5 Changes between 0.9.7e and 0.9.7f [XX xxx XXXX]
7 *) Fix hang in EGD/PRNGD query when communication socket is closed
8 prematurely by EGD/PRNGD.
9 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
11 *) Prompt for pass phrases when appropriate for PKCS12 input format.
14 *) Back-port of selected performance improvements from development
15 branch, as well as improved support for PowerPC platforms.
18 *) Add lots of checks for memory allocation failure, error codes to indicate
19 failure and freeing up memory if a failure occurs.
20 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
22 *) Add new -passin argument to dgst.
25 *) Perform some character comparisons of different types in X509_NAME_cmp:
26 this is needed for some certificates that reencode DNs into UTF8Strings
27 (in violation of RFC3280) and can't or wont issue name rollover
31 *) Make an explicit check during certificate validation to see that
32 the CA setting in each certificate on the chain is correct. As a
33 side effect always do the following basic checks on extensions,
34 not just when there's an associated purpose to the check:
36 - if there is an unhandled critical extension (unless the user
37 has chosen to ignore this fault)
38 - if the path length has been exceeded (if one is set at all)
39 - that certain extensions fit the associated purpose (if one has
43 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
45 *) Avoid a race condition when CRLs are checked in a multi threaded
46 environment. This would happen due to the reordering of the revoked
47 entries during signature checking and serial number lookup. Now the
48 encoding is cached and the serial number sort performed under a lock.
49 Add new STACK function sk_is_sorted().
52 *) Add Delta CRL to the extension code.
55 *) Various fixes to s3_pkt.c so alerts are sent properly.
56 [David Holmes <d.holmes@f5.com>]
58 *) Reduce the chances of duplicate issuer name and serial numbers (in
59 violation of RFC3280) using the OpenSSL certificate creation utilities.
60 This is done by creating a random 64 bit value for the initial serial
61 number when a serial number file is created or when a self signed
62 certificate is created using 'openssl req -x509'. The initial serial
63 number file is created using 'openssl x509 -next_serial' in CA.pl
64 rather than being initialized to 1.
67 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
69 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
70 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
71 [Joe Orton, Steve Henson]
73 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
75 [Joe Orton, Steve Henson]
77 *) Make it possible to have multiple active certificates with the same
78 subject in the CA index file. This is done only if the keyword
79 'unique_subject' is set to 'no' in the main CA section (default
80 if 'CA_default') of the configuration file. The value is saved
81 with the database itself in a separate index attribute file,
82 named like the index file with '.attr' appended to the name.
85 *) X509 verify fixes. Disable broken certificate workarounds when
86 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
87 keyUsage extension present. Don't accept CRLs with unhandled critical
88 extensions: since verify currently doesn't process CRL extensions this
89 rejects a CRL with *any* critical extensions. Add new verify error codes
93 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
94 A clarification of RFC2560 will require the use of OCTET STRINGs and
95 some implementations cannot handle the current raw format. Since OpenSSL
96 copies and compares OCSP nonces as opaque blobs without any attempt at
97 parsing them this should not create any compatibility issues.
100 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
101 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
102 this HMAC (and other) operations are several times slower than OpenSSL
106 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
107 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
109 *) Use the correct content when signing type "other".
112 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
114 *) Fix various bugs revealed by running the NISCC test suite:
116 Stop out of bounds reads in the ASN1 code when presented with
117 invalid tags (CAN-2003-0543 and CAN-2003-0544).
119 Free up ASN1_TYPE correctly if ANY type is invalid (CAN-2003-0545).
121 If verify callback ignores invalid public key errors don't try to check
122 certificate signature with the NULL public key.
126 *) New -ignore_err option in ocsp application to stop the server
127 exiting on the first error in a request.
130 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
131 if the server requested one: as stated in TLS 1.0 and SSL 3.0
135 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
136 extra data after the compression methods not only for TLS 1.0
137 but also for SSL 3.0 (as required by the specification).
138 [Bodo Moeller; problem pointed out by Matthias Loepfe]
140 *) Change X509_certificate_type() to mark the key as exported/exportable
141 when it's 512 *bits* long, not 512 bytes.
144 *) Change AES_cbc_encrypt() so it outputs exact multiple of
145 blocks during encryption.
148 *) Various fixes to base64 BIO and non blocking I/O. On write
149 flushes were not handled properly if the BIO retried. On read
150 data was not being buffered properly and had various logic bugs.
151 This also affects blocking I/O when the data being decoded is a
155 *) Various S/MIME bugfixes and compatibility changes:
156 output correct application/pkcs7 MIME type if
157 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
158 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
159 of files as .eml work). Correctly handle very long lines in MIME
163 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
165 *) Countermeasure against the Klima-Pokorny-Rosa extension of
166 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
167 a protocol version number mismatch like a decryption error
168 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
171 *) Turn on RSA blinding by default in the default implementation
172 to avoid a timing attack. Applications that don't want it can call
173 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
174 They would be ill-advised to do so in most cases.
175 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
177 *) Change RSA blinding code so that it works when the PRNG is not
178 seeded (in this case, the secret RSA exponent is abused as
179 an unpredictable seed -- if it is not unpredictable, there
180 is no point in blinding anyway). Make RSA blinding thread-safe
181 by remembering the creator's thread ID in rsa->blinding and
182 having all other threads use local one-time blinding factors
183 (this requires more computation than sharing rsa->blinding, but
184 avoids excessive locking; and if an RSA object is not shared
185 between threads, blinding will still be very fast).
188 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
189 ENGINE as defaults for all supported algorithms irrespective of
190 the 'flags' parameter. 'flags' is now honoured, so applications
191 should make sure they are passing it correctly.
194 *) Target "mingw" now allows native Windows code to be generated in
195 the Cygwin environment as well as with the MinGW compiler.
198 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
200 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
201 via timing by performing a MAC computation even if incorrrect
202 block cipher padding has been found. This is a countermeasure
203 against active attacks where the attacker has to distinguish
204 between bad padding and a MAC verification error. (CAN-2003-0078)
206 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
207 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
208 Martin Vuagnoux (EPFL, Ilion)]
210 *) Make the no-err option work as intended. The intention with no-err
211 is not to have the whole error stack handling routines removed from
212 libcrypto, it's only intended to remove all the function name and
213 reason texts, thereby removing some of the footprint that may not
214 be interesting if those errors aren't displayed anyway.
216 NOTE: it's still possible for any application or module to have it's
217 own set of error texts inserted. The routines are there, just not
218 used by default when no-err is given.
221 *) Add support for FreeBSD on IA64.
222 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
224 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
225 Kerberos function mit_des_cbc_cksum(). Before this change,
226 the value returned by DES_cbc_cksum() was like the one from
227 mit_des_cbc_cksum(), except the bytes were swapped.
228 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
230 *) Allow an application to disable the automatic SSL chain building.
231 Before this a rather primitive chain build was always performed in
232 ssl3_output_cert_chain(): an application had no way to send the
233 correct chain if the automatic operation produced an incorrect result.
235 Now the chain builder is disabled if either:
237 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
239 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
241 The reasoning behind this is that an application would not want the
242 auto chain building to take place if extra chain certificates are
243 present and it might also want a means of sending no additional
244 certificates (for example the chain has two certificates and the
248 *) Add the possibility to build without the ENGINE framework.
249 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
251 *) Under Win32 gmtime() can return NULL: check return value in
252 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
255 *) DSA routines: under certain error conditions uninitialized BN objects
256 could be freed. Solution: make sure initialization is performed early
257 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
258 Nils Larsch <nla@trustcenter.de> via PR#459)
261 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
262 checked on reconnect on the client side, therefore session resumption
263 could still fail with a "ssl session id is different" error. This
264 behaviour is masked when SSL_OP_ALL is used due to
265 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
266 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
270 *) IA-32 assembler support enhancements: unified ELF targets, support
271 for SCO/Caldera platforms, fix for Cygwin shared build.
274 *) Add support for FreeBSD on sparc64. As a consequence, support for
275 FreeBSD on non-x86 processors is separate from x86 processors on
276 the config script, much like the NetBSD support.
277 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
279 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
281 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
284 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
285 code (06) was taken as the first octet of the session ID and the last
286 octet was ignored consequently. As a result SSLv2 client side session
287 caching could not have worked due to the session ID mismatch between
289 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
293 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
294 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
298 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
299 seems that in spite of existing for more than a year, many application
300 author have done nothing to provide the necessary callbacks, which
301 means that this particular engine will not work properly anywhere.
302 This is a very unfortunate situation which forces us, in the name
303 of usability, to give the hw_ncipher.c a static lock, which is part
305 NOTE: This is for the 0.9.7 series ONLY. This hack will never
306 appear in 0.9.8 or later. We EXPECT application authors to have
307 dealt properly with this when 0.9.8 is released (unless we actually
308 make such changes in the libcrypto locking code that changes will
309 have to be made anyway).
312 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
313 octets have been read, EOF or an error occurs. Without this change
314 some truncated ASN1 structures will not produce an error.
317 *) Disable Heimdal support, since it hasn't been fully implemented.
318 Still give the possibility to force the use of Heimdal, but with
319 warnings and a request that patches get sent to openssl-dev.
322 *) Add the VC-CE target, introduce the WINCE sysname, and add
323 INSTALL.WCE and appropriate conditionals to make it build.
324 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
326 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
327 cygssl-x.y.z.dll, where x, y and z are the major, minor and
328 edit numbers of the version.
329 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
331 *) Introduce safe string copy and catenation functions
332 (BUF_strlcpy() and BUF_strlcat()).
333 [Ben Laurie (CHATS) and Richard Levitte]
335 *) Avoid using fixed-size buffers for one-line DNs.
338 *) Add BUF_MEM_grow_clean() to avoid information leakage when
339 resizing buffers containing secrets, and use where appropriate.
342 *) Avoid using fixed size buffers for configuration file location.
345 *) Avoid filename truncation for various CA files.
348 *) Use sizeof in preference to magic numbers.
351 *) Avoid filename truncation in cert requests.
354 *) Add assertions to check for (supposedly impossible) buffer
358 *) Don't cache truncated DNS entries in the local cache (this could
359 potentially lead to a spoofing attack).
362 *) Fix various buffers to be large enough for hex/decimal
363 representations in a platform independent manner.
366 *) Add CRYPTO_realloc_clean() to avoid information leakage when
367 resizing buffers containing secrets, and use where appropriate.
370 *) Add BIO_indent() to avoid much slightly worrying code to do
374 *) Convert sprintf()/BIO_puts() to BIO_printf().
377 *) buffer_gets() could terminate with the buffer only half
381 *) Add assertions to prevent user-supplied crypto functions from
382 overflowing internal buffers by having large block sizes, etc.
385 *) New OPENSSL_assert() macro (similar to assert(), but enabled
389 *) Eliminate unused copy of key in RC4.
392 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
395 *) Fix off-by-one error in EGD path.
398 *) If RANDFILE path is too long, ignore instead of truncating.
401 *) Eliminate unused and incorrectly sized X.509 structure
405 *) Eliminate unused and dangerous function knumber().
408 *) Eliminate unused and dangerous structure, KSSL_ERR.
411 *) Protect against overlong session ID context length in an encoded
412 session object. Since these are local, this does not appear to be
416 *) Change from security patch (see 0.9.6e below) that did not affect
417 the 0.9.6 release series:
419 Remote buffer overflow in SSL3 protocol - an attacker could
420 supply an oversized master key in Kerberos-enabled versions.
424 *) Change the SSL kerb5 codes to match RFC 2712.
427 *) Make -nameopt work fully for req and add -reqopt switch.
428 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
430 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
431 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
433 *) Make sure tests can be performed even if the corresponding algorithms
434 have been removed entirely. This was also the last step to make
435 OpenSSL compilable with DJGPP under all reasonable conditions.
436 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
438 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
439 to allow version independent disabling of normally unselected ciphers,
440 which may be activated as a side-effect of selecting a single cipher.
442 (E.g., cipher list string "RSA" enables ciphersuites that are left
443 out of "ALL" because they do not provide symmetric encryption.
444 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
445 [Lutz Jaenicke, Bodo Moeller]
447 *) Add appropriate support for separate platform-dependent build
448 directories. The recommended way to make a platform-dependent
449 build directory is the following (tested on Linux), maybe with
452 # Place yourself outside of the OpenSSL source tree. In
453 # this example, the environment variable OPENSSL_SOURCE
454 # is assumed to contain the absolute OpenSSL source directory.
455 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
456 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
457 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
458 mkdir -p `dirname $F`
459 ln -s $OPENSSL_SOURCE/$F $F
462 To be absolutely sure not to disturb the source tree, a "make clean"
463 is a good thing. If it isn't successfull, don't worry about it,
464 it probably means the source directory is very clean.
467 *) Make sure any ENGINE control commands make local copies of string
468 pointers passed to them whenever necessary. Otherwise it is possible
469 the caller may have overwritten (or deallocated) the original string
470 data when a later ENGINE operation tries to use the stored values.
471 [Götz Babin-Ebell <babinebell@trustcenter.de>]
473 *) Improve diagnostics in file reading and command-line digests.
474 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
476 *) Add AES modes CFB and OFB to the object database. Correct an
477 error in AES-CFB decryption.
480 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
481 allows existing EVP_CIPHER_CTX structures to be reused after
482 calling EVP_*Final(). This behaviour is used by encryption
483 BIOs and some applications. This has the side effect that
484 applications must explicitly clean up cipher contexts with
485 EVP_CIPHER_CTX_cleanup() or they will leak memory.
488 *) Check the values of dna and dnb in bn_mul_recursive before calling
489 bn_mul_comba (a non zero value means the a or b arrays do not contain
490 n2 elements) and fallback to bn_mul_normal if either is not zero.
493 *) Fix escaping of non-ASCII characters when using the -subj option
494 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
497 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
498 form for "surname", serialNumber has no short form.
499 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
500 therefore remove "mail" short name for "internet 7".
501 The OID for unique identifiers in X509 certificates is
502 x500UniqueIdentifier, not uniqueIdentifier.
503 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
506 *) Add an "init" command to the ENGINE config module and auto initialize
507 ENGINEs. Without any "init" command the ENGINE will be initialized
508 after all ctrl commands have been executed on it. If init=1 the
509 ENGINE is initailized at that point (ctrls before that point are run
510 on the uninitialized ENGINE and after on the initialized one). If
511 init=0 then the ENGINE will not be iniatialized at all.
514 *) Fix the 'app_verify_callback' interface so that the user-defined
515 argument is actually passed to the callback: In the
516 SSL_CTX_set_cert_verify_callback() prototype, the callback
517 declaration has been changed from
520 int (*cb)(X509_STORE_CTX *,void *);
521 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
522 i=s->ctx->app_verify_callback(&ctx)
523 has been changed into
524 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
526 To update applications using SSL_CTX_set_cert_verify_callback(),
527 a dummy argument can be added to their callback functions.
528 [D. K. Smetters <smetters@parc.xerox.com>]
530 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
531 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
533 *) Add and OPENSSL_LOAD_CONF define which will cause
534 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
535 This allows older applications to transparently support certain
536 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
537 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
538 load the config file and OPENSSL_add_all_algorithms_conf() which will
539 always load it have also been added.
542 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
543 Adjust NIDs and EVP layer.
544 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
546 *) Config modules support in openssl utility.
548 Most commands now load modules from the config file,
549 though in a few (such as version) this isn't done
550 because it couldn't be used for anything.
552 In the case of ca and req the config file used is
553 the same as the utility itself: that is the -config
554 command line option can be used to specify an
558 *) Move default behaviour from OPENSSL_config(). If appname is NULL
559 use "openssl_conf" if filename is NULL use default openssl config file.
562 *) Add an argument to OPENSSL_config() to allow the use of an alternative
563 config section name. Add a new flag to tolerate a missing config file
564 and move code to CONF_modules_load_file().
567 *) Support for crypto accelerator cards from Accelerated Encryption
568 Processing, www.aep.ie. (Use engine 'aep')
569 The support was copied from 0.9.6c [engine] and adapted/corrected
570 to work with the new engine framework.
571 [AEP Inc. and Richard Levitte]
573 *) Support for SureWare crypto accelerator cards from Baltimore
574 Technologies. (Use engine 'sureware')
575 The support was copied from 0.9.6c [engine] and adapted
576 to work with the new engine framework.
579 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
580 make the newer ENGINE framework commands for the CHIL engine work.
581 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
583 *) Make it possible to produce shared libraries on ReliantUNIX.
584 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
586 *) Add the configuration target debug-linux-ppro.
587 Make 'openssl rsa' use the general key loading routines
588 implemented in apps.c, and make those routines able to
589 handle the key format FORMAT_NETSCAPE and the variant
591 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
593 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
594 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
596 *) Add -keyform to rsautl, and document -engine.
597 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
599 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
600 BIO_R_NO_SUCH_FILE error code rather than the generic
601 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
606 ERR_peek_last_error_line
607 ERR_peek_last_error_line_data.
611 ERR_peek_error_line_data,
612 but report on the latest error recorded rather than the first one
613 still in the error queue.
614 [Ben Laurie, Bodo Moeller]
616 *) default_algorithms option in ENGINE config module. This allows things
618 default_algorithms = ALL
619 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
622 *) Prelminary ENGINE config module.
625 *) New experimental application configuration code.
628 *) Change the AES code to follow the same name structure as all other
629 symmetric ciphers, and behave the same way. Move everything to
630 the directory crypto/aes, thereby obsoleting crypto/rijndael.
631 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
633 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
634 [Ben Laurie and Theo de Raadt]
636 *) Add option to output public keys in req command.
637 [Massimiliano Pala madwolf@openca.org]
639 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
640 (up to about 10% better than before for P-192 and P-224).
643 *) New functions/macros
645 SSL_CTX_set_msg_callback(ctx, cb)
646 SSL_CTX_set_msg_callback_arg(ctx, arg)
647 SSL_set_msg_callback(ssl, cb)
648 SSL_set_msg_callback_arg(ssl, arg)
650 to request calling a callback function
652 void cb(int write_p, int version, int content_type,
653 const void *buf, size_t len, SSL *ssl, void *arg)
655 whenever a protocol message has been completely received
656 (write_p == 0) or sent (write_p == 1). Here 'version' is the
657 protocol version according to which the SSL library interprets
658 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
659 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
660 the content type as defined in the SSL 3.0/TLS 1.0 protocol
661 specification (change_cipher_spec(20), alert(21), handshake(22)).
662 'buf' and 'len' point to the actual message, 'ssl' to the
663 SSL object, and 'arg' is the application-defined value set by
664 SSL[_CTX]_set_msg_callback_arg().
666 'openssl s_client' and 'openssl s_server' have new '-msg' options
667 to enable a callback that displays all protocol messages.
670 *) Change the shared library support so shared libraries are built as
671 soon as the corresponding static library is finished, and thereby get
672 openssl and the test programs linked against the shared library.
673 This still only happens when the keyword "shard" has been given to
674 the configuration scripts.
676 NOTE: shared library support is still an experimental thing, and
677 backward binary compatibility is still not guaranteed.
678 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
680 *) Add support for Subject Information Access extension.
681 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
683 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
684 additional bytes when new memory had to be allocated, not just
685 when reusing an existing buffer.
688 *) New command line and configuration option 'utf8' for the req command.
689 This allows field values to be specified as UTF8 strings.
692 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
693 runs for the former and machine-readable output for the latter.
696 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
697 of the e-mail address in the DN (i.e., it will go into a certificate
698 extension only). The new configuration file option 'email_in_dn = no'
700 [Massimiliano Pala madwolf@openca.org]
702 *) Change all functions with names starting with des_ to be starting
703 with DES_ instead. Add wrappers that are compatible with libdes,
704 but are named _ossl_old_des_*. Finally, add macros that map the
705 des_* symbols to the corresponding _ossl_old_des_* if libdes
706 compatibility is desired. If OpenSSL 0.9.6c compatibility is
707 desired, the des_* symbols will be mapped to DES_*, with one
710 Since we provide two compatibility mappings, the user needs to
711 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
712 compatibility is desired. The default (i.e., when that macro
713 isn't defined) is OpenSSL 0.9.6c compatibility.
715 There are also macros that enable and disable the support of old
716 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
717 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
718 are defined, the default will apply: to support the old des routines.
720 In either case, one must include openssl/des.h to get the correct
721 definitions. Do not try to just include openssl/des_old.h, that
724 NOTE: This is a major break of an old API into a new one. Software
725 authors are encouraged to switch to the DES_ style functions. Some
726 time in the future, des_old.h and the libdes compatibility functions
727 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
728 default), and then completely removed.
731 *) Test for certificates which contain unsupported critical extensions.
732 If such a certificate is found during a verify operation it is
733 rejected by default: this behaviour can be overridden by either
734 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
735 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
736 X509_supported_extension() has also been added which returns 1 if a
737 particular extension is supported.
740 *) Modify the behaviour of EVP cipher functions in similar way to digests
741 to retain compatibility with existing code.
744 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
745 compatibility with existing code. In particular the 'ctx' parameter does
746 not have to be to be initialized before the call to EVP_DigestInit() and
747 it is tidied up after a call to EVP_DigestFinal(). New function
748 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
749 EVP_MD_CTX_copy() changed to not require the destination to be
750 initialized valid and new function EVP_MD_CTX_copy_ex() added which
751 requires the destination to be valid.
753 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
754 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
757 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
758 so that complete 'Handshake' protocol structures are kept in memory
759 instead of overwriting 'msg_type' and 'length' with 'body' data.
762 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
763 [Massimo Santin via Richard Levitte]
765 *) Major restructuring to the underlying ENGINE code. This includes
766 reduction of linker bloat, separation of pure "ENGINE" manipulation
767 (initialisation, etc) from functionality dealing with implementations
768 of specific crypto iterfaces. This change also introduces integrated
769 support for symmetric ciphers and digest implementations - so ENGINEs
770 can now accelerate these by providing EVP_CIPHER and EVP_MD
771 implementations of their own. This is detailed in crypto/engine/README
772 as it couldn't be adequately described here. However, there are a few
773 API changes worth noting - some RSA, DSA, DH, and RAND functions that
774 were changed in the original introduction of ENGINE code have now
775 reverted back - the hooking from this code to ENGINE is now a good
776 deal more passive and at run-time, operations deal directly with
777 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
778 dereferencing through an ENGINE pointer any more. Also, the ENGINE
779 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
780 they were not being used by the framework as there is no concept of a
781 BIGNUM_METHOD and they could not be generalised to the new
782 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
783 ENGINE_cpy() has been removed as it cannot be consistently defined in
787 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
790 *) Change mkdef.pl to sort symbols that get the same entry number,
791 and make sure the automatically generated functions ERR_load_*
792 become part of libeay.num as well.
795 *) New function SSL_renegotiate_pending(). This returns true once
796 renegotiation has been requested (either SSL_renegotiate() call
797 or HelloRequest/ClientHello receveived from the peer) and becomes
798 false once a handshake has been completed.
799 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
800 sends a HelloRequest, but does not ensure that a handshake takes
801 place. SSL_renegotiate_pending() is useful for checking if the
802 client has followed the request.)
805 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
806 By default, clients may request session resumption even during
807 renegotiation (if session ID contexts permit); with this option,
808 session resumption is possible only in the first handshake.
810 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
811 more bits available for options that should not be part of
812 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
815 *) Add some demos for certificate and certificate request creation.
818 *) Make maximum certificate chain size accepted from the peer application
819 settable (SSL*_get/set_max_cert_list()), as proposed by
820 "Douglas E. Engert" <deengert@anl.gov>.
823 *) Add support for shared libraries for Unixware-7
824 (Boyd Lynn Gerber <gerberb@zenez.com>).
827 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
828 be done prior to destruction. Use this to unload error strings from
829 ENGINEs that load their own error strings. NB: This adds two new API
830 functions to "get" and "set" this destroy handler in an ENGINE.
833 *) Alter all existing ENGINE implementations (except "openssl" and
834 "openbsd") to dynamically instantiate their own error strings. This
835 makes them more flexible to be built both as statically-linked ENGINEs
836 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
837 Also, add stub code to each that makes building them as self-contained
838 shared-libraries easier (see README.ENGINE).
841 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
842 implementations into applications that are completely implemented in
843 self-contained shared-libraries. The "dynamic" ENGINE exposes control
844 commands that can be used to configure what shared-library to load and
845 to control aspects of the way it is handled. Also, made an update to
846 the README.ENGINE file that brings its information up-to-date and
847 provides some information and instructions on the "dynamic" ENGINE
848 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
851 *) Make it possible to unload ranges of ERR strings with a new
852 "ERR_unload_strings" function.
855 *) Add a copy() function to EVP_MD.
858 *) Make EVP_MD routines take a context pointer instead of just the
859 md_data void pointer.
862 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
863 that the digest can only process a single chunk of data
864 (typically because it is provided by a piece of
865 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
866 is only going to provide a single chunk of data, and hence the
867 framework needn't accumulate the data for oneshot drivers.
870 *) As with "ERR", make it possible to replace the underlying "ex_data"
871 functions. This change also alters the storage and management of global
872 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
873 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
874 index counters. The API functions that use this state have been changed
875 to take a "class_index" rather than pointers to the class's local STACK
876 and counter, and there is now an API function to dynamically create new
877 classes. This centralisation allows us to (a) plug a lot of the
878 thread-safety problems that existed, and (b) makes it possible to clean
879 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
880 such data would previously have always leaked in application code and
881 workarounds were in place to make the memory debugging turn a blind eye
882 to it. Application code that doesn't use this new function will still
883 leak as before, but their memory debugging output will announce it now
884 rather than letting it slide.
886 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
887 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
888 has a return value to indicate success or failure.
891 *) Make it possible to replace the underlying "ERR" functions such that the
892 global state (2 LHASH tables and 2 locks) is only used by the "default"
893 implementation. This change also adds two functions to "get" and "set"
894 the implementation prior to it being automatically set the first time
895 any other ERR function takes place. Ie. an application can call "get",
896 pass the return value to a module it has just loaded, and that module
897 can call its own "set" function using that value. This means the
898 module's "ERR" operations will use (and modify) the error state in the
899 application and not in its own statically linked copy of OpenSSL code.
902 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
903 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
904 the operation, and provides a more encapsulated way for external code
905 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
906 to use these functions rather than manually incrementing the counts.
908 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
911 *) Add EVP test program.
914 *) Add symmetric cipher support to ENGINE. Expect the API to change!
917 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
918 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
919 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
920 These allow a CRL to be built without having to access X509_CRL fields
921 directly. Modify 'ca' application to use new functions.
924 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
925 bug workarounds. Rollback attack detection is a security feature.
926 The problem will only arise on OpenSSL servers when TLSv1 is not
927 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
928 Software authors not wanting to support TLSv1 will have special reasons
929 for their choice and can explicitly enable this option.
930 [Bodo Moeller, Lutz Jaenicke]
932 *) Rationalise EVP so it can be extended: don't include a union of
933 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
934 (similar to those existing for EVP_CIPHER_CTX).
939 EVP_MD_CTX_init(&md); /* new function call */
940 EVP_DigestInit(&md, EVP_sha1());
941 EVP_DigestUpdate(&md, in, len);
942 EVP_DigestFinal(&md, out, NULL);
943 EVP_MD_CTX_cleanup(&md); /* new function call */
947 *) Make DES key schedule conform to the usual scheme, as well as
948 correcting its structure. This means that calls to DES functions
949 now have to pass a pointer to a des_key_schedule instead of a
950 plain des_key_schedule (which was actually always a pointer
955 des_set_key_checked(..., &ks);
956 des_ncbc_encrypt(..., &ks, ...);
958 (Note that a later change renames 'des_...' into 'DES_...'.)
961 *) Initial reduction of linker bloat: the use of some functions, such as
962 PEM causes large amounts of unused functions to be linked in due to
963 poor organisation. For example pem_all.c contains every PEM function
964 which has a knock on effect of linking in large amounts of (unused)
965 ASN1 code. Grouping together similar functions and splitting unrelated
966 functions prevents this.
969 *) Cleanup of EVP macros.
972 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
976 *) Add initial OCSP responder support to ocsp application. The
977 revocation information is handled using the text based index
978 use by the ca application. The responder can either handle
979 requests generated internally, supplied in files (for example
980 via a CGI script) or using an internal minimal server.
983 *) Add configuration choices to get zlib compression for TLS.
986 *) Changes to Kerberos SSL for RFC 2712 compliance:
987 1. Implemented real KerberosWrapper, instead of just using
988 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
989 2. Implemented optional authenticator field of KerberosWrapper.
991 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
992 and authenticator structs; see crypto/krb5/.
994 Generalized Kerberos calls to support multiple Kerberos libraries.
995 [Vern Staats <staatsvr@asc.hpc.mil>,
996 Jeffrey Altman <jaltman@columbia.edu>
999 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1000 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1001 values for each of the key sizes rather than having just
1002 parameters (and 'speed' generating keys each time).
1005 *) Speed up EVP routines.
1008 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1009 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1010 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1011 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1013 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1014 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1015 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1018 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1020 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1023 *) Added the OS2-EMX target.
1024 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1026 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1027 to support NCONF routines in extension code. New function CONF_set_nconf()
1028 to allow functions which take an NCONF to also handle the old LHASH
1029 structure: this means that the old CONF compatible routines can be
1030 retained (in particular wrt extensions) without having to duplicate the
1031 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1034 *) Enhance the general user interface with mechanisms for inner control
1035 and with possibilities to have yes/no kind of prompts.
1038 *) Change all calls to low level digest routines in the library and
1039 applications to use EVP. Add missing calls to HMAC_cleanup() and
1040 don't assume HMAC_CTX can be copied using memcpy().
1041 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1043 *) Add the possibility to control engines through control names but with
1044 arbitrary arguments instead of just a string.
1045 Change the key loaders to take a UI_METHOD instead of a callback
1046 function pointer. NOTE: this breaks binary compatibility with earlier
1047 versions of OpenSSL [engine].
1048 Adapt the nCipher code for these new conditions and add a card insertion
1052 *) Enhance the general user interface with mechanisms to better support
1053 dialog box interfaces, application-defined prompts, the possibility
1054 to use defaults (for example default passwords from somewhere else)
1055 and interrupts/cancellations.
1058 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1059 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1062 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1063 tidy up some unnecessarily weird code in 'sk_new()').
1064 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1066 *) Change the key loading routines for ENGINEs to use the same kind
1067 callback (pem_password_cb) as all other routines that need this
1071 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1072 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1073 than this minimum value is recommended.
1076 *) New random seeder for OpenVMS, using the system process statistics
1077 that are easily reachable.
1080 *) Windows apparently can't transparently handle global
1081 variables defined in DLLs. Initialisations such as:
1083 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1085 wont compile. This is used by the any applications that need to
1086 declare their own ASN1 modules. This was fixed by adding the option
1087 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1088 needed for static libraries under Win32.
1091 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1092 setting of purpose and trust fields. New X509_STORE trust and
1093 purpose functions and tidy up setting in other SSL functions.
1096 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1097 structure. These are inherited by X509_STORE_CTX when it is
1098 initialised. This allows various defaults to be set in the
1099 X509_STORE structure (such as flags for CRL checking and custom
1100 purpose or trust settings) for functions which only use X509_STORE_CTX
1101 internally such as S/MIME.
1103 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1104 trust settings if they are not set in X509_STORE. This allows X509_STORE
1105 purposes and trust (in S/MIME for example) to override any set by default.
1107 Add command line options for CRL checking to smime, s_client and s_server
1111 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1112 are set then the CRL is looked up in the X509_STORE structure and
1113 its validity and signature checked, then if the certificate is found
1114 in the CRL the verify fails with a revoked error.
1116 Various new CRL related callbacks added to X509_STORE_CTX structure.
1118 Command line options added to 'verify' application to support this.
1120 This needs some additional work, such as being able to handle multiple
1121 CRLs with different times, extension based lookup (rather than just
1122 by subject name) and ultimately more complete V2 CRL extension
1126 *) Add a general user interface API (crypto/ui/). This is designed
1127 to replace things like des_read_password and friends (backward
1128 compatibility functions using this new API are provided).
1129 The purpose is to remove prompting functions from the DES code
1130 section as well as provide for prompting through dialog boxes in
1131 a window system and the like.
1134 *) Add "ex_data" support to ENGINE so implementations can add state at a
1135 per-structure level rather than having to store it globally.
1138 *) Make it possible for ENGINE structures to be copied when retrieved by
1139 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1140 This causes the "original" ENGINE structure to act like a template,
1141 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1142 operational state can be localised to each ENGINE structure, despite the
1143 fact they all share the same "methods". New ENGINE structures returned in
1144 this case have no functional references and the return value is the single
1145 structural reference. This matches the single structural reference returned
1146 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1150 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1151 needs to match any other type at all we need to manually clear the
1155 *) Changes to the "openssl engine" utility to include;
1156 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1157 about an ENGINE's available control commands.
1158 - executing control commands from command line arguments using the
1159 '-pre' and '-post' switches. '-post' is only used if '-t' is
1160 specified and the ENGINE is successfully initialised. The syntax for
1161 the individual commands are colon-separated, for example;
1162 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1165 *) New dynamic control command support for ENGINEs. ENGINEs can now
1166 declare their own commands (numbers), names (strings), descriptions,
1167 and input types for run-time discovery by calling applications. A
1168 subset of these commands are implicitly classed as "executable"
1169 depending on their input type, and only these can be invoked through
1170 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1171 can be based on user input, config files, etc). The distinction is
1172 that "executable" commands cannot return anything other than a boolean
1173 result and can only support numeric or string input, whereas some
1174 discoverable commands may only be for direct use through
1175 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1176 pointers, or other custom uses. The "executable" commands are to
1177 support parameterisations of ENGINE behaviour that can be
1178 unambiguously defined by ENGINEs and used consistently across any
1179 OpenSSL-based application. Commands have been added to all the
1180 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1181 control over shared-library paths without source code alterations.
1184 *) Changed all ENGINE implementations to dynamically allocate their
1185 ENGINEs rather than declaring them statically. Apart from this being
1186 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1187 this also allows the implementations to compile without using the
1188 internal engine_int.h header.
1191 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1192 'const' value. Any code that should be able to modify a RAND_METHOD
1193 should already have non-const pointers to it (ie. they should only
1194 modify their own ones).
1197 *) Made a variety of little tweaks to the ENGINE code.
1198 - "atalla" and "ubsec" string definitions were moved from header files
1199 to C code. "nuron" string definitions were placed in variables
1200 rather than hard-coded - allowing parameterisation of these values
1201 later on via ctrl() commands.
1202 - Removed unused "#if 0"'d code.
1203 - Fixed engine list iteration code so it uses ENGINE_free() to release
1204 structural references.
1205 - Constified the RAND_METHOD element of ENGINE structures.
1206 - Constified various get/set functions as appropriate and added
1207 missing functions (including a catch-all ENGINE_cpy that duplicates
1208 all ENGINE values onto a new ENGINE except reference counts/state).
1209 - Removed NULL parameter checks in get/set functions. Setting a method
1210 or function to NULL is a way of cancelling out a previously set
1211 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1212 and doesn't justify the extra error symbols and code.
1213 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1214 flags from engine_int.h to engine.h.
1215 - Changed prototypes for ENGINE handler functions (init(), finish(),
1216 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1219 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1220 to the algorithm using long division. The binary algorithm can be
1221 used only if the modulus is odd. On 32-bit systems, it is faster
1222 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1223 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1224 up to 450 bits. In 64-bit environments, the binary algorithm
1225 appears to be advantageous for much longer moduli; here we use it
1226 for moduli up to 2048 bits.
1229 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1230 could not support the combine flag in choice fields.
1233 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1234 extensions from a certificate request to the certificate.
1237 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1238 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1239 file: this allows the display of the certificate about to be
1240 signed to be customised, to allow certain fields to be included
1241 or excluded and extension details. The old system didn't display
1242 multicharacter strings properly, omitted fields not in the policy
1243 and couldn't display additional details such as extensions.
1246 *) Function EC_POINTs_mul for multiple scalar multiplication
1247 of an arbitrary number of elliptic curve points
1248 \sum scalars[i]*points[i],
1249 optionally including the generator defined for the EC_GROUP:
1250 scalar*generator + \sum scalars[i]*points[i].
1252 EC_POINT_mul is a simple wrapper function for the typical case
1253 that the point list has just one item (besides the optional
1257 *) First EC_METHODs for curves over GF(p):
1259 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1260 operations and provides various method functions that can also
1261 operate with faster implementations of modular arithmetic.
1263 EC_GFp_mont_method() reuses most functions that are part of
1264 EC_GFp_simple_method, but uses Montgomery arithmetic.
1266 [Bodo Moeller; point addition and point doubling
1267 implementation directly derived from source code provided by
1268 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1270 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1271 crypto/ec/ec_lib.c):
1273 Curves are EC_GROUP objects (with an optional group generator)
1274 based on EC_METHODs that are built into the library.
1276 Points are EC_POINT objects based on EC_GROUP objects.
1278 Most of the framework would be able to handle curves over arbitrary
1279 finite fields, but as there are no obvious types for fields other
1280 than GF(p), some functions are limited to that for now.
1283 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1284 that the file contains a complete HTTP response.
1287 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1288 change the def and num file printf format specifier from "%-40sXXX"
1289 to "%-39s XXX". The latter will always guarantee a space after the
1290 field while the former will cause them to run together if the field
1291 is 40 of more characters long.
1294 *) Constify the cipher and digest 'method' functions and structures
1295 and modify related functions to take constant EVP_MD and EVP_CIPHER
1299 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1300 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1303 *) Modify EVP_Digest*() routines so they now return values. Although the
1304 internal software routines can never fail additional hardware versions
1308 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1310 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1311 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1314 ERR_R_NESTED_ASN1_ERROR
1316 ERR_R_MISSING_ASN1_EOS
1317 were 4 .. 9, conflicting with
1318 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1320 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1321 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1323 Add new error code 'ERR_R_INTERNAL_ERROR'.
1326 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1330 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1331 sets the subject name for a new request or supersedes the
1332 subject name in a given request. Formats that can be parsed are
1333 'CN=Some Name, OU=myOU, C=IT'
1335 'CN=Some Name/OU=myOU/C=IT'.
1337 Add options '-batch' and '-verbose' to 'openssl req'.
1338 [Massimiliano Pala <madwolf@hackmasters.net>]
1340 *) Introduce the possibility to access global variables through
1341 functions on platform were that's the best way to handle exporting
1342 global variables in shared libraries. To enable this functionality,
1343 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1344 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1345 is normally done by Configure or something similar).
1347 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1348 in the source file (foo.c) like this:
1350 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1351 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1353 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1354 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1356 OPENSSL_DECLARE_GLOBAL(int,foo);
1357 #define foo OPENSSL_GLOBAL_REF(foo)
1358 OPENSSL_DECLARE_GLOBAL(double,bar);
1359 #define bar OPENSSL_GLOBAL_REF(bar)
1361 The #defines are very important, and therefore so is including the
1362 header file everywhere where the defined globals are used.
1364 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1365 of ASN.1 items, but that structure is a bit different.
1367 The largest change is in util/mkdef.pl which has been enhanced with
1368 better and easier to understand logic to choose which symbols should
1369 go into the Windows .def files as well as a number of fixes and code
1370 cleanup (among others, algorithm keywords are now sorted
1371 lexicographically to avoid constant rewrites).
1374 *) In BN_div() keep a copy of the sign of 'num' before writing the
1375 result to 'rm' because if rm==num the value will be overwritten
1376 and produce the wrong result if 'num' is negative: this caused
1377 problems with BN_mod() and BN_nnmod().
1380 *) Function OCSP_request_verify(). This checks the signature on an
1381 OCSP request and verifies the signer certificate. The signer
1382 certificate is just checked for a generic purpose and OCSP request
1386 *) Add OCSP_check_validity() function to check the validity of OCSP
1387 responses. OCSP responses are prepared in real time and may only
1388 be a few seconds old. Simply checking that the current time lies
1389 between thisUpdate and nextUpdate max reject otherwise valid responses
1390 caused by either OCSP responder or client clock inaccuracy. Instead
1391 we allow thisUpdate and nextUpdate to fall within a certain period of
1392 the current time. The age of the response can also optionally be
1393 checked. Two new options -validity_period and -status_age added to
1397 *) If signature or public key algorithm is unrecognized print out its
1398 OID rather that just UNKNOWN.
1401 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1402 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1403 ID to be generated from the issuer certificate alone which can then be
1404 passed to OCSP_id_issuer_cmp().
1407 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1408 ASN1 modules to export functions returning ASN1_ITEM pointers
1409 instead of the ASN1_ITEM structures themselves. This adds several
1410 new macros which allow the underlying ASN1 function/structure to
1411 be accessed transparently. As a result code should not use ASN1_ITEM
1412 references directly (such as &X509_it) but instead use the relevant
1413 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1414 use of the new ASN1 code on platforms where exporting structures
1415 is problematical (for example in shared libraries) but exporting
1416 functions returning pointers to structures is not.
1419 *) Add support for overriding the generation of SSL/TLS session IDs.
1420 These callbacks can be registered either in an SSL_CTX or per SSL.
1421 The purpose of this is to allow applications to control, if they wish,
1422 the arbitrary values chosen for use as session IDs, particularly as it
1423 can be useful for session caching in multiple-server environments. A
1424 command-line switch for testing this (and any client code that wishes
1425 to use such a feature) has been added to "s_server".
1426 [Geoff Thorpe, Lutz Jaenicke]
1428 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1429 of the form '#if defined(...) || defined(...) || ...' and
1430 '#if !defined(...) && !defined(...) && ...'. This also avoids
1431 the growing number of special cases it was previously handling.
1434 *) Make all configuration macros available for application by making
1435 sure they are available in opensslconf.h, by giving them names starting
1436 with "OPENSSL_" to avoid conflicts with other packages and by making
1437 sure e_os2.h will cover all platform-specific cases together with
1439 Additionally, it is now possible to define configuration/platform-
1440 specific names (called "system identities"). In the C code, these
1441 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1442 macro with the name beginning with "OPENSSL_SYS_", which is determined
1443 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1447 *) New option -set_serial to 'req' and 'x509' this allows the serial
1448 number to use to be specified on the command line. Previously self
1449 signed certificates were hard coded with serial number 0 and the
1450 CA options of 'x509' had to use a serial number in a file which was
1454 *) New options to 'ca' utility to support V2 CRL entry extensions.
1455 Currently CRL reason, invalidity date and hold instruction are
1456 supported. Add new CRL extensions to V3 code and some new objects.
1459 *) New function EVP_CIPHER_CTX_set_padding() this is used to
1460 disable standard block padding (aka PKCS#5 padding) in the EVP
1461 API, which was previously mandatory. This means that the data is
1462 not padded in any way and so the total length much be a multiple
1463 of the block size, otherwise an error occurs.
1466 *) Initial (incomplete) OCSP SSL support.
1469 *) New function OCSP_parse_url(). This splits up a URL into its host,
1470 port and path components: primarily to parse OCSP URLs. New -url
1471 option to ocsp utility.
1474 *) New nonce behavior. The return value of OCSP_check_nonce() now
1475 reflects the various checks performed. Applications can decide
1476 whether to tolerate certain situations such as an absent nonce
1477 in a response when one was present in a request: the ocsp application
1478 just prints out a warning. New function OCSP_add1_basic_nonce()
1479 this is to allow responders to include a nonce in a response even if
1480 the request is nonce-less.
1483 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1484 skipped when using openssl x509 multiple times on a single input file,
1485 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1488 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1489 set string type: to handle setting ASN1_TIME structures. Fix ca
1490 utility to correctly initialize revocation date of CRLs.
1493 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1494 the clients preferred ciphersuites and rather use its own preferences.
1495 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1496 Internet Explorer by ensuring unchanged hash method during stepup.
1497 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1500 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1501 to aes and add a new 'exist' option to print out symbols that don't
1505 *) Additional options to ocsp utility to allow flags to be set and
1506 additional certificates supplied.
1509 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1510 OCSP client a number of certificate to only verify the response
1514 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1515 handle the new API. Currently only ECB, CBC modes supported. Add new
1518 Add TLS AES ciphersuites as described in RFC3268, "Advanced
1519 Encryption Standard (AES) Ciphersuites for Transport Layer
1520 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
1521 not enabled by default and were not part of the "ALL" ciphersuite
1522 alias because they were not yet official; they could be
1523 explicitly requested by specifying the "AESdraft" ciphersuite
1524 group alias. In the final release of OpenSSL 0.9.7, the group
1525 alias is called "AES" and is part of "ALL".)
1526 [Ben Laurie, Steve Henson, Bodo Moeller]
1528 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1529 request to response.
1532 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1533 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1534 extract information from a certificate request. OCSP_response_create()
1535 creates a response and optionally adds a basic response structure.
1536 OCSP_basic_add1_status() adds a complete single response to a basic
1537 response and returns the OCSP_SINGLERESP structure just added (to allow
1538 extensions to be included for example). OCSP_basic_add1_cert() adds a
1539 certificate to a basic response and OCSP_basic_sign() signs a basic
1540 response with various flags. New helper functions ASN1_TIME_check()
1541 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1542 (converts ASN1_TIME to GeneralizedTime).
1545 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1546 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1547 structure from a certificate. X509_pubkey_digest() digests the public_key
1548 contents: this is used in various key identifiers.
1551 *) Make sk_sort() tolerate a NULL argument.
1552 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1554 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1555 passed by the function are trusted implicitly. If any of them signed the
1556 response then it is assumed to be valid and is not verified.
1559 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1560 to data. This was previously part of the PKCS7 ASN1 code. This
1561 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1562 [Steve Henson, reported by Kenneth R. Robinette
1563 <support@securenetterm.com>]
1565 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1566 routines: without these tracing memory leaks is very painful.
1567 Fix leaks in PKCS12 and PKCS7 routines.
1570 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1571 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1572 effectively meant GeneralizedTime would never be used. Now it
1573 is initialised to -1 but X509_time_adj() now has to check the value
1574 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1575 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1576 [Steve Henson, reported by Kenneth R. Robinette
1577 <support@securenetterm.com>]
1579 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1580 result in a zero length in the ASN1_INTEGER structure which was
1581 not consistent with the structure when d2i_ASN1_INTEGER() was used
1582 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1583 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1584 where it did not print out a minus for negative ASN1_INTEGER.
1587 *) Add summary printout to ocsp utility. The various functions which
1588 convert status values to strings have been renamed to:
1589 OCSP_response_status_str(), OCSP_cert_status_str() and
1590 OCSP_crl_reason_str() and are no longer static. New options
1591 to verify nonce values and to disable verification. OCSP response
1592 printout format cleaned up.
1595 *) Add additional OCSP certificate checks. These are those specified
1596 in RFC2560. This consists of two separate checks: the CA of the
1597 certificate being checked must either be the OCSP signer certificate
1598 or the issuer of the OCSP signer certificate. In the latter case the
1599 OCSP signer certificate must contain the OCSP signing extended key
1600 usage. This check is performed by attempting to match the OCSP
1601 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1602 in the OCSP_CERTID structures of the response.
1605 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1606 and related routines. This uses the standard OpenSSL certificate
1607 verify routines to perform initial checks (just CA validity) and
1608 to obtain the certificate chain. Then additional checks will be
1609 performed on the chain. Currently the root CA is checked to see
1610 if it is explicitly trusted for OCSP signing. This is used to set
1611 a root CA as a global signing root: that is any certificate that
1612 chains to that CA is an acceptable OCSP signing certificate.
1615 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1616 extensions from a separate configuration file.
1617 As when reading extensions from the main configuration file,
1618 the '-extensions ...' option may be used for specifying the
1620 [Massimiliano Pala <madwolf@comune.modena.it>]
1622 *) New OCSP utility. Allows OCSP requests to be generated or
1623 read. The request can be sent to a responder and the output
1624 parsed, outputed or printed in text form. Not complete yet:
1625 still needs to check the OCSP response validity.
1628 *) New subcommands for 'openssl ca':
1629 'openssl ca -status <serial>' prints the status of the cert with
1630 the given serial number (according to the index file).
1631 'openssl ca -updatedb' updates the expiry status of certificates
1633 [Massimiliano Pala <madwolf@comune.modena.it>]
1635 *) New '-newreq-nodes' command option to CA.pl. This is like
1636 '-newreq', but calls 'openssl req' with the '-nodes' option
1637 so that the resulting key is not encrypted.
1638 [Damien Miller <djm@mindrot.org>]
1640 *) New configuration for the GNU Hurd.
1641 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1643 *) Initial code to implement OCSP basic response verify. This
1644 is currently incomplete. Currently just finds the signer's
1645 certificate and verifies the signature on the response.
1648 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1649 value of OPENSSLDIR. This is available via the new '-d' option
1650 to 'openssl version', and is also included in 'openssl version -a'.
1653 *) Allowing defining memory allocation callbacks that will be given
1654 file name and line number information in additional arguments
1655 (a const char* and an int). The basic functionality remains, as
1656 well as the original possibility to just replace malloc(),
1657 realloc() and free() by functions that do not know about these
1658 additional arguments. To register and find out the current
1659 settings for extended allocation functions, the following
1660 functions are provided:
1662 CRYPTO_set_mem_ex_functions
1663 CRYPTO_set_locked_mem_ex_functions
1664 CRYPTO_get_mem_ex_functions
1665 CRYPTO_get_locked_mem_ex_functions
1667 These work the same way as CRYPTO_set_mem_functions and friends.
1668 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1669 extended allocation function is enabled.
1670 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1671 a conventional allocation function is enabled.
1672 [Richard Levitte, Bodo Moeller]
1674 *) Finish off removing the remaining LHASH function pointer casts.
1675 There should no longer be any prototype-casting required when using
1676 the LHASH abstraction, and any casts that remain are "bugs". See
1677 the callback types and macros at the head of lhash.h for details
1678 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1681 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1682 If /dev/[u]random devices are not available or do not return enough
1683 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1685 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1686 /etc/entropy will be queried once each in this sequence, quering stops
1687 when enough entropy was collected without querying more sockets.
1690 *) Change the Unix RAND_poll() variant to be able to poll several
1691 random devices, as specified by DEVRANDOM, until a sufficient amount
1692 of data has been collected. We spend at most 10 ms on each file
1693 (select timeout) and read in non-blocking mode. DEVRANDOM now
1694 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1695 (previously it was just the string "/dev/urandom"), so on typical
1696 platforms the 10 ms delay will never occur.
1697 Also separate out the Unix variant to its own file, rand_unix.c.
1698 For VMS, there's a currently-empty rand_vms.c.
1701 *) Move OCSP client related routines to ocsp_cl.c. These
1702 provide utility functions which an application needing
1703 to issue a request to an OCSP responder and analyse the
1704 response will typically need: as opposed to those which an
1705 OCSP responder itself would need which will be added later.
1707 OCSP_request_sign() signs an OCSP request with an API similar
1708 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1709 response. OCSP_response_get1_basic() extracts basic response
1710 from response. OCSP_resp_find_status(): finds and extracts status
1711 information from an OCSP_CERTID structure (which will be created
1712 when the request structure is built). These are built from lower
1713 level functions which work on OCSP_SINGLERESP structures but
1714 wont normally be used unless the application wishes to examine
1715 extensions in the OCSP response for example.
1717 Replace nonce routines with a pair of functions.
1718 OCSP_request_add1_nonce() adds a nonce value and optionally
1719 generates a random value. OCSP_check_nonce() checks the
1720 validity of the nonce in an OCSP response.
1723 *) Change function OCSP_request_add() to OCSP_request_add0_id().
1724 This doesn't copy the supplied OCSP_CERTID and avoids the
1725 need to free up the newly created id. Change return type
1726 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1727 This can then be used to add extensions to the request.
1728 Deleted OCSP_request_new(), since most of its functionality
1729 is now in OCSP_REQUEST_new() (and the case insensitive name
1730 clash) apart from the ability to set the request name which
1731 will be added elsewhere.
1734 *) Update OCSP API. Remove obsolete extensions argument from
1735 various functions. Extensions are now handled using the new
1736 OCSP extension code. New simple OCSP HTTP function which
1737 can be used to send requests and parse the response.
1740 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1741 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1742 uses the special reorder version of SET OF to sort the attributes
1743 and reorder them to match the encoded order. This resolves a long
1744 standing problem: a verify on a PKCS7 structure just after signing
1745 it used to fail because the attribute order did not match the
1746 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1747 it uses the received order. This is necessary to tolerate some broken
1748 software that does not order SET OF. This is handled by encoding
1749 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1750 to produce the required SET OF.
1753 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1754 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1755 files to get correct declarations of the ASN.1 item variables.
1758 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1759 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1760 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1761 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1762 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1763 ASN1_ITEM and no wrapper functions.
1766 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1767 replace the old function pointer based I/O routines. Change most of
1768 the *_d2i_bio() and *_d2i_fp() functions to use these.
1771 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1772 lines, recognice more "algorithms" that can be deselected, and make
1773 it complain about algorithm deselection that isn't recognised.
1776 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
1777 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1778 to use new functions. Add NO_ASN1_OLD which can be set to remove
1779 some old style ASN1 functions: this can be used to determine if old
1780 code will still work when these eventually go away.
1783 *) New extension functions for OCSP structures, these follow the
1784 same conventions as certificates and CRLs.
1787 *) New function X509V3_add1_i2d(). This automatically encodes and
1788 adds an extension. Its behaviour can be customised with various
1789 flags to append, replace or delete. Various wrappers added for
1790 certifcates and CRLs.
1793 *) Fix to avoid calling the underlying ASN1 print routine when
1794 an extension cannot be parsed. Correct a typo in the
1795 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1798 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1799 entries for variables.
1802 *) Add functionality to apps/openssl.c for detecting locking
1803 problems: As the program is single-threaded, all we have
1804 to do is register a locking callback using an array for
1805 storing which locks are currently held by the program.
1808 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
1809 SSL_get_ex_data_X509_STORE_idx(), which is used in
1810 ssl_verify_cert_chain() and thus can be called at any time
1811 during TLS/SSL handshakes so that thread-safety is essential.
1812 Unfortunately, the ex_data design is not at all suited
1813 for multi-threaded use, so it probably should be abolished.
1816 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
1817 [Broadcom, tweaked and integrated by Geoff Thorpe]
1819 *) Move common extension printing code to new function
1820 X509V3_print_extensions(). Reorganise OCSP print routines and
1821 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1824 *) New function X509_signature_print() to remove duplication in some
1828 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
1829 set (this was treated exactly the same as SET OF previously). This
1830 is used to reorder the STACK representing the structure to match the
1831 encoding. This will be used to get round a problem where a PKCS7
1832 structure which was signed could not be verified because the STACK
1833 order did not reflect the encoded order.
1836 *) Reimplement the OCSP ASN1 module using the new code.
1839 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
1840 for its ASN1 operations. The old style function pointers still exist
1841 for now but they will eventually go away.
1844 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
1845 completely replaces the old ASN1 functionality with a table driven
1846 encoder and decoder which interprets an ASN1_ITEM structure describing
1847 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
1848 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
1849 has also been converted to the new form.
1852 *) Change BN_mod_exp_recp so that negative moduli are tolerated
1853 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
1854 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
1855 for negative moduli.
1858 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
1859 of not touching the result's sign bit.
1862 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
1866 *) Changed the LHASH code to use prototypes for callbacks, and created
1867 macros to declare and implement thin (optionally static) functions
1868 that provide type-safety and avoid function pointer casting for the
1869 type-specific callbacks.
1872 *) Added Kerberos Cipher Suites to be used with TLS, as written in
1874 [Veers Staats <staatsvr@asc.hpc.mil>,
1875 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
1877 *) Reformat the FAQ so the different questions and answers can be divided
1878 in sections depending on the subject.
1881 *) Have the zlib compression code load ZLIB.DLL dynamically under
1885 *) New function BN_mod_sqrt for computing square roots modulo a prime
1886 (using the probabilistic Tonelli-Shanks algorithm unless
1887 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
1888 be handled deterministically).
1889 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1891 *) Make BN_mod_inverse faster by explicitly handling small quotients
1892 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
1893 512 bits], about 30% for larger ones [1024 or 2048 bits].)
1896 *) New function BN_kronecker.
1899 *) Fix BN_gcd so that it works on negative inputs; the result is
1900 positive unless both parameters are zero.
1901 Previously something reasonably close to an infinite loop was
1902 possible because numbers could be growing instead of shrinking
1903 in the implementation of Euclid's algorithm.
1906 *) Fix BN_is_word() and BN_is_one() macros to take into account the
1907 sign of the number in question.
1909 Fix BN_is_word(a,w) to work correctly for w == 0.
1911 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
1912 because its test if the absolute value of 'a' equals 'w'.
1913 Note that BN_abs_is_word does *not* handle w == 0 reliably;
1914 it exists mostly for use in the implementations of BN_is_zero(),
1915 BN_is_one(), and BN_is_word().
1918 *) New function BN_swap.
1921 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
1922 the exponentiation functions are more likely to produce reasonable
1923 results on negative inputs.
1926 *) Change BN_mod_mul so that the result is always non-negative.
1927 Previously, it could be negative if one of the factors was negative;
1928 I don't think anyone really wanted that behaviour.
1931 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
1932 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
1933 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
1934 and add new functions:
1943 BN_mod_lshift1_quick
1947 These functions always generate non-negative results.
1949 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
1950 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
1952 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
1953 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
1954 be reduced modulo m.
1955 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
1958 The following entry accidentily appeared in the CHANGES file
1959 distributed with OpenSSL 0.9.7. The modifications described in
1960 it do *not* apply to OpenSSL 0.9.7.
1962 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1963 was actually never needed) and in BN_mul(). The removal in BN_mul()
1964 required a small change in bn_mul_part_recursive() and the addition
1965 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1966 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1967 bn_sub_words() and bn_add_words() except they take arrays with
1972 *) In 'openssl passwd', verify passwords read from the terminal
1973 unless the '-salt' option is used (which usually means that
1974 verification would just waste user's time since the resulting
1975 hash is going to be compared with some given password hash)
1976 or the new '-noverify' option is used.
1978 This is an incompatible change, but it does not affect
1979 non-interactive use of 'openssl passwd' (passwords on the command
1980 line, '-stdin' option, '-in ...' option) and thus should not
1984 *) Remove all references to RSAref, since there's no more need for it.
1987 *) Make DSO load along a path given through an environment variable
1988 (SHLIB_PATH) with shl_load().
1991 *) Constify the ENGINE code as a result of BIGNUM constification.
1992 Also constify the RSA code and most things related to it. In a
1993 few places, most notable in the depth of the ASN.1 code, ugly
1994 casts back to non-const were required (to be solved at a later
1998 *) Make it so the openssl application has all engines loaded by default.
2001 *) Constify the BIGNUM routines a little more.
2004 *) Add the following functions:
2006 ENGINE_load_cswift()
2008 ENGINE_load_atalla()
2010 ENGINE_load_builtin_engines()
2012 That way, an application can itself choose if external engines that
2013 are built-in in OpenSSL shall ever be used or not. The benefit is
2014 that applications won't have to be linked with libdl or other dso
2015 libraries unless it's really needed.
2017 Changed 'openssl engine' to load all engines on demand.
2018 Changed the engine header files to avoid the duplication of some
2019 declarations (they differed!).
2022 *) 'openssl engine' can now list capabilities.
2025 *) Better error reporting in 'openssl engine'.
2028 *) Never call load_dh_param(NULL) in s_server.
2031 *) Add engine application. It can currently list engines by name and
2032 identity, and test if they are actually available.
2035 *) Improve RPM specification file by forcing symbolic linking and making
2036 sure the installed documentation is also owned by root.root.
2037 [Damien Miller <djm@mindrot.org>]
2039 *) Give the OpenSSL applications more possibilities to make use of
2040 keys (public as well as private) handled by engines.
2043 *) Add OCSP code that comes from CertCo.
2046 *) Add VMS support for the Rijndael code.
2049 *) Added untested support for Nuron crypto accelerator.
2052 *) Add support for external cryptographic devices. This code was
2053 previously distributed separately as the "engine" branch.
2054 [Geoff Thorpe, Richard Levitte]
2056 *) Rework the filename-translation in the DSO code. It is now possible to
2057 have far greater control over how a "name" is turned into a filename
2058 depending on the operating environment and any oddities about the
2059 different shared library filenames on each system.
2062 *) Support threads on FreeBSD-elf in Configure.
2065 *) Fix for SHA1 assembly problem with MASM: it produces
2066 warnings about corrupt line number information when assembling
2067 with debugging information. This is caused by the overlapping
2069 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2072 NCONF_get_number() has no error checking at all. As a replacement,
2073 NCONF_get_number_e() is defined (_e for "error checking") and is
2074 promoted strongly. The old NCONF_get_number is kept around for
2075 binary backward compatibility.
2076 Make it possible for methods to load from something other than a BIO,
2077 by providing a function pointer that is given a name instead of a BIO.
2078 For example, this could be used to load configuration data from an
2082 *) Fix for non blocking accept BIOs. Added new I/O special reason
2083 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2084 with non blocking I/O was not possible because no retry code was
2085 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2089 *) Added the beginnings of Rijndael support.
2092 *) Fix for bug in DirectoryString mask setting. Add support for
2093 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2094 to allow certificate printing to more controllable, additional
2095 'certopt' option to 'x509' to allow new printing options to be
2099 *) Clean old EAY MD5 hack from e_os.h.
2102 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2104 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2105 by using the Codenomicon TLS Test Tool (CAN-2004-0079)
2106 [Joe Orton, Steve Henson]
2108 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2110 *) Fix additional bug revealed by the NISCC test suite:
2112 Stop bug triggering large recursion when presented with
2113 certain ASN.1 tags (CAN-2003-0851)
2116 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2118 *) Fix various bugs revealed by running the NISCC test suite:
2120 Stop out of bounds reads in the ASN1 code when presented with
2121 invalid tags (CAN-2003-0543 and CAN-2003-0544).
2123 If verify callback ignores invalid public key errors don't try to check
2124 certificate signature with the NULL public key.
2128 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2129 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2133 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2134 extra data after the compression methods not only for TLS 1.0
2135 but also for SSL 3.0 (as required by the specification).
2136 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2138 *) Change X509_certificate_type() to mark the key as exported/exportable
2139 when it's 512 *bits* long, not 512 bytes.
2142 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2144 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2145 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2146 a protocol version number mismatch like a decryption error
2147 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2150 *) Turn on RSA blinding by default in the default implementation
2151 to avoid a timing attack. Applications that don't want it can call
2152 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2153 They would be ill-advised to do so in most cases.
2154 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2156 *) Change RSA blinding code so that it works when the PRNG is not
2157 seeded (in this case, the secret RSA exponent is abused as
2158 an unpredictable seed -- if it is not unpredictable, there
2159 is no point in blinding anyway). Make RSA blinding thread-safe
2160 by remembering the creator's thread ID in rsa->blinding and
2161 having all other threads use local one-time blinding factors
2162 (this requires more computation than sharing rsa->blinding, but
2163 avoids excessive locking; and if an RSA object is not shared
2164 between threads, blinding will still be very fast).
2167 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2169 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2170 via timing by performing a MAC computation even if incorrrect
2171 block cipher padding has been found. This is a countermeasure
2172 against active attacks where the attacker has to distinguish
2173 between bad padding and a MAC verification error. (CAN-2003-0078)
2175 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2176 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2177 Martin Vuagnoux (EPFL, Ilion)]
2179 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2181 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2182 memory from it's contents. This is done with a counter that will
2183 place alternating values in each byte. This can be used to solve
2184 two issues: 1) the removal of calls to memset() by highly optimizing
2185 compilers, and 2) cleansing with other values than 0, since those can
2186 be read through on certain media, for example a swap space on disk.
2189 *) Bugfix: client side session caching did not work with external caching,
2190 because the session->cipher setting was not restored when reloading
2191 from the external cache. This problem was masked, when
2192 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2193 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2196 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2197 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2198 [Zeev Lieber <zeev-l@yahoo.com>]
2200 *) Undo an undocumented change introduced in 0.9.6e which caused
2201 repeated calls to OpenSSL_add_all_ciphers() and
2202 OpenSSL_add_all_digests() to be ignored, even after calling
2206 *) Change the default configuration reader to deal with last line not
2207 being properly terminated.
2210 *) Change X509_NAME_cmp() so it applies the special rules on handling
2211 DN values that are of type PrintableString, as well as RDNs of type
2212 emailAddress where the value has the type ia5String.
2213 [stefank@valicert.com via Richard Levitte]
2215 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2216 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2217 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2218 the bitwise-OR of the two for use by the majority of applications
2219 wanting this behaviour, and update the docs. The documented
2220 behaviour and actual behaviour were inconsistent and had been
2221 changing anyway, so this is more a bug-fix than a behavioural
2223 [Geoff Thorpe, diagnosed by Nadav Har'El]
2225 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2226 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2229 *) Fix initialization code race conditions in
2230 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2231 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2232 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2233 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2234 ssl2_get_cipher_by_char(),
2235 ssl3_get_cipher_by_char().
2236 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2238 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2239 the cached sessions are flushed, as the remove_cb() might use ex_data
2240 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2241 (see [openssl.org #212]).
2242 [Geoff Thorpe, Lutz Jaenicke]
2244 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2245 length, instead of the encoding length to d2i_ASN1_OBJECT.
2248 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2250 *) [In 0.9.6g-engine release:]
2251 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2252 [Lynn Gazis <lgazis@rainbow.com>]
2254 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2256 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2257 and get fix the header length calculation.
2258 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2259 Alon Kantor <alonk@checkpoint.com> (and others),
2262 *) Use proper error handling instead of 'assertions' in buffer
2263 overflow checks added in 0.9.6e. This prevents DoS (the
2264 assertions could call abort()).
2265 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2267 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2269 *) Add various sanity checks to asn1_get_length() to reject
2270 the ASN1 length bytes if they exceed sizeof(long), will appear
2271 negative or the content length exceeds the length of the
2273 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2275 *) Fix cipher selection routines: ciphers without encryption had no flags
2276 for the cipher strength set and where therefore not handled correctly
2277 by the selection routines (PR #130).
2280 *) Fix EVP_dsa_sha macro.
2284 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2285 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2286 that was added in OpenSSL 0.9.6d.
2288 As the countermeasure turned out to be incompatible with some
2289 broken SSL implementations, the new option is part of SSL_OP_ALL.
2290 SSL_OP_ALL is usually employed when compatibility with weird SSL
2291 implementations is desired (e.g. '-bugs' option to 's_client' and
2292 's_server'), so the new option is automatically set in many
2296 *) Changes in security patch:
2298 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2299 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2300 Air Force Materiel Command, USAF, under agreement number
2303 *) Add various sanity checks to asn1_get_length() to reject
2304 the ASN1 length bytes if they exceed sizeof(long), will appear
2305 negative or the content length exceeds the length of the
2306 supplied buffer. (CAN-2002-0659)
2307 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2309 *) Assertions for various potential buffer overflows, not known to
2311 [Ben Laurie (CHATS)]
2313 *) Various temporary buffers to hold ASCII versions of integers were
2314 too small for 64 bit platforms. (CAN-2002-0655)
2315 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2317 *) Remote buffer overflow in SSL3 protocol - an attacker could
2318 supply an oversized session ID to a client. (CAN-2002-0656)
2319 [Ben Laurie (CHATS)]
2321 *) Remote buffer overflow in SSL2 protocol - an attacker could
2322 supply an oversized client master key. (CAN-2002-0656)
2323 [Ben Laurie (CHATS)]
2325 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2327 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2328 encoded as NULL) with id-dsa-with-sha1.
2329 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2331 *) Check various X509_...() return values in apps/req.c.
2332 [Nils Larsch <nla@trustcenter.de>]
2334 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2335 an end-of-file condition would erronously be flagged, when the CRLF
2336 was just at the end of a processed block. The bug was discovered when
2337 processing data through a buffering memory BIO handing the data to a
2338 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2339 <ptsekov@syntrex.com> and Nedelcho Stanev.
2342 *) Implement a countermeasure against a vulnerability recently found
2343 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2344 before application data chunks to avoid the use of known IVs
2345 with data potentially chosen by the attacker.
2348 *) Fix length checks in ssl3_get_client_hello().
2351 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2352 to prevent ssl3_read_internal() from incorrectly assuming that
2353 ssl3_read_bytes() found application data while handshake
2354 processing was enabled when in fact s->s3->in_read_app_data was
2355 merely automatically cleared during the initial handshake.
2356 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2358 *) Fix object definitions for Private and Enterprise: they were not
2359 recognized in their shortname (=lowercase) representation. Extend
2360 obj_dat.pl to issue an error when using undefined keywords instead
2361 of silently ignoring the problem (Svenning Sorensen
2362 <sss@sss.dnsalias.net>).
2365 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2366 generators, i.e. generators other than 2 and 5. (Previously, the
2367 code did not properly initialise the 'add' and 'rem' values to
2368 BN_generate_prime().)
2370 In the new general case, we do not insist that 'generator' is
2371 actually a primitive root: This requirement is rather pointless;
2372 a generator of the order-q subgroup is just as good, if not
2376 *) Map new X509 verification errors to alerts. Discovered and submitted by
2377 Tom Wu <tom@arcot.com>.
2380 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2381 returning non-zero before the data has been completely received
2382 when using non-blocking I/O.
2383 [Bodo Moeller; problem pointed out by John Hughes]
2385 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2386 [Ben Laurie, Lutz Jaenicke]
2388 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2389 Yoram Zahavi <YoramZ@gilian.com>).
2392 *) Add information about CygWin 1.3 and on, and preserve proper
2393 configuration for the versions before that.
2394 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2396 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
2397 check whether we deal with a copy of a session and do not delete from
2398 the cache in this case. Problem reported by "Izhar Shoshani Levi"
2399 <izhar@checkpoint.com>.
2402 *) Do not store session data into the internal session cache, if it
2403 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
2404 flag is set). Proposed by Aslam <aslam@funk.com>.
2407 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
2411 *) [In 0.9.6d-engine release:]
2412 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2413 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2415 *) Add the configuration target linux-s390x.
2416 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
2418 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
2419 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
2420 variable as an indication that a ClientHello message has been
2421 received. As the flag value will be lost between multiple
2422 invocations of ssl3_accept when using non-blocking I/O, the
2423 function may not be aware that a handshake has actually taken
2424 place, thus preventing a new session from being added to the
2427 To avoid this problem, we now set s->new_session to 2 instead of
2428 using a local variable.
2429 [Lutz Jaenicke, Bodo Moeller]
2431 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
2432 if the SSL_R_LENGTH_MISMATCH error is detected.
2433 [Geoff Thorpe, Bodo Moeller]
2435 *) New 'shared_ldflag' column in Configure platform table.
2438 *) Fix EVP_CIPHER_mode macro.
2439 ["Dan S. Camper" <dan@bti.net>]
2441 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
2442 type, we must throw them away by setting rr->length to 0.
2443 [D P Chang <dpc@qualys.com>]
2445 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
2447 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
2448 <Dominikus.Scherkl@biodata.com>. (The previous implementation
2449 worked incorrectly for those cases where range = 10..._2 and
2450 3*range is two bits longer than range.)
2453 *) Only add signing time to PKCS7 structures if it is not already
2457 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
2458 OBJ_ld_ce should be OBJ_id_ce.
2459 Also some ip-pda OIDs in crypto/objects/objects.txt were
2460 incorrect (cf. RFC 3039).
2461 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
2463 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
2464 returns early because it has nothing to do.
2465 [Andy Schneider <andy.schneider@bjss.co.uk>]
2467 *) [In 0.9.6c-engine release:]
2468 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
2469 [Andy Schneider <andy.schneider@bjss.co.uk>]
2471 *) [In 0.9.6c-engine release:]
2472 Add support for Cryptographic Appliance's keyserver technology.
2473 (Use engine 'keyclient')
2474 [Cryptographic Appliances and Geoff Thorpe]
2476 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
2477 is called via tools/c89.sh because arguments have to be
2478 rearranged (all '-L' options must appear before the first object
2480 [Richard Shapiro <rshapiro@abinitio.com>]
2482 *) [In 0.9.6c-engine release:]
2483 Add support for Broadcom crypto accelerator cards, backported
2485 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
2487 *) [In 0.9.6c-engine release:]
2488 Add support for SureWare crypto accelerator cards from
2489 Baltimore Technologies. (Use engine 'sureware')
2490 [Baltimore Technologies and Mark Cox]
2492 *) [In 0.9.6c-engine release:]
2493 Add support for crypto accelerator cards from Accelerated
2494 Encryption Processing, www.aep.ie. (Use engine 'aep')
2495 [AEP Inc. and Mark Cox]
2497 *) Add a configuration entry for gcc on UnixWare.
2498 [Gary Benson <gbenson@redhat.com>]
2500 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
2501 messages are stored in a single piece (fixed-length part and
2502 variable-length part combined) and fix various bugs found on the way.
2505 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
2506 instead. BIO_gethostbyname() does not know what timeouts are
2507 appropriate, so entries would stay in cache even when they have
2509 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
2511 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
2512 faced with a pathologically small ClientHello fragment that does
2513 not contain client_version: Instead of aborting with an error,
2514 simply choose the highest available protocol version (i.e.,
2515 TLS 1.0 unless it is disabled). In practice, ClientHello
2516 messages are never sent like this, but this change gives us
2517 strictly correct behaviour at least for TLS.
2520 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
2521 never resets s->method to s->ctx->method when called from within
2522 one of the SSL handshake functions.
2523 [Bodo Moeller; problem pointed out by Niko Baric]
2525 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
2526 (sent using the client's version number) if client_version is
2527 smaller than the protocol version in use. Also change
2528 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
2529 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
2530 the client will at least see that alert.
2533 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
2537 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
2538 client receives HelloRequest while in a handshake.
2539 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
2541 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
2542 should end in 'break', not 'goto end' which circuments various
2543 cleanups done in state SSL_ST_OK. But session related stuff
2544 must be disabled for SSL_ST_OK in the case that we just sent a
2547 Also avoid some overhead by not calling ssl_init_wbio_buffer()
2548 before just sending a HelloRequest.
2549 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
2551 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
2552 reveal whether illegal block cipher padding was found or a MAC
2553 verification error occured. (Neither SSLerr() codes nor alerts
2554 are directly visible to potential attackers, but the information
2555 may leak via logfiles.)
2557 Similar changes are not required for the SSL 2.0 implementation
2558 because the number of padding bytes is sent in clear for SSL 2.0,
2559 and the extra bytes are just ignored. However ssl/s2_pkt.c
2560 failed to verify that the purported number of padding bytes is in
2564 *) Add OpenUNIX-8 support including shared libraries
2565 (Boyd Lynn Gerber <gerberb@zenez.com>).
2568 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
2569 'wristwatch attack' using huge encoding parameters (cf.
2570 James H. Manger's CRYPTO 2001 paper). Note that the
2571 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
2572 encoding parameters and hence was not vulnerable.
2575 *) BN_sqr() bug fix.
2576 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
2578 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
2579 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
2580 followed by modular reduction.
2581 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
2583 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
2584 equivalent based on BN_pseudo_rand() instead of BN_rand().
2587 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
2588 This function was broken, as the check for a new client hello message
2589 to handle SGC did not allow these large messages.
2590 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
2593 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
2596 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
2597 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
2600 *) Rework the configuration and shared library support for Tru64 Unix.
2601 The configuration part makes use of modern compiler features and
2602 still retains old compiler behavior for those that run older versions
2603 of the OS. The shared library support part includes a variant that
2604 uses the RPATH feature, and is available through the special
2605 configuration target "alpha-cc-rpath", which will never be selected
2607 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
2609 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
2610 with the same message size as in ssl3_get_certificate_request().
2611 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
2612 messages might inadvertently be reject as too long.
2613 [Petr Lampa <lampa@fee.vutbr.cz>]
2615 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
2618 *) Modified SSL library such that the verify_callback that has been set
2619 specificly for an SSL object with SSL_set_verify() is actually being
2620 used. Before the change, a verify_callback set with this function was
2621 ignored and the verify_callback() set in the SSL_CTX at the time of
2622 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
2623 to allow the necessary settings.
2626 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
2627 explicitly to NULL, as at least on Solaris 8 this seems not always to be
2628 done automatically (in contradiction to the requirements of the C
2629 standard). This made problems when used from OpenSSH.
2632 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
2633 dh->length and always used
2635 BN_rand_range(priv_key, dh->p).
2637 BN_rand_range() is not necessary for Diffie-Hellman, and this
2638 specific range makes Diffie-Hellman unnecessarily inefficient if
2639 dh->length (recommended exponent length) is much smaller than the
2640 length of dh->p. We could use BN_rand_range() if the order of
2641 the subgroup was stored in the DH structure, but we only have
2646 BN_rand(priv_key, l, ...)
2648 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
2654 RSA_eay_public_encrypt
2655 RSA_eay_private_decrypt
2656 RSA_eay_private_encrypt (signing)
2657 RSA_eay_public_decrypt (signature verification)
2659 (default implementations for RSA_public_encrypt,
2660 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
2661 always reject numbers >= n.
2664 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
2665 to synchronize access to 'locking_thread'. This is necessary on
2666 systems where access to 'locking_thread' (an 'unsigned long'
2667 variable) is not atomic.
2670 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
2671 *before* setting the 'crypto_lock_rand' flag. The previous code had
2672 a race condition if 0 is a valid thread ID.
2673 [Travis Vitek <vitek@roguewave.com>]
2675 *) Add support for shared libraries under Irix.
2676 [Albert Chin-A-Young <china@thewrittenword.com>]
2678 *) Add configuration option to build on Linux on both big-endian and
2680 [Ralf Baechle <ralf@uni-koblenz.de>]
2682 *) Add the possibility to create shared libraries on HP-UX.
2685 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
2687 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
2688 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
2689 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
2690 PRNG state recovery was possible based on the output of
2691 one PRNG request appropriately sized to gain knowledge on
2692 'md' followed by enough consecutive 1-byte PRNG requests
2693 to traverse all of 'state'.
2695 1. When updating 'md_local' (the current thread's copy of 'md')
2696 during PRNG output generation, hash all of the previous
2697 'md_local' value, not just the half used for PRNG output.
2699 2. Make the number of bytes from 'state' included into the hash
2700 independent from the number of PRNG bytes requested.
2702 The first measure alone would be sufficient to avoid
2703 Markku-Juhani's attack. (Actually it had never occurred
2704 to me that the half of 'md_local' used for chaining was the
2705 half from which PRNG output bytes were taken -- I had always
2706 assumed that the secret half would be used.) The second
2707 measure makes sure that additional data from 'state' is never
2708 mixed into 'md_local' in small portions; this heuristically
2709 further strengthens the PRNG.
2712 *) Fix crypto/bn/asm/mips3.s.
2715 *) When only the key is given to "enc", the IV is undefined. Print out
2716 an error message in this case.
2719 *) Handle special case when X509_NAME is empty in X509 printing routines.
2722 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
2723 positive and less than q.
2726 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
2727 used: it isn't thread safe and the add_lock_callback should handle
2729 [Paul Rose <Paul.Rose@bridge.com>]
2731 *) Verify that incoming data obeys the block size in
2732 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
2736 [Ulf Möller, Bodo Möller]
2738 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
2739 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
2740 when fixing the server behaviour for backwards-compatible 'client
2741 hello' messages. (Note that the attack is impractical against
2742 SSL 3.0 and TLS 1.0 anyway because length and version checking
2743 means that the probability of guessing a valid ciphertext is
2744 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
2747 Before 0.9.5, the countermeasure (hide the error by generating a
2748 random 'decryption result') did not work properly because
2749 ERR_clear_error() was missing, meaning that SSL_get_error() would
2750 detect the supposedly ignored error.
2752 Both problems are now fixed.
2755 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
2756 (previously it was 1024).
2759 *) Fix for compatibility mode trust settings: ignore trust settings
2760 unless some valid trust or reject settings are present.
2763 *) Fix for blowfish EVP: its a variable length cipher.
2766 *) Fix various bugs related to DSA S/MIME verification. Handle missing
2767 parameters in DSA public key structures and return an error in the
2768 DSA routines if parameters are absent.
2771 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
2772 in the current directory if neither $RANDFILE nor $HOME was set.
2773 RAND_file_name() in 0.9.6a returned NULL in this case. This has
2774 caused some confusion to Windows users who haven't defined $HOME.
2775 Thus RAND_file_name() is changed again: e_os.h can define a
2776 DEFAULT_HOME, which will be used if $HOME is not set.
2777 For Windows, we use "C:"; on other platforms, we still require
2778 environment variables.
2780 *) Move 'if (!initialized) RAND_poll()' into regions protected by
2781 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
2782 having multiple threads call RAND_poll() concurrently.
2785 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
2786 combination of a flag and a thread ID variable.
2787 Otherwise while one thread is in ssleay_rand_bytes (which sets the
2788 flag), *other* threads can enter ssleay_add_bytes without obeying
2789 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
2790 that they do not hold after the first thread unsets add_do_not_lock).
2793 *) Change bctest again: '-x' expressions are not available in all
2797 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
2799 *) Fix a couple of memory leaks in PKCS7_dataDecode()
2800 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
2802 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
2803 the default extension for executables, if any. Also, make the perl
2804 scripts that use symlink() to test if it really exists and use "cp"
2805 if it doesn't. All this made OpenSSL compilable and installable in
2809 *) Fix for asn1_GetSequence() for indefinite length constructed data.
2810 If SEQUENCE is length is indefinite just set c->slen to the total
2811 amount of data available.
2812 [Steve Henson, reported by shige@FreeBSD.org]
2813 [This change does not apply to 0.9.7.]
2815 *) Change bctest to avoid here-documents inside command substitution
2816 (workaround for FreeBSD /bin/sh bug).
2817 For compatibility with Ultrix, avoid shell functions (introduced
2818 in the bctest version that searches along $PATH).
2821 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
2822 with des_encrypt() defined on some operating systems, like Solaris
2826 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
2827 On the Importance of Eliminating Errors in Cryptographic
2828 Computations, J. Cryptology 14 (2001) 2, 101-119,
2829 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
2832 *) MIPS assembler BIGNUM division bug fix.
2835 *) Disabled incorrect Alpha assembler code.
2838 *) Fix PKCS#7 decode routines so they correctly update the length
2839 after reading an EOC for the EXPLICIT tag.
2841 [This change does not apply to 0.9.7.]
2843 *) Fix bug in PKCS#12 key generation routines. This was triggered
2844 if a 3DES key was generated with a 0 initial byte. Include
2845 PKCS12_BROKEN_KEYGEN compilation option to retain the old
2846 (but broken) behaviour.
2849 *) Enhance bctest to search for a working bc along $PATH and print
2851 [Tim Rice <tim@multitalents.net> via Richard Levitte]
2853 *) Fix memory leaks in err.c: free err_data string if necessary;
2854 don't write to the wrong index in ERR_set_error_data.
2857 *) Implement ssl23_peek (analogous to ssl23_read), which previously
2861 *) Replace rdtsc with _emit statements for VC++ version 5.
2862 [Jeremy Cooper <jeremy@baymoo.org>]
2864 *) Make it possible to reuse SSLv2 sessions.
2867 *) In copy_email() check for >= 0 as a return value for
2868 X509_NAME_get_index_by_NID() since 0 is a valid index.
2869 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
2871 *) Avoid coredump with unsupported or invalid public keys by checking if
2872 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
2873 PKCS7_verify() fails with non detached data.
2876 *) Don't use getenv in library functions when run as setuid/setgid.
2877 New function OPENSSL_issetugid().
2880 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
2881 due to incorrect handling of multi-threading:
2883 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
2885 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
2887 3. Count how many times MemCheck_off() has been called so that
2888 nested use can be treated correctly. This also avoids
2889 inband-signalling in the previous code (which relied on the
2890 assumption that thread ID 0 is impossible).
2893 *) Add "-rand" option also to s_client and s_server.
2896 *) Fix CPU detection on Irix 6.x.
2897 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
2898 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2900 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
2903 [This change does not apply to 0.9.7.]
2905 *) Use the cached encoding of an X509_NAME structure rather than
2906 copying it. This is apparently the reason for the libsafe "errors"
2907 but the code is actually correct.
2910 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
2911 Bleichenbacher's DSA attack.
2912 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
2913 to be set and top=0 forces the highest bit to be set; top=-1 is new
2914 and leaves the highest bit random.
2915 [Ulf Moeller, Bodo Moeller]
2917 *) In the NCONF_...-based implementations for CONF_... queries
2918 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
2919 a temporary CONF structure with the data component set to NULL
2920 (which gives segmentation faults in lh_retrieve).
2921 Instead, use NULL for the CONF pointer in CONF_get_string and
2922 CONF_get_number (which may use environment variables) and directly
2923 return NULL from CONF_get_section.
2926 *) Fix potential buffer overrun for EBCDIC.
2929 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
2930 keyUsage if basicConstraints absent for a CA.
2933 *) Make SMIME_write_PKCS7() write mail header values with a format that
2934 is more generally accepted (no spaces before the semicolon), since
2935 some programs can't parse those values properly otherwise. Also make
2936 sure BIO's that break lines after each write do not create invalid
2940 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
2941 macros previously used would not encode an empty SEQUENCE OF
2942 and break the signature.
2944 [This change does not apply to 0.9.7.]
2946 *) Zero the premaster secret after deriving the master secret in
2950 *) Add some EVP_add_digest_alias registrations (as found in
2951 OpenSSL_add_all_digests()) to SSL_library_init()
2952 aka OpenSSL_add_ssl_algorithms(). This provides improved
2953 compatibility with peers using X.509 certificates
2954 with unconventional AlgorithmIdentifier OIDs.
2957 *) Fix for Irix with NO_ASM.
2958 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
2960 *) ./config script fixes.
2961 [Ulf Moeller, Richard Levitte]
2963 *) Fix 'openssl passwd -1'.
2966 *) Change PKCS12_key_gen_asc() so it can cope with non null
2967 terminated strings whose length is passed in the passlen
2968 parameter, for example from PEM callbacks. This was done
2969 by adding an extra length parameter to asc2uni().
2970 [Steve Henson, reported by <oddissey@samsung.co.kr>]
2972 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
2973 call failed, free the DSA structure.
2976 *) Fix to uni2asc() to cope with zero length Unicode strings.
2977 These are present in some PKCS#12 files.
2980 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
2981 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
2982 when writing a 32767 byte record.
2983 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
2985 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
2986 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
2988 (RSA objects have a reference count access to which is protected
2989 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
2990 so they are meant to be shared between threads.)
2991 [Bodo Moeller, Geoff Thorpe; original patch submitted by
2992 "Reddie, Steven" <Steven.Reddie@ca.com>]
2994 *) Fix a deadlock in CRYPTO_mem_leaks().
2997 *) Use better test patterns in bntest.
3000 *) rand_win.c fix for Borland C.
3003 *) BN_rshift bugfix for n == 0.
3006 *) Add a 'bctest' script that checks for some known 'bc' bugs
3007 so that 'make test' does not abort just because 'bc' is broken.
3010 *) Store verify_result within SSL_SESSION also for client side to
3011 avoid potential security hole. (Re-used sessions on the client side
3012 always resulted in verify_result==X509_V_OK, not using the original
3013 result of the server certificate verification.)
3016 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3017 SSL3_RT_APPLICATION_DATA, return 0.
3018 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3022 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3023 releases, have been re-implemented by renaming the previous
3024 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3025 and ssl3_read_internal, respectively, and adding 'peek' parameters
3026 to them. The new ssl[23]_{read,peek} functions are calls to
3027 ssl[23]_read_internal with the 'peek' flag set appropriately.
3028 A 'peek' parameter has also been added to ssl3_read_bytes, which
3029 does the actual work for ssl3_read_internal.
3032 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3033 the method-specific "init()" handler. Also clean up ex_data after
3034 calling the method-specific "finish()" handler. Previously, this was
3035 happening the other way round.
3038 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3039 The previous value, 12, was not always sufficient for BN_mod_exp().
3042 *) Make sure that shared libraries get the internal name engine with
3043 the full version number and not just 0. This should mark the
3044 shared libraries as not backward compatible. Of course, this should
3045 be changed again when we can guarantee backward binary compatibility.
3048 *) Fix typo in get_cert_by_subject() in by_dir.c
3049 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3051 *) Rework the system to generate shared libraries:
3053 - Make note of the expected extension for the shared libraries and
3054 if there is a need for symbolic links from for example libcrypto.so.0
3055 to libcrypto.so.0.9.7. There is extended info in Configure for
3058 - Make as few rebuilds of the shared libraries as possible.
3060 - Still avoid linking the OpenSSL programs with the shared libraries.
3062 - When installing, install the shared libraries separately from the
3066 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3068 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3069 and not in SSL_clear because the latter is also used by the
3070 accept/connect functions; previously, the settings made by
3071 SSL_set_read_ahead would be lost during the handshake.
3072 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3074 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3075 Previously, it would create entries for disableed algorithms no
3079 *) Added several new manual pages for SSL_* function.
3082 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3084 *) In ssl23_get_client_hello, generate an error message when faced
3085 with an initial SSL 3.0/TLS record that is too small to contain the
3086 first two bytes of the ClientHello message, i.e. client_version.
3087 (Note that this is a pathologic case that probably has never happened
3088 in real life.) The previous approach was to use the version number
3089 from the record header as a substitute; but our protocol choice
3090 should not depend on that one because it is not authenticated
3091 by the Finished messages.
3094 *) More robust randomness gathering functions for Windows.
3095 [Jeffrey Altman <jaltman@columbia.edu>]
3097 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3098 not set then we don't setup the error code for issuer check errors
3099 to avoid possibly overwriting other errors which the callback does
3100 handle. If an application does set the flag then we assume it knows
3101 what it is doing and can handle the new informational codes
3105 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3106 a general "ANY" type, as such it should be able to decode anything
3107 including tagged types. However it didn't check the class so it would
3108 wrongly interpret tagged types in the same way as their universal
3109 counterpart and unknown types were just rejected. Changed so that the
3110 tagged and unknown types are handled in the same way as a SEQUENCE:
3111 that is the encoding is stored intact. There is also a new type
3112 "V_ASN1_OTHER" which is used when the class is not universal, in this
3113 case we have no idea what the actual type is so we just lump them all
3117 *) On VMS, stdout may very well lead to a file that is written to
3118 in a record-oriented fashion. That means that every write() will
3119 write a separate record, which will be read separately by the
3120 programs trying to read from it. This can be very confusing.
3122 The solution is to put a BIO filter in the way that will buffer
3123 text until a linefeed is reached, and then write everything a
3124 line at a time, so every record written will be an actual line,
3125 not chunks of lines and not (usually doesn't happen, but I've
3126 seen it once) several lines in one record. BIO_f_linebuffer() is
3129 Currently, it's a VMS-only method, because that's where it has
3130 been tested well enough.
3133 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3134 it can return incorrect results.
3135 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3136 but it was in 0.9.6-beta[12].)
3139 *) Disable the check for content being present when verifying detached
3140 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3141 include zero length content when signing messages.
3144 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3145 BIO_ctrl (for BIO pairs).
3148 *) Add DSO method for VMS.
3151 *) Bug fix: Montgomery multiplication could produce results with the
3155 *) Add RPM specification openssl.spec and modify it to build three
3156 packages. The default package contains applications, application
3157 documentation and run-time libraries. The devel package contains
3158 include files, static libraries and function documentation. The
3159 doc package contains the contents of the doc directory. The original
3160 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3163 *) Add a large number of documentation files for many SSL routines.
3164 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3166 *) Add a configuration entry for Sony News 4.
3167 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3169 *) Don't set the two most significant bits to one when generating a
3170 random number < q in the DSA library.
3173 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3174 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3175 the underlying transport is blocking) if a handshake took place.
3176 (The default behaviour is needed by applications such as s_client
3177 and s_server that use select() to determine when to use SSL_read;
3178 but for applications that know in advance when to expect data, it
3179 just makes things more complicated.)
3182 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3186 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3187 work better on such systems.
3188 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3190 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3191 Update PKCS12_parse() so it copies the friendlyName and the
3192 keyid to the certificates aux info.
3195 *) Fix bug in PKCS7_verify() which caused an infinite loop
3196 if there was more than one signature.
3197 [Sven Uszpelkat <su@celocom.de>]
3199 *) Major change in util/mkdef.pl to include extra information
3200 about each symbol, as well as presentig variables as well
3201 as functions. This change means that there's n more need
3202 to rebuild the .num files when some algorithms are excluded.
3205 *) Allow the verify time to be set by an application,
3206 rather than always using the current time.
3209 *) Phase 2 verify code reorganisation. The certificate
3210 verify code now looks up an issuer certificate by a
3211 number of criteria: subject name, authority key id
3212 and key usage. It also verifies self signed certificates
3213 by the same criteria. The main comparison function is
3214 X509_check_issued() which performs these checks.
3216 Lot of changes were necessary in order to support this
3217 without completely rewriting the lookup code.
3219 Authority and subject key identifier are now cached.
3221 The LHASH 'certs' is X509_STORE has now been replaced
3222 by a STACK_OF(X509_OBJECT). This is mainly because an
3223 LHASH can't store or retrieve multiple objects with
3224 the same hash value.
3226 As a result various functions (which were all internal
3227 use only) have changed to handle the new X509_STORE
3228 structure. This will break anything that messed round
3229 with X509_STORE internally.
3231 The functions X509_STORE_add_cert() now checks for an
3232 exact match, rather than just subject name.
3234 The X509_STORE API doesn't directly support the retrieval
3235 of multiple certificates matching a given criteria, however
3236 this can be worked round by performing a lookup first
3237 (which will fill the cache with candidate certificates)
3238 and then examining the cache for matches. This is probably
3239 the best we can do without throwing out X509_LOOKUP
3240 entirely (maybe later...).
3242 The X509_VERIFY_CTX structure has been enhanced considerably.
3244 All certificate lookup operations now go via a get_issuer()
3245 callback. Although this currently uses an X509_STORE it
3246 can be replaced by custom lookups. This is a simple way
3247 to bypass the X509_STORE hackery necessary to make this
3248 work and makes it possible to use more efficient techniques
3249 in future. A very simple version which uses a simple
3250 STACK for its trusted certificate store is also provided
3251 using X509_STORE_CTX_trusted_stack().
3253 The verify_cb() and verify() callbacks now have equivalents
3254 in the X509_STORE_CTX structure.
3256 X509_STORE_CTX also has a 'flags' field which can be used
3257 to customise the verify behaviour.
3260 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3261 excludes S/MIME capabilities.
3264 *) When a certificate request is read in keep a copy of the
3265 original encoding of the signed data and use it when outputing
3266 again. Signatures then use the original encoding rather than
3267 a decoded, encoded version which may cause problems if the
3268 request is improperly encoded.
3271 *) For consistency with other BIO_puts implementations, call
3272 buffer_write(b, ...) directly in buffer_puts instead of calling
3275 In BIO_puts, increment b->num_write as in BIO_write.
3276 [Peter.Sylvester@EdelWeb.fr]
3278 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3279 BN_zero, we may not return a BIGNUM with an array consisting of
3283 *) Avoid calling abort() from within the library when problems are
3284 detected, except if preprocessor symbols have been defined
3285 (such as REF_CHECK, BN_DEBUG etc.).
3288 *) New openssl application 'rsautl'. This utility can be
3289 used for low level RSA operations. DER public key
3290 BIO/fp routines also added.
3293 *) New Configure entry and patches for compiling on QNX 4.
3294 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3296 *) A demo state-machine implementation was sponsored by
3297 Nuron (http://www.nuron.com/) and is now available in
3298 demos/state_machine.
3301 *) New options added to the 'dgst' utility for signature
3302 generation and verification.
3305 *) Unrecognized PKCS#7 content types are now handled via a
3306 catch all ASN1_TYPE structure. This allows unsupported
3307 types to be stored as a "blob" and an application can
3308 encode and decode it manually.
3311 *) Fix various signed/unsigned issues to make a_strex.c
3313 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3315 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3316 length if passed a buffer. ASN1_INTEGER_to_BN failed
3317 if passed a NULL BN and its argument was negative.
3318 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3320 *) Modification to PKCS#7 encoding routines to output definite
3321 length encoding. Since currently the whole structures are in
3322 memory there's not real point in using indefinite length
3323 constructed encoding. However if OpenSSL is compiled with
3324 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3327 *) Added BIO_vprintf() and BIO_vsnprintf().
3330 *) Added more prefixes to parse for in the the strings written
3331 through a logging bio, to cover all the levels that are available
3332 through syslog. The prefixes are now:
3334 PANIC, EMERG, EMR => LOG_EMERG
3335 ALERT, ALR => LOG_ALERT
3336 CRIT, CRI => LOG_CRIT
3337 ERROR, ERR => LOG_ERR
3338 WARNING, WARN, WAR => LOG_WARNING
3339 NOTICE, NOTE, NOT => LOG_NOTICE
3340 INFO, INF => LOG_INFO
3341 DEBUG, DBG => LOG_DEBUG
3343 and as before, if none of those prefixes are present at the
3344 beginning of the string, LOG_ERR is chosen.
3346 On Win32, the LOG_* levels are mapped according to this:
3348 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3349 LOG_WARNING => EVENTLOG_WARNING_TYPE
3350 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3354 *) Made it possible to reconfigure with just the configuration
3355 argument "reconf" or "reconfigure". The command line arguments
3356 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3357 and are retrieved from there when reconfiguring.
3361 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3363 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3366 *) The obj_dat.pl script was messing up the sorting of object
3367 names. The reason was that it compared the quoted version
3368 of strings as a result "OCSP" > "OCSP Signing" because
3369 " > SPACE. Changed script to store unquoted versions of
3370 names and add quotes on output. It was also omitting some
3371 names from the lookup table if they were given a default
3372 value (that is if SN is missing it is given the same
3373 value as LN and vice versa), these are now added on the
3374 grounds that if an object has a name we should be able to
3375 look it up. Finally added warning output when duplicate
3376 short or long names are found.
3379 *) Changes needed for Tandem NSK.
3380 [Scott Uroff <scott@xypro.com>]
3382 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3383 RSA_padding_check_SSLv23(), special padding was never detected
3384 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3385 version rollback attacks was not effective.
3387 In s23_clnt.c, don't use special rollback-attack detection padding
3388 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3389 client; similarly, in s23_srvr.c, don't do the rollback check if
3390 SSL 2.0 is the only protocol enabled in the server.
3393 *) Make it possible to get hexdumps of unprintable data with 'openssl
3394 asn1parse'. By implication, the functions ASN1_parse_dump() and
3395 BIO_dump_indent() are added.
3398 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
3399 these print out strings and name structures based on various
3400 flags including RFC2253 support and proper handling of
3401 multibyte characters. Added options to the 'x509' utility
3402 to allow the various flags to be set.
3405 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
3406 Also change the functions X509_cmp_current_time() and
3407 X509_gmtime_adj() work with an ASN1_TIME structure,
3408 this will enable certificates using GeneralizedTime in validity
3409 dates to be checked.
3412 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
3413 negative public key encodings) on by default,
3414 NO_NEG_PUBKEY_BUG can be set to disable it.
3417 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
3418 content octets. An i2c_ASN1_OBJECT is unnecessary because
3419 the encoding can be trivially obtained from the structure.
3422 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
3423 not read locks (CRYPTO_r_[un]lock).
3426 *) A first attempt at creating official support for shared
3427 libraries through configuration. I've kept it so the
3428 default is static libraries only, and the OpenSSL programs
3429 are always statically linked for now, but there are
3430 preparations for dynamic linking in place.
3431 This has been tested on Linux and Tru64.
3434 *) Randomness polling function for Win9x, as described in:
3435 Peter Gutmann, Software Generation of Practically Strong
3439 *) Fix so PRNG is seeded in req if using an already existing
3443 *) New options to smime application. -inform and -outform
3444 allow alternative formats for the S/MIME message including
3445 PEM and DER. The -content option allows the content to be
3446 specified separately. This should allow things like Netscape
3447 form signing output easier to verify.
3450 *) Fix the ASN1 encoding of tags using the 'long form'.
3453 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
3454 STRING types. These convert content octets to and from the
3455 underlying type. The actual tag and length octets are
3456 already assumed to have been read in and checked. These
3457 are needed because all other string types have virtually
3458 identical handling apart from the tag. By having versions
3459 of the ASN1 functions that just operate on content octets
3460 IMPLICIT tagging can be handled properly. It also allows
3461 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
3462 and ASN1_INTEGER are identical apart from the tag.
3465 *) Change the handling of OID objects as follows:
3467 - New object identifiers are inserted in objects.txt, following
3468 the syntax given in objects.README.
3469 - objects.pl is used to process obj_mac.num and create a new
3471 - obj_dat.pl is used to create a new obj_dat.h, using the data in
3474 This is currently kind of a hack, and the perl code in objects.pl
3475 isn't very elegant, but it works as I intended. The simplest way
3476 to check that it worked correctly is to look in obj_dat.h and
3477 check the array nid_objs and make sure the objects haven't moved
3478 around (this is important!). Additions are OK, as well as
3479 consistent name changes.
3482 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
3485 *) Addition of the command line parameter '-rand file' to 'openssl req'.
3486 The given file adds to whatever has already been seeded into the
3487 random pool through the RANDFILE configuration file option or
3488 environment variable, or the default random state file.
3491 *) mkstack.pl now sorts each macro group into lexical order.
3492 Previously the output order depended on the order the files
3493 appeared in the directory, resulting in needless rewriting
3497 *) Patches to make OpenSSL compile under Win32 again. Mostly
3498 work arounds for the VC++ problem that it treats func() as
3499 func(void). Also stripped out the parts of mkdef.pl that
3500 added extra typesafe functions: these no longer exist.
3503 *) Reorganisation of the stack code. The macros are now all
3504 collected in safestack.h . Each macro is defined in terms of
3505 a "stack macro" of the form SKM_<name>(type, a, b). The
3506 DEBUG_SAFESTACK is now handled in terms of function casts,
3507 this has the advantage of retaining type safety without the
3508 use of additional functions. If DEBUG_SAFESTACK is not defined
3509 then the non typesafe macros are used instead. Also modified the
3510 mkstack.pl script to handle the new form. Needs testing to see
3511 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
3512 the default if no major problems. Similar behaviour for ASN1_SET_OF
3513 and PKCS12_STACK_OF.
3516 *) When some versions of IIS use the 'NET' form of private key the
3517 key derivation algorithm is different. Normally MD5(password) is
3518 used as a 128 bit RC4 key. In the modified case
3519 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
3520 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
3521 as the old Netscape_RSA functions except they have an additional
3522 'sgckey' parameter which uses the modified algorithm. Also added
3523 an -sgckey command line option to the rsa utility. Thanks to
3524 Adrian Peck <bertie@ncipher.com> for posting details of the modified
3525 algorithm to openssl-dev.
3528 *) The evp_local.h macros were using 'c.##kname' which resulted in
3529 invalid expansion on some systems (SCO 5.0.5 for example).
3530 Corrected to 'c.kname'.
3531 [Phillip Porch <root@theporch.com>]
3533 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
3534 a STACK of email addresses from a certificate or request, these look
3535 in the subject name and the subject alternative name extensions and
3536 omit any duplicate addresses.
3539 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
3540 This makes DSA verification about 2 % faster.
3543 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
3544 (meaning that now 2^5 values will be precomputed, which is only 4 KB
3545 plus overhead for 1024 bit moduli).
3546 This makes exponentiations about 0.5 % faster for 1024 bit
3547 exponents (as measured by "openssl speed rsa2048").
3550 *) Rename memory handling macros to avoid conflicts with other
3552 Malloc => OPENSSL_malloc
3553 Malloc_locked => OPENSSL_malloc_locked
3554 Realloc => OPENSSL_realloc
3555 Free => OPENSSL_free
3558 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
3559 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
3562 *) CygWin32 support.
3563 [John Jarvie <jjarvie@newsguy.com>]
3565 *) The type-safe stack code has been rejigged. It is now only compiled
3566 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
3567 by default all type-specific stack functions are "#define"d back to
3568 standard stack functions. This results in more streamlined output
3569 but retains the type-safety checking possibilities of the original
3573 *) The STACK code has been cleaned up, and certain type declarations
3574 that didn't make a lot of sense have been brought in line. This has
3575 also involved a cleanup of sorts in safestack.h to more correctly
3576 map type-safe stack functions onto their plain stack counterparts.
3577 This work has also resulted in a variety of "const"ifications of
3578 lots of the code, especially "_cmp" operations which should normally
3579 be prototyped with "const" parameters anyway.
3582 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
3583 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
3584 (The PRNG state consists of two parts, the large pool 'state' and 'md',
3585 where all of 'md' is used each time the PRNG is used, but 'state'
3586 is used only indexed by a cyclic counter. As entropy may not be
3587 well distributed from the beginning, 'md' is important as a
3588 chaining variable. However, the output function chains only half
3589 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
3590 all of 'md', and seeding with STATE_SIZE dummy bytes will result
3591 in all of 'state' being rewritten, with the new values depending
3592 on virtually all of 'md'. This overcomes the 80 bit limitation.)
3595 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
3596 the handshake is continued after ssl_verify_cert_chain();
3597 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
3598 can lead to 'unexplainable' connection aborts later.
3599 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
3601 *) Major EVP API cipher revision.
3602 Add hooks for extra EVP features. This allows various cipher
3603 parameters to be set in the EVP interface. Support added for variable
3604 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
3605 setting of RC2 and RC5 parameters.
3607 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
3610 Remove lots of duplicated code from the EVP library. For example *every*
3611 cipher init() function handles the 'iv' in the same way according to the
3612 cipher mode. They also all do nothing if the 'key' parameter is NULL and
3613 for CFB and OFB modes they zero ctx->num.
3615 New functionality allows removal of S/MIME code RC2 hack.
3617 Most of the routines have the same form and so can be declared in terms
3620 By shifting this to the top level EVP_CipherInit() it can be removed from
3621 all individual ciphers. If the cipher wants to handle IVs or keys
3622 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
3625 Change lots of functions like EVP_EncryptUpdate() to now return a
3626 value: although software versions of the algorithms cannot fail
3627 any installed hardware versions can.
3630 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
3631 this option is set, tolerate broken clients that send the negotiated
3632 protocol version number instead of the requested protocol version
3636 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
3637 i.e. non-zero for export ciphersuites, zero otherwise.
3638 Previous versions had this flag inverted, inconsistent with
3639 rsa_tmp_cb (..._TMP_RSA_CB).
3640 [Bodo Moeller; problem reported by Amit Chopra]
3642 *) Add missing DSA library text string. Work around for some IIS
3643 key files with invalid SEQUENCE encoding.
3646 *) Add a document (doc/standards.txt) that list all kinds of standards
3647 and so on that are implemented in OpenSSL.
3650 *) Enhance c_rehash script. Old version would mishandle certificates
3651 with the same subject name hash and wouldn't handle CRLs at all.
3652 Added -fingerprint option to crl utility, to support new c_rehash
3656 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
3659 *) Fix for SSL server purpose checking. Server checking was
3660 rejecting certificates which had extended key usage present
3661 but no ssl client purpose.
3662 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
3664 *) Make PKCS#12 code work with no password. The PKCS#12 spec
3665 is a little unclear about how a blank password is handled.
3666 Since the password in encoded as a BMPString with terminating
3667 double NULL a zero length password would end up as just the
3668 double NULL. However no password at all is different and is
3669 handled differently in the PKCS#12 key generation code. NS
3670 treats a blank password as zero length. MSIE treats it as no
3671 password on export: but it will try both on import. We now do
3672 the same: PKCS12_parse() tries zero length and no password if
3673 the password is set to "" or NULL (NULL is now a valid password:
3674 it wasn't before) as does the pkcs12 application.
3677 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
3678 perror when PEM_read_bio_X509_REQ fails, the error message must
3679 be obtained from the error queue.
3682 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
3683 it in ERR_remove_state if appropriate, and change ERR_get_state
3684 accordingly to avoid race conditions (this is necessary because
3685 thread_hash is no longer constant once set).
3688 *) Bugfix for linux-elf makefile.one.
3691 *) RSA_get_default_method() will now cause a default
3692 RSA_METHOD to be chosen if one doesn't exist already.
3693 Previously this was only set during a call to RSA_new()
3694 or RSA_new_method(NULL) meaning it was possible for
3695 RSA_get_default_method() to return NULL.
3698 *) Added native name translation to the existing DSO code
3699 that will convert (if the flag to do so is set) filenames
3700 that are sufficiently small and have no path information
3701 into a canonical native form. Eg. "blah" converted to
3702 "libblah.so" or "blah.dll" etc.
3705 *) New function ERR_error_string_n(e, buf, len) which is like
3706 ERR_error_string(e, buf), but writes at most 'len' bytes
3707 including the 0 terminator. For ERR_error_string_n, 'buf'
3709 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
3711 *) CONF library reworked to become more general. A new CONF
3712 configuration file reader "class" is implemented as well as a
3713 new functions (NCONF_*, for "New CONF") to handle it. The now
3714 old CONF_* functions are still there, but are reimplemented to
3715 work in terms of the new functions. Also, a set of functions
3716 to handle the internal storage of the configuration data is
3717 provided to make it easier to write new configuration file
3718 reader "classes" (I can definitely see something reading a
3719 configuration file in XML format, for example), called _CONF_*,
3720 or "the configuration storage API"...
3722 The new configuration file reading functions are:
3724 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
3725 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
3727 NCONF_default, NCONF_WIN32
3729 NCONF_dump_fp, NCONF_dump_bio
3731 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
3732 NCONF_new creates a new CONF object. This works in the same way
3733 as other interfaces in OpenSSL, like the BIO interface.
3734 NCONF_dump_* dump the internal storage of the configuration file,
3735 which is useful for debugging. All other functions take the same
3736 arguments as the old CONF_* functions wth the exception of the
3737 first that must be a `CONF *' instead of a `LHASH *'.
3739 To make it easer to use the new classes with the old CONF_* functions,
3740 the function CONF_set_default_method is provided.
3743 *) Add '-tls1' option to 'openssl ciphers', which was already
3744 mentioned in the documentation but had not been implemented.
3745 (This option is not yet really useful because even the additional
3746 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
3749 *) Initial DSO code added into libcrypto for letting OpenSSL (and
3750 OpenSSL-based applications) load shared libraries and bind to
3751 them in a portable way.
3752 [Geoff Thorpe, with contributions from Richard Levitte]
3754 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
3756 *) Make sure _lrotl and _lrotr are only used with MSVC.
3758 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
3759 (the default implementation of RAND_status).
3761 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
3762 to '-clrext' (= clear extensions), as intended and documented.
3763 [Bodo Moeller; inconsistency pointed out by Michael Attili
3766 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
3767 was larger than the MD block size.
3768 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
3770 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
3771 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
3772 using the passed key: if the passed key was a private key the result
3773 of X509_print(), for example, would be to print out all the private key
3777 *) des_quad_cksum() byte order bug fix.
3778 [Ulf Möller, using the problem description in krb4-0.9.7, where
3779 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
3781 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
3783 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
3785 *) For easily testing in shell scripts whether some command
3786 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
3787 returns with exit code 0 iff no command of the given name is available.
3788 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
3789 the output goes to stdout and nothing is printed to stderr.
3790 Additional arguments are always ignored.
3792 Since for each cipher there is a command of the same name,
3793 the 'no-cipher' compilation switches can be tested this way.
3795 ('openssl no-XXX' is not able to detect pseudo-commands such
3796 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
3799 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
3802 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
3803 is set; it will be thrown away anyway because each handshake creates
3805 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
3806 to parameters -- in previous versions (since OpenSSL 0.9.3) the
3807 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
3808 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
3811 *) New s_client option -ign_eof: EOF at stdin is ignored, and
3812 'Q' and 'R' lose their special meanings (quit/renegotiate).
3813 This is part of what -quiet does; unlike -quiet, -ign_eof
3814 does not suppress any output.
3817 *) Add compatibility options to the purpose and trust code. The
3818 purpose X509_PURPOSE_ANY is "any purpose" which automatically
3819 accepts a certificate or CA, this was the previous behaviour,
3820 with all the associated security issues.
3822 X509_TRUST_COMPAT is the old trust behaviour: only and
3823 automatically trust self signed roots in certificate store. A
3824 new trust setting X509_TRUST_DEFAULT is used to specify that
3825 a purpose has no associated trust setting and it should instead
3826 use the value in the default purpose.
3829 *) Fix the PKCS#8 DSA private key code so it decodes keys again
3830 and fix a memory leak.
3833 *) In util/mkerr.pl (which implements 'make errors'), preserve
3834 reason strings from the previous version of the .c file, as
3835 the default to have only downcase letters (and digits) in
3836 automatically generated reasons codes is not always appropriate.
3839 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
3840 using strerror. Previously, ERR_reason_error_string() returned
3841 library names as reason strings for SYSerr; but SYSerr is a special
3842 case where small numbers are errno values, not library numbers.
3845 *) Add '-dsaparam' option to 'openssl dhparam' application. This
3846 converts DSA parameters into DH parameters. (When creating parameters,
3847 DSA_generate_parameters is used.)
3850 *) Include 'length' (recommended exponent length) in C code generated
3851 by 'openssl dhparam -C'.
3854 *) The second argument to set_label in perlasm was already being used
3855 so couldn't be used as a "file scope" flag. Moved to third argument
3859 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
3860 instead of RAND_bytes for encryption IVs and salts.
3863 *) Include RAND_status() into RAND_METHOD instead of implementing
3864 it only for md_rand.c Otherwise replacing the PRNG by calling
3865 RAND_set_rand_method would be impossible.
3868 *) Don't let DSA_generate_key() enter an infinite loop if the random
3869 number generation fails.
3872 *) New 'rand' application for creating pseudo-random output.
3875 *) Added configuration support for Linux/IA64
3876 [Rolf Haberrecker <rolf@suse.de>]
3878 *) Assembler module support for Mingw32.
3881 *) Shared library support for HPUX (in shlib/).
3882 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
3884 *) Shared library support for Solaris gcc.
3885 [Lutz Behnke <behnke@trustcenter.de>]
3887 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
3889 *) PKCS7_encrypt() was adding text MIME headers twice because they
3890 were added manually and by SMIME_crlf_copy().
3893 *) In bntest.c don't call BN_rand with zero bits argument.
3894 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
3896 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
3897 case was implemented. This caused BN_div_recp() to fail occasionally.
3900 *) Add an optional second argument to the set_label() in the perl
3901 assembly language builder. If this argument exists and is set
3902 to 1 it signals that the assembler should use a symbol whose
3903 scope is the entire file, not just the current function. This
3904 is needed with MASM which uses the format label:: for this scope.
3905 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
3907 *) Change the ASN1 types so they are typedefs by default. Before
3908 almost all types were #define'd to ASN1_STRING which was causing
3909 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
3913 *) Change names of new functions to the new get1/get0 naming
3914 convention: After 'get1', the caller owns a reference count
3915 and has to call ..._free; 'get0' returns a pointer to some
3916 data structure without incrementing reference counters.
3917 (Some of the existing 'get' functions increment a reference
3918 counter, some don't.)
3919 Similarly, 'set1' and 'add1' functions increase reference
3920 counters or duplicate objects.
3923 *) Allow for the possibility of temp RSA key generation failure:
3924 the code used to assume it always worked and crashed on failure.
3927 *) Fix potential buffer overrun problem in BIO_printf().
3928 [Ulf Möller, using public domain code by Patrick Powell; problem
3929 pointed out by David Sacerdote <das33@cornell.edu>]
3931 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
3932 RAND_egd() and RAND_status(). In the command line application,
3933 the EGD socket can be specified like a seed file using RANDFILE
3937 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
3938 Some CAs (e.g. Verisign) distribute certificates in this form.
3941 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
3942 list to exclude them. This means that no special compilation option
3943 is needed to use anonymous DH: it just needs to be included in the
3947 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
3948 EVP_MD_type. The old functionality is available in a new macro called
3949 EVP_MD_md(). Change code that uses it and update docs.
3952 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
3953 where the 'void *' argument is replaced by a function pointer argument.
3954 Previously 'void *' was abused to point to functions, which works on
3955 many platforms, but is not correct. As these functions are usually
3956 called by macros defined in OpenSSL header files, most source code
3957 should work without changes.
3960 *) <openssl/opensslconf.h> (which is created by Configure) now contains
3961 sections with information on -D... compiler switches used for
3962 compiling the library so that applications can see them. To enable
3963 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
3964 must be defined. E.g.,
3965 #define OPENSSL_ALGORITHM_DEFINES
3966 #include <openssl/opensslconf.h>
3967 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
3968 [Richard Levitte, Ulf and Bodo Möller]
3970 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
3974 *) Change the 'other' type in certificate aux info to a STACK_OF
3975 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
3976 the required ASN1 format: arbitrary types determined by an OID.
3979 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
3980 argument to 'req'. This is not because the function is newer or
3981 better than others it just uses the work 'NEW' in the certificate
3982 request header lines. Some software needs this.
3985 *) Reorganise password command line arguments: now passwords can be
3986 obtained from various sources. Delete the PEM_cb function and make
3987 it the default behaviour: i.e. if the callback is NULL and the
3988 usrdata argument is not NULL interpret it as a null terminated pass
3989 phrase. If usrdata and the callback are NULL then the pass phrase
3990 is prompted for as usual.
3993 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
3994 the support is automatically enabled. The resulting binaries will
3995 autodetect the card and use it if present.
3996 [Ben Laurie and Compaq Inc.]
3998 *) Work around for Netscape hang bug. This sends certificate request
3999 and server done in one record. Since this is perfectly legal in the
4000 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4001 the bugs/SSLv3 entry for more info.
4004 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4007 *) Add -rand argument to smime and pkcs12 applications and read/write
4011 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4014 *) Add command line password options to the remaining applications.
4017 *) Bug fix for BN_div_recp() for numerators with an even number of
4021 *) More tests in bntest.c, and changed test_bn output.
4024 *) ./config recognizes MacOS X now.
4027 *) Bug fix for BN_div() when the first words of num and divsor are
4028 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4031 *) Add support for various broken PKCS#8 formats, and command line
4032 options to produce them.
4035 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4036 get temporary BIGNUMs from a BN_CTX.
4039 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4043 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4044 include a #define from the old name to the new. The original intent
4045 was that statically linked binaries could for example just call
4046 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4047 link with digests. This never worked becayse SSLeay_add_all_digests()
4048 and SSLeay_add_all_ciphers() were in the same source file so calling
4049 one would link with the other. They are now in separate source files.
4052 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4055 *) Use a less unusual form of the Miller-Rabin primality test (it used
4056 a binary algorithm for exponentiation integrated into the Miller-Rabin
4057 loop, our standard modexp algorithms are faster).
4060 *) Support for the EBCDIC character set completed.
4061 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4063 *) Source code cleanups: use const where appropriate, eliminate casts,
4064 use void * instead of char * in lhash.
4067 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4068 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4069 this the server could overwrite ephemeral keys that the client
4073 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4074 using 50 iterations of the Rabin-Miller test.
4076 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4077 iterations of the Rabin-Miller test as required by the appendix
4078 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4079 As BN_is_prime_fasttest includes trial division, DSA parameter
4080 generation becomes much faster.
4082 This implies a change for the callback functions in DSA_is_prime
4083 and DSA_generate_parameters: The callback function is called once
4084 for each positive witness in the Rabin-Miller test, not just
4085 occasionally in the inner loop; and the parameters to the
4086 callback function now provide an iteration count for the outer
4087 loop rather than for the current invocation of the inner loop.
4088 DSA_generate_parameters additionally can call the callback
4089 function with an 'iteration count' of -1, meaning that a
4090 candidate has passed the trial division test (when q is generated
4091 from an application-provided seed, trial division is skipped).
4094 *) New function BN_is_prime_fasttest that optionally does trial
4095 division before starting the Rabin-Miller test and has
4096 an additional BN_CTX * argument (whereas BN_is_prime always
4097 has to allocate at least one BN_CTX).
4098 'callback(1, -1, cb_arg)' is called when a number has passed the
4099 trial division stage.
4102 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4106 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4109 *) New function BN_pseudo_rand().
4112 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4113 bignum version of BN_from_montgomery() with the working code from
4114 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4118 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4119 made it impossible to use the same SSL_SESSION data structure in
4120 SSL2 clients in multiple threads.
4123 *) The return value of RAND_load_file() no longer counts bytes obtained
4124 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4125 to seed the PRNG (previously an explicit byte count was required).
4126 [Ulf Möller, Bodo Möller]
4128 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4129 used (char *) instead of (void *) and had casts all over the place.
4132 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4135 *) Retain source code compatibility for BN_prime_checks macro:
4136 BN_is_prime(..., BN_prime_checks, ...) now uses
4137 BN_prime_checks_for_size to determine the appropriate number of
4138 Rabin-Miller iterations.
4141 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4142 DH_CHECK_P_NOT_SAFE_PRIME.
4143 (Check if this is true? OpenPGP calls them "strong".)
4146 *) Merge the functionality of "dh" and "gendh" programs into a new program
4147 "dhparam". The old programs are retained for now but will handle DH keys
4148 (instead of parameters) in future.
4151 *) Make the ciphers, s_server and s_client programs check the return values
4152 when a new cipher list is set.
4155 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4156 ciphers. Before when the 56bit ciphers were enabled the sorting was
4159 The syntax for the cipher sorting has been extended to support sorting by
4160 cipher-strength (using the strength_bits hard coded in the tables).
4161 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4163 Fix a bug in the cipher-command parser: when supplying a cipher command
4164 string with an "undefined" symbol (neither command nor alphanumeric
4165 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4166 an error is flagged.
4168 Due to the strength-sorting extension, the code of the
4169 ssl_create_cipher_list() function was completely rearranged. I hope that
4170 the readability was also increased :-)
4171 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4173 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4174 for the first serial number and places 2 in the serial number file. This
4175 avoids problems when the root CA is created with serial number zero and
4176 the first user certificate has the same issuer name and serial number
4180 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4181 the new code. Add documentation for this stuff.
4184 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4185 X509_*() to X509at_*() on the grounds that they don't handle X509
4186 structures and behave in an analagous way to the X509v3 functions:
4187 they shouldn't be called directly but wrapper functions should be used
4190 So we also now have some wrapper functions that call the X509at functions
4191 when passed certificate requests. (TO DO: similar things can be done with
4192 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4193 things. Some of these need some d2i or i2d and print functionality
4194 because they handle more complex structures.)
4197 *) Add missing #ifndefs that caused missing symbols when building libssl
4198 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4199 NO_RSA in ssl/s2*.c.
4200 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4202 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4203 has a return value which indicates the quality of the random data
4204 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4205 error queue. New function RAND_pseudo_bytes() generates output that is
4206 guaranteed to be unique but not unpredictable. RAND_add is like
4207 RAND_seed, but takes an extra argument for an entropy estimate
4208 (RAND_seed always assumes full entropy).
4211 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4212 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4213 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4214 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4215 false-positive rate of at most 2^-80 for random input.
4218 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4221 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4222 in the 0.9.5 release), this returns the chain
4223 from an X509_CTX structure with a dup of the stack and all
4224 the X509 reference counts upped: so the stack will exist
4225 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4228 Also make SSL_SESSION_print() print out the verify return
4232 *) Add manpage for the pkcs12 command. Also change the default
4233 behaviour so MAC iteration counts are used unless the new
4234 -nomaciter option is used. This improves file security and
4235 only older versions of MSIE (4.0 for example) need it.
4238 *) Honor the no-xxx Configure options when creating .DEF files.
4241 *) Add PKCS#10 attributes to field table: challengePassword,
4242 unstructuredName and unstructuredAddress. These are taken from
4243 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4244 international characters are used.
4246 More changes to X509_ATTRIBUTE code: allow the setting of types
4247 based on strings. Remove the 'loc' parameter when adding
4248 attributes because these will be a SET OF encoding which is sorted
4252 *) Initial changes to the 'req' utility to allow request generation
4253 automation. This will allow an application to just generate a template
4254 file containing all the field values and have req construct the
4257 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4258 used all over the place including certificate requests and PKCS#7
4259 structures. They are currently handled manually where necessary with
4260 some primitive wrappers for PKCS#7. The new functions behave in a
4261 manner analogous to the X509 extension functions: they allow
4262 attributes to be looked up by NID and added.
4264 Later something similar to the X509V3 code would be desirable to
4265 automatically handle the encoding, decoding and printing of the
4266 more complex types. The string types like challengePassword can
4267 be handled by the string table functions.
4269 Also modified the multi byte string table handling. Now there is
4270 a 'global mask' which masks out certain types. The table itself
4271 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4272 is useful when for example there is only one permissible type
4273 (as in countryName) and using the mask might result in no valid
4277 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4278 SSL_get_peer_finished to allow applications to obtain the latest
4279 Finished messages sent to the peer or expected from the peer,
4280 respectively. (SSL_get_peer_finished is usually the Finished message
4281 actually received from the peer, otherwise the protocol will be aborted.)
4283 As the Finished message are message digests of the complete handshake
4284 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4285 be used for external authentication procedures when the authentication
4286 provided by SSL/TLS is not desired or is not enough.
4289 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4290 the host supports BWX extension and if Compaq C is present on the
4291 $PATH. Just exploiting of the BWX extension results in 20-30%
4292 performance kick for some algorithms, e.g. DES and RC4 to mention
4293 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4297 *) Add support for MS "fast SGC". This is arguably a violation of the
4298 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4299 weak crypto and after checking the certificate is SGC a second one
4300 with strong crypto. MS SGC stops the first handshake after receiving
4301 the server certificate message and sends a second client hello. Since
4302 a server will typically do all the time consuming operations before
4303 expecting any further messages from the client (server key exchange
4304 is the most expensive) there is little difference between the two.
4306 To get OpenSSL to support MS SGC we have to permit a second client
4307 hello message after we have sent server done. In addition we have to
4308 reset the MAC if we do get this second client hello.
4311 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4312 if a DER encoded private key is RSA or DSA traditional format. Changed
4313 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4314 format DER encoded private key. Newer code should use PKCS#8 format which
4315 has the key type encoded in the ASN1 structure. Added DER private key
4316 support to pkcs8 application.
4319 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4320 ciphersuites has been selected (as required by the SSL 3/TLS 1
4321 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4322 is set, we interpret this as a request to violate the specification
4323 (the worst that can happen is a handshake failure, and 'correct'
4324 behaviour would result in a handshake failure anyway).
4327 *) In SSL_CTX_add_session, take into account that there might be multiple
4328 SSL_SESSION structures with the same session ID (e.g. when two threads
4329 concurrently obtain them from an external cache).
4330 The internal cache can handle only one SSL_SESSION with a given ID,
4331 so if there's a conflict, we now throw out the old one to achieve
4335 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4336 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4337 some routines that use cipher OIDs: some ciphers do not have OIDs
4338 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4342 *) Simplify the trust setting structure and code. Now we just have
4343 two sequences of OIDs for trusted and rejected settings. These will
4344 typically have values the same as the extended key usage extension
4345 and any application specific purposes.
4347 The trust checking code now has a default behaviour: it will just
4348 check for an object with the same NID as the passed id. Functions can
4349 be provided to override either the default behaviour or the behaviour
4350 for a given id. SSL client, server and email already have functions
4351 in place for compatibility: they check the NID and also return "trusted"
4352 if the certificate is self signed.
4355 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
4356 traditional format into an EVP_PKEY structure.
4359 *) Add a password callback function PEM_cb() which either prompts for
4360 a password if usr_data is NULL or otherwise assumes it is a null
4361 terminated password. Allow passwords to be passed on command line
4362 environment or config files in a few more utilities.
4365 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
4366 keys. Add some short names for PKCS#8 PBE algorithms and allow them
4367 to be specified on the command line for the pkcs8 and pkcs12 utilities.
4368 Update documentation.
4371 *) Support for ASN1 "NULL" type. This could be handled before by using
4372 ASN1_TYPE but there wasn't any function that would try to read a NULL
4373 and produce an error if it couldn't. For compatibility we also have
4374 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
4375 don't allocate anything because they don't need to.
4378 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
4380 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
4382 *) Rebuild of the memory allocation routines used by OpenSSL code and
4383 possibly others as well. The purpose is to make an interface that
4384 provide hooks so anyone can build a separate set of allocation and
4385 deallocation routines to be used by OpenSSL, for example memory
4386 pool implementations, or something else, which was previously hard
4387 since Malloc(), Realloc() and Free() were defined as macros having
4388 the values malloc, realloc and free, respectively (except for Win32
4389 compilations). The same is provided for memory debugging code.
4390 OpenSSL already comes with functionality to find memory leaks, but
4391 this gives people a chance to debug other memory problems.
4393 With these changes, a new set of functions and macros have appeared:
4395 CRYPTO_set_mem_debug_functions() [F]
4396 CRYPTO_get_mem_debug_functions() [F]
4397 CRYPTO_dbg_set_options() [F]
4398 CRYPTO_dbg_get_options() [F]
4399 CRYPTO_malloc_debug_init() [M]
4401 The memory debug functions are NULL by default, unless the library
4402 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
4403 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
4404 gives the standard debugging functions that come with OpenSSL) or
4405 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
4406 provided by the library user) must be used. When the standard
4407 debugging functions are used, CRYPTO_dbg_set_options can be used to
4408 request additional information:
4409 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
4410 the CRYPTO_MDEBUG_xxx macro when compiling the library.
4412 Also, things like CRYPTO_set_mem_functions will always give the
4413 expected result (the new set of functions is used for allocation
4414 and deallocation) at all times, regardless of platform and compiler
4417 To finish it up, some functions that were never use in any other
4418 way than through macros have a new API and new semantic:
4421 CRYPTO_dbg_realloc()
4424 All macros of value have retained their old syntax.
4425 [Richard Levitte and Bodo Moeller]
4427 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
4428 ordering of SMIMECapabilities wasn't in "strength order" and there
4429 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
4433 *) Some ASN1 types with illegal zero length encoding (INTEGER,
4434 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
4435 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
4437 *) Merge in my S/MIME library for OpenSSL. This provides a simple
4438 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
4439 functionality to handle multipart/signed properly) and a utility
4440 called 'smime' to call all this stuff. This is based on code I
4441 originally wrote for Celo who have kindly allowed it to be
4442 included in OpenSSL.
4445 *) Add variants des_set_key_checked and des_set_key_unchecked of
4446 des_set_key (aka des_key_sched). Global variable des_check_key
4447 decides which of these is called by des_set_key; this way
4448 des_check_key behaves as it always did, but applications and
4449 the library itself, which was buggy for des_check_key == 1,
4450 have a cleaner way to pick the version they need.
4453 *) New function PKCS12_newpass() which changes the password of a
4457 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
4458 dynamic mix. In both cases the ids can be used as an index into the
4459 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
4460 functions so they accept a list of the field values and the
4461 application doesn't need to directly manipulate the X509_TRUST
4465 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
4469 *) Modify the way the V3 extension code looks up extensions. This now
4470 works in a similar way to the object code: we have some "standard"
4471 extensions in a static table which is searched with OBJ_bsearch()
4472 and the application can add dynamic ones if needed. The file
4473 crypto/x509v3/ext_dat.h now has the info: this file needs to be
4474 updated whenever a new extension is added to the core code and kept
4475 in ext_nid order. There is a simple program 'tabtest.c' which checks
4476 this. New extensions are not added too often so this file can readily
4477 be maintained manually.
4479 There are two big advantages in doing things this way. The extensions
4480 can be looked up immediately and no longer need to be "added" using
4481 X509V3_add_standard_extensions(): this function now does nothing.
4482 [Side note: I get *lots* of email saying the extension code doesn't
4483 work because people forget to call this function]
4484 Also no dynamic allocation is done unless new extensions are added:
4485 so if we don't add custom extensions there is no need to call
4486 X509V3_EXT_cleanup().
4489 *) Modify enc utility's salting as follows: make salting the default. Add a
4490 magic header, so unsalted files fail gracefully instead of just decrypting
4491 to garbage. This is because not salting is a big security hole, so people
4492 should be discouraged from doing it.
4495 *) Fixes and enhancements to the 'x509' utility. It allowed a message
4496 digest to be passed on the command line but it only used this
4497 parameter when signing a certificate. Modified so all relevant
4498 operations are affected by the digest parameter including the
4499 -fingerprint and -x509toreq options. Also -x509toreq choked if a
4500 DSA key was used because it didn't fix the digest.
4503 *) Initial certificate chain verify code. Currently tests the untrusted
4504 certificates for consistency with the verify purpose (which is set
4505 when the X509_STORE_CTX structure is set up) and checks the pathlength.
4507 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
4508 this is because it will reject chains with invalid extensions whereas
4509 every previous version of OpenSSL and SSLeay made no checks at all.
4511 Trust code: checks the root CA for the relevant trust settings. Trust
4512 settings have an initial value consistent with the verify purpose: e.g.
4513 if the verify purpose is for SSL client use it expects the CA to be
4514 trusted for SSL client use. However the default value can be changed to
4515 permit custom trust settings: one example of this would be to only trust
4516 certificates from a specific "secure" set of CAs.
4518 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
4519 which should be used for version portability: especially since the
4520 verify structure is likely to change more often now.
4522 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
4523 to set them. If not set then assume SSL clients will verify SSL servers
4526 Two new options to the verify program: -untrusted allows a set of
4527 untrusted certificates to be passed in and -purpose which sets the
4528 intended purpose of the certificate. If a purpose is set then the
4529 new chain verify code is used to check extension consistency.
4532 *) Support for the authority information access extension.
4535 *) Modify RSA and DSA PEM read routines to transparently handle
4536 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
4537 public keys in a format compatible with certificate
4538 SubjectPublicKeyInfo structures. Unfortunately there were already
4539 functions called *_PublicKey_* which used various odd formats so
4540 these are retained for compatibility: however the DSA variants were
4541 never in a public release so they have been deleted. Changed dsa/rsa
4542 utilities to handle the new format: note no releases ever handled public
4543 keys so we should be OK.
4545 The primary motivation for this change is to avoid the same fiasco
4546 that dogs private keys: there are several incompatible private key
4547 formats some of which are standard and some OpenSSL specific and
4548 require various evil hacks to allow partial transparent handling and
4549 even then it doesn't work with DER formats. Given the option anything
4550 other than PKCS#8 should be dumped: but the other formats have to
4551 stay in the name of compatibility.
4553 With public keys and the benefit of hindsight one standard format
4554 is used which works with EVP_PKEY, RSA or DSA structures: though
4555 it clearly returns an error if you try to read the wrong kind of key.
4557 Added a -pubkey option to the 'x509' utility to output the public key.
4558 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
4559 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
4560 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
4561 that do the same as the EVP_PKEY_assign_*() except they up the
4562 reference count of the added key (they don't "swallow" the
4566 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
4567 CRLs would fail if the file contained no certificates or no CRLs:
4568 added a new function to read in both types and return the number
4569 read: this means that if none are read it will be an error. The
4570 DER versions of the certificate and CRL reader would always fail
4571 because it isn't possible to mix certificates and CRLs in DER format
4572 without choking one or the other routine. Changed this to just read
4573 a certificate: this is the best we can do. Also modified the code
4574 in apps/verify.c to take notice of return codes: it was previously
4575 attempting to read in certificates from NULL pointers and ignoring
4576 any errors: this is one reason why the cert and CRL reader seemed
4577 to work. It doesn't check return codes from the default certificate
4578 routines: these may well fail if the certificates aren't installed.
4581 *) Code to support otherName option in GeneralName.
4584 *) First update to verify code. Change the verify utility
4585 so it warns if it is passed a self signed certificate:
4586 for consistency with the normal behaviour. X509_verify
4587 has been modified to it will now verify a self signed
4588 certificate if *exactly* the same certificate appears
4589 in the store: it was previously impossible to trust a
4590 single self signed certificate. This means that:
4591 openssl verify ss.pem
4592 now gives a warning about a self signed certificate but
4593 openssl verify -CAfile ss.pem ss.pem
4597 *) For servers, store verify_result in SSL_SESSION data structure
4598 (and add it to external session representation).
4599 This is needed when client certificate verifications fails,
4600 but an application-provided verification callback (set by
4601 SSL_CTX_set_cert_verify_callback) allows accepting the session
4602 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
4603 but returns 1): When the session is reused, we have to set
4604 ssl->verify_result to the appropriate error code to avoid
4606 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
4608 *) Fix a bug in the new PKCS#7 code: it didn't consider the
4609 case in PKCS7_dataInit() where the signed PKCS7 structure
4610 didn't contain any existing data because it was being created.
4611 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
4613 *) Add a salt to the key derivation routines in enc.c. This
4614 forms the first 8 bytes of the encrypted file. Also add a
4615 -S option to allow a salt to be input on the command line.
4618 *) New function X509_cmp(). Oddly enough there wasn't a function
4619 to compare two certificates. We do this by working out the SHA1
4620 hash and comparing that. X509_cmp() will be needed by the trust
4624 *) SSL_get1_session() is like SSL_get_session(), but increments
4625 the reference count in the SSL_SESSION returned.
4626 [Geoff Thorpe <geoff@eu.c2.net>]
4628 *) Fix for 'req': it was adding a null to request attributes.
4629 Also change the X509_LOOKUP and X509_INFO code to handle
4630 certificate auxiliary information.
4633 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
4637 *) Add the possibility to add extra information to the memory leak
4638 detecting output, to form tracebacks, showing from where each
4639 allocation was originated: CRYPTO_push_info("constant string") adds
4640 the string plus current file name and line number to a per-thread
4641 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
4642 is like calling CYRPTO_pop_info() until the stack is empty.
4643 Also updated memory leak detection code to be multi-thread-safe.
4646 *) Add options -text and -noout to pkcs7 utility and delete the
4647 encryption options which never did anything. Update docs.
4650 *) Add options to some of the utilities to allow the pass phrase
4651 to be included on either the command line (not recommended on
4652 OSes like Unix) or read from the environment. Update the
4653 manpages and fix a few bugs.
4656 *) Add a few manpages for some of the openssl commands.
4659 *) Fix the -revoke option in ca. It was freeing up memory twice,
4660 leaking and not finding already revoked certificates.
4663 *) Extensive changes to support certificate auxiliary information.
4664 This involves the use of X509_CERT_AUX structure and X509_AUX
4665 functions. An X509_AUX function such as PEM_read_X509_AUX()
4666 can still read in a certificate file in the usual way but it
4667 will also read in any additional "auxiliary information". By
4668 doing things this way a fair degree of compatibility can be
4669 retained: existing certificates can have this information added
4670 using the new 'x509' options.
4672 Current auxiliary information includes an "alias" and some trust
4673 settings. The trust settings will ultimately be used in enhanced
4674 certificate chain verification routines: currently a certificate
4675 can only be trusted if it is self signed and then it is trusted
4679 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
4680 The problem was that one of the replacement routines had not been working
4681 since SSLeay releases. For now the offending routine has been replaced
4682 with non-optimised assembler. Even so, this now gives around 95%
4683 performance improvement for 1024 bit RSA signs.
4686 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
4687 handling. Most clients have the effective key size in bits equal to
4688 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
4689 A few however don't do this and instead use the size of the decrypted key
4690 to determine the RC2 key length and the AlgorithmIdentifier to determine
4691 the effective key length. In this case the effective key length can still
4692 be 40 bits but the key length can be 168 bits for example. This is fixed
4693 by manually forcing an RC2 key into the EVP_PKEY structure because the
4694 EVP code can't currently handle unusual RC2 key sizes: it always assumes
4695 the key length and effective key length are equal.
4698 *) Add a bunch of functions that should simplify the creation of
4699 X509_NAME structures. Now you should be able to do:
4700 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
4701 and have it automatically work out the correct field type and fill in
4702 the structures. The more adventurous can try:
4703 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
4704 and it will (hopefully) work out the correct multibyte encoding.
4707 *) Change the 'req' utility to use the new field handling and multibyte
4708 copy routines. Before the DN field creation was handled in an ad hoc
4709 way in req, ca, and x509 which was rather broken and didn't support
4710 BMPStrings or UTF8Strings. Since some software doesn't implement
4711 BMPStrings or UTF8Strings yet, they can be enabled using the config file
4712 using the dirstring_type option. See the new comment in the default
4713 openssl.cnf for more info.
4716 *) Make crypto/rand/md_rand.c more robust:
4717 - Assure unique random numbers after fork().
4718 - Make sure that concurrent threads access the global counter and
4719 md serializably so that we never lose entropy in them
4720 or use exactly the same state in multiple threads.
4721 Access to the large state is not always serializable because
4722 the additional locking could be a performance killer, and
4723 md should be large enough anyway.
4726 *) New file apps/app_rand.c with commonly needed functionality
4727 for handling the random seed file.
4729 Use the random seed file in some applications that previously did not:
4731 dsaparam -genkey (which also ignored its '-rand' option),
4734 x509 (when signing).
4735 Except on systems with /dev/urandom, it is crucial to have a random
4736 seed file at least for key creation, DSA signing, and for DH exchanges;
4737 for RSA signatures we could do without one.
4739 gendh and gendsa (unlike genrsa) used to read only the first byte
4740 of each file listed in the '-rand' option. The function as previously
4741 found in genrsa is now in app_rand.c and is used by all programs
4742 that support '-rand'.
4745 *) In RAND_write_file, use mode 0600 for creating files;
4746 don't just chmod when it may be too late.
4749 *) Report an error from X509_STORE_load_locations
4750 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
4753 *) New function ASN1_mbstring_copy() this copies a string in either
4754 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
4755 into an ASN1_STRING type. A mask of permissible types is passed
4756 and it chooses the "minimal" type to use or an error if not type
4760 *) Add function equivalents to the various macros in asn1.h. The old
4761 macros are retained with an M_ prefix. Code inside the library can
4762 use the M_ macros. External code (including the openssl utility)
4763 should *NOT* in order to be "shared library friendly".
4766 *) Add various functions that can check a certificate's extensions
4767 to see if it usable for various purposes such as SSL client,
4768 server or S/MIME and CAs of these types. This is currently
4769 VERY EXPERIMENTAL but will ultimately be used for certificate chain
4770 verification. Also added a -purpose flag to x509 utility to
4771 print out all the purposes.
4774 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
4778 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
4779 for, obtain and decode and extension and obtain its critical flag.
4780 This allows all the necessary extension code to be handled in a
4781 single function call.
4784 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
4785 platforms. See crypto/rc4/rc4_enc.c for further details.
4788 *) New -noout option to asn1parse. This causes no output to be produced
4789 its main use is when combined with -strparse and -out to extract data
4790 from a file (which may not be in ASN.1 format).
4793 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
4794 when producing the local key id.
4795 [Richard Levitte <levitte@stacken.kth.se>]
4797 *) New option -dhparam in s_server. This allows a DH parameter file to be
4798 stated explicitly. If it is not stated then it tries the first server
4799 certificate file. The previous behaviour hard coded the filename
4803 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
4804 a public key to be input or output. For example:
4805 openssl rsa -in key.pem -pubout -out pubkey.pem
4806 Also added necessary DSA public key functions to handle this.
4809 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
4810 in the message. This was handled by allowing
4811 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
4812 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
4814 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
4815 to the end of the strings whereas this didn't. This would cause problems
4816 if strings read with d2i_ASN1_bytes() were later modified.
4817 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
4819 *) Fix for base64 decode bug. When a base64 bio reads only one line of
4820 data and it contains EOF it will end up returning an error. This is
4821 caused by input 46 bytes long. The cause is due to the way base64
4822 BIOs find the start of base64 encoded data. They do this by trying a
4823 trial decode on each line until they find one that works. When they
4824 do a flag is set and it starts again knowing it can pass all the
4825 data directly through the decoder. Unfortunately it doesn't reset
4826 the context it uses. This means that if EOF is reached an attempt
4827 is made to pass two EOFs through the context and this causes the
4828 resulting error. This can also cause other problems as well. As is
4829 usual with these problems it takes *ages* to find and the fix is
4830 trivial: move one line.
4831 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
4833 *) Ugly workaround to get s_client and s_server working under Windows. The
4834 old code wouldn't work because it needed to select() on sockets and the
4835 tty (for keypresses and to see if data could be written). Win32 only
4836 supports select() on sockets so we select() with a 1s timeout on the
4837 sockets and then see if any characters are waiting to be read, if none
4838 are present then we retry, we also assume we can always write data to
4839 the tty. This isn't nice because the code then blocks until we've
4840 received a complete line of data and it is effectively polling the
4841 keyboard at 1s intervals: however it's quite a bit better than not
4842 working at all :-) A dedicated Windows application might handle this
4843 with an event loop for example.
4846 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
4847 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
4848 will be called when RSA_sign() and RSA_verify() are used. This is useful
4849 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
4850 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
4851 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
4852 This necessitated the support of an extra signature type NID_md5_sha1
4853 for SSL signatures and modifications to the SSL library to use it instead
4854 of calling RSA_public_decrypt() and RSA_private_encrypt().
4857 *) Add new -verify -CAfile and -CApath options to the crl program, these
4858 will lookup a CRL issuers certificate and verify the signature in a
4859 similar way to the verify program. Tidy up the crl program so it
4860 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
4861 less strict. It will now permit CRL extensions even if it is not
4862 a V2 CRL: this will allow it to tolerate some broken CRLs.
4865 *) Initialize all non-automatic variables each time one of the openssl
4866 sub-programs is started (this is necessary as they may be started
4867 multiple times from the "OpenSSL>" prompt).
4868 [Lennart Bang, Bodo Moeller]
4870 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
4871 removing all other RSA functionality (this is what NO_RSA does). This
4872 is so (for example) those in the US can disable those operations covered
4873 by the RSA patent while allowing storage and parsing of RSA keys and RSA
4877 *) Non-copying interface to BIO pairs.
4878 (still largely untested)
4881 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
4882 ASCII string. This was handled independently in various places before.
4885 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
4886 UTF8 strings a character at a time.
4889 *) Use client_version from client hello to select the protocol
4890 (s23_srvr.c) and for RSA client key exchange verification
4891 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
4894 *) Add various utility functions to handle SPKACs, these were previously
4895 handled by poking round in the structure internals. Added new function
4896 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
4897 print, verify and generate SPKACs. Based on an original idea from
4898 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
4901 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
4904 *) Allow the config file extension section to be overwritten on the
4905 command line. Based on an original idea from Massimiliano Pala
4906 <madwolf@comune.modena.it>. The new option is called -extensions
4907 and can be applied to ca, req and x509. Also -reqexts to override
4908 the request extensions in req and -crlexts to override the crl extensions
4912 *) Add new feature to the SPKAC handling in ca. Now you can include
4913 the same field multiple times by preceding it by "XXXX." for example:
4916 this is the same syntax as used in the req config file.
4919 *) Allow certificate extensions to be added to certificate requests. These
4920 are specified in a 'req_extensions' option of the req section of the
4921 config file. They can be printed out with the -text option to req but
4922 are otherwise ignored at present.
4925 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
4926 data read consists of only the final block it would not decrypted because
4927 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
4928 A misplaced 'break' also meant the decrypted final block might not be
4929 copied until the next read.
4932 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
4933 a few extra parameters to the DH structure: these will be useful if
4934 for example we want the value of 'q' or implement X9.42 DH.
4937 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
4938 provides hooks that allow the default DSA functions or functions on a
4939 "per key" basis to be replaced. This allows hardware acceleration and
4940 hardware key storage to be handled without major modification to the
4941 library. Also added low level modexp hooks and CRYPTO_EX structure and
4942 associated functions.
4945 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
4946 as "read only": it can't be written to and the buffer it points to will
4947 not be freed. Reading from a read only BIO is much more efficient than
4948 a normal memory BIO. This was added because there are several times when
4949 an area of memory needs to be read from a BIO. The previous method was
4950 to create a memory BIO and write the data to it, this results in two
4951 copies of the data and an O(n^2) reading algorithm. There is a new
4952 function BIO_new_mem_buf() which creates a read only memory BIO from
4953 an area of memory. Also modified the PKCS#7 routines to use read only
4957 *) Bugfix: ssl23_get_client_hello did not work properly when called in
4958 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
4959 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
4960 but a retry condition occured while trying to read the rest.
4963 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
4964 NID_pkcs7_encrypted by default: this was wrong since this should almost
4965 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
4966 the encrypted data type: this is a more sensible place to put it and it
4967 allows the PKCS#12 code to be tidied up that duplicated this
4971 *) Changed obj_dat.pl script so it takes its input and output files on
4972 the command line. This should avoid shell escape redirection problems
4976 *) Initial support for certificate extension requests, these are included
4977 in things like Xenroll certificate requests. Included functions to allow
4978 extensions to be obtained and added.
4981 *) -crlf option to s_client and s_server for sending newlines as
4982 CRLF (as required by many protocols).
4985 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
4987 *) Install libRSAglue.a when OpenSSL is built with RSAref.
4988 [Ralf S. Engelschall]
4990 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
4991 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
4993 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
4997 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
4998 DH parameters/keys (q is lost during that conversion, but the resulting
4999 DH parameters contain its length).
5001 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5002 much faster than DH_generate_parameters (which creates parameters
5003 where p = 2*q + 1), and also the smaller q makes DH computations
5004 much more efficient (160-bit exponentiation instead of 1024-bit
5005 exponentiation); so this provides a convenient way to support DHE
5006 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5007 utter importance to use
5008 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5010 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5011 when such DH parameters are used, because otherwise small subgroup
5012 attacks may become possible!
5015 *) Avoid memory leak in i2d_DHparams.
5018 *) Allow the -k option to be used more than once in the enc program:
5019 this allows the same encrypted message to be read by multiple recipients.
5022 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5023 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5024 it will always use the numerical form of the OID, even if it has a short
5028 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5029 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5030 otherwise bn_mod_exp was called. In the case of hardware keys for example
5031 no private key components need be present and it might store extra data
5032 in the RSA structure, which cannot be accessed from bn_mod_exp.
5033 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5034 private key operations.
5037 *) Added support for SPARC Linux.
5040 *) pem_password_cb function type incompatibly changed from
5041 typedef int pem_password_cb(char *buf, int size, int rwflag);
5043 ....(char *buf, int size, int rwflag, void *userdata);
5044 so that applications can pass data to their callbacks:
5045 The PEM[_ASN1]_{read,write}... functions and macros now take an
5046 additional void * argument, which is just handed through whenever
5047 the password callback is called.
5048 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5050 New function SSL_CTX_set_default_passwd_cb_userdata.
5052 Compatibility note: As many C implementations push function arguments
5053 onto the stack in reverse order, the new library version is likely to
5054 interoperate with programs that have been compiled with the old
5055 pem_password_cb definition (PEM_whatever takes some data that
5056 happens to be on the stack as its last argument, and the callback
5057 just ignores this garbage); but there is no guarantee whatsoever that
5060 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5061 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5062 problems not only on Windows, but also on some Unix platforms.
5063 To avoid problematic command lines, these definitions are now in an
5064 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5065 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5068 *) MIPS III/IV assembler module is reimplemented.
5071 *) More DES library cleanups: remove references to srand/rand and
5072 delete an unused file.
5075 *) Add support for the the free Netwide assembler (NASM) under Win32,
5076 since not many people have MASM (ml) and it can be hard to obtain.
5077 This is currently experimental but it seems to work OK and pass all
5078 the tests. Check out INSTALL.W32 for info.
5081 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5082 without temporary keys kept an extra copy of the server key,
5083 and connections with temporary keys did not free everything in case
5087 *) New function RSA_check_key and new openssl rsa option -check
5088 for verifying the consistency of RSA keys.
5089 [Ulf Moeller, Bodo Moeller]
5091 *) Various changes to make Win32 compile work:
5092 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5093 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5094 comparison" warnings.
5095 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5098 *) Add a debugging option to PKCS#5 v2 key generation function: when
5099 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5100 derived keys are printed to stderr.
5103 *) Copy the flags in ASN1_STRING_dup().
5104 [Roman E. Pavlov <pre@mo.msk.ru>]
5106 *) The x509 application mishandled signing requests containing DSA
5107 keys when the signing key was also DSA and the parameters didn't match.
5109 It was supposed to omit the parameters when they matched the signing key:
5110 the verifying software was then supposed to automatically use the CA's
5111 parameters if they were absent from the end user certificate.
5113 Omitting parameters is no longer recommended. The test was also
5114 the wrong way round! This was probably due to unusual behaviour in
5115 EVP_cmp_parameters() which returns 1 if the parameters match.
5116 This meant that parameters were omitted when they *didn't* match and
5117 the certificate was useless. Certificates signed with 'ca' didn't have
5119 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5121 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5122 The interface is as follows:
5123 Applications can use
5124 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5125 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5126 "off" is now the default.
5127 The library internally uses
5128 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5129 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5130 to disable memory-checking temporarily.
5132 Some inconsistent states that previously were possible (and were
5133 even the default) are now avoided.
5135 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5136 with each memory chunk allocated; this is occasionally more helpful
5137 than just having a counter.
5139 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5141 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5145 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5146 which largely parallels "options", but is for changing API behaviour,
5147 whereas "options" are about protocol behaviour.
5148 Initial "mode" flags are:
5150 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5151 a single record has been written.
5152 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5153 retries use the same buffer location.
5154 (But all of the contents must be
5158 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5161 *) Fix problems with no-hmac etc.
5162 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5164 *) New functions RSA_get_default_method(), RSA_set_method() and
5165 RSA_get_method(). These allows replacement of RSA_METHODs without having
5166 to mess around with the internals of an RSA structure.
5169 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5170 Also really enable memory leak checks in openssl.c and in some
5172 [Chad C. Mulligan, Bodo Moeller]
5174 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5175 up the length of negative integers. This has now been simplified to just
5176 store the length when it is first determined and use it later, rather
5177 than trying to keep track of where data is copied and updating it to
5179 [Steve Henson, reported by Brien Wheeler
5180 <bwheeler@authentica-security.com>]
5182 *) Add a new function PKCS7_signatureVerify. This allows the verification
5183 of a PKCS#7 signature but with the signing certificate passed to the
5184 function itself. This contrasts with PKCS7_dataVerify which assumes the
5185 certificate is present in the PKCS#7 structure. This isn't always the
5186 case: certificates can be omitted from a PKCS#7 structure and be
5187 distributed by "out of band" means (such as a certificate database).
5190 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5191 function prototypes in pem.h, also change util/mkdef.pl to add the
5192 necessary function names.
5195 *) mk1mf.pl (used by Windows builds) did not properly read the
5196 options set by Configure in the top level Makefile, and Configure
5197 was not even able to write more than one option correctly.
5198 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5201 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5202 file to be loaded from a BIO or FILE pointer. The BIO version will
5203 for example allow memory BIOs to contain config info.
5206 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5207 Whoever hopes to achieve shared-library compatibility across versions
5208 must use this, not the compile-time macro.
5209 (Exercise 0.9.4: Which is the minimum library version required by
5211 Note: All this applies only to multi-threaded programs, others don't
5215 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5216 through a BIO pair triggered the default case, i.e.
5217 SSLerr(...,SSL_R_UNKNOWN_STATE).
5220 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5221 can use the SSL library even if none of the specific BIOs is
5225 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5226 for the encoded length.
5227 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5229 *) Add initial documentation of the X509V3 functions.
5232 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5233 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5234 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5235 secure PKCS#8 private key format with a high iteration count.
5238 *) Fix determination of Perl interpreter: A perl or perl5
5239 _directory_ in $PATH was also accepted as the interpreter.
5240 [Ralf S. Engelschall]
5242 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5243 wrong with it but it was very old and did things like calling
5244 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5248 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5249 to use the new extension code.
5252 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5253 with macros. This should make it easier to change their form, add extra
5254 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5258 *) Add to configuration table a new entry that can specify an alternative
5259 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5260 according to Mark Crispin <MRC@Panda.COM>.
5264 *) DES CBC did not update the IV. Weird.
5267 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5268 Changing the behaviour of the former might break existing programs --
5269 where IV updating is needed, des_ncbc_encrypt can be used.
5272 *) When bntest is run from "make test" it drives bc to check its
5273 calculations, as well as internally checking them. If an internal check
5274 fails, it needs to cause bc to give a non-zero result or make test carries
5275 on without noticing the failure. Fixed.
5278 *) DES library cleanups.
5281 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5282 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5283 ciphers. NOTE: although the key derivation function has been verified
5284 against some published test vectors it has not been extensively tested
5285 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5289 *) Instead of "mkdir -p", which is not fully portable, use new
5290 Perl script "util/mkdir-p.pl".
5293 *) Rewrite the way password based encryption (PBE) is handled. It used to
5294 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5295 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5296 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5297 the 'parameter' field of the AlgorithmIdentifier is passed to the
5298 underlying key generation function so it must do its own ASN1 parsing.
5299 This has also changed the EVP_PBE_CipherInit() function which now has a
5300 'parameter' argument instead of literal salt and iteration count values
5301 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5304 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5305 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5306 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5307 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5308 value was just used as a "magic string" and not used directly its
5309 value doesn't matter.
5312 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5316 *) "linux-sparc64" configuration (ultrapenguin).
5317 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5318 "linux-sparc" configuration.
5319 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5321 *) config now generates no-xxx options for missing ciphers.
5324 *) Support the EBCDIC character set (work in progress).
5325 File ebcdic.c not yet included because it has a different license.
5326 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5328 *) Support BS2000/OSD-POSIX.
5329 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5331 *) Make callbacks for key generation use void * instead of char *.
5334 *) Make S/MIME samples compile (not yet tested).
5337 *) Additional typesafe stacks.
5340 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5344 Changes between 0.9.3 and 0.9.3a [29 May 1999]
5346 *) New configuration variant "sco5-gcc".
5348 *) Updated some demos.
5349 [Sean O Riordain, Wade Scholine]
5351 *) Add missing BIO_free at exit of pkcs12 application.
5354 *) Fix memory leak in conf.c.
5357 *) Updates for Win32 to assembler version of MD5.
5360 *) Set #! path to perl in apps/der_chop to where we found it
5361 instead of using a fixed path.
5364 *) SHA library changes for irix64-mips4-cc.
5367 *) Improvements for VMS support.
5371 Changes between 0.9.2b and 0.9.3 [24 May 1999]
5373 *) Bignum library bug fix. IRIX 6 passes "make test" now!
5374 This also avoids the problems with SC4.2 and unpatched SC5.
5375 [Andy Polyakov <appro@fy.chalmers.se>]
5377 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
5378 These are required because of the typesafe stack would otherwise break
5379 existing code. If old code used a structure member which used to be STACK
5380 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
5381 sk_num or sk_value it would produce an error because the num, data members
5382 are not present in STACK_OF. Now it just produces a warning. sk_set
5383 replaces the old method of assigning a value to sk_value
5384 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
5385 that does this will no longer work (and should use sk_set instead) but
5386 this could be regarded as a "questionable" behaviour anyway.
5389 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
5390 correctly handle encrypted S/MIME data.
5393 *) Change type of various DES function arguments from des_cblock
5394 (which means, in function argument declarations, pointer to char)
5395 to des_cblock * (meaning pointer to array with 8 char elements),
5396 which allows the compiler to do more typechecking; it was like
5397 that back in SSLeay, but with lots of ugly casts.
5399 Introduce new type const_des_cblock.
5402 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
5403 problems: find RecipientInfo structure that matches recipient certificate
5404 and initialise the ASN1 structures properly based on passed cipher.
5407 *) Belatedly make the BN tests actually check the results.
5410 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
5411 to and from BNs: it was completely broken. New compilation option
5412 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
5413 key elements as negative integers.
5416 *) Reorganize and speed up MD5.
5417 [Andy Polyakov <appro@fy.chalmers.se>]
5420 [Richard Levitte <richard@levitte.org>]
5422 *) New option -out to asn1parse to allow the parsed structure to be
5423 output to a file. This is most useful when combined with the -strparse
5424 option to examine the output of things like OCTET STRINGS.
5427 *) Make SSL library a little more fool-proof by not requiring any longer
5428 that SSL_set_{accept,connect}_state be called before
5429 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
5430 in many applications because usually everything *appeared* to work as
5431 intended anyway -- now it really works as intended).
5434 *) Move openssl.cnf out of lib/.
5437 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
5438 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
5439 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
5440 [Ralf S. Engelschall]
5442 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
5443 handle PKCS#7 enveloped data properly.
5444 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
5446 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
5447 copying pointers. The cert_st handling is changed by this in
5448 various ways (and thus what used to be known as ctx->default_cert
5449 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
5450 any longer when s->cert does not give us what we need).
5451 ssl_cert_instantiate becomes obsolete by this change.
5452 As soon as we've got the new code right (possibly it already is?),
5453 we have solved a couple of bugs of the earlier code where s->cert
5454 was used as if it could not have been shared with other SSL structures.
5456 Note that using the SSL API in certain dirty ways now will result
5457 in different behaviour than observed with earlier library versions:
5458 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
5459 does not influence s as it used to.
5461 In order to clean up things more thoroughly, inside SSL_SESSION
5462 we don't use CERT any longer, but a new structure SESS_CERT
5463 that holds per-session data (if available); currently, this is
5464 the peer's certificate chain and, for clients, the server's certificate
5465 and temporary key. CERT holds only those values that can have
5466 meaningful defaults in an SSL_CTX.
5469 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
5470 from the internal representation. Various PKCS#7 fixes: remove some
5471 evil casts and set the enc_dig_alg field properly based on the signing
5475 *) Allow PKCS#12 password to be set from the command line or the
5476 environment. Let 'ca' get its config file name from the environment
5477 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
5481 *) Allow certificate policies extension to use an IA5STRING for the
5482 organization field. This is contrary to the PKIX definition but
5483 VeriSign uses it and IE5 only recognises this form. Document 'x509'
5487 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
5488 without disallowing inline assembler and the like for non-pedantic builds.
5491 *) Support Borland C++ builder.
5492 [Janez Jere <jj@void.si>, modified by Ulf Möller]
5497 *) SHA-1 cleanups and performance enhancements.
5498 [Andy Polyakov <appro@fy.chalmers.se>]
5500 *) Sparc v8plus assembler for the bignum library.
5501 [Andy Polyakov <appro@fy.chalmers.se>]
5503 *) Accept any -xxx and +xxx compiler options in Configure.
5506 *) Update HPUX configuration.
5509 *) Add missing sk_<type>_unshift() function to safestack.h
5510 [Ralf S. Engelschall]
5512 *) New function SSL_CTX_use_certificate_chain_file that sets the
5513 "extra_cert"s in addition to the certificate. (This makes sense
5514 only for "PEM" format files, as chains as a whole are not
5518 *) Support verify_depth from the SSL API.
5519 x509_vfy.c had what can be considered an off-by-one-error:
5520 Its depth (which was not part of the external interface)
5521 was actually counting the number of certificates in a chain;
5522 now it really counts the depth.
5525 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
5526 instead of X509err, which often resulted in confusing error
5527 messages since the error codes are not globally unique
5528 (e.g. an alleged error in ssl3_accept when a certificate
5529 didn't match the private key).
5531 *) New function SSL_CTX_set_session_id_context that allows to set a default
5532 value (so that you don't need SSL_set_session_id_context for each
5533 connection using the SSL_CTX).
5536 *) OAEP decoding bug fix.
5539 *) Support INSTALL_PREFIX for package builders, as proposed by
5543 *) New Configure options "threads" and "no-threads". For systems
5544 where the proper compiler options are known (currently Solaris
5545 and Linux), "threads" is the default.
5548 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
5551 *) Install various scripts to $(OPENSSLDIR)/misc, not to
5552 $(INSTALLTOP)/bin -- they shouldn't clutter directories
5553 such as /usr/local/bin.
5556 *) "make linux-shared" to build shared libraries.
5557 [Niels Poppe <niels@netbox.org>]
5559 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
5562 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
5563 extension adding in x509 utility.
5566 *) Remove NOPROTO sections and error code comments.
5569 *) Partial rewrite of the DEF file generator to now parse the ANSI
5573 *) New Configure options --prefix=DIR and --openssldir=DIR.
5576 *) Complete rewrite of the error code script(s). It is all now handled
5577 by one script at the top level which handles error code gathering,
5578 header rewriting and C source file generation. It should be much better
5579 than the old method: it now uses a modified version of Ulf's parser to
5580 read the ANSI prototypes in all header files (thus the old K&R definitions
5581 aren't needed for error creation any more) and do a better job of
5582 translating function codes into names. The old 'ASN1 error code imbedded
5583 in a comment' is no longer necessary and it doesn't use .err files which
5584 have now been deleted. Also the error code call doesn't have to appear all
5585 on one line (which resulted in some large lines...).
5588 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
5591 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
5592 0 (which usually indicates a closed connection), but continue reading.
5595 *) Fix some race conditions.
5598 *) Add support for CRL distribution points extension. Add Certificate
5599 Policies and CRL distribution points documentation.
5602 *) Move the autogenerated header file parts to crypto/opensslconf.h.
5605 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
5606 8 of keying material. Merlin has also confirmed interop with this fix
5607 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
5608 [Merlin Hughes <merlin@baltimore.ie>]
5610 *) Fix lots of warnings.
5611 [Richard Levitte <levitte@stacken.kth.se>]
5613 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
5614 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
5615 [Richard Levitte <levitte@stacken.kth.se>]
5617 *) Fix problems with sizeof(long) == 8.
5618 [Andy Polyakov <appro@fy.chalmers.se>]
5620 *) Change functions to ANSI C.
5623 *) Fix typos in error codes.
5624 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
5626 *) Remove defunct assembler files from Configure.
5629 *) SPARC v8 assembler BIGNUM implementation.
5630 [Andy Polyakov <appro@fy.chalmers.se>]
5632 *) Support for Certificate Policies extension: both print and set.
5633 Various additions to support the r2i method this uses.
5636 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
5637 return a const string when you are expecting an allocated buffer.
5640 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
5641 types DirectoryString and DisplayText.
5644 *) Add code to allow r2i extensions to access the configuration database,
5645 add an LHASH database driver and add several ctx helper functions.
5648 *) Fix an evil bug in bn_expand2() which caused various BN functions to
5649 fail when they extended the size of a BIGNUM.
5652 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
5653 support typesafe stack.
5656 *) Fix typo in SSL_[gs]et_options().
5657 [Nils Frostberg <nils@medcom.se>]
5659 *) Delete various functions and files that belonged to the (now obsolete)
5660 old X509V3 handling code.
5663 *) New Configure option "rsaref".
5666 *) Don't auto-generate pem.h.
5669 *) Introduce type-safe ASN.1 SETs.
5672 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
5673 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
5675 *) Introduce type-safe STACKs. This will almost certainly break lots of code
5676 that links with OpenSSL (well at least cause lots of warnings), but fear
5677 not: the conversion is trivial, and it eliminates loads of evil casts. A
5678 few STACKed things have been converted already. Feel free to convert more.
5679 In the fullness of time, I'll do away with the STACK type altogether.
5682 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
5683 specified in <certfile> by updating the entry in the index.txt file.
5684 This way one no longer has to edit the index.txt file manually for
5685 revoking a certificate. The -revoke option does the gory details now.
5686 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
5688 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
5689 `-text' option at all and this way the `-noout -text' combination was
5690 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
5691 [Ralf S. Engelschall]
5693 *) Make sure a corresponding plain text error message exists for the
5694 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
5695 verify callback function determined that a certificate was revoked.
5696 [Ralf S. Engelschall]
5698 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
5699 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
5700 all available cipers including rc5, which was forgotten until now.
5701 In order to let the testing shell script know which algorithms
5702 are available, a new (up to now undocumented) command
5703 "openssl list-cipher-commands" is used.
5706 *) Bugfix: s_client occasionally would sleep in select() when
5707 it should have checked SSL_pending() first.
5710 *) New functions DSA_do_sign and DSA_do_verify to provide access to
5711 the raw DSA values prior to ASN.1 encoding.
5714 *) Tweaks to Configure
5715 [Niels Poppe <niels@netbox.org>]
5717 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
5721 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
5724 *) New config option to avoid instructions that are illegal on the 80386.
5725 The default code is faster, but requires at least a 486.
5728 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
5729 SSL2_SERVER_VERSION (not used at all) macros, which are now the
5730 same as SSL2_VERSION anyway.
5733 *) New "-showcerts" option for s_client.
5736 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
5737 application. Various cleanups and fixes.
5740 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
5741 modify error routines to work internally. Add error codes and PBE init
5742 to library startup routines.
5745 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
5746 packing functions to asn1 and evp. Changed function names and error
5747 codes along the way.
5750 *) PKCS12 integration: and so it begins... First of several patches to
5751 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
5752 objects to objects.h
5755 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
5756 and display support for Thawte strong extranet extension.
5759 *) Add LinuxPPC support.
5760 [Jeff Dubrule <igor@pobox.org>]
5762 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
5763 bn_div_words in alpha.s.
5764 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
5766 *) Make sure the RSA OAEP test is skipped under -DRSAref because
5767 OAEP isn't supported when OpenSSL is built with RSAref.
5768 [Ulf Moeller <ulf@fitug.de>]
5770 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
5771 so they no longer are missing under -DNOPROTO.
5772 [Soren S. Jorvang <soren@t.dk>]
5775 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
5777 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
5778 doesn't work when the session is reused. Coming soon!
5781 *) Fix a security hole, that allows sessions to be reused in the wrong
5782 context thus bypassing client cert protection! All software that uses
5783 client certs and session caches in multiple contexts NEEDS PATCHING to
5784 allow session reuse! A fuller solution is in the works.
5785 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
5787 *) Some more source tree cleanups (removed obsolete files
5788 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
5789 permission on "config" script to be executable) and a fix for the INSTALL
5791 [Ulf Moeller <ulf@fitug.de>]
5793 *) Remove some legacy and erroneous uses of malloc, free instead of
5795 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
5797 *) Make rsa_oaep_test return non-zero on error.
5798 [Ulf Moeller <ulf@fitug.de>]
5800 *) Add support for native Solaris shared libraries. Configure
5801 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
5802 if someone would make that last step automatic.
5803 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
5805 *) ctx_size was not built with the right compiler during "make links". Fixed.
5808 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
5809 except NULL ciphers". This means the default cipher list will no longer
5810 enable NULL ciphers. They need to be specifically enabled e.g. with
5811 the string "DEFAULT:eNULL".
5814 *) Fix to RSA private encryption routines: if p < q then it would
5815 occasionally produce an invalid result. This will only happen with
5816 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
5819 *) Be less restrictive and allow also `perl util/perlpath.pl
5820 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
5821 because this way one can also use an interpreter named `perl5' (which is
5822 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
5823 installed as `perl').
5824 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5826 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
5827 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5829 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
5830 advapi32.lib to Win32 build and change the pem test comparision
5831 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
5832 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
5833 and crypto/des/ede_cbcm_enc.c.
5836 *) DES quad checksum was broken on big-endian architectures. Fixed.
5839 *) Comment out two functions in bio.h that aren't implemented. Fix up the
5840 Win32 test batch file so it (might) work again. The Win32 test batch file
5841 is horrible: I feel ill....
5844 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
5845 in e_os.h. Audit of header files to check ANSI and non ANSI
5846 sections: 10 functions were absent from non ANSI section and not exported
5847 from Windows DLLs. Fixed up libeay.num for new functions.
5850 *) Make `openssl version' output lines consistent.
5851 [Ralf S. Engelschall]
5853 *) Fix Win32 symbol export lists for BIO functions: Added
5854 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
5855 to ms/libeay{16,32}.def.
5856 [Ralf S. Engelschall]
5858 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
5859 fine under Unix and passes some trivial tests I've now added. But the
5860 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
5861 added to make sure no one expects that this stuff really works in the
5862 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
5863 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
5865 [Ralf S. Engelschall]
5867 *) Fix the generation of two part addresses in perl.
5868 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
5870 *) Add config entry for Linux on MIPS.
5871 [John Tobey <jtobey@channel1.com>]
5873 *) Make links whenever Configure is run, unless we are on Windoze.
5876 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
5877 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
5881 *) Add a useful kludge to allow package maintainers to specify compiler and
5882 other platforms details on the command line without having to patch the
5883 Configure script everytime: One now can use ``perl Configure
5884 <id>:<details>'', i.e. platform ids are allowed to have details appended
5885 to them (seperated by colons). This is treated as there would be a static
5886 pre-configured entry in Configure's %table under key <id> with value
5887 <details> and ``perl Configure <id>'' is called. So, when you want to
5888 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
5889 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
5890 now, which overrides the FreeBSD-elf entry on-the-fly.
5891 [Ralf S. Engelschall]
5893 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
5896 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
5897 on the `perl Configure ...' command line. This way one can compile
5898 OpenSSL libraries with Position Independent Code (PIC) which is needed
5899 for linking it into DSOs.
5900 [Ralf S. Engelschall]
5902 *) Remarkably, export ciphers were totally broken and no-one had noticed!
5906 *) Cleaned up the LICENSE document: The official contact for any license
5907 questions now is the OpenSSL core team under openssl-core@openssl.org.
5908 And add a paragraph about the dual-license situation to make sure people
5909 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
5910 to the OpenSSL toolkit.
5911 [Ralf S. Engelschall]
5913 *) General source tree makefile cleanups: Made `making xxx in yyy...'
5914 display consistent in the source tree and replaced `/bin/rm' by `rm'.
5915 Additonally cleaned up the `make links' target: Remove unnecessary
5916 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
5917 to speed processing and no longer clutter the display with confusing
5918 stuff. Instead only the actually done links are displayed.
5919 [Ralf S. Engelschall]
5921 *) Permit null encryption ciphersuites, used for authentication only. It used
5922 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
5923 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
5927 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
5928 signed attributes when verifying signatures (this would break them),
5929 the detached data encoding was wrong and public keys obtained using
5930 X509_get_pubkey() weren't freed.
5933 *) Add text documentation for the BUFFER functions. Also added a work around
5934 to a Win95 console bug. This was triggered by the password read stuff: the
5935 last character typed gets carried over to the next fread(). If you were
5936 generating a new cert request using 'req' for example then the last
5937 character of the passphrase would be CR which would then enter the first
5941 *) Added the new `Includes OpenSSL Cryptography Software' button as
5942 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
5943 button and can be used by applications based on OpenSSL to show the
5944 relationship to the OpenSSL project.
5945 [Ralf S. Engelschall]
5947 *) Remove confusing variables in function signatures in files
5948 ssl/ssl_lib.c and ssl/ssl.h.
5949 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5951 *) Don't install bss_file.c under PREFIX/include/
5952 [Lennart Bong <lob@kulthea.stacken.kth.se>]
5954 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
5955 functions that return function pointers and has support for NT specific
5956 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
5957 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
5958 unsigned to signed types: this was killing the Win32 compile.
5961 *) Add new certificate file to stack functions,
5962 SSL_add_dir_cert_subjects_to_stack() and
5963 SSL_add_file_cert_subjects_to_stack(). These largely supplant
5964 SSL_load_client_CA_file(), and can be used to add multiple certs easily
5965 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
5966 This means that Apache-SSL and similar packages don't have to mess around
5967 to add as many CAs as they want to the preferred list.
5970 *) Experiment with doxygen documentation. Currently only partially applied to
5972 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
5973 openssl.doxy as the configuration file.
5976 *) Get rid of remaining C++-style comments which strict C compilers hate.
5977 [Ralf S. Engelschall, pointed out by Carlos Amengual]
5979 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
5980 compiled in by default: it has problems with large keys.
5983 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
5984 DH private keys and/or callback functions which directly correspond to
5985 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
5986 is needed for applications which have to configure certificates on a
5987 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
5989 For the RSA certificate situation is makes no difference, but
5990 for the DSA certificate situation this fixes the "no shared cipher"
5991 problem where the OpenSSL cipher selection procedure failed because the
5992 temporary keys were not overtaken from the context and the API provided
5993 no way to reconfigure them.
5994 The new functions now let applications reconfigure the stuff and they
5995 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
5996 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
5997 non-public-API function ssl_cert_instantiate() is used as a helper
5998 function and also to reduce code redundancy inside ssl_rsa.c.
5999 [Ralf S. Engelschall]
6001 *) Move s_server -dcert and -dkey options out of the undocumented feature
6002 area because they are useful for the DSA situation and should be
6003 recognized by the users.
6004 [Ralf S. Engelschall]
6006 *) Fix the cipher decision scheme for export ciphers: the export bits are
6007 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6008 SSL_EXP_MASK. So, the original variable has to be used instead of the
6009 already masked variable.
6010 [Richard Levitte <levitte@stacken.kth.se>]
6012 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6013 [Richard Levitte <levitte@stacken.kth.se>]
6015 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6016 from `int' to `unsigned int' because it's a length and initialized by
6017 EVP_DigestFinal() which expects an `unsigned int *'.
6018 [Richard Levitte <levitte@stacken.kth.se>]
6020 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6021 script. Instead use the usual Shell->Perl transition trick.
6022 [Ralf S. Engelschall]
6024 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6025 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6026 -noout -modulus' as it's already the case for `openssl rsa -noout
6027 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6028 currently the public key is printed (a decision which was already done by
6029 `openssl dsa -modulus' in the past) which serves a similar purpose.
6030 Additionally the NO_RSA no longer completely removes the whole -modulus
6031 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6033 [Ralf S. Engelschall]
6035 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6036 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6037 [Arne Ansper <arne@ats.cyber.ee>]
6039 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6040 to be added. Now both 'req' and 'ca' can use new objects defined in the
6044 *) Add cool BIO that does syslog (or event log on NT).
6045 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6047 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6048 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6049 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6050 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6053 *) Add preliminary config info for new extension code.
6056 *) Make RSA_NO_PADDING really use no padding.
6057 [Ulf Moeller <ulf@fitug.de>]
6059 *) Generate errors when private/public key check is done.
6062 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6063 for some CRL extensions and new objects added.
6066 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6067 key usage extension and fuller support for authority key id.
6070 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6071 padding method for RSA, which is recommended for new applications in PKCS
6072 #1 v2.0 (RFC 2437, October 1998).
6073 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6074 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6075 against Bleichbacher's attack on RSA.
6076 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6079 *) Updates to the new SSL compression code
6080 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6082 *) Fix so that the version number in the master secret, when passed
6083 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6084 (because the server will not accept higher), that the version number
6085 is 0x03,0x01, not 0x03,0x00
6086 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6088 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6089 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6090 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6093 *) Support for RAW extensions where an arbitrary extension can be
6094 created by including its DER encoding. See apps/openssl.cnf for
6098 *) Make sure latest Perl versions don't interpret some generated C array
6099 code as Perl array code in the crypto/err/err_genc.pl script.
6100 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6102 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6103 not many people have the assembler. Various Win32 compilation fixes and
6104 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6108 *) Modify configure script 'Configure' to automatically create crypto/date.h
6109 file under Win32 and also build pem.h from pem.org. New script
6110 util/mkfiles.pl to create the MINFO file on environments that can't do a
6111 'make files': perl util/mkfiles.pl >MINFO should work.
6114 *) Major rework of DES function declarations, in the pursuit of correctness
6115 and purity. As a result, many evil casts evaporated, and some weirdness,
6116 too. You may find this causes warnings in your code. Zapping your evil
6117 casts will probably fix them. Mostly.
6120 *) Fix for a typo in asn1.h. Bug fix to object creation script
6121 obj_dat.pl. It considered a zero in an object definition to mean
6122 "end of object": none of the objects in objects.h have any zeros
6123 so it wasn't spotted.
6124 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6126 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6127 Masking (CBCM). In the absence of test vectors, the best I have been able
6128 to do is check that the decrypt undoes the encrypt, so far. Send me test
6129 vectors if you have them.
6132 *) Correct calculation of key length for export ciphers (too much space was
6133 allocated for null ciphers). This has not been tested!
6136 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6137 message is now correct (it understands "crypto" and "ssl" on its
6138 command line). There is also now an "update" option. This will update
6139 the util/ssleay.num and util/libeay.num files with any new functions.
6141 perl util/mkdef.pl crypto ssl update
6142 it will update them.
6145 *) Overhauled the Perl interface (perl/*):
6146 - ported BN stuff to OpenSSL's different BN library
6147 - made the perl/ source tree CVS-aware
6148 - renamed the package from SSLeay to OpenSSL (the files still contain
6149 their history because I've copied them in the repository)
6150 - removed obsolete files (the test scripts will be replaced
6151 by better Test::Harness variants in the future)
6152 [Ralf S. Engelschall]
6154 *) First cut for a very conservative source tree cleanup:
6155 1. merge various obsolete readme texts into doc/ssleay.txt
6156 where we collect the old documents and readme texts.
6157 2. remove the first part of files where I'm already sure that we no
6158 longer need them because of three reasons: either they are just temporary
6159 files which were left by Eric or they are preserved original files where
6160 I've verified that the diff is also available in the CVS via "cvs diff
6161 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6162 the crypto/md/ stuff).
6163 [Ralf S. Engelschall]
6165 *) More extension code. Incomplete support for subject and issuer alt
6166 name, issuer and authority key id. Change the i2v function parameters
6167 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6168 what that's for :-) Fix to ASN1 macro which messed up
6169 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6172 *) Preliminary support for ENUMERATED type. This is largely copied from the
6176 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6177 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6179 *) Make sure `make rehash' target really finds the `openssl' program.
6180 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6182 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6183 like to hear about it if this slows down other processors.
6186 *) Add CygWin32 platform information to Configure script.
6187 [Alan Batie <batie@aahz.jf.intel.com>]
6189 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6190 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6192 *) New program nseq to manipulate netscape certificate sequences
6195 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6199 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6200 but the BN code had some problems that would cause failures when
6201 doing certificate verification and some other functions.
6202 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6204 *) Add ASN1 and PEM code to support netscape certificate sequences.
6207 *) Add ASN1 and PEM code to support netscape certificate sequences.
6210 *) Add several PKIX and private extended key usage OIDs.
6213 *) Modify the 'ca' program to handle the new extension code. Modify
6214 openssl.cnf for new extension format, add comments.
6217 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6218 and add a sample to openssl.cnf so req -x509 now adds appropriate
6222 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6223 error code, add initial support to X509_print() and x509 application.
6226 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6227 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6228 stuff is currently isolated and isn't even compiled yet.
6231 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6232 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6233 Removed the versions check from X509 routines when loading extensions:
6234 this allows certain broken certificates that don't set the version
6235 properly to be processed.
6238 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6239 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6240 can still be regenerated with "make depend".
6243 *) Spelling mistake in C version of CAST-128.
6244 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6246 *) Changes to the error generation code. The perl script err-code.pl
6247 now reads in the old error codes and retains the old numbers, only
6248 adding new ones if necessary. It also only changes the .err files if new
6249 codes are added. The makefiles have been modified to only insert errors
6250 when needed (to avoid needlessly modifying header files). This is done
6251 by only inserting errors if the .err file is newer than the auto generated
6252 C file. To rebuild all the error codes from scratch (the old behaviour)
6253 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6254 or delete all the .err files.
6257 *) CAST-128 was incorrectly implemented for short keys. The C version has
6258 been fixed, but is untested. The assembler versions are also fixed, but
6259 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6260 to regenerate it if needed.
6261 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6262 Hagino <itojun@kame.net>]
6264 *) File was opened incorrectly in randfile.c.
6265 [Ulf Möller <ulf@fitug.de>]
6267 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6268 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6269 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6270 al: it's just almost always a UTCTime. Note this patch adds new error
6271 codes so do a "make errors" if there are problems.
6274 *) Correct Linux 1 recognition in config.
6275 [Ulf Möller <ulf@fitug.de>]
6277 *) Remove pointless MD5 hash when using DSA keys in ca.
6278 [Anonymous <nobody@replay.com>]
6280 *) Generate an error if given an empty string as a cert directory. Also
6281 generate an error if handed NULL (previously returned 0 to indicate an
6282 error, but didn't set one).
6283 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6285 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6288 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6289 parameters. This was causing a warning which killed off the Win32 compile.
6292 *) Remove C++ style comments from crypto/bn/bn_local.h.
6293 [Neil Costigan <neil.costigan@celocom.com>]
6295 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6296 based on a text string, looking up short and long names and finally
6297 "dot" format. The "dot" format stuff didn't work. Added new function
6298 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6299 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6300 OID is not part of the table.
6303 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6304 X509_LOOKUP_by_alias().
6307 *) Sort openssl functions by name.
6310 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6311 encryption from sample DSA keys (in case anyone is interested the password
6315 *) Make _all_ *_free functions accept a NULL pointer.
6316 [Frans Heymans <fheymans@isaserver.be>]
6318 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6320 [Anonymous <nobody@replay.com>]
6322 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6323 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6325 *) Don't blow it for numeric -newkey arguments to apps/req.
6326 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6328 *) Temp key "for export" tests were wrong in s3_srvr.c.
6329 [Anonymous <nobody@replay.com>]
6331 *) Add prototype for temp key callback functions
6332 SSL_CTX_set_tmp_{rsa,dh}_callback().
6335 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6336 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6339 *) X509_name_add_entry() freed the wrong thing after an error.
6340 [Arne Ansper <arne@ats.cyber.ee>]
6342 *) rsa_eay.c would attempt to free a NULL context.
6343 [Arne Ansper <arne@ats.cyber.ee>]
6345 *) BIO_s_socket() had a broken should_retry() on Windoze.
6346 [Arne Ansper <arne@ats.cyber.ee>]
6348 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
6349 [Arne Ansper <arne@ats.cyber.ee>]
6351 *) Make sure the already existing X509_STORE->depth variable is initialized
6352 in X509_STORE_new(), but document the fact that this variable is still
6353 unused in the certificate verification process.
6354 [Ralf S. Engelschall]
6356 *) Fix the various library and apps files to free up pkeys obtained from
6357 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6360 *) Fix reference counting in X509_PUBKEY_get(). This makes
6361 demos/maurice/example2.c work, amongst others, probably.
6362 [Steve Henson and Ben Laurie]
6364 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
6365 `openssl' and second, the shortcut symlinks for the `openssl <command>'
6366 are no longer created. This way we have a single and consistent command
6367 line interface `openssl <command>', similar to `cvs <command>'.
6368 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6370 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
6371 BIT STRING wrapper always have zero unused bits.
6374 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
6377 *) Make the top-level INSTALL documentation easier to understand.
6380 *) Makefiles updated to exit if an error occurs in a sub-directory
6381 make (including if user presses ^C) [Paul Sutton]
6383 *) Make Montgomery context stuff explicit in RSA data structure.
6386 *) Fix build order of pem and err to allow for generated pem.h.
6389 *) Fix renumbering bug in X509_NAME_delete_entry().
6392 *) Enhanced the err-ins.pl script so it makes the error library number
6393 global and can add a library name. This is needed for external ASN1 and
6394 other error libraries.
6397 *) Fixed sk_insert which never worked properly.
6400 *) Fix ASN1 macros so they can handle indefinite length construted
6401 EXPLICIT tags. Some non standard certificates use these: they can now
6405 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
6406 into a single doc/ssleay.txt bundle. This way the information is still
6407 preserved but no longer messes up this directory. Now it's new room for
6408 the new set of documenation files.
6409 [Ralf S. Engelschall]
6411 *) SETs were incorrectly DER encoded. This was a major pain, because they
6412 shared code with SEQUENCEs, which aren't coded the same. This means that
6413 almost everything to do with SETs or SEQUENCEs has either changed name or
6414 number of arguments.
6415 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
6417 *) Fix test data to work with the above.
6420 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
6421 was already fixed by Eric for 0.9.1 it seems.
6422 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
6424 *) Autodetect FreeBSD3.
6427 *) Fix various bugs in Configure. This affects the following platforms:
6431 unixware-2.0-pentium
6435 *) Eliminate generated files from CVS. Reorder tests to regenerate files
6436 before they are needed.
6439 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
6443 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
6445 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
6446 changed SSLeay to OpenSSL in version strings.
6447 [Ralf S. Engelschall]
6449 *) Some fixups to the top-level documents.
6452 *) Fixed the nasty bug where rsaref.h was not found under compile-time
6453 because the symlink to include/ was missing.
6454 [Ralf S. Engelschall]
6456 *) Incorporated the popular no-RSA/DSA-only patches
6457 which allow to compile a RSA-free SSLeay.
6458 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
6460 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
6461 when "ssleay" is still not found.
6462 [Ralf S. Engelschall]
6464 *) Added more platforms to Configure: Cray T3E, HPUX 11,
6465 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
6467 *) Updated the README file.
6468 [Ralf S. Engelschall]
6470 *) Added various .cvsignore files in the CVS repository subdirs
6471 to make a "cvs update" really silent.
6472 [Ralf S. Engelschall]
6474 *) Recompiled the error-definition header files and added
6475 missing symbols to the Win32 linker tables.
6476 [Ralf S. Engelschall]
6478 *) Cleaned up the top-level documents;
6479 o new files: CHANGES and LICENSE
6480 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
6481 o merged COPYRIGHT into LICENSE
6482 o removed obsolete TODO file
6483 o renamed MICROSOFT to INSTALL.W32
6484 [Ralf S. Engelschall]
6486 *) Removed dummy files from the 0.9.1b source tree:
6487 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
6488 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
6489 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
6490 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
6491 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
6492 [Ralf S. Engelschall]
6494 *) Added various platform portability fixes.
6497 *) The Genesis of the OpenSSL rpject:
6498 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
6499 Young and Tim J. Hudson created while they were working for C2Net until
6501 [The OpenSSL Project]
6504 Changes between 0.9.0b and 0.9.1b [not released]
6506 *) Updated a few CA certificates under certs/
6509 *) Changed some BIGNUM api stuff.
6512 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
6513 DGUX x86, Linux Alpha, etc.
6516 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
6517 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
6521 *) Add -strparse option to asn1pars program which parses nested
6523 [Dr Stephen Henson <shenson@bigfoot.com>]
6525 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
6528 *) DSA fix for "ca" program.
6531 *) Added "-genkey" option to "dsaparam" program.
6534 *) Added RIPE MD160 (rmd160) message digest.
6537 *) Added -a (all) option to "ssleay version" command.
6540 *) Added PLATFORM define which is the id given to Configure.
6543 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
6546 *) Extended the ASN.1 parser routines.
6549 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
6552 *) Added a BN_CTX to the BN library.
6555 *) Fixed the weak key values in DES library
6558 *) Changed API in EVP library for cipher aliases.
6561 *) Added support for RC2/64bit cipher.
6564 *) Converted the lhash library to the crypto/mem.c functions.
6567 *) Added more recognized ASN.1 object ids.
6570 *) Added more RSA padding checks for SSL/TLS.
6573 *) Added BIO proxy/filter functionality.
6576 *) Added extra_certs to SSL_CTX which can be used
6577 send extra CA certificates to the client in the CA cert chain sending
6578 process. It can be configured with SSL_CTX_add_extra_chain_cert().
6581 *) Now Fortezza is denied in the authentication phase because
6582 this is key exchange mechanism is not supported by SSLeay at all.
6585 *) Additional PKCS1 checks.
6588 *) Support the string "TLSv1" for all TLS v1 ciphers.
6591 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
6592 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
6595 *) Fixed a few memory leaks.
6598 *) Fixed various code and comment typos.
6601 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
6602 bytes sent in the client random.
6603 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob