5 Changes between 0.9.7c and 0.9.8 [xx XXX xxxx]
7 *) Add support for STORE in ENGINE.
10 *) Add the STORE type. The intention is to provide a common interface
11 to certificate and key stores, be they simple file-based stores, or
12 HSM-type store, or LDAP stores, or...
13 NOTE: The code is currently UNTESTED and isn't really used anywhere.
16 *) Add a generic structure called OPENSSL_ITEM. This can be used to
17 pass a list of arguments to any function as well as provide a way
18 for a function to pass data back to the caller.
21 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
22 works like BUF_strdup() but can be used to duplicate a portion of
23 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
27 *) Add the function sk_find_ex() which works like sk_find(), but will
28 return an index to an element even if an exact match couldn't be
29 found. The index is guaranteed to point at the element where the
30 searched-for key would be inserted to preserve sorting order.
33 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
34 takes an extra flags argument for optional functionality. Currently,
35 the following flags are defined:
37 OBJ_BSEARCH_VALUE_ON_NOMATCH
38 This one gets OBJ_bsearch_ex() to return a pointer to the first
39 element where the comparing function returns a negative or zero
42 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
43 This one gets OBJ_bsearch_ex() to return a pointer to the first
44 element where the comparing function returns zero. This is useful
45 if there are more than one element where the comparing function
49 *) Make it possible to create self-signed certificates with 'openssl ca'
50 in such a way that the self-signed certificate becomes part of the
51 CA database and uses the same mechanisms for serial number generation
52 as all other certificate signing. The new flag '-selfsign' enables
53 this functionality. Adapt CA.sh and CA.pl.in.
56 *) Add functionality to check the public key of a certificate request
57 against a given private. This is useful to check that a certificate
58 request can be signed by that key (self-signing).
61 *) Make it possible to have multiple active certificates with the same
62 subject in the CA index file. This is done only if the keyword
63 'unique_subject' is set to 'no' in the main CA section (default
64 if 'CA_default') of the configuration file. The value is saved
65 with the database itself in a separate index attribute file,
66 named like the index file with '.attr' appended to the name.
69 *) Generate muti valued AVAs using '+' notation in config files for
73 *) Support for nameConstraints certificate extension.
76 *) Support for policyConstraints certificate extension.
79 *) Support for policyMappings certificate extension.
82 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
83 ENGINE as defaults for all supported algorithms irrespective of
84 the 'flags' parameter. 'flags' is now honoured, so applications
85 should make sure they are passing it correctly.
88 *) Make sure the default DSA_METHOD implementation only uses its
89 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
90 and change its own handlers to be NULL so as to remove unnecessary
91 indirection. This lets alternative implementations fallback to the
92 default implementation more easily.
95 *) Support for directoryName in GeneralName related extensions
99 *) Make it possible to link applications using Makefile.shared.
100 Make that possible even when linking against static libraries!
103 *) Support for single pass processing for S/MIME signing. This now
104 means that S/MIME signing can be done from a pipe, in addition
105 cleartext signing (multipart/signed type) is effectively streaming
106 and the signed data does not need to be all held in memory.
108 This is done with a new flag PKCS7_STREAM. When this flag is set
109 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
110 is done after the data is output (and digests calculated) in
114 *) Add full support for -rpath/-R, both in shared libraries and
115 applications, at least on the platforms where it's known how
119 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
120 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
121 will now compute a table of multiples of the generator that
122 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
123 faster (notably in the case of a single point multiplication,
125 [Nils Larsch, Bodo Moeller]
127 *) IPv6 support for certificate extensions. The various extensions
128 which use the IP:a.b.c.d can now take IPv6 addresses using the
129 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
133 *) Added an ENGINE that implements RSA by performing private key
134 exponentiations with the GMP library. The conversions to and from
135 GMP's mpz_t format aren't optimised nor are any montgomery forms
136 cached, and on x86 it appears OpenSSL's own performance has caught up.
137 However there are likely to be other architectures where GMP could
138 provide a boost. This ENGINE is not built in by default, but it can be
139 specified at Configure time and should be accompanied by the necessary
140 linker additions, eg;
141 ./config -DOPENSSL_USE_GMP -lgmp
144 *) "openssl engine" will not display ENGINE/DSO load failure errors when
145 testing availability of engines with "-t" - the old behaviour is
146 produced by increasing the feature's verbosity with "-tt".
149 *) ECDSA routines: under certain error conditions uninitialized BN objects
150 could be freed. Solution: make sure initialization is performed early
151 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
155 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
156 and DH_METHOD (eg. by ENGINE implementations) to override the normal
157 software implementations. For DSA and DH, parameter generation can
158 also be overriden by providing the appropriate method callbacks.
161 *) Change the "progress" mechanism used in key-generation and
162 primality testing to functions that take a new BN_GENCB pointer in
163 place of callback/argument pairs. The new API functions have "_ex"
164 postfixes and the older functions are reimplemented as wrappers for
165 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
166 declarations of the old functions to help (graceful) attempts to
167 migrate to the new functions. Also, the new key-generation API
168 functions operate on a caller-supplied key-structure and return
169 success/failure rather than returning a key or NULL - this is to
170 help make "keygen" another member function of RSA_METHOD etc.
172 Example for using the new callback interface:
174 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
178 BN_GENCB_set(&my_cb, my_callback, my_arg);
180 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
181 /* For the meaning of a, b in calls to my_callback(), see the
182 * documentation of the function that calls the callback.
183 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
184 * my_callback should return 1 if it wants BN_is_prime_ex()
185 * to continue, or 0 to stop.
190 *) Change the ZLIB compression method to be stateful, and make it
191 available to TLS with the number defined in
192 draft-ietf-tls-compression-04.txt.
195 *) Add the ASN.1 structures and functions for CertificatePair, which
196 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
198 CertificatePair ::= SEQUENCE {
199 forward [0] Certificate OPTIONAL,
200 reverse [1] Certificate OPTIONAL,
201 -- at least one of the pair shall be present -- }
203 Also implement the PEM functions to read and write certificate
204 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
206 This needed to be defined, mostly for the sake of the LDAP
207 attribute crossCertificatePair, but may prove useful elsewhere as
211 *) Make it possible to inhibit symlinking of shared libraries in
212 Makefile.shared, for Cygwin's sake.
215 *) Extend the BIGNUM API by creating new macros that behave like
218 void BN_set_sign(BIGNUM *a, int neg);
219 int BN_get_sign(const BIGNUM *a);
221 and avoid the need to access 'a->neg' directly in applications.
222 [Nils Larsch <nla@trustcenter.de>]
224 *) Implement fast modular reduction for pseudo-Mersenne primes
225 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
226 EC_GROUP_new_curve_GFp() will now automatically use this
228 [Nils Larsch <nla@trustcenter.de>]
230 *) Add new lock type (CRYPTO_LOCK_BN).
233 *) Change the ENGINE framework to automatically load engines
234 dynamically from specific directories unless they could be
235 found to already be built in or loaded. Move all the
236 current engines except for the cryptodev one to a new
238 The engines in engines/ are built as shared libraries if
239 the "shared" options was given to ./Configure or ./config.
240 Otherwise, they are inserted in libcrypto.a.
241 /usr/local/ssl/engines is the default directory for dynamic
242 engines, but that can be overriden at configure time through
243 the usual use of --prefix and/or --openssldir, and at run
244 time with the environment variable OPENSSL_ENGINES.
245 [Geoff Thorpe and Richard Levitte]
247 *) Add Makefile.shared, a helper makefile to build shared
248 libraries. Addapt Makefile.org.
251 *) Add version info to Win32 DLLs.
252 [Peter 'Luna' Runestig" <peter@runestig.com>]
254 *) Add new 'medium level' PKCS#12 API. Certificates and keys
255 can be added using this API to created arbitrary PKCS#12
256 files while avoiding the low level API.
258 New options to PKCS12_create(), key or cert can be NULL and
259 will then be omitted from the output file. The encryption
260 algorithm NIDs can be set to -1 for no encryption, the mac
261 iteration count can be set to 0 to omit the mac.
263 Enhance pkcs12 utility by making the -nokeys and -nocerts
264 options work when creating a PKCS#12 file. New option -nomac
265 to omit the mac, NONE can be set for an encryption algorithm.
266 New code is modified to use the enhanced PKCS12_create()
267 instead of the low level API.
270 *) Extend ASN1 encoder to support indefinite length constructed
271 encoding. This can output sequences tags and octet strings in
272 this form. Modify pk7_asn1.c to support indefinite length
273 encoding. This is experimental and needs additional code to
274 be useful, such as an ASN1 bio and some enhanced streaming
277 Extend template encode functionality so that tagging is passed
278 down to the template encoder.
281 *) Let 'openssl req' fail if an argument to '-newkey' is not
282 recognized instead of using RSA as a default.
285 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
286 As these are not official, they are not included in "ALL";
287 the "ECCdraft" ciphersuite group alias can be used to select them.
288 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
290 *) Add ECDH engine support.
291 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
293 *) Add ECDH in new directory crypto/ecdh/.
294 [Douglas Stebila (Sun Microsystems Laboratories)]
296 *) Let BN_rand_range() abort with an error after 100 iterations
297 without success (which indicates a broken PRNG).
300 *) Change BN_mod_sqrt() so that it verifies that the input value
301 is really the square of the return value. (Previously,
302 BN_mod_sqrt would show GIGO behaviour.)
305 *) Add named elliptic curves over binary fields from X9.62, SECG,
306 and WAP/WTLS; add OIDs that were still missing.
308 [Sheueling Chang Shantz and Douglas Stebila
309 (Sun Microsystems Laboratories)]
311 *) Extend the EC library for elliptic curves over binary fields
312 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
315 EC_GF2m_simple_method
319 EC_GROUP_new_curve_GF2m
320 EC_GROUP_set_curve_GF2m
321 EC_GROUP_get_curve_GF2m
322 EC_POINT_set_affine_coordinates_GF2m
323 EC_POINT_get_affine_coordinates_GF2m
324 EC_POINT_set_compressed_coordinates_GF2m
326 Point compression for binary fields is disabled by default for
327 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
330 As binary polynomials are represented as BIGNUMs, various members
331 of the EC_GROUP and EC_POINT data structures can be shared
332 between the implementations for prime fields and binary fields;
333 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
334 are essentially identical to their ..._GFp counterparts.
335 (For simplicity, the '..._GFp' prefix has been dropped from
336 various internal method names.)
338 An internal 'field_div' method (similar to 'field_mul' and
339 'field_sqr') has been added; this is used only for binary fields.
341 [Sheueling Chang Shantz and Douglas Stebila
342 (Sun Microsystems Laboratories)]
344 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
345 through methods ('mul', 'precompute_mult').
347 The generic implementations (now internally called 'ec_wNAF_mul'
348 and 'ec_wNAF_precomputed_mult') remain the default if these
349 methods are undefined.
351 [Sheueling Chang Shantz and Douglas Stebila
352 (Sun Microsystems Laboratories)]
354 *) New function EC_GROUP_get_degree, which is defined through
355 EC_METHOD. For curves over prime fields, this returns the bit
356 length of the modulus.
358 [Sheueling Chang Shantz and Douglas Stebila
359 (Sun Microsystems Laboratories)]
361 *) New functions EC_GROUP_dup, EC_POINT_dup.
362 (These simply call ..._new and ..._copy).
364 [Sheueling Chang Shantz and Douglas Stebila
365 (Sun Microsystems Laboratories)]
367 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
368 Polynomials are represented as BIGNUMs (where the sign bit is not
369 used) in the following functions [macros]:
372 BN_GF2m_sub [= BN_GF2m_add]
373 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
374 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
375 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
377 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
378 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
379 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
380 BN_GF2m_cmp [= BN_ucmp]
382 (Note that only the 'mod' functions are actually for fields GF(2^m).
383 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
385 For some functions, an the irreducible polynomial defining a
386 field can be given as an 'unsigned int[]' with strictly
387 decreasing elements giving the indices of those bits that are set;
388 i.e., p[] represents the polynomial
389 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
391 p[0] > p[1] > ... > p[k] = 0.
392 This applies to the following functions:
397 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
398 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
401 BN_GF2m_mod_solve_quad_arr
405 Conversion can be performed by the following functions:
410 bntest.c has additional tests for binary polynomial arithmetic.
412 Two implementations for BN_GF2m_mod_div() are available.
413 The default algorithm simply uses BN_GF2m_mod_inv() and
414 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
415 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
416 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
418 [Sheueling Chang Shantz and Douglas Stebila
419 (Sun Microsystems Laboratories)]
421 *) Add new error code 'ERR_R_DISABLED' that can be used when some
422 functionality is disabled at compile-time.
423 [Douglas Stebila <douglas.stebila@sun.com>]
425 *) Change default behaviour of 'openssl asn1parse' so that more
426 information is visible when viewing, e.g., a certificate:
428 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
429 mode the content of non-printable OCTET STRINGs is output in a
430 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
431 avoid the appearance of a printable string.
432 [Nils Larsch <nla@trustcenter.de>]
434 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
436 EC_GROUP_set_asn1_flag()
437 EC_GROUP_get_asn1_flag()
438 EC_GROUP_set_point_conversion_form()
439 EC_GROUP_get_point_conversion_form()
440 These control ASN1 encoding details:
441 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
442 has been set to OPENSSL_EC_NAMED_CURVE.
443 - Points are encoded in uncompressed form by default; options for
444 asn1_for are as for point2oct, namely
445 POINT_CONVERSION_COMPRESSED
446 POINT_CONVERSION_UNCOMPRESSED
447 POINT_CONVERSION_HYBRID
449 Also add 'seed' and 'seed_len' members to EC_GROUP with access
453 EC_GROUP_get_seed_len()
454 This is used only for ASN1 purposes (so far).
455 [Nils Larsch <nla@trustcenter.de>]
457 *) Add 'field_type' member to EC_METHOD, which holds the NID
458 of the appropriate field type OID. The new function
459 EC_METHOD_get_field_type() returns this value.
460 [Nils Larsch <nla@trustcenter.de>]
467 providing useful interfaces to EC_POINT_point2oct() and
468 EC_POINT_oct2point().
469 [Nils Larsch <nla@trustcenter.de>]
471 *) Change internals of the EC library so that the functions
472 EC_GROUP_set_generator()
473 EC_GROUP_get_generator()
475 EC_GROUP_get_cofactor()
476 are implemented directly in crypto/ec/ec_lib.c and not dispatched
477 to methods, which would lead to unnecessary code duplication when
478 adding different types of curves.
479 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
481 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
482 arithmetic, and such that modified wNAFs are generated
483 (which avoid length expansion in many cases).
486 *) Add a function EC_GROUP_check_discriminant() (defined via
487 EC_METHOD) that verifies that the curve discriminant is non-zero.
489 Add a function EC_GROUP_check() that makes some sanity tests
490 on a EC_GROUP, its generator and order. This includes
491 EC_GROUP_check_discriminant().
492 [Nils Larsch <nla@trustcenter.de>]
494 *) Add ECDSA in new directory crypto/ecdsa/.
496 Add applications 'openssl ecparam' and 'openssl ecdsa'
497 (these are based on 'openssl dsaparam' and 'openssl dsa').
499 ECDSA support is also included in various other files across the
500 library. Most notably,
501 - 'openssl req' now has a '-newkey ecdsa:file' option;
502 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
503 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
504 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
505 them suitable for ECDSA where domain parameters must be
506 extracted before the specific public key;
507 - ECDSA engine support has been added.
508 [Nils Larsch <nla@trustcenter.de>]
510 *) Include some named elliptic curves, and add OIDs from X9.62,
511 SECG, and WAP/WTLS. Each curve can be obtained from the new
513 EC_GROUP_new_by_nid(),
514 and the list of available named curves can be obtained with
515 EC_get_builtin_curves().
516 Also add a 'curve_name' member to EC_GROUP objects, which can be
520 [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
522 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
523 was actually never needed) and in BN_mul(). The removal in BN_mul()
524 required a small change in bn_mul_part_recursive() and the addition
525 of the functions bn_cmp_part_words(), bn_sub_part_words() and
526 bn_add_part_words(), which do the same thing as bn_cmp_words(),
527 bn_sub_words() and bn_add_words() except they take arrays with
531 Changes between 0.9.7b and 0.9.7c [xx XXX 2003]
533 *) Change AES_cbc_encrypt() so it outputs exact multiple of
534 blocks during encryption.
537 *) Various fixes to base64 BIO and non blocking I/O. On write
538 flushes were not handled properly if the BIO retried. On read
539 data was not being buffered properly and had various logic bugs.
540 This also affects blocking I/O when the data being decoded is a
544 *) Various S/MIME bugfixes and compatibility changes:
545 output correct application/pkcs7 MIME type if
546 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
547 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
548 of files as .eml work). Correctly handle very long lines in MIME
552 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
554 *) Countermeasure against the Klima-Pokorny-Rosa extension of
555 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
556 a protocol version number mismatch like a decryption error
557 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
560 *) Turn on RSA blinding by default in the default implementation
561 to avoid a timing attack. Applications that don't want it can call
562 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
563 They would be ill-advised to do so in most cases.
564 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
566 *) Change RSA blinding code so that it works when the PRNG is not
567 seeded (in this case, the secret RSA exponent is abused as
568 an unpredictable seed -- if it is not unpredictable, there
569 is no point in blinding anyway). Make RSA blinding thread-safe
570 by remembering the creator's thread ID in rsa->blinding and
571 having all other threads use local one-time blinding factors
572 (this requires more computation than sharing rsa->blinding, but
573 avoids excessive locking; and if an RSA object is not shared
574 between threads, blinding will still be very fast).
577 yet to be integrated into this CVS branch:
578 - Geoff's ENGINE_set_default() fix
580 *) Target "mingw" now allows native Windows code to be generated in
581 the Cygwin environment as well as with the MinGW compiler.
584 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
586 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
587 via timing by performing a MAC computation even if incorrrect
588 block cipher padding has been found. This is a countermeasure
589 against active attacks where the attacker has to distinguish
590 between bad padding and a MAC verification error. (CAN-2003-0078)
592 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
593 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
594 Martin Vuagnoux (EPFL, Ilion)]
596 *) Make the no-err option work as intended. The intention with no-err
597 is not to have the whole error stack handling routines removed from
598 libcrypto, it's only intended to remove all the function name and
599 reason texts, thereby removing some of the footprint that may not
600 be interesting if those errors aren't displayed anyway.
602 NOTE: it's still possible for any application or module to have it's
603 own set of error texts inserted. The routines are there, just not
604 used by default when no-err is given.
607 *) Add support for FreeBSD on IA64.
608 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
610 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
611 Kerberos function mit_des_cbc_cksum(). Before this change,
612 the value returned by DES_cbc_cksum() was like the one from
613 mit_des_cbc_cksum(), except the bytes were swapped.
614 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
616 *) Allow an application to disable the automatic SSL chain building.
617 Before this a rather primitive chain build was always performed in
618 ssl3_output_cert_chain(): an application had no way to send the
619 correct chain if the automatic operation produced an incorrect result.
621 Now the chain builder is disabled if either:
623 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
625 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
627 The reasoning behind this is that an application would not want the
628 auto chain building to take place if extra chain certificates are
629 present and it might also want a means of sending no additional
630 certificates (for example the chain has two certificates and the
634 *) Add the possibility to build without the ENGINE framework.
635 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
637 *) Under Win32 gmtime() can return NULL: check return value in
638 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
641 *) DSA routines: under certain error conditions uninitialized BN objects
642 could be freed. Solution: make sure initialization is performed early
643 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
644 Nils Larsch <nla@trustcenter.de> via PR#459)
647 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
648 checked on reconnect on the client side, therefore session resumption
649 could still fail with a "ssl session id is different" error. This
650 behaviour is masked when SSL_OP_ALL is used due to
651 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
652 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
656 *) IA-32 assembler support enhancements: unified ELF targets, support
657 for SCO/Caldera platforms, fix for Cygwin shared build.
660 *) Add support for FreeBSD on sparc64. As a consequence, support for
661 FreeBSD on non-x86 processors is separate from x86 processors on
662 the config script, much like the NetBSD support.
663 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
665 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
667 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
668 code (06) was taken as the first octet of the session ID and the last
669 octet was ignored consequently. As a result SSLv2 client side session
670 caching could not have worked due to the session ID mismatch between
672 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
676 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
677 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
681 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
682 seems that in spite of existing for more than a year, many application
683 author have done nothing to provide the necessary callbacks, which
684 means that this particular engine will not work properly anywhere.
685 This is a very unfortunate situation which forces us, in the name
686 of usability, to give the hw_ncipher.c a static lock, which is part
688 NOTE: This is for the 0.9.7 series ONLY. This hack will never
689 appear in 0.9.8 or later. We EXPECT application authors to have
690 dealt properly with this when 0.9.8 is released (unless we actually
691 make such changes in the libcrypto locking code that changes will
692 have to be made anyway).
695 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
696 octets have been read, EOF or an error occurs. Without this change
697 some truncated ASN1 structures will not produce an error.
700 *) Disable Heimdal support, since it hasn't been fully implemented.
701 Still give the possibility to force the use of Heimdal, but with
702 warnings and a request that patches get sent to openssl-dev.
705 *) Add the VC-CE target, introduce the WINCE sysname, and add
706 INSTALL.WCE and appropriate conditionals to make it build.
707 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
709 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
710 cygssl-x.y.z.dll, where x, y and z are the major, minor and
711 edit numbers of the version.
712 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
714 *) Introduce safe string copy and catenation functions
715 (BUF_strlcpy() and BUF_strlcat()).
716 [Ben Laurie (CHATS) and Richard Levitte]
718 *) Avoid using fixed-size buffers for one-line DNs.
721 *) Add BUF_MEM_grow_clean() to avoid information leakage when
722 resizing buffers containing secrets, and use where appropriate.
725 *) Avoid using fixed size buffers for configuration file location.
728 *) Avoid filename truncation for various CA files.
731 *) Use sizeof in preference to magic numbers.
734 *) Avoid filename truncation in cert requests.
737 *) Add assertions to check for (supposedly impossible) buffer
741 *) Don't cache truncated DNS entries in the local cache (this could
742 potentially lead to a spoofing attack).
745 *) Fix various buffers to be large enough for hex/decimal
746 representations in a platform independent manner.
749 *) Add CRYPTO_realloc_clean() to avoid information leakage when
750 resizing buffers containing secrets, and use where appropriate.
753 *) Add BIO_indent() to avoid much slightly worrying code to do
757 *) Convert sprintf()/BIO_puts() to BIO_printf().
760 *) buffer_gets() could terminate with the buffer only half
764 *) Add assertions to prevent user-supplied crypto functions from
765 overflowing internal buffers by having large block sizes, etc.
768 *) New OPENSSL_assert() macro (similar to assert(), but enabled
772 *) Eliminate unused copy of key in RC4.
775 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
778 *) Fix off-by-one error in EGD path.
781 *) If RANDFILE path is too long, ignore instead of truncating.
784 *) Eliminate unused and incorrectly sized X.509 structure
788 *) Eliminate unused and dangerous function knumber().
791 *) Eliminate unused and dangerous structure, KSSL_ERR.
794 *) Protect against overlong session ID context length in an encoded
795 session object. Since these are local, this does not appear to be
799 *) Change from security patch (see 0.9.6e below) that did not affect
800 the 0.9.6 release series:
802 Remote buffer overflow in SSL3 protocol - an attacker could
803 supply an oversized master key in Kerberos-enabled versions.
807 *) Change the SSL kerb5 codes to match RFC 2712.
810 *) Make -nameopt work fully for req and add -reqopt switch.
811 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
813 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
814 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
816 *) Make sure tests can be performed even if the corresponding algorithms
817 have been removed entirely. This was also the last step to make
818 OpenSSL compilable with DJGPP under all reasonable conditions.
819 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
821 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
822 to allow version independent disabling of normally unselected ciphers,
823 which may be activated as a side-effect of selecting a single cipher.
825 (E.g., cipher list string "RSA" enables ciphersuites that are left
826 out of "ALL" because they do not provide symmetric encryption.
827 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
828 [Lutz Jaenicke, Bodo Moeller]
830 *) Add appropriate support for separate platform-dependent build
831 directories. The recommended way to make a platform-dependent
832 build directory is the following (tested on Linux), maybe with
835 # Place yourself outside of the OpenSSL source tree. In
836 # this example, the environment variable OPENSSL_SOURCE
837 # is assumed to contain the absolute OpenSSL source directory.
838 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
839 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
840 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
841 mkdir -p `dirname $F`
842 ln -s $OPENSSL_SOURCE/$F $F
845 To be absolutely sure not to disturb the source tree, a "make clean"
846 is a good thing. If it isn't successfull, don't worry about it,
847 it probably means the source directory is very clean.
850 *) Make sure any ENGINE control commands make local copies of string
851 pointers passed to them whenever necessary. Otherwise it is possible
852 the caller may have overwritten (or deallocated) the original string
853 data when a later ENGINE operation tries to use the stored values.
854 [Götz Babin-Ebell <babinebell@trustcenter.de>]
856 *) Improve diagnostics in file reading and command-line digests.
857 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
859 *) Add AES modes CFB and OFB to the object database. Correct an
860 error in AES-CFB decryption.
863 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
864 allows existing EVP_CIPHER_CTX structures to be reused after
865 calling EVP_*Final(). This behaviour is used by encryption
866 BIOs and some applications. This has the side effect that
867 applications must explicitly clean up cipher contexts with
868 EVP_CIPHER_CTX_cleanup() or they will leak memory.
871 *) Check the values of dna and dnb in bn_mul_recursive before calling
872 bn_mul_comba (a non zero value means the a or b arrays do not contain
873 n2 elements) and fallback to bn_mul_normal if either is not zero.
876 *) Fix escaping of non-ASCII characters when using the -subj option
877 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
880 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
881 form for "surname", serialNumber has no short form.
882 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
883 therefore remove "mail" short name for "internet 7".
884 The OID for unique identifiers in X509 certificates is
885 x500UniqueIdentifier, not uniqueIdentifier.
886 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
889 *) Add an "init" command to the ENGINE config module and auto initialize
890 ENGINEs. Without any "init" command the ENGINE will be initialized
891 after all ctrl commands have been executed on it. If init=1 the
892 ENGINE is initailized at that point (ctrls before that point are run
893 on the uninitialized ENGINE and after on the initialized one). If
894 init=0 then the ENGINE will not be iniatialized at all.
897 *) Fix the 'app_verify_callback' interface so that the user-defined
898 argument is actually passed to the callback: In the
899 SSL_CTX_set_cert_verify_callback() prototype, the callback
900 declaration has been changed from
903 int (*cb)(X509_STORE_CTX *,void *);
904 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
905 i=s->ctx->app_verify_callback(&ctx)
906 has been changed into
907 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
909 To update applications using SSL_CTX_set_cert_verify_callback(),
910 a dummy argument can be added to their callback functions.
911 [D. K. Smetters <smetters@parc.xerox.com>]
913 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
914 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
916 *) Add and OPENSSL_LOAD_CONF define which will cause
917 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
918 This allows older applications to transparently support certain
919 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
920 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
921 load the config file and OPENSSL_add_all_algorithms_conf() which will
922 always load it have also been added.
925 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
926 Adjust NIDs and EVP layer.
927 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
929 *) Config modules support in openssl utility.
931 Most commands now load modules from the config file,
932 though in a few (such as version) this isn't done
933 because it couldn't be used for anything.
935 In the case of ca and req the config file used is
936 the same as the utility itself: that is the -config
937 command line option can be used to specify an
941 *) Move default behaviour from OPENSSL_config(). If appname is NULL
942 use "openssl_conf" if filename is NULL use default openssl config file.
945 *) Add an argument to OPENSSL_config() to allow the use of an alternative
946 config section name. Add a new flag to tolerate a missing config file
947 and move code to CONF_modules_load_file().
950 *) Support for crypto accelerator cards from Accelerated Encryption
951 Processing, www.aep.ie. (Use engine 'aep')
952 The support was copied from 0.9.6c [engine] and adapted/corrected
953 to work with the new engine framework.
954 [AEP Inc. and Richard Levitte]
956 *) Support for SureWare crypto accelerator cards from Baltimore
957 Technologies. (Use engine 'sureware')
958 The support was copied from 0.9.6c [engine] and adapted
959 to work with the new engine framework.
962 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
963 make the newer ENGINE framework commands for the CHIL engine work.
964 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
966 *) Make it possible to produce shared libraries on ReliantUNIX.
967 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
969 *) Add the configuration target debug-linux-ppro.
970 Make 'openssl rsa' use the general key loading routines
971 implemented in apps.c, and make those routines able to
972 handle the key format FORMAT_NETSCAPE and the variant
974 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
976 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
977 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
979 *) Add -keyform to rsautl, and document -engine.
980 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
982 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
983 BIO_R_NO_SUCH_FILE error code rather than the generic
984 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
989 ERR_peek_last_error_line
990 ERR_peek_last_error_line_data.
994 ERR_peek_error_line_data,
995 but report on the latest error recorded rather than the first one
996 still in the error queue.
997 [Ben Laurie, Bodo Moeller]
999 *) default_algorithms option in ENGINE config module. This allows things
1001 default_algorithms = ALL
1002 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1005 *) Prelminary ENGINE config module.
1008 *) New experimental application configuration code.
1011 *) Change the AES code to follow the same name structure as all other
1012 symmetric ciphers, and behave the same way. Move everything to
1013 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1014 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1016 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1017 [Ben Laurie and Theo de Raadt]
1019 *) Add option to output public keys in req command.
1020 [Massimiliano Pala madwolf@openca.org]
1022 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1023 (up to about 10% better than before for P-192 and P-224).
1026 *) New functions/macros
1028 SSL_CTX_set_msg_callback(ctx, cb)
1029 SSL_CTX_set_msg_callback_arg(ctx, arg)
1030 SSL_set_msg_callback(ssl, cb)
1031 SSL_set_msg_callback_arg(ssl, arg)
1033 to request calling a callback function
1035 void cb(int write_p, int version, int content_type,
1036 const void *buf, size_t len, SSL *ssl, void *arg)
1038 whenever a protocol message has been completely received
1039 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1040 protocol version according to which the SSL library interprets
1041 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1042 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1043 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1044 specification (change_cipher_spec(20), alert(21), handshake(22)).
1045 'buf' and 'len' point to the actual message, 'ssl' to the
1046 SSL object, and 'arg' is the application-defined value set by
1047 SSL[_CTX]_set_msg_callback_arg().
1049 'openssl s_client' and 'openssl s_server' have new '-msg' options
1050 to enable a callback that displays all protocol messages.
1053 *) Change the shared library support so shared libraries are built as
1054 soon as the corresponding static library is finished, and thereby get
1055 openssl and the test programs linked against the shared library.
1056 This still only happens when the keyword "shard" has been given to
1057 the configuration scripts.
1059 NOTE: shared library support is still an experimental thing, and
1060 backward binary compatibility is still not guaranteed.
1061 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1063 *) Add support for Subject Information Access extension.
1064 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1066 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1067 additional bytes when new memory had to be allocated, not just
1068 when reusing an existing buffer.
1071 *) New command line and configuration option 'utf8' for the req command.
1072 This allows field values to be specified as UTF8 strings.
1075 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1076 runs for the former and machine-readable output for the latter.
1079 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1080 of the e-mail address in the DN (i.e., it will go into a certificate
1081 extension only). The new configuration file option 'email_in_dn = no'
1082 has the same effect.
1083 [Massimiliano Pala madwolf@openca.org]
1085 *) Change all functions with names starting with des_ to be starting
1086 with DES_ instead. Add wrappers that are compatible with libdes,
1087 but are named _ossl_old_des_*. Finally, add macros that map the
1088 des_* symbols to the corresponding _ossl_old_des_* if libdes
1089 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1090 desired, the des_* symbols will be mapped to DES_*, with one
1093 Since we provide two compatibility mappings, the user needs to
1094 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1095 compatibility is desired. The default (i.e., when that macro
1096 isn't defined) is OpenSSL 0.9.6c compatibility.
1098 There are also macros that enable and disable the support of old
1099 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1100 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1101 are defined, the default will apply: to support the old des routines.
1103 In either case, one must include openssl/des.h to get the correct
1104 definitions. Do not try to just include openssl/des_old.h, that
1107 NOTE: This is a major break of an old API into a new one. Software
1108 authors are encouraged to switch to the DES_ style functions. Some
1109 time in the future, des_old.h and the libdes compatibility functions
1110 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1111 default), and then completely removed.
1114 *) Test for certificates which contain unsupported critical extensions.
1115 If such a certificate is found during a verify operation it is
1116 rejected by default: this behaviour can be overridden by either
1117 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1118 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1119 X509_supported_extension() has also been added which returns 1 if a
1120 particular extension is supported.
1123 *) Modify the behaviour of EVP cipher functions in similar way to digests
1124 to retain compatibility with existing code.
1127 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1128 compatibility with existing code. In particular the 'ctx' parameter does
1129 not have to be to be initialized before the call to EVP_DigestInit() and
1130 it is tidied up after a call to EVP_DigestFinal(). New function
1131 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1132 EVP_MD_CTX_copy() changed to not require the destination to be
1133 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1134 requires the destination to be valid.
1136 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1137 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1140 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1141 so that complete 'Handshake' protocol structures are kept in memory
1142 instead of overwriting 'msg_type' and 'length' with 'body' data.
1145 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1146 [Massimo Santin via Richard Levitte]
1148 *) Major restructuring to the underlying ENGINE code. This includes
1149 reduction of linker bloat, separation of pure "ENGINE" manipulation
1150 (initialisation, etc) from functionality dealing with implementations
1151 of specific crypto iterfaces. This change also introduces integrated
1152 support for symmetric ciphers and digest implementations - so ENGINEs
1153 can now accelerate these by providing EVP_CIPHER and EVP_MD
1154 implementations of their own. This is detailed in crypto/engine/README
1155 as it couldn't be adequately described here. However, there are a few
1156 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1157 were changed in the original introduction of ENGINE code have now
1158 reverted back - the hooking from this code to ENGINE is now a good
1159 deal more passive and at run-time, operations deal directly with
1160 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1161 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1162 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1163 they were not being used by the framework as there is no concept of a
1164 BIGNUM_METHOD and they could not be generalised to the new
1165 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1166 ENGINE_cpy() has been removed as it cannot be consistently defined in
1170 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1173 *) Change mkdef.pl to sort symbols that get the same entry number,
1174 and make sure the automatically generated functions ERR_load_*
1175 become part of libeay.num as well.
1178 *) New function SSL_renegotiate_pending(). This returns true once
1179 renegotiation has been requested (either SSL_renegotiate() call
1180 or HelloRequest/ClientHello receveived from the peer) and becomes
1181 false once a handshake has been completed.
1182 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1183 sends a HelloRequest, but does not ensure that a handshake takes
1184 place. SSL_renegotiate_pending() is useful for checking if the
1185 client has followed the request.)
1188 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1189 By default, clients may request session resumption even during
1190 renegotiation (if session ID contexts permit); with this option,
1191 session resumption is possible only in the first handshake.
1193 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1194 more bits available for options that should not be part of
1195 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1198 *) Add some demos for certificate and certificate request creation.
1201 *) Make maximum certificate chain size accepted from the peer application
1202 settable (SSL*_get/set_max_cert_list()), as proposed by
1203 "Douglas E. Engert" <deengert@anl.gov>.
1206 *) Add support for shared libraries for Unixware-7
1207 (Boyd Lynn Gerber <gerberb@zenez.com>).
1210 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1211 be done prior to destruction. Use this to unload error strings from
1212 ENGINEs that load their own error strings. NB: This adds two new API
1213 functions to "get" and "set" this destroy handler in an ENGINE.
1216 *) Alter all existing ENGINE implementations (except "openssl" and
1217 "openbsd") to dynamically instantiate their own error strings. This
1218 makes them more flexible to be built both as statically-linked ENGINEs
1219 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1220 Also, add stub code to each that makes building them as self-contained
1221 shared-libraries easier (see README.ENGINE).
1224 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1225 implementations into applications that are completely implemented in
1226 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1227 commands that can be used to configure what shared-library to load and
1228 to control aspects of the way it is handled. Also, made an update to
1229 the README.ENGINE file that brings its information up-to-date and
1230 provides some information and instructions on the "dynamic" ENGINE
1231 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1234 *) Make it possible to unload ranges of ERR strings with a new
1235 "ERR_unload_strings" function.
1238 *) Add a copy() function to EVP_MD.
1241 *) Make EVP_MD routines take a context pointer instead of just the
1242 md_data void pointer.
1245 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1246 that the digest can only process a single chunk of data
1247 (typically because it is provided by a piece of
1248 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1249 is only going to provide a single chunk of data, and hence the
1250 framework needn't accumulate the data for oneshot drivers.
1253 *) As with "ERR", make it possible to replace the underlying "ex_data"
1254 functions. This change also alters the storage and management of global
1255 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1256 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1257 index counters. The API functions that use this state have been changed
1258 to take a "class_index" rather than pointers to the class's local STACK
1259 and counter, and there is now an API function to dynamically create new
1260 classes. This centralisation allows us to (a) plug a lot of the
1261 thread-safety problems that existed, and (b) makes it possible to clean
1262 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1263 such data would previously have always leaked in application code and
1264 workarounds were in place to make the memory debugging turn a blind eye
1265 to it. Application code that doesn't use this new function will still
1266 leak as before, but their memory debugging output will announce it now
1267 rather than letting it slide.
1269 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1270 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1271 has a return value to indicate success or failure.
1274 *) Make it possible to replace the underlying "ERR" functions such that the
1275 global state (2 LHASH tables and 2 locks) is only used by the "default"
1276 implementation. This change also adds two functions to "get" and "set"
1277 the implementation prior to it being automatically set the first time
1278 any other ERR function takes place. Ie. an application can call "get",
1279 pass the return value to a module it has just loaded, and that module
1280 can call its own "set" function using that value. This means the
1281 module's "ERR" operations will use (and modify) the error state in the
1282 application and not in its own statically linked copy of OpenSSL code.
1285 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1286 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1287 the operation, and provides a more encapsulated way for external code
1288 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1289 to use these functions rather than manually incrementing the counts.
1291 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1294 *) Add EVP test program.
1297 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1300 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1301 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1302 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1303 These allow a CRL to be built without having to access X509_CRL fields
1304 directly. Modify 'ca' application to use new functions.
1307 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1308 bug workarounds. Rollback attack detection is a security feature.
1309 The problem will only arise on OpenSSL servers when TLSv1 is not
1310 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1311 Software authors not wanting to support TLSv1 will have special reasons
1312 for their choice and can explicitly enable this option.
1313 [Bodo Moeller, Lutz Jaenicke]
1315 *) Rationalise EVP so it can be extended: don't include a union of
1316 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1317 (similar to those existing for EVP_CIPHER_CTX).
1322 EVP_MD_CTX_init(&md); /* new function call */
1323 EVP_DigestInit(&md, EVP_sha1());
1324 EVP_DigestUpdate(&md, in, len);
1325 EVP_DigestFinal(&md, out, NULL);
1326 EVP_MD_CTX_cleanup(&md); /* new function call */
1330 *) Make DES key schedule conform to the usual scheme, as well as
1331 correcting its structure. This means that calls to DES functions
1332 now have to pass a pointer to a des_key_schedule instead of a
1333 plain des_key_schedule (which was actually always a pointer
1336 des_key_schedule ks;
1338 des_set_key_checked(..., &ks);
1339 des_ncbc_encrypt(..., &ks, ...);
1341 (Note that a later change renames 'des_...' into 'DES_...'.)
1344 *) Initial reduction of linker bloat: the use of some functions, such as
1345 PEM causes large amounts of unused functions to be linked in due to
1346 poor organisation. For example pem_all.c contains every PEM function
1347 which has a knock on effect of linking in large amounts of (unused)
1348 ASN1 code. Grouping together similar functions and splitting unrelated
1349 functions prevents this.
1352 *) Cleanup of EVP macros.
1355 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1356 correct _ecb suffix.
1359 *) Add initial OCSP responder support to ocsp application. The
1360 revocation information is handled using the text based index
1361 use by the ca application. The responder can either handle
1362 requests generated internally, supplied in files (for example
1363 via a CGI script) or using an internal minimal server.
1366 *) Add configuration choices to get zlib compression for TLS.
1369 *) Changes to Kerberos SSL for RFC 2712 compliance:
1370 1. Implemented real KerberosWrapper, instead of just using
1371 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1372 2. Implemented optional authenticator field of KerberosWrapper.
1374 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1375 and authenticator structs; see crypto/krb5/.
1377 Generalized Kerberos calls to support multiple Kerberos libraries.
1378 [Vern Staats <staatsvr@asc.hpc.mil>,
1379 Jeffrey Altman <jaltman@columbia.edu>
1380 via Richard Levitte]
1382 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1383 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1384 values for each of the key sizes rather than having just
1385 parameters (and 'speed' generating keys each time).
1388 *) Speed up EVP routines.
1391 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1392 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1393 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1394 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1396 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1397 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1398 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1401 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1403 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1406 *) Added the OS2-EMX target.
1407 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1409 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1410 to support NCONF routines in extension code. New function CONF_set_nconf()
1411 to allow functions which take an NCONF to also handle the old LHASH
1412 structure: this means that the old CONF compatible routines can be
1413 retained (in particular wrt extensions) without having to duplicate the
1414 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1417 *) Enhance the general user interface with mechanisms for inner control
1418 and with possibilities to have yes/no kind of prompts.
1421 *) Change all calls to low level digest routines in the library and
1422 applications to use EVP. Add missing calls to HMAC_cleanup() and
1423 don't assume HMAC_CTX can be copied using memcpy().
1424 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1426 *) Add the possibility to control engines through control names but with
1427 arbitrary arguments instead of just a string.
1428 Change the key loaders to take a UI_METHOD instead of a callback
1429 function pointer. NOTE: this breaks binary compatibility with earlier
1430 versions of OpenSSL [engine].
1431 Adapt the nCipher code for these new conditions and add a card insertion
1435 *) Enhance the general user interface with mechanisms to better support
1436 dialog box interfaces, application-defined prompts, the possibility
1437 to use defaults (for example default passwords from somewhere else)
1438 and interrupts/cancellations.
1441 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1442 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1445 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1446 tidy up some unnecessarily weird code in 'sk_new()').
1447 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1449 *) Change the key loading routines for ENGINEs to use the same kind
1450 callback (pem_password_cb) as all other routines that need this
1454 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1455 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1456 than this minimum value is recommended.
1459 *) New random seeder for OpenVMS, using the system process statistics
1460 that are easily reachable.
1463 *) Windows apparently can't transparently handle global
1464 variables defined in DLLs. Initialisations such as:
1466 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1468 wont compile. This is used by the any applications that need to
1469 declare their own ASN1 modules. This was fixed by adding the option
1470 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1471 needed for static libraries under Win32.
1474 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1475 setting of purpose and trust fields. New X509_STORE trust and
1476 purpose functions and tidy up setting in other SSL functions.
1479 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1480 structure. These are inherited by X509_STORE_CTX when it is
1481 initialised. This allows various defaults to be set in the
1482 X509_STORE structure (such as flags for CRL checking and custom
1483 purpose or trust settings) for functions which only use X509_STORE_CTX
1484 internally such as S/MIME.
1486 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1487 trust settings if they are not set in X509_STORE. This allows X509_STORE
1488 purposes and trust (in S/MIME for example) to override any set by default.
1490 Add command line options for CRL checking to smime, s_client and s_server
1494 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1495 are set then the CRL is looked up in the X509_STORE structure and
1496 its validity and signature checked, then if the certificate is found
1497 in the CRL the verify fails with a revoked error.
1499 Various new CRL related callbacks added to X509_STORE_CTX structure.
1501 Command line options added to 'verify' application to support this.
1503 This needs some additional work, such as being able to handle multiple
1504 CRLs with different times, extension based lookup (rather than just
1505 by subject name) and ultimately more complete V2 CRL extension
1509 *) Add a general user interface API (crypto/ui/). This is designed
1510 to replace things like des_read_password and friends (backward
1511 compatibility functions using this new API are provided).
1512 The purpose is to remove prompting functions from the DES code
1513 section as well as provide for prompting through dialog boxes in
1514 a window system and the like.
1517 *) Add "ex_data" support to ENGINE so implementations can add state at a
1518 per-structure level rather than having to store it globally.
1521 *) Make it possible for ENGINE structures to be copied when retrieved by
1522 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1523 This causes the "original" ENGINE structure to act like a template,
1524 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1525 operational state can be localised to each ENGINE structure, despite the
1526 fact they all share the same "methods". New ENGINE structures returned in
1527 this case have no functional references and the return value is the single
1528 structural reference. This matches the single structural reference returned
1529 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1533 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1534 needs to match any other type at all we need to manually clear the
1538 *) Changes to the "openssl engine" utility to include;
1539 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1540 about an ENGINE's available control commands.
1541 - executing control commands from command line arguments using the
1542 '-pre' and '-post' switches. '-post' is only used if '-t' is
1543 specified and the ENGINE is successfully initialised. The syntax for
1544 the individual commands are colon-separated, for example;
1545 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1548 *) New dynamic control command support for ENGINEs. ENGINEs can now
1549 declare their own commands (numbers), names (strings), descriptions,
1550 and input types for run-time discovery by calling applications. A
1551 subset of these commands are implicitly classed as "executable"
1552 depending on their input type, and only these can be invoked through
1553 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1554 can be based on user input, config files, etc). The distinction is
1555 that "executable" commands cannot return anything other than a boolean
1556 result and can only support numeric or string input, whereas some
1557 discoverable commands may only be for direct use through
1558 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1559 pointers, or other custom uses. The "executable" commands are to
1560 support parameterisations of ENGINE behaviour that can be
1561 unambiguously defined by ENGINEs and used consistently across any
1562 OpenSSL-based application. Commands have been added to all the
1563 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1564 control over shared-library paths without source code alterations.
1567 *) Changed all ENGINE implementations to dynamically allocate their
1568 ENGINEs rather than declaring them statically. Apart from this being
1569 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1570 this also allows the implementations to compile without using the
1571 internal engine_int.h header.
1574 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1575 'const' value. Any code that should be able to modify a RAND_METHOD
1576 should already have non-const pointers to it (ie. they should only
1577 modify their own ones).
1580 *) Made a variety of little tweaks to the ENGINE code.
1581 - "atalla" and "ubsec" string definitions were moved from header files
1582 to C code. "nuron" string definitions were placed in variables
1583 rather than hard-coded - allowing parameterisation of these values
1584 later on via ctrl() commands.
1585 - Removed unused "#if 0"'d code.
1586 - Fixed engine list iteration code so it uses ENGINE_free() to release
1587 structural references.
1588 - Constified the RAND_METHOD element of ENGINE structures.
1589 - Constified various get/set functions as appropriate and added
1590 missing functions (including a catch-all ENGINE_cpy that duplicates
1591 all ENGINE values onto a new ENGINE except reference counts/state).
1592 - Removed NULL parameter checks in get/set functions. Setting a method
1593 or function to NULL is a way of cancelling out a previously set
1594 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1595 and doesn't justify the extra error symbols and code.
1596 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1597 flags from engine_int.h to engine.h.
1598 - Changed prototypes for ENGINE handler functions (init(), finish(),
1599 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1602 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1603 to the algorithm using long division. The binary algorithm can be
1604 used only if the modulus is odd. On 32-bit systems, it is faster
1605 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1606 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1607 up to 450 bits. In 64-bit environments, the binary algorithm
1608 appears to be advantageous for much longer moduli; here we use it
1609 for moduli up to 2048 bits.
1612 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1613 could not support the combine flag in choice fields.
1616 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1617 extensions from a certificate request to the certificate.
1620 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1621 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1622 file: this allows the display of the certificate about to be
1623 signed to be customised, to allow certain fields to be included
1624 or excluded and extension details. The old system didn't display
1625 multicharacter strings properly, omitted fields not in the policy
1626 and couldn't display additional details such as extensions.
1629 *) Function EC_POINTs_mul for multiple scalar multiplication
1630 of an arbitrary number of elliptic curve points
1631 \sum scalars[i]*points[i],
1632 optionally including the generator defined for the EC_GROUP:
1633 scalar*generator + \sum scalars[i]*points[i].
1635 EC_POINT_mul is a simple wrapper function for the typical case
1636 that the point list has just one item (besides the optional
1640 *) First EC_METHODs for curves over GF(p):
1642 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1643 operations and provides various method functions that can also
1644 operate with faster implementations of modular arithmetic.
1646 EC_GFp_mont_method() reuses most functions that are part of
1647 EC_GFp_simple_method, but uses Montgomery arithmetic.
1649 [Bodo Moeller; point addition and point doubling
1650 implementation directly derived from source code provided by
1651 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1653 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1654 crypto/ec/ec_lib.c):
1656 Curves are EC_GROUP objects (with an optional group generator)
1657 based on EC_METHODs that are built into the library.
1659 Points are EC_POINT objects based on EC_GROUP objects.
1661 Most of the framework would be able to handle curves over arbitrary
1662 finite fields, but as there are no obvious types for fields other
1663 than GF(p), some functions are limited to that for now.
1666 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1667 that the file contains a complete HTTP response.
1670 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1671 change the def and num file printf format specifier from "%-40sXXX"
1672 to "%-39s XXX". The latter will always guarantee a space after the
1673 field while the former will cause them to run together if the field
1674 is 40 of more characters long.
1677 *) Constify the cipher and digest 'method' functions and structures
1678 and modify related functions to take constant EVP_MD and EVP_CIPHER
1682 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1683 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1686 *) Modify EVP_Digest*() routines so they now return values. Although the
1687 internal software routines can never fail additional hardware versions
1691 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1693 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1694 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1697 ERR_R_NESTED_ASN1_ERROR
1699 ERR_R_MISSING_ASN1_EOS
1700 were 4 .. 9, conflicting with
1701 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1703 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1704 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1706 Add new error code 'ERR_R_INTERNAL_ERROR'.
1709 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1713 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1714 sets the subject name for a new request or supersedes the
1715 subject name in a given request. Formats that can be parsed are
1716 'CN=Some Name, OU=myOU, C=IT'
1718 'CN=Some Name/OU=myOU/C=IT'.
1720 Add options '-batch' and '-verbose' to 'openssl req'.
1721 [Massimiliano Pala <madwolf@hackmasters.net>]
1723 *) Introduce the possibility to access global variables through
1724 functions on platform were that's the best way to handle exporting
1725 global variables in shared libraries. To enable this functionality,
1726 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1727 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1728 is normally done by Configure or something similar).
1730 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1731 in the source file (foo.c) like this:
1733 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1734 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1736 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1737 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1739 OPENSSL_DECLARE_GLOBAL(int,foo);
1740 #define foo OPENSSL_GLOBAL_REF(foo)
1741 OPENSSL_DECLARE_GLOBAL(double,bar);
1742 #define bar OPENSSL_GLOBAL_REF(bar)
1744 The #defines are very important, and therefore so is including the
1745 header file everywhere where the defined globals are used.
1747 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1748 of ASN.1 items, but that structure is a bit different.
1750 The largest change is in util/mkdef.pl which has been enhanced with
1751 better and easier to understand logic to choose which symbols should
1752 go into the Windows .def files as well as a number of fixes and code
1753 cleanup (among others, algorithm keywords are now sorted
1754 lexicographically to avoid constant rewrites).
1757 *) In BN_div() keep a copy of the sign of 'num' before writing the
1758 result to 'rm' because if rm==num the value will be overwritten
1759 and produce the wrong result if 'num' is negative: this caused
1760 problems with BN_mod() and BN_nnmod().
1763 *) Function OCSP_request_verify(). This checks the signature on an
1764 OCSP request and verifies the signer certificate. The signer
1765 certificate is just checked for a generic purpose and OCSP request
1769 *) Add OCSP_check_validity() function to check the validity of OCSP
1770 responses. OCSP responses are prepared in real time and may only
1771 be a few seconds old. Simply checking that the current time lies
1772 between thisUpdate and nextUpdate max reject otherwise valid responses
1773 caused by either OCSP responder or client clock inaccuracy. Instead
1774 we allow thisUpdate and nextUpdate to fall within a certain period of
1775 the current time. The age of the response can also optionally be
1776 checked. Two new options -validity_period and -status_age added to
1780 *) If signature or public key algorithm is unrecognized print out its
1781 OID rather that just UNKNOWN.
1784 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1785 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1786 ID to be generated from the issuer certificate alone which can then be
1787 passed to OCSP_id_issuer_cmp().
1790 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1791 ASN1 modules to export functions returning ASN1_ITEM pointers
1792 instead of the ASN1_ITEM structures themselves. This adds several
1793 new macros which allow the underlying ASN1 function/structure to
1794 be accessed transparently. As a result code should not use ASN1_ITEM
1795 references directly (such as &X509_it) but instead use the relevant
1796 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1797 use of the new ASN1 code on platforms where exporting structures
1798 is problematical (for example in shared libraries) but exporting
1799 functions returning pointers to structures is not.
1802 *) Add support for overriding the generation of SSL/TLS session IDs.
1803 These callbacks can be registered either in an SSL_CTX or per SSL.
1804 The purpose of this is to allow applications to control, if they wish,
1805 the arbitrary values chosen for use as session IDs, particularly as it
1806 can be useful for session caching in multiple-server environments. A
1807 command-line switch for testing this (and any client code that wishes
1808 to use such a feature) has been added to "s_server".
1809 [Geoff Thorpe, Lutz Jaenicke]
1811 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1812 of the form '#if defined(...) || defined(...) || ...' and
1813 '#if !defined(...) && !defined(...) && ...'. This also avoids
1814 the growing number of special cases it was previously handling.
1817 *) Make all configuration macros available for application by making
1818 sure they are available in opensslconf.h, by giving them names starting
1819 with "OPENSSL_" to avoid conflicts with other packages and by making
1820 sure e_os2.h will cover all platform-specific cases together with
1822 Additionally, it is now possible to define configuration/platform-
1823 specific names (called "system identities"). In the C code, these
1824 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1825 macro with the name beginning with "OPENSSL_SYS_", which is determined
1826 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1830 *) New option -set_serial to 'req' and 'x509' this allows the serial
1831 number to use to be specified on the command line. Previously self
1832 signed certificates were hard coded with serial number 0 and the
1833 CA options of 'x509' had to use a serial number in a file which was
1837 *) New options to 'ca' utility to support V2 CRL entry extensions.
1838 Currently CRL reason, invalidity date and hold instruction are
1839 supported. Add new CRL extensions to V3 code and some new objects.
1842 *) New function EVP_CIPHER_CTX_set_padding() this is used to
1843 disable standard block padding (aka PKCS#5 padding) in the EVP
1844 API, which was previously mandatory. This means that the data is
1845 not padded in any way and so the total length much be a multiple
1846 of the block size, otherwise an error occurs.
1849 *) Initial (incomplete) OCSP SSL support.
1852 *) New function OCSP_parse_url(). This splits up a URL into its host,
1853 port and path components: primarily to parse OCSP URLs. New -url
1854 option to ocsp utility.
1857 *) New nonce behavior. The return value of OCSP_check_nonce() now
1858 reflects the various checks performed. Applications can decide
1859 whether to tolerate certain situations such as an absent nonce
1860 in a response when one was present in a request: the ocsp application
1861 just prints out a warning. New function OCSP_add1_basic_nonce()
1862 this is to allow responders to include a nonce in a response even if
1863 the request is nonce-less.
1866 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1867 skipped when using openssl x509 multiple times on a single input file,
1868 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1871 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1872 set string type: to handle setting ASN1_TIME structures. Fix ca
1873 utility to correctly initialize revocation date of CRLs.
1876 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1877 the clients preferred ciphersuites and rather use its own preferences.
1878 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1879 Internet Explorer by ensuring unchanged hash method during stepup.
1880 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1883 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1884 to aes and add a new 'exist' option to print out symbols that don't
1888 *) Additional options to ocsp utility to allow flags to be set and
1889 additional certificates supplied.
1892 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1893 OCSP client a number of certificate to only verify the response
1897 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1898 handle the new API. Currently only ECB, CBC modes supported. Add new
1901 Add TLS AES ciphersuites as described in RFC3268, "Advanced
1902 Encryption Standard (AES) Ciphersuites for Transport Layer
1903 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
1904 not enabled by default and were not part of the "ALL" ciphersuite
1905 alias because they were not yet official; they could be
1906 explicitly requested by specifying the "AESdraft" ciphersuite
1907 group alias. In the final release of OpenSSL 0.9.7, the group
1908 alias is called "AES" and is part of "ALL".)
1909 [Ben Laurie, Steve Henson, Bodo Moeller]
1911 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1912 request to response.
1915 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1916 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1917 extract information from a certificate request. OCSP_response_create()
1918 creates a response and optionally adds a basic response structure.
1919 OCSP_basic_add1_status() adds a complete single response to a basic
1920 response and returns the OCSP_SINGLERESP structure just added (to allow
1921 extensions to be included for example). OCSP_basic_add1_cert() adds a
1922 certificate to a basic response and OCSP_basic_sign() signs a basic
1923 response with various flags. New helper functions ASN1_TIME_check()
1924 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1925 (converts ASN1_TIME to GeneralizedTime).
1928 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1929 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1930 structure from a certificate. X509_pubkey_digest() digests the public_key
1931 contents: this is used in various key identifiers.
1934 *) Make sk_sort() tolerate a NULL argument.
1935 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1937 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1938 passed by the function are trusted implicitly. If any of them signed the
1939 response then it is assumed to be valid and is not verified.
1942 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1943 to data. This was previously part of the PKCS7 ASN1 code. This
1944 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1945 [Steve Henson, reported by Kenneth R. Robinette
1946 <support@securenetterm.com>]
1948 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1949 routines: without these tracing memory leaks is very painful.
1950 Fix leaks in PKCS12 and PKCS7 routines.
1953 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1954 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1955 effectively meant GeneralizedTime would never be used. Now it
1956 is initialised to -1 but X509_time_adj() now has to check the value
1957 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1958 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1959 [Steve Henson, reported by Kenneth R. Robinette
1960 <support@securenetterm.com>]
1962 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1963 result in a zero length in the ASN1_INTEGER structure which was
1964 not consistent with the structure when d2i_ASN1_INTEGER() was used
1965 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1966 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1967 where it did not print out a minus for negative ASN1_INTEGER.
1970 *) Add summary printout to ocsp utility. The various functions which
1971 convert status values to strings have been renamed to:
1972 OCSP_response_status_str(), OCSP_cert_status_str() and
1973 OCSP_crl_reason_str() and are no longer static. New options
1974 to verify nonce values and to disable verification. OCSP response
1975 printout format cleaned up.
1978 *) Add additional OCSP certificate checks. These are those specified
1979 in RFC2560. This consists of two separate checks: the CA of the
1980 certificate being checked must either be the OCSP signer certificate
1981 or the issuer of the OCSP signer certificate. In the latter case the
1982 OCSP signer certificate must contain the OCSP signing extended key
1983 usage. This check is performed by attempting to match the OCSP
1984 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1985 in the OCSP_CERTID structures of the response.
1988 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1989 and related routines. This uses the standard OpenSSL certificate
1990 verify routines to perform initial checks (just CA validity) and
1991 to obtain the certificate chain. Then additional checks will be
1992 performed on the chain. Currently the root CA is checked to see
1993 if it is explicitly trusted for OCSP signing. This is used to set
1994 a root CA as a global signing root: that is any certificate that
1995 chains to that CA is an acceptable OCSP signing certificate.
1998 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1999 extensions from a separate configuration file.
2000 As when reading extensions from the main configuration file,
2001 the '-extensions ...' option may be used for specifying the
2003 [Massimiliano Pala <madwolf@comune.modena.it>]
2005 *) New OCSP utility. Allows OCSP requests to be generated or
2006 read. The request can be sent to a responder and the output
2007 parsed, outputed or printed in text form. Not complete yet:
2008 still needs to check the OCSP response validity.
2011 *) New subcommands for 'openssl ca':
2012 'openssl ca -status <serial>' prints the status of the cert with
2013 the given serial number (according to the index file).
2014 'openssl ca -updatedb' updates the expiry status of certificates
2016 [Massimiliano Pala <madwolf@comune.modena.it>]
2018 *) New '-newreq-nodes' command option to CA.pl. This is like
2019 '-newreq', but calls 'openssl req' with the '-nodes' option
2020 so that the resulting key is not encrypted.
2021 [Damien Miller <djm@mindrot.org>]
2023 *) New configuration for the GNU Hurd.
2024 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2026 *) Initial code to implement OCSP basic response verify. This
2027 is currently incomplete. Currently just finds the signer's
2028 certificate and verifies the signature on the response.
2031 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2032 value of OPENSSLDIR. This is available via the new '-d' option
2033 to 'openssl version', and is also included in 'openssl version -a'.
2036 *) Allowing defining memory allocation callbacks that will be given
2037 file name and line number information in additional arguments
2038 (a const char* and an int). The basic functionality remains, as
2039 well as the original possibility to just replace malloc(),
2040 realloc() and free() by functions that do not know about these
2041 additional arguments. To register and find out the current
2042 settings for extended allocation functions, the following
2043 functions are provided:
2045 CRYPTO_set_mem_ex_functions
2046 CRYPTO_set_locked_mem_ex_functions
2047 CRYPTO_get_mem_ex_functions
2048 CRYPTO_get_locked_mem_ex_functions
2050 These work the same way as CRYPTO_set_mem_functions and friends.
2051 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2052 extended allocation function is enabled.
2053 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2054 a conventional allocation function is enabled.
2055 [Richard Levitte, Bodo Moeller]
2057 *) Finish off removing the remaining LHASH function pointer casts.
2058 There should no longer be any prototype-casting required when using
2059 the LHASH abstraction, and any casts that remain are "bugs". See
2060 the callback types and macros at the head of lhash.h for details
2061 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2064 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2065 If /dev/[u]random devices are not available or do not return enough
2066 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2068 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2069 /etc/entropy will be queried once each in this sequence, quering stops
2070 when enough entropy was collected without querying more sockets.
2073 *) Change the Unix RAND_poll() variant to be able to poll several
2074 random devices, as specified by DEVRANDOM, until a sufficient amount
2075 of data has been collected. We spend at most 10 ms on each file
2076 (select timeout) and read in non-blocking mode. DEVRANDOM now
2077 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2078 (previously it was just the string "/dev/urandom"), so on typical
2079 platforms the 10 ms delay will never occur.
2080 Also separate out the Unix variant to its own file, rand_unix.c.
2081 For VMS, there's a currently-empty rand_vms.c.
2084 *) Move OCSP client related routines to ocsp_cl.c. These
2085 provide utility functions which an application needing
2086 to issue a request to an OCSP responder and analyse the
2087 response will typically need: as opposed to those which an
2088 OCSP responder itself would need which will be added later.
2090 OCSP_request_sign() signs an OCSP request with an API similar
2091 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2092 response. OCSP_response_get1_basic() extracts basic response
2093 from response. OCSP_resp_find_status(): finds and extracts status
2094 information from an OCSP_CERTID structure (which will be created
2095 when the request structure is built). These are built from lower
2096 level functions which work on OCSP_SINGLERESP structures but
2097 wont normally be used unless the application wishes to examine
2098 extensions in the OCSP response for example.
2100 Replace nonce routines with a pair of functions.
2101 OCSP_request_add1_nonce() adds a nonce value and optionally
2102 generates a random value. OCSP_check_nonce() checks the
2103 validity of the nonce in an OCSP response.
2106 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2107 This doesn't copy the supplied OCSP_CERTID and avoids the
2108 need to free up the newly created id. Change return type
2109 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2110 This can then be used to add extensions to the request.
2111 Deleted OCSP_request_new(), since most of its functionality
2112 is now in OCSP_REQUEST_new() (and the case insensitive name
2113 clash) apart from the ability to set the request name which
2114 will be added elsewhere.
2117 *) Update OCSP API. Remove obsolete extensions argument from
2118 various functions. Extensions are now handled using the new
2119 OCSP extension code. New simple OCSP HTTP function which
2120 can be used to send requests and parse the response.
2123 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2124 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2125 uses the special reorder version of SET OF to sort the attributes
2126 and reorder them to match the encoded order. This resolves a long
2127 standing problem: a verify on a PKCS7 structure just after signing
2128 it used to fail because the attribute order did not match the
2129 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2130 it uses the received order. This is necessary to tolerate some broken
2131 software that does not order SET OF. This is handled by encoding
2132 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2133 to produce the required SET OF.
2136 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2137 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2138 files to get correct declarations of the ASN.1 item variables.
2141 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2142 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2143 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2144 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2145 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2146 ASN1_ITEM and no wrapper functions.
2149 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2150 replace the old function pointer based I/O routines. Change most of
2151 the *_d2i_bio() and *_d2i_fp() functions to use these.
2154 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2155 lines, recognice more "algorithms" that can be deselected, and make
2156 it complain about algorithm deselection that isn't recognised.
2159 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2160 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2161 to use new functions. Add NO_ASN1_OLD which can be set to remove
2162 some old style ASN1 functions: this can be used to determine if old
2163 code will still work when these eventually go away.
2166 *) New extension functions for OCSP structures, these follow the
2167 same conventions as certificates and CRLs.
2170 *) New function X509V3_add1_i2d(). This automatically encodes and
2171 adds an extension. Its behaviour can be customised with various
2172 flags to append, replace or delete. Various wrappers added for
2173 certifcates and CRLs.
2176 *) Fix to avoid calling the underlying ASN1 print routine when
2177 an extension cannot be parsed. Correct a typo in the
2178 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2181 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2182 entries for variables.
2185 *) Add functionality to apps/openssl.c for detecting locking
2186 problems: As the program is single-threaded, all we have
2187 to do is register a locking callback using an array for
2188 storing which locks are currently held by the program.
2191 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2192 SSL_get_ex_data_X509_STORE_idx(), which is used in
2193 ssl_verify_cert_chain() and thus can be called at any time
2194 during TLS/SSL handshakes so that thread-safety is essential.
2195 Unfortunately, the ex_data design is not at all suited
2196 for multi-threaded use, so it probably should be abolished.
2199 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2200 [Broadcom, tweaked and integrated by Geoff Thorpe]
2202 *) Move common extension printing code to new function
2203 X509V3_print_extensions(). Reorganise OCSP print routines and
2204 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2207 *) New function X509_signature_print() to remove duplication in some
2211 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2212 set (this was treated exactly the same as SET OF previously). This
2213 is used to reorder the STACK representing the structure to match the
2214 encoding. This will be used to get round a problem where a PKCS7
2215 structure which was signed could not be verified because the STACK
2216 order did not reflect the encoded order.
2219 *) Reimplement the OCSP ASN1 module using the new code.
2222 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2223 for its ASN1 operations. The old style function pointers still exist
2224 for now but they will eventually go away.
2227 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2228 completely replaces the old ASN1 functionality with a table driven
2229 encoder and decoder which interprets an ASN1_ITEM structure describing
2230 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2231 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2232 has also been converted to the new form.
2235 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2236 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2237 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2238 for negative moduli.
2241 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2242 of not touching the result's sign bit.
2245 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2249 *) Changed the LHASH code to use prototypes for callbacks, and created
2250 macros to declare and implement thin (optionally static) functions
2251 that provide type-safety and avoid function pointer casting for the
2252 type-specific callbacks.
2255 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2257 [Veers Staats <staatsvr@asc.hpc.mil>,
2258 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2260 *) Reformat the FAQ so the different questions and answers can be divided
2261 in sections depending on the subject.
2264 *) Have the zlib compression code load ZLIB.DLL dynamically under
2268 *) New function BN_mod_sqrt for computing square roots modulo a prime
2269 (using the probabilistic Tonelli-Shanks algorithm unless
2270 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2271 be handled deterministically).
2272 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2274 *) Make BN_mod_inverse faster by explicitly handling small quotients
2275 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2276 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2279 *) New function BN_kronecker.
2282 *) Fix BN_gcd so that it works on negative inputs; the result is
2283 positive unless both parameters are zero.
2284 Previously something reasonably close to an infinite loop was
2285 possible because numbers could be growing instead of shrinking
2286 in the implementation of Euclid's algorithm.
2289 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2290 sign of the number in question.
2292 Fix BN_is_word(a,w) to work correctly for w == 0.
2294 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2295 because its test if the absolute value of 'a' equals 'w'.
2296 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2297 it exists mostly for use in the implementations of BN_is_zero(),
2298 BN_is_one(), and BN_is_word().
2301 *) New function BN_swap.
2304 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2305 the exponentiation functions are more likely to produce reasonable
2306 results on negative inputs.
2309 *) Change BN_mod_mul so that the result is always non-negative.
2310 Previously, it could be negative if one of the factors was negative;
2311 I don't think anyone really wanted that behaviour.
2314 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2315 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2316 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2317 and add new functions:
2326 BN_mod_lshift1_quick
2330 These functions always generate non-negative results.
2332 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2333 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2335 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2336 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2337 be reduced modulo m.
2338 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2341 The following entry accidentily appeared in the CHANGES file
2342 distributed with OpenSSL 0.9.7. The modifications described in
2343 it do *not* apply to OpenSSL 0.9.7.
2345 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2346 was actually never needed) and in BN_mul(). The removal in BN_mul()
2347 required a small change in bn_mul_part_recursive() and the addition
2348 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2349 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2350 bn_sub_words() and bn_add_words() except they take arrays with
2355 *) In 'openssl passwd', verify passwords read from the terminal
2356 unless the '-salt' option is used (which usually means that
2357 verification would just waste user's time since the resulting
2358 hash is going to be compared with some given password hash)
2359 or the new '-noverify' option is used.
2361 This is an incompatible change, but it does not affect
2362 non-interactive use of 'openssl passwd' (passwords on the command
2363 line, '-stdin' option, '-in ...' option) and thus should not
2367 *) Remove all references to RSAref, since there's no more need for it.
2370 *) Make DSO load along a path given through an environment variable
2371 (SHLIB_PATH) with shl_load().
2374 *) Constify the ENGINE code as a result of BIGNUM constification.
2375 Also constify the RSA code and most things related to it. In a
2376 few places, most notable in the depth of the ASN.1 code, ugly
2377 casts back to non-const were required (to be solved at a later
2381 *) Make it so the openssl application has all engines loaded by default.
2384 *) Constify the BIGNUM routines a little more.
2387 *) Add the following functions:
2389 ENGINE_load_cswift()
2391 ENGINE_load_atalla()
2393 ENGINE_load_builtin_engines()
2395 That way, an application can itself choose if external engines that
2396 are built-in in OpenSSL shall ever be used or not. The benefit is
2397 that applications won't have to be linked with libdl or other dso
2398 libraries unless it's really needed.
2400 Changed 'openssl engine' to load all engines on demand.
2401 Changed the engine header files to avoid the duplication of some
2402 declarations (they differed!).
2405 *) 'openssl engine' can now list capabilities.
2408 *) Better error reporting in 'openssl engine'.
2411 *) Never call load_dh_param(NULL) in s_server.
2414 *) Add engine application. It can currently list engines by name and
2415 identity, and test if they are actually available.
2418 *) Improve RPM specification file by forcing symbolic linking and making
2419 sure the installed documentation is also owned by root.root.
2420 [Damien Miller <djm@mindrot.org>]
2422 *) Give the OpenSSL applications more possibilities to make use of
2423 keys (public as well as private) handled by engines.
2426 *) Add OCSP code that comes from CertCo.
2429 *) Add VMS support for the Rijndael code.
2432 *) Added untested support for Nuron crypto accelerator.
2435 *) Add support for external cryptographic devices. This code was
2436 previously distributed separately as the "engine" branch.
2437 [Geoff Thorpe, Richard Levitte]
2439 *) Rework the filename-translation in the DSO code. It is now possible to
2440 have far greater control over how a "name" is turned into a filename
2441 depending on the operating environment and any oddities about the
2442 different shared library filenames on each system.
2445 *) Support threads on FreeBSD-elf in Configure.
2448 *) Fix for SHA1 assembly problem with MASM: it produces
2449 warnings about corrupt line number information when assembling
2450 with debugging information. This is caused by the overlapping
2452 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2455 NCONF_get_number() has no error checking at all. As a replacement,
2456 NCONF_get_number_e() is defined (_e for "error checking") and is
2457 promoted strongly. The old NCONF_get_number is kept around for
2458 binary backward compatibility.
2459 Make it possible for methods to load from something other than a BIO,
2460 by providing a function pointer that is given a name instead of a BIO.
2461 For example, this could be used to load configuration data from an
2465 *) Fix for non blocking accept BIOs. Added new I/O special reason
2466 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2467 with non blocking I/O was not possible because no retry code was
2468 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2472 *) Added the beginnings of Rijndael support.
2475 *) Fix for bug in DirectoryString mask setting. Add support for
2476 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2477 to allow certificate printing to more controllable, additional
2478 'certopt' option to 'x509' to allow new printing options to be
2482 *) Clean old EAY MD5 hack from e_os.h.
2485 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2487 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2488 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2489 a protocol version number mismatch like a decryption error
2490 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2493 *) Turn on RSA blinding by default in the default implementation
2494 to avoid a timing attack. Applications that don't want it can call
2495 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2496 They would be ill-advised to do so in most cases.
2497 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2499 *) Change RSA blinding code so that it works when the PRNG is not
2500 seeded (in this case, the secret RSA exponent is abused as
2501 an unpredictable seed -- if it is not unpredictable, there
2502 is no point in blinding anyway). Make RSA blinding thread-safe
2503 by remembering the creator's thread ID in rsa->blinding and
2504 having all other threads use local one-time blinding factors
2505 (this requires more computation than sharing rsa->blinding, but
2506 avoids excessive locking; and if an RSA object is not shared
2507 between threads, blinding will still be very fast).
2510 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2512 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2513 via timing by performing a MAC computation even if incorrrect
2514 block cipher padding has been found. This is a countermeasure
2515 against active attacks where the attacker has to distinguish
2516 between bad padding and a MAC verification error. (CAN-2003-0078)
2518 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2519 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2520 Martin Vuagnoux (EPFL, Ilion)]
2522 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2524 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2525 memory from it's contents. This is done with a counter that will
2526 place alternating values in each byte. This can be used to solve
2527 two issues: 1) the removal of calls to memset() by highly optimizing
2528 compilers, and 2) cleansing with other values than 0, since those can
2529 be read through on certain media, for example a swap space on disk.
2532 *) Bugfix: client side session caching did not work with external caching,
2533 because the session->cipher setting was not restored when reloading
2534 from the external cache. This problem was masked, when
2535 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2536 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2539 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2540 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2541 [Zeev Lieber <zeev-l@yahoo.com>]
2543 *) Undo an undocumented change introduced in 0.9.6e which caused
2544 repeated calls to OpenSSL_add_all_ciphers() and
2545 OpenSSL_add_all_digests() to be ignored, even after calling
2549 *) Change the default configuration reader to deal with last line not
2550 being properly terminated.
2553 *) Change X509_NAME_cmp() so it applies the special rules on handling
2554 DN values that are of type PrintableString, as well as RDNs of type
2555 emailAddress where the value has the type ia5String.
2556 [stefank@valicert.com via Richard Levitte]
2558 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2559 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2560 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2561 the bitwise-OR of the two for use by the majority of applications
2562 wanting this behaviour, and update the docs. The documented
2563 behaviour and actual behaviour were inconsistent and had been
2564 changing anyway, so this is more a bug-fix than a behavioural
2566 [Geoff Thorpe, diagnosed by Nadav Har'El]
2568 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2569 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2572 *) Fix initialization code race conditions in
2573 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2574 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2575 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2576 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2577 ssl2_get_cipher_by_char(),
2578 ssl3_get_cipher_by_char().
2579 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2581 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2582 the cached sessions are flushed, as the remove_cb() might use ex_data
2583 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2584 (see [openssl.org #212]).
2585 [Geoff Thorpe, Lutz Jaenicke]
2587 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2588 length, instead of the encoding length to d2i_ASN1_OBJECT.
2591 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2593 *) [In 0.9.6g-engine release:]
2594 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2595 [Lynn Gazis <lgazis@rainbow.com>]
2597 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2599 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2600 and get fix the header length calculation.
2601 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2602 Alon Kantor <alonk@checkpoint.com> (and others),
2605 *) Use proper error handling instead of 'assertions' in buffer
2606 overflow checks added in 0.9.6e. This prevents DoS (the
2607 assertions could call abort()).
2608 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2610 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2612 *) Add various sanity checks to asn1_get_length() to reject
2613 the ASN1 length bytes if they exceed sizeof(long), will appear
2614 negative or the content length exceeds the length of the
2616 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2618 *) Fix cipher selection routines: ciphers without encryption had no flags
2619 for the cipher strength set and where therefore not handled correctly
2620 by the selection routines (PR #130).
2623 *) Fix EVP_dsa_sha macro.
2627 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2628 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2629 that was added in OpenSSL 0.9.6d.
2631 As the countermeasure turned out to be incompatible with some
2632 broken SSL implementations, the new option is part of SSL_OP_ALL.
2633 SSL_OP_ALL is usually employed when compatibility with weird SSL
2634 implementations is desired (e.g. '-bugs' option to 's_client' and
2635 's_server'), so the new option is automatically set in many
2639 *) Changes in security patch:
2641 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2642 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2643 Air Force Materiel Command, USAF, under agreement number
2646 *) Add various sanity checks to asn1_get_length() to reject
2647 the ASN1 length bytes if they exceed sizeof(long), will appear
2648 negative or the content length exceeds the length of the
2649 supplied buffer. (CAN-2002-0659)
2650 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2652 *) Assertions for various potential buffer overflows, not known to
2654 [Ben Laurie (CHATS)]
2656 *) Various temporary buffers to hold ASCII versions of integers were
2657 too small for 64 bit platforms. (CAN-2002-0655)
2658 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2660 *) Remote buffer overflow in SSL3 protocol - an attacker could
2661 supply an oversized session ID to a client. (CAN-2002-0656)
2662 [Ben Laurie (CHATS)]
2664 *) Remote buffer overflow in SSL2 protocol - an attacker could
2665 supply an oversized client master key. (CAN-2002-0656)
2666 [Ben Laurie (CHATS)]
2668 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2670 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2671 encoded as NULL) with id-dsa-with-sha1.
2672 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2674 *) Check various X509_...() return values in apps/req.c.
2675 [Nils Larsch <nla@trustcenter.de>]
2677 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2678 an end-of-file condition would erronously be flagged, when the CRLF
2679 was just at the end of a processed block. The bug was discovered when
2680 processing data through a buffering memory BIO handing the data to a
2681 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2682 <ptsekov@syntrex.com> and Nedelcho Stanev.
2685 *) Implement a countermeasure against a vulnerability recently found
2686 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2687 before application data chunks to avoid the use of known IVs
2688 with data potentially chosen by the attacker.
2691 *) Fix length checks in ssl3_get_client_hello().
2694 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2695 to prevent ssl3_read_internal() from incorrectly assuming that
2696 ssl3_read_bytes() found application data while handshake
2697 processing was enabled when in fact s->s3->in_read_app_data was
2698 merely automatically cleared during the initial handshake.
2699 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2701 *) Fix object definitions for Private and Enterprise: they were not
2702 recognized in their shortname (=lowercase) representation. Extend
2703 obj_dat.pl to issue an error when using undefined keywords instead
2704 of silently ignoring the problem (Svenning Sorensen
2705 <sss@sss.dnsalias.net>).
2708 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2709 generators, i.e. generators other than 2 and 5. (Previously, the
2710 code did not properly initialise the 'add' and 'rem' values to
2711 BN_generate_prime().)
2713 In the new general case, we do not insist that 'generator' is
2714 actually a primitive root: This requirement is rather pointless;
2715 a generator of the order-q subgroup is just as good, if not
2719 *) Map new X509 verification errors to alerts. Discovered and submitted by
2720 Tom Wu <tom@arcot.com>.
2723 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2724 returning non-zero before the data has been completely received
2725 when using non-blocking I/O.
2726 [Bodo Moeller; problem pointed out by John Hughes]
2728 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2729 [Ben Laurie, Lutz Jaenicke]
2731 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2732 Yoram Zahavi <YoramZ@gilian.com>).
2735 *) Add information about CygWin 1.3 and on, and preserve proper
2736 configuration for the versions before that.
2737 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2739 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
2740 check whether we deal with a copy of a session and do not delete from
2741 the cache in this case. Problem reported by "Izhar Shoshani Levi"
2742 <izhar@checkpoint.com>.
2745 *) Do not store session data into the internal session cache, if it
2746 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
2747 flag is set). Proposed by Aslam <aslam@funk.com>.
2750 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
2754 *) [In 0.9.6d-engine release:]
2755 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2756 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2758 *) Add the configuration target linux-s390x.
2759 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
2761 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
2762 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
2763 variable as an indication that a ClientHello message has been
2764 received. As the flag value will be lost between multiple
2765 invocations of ssl3_accept when using non-blocking I/O, the
2766 function may not be aware that a handshake has actually taken
2767 place, thus preventing a new session from being added to the
2770 To avoid this problem, we now set s->new_session to 2 instead of
2771 using a local variable.
2772 [Lutz Jaenicke, Bodo Moeller]
2774 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
2775 if the SSL_R_LENGTH_MISMATCH error is detected.
2776 [Geoff Thorpe, Bodo Moeller]
2778 *) New 'shared_ldflag' column in Configure platform table.
2781 *) Fix EVP_CIPHER_mode macro.
2782 ["Dan S. Camper" <dan@bti.net>]
2784 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
2785 type, we must throw them away by setting rr->length to 0.
2786 [D P Chang <dpc@qualys.com>]
2788 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
2790 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
2791 <Dominikus.Scherkl@biodata.com>. (The previous implementation
2792 worked incorrectly for those cases where range = 10..._2 and
2793 3*range is two bits longer than range.)
2796 *) Only add signing time to PKCS7 structures if it is not already
2800 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
2801 OBJ_ld_ce should be OBJ_id_ce.
2802 Also some ip-pda OIDs in crypto/objects/objects.txt were
2803 incorrect (cf. RFC 3039).
2804 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
2806 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
2807 returns early because it has nothing to do.
2808 [Andy Schneider <andy.schneider@bjss.co.uk>]
2810 *) [In 0.9.6c-engine release:]
2811 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
2812 [Andy Schneider <andy.schneider@bjss.co.uk>]
2814 *) [In 0.9.6c-engine release:]
2815 Add support for Cryptographic Appliance's keyserver technology.
2816 (Use engine 'keyclient')
2817 [Cryptographic Appliances and Geoff Thorpe]
2819 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
2820 is called via tools/c89.sh because arguments have to be
2821 rearranged (all '-L' options must appear before the first object
2823 [Richard Shapiro <rshapiro@abinitio.com>]
2825 *) [In 0.9.6c-engine release:]
2826 Add support for Broadcom crypto accelerator cards, backported
2828 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
2830 *) [In 0.9.6c-engine release:]
2831 Add support for SureWare crypto accelerator cards from
2832 Baltimore Technologies. (Use engine 'sureware')
2833 [Baltimore Technologies and Mark Cox]
2835 *) [In 0.9.6c-engine release:]
2836 Add support for crypto accelerator cards from Accelerated
2837 Encryption Processing, www.aep.ie. (Use engine 'aep')
2838 [AEP Inc. and Mark Cox]
2840 *) Add a configuration entry for gcc on UnixWare.
2841 [Gary Benson <gbenson@redhat.com>]
2843 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
2844 messages are stored in a single piece (fixed-length part and
2845 variable-length part combined) and fix various bugs found on the way.
2848 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
2849 instead. BIO_gethostbyname() does not know what timeouts are
2850 appropriate, so entries would stay in cache even when they have
2852 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
2854 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
2855 faced with a pathologically small ClientHello fragment that does
2856 not contain client_version: Instead of aborting with an error,
2857 simply choose the highest available protocol version (i.e.,
2858 TLS 1.0 unless it is disabled). In practice, ClientHello
2859 messages are never sent like this, but this change gives us
2860 strictly correct behaviour at least for TLS.
2863 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
2864 never resets s->method to s->ctx->method when called from within
2865 one of the SSL handshake functions.
2866 [Bodo Moeller; problem pointed out by Niko Baric]
2868 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
2869 (sent using the client's version number) if client_version is
2870 smaller than the protocol version in use. Also change
2871 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
2872 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
2873 the client will at least see that alert.
2876 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
2880 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
2881 client receives HelloRequest while in a handshake.
2882 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
2884 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
2885 should end in 'break', not 'goto end' which circuments various
2886 cleanups done in state SSL_ST_OK. But session related stuff
2887 must be disabled for SSL_ST_OK in the case that we just sent a
2890 Also avoid some overhead by not calling ssl_init_wbio_buffer()
2891 before just sending a HelloRequest.
2892 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
2894 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
2895 reveal whether illegal block cipher padding was found or a MAC
2896 verification error occured. (Neither SSLerr() codes nor alerts
2897 are directly visible to potential attackers, but the information
2898 may leak via logfiles.)
2900 Similar changes are not required for the SSL 2.0 implementation
2901 because the number of padding bytes is sent in clear for SSL 2.0,
2902 and the extra bytes are just ignored. However ssl/s2_pkt.c
2903 failed to verify that the purported number of padding bytes is in
2907 *) Add OpenUNIX-8 support including shared libraries
2908 (Boyd Lynn Gerber <gerberb@zenez.com>).
2911 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
2912 'wristwatch attack' using huge encoding parameters (cf.
2913 James H. Manger's CRYPTO 2001 paper). Note that the
2914 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
2915 encoding parameters and hence was not vulnerable.
2918 *) BN_sqr() bug fix.
2919 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
2921 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
2922 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
2923 followed by modular reduction.
2924 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
2926 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
2927 equivalent based on BN_pseudo_rand() instead of BN_rand().
2930 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
2931 This function was broken, as the check for a new client hello message
2932 to handle SGC did not allow these large messages.
2933 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
2936 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
2939 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
2940 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
2943 *) Rework the configuration and shared library support for Tru64 Unix.
2944 The configuration part makes use of modern compiler features and
2945 still retains old compiler behavior for those that run older versions
2946 of the OS. The shared library support part includes a variant that
2947 uses the RPATH feature, and is available through the special
2948 configuration target "alpha-cc-rpath", which will never be selected
2950 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
2952 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
2953 with the same message size as in ssl3_get_certificate_request().
2954 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
2955 messages might inadvertently be reject as too long.
2956 [Petr Lampa <lampa@fee.vutbr.cz>]
2958 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
2961 *) Modified SSL library such that the verify_callback that has been set
2962 specificly for an SSL object with SSL_set_verify() is actually being
2963 used. Before the change, a verify_callback set with this function was
2964 ignored and the verify_callback() set in the SSL_CTX at the time of
2965 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
2966 to allow the necessary settings.
2969 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
2970 explicitly to NULL, as at least on Solaris 8 this seems not always to be
2971 done automatically (in contradiction to the requirements of the C
2972 standard). This made problems when used from OpenSSH.
2975 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
2976 dh->length and always used
2978 BN_rand_range(priv_key, dh->p).
2980 BN_rand_range() is not necessary for Diffie-Hellman, and this
2981 specific range makes Diffie-Hellman unnecessarily inefficient if
2982 dh->length (recommended exponent length) is much smaller than the
2983 length of dh->p. We could use BN_rand_range() if the order of
2984 the subgroup was stored in the DH structure, but we only have
2989 BN_rand(priv_key, l, ...)
2991 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
2997 RSA_eay_public_encrypt
2998 RSA_eay_private_decrypt
2999 RSA_eay_private_encrypt (signing)
3000 RSA_eay_public_decrypt (signature verification)
3002 (default implementations for RSA_public_encrypt,
3003 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3004 always reject numbers >= n.
3007 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3008 to synchronize access to 'locking_thread'. This is necessary on
3009 systems where access to 'locking_thread' (an 'unsigned long'
3010 variable) is not atomic.
3013 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3014 *before* setting the 'crypto_lock_rand' flag. The previous code had
3015 a race condition if 0 is a valid thread ID.
3016 [Travis Vitek <vitek@roguewave.com>]
3018 *) Add support for shared libraries under Irix.
3019 [Albert Chin-A-Young <china@thewrittenword.com>]
3021 *) Add configuration option to build on Linux on both big-endian and
3023 [Ralf Baechle <ralf@uni-koblenz.de>]
3025 *) Add the possibility to create shared libraries on HP-UX.
3028 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3030 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3031 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3032 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3033 PRNG state recovery was possible based on the output of
3034 one PRNG request appropriately sized to gain knowledge on
3035 'md' followed by enough consecutive 1-byte PRNG requests
3036 to traverse all of 'state'.
3038 1. When updating 'md_local' (the current thread's copy of 'md')
3039 during PRNG output generation, hash all of the previous
3040 'md_local' value, not just the half used for PRNG output.
3042 2. Make the number of bytes from 'state' included into the hash
3043 independent from the number of PRNG bytes requested.
3045 The first measure alone would be sufficient to avoid
3046 Markku-Juhani's attack. (Actually it had never occurred
3047 to me that the half of 'md_local' used for chaining was the
3048 half from which PRNG output bytes were taken -- I had always
3049 assumed that the secret half would be used.) The second
3050 measure makes sure that additional data from 'state' is never
3051 mixed into 'md_local' in small portions; this heuristically
3052 further strengthens the PRNG.
3055 *) Fix crypto/bn/asm/mips3.s.
3058 *) When only the key is given to "enc", the IV is undefined. Print out
3059 an error message in this case.
3062 *) Handle special case when X509_NAME is empty in X509 printing routines.
3065 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3066 positive and less than q.
3069 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3070 used: it isn't thread safe and the add_lock_callback should handle
3072 [Paul Rose <Paul.Rose@bridge.com>]
3074 *) Verify that incoming data obeys the block size in
3075 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3079 [Ulf Möller, Bodo Möller]
3081 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3082 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3083 when fixing the server behaviour for backwards-compatible 'client
3084 hello' messages. (Note that the attack is impractical against
3085 SSL 3.0 and TLS 1.0 anyway because length and version checking
3086 means that the probability of guessing a valid ciphertext is
3087 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3090 Before 0.9.5, the countermeasure (hide the error by generating a
3091 random 'decryption result') did not work properly because
3092 ERR_clear_error() was missing, meaning that SSL_get_error() would
3093 detect the supposedly ignored error.
3095 Both problems are now fixed.
3098 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3099 (previously it was 1024).
3102 *) Fix for compatibility mode trust settings: ignore trust settings
3103 unless some valid trust or reject settings are present.
3106 *) Fix for blowfish EVP: its a variable length cipher.
3109 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3110 parameters in DSA public key structures and return an error in the
3111 DSA routines if parameters are absent.
3114 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3115 in the current directory if neither $RANDFILE nor $HOME was set.
3116 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3117 caused some confusion to Windows users who haven't defined $HOME.
3118 Thus RAND_file_name() is changed again: e_os.h can define a
3119 DEFAULT_HOME, which will be used if $HOME is not set.
3120 For Windows, we use "C:"; on other platforms, we still require
3121 environment variables.
3123 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3124 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3125 having multiple threads call RAND_poll() concurrently.
3128 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3129 combination of a flag and a thread ID variable.
3130 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3131 flag), *other* threads can enter ssleay_add_bytes without obeying
3132 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3133 that they do not hold after the first thread unsets add_do_not_lock).
3136 *) Change bctest again: '-x' expressions are not available in all
3140 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
3142 *) Fix a couple of memory leaks in PKCS7_dataDecode()
3143 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
3145 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
3146 the default extension for executables, if any. Also, make the perl
3147 scripts that use symlink() to test if it really exists and use "cp"
3148 if it doesn't. All this made OpenSSL compilable and installable in
3152 *) Fix for asn1_GetSequence() for indefinite length constructed data.
3153 If SEQUENCE is length is indefinite just set c->slen to the total
3154 amount of data available.
3155 [Steve Henson, reported by shige@FreeBSD.org]
3156 [This change does not apply to 0.9.7.]
3158 *) Change bctest to avoid here-documents inside command substitution
3159 (workaround for FreeBSD /bin/sh bug).
3160 For compatibility with Ultrix, avoid shell functions (introduced
3161 in the bctest version that searches along $PATH).
3164 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
3165 with des_encrypt() defined on some operating systems, like Solaris
3169 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
3170 On the Importance of Eliminating Errors in Cryptographic
3171 Computations, J. Cryptology 14 (2001) 2, 101-119,
3172 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
3175 *) MIPS assembler BIGNUM division bug fix.
3178 *) Disabled incorrect Alpha assembler code.
3181 *) Fix PKCS#7 decode routines so they correctly update the length
3182 after reading an EOC for the EXPLICIT tag.
3184 [This change does not apply to 0.9.7.]
3186 *) Fix bug in PKCS#12 key generation routines. This was triggered
3187 if a 3DES key was generated with a 0 initial byte. Include
3188 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3189 (but broken) behaviour.
3192 *) Enhance bctest to search for a working bc along $PATH and print
3194 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3196 *) Fix memory leaks in err.c: free err_data string if necessary;
3197 don't write to the wrong index in ERR_set_error_data.
3200 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3204 *) Replace rdtsc with _emit statements for VC++ version 5.
3205 [Jeremy Cooper <jeremy@baymoo.org>]
3207 *) Make it possible to reuse SSLv2 sessions.
3210 *) In copy_email() check for >= 0 as a return value for
3211 X509_NAME_get_index_by_NID() since 0 is a valid index.
3212 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3214 *) Avoid coredump with unsupported or invalid public keys by checking if
3215 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3216 PKCS7_verify() fails with non detached data.
3219 *) Don't use getenv in library functions when run as setuid/setgid.
3220 New function OPENSSL_issetugid().
3223 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3224 due to incorrect handling of multi-threading:
3226 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3228 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3230 3. Count how many times MemCheck_off() has been called so that
3231 nested use can be treated correctly. This also avoids
3232 inband-signalling in the previous code (which relied on the
3233 assumption that thread ID 0 is impossible).
3236 *) Add "-rand" option also to s_client and s_server.
3239 *) Fix CPU detection on Irix 6.x.
3240 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3241 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3243 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3246 [This change does not apply to 0.9.7.]
3248 *) Use the cached encoding of an X509_NAME structure rather than
3249 copying it. This is apparently the reason for the libsafe "errors"
3250 but the code is actually correct.
3253 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3254 Bleichenbacher's DSA attack.
3255 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3256 to be set and top=0 forces the highest bit to be set; top=-1 is new
3257 and leaves the highest bit random.
3258 [Ulf Moeller, Bodo Moeller]
3260 *) In the NCONF_...-based implementations for CONF_... queries
3261 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3262 a temporary CONF structure with the data component set to NULL
3263 (which gives segmentation faults in lh_retrieve).
3264 Instead, use NULL for the CONF pointer in CONF_get_string and
3265 CONF_get_number (which may use environment variables) and directly
3266 return NULL from CONF_get_section.
3269 *) Fix potential buffer overrun for EBCDIC.
3272 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3273 keyUsage if basicConstraints absent for a CA.
3276 *) Make SMIME_write_PKCS7() write mail header values with a format that
3277 is more generally accepted (no spaces before the semicolon), since
3278 some programs can't parse those values properly otherwise. Also make
3279 sure BIO's that break lines after each write do not create invalid
3283 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3284 macros previously used would not encode an empty SEQUENCE OF
3285 and break the signature.
3287 [This change does not apply to 0.9.7.]
3289 *) Zero the premaster secret after deriving the master secret in
3293 *) Add some EVP_add_digest_alias registrations (as found in
3294 OpenSSL_add_all_digests()) to SSL_library_init()
3295 aka OpenSSL_add_ssl_algorithms(). This provides improved
3296 compatibility with peers using X.509 certificates
3297 with unconventional AlgorithmIdentifier OIDs.
3300 *) Fix for Irix with NO_ASM.
3301 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3303 *) ./config script fixes.
3304 [Ulf Moeller, Richard Levitte]
3306 *) Fix 'openssl passwd -1'.
3309 *) Change PKCS12_key_gen_asc() so it can cope with non null
3310 terminated strings whose length is passed in the passlen
3311 parameter, for example from PEM callbacks. This was done
3312 by adding an extra length parameter to asc2uni().
3313 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3315 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3316 call failed, free the DSA structure.
3319 *) Fix to uni2asc() to cope with zero length Unicode strings.
3320 These are present in some PKCS#12 files.
3323 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3324 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3325 when writing a 32767 byte record.
3326 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3328 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3329 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3331 (RSA objects have a reference count access to which is protected
3332 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3333 so they are meant to be shared between threads.)
3334 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3335 "Reddie, Steven" <Steven.Reddie@ca.com>]
3337 *) Fix a deadlock in CRYPTO_mem_leaks().
3340 *) Use better test patterns in bntest.
3343 *) rand_win.c fix for Borland C.
3346 *) BN_rshift bugfix for n == 0.
3349 *) Add a 'bctest' script that checks for some known 'bc' bugs
3350 so that 'make test' does not abort just because 'bc' is broken.
3353 *) Store verify_result within SSL_SESSION also for client side to
3354 avoid potential security hole. (Re-used sessions on the client side
3355 always resulted in verify_result==X509_V_OK, not using the original
3356 result of the server certificate verification.)
3359 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3360 SSL3_RT_APPLICATION_DATA, return 0.
3361 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3365 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3366 releases, have been re-implemented by renaming the previous
3367 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3368 and ssl3_read_internal, respectively, and adding 'peek' parameters
3369 to them. The new ssl[23]_{read,peek} functions are calls to
3370 ssl[23]_read_internal with the 'peek' flag set appropriately.
3371 A 'peek' parameter has also been added to ssl3_read_bytes, which
3372 does the actual work for ssl3_read_internal.
3375 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3376 the method-specific "init()" handler. Also clean up ex_data after
3377 calling the method-specific "finish()" handler. Previously, this was
3378 happening the other way round.
3381 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3382 The previous value, 12, was not always sufficient for BN_mod_exp().
3385 *) Make sure that shared libraries get the internal name engine with
3386 the full version number and not just 0. This should mark the
3387 shared libraries as not backward compatible. Of course, this should
3388 be changed again when we can guarantee backward binary compatibility.
3391 *) Fix typo in get_cert_by_subject() in by_dir.c
3392 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3394 *) Rework the system to generate shared libraries:
3396 - Make note of the expected extension for the shared libraries and
3397 if there is a need for symbolic links from for example libcrypto.so.0
3398 to libcrypto.so.0.9.7. There is extended info in Configure for
3401 - Make as few rebuilds of the shared libraries as possible.
3403 - Still avoid linking the OpenSSL programs with the shared libraries.
3405 - When installing, install the shared libraries separately from the
3409 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3411 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3412 and not in SSL_clear because the latter is also used by the
3413 accept/connect functions; previously, the settings made by
3414 SSL_set_read_ahead would be lost during the handshake.
3415 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3417 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3418 Previously, it would create entries for disableed algorithms no
3422 *) Added several new manual pages for SSL_* function.
3425 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3427 *) In ssl23_get_client_hello, generate an error message when faced
3428 with an initial SSL 3.0/TLS record that is too small to contain the
3429 first two bytes of the ClientHello message, i.e. client_version.
3430 (Note that this is a pathologic case that probably has never happened
3431 in real life.) The previous approach was to use the version number
3432 from the record header as a substitute; but our protocol choice
3433 should not depend on that one because it is not authenticated
3434 by the Finished messages.
3437 *) More robust randomness gathering functions for Windows.
3438 [Jeffrey Altman <jaltman@columbia.edu>]
3440 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3441 not set then we don't setup the error code for issuer check errors
3442 to avoid possibly overwriting other errors which the callback does
3443 handle. If an application does set the flag then we assume it knows
3444 what it is doing and can handle the new informational codes
3448 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3449 a general "ANY" type, as such it should be able to decode anything
3450 including tagged types. However it didn't check the class so it would
3451 wrongly interpret tagged types in the same way as their universal
3452 counterpart and unknown types were just rejected. Changed so that the
3453 tagged and unknown types are handled in the same way as a SEQUENCE:
3454 that is the encoding is stored intact. There is also a new type
3455 "V_ASN1_OTHER" which is used when the class is not universal, in this
3456 case we have no idea what the actual type is so we just lump them all
3460 *) On VMS, stdout may very well lead to a file that is written to
3461 in a record-oriented fashion. That means that every write() will
3462 write a separate record, which will be read separately by the
3463 programs trying to read from it. This can be very confusing.
3465 The solution is to put a BIO filter in the way that will buffer
3466 text until a linefeed is reached, and then write everything a
3467 line at a time, so every record written will be an actual line,
3468 not chunks of lines and not (usually doesn't happen, but I've
3469 seen it once) several lines in one record. BIO_f_linebuffer() is
3472 Currently, it's a VMS-only method, because that's where it has
3473 been tested well enough.
3476 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3477 it can return incorrect results.
3478 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3479 but it was in 0.9.6-beta[12].)
3482 *) Disable the check for content being present when verifying detached
3483 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3484 include zero length content when signing messages.
3487 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3488 BIO_ctrl (for BIO pairs).
3491 *) Add DSO method for VMS.
3494 *) Bug fix: Montgomery multiplication could produce results with the
3498 *) Add RPM specification openssl.spec and modify it to build three
3499 packages. The default package contains applications, application
3500 documentation and run-time libraries. The devel package contains
3501 include files, static libraries and function documentation. The
3502 doc package contains the contents of the doc directory. The original
3503 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3506 *) Add a large number of documentation files for many SSL routines.
3507 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3509 *) Add a configuration entry for Sony News 4.
3510 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3512 *) Don't set the two most significant bits to one when generating a
3513 random number < q in the DSA library.
3516 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3517 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3518 the underlying transport is blocking) if a handshake took place.
3519 (The default behaviour is needed by applications such as s_client
3520 and s_server that use select() to determine when to use SSL_read;
3521 but for applications that know in advance when to expect data, it
3522 just makes things more complicated.)
3525 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3529 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3530 work better on such systems.
3531 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3533 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3534 Update PKCS12_parse() so it copies the friendlyName and the
3535 keyid to the certificates aux info.
3538 *) Fix bug in PKCS7_verify() which caused an infinite loop
3539 if there was more than one signature.
3540 [Sven Uszpelkat <su@celocom.de>]
3542 *) Major change in util/mkdef.pl to include extra information
3543 about each symbol, as well as presentig variables as well
3544 as functions. This change means that there's n more need
3545 to rebuild the .num files when some algorithms are excluded.
3548 *) Allow the verify time to be set by an application,
3549 rather than always using the current time.
3552 *) Phase 2 verify code reorganisation. The certificate
3553 verify code now looks up an issuer certificate by a
3554 number of criteria: subject name, authority key id
3555 and key usage. It also verifies self signed certificates
3556 by the same criteria. The main comparison function is
3557 X509_check_issued() which performs these checks.
3559 Lot of changes were necessary in order to support this
3560 without completely rewriting the lookup code.
3562 Authority and subject key identifier are now cached.
3564 The LHASH 'certs' is X509_STORE has now been replaced
3565 by a STACK_OF(X509_OBJECT). This is mainly because an
3566 LHASH can't store or retrieve multiple objects with
3567 the same hash value.
3569 As a result various functions (which were all internal
3570 use only) have changed to handle the new X509_STORE
3571 structure. This will break anything that messed round
3572 with X509_STORE internally.
3574 The functions X509_STORE_add_cert() now checks for an
3575 exact match, rather than just subject name.
3577 The X509_STORE API doesn't directly support the retrieval
3578 of multiple certificates matching a given criteria, however
3579 this can be worked round by performing a lookup first
3580 (which will fill the cache with candidate certificates)
3581 and then examining the cache for matches. This is probably
3582 the best we can do without throwing out X509_LOOKUP
3583 entirely (maybe later...).
3585 The X509_VERIFY_CTX structure has been enhanced considerably.
3587 All certificate lookup operations now go via a get_issuer()
3588 callback. Although this currently uses an X509_STORE it
3589 can be replaced by custom lookups. This is a simple way
3590 to bypass the X509_STORE hackery necessary to make this
3591 work and makes it possible to use more efficient techniques
3592 in future. A very simple version which uses a simple
3593 STACK for its trusted certificate store is also provided
3594 using X509_STORE_CTX_trusted_stack().
3596 The verify_cb() and verify() callbacks now have equivalents
3597 in the X509_STORE_CTX structure.
3599 X509_STORE_CTX also has a 'flags' field which can be used
3600 to customise the verify behaviour.
3603 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3604 excludes S/MIME capabilities.
3607 *) When a certificate request is read in keep a copy of the
3608 original encoding of the signed data and use it when outputing
3609 again. Signatures then use the original encoding rather than
3610 a decoded, encoded version which may cause problems if the
3611 request is improperly encoded.
3614 *) For consistency with other BIO_puts implementations, call
3615 buffer_write(b, ...) directly in buffer_puts instead of calling
3618 In BIO_puts, increment b->num_write as in BIO_write.
3619 [Peter.Sylvester@EdelWeb.fr]
3621 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3622 BN_zero, we may not return a BIGNUM with an array consisting of
3626 *) Avoid calling abort() from within the library when problems are
3627 detected, except if preprocessor symbols have been defined
3628 (such as REF_CHECK, BN_DEBUG etc.).
3631 *) New openssl application 'rsautl'. This utility can be
3632 used for low level RSA operations. DER public key
3633 BIO/fp routines also added.
3636 *) New Configure entry and patches for compiling on QNX 4.
3637 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3639 *) A demo state-machine implementation was sponsored by
3640 Nuron (http://www.nuron.com/) and is now available in
3641 demos/state_machine.
3644 *) New options added to the 'dgst' utility for signature
3645 generation and verification.
3648 *) Unrecognized PKCS#7 content types are now handled via a
3649 catch all ASN1_TYPE structure. This allows unsupported
3650 types to be stored as a "blob" and an application can
3651 encode and decode it manually.
3654 *) Fix various signed/unsigned issues to make a_strex.c
3656 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3658 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3659 length if passed a buffer. ASN1_INTEGER_to_BN failed
3660 if passed a NULL BN and its argument was negative.
3661 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3663 *) Modification to PKCS#7 encoding routines to output definite
3664 length encoding. Since currently the whole structures are in
3665 memory there's not real point in using indefinite length
3666 constructed encoding. However if OpenSSL is compiled with
3667 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3670 *) Added BIO_vprintf() and BIO_vsnprintf().
3673 *) Added more prefixes to parse for in the the strings written
3674 through a logging bio, to cover all the levels that are available
3675 through syslog. The prefixes are now:
3677 PANIC, EMERG, EMR => LOG_EMERG
3678 ALERT, ALR => LOG_ALERT
3679 CRIT, CRI => LOG_CRIT
3680 ERROR, ERR => LOG_ERR
3681 WARNING, WARN, WAR => LOG_WARNING
3682 NOTICE, NOTE, NOT => LOG_NOTICE
3683 INFO, INF => LOG_INFO
3684 DEBUG, DBG => LOG_DEBUG
3686 and as before, if none of those prefixes are present at the
3687 beginning of the string, LOG_ERR is chosen.
3689 On Win32, the LOG_* levels are mapped according to this:
3691 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3692 LOG_WARNING => EVENTLOG_WARNING_TYPE
3693 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3697 *) Made it possible to reconfigure with just the configuration
3698 argument "reconf" or "reconfigure". The command line arguments
3699 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3700 and are retrieved from there when reconfiguring.
3704 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3706 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3709 *) The obj_dat.pl script was messing up the sorting of object
3710 names. The reason was that it compared the quoted version
3711 of strings as a result "OCSP" > "OCSP Signing" because
3712 " > SPACE. Changed script to store unquoted versions of
3713 names and add quotes on output. It was also omitting some
3714 names from the lookup table if they were given a default
3715 value (that is if SN is missing it is given the same
3716 value as LN and vice versa), these are now added on the
3717 grounds that if an object has a name we should be able to
3718 look it up. Finally added warning output when duplicate
3719 short or long names are found.
3722 *) Changes needed for Tandem NSK.
3723 [Scott Uroff <scott@xypro.com>]
3725 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3726 RSA_padding_check_SSLv23(), special padding was never detected
3727 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3728 version rollback attacks was not effective.
3730 In s23_clnt.c, don't use special rollback-attack detection padding
3731 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3732 client; similarly, in s23_srvr.c, don't do the rollback check if
3733 SSL 2.0 is the only protocol enabled in the server.
3736 *) Make it possible to get hexdumps of unprintable data with 'openssl
3737 asn1parse'. By implication, the functions ASN1_parse_dump() and
3738 BIO_dump_indent() are added.
3741 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
3742 these print out strings and name structures based on various
3743 flags including RFC2253 support and proper handling of
3744 multibyte characters. Added options to the 'x509' utility
3745 to allow the various flags to be set.
3748 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
3749 Also change the functions X509_cmp_current_time() and
3750 X509_gmtime_adj() work with an ASN1_TIME structure,
3751 this will enable certificates using GeneralizedTime in validity
3752 dates to be checked.
3755 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
3756 negative public key encodings) on by default,
3757 NO_NEG_PUBKEY_BUG can be set to disable it.
3760 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
3761 content octets. An i2c_ASN1_OBJECT is unnecessary because
3762 the encoding can be trivially obtained from the structure.
3765 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
3766 not read locks (CRYPTO_r_[un]lock).
3769 *) A first attempt at creating official support for shared
3770 libraries through configuration. I've kept it so the
3771 default is static libraries only, and the OpenSSL programs
3772 are always statically linked for now, but there are
3773 preparations for dynamic linking in place.
3774 This has been tested on Linux and Tru64.
3777 *) Randomness polling function for Win9x, as described in:
3778 Peter Gutmann, Software Generation of Practically Strong
3782 *) Fix so PRNG is seeded in req if using an already existing
3786 *) New options to smime application. -inform and -outform
3787 allow alternative formats for the S/MIME message including
3788 PEM and DER. The -content option allows the content to be
3789 specified separately. This should allow things like Netscape
3790 form signing output easier to verify.
3793 *) Fix the ASN1 encoding of tags using the 'long form'.
3796 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
3797 STRING types. These convert content octets to and from the
3798 underlying type. The actual tag and length octets are
3799 already assumed to have been read in and checked. These
3800 are needed because all other string types have virtually
3801 identical handling apart from the tag. By having versions
3802 of the ASN1 functions that just operate on content octets
3803 IMPLICIT tagging can be handled properly. It also allows
3804 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
3805 and ASN1_INTEGER are identical apart from the tag.
3808 *) Change the handling of OID objects as follows:
3810 - New object identifiers are inserted in objects.txt, following
3811 the syntax given in objects.README.
3812 - objects.pl is used to process obj_mac.num and create a new
3814 - obj_dat.pl is used to create a new obj_dat.h, using the data in
3817 This is currently kind of a hack, and the perl code in objects.pl
3818 isn't very elegant, but it works as I intended. The simplest way
3819 to check that it worked correctly is to look in obj_dat.h and
3820 check the array nid_objs and make sure the objects haven't moved
3821 around (this is important!). Additions are OK, as well as
3822 consistent name changes.
3825 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
3828 *) Addition of the command line parameter '-rand file' to 'openssl req'.
3829 The given file adds to whatever has already been seeded into the
3830 random pool through the RANDFILE configuration file option or
3831 environment variable, or the default random state file.
3834 *) mkstack.pl now sorts each macro group into lexical order.
3835 Previously the output order depended on the order the files
3836 appeared in the directory, resulting in needless rewriting
3840 *) Patches to make OpenSSL compile under Win32 again. Mostly
3841 work arounds for the VC++ problem that it treats func() as
3842 func(void). Also stripped out the parts of mkdef.pl that
3843 added extra typesafe functions: these no longer exist.
3846 *) Reorganisation of the stack code. The macros are now all
3847 collected in safestack.h . Each macro is defined in terms of
3848 a "stack macro" of the form SKM_<name>(type, a, b). The
3849 DEBUG_SAFESTACK is now handled in terms of function casts,
3850 this has the advantage of retaining type safety without the
3851 use of additional functions. If DEBUG_SAFESTACK is not defined
3852 then the non typesafe macros are used instead. Also modified the
3853 mkstack.pl script to handle the new form. Needs testing to see
3854 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
3855 the default if no major problems. Similar behaviour for ASN1_SET_OF
3856 and PKCS12_STACK_OF.
3859 *) When some versions of IIS use the 'NET' form of private key the
3860 key derivation algorithm is different. Normally MD5(password) is
3861 used as a 128 bit RC4 key. In the modified case
3862 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
3863 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
3864 as the old Netscape_RSA functions except they have an additional
3865 'sgckey' parameter which uses the modified algorithm. Also added
3866 an -sgckey command line option to the rsa utility. Thanks to
3867 Adrian Peck <bertie@ncipher.com> for posting details of the modified
3868 algorithm to openssl-dev.
3871 *) The evp_local.h macros were using 'c.##kname' which resulted in
3872 invalid expansion on some systems (SCO 5.0.5 for example).
3873 Corrected to 'c.kname'.
3874 [Phillip Porch <root@theporch.com>]
3876 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
3877 a STACK of email addresses from a certificate or request, these look
3878 in the subject name and the subject alternative name extensions and
3879 omit any duplicate addresses.
3882 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
3883 This makes DSA verification about 2 % faster.
3886 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
3887 (meaning that now 2^5 values will be precomputed, which is only 4 KB
3888 plus overhead for 1024 bit moduli).
3889 This makes exponentiations about 0.5 % faster for 1024 bit
3890 exponents (as measured by "openssl speed rsa2048").
3893 *) Rename memory handling macros to avoid conflicts with other
3895 Malloc => OPENSSL_malloc
3896 Malloc_locked => OPENSSL_malloc_locked
3897 Realloc => OPENSSL_realloc
3898 Free => OPENSSL_free
3901 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
3902 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
3905 *) CygWin32 support.
3906 [John Jarvie <jjarvie@newsguy.com>]
3908 *) The type-safe stack code has been rejigged. It is now only compiled
3909 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
3910 by default all type-specific stack functions are "#define"d back to
3911 standard stack functions. This results in more streamlined output
3912 but retains the type-safety checking possibilities of the original
3916 *) The STACK code has been cleaned up, and certain type declarations
3917 that didn't make a lot of sense have been brought in line. This has
3918 also involved a cleanup of sorts in safestack.h to more correctly
3919 map type-safe stack functions onto their plain stack counterparts.
3920 This work has also resulted in a variety of "const"ifications of
3921 lots of the code, especially "_cmp" operations which should normally
3922 be prototyped with "const" parameters anyway.
3925 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
3926 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
3927 (The PRNG state consists of two parts, the large pool 'state' and 'md',
3928 where all of 'md' is used each time the PRNG is used, but 'state'
3929 is used only indexed by a cyclic counter. As entropy may not be
3930 well distributed from the beginning, 'md' is important as a
3931 chaining variable. However, the output function chains only half
3932 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
3933 all of 'md', and seeding with STATE_SIZE dummy bytes will result
3934 in all of 'state' being rewritten, with the new values depending
3935 on virtually all of 'md'. This overcomes the 80 bit limitation.)
3938 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
3939 the handshake is continued after ssl_verify_cert_chain();
3940 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
3941 can lead to 'unexplainable' connection aborts later.
3942 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
3944 *) Major EVP API cipher revision.
3945 Add hooks for extra EVP features. This allows various cipher
3946 parameters to be set in the EVP interface. Support added for variable
3947 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
3948 setting of RC2 and RC5 parameters.
3950 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
3953 Remove lots of duplicated code from the EVP library. For example *every*
3954 cipher init() function handles the 'iv' in the same way according to the
3955 cipher mode. They also all do nothing if the 'key' parameter is NULL and
3956 for CFB and OFB modes they zero ctx->num.
3958 New functionality allows removal of S/MIME code RC2 hack.
3960 Most of the routines have the same form and so can be declared in terms
3963 By shifting this to the top level EVP_CipherInit() it can be removed from
3964 all individual ciphers. If the cipher wants to handle IVs or keys
3965 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
3968 Change lots of functions like EVP_EncryptUpdate() to now return a
3969 value: although software versions of the algorithms cannot fail
3970 any installed hardware versions can.
3973 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
3974 this option is set, tolerate broken clients that send the negotiated
3975 protocol version number instead of the requested protocol version
3979 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
3980 i.e. non-zero for export ciphersuites, zero otherwise.
3981 Previous versions had this flag inverted, inconsistent with
3982 rsa_tmp_cb (..._TMP_RSA_CB).
3983 [Bodo Moeller; problem reported by Amit Chopra]
3985 *) Add missing DSA library text string. Work around for some IIS
3986 key files with invalid SEQUENCE encoding.
3989 *) Add a document (doc/standards.txt) that list all kinds of standards
3990 and so on that are implemented in OpenSSL.
3993 *) Enhance c_rehash script. Old version would mishandle certificates
3994 with the same subject name hash and wouldn't handle CRLs at all.
3995 Added -fingerprint option to crl utility, to support new c_rehash
3999 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4002 *) Fix for SSL server purpose checking. Server checking was
4003 rejecting certificates which had extended key usage present
4004 but no ssl client purpose.
4005 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4007 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4008 is a little unclear about how a blank password is handled.
4009 Since the password in encoded as a BMPString with terminating
4010 double NULL a zero length password would end up as just the
4011 double NULL. However no password at all is different and is
4012 handled differently in the PKCS#12 key generation code. NS
4013 treats a blank password as zero length. MSIE treats it as no
4014 password on export: but it will try both on import. We now do
4015 the same: PKCS12_parse() tries zero length and no password if
4016 the password is set to "" or NULL (NULL is now a valid password:
4017 it wasn't before) as does the pkcs12 application.
4020 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4021 perror when PEM_read_bio_X509_REQ fails, the error message must
4022 be obtained from the error queue.
4025 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4026 it in ERR_remove_state if appropriate, and change ERR_get_state
4027 accordingly to avoid race conditions (this is necessary because
4028 thread_hash is no longer constant once set).
4031 *) Bugfix for linux-elf makefile.one.
4034 *) RSA_get_default_method() will now cause a default
4035 RSA_METHOD to be chosen if one doesn't exist already.
4036 Previously this was only set during a call to RSA_new()
4037 or RSA_new_method(NULL) meaning it was possible for
4038 RSA_get_default_method() to return NULL.
4041 *) Added native name translation to the existing DSO code
4042 that will convert (if the flag to do so is set) filenames
4043 that are sufficiently small and have no path information
4044 into a canonical native form. Eg. "blah" converted to
4045 "libblah.so" or "blah.dll" etc.
4048 *) New function ERR_error_string_n(e, buf, len) which is like
4049 ERR_error_string(e, buf), but writes at most 'len' bytes
4050 including the 0 terminator. For ERR_error_string_n, 'buf'
4052 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4054 *) CONF library reworked to become more general. A new CONF
4055 configuration file reader "class" is implemented as well as a
4056 new functions (NCONF_*, for "New CONF") to handle it. The now
4057 old CONF_* functions are still there, but are reimplemented to
4058 work in terms of the new functions. Also, a set of functions
4059 to handle the internal storage of the configuration data is
4060 provided to make it easier to write new configuration file
4061 reader "classes" (I can definitely see something reading a
4062 configuration file in XML format, for example), called _CONF_*,
4063 or "the configuration storage API"...
4065 The new configuration file reading functions are:
4067 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4068 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4070 NCONF_default, NCONF_WIN32
4072 NCONF_dump_fp, NCONF_dump_bio
4074 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4075 NCONF_new creates a new CONF object. This works in the same way
4076 as other interfaces in OpenSSL, like the BIO interface.
4077 NCONF_dump_* dump the internal storage of the configuration file,
4078 which is useful for debugging. All other functions take the same
4079 arguments as the old CONF_* functions wth the exception of the
4080 first that must be a `CONF *' instead of a `LHASH *'.
4082 To make it easer to use the new classes with the old CONF_* functions,
4083 the function CONF_set_default_method is provided.
4086 *) Add '-tls1' option to 'openssl ciphers', which was already
4087 mentioned in the documentation but had not been implemented.
4088 (This option is not yet really useful because even the additional
4089 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4092 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4093 OpenSSL-based applications) load shared libraries and bind to
4094 them in a portable way.
4095 [Geoff Thorpe, with contributions from Richard Levitte]
4097 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4099 *) Make sure _lrotl and _lrotr are only used with MSVC.
4101 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4102 (the default implementation of RAND_status).
4104 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4105 to '-clrext' (= clear extensions), as intended and documented.
4106 [Bodo Moeller; inconsistency pointed out by Michael Attili
4109 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4110 was larger than the MD block size.
4111 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4113 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4114 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4115 using the passed key: if the passed key was a private key the result
4116 of X509_print(), for example, would be to print out all the private key
4120 *) des_quad_cksum() byte order bug fix.
4121 [Ulf Möller, using the problem description in krb4-0.9.7, where
4122 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4124 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4126 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4128 *) For easily testing in shell scripts whether some command
4129 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4130 returns with exit code 0 iff no command of the given name is available.
4131 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4132 the output goes to stdout and nothing is printed to stderr.
4133 Additional arguments are always ignored.
4135 Since for each cipher there is a command of the same name,
4136 the 'no-cipher' compilation switches can be tested this way.
4138 ('openssl no-XXX' is not able to detect pseudo-commands such
4139 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
4142 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
4145 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
4146 is set; it will be thrown away anyway because each handshake creates
4148 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
4149 to parameters -- in previous versions (since OpenSSL 0.9.3) the
4150 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
4151 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
4154 *) New s_client option -ign_eof: EOF at stdin is ignored, and
4155 'Q' and 'R' lose their special meanings (quit/renegotiate).
4156 This is part of what -quiet does; unlike -quiet, -ign_eof
4157 does not suppress any output.
4160 *) Add compatibility options to the purpose and trust code. The
4161 purpose X509_PURPOSE_ANY is "any purpose" which automatically
4162 accepts a certificate or CA, this was the previous behaviour,
4163 with all the associated security issues.
4165 X509_TRUST_COMPAT is the old trust behaviour: only and
4166 automatically trust self signed roots in certificate store. A
4167 new trust setting X509_TRUST_DEFAULT is used to specify that
4168 a purpose has no associated trust setting and it should instead
4169 use the value in the default purpose.
4172 *) Fix the PKCS#8 DSA private key code so it decodes keys again
4173 and fix a memory leak.
4176 *) In util/mkerr.pl (which implements 'make errors'), preserve
4177 reason strings from the previous version of the .c file, as
4178 the default to have only downcase letters (and digits) in
4179 automatically generated reasons codes is not always appropriate.
4182 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
4183 using strerror. Previously, ERR_reason_error_string() returned
4184 library names as reason strings for SYSerr; but SYSerr is a special
4185 case where small numbers are errno values, not library numbers.
4188 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4189 converts DSA parameters into DH parameters. (When creating parameters,
4190 DSA_generate_parameters is used.)
4193 *) Include 'length' (recommended exponent length) in C code generated
4194 by 'openssl dhparam -C'.
4197 *) The second argument to set_label in perlasm was already being used
4198 so couldn't be used as a "file scope" flag. Moved to third argument
4202 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4203 instead of RAND_bytes for encryption IVs and salts.
4206 *) Include RAND_status() into RAND_METHOD instead of implementing
4207 it only for md_rand.c Otherwise replacing the PRNG by calling
4208 RAND_set_rand_method would be impossible.
4211 *) Don't let DSA_generate_key() enter an infinite loop if the random
4212 number generation fails.
4215 *) New 'rand' application for creating pseudo-random output.
4218 *) Added configuration support for Linux/IA64
4219 [Rolf Haberrecker <rolf@suse.de>]
4221 *) Assembler module support for Mingw32.
4224 *) Shared library support for HPUX (in shlib/).
4225 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4227 *) Shared library support for Solaris gcc.
4228 [Lutz Behnke <behnke@trustcenter.de>]
4230 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4232 *) PKCS7_encrypt() was adding text MIME headers twice because they
4233 were added manually and by SMIME_crlf_copy().
4236 *) In bntest.c don't call BN_rand with zero bits argument.
4237 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4239 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4240 case was implemented. This caused BN_div_recp() to fail occasionally.
4243 *) Add an optional second argument to the set_label() in the perl
4244 assembly language builder. If this argument exists and is set
4245 to 1 it signals that the assembler should use a symbol whose
4246 scope is the entire file, not just the current function. This
4247 is needed with MASM which uses the format label:: for this scope.
4248 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4250 *) Change the ASN1 types so they are typedefs by default. Before
4251 almost all types were #define'd to ASN1_STRING which was causing
4252 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4256 *) Change names of new functions to the new get1/get0 naming
4257 convention: After 'get1', the caller owns a reference count
4258 and has to call ..._free; 'get0' returns a pointer to some
4259 data structure without incrementing reference counters.
4260 (Some of the existing 'get' functions increment a reference
4261 counter, some don't.)
4262 Similarly, 'set1' and 'add1' functions increase reference
4263 counters or duplicate objects.
4266 *) Allow for the possibility of temp RSA key generation failure:
4267 the code used to assume it always worked and crashed on failure.
4270 *) Fix potential buffer overrun problem in BIO_printf().
4271 [Ulf Möller, using public domain code by Patrick Powell; problem
4272 pointed out by David Sacerdote <das33@cornell.edu>]
4274 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4275 RAND_egd() and RAND_status(). In the command line application,
4276 the EGD socket can be specified like a seed file using RANDFILE
4280 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4281 Some CAs (e.g. Verisign) distribute certificates in this form.
4284 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4285 list to exclude them. This means that no special compilation option
4286 is needed to use anonymous DH: it just needs to be included in the
4290 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4291 EVP_MD_type. The old functionality is available in a new macro called
4292 EVP_MD_md(). Change code that uses it and update docs.
4295 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4296 where the 'void *' argument is replaced by a function pointer argument.
4297 Previously 'void *' was abused to point to functions, which works on
4298 many platforms, but is not correct. As these functions are usually
4299 called by macros defined in OpenSSL header files, most source code
4300 should work without changes.
4303 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4304 sections with information on -D... compiler switches used for
4305 compiling the library so that applications can see them. To enable
4306 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4307 must be defined. E.g.,
4308 #define OPENSSL_ALGORITHM_DEFINES
4309 #include <openssl/opensslconf.h>
4310 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4311 [Richard Levitte, Ulf and Bodo Möller]
4313 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4317 *) Change the 'other' type in certificate aux info to a STACK_OF
4318 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4319 the required ASN1 format: arbitrary types determined by an OID.
4322 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4323 argument to 'req'. This is not because the function is newer or
4324 better than others it just uses the work 'NEW' in the certificate
4325 request header lines. Some software needs this.
4328 *) Reorganise password command line arguments: now passwords can be
4329 obtained from various sources. Delete the PEM_cb function and make
4330 it the default behaviour: i.e. if the callback is NULL and the
4331 usrdata argument is not NULL interpret it as a null terminated pass
4332 phrase. If usrdata and the callback are NULL then the pass phrase
4333 is prompted for as usual.
4336 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4337 the support is automatically enabled. The resulting binaries will
4338 autodetect the card and use it if present.
4339 [Ben Laurie and Compaq Inc.]
4341 *) Work around for Netscape hang bug. This sends certificate request
4342 and server done in one record. Since this is perfectly legal in the
4343 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4344 the bugs/SSLv3 entry for more info.
4347 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4350 *) Add -rand argument to smime and pkcs12 applications and read/write
4354 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4357 *) Add command line password options to the remaining applications.
4360 *) Bug fix for BN_div_recp() for numerators with an even number of
4364 *) More tests in bntest.c, and changed test_bn output.
4367 *) ./config recognizes MacOS X now.
4370 *) Bug fix for BN_div() when the first words of num and divsor are
4371 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4374 *) Add support for various broken PKCS#8 formats, and command line
4375 options to produce them.
4378 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4379 get temporary BIGNUMs from a BN_CTX.
4382 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4386 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4387 include a #define from the old name to the new. The original intent
4388 was that statically linked binaries could for example just call
4389 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4390 link with digests. This never worked becayse SSLeay_add_all_digests()
4391 and SSLeay_add_all_ciphers() were in the same source file so calling
4392 one would link with the other. They are now in separate source files.
4395 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4398 *) Use a less unusual form of the Miller-Rabin primality test (it used
4399 a binary algorithm for exponentiation integrated into the Miller-Rabin
4400 loop, our standard modexp algorithms are faster).
4403 *) Support for the EBCDIC character set completed.
4404 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4406 *) Source code cleanups: use const where appropriate, eliminate casts,
4407 use void * instead of char * in lhash.
4410 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4411 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4412 this the server could overwrite ephemeral keys that the client
4416 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4417 using 50 iterations of the Rabin-Miller test.
4419 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4420 iterations of the Rabin-Miller test as required by the appendix
4421 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4422 As BN_is_prime_fasttest includes trial division, DSA parameter
4423 generation becomes much faster.
4425 This implies a change for the callback functions in DSA_is_prime
4426 and DSA_generate_parameters: The callback function is called once
4427 for each positive witness in the Rabin-Miller test, not just
4428 occasionally in the inner loop; and the parameters to the
4429 callback function now provide an iteration count for the outer
4430 loop rather than for the current invocation of the inner loop.
4431 DSA_generate_parameters additionally can call the callback
4432 function with an 'iteration count' of -1, meaning that a
4433 candidate has passed the trial division test (when q is generated
4434 from an application-provided seed, trial division is skipped).
4437 *) New function BN_is_prime_fasttest that optionally does trial
4438 division before starting the Rabin-Miller test and has
4439 an additional BN_CTX * argument (whereas BN_is_prime always
4440 has to allocate at least one BN_CTX).
4441 'callback(1, -1, cb_arg)' is called when a number has passed the
4442 trial division stage.
4445 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4449 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4452 *) New function BN_pseudo_rand().
4455 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4456 bignum version of BN_from_montgomery() with the working code from
4457 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4461 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4462 made it impossible to use the same SSL_SESSION data structure in
4463 SSL2 clients in multiple threads.
4466 *) The return value of RAND_load_file() no longer counts bytes obtained
4467 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4468 to seed the PRNG (previously an explicit byte count was required).
4469 [Ulf Möller, Bodo Möller]
4471 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4472 used (char *) instead of (void *) and had casts all over the place.
4475 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4478 *) Retain source code compatibility for BN_prime_checks macro:
4479 BN_is_prime(..., BN_prime_checks, ...) now uses
4480 BN_prime_checks_for_size to determine the appropriate number of
4481 Rabin-Miller iterations.
4484 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4485 DH_CHECK_P_NOT_SAFE_PRIME.
4486 (Check if this is true? OpenPGP calls them "strong".)
4489 *) Merge the functionality of "dh" and "gendh" programs into a new program
4490 "dhparam". The old programs are retained for now but will handle DH keys
4491 (instead of parameters) in future.
4494 *) Make the ciphers, s_server and s_client programs check the return values
4495 when a new cipher list is set.
4498 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4499 ciphers. Before when the 56bit ciphers were enabled the sorting was
4502 The syntax for the cipher sorting has been extended to support sorting by
4503 cipher-strength (using the strength_bits hard coded in the tables).
4504 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4506 Fix a bug in the cipher-command parser: when supplying a cipher command
4507 string with an "undefined" symbol (neither command nor alphanumeric
4508 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4509 an error is flagged.
4511 Due to the strength-sorting extension, the code of the
4512 ssl_create_cipher_list() function was completely rearranged. I hope that
4513 the readability was also increased :-)
4514 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4516 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4517 for the first serial number and places 2 in the serial number file. This
4518 avoids problems when the root CA is created with serial number zero and
4519 the first user certificate has the same issuer name and serial number
4523 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4524 the new code. Add documentation for this stuff.
4527 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4528 X509_*() to X509at_*() on the grounds that they don't handle X509
4529 structures and behave in an analagous way to the X509v3 functions:
4530 they shouldn't be called directly but wrapper functions should be used
4533 So we also now have some wrapper functions that call the X509at functions
4534 when passed certificate requests. (TO DO: similar things can be done with
4535 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4536 things. Some of these need some d2i or i2d and print functionality
4537 because they handle more complex structures.)
4540 *) Add missing #ifndefs that caused missing symbols when building libssl
4541 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4542 NO_RSA in ssl/s2*.c.
4543 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4545 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4546 has a return value which indicates the quality of the random data
4547 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4548 error queue. New function RAND_pseudo_bytes() generates output that is
4549 guaranteed to be unique but not unpredictable. RAND_add is like
4550 RAND_seed, but takes an extra argument for an entropy estimate
4551 (RAND_seed always assumes full entropy).
4554 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4555 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4556 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4557 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4558 false-positive rate of at most 2^-80 for random input.
4561 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4564 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4565 in the 0.9.5 release), this returns the chain
4566 from an X509_CTX structure with a dup of the stack and all
4567 the X509 reference counts upped: so the stack will exist
4568 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4571 Also make SSL_SESSION_print() print out the verify return
4575 *) Add manpage for the pkcs12 command. Also change the default
4576 behaviour so MAC iteration counts are used unless the new
4577 -nomaciter option is used. This improves file security and
4578 only older versions of MSIE (4.0 for example) need it.
4581 *) Honor the no-xxx Configure options when creating .DEF files.
4584 *) Add PKCS#10 attributes to field table: challengePassword,
4585 unstructuredName and unstructuredAddress. These are taken from
4586 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4587 international characters are used.
4589 More changes to X509_ATTRIBUTE code: allow the setting of types
4590 based on strings. Remove the 'loc' parameter when adding
4591 attributes because these will be a SET OF encoding which is sorted
4595 *) Initial changes to the 'req' utility to allow request generation
4596 automation. This will allow an application to just generate a template
4597 file containing all the field values and have req construct the
4600 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4601 used all over the place including certificate requests and PKCS#7
4602 structures. They are currently handled manually where necessary with
4603 some primitive wrappers for PKCS#7. The new functions behave in a
4604 manner analogous to the X509 extension functions: they allow
4605 attributes to be looked up by NID and added.
4607 Later something similar to the X509V3 code would be desirable to
4608 automatically handle the encoding, decoding and printing of the
4609 more complex types. The string types like challengePassword can
4610 be handled by the string table functions.
4612 Also modified the multi byte string table handling. Now there is
4613 a 'global mask' which masks out certain types. The table itself
4614 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4615 is useful when for example there is only one permissible type
4616 (as in countryName) and using the mask might result in no valid
4620 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4621 SSL_get_peer_finished to allow applications to obtain the latest
4622 Finished messages sent to the peer or expected from the peer,
4623 respectively. (SSL_get_peer_finished is usually the Finished message
4624 actually received from the peer, otherwise the protocol will be aborted.)
4626 As the Finished message are message digests of the complete handshake
4627 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4628 be used for external authentication procedures when the authentication
4629 provided by SSL/TLS is not desired or is not enough.
4632 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4633 the host supports BWX extension and if Compaq C is present on the
4634 $PATH. Just exploiting of the BWX extension results in 20-30%
4635 performance kick for some algorithms, e.g. DES and RC4 to mention
4636 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4640 *) Add support for MS "fast SGC". This is arguably a violation of the
4641 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4642 weak crypto and after checking the certificate is SGC a second one
4643 with strong crypto. MS SGC stops the first handshake after receiving
4644 the server certificate message and sends a second client hello. Since
4645 a server will typically do all the time consuming operations before
4646 expecting any further messages from the client (server key exchange
4647 is the most expensive) there is little difference between the two.
4649 To get OpenSSL to support MS SGC we have to permit a second client
4650 hello message after we have sent server done. In addition we have to
4651 reset the MAC if we do get this second client hello.
4654 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4655 if a DER encoded private key is RSA or DSA traditional format. Changed
4656 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4657 format DER encoded private key. Newer code should use PKCS#8 format which
4658 has the key type encoded in the ASN1 structure. Added DER private key
4659 support to pkcs8 application.
4662 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4663 ciphersuites has been selected (as required by the SSL 3/TLS 1
4664 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4665 is set, we interpret this as a request to violate the specification
4666 (the worst that can happen is a handshake failure, and 'correct'
4667 behaviour would result in a handshake failure anyway).
4670 *) In SSL_CTX_add_session, take into account that there might be multiple
4671 SSL_SESSION structures with the same session ID (e.g. when two threads
4672 concurrently obtain them from an external cache).
4673 The internal cache can handle only one SSL_SESSION with a given ID,
4674 so if there's a conflict, we now throw out the old one to achieve
4678 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4679 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4680 some routines that use cipher OIDs: some ciphers do not have OIDs
4681 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4685 *) Simplify the trust setting structure and code. Now we just have
4686 two sequences of OIDs for trusted and rejected settings. These will
4687 typically have values the same as the extended key usage extension
4688 and any application specific purposes.
4690 The trust checking code now has a default behaviour: it will just
4691 check for an object with the same NID as the passed id. Functions can
4692 be provided to override either the default behaviour or the behaviour
4693 for a given id. SSL client, server and email already have functions
4694 in place for compatibility: they check the NID and also return "trusted"
4695 if the certificate is self signed.
4698 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
4699 traditional format into an EVP_PKEY structure.
4702 *) Add a password callback function PEM_cb() which either prompts for
4703 a password if usr_data is NULL or otherwise assumes it is a null
4704 terminated password. Allow passwords to be passed on command line
4705 environment or config files in a few more utilities.
4708 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
4709 keys. Add some short names for PKCS#8 PBE algorithms and allow them
4710 to be specified on the command line for the pkcs8 and pkcs12 utilities.
4711 Update documentation.
4714 *) Support for ASN1 "NULL" type. This could be handled before by using
4715 ASN1_TYPE but there wasn't any function that would try to read a NULL
4716 and produce an error if it couldn't. For compatibility we also have
4717 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
4718 don't allocate anything because they don't need to.
4721 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
4723 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
4725 *) Rebuild of the memory allocation routines used by OpenSSL code and
4726 possibly others as well. The purpose is to make an interface that
4727 provide hooks so anyone can build a separate set of allocation and
4728 deallocation routines to be used by OpenSSL, for example memory
4729 pool implementations, or something else, which was previously hard
4730 since Malloc(), Realloc() and Free() were defined as macros having
4731 the values malloc, realloc and free, respectively (except for Win32
4732 compilations). The same is provided for memory debugging code.
4733 OpenSSL already comes with functionality to find memory leaks, but
4734 this gives people a chance to debug other memory problems.
4736 With these changes, a new set of functions and macros have appeared:
4738 CRYPTO_set_mem_debug_functions() [F]
4739 CRYPTO_get_mem_debug_functions() [F]
4740 CRYPTO_dbg_set_options() [F]
4741 CRYPTO_dbg_get_options() [F]
4742 CRYPTO_malloc_debug_init() [M]
4744 The memory debug functions are NULL by default, unless the library
4745 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
4746 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
4747 gives the standard debugging functions that come with OpenSSL) or
4748 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
4749 provided by the library user) must be used. When the standard
4750 debugging functions are used, CRYPTO_dbg_set_options can be used to
4751 request additional information:
4752 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
4753 the CRYPTO_MDEBUG_xxx macro when compiling the library.
4755 Also, things like CRYPTO_set_mem_functions will always give the
4756 expected result (the new set of functions is used for allocation
4757 and deallocation) at all times, regardless of platform and compiler
4760 To finish it up, some functions that were never use in any other
4761 way than through macros have a new API and new semantic:
4764 CRYPTO_dbg_realloc()
4767 All macros of value have retained their old syntax.
4768 [Richard Levitte and Bodo Moeller]
4770 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
4771 ordering of SMIMECapabilities wasn't in "strength order" and there
4772 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
4776 *) Some ASN1 types with illegal zero length encoding (INTEGER,
4777 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
4778 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
4780 *) Merge in my S/MIME library for OpenSSL. This provides a simple
4781 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
4782 functionality to handle multipart/signed properly) and a utility
4783 called 'smime' to call all this stuff. This is based on code I
4784 originally wrote for Celo who have kindly allowed it to be
4785 included in OpenSSL.
4788 *) Add variants des_set_key_checked and des_set_key_unchecked of
4789 des_set_key (aka des_key_sched). Global variable des_check_key
4790 decides which of these is called by des_set_key; this way
4791 des_check_key behaves as it always did, but applications and
4792 the library itself, which was buggy for des_check_key == 1,
4793 have a cleaner way to pick the version they need.
4796 *) New function PKCS12_newpass() which changes the password of a
4800 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
4801 dynamic mix. In both cases the ids can be used as an index into the
4802 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
4803 functions so they accept a list of the field values and the
4804 application doesn't need to directly manipulate the X509_TRUST
4808 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
4812 *) Modify the way the V3 extension code looks up extensions. This now
4813 works in a similar way to the object code: we have some "standard"
4814 extensions in a static table which is searched with OBJ_bsearch()
4815 and the application can add dynamic ones if needed. The file
4816 crypto/x509v3/ext_dat.h now has the info: this file needs to be
4817 updated whenever a new extension is added to the core code and kept
4818 in ext_nid order. There is a simple program 'tabtest.c' which checks
4819 this. New extensions are not added too often so this file can readily
4820 be maintained manually.
4822 There are two big advantages in doing things this way. The extensions
4823 can be looked up immediately and no longer need to be "added" using
4824 X509V3_add_standard_extensions(): this function now does nothing.
4825 [Side note: I get *lots* of email saying the extension code doesn't
4826 work because people forget to call this function]
4827 Also no dynamic allocation is done unless new extensions are added:
4828 so if we don't add custom extensions there is no need to call
4829 X509V3_EXT_cleanup().
4832 *) Modify enc utility's salting as follows: make salting the default. Add a
4833 magic header, so unsalted files fail gracefully instead of just decrypting
4834 to garbage. This is because not salting is a big security hole, so people
4835 should be discouraged from doing it.
4838 *) Fixes and enhancements to the 'x509' utility. It allowed a message
4839 digest to be passed on the command line but it only used this
4840 parameter when signing a certificate. Modified so all relevant
4841 operations are affected by the digest parameter including the
4842 -fingerprint and -x509toreq options. Also -x509toreq choked if a
4843 DSA key was used because it didn't fix the digest.
4846 *) Initial certificate chain verify code. Currently tests the untrusted
4847 certificates for consistency with the verify purpose (which is set
4848 when the X509_STORE_CTX structure is set up) and checks the pathlength.
4850 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
4851 this is because it will reject chains with invalid extensions whereas
4852 every previous version of OpenSSL and SSLeay made no checks at all.
4854 Trust code: checks the root CA for the relevant trust settings. Trust
4855 settings have an initial value consistent with the verify purpose: e.g.
4856 if the verify purpose is for SSL client use it expects the CA to be
4857 trusted for SSL client use. However the default value can be changed to
4858 permit custom trust settings: one example of this would be to only trust
4859 certificates from a specific "secure" set of CAs.
4861 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
4862 which should be used for version portability: especially since the
4863 verify structure is likely to change more often now.
4865 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
4866 to set them. If not set then assume SSL clients will verify SSL servers
4869 Two new options to the verify program: -untrusted allows a set of
4870 untrusted certificates to be passed in and -purpose which sets the
4871 intended purpose of the certificate. If a purpose is set then the
4872 new chain verify code is used to check extension consistency.
4875 *) Support for the authority information access extension.
4878 *) Modify RSA and DSA PEM read routines to transparently handle
4879 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
4880 public keys in a format compatible with certificate
4881 SubjectPublicKeyInfo structures. Unfortunately there were already
4882 functions called *_PublicKey_* which used various odd formats so
4883 these are retained for compatibility: however the DSA variants were
4884 never in a public release so they have been deleted. Changed dsa/rsa
4885 utilities to handle the new format: note no releases ever handled public
4886 keys so we should be OK.
4888 The primary motivation for this change is to avoid the same fiasco
4889 that dogs private keys: there are several incompatible private key
4890 formats some of which are standard and some OpenSSL specific and
4891 require various evil hacks to allow partial transparent handling and
4892 even then it doesn't work with DER formats. Given the option anything
4893 other than PKCS#8 should be dumped: but the other formats have to
4894 stay in the name of compatibility.
4896 With public keys and the benefit of hindsight one standard format
4897 is used which works with EVP_PKEY, RSA or DSA structures: though
4898 it clearly returns an error if you try to read the wrong kind of key.
4900 Added a -pubkey option to the 'x509' utility to output the public key.
4901 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
4902 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
4903 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
4904 that do the same as the EVP_PKEY_assign_*() except they up the
4905 reference count of the added key (they don't "swallow" the
4909 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
4910 CRLs would fail if the file contained no certificates or no CRLs:
4911 added a new function to read in both types and return the number
4912 read: this means that if none are read it will be an error. The
4913 DER versions of the certificate and CRL reader would always fail
4914 because it isn't possible to mix certificates and CRLs in DER format
4915 without choking one or the other routine. Changed this to just read
4916 a certificate: this is the best we can do. Also modified the code
4917 in apps/verify.c to take notice of return codes: it was previously
4918 attempting to read in certificates from NULL pointers and ignoring
4919 any errors: this is one reason why the cert and CRL reader seemed
4920 to work. It doesn't check return codes from the default certificate
4921 routines: these may well fail if the certificates aren't installed.
4924 *) Code to support otherName option in GeneralName.
4927 *) First update to verify code. Change the verify utility
4928 so it warns if it is passed a self signed certificate:
4929 for consistency with the normal behaviour. X509_verify
4930 has been modified to it will now verify a self signed
4931 certificate if *exactly* the same certificate appears
4932 in the store: it was previously impossible to trust a
4933 single self signed certificate. This means that:
4934 openssl verify ss.pem
4935 now gives a warning about a self signed certificate but
4936 openssl verify -CAfile ss.pem ss.pem
4940 *) For servers, store verify_result in SSL_SESSION data structure
4941 (and add it to external session representation).
4942 This is needed when client certificate verifications fails,
4943 but an application-provided verification callback (set by
4944 SSL_CTX_set_cert_verify_callback) allows accepting the session
4945 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
4946 but returns 1): When the session is reused, we have to set
4947 ssl->verify_result to the appropriate error code to avoid
4949 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
4951 *) Fix a bug in the new PKCS#7 code: it didn't consider the
4952 case in PKCS7_dataInit() where the signed PKCS7 structure
4953 didn't contain any existing data because it was being created.
4954 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
4956 *) Add a salt to the key derivation routines in enc.c. This
4957 forms the first 8 bytes of the encrypted file. Also add a
4958 -S option to allow a salt to be input on the command line.
4961 *) New function X509_cmp(). Oddly enough there wasn't a function
4962 to compare two certificates. We do this by working out the SHA1
4963 hash and comparing that. X509_cmp() will be needed by the trust
4967 *) SSL_get1_session() is like SSL_get_session(), but increments
4968 the reference count in the SSL_SESSION returned.
4969 [Geoff Thorpe <geoff@eu.c2.net>]
4971 *) Fix for 'req': it was adding a null to request attributes.
4972 Also change the X509_LOOKUP and X509_INFO code to handle
4973 certificate auxiliary information.
4976 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
4980 *) Add the possibility to add extra information to the memory leak
4981 detecting output, to form tracebacks, showing from where each
4982 allocation was originated: CRYPTO_push_info("constant string") adds
4983 the string plus current file name and line number to a per-thread
4984 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
4985 is like calling CYRPTO_pop_info() until the stack is empty.
4986 Also updated memory leak detection code to be multi-thread-safe.
4989 *) Add options -text and -noout to pkcs7 utility and delete the
4990 encryption options which never did anything. Update docs.
4993 *) Add options to some of the utilities to allow the pass phrase
4994 to be included on either the command line (not recommended on
4995 OSes like Unix) or read from the environment. Update the
4996 manpages and fix a few bugs.
4999 *) Add a few manpages for some of the openssl commands.
5002 *) Fix the -revoke option in ca. It was freeing up memory twice,
5003 leaking and not finding already revoked certificates.
5006 *) Extensive changes to support certificate auxiliary information.
5007 This involves the use of X509_CERT_AUX structure and X509_AUX
5008 functions. An X509_AUX function such as PEM_read_X509_AUX()
5009 can still read in a certificate file in the usual way but it
5010 will also read in any additional "auxiliary information". By
5011 doing things this way a fair degree of compatibility can be
5012 retained: existing certificates can have this information added
5013 using the new 'x509' options.
5015 Current auxiliary information includes an "alias" and some trust
5016 settings. The trust settings will ultimately be used in enhanced
5017 certificate chain verification routines: currently a certificate
5018 can only be trusted if it is self signed and then it is trusted
5022 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5023 The problem was that one of the replacement routines had not been working
5024 since SSLeay releases. For now the offending routine has been replaced
5025 with non-optimised assembler. Even so, this now gives around 95%
5026 performance improvement for 1024 bit RSA signs.
5029 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5030 handling. Most clients have the effective key size in bits equal to
5031 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5032 A few however don't do this and instead use the size of the decrypted key
5033 to determine the RC2 key length and the AlgorithmIdentifier to determine
5034 the effective key length. In this case the effective key length can still
5035 be 40 bits but the key length can be 168 bits for example. This is fixed
5036 by manually forcing an RC2 key into the EVP_PKEY structure because the
5037 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5038 the key length and effective key length are equal.
5041 *) Add a bunch of functions that should simplify the creation of
5042 X509_NAME structures. Now you should be able to do:
5043 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5044 and have it automatically work out the correct field type and fill in
5045 the structures. The more adventurous can try:
5046 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5047 and it will (hopefully) work out the correct multibyte encoding.
5050 *) Change the 'req' utility to use the new field handling and multibyte
5051 copy routines. Before the DN field creation was handled in an ad hoc
5052 way in req, ca, and x509 which was rather broken and didn't support
5053 BMPStrings or UTF8Strings. Since some software doesn't implement
5054 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5055 using the dirstring_type option. See the new comment in the default
5056 openssl.cnf for more info.
5059 *) Make crypto/rand/md_rand.c more robust:
5060 - Assure unique random numbers after fork().
5061 - Make sure that concurrent threads access the global counter and
5062 md serializably so that we never lose entropy in them
5063 or use exactly the same state in multiple threads.
5064 Access to the large state is not always serializable because
5065 the additional locking could be a performance killer, and
5066 md should be large enough anyway.
5069 *) New file apps/app_rand.c with commonly needed functionality
5070 for handling the random seed file.
5072 Use the random seed file in some applications that previously did not:
5074 dsaparam -genkey (which also ignored its '-rand' option),
5077 x509 (when signing).
5078 Except on systems with /dev/urandom, it is crucial to have a random
5079 seed file at least for key creation, DSA signing, and for DH exchanges;
5080 for RSA signatures we could do without one.
5082 gendh and gendsa (unlike genrsa) used to read only the first byte
5083 of each file listed in the '-rand' option. The function as previously
5084 found in genrsa is now in app_rand.c and is used by all programs
5085 that support '-rand'.
5088 *) In RAND_write_file, use mode 0600 for creating files;
5089 don't just chmod when it may be too late.
5092 *) Report an error from X509_STORE_load_locations
5093 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5096 *) New function ASN1_mbstring_copy() this copies a string in either
5097 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5098 into an ASN1_STRING type. A mask of permissible types is passed
5099 and it chooses the "minimal" type to use or an error if not type
5103 *) Add function equivalents to the various macros in asn1.h. The old
5104 macros are retained with an M_ prefix. Code inside the library can
5105 use the M_ macros. External code (including the openssl utility)
5106 should *NOT* in order to be "shared library friendly".
5109 *) Add various functions that can check a certificate's extensions
5110 to see if it usable for various purposes such as SSL client,
5111 server or S/MIME and CAs of these types. This is currently
5112 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5113 verification. Also added a -purpose flag to x509 utility to
5114 print out all the purposes.
5117 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5121 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5122 for, obtain and decode and extension and obtain its critical flag.
5123 This allows all the necessary extension code to be handled in a
5124 single function call.
5127 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5128 platforms. See crypto/rc4/rc4_enc.c for further details.
5131 *) New -noout option to asn1parse. This causes no output to be produced
5132 its main use is when combined with -strparse and -out to extract data
5133 from a file (which may not be in ASN.1 format).
5136 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
5137 when producing the local key id.
5138 [Richard Levitte <levitte@stacken.kth.se>]
5140 *) New option -dhparam in s_server. This allows a DH parameter file to be
5141 stated explicitly. If it is not stated then it tries the first server
5142 certificate file. The previous behaviour hard coded the filename
5146 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
5147 a public key to be input or output. For example:
5148 openssl rsa -in key.pem -pubout -out pubkey.pem
5149 Also added necessary DSA public key functions to handle this.
5152 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
5153 in the message. This was handled by allowing
5154 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
5155 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
5157 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
5158 to the end of the strings whereas this didn't. This would cause problems
5159 if strings read with d2i_ASN1_bytes() were later modified.
5160 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
5162 *) Fix for base64 decode bug. When a base64 bio reads only one line of
5163 data and it contains EOF it will end up returning an error. This is
5164 caused by input 46 bytes long. The cause is due to the way base64
5165 BIOs find the start of base64 encoded data. They do this by trying a
5166 trial decode on each line until they find one that works. When they
5167 do a flag is set and it starts again knowing it can pass all the
5168 data directly through the decoder. Unfortunately it doesn't reset
5169 the context it uses. This means that if EOF is reached an attempt
5170 is made to pass two EOFs through the context and this causes the
5171 resulting error. This can also cause other problems as well. As is
5172 usual with these problems it takes *ages* to find and the fix is
5173 trivial: move one line.
5174 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
5176 *) Ugly workaround to get s_client and s_server working under Windows. The
5177 old code wouldn't work because it needed to select() on sockets and the
5178 tty (for keypresses and to see if data could be written). Win32 only
5179 supports select() on sockets so we select() with a 1s timeout on the
5180 sockets and then see if any characters are waiting to be read, if none
5181 are present then we retry, we also assume we can always write data to
5182 the tty. This isn't nice because the code then blocks until we've
5183 received a complete line of data and it is effectively polling the
5184 keyboard at 1s intervals: however it's quite a bit better than not
5185 working at all :-) A dedicated Windows application might handle this
5186 with an event loop for example.
5189 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5190 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5191 will be called when RSA_sign() and RSA_verify() are used. This is useful
5192 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5193 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5194 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5195 This necessitated the support of an extra signature type NID_md5_sha1
5196 for SSL signatures and modifications to the SSL library to use it instead
5197 of calling RSA_public_decrypt() and RSA_private_encrypt().
5200 *) Add new -verify -CAfile and -CApath options to the crl program, these
5201 will lookup a CRL issuers certificate and verify the signature in a
5202 similar way to the verify program. Tidy up the crl program so it
5203 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5204 less strict. It will now permit CRL extensions even if it is not
5205 a V2 CRL: this will allow it to tolerate some broken CRLs.
5208 *) Initialize all non-automatic variables each time one of the openssl
5209 sub-programs is started (this is necessary as they may be started
5210 multiple times from the "OpenSSL>" prompt).
5211 [Lennart Bang, Bodo Moeller]
5213 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5214 removing all other RSA functionality (this is what NO_RSA does). This
5215 is so (for example) those in the US can disable those operations covered
5216 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5220 *) Non-copying interface to BIO pairs.
5221 (still largely untested)
5224 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5225 ASCII string. This was handled independently in various places before.
5228 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5229 UTF8 strings a character at a time.
5232 *) Use client_version from client hello to select the protocol
5233 (s23_srvr.c) and for RSA client key exchange verification
5234 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5237 *) Add various utility functions to handle SPKACs, these were previously
5238 handled by poking round in the structure internals. Added new function
5239 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5240 print, verify and generate SPKACs. Based on an original idea from
5241 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5244 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5247 *) Allow the config file extension section to be overwritten on the
5248 command line. Based on an original idea from Massimiliano Pala
5249 <madwolf@comune.modena.it>. The new option is called -extensions
5250 and can be applied to ca, req and x509. Also -reqexts to override
5251 the request extensions in req and -crlexts to override the crl extensions
5255 *) Add new feature to the SPKAC handling in ca. Now you can include
5256 the same field multiple times by preceding it by "XXXX." for example:
5259 this is the same syntax as used in the req config file.
5262 *) Allow certificate extensions to be added to certificate requests. These
5263 are specified in a 'req_extensions' option of the req section of the
5264 config file. They can be printed out with the -text option to req but
5265 are otherwise ignored at present.
5268 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5269 data read consists of only the final block it would not decrypted because
5270 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5271 A misplaced 'break' also meant the decrypted final block might not be
5272 copied until the next read.
5275 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5276 a few extra parameters to the DH structure: these will be useful if
5277 for example we want the value of 'q' or implement X9.42 DH.
5280 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5281 provides hooks that allow the default DSA functions or functions on a
5282 "per key" basis to be replaced. This allows hardware acceleration and
5283 hardware key storage to be handled without major modification to the
5284 library. Also added low level modexp hooks and CRYPTO_EX structure and
5285 associated functions.
5288 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5289 as "read only": it can't be written to and the buffer it points to will
5290 not be freed. Reading from a read only BIO is much more efficient than
5291 a normal memory BIO. This was added because there are several times when
5292 an area of memory needs to be read from a BIO. The previous method was
5293 to create a memory BIO and write the data to it, this results in two
5294 copies of the data and an O(n^2) reading algorithm. There is a new
5295 function BIO_new_mem_buf() which creates a read only memory BIO from
5296 an area of memory. Also modified the PKCS#7 routines to use read only
5300 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5301 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5302 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5303 but a retry condition occured while trying to read the rest.
5306 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5307 NID_pkcs7_encrypted by default: this was wrong since this should almost
5308 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5309 the encrypted data type: this is a more sensible place to put it and it
5310 allows the PKCS#12 code to be tidied up that duplicated this
5314 *) Changed obj_dat.pl script so it takes its input and output files on
5315 the command line. This should avoid shell escape redirection problems
5319 *) Initial support for certificate extension requests, these are included
5320 in things like Xenroll certificate requests. Included functions to allow
5321 extensions to be obtained and added.
5324 *) -crlf option to s_client and s_server for sending newlines as
5325 CRLF (as required by many protocols).
5328 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5330 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5331 [Ralf S. Engelschall]
5333 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5334 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5336 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5340 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5341 DH parameters/keys (q is lost during that conversion, but the resulting
5342 DH parameters contain its length).
5344 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5345 much faster than DH_generate_parameters (which creates parameters
5346 where p = 2*q + 1), and also the smaller q makes DH computations
5347 much more efficient (160-bit exponentiation instead of 1024-bit
5348 exponentiation); so this provides a convenient way to support DHE
5349 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5350 utter importance to use
5351 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5353 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5354 when such DH parameters are used, because otherwise small subgroup
5355 attacks may become possible!
5358 *) Avoid memory leak in i2d_DHparams.
5361 *) Allow the -k option to be used more than once in the enc program:
5362 this allows the same encrypted message to be read by multiple recipients.
5365 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5366 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5367 it will always use the numerical form of the OID, even if it has a short
5371 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5372 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5373 otherwise bn_mod_exp was called. In the case of hardware keys for example
5374 no private key components need be present and it might store extra data
5375 in the RSA structure, which cannot be accessed from bn_mod_exp.
5376 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5377 private key operations.
5380 *) Added support for SPARC Linux.
5383 *) pem_password_cb function type incompatibly changed from
5384 typedef int pem_password_cb(char *buf, int size, int rwflag);
5386 ....(char *buf, int size, int rwflag, void *userdata);
5387 so that applications can pass data to their callbacks:
5388 The PEM[_ASN1]_{read,write}... functions and macros now take an
5389 additional void * argument, which is just handed through whenever
5390 the password callback is called.
5391 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5393 New function SSL_CTX_set_default_passwd_cb_userdata.
5395 Compatibility note: As many C implementations push function arguments
5396 onto the stack in reverse order, the new library version is likely to
5397 interoperate with programs that have been compiled with the old
5398 pem_password_cb definition (PEM_whatever takes some data that
5399 happens to be on the stack as its last argument, and the callback
5400 just ignores this garbage); but there is no guarantee whatsoever that
5403 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5404 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5405 problems not only on Windows, but also on some Unix platforms.
5406 To avoid problematic command lines, these definitions are now in an
5407 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5408 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5411 *) MIPS III/IV assembler module is reimplemented.
5414 *) More DES library cleanups: remove references to srand/rand and
5415 delete an unused file.
5418 *) Add support for the the free Netwide assembler (NASM) under Win32,
5419 since not many people have MASM (ml) and it can be hard to obtain.
5420 This is currently experimental but it seems to work OK and pass all
5421 the tests. Check out INSTALL.W32 for info.
5424 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5425 without temporary keys kept an extra copy of the server key,
5426 and connections with temporary keys did not free everything in case
5430 *) New function RSA_check_key and new openssl rsa option -check
5431 for verifying the consistency of RSA keys.
5432 [Ulf Moeller, Bodo Moeller]
5434 *) Various changes to make Win32 compile work:
5435 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5436 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5437 comparison" warnings.
5438 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5441 *) Add a debugging option to PKCS#5 v2 key generation function: when
5442 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5443 derived keys are printed to stderr.
5446 *) Copy the flags in ASN1_STRING_dup().
5447 [Roman E. Pavlov <pre@mo.msk.ru>]
5449 *) The x509 application mishandled signing requests containing DSA
5450 keys when the signing key was also DSA and the parameters didn't match.
5452 It was supposed to omit the parameters when they matched the signing key:
5453 the verifying software was then supposed to automatically use the CA's
5454 parameters if they were absent from the end user certificate.
5456 Omitting parameters is no longer recommended. The test was also
5457 the wrong way round! This was probably due to unusual behaviour in
5458 EVP_cmp_parameters() which returns 1 if the parameters match.
5459 This meant that parameters were omitted when they *didn't* match and
5460 the certificate was useless. Certificates signed with 'ca' didn't have
5462 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5464 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5465 The interface is as follows:
5466 Applications can use
5467 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5468 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5469 "off" is now the default.
5470 The library internally uses
5471 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5472 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5473 to disable memory-checking temporarily.
5475 Some inconsistent states that previously were possible (and were
5476 even the default) are now avoided.
5478 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5479 with each memory chunk allocated; this is occasionally more helpful
5480 than just having a counter.
5482 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5484 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5488 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5489 which largely parallels "options", but is for changing API behaviour,
5490 whereas "options" are about protocol behaviour.
5491 Initial "mode" flags are:
5493 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5494 a single record has been written.
5495 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5496 retries use the same buffer location.
5497 (But all of the contents must be
5501 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5504 *) Fix problems with no-hmac etc.
5505 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5507 *) New functions RSA_get_default_method(), RSA_set_method() and
5508 RSA_get_method(). These allows replacement of RSA_METHODs without having
5509 to mess around with the internals of an RSA structure.
5512 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5513 Also really enable memory leak checks in openssl.c and in some
5515 [Chad C. Mulligan, Bodo Moeller]
5517 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5518 up the length of negative integers. This has now been simplified to just
5519 store the length when it is first determined and use it later, rather
5520 than trying to keep track of where data is copied and updating it to
5522 [Steve Henson, reported by Brien Wheeler
5523 <bwheeler@authentica-security.com>]
5525 *) Add a new function PKCS7_signatureVerify. This allows the verification
5526 of a PKCS#7 signature but with the signing certificate passed to the
5527 function itself. This contrasts with PKCS7_dataVerify which assumes the
5528 certificate is present in the PKCS#7 structure. This isn't always the
5529 case: certificates can be omitted from a PKCS#7 structure and be
5530 distributed by "out of band" means (such as a certificate database).
5533 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5534 function prototypes in pem.h, also change util/mkdef.pl to add the
5535 necessary function names.
5538 *) mk1mf.pl (used by Windows builds) did not properly read the
5539 options set by Configure in the top level Makefile, and Configure
5540 was not even able to write more than one option correctly.
5541 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5544 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5545 file to be loaded from a BIO or FILE pointer. The BIO version will
5546 for example allow memory BIOs to contain config info.
5549 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5550 Whoever hopes to achieve shared-library compatibility across versions
5551 must use this, not the compile-time macro.
5552 (Exercise 0.9.4: Which is the minimum library version required by
5554 Note: All this applies only to multi-threaded programs, others don't
5558 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5559 through a BIO pair triggered the default case, i.e.
5560 SSLerr(...,SSL_R_UNKNOWN_STATE).
5563 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5564 can use the SSL library even if none of the specific BIOs is
5568 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5569 for the encoded length.
5570 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5572 *) Add initial documentation of the X509V3 functions.
5575 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5576 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5577 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5578 secure PKCS#8 private key format with a high iteration count.
5581 *) Fix determination of Perl interpreter: A perl or perl5
5582 _directory_ in $PATH was also accepted as the interpreter.
5583 [Ralf S. Engelschall]
5585 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5586 wrong with it but it was very old and did things like calling
5587 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5591 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5592 to use the new extension code.
5595 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5596 with macros. This should make it easier to change their form, add extra
5597 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5601 *) Add to configuration table a new entry that can specify an alternative
5602 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5603 according to Mark Crispin <MRC@Panda.COM>.
5607 *) DES CBC did not update the IV. Weird.
5610 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5611 Changing the behaviour of the former might break existing programs --
5612 where IV updating is needed, des_ncbc_encrypt can be used.
5615 *) When bntest is run from "make test" it drives bc to check its
5616 calculations, as well as internally checking them. If an internal check
5617 fails, it needs to cause bc to give a non-zero result or make test carries
5618 on without noticing the failure. Fixed.
5621 *) DES library cleanups.
5624 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5625 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5626 ciphers. NOTE: although the key derivation function has been verified
5627 against some published test vectors it has not been extensively tested
5628 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5632 *) Instead of "mkdir -p", which is not fully portable, use new
5633 Perl script "util/mkdir-p.pl".
5636 *) Rewrite the way password based encryption (PBE) is handled. It used to
5637 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5638 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5639 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5640 the 'parameter' field of the AlgorithmIdentifier is passed to the
5641 underlying key generation function so it must do its own ASN1 parsing.
5642 This has also changed the EVP_PBE_CipherInit() function which now has a
5643 'parameter' argument instead of literal salt and iteration count values
5644 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5647 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5648 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5649 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5650 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5651 value was just used as a "magic string" and not used directly its
5652 value doesn't matter.
5655 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5659 *) "linux-sparc64" configuration (ultrapenguin).
5660 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5661 "linux-sparc" configuration.
5662 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5664 *) config now generates no-xxx options for missing ciphers.
5667 *) Support the EBCDIC character set (work in progress).
5668 File ebcdic.c not yet included because it has a different license.
5669 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5671 *) Support BS2000/OSD-POSIX.
5672 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5674 *) Make callbacks for key generation use void * instead of char *.
5677 *) Make S/MIME samples compile (not yet tested).
5680 *) Additional typesafe stacks.
5683 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5687 Changes between 0.9.3 and 0.9.3a [29 May 1999]
5689 *) New configuration variant "sco5-gcc".
5691 *) Updated some demos.
5692 [Sean O Riordain, Wade Scholine]
5694 *) Add missing BIO_free at exit of pkcs12 application.
5697 *) Fix memory leak in conf.c.
5700 *) Updates for Win32 to assembler version of MD5.
5703 *) Set #! path to perl in apps/der_chop to where we found it
5704 instead of using a fixed path.
5707 *) SHA library changes for irix64-mips4-cc.
5710 *) Improvements for VMS support.
5714 Changes between 0.9.2b and 0.9.3 [24 May 1999]
5716 *) Bignum library bug fix. IRIX 6 passes "make test" now!
5717 This also avoids the problems with SC4.2 and unpatched SC5.
5718 [Andy Polyakov <appro@fy.chalmers.se>]
5720 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
5721 These are required because of the typesafe stack would otherwise break
5722 existing code. If old code used a structure member which used to be STACK
5723 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
5724 sk_num or sk_value it would produce an error because the num, data members
5725 are not present in STACK_OF. Now it just produces a warning. sk_set
5726 replaces the old method of assigning a value to sk_value
5727 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
5728 that does this will no longer work (and should use sk_set instead) but
5729 this could be regarded as a "questionable" behaviour anyway.
5732 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
5733 correctly handle encrypted S/MIME data.
5736 *) Change type of various DES function arguments from des_cblock
5737 (which means, in function argument declarations, pointer to char)
5738 to des_cblock * (meaning pointer to array with 8 char elements),
5739 which allows the compiler to do more typechecking; it was like
5740 that back in SSLeay, but with lots of ugly casts.
5742 Introduce new type const_des_cblock.
5745 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
5746 problems: find RecipientInfo structure that matches recipient certificate
5747 and initialise the ASN1 structures properly based on passed cipher.
5750 *) Belatedly make the BN tests actually check the results.
5753 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
5754 to and from BNs: it was completely broken. New compilation option
5755 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
5756 key elements as negative integers.
5759 *) Reorganize and speed up MD5.
5760 [Andy Polyakov <appro@fy.chalmers.se>]
5763 [Richard Levitte <richard@levitte.org>]
5765 *) New option -out to asn1parse to allow the parsed structure to be
5766 output to a file. This is most useful when combined with the -strparse
5767 option to examine the output of things like OCTET STRINGS.
5770 *) Make SSL library a little more fool-proof by not requiring any longer
5771 that SSL_set_{accept,connect}_state be called before
5772 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
5773 in many applications because usually everything *appeared* to work as
5774 intended anyway -- now it really works as intended).
5777 *) Move openssl.cnf out of lib/.
5780 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
5781 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
5782 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
5783 [Ralf S. Engelschall]
5785 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
5786 handle PKCS#7 enveloped data properly.
5787 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
5789 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
5790 copying pointers. The cert_st handling is changed by this in
5791 various ways (and thus what used to be known as ctx->default_cert
5792 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
5793 any longer when s->cert does not give us what we need).
5794 ssl_cert_instantiate becomes obsolete by this change.
5795 As soon as we've got the new code right (possibly it already is?),
5796 we have solved a couple of bugs of the earlier code where s->cert
5797 was used as if it could not have been shared with other SSL structures.
5799 Note that using the SSL API in certain dirty ways now will result
5800 in different behaviour than observed with earlier library versions:
5801 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
5802 does not influence s as it used to.
5804 In order to clean up things more thoroughly, inside SSL_SESSION
5805 we don't use CERT any longer, but a new structure SESS_CERT
5806 that holds per-session data (if available); currently, this is
5807 the peer's certificate chain and, for clients, the server's certificate
5808 and temporary key. CERT holds only those values that can have
5809 meaningful defaults in an SSL_CTX.
5812 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
5813 from the internal representation. Various PKCS#7 fixes: remove some
5814 evil casts and set the enc_dig_alg field properly based on the signing
5818 *) Allow PKCS#12 password to be set from the command line or the
5819 environment. Let 'ca' get its config file name from the environment
5820 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
5824 *) Allow certificate policies extension to use an IA5STRING for the
5825 organization field. This is contrary to the PKIX definition but
5826 VeriSign uses it and IE5 only recognises this form. Document 'x509'
5830 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
5831 without disallowing inline assembler and the like for non-pedantic builds.
5834 *) Support Borland C++ builder.
5835 [Janez Jere <jj@void.si>, modified by Ulf Möller]
5840 *) SHA-1 cleanups and performance enhancements.
5841 [Andy Polyakov <appro@fy.chalmers.se>]
5843 *) Sparc v8plus assembler for the bignum library.
5844 [Andy Polyakov <appro@fy.chalmers.se>]
5846 *) Accept any -xxx and +xxx compiler options in Configure.
5849 *) Update HPUX configuration.
5852 *) Add missing sk_<type>_unshift() function to safestack.h
5853 [Ralf S. Engelschall]
5855 *) New function SSL_CTX_use_certificate_chain_file that sets the
5856 "extra_cert"s in addition to the certificate. (This makes sense
5857 only for "PEM" format files, as chains as a whole are not
5861 *) Support verify_depth from the SSL API.
5862 x509_vfy.c had what can be considered an off-by-one-error:
5863 Its depth (which was not part of the external interface)
5864 was actually counting the number of certificates in a chain;
5865 now it really counts the depth.
5868 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
5869 instead of X509err, which often resulted in confusing error
5870 messages since the error codes are not globally unique
5871 (e.g. an alleged error in ssl3_accept when a certificate
5872 didn't match the private key).
5874 *) New function SSL_CTX_set_session_id_context that allows to set a default
5875 value (so that you don't need SSL_set_session_id_context for each
5876 connection using the SSL_CTX).
5879 *) OAEP decoding bug fix.
5882 *) Support INSTALL_PREFIX for package builders, as proposed by
5886 *) New Configure options "threads" and "no-threads". For systems
5887 where the proper compiler options are known (currently Solaris
5888 and Linux), "threads" is the default.
5891 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
5894 *) Install various scripts to $(OPENSSLDIR)/misc, not to
5895 $(INSTALLTOP)/bin -- they shouldn't clutter directories
5896 such as /usr/local/bin.
5899 *) "make linux-shared" to build shared libraries.
5900 [Niels Poppe <niels@netbox.org>]
5902 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
5905 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
5906 extension adding in x509 utility.
5909 *) Remove NOPROTO sections and error code comments.
5912 *) Partial rewrite of the DEF file generator to now parse the ANSI
5916 *) New Configure options --prefix=DIR and --openssldir=DIR.
5919 *) Complete rewrite of the error code script(s). It is all now handled
5920 by one script at the top level which handles error code gathering,
5921 header rewriting and C source file generation. It should be much better
5922 than the old method: it now uses a modified version of Ulf's parser to
5923 read the ANSI prototypes in all header files (thus the old K&R definitions
5924 aren't needed for error creation any more) and do a better job of
5925 translating function codes into names. The old 'ASN1 error code imbedded
5926 in a comment' is no longer necessary and it doesn't use .err files which
5927 have now been deleted. Also the error code call doesn't have to appear all
5928 on one line (which resulted in some large lines...).
5931 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
5934 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
5935 0 (which usually indicates a closed connection), but continue reading.
5938 *) Fix some race conditions.
5941 *) Add support for CRL distribution points extension. Add Certificate
5942 Policies and CRL distribution points documentation.
5945 *) Move the autogenerated header file parts to crypto/opensslconf.h.
5948 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
5949 8 of keying material. Merlin has also confirmed interop with this fix
5950 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
5951 [Merlin Hughes <merlin@baltimore.ie>]
5953 *) Fix lots of warnings.
5954 [Richard Levitte <levitte@stacken.kth.se>]
5956 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
5957 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
5958 [Richard Levitte <levitte@stacken.kth.se>]
5960 *) Fix problems with sizeof(long) == 8.
5961 [Andy Polyakov <appro@fy.chalmers.se>]
5963 *) Change functions to ANSI C.
5966 *) Fix typos in error codes.
5967 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
5969 *) Remove defunct assembler files from Configure.
5972 *) SPARC v8 assembler BIGNUM implementation.
5973 [Andy Polyakov <appro@fy.chalmers.se>]
5975 *) Support for Certificate Policies extension: both print and set.
5976 Various additions to support the r2i method this uses.
5979 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
5980 return a const string when you are expecting an allocated buffer.
5983 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
5984 types DirectoryString and DisplayText.
5987 *) Add code to allow r2i extensions to access the configuration database,
5988 add an LHASH database driver and add several ctx helper functions.
5991 *) Fix an evil bug in bn_expand2() which caused various BN functions to
5992 fail when they extended the size of a BIGNUM.
5995 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
5996 support typesafe stack.
5999 *) Fix typo in SSL_[gs]et_options().
6000 [Nils Frostberg <nils@medcom.se>]
6002 *) Delete various functions and files that belonged to the (now obsolete)
6003 old X509V3 handling code.
6006 *) New Configure option "rsaref".
6009 *) Don't auto-generate pem.h.
6012 *) Introduce type-safe ASN.1 SETs.
6015 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6016 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6018 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6019 that links with OpenSSL (well at least cause lots of warnings), but fear
6020 not: the conversion is trivial, and it eliminates loads of evil casts. A
6021 few STACKed things have been converted already. Feel free to convert more.
6022 In the fullness of time, I'll do away with the STACK type altogether.
6025 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6026 specified in <certfile> by updating the entry in the index.txt file.
6027 This way one no longer has to edit the index.txt file manually for
6028 revoking a certificate. The -revoke option does the gory details now.
6029 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6031 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6032 `-text' option at all and this way the `-noout -text' combination was
6033 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6034 [Ralf S. Engelschall]
6036 *) Make sure a corresponding plain text error message exists for the
6037 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6038 verify callback function determined that a certificate was revoked.
6039 [Ralf S. Engelschall]
6041 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6042 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6043 all available cipers including rc5, which was forgotten until now.
6044 In order to let the testing shell script know which algorithms
6045 are available, a new (up to now undocumented) command
6046 "openssl list-cipher-commands" is used.
6049 *) Bugfix: s_client occasionally would sleep in select() when
6050 it should have checked SSL_pending() first.
6053 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6054 the raw DSA values prior to ASN.1 encoding.
6057 *) Tweaks to Configure
6058 [Niels Poppe <niels@netbox.org>]
6060 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6064 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6067 *) New config option to avoid instructions that are illegal on the 80386.
6068 The default code is faster, but requires at least a 486.
6071 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6072 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6073 same as SSL2_VERSION anyway.
6076 *) New "-showcerts" option for s_client.
6079 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6080 application. Various cleanups and fixes.
6083 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6084 modify error routines to work internally. Add error codes and PBE init
6085 to library startup routines.
6088 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6089 packing functions to asn1 and evp. Changed function names and error
6090 codes along the way.
6093 *) PKCS12 integration: and so it begins... First of several patches to
6094 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6095 objects to objects.h
6098 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6099 and display support for Thawte strong extranet extension.
6102 *) Add LinuxPPC support.
6103 [Jeff Dubrule <igor@pobox.org>]
6105 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6106 bn_div_words in alpha.s.
6107 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6109 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6110 OAEP isn't supported when OpenSSL is built with RSAref.
6111 [Ulf Moeller <ulf@fitug.de>]
6113 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6114 so they no longer are missing under -DNOPROTO.
6115 [Soren S. Jorvang <soren@t.dk>]
6118 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6120 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6121 doesn't work when the session is reused. Coming soon!
6124 *) Fix a security hole, that allows sessions to be reused in the wrong
6125 context thus bypassing client cert protection! All software that uses
6126 client certs and session caches in multiple contexts NEEDS PATCHING to
6127 allow session reuse! A fuller solution is in the works.
6128 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6130 *) Some more source tree cleanups (removed obsolete files
6131 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6132 permission on "config" script to be executable) and a fix for the INSTALL
6134 [Ulf Moeller <ulf@fitug.de>]
6136 *) Remove some legacy and erroneous uses of malloc, free instead of
6138 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
6140 *) Make rsa_oaep_test return non-zero on error.
6141 [Ulf Moeller <ulf@fitug.de>]
6143 *) Add support for native Solaris shared libraries. Configure
6144 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
6145 if someone would make that last step automatic.
6146 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
6148 *) ctx_size was not built with the right compiler during "make links". Fixed.
6151 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
6152 except NULL ciphers". This means the default cipher list will no longer
6153 enable NULL ciphers. They need to be specifically enabled e.g. with
6154 the string "DEFAULT:eNULL".
6157 *) Fix to RSA private encryption routines: if p < q then it would
6158 occasionally produce an invalid result. This will only happen with
6159 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
6162 *) Be less restrictive and allow also `perl util/perlpath.pl
6163 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
6164 because this way one can also use an interpreter named `perl5' (which is
6165 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
6166 installed as `perl').
6167 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6169 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
6170 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6172 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
6173 advapi32.lib to Win32 build and change the pem test comparision
6174 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
6175 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
6176 and crypto/des/ede_cbcm_enc.c.
6179 *) DES quad checksum was broken on big-endian architectures. Fixed.
6182 *) Comment out two functions in bio.h that aren't implemented. Fix up the
6183 Win32 test batch file so it (might) work again. The Win32 test batch file
6184 is horrible: I feel ill....
6187 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6188 in e_os.h. Audit of header files to check ANSI and non ANSI
6189 sections: 10 functions were absent from non ANSI section and not exported
6190 from Windows DLLs. Fixed up libeay.num for new functions.
6193 *) Make `openssl version' output lines consistent.
6194 [Ralf S. Engelschall]
6196 *) Fix Win32 symbol export lists for BIO functions: Added
6197 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6198 to ms/libeay{16,32}.def.
6199 [Ralf S. Engelschall]
6201 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6202 fine under Unix and passes some trivial tests I've now added. But the
6203 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6204 added to make sure no one expects that this stuff really works in the
6205 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6206 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6208 [Ralf S. Engelschall]
6210 *) Fix the generation of two part addresses in perl.
6211 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6213 *) Add config entry for Linux on MIPS.
6214 [John Tobey <jtobey@channel1.com>]
6216 *) Make links whenever Configure is run, unless we are on Windoze.
6219 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6220 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6224 *) Add a useful kludge to allow package maintainers to specify compiler and
6225 other platforms details on the command line without having to patch the
6226 Configure script everytime: One now can use ``perl Configure
6227 <id>:<details>'', i.e. platform ids are allowed to have details appended
6228 to them (seperated by colons). This is treated as there would be a static
6229 pre-configured entry in Configure's %table under key <id> with value
6230 <details> and ``perl Configure <id>'' is called. So, when you want to
6231 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6232 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6233 now, which overrides the FreeBSD-elf entry on-the-fly.
6234 [Ralf S. Engelschall]
6236 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6239 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6240 on the `perl Configure ...' command line. This way one can compile
6241 OpenSSL libraries with Position Independent Code (PIC) which is needed
6242 for linking it into DSOs.
6243 [Ralf S. Engelschall]
6245 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6249 *) Cleaned up the LICENSE document: The official contact for any license
6250 questions now is the OpenSSL core team under openssl-core@openssl.org.
6251 And add a paragraph about the dual-license situation to make sure people
6252 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6253 to the OpenSSL toolkit.
6254 [Ralf S. Engelschall]
6256 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6257 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6258 Additonally cleaned up the `make links' target: Remove unnecessary
6259 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6260 to speed processing and no longer clutter the display with confusing
6261 stuff. Instead only the actually done links are displayed.
6262 [Ralf S. Engelschall]
6264 *) Permit null encryption ciphersuites, used for authentication only. It used
6265 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6266 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6270 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6271 signed attributes when verifying signatures (this would break them),
6272 the detached data encoding was wrong and public keys obtained using
6273 X509_get_pubkey() weren't freed.
6276 *) Add text documentation for the BUFFER functions. Also added a work around
6277 to a Win95 console bug. This was triggered by the password read stuff: the
6278 last character typed gets carried over to the next fread(). If you were
6279 generating a new cert request using 'req' for example then the last
6280 character of the passphrase would be CR which would then enter the first
6284 *) Added the new `Includes OpenSSL Cryptography Software' button as
6285 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6286 button and can be used by applications based on OpenSSL to show the
6287 relationship to the OpenSSL project.
6288 [Ralf S. Engelschall]
6290 *) Remove confusing variables in function signatures in files
6291 ssl/ssl_lib.c and ssl/ssl.h.
6292 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6294 *) Don't install bss_file.c under PREFIX/include/
6295 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6297 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6298 functions that return function pointers and has support for NT specific
6299 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6300 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6301 unsigned to signed types: this was killing the Win32 compile.
6304 *) Add new certificate file to stack functions,
6305 SSL_add_dir_cert_subjects_to_stack() and
6306 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6307 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6308 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6309 This means that Apache-SSL and similar packages don't have to mess around
6310 to add as many CAs as they want to the preferred list.
6313 *) Experiment with doxygen documentation. Currently only partially applied to
6315 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6316 openssl.doxy as the configuration file.
6319 *) Get rid of remaining C++-style comments which strict C compilers hate.
6320 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6322 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6323 compiled in by default: it has problems with large keys.
6326 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6327 DH private keys and/or callback functions which directly correspond to
6328 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6329 is needed for applications which have to configure certificates on a
6330 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6332 For the RSA certificate situation is makes no difference, but
6333 for the DSA certificate situation this fixes the "no shared cipher"
6334 problem where the OpenSSL cipher selection procedure failed because the
6335 temporary keys were not overtaken from the context and the API provided
6336 no way to reconfigure them.
6337 The new functions now let applications reconfigure the stuff and they
6338 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6339 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6340 non-public-API function ssl_cert_instantiate() is used as a helper
6341 function and also to reduce code redundancy inside ssl_rsa.c.
6342 [Ralf S. Engelschall]
6344 *) Move s_server -dcert and -dkey options out of the undocumented feature
6345 area because they are useful for the DSA situation and should be
6346 recognized by the users.
6347 [Ralf S. Engelschall]
6349 *) Fix the cipher decision scheme for export ciphers: the export bits are
6350 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6351 SSL_EXP_MASK. So, the original variable has to be used instead of the
6352 already masked variable.
6353 [Richard Levitte <levitte@stacken.kth.se>]
6355 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6356 [Richard Levitte <levitte@stacken.kth.se>]
6358 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6359 from `int' to `unsigned int' because it's a length and initialized by
6360 EVP_DigestFinal() which expects an `unsigned int *'.
6361 [Richard Levitte <levitte@stacken.kth.se>]
6363 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6364 script. Instead use the usual Shell->Perl transition trick.
6365 [Ralf S. Engelschall]
6367 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6368 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6369 -noout -modulus' as it's already the case for `openssl rsa -noout
6370 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6371 currently the public key is printed (a decision which was already done by
6372 `openssl dsa -modulus' in the past) which serves a similar purpose.
6373 Additionally the NO_RSA no longer completely removes the whole -modulus
6374 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6376 [Ralf S. Engelschall]
6378 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6379 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6380 [Arne Ansper <arne@ats.cyber.ee>]
6382 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6383 to be added. Now both 'req' and 'ca' can use new objects defined in the
6387 *) Add cool BIO that does syslog (or event log on NT).
6388 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6390 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6391 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6392 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6393 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6396 *) Add preliminary config info for new extension code.
6399 *) Make RSA_NO_PADDING really use no padding.
6400 [Ulf Moeller <ulf@fitug.de>]
6402 *) Generate errors when private/public key check is done.
6405 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6406 for some CRL extensions and new objects added.
6409 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6410 key usage extension and fuller support for authority key id.
6413 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6414 padding method for RSA, which is recommended for new applications in PKCS
6415 #1 v2.0 (RFC 2437, October 1998).
6416 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6417 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6418 against Bleichbacher's attack on RSA.
6419 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6422 *) Updates to the new SSL compression code
6423 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6425 *) Fix so that the version number in the master secret, when passed
6426 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6427 (because the server will not accept higher), that the version number
6428 is 0x03,0x01, not 0x03,0x00
6429 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6431 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6432 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6433 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6436 *) Support for RAW extensions where an arbitrary extension can be
6437 created by including its DER encoding. See apps/openssl.cnf for
6441 *) Make sure latest Perl versions don't interpret some generated C array
6442 code as Perl array code in the crypto/err/err_genc.pl script.
6443 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6445 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6446 not many people have the assembler. Various Win32 compilation fixes and
6447 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6451 *) Modify configure script 'Configure' to automatically create crypto/date.h
6452 file under Win32 and also build pem.h from pem.org. New script
6453 util/mkfiles.pl to create the MINFO file on environments that can't do a
6454 'make files': perl util/mkfiles.pl >MINFO should work.
6457 *) Major rework of DES function declarations, in the pursuit of correctness
6458 and purity. As a result, many evil casts evaporated, and some weirdness,
6459 too. You may find this causes warnings in your code. Zapping your evil
6460 casts will probably fix them. Mostly.
6463 *) Fix for a typo in asn1.h. Bug fix to object creation script
6464 obj_dat.pl. It considered a zero in an object definition to mean
6465 "end of object": none of the objects in objects.h have any zeros
6466 so it wasn't spotted.
6467 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6469 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6470 Masking (CBCM). In the absence of test vectors, the best I have been able
6471 to do is check that the decrypt undoes the encrypt, so far. Send me test
6472 vectors if you have them.
6475 *) Correct calculation of key length for export ciphers (too much space was
6476 allocated for null ciphers). This has not been tested!
6479 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6480 message is now correct (it understands "crypto" and "ssl" on its
6481 command line). There is also now an "update" option. This will update
6482 the util/ssleay.num and util/libeay.num files with any new functions.
6484 perl util/mkdef.pl crypto ssl update
6485 it will update them.
6488 *) Overhauled the Perl interface (perl/*):
6489 - ported BN stuff to OpenSSL's different BN library
6490 - made the perl/ source tree CVS-aware
6491 - renamed the package from SSLeay to OpenSSL (the files still contain
6492 their history because I've copied them in the repository)
6493 - removed obsolete files (the test scripts will be replaced
6494 by better Test::Harness variants in the future)
6495 [Ralf S. Engelschall]
6497 *) First cut for a very conservative source tree cleanup:
6498 1. merge various obsolete readme texts into doc/ssleay.txt
6499 where we collect the old documents and readme texts.
6500 2. remove the first part of files where I'm already sure that we no
6501 longer need them because of three reasons: either they are just temporary
6502 files which were left by Eric or they are preserved original files where
6503 I've verified that the diff is also available in the CVS via "cvs diff
6504 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6505 the crypto/md/ stuff).
6506 [Ralf S. Engelschall]
6508 *) More extension code. Incomplete support for subject and issuer alt
6509 name, issuer and authority key id. Change the i2v function parameters
6510 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6511 what that's for :-) Fix to ASN1 macro which messed up
6512 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6515 *) Preliminary support for ENUMERATED type. This is largely copied from the
6519 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6520 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6522 *) Make sure `make rehash' target really finds the `openssl' program.
6523 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6525 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6526 like to hear about it if this slows down other processors.
6529 *) Add CygWin32 platform information to Configure script.
6530 [Alan Batie <batie@aahz.jf.intel.com>]
6532 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6533 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6535 *) New program nseq to manipulate netscape certificate sequences
6538 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6542 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6543 but the BN code had some problems that would cause failures when
6544 doing certificate verification and some other functions.
6545 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6547 *) Add ASN1 and PEM code to support netscape certificate sequences.
6550 *) Add ASN1 and PEM code to support netscape certificate sequences.
6553 *) Add several PKIX and private extended key usage OIDs.
6556 *) Modify the 'ca' program to handle the new extension code. Modify
6557 openssl.cnf for new extension format, add comments.
6560 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6561 and add a sample to openssl.cnf so req -x509 now adds appropriate
6565 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6566 error code, add initial support to X509_print() and x509 application.
6569 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6570 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6571 stuff is currently isolated and isn't even compiled yet.
6574 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6575 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6576 Removed the versions check from X509 routines when loading extensions:
6577 this allows certain broken certificates that don't set the version
6578 properly to be processed.
6581 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6582 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6583 can still be regenerated with "make depend".
6586 *) Spelling mistake in C version of CAST-128.
6587 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6589 *) Changes to the error generation code. The perl script err-code.pl
6590 now reads in the old error codes and retains the old numbers, only
6591 adding new ones if necessary. It also only changes the .err files if new
6592 codes are added. The makefiles have been modified to only insert errors
6593 when needed (to avoid needlessly modifying header files). This is done
6594 by only inserting errors if the .err file is newer than the auto generated
6595 C file. To rebuild all the error codes from scratch (the old behaviour)
6596 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6597 or delete all the .err files.
6600 *) CAST-128 was incorrectly implemented for short keys. The C version has
6601 been fixed, but is untested. The assembler versions are also fixed, but
6602 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6603 to regenerate it if needed.
6604 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6605 Hagino <itojun@kame.net>]
6607 *) File was opened incorrectly in randfile.c.
6608 [Ulf Möller <ulf@fitug.de>]
6610 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6611 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6612 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6613 al: it's just almost always a UTCTime. Note this patch adds new error
6614 codes so do a "make errors" if there are problems.
6617 *) Correct Linux 1 recognition in config.
6618 [Ulf Möller <ulf@fitug.de>]
6620 *) Remove pointless MD5 hash when using DSA keys in ca.
6621 [Anonymous <nobody@replay.com>]
6623 *) Generate an error if given an empty string as a cert directory. Also
6624 generate an error if handed NULL (previously returned 0 to indicate an
6625 error, but didn't set one).
6626 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6628 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6631 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6632 parameters. This was causing a warning which killed off the Win32 compile.
6635 *) Remove C++ style comments from crypto/bn/bn_local.h.
6636 [Neil Costigan <neil.costigan@celocom.com>]
6638 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6639 based on a text string, looking up short and long names and finally
6640 "dot" format. The "dot" format stuff didn't work. Added new function
6641 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6642 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6643 OID is not part of the table.
6646 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6647 X509_LOOKUP_by_alias().
6650 *) Sort openssl functions by name.
6653 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6654 encryption from sample DSA keys (in case anyone is interested the password
6658 *) Make _all_ *_free functions accept a NULL pointer.
6659 [Frans Heymans <fheymans@isaserver.be>]
6661 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6663 [Anonymous <nobody@replay.com>]
6665 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6666 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6668 *) Don't blow it for numeric -newkey arguments to apps/req.
6669 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6671 *) Temp key "for export" tests were wrong in s3_srvr.c.
6672 [Anonymous <nobody@replay.com>]
6674 *) Add prototype for temp key callback functions
6675 SSL_CTX_set_tmp_{rsa,dh}_callback().
6678 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6679 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6682 *) X509_name_add_entry() freed the wrong thing after an error.
6683 [Arne Ansper <arne@ats.cyber.ee>]
6685 *) rsa_eay.c would attempt to free a NULL context.
6686 [Arne Ansper <arne@ats.cyber.ee>]
6688 *) BIO_s_socket() had a broken should_retry() on Windoze.
6689 [Arne Ansper <arne@ats.cyber.ee>]
6691 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
6692 [Arne Ansper <arne@ats.cyber.ee>]
6694 *) Make sure the already existing X509_STORE->depth variable is initialized
6695 in X509_STORE_new(), but document the fact that this variable is still
6696 unused in the certificate verification process.
6697 [Ralf S. Engelschall]
6699 *) Fix the various library and apps files to free up pkeys obtained from
6700 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6703 *) Fix reference counting in X509_PUBKEY_get(). This makes
6704 demos/maurice/example2.c work, amongst others, probably.
6705 [Steve Henson and Ben Laurie]
6707 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
6708 `openssl' and second, the shortcut symlinks for the `openssl <command>'
6709 are no longer created. This way we have a single and consistent command
6710 line interface `openssl <command>', similar to `cvs <command>'.
6711 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6713 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
6714 BIT STRING wrapper always have zero unused bits.
6717 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
6720 *) Make the top-level INSTALL documentation easier to understand.
6723 *) Makefiles updated to exit if an error occurs in a sub-directory
6724 make (including if user presses ^C) [Paul Sutton]
6726 *) Make Montgomery context stuff explicit in RSA data structure.
6729 *) Fix build order of pem and err to allow for generated pem.h.
6732 *) Fix renumbering bug in X509_NAME_delete_entry().
6735 *) Enhanced the err-ins.pl script so it makes the error library number
6736 global and can add a library name. This is needed for external ASN1 and
6737 other error libraries.
6740 *) Fixed sk_insert which never worked properly.
6743 *) Fix ASN1 macros so they can handle indefinite length construted
6744 EXPLICIT tags. Some non standard certificates use these: they can now
6748 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
6749 into a single doc/ssleay.txt bundle. This way the information is still
6750 preserved but no longer messes up this directory. Now it's new room for
6751 the new set of documenation files.
6752 [Ralf S. Engelschall]
6754 *) SETs were incorrectly DER encoded. This was a major pain, because they
6755 shared code with SEQUENCEs, which aren't coded the same. This means that
6756 almost everything to do with SETs or SEQUENCEs has either changed name or
6757 number of arguments.
6758 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
6760 *) Fix test data to work with the above.
6763 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
6764 was already fixed by Eric for 0.9.1 it seems.
6765 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
6767 *) Autodetect FreeBSD3.
6770 *) Fix various bugs in Configure. This affects the following platforms:
6774 unixware-2.0-pentium
6778 *) Eliminate generated files from CVS. Reorder tests to regenerate files
6779 before they are needed.
6782 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
6786 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
6788 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
6789 changed SSLeay to OpenSSL in version strings.
6790 [Ralf S. Engelschall]
6792 *) Some fixups to the top-level documents.
6795 *) Fixed the nasty bug where rsaref.h was not found under compile-time
6796 because the symlink to include/ was missing.
6797 [Ralf S. Engelschall]
6799 *) Incorporated the popular no-RSA/DSA-only patches
6800 which allow to compile a RSA-free SSLeay.
6801 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
6803 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
6804 when "ssleay" is still not found.
6805 [Ralf S. Engelschall]
6807 *) Added more platforms to Configure: Cray T3E, HPUX 11,
6808 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
6810 *) Updated the README file.
6811 [Ralf S. Engelschall]
6813 *) Added various .cvsignore files in the CVS repository subdirs
6814 to make a "cvs update" really silent.
6815 [Ralf S. Engelschall]
6817 *) Recompiled the error-definition header files and added
6818 missing symbols to the Win32 linker tables.
6819 [Ralf S. Engelschall]
6821 *) Cleaned up the top-level documents;
6822 o new files: CHANGES and LICENSE
6823 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
6824 o merged COPYRIGHT into LICENSE
6825 o removed obsolete TODO file
6826 o renamed MICROSOFT to INSTALL.W32
6827 [Ralf S. Engelschall]
6829 *) Removed dummy files from the 0.9.1b source tree:
6830 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
6831 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
6832 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
6833 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
6834 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
6835 [Ralf S. Engelschall]
6837 *) Added various platform portability fixes.
6840 *) The Genesis of the OpenSSL rpject:
6841 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
6842 Young and Tim J. Hudson created while they were working for C2Net until
6844 [The OpenSSL Project]
6847 Changes between 0.9.0b and 0.9.1b [not released]
6849 *) Updated a few CA certificates under certs/
6852 *) Changed some BIGNUM api stuff.
6855 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
6856 DGUX x86, Linux Alpha, etc.
6859 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
6860 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
6864 *) Add -strparse option to asn1pars program which parses nested
6866 [Dr Stephen Henson <shenson@bigfoot.com>]
6868 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
6871 *) DSA fix for "ca" program.
6874 *) Added "-genkey" option to "dsaparam" program.
6877 *) Added RIPE MD160 (rmd160) message digest.
6880 *) Added -a (all) option to "ssleay version" command.
6883 *) Added PLATFORM define which is the id given to Configure.
6886 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
6889 *) Extended the ASN.1 parser routines.
6892 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
6895 *) Added a BN_CTX to the BN library.
6898 *) Fixed the weak key values in DES library
6901 *) Changed API in EVP library for cipher aliases.
6904 *) Added support for RC2/64bit cipher.
6907 *) Converted the lhash library to the crypto/mem.c functions.
6910 *) Added more recognized ASN.1 object ids.
6913 *) Added more RSA padding checks for SSL/TLS.
6916 *) Added BIO proxy/filter functionality.
6919 *) Added extra_certs to SSL_CTX which can be used
6920 send extra CA certificates to the client in the CA cert chain sending
6921 process. It can be configured with SSL_CTX_add_extra_chain_cert().
6924 *) Now Fortezza is denied in the authentication phase because
6925 this is key exchange mechanism is not supported by SSLeay at all.
6928 *) Additional PKCS1 checks.
6931 *) Support the string "TLSv1" for all TLS v1 ciphers.
6934 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
6935 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
6938 *) Fixed a few memory leaks.
6941 *) Fixed various code and comment typos.
6944 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
6945 bytes sent in the client random.
6946 [Edward Bishop <ebishop@spyglass.com>]