5 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
7 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
8 via timing by performing a MAC computation even if incorrrect
9 block cipher padding has been found. This is a countermeasure
10 against active attacks where the attacker has to distinguish
11 between bad padding and a MAC verification error. (CAN-2003-0078)
13 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
14 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
15 Martin Vuagnoux (EPFL, Ilion)]
17 *) Make the no-err option work as intended. The intention with no-err
18 is not to have the whole error stack handling routines removed from
19 libcrypto, it's only intended to remove all the function name and
20 reason texts, thereby removing some of the footprint that may not
21 be interesting if those errors aren't displayed anyway.
23 NOTE: it's still possible for any application or module to have it's
24 own set of error texts inserted. The routines are there, just not
25 used by default when no-err is given.
28 *) Add support for FreeBSD on IA64.
29 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
31 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
32 Kerberos function mit_des_cbc_cksum(). Before this change,
33 the value returned by DES_cbc_cksum() was like the one from
34 mit_des_cbc_cksum(), except the bytes were swapped.
35 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
37 *) Allow an application to disable the automatic SSL chain building.
38 Before this a rather primitive chain build was always performed in
39 ssl3_output_cert_chain(): an application had no way to send the
40 correct chain if the automatic operation produced an incorrect result.
42 Now the chain builder is disabled if either:
44 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
46 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
48 The reasoning behind this is that an application would not want the
49 auto chain building to take place if extra chain certificates are
50 present and it might also want a means of sending no additional
51 certificates (for example the chain has two certificates and the
55 *) Add the possibility to build without the ENGINE framework.
56 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
58 *) Under Win32 gmtime() can return NULL: check return value in
59 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
62 *) DSA routines: under certain error conditions uninitialized BN objects
63 could be freed. Solution: make sure initialization is performed early
64 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
65 Nils Larsch <nla@trustcenter.de> via PR#459)
68 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
69 checked on reconnect on the client side, therefore session resumption
70 could still fail with a "ssl session id is different" error. This
71 behaviour is masked when SSL_OP_ALL is used due to
72 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
73 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
77 *) IA-32 assembler support enhancements: unified ELF targets, support
78 for SCO/Caldera platforms, fix for Cygwin shared build.
81 *) Add support for FreeBSD on sparc64. As a consequence, support for
82 FreeBSD on non-x86 processors is separate from x86 processors on
83 the config script, much like the NetBSD support.
84 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
86 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
88 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
89 code (06) was taken as the first octet of the session ID and the last
90 octet was ignored consequently. As a result SSLv2 client side session
91 caching could not have worked due to the session ID mismatch between
93 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
97 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
98 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
102 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
103 seems that in spite of existing for more than a year, many application
104 author have done nothing to provide the necessary callbacks, which
105 means that this particular engine will not work properly anywhere.
106 This is a very unfortunate situation which forces us, in the name
107 of usability, to give the hw_ncipher.c a static lock, which is part
109 NOTE: This is for the 0.9.7 series ONLY. This hack will never
110 appear in 0.9.8 or later. We EXPECT application authors to have
111 dealt properly with this when 0.9.8 is released (unless we actually
112 make such changes in the libcrypto locking code that changes will
113 have to be made anyway).
116 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
117 octets have been read, EOF or an error occurs. Without this change
118 some truncated ASN1 structures will not produce an error.
121 *) Disable Heimdal support, since it hasn't been fully implemented.
122 Still give the possibility to force the use of Heimdal, but with
123 warnings and a request that patches get sent to openssl-dev.
126 *) Add the VC-CE target, introduce the WINCE sysname, and add
127 INSTALL.WCE and appropriate conditionals to make it build.
128 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
130 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
131 cygssl-x.y.z.dll, where x, y and z are the major, minor and
132 edit numbers of the version.
133 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
135 *) Introduce safe string copy and catenation functions
136 (BUF_strlcpy() and BUF_strlcat()).
137 [Ben Laurie (CHATS) and Richard Levitte]
139 *) Avoid using fixed-size buffers for one-line DNs.
142 *) Add BUF_MEM_grow_clean() to avoid information leakage when
143 resizing buffers containing secrets, and use where appropriate.
146 *) Avoid using fixed size buffers for configuration file location.
149 *) Avoid filename truncation for various CA files.
152 *) Use sizeof in preference to magic numbers.
155 *) Avoid filename truncation in cert requests.
158 *) Add assertions to check for (supposedly impossible) buffer
162 *) Don't cache truncated DNS entries in the local cache (this could
163 potentially lead to a spoofing attack).
166 *) Fix various buffers to be large enough for hex/decimal
167 representations in a platform independent manner.
170 *) Add CRYPTO_realloc_clean() to avoid information leakage when
171 resizing buffers containing secrets, and use where appropriate.
174 *) Add BIO_indent() to avoid much slightly worrying code to do
178 *) Convert sprintf()/BIO_puts() to BIO_printf().
181 *) buffer_gets() could terminate with the buffer only half
185 *) Add assertions to prevent user-supplied crypto functions from
186 overflowing internal buffers by having large block sizes, etc.
189 *) New OPENSSL_assert() macro (similar to assert(), but enabled
193 *) Eliminate unused copy of key in RC4.
196 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
199 *) Fix off-by-one error in EGD path.
202 *) If RANDFILE path is too long, ignore instead of truncating.
205 *) Eliminate unused and incorrectly sized X.509 structure
209 *) Eliminate unused and dangerous function knumber().
212 *) Eliminate unused and dangerous structure, KSSL_ERR.
215 *) Protect against overlong session ID context length in an encoded
216 session object. Since these are local, this does not appear to be
220 *) Change from security patch (see 0.9.6e below) that did not affect
221 the 0.9.6 release series:
223 Remote buffer overflow in SSL3 protocol - an attacker could
224 supply an oversized master key in Kerberos-enabled versions.
228 *) Change the SSL kerb5 codes to match RFC 2712.
231 *) Make -nameopt work fully for req and add -reqopt switch.
232 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
234 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
235 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
237 *) Make sure tests can be performed even if the corresponding algorithms
238 have been removed entirely. This was also the last step to make
239 OpenSSL compilable with DJGPP under all reasonable conditions.
240 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
242 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
243 to allow version independent disabling of normally unselected ciphers,
244 which may be activated as a side-effect of selecting a single cipher.
246 (E.g., cipher list string "RSA" enables ciphersuites that are left
247 out of "ALL" because they do not provide symmetric encryption.
248 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
249 [Lutz Jaenicke, Bodo Moeller]
251 *) Add appropriate support for separate platform-dependent build
252 directories. The recommended way to make a platform-dependent
253 build directory is the following (tested on Linux), maybe with
256 # Place yourself outside of the OpenSSL source tree. In
257 # this example, the environment variable OPENSSL_SOURCE
258 # is assumed to contain the absolute OpenSSL source directory.
259 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
260 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
261 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
262 mkdir -p `dirname $F`
263 ln -s $OPENSSL_SOURCE/$F $F
266 To be absolutely sure not to disturb the source tree, a "make clean"
267 is a good thing. If it isn't successfull, don't worry about it,
268 it probably means the source directory is very clean.
271 *) Make sure any ENGINE control commands make local copies of string
272 pointers passed to them whenever necessary. Otherwise it is possible
273 the caller may have overwritten (or deallocated) the original string
274 data when a later ENGINE operation tries to use the stored values.
275 [Götz Babin-Ebell <babinebell@trustcenter.de>]
277 *) Improve diagnostics in file reading and command-line digests.
278 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
280 *) Add AES modes CFB and OFB to the object database. Correct an
281 error in AES-CFB decryption.
284 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
285 allows existing EVP_CIPHER_CTX structures to be reused after
286 calling EVP_*Final(). This behaviour is used by encryption
287 BIOs and some applications. This has the side effect that
288 applications must explicitly clean up cipher contexts with
289 EVP_CIPHER_CTX_cleanup() or they will leak memory.
292 *) Check the values of dna and dnb in bn_mul_recursive before calling
293 bn_mul_comba (a non zero value means the a or b arrays do not contain
294 n2 elements) and fallback to bn_mul_normal if either is not zero.
297 *) Fix escaping of non-ASCII characters when using the -subj option
298 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
301 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
302 form for "surname", serialNumber has no short form.
303 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
304 therefore remove "mail" short name for "internet 7".
305 The OID for unique identifiers in X509 certificates is
306 x500UniqueIdentifier, not uniqueIdentifier.
307 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
310 *) Add an "init" command to the ENGINE config module and auto initialize
311 ENGINEs. Without any "init" command the ENGINE will be initialized
312 after all ctrl commands have been executed on it. If init=1 the
313 ENGINE is initailized at that point (ctrls before that point are run
314 on the uninitialized ENGINE and after on the initialized one). If
315 init=0 then the ENGINE will not be iniatialized at all.
318 *) Fix the 'app_verify_callback' interface so that the user-defined
319 argument is actually passed to the callback: In the
320 SSL_CTX_set_cert_verify_callback() prototype, the callback
321 declaration has been changed from
324 int (*cb)(X509_STORE_CTX *,void *);
325 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
326 i=s->ctx->app_verify_callback(&ctx)
327 has been changed into
328 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
330 To update applications using SSL_CTX_set_cert_verify_callback(),
331 a dummy argument can be added to their callback functions.
332 [D. K. Smetters <smetters@parc.xerox.com>]
334 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
335 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
337 *) Add and OPENSSL_LOAD_CONF define which will cause
338 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
339 This allows older applications to transparently support certain
340 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
341 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
342 load the config file and OPENSSL_add_all_algorithms_conf() which will
343 always load it have also been added.
346 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
347 Adjust NIDs and EVP layer.
348 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
350 *) Config modules support in openssl utility.
352 Most commands now load modules from the config file,
353 though in a few (such as version) this isn't done
354 because it couldn't be used for anything.
356 In the case of ca and req the config file used is
357 the same as the utility itself: that is the -config
358 command line option can be used to specify an
362 *) Move default behaviour from OPENSSL_config(). If appname is NULL
363 use "openssl_conf" if filename is NULL use default openssl config file.
366 *) Add an argument to OPENSSL_config() to allow the use of an alternative
367 config section name. Add a new flag to tolerate a missing config file
368 and move code to CONF_modules_load_file().
371 *) Support for crypto accelerator cards from Accelerated Encryption
372 Processing, www.aep.ie. (Use engine 'aep')
373 The support was copied from 0.9.6c [engine] and adapted/corrected
374 to work with the new engine framework.
375 [AEP Inc. and Richard Levitte]
377 *) Support for SureWare crypto accelerator cards from Baltimore
378 Technologies. (Use engine 'sureware')
379 The support was copied from 0.9.6c [engine] and adapted
380 to work with the new engine framework.
383 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
384 make the newer ENGINE framework commands for the CHIL engine work.
385 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
387 *) Make it possible to produce shared libraries on ReliantUNIX.
388 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
390 *) Add the configuration target debug-linux-ppro.
391 Make 'openssl rsa' use the general key loading routines
392 implemented in apps.c, and make those routines able to
393 handle the key format FORMAT_NETSCAPE and the variant
395 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
397 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
398 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
400 *) Add -keyform to rsautl, and document -engine.
401 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
403 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
404 BIO_R_NO_SUCH_FILE error code rather than the generic
405 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
410 ERR_peek_last_error_line
411 ERR_peek_last_error_line_data.
415 ERR_peek_error_line_data,
416 but report on the latest error recorded rather than the first one
417 still in the error queue.
418 [Ben Laurie, Bodo Moeller]
420 *) default_algorithms option in ENGINE config module. This allows things
422 default_algorithms = ALL
423 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
426 *) Prelminary ENGINE config module.
429 *) New experimental application configuration code.
432 *) Change the AES code to follow the same name structure as all other
433 symmetric ciphers, and behave the same way. Move everything to
434 the directory crypto/aes, thereby obsoleting crypto/rijndael.
435 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
437 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
438 [Ben Laurie and Theo de Raadt]
440 *) Add option to output public keys in req command.
441 [Massimiliano Pala madwolf@openca.org]
443 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
444 (up to about 10% better than before for P-192 and P-224).
447 *) New functions/macros
449 SSL_CTX_set_msg_callback(ctx, cb)
450 SSL_CTX_set_msg_callback_arg(ctx, arg)
451 SSL_set_msg_callback(ssl, cb)
452 SSL_set_msg_callback_arg(ssl, arg)
454 to request calling a callback function
456 void cb(int write_p, int version, int content_type,
457 const void *buf, size_t len, SSL *ssl, void *arg)
459 whenever a protocol message has been completely received
460 (write_p == 0) or sent (write_p == 1). Here 'version' is the
461 protocol version according to which the SSL library interprets
462 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
463 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
464 the content type as defined in the SSL 3.0/TLS 1.0 protocol
465 specification (change_cipher_spec(20), alert(21), handshake(22)).
466 'buf' and 'len' point to the actual message, 'ssl' to the
467 SSL object, and 'arg' is the application-defined value set by
468 SSL[_CTX]_set_msg_callback_arg().
470 'openssl s_client' and 'openssl s_server' have new '-msg' options
471 to enable a callback that displays all protocol messages.
474 *) Change the shared library support so shared libraries are built as
475 soon as the corresponding static library is finished, and thereby get
476 openssl and the test programs linked against the shared library.
477 This still only happens when the keyword "shard" has been given to
478 the configuration scripts.
480 NOTE: shared library support is still an experimental thing, and
481 backward binary compatibility is still not guaranteed.
482 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
484 *) Add support for Subject Information Access extension.
485 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
487 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
488 additional bytes when new memory had to be allocated, not just
489 when reusing an existing buffer.
492 *) New command line and configuration option 'utf8' for the req command.
493 This allows field values to be specified as UTF8 strings.
496 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
497 runs for the former and machine-readable output for the latter.
500 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
501 of the e-mail address in the DN (i.e., it will go into a certificate
502 extension only). The new configuration file option 'email_in_dn = no'
504 [Massimiliano Pala madwolf@openca.org]
506 *) Change all functions with names starting with des_ to be starting
507 with DES_ instead. Add wrappers that are compatible with libdes,
508 but are named _ossl_old_des_*. Finally, add macros that map the
509 des_* symbols to the corresponding _ossl_old_des_* if libdes
510 compatibility is desired. If OpenSSL 0.9.6c compatibility is
511 desired, the des_* symbols will be mapped to DES_*, with one
514 Since we provide two compatibility mappings, the user needs to
515 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
516 compatibility is desired. The default (i.e., when that macro
517 isn't defined) is OpenSSL 0.9.6c compatibility.
519 There are also macros that enable and disable the support of old
520 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
521 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
522 are defined, the default will apply: to support the old des routines.
524 In either case, one must include openssl/des.h to get the correct
525 definitions. Do not try to just include openssl/des_old.h, that
528 NOTE: This is a major break of an old API into a new one. Software
529 authors are encouraged to switch to the DES_ style functions. Some
530 time in the future, des_old.h and the libdes compatibility functions
531 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
532 default), and then completely removed.
535 *) Test for certificates which contain unsupported critical extensions.
536 If such a certificate is found during a verify operation it is
537 rejected by default: this behaviour can be overridden by either
538 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
539 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
540 X509_supported_extension() has also been added which returns 1 if a
541 particular extension is supported.
544 *) Modify the behaviour of EVP cipher functions in similar way to digests
545 to retain compatibility with existing code.
548 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
549 compatibility with existing code. In particular the 'ctx' parameter does
550 not have to be to be initialized before the call to EVP_DigestInit() and
551 it is tidied up after a call to EVP_DigestFinal(). New function
552 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
553 EVP_MD_CTX_copy() changed to not require the destination to be
554 initialized valid and new function EVP_MD_CTX_copy_ex() added which
555 requires the destination to be valid.
557 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
558 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
561 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
562 so that complete 'Handshake' protocol structures are kept in memory
563 instead of overwriting 'msg_type' and 'length' with 'body' data.
566 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
567 [Massimo Santin via Richard Levitte]
569 *) Major restructuring to the underlying ENGINE code. This includes
570 reduction of linker bloat, separation of pure "ENGINE" manipulation
571 (initialisation, etc) from functionality dealing with implementations
572 of specific crypto iterfaces. This change also introduces integrated
573 support for symmetric ciphers and digest implementations - so ENGINEs
574 can now accelerate these by providing EVP_CIPHER and EVP_MD
575 implementations of their own. This is detailed in crypto/engine/README
576 as it couldn't be adequately described here. However, there are a few
577 API changes worth noting - some RSA, DSA, DH, and RAND functions that
578 were changed in the original introduction of ENGINE code have now
579 reverted back - the hooking from this code to ENGINE is now a good
580 deal more passive and at run-time, operations deal directly with
581 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
582 dereferencing through an ENGINE pointer any more. Also, the ENGINE
583 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
584 they were not being used by the framework as there is no concept of a
585 BIGNUM_METHOD and they could not be generalised to the new
586 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
587 ENGINE_cpy() has been removed as it cannot be consistently defined in
591 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
594 *) Change mkdef.pl to sort symbols that get the same entry number,
595 and make sure the automatically generated functions ERR_load_*
596 become part of libeay.num as well.
599 *) New function SSL_renegotiate_pending(). This returns true once
600 renegotiation has been requested (either SSL_renegotiate() call
601 or HelloRequest/ClientHello receveived from the peer) and becomes
602 false once a handshake has been completed.
603 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
604 sends a HelloRequest, but does not ensure that a handshake takes
605 place. SSL_renegotiate_pending() is useful for checking if the
606 client has followed the request.)
609 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
610 By default, clients may request session resumption even during
611 renegotiation (if session ID contexts permit); with this option,
612 session resumption is possible only in the first handshake.
614 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
615 more bits available for options that should not be part of
616 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
619 *) Add some demos for certificate and certificate request creation.
622 *) Make maximum certificate chain size accepted from the peer application
623 settable (SSL*_get/set_max_cert_list()), as proposed by
624 "Douglas E. Engert" <deengert@anl.gov>.
627 *) Add support for shared libraries for Unixware-7
628 (Boyd Lynn Gerber <gerberb@zenez.com>).
631 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
632 be done prior to destruction. Use this to unload error strings from
633 ENGINEs that load their own error strings. NB: This adds two new API
634 functions to "get" and "set" this destroy handler in an ENGINE.
637 *) Alter all existing ENGINE implementations (except "openssl" and
638 "openbsd") to dynamically instantiate their own error strings. This
639 makes them more flexible to be built both as statically-linked ENGINEs
640 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
641 Also, add stub code to each that makes building them as self-contained
642 shared-libraries easier (see README.ENGINE).
645 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
646 implementations into applications that are completely implemented in
647 self-contained shared-libraries. The "dynamic" ENGINE exposes control
648 commands that can be used to configure what shared-library to load and
649 to control aspects of the way it is handled. Also, made an update to
650 the README.ENGINE file that brings its information up-to-date and
651 provides some information and instructions on the "dynamic" ENGINE
652 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
655 *) Make it possible to unload ranges of ERR strings with a new
656 "ERR_unload_strings" function.
659 *) Add a copy() function to EVP_MD.
662 *) Make EVP_MD routines take a context pointer instead of just the
663 md_data void pointer.
666 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
667 that the digest can only process a single chunk of data
668 (typically because it is provided by a piece of
669 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
670 is only going to provide a single chunk of data, and hence the
671 framework needn't accumulate the data for oneshot drivers.
674 *) As with "ERR", make it possible to replace the underlying "ex_data"
675 functions. This change also alters the storage and management of global
676 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
677 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
678 index counters. The API functions that use this state have been changed
679 to take a "class_index" rather than pointers to the class's local STACK
680 and counter, and there is now an API function to dynamically create new
681 classes. This centralisation allows us to (a) plug a lot of the
682 thread-safety problems that existed, and (b) makes it possible to clean
683 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
684 such data would previously have always leaked in application code and
685 workarounds were in place to make the memory debugging turn a blind eye
686 to it. Application code that doesn't use this new function will still
687 leak as before, but their memory debugging output will announce it now
688 rather than letting it slide.
690 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
691 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
692 has a return value to indicate success or failure.
695 *) Make it possible to replace the underlying "ERR" functions such that the
696 global state (2 LHASH tables and 2 locks) is only used by the "default"
697 implementation. This change also adds two functions to "get" and "set"
698 the implementation prior to it being automatically set the first time
699 any other ERR function takes place. Ie. an application can call "get",
700 pass the return value to a module it has just loaded, and that module
701 can call its own "set" function using that value. This means the
702 module's "ERR" operations will use (and modify) the error state in the
703 application and not in its own statically linked copy of OpenSSL code.
706 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
707 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
708 the operation, and provides a more encapsulated way for external code
709 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
710 to use these functions rather than manually incrementing the counts.
712 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
715 *) Add EVP test program.
718 *) Add symmetric cipher support to ENGINE. Expect the API to change!
721 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
722 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
723 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
724 These allow a CRL to be built without having to access X509_CRL fields
725 directly. Modify 'ca' application to use new functions.
728 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
729 bug workarounds. Rollback attack detection is a security feature.
730 The problem will only arise on OpenSSL servers when TLSv1 is not
731 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
732 Software authors not wanting to support TLSv1 will have special reasons
733 for their choice and can explicitly enable this option.
734 [Bodo Moeller, Lutz Jaenicke]
736 *) Rationalise EVP so it can be extended: don't include a union of
737 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
738 (similar to those existing for EVP_CIPHER_CTX).
743 EVP_MD_CTX_init(&md); /* new function call */
744 EVP_DigestInit(&md, EVP_sha1());
745 EVP_DigestUpdate(&md, in, len);
746 EVP_DigestFinal(&md, out, NULL);
747 EVP_MD_CTX_cleanup(&md); /* new function call */
751 *) Make DES key schedule conform to the usual scheme, as well as
752 correcting its structure. This means that calls to DES functions
753 now have to pass a pointer to a des_key_schedule instead of a
754 plain des_key_schedule (which was actually always a pointer
759 des_set_key_checked(..., &ks);
760 des_ncbc_encrypt(..., &ks, ...);
762 (Note that a later change renames 'des_...' into 'DES_...'.)
765 *) Initial reduction of linker bloat: the use of some functions, such as
766 PEM causes large amounts of unused functions to be linked in due to
767 poor organisation. For example pem_all.c contains every PEM function
768 which has a knock on effect of linking in large amounts of (unused)
769 ASN1 code. Grouping together similar functions and splitting unrelated
770 functions prevents this.
773 *) Cleanup of EVP macros.
776 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
780 *) Add initial OCSP responder support to ocsp application. The
781 revocation information is handled using the text based index
782 use by the ca application. The responder can either handle
783 requests generated internally, supplied in files (for example
784 via a CGI script) or using an internal minimal server.
787 *) Add configuration choices to get zlib compression for TLS.
790 *) Changes to Kerberos SSL for RFC 2712 compliance:
791 1. Implemented real KerberosWrapper, instead of just using
792 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
793 2. Implemented optional authenticator field of KerberosWrapper.
795 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
796 and authenticator structs; see crypto/krb5/.
798 Generalized Kerberos calls to support multiple Kerberos libraries.
799 [Vern Staats <staatsvr@asc.hpc.mil>,
800 Jeffrey Altman <jaltman@columbia.edu>
803 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
804 already does with RSA. testdsa.h now has 'priv_key/pub_key'
805 values for each of the key sizes rather than having just
806 parameters (and 'speed' generating keys each time).
809 *) Speed up EVP routines.
812 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
813 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
814 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
815 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
817 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
818 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
819 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
822 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
824 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
827 *) Added the OS2-EMX target.
828 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
830 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
831 to support NCONF routines in extension code. New function CONF_set_nconf()
832 to allow functions which take an NCONF to also handle the old LHASH
833 structure: this means that the old CONF compatible routines can be
834 retained (in particular wrt extensions) without having to duplicate the
835 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
838 *) Enhance the general user interface with mechanisms for inner control
839 and with possibilities to have yes/no kind of prompts.
842 *) Change all calls to low level digest routines in the library and
843 applications to use EVP. Add missing calls to HMAC_cleanup() and
844 don't assume HMAC_CTX can be copied using memcpy().
845 [Verdon Walker <VWalker@novell.com>, Steve Henson]
847 *) Add the possibility to control engines through control names but with
848 arbitrary arguments instead of just a string.
849 Change the key loaders to take a UI_METHOD instead of a callback
850 function pointer. NOTE: this breaks binary compatibility with earlier
851 versions of OpenSSL [engine].
852 Adapt the nCipher code for these new conditions and add a card insertion
856 *) Enhance the general user interface with mechanisms to better support
857 dialog box interfaces, application-defined prompts, the possibility
858 to use defaults (for example default passwords from somewhere else)
859 and interrupts/cancellations.
862 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
863 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
866 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
867 tidy up some unnecessarily weird code in 'sk_new()').
868 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
870 *) Change the key loading routines for ENGINEs to use the same kind
871 callback (pem_password_cb) as all other routines that need this
875 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
876 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
877 than this minimum value is recommended.
880 *) New random seeder for OpenVMS, using the system process statistics
881 that are easily reachable.
884 *) Windows apparently can't transparently handle global
885 variables defined in DLLs. Initialisations such as:
887 const ASN1_ITEM *it = &ASN1_INTEGER_it;
889 wont compile. This is used by the any applications that need to
890 declare their own ASN1 modules. This was fixed by adding the option
891 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
892 needed for static libraries under Win32.
895 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
896 setting of purpose and trust fields. New X509_STORE trust and
897 purpose functions and tidy up setting in other SSL functions.
900 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
901 structure. These are inherited by X509_STORE_CTX when it is
902 initialised. This allows various defaults to be set in the
903 X509_STORE structure (such as flags for CRL checking and custom
904 purpose or trust settings) for functions which only use X509_STORE_CTX
905 internally such as S/MIME.
907 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
908 trust settings if they are not set in X509_STORE. This allows X509_STORE
909 purposes and trust (in S/MIME for example) to override any set by default.
911 Add command line options for CRL checking to smime, s_client and s_server
915 *) Initial CRL based revocation checking. If the CRL checking flag(s)
916 are set then the CRL is looked up in the X509_STORE structure and
917 its validity and signature checked, then if the certificate is found
918 in the CRL the verify fails with a revoked error.
920 Various new CRL related callbacks added to X509_STORE_CTX structure.
922 Command line options added to 'verify' application to support this.
924 This needs some additional work, such as being able to handle multiple
925 CRLs with different times, extension based lookup (rather than just
926 by subject name) and ultimately more complete V2 CRL extension
930 *) Add a general user interface API (crypto/ui/). This is designed
931 to replace things like des_read_password and friends (backward
932 compatibility functions using this new API are provided).
933 The purpose is to remove prompting functions from the DES code
934 section as well as provide for prompting through dialog boxes in
935 a window system and the like.
938 *) Add "ex_data" support to ENGINE so implementations can add state at a
939 per-structure level rather than having to store it globally.
942 *) Make it possible for ENGINE structures to be copied when retrieved by
943 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
944 This causes the "original" ENGINE structure to act like a template,
945 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
946 operational state can be localised to each ENGINE structure, despite the
947 fact they all share the same "methods". New ENGINE structures returned in
948 this case have no functional references and the return value is the single
949 structural reference. This matches the single structural reference returned
950 by ENGINE_by_id() normally, when it is incremented on the pre-existing
954 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
955 needs to match any other type at all we need to manually clear the
959 *) Changes to the "openssl engine" utility to include;
960 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
961 about an ENGINE's available control commands.
962 - executing control commands from command line arguments using the
963 '-pre' and '-post' switches. '-post' is only used if '-t' is
964 specified and the ENGINE is successfully initialised. The syntax for
965 the individual commands are colon-separated, for example;
966 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
969 *) New dynamic control command support for ENGINEs. ENGINEs can now
970 declare their own commands (numbers), names (strings), descriptions,
971 and input types for run-time discovery by calling applications. A
972 subset of these commands are implicitly classed as "executable"
973 depending on their input type, and only these can be invoked through
974 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
975 can be based on user input, config files, etc). The distinction is
976 that "executable" commands cannot return anything other than a boolean
977 result and can only support numeric or string input, whereas some
978 discoverable commands may only be for direct use through
979 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
980 pointers, or other custom uses. The "executable" commands are to
981 support parameterisations of ENGINE behaviour that can be
982 unambiguously defined by ENGINEs and used consistently across any
983 OpenSSL-based application. Commands have been added to all the
984 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
985 control over shared-library paths without source code alterations.
988 *) Changed all ENGINE implementations to dynamically allocate their
989 ENGINEs rather than declaring them statically. Apart from this being
990 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
991 this also allows the implementations to compile without using the
992 internal engine_int.h header.
995 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
996 'const' value. Any code that should be able to modify a RAND_METHOD
997 should already have non-const pointers to it (ie. they should only
998 modify their own ones).
1001 *) Made a variety of little tweaks to the ENGINE code.
1002 - "atalla" and "ubsec" string definitions were moved from header files
1003 to C code. "nuron" string definitions were placed in variables
1004 rather than hard-coded - allowing parameterisation of these values
1005 later on via ctrl() commands.
1006 - Removed unused "#if 0"'d code.
1007 - Fixed engine list iteration code so it uses ENGINE_free() to release
1008 structural references.
1009 - Constified the RAND_METHOD element of ENGINE structures.
1010 - Constified various get/set functions as appropriate and added
1011 missing functions (including a catch-all ENGINE_cpy that duplicates
1012 all ENGINE values onto a new ENGINE except reference counts/state).
1013 - Removed NULL parameter checks in get/set functions. Setting a method
1014 or function to NULL is a way of cancelling out a previously set
1015 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1016 and doesn't justify the extra error symbols and code.
1017 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1018 flags from engine_int.h to engine.h.
1019 - Changed prototypes for ENGINE handler functions (init(), finish(),
1020 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1023 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1024 to the algorithm using long division. The binary algorithm can be
1025 used only if the modulus is odd. On 32-bit systems, it is faster
1026 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1027 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1028 up to 450 bits. In 64-bit environments, the binary algorithm
1029 appears to be advantageous for much longer moduli; here we use it
1030 for moduli up to 2048 bits.
1033 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1034 could not support the combine flag in choice fields.
1037 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1038 extensions from a certificate request to the certificate.
1041 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1042 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1043 file: this allows the display of the certificate about to be
1044 signed to be customised, to allow certain fields to be included
1045 or excluded and extension details. The old system didn't display
1046 multicharacter strings properly, omitted fields not in the policy
1047 and couldn't display additional details such as extensions.
1050 *) Function EC_POINTs_mul for multiple scalar multiplication
1051 of an arbitrary number of elliptic curve points
1052 \sum scalars[i]*points[i],
1053 optionally including the generator defined for the EC_GROUP:
1054 scalar*generator + \sum scalars[i]*points[i].
1056 EC_POINT_mul is a simple wrapper function for the typical case
1057 that the point list has just one item (besides the optional
1061 *) First EC_METHODs for curves over GF(p):
1063 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1064 operations and provides various method functions that can also
1065 operate with faster implementations of modular arithmetic.
1067 EC_GFp_mont_method() reuses most functions that are part of
1068 EC_GFp_simple_method, but uses Montgomery arithmetic.
1070 [Bodo Moeller; point addition and point doubling
1071 implementation directly derived from source code provided by
1072 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1074 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1075 crypto/ec/ec_lib.c):
1077 Curves are EC_GROUP objects (with an optional group generator)
1078 based on EC_METHODs that are built into the library.
1080 Points are EC_POINT objects based on EC_GROUP objects.
1082 Most of the framework would be able to handle curves over arbitrary
1083 finite fields, but as there are no obvious types for fields other
1084 than GF(p), some functions are limited to that for now.
1087 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1088 that the file contains a complete HTTP response.
1091 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1092 change the def and num file printf format specifier from "%-40sXXX"
1093 to "%-39s XXX". The latter will always guarantee a space after the
1094 field while the former will cause them to run together if the field
1095 is 40 of more characters long.
1098 *) Constify the cipher and digest 'method' functions and structures
1099 and modify related functions to take constant EVP_MD and EVP_CIPHER
1103 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1104 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1107 *) Modify EVP_Digest*() routines so they now return values. Although the
1108 internal software routines can never fail additional hardware versions
1112 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1114 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1115 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1118 ERR_R_NESTED_ASN1_ERROR
1120 ERR_R_MISSING_ASN1_EOS
1121 were 4 .. 9, conflicting with
1122 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1124 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1125 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1127 Add new error code 'ERR_R_INTERNAL_ERROR'.
1130 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1134 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1135 sets the subject name for a new request or supersedes the
1136 subject name in a given request. Formats that can be parsed are
1137 'CN=Some Name, OU=myOU, C=IT'
1139 'CN=Some Name/OU=myOU/C=IT'.
1141 Add options '-batch' and '-verbose' to 'openssl req'.
1142 [Massimiliano Pala <madwolf@hackmasters.net>]
1144 *) Introduce the possibility to access global variables through
1145 functions on platform were that's the best way to handle exporting
1146 global variables in shared libraries. To enable this functionality,
1147 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1148 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1149 is normally done by Configure or something similar).
1151 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1152 in the source file (foo.c) like this:
1154 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1155 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1157 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1158 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1160 OPENSSL_DECLARE_GLOBAL(int,foo);
1161 #define foo OPENSSL_GLOBAL_REF(foo)
1162 OPENSSL_DECLARE_GLOBAL(double,bar);
1163 #define bar OPENSSL_GLOBAL_REF(bar)
1165 The #defines are very important, and therefore so is including the
1166 header file everywhere where the defined globals are used.
1168 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1169 of ASN.1 items, but that structure is a bit different.
1171 The largest change is in util/mkdef.pl which has been enhanced with
1172 better and easier to understand logic to choose which symbols should
1173 go into the Windows .def files as well as a number of fixes and code
1174 cleanup (among others, algorithm keywords are now sorted
1175 lexicographically to avoid constant rewrites).
1178 *) In BN_div() keep a copy of the sign of 'num' before writing the
1179 result to 'rm' because if rm==num the value will be overwritten
1180 and produce the wrong result if 'num' is negative: this caused
1181 problems with BN_mod() and BN_nnmod().
1184 *) Function OCSP_request_verify(). This checks the signature on an
1185 OCSP request and verifies the signer certificate. The signer
1186 certificate is just checked for a generic purpose and OCSP request
1190 *) Add OCSP_check_validity() function to check the validity of OCSP
1191 responses. OCSP responses are prepared in real time and may only
1192 be a few seconds old. Simply checking that the current time lies
1193 between thisUpdate and nextUpdate max reject otherwise valid responses
1194 caused by either OCSP responder or client clock inaccuracy. Instead
1195 we allow thisUpdate and nextUpdate to fall within a certain period of
1196 the current time. The age of the response can also optionally be
1197 checked. Two new options -validity_period and -status_age added to
1201 *) If signature or public key algorithm is unrecognized print out its
1202 OID rather that just UNKNOWN.
1205 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1206 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1207 ID to be generated from the issuer certificate alone which can then be
1208 passed to OCSP_id_issuer_cmp().
1211 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1212 ASN1 modules to export functions returning ASN1_ITEM pointers
1213 instead of the ASN1_ITEM structures themselves. This adds several
1214 new macros which allow the underlying ASN1 function/structure to
1215 be accessed transparently. As a result code should not use ASN1_ITEM
1216 references directly (such as &X509_it) but instead use the relevant
1217 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1218 use of the new ASN1 code on platforms where exporting structures
1219 is problematical (for example in shared libraries) but exporting
1220 functions returning pointers to structures is not.
1223 *) Add support for overriding the generation of SSL/TLS session IDs.
1224 These callbacks can be registered either in an SSL_CTX or per SSL.
1225 The purpose of this is to allow applications to control, if they wish,
1226 the arbitrary values chosen for use as session IDs, particularly as it
1227 can be useful for session caching in multiple-server environments. A
1228 command-line switch for testing this (and any client code that wishes
1229 to use such a feature) has been added to "s_server".
1230 [Geoff Thorpe, Lutz Jaenicke]
1232 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1233 of the form '#if defined(...) || defined(...) || ...' and
1234 '#if !defined(...) && !defined(...) && ...'. This also avoids
1235 the growing number of special cases it was previously handling.
1238 *) Make all configuration macros available for application by making
1239 sure they are available in opensslconf.h, by giving them names starting
1240 with "OPENSSL_" to avoid conflicts with other packages and by making
1241 sure e_os2.h will cover all platform-specific cases together with
1243 Additionally, it is now possible to define configuration/platform-
1244 specific names (called "system identities"). In the C code, these
1245 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1246 macro with the name beginning with "OPENSSL_SYS_", which is determined
1247 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1251 *) New option -set_serial to 'req' and 'x509' this allows the serial
1252 number to use to be specified on the command line. Previously self
1253 signed certificates were hard coded with serial number 0 and the
1254 CA options of 'x509' had to use a serial number in a file which was
1258 *) New options to 'ca' utility to support V2 CRL entry extensions.
1259 Currently CRL reason, invalidity date and hold instruction are
1260 supported. Add new CRL extensions to V3 code and some new objects.
1263 *) New function EVP_CIPHER_CTX_set_padding() this is used to
1264 disable standard block padding (aka PKCS#5 padding) in the EVP
1265 API, which was previously mandatory. This means that the data is
1266 not padded in any way and so the total length much be a multiple
1267 of the block size, otherwise an error occurs.
1270 *) Initial (incomplete) OCSP SSL support.
1273 *) New function OCSP_parse_url(). This splits up a URL into its host,
1274 port and path components: primarily to parse OCSP URLs. New -url
1275 option to ocsp utility.
1278 *) New nonce behavior. The return value of OCSP_check_nonce() now
1279 reflects the various checks performed. Applications can decide
1280 whether to tolerate certain situations such as an absent nonce
1281 in a response when one was present in a request: the ocsp application
1282 just prints out a warning. New function OCSP_add1_basic_nonce()
1283 this is to allow responders to include a nonce in a response even if
1284 the request is nonce-less.
1287 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1288 skipped when using openssl x509 multiple times on a single input file,
1289 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1292 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1293 set string type: to handle setting ASN1_TIME structures. Fix ca
1294 utility to correctly initialize revocation date of CRLs.
1297 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1298 the clients preferred ciphersuites and rather use its own preferences.
1299 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1300 Internet Explorer by ensuring unchanged hash method during stepup.
1301 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1304 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1305 to aes and add a new 'exist' option to print out symbols that don't
1309 *) Additional options to ocsp utility to allow flags to be set and
1310 additional certificates supplied.
1313 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1314 OCSP client a number of certificate to only verify the response
1318 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1319 handle the new API. Currently only ECB, CBC modes supported. Add new
1322 Add TLS AES ciphersuites as described in RFC3268, "Advanced
1323 Encryption Standard (AES) Ciphersuites for Transport Layer
1324 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
1325 not enabled by default and were not part of the "ALL" ciphersuite
1326 alias because they were not yet official; they could be
1327 explicitly requested by specifying the "AESdraft" ciphersuite
1328 group alias. In the final release of OpenSSL 0.9.7, the group
1329 alias is called "AES" and is part of "ALL".)
1330 [Ben Laurie, Steve Henson, Bodo Moeller]
1332 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1333 request to response.
1336 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1337 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1338 extract information from a certificate request. OCSP_response_create()
1339 creates a response and optionally adds a basic response structure.
1340 OCSP_basic_add1_status() adds a complete single response to a basic
1341 response and returns the OCSP_SINGLERESP structure just added (to allow
1342 extensions to be included for example). OCSP_basic_add1_cert() adds a
1343 certificate to a basic response and OCSP_basic_sign() signs a basic
1344 response with various flags. New helper functions ASN1_TIME_check()
1345 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1346 (converts ASN1_TIME to GeneralizedTime).
1349 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1350 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1351 structure from a certificate. X509_pubkey_digest() digests the public_key
1352 contents: this is used in various key identifiers.
1355 *) Make sk_sort() tolerate a NULL argument.
1356 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1358 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1359 passed by the function are trusted implicitly. If any of them signed the
1360 response then it is assumed to be valid and is not verified.
1363 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1364 to data. This was previously part of the PKCS7 ASN1 code. This
1365 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1366 [Steve Henson, reported by Kenneth R. Robinette
1367 <support@securenetterm.com>]
1369 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1370 routines: without these tracing memory leaks is very painful.
1371 Fix leaks in PKCS12 and PKCS7 routines.
1374 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1375 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1376 effectively meant GeneralizedTime would never be used. Now it
1377 is initialised to -1 but X509_time_adj() now has to check the value
1378 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1379 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1380 [Steve Henson, reported by Kenneth R. Robinette
1381 <support@securenetterm.com>]
1383 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1384 result in a zero length in the ASN1_INTEGER structure which was
1385 not consistent with the structure when d2i_ASN1_INTEGER() was used
1386 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1387 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1388 where it did not print out a minus for negative ASN1_INTEGER.
1391 *) Add summary printout to ocsp utility. The various functions which
1392 convert status values to strings have been renamed to:
1393 OCSP_response_status_str(), OCSP_cert_status_str() and
1394 OCSP_crl_reason_str() and are no longer static. New options
1395 to verify nonce values and to disable verification. OCSP response
1396 printout format cleaned up.
1399 *) Add additional OCSP certificate checks. These are those specified
1400 in RFC2560. This consists of two separate checks: the CA of the
1401 certificate being checked must either be the OCSP signer certificate
1402 or the issuer of the OCSP signer certificate. In the latter case the
1403 OCSP signer certificate must contain the OCSP signing extended key
1404 usage. This check is performed by attempting to match the OCSP
1405 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1406 in the OCSP_CERTID structures of the response.
1409 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1410 and related routines. This uses the standard OpenSSL certificate
1411 verify routines to perform initial checks (just CA validity) and
1412 to obtain the certificate chain. Then additional checks will be
1413 performed on the chain. Currently the root CA is checked to see
1414 if it is explicitly trusted for OCSP signing. This is used to set
1415 a root CA as a global signing root: that is any certificate that
1416 chains to that CA is an acceptable OCSP signing certificate.
1419 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1420 extensions from a separate configuration file.
1421 As when reading extensions from the main configuration file,
1422 the '-extensions ...' option may be used for specifying the
1424 [Massimiliano Pala <madwolf@comune.modena.it>]
1426 *) New OCSP utility. Allows OCSP requests to be generated or
1427 read. The request can be sent to a responder and the output
1428 parsed, outputed or printed in text form. Not complete yet:
1429 still needs to check the OCSP response validity.
1432 *) New subcommands for 'openssl ca':
1433 'openssl ca -status <serial>' prints the status of the cert with
1434 the given serial number (according to the index file).
1435 'openssl ca -updatedb' updates the expiry status of certificates
1437 [Massimiliano Pala <madwolf@comune.modena.it>]
1439 *) New '-newreq-nodes' command option to CA.pl. This is like
1440 '-newreq', but calls 'openssl req' with the '-nodes' option
1441 so that the resulting key is not encrypted.
1442 [Damien Miller <djm@mindrot.org>]
1444 *) New configuration for the GNU Hurd.
1445 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1447 *) Initial code to implement OCSP basic response verify. This
1448 is currently incomplete. Currently just finds the signer's
1449 certificate and verifies the signature on the response.
1452 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1453 value of OPENSSLDIR. This is available via the new '-d' option
1454 to 'openssl version', and is also included in 'openssl version -a'.
1457 *) Allowing defining memory allocation callbacks that will be given
1458 file name and line number information in additional arguments
1459 (a const char* and an int). The basic functionality remains, as
1460 well as the original possibility to just replace malloc(),
1461 realloc() and free() by functions that do not know about these
1462 additional arguments. To register and find out the current
1463 settings for extended allocation functions, the following
1464 functions are provided:
1466 CRYPTO_set_mem_ex_functions
1467 CRYPTO_set_locked_mem_ex_functions
1468 CRYPTO_get_mem_ex_functions
1469 CRYPTO_get_locked_mem_ex_functions
1471 These work the same way as CRYPTO_set_mem_functions and friends.
1472 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1473 extended allocation function is enabled.
1474 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1475 a conventional allocation function is enabled.
1476 [Richard Levitte, Bodo Moeller]
1478 *) Finish off removing the remaining LHASH function pointer casts.
1479 There should no longer be any prototype-casting required when using
1480 the LHASH abstraction, and any casts that remain are "bugs". See
1481 the callback types and macros at the head of lhash.h for details
1482 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1485 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1486 If /dev/[u]random devices are not available or do not return enough
1487 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1489 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1490 /etc/entropy will be queried once each in this sequence, quering stops
1491 when enough entropy was collected without querying more sockets.
1494 *) Change the Unix RAND_poll() variant to be able to poll several
1495 random devices, as specified by DEVRANDOM, until a sufficient amount
1496 of data has been collected. We spend at most 10 ms on each file
1497 (select timeout) and read in non-blocking mode. DEVRANDOM now
1498 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1499 (previously it was just the string "/dev/urandom"), so on typical
1500 platforms the 10 ms delay will never occur.
1501 Also separate out the Unix variant to its own file, rand_unix.c.
1502 For VMS, there's a currently-empty rand_vms.c.
1505 *) Move OCSP client related routines to ocsp_cl.c. These
1506 provide utility functions which an application needing
1507 to issue a request to an OCSP responder and analyse the
1508 response will typically need: as opposed to those which an
1509 OCSP responder itself would need which will be added later.
1511 OCSP_request_sign() signs an OCSP request with an API similar
1512 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1513 response. OCSP_response_get1_basic() extracts basic response
1514 from response. OCSP_resp_find_status(): finds and extracts status
1515 information from an OCSP_CERTID structure (which will be created
1516 when the request structure is built). These are built from lower
1517 level functions which work on OCSP_SINGLERESP structures but
1518 wont normally be used unless the application wishes to examine
1519 extensions in the OCSP response for example.
1521 Replace nonce routines with a pair of functions.
1522 OCSP_request_add1_nonce() adds a nonce value and optionally
1523 generates a random value. OCSP_check_nonce() checks the
1524 validity of the nonce in an OCSP response.
1527 *) Change function OCSP_request_add() to OCSP_request_add0_id().
1528 This doesn't copy the supplied OCSP_CERTID and avoids the
1529 need to free up the newly created id. Change return type
1530 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1531 This can then be used to add extensions to the request.
1532 Deleted OCSP_request_new(), since most of its functionality
1533 is now in OCSP_REQUEST_new() (and the case insensitive name
1534 clash) apart from the ability to set the request name which
1535 will be added elsewhere.
1538 *) Update OCSP API. Remove obsolete extensions argument from
1539 various functions. Extensions are now handled using the new
1540 OCSP extension code. New simple OCSP HTTP function which
1541 can be used to send requests and parse the response.
1544 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1545 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1546 uses the special reorder version of SET OF to sort the attributes
1547 and reorder them to match the encoded order. This resolves a long
1548 standing problem: a verify on a PKCS7 structure just after signing
1549 it used to fail because the attribute order did not match the
1550 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1551 it uses the received order. This is necessary to tolerate some broken
1552 software that does not order SET OF. This is handled by encoding
1553 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1554 to produce the required SET OF.
1557 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1558 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1559 files to get correct declarations of the ASN.1 item variables.
1562 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1563 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1564 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1565 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1566 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1567 ASN1_ITEM and no wrapper functions.
1570 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1571 replace the old function pointer based I/O routines. Change most of
1572 the *_d2i_bio() and *_d2i_fp() functions to use these.
1575 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1576 lines, recognice more "algorithms" that can be deselected, and make
1577 it complain about algorithm deselection that isn't recognised.
1580 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
1581 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1582 to use new functions. Add NO_ASN1_OLD which can be set to remove
1583 some old style ASN1 functions: this can be used to determine if old
1584 code will still work when these eventually go away.
1587 *) New extension functions for OCSP structures, these follow the
1588 same conventions as certificates and CRLs.
1591 *) New function X509V3_add1_i2d(). This automatically encodes and
1592 adds an extension. Its behaviour can be customised with various
1593 flags to append, replace or delete. Various wrappers added for
1594 certifcates and CRLs.
1597 *) Fix to avoid calling the underlying ASN1 print routine when
1598 an extension cannot be parsed. Correct a typo in the
1599 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1602 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1603 entries for variables.
1606 *) Add functionality to apps/openssl.c for detecting locking
1607 problems: As the program is single-threaded, all we have
1608 to do is register a locking callback using an array for
1609 storing which locks are currently held by the program.
1612 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
1613 SSL_get_ex_data_X509_STORE_idx(), which is used in
1614 ssl_verify_cert_chain() and thus can be called at any time
1615 during TLS/SSL handshakes so that thread-safety is essential.
1616 Unfortunately, the ex_data design is not at all suited
1617 for multi-threaded use, so it probably should be abolished.
1620 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
1621 [Broadcom, tweaked and integrated by Geoff Thorpe]
1623 *) Move common extension printing code to new function
1624 X509V3_print_extensions(). Reorganise OCSP print routines and
1625 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1628 *) New function X509_signature_print() to remove duplication in some
1632 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
1633 set (this was treated exactly the same as SET OF previously). This
1634 is used to reorder the STACK representing the structure to match the
1635 encoding. This will be used to get round a problem where a PKCS7
1636 structure which was signed could not be verified because the STACK
1637 order did not reflect the encoded order.
1640 *) Reimplement the OCSP ASN1 module using the new code.
1643 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
1644 for its ASN1 operations. The old style function pointers still exist
1645 for now but they will eventually go away.
1648 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
1649 completely replaces the old ASN1 functionality with a table driven
1650 encoder and decoder which interprets an ASN1_ITEM structure describing
1651 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
1652 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
1653 has also been converted to the new form.
1656 *) Change BN_mod_exp_recp so that negative moduli are tolerated
1657 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
1658 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
1659 for negative moduli.
1662 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
1663 of not touching the result's sign bit.
1666 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
1670 *) Changed the LHASH code to use prototypes for callbacks, and created
1671 macros to declare and implement thin (optionally static) functions
1672 that provide type-safety and avoid function pointer casting for the
1673 type-specific callbacks.
1676 *) Added Kerberos Cipher Suites to be used with TLS, as written in
1678 [Veers Staats <staatsvr@asc.hpc.mil>,
1679 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
1681 *) Reformat the FAQ so the different questions and answers can be divided
1682 in sections depending on the subject.
1685 *) Have the zlib compression code load ZLIB.DLL dynamically under
1689 *) New function BN_mod_sqrt for computing square roots modulo a prime
1690 (using the probabilistic Tonelli-Shanks algorithm unless
1691 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
1692 be handled deterministically).
1693 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1695 *) Make BN_mod_inverse faster by explicitly handling small quotients
1696 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
1697 512 bits], about 30% for larger ones [1024 or 2048 bits].)
1700 *) New function BN_kronecker.
1703 *) Fix BN_gcd so that it works on negative inputs; the result is
1704 positive unless both parameters are zero.
1705 Previously something reasonably close to an infinite loop was
1706 possible because numbers could be growing instead of shrinking
1707 in the implementation of Euclid's algorithm.
1710 *) Fix BN_is_word() and BN_is_one() macros to take into account the
1711 sign of the number in question.
1713 Fix BN_is_word(a,w) to work correctly for w == 0.
1715 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
1716 because its test if the absolute value of 'a' equals 'w'.
1717 Note that BN_abs_is_word does *not* handle w == 0 reliably;
1718 it exists mostly for use in the implementations of BN_is_zero(),
1719 BN_is_one(), and BN_is_word().
1722 *) New function BN_swap.
1725 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
1726 the exponentiation functions are more likely to produce reasonable
1727 results on negative inputs.
1730 *) Change BN_mod_mul so that the result is always non-negative.
1731 Previously, it could be negative if one of the factors was negative;
1732 I don't think anyone really wanted that behaviour.
1735 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
1736 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
1737 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
1738 and add new functions:
1747 BN_mod_lshift1_quick
1751 These functions always generate non-negative results.
1753 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
1754 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
1756 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
1757 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
1758 be reduced modulo m.
1759 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1762 The following entry accidentily appeared in the CHANGES file
1763 distributed with OpenSSL 0.9.7. The modifications described in
1764 it do *not* apply to OpenSSL 0.9.7.
1766 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1767 was actually never needed) and in BN_mul(). The removal in BN_mul()
1768 required a small change in bn_mul_part_recursive() and the addition
1769 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1770 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1771 bn_sub_words() and bn_add_words() except they take arrays with
1776 *) In 'openssl passwd', verify passwords read from the terminal
1777 unless the '-salt' option is used (which usually means that
1778 verification would just waste user's time since the resulting
1779 hash is going to be compared with some given password hash)
1780 or the new '-noverify' option is used.
1782 This is an incompatible change, but it does not affect
1783 non-interactive use of 'openssl passwd' (passwords on the command
1784 line, '-stdin' option, '-in ...' option) and thus should not
1788 *) Remove all references to RSAref, since there's no more need for it.
1791 *) Make DSO load along a path given through an environment variable
1792 (SHLIB_PATH) with shl_load().
1795 *) Constify the ENGINE code as a result of BIGNUM constification.
1796 Also constify the RSA code and most things related to it. In a
1797 few places, most notable in the depth of the ASN.1 code, ugly
1798 casts back to non-const were required (to be solved at a later
1802 *) Make it so the openssl application has all engines loaded by default.
1805 *) Constify the BIGNUM routines a little more.
1808 *) Add the following functions:
1810 ENGINE_load_cswift()
1812 ENGINE_load_atalla()
1814 ENGINE_load_builtin_engines()
1816 That way, an application can itself choose if external engines that
1817 are built-in in OpenSSL shall ever be used or not. The benefit is
1818 that applications won't have to be linked with libdl or other dso
1819 libraries unless it's really needed.
1821 Changed 'openssl engine' to load all engines on demand.
1822 Changed the engine header files to avoid the duplication of some
1823 declarations (they differed!).
1826 *) 'openssl engine' can now list capabilities.
1829 *) Better error reporting in 'openssl engine'.
1832 *) Never call load_dh_param(NULL) in s_server.
1835 *) Add engine application. It can currently list engines by name and
1836 identity, and test if they are actually available.
1839 *) Improve RPM specification file by forcing symbolic linking and making
1840 sure the installed documentation is also owned by root.root.
1841 [Damien Miller <djm@mindrot.org>]
1843 *) Give the OpenSSL applications more possibilities to make use of
1844 keys (public as well as private) handled by engines.
1847 *) Add OCSP code that comes from CertCo.
1850 *) Add VMS support for the Rijndael code.
1853 *) Added untested support for Nuron crypto accelerator.
1856 *) Add support for external cryptographic devices. This code was
1857 previously distributed separately as the "engine" branch.
1858 [Geoff Thorpe, Richard Levitte]
1860 *) Rework the filename-translation in the DSO code. It is now possible to
1861 have far greater control over how a "name" is turned into a filename
1862 depending on the operating environment and any oddities about the
1863 different shared library filenames on each system.
1866 *) Support threads on FreeBSD-elf in Configure.
1869 *) Fix for SHA1 assembly problem with MASM: it produces
1870 warnings about corrupt line number information when assembling
1871 with debugging information. This is caused by the overlapping
1873 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
1876 NCONF_get_number() has no error checking at all. As a replacement,
1877 NCONF_get_number_e() is defined (_e for "error checking") and is
1878 promoted strongly. The old NCONF_get_number is kept around for
1879 binary backward compatibility.
1880 Make it possible for methods to load from something other than a BIO,
1881 by providing a function pointer that is given a name instead of a BIO.
1882 For example, this could be used to load configuration data from an
1886 *) Fix for non blocking accept BIOs. Added new I/O special reason
1887 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
1888 with non blocking I/O was not possible because no retry code was
1889 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
1893 *) Added the beginnings of Rijndael support.
1896 *) Fix for bug in DirectoryString mask setting. Add support for
1897 X509_NAME_print_ex() in 'req' and X509_print_ex() function
1898 to allow certificate printing to more controllable, additional
1899 'certopt' option to 'x509' to allow new printing options to be
1903 *) Clean old EAY MD5 hack from e_os.h.
1906 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
1908 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1909 via timing by performing a MAC computation even if incorrrect
1910 block cipher padding has been found. This is a countermeasure
1911 against active attacks where the attacker has to distinguish
1912 between bad padding and a MAC verification error. (CAN-2003-0078)
1914 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1915 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1916 Martin Vuagnoux (EPFL, Ilion)]
1918 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
1920 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
1921 memory from it's contents. This is done with a counter that will
1922 place alternating values in each byte. This can be used to solve
1923 two issues: 1) the removal of calls to memset() by highly optimizing
1924 compilers, and 2) cleansing with other values than 0, since those can
1925 be read through on certain media, for example a swap space on disk.
1928 *) Bugfix: client side session caching did not work with external caching,
1929 because the session->cipher setting was not restored when reloading
1930 from the external cache. This problem was masked, when
1931 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
1932 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
1935 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
1936 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
1937 [Zeev Lieber <zeev-l@yahoo.com>]
1939 *) Undo an undocumented change introduced in 0.9.6e which caused
1940 repeated calls to OpenSSL_add_all_ciphers() and
1941 OpenSSL_add_all_digests() to be ignored, even after calling
1945 *) Change the default configuration reader to deal with last line not
1946 being properly terminated.
1949 *) Change X509_NAME_cmp() so it applies the special rules on handling
1950 DN values that are of type PrintableString, as well as RDNs of type
1951 emailAddress where the value has the type ia5String.
1952 [stefank@valicert.com via Richard Levitte]
1954 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
1955 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
1956 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
1957 the bitwise-OR of the two for use by the majority of applications
1958 wanting this behaviour, and update the docs. The documented
1959 behaviour and actual behaviour were inconsistent and had been
1960 changing anyway, so this is more a bug-fix than a behavioural
1962 [Geoff Thorpe, diagnosed by Nadav Har'El]
1964 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
1965 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
1968 *) Fix initialization code race conditions in
1969 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
1970 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
1971 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
1972 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
1973 ssl2_get_cipher_by_char(),
1974 ssl3_get_cipher_by_char().
1975 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
1977 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
1978 the cached sessions are flushed, as the remove_cb() might use ex_data
1979 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
1980 (see [openssl.org #212]).
1981 [Geoff Thorpe, Lutz Jaenicke]
1983 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
1984 length, instead of the encoding length to d2i_ASN1_OBJECT.
1987 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
1989 *) [In 0.9.6g-engine release:]
1990 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
1991 [Lynn Gazis <lgazis@rainbow.com>]
1993 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
1995 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
1996 and get fix the header length calculation.
1997 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
1998 Alon Kantor <alonk@checkpoint.com> (and others),
2001 *) Use proper error handling instead of 'assertions' in buffer
2002 overflow checks added in 0.9.6e. This prevents DoS (the
2003 assertions could call abort()).
2004 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2006 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2008 *) Add various sanity checks to asn1_get_length() to reject
2009 the ASN1 length bytes if they exceed sizeof(long), will appear
2010 negative or the content length exceeds the length of the
2012 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2014 *) Fix cipher selection routines: ciphers without encryption had no flags
2015 for the cipher strength set and where therefore not handled correctly
2016 by the selection routines (PR #130).
2019 *) Fix EVP_dsa_sha macro.
2023 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2024 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2025 that was added in OpenSSL 0.9.6d.
2027 As the countermeasure turned out to be incompatible with some
2028 broken SSL implementations, the new option is part of SSL_OP_ALL.
2029 SSL_OP_ALL is usually employed when compatibility with weird SSL
2030 implementations is desired (e.g. '-bugs' option to 's_client' and
2031 's_server'), so the new option is automatically set in many
2035 *) Changes in security patch:
2037 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2038 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2039 Air Force Materiel Command, USAF, under agreement number
2042 *) Add various sanity checks to asn1_get_length() to reject
2043 the ASN1 length bytes if they exceed sizeof(long), will appear
2044 negative or the content length exceeds the length of the
2045 supplied buffer. (CAN-2002-0659)
2046 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2048 *) Assertions for various potential buffer overflows, not known to
2050 [Ben Laurie (CHATS)]
2052 *) Various temporary buffers to hold ASCII versions of integers were
2053 too small for 64 bit platforms. (CAN-2002-0655)
2054 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2056 *) Remote buffer overflow in SSL3 protocol - an attacker could
2057 supply an oversized session ID to a client. (CAN-2002-0656)
2058 [Ben Laurie (CHATS)]
2060 *) Remote buffer overflow in SSL2 protocol - an attacker could
2061 supply an oversized client master key. (CAN-2002-0656)
2062 [Ben Laurie (CHATS)]
2064 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2066 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2067 encoded as NULL) with id-dsa-with-sha1.
2068 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2070 *) Check various X509_...() return values in apps/req.c.
2071 [Nils Larsch <nla@trustcenter.de>]
2073 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2074 an end-of-file condition would erronously be flagged, when the CRLF
2075 was just at the end of a processed block. The bug was discovered when
2076 processing data through a buffering memory BIO handing the data to a
2077 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2078 <ptsekov@syntrex.com> and Nedelcho Stanev.
2081 *) Implement a countermeasure against a vulnerability recently found
2082 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2083 before application data chunks to avoid the use of known IVs
2084 with data potentially chosen by the attacker.
2087 *) Fix length checks in ssl3_get_client_hello().
2090 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2091 to prevent ssl3_read_internal() from incorrectly assuming that
2092 ssl3_read_bytes() found application data while handshake
2093 processing was enabled when in fact s->s3->in_read_app_data was
2094 merely automatically cleared during the initial handshake.
2095 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2097 *) Fix object definitions for Private and Enterprise: they were not
2098 recognized in their shortname (=lowercase) representation. Extend
2099 obj_dat.pl to issue an error when using undefined keywords instead
2100 of silently ignoring the problem (Svenning Sorensen
2101 <sss@sss.dnsalias.net>).
2104 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2105 generators, i.e. generators other than 2 and 5. (Previously, the
2106 code did not properly initialise the 'add' and 'rem' values to
2107 BN_generate_prime().)
2109 In the new general case, we do not insist that 'generator' is
2110 actually a primitive root: This requirement is rather pointless;
2111 a generator of the order-q subgroup is just as good, if not
2115 *) Map new X509 verification errors to alerts. Discovered and submitted by
2116 Tom Wu <tom@arcot.com>.
2119 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2120 returning non-zero before the data has been completely received
2121 when using non-blocking I/O.
2122 [Bodo Moeller; problem pointed out by John Hughes]
2124 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2125 [Ben Laurie, Lutz Jaenicke]
2127 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2128 Yoram Zahavi <YoramZ@gilian.com>).
2131 *) Add information about CygWin 1.3 and on, and preserve proper
2132 configuration for the versions before that.
2133 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2135 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
2136 check whether we deal with a copy of a session and do not delete from
2137 the cache in this case. Problem reported by "Izhar Shoshani Levi"
2138 <izhar@checkpoint.com>.
2141 *) Do not store session data into the internal session cache, if it
2142 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
2143 flag is set). Proposed by Aslam <aslam@funk.com>.
2146 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
2150 *) [In 0.9.6d-engine release:]
2151 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2152 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2154 *) Add the configuration target linux-s390x.
2155 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
2157 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
2158 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
2159 variable as an indication that a ClientHello message has been
2160 received. As the flag value will be lost between multiple
2161 invocations of ssl3_accept when using non-blocking I/O, the
2162 function may not be aware that a handshake has actually taken
2163 place, thus preventing a new session from being added to the
2166 To avoid this problem, we now set s->new_session to 2 instead of
2167 using a local variable.
2168 [Lutz Jaenicke, Bodo Moeller]
2170 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
2171 if the SSL_R_LENGTH_MISMATCH error is detected.
2172 [Geoff Thorpe, Bodo Moeller]
2174 *) New 'shared_ldflag' column in Configure platform table.
2177 *) Fix EVP_CIPHER_mode macro.
2178 ["Dan S. Camper" <dan@bti.net>]
2180 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
2181 type, we must throw them away by setting rr->length to 0.
2182 [D P Chang <dpc@qualys.com>]
2184 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
2186 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
2187 <Dominikus.Scherkl@biodata.com>. (The previous implementation
2188 worked incorrectly for those cases where range = 10..._2 and
2189 3*range is two bits longer than range.)
2192 *) Only add signing time to PKCS7 structures if it is not already
2196 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
2197 OBJ_ld_ce should be OBJ_id_ce.
2198 Also some ip-pda OIDs in crypto/objects/objects.txt were
2199 incorrect (cf. RFC 3039).
2200 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
2202 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
2203 returns early because it has nothing to do.
2204 [Andy Schneider <andy.schneider@bjss.co.uk>]
2206 *) [In 0.9.6c-engine release:]
2207 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
2208 [Andy Schneider <andy.schneider@bjss.co.uk>]
2210 *) [In 0.9.6c-engine release:]
2211 Add support for Cryptographic Appliance's keyserver technology.
2212 (Use engine 'keyclient')
2213 [Cryptographic Appliances and Geoff Thorpe]
2215 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
2216 is called via tools/c89.sh because arguments have to be
2217 rearranged (all '-L' options must appear before the first object
2219 [Richard Shapiro <rshapiro@abinitio.com>]
2221 *) [In 0.9.6c-engine release:]
2222 Add support for Broadcom crypto accelerator cards, backported
2224 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
2226 *) [In 0.9.6c-engine release:]
2227 Add support for SureWare crypto accelerator cards from
2228 Baltimore Technologies. (Use engine 'sureware')
2229 [Baltimore Technologies and Mark Cox]
2231 *) [In 0.9.6c-engine release:]
2232 Add support for crypto accelerator cards from Accelerated
2233 Encryption Processing, www.aep.ie. (Use engine 'aep')
2234 [AEP Inc. and Mark Cox]
2236 *) Add a configuration entry for gcc on UnixWare.
2237 [Gary Benson <gbenson@redhat.com>]
2239 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
2240 messages are stored in a single piece (fixed-length part and
2241 variable-length part combined) and fix various bugs found on the way.
2244 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
2245 instead. BIO_gethostbyname() does not know what timeouts are
2246 appropriate, so entries would stay in cache even when they have
2248 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
2250 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
2251 faced with a pathologically small ClientHello fragment that does
2252 not contain client_version: Instead of aborting with an error,
2253 simply choose the highest available protocol version (i.e.,
2254 TLS 1.0 unless it is disabled). In practice, ClientHello
2255 messages are never sent like this, but this change gives us
2256 strictly correct behaviour at least for TLS.
2259 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
2260 never resets s->method to s->ctx->method when called from within
2261 one of the SSL handshake functions.
2262 [Bodo Moeller; problem pointed out by Niko Baric]
2264 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
2265 (sent using the client's version number) if client_version is
2266 smaller than the protocol version in use. Also change
2267 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
2268 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
2269 the client will at least see that alert.
2272 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
2276 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
2277 client receives HelloRequest while in a handshake.
2278 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
2280 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
2281 should end in 'break', not 'goto end' which circuments various
2282 cleanups done in state SSL_ST_OK. But session related stuff
2283 must be disabled for SSL_ST_OK in the case that we just sent a
2286 Also avoid some overhead by not calling ssl_init_wbio_buffer()
2287 before just sending a HelloRequest.
2288 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
2290 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
2291 reveal whether illegal block cipher padding was found or a MAC
2292 verification error occured. (Neither SSLerr() codes nor alerts
2293 are directly visible to potential attackers, but the information
2294 may leak via logfiles.)
2296 Similar changes are not required for the SSL 2.0 implementation
2297 because the number of padding bytes is sent in clear for SSL 2.0,
2298 and the extra bytes are just ignored. However ssl/s2_pkt.c
2299 failed to verify that the purported number of padding bytes is in
2303 *) Add OpenUNIX-8 support including shared libraries
2304 (Boyd Lynn Gerber <gerberb@zenez.com>).
2307 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
2308 'wristwatch attack' using huge encoding parameters (cf.
2309 James H. Manger's CRYPTO 2001 paper). Note that the
2310 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
2311 encoding parameters and hence was not vulnerable.
2314 *) BN_sqr() bug fix.
2315 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
2317 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
2318 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
2319 followed by modular reduction.
2320 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
2322 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
2323 equivalent based on BN_pseudo_rand() instead of BN_rand().
2326 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
2327 This function was broken, as the check for a new client hello message
2328 to handle SGC did not allow these large messages.
2329 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
2332 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
2335 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
2336 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
2339 *) Rework the configuration and shared library support for Tru64 Unix.
2340 The configuration part makes use of modern compiler features and
2341 still retains old compiler behavior for those that run older versions
2342 of the OS. The shared library support part includes a variant that
2343 uses the RPATH feature, and is available through the special
2344 configuration target "alpha-cc-rpath", which will never be selected
2346 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
2348 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
2349 with the same message size as in ssl3_get_certificate_request().
2350 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
2351 messages might inadvertently be reject as too long.
2352 [Petr Lampa <lampa@fee.vutbr.cz>]
2354 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
2357 *) Modified SSL library such that the verify_callback that has been set
2358 specificly for an SSL object with SSL_set_verify() is actually being
2359 used. Before the change, a verify_callback set with this function was
2360 ignored and the verify_callback() set in the SSL_CTX at the time of
2361 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
2362 to allow the necessary settings.
2365 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
2366 explicitly to NULL, as at least on Solaris 8 this seems not always to be
2367 done automatically (in contradiction to the requirements of the C
2368 standard). This made problems when used from OpenSSH.
2371 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
2372 dh->length and always used
2374 BN_rand_range(priv_key, dh->p).
2376 BN_rand_range() is not necessary for Diffie-Hellman, and this
2377 specific range makes Diffie-Hellman unnecessarily inefficient if
2378 dh->length (recommended exponent length) is much smaller than the
2379 length of dh->p. We could use BN_rand_range() if the order of
2380 the subgroup was stored in the DH structure, but we only have
2385 BN_rand(priv_key, l, ...)
2387 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
2393 RSA_eay_public_encrypt
2394 RSA_eay_private_decrypt
2395 RSA_eay_private_encrypt (signing)
2396 RSA_eay_public_decrypt (signature verification)
2398 (default implementations for RSA_public_encrypt,
2399 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
2400 always reject numbers >= n.
2403 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
2404 to synchronize access to 'locking_thread'. This is necessary on
2405 systems where access to 'locking_thread' (an 'unsigned long'
2406 variable) is not atomic.
2409 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
2410 *before* setting the 'crypto_lock_rand' flag. The previous code had
2411 a race condition if 0 is a valid thread ID.
2412 [Travis Vitek <vitek@roguewave.com>]
2414 *) Add support for shared libraries under Irix.
2415 [Albert Chin-A-Young <china@thewrittenword.com>]
2417 *) Add configuration option to build on Linux on both big-endian and
2419 [Ralf Baechle <ralf@uni-koblenz.de>]
2421 *) Add the possibility to create shared libraries on HP-UX.
2424 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
2426 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
2427 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
2428 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
2429 PRNG state recovery was possible based on the output of
2430 one PRNG request appropriately sized to gain knowledge on
2431 'md' followed by enough consecutive 1-byte PRNG requests
2432 to traverse all of 'state'.
2434 1. When updating 'md_local' (the current thread's copy of 'md')
2435 during PRNG output generation, hash all of the previous
2436 'md_local' value, not just the half used for PRNG output.
2438 2. Make the number of bytes from 'state' included into the hash
2439 independent from the number of PRNG bytes requested.
2441 The first measure alone would be sufficient to avoid
2442 Markku-Juhani's attack. (Actually it had never occurred
2443 to me that the half of 'md_local' used for chaining was the
2444 half from which PRNG output bytes were taken -- I had always
2445 assumed that the secret half would be used.) The second
2446 measure makes sure that additional data from 'state' is never
2447 mixed into 'md_local' in small portions; this heuristically
2448 further strengthens the PRNG.
2451 *) Fix crypto/bn/asm/mips3.s.
2454 *) When only the key is given to "enc", the IV is undefined. Print out
2455 an error message in this case.
2458 *) Handle special case when X509_NAME is empty in X509 printing routines.
2461 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
2462 positive and less than q.
2465 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
2466 used: it isn't thread safe and the add_lock_callback should handle
2468 [Paul Rose <Paul.Rose@bridge.com>]
2470 *) Verify that incoming data obeys the block size in
2471 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
2475 [Ulf Möller, Bodo Möller]
2477 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
2478 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
2479 when fixing the server behaviour for backwards-compatible 'client
2480 hello' messages. (Note that the attack is impractical against
2481 SSL 3.0 and TLS 1.0 anyway because length and version checking
2482 means that the probability of guessing a valid ciphertext is
2483 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
2486 Before 0.9.5, the countermeasure (hide the error by generating a
2487 random 'decryption result') did not work properly because
2488 ERR_clear_error() was missing, meaning that SSL_get_error() would
2489 detect the supposedly ignored error.
2491 Both problems are now fixed.
2494 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
2495 (previously it was 1024).
2498 *) Fix for compatibility mode trust settings: ignore trust settings
2499 unless some valid trust or reject settings are present.
2502 *) Fix for blowfish EVP: its a variable length cipher.
2505 *) Fix various bugs related to DSA S/MIME verification. Handle missing
2506 parameters in DSA public key structures and return an error in the
2507 DSA routines if parameters are absent.
2510 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
2511 in the current directory if neither $RANDFILE nor $HOME was set.
2512 RAND_file_name() in 0.9.6a returned NULL in this case. This has
2513 caused some confusion to Windows users who haven't defined $HOME.
2514 Thus RAND_file_name() is changed again: e_os.h can define a
2515 DEFAULT_HOME, which will be used if $HOME is not set.
2516 For Windows, we use "C:"; on other platforms, we still require
2517 environment variables.
2519 *) Move 'if (!initialized) RAND_poll()' into regions protected by
2520 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
2521 having multiple threads call RAND_poll() concurrently.
2524 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
2525 combination of a flag and a thread ID variable.
2526 Otherwise while one thread is in ssleay_rand_bytes (which sets the
2527 flag), *other* threads can enter ssleay_add_bytes without obeying
2528 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
2529 that they do not hold after the first thread unsets add_do_not_lock).
2532 *) Change bctest again: '-x' expressions are not available in all
2536 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
2538 *) Fix a couple of memory leaks in PKCS7_dataDecode()
2539 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
2541 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
2542 the default extension for executables, if any. Also, make the perl
2543 scripts that use symlink() to test if it really exists and use "cp"
2544 if it doesn't. All this made OpenSSL compilable and installable in
2548 *) Fix for asn1_GetSequence() for indefinite length constructed data.
2549 If SEQUENCE is length is indefinite just set c->slen to the total
2550 amount of data available.
2551 [Steve Henson, reported by shige@FreeBSD.org]
2552 [This change does not apply to 0.9.7.]
2554 *) Change bctest to avoid here-documents inside command substitution
2555 (workaround for FreeBSD /bin/sh bug).
2556 For compatibility with Ultrix, avoid shell functions (introduced
2557 in the bctest version that searches along $PATH).
2560 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
2561 with des_encrypt() defined on some operating systems, like Solaris
2565 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
2566 On the Importance of Eliminating Errors in Cryptographic
2567 Computations, J. Cryptology 14 (2001) 2, 101-119,
2568 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
2571 *) MIPS assembler BIGNUM division bug fix.
2574 *) Disabled incorrect Alpha assembler code.
2577 *) Fix PKCS#7 decode routines so they correctly update the length
2578 after reading an EOC for the EXPLICIT tag.
2580 [This change does not apply to 0.9.7.]
2582 *) Fix bug in PKCS#12 key generation routines. This was triggered
2583 if a 3DES key was generated with a 0 initial byte. Include
2584 PKCS12_BROKEN_KEYGEN compilation option to retain the old
2585 (but broken) behaviour.
2588 *) Enhance bctest to search for a working bc along $PATH and print
2590 [Tim Rice <tim@multitalents.net> via Richard Levitte]
2592 *) Fix memory leaks in err.c: free err_data string if necessary;
2593 don't write to the wrong index in ERR_set_error_data.
2596 *) Implement ssl23_peek (analogous to ssl23_read), which previously
2600 *) Replace rdtsc with _emit statements for VC++ version 5.
2601 [Jeremy Cooper <jeremy@baymoo.org>]
2603 *) Make it possible to reuse SSLv2 sessions.
2606 *) In copy_email() check for >= 0 as a return value for
2607 X509_NAME_get_index_by_NID() since 0 is a valid index.
2608 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
2610 *) Avoid coredump with unsupported or invalid public keys by checking if
2611 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
2612 PKCS7_verify() fails with non detached data.
2615 *) Don't use getenv in library functions when run as setuid/setgid.
2616 New function OPENSSL_issetugid().
2619 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
2620 due to incorrect handling of multi-threading:
2622 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
2624 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
2626 3. Count how many times MemCheck_off() has been called so that
2627 nested use can be treated correctly. This also avoids
2628 inband-signalling in the previous code (which relied on the
2629 assumption that thread ID 0 is impossible).
2632 *) Add "-rand" option also to s_client and s_server.
2635 *) Fix CPU detection on Irix 6.x.
2636 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
2637 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2639 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
2642 [This change does not apply to 0.9.7.]
2644 *) Use the cached encoding of an X509_NAME structure rather than
2645 copying it. This is apparently the reason for the libsafe "errors"
2646 but the code is actually correct.
2649 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
2650 Bleichenbacher's DSA attack.
2651 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
2652 to be set and top=0 forces the highest bit to be set; top=-1 is new
2653 and leaves the highest bit random.
2654 [Ulf Moeller, Bodo Moeller]
2656 *) In the NCONF_...-based implementations for CONF_... queries
2657 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
2658 a temporary CONF structure with the data component set to NULL
2659 (which gives segmentation faults in lh_retrieve).
2660 Instead, use NULL for the CONF pointer in CONF_get_string and
2661 CONF_get_number (which may use environment variables) and directly
2662 return NULL from CONF_get_section.
2665 *) Fix potential buffer overrun for EBCDIC.
2668 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
2669 keyUsage if basicConstraints absent for a CA.
2672 *) Make SMIME_write_PKCS7() write mail header values with a format that
2673 is more generally accepted (no spaces before the semicolon), since
2674 some programs can't parse those values properly otherwise. Also make
2675 sure BIO's that break lines after each write do not create invalid
2679 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
2680 macros previously used would not encode an empty SEQUENCE OF
2681 and break the signature.
2683 [This change does not apply to 0.9.7.]
2685 *) Zero the premaster secret after deriving the master secret in
2689 *) Add some EVP_add_digest_alias registrations (as found in
2690 OpenSSL_add_all_digests()) to SSL_library_init()
2691 aka OpenSSL_add_ssl_algorithms(). This provides improved
2692 compatibility with peers using X.509 certificates
2693 with unconventional AlgorithmIdentifier OIDs.
2696 *) Fix for Irix with NO_ASM.
2697 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2699 *) ./config script fixes.
2700 [Ulf Moeller, Richard Levitte]
2702 *) Fix 'openssl passwd -1'.
2705 *) Change PKCS12_key_gen_asc() so it can cope with non null
2706 terminated strings whose length is passed in the passlen
2707 parameter, for example from PEM callbacks. This was done
2708 by adding an extra length parameter to asc2uni().
2709 [Steve Henson, reported by <oddissey@samsung.co.kr>]
2711 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
2712 call failed, free the DSA structure.
2715 *) Fix to uni2asc() to cope with zero length Unicode strings.
2716 These are present in some PKCS#12 files.
2719 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
2720 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
2721 when writing a 32767 byte record.
2722 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
2724 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
2725 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
2727 (RSA objects have a reference count access to which is protected
2728 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
2729 so they are meant to be shared between threads.)
2730 [Bodo Moeller, Geoff Thorpe; original patch submitted by
2731 "Reddie, Steven" <Steven.Reddie@ca.com>]
2733 *) Fix a deadlock in CRYPTO_mem_leaks().
2736 *) Use better test patterns in bntest.
2739 *) rand_win.c fix for Borland C.
2742 *) BN_rshift bugfix for n == 0.
2745 *) Add a 'bctest' script that checks for some known 'bc' bugs
2746 so that 'make test' does not abort just because 'bc' is broken.
2749 *) Store verify_result within SSL_SESSION also for client side to
2750 avoid potential security hole. (Re-used sessions on the client side
2751 always resulted in verify_result==X509_V_OK, not using the original
2752 result of the server certificate verification.)
2755 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
2756 SSL3_RT_APPLICATION_DATA, return 0.
2757 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
2761 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
2762 releases, have been re-implemented by renaming the previous
2763 implementations of ssl2_read and ssl3_read to ssl2_read_internal
2764 and ssl3_read_internal, respectively, and adding 'peek' parameters
2765 to them. The new ssl[23]_{read,peek} functions are calls to
2766 ssl[23]_read_internal with the 'peek' flag set appropriately.
2767 A 'peek' parameter has also been added to ssl3_read_bytes, which
2768 does the actual work for ssl3_read_internal.
2771 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
2772 the method-specific "init()" handler. Also clean up ex_data after
2773 calling the method-specific "finish()" handler. Previously, this was
2774 happening the other way round.
2777 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
2778 The previous value, 12, was not always sufficient for BN_mod_exp().
2781 *) Make sure that shared libraries get the internal name engine with
2782 the full version number and not just 0. This should mark the
2783 shared libraries as not backward compatible. Of course, this should
2784 be changed again when we can guarantee backward binary compatibility.
2787 *) Fix typo in get_cert_by_subject() in by_dir.c
2788 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
2790 *) Rework the system to generate shared libraries:
2792 - Make note of the expected extension for the shared libraries and
2793 if there is a need for symbolic links from for example libcrypto.so.0
2794 to libcrypto.so.0.9.7. There is extended info in Configure for
2797 - Make as few rebuilds of the shared libraries as possible.
2799 - Still avoid linking the OpenSSL programs with the shared libraries.
2801 - When installing, install the shared libraries separately from the
2805 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
2807 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
2808 and not in SSL_clear because the latter is also used by the
2809 accept/connect functions; previously, the settings made by
2810 SSL_set_read_ahead would be lost during the handshake.
2811 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
2813 *) Correct util/mkdef.pl to be selective about disabled algorithms.
2814 Previously, it would create entries for disableed algorithms no
2818 *) Added several new manual pages for SSL_* function.
2821 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
2823 *) In ssl23_get_client_hello, generate an error message when faced
2824 with an initial SSL 3.0/TLS record that is too small to contain the
2825 first two bytes of the ClientHello message, i.e. client_version.
2826 (Note that this is a pathologic case that probably has never happened
2827 in real life.) The previous approach was to use the version number
2828 from the record header as a substitute; but our protocol choice
2829 should not depend on that one because it is not authenticated
2830 by the Finished messages.
2833 *) More robust randomness gathering functions for Windows.
2834 [Jeffrey Altman <jaltman@columbia.edu>]
2836 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
2837 not set then we don't setup the error code for issuer check errors
2838 to avoid possibly overwriting other errors which the callback does
2839 handle. If an application does set the flag then we assume it knows
2840 what it is doing and can handle the new informational codes
2844 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
2845 a general "ANY" type, as such it should be able to decode anything
2846 including tagged types. However it didn't check the class so it would
2847 wrongly interpret tagged types in the same way as their universal
2848 counterpart and unknown types were just rejected. Changed so that the
2849 tagged and unknown types are handled in the same way as a SEQUENCE:
2850 that is the encoding is stored intact. There is also a new type
2851 "V_ASN1_OTHER" which is used when the class is not universal, in this
2852 case we have no idea what the actual type is so we just lump them all
2856 *) On VMS, stdout may very well lead to a file that is written to
2857 in a record-oriented fashion. That means that every write() will
2858 write a separate record, which will be read separately by the
2859 programs trying to read from it. This can be very confusing.
2861 The solution is to put a BIO filter in the way that will buffer
2862 text until a linefeed is reached, and then write everything a
2863 line at a time, so every record written will be an actual line,
2864 not chunks of lines and not (usually doesn't happen, but I've
2865 seen it once) several lines in one record. BIO_f_linebuffer() is
2868 Currently, it's a VMS-only method, because that's where it has
2869 been tested well enough.
2872 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
2873 it can return incorrect results.
2874 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
2875 but it was in 0.9.6-beta[12].)
2878 *) Disable the check for content being present when verifying detached
2879 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
2880 include zero length content when signing messages.
2883 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
2884 BIO_ctrl (for BIO pairs).
2887 *) Add DSO method for VMS.
2890 *) Bug fix: Montgomery multiplication could produce results with the
2894 *) Add RPM specification openssl.spec and modify it to build three
2895 packages. The default package contains applications, application
2896 documentation and run-time libraries. The devel package contains
2897 include files, static libraries and function documentation. The
2898 doc package contains the contents of the doc directory. The original
2899 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
2902 *) Add a large number of documentation files for many SSL routines.
2903 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
2905 *) Add a configuration entry for Sony News 4.
2906 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
2908 *) Don't set the two most significant bits to one when generating a
2909 random number < q in the DSA library.
2912 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
2913 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
2914 the underlying transport is blocking) if a handshake took place.
2915 (The default behaviour is needed by applications such as s_client
2916 and s_server that use select() to determine when to use SSL_read;
2917 but for applications that know in advance when to expect data, it
2918 just makes things more complicated.)
2921 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
2925 *) Add a few more EBCDIC conditionals that make `req' and `x509'
2926 work better on such systems.
2927 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
2929 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
2930 Update PKCS12_parse() so it copies the friendlyName and the
2931 keyid to the certificates aux info.
2934 *) Fix bug in PKCS7_verify() which caused an infinite loop
2935 if there was more than one signature.
2936 [Sven Uszpelkat <su@celocom.de>]
2938 *) Major change in util/mkdef.pl to include extra information
2939 about each symbol, as well as presentig variables as well
2940 as functions. This change means that there's n more need
2941 to rebuild the .num files when some algorithms are excluded.
2944 *) Allow the verify time to be set by an application,
2945 rather than always using the current time.
2948 *) Phase 2 verify code reorganisation. The certificate
2949 verify code now looks up an issuer certificate by a
2950 number of criteria: subject name, authority key id
2951 and key usage. It also verifies self signed certificates
2952 by the same criteria. The main comparison function is
2953 X509_check_issued() which performs these checks.
2955 Lot of changes were necessary in order to support this
2956 without completely rewriting the lookup code.
2958 Authority and subject key identifier are now cached.
2960 The LHASH 'certs' is X509_STORE has now been replaced
2961 by a STACK_OF(X509_OBJECT). This is mainly because an
2962 LHASH can't store or retrieve multiple objects with
2963 the same hash value.
2965 As a result various functions (which were all internal
2966 use only) have changed to handle the new X509_STORE
2967 structure. This will break anything that messed round
2968 with X509_STORE internally.
2970 The functions X509_STORE_add_cert() now checks for an
2971 exact match, rather than just subject name.
2973 The X509_STORE API doesn't directly support the retrieval
2974 of multiple certificates matching a given criteria, however
2975 this can be worked round by performing a lookup first
2976 (which will fill the cache with candidate certificates)
2977 and then examining the cache for matches. This is probably
2978 the best we can do without throwing out X509_LOOKUP
2979 entirely (maybe later...).
2981 The X509_VERIFY_CTX structure has been enhanced considerably.
2983 All certificate lookup operations now go via a get_issuer()
2984 callback. Although this currently uses an X509_STORE it
2985 can be replaced by custom lookups. This is a simple way
2986 to bypass the X509_STORE hackery necessary to make this
2987 work and makes it possible to use more efficient techniques
2988 in future. A very simple version which uses a simple
2989 STACK for its trusted certificate store is also provided
2990 using X509_STORE_CTX_trusted_stack().
2992 The verify_cb() and verify() callbacks now have equivalents
2993 in the X509_STORE_CTX structure.
2995 X509_STORE_CTX also has a 'flags' field which can be used
2996 to customise the verify behaviour.
2999 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3000 excludes S/MIME capabilities.
3003 *) When a certificate request is read in keep a copy of the
3004 original encoding of the signed data and use it when outputing
3005 again. Signatures then use the original encoding rather than
3006 a decoded, encoded version which may cause problems if the
3007 request is improperly encoded.
3010 *) For consistency with other BIO_puts implementations, call
3011 buffer_write(b, ...) directly in buffer_puts instead of calling
3014 In BIO_puts, increment b->num_write as in BIO_write.
3015 [Peter.Sylvester@EdelWeb.fr]
3017 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3018 BN_zero, we may not return a BIGNUM with an array consisting of
3022 *) Avoid calling abort() from within the library when problems are
3023 detected, except if preprocessor symbols have been defined
3024 (such as REF_CHECK, BN_DEBUG etc.).
3027 *) New openssl application 'rsautl'. This utility can be
3028 used for low level RSA operations. DER public key
3029 BIO/fp routines also added.
3032 *) New Configure entry and patches for compiling on QNX 4.
3033 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3035 *) A demo state-machine implementation was sponsored by
3036 Nuron (http://www.nuron.com/) and is now available in
3037 demos/state_machine.
3040 *) New options added to the 'dgst' utility for signature
3041 generation and verification.
3044 *) Unrecognized PKCS#7 content types are now handled via a
3045 catch all ASN1_TYPE structure. This allows unsupported
3046 types to be stored as a "blob" and an application can
3047 encode and decode it manually.
3050 *) Fix various signed/unsigned issues to make a_strex.c
3052 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3054 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3055 length if passed a buffer. ASN1_INTEGER_to_BN failed
3056 if passed a NULL BN and its argument was negative.
3057 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3059 *) Modification to PKCS#7 encoding routines to output definite
3060 length encoding. Since currently the whole structures are in
3061 memory there's not real point in using indefinite length
3062 constructed encoding. However if OpenSSL is compiled with
3063 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3066 *) Added BIO_vprintf() and BIO_vsnprintf().
3069 *) Added more prefixes to parse for in the the strings written
3070 through a logging bio, to cover all the levels that are available
3071 through syslog. The prefixes are now:
3073 PANIC, EMERG, EMR => LOG_EMERG
3074 ALERT, ALR => LOG_ALERT
3075 CRIT, CRI => LOG_CRIT
3076 ERROR, ERR => LOG_ERR
3077 WARNING, WARN, WAR => LOG_WARNING
3078 NOTICE, NOTE, NOT => LOG_NOTICE
3079 INFO, INF => LOG_INFO
3080 DEBUG, DBG => LOG_DEBUG
3082 and as before, if none of those prefixes are present at the
3083 beginning of the string, LOG_ERR is chosen.
3085 On Win32, the LOG_* levels are mapped according to this:
3087 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3088 LOG_WARNING => EVENTLOG_WARNING_TYPE
3089 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3093 *) Made it possible to reconfigure with just the configuration
3094 argument "reconf" or "reconfigure". The command line arguments
3095 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3096 and are retrieved from there when reconfiguring.
3100 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3102 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3105 *) The obj_dat.pl script was messing up the sorting of object
3106 names. The reason was that it compared the quoted version
3107 of strings as a result "OCSP" > "OCSP Signing" because
3108 " > SPACE. Changed script to store unquoted versions of
3109 names and add quotes on output. It was also omitting some
3110 names from the lookup table if they were given a default
3111 value (that is if SN is missing it is given the same
3112 value as LN and vice versa), these are now added on the
3113 grounds that if an object has a name we should be able to
3114 look it up. Finally added warning output when duplicate
3115 short or long names are found.
3118 *) Changes needed for Tandem NSK.
3119 [Scott Uroff <scott@xypro.com>]
3121 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3122 RSA_padding_check_SSLv23(), special padding was never detected
3123 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3124 version rollback attacks was not effective.
3126 In s23_clnt.c, don't use special rollback-attack detection padding
3127 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3128 client; similarly, in s23_srvr.c, don't do the rollback check if
3129 SSL 2.0 is the only protocol enabled in the server.
3132 *) Make it possible to get hexdumps of unprintable data with 'openssl
3133 asn1parse'. By implication, the functions ASN1_parse_dump() and
3134 BIO_dump_indent() are added.
3137 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
3138 these print out strings and name structures based on various
3139 flags including RFC2253 support and proper handling of
3140 multibyte characters. Added options to the 'x509' utility
3141 to allow the various flags to be set.
3144 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
3145 Also change the functions X509_cmp_current_time() and
3146 X509_gmtime_adj() work with an ASN1_TIME structure,
3147 this will enable certificates using GeneralizedTime in validity
3148 dates to be checked.
3151 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
3152 negative public key encodings) on by default,
3153 NO_NEG_PUBKEY_BUG can be set to disable it.
3156 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
3157 content octets. An i2c_ASN1_OBJECT is unnecessary because
3158 the encoding can be trivially obtained from the structure.
3161 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
3162 not read locks (CRYPTO_r_[un]lock).
3165 *) A first attempt at creating official support for shared
3166 libraries through configuration. I've kept it so the
3167 default is static libraries only, and the OpenSSL programs
3168 are always statically linked for now, but there are
3169 preparations for dynamic linking in place.
3170 This has been tested on Linux and Tru64.
3173 *) Randomness polling function for Win9x, as described in:
3174 Peter Gutmann, Software Generation of Practically Strong
3178 *) Fix so PRNG is seeded in req if using an already existing
3182 *) New options to smime application. -inform and -outform
3183 allow alternative formats for the S/MIME message including
3184 PEM and DER. The -content option allows the content to be
3185 specified separately. This should allow things like Netscape
3186 form signing output easier to verify.
3189 *) Fix the ASN1 encoding of tags using the 'long form'.
3192 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
3193 STRING types. These convert content octets to and from the
3194 underlying type. The actual tag and length octets are
3195 already assumed to have been read in and checked. These
3196 are needed because all other string types have virtually
3197 identical handling apart from the tag. By having versions
3198 of the ASN1 functions that just operate on content octets
3199 IMPLICIT tagging can be handled properly. It also allows
3200 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
3201 and ASN1_INTEGER are identical apart from the tag.
3204 *) Change the handling of OID objects as follows:
3206 - New object identifiers are inserted in objects.txt, following
3207 the syntax given in objects.README.
3208 - objects.pl is used to process obj_mac.num and create a new
3210 - obj_dat.pl is used to create a new obj_dat.h, using the data in
3213 This is currently kind of a hack, and the perl code in objects.pl
3214 isn't very elegant, but it works as I intended. The simplest way
3215 to check that it worked correctly is to look in obj_dat.h and
3216 check the array nid_objs and make sure the objects haven't moved
3217 around (this is important!). Additions are OK, as well as
3218 consistent name changes.
3221 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
3224 *) Addition of the command line parameter '-rand file' to 'openssl req'.
3225 The given file adds to whatever has already been seeded into the
3226 random pool through the RANDFILE configuration file option or
3227 environment variable, or the default random state file.
3230 *) mkstack.pl now sorts each macro group into lexical order.
3231 Previously the output order depended on the order the files
3232 appeared in the directory, resulting in needless rewriting
3236 *) Patches to make OpenSSL compile under Win32 again. Mostly
3237 work arounds for the VC++ problem that it treats func() as
3238 func(void). Also stripped out the parts of mkdef.pl that
3239 added extra typesafe functions: these no longer exist.
3242 *) Reorganisation of the stack code. The macros are now all
3243 collected in safestack.h . Each macro is defined in terms of
3244 a "stack macro" of the form SKM_<name>(type, a, b). The
3245 DEBUG_SAFESTACK is now handled in terms of function casts,
3246 this has the advantage of retaining type safety without the
3247 use of additional functions. If DEBUG_SAFESTACK is not defined
3248 then the non typesafe macros are used instead. Also modified the
3249 mkstack.pl script to handle the new form. Needs testing to see
3250 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
3251 the default if no major problems. Similar behaviour for ASN1_SET_OF
3252 and PKCS12_STACK_OF.
3255 *) When some versions of IIS use the 'NET' form of private key the
3256 key derivation algorithm is different. Normally MD5(password) is
3257 used as a 128 bit RC4 key. In the modified case
3258 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
3259 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
3260 as the old Netscape_RSA functions except they have an additional
3261 'sgckey' parameter which uses the modified algorithm. Also added
3262 an -sgckey command line option to the rsa utility. Thanks to
3263 Adrian Peck <bertie@ncipher.com> for posting details of the modified
3264 algorithm to openssl-dev.
3267 *) The evp_local.h macros were using 'c.##kname' which resulted in
3268 invalid expansion on some systems (SCO 5.0.5 for example).
3269 Corrected to 'c.kname'.
3270 [Phillip Porch <root@theporch.com>]
3272 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
3273 a STACK of email addresses from a certificate or request, these look
3274 in the subject name and the subject alternative name extensions and
3275 omit any duplicate addresses.
3278 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
3279 This makes DSA verification about 2 % faster.
3282 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
3283 (meaning that now 2^5 values will be precomputed, which is only 4 KB
3284 plus overhead for 1024 bit moduli).
3285 This makes exponentiations about 0.5 % faster for 1024 bit
3286 exponents (as measured by "openssl speed rsa2048").
3289 *) Rename memory handling macros to avoid conflicts with other
3291 Malloc => OPENSSL_malloc
3292 Malloc_locked => OPENSSL_malloc_locked
3293 Realloc => OPENSSL_realloc
3294 Free => OPENSSL_free
3297 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
3298 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
3301 *) CygWin32 support.
3302 [John Jarvie <jjarvie@newsguy.com>]
3304 *) The type-safe stack code has been rejigged. It is now only compiled
3305 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
3306 by default all type-specific stack functions are "#define"d back to
3307 standard stack functions. This results in more streamlined output
3308 but retains the type-safety checking possibilities of the original
3312 *) The STACK code has been cleaned up, and certain type declarations
3313 that didn't make a lot of sense have been brought in line. This has
3314 also involved a cleanup of sorts in safestack.h to more correctly
3315 map type-safe stack functions onto their plain stack counterparts.
3316 This work has also resulted in a variety of "const"ifications of
3317 lots of the code, especially "_cmp" operations which should normally
3318 be prototyped with "const" parameters anyway.
3321 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
3322 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
3323 (The PRNG state consists of two parts, the large pool 'state' and 'md',
3324 where all of 'md' is used each time the PRNG is used, but 'state'
3325 is used only indexed by a cyclic counter. As entropy may not be
3326 well distributed from the beginning, 'md' is important as a
3327 chaining variable. However, the output function chains only half
3328 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
3329 all of 'md', and seeding with STATE_SIZE dummy bytes will result
3330 in all of 'state' being rewritten, with the new values depending
3331 on virtually all of 'md'. This overcomes the 80 bit limitation.)
3334 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
3335 the handshake is continued after ssl_verify_cert_chain();
3336 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
3337 can lead to 'unexplainable' connection aborts later.
3338 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
3340 *) Major EVP API cipher revision.
3341 Add hooks for extra EVP features. This allows various cipher
3342 parameters to be set in the EVP interface. Support added for variable
3343 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
3344 setting of RC2 and RC5 parameters.
3346 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
3349 Remove lots of duplicated code from the EVP library. For example *every*
3350 cipher init() function handles the 'iv' in the same way according to the
3351 cipher mode. They also all do nothing if the 'key' parameter is NULL and
3352 for CFB and OFB modes they zero ctx->num.
3354 New functionality allows removal of S/MIME code RC2 hack.
3356 Most of the routines have the same form and so can be declared in terms
3359 By shifting this to the top level EVP_CipherInit() it can be removed from
3360 all individual ciphers. If the cipher wants to handle IVs or keys
3361 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
3364 Change lots of functions like EVP_EncryptUpdate() to now return a
3365 value: although software versions of the algorithms cannot fail
3366 any installed hardware versions can.
3369 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
3370 this option is set, tolerate broken clients that send the negotiated
3371 protocol version number instead of the requested protocol version
3375 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
3376 i.e. non-zero for export ciphersuites, zero otherwise.
3377 Previous versions had this flag inverted, inconsistent with
3378 rsa_tmp_cb (..._TMP_RSA_CB).
3379 [Bodo Moeller; problem reported by Amit Chopra]
3381 *) Add missing DSA library text string. Work around for some IIS
3382 key files with invalid SEQUENCE encoding.
3385 *) Add a document (doc/standards.txt) that list all kinds of standards
3386 and so on that are implemented in OpenSSL.
3389 *) Enhance c_rehash script. Old version would mishandle certificates
3390 with the same subject name hash and wouldn't handle CRLs at all.
3391 Added -fingerprint option to crl utility, to support new c_rehash
3395 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
3398 *) Fix for SSL server purpose checking. Server checking was
3399 rejecting certificates which had extended key usage present
3400 but no ssl client purpose.
3401 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
3403 *) Make PKCS#12 code work with no password. The PKCS#12 spec
3404 is a little unclear about how a blank password is handled.
3405 Since the password in encoded as a BMPString with terminating
3406 double NULL a zero length password would end up as just the
3407 double NULL. However no password at all is different and is
3408 handled differently in the PKCS#12 key generation code. NS
3409 treats a blank password as zero length. MSIE treats it as no
3410 password on export: but it will try both on import. We now do
3411 the same: PKCS12_parse() tries zero length and no password if
3412 the password is set to "" or NULL (NULL is now a valid password:
3413 it wasn't before) as does the pkcs12 application.
3416 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
3417 perror when PEM_read_bio_X509_REQ fails, the error message must
3418 be obtained from the error queue.
3421 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
3422 it in ERR_remove_state if appropriate, and change ERR_get_state
3423 accordingly to avoid race conditions (this is necessary because
3424 thread_hash is no longer constant once set).
3427 *) Bugfix for linux-elf makefile.one.
3430 *) RSA_get_default_method() will now cause a default
3431 RSA_METHOD to be chosen if one doesn't exist already.
3432 Previously this was only set during a call to RSA_new()
3433 or RSA_new_method(NULL) meaning it was possible for
3434 RSA_get_default_method() to return NULL.
3437 *) Added native name translation to the existing DSO code
3438 that will convert (if the flag to do so is set) filenames
3439 that are sufficiently small and have no path information
3440 into a canonical native form. Eg. "blah" converted to
3441 "libblah.so" or "blah.dll" etc.
3444 *) New function ERR_error_string_n(e, buf, len) which is like
3445 ERR_error_string(e, buf), but writes at most 'len' bytes
3446 including the 0 terminator. For ERR_error_string_n, 'buf'
3448 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
3450 *) CONF library reworked to become more general. A new CONF
3451 configuration file reader "class" is implemented as well as a
3452 new functions (NCONF_*, for "New CONF") to handle it. The now
3453 old CONF_* functions are still there, but are reimplemented to
3454 work in terms of the new functions. Also, a set of functions
3455 to handle the internal storage of the configuration data is
3456 provided to make it easier to write new configuration file
3457 reader "classes" (I can definitely see something reading a
3458 configuration file in XML format, for example), called _CONF_*,
3459 or "the configuration storage API"...
3461 The new configuration file reading functions are:
3463 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
3464 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
3466 NCONF_default, NCONF_WIN32
3468 NCONF_dump_fp, NCONF_dump_bio
3470 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
3471 NCONF_new creates a new CONF object. This works in the same way
3472 as other interfaces in OpenSSL, like the BIO interface.
3473 NCONF_dump_* dump the internal storage of the configuration file,
3474 which is useful for debugging. All other functions take the same
3475 arguments as the old CONF_* functions wth the exception of the
3476 first that must be a `CONF *' instead of a `LHASH *'.
3478 To make it easer to use the new classes with the old CONF_* functions,
3479 the function CONF_set_default_method is provided.
3482 *) Add '-tls1' option to 'openssl ciphers', which was already
3483 mentioned in the documentation but had not been implemented.
3484 (This option is not yet really useful because even the additional
3485 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
3488 *) Initial DSO code added into libcrypto for letting OpenSSL (and
3489 OpenSSL-based applications) load shared libraries and bind to
3490 them in a portable way.
3491 [Geoff Thorpe, with contributions from Richard Levitte]
3493 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
3495 *) Make sure _lrotl and _lrotr are only used with MSVC.
3497 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
3498 (the default implementation of RAND_status).
3500 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
3501 to '-clrext' (= clear extensions), as intended and documented.
3502 [Bodo Moeller; inconsistency pointed out by Michael Attili
3505 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
3506 was larger than the MD block size.
3507 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
3509 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
3510 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
3511 using the passed key: if the passed key was a private key the result
3512 of X509_print(), for example, would be to print out all the private key
3516 *) des_quad_cksum() byte order bug fix.
3517 [Ulf Möller, using the problem description in krb4-0.9.7, where
3518 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
3520 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
3522 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
3524 *) For easily testing in shell scripts whether some command
3525 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
3526 returns with exit code 0 iff no command of the given name is available.
3527 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
3528 the output goes to stdout and nothing is printed to stderr.
3529 Additional arguments are always ignored.
3531 Since for each cipher there is a command of the same name,
3532 the 'no-cipher' compilation switches can be tested this way.
3534 ('openssl no-XXX' is not able to detect pseudo-commands such
3535 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
3538 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
3541 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
3542 is set; it will be thrown away anyway because each handshake creates
3544 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
3545 to parameters -- in previous versions (since OpenSSL 0.9.3) the
3546 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
3547 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
3550 *) New s_client option -ign_eof: EOF at stdin is ignored, and
3551 'Q' and 'R' lose their special meanings (quit/renegotiate).
3552 This is part of what -quiet does; unlike -quiet, -ign_eof
3553 does not suppress any output.
3556 *) Add compatibility options to the purpose and trust code. The
3557 purpose X509_PURPOSE_ANY is "any purpose" which automatically
3558 accepts a certificate or CA, this was the previous behaviour,
3559 with all the associated security issues.
3561 X509_TRUST_COMPAT is the old trust behaviour: only and
3562 automatically trust self signed roots in certificate store. A
3563 new trust setting X509_TRUST_DEFAULT is used to specify that
3564 a purpose has no associated trust setting and it should instead
3565 use the value in the default purpose.
3568 *) Fix the PKCS#8 DSA private key code so it decodes keys again
3569 and fix a memory leak.
3572 *) In util/mkerr.pl (which implements 'make errors'), preserve
3573 reason strings from the previous version of the .c file, as
3574 the default to have only downcase letters (and digits) in
3575 automatically generated reasons codes is not always appropriate.
3578 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
3579 using strerror. Previously, ERR_reason_error_string() returned
3580 library names as reason strings for SYSerr; but SYSerr is a special
3581 case where small numbers are errno values, not library numbers.
3584 *) Add '-dsaparam' option to 'openssl dhparam' application. This
3585 converts DSA parameters into DH parameters. (When creating parameters,
3586 DSA_generate_parameters is used.)
3589 *) Include 'length' (recommended exponent length) in C code generated
3590 by 'openssl dhparam -C'.
3593 *) The second argument to set_label in perlasm was already being used
3594 so couldn't be used as a "file scope" flag. Moved to third argument
3598 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
3599 instead of RAND_bytes for encryption IVs and salts.
3602 *) Include RAND_status() into RAND_METHOD instead of implementing
3603 it only for md_rand.c Otherwise replacing the PRNG by calling
3604 RAND_set_rand_method would be impossible.
3607 *) Don't let DSA_generate_key() enter an infinite loop if the random
3608 number generation fails.
3611 *) New 'rand' application for creating pseudo-random output.
3614 *) Added configuration support for Linux/IA64
3615 [Rolf Haberrecker <rolf@suse.de>]
3617 *) Assembler module support for Mingw32.
3620 *) Shared library support for HPUX (in shlib/).
3621 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
3623 *) Shared library support for Solaris gcc.
3624 [Lutz Behnke <behnke@trustcenter.de>]
3626 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
3628 *) PKCS7_encrypt() was adding text MIME headers twice because they
3629 were added manually and by SMIME_crlf_copy().
3632 *) In bntest.c don't call BN_rand with zero bits argument.
3633 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
3635 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
3636 case was implemented. This caused BN_div_recp() to fail occasionally.
3639 *) Add an optional second argument to the set_label() in the perl
3640 assembly language builder. If this argument exists and is set
3641 to 1 it signals that the assembler should use a symbol whose
3642 scope is the entire file, not just the current function. This
3643 is needed with MASM which uses the format label:: for this scope.
3644 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
3646 *) Change the ASN1 types so they are typedefs by default. Before
3647 almost all types were #define'd to ASN1_STRING which was causing
3648 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
3652 *) Change names of new functions to the new get1/get0 naming
3653 convention: After 'get1', the caller owns a reference count
3654 and has to call ..._free; 'get0' returns a pointer to some
3655 data structure without incrementing reference counters.
3656 (Some of the existing 'get' functions increment a reference
3657 counter, some don't.)
3658 Similarly, 'set1' and 'add1' functions increase reference
3659 counters or duplicate objects.
3662 *) Allow for the possibility of temp RSA key generation failure:
3663 the code used to assume it always worked and crashed on failure.
3666 *) Fix potential buffer overrun problem in BIO_printf().
3667 [Ulf Möller, using public domain code by Patrick Powell; problem
3668 pointed out by David Sacerdote <das33@cornell.edu>]
3670 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
3671 RAND_egd() and RAND_status(). In the command line application,
3672 the EGD socket can be specified like a seed file using RANDFILE
3676 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
3677 Some CAs (e.g. Verisign) distribute certificates in this form.
3680 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
3681 list to exclude them. This means that no special compilation option
3682 is needed to use anonymous DH: it just needs to be included in the
3686 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
3687 EVP_MD_type. The old functionality is available in a new macro called
3688 EVP_MD_md(). Change code that uses it and update docs.
3691 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
3692 where the 'void *' argument is replaced by a function pointer argument.
3693 Previously 'void *' was abused to point to functions, which works on
3694 many platforms, but is not correct. As these functions are usually
3695 called by macros defined in OpenSSL header files, most source code
3696 should work without changes.
3699 *) <openssl/opensslconf.h> (which is created by Configure) now contains
3700 sections with information on -D... compiler switches used for
3701 compiling the library so that applications can see them. To enable
3702 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
3703 must be defined. E.g.,
3704 #define OPENSSL_ALGORITHM_DEFINES
3705 #include <openssl/opensslconf.h>
3706 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
3707 [Richard Levitte, Ulf and Bodo Möller]
3709 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
3713 *) Change the 'other' type in certificate aux info to a STACK_OF
3714 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
3715 the required ASN1 format: arbitrary types determined by an OID.
3718 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
3719 argument to 'req'. This is not because the function is newer or
3720 better than others it just uses the work 'NEW' in the certificate
3721 request header lines. Some software needs this.
3724 *) Reorganise password command line arguments: now passwords can be
3725 obtained from various sources. Delete the PEM_cb function and make
3726 it the default behaviour: i.e. if the callback is NULL and the
3727 usrdata argument is not NULL interpret it as a null terminated pass
3728 phrase. If usrdata and the callback are NULL then the pass phrase
3729 is prompted for as usual.
3732 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
3733 the support is automatically enabled. The resulting binaries will
3734 autodetect the card and use it if present.
3735 [Ben Laurie and Compaq Inc.]
3737 *) Work around for Netscape hang bug. This sends certificate request
3738 and server done in one record. Since this is perfectly legal in the
3739 SSL/TLS protocol it isn't a "bug" option and is on by default. See
3740 the bugs/SSLv3 entry for more info.
3743 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
3746 *) Add -rand argument to smime and pkcs12 applications and read/write
3750 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
3753 *) Add command line password options to the remaining applications.
3756 *) Bug fix for BN_div_recp() for numerators with an even number of
3760 *) More tests in bntest.c, and changed test_bn output.
3763 *) ./config recognizes MacOS X now.
3766 *) Bug fix for BN_div() when the first words of num and divsor are
3767 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
3770 *) Add support for various broken PKCS#8 formats, and command line
3771 options to produce them.
3774 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
3775 get temporary BIGNUMs from a BN_CTX.
3778 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
3782 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
3783 include a #define from the old name to the new. The original intent
3784 was that statically linked binaries could for example just call
3785 SSLeay_add_all_ciphers() to just add ciphers to the table and not
3786 link with digests. This never worked becayse SSLeay_add_all_digests()
3787 and SSLeay_add_all_ciphers() were in the same source file so calling
3788 one would link with the other. They are now in separate source files.
3791 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
3794 *) Use a less unusual form of the Miller-Rabin primality test (it used
3795 a binary algorithm for exponentiation integrated into the Miller-Rabin
3796 loop, our standard modexp algorithms are faster).
3799 *) Support for the EBCDIC character set completed.
3800 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
3802 *) Source code cleanups: use const where appropriate, eliminate casts,
3803 use void * instead of char * in lhash.
3806 *) Bugfix: ssl3_send_server_key_exchange was not restartable
3807 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
3808 this the server could overwrite ephemeral keys that the client
3812 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
3813 using 50 iterations of the Rabin-Miller test.
3815 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
3816 iterations of the Rabin-Miller test as required by the appendix
3817 to FIPS PUB 186[-1]) instead of DSA_is_prime.
3818 As BN_is_prime_fasttest includes trial division, DSA parameter
3819 generation becomes much faster.
3821 This implies a change for the callback functions in DSA_is_prime
3822 and DSA_generate_parameters: The callback function is called once
3823 for each positive witness in the Rabin-Miller test, not just
3824 occasionally in the inner loop; and the parameters to the
3825 callback function now provide an iteration count for the outer
3826 loop rather than for the current invocation of the inner loop.
3827 DSA_generate_parameters additionally can call the callback
3828 function with an 'iteration count' of -1, meaning that a
3829 candidate has passed the trial division test (when q is generated
3830 from an application-provided seed, trial division is skipped).
3833 *) New function BN_is_prime_fasttest that optionally does trial
3834 division before starting the Rabin-Miller test and has
3835 an additional BN_CTX * argument (whereas BN_is_prime always
3836 has to allocate at least one BN_CTX).
3837 'callback(1, -1, cb_arg)' is called when a number has passed the
3838 trial division stage.
3841 *) Fix for bug in CRL encoding. The validity dates weren't being handled
3845 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
3848 *) New function BN_pseudo_rand().
3851 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
3852 bignum version of BN_from_montgomery() with the working code from
3853 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
3857 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
3858 made it impossible to use the same SSL_SESSION data structure in
3859 SSL2 clients in multiple threads.
3862 *) The return value of RAND_load_file() no longer counts bytes obtained
3863 by stat(). RAND_load_file(..., -1) is new and uses the complete file
3864 to seed the PRNG (previously an explicit byte count was required).
3865 [Ulf Möller, Bodo Möller]
3867 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
3868 used (char *) instead of (void *) and had casts all over the place.
3871 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
3874 *) Retain source code compatibility for BN_prime_checks macro:
3875 BN_is_prime(..., BN_prime_checks, ...) now uses
3876 BN_prime_checks_for_size to determine the appropriate number of
3877 Rabin-Miller iterations.
3880 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
3881 DH_CHECK_P_NOT_SAFE_PRIME.
3882 (Check if this is true? OpenPGP calls them "strong".)
3885 *) Merge the functionality of "dh" and "gendh" programs into a new program
3886 "dhparam". The old programs are retained for now but will handle DH keys
3887 (instead of parameters) in future.
3890 *) Make the ciphers, s_server and s_client programs check the return values
3891 when a new cipher list is set.
3894 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
3895 ciphers. Before when the 56bit ciphers were enabled the sorting was
3898 The syntax for the cipher sorting has been extended to support sorting by
3899 cipher-strength (using the strength_bits hard coded in the tables).
3900 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
3902 Fix a bug in the cipher-command parser: when supplying a cipher command
3903 string with an "undefined" symbol (neither command nor alphanumeric
3904 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
3905 an error is flagged.
3907 Due to the strength-sorting extension, the code of the
3908 ssl_create_cipher_list() function was completely rearranged. I hope that
3909 the readability was also increased :-)
3910 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3912 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
3913 for the first serial number and places 2 in the serial number file. This
3914 avoids problems when the root CA is created with serial number zero and
3915 the first user certificate has the same issuer name and serial number
3919 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
3920 the new code. Add documentation for this stuff.
3923 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
3924 X509_*() to X509at_*() on the grounds that they don't handle X509
3925 structures and behave in an analagous way to the X509v3 functions:
3926 they shouldn't be called directly but wrapper functions should be used
3929 So we also now have some wrapper functions that call the X509at functions
3930 when passed certificate requests. (TO DO: similar things can be done with
3931 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
3932 things. Some of these need some d2i or i2d and print functionality
3933 because they handle more complex structures.)
3936 *) Add missing #ifndefs that caused missing symbols when building libssl
3937 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
3938 NO_RSA in ssl/s2*.c.
3939 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
3941 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
3942 has a return value which indicates the quality of the random data
3943 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
3944 error queue. New function RAND_pseudo_bytes() generates output that is
3945 guaranteed to be unique but not unpredictable. RAND_add is like
3946 RAND_seed, but takes an extra argument for an entropy estimate
3947 (RAND_seed always assumes full entropy).
3950 *) Do more iterations of Rabin-Miller probable prime test (specifically,
3951 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
3952 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
3953 in crypto/bn/bn_prime.c for the complete table). This guarantees a
3954 false-positive rate of at most 2^-80 for random input.
3957 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
3960 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
3961 in the 0.9.5 release), this returns the chain
3962 from an X509_CTX structure with a dup of the stack and all
3963 the X509 reference counts upped: so the stack will exist
3964 after X509_CTX_cleanup() has been called. Modify pkcs12.c
3967 Also make SSL_SESSION_print() print out the verify return
3971 *) Add manpage for the pkcs12 command. Also change the default
3972 behaviour so MAC iteration counts are used unless the new
3973 -nomaciter option is used. This improves file security and
3974 only older versions of MSIE (4.0 for example) need it.
3977 *) Honor the no-xxx Configure options when creating .DEF files.
3980 *) Add PKCS#10 attributes to field table: challengePassword,
3981 unstructuredName and unstructuredAddress. These are taken from
3982 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
3983 international characters are used.
3985 More changes to X509_ATTRIBUTE code: allow the setting of types
3986 based on strings. Remove the 'loc' parameter when adding
3987 attributes because these will be a SET OF encoding which is sorted
3991 *) Initial changes to the 'req' utility to allow request generation
3992 automation. This will allow an application to just generate a template
3993 file containing all the field values and have req construct the
3996 Initial support for X509_ATTRIBUTE handling. Stacks of these are
3997 used all over the place including certificate requests and PKCS#7
3998 structures. They are currently handled manually where necessary with
3999 some primitive wrappers for PKCS#7. The new functions behave in a
4000 manner analogous to the X509 extension functions: they allow
4001 attributes to be looked up by NID and added.
4003 Later something similar to the X509V3 code would be desirable to
4004 automatically handle the encoding, decoding and printing of the
4005 more complex types. The string types like challengePassword can
4006 be handled by the string table functions.
4008 Also modified the multi byte string table handling. Now there is
4009 a 'global mask' which masks out certain types. The table itself
4010 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4011 is useful when for example there is only one permissible type
4012 (as in countryName) and using the mask might result in no valid
4016 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4017 SSL_get_peer_finished to allow applications to obtain the latest
4018 Finished messages sent to the peer or expected from the peer,
4019 respectively. (SSL_get_peer_finished is usually the Finished message
4020 actually received from the peer, otherwise the protocol will be aborted.)
4022 As the Finished message are message digests of the complete handshake
4023 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4024 be used for external authentication procedures when the authentication
4025 provided by SSL/TLS is not desired or is not enough.
4028 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4029 the host supports BWX extension and if Compaq C is present on the
4030 $PATH. Just exploiting of the BWX extension results in 20-30%
4031 performance kick for some algorithms, e.g. DES and RC4 to mention
4032 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4036 *) Add support for MS "fast SGC". This is arguably a violation of the
4037 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4038 weak crypto and after checking the certificate is SGC a second one
4039 with strong crypto. MS SGC stops the first handshake after receiving
4040 the server certificate message and sends a second client hello. Since
4041 a server will typically do all the time consuming operations before
4042 expecting any further messages from the client (server key exchange
4043 is the most expensive) there is little difference between the two.
4045 To get OpenSSL to support MS SGC we have to permit a second client
4046 hello message after we have sent server done. In addition we have to
4047 reset the MAC if we do get this second client hello.
4050 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4051 if a DER encoded private key is RSA or DSA traditional format. Changed
4052 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4053 format DER encoded private key. Newer code should use PKCS#8 format which
4054 has the key type encoded in the ASN1 structure. Added DER private key
4055 support to pkcs8 application.
4058 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4059 ciphersuites has been selected (as required by the SSL 3/TLS 1
4060 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4061 is set, we interpret this as a request to violate the specification
4062 (the worst that can happen is a handshake failure, and 'correct'
4063 behaviour would result in a handshake failure anyway).
4066 *) In SSL_CTX_add_session, take into account that there might be multiple
4067 SSL_SESSION structures with the same session ID (e.g. when two threads
4068 concurrently obtain them from an external cache).
4069 The internal cache can handle only one SSL_SESSION with a given ID,
4070 so if there's a conflict, we now throw out the old one to achieve
4074 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4075 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4076 some routines that use cipher OIDs: some ciphers do not have OIDs
4077 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4081 *) Simplify the trust setting structure and code. Now we just have
4082 two sequences of OIDs for trusted and rejected settings. These will
4083 typically have values the same as the extended key usage extension
4084 and any application specific purposes.
4086 The trust checking code now has a default behaviour: it will just
4087 check for an object with the same NID as the passed id. Functions can
4088 be provided to override either the default behaviour or the behaviour
4089 for a given id. SSL client, server and email already have functions
4090 in place for compatibility: they check the NID and also return "trusted"
4091 if the certificate is self signed.
4094 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
4095 traditional format into an EVP_PKEY structure.
4098 *) Add a password callback function PEM_cb() which either prompts for
4099 a password if usr_data is NULL or otherwise assumes it is a null
4100 terminated password. Allow passwords to be passed on command line
4101 environment or config files in a few more utilities.
4104 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
4105 keys. Add some short names for PKCS#8 PBE algorithms and allow them
4106 to be specified on the command line for the pkcs8 and pkcs12 utilities.
4107 Update documentation.
4110 *) Support for ASN1 "NULL" type. This could be handled before by using
4111 ASN1_TYPE but there wasn't any function that would try to read a NULL
4112 and produce an error if it couldn't. For compatibility we also have
4113 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
4114 don't allocate anything because they don't need to.
4117 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
4119 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
4121 *) Rebuild of the memory allocation routines used by OpenSSL code and
4122 possibly others as well. The purpose is to make an interface that
4123 provide hooks so anyone can build a separate set of allocation and
4124 deallocation routines to be used by OpenSSL, for example memory
4125 pool implementations, or something else, which was previously hard
4126 since Malloc(), Realloc() and Free() were defined as macros having
4127 the values malloc, realloc and free, respectively (except for Win32
4128 compilations). The same is provided for memory debugging code.
4129 OpenSSL already comes with functionality to find memory leaks, but
4130 this gives people a chance to debug other memory problems.
4132 With these changes, a new set of functions and macros have appeared:
4134 CRYPTO_set_mem_debug_functions() [F]
4135 CRYPTO_get_mem_debug_functions() [F]
4136 CRYPTO_dbg_set_options() [F]
4137 CRYPTO_dbg_get_options() [F]
4138 CRYPTO_malloc_debug_init() [M]
4140 The memory debug functions are NULL by default, unless the library
4141 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
4142 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
4143 gives the standard debugging functions that come with OpenSSL) or
4144 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
4145 provided by the library user) must be used. When the standard
4146 debugging functions are used, CRYPTO_dbg_set_options can be used to
4147 request additional information:
4148 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
4149 the CRYPTO_MDEBUG_xxx macro when compiling the library.
4151 Also, things like CRYPTO_set_mem_functions will always give the
4152 expected result (the new set of functions is used for allocation
4153 and deallocation) at all times, regardless of platform and compiler
4156 To finish it up, some functions that were never use in any other
4157 way than through macros have a new API and new semantic:
4160 CRYPTO_dbg_realloc()
4163 All macros of value have retained their old syntax.
4164 [Richard Levitte and Bodo Moeller]
4166 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
4167 ordering of SMIMECapabilities wasn't in "strength order" and there
4168 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
4172 *) Some ASN1 types with illegal zero length encoding (INTEGER,
4173 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
4174 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
4176 *) Merge in my S/MIME library for OpenSSL. This provides a simple
4177 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
4178 functionality to handle multipart/signed properly) and a utility
4179 called 'smime' to call all this stuff. This is based on code I
4180 originally wrote for Celo who have kindly allowed it to be
4181 included in OpenSSL.
4184 *) Add variants des_set_key_checked and des_set_key_unchecked of
4185 des_set_key (aka des_key_sched). Global variable des_check_key
4186 decides which of these is called by des_set_key; this way
4187 des_check_key behaves as it always did, but applications and
4188 the library itself, which was buggy for des_check_key == 1,
4189 have a cleaner way to pick the version they need.
4192 *) New function PKCS12_newpass() which changes the password of a
4196 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
4197 dynamic mix. In both cases the ids can be used as an index into the
4198 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
4199 functions so they accept a list of the field values and the
4200 application doesn't need to directly manipulate the X509_TRUST
4204 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
4208 *) Modify the way the V3 extension code looks up extensions. This now
4209 works in a similar way to the object code: we have some "standard"
4210 extensions in a static table which is searched with OBJ_bsearch()
4211 and the application can add dynamic ones if needed. The file
4212 crypto/x509v3/ext_dat.h now has the info: this file needs to be
4213 updated whenever a new extension is added to the core code and kept
4214 in ext_nid order. There is a simple program 'tabtest.c' which checks
4215 this. New extensions are not added too often so this file can readily
4216 be maintained manually.
4218 There are two big advantages in doing things this way. The extensions
4219 can be looked up immediately and no longer need to be "added" using
4220 X509V3_add_standard_extensions(): this function now does nothing.
4221 [Side note: I get *lots* of email saying the extension code doesn't
4222 work because people forget to call this function]
4223 Also no dynamic allocation is done unless new extensions are added:
4224 so if we don't add custom extensions there is no need to call
4225 X509V3_EXT_cleanup().
4228 *) Modify enc utility's salting as follows: make salting the default. Add a
4229 magic header, so unsalted files fail gracefully instead of just decrypting
4230 to garbage. This is because not salting is a big security hole, so people
4231 should be discouraged from doing it.
4234 *) Fixes and enhancements to the 'x509' utility. It allowed a message
4235 digest to be passed on the command line but it only used this
4236 parameter when signing a certificate. Modified so all relevant
4237 operations are affected by the digest parameter including the
4238 -fingerprint and -x509toreq options. Also -x509toreq choked if a
4239 DSA key was used because it didn't fix the digest.
4242 *) Initial certificate chain verify code. Currently tests the untrusted
4243 certificates for consistency with the verify purpose (which is set
4244 when the X509_STORE_CTX structure is set up) and checks the pathlength.
4246 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
4247 this is because it will reject chains with invalid extensions whereas
4248 every previous version of OpenSSL and SSLeay made no checks at all.
4250 Trust code: checks the root CA for the relevant trust settings. Trust
4251 settings have an initial value consistent with the verify purpose: e.g.
4252 if the verify purpose is for SSL client use it expects the CA to be
4253 trusted for SSL client use. However the default value can be changed to
4254 permit custom trust settings: one example of this would be to only trust
4255 certificates from a specific "secure" set of CAs.
4257 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
4258 which should be used for version portability: especially since the
4259 verify structure is likely to change more often now.
4261 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
4262 to set them. If not set then assume SSL clients will verify SSL servers
4265 Two new options to the verify program: -untrusted allows a set of
4266 untrusted certificates to be passed in and -purpose which sets the
4267 intended purpose of the certificate. If a purpose is set then the
4268 new chain verify code is used to check extension consistency.
4271 *) Support for the authority information access extension.
4274 *) Modify RSA and DSA PEM read routines to transparently handle
4275 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
4276 public keys in a format compatible with certificate
4277 SubjectPublicKeyInfo structures. Unfortunately there were already
4278 functions called *_PublicKey_* which used various odd formats so
4279 these are retained for compatibility: however the DSA variants were
4280 never in a public release so they have been deleted. Changed dsa/rsa
4281 utilities to handle the new format: note no releases ever handled public
4282 keys so we should be OK.
4284 The primary motivation for this change is to avoid the same fiasco
4285 that dogs private keys: there are several incompatible private key
4286 formats some of which are standard and some OpenSSL specific and
4287 require various evil hacks to allow partial transparent handling and
4288 even then it doesn't work with DER formats. Given the option anything
4289 other than PKCS#8 should be dumped: but the other formats have to
4290 stay in the name of compatibility.
4292 With public keys and the benefit of hindsight one standard format
4293 is used which works with EVP_PKEY, RSA or DSA structures: though
4294 it clearly returns an error if you try to read the wrong kind of key.
4296 Added a -pubkey option to the 'x509' utility to output the public key.
4297 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
4298 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
4299 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
4300 that do the same as the EVP_PKEY_assign_*() except they up the
4301 reference count of the added key (they don't "swallow" the
4305 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
4306 CRLs would fail if the file contained no certificates or no CRLs:
4307 added a new function to read in both types and return the number
4308 read: this means that if none are read it will be an error. The
4309 DER versions of the certificate and CRL reader would always fail
4310 because it isn't possible to mix certificates and CRLs in DER format
4311 without choking one or the other routine. Changed this to just read
4312 a certificate: this is the best we can do. Also modified the code
4313 in apps/verify.c to take notice of return codes: it was previously
4314 attempting to read in certificates from NULL pointers and ignoring
4315 any errors: this is one reason why the cert and CRL reader seemed
4316 to work. It doesn't check return codes from the default certificate
4317 routines: these may well fail if the certificates aren't installed.
4320 *) Code to support otherName option in GeneralName.
4323 *) First update to verify code. Change the verify utility
4324 so it warns if it is passed a self signed certificate:
4325 for consistency with the normal behaviour. X509_verify
4326 has been modified to it will now verify a self signed
4327 certificate if *exactly* the same certificate appears
4328 in the store: it was previously impossible to trust a
4329 single self signed certificate. This means that:
4330 openssl verify ss.pem
4331 now gives a warning about a self signed certificate but
4332 openssl verify -CAfile ss.pem ss.pem
4336 *) For servers, store verify_result in SSL_SESSION data structure
4337 (and add it to external session representation).
4338 This is needed when client certificate verifications fails,
4339 but an application-provided verification callback (set by
4340 SSL_CTX_set_cert_verify_callback) allows accepting the session
4341 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
4342 but returns 1): When the session is reused, we have to set
4343 ssl->verify_result to the appropriate error code to avoid
4345 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
4347 *) Fix a bug in the new PKCS#7 code: it didn't consider the
4348 case in PKCS7_dataInit() where the signed PKCS7 structure
4349 didn't contain any existing data because it was being created.
4350 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
4352 *) Add a salt to the key derivation routines in enc.c. This
4353 forms the first 8 bytes of the encrypted file. Also add a
4354 -S option to allow a salt to be input on the command line.
4357 *) New function X509_cmp(). Oddly enough there wasn't a function
4358 to compare two certificates. We do this by working out the SHA1
4359 hash and comparing that. X509_cmp() will be needed by the trust
4363 *) SSL_get1_session() is like SSL_get_session(), but increments
4364 the reference count in the SSL_SESSION returned.
4365 [Geoff Thorpe <geoff@eu.c2.net>]
4367 *) Fix for 'req': it was adding a null to request attributes.
4368 Also change the X509_LOOKUP and X509_INFO code to handle
4369 certificate auxiliary information.
4372 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
4376 *) Add the possibility to add extra information to the memory leak
4377 detecting output, to form tracebacks, showing from where each
4378 allocation was originated: CRYPTO_push_info("constant string") adds
4379 the string plus current file name and line number to a per-thread
4380 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
4381 is like calling CYRPTO_pop_info() until the stack is empty.
4382 Also updated memory leak detection code to be multi-thread-safe.
4385 *) Add options -text and -noout to pkcs7 utility and delete the
4386 encryption options which never did anything. Update docs.
4389 *) Add options to some of the utilities to allow the pass phrase
4390 to be included on either the command line (not recommended on
4391 OSes like Unix) or read from the environment. Update the
4392 manpages and fix a few bugs.
4395 *) Add a few manpages for some of the openssl commands.
4398 *) Fix the -revoke option in ca. It was freeing up memory twice,
4399 leaking and not finding already revoked certificates.
4402 *) Extensive changes to support certificate auxiliary information.
4403 This involves the use of X509_CERT_AUX structure and X509_AUX
4404 functions. An X509_AUX function such as PEM_read_X509_AUX()
4405 can still read in a certificate file in the usual way but it
4406 will also read in any additional "auxiliary information". By
4407 doing things this way a fair degree of compatibility can be
4408 retained: existing certificates can have this information added
4409 using the new 'x509' options.
4411 Current auxiliary information includes an "alias" and some trust
4412 settings. The trust settings will ultimately be used in enhanced
4413 certificate chain verification routines: currently a certificate
4414 can only be trusted if it is self signed and then it is trusted
4418 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
4419 The problem was that one of the replacement routines had not been working
4420 since SSLeay releases. For now the offending routine has been replaced
4421 with non-optimised assembler. Even so, this now gives around 95%
4422 performance improvement for 1024 bit RSA signs.
4425 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
4426 handling. Most clients have the effective key size in bits equal to
4427 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
4428 A few however don't do this and instead use the size of the decrypted key
4429 to determine the RC2 key length and the AlgorithmIdentifier to determine
4430 the effective key length. In this case the effective key length can still
4431 be 40 bits but the key length can be 168 bits for example. This is fixed
4432 by manually forcing an RC2 key into the EVP_PKEY structure because the
4433 EVP code can't currently handle unusual RC2 key sizes: it always assumes
4434 the key length and effective key length are equal.
4437 *) Add a bunch of functions that should simplify the creation of
4438 X509_NAME structures. Now you should be able to do:
4439 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
4440 and have it automatically work out the correct field type and fill in
4441 the structures. The more adventurous can try:
4442 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
4443 and it will (hopefully) work out the correct multibyte encoding.
4446 *) Change the 'req' utility to use the new field handling and multibyte
4447 copy routines. Before the DN field creation was handled in an ad hoc
4448 way in req, ca, and x509 which was rather broken and didn't support
4449 BMPStrings or UTF8Strings. Since some software doesn't implement
4450 BMPStrings or UTF8Strings yet, they can be enabled using the config file
4451 using the dirstring_type option. See the new comment in the default
4452 openssl.cnf for more info.
4455 *) Make crypto/rand/md_rand.c more robust:
4456 - Assure unique random numbers after fork().
4457 - Make sure that concurrent threads access the global counter and
4458 md serializably so that we never lose entropy in them
4459 or use exactly the same state in multiple threads.
4460 Access to the large state is not always serializable because
4461 the additional locking could be a performance killer, and
4462 md should be large enough anyway.
4465 *) New file apps/app_rand.c with commonly needed functionality
4466 for handling the random seed file.
4468 Use the random seed file in some applications that previously did not:
4470 dsaparam -genkey (which also ignored its '-rand' option),
4473 x509 (when signing).
4474 Except on systems with /dev/urandom, it is crucial to have a random
4475 seed file at least for key creation, DSA signing, and for DH exchanges;
4476 for RSA signatures we could do without one.
4478 gendh and gendsa (unlike genrsa) used to read only the first byte
4479 of each file listed in the '-rand' option. The function as previously
4480 found in genrsa is now in app_rand.c and is used by all programs
4481 that support '-rand'.
4484 *) In RAND_write_file, use mode 0600 for creating files;
4485 don't just chmod when it may be too late.
4488 *) Report an error from X509_STORE_load_locations
4489 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
4492 *) New function ASN1_mbstring_copy() this copies a string in either
4493 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
4494 into an ASN1_STRING type. A mask of permissible types is passed
4495 and it chooses the "minimal" type to use or an error if not type
4499 *) Add function equivalents to the various macros in asn1.h. The old
4500 macros are retained with an M_ prefix. Code inside the library can
4501 use the M_ macros. External code (including the openssl utility)
4502 should *NOT* in order to be "shared library friendly".
4505 *) Add various functions that can check a certificate's extensions
4506 to see if it usable for various purposes such as SSL client,
4507 server or S/MIME and CAs of these types. This is currently
4508 VERY EXPERIMENTAL but will ultimately be used for certificate chain
4509 verification. Also added a -purpose flag to x509 utility to
4510 print out all the purposes.
4513 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
4517 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
4518 for, obtain and decode and extension and obtain its critical flag.
4519 This allows all the necessary extension code to be handled in a
4520 single function call.
4523 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
4524 platforms. See crypto/rc4/rc4_enc.c for further details.
4527 *) New -noout option to asn1parse. This causes no output to be produced
4528 its main use is when combined with -strparse and -out to extract data
4529 from a file (which may not be in ASN.1 format).
4532 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
4533 when producing the local key id.
4534 [Richard Levitte <levitte@stacken.kth.se>]
4536 *) New option -dhparam in s_server. This allows a DH parameter file to be
4537 stated explicitly. If it is not stated then it tries the first server
4538 certificate file. The previous behaviour hard coded the filename
4542 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
4543 a public key to be input or output. For example:
4544 openssl rsa -in key.pem -pubout -out pubkey.pem
4545 Also added necessary DSA public key functions to handle this.
4548 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
4549 in the message. This was handled by allowing
4550 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
4551 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
4553 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
4554 to the end of the strings whereas this didn't. This would cause problems
4555 if strings read with d2i_ASN1_bytes() were later modified.
4556 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
4558 *) Fix for base64 decode bug. When a base64 bio reads only one line of
4559 data and it contains EOF it will end up returning an error. This is
4560 caused by input 46 bytes long. The cause is due to the way base64
4561 BIOs find the start of base64 encoded data. They do this by trying a
4562 trial decode on each line until they find one that works. When they
4563 do a flag is set and it starts again knowing it can pass all the
4564 data directly through the decoder. Unfortunately it doesn't reset
4565 the context it uses. This means that if EOF is reached an attempt
4566 is made to pass two EOFs through the context and this causes the
4567 resulting error. This can also cause other problems as well. As is
4568 usual with these problems it takes *ages* to find and the fix is
4569 trivial: move one line.
4570 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
4572 *) Ugly workaround to get s_client and s_server working under Windows. The
4573 old code wouldn't work because it needed to select() on sockets and the
4574 tty (for keypresses and to see if data could be written). Win32 only
4575 supports select() on sockets so we select() with a 1s timeout on the
4576 sockets and then see if any characters are waiting to be read, if none
4577 are present then we retry, we also assume we can always write data to
4578 the tty. This isn't nice because the code then blocks until we've
4579 received a complete line of data and it is effectively polling the
4580 keyboard at 1s intervals: however it's quite a bit better than not
4581 working at all :-) A dedicated Windows application might handle this
4582 with an event loop for example.
4585 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
4586 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
4587 will be called when RSA_sign() and RSA_verify() are used. This is useful
4588 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
4589 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
4590 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
4591 This necessitated the support of an extra signature type NID_md5_sha1
4592 for SSL signatures and modifications to the SSL library to use it instead
4593 of calling RSA_public_decrypt() and RSA_private_encrypt().
4596 *) Add new -verify -CAfile and -CApath options to the crl program, these
4597 will lookup a CRL issuers certificate and verify the signature in a
4598 similar way to the verify program. Tidy up the crl program so it
4599 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
4600 less strict. It will now permit CRL extensions even if it is not
4601 a V2 CRL: this will allow it to tolerate some broken CRLs.
4604 *) Initialize all non-automatic variables each time one of the openssl
4605 sub-programs is started (this is necessary as they may be started
4606 multiple times from the "OpenSSL>" prompt).
4607 [Lennart Bang, Bodo Moeller]
4609 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
4610 removing all other RSA functionality (this is what NO_RSA does). This
4611 is so (for example) those in the US can disable those operations covered
4612 by the RSA patent while allowing storage and parsing of RSA keys and RSA
4616 *) Non-copying interface to BIO pairs.
4617 (still largely untested)
4620 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
4621 ASCII string. This was handled independently in various places before.
4624 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
4625 UTF8 strings a character at a time.
4628 *) Use client_version from client hello to select the protocol
4629 (s23_srvr.c) and for RSA client key exchange verification
4630 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
4633 *) Add various utility functions to handle SPKACs, these were previously
4634 handled by poking round in the structure internals. Added new function
4635 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
4636 print, verify and generate SPKACs. Based on an original idea from
4637 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
4640 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
4643 *) Allow the config file extension section to be overwritten on the
4644 command line. Based on an original idea from Massimiliano Pala
4645 <madwolf@comune.modena.it>. The new option is called -extensions
4646 and can be applied to ca, req and x509. Also -reqexts to override
4647 the request extensions in req and -crlexts to override the crl extensions
4651 *) Add new feature to the SPKAC handling in ca. Now you can include
4652 the same field multiple times by preceding it by "XXXX." for example:
4655 this is the same syntax as used in the req config file.
4658 *) Allow certificate extensions to be added to certificate requests. These
4659 are specified in a 'req_extensions' option of the req section of the
4660 config file. They can be printed out with the -text option to req but
4661 are otherwise ignored at present.
4664 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
4665 data read consists of only the final block it would not decrypted because
4666 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
4667 A misplaced 'break' also meant the decrypted final block might not be
4668 copied until the next read.
4671 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
4672 a few extra parameters to the DH structure: these will be useful if
4673 for example we want the value of 'q' or implement X9.42 DH.
4676 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
4677 provides hooks that allow the default DSA functions or functions on a
4678 "per key" basis to be replaced. This allows hardware acceleration and
4679 hardware key storage to be handled without major modification to the
4680 library. Also added low level modexp hooks and CRYPTO_EX structure and
4681 associated functions.
4684 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
4685 as "read only": it can't be written to and the buffer it points to will
4686 not be freed. Reading from a read only BIO is much more efficient than
4687 a normal memory BIO. This was added because there are several times when
4688 an area of memory needs to be read from a BIO. The previous method was
4689 to create a memory BIO and write the data to it, this results in two
4690 copies of the data and an O(n^2) reading algorithm. There is a new
4691 function BIO_new_mem_buf() which creates a read only memory BIO from
4692 an area of memory. Also modified the PKCS#7 routines to use read only
4696 *) Bugfix: ssl23_get_client_hello did not work properly when called in
4697 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
4698 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
4699 but a retry condition occured while trying to read the rest.
4702 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
4703 NID_pkcs7_encrypted by default: this was wrong since this should almost
4704 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
4705 the encrypted data type: this is a more sensible place to put it and it
4706 allows the PKCS#12 code to be tidied up that duplicated this
4710 *) Changed obj_dat.pl script so it takes its input and output files on
4711 the command line. This should avoid shell escape redirection problems
4715 *) Initial support for certificate extension requests, these are included
4716 in things like Xenroll certificate requests. Included functions to allow
4717 extensions to be obtained and added.
4720 *) -crlf option to s_client and s_server for sending newlines as
4721 CRLF (as required by many protocols).
4724 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
4726 *) Install libRSAglue.a when OpenSSL is built with RSAref.
4727 [Ralf S. Engelschall]
4729 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
4730 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
4732 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
4736 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
4737 DH parameters/keys (q is lost during that conversion, but the resulting
4738 DH parameters contain its length).
4740 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
4741 much faster than DH_generate_parameters (which creates parameters
4742 where p = 2*q + 1), and also the smaller q makes DH computations
4743 much more efficient (160-bit exponentiation instead of 1024-bit
4744 exponentiation); so this provides a convenient way to support DHE
4745 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
4746 utter importance to use
4747 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
4749 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
4750 when such DH parameters are used, because otherwise small subgroup
4751 attacks may become possible!
4754 *) Avoid memory leak in i2d_DHparams.
4757 *) Allow the -k option to be used more than once in the enc program:
4758 this allows the same encrypted message to be read by multiple recipients.
4761 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
4762 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
4763 it will always use the numerical form of the OID, even if it has a short
4767 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
4768 method only got called if p,q,dmp1,dmq1,iqmp components were present,
4769 otherwise bn_mod_exp was called. In the case of hardware keys for example
4770 no private key components need be present and it might store extra data
4771 in the RSA structure, which cannot be accessed from bn_mod_exp.
4772 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
4773 private key operations.
4776 *) Added support for SPARC Linux.
4779 *) pem_password_cb function type incompatibly changed from
4780 typedef int pem_password_cb(char *buf, int size, int rwflag);
4782 ....(char *buf, int size, int rwflag, void *userdata);
4783 so that applications can pass data to their callbacks:
4784 The PEM[_ASN1]_{read,write}... functions and macros now take an
4785 additional void * argument, which is just handed through whenever
4786 the password callback is called.
4787 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
4789 New function SSL_CTX_set_default_passwd_cb_userdata.
4791 Compatibility note: As many C implementations push function arguments
4792 onto the stack in reverse order, the new library version is likely to
4793 interoperate with programs that have been compiled with the old
4794 pem_password_cb definition (PEM_whatever takes some data that
4795 happens to be on the stack as its last argument, and the callback
4796 just ignores this garbage); but there is no guarantee whatsoever that
4799 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
4800 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
4801 problems not only on Windows, but also on some Unix platforms.
4802 To avoid problematic command lines, these definitions are now in an
4803 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
4804 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
4807 *) MIPS III/IV assembler module is reimplemented.
4810 *) More DES library cleanups: remove references to srand/rand and
4811 delete an unused file.
4814 *) Add support for the the free Netwide assembler (NASM) under Win32,
4815 since not many people have MASM (ml) and it can be hard to obtain.
4816 This is currently experimental but it seems to work OK and pass all
4817 the tests. Check out INSTALL.W32 for info.
4820 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
4821 without temporary keys kept an extra copy of the server key,
4822 and connections with temporary keys did not free everything in case
4826 *) New function RSA_check_key and new openssl rsa option -check
4827 for verifying the consistency of RSA keys.
4828 [Ulf Moeller, Bodo Moeller]
4830 *) Various changes to make Win32 compile work:
4831 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
4832 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
4833 comparison" warnings.
4834 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
4837 *) Add a debugging option to PKCS#5 v2 key generation function: when
4838 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
4839 derived keys are printed to stderr.
4842 *) Copy the flags in ASN1_STRING_dup().
4843 [Roman E. Pavlov <pre@mo.msk.ru>]
4845 *) The x509 application mishandled signing requests containing DSA
4846 keys when the signing key was also DSA and the parameters didn't match.
4848 It was supposed to omit the parameters when they matched the signing key:
4849 the verifying software was then supposed to automatically use the CA's
4850 parameters if they were absent from the end user certificate.
4852 Omitting parameters is no longer recommended. The test was also
4853 the wrong way round! This was probably due to unusual behaviour in
4854 EVP_cmp_parameters() which returns 1 if the parameters match.
4855 This meant that parameters were omitted when they *didn't* match and
4856 the certificate was useless. Certificates signed with 'ca' didn't have
4858 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
4860 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
4861 The interface is as follows:
4862 Applications can use
4863 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
4864 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
4865 "off" is now the default.
4866 The library internally uses
4867 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
4868 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
4869 to disable memory-checking temporarily.
4871 Some inconsistent states that previously were possible (and were
4872 even the default) are now avoided.
4874 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
4875 with each memory chunk allocated; this is occasionally more helpful
4876 than just having a counter.
4878 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
4880 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
4884 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
4885 which largely parallels "options", but is for changing API behaviour,
4886 whereas "options" are about protocol behaviour.
4887 Initial "mode" flags are:
4889 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
4890 a single record has been written.
4891 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
4892 retries use the same buffer location.
4893 (But all of the contents must be
4897 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
4900 *) Fix problems with no-hmac etc.
4901 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
4903 *) New functions RSA_get_default_method(), RSA_set_method() and
4904 RSA_get_method(). These allows replacement of RSA_METHODs without having
4905 to mess around with the internals of an RSA structure.
4908 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
4909 Also really enable memory leak checks in openssl.c and in some
4911 [Chad C. Mulligan, Bodo Moeller]
4913 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
4914 up the length of negative integers. This has now been simplified to just
4915 store the length when it is first determined and use it later, rather
4916 than trying to keep track of where data is copied and updating it to
4918 [Steve Henson, reported by Brien Wheeler
4919 <bwheeler@authentica-security.com>]
4921 *) Add a new function PKCS7_signatureVerify. This allows the verification
4922 of a PKCS#7 signature but with the signing certificate passed to the
4923 function itself. This contrasts with PKCS7_dataVerify which assumes the
4924 certificate is present in the PKCS#7 structure. This isn't always the
4925 case: certificates can be omitted from a PKCS#7 structure and be
4926 distributed by "out of band" means (such as a certificate database).
4929 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
4930 function prototypes in pem.h, also change util/mkdef.pl to add the
4931 necessary function names.
4934 *) mk1mf.pl (used by Windows builds) did not properly read the
4935 options set by Configure in the top level Makefile, and Configure
4936 was not even able to write more than one option correctly.
4937 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
4940 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
4941 file to be loaded from a BIO or FILE pointer. The BIO version will
4942 for example allow memory BIOs to contain config info.
4945 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
4946 Whoever hopes to achieve shared-library compatibility across versions
4947 must use this, not the compile-time macro.
4948 (Exercise 0.9.4: Which is the minimum library version required by
4950 Note: All this applies only to multi-threaded programs, others don't
4954 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
4955 through a BIO pair triggered the default case, i.e.
4956 SSLerr(...,SSL_R_UNKNOWN_STATE).
4959 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
4960 can use the SSL library even if none of the specific BIOs is
4964 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
4965 for the encoded length.
4966 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
4968 *) Add initial documentation of the X509V3 functions.
4971 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
4972 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
4973 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
4974 secure PKCS#8 private key format with a high iteration count.
4977 *) Fix determination of Perl interpreter: A perl or perl5
4978 _directory_ in $PATH was also accepted as the interpreter.
4979 [Ralf S. Engelschall]
4981 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
4982 wrong with it but it was very old and did things like calling
4983 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
4987 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
4988 to use the new extension code.
4991 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
4992 with macros. This should make it easier to change their form, add extra
4993 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
4997 *) Add to configuration table a new entry that can specify an alternative
4998 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
4999 according to Mark Crispin <MRC@Panda.COM>.
5003 *) DES CBC did not update the IV. Weird.
5006 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5007 Changing the behaviour of the former might break existing programs --
5008 where IV updating is needed, des_ncbc_encrypt can be used.
5011 *) When bntest is run from "make test" it drives bc to check its
5012 calculations, as well as internally checking them. If an internal check
5013 fails, it needs to cause bc to give a non-zero result or make test carries
5014 on without noticing the failure. Fixed.
5017 *) DES library cleanups.
5020 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5021 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5022 ciphers. NOTE: although the key derivation function has been verified
5023 against some published test vectors it has not been extensively tested
5024 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5028 *) Instead of "mkdir -p", which is not fully portable, use new
5029 Perl script "util/mkdir-p.pl".
5032 *) Rewrite the way password based encryption (PBE) is handled. It used to
5033 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5034 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5035 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5036 the 'parameter' field of the AlgorithmIdentifier is passed to the
5037 underlying key generation function so it must do its own ASN1 parsing.
5038 This has also changed the EVP_PBE_CipherInit() function which now has a
5039 'parameter' argument instead of literal salt and iteration count values
5040 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5043 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5044 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5045 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5046 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5047 value was just used as a "magic string" and not used directly its
5048 value doesn't matter.
5051 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5055 *) "linux-sparc64" configuration (ultrapenguin).
5056 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5057 "linux-sparc" configuration.
5058 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5060 *) config now generates no-xxx options for missing ciphers.
5063 *) Support the EBCDIC character set (work in progress).
5064 File ebcdic.c not yet included because it has a different license.
5065 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5067 *) Support BS2000/OSD-POSIX.
5068 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5070 *) Make callbacks for key generation use void * instead of char *.
5073 *) Make S/MIME samples compile (not yet tested).
5076 *) Additional typesafe stacks.
5079 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5083 Changes between 0.9.3 and 0.9.3a [29 May 1999]
5085 *) New configuration variant "sco5-gcc".
5087 *) Updated some demos.
5088 [Sean O Riordain, Wade Scholine]
5090 *) Add missing BIO_free at exit of pkcs12 application.
5093 *) Fix memory leak in conf.c.
5096 *) Updates for Win32 to assembler version of MD5.
5099 *) Set #! path to perl in apps/der_chop to where we found it
5100 instead of using a fixed path.
5103 *) SHA library changes for irix64-mips4-cc.
5106 *) Improvements for VMS support.
5110 Changes between 0.9.2b and 0.9.3 [24 May 1999]
5112 *) Bignum library bug fix. IRIX 6 passes "make test" now!
5113 This also avoids the problems with SC4.2 and unpatched SC5.
5114 [Andy Polyakov <appro@fy.chalmers.se>]
5116 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
5117 These are required because of the typesafe stack would otherwise break
5118 existing code. If old code used a structure member which used to be STACK
5119 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
5120 sk_num or sk_value it would produce an error because the num, data members
5121 are not present in STACK_OF. Now it just produces a warning. sk_set
5122 replaces the old method of assigning a value to sk_value
5123 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
5124 that does this will no longer work (and should use sk_set instead) but
5125 this could be regarded as a "questionable" behaviour anyway.
5128 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
5129 correctly handle encrypted S/MIME data.
5132 *) Change type of various DES function arguments from des_cblock
5133 (which means, in function argument declarations, pointer to char)
5134 to des_cblock * (meaning pointer to array with 8 char elements),
5135 which allows the compiler to do more typechecking; it was like
5136 that back in SSLeay, but with lots of ugly casts.
5138 Introduce new type const_des_cblock.
5141 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
5142 problems: find RecipientInfo structure that matches recipient certificate
5143 and initialise the ASN1 structures properly based on passed cipher.
5146 *) Belatedly make the BN tests actually check the results.
5149 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
5150 to and from BNs: it was completely broken. New compilation option
5151 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
5152 key elements as negative integers.
5155 *) Reorganize and speed up MD5.
5156 [Andy Polyakov <appro@fy.chalmers.se>]
5159 [Richard Levitte <richard@levitte.org>]
5161 *) New option -out to asn1parse to allow the parsed structure to be
5162 output to a file. This is most useful when combined with the -strparse
5163 option to examine the output of things like OCTET STRINGS.
5166 *) Make SSL library a little more fool-proof by not requiring any longer
5167 that SSL_set_{accept,connect}_state be called before
5168 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
5169 in many applications because usually everything *appeared* to work as
5170 intended anyway -- now it really works as intended).
5173 *) Move openssl.cnf out of lib/.
5176 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
5177 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
5178 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
5179 [Ralf S. Engelschall]
5181 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
5182 handle PKCS#7 enveloped data properly.
5183 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
5185 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
5186 copying pointers. The cert_st handling is changed by this in
5187 various ways (and thus what used to be known as ctx->default_cert
5188 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
5189 any longer when s->cert does not give us what we need).
5190 ssl_cert_instantiate becomes obsolete by this change.
5191 As soon as we've got the new code right (possibly it already is?),
5192 we have solved a couple of bugs of the earlier code where s->cert
5193 was used as if it could not have been shared with other SSL structures.
5195 Note that using the SSL API in certain dirty ways now will result
5196 in different behaviour than observed with earlier library versions:
5197 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
5198 does not influence s as it used to.
5200 In order to clean up things more thoroughly, inside SSL_SESSION
5201 we don't use CERT any longer, but a new structure SESS_CERT
5202 that holds per-session data (if available); currently, this is
5203 the peer's certificate chain and, for clients, the server's certificate
5204 and temporary key. CERT holds only those values that can have
5205 meaningful defaults in an SSL_CTX.
5208 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
5209 from the internal representation. Various PKCS#7 fixes: remove some
5210 evil casts and set the enc_dig_alg field properly based on the signing
5214 *) Allow PKCS#12 password to be set from the command line or the
5215 environment. Let 'ca' get its config file name from the environment
5216 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
5220 *) Allow certificate policies extension to use an IA5STRING for the
5221 organization field. This is contrary to the PKIX definition but
5222 VeriSign uses it and IE5 only recognises this form. Document 'x509'
5226 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
5227 without disallowing inline assembler and the like for non-pedantic builds.
5230 *) Support Borland C++ builder.
5231 [Janez Jere <jj@void.si>, modified by Ulf Möller]
5236 *) SHA-1 cleanups and performance enhancements.
5237 [Andy Polyakov <appro@fy.chalmers.se>]
5239 *) Sparc v8plus assembler for the bignum library.
5240 [Andy Polyakov <appro@fy.chalmers.se>]
5242 *) Accept any -xxx and +xxx compiler options in Configure.
5245 *) Update HPUX configuration.
5248 *) Add missing sk_<type>_unshift() function to safestack.h
5249 [Ralf S. Engelschall]
5251 *) New function SSL_CTX_use_certificate_chain_file that sets the
5252 "extra_cert"s in addition to the certificate. (This makes sense
5253 only for "PEM" format files, as chains as a whole are not
5257 *) Support verify_depth from the SSL API.
5258 x509_vfy.c had what can be considered an off-by-one-error:
5259 Its depth (which was not part of the external interface)
5260 was actually counting the number of certificates in a chain;
5261 now it really counts the depth.
5264 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
5265 instead of X509err, which often resulted in confusing error
5266 messages since the error codes are not globally unique
5267 (e.g. an alleged error in ssl3_accept when a certificate
5268 didn't match the private key).
5270 *) New function SSL_CTX_set_session_id_context that allows to set a default
5271 value (so that you don't need SSL_set_session_id_context for each
5272 connection using the SSL_CTX).
5275 *) OAEP decoding bug fix.
5278 *) Support INSTALL_PREFIX for package builders, as proposed by
5282 *) New Configure options "threads" and "no-threads". For systems
5283 where the proper compiler options are known (currently Solaris
5284 and Linux), "threads" is the default.
5287 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
5290 *) Install various scripts to $(OPENSSLDIR)/misc, not to
5291 $(INSTALLTOP)/bin -- they shouldn't clutter directories
5292 such as /usr/local/bin.
5295 *) "make linux-shared" to build shared libraries.
5296 [Niels Poppe <niels@netbox.org>]
5298 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
5301 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
5302 extension adding in x509 utility.
5305 *) Remove NOPROTO sections and error code comments.
5308 *) Partial rewrite of the DEF file generator to now parse the ANSI
5312 *) New Configure options --prefix=DIR and --openssldir=DIR.
5315 *) Complete rewrite of the error code script(s). It is all now handled
5316 by one script at the top level which handles error code gathering,
5317 header rewriting and C source file generation. It should be much better
5318 than the old method: it now uses a modified version of Ulf's parser to
5319 read the ANSI prototypes in all header files (thus the old K&R definitions
5320 aren't needed for error creation any more) and do a better job of
5321 translating function codes into names. The old 'ASN1 error code imbedded
5322 in a comment' is no longer necessary and it doesn't use .err files which
5323 have now been deleted. Also the error code call doesn't have to appear all
5324 on one line (which resulted in some large lines...).
5327 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
5330 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
5331 0 (which usually indicates a closed connection), but continue reading.
5334 *) Fix some race conditions.
5337 *) Add support for CRL distribution points extension. Add Certificate
5338 Policies and CRL distribution points documentation.
5341 *) Move the autogenerated header file parts to crypto/opensslconf.h.
5344 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
5345 8 of keying material. Merlin has also confirmed interop with this fix
5346 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
5347 [Merlin Hughes <merlin@baltimore.ie>]
5349 *) Fix lots of warnings.
5350 [Richard Levitte <levitte@stacken.kth.se>]
5352 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
5353 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
5354 [Richard Levitte <levitte@stacken.kth.se>]
5356 *) Fix problems with sizeof(long) == 8.
5357 [Andy Polyakov <appro@fy.chalmers.se>]
5359 *) Change functions to ANSI C.
5362 *) Fix typos in error codes.
5363 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
5365 *) Remove defunct assembler files from Configure.
5368 *) SPARC v8 assembler BIGNUM implementation.
5369 [Andy Polyakov <appro@fy.chalmers.se>]
5371 *) Support for Certificate Policies extension: both print and set.
5372 Various additions to support the r2i method this uses.
5375 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
5376 return a const string when you are expecting an allocated buffer.
5379 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
5380 types DirectoryString and DisplayText.
5383 *) Add code to allow r2i extensions to access the configuration database,
5384 add an LHASH database driver and add several ctx helper functions.
5387 *) Fix an evil bug in bn_expand2() which caused various BN functions to
5388 fail when they extended the size of a BIGNUM.
5391 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
5392 support typesafe stack.
5395 *) Fix typo in SSL_[gs]et_options().
5396 [Nils Frostberg <nils@medcom.se>]
5398 *) Delete various functions and files that belonged to the (now obsolete)
5399 old X509V3 handling code.
5402 *) New Configure option "rsaref".
5405 *) Don't auto-generate pem.h.
5408 *) Introduce type-safe ASN.1 SETs.
5411 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
5412 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
5414 *) Introduce type-safe STACKs. This will almost certainly break lots of code
5415 that links with OpenSSL (well at least cause lots of warnings), but fear
5416 not: the conversion is trivial, and it eliminates loads of evil casts. A
5417 few STACKed things have been converted already. Feel free to convert more.
5418 In the fullness of time, I'll do away with the STACK type altogether.
5421 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
5422 specified in <certfile> by updating the entry in the index.txt file.
5423 This way one no longer has to edit the index.txt file manually for
5424 revoking a certificate. The -revoke option does the gory details now.
5425 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
5427 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
5428 `-text' option at all and this way the `-noout -text' combination was
5429 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
5430 [Ralf S. Engelschall]
5432 *) Make sure a corresponding plain text error message exists for the
5433 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
5434 verify callback function determined that a certificate was revoked.
5435 [Ralf S. Engelschall]
5437 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
5438 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
5439 all available cipers including rc5, which was forgotten until now.
5440 In order to let the testing shell script know which algorithms
5441 are available, a new (up to now undocumented) command
5442 "openssl list-cipher-commands" is used.
5445 *) Bugfix: s_client occasionally would sleep in select() when
5446 it should have checked SSL_pending() first.
5449 *) New functions DSA_do_sign and DSA_do_verify to provide access to
5450 the raw DSA values prior to ASN.1 encoding.
5453 *) Tweaks to Configure
5454 [Niels Poppe <niels@netbox.org>]
5456 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
5460 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
5463 *) New config option to avoid instructions that are illegal on the 80386.
5464 The default code is faster, but requires at least a 486.
5467 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
5468 SSL2_SERVER_VERSION (not used at all) macros, which are now the
5469 same as SSL2_VERSION anyway.
5472 *) New "-showcerts" option for s_client.
5475 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
5476 application. Various cleanups and fixes.
5479 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
5480 modify error routines to work internally. Add error codes and PBE init
5481 to library startup routines.
5484 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
5485 packing functions to asn1 and evp. Changed function names and error
5486 codes along the way.
5489 *) PKCS12 integration: and so it begins... First of several patches to
5490 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
5491 objects to objects.h
5494 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
5495 and display support for Thawte strong extranet extension.
5498 *) Add LinuxPPC support.
5499 [Jeff Dubrule <igor@pobox.org>]
5501 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
5502 bn_div_words in alpha.s.
5503 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
5505 *) Make sure the RSA OAEP test is skipped under -DRSAref because
5506 OAEP isn't supported when OpenSSL is built with RSAref.
5507 [Ulf Moeller <ulf@fitug.de>]
5509 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
5510 so they no longer are missing under -DNOPROTO.
5511 [Soren S. Jorvang <soren@t.dk>]
5514 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
5516 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
5517 doesn't work when the session is reused. Coming soon!
5520 *) Fix a security hole, that allows sessions to be reused in the wrong
5521 context thus bypassing client cert protection! All software that uses
5522 client certs and session caches in multiple contexts NEEDS PATCHING to
5523 allow session reuse! A fuller solution is in the works.
5524 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
5526 *) Some more source tree cleanups (removed obsolete files
5527 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
5528 permission on "config" script to be executable) and a fix for the INSTALL
5530 [Ulf Moeller <ulf@fitug.de>]
5532 *) Remove some legacy and erroneous uses of malloc, free instead of
5534 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
5536 *) Make rsa_oaep_test return non-zero on error.
5537 [Ulf Moeller <ulf@fitug.de>]
5539 *) Add support for native Solaris shared libraries. Configure
5540 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
5541 if someone would make that last step automatic.
5542 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
5544 *) ctx_size was not built with the right compiler during "make links". Fixed.
5547 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
5548 except NULL ciphers". This means the default cipher list will no longer
5549 enable NULL ciphers. They need to be specifically enabled e.g. with
5550 the string "DEFAULT:eNULL".
5553 *) Fix to RSA private encryption routines: if p < q then it would
5554 occasionally produce an invalid result. This will only happen with
5555 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
5558 *) Be less restrictive and allow also `perl util/perlpath.pl
5559 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
5560 because this way one can also use an interpreter named `perl5' (which is
5561 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
5562 installed as `perl').
5563 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5565 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
5566 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5568 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
5569 advapi32.lib to Win32 build and change the pem test comparision
5570 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
5571 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
5572 and crypto/des/ede_cbcm_enc.c.
5575 *) DES quad checksum was broken on big-endian architectures. Fixed.
5578 *) Comment out two functions in bio.h that aren't implemented. Fix up the
5579 Win32 test batch file so it (might) work again. The Win32 test batch file
5580 is horrible: I feel ill....
5583 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
5584 in e_os.h. Audit of header files to check ANSI and non ANSI
5585 sections: 10 functions were absent from non ANSI section and not exported
5586 from Windows DLLs. Fixed up libeay.num for new functions.
5589 *) Make `openssl version' output lines consistent.
5590 [Ralf S. Engelschall]
5592 *) Fix Win32 symbol export lists for BIO functions: Added
5593 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
5594 to ms/libeay{16,32}.def.
5595 [Ralf S. Engelschall]
5597 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
5598 fine under Unix and passes some trivial tests I've now added. But the
5599 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
5600 added to make sure no one expects that this stuff really works in the
5601 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
5602 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
5604 [Ralf S. Engelschall]
5606 *) Fix the generation of two part addresses in perl.
5607 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
5609 *) Add config entry for Linux on MIPS.
5610 [John Tobey <jtobey@channel1.com>]
5612 *) Make links whenever Configure is run, unless we are on Windoze.
5615 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
5616 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
5620 *) Add a useful kludge to allow package maintainers to specify compiler and
5621 other platforms details on the command line without having to patch the
5622 Configure script everytime: One now can use ``perl Configure
5623 <id>:<details>'', i.e. platform ids are allowed to have details appended
5624 to them (seperated by colons). This is treated as there would be a static
5625 pre-configured entry in Configure's %table under key <id> with value
5626 <details> and ``perl Configure <id>'' is called. So, when you want to
5627 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
5628 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
5629 now, which overrides the FreeBSD-elf entry on-the-fly.
5630 [Ralf S. Engelschall]
5632 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
5635 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
5636 on the `perl Configure ...' command line. This way one can compile
5637 OpenSSL libraries with Position Independent Code (PIC) which is needed
5638 for linking it into DSOs.
5639 [Ralf S. Engelschall]
5641 *) Remarkably, export ciphers were totally broken and no-one had noticed!
5645 *) Cleaned up the LICENSE document: The official contact for any license
5646 questions now is the OpenSSL core team under openssl-core@openssl.org.
5647 And add a paragraph about the dual-license situation to make sure people
5648 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
5649 to the OpenSSL toolkit.
5650 [Ralf S. Engelschall]
5652 *) General source tree makefile cleanups: Made `making xxx in yyy...'
5653 display consistent in the source tree and replaced `/bin/rm' by `rm'.
5654 Additonally cleaned up the `make links' target: Remove unnecessary
5655 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
5656 to speed processing and no longer clutter the display with confusing
5657 stuff. Instead only the actually done links are displayed.
5658 [Ralf S. Engelschall]
5660 *) Permit null encryption ciphersuites, used for authentication only. It used
5661 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
5662 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
5666 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
5667 signed attributes when verifying signatures (this would break them),
5668 the detached data encoding was wrong and public keys obtained using
5669 X509_get_pubkey() weren't freed.
5672 *) Add text documentation for the BUFFER functions. Also added a work around
5673 to a Win95 console bug. This was triggered by the password read stuff: the
5674 last character typed gets carried over to the next fread(). If you were
5675 generating a new cert request using 'req' for example then the last
5676 character of the passphrase would be CR which would then enter the first
5680 *) Added the new `Includes OpenSSL Cryptography Software' button as
5681 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
5682 button and can be used by applications based on OpenSSL to show the
5683 relationship to the OpenSSL project.
5684 [Ralf S. Engelschall]
5686 *) Remove confusing variables in function signatures in files
5687 ssl/ssl_lib.c and ssl/ssl.h.
5688 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5690 *) Don't install bss_file.c under PREFIX/include/
5691 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5693 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
5694 functions that return function pointers and has support for NT specific
5695 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
5696 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
5697 unsigned to signed types: this was killing the Win32 compile.
5700 *) Add new certificate file to stack functions,
5701 SSL_add_dir_cert_subjects_to_stack() and
5702 SSL_add_file_cert_subjects_to_stack(). These largely supplant
5703 SSL_load_client_CA_file(), and can be used to add multiple certs easily
5704 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
5705 This means that Apache-SSL and similar packages don't have to mess around
5706 to add as many CAs as they want to the preferred list.
5709 *) Experiment with doxygen documentation. Currently only partially applied to
5711 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
5712 openssl.doxy as the configuration file.
5715 *) Get rid of remaining C++-style comments which strict C compilers hate.
5716 [Ralf S. Engelschall, pointed out by Carlos Amengual]
5718 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
5719 compiled in by default: it has problems with large keys.
5722 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
5723 DH private keys and/or callback functions which directly correspond to
5724 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
5725 is needed for applications which have to configure certificates on a
5726 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
5728 For the RSA certificate situation is makes no difference, but
5729 for the DSA certificate situation this fixes the "no shared cipher"
5730 problem where the OpenSSL cipher selection procedure failed because the
5731 temporary keys were not overtaken from the context and the API provided
5732 no way to reconfigure them.
5733 The new functions now let applications reconfigure the stuff and they
5734 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
5735 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
5736 non-public-API function ssl_cert_instantiate() is used as a helper
5737 function and also to reduce code redundancy inside ssl_rsa.c.
5738 [Ralf S. Engelschall]
5740 *) Move s_server -dcert and -dkey options out of the undocumented feature
5741 area because they are useful for the DSA situation and should be
5742 recognized by the users.
5743 [Ralf S. Engelschall]
5745 *) Fix the cipher decision scheme for export ciphers: the export bits are
5746 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
5747 SSL_EXP_MASK. So, the original variable has to be used instead of the
5748 already masked variable.
5749 [Richard Levitte <levitte@stacken.kth.se>]
5751 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
5752 [Richard Levitte <levitte@stacken.kth.se>]
5754 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
5755 from `int' to `unsigned int' because it's a length and initialized by
5756 EVP_DigestFinal() which expects an `unsigned int *'.
5757 [Richard Levitte <levitte@stacken.kth.se>]
5759 *) Don't hard-code path to Perl interpreter on shebang line of Configure
5760 script. Instead use the usual Shell->Perl transition trick.
5761 [Ralf S. Engelschall]
5763 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
5764 (in addition to RSA certificates) to match the behaviour of `openssl dsa
5765 -noout -modulus' as it's already the case for `openssl rsa -noout
5766 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
5767 currently the public key is printed (a decision which was already done by
5768 `openssl dsa -modulus' in the past) which serves a similar purpose.
5769 Additionally the NO_RSA no longer completely removes the whole -modulus
5770 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
5772 [Ralf S. Engelschall]
5774 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
5775 BIO. See the source (crypto/evp/bio_ok.c) for more info.
5776 [Arne Ansper <arne@ats.cyber.ee>]
5778 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
5779 to be added. Now both 'req' and 'ca' can use new objects defined in the
5783 *) Add cool BIO that does syslog (or event log on NT).
5784 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
5786 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
5787 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
5788 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
5789 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
5792 *) Add preliminary config info for new extension code.
5795 *) Make RSA_NO_PADDING really use no padding.
5796 [Ulf Moeller <ulf@fitug.de>]
5798 *) Generate errors when private/public key check is done.
5801 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
5802 for some CRL extensions and new objects added.
5805 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
5806 key usage extension and fuller support for authority key id.
5809 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
5810 padding method for RSA, which is recommended for new applications in PKCS
5811 #1 v2.0 (RFC 2437, October 1998).
5812 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
5813 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
5814 against Bleichbacher's attack on RSA.
5815 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
5818 *) Updates to the new SSL compression code
5819 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5821 *) Fix so that the version number in the master secret, when passed
5822 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
5823 (because the server will not accept higher), that the version number
5824 is 0x03,0x01, not 0x03,0x00
5825 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5827 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
5828 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
5829 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
5832 *) Support for RAW extensions where an arbitrary extension can be
5833 created by including its DER encoding. See apps/openssl.cnf for
5837 *) Make sure latest Perl versions don't interpret some generated C array
5838 code as Perl array code in the crypto/err/err_genc.pl script.
5839 [Lars Weber <3weber@informatik.uni-hamburg.de>]
5841 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
5842 not many people have the assembler. Various Win32 compilation fixes and
5843 update to the INSTALL.W32 file with (hopefully) more accurate Win32
5847 *) Modify configure script 'Configure' to automatically create crypto/date.h
5848 file under Win32 and also build pem.h from pem.org. New script
5849 util/mkfiles.pl to create the MINFO file on environments that can't do a
5850 'make files': perl util/mkfiles.pl >MINFO should work.
5853 *) Major rework of DES function declarations, in the pursuit of correctness
5854 and purity. As a result, many evil casts evaporated, and some weirdness,
5855 too. You may find this causes warnings in your code. Zapping your evil
5856 casts will probably fix them. Mostly.
5859 *) Fix for a typo in asn1.h. Bug fix to object creation script
5860 obj_dat.pl. It considered a zero in an object definition to mean
5861 "end of object": none of the objects in objects.h have any zeros
5862 so it wasn't spotted.
5863 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
5865 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
5866 Masking (CBCM). In the absence of test vectors, the best I have been able
5867 to do is check that the decrypt undoes the encrypt, so far. Send me test
5868 vectors if you have them.
5871 *) Correct calculation of key length for export ciphers (too much space was
5872 allocated for null ciphers). This has not been tested!
5875 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
5876 message is now correct (it understands "crypto" and "ssl" on its
5877 command line). There is also now an "update" option. This will update
5878 the util/ssleay.num and util/libeay.num files with any new functions.
5880 perl util/mkdef.pl crypto ssl update
5881 it will update them.
5884 *) Overhauled the Perl interface (perl/*):
5885 - ported BN stuff to OpenSSL's different BN library
5886 - made the perl/ source tree CVS-aware
5887 - renamed the package from SSLeay to OpenSSL (the files still contain
5888 their history because I've copied them in the repository)
5889 - removed obsolete files (the test scripts will be replaced
5890 by better Test::Harness variants in the future)
5891 [Ralf S. Engelschall]
5893 *) First cut for a very conservative source tree cleanup:
5894 1. merge various obsolete readme texts into doc/ssleay.txt
5895 where we collect the old documents and readme texts.
5896 2. remove the first part of files where I'm already sure that we no
5897 longer need them because of three reasons: either they are just temporary
5898 files which were left by Eric or they are preserved original files where
5899 I've verified that the diff is also available in the CVS via "cvs diff
5900 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
5901 the crypto/md/ stuff).
5902 [Ralf S. Engelschall]
5904 *) More extension code. Incomplete support for subject and issuer alt
5905 name, issuer and authority key id. Change the i2v function parameters
5906 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
5907 what that's for :-) Fix to ASN1 macro which messed up
5908 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
5911 *) Preliminary support for ENUMERATED type. This is largely copied from the
5915 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
5916 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5918 *) Make sure `make rehash' target really finds the `openssl' program.
5919 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5921 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
5922 like to hear about it if this slows down other processors.
5925 *) Add CygWin32 platform information to Configure script.
5926 [Alan Batie <batie@aahz.jf.intel.com>]
5928 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
5929 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
5931 *) New program nseq to manipulate netscape certificate sequences
5934 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
5938 *) Fixes to BN code. Previously the default was to define BN_RECURSION
5939 but the BN code had some problems that would cause failures when
5940 doing certificate verification and some other functions.
5941 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
5943 *) Add ASN1 and PEM code to support netscape certificate sequences.
5946 *) Add ASN1 and PEM code to support netscape certificate sequences.
5949 *) Add several PKIX and private extended key usage OIDs.
5952 *) Modify the 'ca' program to handle the new extension code. Modify
5953 openssl.cnf for new extension format, add comments.
5956 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
5957 and add a sample to openssl.cnf so req -x509 now adds appropriate
5961 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
5962 error code, add initial support to X509_print() and x509 application.
5965 *) Takes a deep breath and start addding X509 V3 extension support code. Add
5966 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
5967 stuff is currently isolated and isn't even compiled yet.
5970 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
5971 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
5972 Removed the versions check from X509 routines when loading extensions:
5973 this allows certain broken certificates that don't set the version
5974 properly to be processed.
5977 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
5978 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
5979 can still be regenerated with "make depend".
5982 *) Spelling mistake in C version of CAST-128.
5983 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
5985 *) Changes to the error generation code. The perl script err-code.pl
5986 now reads in the old error codes and retains the old numbers, only
5987 adding new ones if necessary. It also only changes the .err files if new
5988 codes are added. The makefiles have been modified to only insert errors
5989 when needed (to avoid needlessly modifying header files). This is done
5990 by only inserting errors if the .err file is newer than the auto generated
5991 C file. To rebuild all the error codes from scratch (the old behaviour)
5992 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
5993 or delete all the .err files.
5996 *) CAST-128 was incorrectly implemented for short keys. The C version has
5997 been fixed, but is untested. The assembler versions are also fixed, but
5998 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
5999 to regenerate it if needed.
6000 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6001 Hagino <itojun@kame.net>]
6003 *) File was opened incorrectly in randfile.c.
6004 [Ulf Möller <ulf@fitug.de>]
6006 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6007 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6008 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6009 al: it's just almost always a UTCTime. Note this patch adds new error
6010 codes so do a "make errors" if there are problems.
6013 *) Correct Linux 1 recognition in config.
6014 [Ulf Möller <ulf@fitug.de>]
6016 *) Remove pointless MD5 hash when using DSA keys in ca.
6017 [Anonymous <nobody@replay.com>]
6019 *) Generate an error if given an empty string as a cert directory. Also
6020 generate an error if handed NULL (previously returned 0 to indicate an
6021 error, but didn't set one).
6022 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6024 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6027 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6028 parameters. This was causing a warning which killed off the Win32 compile.
6031 *) Remove C++ style comments from crypto/bn/bn_local.h.
6032 [Neil Costigan <neil.costigan@celocom.com>]
6034 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6035 based on a text string, looking up short and long names and finally
6036 "dot" format. The "dot" format stuff didn't work. Added new function
6037 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6038 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6039 OID is not part of the table.
6042 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6043 X509_LOOKUP_by_alias().
6046 *) Sort openssl functions by name.
6049 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6050 encryption from sample DSA keys (in case anyone is interested the password
6054 *) Make _all_ *_free functions accept a NULL pointer.
6055 [Frans Heymans <fheymans@isaserver.be>]
6057 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6059 [Anonymous <nobody@replay.com>]
6061 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6062 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6064 *) Don't blow it for numeric -newkey arguments to apps/req.
6065 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6067 *) Temp key "for export" tests were wrong in s3_srvr.c.
6068 [Anonymous <nobody@replay.com>]
6070 *) Add prototype for temp key callback functions
6071 SSL_CTX_set_tmp_{rsa,dh}_callback().
6074 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6075 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6078 *) X509_name_add_entry() freed the wrong thing after an error.
6079 [Arne Ansper <arne@ats.cyber.ee>]
6081 *) rsa_eay.c would attempt to free a NULL context.
6082 [Arne Ansper <arne@ats.cyber.ee>]
6084 *) BIO_s_socket() had a broken should_retry() on Windoze.
6085 [Arne Ansper <arne@ats.cyber.ee>]
6087 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
6088 [Arne Ansper <arne@ats.cyber.ee>]
6090 *) Make sure the already existing X509_STORE->depth variable is initialized
6091 in X509_STORE_new(), but document the fact that this variable is still
6092 unused in the certificate verification process.
6093 [Ralf S. Engelschall]
6095 *) Fix the various library and apps files to free up pkeys obtained from
6096 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6099 *) Fix reference counting in X509_PUBKEY_get(). This makes
6100 demos/maurice/example2.c work, amongst others, probably.
6101 [Steve Henson and Ben Laurie]
6103 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
6104 `openssl' and second, the shortcut symlinks for the `openssl <command>'
6105 are no longer created. This way we have a single and consistent command
6106 line interface `openssl <command>', similar to `cvs <command>'.
6107 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6109 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
6110 BIT STRING wrapper always have zero unused bits.
6113 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
6116 *) Make the top-level INSTALL documentation easier to understand.
6119 *) Makefiles updated to exit if an error occurs in a sub-directory
6120 make (including if user presses ^C) [Paul Sutton]
6122 *) Make Montgomery context stuff explicit in RSA data structure.
6125 *) Fix build order of pem and err to allow for generated pem.h.
6128 *) Fix renumbering bug in X509_NAME_delete_entry().
6131 *) Enhanced the err-ins.pl script so it makes the error library number
6132 global and can add a library name. This is needed for external ASN1 and
6133 other error libraries.
6136 *) Fixed sk_insert which never worked properly.
6139 *) Fix ASN1 macros so they can handle indefinite length construted
6140 EXPLICIT tags. Some non standard certificates use these: they can now
6144 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
6145 into a single doc/ssleay.txt bundle. This way the information is still
6146 preserved but no longer messes up this directory. Now it's new room for
6147 the new set of documenation files.
6148 [Ralf S. Engelschall]
6150 *) SETs were incorrectly DER encoded. This was a major pain, because they
6151 shared code with SEQUENCEs, which aren't coded the same. This means that
6152 almost everything to do with SETs or SEQUENCEs has either changed name or
6153 number of arguments.
6154 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
6156 *) Fix test data to work with the above.
6159 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
6160 was already fixed by Eric for 0.9.1 it seems.
6161 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
6163 *) Autodetect FreeBSD3.
6166 *) Fix various bugs in Configure. This affects the following platforms:
6170 unixware-2.0-pentium
6174 *) Eliminate generated files from CVS. Reorder tests to regenerate files
6175 before they are needed.
6178 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
6182 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
6184 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
6185 changed SSLeay to OpenSSL in version strings.
6186 [Ralf S. Engelschall]
6188 *) Some fixups to the top-level documents.
6191 *) Fixed the nasty bug where rsaref.h was not found under compile-time
6192 because the symlink to include/ was missing.
6193 [Ralf S. Engelschall]
6195 *) Incorporated the popular no-RSA/DSA-only patches
6196 which allow to compile a RSA-free SSLeay.
6197 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
6199 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
6200 when "ssleay" is still not found.
6201 [Ralf S. Engelschall]
6203 *) Added more platforms to Configure: Cray T3E, HPUX 11,
6204 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
6206 *) Updated the README file.
6207 [Ralf S. Engelschall]
6209 *) Added various .cvsignore files in the CVS repository subdirs
6210 to make a "cvs update" really silent.
6211 [Ralf S. Engelschall]
6213 *) Recompiled the error-definition header files and added
6214 missing symbols to the Win32 linker tables.
6215 [Ralf S. Engelschall]
6217 *) Cleaned up the top-level documents;
6218 o new files: CHANGES and LICENSE
6219 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
6220 o merged COPYRIGHT into LICENSE
6221 o removed obsolete TODO file
6222 o renamed MICROSOFT to INSTALL.W32
6223 [Ralf S. Engelschall]
6225 *) Removed dummy files from the 0.9.1b source tree:
6226 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
6227 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
6228 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
6229 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
6230 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
6231 [Ralf S. Engelschall]
6233 *) Added various platform portability fixes.
6236 *) The Genesis of the OpenSSL rpject:
6237 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
6238 Young and Tim J. Hudson created while they were working for C2Net until
6240 [The OpenSSL Project]
6243 Changes between 0.9.0b and 0.9.1b [not released]
6245 *) Updated a few CA certificates under certs/
6248 *) Changed some BIGNUM api stuff.
6251 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
6252 DGUX x86, Linux Alpha, etc.
6255 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
6256 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
6260 *) Add -strparse option to asn1pars program which parses nested
6262 [Dr Stephen Henson <shenson@bigfoot.com>]
6264 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
6267 *) DSA fix for "ca" program.
6270 *) Added "-genkey" option to "dsaparam" program.
6273 *) Added RIPE MD160 (rmd160) message digest.
6276 *) Added -a (all) option to "ssleay version" command.
6279 *) Added PLATFORM define which is the id given to Configure.
6282 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
6285 *) Extended the ASN.1 parser routines.
6288 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
6291 *) Added a BN_CTX to the BN library.
6294 *) Fixed the weak key values in DES library
6297 *) Changed API in EVP library for cipher aliases.
6300 *) Added support for RC2/64bit cipher.
6303 *) Converted the lhash library to the crypto/mem.c functions.
6306 *) Added more recognized ASN.1 object ids.
6309 *) Added more RSA padding checks for SSL/TLS.
6312 *) Added BIO proxy/filter functionality.
6315 *) Added extra_certs to SSL_CTX which can be used
6316 send extra CA certificates to the client in the CA cert chain sending
6317 process. It can be configured with SSL_CTX_add_extra_chain_cert().
6320 *) Now Fortezza is denied in the authentication phase because
6321 this is key exchange mechanism is not supported by SSLeay at all.
6324 *) Additional PKCS1 checks.
6327 *) Support the string "TLSv1" for all TLS v1 ciphers.
6330 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
6331 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
6334 *) Fixed a few memory leaks.
6337 *) Fixed various code and comment typos.
6340 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
6341 bytes sent in the client random.
6342 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob