5 Changes between 0.9.8d and 0.9.9 [xx XXX xxxx]
7 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
8 Modify get_crl() to find a valid (unexpired) CRL if possible.
11 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
12 this would be called X509_CRL_cmp() but that name is already used by
13 a function that just compares CRL issuer names. Cache several CRL
14 extensions in X509_CRL structure and cache CRLDP in X509.
17 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
18 this maps equivalent X509_NAME structures into a consistent structure.
19 Name comparison can then be performed rapidly using memcmp().
22 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
26 *) Allow digests to supply their own micalg string for S/MIME type using
27 the ctrl EVP_MD_CTRL_MICALG.
30 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
31 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
32 ctrl. It can then customise the structure before and/or after signing
36 *) New function OBJ_add_sigid() to allow application defined signature OIDs
37 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
38 to free up any added signature OIDs.
41 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
42 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
43 digest and cipher tables. New options added to openssl utility:
44 list-message-digest-algorithms and list-cipher-algorithms.
47 *) In addition to the numerical (unsigned long) thread ID, provide
48 for a pointer (void *) thread ID. This helps accomodate systems
49 that do not provide an unsigned long thread ID. OpenSSL assumes
50 it is in the same thread iff both the numerical and the pointer
51 thread ID agree; so applications are just required to define one
52 of them appropriately (e.g., by using a pointer to a per-thread
53 memory object malloc()ed by the application for the pointer-type
54 thread ID). Exactly analoguous to the existing functions
56 void CRYPTO_set_id_callback(unsigned long (*func)(void));
57 unsigned long (*CRYPTO_get_id_callback(void))(void);
58 unsigned long CRYPTO_thread_id(void);
60 we now have additional functions
62 void CRYPTO_set_idptr_callback(void *(*func)(void));
63 void *(*CRYPTO_get_idptr_callback(void))(void);
64 void *CRYPTO_thread_idptr(void);
66 also in <openssl/crypto.h>. The default value for
67 CRYPTO_thread_idptr() if the application has not provided its own
71 *) Change the array representation of binary polynomials: the list
72 of degrees of non-zero coefficients is now terminated with -1.
73 Previously it was terminated with 0, which was also part of the
74 value; thus, the array representation was not applicable to
75 polynomials where t^0 has coefficient zero. This change makes
76 the array representation useful in a more general context.
79 *) Various modifications and fixes to SSL/TLS cipher string
80 handling. For ECC, the code now distinguishes between fixed ECDH
81 with RSA certificates on the one hand and with ECDSA certificates
82 on the other hand, since these are separate ciphersuites. The
83 unused code for Fortezza ciphersuites has been removed.
85 For consistency with EDH, ephemeral ECDH is now called "EECDH"
86 (not "ECDHE"). For consistency with the code for DH
87 certificates, use of ECDH certificates is now considered ECDH
88 authentication, not RSA or ECDSA authentication (the latter is
89 merely the CA's signing algorithm and not actively used in the
92 The temporary ciphersuite alias "ECCdraft" is no longer
93 available, and ECC ciphersuites are no longer excluded from "ALL"
94 and "DEFAULT". The following aliases now exist for RFC 4492
95 ciphersuites, most of these by analogy with the DH case:
97 kECDHr - ECDH cert, signed with RSA
98 kECDHe - ECDH cert, signed with ECDSA
99 kECDH - ECDH cert (signed with either RSA or ECDSA)
100 kEECDH - ephemeral ECDH
101 ECDH - ECDH cert or ephemeral ECDH
107 AECDH - anonymous ECDH
108 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
112 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
113 Use correct micalg parameters depending on digest(s) in signed message.
116 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
117 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
120 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
121 an engine to register a method. Add ENGINE lookups for methods and
122 functional reference processing.
125 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
126 EVP_{Sign,Verify}* which allow an application to customise the signature
130 *) New -resign option to smime utility. This adds one or more signers
131 to an existing PKCS#7 signedData structure. Also -md option to use an
132 alternative message digest algorithm for signing.
135 *) Tidy up PKCS#7 routines and add new functions to make it easier to
136 create PKCS7 structures containing multiple signers. Update smime
137 application to support multiple signers.
140 *) New -macalg option to pkcs12 utility to allow setting of an alternative
144 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
145 Reorganize PBE internals to lookup from a static table using NIDs,
146 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
147 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
148 PRF which will be automatically used with PBES2.
151 *) Replace the algorithm specific calls to generate keys in "req" with the
155 *) Update PKCS#7 enveloped data routines to use new API. This is now
156 supported by any public key method supporting the encrypt operation. A
157 ctrl is added to allow the public key algorithm to examine or modify
158 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
162 *) Add a ctrl to asn1 method to allow a public key algorithm to express
163 a default digest type to use. In most cases this will be SHA1 but some
164 algorithms (such as GOST) need to specify an alternative digest. The
165 return value indicates how strong the prefernce is 1 means optional and
166 2 is mandatory (that is it is the only supported type). Modify
167 ASN1_item_sign() to accept a NULL digest argument to indicate it should
168 use the default md. Update openssl utilities to use the default digest
169 type for signing if it is not explicitly indicated.
172 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
173 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
174 signing method from the key type. This effectively removes the link
175 between digests and public key types.
178 *) Add an OID cross reference table and utility functions. Its purpose is to
179 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
180 rsaEncryption. This will allow some of the algorithm specific hackery
181 needed to use the correct OID to be removed.
184 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
185 structures for PKCS7_sign(). They are now set up by the relevant public
189 *) Add provisional EC pkey method with support for ECDSA and ECDH.
192 *) Add support for key derivation (agreement) in the API, DH method and
196 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
197 public and private key formats. As a side effect these add additional
198 command line functionality not previously available: DSA signatures can be
199 generated and verified using pkeyutl and DH key support and generation in
204 [Oliver Tappe <zooey@hirschkaefer.de>]
206 *) New make target "install_html_docs" installs HTML renditions of the
208 [Oliver Tappe <zooey@hirschkaefer.de>]
210 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
211 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
212 support key and parameter generation and add initial key generation
213 functionality for RSA.
216 *) Add functions for main EVP_PKEY_method operations. The undocumented
217 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
218 EVP_PKEY_{encrypt,decrypt}_old.
221 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
222 key API, doesn't do much yet.
225 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
226 public key algorithms. New option to openssl utility:
227 "list-public-key-algorithms" to print out info.
230 *) Implement the Supported Elliptic Curves Extension for
231 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
234 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
235 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
238 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
239 utilities such as rsa, dsa, dsaparam etc except they process any key
243 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
244 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
245 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
249 *) Initial support for pluggable public key ASN1.
250 De-spaghettify the public key ASN1 handling. Move public and private
251 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
252 algorithm specific handling to a single module within the relevant
253 algorithm directory. Add functions to allow (near) opaque processing
254 of public and private key structures.
257 *) Implement the Supported Point Formats Extension for
258 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
261 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
262 for the psk identity [hint] and the psk callback functions to the
263 SSL_SESSION, SSL and SSL_CTX structure.
266 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
270 SSL_CTX_use_psk_identity_hint
271 SSL_get_psk_identity_hint
273 SSL_use_psk_identity_hint
275 [Mika Kousa and Pasi Eronen of Nokia Corporation]
277 *) Add RFC 3161 compliant time stamp request creation, response generation
278 and response verification functionality.
279 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
281 *) Add initial support for TLS extensions, specifically for the server_name
282 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
283 have new members for a host name. The SSL data structure has an
284 additional member SSL_CTX *initial_ctx so that new sessions can be
285 stored in that context to allow for session resumption, even after the
286 SSL has been switched to a new SSL_CTX in reaction to a client's
287 server_name extension.
289 New functions (subject to change):
292 SSL_get_servername_type()
295 New CTRL codes and macros (subject to change):
297 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
298 - SSL_CTX_set_tlsext_servername_callback()
299 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
300 - SSL_CTX_set_tlsext_servername_arg()
301 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
303 openssl s_client has a new '-servername ...' option.
305 openssl s_server has new options '-servername_host ...', '-cert2 ...',
306 '-key2 ...', '-servername_fatal' (subject to change). This allows
307 testing the HostName extension for a specific single host name ('-cert'
308 and '-key' remain fallbacks for handshakes without HostName
309 negotiation). If the unrecogninzed_name alert has to be sent, this by
310 default is a warning; it becomes fatal with the '-servername_fatal'
313 [Peter Sylvester, Remy Allais, Christophe Renou]
315 *) Whirlpool hash implementation is added.
318 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
319 bn(64,32). Because of instruction set limitations it doesn't have
320 any negative impact on performance. This was done mostly in order
321 to make it possible to share assembler modules, such as bn_mul_mont
322 implementations, between 32- and 64-bit builds without hassle.
325 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
326 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
330 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
331 dedicated Montgomery multiplication procedure, is introduced.
332 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
333 "64-bit" performance on certain 32-bit targets.
336 *) New option SSL_OP_NO_COMP to disable use of compression selectively
337 in SSL structures. New SSL ctrl to set maximum send fragment size.
338 Save memory by seeting the I/O buffer sizes dynamically instead of
339 using the maximum available value.
342 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
343 in addition to the text details.
346 *) Very, very preliminary EXPERIMENTAL support for printing of general
347 ASN1 structures. This currently produces rather ugly output and doesn't
348 handle several customised structures at all.
351 *) Integrated support for PVK file format and some related formats such
352 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
353 these in the 'rsa' and 'dsa' utilities.
356 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
359 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
360 place for the (very old) "NETSCAPE" format certificates which are now
361 handled using new ASN1 code equivalents.
364 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
365 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
366 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
369 *) Modify CRL distribution points extension code to print out previously
370 unsupported fields. Enhance extension setting code to allow setting of
374 *) Add print and set support for Issuing Distribution Point CRL extension.
377 *) Change 'Configure' script to enable Camellia by default.
380 Changes between 0.9.8c and 0.9.8d [xx XXX xxxx]
382 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
383 match only those. Before that, "AES256-SHA" would be interpreted
384 as a pattern and match "AES128-SHA" too since we currently only
385 have a single AES bit in the ciphersuite description bitmap.
386 That change, however, also applied to ciphersuite strings such as
387 "RC4-MD5" that intentionally matched multiple ciphersuites --
388 namely, SSL 2.0 ciphersuites in addition to the more common ones
389 from SSL 3.0/TLS 1.0.
391 So we change the selection algorithm again: Naming an explicit
392 ciphersuite selects this one ciphersuite, and any other similar
393 ciphersuite (same bitmap) from *other* protocol versions.
394 Thus, "RC4-MD5" again will properly select both the SSL 2.0
395 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
397 Since SSL 2.0 does not have any ciphersuites for which the
398 128/256 bit distinction would be relevant, this works for now.
399 The proper fix will be to use different bits for AES128 and
400 AES256, which would have avoided the problems from the beginning;
401 however, bits are scarce, so we can only do this in a new release
402 (not just a patchlevel) when we can change the SSL_CIPHER
403 definition to split the single 'unsigned long mask' bitmap into
404 multiple values to extend the available space.
408 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
410 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
411 (CVE-2006-4339) [Ben Laurie and Google Security Team]
413 *) Add AES IGE and biIGE modes.
416 *) Change the Unix randomness entropy gathering to use poll() when
417 possible instead of select(), since the latter has some
418 undesirable limitations.
419 [Darryl Miles via Richard Levitte and Bodo Moeller]
421 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
422 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
423 cannot be implicitly activated as part of, e.g., the "AES" alias.
424 However, please upgrade to OpenSSL 0.9.9[-dev] for
425 non-experimental use of the ECC ciphersuites to get TLS extension
426 support, which is required for curve and point format negotiation
427 to avoid potential handshake problems.
430 *) Disable rogue ciphersuites:
432 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
433 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
434 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
436 The latter two were purportedly from
437 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
440 Also deactive the remaining ciphersuites from
441 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
442 unofficial, and the ID has long expired.
445 *) Fix RSA blinding Heisenbug (problems sometimes occured on
446 dual-core machines) and other potential thread-safety issues.
449 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
450 versions), which is now available for royalty-free use
451 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
452 Also, add Camellia TLS ciphersuites from RFC 4132.
454 To minimize changes between patchlevels in the OpenSSL 0.9.8
455 series, Camellia remains excluded from compilation unless OpenSSL
456 is configured with 'enable-camellia'.
459 *) Disable the padding bug check when compression is in use. The padding
460 bug check assumes the first packet is of even length, this is not
461 necessarily true if compresssion is enabled and can result in false
462 positives causing handshake failure. The actual bug test is ancient
463 code so it is hoped that implementations will either have fixed it by
464 now or any which still have the bug do not support compression.
467 Changes between 0.9.8a and 0.9.8b [04 May 2006]
469 *) When applying a cipher rule check to see if string match is an explicit
470 cipher suite and only match that one cipher suite if it is.
473 *) Link in manifests for VC++ if needed.
474 [Austin Ziegler <halostatue@gmail.com>]
476 *) Update support for ECC-based TLS ciphersuites according to
477 draft-ietf-tls-ecc-12.txt with proposed changes (but without
478 TLS extensions, which are supported starting with the 0.9.9
479 branch, not in the OpenSSL 0.9.8 branch).
482 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
483 opaque EVP_CIPHER_CTX handling.
486 *) Fixes and enhancements to zlib compression code. We now only use
487 "zlib1.dll" and use the default __cdecl calling convention on Win32
488 to conform with the standards mentioned here:
489 http://www.zlib.net/DLL_FAQ.txt
490 Static zlib linking now works on Windows and the new --with-zlib-include
491 --with-zlib-lib options to Configure can be used to supply the location
492 of the headers and library. Gracefully handle case where zlib library
496 *) Several fixes and enhancements to the OID generation code. The old code
497 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
498 handle numbers larger than ULONG_MAX, truncated printing and had a
499 non standard OBJ_obj2txt() behaviour.
502 *) Add support for building of engines under engine/ as shared libraries
503 under VC++ build system.
506 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
507 Hopefully, we will not see any false combination of paths any more.
510 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
512 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
513 (part of SSL_OP_ALL). This option used to disable the
514 countermeasure against man-in-the-middle protocol-version
515 rollback in the SSL 2.0 server implementation, which is a bad
516 idea. (CVE-2005-2969)
518 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
519 for Information Security, National Institute of Advanced Industrial
520 Science and Technology [AIST], Japan)]
522 *) Add two function to clear and return the verify parameter flags.
525 *) Keep cipherlists sorted in the source instead of sorting them at
526 runtime, thus removing the need for a lock.
529 *) Avoid some small subgroup attacks in Diffie-Hellman.
530 [Nick Mathewson and Ben Laurie]
532 *) Add functions for well-known primes.
535 *) Extended Windows CE support.
536 [Satoshi Nakamura and Andy Polyakov]
538 *) Initialize SSL_METHOD structures at compile time instead of during
539 runtime, thus removing the need for a lock.
542 *) Make PKCS7_decrypt() work even if no certificate is supplied by
543 attempting to decrypt each encrypted key in turn. Add support to
547 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
549 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
552 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
555 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
556 key into the same file any more.
559 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
562 *) Add -utf8 command line and config file option to 'ca'.
563 [Stefan <stf@udoma.org]
565 *) Removed the macro des_crypt(), as it seems to conflict with some
566 libraries. Use DES_crypt().
569 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
570 involves renaming the source and generated shared-libs for
571 both. The engines will accept the corrected or legacy ids
572 ('ncipher' and '4758_cca' respectively) when binding. NB,
573 this only applies when building 'shared'.
574 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
576 *) Add attribute functions to EVP_PKEY structure. Modify
577 PKCS12_create() to recognize a CSP name attribute and
578 use it. Make -CSP option work again in pkcs12 utility.
581 *) Add new functionality to the bn blinding code:
582 - automatic re-creation of the BN_BLINDING parameters after
583 a fixed number of uses (currently 32)
584 - add new function for parameter creation
585 - introduce flags to control the update behaviour of the
586 BN_BLINDING parameters
587 - hide BN_BLINDING structure
588 Add a second BN_BLINDING slot to the RSA structure to improve
589 performance when a single RSA object is shared among several
593 *) Add support for DTLS.
594 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
596 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
597 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
600 *) Remove buggy and incompletet DH cert support from
601 ssl/ssl_rsa.c and ssl/s3_both.c
604 *) Use SHA-1 instead of MD5 as the default digest algorithm for
605 the apps/openssl applications.
608 *) Compile clean with "-Wall -Wmissing-prototypes
609 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
610 DEBUG_SAFESTACK must also be set.
613 *) Change ./Configure so that certain algorithms can be disabled by default.
614 The new counterpiece to "no-xxx" is "enable-xxx".
616 The patented RC5 and MDC2 algorithms will now be disabled unless
617 "enable-rc5" and "enable-mdc2", respectively, are specified.
619 (IDEA remains enabled despite being patented. This is because IDEA
620 is frequently required for interoperability, and there is no license
621 fee for non-commercial use. As before, "no-idea" can be used to
622 avoid this algorithm.)
626 *) Add processing of proxy certificates (see RFC 3820). This work was
627 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
628 EGEE (Enabling Grids for E-science in Europe).
631 *) RC4 performance overhaul on modern architectures/implementations, such
632 as Intel P4, IA-64 and AMD64.
635 *) New utility extract-section.pl. This can be used specify an alternative
636 section number in a pod file instead of having to treat each file as
637 a separate case in Makefile. This can be done by adding two lines to the
640 =for comment openssl_section:XXX
642 The blank line is mandatory.
646 *) New arguments -certform, -keyform and -pass for s_client and s_server
647 to allow alternative format key and certificate files and passphrase
651 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
652 update associated structures and add various utility functions.
654 Add new policy related verify parameters, include policy checking in
655 standard verify code. Enhance 'smime' application with extra parameters
656 to support policy checking and print out.
659 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
660 Nehemiah processors. These extensions support AES encryption in hardware
661 as well as RNG (though RNG support is currently disabled).
662 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
664 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
667 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
668 [Andy Polyakov and a number of other people]
670 *) Improved PowerPC platform support. Most notably BIGNUM assembler
671 implementation contributed by IBM.
672 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
674 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
675 exponent rather than 'unsigned long'. There is a corresponding change to
676 the new 'rsa_keygen' element of the RSA_METHOD structure.
677 [Jelte Jansen, Geoff Thorpe]
679 *) Functionality for creating the initial serial number file is now
680 moved from CA.pl to the 'ca' utility with a new option -create_serial.
682 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
683 number file to 1, which is bound to cause problems. To avoid
684 the problems while respecting compatibility between different 0.9.7
685 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
686 CA.pl for serial number initialization. With the new release 0.9.8,
687 we can fix the problem directly in the 'ca' utility.)
690 *) Reduced header interdepencies by declaring more opaque objects in
691 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
692 give fewer recursive includes, which could break lazy source code - so
693 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
694 developers should define this symbol when building and using openssl to
695 ensure they track the recommended behaviour, interfaces, [etc], but
696 backwards-compatible behaviour prevails when this isn't defined.
699 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
702 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
703 This will generate a random key of the appropriate length based on the
704 cipher context. The EVP_CIPHER can provide its own random key generation
705 routine to support keys of a specific form. This is used in the des and
706 3des routines to generate a key of the correct parity. Update S/MIME
707 code to use new functions and hence generate correct parity DES keys.
708 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
709 valid (weak or incorrect parity).
712 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
713 as looking them up. This is useful when the verified structure may contain
714 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
715 present unless the new PKCS7_NO_CRL flag is asserted.
718 *) Extend ASN1 oid configuration module. It now additionally accepts the
721 shortName = some long name, 1.2.3.4
724 *) Reimplemented the BN_CTX implementation. There is now no more static
725 limitation on the number of variables it can handle nor the depth of the
726 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
727 information can now expand as required, and rather than having a single
728 static array of bignums, BN_CTX now uses a linked-list of such arrays
729 allowing it to expand on demand whilst maintaining the usefulness of
733 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
734 to allow all RSA operations to function using a single BN_CTX.
737 *) Preliminary support for certificate policy evaluation and checking. This
738 is initially intended to pass the tests outlined in "Conformance Testing
739 of Relying Party Client Certificate Path Processing Logic" v1.07.
742 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
743 remained unused and not that useful. A variety of other little bignum
744 tweaks and fixes have also been made continuing on from the audit (see
748 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
749 associated ASN1, EVP and SSL functions and old ASN1 macros.
752 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
753 and this should never fail. So the return value from the use of
754 BN_set_word() (which can fail due to needless expansion) is now deprecated;
755 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
758 *) BN_CTX_get() should return zero-valued bignums, providing the same
759 initialised value as BN_new().
760 [Geoff Thorpe, suggested by Ulf Möller]
762 *) Support for inhibitAnyPolicy certificate extension.
765 *) An audit of the BIGNUM code is underway, for which debugging code is
766 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
767 is considered valid when processing BIGNUMs, and causes execution to
768 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
769 further steps are taken to deliberately pollute unused data in BIGNUM
770 structures to try and expose faulty code further on. For now, openssl will
771 (in its default mode of operation) continue to tolerate the inconsistent
772 forms that it has tolerated in the past, but authors and packagers should
773 consider trying openssl and their own applications when compiled with
774 these debugging symbols defined. It will help highlight potential bugs in
775 their own code, and will improve the test coverage for OpenSSL itself. At
776 some point, these tighter rules will become openssl's default to improve
777 maintainability, though the assert()s and other overheads will remain only
778 in debugging configurations. See bn.h for more details.
779 [Geoff Thorpe, Nils Larsch, Ulf Möller]
781 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
782 that can only be obtained through BN_CTX_new() (which implicitly
783 initialises it). The presence of this function only made it possible
784 to overwrite an existing structure (and cause memory leaks).
787 *) Because of the callback-based approach for implementing LHASH as a
788 template type, lh_insert() adds opaque objects to hash-tables and
789 lh_doall() or lh_doall_arg() are typically used with a destructor callback
790 to clean up those corresponding objects before destroying the hash table
791 (and losing the object pointers). So some over-zealous constifications in
792 LHASH have been relaxed so that lh_insert() does not take (nor store) the
793 objects as "const" and the lh_doall[_arg] callback wrappers are not
794 prototyped to have "const" restrictions on the object pointers they are
795 given (and so aren't required to cast them away any more).
798 *) The tmdiff.h API was so ugly and minimal that our own timing utility
799 (speed) prefers to use its own implementation. The two implementations
800 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
801 its object type properly exposed (MS_TM) instead of casting to/from "char
802 *". This may still change yet if someone realises MS_TM and "ms_time_***"
803 aren't necessarily the greatest nomenclatures - but this is what was used
804 internally to the implementation so I've used that for now.
807 *) Ensure that deprecated functions do not get compiled when
808 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
809 the self-tests were still using deprecated key-generation functions so
810 these have been updated also.
813 *) Reorganise PKCS#7 code to separate the digest location functionality
814 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
815 New function PKCS7_set_digest() to set the digest type for PKCS#7
816 digestedData type. Add additional code to correctly generate the
817 digestedData type and add support for this type in PKCS7 initialization
821 *) New function PKCS7_set0_type_other() this initializes a PKCS7
822 structure of type "other".
825 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
826 sure the loop does correctly stop and breaking ("division by zero")
827 modulus operations are not performed. The (pre-generated) prime
828 table crypto/bn/bn_prime.h was already correct, but it could not be
829 re-generated on some platforms because of the "division by zero"
830 situation in the script.
831 [Ralf S. Engelschall]
833 *) Update support for ECC-based TLS ciphersuites according to
834 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
835 SHA-1 now is only used for "small" curves (where the
836 representation of a field element takes up to 24 bytes); for
837 larger curves, the field element resulting from ECDH is directly
838 used as premaster secret.
839 [Douglas Stebila (Sun Microsystems Laboratories)]
841 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
842 curve secp160r1 to the tests.
843 [Douglas Stebila (Sun Microsystems Laboratories)]
845 *) Add the possibility to load symbols globally with DSO.
846 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
848 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
849 control of the error stack.
852 *) Add support for STORE in ENGINE.
855 *) Add the STORE type. The intention is to provide a common interface
856 to certificate and key stores, be they simple file-based stores, or
857 HSM-type store, or LDAP stores, or...
858 NOTE: The code is currently UNTESTED and isn't really used anywhere.
861 *) Add a generic structure called OPENSSL_ITEM. This can be used to
862 pass a list of arguments to any function as well as provide a way
863 for a function to pass data back to the caller.
866 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
867 works like BUF_strdup() but can be used to duplicate a portion of
868 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
872 *) Add the function sk_find_ex() which works like sk_find(), but will
873 return an index to an element even if an exact match couldn't be
874 found. The index is guaranteed to point at the element where the
875 searched-for key would be inserted to preserve sorting order.
878 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
879 takes an extra flags argument for optional functionality. Currently,
880 the following flags are defined:
882 OBJ_BSEARCH_VALUE_ON_NOMATCH
883 This one gets OBJ_bsearch_ex() to return a pointer to the first
884 element where the comparing function returns a negative or zero
887 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
888 This one gets OBJ_bsearch_ex() to return a pointer to the first
889 element where the comparing function returns zero. This is useful
890 if there are more than one element where the comparing function
894 *) Make it possible to create self-signed certificates with 'openssl ca'
895 in such a way that the self-signed certificate becomes part of the
896 CA database and uses the same mechanisms for serial number generation
897 as all other certificate signing. The new flag '-selfsign' enables
898 this functionality. Adapt CA.sh and CA.pl.in.
901 *) Add functionality to check the public key of a certificate request
902 against a given private. This is useful to check that a certificate
903 request can be signed by that key (self-signing).
906 *) Make it possible to have multiple active certificates with the same
907 subject in the CA index file. This is done only if the keyword
908 'unique_subject' is set to 'no' in the main CA section (default
909 if 'CA_default') of the configuration file. The value is saved
910 with the database itself in a separate index attribute file,
911 named like the index file with '.attr' appended to the name.
914 *) Generate muti valued AVAs using '+' notation in config files for
918 *) Support for nameConstraints certificate extension.
921 *) Support for policyConstraints certificate extension.
924 *) Support for policyMappings certificate extension.
927 *) Make sure the default DSA_METHOD implementation only uses its
928 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
929 and change its own handlers to be NULL so as to remove unnecessary
930 indirection. This lets alternative implementations fallback to the
931 default implementation more easily.
934 *) Support for directoryName in GeneralName related extensions
938 *) Make it possible to link applications using Makefile.shared.
939 Make that possible even when linking against static libraries!
942 *) Support for single pass processing for S/MIME signing. This now
943 means that S/MIME signing can be done from a pipe, in addition
944 cleartext signing (multipart/signed type) is effectively streaming
945 and the signed data does not need to be all held in memory.
947 This is done with a new flag PKCS7_STREAM. When this flag is set
948 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
949 is done after the data is output (and digests calculated) in
953 *) Add full support for -rpath/-R, both in shared libraries and
954 applications, at least on the platforms where it's known how
958 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
959 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
960 will now compute a table of multiples of the generator that
961 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
962 faster (notably in the case of a single point multiplication,
964 [Nils Larsch, Bodo Moeller]
966 *) IPv6 support for certificate extensions. The various extensions
967 which use the IP:a.b.c.d can now take IPv6 addresses using the
968 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
972 *) Added an ENGINE that implements RSA by performing private key
973 exponentiations with the GMP library. The conversions to and from
974 GMP's mpz_t format aren't optimised nor are any montgomery forms
975 cached, and on x86 it appears OpenSSL's own performance has caught up.
976 However there are likely to be other architectures where GMP could
977 provide a boost. This ENGINE is not built in by default, but it can be
978 specified at Configure time and should be accompanied by the necessary
979 linker additions, eg;
980 ./config -DOPENSSL_USE_GMP -lgmp
983 *) "openssl engine" will not display ENGINE/DSO load failure errors when
984 testing availability of engines with "-t" - the old behaviour is
985 produced by increasing the feature's verbosity with "-tt".
988 *) ECDSA routines: under certain error conditions uninitialized BN objects
989 could be freed. Solution: make sure initialization is performed early
990 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
994 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
995 and DH_METHOD (eg. by ENGINE implementations) to override the normal
996 software implementations. For DSA and DH, parameter generation can
997 also be overriden by providing the appropriate method callbacks.
1000 *) Change the "progress" mechanism used in key-generation and
1001 primality testing to functions that take a new BN_GENCB pointer in
1002 place of callback/argument pairs. The new API functions have "_ex"
1003 postfixes and the older functions are reimplemented as wrappers for
1004 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1005 declarations of the old functions to help (graceful) attempts to
1006 migrate to the new functions. Also, the new key-generation API
1007 functions operate on a caller-supplied key-structure and return
1008 success/failure rather than returning a key or NULL - this is to
1009 help make "keygen" another member function of RSA_METHOD etc.
1011 Example for using the new callback interface:
1013 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1017 BN_GENCB_set(&my_cb, my_callback, my_arg);
1019 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1020 /* For the meaning of a, b in calls to my_callback(), see the
1021 * documentation of the function that calls the callback.
1022 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1023 * my_callback should return 1 if it wants BN_is_prime_ex()
1024 * to continue, or 0 to stop.
1029 *) Change the ZLIB compression method to be stateful, and make it
1030 available to TLS with the number defined in
1031 draft-ietf-tls-compression-04.txt.
1034 *) Add the ASN.1 structures and functions for CertificatePair, which
1035 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1037 CertificatePair ::= SEQUENCE {
1038 forward [0] Certificate OPTIONAL,
1039 reverse [1] Certificate OPTIONAL,
1040 -- at least one of the pair shall be present -- }
1042 Also implement the PEM functions to read and write certificate
1043 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1045 This needed to be defined, mostly for the sake of the LDAP
1046 attribute crossCertificatePair, but may prove useful elsewhere as
1050 *) Make it possible to inhibit symlinking of shared libraries in
1051 Makefile.shared, for Cygwin's sake.
1054 *) Extend the BIGNUM API by creating a function
1055 void BN_set_negative(BIGNUM *a, int neg);
1056 and a macro that behave like
1057 int BN_is_negative(const BIGNUM *a);
1059 to avoid the need to access 'a->neg' directly in applications.
1062 *) Implement fast modular reduction for pseudo-Mersenne primes
1063 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1064 EC_GROUP_new_curve_GFp() will now automatically use this
1066 [Nils Larsch <nla@trustcenter.de>]
1068 *) Add new lock type (CRYPTO_LOCK_BN).
1071 *) Change the ENGINE framework to automatically load engines
1072 dynamically from specific directories unless they could be
1073 found to already be built in or loaded. Move all the
1074 current engines except for the cryptodev one to a new
1076 The engines in engines/ are built as shared libraries if
1077 the "shared" options was given to ./Configure or ./config.
1078 Otherwise, they are inserted in libcrypto.a.
1079 /usr/local/ssl/engines is the default directory for dynamic
1080 engines, but that can be overriden at configure time through
1081 the usual use of --prefix and/or --openssldir, and at run
1082 time with the environment variable OPENSSL_ENGINES.
1083 [Geoff Thorpe and Richard Levitte]
1085 *) Add Makefile.shared, a helper makefile to build shared
1086 libraries. Addapt Makefile.org.
1089 *) Add version info to Win32 DLLs.
1090 [Peter 'Luna' Runestig" <peter@runestig.com>]
1092 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1093 can be added using this API to created arbitrary PKCS#12
1094 files while avoiding the low level API.
1096 New options to PKCS12_create(), key or cert can be NULL and
1097 will then be omitted from the output file. The encryption
1098 algorithm NIDs can be set to -1 for no encryption, the mac
1099 iteration count can be set to 0 to omit the mac.
1101 Enhance pkcs12 utility by making the -nokeys and -nocerts
1102 options work when creating a PKCS#12 file. New option -nomac
1103 to omit the mac, NONE can be set for an encryption algorithm.
1104 New code is modified to use the enhanced PKCS12_create()
1105 instead of the low level API.
1108 *) Extend ASN1 encoder to support indefinite length constructed
1109 encoding. This can output sequences tags and octet strings in
1110 this form. Modify pk7_asn1.c to support indefinite length
1111 encoding. This is experimental and needs additional code to
1112 be useful, such as an ASN1 bio and some enhanced streaming
1115 Extend template encode functionality so that tagging is passed
1116 down to the template encoder.
1119 *) Let 'openssl req' fail if an argument to '-newkey' is not
1120 recognized instead of using RSA as a default.
1123 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1124 As these are not official, they are not included in "ALL";
1125 the "ECCdraft" ciphersuite group alias can be used to select them.
1126 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1128 *) Add ECDH engine support.
1129 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1131 *) Add ECDH in new directory crypto/ecdh/.
1132 [Douglas Stebila (Sun Microsystems Laboratories)]
1134 *) Let BN_rand_range() abort with an error after 100 iterations
1135 without success (which indicates a broken PRNG).
1138 *) Change BN_mod_sqrt() so that it verifies that the input value
1139 is really the square of the return value. (Previously,
1140 BN_mod_sqrt would show GIGO behaviour.)
1143 *) Add named elliptic curves over binary fields from X9.62, SECG,
1144 and WAP/WTLS; add OIDs that were still missing.
1146 [Sheueling Chang Shantz and Douglas Stebila
1147 (Sun Microsystems Laboratories)]
1149 *) Extend the EC library for elliptic curves over binary fields
1150 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1153 EC_GF2m_simple_method
1157 EC_GROUP_new_curve_GF2m
1158 EC_GROUP_set_curve_GF2m
1159 EC_GROUP_get_curve_GF2m
1160 EC_POINT_set_affine_coordinates_GF2m
1161 EC_POINT_get_affine_coordinates_GF2m
1162 EC_POINT_set_compressed_coordinates_GF2m
1164 Point compression for binary fields is disabled by default for
1165 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1168 As binary polynomials are represented as BIGNUMs, various members
1169 of the EC_GROUP and EC_POINT data structures can be shared
1170 between the implementations for prime fields and binary fields;
1171 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1172 are essentially identical to their ..._GFp counterparts.
1173 (For simplicity, the '..._GFp' prefix has been dropped from
1174 various internal method names.)
1176 An internal 'field_div' method (similar to 'field_mul' and
1177 'field_sqr') has been added; this is used only for binary fields.
1179 [Sheueling Chang Shantz and Douglas Stebila
1180 (Sun Microsystems Laboratories)]
1182 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1183 through methods ('mul', 'precompute_mult').
1185 The generic implementations (now internally called 'ec_wNAF_mul'
1186 and 'ec_wNAF_precomputed_mult') remain the default if these
1187 methods are undefined.
1189 [Sheueling Chang Shantz and Douglas Stebila
1190 (Sun Microsystems Laboratories)]
1192 *) New function EC_GROUP_get_degree, which is defined through
1193 EC_METHOD. For curves over prime fields, this returns the bit
1194 length of the modulus.
1196 [Sheueling Chang Shantz and Douglas Stebila
1197 (Sun Microsystems Laboratories)]
1199 *) New functions EC_GROUP_dup, EC_POINT_dup.
1200 (These simply call ..._new and ..._copy).
1202 [Sheueling Chang Shantz and Douglas Stebila
1203 (Sun Microsystems Laboratories)]
1205 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1206 Polynomials are represented as BIGNUMs (where the sign bit is not
1207 used) in the following functions [macros]:
1210 BN_GF2m_sub [= BN_GF2m_add]
1211 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1212 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1213 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1215 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1216 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1217 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1218 BN_GF2m_cmp [= BN_ucmp]
1220 (Note that only the 'mod' functions are actually for fields GF(2^m).
1221 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1223 For some functions, an the irreducible polynomial defining a
1224 field can be given as an 'unsigned int[]' with strictly
1225 decreasing elements giving the indices of those bits that are set;
1226 i.e., p[] represents the polynomial
1227 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1229 p[0] > p[1] > ... > p[k] = 0.
1230 This applies to the following functions:
1235 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1236 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1238 BN_GF2m_mod_sqrt_arr
1239 BN_GF2m_mod_solve_quad_arr
1243 Conversion can be performed by the following functions:
1248 bntest.c has additional tests for binary polynomial arithmetic.
1250 Two implementations for BN_GF2m_mod_div() are available.
1251 The default algorithm simply uses BN_GF2m_mod_inv() and
1252 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1253 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1254 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1256 [Sheueling Chang Shantz and Douglas Stebila
1257 (Sun Microsystems Laboratories)]
1259 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1260 functionality is disabled at compile-time.
1261 [Douglas Stebila <douglas.stebila@sun.com>]
1263 *) Change default behaviour of 'openssl asn1parse' so that more
1264 information is visible when viewing, e.g., a certificate:
1266 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1267 mode the content of non-printable OCTET STRINGs is output in a
1268 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1269 avoid the appearance of a printable string.
1270 [Nils Larsch <nla@trustcenter.de>]
1272 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1274 EC_GROUP_set_asn1_flag()
1275 EC_GROUP_get_asn1_flag()
1276 EC_GROUP_set_point_conversion_form()
1277 EC_GROUP_get_point_conversion_form()
1278 These control ASN1 encoding details:
1279 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1280 has been set to OPENSSL_EC_NAMED_CURVE.
1281 - Points are encoded in uncompressed form by default; options for
1282 asn1_for are as for point2oct, namely
1283 POINT_CONVERSION_COMPRESSED
1284 POINT_CONVERSION_UNCOMPRESSED
1285 POINT_CONVERSION_HYBRID
1287 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1290 EC_GROUP_get0_seed()
1291 EC_GROUP_get_seed_len()
1292 This is used only for ASN1 purposes (so far).
1293 [Nils Larsch <nla@trustcenter.de>]
1295 *) Add 'field_type' member to EC_METHOD, which holds the NID
1296 of the appropriate field type OID. The new function
1297 EC_METHOD_get_field_type() returns this value.
1298 [Nils Larsch <nla@trustcenter.de>]
1303 EC_POINT_point2hex()
1304 EC_POINT_hex2point()
1305 providing useful interfaces to EC_POINT_point2oct() and
1306 EC_POINT_oct2point().
1307 [Nils Larsch <nla@trustcenter.de>]
1309 *) Change internals of the EC library so that the functions
1310 EC_GROUP_set_generator()
1311 EC_GROUP_get_generator()
1312 EC_GROUP_get_order()
1313 EC_GROUP_get_cofactor()
1314 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1315 to methods, which would lead to unnecessary code duplication when
1316 adding different types of curves.
1317 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1319 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1320 arithmetic, and such that modified wNAFs are generated
1321 (which avoid length expansion in many cases).
1324 *) Add a function EC_GROUP_check_discriminant() (defined via
1325 EC_METHOD) that verifies that the curve discriminant is non-zero.
1327 Add a function EC_GROUP_check() that makes some sanity tests
1328 on a EC_GROUP, its generator and order. This includes
1329 EC_GROUP_check_discriminant().
1330 [Nils Larsch <nla@trustcenter.de>]
1332 *) Add ECDSA in new directory crypto/ecdsa/.
1334 Add applications 'openssl ecparam' and 'openssl ecdsa'
1335 (these are based on 'openssl dsaparam' and 'openssl dsa').
1337 ECDSA support is also included in various other files across the
1338 library. Most notably,
1339 - 'openssl req' now has a '-newkey ecdsa:file' option;
1340 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1341 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1342 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1343 them suitable for ECDSA where domain parameters must be
1344 extracted before the specific public key;
1345 - ECDSA engine support has been added.
1346 [Nils Larsch <nla@trustcenter.de>]
1348 *) Include some named elliptic curves, and add OIDs from X9.62,
1349 SECG, and WAP/WTLS. Each curve can be obtained from the new
1351 EC_GROUP_new_by_curve_name(),
1352 and the list of available named curves can be obtained with
1353 EC_get_builtin_curves().
1354 Also add a 'curve_name' member to EC_GROUP objects, which can be
1356 EC_GROUP_set_curve_name()
1357 EC_GROUP_get_curve_name()
1358 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1360 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1361 was actually never needed) and in BN_mul(). The removal in BN_mul()
1362 required a small change in bn_mul_part_recursive() and the addition
1363 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1364 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1365 bn_sub_words() and bn_add_words() except they take arrays with
1369 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1371 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1372 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1374 *) Change the Unix randomness entropy gathering to use poll() when
1375 possible instead of select(), since the latter has some
1376 undesirable limitations.
1377 [Darryl Miles via Richard Levitte and Bodo Moeller]
1379 *) Disable rogue ciphersuites:
1381 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1382 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1383 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1385 The latter two were purportedly from
1386 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1389 Also deactive the remaining ciphersuites from
1390 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1391 unofficial, and the ID has long expired.
1394 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1395 dual-core machines) and other potential thread-safety issues.
1398 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1400 *) Adapt fipsld and the build system to link against the validated FIPS
1401 module in FIPS mode.
1404 *) Fixes for VC++ 2005 build under Windows.
1407 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1408 from a Windows bash shell such as MSYS. It is autodetected from the
1409 "config" script when run from a VC++ environment. Modify standard VC++
1410 build to use fipscanister.o from the GNU make build.
1413 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1415 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1416 The value now differs depending on if you build for FIPS or not.
1417 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1418 safely run with a non-FIPSed libcrypto, as it may crash because of
1419 the difference induced by this change.
1422 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1424 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1425 (part of SSL_OP_ALL). This option used to disable the
1426 countermeasure against man-in-the-middle protocol-version
1427 rollback in the SSL 2.0 server implementation, which is a bad
1428 idea. (CVE-2005-2969)
1430 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1431 for Information Security, National Institute of Advanced Industrial
1432 Science and Technology [AIST], Japan)]
1434 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1435 mainly for FIPS compliance and not fully integrated at this stage.
1438 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1439 the exponentiation using a fixed-length exponent. (Otherwise,
1440 the information leaked through timing could expose the secret key
1441 after many signatures; cf. Bleichenbacher's attack on DSA with
1445 *) Make a new fixed-window mod_exp implementation the default for
1446 RSA, DSA, and DH private-key operations so that the sequence of
1447 squares and multiplies and the memory access pattern are
1448 independent of the particular secret key. This will mitigate
1449 cache-timing and potential related attacks.
1451 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1452 and this is automatically used by BN_mod_exp_mont() if the new flag
1453 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1454 will use this BN flag for private exponents unless the flag
1455 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1456 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1458 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1460 *) Change the client implementation for SSLv23_method() and
1461 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1462 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1463 (Previously, the SSL 2.0 backwards compatible Client Hello
1464 message format would be used even with SSL_OP_NO_SSLv2.)
1467 *) Add support for smime-type MIME parameter in S/MIME messages which some
1471 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1472 a threadsafe manner. Modify rsa code to use new function and add calls
1473 to dsa and dh code (which had race conditions before).
1476 *) Include the fixed error library code in the C error file definitions
1477 instead of fixing them up at runtime. This keeps the error code
1478 structures constant.
1481 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1483 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1486 *) Fixes for newer kerberos headers. NB: the casts are needed because
1487 the 'length' field is signed on one version and unsigned on another
1488 with no (?) obvious way to tell the difference, without these VC++
1489 complains. Also the "definition" of FAR (blank) is no longer included
1490 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1491 some needed definitions.
1494 *) Undo Cygwin change.
1497 *) Added support for proxy certificates according to RFC 3820.
1498 Because they may be a security thread to unaware applications,
1499 they must be explicitely allowed in run-time. See
1500 docs/HOWTO/proxy_certificates.txt for further information.
1503 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1505 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1506 server and client random values. Previously
1507 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1508 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1510 This change has negligible security impact because:
1512 1. Server and client random values still have 24 bytes of pseudo random
1515 2. Server and client random values are sent in the clear in the initial
1518 3. The master secret is derived using the premaster secret (48 bytes in
1519 size for static RSA ciphersuites) as well as client server and random
1522 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1525 [Stephen Henson, reported by UK NISCC]
1527 *) Use Windows randomness collection on Cygwin.
1530 *) Fix hang in EGD/PRNGD query when communication socket is closed
1531 prematurely by EGD/PRNGD.
1532 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1534 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1537 *) Back-port of selected performance improvements from development
1538 branch, as well as improved support for PowerPC platforms.
1541 *) Add lots of checks for memory allocation failure, error codes to indicate
1542 failure and freeing up memory if a failure occurs.
1543 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1545 *) Add new -passin argument to dgst.
1548 *) Perform some character comparisons of different types in X509_NAME_cmp:
1549 this is needed for some certificates that reencode DNs into UTF8Strings
1550 (in violation of RFC3280) and can't or wont issue name rollover
1554 *) Make an explicit check during certificate validation to see that
1555 the CA setting in each certificate on the chain is correct. As a
1556 side effect always do the following basic checks on extensions,
1557 not just when there's an associated purpose to the check:
1559 - if there is an unhandled critical extension (unless the user
1560 has chosen to ignore this fault)
1561 - if the path length has been exceeded (if one is set at all)
1562 - that certain extensions fit the associated purpose (if one has
1566 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1568 *) Avoid a race condition when CRLs are checked in a multi threaded
1569 environment. This would happen due to the reordering of the revoked
1570 entries during signature checking and serial number lookup. Now the
1571 encoding is cached and the serial number sort performed under a lock.
1572 Add new STACK function sk_is_sorted().
1575 *) Add Delta CRL to the extension code.
1578 *) Various fixes to s3_pkt.c so alerts are sent properly.
1579 [David Holmes <d.holmes@f5.com>]
1581 *) Reduce the chances of duplicate issuer name and serial numbers (in
1582 violation of RFC3280) using the OpenSSL certificate creation utilities.
1583 This is done by creating a random 64 bit value for the initial serial
1584 number when a serial number file is created or when a self signed
1585 certificate is created using 'openssl req -x509'. The initial serial
1586 number file is created using 'openssl x509 -next_serial' in CA.pl
1587 rather than being initialized to 1.
1590 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1592 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1593 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1594 [Joe Orton, Steve Henson]
1596 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1598 [Joe Orton, Steve Henson]
1600 *) Make it possible to have multiple active certificates with the same
1601 subject in the CA index file. This is done only if the keyword
1602 'unique_subject' is set to 'no' in the main CA section (default
1603 if 'CA_default') of the configuration file. The value is saved
1604 with the database itself in a separate index attribute file,
1605 named like the index file with '.attr' appended to the name.
1608 *) X509 verify fixes. Disable broken certificate workarounds when
1609 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1610 keyUsage extension present. Don't accept CRLs with unhandled critical
1611 extensions: since verify currently doesn't process CRL extensions this
1612 rejects a CRL with *any* critical extensions. Add new verify error codes
1616 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1617 A clarification of RFC2560 will require the use of OCTET STRINGs and
1618 some implementations cannot handle the current raw format. Since OpenSSL
1619 copies and compares OCSP nonces as opaque blobs without any attempt at
1620 parsing them this should not create any compatibility issues.
1623 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1624 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1625 this HMAC (and other) operations are several times slower than OpenSSL
1629 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1630 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1632 *) Use the correct content when signing type "other".
1635 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1637 *) Fix various bugs revealed by running the NISCC test suite:
1639 Stop out of bounds reads in the ASN1 code when presented with
1640 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1642 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1644 If verify callback ignores invalid public key errors don't try to check
1645 certificate signature with the NULL public key.
1649 *) New -ignore_err option in ocsp application to stop the server
1650 exiting on the first error in a request.
1653 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1654 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1658 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1659 extra data after the compression methods not only for TLS 1.0
1660 but also for SSL 3.0 (as required by the specification).
1661 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1663 *) Change X509_certificate_type() to mark the key as exported/exportable
1664 when it's 512 *bits* long, not 512 bytes.
1667 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1668 blocks during encryption.
1671 *) Various fixes to base64 BIO and non blocking I/O. On write
1672 flushes were not handled properly if the BIO retried. On read
1673 data was not being buffered properly and had various logic bugs.
1674 This also affects blocking I/O when the data being decoded is a
1678 *) Various S/MIME bugfixes and compatibility changes:
1679 output correct application/pkcs7 MIME type if
1680 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1681 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1682 of files as .eml work). Correctly handle very long lines in MIME
1686 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1688 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1689 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1690 a protocol version number mismatch like a decryption error
1691 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1694 *) Turn on RSA blinding by default in the default implementation
1695 to avoid a timing attack. Applications that don't want it can call
1696 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1697 They would be ill-advised to do so in most cases.
1698 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1700 *) Change RSA blinding code so that it works when the PRNG is not
1701 seeded (in this case, the secret RSA exponent is abused as
1702 an unpredictable seed -- if it is not unpredictable, there
1703 is no point in blinding anyway). Make RSA blinding thread-safe
1704 by remembering the creator's thread ID in rsa->blinding and
1705 having all other threads use local one-time blinding factors
1706 (this requires more computation than sharing rsa->blinding, but
1707 avoids excessive locking; and if an RSA object is not shared
1708 between threads, blinding will still be very fast).
1711 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1712 ENGINE as defaults for all supported algorithms irrespective of
1713 the 'flags' parameter. 'flags' is now honoured, so applications
1714 should make sure they are passing it correctly.
1717 *) Target "mingw" now allows native Windows code to be generated in
1718 the Cygwin environment as well as with the MinGW compiler.
1721 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1723 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1724 via timing by performing a MAC computation even if incorrrect
1725 block cipher padding has been found. This is a countermeasure
1726 against active attacks where the attacker has to distinguish
1727 between bad padding and a MAC verification error. (CVE-2003-0078)
1729 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1730 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1731 Martin Vuagnoux (EPFL, Ilion)]
1733 *) Make the no-err option work as intended. The intention with no-err
1734 is not to have the whole error stack handling routines removed from
1735 libcrypto, it's only intended to remove all the function name and
1736 reason texts, thereby removing some of the footprint that may not
1737 be interesting if those errors aren't displayed anyway.
1739 NOTE: it's still possible for any application or module to have it's
1740 own set of error texts inserted. The routines are there, just not
1741 used by default when no-err is given.
1744 *) Add support for FreeBSD on IA64.
1745 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1747 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1748 Kerberos function mit_des_cbc_cksum(). Before this change,
1749 the value returned by DES_cbc_cksum() was like the one from
1750 mit_des_cbc_cksum(), except the bytes were swapped.
1751 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1753 *) Allow an application to disable the automatic SSL chain building.
1754 Before this a rather primitive chain build was always performed in
1755 ssl3_output_cert_chain(): an application had no way to send the
1756 correct chain if the automatic operation produced an incorrect result.
1758 Now the chain builder is disabled if either:
1760 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1762 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1764 The reasoning behind this is that an application would not want the
1765 auto chain building to take place if extra chain certificates are
1766 present and it might also want a means of sending no additional
1767 certificates (for example the chain has two certificates and the
1771 *) Add the possibility to build without the ENGINE framework.
1772 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1774 *) Under Win32 gmtime() can return NULL: check return value in
1775 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1778 *) DSA routines: under certain error conditions uninitialized BN objects
1779 could be freed. Solution: make sure initialization is performed early
1780 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1781 Nils Larsch <nla@trustcenter.de> via PR#459)
1784 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1785 checked on reconnect on the client side, therefore session resumption
1786 could still fail with a "ssl session id is different" error. This
1787 behaviour is masked when SSL_OP_ALL is used due to
1788 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1789 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1790 followup to PR #377.
1793 *) IA-32 assembler support enhancements: unified ELF targets, support
1794 for SCO/Caldera platforms, fix for Cygwin shared build.
1797 *) Add support for FreeBSD on sparc64. As a consequence, support for
1798 FreeBSD on non-x86 processors is separate from x86 processors on
1799 the config script, much like the NetBSD support.
1800 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1802 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1804 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1807 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1808 code (06) was taken as the first octet of the session ID and the last
1809 octet was ignored consequently. As a result SSLv2 client side session
1810 caching could not have worked due to the session ID mismatch between
1812 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1816 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1817 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1821 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1822 seems that in spite of existing for more than a year, many application
1823 author have done nothing to provide the necessary callbacks, which
1824 means that this particular engine will not work properly anywhere.
1825 This is a very unfortunate situation which forces us, in the name
1826 of usability, to give the hw_ncipher.c a static lock, which is part
1828 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1829 appear in 0.9.8 or later. We EXPECT application authors to have
1830 dealt properly with this when 0.9.8 is released (unless we actually
1831 make such changes in the libcrypto locking code that changes will
1832 have to be made anyway).
1835 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1836 octets have been read, EOF or an error occurs. Without this change
1837 some truncated ASN1 structures will not produce an error.
1840 *) Disable Heimdal support, since it hasn't been fully implemented.
1841 Still give the possibility to force the use of Heimdal, but with
1842 warnings and a request that patches get sent to openssl-dev.
1845 *) Add the VC-CE target, introduce the WINCE sysname, and add
1846 INSTALL.WCE and appropriate conditionals to make it build.
1847 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1849 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1850 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1851 edit numbers of the version.
1852 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1854 *) Introduce safe string copy and catenation functions
1855 (BUF_strlcpy() and BUF_strlcat()).
1856 [Ben Laurie (CHATS) and Richard Levitte]
1858 *) Avoid using fixed-size buffers for one-line DNs.
1859 [Ben Laurie (CHATS)]
1861 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1862 resizing buffers containing secrets, and use where appropriate.
1863 [Ben Laurie (CHATS)]
1865 *) Avoid using fixed size buffers for configuration file location.
1866 [Ben Laurie (CHATS)]
1868 *) Avoid filename truncation for various CA files.
1869 [Ben Laurie (CHATS)]
1871 *) Use sizeof in preference to magic numbers.
1872 [Ben Laurie (CHATS)]
1874 *) Avoid filename truncation in cert requests.
1875 [Ben Laurie (CHATS)]
1877 *) Add assertions to check for (supposedly impossible) buffer
1879 [Ben Laurie (CHATS)]
1881 *) Don't cache truncated DNS entries in the local cache (this could
1882 potentially lead to a spoofing attack).
1883 [Ben Laurie (CHATS)]
1885 *) Fix various buffers to be large enough for hex/decimal
1886 representations in a platform independent manner.
1887 [Ben Laurie (CHATS)]
1889 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1890 resizing buffers containing secrets, and use where appropriate.
1891 [Ben Laurie (CHATS)]
1893 *) Add BIO_indent() to avoid much slightly worrying code to do
1895 [Ben Laurie (CHATS)]
1897 *) Convert sprintf()/BIO_puts() to BIO_printf().
1898 [Ben Laurie (CHATS)]
1900 *) buffer_gets() could terminate with the buffer only half
1902 [Ben Laurie (CHATS)]
1904 *) Add assertions to prevent user-supplied crypto functions from
1905 overflowing internal buffers by having large block sizes, etc.
1906 [Ben Laurie (CHATS)]
1908 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1910 [Ben Laurie (CHATS)]
1912 *) Eliminate unused copy of key in RC4.
1913 [Ben Laurie (CHATS)]
1915 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1916 [Ben Laurie (CHATS)]
1918 *) Fix off-by-one error in EGD path.
1919 [Ben Laurie (CHATS)]
1921 *) If RANDFILE path is too long, ignore instead of truncating.
1922 [Ben Laurie (CHATS)]
1924 *) Eliminate unused and incorrectly sized X.509 structure
1926 [Ben Laurie (CHATS)]
1928 *) Eliminate unused and dangerous function knumber().
1929 [Ben Laurie (CHATS)]
1931 *) Eliminate unused and dangerous structure, KSSL_ERR.
1932 [Ben Laurie (CHATS)]
1934 *) Protect against overlong session ID context length in an encoded
1935 session object. Since these are local, this does not appear to be
1937 [Ben Laurie (CHATS)]
1939 *) Change from security patch (see 0.9.6e below) that did not affect
1940 the 0.9.6 release series:
1942 Remote buffer overflow in SSL3 protocol - an attacker could
1943 supply an oversized master key in Kerberos-enabled versions.
1945 [Ben Laurie (CHATS)]
1947 *) Change the SSL kerb5 codes to match RFC 2712.
1950 *) Make -nameopt work fully for req and add -reqopt switch.
1951 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1953 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1954 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1956 *) Make sure tests can be performed even if the corresponding algorithms
1957 have been removed entirely. This was also the last step to make
1958 OpenSSL compilable with DJGPP under all reasonable conditions.
1959 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1961 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1962 to allow version independent disabling of normally unselected ciphers,
1963 which may be activated as a side-effect of selecting a single cipher.
1965 (E.g., cipher list string "RSA" enables ciphersuites that are left
1966 out of "ALL" because they do not provide symmetric encryption.
1967 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1968 [Lutz Jaenicke, Bodo Moeller]
1970 *) Add appropriate support for separate platform-dependent build
1971 directories. The recommended way to make a platform-dependent
1972 build directory is the following (tested on Linux), maybe with
1975 # Place yourself outside of the OpenSSL source tree. In
1976 # this example, the environment variable OPENSSL_SOURCE
1977 # is assumed to contain the absolute OpenSSL source directory.
1978 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1979 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1980 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1981 mkdir -p `dirname $F`
1982 ln -s $OPENSSL_SOURCE/$F $F
1985 To be absolutely sure not to disturb the source tree, a "make clean"
1986 is a good thing. If it isn't successfull, don't worry about it,
1987 it probably means the source directory is very clean.
1990 *) Make sure any ENGINE control commands make local copies of string
1991 pointers passed to them whenever necessary. Otherwise it is possible
1992 the caller may have overwritten (or deallocated) the original string
1993 data when a later ENGINE operation tries to use the stored values.
1994 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1996 *) Improve diagnostics in file reading and command-line digests.
1997 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1999 *) Add AES modes CFB and OFB to the object database. Correct an
2000 error in AES-CFB decryption.
2003 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2004 allows existing EVP_CIPHER_CTX structures to be reused after
2005 calling EVP_*Final(). This behaviour is used by encryption
2006 BIOs and some applications. This has the side effect that
2007 applications must explicitly clean up cipher contexts with
2008 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2011 *) Check the values of dna and dnb in bn_mul_recursive before calling
2012 bn_mul_comba (a non zero value means the a or b arrays do not contain
2013 n2 elements) and fallback to bn_mul_normal if either is not zero.
2016 *) Fix escaping of non-ASCII characters when using the -subj option
2017 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2020 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2021 form for "surname", serialNumber has no short form.
2022 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2023 therefore remove "mail" short name for "internet 7".
2024 The OID for unique identifiers in X509 certificates is
2025 x500UniqueIdentifier, not uniqueIdentifier.
2026 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2029 *) Add an "init" command to the ENGINE config module and auto initialize
2030 ENGINEs. Without any "init" command the ENGINE will be initialized
2031 after all ctrl commands have been executed on it. If init=1 the
2032 ENGINE is initailized at that point (ctrls before that point are run
2033 on the uninitialized ENGINE and after on the initialized one). If
2034 init=0 then the ENGINE will not be iniatialized at all.
2037 *) Fix the 'app_verify_callback' interface so that the user-defined
2038 argument is actually passed to the callback: In the
2039 SSL_CTX_set_cert_verify_callback() prototype, the callback
2040 declaration has been changed from
2043 int (*cb)(X509_STORE_CTX *,void *);
2044 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2045 i=s->ctx->app_verify_callback(&ctx)
2046 has been changed into
2047 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2049 To update applications using SSL_CTX_set_cert_verify_callback(),
2050 a dummy argument can be added to their callback functions.
2051 [D. K. Smetters <smetters@parc.xerox.com>]
2053 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2054 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2056 *) Add and OPENSSL_LOAD_CONF define which will cause
2057 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2058 This allows older applications to transparently support certain
2059 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2060 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2061 load the config file and OPENSSL_add_all_algorithms_conf() which will
2062 always load it have also been added.
2065 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2066 Adjust NIDs and EVP layer.
2067 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2069 *) Config modules support in openssl utility.
2071 Most commands now load modules from the config file,
2072 though in a few (such as version) this isn't done
2073 because it couldn't be used for anything.
2075 In the case of ca and req the config file used is
2076 the same as the utility itself: that is the -config
2077 command line option can be used to specify an
2081 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2082 use "openssl_conf" if filename is NULL use default openssl config file.
2085 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2086 config section name. Add a new flag to tolerate a missing config file
2087 and move code to CONF_modules_load_file().
2090 *) Support for crypto accelerator cards from Accelerated Encryption
2091 Processing, www.aep.ie. (Use engine 'aep')
2092 The support was copied from 0.9.6c [engine] and adapted/corrected
2093 to work with the new engine framework.
2094 [AEP Inc. and Richard Levitte]
2096 *) Support for SureWare crypto accelerator cards from Baltimore
2097 Technologies. (Use engine 'sureware')
2098 The support was copied from 0.9.6c [engine] and adapted
2099 to work with the new engine framework.
2102 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2103 make the newer ENGINE framework commands for the CHIL engine work.
2104 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2106 *) Make it possible to produce shared libraries on ReliantUNIX.
2107 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2109 *) Add the configuration target debug-linux-ppro.
2110 Make 'openssl rsa' use the general key loading routines
2111 implemented in apps.c, and make those routines able to
2112 handle the key format FORMAT_NETSCAPE and the variant
2114 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2116 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2117 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2119 *) Add -keyform to rsautl, and document -engine.
2120 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2122 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2123 BIO_R_NO_SUCH_FILE error code rather than the generic
2124 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2127 *) Add new functions
2129 ERR_peek_last_error_line
2130 ERR_peek_last_error_line_data.
2131 These are similar to
2134 ERR_peek_error_line_data,
2135 but report on the latest error recorded rather than the first one
2136 still in the error queue.
2137 [Ben Laurie, Bodo Moeller]
2139 *) default_algorithms option in ENGINE config module. This allows things
2141 default_algorithms = ALL
2142 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2145 *) Prelminary ENGINE config module.
2148 *) New experimental application configuration code.
2151 *) Change the AES code to follow the same name structure as all other
2152 symmetric ciphers, and behave the same way. Move everything to
2153 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2154 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2156 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2157 [Ben Laurie and Theo de Raadt]
2159 *) Add option to output public keys in req command.
2160 [Massimiliano Pala madwolf@openca.org]
2162 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2163 (up to about 10% better than before for P-192 and P-224).
2166 *) New functions/macros
2168 SSL_CTX_set_msg_callback(ctx, cb)
2169 SSL_CTX_set_msg_callback_arg(ctx, arg)
2170 SSL_set_msg_callback(ssl, cb)
2171 SSL_set_msg_callback_arg(ssl, arg)
2173 to request calling a callback function
2175 void cb(int write_p, int version, int content_type,
2176 const void *buf, size_t len, SSL *ssl, void *arg)
2178 whenever a protocol message has been completely received
2179 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2180 protocol version according to which the SSL library interprets
2181 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2182 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2183 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2184 specification (change_cipher_spec(20), alert(21), handshake(22)).
2185 'buf' and 'len' point to the actual message, 'ssl' to the
2186 SSL object, and 'arg' is the application-defined value set by
2187 SSL[_CTX]_set_msg_callback_arg().
2189 'openssl s_client' and 'openssl s_server' have new '-msg' options
2190 to enable a callback that displays all protocol messages.
2193 *) Change the shared library support so shared libraries are built as
2194 soon as the corresponding static library is finished, and thereby get
2195 openssl and the test programs linked against the shared library.
2196 This still only happens when the keyword "shard" has been given to
2197 the configuration scripts.
2199 NOTE: shared library support is still an experimental thing, and
2200 backward binary compatibility is still not guaranteed.
2201 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2203 *) Add support for Subject Information Access extension.
2204 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2206 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2207 additional bytes when new memory had to be allocated, not just
2208 when reusing an existing buffer.
2211 *) New command line and configuration option 'utf8' for the req command.
2212 This allows field values to be specified as UTF8 strings.
2215 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2216 runs for the former and machine-readable output for the latter.
2219 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2220 of the e-mail address in the DN (i.e., it will go into a certificate
2221 extension only). The new configuration file option 'email_in_dn = no'
2222 has the same effect.
2223 [Massimiliano Pala madwolf@openca.org]
2225 *) Change all functions with names starting with des_ to be starting
2226 with DES_ instead. Add wrappers that are compatible with libdes,
2227 but are named _ossl_old_des_*. Finally, add macros that map the
2228 des_* symbols to the corresponding _ossl_old_des_* if libdes
2229 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2230 desired, the des_* symbols will be mapped to DES_*, with one
2233 Since we provide two compatibility mappings, the user needs to
2234 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2235 compatibility is desired. The default (i.e., when that macro
2236 isn't defined) is OpenSSL 0.9.6c compatibility.
2238 There are also macros that enable and disable the support of old
2239 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2240 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2241 are defined, the default will apply: to support the old des routines.
2243 In either case, one must include openssl/des.h to get the correct
2244 definitions. Do not try to just include openssl/des_old.h, that
2247 NOTE: This is a major break of an old API into a new one. Software
2248 authors are encouraged to switch to the DES_ style functions. Some
2249 time in the future, des_old.h and the libdes compatibility functions
2250 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2251 default), and then completely removed.
2254 *) Test for certificates which contain unsupported critical extensions.
2255 If such a certificate is found during a verify operation it is
2256 rejected by default: this behaviour can be overridden by either
2257 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2258 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2259 X509_supported_extension() has also been added which returns 1 if a
2260 particular extension is supported.
2263 *) Modify the behaviour of EVP cipher functions in similar way to digests
2264 to retain compatibility with existing code.
2267 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2268 compatibility with existing code. In particular the 'ctx' parameter does
2269 not have to be to be initialized before the call to EVP_DigestInit() and
2270 it is tidied up after a call to EVP_DigestFinal(). New function
2271 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2272 EVP_MD_CTX_copy() changed to not require the destination to be
2273 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2274 requires the destination to be valid.
2276 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2277 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2280 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2281 so that complete 'Handshake' protocol structures are kept in memory
2282 instead of overwriting 'msg_type' and 'length' with 'body' data.
2285 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2286 [Massimo Santin via Richard Levitte]
2288 *) Major restructuring to the underlying ENGINE code. This includes
2289 reduction of linker bloat, separation of pure "ENGINE" manipulation
2290 (initialisation, etc) from functionality dealing with implementations
2291 of specific crypto iterfaces. This change also introduces integrated
2292 support for symmetric ciphers and digest implementations - so ENGINEs
2293 can now accelerate these by providing EVP_CIPHER and EVP_MD
2294 implementations of their own. This is detailed in crypto/engine/README
2295 as it couldn't be adequately described here. However, there are a few
2296 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2297 were changed in the original introduction of ENGINE code have now
2298 reverted back - the hooking from this code to ENGINE is now a good
2299 deal more passive and at run-time, operations deal directly with
2300 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2301 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2302 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2303 they were not being used by the framework as there is no concept of a
2304 BIGNUM_METHOD and they could not be generalised to the new
2305 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2306 ENGINE_cpy() has been removed as it cannot be consistently defined in
2310 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2313 *) Change mkdef.pl to sort symbols that get the same entry number,
2314 and make sure the automatically generated functions ERR_load_*
2315 become part of libeay.num as well.
2318 *) New function SSL_renegotiate_pending(). This returns true once
2319 renegotiation has been requested (either SSL_renegotiate() call
2320 or HelloRequest/ClientHello receveived from the peer) and becomes
2321 false once a handshake has been completed.
2322 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2323 sends a HelloRequest, but does not ensure that a handshake takes
2324 place. SSL_renegotiate_pending() is useful for checking if the
2325 client has followed the request.)
2328 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2329 By default, clients may request session resumption even during
2330 renegotiation (if session ID contexts permit); with this option,
2331 session resumption is possible only in the first handshake.
2333 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2334 more bits available for options that should not be part of
2335 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2338 *) Add some demos for certificate and certificate request creation.
2341 *) Make maximum certificate chain size accepted from the peer application
2342 settable (SSL*_get/set_max_cert_list()), as proposed by
2343 "Douglas E. Engert" <deengert@anl.gov>.
2346 *) Add support for shared libraries for Unixware-7
2347 (Boyd Lynn Gerber <gerberb@zenez.com>).
2350 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2351 be done prior to destruction. Use this to unload error strings from
2352 ENGINEs that load their own error strings. NB: This adds two new API
2353 functions to "get" and "set" this destroy handler in an ENGINE.
2356 *) Alter all existing ENGINE implementations (except "openssl" and
2357 "openbsd") to dynamically instantiate their own error strings. This
2358 makes them more flexible to be built both as statically-linked ENGINEs
2359 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2360 Also, add stub code to each that makes building them as self-contained
2361 shared-libraries easier (see README.ENGINE).
2364 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2365 implementations into applications that are completely implemented in
2366 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2367 commands that can be used to configure what shared-library to load and
2368 to control aspects of the way it is handled. Also, made an update to
2369 the README.ENGINE file that brings its information up-to-date and
2370 provides some information and instructions on the "dynamic" ENGINE
2371 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2374 *) Make it possible to unload ranges of ERR strings with a new
2375 "ERR_unload_strings" function.
2378 *) Add a copy() function to EVP_MD.
2381 *) Make EVP_MD routines take a context pointer instead of just the
2382 md_data void pointer.
2385 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2386 that the digest can only process a single chunk of data
2387 (typically because it is provided by a piece of
2388 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2389 is only going to provide a single chunk of data, and hence the
2390 framework needn't accumulate the data for oneshot drivers.
2393 *) As with "ERR", make it possible to replace the underlying "ex_data"
2394 functions. This change also alters the storage and management of global
2395 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2396 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2397 index counters. The API functions that use this state have been changed
2398 to take a "class_index" rather than pointers to the class's local STACK
2399 and counter, and there is now an API function to dynamically create new
2400 classes. This centralisation allows us to (a) plug a lot of the
2401 thread-safety problems that existed, and (b) makes it possible to clean
2402 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2403 such data would previously have always leaked in application code and
2404 workarounds were in place to make the memory debugging turn a blind eye
2405 to it. Application code that doesn't use this new function will still
2406 leak as before, but their memory debugging output will announce it now
2407 rather than letting it slide.
2409 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2410 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2411 has a return value to indicate success or failure.
2414 *) Make it possible to replace the underlying "ERR" functions such that the
2415 global state (2 LHASH tables and 2 locks) is only used by the "default"
2416 implementation. This change also adds two functions to "get" and "set"
2417 the implementation prior to it being automatically set the first time
2418 any other ERR function takes place. Ie. an application can call "get",
2419 pass the return value to a module it has just loaded, and that module
2420 can call its own "set" function using that value. This means the
2421 module's "ERR" operations will use (and modify) the error state in the
2422 application and not in its own statically linked copy of OpenSSL code.
2425 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2426 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2427 the operation, and provides a more encapsulated way for external code
2428 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2429 to use these functions rather than manually incrementing the counts.
2431 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2434 *) Add EVP test program.
2437 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2440 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2441 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2442 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2443 These allow a CRL to be built without having to access X509_CRL fields
2444 directly. Modify 'ca' application to use new functions.
2447 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2448 bug workarounds. Rollback attack detection is a security feature.
2449 The problem will only arise on OpenSSL servers when TLSv1 is not
2450 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2451 Software authors not wanting to support TLSv1 will have special reasons
2452 for their choice and can explicitly enable this option.
2453 [Bodo Moeller, Lutz Jaenicke]
2455 *) Rationalise EVP so it can be extended: don't include a union of
2456 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2457 (similar to those existing for EVP_CIPHER_CTX).
2462 EVP_MD_CTX_init(&md); /* new function call */
2463 EVP_DigestInit(&md, EVP_sha1());
2464 EVP_DigestUpdate(&md, in, len);
2465 EVP_DigestFinal(&md, out, NULL);
2466 EVP_MD_CTX_cleanup(&md); /* new function call */
2470 *) Make DES key schedule conform to the usual scheme, as well as
2471 correcting its structure. This means that calls to DES functions
2472 now have to pass a pointer to a des_key_schedule instead of a
2473 plain des_key_schedule (which was actually always a pointer
2476 des_key_schedule ks;
2478 des_set_key_checked(..., &ks);
2479 des_ncbc_encrypt(..., &ks, ...);
2481 (Note that a later change renames 'des_...' into 'DES_...'.)
2484 *) Initial reduction of linker bloat: the use of some functions, such as
2485 PEM causes large amounts of unused functions to be linked in due to
2486 poor organisation. For example pem_all.c contains every PEM function
2487 which has a knock on effect of linking in large amounts of (unused)
2488 ASN1 code. Grouping together similar functions and splitting unrelated
2489 functions prevents this.
2492 *) Cleanup of EVP macros.
2495 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2496 correct _ecb suffix.
2499 *) Add initial OCSP responder support to ocsp application. The
2500 revocation information is handled using the text based index
2501 use by the ca application. The responder can either handle
2502 requests generated internally, supplied in files (for example
2503 via a CGI script) or using an internal minimal server.
2506 *) Add configuration choices to get zlib compression for TLS.
2509 *) Changes to Kerberos SSL for RFC 2712 compliance:
2510 1. Implemented real KerberosWrapper, instead of just using
2511 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2512 2. Implemented optional authenticator field of KerberosWrapper.
2514 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2515 and authenticator structs; see crypto/krb5/.
2517 Generalized Kerberos calls to support multiple Kerberos libraries.
2518 [Vern Staats <staatsvr@asc.hpc.mil>,
2519 Jeffrey Altman <jaltman@columbia.edu>
2520 via Richard Levitte]
2522 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2523 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2524 values for each of the key sizes rather than having just
2525 parameters (and 'speed' generating keys each time).
2528 *) Speed up EVP routines.
2531 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2532 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2533 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2534 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2536 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2537 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2538 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2541 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2543 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2546 *) Added the OS2-EMX target.
2547 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2549 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2550 to support NCONF routines in extension code. New function CONF_set_nconf()
2551 to allow functions which take an NCONF to also handle the old LHASH
2552 structure: this means that the old CONF compatible routines can be
2553 retained (in particular wrt extensions) without having to duplicate the
2554 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2557 *) Enhance the general user interface with mechanisms for inner control
2558 and with possibilities to have yes/no kind of prompts.
2561 *) Change all calls to low level digest routines in the library and
2562 applications to use EVP. Add missing calls to HMAC_cleanup() and
2563 don't assume HMAC_CTX can be copied using memcpy().
2564 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2566 *) Add the possibility to control engines through control names but with
2567 arbitrary arguments instead of just a string.
2568 Change the key loaders to take a UI_METHOD instead of a callback
2569 function pointer. NOTE: this breaks binary compatibility with earlier
2570 versions of OpenSSL [engine].
2571 Adapt the nCipher code for these new conditions and add a card insertion
2575 *) Enhance the general user interface with mechanisms to better support
2576 dialog box interfaces, application-defined prompts, the possibility
2577 to use defaults (for example default passwords from somewhere else)
2578 and interrupts/cancellations.
2581 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2582 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2585 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2586 tidy up some unnecessarily weird code in 'sk_new()').
2587 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2589 *) Change the key loading routines for ENGINEs to use the same kind
2590 callback (pem_password_cb) as all other routines that need this
2594 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2595 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2596 than this minimum value is recommended.
2599 *) New random seeder for OpenVMS, using the system process statistics
2600 that are easily reachable.
2603 *) Windows apparently can't transparently handle global
2604 variables defined in DLLs. Initialisations such as:
2606 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2608 wont compile. This is used by the any applications that need to
2609 declare their own ASN1 modules. This was fixed by adding the option
2610 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2611 needed for static libraries under Win32.
2614 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2615 setting of purpose and trust fields. New X509_STORE trust and
2616 purpose functions and tidy up setting in other SSL functions.
2619 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2620 structure. These are inherited by X509_STORE_CTX when it is
2621 initialised. This allows various defaults to be set in the
2622 X509_STORE structure (such as flags for CRL checking and custom
2623 purpose or trust settings) for functions which only use X509_STORE_CTX
2624 internally such as S/MIME.
2626 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2627 trust settings if they are not set in X509_STORE. This allows X509_STORE
2628 purposes and trust (in S/MIME for example) to override any set by default.
2630 Add command line options for CRL checking to smime, s_client and s_server
2634 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2635 are set then the CRL is looked up in the X509_STORE structure and
2636 its validity and signature checked, then if the certificate is found
2637 in the CRL the verify fails with a revoked error.
2639 Various new CRL related callbacks added to X509_STORE_CTX structure.
2641 Command line options added to 'verify' application to support this.
2643 This needs some additional work, such as being able to handle multiple
2644 CRLs with different times, extension based lookup (rather than just
2645 by subject name) and ultimately more complete V2 CRL extension
2649 *) Add a general user interface API (crypto/ui/). This is designed
2650 to replace things like des_read_password and friends (backward
2651 compatibility functions using this new API are provided).
2652 The purpose is to remove prompting functions from the DES code
2653 section as well as provide for prompting through dialog boxes in
2654 a window system and the like.
2657 *) Add "ex_data" support to ENGINE so implementations can add state at a
2658 per-structure level rather than having to store it globally.
2661 *) Make it possible for ENGINE structures to be copied when retrieved by
2662 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2663 This causes the "original" ENGINE structure to act like a template,
2664 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2665 operational state can be localised to each ENGINE structure, despite the
2666 fact they all share the same "methods". New ENGINE structures returned in
2667 this case have no functional references and the return value is the single
2668 structural reference. This matches the single structural reference returned
2669 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2673 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2674 needs to match any other type at all we need to manually clear the
2678 *) Changes to the "openssl engine" utility to include;
2679 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2680 about an ENGINE's available control commands.
2681 - executing control commands from command line arguments using the
2682 '-pre' and '-post' switches. '-post' is only used if '-t' is
2683 specified and the ENGINE is successfully initialised. The syntax for
2684 the individual commands are colon-separated, for example;
2685 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2688 *) New dynamic control command support for ENGINEs. ENGINEs can now
2689 declare their own commands (numbers), names (strings), descriptions,
2690 and input types for run-time discovery by calling applications. A
2691 subset of these commands are implicitly classed as "executable"
2692 depending on their input type, and only these can be invoked through
2693 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2694 can be based on user input, config files, etc). The distinction is
2695 that "executable" commands cannot return anything other than a boolean
2696 result and can only support numeric or string input, whereas some
2697 discoverable commands may only be for direct use through
2698 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2699 pointers, or other custom uses. The "executable" commands are to
2700 support parameterisations of ENGINE behaviour that can be
2701 unambiguously defined by ENGINEs and used consistently across any
2702 OpenSSL-based application. Commands have been added to all the
2703 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2704 control over shared-library paths without source code alterations.
2707 *) Changed all ENGINE implementations to dynamically allocate their
2708 ENGINEs rather than declaring them statically. Apart from this being
2709 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2710 this also allows the implementations to compile without using the
2711 internal engine_int.h header.
2714 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2715 'const' value. Any code that should be able to modify a RAND_METHOD
2716 should already have non-const pointers to it (ie. they should only
2717 modify their own ones).
2720 *) Made a variety of little tweaks to the ENGINE code.
2721 - "atalla" and "ubsec" string definitions were moved from header files
2722 to C code. "nuron" string definitions were placed in variables
2723 rather than hard-coded - allowing parameterisation of these values
2724 later on via ctrl() commands.
2725 - Removed unused "#if 0"'d code.
2726 - Fixed engine list iteration code so it uses ENGINE_free() to release
2727 structural references.
2728 - Constified the RAND_METHOD element of ENGINE structures.
2729 - Constified various get/set functions as appropriate and added
2730 missing functions (including a catch-all ENGINE_cpy that duplicates
2731 all ENGINE values onto a new ENGINE except reference counts/state).
2732 - Removed NULL parameter checks in get/set functions. Setting a method
2733 or function to NULL is a way of cancelling out a previously set
2734 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2735 and doesn't justify the extra error symbols and code.
2736 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2737 flags from engine_int.h to engine.h.
2738 - Changed prototypes for ENGINE handler functions (init(), finish(),
2739 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2742 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2743 to the algorithm using long division. The binary algorithm can be
2744 used only if the modulus is odd. On 32-bit systems, it is faster
2745 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2746 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2747 up to 450 bits. In 64-bit environments, the binary algorithm
2748 appears to be advantageous for much longer moduli; here we use it
2749 for moduli up to 2048 bits.
2752 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2753 could not support the combine flag in choice fields.
2756 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2757 extensions from a certificate request to the certificate.
2760 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2761 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2762 file: this allows the display of the certificate about to be
2763 signed to be customised, to allow certain fields to be included
2764 or excluded and extension details. The old system didn't display
2765 multicharacter strings properly, omitted fields not in the policy
2766 and couldn't display additional details such as extensions.
2769 *) Function EC_POINTs_mul for multiple scalar multiplication
2770 of an arbitrary number of elliptic curve points
2771 \sum scalars[i]*points[i],
2772 optionally including the generator defined for the EC_GROUP:
2773 scalar*generator + \sum scalars[i]*points[i].
2775 EC_POINT_mul is a simple wrapper function for the typical case
2776 that the point list has just one item (besides the optional
2780 *) First EC_METHODs for curves over GF(p):
2782 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2783 operations and provides various method functions that can also
2784 operate with faster implementations of modular arithmetic.
2786 EC_GFp_mont_method() reuses most functions that are part of
2787 EC_GFp_simple_method, but uses Montgomery arithmetic.
2789 [Bodo Moeller; point addition and point doubling
2790 implementation directly derived from source code provided by
2791 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2793 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2794 crypto/ec/ec_lib.c):
2796 Curves are EC_GROUP objects (with an optional group generator)
2797 based on EC_METHODs that are built into the library.
2799 Points are EC_POINT objects based on EC_GROUP objects.
2801 Most of the framework would be able to handle curves over arbitrary
2802 finite fields, but as there are no obvious types for fields other
2803 than GF(p), some functions are limited to that for now.
2806 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2807 that the file contains a complete HTTP response.
2810 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2811 change the def and num file printf format specifier from "%-40sXXX"
2812 to "%-39s XXX". The latter will always guarantee a space after the
2813 field while the former will cause them to run together if the field
2814 is 40 of more characters long.
2817 *) Constify the cipher and digest 'method' functions and structures
2818 and modify related functions to take constant EVP_MD and EVP_CIPHER
2822 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2823 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2826 *) Modify EVP_Digest*() routines so they now return values. Although the
2827 internal software routines can never fail additional hardware versions
2831 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2833 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2834 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2837 ERR_R_NESTED_ASN1_ERROR
2839 ERR_R_MISSING_ASN1_EOS
2840 were 4 .. 9, conflicting with
2841 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2843 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2844 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2846 Add new error code 'ERR_R_INTERNAL_ERROR'.
2849 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2853 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2854 sets the subject name for a new request or supersedes the
2855 subject name in a given request. Formats that can be parsed are
2856 'CN=Some Name, OU=myOU, C=IT'
2858 'CN=Some Name/OU=myOU/C=IT'.
2860 Add options '-batch' and '-verbose' to 'openssl req'.
2861 [Massimiliano Pala <madwolf@hackmasters.net>]
2863 *) Introduce the possibility to access global variables through
2864 functions on platform were that's the best way to handle exporting
2865 global variables in shared libraries. To enable this functionality,
2866 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2867 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2868 is normally done by Configure or something similar).
2870 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2871 in the source file (foo.c) like this:
2873 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2874 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2876 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2877 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2879 OPENSSL_DECLARE_GLOBAL(int,foo);
2880 #define foo OPENSSL_GLOBAL_REF(foo)
2881 OPENSSL_DECLARE_GLOBAL(double,bar);
2882 #define bar OPENSSL_GLOBAL_REF(bar)
2884 The #defines are very important, and therefore so is including the
2885 header file everywhere where the defined globals are used.
2887 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2888 of ASN.1 items, but that structure is a bit different.
2890 The largest change is in util/mkdef.pl which has been enhanced with
2891 better and easier to understand logic to choose which symbols should
2892 go into the Windows .def files as well as a number of fixes and code
2893 cleanup (among others, algorithm keywords are now sorted
2894 lexicographically to avoid constant rewrites).
2897 *) In BN_div() keep a copy of the sign of 'num' before writing the
2898 result to 'rm' because if rm==num the value will be overwritten
2899 and produce the wrong result if 'num' is negative: this caused
2900 problems with BN_mod() and BN_nnmod().
2903 *) Function OCSP_request_verify(). This checks the signature on an
2904 OCSP request and verifies the signer certificate. The signer
2905 certificate is just checked for a generic purpose and OCSP request
2909 *) Add OCSP_check_validity() function to check the validity of OCSP
2910 responses. OCSP responses are prepared in real time and may only
2911 be a few seconds old. Simply checking that the current time lies
2912 between thisUpdate and nextUpdate max reject otherwise valid responses
2913 caused by either OCSP responder or client clock inaccuracy. Instead
2914 we allow thisUpdate and nextUpdate to fall within a certain period of
2915 the current time. The age of the response can also optionally be
2916 checked. Two new options -validity_period and -status_age added to
2920 *) If signature or public key algorithm is unrecognized print out its
2921 OID rather that just UNKNOWN.
2924 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2925 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2926 ID to be generated from the issuer certificate alone which can then be
2927 passed to OCSP_id_issuer_cmp().
2930 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2931 ASN1 modules to export functions returning ASN1_ITEM pointers
2932 instead of the ASN1_ITEM structures themselves. This adds several
2933 new macros which allow the underlying ASN1 function/structure to
2934 be accessed transparently. As a result code should not use ASN1_ITEM
2935 references directly (such as &X509_it) but instead use the relevant
2936 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2937 use of the new ASN1 code on platforms where exporting structures
2938 is problematical (for example in shared libraries) but exporting
2939 functions returning pointers to structures is not.
2942 *) Add support for overriding the generation of SSL/TLS session IDs.
2943 These callbacks can be registered either in an SSL_CTX or per SSL.
2944 The purpose of this is to allow applications to control, if they wish,
2945 the arbitrary values chosen for use as session IDs, particularly as it
2946 can be useful for session caching in multiple-server environments. A
2947 command-line switch for testing this (and any client code that wishes
2948 to use such a feature) has been added to "s_server".
2949 [Geoff Thorpe, Lutz Jaenicke]
2951 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2952 of the form '#if defined(...) || defined(...) || ...' and
2953 '#if !defined(...) && !defined(...) && ...'. This also avoids
2954 the growing number of special cases it was previously handling.
2957 *) Make all configuration macros available for application by making
2958 sure they are available in opensslconf.h, by giving them names starting
2959 with "OPENSSL_" to avoid conflicts with other packages and by making
2960 sure e_os2.h will cover all platform-specific cases together with
2962 Additionally, it is now possible to define configuration/platform-
2963 specific names (called "system identities"). In the C code, these
2964 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2965 macro with the name beginning with "OPENSSL_SYS_", which is determined
2966 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2970 *) New option -set_serial to 'req' and 'x509' this allows the serial
2971 number to use to be specified on the command line. Previously self
2972 signed certificates were hard coded with serial number 0 and the
2973 CA options of 'x509' had to use a serial number in a file which was
2977 *) New options to 'ca' utility to support V2 CRL entry extensions.
2978 Currently CRL reason, invalidity date and hold instruction are
2979 supported. Add new CRL extensions to V3 code and some new objects.
2982 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2983 disable standard block padding (aka PKCS#5 padding) in the EVP
2984 API, which was previously mandatory. This means that the data is
2985 not padded in any way and so the total length much be a multiple
2986 of the block size, otherwise an error occurs.
2989 *) Initial (incomplete) OCSP SSL support.
2992 *) New function OCSP_parse_url(). This splits up a URL into its host,
2993 port and path components: primarily to parse OCSP URLs. New -url
2994 option to ocsp utility.
2997 *) New nonce behavior. The return value of OCSP_check_nonce() now
2998 reflects the various checks performed. Applications can decide
2999 whether to tolerate certain situations such as an absent nonce
3000 in a response when one was present in a request: the ocsp application
3001 just prints out a warning. New function OCSP_add1_basic_nonce()
3002 this is to allow responders to include a nonce in a response even if
3003 the request is nonce-less.
3006 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3007 skipped when using openssl x509 multiple times on a single input file,
3008 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3011 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3012 set string type: to handle setting ASN1_TIME structures. Fix ca
3013 utility to correctly initialize revocation date of CRLs.
3016 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3017 the clients preferred ciphersuites and rather use its own preferences.
3018 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3019 Internet Explorer by ensuring unchanged hash method during stepup.
3020 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3023 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3024 to aes and add a new 'exist' option to print out symbols that don't
3028 *) Additional options to ocsp utility to allow flags to be set and
3029 additional certificates supplied.
3032 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3033 OCSP client a number of certificate to only verify the response
3037 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3038 handle the new API. Currently only ECB, CBC modes supported. Add new
3041 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3042 Encryption Standard (AES) Ciphersuites for Transport Layer
3043 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3044 not enabled by default and were not part of the "ALL" ciphersuite
3045 alias because they were not yet official; they could be
3046 explicitly requested by specifying the "AESdraft" ciphersuite
3047 group alias. In the final release of OpenSSL 0.9.7, the group
3048 alias is called "AES" and is part of "ALL".)
3049 [Ben Laurie, Steve Henson, Bodo Moeller]
3051 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3052 request to response.
3055 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3056 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3057 extract information from a certificate request. OCSP_response_create()
3058 creates a response and optionally adds a basic response structure.
3059 OCSP_basic_add1_status() adds a complete single response to a basic
3060 response and returns the OCSP_SINGLERESP structure just added (to allow
3061 extensions to be included for example). OCSP_basic_add1_cert() adds a
3062 certificate to a basic response and OCSP_basic_sign() signs a basic
3063 response with various flags. New helper functions ASN1_TIME_check()
3064 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3065 (converts ASN1_TIME to GeneralizedTime).
3068 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3069 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3070 structure from a certificate. X509_pubkey_digest() digests the public_key
3071 contents: this is used in various key identifiers.
3074 *) Make sk_sort() tolerate a NULL argument.
3075 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3077 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3078 passed by the function are trusted implicitly. If any of them signed the
3079 response then it is assumed to be valid and is not verified.
3082 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3083 to data. This was previously part of the PKCS7 ASN1 code. This
3084 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3085 [Steve Henson, reported by Kenneth R. Robinette
3086 <support@securenetterm.com>]
3088 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3089 routines: without these tracing memory leaks is very painful.
3090 Fix leaks in PKCS12 and PKCS7 routines.
3093 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3094 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3095 effectively meant GeneralizedTime would never be used. Now it
3096 is initialised to -1 but X509_time_adj() now has to check the value
3097 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3098 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3099 [Steve Henson, reported by Kenneth R. Robinette
3100 <support@securenetterm.com>]
3102 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3103 result in a zero length in the ASN1_INTEGER structure which was
3104 not consistent with the structure when d2i_ASN1_INTEGER() was used
3105 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3106 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3107 where it did not print out a minus for negative ASN1_INTEGER.
3110 *) Add summary printout to ocsp utility. The various functions which
3111 convert status values to strings have been renamed to:
3112 OCSP_response_status_str(), OCSP_cert_status_str() and
3113 OCSP_crl_reason_str() and are no longer static. New options
3114 to verify nonce values and to disable verification. OCSP response
3115 printout format cleaned up.
3118 *) Add additional OCSP certificate checks. These are those specified
3119 in RFC2560. This consists of two separate checks: the CA of the
3120 certificate being checked must either be the OCSP signer certificate
3121 or the issuer of the OCSP signer certificate. In the latter case the
3122 OCSP signer certificate must contain the OCSP signing extended key
3123 usage. This check is performed by attempting to match the OCSP
3124 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3125 in the OCSP_CERTID structures of the response.
3128 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3129 and related routines. This uses the standard OpenSSL certificate
3130 verify routines to perform initial checks (just CA validity) and
3131 to obtain the certificate chain. Then additional checks will be
3132 performed on the chain. Currently the root CA is checked to see
3133 if it is explicitly trusted for OCSP signing. This is used to set
3134 a root CA as a global signing root: that is any certificate that
3135 chains to that CA is an acceptable OCSP signing certificate.
3138 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3139 extensions from a separate configuration file.
3140 As when reading extensions from the main configuration file,
3141 the '-extensions ...' option may be used for specifying the
3143 [Massimiliano Pala <madwolf@comune.modena.it>]
3145 *) New OCSP utility. Allows OCSP requests to be generated or
3146 read. The request can be sent to a responder and the output
3147 parsed, outputed or printed in text form. Not complete yet:
3148 still needs to check the OCSP response validity.
3151 *) New subcommands for 'openssl ca':
3152 'openssl ca -status <serial>' prints the status of the cert with
3153 the given serial number (according to the index file).
3154 'openssl ca -updatedb' updates the expiry status of certificates
3156 [Massimiliano Pala <madwolf@comune.modena.it>]
3158 *) New '-newreq-nodes' command option to CA.pl. This is like
3159 '-newreq', but calls 'openssl req' with the '-nodes' option
3160 so that the resulting key is not encrypted.
3161 [Damien Miller <djm@mindrot.org>]
3163 *) New configuration for the GNU Hurd.
3164 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3166 *) Initial code to implement OCSP basic response verify. This
3167 is currently incomplete. Currently just finds the signer's
3168 certificate and verifies the signature on the response.
3171 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3172 value of OPENSSLDIR. This is available via the new '-d' option
3173 to 'openssl version', and is also included in 'openssl version -a'.
3176 *) Allowing defining memory allocation callbacks that will be given
3177 file name and line number information in additional arguments
3178 (a const char* and an int). The basic functionality remains, as
3179 well as the original possibility to just replace malloc(),
3180 realloc() and free() by functions that do not know about these
3181 additional arguments. To register and find out the current
3182 settings for extended allocation functions, the following
3183 functions are provided:
3185 CRYPTO_set_mem_ex_functions
3186 CRYPTO_set_locked_mem_ex_functions
3187 CRYPTO_get_mem_ex_functions
3188 CRYPTO_get_locked_mem_ex_functions
3190 These work the same way as CRYPTO_set_mem_functions and friends.
3191 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3192 extended allocation function is enabled.
3193 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3194 a conventional allocation function is enabled.
3195 [Richard Levitte, Bodo Moeller]
3197 *) Finish off removing the remaining LHASH function pointer casts.
3198 There should no longer be any prototype-casting required when using
3199 the LHASH abstraction, and any casts that remain are "bugs". See
3200 the callback types and macros at the head of lhash.h for details
3201 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3204 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3205 If /dev/[u]random devices are not available or do not return enough
3206 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3208 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3209 /etc/entropy will be queried once each in this sequence, quering stops
3210 when enough entropy was collected without querying more sockets.
3213 *) Change the Unix RAND_poll() variant to be able to poll several
3214 random devices, as specified by DEVRANDOM, until a sufficient amount
3215 of data has been collected. We spend at most 10 ms on each file
3216 (select timeout) and read in non-blocking mode. DEVRANDOM now
3217 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3218 (previously it was just the string "/dev/urandom"), so on typical
3219 platforms the 10 ms delay will never occur.
3220 Also separate out the Unix variant to its own file, rand_unix.c.
3221 For VMS, there's a currently-empty rand_vms.c.
3224 *) Move OCSP client related routines to ocsp_cl.c. These
3225 provide utility functions which an application needing
3226 to issue a request to an OCSP responder and analyse the
3227 response will typically need: as opposed to those which an
3228 OCSP responder itself would need which will be added later.
3230 OCSP_request_sign() signs an OCSP request with an API similar
3231 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3232 response. OCSP_response_get1_basic() extracts basic response
3233 from response. OCSP_resp_find_status(): finds and extracts status
3234 information from an OCSP_CERTID structure (which will be created
3235 when the request structure is built). These are built from lower
3236 level functions which work on OCSP_SINGLERESP structures but
3237 wont normally be used unless the application wishes to examine
3238 extensions in the OCSP response for example.
3240 Replace nonce routines with a pair of functions.
3241 OCSP_request_add1_nonce() adds a nonce value and optionally
3242 generates a random value. OCSP_check_nonce() checks the
3243 validity of the nonce in an OCSP response.
3246 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3247 This doesn't copy the supplied OCSP_CERTID and avoids the
3248 need to free up the newly created id. Change return type
3249 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3250 This can then be used to add extensions to the request.
3251 Deleted OCSP_request_new(), since most of its functionality
3252 is now in OCSP_REQUEST_new() (and the case insensitive name
3253 clash) apart from the ability to set the request name which
3254 will be added elsewhere.
3257 *) Update OCSP API. Remove obsolete extensions argument from
3258 various functions. Extensions are now handled using the new
3259 OCSP extension code. New simple OCSP HTTP function which
3260 can be used to send requests and parse the response.
3263 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3264 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3265 uses the special reorder version of SET OF to sort the attributes
3266 and reorder them to match the encoded order. This resolves a long
3267 standing problem: a verify on a PKCS7 structure just after signing
3268 it used to fail because the attribute order did not match the
3269 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3270 it uses the received order. This is necessary to tolerate some broken
3271 software that does not order SET OF. This is handled by encoding
3272 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3273 to produce the required SET OF.
3276 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3277 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3278 files to get correct declarations of the ASN.1 item variables.
3281 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3282 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3283 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3284 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3285 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3286 ASN1_ITEM and no wrapper functions.
3289 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3290 replace the old function pointer based I/O routines. Change most of
3291 the *_d2i_bio() and *_d2i_fp() functions to use these.
3294 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3295 lines, recognice more "algorithms" that can be deselected, and make
3296 it complain about algorithm deselection that isn't recognised.
3299 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3300 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3301 to use new functions. Add NO_ASN1_OLD which can be set to remove
3302 some old style ASN1 functions: this can be used to determine if old
3303 code will still work when these eventually go away.
3306 *) New extension functions for OCSP structures, these follow the
3307 same conventions as certificates and CRLs.
3310 *) New function X509V3_add1_i2d(). This automatically encodes and
3311 adds an extension. Its behaviour can be customised with various
3312 flags to append, replace or delete. Various wrappers added for
3313 certifcates and CRLs.
3316 *) Fix to avoid calling the underlying ASN1 print routine when
3317 an extension cannot be parsed. Correct a typo in the
3318 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3321 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3322 entries for variables.
3325 *) Add functionality to apps/openssl.c for detecting locking
3326 problems: As the program is single-threaded, all we have
3327 to do is register a locking callback using an array for
3328 storing which locks are currently held by the program.
3331 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3332 SSL_get_ex_data_X509_STORE_idx(), which is used in
3333 ssl_verify_cert_chain() and thus can be called at any time
3334 during TLS/SSL handshakes so that thread-safety is essential.
3335 Unfortunately, the ex_data design is not at all suited
3336 for multi-threaded use, so it probably should be abolished.
3339 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3340 [Broadcom, tweaked and integrated by Geoff Thorpe]
3342 *) Move common extension printing code to new function
3343 X509V3_print_extensions(). Reorganise OCSP print routines and
3344 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3347 *) New function X509_signature_print() to remove duplication in some
3351 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3352 set (this was treated exactly the same as SET OF previously). This
3353 is used to reorder the STACK representing the structure to match the
3354 encoding. This will be used to get round a problem where a PKCS7
3355 structure which was signed could not be verified because the STACK
3356 order did not reflect the encoded order.
3359 *) Reimplement the OCSP ASN1 module using the new code.
3362 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3363 for its ASN1 operations. The old style function pointers still exist
3364 for now but they will eventually go away.
3367 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3368 completely replaces the old ASN1 functionality with a table driven
3369 encoder and decoder which interprets an ASN1_ITEM structure describing
3370 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3371 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3372 has also been converted to the new form.
3375 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3376 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3377 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3378 for negative moduli.
3381 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3382 of not touching the result's sign bit.
3385 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3389 *) Changed the LHASH code to use prototypes for callbacks, and created
3390 macros to declare and implement thin (optionally static) functions
3391 that provide type-safety and avoid function pointer casting for the
3392 type-specific callbacks.
3395 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3397 [Veers Staats <staatsvr@asc.hpc.mil>,
3398 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3400 *) Reformat the FAQ so the different questions and answers can be divided
3401 in sections depending on the subject.
3404 *) Have the zlib compression code load ZLIB.DLL dynamically under
3408 *) New function BN_mod_sqrt for computing square roots modulo a prime
3409 (using the probabilistic Tonelli-Shanks algorithm unless
3410 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3411 be handled deterministically).
3412 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3414 *) Make BN_mod_inverse faster by explicitly handling small quotients
3415 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3416 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3419 *) New function BN_kronecker.
3422 *) Fix BN_gcd so that it works on negative inputs; the result is
3423 positive unless both parameters are zero.
3424 Previously something reasonably close to an infinite loop was
3425 possible because numbers could be growing instead of shrinking
3426 in the implementation of Euclid's algorithm.
3429 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3430 sign of the number in question.
3432 Fix BN_is_word(a,w) to work correctly for w == 0.
3434 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3435 because its test if the absolute value of 'a' equals 'w'.
3436 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3437 it exists mostly for use in the implementations of BN_is_zero(),
3438 BN_is_one(), and BN_is_word().
3441 *) New function BN_swap.
3444 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3445 the exponentiation functions are more likely to produce reasonable
3446 results on negative inputs.
3449 *) Change BN_mod_mul so that the result is always non-negative.
3450 Previously, it could be negative if one of the factors was negative;
3451 I don't think anyone really wanted that behaviour.
3454 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3455 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3456 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3457 and add new functions:
3466 BN_mod_lshift1_quick
3470 These functions always generate non-negative results.
3472 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3473 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3475 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3476 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3477 be reduced modulo m.
3478 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3481 The following entry accidentily appeared in the CHANGES file
3482 distributed with OpenSSL 0.9.7. The modifications described in
3483 it do *not* apply to OpenSSL 0.9.7.
3485 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3486 was actually never needed) and in BN_mul(). The removal in BN_mul()
3487 required a small change in bn_mul_part_recursive() and the addition
3488 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3489 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3490 bn_sub_words() and bn_add_words() except they take arrays with
3495 *) In 'openssl passwd', verify passwords read from the terminal
3496 unless the '-salt' option is used (which usually means that
3497 verification would just waste user's time since the resulting
3498 hash is going to be compared with some given password hash)
3499 or the new '-noverify' option is used.
3501 This is an incompatible change, but it does not affect
3502 non-interactive use of 'openssl passwd' (passwords on the command
3503 line, '-stdin' option, '-in ...' option) and thus should not
3507 *) Remove all references to RSAref, since there's no more need for it.
3510 *) Make DSO load along a path given through an environment variable
3511 (SHLIB_PATH) with shl_load().
3514 *) Constify the ENGINE code as a result of BIGNUM constification.
3515 Also constify the RSA code and most things related to it. In a
3516 few places, most notable in the depth of the ASN.1 code, ugly
3517 casts back to non-const were required (to be solved at a later
3521 *) Make it so the openssl application has all engines loaded by default.
3524 *) Constify the BIGNUM routines a little more.
3527 *) Add the following functions:
3529 ENGINE_load_cswift()
3531 ENGINE_load_atalla()
3533 ENGINE_load_builtin_engines()
3535 That way, an application can itself choose if external engines that
3536 are built-in in OpenSSL shall ever be used or not. The benefit is
3537 that applications won't have to be linked with libdl or other dso
3538 libraries unless it's really needed.
3540 Changed 'openssl engine' to load all engines on demand.
3541 Changed the engine header files to avoid the duplication of some
3542 declarations (they differed!).
3545 *) 'openssl engine' can now list capabilities.
3548 *) Better error reporting in 'openssl engine'.
3551 *) Never call load_dh_param(NULL) in s_server.
3554 *) Add engine application. It can currently list engines by name and
3555 identity, and test if they are actually available.
3558 *) Improve RPM specification file by forcing symbolic linking and making
3559 sure the installed documentation is also owned by root.root.
3560 [Damien Miller <djm@mindrot.org>]
3562 *) Give the OpenSSL applications more possibilities to make use of
3563 keys (public as well as private) handled by engines.
3566 *) Add OCSP code that comes from CertCo.
3569 *) Add VMS support for the Rijndael code.
3572 *) Added untested support for Nuron crypto accelerator.
3575 *) Add support for external cryptographic devices. This code was
3576 previously distributed separately as the "engine" branch.
3577 [Geoff Thorpe, Richard Levitte]
3579 *) Rework the filename-translation in the DSO code. It is now possible to
3580 have far greater control over how a "name" is turned into a filename
3581 depending on the operating environment and any oddities about the
3582 different shared library filenames on each system.
3585 *) Support threads on FreeBSD-elf in Configure.
3588 *) Fix for SHA1 assembly problem with MASM: it produces
3589 warnings about corrupt line number information when assembling
3590 with debugging information. This is caused by the overlapping
3592 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3595 NCONF_get_number() has no error checking at all. As a replacement,
3596 NCONF_get_number_e() is defined (_e for "error checking") and is
3597 promoted strongly. The old NCONF_get_number is kept around for
3598 binary backward compatibility.
3599 Make it possible for methods to load from something other than a BIO,
3600 by providing a function pointer that is given a name instead of a BIO.
3601 For example, this could be used to load configuration data from an
3605 *) Fix for non blocking accept BIOs. Added new I/O special reason
3606 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3607 with non blocking I/O was not possible because no retry code was
3608 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3612 *) Added the beginnings of Rijndael support.
3615 *) Fix for bug in DirectoryString mask setting. Add support for
3616 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3617 to allow certificate printing to more controllable, additional
3618 'certopt' option to 'x509' to allow new printing options to be
3622 *) Clean old EAY MD5 hack from e_os.h.
3625 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3627 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3628 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3629 [Joe Orton, Steve Henson]
3631 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3633 *) Fix additional bug revealed by the NISCC test suite:
3635 Stop bug triggering large recursion when presented with
3636 certain ASN.1 tags (CVE-2003-0851)
3639 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3641 *) Fix various bugs revealed by running the NISCC test suite:
3643 Stop out of bounds reads in the ASN1 code when presented with
3644 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3646 If verify callback ignores invalid public key errors don't try to check
3647 certificate signature with the NULL public key.
3651 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3652 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3656 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3657 extra data after the compression methods not only for TLS 1.0
3658 but also for SSL 3.0 (as required by the specification).
3659 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3661 *) Change X509_certificate_type() to mark the key as exported/exportable
3662 when it's 512 *bits* long, not 512 bytes.
3665 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3667 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3668 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3669 a protocol version number mismatch like a decryption error
3670 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3673 *) Turn on RSA blinding by default in the default implementation
3674 to avoid a timing attack. Applications that don't want it can call
3675 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3676 They would be ill-advised to do so in most cases.
3677 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3679 *) Change RSA blinding code so that it works when the PRNG is not
3680 seeded (in this case, the secret RSA exponent is abused as
3681 an unpredictable seed -- if it is not unpredictable, there
3682 is no point in blinding anyway). Make RSA blinding thread-safe
3683 by remembering the creator's thread ID in rsa->blinding and
3684 having all other threads use local one-time blinding factors
3685 (this requires more computation than sharing rsa->blinding, but
3686 avoids excessive locking; and if an RSA object is not shared
3687 between threads, blinding will still be very fast).
3690 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3692 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3693 via timing by performing a MAC computation even if incorrrect
3694 block cipher padding has been found. This is a countermeasure
3695 against active attacks where the attacker has to distinguish
3696 between bad padding and a MAC verification error. (CVE-2003-0078)
3698 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3699 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3700 Martin Vuagnoux (EPFL, Ilion)]
3702 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3704 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3705 memory from it's contents. This is done with a counter that will
3706 place alternating values in each byte. This can be used to solve
3707 two issues: 1) the removal of calls to memset() by highly optimizing
3708 compilers, and 2) cleansing with other values than 0, since those can
3709 be read through on certain media, for example a swap space on disk.
3712 *) Bugfix: client side session caching did not work with external caching,
3713 because the session->cipher setting was not restored when reloading
3714 from the external cache. This problem was masked, when
3715 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3716 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3719 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3720 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3721 [Zeev Lieber <zeev-l@yahoo.com>]
3723 *) Undo an undocumented change introduced in 0.9.6e which caused
3724 repeated calls to OpenSSL_add_all_ciphers() and
3725 OpenSSL_add_all_digests() to be ignored, even after calling
3729 *) Change the default configuration reader to deal with last line not
3730 being properly terminated.
3733 *) Change X509_NAME_cmp() so it applies the special rules on handling
3734 DN values that are of type PrintableString, as well as RDNs of type
3735 emailAddress where the value has the type ia5String.
3736 [stefank@valicert.com via Richard Levitte]
3738 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3739 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3740 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3741 the bitwise-OR of the two for use by the majority of applications
3742 wanting this behaviour, and update the docs. The documented
3743 behaviour and actual behaviour were inconsistent and had been
3744 changing anyway, so this is more a bug-fix than a behavioural
3746 [Geoff Thorpe, diagnosed by Nadav Har'El]
3748 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3749 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3752 *) Fix initialization code race conditions in
3753 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3754 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3755 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3756 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3757 ssl2_get_cipher_by_char(),
3758 ssl3_get_cipher_by_char().
3759 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3761 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3762 the cached sessions are flushed, as the remove_cb() might use ex_data
3763 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3764 (see [openssl.org #212]).
3765 [Geoff Thorpe, Lutz Jaenicke]
3767 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3768 length, instead of the encoding length to d2i_ASN1_OBJECT.
3771 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3773 *) [In 0.9.6g-engine release:]
3774 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3775 [Lynn Gazis <lgazis@rainbow.com>]
3777 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3779 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3780 and get fix the header length calculation.
3781 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3782 Alon Kantor <alonk@checkpoint.com> (and others),
3785 *) Use proper error handling instead of 'assertions' in buffer
3786 overflow checks added in 0.9.6e. This prevents DoS (the
3787 assertions could call abort()).
3788 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3790 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3792 *) Add various sanity checks to asn1_get_length() to reject
3793 the ASN1 length bytes if they exceed sizeof(long), will appear
3794 negative or the content length exceeds the length of the
3796 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3798 *) Fix cipher selection routines: ciphers without encryption had no flags
3799 for the cipher strength set and where therefore not handled correctly
3800 by the selection routines (PR #130).
3803 *) Fix EVP_dsa_sha macro.
3807 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3808 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3809 that was added in OpenSSL 0.9.6d.
3811 As the countermeasure turned out to be incompatible with some
3812 broken SSL implementations, the new option is part of SSL_OP_ALL.
3813 SSL_OP_ALL is usually employed when compatibility with weird SSL
3814 implementations is desired (e.g. '-bugs' option to 's_client' and
3815 's_server'), so the new option is automatically set in many
3819 *) Changes in security patch:
3821 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3822 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3823 Air Force Materiel Command, USAF, under agreement number
3826 *) Add various sanity checks to asn1_get_length() to reject
3827 the ASN1 length bytes if they exceed sizeof(long), will appear
3828 negative or the content length exceeds the length of the
3829 supplied buffer. (CVE-2002-0659)
3830 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3832 *) Assertions for various potential buffer overflows, not known to
3834 [Ben Laurie (CHATS)]
3836 *) Various temporary buffers to hold ASCII versions of integers were
3837 too small for 64 bit platforms. (CVE-2002-0655)
3838 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3840 *) Remote buffer overflow in SSL3 protocol - an attacker could
3841 supply an oversized session ID to a client. (CVE-2002-0656)
3842 [Ben Laurie (CHATS)]
3844 *) Remote buffer overflow in SSL2 protocol - an attacker could
3845 supply an oversized client master key. (CVE-2002-0656)
3846 [Ben Laurie (CHATS)]
3848 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3850 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3851 encoded as NULL) with id-dsa-with-sha1.
3852 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3854 *) Check various X509_...() return values in apps/req.c.
3855 [Nils Larsch <nla@trustcenter.de>]
3857 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3858 an end-of-file condition would erronously be flagged, when the CRLF
3859 was just at the end of a processed block. The bug was discovered when
3860 processing data through a buffering memory BIO handing the data to a
3861 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3862 <ptsekov@syntrex.com> and Nedelcho Stanev.
3865 *) Implement a countermeasure against a vulnerability recently found
3866 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3867 before application data chunks to avoid the use of known IVs
3868 with data potentially chosen by the attacker.
3871 *) Fix length checks in ssl3_get_client_hello().
3874 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3875 to prevent ssl3_read_internal() from incorrectly assuming that
3876 ssl3_read_bytes() found application data while handshake
3877 processing was enabled when in fact s->s3->in_read_app_data was
3878 merely automatically cleared during the initial handshake.
3879 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3881 *) Fix object definitions for Private and Enterprise: they were not
3882 recognized in their shortname (=lowercase) representation. Extend
3883 obj_dat.pl to issue an error when using undefined keywords instead
3884 of silently ignoring the problem (Svenning Sorensen
3885 <sss@sss.dnsalias.net>).
3888 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3889 generators, i.e. generators other than 2 and 5. (Previously, the
3890 code did not properly initialise the 'add' and 'rem' values to
3891 BN_generate_prime().)
3893 In the new general case, we do not insist that 'generator' is
3894 actually a primitive root: This requirement is rather pointless;
3895 a generator of the order-q subgroup is just as good, if not
3899 *) Map new X509 verification errors to alerts. Discovered and submitted by
3900 Tom Wu <tom@arcot.com>.
3903 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3904 returning non-zero before the data has been completely received
3905 when using non-blocking I/O.
3906 [Bodo Moeller; problem pointed out by John Hughes]
3908 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3909 [Ben Laurie, Lutz Jaenicke]
3911 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3912 Yoram Zahavi <YoramZ@gilian.com>).
3915 *) Add information about CygWin 1.3 and on, and preserve proper
3916 configuration for the versions before that.
3917 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3919 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3920 check whether we deal with a copy of a session and do not delete from
3921 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3922 <izhar@checkpoint.com>.
3925 *) Do not store session data into the internal session cache, if it
3926 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3927 flag is set). Proposed by Aslam <aslam@funk.com>.
3930 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3934 *) [In 0.9.6d-engine release:]
3935 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3936 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3938 *) Add the configuration target linux-s390x.
3939 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3941 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3942 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3943 variable as an indication that a ClientHello message has been
3944 received. As the flag value will be lost between multiple
3945 invocations of ssl3_accept when using non-blocking I/O, the
3946 function may not be aware that a handshake has actually taken
3947 place, thus preventing a new session from being added to the
3950 To avoid this problem, we now set s->new_session to 2 instead of
3951 using a local variable.
3952 [Lutz Jaenicke, Bodo Moeller]
3954 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3955 if the SSL_R_LENGTH_MISMATCH error is detected.
3956 [Geoff Thorpe, Bodo Moeller]
3958 *) New 'shared_ldflag' column in Configure platform table.
3961 *) Fix EVP_CIPHER_mode macro.
3962 ["Dan S. Camper" <dan@bti.net>]
3964 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3965 type, we must throw them away by setting rr->length to 0.
3966 [D P Chang <dpc@qualys.com>]
3968 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3970 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3971 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3972 worked incorrectly for those cases where range = 10..._2 and
3973 3*range is two bits longer than range.)
3976 *) Only add signing time to PKCS7 structures if it is not already
3980 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3981 OBJ_ld_ce should be OBJ_id_ce.
3982 Also some ip-pda OIDs in crypto/objects/objects.txt were
3983 incorrect (cf. RFC 3039).
3984 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3986 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3987 returns early because it has nothing to do.
3988 [Andy Schneider <andy.schneider@bjss.co.uk>]
3990 *) [In 0.9.6c-engine release:]
3991 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3992 [Andy Schneider <andy.schneider@bjss.co.uk>]
3994 *) [In 0.9.6c-engine release:]
3995 Add support for Cryptographic Appliance's keyserver technology.
3996 (Use engine 'keyclient')
3997 [Cryptographic Appliances and Geoff Thorpe]
3999 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4000 is called via tools/c89.sh because arguments have to be
4001 rearranged (all '-L' options must appear before the first object
4003 [Richard Shapiro <rshapiro@abinitio.com>]
4005 *) [In 0.9.6c-engine release:]
4006 Add support for Broadcom crypto accelerator cards, backported
4008 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4010 *) [In 0.9.6c-engine release:]
4011 Add support for SureWare crypto accelerator cards from
4012 Baltimore Technologies. (Use engine 'sureware')
4013 [Baltimore Technologies and Mark Cox]
4015 *) [In 0.9.6c-engine release:]
4016 Add support for crypto accelerator cards from Accelerated
4017 Encryption Processing, www.aep.ie. (Use engine 'aep')
4018 [AEP Inc. and Mark Cox]
4020 *) Add a configuration entry for gcc on UnixWare.
4021 [Gary Benson <gbenson@redhat.com>]
4023 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4024 messages are stored in a single piece (fixed-length part and
4025 variable-length part combined) and fix various bugs found on the way.
4028 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4029 instead. BIO_gethostbyname() does not know what timeouts are
4030 appropriate, so entries would stay in cache even when they have
4032 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4034 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4035 faced with a pathologically small ClientHello fragment that does
4036 not contain client_version: Instead of aborting with an error,
4037 simply choose the highest available protocol version (i.e.,
4038 TLS 1.0 unless it is disabled). In practice, ClientHello
4039 messages are never sent like this, but this change gives us
4040 strictly correct behaviour at least for TLS.
4043 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4044 never resets s->method to s->ctx->method when called from within
4045 one of the SSL handshake functions.
4046 [Bodo Moeller; problem pointed out by Niko Baric]
4048 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4049 (sent using the client's version number) if client_version is
4050 smaller than the protocol version in use. Also change
4051 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4052 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4053 the client will at least see that alert.
4056 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4060 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4061 client receives HelloRequest while in a handshake.
4062 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4064 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4065 should end in 'break', not 'goto end' which circuments various
4066 cleanups done in state SSL_ST_OK. But session related stuff
4067 must be disabled for SSL_ST_OK in the case that we just sent a
4070 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4071 before just sending a HelloRequest.
4072 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4074 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4075 reveal whether illegal block cipher padding was found or a MAC
4076 verification error occured. (Neither SSLerr() codes nor alerts
4077 are directly visible to potential attackers, but the information
4078 may leak via logfiles.)
4080 Similar changes are not required for the SSL 2.0 implementation
4081 because the number of padding bytes is sent in clear for SSL 2.0,
4082 and the extra bytes are just ignored. However ssl/s2_pkt.c
4083 failed to verify that the purported number of padding bytes is in
4087 *) Add OpenUNIX-8 support including shared libraries
4088 (Boyd Lynn Gerber <gerberb@zenez.com>).
4091 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4092 'wristwatch attack' using huge encoding parameters (cf.
4093 James H. Manger's CRYPTO 2001 paper). Note that the
4094 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4095 encoding parameters and hence was not vulnerable.
4098 *) BN_sqr() bug fix.
4099 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4101 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4102 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4103 followed by modular reduction.
4104 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4106 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4107 equivalent based on BN_pseudo_rand() instead of BN_rand().
4110 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4111 This function was broken, as the check for a new client hello message
4112 to handle SGC did not allow these large messages.
4113 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4116 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4119 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4120 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4123 *) Rework the configuration and shared library support for Tru64 Unix.
4124 The configuration part makes use of modern compiler features and
4125 still retains old compiler behavior for those that run older versions
4126 of the OS. The shared library support part includes a variant that
4127 uses the RPATH feature, and is available through the special
4128 configuration target "alpha-cc-rpath", which will never be selected
4130 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4132 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4133 with the same message size as in ssl3_get_certificate_request().
4134 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4135 messages might inadvertently be reject as too long.
4136 [Petr Lampa <lampa@fee.vutbr.cz>]
4138 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4141 *) Modified SSL library such that the verify_callback that has been set
4142 specificly for an SSL object with SSL_set_verify() is actually being
4143 used. Before the change, a verify_callback set with this function was
4144 ignored and the verify_callback() set in the SSL_CTX at the time of
4145 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4146 to allow the necessary settings.
4149 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4150 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4151 done automatically (in contradiction to the requirements of the C
4152 standard). This made problems when used from OpenSSH.
4155 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4156 dh->length and always used
4158 BN_rand_range(priv_key, dh->p).
4160 BN_rand_range() is not necessary for Diffie-Hellman, and this
4161 specific range makes Diffie-Hellman unnecessarily inefficient if
4162 dh->length (recommended exponent length) is much smaller than the
4163 length of dh->p. We could use BN_rand_range() if the order of
4164 the subgroup was stored in the DH structure, but we only have
4169 BN_rand(priv_key, l, ...)
4171 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4177 RSA_eay_public_encrypt
4178 RSA_eay_private_decrypt
4179 RSA_eay_private_encrypt (signing)
4180 RSA_eay_public_decrypt (signature verification)
4182 (default implementations for RSA_public_encrypt,
4183 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4184 always reject numbers >= n.
4187 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4188 to synchronize access to 'locking_thread'. This is necessary on
4189 systems where access to 'locking_thread' (an 'unsigned long'
4190 variable) is not atomic.
4193 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4194 *before* setting the 'crypto_lock_rand' flag. The previous code had
4195 a race condition if 0 is a valid thread ID.
4196 [Travis Vitek <vitek@roguewave.com>]
4198 *) Add support for shared libraries under Irix.
4199 [Albert Chin-A-Young <china@thewrittenword.com>]
4201 *) Add configuration option to build on Linux on both big-endian and
4203 [Ralf Baechle <ralf@uni-koblenz.de>]
4205 *) Add the possibility to create shared libraries on HP-UX.
4208 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4210 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4211 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4212 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4213 PRNG state recovery was possible based on the output of
4214 one PRNG request appropriately sized to gain knowledge on
4215 'md' followed by enough consecutive 1-byte PRNG requests
4216 to traverse all of 'state'.
4218 1. When updating 'md_local' (the current thread's copy of 'md')
4219 during PRNG output generation, hash all of the previous
4220 'md_local' value, not just the half used for PRNG output.
4222 2. Make the number of bytes from 'state' included into the hash
4223 independent from the number of PRNG bytes requested.
4225 The first measure alone would be sufficient to avoid
4226 Markku-Juhani's attack. (Actually it had never occurred
4227 to me that the half of 'md_local' used for chaining was the
4228 half from which PRNG output bytes were taken -- I had always
4229 assumed that the secret half would be used.) The second
4230 measure makes sure that additional data from 'state' is never
4231 mixed into 'md_local' in small portions; this heuristically
4232 further strengthens the PRNG.
4235 *) Fix crypto/bn/asm/mips3.s.
4238 *) When only the key is given to "enc", the IV is undefined. Print out
4239 an error message in this case.
4242 *) Handle special case when X509_NAME is empty in X509 printing routines.
4245 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4246 positive and less than q.
4249 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4250 used: it isn't thread safe and the add_lock_callback should handle
4252 [Paul Rose <Paul.Rose@bridge.com>]
4254 *) Verify that incoming data obeys the block size in
4255 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4259 [Ulf Möller, Bodo Möller]
4261 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4262 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4263 when fixing the server behaviour for backwards-compatible 'client
4264 hello' messages. (Note that the attack is impractical against
4265 SSL 3.0 and TLS 1.0 anyway because length and version checking
4266 means that the probability of guessing a valid ciphertext is
4267 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4270 Before 0.9.5, the countermeasure (hide the error by generating a
4271 random 'decryption result') did not work properly because
4272 ERR_clear_error() was missing, meaning that SSL_get_error() would
4273 detect the supposedly ignored error.
4275 Both problems are now fixed.
4278 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4279 (previously it was 1024).
4282 *) Fix for compatibility mode trust settings: ignore trust settings
4283 unless some valid trust or reject settings are present.
4286 *) Fix for blowfish EVP: its a variable length cipher.
4289 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4290 parameters in DSA public key structures and return an error in the
4291 DSA routines if parameters are absent.
4294 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4295 in the current directory if neither $RANDFILE nor $HOME was set.
4296 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4297 caused some confusion to Windows users who haven't defined $HOME.
4298 Thus RAND_file_name() is changed again: e_os.h can define a
4299 DEFAULT_HOME, which will be used if $HOME is not set.
4300 For Windows, we use "C:"; on other platforms, we still require
4301 environment variables.
4303 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4304 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4305 having multiple threads call RAND_poll() concurrently.
4308 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4309 combination of a flag and a thread ID variable.
4310 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4311 flag), *other* threads can enter ssleay_add_bytes without obeying
4312 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4313 that they do not hold after the first thread unsets add_do_not_lock).
4316 *) Change bctest again: '-x' expressions are not available in all
4320 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4322 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4323 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4325 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4326 the default extension for executables, if any. Also, make the perl
4327 scripts that use symlink() to test if it really exists and use "cp"
4328 if it doesn't. All this made OpenSSL compilable and installable in
4332 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4333 If SEQUENCE is length is indefinite just set c->slen to the total
4334 amount of data available.
4335 [Steve Henson, reported by shige@FreeBSD.org]
4336 [This change does not apply to 0.9.7.]
4338 *) Change bctest to avoid here-documents inside command substitution
4339 (workaround for FreeBSD /bin/sh bug).
4340 For compatibility with Ultrix, avoid shell functions (introduced
4341 in the bctest version that searches along $PATH).
4344 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4345 with des_encrypt() defined on some operating systems, like Solaris
4349 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4350 On the Importance of Eliminating Errors in Cryptographic
4351 Computations, J. Cryptology 14 (2001) 2, 101-119,
4352 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4355 *) MIPS assembler BIGNUM division bug fix.
4358 *) Disabled incorrect Alpha assembler code.
4361 *) Fix PKCS#7 decode routines so they correctly update the length
4362 after reading an EOC for the EXPLICIT tag.
4364 [This change does not apply to 0.9.7.]
4366 *) Fix bug in PKCS#12 key generation routines. This was triggered
4367 if a 3DES key was generated with a 0 initial byte. Include
4368 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4369 (but broken) behaviour.
4372 *) Enhance bctest to search for a working bc along $PATH and print
4374 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4376 *) Fix memory leaks in err.c: free err_data string if necessary;
4377 don't write to the wrong index in ERR_set_error_data.
4380 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4384 *) Replace rdtsc with _emit statements for VC++ version 5.
4385 [Jeremy Cooper <jeremy@baymoo.org>]
4387 *) Make it possible to reuse SSLv2 sessions.
4390 *) In copy_email() check for >= 0 as a return value for
4391 X509_NAME_get_index_by_NID() since 0 is a valid index.
4392 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4394 *) Avoid coredump with unsupported or invalid public keys by checking if
4395 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4396 PKCS7_verify() fails with non detached data.
4399 *) Don't use getenv in library functions when run as setuid/setgid.
4400 New function OPENSSL_issetugid().
4403 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4404 due to incorrect handling of multi-threading:
4406 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4408 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4410 3. Count how many times MemCheck_off() has been called so that
4411 nested use can be treated correctly. This also avoids
4412 inband-signalling in the previous code (which relied on the
4413 assumption that thread ID 0 is impossible).
4416 *) Add "-rand" option also to s_client and s_server.
4419 *) Fix CPU detection on Irix 6.x.
4420 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4421 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4423 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4426 [This change does not apply to 0.9.7.]
4428 *) Use the cached encoding of an X509_NAME structure rather than
4429 copying it. This is apparently the reason for the libsafe "errors"
4430 but the code is actually correct.
4433 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4434 Bleichenbacher's DSA attack.
4435 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4436 to be set and top=0 forces the highest bit to be set; top=-1 is new
4437 and leaves the highest bit random.
4438 [Ulf Moeller, Bodo Moeller]
4440 *) In the NCONF_...-based implementations for CONF_... queries
4441 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4442 a temporary CONF structure with the data component set to NULL
4443 (which gives segmentation faults in lh_retrieve).
4444 Instead, use NULL for the CONF pointer in CONF_get_string and
4445 CONF_get_number (which may use environment variables) and directly
4446 return NULL from CONF_get_section.
4449 *) Fix potential buffer overrun for EBCDIC.
4452 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4453 keyUsage if basicConstraints absent for a CA.
4456 *) Make SMIME_write_PKCS7() write mail header values with a format that
4457 is more generally accepted (no spaces before the semicolon), since
4458 some programs can't parse those values properly otherwise. Also make
4459 sure BIO's that break lines after each write do not create invalid
4463 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4464 macros previously used would not encode an empty SEQUENCE OF
4465 and break the signature.
4467 [This change does not apply to 0.9.7.]
4469 *) Zero the premaster secret after deriving the master secret in
4473 *) Add some EVP_add_digest_alias registrations (as found in
4474 OpenSSL_add_all_digests()) to SSL_library_init()
4475 aka OpenSSL_add_ssl_algorithms(). This provides improved
4476 compatibility with peers using X.509 certificates
4477 with unconventional AlgorithmIdentifier OIDs.
4480 *) Fix for Irix with NO_ASM.
4481 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4483 *) ./config script fixes.
4484 [Ulf Moeller, Richard Levitte]
4486 *) Fix 'openssl passwd -1'.
4489 *) Change PKCS12_key_gen_asc() so it can cope with non null
4490 terminated strings whose length is passed in the passlen
4491 parameter, for example from PEM callbacks. This was done
4492 by adding an extra length parameter to asc2uni().
4493 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4495 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4496 call failed, free the DSA structure.
4499 *) Fix to uni2asc() to cope with zero length Unicode strings.
4500 These are present in some PKCS#12 files.
4503 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4504 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4505 when writing a 32767 byte record.
4506 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4508 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4509 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4511 (RSA objects have a reference count access to which is protected
4512 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4513 so they are meant to be shared between threads.)
4514 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4515 "Reddie, Steven" <Steven.Reddie@ca.com>]
4517 *) Fix a deadlock in CRYPTO_mem_leaks().
4520 *) Use better test patterns in bntest.
4523 *) rand_win.c fix for Borland C.
4526 *) BN_rshift bugfix for n == 0.
4529 *) Add a 'bctest' script that checks for some known 'bc' bugs
4530 so that 'make test' does not abort just because 'bc' is broken.
4533 *) Store verify_result within SSL_SESSION also for client side to
4534 avoid potential security hole. (Re-used sessions on the client side
4535 always resulted in verify_result==X509_V_OK, not using the original
4536 result of the server certificate verification.)
4539 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4540 SSL3_RT_APPLICATION_DATA, return 0.
4541 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4545 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4546 releases, have been re-implemented by renaming the previous
4547 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4548 and ssl3_read_internal, respectively, and adding 'peek' parameters
4549 to them. The new ssl[23]_{read,peek} functions are calls to
4550 ssl[23]_read_internal with the 'peek' flag set appropriately.
4551 A 'peek' parameter has also been added to ssl3_read_bytes, which
4552 does the actual work for ssl3_read_internal.
4555 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4556 the method-specific "init()" handler. Also clean up ex_data after
4557 calling the method-specific "finish()" handler. Previously, this was
4558 happening the other way round.
4561 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4562 The previous value, 12, was not always sufficient for BN_mod_exp().
4565 *) Make sure that shared libraries get the internal name engine with
4566 the full version number and not just 0. This should mark the
4567 shared libraries as not backward compatible. Of course, this should
4568 be changed again when we can guarantee backward binary compatibility.
4571 *) Fix typo in get_cert_by_subject() in by_dir.c
4572 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4574 *) Rework the system to generate shared libraries:
4576 - Make note of the expected extension for the shared libraries and
4577 if there is a need for symbolic links from for example libcrypto.so.0
4578 to libcrypto.so.0.9.7. There is extended info in Configure for
4581 - Make as few rebuilds of the shared libraries as possible.
4583 - Still avoid linking the OpenSSL programs with the shared libraries.
4585 - When installing, install the shared libraries separately from the
4589 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4591 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4592 and not in SSL_clear because the latter is also used by the
4593 accept/connect functions; previously, the settings made by
4594 SSL_set_read_ahead would be lost during the handshake.
4595 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4597 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4598 Previously, it would create entries for disableed algorithms no
4602 *) Added several new manual pages for SSL_* function.
4605 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4607 *) In ssl23_get_client_hello, generate an error message when faced
4608 with an initial SSL 3.0/TLS record that is too small to contain the
4609 first two bytes of the ClientHello message, i.e. client_version.
4610 (Note that this is a pathologic case that probably has never happened
4611 in real life.) The previous approach was to use the version number
4612 from the record header as a substitute; but our protocol choice
4613 should not depend on that one because it is not authenticated
4614 by the Finished messages.
4617 *) More robust randomness gathering functions for Windows.
4618 [Jeffrey Altman <jaltman@columbia.edu>]
4620 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4621 not set then we don't setup the error code for issuer check errors
4622 to avoid possibly overwriting other errors which the callback does
4623 handle. If an application does set the flag then we assume it knows
4624 what it is doing and can handle the new informational codes
4628 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4629 a general "ANY" type, as such it should be able to decode anything
4630 including tagged types. However it didn't check the class so it would
4631 wrongly interpret tagged types in the same way as their universal
4632 counterpart and unknown types were just rejected. Changed so that the
4633 tagged and unknown types are handled in the same way as a SEQUENCE:
4634 that is the encoding is stored intact. There is also a new type
4635 "V_ASN1_OTHER" which is used when the class is not universal, in this
4636 case we have no idea what the actual type is so we just lump them all
4640 *) On VMS, stdout may very well lead to a file that is written to
4641 in a record-oriented fashion. That means that every write() will
4642 write a separate record, which will be read separately by the
4643 programs trying to read from it. This can be very confusing.
4645 The solution is to put a BIO filter in the way that will buffer
4646 text until a linefeed is reached, and then write everything a
4647 line at a time, so every record written will be an actual line,
4648 not chunks of lines and not (usually doesn't happen, but I've
4649 seen it once) several lines in one record. BIO_f_linebuffer() is
4652 Currently, it's a VMS-only method, because that's where it has
4653 been tested well enough.
4656 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4657 it can return incorrect results.
4658 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4659 but it was in 0.9.6-beta[12].)
4662 *) Disable the check for content being present when verifying detached
4663 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4664 include zero length content when signing messages.
4667 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4668 BIO_ctrl (for BIO pairs).
4671 *) Add DSO method for VMS.
4674 *) Bug fix: Montgomery multiplication could produce results with the
4678 *) Add RPM specification openssl.spec and modify it to build three
4679 packages. The default package contains applications, application
4680 documentation and run-time libraries. The devel package contains
4681 include files, static libraries and function documentation. The
4682 doc package contains the contents of the doc directory. The original
4683 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4686 *) Add a large number of documentation files for many SSL routines.
4687 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4689 *) Add a configuration entry for Sony News 4.
4690 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4692 *) Don't set the two most significant bits to one when generating a
4693 random number < q in the DSA library.
4696 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4697 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4698 the underlying transport is blocking) if a handshake took place.
4699 (The default behaviour is needed by applications such as s_client
4700 and s_server that use select() to determine when to use SSL_read;
4701 but for applications that know in advance when to expect data, it
4702 just makes things more complicated.)
4705 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4709 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4710 work better on such systems.
4711 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4713 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4714 Update PKCS12_parse() so it copies the friendlyName and the
4715 keyid to the certificates aux info.
4718 *) Fix bug in PKCS7_verify() which caused an infinite loop
4719 if there was more than one signature.
4720 [Sven Uszpelkat <su@celocom.de>]
4722 *) Major change in util/mkdef.pl to include extra information
4723 about each symbol, as well as presentig variables as well
4724 as functions. This change means that there's n more need
4725 to rebuild the .num files when some algorithms are excluded.
4728 *) Allow the verify time to be set by an application,
4729 rather than always using the current time.
4732 *) Phase 2 verify code reorganisation. The certificate
4733 verify code now looks up an issuer certificate by a
4734 number of criteria: subject name, authority key id
4735 and key usage. It also verifies self signed certificates
4736 by the same criteria. The main comparison function is
4737 X509_check_issued() which performs these checks.
4739 Lot of changes were necessary in order to support this
4740 without completely rewriting the lookup code.
4742 Authority and subject key identifier are now cached.
4744 The LHASH 'certs' is X509_STORE has now been replaced
4745 by a STACK_OF(X509_OBJECT). This is mainly because an
4746 LHASH can't store or retrieve multiple objects with
4747 the same hash value.
4749 As a result various functions (which were all internal
4750 use only) have changed to handle the new X509_STORE
4751 structure. This will break anything that messed round
4752 with X509_STORE internally.
4754 The functions X509_STORE_add_cert() now checks for an
4755 exact match, rather than just subject name.
4757 The X509_STORE API doesn't directly support the retrieval
4758 of multiple certificates matching a given criteria, however
4759 this can be worked round by performing a lookup first
4760 (which will fill the cache with candidate certificates)
4761 and then examining the cache for matches. This is probably
4762 the best we can do without throwing out X509_LOOKUP
4763 entirely (maybe later...).
4765 The X509_VERIFY_CTX structure has been enhanced considerably.
4767 All certificate lookup operations now go via a get_issuer()
4768 callback. Although this currently uses an X509_STORE it
4769 can be replaced by custom lookups. This is a simple way
4770 to bypass the X509_STORE hackery necessary to make this
4771 work and makes it possible to use more efficient techniques
4772 in future. A very simple version which uses a simple
4773 STACK for its trusted certificate store is also provided
4774 using X509_STORE_CTX_trusted_stack().
4776 The verify_cb() and verify() callbacks now have equivalents
4777 in the X509_STORE_CTX structure.
4779 X509_STORE_CTX also has a 'flags' field which can be used
4780 to customise the verify behaviour.
4783 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4784 excludes S/MIME capabilities.
4787 *) When a certificate request is read in keep a copy of the
4788 original encoding of the signed data and use it when outputing
4789 again. Signatures then use the original encoding rather than
4790 a decoded, encoded version which may cause problems if the
4791 request is improperly encoded.
4794 *) For consistency with other BIO_puts implementations, call
4795 buffer_write(b, ...) directly in buffer_puts instead of calling
4798 In BIO_puts, increment b->num_write as in BIO_write.
4799 [Peter.Sylvester@EdelWeb.fr]
4801 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4802 BN_zero, we may not return a BIGNUM with an array consisting of
4806 *) Avoid calling abort() from within the library when problems are
4807 detected, except if preprocessor symbols have been defined
4808 (such as REF_CHECK, BN_DEBUG etc.).
4811 *) New openssl application 'rsautl'. This utility can be
4812 used for low level RSA operations. DER public key
4813 BIO/fp routines also added.
4816 *) New Configure entry and patches for compiling on QNX 4.
4817 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4819 *) A demo state-machine implementation was sponsored by
4820 Nuron (http://www.nuron.com/) and is now available in
4821 demos/state_machine.
4824 *) New options added to the 'dgst' utility for signature
4825 generation and verification.
4828 *) Unrecognized PKCS#7 content types are now handled via a
4829 catch all ASN1_TYPE structure. This allows unsupported
4830 types to be stored as a "blob" and an application can
4831 encode and decode it manually.
4834 *) Fix various signed/unsigned issues to make a_strex.c
4836 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4838 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4839 length if passed a buffer. ASN1_INTEGER_to_BN failed
4840 if passed a NULL BN and its argument was negative.
4841 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4843 *) Modification to PKCS#7 encoding routines to output definite
4844 length encoding. Since currently the whole structures are in
4845 memory there's not real point in using indefinite length
4846 constructed encoding. However if OpenSSL is compiled with
4847 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4850 *) Added BIO_vprintf() and BIO_vsnprintf().
4853 *) Added more prefixes to parse for in the the strings written
4854 through a logging bio, to cover all the levels that are available
4855 through syslog. The prefixes are now:
4857 PANIC, EMERG, EMR => LOG_EMERG
4858 ALERT, ALR => LOG_ALERT
4859 CRIT, CRI => LOG_CRIT
4860 ERROR, ERR => LOG_ERR
4861 WARNING, WARN, WAR => LOG_WARNING
4862 NOTICE, NOTE, NOT => LOG_NOTICE
4863 INFO, INF => LOG_INFO
4864 DEBUG, DBG => LOG_DEBUG
4866 and as before, if none of those prefixes are present at the
4867 beginning of the string, LOG_ERR is chosen.
4869 On Win32, the LOG_* levels are mapped according to this:
4871 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4872 LOG_WARNING => EVENTLOG_WARNING_TYPE
4873 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4877 *) Made it possible to reconfigure with just the configuration
4878 argument "reconf" or "reconfigure". The command line arguments
4879 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4880 and are retrieved from there when reconfiguring.
4884 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4886 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4889 *) The obj_dat.pl script was messing up the sorting of object
4890 names. The reason was that it compared the quoted version
4891 of strings as a result "OCSP" > "OCSP Signing" because
4892 " > SPACE. Changed script to store unquoted versions of
4893 names and add quotes on output. It was also omitting some
4894 names from the lookup table if they were given a default
4895 value (that is if SN is missing it is given the same
4896 value as LN and vice versa), these are now added on the
4897 grounds that if an object has a name we should be able to
4898 look it up. Finally added warning output when duplicate
4899 short or long names are found.
4902 *) Changes needed for Tandem NSK.
4903 [Scott Uroff <scott@xypro.com>]
4905 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4906 RSA_padding_check_SSLv23(), special padding was never detected
4907 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4908 version rollback attacks was not effective.
4910 In s23_clnt.c, don't use special rollback-attack detection padding
4911 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4912 client; similarly, in s23_srvr.c, don't do the rollback check if
4913 SSL 2.0 is the only protocol enabled in the server.
4916 *) Make it possible to get hexdumps of unprintable data with 'openssl
4917 asn1parse'. By implication, the functions ASN1_parse_dump() and
4918 BIO_dump_indent() are added.
4921 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4922 these print out strings and name structures based on various
4923 flags including RFC2253 support and proper handling of
4924 multibyte characters. Added options to the 'x509' utility
4925 to allow the various flags to be set.
4928 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4929 Also change the functions X509_cmp_current_time() and
4930 X509_gmtime_adj() work with an ASN1_TIME structure,
4931 this will enable certificates using GeneralizedTime in validity
4932 dates to be checked.
4935 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4936 negative public key encodings) on by default,
4937 NO_NEG_PUBKEY_BUG can be set to disable it.
4940 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4941 content octets. An i2c_ASN1_OBJECT is unnecessary because
4942 the encoding can be trivially obtained from the structure.
4945 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4946 not read locks (CRYPTO_r_[un]lock).
4949 *) A first attempt at creating official support for shared
4950 libraries through configuration. I've kept it so the
4951 default is static libraries only, and the OpenSSL programs
4952 are always statically linked for now, but there are
4953 preparations for dynamic linking in place.
4954 This has been tested on Linux and Tru64.
4957 *) Randomness polling function for Win9x, as described in:
4958 Peter Gutmann, Software Generation of Practically Strong
4962 *) Fix so PRNG is seeded in req if using an already existing
4966 *) New options to smime application. -inform and -outform
4967 allow alternative formats for the S/MIME message including
4968 PEM and DER. The -content option allows the content to be
4969 specified separately. This should allow things like Netscape
4970 form signing output easier to verify.
4973 *) Fix the ASN1 encoding of tags using the 'long form'.
4976 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4977 STRING types. These convert content octets to and from the
4978 underlying type. The actual tag and length octets are
4979 already assumed to have been read in and checked. These
4980 are needed because all other string types have virtually
4981 identical handling apart from the tag. By having versions
4982 of the ASN1 functions that just operate on content octets
4983 IMPLICIT tagging can be handled properly. It also allows
4984 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4985 and ASN1_INTEGER are identical apart from the tag.
4988 *) Change the handling of OID objects as follows:
4990 - New object identifiers are inserted in objects.txt, following
4991 the syntax given in objects.README.
4992 - objects.pl is used to process obj_mac.num and create a new
4994 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4997 This is currently kind of a hack, and the perl code in objects.pl
4998 isn't very elegant, but it works as I intended. The simplest way
4999 to check that it worked correctly is to look in obj_dat.h and
5000 check the array nid_objs and make sure the objects haven't moved
5001 around (this is important!). Additions are OK, as well as
5002 consistent name changes.
5005 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5008 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5009 The given file adds to whatever has already been seeded into the
5010 random pool through the RANDFILE configuration file option or
5011 environment variable, or the default random state file.
5014 *) mkstack.pl now sorts each macro group into lexical order.
5015 Previously the output order depended on the order the files
5016 appeared in the directory, resulting in needless rewriting
5020 *) Patches to make OpenSSL compile under Win32 again. Mostly
5021 work arounds for the VC++ problem that it treats func() as
5022 func(void). Also stripped out the parts of mkdef.pl that
5023 added extra typesafe functions: these no longer exist.
5026 *) Reorganisation of the stack code. The macros are now all
5027 collected in safestack.h . Each macro is defined in terms of
5028 a "stack macro" of the form SKM_<name>(type, a, b). The
5029 DEBUG_SAFESTACK is now handled in terms of function casts,
5030 this has the advantage of retaining type safety without the
5031 use of additional functions. If DEBUG_SAFESTACK is not defined
5032 then the non typesafe macros are used instead. Also modified the
5033 mkstack.pl script to handle the new form. Needs testing to see
5034 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5035 the default if no major problems. Similar behaviour for ASN1_SET_OF
5036 and PKCS12_STACK_OF.
5039 *) When some versions of IIS use the 'NET' form of private key the
5040 key derivation algorithm is different. Normally MD5(password) is
5041 used as a 128 bit RC4 key. In the modified case
5042 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5043 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5044 as the old Netscape_RSA functions except they have an additional
5045 'sgckey' parameter which uses the modified algorithm. Also added
5046 an -sgckey command line option to the rsa utility. Thanks to
5047 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5048 algorithm to openssl-dev.
5051 *) The evp_local.h macros were using 'c.##kname' which resulted in
5052 invalid expansion on some systems (SCO 5.0.5 for example).
5053 Corrected to 'c.kname'.
5054 [Phillip Porch <root@theporch.com>]
5056 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5057 a STACK of email addresses from a certificate or request, these look
5058 in the subject name and the subject alternative name extensions and
5059 omit any duplicate addresses.
5062 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5063 This makes DSA verification about 2 % faster.
5066 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5067 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5068 plus overhead for 1024 bit moduli).
5069 This makes exponentiations about 0.5 % faster for 1024 bit
5070 exponents (as measured by "openssl speed rsa2048").
5073 *) Rename memory handling macros to avoid conflicts with other
5075 Malloc => OPENSSL_malloc
5076 Malloc_locked => OPENSSL_malloc_locked
5077 Realloc => OPENSSL_realloc
5078 Free => OPENSSL_free
5081 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5082 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5085 *) CygWin32 support.
5086 [John Jarvie <jjarvie@newsguy.com>]
5088 *) The type-safe stack code has been rejigged. It is now only compiled
5089 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5090 by default all type-specific stack functions are "#define"d back to
5091 standard stack functions. This results in more streamlined output
5092 but retains the type-safety checking possibilities of the original
5096 *) The STACK code has been cleaned up, and certain type declarations
5097 that didn't make a lot of sense have been brought in line. This has
5098 also involved a cleanup of sorts in safestack.h to more correctly
5099 map type-safe stack functions onto their plain stack counterparts.
5100 This work has also resulted in a variety of "const"ifications of
5101 lots of the code, especially "_cmp" operations which should normally
5102 be prototyped with "const" parameters anyway.
5105 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5106 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5107 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5108 where all of 'md' is used each time the PRNG is used, but 'state'
5109 is used only indexed by a cyclic counter. As entropy may not be
5110 well distributed from the beginning, 'md' is important as a
5111 chaining variable. However, the output function chains only half
5112 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5113 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5114 in all of 'state' being rewritten, with the new values depending
5115 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5118 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5119 the handshake is continued after ssl_verify_cert_chain();
5120 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5121 can lead to 'unexplainable' connection aborts later.
5122 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5124 *) Major EVP API cipher revision.
5125 Add hooks for extra EVP features. This allows various cipher
5126 parameters to be set in the EVP interface. Support added for variable
5127 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5128 setting of RC2 and RC5 parameters.
5130 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5133 Remove lots of duplicated code from the EVP library. For example *every*
5134 cipher init() function handles the 'iv' in the same way according to the
5135 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5136 for CFB and OFB modes they zero ctx->num.
5138 New functionality allows removal of S/MIME code RC2 hack.
5140 Most of the routines have the same form and so can be declared in terms
5143 By shifting this to the top level EVP_CipherInit() it can be removed from
5144 all individual ciphers. If the cipher wants to handle IVs or keys
5145 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5148 Change lots of functions like EVP_EncryptUpdate() to now return a
5149 value: although software versions of the algorithms cannot fail
5150 any installed hardware versions can.
5153 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5154 this option is set, tolerate broken clients that send the negotiated
5155 protocol version number instead of the requested protocol version
5159 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5160 i.e. non-zero for export ciphersuites, zero otherwise.
5161 Previous versions had this flag inverted, inconsistent with
5162 rsa_tmp_cb (..._TMP_RSA_CB).
5163 [Bodo Moeller; problem reported by Amit Chopra]
5165 *) Add missing DSA library text string. Work around for some IIS
5166 key files with invalid SEQUENCE encoding.
5169 *) Add a document (doc/standards.txt) that list all kinds of standards
5170 and so on that are implemented in OpenSSL.
5173 *) Enhance c_rehash script. Old version would mishandle certificates
5174 with the same subject name hash and wouldn't handle CRLs at all.
5175 Added -fingerprint option to crl utility, to support new c_rehash
5179 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5182 *) Fix for SSL server purpose checking. Server checking was
5183 rejecting certificates which had extended key usage present
5184 but no ssl client purpose.
5185 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5187 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5188 is a little unclear about how a blank password is handled.
5189 Since the password in encoded as a BMPString with terminating
5190 double NULL a zero length password would end up as just the
5191 double NULL. However no password at all is different and is
5192 handled differently in the PKCS#12 key generation code. NS
5193 treats a blank password as zero length. MSIE treats it as no
5194 password on export: but it will try both on import. We now do
5195 the same: PKCS12_parse() tries zero length and no password if
5196 the password is set to "" or NULL (NULL is now a valid password:
5197 it wasn't before) as does the pkcs12 application.
5200 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5201 perror when PEM_read_bio_X509_REQ fails, the error message must
5202 be obtained from the error queue.
5205 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5206 it in ERR_remove_state if appropriate, and change ERR_get_state
5207 accordingly to avoid race conditions (this is necessary because
5208 thread_hash is no longer constant once set).
5211 *) Bugfix for linux-elf makefile.one.
5214 *) RSA_get_default_method() will now cause a default
5215 RSA_METHOD to be chosen if one doesn't exist already.
5216 Previously this was only set during a call to RSA_new()
5217 or RSA_new_method(NULL) meaning it was possible for
5218 RSA_get_default_method() to return NULL.
5221 *) Added native name translation to the existing DSO code
5222 that will convert (if the flag to do so is set) filenames
5223 that are sufficiently small and have no path information
5224 into a canonical native form. Eg. "blah" converted to
5225 "libblah.so" or "blah.dll" etc.
5228 *) New function ERR_error_string_n(e, buf, len) which is like
5229 ERR_error_string(e, buf), but writes at most 'len' bytes
5230 including the 0 terminator. For ERR_error_string_n, 'buf'
5232 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5234 *) CONF library reworked to become more general. A new CONF
5235 configuration file reader "class" is implemented as well as a
5236 new functions (NCONF_*, for "New CONF") to handle it. The now
5237 old CONF_* functions are still there, but are reimplemented to
5238 work in terms of the new functions. Also, a set of functions
5239 to handle the internal storage of the configuration data is
5240 provided to make it easier to write new configuration file
5241 reader "classes" (I can definitely see something reading a
5242 configuration file in XML format, for example), called _CONF_*,
5243 or "the configuration storage API"...
5245 The new configuration file reading functions are:
5247 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5248 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5250 NCONF_default, NCONF_WIN32
5252 NCONF_dump_fp, NCONF_dump_bio
5254 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5255 NCONF_new creates a new CONF object. This works in the same way
5256 as other interfaces in OpenSSL, like the BIO interface.
5257 NCONF_dump_* dump the internal storage of the configuration file,
5258 which is useful for debugging. All other functions take the same
5259 arguments as the old CONF_* functions wth the exception of the
5260 first that must be a `CONF *' instead of a `LHASH *'.
5262 To make it easer to use the new classes with the old CONF_* functions,
5263 the function CONF_set_default_method is provided.
5266 *) Add '-tls1' option to 'openssl ciphers', which was already
5267 mentioned in the documentation but had not been implemented.
5268 (This option is not yet really useful because even the additional
5269 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5272 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5273 OpenSSL-based applications) load shared libraries and bind to
5274 them in a portable way.
5275 [Geoff Thorpe, with contributions from Richard Levitte]
5277 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5279 *) Make sure _lrotl and _lrotr are only used with MSVC.
5281 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5282 (the default implementation of RAND_status).
5284 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5285 to '-clrext' (= clear extensions), as intended and documented.
5286 [Bodo Moeller; inconsistency pointed out by Michael Attili
5289 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5290 was larger than the MD block size.
5291 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5293 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5294 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5295 using the passed key: if the passed key was a private key the result
5296 of X509_print(), for example, would be to print out all the private key
5300 *) des_quad_cksum() byte order bug fix.
5301 [Ulf Möller, using the problem description in krb4-0.9.7, where
5302 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5304 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5306 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5308 *) For easily testing in shell scripts whether some command
5309 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5310 returns with exit code 0 iff no command of the given name is available.
5311 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5312 the output goes to stdout and nothing is printed to stderr.
5313 Additional arguments are always ignored.
5315 Since for each cipher there is a command of the same name,
5316 the 'no-cipher' compilation switches can be tested this way.
5318 ('openssl no-XXX' is not able to detect pseudo-commands such
5319 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5322 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5325 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5326 is set; it will be thrown away anyway because each handshake creates
5328 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5329 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5330 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5331 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5334 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5335 'Q' and 'R' lose their special meanings (quit/renegotiate).
5336 This is part of what -quiet does; unlike -quiet, -ign_eof
5337 does not suppress any output.
5340 *) Add compatibility options to the purpose and trust code. The
5341 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5342 accepts a certificate or CA, this was the previous behaviour,
5343 with all the associated security issues.
5345 X509_TRUST_COMPAT is the old trust behaviour: only and
5346 automatically trust self signed roots in certificate store. A
5347 new trust setting X509_TRUST_DEFAULT is used to specify that
5348 a purpose has no associated trust setting and it should instead
5349 use the value in the default purpose.
5352 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5353 and fix a memory leak.
5356 *) In util/mkerr.pl (which implements 'make errors'), preserve
5357 reason strings from the previous version of the .c file, as
5358 the default to have only downcase letters (and digits) in
5359 automatically generated reasons codes is not always appropriate.
5362 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5363 using strerror. Previously, ERR_reason_error_string() returned
5364 library names as reason strings for SYSerr; but SYSerr is a special
5365 case where small numbers are errno values, not library numbers.
5368 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5369 converts DSA parameters into DH parameters. (When creating parameters,
5370 DSA_generate_parameters is used.)
5373 *) Include 'length' (recommended exponent length) in C code generated
5374 by 'openssl dhparam -C'.
5377 *) The second argument to set_label in perlasm was already being used
5378 so couldn't be used as a "file scope" flag. Moved to third argument
5382 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5383 instead of RAND_bytes for encryption IVs and salts.
5386 *) Include RAND_status() into RAND_METHOD instead of implementing
5387 it only for md_rand.c Otherwise replacing the PRNG by calling
5388 RAND_set_rand_method would be impossible.
5391 *) Don't let DSA_generate_key() enter an infinite loop if the random
5392 number generation fails.
5395 *) New 'rand' application for creating pseudo-random output.
5398 *) Added configuration support for Linux/IA64
5399 [Rolf Haberrecker <rolf@suse.de>]
5401 *) Assembler module support for Mingw32.
5404 *) Shared library support for HPUX (in shlib/).
5405 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5407 *) Shared library support for Solaris gcc.
5408 [Lutz Behnke <behnke@trustcenter.de>]
5410 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5412 *) PKCS7_encrypt() was adding text MIME headers twice because they
5413 were added manually and by SMIME_crlf_copy().
5416 *) In bntest.c don't call BN_rand with zero bits argument.
5417 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5419 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5420 case was implemented. This caused BN_div_recp() to fail occasionally.
5423 *) Add an optional second argument to the set_label() in the perl
5424 assembly language builder. If this argument exists and is set
5425 to 1 it signals that the assembler should use a symbol whose
5426 scope is the entire file, not just the current function. This
5427 is needed with MASM which uses the format label:: for this scope.
5428 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5430 *) Change the ASN1 types so they are typedefs by default. Before
5431 almost all types were #define'd to ASN1_STRING which was causing
5432 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5436 *) Change names of new functions to the new get1/get0 naming
5437 convention: After 'get1', the caller owns a reference count
5438 and has to call ..._free; 'get0' returns a pointer to some
5439 data structure without incrementing reference counters.
5440 (Some of the existing 'get' functions increment a reference
5441 counter, some don't.)
5442 Similarly, 'set1' and 'add1' functions increase reference
5443 counters or duplicate objects.
5446 *) Allow for the possibility of temp RSA key generation failure:
5447 the code used to assume it always worked and crashed on failure.
5450 *) Fix potential buffer overrun problem in BIO_printf().
5451 [Ulf Möller, using public domain code by Patrick Powell; problem
5452 pointed out by David Sacerdote <das33@cornell.edu>]
5454 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5455 RAND_egd() and RAND_status(). In the command line application,
5456 the EGD socket can be specified like a seed file using RANDFILE
5460 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5461 Some CAs (e.g. Verisign) distribute certificates in this form.
5464 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5465 list to exclude them. This means that no special compilation option
5466 is needed to use anonymous DH: it just needs to be included in the
5470 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5471 EVP_MD_type. The old functionality is available in a new macro called
5472 EVP_MD_md(). Change code that uses it and update docs.
5475 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5476 where the 'void *' argument is replaced by a function pointer argument.
5477 Previously 'void *' was abused to point to functions, which works on
5478 many platforms, but is not correct. As these functions are usually
5479 called by macros defined in OpenSSL header files, most source code
5480 should work without changes.
5483 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5484 sections with information on -D... compiler switches used for
5485 compiling the library so that applications can see them. To enable
5486 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5487 must be defined. E.g.,
5488 #define OPENSSL_ALGORITHM_DEFINES
5489 #include <openssl/opensslconf.h>
5490 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5491 [Richard Levitte, Ulf and Bodo Möller]
5493 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5497 *) Change the 'other' type in certificate aux info to a STACK_OF
5498 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5499 the required ASN1 format: arbitrary types determined by an OID.
5502 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5503 argument to 'req'. This is not because the function is newer or
5504 better than others it just uses the work 'NEW' in the certificate
5505 request header lines. Some software needs this.
5508 *) Reorganise password command line arguments: now passwords can be
5509 obtained from various sources. Delete the PEM_cb function and make
5510 it the default behaviour: i.e. if the callback is NULL and the
5511 usrdata argument is not NULL interpret it as a null terminated pass
5512 phrase. If usrdata and the callback are NULL then the pass phrase
5513 is prompted for as usual.
5516 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5517 the support is automatically enabled. The resulting binaries will
5518 autodetect the card and use it if present.
5519 [Ben Laurie and Compaq Inc.]
5521 *) Work around for Netscape hang bug. This sends certificate request
5522 and server done in one record. Since this is perfectly legal in the
5523 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5524 the bugs/SSLv3 entry for more info.
5527 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5530 *) Add -rand argument to smime and pkcs12 applications and read/write
5534 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5537 *) Add command line password options to the remaining applications.
5540 *) Bug fix for BN_div_recp() for numerators with an even number of
5544 *) More tests in bntest.c, and changed test_bn output.
5547 *) ./config recognizes MacOS X now.
5550 *) Bug fix for BN_div() when the first words of num and divsor are
5551 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5554 *) Add support for various broken PKCS#8 formats, and command line
5555 options to produce them.
5558 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5559 get temporary BIGNUMs from a BN_CTX.
5562 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5566 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5567 include a #define from the old name to the new. The original intent
5568 was that statically linked binaries could for example just call
5569 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5570 link with digests. This never worked becayse SSLeay_add_all_digests()
5571 and SSLeay_add_all_ciphers() were in the same source file so calling
5572 one would link with the other. They are now in separate source files.
5575 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5578 *) Use a less unusual form of the Miller-Rabin primality test (it used
5579 a binary algorithm for exponentiation integrated into the Miller-Rabin
5580 loop, our standard modexp algorithms are faster).
5583 *) Support for the EBCDIC character set completed.
5584 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5586 *) Source code cleanups: use const where appropriate, eliminate casts,
5587 use void * instead of char * in lhash.
5590 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5591 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5592 this the server could overwrite ephemeral keys that the client
5596 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5597 using 50 iterations of the Rabin-Miller test.
5599 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5600 iterations of the Rabin-Miller test as required by the appendix
5601 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5602 As BN_is_prime_fasttest includes trial division, DSA parameter
5603 generation becomes much faster.
5605 This implies a change for the callback functions in DSA_is_prime
5606 and DSA_generate_parameters: The callback function is called once
5607 for each positive witness in the Rabin-Miller test, not just
5608 occasionally in the inner loop; and the parameters to the
5609 callback function now provide an iteration count for the outer
5610 loop rather than for the current invocation of the inner loop.
5611 DSA_generate_parameters additionally can call the callback
5612 function with an 'iteration count' of -1, meaning that a
5613 candidate has passed the trial division test (when q is generated
5614 from an application-provided seed, trial division is skipped).
5617 *) New function BN_is_prime_fasttest that optionally does trial
5618 division before starting the Rabin-Miller test and has
5619 an additional BN_CTX * argument (whereas BN_is_prime always
5620 has to allocate at least one BN_CTX).
5621 'callback(1, -1, cb_arg)' is called when a number has passed the
5622 trial division stage.
5625 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5629 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5632 *) New function BN_pseudo_rand().
5635 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5636 bignum version of BN_from_montgomery() with the working code from
5637 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5641 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5642 made it impossible to use the same SSL_SESSION data structure in
5643 SSL2 clients in multiple threads.
5646 *) The return value of RAND_load_file() no longer counts bytes obtained
5647 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5648 to seed the PRNG (previously an explicit byte count was required).
5649 [Ulf Möller, Bodo Möller]
5651 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5652 used (char *) instead of (void *) and had casts all over the place.
5655 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5658 *) Retain source code compatibility for BN_prime_checks macro:
5659 BN_is_prime(..., BN_prime_checks, ...) now uses
5660 BN_prime_checks_for_size to determine the appropriate number of
5661 Rabin-Miller iterations.
5664 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5665 DH_CHECK_P_NOT_SAFE_PRIME.
5666 (Check if this is true? OpenPGP calls them "strong".)
5669 *) Merge the functionality of "dh" and "gendh" programs into a new program
5670 "dhparam". The old programs are retained for now but will handle DH keys
5671 (instead of parameters) in future.
5674 *) Make the ciphers, s_server and s_client programs check the return values
5675 when a new cipher list is set.
5678 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5679 ciphers. Before when the 56bit ciphers were enabled the sorting was
5682 The syntax for the cipher sorting has been extended to support sorting by
5683 cipher-strength (using the strength_bits hard coded in the tables).
5684 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5686 Fix a bug in the cipher-command parser: when supplying a cipher command
5687 string with an "undefined" symbol (neither command nor alphanumeric
5688 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5689 an error is flagged.
5691 Due to the strength-sorting extension, the code of the
5692 ssl_create_cipher_list() function was completely rearranged. I hope that
5693 the readability was also increased :-)
5694 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5696 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5697 for the first serial number and places 2 in the serial number file. This
5698 avoids problems when the root CA is created with serial number zero and
5699 the first user certificate has the same issuer name and serial number
5703 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5704 the new code. Add documentation for this stuff.
5707 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5708 X509_*() to X509at_*() on the grounds that they don't handle X509
5709 structures and behave in an analagous way to the X509v3 functions:
5710 they shouldn't be called directly but wrapper functions should be used
5713 So we also now have some wrapper functions that call the X509at functions
5714 when passed certificate requests. (TO DO: similar things can be done with
5715 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5716 things. Some of these need some d2i or i2d and print functionality
5717 because they handle more complex structures.)
5720 *) Add missing #ifndefs that caused missing symbols when building libssl
5721 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5722 NO_RSA in ssl/s2*.c.
5723 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5725 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5726 has a return value which indicates the quality of the random data
5727 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5728 error queue. New function RAND_pseudo_bytes() generates output that is
5729 guaranteed to be unique but not unpredictable. RAND_add is like
5730 RAND_seed, but takes an extra argument for an entropy estimate
5731 (RAND_seed always assumes full entropy).
5734 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5735 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5736 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5737 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5738 false-positive rate of at most 2^-80 for random input.
5741 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5744 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5745 in the 0.9.5 release), this returns the chain
5746 from an X509_CTX structure with a dup of the stack and all
5747 the X509 reference counts upped: so the stack will exist
5748 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5751 Also make SSL_SESSION_print() print out the verify return
5755 *) Add manpage for the pkcs12 command. Also change the default
5756 behaviour so MAC iteration counts are used unless the new
5757 -nomaciter option is used. This improves file security and
5758 only older versions of MSIE (4.0 for example) need it.
5761 *) Honor the no-xxx Configure options when creating .DEF files.
5764 *) Add PKCS#10 attributes to field table: challengePassword,
5765 unstructuredName and unstructuredAddress. These are taken from
5766 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5767 international characters are used.
5769 More changes to X509_ATTRIBUTE code: allow the setting of types
5770 based on strings. Remove the 'loc' parameter when adding
5771 attributes because these will be a SET OF encoding which is sorted
5775 *) Initial changes to the 'req' utility to allow request generation
5776 automation. This will allow an application to just generate a template
5777 file containing all the field values and have req construct the
5780 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5781 used all over the place including certificate requests and PKCS#7
5782 structures. They are currently handled manually where necessary with
5783 some primitive wrappers for PKCS#7. The new functions behave in a
5784 manner analogous to the X509 extension functions: they allow
5785 attributes to be looked up by NID and added.
5787 Later something similar to the X509V3 code would be desirable to
5788 automatically handle the encoding, decoding and printing of the
5789 more complex types. The string types like challengePassword can
5790 be handled by the string table functions.
5792 Also modified the multi byte string table handling. Now there is
5793 a 'global mask' which masks out certain types. The table itself
5794 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5795 is useful when for example there is only one permissible type
5796 (as in countryName) and using the mask might result in no valid
5800 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5801 SSL_get_peer_finished to allow applications to obtain the latest
5802 Finished messages sent to the peer or expected from the peer,
5803 respectively. (SSL_get_peer_finished is usually the Finished message
5804 actually received from the peer, otherwise the protocol will be aborted.)
5806 As the Finished message are message digests of the complete handshake
5807 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5808 be used for external authentication procedures when the authentication
5809 provided by SSL/TLS is not desired or is not enough.
5812 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5813 the host supports BWX extension and if Compaq C is present on the
5814 $PATH. Just exploiting of the BWX extension results in 20-30%
5815 performance kick for some algorithms, e.g. DES and RC4 to mention
5816 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5820 *) Add support for MS "fast SGC". This is arguably a violation of the
5821 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5822 weak crypto and after checking the certificate is SGC a second one
5823 with strong crypto. MS SGC stops the first handshake after receiving
5824 the server certificate message and sends a second client hello. Since
5825 a server will typically do all the time consuming operations before
5826 expecting any further messages from the client (server key exchange
5827 is the most expensive) there is little difference between the two.
5829 To get OpenSSL to support MS SGC we have to permit a second client
5830 hello message after we have sent server done. In addition we have to
5831 reset the MAC if we do get this second client hello.
5834 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5835 if a DER encoded private key is RSA or DSA traditional format. Changed
5836 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5837 format DER encoded private key. Newer code should use PKCS#8 format which
5838 has the key type encoded in the ASN1 structure. Added DER private key
5839 support to pkcs8 application.
5842 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5843 ciphersuites has been selected (as required by the SSL 3/TLS 1
5844 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5845 is set, we interpret this as a request to violate the specification
5846 (the worst that can happen is a handshake failure, and 'correct'
5847 behaviour would result in a handshake failure anyway).
5850 *) In SSL_CTX_add_session, take into account that there might be multiple
5851 SSL_SESSION structures with the same session ID (e.g. when two threads
5852 concurrently obtain them from an external cache).
5853 The internal cache can handle only one SSL_SESSION with a given ID,
5854 so if there's a conflict, we now throw out the old one to achieve
5858 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5859 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5860 some routines that use cipher OIDs: some ciphers do not have OIDs
5861 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5865 *) Simplify the trust setting structure and code. Now we just have
5866 two sequences of OIDs for trusted and rejected settings. These will
5867 typically have values the same as the extended key usage extension
5868 and any application specific purposes.
5870 The trust checking code now has a default behaviour: it will just
5871 check for an object with the same NID as the passed id. Functions can
5872 be provided to override either the default behaviour or the behaviour
5873 for a given id. SSL client, server and email already have functions
5874 in place for compatibility: they check the NID and also return "trusted"
5875 if the certificate is self signed.
5878 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5879 traditional format into an EVP_PKEY structure.
5882 *) Add a password callback function PEM_cb() which either prompts for
5883 a password if usr_data is NULL or otherwise assumes it is a null
5884 terminated password. Allow passwords to be passed on command line
5885 environment or config files in a few more utilities.
5888 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5889 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5890 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5891 Update documentation.
5894 *) Support for ASN1 "NULL" type. This could be handled before by using
5895 ASN1_TYPE but there wasn't any function that would try to read a NULL
5896 and produce an error if it couldn't. For compatibility we also have
5897 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5898 don't allocate anything because they don't need to.
5901 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5903 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5905 *) Rebuild of the memory allocation routines used by OpenSSL code and
5906 possibly others as well. The purpose is to make an interface that
5907 provide hooks so anyone can build a separate set of allocation and
5908 deallocation routines to be used by OpenSSL, for example memory
5909 pool implementations, or something else, which was previously hard
5910 since Malloc(), Realloc() and Free() were defined as macros having
5911 the values malloc, realloc and free, respectively (except for Win32
5912 compilations). The same is provided for memory debugging code.
5913 OpenSSL already comes with functionality to find memory leaks, but
5914 this gives people a chance to debug other memory problems.
5916 With these changes, a new set of functions and macros have appeared:
5918 CRYPTO_set_mem_debug_functions() [F]
5919 CRYPTO_get_mem_debug_functions() [F]
5920 CRYPTO_dbg_set_options() [F]
5921 CRYPTO_dbg_get_options() [F]
5922 CRYPTO_malloc_debug_init() [M]
5924 The memory debug functions are NULL by default, unless the library
5925 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5926 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5927 gives the standard debugging functions that come with OpenSSL) or
5928 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5929 provided by the library user) must be used. When the standard
5930 debugging functions are used, CRYPTO_dbg_set_options can be used to
5931 request additional information:
5932 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5933 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5935 Also, things like CRYPTO_set_mem_functions will always give the
5936 expected result (the new set of functions is used for allocation
5937 and deallocation) at all times, regardless of platform and compiler
5940 To finish it up, some functions that were never use in any other
5941 way than through macros have a new API and new semantic:
5944 CRYPTO_dbg_realloc()
5947 All macros of value have retained their old syntax.
5948 [Richard Levitte and Bodo Moeller]
5950 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5951 ordering of SMIMECapabilities wasn't in "strength order" and there
5952 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5956 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5957 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5958 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5960 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5961 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5962 functionality to handle multipart/signed properly) and a utility
5963 called 'smime' to call all this stuff. This is based on code I
5964 originally wrote for Celo who have kindly allowed it to be
5965 included in OpenSSL.
5968 *) Add variants des_set_key_checked and des_set_key_unchecked of
5969 des_set_key (aka des_key_sched). Global variable des_check_key
5970 decides which of these is called by des_set_key; this way
5971 des_check_key behaves as it always did, but applications and
5972 the library itself, which was buggy for des_check_key == 1,
5973 have a cleaner way to pick the version they need.
5976 *) New function PKCS12_newpass() which changes the password of a
5980 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5981 dynamic mix. In both cases the ids can be used as an index into the
5982 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5983 functions so they accept a list of the field values and the
5984 application doesn't need to directly manipulate the X509_TRUST
5988 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5992 *) Modify the way the V3 extension code looks up extensions. This now
5993 works in a similar way to the object code: we have some "standard"
5994 extensions in a static table which is searched with OBJ_bsearch()
5995 and the application can add dynamic ones if needed. The file
5996 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5997 updated whenever a new extension is added to the core code and kept
5998 in ext_nid order. There is a simple program 'tabtest.c' which checks
5999 this. New extensions are not added too often so this file can readily
6000 be maintained manually.
6002 There are two big advantages in doing things this way. The extensions
6003 can be looked up immediately and no longer need to be "added" using
6004 X509V3_add_standard_extensions(): this function now does nothing.
6005 [Side note: I get *lots* of email saying the extension code doesn't
6006 work because people forget to call this function]
6007 Also no dynamic allocation is done unless new extensions are added:
6008 so if we don't add custom extensions there is no need to call
6009 X509V3_EXT_cleanup().
6012 *) Modify enc utility's salting as follows: make salting the default. Add a
6013 magic header, so unsalted files fail gracefully instead of just decrypting
6014 to garbage. This is because not salting is a big security hole, so people
6015 should be discouraged from doing it.
6018 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6019 digest to be passed on the command line but it only used this
6020 parameter when signing a certificate. Modified so all relevant
6021 operations are affected by the digest parameter including the
6022 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6023 DSA key was used because it didn't fix the digest.
6026 *) Initial certificate chain verify code. Currently tests the untrusted
6027 certificates for consistency with the verify purpose (which is set
6028 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6030 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6031 this is because it will reject chains with invalid extensions whereas
6032 every previous version of OpenSSL and SSLeay made no checks at all.
6034 Trust code: checks the root CA for the relevant trust settings. Trust
6035 settings have an initial value consistent with the verify purpose: e.g.
6036 if the verify purpose is for SSL client use it expects the CA to be
6037 trusted for SSL client use. However the default value can be changed to
6038 permit custom trust settings: one example of this would be to only trust
6039 certificates from a specific "secure" set of CAs.
6041 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6042 which should be used for version portability: especially since the
6043 verify structure is likely to change more often now.
6045 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6046 to set them. If not set then assume SSL clients will verify SSL servers
6049 Two new options to the verify program: -untrusted allows a set of
6050 untrusted certificates to be passed in and -purpose which sets the
6051 intended purpose of the certificate. If a purpose is set then the
6052 new chain verify code is used to check extension consistency.
6055 *) Support for the authority information access extension.
6058 *) Modify RSA and DSA PEM read routines to transparently handle
6059 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6060 public keys in a format compatible with certificate
6061 SubjectPublicKeyInfo structures. Unfortunately there were already
6062 functions called *_PublicKey_* which used various odd formats so
6063 these are retained for compatibility: however the DSA variants were
6064 never in a public release so they have been deleted. Changed dsa/rsa
6065 utilities to handle the new format: note no releases ever handled public
6066 keys so we should be OK.
6068 The primary motivation for this change is to avoid the same fiasco
6069 that dogs private keys: there are several incompatible private key
6070 formats some of which are standard and some OpenSSL specific and
6071 require various evil hacks to allow partial transparent handling and
6072 even then it doesn't work with DER formats. Given the option anything
6073 other than PKCS#8 should be dumped: but the other formats have to
6074 stay in the name of compatibility.
6076 With public keys and the benefit of hindsight one standard format
6077 is used which works with EVP_PKEY, RSA or DSA structures: though
6078 it clearly returns an error if you try to read the wrong kind of key.
6080 Added a -pubkey option to the 'x509' utility to output the public key.
6081 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6082 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6083 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6084 that do the same as the EVP_PKEY_assign_*() except they up the
6085 reference count of the added key (they don't "swallow" the
6089 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6090 CRLs would fail if the file contained no certificates or no CRLs:
6091 added a new function to read in both types and return the number
6092 read: this means that if none are read it will be an error. The
6093 DER versions of the certificate and CRL reader would always fail
6094 because it isn't possible to mix certificates and CRLs in DER format
6095 without choking one or the other routine. Changed this to just read
6096 a certificate: this is the best we can do. Also modified the code
6097 in apps/verify.c to take notice of return codes: it was previously
6098 attempting to read in certificates from NULL pointers and ignoring
6099 any errors: this is one reason why the cert and CRL reader seemed
6100 to work. It doesn't check return codes from the default certificate
6101 routines: these may well fail if the certificates aren't installed.
6104 *) Code to support otherName option in GeneralName.
6107 *) First update to verify code. Change the verify utility
6108 so it warns if it is passed a self signed certificate:
6109 for consistency with the normal behaviour. X509_verify
6110 has been modified to it will now verify a self signed
6111 certificate if *exactly* the same certificate appears
6112 in the store: it was previously impossible to trust a
6113 single self signed certificate. This means that:
6114 openssl verify ss.pem
6115 now gives a warning about a self signed certificate but
6116 openssl verify -CAfile ss.pem ss.pem
6120 *) For servers, store verify_result in SSL_SESSION data structure
6121 (and add it to external session representation).
6122 This is needed when client certificate verifications fails,
6123 but an application-provided verification callback (set by
6124 SSL_CTX_set_cert_verify_callback) allows accepting the session
6125 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6126 but returns 1): When the session is reused, we have to set
6127 ssl->verify_result to the appropriate error code to avoid
6129 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6131 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6132 case in PKCS7_dataInit() where the signed PKCS7 structure
6133 didn't contain any existing data because it was being created.
6134 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6136 *) Add a salt to the key derivation routines in enc.c. This
6137 forms the first 8 bytes of the encrypted file. Also add a
6138 -S option to allow a salt to be input on the command line.
6141 *) New function X509_cmp(). Oddly enough there wasn't a function
6142 to compare two certificates. We do this by working out the SHA1
6143 hash and comparing that. X509_cmp() will be needed by the trust
6147 *) SSL_get1_session() is like SSL_get_session(), but increments
6148 the reference count in the SSL_SESSION returned.
6149 [Geoff Thorpe <geoff@eu.c2.net>]
6151 *) Fix for 'req': it was adding a null to request attributes.
6152 Also change the X509_LOOKUP and X509_INFO code to handle
6153 certificate auxiliary information.
6156 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6160 *) Add the possibility to add extra information to the memory leak
6161 detecting output, to form tracebacks, showing from where each
6162 allocation was originated: CRYPTO_push_info("constant string") adds
6163 the string plus current file name and line number to a per-thread
6164 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6165 is like calling CYRPTO_pop_info() until the stack is empty.
6166 Also updated memory leak detection code to be multi-thread-safe.
6169 *) Add options -text and -noout to pkcs7 utility and delete the
6170 encryption options which never did anything. Update docs.
6173 *) Add options to some of the utilities to allow the pass phrase
6174 to be included on either the command line (not recommended on
6175 OSes like Unix) or read from the environment. Update the
6176 manpages and fix a few bugs.
6179 *) Add a few manpages for some of the openssl commands.
6182 *) Fix the -revoke option in ca. It was freeing up memory twice,
6183 leaking and not finding already revoked certificates.
6186 *) Extensive changes to support certificate auxiliary information.
6187 This involves the use of X509_CERT_AUX structure and X509_AUX
6188 functions. An X509_AUX function such as PEM_read_X509_AUX()
6189 can still read in a certificate file in the usual way but it
6190 will also read in any additional "auxiliary information". By
6191 doing things this way a fair degree of compatibility can be
6192 retained: existing certificates can have this information added
6193 using the new 'x509' options.
6195 Current auxiliary information includes an "alias" and some trust
6196 settings. The trust settings will ultimately be used in enhanced
6197 certificate chain verification routines: currently a certificate
6198 can only be trusted if it is self signed and then it is trusted
6202 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6203 The problem was that one of the replacement routines had not been working
6204 since SSLeay releases. For now the offending routine has been replaced
6205 with non-optimised assembler. Even so, this now gives around 95%
6206 performance improvement for 1024 bit RSA signs.
6209 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6210 handling. Most clients have the effective key size in bits equal to
6211 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6212 A few however don't do this and instead use the size of the decrypted key
6213 to determine the RC2 key length and the AlgorithmIdentifier to determine
6214 the effective key length. In this case the effective key length can still
6215 be 40 bits but the key length can be 168 bits for example. This is fixed
6216 by manually forcing an RC2 key into the EVP_PKEY structure because the
6217 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6218 the key length and effective key length are equal.
6221 *) Add a bunch of functions that should simplify the creation of
6222 X509_NAME structures. Now you should be able to do:
6223 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6224 and have it automatically work out the correct field type and fill in
6225 the structures. The more adventurous can try:
6226 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6227 and it will (hopefully) work out the correct multibyte encoding.
6230 *) Change the 'req' utility to use the new field handling and multibyte
6231 copy routines. Before the DN field creation was handled in an ad hoc
6232 way in req, ca, and x509 which was rather broken and didn't support
6233 BMPStrings or UTF8Strings. Since some software doesn't implement
6234 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6235 using the dirstring_type option. See the new comment in the default
6236 openssl.cnf for more info.
6239 *) Make crypto/rand/md_rand.c more robust:
6240 - Assure unique random numbers after fork().
6241 - Make sure that concurrent threads access the global counter and
6242 md serializably so that we never lose entropy in them
6243 or use exactly the same state in multiple threads.
6244 Access to the large state is not always serializable because
6245 the additional locking could be a performance killer, and
6246 md should be large enough anyway.
6249 *) New file apps/app_rand.c with commonly needed functionality
6250 for handling the random seed file.
6252 Use the random seed file in some applications that previously did not:
6254 dsaparam -genkey (which also ignored its '-rand' option),
6257 x509 (when signing).
6258 Except on systems with /dev/urandom, it is crucial to have a random
6259 seed file at least for key creation, DSA signing, and for DH exchanges;
6260 for RSA signatures we could do without one.
6262 gendh and gendsa (unlike genrsa) used to read only the first byte
6263 of each file listed in the '-rand' option. The function as previously
6264 found in genrsa is now in app_rand.c and is used by all programs
6265 that support '-rand'.
6268 *) In RAND_write_file, use mode 0600 for creating files;
6269 don't just chmod when it may be too late.
6272 *) Report an error from X509_STORE_load_locations
6273 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6276 *) New function ASN1_mbstring_copy() this copies a string in either
6277 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6278 into an ASN1_STRING type. A mask of permissible types is passed
6279 and it chooses the "minimal" type to use or an error if not type
6283 *) Add function equivalents to the various macros in asn1.h. The old
6284 macros are retained with an M_ prefix. Code inside the library can
6285 use the M_ macros. External code (including the openssl utility)
6286 should *NOT* in order to be "shared library friendly".
6289 *) Add various functions that can check a certificate's extensions
6290 to see if it usable for various purposes such as SSL client,
6291 server or S/MIME and CAs of these types. This is currently
6292 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6293 verification. Also added a -purpose flag to x509 utility to
6294 print out all the purposes.
6297 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6301 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6302 for, obtain and decode and extension and obtain its critical flag.
6303 This allows all the necessary extension code to be handled in a
6304 single function call.
6307 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6308 platforms. See crypto/rc4/rc4_enc.c for further details.
6311 *) New -noout option to asn1parse. This causes no output to be produced
6312 its main use is when combined with -strparse and -out to extract data
6313 from a file (which may not be in ASN.1 format).
6316 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6317 when producing the local key id.
6318 [Richard Levitte <levitte@stacken.kth.se>]
6320 *) New option -dhparam in s_server. This allows a DH parameter file to be
6321 stated explicitly. If it is not stated then it tries the first server
6322 certificate file. The previous behaviour hard coded the filename
6326 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6327 a public key to be input or output. For example:
6328 openssl rsa -in key.pem -pubout -out pubkey.pem
6329 Also added necessary DSA public key functions to handle this.
6332 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6333 in the message. This was handled by allowing
6334 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6335 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6337 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6338 to the end of the strings whereas this didn't. This would cause problems
6339 if strings read with d2i_ASN1_bytes() were later modified.
6340 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6342 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6343 data and it contains EOF it will end up returning an error. This is
6344 caused by input 46 bytes long. The cause is due to the way base64
6345 BIOs find the start of base64 encoded data. They do this by trying a
6346 trial decode on each line until they find one that works. When they
6347 do a flag is set and it starts again knowing it can pass all the
6348 data directly through the decoder. Unfortunately it doesn't reset
6349 the context it uses. This means that if EOF is reached an attempt
6350 is made to pass two EOFs through the context and this causes the
6351 resulting error. This can also cause other problems as well. As is
6352 usual with these problems it takes *ages* to find and the fix is
6353 trivial: move one line.
6354 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6356 *) Ugly workaround to get s_client and s_server working under Windows. The
6357 old code wouldn't work because it needed to select() on sockets and the
6358 tty (for keypresses and to see if data could be written). Win32 only
6359 supports select() on sockets so we select() with a 1s timeout on the
6360 sockets and then see if any characters are waiting to be read, if none
6361 are present then we retry, we also assume we can always write data to
6362 the tty. This isn't nice because the code then blocks until we've
6363 received a complete line of data and it is effectively polling the
6364 keyboard at 1s intervals: however it's quite a bit better than not
6365 working at all :-) A dedicated Windows application might handle this
6366 with an event loop for example.
6369 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6370 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6371 will be called when RSA_sign() and RSA_verify() are used. This is useful
6372 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6373 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6374 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6375 This necessitated the support of an extra signature type NID_md5_sha1
6376 for SSL signatures and modifications to the SSL library to use it instead
6377 of calling RSA_public_decrypt() and RSA_private_encrypt().
6380 *) Add new -verify -CAfile and -CApath options to the crl program, these
6381 will lookup a CRL issuers certificate and verify the signature in a
6382 similar way to the verify program. Tidy up the crl program so it
6383 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6384 less strict. It will now permit CRL extensions even if it is not
6385 a V2 CRL: this will allow it to tolerate some broken CRLs.
6388 *) Initialize all non-automatic variables each time one of the openssl
6389 sub-programs is started (this is necessary as they may be started
6390 multiple times from the "OpenSSL>" prompt).
6391 [Lennart Bang, Bodo Moeller]
6393 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6394 removing all other RSA functionality (this is what NO_RSA does). This
6395 is so (for example) those in the US can disable those operations covered
6396 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6400 *) Non-copying interface to BIO pairs.
6401 (still largely untested)
6404 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6405 ASCII string. This was handled independently in various places before.
6408 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6409 UTF8 strings a character at a time.
6412 *) Use client_version from client hello to select the protocol
6413 (s23_srvr.c) and for RSA client key exchange verification
6414 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6417 *) Add various utility functions to handle SPKACs, these were previously
6418 handled by poking round in the structure internals. Added new function
6419 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6420 print, verify and generate SPKACs. Based on an original idea from
6421 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6424 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6427 *) Allow the config file extension section to be overwritten on the
6428 command line. Based on an original idea from Massimiliano Pala
6429 <madwolf@comune.modena.it>. The new option is called -extensions
6430 and can be applied to ca, req and x509. Also -reqexts to override
6431 the request extensions in req and -crlexts to override the crl extensions
6435 *) Add new feature to the SPKAC handling in ca. Now you can include
6436 the same field multiple times by preceding it by "XXXX." for example:
6439 this is the same syntax as used in the req config file.
6442 *) Allow certificate extensions to be added to certificate requests. These
6443 are specified in a 'req_extensions' option of the req section of the
6444 config file. They can be printed out with the -text option to req but
6445 are otherwise ignored at present.
6448 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6449 data read consists of only the final block it would not decrypted because
6450 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6451 A misplaced 'break' also meant the decrypted final block might not be
6452 copied until the next read.
6455 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6456 a few extra parameters to the DH structure: these will be useful if
6457 for example we want the value of 'q' or implement X9.42 DH.
6460 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6461 provides hooks that allow the default DSA functions or functions on a
6462 "per key" basis to be replaced. This allows hardware acceleration and
6463 hardware key storage to be handled without major modification to the
6464 library. Also added low level modexp hooks and CRYPTO_EX structure and
6465 associated functions.
6468 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6469 as "read only": it can't be written to and the buffer it points to will
6470 not be freed. Reading from a read only BIO is much more efficient than
6471 a normal memory BIO. This was added because there are several times when
6472 an area of memory needs to be read from a BIO. The previous method was
6473 to create a memory BIO and write the data to it, this results in two
6474 copies of the data and an O(n^2) reading algorithm. There is a new
6475 function BIO_new_mem_buf() which creates a read only memory BIO from
6476 an area of memory. Also modified the PKCS#7 routines to use read only
6480 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6481 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6482 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6483 but a retry condition occured while trying to read the rest.
6486 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6487 NID_pkcs7_encrypted by default: this was wrong since this should almost
6488 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6489 the encrypted data type: this is a more sensible place to put it and it
6490 allows the PKCS#12 code to be tidied up that duplicated this
6494 *) Changed obj_dat.pl script so it takes its input and output files on
6495 the command line. This should avoid shell escape redirection problems
6499 *) Initial support for certificate extension requests, these are included
6500 in things like Xenroll certificate requests. Included functions to allow
6501 extensions to be obtained and added.
6504 *) -crlf option to s_client and s_server for sending newlines as
6505 CRLF (as required by many protocols).
6508 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6510 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6511 [Ralf S. Engelschall]
6513 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6514 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6516 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6520 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6521 DH parameters/keys (q is lost during that conversion, but the resulting
6522 DH parameters contain its length).
6524 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6525 much faster than DH_generate_parameters (which creates parameters
6526 where p = 2*q + 1), and also the smaller q makes DH computations
6527 much more efficient (160-bit exponentiation instead of 1024-bit
6528 exponentiation); so this provides a convenient way to support DHE
6529 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6530 utter importance to use
6531 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6533 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6534 when such DH parameters are used, because otherwise small subgroup
6535 attacks may become possible!
6538 *) Avoid memory leak in i2d_DHparams.
6541 *) Allow the -k option to be used more than once in the enc program:
6542 this allows the same encrypted message to be read by multiple recipients.
6545 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6546 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6547 it will always use the numerical form of the OID, even if it has a short
6551 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6552 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6553 otherwise bn_mod_exp was called. In the case of hardware keys for example
6554 no private key components need be present and it might store extra data
6555 in the RSA structure, which cannot be accessed from bn_mod_exp.
6556 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6557 private key operations.
6560 *) Added support for SPARC Linux.
6563 *) pem_password_cb function type incompatibly changed from
6564 typedef int pem_password_cb(char *buf, int size, int rwflag);
6566 ....(char *buf, int size, int rwflag, void *userdata);
6567 so that applications can pass data to their callbacks:
6568 The PEM[_ASN1]_{read,write}... functions and macros now take an
6569 additional void * argument, which is just handed through whenever
6570 the password callback is called.
6571 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6573 New function SSL_CTX_set_default_passwd_cb_userdata.
6575 Compatibility note: As many C implementations push function arguments
6576 onto the stack in reverse order, the new library version is likely to
6577 interoperate with programs that have been compiled with the old
6578 pem_password_cb definition (PEM_whatever takes some data that
6579 happens to be on the stack as its last argument, and the callback
6580 just ignores this garbage); but there is no guarantee whatsoever that
6583 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6584 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6585 problems not only on Windows, but also on some Unix platforms.
6586 To avoid problematic command lines, these definitions are now in an
6587 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6588 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6591 *) MIPS III/IV assembler module is reimplemented.
6594 *) More DES library cleanups: remove references to srand/rand and
6595 delete an unused file.
6598 *) Add support for the the free Netwide assembler (NASM) under Win32,
6599 since not many people have MASM (ml) and it can be hard to obtain.
6600 This is currently experimental but it seems to work OK and pass all
6601 the tests. Check out INSTALL.W32 for info.
6604 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6605 without temporary keys kept an extra copy of the server key,
6606 and connections with temporary keys did not free everything in case
6610 *) New function RSA_check_key and new openssl rsa option -check
6611 for verifying the consistency of RSA keys.
6612 [Ulf Moeller, Bodo Moeller]
6614 *) Various changes to make Win32 compile work:
6615 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6616 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6617 comparison" warnings.
6618 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6621 *) Add a debugging option to PKCS#5 v2 key generation function: when
6622 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6623 derived keys are printed to stderr.
6626 *) Copy the flags in ASN1_STRING_dup().
6627 [Roman E. Pavlov <pre@mo.msk.ru>]
6629 *) The x509 application mishandled signing requests containing DSA
6630 keys when the signing key was also DSA and the parameters didn't match.
6632 It was supposed to omit the parameters when they matched the signing key:
6633 the verifying software was then supposed to automatically use the CA's
6634 parameters if they were absent from the end user certificate.
6636 Omitting parameters is no longer recommended. The test was also
6637 the wrong way round! This was probably due to unusual behaviour in
6638 EVP_cmp_parameters() which returns 1 if the parameters match.
6639 This meant that parameters were omitted when they *didn't* match and
6640 the certificate was useless. Certificates signed with 'ca' didn't have
6642 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6644 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6645 The interface is as follows:
6646 Applications can use
6647 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6648 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6649 "off" is now the default.
6650 The library internally uses
6651 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6652 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6653 to disable memory-checking temporarily.
6655 Some inconsistent states that previously were possible (and were
6656 even the default) are now avoided.
6658 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6659 with each memory chunk allocated; this is occasionally more helpful
6660 than just having a counter.
6662 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6664 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6668 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6669 which largely parallels "options", but is for changing API behaviour,
6670 whereas "options" are about protocol behaviour.
6671 Initial "mode" flags are:
6673 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6674 a single record has been written.
6675 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6676 retries use the same buffer location.
6677 (But all of the contents must be
6681 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6684 *) Fix problems with no-hmac etc.
6685 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6687 *) New functions RSA_get_default_method(), RSA_set_method() and
6688 RSA_get_method(). These allows replacement of RSA_METHODs without having
6689 to mess around with the internals of an RSA structure.
6692 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6693 Also really enable memory leak checks in openssl.c and in some
6695 [Chad C. Mulligan, Bodo Moeller]
6697 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6698 up the length of negative integers. This has now been simplified to just
6699 store the length when it is first determined and use it later, rather
6700 than trying to keep track of where data is copied and updating it to
6702 [Steve Henson, reported by Brien Wheeler
6703 <bwheeler@authentica-security.com>]
6705 *) Add a new function PKCS7_signatureVerify. This allows the verification
6706 of a PKCS#7 signature but with the signing certificate passed to the
6707 function itself. This contrasts with PKCS7_dataVerify which assumes the
6708 certificate is present in the PKCS#7 structure. This isn't always the
6709 case: certificates can be omitted from a PKCS#7 structure and be
6710 distributed by "out of band" means (such as a certificate database).
6713 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6714 function prototypes in pem.h, also change util/mkdef.pl to add the
6715 necessary function names.
6718 *) mk1mf.pl (used by Windows builds) did not properly read the
6719 options set by Configure in the top level Makefile, and Configure
6720 was not even able to write more than one option correctly.
6721 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6724 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6725 file to be loaded from a BIO or FILE pointer. The BIO version will
6726 for example allow memory BIOs to contain config info.
6729 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6730 Whoever hopes to achieve shared-library compatibility across versions
6731 must use this, not the compile-time macro.
6732 (Exercise 0.9.4: Which is the minimum library version required by
6734 Note: All this applies only to multi-threaded programs, others don't
6738 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6739 through a BIO pair triggered the default case, i.e.
6740 SSLerr(...,SSL_R_UNKNOWN_STATE).
6743 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6744 can use the SSL library even if none of the specific BIOs is
6748 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6749 for the encoded length.
6750 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6752 *) Add initial documentation of the X509V3 functions.
6755 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6756 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6757 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6758 secure PKCS#8 private key format with a high iteration count.
6761 *) Fix determination of Perl interpreter: A perl or perl5
6762 _directory_ in $PATH was also accepted as the interpreter.
6763 [Ralf S. Engelschall]
6765 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6766 wrong with it but it was very old and did things like calling
6767 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6771 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6772 to use the new extension code.
6775 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6776 with macros. This should make it easier to change their form, add extra
6777 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6781 *) Add to configuration table a new entry that can specify an alternative
6782 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6783 according to Mark Crispin <MRC@Panda.COM>.
6787 *) DES CBC did not update the IV. Weird.
6790 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6791 Changing the behaviour of the former might break existing programs --
6792 where IV updating is needed, des_ncbc_encrypt can be used.
6795 *) When bntest is run from "make test" it drives bc to check its
6796 calculations, as well as internally checking them. If an internal check
6797 fails, it needs to cause bc to give a non-zero result or make test carries
6798 on without noticing the failure. Fixed.
6801 *) DES library cleanups.
6804 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6805 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6806 ciphers. NOTE: although the key derivation function has been verified
6807 against some published test vectors it has not been extensively tested
6808 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6812 *) Instead of "mkdir -p", which is not fully portable, use new
6813 Perl script "util/mkdir-p.pl".
6816 *) Rewrite the way password based encryption (PBE) is handled. It used to
6817 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6818 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6819 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6820 the 'parameter' field of the AlgorithmIdentifier is passed to the
6821 underlying key generation function so it must do its own ASN1 parsing.
6822 This has also changed the EVP_PBE_CipherInit() function which now has a
6823 'parameter' argument instead of literal salt and iteration count values
6824 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6827 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6828 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6829 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6830 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6831 value was just used as a "magic string" and not used directly its
6832 value doesn't matter.
6835 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6839 *) "linux-sparc64" configuration (ultrapenguin).
6840 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6841 "linux-sparc" configuration.
6842 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6844 *) config now generates no-xxx options for missing ciphers.
6847 *) Support the EBCDIC character set (work in progress).
6848 File ebcdic.c not yet included because it has a different license.
6849 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6851 *) Support BS2000/OSD-POSIX.
6852 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6854 *) Make callbacks for key generation use void * instead of char *.
6857 *) Make S/MIME samples compile (not yet tested).
6860 *) Additional typesafe stacks.
6863 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6867 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6869 *) New configuration variant "sco5-gcc".
6871 *) Updated some demos.
6872 [Sean O Riordain, Wade Scholine]
6874 *) Add missing BIO_free at exit of pkcs12 application.
6877 *) Fix memory leak in conf.c.
6880 *) Updates for Win32 to assembler version of MD5.
6883 *) Set #! path to perl in apps/der_chop to where we found it
6884 instead of using a fixed path.
6887 *) SHA library changes for irix64-mips4-cc.
6890 *) Improvements for VMS support.
6894 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6896 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6897 This also avoids the problems with SC4.2 and unpatched SC5.
6898 [Andy Polyakov <appro@fy.chalmers.se>]
6900 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6901 These are required because of the typesafe stack would otherwise break
6902 existing code. If old code used a structure member which used to be STACK
6903 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6904 sk_num or sk_value it would produce an error because the num, data members
6905 are not present in STACK_OF. Now it just produces a warning. sk_set
6906 replaces the old method of assigning a value to sk_value
6907 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6908 that does this will no longer work (and should use sk_set instead) but
6909 this could be regarded as a "questionable" behaviour anyway.
6912 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6913 correctly handle encrypted S/MIME data.
6916 *) Change type of various DES function arguments from des_cblock
6917 (which means, in function argument declarations, pointer to char)
6918 to des_cblock * (meaning pointer to array with 8 char elements),
6919 which allows the compiler to do more typechecking; it was like
6920 that back in SSLeay, but with lots of ugly casts.
6922 Introduce new type const_des_cblock.
6925 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6926 problems: find RecipientInfo structure that matches recipient certificate
6927 and initialise the ASN1 structures properly based on passed cipher.
6930 *) Belatedly make the BN tests actually check the results.
6933 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6934 to and from BNs: it was completely broken. New compilation option
6935 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6936 key elements as negative integers.
6939 *) Reorganize and speed up MD5.
6940 [Andy Polyakov <appro@fy.chalmers.se>]
6943 [Richard Levitte <richard@levitte.org>]
6945 *) New option -out to asn1parse to allow the parsed structure to be
6946 output to a file. This is most useful when combined with the -strparse
6947 option to examine the output of things like OCTET STRINGS.
6950 *) Make SSL library a little more fool-proof by not requiring any longer
6951 that SSL_set_{accept,connect}_state be called before
6952 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6953 in many applications because usually everything *appeared* to work as
6954 intended anyway -- now it really works as intended).
6957 *) Move openssl.cnf out of lib/.
6960 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6961 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6962 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6963 [Ralf S. Engelschall]
6965 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6966 handle PKCS#7 enveloped data properly.
6967 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6969 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6970 copying pointers. The cert_st handling is changed by this in
6971 various ways (and thus what used to be known as ctx->default_cert
6972 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6973 any longer when s->cert does not give us what we need).
6974 ssl_cert_instantiate becomes obsolete by this change.
6975 As soon as we've got the new code right (possibly it already is?),
6976 we have solved a couple of bugs of the earlier code where s->cert
6977 was used as if it could not have been shared with other SSL structures.
6979 Note that using the SSL API in certain dirty ways now will result
6980 in different behaviour than observed with earlier library versions:
6981 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6982 does not influence s as it used to.
6984 In order to clean up things more thoroughly, inside SSL_SESSION
6985 we don't use CERT any longer, but a new structure SESS_CERT
6986 that holds per-session data (if available); currently, this is
6987 the peer's certificate chain and, for clients, the server's certificate
6988 and temporary key. CERT holds only those values that can have
6989 meaningful defaults in an SSL_CTX.
6992 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6993 from the internal representation. Various PKCS#7 fixes: remove some
6994 evil casts and set the enc_dig_alg field properly based on the signing
6998 *) Allow PKCS#12 password to be set from the command line or the
6999 environment. Let 'ca' get its config file name from the environment
7000 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7004 *) Allow certificate policies extension to use an IA5STRING for the
7005 organization field. This is contrary to the PKIX definition but
7006 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7010 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7011 without disallowing inline assembler and the like for non-pedantic builds.
7014 *) Support Borland C++ builder.
7015 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7020 *) SHA-1 cleanups and performance enhancements.
7021 [Andy Polyakov <appro@fy.chalmers.se>]
7023 *) Sparc v8plus assembler for the bignum library.
7024 [Andy Polyakov <appro@fy.chalmers.se>]
7026 *) Accept any -xxx and +xxx compiler options in Configure.
7029 *) Update HPUX configuration.
7032 *) Add missing sk_<type>_unshift() function to safestack.h
7033 [Ralf S. Engelschall]
7035 *) New function SSL_CTX_use_certificate_chain_file that sets the
7036 "extra_cert"s in addition to the certificate. (This makes sense
7037 only for "PEM" format files, as chains as a whole are not
7041 *) Support verify_depth from the SSL API.
7042 x509_vfy.c had what can be considered an off-by-one-error:
7043 Its depth (which was not part of the external interface)
7044 was actually counting the number of certificates in a chain;
7045 now it really counts the depth.
7048 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7049 instead of X509err, which often resulted in confusing error
7050 messages since the error codes are not globally unique
7051 (e.g. an alleged error in ssl3_accept when a certificate
7052 didn't match the private key).
7054 *) New function SSL_CTX_set_session_id_context that allows to set a default
7055 value (so that you don't need SSL_set_session_id_context for each
7056 connection using the SSL_CTX).
7059 *) OAEP decoding bug fix.
7062 *) Support INSTALL_PREFIX for package builders, as proposed by
7066 *) New Configure options "threads" and "no-threads". For systems
7067 where the proper compiler options are known (currently Solaris
7068 and Linux), "threads" is the default.
7071 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7074 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7075 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7076 such as /usr/local/bin.
7079 *) "make linux-shared" to build shared libraries.
7080 [Niels Poppe <niels@netbox.org>]
7082 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7085 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7086 extension adding in x509 utility.
7089 *) Remove NOPROTO sections and error code comments.
7092 *) Partial rewrite of the DEF file generator to now parse the ANSI
7096 *) New Configure options --prefix=DIR and --openssldir=DIR.
7099 *) Complete rewrite of the error code script(s). It is all now handled
7100 by one script at the top level which handles error code gathering,
7101 header rewriting and C source file generation. It should be much better
7102 than the old method: it now uses a modified version of Ulf's parser to
7103 read the ANSI prototypes in all header files (thus the old K&R definitions
7104 aren't needed for error creation any more) and do a better job of
7105 translating function codes into names. The old 'ASN1 error code imbedded
7106 in a comment' is no longer necessary and it doesn't use .err files which
7107 have now been deleted. Also the error code call doesn't have to appear all
7108 on one line (which resulted in some large lines...).
7111 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7114 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7115 0 (which usually indicates a closed connection), but continue reading.
7118 *) Fix some race conditions.
7121 *) Add support for CRL distribution points extension. Add Certificate
7122 Policies and CRL distribution points documentation.
7125 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7128 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7129 8 of keying material. Merlin has also confirmed interop with this fix
7130 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7131 [Merlin Hughes <merlin@baltimore.ie>]
7133 *) Fix lots of warnings.
7134 [Richard Levitte <levitte@stacken.kth.se>]
7136 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7137 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7138 [Richard Levitte <levitte@stacken.kth.se>]
7140 *) Fix problems with sizeof(long) == 8.
7141 [Andy Polyakov <appro@fy.chalmers.se>]
7143 *) Change functions to ANSI C.
7146 *) Fix typos in error codes.
7147 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7149 *) Remove defunct assembler files from Configure.
7152 *) SPARC v8 assembler BIGNUM implementation.
7153 [Andy Polyakov <appro@fy.chalmers.se>]
7155 *) Support for Certificate Policies extension: both print and set.
7156 Various additions to support the r2i method this uses.
7159 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7160 return a const string when you are expecting an allocated buffer.
7163 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7164 types DirectoryString and DisplayText.
7167 *) Add code to allow r2i extensions to access the configuration database,
7168 add an LHASH database driver and add several ctx helper functions.
7171 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7172 fail when they extended the size of a BIGNUM.
7175 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7176 support typesafe stack.
7179 *) Fix typo in SSL_[gs]et_options().
7180 [Nils Frostberg <nils@medcom.se>]
7182 *) Delete various functions and files that belonged to the (now obsolete)
7183 old X509V3 handling code.
7186 *) New Configure option "rsaref".
7189 *) Don't auto-generate pem.h.
7192 *) Introduce type-safe ASN.1 SETs.
7195 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7196 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7198 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7199 that links with OpenSSL (well at least cause lots of warnings), but fear
7200 not: the conversion is trivial, and it eliminates loads of evil casts. A
7201 few STACKed things have been converted already. Feel free to convert more.
7202 In the fullness of time, I'll do away with the STACK type altogether.
7205 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7206 specified in <certfile> by updating the entry in the index.txt file.
7207 This way one no longer has to edit the index.txt file manually for
7208 revoking a certificate. The -revoke option does the gory details now.
7209 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7211 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7212 `-text' option at all and this way the `-noout -text' combination was
7213 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7214 [Ralf S. Engelschall]
7216 *) Make sure a corresponding plain text error message exists for the
7217 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7218 verify callback function determined that a certificate was revoked.
7219 [Ralf S. Engelschall]
7221 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7222 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7223 all available cipers including rc5, which was forgotten until now.
7224 In order to let the testing shell script know which algorithms
7225 are available, a new (up to now undocumented) command
7226 "openssl list-cipher-commands" is used.
7229 *) Bugfix: s_client occasionally would sleep in select() when
7230 it should have checked SSL_pending() first.
7233 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7234 the raw DSA values prior to ASN.1 encoding.
7237 *) Tweaks to Configure
7238 [Niels Poppe <niels@netbox.org>]
7240 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7244 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7247 *) New config option to avoid instructions that are illegal on the 80386.
7248 The default code is faster, but requires at least a 486.
7251 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7252 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7253 same as SSL2_VERSION anyway.
7256 *) New "-showcerts" option for s_client.
7259 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7260 application. Various cleanups and fixes.
7263 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7264 modify error routines to work internally. Add error codes and PBE init
7265 to library startup routines.
7268 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7269 packing functions to asn1 and evp. Changed function names and error
7270 codes along the way.
7273 *) PKCS12 integration: and so it begins... First of several patches to
7274 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7275 objects to objects.h
7278 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7279 and display support for Thawte strong extranet extension.
7282 *) Add LinuxPPC support.
7283 [Jeff Dubrule <igor@pobox.org>]
7285 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7286 bn_div_words in alpha.s.
7287 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7289 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7290 OAEP isn't supported when OpenSSL is built with RSAref.
7291 [Ulf Moeller <ulf@fitug.de>]
7293 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7294 so they no longer are missing under -DNOPROTO.
7295 [Soren S. Jorvang <soren@t.dk>]
7298 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7300 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7301 doesn't work when the session is reused. Coming soon!
7304 *) Fix a security hole, that allows sessions to be reused in the wrong
7305 context thus bypassing client cert protection! All software that uses
7306 client certs and session caches in multiple contexts NEEDS PATCHING to
7307 allow session reuse! A fuller solution is in the works.
7308 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7310 *) Some more source tree cleanups (removed obsolete files
7311 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7312 permission on "config" script to be executable) and a fix for the INSTALL
7314 [Ulf Moeller <ulf@fitug.de>]
7316 *) Remove some legacy and erroneous uses of malloc, free instead of
7318 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7320 *) Make rsa_oaep_test return non-zero on error.
7321 [Ulf Moeller <ulf@fitug.de>]
7323 *) Add support for native Solaris shared libraries. Configure
7324 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7325 if someone would make that last step automatic.
7326 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7328 *) ctx_size was not built with the right compiler during "make links". Fixed.
7331 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7332 except NULL ciphers". This means the default cipher list will no longer
7333 enable NULL ciphers. They need to be specifically enabled e.g. with
7334 the string "DEFAULT:eNULL".
7337 *) Fix to RSA private encryption routines: if p < q then it would
7338 occasionally produce an invalid result. This will only happen with
7339 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7342 *) Be less restrictive and allow also `perl util/perlpath.pl
7343 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7344 because this way one can also use an interpreter named `perl5' (which is
7345 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7346 installed as `perl').
7347 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7349 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7350 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7352 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7353 advapi32.lib to Win32 build and change the pem test comparision
7354 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7355 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7356 and crypto/des/ede_cbcm_enc.c.
7359 *) DES quad checksum was broken on big-endian architectures. Fixed.
7362 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7363 Win32 test batch file so it (might) work again. The Win32 test batch file
7364 is horrible: I feel ill....
7367 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7368 in e_os.h. Audit of header files to check ANSI and non ANSI
7369 sections: 10 functions were absent from non ANSI section and not exported
7370 from Windows DLLs. Fixed up libeay.num for new functions.
7373 *) Make `openssl version' output lines consistent.
7374 [Ralf S. Engelschall]
7376 *) Fix Win32 symbol export lists for BIO functions: Added
7377 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7378 to ms/libeay{16,32}.def.
7379 [Ralf S. Engelschall]
7381 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7382 fine under Unix and passes some trivial tests I've now added. But the
7383 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7384 added to make sure no one expects that this stuff really works in the
7385 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7386 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7388 [Ralf S. Engelschall]
7390 *) Fix the generation of two part addresses in perl.
7391 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7393 *) Add config entry for Linux on MIPS.
7394 [John Tobey <jtobey@channel1.com>]
7396 *) Make links whenever Configure is run, unless we are on Windoze.
7399 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7400 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7404 *) Add a useful kludge to allow package maintainers to specify compiler and
7405 other platforms details on the command line without having to patch the
7406 Configure script everytime: One now can use ``perl Configure
7407 <id>:<details>'', i.e. platform ids are allowed to have details appended
7408 to them (seperated by colons). This is treated as there would be a static
7409 pre-configured entry in Configure's %table under key <id> with value
7410 <details> and ``perl Configure <id>'' is called. So, when you want to
7411 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7412 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7413 now, which overrides the FreeBSD-elf entry on-the-fly.
7414 [Ralf S. Engelschall]
7416 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7419 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7420 on the `perl Configure ...' command line. This way one can compile
7421 OpenSSL libraries with Position Independent Code (PIC) which is needed
7422 for linking it into DSOs.
7423 [Ralf S. Engelschall]
7425 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7429 *) Cleaned up the LICENSE document: The official contact for any license
7430 questions now is the OpenSSL core team under openssl-core@openssl.org.
7431 And add a paragraph about the dual-license situation to make sure people
7432 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7433 to the OpenSSL toolkit.
7434 [Ralf S. Engelschall]
7436 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7437 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7438 Additonally cleaned up the `make links' target: Remove unnecessary
7439 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7440 to speed processing and no longer clutter the display with confusing
7441 stuff. Instead only the actually done links are displayed.
7442 [Ralf S. Engelschall]
7444 *) Permit null encryption ciphersuites, used for authentication only. It used
7445 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7446 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7450 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7451 signed attributes when verifying signatures (this would break them),
7452 the detached data encoding was wrong and public keys obtained using
7453 X509_get_pubkey() weren't freed.
7456 *) Add text documentation for the BUFFER functions. Also added a work around
7457 to a Win95 console bug. This was triggered by the password read stuff: the
7458 last character typed gets carried over to the next fread(). If you were
7459 generating a new cert request using 'req' for example then the last
7460 character of the passphrase would be CR which would then enter the first
7464 *) Added the new `Includes OpenSSL Cryptography Software' button as
7465 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7466 button and can be used by applications based on OpenSSL to show the
7467 relationship to the OpenSSL project.
7468 [Ralf S. Engelschall]
7470 *) Remove confusing variables in function signatures in files
7471 ssl/ssl_lib.c and ssl/ssl.h.
7472 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7474 *) Don't install bss_file.c under PREFIX/include/
7475 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7477 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7478 functions that return function pointers and has support for NT specific
7479 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7480 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7481 unsigned to signed types: this was killing the Win32 compile.
7484 *) Add new certificate file to stack functions,
7485 SSL_add_dir_cert_subjects_to_stack() and
7486 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7487 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7488 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7489 This means that Apache-SSL and similar packages don't have to mess around
7490 to add as many CAs as they want to the preferred list.
7493 *) Experiment with doxygen documentation. Currently only partially applied to
7495 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7496 openssl.doxy as the configuration file.
7499 *) Get rid of remaining C++-style comments which strict C compilers hate.
7500 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7502 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7503 compiled in by default: it has problems with large keys.
7506 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7507 DH private keys and/or callback functions which directly correspond to
7508 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7509 is needed for applications which have to configure certificates on a
7510 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7512 For the RSA certificate situation is makes no difference, but
7513 for the DSA certificate situation this fixes the "no shared cipher"
7514 problem where the OpenSSL cipher selection procedure failed because the
7515 temporary keys were not overtaken from the context and the API provided
7516 no way to reconfigure them.
7517 The new functions now let applications reconfigure the stuff and they
7518 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7519 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7520 non-public-API function ssl_cert_instantiate() is used as a helper
7521 function and also to reduce code redundancy inside ssl_rsa.c.
7522 [Ralf S. Engelschall]
7524 *) Move s_server -dcert and -dkey options out of the undocumented feature
7525 area because they are useful for the DSA situation and should be
7526 recognized by the users.
7527 [Ralf S. Engelschall]
7529 *) Fix the cipher decision scheme for export ciphers: the export bits are
7530 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7531 SSL_EXP_MASK. So, the original variable has to be used instead of the
7532 already masked variable.
7533 [Richard Levitte <levitte@stacken.kth.se>]
7535 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7536 [Richard Levitte <levitte@stacken.kth.se>]
7538 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7539 from `int' to `unsigned int' because it's a length and initialized by
7540 EVP_DigestFinal() which expects an `unsigned int *'.
7541 [Richard Levitte <levitte@stacken.kth.se>]
7543 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7544 script. Instead use the usual Shell->Perl transition trick.
7545 [Ralf S. Engelschall]
7547 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7548 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7549 -noout -modulus' as it's already the case for `openssl rsa -noout
7550 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7551 currently the public key is printed (a decision which was already done by
7552 `openssl dsa -modulus' in the past) which serves a similar purpose.
7553 Additionally the NO_RSA no longer completely removes the whole -modulus
7554 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7556 [Ralf S. Engelschall]
7558 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7559 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7560 [Arne Ansper <arne@ats.cyber.ee>]
7562 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7563 to be added. Now both 'req' and 'ca' can use new objects defined in the
7567 *) Add cool BIO that does syslog (or event log on NT).
7568 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7570 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7571 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7572 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7573 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7576 *) Add preliminary config info for new extension code.
7579 *) Make RSA_NO_PADDING really use no padding.
7580 [Ulf Moeller <ulf@fitug.de>]
7582 *) Generate errors when private/public key check is done.
7585 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7586 for some CRL extensions and new objects added.
7589 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7590 key usage extension and fuller support for authority key id.
7593 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7594 padding method for RSA, which is recommended for new applications in PKCS
7595 #1 v2.0 (RFC 2437, October 1998).
7596 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7597 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7598 against Bleichbacher's attack on RSA.
7599 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7602 *) Updates to the new SSL compression code
7603 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7605 *) Fix so that the version number in the master secret, when passed
7606 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7607 (because the server will not accept higher), that the version number
7608 is 0x03,0x01, not 0x03,0x00
7609 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7611 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7612 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7613 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7616 *) Support for RAW extensions where an arbitrary extension can be
7617 created by including its DER encoding. See apps/openssl.cnf for
7621 *) Make sure latest Perl versions don't interpret some generated C array
7622 code as Perl array code in the crypto/err/err_genc.pl script.
7623 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7625 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7626 not many people have the assembler. Various Win32 compilation fixes and
7627 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7631 *) Modify configure script 'Configure' to automatically create crypto/date.h
7632 file under Win32 and also build pem.h from pem.org. New script
7633 util/mkfiles.pl to create the MINFO file on environments that can't do a
7634 'make files': perl util/mkfiles.pl >MINFO should work.
7637 *) Major rework of DES function declarations, in the pursuit of correctness
7638 and purity. As a result, many evil casts evaporated, and some weirdness,
7639 too. You may find this causes warnings in your code. Zapping your evil
7640 casts will probably fix them. Mostly.
7643 *) Fix for a typo in asn1.h. Bug fix to object creation script
7644 obj_dat.pl. It considered a zero in an object definition to mean
7645 "end of object": none of the objects in objects.h have any zeros
7646 so it wasn't spotted.
7647 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7649 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7650 Masking (CBCM). In the absence of test vectors, the best I have been able
7651 to do is check that the decrypt undoes the encrypt, so far. Send me test
7652 vectors if you have them.
7655 *) Correct calculation of key length for export ciphers (too much space was
7656 allocated for null ciphers). This has not been tested!
7659 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7660 message is now correct (it understands "crypto" and "ssl" on its
7661 command line). There is also now an "update" option. This will update
7662 the util/ssleay.num and util/libeay.num files with any new functions.
7664 perl util/mkdef.pl crypto ssl update
7665 it will update them.
7668 *) Overhauled the Perl interface (perl/*):
7669 - ported BN stuff to OpenSSL's different BN library
7670 - made the perl/ source tree CVS-aware
7671 - renamed the package from SSLeay to OpenSSL (the files still contain
7672 their history because I've copied them in the repository)
7673 - removed obsolete files (the test scripts will be replaced
7674 by better Test::Harness variants in the future)
7675 [Ralf S. Engelschall]
7677 *) First cut for a very conservative source tree cleanup:
7678 1. merge various obsolete readme texts into doc/ssleay.txt
7679 where we collect the old documents and readme texts.
7680 2. remove the first part of files where I'm already sure that we no
7681 longer need them because of three reasons: either they are just temporary
7682 files which were left by Eric or they are preserved original files where
7683 I've verified that the diff is also available in the CVS via "cvs diff
7684 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7685 the crypto/md/ stuff).
7686 [Ralf S. Engelschall]
7688 *) More extension code. Incomplete support for subject and issuer alt
7689 name, issuer and authority key id. Change the i2v function parameters
7690 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7691 what that's for :-) Fix to ASN1 macro which messed up
7692 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7695 *) Preliminary support for ENUMERATED type. This is largely copied from the
7699 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7700 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7702 *) Make sure `make rehash' target really finds the `openssl' program.
7703 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7705 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7706 like to hear about it if this slows down other processors.
7709 *) Add CygWin32 platform information to Configure script.
7710 [Alan Batie <batie@aahz.jf.intel.com>]
7712 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7713 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7715 *) New program nseq to manipulate netscape certificate sequences
7718 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7722 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7723 but the BN code had some problems that would cause failures when
7724 doing certificate verification and some other functions.
7725 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7727 *) Add ASN1 and PEM code to support netscape certificate sequences.
7730 *) Add ASN1 and PEM code to support netscape certificate sequences.
7733 *) Add several PKIX and private extended key usage OIDs.
7736 *) Modify the 'ca' program to handle the new extension code. Modify
7737 openssl.cnf for new extension format, add comments.
7740 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7741 and add a sample to openssl.cnf so req -x509 now adds appropriate
7745 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7746 error code, add initial support to X509_print() and x509 application.
7749 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7750 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7751 stuff is currently isolated and isn't even compiled yet.
7754 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7755 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7756 Removed the versions check from X509 routines when loading extensions:
7757 this allows certain broken certificates that don't set the version
7758 properly to be processed.
7761 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7762 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7763 can still be regenerated with "make depend".
7766 *) Spelling mistake in C version of CAST-128.
7767 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7769 *) Changes to the error generation code. The perl script err-code.pl
7770 now reads in the old error codes and retains the old numbers, only
7771 adding new ones if necessary. It also only changes the .err files if new
7772 codes are added. The makefiles have been modified to only insert errors
7773 when needed (to avoid needlessly modifying header files). This is done
7774 by only inserting errors if the .err file is newer than the auto generated
7775 C file. To rebuild all the error codes from scratch (the old behaviour)
7776 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7777 or delete all the .err files.
7780 *) CAST-128 was incorrectly implemented for short keys. The C version has
7781 been fixed, but is untested. The assembler versions are also fixed, but
7782 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7783 to regenerate it if needed.
7784 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7785 Hagino <itojun@kame.net>]
7787 *) File was opened incorrectly in randfile.c.
7788 [Ulf Möller <ulf@fitug.de>]
7790 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7791 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7792 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7793 al: it's just almost always a UTCTime. Note this patch adds new error
7794 codes so do a "make errors" if there are problems.
7797 *) Correct Linux 1 recognition in config.
7798 [Ulf Möller <ulf@fitug.de>]
7800 *) Remove pointless MD5 hash when using DSA keys in ca.
7801 [Anonymous <nobody@replay.com>]
7803 *) Generate an error if given an empty string as a cert directory. Also
7804 generate an error if handed NULL (previously returned 0 to indicate an
7805 error, but didn't set one).
7806 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7808 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7811 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7812 parameters. This was causing a warning which killed off the Win32 compile.
7815 *) Remove C++ style comments from crypto/bn/bn_local.h.
7816 [Neil Costigan <neil.costigan@celocom.com>]
7818 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7819 based on a text string, looking up short and long names and finally
7820 "dot" format. The "dot" format stuff didn't work. Added new function
7821 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7822 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7823 OID is not part of the table.
7826 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7827 X509_LOOKUP_by_alias().
7830 *) Sort openssl functions by name.
7833 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7834 encryption from sample DSA keys (in case anyone is interested the password
7838 *) Make _all_ *_free functions accept a NULL pointer.
7839 [Frans Heymans <fheymans@isaserver.be>]
7841 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7843 [Anonymous <nobody@replay.com>]
7845 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7846 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7848 *) Don't blow it for numeric -newkey arguments to apps/req.
7849 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7851 *) Temp key "for export" tests were wrong in s3_srvr.c.
7852 [Anonymous <nobody@replay.com>]
7854 *) Add prototype for temp key callback functions
7855 SSL_CTX_set_tmp_{rsa,dh}_callback().
7858 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7859 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7862 *) X509_name_add_entry() freed the wrong thing after an error.
7863 [Arne Ansper <arne@ats.cyber.ee>]
7865 *) rsa_eay.c would attempt to free a NULL context.
7866 [Arne Ansper <arne@ats.cyber.ee>]
7868 *) BIO_s_socket() had a broken should_retry() on Windoze.
7869 [Arne Ansper <arne@ats.cyber.ee>]
7871 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7872 [Arne Ansper <arne@ats.cyber.ee>]
7874 *) Make sure the already existing X509_STORE->depth variable is initialized
7875 in X509_STORE_new(), but document the fact that this variable is still
7876 unused in the certificate verification process.
7877 [Ralf S. Engelschall]
7879 *) Fix the various library and apps files to free up pkeys obtained from
7880 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7883 *) Fix reference counting in X509_PUBKEY_get(). This makes
7884 demos/maurice/example2.c work, amongst others, probably.
7885 [Steve Henson and Ben Laurie]
7887 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7888 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7889 are no longer created. This way we have a single and consistent command
7890 line interface `openssl <command>', similar to `cvs <command>'.
7891 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7893 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7894 BIT STRING wrapper always have zero unused bits.
7897 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7900 *) Make the top-level INSTALL documentation easier to understand.
7903 *) Makefiles updated to exit if an error occurs in a sub-directory
7904 make (including if user presses ^C) [Paul Sutton]
7906 *) Make Montgomery context stuff explicit in RSA data structure.
7909 *) Fix build order of pem and err to allow for generated pem.h.
7912 *) Fix renumbering bug in X509_NAME_delete_entry().
7915 *) Enhanced the err-ins.pl script so it makes the error library number
7916 global and can add a library name. This is needed for external ASN1 and
7917 other error libraries.
7920 *) Fixed sk_insert which never worked properly.
7923 *) Fix ASN1 macros so they can handle indefinite length construted
7924 EXPLICIT tags. Some non standard certificates use these: they can now
7928 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7929 into a single doc/ssleay.txt bundle. This way the information is still
7930 preserved but no longer messes up this directory. Now it's new room for
7931 the new set of documenation files.
7932 [Ralf S. Engelschall]
7934 *) SETs were incorrectly DER encoded. This was a major pain, because they
7935 shared code with SEQUENCEs, which aren't coded the same. This means that
7936 almost everything to do with SETs or SEQUENCEs has either changed name or
7937 number of arguments.
7938 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7940 *) Fix test data to work with the above.
7943 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7944 was already fixed by Eric for 0.9.1 it seems.
7945 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7947 *) Autodetect FreeBSD3.
7950 *) Fix various bugs in Configure. This affects the following platforms:
7954 unixware-2.0-pentium
7958 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7959 before they are needed.
7962 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7966 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7968 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7969 changed SSLeay to OpenSSL in version strings.
7970 [Ralf S. Engelschall]
7972 *) Some fixups to the top-level documents.
7975 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7976 because the symlink to include/ was missing.
7977 [Ralf S. Engelschall]
7979 *) Incorporated the popular no-RSA/DSA-only patches
7980 which allow to compile a RSA-free SSLeay.
7981 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7983 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7984 when "ssleay" is still not found.
7985 [Ralf S. Engelschall]
7987 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7988 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7990 *) Updated the README file.
7991 [Ralf S. Engelschall]
7993 *) Added various .cvsignore files in the CVS repository subdirs
7994 to make a "cvs update" really silent.
7995 [Ralf S. Engelschall]
7997 *) Recompiled the error-definition header files and added
7998 missing symbols to the Win32 linker tables.
7999 [Ralf S. Engelschall]
8001 *) Cleaned up the top-level documents;
8002 o new files: CHANGES and LICENSE
8003 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8004 o merged COPYRIGHT into LICENSE
8005 o removed obsolete TODO file
8006 o renamed MICROSOFT to INSTALL.W32
8007 [Ralf S. Engelschall]
8009 *) Removed dummy files from the 0.9.1b source tree:
8010 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8011 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8012 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8013 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8014 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8015 [Ralf S. Engelschall]
8017 *) Added various platform portability fixes.
8020 *) The Genesis of the OpenSSL rpject:
8021 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8022 Young and Tim J. Hudson created while they were working for C2Net until
8024 [The OpenSSL Project]
8027 Changes between 0.9.0b and 0.9.1b [not released]
8029 *) Updated a few CA certificates under certs/
8032 *) Changed some BIGNUM api stuff.
8035 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8036 DGUX x86, Linux Alpha, etc.
8039 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8040 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8044 *) Add -strparse option to asn1pars program which parses nested
8046 [Dr Stephen Henson <shenson@bigfoot.com>]
8048 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8051 *) DSA fix for "ca" program.
8054 *) Added "-genkey" option to "dsaparam" program.
8057 *) Added RIPE MD160 (rmd160) message digest.
8060 *) Added -a (all) option to "ssleay version" command.
8063 *) Added PLATFORM define which is the id given to Configure.
8066 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8069 *) Extended the ASN.1 parser routines.
8072 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8075 *) Added a BN_CTX to the BN library.
8078 *) Fixed the weak key values in DES library
8081 *) Changed API in EVP library for cipher aliases.
8084 *) Added support for RC2/64bit cipher.
8087 *) Converted the lhash library to the crypto/mem.c functions.
8090 *) Added more recognized ASN.1 object ids.
8093 *) Added more RSA padding checks for SSL/TLS.
8096 *) Added BIO proxy/filter functionality.
8099 *) Added extra_certs to SSL_CTX which can be used
8100 send extra CA certificates to the client in the CA cert chain sending
8101 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8104 *) Now Fortezza is denied in the authentication phase because
8105 this is key exchange mechanism is not supported by SSLeay at all.
8108 *) Additional PKCS1 checks.
8111 *) Support the string "TLSv1" for all TLS v1 ciphers.
8114 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8115 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8118 *) Fixed a few memory leaks.
8121 *) Fixed various code and comment typos.
8124 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8125 bytes sent in the client random.
8126 [Edward Bishop <ebishop@spyglass.com>]