]
6082 *) New option -out to asn1parse to allow the parsed structure to be
6083 output to a file. This is most useful when combined with the -strparse
6084 option to examine the output of things like OCTET STRINGS.
6087 *) Make SSL library a little more fool-proof by not requiring any longer
6088 that SSL_set_{accept,connect}_state be called before
6089 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6090 in many applications because usually everything *appeared* to work as
6091 intended anyway -- now it really works as intended).
6094 *) Move openssl.cnf out of lib/.
6097 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6098 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6099 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6100 [Ralf S. Engelschall]
6102 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6103 handle PKCS#7 enveloped data properly.
6104 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6106 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6107 copying pointers. The cert_st handling is changed by this in
6108 various ways (and thus what used to be known as ctx->default_cert
6109 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6110 any longer when s->cert does not give us what we need).
6111 ssl_cert_instantiate becomes obsolete by this change.
6112 As soon as we've got the new code right (possibly it already is?),
6113 we have solved a couple of bugs of the earlier code where s->cert
6114 was used as if it could not have been shared with other SSL structures.
6116 Note that using the SSL API in certain dirty ways now will result
6117 in different behaviour than observed with earlier library versions:
6118 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6119 does not influence s as it used to.
6121 In order to clean up things more thoroughly, inside SSL_SESSION
6122 we don't use CERT any longer, but a new structure SESS_CERT
6123 that holds per-session data (if available); currently, this is
6124 the peer's certificate chain and, for clients, the server's certificate
6125 and temporary key. CERT holds only those values that can have
6126 meaningful defaults in an SSL_CTX.
6129 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6130 from the internal representation. Various PKCS#7 fixes: remove some
6131 evil casts and set the enc_dig_alg field properly based on the signing
6135 *) Allow PKCS#12 password to be set from the command line or the
6136 environment. Let 'ca' get its config file name from the environment
6137 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6141 *) Allow certificate policies extension to use an IA5STRING for the
6142 organization field. This is contrary to the PKIX definition but
6143 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6147 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6148 without disallowing inline assembler and the like for non-pedantic builds.
6151 *) Support Borland C++ builder.
6152 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6157 *) SHA-1 cleanups and performance enhancements.
6158 [Andy Polyakov <appro@fy.chalmers.se>]
6160 *) Sparc v8plus assembler for the bignum library.
6161 [Andy Polyakov <appro@fy.chalmers.se>]
6163 *) Accept any -xxx and +xxx compiler options in Configure.
6166 *) Update HPUX configuration.
6169 *) Add missing sk_<type>_unshift() function to safestack.h
6170 [Ralf S. Engelschall]
6172 *) New function SSL_CTX_use_certificate_chain_file that sets the
6173 "extra_cert"s in addition to the certificate. (This makes sense
6174 only for "PEM" format files, as chains as a whole are not
6178 *) Support verify_depth from the SSL API.
6179 x509_vfy.c had what can be considered an off-by-one-error:
6180 Its depth (which was not part of the external interface)
6181 was actually counting the number of certificates in a chain;
6182 now it really counts the depth.
6185 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6186 instead of X509err, which often resulted in confusing error
6187 messages since the error codes are not globally unique
6188 (e.g. an alleged error in ssl3_accept when a certificate
6189 didn't match the private key).
6191 *) New function SSL_CTX_set_session_id_context that allows to set a default
6192 value (so that you don't need SSL_set_session_id_context for each
6193 connection using the SSL_CTX).
6196 *) OAEP decoding bug fix.
6199 *) Support INSTALL_PREFIX for package builders, as proposed by
6203 *) New Configure options "threads" and "no-threads". For systems
6204 where the proper compiler options are known (currently Solaris
6205 and Linux), "threads" is the default.
6208 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6211 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6212 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6213 such as /usr/local/bin.
6216 *) "make linux-shared" to build shared libraries.
6217 [Niels Poppe <niels@netbox.org>]
6219 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6222 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6223 extension adding in x509 utility.
6226 *) Remove NOPROTO sections and error code comments.
6229 *) Partial rewrite of the DEF file generator to now parse the ANSI
6233 *) New Configure options --prefix=DIR and --openssldir=DIR.
6236 *) Complete rewrite of the error code script(s). It is all now handled
6237 by one script at the top level which handles error code gathering,
6238 header rewriting and C source file generation. It should be much better
6239 than the old method: it now uses a modified version of Ulf's parser to
6240 read the ANSI prototypes in all header files (thus the old K&R definitions
6241 aren't needed for error creation any more) and do a better job of
6242 translating function codes into names. The old 'ASN1 error code imbedded
6243 in a comment' is no longer necessary and it doesn't use .err files which
6244 have now been deleted. Also the error code call doesn't have to appear all
6245 on one line (which resulted in some large lines...).
6248 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6251 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6252 0 (which usually indicates a closed connection), but continue reading.
6255 *) Fix some race conditions.
6258 *) Add support for CRL distribution points extension. Add Certificate
6259 Policies and CRL distribution points documentation.
6262 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6265 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6266 8 of keying material. Merlin has also confirmed interop with this fix
6267 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6268 [Merlin Hughes <merlin@baltimore.ie>]
6270 *) Fix lots of warnings.
6271 [Richard Levitte <levitte@stacken.kth.se>]
6273 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6274 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6275 [Richard Levitte <levitte@stacken.kth.se>]
6277 *) Fix problems with sizeof(long) == 8.
6278 [Andy Polyakov <appro@fy.chalmers.se>]
6280 *) Change functions to ANSI C.
6283 *) Fix typos in error codes.
6284 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6286 *) Remove defunct assembler files from Configure.
6289 *) SPARC v8 assembler BIGNUM implementation.
6290 [Andy Polyakov <appro@fy.chalmers.se>]
6292 *) Support for Certificate Policies extension: both print and set.
6293 Various additions to support the r2i method this uses.
6296 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6297 return a const string when you are expecting an allocated buffer.
6300 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6301 types DirectoryString and DisplayText.
6304 *) Add code to allow r2i extensions to access the configuration database,
6305 add an LHASH database driver and add several ctx helper functions.
6308 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6309 fail when they extended the size of a BIGNUM.
6312 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6313 support typesafe stack.
6316 *) Fix typo in SSL_[gs]et_options().
6317 [Nils Frostberg <nils@medcom.se>]
6319 *) Delete various functions and files that belonged to the (now obsolete)
6320 old X509V3 handling code.
6323 *) New Configure option "rsaref".
6326 *) Don't auto-generate pem.h.
6329 *) Introduce type-safe ASN.1 SETs.
6332 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6333 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6335 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6336 that links with OpenSSL (well at least cause lots of warnings), but fear
6337 not: the conversion is trivial, and it eliminates loads of evil casts. A
6338 few STACKed things have been converted already. Feel free to convert more.
6339 In the fullness of time, I'll do away with the STACK type altogether.
6342 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6343 specified in <certfile> by updating the entry in the index.txt file.
6344 This way one no longer has to edit the index.txt file manually for
6345 revoking a certificate. The -revoke option does the gory details now.
6346 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6348 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6349 `-text' option at all and this way the `-noout -text' combination was
6350 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6351 [Ralf S. Engelschall]
6353 *) Make sure a corresponding plain text error message exists for the
6354 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6355 verify callback function determined that a certificate was revoked.
6356 [Ralf S. Engelschall]
6358 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6359 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6360 all available cipers including rc5, which was forgotten until now.
6361 In order to let the testing shell script know which algorithms
6362 are available, a new (up to now undocumented) command
6363 "openssl list-cipher-commands" is used.
6366 *) Bugfix: s_client occasionally would sleep in select() when
6367 it should have checked SSL_pending() first.
6370 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6371 the raw DSA values prior to ASN.1 encoding.
6374 *) Tweaks to Configure
6375 [Niels Poppe <niels@netbox.org>]
6377 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6381 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6384 *) New config option to avoid instructions that are illegal on the 80386.
6385 The default code is faster, but requires at least a 486.
6388 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6389 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6390 same as SSL2_VERSION anyway.
6393 *) New "-showcerts" option for s_client.
6396 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6397 application. Various cleanups and fixes.
6400 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6401 modify error routines to work internally. Add error codes and PBE init
6402 to library startup routines.
6405 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6406 packing functions to asn1 and evp. Changed function names and error
6407 codes along the way.
6410 *) PKCS12 integration: and so it begins... First of several patches to
6411 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6412 objects to objects.h
6415 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6416 and display support for Thawte strong extranet extension.
6419 *) Add LinuxPPC support.
6420 [Jeff Dubrule <igor@pobox.org>]
6422 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6423 bn_div_words in alpha.s.
6424 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6426 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6427 OAEP isn't supported when OpenSSL is built with RSAref.
6428 [Ulf Moeller <ulf@fitug.de>]
6430 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6431 so they no longer are missing under -DNOPROTO.
6432 [Soren S. Jorvang <soren@t.dk>]
6435 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6437 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6438 doesn't work when the session is reused. Coming soon!
6441 *) Fix a security hole, that allows sessions to be reused in the wrong
6442 context thus bypassing client cert protection! All software that uses
6443 client certs and session caches in multiple contexts NEEDS PATCHING to
6444 allow session reuse! A fuller solution is in the works.
6445 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6447 *) Some more source tree cleanups (removed obsolete files
6448 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6449 permission on "config" script to be executable) and a fix for the INSTALL
6451 [Ulf Moeller <ulf@fitug.de>]
6453 *) Remove some legacy and erroneous uses of malloc, free instead of
6455 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6457 *) Make rsa_oaep_test return non-zero on error.
6458 [Ulf Moeller <ulf@fitug.de>]
6460 *) Add support for native Solaris shared libraries. Configure
6461 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6462 if someone would make that last step automatic.
6463 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6465 *) ctx_size was not built with the right compiler during "make links". Fixed.
6468 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6469 except NULL ciphers". This means the default cipher list will no longer
6470 enable NULL ciphers. They need to be specifically enabled e.g. with
6471 the string "DEFAULT:eNULL".
6474 *) Fix to RSA private encryption routines: if p < q then it would
6475 occasionally produce an invalid result. This will only happen with
6476 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6479 *) Be less restrictive and allow also `perl util/perlpath.pl
6480 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6481 because this way one can also use an interpreter named `perl5' (which is
6482 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6483 installed as `perl').
6484 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6486 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6487 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6489 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6490 advapi32.lib to Win32 build and change the pem test comparision
6491 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6492 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6493 and crypto/des/ede_cbcm_enc.c.
6496 *) DES quad checksum was broken on big-endian architectures. Fixed.
6499 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6500 Win32 test batch file so it (might) work again. The Win32 test batch file
6501 is horrible: I feel ill....
6504 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6505 in e_os.h. Audit of header files to check ANSI and non ANSI
6506 sections: 10 functions were absent from non ANSI section and not exported
6507 from Windows DLLs. Fixed up libeay.num for new functions.
6510 *) Make `openssl version' output lines consistent.
6511 [Ralf S. Engelschall]
6513 *) Fix Win32 symbol export lists for BIO functions: Added
6514 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6515 to ms/libeay{16,32}.def.
6516 [Ralf S. Engelschall]
6518 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6519 fine under Unix and passes some trivial tests I've now added. But the
6520 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6521 added to make sure no one expects that this stuff really works in the
6522 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6523 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6525 [Ralf S. Engelschall]
6527 *) Fix the generation of two part addresses in perl.
6528 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6530 *) Add config entry for Linux on MIPS.
6531 [John Tobey <jtobey@channel1.com>]
6533 *) Make links whenever Configure is run, unless we are on Windoze.
6536 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6537 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6541 *) Add a useful kludge to allow package maintainers to specify compiler and
6542 other platforms details on the command line without having to patch the
6543 Configure script everytime: One now can use ``perl Configure
6544 <id>:<details>'', i.e. platform ids are allowed to have details appended
6545 to them (seperated by colons). This is treated as there would be a static
6546 pre-configured entry in Configure's %table under key <id> with value
6547 <details> and ``perl Configure <id>'' is called. So, when you want to
6548 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6549 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6550 now, which overrides the FreeBSD-elf entry on-the-fly.
6551 [Ralf S. Engelschall]
6553 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6556 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6557 on the `perl Configure ...' command line. This way one can compile
6558 OpenSSL libraries with Position Independent Code (PIC) which is needed
6559 for linking it into DSOs.
6560 [Ralf S. Engelschall]
6562 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6566 *) Cleaned up the LICENSE document: The official contact for any license
6567 questions now is the OpenSSL core team under openssl-core@openssl.org.
6568 And add a paragraph about the dual-license situation to make sure people
6569 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6570 to the OpenSSL toolkit.
6571 [Ralf S. Engelschall]
6573 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6574 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6575 Additonally cleaned up the `make links' target: Remove unnecessary
6576 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6577 to speed processing and no longer clutter the display with confusing
6578 stuff. Instead only the actually done links are displayed.
6579 [Ralf S. Engelschall]
6581 *) Permit null encryption ciphersuites, used for authentication only. It used
6582 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6583 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6587 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6588 signed attributes when verifying signatures (this would break them),
6589 the detached data encoding was wrong and public keys obtained using
6590 X509_get_pubkey() weren't freed.
6593 *) Add text documentation for the BUFFER functions. Also added a work around
6594 to a Win95 console bug. This was triggered by the password read stuff: the
6595 last character typed gets carried over to the next fread(). If you were
6596 generating a new cert request using 'req' for example then the last
6597 character of the passphrase would be CR which would then enter the first
6601 *) Added the new `Includes OpenSSL Cryptography Software' button as
6602 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6603 button and can be used by applications based on OpenSSL to show the
6604 relationship to the OpenSSL project.
6605 [Ralf S. Engelschall]
6607 *) Remove confusing variables in function signatures in files
6608 ssl/ssl_lib.c and ssl/ssl.h.
6609 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6611 *) Don't install bss_file.c under PREFIX/include/
6612 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6614 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6615 functions that return function pointers and has support for NT specific
6616 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6617 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6618 unsigned to signed types: this was killing the Win32 compile.
6621 *) Add new certificate file to stack functions,
6622 SSL_add_dir_cert_subjects_to_stack() and
6623 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6624 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6625 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6626 This means that Apache-SSL and similar packages don't have to mess around
6627 to add as many CAs as they want to the preferred list.
6630 *) Experiment with doxygen documentation. Currently only partially applied to
6632 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6633 openssl.doxy as the configuration file.
6636 *) Get rid of remaining C++-style comments which strict C compilers hate.
6637 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6639 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6640 compiled in by default: it has problems with large keys.
6643 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6644 DH private keys and/or callback functions which directly correspond to
6645 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6646 is needed for applications which have to configure certificates on a
6647 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6649 For the RSA certificate situation is makes no difference, but
6650 for the DSA certificate situation this fixes the "no shared cipher"
6651 problem where the OpenSSL cipher selection procedure failed because the
6652 temporary keys were not overtaken from the context and the API provided
6653 no way to reconfigure them.
6654 The new functions now let applications reconfigure the stuff and they
6655 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6656 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6657 non-public-API function ssl_cert_instantiate() is used as a helper
6658 function and also to reduce code redundancy inside ssl_rsa.c.
6659 [Ralf S. Engelschall]
6661 *) Move s_server -dcert and -dkey options out of the undocumented feature
6662 area because they are useful for the DSA situation and should be
6663 recognized by the users.
6664 [Ralf S. Engelschall]
6666 *) Fix the cipher decision scheme for export ciphers: the export bits are
6667 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6668 SSL_EXP_MASK. So, the original variable has to be used instead of the
6669 already masked variable.
6670 [Richard Levitte <levitte@stacken.kth.se>]
6672 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6673 [Richard Levitte <levitte@stacken.kth.se>]
6675 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6676 from `int' to `unsigned int' because it's a length and initialized by
6677 EVP_DigestFinal() which expects an `unsigned int *'.
6678 [Richard Levitte <levitte@stacken.kth.se>]
6680 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6681 script. Instead use the usual Shell->Perl transition trick.
6682 [Ralf S. Engelschall]
6684 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6685 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6686 -noout -modulus' as it's already the case for `openssl rsa -noout
6687 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6688 currently the public key is printed (a decision which was already done by
6689 `openssl dsa -modulus' in the past) which serves a similar purpose.
6690 Additionally the NO_RSA no longer completely removes the whole -modulus
6691 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6693 [Ralf S. Engelschall]
6695 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6696 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6697 [Arne Ansper <arne@ats.cyber.ee>]
6699 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6700 to be added. Now both 'req' and 'ca' can use new objects defined in the
6704 *) Add cool BIO that does syslog (or event log on NT).
6705 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6707 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6708 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6709 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6710 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6713 *) Add preliminary config info for new extension code.
6716 *) Make RSA_NO_PADDING really use no padding.
6717 [Ulf Moeller <ulf@fitug.de>]
6719 *) Generate errors when private/public key check is done.
6722 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6723 for some CRL extensions and new objects added.
6726 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6727 key usage extension and fuller support for authority key id.
6730 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6731 padding method for RSA, which is recommended for new applications in PKCS
6732 #1 v2.0 (RFC 2437, October 1998).
6733 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6734 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6735 against Bleichbacher's attack on RSA.
6736 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6739 *) Updates to the new SSL compression code
6740 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6742 *) Fix so that the version number in the master secret, when passed
6743 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6744 (because the server will not accept higher), that the version number
6745 is 0x03,0x01, not 0x03,0x00
6746 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6748 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6749 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6750 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6753 *) Support for RAW extensions where an arbitrary extension can be
6754 created by including its DER encoding. See apps/openssl.cnf for
6758 *) Make sure latest Perl versions don't interpret some generated C array
6759 code as Perl array code in the crypto/err/err_genc.pl script.
6760 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6762 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6763 not many people have the assembler. Various Win32 compilation fixes and
6764 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6768 *) Modify configure script 'Configure' to automatically create crypto/date.h
6769 file under Win32 and also build pem.h from pem.org. New script
6770 util/mkfiles.pl to create the MINFO file on environments that can't do a
6771 'make files': perl util/mkfiles.pl >MINFO should work.
6774 *) Major rework of DES function declarations, in the pursuit of correctness
6775 and purity. As a result, many evil casts evaporated, and some weirdness,
6776 too. You may find this causes warnings in your code. Zapping your evil
6777 casts will probably fix them. Mostly.
6780 *) Fix for a typo in asn1.h. Bug fix to object creation script
6781 obj_dat.pl. It considered a zero in an object definition to mean
6782 "end of object": none of the objects in objects.h have any zeros
6783 so it wasn't spotted.
6784 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6786 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6787 Masking (CBCM). In the absence of test vectors, the best I have been able
6788 to do is check that the decrypt undoes the encrypt, so far. Send me test
6789 vectors if you have them.
6792 *) Correct calculation of key length for export ciphers (too much space was
6793 allocated for null ciphers). This has not been tested!
6796 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6797 message is now correct (it understands "crypto" and "ssl" on its
6798 command line). There is also now an "update" option. This will update
6799 the util/ssleay.num and util/libeay.num files with any new functions.
6801 perl util/mkdef.pl crypto ssl update
6802 it will update them.
6805 *) Overhauled the Perl interface (perl/*):
6806 - ported BN stuff to OpenSSL's different BN library
6807 - made the perl/ source tree CVS-aware
6808 - renamed the package from SSLeay to OpenSSL (the files still contain
6809 their history because I've copied them in the repository)
6810 - removed obsolete files (the test scripts will be replaced
6811 by better Test::Harness variants in the future)
6812 [Ralf S. Engelschall]
6814 *) First cut for a very conservative source tree cleanup:
6815 1. merge various obsolete readme texts into doc/ssleay.txt
6816 where we collect the old documents and readme texts.
6817 2. remove the first part of files where I'm already sure that we no
6818 longer need them because of three reasons: either they are just temporary
6819 files which were left by Eric or they are preserved original files where
6820 I've verified that the diff is also available in the CVS via "cvs diff
6821 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6822 the crypto/md/ stuff).
6823 [Ralf S. Engelschall]
6825 *) More extension code. Incomplete support for subject and issuer alt
6826 name, issuer and authority key id. Change the i2v function parameters
6827 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6828 what that's for :-) Fix to ASN1 macro which messed up
6829 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6832 *) Preliminary support for ENUMERATED type. This is largely copied from the
6836 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6837 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6839 *) Make sure `make rehash' target really finds the `openssl' program.
6840 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6842 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6843 like to hear about it if this slows down other processors.
6846 *) Add CygWin32 platform information to Configure script.
6847 [Alan Batie <batie@aahz.jf.intel.com>]
6849 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6850 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6852 *) New program nseq to manipulate netscape certificate sequences
6855 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6859 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6860 but the BN code had some problems that would cause failures when
6861 doing certificate verification and some other functions.
6862 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6864 *) Add ASN1 and PEM code to support netscape certificate sequences.
6867 *) Add ASN1 and PEM code to support netscape certificate sequences.
6870 *) Add several PKIX and private extended key usage OIDs.
6873 *) Modify the 'ca' program to handle the new extension code. Modify
6874 openssl.cnf for new extension format, add comments.
6877 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6878 and add a sample to openssl.cnf so req -x509 now adds appropriate
6882 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6883 error code, add initial support to X509_print() and x509 application.
6886 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6887 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6888 stuff is currently isolated and isn't even compiled yet.
6891 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6892 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6893 Removed the versions check from X509 routines when loading extensions:
6894 this allows certain broken certificates that don't set the version
6895 properly to be processed.
6898 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6899 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6900 can still be regenerated with "make depend".
6903 *) Spelling mistake in C version of CAST-128.
6904 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6906 *) Changes to the error generation code. The perl script err-code.pl
6907 now reads in the old error codes and retains the old numbers, only
6908 adding new ones if necessary. It also only changes the .err files if new
6909 codes are added. The makefiles have been modified to only insert errors
6910 when needed (to avoid needlessly modifying header files). This is done
6911 by only inserting errors if the .err file is newer than the auto generated
6912 C file. To rebuild all the error codes from scratch (the old behaviour)
6913 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6914 or delete all the .err files.
6917 *) CAST-128 was incorrectly implemented for short keys. The C version has
6918 been fixed, but is untested. The assembler versions are also fixed, but
6919 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6920 to regenerate it if needed.
6921 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6922 Hagino <itojun@kame.net>]
6924 *) File was opened incorrectly in randfile.c.
6925 [Ulf Möller <ulf@fitug.de>]
6927 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6928 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6929 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6930 al: it's just almost always a UTCTime. Note this patch adds new error
6931 codes so do a "make errors" if there are problems.
6934 *) Correct Linux 1 recognition in config.
6935 [Ulf Möller <ulf@fitug.de>]
6937 *) Remove pointless MD5 hash when using DSA keys in ca.
6938 [Anonymous <nobody@replay.com>]
6940 *) Generate an error if given an empty string as a cert directory. Also
6941 generate an error if handed NULL (previously returned 0 to indicate an
6942 error, but didn't set one).
6943 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6945 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6948 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6949 parameters. This was causing a warning which killed off the Win32 compile.
6952 *) Remove C++ style comments from crypto/bn/bn_local.h.
6953 [Neil Costigan <neil.costigan@celocom.com>]
6955 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6956 based on a text string, looking up short and long names and finally
6957 "dot" format. The "dot" format stuff didn't work. Added new function
6958 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6959 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6960 OID is not part of the table.
6963 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6964 X509_LOOKUP_by_alias().
6967 *) Sort openssl functions by name.
6970 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6971 encryption from sample DSA keys (in case anyone is interested the password
6975 *) Make _all_ *_free functions accept a NULL pointer.
6976 [Frans Heymans <fheymans@isaserver.be>]
6978 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6980 [Anonymous <nobody@replay.com>]
6982 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6983 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6985 *) Don't blow it for numeric -newkey arguments to apps/req.
6986 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6988 *) Temp key "for export" tests were wrong in s3_srvr.c.
6989 [Anonymous <nobody@replay.com>]
6991 *) Add prototype for temp key callback functions
6992 SSL_CTX_set_tmp_{rsa,dh}_callback().
6995 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6996 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6999 *) X509_name_add_entry() freed the wrong thing after an error.
7000 [Arne Ansper <arne@ats.cyber.ee>]
7002 *) rsa_eay.c would attempt to free a NULL context.
7003 [Arne Ansper <arne@ats.cyber.ee>]
7005 *) BIO_s_socket() had a broken should_retry() on Windoze.
7006 [Arne Ansper <arne@ats.cyber.ee>]
7008 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7009 [Arne Ansper <arne@ats.cyber.ee>]
7011 *) Make sure the already existing X509_STORE->depth variable is initialized
7012 in X509_STORE_new(), but document the fact that this variable is still
7013 unused in the certificate verification process.
7014 [Ralf S. Engelschall]
7016 *) Fix the various library and apps files to free up pkeys obtained from
7017 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7020 *) Fix reference counting in X509_PUBKEY_get(). This makes
7021 demos/maurice/example2.c work, amongst others, probably.
7022 [Steve Henson and Ben Laurie]
7024 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7025 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7026 are no longer created. This way we have a single and consistent command
7027 line interface `openssl <command>', similar to `cvs <command>'.
7028 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7030 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7031 BIT STRING wrapper always have zero unused bits.
7034 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7037 *) Make the top-level INSTALL documentation easier to understand.
7040 *) Makefiles updated to exit if an error occurs in a sub-directory
7041 make (including if user presses ^C) [Paul Sutton]
7043 *) Make Montgomery context stuff explicit in RSA data structure.
7046 *) Fix build order of pem and err to allow for generated pem.h.
7049 *) Fix renumbering bug in X509_NAME_delete_entry().
7052 *) Enhanced the err-ins.pl script so it makes the error library number
7053 global and can add a library name. This is needed for external ASN1 and
7054 other error libraries.
7057 *) Fixed sk_insert which never worked properly.
7060 *) Fix ASN1 macros so they can handle indefinite length construted
7061 EXPLICIT tags. Some non standard certificates use these: they can now
7065 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7066 into a single doc/ssleay.txt bundle. This way the information is still
7067 preserved but no longer messes up this directory. Now it's new room for
7068 the new set of documenation files.
7069 [Ralf S. Engelschall]
7071 *) SETs were incorrectly DER encoded. This was a major pain, because they
7072 shared code with SEQUENCEs, which aren't coded the same. This means that
7073 almost everything to do with SETs or SEQUENCEs has either changed name or
7074 number of arguments.
7075 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7077 *) Fix test data to work with the above.
7080 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7081 was already fixed by Eric for 0.9.1 it seems.
7082 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7084 *) Autodetect FreeBSD3.
7087 *) Fix various bugs in Configure. This affects the following platforms:
7091 unixware-2.0-pentium
7095 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7096 before they are needed.
7099 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7103 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7105 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7106 changed SSLeay to OpenSSL in version strings.
7107 [Ralf S. Engelschall]
7109 *) Some fixups to the top-level documents.
7112 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7113 because the symlink to include/ was missing.
7114 [Ralf S. Engelschall]
7116 *) Incorporated the popular no-RSA/DSA-only patches
7117 which allow to compile a RSA-free SSLeay.
7118 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7120 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7121 when "ssleay" is still not found.
7122 [Ralf S. Engelschall]
7124 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7125 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7127 *) Updated the README file.
7128 [Ralf S. Engelschall]
7130 *) Added various .cvsignore files in the CVS repository subdirs
7131 to make a "cvs update" really silent.
7132 [Ralf S. Engelschall]
7134 *) Recompiled the error-definition header files and added
7135 missing symbols to the Win32 linker tables.
7136 [Ralf S. Engelschall]
7138 *) Cleaned up the top-level documents;
7139 o new files: CHANGES and LICENSE
7140 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7141 o merged COPYRIGHT into LICENSE
7142 o removed obsolete TODO file
7143 o renamed MICROSOFT to INSTALL.W32
7144 [Ralf S. Engelschall]
7146 *) Removed dummy files from the 0.9.1b source tree:
7147 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7148 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7149 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7150 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7151 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7152 [Ralf S. Engelschall]
7154 *) Added various platform portability fixes.
7157 *) The Genesis of the OpenSSL rpject:
7158 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7159 Young and Tim J. Hudson created while they were working for C2Net until
7161 [The OpenSSL Project]
7164 Changes between 0.9.0b and 0.9.1b [not released]
7166 *) Updated a few CA certificates under certs/
7169 *) Changed some BIGNUM api stuff.
7172 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7173 DGUX x86, Linux Alpha, etc.
7176 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7177 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7181 *) Add -strparse option to asn1pars program which parses nested
7183 [Dr Stephen Henson <shenson@bigfoot.com>]
7185 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7188 *) DSA fix for "ca" program.
7191 *) Added "-genkey" option to "dsaparam" program.
7194 *) Added RIPE MD160 (rmd160) message digest.
7197 *) Added -a (all) option to "ssleay version" command.
7200 *) Added PLATFORM define which is the id given to Configure.
7203 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7206 *) Extended the ASN.1 parser routines.
7209 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7212 *) Added a BN_CTX to the BN library.
7215 *) Fixed the weak key values in DES library
7218 *) Changed API in EVP library for cipher aliases.
7221 *) Added support for RC2/64bit cipher.
7224 *) Converted the lhash library to the crypto/mem.c functions.
7227 *) Added more recognized ASN.1 object ids.
7230 *) Added more RSA padding checks for SSL/TLS.
7233 *) Added BIO proxy/filter functionality.
7236 *) Added extra_certs to SSL_CTX which can be used
7237 send extra CA certificates to the client in the CA cert chain sending
7238 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7241 *) Now Fortezza is denied in the authentication phase because
7242 this is key exchange mechanism is not supported by SSLeay at all.
7245 *) Additional PKCS1 checks.
7248 *) Support the string "TLSv1" for all TLS v1 ciphers.
7251 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7252 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7255 *) Fixed a few memory leaks.
7258 *) Fixed various code and comment typos.
7261 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7262 bytes sent in the client random.
7263 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob