5 Changes between 0.9.7j and 0.9.7k [xx XXX xxxx]
7 *) Change the Unix randomness entropy gathering to use poll() when
8 possible instead of select(), since the latter has some
9 undesirable limitations.
10 [Darryl Miles via Richard Levitte]
12 *) Disable rogue ciphersuites:
14 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
15 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
16 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
18 The latter two were purportedly from
19 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
22 Also deactive the remaining ciphersuites from
23 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
24 unofficial, and the ID has long expired.
27 *) Fix RSA blinding Heisenbug (problems sometimes occured on
28 dual-core machines) and other potential thread-safety issues.
31 Changes between 0.9.7i and 0.9.7j [04 May 2006]
33 *) Adapt fipsld and the build system to link against the validated FIPS
37 *) Fixes for VC++ 2005 build under Windows.
40 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
41 from a Windows bash shell such as MSYS. It is autodetected from the
42 "config" script when run from a VC++ environment. Modify standard VC++
43 build to use fipscanister.o from the GNU make build.
46 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
48 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
49 The value now differs depending on if you build for FIPS or not.
50 BEWARE! A program linked with a shared FIPSed libcrypto can't be
51 safely run with a non-FIPSed libcrypto, as it may crash because of
52 the difference induced by this change.
55 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
57 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
58 (part of SSL_OP_ALL). This option used to disable the
59 countermeasure against man-in-the-middle protocol-version
60 rollback in the SSL 2.0 server implementation, which is a bad
63 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
64 for Information Security, National Institute of Advanced Industrial
65 Science and Technology [AIST], Japan)]
67 *) Minimal support for X9.31 signatures and PSS padding modes. This is
68 mainly for FIPS compliance and not fully integrated at this stage.
71 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
72 the exponentiation using a fixed-length exponent. (Otherwise,
73 the information leaked through timing could expose the secret key
74 after many signatures; cf. Bleichenbacher's attack on DSA with
78 *) Make a new fixed-window mod_exp implementation the default for
79 RSA, DSA, and DH private-key operations so that the sequence of
80 squares and multiplies and the memory access pattern are
81 independent of the particular secret key. This will mitigate
82 cache-timing and potential related attacks.
84 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
85 and this is automatically used by BN_mod_exp_mont() if the new flag
86 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
87 will use this BN flag for private exponents unless the flag
88 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
89 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
91 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
93 *) Change the client implementation for SSLv23_method() and
94 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
95 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
96 (Previously, the SSL 2.0 backwards compatible Client Hello
97 message format would be used even with SSL_OP_NO_SSLv2.)
100 *) Add support for smime-type MIME parameter in S/MIME messages which some
104 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
105 a threadsafe manner. Modify rsa code to use new function and add calls
106 to dsa and dh code (which had race conditions before).
109 *) Include the fixed error library code in the C error file definitions
110 instead of fixing them up at runtime. This keeps the error code
114 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
116 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
119 *) Fixes for newer kerberos headers. NB: the casts are needed because
120 the 'length' field is signed on one version and unsigned on another
121 with no (?) obvious way to tell the difference, without these VC++
122 complains. Also the "definition" of FAR (blank) is no longer included
123 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
124 some needed definitions.
127 *) Undo Cygwin change.
130 *) Added support for proxy certificates according to RFC 3820.
131 Because they may be a security thread to unaware applications,
132 they must be explicitely allowed in run-time. See
133 docs/HOWTO/proxy_certificates.txt for further information.
136 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
138 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
139 server and client random values. Previously
140 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
141 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
143 This change has negligible security impact because:
145 1. Server and client random values still have 24 bytes of pseudo random
148 2. Server and client random values are sent in the clear in the initial
151 3. The master secret is derived using the premaster secret (48 bytes in
152 size for static RSA ciphersuites) as well as client server and random
155 The OpenSSL team would like to thank the UK NISCC for bringing this issue
158 [Stephen Henson, reported by UK NISCC]
160 *) Use Windows randomness collection on Cygwin.
163 *) Fix hang in EGD/PRNGD query when communication socket is closed
164 prematurely by EGD/PRNGD.
165 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
167 *) Prompt for pass phrases when appropriate for PKCS12 input format.
170 *) Back-port of selected performance improvements from development
171 branch, as well as improved support for PowerPC platforms.
174 *) Add lots of checks for memory allocation failure, error codes to indicate
175 failure and freeing up memory if a failure occurs.
176 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
178 *) Add new -passin argument to dgst.
181 *) Perform some character comparisons of different types in X509_NAME_cmp:
182 this is needed for some certificates that reencode DNs into UTF8Strings
183 (in violation of RFC3280) and can't or wont issue name rollover
187 *) Make an explicit check during certificate validation to see that
188 the CA setting in each certificate on the chain is correct. As a
189 side effect always do the following basic checks on extensions,
190 not just when there's an associated purpose to the check:
192 - if there is an unhandled critical extension (unless the user
193 has chosen to ignore this fault)
194 - if the path length has been exceeded (if one is set at all)
195 - that certain extensions fit the associated purpose (if one has
199 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
201 *) Avoid a race condition when CRLs are checked in a multi threaded
202 environment. This would happen due to the reordering of the revoked
203 entries during signature checking and serial number lookup. Now the
204 encoding is cached and the serial number sort performed under a lock.
205 Add new STACK function sk_is_sorted().
208 *) Add Delta CRL to the extension code.
211 *) Various fixes to s3_pkt.c so alerts are sent properly.
212 [David Holmes <d.holmes@f5.com>]
214 *) Reduce the chances of duplicate issuer name and serial numbers (in
215 violation of RFC3280) using the OpenSSL certificate creation utilities.
216 This is done by creating a random 64 bit value for the initial serial
217 number when a serial number file is created or when a self signed
218 certificate is created using 'openssl req -x509'. The initial serial
219 number file is created using 'openssl x509 -next_serial' in CA.pl
220 rather than being initialized to 1.
223 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
225 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
226 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
227 [Joe Orton, Steve Henson]
229 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
231 [Joe Orton, Steve Henson]
233 *) Make it possible to have multiple active certificates with the same
234 subject in the CA index file. This is done only if the keyword
235 'unique_subject' is set to 'no' in the main CA section (default
236 if 'CA_default') of the configuration file. The value is saved
237 with the database itself in a separate index attribute file,
238 named like the index file with '.attr' appended to the name.
241 *) X509 verify fixes. Disable broken certificate workarounds when
242 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
243 keyUsage extension present. Don't accept CRLs with unhandled critical
244 extensions: since verify currently doesn't process CRL extensions this
245 rejects a CRL with *any* critical extensions. Add new verify error codes
249 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
250 A clarification of RFC2560 will require the use of OCTET STRINGs and
251 some implementations cannot handle the current raw format. Since OpenSSL
252 copies and compares OCSP nonces as opaque blobs without any attempt at
253 parsing them this should not create any compatibility issues.
256 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
257 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
258 this HMAC (and other) operations are several times slower than OpenSSL
262 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
263 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
265 *) Use the correct content when signing type "other".
268 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
270 *) Fix various bugs revealed by running the NISCC test suite:
272 Stop out of bounds reads in the ASN1 code when presented with
273 invalid tags (CVE-2003-0543 and CVE-2003-0544).
275 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
277 If verify callback ignores invalid public key errors don't try to check
278 certificate signature with the NULL public key.
282 *) New -ignore_err option in ocsp application to stop the server
283 exiting on the first error in a request.
286 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
287 if the server requested one: as stated in TLS 1.0 and SSL 3.0
291 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
292 extra data after the compression methods not only for TLS 1.0
293 but also for SSL 3.0 (as required by the specification).
294 [Bodo Moeller; problem pointed out by Matthias Loepfe]
296 *) Change X509_certificate_type() to mark the key as exported/exportable
297 when it's 512 *bits* long, not 512 bytes.
300 *) Change AES_cbc_encrypt() so it outputs exact multiple of
301 blocks during encryption.
304 *) Various fixes to base64 BIO and non blocking I/O. On write
305 flushes were not handled properly if the BIO retried. On read
306 data was not being buffered properly and had various logic bugs.
307 This also affects blocking I/O when the data being decoded is a
311 *) Various S/MIME bugfixes and compatibility changes:
312 output correct application/pkcs7 MIME type if
313 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
314 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
315 of files as .eml work). Correctly handle very long lines in MIME
319 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
321 *) Countermeasure against the Klima-Pokorny-Rosa extension of
322 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
323 a protocol version number mismatch like a decryption error
324 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
327 *) Turn on RSA blinding by default in the default implementation
328 to avoid a timing attack. Applications that don't want it can call
329 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
330 They would be ill-advised to do so in most cases.
331 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
333 *) Change RSA blinding code so that it works when the PRNG is not
334 seeded (in this case, the secret RSA exponent is abused as
335 an unpredictable seed -- if it is not unpredictable, there
336 is no point in blinding anyway). Make RSA blinding thread-safe
337 by remembering the creator's thread ID in rsa->blinding and
338 having all other threads use local one-time blinding factors
339 (this requires more computation than sharing rsa->blinding, but
340 avoids excessive locking; and if an RSA object is not shared
341 between threads, blinding will still be very fast).
344 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
345 ENGINE as defaults for all supported algorithms irrespective of
346 the 'flags' parameter. 'flags' is now honoured, so applications
347 should make sure they are passing it correctly.
350 *) Target "mingw" now allows native Windows code to be generated in
351 the Cygwin environment as well as with the MinGW compiler.
354 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
356 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
357 via timing by performing a MAC computation even if incorrrect
358 block cipher padding has been found. This is a countermeasure
359 against active attacks where the attacker has to distinguish
360 between bad padding and a MAC verification error. (CVE-2003-0078)
362 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
363 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
364 Martin Vuagnoux (EPFL, Ilion)]
366 *) Make the no-err option work as intended. The intention with no-err
367 is not to have the whole error stack handling routines removed from
368 libcrypto, it's only intended to remove all the function name and
369 reason texts, thereby removing some of the footprint that may not
370 be interesting if those errors aren't displayed anyway.
372 NOTE: it's still possible for any application or module to have it's
373 own set of error texts inserted. The routines are there, just not
374 used by default when no-err is given.
377 *) Add support for FreeBSD on IA64.
378 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
380 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
381 Kerberos function mit_des_cbc_cksum(). Before this change,
382 the value returned by DES_cbc_cksum() was like the one from
383 mit_des_cbc_cksum(), except the bytes were swapped.
384 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
386 *) Allow an application to disable the automatic SSL chain building.
387 Before this a rather primitive chain build was always performed in
388 ssl3_output_cert_chain(): an application had no way to send the
389 correct chain if the automatic operation produced an incorrect result.
391 Now the chain builder is disabled if either:
393 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
395 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
397 The reasoning behind this is that an application would not want the
398 auto chain building to take place if extra chain certificates are
399 present and it might also want a means of sending no additional
400 certificates (for example the chain has two certificates and the
404 *) Add the possibility to build without the ENGINE framework.
405 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
407 *) Under Win32 gmtime() can return NULL: check return value in
408 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
411 *) DSA routines: under certain error conditions uninitialized BN objects
412 could be freed. Solution: make sure initialization is performed early
413 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
414 Nils Larsch <nla@trustcenter.de> via PR#459)
417 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
418 checked on reconnect on the client side, therefore session resumption
419 could still fail with a "ssl session id is different" error. This
420 behaviour is masked when SSL_OP_ALL is used due to
421 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
422 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
426 *) IA-32 assembler support enhancements: unified ELF targets, support
427 for SCO/Caldera platforms, fix for Cygwin shared build.
430 *) Add support for FreeBSD on sparc64. As a consequence, support for
431 FreeBSD on non-x86 processors is separate from x86 processors on
432 the config script, much like the NetBSD support.
433 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
435 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
437 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
440 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
441 code (06) was taken as the first octet of the session ID and the last
442 octet was ignored consequently. As a result SSLv2 client side session
443 caching could not have worked due to the session ID mismatch between
445 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
449 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
450 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
454 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
455 seems that in spite of existing for more than a year, many application
456 author have done nothing to provide the necessary callbacks, which
457 means that this particular engine will not work properly anywhere.
458 This is a very unfortunate situation which forces us, in the name
459 of usability, to give the hw_ncipher.c a static lock, which is part
461 NOTE: This is for the 0.9.7 series ONLY. This hack will never
462 appear in 0.9.8 or later. We EXPECT application authors to have
463 dealt properly with this when 0.9.8 is released (unless we actually
464 make such changes in the libcrypto locking code that changes will
465 have to be made anyway).
468 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
469 octets have been read, EOF or an error occurs. Without this change
470 some truncated ASN1 structures will not produce an error.
473 *) Disable Heimdal support, since it hasn't been fully implemented.
474 Still give the possibility to force the use of Heimdal, but with
475 warnings and a request that patches get sent to openssl-dev.
478 *) Add the VC-CE target, introduce the WINCE sysname, and add
479 INSTALL.WCE and appropriate conditionals to make it build.
480 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
482 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
483 cygssl-x.y.z.dll, where x, y and z are the major, minor and
484 edit numbers of the version.
485 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
487 *) Introduce safe string copy and catenation functions
488 (BUF_strlcpy() and BUF_strlcat()).
489 [Ben Laurie (CHATS) and Richard Levitte]
491 *) Avoid using fixed-size buffers for one-line DNs.
494 *) Add BUF_MEM_grow_clean() to avoid information leakage when
495 resizing buffers containing secrets, and use where appropriate.
498 *) Avoid using fixed size buffers for configuration file location.
501 *) Avoid filename truncation for various CA files.
504 *) Use sizeof in preference to magic numbers.
507 *) Avoid filename truncation in cert requests.
510 *) Add assertions to check for (supposedly impossible) buffer
514 *) Don't cache truncated DNS entries in the local cache (this could
515 potentially lead to a spoofing attack).
518 *) Fix various buffers to be large enough for hex/decimal
519 representations in a platform independent manner.
522 *) Add CRYPTO_realloc_clean() to avoid information leakage when
523 resizing buffers containing secrets, and use where appropriate.
526 *) Add BIO_indent() to avoid much slightly worrying code to do
530 *) Convert sprintf()/BIO_puts() to BIO_printf().
533 *) buffer_gets() could terminate with the buffer only half
537 *) Add assertions to prevent user-supplied crypto functions from
538 overflowing internal buffers by having large block sizes, etc.
541 *) New OPENSSL_assert() macro (similar to assert(), but enabled
545 *) Eliminate unused copy of key in RC4.
548 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
551 *) Fix off-by-one error in EGD path.
554 *) If RANDFILE path is too long, ignore instead of truncating.
557 *) Eliminate unused and incorrectly sized X.509 structure
561 *) Eliminate unused and dangerous function knumber().
564 *) Eliminate unused and dangerous structure, KSSL_ERR.
567 *) Protect against overlong session ID context length in an encoded
568 session object. Since these are local, this does not appear to be
572 *) Change from security patch (see 0.9.6e below) that did not affect
573 the 0.9.6 release series:
575 Remote buffer overflow in SSL3 protocol - an attacker could
576 supply an oversized master key in Kerberos-enabled versions.
580 *) Change the SSL kerb5 codes to match RFC 2712.
583 *) Make -nameopt work fully for req and add -reqopt switch.
584 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
586 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
587 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
589 *) Make sure tests can be performed even if the corresponding algorithms
590 have been removed entirely. This was also the last step to make
591 OpenSSL compilable with DJGPP under all reasonable conditions.
592 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
594 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
595 to allow version independent disabling of normally unselected ciphers,
596 which may be activated as a side-effect of selecting a single cipher.
598 (E.g., cipher list string "RSA" enables ciphersuites that are left
599 out of "ALL" because they do not provide symmetric encryption.
600 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
601 [Lutz Jaenicke, Bodo Moeller]
603 *) Add appropriate support for separate platform-dependent build
604 directories. The recommended way to make a platform-dependent
605 build directory is the following (tested on Linux), maybe with
608 # Place yourself outside of the OpenSSL source tree. In
609 # this example, the environment variable OPENSSL_SOURCE
610 # is assumed to contain the absolute OpenSSL source directory.
611 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
612 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
613 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
614 mkdir -p `dirname $F`
615 ln -s $OPENSSL_SOURCE/$F $F
618 To be absolutely sure not to disturb the source tree, a "make clean"
619 is a good thing. If it isn't successfull, don't worry about it,
620 it probably means the source directory is very clean.
623 *) Make sure any ENGINE control commands make local copies of string
624 pointers passed to them whenever necessary. Otherwise it is possible
625 the caller may have overwritten (or deallocated) the original string
626 data when a later ENGINE operation tries to use the stored values.
627 [Götz Babin-Ebell <babinebell@trustcenter.de>]
629 *) Improve diagnostics in file reading and command-line digests.
630 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
632 *) Add AES modes CFB and OFB to the object database. Correct an
633 error in AES-CFB decryption.
636 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
637 allows existing EVP_CIPHER_CTX structures to be reused after
638 calling EVP_*Final(). This behaviour is used by encryption
639 BIOs and some applications. This has the side effect that
640 applications must explicitly clean up cipher contexts with
641 EVP_CIPHER_CTX_cleanup() or they will leak memory.
644 *) Check the values of dna and dnb in bn_mul_recursive before calling
645 bn_mul_comba (a non zero value means the a or b arrays do not contain
646 n2 elements) and fallback to bn_mul_normal if either is not zero.
649 *) Fix escaping of non-ASCII characters when using the -subj option
650 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
653 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
654 form for "surname", serialNumber has no short form.
655 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
656 therefore remove "mail" short name for "internet 7".
657 The OID for unique identifiers in X509 certificates is
658 x500UniqueIdentifier, not uniqueIdentifier.
659 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
662 *) Add an "init" command to the ENGINE config module and auto initialize
663 ENGINEs. Without any "init" command the ENGINE will be initialized
664 after all ctrl commands have been executed on it. If init=1 the
665 ENGINE is initailized at that point (ctrls before that point are run
666 on the uninitialized ENGINE and after on the initialized one). If
667 init=0 then the ENGINE will not be iniatialized at all.
670 *) Fix the 'app_verify_callback' interface so that the user-defined
671 argument is actually passed to the callback: In the
672 SSL_CTX_set_cert_verify_callback() prototype, the callback
673 declaration has been changed from
676 int (*cb)(X509_STORE_CTX *,void *);
677 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
678 i=s->ctx->app_verify_callback(&ctx)
679 has been changed into
680 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
682 To update applications using SSL_CTX_set_cert_verify_callback(),
683 a dummy argument can be added to their callback functions.
684 [D. K. Smetters <smetters@parc.xerox.com>]
686 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
687 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
689 *) Add and OPENSSL_LOAD_CONF define which will cause
690 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
691 This allows older applications to transparently support certain
692 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
693 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
694 load the config file and OPENSSL_add_all_algorithms_conf() which will
695 always load it have also been added.
698 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
699 Adjust NIDs and EVP layer.
700 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
702 *) Config modules support in openssl utility.
704 Most commands now load modules from the config file,
705 though in a few (such as version) this isn't done
706 because it couldn't be used for anything.
708 In the case of ca and req the config file used is
709 the same as the utility itself: that is the -config
710 command line option can be used to specify an
714 *) Move default behaviour from OPENSSL_config(). If appname is NULL
715 use "openssl_conf" if filename is NULL use default openssl config file.
718 *) Add an argument to OPENSSL_config() to allow the use of an alternative
719 config section name. Add a new flag to tolerate a missing config file
720 and move code to CONF_modules_load_file().
723 *) Support for crypto accelerator cards from Accelerated Encryption
724 Processing, www.aep.ie. (Use engine 'aep')
725 The support was copied from 0.9.6c [engine] and adapted/corrected
726 to work with the new engine framework.
727 [AEP Inc. and Richard Levitte]
729 *) Support for SureWare crypto accelerator cards from Baltimore
730 Technologies. (Use engine 'sureware')
731 The support was copied from 0.9.6c [engine] and adapted
732 to work with the new engine framework.
735 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
736 make the newer ENGINE framework commands for the CHIL engine work.
737 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
739 *) Make it possible to produce shared libraries on ReliantUNIX.
740 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
742 *) Add the configuration target debug-linux-ppro.
743 Make 'openssl rsa' use the general key loading routines
744 implemented in apps.c, and make those routines able to
745 handle the key format FORMAT_NETSCAPE and the variant
747 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
749 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
750 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
752 *) Add -keyform to rsautl, and document -engine.
753 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
755 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
756 BIO_R_NO_SUCH_FILE error code rather than the generic
757 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
762 ERR_peek_last_error_line
763 ERR_peek_last_error_line_data.
767 ERR_peek_error_line_data,
768 but report on the latest error recorded rather than the first one
769 still in the error queue.
770 [Ben Laurie, Bodo Moeller]
772 *) default_algorithms option in ENGINE config module. This allows things
774 default_algorithms = ALL
775 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
778 *) Prelminary ENGINE config module.
781 *) New experimental application configuration code.
784 *) Change the AES code to follow the same name structure as all other
785 symmetric ciphers, and behave the same way. Move everything to
786 the directory crypto/aes, thereby obsoleting crypto/rijndael.
787 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
789 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
790 [Ben Laurie and Theo de Raadt]
792 *) Add option to output public keys in req command.
793 [Massimiliano Pala madwolf@openca.org]
795 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
796 (up to about 10% better than before for P-192 and P-224).
799 *) New functions/macros
801 SSL_CTX_set_msg_callback(ctx, cb)
802 SSL_CTX_set_msg_callback_arg(ctx, arg)
803 SSL_set_msg_callback(ssl, cb)
804 SSL_set_msg_callback_arg(ssl, arg)
806 to request calling a callback function
808 void cb(int write_p, int version, int content_type,
809 const void *buf, size_t len, SSL *ssl, void *arg)
811 whenever a protocol message has been completely received
812 (write_p == 0) or sent (write_p == 1). Here 'version' is the
813 protocol version according to which the SSL library interprets
814 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
815 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
816 the content type as defined in the SSL 3.0/TLS 1.0 protocol
817 specification (change_cipher_spec(20), alert(21), handshake(22)).
818 'buf' and 'len' point to the actual message, 'ssl' to the
819 SSL object, and 'arg' is the application-defined value set by
820 SSL[_CTX]_set_msg_callback_arg().
822 'openssl s_client' and 'openssl s_server' have new '-msg' options
823 to enable a callback that displays all protocol messages.
826 *) Change the shared library support so shared libraries are built as
827 soon as the corresponding static library is finished, and thereby get
828 openssl and the test programs linked against the shared library.
829 This still only happens when the keyword "shard" has been given to
830 the configuration scripts.
832 NOTE: shared library support is still an experimental thing, and
833 backward binary compatibility is still not guaranteed.
834 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
836 *) Add support for Subject Information Access extension.
837 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
839 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
840 additional bytes when new memory had to be allocated, not just
841 when reusing an existing buffer.
844 *) New command line and configuration option 'utf8' for the req command.
845 This allows field values to be specified as UTF8 strings.
848 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
849 runs for the former and machine-readable output for the latter.
852 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
853 of the e-mail address in the DN (i.e., it will go into a certificate
854 extension only). The new configuration file option 'email_in_dn = no'
856 [Massimiliano Pala madwolf@openca.org]
858 *) Change all functions with names starting with des_ to be starting
859 with DES_ instead. Add wrappers that are compatible with libdes,
860 but are named _ossl_old_des_*. Finally, add macros that map the
861 des_* symbols to the corresponding _ossl_old_des_* if libdes
862 compatibility is desired. If OpenSSL 0.9.6c compatibility is
863 desired, the des_* symbols will be mapped to DES_*, with one
866 Since we provide two compatibility mappings, the user needs to
867 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
868 compatibility is desired. The default (i.e., when that macro
869 isn't defined) is OpenSSL 0.9.6c compatibility.
871 There are also macros that enable and disable the support of old
872 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
873 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
874 are defined, the default will apply: to support the old des routines.
876 In either case, one must include openssl/des.h to get the correct
877 definitions. Do not try to just include openssl/des_old.h, that
880 NOTE: This is a major break of an old API into a new one. Software
881 authors are encouraged to switch to the DES_ style functions. Some
882 time in the future, des_old.h and the libdes compatibility functions
883 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
884 default), and then completely removed.
887 *) Test for certificates which contain unsupported critical extensions.
888 If such a certificate is found during a verify operation it is
889 rejected by default: this behaviour can be overridden by either
890 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
891 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
892 X509_supported_extension() has also been added which returns 1 if a
893 particular extension is supported.
896 *) Modify the behaviour of EVP cipher functions in similar way to digests
897 to retain compatibility with existing code.
900 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
901 compatibility with existing code. In particular the 'ctx' parameter does
902 not have to be to be initialized before the call to EVP_DigestInit() and
903 it is tidied up after a call to EVP_DigestFinal(). New function
904 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
905 EVP_MD_CTX_copy() changed to not require the destination to be
906 initialized valid and new function EVP_MD_CTX_copy_ex() added which
907 requires the destination to be valid.
909 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
910 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
913 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
914 so that complete 'Handshake' protocol structures are kept in memory
915 instead of overwriting 'msg_type' and 'length' with 'body' data.
918 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
919 [Massimo Santin via Richard Levitte]
921 *) Major restructuring to the underlying ENGINE code. This includes
922 reduction of linker bloat, separation of pure "ENGINE" manipulation
923 (initialisation, etc) from functionality dealing with implementations
924 of specific crypto iterfaces. This change also introduces integrated
925 support for symmetric ciphers and digest implementations - so ENGINEs
926 can now accelerate these by providing EVP_CIPHER and EVP_MD
927 implementations of their own. This is detailed in crypto/engine/README
928 as it couldn't be adequately described here. However, there are a few
929 API changes worth noting - some RSA, DSA, DH, and RAND functions that
930 were changed in the original introduction of ENGINE code have now
931 reverted back - the hooking from this code to ENGINE is now a good
932 deal more passive and at run-time, operations deal directly with
933 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
934 dereferencing through an ENGINE pointer any more. Also, the ENGINE
935 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
936 they were not being used by the framework as there is no concept of a
937 BIGNUM_METHOD and they could not be generalised to the new
938 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
939 ENGINE_cpy() has been removed as it cannot be consistently defined in
943 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
946 *) Change mkdef.pl to sort symbols that get the same entry number,
947 and make sure the automatically generated functions ERR_load_*
948 become part of libeay.num as well.
951 *) New function SSL_renegotiate_pending(). This returns true once
952 renegotiation has been requested (either SSL_renegotiate() call
953 or HelloRequest/ClientHello receveived from the peer) and becomes
954 false once a handshake has been completed.
955 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
956 sends a HelloRequest, but does not ensure that a handshake takes
957 place. SSL_renegotiate_pending() is useful for checking if the
958 client has followed the request.)
961 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
962 By default, clients may request session resumption even during
963 renegotiation (if session ID contexts permit); with this option,
964 session resumption is possible only in the first handshake.
966 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
967 more bits available for options that should not be part of
968 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
971 *) Add some demos for certificate and certificate request creation.
974 *) Make maximum certificate chain size accepted from the peer application
975 settable (SSL*_get/set_max_cert_list()), as proposed by
976 "Douglas E. Engert" <deengert@anl.gov>.
979 *) Add support for shared libraries for Unixware-7
980 (Boyd Lynn Gerber <gerberb@zenez.com>).
983 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
984 be done prior to destruction. Use this to unload error strings from
985 ENGINEs that load their own error strings. NB: This adds two new API
986 functions to "get" and "set" this destroy handler in an ENGINE.
989 *) Alter all existing ENGINE implementations (except "openssl" and
990 "openbsd") to dynamically instantiate their own error strings. This
991 makes them more flexible to be built both as statically-linked ENGINEs
992 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
993 Also, add stub code to each that makes building them as self-contained
994 shared-libraries easier (see README.ENGINE).
997 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
998 implementations into applications that are completely implemented in
999 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1000 commands that can be used to configure what shared-library to load and
1001 to control aspects of the way it is handled. Also, made an update to
1002 the README.ENGINE file that brings its information up-to-date and
1003 provides some information and instructions on the "dynamic" ENGINE
1004 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
1007 *) Make it possible to unload ranges of ERR strings with a new
1008 "ERR_unload_strings" function.
1011 *) Add a copy() function to EVP_MD.
1014 *) Make EVP_MD routines take a context pointer instead of just the
1015 md_data void pointer.
1018 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
1019 that the digest can only process a single chunk of data
1020 (typically because it is provided by a piece of
1021 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
1022 is only going to provide a single chunk of data, and hence the
1023 framework needn't accumulate the data for oneshot drivers.
1026 *) As with "ERR", make it possible to replace the underlying "ex_data"
1027 functions. This change also alters the storage and management of global
1028 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
1029 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
1030 index counters. The API functions that use this state have been changed
1031 to take a "class_index" rather than pointers to the class's local STACK
1032 and counter, and there is now an API function to dynamically create new
1033 classes. This centralisation allows us to (a) plug a lot of the
1034 thread-safety problems that existed, and (b) makes it possible to clean
1035 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
1036 such data would previously have always leaked in application code and
1037 workarounds were in place to make the memory debugging turn a blind eye
1038 to it. Application code that doesn't use this new function will still
1039 leak as before, but their memory debugging output will announce it now
1040 rather than letting it slide.
1042 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
1043 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
1044 has a return value to indicate success or failure.
1047 *) Make it possible to replace the underlying "ERR" functions such that the
1048 global state (2 LHASH tables and 2 locks) is only used by the "default"
1049 implementation. This change also adds two functions to "get" and "set"
1050 the implementation prior to it being automatically set the first time
1051 any other ERR function takes place. Ie. an application can call "get",
1052 pass the return value to a module it has just loaded, and that module
1053 can call its own "set" function using that value. This means the
1054 module's "ERR" operations will use (and modify) the error state in the
1055 application and not in its own statically linked copy of OpenSSL code.
1058 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
1059 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
1060 the operation, and provides a more encapsulated way for external code
1061 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
1062 to use these functions rather than manually incrementing the counts.
1064 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
1067 *) Add EVP test program.
1070 *) Add symmetric cipher support to ENGINE. Expect the API to change!
1073 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
1074 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
1075 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
1076 These allow a CRL to be built without having to access X509_CRL fields
1077 directly. Modify 'ca' application to use new functions.
1080 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
1081 bug workarounds. Rollback attack detection is a security feature.
1082 The problem will only arise on OpenSSL servers when TLSv1 is not
1083 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
1084 Software authors not wanting to support TLSv1 will have special reasons
1085 for their choice and can explicitly enable this option.
1086 [Bodo Moeller, Lutz Jaenicke]
1088 *) Rationalise EVP so it can be extended: don't include a union of
1089 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
1090 (similar to those existing for EVP_CIPHER_CTX).
1095 EVP_MD_CTX_init(&md); /* new function call */
1096 EVP_DigestInit(&md, EVP_sha1());
1097 EVP_DigestUpdate(&md, in, len);
1098 EVP_DigestFinal(&md, out, NULL);
1099 EVP_MD_CTX_cleanup(&md); /* new function call */
1103 *) Make DES key schedule conform to the usual scheme, as well as
1104 correcting its structure. This means that calls to DES functions
1105 now have to pass a pointer to a des_key_schedule instead of a
1106 plain des_key_schedule (which was actually always a pointer
1109 des_key_schedule ks;
1111 des_set_key_checked(..., &ks);
1112 des_ncbc_encrypt(..., &ks, ...);
1114 (Note that a later change renames 'des_...' into 'DES_...'.)
1117 *) Initial reduction of linker bloat: the use of some functions, such as
1118 PEM causes large amounts of unused functions to be linked in due to
1119 poor organisation. For example pem_all.c contains every PEM function
1120 which has a knock on effect of linking in large amounts of (unused)
1121 ASN1 code. Grouping together similar functions and splitting unrelated
1122 functions prevents this.
1125 *) Cleanup of EVP macros.
1128 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
1129 correct _ecb suffix.
1132 *) Add initial OCSP responder support to ocsp application. The
1133 revocation information is handled using the text based index
1134 use by the ca application. The responder can either handle
1135 requests generated internally, supplied in files (for example
1136 via a CGI script) or using an internal minimal server.
1139 *) Add configuration choices to get zlib compression for TLS.
1142 *) Changes to Kerberos SSL for RFC 2712 compliance:
1143 1. Implemented real KerberosWrapper, instead of just using
1144 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
1145 2. Implemented optional authenticator field of KerberosWrapper.
1147 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
1148 and authenticator structs; see crypto/krb5/.
1150 Generalized Kerberos calls to support multiple Kerberos libraries.
1151 [Vern Staats <staatsvr@asc.hpc.mil>,
1152 Jeffrey Altman <jaltman@columbia.edu>
1153 via Richard Levitte]
1155 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
1156 already does with RSA. testdsa.h now has 'priv_key/pub_key'
1157 values for each of the key sizes rather than having just
1158 parameters (and 'speed' generating keys each time).
1161 *) Speed up EVP routines.
1164 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
1165 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
1166 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
1167 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
1169 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
1170 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
1171 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
1174 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
1176 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
1179 *) Added the OS2-EMX target.
1180 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
1182 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
1183 to support NCONF routines in extension code. New function CONF_set_nconf()
1184 to allow functions which take an NCONF to also handle the old LHASH
1185 structure: this means that the old CONF compatible routines can be
1186 retained (in particular wrt extensions) without having to duplicate the
1187 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
1190 *) Enhance the general user interface with mechanisms for inner control
1191 and with possibilities to have yes/no kind of prompts.
1194 *) Change all calls to low level digest routines in the library and
1195 applications to use EVP. Add missing calls to HMAC_cleanup() and
1196 don't assume HMAC_CTX can be copied using memcpy().
1197 [Verdon Walker <VWalker@novell.com>, Steve Henson]
1199 *) Add the possibility to control engines through control names but with
1200 arbitrary arguments instead of just a string.
1201 Change the key loaders to take a UI_METHOD instead of a callback
1202 function pointer. NOTE: this breaks binary compatibility with earlier
1203 versions of OpenSSL [engine].
1204 Adapt the nCipher code for these new conditions and add a card insertion
1208 *) Enhance the general user interface with mechanisms to better support
1209 dialog box interfaces, application-defined prompts, the possibility
1210 to use defaults (for example default passwords from somewhere else)
1211 and interrupts/cancellations.
1214 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
1215 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
1218 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
1219 tidy up some unnecessarily weird code in 'sk_new()').
1220 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
1222 *) Change the key loading routines for ENGINEs to use the same kind
1223 callback (pem_password_cb) as all other routines that need this
1227 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
1228 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
1229 than this minimum value is recommended.
1232 *) New random seeder for OpenVMS, using the system process statistics
1233 that are easily reachable.
1236 *) Windows apparently can't transparently handle global
1237 variables defined in DLLs. Initialisations such as:
1239 const ASN1_ITEM *it = &ASN1_INTEGER_it;
1241 wont compile. This is used by the any applications that need to
1242 declare their own ASN1 modules. This was fixed by adding the option
1243 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
1244 needed for static libraries under Win32.
1247 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
1248 setting of purpose and trust fields. New X509_STORE trust and
1249 purpose functions and tidy up setting in other SSL functions.
1252 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
1253 structure. These are inherited by X509_STORE_CTX when it is
1254 initialised. This allows various defaults to be set in the
1255 X509_STORE structure (such as flags for CRL checking and custom
1256 purpose or trust settings) for functions which only use X509_STORE_CTX
1257 internally such as S/MIME.
1259 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
1260 trust settings if they are not set in X509_STORE. This allows X509_STORE
1261 purposes and trust (in S/MIME for example) to override any set by default.
1263 Add command line options for CRL checking to smime, s_client and s_server
1267 *) Initial CRL based revocation checking. If the CRL checking flag(s)
1268 are set then the CRL is looked up in the X509_STORE structure and
1269 its validity and signature checked, then if the certificate is found
1270 in the CRL the verify fails with a revoked error.
1272 Various new CRL related callbacks added to X509_STORE_CTX structure.
1274 Command line options added to 'verify' application to support this.
1276 This needs some additional work, such as being able to handle multiple
1277 CRLs with different times, extension based lookup (rather than just
1278 by subject name) and ultimately more complete V2 CRL extension
1282 *) Add a general user interface API (crypto/ui/). This is designed
1283 to replace things like des_read_password and friends (backward
1284 compatibility functions using this new API are provided).
1285 The purpose is to remove prompting functions from the DES code
1286 section as well as provide for prompting through dialog boxes in
1287 a window system and the like.
1290 *) Add "ex_data" support to ENGINE so implementations can add state at a
1291 per-structure level rather than having to store it globally.
1294 *) Make it possible for ENGINE structures to be copied when retrieved by
1295 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
1296 This causes the "original" ENGINE structure to act like a template,
1297 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
1298 operational state can be localised to each ENGINE structure, despite the
1299 fact they all share the same "methods". New ENGINE structures returned in
1300 this case have no functional references and the return value is the single
1301 structural reference. This matches the single structural reference returned
1302 by ENGINE_by_id() normally, when it is incremented on the pre-existing
1306 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
1307 needs to match any other type at all we need to manually clear the
1311 *) Changes to the "openssl engine" utility to include;
1312 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
1313 about an ENGINE's available control commands.
1314 - executing control commands from command line arguments using the
1315 '-pre' and '-post' switches. '-post' is only used if '-t' is
1316 specified and the ENGINE is successfully initialised. The syntax for
1317 the individual commands are colon-separated, for example;
1318 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
1321 *) New dynamic control command support for ENGINEs. ENGINEs can now
1322 declare their own commands (numbers), names (strings), descriptions,
1323 and input types for run-time discovery by calling applications. A
1324 subset of these commands are implicitly classed as "executable"
1325 depending on their input type, and only these can be invoked through
1326 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
1327 can be based on user input, config files, etc). The distinction is
1328 that "executable" commands cannot return anything other than a boolean
1329 result and can only support numeric or string input, whereas some
1330 discoverable commands may only be for direct use through
1331 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
1332 pointers, or other custom uses. The "executable" commands are to
1333 support parameterisations of ENGINE behaviour that can be
1334 unambiguously defined by ENGINEs and used consistently across any
1335 OpenSSL-based application. Commands have been added to all the
1336 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
1337 control over shared-library paths without source code alterations.
1340 *) Changed all ENGINE implementations to dynamically allocate their
1341 ENGINEs rather than declaring them statically. Apart from this being
1342 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
1343 this also allows the implementations to compile without using the
1344 internal engine_int.h header.
1347 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
1348 'const' value. Any code that should be able to modify a RAND_METHOD
1349 should already have non-const pointers to it (ie. they should only
1350 modify their own ones).
1353 *) Made a variety of little tweaks to the ENGINE code.
1354 - "atalla" and "ubsec" string definitions were moved from header files
1355 to C code. "nuron" string definitions were placed in variables
1356 rather than hard-coded - allowing parameterisation of these values
1357 later on via ctrl() commands.
1358 - Removed unused "#if 0"'d code.
1359 - Fixed engine list iteration code so it uses ENGINE_free() to release
1360 structural references.
1361 - Constified the RAND_METHOD element of ENGINE structures.
1362 - Constified various get/set functions as appropriate and added
1363 missing functions (including a catch-all ENGINE_cpy that duplicates
1364 all ENGINE values onto a new ENGINE except reference counts/state).
1365 - Removed NULL parameter checks in get/set functions. Setting a method
1366 or function to NULL is a way of cancelling out a previously set
1367 value. Passing a NULL ENGINE parameter is just plain stupid anyway
1368 and doesn't justify the extra error symbols and code.
1369 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
1370 flags from engine_int.h to engine.h.
1371 - Changed prototypes for ENGINE handler functions (init(), finish(),
1372 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
1375 *) Implement binary inversion algorithm for BN_mod_inverse in addition
1376 to the algorithm using long division. The binary algorithm can be
1377 used only if the modulus is odd. On 32-bit systems, it is faster
1378 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
1379 roughly 5-15% for 256-bit moduli), so we use it only for moduli
1380 up to 450 bits. In 64-bit environments, the binary algorithm
1381 appears to be advantageous for much longer moduli; here we use it
1382 for moduli up to 2048 bits.
1385 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
1386 could not support the combine flag in choice fields.
1389 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
1390 extensions from a certificate request to the certificate.
1393 *) Allow multiple 'certopt' and 'nameopt' options to be separated
1394 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
1395 file: this allows the display of the certificate about to be
1396 signed to be customised, to allow certain fields to be included
1397 or excluded and extension details. The old system didn't display
1398 multicharacter strings properly, omitted fields not in the policy
1399 and couldn't display additional details such as extensions.
1402 *) Function EC_POINTs_mul for multiple scalar multiplication
1403 of an arbitrary number of elliptic curve points
1404 \sum scalars[i]*points[i],
1405 optionally including the generator defined for the EC_GROUP:
1406 scalar*generator + \sum scalars[i]*points[i].
1408 EC_POINT_mul is a simple wrapper function for the typical case
1409 that the point list has just one item (besides the optional
1413 *) First EC_METHODs for curves over GF(p):
1415 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
1416 operations and provides various method functions that can also
1417 operate with faster implementations of modular arithmetic.
1419 EC_GFp_mont_method() reuses most functions that are part of
1420 EC_GFp_simple_method, but uses Montgomery arithmetic.
1422 [Bodo Moeller; point addition and point doubling
1423 implementation directly derived from source code provided by
1424 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
1426 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
1427 crypto/ec/ec_lib.c):
1429 Curves are EC_GROUP objects (with an optional group generator)
1430 based on EC_METHODs that are built into the library.
1432 Points are EC_POINT objects based on EC_GROUP objects.
1434 Most of the framework would be able to handle curves over arbitrary
1435 finite fields, but as there are no obvious types for fields other
1436 than GF(p), some functions are limited to that for now.
1439 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
1440 that the file contains a complete HTTP response.
1443 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
1444 change the def and num file printf format specifier from "%-40sXXX"
1445 to "%-39s XXX". The latter will always guarantee a space after the
1446 field while the former will cause them to run together if the field
1447 is 40 of more characters long.
1450 *) Constify the cipher and digest 'method' functions and structures
1451 and modify related functions to take constant EVP_MD and EVP_CIPHER
1455 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
1456 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
1459 *) Modify EVP_Digest*() routines so they now return values. Although the
1460 internal software routines can never fail additional hardware versions
1464 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
1466 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
1467 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
1470 ERR_R_NESTED_ASN1_ERROR
1472 ERR_R_MISSING_ASN1_EOS
1473 were 4 .. 9, conflicting with
1474 ERR_LIB_RSA (= ERR_R_RSA_LIB)
1476 ERR_LIB_PEM (= ERR_R_PEM_LIB).
1477 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
1479 Add new error code 'ERR_R_INTERNAL_ERROR'.
1482 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
1486 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
1487 sets the subject name for a new request or supersedes the
1488 subject name in a given request. Formats that can be parsed are
1489 'CN=Some Name, OU=myOU, C=IT'
1491 'CN=Some Name/OU=myOU/C=IT'.
1493 Add options '-batch' and '-verbose' to 'openssl req'.
1494 [Massimiliano Pala <madwolf@hackmasters.net>]
1496 *) Introduce the possibility to access global variables through
1497 functions on platform were that's the best way to handle exporting
1498 global variables in shared libraries. To enable this functionality,
1499 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
1500 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
1501 is normally done by Configure or something similar).
1503 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
1504 in the source file (foo.c) like this:
1506 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
1507 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
1509 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
1510 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
1512 OPENSSL_DECLARE_GLOBAL(int,foo);
1513 #define foo OPENSSL_GLOBAL_REF(foo)
1514 OPENSSL_DECLARE_GLOBAL(double,bar);
1515 #define bar OPENSSL_GLOBAL_REF(bar)
1517 The #defines are very important, and therefore so is including the
1518 header file everywhere where the defined globals are used.
1520 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
1521 of ASN.1 items, but that structure is a bit different.
1523 The largest change is in util/mkdef.pl which has been enhanced with
1524 better and easier to understand logic to choose which symbols should
1525 go into the Windows .def files as well as a number of fixes and code
1526 cleanup (among others, algorithm keywords are now sorted
1527 lexicographically to avoid constant rewrites).
1530 *) In BN_div() keep a copy of the sign of 'num' before writing the
1531 result to 'rm' because if rm==num the value will be overwritten
1532 and produce the wrong result if 'num' is negative: this caused
1533 problems with BN_mod() and BN_nnmod().
1536 *) Function OCSP_request_verify(). This checks the signature on an
1537 OCSP request and verifies the signer certificate. The signer
1538 certificate is just checked for a generic purpose and OCSP request
1542 *) Add OCSP_check_validity() function to check the validity of OCSP
1543 responses. OCSP responses are prepared in real time and may only
1544 be a few seconds old. Simply checking that the current time lies
1545 between thisUpdate and nextUpdate max reject otherwise valid responses
1546 caused by either OCSP responder or client clock inaccuracy. Instead
1547 we allow thisUpdate and nextUpdate to fall within a certain period of
1548 the current time. The age of the response can also optionally be
1549 checked. Two new options -validity_period and -status_age added to
1553 *) If signature or public key algorithm is unrecognized print out its
1554 OID rather that just UNKNOWN.
1557 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
1558 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
1559 ID to be generated from the issuer certificate alone which can then be
1560 passed to OCSP_id_issuer_cmp().
1563 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
1564 ASN1 modules to export functions returning ASN1_ITEM pointers
1565 instead of the ASN1_ITEM structures themselves. This adds several
1566 new macros which allow the underlying ASN1 function/structure to
1567 be accessed transparently. As a result code should not use ASN1_ITEM
1568 references directly (such as &X509_it) but instead use the relevant
1569 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
1570 use of the new ASN1 code on platforms where exporting structures
1571 is problematical (for example in shared libraries) but exporting
1572 functions returning pointers to structures is not.
1575 *) Add support for overriding the generation of SSL/TLS session IDs.
1576 These callbacks can be registered either in an SSL_CTX or per SSL.
1577 The purpose of this is to allow applications to control, if they wish,
1578 the arbitrary values chosen for use as session IDs, particularly as it
1579 can be useful for session caching in multiple-server environments. A
1580 command-line switch for testing this (and any client code that wishes
1581 to use such a feature) has been added to "s_server".
1582 [Geoff Thorpe, Lutz Jaenicke]
1584 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
1585 of the form '#if defined(...) || defined(...) || ...' and
1586 '#if !defined(...) && !defined(...) && ...'. This also avoids
1587 the growing number of special cases it was previously handling.
1590 *) Make all configuration macros available for application by making
1591 sure they are available in opensslconf.h, by giving them names starting
1592 with "OPENSSL_" to avoid conflicts with other packages and by making
1593 sure e_os2.h will cover all platform-specific cases together with
1595 Additionally, it is now possible to define configuration/platform-
1596 specific names (called "system identities"). In the C code, these
1597 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
1598 macro with the name beginning with "OPENSSL_SYS_", which is determined
1599 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
1603 *) New option -set_serial to 'req' and 'x509' this allows the serial
1604 number to use to be specified on the command line. Previously self
1605 signed certificates were hard coded with serial number 0 and the
1606 CA options of 'x509' had to use a serial number in a file which was
1610 *) New options to 'ca' utility to support V2 CRL entry extensions.
1611 Currently CRL reason, invalidity date and hold instruction are
1612 supported. Add new CRL extensions to V3 code and some new objects.
1615 *) New function EVP_CIPHER_CTX_set_padding() this is used to
1616 disable standard block padding (aka PKCS#5 padding) in the EVP
1617 API, which was previously mandatory. This means that the data is
1618 not padded in any way and so the total length much be a multiple
1619 of the block size, otherwise an error occurs.
1622 *) Initial (incomplete) OCSP SSL support.
1625 *) New function OCSP_parse_url(). This splits up a URL into its host,
1626 port and path components: primarily to parse OCSP URLs. New -url
1627 option to ocsp utility.
1630 *) New nonce behavior. The return value of OCSP_check_nonce() now
1631 reflects the various checks performed. Applications can decide
1632 whether to tolerate certain situations such as an absent nonce
1633 in a response when one was present in a request: the ocsp application
1634 just prints out a warning. New function OCSP_add1_basic_nonce()
1635 this is to allow responders to include a nonce in a response even if
1636 the request is nonce-less.
1639 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
1640 skipped when using openssl x509 multiple times on a single input file,
1641 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
1644 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
1645 set string type: to handle setting ASN1_TIME structures. Fix ca
1646 utility to correctly initialize revocation date of CRLs.
1649 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
1650 the clients preferred ciphersuites and rather use its own preferences.
1651 Should help to work around M$ SGC (Server Gated Cryptography) bug in
1652 Internet Explorer by ensuring unchanged hash method during stepup.
1653 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
1656 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
1657 to aes and add a new 'exist' option to print out symbols that don't
1661 *) Additional options to ocsp utility to allow flags to be set and
1662 additional certificates supplied.
1665 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
1666 OCSP client a number of certificate to only verify the response
1670 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
1671 handle the new API. Currently only ECB, CBC modes supported. Add new
1674 Add TLS AES ciphersuites as described in RFC3268, "Advanced
1675 Encryption Standard (AES) Ciphersuites for Transport Layer
1676 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
1677 not enabled by default and were not part of the "ALL" ciphersuite
1678 alias because they were not yet official; they could be
1679 explicitly requested by specifying the "AESdraft" ciphersuite
1680 group alias. In the final release of OpenSSL 0.9.7, the group
1681 alias is called "AES" and is part of "ALL".)
1682 [Ben Laurie, Steve Henson, Bodo Moeller]
1684 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
1685 request to response.
1688 *) Functions for OCSP responders. OCSP_request_onereq_count(),
1689 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
1690 extract information from a certificate request. OCSP_response_create()
1691 creates a response and optionally adds a basic response structure.
1692 OCSP_basic_add1_status() adds a complete single response to a basic
1693 response and returns the OCSP_SINGLERESP structure just added (to allow
1694 extensions to be included for example). OCSP_basic_add1_cert() adds a
1695 certificate to a basic response and OCSP_basic_sign() signs a basic
1696 response with various flags. New helper functions ASN1_TIME_check()
1697 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
1698 (converts ASN1_TIME to GeneralizedTime).
1701 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
1702 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
1703 structure from a certificate. X509_pubkey_digest() digests the public_key
1704 contents: this is used in various key identifiers.
1707 *) Make sk_sort() tolerate a NULL argument.
1708 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
1710 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
1711 passed by the function are trusted implicitly. If any of them signed the
1712 response then it is assumed to be valid and is not verified.
1715 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
1716 to data. This was previously part of the PKCS7 ASN1 code. This
1717 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
1718 [Steve Henson, reported by Kenneth R. Robinette
1719 <support@securenetterm.com>]
1721 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
1722 routines: without these tracing memory leaks is very painful.
1723 Fix leaks in PKCS12 and PKCS7 routines.
1726 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
1727 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
1728 effectively meant GeneralizedTime would never be used. Now it
1729 is initialised to -1 but X509_time_adj() now has to check the value
1730 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
1731 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
1732 [Steve Henson, reported by Kenneth R. Robinette
1733 <support@securenetterm.com>]
1735 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
1736 result in a zero length in the ASN1_INTEGER structure which was
1737 not consistent with the structure when d2i_ASN1_INTEGER() was used
1738 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
1739 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
1740 where it did not print out a minus for negative ASN1_INTEGER.
1743 *) Add summary printout to ocsp utility. The various functions which
1744 convert status values to strings have been renamed to:
1745 OCSP_response_status_str(), OCSP_cert_status_str() and
1746 OCSP_crl_reason_str() and are no longer static. New options
1747 to verify nonce values and to disable verification. OCSP response
1748 printout format cleaned up.
1751 *) Add additional OCSP certificate checks. These are those specified
1752 in RFC2560. This consists of two separate checks: the CA of the
1753 certificate being checked must either be the OCSP signer certificate
1754 or the issuer of the OCSP signer certificate. In the latter case the
1755 OCSP signer certificate must contain the OCSP signing extended key
1756 usage. This check is performed by attempting to match the OCSP
1757 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
1758 in the OCSP_CERTID structures of the response.
1761 *) Initial OCSP certificate verification added to OCSP_basic_verify()
1762 and related routines. This uses the standard OpenSSL certificate
1763 verify routines to perform initial checks (just CA validity) and
1764 to obtain the certificate chain. Then additional checks will be
1765 performed on the chain. Currently the root CA is checked to see
1766 if it is explicitly trusted for OCSP signing. This is used to set
1767 a root CA as a global signing root: that is any certificate that
1768 chains to that CA is an acceptable OCSP signing certificate.
1771 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
1772 extensions from a separate configuration file.
1773 As when reading extensions from the main configuration file,
1774 the '-extensions ...' option may be used for specifying the
1776 [Massimiliano Pala <madwolf@comune.modena.it>]
1778 *) New OCSP utility. Allows OCSP requests to be generated or
1779 read. The request can be sent to a responder and the output
1780 parsed, outputed or printed in text form. Not complete yet:
1781 still needs to check the OCSP response validity.
1784 *) New subcommands for 'openssl ca':
1785 'openssl ca -status <serial>' prints the status of the cert with
1786 the given serial number (according to the index file).
1787 'openssl ca -updatedb' updates the expiry status of certificates
1789 [Massimiliano Pala <madwolf@comune.modena.it>]
1791 *) New '-newreq-nodes' command option to CA.pl. This is like
1792 '-newreq', but calls 'openssl req' with the '-nodes' option
1793 so that the resulting key is not encrypted.
1794 [Damien Miller <djm@mindrot.org>]
1796 *) New configuration for the GNU Hurd.
1797 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
1799 *) Initial code to implement OCSP basic response verify. This
1800 is currently incomplete. Currently just finds the signer's
1801 certificate and verifies the signature on the response.
1804 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
1805 value of OPENSSLDIR. This is available via the new '-d' option
1806 to 'openssl version', and is also included in 'openssl version -a'.
1809 *) Allowing defining memory allocation callbacks that will be given
1810 file name and line number information in additional arguments
1811 (a const char* and an int). The basic functionality remains, as
1812 well as the original possibility to just replace malloc(),
1813 realloc() and free() by functions that do not know about these
1814 additional arguments. To register and find out the current
1815 settings for extended allocation functions, the following
1816 functions are provided:
1818 CRYPTO_set_mem_ex_functions
1819 CRYPTO_set_locked_mem_ex_functions
1820 CRYPTO_get_mem_ex_functions
1821 CRYPTO_get_locked_mem_ex_functions
1823 These work the same way as CRYPTO_set_mem_functions and friends.
1824 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
1825 extended allocation function is enabled.
1826 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
1827 a conventional allocation function is enabled.
1828 [Richard Levitte, Bodo Moeller]
1830 *) Finish off removing the remaining LHASH function pointer casts.
1831 There should no longer be any prototype-casting required when using
1832 the LHASH abstraction, and any casts that remain are "bugs". See
1833 the callback types and macros at the head of lhash.h for details
1834 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
1837 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
1838 If /dev/[u]random devices are not available or do not return enough
1839 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
1841 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
1842 /etc/entropy will be queried once each in this sequence, quering stops
1843 when enough entropy was collected without querying more sockets.
1846 *) Change the Unix RAND_poll() variant to be able to poll several
1847 random devices, as specified by DEVRANDOM, until a sufficient amount
1848 of data has been collected. We spend at most 10 ms on each file
1849 (select timeout) and read in non-blocking mode. DEVRANDOM now
1850 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
1851 (previously it was just the string "/dev/urandom"), so on typical
1852 platforms the 10 ms delay will never occur.
1853 Also separate out the Unix variant to its own file, rand_unix.c.
1854 For VMS, there's a currently-empty rand_vms.c.
1857 *) Move OCSP client related routines to ocsp_cl.c. These
1858 provide utility functions which an application needing
1859 to issue a request to an OCSP responder and analyse the
1860 response will typically need: as opposed to those which an
1861 OCSP responder itself would need which will be added later.
1863 OCSP_request_sign() signs an OCSP request with an API similar
1864 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
1865 response. OCSP_response_get1_basic() extracts basic response
1866 from response. OCSP_resp_find_status(): finds and extracts status
1867 information from an OCSP_CERTID structure (which will be created
1868 when the request structure is built). These are built from lower
1869 level functions which work on OCSP_SINGLERESP structures but
1870 wont normally be used unless the application wishes to examine
1871 extensions in the OCSP response for example.
1873 Replace nonce routines with a pair of functions.
1874 OCSP_request_add1_nonce() adds a nonce value and optionally
1875 generates a random value. OCSP_check_nonce() checks the
1876 validity of the nonce in an OCSP response.
1879 *) Change function OCSP_request_add() to OCSP_request_add0_id().
1880 This doesn't copy the supplied OCSP_CERTID and avoids the
1881 need to free up the newly created id. Change return type
1882 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
1883 This can then be used to add extensions to the request.
1884 Deleted OCSP_request_new(), since most of its functionality
1885 is now in OCSP_REQUEST_new() (and the case insensitive name
1886 clash) apart from the ability to set the request name which
1887 will be added elsewhere.
1890 *) Update OCSP API. Remove obsolete extensions argument from
1891 various functions. Extensions are now handled using the new
1892 OCSP extension code. New simple OCSP HTTP function which
1893 can be used to send requests and parse the response.
1896 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
1897 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
1898 uses the special reorder version of SET OF to sort the attributes
1899 and reorder them to match the encoded order. This resolves a long
1900 standing problem: a verify on a PKCS7 structure just after signing
1901 it used to fail because the attribute order did not match the
1902 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
1903 it uses the received order. This is necessary to tolerate some broken
1904 software that does not order SET OF. This is handled by encoding
1905 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
1906 to produce the required SET OF.
1909 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
1910 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
1911 files to get correct declarations of the ASN.1 item variables.
1914 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
1915 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
1916 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
1917 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
1918 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
1919 ASN1_ITEM and no wrapper functions.
1922 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
1923 replace the old function pointer based I/O routines. Change most of
1924 the *_d2i_bio() and *_d2i_fp() functions to use these.
1927 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
1928 lines, recognice more "algorithms" that can be deselected, and make
1929 it complain about algorithm deselection that isn't recognised.
1932 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
1933 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
1934 to use new functions. Add NO_ASN1_OLD which can be set to remove
1935 some old style ASN1 functions: this can be used to determine if old
1936 code will still work when these eventually go away.
1939 *) New extension functions for OCSP structures, these follow the
1940 same conventions as certificates and CRLs.
1943 *) New function X509V3_add1_i2d(). This automatically encodes and
1944 adds an extension. Its behaviour can be customised with various
1945 flags to append, replace or delete. Various wrappers added for
1946 certifcates and CRLs.
1949 *) Fix to avoid calling the underlying ASN1 print routine when
1950 an extension cannot be parsed. Correct a typo in the
1951 OCSP_SERVICELOC extension. Tidy up print OCSP format.
1954 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
1955 entries for variables.
1958 *) Add functionality to apps/openssl.c for detecting locking
1959 problems: As the program is single-threaded, all we have
1960 to do is register a locking callback using an array for
1961 storing which locks are currently held by the program.
1964 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
1965 SSL_get_ex_data_X509_STORE_idx(), which is used in
1966 ssl_verify_cert_chain() and thus can be called at any time
1967 during TLS/SSL handshakes so that thread-safety is essential.
1968 Unfortunately, the ex_data design is not at all suited
1969 for multi-threaded use, so it probably should be abolished.
1972 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
1973 [Broadcom, tweaked and integrated by Geoff Thorpe]
1975 *) Move common extension printing code to new function
1976 X509V3_print_extensions(). Reorganise OCSP print routines and
1977 implement some needed OCSP ASN1 functions. Add OCSP extensions.
1980 *) New function X509_signature_print() to remove duplication in some
1984 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
1985 set (this was treated exactly the same as SET OF previously). This
1986 is used to reorder the STACK representing the structure to match the
1987 encoding. This will be used to get round a problem where a PKCS7
1988 structure which was signed could not be verified because the STACK
1989 order did not reflect the encoded order.
1992 *) Reimplement the OCSP ASN1 module using the new code.
1995 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
1996 for its ASN1 operations. The old style function pointers still exist
1997 for now but they will eventually go away.
2000 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
2001 completely replaces the old ASN1 functionality with a table driven
2002 encoder and decoder which interprets an ASN1_ITEM structure describing
2003 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
2004 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
2005 has also been converted to the new form.
2008 *) Change BN_mod_exp_recp so that negative moduli are tolerated
2009 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
2010 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
2011 for negative moduli.
2014 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
2015 of not touching the result's sign bit.
2018 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
2022 *) Changed the LHASH code to use prototypes for callbacks, and created
2023 macros to declare and implement thin (optionally static) functions
2024 that provide type-safety and avoid function pointer casting for the
2025 type-specific callbacks.
2028 *) Added Kerberos Cipher Suites to be used with TLS, as written in
2030 [Veers Staats <staatsvr@asc.hpc.mil>,
2031 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
2033 *) Reformat the FAQ so the different questions and answers can be divided
2034 in sections depending on the subject.
2037 *) Have the zlib compression code load ZLIB.DLL dynamically under
2041 *) New function BN_mod_sqrt for computing square roots modulo a prime
2042 (using the probabilistic Tonelli-Shanks algorithm unless
2043 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
2044 be handled deterministically).
2045 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2047 *) Make BN_mod_inverse faster by explicitly handling small quotients
2048 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
2049 512 bits], about 30% for larger ones [1024 or 2048 bits].)
2052 *) New function BN_kronecker.
2055 *) Fix BN_gcd so that it works on negative inputs; the result is
2056 positive unless both parameters are zero.
2057 Previously something reasonably close to an infinite loop was
2058 possible because numbers could be growing instead of shrinking
2059 in the implementation of Euclid's algorithm.
2062 *) Fix BN_is_word() and BN_is_one() macros to take into account the
2063 sign of the number in question.
2065 Fix BN_is_word(a,w) to work correctly for w == 0.
2067 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
2068 because its test if the absolute value of 'a' equals 'w'.
2069 Note that BN_abs_is_word does *not* handle w == 0 reliably;
2070 it exists mostly for use in the implementations of BN_is_zero(),
2071 BN_is_one(), and BN_is_word().
2074 *) New function BN_swap.
2077 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
2078 the exponentiation functions are more likely to produce reasonable
2079 results on negative inputs.
2082 *) Change BN_mod_mul so that the result is always non-negative.
2083 Previously, it could be negative if one of the factors was negative;
2084 I don't think anyone really wanted that behaviour.
2087 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
2088 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
2089 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
2090 and add new functions:
2099 BN_mod_lshift1_quick
2103 These functions always generate non-negative results.
2105 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
2106 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
2108 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
2109 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
2110 be reduced modulo m.
2111 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
2114 The following entry accidentily appeared in the CHANGES file
2115 distributed with OpenSSL 0.9.7. The modifications described in
2116 it do *not* apply to OpenSSL 0.9.7.
2118 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2119 was actually never needed) and in BN_mul(). The removal in BN_mul()
2120 required a small change in bn_mul_part_recursive() and the addition
2121 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2122 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2123 bn_sub_words() and bn_add_words() except they take arrays with
2128 *) In 'openssl passwd', verify passwords read from the terminal
2129 unless the '-salt' option is used (which usually means that
2130 verification would just waste user's time since the resulting
2131 hash is going to be compared with some given password hash)
2132 or the new '-noverify' option is used.
2134 This is an incompatible change, but it does not affect
2135 non-interactive use of 'openssl passwd' (passwords on the command
2136 line, '-stdin' option, '-in ...' option) and thus should not
2140 *) Remove all references to RSAref, since there's no more need for it.
2143 *) Make DSO load along a path given through an environment variable
2144 (SHLIB_PATH) with shl_load().
2147 *) Constify the ENGINE code as a result of BIGNUM constification.
2148 Also constify the RSA code and most things related to it. In a
2149 few places, most notable in the depth of the ASN.1 code, ugly
2150 casts back to non-const were required (to be solved at a later
2154 *) Make it so the openssl application has all engines loaded by default.
2157 *) Constify the BIGNUM routines a little more.
2160 *) Add the following functions:
2162 ENGINE_load_cswift()
2164 ENGINE_load_atalla()
2166 ENGINE_load_builtin_engines()
2168 That way, an application can itself choose if external engines that
2169 are built-in in OpenSSL shall ever be used or not. The benefit is
2170 that applications won't have to be linked with libdl or other dso
2171 libraries unless it's really needed.
2173 Changed 'openssl engine' to load all engines on demand.
2174 Changed the engine header files to avoid the duplication of some
2175 declarations (they differed!).
2178 *) 'openssl engine' can now list capabilities.
2181 *) Better error reporting in 'openssl engine'.
2184 *) Never call load_dh_param(NULL) in s_server.
2187 *) Add engine application. It can currently list engines by name and
2188 identity, and test if they are actually available.
2191 *) Improve RPM specification file by forcing symbolic linking and making
2192 sure the installed documentation is also owned by root.root.
2193 [Damien Miller <djm@mindrot.org>]
2195 *) Give the OpenSSL applications more possibilities to make use of
2196 keys (public as well as private) handled by engines.
2199 *) Add OCSP code that comes from CertCo.
2202 *) Add VMS support for the Rijndael code.
2205 *) Added untested support for Nuron crypto accelerator.
2208 *) Add support for external cryptographic devices. This code was
2209 previously distributed separately as the "engine" branch.
2210 [Geoff Thorpe, Richard Levitte]
2212 *) Rework the filename-translation in the DSO code. It is now possible to
2213 have far greater control over how a "name" is turned into a filename
2214 depending on the operating environment and any oddities about the
2215 different shared library filenames on each system.
2218 *) Support threads on FreeBSD-elf in Configure.
2221 *) Fix for SHA1 assembly problem with MASM: it produces
2222 warnings about corrupt line number information when assembling
2223 with debugging information. This is caused by the overlapping
2225 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
2228 NCONF_get_number() has no error checking at all. As a replacement,
2229 NCONF_get_number_e() is defined (_e for "error checking") and is
2230 promoted strongly. The old NCONF_get_number is kept around for
2231 binary backward compatibility.
2232 Make it possible for methods to load from something other than a BIO,
2233 by providing a function pointer that is given a name instead of a BIO.
2234 For example, this could be used to load configuration data from an
2238 *) Fix for non blocking accept BIOs. Added new I/O special reason
2239 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
2240 with non blocking I/O was not possible because no retry code was
2241 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
2245 *) Added the beginnings of Rijndael support.
2248 *) Fix for bug in DirectoryString mask setting. Add support for
2249 X509_NAME_print_ex() in 'req' and X509_print_ex() function
2250 to allow certificate printing to more controllable, additional
2251 'certopt' option to 'x509' to allow new printing options to be
2255 *) Clean old EAY MD5 hack from e_os.h.
2258 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
2260 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2261 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2262 [Joe Orton, Steve Henson]
2264 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
2266 *) Fix additional bug revealed by the NISCC test suite:
2268 Stop bug triggering large recursion when presented with
2269 certain ASN.1 tags (CVE-2003-0851)
2272 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
2274 *) Fix various bugs revealed by running the NISCC test suite:
2276 Stop out of bounds reads in the ASN1 code when presented with
2277 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2279 If verify callback ignores invalid public key errors don't try to check
2280 certificate signature with the NULL public key.
2284 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2285 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2289 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2290 extra data after the compression methods not only for TLS 1.0
2291 but also for SSL 3.0 (as required by the specification).
2292 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2294 *) Change X509_certificate_type() to mark the key as exported/exportable
2295 when it's 512 *bits* long, not 512 bytes.
2298 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
2300 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2301 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2302 a protocol version number mismatch like a decryption error
2303 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2306 *) Turn on RSA blinding by default in the default implementation
2307 to avoid a timing attack. Applications that don't want it can call
2308 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2309 They would be ill-advised to do so in most cases.
2310 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2312 *) Change RSA blinding code so that it works when the PRNG is not
2313 seeded (in this case, the secret RSA exponent is abused as
2314 an unpredictable seed -- if it is not unpredictable, there
2315 is no point in blinding anyway). Make RSA blinding thread-safe
2316 by remembering the creator's thread ID in rsa->blinding and
2317 having all other threads use local one-time blinding factors
2318 (this requires more computation than sharing rsa->blinding, but
2319 avoids excessive locking; and if an RSA object is not shared
2320 between threads, blinding will still be very fast).
2323 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
2325 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2326 via timing by performing a MAC computation even if incorrrect
2327 block cipher padding has been found. This is a countermeasure
2328 against active attacks where the attacker has to distinguish
2329 between bad padding and a MAC verification error. (CVE-2003-0078)
2331 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2332 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2333 Martin Vuagnoux (EPFL, Ilion)]
2335 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
2337 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
2338 memory from it's contents. This is done with a counter that will
2339 place alternating values in each byte. This can be used to solve
2340 two issues: 1) the removal of calls to memset() by highly optimizing
2341 compilers, and 2) cleansing with other values than 0, since those can
2342 be read through on certain media, for example a swap space on disk.
2345 *) Bugfix: client side session caching did not work with external caching,
2346 because the session->cipher setting was not restored when reloading
2347 from the external cache. This problem was masked, when
2348 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
2349 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
2352 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
2353 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
2354 [Zeev Lieber <zeev-l@yahoo.com>]
2356 *) Undo an undocumented change introduced in 0.9.6e which caused
2357 repeated calls to OpenSSL_add_all_ciphers() and
2358 OpenSSL_add_all_digests() to be ignored, even after calling
2362 *) Change the default configuration reader to deal with last line not
2363 being properly terminated.
2366 *) Change X509_NAME_cmp() so it applies the special rules on handling
2367 DN values that are of type PrintableString, as well as RDNs of type
2368 emailAddress where the value has the type ia5String.
2369 [stefank@valicert.com via Richard Levitte]
2371 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
2372 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
2373 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
2374 the bitwise-OR of the two for use by the majority of applications
2375 wanting this behaviour, and update the docs. The documented
2376 behaviour and actual behaviour were inconsistent and had been
2377 changing anyway, so this is more a bug-fix than a behavioural
2379 [Geoff Thorpe, diagnosed by Nadav Har'El]
2381 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
2382 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
2385 *) Fix initialization code race conditions in
2386 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
2387 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
2388 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
2389 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
2390 ssl2_get_cipher_by_char(),
2391 ssl3_get_cipher_by_char().
2392 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
2394 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
2395 the cached sessions are flushed, as the remove_cb() might use ex_data
2396 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
2397 (see [openssl.org #212]).
2398 [Geoff Thorpe, Lutz Jaenicke]
2400 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
2401 length, instead of the encoding length to d2i_ASN1_OBJECT.
2404 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
2406 *) [In 0.9.6g-engine release:]
2407 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
2408 [Lynn Gazis <lgazis@rainbow.com>]
2410 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
2412 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
2413 and get fix the header length calculation.
2414 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
2415 Alon Kantor <alonk@checkpoint.com> (and others),
2418 *) Use proper error handling instead of 'assertions' in buffer
2419 overflow checks added in 0.9.6e. This prevents DoS (the
2420 assertions could call abort()).
2421 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
2423 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
2425 *) Add various sanity checks to asn1_get_length() to reject
2426 the ASN1 length bytes if they exceed sizeof(long), will appear
2427 negative or the content length exceeds the length of the
2429 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2431 *) Fix cipher selection routines: ciphers without encryption had no flags
2432 for the cipher strength set and where therefore not handled correctly
2433 by the selection routines (PR #130).
2436 *) Fix EVP_dsa_sha macro.
2440 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
2441 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
2442 that was added in OpenSSL 0.9.6d.
2444 As the countermeasure turned out to be incompatible with some
2445 broken SSL implementations, the new option is part of SSL_OP_ALL.
2446 SSL_OP_ALL is usually employed when compatibility with weird SSL
2447 implementations is desired (e.g. '-bugs' option to 's_client' and
2448 's_server'), so the new option is automatically set in many
2452 *) Changes in security patch:
2454 Changes marked "(CHATS)" were sponsored by the Defense Advanced
2455 Research Projects Agency (DARPA) and Air Force Research Laboratory,
2456 Air Force Materiel Command, USAF, under agreement number
2459 *) Add various sanity checks to asn1_get_length() to reject
2460 the ASN1 length bytes if they exceed sizeof(long), will appear
2461 negative or the content length exceeds the length of the
2462 supplied buffer. (CVE-2002-0659)
2463 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
2465 *) Assertions for various potential buffer overflows, not known to
2467 [Ben Laurie (CHATS)]
2469 *) Various temporary buffers to hold ASCII versions of integers were
2470 too small for 64 bit platforms. (CVE-2002-0655)
2471 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
2473 *) Remote buffer overflow in SSL3 protocol - an attacker could
2474 supply an oversized session ID to a client. (CVE-2002-0656)
2475 [Ben Laurie (CHATS)]
2477 *) Remote buffer overflow in SSL2 protocol - an attacker could
2478 supply an oversized client master key. (CVE-2002-0656)
2479 [Ben Laurie (CHATS)]
2481 Changes between 0.9.6c and 0.9.6d [9 May 2002]
2483 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
2484 encoded as NULL) with id-dsa-with-sha1.
2485 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
2487 *) Check various X509_...() return values in apps/req.c.
2488 [Nils Larsch <nla@trustcenter.de>]
2490 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
2491 an end-of-file condition would erronously be flagged, when the CRLF
2492 was just at the end of a processed block. The bug was discovered when
2493 processing data through a buffering memory BIO handing the data to a
2494 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
2495 <ptsekov@syntrex.com> and Nedelcho Stanev.
2498 *) Implement a countermeasure against a vulnerability recently found
2499 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
2500 before application data chunks to avoid the use of known IVs
2501 with data potentially chosen by the attacker.
2504 *) Fix length checks in ssl3_get_client_hello().
2507 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
2508 to prevent ssl3_read_internal() from incorrectly assuming that
2509 ssl3_read_bytes() found application data while handshake
2510 processing was enabled when in fact s->s3->in_read_app_data was
2511 merely automatically cleared during the initial handshake.
2512 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
2514 *) Fix object definitions for Private and Enterprise: they were not
2515 recognized in their shortname (=lowercase) representation. Extend
2516 obj_dat.pl to issue an error when using undefined keywords instead
2517 of silently ignoring the problem (Svenning Sorensen
2518 <sss@sss.dnsalias.net>).
2521 *) Fix DH_generate_parameters() so that it works for 'non-standard'
2522 generators, i.e. generators other than 2 and 5. (Previously, the
2523 code did not properly initialise the 'add' and 'rem' values to
2524 BN_generate_prime().)
2526 In the new general case, we do not insist that 'generator' is
2527 actually a primitive root: This requirement is rather pointless;
2528 a generator of the order-q subgroup is just as good, if not
2532 *) Map new X509 verification errors to alerts. Discovered and submitted by
2533 Tom Wu <tom@arcot.com>.
2536 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
2537 returning non-zero before the data has been completely received
2538 when using non-blocking I/O.
2539 [Bodo Moeller; problem pointed out by John Hughes]
2541 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
2542 [Ben Laurie, Lutz Jaenicke]
2544 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
2545 Yoram Zahavi <YoramZ@gilian.com>).
2548 *) Add information about CygWin 1.3 and on, and preserve proper
2549 configuration for the versions before that.
2550 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2552 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
2553 check whether we deal with a copy of a session and do not delete from
2554 the cache in this case. Problem reported by "Izhar Shoshani Levi"
2555 <izhar@checkpoint.com>.
2558 *) Do not store session data into the internal session cache, if it
2559 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
2560 flag is set). Proposed by Aslam <aslam@funk.com>.
2563 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
2567 *) [In 0.9.6d-engine release:]
2568 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2569 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2571 *) Add the configuration target linux-s390x.
2572 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
2574 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
2575 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
2576 variable as an indication that a ClientHello message has been
2577 received. As the flag value will be lost between multiple
2578 invocations of ssl3_accept when using non-blocking I/O, the
2579 function may not be aware that a handshake has actually taken
2580 place, thus preventing a new session from being added to the
2583 To avoid this problem, we now set s->new_session to 2 instead of
2584 using a local variable.
2585 [Lutz Jaenicke, Bodo Moeller]
2587 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
2588 if the SSL_R_LENGTH_MISMATCH error is detected.
2589 [Geoff Thorpe, Bodo Moeller]
2591 *) New 'shared_ldflag' column in Configure platform table.
2594 *) Fix EVP_CIPHER_mode macro.
2595 ["Dan S. Camper" <dan@bti.net>]
2597 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
2598 type, we must throw them away by setting rr->length to 0.
2599 [D P Chang <dpc@qualys.com>]
2601 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
2603 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
2604 <Dominikus.Scherkl@biodata.com>. (The previous implementation
2605 worked incorrectly for those cases where range = 10..._2 and
2606 3*range is two bits longer than range.)
2609 *) Only add signing time to PKCS7 structures if it is not already
2613 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
2614 OBJ_ld_ce should be OBJ_id_ce.
2615 Also some ip-pda OIDs in crypto/objects/objects.txt were
2616 incorrect (cf. RFC 3039).
2617 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
2619 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
2620 returns early because it has nothing to do.
2621 [Andy Schneider <andy.schneider@bjss.co.uk>]
2623 *) [In 0.9.6c-engine release:]
2624 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
2625 [Andy Schneider <andy.schneider@bjss.co.uk>]
2627 *) [In 0.9.6c-engine release:]
2628 Add support for Cryptographic Appliance's keyserver technology.
2629 (Use engine 'keyclient')
2630 [Cryptographic Appliances and Geoff Thorpe]
2632 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
2633 is called via tools/c89.sh because arguments have to be
2634 rearranged (all '-L' options must appear before the first object
2636 [Richard Shapiro <rshapiro@abinitio.com>]
2638 *) [In 0.9.6c-engine release:]
2639 Add support for Broadcom crypto accelerator cards, backported
2641 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
2643 *) [In 0.9.6c-engine release:]
2644 Add support for SureWare crypto accelerator cards from
2645 Baltimore Technologies. (Use engine 'sureware')
2646 [Baltimore Technologies and Mark Cox]
2648 *) [In 0.9.6c-engine release:]
2649 Add support for crypto accelerator cards from Accelerated
2650 Encryption Processing, www.aep.ie. (Use engine 'aep')
2651 [AEP Inc. and Mark Cox]
2653 *) Add a configuration entry for gcc on UnixWare.
2654 [Gary Benson <gbenson@redhat.com>]
2656 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
2657 messages are stored in a single piece (fixed-length part and
2658 variable-length part combined) and fix various bugs found on the way.
2661 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
2662 instead. BIO_gethostbyname() does not know what timeouts are
2663 appropriate, so entries would stay in cache even when they have
2665 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
2667 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
2668 faced with a pathologically small ClientHello fragment that does
2669 not contain client_version: Instead of aborting with an error,
2670 simply choose the highest available protocol version (i.e.,
2671 TLS 1.0 unless it is disabled). In practice, ClientHello
2672 messages are never sent like this, but this change gives us
2673 strictly correct behaviour at least for TLS.
2676 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
2677 never resets s->method to s->ctx->method when called from within
2678 one of the SSL handshake functions.
2679 [Bodo Moeller; problem pointed out by Niko Baric]
2681 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
2682 (sent using the client's version number) if client_version is
2683 smaller than the protocol version in use. Also change
2684 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
2685 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
2686 the client will at least see that alert.
2689 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
2693 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
2694 client receives HelloRequest while in a handshake.
2695 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
2697 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
2698 should end in 'break', not 'goto end' which circuments various
2699 cleanups done in state SSL_ST_OK. But session related stuff
2700 must be disabled for SSL_ST_OK in the case that we just sent a
2703 Also avoid some overhead by not calling ssl_init_wbio_buffer()
2704 before just sending a HelloRequest.
2705 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
2707 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
2708 reveal whether illegal block cipher padding was found or a MAC
2709 verification error occured. (Neither SSLerr() codes nor alerts
2710 are directly visible to potential attackers, but the information
2711 may leak via logfiles.)
2713 Similar changes are not required for the SSL 2.0 implementation
2714 because the number of padding bytes is sent in clear for SSL 2.0,
2715 and the extra bytes are just ignored. However ssl/s2_pkt.c
2716 failed to verify that the purported number of padding bytes is in
2720 *) Add OpenUNIX-8 support including shared libraries
2721 (Boyd Lynn Gerber <gerberb@zenez.com>).
2724 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
2725 'wristwatch attack' using huge encoding parameters (cf.
2726 James H. Manger's CRYPTO 2001 paper). Note that the
2727 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
2728 encoding parameters and hence was not vulnerable.
2731 *) BN_sqr() bug fix.
2732 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
2734 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
2735 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
2736 followed by modular reduction.
2737 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
2739 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
2740 equivalent based on BN_pseudo_rand() instead of BN_rand().
2743 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
2744 This function was broken, as the check for a new client hello message
2745 to handle SGC did not allow these large messages.
2746 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
2749 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
2752 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
2753 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
2756 *) Rework the configuration and shared library support for Tru64 Unix.
2757 The configuration part makes use of modern compiler features and
2758 still retains old compiler behavior for those that run older versions
2759 of the OS. The shared library support part includes a variant that
2760 uses the RPATH feature, and is available through the special
2761 configuration target "alpha-cc-rpath", which will never be selected
2763 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
2765 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
2766 with the same message size as in ssl3_get_certificate_request().
2767 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
2768 messages might inadvertently be reject as too long.
2769 [Petr Lampa <lampa@fee.vutbr.cz>]
2771 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
2774 *) Modified SSL library such that the verify_callback that has been set
2775 specificly for an SSL object with SSL_set_verify() is actually being
2776 used. Before the change, a verify_callback set with this function was
2777 ignored and the verify_callback() set in the SSL_CTX at the time of
2778 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
2779 to allow the necessary settings.
2782 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
2783 explicitly to NULL, as at least on Solaris 8 this seems not always to be
2784 done automatically (in contradiction to the requirements of the C
2785 standard). This made problems when used from OpenSSH.
2788 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
2789 dh->length and always used
2791 BN_rand_range(priv_key, dh->p).
2793 BN_rand_range() is not necessary for Diffie-Hellman, and this
2794 specific range makes Diffie-Hellman unnecessarily inefficient if
2795 dh->length (recommended exponent length) is much smaller than the
2796 length of dh->p. We could use BN_rand_range() if the order of
2797 the subgroup was stored in the DH structure, but we only have
2802 BN_rand(priv_key, l, ...)
2804 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
2810 RSA_eay_public_encrypt
2811 RSA_eay_private_decrypt
2812 RSA_eay_private_encrypt (signing)
2813 RSA_eay_public_decrypt (signature verification)
2815 (default implementations for RSA_public_encrypt,
2816 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
2817 always reject numbers >= n.
2820 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
2821 to synchronize access to 'locking_thread'. This is necessary on
2822 systems where access to 'locking_thread' (an 'unsigned long'
2823 variable) is not atomic.
2826 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
2827 *before* setting the 'crypto_lock_rand' flag. The previous code had
2828 a race condition if 0 is a valid thread ID.
2829 [Travis Vitek <vitek@roguewave.com>]
2831 *) Add support for shared libraries under Irix.
2832 [Albert Chin-A-Young <china@thewrittenword.com>]
2834 *) Add configuration option to build on Linux on both big-endian and
2836 [Ralf Baechle <ralf@uni-koblenz.de>]
2838 *) Add the possibility to create shared libraries on HP-UX.
2841 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
2843 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
2844 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
2845 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
2846 PRNG state recovery was possible based on the output of
2847 one PRNG request appropriately sized to gain knowledge on
2848 'md' followed by enough consecutive 1-byte PRNG requests
2849 to traverse all of 'state'.
2851 1. When updating 'md_local' (the current thread's copy of 'md')
2852 during PRNG output generation, hash all of the previous
2853 'md_local' value, not just the half used for PRNG output.
2855 2. Make the number of bytes from 'state' included into the hash
2856 independent from the number of PRNG bytes requested.
2858 The first measure alone would be sufficient to avoid
2859 Markku-Juhani's attack. (Actually it had never occurred
2860 to me that the half of 'md_local' used for chaining was the
2861 half from which PRNG output bytes were taken -- I had always
2862 assumed that the secret half would be used.) The second
2863 measure makes sure that additional data from 'state' is never
2864 mixed into 'md_local' in small portions; this heuristically
2865 further strengthens the PRNG.
2868 *) Fix crypto/bn/asm/mips3.s.
2871 *) When only the key is given to "enc", the IV is undefined. Print out
2872 an error message in this case.
2875 *) Handle special case when X509_NAME is empty in X509 printing routines.
2878 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
2879 positive and less than q.
2882 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
2883 used: it isn't thread safe and the add_lock_callback should handle
2885 [Paul Rose <Paul.Rose@bridge.com>]
2887 *) Verify that incoming data obeys the block size in
2888 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
2892 [Ulf Möller, Bodo Möller]
2894 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
2895 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
2896 when fixing the server behaviour for backwards-compatible 'client
2897 hello' messages. (Note that the attack is impractical against
2898 SSL 3.0 and TLS 1.0 anyway because length and version checking
2899 means that the probability of guessing a valid ciphertext is
2900 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
2903 Before 0.9.5, the countermeasure (hide the error by generating a
2904 random 'decryption result') did not work properly because
2905 ERR_clear_error() was missing, meaning that SSL_get_error() would
2906 detect the supposedly ignored error.
2908 Both problems are now fixed.
2911 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
2912 (previously it was 1024).
2915 *) Fix for compatibility mode trust settings: ignore trust settings
2916 unless some valid trust or reject settings are present.
2919 *) Fix for blowfish EVP: its a variable length cipher.
2922 *) Fix various bugs related to DSA S/MIME verification. Handle missing
2923 parameters in DSA public key structures and return an error in the
2924 DSA routines if parameters are absent.
2927 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
2928 in the current directory if neither $RANDFILE nor $HOME was set.
2929 RAND_file_name() in 0.9.6a returned NULL in this case. This has
2930 caused some confusion to Windows users who haven't defined $HOME.
2931 Thus RAND_file_name() is changed again: e_os.h can define a
2932 DEFAULT_HOME, which will be used if $HOME is not set.
2933 For Windows, we use "C:"; on other platforms, we still require
2934 environment variables.
2936 *) Move 'if (!initialized) RAND_poll()' into regions protected by
2937 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
2938 having multiple threads call RAND_poll() concurrently.
2941 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
2942 combination of a flag and a thread ID variable.
2943 Otherwise while one thread is in ssleay_rand_bytes (which sets the
2944 flag), *other* threads can enter ssleay_add_bytes without obeying
2945 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
2946 that they do not hold after the first thread unsets add_do_not_lock).
2949 *) Change bctest again: '-x' expressions are not available in all
2953 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
2955 *) Fix a couple of memory leaks in PKCS7_dataDecode()
2956 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
2958 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
2959 the default extension for executables, if any. Also, make the perl
2960 scripts that use symlink() to test if it really exists and use "cp"
2961 if it doesn't. All this made OpenSSL compilable and installable in
2965 *) Fix for asn1_GetSequence() for indefinite length constructed data.
2966 If SEQUENCE is length is indefinite just set c->slen to the total
2967 amount of data available.
2968 [Steve Henson, reported by shige@FreeBSD.org]
2969 [This change does not apply to 0.9.7.]
2971 *) Change bctest to avoid here-documents inside command substitution
2972 (workaround for FreeBSD /bin/sh bug).
2973 For compatibility with Ultrix, avoid shell functions (introduced
2974 in the bctest version that searches along $PATH).
2977 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
2978 with des_encrypt() defined on some operating systems, like Solaris
2982 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
2983 On the Importance of Eliminating Errors in Cryptographic
2984 Computations, J. Cryptology 14 (2001) 2, 101-119,
2985 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
2988 *) MIPS assembler BIGNUM division bug fix.
2991 *) Disabled incorrect Alpha assembler code.
2994 *) Fix PKCS#7 decode routines so they correctly update the length
2995 after reading an EOC for the EXPLICIT tag.
2997 [This change does not apply to 0.9.7.]
2999 *) Fix bug in PKCS#12 key generation routines. This was triggered
3000 if a 3DES key was generated with a 0 initial byte. Include
3001 PKCS12_BROKEN_KEYGEN compilation option to retain the old
3002 (but broken) behaviour.
3005 *) Enhance bctest to search for a working bc along $PATH and print
3007 [Tim Rice <tim@multitalents.net> via Richard Levitte]
3009 *) Fix memory leaks in err.c: free err_data string if necessary;
3010 don't write to the wrong index in ERR_set_error_data.
3013 *) Implement ssl23_peek (analogous to ssl23_read), which previously
3017 *) Replace rdtsc with _emit statements for VC++ version 5.
3018 [Jeremy Cooper <jeremy@baymoo.org>]
3020 *) Make it possible to reuse SSLv2 sessions.
3023 *) In copy_email() check for >= 0 as a return value for
3024 X509_NAME_get_index_by_NID() since 0 is a valid index.
3025 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
3027 *) Avoid coredump with unsupported or invalid public keys by checking if
3028 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
3029 PKCS7_verify() fails with non detached data.
3032 *) Don't use getenv in library functions when run as setuid/setgid.
3033 New function OPENSSL_issetugid().
3036 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
3037 due to incorrect handling of multi-threading:
3039 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
3041 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
3043 3. Count how many times MemCheck_off() has been called so that
3044 nested use can be treated correctly. This also avoids
3045 inband-signalling in the previous code (which relied on the
3046 assumption that thread ID 0 is impossible).
3049 *) Add "-rand" option also to s_client and s_server.
3052 *) Fix CPU detection on Irix 6.x.
3053 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
3054 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3056 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
3059 [This change does not apply to 0.9.7.]
3061 *) Use the cached encoding of an X509_NAME structure rather than
3062 copying it. This is apparently the reason for the libsafe "errors"
3063 but the code is actually correct.
3066 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
3067 Bleichenbacher's DSA attack.
3068 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
3069 to be set and top=0 forces the highest bit to be set; top=-1 is new
3070 and leaves the highest bit random.
3071 [Ulf Moeller, Bodo Moeller]
3073 *) In the NCONF_...-based implementations for CONF_... queries
3074 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
3075 a temporary CONF structure with the data component set to NULL
3076 (which gives segmentation faults in lh_retrieve).
3077 Instead, use NULL for the CONF pointer in CONF_get_string and
3078 CONF_get_number (which may use environment variables) and directly
3079 return NULL from CONF_get_section.
3082 *) Fix potential buffer overrun for EBCDIC.
3085 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
3086 keyUsage if basicConstraints absent for a CA.
3089 *) Make SMIME_write_PKCS7() write mail header values with a format that
3090 is more generally accepted (no spaces before the semicolon), since
3091 some programs can't parse those values properly otherwise. Also make
3092 sure BIO's that break lines after each write do not create invalid
3096 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
3097 macros previously used would not encode an empty SEQUENCE OF
3098 and break the signature.
3100 [This change does not apply to 0.9.7.]
3102 *) Zero the premaster secret after deriving the master secret in
3106 *) Add some EVP_add_digest_alias registrations (as found in
3107 OpenSSL_add_all_digests()) to SSL_library_init()
3108 aka OpenSSL_add_ssl_algorithms(). This provides improved
3109 compatibility with peers using X.509 certificates
3110 with unconventional AlgorithmIdentifier OIDs.
3113 *) Fix for Irix with NO_ASM.
3114 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
3116 *) ./config script fixes.
3117 [Ulf Moeller, Richard Levitte]
3119 *) Fix 'openssl passwd -1'.
3122 *) Change PKCS12_key_gen_asc() so it can cope with non null
3123 terminated strings whose length is passed in the passlen
3124 parameter, for example from PEM callbacks. This was done
3125 by adding an extra length parameter to asc2uni().
3126 [Steve Henson, reported by <oddissey@samsung.co.kr>]
3128 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
3129 call failed, free the DSA structure.
3132 *) Fix to uni2asc() to cope with zero length Unicode strings.
3133 These are present in some PKCS#12 files.
3136 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
3137 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
3138 when writing a 32767 byte record.
3139 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
3141 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
3142 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
3144 (RSA objects have a reference count access to which is protected
3145 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
3146 so they are meant to be shared between threads.)
3147 [Bodo Moeller, Geoff Thorpe; original patch submitted by
3148 "Reddie, Steven" <Steven.Reddie@ca.com>]
3150 *) Fix a deadlock in CRYPTO_mem_leaks().
3153 *) Use better test patterns in bntest.
3156 *) rand_win.c fix for Borland C.
3159 *) BN_rshift bugfix for n == 0.
3162 *) Add a 'bctest' script that checks for some known 'bc' bugs
3163 so that 'make test' does not abort just because 'bc' is broken.
3166 *) Store verify_result within SSL_SESSION also for client side to
3167 avoid potential security hole. (Re-used sessions on the client side
3168 always resulted in verify_result==X509_V_OK, not using the original
3169 result of the server certificate verification.)
3172 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
3173 SSL3_RT_APPLICATION_DATA, return 0.
3174 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
3178 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
3179 releases, have been re-implemented by renaming the previous
3180 implementations of ssl2_read and ssl3_read to ssl2_read_internal
3181 and ssl3_read_internal, respectively, and adding 'peek' parameters
3182 to them. The new ssl[23]_{read,peek} functions are calls to
3183 ssl[23]_read_internal with the 'peek' flag set appropriately.
3184 A 'peek' parameter has also been added to ssl3_read_bytes, which
3185 does the actual work for ssl3_read_internal.
3188 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
3189 the method-specific "init()" handler. Also clean up ex_data after
3190 calling the method-specific "finish()" handler. Previously, this was
3191 happening the other way round.
3194 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
3195 The previous value, 12, was not always sufficient for BN_mod_exp().
3198 *) Make sure that shared libraries get the internal name engine with
3199 the full version number and not just 0. This should mark the
3200 shared libraries as not backward compatible. Of course, this should
3201 be changed again when we can guarantee backward binary compatibility.
3204 *) Fix typo in get_cert_by_subject() in by_dir.c
3205 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
3207 *) Rework the system to generate shared libraries:
3209 - Make note of the expected extension for the shared libraries and
3210 if there is a need for symbolic links from for example libcrypto.so.0
3211 to libcrypto.so.0.9.7. There is extended info in Configure for
3214 - Make as few rebuilds of the shared libraries as possible.
3216 - Still avoid linking the OpenSSL programs with the shared libraries.
3218 - When installing, install the shared libraries separately from the
3222 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
3224 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
3225 and not in SSL_clear because the latter is also used by the
3226 accept/connect functions; previously, the settings made by
3227 SSL_set_read_ahead would be lost during the handshake.
3228 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
3230 *) Correct util/mkdef.pl to be selective about disabled algorithms.
3231 Previously, it would create entries for disableed algorithms no
3235 *) Added several new manual pages for SSL_* function.
3238 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
3240 *) In ssl23_get_client_hello, generate an error message when faced
3241 with an initial SSL 3.0/TLS record that is too small to contain the
3242 first two bytes of the ClientHello message, i.e. client_version.
3243 (Note that this is a pathologic case that probably has never happened
3244 in real life.) The previous approach was to use the version number
3245 from the record header as a substitute; but our protocol choice
3246 should not depend on that one because it is not authenticated
3247 by the Finished messages.
3250 *) More robust randomness gathering functions for Windows.
3251 [Jeffrey Altman <jaltman@columbia.edu>]
3253 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
3254 not set then we don't setup the error code for issuer check errors
3255 to avoid possibly overwriting other errors which the callback does
3256 handle. If an application does set the flag then we assume it knows
3257 what it is doing and can handle the new informational codes
3261 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
3262 a general "ANY" type, as such it should be able to decode anything
3263 including tagged types. However it didn't check the class so it would
3264 wrongly interpret tagged types in the same way as their universal
3265 counterpart and unknown types were just rejected. Changed so that the
3266 tagged and unknown types are handled in the same way as a SEQUENCE:
3267 that is the encoding is stored intact. There is also a new type
3268 "V_ASN1_OTHER" which is used when the class is not universal, in this
3269 case we have no idea what the actual type is so we just lump them all
3273 *) On VMS, stdout may very well lead to a file that is written to
3274 in a record-oriented fashion. That means that every write() will
3275 write a separate record, which will be read separately by the
3276 programs trying to read from it. This can be very confusing.
3278 The solution is to put a BIO filter in the way that will buffer
3279 text until a linefeed is reached, and then write everything a
3280 line at a time, so every record written will be an actual line,
3281 not chunks of lines and not (usually doesn't happen, but I've
3282 seen it once) several lines in one record. BIO_f_linebuffer() is
3285 Currently, it's a VMS-only method, because that's where it has
3286 been tested well enough.
3289 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
3290 it can return incorrect results.
3291 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
3292 but it was in 0.9.6-beta[12].)
3295 *) Disable the check for content being present when verifying detached
3296 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
3297 include zero length content when signing messages.
3300 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
3301 BIO_ctrl (for BIO pairs).
3304 *) Add DSO method for VMS.
3307 *) Bug fix: Montgomery multiplication could produce results with the
3311 *) Add RPM specification openssl.spec and modify it to build three
3312 packages. The default package contains applications, application
3313 documentation and run-time libraries. The devel package contains
3314 include files, static libraries and function documentation. The
3315 doc package contains the contents of the doc directory. The original
3316 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
3319 *) Add a large number of documentation files for many SSL routines.
3320 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
3322 *) Add a configuration entry for Sony News 4.
3323 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
3325 *) Don't set the two most significant bits to one when generating a
3326 random number < q in the DSA library.
3329 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
3330 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
3331 the underlying transport is blocking) if a handshake took place.
3332 (The default behaviour is needed by applications such as s_client
3333 and s_server that use select() to determine when to use SSL_read;
3334 but for applications that know in advance when to expect data, it
3335 just makes things more complicated.)
3338 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
3342 *) Add a few more EBCDIC conditionals that make `req' and `x509'
3343 work better on such systems.
3344 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
3346 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
3347 Update PKCS12_parse() so it copies the friendlyName and the
3348 keyid to the certificates aux info.
3351 *) Fix bug in PKCS7_verify() which caused an infinite loop
3352 if there was more than one signature.
3353 [Sven Uszpelkat <su@celocom.de>]
3355 *) Major change in util/mkdef.pl to include extra information
3356 about each symbol, as well as presentig variables as well
3357 as functions. This change means that there's n more need
3358 to rebuild the .num files when some algorithms are excluded.
3361 *) Allow the verify time to be set by an application,
3362 rather than always using the current time.
3365 *) Phase 2 verify code reorganisation. The certificate
3366 verify code now looks up an issuer certificate by a
3367 number of criteria: subject name, authority key id
3368 and key usage. It also verifies self signed certificates
3369 by the same criteria. The main comparison function is
3370 X509_check_issued() which performs these checks.
3372 Lot of changes were necessary in order to support this
3373 without completely rewriting the lookup code.
3375 Authority and subject key identifier are now cached.
3377 The LHASH 'certs' is X509_STORE has now been replaced
3378 by a STACK_OF(X509_OBJECT). This is mainly because an
3379 LHASH can't store or retrieve multiple objects with
3380 the same hash value.
3382 As a result various functions (which were all internal
3383 use only) have changed to handle the new X509_STORE
3384 structure. This will break anything that messed round
3385 with X509_STORE internally.
3387 The functions X509_STORE_add_cert() now checks for an
3388 exact match, rather than just subject name.
3390 The X509_STORE API doesn't directly support the retrieval
3391 of multiple certificates matching a given criteria, however
3392 this can be worked round by performing a lookup first
3393 (which will fill the cache with candidate certificates)
3394 and then examining the cache for matches. This is probably
3395 the best we can do without throwing out X509_LOOKUP
3396 entirely (maybe later...).
3398 The X509_VERIFY_CTX structure has been enhanced considerably.
3400 All certificate lookup operations now go via a get_issuer()
3401 callback. Although this currently uses an X509_STORE it
3402 can be replaced by custom lookups. This is a simple way
3403 to bypass the X509_STORE hackery necessary to make this
3404 work and makes it possible to use more efficient techniques
3405 in future. A very simple version which uses a simple
3406 STACK for its trusted certificate store is also provided
3407 using X509_STORE_CTX_trusted_stack().
3409 The verify_cb() and verify() callbacks now have equivalents
3410 in the X509_STORE_CTX structure.
3412 X509_STORE_CTX also has a 'flags' field which can be used
3413 to customise the verify behaviour.
3416 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
3417 excludes S/MIME capabilities.
3420 *) When a certificate request is read in keep a copy of the
3421 original encoding of the signed data and use it when outputing
3422 again. Signatures then use the original encoding rather than
3423 a decoded, encoded version which may cause problems if the
3424 request is improperly encoded.
3427 *) For consistency with other BIO_puts implementations, call
3428 buffer_write(b, ...) directly in buffer_puts instead of calling
3431 In BIO_puts, increment b->num_write as in BIO_write.
3432 [Peter.Sylvester@EdelWeb.fr]
3434 *) Fix BN_mul_word for the case where the word is 0. (We have to use
3435 BN_zero, we may not return a BIGNUM with an array consisting of
3439 *) Avoid calling abort() from within the library when problems are
3440 detected, except if preprocessor symbols have been defined
3441 (such as REF_CHECK, BN_DEBUG etc.).
3444 *) New openssl application 'rsautl'. This utility can be
3445 used for low level RSA operations. DER public key
3446 BIO/fp routines also added.
3449 *) New Configure entry and patches for compiling on QNX 4.
3450 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
3452 *) A demo state-machine implementation was sponsored by
3453 Nuron (http://www.nuron.com/) and is now available in
3454 demos/state_machine.
3457 *) New options added to the 'dgst' utility for signature
3458 generation and verification.
3461 *) Unrecognized PKCS#7 content types are now handled via a
3462 catch all ASN1_TYPE structure. This allows unsupported
3463 types to be stored as a "blob" and an application can
3464 encode and decode it manually.
3467 *) Fix various signed/unsigned issues to make a_strex.c
3469 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
3471 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
3472 length if passed a buffer. ASN1_INTEGER_to_BN failed
3473 if passed a NULL BN and its argument was negative.
3474 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
3476 *) Modification to PKCS#7 encoding routines to output definite
3477 length encoding. Since currently the whole structures are in
3478 memory there's not real point in using indefinite length
3479 constructed encoding. However if OpenSSL is compiled with
3480 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
3483 *) Added BIO_vprintf() and BIO_vsnprintf().
3486 *) Added more prefixes to parse for in the the strings written
3487 through a logging bio, to cover all the levels that are available
3488 through syslog. The prefixes are now:
3490 PANIC, EMERG, EMR => LOG_EMERG
3491 ALERT, ALR => LOG_ALERT
3492 CRIT, CRI => LOG_CRIT
3493 ERROR, ERR => LOG_ERR
3494 WARNING, WARN, WAR => LOG_WARNING
3495 NOTICE, NOTE, NOT => LOG_NOTICE
3496 INFO, INF => LOG_INFO
3497 DEBUG, DBG => LOG_DEBUG
3499 and as before, if none of those prefixes are present at the
3500 beginning of the string, LOG_ERR is chosen.
3502 On Win32, the LOG_* levels are mapped according to this:
3504 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
3505 LOG_WARNING => EVENTLOG_WARNING_TYPE
3506 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
3510 *) Made it possible to reconfigure with just the configuration
3511 argument "reconf" or "reconfigure". The command line arguments
3512 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
3513 and are retrieved from there when reconfiguring.
3517 [Assar Westerlund <assar@sics.se>, Richard Levitte]
3519 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
3522 *) The obj_dat.pl script was messing up the sorting of object
3523 names. The reason was that it compared the quoted version
3524 of strings as a result "OCSP" > "OCSP Signing" because
3525 " > SPACE. Changed script to store unquoted versions of
3526 names and add quotes on output. It was also omitting some
3527 names from the lookup table if they were given a default
3528 value (that is if SN is missing it is given the same
3529 value as LN and vice versa), these are now added on the
3530 grounds that if an object has a name we should be able to
3531 look it up. Finally added warning output when duplicate
3532 short or long names are found.
3535 *) Changes needed for Tandem NSK.
3536 [Scott Uroff <scott@xypro.com>]
3538 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
3539 RSA_padding_check_SSLv23(), special padding was never detected
3540 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
3541 version rollback attacks was not effective.
3543 In s23_clnt.c, don't use special rollback-attack detection padding
3544 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
3545 client; similarly, in s23_srvr.c, don't do the rollback check if
3546 SSL 2.0 is the only protocol enabled in the server.
3549 *) Make it possible to get hexdumps of unprintable data with 'openssl
3550 asn1parse'. By implication, the functions ASN1_parse_dump() and
3551 BIO_dump_indent() are added.
3554 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
3555 these print out strings and name structures based on various
3556 flags including RFC2253 support and proper handling of
3557 multibyte characters. Added options to the 'x509' utility
3558 to allow the various flags to be set.
3561 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
3562 Also change the functions X509_cmp_current_time() and
3563 X509_gmtime_adj() work with an ASN1_TIME structure,
3564 this will enable certificates using GeneralizedTime in validity
3565 dates to be checked.
3568 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
3569 negative public key encodings) on by default,
3570 NO_NEG_PUBKEY_BUG can be set to disable it.
3573 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
3574 content octets. An i2c_ASN1_OBJECT is unnecessary because
3575 the encoding can be trivially obtained from the structure.
3578 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
3579 not read locks (CRYPTO_r_[un]lock).
3582 *) A first attempt at creating official support for shared
3583 libraries through configuration. I've kept it so the
3584 default is static libraries only, and the OpenSSL programs
3585 are always statically linked for now, but there are
3586 preparations for dynamic linking in place.
3587 This has been tested on Linux and Tru64.
3590 *) Randomness polling function for Win9x, as described in:
3591 Peter Gutmann, Software Generation of Practically Strong
3595 *) Fix so PRNG is seeded in req if using an already existing
3599 *) New options to smime application. -inform and -outform
3600 allow alternative formats for the S/MIME message including
3601 PEM and DER. The -content option allows the content to be
3602 specified separately. This should allow things like Netscape
3603 form signing output easier to verify.
3606 *) Fix the ASN1 encoding of tags using the 'long form'.
3609 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
3610 STRING types. These convert content octets to and from the
3611 underlying type. The actual tag and length octets are
3612 already assumed to have been read in and checked. These
3613 are needed because all other string types have virtually
3614 identical handling apart from the tag. By having versions
3615 of the ASN1 functions that just operate on content octets
3616 IMPLICIT tagging can be handled properly. It also allows
3617 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
3618 and ASN1_INTEGER are identical apart from the tag.
3621 *) Change the handling of OID objects as follows:
3623 - New object identifiers are inserted in objects.txt, following
3624 the syntax given in objects.README.
3625 - objects.pl is used to process obj_mac.num and create a new
3627 - obj_dat.pl is used to create a new obj_dat.h, using the data in
3630 This is currently kind of a hack, and the perl code in objects.pl
3631 isn't very elegant, but it works as I intended. The simplest way
3632 to check that it worked correctly is to look in obj_dat.h and
3633 check the array nid_objs and make sure the objects haven't moved
3634 around (this is important!). Additions are OK, as well as
3635 consistent name changes.
3638 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
3641 *) Addition of the command line parameter '-rand file' to 'openssl req'.
3642 The given file adds to whatever has already been seeded into the
3643 random pool through the RANDFILE configuration file option or
3644 environment variable, or the default random state file.
3647 *) mkstack.pl now sorts each macro group into lexical order.
3648 Previously the output order depended on the order the files
3649 appeared in the directory, resulting in needless rewriting
3653 *) Patches to make OpenSSL compile under Win32 again. Mostly
3654 work arounds for the VC++ problem that it treats func() as
3655 func(void). Also stripped out the parts of mkdef.pl that
3656 added extra typesafe functions: these no longer exist.
3659 *) Reorganisation of the stack code. The macros are now all
3660 collected in safestack.h . Each macro is defined in terms of
3661 a "stack macro" of the form SKM_<name>(type, a, b). The
3662 DEBUG_SAFESTACK is now handled in terms of function casts,
3663 this has the advantage of retaining type safety without the
3664 use of additional functions. If DEBUG_SAFESTACK is not defined
3665 then the non typesafe macros are used instead. Also modified the
3666 mkstack.pl script to handle the new form. Needs testing to see
3667 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
3668 the default if no major problems. Similar behaviour for ASN1_SET_OF
3669 and PKCS12_STACK_OF.
3672 *) When some versions of IIS use the 'NET' form of private key the
3673 key derivation algorithm is different. Normally MD5(password) is
3674 used as a 128 bit RC4 key. In the modified case
3675 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
3676 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
3677 as the old Netscape_RSA functions except they have an additional
3678 'sgckey' parameter which uses the modified algorithm. Also added
3679 an -sgckey command line option to the rsa utility. Thanks to
3680 Adrian Peck <bertie@ncipher.com> for posting details of the modified
3681 algorithm to openssl-dev.
3684 *) The evp_local.h macros were using 'c.##kname' which resulted in
3685 invalid expansion on some systems (SCO 5.0.5 for example).
3686 Corrected to 'c.kname'.
3687 [Phillip Porch <root@theporch.com>]
3689 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
3690 a STACK of email addresses from a certificate or request, these look
3691 in the subject name and the subject alternative name extensions and
3692 omit any duplicate addresses.
3695 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
3696 This makes DSA verification about 2 % faster.
3699 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
3700 (meaning that now 2^5 values will be precomputed, which is only 4 KB
3701 plus overhead for 1024 bit moduli).
3702 This makes exponentiations about 0.5 % faster for 1024 bit
3703 exponents (as measured by "openssl speed rsa2048").
3706 *) Rename memory handling macros to avoid conflicts with other
3708 Malloc => OPENSSL_malloc
3709 Malloc_locked => OPENSSL_malloc_locked
3710 Realloc => OPENSSL_realloc
3711 Free => OPENSSL_free
3714 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
3715 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
3718 *) CygWin32 support.
3719 [John Jarvie <jjarvie@newsguy.com>]
3721 *) The type-safe stack code has been rejigged. It is now only compiled
3722 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
3723 by default all type-specific stack functions are "#define"d back to
3724 standard stack functions. This results in more streamlined output
3725 but retains the type-safety checking possibilities of the original
3729 *) The STACK code has been cleaned up, and certain type declarations
3730 that didn't make a lot of sense have been brought in line. This has
3731 also involved a cleanup of sorts in safestack.h to more correctly
3732 map type-safe stack functions onto their plain stack counterparts.
3733 This work has also resulted in a variety of "const"ifications of
3734 lots of the code, especially "_cmp" operations which should normally
3735 be prototyped with "const" parameters anyway.
3738 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
3739 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
3740 (The PRNG state consists of two parts, the large pool 'state' and 'md',
3741 where all of 'md' is used each time the PRNG is used, but 'state'
3742 is used only indexed by a cyclic counter. As entropy may not be
3743 well distributed from the beginning, 'md' is important as a
3744 chaining variable. However, the output function chains only half
3745 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
3746 all of 'md', and seeding with STATE_SIZE dummy bytes will result
3747 in all of 'state' being rewritten, with the new values depending
3748 on virtually all of 'md'. This overcomes the 80 bit limitation.)
3751 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
3752 the handshake is continued after ssl_verify_cert_chain();
3753 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
3754 can lead to 'unexplainable' connection aborts later.
3755 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
3757 *) Major EVP API cipher revision.
3758 Add hooks for extra EVP features. This allows various cipher
3759 parameters to be set in the EVP interface. Support added for variable
3760 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
3761 setting of RC2 and RC5 parameters.
3763 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
3766 Remove lots of duplicated code from the EVP library. For example *every*
3767 cipher init() function handles the 'iv' in the same way according to the
3768 cipher mode. They also all do nothing if the 'key' parameter is NULL and
3769 for CFB and OFB modes they zero ctx->num.
3771 New functionality allows removal of S/MIME code RC2 hack.
3773 Most of the routines have the same form and so can be declared in terms
3776 By shifting this to the top level EVP_CipherInit() it can be removed from
3777 all individual ciphers. If the cipher wants to handle IVs or keys
3778 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
3781 Change lots of functions like EVP_EncryptUpdate() to now return a
3782 value: although software versions of the algorithms cannot fail
3783 any installed hardware versions can.
3786 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
3787 this option is set, tolerate broken clients that send the negotiated
3788 protocol version number instead of the requested protocol version
3792 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
3793 i.e. non-zero for export ciphersuites, zero otherwise.
3794 Previous versions had this flag inverted, inconsistent with
3795 rsa_tmp_cb (..._TMP_RSA_CB).
3796 [Bodo Moeller; problem reported by Amit Chopra]
3798 *) Add missing DSA library text string. Work around for some IIS
3799 key files with invalid SEQUENCE encoding.
3802 *) Add a document (doc/standards.txt) that list all kinds of standards
3803 and so on that are implemented in OpenSSL.
3806 *) Enhance c_rehash script. Old version would mishandle certificates
3807 with the same subject name hash and wouldn't handle CRLs at all.
3808 Added -fingerprint option to crl utility, to support new c_rehash
3812 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
3815 *) Fix for SSL server purpose checking. Server checking was
3816 rejecting certificates which had extended key usage present
3817 but no ssl client purpose.
3818 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
3820 *) Make PKCS#12 code work with no password. The PKCS#12 spec
3821 is a little unclear about how a blank password is handled.
3822 Since the password in encoded as a BMPString with terminating
3823 double NULL a zero length password would end up as just the
3824 double NULL. However no password at all is different and is
3825 handled differently in the PKCS#12 key generation code. NS
3826 treats a blank password as zero length. MSIE treats it as no
3827 password on export: but it will try both on import. We now do
3828 the same: PKCS12_parse() tries zero length and no password if
3829 the password is set to "" or NULL (NULL is now a valid password:
3830 it wasn't before) as does the pkcs12 application.
3833 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
3834 perror when PEM_read_bio_X509_REQ fails, the error message must
3835 be obtained from the error queue.
3838 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
3839 it in ERR_remove_state if appropriate, and change ERR_get_state
3840 accordingly to avoid race conditions (this is necessary because
3841 thread_hash is no longer constant once set).
3844 *) Bugfix for linux-elf makefile.one.
3847 *) RSA_get_default_method() will now cause a default
3848 RSA_METHOD to be chosen if one doesn't exist already.
3849 Previously this was only set during a call to RSA_new()
3850 or RSA_new_method(NULL) meaning it was possible for
3851 RSA_get_default_method() to return NULL.
3854 *) Added native name translation to the existing DSO code
3855 that will convert (if the flag to do so is set) filenames
3856 that are sufficiently small and have no path information
3857 into a canonical native form. Eg. "blah" converted to
3858 "libblah.so" or "blah.dll" etc.
3861 *) New function ERR_error_string_n(e, buf, len) which is like
3862 ERR_error_string(e, buf), but writes at most 'len' bytes
3863 including the 0 terminator. For ERR_error_string_n, 'buf'
3865 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
3867 *) CONF library reworked to become more general. A new CONF
3868 configuration file reader "class" is implemented as well as a
3869 new functions (NCONF_*, for "New CONF") to handle it. The now
3870 old CONF_* functions are still there, but are reimplemented to
3871 work in terms of the new functions. Also, a set of functions
3872 to handle the internal storage of the configuration data is
3873 provided to make it easier to write new configuration file
3874 reader "classes" (I can definitely see something reading a
3875 configuration file in XML format, for example), called _CONF_*,
3876 or "the configuration storage API"...
3878 The new configuration file reading functions are:
3880 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
3881 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
3883 NCONF_default, NCONF_WIN32
3885 NCONF_dump_fp, NCONF_dump_bio
3887 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
3888 NCONF_new creates a new CONF object. This works in the same way
3889 as other interfaces in OpenSSL, like the BIO interface.
3890 NCONF_dump_* dump the internal storage of the configuration file,
3891 which is useful for debugging. All other functions take the same
3892 arguments as the old CONF_* functions wth the exception of the
3893 first that must be a `CONF *' instead of a `LHASH *'.
3895 To make it easer to use the new classes with the old CONF_* functions,
3896 the function CONF_set_default_method is provided.
3899 *) Add '-tls1' option to 'openssl ciphers', which was already
3900 mentioned in the documentation but had not been implemented.
3901 (This option is not yet really useful because even the additional
3902 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
3905 *) Initial DSO code added into libcrypto for letting OpenSSL (and
3906 OpenSSL-based applications) load shared libraries and bind to
3907 them in a portable way.
3908 [Geoff Thorpe, with contributions from Richard Levitte]
3910 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
3912 *) Make sure _lrotl and _lrotr are only used with MSVC.
3914 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
3915 (the default implementation of RAND_status).
3917 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
3918 to '-clrext' (= clear extensions), as intended and documented.
3919 [Bodo Moeller; inconsistency pointed out by Michael Attili
3922 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
3923 was larger than the MD block size.
3924 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
3926 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
3927 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
3928 using the passed key: if the passed key was a private key the result
3929 of X509_print(), for example, would be to print out all the private key
3933 *) des_quad_cksum() byte order bug fix.
3934 [Ulf Möller, using the problem description in krb4-0.9.7, where
3935 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
3937 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
3939 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
3941 *) For easily testing in shell scripts whether some command
3942 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
3943 returns with exit code 0 iff no command of the given name is available.
3944 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
3945 the output goes to stdout and nothing is printed to stderr.
3946 Additional arguments are always ignored.
3948 Since for each cipher there is a command of the same name,
3949 the 'no-cipher' compilation switches can be tested this way.
3951 ('openssl no-XXX' is not able to detect pseudo-commands such
3952 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
3955 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
3958 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
3959 is set; it will be thrown away anyway because each handshake creates
3961 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
3962 to parameters -- in previous versions (since OpenSSL 0.9.3) the
3963 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
3964 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
3967 *) New s_client option -ign_eof: EOF at stdin is ignored, and
3968 'Q' and 'R' lose their special meanings (quit/renegotiate).
3969 This is part of what -quiet does; unlike -quiet, -ign_eof
3970 does not suppress any output.
3973 *) Add compatibility options to the purpose and trust code. The
3974 purpose X509_PURPOSE_ANY is "any purpose" which automatically
3975 accepts a certificate or CA, this was the previous behaviour,
3976 with all the associated security issues.
3978 X509_TRUST_COMPAT is the old trust behaviour: only and
3979 automatically trust self signed roots in certificate store. A
3980 new trust setting X509_TRUST_DEFAULT is used to specify that
3981 a purpose has no associated trust setting and it should instead
3982 use the value in the default purpose.
3985 *) Fix the PKCS#8 DSA private key code so it decodes keys again
3986 and fix a memory leak.
3989 *) In util/mkerr.pl (which implements 'make errors'), preserve
3990 reason strings from the previous version of the .c file, as
3991 the default to have only downcase letters (and digits) in
3992 automatically generated reasons codes is not always appropriate.
3995 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
3996 using strerror. Previously, ERR_reason_error_string() returned
3997 library names as reason strings for SYSerr; but SYSerr is a special
3998 case where small numbers are errno values, not library numbers.
4001 *) Add '-dsaparam' option to 'openssl dhparam' application. This
4002 converts DSA parameters into DH parameters. (When creating parameters,
4003 DSA_generate_parameters is used.)
4006 *) Include 'length' (recommended exponent length) in C code generated
4007 by 'openssl dhparam -C'.
4010 *) The second argument to set_label in perlasm was already being used
4011 so couldn't be used as a "file scope" flag. Moved to third argument
4015 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
4016 instead of RAND_bytes for encryption IVs and salts.
4019 *) Include RAND_status() into RAND_METHOD instead of implementing
4020 it only for md_rand.c Otherwise replacing the PRNG by calling
4021 RAND_set_rand_method would be impossible.
4024 *) Don't let DSA_generate_key() enter an infinite loop if the random
4025 number generation fails.
4028 *) New 'rand' application for creating pseudo-random output.
4031 *) Added configuration support for Linux/IA64
4032 [Rolf Haberrecker <rolf@suse.de>]
4034 *) Assembler module support for Mingw32.
4037 *) Shared library support for HPUX (in shlib/).
4038 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
4040 *) Shared library support for Solaris gcc.
4041 [Lutz Behnke <behnke@trustcenter.de>]
4043 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
4045 *) PKCS7_encrypt() was adding text MIME headers twice because they
4046 were added manually and by SMIME_crlf_copy().
4049 *) In bntest.c don't call BN_rand with zero bits argument.
4050 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
4052 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
4053 case was implemented. This caused BN_div_recp() to fail occasionally.
4056 *) Add an optional second argument to the set_label() in the perl
4057 assembly language builder. If this argument exists and is set
4058 to 1 it signals that the assembler should use a symbol whose
4059 scope is the entire file, not just the current function. This
4060 is needed with MASM which uses the format label:: for this scope.
4061 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
4063 *) Change the ASN1 types so they are typedefs by default. Before
4064 almost all types were #define'd to ASN1_STRING which was causing
4065 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
4069 *) Change names of new functions to the new get1/get0 naming
4070 convention: After 'get1', the caller owns a reference count
4071 and has to call ..._free; 'get0' returns a pointer to some
4072 data structure without incrementing reference counters.
4073 (Some of the existing 'get' functions increment a reference
4074 counter, some don't.)
4075 Similarly, 'set1' and 'add1' functions increase reference
4076 counters or duplicate objects.
4079 *) Allow for the possibility of temp RSA key generation failure:
4080 the code used to assume it always worked and crashed on failure.
4083 *) Fix potential buffer overrun problem in BIO_printf().
4084 [Ulf Möller, using public domain code by Patrick Powell; problem
4085 pointed out by David Sacerdote <das33@cornell.edu>]
4087 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
4088 RAND_egd() and RAND_status(). In the command line application,
4089 the EGD socket can be specified like a seed file using RANDFILE
4093 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
4094 Some CAs (e.g. Verisign) distribute certificates in this form.
4097 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
4098 list to exclude them. This means that no special compilation option
4099 is needed to use anonymous DH: it just needs to be included in the
4103 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
4104 EVP_MD_type. The old functionality is available in a new macro called
4105 EVP_MD_md(). Change code that uses it and update docs.
4108 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
4109 where the 'void *' argument is replaced by a function pointer argument.
4110 Previously 'void *' was abused to point to functions, which works on
4111 many platforms, but is not correct. As these functions are usually
4112 called by macros defined in OpenSSL header files, most source code
4113 should work without changes.
4116 *) <openssl/opensslconf.h> (which is created by Configure) now contains
4117 sections with information on -D... compiler switches used for
4118 compiling the library so that applications can see them. To enable
4119 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
4120 must be defined. E.g.,
4121 #define OPENSSL_ALGORITHM_DEFINES
4122 #include <openssl/opensslconf.h>
4123 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
4124 [Richard Levitte, Ulf and Bodo Möller]
4126 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
4130 *) Change the 'other' type in certificate aux info to a STACK_OF
4131 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
4132 the required ASN1 format: arbitrary types determined by an OID.
4135 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
4136 argument to 'req'. This is not because the function is newer or
4137 better than others it just uses the work 'NEW' in the certificate
4138 request header lines. Some software needs this.
4141 *) Reorganise password command line arguments: now passwords can be
4142 obtained from various sources. Delete the PEM_cb function and make
4143 it the default behaviour: i.e. if the callback is NULL and the
4144 usrdata argument is not NULL interpret it as a null terminated pass
4145 phrase. If usrdata and the callback are NULL then the pass phrase
4146 is prompted for as usual.
4149 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
4150 the support is automatically enabled. The resulting binaries will
4151 autodetect the card and use it if present.
4152 [Ben Laurie and Compaq Inc.]
4154 *) Work around for Netscape hang bug. This sends certificate request
4155 and server done in one record. Since this is perfectly legal in the
4156 SSL/TLS protocol it isn't a "bug" option and is on by default. See
4157 the bugs/SSLv3 entry for more info.
4160 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
4163 *) Add -rand argument to smime and pkcs12 applications and read/write
4167 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
4170 *) Add command line password options to the remaining applications.
4173 *) Bug fix for BN_div_recp() for numerators with an even number of
4177 *) More tests in bntest.c, and changed test_bn output.
4180 *) ./config recognizes MacOS X now.
4183 *) Bug fix for BN_div() when the first words of num and divsor are
4184 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
4187 *) Add support for various broken PKCS#8 formats, and command line
4188 options to produce them.
4191 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
4192 get temporary BIGNUMs from a BN_CTX.
4195 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
4199 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
4200 include a #define from the old name to the new. The original intent
4201 was that statically linked binaries could for example just call
4202 SSLeay_add_all_ciphers() to just add ciphers to the table and not
4203 link with digests. This never worked becayse SSLeay_add_all_digests()
4204 and SSLeay_add_all_ciphers() were in the same source file so calling
4205 one would link with the other. They are now in separate source files.
4208 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
4211 *) Use a less unusual form of the Miller-Rabin primality test (it used
4212 a binary algorithm for exponentiation integrated into the Miller-Rabin
4213 loop, our standard modexp algorithms are faster).
4216 *) Support for the EBCDIC character set completed.
4217 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
4219 *) Source code cleanups: use const where appropriate, eliminate casts,
4220 use void * instead of char * in lhash.
4223 *) Bugfix: ssl3_send_server_key_exchange was not restartable
4224 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
4225 this the server could overwrite ephemeral keys that the client
4229 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
4230 using 50 iterations of the Rabin-Miller test.
4232 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
4233 iterations of the Rabin-Miller test as required by the appendix
4234 to FIPS PUB 186[-1]) instead of DSA_is_prime.
4235 As BN_is_prime_fasttest includes trial division, DSA parameter
4236 generation becomes much faster.
4238 This implies a change for the callback functions in DSA_is_prime
4239 and DSA_generate_parameters: The callback function is called once
4240 for each positive witness in the Rabin-Miller test, not just
4241 occasionally in the inner loop; and the parameters to the
4242 callback function now provide an iteration count for the outer
4243 loop rather than for the current invocation of the inner loop.
4244 DSA_generate_parameters additionally can call the callback
4245 function with an 'iteration count' of -1, meaning that a
4246 candidate has passed the trial division test (when q is generated
4247 from an application-provided seed, trial division is skipped).
4250 *) New function BN_is_prime_fasttest that optionally does trial
4251 division before starting the Rabin-Miller test and has
4252 an additional BN_CTX * argument (whereas BN_is_prime always
4253 has to allocate at least one BN_CTX).
4254 'callback(1, -1, cb_arg)' is called when a number has passed the
4255 trial division stage.
4258 *) Fix for bug in CRL encoding. The validity dates weren't being handled
4262 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
4265 *) New function BN_pseudo_rand().
4268 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
4269 bignum version of BN_from_montgomery() with the working code from
4270 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
4274 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
4275 made it impossible to use the same SSL_SESSION data structure in
4276 SSL2 clients in multiple threads.
4279 *) The return value of RAND_load_file() no longer counts bytes obtained
4280 by stat(). RAND_load_file(..., -1) is new and uses the complete file
4281 to seed the PRNG (previously an explicit byte count was required).
4282 [Ulf Möller, Bodo Möller]
4284 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
4285 used (char *) instead of (void *) and had casts all over the place.
4288 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
4291 *) Retain source code compatibility for BN_prime_checks macro:
4292 BN_is_prime(..., BN_prime_checks, ...) now uses
4293 BN_prime_checks_for_size to determine the appropriate number of
4294 Rabin-Miller iterations.
4297 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
4298 DH_CHECK_P_NOT_SAFE_PRIME.
4299 (Check if this is true? OpenPGP calls them "strong".)
4302 *) Merge the functionality of "dh" and "gendh" programs into a new program
4303 "dhparam". The old programs are retained for now but will handle DH keys
4304 (instead of parameters) in future.
4307 *) Make the ciphers, s_server and s_client programs check the return values
4308 when a new cipher list is set.
4311 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
4312 ciphers. Before when the 56bit ciphers were enabled the sorting was
4315 The syntax for the cipher sorting has been extended to support sorting by
4316 cipher-strength (using the strength_bits hard coded in the tables).
4317 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
4319 Fix a bug in the cipher-command parser: when supplying a cipher command
4320 string with an "undefined" symbol (neither command nor alphanumeric
4321 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
4322 an error is flagged.
4324 Due to the strength-sorting extension, the code of the
4325 ssl_create_cipher_list() function was completely rearranged. I hope that
4326 the readability was also increased :-)
4327 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4329 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
4330 for the first serial number and places 2 in the serial number file. This
4331 avoids problems when the root CA is created with serial number zero and
4332 the first user certificate has the same issuer name and serial number
4336 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
4337 the new code. Add documentation for this stuff.
4340 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
4341 X509_*() to X509at_*() on the grounds that they don't handle X509
4342 structures and behave in an analagous way to the X509v3 functions:
4343 they shouldn't be called directly but wrapper functions should be used
4346 So we also now have some wrapper functions that call the X509at functions
4347 when passed certificate requests. (TO DO: similar things can be done with
4348 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
4349 things. Some of these need some d2i or i2d and print functionality
4350 because they handle more complex structures.)
4353 *) Add missing #ifndefs that caused missing symbols when building libssl
4354 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
4355 NO_RSA in ssl/s2*.c.
4356 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
4358 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
4359 has a return value which indicates the quality of the random data
4360 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
4361 error queue. New function RAND_pseudo_bytes() generates output that is
4362 guaranteed to be unique but not unpredictable. RAND_add is like
4363 RAND_seed, but takes an extra argument for an entropy estimate
4364 (RAND_seed always assumes full entropy).
4367 *) Do more iterations of Rabin-Miller probable prime test (specifically,
4368 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
4369 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
4370 in crypto/bn/bn_prime.c for the complete table). This guarantees a
4371 false-positive rate of at most 2^-80 for random input.
4374 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
4377 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
4378 in the 0.9.5 release), this returns the chain
4379 from an X509_CTX structure with a dup of the stack and all
4380 the X509 reference counts upped: so the stack will exist
4381 after X509_CTX_cleanup() has been called. Modify pkcs12.c
4384 Also make SSL_SESSION_print() print out the verify return
4388 *) Add manpage for the pkcs12 command. Also change the default
4389 behaviour so MAC iteration counts are used unless the new
4390 -nomaciter option is used. This improves file security and
4391 only older versions of MSIE (4.0 for example) need it.
4394 *) Honor the no-xxx Configure options when creating .DEF files.
4397 *) Add PKCS#10 attributes to field table: challengePassword,
4398 unstructuredName and unstructuredAddress. These are taken from
4399 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
4400 international characters are used.
4402 More changes to X509_ATTRIBUTE code: allow the setting of types
4403 based on strings. Remove the 'loc' parameter when adding
4404 attributes because these will be a SET OF encoding which is sorted
4408 *) Initial changes to the 'req' utility to allow request generation
4409 automation. This will allow an application to just generate a template
4410 file containing all the field values and have req construct the
4413 Initial support for X509_ATTRIBUTE handling. Stacks of these are
4414 used all over the place including certificate requests and PKCS#7
4415 structures. They are currently handled manually where necessary with
4416 some primitive wrappers for PKCS#7. The new functions behave in a
4417 manner analogous to the X509 extension functions: they allow
4418 attributes to be looked up by NID and added.
4420 Later something similar to the X509V3 code would be desirable to
4421 automatically handle the encoding, decoding and printing of the
4422 more complex types. The string types like challengePassword can
4423 be handled by the string table functions.
4425 Also modified the multi byte string table handling. Now there is
4426 a 'global mask' which masks out certain types. The table itself
4427 can use the flag STABLE_NO_MASK to ignore the mask setting: this
4428 is useful when for example there is only one permissible type
4429 (as in countryName) and using the mask might result in no valid
4433 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
4434 SSL_get_peer_finished to allow applications to obtain the latest
4435 Finished messages sent to the peer or expected from the peer,
4436 respectively. (SSL_get_peer_finished is usually the Finished message
4437 actually received from the peer, otherwise the protocol will be aborted.)
4439 As the Finished message are message digests of the complete handshake
4440 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
4441 be used for external authentication procedures when the authentication
4442 provided by SSL/TLS is not desired or is not enough.
4445 *) Enhanced support for Alpha Linux is added. Now ./config checks if
4446 the host supports BWX extension and if Compaq C is present on the
4447 $PATH. Just exploiting of the BWX extension results in 20-30%
4448 performance kick for some algorithms, e.g. DES and RC4 to mention
4449 a couple. Compaq C in turn generates ~20% faster code for MD5 and
4453 *) Add support for MS "fast SGC". This is arguably a violation of the
4454 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
4455 weak crypto and after checking the certificate is SGC a second one
4456 with strong crypto. MS SGC stops the first handshake after receiving
4457 the server certificate message and sends a second client hello. Since
4458 a server will typically do all the time consuming operations before
4459 expecting any further messages from the client (server key exchange
4460 is the most expensive) there is little difference between the two.
4462 To get OpenSSL to support MS SGC we have to permit a second client
4463 hello message after we have sent server done. In addition we have to
4464 reset the MAC if we do get this second client hello.
4467 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
4468 if a DER encoded private key is RSA or DSA traditional format. Changed
4469 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
4470 format DER encoded private key. Newer code should use PKCS#8 format which
4471 has the key type encoded in the ASN1 structure. Added DER private key
4472 support to pkcs8 application.
4475 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
4476 ciphersuites has been selected (as required by the SSL 3/TLS 1
4477 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
4478 is set, we interpret this as a request to violate the specification
4479 (the worst that can happen is a handshake failure, and 'correct'
4480 behaviour would result in a handshake failure anyway).
4483 *) In SSL_CTX_add_session, take into account that there might be multiple
4484 SSL_SESSION structures with the same session ID (e.g. when two threads
4485 concurrently obtain them from an external cache).
4486 The internal cache can handle only one SSL_SESSION with a given ID,
4487 so if there's a conflict, we now throw out the old one to achieve
4491 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
4492 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
4493 some routines that use cipher OIDs: some ciphers do not have OIDs
4494 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
4498 *) Simplify the trust setting structure and code. Now we just have
4499 two sequences of OIDs for trusted and rejected settings. These will
4500 typically have values the same as the extended key usage extension
4501 and any application specific purposes.
4503 The trust checking code now has a default behaviour: it will just
4504 check for an object with the same NID as the passed id. Functions can
4505 be provided to override either the default behaviour or the behaviour
4506 for a given id. SSL client, server and email already have functions
4507 in place for compatibility: they check the NID and also return "trusted"
4508 if the certificate is self signed.
4511 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
4512 traditional format into an EVP_PKEY structure.
4515 *) Add a password callback function PEM_cb() which either prompts for
4516 a password if usr_data is NULL or otherwise assumes it is a null
4517 terminated password. Allow passwords to be passed on command line
4518 environment or config files in a few more utilities.
4521 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
4522 keys. Add some short names for PKCS#8 PBE algorithms and allow them
4523 to be specified on the command line for the pkcs8 and pkcs12 utilities.
4524 Update documentation.
4527 *) Support for ASN1 "NULL" type. This could be handled before by using
4528 ASN1_TYPE but there wasn't any function that would try to read a NULL
4529 and produce an error if it couldn't. For compatibility we also have
4530 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
4531 don't allocate anything because they don't need to.
4534 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
4536 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
4538 *) Rebuild of the memory allocation routines used by OpenSSL code and
4539 possibly others as well. The purpose is to make an interface that
4540 provide hooks so anyone can build a separate set of allocation and
4541 deallocation routines to be used by OpenSSL, for example memory
4542 pool implementations, or something else, which was previously hard
4543 since Malloc(), Realloc() and Free() were defined as macros having
4544 the values malloc, realloc and free, respectively (except for Win32
4545 compilations). The same is provided for memory debugging code.
4546 OpenSSL already comes with functionality to find memory leaks, but
4547 this gives people a chance to debug other memory problems.
4549 With these changes, a new set of functions and macros have appeared:
4551 CRYPTO_set_mem_debug_functions() [F]
4552 CRYPTO_get_mem_debug_functions() [F]
4553 CRYPTO_dbg_set_options() [F]
4554 CRYPTO_dbg_get_options() [F]
4555 CRYPTO_malloc_debug_init() [M]
4557 The memory debug functions are NULL by default, unless the library
4558 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
4559 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
4560 gives the standard debugging functions that come with OpenSSL) or
4561 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
4562 provided by the library user) must be used. When the standard
4563 debugging functions are used, CRYPTO_dbg_set_options can be used to
4564 request additional information:
4565 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
4566 the CRYPTO_MDEBUG_xxx macro when compiling the library.
4568 Also, things like CRYPTO_set_mem_functions will always give the
4569 expected result (the new set of functions is used for allocation
4570 and deallocation) at all times, regardless of platform and compiler
4573 To finish it up, some functions that were never use in any other
4574 way than through macros have a new API and new semantic:
4577 CRYPTO_dbg_realloc()
4580 All macros of value have retained their old syntax.
4581 [Richard Levitte and Bodo Moeller]
4583 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
4584 ordering of SMIMECapabilities wasn't in "strength order" and there
4585 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
4589 *) Some ASN1 types with illegal zero length encoding (INTEGER,
4590 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
4591 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
4593 *) Merge in my S/MIME library for OpenSSL. This provides a simple
4594 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
4595 functionality to handle multipart/signed properly) and a utility
4596 called 'smime' to call all this stuff. This is based on code I
4597 originally wrote for Celo who have kindly allowed it to be
4598 included in OpenSSL.
4601 *) Add variants des_set_key_checked and des_set_key_unchecked of
4602 des_set_key (aka des_key_sched). Global variable des_check_key
4603 decides which of these is called by des_set_key; this way
4604 des_check_key behaves as it always did, but applications and
4605 the library itself, which was buggy for des_check_key == 1,
4606 have a cleaner way to pick the version they need.
4609 *) New function PKCS12_newpass() which changes the password of a
4613 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
4614 dynamic mix. In both cases the ids can be used as an index into the
4615 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
4616 functions so they accept a list of the field values and the
4617 application doesn't need to directly manipulate the X509_TRUST
4621 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
4625 *) Modify the way the V3 extension code looks up extensions. This now
4626 works in a similar way to the object code: we have some "standard"
4627 extensions in a static table which is searched with OBJ_bsearch()
4628 and the application can add dynamic ones if needed. The file
4629 crypto/x509v3/ext_dat.h now has the info: this file needs to be
4630 updated whenever a new extension is added to the core code and kept
4631 in ext_nid order. There is a simple program 'tabtest.c' which checks
4632 this. New extensions are not added too often so this file can readily
4633 be maintained manually.
4635 There are two big advantages in doing things this way. The extensions
4636 can be looked up immediately and no longer need to be "added" using
4637 X509V3_add_standard_extensions(): this function now does nothing.
4638 [Side note: I get *lots* of email saying the extension code doesn't
4639 work because people forget to call this function]
4640 Also no dynamic allocation is done unless new extensions are added:
4641 so if we don't add custom extensions there is no need to call
4642 X509V3_EXT_cleanup().
4645 *) Modify enc utility's salting as follows: make salting the default. Add a
4646 magic header, so unsalted files fail gracefully instead of just decrypting
4647 to garbage. This is because not salting is a big security hole, so people
4648 should be discouraged from doing it.
4651 *) Fixes and enhancements to the 'x509' utility. It allowed a message
4652 digest to be passed on the command line but it only used this
4653 parameter when signing a certificate. Modified so all relevant
4654 operations are affected by the digest parameter including the
4655 -fingerprint and -x509toreq options. Also -x509toreq choked if a
4656 DSA key was used because it didn't fix the digest.
4659 *) Initial certificate chain verify code. Currently tests the untrusted
4660 certificates for consistency with the verify purpose (which is set
4661 when the X509_STORE_CTX structure is set up) and checks the pathlength.
4663 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
4664 this is because it will reject chains with invalid extensions whereas
4665 every previous version of OpenSSL and SSLeay made no checks at all.
4667 Trust code: checks the root CA for the relevant trust settings. Trust
4668 settings have an initial value consistent with the verify purpose: e.g.
4669 if the verify purpose is for SSL client use it expects the CA to be
4670 trusted for SSL client use. However the default value can be changed to
4671 permit custom trust settings: one example of this would be to only trust
4672 certificates from a specific "secure" set of CAs.
4674 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
4675 which should be used for version portability: especially since the
4676 verify structure is likely to change more often now.
4678 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
4679 to set them. If not set then assume SSL clients will verify SSL servers
4682 Two new options to the verify program: -untrusted allows a set of
4683 untrusted certificates to be passed in and -purpose which sets the
4684 intended purpose of the certificate. If a purpose is set then the
4685 new chain verify code is used to check extension consistency.
4688 *) Support for the authority information access extension.
4691 *) Modify RSA and DSA PEM read routines to transparently handle
4692 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
4693 public keys in a format compatible with certificate
4694 SubjectPublicKeyInfo structures. Unfortunately there were already
4695 functions called *_PublicKey_* which used various odd formats so
4696 these are retained for compatibility: however the DSA variants were
4697 never in a public release so they have been deleted. Changed dsa/rsa
4698 utilities to handle the new format: note no releases ever handled public
4699 keys so we should be OK.
4701 The primary motivation for this change is to avoid the same fiasco
4702 that dogs private keys: there are several incompatible private key
4703 formats some of which are standard and some OpenSSL specific and
4704 require various evil hacks to allow partial transparent handling and
4705 even then it doesn't work with DER formats. Given the option anything
4706 other than PKCS#8 should be dumped: but the other formats have to
4707 stay in the name of compatibility.
4709 With public keys and the benefit of hindsight one standard format
4710 is used which works with EVP_PKEY, RSA or DSA structures: though
4711 it clearly returns an error if you try to read the wrong kind of key.
4713 Added a -pubkey option to the 'x509' utility to output the public key.
4714 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
4715 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
4716 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
4717 that do the same as the EVP_PKEY_assign_*() except they up the
4718 reference count of the added key (they don't "swallow" the
4722 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
4723 CRLs would fail if the file contained no certificates or no CRLs:
4724 added a new function to read in both types and return the number
4725 read: this means that if none are read it will be an error. The
4726 DER versions of the certificate and CRL reader would always fail
4727 because it isn't possible to mix certificates and CRLs in DER format
4728 without choking one or the other routine. Changed this to just read
4729 a certificate: this is the best we can do. Also modified the code
4730 in apps/verify.c to take notice of return codes: it was previously
4731 attempting to read in certificates from NULL pointers and ignoring
4732 any errors: this is one reason why the cert and CRL reader seemed
4733 to work. It doesn't check return codes from the default certificate
4734 routines: these may well fail if the certificates aren't installed.
4737 *) Code to support otherName option in GeneralName.
4740 *) First update to verify code. Change the verify utility
4741 so it warns if it is passed a self signed certificate:
4742 for consistency with the normal behaviour. X509_verify
4743 has been modified to it will now verify a self signed
4744 certificate if *exactly* the same certificate appears
4745 in the store: it was previously impossible to trust a
4746 single self signed certificate. This means that:
4747 openssl verify ss.pem
4748 now gives a warning about a self signed certificate but
4749 openssl verify -CAfile ss.pem ss.pem
4753 *) For servers, store verify_result in SSL_SESSION data structure
4754 (and add it to external session representation).
4755 This is needed when client certificate verifications fails,
4756 but an application-provided verification callback (set by
4757 SSL_CTX_set_cert_verify_callback) allows accepting the session
4758 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
4759 but returns 1): When the session is reused, we have to set
4760 ssl->verify_result to the appropriate error code to avoid
4762 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
4764 *) Fix a bug in the new PKCS#7 code: it didn't consider the
4765 case in PKCS7_dataInit() where the signed PKCS7 structure
4766 didn't contain any existing data because it was being created.
4767 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
4769 *) Add a salt to the key derivation routines in enc.c. This
4770 forms the first 8 bytes of the encrypted file. Also add a
4771 -S option to allow a salt to be input on the command line.
4774 *) New function X509_cmp(). Oddly enough there wasn't a function
4775 to compare two certificates. We do this by working out the SHA1
4776 hash and comparing that. X509_cmp() will be needed by the trust
4780 *) SSL_get1_session() is like SSL_get_session(), but increments
4781 the reference count in the SSL_SESSION returned.
4782 [Geoff Thorpe <geoff@eu.c2.net>]
4784 *) Fix for 'req': it was adding a null to request attributes.
4785 Also change the X509_LOOKUP and X509_INFO code to handle
4786 certificate auxiliary information.
4789 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
4793 *) Add the possibility to add extra information to the memory leak
4794 detecting output, to form tracebacks, showing from where each
4795 allocation was originated: CRYPTO_push_info("constant string") adds
4796 the string plus current file name and line number to a per-thread
4797 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
4798 is like calling CYRPTO_pop_info() until the stack is empty.
4799 Also updated memory leak detection code to be multi-thread-safe.
4802 *) Add options -text and -noout to pkcs7 utility and delete the
4803 encryption options which never did anything. Update docs.
4806 *) Add options to some of the utilities to allow the pass phrase
4807 to be included on either the command line (not recommended on
4808 OSes like Unix) or read from the environment. Update the
4809 manpages and fix a few bugs.
4812 *) Add a few manpages for some of the openssl commands.
4815 *) Fix the -revoke option in ca. It was freeing up memory twice,
4816 leaking and not finding already revoked certificates.
4819 *) Extensive changes to support certificate auxiliary information.
4820 This involves the use of X509_CERT_AUX structure and X509_AUX
4821 functions. An X509_AUX function such as PEM_read_X509_AUX()
4822 can still read in a certificate file in the usual way but it
4823 will also read in any additional "auxiliary information". By
4824 doing things this way a fair degree of compatibility can be
4825 retained: existing certificates can have this information added
4826 using the new 'x509' options.
4828 Current auxiliary information includes an "alias" and some trust
4829 settings. The trust settings will ultimately be used in enhanced
4830 certificate chain verification routines: currently a certificate
4831 can only be trusted if it is self signed and then it is trusted
4835 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
4836 The problem was that one of the replacement routines had not been working
4837 since SSLeay releases. For now the offending routine has been replaced
4838 with non-optimised assembler. Even so, this now gives around 95%
4839 performance improvement for 1024 bit RSA signs.
4842 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
4843 handling. Most clients have the effective key size in bits equal to
4844 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
4845 A few however don't do this and instead use the size of the decrypted key
4846 to determine the RC2 key length and the AlgorithmIdentifier to determine
4847 the effective key length. In this case the effective key length can still
4848 be 40 bits but the key length can be 168 bits for example. This is fixed
4849 by manually forcing an RC2 key into the EVP_PKEY structure because the
4850 EVP code can't currently handle unusual RC2 key sizes: it always assumes
4851 the key length and effective key length are equal.
4854 *) Add a bunch of functions that should simplify the creation of
4855 X509_NAME structures. Now you should be able to do:
4856 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
4857 and have it automatically work out the correct field type and fill in
4858 the structures. The more adventurous can try:
4859 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
4860 and it will (hopefully) work out the correct multibyte encoding.
4863 *) Change the 'req' utility to use the new field handling and multibyte
4864 copy routines. Before the DN field creation was handled in an ad hoc
4865 way in req, ca, and x509 which was rather broken and didn't support
4866 BMPStrings or UTF8Strings. Since some software doesn't implement
4867 BMPStrings or UTF8Strings yet, they can be enabled using the config file
4868 using the dirstring_type option. See the new comment in the default
4869 openssl.cnf for more info.
4872 *) Make crypto/rand/md_rand.c more robust:
4873 - Assure unique random numbers after fork().
4874 - Make sure that concurrent threads access the global counter and
4875 md serializably so that we never lose entropy in them
4876 or use exactly the same state in multiple threads.
4877 Access to the large state is not always serializable because
4878 the additional locking could be a performance killer, and
4879 md should be large enough anyway.
4882 *) New file apps/app_rand.c with commonly needed functionality
4883 for handling the random seed file.
4885 Use the random seed file in some applications that previously did not:
4887 dsaparam -genkey (which also ignored its '-rand' option),
4890 x509 (when signing).
4891 Except on systems with /dev/urandom, it is crucial to have a random
4892 seed file at least for key creation, DSA signing, and for DH exchanges;
4893 for RSA signatures we could do without one.
4895 gendh and gendsa (unlike genrsa) used to read only the first byte
4896 of each file listed in the '-rand' option. The function as previously
4897 found in genrsa is now in app_rand.c and is used by all programs
4898 that support '-rand'.
4901 *) In RAND_write_file, use mode 0600 for creating files;
4902 don't just chmod when it may be too late.
4905 *) Report an error from X509_STORE_load_locations
4906 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
4909 *) New function ASN1_mbstring_copy() this copies a string in either
4910 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
4911 into an ASN1_STRING type. A mask of permissible types is passed
4912 and it chooses the "minimal" type to use or an error if not type
4916 *) Add function equivalents to the various macros in asn1.h. The old
4917 macros are retained with an M_ prefix. Code inside the library can
4918 use the M_ macros. External code (including the openssl utility)
4919 should *NOT* in order to be "shared library friendly".
4922 *) Add various functions that can check a certificate's extensions
4923 to see if it usable for various purposes such as SSL client,
4924 server or S/MIME and CAs of these types. This is currently
4925 VERY EXPERIMENTAL but will ultimately be used for certificate chain
4926 verification. Also added a -purpose flag to x509 utility to
4927 print out all the purposes.
4930 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
4934 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
4935 for, obtain and decode and extension and obtain its critical flag.
4936 This allows all the necessary extension code to be handled in a
4937 single function call.
4940 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
4941 platforms. See crypto/rc4/rc4_enc.c for further details.
4944 *) New -noout option to asn1parse. This causes no output to be produced
4945 its main use is when combined with -strparse and -out to extract data
4946 from a file (which may not be in ASN.1 format).
4949 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
4950 when producing the local key id.
4951 [Richard Levitte <levitte@stacken.kth.se>]
4953 *) New option -dhparam in s_server. This allows a DH parameter file to be
4954 stated explicitly. If it is not stated then it tries the first server
4955 certificate file. The previous behaviour hard coded the filename
4959 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
4960 a public key to be input or output. For example:
4961 openssl rsa -in key.pem -pubout -out pubkey.pem
4962 Also added necessary DSA public key functions to handle this.
4965 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
4966 in the message. This was handled by allowing
4967 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
4968 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
4970 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
4971 to the end of the strings whereas this didn't. This would cause problems
4972 if strings read with d2i_ASN1_bytes() were later modified.
4973 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
4975 *) Fix for base64 decode bug. When a base64 bio reads only one line of
4976 data and it contains EOF it will end up returning an error. This is
4977 caused by input 46 bytes long. The cause is due to the way base64
4978 BIOs find the start of base64 encoded data. They do this by trying a
4979 trial decode on each line until they find one that works. When they
4980 do a flag is set and it starts again knowing it can pass all the
4981 data directly through the decoder. Unfortunately it doesn't reset
4982 the context it uses. This means that if EOF is reached an attempt
4983 is made to pass two EOFs through the context and this causes the
4984 resulting error. This can also cause other problems as well. As is
4985 usual with these problems it takes *ages* to find and the fix is
4986 trivial: move one line.
4987 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
4989 *) Ugly workaround to get s_client and s_server working under Windows. The
4990 old code wouldn't work because it needed to select() on sockets and the
4991 tty (for keypresses and to see if data could be written). Win32 only
4992 supports select() on sockets so we select() with a 1s timeout on the
4993 sockets and then see if any characters are waiting to be read, if none
4994 are present then we retry, we also assume we can always write data to
4995 the tty. This isn't nice because the code then blocks until we've
4996 received a complete line of data and it is effectively polling the
4997 keyboard at 1s intervals: however it's quite a bit better than not
4998 working at all :-) A dedicated Windows application might handle this
4999 with an event loop for example.
5002 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
5003 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
5004 will be called when RSA_sign() and RSA_verify() are used. This is useful
5005 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
5006 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
5007 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
5008 This necessitated the support of an extra signature type NID_md5_sha1
5009 for SSL signatures and modifications to the SSL library to use it instead
5010 of calling RSA_public_decrypt() and RSA_private_encrypt().
5013 *) Add new -verify -CAfile and -CApath options to the crl program, these
5014 will lookup a CRL issuers certificate and verify the signature in a
5015 similar way to the verify program. Tidy up the crl program so it
5016 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
5017 less strict. It will now permit CRL extensions even if it is not
5018 a V2 CRL: this will allow it to tolerate some broken CRLs.
5021 *) Initialize all non-automatic variables each time one of the openssl
5022 sub-programs is started (this is necessary as they may be started
5023 multiple times from the "OpenSSL>" prompt).
5024 [Lennart Bang, Bodo Moeller]
5026 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
5027 removing all other RSA functionality (this is what NO_RSA does). This
5028 is so (for example) those in the US can disable those operations covered
5029 by the RSA patent while allowing storage and parsing of RSA keys and RSA
5033 *) Non-copying interface to BIO pairs.
5034 (still largely untested)
5037 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
5038 ASCII string. This was handled independently in various places before.
5041 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
5042 UTF8 strings a character at a time.
5045 *) Use client_version from client hello to select the protocol
5046 (s23_srvr.c) and for RSA client key exchange verification
5047 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
5050 *) Add various utility functions to handle SPKACs, these were previously
5051 handled by poking round in the structure internals. Added new function
5052 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
5053 print, verify and generate SPKACs. Based on an original idea from
5054 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
5057 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
5060 *) Allow the config file extension section to be overwritten on the
5061 command line. Based on an original idea from Massimiliano Pala
5062 <madwolf@comune.modena.it>. The new option is called -extensions
5063 and can be applied to ca, req and x509. Also -reqexts to override
5064 the request extensions in req and -crlexts to override the crl extensions
5068 *) Add new feature to the SPKAC handling in ca. Now you can include
5069 the same field multiple times by preceding it by "XXXX." for example:
5072 this is the same syntax as used in the req config file.
5075 *) Allow certificate extensions to be added to certificate requests. These
5076 are specified in a 'req_extensions' option of the req section of the
5077 config file. They can be printed out with the -text option to req but
5078 are otherwise ignored at present.
5081 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
5082 data read consists of only the final block it would not decrypted because
5083 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
5084 A misplaced 'break' also meant the decrypted final block might not be
5085 copied until the next read.
5088 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
5089 a few extra parameters to the DH structure: these will be useful if
5090 for example we want the value of 'q' or implement X9.42 DH.
5093 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
5094 provides hooks that allow the default DSA functions or functions on a
5095 "per key" basis to be replaced. This allows hardware acceleration and
5096 hardware key storage to be handled without major modification to the
5097 library. Also added low level modexp hooks and CRYPTO_EX structure and
5098 associated functions.
5101 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
5102 as "read only": it can't be written to and the buffer it points to will
5103 not be freed. Reading from a read only BIO is much more efficient than
5104 a normal memory BIO. This was added because there are several times when
5105 an area of memory needs to be read from a BIO. The previous method was
5106 to create a memory BIO and write the data to it, this results in two
5107 copies of the data and an O(n^2) reading algorithm. There is a new
5108 function BIO_new_mem_buf() which creates a read only memory BIO from
5109 an area of memory. Also modified the PKCS#7 routines to use read only
5113 *) Bugfix: ssl23_get_client_hello did not work properly when called in
5114 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
5115 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
5116 but a retry condition occured while trying to read the rest.
5119 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
5120 NID_pkcs7_encrypted by default: this was wrong since this should almost
5121 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
5122 the encrypted data type: this is a more sensible place to put it and it
5123 allows the PKCS#12 code to be tidied up that duplicated this
5127 *) Changed obj_dat.pl script so it takes its input and output files on
5128 the command line. This should avoid shell escape redirection problems
5132 *) Initial support for certificate extension requests, these are included
5133 in things like Xenroll certificate requests. Included functions to allow
5134 extensions to be obtained and added.
5137 *) -crlf option to s_client and s_server for sending newlines as
5138 CRLF (as required by many protocols).
5141 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
5143 *) Install libRSAglue.a when OpenSSL is built with RSAref.
5144 [Ralf S. Engelschall]
5146 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
5147 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
5149 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
5153 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
5154 DH parameters/keys (q is lost during that conversion, but the resulting
5155 DH parameters contain its length).
5157 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
5158 much faster than DH_generate_parameters (which creates parameters
5159 where p = 2*q + 1), and also the smaller q makes DH computations
5160 much more efficient (160-bit exponentiation instead of 1024-bit
5161 exponentiation); so this provides a convenient way to support DHE
5162 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
5163 utter importance to use
5164 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5166 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
5167 when such DH parameters are used, because otherwise small subgroup
5168 attacks may become possible!
5171 *) Avoid memory leak in i2d_DHparams.
5174 *) Allow the -k option to be used more than once in the enc program:
5175 this allows the same encrypted message to be read by multiple recipients.
5178 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
5179 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
5180 it will always use the numerical form of the OID, even if it has a short
5184 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
5185 method only got called if p,q,dmp1,dmq1,iqmp components were present,
5186 otherwise bn_mod_exp was called. In the case of hardware keys for example
5187 no private key components need be present and it might store extra data
5188 in the RSA structure, which cannot be accessed from bn_mod_exp.
5189 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
5190 private key operations.
5193 *) Added support for SPARC Linux.
5196 *) pem_password_cb function type incompatibly changed from
5197 typedef int pem_password_cb(char *buf, int size, int rwflag);
5199 ....(char *buf, int size, int rwflag, void *userdata);
5200 so that applications can pass data to their callbacks:
5201 The PEM[_ASN1]_{read,write}... functions and macros now take an
5202 additional void * argument, which is just handed through whenever
5203 the password callback is called.
5204 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
5206 New function SSL_CTX_set_default_passwd_cb_userdata.
5208 Compatibility note: As many C implementations push function arguments
5209 onto the stack in reverse order, the new library version is likely to
5210 interoperate with programs that have been compiled with the old
5211 pem_password_cb definition (PEM_whatever takes some data that
5212 happens to be on the stack as its last argument, and the callback
5213 just ignores this garbage); but there is no guarantee whatsoever that
5216 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
5217 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
5218 problems not only on Windows, but also on some Unix platforms.
5219 To avoid problematic command lines, these definitions are now in an
5220 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
5221 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
5224 *) MIPS III/IV assembler module is reimplemented.
5227 *) More DES library cleanups: remove references to srand/rand and
5228 delete an unused file.
5231 *) Add support for the the free Netwide assembler (NASM) under Win32,
5232 since not many people have MASM (ml) and it can be hard to obtain.
5233 This is currently experimental but it seems to work OK and pass all
5234 the tests. Check out INSTALL.W32 for info.
5237 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
5238 without temporary keys kept an extra copy of the server key,
5239 and connections with temporary keys did not free everything in case
5243 *) New function RSA_check_key and new openssl rsa option -check
5244 for verifying the consistency of RSA keys.
5245 [Ulf Moeller, Bodo Moeller]
5247 *) Various changes to make Win32 compile work:
5248 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
5249 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
5250 comparison" warnings.
5251 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
5254 *) Add a debugging option to PKCS#5 v2 key generation function: when
5255 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
5256 derived keys are printed to stderr.
5259 *) Copy the flags in ASN1_STRING_dup().
5260 [Roman E. Pavlov <pre@mo.msk.ru>]
5262 *) The x509 application mishandled signing requests containing DSA
5263 keys when the signing key was also DSA and the parameters didn't match.
5265 It was supposed to omit the parameters when they matched the signing key:
5266 the verifying software was then supposed to automatically use the CA's
5267 parameters if they were absent from the end user certificate.
5269 Omitting parameters is no longer recommended. The test was also
5270 the wrong way round! This was probably due to unusual behaviour in
5271 EVP_cmp_parameters() which returns 1 if the parameters match.
5272 This meant that parameters were omitted when they *didn't* match and
5273 the certificate was useless. Certificates signed with 'ca' didn't have
5275 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
5277 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
5278 The interface is as follows:
5279 Applications can use
5280 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
5281 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
5282 "off" is now the default.
5283 The library internally uses
5284 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
5285 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
5286 to disable memory-checking temporarily.
5288 Some inconsistent states that previously were possible (and were
5289 even the default) are now avoided.
5291 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
5292 with each memory chunk allocated; this is occasionally more helpful
5293 than just having a counter.
5295 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
5297 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
5301 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
5302 which largely parallels "options", but is for changing API behaviour,
5303 whereas "options" are about protocol behaviour.
5304 Initial "mode" flags are:
5306 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
5307 a single record has been written.
5308 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
5309 retries use the same buffer location.
5310 (But all of the contents must be
5314 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
5317 *) Fix problems with no-hmac etc.
5318 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
5320 *) New functions RSA_get_default_method(), RSA_set_method() and
5321 RSA_get_method(). These allows replacement of RSA_METHODs without having
5322 to mess around with the internals of an RSA structure.
5325 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
5326 Also really enable memory leak checks in openssl.c and in some
5328 [Chad C. Mulligan, Bodo Moeller]
5330 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
5331 up the length of negative integers. This has now been simplified to just
5332 store the length when it is first determined and use it later, rather
5333 than trying to keep track of where data is copied and updating it to
5335 [Steve Henson, reported by Brien Wheeler
5336 <bwheeler@authentica-security.com>]
5338 *) Add a new function PKCS7_signatureVerify. This allows the verification
5339 of a PKCS#7 signature but with the signing certificate passed to the
5340 function itself. This contrasts with PKCS7_dataVerify which assumes the
5341 certificate is present in the PKCS#7 structure. This isn't always the
5342 case: certificates can be omitted from a PKCS#7 structure and be
5343 distributed by "out of band" means (such as a certificate database).
5346 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
5347 function prototypes in pem.h, also change util/mkdef.pl to add the
5348 necessary function names.
5351 *) mk1mf.pl (used by Windows builds) did not properly read the
5352 options set by Configure in the top level Makefile, and Configure
5353 was not even able to write more than one option correctly.
5354 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
5357 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
5358 file to be loaded from a BIO or FILE pointer. The BIO version will
5359 for example allow memory BIOs to contain config info.
5362 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
5363 Whoever hopes to achieve shared-library compatibility across versions
5364 must use this, not the compile-time macro.
5365 (Exercise 0.9.4: Which is the minimum library version required by
5367 Note: All this applies only to multi-threaded programs, others don't
5371 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
5372 through a BIO pair triggered the default case, i.e.
5373 SSLerr(...,SSL_R_UNKNOWN_STATE).
5376 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
5377 can use the SSL library even if none of the specific BIOs is
5381 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
5382 for the encoded length.
5383 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
5385 *) Add initial documentation of the X509V3 functions.
5388 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
5389 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
5390 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
5391 secure PKCS#8 private key format with a high iteration count.
5394 *) Fix determination of Perl interpreter: A perl or perl5
5395 _directory_ in $PATH was also accepted as the interpreter.
5396 [Ralf S. Engelschall]
5398 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
5399 wrong with it but it was very old and did things like calling
5400 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
5404 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
5405 to use the new extension code.
5408 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
5409 with macros. This should make it easier to change their form, add extra
5410 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
5414 *) Add to configuration table a new entry that can specify an alternative
5415 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
5416 according to Mark Crispin <MRC@Panda.COM>.
5420 *) DES CBC did not update the IV. Weird.
5423 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
5424 Changing the behaviour of the former might break existing programs --
5425 where IV updating is needed, des_ncbc_encrypt can be used.
5428 *) When bntest is run from "make test" it drives bc to check its
5429 calculations, as well as internally checking them. If an internal check
5430 fails, it needs to cause bc to give a non-zero result or make test carries
5431 on without noticing the failure. Fixed.
5434 *) DES library cleanups.
5437 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
5438 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
5439 ciphers. NOTE: although the key derivation function has been verified
5440 against some published test vectors it has not been extensively tested
5441 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
5445 *) Instead of "mkdir -p", which is not fully portable, use new
5446 Perl script "util/mkdir-p.pl".
5449 *) Rewrite the way password based encryption (PBE) is handled. It used to
5450 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
5451 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
5452 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
5453 the 'parameter' field of the AlgorithmIdentifier is passed to the
5454 underlying key generation function so it must do its own ASN1 parsing.
5455 This has also changed the EVP_PBE_CipherInit() function which now has a
5456 'parameter' argument instead of literal salt and iteration count values
5457 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
5460 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
5461 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
5462 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
5463 KEY" because this clashed with PKCS#8 unencrypted string. Since this
5464 value was just used as a "magic string" and not used directly its
5465 value doesn't matter.
5468 *) Introduce some semblance of const correctness to BN. Shame C doesn't
5472 *) "linux-sparc64" configuration (ultrapenguin).
5473 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
5474 "linux-sparc" configuration.
5475 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
5477 *) config now generates no-xxx options for missing ciphers.
5480 *) Support the EBCDIC character set (work in progress).
5481 File ebcdic.c not yet included because it has a different license.
5482 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5484 *) Support BS2000/OSD-POSIX.
5485 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5487 *) Make callbacks for key generation use void * instead of char *.
5490 *) Make S/MIME samples compile (not yet tested).
5493 *) Additional typesafe stacks.
5496 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
5500 Changes between 0.9.3 and 0.9.3a [29 May 1999]
5502 *) New configuration variant "sco5-gcc".
5504 *) Updated some demos.
5505 [Sean O Riordain, Wade Scholine]
5507 *) Add missing BIO_free at exit of pkcs12 application.
5510 *) Fix memory leak in conf.c.
5513 *) Updates for Win32 to assembler version of MD5.
5516 *) Set #! path to perl in apps/der_chop to where we found it
5517 instead of using a fixed path.
5520 *) SHA library changes for irix64-mips4-cc.
5523 *) Improvements for VMS support.
5527 Changes between 0.9.2b and 0.9.3 [24 May 1999]
5529 *) Bignum library bug fix. IRIX 6 passes "make test" now!
5530 This also avoids the problems with SC4.2 and unpatched SC5.
5531 [Andy Polyakov <appro@fy.chalmers.se>]
5533 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
5534 These are required because of the typesafe stack would otherwise break
5535 existing code. If old code used a structure member which used to be STACK
5536 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
5537 sk_num or sk_value it would produce an error because the num, data members
5538 are not present in STACK_OF. Now it just produces a warning. sk_set
5539 replaces the old method of assigning a value to sk_value
5540 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
5541 that does this will no longer work (and should use sk_set instead) but
5542 this could be regarded as a "questionable" behaviour anyway.
5545 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
5546 correctly handle encrypted S/MIME data.
5549 *) Change type of various DES function arguments from des_cblock
5550 (which means, in function argument declarations, pointer to char)
5551 to des_cblock * (meaning pointer to array with 8 char elements),
5552 which allows the compiler to do more typechecking; it was like
5553 that back in SSLeay, but with lots of ugly casts.
5555 Introduce new type const_des_cblock.
5558 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
5559 problems: find RecipientInfo structure that matches recipient certificate
5560 and initialise the ASN1 structures properly based on passed cipher.
5563 *) Belatedly make the BN tests actually check the results.
5566 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
5567 to and from BNs: it was completely broken. New compilation option
5568 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
5569 key elements as negative integers.
5572 *) Reorganize and speed up MD5.
5573 [Andy Polyakov <appro@fy.chalmers.se>]
5576 [Richard Levitte <richard@levitte.org>]
5578 *) New option -out to asn1parse to allow the parsed structure to be
5579 output to a file. This is most useful when combined with the -strparse
5580 option to examine the output of things like OCTET STRINGS.
5583 *) Make SSL library a little more fool-proof by not requiring any longer
5584 that SSL_set_{accept,connect}_state be called before
5585 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
5586 in many applications because usually everything *appeared* to work as
5587 intended anyway -- now it really works as intended).
5590 *) Move openssl.cnf out of lib/.
5593 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
5594 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
5595 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
5596 [Ralf S. Engelschall]
5598 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
5599 handle PKCS#7 enveloped data properly.
5600 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
5602 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
5603 copying pointers. The cert_st handling is changed by this in
5604 various ways (and thus what used to be known as ctx->default_cert
5605 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
5606 any longer when s->cert does not give us what we need).
5607 ssl_cert_instantiate becomes obsolete by this change.
5608 As soon as we've got the new code right (possibly it already is?),
5609 we have solved a couple of bugs of the earlier code where s->cert
5610 was used as if it could not have been shared with other SSL structures.
5612 Note that using the SSL API in certain dirty ways now will result
5613 in different behaviour than observed with earlier library versions:
5614 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
5615 does not influence s as it used to.
5617 In order to clean up things more thoroughly, inside SSL_SESSION
5618 we don't use CERT any longer, but a new structure SESS_CERT
5619 that holds per-session data (if available); currently, this is
5620 the peer's certificate chain and, for clients, the server's certificate
5621 and temporary key. CERT holds only those values that can have
5622 meaningful defaults in an SSL_CTX.
5625 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
5626 from the internal representation. Various PKCS#7 fixes: remove some
5627 evil casts and set the enc_dig_alg field properly based on the signing
5631 *) Allow PKCS#12 password to be set from the command line or the
5632 environment. Let 'ca' get its config file name from the environment
5633 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
5637 *) Allow certificate policies extension to use an IA5STRING for the
5638 organization field. This is contrary to the PKIX definition but
5639 VeriSign uses it and IE5 only recognises this form. Document 'x509'
5643 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
5644 without disallowing inline assembler and the like for non-pedantic builds.
5647 *) Support Borland C++ builder.
5648 [Janez Jere <jj@void.si>, modified by Ulf Möller]
5653 *) SHA-1 cleanups and performance enhancements.
5654 [Andy Polyakov <appro@fy.chalmers.se>]
5656 *) Sparc v8plus assembler for the bignum library.
5657 [Andy Polyakov <appro@fy.chalmers.se>]
5659 *) Accept any -xxx and +xxx compiler options in Configure.
5662 *) Update HPUX configuration.
5665 *) Add missing sk_<type>_unshift() function to safestack.h
5666 [Ralf S. Engelschall]
5668 *) New function SSL_CTX_use_certificate_chain_file that sets the
5669 "extra_cert"s in addition to the certificate. (This makes sense
5670 only for "PEM" format files, as chains as a whole are not
5674 *) Support verify_depth from the SSL API.
5675 x509_vfy.c had what can be considered an off-by-one-error:
5676 Its depth (which was not part of the external interface)
5677 was actually counting the number of certificates in a chain;
5678 now it really counts the depth.
5681 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
5682 instead of X509err, which often resulted in confusing error
5683 messages since the error codes are not globally unique
5684 (e.g. an alleged error in ssl3_accept when a certificate
5685 didn't match the private key).
5687 *) New function SSL_CTX_set_session_id_context that allows to set a default
5688 value (so that you don't need SSL_set_session_id_context for each
5689 connection using the SSL_CTX).
5692 *) OAEP decoding bug fix.
5695 *) Support INSTALL_PREFIX for package builders, as proposed by
5699 *) New Configure options "threads" and "no-threads". For systems
5700 where the proper compiler options are known (currently Solaris
5701 and Linux), "threads" is the default.
5704 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
5707 *) Install various scripts to $(OPENSSLDIR)/misc, not to
5708 $(INSTALLTOP)/bin -- they shouldn't clutter directories
5709 such as /usr/local/bin.
5712 *) "make linux-shared" to build shared libraries.
5713 [Niels Poppe <niels@netbox.org>]
5715 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
5718 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
5719 extension adding in x509 utility.
5722 *) Remove NOPROTO sections and error code comments.
5725 *) Partial rewrite of the DEF file generator to now parse the ANSI
5729 *) New Configure options --prefix=DIR and --openssldir=DIR.
5732 *) Complete rewrite of the error code script(s). It is all now handled
5733 by one script at the top level which handles error code gathering,
5734 header rewriting and C source file generation. It should be much better
5735 than the old method: it now uses a modified version of Ulf's parser to
5736 read the ANSI prototypes in all header files (thus the old K&R definitions
5737 aren't needed for error creation any more) and do a better job of
5738 translating function codes into names. The old 'ASN1 error code imbedded
5739 in a comment' is no longer necessary and it doesn't use .err files which
5740 have now been deleted. Also the error code call doesn't have to appear all
5741 on one line (which resulted in some large lines...).
5744 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
5747 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
5748 0 (which usually indicates a closed connection), but continue reading.
5751 *) Fix some race conditions.
5754 *) Add support for CRL distribution points extension. Add Certificate
5755 Policies and CRL distribution points documentation.
5758 *) Move the autogenerated header file parts to crypto/opensslconf.h.
5761 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
5762 8 of keying material. Merlin has also confirmed interop with this fix
5763 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
5764 [Merlin Hughes <merlin@baltimore.ie>]
5766 *) Fix lots of warnings.
5767 [Richard Levitte <levitte@stacken.kth.se>]
5769 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
5770 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
5771 [Richard Levitte <levitte@stacken.kth.se>]
5773 *) Fix problems with sizeof(long) == 8.
5774 [Andy Polyakov <appro@fy.chalmers.se>]
5776 *) Change functions to ANSI C.
5779 *) Fix typos in error codes.
5780 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
5782 *) Remove defunct assembler files from Configure.
5785 *) SPARC v8 assembler BIGNUM implementation.
5786 [Andy Polyakov <appro@fy.chalmers.se>]
5788 *) Support for Certificate Policies extension: both print and set.
5789 Various additions to support the r2i method this uses.
5792 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
5793 return a const string when you are expecting an allocated buffer.
5796 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
5797 types DirectoryString and DisplayText.
5800 *) Add code to allow r2i extensions to access the configuration database,
5801 add an LHASH database driver and add several ctx helper functions.
5804 *) Fix an evil bug in bn_expand2() which caused various BN functions to
5805 fail when they extended the size of a BIGNUM.
5808 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
5809 support typesafe stack.
5812 *) Fix typo in SSL_[gs]et_options().
5813 [Nils Frostberg <nils@medcom.se>]
5815 *) Delete various functions and files that belonged to the (now obsolete)
5816 old X509V3 handling code.
5819 *) New Configure option "rsaref".
5822 *) Don't auto-generate pem.h.
5825 *) Introduce type-safe ASN.1 SETs.
5828 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
5829 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
5831 *) Introduce type-safe STACKs. This will almost certainly break lots of code
5832 that links with OpenSSL (well at least cause lots of warnings), but fear
5833 not: the conversion is trivial, and it eliminates loads of evil casts. A
5834 few STACKed things have been converted already. Feel free to convert more.
5835 In the fullness of time, I'll do away with the STACK type altogether.
5838 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
5839 specified in <certfile> by updating the entry in the index.txt file.
5840 This way one no longer has to edit the index.txt file manually for
5841 revoking a certificate. The -revoke option does the gory details now.
5842 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
5844 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
5845 `-text' option at all and this way the `-noout -text' combination was
5846 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
5847 [Ralf S. Engelschall]
5849 *) Make sure a corresponding plain text error message exists for the
5850 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
5851 verify callback function determined that a certificate was revoked.
5852 [Ralf S. Engelschall]
5854 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
5855 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
5856 all available cipers including rc5, which was forgotten until now.
5857 In order to let the testing shell script know which algorithms
5858 are available, a new (up to now undocumented) command
5859 "openssl list-cipher-commands" is used.
5862 *) Bugfix: s_client occasionally would sleep in select() when
5863 it should have checked SSL_pending() first.
5866 *) New functions DSA_do_sign and DSA_do_verify to provide access to
5867 the raw DSA values prior to ASN.1 encoding.
5870 *) Tweaks to Configure
5871 [Niels Poppe <niels@netbox.org>]
5873 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
5877 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
5880 *) New config option to avoid instructions that are illegal on the 80386.
5881 The default code is faster, but requires at least a 486.
5884 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
5885 SSL2_SERVER_VERSION (not used at all) macros, which are now the
5886 same as SSL2_VERSION anyway.
5889 *) New "-showcerts" option for s_client.
5892 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
5893 application. Various cleanups and fixes.
5896 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
5897 modify error routines to work internally. Add error codes and PBE init
5898 to library startup routines.
5901 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
5902 packing functions to asn1 and evp. Changed function names and error
5903 codes along the way.
5906 *) PKCS12 integration: and so it begins... First of several patches to
5907 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
5908 objects to objects.h
5911 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
5912 and display support for Thawte strong extranet extension.
5915 *) Add LinuxPPC support.
5916 [Jeff Dubrule <igor@pobox.org>]
5918 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
5919 bn_div_words in alpha.s.
5920 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
5922 *) Make sure the RSA OAEP test is skipped under -DRSAref because
5923 OAEP isn't supported when OpenSSL is built with RSAref.
5924 [Ulf Moeller <ulf@fitug.de>]
5926 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
5927 so they no longer are missing under -DNOPROTO.
5928 [Soren S. Jorvang <soren@t.dk>]
5931 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
5933 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
5934 doesn't work when the session is reused. Coming soon!
5937 *) Fix a security hole, that allows sessions to be reused in the wrong
5938 context thus bypassing client cert protection! All software that uses
5939 client certs and session caches in multiple contexts NEEDS PATCHING to
5940 allow session reuse! A fuller solution is in the works.
5941 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
5943 *) Some more source tree cleanups (removed obsolete files
5944 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
5945 permission on "config" script to be executable) and a fix for the INSTALL
5947 [Ulf Moeller <ulf@fitug.de>]
5949 *) Remove some legacy and erroneous uses of malloc, free instead of
5951 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
5953 *) Make rsa_oaep_test return non-zero on error.
5954 [Ulf Moeller <ulf@fitug.de>]
5956 *) Add support for native Solaris shared libraries. Configure
5957 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
5958 if someone would make that last step automatic.
5959 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
5961 *) ctx_size was not built with the right compiler during "make links". Fixed.
5964 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
5965 except NULL ciphers". This means the default cipher list will no longer
5966 enable NULL ciphers. They need to be specifically enabled e.g. with
5967 the string "DEFAULT:eNULL".
5970 *) Fix to RSA private encryption routines: if p < q then it would
5971 occasionally produce an invalid result. This will only happen with
5972 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
5975 *) Be less restrictive and allow also `perl util/perlpath.pl
5976 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
5977 because this way one can also use an interpreter named `perl5' (which is
5978 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
5979 installed as `perl').
5980 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5982 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
5983 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
5985 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
5986 advapi32.lib to Win32 build and change the pem test comparision
5987 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
5988 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
5989 and crypto/des/ede_cbcm_enc.c.
5992 *) DES quad checksum was broken on big-endian architectures. Fixed.
5995 *) Comment out two functions in bio.h that aren't implemented. Fix up the
5996 Win32 test batch file so it (might) work again. The Win32 test batch file
5997 is horrible: I feel ill....
6000 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
6001 in e_os.h. Audit of header files to check ANSI and non ANSI
6002 sections: 10 functions were absent from non ANSI section and not exported
6003 from Windows DLLs. Fixed up libeay.num for new functions.
6006 *) Make `openssl version' output lines consistent.
6007 [Ralf S. Engelschall]
6009 *) Fix Win32 symbol export lists for BIO functions: Added
6010 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
6011 to ms/libeay{16,32}.def.
6012 [Ralf S. Engelschall]
6014 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
6015 fine under Unix and passes some trivial tests I've now added. But the
6016 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
6017 added to make sure no one expects that this stuff really works in the
6018 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
6019 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
6021 [Ralf S. Engelschall]
6023 *) Fix the generation of two part addresses in perl.
6024 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
6026 *) Add config entry for Linux on MIPS.
6027 [John Tobey <jtobey@channel1.com>]
6029 *) Make links whenever Configure is run, unless we are on Windoze.
6032 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
6033 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
6037 *) Add a useful kludge to allow package maintainers to specify compiler and
6038 other platforms details on the command line without having to patch the
6039 Configure script everytime: One now can use ``perl Configure
6040 <id>:<details>'', i.e. platform ids are allowed to have details appended
6041 to them (seperated by colons). This is treated as there would be a static
6042 pre-configured entry in Configure's %table under key <id> with value
6043 <details> and ``perl Configure <id>'' is called. So, when you want to
6044 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
6045 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
6046 now, which overrides the FreeBSD-elf entry on-the-fly.
6047 [Ralf S. Engelschall]
6049 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
6052 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
6053 on the `perl Configure ...' command line. This way one can compile
6054 OpenSSL libraries with Position Independent Code (PIC) which is needed
6055 for linking it into DSOs.
6056 [Ralf S. Engelschall]
6058 *) Remarkably, export ciphers were totally broken and no-one had noticed!
6062 *) Cleaned up the LICENSE document: The official contact for any license
6063 questions now is the OpenSSL core team under openssl-core@openssl.org.
6064 And add a paragraph about the dual-license situation to make sure people
6065 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
6066 to the OpenSSL toolkit.
6067 [Ralf S. Engelschall]
6069 *) General source tree makefile cleanups: Made `making xxx in yyy...'
6070 display consistent in the source tree and replaced `/bin/rm' by `rm'.
6071 Additonally cleaned up the `make links' target: Remove unnecessary
6072 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
6073 to speed processing and no longer clutter the display with confusing
6074 stuff. Instead only the actually done links are displayed.
6075 [Ralf S. Engelschall]
6077 *) Permit null encryption ciphersuites, used for authentication only. It used
6078 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
6079 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
6083 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
6084 signed attributes when verifying signatures (this would break them),
6085 the detached data encoding was wrong and public keys obtained using
6086 X509_get_pubkey() weren't freed.
6089 *) Add text documentation for the BUFFER functions. Also added a work around
6090 to a Win95 console bug. This was triggered by the password read stuff: the
6091 last character typed gets carried over to the next fread(). If you were
6092 generating a new cert request using 'req' for example then the last
6093 character of the passphrase would be CR which would then enter the first
6097 *) Added the new `Includes OpenSSL Cryptography Software' button as
6098 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
6099 button and can be used by applications based on OpenSSL to show the
6100 relationship to the OpenSSL project.
6101 [Ralf S. Engelschall]
6103 *) Remove confusing variables in function signatures in files
6104 ssl/ssl_lib.c and ssl/ssl.h.
6105 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6107 *) Don't install bss_file.c under PREFIX/include/
6108 [Lennart Bong <lob@kulthea.stacken.kth.se>]
6110 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
6111 functions that return function pointers and has support for NT specific
6112 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
6113 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
6114 unsigned to signed types: this was killing the Win32 compile.
6117 *) Add new certificate file to stack functions,
6118 SSL_add_dir_cert_subjects_to_stack() and
6119 SSL_add_file_cert_subjects_to_stack(). These largely supplant
6120 SSL_load_client_CA_file(), and can be used to add multiple certs easily
6121 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
6122 This means that Apache-SSL and similar packages don't have to mess around
6123 to add as many CAs as they want to the preferred list.
6126 *) Experiment with doxygen documentation. Currently only partially applied to
6128 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
6129 openssl.doxy as the configuration file.
6132 *) Get rid of remaining C++-style comments which strict C compilers hate.
6133 [Ralf S. Engelschall, pointed out by Carlos Amengual]
6135 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
6136 compiled in by default: it has problems with large keys.
6139 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
6140 DH private keys and/or callback functions which directly correspond to
6141 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
6142 is needed for applications which have to configure certificates on a
6143 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
6145 For the RSA certificate situation is makes no difference, but
6146 for the DSA certificate situation this fixes the "no shared cipher"
6147 problem where the OpenSSL cipher selection procedure failed because the
6148 temporary keys were not overtaken from the context and the API provided
6149 no way to reconfigure them.
6150 The new functions now let applications reconfigure the stuff and they
6151 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
6152 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
6153 non-public-API function ssl_cert_instantiate() is used as a helper
6154 function and also to reduce code redundancy inside ssl_rsa.c.
6155 [Ralf S. Engelschall]
6157 *) Move s_server -dcert and -dkey options out of the undocumented feature
6158 area because they are useful for the DSA situation and should be
6159 recognized by the users.
6160 [Ralf S. Engelschall]
6162 *) Fix the cipher decision scheme for export ciphers: the export bits are
6163 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
6164 SSL_EXP_MASK. So, the original variable has to be used instead of the
6165 already masked variable.
6166 [Richard Levitte <levitte@stacken.kth.se>]
6168 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
6169 [Richard Levitte <levitte@stacken.kth.se>]
6171 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
6172 from `int' to `unsigned int' because it's a length and initialized by
6173 EVP_DigestFinal() which expects an `unsigned int *'.
6174 [Richard Levitte <levitte@stacken.kth.se>]
6176 *) Don't hard-code path to Perl interpreter on shebang line of Configure
6177 script. Instead use the usual Shell->Perl transition trick.
6178 [Ralf S. Engelschall]
6180 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
6181 (in addition to RSA certificates) to match the behaviour of `openssl dsa
6182 -noout -modulus' as it's already the case for `openssl rsa -noout
6183 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
6184 currently the public key is printed (a decision which was already done by
6185 `openssl dsa -modulus' in the past) which serves a similar purpose.
6186 Additionally the NO_RSA no longer completely removes the whole -modulus
6187 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
6189 [Ralf S. Engelschall]
6191 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
6192 BIO. See the source (crypto/evp/bio_ok.c) for more info.
6193 [Arne Ansper <arne@ats.cyber.ee>]
6195 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
6196 to be added. Now both 'req' and 'ca' can use new objects defined in the
6200 *) Add cool BIO that does syslog (or event log on NT).
6201 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
6203 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
6204 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
6205 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
6206 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
6209 *) Add preliminary config info for new extension code.
6212 *) Make RSA_NO_PADDING really use no padding.
6213 [Ulf Moeller <ulf@fitug.de>]
6215 *) Generate errors when private/public key check is done.
6218 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
6219 for some CRL extensions and new objects added.
6222 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
6223 key usage extension and fuller support for authority key id.
6226 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
6227 padding method for RSA, which is recommended for new applications in PKCS
6228 #1 v2.0 (RFC 2437, October 1998).
6229 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
6230 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
6231 against Bleichbacher's attack on RSA.
6232 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
6235 *) Updates to the new SSL compression code
6236 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6238 *) Fix so that the version number in the master secret, when passed
6239 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
6240 (because the server will not accept higher), that the version number
6241 is 0x03,0x01, not 0x03,0x00
6242 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6244 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
6245 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
6246 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
6249 *) Support for RAW extensions where an arbitrary extension can be
6250 created by including its DER encoding. See apps/openssl.cnf for
6254 *) Make sure latest Perl versions don't interpret some generated C array
6255 code as Perl array code in the crypto/err/err_genc.pl script.
6256 [Lars Weber <3weber@informatik.uni-hamburg.de>]
6258 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
6259 not many people have the assembler. Various Win32 compilation fixes and
6260 update to the INSTALL.W32 file with (hopefully) more accurate Win32
6264 *) Modify configure script 'Configure' to automatically create crypto/date.h
6265 file under Win32 and also build pem.h from pem.org. New script
6266 util/mkfiles.pl to create the MINFO file on environments that can't do a
6267 'make files': perl util/mkfiles.pl >MINFO should work.
6270 *) Major rework of DES function declarations, in the pursuit of correctness
6271 and purity. As a result, many evil casts evaporated, and some weirdness,
6272 too. You may find this causes warnings in your code. Zapping your evil
6273 casts will probably fix them. Mostly.
6276 *) Fix for a typo in asn1.h. Bug fix to object creation script
6277 obj_dat.pl. It considered a zero in an object definition to mean
6278 "end of object": none of the objects in objects.h have any zeros
6279 so it wasn't spotted.
6280 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
6282 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
6283 Masking (CBCM). In the absence of test vectors, the best I have been able
6284 to do is check that the decrypt undoes the encrypt, so far. Send me test
6285 vectors if you have them.
6288 *) Correct calculation of key length for export ciphers (too much space was
6289 allocated for null ciphers). This has not been tested!
6292 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
6293 message is now correct (it understands "crypto" and "ssl" on its
6294 command line). There is also now an "update" option. This will update
6295 the util/ssleay.num and util/libeay.num files with any new functions.
6297 perl util/mkdef.pl crypto ssl update
6298 it will update them.
6301 *) Overhauled the Perl interface (perl/*):
6302 - ported BN stuff to OpenSSL's different BN library
6303 - made the perl/ source tree CVS-aware
6304 - renamed the package from SSLeay to OpenSSL (the files still contain
6305 their history because I've copied them in the repository)
6306 - removed obsolete files (the test scripts will be replaced
6307 by better Test::Harness variants in the future)
6308 [Ralf S. Engelschall]
6310 *) First cut for a very conservative source tree cleanup:
6311 1. merge various obsolete readme texts into doc/ssleay.txt
6312 where we collect the old documents and readme texts.
6313 2. remove the first part of files where I'm already sure that we no
6314 longer need them because of three reasons: either they are just temporary
6315 files which were left by Eric or they are preserved original files where
6316 I've verified that the diff is also available in the CVS via "cvs diff
6317 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
6318 the crypto/md/ stuff).
6319 [Ralf S. Engelschall]
6321 *) More extension code. Incomplete support for subject and issuer alt
6322 name, issuer and authority key id. Change the i2v function parameters
6323 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
6324 what that's for :-) Fix to ASN1 macro which messed up
6325 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
6328 *) Preliminary support for ENUMERATED type. This is largely copied from the
6332 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
6333 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6335 *) Make sure `make rehash' target really finds the `openssl' program.
6336 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
6338 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
6339 like to hear about it if this slows down other processors.
6342 *) Add CygWin32 platform information to Configure script.
6343 [Alan Batie <batie@aahz.jf.intel.com>]
6345 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
6346 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
6348 *) New program nseq to manipulate netscape certificate sequences
6351 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
6355 *) Fixes to BN code. Previously the default was to define BN_RECURSION
6356 but the BN code had some problems that would cause failures when
6357 doing certificate verification and some other functions.
6358 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
6360 *) Add ASN1 and PEM code to support netscape certificate sequences.
6363 *) Add ASN1 and PEM code to support netscape certificate sequences.
6366 *) Add several PKIX and private extended key usage OIDs.
6369 *) Modify the 'ca' program to handle the new extension code. Modify
6370 openssl.cnf for new extension format, add comments.
6373 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
6374 and add a sample to openssl.cnf so req -x509 now adds appropriate
6378 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
6379 error code, add initial support to X509_print() and x509 application.
6382 *) Takes a deep breath and start addding X509 V3 extension support code. Add
6383 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
6384 stuff is currently isolated and isn't even compiled yet.
6387 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
6388 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
6389 Removed the versions check from X509 routines when loading extensions:
6390 this allows certain broken certificates that don't set the version
6391 properly to be processed.
6394 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
6395 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
6396 can still be regenerated with "make depend".
6399 *) Spelling mistake in C version of CAST-128.
6400 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
6402 *) Changes to the error generation code. The perl script err-code.pl
6403 now reads in the old error codes and retains the old numbers, only
6404 adding new ones if necessary. It also only changes the .err files if new
6405 codes are added. The makefiles have been modified to only insert errors
6406 when needed (to avoid needlessly modifying header files). This is done
6407 by only inserting errors if the .err file is newer than the auto generated
6408 C file. To rebuild all the error codes from scratch (the old behaviour)
6409 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
6410 or delete all the .err files.
6413 *) CAST-128 was incorrectly implemented for short keys. The C version has
6414 been fixed, but is untested. The assembler versions are also fixed, but
6415 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
6416 to regenerate it if needed.
6417 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
6418 Hagino <itojun@kame.net>]
6420 *) File was opened incorrectly in randfile.c.
6421 [Ulf Möller <ulf@fitug.de>]
6423 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
6424 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
6425 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
6426 al: it's just almost always a UTCTime. Note this patch adds new error
6427 codes so do a "make errors" if there are problems.
6430 *) Correct Linux 1 recognition in config.
6431 [Ulf Möller <ulf@fitug.de>]
6433 *) Remove pointless MD5 hash when using DSA keys in ca.
6434 [Anonymous <nobody@replay.com>]
6436 *) Generate an error if given an empty string as a cert directory. Also
6437 generate an error if handed NULL (previously returned 0 to indicate an
6438 error, but didn't set one).
6439 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
6441 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
6444 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
6445 parameters. This was causing a warning which killed off the Win32 compile.
6448 *) Remove C++ style comments from crypto/bn/bn_local.h.
6449 [Neil Costigan <neil.costigan@celocom.com>]
6451 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
6452 based on a text string, looking up short and long names and finally
6453 "dot" format. The "dot" format stuff didn't work. Added new function
6454 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
6455 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
6456 OID is not part of the table.
6459 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
6460 X509_LOOKUP_by_alias().
6463 *) Sort openssl functions by name.
6466 *) Get the gendsa program working (hopefully) and add it to app list. Remove
6467 encryption from sample DSA keys (in case anyone is interested the password
6471 *) Make _all_ *_free functions accept a NULL pointer.
6472 [Frans Heymans <fheymans@isaserver.be>]
6474 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
6476 [Anonymous <nobody@replay.com>]
6478 *) s_server should send the CAfile as acceptable CAs, not its own cert.
6479 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6481 *) Don't blow it for numeric -newkey arguments to apps/req.
6482 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
6484 *) Temp key "for export" tests were wrong in s3_srvr.c.
6485 [Anonymous <nobody@replay.com>]
6487 *) Add prototype for temp key callback functions
6488 SSL_CTX_set_tmp_{rsa,dh}_callback().
6491 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
6492 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
6495 *) X509_name_add_entry() freed the wrong thing after an error.
6496 [Arne Ansper <arne@ats.cyber.ee>]
6498 *) rsa_eay.c would attempt to free a NULL context.
6499 [Arne Ansper <arne@ats.cyber.ee>]
6501 *) BIO_s_socket() had a broken should_retry() on Windoze.
6502 [Arne Ansper <arne@ats.cyber.ee>]
6504 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
6505 [Arne Ansper <arne@ats.cyber.ee>]
6507 *) Make sure the already existing X509_STORE->depth variable is initialized
6508 in X509_STORE_new(), but document the fact that this variable is still
6509 unused in the certificate verification process.
6510 [Ralf S. Engelschall]
6512 *) Fix the various library and apps files to free up pkeys obtained from
6513 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
6516 *) Fix reference counting in X509_PUBKEY_get(). This makes
6517 demos/maurice/example2.c work, amongst others, probably.
6518 [Steve Henson and Ben Laurie]
6520 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
6521 `openssl' and second, the shortcut symlinks for the `openssl <command>'
6522 are no longer created. This way we have a single and consistent command
6523 line interface `openssl <command>', similar to `cvs <command>'.
6524 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
6526 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
6527 BIT STRING wrapper always have zero unused bits.
6530 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
6533 *) Make the top-level INSTALL documentation easier to understand.
6536 *) Makefiles updated to exit if an error occurs in a sub-directory
6537 make (including if user presses ^C) [Paul Sutton]
6539 *) Make Montgomery context stuff explicit in RSA data structure.
6542 *) Fix build order of pem and err to allow for generated pem.h.
6545 *) Fix renumbering bug in X509_NAME_delete_entry().
6548 *) Enhanced the err-ins.pl script so it makes the error library number
6549 global and can add a library name. This is needed for external ASN1 and
6550 other error libraries.
6553 *) Fixed sk_insert which never worked properly.
6556 *) Fix ASN1 macros so they can handle indefinite length construted
6557 EXPLICIT tags. Some non standard certificates use these: they can now
6561 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
6562 into a single doc/ssleay.txt bundle. This way the information is still
6563 preserved but no longer messes up this directory. Now it's new room for
6564 the new set of documenation files.
6565 [Ralf S. Engelschall]
6567 *) SETs were incorrectly DER encoded. This was a major pain, because they
6568 shared code with SEQUENCEs, which aren't coded the same. This means that
6569 almost everything to do with SETs or SEQUENCEs has either changed name or
6570 number of arguments.
6571 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
6573 *) Fix test data to work with the above.
6576 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
6577 was already fixed by Eric for 0.9.1 it seems.
6578 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
6580 *) Autodetect FreeBSD3.
6583 *) Fix various bugs in Configure. This affects the following platforms:
6587 unixware-2.0-pentium
6591 *) Eliminate generated files from CVS. Reorder tests to regenerate files
6592 before they are needed.
6595 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
6599 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
6601 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
6602 changed SSLeay to OpenSSL in version strings.
6603 [Ralf S. Engelschall]
6605 *) Some fixups to the top-level documents.
6608 *) Fixed the nasty bug where rsaref.h was not found under compile-time
6609 because the symlink to include/ was missing.
6610 [Ralf S. Engelschall]
6612 *) Incorporated the popular no-RSA/DSA-only patches
6613 which allow to compile a RSA-free SSLeay.
6614 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
6616 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
6617 when "ssleay" is still not found.
6618 [Ralf S. Engelschall]
6620 *) Added more platforms to Configure: Cray T3E, HPUX 11,
6621 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
6623 *) Updated the README file.
6624 [Ralf S. Engelschall]
6626 *) Added various .cvsignore files in the CVS repository subdirs
6627 to make a "cvs update" really silent.
6628 [Ralf S. Engelschall]
6630 *) Recompiled the error-definition header files and added
6631 missing symbols to the Win32 linker tables.
6632 [Ralf S. Engelschall]
6634 *) Cleaned up the top-level documents;
6635 o new files: CHANGES and LICENSE
6636 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
6637 o merged COPYRIGHT into LICENSE
6638 o removed obsolete TODO file
6639 o renamed MICROSOFT to INSTALL.W32
6640 [Ralf S. Engelschall]
6642 *) Removed dummy files from the 0.9.1b source tree:
6643 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
6644 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
6645 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
6646 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
6647 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
6648 [Ralf S. Engelschall]
6650 *) Added various platform portability fixes.
6653 *) The Genesis of the OpenSSL rpject:
6654 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
6655 Young and Tim J. Hudson created while they were working for C2Net until
6657 [The OpenSSL Project]
6660 Changes between 0.9.0b and 0.9.1b [not released]
6662 *) Updated a few CA certificates under certs/
6665 *) Changed some BIGNUM api stuff.
6668 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
6669 DGUX x86, Linux Alpha, etc.
6672 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
6673 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
6677 *) Add -strparse option to asn1pars program which parses nested
6679 [Dr Stephen Henson <shenson@bigfoot.com>]
6681 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
6684 *) DSA fix for "ca" program.
6687 *) Added "-genkey" option to "dsaparam" program.
6690 *) Added RIPE MD160 (rmd160) message digest.
6693 *) Added -a (all) option to "ssleay version" command.
6696 *) Added PLATFORM define which is the id given to Configure.
6699 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
6702 *) Extended the ASN.1 parser routines.
6705 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
6708 *) Added a BN_CTX to the BN library.
6711 *) Fixed the weak key values in DES library
6714 *) Changed API in EVP library for cipher aliases.
6717 *) Added support for RC2/64bit cipher.
6720 *) Converted the lhash library to the crypto/mem.c functions.
6723 *) Added more recognized ASN.1 object ids.
6726 *) Added more RSA padding checks for SSL/TLS.
6729 *) Added BIO proxy/filter functionality.
6732 *) Added extra_certs to SSL_CTX which can be used
6733 send extra CA certificates to the client in the CA cert chain sending
6734 process. It can be configured with SSL_CTX_add_extra_chain_cert().
6737 *) Now Fortezza is denied in the authentication phase because
6738 this is key exchange mechanism is not supported by SSLeay at all.
6741 *) Additional PKCS1 checks.
6744 *) Support the string "TLSv1" for all TLS v1 ciphers.
6747 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
6748 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
6751 *) Fixed a few memory leaks.
6754 *) Fixed various code and comment typos.
6757 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
6758 bytes sent in the client random.
6759 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob