5 Changes between 0.9.8e and 0.9.9 [xx XXX xxxx]
7 *) Change ssl_create_cipher_list() so that it automatically
8 arranges the ciphersuites in reasonable order before starting
9 to process the rule string. Thus, the definition for "DEFAULT"
10 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
11 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
12 This makes it much easier to arrive at a reasonable default order
13 in applications for which anonymous ciphers are OK (meaning
14 that you can't actually use DEFAULT).
15 [Bodo Moeller; suggested by Victor Duchovni]
17 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
18 processing) into multiple integers instead of setting
19 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
20 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
21 (These masks as well as the individual bit definitions are hidden
22 away into the non-exported interface ssl/ssl_locl.h, so this
23 change to the definition of the SSL_CIPHER structure shouldn't
24 affect applications.) This give us more bits for each of these
25 categories, so there is no longer a need to coagulate AES128 and
26 AES256 into a single algorithm bit, and to coagulate Camellia128
27 and Camellia256 into a single algorithm bit, which has led to all
30 Thus, among other things, the kludge introduced in 0.9.7m and
31 0.9.8e for masking out AES256 independently of AES128 or masking
32 out Camellia256 independently of AES256 is not needed here in 0.9.9.
34 With the change, we also introduce new ciphersuite aliases that
35 so far were missing: "AES128", "AES256", "CAMELLIA128", and
39 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
40 Use the leftmost N bytes of the signature input if the input is
41 larger than the prime q (with N being the size in bytes of q).
44 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
45 it yet and it is largely untested.
48 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
51 *) Initial incomplete changes to avoid need for function casts in OpenSSL
52 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
53 their use. Safestack is reimplemented using inline functions: tests show
54 that these calls are typically optimized away by compilers so they have
55 no additional overhead. Update ASN1 to avoid use of legacy functions.
58 *) Win32/64 targets are linked with Winsock2.
61 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
62 to external functions. This can be used to increase CRL handling
63 efficiency especially when CRLs are very large by (for example) storing
64 the CRL revoked certificates in a database.
67 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
68 new CRLs added to a directory can be used. New command line option
69 -verify_return_error to s_client and s_server. This causes real errors
70 to be returned by the verify callback instead of carrying on no matter
71 what. This reflects the way a "real world" verify callback would behave.
74 *) GOST engine, supporting several GOST algorithms and public key formats.
75 Kindly donated by Cryptocom.
78 *) Partial support for Issuing Distribution Point CRL extension. CRLs
79 partitioned by DP are handled but no indirect CRL or reason partitioning
80 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
81 selected via a scoring technique which handles IDP and AKID in CRLs.
84 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
85 will ultimately be used for all verify operations: this will remove the
86 X509_STORE dependency on certificate verification and allow alternative
87 lookup methods. X509_STORE based implementations of these two callbacks.
90 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
91 Modify get_crl() to find a valid (unexpired) CRL if possible.
94 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
95 this would be called X509_CRL_cmp() but that name is already used by
96 a function that just compares CRL issuer names. Cache several CRL
97 extensions in X509_CRL structure and cache CRLDP in X509.
100 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
101 this maps equivalent X509_NAME structures into a consistent structure.
102 Name comparison can then be performed rapidly using memcmp().
105 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
109 *) Allow digests to supply their own micalg string for S/MIME type using
110 the ctrl EVP_MD_CTRL_MICALG.
113 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
114 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
115 ctrl. It can then customise the structure before and/or after signing
119 *) New function OBJ_add_sigid() to allow application defined signature OIDs
120 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
121 to free up any added signature OIDs.
124 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
125 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
126 digest and cipher tables. New options added to openssl utility:
127 list-message-digest-algorithms and list-cipher-algorithms.
130 *) In addition to the numerical (unsigned long) thread ID, provide
131 for a pointer (void *) thread ID. This helps accomodate systems
132 that do not provide an unsigned long thread ID. OpenSSL assumes
133 it is in the same thread iff both the numerical and the pointer
134 thread ID agree; so applications are just required to define one
135 of them appropriately (e.g., by using a pointer to a per-thread
136 memory object malloc()ed by the application for the pointer-type
137 thread ID). Exactly analoguous to the existing functions
139 void CRYPTO_set_id_callback(unsigned long (*func)(void));
140 unsigned long (*CRYPTO_get_id_callback(void))(void);
141 unsigned long CRYPTO_thread_id(void);
143 we now have additional functions
145 void CRYPTO_set_idptr_callback(void *(*func)(void));
146 void *(*CRYPTO_get_idptr_callback(void))(void);
147 void *CRYPTO_thread_idptr(void);
149 also in <openssl/crypto.h>. The default value for
150 CRYPTO_thread_idptr() if the application has not provided its own
154 *) Change the array representation of binary polynomials: the list
155 of degrees of non-zero coefficients is now terminated with -1.
156 Previously it was terminated with 0, which was also part of the
157 value; thus, the array representation was not applicable to
158 polynomials where t^0 has coefficient zero. This change makes
159 the array representation useful in a more general context.
162 *) Various modifications and fixes to SSL/TLS cipher string
163 handling. For ECC, the code now distinguishes between fixed ECDH
164 with RSA certificates on the one hand and with ECDSA certificates
165 on the other hand, since these are separate ciphersuites. The
166 unused code for Fortezza ciphersuites has been removed.
168 For consistency with EDH, ephemeral ECDH is now called "EECDH"
169 (not "ECDHE"). For consistency with the code for DH
170 certificates, use of ECDH certificates is now considered ECDH
171 authentication, not RSA or ECDSA authentication (the latter is
172 merely the CA's signing algorithm and not actively used in the
175 The temporary ciphersuite alias "ECCdraft" is no longer
176 available, and ECC ciphersuites are no longer excluded from "ALL"
177 and "DEFAULT". The following aliases now exist for RFC 4492
178 ciphersuites, most of these by analogy with the DH case:
180 kECDHr - ECDH cert, signed with RSA
181 kECDHe - ECDH cert, signed with ECDSA
182 kECDH - ECDH cert (signed with either RSA or ECDSA)
183 kEECDH - ephemeral ECDH
184 ECDH - ECDH cert or ephemeral ECDH
190 AECDH - anonymous ECDH
191 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
195 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
196 Use correct micalg parameters depending on digest(s) in signed message.
199 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
200 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
203 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
204 an engine to register a method. Add ENGINE lookups for methods and
205 functional reference processing.
208 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
209 EVP_{Sign,Verify}* which allow an application to customise the signature
213 *) New -resign option to smime utility. This adds one or more signers
214 to an existing PKCS#7 signedData structure. Also -md option to use an
215 alternative message digest algorithm for signing.
218 *) Tidy up PKCS#7 routines and add new functions to make it easier to
219 create PKCS7 structures containing multiple signers. Update smime
220 application to support multiple signers.
223 *) New -macalg option to pkcs12 utility to allow setting of an alternative
227 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
228 Reorganize PBE internals to lookup from a static table using NIDs,
229 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
230 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
231 PRF which will be automatically used with PBES2.
234 *) Replace the algorithm specific calls to generate keys in "req" with the
238 *) Update PKCS#7 enveloped data routines to use new API. This is now
239 supported by any public key method supporting the encrypt operation. A
240 ctrl is added to allow the public key algorithm to examine or modify
241 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
245 *) Add a ctrl to asn1 method to allow a public key algorithm to express
246 a default digest type to use. In most cases this will be SHA1 but some
247 algorithms (such as GOST) need to specify an alternative digest. The
248 return value indicates how strong the prefernce is 1 means optional and
249 2 is mandatory (that is it is the only supported type). Modify
250 ASN1_item_sign() to accept a NULL digest argument to indicate it should
251 use the default md. Update openssl utilities to use the default digest
252 type for signing if it is not explicitly indicated.
255 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
256 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
257 signing method from the key type. This effectively removes the link
258 between digests and public key types.
261 *) Add an OID cross reference table and utility functions. Its purpose is to
262 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
263 rsaEncryption. This will allow some of the algorithm specific hackery
264 needed to use the correct OID to be removed.
267 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
268 structures for PKCS7_sign(). They are now set up by the relevant public
272 *) Add provisional EC pkey method with support for ECDSA and ECDH.
275 *) Add support for key derivation (agreement) in the API, DH method and
279 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
280 public and private key formats. As a side effect these add additional
281 command line functionality not previously available: DSA signatures can be
282 generated and verified using pkeyutl and DH key support and generation in
287 [Oliver Tappe <zooey@hirschkaefer.de>]
289 *) New make target "install_html_docs" installs HTML renditions of the
291 [Oliver Tappe <zooey@hirschkaefer.de>]
293 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
294 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
295 support key and parameter generation and add initial key generation
296 functionality for RSA.
299 *) Add functions for main EVP_PKEY_method operations. The undocumented
300 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
301 EVP_PKEY_{encrypt,decrypt}_old.
304 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
305 key API, doesn't do much yet.
308 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
309 public key algorithms. New option to openssl utility:
310 "list-public-key-algorithms" to print out info.
313 *) Implement the Supported Elliptic Curves Extension for
314 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
317 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
318 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
321 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
322 utilities such as rsa, dsa, dsaparam etc except they process any key
326 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
327 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
328 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
332 *) Initial support for pluggable public key ASN1.
333 De-spaghettify the public key ASN1 handling. Move public and private
334 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
335 algorithm specific handling to a single module within the relevant
336 algorithm directory. Add functions to allow (near) opaque processing
337 of public and private key structures.
340 *) Implement the Supported Point Formats Extension for
341 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
344 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
345 for the psk identity [hint] and the psk callback functions to the
346 SSL_SESSION, SSL and SSL_CTX structure.
349 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
353 SSL_CTX_use_psk_identity_hint
354 SSL_get_psk_identity_hint
356 SSL_use_psk_identity_hint
358 [Mika Kousa and Pasi Eronen of Nokia Corporation]
360 *) Add RFC 3161 compliant time stamp request creation, response generation
361 and response verification functionality.
362 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
364 *) Add initial support for TLS extensions, specifically for the server_name
365 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
366 have new members for a host name. The SSL data structure has an
367 additional member SSL_CTX *initial_ctx so that new sessions can be
368 stored in that context to allow for session resumption, even after the
369 SSL has been switched to a new SSL_CTX in reaction to a client's
370 server_name extension.
372 New functions (subject to change):
375 SSL_get_servername_type()
378 New CTRL codes and macros (subject to change):
380 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
381 - SSL_CTX_set_tlsext_servername_callback()
382 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
383 - SSL_CTX_set_tlsext_servername_arg()
384 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
386 openssl s_client has a new '-servername ...' option.
388 openssl s_server has new options '-servername_host ...', '-cert2 ...',
389 '-key2 ...', '-servername_fatal' (subject to change). This allows
390 testing the HostName extension for a specific single host name ('-cert'
391 and '-key' remain fallbacks for handshakes without HostName
392 negotiation). If the unrecogninzed_name alert has to be sent, this by
393 default is a warning; it becomes fatal with the '-servername_fatal'
396 [Peter Sylvester, Remy Allais, Christophe Renou]
398 *) Whirlpool hash implementation is added.
401 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
402 bn(64,32). Because of instruction set limitations it doesn't have
403 any negative impact on performance. This was done mostly in order
404 to make it possible to share assembler modules, such as bn_mul_mont
405 implementations, between 32- and 64-bit builds without hassle.
408 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
409 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
413 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
414 dedicated Montgomery multiplication procedure, is introduced.
415 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
416 "64-bit" performance on certain 32-bit targets.
419 *) New option SSL_OP_NO_COMP to disable use of compression selectively
420 in SSL structures. New SSL ctrl to set maximum send fragment size.
421 Save memory by seeting the I/O buffer sizes dynamically instead of
422 using the maximum available value.
425 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
426 in addition to the text details.
429 *) Very, very preliminary EXPERIMENTAL support for printing of general
430 ASN1 structures. This currently produces rather ugly output and doesn't
431 handle several customised structures at all.
434 *) Integrated support for PVK file format and some related formats such
435 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
436 these in the 'rsa' and 'dsa' utilities.
439 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
442 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
443 place for the (very old) "NETSCAPE" format certificates which are now
444 handled using new ASN1 code equivalents.
447 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
448 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
449 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
452 *) Modify CRL distribution points extension code to print out previously
453 unsupported fields. Enhance extension setting code to allow setting of
457 *) Add print and set support for Issuing Distribution Point CRL extension.
460 *) Change 'Configure' script to enable Camellia by default.
463 Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
465 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
466 a ciphersuite string such as "DEFAULT:RSA" cannot enable
467 authentication-only ciphersuites.
470 *) Since AES128 and AES256 (and similarly Camellia128 and
471 Camellia256) share a single mask bit in the logic of
472 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
473 kludge to work properly if AES128 is available and AES256 isn't
474 (or if Camellia128 is available and Camellia256 isn't).
477 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
478 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
479 When a point or a seed is encoded in a BIT STRING, we need to
480 prevent the removal of trailing zero bits to get the proper DER
481 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
482 of a NamedBitList, for which trailing 0 bits need to be removed.)
485 *) Have SSL/TLS server implementation tolerate "mismatched" record
486 protocol version while receiving ClientHello even if the
487 ClientHello is fragmented. (The server can't insist on the
488 particular protocol version it has chosen before the ServerHello
489 message has informed the client about his choice.)
492 *) Add RFC 3779 support.
493 [Rob Austein for ARIN, Ben Laurie]
495 *) Load error codes if they are not already present instead of using a
496 static variable. This allows them to be cleanly unloaded and reloaded.
497 Improve header file function name parsing.
500 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
502 *) Introduce limits to prevent malicious keys being able to
503 cause a denial of service. (CVE-2006-2940)
504 [Steve Henson, Bodo Moeller]
506 *) Fix ASN.1 parsing of certain invalid structures that can result
507 in a denial of service. (CVE-2006-2937) [Steve Henson]
509 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
510 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
512 *) Fix SSL client code which could crash if connecting to a
513 malicious SSLv2 server. (CVE-2006-4343)
514 [Tavis Ormandy and Will Drewry, Google Security Team]
516 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
517 match only those. Before that, "AES256-SHA" would be interpreted
518 as a pattern and match "AES128-SHA" too (since AES128-SHA got
519 the same strength classification in 0.9.7h) as we currently only
520 have a single AES bit in the ciphersuite description bitmap.
521 That change, however, also applied to ciphersuite strings such as
522 "RC4-MD5" that intentionally matched multiple ciphersuites --
523 namely, SSL 2.0 ciphersuites in addition to the more common ones
524 from SSL 3.0/TLS 1.0.
526 So we change the selection algorithm again: Naming an explicit
527 ciphersuite selects this one ciphersuite, and any other similar
528 ciphersuite (same bitmap) from *other* protocol versions.
529 Thus, "RC4-MD5" again will properly select both the SSL 2.0
530 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
532 Since SSL 2.0 does not have any ciphersuites for which the
533 128/256 bit distinction would be relevant, this works for now.
534 The proper fix will be to use different bits for AES128 and
535 AES256, which would have avoided the problems from the beginning;
536 however, bits are scarce, so we can only do this in a new release
537 (not just a patchlevel) when we can change the SSL_CIPHER
538 definition to split the single 'unsigned long mask' bitmap into
539 multiple values to extend the available space.
543 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
545 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
546 (CVE-2006-4339) [Ben Laurie and Google Security Team]
548 *) Add AES IGE and biIGE modes.
551 *) Change the Unix randomness entropy gathering to use poll() when
552 possible instead of select(), since the latter has some
553 undesirable limitations.
554 [Darryl Miles via Richard Levitte and Bodo Moeller]
556 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
557 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
558 cannot be implicitly activated as part of, e.g., the "AES" alias.
559 However, please upgrade to OpenSSL 0.9.9[-dev] for
560 non-experimental use of the ECC ciphersuites to get TLS extension
561 support, which is required for curve and point format negotiation
562 to avoid potential handshake problems.
565 *) Disable rogue ciphersuites:
567 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
568 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
569 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
571 The latter two were purportedly from
572 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
575 Also deactivate the remaining ciphersuites from
576 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
577 unofficial, and the ID has long expired.
580 *) Fix RSA blinding Heisenbug (problems sometimes occured on
581 dual-core machines) and other potential thread-safety issues.
584 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
585 versions), which is now available for royalty-free use
586 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
587 Also, add Camellia TLS ciphersuites from RFC 4132.
589 To minimize changes between patchlevels in the OpenSSL 0.9.8
590 series, Camellia remains excluded from compilation unless OpenSSL
591 is configured with 'enable-camellia'.
594 *) Disable the padding bug check when compression is in use. The padding
595 bug check assumes the first packet is of even length, this is not
596 necessarily true if compresssion is enabled and can result in false
597 positives causing handshake failure. The actual bug test is ancient
598 code so it is hoped that implementations will either have fixed it by
599 now or any which still have the bug do not support compression.
602 Changes between 0.9.8a and 0.9.8b [04 May 2006]
604 *) When applying a cipher rule check to see if string match is an explicit
605 cipher suite and only match that one cipher suite if it is.
608 *) Link in manifests for VC++ if needed.
609 [Austin Ziegler <halostatue@gmail.com>]
611 *) Update support for ECC-based TLS ciphersuites according to
612 draft-ietf-tls-ecc-12.txt with proposed changes (but without
613 TLS extensions, which are supported starting with the 0.9.9
614 branch, not in the OpenSSL 0.9.8 branch).
617 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
618 opaque EVP_CIPHER_CTX handling.
621 *) Fixes and enhancements to zlib compression code. We now only use
622 "zlib1.dll" and use the default __cdecl calling convention on Win32
623 to conform with the standards mentioned here:
624 http://www.zlib.net/DLL_FAQ.txt
625 Static zlib linking now works on Windows and the new --with-zlib-include
626 --with-zlib-lib options to Configure can be used to supply the location
627 of the headers and library. Gracefully handle case where zlib library
631 *) Several fixes and enhancements to the OID generation code. The old code
632 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
633 handle numbers larger than ULONG_MAX, truncated printing and had a
634 non standard OBJ_obj2txt() behaviour.
637 *) Add support for building of engines under engine/ as shared libraries
638 under VC++ build system.
641 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
642 Hopefully, we will not see any false combination of paths any more.
645 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
647 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
648 (part of SSL_OP_ALL). This option used to disable the
649 countermeasure against man-in-the-middle protocol-version
650 rollback in the SSL 2.0 server implementation, which is a bad
651 idea. (CVE-2005-2969)
653 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
654 for Information Security, National Institute of Advanced Industrial
655 Science and Technology [AIST], Japan)]
657 *) Add two function to clear and return the verify parameter flags.
660 *) Keep cipherlists sorted in the source instead of sorting them at
661 runtime, thus removing the need for a lock.
664 *) Avoid some small subgroup attacks in Diffie-Hellman.
665 [Nick Mathewson and Ben Laurie]
667 *) Add functions for well-known primes.
670 *) Extended Windows CE support.
671 [Satoshi Nakamura and Andy Polyakov]
673 *) Initialize SSL_METHOD structures at compile time instead of during
674 runtime, thus removing the need for a lock.
677 *) Make PKCS7_decrypt() work even if no certificate is supplied by
678 attempting to decrypt each encrypted key in turn. Add support to
682 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
684 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
687 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
690 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
691 key into the same file any more.
694 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
697 *) Add -utf8 command line and config file option to 'ca'.
698 [Stefan <stf@udoma.org]
700 *) Removed the macro des_crypt(), as it seems to conflict with some
701 libraries. Use DES_crypt().
704 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
705 involves renaming the source and generated shared-libs for
706 both. The engines will accept the corrected or legacy ids
707 ('ncipher' and '4758_cca' respectively) when binding. NB,
708 this only applies when building 'shared'.
709 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
711 *) Add attribute functions to EVP_PKEY structure. Modify
712 PKCS12_create() to recognize a CSP name attribute and
713 use it. Make -CSP option work again in pkcs12 utility.
716 *) Add new functionality to the bn blinding code:
717 - automatic re-creation of the BN_BLINDING parameters after
718 a fixed number of uses (currently 32)
719 - add new function for parameter creation
720 - introduce flags to control the update behaviour of the
721 BN_BLINDING parameters
722 - hide BN_BLINDING structure
723 Add a second BN_BLINDING slot to the RSA structure to improve
724 performance when a single RSA object is shared among several
728 *) Add support for DTLS.
729 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
731 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
732 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
735 *) Remove buggy and incompletet DH cert support from
736 ssl/ssl_rsa.c and ssl/s3_both.c
739 *) Use SHA-1 instead of MD5 as the default digest algorithm for
740 the apps/openssl applications.
743 *) Compile clean with "-Wall -Wmissing-prototypes
744 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
745 DEBUG_SAFESTACK must also be set.
748 *) Change ./Configure so that certain algorithms can be disabled by default.
749 The new counterpiece to "no-xxx" is "enable-xxx".
751 The patented RC5 and MDC2 algorithms will now be disabled unless
752 "enable-rc5" and "enable-mdc2", respectively, are specified.
754 (IDEA remains enabled despite being patented. This is because IDEA
755 is frequently required for interoperability, and there is no license
756 fee for non-commercial use. As before, "no-idea" can be used to
757 avoid this algorithm.)
761 *) Add processing of proxy certificates (see RFC 3820). This work was
762 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
763 EGEE (Enabling Grids for E-science in Europe).
766 *) RC4 performance overhaul on modern architectures/implementations, such
767 as Intel P4, IA-64 and AMD64.
770 *) New utility extract-section.pl. This can be used specify an alternative
771 section number in a pod file instead of having to treat each file as
772 a separate case in Makefile. This can be done by adding two lines to the
775 =for comment openssl_section:XXX
777 The blank line is mandatory.
781 *) New arguments -certform, -keyform and -pass for s_client and s_server
782 to allow alternative format key and certificate files and passphrase
786 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
787 update associated structures and add various utility functions.
789 Add new policy related verify parameters, include policy checking in
790 standard verify code. Enhance 'smime' application with extra parameters
791 to support policy checking and print out.
794 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
795 Nehemiah processors. These extensions support AES encryption in hardware
796 as well as RNG (though RNG support is currently disabled).
797 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
799 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
802 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
803 [Andy Polyakov and a number of other people]
805 *) Improved PowerPC platform support. Most notably BIGNUM assembler
806 implementation contributed by IBM.
807 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
809 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
810 exponent rather than 'unsigned long'. There is a corresponding change to
811 the new 'rsa_keygen' element of the RSA_METHOD structure.
812 [Jelte Jansen, Geoff Thorpe]
814 *) Functionality for creating the initial serial number file is now
815 moved from CA.pl to the 'ca' utility with a new option -create_serial.
817 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
818 number file to 1, which is bound to cause problems. To avoid
819 the problems while respecting compatibility between different 0.9.7
820 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
821 CA.pl for serial number initialization. With the new release 0.9.8,
822 we can fix the problem directly in the 'ca' utility.)
825 *) Reduced header interdepencies by declaring more opaque objects in
826 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
827 give fewer recursive includes, which could break lazy source code - so
828 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
829 developers should define this symbol when building and using openssl to
830 ensure they track the recommended behaviour, interfaces, [etc], but
831 backwards-compatible behaviour prevails when this isn't defined.
834 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
837 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
838 This will generate a random key of the appropriate length based on the
839 cipher context. The EVP_CIPHER can provide its own random key generation
840 routine to support keys of a specific form. This is used in the des and
841 3des routines to generate a key of the correct parity. Update S/MIME
842 code to use new functions and hence generate correct parity DES keys.
843 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
844 valid (weak or incorrect parity).
847 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
848 as looking them up. This is useful when the verified structure may contain
849 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
850 present unless the new PKCS7_NO_CRL flag is asserted.
853 *) Extend ASN1 oid configuration module. It now additionally accepts the
856 shortName = some long name, 1.2.3.4
859 *) Reimplemented the BN_CTX implementation. There is now no more static
860 limitation on the number of variables it can handle nor the depth of the
861 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
862 information can now expand as required, and rather than having a single
863 static array of bignums, BN_CTX now uses a linked-list of such arrays
864 allowing it to expand on demand whilst maintaining the usefulness of
868 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
869 to allow all RSA operations to function using a single BN_CTX.
872 *) Preliminary support for certificate policy evaluation and checking. This
873 is initially intended to pass the tests outlined in "Conformance Testing
874 of Relying Party Client Certificate Path Processing Logic" v1.07.
877 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
878 remained unused and not that useful. A variety of other little bignum
879 tweaks and fixes have also been made continuing on from the audit (see
883 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
884 associated ASN1, EVP and SSL functions and old ASN1 macros.
887 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
888 and this should never fail. So the return value from the use of
889 BN_set_word() (which can fail due to needless expansion) is now deprecated;
890 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
893 *) BN_CTX_get() should return zero-valued bignums, providing the same
894 initialised value as BN_new().
895 [Geoff Thorpe, suggested by Ulf Möller]
897 *) Support for inhibitAnyPolicy certificate extension.
900 *) An audit of the BIGNUM code is underway, for which debugging code is
901 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
902 is considered valid when processing BIGNUMs, and causes execution to
903 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
904 further steps are taken to deliberately pollute unused data in BIGNUM
905 structures to try and expose faulty code further on. For now, openssl will
906 (in its default mode of operation) continue to tolerate the inconsistent
907 forms that it has tolerated in the past, but authors and packagers should
908 consider trying openssl and their own applications when compiled with
909 these debugging symbols defined. It will help highlight potential bugs in
910 their own code, and will improve the test coverage for OpenSSL itself. At
911 some point, these tighter rules will become openssl's default to improve
912 maintainability, though the assert()s and other overheads will remain only
913 in debugging configurations. See bn.h for more details.
914 [Geoff Thorpe, Nils Larsch, Ulf Möller]
916 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
917 that can only be obtained through BN_CTX_new() (which implicitly
918 initialises it). The presence of this function only made it possible
919 to overwrite an existing structure (and cause memory leaks).
922 *) Because of the callback-based approach for implementing LHASH as a
923 template type, lh_insert() adds opaque objects to hash-tables and
924 lh_doall() or lh_doall_arg() are typically used with a destructor callback
925 to clean up those corresponding objects before destroying the hash table
926 (and losing the object pointers). So some over-zealous constifications in
927 LHASH have been relaxed so that lh_insert() does not take (nor store) the
928 objects as "const" and the lh_doall[_arg] callback wrappers are not
929 prototyped to have "const" restrictions on the object pointers they are
930 given (and so aren't required to cast them away any more).
933 *) The tmdiff.h API was so ugly and minimal that our own timing utility
934 (speed) prefers to use its own implementation. The two implementations
935 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
936 its object type properly exposed (MS_TM) instead of casting to/from "char
937 *". This may still change yet if someone realises MS_TM and "ms_time_***"
938 aren't necessarily the greatest nomenclatures - but this is what was used
939 internally to the implementation so I've used that for now.
942 *) Ensure that deprecated functions do not get compiled when
943 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
944 the self-tests were still using deprecated key-generation functions so
945 these have been updated also.
948 *) Reorganise PKCS#7 code to separate the digest location functionality
949 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
950 New function PKCS7_set_digest() to set the digest type for PKCS#7
951 digestedData type. Add additional code to correctly generate the
952 digestedData type and add support for this type in PKCS7 initialization
956 *) New function PKCS7_set0_type_other() this initializes a PKCS7
957 structure of type "other".
960 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
961 sure the loop does correctly stop and breaking ("division by zero")
962 modulus operations are not performed. The (pre-generated) prime
963 table crypto/bn/bn_prime.h was already correct, but it could not be
964 re-generated on some platforms because of the "division by zero"
965 situation in the script.
966 [Ralf S. Engelschall]
968 *) Update support for ECC-based TLS ciphersuites according to
969 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
970 SHA-1 now is only used for "small" curves (where the
971 representation of a field element takes up to 24 bytes); for
972 larger curves, the field element resulting from ECDH is directly
973 used as premaster secret.
974 [Douglas Stebila (Sun Microsystems Laboratories)]
976 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
977 curve secp160r1 to the tests.
978 [Douglas Stebila (Sun Microsystems Laboratories)]
980 *) Add the possibility to load symbols globally with DSO.
981 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
983 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
984 control of the error stack.
987 *) Add support for STORE in ENGINE.
990 *) Add the STORE type. The intention is to provide a common interface
991 to certificate and key stores, be they simple file-based stores, or
992 HSM-type store, or LDAP stores, or...
993 NOTE: The code is currently UNTESTED and isn't really used anywhere.
996 *) Add a generic structure called OPENSSL_ITEM. This can be used to
997 pass a list of arguments to any function as well as provide a way
998 for a function to pass data back to the caller.
1001 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1002 works like BUF_strdup() but can be used to duplicate a portion of
1003 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1007 *) Add the function sk_find_ex() which works like sk_find(), but will
1008 return an index to an element even if an exact match couldn't be
1009 found. The index is guaranteed to point at the element where the
1010 searched-for key would be inserted to preserve sorting order.
1013 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1014 takes an extra flags argument for optional functionality. Currently,
1015 the following flags are defined:
1017 OBJ_BSEARCH_VALUE_ON_NOMATCH
1018 This one gets OBJ_bsearch_ex() to return a pointer to the first
1019 element where the comparing function returns a negative or zero
1022 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1023 This one gets OBJ_bsearch_ex() to return a pointer to the first
1024 element where the comparing function returns zero. This is useful
1025 if there are more than one element where the comparing function
1029 *) Make it possible to create self-signed certificates with 'openssl ca'
1030 in such a way that the self-signed certificate becomes part of the
1031 CA database and uses the same mechanisms for serial number generation
1032 as all other certificate signing. The new flag '-selfsign' enables
1033 this functionality. Adapt CA.sh and CA.pl.in.
1036 *) Add functionality to check the public key of a certificate request
1037 against a given private. This is useful to check that a certificate
1038 request can be signed by that key (self-signing).
1041 *) Make it possible to have multiple active certificates with the same
1042 subject in the CA index file. This is done only if the keyword
1043 'unique_subject' is set to 'no' in the main CA section (default
1044 if 'CA_default') of the configuration file. The value is saved
1045 with the database itself in a separate index attribute file,
1046 named like the index file with '.attr' appended to the name.
1049 *) Generate muti valued AVAs using '+' notation in config files for
1053 *) Support for nameConstraints certificate extension.
1056 *) Support for policyConstraints certificate extension.
1059 *) Support for policyMappings certificate extension.
1062 *) Make sure the default DSA_METHOD implementation only uses its
1063 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1064 and change its own handlers to be NULL so as to remove unnecessary
1065 indirection. This lets alternative implementations fallback to the
1066 default implementation more easily.
1069 *) Support for directoryName in GeneralName related extensions
1073 *) Make it possible to link applications using Makefile.shared.
1074 Make that possible even when linking against static libraries!
1077 *) Support for single pass processing for S/MIME signing. This now
1078 means that S/MIME signing can be done from a pipe, in addition
1079 cleartext signing (multipart/signed type) is effectively streaming
1080 and the signed data does not need to be all held in memory.
1082 This is done with a new flag PKCS7_STREAM. When this flag is set
1083 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1084 is done after the data is output (and digests calculated) in
1085 SMIME_write_PKCS7().
1088 *) Add full support for -rpath/-R, both in shared libraries and
1089 applications, at least on the platforms where it's known how
1093 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1094 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1095 will now compute a table of multiples of the generator that
1096 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1097 faster (notably in the case of a single point multiplication,
1098 scalar * generator).
1099 [Nils Larsch, Bodo Moeller]
1101 *) IPv6 support for certificate extensions. The various extensions
1102 which use the IP:a.b.c.d can now take IPv6 addresses using the
1103 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1107 *) Added an ENGINE that implements RSA by performing private key
1108 exponentiations with the GMP library. The conversions to and from
1109 GMP's mpz_t format aren't optimised nor are any montgomery forms
1110 cached, and on x86 it appears OpenSSL's own performance has caught up.
1111 However there are likely to be other architectures where GMP could
1112 provide a boost. This ENGINE is not built in by default, but it can be
1113 specified at Configure time and should be accompanied by the necessary
1114 linker additions, eg;
1115 ./config -DOPENSSL_USE_GMP -lgmp
1118 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1119 testing availability of engines with "-t" - the old behaviour is
1120 produced by increasing the feature's verbosity with "-tt".
1123 *) ECDSA routines: under certain error conditions uninitialized BN objects
1124 could be freed. Solution: make sure initialization is performed early
1125 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1129 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1130 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1131 software implementations. For DSA and DH, parameter generation can
1132 also be overriden by providing the appropriate method callbacks.
1135 *) Change the "progress" mechanism used in key-generation and
1136 primality testing to functions that take a new BN_GENCB pointer in
1137 place of callback/argument pairs. The new API functions have "_ex"
1138 postfixes and the older functions are reimplemented as wrappers for
1139 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1140 declarations of the old functions to help (graceful) attempts to
1141 migrate to the new functions. Also, the new key-generation API
1142 functions operate on a caller-supplied key-structure and return
1143 success/failure rather than returning a key or NULL - this is to
1144 help make "keygen" another member function of RSA_METHOD etc.
1146 Example for using the new callback interface:
1148 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1152 BN_GENCB_set(&my_cb, my_callback, my_arg);
1154 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1155 /* For the meaning of a, b in calls to my_callback(), see the
1156 * documentation of the function that calls the callback.
1157 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1158 * my_callback should return 1 if it wants BN_is_prime_ex()
1159 * to continue, or 0 to stop.
1164 *) Change the ZLIB compression method to be stateful, and make it
1165 available to TLS with the number defined in
1166 draft-ietf-tls-compression-04.txt.
1169 *) Add the ASN.1 structures and functions for CertificatePair, which
1170 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1172 CertificatePair ::= SEQUENCE {
1173 forward [0] Certificate OPTIONAL,
1174 reverse [1] Certificate OPTIONAL,
1175 -- at least one of the pair shall be present -- }
1177 Also implement the PEM functions to read and write certificate
1178 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1180 This needed to be defined, mostly for the sake of the LDAP
1181 attribute crossCertificatePair, but may prove useful elsewhere as
1185 *) Make it possible to inhibit symlinking of shared libraries in
1186 Makefile.shared, for Cygwin's sake.
1189 *) Extend the BIGNUM API by creating a function
1190 void BN_set_negative(BIGNUM *a, int neg);
1191 and a macro that behave like
1192 int BN_is_negative(const BIGNUM *a);
1194 to avoid the need to access 'a->neg' directly in applications.
1197 *) Implement fast modular reduction for pseudo-Mersenne primes
1198 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1199 EC_GROUP_new_curve_GFp() will now automatically use this
1201 [Nils Larsch <nla@trustcenter.de>]
1203 *) Add new lock type (CRYPTO_LOCK_BN).
1206 *) Change the ENGINE framework to automatically load engines
1207 dynamically from specific directories unless they could be
1208 found to already be built in or loaded. Move all the
1209 current engines except for the cryptodev one to a new
1211 The engines in engines/ are built as shared libraries if
1212 the "shared" options was given to ./Configure or ./config.
1213 Otherwise, they are inserted in libcrypto.a.
1214 /usr/local/ssl/engines is the default directory for dynamic
1215 engines, but that can be overriden at configure time through
1216 the usual use of --prefix and/or --openssldir, and at run
1217 time with the environment variable OPENSSL_ENGINES.
1218 [Geoff Thorpe and Richard Levitte]
1220 *) Add Makefile.shared, a helper makefile to build shared
1221 libraries. Addapt Makefile.org.
1224 *) Add version info to Win32 DLLs.
1225 [Peter 'Luna' Runestig" <peter@runestig.com>]
1227 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1228 can be added using this API to created arbitrary PKCS#12
1229 files while avoiding the low level API.
1231 New options to PKCS12_create(), key or cert can be NULL and
1232 will then be omitted from the output file. The encryption
1233 algorithm NIDs can be set to -1 for no encryption, the mac
1234 iteration count can be set to 0 to omit the mac.
1236 Enhance pkcs12 utility by making the -nokeys and -nocerts
1237 options work when creating a PKCS#12 file. New option -nomac
1238 to omit the mac, NONE can be set for an encryption algorithm.
1239 New code is modified to use the enhanced PKCS12_create()
1240 instead of the low level API.
1243 *) Extend ASN1 encoder to support indefinite length constructed
1244 encoding. This can output sequences tags and octet strings in
1245 this form. Modify pk7_asn1.c to support indefinite length
1246 encoding. This is experimental and needs additional code to
1247 be useful, such as an ASN1 bio and some enhanced streaming
1250 Extend template encode functionality so that tagging is passed
1251 down to the template encoder.
1254 *) Let 'openssl req' fail if an argument to '-newkey' is not
1255 recognized instead of using RSA as a default.
1258 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1259 As these are not official, they are not included in "ALL";
1260 the "ECCdraft" ciphersuite group alias can be used to select them.
1261 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1263 *) Add ECDH engine support.
1264 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1266 *) Add ECDH in new directory crypto/ecdh/.
1267 [Douglas Stebila (Sun Microsystems Laboratories)]
1269 *) Let BN_rand_range() abort with an error after 100 iterations
1270 without success (which indicates a broken PRNG).
1273 *) Change BN_mod_sqrt() so that it verifies that the input value
1274 is really the square of the return value. (Previously,
1275 BN_mod_sqrt would show GIGO behaviour.)
1278 *) Add named elliptic curves over binary fields from X9.62, SECG,
1279 and WAP/WTLS; add OIDs that were still missing.
1281 [Sheueling Chang Shantz and Douglas Stebila
1282 (Sun Microsystems Laboratories)]
1284 *) Extend the EC library for elliptic curves over binary fields
1285 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1288 EC_GF2m_simple_method
1292 EC_GROUP_new_curve_GF2m
1293 EC_GROUP_set_curve_GF2m
1294 EC_GROUP_get_curve_GF2m
1295 EC_POINT_set_affine_coordinates_GF2m
1296 EC_POINT_get_affine_coordinates_GF2m
1297 EC_POINT_set_compressed_coordinates_GF2m
1299 Point compression for binary fields is disabled by default for
1300 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1303 As binary polynomials are represented as BIGNUMs, various members
1304 of the EC_GROUP and EC_POINT data structures can be shared
1305 between the implementations for prime fields and binary fields;
1306 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1307 are essentially identical to their ..._GFp counterparts.
1308 (For simplicity, the '..._GFp' prefix has been dropped from
1309 various internal method names.)
1311 An internal 'field_div' method (similar to 'field_mul' and
1312 'field_sqr') has been added; this is used only for binary fields.
1314 [Sheueling Chang Shantz and Douglas Stebila
1315 (Sun Microsystems Laboratories)]
1317 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1318 through methods ('mul', 'precompute_mult').
1320 The generic implementations (now internally called 'ec_wNAF_mul'
1321 and 'ec_wNAF_precomputed_mult') remain the default if these
1322 methods are undefined.
1324 [Sheueling Chang Shantz and Douglas Stebila
1325 (Sun Microsystems Laboratories)]
1327 *) New function EC_GROUP_get_degree, which is defined through
1328 EC_METHOD. For curves over prime fields, this returns the bit
1329 length of the modulus.
1331 [Sheueling Chang Shantz and Douglas Stebila
1332 (Sun Microsystems Laboratories)]
1334 *) New functions EC_GROUP_dup, EC_POINT_dup.
1335 (These simply call ..._new and ..._copy).
1337 [Sheueling Chang Shantz and Douglas Stebila
1338 (Sun Microsystems Laboratories)]
1340 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1341 Polynomials are represented as BIGNUMs (where the sign bit is not
1342 used) in the following functions [macros]:
1345 BN_GF2m_sub [= BN_GF2m_add]
1346 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1347 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1348 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1350 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1351 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1352 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1353 BN_GF2m_cmp [= BN_ucmp]
1355 (Note that only the 'mod' functions are actually for fields GF(2^m).
1356 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1358 For some functions, an the irreducible polynomial defining a
1359 field can be given as an 'unsigned int[]' with strictly
1360 decreasing elements giving the indices of those bits that are set;
1361 i.e., p[] represents the polynomial
1362 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1364 p[0] > p[1] > ... > p[k] = 0.
1365 This applies to the following functions:
1370 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1371 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1373 BN_GF2m_mod_sqrt_arr
1374 BN_GF2m_mod_solve_quad_arr
1378 Conversion can be performed by the following functions:
1383 bntest.c has additional tests for binary polynomial arithmetic.
1385 Two implementations for BN_GF2m_mod_div() are available.
1386 The default algorithm simply uses BN_GF2m_mod_inv() and
1387 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1388 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1389 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1391 [Sheueling Chang Shantz and Douglas Stebila
1392 (Sun Microsystems Laboratories)]
1394 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1395 functionality is disabled at compile-time.
1396 [Douglas Stebila <douglas.stebila@sun.com>]
1398 *) Change default behaviour of 'openssl asn1parse' so that more
1399 information is visible when viewing, e.g., a certificate:
1401 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1402 mode the content of non-printable OCTET STRINGs is output in a
1403 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1404 avoid the appearance of a printable string.
1405 [Nils Larsch <nla@trustcenter.de>]
1407 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1409 EC_GROUP_set_asn1_flag()
1410 EC_GROUP_get_asn1_flag()
1411 EC_GROUP_set_point_conversion_form()
1412 EC_GROUP_get_point_conversion_form()
1413 These control ASN1 encoding details:
1414 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1415 has been set to OPENSSL_EC_NAMED_CURVE.
1416 - Points are encoded in uncompressed form by default; options for
1417 asn1_for are as for point2oct, namely
1418 POINT_CONVERSION_COMPRESSED
1419 POINT_CONVERSION_UNCOMPRESSED
1420 POINT_CONVERSION_HYBRID
1422 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1425 EC_GROUP_get0_seed()
1426 EC_GROUP_get_seed_len()
1427 This is used only for ASN1 purposes (so far).
1428 [Nils Larsch <nla@trustcenter.de>]
1430 *) Add 'field_type' member to EC_METHOD, which holds the NID
1431 of the appropriate field type OID. The new function
1432 EC_METHOD_get_field_type() returns this value.
1433 [Nils Larsch <nla@trustcenter.de>]
1438 EC_POINT_point2hex()
1439 EC_POINT_hex2point()
1440 providing useful interfaces to EC_POINT_point2oct() and
1441 EC_POINT_oct2point().
1442 [Nils Larsch <nla@trustcenter.de>]
1444 *) Change internals of the EC library so that the functions
1445 EC_GROUP_set_generator()
1446 EC_GROUP_get_generator()
1447 EC_GROUP_get_order()
1448 EC_GROUP_get_cofactor()
1449 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1450 to methods, which would lead to unnecessary code duplication when
1451 adding different types of curves.
1452 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1454 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1455 arithmetic, and such that modified wNAFs are generated
1456 (which avoid length expansion in many cases).
1459 *) Add a function EC_GROUP_check_discriminant() (defined via
1460 EC_METHOD) that verifies that the curve discriminant is non-zero.
1462 Add a function EC_GROUP_check() that makes some sanity tests
1463 on a EC_GROUP, its generator and order. This includes
1464 EC_GROUP_check_discriminant().
1465 [Nils Larsch <nla@trustcenter.de>]
1467 *) Add ECDSA in new directory crypto/ecdsa/.
1469 Add applications 'openssl ecparam' and 'openssl ecdsa'
1470 (these are based on 'openssl dsaparam' and 'openssl dsa').
1472 ECDSA support is also included in various other files across the
1473 library. Most notably,
1474 - 'openssl req' now has a '-newkey ecdsa:file' option;
1475 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1476 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1477 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1478 them suitable for ECDSA where domain parameters must be
1479 extracted before the specific public key;
1480 - ECDSA engine support has been added.
1481 [Nils Larsch <nla@trustcenter.de>]
1483 *) Include some named elliptic curves, and add OIDs from X9.62,
1484 SECG, and WAP/WTLS. Each curve can be obtained from the new
1486 EC_GROUP_new_by_curve_name(),
1487 and the list of available named curves can be obtained with
1488 EC_get_builtin_curves().
1489 Also add a 'curve_name' member to EC_GROUP objects, which can be
1491 EC_GROUP_set_curve_name()
1492 EC_GROUP_get_curve_name()
1493 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1495 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1496 was actually never needed) and in BN_mul(). The removal in BN_mul()
1497 required a small change in bn_mul_part_recursive() and the addition
1498 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1499 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1500 bn_sub_words() and bn_add_words() except they take arrays with
1504 Changes between 0.9.7l and 0.9.7m [xx XXX xxxx]
1506 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1507 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1508 authentication-only ciphersuites.
1511 *) Since AES128 and AES256 share a single mask bit in the logic of
1512 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1513 kludge to work properly if AES128 is available and AES256 isn't.
1516 *) Have SSL/TLS server implementation tolerate "mismatched" record
1517 protocol version while receiving ClientHello even if the
1518 ClientHello is fragmented. (The server can't insist on the
1519 particular protocol version it has chosen before the ServerHello
1520 message has informed the client about his choice.)
1523 *) Load error codes if they are not already present instead of using a
1524 static variable. This allows them to be cleanly unloaded and reloaded.
1527 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1529 *) Introduce limits to prevent malicious keys being able to
1530 cause a denial of service. (CVE-2006-2940)
1531 [Steve Henson, Bodo Moeller]
1533 *) Fix ASN.1 parsing of certain invalid structures that can result
1534 in a denial of service. (CVE-2006-2937) [Steve Henson]
1536 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1537 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1539 *) Fix SSL client code which could crash if connecting to a
1540 malicious SSLv2 server. (CVE-2006-4343)
1541 [Tavis Ormandy and Will Drewry, Google Security Team]
1543 *) Change ciphersuite string processing so that an explicit
1544 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1545 will no longer include "AES128-SHA"), and any other similar
1546 ciphersuite (same bitmap) from *other* protocol versions (so that
1547 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1548 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1549 changes from 0.9.8b and 0.9.8d.
1552 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1554 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1555 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1557 *) Change the Unix randomness entropy gathering to use poll() when
1558 possible instead of select(), since the latter has some
1559 undesirable limitations.
1560 [Darryl Miles via Richard Levitte and Bodo Moeller]
1562 *) Disable rogue ciphersuites:
1564 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1565 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1566 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1568 The latter two were purportedly from
1569 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1572 Also deactive the remaining ciphersuites from
1573 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1574 unofficial, and the ID has long expired.
1577 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1578 dual-core machines) and other potential thread-safety issues.
1581 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1583 *) Adapt fipsld and the build system to link against the validated FIPS
1584 module in FIPS mode.
1587 *) Fixes for VC++ 2005 build under Windows.
1590 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1591 from a Windows bash shell such as MSYS. It is autodetected from the
1592 "config" script when run from a VC++ environment. Modify standard VC++
1593 build to use fipscanister.o from the GNU make build.
1596 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1598 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1599 The value now differs depending on if you build for FIPS or not.
1600 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1601 safely run with a non-FIPSed libcrypto, as it may crash because of
1602 the difference induced by this change.
1605 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1607 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1608 (part of SSL_OP_ALL). This option used to disable the
1609 countermeasure against man-in-the-middle protocol-version
1610 rollback in the SSL 2.0 server implementation, which is a bad
1611 idea. (CVE-2005-2969)
1613 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1614 for Information Security, National Institute of Advanced Industrial
1615 Science and Technology [AIST], Japan)]
1617 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1618 mainly for FIPS compliance and not fully integrated at this stage.
1621 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1622 the exponentiation using a fixed-length exponent. (Otherwise,
1623 the information leaked through timing could expose the secret key
1624 after many signatures; cf. Bleichenbacher's attack on DSA with
1628 *) Make a new fixed-window mod_exp implementation the default for
1629 RSA, DSA, and DH private-key operations so that the sequence of
1630 squares and multiplies and the memory access pattern are
1631 independent of the particular secret key. This will mitigate
1632 cache-timing and potential related attacks.
1634 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1635 and this is automatically used by BN_mod_exp_mont() if the new flag
1636 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1637 will use this BN flag for private exponents unless the flag
1638 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1639 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1641 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1643 *) Change the client implementation for SSLv23_method() and
1644 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1645 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1646 (Previously, the SSL 2.0 backwards compatible Client Hello
1647 message format would be used even with SSL_OP_NO_SSLv2.)
1650 *) Add support for smime-type MIME parameter in S/MIME messages which some
1654 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1655 a threadsafe manner. Modify rsa code to use new function and add calls
1656 to dsa and dh code (which had race conditions before).
1659 *) Include the fixed error library code in the C error file definitions
1660 instead of fixing them up at runtime. This keeps the error code
1661 structures constant.
1664 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1666 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1669 *) Fixes for newer kerberos headers. NB: the casts are needed because
1670 the 'length' field is signed on one version and unsigned on another
1671 with no (?) obvious way to tell the difference, without these VC++
1672 complains. Also the "definition" of FAR (blank) is no longer included
1673 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1674 some needed definitions.
1677 *) Undo Cygwin change.
1680 *) Added support for proxy certificates according to RFC 3820.
1681 Because they may be a security thread to unaware applications,
1682 they must be explicitely allowed in run-time. See
1683 docs/HOWTO/proxy_certificates.txt for further information.
1686 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1688 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1689 server and client random values. Previously
1690 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1691 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1693 This change has negligible security impact because:
1695 1. Server and client random values still have 24 bytes of pseudo random
1698 2. Server and client random values are sent in the clear in the initial
1701 3. The master secret is derived using the premaster secret (48 bytes in
1702 size for static RSA ciphersuites) as well as client server and random
1705 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1708 [Stephen Henson, reported by UK NISCC]
1710 *) Use Windows randomness collection on Cygwin.
1713 *) Fix hang in EGD/PRNGD query when communication socket is closed
1714 prematurely by EGD/PRNGD.
1715 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1717 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1720 *) Back-port of selected performance improvements from development
1721 branch, as well as improved support for PowerPC platforms.
1724 *) Add lots of checks for memory allocation failure, error codes to indicate
1725 failure and freeing up memory if a failure occurs.
1726 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1728 *) Add new -passin argument to dgst.
1731 *) Perform some character comparisons of different types in X509_NAME_cmp:
1732 this is needed for some certificates that reencode DNs into UTF8Strings
1733 (in violation of RFC3280) and can't or wont issue name rollover
1737 *) Make an explicit check during certificate validation to see that
1738 the CA setting in each certificate on the chain is correct. As a
1739 side effect always do the following basic checks on extensions,
1740 not just when there's an associated purpose to the check:
1742 - if there is an unhandled critical extension (unless the user
1743 has chosen to ignore this fault)
1744 - if the path length has been exceeded (if one is set at all)
1745 - that certain extensions fit the associated purpose (if one has
1749 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1751 *) Avoid a race condition when CRLs are checked in a multi threaded
1752 environment. This would happen due to the reordering of the revoked
1753 entries during signature checking and serial number lookup. Now the
1754 encoding is cached and the serial number sort performed under a lock.
1755 Add new STACK function sk_is_sorted().
1758 *) Add Delta CRL to the extension code.
1761 *) Various fixes to s3_pkt.c so alerts are sent properly.
1762 [David Holmes <d.holmes@f5.com>]
1764 *) Reduce the chances of duplicate issuer name and serial numbers (in
1765 violation of RFC3280) using the OpenSSL certificate creation utilities.
1766 This is done by creating a random 64 bit value for the initial serial
1767 number when a serial number file is created or when a self signed
1768 certificate is created using 'openssl req -x509'. The initial serial
1769 number file is created using 'openssl x509 -next_serial' in CA.pl
1770 rather than being initialized to 1.
1773 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1775 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1776 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1777 [Joe Orton, Steve Henson]
1779 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1781 [Joe Orton, Steve Henson]
1783 *) Make it possible to have multiple active certificates with the same
1784 subject in the CA index file. This is done only if the keyword
1785 'unique_subject' is set to 'no' in the main CA section (default
1786 if 'CA_default') of the configuration file. The value is saved
1787 with the database itself in a separate index attribute file,
1788 named like the index file with '.attr' appended to the name.
1791 *) X509 verify fixes. Disable broken certificate workarounds when
1792 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1793 keyUsage extension present. Don't accept CRLs with unhandled critical
1794 extensions: since verify currently doesn't process CRL extensions this
1795 rejects a CRL with *any* critical extensions. Add new verify error codes
1799 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1800 A clarification of RFC2560 will require the use of OCTET STRINGs and
1801 some implementations cannot handle the current raw format. Since OpenSSL
1802 copies and compares OCSP nonces as opaque blobs without any attempt at
1803 parsing them this should not create any compatibility issues.
1806 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1807 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1808 this HMAC (and other) operations are several times slower than OpenSSL
1812 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1813 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1815 *) Use the correct content when signing type "other".
1818 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1820 *) Fix various bugs revealed by running the NISCC test suite:
1822 Stop out of bounds reads in the ASN1 code when presented with
1823 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1825 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1827 If verify callback ignores invalid public key errors don't try to check
1828 certificate signature with the NULL public key.
1832 *) New -ignore_err option in ocsp application to stop the server
1833 exiting on the first error in a request.
1836 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1837 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1841 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1842 extra data after the compression methods not only for TLS 1.0
1843 but also for SSL 3.0 (as required by the specification).
1844 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1846 *) Change X509_certificate_type() to mark the key as exported/exportable
1847 when it's 512 *bits* long, not 512 bytes.
1850 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1851 blocks during encryption.
1854 *) Various fixes to base64 BIO and non blocking I/O. On write
1855 flushes were not handled properly if the BIO retried. On read
1856 data was not being buffered properly and had various logic bugs.
1857 This also affects blocking I/O when the data being decoded is a
1861 *) Various S/MIME bugfixes and compatibility changes:
1862 output correct application/pkcs7 MIME type if
1863 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1864 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1865 of files as .eml work). Correctly handle very long lines in MIME
1869 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1871 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1872 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1873 a protocol version number mismatch like a decryption error
1874 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1877 *) Turn on RSA blinding by default in the default implementation
1878 to avoid a timing attack. Applications that don't want it can call
1879 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1880 They would be ill-advised to do so in most cases.
1881 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1883 *) Change RSA blinding code so that it works when the PRNG is not
1884 seeded (in this case, the secret RSA exponent is abused as
1885 an unpredictable seed -- if it is not unpredictable, there
1886 is no point in blinding anyway). Make RSA blinding thread-safe
1887 by remembering the creator's thread ID in rsa->blinding and
1888 having all other threads use local one-time blinding factors
1889 (this requires more computation than sharing rsa->blinding, but
1890 avoids excessive locking; and if an RSA object is not shared
1891 between threads, blinding will still be very fast).
1894 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1895 ENGINE as defaults for all supported algorithms irrespective of
1896 the 'flags' parameter. 'flags' is now honoured, so applications
1897 should make sure they are passing it correctly.
1900 *) Target "mingw" now allows native Windows code to be generated in
1901 the Cygwin environment as well as with the MinGW compiler.
1904 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1906 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1907 via timing by performing a MAC computation even if incorrrect
1908 block cipher padding has been found. This is a countermeasure
1909 against active attacks where the attacker has to distinguish
1910 between bad padding and a MAC verification error. (CVE-2003-0078)
1912 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1913 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1914 Martin Vuagnoux (EPFL, Ilion)]
1916 *) Make the no-err option work as intended. The intention with no-err
1917 is not to have the whole error stack handling routines removed from
1918 libcrypto, it's only intended to remove all the function name and
1919 reason texts, thereby removing some of the footprint that may not
1920 be interesting if those errors aren't displayed anyway.
1922 NOTE: it's still possible for any application or module to have it's
1923 own set of error texts inserted. The routines are there, just not
1924 used by default when no-err is given.
1927 *) Add support for FreeBSD on IA64.
1928 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1930 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1931 Kerberos function mit_des_cbc_cksum(). Before this change,
1932 the value returned by DES_cbc_cksum() was like the one from
1933 mit_des_cbc_cksum(), except the bytes were swapped.
1934 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1936 *) Allow an application to disable the automatic SSL chain building.
1937 Before this a rather primitive chain build was always performed in
1938 ssl3_output_cert_chain(): an application had no way to send the
1939 correct chain if the automatic operation produced an incorrect result.
1941 Now the chain builder is disabled if either:
1943 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1945 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1947 The reasoning behind this is that an application would not want the
1948 auto chain building to take place if extra chain certificates are
1949 present and it might also want a means of sending no additional
1950 certificates (for example the chain has two certificates and the
1954 *) Add the possibility to build without the ENGINE framework.
1955 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1957 *) Under Win32 gmtime() can return NULL: check return value in
1958 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1961 *) DSA routines: under certain error conditions uninitialized BN objects
1962 could be freed. Solution: make sure initialization is performed early
1963 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1964 Nils Larsch <nla@trustcenter.de> via PR#459)
1967 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1968 checked on reconnect on the client side, therefore session resumption
1969 could still fail with a "ssl session id is different" error. This
1970 behaviour is masked when SSL_OP_ALL is used due to
1971 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1972 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1973 followup to PR #377.
1976 *) IA-32 assembler support enhancements: unified ELF targets, support
1977 for SCO/Caldera platforms, fix for Cygwin shared build.
1980 *) Add support for FreeBSD on sparc64. As a consequence, support for
1981 FreeBSD on non-x86 processors is separate from x86 processors on
1982 the config script, much like the NetBSD support.
1983 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1985 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1987 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1990 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1991 code (06) was taken as the first octet of the session ID and the last
1992 octet was ignored consequently. As a result SSLv2 client side session
1993 caching could not have worked due to the session ID mismatch between
1995 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1999 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2000 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2004 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2005 seems that in spite of existing for more than a year, many application
2006 author have done nothing to provide the necessary callbacks, which
2007 means that this particular engine will not work properly anywhere.
2008 This is a very unfortunate situation which forces us, in the name
2009 of usability, to give the hw_ncipher.c a static lock, which is part
2011 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2012 appear in 0.9.8 or later. We EXPECT application authors to have
2013 dealt properly with this when 0.9.8 is released (unless we actually
2014 make such changes in the libcrypto locking code that changes will
2015 have to be made anyway).
2018 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2019 octets have been read, EOF or an error occurs. Without this change
2020 some truncated ASN1 structures will not produce an error.
2023 *) Disable Heimdal support, since it hasn't been fully implemented.
2024 Still give the possibility to force the use of Heimdal, but with
2025 warnings and a request that patches get sent to openssl-dev.
2028 *) Add the VC-CE target, introduce the WINCE sysname, and add
2029 INSTALL.WCE and appropriate conditionals to make it build.
2030 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2032 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2033 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2034 edit numbers of the version.
2035 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2037 *) Introduce safe string copy and catenation functions
2038 (BUF_strlcpy() and BUF_strlcat()).
2039 [Ben Laurie (CHATS) and Richard Levitte]
2041 *) Avoid using fixed-size buffers for one-line DNs.
2042 [Ben Laurie (CHATS)]
2044 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2045 resizing buffers containing secrets, and use where appropriate.
2046 [Ben Laurie (CHATS)]
2048 *) Avoid using fixed size buffers for configuration file location.
2049 [Ben Laurie (CHATS)]
2051 *) Avoid filename truncation for various CA files.
2052 [Ben Laurie (CHATS)]
2054 *) Use sizeof in preference to magic numbers.
2055 [Ben Laurie (CHATS)]
2057 *) Avoid filename truncation in cert requests.
2058 [Ben Laurie (CHATS)]
2060 *) Add assertions to check for (supposedly impossible) buffer
2062 [Ben Laurie (CHATS)]
2064 *) Don't cache truncated DNS entries in the local cache (this could
2065 potentially lead to a spoofing attack).
2066 [Ben Laurie (CHATS)]
2068 *) Fix various buffers to be large enough for hex/decimal
2069 representations in a platform independent manner.
2070 [Ben Laurie (CHATS)]
2072 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2073 resizing buffers containing secrets, and use where appropriate.
2074 [Ben Laurie (CHATS)]
2076 *) Add BIO_indent() to avoid much slightly worrying code to do
2078 [Ben Laurie (CHATS)]
2080 *) Convert sprintf()/BIO_puts() to BIO_printf().
2081 [Ben Laurie (CHATS)]
2083 *) buffer_gets() could terminate with the buffer only half
2085 [Ben Laurie (CHATS)]
2087 *) Add assertions to prevent user-supplied crypto functions from
2088 overflowing internal buffers by having large block sizes, etc.
2089 [Ben Laurie (CHATS)]
2091 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2093 [Ben Laurie (CHATS)]
2095 *) Eliminate unused copy of key in RC4.
2096 [Ben Laurie (CHATS)]
2098 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2099 [Ben Laurie (CHATS)]
2101 *) Fix off-by-one error in EGD path.
2102 [Ben Laurie (CHATS)]
2104 *) If RANDFILE path is too long, ignore instead of truncating.
2105 [Ben Laurie (CHATS)]
2107 *) Eliminate unused and incorrectly sized X.509 structure
2109 [Ben Laurie (CHATS)]
2111 *) Eliminate unused and dangerous function knumber().
2112 [Ben Laurie (CHATS)]
2114 *) Eliminate unused and dangerous structure, KSSL_ERR.
2115 [Ben Laurie (CHATS)]
2117 *) Protect against overlong session ID context length in an encoded
2118 session object. Since these are local, this does not appear to be
2120 [Ben Laurie (CHATS)]
2122 *) Change from security patch (see 0.9.6e below) that did not affect
2123 the 0.9.6 release series:
2125 Remote buffer overflow in SSL3 protocol - an attacker could
2126 supply an oversized master key in Kerberos-enabled versions.
2128 [Ben Laurie (CHATS)]
2130 *) Change the SSL kerb5 codes to match RFC 2712.
2133 *) Make -nameopt work fully for req and add -reqopt switch.
2134 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2136 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2137 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2139 *) Make sure tests can be performed even if the corresponding algorithms
2140 have been removed entirely. This was also the last step to make
2141 OpenSSL compilable with DJGPP under all reasonable conditions.
2142 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2144 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2145 to allow version independent disabling of normally unselected ciphers,
2146 which may be activated as a side-effect of selecting a single cipher.
2148 (E.g., cipher list string "RSA" enables ciphersuites that are left
2149 out of "ALL" because they do not provide symmetric encryption.
2150 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2151 [Lutz Jaenicke, Bodo Moeller]
2153 *) Add appropriate support for separate platform-dependent build
2154 directories. The recommended way to make a platform-dependent
2155 build directory is the following (tested on Linux), maybe with
2158 # Place yourself outside of the OpenSSL source tree. In
2159 # this example, the environment variable OPENSSL_SOURCE
2160 # is assumed to contain the absolute OpenSSL source directory.
2161 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2162 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2163 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2164 mkdir -p `dirname $F`
2165 ln -s $OPENSSL_SOURCE/$F $F
2168 To be absolutely sure not to disturb the source tree, a "make clean"
2169 is a good thing. If it isn't successfull, don't worry about it,
2170 it probably means the source directory is very clean.
2173 *) Make sure any ENGINE control commands make local copies of string
2174 pointers passed to them whenever necessary. Otherwise it is possible
2175 the caller may have overwritten (or deallocated) the original string
2176 data when a later ENGINE operation tries to use the stored values.
2177 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2179 *) Improve diagnostics in file reading and command-line digests.
2180 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2182 *) Add AES modes CFB and OFB to the object database. Correct an
2183 error in AES-CFB decryption.
2186 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2187 allows existing EVP_CIPHER_CTX structures to be reused after
2188 calling EVP_*Final(). This behaviour is used by encryption
2189 BIOs and some applications. This has the side effect that
2190 applications must explicitly clean up cipher contexts with
2191 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2194 *) Check the values of dna and dnb in bn_mul_recursive before calling
2195 bn_mul_comba (a non zero value means the a or b arrays do not contain
2196 n2 elements) and fallback to bn_mul_normal if either is not zero.
2199 *) Fix escaping of non-ASCII characters when using the -subj option
2200 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2203 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2204 form for "surname", serialNumber has no short form.
2205 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2206 therefore remove "mail" short name for "internet 7".
2207 The OID for unique identifiers in X509 certificates is
2208 x500UniqueIdentifier, not uniqueIdentifier.
2209 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2212 *) Add an "init" command to the ENGINE config module and auto initialize
2213 ENGINEs. Without any "init" command the ENGINE will be initialized
2214 after all ctrl commands have been executed on it. If init=1 the
2215 ENGINE is initailized at that point (ctrls before that point are run
2216 on the uninitialized ENGINE and after on the initialized one). If
2217 init=0 then the ENGINE will not be iniatialized at all.
2220 *) Fix the 'app_verify_callback' interface so that the user-defined
2221 argument is actually passed to the callback: In the
2222 SSL_CTX_set_cert_verify_callback() prototype, the callback
2223 declaration has been changed from
2226 int (*cb)(X509_STORE_CTX *,void *);
2227 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2228 i=s->ctx->app_verify_callback(&ctx)
2229 has been changed into
2230 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2232 To update applications using SSL_CTX_set_cert_verify_callback(),
2233 a dummy argument can be added to their callback functions.
2234 [D. K. Smetters <smetters@parc.xerox.com>]
2236 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2237 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2239 *) Add and OPENSSL_LOAD_CONF define which will cause
2240 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2241 This allows older applications to transparently support certain
2242 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2243 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2244 load the config file and OPENSSL_add_all_algorithms_conf() which will
2245 always load it have also been added.
2248 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2249 Adjust NIDs and EVP layer.
2250 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2252 *) Config modules support in openssl utility.
2254 Most commands now load modules from the config file,
2255 though in a few (such as version) this isn't done
2256 because it couldn't be used for anything.
2258 In the case of ca and req the config file used is
2259 the same as the utility itself: that is the -config
2260 command line option can be used to specify an
2264 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2265 use "openssl_conf" if filename is NULL use default openssl config file.
2268 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2269 config section name. Add a new flag to tolerate a missing config file
2270 and move code to CONF_modules_load_file().
2273 *) Support for crypto accelerator cards from Accelerated Encryption
2274 Processing, www.aep.ie. (Use engine 'aep')
2275 The support was copied from 0.9.6c [engine] and adapted/corrected
2276 to work with the new engine framework.
2277 [AEP Inc. and Richard Levitte]
2279 *) Support for SureWare crypto accelerator cards from Baltimore
2280 Technologies. (Use engine 'sureware')
2281 The support was copied from 0.9.6c [engine] and adapted
2282 to work with the new engine framework.
2285 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2286 make the newer ENGINE framework commands for the CHIL engine work.
2287 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2289 *) Make it possible to produce shared libraries on ReliantUNIX.
2290 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2292 *) Add the configuration target debug-linux-ppro.
2293 Make 'openssl rsa' use the general key loading routines
2294 implemented in apps.c, and make those routines able to
2295 handle the key format FORMAT_NETSCAPE and the variant
2297 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2299 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2300 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2302 *) Add -keyform to rsautl, and document -engine.
2303 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2305 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2306 BIO_R_NO_SUCH_FILE error code rather than the generic
2307 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2310 *) Add new functions
2312 ERR_peek_last_error_line
2313 ERR_peek_last_error_line_data.
2314 These are similar to
2317 ERR_peek_error_line_data,
2318 but report on the latest error recorded rather than the first one
2319 still in the error queue.
2320 [Ben Laurie, Bodo Moeller]
2322 *) default_algorithms option in ENGINE config module. This allows things
2324 default_algorithms = ALL
2325 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2328 *) Prelminary ENGINE config module.
2331 *) New experimental application configuration code.
2334 *) Change the AES code to follow the same name structure as all other
2335 symmetric ciphers, and behave the same way. Move everything to
2336 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2337 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2339 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2340 [Ben Laurie and Theo de Raadt]
2342 *) Add option to output public keys in req command.
2343 [Massimiliano Pala madwolf@openca.org]
2345 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2346 (up to about 10% better than before for P-192 and P-224).
2349 *) New functions/macros
2351 SSL_CTX_set_msg_callback(ctx, cb)
2352 SSL_CTX_set_msg_callback_arg(ctx, arg)
2353 SSL_set_msg_callback(ssl, cb)
2354 SSL_set_msg_callback_arg(ssl, arg)
2356 to request calling a callback function
2358 void cb(int write_p, int version, int content_type,
2359 const void *buf, size_t len, SSL *ssl, void *arg)
2361 whenever a protocol message has been completely received
2362 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2363 protocol version according to which the SSL library interprets
2364 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2365 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2366 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2367 specification (change_cipher_spec(20), alert(21), handshake(22)).
2368 'buf' and 'len' point to the actual message, 'ssl' to the
2369 SSL object, and 'arg' is the application-defined value set by
2370 SSL[_CTX]_set_msg_callback_arg().
2372 'openssl s_client' and 'openssl s_server' have new '-msg' options
2373 to enable a callback that displays all protocol messages.
2376 *) Change the shared library support so shared libraries are built as
2377 soon as the corresponding static library is finished, and thereby get
2378 openssl and the test programs linked against the shared library.
2379 This still only happens when the keyword "shard" has been given to
2380 the configuration scripts.
2382 NOTE: shared library support is still an experimental thing, and
2383 backward binary compatibility is still not guaranteed.
2384 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2386 *) Add support for Subject Information Access extension.
2387 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2389 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2390 additional bytes when new memory had to be allocated, not just
2391 when reusing an existing buffer.
2394 *) New command line and configuration option 'utf8' for the req command.
2395 This allows field values to be specified as UTF8 strings.
2398 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2399 runs for the former and machine-readable output for the latter.
2402 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2403 of the e-mail address in the DN (i.e., it will go into a certificate
2404 extension only). The new configuration file option 'email_in_dn = no'
2405 has the same effect.
2406 [Massimiliano Pala madwolf@openca.org]
2408 *) Change all functions with names starting with des_ to be starting
2409 with DES_ instead. Add wrappers that are compatible with libdes,
2410 but are named _ossl_old_des_*. Finally, add macros that map the
2411 des_* symbols to the corresponding _ossl_old_des_* if libdes
2412 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2413 desired, the des_* symbols will be mapped to DES_*, with one
2416 Since we provide two compatibility mappings, the user needs to
2417 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2418 compatibility is desired. The default (i.e., when that macro
2419 isn't defined) is OpenSSL 0.9.6c compatibility.
2421 There are also macros that enable and disable the support of old
2422 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2423 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2424 are defined, the default will apply: to support the old des routines.
2426 In either case, one must include openssl/des.h to get the correct
2427 definitions. Do not try to just include openssl/des_old.h, that
2430 NOTE: This is a major break of an old API into a new one. Software
2431 authors are encouraged to switch to the DES_ style functions. Some
2432 time in the future, des_old.h and the libdes compatibility functions
2433 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2434 default), and then completely removed.
2437 *) Test for certificates which contain unsupported critical extensions.
2438 If such a certificate is found during a verify operation it is
2439 rejected by default: this behaviour can be overridden by either
2440 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2441 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2442 X509_supported_extension() has also been added which returns 1 if a
2443 particular extension is supported.
2446 *) Modify the behaviour of EVP cipher functions in similar way to digests
2447 to retain compatibility with existing code.
2450 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2451 compatibility with existing code. In particular the 'ctx' parameter does
2452 not have to be to be initialized before the call to EVP_DigestInit() and
2453 it is tidied up after a call to EVP_DigestFinal(). New function
2454 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2455 EVP_MD_CTX_copy() changed to not require the destination to be
2456 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2457 requires the destination to be valid.
2459 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2460 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2463 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2464 so that complete 'Handshake' protocol structures are kept in memory
2465 instead of overwriting 'msg_type' and 'length' with 'body' data.
2468 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2469 [Massimo Santin via Richard Levitte]
2471 *) Major restructuring to the underlying ENGINE code. This includes
2472 reduction of linker bloat, separation of pure "ENGINE" manipulation
2473 (initialisation, etc) from functionality dealing with implementations
2474 of specific crypto iterfaces. This change also introduces integrated
2475 support for symmetric ciphers and digest implementations - so ENGINEs
2476 can now accelerate these by providing EVP_CIPHER and EVP_MD
2477 implementations of their own. This is detailed in crypto/engine/README
2478 as it couldn't be adequately described here. However, there are a few
2479 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2480 were changed in the original introduction of ENGINE code have now
2481 reverted back - the hooking from this code to ENGINE is now a good
2482 deal more passive and at run-time, operations deal directly with
2483 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2484 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2485 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2486 they were not being used by the framework as there is no concept of a
2487 BIGNUM_METHOD and they could not be generalised to the new
2488 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2489 ENGINE_cpy() has been removed as it cannot be consistently defined in
2493 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2496 *) Change mkdef.pl to sort symbols that get the same entry number,
2497 and make sure the automatically generated functions ERR_load_*
2498 become part of libeay.num as well.
2501 *) New function SSL_renegotiate_pending(). This returns true once
2502 renegotiation has been requested (either SSL_renegotiate() call
2503 or HelloRequest/ClientHello receveived from the peer) and becomes
2504 false once a handshake has been completed.
2505 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2506 sends a HelloRequest, but does not ensure that a handshake takes
2507 place. SSL_renegotiate_pending() is useful for checking if the
2508 client has followed the request.)
2511 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2512 By default, clients may request session resumption even during
2513 renegotiation (if session ID contexts permit); with this option,
2514 session resumption is possible only in the first handshake.
2516 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2517 more bits available for options that should not be part of
2518 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2521 *) Add some demos for certificate and certificate request creation.
2524 *) Make maximum certificate chain size accepted from the peer application
2525 settable (SSL*_get/set_max_cert_list()), as proposed by
2526 "Douglas E. Engert" <deengert@anl.gov>.
2529 *) Add support for shared libraries for Unixware-7
2530 (Boyd Lynn Gerber <gerberb@zenez.com>).
2533 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2534 be done prior to destruction. Use this to unload error strings from
2535 ENGINEs that load their own error strings. NB: This adds two new API
2536 functions to "get" and "set" this destroy handler in an ENGINE.
2539 *) Alter all existing ENGINE implementations (except "openssl" and
2540 "openbsd") to dynamically instantiate their own error strings. This
2541 makes them more flexible to be built both as statically-linked ENGINEs
2542 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2543 Also, add stub code to each that makes building them as self-contained
2544 shared-libraries easier (see README.ENGINE).
2547 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2548 implementations into applications that are completely implemented in
2549 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2550 commands that can be used to configure what shared-library to load and
2551 to control aspects of the way it is handled. Also, made an update to
2552 the README.ENGINE file that brings its information up-to-date and
2553 provides some information and instructions on the "dynamic" ENGINE
2554 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2557 *) Make it possible to unload ranges of ERR strings with a new
2558 "ERR_unload_strings" function.
2561 *) Add a copy() function to EVP_MD.
2564 *) Make EVP_MD routines take a context pointer instead of just the
2565 md_data void pointer.
2568 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2569 that the digest can only process a single chunk of data
2570 (typically because it is provided by a piece of
2571 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2572 is only going to provide a single chunk of data, and hence the
2573 framework needn't accumulate the data for oneshot drivers.
2576 *) As with "ERR", make it possible to replace the underlying "ex_data"
2577 functions. This change also alters the storage and management of global
2578 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2579 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2580 index counters. The API functions that use this state have been changed
2581 to take a "class_index" rather than pointers to the class's local STACK
2582 and counter, and there is now an API function to dynamically create new
2583 classes. This centralisation allows us to (a) plug a lot of the
2584 thread-safety problems that existed, and (b) makes it possible to clean
2585 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2586 such data would previously have always leaked in application code and
2587 workarounds were in place to make the memory debugging turn a blind eye
2588 to it. Application code that doesn't use this new function will still
2589 leak as before, but their memory debugging output will announce it now
2590 rather than letting it slide.
2592 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2593 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2594 has a return value to indicate success or failure.
2597 *) Make it possible to replace the underlying "ERR" functions such that the
2598 global state (2 LHASH tables and 2 locks) is only used by the "default"
2599 implementation. This change also adds two functions to "get" and "set"
2600 the implementation prior to it being automatically set the first time
2601 any other ERR function takes place. Ie. an application can call "get",
2602 pass the return value to a module it has just loaded, and that module
2603 can call its own "set" function using that value. This means the
2604 module's "ERR" operations will use (and modify) the error state in the
2605 application and not in its own statically linked copy of OpenSSL code.
2608 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2609 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2610 the operation, and provides a more encapsulated way for external code
2611 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2612 to use these functions rather than manually incrementing the counts.
2614 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2617 *) Add EVP test program.
2620 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2623 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2624 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2625 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2626 These allow a CRL to be built without having to access X509_CRL fields
2627 directly. Modify 'ca' application to use new functions.
2630 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2631 bug workarounds. Rollback attack detection is a security feature.
2632 The problem will only arise on OpenSSL servers when TLSv1 is not
2633 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2634 Software authors not wanting to support TLSv1 will have special reasons
2635 for their choice and can explicitly enable this option.
2636 [Bodo Moeller, Lutz Jaenicke]
2638 *) Rationalise EVP so it can be extended: don't include a union of
2639 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2640 (similar to those existing for EVP_CIPHER_CTX).
2645 EVP_MD_CTX_init(&md); /* new function call */
2646 EVP_DigestInit(&md, EVP_sha1());
2647 EVP_DigestUpdate(&md, in, len);
2648 EVP_DigestFinal(&md, out, NULL);
2649 EVP_MD_CTX_cleanup(&md); /* new function call */
2653 *) Make DES key schedule conform to the usual scheme, as well as
2654 correcting its structure. This means that calls to DES functions
2655 now have to pass a pointer to a des_key_schedule instead of a
2656 plain des_key_schedule (which was actually always a pointer
2659 des_key_schedule ks;
2661 des_set_key_checked(..., &ks);
2662 des_ncbc_encrypt(..., &ks, ...);
2664 (Note that a later change renames 'des_...' into 'DES_...'.)
2667 *) Initial reduction of linker bloat: the use of some functions, such as
2668 PEM causes large amounts of unused functions to be linked in due to
2669 poor organisation. For example pem_all.c contains every PEM function
2670 which has a knock on effect of linking in large amounts of (unused)
2671 ASN1 code. Grouping together similar functions and splitting unrelated
2672 functions prevents this.
2675 *) Cleanup of EVP macros.
2678 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2679 correct _ecb suffix.
2682 *) Add initial OCSP responder support to ocsp application. The
2683 revocation information is handled using the text based index
2684 use by the ca application. The responder can either handle
2685 requests generated internally, supplied in files (for example
2686 via a CGI script) or using an internal minimal server.
2689 *) Add configuration choices to get zlib compression for TLS.
2692 *) Changes to Kerberos SSL for RFC 2712 compliance:
2693 1. Implemented real KerberosWrapper, instead of just using
2694 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2695 2. Implemented optional authenticator field of KerberosWrapper.
2697 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2698 and authenticator structs; see crypto/krb5/.
2700 Generalized Kerberos calls to support multiple Kerberos libraries.
2701 [Vern Staats <staatsvr@asc.hpc.mil>,
2702 Jeffrey Altman <jaltman@columbia.edu>
2703 via Richard Levitte]
2705 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2706 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2707 values for each of the key sizes rather than having just
2708 parameters (and 'speed' generating keys each time).
2711 *) Speed up EVP routines.
2714 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2715 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2716 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2717 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2719 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2720 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2721 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2724 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2726 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2729 *) Added the OS2-EMX target.
2730 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2732 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2733 to support NCONF routines in extension code. New function CONF_set_nconf()
2734 to allow functions which take an NCONF to also handle the old LHASH
2735 structure: this means that the old CONF compatible routines can be
2736 retained (in particular wrt extensions) without having to duplicate the
2737 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2740 *) Enhance the general user interface with mechanisms for inner control
2741 and with possibilities to have yes/no kind of prompts.
2744 *) Change all calls to low level digest routines in the library and
2745 applications to use EVP. Add missing calls to HMAC_cleanup() and
2746 don't assume HMAC_CTX can be copied using memcpy().
2747 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2749 *) Add the possibility to control engines through control names but with
2750 arbitrary arguments instead of just a string.
2751 Change the key loaders to take a UI_METHOD instead of a callback
2752 function pointer. NOTE: this breaks binary compatibility with earlier
2753 versions of OpenSSL [engine].
2754 Adapt the nCipher code for these new conditions and add a card insertion
2758 *) Enhance the general user interface with mechanisms to better support
2759 dialog box interfaces, application-defined prompts, the possibility
2760 to use defaults (for example default passwords from somewhere else)
2761 and interrupts/cancellations.
2764 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2765 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2768 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2769 tidy up some unnecessarily weird code in 'sk_new()').
2770 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2772 *) Change the key loading routines for ENGINEs to use the same kind
2773 callback (pem_password_cb) as all other routines that need this
2777 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2778 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2779 than this minimum value is recommended.
2782 *) New random seeder for OpenVMS, using the system process statistics
2783 that are easily reachable.
2786 *) Windows apparently can't transparently handle global
2787 variables defined in DLLs. Initialisations such as:
2789 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2791 wont compile. This is used by the any applications that need to
2792 declare their own ASN1 modules. This was fixed by adding the option
2793 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2794 needed for static libraries under Win32.
2797 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2798 setting of purpose and trust fields. New X509_STORE trust and
2799 purpose functions and tidy up setting in other SSL functions.
2802 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2803 structure. These are inherited by X509_STORE_CTX when it is
2804 initialised. This allows various defaults to be set in the
2805 X509_STORE structure (such as flags for CRL checking and custom
2806 purpose or trust settings) for functions which only use X509_STORE_CTX
2807 internally such as S/MIME.
2809 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2810 trust settings if they are not set in X509_STORE. This allows X509_STORE
2811 purposes and trust (in S/MIME for example) to override any set by default.
2813 Add command line options for CRL checking to smime, s_client and s_server
2817 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2818 are set then the CRL is looked up in the X509_STORE structure and
2819 its validity and signature checked, then if the certificate is found
2820 in the CRL the verify fails with a revoked error.
2822 Various new CRL related callbacks added to X509_STORE_CTX structure.
2824 Command line options added to 'verify' application to support this.
2826 This needs some additional work, such as being able to handle multiple
2827 CRLs with different times, extension based lookup (rather than just
2828 by subject name) and ultimately more complete V2 CRL extension
2832 *) Add a general user interface API (crypto/ui/). This is designed
2833 to replace things like des_read_password and friends (backward
2834 compatibility functions using this new API are provided).
2835 The purpose is to remove prompting functions from the DES code
2836 section as well as provide for prompting through dialog boxes in
2837 a window system and the like.
2840 *) Add "ex_data" support to ENGINE so implementations can add state at a
2841 per-structure level rather than having to store it globally.
2844 *) Make it possible for ENGINE structures to be copied when retrieved by
2845 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2846 This causes the "original" ENGINE structure to act like a template,
2847 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2848 operational state can be localised to each ENGINE structure, despite the
2849 fact they all share the same "methods". New ENGINE structures returned in
2850 this case have no functional references and the return value is the single
2851 structural reference. This matches the single structural reference returned
2852 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2856 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2857 needs to match any other type at all we need to manually clear the
2861 *) Changes to the "openssl engine" utility to include;
2862 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2863 about an ENGINE's available control commands.
2864 - executing control commands from command line arguments using the
2865 '-pre' and '-post' switches. '-post' is only used if '-t' is
2866 specified and the ENGINE is successfully initialised. The syntax for
2867 the individual commands are colon-separated, for example;
2868 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2871 *) New dynamic control command support for ENGINEs. ENGINEs can now
2872 declare their own commands (numbers), names (strings), descriptions,
2873 and input types for run-time discovery by calling applications. A
2874 subset of these commands are implicitly classed as "executable"
2875 depending on their input type, and only these can be invoked through
2876 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2877 can be based on user input, config files, etc). The distinction is
2878 that "executable" commands cannot return anything other than a boolean
2879 result and can only support numeric or string input, whereas some
2880 discoverable commands may only be for direct use through
2881 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2882 pointers, or other custom uses. The "executable" commands are to
2883 support parameterisations of ENGINE behaviour that can be
2884 unambiguously defined by ENGINEs and used consistently across any
2885 OpenSSL-based application. Commands have been added to all the
2886 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2887 control over shared-library paths without source code alterations.
2890 *) Changed all ENGINE implementations to dynamically allocate their
2891 ENGINEs rather than declaring them statically. Apart from this being
2892 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2893 this also allows the implementations to compile without using the
2894 internal engine_int.h header.
2897 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2898 'const' value. Any code that should be able to modify a RAND_METHOD
2899 should already have non-const pointers to it (ie. they should only
2900 modify their own ones).
2903 *) Made a variety of little tweaks to the ENGINE code.
2904 - "atalla" and "ubsec" string definitions were moved from header files
2905 to C code. "nuron" string definitions were placed in variables
2906 rather than hard-coded - allowing parameterisation of these values
2907 later on via ctrl() commands.
2908 - Removed unused "#if 0"'d code.
2909 - Fixed engine list iteration code so it uses ENGINE_free() to release
2910 structural references.
2911 - Constified the RAND_METHOD element of ENGINE structures.
2912 - Constified various get/set functions as appropriate and added
2913 missing functions (including a catch-all ENGINE_cpy that duplicates
2914 all ENGINE values onto a new ENGINE except reference counts/state).
2915 - Removed NULL parameter checks in get/set functions. Setting a method
2916 or function to NULL is a way of cancelling out a previously set
2917 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2918 and doesn't justify the extra error symbols and code.
2919 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2920 flags from engine_int.h to engine.h.
2921 - Changed prototypes for ENGINE handler functions (init(), finish(),
2922 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2925 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2926 to the algorithm using long division. The binary algorithm can be
2927 used only if the modulus is odd. On 32-bit systems, it is faster
2928 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2929 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2930 up to 450 bits. In 64-bit environments, the binary algorithm
2931 appears to be advantageous for much longer moduli; here we use it
2932 for moduli up to 2048 bits.
2935 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2936 could not support the combine flag in choice fields.
2939 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2940 extensions from a certificate request to the certificate.
2943 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2944 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2945 file: this allows the display of the certificate about to be
2946 signed to be customised, to allow certain fields to be included
2947 or excluded and extension details. The old system didn't display
2948 multicharacter strings properly, omitted fields not in the policy
2949 and couldn't display additional details such as extensions.
2952 *) Function EC_POINTs_mul for multiple scalar multiplication
2953 of an arbitrary number of elliptic curve points
2954 \sum scalars[i]*points[i],
2955 optionally including the generator defined for the EC_GROUP:
2956 scalar*generator + \sum scalars[i]*points[i].
2958 EC_POINT_mul is a simple wrapper function for the typical case
2959 that the point list has just one item (besides the optional
2963 *) First EC_METHODs for curves over GF(p):
2965 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2966 operations and provides various method functions that can also
2967 operate with faster implementations of modular arithmetic.
2969 EC_GFp_mont_method() reuses most functions that are part of
2970 EC_GFp_simple_method, but uses Montgomery arithmetic.
2972 [Bodo Moeller; point addition and point doubling
2973 implementation directly derived from source code provided by
2974 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2976 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2977 crypto/ec/ec_lib.c):
2979 Curves are EC_GROUP objects (with an optional group generator)
2980 based on EC_METHODs that are built into the library.
2982 Points are EC_POINT objects based on EC_GROUP objects.
2984 Most of the framework would be able to handle curves over arbitrary
2985 finite fields, but as there are no obvious types for fields other
2986 than GF(p), some functions are limited to that for now.
2989 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2990 that the file contains a complete HTTP response.
2993 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2994 change the def and num file printf format specifier from "%-40sXXX"
2995 to "%-39s XXX". The latter will always guarantee a space after the
2996 field while the former will cause them to run together if the field
2997 is 40 of more characters long.
3000 *) Constify the cipher and digest 'method' functions and structures
3001 and modify related functions to take constant EVP_MD and EVP_CIPHER
3005 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3006 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3009 *) Modify EVP_Digest*() routines so they now return values. Although the
3010 internal software routines can never fail additional hardware versions
3014 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3016 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3017 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3020 ERR_R_NESTED_ASN1_ERROR
3022 ERR_R_MISSING_ASN1_EOS
3023 were 4 .. 9, conflicting with
3024 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3026 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3027 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3029 Add new error code 'ERR_R_INTERNAL_ERROR'.
3032 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3036 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3037 sets the subject name for a new request or supersedes the
3038 subject name in a given request. Formats that can be parsed are
3039 'CN=Some Name, OU=myOU, C=IT'
3041 'CN=Some Name/OU=myOU/C=IT'.
3043 Add options '-batch' and '-verbose' to 'openssl req'.
3044 [Massimiliano Pala <madwolf@hackmasters.net>]
3046 *) Introduce the possibility to access global variables through
3047 functions on platform were that's the best way to handle exporting
3048 global variables in shared libraries. To enable this functionality,
3049 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3050 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3051 is normally done by Configure or something similar).
3053 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3054 in the source file (foo.c) like this:
3056 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3057 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3059 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3060 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3062 OPENSSL_DECLARE_GLOBAL(int,foo);
3063 #define foo OPENSSL_GLOBAL_REF(foo)
3064 OPENSSL_DECLARE_GLOBAL(double,bar);
3065 #define bar OPENSSL_GLOBAL_REF(bar)
3067 The #defines are very important, and therefore so is including the
3068 header file everywhere where the defined globals are used.
3070 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3071 of ASN.1 items, but that structure is a bit different.
3073 The largest change is in util/mkdef.pl which has been enhanced with
3074 better and easier to understand logic to choose which symbols should
3075 go into the Windows .def files as well as a number of fixes and code
3076 cleanup (among others, algorithm keywords are now sorted
3077 lexicographically to avoid constant rewrites).
3080 *) In BN_div() keep a copy of the sign of 'num' before writing the
3081 result to 'rm' because if rm==num the value will be overwritten
3082 and produce the wrong result if 'num' is negative: this caused
3083 problems with BN_mod() and BN_nnmod().
3086 *) Function OCSP_request_verify(). This checks the signature on an
3087 OCSP request and verifies the signer certificate. The signer
3088 certificate is just checked for a generic purpose and OCSP request
3092 *) Add OCSP_check_validity() function to check the validity of OCSP
3093 responses. OCSP responses are prepared in real time and may only
3094 be a few seconds old. Simply checking that the current time lies
3095 between thisUpdate and nextUpdate max reject otherwise valid responses
3096 caused by either OCSP responder or client clock inaccuracy. Instead
3097 we allow thisUpdate and nextUpdate to fall within a certain period of
3098 the current time. The age of the response can also optionally be
3099 checked. Two new options -validity_period and -status_age added to
3103 *) If signature or public key algorithm is unrecognized print out its
3104 OID rather that just UNKNOWN.
3107 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3108 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3109 ID to be generated from the issuer certificate alone which can then be
3110 passed to OCSP_id_issuer_cmp().
3113 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3114 ASN1 modules to export functions returning ASN1_ITEM pointers
3115 instead of the ASN1_ITEM structures themselves. This adds several
3116 new macros which allow the underlying ASN1 function/structure to
3117 be accessed transparently. As a result code should not use ASN1_ITEM
3118 references directly (such as &X509_it) but instead use the relevant
3119 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3120 use of the new ASN1 code on platforms where exporting structures
3121 is problematical (for example in shared libraries) but exporting
3122 functions returning pointers to structures is not.
3125 *) Add support for overriding the generation of SSL/TLS session IDs.
3126 These callbacks can be registered either in an SSL_CTX or per SSL.
3127 The purpose of this is to allow applications to control, if they wish,
3128 the arbitrary values chosen for use as session IDs, particularly as it
3129 can be useful for session caching in multiple-server environments. A
3130 command-line switch for testing this (and any client code that wishes
3131 to use such a feature) has been added to "s_server".
3132 [Geoff Thorpe, Lutz Jaenicke]
3134 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3135 of the form '#if defined(...) || defined(...) || ...' and
3136 '#if !defined(...) && !defined(...) && ...'. This also avoids
3137 the growing number of special cases it was previously handling.
3140 *) Make all configuration macros available for application by making
3141 sure they are available in opensslconf.h, by giving them names starting
3142 with "OPENSSL_" to avoid conflicts with other packages and by making
3143 sure e_os2.h will cover all platform-specific cases together with
3145 Additionally, it is now possible to define configuration/platform-
3146 specific names (called "system identities"). In the C code, these
3147 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3148 macro with the name beginning with "OPENSSL_SYS_", which is determined
3149 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3153 *) New option -set_serial to 'req' and 'x509' this allows the serial
3154 number to use to be specified on the command line. Previously self
3155 signed certificates were hard coded with serial number 0 and the
3156 CA options of 'x509' had to use a serial number in a file which was
3160 *) New options to 'ca' utility to support V2 CRL entry extensions.
3161 Currently CRL reason, invalidity date and hold instruction are
3162 supported. Add new CRL extensions to V3 code and some new objects.
3165 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3166 disable standard block padding (aka PKCS#5 padding) in the EVP
3167 API, which was previously mandatory. This means that the data is
3168 not padded in any way and so the total length much be a multiple
3169 of the block size, otherwise an error occurs.
3172 *) Initial (incomplete) OCSP SSL support.
3175 *) New function OCSP_parse_url(). This splits up a URL into its host,
3176 port and path components: primarily to parse OCSP URLs. New -url
3177 option to ocsp utility.
3180 *) New nonce behavior. The return value of OCSP_check_nonce() now
3181 reflects the various checks performed. Applications can decide
3182 whether to tolerate certain situations such as an absent nonce
3183 in a response when one was present in a request: the ocsp application
3184 just prints out a warning. New function OCSP_add1_basic_nonce()
3185 this is to allow responders to include a nonce in a response even if
3186 the request is nonce-less.
3189 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3190 skipped when using openssl x509 multiple times on a single input file,
3191 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3194 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3195 set string type: to handle setting ASN1_TIME structures. Fix ca
3196 utility to correctly initialize revocation date of CRLs.
3199 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3200 the clients preferred ciphersuites and rather use its own preferences.
3201 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3202 Internet Explorer by ensuring unchanged hash method during stepup.
3203 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3206 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3207 to aes and add a new 'exist' option to print out symbols that don't
3211 *) Additional options to ocsp utility to allow flags to be set and
3212 additional certificates supplied.
3215 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3216 OCSP client a number of certificate to only verify the response
3220 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3221 handle the new API. Currently only ECB, CBC modes supported. Add new
3224 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3225 Encryption Standard (AES) Ciphersuites for Transport Layer
3226 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3227 not enabled by default and were not part of the "ALL" ciphersuite
3228 alias because they were not yet official; they could be
3229 explicitly requested by specifying the "AESdraft" ciphersuite
3230 group alias. In the final release of OpenSSL 0.9.7, the group
3231 alias is called "AES" and is part of "ALL".)
3232 [Ben Laurie, Steve Henson, Bodo Moeller]
3234 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3235 request to response.
3238 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3239 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3240 extract information from a certificate request. OCSP_response_create()
3241 creates a response and optionally adds a basic response structure.
3242 OCSP_basic_add1_status() adds a complete single response to a basic
3243 response and returns the OCSP_SINGLERESP structure just added (to allow
3244 extensions to be included for example). OCSP_basic_add1_cert() adds a
3245 certificate to a basic response and OCSP_basic_sign() signs a basic
3246 response with various flags. New helper functions ASN1_TIME_check()
3247 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3248 (converts ASN1_TIME to GeneralizedTime).
3251 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3252 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3253 structure from a certificate. X509_pubkey_digest() digests the public_key
3254 contents: this is used in various key identifiers.
3257 *) Make sk_sort() tolerate a NULL argument.
3258 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3260 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3261 passed by the function are trusted implicitly. If any of them signed the
3262 response then it is assumed to be valid and is not verified.
3265 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3266 to data. This was previously part of the PKCS7 ASN1 code. This
3267 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3268 [Steve Henson, reported by Kenneth R. Robinette
3269 <support@securenetterm.com>]
3271 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3272 routines: without these tracing memory leaks is very painful.
3273 Fix leaks in PKCS12 and PKCS7 routines.
3276 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3277 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3278 effectively meant GeneralizedTime would never be used. Now it
3279 is initialised to -1 but X509_time_adj() now has to check the value
3280 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3281 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3282 [Steve Henson, reported by Kenneth R. Robinette
3283 <support@securenetterm.com>]
3285 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3286 result in a zero length in the ASN1_INTEGER structure which was
3287 not consistent with the structure when d2i_ASN1_INTEGER() was used
3288 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3289 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3290 where it did not print out a minus for negative ASN1_INTEGER.
3293 *) Add summary printout to ocsp utility. The various functions which
3294 convert status values to strings have been renamed to:
3295 OCSP_response_status_str(), OCSP_cert_status_str() and
3296 OCSP_crl_reason_str() and are no longer static. New options
3297 to verify nonce values and to disable verification. OCSP response
3298 printout format cleaned up.
3301 *) Add additional OCSP certificate checks. These are those specified
3302 in RFC2560. This consists of two separate checks: the CA of the
3303 certificate being checked must either be the OCSP signer certificate
3304 or the issuer of the OCSP signer certificate. In the latter case the
3305 OCSP signer certificate must contain the OCSP signing extended key
3306 usage. This check is performed by attempting to match the OCSP
3307 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3308 in the OCSP_CERTID structures of the response.
3311 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3312 and related routines. This uses the standard OpenSSL certificate
3313 verify routines to perform initial checks (just CA validity) and
3314 to obtain the certificate chain. Then additional checks will be
3315 performed on the chain. Currently the root CA is checked to see
3316 if it is explicitly trusted for OCSP signing. This is used to set
3317 a root CA as a global signing root: that is any certificate that
3318 chains to that CA is an acceptable OCSP signing certificate.
3321 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3322 extensions from a separate configuration file.
3323 As when reading extensions from the main configuration file,
3324 the '-extensions ...' option may be used for specifying the
3326 [Massimiliano Pala <madwolf@comune.modena.it>]
3328 *) New OCSP utility. Allows OCSP requests to be generated or
3329 read. The request can be sent to a responder and the output
3330 parsed, outputed or printed in text form. Not complete yet:
3331 still needs to check the OCSP response validity.
3334 *) New subcommands for 'openssl ca':
3335 'openssl ca -status <serial>' prints the status of the cert with
3336 the given serial number (according to the index file).
3337 'openssl ca -updatedb' updates the expiry status of certificates
3339 [Massimiliano Pala <madwolf@comune.modena.it>]
3341 *) New '-newreq-nodes' command option to CA.pl. This is like
3342 '-newreq', but calls 'openssl req' with the '-nodes' option
3343 so that the resulting key is not encrypted.
3344 [Damien Miller <djm@mindrot.org>]
3346 *) New configuration for the GNU Hurd.
3347 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3349 *) Initial code to implement OCSP basic response verify. This
3350 is currently incomplete. Currently just finds the signer's
3351 certificate and verifies the signature on the response.
3354 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3355 value of OPENSSLDIR. This is available via the new '-d' option
3356 to 'openssl version', and is also included in 'openssl version -a'.
3359 *) Allowing defining memory allocation callbacks that will be given
3360 file name and line number information in additional arguments
3361 (a const char* and an int). The basic functionality remains, as
3362 well as the original possibility to just replace malloc(),
3363 realloc() and free() by functions that do not know about these
3364 additional arguments. To register and find out the current
3365 settings for extended allocation functions, the following
3366 functions are provided:
3368 CRYPTO_set_mem_ex_functions
3369 CRYPTO_set_locked_mem_ex_functions
3370 CRYPTO_get_mem_ex_functions
3371 CRYPTO_get_locked_mem_ex_functions
3373 These work the same way as CRYPTO_set_mem_functions and friends.
3374 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3375 extended allocation function is enabled.
3376 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3377 a conventional allocation function is enabled.
3378 [Richard Levitte, Bodo Moeller]
3380 *) Finish off removing the remaining LHASH function pointer casts.
3381 There should no longer be any prototype-casting required when using
3382 the LHASH abstraction, and any casts that remain are "bugs". See
3383 the callback types and macros at the head of lhash.h for details
3384 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3387 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3388 If /dev/[u]random devices are not available or do not return enough
3389 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3391 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3392 /etc/entropy will be queried once each in this sequence, quering stops
3393 when enough entropy was collected without querying more sockets.
3396 *) Change the Unix RAND_poll() variant to be able to poll several
3397 random devices, as specified by DEVRANDOM, until a sufficient amount
3398 of data has been collected. We spend at most 10 ms on each file
3399 (select timeout) and read in non-blocking mode. DEVRANDOM now
3400 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3401 (previously it was just the string "/dev/urandom"), so on typical
3402 platforms the 10 ms delay will never occur.
3403 Also separate out the Unix variant to its own file, rand_unix.c.
3404 For VMS, there's a currently-empty rand_vms.c.
3407 *) Move OCSP client related routines to ocsp_cl.c. These
3408 provide utility functions which an application needing
3409 to issue a request to an OCSP responder and analyse the
3410 response will typically need: as opposed to those which an
3411 OCSP responder itself would need which will be added later.
3413 OCSP_request_sign() signs an OCSP request with an API similar
3414 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3415 response. OCSP_response_get1_basic() extracts basic response
3416 from response. OCSP_resp_find_status(): finds and extracts status
3417 information from an OCSP_CERTID structure (which will be created
3418 when the request structure is built). These are built from lower
3419 level functions which work on OCSP_SINGLERESP structures but
3420 wont normally be used unless the application wishes to examine
3421 extensions in the OCSP response for example.
3423 Replace nonce routines with a pair of functions.
3424 OCSP_request_add1_nonce() adds a nonce value and optionally
3425 generates a random value. OCSP_check_nonce() checks the
3426 validity of the nonce in an OCSP response.
3429 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3430 This doesn't copy the supplied OCSP_CERTID and avoids the
3431 need to free up the newly created id. Change return type
3432 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3433 This can then be used to add extensions to the request.
3434 Deleted OCSP_request_new(), since most of its functionality
3435 is now in OCSP_REQUEST_new() (and the case insensitive name
3436 clash) apart from the ability to set the request name which
3437 will be added elsewhere.
3440 *) Update OCSP API. Remove obsolete extensions argument from
3441 various functions. Extensions are now handled using the new
3442 OCSP extension code. New simple OCSP HTTP function which
3443 can be used to send requests and parse the response.
3446 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3447 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3448 uses the special reorder version of SET OF to sort the attributes
3449 and reorder them to match the encoded order. This resolves a long
3450 standing problem: a verify on a PKCS7 structure just after signing
3451 it used to fail because the attribute order did not match the
3452 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3453 it uses the received order. This is necessary to tolerate some broken
3454 software that does not order SET OF. This is handled by encoding
3455 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3456 to produce the required SET OF.
3459 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3460 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3461 files to get correct declarations of the ASN.1 item variables.
3464 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3465 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3466 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3467 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3468 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3469 ASN1_ITEM and no wrapper functions.
3472 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3473 replace the old function pointer based I/O routines. Change most of
3474 the *_d2i_bio() and *_d2i_fp() functions to use these.
3477 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3478 lines, recognice more "algorithms" that can be deselected, and make
3479 it complain about algorithm deselection that isn't recognised.
3482 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3483 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3484 to use new functions. Add NO_ASN1_OLD which can be set to remove
3485 some old style ASN1 functions: this can be used to determine if old
3486 code will still work when these eventually go away.
3489 *) New extension functions for OCSP structures, these follow the
3490 same conventions as certificates and CRLs.
3493 *) New function X509V3_add1_i2d(). This automatically encodes and
3494 adds an extension. Its behaviour can be customised with various
3495 flags to append, replace or delete. Various wrappers added for
3496 certifcates and CRLs.
3499 *) Fix to avoid calling the underlying ASN1 print routine when
3500 an extension cannot be parsed. Correct a typo in the
3501 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3504 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3505 entries for variables.
3508 *) Add functionality to apps/openssl.c for detecting locking
3509 problems: As the program is single-threaded, all we have
3510 to do is register a locking callback using an array for
3511 storing which locks are currently held by the program.
3514 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3515 SSL_get_ex_data_X509_STORE_idx(), which is used in
3516 ssl_verify_cert_chain() and thus can be called at any time
3517 during TLS/SSL handshakes so that thread-safety is essential.
3518 Unfortunately, the ex_data design is not at all suited
3519 for multi-threaded use, so it probably should be abolished.
3522 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3523 [Broadcom, tweaked and integrated by Geoff Thorpe]
3525 *) Move common extension printing code to new function
3526 X509V3_print_extensions(). Reorganise OCSP print routines and
3527 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3530 *) New function X509_signature_print() to remove duplication in some
3534 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3535 set (this was treated exactly the same as SET OF previously). This
3536 is used to reorder the STACK representing the structure to match the
3537 encoding. This will be used to get round a problem where a PKCS7
3538 structure which was signed could not be verified because the STACK
3539 order did not reflect the encoded order.
3542 *) Reimplement the OCSP ASN1 module using the new code.
3545 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3546 for its ASN1 operations. The old style function pointers still exist
3547 for now but they will eventually go away.
3550 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3551 completely replaces the old ASN1 functionality with a table driven
3552 encoder and decoder which interprets an ASN1_ITEM structure describing
3553 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3554 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3555 has also been converted to the new form.
3558 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3559 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3560 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3561 for negative moduli.
3564 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3565 of not touching the result's sign bit.
3568 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3572 *) Changed the LHASH code to use prototypes for callbacks, and created
3573 macros to declare and implement thin (optionally static) functions
3574 that provide type-safety and avoid function pointer casting for the
3575 type-specific callbacks.
3578 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3580 [Veers Staats <staatsvr@asc.hpc.mil>,
3581 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3583 *) Reformat the FAQ so the different questions and answers can be divided
3584 in sections depending on the subject.
3587 *) Have the zlib compression code load ZLIB.DLL dynamically under
3591 *) New function BN_mod_sqrt for computing square roots modulo a prime
3592 (using the probabilistic Tonelli-Shanks algorithm unless
3593 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3594 be handled deterministically).
3595 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3597 *) Make BN_mod_inverse faster by explicitly handling small quotients
3598 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3599 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3602 *) New function BN_kronecker.
3605 *) Fix BN_gcd so that it works on negative inputs; the result is
3606 positive unless both parameters are zero.
3607 Previously something reasonably close to an infinite loop was
3608 possible because numbers could be growing instead of shrinking
3609 in the implementation of Euclid's algorithm.
3612 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3613 sign of the number in question.
3615 Fix BN_is_word(a,w) to work correctly for w == 0.
3617 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3618 because its test if the absolute value of 'a' equals 'w'.
3619 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3620 it exists mostly for use in the implementations of BN_is_zero(),
3621 BN_is_one(), and BN_is_word().
3624 *) New function BN_swap.
3627 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3628 the exponentiation functions are more likely to produce reasonable
3629 results on negative inputs.
3632 *) Change BN_mod_mul so that the result is always non-negative.
3633 Previously, it could be negative if one of the factors was negative;
3634 I don't think anyone really wanted that behaviour.
3637 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3638 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3639 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3640 and add new functions:
3649 BN_mod_lshift1_quick
3653 These functions always generate non-negative results.
3655 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3656 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3658 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3659 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3660 be reduced modulo m.
3661 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3664 The following entry accidentily appeared in the CHANGES file
3665 distributed with OpenSSL 0.9.7. The modifications described in
3666 it do *not* apply to OpenSSL 0.9.7.
3668 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3669 was actually never needed) and in BN_mul(). The removal in BN_mul()
3670 required a small change in bn_mul_part_recursive() and the addition
3671 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3672 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3673 bn_sub_words() and bn_add_words() except they take arrays with
3678 *) In 'openssl passwd', verify passwords read from the terminal
3679 unless the '-salt' option is used (which usually means that
3680 verification would just waste user's time since the resulting
3681 hash is going to be compared with some given password hash)
3682 or the new '-noverify' option is used.
3684 This is an incompatible change, but it does not affect
3685 non-interactive use of 'openssl passwd' (passwords on the command
3686 line, '-stdin' option, '-in ...' option) and thus should not
3690 *) Remove all references to RSAref, since there's no more need for it.
3693 *) Make DSO load along a path given through an environment variable
3694 (SHLIB_PATH) with shl_load().
3697 *) Constify the ENGINE code as a result of BIGNUM constification.
3698 Also constify the RSA code and most things related to it. In a
3699 few places, most notable in the depth of the ASN.1 code, ugly
3700 casts back to non-const were required (to be solved at a later
3704 *) Make it so the openssl application has all engines loaded by default.
3707 *) Constify the BIGNUM routines a little more.
3710 *) Add the following functions:
3712 ENGINE_load_cswift()
3714 ENGINE_load_atalla()
3716 ENGINE_load_builtin_engines()
3718 That way, an application can itself choose if external engines that
3719 are built-in in OpenSSL shall ever be used or not. The benefit is
3720 that applications won't have to be linked with libdl or other dso
3721 libraries unless it's really needed.
3723 Changed 'openssl engine' to load all engines on demand.
3724 Changed the engine header files to avoid the duplication of some
3725 declarations (they differed!).
3728 *) 'openssl engine' can now list capabilities.
3731 *) Better error reporting in 'openssl engine'.
3734 *) Never call load_dh_param(NULL) in s_server.
3737 *) Add engine application. It can currently list engines by name and
3738 identity, and test if they are actually available.
3741 *) Improve RPM specification file by forcing symbolic linking and making
3742 sure the installed documentation is also owned by root.root.
3743 [Damien Miller <djm@mindrot.org>]
3745 *) Give the OpenSSL applications more possibilities to make use of
3746 keys (public as well as private) handled by engines.
3749 *) Add OCSP code that comes from CertCo.
3752 *) Add VMS support for the Rijndael code.
3755 *) Added untested support for Nuron crypto accelerator.
3758 *) Add support for external cryptographic devices. This code was
3759 previously distributed separately as the "engine" branch.
3760 [Geoff Thorpe, Richard Levitte]
3762 *) Rework the filename-translation in the DSO code. It is now possible to
3763 have far greater control over how a "name" is turned into a filename
3764 depending on the operating environment and any oddities about the
3765 different shared library filenames on each system.
3768 *) Support threads on FreeBSD-elf in Configure.
3771 *) Fix for SHA1 assembly problem with MASM: it produces
3772 warnings about corrupt line number information when assembling
3773 with debugging information. This is caused by the overlapping
3775 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3778 NCONF_get_number() has no error checking at all. As a replacement,
3779 NCONF_get_number_e() is defined (_e for "error checking") and is
3780 promoted strongly. The old NCONF_get_number is kept around for
3781 binary backward compatibility.
3782 Make it possible for methods to load from something other than a BIO,
3783 by providing a function pointer that is given a name instead of a BIO.
3784 For example, this could be used to load configuration data from an
3788 *) Fix for non blocking accept BIOs. Added new I/O special reason
3789 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3790 with non blocking I/O was not possible because no retry code was
3791 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3795 *) Added the beginnings of Rijndael support.
3798 *) Fix for bug in DirectoryString mask setting. Add support for
3799 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3800 to allow certificate printing to more controllable, additional
3801 'certopt' option to 'x509' to allow new printing options to be
3805 *) Clean old EAY MD5 hack from e_os.h.
3808 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3810 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3811 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3812 [Joe Orton, Steve Henson]
3814 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3816 *) Fix additional bug revealed by the NISCC test suite:
3818 Stop bug triggering large recursion when presented with
3819 certain ASN.1 tags (CVE-2003-0851)
3822 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3824 *) Fix various bugs revealed by running the NISCC test suite:
3826 Stop out of bounds reads in the ASN1 code when presented with
3827 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3829 If verify callback ignores invalid public key errors don't try to check
3830 certificate signature with the NULL public key.
3834 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3835 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3839 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3840 extra data after the compression methods not only for TLS 1.0
3841 but also for SSL 3.0 (as required by the specification).
3842 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3844 *) Change X509_certificate_type() to mark the key as exported/exportable
3845 when it's 512 *bits* long, not 512 bytes.
3848 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3850 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3851 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3852 a protocol version number mismatch like a decryption error
3853 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3856 *) Turn on RSA blinding by default in the default implementation
3857 to avoid a timing attack. Applications that don't want it can call
3858 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3859 They would be ill-advised to do so in most cases.
3860 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3862 *) Change RSA blinding code so that it works when the PRNG is not
3863 seeded (in this case, the secret RSA exponent is abused as
3864 an unpredictable seed -- if it is not unpredictable, there
3865 is no point in blinding anyway). Make RSA blinding thread-safe
3866 by remembering the creator's thread ID in rsa->blinding and
3867 having all other threads use local one-time blinding factors
3868 (this requires more computation than sharing rsa->blinding, but
3869 avoids excessive locking; and if an RSA object is not shared
3870 between threads, blinding will still be very fast).
3873 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3875 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3876 via timing by performing a MAC computation even if incorrrect
3877 block cipher padding has been found. This is a countermeasure
3878 against active attacks where the attacker has to distinguish
3879 between bad padding and a MAC verification error. (CVE-2003-0078)
3881 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3882 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3883 Martin Vuagnoux (EPFL, Ilion)]
3885 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3887 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3888 memory from it's contents. This is done with a counter that will
3889 place alternating values in each byte. This can be used to solve
3890 two issues: 1) the removal of calls to memset() by highly optimizing
3891 compilers, and 2) cleansing with other values than 0, since those can
3892 be read through on certain media, for example a swap space on disk.
3895 *) Bugfix: client side session caching did not work with external caching,
3896 because the session->cipher setting was not restored when reloading
3897 from the external cache. This problem was masked, when
3898 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3899 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3902 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3903 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3904 [Zeev Lieber <zeev-l@yahoo.com>]
3906 *) Undo an undocumented change introduced in 0.9.6e which caused
3907 repeated calls to OpenSSL_add_all_ciphers() and
3908 OpenSSL_add_all_digests() to be ignored, even after calling
3912 *) Change the default configuration reader to deal with last line not
3913 being properly terminated.
3916 *) Change X509_NAME_cmp() so it applies the special rules on handling
3917 DN values that are of type PrintableString, as well as RDNs of type
3918 emailAddress where the value has the type ia5String.
3919 [stefank@valicert.com via Richard Levitte]
3921 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3922 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3923 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3924 the bitwise-OR of the two for use by the majority of applications
3925 wanting this behaviour, and update the docs. The documented
3926 behaviour and actual behaviour were inconsistent and had been
3927 changing anyway, so this is more a bug-fix than a behavioural
3929 [Geoff Thorpe, diagnosed by Nadav Har'El]
3931 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3932 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3935 *) Fix initialization code race conditions in
3936 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3937 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3938 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3939 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3940 ssl2_get_cipher_by_char(),
3941 ssl3_get_cipher_by_char().
3942 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3944 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3945 the cached sessions are flushed, as the remove_cb() might use ex_data
3946 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3947 (see [openssl.org #212]).
3948 [Geoff Thorpe, Lutz Jaenicke]
3950 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3951 length, instead of the encoding length to d2i_ASN1_OBJECT.
3954 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3956 *) [In 0.9.6g-engine release:]
3957 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3958 [Lynn Gazis <lgazis@rainbow.com>]
3960 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3962 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3963 and get fix the header length calculation.
3964 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3965 Alon Kantor <alonk@checkpoint.com> (and others),
3968 *) Use proper error handling instead of 'assertions' in buffer
3969 overflow checks added in 0.9.6e. This prevents DoS (the
3970 assertions could call abort()).
3971 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3973 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3975 *) Add various sanity checks to asn1_get_length() to reject
3976 the ASN1 length bytes if they exceed sizeof(long), will appear
3977 negative or the content length exceeds the length of the
3979 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3981 *) Fix cipher selection routines: ciphers without encryption had no flags
3982 for the cipher strength set and where therefore not handled correctly
3983 by the selection routines (PR #130).
3986 *) Fix EVP_dsa_sha macro.
3990 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3991 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3992 that was added in OpenSSL 0.9.6d.
3994 As the countermeasure turned out to be incompatible with some
3995 broken SSL implementations, the new option is part of SSL_OP_ALL.
3996 SSL_OP_ALL is usually employed when compatibility with weird SSL
3997 implementations is desired (e.g. '-bugs' option to 's_client' and
3998 's_server'), so the new option is automatically set in many
4002 *) Changes in security patch:
4004 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4005 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4006 Air Force Materiel Command, USAF, under agreement number
4009 *) Add various sanity checks to asn1_get_length() to reject
4010 the ASN1 length bytes if they exceed sizeof(long), will appear
4011 negative or the content length exceeds the length of the
4012 supplied buffer. (CVE-2002-0659)
4013 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4015 *) Assertions for various potential buffer overflows, not known to
4017 [Ben Laurie (CHATS)]
4019 *) Various temporary buffers to hold ASCII versions of integers were
4020 too small for 64 bit platforms. (CVE-2002-0655)
4021 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4023 *) Remote buffer overflow in SSL3 protocol - an attacker could
4024 supply an oversized session ID to a client. (CVE-2002-0656)
4025 [Ben Laurie (CHATS)]
4027 *) Remote buffer overflow in SSL2 protocol - an attacker could
4028 supply an oversized client master key. (CVE-2002-0656)
4029 [Ben Laurie (CHATS)]
4031 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4033 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4034 encoded as NULL) with id-dsa-with-sha1.
4035 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4037 *) Check various X509_...() return values in apps/req.c.
4038 [Nils Larsch <nla@trustcenter.de>]
4040 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4041 an end-of-file condition would erronously be flagged, when the CRLF
4042 was just at the end of a processed block. The bug was discovered when
4043 processing data through a buffering memory BIO handing the data to a
4044 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4045 <ptsekov@syntrex.com> and Nedelcho Stanev.
4048 *) Implement a countermeasure against a vulnerability recently found
4049 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4050 before application data chunks to avoid the use of known IVs
4051 with data potentially chosen by the attacker.
4054 *) Fix length checks in ssl3_get_client_hello().
4057 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4058 to prevent ssl3_read_internal() from incorrectly assuming that
4059 ssl3_read_bytes() found application data while handshake
4060 processing was enabled when in fact s->s3->in_read_app_data was
4061 merely automatically cleared during the initial handshake.
4062 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4064 *) Fix object definitions for Private and Enterprise: they were not
4065 recognized in their shortname (=lowercase) representation. Extend
4066 obj_dat.pl to issue an error when using undefined keywords instead
4067 of silently ignoring the problem (Svenning Sorensen
4068 <sss@sss.dnsalias.net>).
4071 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4072 generators, i.e. generators other than 2 and 5. (Previously, the
4073 code did not properly initialise the 'add' and 'rem' values to
4074 BN_generate_prime().)
4076 In the new general case, we do not insist that 'generator' is
4077 actually a primitive root: This requirement is rather pointless;
4078 a generator of the order-q subgroup is just as good, if not
4082 *) Map new X509 verification errors to alerts. Discovered and submitted by
4083 Tom Wu <tom@arcot.com>.
4086 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4087 returning non-zero before the data has been completely received
4088 when using non-blocking I/O.
4089 [Bodo Moeller; problem pointed out by John Hughes]
4091 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4092 [Ben Laurie, Lutz Jaenicke]
4094 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4095 Yoram Zahavi <YoramZ@gilian.com>).
4098 *) Add information about CygWin 1.3 and on, and preserve proper
4099 configuration for the versions before that.
4100 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4102 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4103 check whether we deal with a copy of a session and do not delete from
4104 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4105 <izhar@checkpoint.com>.
4108 *) Do not store session data into the internal session cache, if it
4109 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4110 flag is set). Proposed by Aslam <aslam@funk.com>.
4113 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4117 *) [In 0.9.6d-engine release:]
4118 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4119 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4121 *) Add the configuration target linux-s390x.
4122 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4124 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4125 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4126 variable as an indication that a ClientHello message has been
4127 received. As the flag value will be lost between multiple
4128 invocations of ssl3_accept when using non-blocking I/O, the
4129 function may not be aware that a handshake has actually taken
4130 place, thus preventing a new session from being added to the
4133 To avoid this problem, we now set s->new_session to 2 instead of
4134 using a local variable.
4135 [Lutz Jaenicke, Bodo Moeller]
4137 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4138 if the SSL_R_LENGTH_MISMATCH error is detected.
4139 [Geoff Thorpe, Bodo Moeller]
4141 *) New 'shared_ldflag' column in Configure platform table.
4144 *) Fix EVP_CIPHER_mode macro.
4145 ["Dan S. Camper" <dan@bti.net>]
4147 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4148 type, we must throw them away by setting rr->length to 0.
4149 [D P Chang <dpc@qualys.com>]
4151 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4153 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4154 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4155 worked incorrectly for those cases where range = 10..._2 and
4156 3*range is two bits longer than range.)
4159 *) Only add signing time to PKCS7 structures if it is not already
4163 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4164 OBJ_ld_ce should be OBJ_id_ce.
4165 Also some ip-pda OIDs in crypto/objects/objects.txt were
4166 incorrect (cf. RFC 3039).
4167 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4169 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4170 returns early because it has nothing to do.
4171 [Andy Schneider <andy.schneider@bjss.co.uk>]
4173 *) [In 0.9.6c-engine release:]
4174 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4175 [Andy Schneider <andy.schneider@bjss.co.uk>]
4177 *) [In 0.9.6c-engine release:]
4178 Add support for Cryptographic Appliance's keyserver technology.
4179 (Use engine 'keyclient')
4180 [Cryptographic Appliances and Geoff Thorpe]
4182 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4183 is called via tools/c89.sh because arguments have to be
4184 rearranged (all '-L' options must appear before the first object
4186 [Richard Shapiro <rshapiro@abinitio.com>]
4188 *) [In 0.9.6c-engine release:]
4189 Add support for Broadcom crypto accelerator cards, backported
4191 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4193 *) [In 0.9.6c-engine release:]
4194 Add support for SureWare crypto accelerator cards from
4195 Baltimore Technologies. (Use engine 'sureware')
4196 [Baltimore Technologies and Mark Cox]
4198 *) [In 0.9.6c-engine release:]
4199 Add support for crypto accelerator cards from Accelerated
4200 Encryption Processing, www.aep.ie. (Use engine 'aep')
4201 [AEP Inc. and Mark Cox]
4203 *) Add a configuration entry for gcc on UnixWare.
4204 [Gary Benson <gbenson@redhat.com>]
4206 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4207 messages are stored in a single piece (fixed-length part and
4208 variable-length part combined) and fix various bugs found on the way.
4211 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4212 instead. BIO_gethostbyname() does not know what timeouts are
4213 appropriate, so entries would stay in cache even when they have
4215 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4217 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4218 faced with a pathologically small ClientHello fragment that does
4219 not contain client_version: Instead of aborting with an error,
4220 simply choose the highest available protocol version (i.e.,
4221 TLS 1.0 unless it is disabled). In practice, ClientHello
4222 messages are never sent like this, but this change gives us
4223 strictly correct behaviour at least for TLS.
4226 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4227 never resets s->method to s->ctx->method when called from within
4228 one of the SSL handshake functions.
4229 [Bodo Moeller; problem pointed out by Niko Baric]
4231 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4232 (sent using the client's version number) if client_version is
4233 smaller than the protocol version in use. Also change
4234 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4235 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4236 the client will at least see that alert.
4239 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4243 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4244 client receives HelloRequest while in a handshake.
4245 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4247 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4248 should end in 'break', not 'goto end' which circuments various
4249 cleanups done in state SSL_ST_OK. But session related stuff
4250 must be disabled for SSL_ST_OK in the case that we just sent a
4253 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4254 before just sending a HelloRequest.
4255 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4257 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4258 reveal whether illegal block cipher padding was found or a MAC
4259 verification error occured. (Neither SSLerr() codes nor alerts
4260 are directly visible to potential attackers, but the information
4261 may leak via logfiles.)
4263 Similar changes are not required for the SSL 2.0 implementation
4264 because the number of padding bytes is sent in clear for SSL 2.0,
4265 and the extra bytes are just ignored. However ssl/s2_pkt.c
4266 failed to verify that the purported number of padding bytes is in
4270 *) Add OpenUNIX-8 support including shared libraries
4271 (Boyd Lynn Gerber <gerberb@zenez.com>).
4274 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4275 'wristwatch attack' using huge encoding parameters (cf.
4276 James H. Manger's CRYPTO 2001 paper). Note that the
4277 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4278 encoding parameters and hence was not vulnerable.
4281 *) BN_sqr() bug fix.
4282 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4284 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4285 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4286 followed by modular reduction.
4287 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4289 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4290 equivalent based on BN_pseudo_rand() instead of BN_rand().
4293 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4294 This function was broken, as the check for a new client hello message
4295 to handle SGC did not allow these large messages.
4296 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4299 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4302 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4303 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4306 *) Rework the configuration and shared library support for Tru64 Unix.
4307 The configuration part makes use of modern compiler features and
4308 still retains old compiler behavior for those that run older versions
4309 of the OS. The shared library support part includes a variant that
4310 uses the RPATH feature, and is available through the special
4311 configuration target "alpha-cc-rpath", which will never be selected
4313 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4315 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4316 with the same message size as in ssl3_get_certificate_request().
4317 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4318 messages might inadvertently be reject as too long.
4319 [Petr Lampa <lampa@fee.vutbr.cz>]
4321 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4324 *) Modified SSL library such that the verify_callback that has been set
4325 specificly for an SSL object with SSL_set_verify() is actually being
4326 used. Before the change, a verify_callback set with this function was
4327 ignored and the verify_callback() set in the SSL_CTX at the time of
4328 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4329 to allow the necessary settings.
4332 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4333 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4334 done automatically (in contradiction to the requirements of the C
4335 standard). This made problems when used from OpenSSH.
4338 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4339 dh->length and always used
4341 BN_rand_range(priv_key, dh->p).
4343 BN_rand_range() is not necessary for Diffie-Hellman, and this
4344 specific range makes Diffie-Hellman unnecessarily inefficient if
4345 dh->length (recommended exponent length) is much smaller than the
4346 length of dh->p. We could use BN_rand_range() if the order of
4347 the subgroup was stored in the DH structure, but we only have
4352 BN_rand(priv_key, l, ...)
4354 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4360 RSA_eay_public_encrypt
4361 RSA_eay_private_decrypt
4362 RSA_eay_private_encrypt (signing)
4363 RSA_eay_public_decrypt (signature verification)
4365 (default implementations for RSA_public_encrypt,
4366 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4367 always reject numbers >= n.
4370 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4371 to synchronize access to 'locking_thread'. This is necessary on
4372 systems where access to 'locking_thread' (an 'unsigned long'
4373 variable) is not atomic.
4376 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4377 *before* setting the 'crypto_lock_rand' flag. The previous code had
4378 a race condition if 0 is a valid thread ID.
4379 [Travis Vitek <vitek@roguewave.com>]
4381 *) Add support for shared libraries under Irix.
4382 [Albert Chin-A-Young <china@thewrittenword.com>]
4384 *) Add configuration option to build on Linux on both big-endian and
4386 [Ralf Baechle <ralf@uni-koblenz.de>]
4388 *) Add the possibility to create shared libraries on HP-UX.
4391 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4393 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4394 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4395 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4396 PRNG state recovery was possible based on the output of
4397 one PRNG request appropriately sized to gain knowledge on
4398 'md' followed by enough consecutive 1-byte PRNG requests
4399 to traverse all of 'state'.
4401 1. When updating 'md_local' (the current thread's copy of 'md')
4402 during PRNG output generation, hash all of the previous
4403 'md_local' value, not just the half used for PRNG output.
4405 2. Make the number of bytes from 'state' included into the hash
4406 independent from the number of PRNG bytes requested.
4408 The first measure alone would be sufficient to avoid
4409 Markku-Juhani's attack. (Actually it had never occurred
4410 to me that the half of 'md_local' used for chaining was the
4411 half from which PRNG output bytes were taken -- I had always
4412 assumed that the secret half would be used.) The second
4413 measure makes sure that additional data from 'state' is never
4414 mixed into 'md_local' in small portions; this heuristically
4415 further strengthens the PRNG.
4418 *) Fix crypto/bn/asm/mips3.s.
4421 *) When only the key is given to "enc", the IV is undefined. Print out
4422 an error message in this case.
4425 *) Handle special case when X509_NAME is empty in X509 printing routines.
4428 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4429 positive and less than q.
4432 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4433 used: it isn't thread safe and the add_lock_callback should handle
4435 [Paul Rose <Paul.Rose@bridge.com>]
4437 *) Verify that incoming data obeys the block size in
4438 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4442 [Ulf Möller, Bodo Möller]
4444 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4445 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4446 when fixing the server behaviour for backwards-compatible 'client
4447 hello' messages. (Note that the attack is impractical against
4448 SSL 3.0 and TLS 1.0 anyway because length and version checking
4449 means that the probability of guessing a valid ciphertext is
4450 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4453 Before 0.9.5, the countermeasure (hide the error by generating a
4454 random 'decryption result') did not work properly because
4455 ERR_clear_error() was missing, meaning that SSL_get_error() would
4456 detect the supposedly ignored error.
4458 Both problems are now fixed.
4461 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4462 (previously it was 1024).
4465 *) Fix for compatibility mode trust settings: ignore trust settings
4466 unless some valid trust or reject settings are present.
4469 *) Fix for blowfish EVP: its a variable length cipher.
4472 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4473 parameters in DSA public key structures and return an error in the
4474 DSA routines if parameters are absent.
4477 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4478 in the current directory if neither $RANDFILE nor $HOME was set.
4479 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4480 caused some confusion to Windows users who haven't defined $HOME.
4481 Thus RAND_file_name() is changed again: e_os.h can define a
4482 DEFAULT_HOME, which will be used if $HOME is not set.
4483 For Windows, we use "C:"; on other platforms, we still require
4484 environment variables.
4486 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4487 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4488 having multiple threads call RAND_poll() concurrently.
4491 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4492 combination of a flag and a thread ID variable.
4493 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4494 flag), *other* threads can enter ssleay_add_bytes without obeying
4495 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4496 that they do not hold after the first thread unsets add_do_not_lock).
4499 *) Change bctest again: '-x' expressions are not available in all
4503 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4505 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4506 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4508 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4509 the default extension for executables, if any. Also, make the perl
4510 scripts that use symlink() to test if it really exists and use "cp"
4511 if it doesn't. All this made OpenSSL compilable and installable in
4515 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4516 If SEQUENCE is length is indefinite just set c->slen to the total
4517 amount of data available.
4518 [Steve Henson, reported by shige@FreeBSD.org]
4519 [This change does not apply to 0.9.7.]
4521 *) Change bctest to avoid here-documents inside command substitution
4522 (workaround for FreeBSD /bin/sh bug).
4523 For compatibility with Ultrix, avoid shell functions (introduced
4524 in the bctest version that searches along $PATH).
4527 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4528 with des_encrypt() defined on some operating systems, like Solaris
4532 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4533 On the Importance of Eliminating Errors in Cryptographic
4534 Computations, J. Cryptology 14 (2001) 2, 101-119,
4535 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4538 *) MIPS assembler BIGNUM division bug fix.
4541 *) Disabled incorrect Alpha assembler code.
4544 *) Fix PKCS#7 decode routines so they correctly update the length
4545 after reading an EOC for the EXPLICIT tag.
4547 [This change does not apply to 0.9.7.]
4549 *) Fix bug in PKCS#12 key generation routines. This was triggered
4550 if a 3DES key was generated with a 0 initial byte. Include
4551 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4552 (but broken) behaviour.
4555 *) Enhance bctest to search for a working bc along $PATH and print
4557 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4559 *) Fix memory leaks in err.c: free err_data string if necessary;
4560 don't write to the wrong index in ERR_set_error_data.
4563 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4567 *) Replace rdtsc with _emit statements for VC++ version 5.
4568 [Jeremy Cooper <jeremy@baymoo.org>]
4570 *) Make it possible to reuse SSLv2 sessions.
4573 *) In copy_email() check for >= 0 as a return value for
4574 X509_NAME_get_index_by_NID() since 0 is a valid index.
4575 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4577 *) Avoid coredump with unsupported or invalid public keys by checking if
4578 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4579 PKCS7_verify() fails with non detached data.
4582 *) Don't use getenv in library functions when run as setuid/setgid.
4583 New function OPENSSL_issetugid().
4586 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4587 due to incorrect handling of multi-threading:
4589 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4591 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4593 3. Count how many times MemCheck_off() has been called so that
4594 nested use can be treated correctly. This also avoids
4595 inband-signalling in the previous code (which relied on the
4596 assumption that thread ID 0 is impossible).
4599 *) Add "-rand" option also to s_client and s_server.
4602 *) Fix CPU detection on Irix 6.x.
4603 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4604 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4606 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4609 [This change does not apply to 0.9.7.]
4611 *) Use the cached encoding of an X509_NAME structure rather than
4612 copying it. This is apparently the reason for the libsafe "errors"
4613 but the code is actually correct.
4616 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4617 Bleichenbacher's DSA attack.
4618 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4619 to be set and top=0 forces the highest bit to be set; top=-1 is new
4620 and leaves the highest bit random.
4621 [Ulf Moeller, Bodo Moeller]
4623 *) In the NCONF_...-based implementations for CONF_... queries
4624 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4625 a temporary CONF structure with the data component set to NULL
4626 (which gives segmentation faults in lh_retrieve).
4627 Instead, use NULL for the CONF pointer in CONF_get_string and
4628 CONF_get_number (which may use environment variables) and directly
4629 return NULL from CONF_get_section.
4632 *) Fix potential buffer overrun for EBCDIC.
4635 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4636 keyUsage if basicConstraints absent for a CA.
4639 *) Make SMIME_write_PKCS7() write mail header values with a format that
4640 is more generally accepted (no spaces before the semicolon), since
4641 some programs can't parse those values properly otherwise. Also make
4642 sure BIO's that break lines after each write do not create invalid
4646 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4647 macros previously used would not encode an empty SEQUENCE OF
4648 and break the signature.
4650 [This change does not apply to 0.9.7.]
4652 *) Zero the premaster secret after deriving the master secret in
4656 *) Add some EVP_add_digest_alias registrations (as found in
4657 OpenSSL_add_all_digests()) to SSL_library_init()
4658 aka OpenSSL_add_ssl_algorithms(). This provides improved
4659 compatibility with peers using X.509 certificates
4660 with unconventional AlgorithmIdentifier OIDs.
4663 *) Fix for Irix with NO_ASM.
4664 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4666 *) ./config script fixes.
4667 [Ulf Moeller, Richard Levitte]
4669 *) Fix 'openssl passwd -1'.
4672 *) Change PKCS12_key_gen_asc() so it can cope with non null
4673 terminated strings whose length is passed in the passlen
4674 parameter, for example from PEM callbacks. This was done
4675 by adding an extra length parameter to asc2uni().
4676 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4678 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4679 call failed, free the DSA structure.
4682 *) Fix to uni2asc() to cope with zero length Unicode strings.
4683 These are present in some PKCS#12 files.
4686 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4687 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4688 when writing a 32767 byte record.
4689 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4691 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4692 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4694 (RSA objects have a reference count access to which is protected
4695 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4696 so they are meant to be shared between threads.)
4697 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4698 "Reddie, Steven" <Steven.Reddie@ca.com>]
4700 *) Fix a deadlock in CRYPTO_mem_leaks().
4703 *) Use better test patterns in bntest.
4706 *) rand_win.c fix for Borland C.
4709 *) BN_rshift bugfix for n == 0.
4712 *) Add a 'bctest' script that checks for some known 'bc' bugs
4713 so that 'make test' does not abort just because 'bc' is broken.
4716 *) Store verify_result within SSL_SESSION also for client side to
4717 avoid potential security hole. (Re-used sessions on the client side
4718 always resulted in verify_result==X509_V_OK, not using the original
4719 result of the server certificate verification.)
4722 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4723 SSL3_RT_APPLICATION_DATA, return 0.
4724 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4728 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4729 releases, have been re-implemented by renaming the previous
4730 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4731 and ssl3_read_internal, respectively, and adding 'peek' parameters
4732 to them. The new ssl[23]_{read,peek} functions are calls to
4733 ssl[23]_read_internal with the 'peek' flag set appropriately.
4734 A 'peek' parameter has also been added to ssl3_read_bytes, which
4735 does the actual work for ssl3_read_internal.
4738 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4739 the method-specific "init()" handler. Also clean up ex_data after
4740 calling the method-specific "finish()" handler. Previously, this was
4741 happening the other way round.
4744 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4745 The previous value, 12, was not always sufficient for BN_mod_exp().
4748 *) Make sure that shared libraries get the internal name engine with
4749 the full version number and not just 0. This should mark the
4750 shared libraries as not backward compatible. Of course, this should
4751 be changed again when we can guarantee backward binary compatibility.
4754 *) Fix typo in get_cert_by_subject() in by_dir.c
4755 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4757 *) Rework the system to generate shared libraries:
4759 - Make note of the expected extension for the shared libraries and
4760 if there is a need for symbolic links from for example libcrypto.so.0
4761 to libcrypto.so.0.9.7. There is extended info in Configure for
4764 - Make as few rebuilds of the shared libraries as possible.
4766 - Still avoid linking the OpenSSL programs with the shared libraries.
4768 - When installing, install the shared libraries separately from the
4772 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4774 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4775 and not in SSL_clear because the latter is also used by the
4776 accept/connect functions; previously, the settings made by
4777 SSL_set_read_ahead would be lost during the handshake.
4778 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4780 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4781 Previously, it would create entries for disableed algorithms no
4785 *) Added several new manual pages for SSL_* function.
4788 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4790 *) In ssl23_get_client_hello, generate an error message when faced
4791 with an initial SSL 3.0/TLS record that is too small to contain the
4792 first two bytes of the ClientHello message, i.e. client_version.
4793 (Note that this is a pathologic case that probably has never happened
4794 in real life.) The previous approach was to use the version number
4795 from the record header as a substitute; but our protocol choice
4796 should not depend on that one because it is not authenticated
4797 by the Finished messages.
4800 *) More robust randomness gathering functions for Windows.
4801 [Jeffrey Altman <jaltman@columbia.edu>]
4803 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4804 not set then we don't setup the error code for issuer check errors
4805 to avoid possibly overwriting other errors which the callback does
4806 handle. If an application does set the flag then we assume it knows
4807 what it is doing and can handle the new informational codes
4811 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4812 a general "ANY" type, as such it should be able to decode anything
4813 including tagged types. However it didn't check the class so it would
4814 wrongly interpret tagged types in the same way as their universal
4815 counterpart and unknown types were just rejected. Changed so that the
4816 tagged and unknown types are handled in the same way as a SEQUENCE:
4817 that is the encoding is stored intact. There is also a new type
4818 "V_ASN1_OTHER" which is used when the class is not universal, in this
4819 case we have no idea what the actual type is so we just lump them all
4823 *) On VMS, stdout may very well lead to a file that is written to
4824 in a record-oriented fashion. That means that every write() will
4825 write a separate record, which will be read separately by the
4826 programs trying to read from it. This can be very confusing.
4828 The solution is to put a BIO filter in the way that will buffer
4829 text until a linefeed is reached, and then write everything a
4830 line at a time, so every record written will be an actual line,
4831 not chunks of lines and not (usually doesn't happen, but I've
4832 seen it once) several lines in one record. BIO_f_linebuffer() is
4835 Currently, it's a VMS-only method, because that's where it has
4836 been tested well enough.
4839 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4840 it can return incorrect results.
4841 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4842 but it was in 0.9.6-beta[12].)
4845 *) Disable the check for content being present when verifying detached
4846 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4847 include zero length content when signing messages.
4850 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4851 BIO_ctrl (for BIO pairs).
4854 *) Add DSO method for VMS.
4857 *) Bug fix: Montgomery multiplication could produce results with the
4861 *) Add RPM specification openssl.spec and modify it to build three
4862 packages. The default package contains applications, application
4863 documentation and run-time libraries. The devel package contains
4864 include files, static libraries and function documentation. The
4865 doc package contains the contents of the doc directory. The original
4866 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4869 *) Add a large number of documentation files for many SSL routines.
4870 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4872 *) Add a configuration entry for Sony News 4.
4873 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4875 *) Don't set the two most significant bits to one when generating a
4876 random number < q in the DSA library.
4879 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4880 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4881 the underlying transport is blocking) if a handshake took place.
4882 (The default behaviour is needed by applications such as s_client
4883 and s_server that use select() to determine when to use SSL_read;
4884 but for applications that know in advance when to expect data, it
4885 just makes things more complicated.)
4888 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4892 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4893 work better on such systems.
4894 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4896 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4897 Update PKCS12_parse() so it copies the friendlyName and the
4898 keyid to the certificates aux info.
4901 *) Fix bug in PKCS7_verify() which caused an infinite loop
4902 if there was more than one signature.
4903 [Sven Uszpelkat <su@celocom.de>]
4905 *) Major change in util/mkdef.pl to include extra information
4906 about each symbol, as well as presentig variables as well
4907 as functions. This change means that there's n more need
4908 to rebuild the .num files when some algorithms are excluded.
4911 *) Allow the verify time to be set by an application,
4912 rather than always using the current time.
4915 *) Phase 2 verify code reorganisation. The certificate
4916 verify code now looks up an issuer certificate by a
4917 number of criteria: subject name, authority key id
4918 and key usage. It also verifies self signed certificates
4919 by the same criteria. The main comparison function is
4920 X509_check_issued() which performs these checks.
4922 Lot of changes were necessary in order to support this
4923 without completely rewriting the lookup code.
4925 Authority and subject key identifier are now cached.
4927 The LHASH 'certs' is X509_STORE has now been replaced
4928 by a STACK_OF(X509_OBJECT). This is mainly because an
4929 LHASH can't store or retrieve multiple objects with
4930 the same hash value.
4932 As a result various functions (which were all internal
4933 use only) have changed to handle the new X509_STORE
4934 structure. This will break anything that messed round
4935 with X509_STORE internally.
4937 The functions X509_STORE_add_cert() now checks for an
4938 exact match, rather than just subject name.
4940 The X509_STORE API doesn't directly support the retrieval
4941 of multiple certificates matching a given criteria, however
4942 this can be worked round by performing a lookup first
4943 (which will fill the cache with candidate certificates)
4944 and then examining the cache for matches. This is probably
4945 the best we can do without throwing out X509_LOOKUP
4946 entirely (maybe later...).
4948 The X509_VERIFY_CTX structure has been enhanced considerably.
4950 All certificate lookup operations now go via a get_issuer()
4951 callback. Although this currently uses an X509_STORE it
4952 can be replaced by custom lookups. This is a simple way
4953 to bypass the X509_STORE hackery necessary to make this
4954 work and makes it possible to use more efficient techniques
4955 in future. A very simple version which uses a simple
4956 STACK for its trusted certificate store is also provided
4957 using X509_STORE_CTX_trusted_stack().
4959 The verify_cb() and verify() callbacks now have equivalents
4960 in the X509_STORE_CTX structure.
4962 X509_STORE_CTX also has a 'flags' field which can be used
4963 to customise the verify behaviour.
4966 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4967 excludes S/MIME capabilities.
4970 *) When a certificate request is read in keep a copy of the
4971 original encoding of the signed data and use it when outputing
4972 again. Signatures then use the original encoding rather than
4973 a decoded, encoded version which may cause problems if the
4974 request is improperly encoded.
4977 *) For consistency with other BIO_puts implementations, call
4978 buffer_write(b, ...) directly in buffer_puts instead of calling
4981 In BIO_puts, increment b->num_write as in BIO_write.
4982 [Peter.Sylvester@EdelWeb.fr]
4984 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4985 BN_zero, we may not return a BIGNUM with an array consisting of
4989 *) Avoid calling abort() from within the library when problems are
4990 detected, except if preprocessor symbols have been defined
4991 (such as REF_CHECK, BN_DEBUG etc.).
4994 *) New openssl application 'rsautl'. This utility can be
4995 used for low level RSA operations. DER public key
4996 BIO/fp routines also added.
4999 *) New Configure entry and patches for compiling on QNX 4.
5000 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5002 *) A demo state-machine implementation was sponsored by
5003 Nuron (http://www.nuron.com/) and is now available in
5004 demos/state_machine.
5007 *) New options added to the 'dgst' utility for signature
5008 generation and verification.
5011 *) Unrecognized PKCS#7 content types are now handled via a
5012 catch all ASN1_TYPE structure. This allows unsupported
5013 types to be stored as a "blob" and an application can
5014 encode and decode it manually.
5017 *) Fix various signed/unsigned issues to make a_strex.c
5019 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5021 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5022 length if passed a buffer. ASN1_INTEGER_to_BN failed
5023 if passed a NULL BN and its argument was negative.
5024 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5026 *) Modification to PKCS#7 encoding routines to output definite
5027 length encoding. Since currently the whole structures are in
5028 memory there's not real point in using indefinite length
5029 constructed encoding. However if OpenSSL is compiled with
5030 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5033 *) Added BIO_vprintf() and BIO_vsnprintf().
5036 *) Added more prefixes to parse for in the the strings written
5037 through a logging bio, to cover all the levels that are available
5038 through syslog. The prefixes are now:
5040 PANIC, EMERG, EMR => LOG_EMERG
5041 ALERT, ALR => LOG_ALERT
5042 CRIT, CRI => LOG_CRIT
5043 ERROR, ERR => LOG_ERR
5044 WARNING, WARN, WAR => LOG_WARNING
5045 NOTICE, NOTE, NOT => LOG_NOTICE
5046 INFO, INF => LOG_INFO
5047 DEBUG, DBG => LOG_DEBUG
5049 and as before, if none of those prefixes are present at the
5050 beginning of the string, LOG_ERR is chosen.
5052 On Win32, the LOG_* levels are mapped according to this:
5054 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5055 LOG_WARNING => EVENTLOG_WARNING_TYPE
5056 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5060 *) Made it possible to reconfigure with just the configuration
5061 argument "reconf" or "reconfigure". The command line arguments
5062 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5063 and are retrieved from there when reconfiguring.
5067 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5069 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5072 *) The obj_dat.pl script was messing up the sorting of object
5073 names. The reason was that it compared the quoted version
5074 of strings as a result "OCSP" > "OCSP Signing" because
5075 " > SPACE. Changed script to store unquoted versions of
5076 names and add quotes on output. It was also omitting some
5077 names from the lookup table if they were given a default
5078 value (that is if SN is missing it is given the same
5079 value as LN and vice versa), these are now added on the
5080 grounds that if an object has a name we should be able to
5081 look it up. Finally added warning output when duplicate
5082 short or long names are found.
5085 *) Changes needed for Tandem NSK.
5086 [Scott Uroff <scott@xypro.com>]
5088 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5089 RSA_padding_check_SSLv23(), special padding was never detected
5090 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5091 version rollback attacks was not effective.
5093 In s23_clnt.c, don't use special rollback-attack detection padding
5094 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5095 client; similarly, in s23_srvr.c, don't do the rollback check if
5096 SSL 2.0 is the only protocol enabled in the server.
5099 *) Make it possible to get hexdumps of unprintable data with 'openssl
5100 asn1parse'. By implication, the functions ASN1_parse_dump() and
5101 BIO_dump_indent() are added.
5104 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5105 these print out strings and name structures based on various
5106 flags including RFC2253 support and proper handling of
5107 multibyte characters. Added options to the 'x509' utility
5108 to allow the various flags to be set.
5111 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5112 Also change the functions X509_cmp_current_time() and
5113 X509_gmtime_adj() work with an ASN1_TIME structure,
5114 this will enable certificates using GeneralizedTime in validity
5115 dates to be checked.
5118 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5119 negative public key encodings) on by default,
5120 NO_NEG_PUBKEY_BUG can be set to disable it.
5123 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5124 content octets. An i2c_ASN1_OBJECT is unnecessary because
5125 the encoding can be trivially obtained from the structure.
5128 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5129 not read locks (CRYPTO_r_[un]lock).
5132 *) A first attempt at creating official support for shared
5133 libraries through configuration. I've kept it so the
5134 default is static libraries only, and the OpenSSL programs
5135 are always statically linked for now, but there are
5136 preparations for dynamic linking in place.
5137 This has been tested on Linux and Tru64.
5140 *) Randomness polling function for Win9x, as described in:
5141 Peter Gutmann, Software Generation of Practically Strong
5145 *) Fix so PRNG is seeded in req if using an already existing
5149 *) New options to smime application. -inform and -outform
5150 allow alternative formats for the S/MIME message including
5151 PEM and DER. The -content option allows the content to be
5152 specified separately. This should allow things like Netscape
5153 form signing output easier to verify.
5156 *) Fix the ASN1 encoding of tags using the 'long form'.
5159 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5160 STRING types. These convert content octets to and from the
5161 underlying type. The actual tag and length octets are
5162 already assumed to have been read in and checked. These
5163 are needed because all other string types have virtually
5164 identical handling apart from the tag. By having versions
5165 of the ASN1 functions that just operate on content octets
5166 IMPLICIT tagging can be handled properly. It also allows
5167 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5168 and ASN1_INTEGER are identical apart from the tag.
5171 *) Change the handling of OID objects as follows:
5173 - New object identifiers are inserted in objects.txt, following
5174 the syntax given in objects.README.
5175 - objects.pl is used to process obj_mac.num and create a new
5177 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5180 This is currently kind of a hack, and the perl code in objects.pl
5181 isn't very elegant, but it works as I intended. The simplest way
5182 to check that it worked correctly is to look in obj_dat.h and
5183 check the array nid_objs and make sure the objects haven't moved
5184 around (this is important!). Additions are OK, as well as
5185 consistent name changes.
5188 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5191 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5192 The given file adds to whatever has already been seeded into the
5193 random pool through the RANDFILE configuration file option or
5194 environment variable, or the default random state file.
5197 *) mkstack.pl now sorts each macro group into lexical order.
5198 Previously the output order depended on the order the files
5199 appeared in the directory, resulting in needless rewriting
5203 *) Patches to make OpenSSL compile under Win32 again. Mostly
5204 work arounds for the VC++ problem that it treats func() as
5205 func(void). Also stripped out the parts of mkdef.pl that
5206 added extra typesafe functions: these no longer exist.
5209 *) Reorganisation of the stack code. The macros are now all
5210 collected in safestack.h . Each macro is defined in terms of
5211 a "stack macro" of the form SKM_<name>(type, a, b). The
5212 DEBUG_SAFESTACK is now handled in terms of function casts,
5213 this has the advantage of retaining type safety without the
5214 use of additional functions. If DEBUG_SAFESTACK is not defined
5215 then the non typesafe macros are used instead. Also modified the
5216 mkstack.pl script to handle the new form. Needs testing to see
5217 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5218 the default if no major problems. Similar behaviour for ASN1_SET_OF
5219 and PKCS12_STACK_OF.
5222 *) When some versions of IIS use the 'NET' form of private key the
5223 key derivation algorithm is different. Normally MD5(password) is
5224 used as a 128 bit RC4 key. In the modified case
5225 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5226 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5227 as the old Netscape_RSA functions except they have an additional
5228 'sgckey' parameter which uses the modified algorithm. Also added
5229 an -sgckey command line option to the rsa utility. Thanks to
5230 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5231 algorithm to openssl-dev.
5234 *) The evp_local.h macros were using 'c.##kname' which resulted in
5235 invalid expansion on some systems (SCO 5.0.5 for example).
5236 Corrected to 'c.kname'.
5237 [Phillip Porch <root@theporch.com>]
5239 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5240 a STACK of email addresses from a certificate or request, these look
5241 in the subject name and the subject alternative name extensions and
5242 omit any duplicate addresses.
5245 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5246 This makes DSA verification about 2 % faster.
5249 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5250 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5251 plus overhead for 1024 bit moduli).
5252 This makes exponentiations about 0.5 % faster for 1024 bit
5253 exponents (as measured by "openssl speed rsa2048").
5256 *) Rename memory handling macros to avoid conflicts with other
5258 Malloc => OPENSSL_malloc
5259 Malloc_locked => OPENSSL_malloc_locked
5260 Realloc => OPENSSL_realloc
5261 Free => OPENSSL_free
5264 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5265 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5268 *) CygWin32 support.
5269 [John Jarvie <jjarvie@newsguy.com>]
5271 *) The type-safe stack code has been rejigged. It is now only compiled
5272 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5273 by default all type-specific stack functions are "#define"d back to
5274 standard stack functions. This results in more streamlined output
5275 but retains the type-safety checking possibilities of the original
5279 *) The STACK code has been cleaned up, and certain type declarations
5280 that didn't make a lot of sense have been brought in line. This has
5281 also involved a cleanup of sorts in safestack.h to more correctly
5282 map type-safe stack functions onto their plain stack counterparts.
5283 This work has also resulted in a variety of "const"ifications of
5284 lots of the code, especially "_cmp" operations which should normally
5285 be prototyped with "const" parameters anyway.
5288 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5289 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5290 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5291 where all of 'md' is used each time the PRNG is used, but 'state'
5292 is used only indexed by a cyclic counter. As entropy may not be
5293 well distributed from the beginning, 'md' is important as a
5294 chaining variable. However, the output function chains only half
5295 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5296 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5297 in all of 'state' being rewritten, with the new values depending
5298 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5301 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5302 the handshake is continued after ssl_verify_cert_chain();
5303 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5304 can lead to 'unexplainable' connection aborts later.
5305 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5307 *) Major EVP API cipher revision.
5308 Add hooks for extra EVP features. This allows various cipher
5309 parameters to be set in the EVP interface. Support added for variable
5310 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5311 setting of RC2 and RC5 parameters.
5313 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5316 Remove lots of duplicated code from the EVP library. For example *every*
5317 cipher init() function handles the 'iv' in the same way according to the
5318 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5319 for CFB and OFB modes they zero ctx->num.
5321 New functionality allows removal of S/MIME code RC2 hack.
5323 Most of the routines have the same form and so can be declared in terms
5326 By shifting this to the top level EVP_CipherInit() it can be removed from
5327 all individual ciphers. If the cipher wants to handle IVs or keys
5328 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5331 Change lots of functions like EVP_EncryptUpdate() to now return a
5332 value: although software versions of the algorithms cannot fail
5333 any installed hardware versions can.
5336 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5337 this option is set, tolerate broken clients that send the negotiated
5338 protocol version number instead of the requested protocol version
5342 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5343 i.e. non-zero for export ciphersuites, zero otherwise.
5344 Previous versions had this flag inverted, inconsistent with
5345 rsa_tmp_cb (..._TMP_RSA_CB).
5346 [Bodo Moeller; problem reported by Amit Chopra]
5348 *) Add missing DSA library text string. Work around for some IIS
5349 key files with invalid SEQUENCE encoding.
5352 *) Add a document (doc/standards.txt) that list all kinds of standards
5353 and so on that are implemented in OpenSSL.
5356 *) Enhance c_rehash script. Old version would mishandle certificates
5357 with the same subject name hash and wouldn't handle CRLs at all.
5358 Added -fingerprint option to crl utility, to support new c_rehash
5362 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5365 *) Fix for SSL server purpose checking. Server checking was
5366 rejecting certificates which had extended key usage present
5367 but no ssl client purpose.
5368 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5370 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5371 is a little unclear about how a blank password is handled.
5372 Since the password in encoded as a BMPString with terminating
5373 double NULL a zero length password would end up as just the
5374 double NULL. However no password at all is different and is
5375 handled differently in the PKCS#12 key generation code. NS
5376 treats a blank password as zero length. MSIE treats it as no
5377 password on export: but it will try both on import. We now do
5378 the same: PKCS12_parse() tries zero length and no password if
5379 the password is set to "" or NULL (NULL is now a valid password:
5380 it wasn't before) as does the pkcs12 application.
5383 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5384 perror when PEM_read_bio_X509_REQ fails, the error message must
5385 be obtained from the error queue.
5388 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5389 it in ERR_remove_state if appropriate, and change ERR_get_state
5390 accordingly to avoid race conditions (this is necessary because
5391 thread_hash is no longer constant once set).
5394 *) Bugfix for linux-elf makefile.one.
5397 *) RSA_get_default_method() will now cause a default
5398 RSA_METHOD to be chosen if one doesn't exist already.
5399 Previously this was only set during a call to RSA_new()
5400 or RSA_new_method(NULL) meaning it was possible for
5401 RSA_get_default_method() to return NULL.
5404 *) Added native name translation to the existing DSO code
5405 that will convert (if the flag to do so is set) filenames
5406 that are sufficiently small and have no path information
5407 into a canonical native form. Eg. "blah" converted to
5408 "libblah.so" or "blah.dll" etc.
5411 *) New function ERR_error_string_n(e, buf, len) which is like
5412 ERR_error_string(e, buf), but writes at most 'len' bytes
5413 including the 0 terminator. For ERR_error_string_n, 'buf'
5415 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5417 *) CONF library reworked to become more general. A new CONF
5418 configuration file reader "class" is implemented as well as a
5419 new functions (NCONF_*, for "New CONF") to handle it. The now
5420 old CONF_* functions are still there, but are reimplemented to
5421 work in terms of the new functions. Also, a set of functions
5422 to handle the internal storage of the configuration data is
5423 provided to make it easier to write new configuration file
5424 reader "classes" (I can definitely see something reading a
5425 configuration file in XML format, for example), called _CONF_*,
5426 or "the configuration storage API"...
5428 The new configuration file reading functions are:
5430 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5431 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5433 NCONF_default, NCONF_WIN32
5435 NCONF_dump_fp, NCONF_dump_bio
5437 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5438 NCONF_new creates a new CONF object. This works in the same way
5439 as other interfaces in OpenSSL, like the BIO interface.
5440 NCONF_dump_* dump the internal storage of the configuration file,
5441 which is useful for debugging. All other functions take the same
5442 arguments as the old CONF_* functions wth the exception of the
5443 first that must be a `CONF *' instead of a `LHASH *'.
5445 To make it easer to use the new classes with the old CONF_* functions,
5446 the function CONF_set_default_method is provided.
5449 *) Add '-tls1' option to 'openssl ciphers', which was already
5450 mentioned in the documentation but had not been implemented.
5451 (This option is not yet really useful because even the additional
5452 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5455 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5456 OpenSSL-based applications) load shared libraries and bind to
5457 them in a portable way.
5458 [Geoff Thorpe, with contributions from Richard Levitte]
5460 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5462 *) Make sure _lrotl and _lrotr are only used with MSVC.
5464 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5465 (the default implementation of RAND_status).
5467 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5468 to '-clrext' (= clear extensions), as intended and documented.
5469 [Bodo Moeller; inconsistency pointed out by Michael Attili
5472 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5473 was larger than the MD block size.
5474 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5476 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5477 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5478 using the passed key: if the passed key was a private key the result
5479 of X509_print(), for example, would be to print out all the private key
5483 *) des_quad_cksum() byte order bug fix.
5484 [Ulf Möller, using the problem description in krb4-0.9.7, where
5485 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5487 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5489 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5491 *) For easily testing in shell scripts whether some command
5492 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5493 returns with exit code 0 iff no command of the given name is available.
5494 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5495 the output goes to stdout and nothing is printed to stderr.
5496 Additional arguments are always ignored.
5498 Since for each cipher there is a command of the same name,
5499 the 'no-cipher' compilation switches can be tested this way.
5501 ('openssl no-XXX' is not able to detect pseudo-commands such
5502 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5505 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5508 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5509 is set; it will be thrown away anyway because each handshake creates
5511 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5512 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5513 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5514 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5517 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5518 'Q' and 'R' lose their special meanings (quit/renegotiate).
5519 This is part of what -quiet does; unlike -quiet, -ign_eof
5520 does not suppress any output.
5523 *) Add compatibility options to the purpose and trust code. The
5524 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5525 accepts a certificate or CA, this was the previous behaviour,
5526 with all the associated security issues.
5528 X509_TRUST_COMPAT is the old trust behaviour: only and
5529 automatically trust self signed roots in certificate store. A
5530 new trust setting X509_TRUST_DEFAULT is used to specify that
5531 a purpose has no associated trust setting and it should instead
5532 use the value in the default purpose.
5535 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5536 and fix a memory leak.
5539 *) In util/mkerr.pl (which implements 'make errors'), preserve
5540 reason strings from the previous version of the .c file, as
5541 the default to have only downcase letters (and digits) in
5542 automatically generated reasons codes is not always appropriate.
5545 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5546 using strerror. Previously, ERR_reason_error_string() returned
5547 library names as reason strings for SYSerr; but SYSerr is a special
5548 case where small numbers are errno values, not library numbers.
5551 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5552 converts DSA parameters into DH parameters. (When creating parameters,
5553 DSA_generate_parameters is used.)
5556 *) Include 'length' (recommended exponent length) in C code generated
5557 by 'openssl dhparam -C'.
5560 *) The second argument to set_label in perlasm was already being used
5561 so couldn't be used as a "file scope" flag. Moved to third argument
5565 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5566 instead of RAND_bytes for encryption IVs and salts.
5569 *) Include RAND_status() into RAND_METHOD instead of implementing
5570 it only for md_rand.c Otherwise replacing the PRNG by calling
5571 RAND_set_rand_method would be impossible.
5574 *) Don't let DSA_generate_key() enter an infinite loop if the random
5575 number generation fails.
5578 *) New 'rand' application for creating pseudo-random output.
5581 *) Added configuration support for Linux/IA64
5582 [Rolf Haberrecker <rolf@suse.de>]
5584 *) Assembler module support for Mingw32.
5587 *) Shared library support for HPUX (in shlib/).
5588 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5590 *) Shared library support for Solaris gcc.
5591 [Lutz Behnke <behnke@trustcenter.de>]
5593 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5595 *) PKCS7_encrypt() was adding text MIME headers twice because they
5596 were added manually and by SMIME_crlf_copy().
5599 *) In bntest.c don't call BN_rand with zero bits argument.
5600 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5602 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5603 case was implemented. This caused BN_div_recp() to fail occasionally.
5606 *) Add an optional second argument to the set_label() in the perl
5607 assembly language builder. If this argument exists and is set
5608 to 1 it signals that the assembler should use a symbol whose
5609 scope is the entire file, not just the current function. This
5610 is needed with MASM which uses the format label:: for this scope.
5611 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5613 *) Change the ASN1 types so they are typedefs by default. Before
5614 almost all types were #define'd to ASN1_STRING which was causing
5615 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5619 *) Change names of new functions to the new get1/get0 naming
5620 convention: After 'get1', the caller owns a reference count
5621 and has to call ..._free; 'get0' returns a pointer to some
5622 data structure without incrementing reference counters.
5623 (Some of the existing 'get' functions increment a reference
5624 counter, some don't.)
5625 Similarly, 'set1' and 'add1' functions increase reference
5626 counters or duplicate objects.
5629 *) Allow for the possibility of temp RSA key generation failure:
5630 the code used to assume it always worked and crashed on failure.
5633 *) Fix potential buffer overrun problem in BIO_printf().
5634 [Ulf Möller, using public domain code by Patrick Powell; problem
5635 pointed out by David Sacerdote <das33@cornell.edu>]
5637 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5638 RAND_egd() and RAND_status(). In the command line application,
5639 the EGD socket can be specified like a seed file using RANDFILE
5643 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5644 Some CAs (e.g. Verisign) distribute certificates in this form.
5647 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5648 list to exclude them. This means that no special compilation option
5649 is needed to use anonymous DH: it just needs to be included in the
5653 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5654 EVP_MD_type. The old functionality is available in a new macro called
5655 EVP_MD_md(). Change code that uses it and update docs.
5658 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5659 where the 'void *' argument is replaced by a function pointer argument.
5660 Previously 'void *' was abused to point to functions, which works on
5661 many platforms, but is not correct. As these functions are usually
5662 called by macros defined in OpenSSL header files, most source code
5663 should work without changes.
5666 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5667 sections with information on -D... compiler switches used for
5668 compiling the library so that applications can see them. To enable
5669 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5670 must be defined. E.g.,
5671 #define OPENSSL_ALGORITHM_DEFINES
5672 #include <openssl/opensslconf.h>
5673 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5674 [Richard Levitte, Ulf and Bodo Möller]
5676 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5680 *) Change the 'other' type in certificate aux info to a STACK_OF
5681 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5682 the required ASN1 format: arbitrary types determined by an OID.
5685 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5686 argument to 'req'. This is not because the function is newer or
5687 better than others it just uses the work 'NEW' in the certificate
5688 request header lines. Some software needs this.
5691 *) Reorganise password command line arguments: now passwords can be
5692 obtained from various sources. Delete the PEM_cb function and make
5693 it the default behaviour: i.e. if the callback is NULL and the
5694 usrdata argument is not NULL interpret it as a null terminated pass
5695 phrase. If usrdata and the callback are NULL then the pass phrase
5696 is prompted for as usual.
5699 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5700 the support is automatically enabled. The resulting binaries will
5701 autodetect the card and use it if present.
5702 [Ben Laurie and Compaq Inc.]
5704 *) Work around for Netscape hang bug. This sends certificate request
5705 and server done in one record. Since this is perfectly legal in the
5706 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5707 the bugs/SSLv3 entry for more info.
5710 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5713 *) Add -rand argument to smime and pkcs12 applications and read/write
5717 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5720 *) Add command line password options to the remaining applications.
5723 *) Bug fix for BN_div_recp() for numerators with an even number of
5727 *) More tests in bntest.c, and changed test_bn output.
5730 *) ./config recognizes MacOS X now.
5733 *) Bug fix for BN_div() when the first words of num and divsor are
5734 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5737 *) Add support for various broken PKCS#8 formats, and command line
5738 options to produce them.
5741 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5742 get temporary BIGNUMs from a BN_CTX.
5745 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5749 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5750 include a #define from the old name to the new. The original intent
5751 was that statically linked binaries could for example just call
5752 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5753 link with digests. This never worked becayse SSLeay_add_all_digests()
5754 and SSLeay_add_all_ciphers() were in the same source file so calling
5755 one would link with the other. They are now in separate source files.
5758 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5761 *) Use a less unusual form of the Miller-Rabin primality test (it used
5762 a binary algorithm for exponentiation integrated into the Miller-Rabin
5763 loop, our standard modexp algorithms are faster).
5766 *) Support for the EBCDIC character set completed.
5767 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5769 *) Source code cleanups: use const where appropriate, eliminate casts,
5770 use void * instead of char * in lhash.
5773 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5774 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5775 this the server could overwrite ephemeral keys that the client
5779 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5780 using 50 iterations of the Rabin-Miller test.
5782 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5783 iterations of the Rabin-Miller test as required by the appendix
5784 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5785 As BN_is_prime_fasttest includes trial division, DSA parameter
5786 generation becomes much faster.
5788 This implies a change for the callback functions in DSA_is_prime
5789 and DSA_generate_parameters: The callback function is called once
5790 for each positive witness in the Rabin-Miller test, not just
5791 occasionally in the inner loop; and the parameters to the
5792 callback function now provide an iteration count for the outer
5793 loop rather than for the current invocation of the inner loop.
5794 DSA_generate_parameters additionally can call the callback
5795 function with an 'iteration count' of -1, meaning that a
5796 candidate has passed the trial division test (when q is generated
5797 from an application-provided seed, trial division is skipped).
5800 *) New function BN_is_prime_fasttest that optionally does trial
5801 division before starting the Rabin-Miller test and has
5802 an additional BN_CTX * argument (whereas BN_is_prime always
5803 has to allocate at least one BN_CTX).
5804 'callback(1, -1, cb_arg)' is called when a number has passed the
5805 trial division stage.
5808 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5812 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5815 *) New function BN_pseudo_rand().
5818 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5819 bignum version of BN_from_montgomery() with the working code from
5820 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5824 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5825 made it impossible to use the same SSL_SESSION data structure in
5826 SSL2 clients in multiple threads.
5829 *) The return value of RAND_load_file() no longer counts bytes obtained
5830 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5831 to seed the PRNG (previously an explicit byte count was required).
5832 [Ulf Möller, Bodo Möller]
5834 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5835 used (char *) instead of (void *) and had casts all over the place.
5838 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5841 *) Retain source code compatibility for BN_prime_checks macro:
5842 BN_is_prime(..., BN_prime_checks, ...) now uses
5843 BN_prime_checks_for_size to determine the appropriate number of
5844 Rabin-Miller iterations.
5847 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5848 DH_CHECK_P_NOT_SAFE_PRIME.
5849 (Check if this is true? OpenPGP calls them "strong".)
5852 *) Merge the functionality of "dh" and "gendh" programs into a new program
5853 "dhparam". The old programs are retained for now but will handle DH keys
5854 (instead of parameters) in future.
5857 *) Make the ciphers, s_server and s_client programs check the return values
5858 when a new cipher list is set.
5861 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5862 ciphers. Before when the 56bit ciphers were enabled the sorting was
5865 The syntax for the cipher sorting has been extended to support sorting by
5866 cipher-strength (using the strength_bits hard coded in the tables).
5867 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5869 Fix a bug in the cipher-command parser: when supplying a cipher command
5870 string with an "undefined" symbol (neither command nor alphanumeric
5871 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5872 an error is flagged.
5874 Due to the strength-sorting extension, the code of the
5875 ssl_create_cipher_list() function was completely rearranged. I hope that
5876 the readability was also increased :-)
5877 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5879 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5880 for the first serial number and places 2 in the serial number file. This
5881 avoids problems when the root CA is created with serial number zero and
5882 the first user certificate has the same issuer name and serial number
5886 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5887 the new code. Add documentation for this stuff.
5890 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5891 X509_*() to X509at_*() on the grounds that they don't handle X509
5892 structures and behave in an analagous way to the X509v3 functions:
5893 they shouldn't be called directly but wrapper functions should be used
5896 So we also now have some wrapper functions that call the X509at functions
5897 when passed certificate requests. (TO DO: similar things can be done with
5898 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5899 things. Some of these need some d2i or i2d and print functionality
5900 because they handle more complex structures.)
5903 *) Add missing #ifndefs that caused missing symbols when building libssl
5904 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5905 NO_RSA in ssl/s2*.c.
5906 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5908 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5909 has a return value which indicates the quality of the random data
5910 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5911 error queue. New function RAND_pseudo_bytes() generates output that is
5912 guaranteed to be unique but not unpredictable. RAND_add is like
5913 RAND_seed, but takes an extra argument for an entropy estimate
5914 (RAND_seed always assumes full entropy).
5917 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5918 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5919 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5920 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5921 false-positive rate of at most 2^-80 for random input.
5924 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5927 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5928 in the 0.9.5 release), this returns the chain
5929 from an X509_CTX structure with a dup of the stack and all
5930 the X509 reference counts upped: so the stack will exist
5931 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5934 Also make SSL_SESSION_print() print out the verify return
5938 *) Add manpage for the pkcs12 command. Also change the default
5939 behaviour so MAC iteration counts are used unless the new
5940 -nomaciter option is used. This improves file security and
5941 only older versions of MSIE (4.0 for example) need it.
5944 *) Honor the no-xxx Configure options when creating .DEF files.
5947 *) Add PKCS#10 attributes to field table: challengePassword,
5948 unstructuredName and unstructuredAddress. These are taken from
5949 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5950 international characters are used.
5952 More changes to X509_ATTRIBUTE code: allow the setting of types
5953 based on strings. Remove the 'loc' parameter when adding
5954 attributes because these will be a SET OF encoding which is sorted
5958 *) Initial changes to the 'req' utility to allow request generation
5959 automation. This will allow an application to just generate a template
5960 file containing all the field values and have req construct the
5963 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5964 used all over the place including certificate requests and PKCS#7
5965 structures. They are currently handled manually where necessary with
5966 some primitive wrappers for PKCS#7. The new functions behave in a
5967 manner analogous to the X509 extension functions: they allow
5968 attributes to be looked up by NID and added.
5970 Later something similar to the X509V3 code would be desirable to
5971 automatically handle the encoding, decoding and printing of the
5972 more complex types. The string types like challengePassword can
5973 be handled by the string table functions.
5975 Also modified the multi byte string table handling. Now there is
5976 a 'global mask' which masks out certain types. The table itself
5977 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5978 is useful when for example there is only one permissible type
5979 (as in countryName) and using the mask might result in no valid
5983 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5984 SSL_get_peer_finished to allow applications to obtain the latest
5985 Finished messages sent to the peer or expected from the peer,
5986 respectively. (SSL_get_peer_finished is usually the Finished message
5987 actually received from the peer, otherwise the protocol will be aborted.)
5989 As the Finished message are message digests of the complete handshake
5990 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5991 be used for external authentication procedures when the authentication
5992 provided by SSL/TLS is not desired or is not enough.
5995 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5996 the host supports BWX extension and if Compaq C is present on the
5997 $PATH. Just exploiting of the BWX extension results in 20-30%
5998 performance kick for some algorithms, e.g. DES and RC4 to mention
5999 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6003 *) Add support for MS "fast SGC". This is arguably a violation of the
6004 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6005 weak crypto and after checking the certificate is SGC a second one
6006 with strong crypto. MS SGC stops the first handshake after receiving
6007 the server certificate message and sends a second client hello. Since
6008 a server will typically do all the time consuming operations before
6009 expecting any further messages from the client (server key exchange
6010 is the most expensive) there is little difference between the two.
6012 To get OpenSSL to support MS SGC we have to permit a second client
6013 hello message after we have sent server done. In addition we have to
6014 reset the MAC if we do get this second client hello.
6017 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6018 if a DER encoded private key is RSA or DSA traditional format. Changed
6019 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6020 format DER encoded private key. Newer code should use PKCS#8 format which
6021 has the key type encoded in the ASN1 structure. Added DER private key
6022 support to pkcs8 application.
6025 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6026 ciphersuites has been selected (as required by the SSL 3/TLS 1
6027 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6028 is set, we interpret this as a request to violate the specification
6029 (the worst that can happen is a handshake failure, and 'correct'
6030 behaviour would result in a handshake failure anyway).
6033 *) In SSL_CTX_add_session, take into account that there might be multiple
6034 SSL_SESSION structures with the same session ID (e.g. when two threads
6035 concurrently obtain them from an external cache).
6036 The internal cache can handle only one SSL_SESSION with a given ID,
6037 so if there's a conflict, we now throw out the old one to achieve
6041 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6042 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6043 some routines that use cipher OIDs: some ciphers do not have OIDs
6044 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6048 *) Simplify the trust setting structure and code. Now we just have
6049 two sequences of OIDs for trusted and rejected settings. These will
6050 typically have values the same as the extended key usage extension
6051 and any application specific purposes.
6053 The trust checking code now has a default behaviour: it will just
6054 check for an object with the same NID as the passed id. Functions can
6055 be provided to override either the default behaviour or the behaviour
6056 for a given id. SSL client, server and email already have functions
6057 in place for compatibility: they check the NID and also return "trusted"
6058 if the certificate is self signed.
6061 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6062 traditional format into an EVP_PKEY structure.
6065 *) Add a password callback function PEM_cb() which either prompts for
6066 a password if usr_data is NULL or otherwise assumes it is a null
6067 terminated password. Allow passwords to be passed on command line
6068 environment or config files in a few more utilities.
6071 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6072 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6073 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6074 Update documentation.
6077 *) Support for ASN1 "NULL" type. This could be handled before by using
6078 ASN1_TYPE but there wasn't any function that would try to read a NULL
6079 and produce an error if it couldn't. For compatibility we also have
6080 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6081 don't allocate anything because they don't need to.
6084 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6086 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6088 *) Rebuild of the memory allocation routines used by OpenSSL code and
6089 possibly others as well. The purpose is to make an interface that
6090 provide hooks so anyone can build a separate set of allocation and
6091 deallocation routines to be used by OpenSSL, for example memory
6092 pool implementations, or something else, which was previously hard
6093 since Malloc(), Realloc() and Free() were defined as macros having
6094 the values malloc, realloc and free, respectively (except for Win32
6095 compilations). The same is provided for memory debugging code.
6096 OpenSSL already comes with functionality to find memory leaks, but
6097 this gives people a chance to debug other memory problems.
6099 With these changes, a new set of functions and macros have appeared:
6101 CRYPTO_set_mem_debug_functions() [F]
6102 CRYPTO_get_mem_debug_functions() [F]
6103 CRYPTO_dbg_set_options() [F]
6104 CRYPTO_dbg_get_options() [F]
6105 CRYPTO_malloc_debug_init() [M]
6107 The memory debug functions are NULL by default, unless the library
6108 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6109 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6110 gives the standard debugging functions that come with OpenSSL) or
6111 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6112 provided by the library user) must be used. When the standard
6113 debugging functions are used, CRYPTO_dbg_set_options can be used to
6114 request additional information:
6115 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6116 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6118 Also, things like CRYPTO_set_mem_functions will always give the
6119 expected result (the new set of functions is used for allocation
6120 and deallocation) at all times, regardless of platform and compiler
6123 To finish it up, some functions that were never use in any other
6124 way than through macros have a new API and new semantic:
6127 CRYPTO_dbg_realloc()
6130 All macros of value have retained their old syntax.
6131 [Richard Levitte and Bodo Moeller]
6133 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6134 ordering of SMIMECapabilities wasn't in "strength order" and there
6135 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6139 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6140 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6141 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6143 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6144 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6145 functionality to handle multipart/signed properly) and a utility
6146 called 'smime' to call all this stuff. This is based on code I
6147 originally wrote for Celo who have kindly allowed it to be
6148 included in OpenSSL.
6151 *) Add variants des_set_key_checked and des_set_key_unchecked of
6152 des_set_key (aka des_key_sched). Global variable des_check_key
6153 decides which of these is called by des_set_key; this way
6154 des_check_key behaves as it always did, but applications and
6155 the library itself, which was buggy for des_check_key == 1,
6156 have a cleaner way to pick the version they need.
6159 *) New function PKCS12_newpass() which changes the password of a
6163 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6164 dynamic mix. In both cases the ids can be used as an index into the
6165 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6166 functions so they accept a list of the field values and the
6167 application doesn't need to directly manipulate the X509_TRUST
6171 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6175 *) Modify the way the V3 extension code looks up extensions. This now
6176 works in a similar way to the object code: we have some "standard"
6177 extensions in a static table which is searched with OBJ_bsearch()
6178 and the application can add dynamic ones if needed. The file
6179 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6180 updated whenever a new extension is added to the core code and kept
6181 in ext_nid order. There is a simple program 'tabtest.c' which checks
6182 this. New extensions are not added too often so this file can readily
6183 be maintained manually.
6185 There are two big advantages in doing things this way. The extensions
6186 can be looked up immediately and no longer need to be "added" using
6187 X509V3_add_standard_extensions(): this function now does nothing.
6188 [Side note: I get *lots* of email saying the extension code doesn't
6189 work because people forget to call this function]
6190 Also no dynamic allocation is done unless new extensions are added:
6191 so if we don't add custom extensions there is no need to call
6192 X509V3_EXT_cleanup().
6195 *) Modify enc utility's salting as follows: make salting the default. Add a
6196 magic header, so unsalted files fail gracefully instead of just decrypting
6197 to garbage. This is because not salting is a big security hole, so people
6198 should be discouraged from doing it.
6201 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6202 digest to be passed on the command line but it only used this
6203 parameter when signing a certificate. Modified so all relevant
6204 operations are affected by the digest parameter including the
6205 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6206 DSA key was used because it didn't fix the digest.
6209 *) Initial certificate chain verify code. Currently tests the untrusted
6210 certificates for consistency with the verify purpose (which is set
6211 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6213 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6214 this is because it will reject chains with invalid extensions whereas
6215 every previous version of OpenSSL and SSLeay made no checks at all.
6217 Trust code: checks the root CA for the relevant trust settings. Trust
6218 settings have an initial value consistent with the verify purpose: e.g.
6219 if the verify purpose is for SSL client use it expects the CA to be
6220 trusted for SSL client use. However the default value can be changed to
6221 permit custom trust settings: one example of this would be to only trust
6222 certificates from a specific "secure" set of CAs.
6224 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6225 which should be used for version portability: especially since the
6226 verify structure is likely to change more often now.
6228 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6229 to set them. If not set then assume SSL clients will verify SSL servers
6232 Two new options to the verify program: -untrusted allows a set of
6233 untrusted certificates to be passed in and -purpose which sets the
6234 intended purpose of the certificate. If a purpose is set then the
6235 new chain verify code is used to check extension consistency.
6238 *) Support for the authority information access extension.
6241 *) Modify RSA and DSA PEM read routines to transparently handle
6242 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6243 public keys in a format compatible with certificate
6244 SubjectPublicKeyInfo structures. Unfortunately there were already
6245 functions called *_PublicKey_* which used various odd formats so
6246 these are retained for compatibility: however the DSA variants were
6247 never in a public release so they have been deleted. Changed dsa/rsa
6248 utilities to handle the new format: note no releases ever handled public
6249 keys so we should be OK.
6251 The primary motivation for this change is to avoid the same fiasco
6252 that dogs private keys: there are several incompatible private key
6253 formats some of which are standard and some OpenSSL specific and
6254 require various evil hacks to allow partial transparent handling and
6255 even then it doesn't work with DER formats. Given the option anything
6256 other than PKCS#8 should be dumped: but the other formats have to
6257 stay in the name of compatibility.
6259 With public keys and the benefit of hindsight one standard format
6260 is used which works with EVP_PKEY, RSA or DSA structures: though
6261 it clearly returns an error if you try to read the wrong kind of key.
6263 Added a -pubkey option to the 'x509' utility to output the public key.
6264 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6265 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6266 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6267 that do the same as the EVP_PKEY_assign_*() except they up the
6268 reference count of the added key (they don't "swallow" the
6272 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6273 CRLs would fail if the file contained no certificates or no CRLs:
6274 added a new function to read in both types and return the number
6275 read: this means that if none are read it will be an error. The
6276 DER versions of the certificate and CRL reader would always fail
6277 because it isn't possible to mix certificates and CRLs in DER format
6278 without choking one or the other routine. Changed this to just read
6279 a certificate: this is the best we can do. Also modified the code
6280 in apps/verify.c to take notice of return codes: it was previously
6281 attempting to read in certificates from NULL pointers and ignoring
6282 any errors: this is one reason why the cert and CRL reader seemed
6283 to work. It doesn't check return codes from the default certificate
6284 routines: these may well fail if the certificates aren't installed.
6287 *) Code to support otherName option in GeneralName.
6290 *) First update to verify code. Change the verify utility
6291 so it warns if it is passed a self signed certificate:
6292 for consistency with the normal behaviour. X509_verify
6293 has been modified to it will now verify a self signed
6294 certificate if *exactly* the same certificate appears
6295 in the store: it was previously impossible to trust a
6296 single self signed certificate. This means that:
6297 openssl verify ss.pem
6298 now gives a warning about a self signed certificate but
6299 openssl verify -CAfile ss.pem ss.pem
6303 *) For servers, store verify_result in SSL_SESSION data structure
6304 (and add it to external session representation).
6305 This is needed when client certificate verifications fails,
6306 but an application-provided verification callback (set by
6307 SSL_CTX_set_cert_verify_callback) allows accepting the session
6308 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6309 but returns 1): When the session is reused, we have to set
6310 ssl->verify_result to the appropriate error code to avoid
6312 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6314 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6315 case in PKCS7_dataInit() where the signed PKCS7 structure
6316 didn't contain any existing data because it was being created.
6317 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6319 *) Add a salt to the key derivation routines in enc.c. This
6320 forms the first 8 bytes of the encrypted file. Also add a
6321 -S option to allow a salt to be input on the command line.
6324 *) New function X509_cmp(). Oddly enough there wasn't a function
6325 to compare two certificates. We do this by working out the SHA1
6326 hash and comparing that. X509_cmp() will be needed by the trust
6330 *) SSL_get1_session() is like SSL_get_session(), but increments
6331 the reference count in the SSL_SESSION returned.
6332 [Geoff Thorpe <geoff@eu.c2.net>]
6334 *) Fix for 'req': it was adding a null to request attributes.
6335 Also change the X509_LOOKUP and X509_INFO code to handle
6336 certificate auxiliary information.
6339 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6343 *) Add the possibility to add extra information to the memory leak
6344 detecting output, to form tracebacks, showing from where each
6345 allocation was originated: CRYPTO_push_info("constant string") adds
6346 the string plus current file name and line number to a per-thread
6347 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6348 is like calling CYRPTO_pop_info() until the stack is empty.
6349 Also updated memory leak detection code to be multi-thread-safe.
6352 *) Add options -text and -noout to pkcs7 utility and delete the
6353 encryption options which never did anything. Update docs.
6356 *) Add options to some of the utilities to allow the pass phrase
6357 to be included on either the command line (not recommended on
6358 OSes like Unix) or read from the environment. Update the
6359 manpages and fix a few bugs.
6362 *) Add a few manpages for some of the openssl commands.
6365 *) Fix the -revoke option in ca. It was freeing up memory twice,
6366 leaking and not finding already revoked certificates.
6369 *) Extensive changes to support certificate auxiliary information.
6370 This involves the use of X509_CERT_AUX structure and X509_AUX
6371 functions. An X509_AUX function such as PEM_read_X509_AUX()
6372 can still read in a certificate file in the usual way but it
6373 will also read in any additional "auxiliary information". By
6374 doing things this way a fair degree of compatibility can be
6375 retained: existing certificates can have this information added
6376 using the new 'x509' options.
6378 Current auxiliary information includes an "alias" and some trust
6379 settings. The trust settings will ultimately be used in enhanced
6380 certificate chain verification routines: currently a certificate
6381 can only be trusted if it is self signed and then it is trusted
6385 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6386 The problem was that one of the replacement routines had not been working
6387 since SSLeay releases. For now the offending routine has been replaced
6388 with non-optimised assembler. Even so, this now gives around 95%
6389 performance improvement for 1024 bit RSA signs.
6392 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6393 handling. Most clients have the effective key size in bits equal to
6394 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6395 A few however don't do this and instead use the size of the decrypted key
6396 to determine the RC2 key length and the AlgorithmIdentifier to determine
6397 the effective key length. In this case the effective key length can still
6398 be 40 bits but the key length can be 168 bits for example. This is fixed
6399 by manually forcing an RC2 key into the EVP_PKEY structure because the
6400 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6401 the key length and effective key length are equal.
6404 *) Add a bunch of functions that should simplify the creation of
6405 X509_NAME structures. Now you should be able to do:
6406 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6407 and have it automatically work out the correct field type and fill in
6408 the structures. The more adventurous can try:
6409 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6410 and it will (hopefully) work out the correct multibyte encoding.
6413 *) Change the 'req' utility to use the new field handling and multibyte
6414 copy routines. Before the DN field creation was handled in an ad hoc
6415 way in req, ca, and x509 which was rather broken and didn't support
6416 BMPStrings or UTF8Strings. Since some software doesn't implement
6417 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6418 using the dirstring_type option. See the new comment in the default
6419 openssl.cnf for more info.
6422 *) Make crypto/rand/md_rand.c more robust:
6423 - Assure unique random numbers after fork().
6424 - Make sure that concurrent threads access the global counter and
6425 md serializably so that we never lose entropy in them
6426 or use exactly the same state in multiple threads.
6427 Access to the large state is not always serializable because
6428 the additional locking could be a performance killer, and
6429 md should be large enough anyway.
6432 *) New file apps/app_rand.c with commonly needed functionality
6433 for handling the random seed file.
6435 Use the random seed file in some applications that previously did not:
6437 dsaparam -genkey (which also ignored its '-rand' option),
6440 x509 (when signing).
6441 Except on systems with /dev/urandom, it is crucial to have a random
6442 seed file at least for key creation, DSA signing, and for DH exchanges;
6443 for RSA signatures we could do without one.
6445 gendh and gendsa (unlike genrsa) used to read only the first byte
6446 of each file listed in the '-rand' option. The function as previously
6447 found in genrsa is now in app_rand.c and is used by all programs
6448 that support '-rand'.
6451 *) In RAND_write_file, use mode 0600 for creating files;
6452 don't just chmod when it may be too late.
6455 *) Report an error from X509_STORE_load_locations
6456 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6459 *) New function ASN1_mbstring_copy() this copies a string in either
6460 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6461 into an ASN1_STRING type. A mask of permissible types is passed
6462 and it chooses the "minimal" type to use or an error if not type
6466 *) Add function equivalents to the various macros in asn1.h. The old
6467 macros are retained with an M_ prefix. Code inside the library can
6468 use the M_ macros. External code (including the openssl utility)
6469 should *NOT* in order to be "shared library friendly".
6472 *) Add various functions that can check a certificate's extensions
6473 to see if it usable for various purposes such as SSL client,
6474 server or S/MIME and CAs of these types. This is currently
6475 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6476 verification. Also added a -purpose flag to x509 utility to
6477 print out all the purposes.
6480 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6484 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6485 for, obtain and decode and extension and obtain its critical flag.
6486 This allows all the necessary extension code to be handled in a
6487 single function call.
6490 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6491 platforms. See crypto/rc4/rc4_enc.c for further details.
6494 *) New -noout option to asn1parse. This causes no output to be produced
6495 its main use is when combined with -strparse and -out to extract data
6496 from a file (which may not be in ASN.1 format).
6499 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6500 when producing the local key id.
6501 [Richard Levitte <levitte@stacken.kth.se>]
6503 *) New option -dhparam in s_server. This allows a DH parameter file to be
6504 stated explicitly. If it is not stated then it tries the first server
6505 certificate file. The previous behaviour hard coded the filename
6509 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6510 a public key to be input or output. For example:
6511 openssl rsa -in key.pem -pubout -out pubkey.pem
6512 Also added necessary DSA public key functions to handle this.
6515 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6516 in the message. This was handled by allowing
6517 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6518 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6520 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6521 to the end of the strings whereas this didn't. This would cause problems
6522 if strings read with d2i_ASN1_bytes() were later modified.
6523 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6525 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6526 data and it contains EOF it will end up returning an error. This is
6527 caused by input 46 bytes long. The cause is due to the way base64
6528 BIOs find the start of base64 encoded data. They do this by trying a
6529 trial decode on each line until they find one that works. When they
6530 do a flag is set and it starts again knowing it can pass all the
6531 data directly through the decoder. Unfortunately it doesn't reset
6532 the context it uses. This means that if EOF is reached an attempt
6533 is made to pass two EOFs through the context and this causes the
6534 resulting error. This can also cause other problems as well. As is
6535 usual with these problems it takes *ages* to find and the fix is
6536 trivial: move one line.
6537 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6539 *) Ugly workaround to get s_client and s_server working under Windows. The
6540 old code wouldn't work because it needed to select() on sockets and the
6541 tty (for keypresses and to see if data could be written). Win32 only
6542 supports select() on sockets so we select() with a 1s timeout on the
6543 sockets and then see if any characters are waiting to be read, if none
6544 are present then we retry, we also assume we can always write data to
6545 the tty. This isn't nice because the code then blocks until we've
6546 received a complete line of data and it is effectively polling the
6547 keyboard at 1s intervals: however it's quite a bit better than not
6548 working at all :-) A dedicated Windows application might handle this
6549 with an event loop for example.
6552 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6553 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6554 will be called when RSA_sign() and RSA_verify() are used. This is useful
6555 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6556 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6557 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6558 This necessitated the support of an extra signature type NID_md5_sha1
6559 for SSL signatures and modifications to the SSL library to use it instead
6560 of calling RSA_public_decrypt() and RSA_private_encrypt().
6563 *) Add new -verify -CAfile and -CApath options to the crl program, these
6564 will lookup a CRL issuers certificate and verify the signature in a
6565 similar way to the verify program. Tidy up the crl program so it
6566 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6567 less strict. It will now permit CRL extensions even if it is not
6568 a V2 CRL: this will allow it to tolerate some broken CRLs.
6571 *) Initialize all non-automatic variables each time one of the openssl
6572 sub-programs is started (this is necessary as they may be started
6573 multiple times from the "OpenSSL>" prompt).
6574 [Lennart Bang, Bodo Moeller]
6576 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6577 removing all other RSA functionality (this is what NO_RSA does). This
6578 is so (for example) those in the US can disable those operations covered
6579 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6583 *) Non-copying interface to BIO pairs.
6584 (still largely untested)
6587 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6588 ASCII string. This was handled independently in various places before.
6591 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6592 UTF8 strings a character at a time.
6595 *) Use client_version from client hello to select the protocol
6596 (s23_srvr.c) and for RSA client key exchange verification
6597 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6600 *) Add various utility functions to handle SPKACs, these were previously
6601 handled by poking round in the structure internals. Added new function
6602 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6603 print, verify and generate SPKACs. Based on an original idea from
6604 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6607 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6610 *) Allow the config file extension section to be overwritten on the
6611 command line. Based on an original idea from Massimiliano Pala
6612 <madwolf@comune.modena.it>. The new option is called -extensions
6613 and can be applied to ca, req and x509. Also -reqexts to override
6614 the request extensions in req and -crlexts to override the crl extensions
6618 *) Add new feature to the SPKAC handling in ca. Now you can include
6619 the same field multiple times by preceding it by "XXXX." for example:
6622 this is the same syntax as used in the req config file.
6625 *) Allow certificate extensions to be added to certificate requests. These
6626 are specified in a 'req_extensions' option of the req section of the
6627 config file. They can be printed out with the -text option to req but
6628 are otherwise ignored at present.
6631 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6632 data read consists of only the final block it would not decrypted because
6633 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6634 A misplaced 'break' also meant the decrypted final block might not be
6635 copied until the next read.
6638 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6639 a few extra parameters to the DH structure: these will be useful if
6640 for example we want the value of 'q' or implement X9.42 DH.
6643 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6644 provides hooks that allow the default DSA functions or functions on a
6645 "per key" basis to be replaced. This allows hardware acceleration and
6646 hardware key storage to be handled without major modification to the
6647 library. Also added low level modexp hooks and CRYPTO_EX structure and
6648 associated functions.
6651 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6652 as "read only": it can't be written to and the buffer it points to will
6653 not be freed. Reading from a read only BIO is much more efficient than
6654 a normal memory BIO. This was added because there are several times when
6655 an area of memory needs to be read from a BIO. The previous method was
6656 to create a memory BIO and write the data to it, this results in two
6657 copies of the data and an O(n^2) reading algorithm. There is a new
6658 function BIO_new_mem_buf() which creates a read only memory BIO from
6659 an area of memory. Also modified the PKCS#7 routines to use read only
6663 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6664 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6665 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6666 but a retry condition occured while trying to read the rest.
6669 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6670 NID_pkcs7_encrypted by default: this was wrong since this should almost
6671 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6672 the encrypted data type: this is a more sensible place to put it and it
6673 allows the PKCS#12 code to be tidied up that duplicated this
6677 *) Changed obj_dat.pl script so it takes its input and output files on
6678 the command line. This should avoid shell escape redirection problems
6682 *) Initial support for certificate extension requests, these are included
6683 in things like Xenroll certificate requests. Included functions to allow
6684 extensions to be obtained and added.
6687 *) -crlf option to s_client and s_server for sending newlines as
6688 CRLF (as required by many protocols).
6691 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6693 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6694 [Ralf S. Engelschall]
6696 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6697 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6699 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6703 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6704 DH parameters/keys (q is lost during that conversion, but the resulting
6705 DH parameters contain its length).
6707 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6708 much faster than DH_generate_parameters (which creates parameters
6709 where p = 2*q + 1), and also the smaller q makes DH computations
6710 much more efficient (160-bit exponentiation instead of 1024-bit
6711 exponentiation); so this provides a convenient way to support DHE
6712 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6713 utter importance to use
6714 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6716 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6717 when such DH parameters are used, because otherwise small subgroup
6718 attacks may become possible!
6721 *) Avoid memory leak in i2d_DHparams.
6724 *) Allow the -k option to be used more than once in the enc program:
6725 this allows the same encrypted message to be read by multiple recipients.
6728 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6729 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6730 it will always use the numerical form of the OID, even if it has a short
6734 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6735 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6736 otherwise bn_mod_exp was called. In the case of hardware keys for example
6737 no private key components need be present and it might store extra data
6738 in the RSA structure, which cannot be accessed from bn_mod_exp.
6739 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6740 private key operations.
6743 *) Added support for SPARC Linux.
6746 *) pem_password_cb function type incompatibly changed from
6747 typedef int pem_password_cb(char *buf, int size, int rwflag);
6749 ....(char *buf, int size, int rwflag, void *userdata);
6750 so that applications can pass data to their callbacks:
6751 The PEM[_ASN1]_{read,write}... functions and macros now take an
6752 additional void * argument, which is just handed through whenever
6753 the password callback is called.
6754 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6756 New function SSL_CTX_set_default_passwd_cb_userdata.
6758 Compatibility note: As many C implementations push function arguments
6759 onto the stack in reverse order, the new library version is likely to
6760 interoperate with programs that have been compiled with the old
6761 pem_password_cb definition (PEM_whatever takes some data that
6762 happens to be on the stack as its last argument, and the callback
6763 just ignores this garbage); but there is no guarantee whatsoever that
6766 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6767 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6768 problems not only on Windows, but also on some Unix platforms.
6769 To avoid problematic command lines, these definitions are now in an
6770 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6771 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6774 *) MIPS III/IV assembler module is reimplemented.
6777 *) More DES library cleanups: remove references to srand/rand and
6778 delete an unused file.
6781 *) Add support for the the free Netwide assembler (NASM) under Win32,
6782 since not many people have MASM (ml) and it can be hard to obtain.
6783 This is currently experimental but it seems to work OK and pass all
6784 the tests. Check out INSTALL.W32 for info.
6787 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6788 without temporary keys kept an extra copy of the server key,
6789 and connections with temporary keys did not free everything in case
6793 *) New function RSA_check_key and new openssl rsa option -check
6794 for verifying the consistency of RSA keys.
6795 [Ulf Moeller, Bodo Moeller]
6797 *) Various changes to make Win32 compile work:
6798 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6799 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6800 comparison" warnings.
6801 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6804 *) Add a debugging option to PKCS#5 v2 key generation function: when
6805 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6806 derived keys are printed to stderr.
6809 *) Copy the flags in ASN1_STRING_dup().
6810 [Roman E. Pavlov <pre@mo.msk.ru>]
6812 *) The x509 application mishandled signing requests containing DSA
6813 keys when the signing key was also DSA and the parameters didn't match.
6815 It was supposed to omit the parameters when they matched the signing key:
6816 the verifying software was then supposed to automatically use the CA's
6817 parameters if they were absent from the end user certificate.
6819 Omitting parameters is no longer recommended. The test was also
6820 the wrong way round! This was probably due to unusual behaviour in
6821 EVP_cmp_parameters() which returns 1 if the parameters match.
6822 This meant that parameters were omitted when they *didn't* match and
6823 the certificate was useless. Certificates signed with 'ca' didn't have
6825 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6827 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6828 The interface is as follows:
6829 Applications can use
6830 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6831 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6832 "off" is now the default.
6833 The library internally uses
6834 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6835 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6836 to disable memory-checking temporarily.
6838 Some inconsistent states that previously were possible (and were
6839 even the default) are now avoided.
6841 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6842 with each memory chunk allocated; this is occasionally more helpful
6843 than just having a counter.
6845 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6847 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6851 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6852 which largely parallels "options", but is for changing API behaviour,
6853 whereas "options" are about protocol behaviour.
6854 Initial "mode" flags are:
6856 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6857 a single record has been written.
6858 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6859 retries use the same buffer location.
6860 (But all of the contents must be
6864 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6867 *) Fix problems with no-hmac etc.
6868 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6870 *) New functions RSA_get_default_method(), RSA_set_method() and
6871 RSA_get_method(). These allows replacement of RSA_METHODs without having
6872 to mess around with the internals of an RSA structure.
6875 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6876 Also really enable memory leak checks in openssl.c and in some
6878 [Chad C. Mulligan, Bodo Moeller]
6880 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6881 up the length of negative integers. This has now been simplified to just
6882 store the length when it is first determined and use it later, rather
6883 than trying to keep track of where data is copied and updating it to
6885 [Steve Henson, reported by Brien Wheeler
6886 <bwheeler@authentica-security.com>]
6888 *) Add a new function PKCS7_signatureVerify. This allows the verification
6889 of a PKCS#7 signature but with the signing certificate passed to the
6890 function itself. This contrasts with PKCS7_dataVerify which assumes the
6891 certificate is present in the PKCS#7 structure. This isn't always the
6892 case: certificates can be omitted from a PKCS#7 structure and be
6893 distributed by "out of band" means (such as a certificate database).
6896 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6897 function prototypes in pem.h, also change util/mkdef.pl to add the
6898 necessary function names.
6901 *) mk1mf.pl (used by Windows builds) did not properly read the
6902 options set by Configure in the top level Makefile, and Configure
6903 was not even able to write more than one option correctly.
6904 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6907 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6908 file to be loaded from a BIO or FILE pointer. The BIO version will
6909 for example allow memory BIOs to contain config info.
6912 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6913 Whoever hopes to achieve shared-library compatibility across versions
6914 must use this, not the compile-time macro.
6915 (Exercise 0.9.4: Which is the minimum library version required by
6917 Note: All this applies only to multi-threaded programs, others don't
6921 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6922 through a BIO pair triggered the default case, i.e.
6923 SSLerr(...,SSL_R_UNKNOWN_STATE).
6926 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6927 can use the SSL library even if none of the specific BIOs is
6931 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6932 for the encoded length.
6933 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6935 *) Add initial documentation of the X509V3 functions.
6938 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6939 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6940 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6941 secure PKCS#8 private key format with a high iteration count.
6944 *) Fix determination of Perl interpreter: A perl or perl5
6945 _directory_ in $PATH was also accepted as the interpreter.
6946 [Ralf S. Engelschall]
6948 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6949 wrong with it but it was very old and did things like calling
6950 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6954 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6955 to use the new extension code.
6958 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6959 with macros. This should make it easier to change their form, add extra
6960 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6964 *) Add to configuration table a new entry that can specify an alternative
6965 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6966 according to Mark Crispin <MRC@Panda.COM>.
6970 *) DES CBC did not update the IV. Weird.
6973 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6974 Changing the behaviour of the former might break existing programs --
6975 where IV updating is needed, des_ncbc_encrypt can be used.
6978 *) When bntest is run from "make test" it drives bc to check its
6979 calculations, as well as internally checking them. If an internal check
6980 fails, it needs to cause bc to give a non-zero result or make test carries
6981 on without noticing the failure. Fixed.
6984 *) DES library cleanups.
6987 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6988 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6989 ciphers. NOTE: although the key derivation function has been verified
6990 against some published test vectors it has not been extensively tested
6991 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6995 *) Instead of "mkdir -p", which is not fully portable, use new
6996 Perl script "util/mkdir-p.pl".
6999 *) Rewrite the way password based encryption (PBE) is handled. It used to
7000 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7001 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7002 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7003 the 'parameter' field of the AlgorithmIdentifier is passed to the
7004 underlying key generation function so it must do its own ASN1 parsing.
7005 This has also changed the EVP_PBE_CipherInit() function which now has a
7006 'parameter' argument instead of literal salt and iteration count values
7007 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7010 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7011 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7012 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7013 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7014 value was just used as a "magic string" and not used directly its
7015 value doesn't matter.
7018 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7022 *) "linux-sparc64" configuration (ultrapenguin).
7023 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7024 "linux-sparc" configuration.
7025 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7027 *) config now generates no-xxx options for missing ciphers.
7030 *) Support the EBCDIC character set (work in progress).
7031 File ebcdic.c not yet included because it has a different license.
7032 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7034 *) Support BS2000/OSD-POSIX.
7035 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7037 *) Make callbacks for key generation use void * instead of char *.
7040 *) Make S/MIME samples compile (not yet tested).
7043 *) Additional typesafe stacks.
7046 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7050 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7052 *) New configuration variant "sco5-gcc".
7054 *) Updated some demos.
7055 [Sean O Riordain, Wade Scholine]
7057 *) Add missing BIO_free at exit of pkcs12 application.
7060 *) Fix memory leak in conf.c.
7063 *) Updates for Win32 to assembler version of MD5.
7066 *) Set #! path to perl in apps/der_chop to where we found it
7067 instead of using a fixed path.
7070 *) SHA library changes for irix64-mips4-cc.
7073 *) Improvements for VMS support.
7077 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7079 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7080 This also avoids the problems with SC4.2 and unpatched SC5.
7081 [Andy Polyakov <appro@fy.chalmers.se>]
7083 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7084 These are required because of the typesafe stack would otherwise break
7085 existing code. If old code used a structure member which used to be STACK
7086 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7087 sk_num or sk_value it would produce an error because the num, data members
7088 are not present in STACK_OF. Now it just produces a warning. sk_set
7089 replaces the old method of assigning a value to sk_value
7090 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7091 that does this will no longer work (and should use sk_set instead) but
7092 this could be regarded as a "questionable" behaviour anyway.
7095 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7096 correctly handle encrypted S/MIME data.
7099 *) Change type of various DES function arguments from des_cblock
7100 (which means, in function argument declarations, pointer to char)
7101 to des_cblock * (meaning pointer to array with 8 char elements),
7102 which allows the compiler to do more typechecking; it was like
7103 that back in SSLeay, but with lots of ugly casts.
7105 Introduce new type const_des_cblock.
7108 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7109 problems: find RecipientInfo structure that matches recipient certificate
7110 and initialise the ASN1 structures properly based on passed cipher.
7113 *) Belatedly make the BN tests actually check the results.
7116 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7117 to and from BNs: it was completely broken. New compilation option
7118 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7119 key elements as negative integers.
7122 *) Reorganize and speed up MD5.
7123 [Andy Polyakov <appro@fy.chalmers.se>]
7126 [Richard Levitte <richard@levitte.org>]
7128 *) New option -out to asn1parse to allow the parsed structure to be
7129 output to a file. This is most useful when combined with the -strparse
7130 option to examine the output of things like OCTET STRINGS.
7133 *) Make SSL library a little more fool-proof by not requiring any longer
7134 that SSL_set_{accept,connect}_state be called before
7135 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7136 in many applications because usually everything *appeared* to work as
7137 intended anyway -- now it really works as intended).
7140 *) Move openssl.cnf out of lib/.
7143 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7144 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7145 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7146 [Ralf S. Engelschall]
7148 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7149 handle PKCS#7 enveloped data properly.
7150 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7152 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7153 copying pointers. The cert_st handling is changed by this in
7154 various ways (and thus what used to be known as ctx->default_cert
7155 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7156 any longer when s->cert does not give us what we need).
7157 ssl_cert_instantiate becomes obsolete by this change.
7158 As soon as we've got the new code right (possibly it already is?),
7159 we have solved a couple of bugs of the earlier code where s->cert
7160 was used as if it could not have been shared with other SSL structures.
7162 Note that using the SSL API in certain dirty ways now will result
7163 in different behaviour than observed with earlier library versions:
7164 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7165 does not influence s as it used to.
7167 In order to clean up things more thoroughly, inside SSL_SESSION
7168 we don't use CERT any longer, but a new structure SESS_CERT
7169 that holds per-session data (if available); currently, this is
7170 the peer's certificate chain and, for clients, the server's certificate
7171 and temporary key. CERT holds only those values that can have
7172 meaningful defaults in an SSL_CTX.
7175 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7176 from the internal representation. Various PKCS#7 fixes: remove some
7177 evil casts and set the enc_dig_alg field properly based on the signing
7181 *) Allow PKCS#12 password to be set from the command line or the
7182 environment. Let 'ca' get its config file name from the environment
7183 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7187 *) Allow certificate policies extension to use an IA5STRING for the
7188 organization field. This is contrary to the PKIX definition but
7189 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7193 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7194 without disallowing inline assembler and the like for non-pedantic builds.
7197 *) Support Borland C++ builder.
7198 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7203 *) SHA-1 cleanups and performance enhancements.
7204 [Andy Polyakov <appro@fy.chalmers.se>]
7206 *) Sparc v8plus assembler for the bignum library.
7207 [Andy Polyakov <appro@fy.chalmers.se>]
7209 *) Accept any -xxx and +xxx compiler options in Configure.
7212 *) Update HPUX configuration.
7215 *) Add missing sk_<type>_unshift() function to safestack.h
7216 [Ralf S. Engelschall]
7218 *) New function SSL_CTX_use_certificate_chain_file that sets the
7219 "extra_cert"s in addition to the certificate. (This makes sense
7220 only for "PEM" format files, as chains as a whole are not
7224 *) Support verify_depth from the SSL API.
7225 x509_vfy.c had what can be considered an off-by-one-error:
7226 Its depth (which was not part of the external interface)
7227 was actually counting the number of certificates in a chain;
7228 now it really counts the depth.
7231 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7232 instead of X509err, which often resulted in confusing error
7233 messages since the error codes are not globally unique
7234 (e.g. an alleged error in ssl3_accept when a certificate
7235 didn't match the private key).
7237 *) New function SSL_CTX_set_session_id_context that allows to set a default
7238 value (so that you don't need SSL_set_session_id_context for each
7239 connection using the SSL_CTX).
7242 *) OAEP decoding bug fix.
7245 *) Support INSTALL_PREFIX for package builders, as proposed by
7249 *) New Configure options "threads" and "no-threads". For systems
7250 where the proper compiler options are known (currently Solaris
7251 and Linux), "threads" is the default.
7254 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7257 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7258 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7259 such as /usr/local/bin.
7262 *) "make linux-shared" to build shared libraries.
7263 [Niels Poppe <niels@netbox.org>]
7265 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7268 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7269 extension adding in x509 utility.
7272 *) Remove NOPROTO sections and error code comments.
7275 *) Partial rewrite of the DEF file generator to now parse the ANSI
7279 *) New Configure options --prefix=DIR and --openssldir=DIR.
7282 *) Complete rewrite of the error code script(s). It is all now handled
7283 by one script at the top level which handles error code gathering,
7284 header rewriting and C source file generation. It should be much better
7285 than the old method: it now uses a modified version of Ulf's parser to
7286 read the ANSI prototypes in all header files (thus the old K&R definitions
7287 aren't needed for error creation any more) and do a better job of
7288 translating function codes into names. The old 'ASN1 error code imbedded
7289 in a comment' is no longer necessary and it doesn't use .err files which
7290 have now been deleted. Also the error code call doesn't have to appear all
7291 on one line (which resulted in some large lines...).
7294 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7297 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7298 0 (which usually indicates a closed connection), but continue reading.
7301 *) Fix some race conditions.
7304 *) Add support for CRL distribution points extension. Add Certificate
7305 Policies and CRL distribution points documentation.
7308 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7311 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7312 8 of keying material. Merlin has also confirmed interop with this fix
7313 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7314 [Merlin Hughes <merlin@baltimore.ie>]
7316 *) Fix lots of warnings.
7317 [Richard Levitte <levitte@stacken.kth.se>]
7319 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7320 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7321 [Richard Levitte <levitte@stacken.kth.se>]
7323 *) Fix problems with sizeof(long) == 8.
7324 [Andy Polyakov <appro@fy.chalmers.se>]
7326 *) Change functions to ANSI C.
7329 *) Fix typos in error codes.
7330 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7332 *) Remove defunct assembler files from Configure.
7335 *) SPARC v8 assembler BIGNUM implementation.
7336 [Andy Polyakov <appro@fy.chalmers.se>]
7338 *) Support for Certificate Policies extension: both print and set.
7339 Various additions to support the r2i method this uses.
7342 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7343 return a const string when you are expecting an allocated buffer.
7346 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7347 types DirectoryString and DisplayText.
7350 *) Add code to allow r2i extensions to access the configuration database,
7351 add an LHASH database driver and add several ctx helper functions.
7354 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7355 fail when they extended the size of a BIGNUM.
7358 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7359 support typesafe stack.
7362 *) Fix typo in SSL_[gs]et_options().
7363 [Nils Frostberg <nils@medcom.se>]
7365 *) Delete various functions and files that belonged to the (now obsolete)
7366 old X509V3 handling code.
7369 *) New Configure option "rsaref".
7372 *) Don't auto-generate pem.h.
7375 *) Introduce type-safe ASN.1 SETs.
7378 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7379 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7381 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7382 that links with OpenSSL (well at least cause lots of warnings), but fear
7383 not: the conversion is trivial, and it eliminates loads of evil casts. A
7384 few STACKed things have been converted already. Feel free to convert more.
7385 In the fullness of time, I'll do away with the STACK type altogether.
7388 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7389 specified in <certfile> by updating the entry in the index.txt file.
7390 This way one no longer has to edit the index.txt file manually for
7391 revoking a certificate. The -revoke option does the gory details now.
7392 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7394 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7395 `-text' option at all and this way the `-noout -text' combination was
7396 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7397 [Ralf S. Engelschall]
7399 *) Make sure a corresponding plain text error message exists for the
7400 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7401 verify callback function determined that a certificate was revoked.
7402 [Ralf S. Engelschall]
7404 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7405 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7406 all available cipers including rc5, which was forgotten until now.
7407 In order to let the testing shell script know which algorithms
7408 are available, a new (up to now undocumented) command
7409 "openssl list-cipher-commands" is used.
7412 *) Bugfix: s_client occasionally would sleep in select() when
7413 it should have checked SSL_pending() first.
7416 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7417 the raw DSA values prior to ASN.1 encoding.
7420 *) Tweaks to Configure
7421 [Niels Poppe <niels@netbox.org>]
7423 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7427 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7430 *) New config option to avoid instructions that are illegal on the 80386.
7431 The default code is faster, but requires at least a 486.
7434 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7435 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7436 same as SSL2_VERSION anyway.
7439 *) New "-showcerts" option for s_client.
7442 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7443 application. Various cleanups and fixes.
7446 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7447 modify error routines to work internally. Add error codes and PBE init
7448 to library startup routines.
7451 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7452 packing functions to asn1 and evp. Changed function names and error
7453 codes along the way.
7456 *) PKCS12 integration: and so it begins... First of several patches to
7457 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7458 objects to objects.h
7461 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7462 and display support for Thawte strong extranet extension.
7465 *) Add LinuxPPC support.
7466 [Jeff Dubrule <igor@pobox.org>]
7468 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7469 bn_div_words in alpha.s.
7470 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7472 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7473 OAEP isn't supported when OpenSSL is built with RSAref.
7474 [Ulf Moeller <ulf@fitug.de>]
7476 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7477 so they no longer are missing under -DNOPROTO.
7478 [Soren S. Jorvang <soren@t.dk>]
7481 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7483 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7484 doesn't work when the session is reused. Coming soon!
7487 *) Fix a security hole, that allows sessions to be reused in the wrong
7488 context thus bypassing client cert protection! All software that uses
7489 client certs and session caches in multiple contexts NEEDS PATCHING to
7490 allow session reuse! A fuller solution is in the works.
7491 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7493 *) Some more source tree cleanups (removed obsolete files
7494 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7495 permission on "config" script to be executable) and a fix for the INSTALL
7497 [Ulf Moeller <ulf@fitug.de>]
7499 *) Remove some legacy and erroneous uses of malloc, free instead of
7501 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7503 *) Make rsa_oaep_test return non-zero on error.
7504 [Ulf Moeller <ulf@fitug.de>]
7506 *) Add support for native Solaris shared libraries. Configure
7507 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7508 if someone would make that last step automatic.
7509 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7511 *) ctx_size was not built with the right compiler during "make links". Fixed.
7514 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7515 except NULL ciphers". This means the default cipher list will no longer
7516 enable NULL ciphers. They need to be specifically enabled e.g. with
7517 the string "DEFAULT:eNULL".
7520 *) Fix to RSA private encryption routines: if p < q then it would
7521 occasionally produce an invalid result. This will only happen with
7522 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7525 *) Be less restrictive and allow also `perl util/perlpath.pl
7526 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7527 because this way one can also use an interpreter named `perl5' (which is
7528 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7529 installed as `perl').
7530 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7532 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7533 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7535 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7536 advapi32.lib to Win32 build and change the pem test comparision
7537 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7538 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7539 and crypto/des/ede_cbcm_enc.c.
7542 *) DES quad checksum was broken on big-endian architectures. Fixed.
7545 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7546 Win32 test batch file so it (might) work again. The Win32 test batch file
7547 is horrible: I feel ill....
7550 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7551 in e_os.h. Audit of header files to check ANSI and non ANSI
7552 sections: 10 functions were absent from non ANSI section and not exported
7553 from Windows DLLs. Fixed up libeay.num for new functions.
7556 *) Make `openssl version' output lines consistent.
7557 [Ralf S. Engelschall]
7559 *) Fix Win32 symbol export lists for BIO functions: Added
7560 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7561 to ms/libeay{16,32}.def.
7562 [Ralf S. Engelschall]
7564 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7565 fine under Unix and passes some trivial tests I've now added. But the
7566 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7567 added to make sure no one expects that this stuff really works in the
7568 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7569 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7571 [Ralf S. Engelschall]
7573 *) Fix the generation of two part addresses in perl.
7574 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7576 *) Add config entry for Linux on MIPS.
7577 [John Tobey <jtobey@channel1.com>]
7579 *) Make links whenever Configure is run, unless we are on Windoze.
7582 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7583 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7587 *) Add a useful kludge to allow package maintainers to specify compiler and
7588 other platforms details on the command line without having to patch the
7589 Configure script everytime: One now can use ``perl Configure
7590 <id>:<details>'', i.e. platform ids are allowed to have details appended
7591 to them (seperated by colons). This is treated as there would be a static
7592 pre-configured entry in Configure's %table under key <id> with value
7593 <details> and ``perl Configure <id>'' is called. So, when you want to
7594 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7595 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7596 now, which overrides the FreeBSD-elf entry on-the-fly.
7597 [Ralf S. Engelschall]
7599 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7602 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7603 on the `perl Configure ...' command line. This way one can compile
7604 OpenSSL libraries with Position Independent Code (PIC) which is needed
7605 for linking it into DSOs.
7606 [Ralf S. Engelschall]
7608 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7612 *) Cleaned up the LICENSE document: The official contact for any license
7613 questions now is the OpenSSL core team under openssl-core@openssl.org.
7614 And add a paragraph about the dual-license situation to make sure people
7615 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7616 to the OpenSSL toolkit.
7617 [Ralf S. Engelschall]
7619 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7620 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7621 Additonally cleaned up the `make links' target: Remove unnecessary
7622 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7623 to speed processing and no longer clutter the display with confusing
7624 stuff. Instead only the actually done links are displayed.
7625 [Ralf S. Engelschall]
7627 *) Permit null encryption ciphersuites, used for authentication only. It used
7628 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7629 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7633 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7634 signed attributes when verifying signatures (this would break them),
7635 the detached data encoding was wrong and public keys obtained using
7636 X509_get_pubkey() weren't freed.
7639 *) Add text documentation for the BUFFER functions. Also added a work around
7640 to a Win95 console bug. This was triggered by the password read stuff: the
7641 last character typed gets carried over to the next fread(). If you were
7642 generating a new cert request using 'req' for example then the last
7643 character of the passphrase would be CR which would then enter the first
7647 *) Added the new `Includes OpenSSL Cryptography Software' button as
7648 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7649 button and can be used by applications based on OpenSSL to show the
7650 relationship to the OpenSSL project.
7651 [Ralf S. Engelschall]
7653 *) Remove confusing variables in function signatures in files
7654 ssl/ssl_lib.c and ssl/ssl.h.
7655 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7657 *) Don't install bss_file.c under PREFIX/include/
7658 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7660 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7661 functions that return function pointers and has support for NT specific
7662 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7663 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7664 unsigned to signed types: this was killing the Win32 compile.
7667 *) Add new certificate file to stack functions,
7668 SSL_add_dir_cert_subjects_to_stack() and
7669 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7670 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7671 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7672 This means that Apache-SSL and similar packages don't have to mess around
7673 to add as many CAs as they want to the preferred list.
7676 *) Experiment with doxygen documentation. Currently only partially applied to
7678 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7679 openssl.doxy as the configuration file.
7682 *) Get rid of remaining C++-style comments which strict C compilers hate.
7683 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7685 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7686 compiled in by default: it has problems with large keys.
7689 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7690 DH private keys and/or callback functions which directly correspond to
7691 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7692 is needed for applications which have to configure certificates on a
7693 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7695 For the RSA certificate situation is makes no difference, but
7696 for the DSA certificate situation this fixes the "no shared cipher"
7697 problem where the OpenSSL cipher selection procedure failed because the
7698 temporary keys were not overtaken from the context and the API provided
7699 no way to reconfigure them.
7700 The new functions now let applications reconfigure the stuff and they
7701 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7702 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7703 non-public-API function ssl_cert_instantiate() is used as a helper
7704 function and also to reduce code redundancy inside ssl_rsa.c.
7705 [Ralf S. Engelschall]
7707 *) Move s_server -dcert and -dkey options out of the undocumented feature
7708 area because they are useful for the DSA situation and should be
7709 recognized by the users.
7710 [Ralf S. Engelschall]
7712 *) Fix the cipher decision scheme for export ciphers: the export bits are
7713 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7714 SSL_EXP_MASK. So, the original variable has to be used instead of the
7715 already masked variable.
7716 [Richard Levitte <levitte@stacken.kth.se>]
7718 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7719 [Richard Levitte <levitte@stacken.kth.se>]
7721 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7722 from `int' to `unsigned int' because it's a length and initialized by
7723 EVP_DigestFinal() which expects an `unsigned int *'.
7724 [Richard Levitte <levitte@stacken.kth.se>]
7726 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7727 script. Instead use the usual Shell->Perl transition trick.
7728 [Ralf S. Engelschall]
7730 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7731 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7732 -noout -modulus' as it's already the case for `openssl rsa -noout
7733 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7734 currently the public key is printed (a decision which was already done by
7735 `openssl dsa -modulus' in the past) which serves a similar purpose.
7736 Additionally the NO_RSA no longer completely removes the whole -modulus
7737 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7739 [Ralf S. Engelschall]
7741 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7742 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7743 [Arne Ansper <arne@ats.cyber.ee>]
7745 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7746 to be added. Now both 'req' and 'ca' can use new objects defined in the
7750 *) Add cool BIO that does syslog (or event log on NT).
7751 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7753 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7754 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7755 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7756 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7759 *) Add preliminary config info for new extension code.
7762 *) Make RSA_NO_PADDING really use no padding.
7763 [Ulf Moeller <ulf@fitug.de>]
7765 *) Generate errors when private/public key check is done.
7768 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7769 for some CRL extensions and new objects added.
7772 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7773 key usage extension and fuller support for authority key id.
7776 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7777 padding method for RSA, which is recommended for new applications in PKCS
7778 #1 v2.0 (RFC 2437, October 1998).
7779 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7780 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7781 against Bleichbacher's attack on RSA.
7782 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7785 *) Updates to the new SSL compression code
7786 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7788 *) Fix so that the version number in the master secret, when passed
7789 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7790 (because the server will not accept higher), that the version number
7791 is 0x03,0x01, not 0x03,0x00
7792 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7794 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7795 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7796 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7799 *) Support for RAW extensions where an arbitrary extension can be
7800 created by including its DER encoding. See apps/openssl.cnf for
7804 *) Make sure latest Perl versions don't interpret some generated C array
7805 code as Perl array code in the crypto/err/err_genc.pl script.
7806 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7808 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7809 not many people have the assembler. Various Win32 compilation fixes and
7810 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7814 *) Modify configure script 'Configure' to automatically create crypto/date.h
7815 file under Win32 and also build pem.h from pem.org. New script
7816 util/mkfiles.pl to create the MINFO file on environments that can't do a
7817 'make files': perl util/mkfiles.pl >MINFO should work.
7820 *) Major rework of DES function declarations, in the pursuit of correctness
7821 and purity. As a result, many evil casts evaporated, and some weirdness,
7822 too. You may find this causes warnings in your code. Zapping your evil
7823 casts will probably fix them. Mostly.
7826 *) Fix for a typo in asn1.h. Bug fix to object creation script
7827 obj_dat.pl. It considered a zero in an object definition to mean
7828 "end of object": none of the objects in objects.h have any zeros
7829 so it wasn't spotted.
7830 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7832 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7833 Masking (CBCM). In the absence of test vectors, the best I have been able
7834 to do is check that the decrypt undoes the encrypt, so far. Send me test
7835 vectors if you have them.
7838 *) Correct calculation of key length for export ciphers (too much space was
7839 allocated for null ciphers). This has not been tested!
7842 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7843 message is now correct (it understands "crypto" and "ssl" on its
7844 command line). There is also now an "update" option. This will update
7845 the util/ssleay.num and util/libeay.num files with any new functions.
7847 perl util/mkdef.pl crypto ssl update
7848 it will update them.
7851 *) Overhauled the Perl interface (perl/*):
7852 - ported BN stuff to OpenSSL's different BN library
7853 - made the perl/ source tree CVS-aware
7854 - renamed the package from SSLeay to OpenSSL (the files still contain
7855 their history because I've copied them in the repository)
7856 - removed obsolete files (the test scripts will be replaced
7857 by better Test::Harness variants in the future)
7858 [Ralf S. Engelschall]
7860 *) First cut for a very conservative source tree cleanup:
7861 1. merge various obsolete readme texts into doc/ssleay.txt
7862 where we collect the old documents and readme texts.
7863 2. remove the first part of files where I'm already sure that we no
7864 longer need them because of three reasons: either they are just temporary
7865 files which were left by Eric or they are preserved original files where
7866 I've verified that the diff is also available in the CVS via "cvs diff
7867 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7868 the crypto/md/ stuff).
7869 [Ralf S. Engelschall]
7871 *) More extension code. Incomplete support for subject and issuer alt
7872 name, issuer and authority key id. Change the i2v function parameters
7873 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7874 what that's for :-) Fix to ASN1 macro which messed up
7875 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7878 *) Preliminary support for ENUMERATED type. This is largely copied from the
7882 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7883 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7885 *) Make sure `make rehash' target really finds the `openssl' program.
7886 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7888 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7889 like to hear about it if this slows down other processors.
7892 *) Add CygWin32 platform information to Configure script.
7893 [Alan Batie <batie@aahz.jf.intel.com>]
7895 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7896 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7898 *) New program nseq to manipulate netscape certificate sequences
7901 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7905 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7906 but the BN code had some problems that would cause failures when
7907 doing certificate verification and some other functions.
7908 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7910 *) Add ASN1 and PEM code to support netscape certificate sequences.
7913 *) Add ASN1 and PEM code to support netscape certificate sequences.
7916 *) Add several PKIX and private extended key usage OIDs.
7919 *) Modify the 'ca' program to handle the new extension code. Modify
7920 openssl.cnf for new extension format, add comments.
7923 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7924 and add a sample to openssl.cnf so req -x509 now adds appropriate
7928 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7929 error code, add initial support to X509_print() and x509 application.
7932 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7933 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7934 stuff is currently isolated and isn't even compiled yet.
7937 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7938 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7939 Removed the versions check from X509 routines when loading extensions:
7940 this allows certain broken certificates that don't set the version
7941 properly to be processed.
7944 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7945 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7946 can still be regenerated with "make depend".
7949 *) Spelling mistake in C version of CAST-128.
7950 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7952 *) Changes to the error generation code. The perl script err-code.pl
7953 now reads in the old error codes and retains the old numbers, only
7954 adding new ones if necessary. It also only changes the .err files if new
7955 codes are added. The makefiles have been modified to only insert errors
7956 when needed (to avoid needlessly modifying header files). This is done
7957 by only inserting errors if the .err file is newer than the auto generated
7958 C file. To rebuild all the error codes from scratch (the old behaviour)
7959 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7960 or delete all the .err files.
7963 *) CAST-128 was incorrectly implemented for short keys. The C version has
7964 been fixed, but is untested. The assembler versions are also fixed, but
7965 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7966 to regenerate it if needed.
7967 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7968 Hagino <itojun@kame.net>]
7970 *) File was opened incorrectly in randfile.c.
7971 [Ulf Möller <ulf@fitug.de>]
7973 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7974 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7975 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7976 al: it's just almost always a UTCTime. Note this patch adds new error
7977 codes so do a "make errors" if there are problems.
7980 *) Correct Linux 1 recognition in config.
7981 [Ulf Möller <ulf@fitug.de>]
7983 *) Remove pointless MD5 hash when using DSA keys in ca.
7984 [Anonymous <nobody@replay.com>]
7986 *) Generate an error if given an empty string as a cert directory. Also
7987 generate an error if handed NULL (previously returned 0 to indicate an
7988 error, but didn't set one).
7989 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7991 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7994 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7995 parameters. This was causing a warning which killed off the Win32 compile.
7998 *) Remove C++ style comments from crypto/bn/bn_local.h.
7999 [Neil Costigan <neil.costigan@celocom.com>]
8001 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8002 based on a text string, looking up short and long names and finally
8003 "dot" format. The "dot" format stuff didn't work. Added new function
8004 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8005 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8006 OID is not part of the table.
8009 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8010 X509_LOOKUP_by_alias().
8013 *) Sort openssl functions by name.
8016 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8017 encryption from sample DSA keys (in case anyone is interested the password
8021 *) Make _all_ *_free functions accept a NULL pointer.
8022 [Frans Heymans <fheymans@isaserver.be>]
8024 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8026 [Anonymous <nobody@replay.com>]
8028 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8029 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8031 *) Don't blow it for numeric -newkey arguments to apps/req.
8032 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8034 *) Temp key "for export" tests were wrong in s3_srvr.c.
8035 [Anonymous <nobody@replay.com>]
8037 *) Add prototype for temp key callback functions
8038 SSL_CTX_set_tmp_{rsa,dh}_callback().
8041 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8042 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8045 *) X509_name_add_entry() freed the wrong thing after an error.
8046 [Arne Ansper <arne@ats.cyber.ee>]
8048 *) rsa_eay.c would attempt to free a NULL context.
8049 [Arne Ansper <arne@ats.cyber.ee>]
8051 *) BIO_s_socket() had a broken should_retry() on Windoze.
8052 [Arne Ansper <arne@ats.cyber.ee>]
8054 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8055 [Arne Ansper <arne@ats.cyber.ee>]
8057 *) Make sure the already existing X509_STORE->depth variable is initialized
8058 in X509_STORE_new(), but document the fact that this variable is still
8059 unused in the certificate verification process.
8060 [Ralf S. Engelschall]
8062 *) Fix the various library and apps files to free up pkeys obtained from
8063 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8066 *) Fix reference counting in X509_PUBKEY_get(). This makes
8067 demos/maurice/example2.c work, amongst others, probably.
8068 [Steve Henson and Ben Laurie]
8070 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8071 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8072 are no longer created. This way we have a single and consistent command
8073 line interface `openssl <command>', similar to `cvs <command>'.
8074 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8076 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8077 BIT STRING wrapper always have zero unused bits.
8080 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8083 *) Make the top-level INSTALL documentation easier to understand.
8086 *) Makefiles updated to exit if an error occurs in a sub-directory
8087 make (including if user presses ^C) [Paul Sutton]
8089 *) Make Montgomery context stuff explicit in RSA data structure.
8092 *) Fix build order of pem and err to allow for generated pem.h.
8095 *) Fix renumbering bug in X509_NAME_delete_entry().
8098 *) Enhanced the err-ins.pl script so it makes the error library number
8099 global and can add a library name. This is needed for external ASN1 and
8100 other error libraries.
8103 *) Fixed sk_insert which never worked properly.
8106 *) Fix ASN1 macros so they can handle indefinite length construted
8107 EXPLICIT tags. Some non standard certificates use these: they can now
8111 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8112 into a single doc/ssleay.txt bundle. This way the information is still
8113 preserved but no longer messes up this directory. Now it's new room for
8114 the new set of documenation files.
8115 [Ralf S. Engelschall]
8117 *) SETs were incorrectly DER encoded. This was a major pain, because they
8118 shared code with SEQUENCEs, which aren't coded the same. This means that
8119 almost everything to do with SETs or SEQUENCEs has either changed name or
8120 number of arguments.
8121 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8123 *) Fix test data to work with the above.
8126 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8127 was already fixed by Eric for 0.9.1 it seems.
8128 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8130 *) Autodetect FreeBSD3.
8133 *) Fix various bugs in Configure. This affects the following platforms:
8137 unixware-2.0-pentium
8141 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8142 before they are needed.
8145 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8149 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8151 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8152 changed SSLeay to OpenSSL in version strings.
8153 [Ralf S. Engelschall]
8155 *) Some fixups to the top-level documents.
8158 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8159 because the symlink to include/ was missing.
8160 [Ralf S. Engelschall]
8162 *) Incorporated the popular no-RSA/DSA-only patches
8163 which allow to compile a RSA-free SSLeay.
8164 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8166 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8167 when "ssleay" is still not found.
8168 [Ralf S. Engelschall]
8170 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8171 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8173 *) Updated the README file.
8174 [Ralf S. Engelschall]
8176 *) Added various .cvsignore files in the CVS repository subdirs
8177 to make a "cvs update" really silent.
8178 [Ralf S. Engelschall]
8180 *) Recompiled the error-definition header files and added
8181 missing symbols to the Win32 linker tables.
8182 [Ralf S. Engelschall]
8184 *) Cleaned up the top-level documents;
8185 o new files: CHANGES and LICENSE
8186 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8187 o merged COPYRIGHT into LICENSE
8188 o removed obsolete TODO file
8189 o renamed MICROSOFT to INSTALL.W32
8190 [Ralf S. Engelschall]
8192 *) Removed dummy files from the 0.9.1b source tree:
8193 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8194 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8195 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8196 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8197 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8198 [Ralf S. Engelschall]
8200 *) Added various platform portability fixes.
8203 *) The Genesis of the OpenSSL rpject:
8204 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8205 Young and Tim J. Hudson created while they were working for C2Net until
8207 [The OpenSSL Project]
8210 Changes between 0.9.0b and 0.9.1b [not released]
8212 *) Updated a few CA certificates under certs/
8215 *) Changed some BIGNUM api stuff.
8218 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8219 DGUX x86, Linux Alpha, etc.
8222 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8223 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8227 *) Add -strparse option to asn1pars program which parses nested
8229 [Dr Stephen Henson <shenson@bigfoot.com>]
8231 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8234 *) DSA fix for "ca" program.
8237 *) Added "-genkey" option to "dsaparam" program.
8240 *) Added RIPE MD160 (rmd160) message digest.
8243 *) Added -a (all) option to "ssleay version" command.
8246 *) Added PLATFORM define which is the id given to Configure.
8249 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8252 *) Extended the ASN.1 parser routines.
8255 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8258 *) Added a BN_CTX to the BN library.
8261 *) Fixed the weak key values in DES library
8264 *) Changed API in EVP library for cipher aliases.
8267 *) Added support for RC2/64bit cipher.
8270 *) Converted the lhash library to the crypto/mem.c functions.
8273 *) Added more recognized ASN.1 object ids.
8276 *) Added more RSA padding checks for SSL/TLS.
8279 *) Added BIO proxy/filter functionality.
8282 *) Added extra_certs to SSL_CTX which can be used
8283 send extra CA certificates to the client in the CA cert chain sending
8284 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8287 *) Now Fortezza is denied in the authentication phase because
8288 this is key exchange mechanism is not supported by SSLeay at all.
8291 *) Additional PKCS1 checks.
8294 *) Support the string "TLSv1" for all TLS v1 ciphers.
8297 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8298 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8301 *) Fixed a few memory leaks.
8304 *) Fixed various code and comment typos.
8307 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8308 bytes sent in the client random.
8309 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob