5 Changes between 0.9.7e and 0.9.8 [xx XXX xxxx]
7 *) Improved PowerPC platform support. Most notably BIGNUM assembler
8 implementation contributed by IBM.
9 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
11 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
12 exponent rather than 'unsigned long'. There is a corresponding change to
13 the new 'rsa_keygen' element of the RSA_METHOD structure.
14 [Jelte Jansen, Geoff Thorpe]
16 *) Functionality for creating the initial serial number file is now
17 moved from CA.pl to the 'ca' utility with a new option -create_serial.
19 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
20 number file to 1, which is bound to cause problems. To avoid
21 the problems while respecting compatibility between different 0.9.7
22 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
23 CA.pl for serial number initialization. With the new release 0.9.8,
24 we can fix the problem directly in the 'ca' utility.)
27 *) Reduced header interdepencies by declaring more opaque objects in
28 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
29 give fewer recursive includes, which could break lazy source code - so
30 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
31 developers should define this symbol when building and using openssl to
32 ensure they track the recommended behaviour, interfaces, [etc], but
33 backwards-compatible behaviour prevails when this isn't defined.
36 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
39 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
40 This will generate a random key of the appropriate length based on the
41 cipher context. The EVP_CIPHER can provide its own random key generation
42 routine to support keys of a specific form. This is used in the des and
43 3des routines to generate a key of the correct parity. Update S/MIME
44 code to use new functions and hence generate correct parity DES keys.
45 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
46 valid (weak or incorrect parity).
49 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
50 as looking them up. This is useful when the verified structure may contain
51 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
52 present unless the new PKCS7_NO_CRL flag is asserted.
55 *) Extend ASN1 oid configuration module. It now additionally accepts the
58 shortName = some long name, 1.2.3.4
61 *) Reimplemented the BN_CTX implementation. There is now no more static
62 limitation on the number of variables it can handle nor the depth of the
63 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
64 information can now expand as required, and rather than having a single
65 static array of bignums, BN_CTX now uses a linked-list of such arrays
66 allowing it to expand on demand whilst maintaining the usefulness of
70 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
71 to allow all RSA operations to function using a single BN_CTX.
74 *) Preliminary support for certificate policy evaluation and checking. This
75 is initially intended to pass the tests outlined in "Conformance Testing
76 of Relying Party Client Certificate Path Processing Logic" v1.07.
79 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
80 remained unused and not that useful. A variety of other little bignum
81 tweaks and fixes have also been made continuing on from the audit (see
85 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
86 associated ASN1, EVP and SSL functions and old ASN1 macros.
89 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
90 and this should never fail. So the return value from the use of
91 BN_set_word() (which can fail due to needless expansion) is now deprecated;
92 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
95 *) BN_CTX_get() should return zero-valued bignums, providing the same
96 initialised value as BN_new().
97 [Geoff Thorpe, suggested by Ulf Möller]
99 *) Support for inhibitAnyPolicy certificate extension.
102 *) An audit of the BIGNUM code is underway, for which debugging code is
103 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
104 is considered valid when processing BIGNUMs, and causes execution to
105 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
106 further steps are taken to deliberately pollute unused data in BIGNUM
107 structures to try and expose faulty code further on. For now, openssl will
108 (in its default mode of operation) continue to tolerate the inconsistent
109 forms that it has tolerated in the past, but authors and packagers should
110 consider trying openssl and their own applications when compiled with
111 these debugging symbols defined. It will help highlight potential bugs in
112 their own code, and will improve the test coverage for OpenSSL itself. At
113 some point, these tighter rules will become openssl's default to improve
114 maintainability, though the assert()s and other overheads will remain only
115 in debugging configurations. See bn.h for more details.
116 [Geoff Thorpe, Nils Larsch, Ulf Möller]
118 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
119 that can only be obtained through BN_CTX_new() (which implicitly
120 initialises it). The presence of this function only made it possible
121 to overwrite an existing structure (and cause memory leaks).
124 *) Because of the callback-based approach for implementing LHASH as a
125 template type, lh_insert() adds opaque objects to hash-tables and
126 lh_doall() or lh_doall_arg() are typically used with a destructor callback
127 to clean up those corresponding objects before destroying the hash table
128 (and losing the object pointers). So some over-zealous constifications in
129 LHASH have been relaxed so that lh_insert() does not take (nor store) the
130 objects as "const" and the lh_doall[_arg] callback wrappers are not
131 prototyped to have "const" restrictions on the object pointers they are
132 given (and so aren't required to cast them away any more).
135 *) The tmdiff.h API was so ugly and minimal that our own timing utility
136 (speed) prefers to use its own implementation. The two implementations
137 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
138 its object type properly exposed (MS_TM) instead of casting to/from "char
139 *". This may still change yet if someone realises MS_TM and "ms_time_***"
140 aren't necessarily the greatest nomenclatures - but this is what was used
141 internally to the implementation so I've used that for now.
144 *) Ensure that deprecated functions do not get compiled when
145 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
146 the self-tests were still using deprecated key-generation functions so
147 these have been updated also.
150 *) Reorganise PKCS#7 code to separate the digest location functionality
151 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
152 New function PKCS7_set_digest() to set the digest type for PKCS#7
153 digestedData type. Add additional code to correctly generate the
154 digestedData type and add support for this type in PKCS7 initialization
158 *) New function PKCS7_set0_type_other() this initializes a PKCS7
159 structure of type "other".
162 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
163 sure the loop does correctly stop and breaking ("division by zero")
164 modulus operations are not performed. The (pre-generated) prime
165 table crypto/bn/bn_prime.h was already correct, but it could not be
166 re-generated on some platforms because of the "division by zero"
167 situation in the script.
168 [Ralf S. Engelschall]
170 *) Update support for ECC-based TLS ciphersuites according to
171 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
172 SHA-1 now is only used for "small" curves (where the
173 representation of a field element takes up to 24 bytes); for
174 larger curves, the field element resulting from ECDH is directly
175 used as premaster secret.
176 [Douglas Stebila (Sun Microsystems Laboratories)]
178 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
179 curve secp160r1 to the tests.
180 [Douglas Stebila (Sun Microsystems Laboratories)]
182 *) Add the possibility to load symbols globally with DSO.
183 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
185 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
186 control of the error stack.
189 *) Add support for STORE in ENGINE.
192 *) Add the STORE type. The intention is to provide a common interface
193 to certificate and key stores, be they simple file-based stores, or
194 HSM-type store, or LDAP stores, or...
195 NOTE: The code is currently UNTESTED and isn't really used anywhere.
198 *) Add a generic structure called OPENSSL_ITEM. This can be used to
199 pass a list of arguments to any function as well as provide a way
200 for a function to pass data back to the caller.
203 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
204 works like BUF_strdup() but can be used to duplicate a portion of
205 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
209 *) Add the function sk_find_ex() which works like sk_find(), but will
210 return an index to an element even if an exact match couldn't be
211 found. The index is guaranteed to point at the element where the
212 searched-for key would be inserted to preserve sorting order.
215 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
216 takes an extra flags argument for optional functionality. Currently,
217 the following flags are defined:
219 OBJ_BSEARCH_VALUE_ON_NOMATCH
220 This one gets OBJ_bsearch_ex() to return a pointer to the first
221 element where the comparing function returns a negative or zero
224 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
225 This one gets OBJ_bsearch_ex() to return a pointer to the first
226 element where the comparing function returns zero. This is useful
227 if there are more than one element where the comparing function
231 *) Make it possible to create self-signed certificates with 'openssl ca'
232 in such a way that the self-signed certificate becomes part of the
233 CA database and uses the same mechanisms for serial number generation
234 as all other certificate signing. The new flag '-selfsign' enables
235 this functionality. Adapt CA.sh and CA.pl.in.
238 *) Add functionality to check the public key of a certificate request
239 against a given private. This is useful to check that a certificate
240 request can be signed by that key (self-signing).
243 *) Make it possible to have multiple active certificates with the same
244 subject in the CA index file. This is done only if the keyword
245 'unique_subject' is set to 'no' in the main CA section (default
246 if 'CA_default') of the configuration file. The value is saved
247 with the database itself in a separate index attribute file,
248 named like the index file with '.attr' appended to the name.
251 *) Generate muti valued AVAs using '+' notation in config files for
255 *) Support for nameConstraints certificate extension.
258 *) Support for policyConstraints certificate extension.
261 *) Support for policyMappings certificate extension.
264 *) Make sure the default DSA_METHOD implementation only uses its
265 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
266 and change its own handlers to be NULL so as to remove unnecessary
267 indirection. This lets alternative implementations fallback to the
268 default implementation more easily.
271 *) Support for directoryName in GeneralName related extensions
275 *) Make it possible to link applications using Makefile.shared.
276 Make that possible even when linking against static libraries!
279 *) Support for single pass processing for S/MIME signing. This now
280 means that S/MIME signing can be done from a pipe, in addition
281 cleartext signing (multipart/signed type) is effectively streaming
282 and the signed data does not need to be all held in memory.
284 This is done with a new flag PKCS7_STREAM. When this flag is set
285 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
286 is done after the data is output (and digests calculated) in
290 *) Add full support for -rpath/-R, both in shared libraries and
291 applications, at least on the platforms where it's known how
295 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
296 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
297 will now compute a table of multiples of the generator that
298 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
299 faster (notably in the case of a single point multiplication,
301 [Nils Larsch, Bodo Moeller]
303 *) IPv6 support for certificate extensions. The various extensions
304 which use the IP:a.b.c.d can now take IPv6 addresses using the
305 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
309 *) Added an ENGINE that implements RSA by performing private key
310 exponentiations with the GMP library. The conversions to and from
311 GMP's mpz_t format aren't optimised nor are any montgomery forms
312 cached, and on x86 it appears OpenSSL's own performance has caught up.
313 However there are likely to be other architectures where GMP could
314 provide a boost. This ENGINE is not built in by default, but it can be
315 specified at Configure time and should be accompanied by the necessary
316 linker additions, eg;
317 ./config -DOPENSSL_USE_GMP -lgmp
320 *) "openssl engine" will not display ENGINE/DSO load failure errors when
321 testing availability of engines with "-t" - the old behaviour is
322 produced by increasing the feature's verbosity with "-tt".
325 *) ECDSA routines: under certain error conditions uninitialized BN objects
326 could be freed. Solution: make sure initialization is performed early
327 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
331 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
332 and DH_METHOD (eg. by ENGINE implementations) to override the normal
333 software implementations. For DSA and DH, parameter generation can
334 also be overriden by providing the appropriate method callbacks.
337 *) Change the "progress" mechanism used in key-generation and
338 primality testing to functions that take a new BN_GENCB pointer in
339 place of callback/argument pairs. The new API functions have "_ex"
340 postfixes and the older functions are reimplemented as wrappers for
341 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
342 declarations of the old functions to help (graceful) attempts to
343 migrate to the new functions. Also, the new key-generation API
344 functions operate on a caller-supplied key-structure and return
345 success/failure rather than returning a key or NULL - this is to
346 help make "keygen" another member function of RSA_METHOD etc.
348 Example for using the new callback interface:
350 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
354 BN_GENCB_set(&my_cb, my_callback, my_arg);
356 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
357 /* For the meaning of a, b in calls to my_callback(), see the
358 * documentation of the function that calls the callback.
359 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
360 * my_callback should return 1 if it wants BN_is_prime_ex()
361 * to continue, or 0 to stop.
366 *) Change the ZLIB compression method to be stateful, and make it
367 available to TLS with the number defined in
368 draft-ietf-tls-compression-04.txt.
371 *) Add the ASN.1 structures and functions for CertificatePair, which
372 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
374 CertificatePair ::= SEQUENCE {
375 forward [0] Certificate OPTIONAL,
376 reverse [1] Certificate OPTIONAL,
377 -- at least one of the pair shall be present -- }
379 Also implement the PEM functions to read and write certificate
380 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
382 This needed to be defined, mostly for the sake of the LDAP
383 attribute crossCertificatePair, but may prove useful elsewhere as
387 *) Make it possible to inhibit symlinking of shared libraries in
388 Makefile.shared, for Cygwin's sake.
391 *) Extend the BIGNUM API by creating new macros that behave like
394 void BN_set_sign(BIGNUM *a, int neg);
395 int BN_get_sign(const BIGNUM *a);
397 and avoid the need to access 'a->neg' directly in applications.
398 [Nils Larsch <nla@trustcenter.de>]
400 *) Implement fast modular reduction for pseudo-Mersenne primes
401 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
402 EC_GROUP_new_curve_GFp() will now automatically use this
404 [Nils Larsch <nla@trustcenter.de>]
406 *) Add new lock type (CRYPTO_LOCK_BN).
409 *) Change the ENGINE framework to automatically load engines
410 dynamically from specific directories unless they could be
411 found to already be built in or loaded. Move all the
412 current engines except for the cryptodev one to a new
414 The engines in engines/ are built as shared libraries if
415 the "shared" options was given to ./Configure or ./config.
416 Otherwise, they are inserted in libcrypto.a.
417 /usr/local/ssl/engines is the default directory for dynamic
418 engines, but that can be overriden at configure time through
419 the usual use of --prefix and/or --openssldir, and at run
420 time with the environment variable OPENSSL_ENGINES.
421 [Geoff Thorpe and Richard Levitte]
423 *) Add Makefile.shared, a helper makefile to build shared
424 libraries. Addapt Makefile.org.
427 *) Add version info to Win32 DLLs.
428 [Peter 'Luna' Runestig" <peter@runestig.com>]
430 *) Add new 'medium level' PKCS#12 API. Certificates and keys
431 can be added using this API to created arbitrary PKCS#12
432 files while avoiding the low level API.
434 New options to PKCS12_create(), key or cert can be NULL and
435 will then be omitted from the output file. The encryption
436 algorithm NIDs can be set to -1 for no encryption, the mac
437 iteration count can be set to 0 to omit the mac.
439 Enhance pkcs12 utility by making the -nokeys and -nocerts
440 options work when creating a PKCS#12 file. New option -nomac
441 to omit the mac, NONE can be set for an encryption algorithm.
442 New code is modified to use the enhanced PKCS12_create()
443 instead of the low level API.
446 *) Extend ASN1 encoder to support indefinite length constructed
447 encoding. This can output sequences tags and octet strings in
448 this form. Modify pk7_asn1.c to support indefinite length
449 encoding. This is experimental and needs additional code to
450 be useful, such as an ASN1 bio and some enhanced streaming
453 Extend template encode functionality so that tagging is passed
454 down to the template encoder.
457 *) Let 'openssl req' fail if an argument to '-newkey' is not
458 recognized instead of using RSA as a default.
461 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
462 As these are not official, they are not included in "ALL";
463 the "ECCdraft" ciphersuite group alias can be used to select them.
464 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
466 *) Add ECDH engine support.
467 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
469 *) Add ECDH in new directory crypto/ecdh/.
470 [Douglas Stebila (Sun Microsystems Laboratories)]
472 *) Let BN_rand_range() abort with an error after 100 iterations
473 without success (which indicates a broken PRNG).
476 *) Change BN_mod_sqrt() so that it verifies that the input value
477 is really the square of the return value. (Previously,
478 BN_mod_sqrt would show GIGO behaviour.)
481 *) Add named elliptic curves over binary fields from X9.62, SECG,
482 and WAP/WTLS; add OIDs that were still missing.
484 [Sheueling Chang Shantz and Douglas Stebila
485 (Sun Microsystems Laboratories)]
487 *) Extend the EC library for elliptic curves over binary fields
488 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
491 EC_GF2m_simple_method
495 EC_GROUP_new_curve_GF2m
496 EC_GROUP_set_curve_GF2m
497 EC_GROUP_get_curve_GF2m
498 EC_POINT_set_affine_coordinates_GF2m
499 EC_POINT_get_affine_coordinates_GF2m
500 EC_POINT_set_compressed_coordinates_GF2m
502 Point compression for binary fields is disabled by default for
503 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
506 As binary polynomials are represented as BIGNUMs, various members
507 of the EC_GROUP and EC_POINT data structures can be shared
508 between the implementations for prime fields and binary fields;
509 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
510 are essentially identical to their ..._GFp counterparts.
511 (For simplicity, the '..._GFp' prefix has been dropped from
512 various internal method names.)
514 An internal 'field_div' method (similar to 'field_mul' and
515 'field_sqr') has been added; this is used only for binary fields.
517 [Sheueling Chang Shantz and Douglas Stebila
518 (Sun Microsystems Laboratories)]
520 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
521 through methods ('mul', 'precompute_mult').
523 The generic implementations (now internally called 'ec_wNAF_mul'
524 and 'ec_wNAF_precomputed_mult') remain the default if these
525 methods are undefined.
527 [Sheueling Chang Shantz and Douglas Stebila
528 (Sun Microsystems Laboratories)]
530 *) New function EC_GROUP_get_degree, which is defined through
531 EC_METHOD. For curves over prime fields, this returns the bit
532 length of the modulus.
534 [Sheueling Chang Shantz and Douglas Stebila
535 (Sun Microsystems Laboratories)]
537 *) New functions EC_GROUP_dup, EC_POINT_dup.
538 (These simply call ..._new and ..._copy).
540 [Sheueling Chang Shantz and Douglas Stebila
541 (Sun Microsystems Laboratories)]
543 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
544 Polynomials are represented as BIGNUMs (where the sign bit is not
545 used) in the following functions [macros]:
548 BN_GF2m_sub [= BN_GF2m_add]
549 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
550 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
551 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
553 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
554 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
555 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
556 BN_GF2m_cmp [= BN_ucmp]
558 (Note that only the 'mod' functions are actually for fields GF(2^m).
559 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
561 For some functions, an the irreducible polynomial defining a
562 field can be given as an 'unsigned int[]' with strictly
563 decreasing elements giving the indices of those bits that are set;
564 i.e., p[] represents the polynomial
565 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
567 p[0] > p[1] > ... > p[k] = 0.
568 This applies to the following functions:
573 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
574 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
577 BN_GF2m_mod_solve_quad_arr
581 Conversion can be performed by the following functions:
586 bntest.c has additional tests for binary polynomial arithmetic.
588 Two implementations for BN_GF2m_mod_div() are available.
589 The default algorithm simply uses BN_GF2m_mod_inv() and
590 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
591 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
592 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
594 [Sheueling Chang Shantz and Douglas Stebila
595 (Sun Microsystems Laboratories)]
597 *) Add new error code 'ERR_R_DISABLED' that can be used when some
598 functionality is disabled at compile-time.
599 [Douglas Stebila <douglas.stebila@sun.com>]
601 *) Change default behaviour of 'openssl asn1parse' so that more
602 information is visible when viewing, e.g., a certificate:
604 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
605 mode the content of non-printable OCTET STRINGs is output in a
606 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
607 avoid the appearance of a printable string.
608 [Nils Larsch <nla@trustcenter.de>]
610 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
612 EC_GROUP_set_asn1_flag()
613 EC_GROUP_get_asn1_flag()
614 EC_GROUP_set_point_conversion_form()
615 EC_GROUP_get_point_conversion_form()
616 These control ASN1 encoding details:
617 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
618 has been set to OPENSSL_EC_NAMED_CURVE.
619 - Points are encoded in uncompressed form by default; options for
620 asn1_for are as for point2oct, namely
621 POINT_CONVERSION_COMPRESSED
622 POINT_CONVERSION_UNCOMPRESSED
623 POINT_CONVERSION_HYBRID
625 Also add 'seed' and 'seed_len' members to EC_GROUP with access
629 EC_GROUP_get_seed_len()
630 This is used only for ASN1 purposes (so far).
631 [Nils Larsch <nla@trustcenter.de>]
633 *) Add 'field_type' member to EC_METHOD, which holds the NID
634 of the appropriate field type OID. The new function
635 EC_METHOD_get_field_type() returns this value.
636 [Nils Larsch <nla@trustcenter.de>]
643 providing useful interfaces to EC_POINT_point2oct() and
644 EC_POINT_oct2point().
645 [Nils Larsch <nla@trustcenter.de>]
647 *) Change internals of the EC library so that the functions
648 EC_GROUP_set_generator()
649 EC_GROUP_get_generator()
651 EC_GROUP_get_cofactor()
652 are implemented directly in crypto/ec/ec_lib.c and not dispatched
653 to methods, which would lead to unnecessary code duplication when
654 adding different types of curves.
655 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
657 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
658 arithmetic, and such that modified wNAFs are generated
659 (which avoid length expansion in many cases).
662 *) Add a function EC_GROUP_check_discriminant() (defined via
663 EC_METHOD) that verifies that the curve discriminant is non-zero.
665 Add a function EC_GROUP_check() that makes some sanity tests
666 on a EC_GROUP, its generator and order. This includes
667 EC_GROUP_check_discriminant().
668 [Nils Larsch <nla@trustcenter.de>]
670 *) Add ECDSA in new directory crypto/ecdsa/.
672 Add applications 'openssl ecparam' and 'openssl ecdsa'
673 (these are based on 'openssl dsaparam' and 'openssl dsa').
675 ECDSA support is also included in various other files across the
676 library. Most notably,
677 - 'openssl req' now has a '-newkey ecdsa:file' option;
678 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
679 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
680 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
681 them suitable for ECDSA where domain parameters must be
682 extracted before the specific public key;
683 - ECDSA engine support has been added.
684 [Nils Larsch <nla@trustcenter.de>]
686 *) Include some named elliptic curves, and add OIDs from X9.62,
687 SECG, and WAP/WTLS. Each curve can be obtained from the new
689 EC_GROUP_new_by_nid(),
690 and the list of available named curves can be obtained with
691 EC_get_builtin_curves().
692 Also add a 'curve_name' member to EC_GROUP objects, which can be
696 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
698 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
699 was actually never needed) and in BN_mul(). The removal in BN_mul()
700 required a small change in bn_mul_part_recursive() and the addition
701 of the functions bn_cmp_part_words(), bn_sub_part_words() and
702 bn_add_part_words(), which do the same thing as bn_cmp_words(),
703 bn_sub_words() and bn_add_words() except they take arrays with
707 Changes between 0.9.7d and 0.9.7e [XX xxx XXXX]
709 *) Various fixes to s3_pkt.c so alerts are sent properly.
710 [David Holmes <d.holmes@f5.com>]
712 *) Reduce the chances of duplicate issuer name and serial numbers (in
713 violation of RFC3280) using the OpenSSL certificate creation utilities.
714 This is done by creating a random 64 bit value for the initial serial
715 number when a serial number file is created or when a self signed
716 certificate is created using 'openssl req -x509'. The initial serial
717 number file is created using 'openssl x509 -next_serial' in CA.pl
718 rather than being initialized to 1.
721 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
723 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
724 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
725 [Joe Orton, Steve Henson]
727 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
729 [Joe Orton, Steve Henson]
731 *) Make it possible to have multiple active certificates with the same
732 subject in the CA index file. This is done only if the keyword
733 'unique_subject' is set to 'no' in the main CA section (default
734 if 'CA_default') of the configuration file. The value is saved
735 with the database itself in a separate index attribute file,
736 named like the index file with '.attr' appended to the name.
739 *) X509 verify fixes. Disable broken certificate workarounds when
740 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
741 keyUsage extension present. Don't accept CRLs with unhandled critical
742 extensions: since verify currently doesn't process CRL extensions this
743 rejects a CRL with *any* critical extensions. Add new verify error codes
747 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
748 A clarification of RFC2560 will require the use of OCTET STRINGs and
749 some implementations cannot handle the current raw format. Since OpenSSL
750 copies and compares OCSP nonces as opaque blobs without any attempt at
751 parsing them this should not create any compatibility issues.
754 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
755 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
756 this HMAC (and other) operations are several times slower than OpenSSL
760 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
761 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
763 *) Use the correct content when signing type "other".
766 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
768 *) Fix various bugs revealed by running the NISCC test suite:
770 Stop out of bounds reads in the ASN1 code when presented with
771 invalid tags (CAN-2003-0543 and CAN-2003-0544).
773 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
775 If verify callback ignores invalid public key errors don't try to check
776 certificate signature with the NULL public key.
780 *) New -ignore_err option in ocsp application to stop the server
781 exiting on the first error in a request.
784 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
785 if the server requested one: as stated in TLS 1.0 and SSL 3.0
789 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
790 extra data after the compression methods not only for TLS 1.0
791 but also for SSL 3.0 (as required by the specification).
792 [Bodo Moeller; problem pointed out by Matthias Loepfe]
794 *) Change X509_certificate_type() to mark the key as exported/exportable
795 when it's 512 *bits* long, not 512 bytes.
798 *) Change AES_cbc_encrypt() so it outputs exact multiple of
799 blocks during encryption.
802 *) Various fixes to base64 BIO and non blocking I/O. On write
803 flushes were not handled properly if the BIO retried. On read
804 data was not being buffered properly and had various logic bugs.
805 This also affects blocking I/O when the data being decoded is a
809 *) Various S/MIME bugfixes and compatibility changes:
810 output correct application/pkcs7 MIME type if
811 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
812 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
813 of files as .eml work). Correctly handle very long lines in MIME
817 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
819 *) Countermeasure against the Klima-Pokorny-Rosa extension of
820 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
821 a protocol version number mismatch like a decryption error
822 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
825 *) Turn on RSA blinding by default in the default implementation
826 to avoid a timing attack. Applications that don't want it can call
827 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
828 They would be ill-advised to do so in most cases.
829 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
831 *) Change RSA blinding code so that it works when the PRNG is not
832 seeded (in this case, the secret RSA exponent is abused as
833 an unpredictable seed -- if it is not unpredictable, there
834 is no point in blinding anyway). Make RSA blinding thread-safe
835 by remembering the creator's thread ID in rsa->blinding and
836 having all other threads use local one-time blinding factors
837 (this requires more computation than sharing rsa->blinding, but
838 avoids excessive locking; and if an RSA object is not shared
839 between threads, blinding will still be very fast).
842 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
843 ENGINE as defaults for all supported algorithms irrespective of
844 the 'flags' parameter. 'flags' is now honoured, so applications
845 should make sure they are passing it correctly.
848 *) Target "mingw" now allows native Windows code to be generated in
849 the Cygwin environment as well as with the MinGW compiler.
852 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
854 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
855 via timing by performing a MAC computation even if incorrrect
856 block cipher padding has been found. This is a countermeasure
857 against active attacks where the attacker has to distinguish
858 between bad padding and a MAC verification error. (CAN-2003-0078)
860 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
861 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
862 Martin Vuagnoux (EPFL, Ilion)]
864 *) Make the no-err option work as intended. The intention with no-err
865 is not to have the whole error stack handling routines removed from
866 libcrypto, it's only intended to remove all the function name and
867 reason texts, thereby removing some of the footprint that may not
868 be interesting if those errors aren't displayed anyway.
870 NOTE: it's still possible for any application or module to have it's
871 own set of error texts inserted. The routines are there, just not
872 used by default when no-err is given.
875 *) Add support for FreeBSD on IA64.
876 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
878 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
879 Kerberos function mit_des_cbc_cksum(). Before this change,
880 the value returned by DES_cbc_cksum() was like the one from
881 mit_des_cbc_cksum(), except the bytes were swapped.
882 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
884 *) Allow an application to disable the automatic SSL chain building.
885 Before this a rather primitive chain build was always performed in
886 ssl3_output_cert_chain(): an application had no way to send the
887 correct chain if the automatic operation produced an incorrect result.
889 Now the chain builder is disabled if either:
891 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
893 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
895 The reasoning behind this is that an application would not want the
896 auto chain building to take place if extra chain certificates are
897 present and it might also want a means of sending no additional
898 certificates (for example the chain has two certificates and the
902 *) Add the possibility to build without the ENGINE framework.
903 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
905 *) Under Win32 gmtime() can return NULL: check return value in
906 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
909 *) DSA routines: under certain error conditions uninitialized BN objects
910 could be freed. Solution: make sure initialization is performed early
911 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
912 Nils Larsch <nla@trustcenter.de> via PR#459)
915 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
916 checked on reconnect on the client side, therefore session resumption
917 could still fail with a "ssl session id is different" error. This
918 behaviour is masked when SSL_OP_ALL is used due to
919 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
920 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
924 *) IA-32 assembler support enhancements: unified ELF targets, support
925 for SCO/Caldera platforms, fix for Cygwin shared build.
928 *) Add support for FreeBSD on sparc64. As a consequence, support for
929 FreeBSD on non-x86 processors is separate from x86 processors on
930 the config script, much like the NetBSD support.
931 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
933 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
935 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
938 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
939 code (06) was taken as the first octet of the session ID and the last
940 octet was ignored consequently. As a result SSLv2 client side session
941 caching could not have worked due to the session ID mismatch between
943 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
947 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
948 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
952 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
953 seems that in spite of existing for more than a year, many application
954 author have done nothing to provide the necessary callbacks, which
955 means that this particular engine will not work properly anywhere.
956 This is a very unfortunate situation which forces us, in the name
957 of usability, to give the hw_ncipher.c a static lock, which is part
959 NOTE: This is for the 0.9.7 series ONLY. This hack will never
960 appear in 0.9.8 or later. We EXPECT application authors to have
961 dealt properly with this when 0.9.8 is released (unless we actually
962 make such changes in the libcrypto locking code that changes will
963 have to be made anyway).
966 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
967 octets have been read, EOF or an error occurs. Without this change
968 some truncated ASN1 structures will not produce an error.
971 *) Disable Heimdal support, since it hasn't been fully implemented.
972 Still give the possibility to force the use of Heimdal, but with
973 warnings and a request that patches get sent to openssl-dev.
976 *) Add the VC-CE target, introduce the WINCE sysname, and add
977 INSTALL.WCE and appropriate conditionals to make it build.
978 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
980 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
981 cygssl-x.y.z.dll, where x, y and z are the major, minor and
982 edit numbers of the version.
983 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
985 *) Introduce safe string copy and catenation functions
986 (BUF_strlcpy() and BUF_strlcat()).
987 [Ben Laurie (CHATS) and Richard Levitte]
989 *) Avoid using fixed-size buffers for one-line DNs.
992 *) Add BUF_MEM_grow_clean() to avoid information leakage when
993 resizing buffers containing secrets, and use where appropriate.
996 *) Avoid using fixed size buffers for configuration file location.
999 *) Avoid filename truncation for various CA files.
1000 [Ben Laurie (CHATS)]
1002 *) Use sizeof in preference to magic numbers.
1003 [Ben Laurie (CHATS)]
1005 *) Avoid filename truncation in cert requests.
1006 [Ben Laurie (CHATS)]
1008 *) Add assertions to check for (supposedly impossible) buffer
1010 [Ben Laurie (CHATS)]
1012 *) Don't cache truncated DNS entries in the local cache (this could
1013 potentially lead to a spoofing attack).
1014 [Ben Laurie (CHATS)]
1016 *) Fix various buffers to be large enough for hex/decimal
1017 representations in a platform independent manner.
1018 [Ben Laurie (CHATS)]
1020 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1021 resizing buffers containing secrets, and use where appropriate.
1022 [Ben Laurie (CHATS)]
1024 *) Add BIO_indent() to avoid much slightly worrying code to do
1026 [Ben Laurie (CHATS)]
1028 *) Convert sprintf()/BIO_puts() to BIO_printf().
1029 [Ben Laurie (CHATS)]
1031 *) buffer_gets() could terminate with the buffer only half
1033 [Ben Laurie (CHATS)]
1035 *) Add assertions to prevent user-supplied crypto functions from
1036 overflowing internal buffers by having large block sizes, etc.
1037 [Ben Laurie (CHATS)]
1039 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1041 [Ben Laurie (CHATS)]
1043 *) Eliminate unused copy of key in RC4.
1044 [Ben Laurie (CHATS)]
1046 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1047 [Ben Laurie (CHATS)]
1049 *) Fix off-by-one error in EGD path.
1050 [Ben Laurie (CHATS)]
1052 *) If RANDFILE path is too long, ignore instead of truncating.
1053 [Ben Laurie (CHATS)]
1055 *) Eliminate unused and incorrectly sized X.509 structure
1057 [Ben Laurie (CHATS)]
1059 *) Eliminate unused and dangerous function knumber().
1060 [Ben Laurie (CHATS)]
1062 *) Eliminate unused and dangerous structure, KSSL_ERR.
1063 [Ben Laurie (CHATS)]
1065 *) Protect against overlong session ID context length in an encoded
1066 session object. Since these are local, this does not appear to be
1068 [Ben Laurie (CHATS)]
1070 *) Change from security patch (see 0.9.6e below) that did not affect
1071 the 0.9.6 release series:
1073 Remote buffer overflow in SSL3 protocol - an attacker could
1074 supply an oversized master key in Kerberos-enabled versions.
1076 [Ben Laurie (CHATS)]
1078 *) Change the SSL kerb5 codes to match RFC 2712.
1081 *) Make -nameopt work fully for req and add -reqopt switch.
1082 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1084 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1085 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1087 *) Make sure tests can be performed even if the corresponding algorithms
1088 have been removed entirely. This was also the last step to make
1089 OpenSSL compilable with DJGPP under all reasonable conditions.
1090 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1092 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1093 to allow version independent disabling of normally unselected ciphers,
1094 which may be activated as a side-effect of selecting a single cipher.
1096 (E.g., cipher list string "RSA" enables ciphersuites that are left
1097 out of "ALL" because they do not provide symmetric encryption.
1098 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1099 [Lutz Jaenicke, Bodo Moeller]
1101 *) Add appropriate support for separate platform-dependent build
1102 directories. The recommended way to make a platform-dependent
1103 build directory is the following (tested on Linux), maybe with
1106 # Place yourself outside of the OpenSSL source tree. In
1107 # this example, the environment variable OPENSSL_SOURCE
1108 # is assumed to contain the absolute OpenSSL source directory.
1109 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1110 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1111 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1112 mkdir -p `dirname $F`
1113 ln -s $OPENSSL_SOURCE/$F $F
1116 To be absolutely sure not to disturb the source tree, a "make clean"
1117 is a good thing. If it isn't successfull, don't worry about it,
1118 it probably means the source directory is very clean.
1121 *) Make sure any ENGINE control commands make local copies of string
1122 pointers passed to them whenever necessary. Otherwise it is possible
1123 the caller may have overwritten (or deallocated) the original string
1124 data when a later ENGINE operation tries to use the stored values.
1125 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1127 *) Improve diagnostics in file reading and command-line digests.
1128 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1130 *) Add AES modes CFB and OFB to the object database. Correct an
1131 error in AES-CFB decryption.
1134 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1135 allows existing EVP_CIPHER_CTX structures to be reused after
1136 calling EVP_*Final(). This behaviour is used by encryption
1137 BIOs and some applications. This has the side effect that
1138 applications must explicitly clean up cipher contexts with
1139 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1142 *) Check the values of dna and dnb in bn_mul_recursive before calling
1143 bn_mul_comba (a non zero value means the a or b arrays do not contain
1144 n2 elements) and fallback to bn_mul_normal if either is not zero.
1147 *) Fix escaping of non-ASCII characters when using the -subj option
1148 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1151 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1152 form for "surname", serialNumber has no short form.
1153 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1154 therefore remove "mail" short name for "internet 7".
1155 The OID for unique identifiers in X509 certificates is
1156 x500UniqueIdentifier, not uniqueIdentifier.
1157 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1160 *) Add an "init" command to the ENGINE config module and auto initialize
1161 ENGINEs. Without any "init" command the ENGINE will be initialized
1162 after all ctrl commands have been executed on it. If init=1 the
1163 ENGINE is initailized at that point (ctrls before that point are run
1164 on the uninitialized ENGINE and after on the initialized one). If
1165 init=0 then the ENGINE will not be iniatialized at all.
1168 *) Fix the 'app_verify_callback' interface so that the user-defined
1169 argument is actually passed to the callback: In the
1170 SSL_CTX_set_cert_verify_callback() prototype, the callback
1171 declaration has been changed from
1174 int (*cb)(X509_STORE_CTX *,void *);
1175 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1176 i=s->ctx->app_verify_callback(&ctx)
1177 has been changed into
1178 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1180 To update applications using SSL_CTX_set_cert_verify_callback(),
1181 a dummy argument can be added to their callback functions.
1182 [D. K. Smetters <smetters@parc.xerox.com>]
1184 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1185 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1187 *) Add and OPENSSL_LOAD_CONF define which will cause
1188 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1189 This allows older applications to transparently support certain
1190 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1191 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1192 load the config file and OPENSSL_add_all_algorithms_conf() which will
1193 always load it have also been added.
1196 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1197 Adjust NIDs and EVP layer.
1198 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1200 *) Config modules support in openssl utility.
1202 Most commands now load modules from the config file,
1203 though in a few (such as version) this isn't done
1204 because it couldn't be used for anything.
1206 In the case of ca and req the config file used is
1207 the same as the utility itself: that is the -config
1208 command line option can be used to specify an
1212 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1213 use "openssl_conf" if filename is NULL use default openssl config file.
1216 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1217 config section name. Add a new flag to tolerate a missing config file
1218 and move code to CONF_modules_load_file().
1221 *) Support for crypto accelerator cards from Accelerated Encryption
1222 Processing, www.aep.ie. (Use engine 'aep')
1223 The support was copied from 0.9.6c [engine] and adapted/corrected
1224 to work with the new engine framework.
1225 [AEP Inc. and Richard Levitte]
1227 *) Support for SureWare crypto accelerator cards from Baltimore
1228 Technologies. (Use engine 'sureware')
1229 The support was copied from 0.9.6c [engine] and adapted
1230 to work with the new engine framework.
1233 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1234 make the newer ENGINE framework commands for the CHIL engine work.
1235 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1237 *) Make it possible to produce shared libraries on ReliantUNIX.
1238 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1240 *) Add the configuration target debug-linux-ppro.
1241 Make 'openssl rsa' use the general key loading routines
1242 implemented in apps.c, and make those routines able to
1243 handle the key format FORMAT_NETSCAPE and the variant
1245 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1247 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1248 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1250 *) Add -keyform to rsautl, and document -engine.
1251 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1253 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1254 BIO_R_NO_SUCH_FILE error code rather than the generic
1255 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1258 *) Add new functions
1260 ERR_peek_last_error_line
1261 ERR_peek_last_error_line_data.
1262 These are similar to
1265 ERR_peek_error_line_data,
1266 but report on the latest error recorded rather than the first one
1267 still in the error queue.
1268 [Ben Laurie, Bodo Moeller]
1270 *) default_algorithms option in ENGINE config module. This allows things
1272 default_algorithms = ALL
1273 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1276 *) Prelminary ENGINE config module.
1279 *) New experimental application configuration code.
1282 *) Change the AES code to follow the same name structure as all other
1283 symmetric ciphers, and behave the same way. Move everything to
1284 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1285 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1287 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1288 [Ben Laurie and Theo de Raadt]
1290 *) Add option to output public keys in req command.
1291 [Massimiliano Pala madwolf@openca.org]
1293 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1294 (up to about 10% better than before for P-192 and P-224).
1297 *) New functions/macros
1299 SSL_CTX_set_msg_callback(ctx, cb)
1300 SSL_CTX_set_msg_callback_arg(ctx, arg)
1301 SSL_set_msg_callback(ssl, cb)
1302 SSL_set_msg_callback_arg(ssl, arg)
1304 to request calling a callback function
1306 void cb(int write_p, int version, int content_type,
1307 const void *buf, size_t len, SSL *ssl, void *arg)
1309 whenever a protocol message has been completely received
1310 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1311 protocol version according to which the SSL library interprets
1312 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1313 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1314 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1315 specification (change_cipher_spec(20), alert(21), handshake(22)).
1316 'buf' and 'len' point to the actual message, 'ssl' to the
1317 SSL object, and 'arg' is the application-defined value set by
1318 SSL[_CTX]_set_msg_callback_arg().
1320 'openssl s_client' and 'openssl s_server' have new '-msg' options
1321 to enable a callback that displays all protocol messages.
1324 *) Change the shared library support so shared libraries are built as
1325 soon as the corresponding static library is finished, and thereby get
1326 openssl and the test programs linked against the shared library.
1327 This still only happens when the keyword "shard" has been given to
1328 the configuration scripts.
1330 NOTE: shared library support is still an experimental thing, and
1331 backward binary compatibility is still not guaranteed.
1332 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1334 *) Add support for Subject Information Access extension.
1335 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1337 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1338 additional bytes when new memory had to be allocated, not just
1339 when reusing an existing buffer.
1342 *) New command line and configuration option 'utf8' for the req command.
1343 This allows field values to be specified as UTF8 strings.
1346 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1347 runs for the former and machine-readable output for the latter.
1350 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1351 of the e-mail address in the DN (i.e., it will go into a certificate
1352 extension only). The new configuration file option 'email_in_dn = no'
1353 has the same effect.
1354 [Massimiliano Pala madwolf@openca.org]
1356 *) Change all functions with names starting with des_ to be starting
1357 with DES_ instead. Add wrappers that are compatible with libdes,
1358 but are named _ossl_old_des_*. Finally, add macros that map the
1359 des_* symbols to the corresponding _ossl_old_des_* if libdes
1360 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1361 desired, the des_* symbols will be mapped to DES_*, with one
1364 Since we provide two compatibility mappings, the user needs to
1365 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1366 compatibility is desired. The default (i.e., when that macro
1367 isn't defined) is OpenSSL 0.9.6c compatibility.
1369 There are also macros that enable and disable the support of old
1370 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1371 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1372 are defined, the default will apply: to support the old des routines.
1374 In either case, one must include openssl/des.h to get the correct
1375 definitions. Do not try to just include openssl/des_old.h, that
1378 NOTE: This is a major break of an old API into a new one. Software
1379 authors are encouraged to switch to the DES_ style functions. Some
1380 time in the future, des_old.h and the libdes compatibility functions
1381 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1382 default), and then completely removed.
1385 *) Test for certificates which contain unsupported critical extensions.
1386 If such a certificate is found during a verify operation it is
1387 rejected by default: this behaviour can be overridden by either
1388 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1389 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1390 X509_supported_extension() has also been added which returns 1 if a
1391 particular extension is supported.
1394 *) Modify the behaviour of EVP cipher functions in similar way to digests
1395 to retain compatibility with existing code.
1398 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1399 compatibility with existing code. In particular the 'ctx' parameter does
1400 not have to be to be initialized before the call to EVP_DigestInit() and
1401 it is tidied up after a call to EVP_DigestFinal(). New function
1402 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1403 EVP_MD_CTX_copy() changed to not require the destination to be
1404 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1405 requires the destination to be valid.
1407 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1408 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1411 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1412 so that complete 'Handshake' protocol structures are kept in memory
1413 instead of overwriting 'msg_type' and 'length' with 'body' data.
1416 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1417 [Massimo Santin via Richard Levitte]
1419 *) Major restructuring to the underlying ENGINE code. This includes
1420 reduction of linker bloat, separation of pure "ENGINE" manipulation
1421 (initialisation, etc) from functionality dealing with implementations
1422 of specific crypto iterfaces. This change also introduces integrated
1423 support for symmetric ciphers and digest implementations - so ENGINEs
1424 can now accelerate these by providing EVP_CIPHER and EVP_MD
1425 implementations of their own. This is detailed in crypto/engine/README
1426 as it couldn't be adequately described here. However, there are a few
1427 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1428 were changed in the original introduction of ENGINE code have now
1429 reverted back - the hooking from this code to ENGINE is now a good
1430 deal more passive and at run-time, operations deal directly with
1431 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1432 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1433 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1434 they were not being used by the framework as there is no concept of a
1435 BIGNUM_METHOD and they could not be generalised to the new
1436 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1437 ENGINE_cpy() has been removed as it cannot be consistently defined in
1441 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1444 *) Change mkdef.pl to sort symbols that get the same entry number,
1445 and make sure the automatically generated functions ERR_load_*
1446 become part of libeay.num as well.
1449 *) New function SSL_renegotiate_pending(). This returns true once
1450 renegotiation has been requested (either SSL_renegotiate() call
1451 or HelloRequest/ClientHello receveived from the peer) and becomes
1452 false once a handshake has been completed.
1453 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1454 sends a HelloRequest, but does not ensure that a handshake takes
1455 place. SSL_renegotiate_pending() is useful for checking if the
1456 client has followed the request.)
1459 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1460 By default, clients may request session resumption even during
1461 renegotiation (if session ID contexts permit); with this option,
1462 session resumption is possible only in the first handshake.
1464 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1465 more bits available for options that should not be part of
1466 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1469 *) Add some demos for certificate and certificate request creation.
1472 *) Make maximum certificate chain size accepted from the peer application
1473 settable (SSL*_get/set_max_cert_list()), as proposed by
1474 "Douglas E. Engert" <deengert@anl.gov>.
1477 *) Add support for shared libraries for Unixware-7
1478 (Boyd Lynn Gerber <gerberb@zenez.com>).
1481 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1482 be done prior to destruction. Use this to unload error strings from
1483 ENGINEs that load their own error strings. NB: This adds two new API
1484 functions to "get" and "set" this destroy handler in an ENGINE.
1487 *) Alter all existing ENGINE implementations (except "openssl" and
1488 "openbsd") to dynamically instantiate their own error strings. This
1489 makes them more flexible to be built both as statically-linked ENGINEs
1490 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1491 Also, add stub code to each that makes building them as self-contained
1492 shared-libraries easier (see README.ENGINE).
1495 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1496 implementations into applications that are completely implemented in
1497 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1498 commands that can be used to configure what shared-library to load and
1499 to control aspects of the way it is handled. Also, made an update to
1500 the README.ENGINE file that brings its information up-to-date and
1501 provides some information and instructions on the "dynamic" ENGINE
1502 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1505 *) Make it possible to unload ranges of ERR strings with a new
1506 "ERR_unload_strings" function.
1509 *) Add a copy() function to EVP_MD.
1512 *) Make EVP_MD routines take a context pointer instead of just the
1513 md_data void pointer.
1516 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1517 that the digest can only process a single chunk of data
1518 (typically because it is provided by a piece of
1519 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1520 is only going to provide a single chunk of data, and hence the
1521 framework needn't accumulate the data for oneshot drivers.
1524 *) As with "ERR", make it possible to replace the underlying "ex_data"
1525 functions. This change also alters the storage and management of global
1526 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1527 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1528 index counters. The API functions that use this state have been changed
1529 to take a "class_index" rather than pointers to the class's local STACK
1530 and counter, and there is now an API function to dynamically create new
1531 classes. This centralisation allows us to (a) plug a lot of the
1532 thread-safety problems that existed, and (b) makes it possible to clean
1533 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1534 such data would previously have always leaked in application code and
1535 workarounds were in place to make the memory debugging turn a blind eye
1536 to it. Application code that doesn't use this new function will still
1537 leak as before, but their memory debugging output will announce it now
1538 rather than letting it slide.
1540 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1541 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1542 has a return value to indicate success or failure.
1545 *) Make it possible to replace the underlying "ERR" functions such that the
1546 global state (2 LHASH tables and 2 locks) is only used by the "default"
1547 implementation. This change also adds two functions to "get" and "set"
1548 the implementation prior to it being automatically set the first time
1549 any other ERR function takes place. Ie. an application can call "get",
1550 pass the return value to a module it has just loaded, and that module
1551 can call its own "set" function using that value. This means the
1552 module's "ERR" operations will use (and modify) the error state in the
1553 application and not in its own statically linked copy of OpenSSL code.
1556 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1557 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1558 the operation, and provides a more encapsulated way for external code
1559 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1560 to use these functions rather than manually incrementing the counts.
1562 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1565 *) Add EVP test program.
1568 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1571 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1572 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1573 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1574 These allow a CRL to be built without having to access X509_CRL fields
1575 directly. Modify 'ca' application to use new functions.
1578 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1579 bug workarounds. Rollback attack detection is a security feature.
1580 The problem will only arise on OpenSSL servers when TLSv1 is not
1581 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1582 Software authors not wanting to support TLSv1 will have special reasons
1583 for their choice and can explicitly enable this option.
1584 [Bodo Moeller, Lutz Jaenicke]
1586 *) Rationalise EVP so it can be extended: don't include a union of
1587 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1588 (similar to those existing for EVP_CIPHER_CTX).
1593 EVP_MD_CTX_init(&md); /* new function call */
1594 EVP_DigestInit(&md, EVP_sha1());
1595 EVP_DigestUpdate(&md, in, len);
1596 EVP_DigestFinal(&md, out, NULL);
1597 EVP_MD_CTX_cleanup(&md); /* new function call */
1601 *) Make DES key schedule conform to the usual scheme, as well as
1602 correcting its structure. This means that calls to DES functions
1603 now have to pass a pointer to a des_key_schedule instead of a
1604 plain des_key_schedule (which was actually always a pointer
1607 des_key_schedule ks;
1609 des_set_key_checked(..., &ks);
1610 des_ncbc_encrypt(..., &ks, ...);
1612 (Note that a later change renames 'des_...' into 'DES_...'.)
1615 *) Initial reduction of linker bloat: the use of some functions, such as
1616 PEM causes large amounts of unused functions to be linked in due to
1617 poor organisation. For example pem_all.c contains every PEM function
1618 which has a knock on effect of linking in large amounts of (unused)
1619 ASN1 code. Grouping together similar functions and splitting unrelated
1620 functions prevents this.
1623 *) Cleanup of EVP macros.
1626 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1627 correct _ecb suffix.
1630 *) Add initial OCSP responder support to ocsp application. The
1631 revocation information is handled using the text based index
1632 use by the ca application. The responder can either handle
1633 requests generated internally, supplied in files (for example
1634 via a CGI script) or using an internal minimal server.
1637 *) Add configuration choices to get zlib compression for TLS.
1640 *) Changes to Kerberos SSL for RFC 2712 compliance:
1641 1. Implemented real KerberosWrapper, instead of just using
1642 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1643 2. Implemented optional authenticator field of KerberosWrapper.
1645 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1646 and authenticator structs; see crypto/krb5/.
1648 Generalized Kerberos calls to support multiple Kerberos libraries.
1649 [Vern Staats <staatsvr@asc.hpc.mil>,
1650 Jeffrey Altman <jaltman@columbia.edu>
1651 via Richard Levitte]
1653 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1654 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1655 values for each of the key sizes rather than having just
1656 parameters (and 'speed' generating keys each time).
1659 *) Speed up EVP routines.
1662 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1663 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1664 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1665 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1667 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1668 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1669 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1672 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1674 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1677 *) Added the OS2-EMX target.
1678 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1680 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1681 to support NCONF routines in extension code. New function CONF_set_nconf()
1682 to allow functions which take an NCONF to also handle the old LHASH
1683 structure: this means that the old CONF compatible routines can be
1684 retained (in particular wrt extensions) without having to duplicate the
1685 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1688 *) Enhance the general user interface with mechanisms for inner control
1689 and with possibilities to have yes/no kind of prompts.
1692 *) Change all calls to low level digest routines in the library and
1693 applications to use EVP. Add missing calls to HMAC_cleanup() and
1694 don't assume HMAC_CTX can be copied using memcpy().
1695 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1697 *) Add the possibility to control engines through control names but with
1698 arbitrary arguments instead of just a string.
1699 Change the key loaders to take a UI_METHOD instead of a callback
1700 function pointer. NOTE: this breaks binary compatibility with earlier
1701 versions of OpenSSL [engine].
1702 Adapt the nCipher code for these new conditions and add a card insertion
1706 *) Enhance the general user interface with mechanisms to better support
1707 dialog box interfaces, application-defined prompts, the possibility
1708 to use defaults (for example default passwords from somewhere else)
1709 and interrupts/cancellations.
1712 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1713 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1716 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1717 tidy up some unnecessarily weird code in 'sk_new()').
1718 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1720 *) Change the key loading routines for ENGINEs to use the same kind
1721 callback (pem_password_cb) as all other routines that need this
1725 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1726 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1727 than this minimum value is recommended.
1730 *) New random seeder for OpenVMS, using the system process statistics
1731 that are easily reachable.
1734 *) Windows apparently can't transparently handle global
1735 variables defined in DLLs. Initialisations such as:
1737 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1739 wont compile. This is used by the any applications that need to
1740 declare their own ASN1 modules. This was fixed by adding the option
1741 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1742 needed for static libraries under Win32.
1745 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1746 setting of purpose and trust fields. New X509_STORE trust and
1747 purpose functions and tidy up setting in other SSL functions.
1750 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1751 structure. These are inherited by X509_STORE_CTX when it is
1752 initialised. This allows various defaults to be set in the
1753 X509_STORE structure (such as flags for CRL checking and custom
1754 purpose or trust settings) for functions which only use X509_STORE_CTX
1755 internally such as S/MIME.
1757 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1758 trust settings if they are not set in X509_STORE. This allows X509_STORE
1759 purposes and trust (in S/MIME for example) to override any set by default.
1761 Add command line options for CRL checking to smime, s_client and s_server
1765 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1766 are set then the CRL is looked up in the X509_STORE structure and
1767 its validity and signature checked, then if the certificate is found
1768 in the CRL the verify fails with a revoked error.
1770 Various new CRL related callbacks added to X509_STORE_CTX structure.
1772 Command line options added to 'verify' application to support this.
1774 This needs some additional work, such as being able to handle multiple
1775 CRLs with different times, extension based lookup (rather than just
1776 by subject name) and ultimately more complete V2 CRL extension
1780 *) Add a general user interface API (crypto/ui/). This is designed
1781 to replace things like des_read_password and friends (backward
1782 compatibility functions using this new API are provided).
1783 The purpose is to remove prompting functions from the DES code
1784 section as well as provide for prompting through dialog boxes in
1785 a window system and the like.
1788 *) Add "ex_data" support to ENGINE so implementations can add state at a
1789 per-structure level rather than having to store it globally.
1792 *) Make it possible for ENGINE structures to be copied when retrieved by
1793 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1794 This causes the "original" ENGINE structure to act like a template,
1795 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1796 operational state can be localised to each ENGINE structure, despite the
1797 fact they all share the same "methods". New ENGINE structures returned in
1798 this case have no functional references and the return value is the single
1799 structural reference. This matches the single structural reference returned
1800 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1804 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1805 needs to match any other type at all we need to manually clear the
1809 *) Changes to the "openssl engine" utility to include;
1810 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1811 about an ENGINE's available control commands.
1812 - executing control commands from command line arguments using the
1813 '-pre' and '-post' switches. '-post' is only used if '-t' is
1814 specified and the ENGINE is successfully initialised. The syntax for
1815 the individual commands are colon-separated, for example;
1816 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1819 *) New dynamic control command support for ENGINEs. ENGINEs can now
1820 declare their own commands (numbers), names (strings), descriptions,
1821 and input types for run-time discovery by calling applications. A
1822 subset of these commands are implicitly classed as "executable"
1823 depending on their input type, and only these can be invoked through
1824 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1825 can be based on user input, config files, etc). The distinction is
1826 that "executable" commands cannot return anything other than a boolean
1827 result and can only support numeric or string input, whereas some
1828 discoverable commands may only be for direct use through
1829 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1830 pointers, or other custom uses. The "executable" commands are to
1831 support parameterisations of ENGINE behaviour that can be
1832 unambiguously defined by ENGINEs and used consistently across any
1833 OpenSSL-based application. Commands have been added to all the
1834 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1835 control over shared-library paths without source code alterations.
1838 *) Changed all ENGINE implementations to dynamically allocate their
1839 ENGINEs rather than declaring them statically. Apart from this being
1840 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1841 this also allows the implementations to compile without using the
1842 internal engine_int.h header.
1845 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1846 'const' value. Any code that should be able to modify a RAND_METHOD
1847 should already have non-const pointers to it (ie. they should only
1848 modify their own ones).
1851 *) Made a variety of little tweaks to the ENGINE code.
1852 - "atalla" and "ubsec" string definitions were moved from header files
1853 to C code. "nuron" string definitions were placed in variables
1854 rather than hard-coded - allowing parameterisation of these values
1855 later on via ctrl() commands.
1856 - Removed unused "#if 0"'d code.
1857 - Fixed engine list iteration code so it uses ENGINE_free() to release
1858 structural references.
1859 - Constified the RAND_METHOD element of ENGINE structures.
1860 - Constified various get/set functions as appropriate and added
1861 missing functions (including a catch-all ENGINE_cpy that duplicates
1862 all ENGINE values onto a new ENGINE except reference counts/state).
1863 - Removed NULL parameter checks in get/set functions. Setting a method
1864 or function to NULL is a way of cancelling out a previously set
1865 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1866 and doesn't justify the extra error symbols and code.
1867 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1868 flags from engine_int.h to engine.h.
1869 - Changed prototypes for ENGINE handler functions (init(), finish(),
1870 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1873 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1874 to the algorithm using long division. The binary algorithm can be
1875 used only if the modulus is odd. On 32-bit systems, it is faster
1876 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1877 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1878 up to 450 bits. In 64-bit environments, the binary algorithm
1879 appears to be advantageous for much longer moduli; here we use it
1880 for moduli up to 2048 bits.
1883 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1884 could not support the combine flag in choice fields.
1887 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1888 extensions from a certificate request to the certificate.
1891 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1892 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1893 file: this allows the display of the certificate about to be
1894 signed to be customised, to allow certain fields to be included
1895 or excluded and extension details. The old system didn't display
1896 multicharacter strings properly, omitted fields not in the policy
1897 and couldn't display additional details such as extensions.
1900 *) Function EC_POINTs_mul for multiple scalar multiplication
1901 of an arbitrary number of elliptic curve points
1902 \sum scalars[i]*points[i],
1903 optionally including the generator defined for the EC_GROUP:
1904 scalar*generator + \sum scalars[i]*points[i].
1906 EC_POINT_mul is a simple wrapper function for the typical case
1907 that the point list has just one item (besides the optional
1911 *) First EC_METHODs for curves over GF(p):
1913 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1914 operations and provides various method functions that can also
1915 operate with faster implementations of modular arithmetic.
1917 EC_GFp_mont_method() reuses most functions that are part of
1918 EC_GFp_simple_method, but uses Montgomery arithmetic.
1920 [Bodo Moeller; point addition and point doubling
1921 implementation directly derived from source code provided by
1922 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1924 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1925 crypto/ec/ec_lib.c):
1927 Curves are EC_GROUP objects (with an optional group generator)
1928 based on EC_METHODs that are built into the library.
1930 Points are EC_POINT objects based on EC_GROUP objects.
1932 Most of the framework would be able to handle curves over arbitrary
1933 finite fields, but as there are no obvious types for fields other
1934 than GF(p), some functions are limited to that for now.
1937 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1938 that the file contains a complete HTTP response.
1941 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1942 change the def and num file printf format specifier from "%-40sXXX"
1943 to "%-39s XXX". The latter will always guarantee a space after the
1944 field while the former will cause them to run together if the field
1945 is 40 of more characters long.
1948 *) Constify the cipher and digest 'method' functions and structures
1949 and modify related functions to take constant EVP_MD and EVP_CIPHER
1953 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1954 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1957 *) Modify EVP_Digest*() routines so they now return values. Although the
1958 internal software routines can never fail additional hardware versions
1962 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1964 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1965 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1968 ERR_R_NESTED_ASN1_ERROR
1970 ERR_R_MISSING_ASN1_EOS
1971 were 4 .. 9, conflicting with
1972 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1974 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1975 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1977 Add new error code 'ERR_R_INTERNAL_ERROR'.
1980 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1984 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1985 sets the subject name for a new request or supersedes the
1986 subject name in a given request. Formats that can be parsed are
1987 'CN=Some Name, OU=myOU, C=IT'
1989 'CN=Some Name/OU=myOU/C=IT'.
1991 Add options '-batch' and '-verbose' to 'openssl req'.
1992 [Massimiliano Pala <madwolf@hackmasters.net>]
1994 *) Introduce the possibility to access global variables through
1995 functions on platform were that's the best way to handle exporting
1996 global variables in shared libraries. To enable this functionality,
1997 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1998 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1999 is normally done by Configure or something similar).
2001 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2002 in the source file (foo.c) like this:
2004 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2005 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2007 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2008 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2010 OPENSSL_DECLARE_GLOBAL(int,foo);
2011 #define foo OPENSSL_GLOBAL_REF(foo)
2012 OPENSSL_DECLARE_GLOBAL(double,bar);
2013 #define bar OPENSSL_GLOBAL_REF(bar)
2015 The #defines are very important, and therefore so is including the
2016 header file everywhere where the defined globals are used.
2018 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2019 of ASN.1 items, but that structure is a bit different.
2021 The largest change is in util/mkdef.pl which has been enhanced with
2022 better and easier to understand logic to choose which symbols should
2023 go into the Windows .def files as well as a number of fixes and code
2024 cleanup (among others, algorithm keywords are now sorted
2025 lexicographically to avoid constant rewrites).
2028 *) In BN_div() keep a copy of the sign of 'num' before writing the
2029 result to 'rm' because if rm==num the value will be overwritten
2030 and produce the wrong result if 'num' is negative: this caused
2031 problems with BN_mod() and BN_nnmod().
2034 *) Function OCSP_request_verify(). This checks the signature on an
2035 OCSP request and verifies the signer certificate. The signer
2036 certificate is just checked for a generic purpose and OCSP request
2040 *) Add OCSP_check_validity() function to check the validity of OCSP
2041 responses. OCSP responses are prepared in real time and may only
2042 be a few seconds old. Simply checking that the current time lies
2043 between thisUpdate and nextUpdate max reject otherwise valid responses
2044 caused by either OCSP responder or client clock inaccuracy. Instead
2045 we allow thisUpdate and nextUpdate to fall within a certain period of
2046 the current time. The age of the response can also optionally be
2047 checked. Two new options -validity_period and -status_age added to
2051 *) If signature or public key algorithm is unrecognized print out its
2052 OID rather that just UNKNOWN.
2055 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2056 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2057 ID to be generated from the issuer certificate alone which can then be
2058 passed to OCSP_id_issuer_cmp().
2061 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2062 ASN1 modules to export functions returning ASN1_ITEM pointers
2063 instead of the ASN1_ITEM structures themselves. This adds several
2064 new macros which allow the underlying ASN1 function/structure to
2065 be accessed transparently. As a result code should not use ASN1_ITEM
2066 references directly (such as &X509_it) but instead use the relevant
2067 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2068 use of the new ASN1 code on platforms where exporting structures
2069 is problematical (for example in shared libraries) but exporting
2070 functions returning pointers to structures is not.
2073 *) Add support for overriding the generation of SSL/TLS session IDs.
2074 These callbacks can be registered either in an SSL_CTX or per SSL.
2075 The purpose of this is to allow applications to control, if they wish,
2076 the arbitrary values chosen for use as session IDs, particularly as it
2077 can be useful for session caching in multiple-server environments. A
2078 command-line switch for testing this (and any client code that wishes
2079 to use such a feature) has been added to "s_server".
2080 [Geoff Thorpe, Lutz Jaenicke]
2082 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2083 of the form '#if defined(...) || defined(...) || ...' and
2084 '#if !defined(...) && !defined(...) && ...'. This also avoids
2085 the growing number of special cases it was previously handling.
2088 *) Make all configuration macros available for application by making
2089 sure they are available in opensslconf.h, by giving them names starting
2090 with "OPENSSL_" to avoid conflicts with other packages and by making
2091 sure e_os2.h will cover all platform-specific cases together with
2093 Additionally, it is now possible to define configuration/platform-
2094 specific names (called "system identities"). In the C code, these
2095 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2096 macro with the name beginning with "OPENSSL_SYS_", which is determined
2097 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2101 *) New option -set_serial to 'req' and 'x509' this allows the serial
2102 number to use to be specified on the command line. Previously self
2103 signed certificates were hard coded with serial number 0 and the
2104 CA options of 'x509' had to use a serial number in a file which was
2108 *) New options to 'ca' utility to support V2 CRL entry extensions.
2109 Currently CRL reason, invalidity date and hold instruction are
2110 supported. Add new CRL extensions to V3 code and some new objects.
2113 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2114 disable standard block padding (aka PKCS#5 padding) in the EVP
2115 API, which was previously mandatory. This means that the data is
2116 not padded in any way and so the total length much be a multiple
2117 of the block size, otherwise an error occurs.
2120 *) Initial (incomplete) OCSP SSL support.
2123 *) New function OCSP_parse_url(). This splits up a URL into its host,
2124 port and path components: primarily to parse OCSP URLs. New -url
2125 option to ocsp utility.
2128 *) New nonce behavior. The return value of OCSP_check_nonce() now
2129 reflects the various checks performed. Applications can decide
2130 whether to tolerate certain situations such as an absent nonce
2131 in a response when one was present in a request: the ocsp application
2132 just prints out a warning. New function OCSP_add1_basic_nonce()
2133 this is to allow responders to include a nonce in a response even if
2134 the request is nonce-less.
2137 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2138 skipped when using openssl x509 multiple times on a single input file,
2139 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2142 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2143 set string type: to handle setting ASN1_TIME structures. Fix ca
2144 utility to correctly initialize revocation date of CRLs.
2147 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2148 the clients preferred ciphersuites and rather use its own preferences.
2149 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2150 Internet Explorer by ensuring unchanged hash method during stepup.
2151 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2154 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2155 to aes and add a new 'exist' option to print out symbols that don't
2159 *) Additional options to ocsp utility to allow flags to be set and
2160 additional certificates supplied.
2163 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2164 OCSP client a number of certificate to only verify the response
2168 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2169 handle the new API. Currently only ECB, CBC modes supported. Add new
2172 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2173 Encryption Standard (AES) Ciphersuites for Transport Layer
2174 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2175 not enabled by default and were not part of the "ALL" ciphersuite
2176 alias because they were not yet official; they could be
2177 explicitly requested by specifying the "AESdraft" ciphersuite
2178 group alias. In the final release of OpenSSL 0.9.7, the group
2179 alias is called "AES" and is part of "ALL".)
2180 [Ben Laurie, Steve Henson, Bodo Moeller]
2182 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2183 request to response.
2186 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2187 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2188 extract information from a certificate request. OCSP_response_create()
2189 creates a response and optionally adds a basic response structure.
2190 OCSP_basic_add1_status() adds a complete single response to a basic
2191 response and returns the OCSP_SINGLERESP structure just added (to allow
2192 extensions to be included for example). OCSP_basic_add1_cert() adds a
2193 certificate to a basic response and OCSP_basic_sign() signs a basic
2194 response with various flags. New helper functions ASN1_TIME_check()
2195 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2196 (converts ASN1_TIME to GeneralizedTime).
2199 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2200 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2201 structure from a certificate. X509_pubkey_digest() digests the public_key
2202 contents: this is used in various key identifiers.
2205 *) Make sk_sort() tolerate a NULL argument.
2206 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2208 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2209 passed by the function are trusted implicitly. If any of them signed the
2210 response then it is assumed to be valid and is not verified.
2213 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2214 to data. This was previously part of the PKCS7 ASN1 code. This
2215 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2216 [Steve Henson, reported by Kenneth R. Robinette
2217 <support@securenetterm.com>]
2219 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2220 routines: without these tracing memory leaks is very painful.
2221 Fix leaks in PKCS12 and PKCS7 routines.
2224 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2225 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2226 effectively meant GeneralizedTime would never be used. Now it
2227 is initialised to -1 but X509_time_adj() now has to check the value
2228 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2229 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2230 [Steve Henson, reported by Kenneth R. Robinette
2231 <support@securenetterm.com>]
2233 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2234 result in a zero length in the ASN1_INTEGER structure which was
2235 not consistent with the structure when d2i_ASN1_INTEGER() was used
2236 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2237 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2238 where it did not print out a minus for negative ASN1_INTEGER.
2241 *) Add summary printout to ocsp utility. The various functions which
2242 convert status values to strings have been renamed to:
2243 OCSP_response_status_str(), OCSP_cert_status_str() and
2244 OCSP_crl_reason_str() and are no longer static. New options
2245 to verify nonce values and to disable verification. OCSP response
2246 printout format cleaned up.
2249 *) Add additional OCSP certificate checks. These are those specified
2250 in RFC2560. This consists of two separate checks: the CA of the
2251 certificate being checked must either be the OCSP signer certificate
2252 or the issuer of the OCSP signer certificate. In the latter case the
2253 OCSP signer certificate must contain the OCSP signing extended key
2254 usage. This check is performed by attempting to match the OCSP
2255 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2256 in the OCSP_CERTID structures of the response.
2259 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2260 and related routines. This uses the standard OpenSSL certificate
2261 verify routines to perform initial checks (just CA validity) and
2262 to obtain the certificate chain. Then additional checks will be
2263 performed on the chain. Currently the root CA is checked to see
2264 if it is explicitly trusted for OCSP signing. This is used to set
2265 a root CA as a global signing root: that is any certificate that
2266 chains to that CA is an acceptable OCSP signing certificate.
2269 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2270 extensions from a separate configuration file.
2271 As when reading extensions from the main configuration file,
2272 the '-extensions ...' option may be used for specifying the
2274 [Massimiliano Pala <madwolf@comune.modena.it>]
2276 *) New OCSP utility. Allows OCSP requests to be generated or
2277 read. The request can be sent to a responder and the output
2278 parsed, outputed or printed in text form. Not complete yet:
2279 still needs to check the OCSP response validity.
2282 *) New subcommands for 'openssl ca':
2283 'openssl ca -status <serial>' prints the status of the cert with
2284 the given serial number (according to the index file).
2285 'openssl ca -updatedb' updates the expiry status of certificates
2287 [Massimiliano Pala <madwolf@comune.modena.it>]
2289 *) New '-newreq-nodes' command option to CA.pl. This is like
2290 '-newreq', but calls 'openssl req' with the '-nodes' option
2291 so that the resulting key is not encrypted.
2292 [Damien Miller <djm@mindrot.org>]
2294 *) New configuration for the GNU Hurd.
2295 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2297 *) Initial code to implement OCSP basic response verify. This
2298 is currently incomplete. Currently just finds the signer's
2299 certificate and verifies the signature on the response.
2302 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2303 value of OPENSSLDIR. This is available via the new '-d' option
2304 to 'openssl version', and is also included in 'openssl version -a'.
2307 *) Allowing defining memory allocation callbacks that will be given
2308 file name and line number information in additional arguments
2309 (a const char* and an int). The basic functionality remains, as
2310 well as the original possibility to just replace malloc(),
2311 realloc() and free() by functions that do not know about these
2312 additional arguments. To register and find out the current
2313 settings for extended allocation functions, the following
2314 functions are provided:
2316 CRYPTO_set_mem_ex_functions
2317 CRYPTO_set_locked_mem_ex_functions
2318 CRYPTO_get_mem_ex_functions
2319 CRYPTO_get_locked_mem_ex_functions
2321 These work the same way as CRYPTO_set_mem_functions and friends.
2322 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2323 extended allocation function is enabled.
2324 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2325 a conventional allocation function is enabled.
2326 [Richard Levitte, Bodo Moeller]
2328 *) Finish off removing the remaining LHASH function pointer casts.
2329 There should no longer be any prototype-casting required when using
2330 the LHASH abstraction, and any casts that remain are "bugs". See
2331 the callback types and macros at the head of lhash.h for details
2332 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2335 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2336 If /dev/[u]random devices are not available or do not return enough
2337 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2339 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2340 /etc/entropy will be queried once each in this sequence, quering stops
2341 when enough entropy was collected without querying more sockets.
2344 *) Change the Unix RAND_poll() variant to be able to poll several
2345 random devices, as specified by DEVRANDOM, until a sufficient amount
2346 of data has been collected. We spend at most 10 ms on each file
2347 (select timeout) and read in non-blocking mode. DEVRANDOM now
2348 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2349 (previously it was just the string "/dev/urandom"), so on typical
2350 platforms the 10 ms delay will never occur.
2351 Also separate out the Unix variant to its own file, rand_unix.c.
2352 For VMS, there's a currently-empty rand_vms.c.
2355 *) Move OCSP client related routines to ocsp_cl.c. These
2356 provide utility functions which an application needing
2357 to issue a request to an OCSP responder and analyse the
2358 response will typically need: as opposed to those which an
2359 OCSP responder itself would need which will be added later.
2361 OCSP_request_sign() signs an OCSP request with an API similar
2362 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2363 response. OCSP_response_get1_basic() extracts basic response
2364 from response. OCSP_resp_find_status(): finds and extracts status
2365 information from an OCSP_CERTID structure (which will be created
2366 when the request structure is built). These are built from lower
2367 level functions which work on OCSP_SINGLERESP structures but
2368 wont normally be used unless the application wishes to examine
2369 extensions in the OCSP response for example.
2371 Replace nonce routines with a pair of functions.
2372 OCSP_request_add1_nonce() adds a nonce value and optionally
2373 generates a random value. OCSP_check_nonce() checks the
2374 validity of the nonce in an OCSP response.
2377 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2378 This doesn't copy the supplied OCSP_CERTID and avoids the
2379 need to free up the newly created id. Change return type
2380 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2381 This can then be used to add extensions to the request.
2382 Deleted OCSP_request_new(), since most of its functionality
2383 is now in OCSP_REQUEST_new() (and the case insensitive name
2384 clash) apart from the ability to set the request name which
2385 will be added elsewhere.
2388 *) Update OCSP API. Remove obsolete extensions argument from
2389 various functions. Extensions are now handled using the new
2390 OCSP extension code. New simple OCSP HTTP function which
2391 can be used to send requests and parse the response.
2394 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2395 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2396 uses the special reorder version of SET OF to sort the attributes
2397 and reorder them to match the encoded order. This resolves a long
2398 standing problem: a verify on a PKCS7 structure just after signing
2399 it used to fail because the attribute order did not match the
2400 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2401 it uses the received order. This is necessary to tolerate some broken
2402 software that does not order SET OF. This is handled by encoding
2403 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2404 to produce the required SET OF.
2407 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2408 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2409 files to get correct declarations of the ASN.1 item variables.
2412 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2413 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2414 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2415 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2416 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2417 ASN1_ITEM and no wrapper functions.
2420 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2421 replace the old function pointer based I/O routines. Change most of
2422 the *_d2i_bio() and *_d2i_fp() functions to use these.
2425 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2426 lines, recognice more "algorithms" that can be deselected, and make
2427 it complain about algorithm deselection that isn't recognised.
2430 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2431 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2432 to use new functions. Add NO_ASN1_OLD which can be set to remove
2433 some old style ASN1 functions: this can be used to determine if old
2434 code will still work when these eventually go away.
2437 *) New extension functions for OCSP structures, these follow the
2438 same conventions as certificates and CRLs.
2441 *) New function X509V3_add1_i2d(). This automatically encodes and
2442 adds an extension. Its behaviour can be customised with various
2443 flags to append, replace or delete. Various wrappers added for
2444 certifcates and CRLs.
2447 *) Fix to avoid calling the underlying ASN1 print routine when
2448 an extension cannot be parsed. Correct a typo in the
2449 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2452 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2453 entries for variables.
2456 *) Add functionality to apps/openssl.c for detecting locking
2457 problems: As the program is single-threaded, all we have
2458 to do is register a locking callback using an array for
2459 storing which locks are currently held by the program.
2462 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2463 SSL_get_ex_data_X509_STORE_idx(), which is used in
2464 ssl_verify_cert_chain() and thus can be called at any time
2465 during TLS/SSL handshakes so that thread-safety is essential.
2466 Unfortunately, the ex_data design is not at all suited
2467 for multi-threaded use, so it probably should be abolished.
2470 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2471 [Broadcom, tweaked and integrated by Geoff Thorpe]
2473 *) Move common extension printing code to new function
2474 X509V3_print_extensions(). Reorganise OCSP print routines and
2475 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2478 *) New function X509_signature_print() to remove duplication in some
2482 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2483 set (this was treated exactly the same as SET OF previously). This
2484 is used to reorder the STACK representing the structure to match the
2485 encoding. This will be used to get round a problem where a PKCS7
2486 structure which was signed could not be verified because the STACK
2487 order did not reflect the encoded order.
2490 *) Reimplement the OCSP ASN1 module using the new code.
2493 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2494 for its ASN1 operations. The old style function pointers still exist
2495 for now but they will eventually go away.
2498 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2499 completely replaces the old ASN1 functionality with a table driven
2500 encoder and decoder which interprets an ASN1_ITEM structure describing
2501 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2502 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2503 has also been converted to the new form.
2506 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2507 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2508 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2509 for negative moduli.
2512 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2513 of not touching the result's sign bit.
2516 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2520 *) Changed the LHASH code to use prototypes for callbacks, and created
2521 macros to declare and implement thin (optionally static) functions
2522 that provide type-safety and avoid function pointer casting for the
2523 type-specific callbacks.
2526 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2528 [Veers Staats <staatsvr@asc.hpc.mil>,
2529 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2531 *) Reformat the FAQ so the different questions and answers can be divided
2532 in sections depending on the subject.
2535 *) Have the zlib compression code load ZLIB.DLL dynamically under
2539 *) New function BN_mod_sqrt for computing square roots modulo a prime
2540 (using the probabilistic Tonelli-Shanks algorithm unless
2541 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2542 be handled deterministically).
2543 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2545 *) Make BN_mod_inverse faster by explicitly handling small quotients
2546 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2547 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2550 *) New function BN_kronecker.
2553 *) Fix BN_gcd so that it works on negative inputs; the result is
2554 positive unless both parameters are zero.
2555 Previously something reasonably close to an infinite loop was
2556 possible because numbers could be growing instead of shrinking
2557 in the implementation of Euclid's algorithm.
2560 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2561 sign of the number in question.
2563 Fix BN_is_word(a,w) to work correctly for w == 0.
2565 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2566 because its test if the absolute value of 'a' equals 'w'.
2567 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2568 it exists mostly for use in the implementations of BN_is_zero(),
2569 BN_is_one(), and BN_is_word().
2572 *) New function BN_swap.
2575 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2576 the exponentiation functions are more likely to produce reasonable
2577 results on negative inputs.
2580 *) Change BN_mod_mul so that the result is always non-negative.
2581 Previously, it could be negative if one of the factors was negative;
2582 I don't think anyone really wanted that behaviour.
2585 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2586 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2587 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2588 and add new functions:
2597 BN_mod_lshift1_quick
2601 These functions always generate non-negative results.
2603 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2604 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2606 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2607 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2608 be reduced modulo m.
2609 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2612 The following entry accidentily appeared in the CHANGES file
2613 distributed with OpenSSL 0.9.7. The modifications described in
2614 it do *not* apply to OpenSSL 0.9.7.
2616 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2617 was actually never needed) and in BN_mul(). The removal in BN_mul()
2618 required a small change in bn_mul_part_recursive() and the addition
2619 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2620 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2621 bn_sub_words() and bn_add_words() except they take arrays with
2626 *) In 'openssl passwd', verify passwords read from the terminal
2627 unless the '-salt' option is used (which usually means that
2628 verification would just waste user's time since the resulting
2629 hash is going to be compared with some given password hash)
2630 or the new '-noverify' option is used.
2632 This is an incompatible change, but it does not affect
2633 non-interactive use of 'openssl passwd' (passwords on the command
2634 line, '-stdin' option, '-in ...' option) and thus should not
2638 *) Remove all references to RSAref, since there's no more need for it.
2641 *) Make DSO load along a path given through an environment variable
2642 (SHLIB_PATH) with shl_load().
2645 *) Constify the ENGINE code as a result of BIGNUM constification.
2646 Also constify the RSA code and most things related to it. In a
2647 few places, most notable in the depth of the ASN.1 code, ugly
2648 casts back to non-const were required (to be solved at a later
2652 *) Make it so the openssl application has all engines loaded by default.
2655 *) Constify the BIGNUM routines a little more.
2658 *) Add the following functions:
2660 ENGINE_load_cswift()
2662 ENGINE_load_atalla()
2664 ENGINE_load_builtin_engines()
2666 That way, an application can itself choose if external engines that
2667 are built-in in OpenSSL shall ever be used or not. The benefit is
2668 that applications won't have to be linked with libdl or other dso
2669 libraries unless it's really needed.
2671 Changed 'openssl engine' to load all engines on demand.
2672 Changed the engine header files to avoid the duplication of some
2673 declarations (they differed!).
2676 *) 'openssl engine' can now list capabilities.
2679 *) Better error reporting in 'openssl engine'.
2682 *) Never call load_dh_param(NULL) in s_server.
2685 *) Add engine application. It can currently list engines by name and
2686 identity, and test if they are actually available.
2689 *) Improve RPM specification file by forcing symbolic linking and making
2690 sure the installed documentation is also owned by root.root.
2691 [Damien Miller <djm@mindrot.org>]
2693 *) Give the OpenSSL applications more possibilities to make use of
2694 keys (public as well as private) handled by engines.
2697 *) Add OCSP code that comes from CertCo.
2700 *) Add VMS support for the Rijndael code.
2703 *) Added untested support for Nuron crypto accelerator.
2706 *) Add support for external cryptographic devices. This code was
2707 previously distributed separately as the "engine" branch.
2708 [Geoff Thorpe, Richard Levitte]
2710 *) Rework the filename-translation in the DSO code. It is now possible to
2711 have far greater control over how a "name" is turned into a filename
2712 depending on the operating environment and any oddities about the
2713 different shared library filenames on each system.
2716 *) Support threads on FreeBSD-elf in Configure.
2719 *) Fix for SHA1 assembly problem with MASM: it produces
2720 warnings about corrupt line number information when assembling
2721 with debugging information. This is caused by the overlapping
2723 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2726 NCONF_get_number() has no error checking at all. As a replacement,
2727 NCONF_get_number_e() is defined (_e for "error checking") and is
2728 promoted strongly. The old NCONF_get_number is kept around for
2729 binary backward compatibility.
2730 Make it possible for methods to load from something other than a BIO,
2731 by providing a function pointer that is given a name instead of a BIO.
2732 For example, this could be used to load configuration data from an
2736 *) Fix for non blocking accept BIOs. Added new I/O special reason
2737 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2738 with non blocking I/O was not possible because no retry code was
2739 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2743 *) Added the beginnings of Rijndael support.
2746 *) Fix for bug in DirectoryString mask setting. Add support for
2747 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2748 to allow certificate printing to more controllable, additional
2749 'certopt' option to 'x509' to allow new printing options to be
2753 *) Clean old EAY MD5 hack from e_os.h.
2756 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2758 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2759 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
2760 [Joe Orton, Steve Henson]
2762 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2764 *) Fix additional bug revealed by the NISCC test suite:
2766 Stop bug triggering large recursion when presented with
2767 certain ASN.1 tags (CAN-2003-0851)
2770 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2772 *) Fix various bugs revealed by running the NISCC test suite:
2774 Stop out of bounds reads in the ASN1 code when presented with
2775 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2777 If verify callback ignores invalid public key errors don't try to check
2778 certificate signature with the NULL public key.
2782 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2783 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2787 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2788 extra data after the compression methods not only for TLS 1.0
2789 but also for SSL 3.0 (as required by the specification).
2790 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2792 *) Change X509_certificate_type() to mark the key as exported/exportable
2793 when it's 512 *bits* long, not 512 bytes.
2796 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2798 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2799 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2800 a protocol version number mismatch like a decryption error
2801 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2804 *) Turn on RSA blinding by default in the default implementation
2805 to avoid a timing attack. Applications that don't want it can call
2806 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2807 They would be ill-advised to do so in most cases.
2808 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2810 *) Change RSA blinding code so that it works when the PRNG is not
2811 seeded (in this case, the secret RSA exponent is abused as
2812 an unpredictable seed -- if it is not unpredictable, there
2813 is no point in blinding anyway). Make RSA blinding thread-safe
2814 by remembering the creator's thread ID in rsa->blinding and
2815 having all other threads use local one-time blinding factors
2816 (this requires more computation than sharing rsa->blinding, but
2817 avoids excessive locking; and if an RSA object is not shared
2818 between threads, blinding will still be very fast).
2821 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2823 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2824 via timing by performing a MAC computation even if incorrrect
2825 block cipher padding has been found. This is a countermeasure
2826 against active attacks where the attacker has to distinguish
2827 between bad padding and a MAC verification error. (CAN-2003-0078)
2829 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2830 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2831 Martin Vuagnoux (EPFL, Ilion)]
2833 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2835 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2836 memory from it's contents. This is done with a counter that will
2837 place alternating values in each byte. This can be used to solve
2838 two issues: 1) the removal of calls to memset() by highly optimizing
2839 compilers, and 2) cleansing with other values than 0, since those can
2840 be read through on certain media, for example a swap space on disk.
2843 *) Bugfix: client side session caching did not work with external caching,
2844 because the session->cipher setting was not restored when reloading
2845 from the external cache. This problem was masked, when
2846 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2847 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2850 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2851 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2852 [Zeev Lieber <zeev-l@yahoo.com>]
2854 *) Undo an undocumented change introduced in 0.9.6e which caused
2855 repeated calls to OpenSSL_add_all_ciphers() and
2856 OpenSSL_add_all_digests() to be ignored, even after calling
2860 *) Change the default configuration reader to deal with last line not
2861 being properly terminated.
2864 *) Change X509_NAME_cmp() so it applies the special rules on handling
2865 DN values that are of type PrintableString, as well as RDNs of type
2866 emailAddress where the value has the type ia5String.
2867 [stefank@valicert.com via Richard Levitte]
2869 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2870 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2871 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2872 the bitwise-OR of the two for use by the majority of applications
2873 wanting this behaviour, and update the docs. The documented
2874 behaviour and actual behaviour were inconsistent and had been
2875 changing anyway, so this is more a bug-fix than a behavioural
2877 [Geoff Thorpe, diagnosed by Nadav Har'El]
2879 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2880 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2883 *) Fix initialization code race conditions in
2884 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2885 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2886 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2887 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2888 ssl2_get_cipher_by_char(),
2889 ssl3_get_cipher_by_char().
2890 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2892 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2893 the cached sessions are flushed, as the remove_cb() might use ex_data
2894 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2895 (see [openssl.org #212]).
2896 [Geoff Thorpe, Lutz Jaenicke]
2898 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2899 length, instead of the encoding length to d2i_ASN1_OBJECT.
2902 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2904 *) [In 0.9.6g-engine release:]
2905 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2906 [Lynn Gazis <lgazis@rainbow.com>]
2908 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2910 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2911 and get fix the header length calculation.
2912 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2913 Alon Kantor <alonk@checkpoint.com> (and others),
2916 *) Use proper error handling instead of 'assertions' in buffer
2917 overflow checks added in 0.9.6e. This prevents DoS (the
2918 assertions could call abort()).
2919 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2921 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2923 *) Add various sanity checks to asn1_get_length() to reject
2924 the ASN1 length bytes if they exceed sizeof(long), will appear
2925 negative or the content length exceeds the length of the
2927 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2929 *) Fix cipher selection routines: ciphers without encryption had no flags
2930 for the cipher strength set and where therefore not handled correctly
2931 by the selection routines (PR #130).
2934 *) Fix EVP_dsa_sha macro.
2938 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2939 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2940 that was added in OpenSSL 0.9.6d.
2942 As the countermeasure turned out to be incompatible with some
2943 broken SSL implementations, the new option is part of SSL_OP_ALL.
2944 SSL_OP_ALL is usually employed when compatibility with weird SSL
2945 implementations is desired (e.g. '-bugs' option to 's_client' and
2946 's_server'), so the new option is automatically set in many
2950 *) Changes in security patch:
2952 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2953 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2954 Air Force Materiel Command, USAF, under agreement number
2957 *) Add various sanity checks to asn1_get_length() to reject
2958 the ASN1 length bytes if they exceed sizeof(long), will appear
2959 negative or the content length exceeds the length of the
2960 supplied buffer. (CAN-2002-0659)
2961 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2963 *) Assertions for various potential buffer overflows, not known to
2965 [Ben Laurie (CHATS)]
2967 *) Various temporary buffers to hold ASCII versions of integers were
2968 too small for 64 bit platforms. (CAN-2002-0655)
2969 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2971 *) Remote buffer overflow in SSL3 protocol - an attacker could
2972 supply an oversized session ID to a client. (CAN-2002-0656)
2973 [Ben Laurie (CHATS)]
2975 *) Remote buffer overflow in SSL2 protocol - an attacker could
2976 supply an oversized client master key. (CAN-2002-0656)
2977 [Ben Laurie (CHATS)]
2979 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2981 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2982 encoded as NULL) with id-dsa-with-sha1.
2983 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2985 *) Check various X509_...() return values in apps/req.c.
2986 [Nils Larsch <nla@trustcenter.de>]
2988 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2989 an end-of-file condition would erronously be flagged, when the CRLF
2990 was just at the end of a processed block. The bug was discovered when
2991 processing data through a buffering memory BIO handing the data to a
2992 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2993 <ptsekov@syntrex.com> and Nedelcho Stanev.
2996 *) Implement a countermeasure against a vulnerability recently found
2997 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2998 before application data chunks to avoid the use of known IVs
2999 with data potentially chosen by the attacker.
3002 *) Fix length checks in ssl3_get_client_hello().
3005 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3006 to prevent ssl3_read_internal() from incorrectly assuming that
3007 ssl3_read_bytes() found application data while handshake
3008 processing was enabled when in fact s->s3->in_read_app_data was
3009 merely automatically cleared during the initial handshake.
3010 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3012 *) Fix object definitions for Private and Enterprise: they were not
3013 recognized in their shortname (=lowercase) representation. Extend
3014 obj_dat.pl to issue an error when using undefined keywords instead
3015 of silently ignoring the problem (Svenning Sorensen
3016 <sss@sss.dnsalias.net>).
3019 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3020 generators, i.e. generators other than 2 and 5. (Previously, the
3021 code did not properly initialise the 'add' and 'rem' values to
3022 BN_generate_prime().)
3024 In the new general case, we do not insist that 'generator' is
3025 actually a primitive root: This requirement is rather pointless;
3026 a generator of the order-q subgroup is just as good, if not
3030 *) Map new X509 verification errors to alerts. Discovered and submitted by
3031 Tom Wu <tom@arcot.com>.
3034 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3035 returning non-zero before the data has been completely received
3036 when using non-blocking I/O.
3037 [Bodo Moeller; problem pointed out by John Hughes]
3039 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3040 [Ben Laurie, Lutz Jaenicke]
3042 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3043 Yoram Zahavi <YoramZ@gilian.com>).
3046 *) Add information about CygWin 1.3 and on, and preserve proper
3047 configuration for the versions before that.
3048 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3050 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3051 check whether we deal with a copy of a session and do not delete from
3052 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3053 <izhar@checkpoint.com>.
3056 *) Do not store session data into the internal session cache, if it
3057 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3058 flag is set). Proposed by Aslam <aslam@funk.com>.
3061 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3065 *) [In 0.9.6d-engine release:]
3066 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3067 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3069 *) Add the configuration target linux-s390x.
3070 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3072 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3073 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3074 variable as an indication that a ClientHello message has been
3075 received. As the flag value will be lost between multiple
3076 invocations of ssl3_accept when using non-blocking I/O, the
3077 function may not be aware that a handshake has actually taken
3078 place, thus preventing a new session from being added to the
3081 To avoid this problem, we now set s->new_session to 2 instead of
3082 using a local variable.
3083 [Lutz Jaenicke, Bodo Moeller]
3085 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3086 if the SSL_R_LENGTH_MISMATCH error is detected.
3087 [Geoff Thorpe, Bodo Moeller]
3089 *) New 'shared_ldflag' column in Configure platform table.
3092 *) Fix EVP_CIPHER_mode macro.
3093 ["Dan S. Camper" <dan@bti.net>]
3095 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3096 type, we must throw them away by setting rr->length to 0.
3097 [D P Chang <dpc@qualys.com>]
3099 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3101 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3102 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3103 worked incorrectly for those cases where range = 10..._2 and
3104 3*range is two bits longer than range.)
3107 *) Only add signing time to PKCS7 structures if it is not already
3111 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3112 OBJ_ld_ce should be OBJ_id_ce.
3113 Also some ip-pda OIDs in crypto/objects/objects.txt were
3114 incorrect (cf. RFC 3039).
3115 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3117 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3118 returns early because it has nothing to do.
3119 [Andy Schneider <andy.schneider@bjss.co.uk>]
3121 *) [In 0.9.6c-engine release:]
3122 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3123 [Andy Schneider <andy.schneider@bjss.co.uk>]
3125 *) [In 0.9.6c-engine release:]
3126 Add support for Cryptographic Appliance's keyserver technology.
3127 (Use engine 'keyclient')
3128 [Cryptographic Appliances and Geoff Thorpe]
3130 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3131 is called via tools/c89.sh because arguments have to be
3132 rearranged (all '-L' options must appear before the first object
3134 [Richard Shapiro <rshapiro@abinitio.com>]
3136 *) [In 0.9.6c-engine release:]
3137 Add support for Broadcom crypto accelerator cards, backported
3139 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3141 *) [In 0.9.6c-engine release:]
3142 Add support for SureWare crypto accelerator cards from
3143 Baltimore Technologies. (Use engine 'sureware')
3144 [Baltimore Technologies and Mark Cox]
3146 *) [In 0.9.6c-engine release:]
3147 Add support for crypto accelerator cards from Accelerated
3148 Encryption Processing, www.aep.ie. (Use engine 'aep')
3149 [AEP Inc. and Mark Cox]
3151 *) Add a configuration entry for gcc on UnixWare.
3152 [Gary Benson <gbenson@redhat.com>]
3154 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3155 messages are stored in a single piece (fixed-length part and
3156 variable-length part combined) and fix various bugs found on the way.
3159 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3160 instead. BIO_gethostbyname() does not know what timeouts are
3161 appropriate, so entries would stay in cache even when they have
3163 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3165 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3166 faced with a pathologically small ClientHello fragment that does
3167 not contain client_version: Instead of aborting with an error,
3168 simply choose the highest available protocol version (i.e.,
3169 TLS 1.0 unless it is disabled). In practice, ClientHello
3170 messages are never sent like this, but this change gives us
3171 strictly correct behaviour at least for TLS.
3174 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3175 never resets s->method to s->ctx->method when called from within
3176 one of the SSL handshake functions.
3177 [Bodo Moeller; problem pointed out by Niko Baric]
3179 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3180 (sent using the client's version number) if client_version is
3181 smaller than the protocol version in use. Also change
3182 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3183 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3184 the client will at least see that alert.
3187 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3191 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3192 client receives HelloRequest while in a handshake.
3193 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3195 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3196 should end in 'break', not 'goto end' which circuments various
3197 cleanups done in state SSL_ST_OK. But session related stuff
3198 must be disabled for SSL_ST_OK in the case that we just sent a
3201 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3202 before just sending a HelloRequest.
3203 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3205 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3206 reveal whether illegal block cipher padding was found or a MAC
3207 verification error occured. (Neither SSLerr() codes nor alerts
3208 are directly visible to potential attackers, but the information
3209 may leak via logfiles.)
3211 Similar changes are not required for the SSL 2.0 implementation
3212 because the number of padding bytes is sent in clear for SSL 2.0,
3213 and the extra bytes are just ignored. However ssl/s2_pkt.c
3214 failed to verify that the purported number of padding bytes is in
3218 *) Add OpenUNIX-8 support including shared libraries
3219 (Boyd Lynn Gerber <gerberb@zenez.com>).
3222 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3223 'wristwatch attack' using huge encoding parameters (cf.
3224 James H. Manger's CRYPTO 2001 paper). Note that the
3225 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3226 encoding parameters and hence was not vulnerable.
3229 *) BN_sqr() bug fix.
3230 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3232 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3233 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3234 followed by modular reduction.
3235 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3237 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3238 equivalent based on BN_pseudo_rand() instead of BN_rand().
3241 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3242 This function was broken, as the check for a new client hello message
3243 to handle SGC did not allow these large messages.
3244 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3247 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3250 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3251 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3254 *) Rework the configuration and shared library support for Tru64 Unix.
3255 The configuration part makes use of modern compiler features and
3256 still retains old compiler behavior for those that run older versions
3257 of the OS. The shared library support part includes a variant that
3258 uses the RPATH feature, and is available through the special
3259 configuration target "alpha-cc-rpath", which will never be selected
3261 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3263 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3264 with the same message size as in ssl3_get_certificate_request().
3265 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3266 messages might inadvertently be reject as too long.
3267 [Petr Lampa <lampa@fee.vutbr.cz>]
3269 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3272 *) Modified SSL library such that the verify_callback that has been set
3273 specificly for an SSL object with SSL_set_verify() is actually being
3274 used. Before the change, a verify_callback set with this function was
3275 ignored and the verify_callback() set in the SSL_CTX at the time of
3276 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3277 to allow the necessary settings.
3280 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3281 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3282 done automatically (in contradiction to the requirements of the C
3283 standard). This made problems when used from OpenSSH.
3286 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3287 dh->length and always used
3289 BN_rand_range(priv_key, dh->p).
3291 BN_rand_range() is not necessary for Diffie-Hellman, and this
3292 specific range makes Diffie-Hellman unnecessarily inefficient if
3293 dh->length (recommended exponent length) is much smaller than the
3294 length of dh->p. We could use BN_rand_range() if the order of
3295 the subgroup was stored in the DH structure, but we only have
3300 BN_rand(priv_key, l, ...)
3302 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3308 RSA_eay_public_encrypt
3309 RSA_eay_private_decrypt
3310 RSA_eay_private_encrypt (signing)
3311 RSA_eay_public_decrypt (signature verification)
3313 (default implementations for RSA_public_encrypt,
3314 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3315 always reject numbers >= n.
3318 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3319 to synchronize access to 'locking_thread'. This is necessary on
3320 systems where access to 'locking_thread' (an 'unsigned long'
3321 variable) is not atomic.
3324 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3325 *before* setting the 'crypto_lock_rand' flag. The previous code had
3326 a race condition if 0 is a valid thread ID.
3327 [Travis Vitek <vitek@roguewave.com>]
3329 *) Add support for shared libraries under Irix.
3330 [Albert Chin-A-Young <china@thewrittenword.com>]
3332 *) Add configuration option to build on Linux on both big-endian and
3334 [Ralf Baechle <ralf@uni-koblenz.de>]
3336 *) Add the possibility to create shared libraries on HP-UX.
3339 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3341 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3342 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3343 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3344 PRNG state recovery was possible based on the output of
3345 one PRNG request appropriately sized to gain knowledge on
3346 'md' followed by enough consecutive 1-byte PRNG requests
3347 to traverse all of 'state'.
3349 1. When updating 'md_local' (the current thread's copy of 'md')
3350 during PRNG output generation, hash all of the previous
3351 'md_local' value, not just the half used for PRNG output.
3353 2. Make the number of bytes from 'state' included into the hash
3354 independent from the number of PRNG bytes requested.
3356 The first measure alone would be sufficient to avoid
3357 Markku-Juhani's attack. (Actually it had never occurred
3358 to me that the half of 'md_local' used for chaining was the
3359 half from which PRNG output bytes were taken -- I had always
3360 assumed that the secret half would be used.) The second
3361 measure makes sure that additional data from 'state' is never
3362 mixed into 'md_local' in small portions; this heuristically
3363 further strengthens the PRNG.
3366 *) Fix crypto/bn/asm/mips3.s.
3369 *) When only the key is given to "enc", the IV is undefined. Print out
3370 an error message in this case.
3373 *) Handle special case when X509_NAME is empty in X509 printing routines.
3376 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3377 positive and less than q.
3380 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3381 used: it isn't thread safe and the add_lock_callback should handle
3383 [Paul Rose <Paul.Rose@bridge.com>]
3385 *) Verify that incoming data obeys the block size in
3386 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3390 [Ulf Möller, Bodo Möller]
3392 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3393 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3394 when fixing the server behaviour for backwards-compatible 'client
3395 hello' messages. (Note that the attack is impractical against
3396 SSL 3.0 and TLS 1.0 anyway because length and version checking
3397 means that the probability of guessing a valid ciphertext is
3398 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3401 Before 0.9.5, the countermeasure (hide the error by generating a
3402 random 'decryption result') did not work properly because
3403 ERR_clear_error() was missing, meaning that SSL_get_error() would
3404 detect the supposedly ignored error.
3406 Both problems are now fixed.
3409 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3410 (previously it was 1024).
3413 *) Fix for compatibility mode trust settings: ignore trust settings
3414 unless some valid trust or reject settings are present.
3417 *) Fix for blowfish EVP: its a variable length cipher.
3420 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3421 parameters in DSA public key structures and return an error in the
3422 DSA routines if parameters are absent.
3425 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3426 in the current directory if neither $RANDFILE nor $HOME was set.
3427 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3428 caused some confusion to Windows users who haven't defined $HOME.
3429 Thus RAND_file_name() is changed again: e_os.h can define a
3430 DEFAULT_HOME, which will be used if $HOME is not set.
3431 For Windows, we use "C:"; on other platforms, we still require
3432 environment variables.
3434 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3435 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3436 having multiple threads call RAND_poll() concurrently.
3439 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3440 combination of a flag and a thread ID variable.
3441 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3442 flag), *other* threads can enter ssleay_add_bytes without obeying
3443 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3444 that they do not hold after the first thread unsets add_do_not_lock).
3447 *) Change bctest again: '-x' expressions are not available in all
3451 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3453 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3454 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3456 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3457 the default extension for executables, if any. Also, make the perl
3458 scripts that use symlink() to test if it really exists and use "cp"
3459 if it doesn't. All this made OpenSSL compilable and installable in
3463 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3464 If SEQUENCE is length is indefinite just set c->slen to the total
3465 amount of data available.
3466 [Steve Henson, reported by shige@FreeBSD.org]
3467 [This change does not apply to 0.9.7.]
3469 *) Change bctest to avoid here-documents inside command substitution
3470 (workaround for FreeBSD /bin/sh bug).
3471 For compatibility with Ultrix, avoid shell functions (introduced
3472 in the bctest version that searches along $PATH).
3475 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3476 with des_encrypt() defined on some operating systems, like Solaris
3480 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3481 On the Importance of Eliminating Errors in Cryptographic
3482 Computations, J. Cryptology 14 (2001) 2, 101-119,
3483 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3486 *) MIPS assembler BIGNUM division bug fix.
3489 *) Disabled incorrect Alpha assembler code.
3492 *) Fix PKCS#7 decode routines so they correctly update the length
3493 after reading an EOC for the EXPLICIT tag.
3495 [This change does not apply to 0.9.7.]
3497 *) Fix bug in PKCS#12 key generation routines. This was triggered
3498 if a 3DES key was generated with a 0 initial byte. Include
3499 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3500 (but broken) behaviour.
3503 *) Enhance bctest to search for a working bc along $PATH and print
3505 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3507 *) Fix memory leaks in err.c: free err_data string if necessary;
3508 don't write to the wrong index in ERR_set_error_data.
3511 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3515 *) Replace rdtsc with _emit statements for VC++ version 5.
3516 [Jeremy Cooper <jeremy@baymoo.org>]
3518 *) Make it possible to reuse SSLv2 sessions.
3521 *) In copy_email() check for >= 0 as a return value for
3522 X509_NAME_get_index_by_NID() since 0 is a valid index.
3523 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3525 *) Avoid coredump with unsupported or invalid public keys by checking if
3526 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3527 PKCS7_verify() fails with non detached data.
3530 *) Don't use getenv in library functions when run as setuid/setgid.
3531 New function OPENSSL_issetugid().
3534 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3535 due to incorrect handling of multi-threading:
3537 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3539 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3541 3. Count how many times MemCheck_off() has been called so that
3542 nested use can be treated correctly. This also avoids
3543 inband-signalling in the previous code (which relied on the
3544 assumption that thread ID 0 is impossible).
3547 *) Add "-rand" option also to s_client and s_server.
3550 *) Fix CPU detection on Irix 6.x.
3551 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3552 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3554 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3557 [This change does not apply to 0.9.7.]
3559 *) Use the cached encoding of an X509_NAME structure rather than
3560 copying it. This is apparently the reason for the libsafe "errors"
3561 but the code is actually correct.
3564 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3565 Bleichenbacher's DSA attack.
3566 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3567 to be set and top=0 forces the highest bit to be set; top=-1 is new
3568 and leaves the highest bit random.
3569 [Ulf Moeller, Bodo Moeller]
3571 *) In the NCONF_...-based implementations for CONF_... queries
3572 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3573 a temporary CONF structure with the data component set to NULL
3574 (which gives segmentation faults in lh_retrieve).
3575 Instead, use NULL for the CONF pointer in CONF_get_string and
3576 CONF_get_number (which may use environment variables) and directly
3577 return NULL from CONF_get_section.
3580 *) Fix potential buffer overrun for EBCDIC.
3583 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3584 keyUsage if basicConstraints absent for a CA.
3587 *) Make SMIME_write_PKCS7() write mail header values with a format that
3588 is more generally accepted (no spaces before the semicolon), since
3589 some programs can't parse those values properly otherwise. Also make
3590 sure BIO's that break lines after each write do not create invalid
3594 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3595 macros previously used would not encode an empty SEQUENCE OF
3596 and break the signature.
3598 [This change does not apply to 0.9.7.]
3600 *) Zero the premaster secret after deriving the master secret in
3604 *) Add some EVP_add_digest_alias registrations (as found in
3605 OpenSSL_add_all_digests()) to SSL_library_init()
3606 aka OpenSSL_add_ssl_algorithms(). This provides improved
3607 compatibility with peers using X.509 certificates
3608 with unconventional AlgorithmIdentifier OIDs.
3611 *) Fix for Irix with NO_ASM.
3612 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3614 *) ./config script fixes.
3615 [Ulf Moeller, Richard Levitte]
3617 *) Fix 'openssl passwd -1'.
3620 *) Change PKCS12_key_gen_asc() so it can cope with non null
3621 terminated strings whose length is passed in the passlen
3622 parameter, for example from PEM callbacks. This was done
3623 by adding an extra length parameter to asc2uni().
3624 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3626 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3627 call failed, free the DSA structure.
3630 *) Fix to uni2asc() to cope with zero length Unicode strings.
3631 These are present in some PKCS#12 files.
3634 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3635 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3636 when writing a 32767 byte record.
3637 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3639 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3640 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3642 (RSA objects have a reference count access to which is protected
3643 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3644 so they are meant to be shared between threads.)
3645 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3646 "Reddie, Steven" <Steven.Reddie@ca.com>]
3648 *) Fix a deadlock in CRYPTO_mem_leaks().
3651 *) Use better test patterns in bntest.
3654 *) rand_win.c fix for Borland C.
3657 *) BN_rshift bugfix for n == 0.
3660 *) Add a 'bctest' script that checks for some known 'bc' bugs
3661 so that 'make test' does not abort just because 'bc' is broken.
3664 *) Store verify_result within SSL_SESSION also for client side to
3665 avoid potential security hole. (Re-used sessions on the client side
3666 always resulted in verify_result==X509_V_OK, not using the original
3667 result of the server certificate verification.)
3670 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3671 SSL3_RT_APPLICATION_DATA, return 0.
3672 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3676 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3677 releases, have been re-implemented by renaming the previous
3678 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3679 and ssl3_read_internal, respectively, and adding 'peek' parameters
3680 to them. The new ssl[23]_{read,peek} functions are calls to
3681 ssl[23]_read_internal with the 'peek' flag set appropriately.
3682 A 'peek' parameter has also been added to ssl3_read_bytes, which
3683 does the actual work for ssl3_read_internal.
3686 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3687 the method-specific "init()" handler. Also clean up ex_data after
3688 calling the method-specific "finish()" handler. Previously, this was
3689 happening the other way round.
3692 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3693 The previous value, 12, was not always sufficient for BN_mod_exp().
3696 *) Make sure that shared libraries get the internal name engine with
3697 the full version number and not just 0. This should mark the
3698 shared libraries as not backward compatible. Of course, this should
3699 be changed again when we can guarantee backward binary compatibility.
3702 *) Fix typo in get_cert_by_subject() in by_dir.c
3703 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3705 *) Rework the system to generate shared libraries:
3707 - Make note of the expected extension for the shared libraries and
3708 if there is a need for symbolic links from for example libcrypto.so.0
3709 to libcrypto.so.0.9.7. There is extended info in Configure for
3712 - Make as few rebuilds of the shared libraries as possible.
3714 - Still avoid linking the OpenSSL programs with the shared libraries.
3716 - When installing, install the shared libraries separately from the
3720 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3722 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3723 and not in SSL_clear because the latter is also used by the
3724 accept/connect functions; previously, the settings made by
3725 SSL_set_read_ahead would be lost during the handshake.
3726 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3728 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3729 Previously, it would create entries for disableed algorithms no
3733 *) Added several new manual pages for SSL_* function.
3736 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3738 *) In ssl23_get_client_hello, generate an error message when faced
3739 with an initial SSL 3.0/TLS record that is too small to contain the
3740 first two bytes of the ClientHello message, i.e. client_version.
3741 (Note that this is a pathologic case that probably has never happened
3742 in real life.) The previous approach was to use the version number
3743 from the record header as a substitute; but our protocol choice
3744 should not depend on that one because it is not authenticated
3745 by the Finished messages.
3748 *) More robust randomness gathering functions for Windows.
3749 [Jeffrey Altman <jaltman@columbia.edu>]
3751 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3752 not set then we don't setup the error code for issuer check errors
3753 to avoid possibly overwriting other errors which the callback does
3754 handle. If an application does set the flag then we assume it knows
3755 what it is doing and can handle the new informational codes
3759 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3760 a general "ANY" type, as such it should be able to decode anything
3761 including tagged types. However it didn't check the class so it would
3762 wrongly interpret tagged types in the same way as their universal
3763 counterpart and unknown types were just rejected. Changed so that the
3764 tagged and unknown types are handled in the same way as a SEQUENCE:
3765 that is the encoding is stored intact. There is also a new type
3766 "V_ASN1_OTHER" which is used when the class is not universal, in this
3767 case we have no idea what the actual type is so we just lump them all
3771 *) On VMS, stdout may very well lead to a file that is written to
3772 in a record-oriented fashion. That means that every write() will
3773 write a separate record, which will be read separately by the
3774 programs trying to read from it. This can be very confusing.
3776 The solution is to put a BIO filter in the way that will buffer
3777 text until a linefeed is reached, and then write everything a
3778 line at a time, so every record written will be an actual line,
3779 not chunks of lines and not (usually doesn't happen, but I've
3780 seen it once) several lines in one record. BIO_f_linebuffer() is
3783 Currently, it's a VMS-only method, because that's where it has
3784 been tested well enough.
3787 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3788 it can return incorrect results.
3789 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3790 but it was in 0.9.6-beta[12].)
3793 *) Disable the check for content being present when verifying detached
3794 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3795 include zero length content when signing messages.
3798 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3799 BIO_ctrl (for BIO pairs).
3802 *) Add DSO method for VMS.
3805 *) Bug fix: Montgomery multiplication could produce results with the
3809 *) Add RPM specification openssl.spec and modify it to build three
3810 packages. The default package contains applications, application
3811 documentation and run-time libraries. The devel package contains
3812 include files, static libraries and function documentation. The
3813 doc package contains the contents of the doc directory. The original
3814 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3817 *) Add a large number of documentation files for many SSL routines.
3818 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3820 *) Add a configuration entry for Sony News 4.
3821 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3823 *) Don't set the two most significant bits to one when generating a
3824 random number < q in the DSA library.
3827 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3828 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3829 the underlying transport is blocking) if a handshake took place.
3830 (The default behaviour is needed by applications such as s_client
3831 and s_server that use select() to determine when to use SSL_read;
3832 but for applications that know in advance when to expect data, it
3833 just makes things more complicated.)
3836 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3840 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3841 work better on such systems.
3842 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3844 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3845 Update PKCS12_parse() so it copies the friendlyName and the
3846 keyid to the certificates aux info.
3849 *) Fix bug in PKCS7_verify() which caused an infinite loop
3850 if there was more than one signature.
3851 [Sven Uszpelkat <su@celocom.de>]
3853 *) Major change in util/mkdef.pl to include extra information
3854 about each symbol, as well as presentig variables as well
3855 as functions. This change means that there's n more need
3856 to rebuild the .num files when some algorithms are excluded.
3859 *) Allow the verify time to be set by an application,
3860 rather than always using the current time.
3863 *) Phase 2 verify code reorganisation. The certificate
3864 verify code now looks up an issuer certificate by a
3865 number of criteria: subject name, authority key id
3866 and key usage. It also verifies self signed certificates
3867 by the same criteria. The main comparison function is
3868 X509_check_issued() which performs these checks.
3870 Lot of changes were necessary in order to support this
3871 without completely rewriting the lookup code.
3873 Authority and subject key identifier are now cached.
3875 The LHASH 'certs' is X509_STORE has now been replaced
3876 by a STACK_OF(X509_OBJECT). This is mainly because an
3877 LHASH can't store or retrieve multiple objects with
3878 the same hash value.
3880 As a result various functions (which were all internal
3881 use only) have changed to handle the new X509_STORE
3882 structure. This will break anything that messed round
3883 with X509_STORE internally.
3885 The functions X509_STORE_add_cert() now checks for an
3886 exact match, rather than just subject name.
3888 The X509_STORE API doesn't directly support the retrieval
3889 of multiple certificates matching a given criteria, however
3890 this can be worked round by performing a lookup first
3891 (which will fill the cache with candidate certificates)
3892 and then examining the cache for matches. This is probably
3893 the best we can do without throwing out X509_LOOKUP
3894 entirely (maybe later...).
3896 The X509_VERIFY_CTX structure has been enhanced considerably.
3898 All certificate lookup operations now go via a get_issuer()
3899 callback. Although this currently uses an X509_STORE it
3900 can be replaced by custom lookups. This is a simple way
3901 to bypass the X509_STORE hackery necessary to make this
3902 work and makes it possible to use more efficient techniques
3903 in future. A very simple version which uses a simple
3904 STACK for its trusted certificate store is also provided
3905 using X509_STORE_CTX_trusted_stack().
3907 The verify_cb() and verify() callbacks now have equivalents
3908 in the X509_STORE_CTX structure.
3910 X509_STORE_CTX also has a 'flags' field which can be used
3911 to customise the verify behaviour.
3914 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3915 excludes S/MIME capabilities.
3918 *) When a certificate request is read in keep a copy of the
3919 original encoding of the signed data and use it when outputing
3920 again. Signatures then use the original encoding rather than
3921 a decoded, encoded version which may cause problems if the
3922 request is improperly encoded.
3925 *) For consistency with other BIO_puts implementations, call
3926 buffer_write(b, ...) directly in buffer_puts instead of calling
3929 In BIO_puts, increment b->num_write as in BIO_write.
3930 [Peter.Sylvester@EdelWeb.fr]
3932 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3933 BN_zero, we may not return a BIGNUM with an array consisting of
3937 *) Avoid calling abort() from within the library when problems are
3938 detected, except if preprocessor symbols have been defined
3939 (such as REF_CHECK, BN_DEBUG etc.).
3942 *) New openssl application 'rsautl'. This utility can be
3943 used for low level RSA operations. DER public key
3944 BIO/fp routines also added.
3947 *) New Configure entry and patches for compiling on QNX 4.
3948 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3950 *) A demo state-machine implementation was sponsored by
3951 Nuron (http://www.nuron.com/) and is now available in
3952 demos/state_machine.
3955 *) New options added to the 'dgst' utility for signature
3956 generation and verification.
3959 *) Unrecognized PKCS#7 content types are now handled via a
3960 catch all ASN1_TYPE structure. This allows unsupported
3961 types to be stored as a "blob" and an application can
3962 encode and decode it manually.
3965 *) Fix various signed/unsigned issues to make a_strex.c
3967 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3969 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3970 length if passed a buffer. ASN1_INTEGER_to_BN failed
3971 if passed a NULL BN and its argument was negative.
3972 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3974 *) Modification to PKCS#7 encoding routines to output definite
3975 length encoding. Since currently the whole structures are in
3976 memory there's not real point in using indefinite length
3977 constructed encoding. However if OpenSSL is compiled with
3978 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3981 *) Added BIO_vprintf() and BIO_vsnprintf().
3984 *) Added more prefixes to parse for in the the strings written
3985 through a logging bio, to cover all the levels that are available
3986 through syslog. The prefixes are now:
3988 PANIC, EMERG, EMR => LOG_EMERG
3989 ALERT, ALR => LOG_ALERT
3990 CRIT, CRI => LOG_CRIT
3991 ERROR, ERR => LOG_ERR
3992 WARNING, WARN, WAR => LOG_WARNING
3993 NOTICE, NOTE, NOT => LOG_NOTICE
3994 INFO, INF => LOG_INFO
3995 DEBUG, DBG => LOG_DEBUG
3997 and as before, if none of those prefixes are present at the
3998 beginning of the string, LOG_ERR is chosen.
4000 On Win32, the LOG_* levels are mapped according to this:
4002 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4003 LOG_WARNING => EVENTLOG_WARNING_TYPE
4004 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4008 *) Made it possible to reconfigure with just the configuration
4009 argument "reconf" or "reconfigure". The command line arguments
4010 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4011 and are retrieved from there when reconfiguring.
4015 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4017 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4020 *) The obj_dat.pl script was messing up the sorting of object
4021 names. The reason was that it compared the quoted version
4022 of strings as a result "OCSP" > "OCSP Signing" because
4023 " > SPACE. Changed script to store unquoted versions of
4024 names and add quotes on output. It was also omitting some
4025 names from the lookup table if they were given a default
4026 value (that is if SN is missing it is given the same
4027 value as LN and vice versa), these are now added on the
4028 grounds that if an object has a name we should be able to
4029 look it up. Finally added warning output when duplicate
4030 short or long names are found.
4033 *) Changes needed for Tandem NSK.
4034 [Scott Uroff <scott@xypro.com>]
4036 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4037 RSA_padding_check_SSLv23(), special padding was never detected
4038 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4039 version rollback attacks was not effective.
4041 In s23_clnt.c, don't use special rollback-attack detection padding
4042 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4043 client; similarly, in s23_srvr.c, don't do the rollback check if
4044 SSL 2.0 is the only protocol enabled in the server.
4047 *) Make it possible to get hexdumps of unprintable data with 'openssl
4048 asn1parse'. By implication, the functions ASN1_parse_dump() and
4049 BIO_dump_indent() are added.
4052 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4053 these print out strings and name structures based on various
4054 flags including RFC2253 support and proper handling of
4055 multibyte characters. Added options to the 'x509' utility
4056 to allow the various flags to be set.
4059 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4060 Also change the functions X509_cmp_current_time() and
4061 X509_gmtime_adj() work with an ASN1_TIME structure,
4062 this will enable certificates using GeneralizedTime in validity
4063 dates to be checked.
4066 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4067 negative public key encodings) on by default,
4068 NO_NEG_PUBKEY_BUG can be set to disable it.
4071 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4072 content octets. An i2c_ASN1_OBJECT is unnecessary because
4073 the encoding can be trivially obtained from the structure.
4076 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4077 not read locks (CRYPTO_r_[un]lock).
4080 *) A first attempt at creating official support for shared
4081 libraries through configuration. I've kept it so the
4082 default is static libraries only, and the OpenSSL programs
4083 are always statically linked for now, but there are
4084 preparations for dynamic linking in place.
4085 This has been tested on Linux and Tru64.
4088 *) Randomness polling function for Win9x, as described in:
4089 Peter Gutmann, Software Generation of Practically Strong
4093 *) Fix so PRNG is seeded in req if using an already existing
4097 *) New options to smime application. -inform and -outform
4098 allow alternative formats for the S/MIME message including
4099 PEM and DER. The -content option allows the content to be
4100 specified separately. This should allow things like Netscape
4101 form signing output easier to verify.
4104 *) Fix the ASN1 encoding of tags using the 'long form'.
4107 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4108 STRING types. These convert content octets to and from the
4109 underlying type. The actual tag and length octets are
4110 already assumed to have been read in and checked. These
4111 are needed because all other string types have virtually
4112 identical handling apart from the tag. By having versions
4113 of the ASN1 functions that just operate on content octets
4114 IMPLICIT tagging can be handled properly. It also allows
4115 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4116 and ASN1_INTEGER are identical apart from the tag.
4119 *) Change the handling of OID objects as follows:
4121 - New object identifiers are inserted in objects.txt, following
4122 the syntax given in objects.README.
4123 - objects.pl is used to process obj_mac.num and create a new
4125 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4128 This is currently kind of a hack, and the perl code in objects.pl
4129 isn't very elegant, but it works as I intended. The simplest way
4130 to check that it worked correctly is to look in obj_dat.h and
4131 check the array nid_objs and make sure the objects haven't moved
4132 around (this is important!). Additions are OK, as well as
4133 consistent name changes.
4136 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4139 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4140 The given file adds to whatever has already been seeded into the
4141 random pool through the RANDFILE configuration file option or
4142 environment variable, or the default random state file.
4145 *) mkstack.pl now sorts each macro group into lexical order.
4146 Previously the output order depended on the order the files
4147 appeared in the directory, resulting in needless rewriting
4151 *) Patches to make OpenSSL compile under Win32 again. Mostly
4152 work arounds for the VC++ problem that it treats func() as
4153 func(void). Also stripped out the parts of mkdef.pl that
4154 added extra typesafe functions: these no longer exist.
4157 *) Reorganisation of the stack code. The macros are now all
4158 collected in safestack.h . Each macro is defined in terms of
4159 a "stack macro" of the form SKM_<name>(type, a, b). The
4160 DEBUG_SAFESTACK is now handled in terms of function casts,
4161 this has the advantage of retaining type safety without the
4162 use of additional functions. If DEBUG_SAFESTACK is not defined
4163 then the non typesafe macros are used instead. Also modified the
4164 mkstack.pl script to handle the new form. Needs testing to see
4165 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4166 the default if no major problems. Similar behaviour for ASN1_SET_OF
4167 and PKCS12_STACK_OF.
4170 *) When some versions of IIS use the 'NET' form of private key the
4171 key derivation algorithm is different. Normally MD5(password) is
4172 used as a 128 bit RC4 key. In the modified case
4173 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4174 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4175 as the old Netscape_RSA functions except they have an additional
4176 'sgckey' parameter which uses the modified algorithm. Also added
4177 an -sgckey command line option to the rsa utility. Thanks to
4178 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4179 algorithm to openssl-dev.
4182 *) The evp_local.h macros were using 'c.##kname' which resulted in
4183 invalid expansion on some systems (SCO 5.0.5 for example).
4184 Corrected to 'c.kname'.
4185 [Phillip Porch <root@theporch.com>]
4187 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4188 a STACK of email addresses from a certificate or request, these look
4189 in the subject name and the subject alternative name extensions and
4190 omit any duplicate addresses.
4193 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4194 This makes DSA verification about 2 % faster.
4197 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4198 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4199 plus overhead for 1024 bit moduli).
4200 This makes exponentiations about 0.5 % faster for 1024 bit
4201 exponents (as measured by "openssl speed rsa2048").
4204 *) Rename memory handling macros to avoid conflicts with other
4206 Malloc => OPENSSL_malloc
4207 Malloc_locked => OPENSSL_malloc_locked
4208 Realloc => OPENSSL_realloc
4209 Free => OPENSSL_free
4212 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4213 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4216 *) CygWin32 support.
4217 [John Jarvie <jjarvie@newsguy.com>]
4219 *) The type-safe stack code has been rejigged. It is now only compiled
4220 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4221 by default all type-specific stack functions are "#define"d back to
4222 standard stack functions. This results in more streamlined output
4223 but retains the type-safety checking possibilities of the original
4227 *) The STACK code has been cleaned up, and certain type declarations
4228 that didn't make a lot of sense have been brought in line. This has
4229 also involved a cleanup of sorts in safestack.h to more correctly
4230 map type-safe stack functions onto their plain stack counterparts.
4231 This work has also resulted in a variety of "const"ifications of
4232 lots of the code, especially "_cmp" operations which should normally
4233 be prototyped with "const" parameters anyway.
4236 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4237 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4238 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4239 where all of 'md' is used each time the PRNG is used, but 'state'
4240 is used only indexed by a cyclic counter. As entropy may not be
4241 well distributed from the beginning, 'md' is important as a
4242 chaining variable. However, the output function chains only half
4243 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4244 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4245 in all of 'state' being rewritten, with the new values depending
4246 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4249 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4250 the handshake is continued after ssl_verify_cert_chain();
4251 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4252 can lead to 'unexplainable' connection aborts later.
4253 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4255 *) Major EVP API cipher revision.
4256 Add hooks for extra EVP features. This allows various cipher
4257 parameters to be set in the EVP interface. Support added for variable
4258 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4259 setting of RC2 and RC5 parameters.
4261 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4264 Remove lots of duplicated code from the EVP library. For example *every*
4265 cipher init() function handles the 'iv' in the same way according to the
4266 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4267 for CFB and OFB modes they zero ctx->num.
4269 New functionality allows removal of S/MIME code RC2 hack.
4271 Most of the routines have the same form and so can be declared in terms
4274 By shifting this to the top level EVP_CipherInit() it can be removed from
4275 all individual ciphers. If the cipher wants to handle IVs or keys
4276 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4279 Change lots of functions like EVP_EncryptUpdate() to now return a
4280 value: although software versions of the algorithms cannot fail
4281 any installed hardware versions can.
4284 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4285 this option is set, tolerate broken clients that send the negotiated
4286 protocol version number instead of the requested protocol version
4290 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4291 i.e. non-zero for export ciphersuites, zero otherwise.
4292 Previous versions had this flag inverted, inconsistent with
4293 rsa_tmp_cb (..._TMP_RSA_CB).
4294 [Bodo Moeller; problem reported by Amit Chopra]
4296 *) Add missing DSA library text string. Work around for some IIS
4297 key files with invalid SEQUENCE encoding.
4300 *) Add a document (doc/standards.txt) that list all kinds of standards
4301 and so on that are implemented in OpenSSL.
4304 *) Enhance c_rehash script. Old version would mishandle certificates
4305 with the same subject name hash and wouldn't handle CRLs at all.
4306 Added -fingerprint option to crl utility, to support new c_rehash
4310 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4313 *) Fix for SSL server purpose checking. Server checking was
4314 rejecting certificates which had extended key usage present
4315 but no ssl client purpose.
4316 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4318 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4319 is a little unclear about how a blank password is handled.
4320 Since the password in encoded as a BMPString with terminating
4321 double NULL a zero length password would end up as just the
4322 double NULL. However no password at all is different and is
4323 handled differently in the PKCS#12 key generation code. NS
4324 treats a blank password as zero length. MSIE treats it as no
4325 password on export: but it will try both on import. We now do
4326 the same: PKCS12_parse() tries zero length and no password if
4327 the password is set to "" or NULL (NULL is now a valid password:
4328 it wasn't before) as does the pkcs12 application.
4331 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4332 perror when PEM_read_bio_X509_REQ fails, the error message must
4333 be obtained from the error queue.
4336 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4337 it in ERR_remove_state if appropriate, and change ERR_get_state
4338 accordingly to avoid race conditions (this is necessary because
4339 thread_hash is no longer constant once set).
4342 *) Bugfix for linux-elf makefile.one.
4345 *) RSA_get_default_method() will now cause a default
4346 RSA_METHOD to be chosen if one doesn't exist already.
4347 Previously this was only set during a call to RSA_new()
4348 or RSA_new_method(NULL) meaning it was possible for
4349 RSA_get_default_method() to return NULL.
4352 *) Added native name translation to the existing DSO code
4353 that will convert (if the flag to do so is set) filenames
4354 that are sufficiently small and have no path information
4355 into a canonical native form. Eg. "blah" converted to
4356 "libblah.so" or "blah.dll" etc.
4359 *) New function ERR_error_string_n(e, buf, len) which is like
4360 ERR_error_string(e, buf), but writes at most 'len' bytes
4361 including the 0 terminator. For ERR_error_string_n, 'buf'
4363 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4365 *) CONF library reworked to become more general. A new CONF
4366 configuration file reader "class" is implemented as well as a
4367 new functions (NCONF_*, for "New CONF") to handle it. The now
4368 old CONF_* functions are still there, but are reimplemented to
4369 work in terms of the new functions. Also, a set of functions
4370 to handle the internal storage of the configuration data is
4371 provided to make it easier to write new configuration file
4372 reader "classes" (I can definitely see something reading a
4373 configuration file in XML format, for example), called _CONF_*,
4374 or "the configuration storage API"...
4376 The new configuration file reading functions are:
4378 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4379 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4381 NCONF_default, NCONF_WIN32
4383 NCONF_dump_fp, NCONF_dump_bio
4385 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4386 NCONF_new creates a new CONF object. This works in the same way
4387 as other interfaces in OpenSSL, like the BIO interface.
4388 NCONF_dump_* dump the internal storage of the configuration file,
4389 which is useful for debugging. All other functions take the same
4390 arguments as the old CONF_* functions wth the exception of the
4391 first that must be a `CONF *' instead of a `LHASH *'.
4393 To make it easer to use the new classes with the old CONF_* functions,
4394 the function CONF_set_default_method is provided.
4397 *) Add '-tls1' option to 'openssl ciphers', which was already
4398 mentioned in the documentation but had not been implemented.
4399 (This option is not yet really useful because even the additional
4400 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4403 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4404 OpenSSL-based applications) load shared libraries and bind to
4405 them in a portable way.
4406 [Geoff Thorpe, with contributions from Richard Levitte]
4408 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4410 *) Make sure _lrotl and _lrotr are only used with MSVC.
4412 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4413 (the default implementation of RAND_status).
4415 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4416 to '-clrext' (= clear extensions), as intended and documented.
4417 [Bodo Moeller; inconsistency pointed out by Michael Attili
4420 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4421 was larger than the MD block size.
4422 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4424 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4425 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4426 using the passed key: if the passed key was a private key the result
4427 of X509_print(), for example, would be to print out all the private key
4431 *) des_quad_cksum() byte order bug fix.
4432 [Ulf Möller, using the problem description in krb4-0.9.7, where
4433 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4435 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4437 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4439 *) For easily testing in shell scripts whether some command
4440 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4441 returns with exit code 0 iff no command of the given name is available.
4442 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4443 the output goes to stdout and nothing is printed to stderr.
4444 Additional arguments are always ignored.
4446 Since for each cipher there is a command of the same name,
4447 the 'no-cipher' compilation switches can be tested this way.
4449 ('openssl no-XXX' is not able to detect pseudo-commands such
4450 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4453 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4456 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4457 is set; it will be thrown away anyway because each handshake creates
4459 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4460 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4461 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4462 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4465 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4466 'Q' and 'R' lose their special meanings (quit/renegotiate).
4467 This is part of what -quiet does; unlike -quiet, -ign_eof
4468 does not suppress any output.
4471 *) Add compatibility options to the purpose and trust code. The
4472 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4473 accepts a certificate or CA, this was the previous behaviour,
4474 with all the associated security issues.
4476 X509_TRUST_COMPAT is the old trust behaviour: only and
4477 automatically trust self signed roots in certificate store. A
4478 new trust setting X509_TRUST_DEFAULT is used to specify that
4479 a purpose has no associated trust setting and it should instead
4480 use the value in the default purpose.
4483 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4484 and fix a memory leak.
4487 *) In util/mkerr.pl (which implements 'make errors'), preserve
4488 reason strings from the previous version of the .c file, as
4489 the default to have only downcase letters (and digits) in
4490 automatically generated reasons codes is not always appropriate.
4493 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4494 using strerror. Previously, ERR_reason_error_string() returned
4495 library names as reason strings for SYSerr; but SYSerr is a special
4496 case where small numbers are errno values, not library numbers.
4499 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4500 converts DSA parameters into DH parameters. (When creating parameters,
4501 DSA_generate_parameters is used.)
4504 *) Include 'length' (recommended exponent length) in C code generated
4505 by 'openssl dhparam -C'.
4508 *) The second argument to set_label in perlasm was already being used
4509 so couldn't be used as a "file scope" flag. Moved to third argument
4513 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4514 instead of RAND_bytes for encryption IVs and salts.
4517 *) Include RAND_status() into RAND_METHOD instead of implementing
4518 it only for md_rand.c Otherwise replacing the PRNG by calling
4519 RAND_set_rand_method would be impossible.
4522 *) Don't let DSA_generate_key() enter an infinite loop if the random
4523 number generation fails.
4526 *) New 'rand' application for creating pseudo-random output.
4529 *) Added configuration support for Linux/IA64
4530 [Rolf Haberrecker <rolf@suse.de>]
4532 *) Assembler module support for Mingw32.
4535 *) Shared library support for HPUX (in shlib/).
4536 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4538 *) Shared library support for Solaris gcc.
4539 [Lutz Behnke <behnke@trustcenter.de>]
4541 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4543 *) PKCS7_encrypt() was adding text MIME headers twice because they
4544 were added manually and by SMIME_crlf_copy().
4547 *) In bntest.c don't call BN_rand with zero bits argument.
4548 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4550 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4551 case was implemented. This caused BN_div_recp() to fail occasionally.
4554 *) Add an optional second argument to the set_label() in the perl
4555 assembly language builder. If this argument exists and is set
4556 to 1 it signals that the assembler should use a symbol whose
4557 scope is the entire file, not just the current function. This
4558 is needed with MASM which uses the format label:: for this scope.
4559 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4561 *) Change the ASN1 types so they are typedefs by default. Before
4562 almost all types were #define'd to ASN1_STRING which was causing
4563 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4567 *) Change names of new functions to the new get1/get0 naming
4568 convention: After 'get1', the caller owns a reference count
4569 and has to call ..._free; 'get0' returns a pointer to some
4570 data structure without incrementing reference counters.
4571 (Some of the existing 'get' functions increment a reference
4572 counter, some don't.)
4573 Similarly, 'set1' and 'add1' functions increase reference
4574 counters or duplicate objects.
4577 *) Allow for the possibility of temp RSA key generation failure:
4578 the code used to assume it always worked and crashed on failure.
4581 *) Fix potential buffer overrun problem in BIO_printf().
4582 [Ulf Möller, using public domain code by Patrick Powell; problem
4583 pointed out by David Sacerdote <das33@cornell.edu>]
4585 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4586 RAND_egd() and RAND_status(). In the command line application,
4587 the EGD socket can be specified like a seed file using RANDFILE
4591 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4592 Some CAs (e.g. Verisign) distribute certificates in this form.
4595 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4596 list to exclude them. This means that no special compilation option
4597 is needed to use anonymous DH: it just needs to be included in the
4601 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4602 EVP_MD_type. The old functionality is available in a new macro called
4603 EVP_MD_md(). Change code that uses it and update docs.
4606 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4607 where the 'void *' argument is replaced by a function pointer argument.
4608 Previously 'void *' was abused to point to functions, which works on
4609 many platforms, but is not correct. As these functions are usually
4610 called by macros defined in OpenSSL header files, most source code
4611 should work without changes.
4614 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4615 sections with information on -D... compiler switches used for
4616 compiling the library so that applications can see them. To enable
4617 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4618 must be defined. E.g.,
4619 #define OPENSSL_ALGORITHM_DEFINES
4620 #include <openssl/opensslconf.h>
4621 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4622 [Richard Levitte, Ulf and Bodo Möller]
4624 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4628 *) Change the 'other' type in certificate aux info to a STACK_OF
4629 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4630 the required ASN1 format: arbitrary types determined by an OID.
4633 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4634 argument to 'req'. This is not because the function is newer or
4635 better than others it just uses the work 'NEW' in the certificate
4636 request header lines. Some software needs this.
4639 *) Reorganise password command line arguments: now passwords can be
4640 obtained from various sources. Delete the PEM_cb function and make
4641 it the default behaviour: i.e. if the callback is NULL and the
4642 usrdata argument is not NULL interpret it as a null terminated pass
4643 phrase. If usrdata and the callback are NULL then the pass phrase
4644 is prompted for as usual.
4647 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4648 the support is automatically enabled. The resulting binaries will
4649 autodetect the card and use it if present.
4650 [Ben Laurie and Compaq Inc.]
4652 *) Work around for Netscape hang bug. This sends certificate request
4653 and server done in one record. Since this is perfectly legal in the
4654 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4655 the bugs/SSLv3 entry for more info.
4658 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4661 *) Add -rand argument to smime and pkcs12 applications and read/write
4665 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4668 *) Add command line password options to the remaining applications.
4671 *) Bug fix for BN_div_recp() for numerators with an even number of
4675 *) More tests in bntest.c, and changed test_bn output.
4678 *) ./config recognizes MacOS X now.
4681 *) Bug fix for BN_div() when the first words of num and divsor are
4682 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4685 *) Add support for various broken PKCS#8 formats, and command line
4686 options to produce them.
4689 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4690 get temporary BIGNUMs from a BN_CTX.
4693 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4697 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4698 include a #define from the old name to the new. The original intent
4699 was that statically linked binaries could for example just call
4700 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4701 link with digests. This never worked becayse SSLeay_add_all_digests()
4702 and SSLeay_add_all_ciphers() were in the same source file so calling
4703 one would link with the other. They are now in separate source files.
4706 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4709 *) Use a less unusual form of the Miller-Rabin primality test (it used
4710 a binary algorithm for exponentiation integrated into the Miller-Rabin
4711 loop, our standard modexp algorithms are faster).
4714 *) Support for the EBCDIC character set completed.
4715 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4717 *) Source code cleanups: use const where appropriate, eliminate casts,
4718 use void * instead of char * in lhash.
4721 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4722 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4723 this the server could overwrite ephemeral keys that the client
4727 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4728 using 50 iterations of the Rabin-Miller test.
4730 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4731 iterations of the Rabin-Miller test as required by the appendix
4732 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4733 As BN_is_prime_fasttest includes trial division, DSA parameter
4734 generation becomes much faster.
4736 This implies a change for the callback functions in DSA_is_prime
4737 and DSA_generate_parameters: The callback function is called once
4738 for each positive witness in the Rabin-Miller test, not just
4739 occasionally in the inner loop; and the parameters to the
4740 callback function now provide an iteration count for the outer
4741 loop rather than for the current invocation of the inner loop.
4742 DSA_generate_parameters additionally can call the callback
4743 function with an 'iteration count' of -1, meaning that a
4744 candidate has passed the trial division test (when q is generated
4745 from an application-provided seed, trial division is skipped).
4748 *) New function BN_is_prime_fasttest that optionally does trial
4749 division before starting the Rabin-Miller test and has
4750 an additional BN_CTX * argument (whereas BN_is_prime always
4751 has to allocate at least one BN_CTX).
4752 'callback(1, -1, cb_arg)' is called when a number has passed the
4753 trial division stage.
4756 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4760 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4763 *) New function BN_pseudo_rand().
4766 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4767 bignum version of BN_from_montgomery() with the working code from
4768 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4772 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4773 made it impossible to use the same SSL_SESSION data structure in
4774 SSL2 clients in multiple threads.
4777 *) The return value of RAND_load_file() no longer counts bytes obtained
4778 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4779 to seed the PRNG (previously an explicit byte count was required).
4780 [Ulf Möller, Bodo Möller]
4782 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4783 used (char *) instead of (void *) and had casts all over the place.
4786 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4789 *) Retain source code compatibility for BN_prime_checks macro:
4790 BN_is_prime(..., BN_prime_checks, ...) now uses
4791 BN_prime_checks_for_size to determine the appropriate number of
4792 Rabin-Miller iterations.
4795 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4796 DH_CHECK_P_NOT_SAFE_PRIME.
4797 (Check if this is true? OpenPGP calls them "strong".)
4800 *) Merge the functionality of "dh" and "gendh" programs into a new program
4801 "dhparam". The old programs are retained for now but will handle DH keys
4802 (instead of parameters) in future.
4805 *) Make the ciphers, s_server and s_client programs check the return values
4806 when a new cipher list is set.
4809 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4810 ciphers. Before when the 56bit ciphers were enabled the sorting was
4813 The syntax for the cipher sorting has been extended to support sorting by
4814 cipher-strength (using the strength_bits hard coded in the tables).
4815 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4817 Fix a bug in the cipher-command parser: when supplying a cipher command
4818 string with an "undefined" symbol (neither command nor alphanumeric
4819 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4820 an error is flagged.
4822 Due to the strength-sorting extension, the code of the
4823 ssl_create_cipher_list() function was completely rearranged. I hope that
4824 the readability was also increased :-)
4825 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4827 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4828 for the first serial number and places 2 in the serial number file. This
4829 avoids problems when the root CA is created with serial number zero and
4830 the first user certificate has the same issuer name and serial number
4834 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4835 the new code. Add documentation for this stuff.
4838 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4839 X509_*() to X509at_*() on the grounds that they don't handle X509
4840 structures and behave in an analagous way to the X509v3 functions:
4841 they shouldn't be called directly but wrapper functions should be used
4844 So we also now have some wrapper functions that call the X509at functions
4845 when passed certificate requests. (TO DO: similar things can be done with
4846 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4847 things. Some of these need some d2i or i2d and print functionality
4848 because they handle more complex structures.)
4851 *) Add missing #ifndefs that caused missing symbols when building libssl
4852 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4853 NO_RSA in ssl/s2*.c.
4854 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4856 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4857 has a return value which indicates the quality of the random data
4858 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4859 error queue. New function RAND_pseudo_bytes() generates output that is
4860 guaranteed to be unique but not unpredictable. RAND_add is like
4861 RAND_seed, but takes an extra argument for an entropy estimate
4862 (RAND_seed always assumes full entropy).
4865 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4866 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4867 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4868 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4869 false-positive rate of at most 2^-80 for random input.
4872 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4875 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4876 in the 0.9.5 release), this returns the chain
4877 from an X509_CTX structure with a dup of the stack and all
4878 the X509 reference counts upped: so the stack will exist
4879 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4882 Also make SSL_SESSION_print() print out the verify return
4886 *) Add manpage for the pkcs12 command. Also change the default
4887 behaviour so MAC iteration counts are used unless the new
4888 -nomaciter option is used. This improves file security and
4889 only older versions of MSIE (4.0 for example) need it.
4892 *) Honor the no-xxx Configure options when creating .DEF files.
4895 *) Add PKCS#10 attributes to field table: challengePassword,
4896 unstructuredName and unstructuredAddress. These are taken from
4897 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4898 international characters are used.
4900 More changes to X509_ATTRIBUTE code: allow the setting of types
4901 based on strings. Remove the 'loc' parameter when adding
4902 attributes because these will be a SET OF encoding which is sorted
4906 *) Initial changes to the 'req' utility to allow request generation
4907 automation. This will allow an application to just generate a template
4908 file containing all the field values and have req construct the
4911 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4912 used all over the place including certificate requests and PKCS#7
4913 structures. They are currently handled manually where necessary with
4914 some primitive wrappers for PKCS#7. The new functions behave in a
4915 manner analogous to the X509 extension functions: they allow
4916 attributes to be looked up by NID and added.
4918 Later something similar to the X509V3 code would be desirable to
4919 automatically handle the encoding, decoding and printing of the
4920 more complex types. The string types like challengePassword can
4921 be handled by the string table functions.
4923 Also modified the multi byte string table handling. Now there is
4924 a 'global mask' which masks out certain types. The table itself
4925 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4926 is useful when for example there is only one permissible type
4927 (as in countryName) and using the mask might result in no valid
4931 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4932 SSL_get_peer_finished to allow applications to obtain the latest
4933 Finished messages sent to the peer or expected from the peer,
4934 respectively. (SSL_get_peer_finished is usually the Finished message
4935 actually received from the peer, otherwise the protocol will be aborted.)
4937 As the Finished message are message digests of the complete handshake
4938 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4939 be used for external authentication procedures when the authentication
4940 provided by SSL/TLS is not desired or is not enough.
4943 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4944 the host supports BWX extension and if Compaq C is present on the
4945 $PATH. Just exploiting of the BWX extension results in 20-30%
4946 performance kick for some algorithms, e.g. DES and RC4 to mention
4947 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4951 *) Add support for MS "fast SGC". This is arguably a violation of the
4952 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4953 weak crypto and after checking the certificate is SGC a second one
4954 with strong crypto. MS SGC stops the first handshake after receiving
4955 the server certificate message and sends a second client hello. Since
4956 a server will typically do all the time consuming operations before
4957 expecting any further messages from the client (server key exchange
4958 is the most expensive) there is little difference between the two.
4960 To get OpenSSL to support MS SGC we have to permit a second client
4961 hello message after we have sent server done. In addition we have to
4962 reset the MAC if we do get this second client hello.
4965 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4966 if a DER encoded private key is RSA or DSA traditional format. Changed
4967 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4968 format DER encoded private key. Newer code should use PKCS#8 format which
4969 has the key type encoded in the ASN1 structure. Added DER private key
4970 support to pkcs8 application.
4973 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4974 ciphersuites has been selected (as required by the SSL 3/TLS 1
4975 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4976 is set, we interpret this as a request to violate the specification
4977 (the worst that can happen is a handshake failure, and 'correct'
4978 behaviour would result in a handshake failure anyway).
4981 *) In SSL_CTX_add_session, take into account that there might be multiple
4982 SSL_SESSION structures with the same session ID (e.g. when two threads
4983 concurrently obtain them from an external cache).
4984 The internal cache can handle only one SSL_SESSION with a given ID,
4985 so if there's a conflict, we now throw out the old one to achieve
4989 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4990 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4991 some routines that use cipher OIDs: some ciphers do not have OIDs
4992 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4996 *) Simplify the trust setting structure and code. Now we just have
4997 two sequences of OIDs for trusted and rejected settings. These will
4998 typically have values the same as the extended key usage extension
4999 and any application specific purposes.
5001 The trust checking code now has a default behaviour: it will just
5002 check for an object with the same NID as the passed id. Functions can
5003 be provided to override either the default behaviour or the behaviour
5004 for a given id. SSL client, server and email already have functions
5005 in place for compatibility: they check the NID and also return "trusted"
5006 if the certificate is self signed.
5009 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5010 traditional format into an EVP_PKEY structure.
5013 *) Add a password callback function PEM_cb() which either prompts for
5014 a password if usr_data is NULL or otherwise assumes it is a null
5015 terminated password. Allow passwords to be passed on command line
5016 environment or config files in a few more utilities.
5019 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5020 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5021 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5022 Update documentation.
5025 *) Support for ASN1 "NULL" type. This could be handled before by using
5026 ASN1_TYPE but there wasn't any function that would try to read a NULL
5027 and produce an error if it couldn't. For compatibility we also have
5028 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5029 don't allocate anything because they don't need to.
5032 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5034 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5036 *) Rebuild of the memory allocation routines used by OpenSSL code and
5037 possibly others as well. The purpose is to make an interface that
5038 provide hooks so anyone can build a separate set of allocation and
5039 deallocation routines to be used by OpenSSL, for example memory
5040 pool implementations, or something else, which was previously hard
5041 since Malloc(), Realloc() and Free() were defined as macros having
5042 the values malloc, realloc and free, respectively (except for Win32
5043 compilations). The same is provided for memory debugging code.
5044 OpenSSL already comes with functionality to find memory leaks, but
5045 this gives people a chance to debug other memory problems.
5047 With these changes, a new set of functions and macros have appeared:
5049 CRYPTO_set_mem_debug_functions() [F]
5050 CRYPTO_get_mem_debug_functions() [F]
5051 CRYPTO_dbg_set_options() [F]
5052 CRYPTO_dbg_get_options() [F]
5053 CRYPTO_malloc_debug_init() [M]
5055 The memory debug functions are NULL by default, unless the library
5056 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5057 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5058 gives the standard debugging functions that come with OpenSSL) or
5059 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5060 provided by the library user) must be used. When the standard
5061 debugging functions are used, CRYPTO_dbg_set_options can be used to
5062 request additional information:
5063 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5064 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5066 Also, things like CRYPTO_set_mem_functions will always give the
5067 expected result (the new set of functions is used for allocation
5068 and deallocation) at all times, regardless of platform and compiler
5071 To finish it up, some functions that were never use in any other
5072 way than through macros have a new API and new semantic:
5075 CRYPTO_dbg_realloc()
5078 All macros of value have retained their old syntax.
5079 [Richard Levitte and Bodo Moeller]
5081 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5082 ordering of SMIMECapabilities wasn't in "strength order" and there
5083 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5087 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5088 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5089 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5091 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5092 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5093 functionality to handle multipart/signed properly) and a utility
5094 called 'smime' to call all this stuff. This is based on code I
5095 originally wrote for Celo who have kindly allowed it to be
5096 included in OpenSSL.
5099 *) Add variants des_set_key_checked and des_set_key_unchecked of
5100 des_set_key (aka des_key_sched). Global variable des_check_key
5101 decides which of these is called by des_set_key; this way
5102 des_check_key behaves as it always did, but applications and
5103 the library itself, which was buggy for des_check_key == 1,
5104 have a cleaner way to pick the version they need.
5107 *) New function PKCS12_newpass() which changes the password of a
5111 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5112 dynamic mix. In both cases the ids can be used as an index into the
5113 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5114 functions so they accept a list of the field values and the
5115 application doesn't need to directly manipulate the X509_TRUST
5119 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5123 *) Modify the way the V3 extension code looks up extensions. This now
5124 works in a similar way to the object code: we have some "standard"
5125 extensions in a static table which is searched with OBJ_bsearch()
5126 and the application can add dynamic ones if needed. The file
5127 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5128 updated whenever a new extension is added to the core code and kept
5129 in ext_nid order. There is a simple program 'tabtest.c' which checks
5130 this. New extensions are not added too often so this file can readily
5131 be maintained manually.
5133 There are two big advantages in doing things this way. The extensions
5134 can be looked up immediately and no longer need to be "added" using
5135 X509V3_add_standard_extensions(): this function now does nothing.
5136 [Side note: I get *lots* of email saying the extension code doesn't
5137 work because people forget to call this function]
5138 Also no dynamic allocation is done unless new extensions are added:
5139 so if we don't add custom extensions there is no need to call
5140 X509V3_EXT_cleanup().
5143 *) Modify enc utility's salting as follows: make salting the default. Add a
5144 magic header, so unsalted files fail gracefully instead of just decrypting
5145 to garbage. This is because not salting is a big security hole, so people
5146 should be discouraged from doing it.
5149 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5150 digest to be passed on the command line but it only used this
5151 parameter when signing a certificate. Modified so all relevant
5152 operations are affected by the digest parameter including the
5153 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5154 DSA key was used because it didn't fix the digest.
5157 *) Initial certificate chain verify code. Currently tests the untrusted
5158 certificates for consistency with the verify purpose (which is set
5159 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5161 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5162 this is because it will reject chains with invalid extensions whereas
5163 every previous version of OpenSSL and SSLeay made no checks at all.
5165 Trust code: checks the root CA for the relevant trust settings. Trust
5166 settings have an initial value consistent with the verify purpose: e.g.
5167 if the verify purpose is for SSL client use it expects the CA to be
5168 trusted for SSL client use. However the default value can be changed to
5169 permit custom trust settings: one example of this would be to only trust
5170 certificates from a specific "secure" set of CAs.
5172 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5173 which should be used for version portability: especially since the
5174 verify structure is likely to change more often now.
5176 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5177 to set them. If not set then assume SSL clients will verify SSL servers
5180 Two new options to the verify program: -untrusted allows a set of
5181 untrusted certificates to be passed in and -purpose which sets the
5182 intended purpose of the certificate. If a purpose is set then the
5183 new chain verify code is used to check extension consistency.
5186 *) Support for the authority information access extension.
5189 *) Modify RSA and DSA PEM read routines to transparently handle
5190 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5191 public keys in a format compatible with certificate
5192 SubjectPublicKeyInfo structures. Unfortunately there were already
5193 functions called *_PublicKey_* which used various odd formats so
5194 these are retained for compatibility: however the DSA variants were
5195 never in a public release so they have been deleted. Changed dsa/rsa
5196 utilities to handle the new format: note no releases ever handled public
5197 keys so we should be OK.
5199 The primary motivation for this change is to avoid the same fiasco
5200 that dogs private keys: there are several incompatible private key
5201 formats some of which are standard and some OpenSSL specific and
5202 require various evil hacks to allow partial transparent handling and
5203 even then it doesn't work with DER formats. Given the option anything
5204 other than PKCS#8 should be dumped: but the other formats have to
5205 stay in the name of compatibility.
5207 With public keys and the benefit of hindsight one standard format
5208 is used which works with EVP_PKEY, RSA or DSA structures: though
5209 it clearly returns an error if you try to read the wrong kind of key.
5211 Added a -pubkey option to the 'x509' utility to output the public key.
5212 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5213 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5214 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5215 that do the same as the EVP_PKEY_assign_*() except they up the
5216 reference count of the added key (they don't "swallow" the
5220 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5221 CRLs would fail if the file contained no certificates or no CRLs:
5222 added a new function to read in both types and return the number
5223 read: this means that if none are read it will be an error. The
5224 DER versions of the certificate and CRL reader would always fail
5225 because it isn't possible to mix certificates and CRLs in DER format
5226 without choking one or the other routine. Changed this to just read
5227 a certificate: this is the best we can do. Also modified the code
5228 in apps/verify.c to take notice of return codes: it was previously
5229 attempting to read in certificates from NULL pointers and ignoring
5230 any errors: this is one reason why the cert and CRL reader seemed
5231 to work. It doesn't check return codes from the default certificate
5232 routines: these may well fail if the certificates aren't installed.
5235 *) Code to support otherName option in GeneralName.
5238 *) First update to verify code. Change the verify utility
5239 so it warns if it is passed a self signed certificate:
5240 for consistency with the normal behaviour. X509_verify
5241 has been modified to it will now verify a self signed
5242 certificate if *exactly* the same certificate appears
5243 in the store: it was previously impossible to trust a
5244 single self signed certificate. This means that:
5245 openssl verify ss.pem
5246 now gives a warning about a self signed certificate but
5247 openssl verify -CAfile ss.pem ss.pem
5251 *) For servers, store verify_result in SSL_SESSION data structure
5252 (and add it to external session representation).
5253 This is needed when client certificate verifications fails,
5254 but an application-provided verification callback (set by
5255 SSL_CTX_set_cert_verify_callback) allows accepting the session
5256 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5257 but returns 1): When the session is reused, we have to set
5258 ssl->verify_result to the appropriate error code to avoid
5260 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5262 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5263 case in PKCS7_dataInit() where the signed PKCS7 structure
5264 didn't contain any existing data because it was being created.
5265 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5267 *) Add a salt to the key derivation routines in enc.c. This
5268 forms the first 8 bytes of the encrypted file. Also add a
5269 -S option to allow a salt to be input on the command line.
5272 *) New function X509_cmp(). Oddly enough there wasn't a function
5273 to compare two certificates. We do this by working out the SHA1
5274 hash and comparing that. X509_cmp() will be needed by the trust
5278 *) SSL_get1_session() is like SSL_get_session(), but increments
5279 the reference count in the SSL_SESSION returned.
5280 [Geoff Thorpe <geoff@eu.c2.net>]
5282 *) Fix for 'req': it was adding a null to request attributes.
5283 Also change the X509_LOOKUP and X509_INFO code to handle
5284 certificate auxiliary information.
5287 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5291 *) Add the possibility to add extra information to the memory leak
5292 detecting output, to form tracebacks, showing from where each
5293 allocation was originated: CRYPTO_push_info("constant string") adds
5294 the string plus current file name and line number to a per-thread
5295 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5296 is like calling CYRPTO_pop_info() until the stack is empty.
5297 Also updated memory leak detection code to be multi-thread-safe.
5300 *) Add options -text and -noout to pkcs7 utility and delete the
5301 encryption options which never did anything. Update docs.
5304 *) Add options to some of the utilities to allow the pass phrase
5305 to be included on either the command line (not recommended on
5306 OSes like Unix) or read from the environment. Update the
5307 manpages and fix a few bugs.
5310 *) Add a few manpages for some of the openssl commands.
5313 *) Fix the -revoke option in ca. It was freeing up memory twice,
5314 leaking and not finding already revoked certificates.
5317 *) Extensive changes to support certificate auxiliary information.
5318 This involves the use of X509_CERT_AUX structure and X509_AUX
5319 functions. An X509_AUX function such as PEM_read_X509_AUX()
5320 can still read in a certificate file in the usual way but it
5321 will also read in any additional "auxiliary information". By
5322 doing things this way a fair degree of compatibility can be
5323 retained: existing certificates can have this information added
5324 using the new 'x509' options.
5326 Current auxiliary information includes an "alias" and some trust
5327 settings. The trust settings will ultimately be used in enhanced
5328 certificate chain verification routines: currently a certificate
5329 can only be trusted if it is self signed and then it is trusted
5333 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5334 The problem was that one of the replacement routines had not been working
5335 since SSLeay releases. For now the offending routine has been replaced
5336 with non-optimised assembler. Even so, this now gives around 95%
5337 performance improvement for 1024 bit RSA signs.
5340 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5341 handling. Most clients have the effective key size in bits equal to
5342 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5343 A few however don't do this and instead use the size of the decrypted key
5344 to determine the RC2 key length and the AlgorithmIdentifier to determine
5345 the effective key length. In this case the effective key length can still
5346 be 40 bits but the key length can be 168 bits for example. This is fixed
5347 by manually forcing an RC2 key into the EVP_PKEY structure because the
5348 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5349 the key length and effective key length are equal.
5352 *) Add a bunch of functions that should simplify the creation of
5353 X509_NAME structures. Now you should be able to do:
5354 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5355 and have it automatically work out the correct field type and fill in
5356 the structures. The more adventurous can try:
5357 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5358 and it will (hopefully) work out the correct multibyte encoding.
5361 *) Change the 'req' utility to use the new field handling and multibyte
5362 copy routines. Before the DN field creation was handled in an ad hoc
5363 way in req, ca, and x509 which was rather broken and didn't support
5364 BMPStrings or UTF8Strings. Since some software doesn't implement
5365 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5366 using the dirstring_type option. See the new comment in the default
5367 openssl.cnf for more info.
5370 *) Make crypto/rand/md_rand.c more robust:
5371 - Assure unique random numbers after fork().
5372 - Make sure that concurrent threads access the global counter and
5373 md serializably so that we never lose entropy in them
5374 or use exactly the same state in multiple threads.
5375 Access to the large state is not always serializable because
5376 the additional locking could be a performance killer, and
5377 md should be large enough anyway.
5380 *) New file apps/app_rand.c with commonly needed functionality
5381 for handling the random seed file.
5383 Use the random seed file in some applications that previously did not:
5385 dsaparam -genkey (which also ignored its '-rand' option),
5388 x509 (when signing).
5389 Except on systems with /dev/urandom, it is crucial to have a random
5390 seed file at least for key creation, DSA signing, and for DH exchanges;
5391 for RSA signatures we could do without one.
5393 gendh and gendsa (unlike genrsa) used to read only the first byte
5394 of each file listed in the '-rand' option. The function as previously
5395 found in genrsa is now in app_rand.c and is used by all programs
5396 that support '-rand'.
5399 *) In RAND_write_file, use mode 0600 for creating files;
5400 don't just chmod when it may be too late.
5403 *) Report an error from X509_STORE_load_locations
5404 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5407 *) New function ASN1_mbstring_copy() this copies a string in either
5408 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5409 into an ASN1_STRING type. A mask of permissible types is passed
5410 and it chooses the "minimal" type to use or an error if not type
5414 *) Add function equivalents to the various macros in asn1.h. The old
5415 macros are retained with an M_ prefix. Code inside the library can
5416 use the M_ macros. External code (including the openssl utility)
5417 should *NOT* in order to be "shared library friendly".
5420 *) Add various functions that can check a certificate's extensions
5421 to see if it usable for various purposes such as SSL client,
5422 server or S/MIME and CAs of these types. This is currently
5423 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5424 verification. Also added a -purpose flag to x509 utility to
5425 print out all the purposes.
5428 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5432 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5433 for, obtain and decode and extension and obtain its critical flag.
5434 This allows all the necessary extension code to be handled in a
5435 single function call.
5438 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5439 platforms. See crypto/rc4/rc4_enc.c for further details.
5442 *) New -noout option to asn1parse. This causes no output to be produced
5443 its main use is when combined with -strparse and -out to extract data
5444 from a file (which may not be in ASN.1 format).
5447 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5448 when producing the local key id.
5449 [Richard Levitte <levitte@stacken.kth.se>]
5451 *) New option -dhparam in s_server. This allows a DH parameter file to be
5452 stated explicitly. If it is not stated then it tries the first server
5453 certificate file. The previous behaviour hard coded the filename
5457 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5458 a public key to be input or output. For example:
5459 openssl rsa -in key.pem -pubout -out pubkey.pem
5460 Also added necessary DSA public key functions to handle this.
5463 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5464 in the message. This was handled by allowing
5465 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5466 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5468 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5469 to the end of the strings whereas this didn't. This would cause problems
5470 if strings read with d2i_ASN1_bytes() were later modified.
5471 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5473 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5474 data and it contains EOF it will end up returning an error. This is
5475 caused by input 46 bytes long. The cause is due to the way base64
5476 BIOs find the start of base64 encoded data. They do this by trying a
5477 trial decode on each line until they find one that works. When they
5478 do a flag is set and it starts again knowing it can pass all the
5479 data directly through the decoder. Unfortunately it doesn't reset
5480 the context it uses. This means that if EOF is reached an attempt
5481 is made to pass two EOFs through the context and this causes the
5482 resulting error. This can also cause other problems as well. As is
5483 usual with these problems it takes *ages* to find and the fix is
5484 trivial: move one line.
5485 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5487 *) Ugly workaround to get s_client and s_server working under Windows. The
5488 old code wouldn't work because it needed to select() on sockets and the
5489 tty (for keypresses and to see if data could be written). Win32 only
5490 supports select() on sockets so we select() with a 1s timeout on the
5491 sockets and then see if any characters are waiting to be read, if none
5492 are present then we retry, we also assume we can always write data to
5493 the tty. This isn't nice because the code then blocks until we've
5494 received a complete line of data and it is effectively polling the
5495 keyboard at 1s intervals: however it's quite a bit better than not
5496 working at all :-) A dedicated Windows application might handle this
5497 with an event loop for example.
5500 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5501 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5502 will be called when RSA_sign() and RSA_verify() are used. This is useful
5503 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5504 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5505 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5506 This necessitated the support of an extra signature type NID_md5_sha1
5507 for SSL signatures and modifications to the SSL library to use it instead
5508 of calling RSA_public_decrypt() and RSA_private_encrypt().
5511 *) Add new -verify -CAfile and -CApath options to the crl program, these
5512 will lookup a CRL issuers certificate and verify the signature in a
5513 similar way to the verify program. Tidy up the crl program so it
5514 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5515 less strict. It will now permit CRL extensions even if it is not
5516 a V2 CRL: this will allow it to tolerate some broken CRLs.
5519 *) Initialize all non-automatic variables each time one of the openssl
5520 sub-programs is started (this is necessary as they may be started
5521 multiple times from the "OpenSSL>" prompt).
5522 [Lennart Bang, Bodo Moeller]
5524 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5525 removing all other RSA functionality (this is what NO_RSA does). This
5526 is so (for example) those in the US can disable those operations covered
5527 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5531 *) Non-copying interface to BIO pairs.
5532 (still largely untested)
5535 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5536 ASCII string. This was handled independently in various places before.
5539 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5540 UTF8 strings a character at a time.
5543 *) Use client_version from client hello to select the protocol
5544 (s23_srvr.c) and for RSA client key exchange verification
5545 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5548 *) Add various utility functions to handle SPKACs, these were previously
5549 handled by poking round in the structure internals. Added new function
5550 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5551 print, verify and generate SPKACs. Based on an original idea from
5552 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5555 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5558 *) Allow the config file extension section to be overwritten on the
5559 command line. Based on an original idea from Massimiliano Pala
5560 <madwolf@comune.modena.it>. The new option is called -extensions
5561 and can be applied to ca, req and x509. Also -reqexts to override
5562 the request extensions in req and -crlexts to override the crl extensions
5566 *) Add new feature to the SPKAC handling in ca. Now you can include
5567 the same field multiple times by preceding it by "XXXX." for example:
5570 this is the same syntax as used in the req config file.
5573 *) Allow certificate extensions to be added to certificate requests. These
5574 are specified in a 'req_extensions' option of the req section of the
5575 config file. They can be printed out with the -text option to req but
5576 are otherwise ignored at present.
5579 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5580 data read consists of only the final block it would not decrypted because
5581 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5582 A misplaced 'break' also meant the decrypted final block might not be
5583 copied until the next read.
5586 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5587 a few extra parameters to the DH structure: these will be useful if
5588 for example we want the value of 'q' or implement X9.42 DH.
5591 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5592 provides hooks that allow the default DSA functions or functions on a
5593 "per key" basis to be replaced. This allows hardware acceleration and
5594 hardware key storage to be handled without major modification to the
5595 library. Also added low level modexp hooks and CRYPTO_EX structure and
5596 associated functions.
5599 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5600 as "read only": it can't be written to and the buffer it points to will
5601 not be freed. Reading from a read only BIO is much more efficient than
5602 a normal memory BIO. This was added because there are several times when
5603 an area of memory needs to be read from a BIO. The previous method was
5604 to create a memory BIO and write the data to it, this results in two
5605 copies of the data and an O(n^2) reading algorithm. There is a new
5606 function BIO_new_mem_buf() which creates a read only memory BIO from
5607 an area of memory. Also modified the PKCS#7 routines to use read only
5611 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5612 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5613 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5614 but a retry condition occured while trying to read the rest.
5617 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5618 NID_pkcs7_encrypted by default: this was wrong since this should almost
5619 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5620 the encrypted data type: this is a more sensible place to put it and it
5621 allows the PKCS#12 code to be tidied up that duplicated this
5625 *) Changed obj_dat.pl script so it takes its input and output files on
5626 the command line. This should avoid shell escape redirection problems
5630 *) Initial support for certificate extension requests, these are included
5631 in things like Xenroll certificate requests. Included functions to allow
5632 extensions to be obtained and added.
5635 *) -crlf option to s_client and s_server for sending newlines as
5636 CRLF (as required by many protocols).
5639 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5641 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5642 [Ralf S. Engelschall]
5644 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5645 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5647 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5651 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5652 DH parameters/keys (q is lost during that conversion, but the resulting
5653 DH parameters contain its length).
5655 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5656 much faster than DH_generate_parameters (which creates parameters
5657 where p = 2*q + 1), and also the smaller q makes DH computations
5658 much more efficient (160-bit exponentiation instead of 1024-bit
5659 exponentiation); so this provides a convenient way to support DHE
5660 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5661 utter importance to use
5662 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5664 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5665 when such DH parameters are used, because otherwise small subgroup
5666 attacks may become possible!
5669 *) Avoid memory leak in i2d_DHparams.
5672 *) Allow the -k option to be used more than once in the enc program:
5673 this allows the same encrypted message to be read by multiple recipients.
5676 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5677 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5678 it will always use the numerical form of the OID, even if it has a short
5682 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5683 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5684 otherwise bn_mod_exp was called. In the case of hardware keys for example
5685 no private key components need be present and it might store extra data
5686 in the RSA structure, which cannot be accessed from bn_mod_exp.
5687 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5688 private key operations.
5691 *) Added support for SPARC Linux.
5694 *) pem_password_cb function type incompatibly changed from
5695 typedef int pem_password_cb(char *buf, int size, int rwflag);
5697 ....(char *buf, int size, int rwflag, void *userdata);
5698 so that applications can pass data to their callbacks:
5699 The PEM[_ASN1]_{read,write}... functions and macros now take an
5700 additional void * argument, which is just handed through whenever
5701 the password callback is called.
5702 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5704 New function SSL_CTX_set_default_passwd_cb_userdata.
5706 Compatibility note: As many C implementations push function arguments
5707 onto the stack in reverse order, the new library version is likely to
5708 interoperate with programs that have been compiled with the old
5709 pem_password_cb definition (PEM_whatever takes some data that
5710 happens to be on the stack as its last argument, and the callback
5711 just ignores this garbage); but there is no guarantee whatsoever that
5714 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5715 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5716 problems not only on Windows, but also on some Unix platforms.
5717 To avoid problematic command lines, these definitions are now in an
5718 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5719 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5722 *) MIPS III/IV assembler module is reimplemented.
5725 *) More DES library cleanups: remove references to srand/rand and
5726 delete an unused file.
5729 *) Add support for the the free Netwide assembler (NASM) under Win32,
5730 since not many people have MASM (ml) and it can be hard to obtain.
5731 This is currently experimental but it seems to work OK and pass all
5732 the tests. Check out INSTALL.W32 for info.
5735 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5736 without temporary keys kept an extra copy of the server key,
5737 and connections with temporary keys did not free everything in case
5741 *) New function RSA_check_key and new openssl rsa option -check
5742 for verifying the consistency of RSA keys.
5743 [Ulf Moeller, Bodo Moeller]
5745 *) Various changes to make Win32 compile work:
5746 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5747 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5748 comparison" warnings.
5749 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5752 *) Add a debugging option to PKCS#5 v2 key generation function: when
5753 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5754 derived keys are printed to stderr.
5757 *) Copy the flags in ASN1_STRING_dup().
5758 [Roman E. Pavlov <pre@mo.msk.ru>]
5760 *) The x509 application mishandled signing requests containing DSA
5761 keys when the signing key was also DSA and the parameters didn't match.
5763 It was supposed to omit the parameters when they matched the signing key:
5764 the verifying software was then supposed to automatically use the CA's
5765 parameters if they were absent from the end user certificate.
5767 Omitting parameters is no longer recommended. The test was also
5768 the wrong way round! This was probably due to unusual behaviour in
5769 EVP_cmp_parameters() which returns 1 if the parameters match.
5770 This meant that parameters were omitted when they *didn't* match and
5771 the certificate was useless. Certificates signed with 'ca' didn't have
5773 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5775 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5776 The interface is as follows:
5777 Applications can use
5778 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5779 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5780 "off" is now the default.
5781 The library internally uses
5782 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5783 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5784 to disable memory-checking temporarily.
5786 Some inconsistent states that previously were possible (and were
5787 even the default) are now avoided.
5789 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5790 with each memory chunk allocated; this is occasionally more helpful
5791 than just having a counter.
5793 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5795 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5799 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5800 which largely parallels "options", but is for changing API behaviour,
5801 whereas "options" are about protocol behaviour.
5802 Initial "mode" flags are:
5804 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5805 a single record has been written.
5806 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5807 retries use the same buffer location.
5808 (But all of the contents must be
5812 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5815 *) Fix problems with no-hmac etc.
5816 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5818 *) New functions RSA_get_default_method(), RSA_set_method() and
5819 RSA_get_method(). These allows replacement of RSA_METHODs without having
5820 to mess around with the internals of an RSA structure.
5823 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5824 Also really enable memory leak checks in openssl.c and in some
5826 [Chad C. Mulligan, Bodo Moeller]
5828 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5829 up the length of negative integers. This has now been simplified to just
5830 store the length when it is first determined and use it later, rather
5831 than trying to keep track of where data is copied and updating it to
5833 [Steve Henson, reported by Brien Wheeler
5834 <bwheeler@authentica-security.com>]
5836 *) Add a new function PKCS7_signatureVerify. This allows the verification
5837 of a PKCS#7 signature but with the signing certificate passed to the
5838 function itself. This contrasts with PKCS7_dataVerify which assumes the
5839 certificate is present in the PKCS#7 structure. This isn't always the
5840 case: certificates can be omitted from a PKCS#7 structure and be
5841 distributed by "out of band" means (such as a certificate database).
5844 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5845 function prototypes in pem.h, also change util/mkdef.pl to add the
5846 necessary function names.
5849 *) mk1mf.pl (used by Windows builds) did not properly read the
5850 options set by Configure in the top level Makefile, and Configure
5851 was not even able to write more than one option correctly.
5852 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5855 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5856 file to be loaded from a BIO or FILE pointer. The BIO version will
5857 for example allow memory BIOs to contain config info.
5860 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5861 Whoever hopes to achieve shared-library compatibility across versions
5862 must use this, not the compile-time macro.
5863 (Exercise 0.9.4: Which is the minimum library version required by
5865 Note: All this applies only to multi-threaded programs, others don't
5869 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5870 through a BIO pair triggered the default case, i.e.
5871 SSLerr(...,SSL_R_UNKNOWN_STATE).
5874 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5875 can use the SSL library even if none of the specific BIOs is
5879 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5880 for the encoded length.
5881 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5883 *) Add initial documentation of the X509V3 functions.
5886 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5887 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5888 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5889 secure PKCS#8 private key format with a high iteration count.
5892 *) Fix determination of Perl interpreter: A perl or perl5
5893 _directory_ in $PATH was also accepted as the interpreter.
5894 [Ralf S. Engelschall]
5896 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5897 wrong with it but it was very old and did things like calling
5898 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5902 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5903 to use the new extension code.
5906 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5907 with macros. This should make it easier to change their form, add extra
5908 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5912 *) Add to configuration table a new entry that can specify an alternative
5913 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5914 according to Mark Crispin <MRC@Panda.COM>.
5918 *) DES CBC did not update the IV. Weird.
5921 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5922 Changing the behaviour of the former might break existing programs --
5923 where IV updating is needed, des_ncbc_encrypt can be used.
5926 *) When bntest is run from "make test" it drives bc to check its
5927 calculations, as well as internally checking them. If an internal check
5928 fails, it needs to cause bc to give a non-zero result or make test carries
5929 on without noticing the failure. Fixed.
5932 *) DES library cleanups.
5935 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5936 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5937 ciphers. NOTE: although the key derivation function has been verified
5938 against some published test vectors it has not been extensively tested
5939 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5943 *) Instead of "mkdir -p", which is not fully portable, use new
5944 Perl script "util/mkdir-p.pl".
5947 *) Rewrite the way password based encryption (PBE) is handled. It used to
5948 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5949 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5950 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5951 the 'parameter' field of the AlgorithmIdentifier is passed to the
5952 underlying key generation function so it must do its own ASN1 parsing.
5953 This has also changed the EVP_PBE_CipherInit() function which now has a
5954 'parameter' argument instead of literal salt and iteration count values
5955 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5958 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5959 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5960 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5961 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5962 value was just used as a "magic string" and not used directly its
5963 value doesn't matter.
5966 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5970 *) "linux-sparc64" configuration (ultrapenguin).
5971 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5972 "linux-sparc" configuration.
5973 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5975 *) config now generates no-xxx options for missing ciphers.
5978 *) Support the EBCDIC character set (work in progress).
5979 File ebcdic.c not yet included because it has a different license.
5980 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5982 *) Support BS2000/OSD-POSIX.
5983 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5985 *) Make callbacks for key generation use void * instead of char *.
5988 *) Make S/MIME samples compile (not yet tested).
5991 *) Additional typesafe stacks.
5994 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5998 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6000 *) New configuration variant "sco5-gcc".
6002 *) Updated some demos.
6003 [Sean O Riordain, Wade Scholine]
6005 *) Add missing BIO_free at exit of pkcs12 application.
6008 *) Fix memory leak in conf.c.
6011 *) Updates for Win32 to assembler version of MD5.
6014 *) Set #! path to perl in apps/der_chop to where we found it
6015 instead of using a fixed path.
6018 *) SHA library changes for irix64-mips4-cc.
6021 *) Improvements for VMS support.
6025 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6027 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6028 This also avoids the problems with SC4.2 and unpatched SC5.
6029 [Andy Polyakov <appro@fy.chalmers.se>]
6031 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6032 These are required because of the typesafe stack would otherwise break
6033 existing code. If old code used a structure member which used to be STACK
6034 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6035 sk_num or sk_value it would produce an error because the num, data members
6036 are not present in STACK_OF. Now it just produces a warning. sk_set
6037 replaces the old method of assigning a value to sk_value
6038 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6039 that does this will no longer work (and should use sk_set instead) but
6040 this could be regarded as a "questionable" behaviour anyway.
6043 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6044 correctly handle encrypted S/MIME data.
6047 *) Change type of various DES function arguments from des_cblock
6048 (which means, in function argument declarations, pointer to char)
6049 to des_cblock * (meaning pointer to array with 8 char elements),
6050 which allows the compiler to do more typechecking; it was like
6051 that back in SSLeay, but with lots of ugly casts.
6053 Introduce new type const_des_cblock.
6056 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6057 problems: find RecipientInfo structure that matches recipient certificate
6058 and initialise the ASN1 structures properly based on passed cipher.
6061 *) Belatedly make the BN tests actually check the results.
6064 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6065 to and from BNs: it was completely broken. New compilation option
6066 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6067 key elements as negative integers.
6070 *) Reorganize and speed up MD5.
6071 [Andy Polyakov <appro@fy.chalmers.se>]
6074 [Richard Levitte <richard@levitte.org>]
6076 *) New option -out to asn1parse to allow the parsed structure to be
6077 output to a file. This is most useful when combined with the -strparse
6078 option to examine the output of things like OCTET STRINGS.
6081 *) Make SSL library a little more fool-proof by not requiring any longer
6082 that SSL_set_{accept,connect}_state be called before
6083 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6084 in many applications because usually everything *appeared* to work as
6085 intended anyway -- now it really works as intended).
6088 *) Move openssl.cnf out of lib/.
6091 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6092 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6093 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6094 [Ralf S. Engelschall]
6096 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6097 handle PKCS#7 enveloped data properly.
6098 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6100 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6101 copying pointers. The cert_st handling is changed by this in
6102 various ways (and thus what used to be known as ctx->default_cert
6103 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6104 any longer when s->cert does not give us what we need).
6105 ssl_cert_instantiate becomes obsolete by this change.
6106 As soon as we've got the new code right (possibly it already is?),
6107 we have solved a couple of bugs of the earlier code where s->cert
6108 was used as if it could not have been shared with other SSL structures.
6110 Note that using the SSL API in certain dirty ways now will result
6111 in different behaviour than observed with earlier library versions:
6112 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6113 does not influence s as it used to.
6115 In order to clean up things more thoroughly, inside SSL_SESSION
6116 we don't use CERT any longer, but a new structure SESS_CERT
6117 that holds per-session data (if available); currently, this is
6118 the peer's certificate chain and, for clients, the server's certificate
6119 and temporary key. CERT holds only those values that can have
6120 meaningful defaults in an SSL_CTX.
6123 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6124 from the internal representation. Various PKCS#7 fixes: remove some
6125 evil casts and set the enc_dig_alg field properly based on the signing
6129 *) Allow PKCS#12 password to be set from the command line or the
6130 environment. Let 'ca' get its config file name from the environment
6131 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6135 *) Allow certificate policies extension to use an IA5STRING for the
6136 organization field. This is contrary to the PKIX definition but
6137 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6141 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6142 without disallowing inline assembler and the like for non-pedantic builds.
6145 *) Support Borland C++ builder.
6146 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6151 *) SHA-1 cleanups and performance enhancements.
6152 [Andy Polyakov <appro@fy.chalmers.se>]
6154 *) Sparc v8plus assembler for the bignum library.
6155 [Andy Polyakov <appro@fy.chalmers.se>]
6157 *) Accept any -xxx and +xxx compiler options in Configure.
6160 *) Update HPUX configuration.
6163 *) Add missing sk_<type>_unshift() function to safestack.h
6164 [Ralf S. Engelschall]
6166 *) New function SSL_CTX_use_certificate_chain_file that sets the
6167 "extra_cert"s in addition to the certificate. (This makes sense
6168 only for "PEM" format files, as chains as a whole are not
6172 *) Support verify_depth from the SSL API.
6173 x509_vfy.c had what can be considered an off-by-one-error:
6174 Its depth (which was not part of the external interface)
6175 was actually counting the number of certificates in a chain;
6176 now it really counts the depth.
6179 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6180 instead of X509err, which often resulted in confusing error
6181 messages since the error codes are not globally unique
6182 (e.g. an alleged error in ssl3_accept when a certificate
6183 didn't match the private key).
6185 *) New function SSL_CTX_set_session_id_context that allows to set a default
6186 value (so that you don't need SSL_set_session_id_context for each
6187 connection using the SSL_CTX).
6190 *) OAEP decoding bug fix.
6193 *) Support INSTALL_PREFIX for package builders, as proposed by
6197 *) New Configure options "threads" and "no-threads". For systems
6198 where the proper compiler options are known (currently Solaris
6199 and Linux), "threads" is the default.
6202 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6205 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6206 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6207 such as /usr/local/bin.
6210 *) "make linux-shared" to build shared libraries.
6211 [Niels Poppe <niels@netbox.org>]
6213 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6216 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6217 extension adding in x509 utility.
6220 *) Remove NOPROTO sections and error code comments.
6223 *) Partial rewrite of the DEF file generator to now parse the ANSI
6227 *) New Configure options --prefix=DIR and --openssldir=DIR.
6230 *) Complete rewrite of the error code script(s). It is all now handled
6231 by one script at the top level which handles error code gathering,
6232 header rewriting and C source file generation. It should be much better
6233 than the old method: it now uses a modified version of Ulf's parser to
6234 read the ANSI prototypes in all header files (thus the old K&R definitions
6235 aren't needed for error creation any more) and do a better job of
6236 translating function codes into names. The old 'ASN1 error code imbedded
6237 in a comment' is no longer necessary and it doesn't use .err files which
6238 have now been deleted. Also the error code call doesn't have to appear all
6239 on one line (which resulted in some large lines...).
6242 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6245 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6246 0 (which usually indicates a closed connection), but continue reading.
6249 *) Fix some race conditions.
6252 *) Add support for CRL distribution points extension. Add Certificate
6253 Policies and CRL distribution points documentation.
6256 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6259 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6260 8 of keying material. Merlin has also confirmed interop with this fix
6261 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6262 [Merlin Hughes <merlin@baltimore.ie>]
6264 *) Fix lots of warnings.
6265 [Richard Levitte <levitte@stacken.kth.se>]
6267 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6268 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6269 [Richard Levitte <levitte@stacken.kth.se>]
6271 *) Fix problems with sizeof(long) == 8.
6272 [Andy Polyakov <appro@fy.chalmers.se>]
6274 *) Change functions to ANSI C.
6277 *) Fix typos in error codes.
6278 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6280 *) Remove defunct assembler files from Configure.
6283 *) SPARC v8 assembler BIGNUM implementation.
6284 [Andy Polyakov <appro@fy.chalmers.se>]
6286 *) Support for Certificate Policies extension: both print and set.
6287 Various additions to support the r2i method this uses.
6290 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6291 return a const string when you are expecting an allocated buffer.
6294 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6295 types DirectoryString and DisplayText.
6298 *) Add code to allow r2i extensions to access the configuration database,
6299 add an LHASH database driver and add several ctx helper functions.
6302 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6303 fail when they extended the size of a BIGNUM.
6306 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6307 support typesafe stack.
6310 *) Fix typo in SSL_[gs]et_options().
6311 [Nils Frostberg <nils@medcom.se>]
6313 *) Delete various functions and files that belonged to the (now obsolete)
6314 old X509V3 handling code.
6317 *) New Configure option "rsaref".
6320 *) Don't auto-generate pem.h.
6323 *) Introduce type-safe ASN.1 SETs.
6326 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6327 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6329 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6330 that links with OpenSSL (well at least cause lots of warnings), but fear
6331 not: the conversion is trivial, and it eliminates loads of evil casts. A
6332 few STACKed things have been converted already. Feel free to convert more.
6333 In the fullness of time, I'll do away with the STACK type altogether.
6336 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6337 specified in <certfile> by updating the entry in the index.txt file.
6338 This way one no longer has to edit the index.txt file manually for
6339 revoking a certificate. The -revoke option does the gory details now.
6340 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6342 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6343 `-text' option at all and this way the `-noout -text' combination was
6344 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6345 [Ralf S. Engelschall]
6347 *) Make sure a corresponding plain text error message exists for the
6348 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6349 verify callback function determined that a certificate was revoked.
6350 [Ralf S. Engelschall]
6352 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6353 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6354 all available cipers including rc5, which was forgotten until now.
6355 In order to let the testing shell script know which algorithms
6356 are available, a new (up to now undocumented) command
6357 "openssl list-cipher-commands" is used.
6360 *) Bugfix: s_client occasionally would sleep in select() when
6361 it should have checked SSL_pending() first.
6364 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6365 the raw DSA values prior to ASN.1 encoding.
6368 *) Tweaks to Configure
6369 [Niels Poppe <niels@netbox.org>]
6371 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6375 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6378 *) New config option to avoid instructions that are illegal on the 80386.
6379 The default code is faster, but requires at least a 486.
6382 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6383 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6384 same as SSL2_VERSION anyway.
6387 *) New "-showcerts" option for s_client.
6390 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6391 application. Various cleanups and fixes.
6394 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6395 modify error routines to work internally. Add error codes and PBE init
6396 to library startup routines.
6399 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6400 packing functions to asn1 and evp. Changed function names and error
6401 codes along the way.
6404 *) PKCS12 integration: and so it begins... First of several patches to
6405 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6406 objects to objects.h
6409 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6410 and display support for Thawte strong extranet extension.
6413 *) Add LinuxPPC support.
6414 [Jeff Dubrule <igor@pobox.org>]
6416 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6417 bn_div_words in alpha.s.
6418 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6420 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6421 OAEP isn't supported when OpenSSL is built with RSAref.
6422 [Ulf Moeller <ulf@fitug.de>]
6424 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6425 so they no longer are missing under -DNOPROTO.
6426 [Soren S. Jorvang <soren@t.dk>]
6429 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6431 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6432 doesn't work when the session is reused. Coming soon!
6435 *) Fix a security hole, that allows sessions to be reused in the wrong
6436 context thus bypassing client cert protection! All software that uses
6437 client certs and session caches in multiple contexts NEEDS PATCHING to
6438 allow session reuse! A fuller solution is in the works.
6439 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6441 *) Some more source tree cleanups (removed obsolete files
6442 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6443 permission on "config" script to be executable) and a fix for the INSTALL
6445 [Ulf Moeller <ulf@fitug.de>]
6447 *) Remove some legacy and erroneous uses of malloc, free instead of
6449 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6451 *) Make rsa_oaep_test return non-zero on error.
6452 [Ulf Moeller <ulf@fitug.de>]
6454 *) Add support for native Solaris shared libraries. Configure
6455 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6456 if someone would make that last step automatic.
6457 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6459 *) ctx_size was not built with the right compiler during "make links". Fixed.
6462 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6463 except NULL ciphers". This means the default cipher list will no longer
6464 enable NULL ciphers. They need to be specifically enabled e.g. with
6465 the string "DEFAULT:eNULL".
6468 *) Fix to RSA private encryption routines: if p < q then it would
6469 occasionally produce an invalid result. This will only happen with
6470 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6473 *) Be less restrictive and allow also `perl util/perlpath.pl
6474 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6475 because this way one can also use an interpreter named `perl5' (which is
6476 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6477 installed as `perl').
6478 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6480 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6481 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6483 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6484 advapi32.lib to Win32 build and change the pem test comparision
6485 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6486 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6487 and crypto/des/ede_cbcm_enc.c.
6490 *) DES quad checksum was broken on big-endian architectures. Fixed.
6493 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6494 Win32 test batch file so it (might) work again. The Win32 test batch file
6495 is horrible: I feel ill....
6498 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6499 in e_os.h. Audit of header files to check ANSI and non ANSI
6500 sections: 10 functions were absent from non ANSI section and not exported
6501 from Windows DLLs. Fixed up libeay.num for new functions.
6504 *) Make `openssl version' output lines consistent.
6505 [Ralf S. Engelschall]
6507 *) Fix Win32 symbol export lists for BIO functions: Added
6508 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6509 to ms/libeay{16,32}.def.
6510 [Ralf S. Engelschall]
6512 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6513 fine under Unix and passes some trivial tests I've now added. But the
6514 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6515 added to make sure no one expects that this stuff really works in the
6516 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6517 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6519 [Ralf S. Engelschall]
6521 *) Fix the generation of two part addresses in perl.
6522 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6524 *) Add config entry for Linux on MIPS.
6525 [John Tobey <jtobey@channel1.com>]
6527 *) Make links whenever Configure is run, unless we are on Windoze.
6530 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6531 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6535 *) Add a useful kludge to allow package maintainers to specify compiler and
6536 other platforms details on the command line without having to patch the
6537 Configure script everytime: One now can use ``perl Configure
6538 <id>:<details>'', i.e. platform ids are allowed to have details appended
6539 to them (seperated by colons). This is treated as there would be a static
6540 pre-configured entry in Configure's %table under key <id> with value
6541 <details> and ``perl Configure <id>'' is called. So, when you want to
6542 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6543 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6544 now, which overrides the FreeBSD-elf entry on-the-fly.
6545 [Ralf S. Engelschall]
6547 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6550 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6551 on the `perl Configure ...' command line. This way one can compile
6552 OpenSSL libraries with Position Independent Code (PIC) which is needed
6553 for linking it into DSOs.
6554 [Ralf S. Engelschall]
6556 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6560 *) Cleaned up the LICENSE document: The official contact for any license
6561 questions now is the OpenSSL core team under openssl-core@openssl.org.
6562 And add a paragraph about the dual-license situation to make sure people
6563 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6564 to the OpenSSL toolkit.
6565 [Ralf S. Engelschall]
6567 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6568 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6569 Additonally cleaned up the `make links' target: Remove unnecessary
6570 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6571 to speed processing and no longer clutter the display with confusing
6572 stuff. Instead only the actually done links are displayed.
6573 [Ralf S. Engelschall]
6575 *) Permit null encryption ciphersuites, used for authentication only. It used
6576 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6577 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6581 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6582 signed attributes when verifying signatures (this would break them),
6583 the detached data encoding was wrong and public keys obtained using
6584 X509_get_pubkey() weren't freed.
6587 *) Add text documentation for the BUFFER functions. Also added a work around
6588 to a Win95 console bug. This was triggered by the password read stuff: the
6589 last character typed gets carried over to the next fread(). If you were
6590 generating a new cert request using 'req' for example then the last
6591 character of the passphrase would be CR which would then enter the first
6595 *) Added the new `Includes OpenSSL Cryptography Software' button as
6596 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6597 button and can be used by applications based on OpenSSL to show the
6598 relationship to the OpenSSL project.
6599 [Ralf S. Engelschall]
6601 *) Remove confusing variables in function signatures in files
6602 ssl/ssl_lib.c and ssl/ssl.h.
6603 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6605 *) Don't install bss_file.c under PREFIX/include/
6606 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6608 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6609 functions that return function pointers and has support for NT specific
6610 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6611 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6612 unsigned to signed types: this was killing the Win32 compile.
6615 *) Add new certificate file to stack functions,
6616 SSL_add_dir_cert_subjects_to_stack() and
6617 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6618 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6619 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6620 This means that Apache-SSL and similar packages don't have to mess around
6621 to add as many CAs as they want to the preferred list.
6624 *) Experiment with doxygen documentation. Currently only partially applied to
6626 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6627 openssl.doxy as the configuration file.
6630 *) Get rid of remaining C++-style comments which strict C compilers hate.
6631 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6633 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6634 compiled in by default: it has problems with large keys.
6637 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6638 DH private keys and/or callback functions which directly correspond to
6639 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6640 is needed for applications which have to configure certificates on a
6641 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6643 For the RSA certificate situation is makes no difference, but
6644 for the DSA certificate situation this fixes the "no shared cipher"
6645 problem where the OpenSSL cipher selection procedure failed because the
6646 temporary keys were not overtaken from the context and the API provided
6647 no way to reconfigure them.
6648 The new functions now let applications reconfigure the stuff and they
6649 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6650 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6651 non-public-API function ssl_cert_instantiate() is used as a helper
6652 function and also to reduce code redundancy inside ssl_rsa.c.
6653 [Ralf S. Engelschall]
6655 *) Move s_server -dcert and -dkey options out of the undocumented feature
6656 area because they are useful for the DSA situation and should be
6657 recognized by the users.
6658 [Ralf S. Engelschall]
6660 *) Fix the cipher decision scheme for export ciphers: the export bits are
6661 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6662 SSL_EXP_MASK. So, the original variable has to be used instead of the
6663 already masked variable.
6664 [Richard Levitte <levitte@stacken.kth.se>]
6666 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6667 [Richard Levitte <levitte@stacken.kth.se>]
6669 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6670 from `int' to `unsigned int' because it's a length and initialized by
6671 EVP_DigestFinal() which expects an `unsigned int *'.
6672 [Richard Levitte <levitte@stacken.kth.se>]
6674 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6675 script. Instead use the usual Shell->Perl transition trick.
6676 [Ralf S. Engelschall]
6678 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6679 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6680 -noout -modulus' as it's already the case for `openssl rsa -noout
6681 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6682 currently the public key is printed (a decision which was already done by
6683 `openssl dsa -modulus' in the past) which serves a similar purpose.
6684 Additionally the NO_RSA no longer completely removes the whole -modulus
6685 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6687 [Ralf S. Engelschall]
6689 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6690 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6691 [Arne Ansper <arne@ats.cyber.ee>]
6693 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6694 to be added. Now both 'req' and 'ca' can use new objects defined in the
6698 *) Add cool BIO that does syslog (or event log on NT).
6699 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6701 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6702 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6703 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6704 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6707 *) Add preliminary config info for new extension code.
6710 *) Make RSA_NO_PADDING really use no padding.
6711 [Ulf Moeller <ulf@fitug.de>]
6713 *) Generate errors when private/public key check is done.
6716 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6717 for some CRL extensions and new objects added.
6720 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6721 key usage extension and fuller support for authority key id.
6724 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6725 padding method for RSA, which is recommended for new applications in PKCS
6726 #1 v2.0 (RFC 2437, October 1998).
6727 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6728 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6729 against Bleichbacher's attack on RSA.
6730 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6733 *) Updates to the new SSL compression code
6734 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6736 *) Fix so that the version number in the master secret, when passed
6737 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6738 (because the server will not accept higher), that the version number
6739 is 0x03,0x01, not 0x03,0x00
6740 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6742 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6743 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6744 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6747 *) Support for RAW extensions where an arbitrary extension can be
6748 created by including its DER encoding. See apps/openssl.cnf for
6752 *) Make sure latest Perl versions don't interpret some generated C array
6753 code as Perl array code in the crypto/err/err_genc.pl script.
6754 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6756 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6757 not many people have the assembler. Various Win32 compilation fixes and
6758 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6762 *) Modify configure script 'Configure' to automatically create crypto/date.h
6763 file under Win32 and also build pem.h from pem.org. New script
6764 util/mkfiles.pl to create the MINFO file on environments that can't do a
6765 'make files': perl util/mkfiles.pl >MINFO should work.
6768 *) Major rework of DES function declarations, in the pursuit of correctness
6769 and purity. As a result, many evil casts evaporated, and some weirdness,
6770 too. You may find this causes warnings in your code. Zapping your evil
6771 casts will probably fix them. Mostly.
6774 *) Fix for a typo in asn1.h. Bug fix to object creation script
6775 obj_dat.pl. It considered a zero in an object definition to mean
6776 "end of object": none of the objects in objects.h have any zeros
6777 so it wasn't spotted.
6778 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6780 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6781 Masking (CBCM). In the absence of test vectors, the best I have been able
6782 to do is check that the decrypt undoes the encrypt, so far. Send me test
6783 vectors if you have them.
6786 *) Correct calculation of key length for export ciphers (too much space was
6787 allocated for null ciphers). This has not been tested!
6790 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6791 message is now correct (it understands "crypto" and "ssl" on its
6792 command line). There is also now an "update" option. This will update
6793 the util/ssleay.num and util/libeay.num files with any new functions.
6795 perl util/mkdef.pl crypto ssl update
6796 it will update them.
6799 *) Overhauled the Perl interface (perl/*):
6800 - ported BN stuff to OpenSSL's different BN library
6801 - made the perl/ source tree CVS-aware
6802 - renamed the package from SSLeay to OpenSSL (the files still contain
6803 their history because I've copied them in the repository)
6804 - removed obsolete files (the test scripts will be replaced
6805 by better Test::Harness variants in the future)
6806 [Ralf S. Engelschall]
6808 *) First cut for a very conservative source tree cleanup:
6809 1. merge various obsolete readme texts into doc/ssleay.txt
6810 where we collect the old documents and readme texts.
6811 2. remove the first part of files where I'm already sure that we no
6812 longer need them because of three reasons: either they are just temporary
6813 files which were left by Eric or they are preserved original files where
6814 I've verified that the diff is also available in the CVS via "cvs diff
6815 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6816 the crypto/md/ stuff).
6817 [Ralf S. Engelschall]
6819 *) More extension code. Incomplete support for subject and issuer alt
6820 name, issuer and authority key id. Change the i2v function parameters
6821 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6822 what that's for :-) Fix to ASN1 macro which messed up
6823 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6826 *) Preliminary support for ENUMERATED type. This is largely copied from the
6830 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6831 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6833 *) Make sure `make rehash' target really finds the `openssl' program.
6834 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6836 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6837 like to hear about it if this slows down other processors.
6840 *) Add CygWin32 platform information to Configure script.
6841 [Alan Batie <batie@aahz.jf.intel.com>]
6843 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6844 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6846 *) New program nseq to manipulate netscape certificate sequences
6849 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6853 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6854 but the BN code had some problems that would cause failures when
6855 doing certificate verification and some other functions.
6856 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6858 *) Add ASN1 and PEM code to support netscape certificate sequences.
6861 *) Add ASN1 and PEM code to support netscape certificate sequences.
6864 *) Add several PKIX and private extended key usage OIDs.
6867 *) Modify the 'ca' program to handle the new extension code. Modify
6868 openssl.cnf for new extension format, add comments.
6871 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6872 and add a sample to openssl.cnf so req -x509 now adds appropriate
6876 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6877 error code, add initial support to X509_print() and x509 application.
6880 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6881 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6882 stuff is currently isolated and isn't even compiled yet.
6885 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6886 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6887 Removed the versions check from X509 routines when loading extensions:
6888 this allows certain broken certificates that don't set the version
6889 properly to be processed.
6892 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6893 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6894 can still be regenerated with "make depend".
6897 *) Spelling mistake in C version of CAST-128.
6898 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6900 *) Changes to the error generation code. The perl script err-code.pl
6901 now reads in the old error codes and retains the old numbers, only
6902 adding new ones if necessary. It also only changes the .err files if new
6903 codes are added. The makefiles have been modified to only insert errors
6904 when needed (to avoid needlessly modifying header files). This is done
6905 by only inserting errors if the .err file is newer than the auto generated
6906 C file. To rebuild all the error codes from scratch (the old behaviour)
6907 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6908 or delete all the .err files.
6911 *) CAST-128 was incorrectly implemented for short keys. The C version has
6912 been fixed, but is untested. The assembler versions are also fixed, but
6913 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6914 to regenerate it if needed.
6915 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6916 Hagino <itojun@kame.net>]
6918 *) File was opened incorrectly in randfile.c.
6919 [Ulf Möller <ulf@fitug.de>]
6921 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6922 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6923 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6924 al: it's just almost always a UTCTime. Note this patch adds new error
6925 codes so do a "make errors" if there are problems.
6928 *) Correct Linux 1 recognition in config.
6929 [Ulf Möller <ulf@fitug.de>]
6931 *) Remove pointless MD5 hash when using DSA keys in ca.
6932 [Anonymous <nobody@replay.com>]
6934 *) Generate an error if given an empty string as a cert directory. Also
6935 generate an error if handed NULL (previously returned 0 to indicate an
6936 error, but didn't set one).
6937 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6939 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6942 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6943 parameters. This was causing a warning which killed off the Win32 compile.
6946 *) Remove C++ style comments from crypto/bn/bn_local.h.
6947 [Neil Costigan <neil.costigan@celocom.com>]
6949 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6950 based on a text string, looking up short and long names and finally
6951 "dot" format. The "dot" format stuff didn't work. Added new function
6952 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6953 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6954 OID is not part of the table.
6957 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6958 X509_LOOKUP_by_alias().
6961 *) Sort openssl functions by name.
6964 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6965 encryption from sample DSA keys (in case anyone is interested the password
6969 *) Make _all_ *_free functions accept a NULL pointer.
6970 [Frans Heymans <fheymans@isaserver.be>]
6972 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6974 [Anonymous <nobody@replay.com>]
6976 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6977 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6979 *) Don't blow it for numeric -newkey arguments to apps/req.
6980 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6982 *) Temp key "for export" tests were wrong in s3_srvr.c.
6983 [Anonymous <nobody@replay.com>]
6985 *) Add prototype for temp key callback functions
6986 SSL_CTX_set_tmp_{rsa,dh}_callback().
6989 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6990 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6993 *) X509_name_add_entry() freed the wrong thing after an error.
6994 [Arne Ansper <arne@ats.cyber.ee>]
6996 *) rsa_eay.c would attempt to free a NULL context.
6997 [Arne Ansper <arne@ats.cyber.ee>]
6999 *) BIO_s_socket() had a broken should_retry() on Windoze.
7000 [Arne Ansper <arne@ats.cyber.ee>]
7002 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7003 [Arne Ansper <arne@ats.cyber.ee>]
7005 *) Make sure the already existing X509_STORE->depth variable is initialized
7006 in X509_STORE_new(), but document the fact that this variable is still
7007 unused in the certificate verification process.
7008 [Ralf S. Engelschall]
7010 *) Fix the various library and apps files to free up pkeys obtained from
7011 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7014 *) Fix reference counting in X509_PUBKEY_get(). This makes
7015 demos/maurice/example2.c work, amongst others, probably.
7016 [Steve Henson and Ben Laurie]
7018 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7019 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7020 are no longer created. This way we have a single and consistent command
7021 line interface `openssl <command>', similar to `cvs <command>'.
7022 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7024 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7025 BIT STRING wrapper always have zero unused bits.
7028 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7031 *) Make the top-level INSTALL documentation easier to understand.
7034 *) Makefiles updated to exit if an error occurs in a sub-directory
7035 make (including if user presses ^C) [Paul Sutton]
7037 *) Make Montgomery context stuff explicit in RSA data structure.
7040 *) Fix build order of pem and err to allow for generated pem.h.
7043 *) Fix renumbering bug in X509_NAME_delete_entry().
7046 *) Enhanced the err-ins.pl script so it makes the error library number
7047 global and can add a library name. This is needed for external ASN1 and
7048 other error libraries.
7051 *) Fixed sk_insert which never worked properly.
7054 *) Fix ASN1 macros so they can handle indefinite length construted
7055 EXPLICIT tags. Some non standard certificates use these: they can now
7059 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7060 into a single doc/ssleay.txt bundle. This way the information is still
7061 preserved but no longer messes up this directory. Now it's new room for
7062 the new set of documenation files.
7063 [Ralf S. Engelschall]
7065 *) SETs were incorrectly DER encoded. This was a major pain, because they
7066 shared code with SEQUENCEs, which aren't coded the same. This means that
7067 almost everything to do with SETs or SEQUENCEs has either changed name or
7068 number of arguments.
7069 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7071 *) Fix test data to work with the above.
7074 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7075 was already fixed by Eric for 0.9.1 it seems.
7076 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7078 *) Autodetect FreeBSD3.
7081 *) Fix various bugs in Configure. This affects the following platforms:
7085 unixware-2.0-pentium
7089 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7090 before they are needed.
7093 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7097 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7099 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7100 changed SSLeay to OpenSSL in version strings.
7101 [Ralf S. Engelschall]
7103 *) Some fixups to the top-level documents.
7106 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7107 because the symlink to include/ was missing.
7108 [Ralf S. Engelschall]
7110 *) Incorporated the popular no-RSA/DSA-only patches
7111 which allow to compile a RSA-free SSLeay.
7112 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7114 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7115 when "ssleay" is still not found.
7116 [Ralf S. Engelschall]
7118 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7119 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7121 *) Updated the README file.
7122 [Ralf S. Engelschall]
7124 *) Added various .cvsignore files in the CVS repository subdirs
7125 to make a "cvs update" really silent.
7126 [Ralf S. Engelschall]
7128 *) Recompiled the error-definition header files and added
7129 missing symbols to the Win32 linker tables.
7130 [Ralf S. Engelschall]
7132 *) Cleaned up the top-level documents;
7133 o new files: CHANGES and LICENSE
7134 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7135 o merged COPYRIGHT into LICENSE
7136 o removed obsolete TODO file
7137 o renamed MICROSOFT to INSTALL.W32
7138 [Ralf S. Engelschall]
7140 *) Removed dummy files from the 0.9.1b source tree:
7141 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7142 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7143 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7144 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7145 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7146 [Ralf S. Engelschall]
7148 *) Added various platform portability fixes.
7151 *) The Genesis of the OpenSSL rpject:
7152 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7153 Young and Tim J. Hudson created while they were working for C2Net until
7155 [The OpenSSL Project]
7158 Changes between 0.9.0b and 0.9.1b [not released]
7160 *) Updated a few CA certificates under certs/
7163 *) Changed some BIGNUM api stuff.
7166 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7167 DGUX x86, Linux Alpha, etc.
7170 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7171 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7175 *) Add -strparse option to asn1pars program which parses nested
7177 [Dr Stephen Henson <shenson@bigfoot.com>]
7179 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7182 *) DSA fix for "ca" program.
7185 *) Added "-genkey" option to "dsaparam" program.
7188 *) Added RIPE MD160 (rmd160) message digest.
7191 *) Added -a (all) option to "ssleay version" command.
7194 *) Added PLATFORM define which is the id given to Configure.
7197 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7200 *) Extended the ASN.1 parser routines.
7203 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7206 *) Added a BN_CTX to the BN library.
7209 *) Fixed the weak key values in DES library
7212 *) Changed API in EVP library for cipher aliases.
7215 *) Added support for RC2/64bit cipher.
7218 *) Converted the lhash library to the crypto/mem.c functions.
7221 *) Added more recognized ASN.1 object ids.
7224 *) Added more RSA padding checks for SSL/TLS.
7227 *) Added BIO proxy/filter functionality.
7230 *) Added extra_certs to SSL_CTX which can be used
7231 send extra CA certificates to the client in the CA cert chain sending
7232 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7235 *) Now Fortezza is denied in the authentication phase because
7236 this is key exchange mechanism is not supported by SSLeay at all.
7239 *) Additional PKCS1 checks.
7242 *) Support the string "TLSv1" for all TLS v1 ciphers.
7245 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7246 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7249 *) Fixed a few memory leaks.
7252 *) Fixed various code and comment typos.
7255 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7256 bytes sent in the client random.
7257 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob