5 Changes between 0.9.8e and 0.9.9 [xx XXX xxxx]
7 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
8 to external functions. This can be used to increase CRL handling
9 efficiency especially when CRLs are very large by (for example) storing
10 the CRL revoked certificates in a database.
13 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
14 new CRLs added to a directory can be used. New command line option
15 -verify_return_error to s_client and s_server. This causes real errors
16 to be returned by the verify callback instead of carrying on no matter
17 what. This reflects the way a "real world" verify callback would behave.
20 *) GOST engine, supporting several GOST algorithms and public key formats.
21 Kindly donated by Cryptocom.
24 *) Partial support for Issuing Distribution Point CRL extension. CRLs
25 partitioned by DP are handled but no indirect CRL or reason partitioning
26 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
27 selected via a scoring technique which handles IDP and AKID in CRLs.
30 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
31 will ultimately be used for all verify operations: this will remove the
32 X509_STORE dependency on certificate verification and allow alternative
33 lookup methods. X509_STORE based implementations of these two callbacks.
36 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
37 Modify get_crl() to find a valid (unexpired) CRL if possible.
40 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
41 this would be called X509_CRL_cmp() but that name is already used by
42 a function that just compares CRL issuer names. Cache several CRL
43 extensions in X509_CRL structure and cache CRLDP in X509.
46 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
47 this maps equivalent X509_NAME structures into a consistent structure.
48 Name comparison can then be performed rapidly using memcmp().
51 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
55 *) Allow digests to supply their own micalg string for S/MIME type using
56 the ctrl EVP_MD_CTRL_MICALG.
59 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
60 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
61 ctrl. It can then customise the structure before and/or after signing
65 *) New function OBJ_add_sigid() to allow application defined signature OIDs
66 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
67 to free up any added signature OIDs.
70 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
71 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
72 digest and cipher tables. New options added to openssl utility:
73 list-message-digest-algorithms and list-cipher-algorithms.
76 *) In addition to the numerical (unsigned long) thread ID, provide
77 for a pointer (void *) thread ID. This helps accomodate systems
78 that do not provide an unsigned long thread ID. OpenSSL assumes
79 it is in the same thread iff both the numerical and the pointer
80 thread ID agree; so applications are just required to define one
81 of them appropriately (e.g., by using a pointer to a per-thread
82 memory object malloc()ed by the application for the pointer-type
83 thread ID). Exactly analoguous to the existing functions
85 void CRYPTO_set_id_callback(unsigned long (*func)(void));
86 unsigned long (*CRYPTO_get_id_callback(void))(void);
87 unsigned long CRYPTO_thread_id(void);
89 we now have additional functions
91 void CRYPTO_set_idptr_callback(void *(*func)(void));
92 void *(*CRYPTO_get_idptr_callback(void))(void);
93 void *CRYPTO_thread_idptr(void);
95 also in <openssl/crypto.h>. The default value for
96 CRYPTO_thread_idptr() if the application has not provided its own
100 *) Change the array representation of binary polynomials: the list
101 of degrees of non-zero coefficients is now terminated with -1.
102 Previously it was terminated with 0, which was also part of the
103 value; thus, the array representation was not applicable to
104 polynomials where t^0 has coefficient zero. This change makes
105 the array representation useful in a more general context.
108 *) Various modifications and fixes to SSL/TLS cipher string
109 handling. For ECC, the code now distinguishes between fixed ECDH
110 with RSA certificates on the one hand and with ECDSA certificates
111 on the other hand, since these are separate ciphersuites. The
112 unused code for Fortezza ciphersuites has been removed.
114 For consistency with EDH, ephemeral ECDH is now called "EECDH"
115 (not "ECDHE"). For consistency with the code for DH
116 certificates, use of ECDH certificates is now considered ECDH
117 authentication, not RSA or ECDSA authentication (the latter is
118 merely the CA's signing algorithm and not actively used in the
121 The temporary ciphersuite alias "ECCdraft" is no longer
122 available, and ECC ciphersuites are no longer excluded from "ALL"
123 and "DEFAULT". The following aliases now exist for RFC 4492
124 ciphersuites, most of these by analogy with the DH case:
126 kECDHr - ECDH cert, signed with RSA
127 kECDHe - ECDH cert, signed with ECDSA
128 kECDH - ECDH cert (signed with either RSA or ECDSA)
129 kEECDH - ephemeral ECDH
130 ECDH - ECDH cert or ephemeral ECDH
136 AECDH - anonymous ECDH
137 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
141 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
142 Use correct micalg parameters depending on digest(s) in signed message.
145 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
146 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
149 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
150 an engine to register a method. Add ENGINE lookups for methods and
151 functional reference processing.
154 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
155 EVP_{Sign,Verify}* which allow an application to customise the signature
159 *) New -resign option to smime utility. This adds one or more signers
160 to an existing PKCS#7 signedData structure. Also -md option to use an
161 alternative message digest algorithm for signing.
164 *) Tidy up PKCS#7 routines and add new functions to make it easier to
165 create PKCS7 structures containing multiple signers. Update smime
166 application to support multiple signers.
169 *) New -macalg option to pkcs12 utility to allow setting of an alternative
173 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
174 Reorganize PBE internals to lookup from a static table using NIDs,
175 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
176 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
177 PRF which will be automatically used with PBES2.
180 *) Replace the algorithm specific calls to generate keys in "req" with the
184 *) Update PKCS#7 enveloped data routines to use new API. This is now
185 supported by any public key method supporting the encrypt operation. A
186 ctrl is added to allow the public key algorithm to examine or modify
187 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
191 *) Add a ctrl to asn1 method to allow a public key algorithm to express
192 a default digest type to use. In most cases this will be SHA1 but some
193 algorithms (such as GOST) need to specify an alternative digest. The
194 return value indicates how strong the prefernce is 1 means optional and
195 2 is mandatory (that is it is the only supported type). Modify
196 ASN1_item_sign() to accept a NULL digest argument to indicate it should
197 use the default md. Update openssl utilities to use the default digest
198 type for signing if it is not explicitly indicated.
201 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
202 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
203 signing method from the key type. This effectively removes the link
204 between digests and public key types.
207 *) Add an OID cross reference table and utility functions. Its purpose is to
208 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
209 rsaEncryption. This will allow some of the algorithm specific hackery
210 needed to use the correct OID to be removed.
213 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
214 structures for PKCS7_sign(). They are now set up by the relevant public
218 *) Add provisional EC pkey method with support for ECDSA and ECDH.
221 *) Add support for key derivation (agreement) in the API, DH method and
225 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
226 public and private key formats. As a side effect these add additional
227 command line functionality not previously available: DSA signatures can be
228 generated and verified using pkeyutl and DH key support and generation in
233 [Oliver Tappe <zooey@hirschkaefer.de>]
235 *) New make target "install_html_docs" installs HTML renditions of the
237 [Oliver Tappe <zooey@hirschkaefer.de>]
239 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
240 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
241 support key and parameter generation and add initial key generation
242 functionality for RSA.
245 *) Add functions for main EVP_PKEY_method operations. The undocumented
246 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
247 EVP_PKEY_{encrypt,decrypt}_old.
250 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
251 key API, doesn't do much yet.
254 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
255 public key algorithms. New option to openssl utility:
256 "list-public-key-algorithms" to print out info.
259 *) Implement the Supported Elliptic Curves Extension for
260 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
263 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
264 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
267 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
268 utilities such as rsa, dsa, dsaparam etc except they process any key
272 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
273 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
274 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
278 *) Initial support for pluggable public key ASN1.
279 De-spaghettify the public key ASN1 handling. Move public and private
280 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
281 algorithm specific handling to a single module within the relevant
282 algorithm directory. Add functions to allow (near) opaque processing
283 of public and private key structures.
286 *) Implement the Supported Point Formats Extension for
287 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
290 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
291 for the psk identity [hint] and the psk callback functions to the
292 SSL_SESSION, SSL and SSL_CTX structure.
295 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
299 SSL_CTX_use_psk_identity_hint
300 SSL_get_psk_identity_hint
302 SSL_use_psk_identity_hint
304 [Mika Kousa and Pasi Eronen of Nokia Corporation]
306 *) Add RFC 3161 compliant time stamp request creation, response generation
307 and response verification functionality.
308 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
310 *) Add initial support for TLS extensions, specifically for the server_name
311 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
312 have new members for a host name. The SSL data structure has an
313 additional member SSL_CTX *initial_ctx so that new sessions can be
314 stored in that context to allow for session resumption, even after the
315 SSL has been switched to a new SSL_CTX in reaction to a client's
316 server_name extension.
318 New functions (subject to change):
321 SSL_get_servername_type()
324 New CTRL codes and macros (subject to change):
326 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
327 - SSL_CTX_set_tlsext_servername_callback()
328 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
329 - SSL_CTX_set_tlsext_servername_arg()
330 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
332 openssl s_client has a new '-servername ...' option.
334 openssl s_server has new options '-servername_host ...', '-cert2 ...',
335 '-key2 ...', '-servername_fatal' (subject to change). This allows
336 testing the HostName extension for a specific single host name ('-cert'
337 and '-key' remain fallbacks for handshakes without HostName
338 negotiation). If the unrecogninzed_name alert has to be sent, this by
339 default is a warning; it becomes fatal with the '-servername_fatal'
342 [Peter Sylvester, Remy Allais, Christophe Renou]
344 *) Whirlpool hash implementation is added.
347 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
348 bn(64,32). Because of instruction set limitations it doesn't have
349 any negative impact on performance. This was done mostly in order
350 to make it possible to share assembler modules, such as bn_mul_mont
351 implementations, between 32- and 64-bit builds without hassle.
354 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
355 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
359 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
360 dedicated Montgomery multiplication procedure, is introduced.
361 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
362 "64-bit" performance on certain 32-bit targets.
365 *) New option SSL_OP_NO_COMP to disable use of compression selectively
366 in SSL structures. New SSL ctrl to set maximum send fragment size.
367 Save memory by seeting the I/O buffer sizes dynamically instead of
368 using the maximum available value.
371 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
372 in addition to the text details.
375 *) Very, very preliminary EXPERIMENTAL support for printing of general
376 ASN1 structures. This currently produces rather ugly output and doesn't
377 handle several customised structures at all.
380 *) Integrated support for PVK file format and some related formats such
381 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
382 these in the 'rsa' and 'dsa' utilities.
385 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
388 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
389 place for the (very old) "NETSCAPE" format certificates which are now
390 handled using new ASN1 code equivalents.
393 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
394 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
395 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
398 *) Modify CRL distribution points extension code to print out previously
399 unsupported fields. Enhance extension setting code to allow setting of
403 *) Add print and set support for Issuing Distribution Point CRL extension.
406 *) Change 'Configure' script to enable Camellia by default.
409 Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
411 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
413 *) Introduce limits to prevent malicious keys being able to
414 cause a denial of service. (CVE-2006-2940)
415 [Steve Henson, Bodo Moeller]
417 *) Fix ASN.1 parsing of certain invalid structures that can result
418 in a denial of service. (CVE-2006-2937) [Steve Henson]
420 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
421 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
423 *) Fix SSL client code which could crash if connecting to a
424 malicious SSLv2 server. (CVE-2006-4343)
425 [Tavis Ormandy and Will Drewry, Google Security Team]
427 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
428 match only those. Before that, "AES256-SHA" would be interpreted
429 as a pattern and match "AES128-SHA" too (since AES128-SHA got
430 the same strength classification in 0.9.7h) as we currently only
431 have a single AES bit in the ciphersuite description bitmap.
432 That change, however, also applied to ciphersuite strings such as
433 "RC4-MD5" that intentionally matched multiple ciphersuites --
434 namely, SSL 2.0 ciphersuites in addition to the more common ones
435 from SSL 3.0/TLS 1.0.
437 So we change the selection algorithm again: Naming an explicit
438 ciphersuite selects this one ciphersuite, and any other similar
439 ciphersuite (same bitmap) from *other* protocol versions.
440 Thus, "RC4-MD5" again will properly select both the SSL 2.0
441 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
443 Since SSL 2.0 does not have any ciphersuites for which the
444 128/256 bit distinction would be relevant, this works for now.
445 The proper fix will be to use different bits for AES128 and
446 AES256, which would have avoided the problems from the beginning;
447 however, bits are scarce, so we can only do this in a new release
448 (not just a patchlevel) when we can change the SSL_CIPHER
449 definition to split the single 'unsigned long mask' bitmap into
450 multiple values to extend the available space.
454 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
456 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
457 (CVE-2006-4339) [Ben Laurie and Google Security Team]
459 *) Add AES IGE and biIGE modes.
462 *) Change the Unix randomness entropy gathering to use poll() when
463 possible instead of select(), since the latter has some
464 undesirable limitations.
465 [Darryl Miles via Richard Levitte and Bodo Moeller]
467 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
468 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
469 cannot be implicitly activated as part of, e.g., the "AES" alias.
470 However, please upgrade to OpenSSL 0.9.9[-dev] for
471 non-experimental use of the ECC ciphersuites to get TLS extension
472 support, which is required for curve and point format negotiation
473 to avoid potential handshake problems.
476 *) Disable rogue ciphersuites:
478 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
479 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
480 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
482 The latter two were purportedly from
483 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
486 Also deactive the remaining ciphersuites from
487 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
488 unofficial, and the ID has long expired.
491 *) Fix RSA blinding Heisenbug (problems sometimes occured on
492 dual-core machines) and other potential thread-safety issues.
495 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
496 versions), which is now available for royalty-free use
497 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
498 Also, add Camellia TLS ciphersuites from RFC 4132.
500 To minimize changes between patchlevels in the OpenSSL 0.9.8
501 series, Camellia remains excluded from compilation unless OpenSSL
502 is configured with 'enable-camellia'.
505 *) Disable the padding bug check when compression is in use. The padding
506 bug check assumes the first packet is of even length, this is not
507 necessarily true if compresssion is enabled and can result in false
508 positives causing handshake failure. The actual bug test is ancient
509 code so it is hoped that implementations will either have fixed it by
510 now or any which still have the bug do not support compression.
513 Changes between 0.9.8a and 0.9.8b [04 May 2006]
515 *) When applying a cipher rule check to see if string match is an explicit
516 cipher suite and only match that one cipher suite if it is.
519 *) Link in manifests for VC++ if needed.
520 [Austin Ziegler <halostatue@gmail.com>]
522 *) Update support for ECC-based TLS ciphersuites according to
523 draft-ietf-tls-ecc-12.txt with proposed changes (but without
524 TLS extensions, which are supported starting with the 0.9.9
525 branch, not in the OpenSSL 0.9.8 branch).
528 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
529 opaque EVP_CIPHER_CTX handling.
532 *) Fixes and enhancements to zlib compression code. We now only use
533 "zlib1.dll" and use the default __cdecl calling convention on Win32
534 to conform with the standards mentioned here:
535 http://www.zlib.net/DLL_FAQ.txt
536 Static zlib linking now works on Windows and the new --with-zlib-include
537 --with-zlib-lib options to Configure can be used to supply the location
538 of the headers and library. Gracefully handle case where zlib library
542 *) Several fixes and enhancements to the OID generation code. The old code
543 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
544 handle numbers larger than ULONG_MAX, truncated printing and had a
545 non standard OBJ_obj2txt() behaviour.
548 *) Add support for building of engines under engine/ as shared libraries
549 under VC++ build system.
552 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
553 Hopefully, we will not see any false combination of paths any more.
556 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
558 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
559 (part of SSL_OP_ALL). This option used to disable the
560 countermeasure against man-in-the-middle protocol-version
561 rollback in the SSL 2.0 server implementation, which is a bad
562 idea. (CVE-2005-2969)
564 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
565 for Information Security, National Institute of Advanced Industrial
566 Science and Technology [AIST], Japan)]
568 *) Add two function to clear and return the verify parameter flags.
571 *) Keep cipherlists sorted in the source instead of sorting them at
572 runtime, thus removing the need for a lock.
575 *) Avoid some small subgroup attacks in Diffie-Hellman.
576 [Nick Mathewson and Ben Laurie]
578 *) Add functions for well-known primes.
581 *) Extended Windows CE support.
582 [Satoshi Nakamura and Andy Polyakov]
584 *) Initialize SSL_METHOD structures at compile time instead of during
585 runtime, thus removing the need for a lock.
588 *) Make PKCS7_decrypt() work even if no certificate is supplied by
589 attempting to decrypt each encrypted key in turn. Add support to
593 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
595 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
598 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
601 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
602 key into the same file any more.
605 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
608 *) Add -utf8 command line and config file option to 'ca'.
609 [Stefan <stf@udoma.org]
611 *) Removed the macro des_crypt(), as it seems to conflict with some
612 libraries. Use DES_crypt().
615 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
616 involves renaming the source and generated shared-libs for
617 both. The engines will accept the corrected or legacy ids
618 ('ncipher' and '4758_cca' respectively) when binding. NB,
619 this only applies when building 'shared'.
620 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
622 *) Add attribute functions to EVP_PKEY structure. Modify
623 PKCS12_create() to recognize a CSP name attribute and
624 use it. Make -CSP option work again in pkcs12 utility.
627 *) Add new functionality to the bn blinding code:
628 - automatic re-creation of the BN_BLINDING parameters after
629 a fixed number of uses (currently 32)
630 - add new function for parameter creation
631 - introduce flags to control the update behaviour of the
632 BN_BLINDING parameters
633 - hide BN_BLINDING structure
634 Add a second BN_BLINDING slot to the RSA structure to improve
635 performance when a single RSA object is shared among several
639 *) Add support for DTLS.
640 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
642 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
643 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
646 *) Remove buggy and incompletet DH cert support from
647 ssl/ssl_rsa.c and ssl/s3_both.c
650 *) Use SHA-1 instead of MD5 as the default digest algorithm for
651 the apps/openssl applications.
654 *) Compile clean with "-Wall -Wmissing-prototypes
655 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
656 DEBUG_SAFESTACK must also be set.
659 *) Change ./Configure so that certain algorithms can be disabled by default.
660 The new counterpiece to "no-xxx" is "enable-xxx".
662 The patented RC5 and MDC2 algorithms will now be disabled unless
663 "enable-rc5" and "enable-mdc2", respectively, are specified.
665 (IDEA remains enabled despite being patented. This is because IDEA
666 is frequently required for interoperability, and there is no license
667 fee for non-commercial use. As before, "no-idea" can be used to
668 avoid this algorithm.)
672 *) Add processing of proxy certificates (see RFC 3820). This work was
673 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
674 EGEE (Enabling Grids for E-science in Europe).
677 *) RC4 performance overhaul on modern architectures/implementations, such
678 as Intel P4, IA-64 and AMD64.
681 *) New utility extract-section.pl. This can be used specify an alternative
682 section number in a pod file instead of having to treat each file as
683 a separate case in Makefile. This can be done by adding two lines to the
686 =for comment openssl_section:XXX
688 The blank line is mandatory.
692 *) New arguments -certform, -keyform and -pass for s_client and s_server
693 to allow alternative format key and certificate files and passphrase
697 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
698 update associated structures and add various utility functions.
700 Add new policy related verify parameters, include policy checking in
701 standard verify code. Enhance 'smime' application with extra parameters
702 to support policy checking and print out.
705 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
706 Nehemiah processors. These extensions support AES encryption in hardware
707 as well as RNG (though RNG support is currently disabled).
708 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
710 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
713 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
714 [Andy Polyakov and a number of other people]
716 *) Improved PowerPC platform support. Most notably BIGNUM assembler
717 implementation contributed by IBM.
718 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
720 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
721 exponent rather than 'unsigned long'. There is a corresponding change to
722 the new 'rsa_keygen' element of the RSA_METHOD structure.
723 [Jelte Jansen, Geoff Thorpe]
725 *) Functionality for creating the initial serial number file is now
726 moved from CA.pl to the 'ca' utility with a new option -create_serial.
728 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
729 number file to 1, which is bound to cause problems. To avoid
730 the problems while respecting compatibility between different 0.9.7
731 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
732 CA.pl for serial number initialization. With the new release 0.9.8,
733 we can fix the problem directly in the 'ca' utility.)
736 *) Reduced header interdepencies by declaring more opaque objects in
737 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
738 give fewer recursive includes, which could break lazy source code - so
739 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
740 developers should define this symbol when building and using openssl to
741 ensure they track the recommended behaviour, interfaces, [etc], but
742 backwards-compatible behaviour prevails when this isn't defined.
745 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
748 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
749 This will generate a random key of the appropriate length based on the
750 cipher context. The EVP_CIPHER can provide its own random key generation
751 routine to support keys of a specific form. This is used in the des and
752 3des routines to generate a key of the correct parity. Update S/MIME
753 code to use new functions and hence generate correct parity DES keys.
754 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
755 valid (weak or incorrect parity).
758 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
759 as looking them up. This is useful when the verified structure may contain
760 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
761 present unless the new PKCS7_NO_CRL flag is asserted.
764 *) Extend ASN1 oid configuration module. It now additionally accepts the
767 shortName = some long name, 1.2.3.4
770 *) Reimplemented the BN_CTX implementation. There is now no more static
771 limitation on the number of variables it can handle nor the depth of the
772 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
773 information can now expand as required, and rather than having a single
774 static array of bignums, BN_CTX now uses a linked-list of such arrays
775 allowing it to expand on demand whilst maintaining the usefulness of
779 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
780 to allow all RSA operations to function using a single BN_CTX.
783 *) Preliminary support for certificate policy evaluation and checking. This
784 is initially intended to pass the tests outlined in "Conformance Testing
785 of Relying Party Client Certificate Path Processing Logic" v1.07.
788 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
789 remained unused and not that useful. A variety of other little bignum
790 tweaks and fixes have also been made continuing on from the audit (see
794 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
795 associated ASN1, EVP and SSL functions and old ASN1 macros.
798 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
799 and this should never fail. So the return value from the use of
800 BN_set_word() (which can fail due to needless expansion) is now deprecated;
801 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
804 *) BN_CTX_get() should return zero-valued bignums, providing the same
805 initialised value as BN_new().
806 [Geoff Thorpe, suggested by Ulf Möller]
808 *) Support for inhibitAnyPolicy certificate extension.
811 *) An audit of the BIGNUM code is underway, for which debugging code is
812 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
813 is considered valid when processing BIGNUMs, and causes execution to
814 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
815 further steps are taken to deliberately pollute unused data in BIGNUM
816 structures to try and expose faulty code further on. For now, openssl will
817 (in its default mode of operation) continue to tolerate the inconsistent
818 forms that it has tolerated in the past, but authors and packagers should
819 consider trying openssl and their own applications when compiled with
820 these debugging symbols defined. It will help highlight potential bugs in
821 their own code, and will improve the test coverage for OpenSSL itself. At
822 some point, these tighter rules will become openssl's default to improve
823 maintainability, though the assert()s and other overheads will remain only
824 in debugging configurations. See bn.h for more details.
825 [Geoff Thorpe, Nils Larsch, Ulf Möller]
827 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
828 that can only be obtained through BN_CTX_new() (which implicitly
829 initialises it). The presence of this function only made it possible
830 to overwrite an existing structure (and cause memory leaks).
833 *) Because of the callback-based approach for implementing LHASH as a
834 template type, lh_insert() adds opaque objects to hash-tables and
835 lh_doall() or lh_doall_arg() are typically used with a destructor callback
836 to clean up those corresponding objects before destroying the hash table
837 (and losing the object pointers). So some over-zealous constifications in
838 LHASH have been relaxed so that lh_insert() does not take (nor store) the
839 objects as "const" and the lh_doall[_arg] callback wrappers are not
840 prototyped to have "const" restrictions on the object pointers they are
841 given (and so aren't required to cast them away any more).
844 *) The tmdiff.h API was so ugly and minimal that our own timing utility
845 (speed) prefers to use its own implementation. The two implementations
846 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
847 its object type properly exposed (MS_TM) instead of casting to/from "char
848 *". This may still change yet if someone realises MS_TM and "ms_time_***"
849 aren't necessarily the greatest nomenclatures - but this is what was used
850 internally to the implementation so I've used that for now.
853 *) Ensure that deprecated functions do not get compiled when
854 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
855 the self-tests were still using deprecated key-generation functions so
856 these have been updated also.
859 *) Reorganise PKCS#7 code to separate the digest location functionality
860 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
861 New function PKCS7_set_digest() to set the digest type for PKCS#7
862 digestedData type. Add additional code to correctly generate the
863 digestedData type and add support for this type in PKCS7 initialization
867 *) New function PKCS7_set0_type_other() this initializes a PKCS7
868 structure of type "other".
871 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
872 sure the loop does correctly stop and breaking ("division by zero")
873 modulus operations are not performed. The (pre-generated) prime
874 table crypto/bn/bn_prime.h was already correct, but it could not be
875 re-generated on some platforms because of the "division by zero"
876 situation in the script.
877 [Ralf S. Engelschall]
879 *) Update support for ECC-based TLS ciphersuites according to
880 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
881 SHA-1 now is only used for "small" curves (where the
882 representation of a field element takes up to 24 bytes); for
883 larger curves, the field element resulting from ECDH is directly
884 used as premaster secret.
885 [Douglas Stebila (Sun Microsystems Laboratories)]
887 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
888 curve secp160r1 to the tests.
889 [Douglas Stebila (Sun Microsystems Laboratories)]
891 *) Add the possibility to load symbols globally with DSO.
892 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
894 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
895 control of the error stack.
898 *) Add support for STORE in ENGINE.
901 *) Add the STORE type. The intention is to provide a common interface
902 to certificate and key stores, be they simple file-based stores, or
903 HSM-type store, or LDAP stores, or...
904 NOTE: The code is currently UNTESTED and isn't really used anywhere.
907 *) Add a generic structure called OPENSSL_ITEM. This can be used to
908 pass a list of arguments to any function as well as provide a way
909 for a function to pass data back to the caller.
912 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
913 works like BUF_strdup() but can be used to duplicate a portion of
914 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
918 *) Add the function sk_find_ex() which works like sk_find(), but will
919 return an index to an element even if an exact match couldn't be
920 found. The index is guaranteed to point at the element where the
921 searched-for key would be inserted to preserve sorting order.
924 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
925 takes an extra flags argument for optional functionality. Currently,
926 the following flags are defined:
928 OBJ_BSEARCH_VALUE_ON_NOMATCH
929 This one gets OBJ_bsearch_ex() to return a pointer to the first
930 element where the comparing function returns a negative or zero
933 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
934 This one gets OBJ_bsearch_ex() to return a pointer to the first
935 element where the comparing function returns zero. This is useful
936 if there are more than one element where the comparing function
940 *) Make it possible to create self-signed certificates with 'openssl ca'
941 in such a way that the self-signed certificate becomes part of the
942 CA database and uses the same mechanisms for serial number generation
943 as all other certificate signing. The new flag '-selfsign' enables
944 this functionality. Adapt CA.sh and CA.pl.in.
947 *) Add functionality to check the public key of a certificate request
948 against a given private. This is useful to check that a certificate
949 request can be signed by that key (self-signing).
952 *) Make it possible to have multiple active certificates with the same
953 subject in the CA index file. This is done only if the keyword
954 'unique_subject' is set to 'no' in the main CA section (default
955 if 'CA_default') of the configuration file. The value is saved
956 with the database itself in a separate index attribute file,
957 named like the index file with '.attr' appended to the name.
960 *) Generate muti valued AVAs using '+' notation in config files for
964 *) Support for nameConstraints certificate extension.
967 *) Support for policyConstraints certificate extension.
970 *) Support for policyMappings certificate extension.
973 *) Make sure the default DSA_METHOD implementation only uses its
974 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
975 and change its own handlers to be NULL so as to remove unnecessary
976 indirection. This lets alternative implementations fallback to the
977 default implementation more easily.
980 *) Support for directoryName in GeneralName related extensions
984 *) Make it possible to link applications using Makefile.shared.
985 Make that possible even when linking against static libraries!
988 *) Support for single pass processing for S/MIME signing. This now
989 means that S/MIME signing can be done from a pipe, in addition
990 cleartext signing (multipart/signed type) is effectively streaming
991 and the signed data does not need to be all held in memory.
993 This is done with a new flag PKCS7_STREAM. When this flag is set
994 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
995 is done after the data is output (and digests calculated) in
999 *) Add full support for -rpath/-R, both in shared libraries and
1000 applications, at least on the platforms where it's known how
1004 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1005 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1006 will now compute a table of multiples of the generator that
1007 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1008 faster (notably in the case of a single point multiplication,
1009 scalar * generator).
1010 [Nils Larsch, Bodo Moeller]
1012 *) IPv6 support for certificate extensions. The various extensions
1013 which use the IP:a.b.c.d can now take IPv6 addresses using the
1014 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1018 *) Added an ENGINE that implements RSA by performing private key
1019 exponentiations with the GMP library. The conversions to and from
1020 GMP's mpz_t format aren't optimised nor are any montgomery forms
1021 cached, and on x86 it appears OpenSSL's own performance has caught up.
1022 However there are likely to be other architectures where GMP could
1023 provide a boost. This ENGINE is not built in by default, but it can be
1024 specified at Configure time and should be accompanied by the necessary
1025 linker additions, eg;
1026 ./config -DOPENSSL_USE_GMP -lgmp
1029 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1030 testing availability of engines with "-t" - the old behaviour is
1031 produced by increasing the feature's verbosity with "-tt".
1034 *) ECDSA routines: under certain error conditions uninitialized BN objects
1035 could be freed. Solution: make sure initialization is performed early
1036 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1040 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1041 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1042 software implementations. For DSA and DH, parameter generation can
1043 also be overriden by providing the appropriate method callbacks.
1046 *) Change the "progress" mechanism used in key-generation and
1047 primality testing to functions that take a new BN_GENCB pointer in
1048 place of callback/argument pairs. The new API functions have "_ex"
1049 postfixes and the older functions are reimplemented as wrappers for
1050 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1051 declarations of the old functions to help (graceful) attempts to
1052 migrate to the new functions. Also, the new key-generation API
1053 functions operate on a caller-supplied key-structure and return
1054 success/failure rather than returning a key or NULL - this is to
1055 help make "keygen" another member function of RSA_METHOD etc.
1057 Example for using the new callback interface:
1059 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1063 BN_GENCB_set(&my_cb, my_callback, my_arg);
1065 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1066 /* For the meaning of a, b in calls to my_callback(), see the
1067 * documentation of the function that calls the callback.
1068 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1069 * my_callback should return 1 if it wants BN_is_prime_ex()
1070 * to continue, or 0 to stop.
1075 *) Change the ZLIB compression method to be stateful, and make it
1076 available to TLS with the number defined in
1077 draft-ietf-tls-compression-04.txt.
1080 *) Add the ASN.1 structures and functions for CertificatePair, which
1081 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1083 CertificatePair ::= SEQUENCE {
1084 forward [0] Certificate OPTIONAL,
1085 reverse [1] Certificate OPTIONAL,
1086 -- at least one of the pair shall be present -- }
1088 Also implement the PEM functions to read and write certificate
1089 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1091 This needed to be defined, mostly for the sake of the LDAP
1092 attribute crossCertificatePair, but may prove useful elsewhere as
1096 *) Make it possible to inhibit symlinking of shared libraries in
1097 Makefile.shared, for Cygwin's sake.
1100 *) Extend the BIGNUM API by creating a function
1101 void BN_set_negative(BIGNUM *a, int neg);
1102 and a macro that behave like
1103 int BN_is_negative(const BIGNUM *a);
1105 to avoid the need to access 'a->neg' directly in applications.
1108 *) Implement fast modular reduction for pseudo-Mersenne primes
1109 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1110 EC_GROUP_new_curve_GFp() will now automatically use this
1112 [Nils Larsch <nla@trustcenter.de>]
1114 *) Add new lock type (CRYPTO_LOCK_BN).
1117 *) Change the ENGINE framework to automatically load engines
1118 dynamically from specific directories unless they could be
1119 found to already be built in or loaded. Move all the
1120 current engines except for the cryptodev one to a new
1122 The engines in engines/ are built as shared libraries if
1123 the "shared" options was given to ./Configure or ./config.
1124 Otherwise, they are inserted in libcrypto.a.
1125 /usr/local/ssl/engines is the default directory for dynamic
1126 engines, but that can be overriden at configure time through
1127 the usual use of --prefix and/or --openssldir, and at run
1128 time with the environment variable OPENSSL_ENGINES.
1129 [Geoff Thorpe and Richard Levitte]
1131 *) Add Makefile.shared, a helper makefile to build shared
1132 libraries. Addapt Makefile.org.
1135 *) Add version info to Win32 DLLs.
1136 [Peter 'Luna' Runestig" <peter@runestig.com>]
1138 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1139 can be added using this API to created arbitrary PKCS#12
1140 files while avoiding the low level API.
1142 New options to PKCS12_create(), key or cert can be NULL and
1143 will then be omitted from the output file. The encryption
1144 algorithm NIDs can be set to -1 for no encryption, the mac
1145 iteration count can be set to 0 to omit the mac.
1147 Enhance pkcs12 utility by making the -nokeys and -nocerts
1148 options work when creating a PKCS#12 file. New option -nomac
1149 to omit the mac, NONE can be set for an encryption algorithm.
1150 New code is modified to use the enhanced PKCS12_create()
1151 instead of the low level API.
1154 *) Extend ASN1 encoder to support indefinite length constructed
1155 encoding. This can output sequences tags and octet strings in
1156 this form. Modify pk7_asn1.c to support indefinite length
1157 encoding. This is experimental and needs additional code to
1158 be useful, such as an ASN1 bio and some enhanced streaming
1161 Extend template encode functionality so that tagging is passed
1162 down to the template encoder.
1165 *) Let 'openssl req' fail if an argument to '-newkey' is not
1166 recognized instead of using RSA as a default.
1169 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1170 As these are not official, they are not included in "ALL";
1171 the "ECCdraft" ciphersuite group alias can be used to select them.
1172 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1174 *) Add ECDH engine support.
1175 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1177 *) Add ECDH in new directory crypto/ecdh/.
1178 [Douglas Stebila (Sun Microsystems Laboratories)]
1180 *) Let BN_rand_range() abort with an error after 100 iterations
1181 without success (which indicates a broken PRNG).
1184 *) Change BN_mod_sqrt() so that it verifies that the input value
1185 is really the square of the return value. (Previously,
1186 BN_mod_sqrt would show GIGO behaviour.)
1189 *) Add named elliptic curves over binary fields from X9.62, SECG,
1190 and WAP/WTLS; add OIDs that were still missing.
1192 [Sheueling Chang Shantz and Douglas Stebila
1193 (Sun Microsystems Laboratories)]
1195 *) Extend the EC library for elliptic curves over binary fields
1196 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1199 EC_GF2m_simple_method
1203 EC_GROUP_new_curve_GF2m
1204 EC_GROUP_set_curve_GF2m
1205 EC_GROUP_get_curve_GF2m
1206 EC_POINT_set_affine_coordinates_GF2m
1207 EC_POINT_get_affine_coordinates_GF2m
1208 EC_POINT_set_compressed_coordinates_GF2m
1210 Point compression for binary fields is disabled by default for
1211 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1214 As binary polynomials are represented as BIGNUMs, various members
1215 of the EC_GROUP and EC_POINT data structures can be shared
1216 between the implementations for prime fields and binary fields;
1217 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1218 are essentially identical to their ..._GFp counterparts.
1219 (For simplicity, the '..._GFp' prefix has been dropped from
1220 various internal method names.)
1222 An internal 'field_div' method (similar to 'field_mul' and
1223 'field_sqr') has been added; this is used only for binary fields.
1225 [Sheueling Chang Shantz and Douglas Stebila
1226 (Sun Microsystems Laboratories)]
1228 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1229 through methods ('mul', 'precompute_mult').
1231 The generic implementations (now internally called 'ec_wNAF_mul'
1232 and 'ec_wNAF_precomputed_mult') remain the default if these
1233 methods are undefined.
1235 [Sheueling Chang Shantz and Douglas Stebila
1236 (Sun Microsystems Laboratories)]
1238 *) New function EC_GROUP_get_degree, which is defined through
1239 EC_METHOD. For curves over prime fields, this returns the bit
1240 length of the modulus.
1242 [Sheueling Chang Shantz and Douglas Stebila
1243 (Sun Microsystems Laboratories)]
1245 *) New functions EC_GROUP_dup, EC_POINT_dup.
1246 (These simply call ..._new and ..._copy).
1248 [Sheueling Chang Shantz and Douglas Stebila
1249 (Sun Microsystems Laboratories)]
1251 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1252 Polynomials are represented as BIGNUMs (where the sign bit is not
1253 used) in the following functions [macros]:
1256 BN_GF2m_sub [= BN_GF2m_add]
1257 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1258 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1259 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1261 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1262 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1263 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1264 BN_GF2m_cmp [= BN_ucmp]
1266 (Note that only the 'mod' functions are actually for fields GF(2^m).
1267 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1269 For some functions, an the irreducible polynomial defining a
1270 field can be given as an 'unsigned int[]' with strictly
1271 decreasing elements giving the indices of those bits that are set;
1272 i.e., p[] represents the polynomial
1273 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1275 p[0] > p[1] > ... > p[k] = 0.
1276 This applies to the following functions:
1281 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1282 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1284 BN_GF2m_mod_sqrt_arr
1285 BN_GF2m_mod_solve_quad_arr
1289 Conversion can be performed by the following functions:
1294 bntest.c has additional tests for binary polynomial arithmetic.
1296 Two implementations for BN_GF2m_mod_div() are available.
1297 The default algorithm simply uses BN_GF2m_mod_inv() and
1298 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1299 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1300 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1302 [Sheueling Chang Shantz and Douglas Stebila
1303 (Sun Microsystems Laboratories)]
1305 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1306 functionality is disabled at compile-time.
1307 [Douglas Stebila <douglas.stebila@sun.com>]
1309 *) Change default behaviour of 'openssl asn1parse' so that more
1310 information is visible when viewing, e.g., a certificate:
1312 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1313 mode the content of non-printable OCTET STRINGs is output in a
1314 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1315 avoid the appearance of a printable string.
1316 [Nils Larsch <nla@trustcenter.de>]
1318 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1320 EC_GROUP_set_asn1_flag()
1321 EC_GROUP_get_asn1_flag()
1322 EC_GROUP_set_point_conversion_form()
1323 EC_GROUP_get_point_conversion_form()
1324 These control ASN1 encoding details:
1325 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1326 has been set to OPENSSL_EC_NAMED_CURVE.
1327 - Points are encoded in uncompressed form by default; options for
1328 asn1_for are as for point2oct, namely
1329 POINT_CONVERSION_COMPRESSED
1330 POINT_CONVERSION_UNCOMPRESSED
1331 POINT_CONVERSION_HYBRID
1333 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1336 EC_GROUP_get0_seed()
1337 EC_GROUP_get_seed_len()
1338 This is used only for ASN1 purposes (so far).
1339 [Nils Larsch <nla@trustcenter.de>]
1341 *) Add 'field_type' member to EC_METHOD, which holds the NID
1342 of the appropriate field type OID. The new function
1343 EC_METHOD_get_field_type() returns this value.
1344 [Nils Larsch <nla@trustcenter.de>]
1349 EC_POINT_point2hex()
1350 EC_POINT_hex2point()
1351 providing useful interfaces to EC_POINT_point2oct() and
1352 EC_POINT_oct2point().
1353 [Nils Larsch <nla@trustcenter.de>]
1355 *) Change internals of the EC library so that the functions
1356 EC_GROUP_set_generator()
1357 EC_GROUP_get_generator()
1358 EC_GROUP_get_order()
1359 EC_GROUP_get_cofactor()
1360 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1361 to methods, which would lead to unnecessary code duplication when
1362 adding different types of curves.
1363 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1365 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1366 arithmetic, and such that modified wNAFs are generated
1367 (which avoid length expansion in many cases).
1370 *) Add a function EC_GROUP_check_discriminant() (defined via
1371 EC_METHOD) that verifies that the curve discriminant is non-zero.
1373 Add a function EC_GROUP_check() that makes some sanity tests
1374 on a EC_GROUP, its generator and order. This includes
1375 EC_GROUP_check_discriminant().
1376 [Nils Larsch <nla@trustcenter.de>]
1378 *) Add ECDSA in new directory crypto/ecdsa/.
1380 Add applications 'openssl ecparam' and 'openssl ecdsa'
1381 (these are based on 'openssl dsaparam' and 'openssl dsa').
1383 ECDSA support is also included in various other files across the
1384 library. Most notably,
1385 - 'openssl req' now has a '-newkey ecdsa:file' option;
1386 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1387 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1388 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1389 them suitable for ECDSA where domain parameters must be
1390 extracted before the specific public key;
1391 - ECDSA engine support has been added.
1392 [Nils Larsch <nla@trustcenter.de>]
1394 *) Include some named elliptic curves, and add OIDs from X9.62,
1395 SECG, and WAP/WTLS. Each curve can be obtained from the new
1397 EC_GROUP_new_by_curve_name(),
1398 and the list of available named curves can be obtained with
1399 EC_get_builtin_curves().
1400 Also add a 'curve_name' member to EC_GROUP objects, which can be
1402 EC_GROUP_set_curve_name()
1403 EC_GROUP_get_curve_name()
1404 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1406 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1407 was actually never needed) and in BN_mul(). The removal in BN_mul()
1408 required a small change in bn_mul_part_recursive() and the addition
1409 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1410 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1411 bn_sub_words() and bn_add_words() except they take arrays with
1415 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1417 *) Introduce limits to prevent malicious keys being able to
1418 cause a denial of service. (CVE-2006-2940)
1419 [Steve Henson, Bodo Moeller]
1421 *) Fix ASN.1 parsing of certain invalid structures that can result
1422 in a denial of service. (CVE-2006-2937) [Steve Henson]
1424 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1425 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1427 *) Fix SSL client code which could crash if connecting to a
1428 malicious SSLv2 server. (CVE-2006-4343)
1429 [Tavis Ormandy and Will Drewry, Google Security Team]
1431 *) Change ciphersuite string processing so that an explicit
1432 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1433 will no longer include "AES128-SHA"), and any other similar
1434 ciphersuite (same bitmap) from *other* protocol versions (so that
1435 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1436 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1437 changes from 0.9.8b and 0.9.8d.
1440 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1442 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1443 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1445 *) Change the Unix randomness entropy gathering to use poll() when
1446 possible instead of select(), since the latter has some
1447 undesirable limitations.
1448 [Darryl Miles via Richard Levitte and Bodo Moeller]
1450 *) Disable rogue ciphersuites:
1452 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1453 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1454 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1456 The latter two were purportedly from
1457 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1460 Also deactive the remaining ciphersuites from
1461 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1462 unofficial, and the ID has long expired.
1465 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1466 dual-core machines) and other potential thread-safety issues.
1469 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1471 *) Adapt fipsld and the build system to link against the validated FIPS
1472 module in FIPS mode.
1475 *) Fixes for VC++ 2005 build under Windows.
1478 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1479 from a Windows bash shell such as MSYS. It is autodetected from the
1480 "config" script when run from a VC++ environment. Modify standard VC++
1481 build to use fipscanister.o from the GNU make build.
1484 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1486 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1487 The value now differs depending on if you build for FIPS or not.
1488 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1489 safely run with a non-FIPSed libcrypto, as it may crash because of
1490 the difference induced by this change.
1493 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1495 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1496 (part of SSL_OP_ALL). This option used to disable the
1497 countermeasure against man-in-the-middle protocol-version
1498 rollback in the SSL 2.0 server implementation, which is a bad
1499 idea. (CVE-2005-2969)
1501 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1502 for Information Security, National Institute of Advanced Industrial
1503 Science and Technology [AIST], Japan)]
1505 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1506 mainly for FIPS compliance and not fully integrated at this stage.
1509 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1510 the exponentiation using a fixed-length exponent. (Otherwise,
1511 the information leaked through timing could expose the secret key
1512 after many signatures; cf. Bleichenbacher's attack on DSA with
1516 *) Make a new fixed-window mod_exp implementation the default for
1517 RSA, DSA, and DH private-key operations so that the sequence of
1518 squares and multiplies and the memory access pattern are
1519 independent of the particular secret key. This will mitigate
1520 cache-timing and potential related attacks.
1522 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1523 and this is automatically used by BN_mod_exp_mont() if the new flag
1524 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1525 will use this BN flag for private exponents unless the flag
1526 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1527 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1529 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1531 *) Change the client implementation for SSLv23_method() and
1532 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1533 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1534 (Previously, the SSL 2.0 backwards compatible Client Hello
1535 message format would be used even with SSL_OP_NO_SSLv2.)
1538 *) Add support for smime-type MIME parameter in S/MIME messages which some
1542 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1543 a threadsafe manner. Modify rsa code to use new function and add calls
1544 to dsa and dh code (which had race conditions before).
1547 *) Include the fixed error library code in the C error file definitions
1548 instead of fixing them up at runtime. This keeps the error code
1549 structures constant.
1552 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1554 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1557 *) Fixes for newer kerberos headers. NB: the casts are needed because
1558 the 'length' field is signed on one version and unsigned on another
1559 with no (?) obvious way to tell the difference, without these VC++
1560 complains. Also the "definition" of FAR (blank) is no longer included
1561 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1562 some needed definitions.
1565 *) Undo Cygwin change.
1568 *) Added support for proxy certificates according to RFC 3820.
1569 Because they may be a security thread to unaware applications,
1570 they must be explicitely allowed in run-time. See
1571 docs/HOWTO/proxy_certificates.txt for further information.
1574 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1576 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1577 server and client random values. Previously
1578 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1579 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1581 This change has negligible security impact because:
1583 1. Server and client random values still have 24 bytes of pseudo random
1586 2. Server and client random values are sent in the clear in the initial
1589 3. The master secret is derived using the premaster secret (48 bytes in
1590 size for static RSA ciphersuites) as well as client server and random
1593 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1596 [Stephen Henson, reported by UK NISCC]
1598 *) Use Windows randomness collection on Cygwin.
1601 *) Fix hang in EGD/PRNGD query when communication socket is closed
1602 prematurely by EGD/PRNGD.
1603 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1605 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1608 *) Back-port of selected performance improvements from development
1609 branch, as well as improved support for PowerPC platforms.
1612 *) Add lots of checks for memory allocation failure, error codes to indicate
1613 failure and freeing up memory if a failure occurs.
1614 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1616 *) Add new -passin argument to dgst.
1619 *) Perform some character comparisons of different types in X509_NAME_cmp:
1620 this is needed for some certificates that reencode DNs into UTF8Strings
1621 (in violation of RFC3280) and can't or wont issue name rollover
1625 *) Make an explicit check during certificate validation to see that
1626 the CA setting in each certificate on the chain is correct. As a
1627 side effect always do the following basic checks on extensions,
1628 not just when there's an associated purpose to the check:
1630 - if there is an unhandled critical extension (unless the user
1631 has chosen to ignore this fault)
1632 - if the path length has been exceeded (if one is set at all)
1633 - that certain extensions fit the associated purpose (if one has
1637 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1639 *) Avoid a race condition when CRLs are checked in a multi threaded
1640 environment. This would happen due to the reordering of the revoked
1641 entries during signature checking and serial number lookup. Now the
1642 encoding is cached and the serial number sort performed under a lock.
1643 Add new STACK function sk_is_sorted().
1646 *) Add Delta CRL to the extension code.
1649 *) Various fixes to s3_pkt.c so alerts are sent properly.
1650 [David Holmes <d.holmes@f5.com>]
1652 *) Reduce the chances of duplicate issuer name and serial numbers (in
1653 violation of RFC3280) using the OpenSSL certificate creation utilities.
1654 This is done by creating a random 64 bit value for the initial serial
1655 number when a serial number file is created or when a self signed
1656 certificate is created using 'openssl req -x509'. The initial serial
1657 number file is created using 'openssl x509 -next_serial' in CA.pl
1658 rather than being initialized to 1.
1661 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1663 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1664 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1665 [Joe Orton, Steve Henson]
1667 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1669 [Joe Orton, Steve Henson]
1671 *) Make it possible to have multiple active certificates with the same
1672 subject in the CA index file. This is done only if the keyword
1673 'unique_subject' is set to 'no' in the main CA section (default
1674 if 'CA_default') of the configuration file. The value is saved
1675 with the database itself in a separate index attribute file,
1676 named like the index file with '.attr' appended to the name.
1679 *) X509 verify fixes. Disable broken certificate workarounds when
1680 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1681 keyUsage extension present. Don't accept CRLs with unhandled critical
1682 extensions: since verify currently doesn't process CRL extensions this
1683 rejects a CRL with *any* critical extensions. Add new verify error codes
1687 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1688 A clarification of RFC2560 will require the use of OCTET STRINGs and
1689 some implementations cannot handle the current raw format. Since OpenSSL
1690 copies and compares OCSP nonces as opaque blobs without any attempt at
1691 parsing them this should not create any compatibility issues.
1694 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1695 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1696 this HMAC (and other) operations are several times slower than OpenSSL
1700 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1701 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1703 *) Use the correct content when signing type "other".
1706 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1708 *) Fix various bugs revealed by running the NISCC test suite:
1710 Stop out of bounds reads in the ASN1 code when presented with
1711 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1713 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1715 If verify callback ignores invalid public key errors don't try to check
1716 certificate signature with the NULL public key.
1720 *) New -ignore_err option in ocsp application to stop the server
1721 exiting on the first error in a request.
1724 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1725 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1729 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1730 extra data after the compression methods not only for TLS 1.0
1731 but also for SSL 3.0 (as required by the specification).
1732 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1734 *) Change X509_certificate_type() to mark the key as exported/exportable
1735 when it's 512 *bits* long, not 512 bytes.
1738 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1739 blocks during encryption.
1742 *) Various fixes to base64 BIO and non blocking I/O. On write
1743 flushes were not handled properly if the BIO retried. On read
1744 data was not being buffered properly and had various logic bugs.
1745 This also affects blocking I/O when the data being decoded is a
1749 *) Various S/MIME bugfixes and compatibility changes:
1750 output correct application/pkcs7 MIME type if
1751 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1752 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1753 of files as .eml work). Correctly handle very long lines in MIME
1757 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1759 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1760 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1761 a protocol version number mismatch like a decryption error
1762 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1765 *) Turn on RSA blinding by default in the default implementation
1766 to avoid a timing attack. Applications that don't want it can call
1767 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1768 They would be ill-advised to do so in most cases.
1769 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1771 *) Change RSA blinding code so that it works when the PRNG is not
1772 seeded (in this case, the secret RSA exponent is abused as
1773 an unpredictable seed -- if it is not unpredictable, there
1774 is no point in blinding anyway). Make RSA blinding thread-safe
1775 by remembering the creator's thread ID in rsa->blinding and
1776 having all other threads use local one-time blinding factors
1777 (this requires more computation than sharing rsa->blinding, but
1778 avoids excessive locking; and if an RSA object is not shared
1779 between threads, blinding will still be very fast).
1782 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1783 ENGINE as defaults for all supported algorithms irrespective of
1784 the 'flags' parameter. 'flags' is now honoured, so applications
1785 should make sure they are passing it correctly.
1788 *) Target "mingw" now allows native Windows code to be generated in
1789 the Cygwin environment as well as with the MinGW compiler.
1792 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1794 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1795 via timing by performing a MAC computation even if incorrrect
1796 block cipher padding has been found. This is a countermeasure
1797 against active attacks where the attacker has to distinguish
1798 between bad padding and a MAC verification error. (CVE-2003-0078)
1800 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1801 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1802 Martin Vuagnoux (EPFL, Ilion)]
1804 *) Make the no-err option work as intended. The intention with no-err
1805 is not to have the whole error stack handling routines removed from
1806 libcrypto, it's only intended to remove all the function name and
1807 reason texts, thereby removing some of the footprint that may not
1808 be interesting if those errors aren't displayed anyway.
1810 NOTE: it's still possible for any application or module to have it's
1811 own set of error texts inserted. The routines are there, just not
1812 used by default when no-err is given.
1815 *) Add support for FreeBSD on IA64.
1816 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1818 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1819 Kerberos function mit_des_cbc_cksum(). Before this change,
1820 the value returned by DES_cbc_cksum() was like the one from
1821 mit_des_cbc_cksum(), except the bytes were swapped.
1822 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1824 *) Allow an application to disable the automatic SSL chain building.
1825 Before this a rather primitive chain build was always performed in
1826 ssl3_output_cert_chain(): an application had no way to send the
1827 correct chain if the automatic operation produced an incorrect result.
1829 Now the chain builder is disabled if either:
1831 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1833 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1835 The reasoning behind this is that an application would not want the
1836 auto chain building to take place if extra chain certificates are
1837 present and it might also want a means of sending no additional
1838 certificates (for example the chain has two certificates and the
1842 *) Add the possibility to build without the ENGINE framework.
1843 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1845 *) Under Win32 gmtime() can return NULL: check return value in
1846 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1849 *) DSA routines: under certain error conditions uninitialized BN objects
1850 could be freed. Solution: make sure initialization is performed early
1851 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1852 Nils Larsch <nla@trustcenter.de> via PR#459)
1855 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1856 checked on reconnect on the client side, therefore session resumption
1857 could still fail with a "ssl session id is different" error. This
1858 behaviour is masked when SSL_OP_ALL is used due to
1859 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1860 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1861 followup to PR #377.
1864 *) IA-32 assembler support enhancements: unified ELF targets, support
1865 for SCO/Caldera platforms, fix for Cygwin shared build.
1868 *) Add support for FreeBSD on sparc64. As a consequence, support for
1869 FreeBSD on non-x86 processors is separate from x86 processors on
1870 the config script, much like the NetBSD support.
1871 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1873 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1875 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1878 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1879 code (06) was taken as the first octet of the session ID and the last
1880 octet was ignored consequently. As a result SSLv2 client side session
1881 caching could not have worked due to the session ID mismatch between
1883 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1887 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1888 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1892 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1893 seems that in spite of existing for more than a year, many application
1894 author have done nothing to provide the necessary callbacks, which
1895 means that this particular engine will not work properly anywhere.
1896 This is a very unfortunate situation which forces us, in the name
1897 of usability, to give the hw_ncipher.c a static lock, which is part
1899 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1900 appear in 0.9.8 or later. We EXPECT application authors to have
1901 dealt properly with this when 0.9.8 is released (unless we actually
1902 make such changes in the libcrypto locking code that changes will
1903 have to be made anyway).
1906 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1907 octets have been read, EOF or an error occurs. Without this change
1908 some truncated ASN1 structures will not produce an error.
1911 *) Disable Heimdal support, since it hasn't been fully implemented.
1912 Still give the possibility to force the use of Heimdal, but with
1913 warnings and a request that patches get sent to openssl-dev.
1916 *) Add the VC-CE target, introduce the WINCE sysname, and add
1917 INSTALL.WCE and appropriate conditionals to make it build.
1918 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1920 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1921 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1922 edit numbers of the version.
1923 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1925 *) Introduce safe string copy and catenation functions
1926 (BUF_strlcpy() and BUF_strlcat()).
1927 [Ben Laurie (CHATS) and Richard Levitte]
1929 *) Avoid using fixed-size buffers for one-line DNs.
1930 [Ben Laurie (CHATS)]
1932 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1933 resizing buffers containing secrets, and use where appropriate.
1934 [Ben Laurie (CHATS)]
1936 *) Avoid using fixed size buffers for configuration file location.
1937 [Ben Laurie (CHATS)]
1939 *) Avoid filename truncation for various CA files.
1940 [Ben Laurie (CHATS)]
1942 *) Use sizeof in preference to magic numbers.
1943 [Ben Laurie (CHATS)]
1945 *) Avoid filename truncation in cert requests.
1946 [Ben Laurie (CHATS)]
1948 *) Add assertions to check for (supposedly impossible) buffer
1950 [Ben Laurie (CHATS)]
1952 *) Don't cache truncated DNS entries in the local cache (this could
1953 potentially lead to a spoofing attack).
1954 [Ben Laurie (CHATS)]
1956 *) Fix various buffers to be large enough for hex/decimal
1957 representations in a platform independent manner.
1958 [Ben Laurie (CHATS)]
1960 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1961 resizing buffers containing secrets, and use where appropriate.
1962 [Ben Laurie (CHATS)]
1964 *) Add BIO_indent() to avoid much slightly worrying code to do
1966 [Ben Laurie (CHATS)]
1968 *) Convert sprintf()/BIO_puts() to BIO_printf().
1969 [Ben Laurie (CHATS)]
1971 *) buffer_gets() could terminate with the buffer only half
1973 [Ben Laurie (CHATS)]
1975 *) Add assertions to prevent user-supplied crypto functions from
1976 overflowing internal buffers by having large block sizes, etc.
1977 [Ben Laurie (CHATS)]
1979 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1981 [Ben Laurie (CHATS)]
1983 *) Eliminate unused copy of key in RC4.
1984 [Ben Laurie (CHATS)]
1986 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1987 [Ben Laurie (CHATS)]
1989 *) Fix off-by-one error in EGD path.
1990 [Ben Laurie (CHATS)]
1992 *) If RANDFILE path is too long, ignore instead of truncating.
1993 [Ben Laurie (CHATS)]
1995 *) Eliminate unused and incorrectly sized X.509 structure
1997 [Ben Laurie (CHATS)]
1999 *) Eliminate unused and dangerous function knumber().
2000 [Ben Laurie (CHATS)]
2002 *) Eliminate unused and dangerous structure, KSSL_ERR.
2003 [Ben Laurie (CHATS)]
2005 *) Protect against overlong session ID context length in an encoded
2006 session object. Since these are local, this does not appear to be
2008 [Ben Laurie (CHATS)]
2010 *) Change from security patch (see 0.9.6e below) that did not affect
2011 the 0.9.6 release series:
2013 Remote buffer overflow in SSL3 protocol - an attacker could
2014 supply an oversized master key in Kerberos-enabled versions.
2016 [Ben Laurie (CHATS)]
2018 *) Change the SSL kerb5 codes to match RFC 2712.
2021 *) Make -nameopt work fully for req and add -reqopt switch.
2022 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2024 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2025 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2027 *) Make sure tests can be performed even if the corresponding algorithms
2028 have been removed entirely. This was also the last step to make
2029 OpenSSL compilable with DJGPP under all reasonable conditions.
2030 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2032 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2033 to allow version independent disabling of normally unselected ciphers,
2034 which may be activated as a side-effect of selecting a single cipher.
2036 (E.g., cipher list string "RSA" enables ciphersuites that are left
2037 out of "ALL" because they do not provide symmetric encryption.
2038 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2039 [Lutz Jaenicke, Bodo Moeller]
2041 *) Add appropriate support for separate platform-dependent build
2042 directories. The recommended way to make a platform-dependent
2043 build directory is the following (tested on Linux), maybe with
2046 # Place yourself outside of the OpenSSL source tree. In
2047 # this example, the environment variable OPENSSL_SOURCE
2048 # is assumed to contain the absolute OpenSSL source directory.
2049 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2050 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2051 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2052 mkdir -p `dirname $F`
2053 ln -s $OPENSSL_SOURCE/$F $F
2056 To be absolutely sure not to disturb the source tree, a "make clean"
2057 is a good thing. If it isn't successfull, don't worry about it,
2058 it probably means the source directory is very clean.
2061 *) Make sure any ENGINE control commands make local copies of string
2062 pointers passed to them whenever necessary. Otherwise it is possible
2063 the caller may have overwritten (or deallocated) the original string
2064 data when a later ENGINE operation tries to use the stored values.
2065 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2067 *) Improve diagnostics in file reading and command-line digests.
2068 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2070 *) Add AES modes CFB and OFB to the object database. Correct an
2071 error in AES-CFB decryption.
2074 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2075 allows existing EVP_CIPHER_CTX structures to be reused after
2076 calling EVP_*Final(). This behaviour is used by encryption
2077 BIOs and some applications. This has the side effect that
2078 applications must explicitly clean up cipher contexts with
2079 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2082 *) Check the values of dna and dnb in bn_mul_recursive before calling
2083 bn_mul_comba (a non zero value means the a or b arrays do not contain
2084 n2 elements) and fallback to bn_mul_normal if either is not zero.
2087 *) Fix escaping of non-ASCII characters when using the -subj option
2088 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2091 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2092 form for "surname", serialNumber has no short form.
2093 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2094 therefore remove "mail" short name for "internet 7".
2095 The OID for unique identifiers in X509 certificates is
2096 x500UniqueIdentifier, not uniqueIdentifier.
2097 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2100 *) Add an "init" command to the ENGINE config module and auto initialize
2101 ENGINEs. Without any "init" command the ENGINE will be initialized
2102 after all ctrl commands have been executed on it. If init=1 the
2103 ENGINE is initailized at that point (ctrls before that point are run
2104 on the uninitialized ENGINE and after on the initialized one). If
2105 init=0 then the ENGINE will not be iniatialized at all.
2108 *) Fix the 'app_verify_callback' interface so that the user-defined
2109 argument is actually passed to the callback: In the
2110 SSL_CTX_set_cert_verify_callback() prototype, the callback
2111 declaration has been changed from
2114 int (*cb)(X509_STORE_CTX *,void *);
2115 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2116 i=s->ctx->app_verify_callback(&ctx)
2117 has been changed into
2118 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2120 To update applications using SSL_CTX_set_cert_verify_callback(),
2121 a dummy argument can be added to their callback functions.
2122 [D. K. Smetters <smetters@parc.xerox.com>]
2124 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2125 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2127 *) Add and OPENSSL_LOAD_CONF define which will cause
2128 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2129 This allows older applications to transparently support certain
2130 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2131 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2132 load the config file and OPENSSL_add_all_algorithms_conf() which will
2133 always load it have also been added.
2136 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2137 Adjust NIDs and EVP layer.
2138 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2140 *) Config modules support in openssl utility.
2142 Most commands now load modules from the config file,
2143 though in a few (such as version) this isn't done
2144 because it couldn't be used for anything.
2146 In the case of ca and req the config file used is
2147 the same as the utility itself: that is the -config
2148 command line option can be used to specify an
2152 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2153 use "openssl_conf" if filename is NULL use default openssl config file.
2156 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2157 config section name. Add a new flag to tolerate a missing config file
2158 and move code to CONF_modules_load_file().
2161 *) Support for crypto accelerator cards from Accelerated Encryption
2162 Processing, www.aep.ie. (Use engine 'aep')
2163 The support was copied from 0.9.6c [engine] and adapted/corrected
2164 to work with the new engine framework.
2165 [AEP Inc. and Richard Levitte]
2167 *) Support for SureWare crypto accelerator cards from Baltimore
2168 Technologies. (Use engine 'sureware')
2169 The support was copied from 0.9.6c [engine] and adapted
2170 to work with the new engine framework.
2173 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2174 make the newer ENGINE framework commands for the CHIL engine work.
2175 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2177 *) Make it possible to produce shared libraries on ReliantUNIX.
2178 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2180 *) Add the configuration target debug-linux-ppro.
2181 Make 'openssl rsa' use the general key loading routines
2182 implemented in apps.c, and make those routines able to
2183 handle the key format FORMAT_NETSCAPE and the variant
2185 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2187 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2188 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2190 *) Add -keyform to rsautl, and document -engine.
2191 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2193 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2194 BIO_R_NO_SUCH_FILE error code rather than the generic
2195 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2198 *) Add new functions
2200 ERR_peek_last_error_line
2201 ERR_peek_last_error_line_data.
2202 These are similar to
2205 ERR_peek_error_line_data,
2206 but report on the latest error recorded rather than the first one
2207 still in the error queue.
2208 [Ben Laurie, Bodo Moeller]
2210 *) default_algorithms option in ENGINE config module. This allows things
2212 default_algorithms = ALL
2213 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2216 *) Prelminary ENGINE config module.
2219 *) New experimental application configuration code.
2222 *) Change the AES code to follow the same name structure as all other
2223 symmetric ciphers, and behave the same way. Move everything to
2224 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2225 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2227 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2228 [Ben Laurie and Theo de Raadt]
2230 *) Add option to output public keys in req command.
2231 [Massimiliano Pala madwolf@openca.org]
2233 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2234 (up to about 10% better than before for P-192 and P-224).
2237 *) New functions/macros
2239 SSL_CTX_set_msg_callback(ctx, cb)
2240 SSL_CTX_set_msg_callback_arg(ctx, arg)
2241 SSL_set_msg_callback(ssl, cb)
2242 SSL_set_msg_callback_arg(ssl, arg)
2244 to request calling a callback function
2246 void cb(int write_p, int version, int content_type,
2247 const void *buf, size_t len, SSL *ssl, void *arg)
2249 whenever a protocol message has been completely received
2250 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2251 protocol version according to which the SSL library interprets
2252 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2253 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2254 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2255 specification (change_cipher_spec(20), alert(21), handshake(22)).
2256 'buf' and 'len' point to the actual message, 'ssl' to the
2257 SSL object, and 'arg' is the application-defined value set by
2258 SSL[_CTX]_set_msg_callback_arg().
2260 'openssl s_client' and 'openssl s_server' have new '-msg' options
2261 to enable a callback that displays all protocol messages.
2264 *) Change the shared library support so shared libraries are built as
2265 soon as the corresponding static library is finished, and thereby get
2266 openssl and the test programs linked against the shared library.
2267 This still only happens when the keyword "shard" has been given to
2268 the configuration scripts.
2270 NOTE: shared library support is still an experimental thing, and
2271 backward binary compatibility is still not guaranteed.
2272 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2274 *) Add support for Subject Information Access extension.
2275 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2277 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2278 additional bytes when new memory had to be allocated, not just
2279 when reusing an existing buffer.
2282 *) New command line and configuration option 'utf8' for the req command.
2283 This allows field values to be specified as UTF8 strings.
2286 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2287 runs for the former and machine-readable output for the latter.
2290 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2291 of the e-mail address in the DN (i.e., it will go into a certificate
2292 extension only). The new configuration file option 'email_in_dn = no'
2293 has the same effect.
2294 [Massimiliano Pala madwolf@openca.org]
2296 *) Change all functions with names starting with des_ to be starting
2297 with DES_ instead. Add wrappers that are compatible with libdes,
2298 but are named _ossl_old_des_*. Finally, add macros that map the
2299 des_* symbols to the corresponding _ossl_old_des_* if libdes
2300 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2301 desired, the des_* symbols will be mapped to DES_*, with one
2304 Since we provide two compatibility mappings, the user needs to
2305 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2306 compatibility is desired. The default (i.e., when that macro
2307 isn't defined) is OpenSSL 0.9.6c compatibility.
2309 There are also macros that enable and disable the support of old
2310 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2311 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2312 are defined, the default will apply: to support the old des routines.
2314 In either case, one must include openssl/des.h to get the correct
2315 definitions. Do not try to just include openssl/des_old.h, that
2318 NOTE: This is a major break of an old API into a new one. Software
2319 authors are encouraged to switch to the DES_ style functions. Some
2320 time in the future, des_old.h and the libdes compatibility functions
2321 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2322 default), and then completely removed.
2325 *) Test for certificates which contain unsupported critical extensions.
2326 If such a certificate is found during a verify operation it is
2327 rejected by default: this behaviour can be overridden by either
2328 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2329 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2330 X509_supported_extension() has also been added which returns 1 if a
2331 particular extension is supported.
2334 *) Modify the behaviour of EVP cipher functions in similar way to digests
2335 to retain compatibility with existing code.
2338 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2339 compatibility with existing code. In particular the 'ctx' parameter does
2340 not have to be to be initialized before the call to EVP_DigestInit() and
2341 it is tidied up after a call to EVP_DigestFinal(). New function
2342 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2343 EVP_MD_CTX_copy() changed to not require the destination to be
2344 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2345 requires the destination to be valid.
2347 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2348 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2351 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2352 so that complete 'Handshake' protocol structures are kept in memory
2353 instead of overwriting 'msg_type' and 'length' with 'body' data.
2356 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2357 [Massimo Santin via Richard Levitte]
2359 *) Major restructuring to the underlying ENGINE code. This includes
2360 reduction of linker bloat, separation of pure "ENGINE" manipulation
2361 (initialisation, etc) from functionality dealing with implementations
2362 of specific crypto iterfaces. This change also introduces integrated
2363 support for symmetric ciphers and digest implementations - so ENGINEs
2364 can now accelerate these by providing EVP_CIPHER and EVP_MD
2365 implementations of their own. This is detailed in crypto/engine/README
2366 as it couldn't be adequately described here. However, there are a few
2367 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2368 were changed in the original introduction of ENGINE code have now
2369 reverted back - the hooking from this code to ENGINE is now a good
2370 deal more passive and at run-time, operations deal directly with
2371 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2372 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2373 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2374 they were not being used by the framework as there is no concept of a
2375 BIGNUM_METHOD and they could not be generalised to the new
2376 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2377 ENGINE_cpy() has been removed as it cannot be consistently defined in
2381 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2384 *) Change mkdef.pl to sort symbols that get the same entry number,
2385 and make sure the automatically generated functions ERR_load_*
2386 become part of libeay.num as well.
2389 *) New function SSL_renegotiate_pending(). This returns true once
2390 renegotiation has been requested (either SSL_renegotiate() call
2391 or HelloRequest/ClientHello receveived from the peer) and becomes
2392 false once a handshake has been completed.
2393 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2394 sends a HelloRequest, but does not ensure that a handshake takes
2395 place. SSL_renegotiate_pending() is useful for checking if the
2396 client has followed the request.)
2399 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2400 By default, clients may request session resumption even during
2401 renegotiation (if session ID contexts permit); with this option,
2402 session resumption is possible only in the first handshake.
2404 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2405 more bits available for options that should not be part of
2406 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2409 *) Add some demos for certificate and certificate request creation.
2412 *) Make maximum certificate chain size accepted from the peer application
2413 settable (SSL*_get/set_max_cert_list()), as proposed by
2414 "Douglas E. Engert" <deengert@anl.gov>.
2417 *) Add support for shared libraries for Unixware-7
2418 (Boyd Lynn Gerber <gerberb@zenez.com>).
2421 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2422 be done prior to destruction. Use this to unload error strings from
2423 ENGINEs that load their own error strings. NB: This adds two new API
2424 functions to "get" and "set" this destroy handler in an ENGINE.
2427 *) Alter all existing ENGINE implementations (except "openssl" and
2428 "openbsd") to dynamically instantiate their own error strings. This
2429 makes them more flexible to be built both as statically-linked ENGINEs
2430 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2431 Also, add stub code to each that makes building them as self-contained
2432 shared-libraries easier (see README.ENGINE).
2435 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2436 implementations into applications that are completely implemented in
2437 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2438 commands that can be used to configure what shared-library to load and
2439 to control aspects of the way it is handled. Also, made an update to
2440 the README.ENGINE file that brings its information up-to-date and
2441 provides some information and instructions on the "dynamic" ENGINE
2442 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2445 *) Make it possible to unload ranges of ERR strings with a new
2446 "ERR_unload_strings" function.
2449 *) Add a copy() function to EVP_MD.
2452 *) Make EVP_MD routines take a context pointer instead of just the
2453 md_data void pointer.
2456 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2457 that the digest can only process a single chunk of data
2458 (typically because it is provided by a piece of
2459 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2460 is only going to provide a single chunk of data, and hence the
2461 framework needn't accumulate the data for oneshot drivers.
2464 *) As with "ERR", make it possible to replace the underlying "ex_data"
2465 functions. This change also alters the storage and management of global
2466 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2467 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2468 index counters. The API functions that use this state have been changed
2469 to take a "class_index" rather than pointers to the class's local STACK
2470 and counter, and there is now an API function to dynamically create new
2471 classes. This centralisation allows us to (a) plug a lot of the
2472 thread-safety problems that existed, and (b) makes it possible to clean
2473 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2474 such data would previously have always leaked in application code and
2475 workarounds were in place to make the memory debugging turn a blind eye
2476 to it. Application code that doesn't use this new function will still
2477 leak as before, but their memory debugging output will announce it now
2478 rather than letting it slide.
2480 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2481 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2482 has a return value to indicate success or failure.
2485 *) Make it possible to replace the underlying "ERR" functions such that the
2486 global state (2 LHASH tables and 2 locks) is only used by the "default"
2487 implementation. This change also adds two functions to "get" and "set"
2488 the implementation prior to it being automatically set the first time
2489 any other ERR function takes place. Ie. an application can call "get",
2490 pass the return value to a module it has just loaded, and that module
2491 can call its own "set" function using that value. This means the
2492 module's "ERR" operations will use (and modify) the error state in the
2493 application and not in its own statically linked copy of OpenSSL code.
2496 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2497 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2498 the operation, and provides a more encapsulated way for external code
2499 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2500 to use these functions rather than manually incrementing the counts.
2502 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2505 *) Add EVP test program.
2508 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2511 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2512 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2513 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2514 These allow a CRL to be built without having to access X509_CRL fields
2515 directly. Modify 'ca' application to use new functions.
2518 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2519 bug workarounds. Rollback attack detection is a security feature.
2520 The problem will only arise on OpenSSL servers when TLSv1 is not
2521 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2522 Software authors not wanting to support TLSv1 will have special reasons
2523 for their choice and can explicitly enable this option.
2524 [Bodo Moeller, Lutz Jaenicke]
2526 *) Rationalise EVP so it can be extended: don't include a union of
2527 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2528 (similar to those existing for EVP_CIPHER_CTX).
2533 EVP_MD_CTX_init(&md); /* new function call */
2534 EVP_DigestInit(&md, EVP_sha1());
2535 EVP_DigestUpdate(&md, in, len);
2536 EVP_DigestFinal(&md, out, NULL);
2537 EVP_MD_CTX_cleanup(&md); /* new function call */
2541 *) Make DES key schedule conform to the usual scheme, as well as
2542 correcting its structure. This means that calls to DES functions
2543 now have to pass a pointer to a des_key_schedule instead of a
2544 plain des_key_schedule (which was actually always a pointer
2547 des_key_schedule ks;
2549 des_set_key_checked(..., &ks);
2550 des_ncbc_encrypt(..., &ks, ...);
2552 (Note that a later change renames 'des_...' into 'DES_...'.)
2555 *) Initial reduction of linker bloat: the use of some functions, such as
2556 PEM causes large amounts of unused functions to be linked in due to
2557 poor organisation. For example pem_all.c contains every PEM function
2558 which has a knock on effect of linking in large amounts of (unused)
2559 ASN1 code. Grouping together similar functions and splitting unrelated
2560 functions prevents this.
2563 *) Cleanup of EVP macros.
2566 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2567 correct _ecb suffix.
2570 *) Add initial OCSP responder support to ocsp application. The
2571 revocation information is handled using the text based index
2572 use by the ca application. The responder can either handle
2573 requests generated internally, supplied in files (for example
2574 via a CGI script) or using an internal minimal server.
2577 *) Add configuration choices to get zlib compression for TLS.
2580 *) Changes to Kerberos SSL for RFC 2712 compliance:
2581 1. Implemented real KerberosWrapper, instead of just using
2582 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2583 2. Implemented optional authenticator field of KerberosWrapper.
2585 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2586 and authenticator structs; see crypto/krb5/.
2588 Generalized Kerberos calls to support multiple Kerberos libraries.
2589 [Vern Staats <staatsvr@asc.hpc.mil>,
2590 Jeffrey Altman <jaltman@columbia.edu>
2591 via Richard Levitte]
2593 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2594 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2595 values for each of the key sizes rather than having just
2596 parameters (and 'speed' generating keys each time).
2599 *) Speed up EVP routines.
2602 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2603 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2604 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2605 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2607 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2608 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2609 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2612 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2614 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2617 *) Added the OS2-EMX target.
2618 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2620 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2621 to support NCONF routines in extension code. New function CONF_set_nconf()
2622 to allow functions which take an NCONF to also handle the old LHASH
2623 structure: this means that the old CONF compatible routines can be
2624 retained (in particular wrt extensions) without having to duplicate the
2625 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2628 *) Enhance the general user interface with mechanisms for inner control
2629 and with possibilities to have yes/no kind of prompts.
2632 *) Change all calls to low level digest routines in the library and
2633 applications to use EVP. Add missing calls to HMAC_cleanup() and
2634 don't assume HMAC_CTX can be copied using memcpy().
2635 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2637 *) Add the possibility to control engines through control names but with
2638 arbitrary arguments instead of just a string.
2639 Change the key loaders to take a UI_METHOD instead of a callback
2640 function pointer. NOTE: this breaks binary compatibility with earlier
2641 versions of OpenSSL [engine].
2642 Adapt the nCipher code for these new conditions and add a card insertion
2646 *) Enhance the general user interface with mechanisms to better support
2647 dialog box interfaces, application-defined prompts, the possibility
2648 to use defaults (for example default passwords from somewhere else)
2649 and interrupts/cancellations.
2652 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2653 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2656 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2657 tidy up some unnecessarily weird code in 'sk_new()').
2658 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2660 *) Change the key loading routines for ENGINEs to use the same kind
2661 callback (pem_password_cb) as all other routines that need this
2665 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2666 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2667 than this minimum value is recommended.
2670 *) New random seeder for OpenVMS, using the system process statistics
2671 that are easily reachable.
2674 *) Windows apparently can't transparently handle global
2675 variables defined in DLLs. Initialisations such as:
2677 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2679 wont compile. This is used by the any applications that need to
2680 declare their own ASN1 modules. This was fixed by adding the option
2681 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2682 needed for static libraries under Win32.
2685 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2686 setting of purpose and trust fields. New X509_STORE trust and
2687 purpose functions and tidy up setting in other SSL functions.
2690 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2691 structure. These are inherited by X509_STORE_CTX when it is
2692 initialised. This allows various defaults to be set in the
2693 X509_STORE structure (such as flags for CRL checking and custom
2694 purpose or trust settings) for functions which only use X509_STORE_CTX
2695 internally such as S/MIME.
2697 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2698 trust settings if they are not set in X509_STORE. This allows X509_STORE
2699 purposes and trust (in S/MIME for example) to override any set by default.
2701 Add command line options for CRL checking to smime, s_client and s_server
2705 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2706 are set then the CRL is looked up in the X509_STORE structure and
2707 its validity and signature checked, then if the certificate is found
2708 in the CRL the verify fails with a revoked error.
2710 Various new CRL related callbacks added to X509_STORE_CTX structure.
2712 Command line options added to 'verify' application to support this.
2714 This needs some additional work, such as being able to handle multiple
2715 CRLs with different times, extension based lookup (rather than just
2716 by subject name) and ultimately more complete V2 CRL extension
2720 *) Add a general user interface API (crypto/ui/). This is designed
2721 to replace things like des_read_password and friends (backward
2722 compatibility functions using this new API are provided).
2723 The purpose is to remove prompting functions from the DES code
2724 section as well as provide for prompting through dialog boxes in
2725 a window system and the like.
2728 *) Add "ex_data" support to ENGINE so implementations can add state at a
2729 per-structure level rather than having to store it globally.
2732 *) Make it possible for ENGINE structures to be copied when retrieved by
2733 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2734 This causes the "original" ENGINE structure to act like a template,
2735 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2736 operational state can be localised to each ENGINE structure, despite the
2737 fact they all share the same "methods". New ENGINE structures returned in
2738 this case have no functional references and the return value is the single
2739 structural reference. This matches the single structural reference returned
2740 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2744 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2745 needs to match any other type at all we need to manually clear the
2749 *) Changes to the "openssl engine" utility to include;
2750 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2751 about an ENGINE's available control commands.
2752 - executing control commands from command line arguments using the
2753 '-pre' and '-post' switches. '-post' is only used if '-t' is
2754 specified and the ENGINE is successfully initialised. The syntax for
2755 the individual commands are colon-separated, for example;
2756 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2759 *) New dynamic control command support for ENGINEs. ENGINEs can now
2760 declare their own commands (numbers), names (strings), descriptions,
2761 and input types for run-time discovery by calling applications. A
2762 subset of these commands are implicitly classed as "executable"
2763 depending on their input type, and only these can be invoked through
2764 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2765 can be based on user input, config files, etc). The distinction is
2766 that "executable" commands cannot return anything other than a boolean
2767 result and can only support numeric or string input, whereas some
2768 discoverable commands may only be for direct use through
2769 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2770 pointers, or other custom uses. The "executable" commands are to
2771 support parameterisations of ENGINE behaviour that can be
2772 unambiguously defined by ENGINEs and used consistently across any
2773 OpenSSL-based application. Commands have been added to all the
2774 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2775 control over shared-library paths without source code alterations.
2778 *) Changed all ENGINE implementations to dynamically allocate their
2779 ENGINEs rather than declaring them statically. Apart from this being
2780 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2781 this also allows the implementations to compile without using the
2782 internal engine_int.h header.
2785 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2786 'const' value. Any code that should be able to modify a RAND_METHOD
2787 should already have non-const pointers to it (ie. they should only
2788 modify their own ones).
2791 *) Made a variety of little tweaks to the ENGINE code.
2792 - "atalla" and "ubsec" string definitions were moved from header files
2793 to C code. "nuron" string definitions were placed in variables
2794 rather than hard-coded - allowing parameterisation of these values
2795 later on via ctrl() commands.
2796 - Removed unused "#if 0"'d code.
2797 - Fixed engine list iteration code so it uses ENGINE_free() to release
2798 structural references.
2799 - Constified the RAND_METHOD element of ENGINE structures.
2800 - Constified various get/set functions as appropriate and added
2801 missing functions (including a catch-all ENGINE_cpy that duplicates
2802 all ENGINE values onto a new ENGINE except reference counts/state).
2803 - Removed NULL parameter checks in get/set functions. Setting a method
2804 or function to NULL is a way of cancelling out a previously set
2805 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2806 and doesn't justify the extra error symbols and code.
2807 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2808 flags from engine_int.h to engine.h.
2809 - Changed prototypes for ENGINE handler functions (init(), finish(),
2810 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2813 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2814 to the algorithm using long division. The binary algorithm can be
2815 used only if the modulus is odd. On 32-bit systems, it is faster
2816 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2817 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2818 up to 450 bits. In 64-bit environments, the binary algorithm
2819 appears to be advantageous for much longer moduli; here we use it
2820 for moduli up to 2048 bits.
2823 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2824 could not support the combine flag in choice fields.
2827 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2828 extensions from a certificate request to the certificate.
2831 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2832 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2833 file: this allows the display of the certificate about to be
2834 signed to be customised, to allow certain fields to be included
2835 or excluded and extension details. The old system didn't display
2836 multicharacter strings properly, omitted fields not in the policy
2837 and couldn't display additional details such as extensions.
2840 *) Function EC_POINTs_mul for multiple scalar multiplication
2841 of an arbitrary number of elliptic curve points
2842 \sum scalars[i]*points[i],
2843 optionally including the generator defined for the EC_GROUP:
2844 scalar*generator + \sum scalars[i]*points[i].
2846 EC_POINT_mul is a simple wrapper function for the typical case
2847 that the point list has just one item (besides the optional
2851 *) First EC_METHODs for curves over GF(p):
2853 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2854 operations and provides various method functions that can also
2855 operate with faster implementations of modular arithmetic.
2857 EC_GFp_mont_method() reuses most functions that are part of
2858 EC_GFp_simple_method, but uses Montgomery arithmetic.
2860 [Bodo Moeller; point addition and point doubling
2861 implementation directly derived from source code provided by
2862 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2864 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2865 crypto/ec/ec_lib.c):
2867 Curves are EC_GROUP objects (with an optional group generator)
2868 based on EC_METHODs that are built into the library.
2870 Points are EC_POINT objects based on EC_GROUP objects.
2872 Most of the framework would be able to handle curves over arbitrary
2873 finite fields, but as there are no obvious types for fields other
2874 than GF(p), some functions are limited to that for now.
2877 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2878 that the file contains a complete HTTP response.
2881 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2882 change the def and num file printf format specifier from "%-40sXXX"
2883 to "%-39s XXX". The latter will always guarantee a space after the
2884 field while the former will cause them to run together if the field
2885 is 40 of more characters long.
2888 *) Constify the cipher and digest 'method' functions and structures
2889 and modify related functions to take constant EVP_MD and EVP_CIPHER
2893 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2894 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2897 *) Modify EVP_Digest*() routines so they now return values. Although the
2898 internal software routines can never fail additional hardware versions
2902 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2904 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2905 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2908 ERR_R_NESTED_ASN1_ERROR
2910 ERR_R_MISSING_ASN1_EOS
2911 were 4 .. 9, conflicting with
2912 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2914 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2915 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2917 Add new error code 'ERR_R_INTERNAL_ERROR'.
2920 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2924 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2925 sets the subject name for a new request or supersedes the
2926 subject name in a given request. Formats that can be parsed are
2927 'CN=Some Name, OU=myOU, C=IT'
2929 'CN=Some Name/OU=myOU/C=IT'.
2931 Add options '-batch' and '-verbose' to 'openssl req'.
2932 [Massimiliano Pala <madwolf@hackmasters.net>]
2934 *) Introduce the possibility to access global variables through
2935 functions on platform were that's the best way to handle exporting
2936 global variables in shared libraries. To enable this functionality,
2937 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2938 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2939 is normally done by Configure or something similar).
2941 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2942 in the source file (foo.c) like this:
2944 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2945 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2947 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2948 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2950 OPENSSL_DECLARE_GLOBAL(int,foo);
2951 #define foo OPENSSL_GLOBAL_REF(foo)
2952 OPENSSL_DECLARE_GLOBAL(double,bar);
2953 #define bar OPENSSL_GLOBAL_REF(bar)
2955 The #defines are very important, and therefore so is including the
2956 header file everywhere where the defined globals are used.
2958 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2959 of ASN.1 items, but that structure is a bit different.
2961 The largest change is in util/mkdef.pl which has been enhanced with
2962 better and easier to understand logic to choose which symbols should
2963 go into the Windows .def files as well as a number of fixes and code
2964 cleanup (among others, algorithm keywords are now sorted
2965 lexicographically to avoid constant rewrites).
2968 *) In BN_div() keep a copy of the sign of 'num' before writing the
2969 result to 'rm' because if rm==num the value will be overwritten
2970 and produce the wrong result if 'num' is negative: this caused
2971 problems with BN_mod() and BN_nnmod().
2974 *) Function OCSP_request_verify(). This checks the signature on an
2975 OCSP request and verifies the signer certificate. The signer
2976 certificate is just checked for a generic purpose and OCSP request
2980 *) Add OCSP_check_validity() function to check the validity of OCSP
2981 responses. OCSP responses are prepared in real time and may only
2982 be a few seconds old. Simply checking that the current time lies
2983 between thisUpdate and nextUpdate max reject otherwise valid responses
2984 caused by either OCSP responder or client clock inaccuracy. Instead
2985 we allow thisUpdate and nextUpdate to fall within a certain period of
2986 the current time. The age of the response can also optionally be
2987 checked. Two new options -validity_period and -status_age added to
2991 *) If signature or public key algorithm is unrecognized print out its
2992 OID rather that just UNKNOWN.
2995 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2996 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2997 ID to be generated from the issuer certificate alone which can then be
2998 passed to OCSP_id_issuer_cmp().
3001 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3002 ASN1 modules to export functions returning ASN1_ITEM pointers
3003 instead of the ASN1_ITEM structures themselves. This adds several
3004 new macros which allow the underlying ASN1 function/structure to
3005 be accessed transparently. As a result code should not use ASN1_ITEM
3006 references directly (such as &X509_it) but instead use the relevant
3007 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3008 use of the new ASN1 code on platforms where exporting structures
3009 is problematical (for example in shared libraries) but exporting
3010 functions returning pointers to structures is not.
3013 *) Add support for overriding the generation of SSL/TLS session IDs.
3014 These callbacks can be registered either in an SSL_CTX or per SSL.
3015 The purpose of this is to allow applications to control, if they wish,
3016 the arbitrary values chosen for use as session IDs, particularly as it
3017 can be useful for session caching in multiple-server environments. A
3018 command-line switch for testing this (and any client code that wishes
3019 to use such a feature) has been added to "s_server".
3020 [Geoff Thorpe, Lutz Jaenicke]
3022 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3023 of the form '#if defined(...) || defined(...) || ...' and
3024 '#if !defined(...) && !defined(...) && ...'. This also avoids
3025 the growing number of special cases it was previously handling.
3028 *) Make all configuration macros available for application by making
3029 sure they are available in opensslconf.h, by giving them names starting
3030 with "OPENSSL_" to avoid conflicts with other packages and by making
3031 sure e_os2.h will cover all platform-specific cases together with
3033 Additionally, it is now possible to define configuration/platform-
3034 specific names (called "system identities"). In the C code, these
3035 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3036 macro with the name beginning with "OPENSSL_SYS_", which is determined
3037 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3041 *) New option -set_serial to 'req' and 'x509' this allows the serial
3042 number to use to be specified on the command line. Previously self
3043 signed certificates were hard coded with serial number 0 and the
3044 CA options of 'x509' had to use a serial number in a file which was
3048 *) New options to 'ca' utility to support V2 CRL entry extensions.
3049 Currently CRL reason, invalidity date and hold instruction are
3050 supported. Add new CRL extensions to V3 code and some new objects.
3053 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3054 disable standard block padding (aka PKCS#5 padding) in the EVP
3055 API, which was previously mandatory. This means that the data is
3056 not padded in any way and so the total length much be a multiple
3057 of the block size, otherwise an error occurs.
3060 *) Initial (incomplete) OCSP SSL support.
3063 *) New function OCSP_parse_url(). This splits up a URL into its host,
3064 port and path components: primarily to parse OCSP URLs. New -url
3065 option to ocsp utility.
3068 *) New nonce behavior. The return value of OCSP_check_nonce() now
3069 reflects the various checks performed. Applications can decide
3070 whether to tolerate certain situations such as an absent nonce
3071 in a response when one was present in a request: the ocsp application
3072 just prints out a warning. New function OCSP_add1_basic_nonce()
3073 this is to allow responders to include a nonce in a response even if
3074 the request is nonce-less.
3077 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3078 skipped when using openssl x509 multiple times on a single input file,
3079 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3082 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3083 set string type: to handle setting ASN1_TIME structures. Fix ca
3084 utility to correctly initialize revocation date of CRLs.
3087 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3088 the clients preferred ciphersuites and rather use its own preferences.
3089 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3090 Internet Explorer by ensuring unchanged hash method during stepup.
3091 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3094 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3095 to aes and add a new 'exist' option to print out symbols that don't
3099 *) Additional options to ocsp utility to allow flags to be set and
3100 additional certificates supplied.
3103 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3104 OCSP client a number of certificate to only verify the response
3108 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3109 handle the new API. Currently only ECB, CBC modes supported. Add new
3112 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3113 Encryption Standard (AES) Ciphersuites for Transport Layer
3114 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3115 not enabled by default and were not part of the "ALL" ciphersuite
3116 alias because they were not yet official; they could be
3117 explicitly requested by specifying the "AESdraft" ciphersuite
3118 group alias. In the final release of OpenSSL 0.9.7, the group
3119 alias is called "AES" and is part of "ALL".)
3120 [Ben Laurie, Steve Henson, Bodo Moeller]
3122 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3123 request to response.
3126 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3127 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3128 extract information from a certificate request. OCSP_response_create()
3129 creates a response and optionally adds a basic response structure.
3130 OCSP_basic_add1_status() adds a complete single response to a basic
3131 response and returns the OCSP_SINGLERESP structure just added (to allow
3132 extensions to be included for example). OCSP_basic_add1_cert() adds a
3133 certificate to a basic response and OCSP_basic_sign() signs a basic
3134 response with various flags. New helper functions ASN1_TIME_check()
3135 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3136 (converts ASN1_TIME to GeneralizedTime).
3139 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3140 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3141 structure from a certificate. X509_pubkey_digest() digests the public_key
3142 contents: this is used in various key identifiers.
3145 *) Make sk_sort() tolerate a NULL argument.
3146 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3148 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3149 passed by the function are trusted implicitly. If any of them signed the
3150 response then it is assumed to be valid and is not verified.
3153 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3154 to data. This was previously part of the PKCS7 ASN1 code. This
3155 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3156 [Steve Henson, reported by Kenneth R. Robinette
3157 <support@securenetterm.com>]
3159 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3160 routines: without these tracing memory leaks is very painful.
3161 Fix leaks in PKCS12 and PKCS7 routines.
3164 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3165 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3166 effectively meant GeneralizedTime would never be used. Now it
3167 is initialised to -1 but X509_time_adj() now has to check the value
3168 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3169 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3170 [Steve Henson, reported by Kenneth R. Robinette
3171 <support@securenetterm.com>]
3173 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3174 result in a zero length in the ASN1_INTEGER structure which was
3175 not consistent with the structure when d2i_ASN1_INTEGER() was used
3176 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3177 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3178 where it did not print out a minus for negative ASN1_INTEGER.
3181 *) Add summary printout to ocsp utility. The various functions which
3182 convert status values to strings have been renamed to:
3183 OCSP_response_status_str(), OCSP_cert_status_str() and
3184 OCSP_crl_reason_str() and are no longer static. New options
3185 to verify nonce values and to disable verification. OCSP response
3186 printout format cleaned up.
3189 *) Add additional OCSP certificate checks. These are those specified
3190 in RFC2560. This consists of two separate checks: the CA of the
3191 certificate being checked must either be the OCSP signer certificate
3192 or the issuer of the OCSP signer certificate. In the latter case the
3193 OCSP signer certificate must contain the OCSP signing extended key
3194 usage. This check is performed by attempting to match the OCSP
3195 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3196 in the OCSP_CERTID structures of the response.
3199 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3200 and related routines. This uses the standard OpenSSL certificate
3201 verify routines to perform initial checks (just CA validity) and
3202 to obtain the certificate chain. Then additional checks will be
3203 performed on the chain. Currently the root CA is checked to see
3204 if it is explicitly trusted for OCSP signing. This is used to set
3205 a root CA as a global signing root: that is any certificate that
3206 chains to that CA is an acceptable OCSP signing certificate.
3209 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3210 extensions from a separate configuration file.
3211 As when reading extensions from the main configuration file,
3212 the '-extensions ...' option may be used for specifying the
3214 [Massimiliano Pala <madwolf@comune.modena.it>]
3216 *) New OCSP utility. Allows OCSP requests to be generated or
3217 read. The request can be sent to a responder and the output
3218 parsed, outputed or printed in text form. Not complete yet:
3219 still needs to check the OCSP response validity.
3222 *) New subcommands for 'openssl ca':
3223 'openssl ca -status <serial>' prints the status of the cert with
3224 the given serial number (according to the index file).
3225 'openssl ca -updatedb' updates the expiry status of certificates
3227 [Massimiliano Pala <madwolf@comune.modena.it>]
3229 *) New '-newreq-nodes' command option to CA.pl. This is like
3230 '-newreq', but calls 'openssl req' with the '-nodes' option
3231 so that the resulting key is not encrypted.
3232 [Damien Miller <djm@mindrot.org>]
3234 *) New configuration for the GNU Hurd.
3235 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3237 *) Initial code to implement OCSP basic response verify. This
3238 is currently incomplete. Currently just finds the signer's
3239 certificate and verifies the signature on the response.
3242 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3243 value of OPENSSLDIR. This is available via the new '-d' option
3244 to 'openssl version', and is also included in 'openssl version -a'.
3247 *) Allowing defining memory allocation callbacks that will be given
3248 file name and line number information in additional arguments
3249 (a const char* and an int). The basic functionality remains, as
3250 well as the original possibility to just replace malloc(),
3251 realloc() and free() by functions that do not know about these
3252 additional arguments. To register and find out the current
3253 settings for extended allocation functions, the following
3254 functions are provided:
3256 CRYPTO_set_mem_ex_functions
3257 CRYPTO_set_locked_mem_ex_functions
3258 CRYPTO_get_mem_ex_functions
3259 CRYPTO_get_locked_mem_ex_functions
3261 These work the same way as CRYPTO_set_mem_functions and friends.
3262 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3263 extended allocation function is enabled.
3264 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3265 a conventional allocation function is enabled.
3266 [Richard Levitte, Bodo Moeller]
3268 *) Finish off removing the remaining LHASH function pointer casts.
3269 There should no longer be any prototype-casting required when using
3270 the LHASH abstraction, and any casts that remain are "bugs". See
3271 the callback types and macros at the head of lhash.h for details
3272 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3275 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3276 If /dev/[u]random devices are not available or do not return enough
3277 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3279 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3280 /etc/entropy will be queried once each in this sequence, quering stops
3281 when enough entropy was collected without querying more sockets.
3284 *) Change the Unix RAND_poll() variant to be able to poll several
3285 random devices, as specified by DEVRANDOM, until a sufficient amount
3286 of data has been collected. We spend at most 10 ms on each file
3287 (select timeout) and read in non-blocking mode. DEVRANDOM now
3288 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3289 (previously it was just the string "/dev/urandom"), so on typical
3290 platforms the 10 ms delay will never occur.
3291 Also separate out the Unix variant to its own file, rand_unix.c.
3292 For VMS, there's a currently-empty rand_vms.c.
3295 *) Move OCSP client related routines to ocsp_cl.c. These
3296 provide utility functions which an application needing
3297 to issue a request to an OCSP responder and analyse the
3298 response will typically need: as opposed to those which an
3299 OCSP responder itself would need which will be added later.
3301 OCSP_request_sign() signs an OCSP request with an API similar
3302 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3303 response. OCSP_response_get1_basic() extracts basic response
3304 from response. OCSP_resp_find_status(): finds and extracts status
3305 information from an OCSP_CERTID structure (which will be created
3306 when the request structure is built). These are built from lower
3307 level functions which work on OCSP_SINGLERESP structures but
3308 wont normally be used unless the application wishes to examine
3309 extensions in the OCSP response for example.
3311 Replace nonce routines with a pair of functions.
3312 OCSP_request_add1_nonce() adds a nonce value and optionally
3313 generates a random value. OCSP_check_nonce() checks the
3314 validity of the nonce in an OCSP response.
3317 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3318 This doesn't copy the supplied OCSP_CERTID and avoids the
3319 need to free up the newly created id. Change return type
3320 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3321 This can then be used to add extensions to the request.
3322 Deleted OCSP_request_new(), since most of its functionality
3323 is now in OCSP_REQUEST_new() (and the case insensitive name
3324 clash) apart from the ability to set the request name which
3325 will be added elsewhere.
3328 *) Update OCSP API. Remove obsolete extensions argument from
3329 various functions. Extensions are now handled using the new
3330 OCSP extension code. New simple OCSP HTTP function which
3331 can be used to send requests and parse the response.
3334 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3335 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3336 uses the special reorder version of SET OF to sort the attributes
3337 and reorder them to match the encoded order. This resolves a long
3338 standing problem: a verify on a PKCS7 structure just after signing
3339 it used to fail because the attribute order did not match the
3340 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3341 it uses the received order. This is necessary to tolerate some broken
3342 software that does not order SET OF. This is handled by encoding
3343 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3344 to produce the required SET OF.
3347 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3348 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3349 files to get correct declarations of the ASN.1 item variables.
3352 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3353 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3354 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3355 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3356 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3357 ASN1_ITEM and no wrapper functions.
3360 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3361 replace the old function pointer based I/O routines. Change most of
3362 the *_d2i_bio() and *_d2i_fp() functions to use these.
3365 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3366 lines, recognice more "algorithms" that can be deselected, and make
3367 it complain about algorithm deselection that isn't recognised.
3370 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3371 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3372 to use new functions. Add NO_ASN1_OLD which can be set to remove
3373 some old style ASN1 functions: this can be used to determine if old
3374 code will still work when these eventually go away.
3377 *) New extension functions for OCSP structures, these follow the
3378 same conventions as certificates and CRLs.
3381 *) New function X509V3_add1_i2d(). This automatically encodes and
3382 adds an extension. Its behaviour can be customised with various
3383 flags to append, replace or delete. Various wrappers added for
3384 certifcates and CRLs.
3387 *) Fix to avoid calling the underlying ASN1 print routine when
3388 an extension cannot be parsed. Correct a typo in the
3389 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3392 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3393 entries for variables.
3396 *) Add functionality to apps/openssl.c for detecting locking
3397 problems: As the program is single-threaded, all we have
3398 to do is register a locking callback using an array for
3399 storing which locks are currently held by the program.
3402 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3403 SSL_get_ex_data_X509_STORE_idx(), which is used in
3404 ssl_verify_cert_chain() and thus can be called at any time
3405 during TLS/SSL handshakes so that thread-safety is essential.
3406 Unfortunately, the ex_data design is not at all suited
3407 for multi-threaded use, so it probably should be abolished.
3410 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3411 [Broadcom, tweaked and integrated by Geoff Thorpe]
3413 *) Move common extension printing code to new function
3414 X509V3_print_extensions(). Reorganise OCSP print routines and
3415 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3418 *) New function X509_signature_print() to remove duplication in some
3422 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3423 set (this was treated exactly the same as SET OF previously). This
3424 is used to reorder the STACK representing the structure to match the
3425 encoding. This will be used to get round a problem where a PKCS7
3426 structure which was signed could not be verified because the STACK
3427 order did not reflect the encoded order.
3430 *) Reimplement the OCSP ASN1 module using the new code.
3433 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3434 for its ASN1 operations. The old style function pointers still exist
3435 for now but they will eventually go away.
3438 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3439 completely replaces the old ASN1 functionality with a table driven
3440 encoder and decoder which interprets an ASN1_ITEM structure describing
3441 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3442 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3443 has also been converted to the new form.
3446 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3447 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3448 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3449 for negative moduli.
3452 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3453 of not touching the result's sign bit.
3456 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3460 *) Changed the LHASH code to use prototypes for callbacks, and created
3461 macros to declare and implement thin (optionally static) functions
3462 that provide type-safety and avoid function pointer casting for the
3463 type-specific callbacks.
3466 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3468 [Veers Staats <staatsvr@asc.hpc.mil>,
3469 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3471 *) Reformat the FAQ so the different questions and answers can be divided
3472 in sections depending on the subject.
3475 *) Have the zlib compression code load ZLIB.DLL dynamically under
3479 *) New function BN_mod_sqrt for computing square roots modulo a prime
3480 (using the probabilistic Tonelli-Shanks algorithm unless
3481 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3482 be handled deterministically).
3483 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3485 *) Make BN_mod_inverse faster by explicitly handling small quotients
3486 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3487 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3490 *) New function BN_kronecker.
3493 *) Fix BN_gcd so that it works on negative inputs; the result is
3494 positive unless both parameters are zero.
3495 Previously something reasonably close to an infinite loop was
3496 possible because numbers could be growing instead of shrinking
3497 in the implementation of Euclid's algorithm.
3500 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3501 sign of the number in question.
3503 Fix BN_is_word(a,w) to work correctly for w == 0.
3505 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3506 because its test if the absolute value of 'a' equals 'w'.
3507 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3508 it exists mostly for use in the implementations of BN_is_zero(),
3509 BN_is_one(), and BN_is_word().
3512 *) New function BN_swap.
3515 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3516 the exponentiation functions are more likely to produce reasonable
3517 results on negative inputs.
3520 *) Change BN_mod_mul so that the result is always non-negative.
3521 Previously, it could be negative if one of the factors was negative;
3522 I don't think anyone really wanted that behaviour.
3525 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3526 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3527 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3528 and add new functions:
3537 BN_mod_lshift1_quick
3541 These functions always generate non-negative results.
3543 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3544 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3546 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3547 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3548 be reduced modulo m.
3549 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3552 The following entry accidentily appeared in the CHANGES file
3553 distributed with OpenSSL 0.9.7. The modifications described in
3554 it do *not* apply to OpenSSL 0.9.7.
3556 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3557 was actually never needed) and in BN_mul(). The removal in BN_mul()
3558 required a small change in bn_mul_part_recursive() and the addition
3559 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3560 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3561 bn_sub_words() and bn_add_words() except they take arrays with
3566 *) In 'openssl passwd', verify passwords read from the terminal
3567 unless the '-salt' option is used (which usually means that
3568 verification would just waste user's time since the resulting
3569 hash is going to be compared with some given password hash)
3570 or the new '-noverify' option is used.
3572 This is an incompatible change, but it does not affect
3573 non-interactive use of 'openssl passwd' (passwords on the command
3574 line, '-stdin' option, '-in ...' option) and thus should not
3578 *) Remove all references to RSAref, since there's no more need for it.
3581 *) Make DSO load along a path given through an environment variable
3582 (SHLIB_PATH) with shl_load().
3585 *) Constify the ENGINE code as a result of BIGNUM constification.
3586 Also constify the RSA code and most things related to it. In a
3587 few places, most notable in the depth of the ASN.1 code, ugly
3588 casts back to non-const were required (to be solved at a later
3592 *) Make it so the openssl application has all engines loaded by default.
3595 *) Constify the BIGNUM routines a little more.
3598 *) Add the following functions:
3600 ENGINE_load_cswift()
3602 ENGINE_load_atalla()
3604 ENGINE_load_builtin_engines()
3606 That way, an application can itself choose if external engines that
3607 are built-in in OpenSSL shall ever be used or not. The benefit is
3608 that applications won't have to be linked with libdl or other dso
3609 libraries unless it's really needed.
3611 Changed 'openssl engine' to load all engines on demand.
3612 Changed the engine header files to avoid the duplication of some
3613 declarations (they differed!).
3616 *) 'openssl engine' can now list capabilities.
3619 *) Better error reporting in 'openssl engine'.
3622 *) Never call load_dh_param(NULL) in s_server.
3625 *) Add engine application. It can currently list engines by name and
3626 identity, and test if they are actually available.
3629 *) Improve RPM specification file by forcing symbolic linking and making
3630 sure the installed documentation is also owned by root.root.
3631 [Damien Miller <djm@mindrot.org>]
3633 *) Give the OpenSSL applications more possibilities to make use of
3634 keys (public as well as private) handled by engines.
3637 *) Add OCSP code that comes from CertCo.
3640 *) Add VMS support for the Rijndael code.
3643 *) Added untested support for Nuron crypto accelerator.
3646 *) Add support for external cryptographic devices. This code was
3647 previously distributed separately as the "engine" branch.
3648 [Geoff Thorpe, Richard Levitte]
3650 *) Rework the filename-translation in the DSO code. It is now possible to
3651 have far greater control over how a "name" is turned into a filename
3652 depending on the operating environment and any oddities about the
3653 different shared library filenames on each system.
3656 *) Support threads on FreeBSD-elf in Configure.
3659 *) Fix for SHA1 assembly problem with MASM: it produces
3660 warnings about corrupt line number information when assembling
3661 with debugging information. This is caused by the overlapping
3663 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3666 NCONF_get_number() has no error checking at all. As a replacement,
3667 NCONF_get_number_e() is defined (_e for "error checking") and is
3668 promoted strongly. The old NCONF_get_number is kept around for
3669 binary backward compatibility.
3670 Make it possible for methods to load from something other than a BIO,
3671 by providing a function pointer that is given a name instead of a BIO.
3672 For example, this could be used to load configuration data from an
3676 *) Fix for non blocking accept BIOs. Added new I/O special reason
3677 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3678 with non blocking I/O was not possible because no retry code was
3679 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3683 *) Added the beginnings of Rijndael support.
3686 *) Fix for bug in DirectoryString mask setting. Add support for
3687 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3688 to allow certificate printing to more controllable, additional
3689 'certopt' option to 'x509' to allow new printing options to be
3693 *) Clean old EAY MD5 hack from e_os.h.
3696 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3698 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3699 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3700 [Joe Orton, Steve Henson]
3702 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3704 *) Fix additional bug revealed by the NISCC test suite:
3706 Stop bug triggering large recursion when presented with
3707 certain ASN.1 tags (CVE-2003-0851)
3710 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3712 *) Fix various bugs revealed by running the NISCC test suite:
3714 Stop out of bounds reads in the ASN1 code when presented with
3715 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3717 If verify callback ignores invalid public key errors don't try to check
3718 certificate signature with the NULL public key.
3722 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3723 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3727 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3728 extra data after the compression methods not only for TLS 1.0
3729 but also for SSL 3.0 (as required by the specification).
3730 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3732 *) Change X509_certificate_type() to mark the key as exported/exportable
3733 when it's 512 *bits* long, not 512 bytes.
3736 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3738 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3739 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3740 a protocol version number mismatch like a decryption error
3741 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3744 *) Turn on RSA blinding by default in the default implementation
3745 to avoid a timing attack. Applications that don't want it can call
3746 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3747 They would be ill-advised to do so in most cases.
3748 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3750 *) Change RSA blinding code so that it works when the PRNG is not
3751 seeded (in this case, the secret RSA exponent is abused as
3752 an unpredictable seed -- if it is not unpredictable, there
3753 is no point in blinding anyway). Make RSA blinding thread-safe
3754 by remembering the creator's thread ID in rsa->blinding and
3755 having all other threads use local one-time blinding factors
3756 (this requires more computation than sharing rsa->blinding, but
3757 avoids excessive locking; and if an RSA object is not shared
3758 between threads, blinding will still be very fast).
3761 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3763 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3764 via timing by performing a MAC computation even if incorrrect
3765 block cipher padding has been found. This is a countermeasure
3766 against active attacks where the attacker has to distinguish
3767 between bad padding and a MAC verification error. (CVE-2003-0078)
3769 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3770 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3771 Martin Vuagnoux (EPFL, Ilion)]
3773 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3775 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3776 memory from it's contents. This is done with a counter that will
3777 place alternating values in each byte. This can be used to solve
3778 two issues: 1) the removal of calls to memset() by highly optimizing
3779 compilers, and 2) cleansing with other values than 0, since those can
3780 be read through on certain media, for example a swap space on disk.
3783 *) Bugfix: client side session caching did not work with external caching,
3784 because the session->cipher setting was not restored when reloading
3785 from the external cache. This problem was masked, when
3786 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3787 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3790 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3791 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3792 [Zeev Lieber <zeev-l@yahoo.com>]
3794 *) Undo an undocumented change introduced in 0.9.6e which caused
3795 repeated calls to OpenSSL_add_all_ciphers() and
3796 OpenSSL_add_all_digests() to be ignored, even after calling
3800 *) Change the default configuration reader to deal with last line not
3801 being properly terminated.
3804 *) Change X509_NAME_cmp() so it applies the special rules on handling
3805 DN values that are of type PrintableString, as well as RDNs of type
3806 emailAddress where the value has the type ia5String.
3807 [stefank@valicert.com via Richard Levitte]
3809 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3810 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3811 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3812 the bitwise-OR of the two for use by the majority of applications
3813 wanting this behaviour, and update the docs. The documented
3814 behaviour and actual behaviour were inconsistent and had been
3815 changing anyway, so this is more a bug-fix than a behavioural
3817 [Geoff Thorpe, diagnosed by Nadav Har'El]
3819 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3820 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3823 *) Fix initialization code race conditions in
3824 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3825 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3826 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3827 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3828 ssl2_get_cipher_by_char(),
3829 ssl3_get_cipher_by_char().
3830 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3832 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3833 the cached sessions are flushed, as the remove_cb() might use ex_data
3834 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3835 (see [openssl.org #212]).
3836 [Geoff Thorpe, Lutz Jaenicke]
3838 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3839 length, instead of the encoding length to d2i_ASN1_OBJECT.
3842 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3844 *) [In 0.9.6g-engine release:]
3845 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3846 [Lynn Gazis <lgazis@rainbow.com>]
3848 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3850 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3851 and get fix the header length calculation.
3852 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3853 Alon Kantor <alonk@checkpoint.com> (and others),
3856 *) Use proper error handling instead of 'assertions' in buffer
3857 overflow checks added in 0.9.6e. This prevents DoS (the
3858 assertions could call abort()).
3859 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3861 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3863 *) Add various sanity checks to asn1_get_length() to reject
3864 the ASN1 length bytes if they exceed sizeof(long), will appear
3865 negative or the content length exceeds the length of the
3867 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3869 *) Fix cipher selection routines: ciphers without encryption had no flags
3870 for the cipher strength set and where therefore not handled correctly
3871 by the selection routines (PR #130).
3874 *) Fix EVP_dsa_sha macro.
3878 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3879 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3880 that was added in OpenSSL 0.9.6d.
3882 As the countermeasure turned out to be incompatible with some
3883 broken SSL implementations, the new option is part of SSL_OP_ALL.
3884 SSL_OP_ALL is usually employed when compatibility with weird SSL
3885 implementations is desired (e.g. '-bugs' option to 's_client' and
3886 's_server'), so the new option is automatically set in many
3890 *) Changes in security patch:
3892 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3893 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3894 Air Force Materiel Command, USAF, under agreement number
3897 *) Add various sanity checks to asn1_get_length() to reject
3898 the ASN1 length bytes if they exceed sizeof(long), will appear
3899 negative or the content length exceeds the length of the
3900 supplied buffer. (CVE-2002-0659)
3901 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3903 *) Assertions for various potential buffer overflows, not known to
3905 [Ben Laurie (CHATS)]
3907 *) Various temporary buffers to hold ASCII versions of integers were
3908 too small for 64 bit platforms. (CVE-2002-0655)
3909 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3911 *) Remote buffer overflow in SSL3 protocol - an attacker could
3912 supply an oversized session ID to a client. (CVE-2002-0656)
3913 [Ben Laurie (CHATS)]
3915 *) Remote buffer overflow in SSL2 protocol - an attacker could
3916 supply an oversized client master key. (CVE-2002-0656)
3917 [Ben Laurie (CHATS)]
3919 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3921 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3922 encoded as NULL) with id-dsa-with-sha1.
3923 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3925 *) Check various X509_...() return values in apps/req.c.
3926 [Nils Larsch <nla@trustcenter.de>]
3928 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3929 an end-of-file condition would erronously be flagged, when the CRLF
3930 was just at the end of a processed block. The bug was discovered when
3931 processing data through a buffering memory BIO handing the data to a
3932 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3933 <ptsekov@syntrex.com> and Nedelcho Stanev.
3936 *) Implement a countermeasure against a vulnerability recently found
3937 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3938 before application data chunks to avoid the use of known IVs
3939 with data potentially chosen by the attacker.
3942 *) Fix length checks in ssl3_get_client_hello().
3945 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3946 to prevent ssl3_read_internal() from incorrectly assuming that
3947 ssl3_read_bytes() found application data while handshake
3948 processing was enabled when in fact s->s3->in_read_app_data was
3949 merely automatically cleared during the initial handshake.
3950 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3952 *) Fix object definitions for Private and Enterprise: they were not
3953 recognized in their shortname (=lowercase) representation. Extend
3954 obj_dat.pl to issue an error when using undefined keywords instead
3955 of silently ignoring the problem (Svenning Sorensen
3956 <sss@sss.dnsalias.net>).
3959 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3960 generators, i.e. generators other than 2 and 5. (Previously, the
3961 code did not properly initialise the 'add' and 'rem' values to
3962 BN_generate_prime().)
3964 In the new general case, we do not insist that 'generator' is
3965 actually a primitive root: This requirement is rather pointless;
3966 a generator of the order-q subgroup is just as good, if not
3970 *) Map new X509 verification errors to alerts. Discovered and submitted by
3971 Tom Wu <tom@arcot.com>.
3974 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3975 returning non-zero before the data has been completely received
3976 when using non-blocking I/O.
3977 [Bodo Moeller; problem pointed out by John Hughes]
3979 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3980 [Ben Laurie, Lutz Jaenicke]
3982 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3983 Yoram Zahavi <YoramZ@gilian.com>).
3986 *) Add information about CygWin 1.3 and on, and preserve proper
3987 configuration for the versions before that.
3988 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3990 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3991 check whether we deal with a copy of a session and do not delete from
3992 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3993 <izhar@checkpoint.com>.
3996 *) Do not store session data into the internal session cache, if it
3997 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3998 flag is set). Proposed by Aslam <aslam@funk.com>.
4001 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4005 *) [In 0.9.6d-engine release:]
4006 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4007 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4009 *) Add the configuration target linux-s390x.
4010 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4012 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4013 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4014 variable as an indication that a ClientHello message has been
4015 received. As the flag value will be lost between multiple
4016 invocations of ssl3_accept when using non-blocking I/O, the
4017 function may not be aware that a handshake has actually taken
4018 place, thus preventing a new session from being added to the
4021 To avoid this problem, we now set s->new_session to 2 instead of
4022 using a local variable.
4023 [Lutz Jaenicke, Bodo Moeller]
4025 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4026 if the SSL_R_LENGTH_MISMATCH error is detected.
4027 [Geoff Thorpe, Bodo Moeller]
4029 *) New 'shared_ldflag' column in Configure platform table.
4032 *) Fix EVP_CIPHER_mode macro.
4033 ["Dan S. Camper" <dan@bti.net>]
4035 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4036 type, we must throw them away by setting rr->length to 0.
4037 [D P Chang <dpc@qualys.com>]
4039 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4041 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4042 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4043 worked incorrectly for those cases where range = 10..._2 and
4044 3*range is two bits longer than range.)
4047 *) Only add signing time to PKCS7 structures if it is not already
4051 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4052 OBJ_ld_ce should be OBJ_id_ce.
4053 Also some ip-pda OIDs in crypto/objects/objects.txt were
4054 incorrect (cf. RFC 3039).
4055 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4057 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4058 returns early because it has nothing to do.
4059 [Andy Schneider <andy.schneider@bjss.co.uk>]
4061 *) [In 0.9.6c-engine release:]
4062 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4063 [Andy Schneider <andy.schneider@bjss.co.uk>]
4065 *) [In 0.9.6c-engine release:]
4066 Add support for Cryptographic Appliance's keyserver technology.
4067 (Use engine 'keyclient')
4068 [Cryptographic Appliances and Geoff Thorpe]
4070 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4071 is called via tools/c89.sh because arguments have to be
4072 rearranged (all '-L' options must appear before the first object
4074 [Richard Shapiro <rshapiro@abinitio.com>]
4076 *) [In 0.9.6c-engine release:]
4077 Add support for Broadcom crypto accelerator cards, backported
4079 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4081 *) [In 0.9.6c-engine release:]
4082 Add support for SureWare crypto accelerator cards from
4083 Baltimore Technologies. (Use engine 'sureware')
4084 [Baltimore Technologies and Mark Cox]
4086 *) [In 0.9.6c-engine release:]
4087 Add support for crypto accelerator cards from Accelerated
4088 Encryption Processing, www.aep.ie. (Use engine 'aep')
4089 [AEP Inc. and Mark Cox]
4091 *) Add a configuration entry for gcc on UnixWare.
4092 [Gary Benson <gbenson@redhat.com>]
4094 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4095 messages are stored in a single piece (fixed-length part and
4096 variable-length part combined) and fix various bugs found on the way.
4099 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4100 instead. BIO_gethostbyname() does not know what timeouts are
4101 appropriate, so entries would stay in cache even when they have
4103 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4105 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4106 faced with a pathologically small ClientHello fragment that does
4107 not contain client_version: Instead of aborting with an error,
4108 simply choose the highest available protocol version (i.e.,
4109 TLS 1.0 unless it is disabled). In practice, ClientHello
4110 messages are never sent like this, but this change gives us
4111 strictly correct behaviour at least for TLS.
4114 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4115 never resets s->method to s->ctx->method when called from within
4116 one of the SSL handshake functions.
4117 [Bodo Moeller; problem pointed out by Niko Baric]
4119 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4120 (sent using the client's version number) if client_version is
4121 smaller than the protocol version in use. Also change
4122 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4123 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4124 the client will at least see that alert.
4127 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4131 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4132 client receives HelloRequest while in a handshake.
4133 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4135 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4136 should end in 'break', not 'goto end' which circuments various
4137 cleanups done in state SSL_ST_OK. But session related stuff
4138 must be disabled for SSL_ST_OK in the case that we just sent a
4141 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4142 before just sending a HelloRequest.
4143 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4145 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4146 reveal whether illegal block cipher padding was found or a MAC
4147 verification error occured. (Neither SSLerr() codes nor alerts
4148 are directly visible to potential attackers, but the information
4149 may leak via logfiles.)
4151 Similar changes are not required for the SSL 2.0 implementation
4152 because the number of padding bytes is sent in clear for SSL 2.0,
4153 and the extra bytes are just ignored. However ssl/s2_pkt.c
4154 failed to verify that the purported number of padding bytes is in
4158 *) Add OpenUNIX-8 support including shared libraries
4159 (Boyd Lynn Gerber <gerberb@zenez.com>).
4162 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4163 'wristwatch attack' using huge encoding parameters (cf.
4164 James H. Manger's CRYPTO 2001 paper). Note that the
4165 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4166 encoding parameters and hence was not vulnerable.
4169 *) BN_sqr() bug fix.
4170 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4172 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4173 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4174 followed by modular reduction.
4175 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4177 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4178 equivalent based on BN_pseudo_rand() instead of BN_rand().
4181 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4182 This function was broken, as the check for a new client hello message
4183 to handle SGC did not allow these large messages.
4184 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4187 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4190 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4191 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4194 *) Rework the configuration and shared library support for Tru64 Unix.
4195 The configuration part makes use of modern compiler features and
4196 still retains old compiler behavior for those that run older versions
4197 of the OS. The shared library support part includes a variant that
4198 uses the RPATH feature, and is available through the special
4199 configuration target "alpha-cc-rpath", which will never be selected
4201 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4203 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4204 with the same message size as in ssl3_get_certificate_request().
4205 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4206 messages might inadvertently be reject as too long.
4207 [Petr Lampa <lampa@fee.vutbr.cz>]
4209 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4212 *) Modified SSL library such that the verify_callback that has been set
4213 specificly for an SSL object with SSL_set_verify() is actually being
4214 used. Before the change, a verify_callback set with this function was
4215 ignored and the verify_callback() set in the SSL_CTX at the time of
4216 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4217 to allow the necessary settings.
4220 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4221 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4222 done automatically (in contradiction to the requirements of the C
4223 standard). This made problems when used from OpenSSH.
4226 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4227 dh->length and always used
4229 BN_rand_range(priv_key, dh->p).
4231 BN_rand_range() is not necessary for Diffie-Hellman, and this
4232 specific range makes Diffie-Hellman unnecessarily inefficient if
4233 dh->length (recommended exponent length) is much smaller than the
4234 length of dh->p. We could use BN_rand_range() if the order of
4235 the subgroup was stored in the DH structure, but we only have
4240 BN_rand(priv_key, l, ...)
4242 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4248 RSA_eay_public_encrypt
4249 RSA_eay_private_decrypt
4250 RSA_eay_private_encrypt (signing)
4251 RSA_eay_public_decrypt (signature verification)
4253 (default implementations for RSA_public_encrypt,
4254 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4255 always reject numbers >= n.
4258 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4259 to synchronize access to 'locking_thread'. This is necessary on
4260 systems where access to 'locking_thread' (an 'unsigned long'
4261 variable) is not atomic.
4264 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4265 *before* setting the 'crypto_lock_rand' flag. The previous code had
4266 a race condition if 0 is a valid thread ID.
4267 [Travis Vitek <vitek@roguewave.com>]
4269 *) Add support for shared libraries under Irix.
4270 [Albert Chin-A-Young <china@thewrittenword.com>]
4272 *) Add configuration option to build on Linux on both big-endian and
4274 [Ralf Baechle <ralf@uni-koblenz.de>]
4276 *) Add the possibility to create shared libraries on HP-UX.
4279 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4281 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4282 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4283 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4284 PRNG state recovery was possible based on the output of
4285 one PRNG request appropriately sized to gain knowledge on
4286 'md' followed by enough consecutive 1-byte PRNG requests
4287 to traverse all of 'state'.
4289 1. When updating 'md_local' (the current thread's copy of 'md')
4290 during PRNG output generation, hash all of the previous
4291 'md_local' value, not just the half used for PRNG output.
4293 2. Make the number of bytes from 'state' included into the hash
4294 independent from the number of PRNG bytes requested.
4296 The first measure alone would be sufficient to avoid
4297 Markku-Juhani's attack. (Actually it had never occurred
4298 to me that the half of 'md_local' used for chaining was the
4299 half from which PRNG output bytes were taken -- I had always
4300 assumed that the secret half would be used.) The second
4301 measure makes sure that additional data from 'state' is never
4302 mixed into 'md_local' in small portions; this heuristically
4303 further strengthens the PRNG.
4306 *) Fix crypto/bn/asm/mips3.s.
4309 *) When only the key is given to "enc", the IV is undefined. Print out
4310 an error message in this case.
4313 *) Handle special case when X509_NAME is empty in X509 printing routines.
4316 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4317 positive and less than q.
4320 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4321 used: it isn't thread safe and the add_lock_callback should handle
4323 [Paul Rose <Paul.Rose@bridge.com>]
4325 *) Verify that incoming data obeys the block size in
4326 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4330 [Ulf Möller, Bodo Möller]
4332 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4333 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4334 when fixing the server behaviour for backwards-compatible 'client
4335 hello' messages. (Note that the attack is impractical against
4336 SSL 3.0 and TLS 1.0 anyway because length and version checking
4337 means that the probability of guessing a valid ciphertext is
4338 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4341 Before 0.9.5, the countermeasure (hide the error by generating a
4342 random 'decryption result') did not work properly because
4343 ERR_clear_error() was missing, meaning that SSL_get_error() would
4344 detect the supposedly ignored error.
4346 Both problems are now fixed.
4349 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4350 (previously it was 1024).
4353 *) Fix for compatibility mode trust settings: ignore trust settings
4354 unless some valid trust or reject settings are present.
4357 *) Fix for blowfish EVP: its a variable length cipher.
4360 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4361 parameters in DSA public key structures and return an error in the
4362 DSA routines if parameters are absent.
4365 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4366 in the current directory if neither $RANDFILE nor $HOME was set.
4367 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4368 caused some confusion to Windows users who haven't defined $HOME.
4369 Thus RAND_file_name() is changed again: e_os.h can define a
4370 DEFAULT_HOME, which will be used if $HOME is not set.
4371 For Windows, we use "C:"; on other platforms, we still require
4372 environment variables.
4374 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4375 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4376 having multiple threads call RAND_poll() concurrently.
4379 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4380 combination of a flag and a thread ID variable.
4381 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4382 flag), *other* threads can enter ssleay_add_bytes without obeying
4383 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4384 that they do not hold after the first thread unsets add_do_not_lock).
4387 *) Change bctest again: '-x' expressions are not available in all
4391 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4393 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4394 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4396 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4397 the default extension for executables, if any. Also, make the perl
4398 scripts that use symlink() to test if it really exists and use "cp"
4399 if it doesn't. All this made OpenSSL compilable and installable in
4403 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4404 If SEQUENCE is length is indefinite just set c->slen to the total
4405 amount of data available.
4406 [Steve Henson, reported by shige@FreeBSD.org]
4407 [This change does not apply to 0.9.7.]
4409 *) Change bctest to avoid here-documents inside command substitution
4410 (workaround for FreeBSD /bin/sh bug).
4411 For compatibility with Ultrix, avoid shell functions (introduced
4412 in the bctest version that searches along $PATH).
4415 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4416 with des_encrypt() defined on some operating systems, like Solaris
4420 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4421 On the Importance of Eliminating Errors in Cryptographic
4422 Computations, J. Cryptology 14 (2001) 2, 101-119,
4423 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4426 *) MIPS assembler BIGNUM division bug fix.
4429 *) Disabled incorrect Alpha assembler code.
4432 *) Fix PKCS#7 decode routines so they correctly update the length
4433 after reading an EOC for the EXPLICIT tag.
4435 [This change does not apply to 0.9.7.]
4437 *) Fix bug in PKCS#12 key generation routines. This was triggered
4438 if a 3DES key was generated with a 0 initial byte. Include
4439 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4440 (but broken) behaviour.
4443 *) Enhance bctest to search for a working bc along $PATH and print
4445 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4447 *) Fix memory leaks in err.c: free err_data string if necessary;
4448 don't write to the wrong index in ERR_set_error_data.
4451 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4455 *) Replace rdtsc with _emit statements for VC++ version 5.
4456 [Jeremy Cooper <jeremy@baymoo.org>]
4458 *) Make it possible to reuse SSLv2 sessions.
4461 *) In copy_email() check for >= 0 as a return value for
4462 X509_NAME_get_index_by_NID() since 0 is a valid index.
4463 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4465 *) Avoid coredump with unsupported or invalid public keys by checking if
4466 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4467 PKCS7_verify() fails with non detached data.
4470 *) Don't use getenv in library functions when run as setuid/setgid.
4471 New function OPENSSL_issetugid().
4474 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4475 due to incorrect handling of multi-threading:
4477 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4479 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4481 3. Count how many times MemCheck_off() has been called so that
4482 nested use can be treated correctly. This also avoids
4483 inband-signalling in the previous code (which relied on the
4484 assumption that thread ID 0 is impossible).
4487 *) Add "-rand" option also to s_client and s_server.
4490 *) Fix CPU detection on Irix 6.x.
4491 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4492 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4494 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4497 [This change does not apply to 0.9.7.]
4499 *) Use the cached encoding of an X509_NAME structure rather than
4500 copying it. This is apparently the reason for the libsafe "errors"
4501 but the code is actually correct.
4504 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4505 Bleichenbacher's DSA attack.
4506 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4507 to be set and top=0 forces the highest bit to be set; top=-1 is new
4508 and leaves the highest bit random.
4509 [Ulf Moeller, Bodo Moeller]
4511 *) In the NCONF_...-based implementations for CONF_... queries
4512 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4513 a temporary CONF structure with the data component set to NULL
4514 (which gives segmentation faults in lh_retrieve).
4515 Instead, use NULL for the CONF pointer in CONF_get_string and
4516 CONF_get_number (which may use environment variables) and directly
4517 return NULL from CONF_get_section.
4520 *) Fix potential buffer overrun for EBCDIC.
4523 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4524 keyUsage if basicConstraints absent for a CA.
4527 *) Make SMIME_write_PKCS7() write mail header values with a format that
4528 is more generally accepted (no spaces before the semicolon), since
4529 some programs can't parse those values properly otherwise. Also make
4530 sure BIO's that break lines after each write do not create invalid
4534 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4535 macros previously used would not encode an empty SEQUENCE OF
4536 and break the signature.
4538 [This change does not apply to 0.9.7.]
4540 *) Zero the premaster secret after deriving the master secret in
4544 *) Add some EVP_add_digest_alias registrations (as found in
4545 OpenSSL_add_all_digests()) to SSL_library_init()
4546 aka OpenSSL_add_ssl_algorithms(). This provides improved
4547 compatibility with peers using X.509 certificates
4548 with unconventional AlgorithmIdentifier OIDs.
4551 *) Fix for Irix with NO_ASM.
4552 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4554 *) ./config script fixes.
4555 [Ulf Moeller, Richard Levitte]
4557 *) Fix 'openssl passwd -1'.
4560 *) Change PKCS12_key_gen_asc() so it can cope with non null
4561 terminated strings whose length is passed in the passlen
4562 parameter, for example from PEM callbacks. This was done
4563 by adding an extra length parameter to asc2uni().
4564 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4566 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4567 call failed, free the DSA structure.
4570 *) Fix to uni2asc() to cope with zero length Unicode strings.
4571 These are present in some PKCS#12 files.
4574 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4575 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4576 when writing a 32767 byte record.
4577 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4579 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4580 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4582 (RSA objects have a reference count access to which is protected
4583 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4584 so they are meant to be shared between threads.)
4585 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4586 "Reddie, Steven" <Steven.Reddie@ca.com>]
4588 *) Fix a deadlock in CRYPTO_mem_leaks().
4591 *) Use better test patterns in bntest.
4594 *) rand_win.c fix for Borland C.
4597 *) BN_rshift bugfix for n == 0.
4600 *) Add a 'bctest' script that checks for some known 'bc' bugs
4601 so that 'make test' does not abort just because 'bc' is broken.
4604 *) Store verify_result within SSL_SESSION also for client side to
4605 avoid potential security hole. (Re-used sessions on the client side
4606 always resulted in verify_result==X509_V_OK, not using the original
4607 result of the server certificate verification.)
4610 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4611 SSL3_RT_APPLICATION_DATA, return 0.
4612 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4616 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4617 releases, have been re-implemented by renaming the previous
4618 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4619 and ssl3_read_internal, respectively, and adding 'peek' parameters
4620 to them. The new ssl[23]_{read,peek} functions are calls to
4621 ssl[23]_read_internal with the 'peek' flag set appropriately.
4622 A 'peek' parameter has also been added to ssl3_read_bytes, which
4623 does the actual work for ssl3_read_internal.
4626 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4627 the method-specific "init()" handler. Also clean up ex_data after
4628 calling the method-specific "finish()" handler. Previously, this was
4629 happening the other way round.
4632 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4633 The previous value, 12, was not always sufficient for BN_mod_exp().
4636 *) Make sure that shared libraries get the internal name engine with
4637 the full version number and not just 0. This should mark the
4638 shared libraries as not backward compatible. Of course, this should
4639 be changed again when we can guarantee backward binary compatibility.
4642 *) Fix typo in get_cert_by_subject() in by_dir.c
4643 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4645 *) Rework the system to generate shared libraries:
4647 - Make note of the expected extension for the shared libraries and
4648 if there is a need for symbolic links from for example libcrypto.so.0
4649 to libcrypto.so.0.9.7. There is extended info in Configure for
4652 - Make as few rebuilds of the shared libraries as possible.
4654 - Still avoid linking the OpenSSL programs with the shared libraries.
4656 - When installing, install the shared libraries separately from the
4660 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4662 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4663 and not in SSL_clear because the latter is also used by the
4664 accept/connect functions; previously, the settings made by
4665 SSL_set_read_ahead would be lost during the handshake.
4666 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4668 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4669 Previously, it would create entries for disableed algorithms no
4673 *) Added several new manual pages for SSL_* function.
4676 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4678 *) In ssl23_get_client_hello, generate an error message when faced
4679 with an initial SSL 3.0/TLS record that is too small to contain the
4680 first two bytes of the ClientHello message, i.e. client_version.
4681 (Note that this is a pathologic case that probably has never happened
4682 in real life.) The previous approach was to use the version number
4683 from the record header as a substitute; but our protocol choice
4684 should not depend on that one because it is not authenticated
4685 by the Finished messages.
4688 *) More robust randomness gathering functions for Windows.
4689 [Jeffrey Altman <jaltman@columbia.edu>]
4691 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4692 not set then we don't setup the error code for issuer check errors
4693 to avoid possibly overwriting other errors which the callback does
4694 handle. If an application does set the flag then we assume it knows
4695 what it is doing and can handle the new informational codes
4699 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4700 a general "ANY" type, as such it should be able to decode anything
4701 including tagged types. However it didn't check the class so it would
4702 wrongly interpret tagged types in the same way as their universal
4703 counterpart and unknown types were just rejected. Changed so that the
4704 tagged and unknown types are handled in the same way as a SEQUENCE:
4705 that is the encoding is stored intact. There is also a new type
4706 "V_ASN1_OTHER" which is used when the class is not universal, in this
4707 case we have no idea what the actual type is so we just lump them all
4711 *) On VMS, stdout may very well lead to a file that is written to
4712 in a record-oriented fashion. That means that every write() will
4713 write a separate record, which will be read separately by the
4714 programs trying to read from it. This can be very confusing.
4716 The solution is to put a BIO filter in the way that will buffer
4717 text until a linefeed is reached, and then write everything a
4718 line at a time, so every record written will be an actual line,
4719 not chunks of lines and not (usually doesn't happen, but I've
4720 seen it once) several lines in one record. BIO_f_linebuffer() is
4723 Currently, it's a VMS-only method, because that's where it has
4724 been tested well enough.
4727 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4728 it can return incorrect results.
4729 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4730 but it was in 0.9.6-beta[12].)
4733 *) Disable the check for content being present when verifying detached
4734 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4735 include zero length content when signing messages.
4738 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4739 BIO_ctrl (for BIO pairs).
4742 *) Add DSO method for VMS.
4745 *) Bug fix: Montgomery multiplication could produce results with the
4749 *) Add RPM specification openssl.spec and modify it to build three
4750 packages. The default package contains applications, application
4751 documentation and run-time libraries. The devel package contains
4752 include files, static libraries and function documentation. The
4753 doc package contains the contents of the doc directory. The original
4754 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4757 *) Add a large number of documentation files for many SSL routines.
4758 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4760 *) Add a configuration entry for Sony News 4.
4761 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4763 *) Don't set the two most significant bits to one when generating a
4764 random number < q in the DSA library.
4767 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4768 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4769 the underlying transport is blocking) if a handshake took place.
4770 (The default behaviour is needed by applications such as s_client
4771 and s_server that use select() to determine when to use SSL_read;
4772 but for applications that know in advance when to expect data, it
4773 just makes things more complicated.)
4776 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4780 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4781 work better on such systems.
4782 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4784 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4785 Update PKCS12_parse() so it copies the friendlyName and the
4786 keyid to the certificates aux info.
4789 *) Fix bug in PKCS7_verify() which caused an infinite loop
4790 if there was more than one signature.
4791 [Sven Uszpelkat <su@celocom.de>]
4793 *) Major change in util/mkdef.pl to include extra information
4794 about each symbol, as well as presentig variables as well
4795 as functions. This change means that there's n more need
4796 to rebuild the .num files when some algorithms are excluded.
4799 *) Allow the verify time to be set by an application,
4800 rather than always using the current time.
4803 *) Phase 2 verify code reorganisation. The certificate
4804 verify code now looks up an issuer certificate by a
4805 number of criteria: subject name, authority key id
4806 and key usage. It also verifies self signed certificates
4807 by the same criteria. The main comparison function is
4808 X509_check_issued() which performs these checks.
4810 Lot of changes were necessary in order to support this
4811 without completely rewriting the lookup code.
4813 Authority and subject key identifier are now cached.
4815 The LHASH 'certs' is X509_STORE has now been replaced
4816 by a STACK_OF(X509_OBJECT). This is mainly because an
4817 LHASH can't store or retrieve multiple objects with
4818 the same hash value.
4820 As a result various functions (which were all internal
4821 use only) have changed to handle the new X509_STORE
4822 structure. This will break anything that messed round
4823 with X509_STORE internally.
4825 The functions X509_STORE_add_cert() now checks for an
4826 exact match, rather than just subject name.
4828 The X509_STORE API doesn't directly support the retrieval
4829 of multiple certificates matching a given criteria, however
4830 this can be worked round by performing a lookup first
4831 (which will fill the cache with candidate certificates)
4832 and then examining the cache for matches. This is probably
4833 the best we can do without throwing out X509_LOOKUP
4834 entirely (maybe later...).
4836 The X509_VERIFY_CTX structure has been enhanced considerably.
4838 All certificate lookup operations now go via a get_issuer()
4839 callback. Although this currently uses an X509_STORE it
4840 can be replaced by custom lookups. This is a simple way
4841 to bypass the X509_STORE hackery necessary to make this
4842 work and makes it possible to use more efficient techniques
4843 in future. A very simple version which uses a simple
4844 STACK for its trusted certificate store is also provided
4845 using X509_STORE_CTX_trusted_stack().
4847 The verify_cb() and verify() callbacks now have equivalents
4848 in the X509_STORE_CTX structure.
4850 X509_STORE_CTX also has a 'flags' field which can be used
4851 to customise the verify behaviour.
4854 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4855 excludes S/MIME capabilities.
4858 *) When a certificate request is read in keep a copy of the
4859 original encoding of the signed data and use it when outputing
4860 again. Signatures then use the original encoding rather than
4861 a decoded, encoded version which may cause problems if the
4862 request is improperly encoded.
4865 *) For consistency with other BIO_puts implementations, call
4866 buffer_write(b, ...) directly in buffer_puts instead of calling
4869 In BIO_puts, increment b->num_write as in BIO_write.
4870 [Peter.Sylvester@EdelWeb.fr]
4872 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4873 BN_zero, we may not return a BIGNUM with an array consisting of
4877 *) Avoid calling abort() from within the library when problems are
4878 detected, except if preprocessor symbols have been defined
4879 (such as REF_CHECK, BN_DEBUG etc.).
4882 *) New openssl application 'rsautl'. This utility can be
4883 used for low level RSA operations. DER public key
4884 BIO/fp routines also added.
4887 *) New Configure entry and patches for compiling on QNX 4.
4888 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4890 *) A demo state-machine implementation was sponsored by
4891 Nuron (http://www.nuron.com/) and is now available in
4892 demos/state_machine.
4895 *) New options added to the 'dgst' utility for signature
4896 generation and verification.
4899 *) Unrecognized PKCS#7 content types are now handled via a
4900 catch all ASN1_TYPE structure. This allows unsupported
4901 types to be stored as a "blob" and an application can
4902 encode and decode it manually.
4905 *) Fix various signed/unsigned issues to make a_strex.c
4907 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4909 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4910 length if passed a buffer. ASN1_INTEGER_to_BN failed
4911 if passed a NULL BN and its argument was negative.
4912 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4914 *) Modification to PKCS#7 encoding routines to output definite
4915 length encoding. Since currently the whole structures are in
4916 memory there's not real point in using indefinite length
4917 constructed encoding. However if OpenSSL is compiled with
4918 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4921 *) Added BIO_vprintf() and BIO_vsnprintf().
4924 *) Added more prefixes to parse for in the the strings written
4925 through a logging bio, to cover all the levels that are available
4926 through syslog. The prefixes are now:
4928 PANIC, EMERG, EMR => LOG_EMERG
4929 ALERT, ALR => LOG_ALERT
4930 CRIT, CRI => LOG_CRIT
4931 ERROR, ERR => LOG_ERR
4932 WARNING, WARN, WAR => LOG_WARNING
4933 NOTICE, NOTE, NOT => LOG_NOTICE
4934 INFO, INF => LOG_INFO
4935 DEBUG, DBG => LOG_DEBUG
4937 and as before, if none of those prefixes are present at the
4938 beginning of the string, LOG_ERR is chosen.
4940 On Win32, the LOG_* levels are mapped according to this:
4942 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4943 LOG_WARNING => EVENTLOG_WARNING_TYPE
4944 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4948 *) Made it possible to reconfigure with just the configuration
4949 argument "reconf" or "reconfigure". The command line arguments
4950 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4951 and are retrieved from there when reconfiguring.
4955 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4957 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4960 *) The obj_dat.pl script was messing up the sorting of object
4961 names. The reason was that it compared the quoted version
4962 of strings as a result "OCSP" > "OCSP Signing" because
4963 " > SPACE. Changed script to store unquoted versions of
4964 names and add quotes on output. It was also omitting some
4965 names from the lookup table if they were given a default
4966 value (that is if SN is missing it is given the same
4967 value as LN and vice versa), these are now added on the
4968 grounds that if an object has a name we should be able to
4969 look it up. Finally added warning output when duplicate
4970 short or long names are found.
4973 *) Changes needed for Tandem NSK.
4974 [Scott Uroff <scott@xypro.com>]
4976 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4977 RSA_padding_check_SSLv23(), special padding was never detected
4978 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4979 version rollback attacks was not effective.
4981 In s23_clnt.c, don't use special rollback-attack detection padding
4982 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4983 client; similarly, in s23_srvr.c, don't do the rollback check if
4984 SSL 2.0 is the only protocol enabled in the server.
4987 *) Make it possible to get hexdumps of unprintable data with 'openssl
4988 asn1parse'. By implication, the functions ASN1_parse_dump() and
4989 BIO_dump_indent() are added.
4992 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4993 these print out strings and name structures based on various
4994 flags including RFC2253 support and proper handling of
4995 multibyte characters. Added options to the 'x509' utility
4996 to allow the various flags to be set.
4999 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5000 Also change the functions X509_cmp_current_time() and
5001 X509_gmtime_adj() work with an ASN1_TIME structure,
5002 this will enable certificates using GeneralizedTime in validity
5003 dates to be checked.
5006 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5007 negative public key encodings) on by default,
5008 NO_NEG_PUBKEY_BUG can be set to disable it.
5011 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5012 content octets. An i2c_ASN1_OBJECT is unnecessary because
5013 the encoding can be trivially obtained from the structure.
5016 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5017 not read locks (CRYPTO_r_[un]lock).
5020 *) A first attempt at creating official support for shared
5021 libraries through configuration. I've kept it so the
5022 default is static libraries only, and the OpenSSL programs
5023 are always statically linked for now, but there are
5024 preparations for dynamic linking in place.
5025 This has been tested on Linux and Tru64.
5028 *) Randomness polling function for Win9x, as described in:
5029 Peter Gutmann, Software Generation of Practically Strong
5033 *) Fix so PRNG is seeded in req if using an already existing
5037 *) New options to smime application. -inform and -outform
5038 allow alternative formats for the S/MIME message including
5039 PEM and DER. The -content option allows the content to be
5040 specified separately. This should allow things like Netscape
5041 form signing output easier to verify.
5044 *) Fix the ASN1 encoding of tags using the 'long form'.
5047 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5048 STRING types. These convert content octets to and from the
5049 underlying type. The actual tag and length octets are
5050 already assumed to have been read in and checked. These
5051 are needed because all other string types have virtually
5052 identical handling apart from the tag. By having versions
5053 of the ASN1 functions that just operate on content octets
5054 IMPLICIT tagging can be handled properly. It also allows
5055 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5056 and ASN1_INTEGER are identical apart from the tag.
5059 *) Change the handling of OID objects as follows:
5061 - New object identifiers are inserted in objects.txt, following
5062 the syntax given in objects.README.
5063 - objects.pl is used to process obj_mac.num and create a new
5065 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5068 This is currently kind of a hack, and the perl code in objects.pl
5069 isn't very elegant, but it works as I intended. The simplest way
5070 to check that it worked correctly is to look in obj_dat.h and
5071 check the array nid_objs and make sure the objects haven't moved
5072 around (this is important!). Additions are OK, as well as
5073 consistent name changes.
5076 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5079 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5080 The given file adds to whatever has already been seeded into the
5081 random pool through the RANDFILE configuration file option or
5082 environment variable, or the default random state file.
5085 *) mkstack.pl now sorts each macro group into lexical order.
5086 Previously the output order depended on the order the files
5087 appeared in the directory, resulting in needless rewriting
5091 *) Patches to make OpenSSL compile under Win32 again. Mostly
5092 work arounds for the VC++ problem that it treats func() as
5093 func(void). Also stripped out the parts of mkdef.pl that
5094 added extra typesafe functions: these no longer exist.
5097 *) Reorganisation of the stack code. The macros are now all
5098 collected in safestack.h . Each macro is defined in terms of
5099 a "stack macro" of the form SKM_<name>(type, a, b). The
5100 DEBUG_SAFESTACK is now handled in terms of function casts,
5101 this has the advantage of retaining type safety without the
5102 use of additional functions. If DEBUG_SAFESTACK is not defined
5103 then the non typesafe macros are used instead. Also modified the
5104 mkstack.pl script to handle the new form. Needs testing to see
5105 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5106 the default if no major problems. Similar behaviour for ASN1_SET_OF
5107 and PKCS12_STACK_OF.
5110 *) When some versions of IIS use the 'NET' form of private key the
5111 key derivation algorithm is different. Normally MD5(password) is
5112 used as a 128 bit RC4 key. In the modified case
5113 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5114 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5115 as the old Netscape_RSA functions except they have an additional
5116 'sgckey' parameter which uses the modified algorithm. Also added
5117 an -sgckey command line option to the rsa utility. Thanks to
5118 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5119 algorithm to openssl-dev.
5122 *) The evp_local.h macros were using 'c.##kname' which resulted in
5123 invalid expansion on some systems (SCO 5.0.5 for example).
5124 Corrected to 'c.kname'.
5125 [Phillip Porch <root@theporch.com>]
5127 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5128 a STACK of email addresses from a certificate or request, these look
5129 in the subject name and the subject alternative name extensions and
5130 omit any duplicate addresses.
5133 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5134 This makes DSA verification about 2 % faster.
5137 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5138 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5139 plus overhead for 1024 bit moduli).
5140 This makes exponentiations about 0.5 % faster for 1024 bit
5141 exponents (as measured by "openssl speed rsa2048").
5144 *) Rename memory handling macros to avoid conflicts with other
5146 Malloc => OPENSSL_malloc
5147 Malloc_locked => OPENSSL_malloc_locked
5148 Realloc => OPENSSL_realloc
5149 Free => OPENSSL_free
5152 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5153 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5156 *) CygWin32 support.
5157 [John Jarvie <jjarvie@newsguy.com>]
5159 *) The type-safe stack code has been rejigged. It is now only compiled
5160 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5161 by default all type-specific stack functions are "#define"d back to
5162 standard stack functions. This results in more streamlined output
5163 but retains the type-safety checking possibilities of the original
5167 *) The STACK code has been cleaned up, and certain type declarations
5168 that didn't make a lot of sense have been brought in line. This has
5169 also involved a cleanup of sorts in safestack.h to more correctly
5170 map type-safe stack functions onto their plain stack counterparts.
5171 This work has also resulted in a variety of "const"ifications of
5172 lots of the code, especially "_cmp" operations which should normally
5173 be prototyped with "const" parameters anyway.
5176 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5177 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5178 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5179 where all of 'md' is used each time the PRNG is used, but 'state'
5180 is used only indexed by a cyclic counter. As entropy may not be
5181 well distributed from the beginning, 'md' is important as a
5182 chaining variable. However, the output function chains only half
5183 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5184 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5185 in all of 'state' being rewritten, with the new values depending
5186 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5189 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5190 the handshake is continued after ssl_verify_cert_chain();
5191 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5192 can lead to 'unexplainable' connection aborts later.
5193 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5195 *) Major EVP API cipher revision.
5196 Add hooks for extra EVP features. This allows various cipher
5197 parameters to be set in the EVP interface. Support added for variable
5198 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5199 setting of RC2 and RC5 parameters.
5201 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5204 Remove lots of duplicated code from the EVP library. For example *every*
5205 cipher init() function handles the 'iv' in the same way according to the
5206 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5207 for CFB and OFB modes they zero ctx->num.
5209 New functionality allows removal of S/MIME code RC2 hack.
5211 Most of the routines have the same form and so can be declared in terms
5214 By shifting this to the top level EVP_CipherInit() it can be removed from
5215 all individual ciphers. If the cipher wants to handle IVs or keys
5216 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5219 Change lots of functions like EVP_EncryptUpdate() to now return a
5220 value: although software versions of the algorithms cannot fail
5221 any installed hardware versions can.
5224 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5225 this option is set, tolerate broken clients that send the negotiated
5226 protocol version number instead of the requested protocol version
5230 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5231 i.e. non-zero for export ciphersuites, zero otherwise.
5232 Previous versions had this flag inverted, inconsistent with
5233 rsa_tmp_cb (..._TMP_RSA_CB).
5234 [Bodo Moeller; problem reported by Amit Chopra]
5236 *) Add missing DSA library text string. Work around for some IIS
5237 key files with invalid SEQUENCE encoding.
5240 *) Add a document (doc/standards.txt) that list all kinds of standards
5241 and so on that are implemented in OpenSSL.
5244 *) Enhance c_rehash script. Old version would mishandle certificates
5245 with the same subject name hash and wouldn't handle CRLs at all.
5246 Added -fingerprint option to crl utility, to support new c_rehash
5250 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5253 *) Fix for SSL server purpose checking. Server checking was
5254 rejecting certificates which had extended key usage present
5255 but no ssl client purpose.
5256 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5258 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5259 is a little unclear about how a blank password is handled.
5260 Since the password in encoded as a BMPString with terminating
5261 double NULL a zero length password would end up as just the
5262 double NULL. However no password at all is different and is
5263 handled differently in the PKCS#12 key generation code. NS
5264 treats a blank password as zero length. MSIE treats it as no
5265 password on export: but it will try both on import. We now do
5266 the same: PKCS12_parse() tries zero length and no password if
5267 the password is set to "" or NULL (NULL is now a valid password:
5268 it wasn't before) as does the pkcs12 application.
5271 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5272 perror when PEM_read_bio_X509_REQ fails, the error message must
5273 be obtained from the error queue.
5276 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5277 it in ERR_remove_state if appropriate, and change ERR_get_state
5278 accordingly to avoid race conditions (this is necessary because
5279 thread_hash is no longer constant once set).
5282 *) Bugfix for linux-elf makefile.one.
5285 *) RSA_get_default_method() will now cause a default
5286 RSA_METHOD to be chosen if one doesn't exist already.
5287 Previously this was only set during a call to RSA_new()
5288 or RSA_new_method(NULL) meaning it was possible for
5289 RSA_get_default_method() to return NULL.
5292 *) Added native name translation to the existing DSO code
5293 that will convert (if the flag to do so is set) filenames
5294 that are sufficiently small and have no path information
5295 into a canonical native form. Eg. "blah" converted to
5296 "libblah.so" or "blah.dll" etc.
5299 *) New function ERR_error_string_n(e, buf, len) which is like
5300 ERR_error_string(e, buf), but writes at most 'len' bytes
5301 including the 0 terminator. For ERR_error_string_n, 'buf'
5303 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5305 *) CONF library reworked to become more general. A new CONF
5306 configuration file reader "class" is implemented as well as a
5307 new functions (NCONF_*, for "New CONF") to handle it. The now
5308 old CONF_* functions are still there, but are reimplemented to
5309 work in terms of the new functions. Also, a set of functions
5310 to handle the internal storage of the configuration data is
5311 provided to make it easier to write new configuration file
5312 reader "classes" (I can definitely see something reading a
5313 configuration file in XML format, for example), called _CONF_*,
5314 or "the configuration storage API"...
5316 The new configuration file reading functions are:
5318 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5319 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5321 NCONF_default, NCONF_WIN32
5323 NCONF_dump_fp, NCONF_dump_bio
5325 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5326 NCONF_new creates a new CONF object. This works in the same way
5327 as other interfaces in OpenSSL, like the BIO interface.
5328 NCONF_dump_* dump the internal storage of the configuration file,
5329 which is useful for debugging. All other functions take the same
5330 arguments as the old CONF_* functions wth the exception of the
5331 first that must be a `CONF *' instead of a `LHASH *'.
5333 To make it easer to use the new classes with the old CONF_* functions,
5334 the function CONF_set_default_method is provided.
5337 *) Add '-tls1' option to 'openssl ciphers', which was already
5338 mentioned in the documentation but had not been implemented.
5339 (This option is not yet really useful because even the additional
5340 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5343 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5344 OpenSSL-based applications) load shared libraries and bind to
5345 them in a portable way.
5346 [Geoff Thorpe, with contributions from Richard Levitte]
5348 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5350 *) Make sure _lrotl and _lrotr are only used with MSVC.
5352 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5353 (the default implementation of RAND_status).
5355 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5356 to '-clrext' (= clear extensions), as intended and documented.
5357 [Bodo Moeller; inconsistency pointed out by Michael Attili
5360 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5361 was larger than the MD block size.
5362 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5364 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5365 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5366 using the passed key: if the passed key was a private key the result
5367 of X509_print(), for example, would be to print out all the private key
5371 *) des_quad_cksum() byte order bug fix.
5372 [Ulf Möller, using the problem description in krb4-0.9.7, where
5373 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5375 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5377 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5379 *) For easily testing in shell scripts whether some command
5380 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5381 returns with exit code 0 iff no command of the given name is available.
5382 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5383 the output goes to stdout and nothing is printed to stderr.
5384 Additional arguments are always ignored.
5386 Since for each cipher there is a command of the same name,
5387 the 'no-cipher' compilation switches can be tested this way.
5389 ('openssl no-XXX' is not able to detect pseudo-commands such
5390 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5393 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5396 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5397 is set; it will be thrown away anyway because each handshake creates
5399 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5400 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5401 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5402 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5405 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5406 'Q' and 'R' lose their special meanings (quit/renegotiate).
5407 This is part of what -quiet does; unlike -quiet, -ign_eof
5408 does not suppress any output.
5411 *) Add compatibility options to the purpose and trust code. The
5412 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5413 accepts a certificate or CA, this was the previous behaviour,
5414 with all the associated security issues.
5416 X509_TRUST_COMPAT is the old trust behaviour: only and
5417 automatically trust self signed roots in certificate store. A
5418 new trust setting X509_TRUST_DEFAULT is used to specify that
5419 a purpose has no associated trust setting and it should instead
5420 use the value in the default purpose.
5423 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5424 and fix a memory leak.
5427 *) In util/mkerr.pl (which implements 'make errors'), preserve
5428 reason strings from the previous version of the .c file, as
5429 the default to have only downcase letters (and digits) in
5430 automatically generated reasons codes is not always appropriate.
5433 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5434 using strerror. Previously, ERR_reason_error_string() returned
5435 library names as reason strings for SYSerr; but SYSerr is a special
5436 case where small numbers are errno values, not library numbers.
5439 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5440 converts DSA parameters into DH parameters. (When creating parameters,
5441 DSA_generate_parameters is used.)
5444 *) Include 'length' (recommended exponent length) in C code generated
5445 by 'openssl dhparam -C'.
5448 *) The second argument to set_label in perlasm was already being used
5449 so couldn't be used as a "file scope" flag. Moved to third argument
5453 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5454 instead of RAND_bytes for encryption IVs and salts.
5457 *) Include RAND_status() into RAND_METHOD instead of implementing
5458 it only for md_rand.c Otherwise replacing the PRNG by calling
5459 RAND_set_rand_method would be impossible.
5462 *) Don't let DSA_generate_key() enter an infinite loop if the random
5463 number generation fails.
5466 *) New 'rand' application for creating pseudo-random output.
5469 *) Added configuration support for Linux/IA64
5470 [Rolf Haberrecker <rolf@suse.de>]
5472 *) Assembler module support for Mingw32.
5475 *) Shared library support for HPUX (in shlib/).
5476 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5478 *) Shared library support for Solaris gcc.
5479 [Lutz Behnke <behnke@trustcenter.de>]
5481 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5483 *) PKCS7_encrypt() was adding text MIME headers twice because they
5484 were added manually and by SMIME_crlf_copy().
5487 *) In bntest.c don't call BN_rand with zero bits argument.
5488 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5490 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5491 case was implemented. This caused BN_div_recp() to fail occasionally.
5494 *) Add an optional second argument to the set_label() in the perl
5495 assembly language builder. If this argument exists and is set
5496 to 1 it signals that the assembler should use a symbol whose
5497 scope is the entire file, not just the current function. This
5498 is needed with MASM which uses the format label:: for this scope.
5499 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5501 *) Change the ASN1 types so they are typedefs by default. Before
5502 almost all types were #define'd to ASN1_STRING which was causing
5503 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5507 *) Change names of new functions to the new get1/get0 naming
5508 convention: After 'get1', the caller owns a reference count
5509 and has to call ..._free; 'get0' returns a pointer to some
5510 data structure without incrementing reference counters.
5511 (Some of the existing 'get' functions increment a reference
5512 counter, some don't.)
5513 Similarly, 'set1' and 'add1' functions increase reference
5514 counters or duplicate objects.
5517 *) Allow for the possibility of temp RSA key generation failure:
5518 the code used to assume it always worked and crashed on failure.
5521 *) Fix potential buffer overrun problem in BIO_printf().
5522 [Ulf Möller, using public domain code by Patrick Powell; problem
5523 pointed out by David Sacerdote <das33@cornell.edu>]
5525 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5526 RAND_egd() and RAND_status(). In the command line application,
5527 the EGD socket can be specified like a seed file using RANDFILE
5531 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5532 Some CAs (e.g. Verisign) distribute certificates in this form.
5535 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5536 list to exclude them. This means that no special compilation option
5537 is needed to use anonymous DH: it just needs to be included in the
5541 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5542 EVP_MD_type. The old functionality is available in a new macro called
5543 EVP_MD_md(). Change code that uses it and update docs.
5546 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5547 where the 'void *' argument is replaced by a function pointer argument.
5548 Previously 'void *' was abused to point to functions, which works on
5549 many platforms, but is not correct. As these functions are usually
5550 called by macros defined in OpenSSL header files, most source code
5551 should work without changes.
5554 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5555 sections with information on -D... compiler switches used for
5556 compiling the library so that applications can see them. To enable
5557 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5558 must be defined. E.g.,
5559 #define OPENSSL_ALGORITHM_DEFINES
5560 #include <openssl/opensslconf.h>
5561 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5562 [Richard Levitte, Ulf and Bodo Möller]
5564 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5568 *) Change the 'other' type in certificate aux info to a STACK_OF
5569 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5570 the required ASN1 format: arbitrary types determined by an OID.
5573 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5574 argument to 'req'. This is not because the function is newer or
5575 better than others it just uses the work 'NEW' in the certificate
5576 request header lines. Some software needs this.
5579 *) Reorganise password command line arguments: now passwords can be
5580 obtained from various sources. Delete the PEM_cb function and make
5581 it the default behaviour: i.e. if the callback is NULL and the
5582 usrdata argument is not NULL interpret it as a null terminated pass
5583 phrase. If usrdata and the callback are NULL then the pass phrase
5584 is prompted for as usual.
5587 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5588 the support is automatically enabled. The resulting binaries will
5589 autodetect the card and use it if present.
5590 [Ben Laurie and Compaq Inc.]
5592 *) Work around for Netscape hang bug. This sends certificate request
5593 and server done in one record. Since this is perfectly legal in the
5594 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5595 the bugs/SSLv3 entry for more info.
5598 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5601 *) Add -rand argument to smime and pkcs12 applications and read/write
5605 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5608 *) Add command line password options to the remaining applications.
5611 *) Bug fix for BN_div_recp() for numerators with an even number of
5615 *) More tests in bntest.c, and changed test_bn output.
5618 *) ./config recognizes MacOS X now.
5621 *) Bug fix for BN_div() when the first words of num and divsor are
5622 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5625 *) Add support for various broken PKCS#8 formats, and command line
5626 options to produce them.
5629 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5630 get temporary BIGNUMs from a BN_CTX.
5633 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5637 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5638 include a #define from the old name to the new. The original intent
5639 was that statically linked binaries could for example just call
5640 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5641 link with digests. This never worked becayse SSLeay_add_all_digests()
5642 and SSLeay_add_all_ciphers() were in the same source file so calling
5643 one would link with the other. They are now in separate source files.
5646 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5649 *) Use a less unusual form of the Miller-Rabin primality test (it used
5650 a binary algorithm for exponentiation integrated into the Miller-Rabin
5651 loop, our standard modexp algorithms are faster).
5654 *) Support for the EBCDIC character set completed.
5655 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5657 *) Source code cleanups: use const where appropriate, eliminate casts,
5658 use void * instead of char * in lhash.
5661 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5662 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5663 this the server could overwrite ephemeral keys that the client
5667 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5668 using 50 iterations of the Rabin-Miller test.
5670 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5671 iterations of the Rabin-Miller test as required by the appendix
5672 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5673 As BN_is_prime_fasttest includes trial division, DSA parameter
5674 generation becomes much faster.
5676 This implies a change for the callback functions in DSA_is_prime
5677 and DSA_generate_parameters: The callback function is called once
5678 for each positive witness in the Rabin-Miller test, not just
5679 occasionally in the inner loop; and the parameters to the
5680 callback function now provide an iteration count for the outer
5681 loop rather than for the current invocation of the inner loop.
5682 DSA_generate_parameters additionally can call the callback
5683 function with an 'iteration count' of -1, meaning that a
5684 candidate has passed the trial division test (when q is generated
5685 from an application-provided seed, trial division is skipped).
5688 *) New function BN_is_prime_fasttest that optionally does trial
5689 division before starting the Rabin-Miller test and has
5690 an additional BN_CTX * argument (whereas BN_is_prime always
5691 has to allocate at least one BN_CTX).
5692 'callback(1, -1, cb_arg)' is called when a number has passed the
5693 trial division stage.
5696 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5700 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5703 *) New function BN_pseudo_rand().
5706 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5707 bignum version of BN_from_montgomery() with the working code from
5708 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5712 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5713 made it impossible to use the same SSL_SESSION data structure in
5714 SSL2 clients in multiple threads.
5717 *) The return value of RAND_load_file() no longer counts bytes obtained
5718 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5719 to seed the PRNG (previously an explicit byte count was required).
5720 [Ulf Möller, Bodo Möller]
5722 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5723 used (char *) instead of (void *) and had casts all over the place.
5726 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5729 *) Retain source code compatibility for BN_prime_checks macro:
5730 BN_is_prime(..., BN_prime_checks, ...) now uses
5731 BN_prime_checks_for_size to determine the appropriate number of
5732 Rabin-Miller iterations.
5735 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5736 DH_CHECK_P_NOT_SAFE_PRIME.
5737 (Check if this is true? OpenPGP calls them "strong".)
5740 *) Merge the functionality of "dh" and "gendh" programs into a new program
5741 "dhparam". The old programs are retained for now but will handle DH keys
5742 (instead of parameters) in future.
5745 *) Make the ciphers, s_server and s_client programs check the return values
5746 when a new cipher list is set.
5749 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5750 ciphers. Before when the 56bit ciphers were enabled the sorting was
5753 The syntax for the cipher sorting has been extended to support sorting by
5754 cipher-strength (using the strength_bits hard coded in the tables).
5755 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5757 Fix a bug in the cipher-command parser: when supplying a cipher command
5758 string with an "undefined" symbol (neither command nor alphanumeric
5759 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5760 an error is flagged.
5762 Due to the strength-sorting extension, the code of the
5763 ssl_create_cipher_list() function was completely rearranged. I hope that
5764 the readability was also increased :-)
5765 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5767 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5768 for the first serial number and places 2 in the serial number file. This
5769 avoids problems when the root CA is created with serial number zero and
5770 the first user certificate has the same issuer name and serial number
5774 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5775 the new code. Add documentation for this stuff.
5778 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5779 X509_*() to X509at_*() on the grounds that they don't handle X509
5780 structures and behave in an analagous way to the X509v3 functions:
5781 they shouldn't be called directly but wrapper functions should be used
5784 So we also now have some wrapper functions that call the X509at functions
5785 when passed certificate requests. (TO DO: similar things can be done with
5786 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5787 things. Some of these need some d2i or i2d and print functionality
5788 because they handle more complex structures.)
5791 *) Add missing #ifndefs that caused missing symbols when building libssl
5792 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5793 NO_RSA in ssl/s2*.c.
5794 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5796 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5797 has a return value which indicates the quality of the random data
5798 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5799 error queue. New function RAND_pseudo_bytes() generates output that is
5800 guaranteed to be unique but not unpredictable. RAND_add is like
5801 RAND_seed, but takes an extra argument for an entropy estimate
5802 (RAND_seed always assumes full entropy).
5805 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5806 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5807 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5808 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5809 false-positive rate of at most 2^-80 for random input.
5812 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5815 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5816 in the 0.9.5 release), this returns the chain
5817 from an X509_CTX structure with a dup of the stack and all
5818 the X509 reference counts upped: so the stack will exist
5819 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5822 Also make SSL_SESSION_print() print out the verify return
5826 *) Add manpage for the pkcs12 command. Also change the default
5827 behaviour so MAC iteration counts are used unless the new
5828 -nomaciter option is used. This improves file security and
5829 only older versions of MSIE (4.0 for example) need it.
5832 *) Honor the no-xxx Configure options when creating .DEF files.
5835 *) Add PKCS#10 attributes to field table: challengePassword,
5836 unstructuredName and unstructuredAddress. These are taken from
5837 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5838 international characters are used.
5840 More changes to X509_ATTRIBUTE code: allow the setting of types
5841 based on strings. Remove the 'loc' parameter when adding
5842 attributes because these will be a SET OF encoding which is sorted
5846 *) Initial changes to the 'req' utility to allow request generation
5847 automation. This will allow an application to just generate a template
5848 file containing all the field values and have req construct the
5851 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5852 used all over the place including certificate requests and PKCS#7
5853 structures. They are currently handled manually where necessary with
5854 some primitive wrappers for PKCS#7. The new functions behave in a
5855 manner analogous to the X509 extension functions: they allow
5856 attributes to be looked up by NID and added.
5858 Later something similar to the X509V3 code would be desirable to
5859 automatically handle the encoding, decoding and printing of the
5860 more complex types. The string types like challengePassword can
5861 be handled by the string table functions.
5863 Also modified the multi byte string table handling. Now there is
5864 a 'global mask' which masks out certain types. The table itself
5865 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5866 is useful when for example there is only one permissible type
5867 (as in countryName) and using the mask might result in no valid
5871 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5872 SSL_get_peer_finished to allow applications to obtain the latest
5873 Finished messages sent to the peer or expected from the peer,
5874 respectively. (SSL_get_peer_finished is usually the Finished message
5875 actually received from the peer, otherwise the protocol will be aborted.)
5877 As the Finished message are message digests of the complete handshake
5878 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5879 be used for external authentication procedures when the authentication
5880 provided by SSL/TLS is not desired or is not enough.
5883 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5884 the host supports BWX extension and if Compaq C is present on the
5885 $PATH. Just exploiting of the BWX extension results in 20-30%
5886 performance kick for some algorithms, e.g. DES and RC4 to mention
5887 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5891 *) Add support for MS "fast SGC". This is arguably a violation of the
5892 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5893 weak crypto and after checking the certificate is SGC a second one
5894 with strong crypto. MS SGC stops the first handshake after receiving
5895 the server certificate message and sends a second client hello. Since
5896 a server will typically do all the time consuming operations before
5897 expecting any further messages from the client (server key exchange
5898 is the most expensive) there is little difference between the two.
5900 To get OpenSSL to support MS SGC we have to permit a second client
5901 hello message after we have sent server done. In addition we have to
5902 reset the MAC if we do get this second client hello.
5905 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5906 if a DER encoded private key is RSA or DSA traditional format. Changed
5907 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5908 format DER encoded private key. Newer code should use PKCS#8 format which
5909 has the key type encoded in the ASN1 structure. Added DER private key
5910 support to pkcs8 application.
5913 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5914 ciphersuites has been selected (as required by the SSL 3/TLS 1
5915 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5916 is set, we interpret this as a request to violate the specification
5917 (the worst that can happen is a handshake failure, and 'correct'
5918 behaviour would result in a handshake failure anyway).
5921 *) In SSL_CTX_add_session, take into account that there might be multiple
5922 SSL_SESSION structures with the same session ID (e.g. when two threads
5923 concurrently obtain them from an external cache).
5924 The internal cache can handle only one SSL_SESSION with a given ID,
5925 so if there's a conflict, we now throw out the old one to achieve
5929 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5930 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5931 some routines that use cipher OIDs: some ciphers do not have OIDs
5932 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5936 *) Simplify the trust setting structure and code. Now we just have
5937 two sequences of OIDs for trusted and rejected settings. These will
5938 typically have values the same as the extended key usage extension
5939 and any application specific purposes.
5941 The trust checking code now has a default behaviour: it will just
5942 check for an object with the same NID as the passed id. Functions can
5943 be provided to override either the default behaviour or the behaviour
5944 for a given id. SSL client, server and email already have functions
5945 in place for compatibility: they check the NID and also return "trusted"
5946 if the certificate is self signed.
5949 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5950 traditional format into an EVP_PKEY structure.
5953 *) Add a password callback function PEM_cb() which either prompts for
5954 a password if usr_data is NULL or otherwise assumes it is a null
5955 terminated password. Allow passwords to be passed on command line
5956 environment or config files in a few more utilities.
5959 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5960 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5961 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5962 Update documentation.
5965 *) Support for ASN1 "NULL" type. This could be handled before by using
5966 ASN1_TYPE but there wasn't any function that would try to read a NULL
5967 and produce an error if it couldn't. For compatibility we also have
5968 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5969 don't allocate anything because they don't need to.
5972 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5974 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5976 *) Rebuild of the memory allocation routines used by OpenSSL code and
5977 possibly others as well. The purpose is to make an interface that
5978 provide hooks so anyone can build a separate set of allocation and
5979 deallocation routines to be used by OpenSSL, for example memory
5980 pool implementations, or something else, which was previously hard
5981 since Malloc(), Realloc() and Free() were defined as macros having
5982 the values malloc, realloc and free, respectively (except for Win32
5983 compilations). The same is provided for memory debugging code.
5984 OpenSSL already comes with functionality to find memory leaks, but
5985 this gives people a chance to debug other memory problems.
5987 With these changes, a new set of functions and macros have appeared:
5989 CRYPTO_set_mem_debug_functions() [F]
5990 CRYPTO_get_mem_debug_functions() [F]
5991 CRYPTO_dbg_set_options() [F]
5992 CRYPTO_dbg_get_options() [F]
5993 CRYPTO_malloc_debug_init() [M]
5995 The memory debug functions are NULL by default, unless the library
5996 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5997 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5998 gives the standard debugging functions that come with OpenSSL) or
5999 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6000 provided by the library user) must be used. When the standard
6001 debugging functions are used, CRYPTO_dbg_set_options can be used to
6002 request additional information:
6003 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6004 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6006 Also, things like CRYPTO_set_mem_functions will always give the
6007 expected result (the new set of functions is used for allocation
6008 and deallocation) at all times, regardless of platform and compiler
6011 To finish it up, some functions that were never use in any other
6012 way than through macros have a new API and new semantic:
6015 CRYPTO_dbg_realloc()
6018 All macros of value have retained their old syntax.
6019 [Richard Levitte and Bodo Moeller]
6021 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6022 ordering of SMIMECapabilities wasn't in "strength order" and there
6023 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6027 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6028 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6029 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6031 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6032 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6033 functionality to handle multipart/signed properly) and a utility
6034 called 'smime' to call all this stuff. This is based on code I
6035 originally wrote for Celo who have kindly allowed it to be
6036 included in OpenSSL.
6039 *) Add variants des_set_key_checked and des_set_key_unchecked of
6040 des_set_key (aka des_key_sched). Global variable des_check_key
6041 decides which of these is called by des_set_key; this way
6042 des_check_key behaves as it always did, but applications and
6043 the library itself, which was buggy for des_check_key == 1,
6044 have a cleaner way to pick the version they need.
6047 *) New function PKCS12_newpass() which changes the password of a
6051 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6052 dynamic mix. In both cases the ids can be used as an index into the
6053 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6054 functions so they accept a list of the field values and the
6055 application doesn't need to directly manipulate the X509_TRUST
6059 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6063 *) Modify the way the V3 extension code looks up extensions. This now
6064 works in a similar way to the object code: we have some "standard"
6065 extensions in a static table which is searched with OBJ_bsearch()
6066 and the application can add dynamic ones if needed. The file
6067 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6068 updated whenever a new extension is added to the core code and kept
6069 in ext_nid order. There is a simple program 'tabtest.c' which checks
6070 this. New extensions are not added too often so this file can readily
6071 be maintained manually.
6073 There are two big advantages in doing things this way. The extensions
6074 can be looked up immediately and no longer need to be "added" using
6075 X509V3_add_standard_extensions(): this function now does nothing.
6076 [Side note: I get *lots* of email saying the extension code doesn't
6077 work because people forget to call this function]
6078 Also no dynamic allocation is done unless new extensions are added:
6079 so if we don't add custom extensions there is no need to call
6080 X509V3_EXT_cleanup().
6083 *) Modify enc utility's salting as follows: make salting the default. Add a
6084 magic header, so unsalted files fail gracefully instead of just decrypting
6085 to garbage. This is because not salting is a big security hole, so people
6086 should be discouraged from doing it.
6089 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6090 digest to be passed on the command line but it only used this
6091 parameter when signing a certificate. Modified so all relevant
6092 operations are affected by the digest parameter including the
6093 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6094 DSA key was used because it didn't fix the digest.
6097 *) Initial certificate chain verify code. Currently tests the untrusted
6098 certificates for consistency with the verify purpose (which is set
6099 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6101 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6102 this is because it will reject chains with invalid extensions whereas
6103 every previous version of OpenSSL and SSLeay made no checks at all.
6105 Trust code: checks the root CA for the relevant trust settings. Trust
6106 settings have an initial value consistent with the verify purpose: e.g.
6107 if the verify purpose is for SSL client use it expects the CA to be
6108 trusted for SSL client use. However the default value can be changed to
6109 permit custom trust settings: one example of this would be to only trust
6110 certificates from a specific "secure" set of CAs.
6112 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6113 which should be used for version portability: especially since the
6114 verify structure is likely to change more often now.
6116 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6117 to set them. If not set then assume SSL clients will verify SSL servers
6120 Two new options to the verify program: -untrusted allows a set of
6121 untrusted certificates to be passed in and -purpose which sets the
6122 intended purpose of the certificate. If a purpose is set then the
6123 new chain verify code is used to check extension consistency.
6126 *) Support for the authority information access extension.
6129 *) Modify RSA and DSA PEM read routines to transparently handle
6130 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6131 public keys in a format compatible with certificate
6132 SubjectPublicKeyInfo structures. Unfortunately there were already
6133 functions called *_PublicKey_* which used various odd formats so
6134 these are retained for compatibility: however the DSA variants were
6135 never in a public release so they have been deleted. Changed dsa/rsa
6136 utilities to handle the new format: note no releases ever handled public
6137 keys so we should be OK.
6139 The primary motivation for this change is to avoid the same fiasco
6140 that dogs private keys: there are several incompatible private key
6141 formats some of which are standard and some OpenSSL specific and
6142 require various evil hacks to allow partial transparent handling and
6143 even then it doesn't work with DER formats. Given the option anything
6144 other than PKCS#8 should be dumped: but the other formats have to
6145 stay in the name of compatibility.
6147 With public keys and the benefit of hindsight one standard format
6148 is used which works with EVP_PKEY, RSA or DSA structures: though
6149 it clearly returns an error if you try to read the wrong kind of key.
6151 Added a -pubkey option to the 'x509' utility to output the public key.
6152 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6153 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6154 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6155 that do the same as the EVP_PKEY_assign_*() except they up the
6156 reference count of the added key (they don't "swallow" the
6160 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6161 CRLs would fail if the file contained no certificates or no CRLs:
6162 added a new function to read in both types and return the number
6163 read: this means that if none are read it will be an error. The
6164 DER versions of the certificate and CRL reader would always fail
6165 because it isn't possible to mix certificates and CRLs in DER format
6166 without choking one or the other routine. Changed this to just read
6167 a certificate: this is the best we can do. Also modified the code
6168 in apps/verify.c to take notice of return codes: it was previously
6169 attempting to read in certificates from NULL pointers and ignoring
6170 any errors: this is one reason why the cert and CRL reader seemed
6171 to work. It doesn't check return codes from the default certificate
6172 routines: these may well fail if the certificates aren't installed.
6175 *) Code to support otherName option in GeneralName.
6178 *) First update to verify code. Change the verify utility
6179 so it warns if it is passed a self signed certificate:
6180 for consistency with the normal behaviour. X509_verify
6181 has been modified to it will now verify a self signed
6182 certificate if *exactly* the same certificate appears
6183 in the store: it was previously impossible to trust a
6184 single self signed certificate. This means that:
6185 openssl verify ss.pem
6186 now gives a warning about a self signed certificate but
6187 openssl verify -CAfile ss.pem ss.pem
6191 *) For servers, store verify_result in SSL_SESSION data structure
6192 (and add it to external session representation).
6193 This is needed when client certificate verifications fails,
6194 but an application-provided verification callback (set by
6195 SSL_CTX_set_cert_verify_callback) allows accepting the session
6196 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6197 but returns 1): When the session is reused, we have to set
6198 ssl->verify_result to the appropriate error code to avoid
6200 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6202 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6203 case in PKCS7_dataInit() where the signed PKCS7 structure
6204 didn't contain any existing data because it was being created.
6205 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6207 *) Add a salt to the key derivation routines in enc.c. This
6208 forms the first 8 bytes of the encrypted file. Also add a
6209 -S option to allow a salt to be input on the command line.
6212 *) New function X509_cmp(). Oddly enough there wasn't a function
6213 to compare two certificates. We do this by working out the SHA1
6214 hash and comparing that. X509_cmp() will be needed by the trust
6218 *) SSL_get1_session() is like SSL_get_session(), but increments
6219 the reference count in the SSL_SESSION returned.
6220 [Geoff Thorpe <geoff@eu.c2.net>]
6222 *) Fix for 'req': it was adding a null to request attributes.
6223 Also change the X509_LOOKUP and X509_INFO code to handle
6224 certificate auxiliary information.
6227 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6231 *) Add the possibility to add extra information to the memory leak
6232 detecting output, to form tracebacks, showing from where each
6233 allocation was originated: CRYPTO_push_info("constant string") adds
6234 the string plus current file name and line number to a per-thread
6235 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6236 is like calling CYRPTO_pop_info() until the stack is empty.
6237 Also updated memory leak detection code to be multi-thread-safe.
6240 *) Add options -text and -noout to pkcs7 utility and delete the
6241 encryption options which never did anything. Update docs.
6244 *) Add options to some of the utilities to allow the pass phrase
6245 to be included on either the command line (not recommended on
6246 OSes like Unix) or read from the environment. Update the
6247 manpages and fix a few bugs.
6250 *) Add a few manpages for some of the openssl commands.
6253 *) Fix the -revoke option in ca. It was freeing up memory twice,
6254 leaking and not finding already revoked certificates.
6257 *) Extensive changes to support certificate auxiliary information.
6258 This involves the use of X509_CERT_AUX structure and X509_AUX
6259 functions. An X509_AUX function such as PEM_read_X509_AUX()
6260 can still read in a certificate file in the usual way but it
6261 will also read in any additional "auxiliary information". By
6262 doing things this way a fair degree of compatibility can be
6263 retained: existing certificates can have this information added
6264 using the new 'x509' options.
6266 Current auxiliary information includes an "alias" and some trust
6267 settings. The trust settings will ultimately be used in enhanced
6268 certificate chain verification routines: currently a certificate
6269 can only be trusted if it is self signed and then it is trusted
6273 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6274 The problem was that one of the replacement routines had not been working
6275 since SSLeay releases. For now the offending routine has been replaced
6276 with non-optimised assembler. Even so, this now gives around 95%
6277 performance improvement for 1024 bit RSA signs.
6280 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6281 handling. Most clients have the effective key size in bits equal to
6282 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6283 A few however don't do this and instead use the size of the decrypted key
6284 to determine the RC2 key length and the AlgorithmIdentifier to determine
6285 the effective key length. In this case the effective key length can still
6286 be 40 bits but the key length can be 168 bits for example. This is fixed
6287 by manually forcing an RC2 key into the EVP_PKEY structure because the
6288 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6289 the key length and effective key length are equal.
6292 *) Add a bunch of functions that should simplify the creation of
6293 X509_NAME structures. Now you should be able to do:
6294 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6295 and have it automatically work out the correct field type and fill in
6296 the structures. The more adventurous can try:
6297 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6298 and it will (hopefully) work out the correct multibyte encoding.
6301 *) Change the 'req' utility to use the new field handling and multibyte
6302 copy routines. Before the DN field creation was handled in an ad hoc
6303 way in req, ca, and x509 which was rather broken and didn't support
6304 BMPStrings or UTF8Strings. Since some software doesn't implement
6305 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6306 using the dirstring_type option. See the new comment in the default
6307 openssl.cnf for more info.
6310 *) Make crypto/rand/md_rand.c more robust:
6311 - Assure unique random numbers after fork().
6312 - Make sure that concurrent threads access the global counter and
6313 md serializably so that we never lose entropy in them
6314 or use exactly the same state in multiple threads.
6315 Access to the large state is not always serializable because
6316 the additional locking could be a performance killer, and
6317 md should be large enough anyway.
6320 *) New file apps/app_rand.c with commonly needed functionality
6321 for handling the random seed file.
6323 Use the random seed file in some applications that previously did not:
6325 dsaparam -genkey (which also ignored its '-rand' option),
6328 x509 (when signing).
6329 Except on systems with /dev/urandom, it is crucial to have a random
6330 seed file at least for key creation, DSA signing, and for DH exchanges;
6331 for RSA signatures we could do without one.
6333 gendh and gendsa (unlike genrsa) used to read only the first byte
6334 of each file listed in the '-rand' option. The function as previously
6335 found in genrsa is now in app_rand.c and is used by all programs
6336 that support '-rand'.
6339 *) In RAND_write_file, use mode 0600 for creating files;
6340 don't just chmod when it may be too late.
6343 *) Report an error from X509_STORE_load_locations
6344 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6347 *) New function ASN1_mbstring_copy() this copies a string in either
6348 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6349 into an ASN1_STRING type. A mask of permissible types is passed
6350 and it chooses the "minimal" type to use or an error if not type
6354 *) Add function equivalents to the various macros in asn1.h. The old
6355 macros are retained with an M_ prefix. Code inside the library can
6356 use the M_ macros. External code (including the openssl utility)
6357 should *NOT* in order to be "shared library friendly".
6360 *) Add various functions that can check a certificate's extensions
6361 to see if it usable for various purposes such as SSL client,
6362 server or S/MIME and CAs of these types. This is currently
6363 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6364 verification. Also added a -purpose flag to x509 utility to
6365 print out all the purposes.
6368 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6372 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6373 for, obtain and decode and extension and obtain its critical flag.
6374 This allows all the necessary extension code to be handled in a
6375 single function call.
6378 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6379 platforms. See crypto/rc4/rc4_enc.c for further details.
6382 *) New -noout option to asn1parse. This causes no output to be produced
6383 its main use is when combined with -strparse and -out to extract data
6384 from a file (which may not be in ASN.1 format).
6387 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6388 when producing the local key id.
6389 [Richard Levitte <levitte@stacken.kth.se>]
6391 *) New option -dhparam in s_server. This allows a DH parameter file to be
6392 stated explicitly. If it is not stated then it tries the first server
6393 certificate file. The previous behaviour hard coded the filename
6397 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6398 a public key to be input or output. For example:
6399 openssl rsa -in key.pem -pubout -out pubkey.pem
6400 Also added necessary DSA public key functions to handle this.
6403 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6404 in the message. This was handled by allowing
6405 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6406 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6408 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6409 to the end of the strings whereas this didn't. This would cause problems
6410 if strings read with d2i_ASN1_bytes() were later modified.
6411 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6413 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6414 data and it contains EOF it will end up returning an error. This is
6415 caused by input 46 bytes long. The cause is due to the way base64
6416 BIOs find the start of base64 encoded data. They do this by trying a
6417 trial decode on each line until they find one that works. When they
6418 do a flag is set and it starts again knowing it can pass all the
6419 data directly through the decoder. Unfortunately it doesn't reset
6420 the context it uses. This means that if EOF is reached an attempt
6421 is made to pass two EOFs through the context and this causes the
6422 resulting error. This can also cause other problems as well. As is
6423 usual with these problems it takes *ages* to find and the fix is
6424 trivial: move one line.
6425 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6427 *) Ugly workaround to get s_client and s_server working under Windows. The
6428 old code wouldn't work because it needed to select() on sockets and the
6429 tty (for keypresses and to see if data could be written). Win32 only
6430 supports select() on sockets so we select() with a 1s timeout on the
6431 sockets and then see if any characters are waiting to be read, if none
6432 are present then we retry, we also assume we can always write data to
6433 the tty. This isn't nice because the code then blocks until we've
6434 received a complete line of data and it is effectively polling the
6435 keyboard at 1s intervals: however it's quite a bit better than not
6436 working at all :-) A dedicated Windows application might handle this
6437 with an event loop for example.
6440 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6441 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6442 will be called when RSA_sign() and RSA_verify() are used. This is useful
6443 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6444 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6445 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6446 This necessitated the support of an extra signature type NID_md5_sha1
6447 for SSL signatures and modifications to the SSL library to use it instead
6448 of calling RSA_public_decrypt() and RSA_private_encrypt().
6451 *) Add new -verify -CAfile and -CApath options to the crl program, these
6452 will lookup a CRL issuers certificate and verify the signature in a
6453 similar way to the verify program. Tidy up the crl program so it
6454 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6455 less strict. It will now permit CRL extensions even if it is not
6456 a V2 CRL: this will allow it to tolerate some broken CRLs.
6459 *) Initialize all non-automatic variables each time one of the openssl
6460 sub-programs is started (this is necessary as they may be started
6461 multiple times from the "OpenSSL>" prompt).
6462 [Lennart Bang, Bodo Moeller]
6464 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6465 removing all other RSA functionality (this is what NO_RSA does). This
6466 is so (for example) those in the US can disable those operations covered
6467 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6471 *) Non-copying interface to BIO pairs.
6472 (still largely untested)
6475 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6476 ASCII string. This was handled independently in various places before.
6479 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6480 UTF8 strings a character at a time.
6483 *) Use client_version from client hello to select the protocol
6484 (s23_srvr.c) and for RSA client key exchange verification
6485 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6488 *) Add various utility functions to handle SPKACs, these were previously
6489 handled by poking round in the structure internals. Added new function
6490 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6491 print, verify and generate SPKACs. Based on an original idea from
6492 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6495 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6498 *) Allow the config file extension section to be overwritten on the
6499 command line. Based on an original idea from Massimiliano Pala
6500 <madwolf@comune.modena.it>. The new option is called -extensions
6501 and can be applied to ca, req and x509. Also -reqexts to override
6502 the request extensions in req and -crlexts to override the crl extensions
6506 *) Add new feature to the SPKAC handling in ca. Now you can include
6507 the same field multiple times by preceding it by "XXXX." for example:
6510 this is the same syntax as used in the req config file.
6513 *) Allow certificate extensions to be added to certificate requests. These
6514 are specified in a 'req_extensions' option of the req section of the
6515 config file. They can be printed out with the -text option to req but
6516 are otherwise ignored at present.
6519 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6520 data read consists of only the final block it would not decrypted because
6521 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6522 A misplaced 'break' also meant the decrypted final block might not be
6523 copied until the next read.
6526 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6527 a few extra parameters to the DH structure: these will be useful if
6528 for example we want the value of 'q' or implement X9.42 DH.
6531 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6532 provides hooks that allow the default DSA functions or functions on a
6533 "per key" basis to be replaced. This allows hardware acceleration and
6534 hardware key storage to be handled without major modification to the
6535 library. Also added low level modexp hooks and CRYPTO_EX structure and
6536 associated functions.
6539 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6540 as "read only": it can't be written to and the buffer it points to will
6541 not be freed. Reading from a read only BIO is much more efficient than
6542 a normal memory BIO. This was added because there are several times when
6543 an area of memory needs to be read from a BIO. The previous method was
6544 to create a memory BIO and write the data to it, this results in two
6545 copies of the data and an O(n^2) reading algorithm. There is a new
6546 function BIO_new_mem_buf() which creates a read only memory BIO from
6547 an area of memory. Also modified the PKCS#7 routines to use read only
6551 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6552 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6553 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6554 but a retry condition occured while trying to read the rest.
6557 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6558 NID_pkcs7_encrypted by default: this was wrong since this should almost
6559 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6560 the encrypted data type: this is a more sensible place to put it and it
6561 allows the PKCS#12 code to be tidied up that duplicated this
6565 *) Changed obj_dat.pl script so it takes its input and output files on
6566 the command line. This should avoid shell escape redirection problems
6570 *) Initial support for certificate extension requests, these are included
6571 in things like Xenroll certificate requests. Included functions to allow
6572 extensions to be obtained and added.
6575 *) -crlf option to s_client and s_server for sending newlines as
6576 CRLF (as required by many protocols).
6579 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6581 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6582 [Ralf S. Engelschall]
6584 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6585 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6587 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6591 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6592 DH parameters/keys (q is lost during that conversion, but the resulting
6593 DH parameters contain its length).
6595 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6596 much faster than DH_generate_parameters (which creates parameters
6597 where p = 2*q + 1), and also the smaller q makes DH computations
6598 much more efficient (160-bit exponentiation instead of 1024-bit
6599 exponentiation); so this provides a convenient way to support DHE
6600 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6601 utter importance to use
6602 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6604 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6605 when such DH parameters are used, because otherwise small subgroup
6606 attacks may become possible!
6609 *) Avoid memory leak in i2d_DHparams.
6612 *) Allow the -k option to be used more than once in the enc program:
6613 this allows the same encrypted message to be read by multiple recipients.
6616 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6617 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6618 it will always use the numerical form of the OID, even if it has a short
6622 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6623 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6624 otherwise bn_mod_exp was called. In the case of hardware keys for example
6625 no private key components need be present and it might store extra data
6626 in the RSA structure, which cannot be accessed from bn_mod_exp.
6627 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6628 private key operations.
6631 *) Added support for SPARC Linux.
6634 *) pem_password_cb function type incompatibly changed from
6635 typedef int pem_password_cb(char *buf, int size, int rwflag);
6637 ....(char *buf, int size, int rwflag, void *userdata);
6638 so that applications can pass data to their callbacks:
6639 The PEM[_ASN1]_{read,write}... functions and macros now take an
6640 additional void * argument, which is just handed through whenever
6641 the password callback is called.
6642 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6644 New function SSL_CTX_set_default_passwd_cb_userdata.
6646 Compatibility note: As many C implementations push function arguments
6647 onto the stack in reverse order, the new library version is likely to
6648 interoperate with programs that have been compiled with the old
6649 pem_password_cb definition (PEM_whatever takes some data that
6650 happens to be on the stack as its last argument, and the callback
6651 just ignores this garbage); but there is no guarantee whatsoever that
6654 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6655 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6656 problems not only on Windows, but also on some Unix platforms.
6657 To avoid problematic command lines, these definitions are now in an
6658 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6659 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6662 *) MIPS III/IV assembler module is reimplemented.
6665 *) More DES library cleanups: remove references to srand/rand and
6666 delete an unused file.
6669 *) Add support for the the free Netwide assembler (NASM) under Win32,
6670 since not many people have MASM (ml) and it can be hard to obtain.
6671 This is currently experimental but it seems to work OK and pass all
6672 the tests. Check out INSTALL.W32 for info.
6675 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6676 without temporary keys kept an extra copy of the server key,
6677 and connections with temporary keys did not free everything in case
6681 *) New function RSA_check_key and new openssl rsa option -check
6682 for verifying the consistency of RSA keys.
6683 [Ulf Moeller, Bodo Moeller]
6685 *) Various changes to make Win32 compile work:
6686 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6687 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6688 comparison" warnings.
6689 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6692 *) Add a debugging option to PKCS#5 v2 key generation function: when
6693 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6694 derived keys are printed to stderr.
6697 *) Copy the flags in ASN1_STRING_dup().
6698 [Roman E. Pavlov <pre@mo.msk.ru>]
6700 *) The x509 application mishandled signing requests containing DSA
6701 keys when the signing key was also DSA and the parameters didn't match.
6703 It was supposed to omit the parameters when they matched the signing key:
6704 the verifying software was then supposed to automatically use the CA's
6705 parameters if they were absent from the end user certificate.
6707 Omitting parameters is no longer recommended. The test was also
6708 the wrong way round! This was probably due to unusual behaviour in
6709 EVP_cmp_parameters() which returns 1 if the parameters match.
6710 This meant that parameters were omitted when they *didn't* match and
6711 the certificate was useless. Certificates signed with 'ca' didn't have
6713 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6715 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6716 The interface is as follows:
6717 Applications can use
6718 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6719 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6720 "off" is now the default.
6721 The library internally uses
6722 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6723 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6724 to disable memory-checking temporarily.
6726 Some inconsistent states that previously were possible (and were
6727 even the default) are now avoided.
6729 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6730 with each memory chunk allocated; this is occasionally more helpful
6731 than just having a counter.
6733 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6735 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6739 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6740 which largely parallels "options", but is for changing API behaviour,
6741 whereas "options" are about protocol behaviour.
6742 Initial "mode" flags are:
6744 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6745 a single record has been written.
6746 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6747 retries use the same buffer location.
6748 (But all of the contents must be
6752 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6755 *) Fix problems with no-hmac etc.
6756 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6758 *) New functions RSA_get_default_method(), RSA_set_method() and
6759 RSA_get_method(). These allows replacement of RSA_METHODs without having
6760 to mess around with the internals of an RSA structure.
6763 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6764 Also really enable memory leak checks in openssl.c and in some
6766 [Chad C. Mulligan, Bodo Moeller]
6768 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6769 up the length of negative integers. This has now been simplified to just
6770 store the length when it is first determined and use it later, rather
6771 than trying to keep track of where data is copied and updating it to
6773 [Steve Henson, reported by Brien Wheeler
6774 <bwheeler@authentica-security.com>]
6776 *) Add a new function PKCS7_signatureVerify. This allows the verification
6777 of a PKCS#7 signature but with the signing certificate passed to the
6778 function itself. This contrasts with PKCS7_dataVerify which assumes the
6779 certificate is present in the PKCS#7 structure. This isn't always the
6780 case: certificates can be omitted from a PKCS#7 structure and be
6781 distributed by "out of band" means (such as a certificate database).
6784 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6785 function prototypes in pem.h, also change util/mkdef.pl to add the
6786 necessary function names.
6789 *) mk1mf.pl (used by Windows builds) did not properly read the
6790 options set by Configure in the top level Makefile, and Configure
6791 was not even able to write more than one option correctly.
6792 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6795 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6796 file to be loaded from a BIO or FILE pointer. The BIO version will
6797 for example allow memory BIOs to contain config info.
6800 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6801 Whoever hopes to achieve shared-library compatibility across versions
6802 must use this, not the compile-time macro.
6803 (Exercise 0.9.4: Which is the minimum library version required by
6805 Note: All this applies only to multi-threaded programs, others don't
6809 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6810 through a BIO pair triggered the default case, i.e.
6811 SSLerr(...,SSL_R_UNKNOWN_STATE).
6814 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6815 can use the SSL library even if none of the specific BIOs is
6819 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6820 for the encoded length.
6821 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6823 *) Add initial documentation of the X509V3 functions.
6826 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6827 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6828 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6829 secure PKCS#8 private key format with a high iteration count.
6832 *) Fix determination of Perl interpreter: A perl or perl5
6833 _directory_ in $PATH was also accepted as the interpreter.
6834 [Ralf S. Engelschall]
6836 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6837 wrong with it but it was very old and did things like calling
6838 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6842 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6843 to use the new extension code.
6846 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6847 with macros. This should make it easier to change their form, add extra
6848 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6852 *) Add to configuration table a new entry that can specify an alternative
6853 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6854 according to Mark Crispin <MRC@Panda.COM>.
6858 *) DES CBC did not update the IV. Weird.
6861 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6862 Changing the behaviour of the former might break existing programs --
6863 where IV updating is needed, des_ncbc_encrypt can be used.
6866 *) When bntest is run from "make test" it drives bc to check its
6867 calculations, as well as internally checking them. If an internal check
6868 fails, it needs to cause bc to give a non-zero result or make test carries
6869 on without noticing the failure. Fixed.
6872 *) DES library cleanups.
6875 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6876 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6877 ciphers. NOTE: although the key derivation function has been verified
6878 against some published test vectors it has not been extensively tested
6879 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6883 *) Instead of "mkdir -p", which is not fully portable, use new
6884 Perl script "util/mkdir-p.pl".
6887 *) Rewrite the way password based encryption (PBE) is handled. It used to
6888 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6889 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6890 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6891 the 'parameter' field of the AlgorithmIdentifier is passed to the
6892 underlying key generation function so it must do its own ASN1 parsing.
6893 This has also changed the EVP_PBE_CipherInit() function which now has a
6894 'parameter' argument instead of literal salt and iteration count values
6895 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6898 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6899 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6900 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6901 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6902 value was just used as a "magic string" and not used directly its
6903 value doesn't matter.
6906 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6910 *) "linux-sparc64" configuration (ultrapenguin).
6911 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6912 "linux-sparc" configuration.
6913 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6915 *) config now generates no-xxx options for missing ciphers.
6918 *) Support the EBCDIC character set (work in progress).
6919 File ebcdic.c not yet included because it has a different license.
6920 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6922 *) Support BS2000/OSD-POSIX.
6923 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6925 *) Make callbacks for key generation use void * instead of char *.
6928 *) Make S/MIME samples compile (not yet tested).
6931 *) Additional typesafe stacks.
6934 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6938 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6940 *) New configuration variant "sco5-gcc".
6942 *) Updated some demos.
6943 [Sean O Riordain, Wade Scholine]
6945 *) Add missing BIO_free at exit of pkcs12 application.
6948 *) Fix memory leak in conf.c.
6951 *) Updates for Win32 to assembler version of MD5.
6954 *) Set #! path to perl in apps/der_chop to where we found it
6955 instead of using a fixed path.
6958 *) SHA library changes for irix64-mips4-cc.
6961 *) Improvements for VMS support.
6965 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6967 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6968 This also avoids the problems with SC4.2 and unpatched SC5.
6969 [Andy Polyakov <appro@fy.chalmers.se>]
6971 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6972 These are required because of the typesafe stack would otherwise break
6973 existing code. If old code used a structure member which used to be STACK
6974 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6975 sk_num or sk_value it would produce an error because the num, data members
6976 are not present in STACK_OF. Now it just produces a warning. sk_set
6977 replaces the old method of assigning a value to sk_value
6978 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6979 that does this will no longer work (and should use sk_set instead) but
6980 this could be regarded as a "questionable" behaviour anyway.
6983 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6984 correctly handle encrypted S/MIME data.
6987 *) Change type of various DES function arguments from des_cblock
6988 (which means, in function argument declarations, pointer to char)
6989 to des_cblock * (meaning pointer to array with 8 char elements),
6990 which allows the compiler to do more typechecking; it was like
6991 that back in SSLeay, but with lots of ugly casts.
6993 Introduce new type const_des_cblock.
6996 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6997 problems: find RecipientInfo structure that matches recipient certificate
6998 and initialise the ASN1 structures properly based on passed cipher.
7001 *) Belatedly make the BN tests actually check the results.
7004 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7005 to and from BNs: it was completely broken. New compilation option
7006 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7007 key elements as negative integers.
7010 *) Reorganize and speed up MD5.
7011 [Andy Polyakov <appro@fy.chalmers.se>]
7014 [Richard Levitte <richard@levitte.org>]
7016 *) New option -out to asn1parse to allow the parsed structure to be
7017 output to a file. This is most useful when combined with the -strparse
7018 option to examine the output of things like OCTET STRINGS.
7021 *) Make SSL library a little more fool-proof by not requiring any longer
7022 that SSL_set_{accept,connect}_state be called before
7023 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7024 in many applications because usually everything *appeared* to work as
7025 intended anyway -- now it really works as intended).
7028 *) Move openssl.cnf out of lib/.
7031 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7032 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7033 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7034 [Ralf S. Engelschall]
7036 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7037 handle PKCS#7 enveloped data properly.
7038 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7040 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7041 copying pointers. The cert_st handling is changed by this in
7042 various ways (and thus what used to be known as ctx->default_cert
7043 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7044 any longer when s->cert does not give us what we need).
7045 ssl_cert_instantiate becomes obsolete by this change.
7046 As soon as we've got the new code right (possibly it already is?),
7047 we have solved a couple of bugs of the earlier code where s->cert
7048 was used as if it could not have been shared with other SSL structures.
7050 Note that using the SSL API in certain dirty ways now will result
7051 in different behaviour than observed with earlier library versions:
7052 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7053 does not influence s as it used to.
7055 In order to clean up things more thoroughly, inside SSL_SESSION
7056 we don't use CERT any longer, but a new structure SESS_CERT
7057 that holds per-session data (if available); currently, this is
7058 the peer's certificate chain and, for clients, the server's certificate
7059 and temporary key. CERT holds only those values that can have
7060 meaningful defaults in an SSL_CTX.
7063 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7064 from the internal representation. Various PKCS#7 fixes: remove some
7065 evil casts and set the enc_dig_alg field properly based on the signing
7069 *) Allow PKCS#12 password to be set from the command line or the
7070 environment. Let 'ca' get its config file name from the environment
7071 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7075 *) Allow certificate policies extension to use an IA5STRING for the
7076 organization field. This is contrary to the PKIX definition but
7077 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7081 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7082 without disallowing inline assembler and the like for non-pedantic builds.
7085 *) Support Borland C++ builder.
7086 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7091 *) SHA-1 cleanups and performance enhancements.
7092 [Andy Polyakov <appro@fy.chalmers.se>]
7094 *) Sparc v8plus assembler for the bignum library.
7095 [Andy Polyakov <appro@fy.chalmers.se>]
7097 *) Accept any -xxx and +xxx compiler options in Configure.
7100 *) Update HPUX configuration.
7103 *) Add missing sk_<type>_unshift() function to safestack.h
7104 [Ralf S. Engelschall]
7106 *) New function SSL_CTX_use_certificate_chain_file that sets the
7107 "extra_cert"s in addition to the certificate. (This makes sense
7108 only for "PEM" format files, as chains as a whole are not
7112 *) Support verify_depth from the SSL API.
7113 x509_vfy.c had what can be considered an off-by-one-error:
7114 Its depth (which was not part of the external interface)
7115 was actually counting the number of certificates in a chain;
7116 now it really counts the depth.
7119 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7120 instead of X509err, which often resulted in confusing error
7121 messages since the error codes are not globally unique
7122 (e.g. an alleged error in ssl3_accept when a certificate
7123 didn't match the private key).
7125 *) New function SSL_CTX_set_session_id_context that allows to set a default
7126 value (so that you don't need SSL_set_session_id_context for each
7127 connection using the SSL_CTX).
7130 *) OAEP decoding bug fix.
7133 *) Support INSTALL_PREFIX for package builders, as proposed by
7137 *) New Configure options "threads" and "no-threads". For systems
7138 where the proper compiler options are known (currently Solaris
7139 and Linux), "threads" is the default.
7142 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7145 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7146 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7147 such as /usr/local/bin.
7150 *) "make linux-shared" to build shared libraries.
7151 [Niels Poppe <niels@netbox.org>]
7153 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7156 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7157 extension adding in x509 utility.
7160 *) Remove NOPROTO sections and error code comments.
7163 *) Partial rewrite of the DEF file generator to now parse the ANSI
7167 *) New Configure options --prefix=DIR and --openssldir=DIR.
7170 *) Complete rewrite of the error code script(s). It is all now handled
7171 by one script at the top level which handles error code gathering,
7172 header rewriting and C source file generation. It should be much better
7173 than the old method: it now uses a modified version of Ulf's parser to
7174 read the ANSI prototypes in all header files (thus the old K&R definitions
7175 aren't needed for error creation any more) and do a better job of
7176 translating function codes into names. The old 'ASN1 error code imbedded
7177 in a comment' is no longer necessary and it doesn't use .err files which
7178 have now been deleted. Also the error code call doesn't have to appear all
7179 on one line (which resulted in some large lines...).
7182 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7185 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7186 0 (which usually indicates a closed connection), but continue reading.
7189 *) Fix some race conditions.
7192 *) Add support for CRL distribution points extension. Add Certificate
7193 Policies and CRL distribution points documentation.
7196 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7199 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7200 8 of keying material. Merlin has also confirmed interop with this fix
7201 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7202 [Merlin Hughes <merlin@baltimore.ie>]
7204 *) Fix lots of warnings.
7205 [Richard Levitte <levitte@stacken.kth.se>]
7207 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7208 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7209 [Richard Levitte <levitte@stacken.kth.se>]
7211 *) Fix problems with sizeof(long) == 8.
7212 [Andy Polyakov <appro@fy.chalmers.se>]
7214 *) Change functions to ANSI C.
7217 *) Fix typos in error codes.
7218 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7220 *) Remove defunct assembler files from Configure.
7223 *) SPARC v8 assembler BIGNUM implementation.
7224 [Andy Polyakov <appro@fy.chalmers.se>]
7226 *) Support for Certificate Policies extension: both print and set.
7227 Various additions to support the r2i method this uses.
7230 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7231 return a const string when you are expecting an allocated buffer.
7234 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7235 types DirectoryString and DisplayText.
7238 *) Add code to allow r2i extensions to access the configuration database,
7239 add an LHASH database driver and add several ctx helper functions.
7242 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7243 fail when they extended the size of a BIGNUM.
7246 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7247 support typesafe stack.
7250 *) Fix typo in SSL_[gs]et_options().
7251 [Nils Frostberg <nils@medcom.se>]
7253 *) Delete various functions and files that belonged to the (now obsolete)
7254 old X509V3 handling code.
7257 *) New Configure option "rsaref".
7260 *) Don't auto-generate pem.h.
7263 *) Introduce type-safe ASN.1 SETs.
7266 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7267 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7269 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7270 that links with OpenSSL (well at least cause lots of warnings), but fear
7271 not: the conversion is trivial, and it eliminates loads of evil casts. A
7272 few STACKed things have been converted already. Feel free to convert more.
7273 In the fullness of time, I'll do away with the STACK type altogether.
7276 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7277 specified in <certfile> by updating the entry in the index.txt file.
7278 This way one no longer has to edit the index.txt file manually for
7279 revoking a certificate. The -revoke option does the gory details now.
7280 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7282 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7283 `-text' option at all and this way the `-noout -text' combination was
7284 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7285 [Ralf S. Engelschall]
7287 *) Make sure a corresponding plain text error message exists for the
7288 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7289 verify callback function determined that a certificate was revoked.
7290 [Ralf S. Engelschall]
7292 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7293 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7294 all available cipers including rc5, which was forgotten until now.
7295 In order to let the testing shell script know which algorithms
7296 are available, a new (up to now undocumented) command
7297 "openssl list-cipher-commands" is used.
7300 *) Bugfix: s_client occasionally would sleep in select() when
7301 it should have checked SSL_pending() first.
7304 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7305 the raw DSA values prior to ASN.1 encoding.
7308 *) Tweaks to Configure
7309 [Niels Poppe <niels@netbox.org>]
7311 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7315 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7318 *) New config option to avoid instructions that are illegal on the 80386.
7319 The default code is faster, but requires at least a 486.
7322 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7323 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7324 same as SSL2_VERSION anyway.
7327 *) New "-showcerts" option for s_client.
7330 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7331 application. Various cleanups and fixes.
7334 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7335 modify error routines to work internally. Add error codes and PBE init
7336 to library startup routines.
7339 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7340 packing functions to asn1 and evp. Changed function names and error
7341 codes along the way.
7344 *) PKCS12 integration: and so it begins... First of several patches to
7345 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7346 objects to objects.h
7349 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7350 and display support for Thawte strong extranet extension.
7353 *) Add LinuxPPC support.
7354 [Jeff Dubrule <igor@pobox.org>]
7356 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7357 bn_div_words in alpha.s.
7358 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7360 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7361 OAEP isn't supported when OpenSSL is built with RSAref.
7362 [Ulf Moeller <ulf@fitug.de>]
7364 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7365 so they no longer are missing under -DNOPROTO.
7366 [Soren S. Jorvang <soren@t.dk>]
7369 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7371 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7372 doesn't work when the session is reused. Coming soon!
7375 *) Fix a security hole, that allows sessions to be reused in the wrong
7376 context thus bypassing client cert protection! All software that uses
7377 client certs and session caches in multiple contexts NEEDS PATCHING to
7378 allow session reuse! A fuller solution is in the works.
7379 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7381 *) Some more source tree cleanups (removed obsolete files
7382 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7383 permission on "config" script to be executable) and a fix for the INSTALL
7385 [Ulf Moeller <ulf@fitug.de>]
7387 *) Remove some legacy and erroneous uses of malloc, free instead of
7389 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7391 *) Make rsa_oaep_test return non-zero on error.
7392 [Ulf Moeller <ulf@fitug.de>]
7394 *) Add support for native Solaris shared libraries. Configure
7395 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7396 if someone would make that last step automatic.
7397 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7399 *) ctx_size was not built with the right compiler during "make links". Fixed.
7402 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7403 except NULL ciphers". This means the default cipher list will no longer
7404 enable NULL ciphers. They need to be specifically enabled e.g. with
7405 the string "DEFAULT:eNULL".
7408 *) Fix to RSA private encryption routines: if p < q then it would
7409 occasionally produce an invalid result. This will only happen with
7410 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7413 *) Be less restrictive and allow also `perl util/perlpath.pl
7414 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7415 because this way one can also use an interpreter named `perl5' (which is
7416 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7417 installed as `perl').
7418 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7420 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7421 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7423 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7424 advapi32.lib to Win32 build and change the pem test comparision
7425 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7426 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7427 and crypto/des/ede_cbcm_enc.c.
7430 *) DES quad checksum was broken on big-endian architectures. Fixed.
7433 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7434 Win32 test batch file so it (might) work again. The Win32 test batch file
7435 is horrible: I feel ill....
7438 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7439 in e_os.h. Audit of header files to check ANSI and non ANSI
7440 sections: 10 functions were absent from non ANSI section and not exported
7441 from Windows DLLs. Fixed up libeay.num for new functions.
7444 *) Make `openssl version' output lines consistent.
7445 [Ralf S. Engelschall]
7447 *) Fix Win32 symbol export lists for BIO functions: Added
7448 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7449 to ms/libeay{16,32}.def.
7450 [Ralf S. Engelschall]
7452 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7453 fine under Unix and passes some trivial tests I've now added. But the
7454 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7455 added to make sure no one expects that this stuff really works in the
7456 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7457 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7459 [Ralf S. Engelschall]
7461 *) Fix the generation of two part addresses in perl.
7462 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7464 *) Add config entry for Linux on MIPS.
7465 [John Tobey <jtobey@channel1.com>]
7467 *) Make links whenever Configure is run, unless we are on Windoze.
7470 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7471 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7475 *) Add a useful kludge to allow package maintainers to specify compiler and
7476 other platforms details on the command line without having to patch the
7477 Configure script everytime: One now can use ``perl Configure
7478 <id>:<details>'', i.e. platform ids are allowed to have details appended
7479 to them (seperated by colons). This is treated as there would be a static
7480 pre-configured entry in Configure's %table under key <id> with value
7481 <details> and ``perl Configure <id>'' is called. So, when you want to
7482 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7483 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7484 now, which overrides the FreeBSD-elf entry on-the-fly.
7485 [Ralf S. Engelschall]
7487 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7490 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7491 on the `perl Configure ...' command line. This way one can compile
7492 OpenSSL libraries with Position Independent Code (PIC) which is needed
7493 for linking it into DSOs.
7494 [Ralf S. Engelschall]
7496 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7500 *) Cleaned up the LICENSE document: The official contact for any license
7501 questions now is the OpenSSL core team under openssl-core@openssl.org.
7502 And add a paragraph about the dual-license situation to make sure people
7503 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7504 to the OpenSSL toolkit.
7505 [Ralf S. Engelschall]
7507 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7508 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7509 Additonally cleaned up the `make links' target: Remove unnecessary
7510 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7511 to speed processing and no longer clutter the display with confusing
7512 stuff. Instead only the actually done links are displayed.
7513 [Ralf S. Engelschall]
7515 *) Permit null encryption ciphersuites, used for authentication only. It used
7516 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7517 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7521 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7522 signed attributes when verifying signatures (this would break them),
7523 the detached data encoding was wrong and public keys obtained using
7524 X509_get_pubkey() weren't freed.
7527 *) Add text documentation for the BUFFER functions. Also added a work around
7528 to a Win95 console bug. This was triggered by the password read stuff: the
7529 last character typed gets carried over to the next fread(). If you were
7530 generating a new cert request using 'req' for example then the last
7531 character of the passphrase would be CR which would then enter the first
7535 *) Added the new `Includes OpenSSL Cryptography Software' button as
7536 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7537 button and can be used by applications based on OpenSSL to show the
7538 relationship to the OpenSSL project.
7539 [Ralf S. Engelschall]
7541 *) Remove confusing variables in function signatures in files
7542 ssl/ssl_lib.c and ssl/ssl.h.
7543 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7545 *) Don't install bss_file.c under PREFIX/include/
7546 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7548 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7549 functions that return function pointers and has support for NT specific
7550 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7551 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7552 unsigned to signed types: this was killing the Win32 compile.
7555 *) Add new certificate file to stack functions,
7556 SSL_add_dir_cert_subjects_to_stack() and
7557 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7558 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7559 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7560 This means that Apache-SSL and similar packages don't have to mess around
7561 to add as many CAs as they want to the preferred list.
7564 *) Experiment with doxygen documentation. Currently only partially applied to
7566 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7567 openssl.doxy as the configuration file.
7570 *) Get rid of remaining C++-style comments which strict C compilers hate.
7571 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7573 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7574 compiled in by default: it has problems with large keys.
7577 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7578 DH private keys and/or callback functions which directly correspond to
7579 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7580 is needed for applications which have to configure certificates on a
7581 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7583 For the RSA certificate situation is makes no difference, but
7584 for the DSA certificate situation this fixes the "no shared cipher"
7585 problem where the OpenSSL cipher selection procedure failed because the
7586 temporary keys were not overtaken from the context and the API provided
7587 no way to reconfigure them.
7588 The new functions now let applications reconfigure the stuff and they
7589 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7590 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7591 non-public-API function ssl_cert_instantiate() is used as a helper
7592 function and also to reduce code redundancy inside ssl_rsa.c.
7593 [Ralf S. Engelschall]
7595 *) Move s_server -dcert and -dkey options out of the undocumented feature
7596 area because they are useful for the DSA situation and should be
7597 recognized by the users.
7598 [Ralf S. Engelschall]
7600 *) Fix the cipher decision scheme for export ciphers: the export bits are
7601 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7602 SSL_EXP_MASK. So, the original variable has to be used instead of the
7603 already masked variable.
7604 [Richard Levitte <levitte@stacken.kth.se>]
7606 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7607 [Richard Levitte <levitte@stacken.kth.se>]
7609 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7610 from `int' to `unsigned int' because it's a length and initialized by
7611 EVP_DigestFinal() which expects an `unsigned int *'.
7612 [Richard Levitte <levitte@stacken.kth.se>]
7614 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7615 script. Instead use the usual Shell->Perl transition trick.
7616 [Ralf S. Engelschall]
7618 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7619 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7620 -noout -modulus' as it's already the case for `openssl rsa -noout
7621 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7622 currently the public key is printed (a decision which was already done by
7623 `openssl dsa -modulus' in the past) which serves a similar purpose.
7624 Additionally the NO_RSA no longer completely removes the whole -modulus
7625 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7627 [Ralf S. Engelschall]
7629 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7630 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7631 [Arne Ansper <arne@ats.cyber.ee>]
7633 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7634 to be added. Now both 'req' and 'ca' can use new objects defined in the
7638 *) Add cool BIO that does syslog (or event log on NT).
7639 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7641 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7642 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7643 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7644 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7647 *) Add preliminary config info for new extension code.
7650 *) Make RSA_NO_PADDING really use no padding.
7651 [Ulf Moeller <ulf@fitug.de>]
7653 *) Generate errors when private/public key check is done.
7656 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7657 for some CRL extensions and new objects added.
7660 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7661 key usage extension and fuller support for authority key id.
7664 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7665 padding method for RSA, which is recommended for new applications in PKCS
7666 #1 v2.0 (RFC 2437, October 1998).
7667 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7668 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7669 against Bleichbacher's attack on RSA.
7670 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7673 *) Updates to the new SSL compression code
7674 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7676 *) Fix so that the version number in the master secret, when passed
7677 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7678 (because the server will not accept higher), that the version number
7679 is 0x03,0x01, not 0x03,0x00
7680 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7682 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7683 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7684 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7687 *) Support for RAW extensions where an arbitrary extension can be
7688 created by including its DER encoding. See apps/openssl.cnf for
7692 *) Make sure latest Perl versions don't interpret some generated C array
7693 code as Perl array code in the crypto/err/err_genc.pl script.
7694 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7696 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7697 not many people have the assembler. Various Win32 compilation fixes and
7698 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7702 *) Modify configure script 'Configure' to automatically create crypto/date.h
7703 file under Win32 and also build pem.h from pem.org. New script
7704 util/mkfiles.pl to create the MINFO file on environments that can't do a
7705 'make files': perl util/mkfiles.pl >MINFO should work.
7708 *) Major rework of DES function declarations, in the pursuit of correctness
7709 and purity. As a result, many evil casts evaporated, and some weirdness,
7710 too. You may find this causes warnings in your code. Zapping your evil
7711 casts will probably fix them. Mostly.
7714 *) Fix for a typo in asn1.h. Bug fix to object creation script
7715 obj_dat.pl. It considered a zero in an object definition to mean
7716 "end of object": none of the objects in objects.h have any zeros
7717 so it wasn't spotted.
7718 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7720 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7721 Masking (CBCM). In the absence of test vectors, the best I have been able
7722 to do is check that the decrypt undoes the encrypt, so far. Send me test
7723 vectors if you have them.
7726 *) Correct calculation of key length for export ciphers (too much space was
7727 allocated for null ciphers). This has not been tested!
7730 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7731 message is now correct (it understands "crypto" and "ssl" on its
7732 command line). There is also now an "update" option. This will update
7733 the util/ssleay.num and util/libeay.num files with any new functions.
7735 perl util/mkdef.pl crypto ssl update
7736 it will update them.
7739 *) Overhauled the Perl interface (perl/*):
7740 - ported BN stuff to OpenSSL's different BN library
7741 - made the perl/ source tree CVS-aware
7742 - renamed the package from SSLeay to OpenSSL (the files still contain
7743 their history because I've copied them in the repository)
7744 - removed obsolete files (the test scripts will be replaced
7745 by better Test::Harness variants in the future)
7746 [Ralf S. Engelschall]
7748 *) First cut for a very conservative source tree cleanup:
7749 1. merge various obsolete readme texts into doc/ssleay.txt
7750 where we collect the old documents and readme texts.
7751 2. remove the first part of files where I'm already sure that we no
7752 longer need them because of three reasons: either they are just temporary
7753 files which were left by Eric or they are preserved original files where
7754 I've verified that the diff is also available in the CVS via "cvs diff
7755 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7756 the crypto/md/ stuff).
7757 [Ralf S. Engelschall]
7759 *) More extension code. Incomplete support for subject and issuer alt
7760 name, issuer and authority key id. Change the i2v function parameters
7761 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7762 what that's for :-) Fix to ASN1 macro which messed up
7763 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7766 *) Preliminary support for ENUMERATED type. This is largely copied from the
7770 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7771 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7773 *) Make sure `make rehash' target really finds the `openssl' program.
7774 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7776 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7777 like to hear about it if this slows down other processors.
7780 *) Add CygWin32 platform information to Configure script.
7781 [Alan Batie <batie@aahz.jf.intel.com>]
7783 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7784 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7786 *) New program nseq to manipulate netscape certificate sequences
7789 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7793 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7794 but the BN code had some problems that would cause failures when
7795 doing certificate verification and some other functions.
7796 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7798 *) Add ASN1 and PEM code to support netscape certificate sequences.
7801 *) Add ASN1 and PEM code to support netscape certificate sequences.
7804 *) Add several PKIX and private extended key usage OIDs.
7807 *) Modify the 'ca' program to handle the new extension code. Modify
7808 openssl.cnf for new extension format, add comments.
7811 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7812 and add a sample to openssl.cnf so req -x509 now adds appropriate
7816 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7817 error code, add initial support to X509_print() and x509 application.
7820 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7821 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7822 stuff is currently isolated and isn't even compiled yet.
7825 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7826 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7827 Removed the versions check from X509 routines when loading extensions:
7828 this allows certain broken certificates that don't set the version
7829 properly to be processed.
7832 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7833 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7834 can still be regenerated with "make depend".
7837 *) Spelling mistake in C version of CAST-128.
7838 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7840 *) Changes to the error generation code. The perl script err-code.pl
7841 now reads in the old error codes and retains the old numbers, only
7842 adding new ones if necessary. It also only changes the .err files if new
7843 codes are added. The makefiles have been modified to only insert errors
7844 when needed (to avoid needlessly modifying header files). This is done
7845 by only inserting errors if the .err file is newer than the auto generated
7846 C file. To rebuild all the error codes from scratch (the old behaviour)
7847 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7848 or delete all the .err files.
7851 *) CAST-128 was incorrectly implemented for short keys. The C version has
7852 been fixed, but is untested. The assembler versions are also fixed, but
7853 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7854 to regenerate it if needed.
7855 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7856 Hagino <itojun@kame.net>]
7858 *) File was opened incorrectly in randfile.c.
7859 [Ulf Möller <ulf@fitug.de>]
7861 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7862 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7863 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7864 al: it's just almost always a UTCTime. Note this patch adds new error
7865 codes so do a "make errors" if there are problems.
7868 *) Correct Linux 1 recognition in config.
7869 [Ulf Möller <ulf@fitug.de>]
7871 *) Remove pointless MD5 hash when using DSA keys in ca.
7872 [Anonymous <nobody@replay.com>]
7874 *) Generate an error if given an empty string as a cert directory. Also
7875 generate an error if handed NULL (previously returned 0 to indicate an
7876 error, but didn't set one).
7877 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7879 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7882 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7883 parameters. This was causing a warning which killed off the Win32 compile.
7886 *) Remove C++ style comments from crypto/bn/bn_local.h.
7887 [Neil Costigan <neil.costigan@celocom.com>]
7889 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7890 based on a text string, looking up short and long names and finally
7891 "dot" format. The "dot" format stuff didn't work. Added new function
7892 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7893 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7894 OID is not part of the table.
7897 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7898 X509_LOOKUP_by_alias().
7901 *) Sort openssl functions by name.
7904 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7905 encryption from sample DSA keys (in case anyone is interested the password
7909 *) Make _all_ *_free functions accept a NULL pointer.
7910 [Frans Heymans <fheymans@isaserver.be>]
7912 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7914 [Anonymous <nobody@replay.com>]
7916 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7917 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7919 *) Don't blow it for numeric -newkey arguments to apps/req.
7920 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7922 *) Temp key "for export" tests were wrong in s3_srvr.c.
7923 [Anonymous <nobody@replay.com>]
7925 *) Add prototype for temp key callback functions
7926 SSL_CTX_set_tmp_{rsa,dh}_callback().
7929 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7930 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7933 *) X509_name_add_entry() freed the wrong thing after an error.
7934 [Arne Ansper <arne@ats.cyber.ee>]
7936 *) rsa_eay.c would attempt to free a NULL context.
7937 [Arne Ansper <arne@ats.cyber.ee>]
7939 *) BIO_s_socket() had a broken should_retry() on Windoze.
7940 [Arne Ansper <arne@ats.cyber.ee>]
7942 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7943 [Arne Ansper <arne@ats.cyber.ee>]
7945 *) Make sure the already existing X509_STORE->depth variable is initialized
7946 in X509_STORE_new(), but document the fact that this variable is still
7947 unused in the certificate verification process.
7948 [Ralf S. Engelschall]
7950 *) Fix the various library and apps files to free up pkeys obtained from
7951 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7954 *) Fix reference counting in X509_PUBKEY_get(). This makes
7955 demos/maurice/example2.c work, amongst others, probably.
7956 [Steve Henson and Ben Laurie]
7958 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7959 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7960 are no longer created. This way we have a single and consistent command
7961 line interface `openssl <command>', similar to `cvs <command>'.
7962 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7964 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7965 BIT STRING wrapper always have zero unused bits.
7968 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7971 *) Make the top-level INSTALL documentation easier to understand.
7974 *) Makefiles updated to exit if an error occurs in a sub-directory
7975 make (including if user presses ^C) [Paul Sutton]
7977 *) Make Montgomery context stuff explicit in RSA data structure.
7980 *) Fix build order of pem and err to allow for generated pem.h.
7983 *) Fix renumbering bug in X509_NAME_delete_entry().
7986 *) Enhanced the err-ins.pl script so it makes the error library number
7987 global and can add a library name. This is needed for external ASN1 and
7988 other error libraries.
7991 *) Fixed sk_insert which never worked properly.
7994 *) Fix ASN1 macros so they can handle indefinite length construted
7995 EXPLICIT tags. Some non standard certificates use these: they can now
7999 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8000 into a single doc/ssleay.txt bundle. This way the information is still
8001 preserved but no longer messes up this directory. Now it's new room for
8002 the new set of documenation files.
8003 [Ralf S. Engelschall]
8005 *) SETs were incorrectly DER encoded. This was a major pain, because they
8006 shared code with SEQUENCEs, which aren't coded the same. This means that
8007 almost everything to do with SETs or SEQUENCEs has either changed name or
8008 number of arguments.
8009 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8011 *) Fix test data to work with the above.
8014 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8015 was already fixed by Eric for 0.9.1 it seems.
8016 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8018 *) Autodetect FreeBSD3.
8021 *) Fix various bugs in Configure. This affects the following platforms:
8025 unixware-2.0-pentium
8029 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8030 before they are needed.
8033 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8037 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8039 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8040 changed SSLeay to OpenSSL in version strings.
8041 [Ralf S. Engelschall]
8043 *) Some fixups to the top-level documents.
8046 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8047 because the symlink to include/ was missing.
8048 [Ralf S. Engelschall]
8050 *) Incorporated the popular no-RSA/DSA-only patches
8051 which allow to compile a RSA-free SSLeay.
8052 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8054 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8055 when "ssleay" is still not found.
8056 [Ralf S. Engelschall]
8058 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8059 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8061 *) Updated the README file.
8062 [Ralf S. Engelschall]
8064 *) Added various .cvsignore files in the CVS repository subdirs
8065 to make a "cvs update" really silent.
8066 [Ralf S. Engelschall]
8068 *) Recompiled the error-definition header files and added
8069 missing symbols to the Win32 linker tables.
8070 [Ralf S. Engelschall]
8072 *) Cleaned up the top-level documents;
8073 o new files: CHANGES and LICENSE
8074 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8075 o merged COPYRIGHT into LICENSE
8076 o removed obsolete TODO file
8077 o renamed MICROSOFT to INSTALL.W32
8078 [Ralf S. Engelschall]
8080 *) Removed dummy files from the 0.9.1b source tree:
8081 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8082 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8083 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8084 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8085 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8086 [Ralf S. Engelschall]
8088 *) Added various platform portability fixes.
8091 *) The Genesis of the OpenSSL rpject:
8092 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8093 Young and Tim J. Hudson created while they were working for C2Net until
8095 [The OpenSSL Project]
8098 Changes between 0.9.0b and 0.9.1b [not released]
8100 *) Updated a few CA certificates under certs/
8103 *) Changed some BIGNUM api stuff.
8106 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8107 DGUX x86, Linux Alpha, etc.
8110 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8111 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8115 *) Add -strparse option to asn1pars program which parses nested
8117 [Dr Stephen Henson <shenson@bigfoot.com>]
8119 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8122 *) DSA fix for "ca" program.
8125 *) Added "-genkey" option to "dsaparam" program.
8128 *) Added RIPE MD160 (rmd160) message digest.
8131 *) Added -a (all) option to "ssleay version" command.
8134 *) Added PLATFORM define which is the id given to Configure.
8137 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8140 *) Extended the ASN.1 parser routines.
8143 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8146 *) Added a BN_CTX to the BN library.
8149 *) Fixed the weak key values in DES library
8152 *) Changed API in EVP library for cipher aliases.
8155 *) Added support for RC2/64bit cipher.
8158 *) Converted the lhash library to the crypto/mem.c functions.
8161 *) Added more recognized ASN.1 object ids.
8164 *) Added more RSA padding checks for SSL/TLS.
8167 *) Added BIO proxy/filter functionality.
8170 *) Added extra_certs to SSL_CTX which can be used
8171 send extra CA certificates to the client in the CA cert chain sending
8172 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8175 *) Now Fortezza is denied in the authentication phase because
8176 this is key exchange mechanism is not supported by SSLeay at all.
8179 *) Additional PKCS1 checks.
8182 *) Support the string "TLSv1" for all TLS v1 ciphers.
8185 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8186 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8189 *) Fixed a few memory leaks.
8192 *) Fixed various code and comment typos.
8195 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8196 bytes sent in the client random.
8197 [Edward Bishop <ebishop@spyglass.com>]