5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) Change ssl_cipher_apply_rule(), the internal function that does
8 the work each time a ciphersuite string requests enabling
9 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
10 removing ("!foo+bar") a class of ciphersuites: Now it maintains
11 the order of disabled ciphersuites such that those ciphersuites
12 that most recently went from enabled to disabled not only stay
13 in order with respect to each other, but also have higher priority
14 than other disabled ciphersuites the next time ciphersuites are
17 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
18 the same ciphersuites as with "HIGH" alone, but in a specific
19 order where the PSK ciphersuites come first (since they are the
20 most recently disabled ciphersuites when "HIGH" is parsed).
22 Also, change ssl_create_cipher_list() (using this new
23 funcionality) such that between otherwise identical
24 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
28 *) Change ssl_create_cipher_list() so that it automatically
29 arranges the ciphersuites in reasonable order before starting
30 to process the rule string. Thus, the definition for "DEFAULT"
31 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
32 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
33 This makes it much easier to arrive at a reasonable default order
34 in applications for which anonymous ciphers are OK (meaning
35 that you can't actually use DEFAULT).
36 [Bodo Moeller; suggested by Victor Duchovni]
38 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
39 processing) into multiple integers instead of setting
40 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
41 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
42 (These masks as well as the individual bit definitions are hidden
43 away into the non-exported interface ssl/ssl_locl.h, so this
44 change to the definition of the SSL_CIPHER structure shouldn't
45 affect applications.) This give us more bits for each of these
46 categories, so there is no longer a need to coagulate AES128 and
47 AES256 into a single algorithm bit, and to coagulate Camellia128
48 and Camellia256 into a single algorithm bit, which has led to all
51 Thus, among other things, the kludge introduced in 0.9.7m and
52 0.9.8e for masking out AES256 independently of AES128 or masking
53 out Camellia256 independently of AES256 is not needed here in 0.9.9.
55 With the change, we also introduce new ciphersuite aliases that
56 so far were missing: "AES128", "AES256", "CAMELLIA128", and
60 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
61 Use the leftmost N bytes of the signature input if the input is
62 larger than the prime q (with N being the size in bytes of q).
65 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
66 it yet and it is largely untested.
69 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
72 *) Initial incomplete changes to avoid need for function casts in OpenSSL
73 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
74 their use. Safestack is reimplemented using inline functions: tests show
75 that these calls are typically optimized away by compilers so they have
76 no additional overhead. Update ASN1 to avoid use of legacy functions.
79 *) Win32/64 targets are linked with Winsock2.
82 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
83 to external functions. This can be used to increase CRL handling
84 efficiency especially when CRLs are very large by (for example) storing
85 the CRL revoked certificates in a database.
88 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
89 new CRLs added to a directory can be used. New command line option
90 -verify_return_error to s_client and s_server. This causes real errors
91 to be returned by the verify callback instead of carrying on no matter
92 what. This reflects the way a "real world" verify callback would behave.
95 *) GOST engine, supporting several GOST algorithms and public key formats.
96 Kindly donated by Cryptocom.
99 *) Partial support for Issuing Distribution Point CRL extension. CRLs
100 partitioned by DP are handled but no indirect CRL or reason partitioning
101 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
102 selected via a scoring technique which handles IDP and AKID in CRLs.
105 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
106 will ultimately be used for all verify operations: this will remove the
107 X509_STORE dependency on certificate verification and allow alternative
108 lookup methods. X509_STORE based implementations of these two callbacks.
111 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
112 Modify get_crl() to find a valid (unexpired) CRL if possible.
115 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
116 this would be called X509_CRL_cmp() but that name is already used by
117 a function that just compares CRL issuer names. Cache several CRL
118 extensions in X509_CRL structure and cache CRLDP in X509.
121 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
122 this maps equivalent X509_NAME structures into a consistent structure.
123 Name comparison can then be performed rapidly using memcmp().
126 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
130 *) Allow digests to supply their own micalg string for S/MIME type using
131 the ctrl EVP_MD_CTRL_MICALG.
134 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
135 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
136 ctrl. It can then customise the structure before and/or after signing
140 *) New function OBJ_add_sigid() to allow application defined signature OIDs
141 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
142 to free up any added signature OIDs.
145 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
146 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
147 digest and cipher tables. New options added to openssl utility:
148 list-message-digest-algorithms and list-cipher-algorithms.
151 *) In addition to the numerical (unsigned long) thread ID, provide
152 for a pointer (void *) thread ID. This helps accomodate systems
153 that do not provide an unsigned long thread ID. OpenSSL assumes
154 it is in the same thread iff both the numerical and the pointer
155 thread ID agree; so applications are just required to define one
156 of them appropriately (e.g., by using a pointer to a per-thread
157 memory object malloc()ed by the application for the pointer-type
158 thread ID). Exactly analoguous to the existing functions
160 void CRYPTO_set_id_callback(unsigned long (*func)(void));
161 unsigned long (*CRYPTO_get_id_callback(void))(void);
162 unsigned long CRYPTO_thread_id(void);
164 we now have additional functions
166 void CRYPTO_set_idptr_callback(void *(*func)(void));
167 void *(*CRYPTO_get_idptr_callback(void))(void);
168 void *CRYPTO_thread_idptr(void);
170 also in <openssl/crypto.h>. The default value for
171 CRYPTO_thread_idptr() if the application has not provided its own
175 *) Change the array representation of binary polynomials: the list
176 of degrees of non-zero coefficients is now terminated with -1.
177 Previously it was terminated with 0, which was also part of the
178 value; thus, the array representation was not applicable to
179 polynomials where t^0 has coefficient zero. This change makes
180 the array representation useful in a more general context.
183 *) Various modifications and fixes to SSL/TLS cipher string
184 handling. For ECC, the code now distinguishes between fixed ECDH
185 with RSA certificates on the one hand and with ECDSA certificates
186 on the other hand, since these are separate ciphersuites. The
187 unused code for Fortezza ciphersuites has been removed.
189 For consistency with EDH, ephemeral ECDH is now called "EECDH"
190 (not "ECDHE"). For consistency with the code for DH
191 certificates, use of ECDH certificates is now considered ECDH
192 authentication, not RSA or ECDSA authentication (the latter is
193 merely the CA's signing algorithm and not actively used in the
196 The temporary ciphersuite alias "ECCdraft" is no longer
197 available, and ECC ciphersuites are no longer excluded from "ALL"
198 and "DEFAULT". The following aliases now exist for RFC 4492
199 ciphersuites, most of these by analogy with the DH case:
201 kECDHr - ECDH cert, signed with RSA
202 kECDHe - ECDH cert, signed with ECDSA
203 kECDH - ECDH cert (signed with either RSA or ECDSA)
204 kEECDH - ephemeral ECDH
205 ECDH - ECDH cert or ephemeral ECDH
211 AECDH - anonymous ECDH
212 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
216 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
217 Use correct micalg parameters depending on digest(s) in signed message.
220 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
221 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
224 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
225 an engine to register a method. Add ENGINE lookups for methods and
226 functional reference processing.
229 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
230 EVP_{Sign,Verify}* which allow an application to customise the signature
234 *) New -resign option to smime utility. This adds one or more signers
235 to an existing PKCS#7 signedData structure. Also -md option to use an
236 alternative message digest algorithm for signing.
239 *) Tidy up PKCS#7 routines and add new functions to make it easier to
240 create PKCS7 structures containing multiple signers. Update smime
241 application to support multiple signers.
244 *) New -macalg option to pkcs12 utility to allow setting of an alternative
248 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
249 Reorganize PBE internals to lookup from a static table using NIDs,
250 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
251 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
252 PRF which will be automatically used with PBES2.
255 *) Replace the algorithm specific calls to generate keys in "req" with the
259 *) Update PKCS#7 enveloped data routines to use new API. This is now
260 supported by any public key method supporting the encrypt operation. A
261 ctrl is added to allow the public key algorithm to examine or modify
262 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
266 *) Add a ctrl to asn1 method to allow a public key algorithm to express
267 a default digest type to use. In most cases this will be SHA1 but some
268 algorithms (such as GOST) need to specify an alternative digest. The
269 return value indicates how strong the prefernce is 1 means optional and
270 2 is mandatory (that is it is the only supported type). Modify
271 ASN1_item_sign() to accept a NULL digest argument to indicate it should
272 use the default md. Update openssl utilities to use the default digest
273 type for signing if it is not explicitly indicated.
276 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
277 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
278 signing method from the key type. This effectively removes the link
279 between digests and public key types.
282 *) Add an OID cross reference table and utility functions. Its purpose is to
283 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
284 rsaEncryption. This will allow some of the algorithm specific hackery
285 needed to use the correct OID to be removed.
288 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
289 structures for PKCS7_sign(). They are now set up by the relevant public
293 *) Add provisional EC pkey method with support for ECDSA and ECDH.
296 *) Add support for key derivation (agreement) in the API, DH method and
300 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
301 public and private key formats. As a side effect these add additional
302 command line functionality not previously available: DSA signatures can be
303 generated and verified using pkeyutl and DH key support and generation in
308 [Oliver Tappe <zooey@hirschkaefer.de>]
310 *) New make target "install_html_docs" installs HTML renditions of the
312 [Oliver Tappe <zooey@hirschkaefer.de>]
314 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
315 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
316 support key and parameter generation and add initial key generation
317 functionality for RSA.
320 *) Add functions for main EVP_PKEY_method operations. The undocumented
321 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
322 EVP_PKEY_{encrypt,decrypt}_old.
325 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
326 key API, doesn't do much yet.
329 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
330 public key algorithms. New option to openssl utility:
331 "list-public-key-algorithms" to print out info.
334 *) Implement the Supported Elliptic Curves Extension for
335 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
338 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
339 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
342 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
343 utilities such as rsa, dsa, dsaparam etc except they process any key
347 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
348 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
349 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
353 *) Initial support for pluggable public key ASN1.
354 De-spaghettify the public key ASN1 handling. Move public and private
355 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
356 algorithm specific handling to a single module within the relevant
357 algorithm directory. Add functions to allow (near) opaque processing
358 of public and private key structures.
361 *) Implement the Supported Point Formats Extension for
362 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
365 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
366 for the psk identity [hint] and the psk callback functions to the
367 SSL_SESSION, SSL and SSL_CTX structure.
370 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
374 SSL_CTX_use_psk_identity_hint
375 SSL_get_psk_identity_hint
377 SSL_use_psk_identity_hint
379 [Mika Kousa and Pasi Eronen of Nokia Corporation]
381 *) Add RFC 3161 compliant time stamp request creation, response generation
382 and response verification functionality.
383 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
385 *) Add initial support for TLS extensions, specifically for the server_name
386 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
387 have new members for a host name. The SSL data structure has an
388 additional member SSL_CTX *initial_ctx so that new sessions can be
389 stored in that context to allow for session resumption, even after the
390 SSL has been switched to a new SSL_CTX in reaction to a client's
391 server_name extension.
393 New functions (subject to change):
396 SSL_get_servername_type()
399 New CTRL codes and macros (subject to change):
401 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
402 - SSL_CTX_set_tlsext_servername_callback()
403 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
404 - SSL_CTX_set_tlsext_servername_arg()
405 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
407 openssl s_client has a new '-servername ...' option.
409 openssl s_server has new options '-servername_host ...', '-cert2 ...',
410 '-key2 ...', '-servername_fatal' (subject to change). This allows
411 testing the HostName extension for a specific single host name ('-cert'
412 and '-key' remain fallbacks for handshakes without HostName
413 negotiation). If the unrecogninzed_name alert has to be sent, this by
414 default is a warning; it becomes fatal with the '-servername_fatal'
417 [Peter Sylvester, Remy Allais, Christophe Renou]
419 *) Whirlpool hash implementation is added.
422 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
423 bn(64,32). Because of instruction set limitations it doesn't have
424 any negative impact on performance. This was done mostly in order
425 to make it possible to share assembler modules, such as bn_mul_mont
426 implementations, between 32- and 64-bit builds without hassle.
429 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
430 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
434 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
435 dedicated Montgomery multiplication procedure, is introduced.
436 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
437 "64-bit" performance on certain 32-bit targets.
440 *) New option SSL_OP_NO_COMP to disable use of compression selectively
441 in SSL structures. New SSL ctrl to set maximum send fragment size.
442 Save memory by seeting the I/O buffer sizes dynamically instead of
443 using the maximum available value.
446 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
447 in addition to the text details.
450 *) Very, very preliminary EXPERIMENTAL support for printing of general
451 ASN1 structures. This currently produces rather ugly output and doesn't
452 handle several customised structures at all.
455 *) Integrated support for PVK file format and some related formats such
456 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
457 these in the 'rsa' and 'dsa' utilities.
460 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
463 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
464 place for the (very old) "NETSCAPE" format certificates which are now
465 handled using new ASN1 code equivalents.
468 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
469 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
470 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
473 *) Modify CRL distribution points extension code to print out previously
474 unsupported fields. Enhance extension setting code to allow setting of
478 *) Add print and set support for Issuing Distribution Point CRL extension.
481 *) Change 'Configure' script to enable Camellia by default.
484 Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
486 *) In the SSL/TLS server implementation, be strict about session ID
487 context matching (which matters if an application uses a single
488 external cache for different purposes). Previously,
489 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
490 set. This did ensure strict client verification, but meant that,
491 with applications using a single external cache for quite
492 different requirements, clients could circumvent ciphersuite
493 restrictions for a given session ID context by starting a session
494 in a different context.
497 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
498 a ciphersuite string such as "DEFAULT:RSA" cannot enable
499 authentication-only ciphersuites.
502 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
504 *) Since AES128 and AES256 (and similarly Camellia128 and
505 Camellia256) share a single mask bit in the logic of
506 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
507 kludge to work properly if AES128 is available and AES256 isn't
508 (or if Camellia128 is available and Camellia256 isn't).
511 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
512 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
513 When a point or a seed is encoded in a BIT STRING, we need to
514 prevent the removal of trailing zero bits to get the proper DER
515 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
516 of a NamedBitList, for which trailing 0 bits need to be removed.)
519 *) Have SSL/TLS server implementation tolerate "mismatched" record
520 protocol version while receiving ClientHello even if the
521 ClientHello is fragmented. (The server can't insist on the
522 particular protocol version it has chosen before the ServerHello
523 message has informed the client about his choice.)
526 *) Add RFC 3779 support.
527 [Rob Austein for ARIN, Ben Laurie]
529 *) Load error codes if they are not already present instead of using a
530 static variable. This allows them to be cleanly unloaded and reloaded.
531 Improve header file function name parsing.
534 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
535 or CAPABILITY handshake as required by RFCs.
538 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
540 *) Introduce limits to prevent malicious keys being able to
541 cause a denial of service. (CVE-2006-2940)
542 [Steve Henson, Bodo Moeller]
544 *) Fix ASN.1 parsing of certain invalid structures that can result
545 in a denial of service. (CVE-2006-2937) [Steve Henson]
547 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
548 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
550 *) Fix SSL client code which could crash if connecting to a
551 malicious SSLv2 server. (CVE-2006-4343)
552 [Tavis Ormandy and Will Drewry, Google Security Team]
554 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
555 match only those. Before that, "AES256-SHA" would be interpreted
556 as a pattern and match "AES128-SHA" too (since AES128-SHA got
557 the same strength classification in 0.9.7h) as we currently only
558 have a single AES bit in the ciphersuite description bitmap.
559 That change, however, also applied to ciphersuite strings such as
560 "RC4-MD5" that intentionally matched multiple ciphersuites --
561 namely, SSL 2.0 ciphersuites in addition to the more common ones
562 from SSL 3.0/TLS 1.0.
564 So we change the selection algorithm again: Naming an explicit
565 ciphersuite selects this one ciphersuite, and any other similar
566 ciphersuite (same bitmap) from *other* protocol versions.
567 Thus, "RC4-MD5" again will properly select both the SSL 2.0
568 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
570 Since SSL 2.0 does not have any ciphersuites for which the
571 128/256 bit distinction would be relevant, this works for now.
572 The proper fix will be to use different bits for AES128 and
573 AES256, which would have avoided the problems from the beginning;
574 however, bits are scarce, so we can only do this in a new release
575 (not just a patchlevel) when we can change the SSL_CIPHER
576 definition to split the single 'unsigned long mask' bitmap into
577 multiple values to extend the available space.
581 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
583 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
584 (CVE-2006-4339) [Ben Laurie and Google Security Team]
586 *) Add AES IGE and biIGE modes.
589 *) Change the Unix randomness entropy gathering to use poll() when
590 possible instead of select(), since the latter has some
591 undesirable limitations.
592 [Darryl Miles via Richard Levitte and Bodo Moeller]
594 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
595 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
596 cannot be implicitly activated as part of, e.g., the "AES" alias.
597 However, please upgrade to OpenSSL 0.9.9[-dev] for
598 non-experimental use of the ECC ciphersuites to get TLS extension
599 support, which is required for curve and point format negotiation
600 to avoid potential handshake problems.
603 *) Disable rogue ciphersuites:
605 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
606 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
607 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
609 The latter two were purportedly from
610 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
613 Also deactivate the remaining ciphersuites from
614 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
615 unofficial, and the ID has long expired.
618 *) Fix RSA blinding Heisenbug (problems sometimes occured on
619 dual-core machines) and other potential thread-safety issues.
622 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
623 versions), which is now available for royalty-free use
624 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
625 Also, add Camellia TLS ciphersuites from RFC 4132.
627 To minimize changes between patchlevels in the OpenSSL 0.9.8
628 series, Camellia remains excluded from compilation unless OpenSSL
629 is configured with 'enable-camellia'.
632 *) Disable the padding bug check when compression is in use. The padding
633 bug check assumes the first packet is of even length, this is not
634 necessarily true if compresssion is enabled and can result in false
635 positives causing handshake failure. The actual bug test is ancient
636 code so it is hoped that implementations will either have fixed it by
637 now or any which still have the bug do not support compression.
640 Changes between 0.9.8a and 0.9.8b [04 May 2006]
642 *) When applying a cipher rule check to see if string match is an explicit
643 cipher suite and only match that one cipher suite if it is.
646 *) Link in manifests for VC++ if needed.
647 [Austin Ziegler <halostatue@gmail.com>]
649 *) Update support for ECC-based TLS ciphersuites according to
650 draft-ietf-tls-ecc-12.txt with proposed changes (but without
651 TLS extensions, which are supported starting with the 0.9.9
652 branch, not in the OpenSSL 0.9.8 branch).
655 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
656 opaque EVP_CIPHER_CTX handling.
659 *) Fixes and enhancements to zlib compression code. We now only use
660 "zlib1.dll" and use the default __cdecl calling convention on Win32
661 to conform with the standards mentioned here:
662 http://www.zlib.net/DLL_FAQ.txt
663 Static zlib linking now works on Windows and the new --with-zlib-include
664 --with-zlib-lib options to Configure can be used to supply the location
665 of the headers and library. Gracefully handle case where zlib library
669 *) Several fixes and enhancements to the OID generation code. The old code
670 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
671 handle numbers larger than ULONG_MAX, truncated printing and had a
672 non standard OBJ_obj2txt() behaviour.
675 *) Add support for building of engines under engine/ as shared libraries
676 under VC++ build system.
679 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
680 Hopefully, we will not see any false combination of paths any more.
683 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
685 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
686 (part of SSL_OP_ALL). This option used to disable the
687 countermeasure against man-in-the-middle protocol-version
688 rollback in the SSL 2.0 server implementation, which is a bad
689 idea. (CVE-2005-2969)
691 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
692 for Information Security, National Institute of Advanced Industrial
693 Science and Technology [AIST], Japan)]
695 *) Add two function to clear and return the verify parameter flags.
698 *) Keep cipherlists sorted in the source instead of sorting them at
699 runtime, thus removing the need for a lock.
702 *) Avoid some small subgroup attacks in Diffie-Hellman.
703 [Nick Mathewson and Ben Laurie]
705 *) Add functions for well-known primes.
708 *) Extended Windows CE support.
709 [Satoshi Nakamura and Andy Polyakov]
711 *) Initialize SSL_METHOD structures at compile time instead of during
712 runtime, thus removing the need for a lock.
715 *) Make PKCS7_decrypt() work even if no certificate is supplied by
716 attempting to decrypt each encrypted key in turn. Add support to
720 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
722 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
725 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
728 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
729 key into the same file any more.
732 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
735 *) Add -utf8 command line and config file option to 'ca'.
736 [Stefan <stf@udoma.org]
738 *) Removed the macro des_crypt(), as it seems to conflict with some
739 libraries. Use DES_crypt().
742 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
743 involves renaming the source and generated shared-libs for
744 both. The engines will accept the corrected or legacy ids
745 ('ncipher' and '4758_cca' respectively) when binding. NB,
746 this only applies when building 'shared'.
747 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
749 *) Add attribute functions to EVP_PKEY structure. Modify
750 PKCS12_create() to recognize a CSP name attribute and
751 use it. Make -CSP option work again in pkcs12 utility.
754 *) Add new functionality to the bn blinding code:
755 - automatic re-creation of the BN_BLINDING parameters after
756 a fixed number of uses (currently 32)
757 - add new function for parameter creation
758 - introduce flags to control the update behaviour of the
759 BN_BLINDING parameters
760 - hide BN_BLINDING structure
761 Add a second BN_BLINDING slot to the RSA structure to improve
762 performance when a single RSA object is shared among several
766 *) Add support for DTLS.
767 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
769 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
770 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
773 *) Remove buggy and incompletet DH cert support from
774 ssl/ssl_rsa.c and ssl/s3_both.c
777 *) Use SHA-1 instead of MD5 as the default digest algorithm for
778 the apps/openssl applications.
781 *) Compile clean with "-Wall -Wmissing-prototypes
782 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
783 DEBUG_SAFESTACK must also be set.
786 *) Change ./Configure so that certain algorithms can be disabled by default.
787 The new counterpiece to "no-xxx" is "enable-xxx".
789 The patented RC5 and MDC2 algorithms will now be disabled unless
790 "enable-rc5" and "enable-mdc2", respectively, are specified.
792 (IDEA remains enabled despite being patented. This is because IDEA
793 is frequently required for interoperability, and there is no license
794 fee for non-commercial use. As before, "no-idea" can be used to
795 avoid this algorithm.)
799 *) Add processing of proxy certificates (see RFC 3820). This work was
800 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
801 EGEE (Enabling Grids for E-science in Europe).
804 *) RC4 performance overhaul on modern architectures/implementations, such
805 as Intel P4, IA-64 and AMD64.
808 *) New utility extract-section.pl. This can be used specify an alternative
809 section number in a pod file instead of having to treat each file as
810 a separate case in Makefile. This can be done by adding two lines to the
813 =for comment openssl_section:XXX
815 The blank line is mandatory.
819 *) New arguments -certform, -keyform and -pass for s_client and s_server
820 to allow alternative format key and certificate files and passphrase
824 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
825 update associated structures and add various utility functions.
827 Add new policy related verify parameters, include policy checking in
828 standard verify code. Enhance 'smime' application with extra parameters
829 to support policy checking and print out.
832 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
833 Nehemiah processors. These extensions support AES encryption in hardware
834 as well as RNG (though RNG support is currently disabled).
835 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
837 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
840 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
841 [Andy Polyakov and a number of other people]
843 *) Improved PowerPC platform support. Most notably BIGNUM assembler
844 implementation contributed by IBM.
845 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
847 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
848 exponent rather than 'unsigned long'. There is a corresponding change to
849 the new 'rsa_keygen' element of the RSA_METHOD structure.
850 [Jelte Jansen, Geoff Thorpe]
852 *) Functionality for creating the initial serial number file is now
853 moved from CA.pl to the 'ca' utility with a new option -create_serial.
855 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
856 number file to 1, which is bound to cause problems. To avoid
857 the problems while respecting compatibility between different 0.9.7
858 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
859 CA.pl for serial number initialization. With the new release 0.9.8,
860 we can fix the problem directly in the 'ca' utility.)
863 *) Reduced header interdepencies by declaring more opaque objects in
864 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
865 give fewer recursive includes, which could break lazy source code - so
866 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
867 developers should define this symbol when building and using openssl to
868 ensure they track the recommended behaviour, interfaces, [etc], but
869 backwards-compatible behaviour prevails when this isn't defined.
872 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
875 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
876 This will generate a random key of the appropriate length based on the
877 cipher context. The EVP_CIPHER can provide its own random key generation
878 routine to support keys of a specific form. This is used in the des and
879 3des routines to generate a key of the correct parity. Update S/MIME
880 code to use new functions and hence generate correct parity DES keys.
881 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
882 valid (weak or incorrect parity).
885 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
886 as looking them up. This is useful when the verified structure may contain
887 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
888 present unless the new PKCS7_NO_CRL flag is asserted.
891 *) Extend ASN1 oid configuration module. It now additionally accepts the
894 shortName = some long name, 1.2.3.4
897 *) Reimplemented the BN_CTX implementation. There is now no more static
898 limitation on the number of variables it can handle nor the depth of the
899 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
900 information can now expand as required, and rather than having a single
901 static array of bignums, BN_CTX now uses a linked-list of such arrays
902 allowing it to expand on demand whilst maintaining the usefulness of
906 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
907 to allow all RSA operations to function using a single BN_CTX.
910 *) Preliminary support for certificate policy evaluation and checking. This
911 is initially intended to pass the tests outlined in "Conformance Testing
912 of Relying Party Client Certificate Path Processing Logic" v1.07.
915 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
916 remained unused and not that useful. A variety of other little bignum
917 tweaks and fixes have also been made continuing on from the audit (see
921 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
922 associated ASN1, EVP and SSL functions and old ASN1 macros.
925 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
926 and this should never fail. So the return value from the use of
927 BN_set_word() (which can fail due to needless expansion) is now deprecated;
928 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
931 *) BN_CTX_get() should return zero-valued bignums, providing the same
932 initialised value as BN_new().
933 [Geoff Thorpe, suggested by Ulf Möller]
935 *) Support for inhibitAnyPolicy certificate extension.
938 *) An audit of the BIGNUM code is underway, for which debugging code is
939 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
940 is considered valid when processing BIGNUMs, and causes execution to
941 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
942 further steps are taken to deliberately pollute unused data in BIGNUM
943 structures to try and expose faulty code further on. For now, openssl will
944 (in its default mode of operation) continue to tolerate the inconsistent
945 forms that it has tolerated in the past, but authors and packagers should
946 consider trying openssl and their own applications when compiled with
947 these debugging symbols defined. It will help highlight potential bugs in
948 their own code, and will improve the test coverage for OpenSSL itself. At
949 some point, these tighter rules will become openssl's default to improve
950 maintainability, though the assert()s and other overheads will remain only
951 in debugging configurations. See bn.h for more details.
952 [Geoff Thorpe, Nils Larsch, Ulf Möller]
954 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
955 that can only be obtained through BN_CTX_new() (which implicitly
956 initialises it). The presence of this function only made it possible
957 to overwrite an existing structure (and cause memory leaks).
960 *) Because of the callback-based approach for implementing LHASH as a
961 template type, lh_insert() adds opaque objects to hash-tables and
962 lh_doall() or lh_doall_arg() are typically used with a destructor callback
963 to clean up those corresponding objects before destroying the hash table
964 (and losing the object pointers). So some over-zealous constifications in
965 LHASH have been relaxed so that lh_insert() does not take (nor store) the
966 objects as "const" and the lh_doall[_arg] callback wrappers are not
967 prototyped to have "const" restrictions on the object pointers they are
968 given (and so aren't required to cast them away any more).
971 *) The tmdiff.h API was so ugly and minimal that our own timing utility
972 (speed) prefers to use its own implementation. The two implementations
973 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
974 its object type properly exposed (MS_TM) instead of casting to/from "char
975 *". This may still change yet if someone realises MS_TM and "ms_time_***"
976 aren't necessarily the greatest nomenclatures - but this is what was used
977 internally to the implementation so I've used that for now.
980 *) Ensure that deprecated functions do not get compiled when
981 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
982 the self-tests were still using deprecated key-generation functions so
983 these have been updated also.
986 *) Reorganise PKCS#7 code to separate the digest location functionality
987 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
988 New function PKCS7_set_digest() to set the digest type for PKCS#7
989 digestedData type. Add additional code to correctly generate the
990 digestedData type and add support for this type in PKCS7 initialization
994 *) New function PKCS7_set0_type_other() this initializes a PKCS7
995 structure of type "other".
998 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
999 sure the loop does correctly stop and breaking ("division by zero")
1000 modulus operations are not performed. The (pre-generated) prime
1001 table crypto/bn/bn_prime.h was already correct, but it could not be
1002 re-generated on some platforms because of the "division by zero"
1003 situation in the script.
1004 [Ralf S. Engelschall]
1006 *) Update support for ECC-based TLS ciphersuites according to
1007 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1008 SHA-1 now is only used for "small" curves (where the
1009 representation of a field element takes up to 24 bytes); for
1010 larger curves, the field element resulting from ECDH is directly
1011 used as premaster secret.
1012 [Douglas Stebila (Sun Microsystems Laboratories)]
1014 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1015 curve secp160r1 to the tests.
1016 [Douglas Stebila (Sun Microsystems Laboratories)]
1018 *) Add the possibility to load symbols globally with DSO.
1019 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1021 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1022 control of the error stack.
1025 *) Add support for STORE in ENGINE.
1028 *) Add the STORE type. The intention is to provide a common interface
1029 to certificate and key stores, be they simple file-based stores, or
1030 HSM-type store, or LDAP stores, or...
1031 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1034 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1035 pass a list of arguments to any function as well as provide a way
1036 for a function to pass data back to the caller.
1039 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1040 works like BUF_strdup() but can be used to duplicate a portion of
1041 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1045 *) Add the function sk_find_ex() which works like sk_find(), but will
1046 return an index to an element even if an exact match couldn't be
1047 found. The index is guaranteed to point at the element where the
1048 searched-for key would be inserted to preserve sorting order.
1051 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1052 takes an extra flags argument for optional functionality. Currently,
1053 the following flags are defined:
1055 OBJ_BSEARCH_VALUE_ON_NOMATCH
1056 This one gets OBJ_bsearch_ex() to return a pointer to the first
1057 element where the comparing function returns a negative or zero
1060 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1061 This one gets OBJ_bsearch_ex() to return a pointer to the first
1062 element where the comparing function returns zero. This is useful
1063 if there are more than one element where the comparing function
1067 *) Make it possible to create self-signed certificates with 'openssl ca'
1068 in such a way that the self-signed certificate becomes part of the
1069 CA database and uses the same mechanisms for serial number generation
1070 as all other certificate signing. The new flag '-selfsign' enables
1071 this functionality. Adapt CA.sh and CA.pl.in.
1074 *) Add functionality to check the public key of a certificate request
1075 against a given private. This is useful to check that a certificate
1076 request can be signed by that key (self-signing).
1079 *) Make it possible to have multiple active certificates with the same
1080 subject in the CA index file. This is done only if the keyword
1081 'unique_subject' is set to 'no' in the main CA section (default
1082 if 'CA_default') of the configuration file. The value is saved
1083 with the database itself in a separate index attribute file,
1084 named like the index file with '.attr' appended to the name.
1087 *) Generate muti valued AVAs using '+' notation in config files for
1091 *) Support for nameConstraints certificate extension.
1094 *) Support for policyConstraints certificate extension.
1097 *) Support for policyMappings certificate extension.
1100 *) Make sure the default DSA_METHOD implementation only uses its
1101 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1102 and change its own handlers to be NULL so as to remove unnecessary
1103 indirection. This lets alternative implementations fallback to the
1104 default implementation more easily.
1107 *) Support for directoryName in GeneralName related extensions
1111 *) Make it possible to link applications using Makefile.shared.
1112 Make that possible even when linking against static libraries!
1115 *) Support for single pass processing for S/MIME signing. This now
1116 means that S/MIME signing can be done from a pipe, in addition
1117 cleartext signing (multipart/signed type) is effectively streaming
1118 and the signed data does not need to be all held in memory.
1120 This is done with a new flag PKCS7_STREAM. When this flag is set
1121 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1122 is done after the data is output (and digests calculated) in
1123 SMIME_write_PKCS7().
1126 *) Add full support for -rpath/-R, both in shared libraries and
1127 applications, at least on the platforms where it's known how
1131 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1132 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1133 will now compute a table of multiples of the generator that
1134 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1135 faster (notably in the case of a single point multiplication,
1136 scalar * generator).
1137 [Nils Larsch, Bodo Moeller]
1139 *) IPv6 support for certificate extensions. The various extensions
1140 which use the IP:a.b.c.d can now take IPv6 addresses using the
1141 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1145 *) Added an ENGINE that implements RSA by performing private key
1146 exponentiations with the GMP library. The conversions to and from
1147 GMP's mpz_t format aren't optimised nor are any montgomery forms
1148 cached, and on x86 it appears OpenSSL's own performance has caught up.
1149 However there are likely to be other architectures where GMP could
1150 provide a boost. This ENGINE is not built in by default, but it can be
1151 specified at Configure time and should be accompanied by the necessary
1152 linker additions, eg;
1153 ./config -DOPENSSL_USE_GMP -lgmp
1156 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1157 testing availability of engines with "-t" - the old behaviour is
1158 produced by increasing the feature's verbosity with "-tt".
1161 *) ECDSA routines: under certain error conditions uninitialized BN objects
1162 could be freed. Solution: make sure initialization is performed early
1163 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1167 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1168 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1169 software implementations. For DSA and DH, parameter generation can
1170 also be overriden by providing the appropriate method callbacks.
1173 *) Change the "progress" mechanism used in key-generation and
1174 primality testing to functions that take a new BN_GENCB pointer in
1175 place of callback/argument pairs. The new API functions have "_ex"
1176 postfixes and the older functions are reimplemented as wrappers for
1177 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1178 declarations of the old functions to help (graceful) attempts to
1179 migrate to the new functions. Also, the new key-generation API
1180 functions operate on a caller-supplied key-structure and return
1181 success/failure rather than returning a key or NULL - this is to
1182 help make "keygen" another member function of RSA_METHOD etc.
1184 Example for using the new callback interface:
1186 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1190 BN_GENCB_set(&my_cb, my_callback, my_arg);
1192 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1193 /* For the meaning of a, b in calls to my_callback(), see the
1194 * documentation of the function that calls the callback.
1195 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1196 * my_callback should return 1 if it wants BN_is_prime_ex()
1197 * to continue, or 0 to stop.
1202 *) Change the ZLIB compression method to be stateful, and make it
1203 available to TLS with the number defined in
1204 draft-ietf-tls-compression-04.txt.
1207 *) Add the ASN.1 structures and functions for CertificatePair, which
1208 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1210 CertificatePair ::= SEQUENCE {
1211 forward [0] Certificate OPTIONAL,
1212 reverse [1] Certificate OPTIONAL,
1213 -- at least one of the pair shall be present -- }
1215 Also implement the PEM functions to read and write certificate
1216 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1218 This needed to be defined, mostly for the sake of the LDAP
1219 attribute crossCertificatePair, but may prove useful elsewhere as
1223 *) Make it possible to inhibit symlinking of shared libraries in
1224 Makefile.shared, for Cygwin's sake.
1227 *) Extend the BIGNUM API by creating a function
1228 void BN_set_negative(BIGNUM *a, int neg);
1229 and a macro that behave like
1230 int BN_is_negative(const BIGNUM *a);
1232 to avoid the need to access 'a->neg' directly in applications.
1235 *) Implement fast modular reduction for pseudo-Mersenne primes
1236 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1237 EC_GROUP_new_curve_GFp() will now automatically use this
1239 [Nils Larsch <nla@trustcenter.de>]
1241 *) Add new lock type (CRYPTO_LOCK_BN).
1244 *) Change the ENGINE framework to automatically load engines
1245 dynamically from specific directories unless they could be
1246 found to already be built in or loaded. Move all the
1247 current engines except for the cryptodev one to a new
1249 The engines in engines/ are built as shared libraries if
1250 the "shared" options was given to ./Configure or ./config.
1251 Otherwise, they are inserted in libcrypto.a.
1252 /usr/local/ssl/engines is the default directory for dynamic
1253 engines, but that can be overriden at configure time through
1254 the usual use of --prefix and/or --openssldir, and at run
1255 time with the environment variable OPENSSL_ENGINES.
1256 [Geoff Thorpe and Richard Levitte]
1258 *) Add Makefile.shared, a helper makefile to build shared
1259 libraries. Addapt Makefile.org.
1262 *) Add version info to Win32 DLLs.
1263 [Peter 'Luna' Runestig" <peter@runestig.com>]
1265 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1266 can be added using this API to created arbitrary PKCS#12
1267 files while avoiding the low level API.
1269 New options to PKCS12_create(), key or cert can be NULL and
1270 will then be omitted from the output file. The encryption
1271 algorithm NIDs can be set to -1 for no encryption, the mac
1272 iteration count can be set to 0 to omit the mac.
1274 Enhance pkcs12 utility by making the -nokeys and -nocerts
1275 options work when creating a PKCS#12 file. New option -nomac
1276 to omit the mac, NONE can be set for an encryption algorithm.
1277 New code is modified to use the enhanced PKCS12_create()
1278 instead of the low level API.
1281 *) Extend ASN1 encoder to support indefinite length constructed
1282 encoding. This can output sequences tags and octet strings in
1283 this form. Modify pk7_asn1.c to support indefinite length
1284 encoding. This is experimental and needs additional code to
1285 be useful, such as an ASN1 bio and some enhanced streaming
1288 Extend template encode functionality so that tagging is passed
1289 down to the template encoder.
1292 *) Let 'openssl req' fail if an argument to '-newkey' is not
1293 recognized instead of using RSA as a default.
1296 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1297 As these are not official, they are not included in "ALL";
1298 the "ECCdraft" ciphersuite group alias can be used to select them.
1299 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1301 *) Add ECDH engine support.
1302 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1304 *) Add ECDH in new directory crypto/ecdh/.
1305 [Douglas Stebila (Sun Microsystems Laboratories)]
1307 *) Let BN_rand_range() abort with an error after 100 iterations
1308 without success (which indicates a broken PRNG).
1311 *) Change BN_mod_sqrt() so that it verifies that the input value
1312 is really the square of the return value. (Previously,
1313 BN_mod_sqrt would show GIGO behaviour.)
1316 *) Add named elliptic curves over binary fields from X9.62, SECG,
1317 and WAP/WTLS; add OIDs that were still missing.
1319 [Sheueling Chang Shantz and Douglas Stebila
1320 (Sun Microsystems Laboratories)]
1322 *) Extend the EC library for elliptic curves over binary fields
1323 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1326 EC_GF2m_simple_method
1330 EC_GROUP_new_curve_GF2m
1331 EC_GROUP_set_curve_GF2m
1332 EC_GROUP_get_curve_GF2m
1333 EC_POINT_set_affine_coordinates_GF2m
1334 EC_POINT_get_affine_coordinates_GF2m
1335 EC_POINT_set_compressed_coordinates_GF2m
1337 Point compression for binary fields is disabled by default for
1338 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1341 As binary polynomials are represented as BIGNUMs, various members
1342 of the EC_GROUP and EC_POINT data structures can be shared
1343 between the implementations for prime fields and binary fields;
1344 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1345 are essentially identical to their ..._GFp counterparts.
1346 (For simplicity, the '..._GFp' prefix has been dropped from
1347 various internal method names.)
1349 An internal 'field_div' method (similar to 'field_mul' and
1350 'field_sqr') has been added; this is used only for binary fields.
1352 [Sheueling Chang Shantz and Douglas Stebila
1353 (Sun Microsystems Laboratories)]
1355 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1356 through methods ('mul', 'precompute_mult').
1358 The generic implementations (now internally called 'ec_wNAF_mul'
1359 and 'ec_wNAF_precomputed_mult') remain the default if these
1360 methods are undefined.
1362 [Sheueling Chang Shantz and Douglas Stebila
1363 (Sun Microsystems Laboratories)]
1365 *) New function EC_GROUP_get_degree, which is defined through
1366 EC_METHOD. For curves over prime fields, this returns the bit
1367 length of the modulus.
1369 [Sheueling Chang Shantz and Douglas Stebila
1370 (Sun Microsystems Laboratories)]
1372 *) New functions EC_GROUP_dup, EC_POINT_dup.
1373 (These simply call ..._new and ..._copy).
1375 [Sheueling Chang Shantz and Douglas Stebila
1376 (Sun Microsystems Laboratories)]
1378 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1379 Polynomials are represented as BIGNUMs (where the sign bit is not
1380 used) in the following functions [macros]:
1383 BN_GF2m_sub [= BN_GF2m_add]
1384 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1385 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1386 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1388 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1389 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1390 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1391 BN_GF2m_cmp [= BN_ucmp]
1393 (Note that only the 'mod' functions are actually for fields GF(2^m).
1394 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1396 For some functions, an the irreducible polynomial defining a
1397 field can be given as an 'unsigned int[]' with strictly
1398 decreasing elements giving the indices of those bits that are set;
1399 i.e., p[] represents the polynomial
1400 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1402 p[0] > p[1] > ... > p[k] = 0.
1403 This applies to the following functions:
1408 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1409 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1411 BN_GF2m_mod_sqrt_arr
1412 BN_GF2m_mod_solve_quad_arr
1416 Conversion can be performed by the following functions:
1421 bntest.c has additional tests for binary polynomial arithmetic.
1423 Two implementations for BN_GF2m_mod_div() are available.
1424 The default algorithm simply uses BN_GF2m_mod_inv() and
1425 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1426 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1427 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1429 [Sheueling Chang Shantz and Douglas Stebila
1430 (Sun Microsystems Laboratories)]
1432 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1433 functionality is disabled at compile-time.
1434 [Douglas Stebila <douglas.stebila@sun.com>]
1436 *) Change default behaviour of 'openssl asn1parse' so that more
1437 information is visible when viewing, e.g., a certificate:
1439 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1440 mode the content of non-printable OCTET STRINGs is output in a
1441 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1442 avoid the appearance of a printable string.
1443 [Nils Larsch <nla@trustcenter.de>]
1445 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1447 EC_GROUP_set_asn1_flag()
1448 EC_GROUP_get_asn1_flag()
1449 EC_GROUP_set_point_conversion_form()
1450 EC_GROUP_get_point_conversion_form()
1451 These control ASN1 encoding details:
1452 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1453 has been set to OPENSSL_EC_NAMED_CURVE.
1454 - Points are encoded in uncompressed form by default; options for
1455 asn1_for are as for point2oct, namely
1456 POINT_CONVERSION_COMPRESSED
1457 POINT_CONVERSION_UNCOMPRESSED
1458 POINT_CONVERSION_HYBRID
1460 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1463 EC_GROUP_get0_seed()
1464 EC_GROUP_get_seed_len()
1465 This is used only for ASN1 purposes (so far).
1466 [Nils Larsch <nla@trustcenter.de>]
1468 *) Add 'field_type' member to EC_METHOD, which holds the NID
1469 of the appropriate field type OID. The new function
1470 EC_METHOD_get_field_type() returns this value.
1471 [Nils Larsch <nla@trustcenter.de>]
1476 EC_POINT_point2hex()
1477 EC_POINT_hex2point()
1478 providing useful interfaces to EC_POINT_point2oct() and
1479 EC_POINT_oct2point().
1480 [Nils Larsch <nla@trustcenter.de>]
1482 *) Change internals of the EC library so that the functions
1483 EC_GROUP_set_generator()
1484 EC_GROUP_get_generator()
1485 EC_GROUP_get_order()
1486 EC_GROUP_get_cofactor()
1487 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1488 to methods, which would lead to unnecessary code duplication when
1489 adding different types of curves.
1490 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1492 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1493 arithmetic, and such that modified wNAFs are generated
1494 (which avoid length expansion in many cases).
1497 *) Add a function EC_GROUP_check_discriminant() (defined via
1498 EC_METHOD) that verifies that the curve discriminant is non-zero.
1500 Add a function EC_GROUP_check() that makes some sanity tests
1501 on a EC_GROUP, its generator and order. This includes
1502 EC_GROUP_check_discriminant().
1503 [Nils Larsch <nla@trustcenter.de>]
1505 *) Add ECDSA in new directory crypto/ecdsa/.
1507 Add applications 'openssl ecparam' and 'openssl ecdsa'
1508 (these are based on 'openssl dsaparam' and 'openssl dsa').
1510 ECDSA support is also included in various other files across the
1511 library. Most notably,
1512 - 'openssl req' now has a '-newkey ecdsa:file' option;
1513 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1514 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1515 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1516 them suitable for ECDSA where domain parameters must be
1517 extracted before the specific public key;
1518 - ECDSA engine support has been added.
1519 [Nils Larsch <nla@trustcenter.de>]
1521 *) Include some named elliptic curves, and add OIDs from X9.62,
1522 SECG, and WAP/WTLS. Each curve can be obtained from the new
1524 EC_GROUP_new_by_curve_name(),
1525 and the list of available named curves can be obtained with
1526 EC_get_builtin_curves().
1527 Also add a 'curve_name' member to EC_GROUP objects, which can be
1529 EC_GROUP_set_curve_name()
1530 EC_GROUP_get_curve_name()
1531 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1533 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1534 was actually never needed) and in BN_mul(). The removal in BN_mul()
1535 required a small change in bn_mul_part_recursive() and the addition
1536 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1537 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1538 bn_sub_words() and bn_add_words() except they take arrays with
1542 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1544 *) In the SSL/TLS server implementation, be strict about session ID
1545 context matching (which matters if an application uses a single
1546 external cache for different purposes). Previously,
1547 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1548 set. This did ensure strict client verification, but meant that,
1549 with applications using a single external cache for quite
1550 different requirements, clients could circumvent ciphersuite
1551 restrictions for a given session ID context by starting a session
1552 in a different context.
1555 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1557 *) Cleanse PEM buffers before freeing them since they may contain
1559 [Benjamin Bennett <ben@psc.edu>]
1561 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1562 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1563 authentication-only ciphersuites.
1566 *) Since AES128 and AES256 share a single mask bit in the logic of
1567 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1568 kludge to work properly if AES128 is available and AES256 isn't.
1571 *) Expand security boundary to match 1.1.1 module.
1574 *) Remove redundant features: hash file source, editing of test vectors
1575 modify fipsld to use external fips_premain.c signature.
1578 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1579 run algorithm test programs.
1582 *) Make algorithm test programs more tolerant of whitespace.
1585 *) Have SSL/TLS server implementation tolerate "mismatched" record
1586 protocol version while receiving ClientHello even if the
1587 ClientHello is fragmented. (The server can't insist on the
1588 particular protocol version it has chosen before the ServerHello
1589 message has informed the client about his choice.)
1592 *) Load error codes if they are not already present instead of using a
1593 static variable. This allows them to be cleanly unloaded and reloaded.
1596 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1598 *) Introduce limits to prevent malicious keys being able to
1599 cause a denial of service. (CVE-2006-2940)
1600 [Steve Henson, Bodo Moeller]
1602 *) Fix ASN.1 parsing of certain invalid structures that can result
1603 in a denial of service. (CVE-2006-2937) [Steve Henson]
1605 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1606 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1608 *) Fix SSL client code which could crash if connecting to a
1609 malicious SSLv2 server. (CVE-2006-4343)
1610 [Tavis Ormandy and Will Drewry, Google Security Team]
1612 *) Change ciphersuite string processing so that an explicit
1613 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1614 will no longer include "AES128-SHA"), and any other similar
1615 ciphersuite (same bitmap) from *other* protocol versions (so that
1616 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1617 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1618 changes from 0.9.8b and 0.9.8d.
1621 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1623 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1624 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1626 *) Change the Unix randomness entropy gathering to use poll() when
1627 possible instead of select(), since the latter has some
1628 undesirable limitations.
1629 [Darryl Miles via Richard Levitte and Bodo Moeller]
1631 *) Disable rogue ciphersuites:
1633 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1634 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1635 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1637 The latter two were purportedly from
1638 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1641 Also deactive the remaining ciphersuites from
1642 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1643 unofficial, and the ID has long expired.
1646 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1647 dual-core machines) and other potential thread-safety issues.
1650 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1652 *) Adapt fipsld and the build system to link against the validated FIPS
1653 module in FIPS mode.
1656 *) Fixes for VC++ 2005 build under Windows.
1659 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1660 from a Windows bash shell such as MSYS. It is autodetected from the
1661 "config" script when run from a VC++ environment. Modify standard VC++
1662 build to use fipscanister.o from the GNU make build.
1665 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1667 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1668 The value now differs depending on if you build for FIPS or not.
1669 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1670 safely run with a non-FIPSed libcrypto, as it may crash because of
1671 the difference induced by this change.
1674 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1676 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1677 (part of SSL_OP_ALL). This option used to disable the
1678 countermeasure against man-in-the-middle protocol-version
1679 rollback in the SSL 2.0 server implementation, which is a bad
1680 idea. (CVE-2005-2969)
1682 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1683 for Information Security, National Institute of Advanced Industrial
1684 Science and Technology [AIST], Japan)]
1686 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1687 mainly for FIPS compliance and not fully integrated at this stage.
1690 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1691 the exponentiation using a fixed-length exponent. (Otherwise,
1692 the information leaked through timing could expose the secret key
1693 after many signatures; cf. Bleichenbacher's attack on DSA with
1697 *) Make a new fixed-window mod_exp implementation the default for
1698 RSA, DSA, and DH private-key operations so that the sequence of
1699 squares and multiplies and the memory access pattern are
1700 independent of the particular secret key. This will mitigate
1701 cache-timing and potential related attacks.
1703 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1704 and this is automatically used by BN_mod_exp_mont() if the new flag
1705 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1706 will use this BN flag for private exponents unless the flag
1707 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1708 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1710 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1712 *) Change the client implementation for SSLv23_method() and
1713 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1714 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1715 (Previously, the SSL 2.0 backwards compatible Client Hello
1716 message format would be used even with SSL_OP_NO_SSLv2.)
1719 *) Add support for smime-type MIME parameter in S/MIME messages which some
1723 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1724 a threadsafe manner. Modify rsa code to use new function and add calls
1725 to dsa and dh code (which had race conditions before).
1728 *) Include the fixed error library code in the C error file definitions
1729 instead of fixing them up at runtime. This keeps the error code
1730 structures constant.
1733 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1735 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1738 *) Fixes for newer kerberos headers. NB: the casts are needed because
1739 the 'length' field is signed on one version and unsigned on another
1740 with no (?) obvious way to tell the difference, without these VC++
1741 complains. Also the "definition" of FAR (blank) is no longer included
1742 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1743 some needed definitions.
1746 *) Undo Cygwin change.
1749 *) Added support for proxy certificates according to RFC 3820.
1750 Because they may be a security thread to unaware applications,
1751 they must be explicitely allowed in run-time. See
1752 docs/HOWTO/proxy_certificates.txt for further information.
1755 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1757 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1758 server and client random values. Previously
1759 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1760 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1762 This change has negligible security impact because:
1764 1. Server and client random values still have 24 bytes of pseudo random
1767 2. Server and client random values are sent in the clear in the initial
1770 3. The master secret is derived using the premaster secret (48 bytes in
1771 size for static RSA ciphersuites) as well as client server and random
1774 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1777 [Stephen Henson, reported by UK NISCC]
1779 *) Use Windows randomness collection on Cygwin.
1782 *) Fix hang in EGD/PRNGD query when communication socket is closed
1783 prematurely by EGD/PRNGD.
1784 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1786 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1789 *) Back-port of selected performance improvements from development
1790 branch, as well as improved support for PowerPC platforms.
1793 *) Add lots of checks for memory allocation failure, error codes to indicate
1794 failure and freeing up memory if a failure occurs.
1795 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1797 *) Add new -passin argument to dgst.
1800 *) Perform some character comparisons of different types in X509_NAME_cmp:
1801 this is needed for some certificates that reencode DNs into UTF8Strings
1802 (in violation of RFC3280) and can't or wont issue name rollover
1806 *) Make an explicit check during certificate validation to see that
1807 the CA setting in each certificate on the chain is correct. As a
1808 side effect always do the following basic checks on extensions,
1809 not just when there's an associated purpose to the check:
1811 - if there is an unhandled critical extension (unless the user
1812 has chosen to ignore this fault)
1813 - if the path length has been exceeded (if one is set at all)
1814 - that certain extensions fit the associated purpose (if one has
1818 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1820 *) Avoid a race condition when CRLs are checked in a multi threaded
1821 environment. This would happen due to the reordering of the revoked
1822 entries during signature checking and serial number lookup. Now the
1823 encoding is cached and the serial number sort performed under a lock.
1824 Add new STACK function sk_is_sorted().
1827 *) Add Delta CRL to the extension code.
1830 *) Various fixes to s3_pkt.c so alerts are sent properly.
1831 [David Holmes <d.holmes@f5.com>]
1833 *) Reduce the chances of duplicate issuer name and serial numbers (in
1834 violation of RFC3280) using the OpenSSL certificate creation utilities.
1835 This is done by creating a random 64 bit value for the initial serial
1836 number when a serial number file is created or when a self signed
1837 certificate is created using 'openssl req -x509'. The initial serial
1838 number file is created using 'openssl x509 -next_serial' in CA.pl
1839 rather than being initialized to 1.
1842 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1844 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1845 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1846 [Joe Orton, Steve Henson]
1848 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1850 [Joe Orton, Steve Henson]
1852 *) Make it possible to have multiple active certificates with the same
1853 subject in the CA index file. This is done only if the keyword
1854 'unique_subject' is set to 'no' in the main CA section (default
1855 if 'CA_default') of the configuration file. The value is saved
1856 with the database itself in a separate index attribute file,
1857 named like the index file with '.attr' appended to the name.
1860 *) X509 verify fixes. Disable broken certificate workarounds when
1861 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1862 keyUsage extension present. Don't accept CRLs with unhandled critical
1863 extensions: since verify currently doesn't process CRL extensions this
1864 rejects a CRL with *any* critical extensions. Add new verify error codes
1868 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1869 A clarification of RFC2560 will require the use of OCTET STRINGs and
1870 some implementations cannot handle the current raw format. Since OpenSSL
1871 copies and compares OCSP nonces as opaque blobs without any attempt at
1872 parsing them this should not create any compatibility issues.
1875 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1876 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1877 this HMAC (and other) operations are several times slower than OpenSSL
1881 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1882 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1884 *) Use the correct content when signing type "other".
1887 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1889 *) Fix various bugs revealed by running the NISCC test suite:
1891 Stop out of bounds reads in the ASN1 code when presented with
1892 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1894 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1896 If verify callback ignores invalid public key errors don't try to check
1897 certificate signature with the NULL public key.
1901 *) New -ignore_err option in ocsp application to stop the server
1902 exiting on the first error in a request.
1905 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1906 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1910 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1911 extra data after the compression methods not only for TLS 1.0
1912 but also for SSL 3.0 (as required by the specification).
1913 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1915 *) Change X509_certificate_type() to mark the key as exported/exportable
1916 when it's 512 *bits* long, not 512 bytes.
1919 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1920 blocks during encryption.
1923 *) Various fixes to base64 BIO and non blocking I/O. On write
1924 flushes were not handled properly if the BIO retried. On read
1925 data was not being buffered properly and had various logic bugs.
1926 This also affects blocking I/O when the data being decoded is a
1930 *) Various S/MIME bugfixes and compatibility changes:
1931 output correct application/pkcs7 MIME type if
1932 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1933 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1934 of files as .eml work). Correctly handle very long lines in MIME
1938 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1940 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1941 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1942 a protocol version number mismatch like a decryption error
1943 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1946 *) Turn on RSA blinding by default in the default implementation
1947 to avoid a timing attack. Applications that don't want it can call
1948 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1949 They would be ill-advised to do so in most cases.
1950 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1952 *) Change RSA blinding code so that it works when the PRNG is not
1953 seeded (in this case, the secret RSA exponent is abused as
1954 an unpredictable seed -- if it is not unpredictable, there
1955 is no point in blinding anyway). Make RSA blinding thread-safe
1956 by remembering the creator's thread ID in rsa->blinding and
1957 having all other threads use local one-time blinding factors
1958 (this requires more computation than sharing rsa->blinding, but
1959 avoids excessive locking; and if an RSA object is not shared
1960 between threads, blinding will still be very fast).
1963 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1964 ENGINE as defaults for all supported algorithms irrespective of
1965 the 'flags' parameter. 'flags' is now honoured, so applications
1966 should make sure they are passing it correctly.
1969 *) Target "mingw" now allows native Windows code to be generated in
1970 the Cygwin environment as well as with the MinGW compiler.
1973 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1975 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1976 via timing by performing a MAC computation even if incorrrect
1977 block cipher padding has been found. This is a countermeasure
1978 against active attacks where the attacker has to distinguish
1979 between bad padding and a MAC verification error. (CVE-2003-0078)
1981 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1982 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1983 Martin Vuagnoux (EPFL, Ilion)]
1985 *) Make the no-err option work as intended. The intention with no-err
1986 is not to have the whole error stack handling routines removed from
1987 libcrypto, it's only intended to remove all the function name and
1988 reason texts, thereby removing some of the footprint that may not
1989 be interesting if those errors aren't displayed anyway.
1991 NOTE: it's still possible for any application or module to have it's
1992 own set of error texts inserted. The routines are there, just not
1993 used by default when no-err is given.
1996 *) Add support for FreeBSD on IA64.
1997 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1999 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2000 Kerberos function mit_des_cbc_cksum(). Before this change,
2001 the value returned by DES_cbc_cksum() was like the one from
2002 mit_des_cbc_cksum(), except the bytes were swapped.
2003 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2005 *) Allow an application to disable the automatic SSL chain building.
2006 Before this a rather primitive chain build was always performed in
2007 ssl3_output_cert_chain(): an application had no way to send the
2008 correct chain if the automatic operation produced an incorrect result.
2010 Now the chain builder is disabled if either:
2012 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2014 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2016 The reasoning behind this is that an application would not want the
2017 auto chain building to take place if extra chain certificates are
2018 present and it might also want a means of sending no additional
2019 certificates (for example the chain has two certificates and the
2023 *) Add the possibility to build without the ENGINE framework.
2024 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2026 *) Under Win32 gmtime() can return NULL: check return value in
2027 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2030 *) DSA routines: under certain error conditions uninitialized BN objects
2031 could be freed. Solution: make sure initialization is performed early
2032 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2033 Nils Larsch <nla@trustcenter.de> via PR#459)
2036 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2037 checked on reconnect on the client side, therefore session resumption
2038 could still fail with a "ssl session id is different" error. This
2039 behaviour is masked when SSL_OP_ALL is used due to
2040 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2041 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2042 followup to PR #377.
2045 *) IA-32 assembler support enhancements: unified ELF targets, support
2046 for SCO/Caldera platforms, fix for Cygwin shared build.
2049 *) Add support for FreeBSD on sparc64. As a consequence, support for
2050 FreeBSD on non-x86 processors is separate from x86 processors on
2051 the config script, much like the NetBSD support.
2052 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2054 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2056 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2059 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2060 code (06) was taken as the first octet of the session ID and the last
2061 octet was ignored consequently. As a result SSLv2 client side session
2062 caching could not have worked due to the session ID mismatch between
2064 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2068 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2069 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2073 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2074 seems that in spite of existing for more than a year, many application
2075 author have done nothing to provide the necessary callbacks, which
2076 means that this particular engine will not work properly anywhere.
2077 This is a very unfortunate situation which forces us, in the name
2078 of usability, to give the hw_ncipher.c a static lock, which is part
2080 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2081 appear in 0.9.8 or later. We EXPECT application authors to have
2082 dealt properly with this when 0.9.8 is released (unless we actually
2083 make such changes in the libcrypto locking code that changes will
2084 have to be made anyway).
2087 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2088 octets have been read, EOF or an error occurs. Without this change
2089 some truncated ASN1 structures will not produce an error.
2092 *) Disable Heimdal support, since it hasn't been fully implemented.
2093 Still give the possibility to force the use of Heimdal, but with
2094 warnings and a request that patches get sent to openssl-dev.
2097 *) Add the VC-CE target, introduce the WINCE sysname, and add
2098 INSTALL.WCE and appropriate conditionals to make it build.
2099 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2101 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2102 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2103 edit numbers of the version.
2104 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2106 *) Introduce safe string copy and catenation functions
2107 (BUF_strlcpy() and BUF_strlcat()).
2108 [Ben Laurie (CHATS) and Richard Levitte]
2110 *) Avoid using fixed-size buffers for one-line DNs.
2111 [Ben Laurie (CHATS)]
2113 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2114 resizing buffers containing secrets, and use where appropriate.
2115 [Ben Laurie (CHATS)]
2117 *) Avoid using fixed size buffers for configuration file location.
2118 [Ben Laurie (CHATS)]
2120 *) Avoid filename truncation for various CA files.
2121 [Ben Laurie (CHATS)]
2123 *) Use sizeof in preference to magic numbers.
2124 [Ben Laurie (CHATS)]
2126 *) Avoid filename truncation in cert requests.
2127 [Ben Laurie (CHATS)]
2129 *) Add assertions to check for (supposedly impossible) buffer
2131 [Ben Laurie (CHATS)]
2133 *) Don't cache truncated DNS entries in the local cache (this could
2134 potentially lead to a spoofing attack).
2135 [Ben Laurie (CHATS)]
2137 *) Fix various buffers to be large enough for hex/decimal
2138 representations in a platform independent manner.
2139 [Ben Laurie (CHATS)]
2141 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2142 resizing buffers containing secrets, and use where appropriate.
2143 [Ben Laurie (CHATS)]
2145 *) Add BIO_indent() to avoid much slightly worrying code to do
2147 [Ben Laurie (CHATS)]
2149 *) Convert sprintf()/BIO_puts() to BIO_printf().
2150 [Ben Laurie (CHATS)]
2152 *) buffer_gets() could terminate with the buffer only half
2154 [Ben Laurie (CHATS)]
2156 *) Add assertions to prevent user-supplied crypto functions from
2157 overflowing internal buffers by having large block sizes, etc.
2158 [Ben Laurie (CHATS)]
2160 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2162 [Ben Laurie (CHATS)]
2164 *) Eliminate unused copy of key in RC4.
2165 [Ben Laurie (CHATS)]
2167 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2168 [Ben Laurie (CHATS)]
2170 *) Fix off-by-one error in EGD path.
2171 [Ben Laurie (CHATS)]
2173 *) If RANDFILE path is too long, ignore instead of truncating.
2174 [Ben Laurie (CHATS)]
2176 *) Eliminate unused and incorrectly sized X.509 structure
2178 [Ben Laurie (CHATS)]
2180 *) Eliminate unused and dangerous function knumber().
2181 [Ben Laurie (CHATS)]
2183 *) Eliminate unused and dangerous structure, KSSL_ERR.
2184 [Ben Laurie (CHATS)]
2186 *) Protect against overlong session ID context length in an encoded
2187 session object. Since these are local, this does not appear to be
2189 [Ben Laurie (CHATS)]
2191 *) Change from security patch (see 0.9.6e below) that did not affect
2192 the 0.9.6 release series:
2194 Remote buffer overflow in SSL3 protocol - an attacker could
2195 supply an oversized master key in Kerberos-enabled versions.
2197 [Ben Laurie (CHATS)]
2199 *) Change the SSL kerb5 codes to match RFC 2712.
2202 *) Make -nameopt work fully for req and add -reqopt switch.
2203 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2205 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2206 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2208 *) Make sure tests can be performed even if the corresponding algorithms
2209 have been removed entirely. This was also the last step to make
2210 OpenSSL compilable with DJGPP under all reasonable conditions.
2211 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2213 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2214 to allow version independent disabling of normally unselected ciphers,
2215 which may be activated as a side-effect of selecting a single cipher.
2217 (E.g., cipher list string "RSA" enables ciphersuites that are left
2218 out of "ALL" because they do not provide symmetric encryption.
2219 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2220 [Lutz Jaenicke, Bodo Moeller]
2222 *) Add appropriate support for separate platform-dependent build
2223 directories. The recommended way to make a platform-dependent
2224 build directory is the following (tested on Linux), maybe with
2227 # Place yourself outside of the OpenSSL source tree. In
2228 # this example, the environment variable OPENSSL_SOURCE
2229 # is assumed to contain the absolute OpenSSL source directory.
2230 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2231 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2232 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2233 mkdir -p `dirname $F`
2234 ln -s $OPENSSL_SOURCE/$F $F
2237 To be absolutely sure not to disturb the source tree, a "make clean"
2238 is a good thing. If it isn't successfull, don't worry about it,
2239 it probably means the source directory is very clean.
2242 *) Make sure any ENGINE control commands make local copies of string
2243 pointers passed to them whenever necessary. Otherwise it is possible
2244 the caller may have overwritten (or deallocated) the original string
2245 data when a later ENGINE operation tries to use the stored values.
2246 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2248 *) Improve diagnostics in file reading and command-line digests.
2249 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2251 *) Add AES modes CFB and OFB to the object database. Correct an
2252 error in AES-CFB decryption.
2255 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2256 allows existing EVP_CIPHER_CTX structures to be reused after
2257 calling EVP_*Final(). This behaviour is used by encryption
2258 BIOs and some applications. This has the side effect that
2259 applications must explicitly clean up cipher contexts with
2260 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2263 *) Check the values of dna and dnb in bn_mul_recursive before calling
2264 bn_mul_comba (a non zero value means the a or b arrays do not contain
2265 n2 elements) and fallback to bn_mul_normal if either is not zero.
2268 *) Fix escaping of non-ASCII characters when using the -subj option
2269 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2272 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2273 form for "surname", serialNumber has no short form.
2274 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2275 therefore remove "mail" short name for "internet 7".
2276 The OID for unique identifiers in X509 certificates is
2277 x500UniqueIdentifier, not uniqueIdentifier.
2278 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2281 *) Add an "init" command to the ENGINE config module and auto initialize
2282 ENGINEs. Without any "init" command the ENGINE will be initialized
2283 after all ctrl commands have been executed on it. If init=1 the
2284 ENGINE is initailized at that point (ctrls before that point are run
2285 on the uninitialized ENGINE and after on the initialized one). If
2286 init=0 then the ENGINE will not be iniatialized at all.
2289 *) Fix the 'app_verify_callback' interface so that the user-defined
2290 argument is actually passed to the callback: In the
2291 SSL_CTX_set_cert_verify_callback() prototype, the callback
2292 declaration has been changed from
2295 int (*cb)(X509_STORE_CTX *,void *);
2296 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2297 i=s->ctx->app_verify_callback(&ctx)
2298 has been changed into
2299 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2301 To update applications using SSL_CTX_set_cert_verify_callback(),
2302 a dummy argument can be added to their callback functions.
2303 [D. K. Smetters <smetters@parc.xerox.com>]
2305 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2306 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2308 *) Add and OPENSSL_LOAD_CONF define which will cause
2309 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2310 This allows older applications to transparently support certain
2311 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2312 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2313 load the config file and OPENSSL_add_all_algorithms_conf() which will
2314 always load it have also been added.
2317 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2318 Adjust NIDs and EVP layer.
2319 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2321 *) Config modules support in openssl utility.
2323 Most commands now load modules from the config file,
2324 though in a few (such as version) this isn't done
2325 because it couldn't be used for anything.
2327 In the case of ca and req the config file used is
2328 the same as the utility itself: that is the -config
2329 command line option can be used to specify an
2333 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2334 use "openssl_conf" if filename is NULL use default openssl config file.
2337 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2338 config section name. Add a new flag to tolerate a missing config file
2339 and move code to CONF_modules_load_file().
2342 *) Support for crypto accelerator cards from Accelerated Encryption
2343 Processing, www.aep.ie. (Use engine 'aep')
2344 The support was copied from 0.9.6c [engine] and adapted/corrected
2345 to work with the new engine framework.
2346 [AEP Inc. and Richard Levitte]
2348 *) Support for SureWare crypto accelerator cards from Baltimore
2349 Technologies. (Use engine 'sureware')
2350 The support was copied from 0.9.6c [engine] and adapted
2351 to work with the new engine framework.
2354 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2355 make the newer ENGINE framework commands for the CHIL engine work.
2356 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2358 *) Make it possible to produce shared libraries on ReliantUNIX.
2359 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2361 *) Add the configuration target debug-linux-ppro.
2362 Make 'openssl rsa' use the general key loading routines
2363 implemented in apps.c, and make those routines able to
2364 handle the key format FORMAT_NETSCAPE and the variant
2366 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2368 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2369 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2371 *) Add -keyform to rsautl, and document -engine.
2372 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2374 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2375 BIO_R_NO_SUCH_FILE error code rather than the generic
2376 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2379 *) Add new functions
2381 ERR_peek_last_error_line
2382 ERR_peek_last_error_line_data.
2383 These are similar to
2386 ERR_peek_error_line_data,
2387 but report on the latest error recorded rather than the first one
2388 still in the error queue.
2389 [Ben Laurie, Bodo Moeller]
2391 *) default_algorithms option in ENGINE config module. This allows things
2393 default_algorithms = ALL
2394 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2397 *) Prelminary ENGINE config module.
2400 *) New experimental application configuration code.
2403 *) Change the AES code to follow the same name structure as all other
2404 symmetric ciphers, and behave the same way. Move everything to
2405 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2406 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2408 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2409 [Ben Laurie and Theo de Raadt]
2411 *) Add option to output public keys in req command.
2412 [Massimiliano Pala madwolf@openca.org]
2414 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2415 (up to about 10% better than before for P-192 and P-224).
2418 *) New functions/macros
2420 SSL_CTX_set_msg_callback(ctx, cb)
2421 SSL_CTX_set_msg_callback_arg(ctx, arg)
2422 SSL_set_msg_callback(ssl, cb)
2423 SSL_set_msg_callback_arg(ssl, arg)
2425 to request calling a callback function
2427 void cb(int write_p, int version, int content_type,
2428 const void *buf, size_t len, SSL *ssl, void *arg)
2430 whenever a protocol message has been completely received
2431 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2432 protocol version according to which the SSL library interprets
2433 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2434 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2435 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2436 specification (change_cipher_spec(20), alert(21), handshake(22)).
2437 'buf' and 'len' point to the actual message, 'ssl' to the
2438 SSL object, and 'arg' is the application-defined value set by
2439 SSL[_CTX]_set_msg_callback_arg().
2441 'openssl s_client' and 'openssl s_server' have new '-msg' options
2442 to enable a callback that displays all protocol messages.
2445 *) Change the shared library support so shared libraries are built as
2446 soon as the corresponding static library is finished, and thereby get
2447 openssl and the test programs linked against the shared library.
2448 This still only happens when the keyword "shard" has been given to
2449 the configuration scripts.
2451 NOTE: shared library support is still an experimental thing, and
2452 backward binary compatibility is still not guaranteed.
2453 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2455 *) Add support for Subject Information Access extension.
2456 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2458 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2459 additional bytes when new memory had to be allocated, not just
2460 when reusing an existing buffer.
2463 *) New command line and configuration option 'utf8' for the req command.
2464 This allows field values to be specified as UTF8 strings.
2467 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2468 runs for the former and machine-readable output for the latter.
2471 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2472 of the e-mail address in the DN (i.e., it will go into a certificate
2473 extension only). The new configuration file option 'email_in_dn = no'
2474 has the same effect.
2475 [Massimiliano Pala madwolf@openca.org]
2477 *) Change all functions with names starting with des_ to be starting
2478 with DES_ instead. Add wrappers that are compatible with libdes,
2479 but are named _ossl_old_des_*. Finally, add macros that map the
2480 des_* symbols to the corresponding _ossl_old_des_* if libdes
2481 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2482 desired, the des_* symbols will be mapped to DES_*, with one
2485 Since we provide two compatibility mappings, the user needs to
2486 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2487 compatibility is desired. The default (i.e., when that macro
2488 isn't defined) is OpenSSL 0.9.6c compatibility.
2490 There are also macros that enable and disable the support of old
2491 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2492 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2493 are defined, the default will apply: to support the old des routines.
2495 In either case, one must include openssl/des.h to get the correct
2496 definitions. Do not try to just include openssl/des_old.h, that
2499 NOTE: This is a major break of an old API into a new one. Software
2500 authors are encouraged to switch to the DES_ style functions. Some
2501 time in the future, des_old.h and the libdes compatibility functions
2502 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2503 default), and then completely removed.
2506 *) Test for certificates which contain unsupported critical extensions.
2507 If such a certificate is found during a verify operation it is
2508 rejected by default: this behaviour can be overridden by either
2509 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2510 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2511 X509_supported_extension() has also been added which returns 1 if a
2512 particular extension is supported.
2515 *) Modify the behaviour of EVP cipher functions in similar way to digests
2516 to retain compatibility with existing code.
2519 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2520 compatibility with existing code. In particular the 'ctx' parameter does
2521 not have to be to be initialized before the call to EVP_DigestInit() and
2522 it is tidied up after a call to EVP_DigestFinal(). New function
2523 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2524 EVP_MD_CTX_copy() changed to not require the destination to be
2525 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2526 requires the destination to be valid.
2528 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2529 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2532 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2533 so that complete 'Handshake' protocol structures are kept in memory
2534 instead of overwriting 'msg_type' and 'length' with 'body' data.
2537 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2538 [Massimo Santin via Richard Levitte]
2540 *) Major restructuring to the underlying ENGINE code. This includes
2541 reduction of linker bloat, separation of pure "ENGINE" manipulation
2542 (initialisation, etc) from functionality dealing with implementations
2543 of specific crypto iterfaces. This change also introduces integrated
2544 support for symmetric ciphers and digest implementations - so ENGINEs
2545 can now accelerate these by providing EVP_CIPHER and EVP_MD
2546 implementations of their own. This is detailed in crypto/engine/README
2547 as it couldn't be adequately described here. However, there are a few
2548 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2549 were changed in the original introduction of ENGINE code have now
2550 reverted back - the hooking from this code to ENGINE is now a good
2551 deal more passive and at run-time, operations deal directly with
2552 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2553 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2554 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2555 they were not being used by the framework as there is no concept of a
2556 BIGNUM_METHOD and they could not be generalised to the new
2557 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2558 ENGINE_cpy() has been removed as it cannot be consistently defined in
2562 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2565 *) Change mkdef.pl to sort symbols that get the same entry number,
2566 and make sure the automatically generated functions ERR_load_*
2567 become part of libeay.num as well.
2570 *) New function SSL_renegotiate_pending(). This returns true once
2571 renegotiation has been requested (either SSL_renegotiate() call
2572 or HelloRequest/ClientHello receveived from the peer) and becomes
2573 false once a handshake has been completed.
2574 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2575 sends a HelloRequest, but does not ensure that a handshake takes
2576 place. SSL_renegotiate_pending() is useful for checking if the
2577 client has followed the request.)
2580 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2581 By default, clients may request session resumption even during
2582 renegotiation (if session ID contexts permit); with this option,
2583 session resumption is possible only in the first handshake.
2585 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2586 more bits available for options that should not be part of
2587 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2590 *) Add some demos for certificate and certificate request creation.
2593 *) Make maximum certificate chain size accepted from the peer application
2594 settable (SSL*_get/set_max_cert_list()), as proposed by
2595 "Douglas E. Engert" <deengert@anl.gov>.
2598 *) Add support for shared libraries for Unixware-7
2599 (Boyd Lynn Gerber <gerberb@zenez.com>).
2602 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2603 be done prior to destruction. Use this to unload error strings from
2604 ENGINEs that load their own error strings. NB: This adds two new API
2605 functions to "get" and "set" this destroy handler in an ENGINE.
2608 *) Alter all existing ENGINE implementations (except "openssl" and
2609 "openbsd") to dynamically instantiate their own error strings. This
2610 makes them more flexible to be built both as statically-linked ENGINEs
2611 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2612 Also, add stub code to each that makes building them as self-contained
2613 shared-libraries easier (see README.ENGINE).
2616 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2617 implementations into applications that are completely implemented in
2618 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2619 commands that can be used to configure what shared-library to load and
2620 to control aspects of the way it is handled. Also, made an update to
2621 the README.ENGINE file that brings its information up-to-date and
2622 provides some information and instructions on the "dynamic" ENGINE
2623 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2626 *) Make it possible to unload ranges of ERR strings with a new
2627 "ERR_unload_strings" function.
2630 *) Add a copy() function to EVP_MD.
2633 *) Make EVP_MD routines take a context pointer instead of just the
2634 md_data void pointer.
2637 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2638 that the digest can only process a single chunk of data
2639 (typically because it is provided by a piece of
2640 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2641 is only going to provide a single chunk of data, and hence the
2642 framework needn't accumulate the data for oneshot drivers.
2645 *) As with "ERR", make it possible to replace the underlying "ex_data"
2646 functions. This change also alters the storage and management of global
2647 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2648 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2649 index counters. The API functions that use this state have been changed
2650 to take a "class_index" rather than pointers to the class's local STACK
2651 and counter, and there is now an API function to dynamically create new
2652 classes. This centralisation allows us to (a) plug a lot of the
2653 thread-safety problems that existed, and (b) makes it possible to clean
2654 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2655 such data would previously have always leaked in application code and
2656 workarounds were in place to make the memory debugging turn a blind eye
2657 to it. Application code that doesn't use this new function will still
2658 leak as before, but their memory debugging output will announce it now
2659 rather than letting it slide.
2661 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2662 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2663 has a return value to indicate success or failure.
2666 *) Make it possible to replace the underlying "ERR" functions such that the
2667 global state (2 LHASH tables and 2 locks) is only used by the "default"
2668 implementation. This change also adds two functions to "get" and "set"
2669 the implementation prior to it being automatically set the first time
2670 any other ERR function takes place. Ie. an application can call "get",
2671 pass the return value to a module it has just loaded, and that module
2672 can call its own "set" function using that value. This means the
2673 module's "ERR" operations will use (and modify) the error state in the
2674 application and not in its own statically linked copy of OpenSSL code.
2677 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2678 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2679 the operation, and provides a more encapsulated way for external code
2680 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2681 to use these functions rather than manually incrementing the counts.
2683 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2686 *) Add EVP test program.
2689 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2692 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2693 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2694 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2695 These allow a CRL to be built without having to access X509_CRL fields
2696 directly. Modify 'ca' application to use new functions.
2699 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2700 bug workarounds. Rollback attack detection is a security feature.
2701 The problem will only arise on OpenSSL servers when TLSv1 is not
2702 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2703 Software authors not wanting to support TLSv1 will have special reasons
2704 for their choice and can explicitly enable this option.
2705 [Bodo Moeller, Lutz Jaenicke]
2707 *) Rationalise EVP so it can be extended: don't include a union of
2708 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2709 (similar to those existing for EVP_CIPHER_CTX).
2714 EVP_MD_CTX_init(&md); /* new function call */
2715 EVP_DigestInit(&md, EVP_sha1());
2716 EVP_DigestUpdate(&md, in, len);
2717 EVP_DigestFinal(&md, out, NULL);
2718 EVP_MD_CTX_cleanup(&md); /* new function call */
2722 *) Make DES key schedule conform to the usual scheme, as well as
2723 correcting its structure. This means that calls to DES functions
2724 now have to pass a pointer to a des_key_schedule instead of a
2725 plain des_key_schedule (which was actually always a pointer
2728 des_key_schedule ks;
2730 des_set_key_checked(..., &ks);
2731 des_ncbc_encrypt(..., &ks, ...);
2733 (Note that a later change renames 'des_...' into 'DES_...'.)
2736 *) Initial reduction of linker bloat: the use of some functions, such as
2737 PEM causes large amounts of unused functions to be linked in due to
2738 poor organisation. For example pem_all.c contains every PEM function
2739 which has a knock on effect of linking in large amounts of (unused)
2740 ASN1 code. Grouping together similar functions and splitting unrelated
2741 functions prevents this.
2744 *) Cleanup of EVP macros.
2747 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2748 correct _ecb suffix.
2751 *) Add initial OCSP responder support to ocsp application. The
2752 revocation information is handled using the text based index
2753 use by the ca application. The responder can either handle
2754 requests generated internally, supplied in files (for example
2755 via a CGI script) or using an internal minimal server.
2758 *) Add configuration choices to get zlib compression for TLS.
2761 *) Changes to Kerberos SSL for RFC 2712 compliance:
2762 1. Implemented real KerberosWrapper, instead of just using
2763 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2764 2. Implemented optional authenticator field of KerberosWrapper.
2766 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2767 and authenticator structs; see crypto/krb5/.
2769 Generalized Kerberos calls to support multiple Kerberos libraries.
2770 [Vern Staats <staatsvr@asc.hpc.mil>,
2771 Jeffrey Altman <jaltman@columbia.edu>
2772 via Richard Levitte]
2774 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2775 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2776 values for each of the key sizes rather than having just
2777 parameters (and 'speed' generating keys each time).
2780 *) Speed up EVP routines.
2783 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2784 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2785 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2786 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2788 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2789 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2790 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2793 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2795 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2798 *) Added the OS2-EMX target.
2799 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2801 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2802 to support NCONF routines in extension code. New function CONF_set_nconf()
2803 to allow functions which take an NCONF to also handle the old LHASH
2804 structure: this means that the old CONF compatible routines can be
2805 retained (in particular wrt extensions) without having to duplicate the
2806 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2809 *) Enhance the general user interface with mechanisms for inner control
2810 and with possibilities to have yes/no kind of prompts.
2813 *) Change all calls to low level digest routines in the library and
2814 applications to use EVP. Add missing calls to HMAC_cleanup() and
2815 don't assume HMAC_CTX can be copied using memcpy().
2816 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2818 *) Add the possibility to control engines through control names but with
2819 arbitrary arguments instead of just a string.
2820 Change the key loaders to take a UI_METHOD instead of a callback
2821 function pointer. NOTE: this breaks binary compatibility with earlier
2822 versions of OpenSSL [engine].
2823 Adapt the nCipher code for these new conditions and add a card insertion
2827 *) Enhance the general user interface with mechanisms to better support
2828 dialog box interfaces, application-defined prompts, the possibility
2829 to use defaults (for example default passwords from somewhere else)
2830 and interrupts/cancellations.
2833 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2834 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2837 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2838 tidy up some unnecessarily weird code in 'sk_new()').
2839 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2841 *) Change the key loading routines for ENGINEs to use the same kind
2842 callback (pem_password_cb) as all other routines that need this
2846 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2847 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2848 than this minimum value is recommended.
2851 *) New random seeder for OpenVMS, using the system process statistics
2852 that are easily reachable.
2855 *) Windows apparently can't transparently handle global
2856 variables defined in DLLs. Initialisations such as:
2858 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2860 wont compile. This is used by the any applications that need to
2861 declare their own ASN1 modules. This was fixed by adding the option
2862 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2863 needed for static libraries under Win32.
2866 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2867 setting of purpose and trust fields. New X509_STORE trust and
2868 purpose functions and tidy up setting in other SSL functions.
2871 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2872 structure. These are inherited by X509_STORE_CTX when it is
2873 initialised. This allows various defaults to be set in the
2874 X509_STORE structure (such as flags for CRL checking and custom
2875 purpose or trust settings) for functions which only use X509_STORE_CTX
2876 internally such as S/MIME.
2878 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2879 trust settings if they are not set in X509_STORE. This allows X509_STORE
2880 purposes and trust (in S/MIME for example) to override any set by default.
2882 Add command line options for CRL checking to smime, s_client and s_server
2886 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2887 are set then the CRL is looked up in the X509_STORE structure and
2888 its validity and signature checked, then if the certificate is found
2889 in the CRL the verify fails with a revoked error.
2891 Various new CRL related callbacks added to X509_STORE_CTX structure.
2893 Command line options added to 'verify' application to support this.
2895 This needs some additional work, such as being able to handle multiple
2896 CRLs with different times, extension based lookup (rather than just
2897 by subject name) and ultimately more complete V2 CRL extension
2901 *) Add a general user interface API (crypto/ui/). This is designed
2902 to replace things like des_read_password and friends (backward
2903 compatibility functions using this new API are provided).
2904 The purpose is to remove prompting functions from the DES code
2905 section as well as provide for prompting through dialog boxes in
2906 a window system and the like.
2909 *) Add "ex_data" support to ENGINE so implementations can add state at a
2910 per-structure level rather than having to store it globally.
2913 *) Make it possible for ENGINE structures to be copied when retrieved by
2914 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2915 This causes the "original" ENGINE structure to act like a template,
2916 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2917 operational state can be localised to each ENGINE structure, despite the
2918 fact they all share the same "methods". New ENGINE structures returned in
2919 this case have no functional references and the return value is the single
2920 structural reference. This matches the single structural reference returned
2921 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2925 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2926 needs to match any other type at all we need to manually clear the
2930 *) Changes to the "openssl engine" utility to include;
2931 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2932 about an ENGINE's available control commands.
2933 - executing control commands from command line arguments using the
2934 '-pre' and '-post' switches. '-post' is only used if '-t' is
2935 specified and the ENGINE is successfully initialised. The syntax for
2936 the individual commands are colon-separated, for example;
2937 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2940 *) New dynamic control command support for ENGINEs. ENGINEs can now
2941 declare their own commands (numbers), names (strings), descriptions,
2942 and input types for run-time discovery by calling applications. A
2943 subset of these commands are implicitly classed as "executable"
2944 depending on their input type, and only these can be invoked through
2945 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2946 can be based on user input, config files, etc). The distinction is
2947 that "executable" commands cannot return anything other than a boolean
2948 result and can only support numeric or string input, whereas some
2949 discoverable commands may only be for direct use through
2950 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2951 pointers, or other custom uses. The "executable" commands are to
2952 support parameterisations of ENGINE behaviour that can be
2953 unambiguously defined by ENGINEs and used consistently across any
2954 OpenSSL-based application. Commands have been added to all the
2955 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2956 control over shared-library paths without source code alterations.
2959 *) Changed all ENGINE implementations to dynamically allocate their
2960 ENGINEs rather than declaring them statically. Apart from this being
2961 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2962 this also allows the implementations to compile without using the
2963 internal engine_int.h header.
2966 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2967 'const' value. Any code that should be able to modify a RAND_METHOD
2968 should already have non-const pointers to it (ie. they should only
2969 modify their own ones).
2972 *) Made a variety of little tweaks to the ENGINE code.
2973 - "atalla" and "ubsec" string definitions were moved from header files
2974 to C code. "nuron" string definitions were placed in variables
2975 rather than hard-coded - allowing parameterisation of these values
2976 later on via ctrl() commands.
2977 - Removed unused "#if 0"'d code.
2978 - Fixed engine list iteration code so it uses ENGINE_free() to release
2979 structural references.
2980 - Constified the RAND_METHOD element of ENGINE structures.
2981 - Constified various get/set functions as appropriate and added
2982 missing functions (including a catch-all ENGINE_cpy that duplicates
2983 all ENGINE values onto a new ENGINE except reference counts/state).
2984 - Removed NULL parameter checks in get/set functions. Setting a method
2985 or function to NULL is a way of cancelling out a previously set
2986 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2987 and doesn't justify the extra error symbols and code.
2988 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2989 flags from engine_int.h to engine.h.
2990 - Changed prototypes for ENGINE handler functions (init(), finish(),
2991 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2994 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2995 to the algorithm using long division. The binary algorithm can be
2996 used only if the modulus is odd. On 32-bit systems, it is faster
2997 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2998 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2999 up to 450 bits. In 64-bit environments, the binary algorithm
3000 appears to be advantageous for much longer moduli; here we use it
3001 for moduli up to 2048 bits.
3004 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3005 could not support the combine flag in choice fields.
3008 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3009 extensions from a certificate request to the certificate.
3012 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3013 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3014 file: this allows the display of the certificate about to be
3015 signed to be customised, to allow certain fields to be included
3016 or excluded and extension details. The old system didn't display
3017 multicharacter strings properly, omitted fields not in the policy
3018 and couldn't display additional details such as extensions.
3021 *) Function EC_POINTs_mul for multiple scalar multiplication
3022 of an arbitrary number of elliptic curve points
3023 \sum scalars[i]*points[i],
3024 optionally including the generator defined for the EC_GROUP:
3025 scalar*generator + \sum scalars[i]*points[i].
3027 EC_POINT_mul is a simple wrapper function for the typical case
3028 that the point list has just one item (besides the optional
3032 *) First EC_METHODs for curves over GF(p):
3034 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3035 operations and provides various method functions that can also
3036 operate with faster implementations of modular arithmetic.
3038 EC_GFp_mont_method() reuses most functions that are part of
3039 EC_GFp_simple_method, but uses Montgomery arithmetic.
3041 [Bodo Moeller; point addition and point doubling
3042 implementation directly derived from source code provided by
3043 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3045 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3046 crypto/ec/ec_lib.c):
3048 Curves are EC_GROUP objects (with an optional group generator)
3049 based on EC_METHODs that are built into the library.
3051 Points are EC_POINT objects based on EC_GROUP objects.
3053 Most of the framework would be able to handle curves over arbitrary
3054 finite fields, but as there are no obvious types for fields other
3055 than GF(p), some functions are limited to that for now.
3058 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3059 that the file contains a complete HTTP response.
3062 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3063 change the def and num file printf format specifier from "%-40sXXX"
3064 to "%-39s XXX". The latter will always guarantee a space after the
3065 field while the former will cause them to run together if the field
3066 is 40 of more characters long.
3069 *) Constify the cipher and digest 'method' functions and structures
3070 and modify related functions to take constant EVP_MD and EVP_CIPHER
3074 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3075 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3078 *) Modify EVP_Digest*() routines so they now return values. Although the
3079 internal software routines can never fail additional hardware versions
3083 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3085 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3086 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3089 ERR_R_NESTED_ASN1_ERROR
3091 ERR_R_MISSING_ASN1_EOS
3092 were 4 .. 9, conflicting with
3093 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3095 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3096 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3098 Add new error code 'ERR_R_INTERNAL_ERROR'.
3101 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3105 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3106 sets the subject name for a new request or supersedes the
3107 subject name in a given request. Formats that can be parsed are
3108 'CN=Some Name, OU=myOU, C=IT'
3110 'CN=Some Name/OU=myOU/C=IT'.
3112 Add options '-batch' and '-verbose' to 'openssl req'.
3113 [Massimiliano Pala <madwolf@hackmasters.net>]
3115 *) Introduce the possibility to access global variables through
3116 functions on platform were that's the best way to handle exporting
3117 global variables in shared libraries. To enable this functionality,
3118 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3119 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3120 is normally done by Configure or something similar).
3122 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3123 in the source file (foo.c) like this:
3125 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3126 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3128 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3129 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3131 OPENSSL_DECLARE_GLOBAL(int,foo);
3132 #define foo OPENSSL_GLOBAL_REF(foo)
3133 OPENSSL_DECLARE_GLOBAL(double,bar);
3134 #define bar OPENSSL_GLOBAL_REF(bar)
3136 The #defines are very important, and therefore so is including the
3137 header file everywhere where the defined globals are used.
3139 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3140 of ASN.1 items, but that structure is a bit different.
3142 The largest change is in util/mkdef.pl which has been enhanced with
3143 better and easier to understand logic to choose which symbols should
3144 go into the Windows .def files as well as a number of fixes and code
3145 cleanup (among others, algorithm keywords are now sorted
3146 lexicographically to avoid constant rewrites).
3149 *) In BN_div() keep a copy of the sign of 'num' before writing the
3150 result to 'rm' because if rm==num the value will be overwritten
3151 and produce the wrong result if 'num' is negative: this caused
3152 problems with BN_mod() and BN_nnmod().
3155 *) Function OCSP_request_verify(). This checks the signature on an
3156 OCSP request and verifies the signer certificate. The signer
3157 certificate is just checked for a generic purpose and OCSP request
3161 *) Add OCSP_check_validity() function to check the validity of OCSP
3162 responses. OCSP responses are prepared in real time and may only
3163 be a few seconds old. Simply checking that the current time lies
3164 between thisUpdate and nextUpdate max reject otherwise valid responses
3165 caused by either OCSP responder or client clock inaccuracy. Instead
3166 we allow thisUpdate and nextUpdate to fall within a certain period of
3167 the current time. The age of the response can also optionally be
3168 checked. Two new options -validity_period and -status_age added to
3172 *) If signature or public key algorithm is unrecognized print out its
3173 OID rather that just UNKNOWN.
3176 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3177 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3178 ID to be generated from the issuer certificate alone which can then be
3179 passed to OCSP_id_issuer_cmp().
3182 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3183 ASN1 modules to export functions returning ASN1_ITEM pointers
3184 instead of the ASN1_ITEM structures themselves. This adds several
3185 new macros which allow the underlying ASN1 function/structure to
3186 be accessed transparently. As a result code should not use ASN1_ITEM
3187 references directly (such as &X509_it) but instead use the relevant
3188 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3189 use of the new ASN1 code on platforms where exporting structures
3190 is problematical (for example in shared libraries) but exporting
3191 functions returning pointers to structures is not.
3194 *) Add support for overriding the generation of SSL/TLS session IDs.
3195 These callbacks can be registered either in an SSL_CTX or per SSL.
3196 The purpose of this is to allow applications to control, if they wish,
3197 the arbitrary values chosen for use as session IDs, particularly as it
3198 can be useful for session caching in multiple-server environments. A
3199 command-line switch for testing this (and any client code that wishes
3200 to use such a feature) has been added to "s_server".
3201 [Geoff Thorpe, Lutz Jaenicke]
3203 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3204 of the form '#if defined(...) || defined(...) || ...' and
3205 '#if !defined(...) && !defined(...) && ...'. This also avoids
3206 the growing number of special cases it was previously handling.
3209 *) Make all configuration macros available for application by making
3210 sure they are available in opensslconf.h, by giving them names starting
3211 with "OPENSSL_" to avoid conflicts with other packages and by making
3212 sure e_os2.h will cover all platform-specific cases together with
3214 Additionally, it is now possible to define configuration/platform-
3215 specific names (called "system identities"). In the C code, these
3216 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3217 macro with the name beginning with "OPENSSL_SYS_", which is determined
3218 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3222 *) New option -set_serial to 'req' and 'x509' this allows the serial
3223 number to use to be specified on the command line. Previously self
3224 signed certificates were hard coded with serial number 0 and the
3225 CA options of 'x509' had to use a serial number in a file which was
3229 *) New options to 'ca' utility to support V2 CRL entry extensions.
3230 Currently CRL reason, invalidity date and hold instruction are
3231 supported. Add new CRL extensions to V3 code and some new objects.
3234 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3235 disable standard block padding (aka PKCS#5 padding) in the EVP
3236 API, which was previously mandatory. This means that the data is
3237 not padded in any way and so the total length much be a multiple
3238 of the block size, otherwise an error occurs.
3241 *) Initial (incomplete) OCSP SSL support.
3244 *) New function OCSP_parse_url(). This splits up a URL into its host,
3245 port and path components: primarily to parse OCSP URLs. New -url
3246 option to ocsp utility.
3249 *) New nonce behavior. The return value of OCSP_check_nonce() now
3250 reflects the various checks performed. Applications can decide
3251 whether to tolerate certain situations such as an absent nonce
3252 in a response when one was present in a request: the ocsp application
3253 just prints out a warning. New function OCSP_add1_basic_nonce()
3254 this is to allow responders to include a nonce in a response even if
3255 the request is nonce-less.
3258 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3259 skipped when using openssl x509 multiple times on a single input file,
3260 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3263 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3264 set string type: to handle setting ASN1_TIME structures. Fix ca
3265 utility to correctly initialize revocation date of CRLs.
3268 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3269 the clients preferred ciphersuites and rather use its own preferences.
3270 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3271 Internet Explorer by ensuring unchanged hash method during stepup.
3272 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3275 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3276 to aes and add a new 'exist' option to print out symbols that don't
3280 *) Additional options to ocsp utility to allow flags to be set and
3281 additional certificates supplied.
3284 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3285 OCSP client a number of certificate to only verify the response
3289 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3290 handle the new API. Currently only ECB, CBC modes supported. Add new
3293 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3294 Encryption Standard (AES) Ciphersuites for Transport Layer
3295 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3296 not enabled by default and were not part of the "ALL" ciphersuite
3297 alias because they were not yet official; they could be
3298 explicitly requested by specifying the "AESdraft" ciphersuite
3299 group alias. In the final release of OpenSSL 0.9.7, the group
3300 alias is called "AES" and is part of "ALL".)
3301 [Ben Laurie, Steve Henson, Bodo Moeller]
3303 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3304 request to response.
3307 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3308 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3309 extract information from a certificate request. OCSP_response_create()
3310 creates a response and optionally adds a basic response structure.
3311 OCSP_basic_add1_status() adds a complete single response to a basic
3312 response and returns the OCSP_SINGLERESP structure just added (to allow
3313 extensions to be included for example). OCSP_basic_add1_cert() adds a
3314 certificate to a basic response and OCSP_basic_sign() signs a basic
3315 response with various flags. New helper functions ASN1_TIME_check()
3316 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3317 (converts ASN1_TIME to GeneralizedTime).
3320 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3321 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3322 structure from a certificate. X509_pubkey_digest() digests the public_key
3323 contents: this is used in various key identifiers.
3326 *) Make sk_sort() tolerate a NULL argument.
3327 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3329 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3330 passed by the function are trusted implicitly. If any of them signed the
3331 response then it is assumed to be valid and is not verified.
3334 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3335 to data. This was previously part of the PKCS7 ASN1 code. This
3336 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3337 [Steve Henson, reported by Kenneth R. Robinette
3338 <support@securenetterm.com>]
3340 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3341 routines: without these tracing memory leaks is very painful.
3342 Fix leaks in PKCS12 and PKCS7 routines.
3345 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3346 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3347 effectively meant GeneralizedTime would never be used. Now it
3348 is initialised to -1 but X509_time_adj() now has to check the value
3349 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3350 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3351 [Steve Henson, reported by Kenneth R. Robinette
3352 <support@securenetterm.com>]
3354 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3355 result in a zero length in the ASN1_INTEGER structure which was
3356 not consistent with the structure when d2i_ASN1_INTEGER() was used
3357 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3358 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3359 where it did not print out a minus for negative ASN1_INTEGER.
3362 *) Add summary printout to ocsp utility. The various functions which
3363 convert status values to strings have been renamed to:
3364 OCSP_response_status_str(), OCSP_cert_status_str() and
3365 OCSP_crl_reason_str() and are no longer static. New options
3366 to verify nonce values and to disable verification. OCSP response
3367 printout format cleaned up.
3370 *) Add additional OCSP certificate checks. These are those specified
3371 in RFC2560. This consists of two separate checks: the CA of the
3372 certificate being checked must either be the OCSP signer certificate
3373 or the issuer of the OCSP signer certificate. In the latter case the
3374 OCSP signer certificate must contain the OCSP signing extended key
3375 usage. This check is performed by attempting to match the OCSP
3376 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3377 in the OCSP_CERTID structures of the response.
3380 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3381 and related routines. This uses the standard OpenSSL certificate
3382 verify routines to perform initial checks (just CA validity) and
3383 to obtain the certificate chain. Then additional checks will be
3384 performed on the chain. Currently the root CA is checked to see
3385 if it is explicitly trusted for OCSP signing. This is used to set
3386 a root CA as a global signing root: that is any certificate that
3387 chains to that CA is an acceptable OCSP signing certificate.
3390 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3391 extensions from a separate configuration file.
3392 As when reading extensions from the main configuration file,
3393 the '-extensions ...' option may be used for specifying the
3395 [Massimiliano Pala <madwolf@comune.modena.it>]
3397 *) New OCSP utility. Allows OCSP requests to be generated or
3398 read. The request can be sent to a responder and the output
3399 parsed, outputed or printed in text form. Not complete yet:
3400 still needs to check the OCSP response validity.
3403 *) New subcommands for 'openssl ca':
3404 'openssl ca -status <serial>' prints the status of the cert with
3405 the given serial number (according to the index file).
3406 'openssl ca -updatedb' updates the expiry status of certificates
3408 [Massimiliano Pala <madwolf@comune.modena.it>]
3410 *) New '-newreq-nodes' command option to CA.pl. This is like
3411 '-newreq', but calls 'openssl req' with the '-nodes' option
3412 so that the resulting key is not encrypted.
3413 [Damien Miller <djm@mindrot.org>]
3415 *) New configuration for the GNU Hurd.
3416 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3418 *) Initial code to implement OCSP basic response verify. This
3419 is currently incomplete. Currently just finds the signer's
3420 certificate and verifies the signature on the response.
3423 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3424 value of OPENSSLDIR. This is available via the new '-d' option
3425 to 'openssl version', and is also included in 'openssl version -a'.
3428 *) Allowing defining memory allocation callbacks that will be given
3429 file name and line number information in additional arguments
3430 (a const char* and an int). The basic functionality remains, as
3431 well as the original possibility to just replace malloc(),
3432 realloc() and free() by functions that do not know about these
3433 additional arguments. To register and find out the current
3434 settings for extended allocation functions, the following
3435 functions are provided:
3437 CRYPTO_set_mem_ex_functions
3438 CRYPTO_set_locked_mem_ex_functions
3439 CRYPTO_get_mem_ex_functions
3440 CRYPTO_get_locked_mem_ex_functions
3442 These work the same way as CRYPTO_set_mem_functions and friends.
3443 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3444 extended allocation function is enabled.
3445 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3446 a conventional allocation function is enabled.
3447 [Richard Levitte, Bodo Moeller]
3449 *) Finish off removing the remaining LHASH function pointer casts.
3450 There should no longer be any prototype-casting required when using
3451 the LHASH abstraction, and any casts that remain are "bugs". See
3452 the callback types and macros at the head of lhash.h for details
3453 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3456 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3457 If /dev/[u]random devices are not available or do not return enough
3458 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3460 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3461 /etc/entropy will be queried once each in this sequence, quering stops
3462 when enough entropy was collected without querying more sockets.
3465 *) Change the Unix RAND_poll() variant to be able to poll several
3466 random devices, as specified by DEVRANDOM, until a sufficient amount
3467 of data has been collected. We spend at most 10 ms on each file
3468 (select timeout) and read in non-blocking mode. DEVRANDOM now
3469 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3470 (previously it was just the string "/dev/urandom"), so on typical
3471 platforms the 10 ms delay will never occur.
3472 Also separate out the Unix variant to its own file, rand_unix.c.
3473 For VMS, there's a currently-empty rand_vms.c.
3476 *) Move OCSP client related routines to ocsp_cl.c. These
3477 provide utility functions which an application needing
3478 to issue a request to an OCSP responder and analyse the
3479 response will typically need: as opposed to those which an
3480 OCSP responder itself would need which will be added later.
3482 OCSP_request_sign() signs an OCSP request with an API similar
3483 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3484 response. OCSP_response_get1_basic() extracts basic response
3485 from response. OCSP_resp_find_status(): finds and extracts status
3486 information from an OCSP_CERTID structure (which will be created
3487 when the request structure is built). These are built from lower
3488 level functions which work on OCSP_SINGLERESP structures but
3489 wont normally be used unless the application wishes to examine
3490 extensions in the OCSP response for example.
3492 Replace nonce routines with a pair of functions.
3493 OCSP_request_add1_nonce() adds a nonce value and optionally
3494 generates a random value. OCSP_check_nonce() checks the
3495 validity of the nonce in an OCSP response.
3498 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3499 This doesn't copy the supplied OCSP_CERTID and avoids the
3500 need to free up the newly created id. Change return type
3501 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3502 This can then be used to add extensions to the request.
3503 Deleted OCSP_request_new(), since most of its functionality
3504 is now in OCSP_REQUEST_new() (and the case insensitive name
3505 clash) apart from the ability to set the request name which
3506 will be added elsewhere.
3509 *) Update OCSP API. Remove obsolete extensions argument from
3510 various functions. Extensions are now handled using the new
3511 OCSP extension code. New simple OCSP HTTP function which
3512 can be used to send requests and parse the response.
3515 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3516 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3517 uses the special reorder version of SET OF to sort the attributes
3518 and reorder them to match the encoded order. This resolves a long
3519 standing problem: a verify on a PKCS7 structure just after signing
3520 it used to fail because the attribute order did not match the
3521 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3522 it uses the received order. This is necessary to tolerate some broken
3523 software that does not order SET OF. This is handled by encoding
3524 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3525 to produce the required SET OF.
3528 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3529 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3530 files to get correct declarations of the ASN.1 item variables.
3533 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3534 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3535 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3536 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3537 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3538 ASN1_ITEM and no wrapper functions.
3541 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3542 replace the old function pointer based I/O routines. Change most of
3543 the *_d2i_bio() and *_d2i_fp() functions to use these.
3546 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3547 lines, recognice more "algorithms" that can be deselected, and make
3548 it complain about algorithm deselection that isn't recognised.
3551 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3552 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3553 to use new functions. Add NO_ASN1_OLD which can be set to remove
3554 some old style ASN1 functions: this can be used to determine if old
3555 code will still work when these eventually go away.
3558 *) New extension functions for OCSP structures, these follow the
3559 same conventions as certificates and CRLs.
3562 *) New function X509V3_add1_i2d(). This automatically encodes and
3563 adds an extension. Its behaviour can be customised with various
3564 flags to append, replace or delete. Various wrappers added for
3565 certifcates and CRLs.
3568 *) Fix to avoid calling the underlying ASN1 print routine when
3569 an extension cannot be parsed. Correct a typo in the
3570 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3573 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3574 entries for variables.
3577 *) Add functionality to apps/openssl.c for detecting locking
3578 problems: As the program is single-threaded, all we have
3579 to do is register a locking callback using an array for
3580 storing which locks are currently held by the program.
3583 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3584 SSL_get_ex_data_X509_STORE_idx(), which is used in
3585 ssl_verify_cert_chain() and thus can be called at any time
3586 during TLS/SSL handshakes so that thread-safety is essential.
3587 Unfortunately, the ex_data design is not at all suited
3588 for multi-threaded use, so it probably should be abolished.
3591 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3592 [Broadcom, tweaked and integrated by Geoff Thorpe]
3594 *) Move common extension printing code to new function
3595 X509V3_print_extensions(). Reorganise OCSP print routines and
3596 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3599 *) New function X509_signature_print() to remove duplication in some
3603 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3604 set (this was treated exactly the same as SET OF previously). This
3605 is used to reorder the STACK representing the structure to match the
3606 encoding. This will be used to get round a problem where a PKCS7
3607 structure which was signed could not be verified because the STACK
3608 order did not reflect the encoded order.
3611 *) Reimplement the OCSP ASN1 module using the new code.
3614 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3615 for its ASN1 operations. The old style function pointers still exist
3616 for now but they will eventually go away.
3619 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3620 completely replaces the old ASN1 functionality with a table driven
3621 encoder and decoder which interprets an ASN1_ITEM structure describing
3622 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3623 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3624 has also been converted to the new form.
3627 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3628 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3629 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3630 for negative moduli.
3633 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3634 of not touching the result's sign bit.
3637 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3641 *) Changed the LHASH code to use prototypes for callbacks, and created
3642 macros to declare and implement thin (optionally static) functions
3643 that provide type-safety and avoid function pointer casting for the
3644 type-specific callbacks.
3647 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3649 [Veers Staats <staatsvr@asc.hpc.mil>,
3650 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3652 *) Reformat the FAQ so the different questions and answers can be divided
3653 in sections depending on the subject.
3656 *) Have the zlib compression code load ZLIB.DLL dynamically under
3660 *) New function BN_mod_sqrt for computing square roots modulo a prime
3661 (using the probabilistic Tonelli-Shanks algorithm unless
3662 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3663 be handled deterministically).
3664 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3666 *) Make BN_mod_inverse faster by explicitly handling small quotients
3667 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3668 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3671 *) New function BN_kronecker.
3674 *) Fix BN_gcd so that it works on negative inputs; the result is
3675 positive unless both parameters are zero.
3676 Previously something reasonably close to an infinite loop was
3677 possible because numbers could be growing instead of shrinking
3678 in the implementation of Euclid's algorithm.
3681 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3682 sign of the number in question.
3684 Fix BN_is_word(a,w) to work correctly for w == 0.
3686 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3687 because its test if the absolute value of 'a' equals 'w'.
3688 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3689 it exists mostly for use in the implementations of BN_is_zero(),
3690 BN_is_one(), and BN_is_word().
3693 *) New function BN_swap.
3696 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3697 the exponentiation functions are more likely to produce reasonable
3698 results on negative inputs.
3701 *) Change BN_mod_mul so that the result is always non-negative.
3702 Previously, it could be negative if one of the factors was negative;
3703 I don't think anyone really wanted that behaviour.
3706 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3707 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3708 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3709 and add new functions:
3718 BN_mod_lshift1_quick
3722 These functions always generate non-negative results.
3724 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3725 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3727 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3728 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3729 be reduced modulo m.
3730 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3733 The following entry accidentily appeared in the CHANGES file
3734 distributed with OpenSSL 0.9.7. The modifications described in
3735 it do *not* apply to OpenSSL 0.9.7.
3737 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3738 was actually never needed) and in BN_mul(). The removal in BN_mul()
3739 required a small change in bn_mul_part_recursive() and the addition
3740 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3741 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3742 bn_sub_words() and bn_add_words() except they take arrays with
3747 *) In 'openssl passwd', verify passwords read from the terminal
3748 unless the '-salt' option is used (which usually means that
3749 verification would just waste user's time since the resulting
3750 hash is going to be compared with some given password hash)
3751 or the new '-noverify' option is used.
3753 This is an incompatible change, but it does not affect
3754 non-interactive use of 'openssl passwd' (passwords on the command
3755 line, '-stdin' option, '-in ...' option) and thus should not
3759 *) Remove all references to RSAref, since there's no more need for it.
3762 *) Make DSO load along a path given through an environment variable
3763 (SHLIB_PATH) with shl_load().
3766 *) Constify the ENGINE code as a result of BIGNUM constification.
3767 Also constify the RSA code and most things related to it. In a
3768 few places, most notable in the depth of the ASN.1 code, ugly
3769 casts back to non-const were required (to be solved at a later
3773 *) Make it so the openssl application has all engines loaded by default.
3776 *) Constify the BIGNUM routines a little more.
3779 *) Add the following functions:
3781 ENGINE_load_cswift()
3783 ENGINE_load_atalla()
3785 ENGINE_load_builtin_engines()
3787 That way, an application can itself choose if external engines that
3788 are built-in in OpenSSL shall ever be used or not. The benefit is
3789 that applications won't have to be linked with libdl or other dso
3790 libraries unless it's really needed.
3792 Changed 'openssl engine' to load all engines on demand.
3793 Changed the engine header files to avoid the duplication of some
3794 declarations (they differed!).
3797 *) 'openssl engine' can now list capabilities.
3800 *) Better error reporting in 'openssl engine'.
3803 *) Never call load_dh_param(NULL) in s_server.
3806 *) Add engine application. It can currently list engines by name and
3807 identity, and test if they are actually available.
3810 *) Improve RPM specification file by forcing symbolic linking and making
3811 sure the installed documentation is also owned by root.root.
3812 [Damien Miller <djm@mindrot.org>]
3814 *) Give the OpenSSL applications more possibilities to make use of
3815 keys (public as well as private) handled by engines.
3818 *) Add OCSP code that comes from CertCo.
3821 *) Add VMS support for the Rijndael code.
3824 *) Added untested support for Nuron crypto accelerator.
3827 *) Add support for external cryptographic devices. This code was
3828 previously distributed separately as the "engine" branch.
3829 [Geoff Thorpe, Richard Levitte]
3831 *) Rework the filename-translation in the DSO code. It is now possible to
3832 have far greater control over how a "name" is turned into a filename
3833 depending on the operating environment and any oddities about the
3834 different shared library filenames on each system.
3837 *) Support threads on FreeBSD-elf in Configure.
3840 *) Fix for SHA1 assembly problem with MASM: it produces
3841 warnings about corrupt line number information when assembling
3842 with debugging information. This is caused by the overlapping
3844 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3847 NCONF_get_number() has no error checking at all. As a replacement,
3848 NCONF_get_number_e() is defined (_e for "error checking") and is
3849 promoted strongly. The old NCONF_get_number is kept around for
3850 binary backward compatibility.
3851 Make it possible for methods to load from something other than a BIO,
3852 by providing a function pointer that is given a name instead of a BIO.
3853 For example, this could be used to load configuration data from an
3857 *) Fix for non blocking accept BIOs. Added new I/O special reason
3858 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3859 with non blocking I/O was not possible because no retry code was
3860 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3864 *) Added the beginnings of Rijndael support.
3867 *) Fix for bug in DirectoryString mask setting. Add support for
3868 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3869 to allow certificate printing to more controllable, additional
3870 'certopt' option to 'x509' to allow new printing options to be
3874 *) Clean old EAY MD5 hack from e_os.h.
3877 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3879 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3880 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3881 [Joe Orton, Steve Henson]
3883 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3885 *) Fix additional bug revealed by the NISCC test suite:
3887 Stop bug triggering large recursion when presented with
3888 certain ASN.1 tags (CVE-2003-0851)
3891 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3893 *) Fix various bugs revealed by running the NISCC test suite:
3895 Stop out of bounds reads in the ASN1 code when presented with
3896 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3898 If verify callback ignores invalid public key errors don't try to check
3899 certificate signature with the NULL public key.
3903 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3904 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3908 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3909 extra data after the compression methods not only for TLS 1.0
3910 but also for SSL 3.0 (as required by the specification).
3911 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3913 *) Change X509_certificate_type() to mark the key as exported/exportable
3914 when it's 512 *bits* long, not 512 bytes.
3917 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3919 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3920 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3921 a protocol version number mismatch like a decryption error
3922 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3925 *) Turn on RSA blinding by default in the default implementation
3926 to avoid a timing attack. Applications that don't want it can call
3927 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3928 They would be ill-advised to do so in most cases.
3929 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3931 *) Change RSA blinding code so that it works when the PRNG is not
3932 seeded (in this case, the secret RSA exponent is abused as
3933 an unpredictable seed -- if it is not unpredictable, there
3934 is no point in blinding anyway). Make RSA blinding thread-safe
3935 by remembering the creator's thread ID in rsa->blinding and
3936 having all other threads use local one-time blinding factors
3937 (this requires more computation than sharing rsa->blinding, but
3938 avoids excessive locking; and if an RSA object is not shared
3939 between threads, blinding will still be very fast).
3942 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3944 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3945 via timing by performing a MAC computation even if incorrrect
3946 block cipher padding has been found. This is a countermeasure
3947 against active attacks where the attacker has to distinguish
3948 between bad padding and a MAC verification error. (CVE-2003-0078)
3950 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3951 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3952 Martin Vuagnoux (EPFL, Ilion)]
3954 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3956 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3957 memory from it's contents. This is done with a counter that will
3958 place alternating values in each byte. This can be used to solve
3959 two issues: 1) the removal of calls to memset() by highly optimizing
3960 compilers, and 2) cleansing with other values than 0, since those can
3961 be read through on certain media, for example a swap space on disk.
3964 *) Bugfix: client side session caching did not work with external caching,
3965 because the session->cipher setting was not restored when reloading
3966 from the external cache. This problem was masked, when
3967 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3968 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3971 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3972 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3973 [Zeev Lieber <zeev-l@yahoo.com>]
3975 *) Undo an undocumented change introduced in 0.9.6e which caused
3976 repeated calls to OpenSSL_add_all_ciphers() and
3977 OpenSSL_add_all_digests() to be ignored, even after calling
3981 *) Change the default configuration reader to deal with last line not
3982 being properly terminated.
3985 *) Change X509_NAME_cmp() so it applies the special rules on handling
3986 DN values that are of type PrintableString, as well as RDNs of type
3987 emailAddress where the value has the type ia5String.
3988 [stefank@valicert.com via Richard Levitte]
3990 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3991 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3992 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3993 the bitwise-OR of the two for use by the majority of applications
3994 wanting this behaviour, and update the docs. The documented
3995 behaviour and actual behaviour were inconsistent and had been
3996 changing anyway, so this is more a bug-fix than a behavioural
3998 [Geoff Thorpe, diagnosed by Nadav Har'El]
4000 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4001 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4004 *) Fix initialization code race conditions in
4005 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4006 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4007 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4008 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4009 ssl2_get_cipher_by_char(),
4010 ssl3_get_cipher_by_char().
4011 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4013 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4014 the cached sessions are flushed, as the remove_cb() might use ex_data
4015 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4016 (see [openssl.org #212]).
4017 [Geoff Thorpe, Lutz Jaenicke]
4019 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4020 length, instead of the encoding length to d2i_ASN1_OBJECT.
4023 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4025 *) [In 0.9.6g-engine release:]
4026 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4027 [Lynn Gazis <lgazis@rainbow.com>]
4029 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4031 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4032 and get fix the header length calculation.
4033 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4034 Alon Kantor <alonk@checkpoint.com> (and others),
4037 *) Use proper error handling instead of 'assertions' in buffer
4038 overflow checks added in 0.9.6e. This prevents DoS (the
4039 assertions could call abort()).
4040 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4042 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4044 *) Add various sanity checks to asn1_get_length() to reject
4045 the ASN1 length bytes if they exceed sizeof(long), will appear
4046 negative or the content length exceeds the length of the
4048 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4050 *) Fix cipher selection routines: ciphers without encryption had no flags
4051 for the cipher strength set and where therefore not handled correctly
4052 by the selection routines (PR #130).
4055 *) Fix EVP_dsa_sha macro.
4059 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4060 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4061 that was added in OpenSSL 0.9.6d.
4063 As the countermeasure turned out to be incompatible with some
4064 broken SSL implementations, the new option is part of SSL_OP_ALL.
4065 SSL_OP_ALL is usually employed when compatibility with weird SSL
4066 implementations is desired (e.g. '-bugs' option to 's_client' and
4067 's_server'), so the new option is automatically set in many
4071 *) Changes in security patch:
4073 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4074 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4075 Air Force Materiel Command, USAF, under agreement number
4078 *) Add various sanity checks to asn1_get_length() to reject
4079 the ASN1 length bytes if they exceed sizeof(long), will appear
4080 negative or the content length exceeds the length of the
4081 supplied buffer. (CVE-2002-0659)
4082 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4084 *) Assertions for various potential buffer overflows, not known to
4086 [Ben Laurie (CHATS)]
4088 *) Various temporary buffers to hold ASCII versions of integers were
4089 too small for 64 bit platforms. (CVE-2002-0655)
4090 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4092 *) Remote buffer overflow in SSL3 protocol - an attacker could
4093 supply an oversized session ID to a client. (CVE-2002-0656)
4094 [Ben Laurie (CHATS)]
4096 *) Remote buffer overflow in SSL2 protocol - an attacker could
4097 supply an oversized client master key. (CVE-2002-0656)
4098 [Ben Laurie (CHATS)]
4100 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4102 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4103 encoded as NULL) with id-dsa-with-sha1.
4104 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4106 *) Check various X509_...() return values in apps/req.c.
4107 [Nils Larsch <nla@trustcenter.de>]
4109 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4110 an end-of-file condition would erronously be flagged, when the CRLF
4111 was just at the end of a processed block. The bug was discovered when
4112 processing data through a buffering memory BIO handing the data to a
4113 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4114 <ptsekov@syntrex.com> and Nedelcho Stanev.
4117 *) Implement a countermeasure against a vulnerability recently found
4118 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4119 before application data chunks to avoid the use of known IVs
4120 with data potentially chosen by the attacker.
4123 *) Fix length checks in ssl3_get_client_hello().
4126 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4127 to prevent ssl3_read_internal() from incorrectly assuming that
4128 ssl3_read_bytes() found application data while handshake
4129 processing was enabled when in fact s->s3->in_read_app_data was
4130 merely automatically cleared during the initial handshake.
4131 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4133 *) Fix object definitions for Private and Enterprise: they were not
4134 recognized in their shortname (=lowercase) representation. Extend
4135 obj_dat.pl to issue an error when using undefined keywords instead
4136 of silently ignoring the problem (Svenning Sorensen
4137 <sss@sss.dnsalias.net>).
4140 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4141 generators, i.e. generators other than 2 and 5. (Previously, the
4142 code did not properly initialise the 'add' and 'rem' values to
4143 BN_generate_prime().)
4145 In the new general case, we do not insist that 'generator' is
4146 actually a primitive root: This requirement is rather pointless;
4147 a generator of the order-q subgroup is just as good, if not
4151 *) Map new X509 verification errors to alerts. Discovered and submitted by
4152 Tom Wu <tom@arcot.com>.
4155 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4156 returning non-zero before the data has been completely received
4157 when using non-blocking I/O.
4158 [Bodo Moeller; problem pointed out by John Hughes]
4160 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4161 [Ben Laurie, Lutz Jaenicke]
4163 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4164 Yoram Zahavi <YoramZ@gilian.com>).
4167 *) Add information about CygWin 1.3 and on, and preserve proper
4168 configuration for the versions before that.
4169 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4171 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4172 check whether we deal with a copy of a session and do not delete from
4173 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4174 <izhar@checkpoint.com>.
4177 *) Do not store session data into the internal session cache, if it
4178 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4179 flag is set). Proposed by Aslam <aslam@funk.com>.
4182 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4186 *) [In 0.9.6d-engine release:]
4187 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4188 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4190 *) Add the configuration target linux-s390x.
4191 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4193 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4194 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4195 variable as an indication that a ClientHello message has been
4196 received. As the flag value will be lost between multiple
4197 invocations of ssl3_accept when using non-blocking I/O, the
4198 function may not be aware that a handshake has actually taken
4199 place, thus preventing a new session from being added to the
4202 To avoid this problem, we now set s->new_session to 2 instead of
4203 using a local variable.
4204 [Lutz Jaenicke, Bodo Moeller]
4206 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4207 if the SSL_R_LENGTH_MISMATCH error is detected.
4208 [Geoff Thorpe, Bodo Moeller]
4210 *) New 'shared_ldflag' column in Configure platform table.
4213 *) Fix EVP_CIPHER_mode macro.
4214 ["Dan S. Camper" <dan@bti.net>]
4216 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4217 type, we must throw them away by setting rr->length to 0.
4218 [D P Chang <dpc@qualys.com>]
4220 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4222 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4223 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4224 worked incorrectly for those cases where range = 10..._2 and
4225 3*range is two bits longer than range.)
4228 *) Only add signing time to PKCS7 structures if it is not already
4232 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4233 OBJ_ld_ce should be OBJ_id_ce.
4234 Also some ip-pda OIDs in crypto/objects/objects.txt were
4235 incorrect (cf. RFC 3039).
4236 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4238 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4239 returns early because it has nothing to do.
4240 [Andy Schneider <andy.schneider@bjss.co.uk>]
4242 *) [In 0.9.6c-engine release:]
4243 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4244 [Andy Schneider <andy.schneider@bjss.co.uk>]
4246 *) [In 0.9.6c-engine release:]
4247 Add support for Cryptographic Appliance's keyserver technology.
4248 (Use engine 'keyclient')
4249 [Cryptographic Appliances and Geoff Thorpe]
4251 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4252 is called via tools/c89.sh because arguments have to be
4253 rearranged (all '-L' options must appear before the first object
4255 [Richard Shapiro <rshapiro@abinitio.com>]
4257 *) [In 0.9.6c-engine release:]
4258 Add support for Broadcom crypto accelerator cards, backported
4260 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4262 *) [In 0.9.6c-engine release:]
4263 Add support for SureWare crypto accelerator cards from
4264 Baltimore Technologies. (Use engine 'sureware')
4265 [Baltimore Technologies and Mark Cox]
4267 *) [In 0.9.6c-engine release:]
4268 Add support for crypto accelerator cards from Accelerated
4269 Encryption Processing, www.aep.ie. (Use engine 'aep')
4270 [AEP Inc. and Mark Cox]
4272 *) Add a configuration entry for gcc on UnixWare.
4273 [Gary Benson <gbenson@redhat.com>]
4275 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4276 messages are stored in a single piece (fixed-length part and
4277 variable-length part combined) and fix various bugs found on the way.
4280 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4281 instead. BIO_gethostbyname() does not know what timeouts are
4282 appropriate, so entries would stay in cache even when they have
4284 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4286 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4287 faced with a pathologically small ClientHello fragment that does
4288 not contain client_version: Instead of aborting with an error,
4289 simply choose the highest available protocol version (i.e.,
4290 TLS 1.0 unless it is disabled). In practice, ClientHello
4291 messages are never sent like this, but this change gives us
4292 strictly correct behaviour at least for TLS.
4295 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4296 never resets s->method to s->ctx->method when called from within
4297 one of the SSL handshake functions.
4298 [Bodo Moeller; problem pointed out by Niko Baric]
4300 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4301 (sent using the client's version number) if client_version is
4302 smaller than the protocol version in use. Also change
4303 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4304 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4305 the client will at least see that alert.
4308 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4312 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4313 client receives HelloRequest while in a handshake.
4314 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4316 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4317 should end in 'break', not 'goto end' which circuments various
4318 cleanups done in state SSL_ST_OK. But session related stuff
4319 must be disabled for SSL_ST_OK in the case that we just sent a
4322 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4323 before just sending a HelloRequest.
4324 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4326 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4327 reveal whether illegal block cipher padding was found or a MAC
4328 verification error occured. (Neither SSLerr() codes nor alerts
4329 are directly visible to potential attackers, but the information
4330 may leak via logfiles.)
4332 Similar changes are not required for the SSL 2.0 implementation
4333 because the number of padding bytes is sent in clear for SSL 2.0,
4334 and the extra bytes are just ignored. However ssl/s2_pkt.c
4335 failed to verify that the purported number of padding bytes is in
4339 *) Add OpenUNIX-8 support including shared libraries
4340 (Boyd Lynn Gerber <gerberb@zenez.com>).
4343 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4344 'wristwatch attack' using huge encoding parameters (cf.
4345 James H. Manger's CRYPTO 2001 paper). Note that the
4346 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4347 encoding parameters and hence was not vulnerable.
4350 *) BN_sqr() bug fix.
4351 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4353 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4354 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4355 followed by modular reduction.
4356 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4358 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4359 equivalent based on BN_pseudo_rand() instead of BN_rand().
4362 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4363 This function was broken, as the check for a new client hello message
4364 to handle SGC did not allow these large messages.
4365 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4368 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4371 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4372 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4375 *) Rework the configuration and shared library support for Tru64 Unix.
4376 The configuration part makes use of modern compiler features and
4377 still retains old compiler behavior for those that run older versions
4378 of the OS. The shared library support part includes a variant that
4379 uses the RPATH feature, and is available through the special
4380 configuration target "alpha-cc-rpath", which will never be selected
4382 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4384 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4385 with the same message size as in ssl3_get_certificate_request().
4386 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4387 messages might inadvertently be reject as too long.
4388 [Petr Lampa <lampa@fee.vutbr.cz>]
4390 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4393 *) Modified SSL library such that the verify_callback that has been set
4394 specificly for an SSL object with SSL_set_verify() is actually being
4395 used. Before the change, a verify_callback set with this function was
4396 ignored and the verify_callback() set in the SSL_CTX at the time of
4397 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4398 to allow the necessary settings.
4401 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4402 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4403 done automatically (in contradiction to the requirements of the C
4404 standard). This made problems when used from OpenSSH.
4407 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4408 dh->length and always used
4410 BN_rand_range(priv_key, dh->p).
4412 BN_rand_range() is not necessary for Diffie-Hellman, and this
4413 specific range makes Diffie-Hellman unnecessarily inefficient if
4414 dh->length (recommended exponent length) is much smaller than the
4415 length of dh->p. We could use BN_rand_range() if the order of
4416 the subgroup was stored in the DH structure, but we only have
4421 BN_rand(priv_key, l, ...)
4423 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4429 RSA_eay_public_encrypt
4430 RSA_eay_private_decrypt
4431 RSA_eay_private_encrypt (signing)
4432 RSA_eay_public_decrypt (signature verification)
4434 (default implementations for RSA_public_encrypt,
4435 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4436 always reject numbers >= n.
4439 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4440 to synchronize access to 'locking_thread'. This is necessary on
4441 systems where access to 'locking_thread' (an 'unsigned long'
4442 variable) is not atomic.
4445 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4446 *before* setting the 'crypto_lock_rand' flag. The previous code had
4447 a race condition if 0 is a valid thread ID.
4448 [Travis Vitek <vitek@roguewave.com>]
4450 *) Add support for shared libraries under Irix.
4451 [Albert Chin-A-Young <china@thewrittenword.com>]
4453 *) Add configuration option to build on Linux on both big-endian and
4455 [Ralf Baechle <ralf@uni-koblenz.de>]
4457 *) Add the possibility to create shared libraries on HP-UX.
4460 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4462 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4463 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4464 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4465 PRNG state recovery was possible based on the output of
4466 one PRNG request appropriately sized to gain knowledge on
4467 'md' followed by enough consecutive 1-byte PRNG requests
4468 to traverse all of 'state'.
4470 1. When updating 'md_local' (the current thread's copy of 'md')
4471 during PRNG output generation, hash all of the previous
4472 'md_local' value, not just the half used for PRNG output.
4474 2. Make the number of bytes from 'state' included into the hash
4475 independent from the number of PRNG bytes requested.
4477 The first measure alone would be sufficient to avoid
4478 Markku-Juhani's attack. (Actually it had never occurred
4479 to me that the half of 'md_local' used for chaining was the
4480 half from which PRNG output bytes were taken -- I had always
4481 assumed that the secret half would be used.) The second
4482 measure makes sure that additional data from 'state' is never
4483 mixed into 'md_local' in small portions; this heuristically
4484 further strengthens the PRNG.
4487 *) Fix crypto/bn/asm/mips3.s.
4490 *) When only the key is given to "enc", the IV is undefined. Print out
4491 an error message in this case.
4494 *) Handle special case when X509_NAME is empty in X509 printing routines.
4497 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4498 positive and less than q.
4501 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4502 used: it isn't thread safe and the add_lock_callback should handle
4504 [Paul Rose <Paul.Rose@bridge.com>]
4506 *) Verify that incoming data obeys the block size in
4507 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4511 [Ulf Möller, Bodo Möller]
4513 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4514 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4515 when fixing the server behaviour for backwards-compatible 'client
4516 hello' messages. (Note that the attack is impractical against
4517 SSL 3.0 and TLS 1.0 anyway because length and version checking
4518 means that the probability of guessing a valid ciphertext is
4519 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4522 Before 0.9.5, the countermeasure (hide the error by generating a
4523 random 'decryption result') did not work properly because
4524 ERR_clear_error() was missing, meaning that SSL_get_error() would
4525 detect the supposedly ignored error.
4527 Both problems are now fixed.
4530 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4531 (previously it was 1024).
4534 *) Fix for compatibility mode trust settings: ignore trust settings
4535 unless some valid trust or reject settings are present.
4538 *) Fix for blowfish EVP: its a variable length cipher.
4541 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4542 parameters in DSA public key structures and return an error in the
4543 DSA routines if parameters are absent.
4546 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4547 in the current directory if neither $RANDFILE nor $HOME was set.
4548 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4549 caused some confusion to Windows users who haven't defined $HOME.
4550 Thus RAND_file_name() is changed again: e_os.h can define a
4551 DEFAULT_HOME, which will be used if $HOME is not set.
4552 For Windows, we use "C:"; on other platforms, we still require
4553 environment variables.
4555 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4556 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4557 having multiple threads call RAND_poll() concurrently.
4560 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4561 combination of a flag and a thread ID variable.
4562 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4563 flag), *other* threads can enter ssleay_add_bytes without obeying
4564 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4565 that they do not hold after the first thread unsets add_do_not_lock).
4568 *) Change bctest again: '-x' expressions are not available in all
4572 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4574 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4575 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4577 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4578 the default extension for executables, if any. Also, make the perl
4579 scripts that use symlink() to test if it really exists and use "cp"
4580 if it doesn't. All this made OpenSSL compilable and installable in
4584 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4585 If SEQUENCE is length is indefinite just set c->slen to the total
4586 amount of data available.
4587 [Steve Henson, reported by shige@FreeBSD.org]
4588 [This change does not apply to 0.9.7.]
4590 *) Change bctest to avoid here-documents inside command substitution
4591 (workaround for FreeBSD /bin/sh bug).
4592 For compatibility with Ultrix, avoid shell functions (introduced
4593 in the bctest version that searches along $PATH).
4596 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4597 with des_encrypt() defined on some operating systems, like Solaris
4601 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4602 On the Importance of Eliminating Errors in Cryptographic
4603 Computations, J. Cryptology 14 (2001) 2, 101-119,
4604 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4607 *) MIPS assembler BIGNUM division bug fix.
4610 *) Disabled incorrect Alpha assembler code.
4613 *) Fix PKCS#7 decode routines so they correctly update the length
4614 after reading an EOC for the EXPLICIT tag.
4616 [This change does not apply to 0.9.7.]
4618 *) Fix bug in PKCS#12 key generation routines. This was triggered
4619 if a 3DES key was generated with a 0 initial byte. Include
4620 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4621 (but broken) behaviour.
4624 *) Enhance bctest to search for a working bc along $PATH and print
4626 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4628 *) Fix memory leaks in err.c: free err_data string if necessary;
4629 don't write to the wrong index in ERR_set_error_data.
4632 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4636 *) Replace rdtsc with _emit statements for VC++ version 5.
4637 [Jeremy Cooper <jeremy@baymoo.org>]
4639 *) Make it possible to reuse SSLv2 sessions.
4642 *) In copy_email() check for >= 0 as a return value for
4643 X509_NAME_get_index_by_NID() since 0 is a valid index.
4644 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4646 *) Avoid coredump with unsupported or invalid public keys by checking if
4647 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4648 PKCS7_verify() fails with non detached data.
4651 *) Don't use getenv in library functions when run as setuid/setgid.
4652 New function OPENSSL_issetugid().
4655 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4656 due to incorrect handling of multi-threading:
4658 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4660 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4662 3. Count how many times MemCheck_off() has been called so that
4663 nested use can be treated correctly. This also avoids
4664 inband-signalling in the previous code (which relied on the
4665 assumption that thread ID 0 is impossible).
4668 *) Add "-rand" option also to s_client and s_server.
4671 *) Fix CPU detection on Irix 6.x.
4672 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4673 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4675 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4678 [This change does not apply to 0.9.7.]
4680 *) Use the cached encoding of an X509_NAME structure rather than
4681 copying it. This is apparently the reason for the libsafe "errors"
4682 but the code is actually correct.
4685 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4686 Bleichenbacher's DSA attack.
4687 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4688 to be set and top=0 forces the highest bit to be set; top=-1 is new
4689 and leaves the highest bit random.
4690 [Ulf Moeller, Bodo Moeller]
4692 *) In the NCONF_...-based implementations for CONF_... queries
4693 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4694 a temporary CONF structure with the data component set to NULL
4695 (which gives segmentation faults in lh_retrieve).
4696 Instead, use NULL for the CONF pointer in CONF_get_string and
4697 CONF_get_number (which may use environment variables) and directly
4698 return NULL from CONF_get_section.
4701 *) Fix potential buffer overrun for EBCDIC.
4704 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4705 keyUsage if basicConstraints absent for a CA.
4708 *) Make SMIME_write_PKCS7() write mail header values with a format that
4709 is more generally accepted (no spaces before the semicolon), since
4710 some programs can't parse those values properly otherwise. Also make
4711 sure BIO's that break lines after each write do not create invalid
4715 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4716 macros previously used would not encode an empty SEQUENCE OF
4717 and break the signature.
4719 [This change does not apply to 0.9.7.]
4721 *) Zero the premaster secret after deriving the master secret in
4725 *) Add some EVP_add_digest_alias registrations (as found in
4726 OpenSSL_add_all_digests()) to SSL_library_init()
4727 aka OpenSSL_add_ssl_algorithms(). This provides improved
4728 compatibility with peers using X.509 certificates
4729 with unconventional AlgorithmIdentifier OIDs.
4732 *) Fix for Irix with NO_ASM.
4733 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4735 *) ./config script fixes.
4736 [Ulf Moeller, Richard Levitte]
4738 *) Fix 'openssl passwd -1'.
4741 *) Change PKCS12_key_gen_asc() so it can cope with non null
4742 terminated strings whose length is passed in the passlen
4743 parameter, for example from PEM callbacks. This was done
4744 by adding an extra length parameter to asc2uni().
4745 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4747 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4748 call failed, free the DSA structure.
4751 *) Fix to uni2asc() to cope with zero length Unicode strings.
4752 These are present in some PKCS#12 files.
4755 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4756 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4757 when writing a 32767 byte record.
4758 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4760 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4761 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4763 (RSA objects have a reference count access to which is protected
4764 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4765 so they are meant to be shared between threads.)
4766 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4767 "Reddie, Steven" <Steven.Reddie@ca.com>]
4769 *) Fix a deadlock in CRYPTO_mem_leaks().
4772 *) Use better test patterns in bntest.
4775 *) rand_win.c fix for Borland C.
4778 *) BN_rshift bugfix for n == 0.
4781 *) Add a 'bctest' script that checks for some known 'bc' bugs
4782 so that 'make test' does not abort just because 'bc' is broken.
4785 *) Store verify_result within SSL_SESSION also for client side to
4786 avoid potential security hole. (Re-used sessions on the client side
4787 always resulted in verify_result==X509_V_OK, not using the original
4788 result of the server certificate verification.)
4791 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4792 SSL3_RT_APPLICATION_DATA, return 0.
4793 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4797 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4798 releases, have been re-implemented by renaming the previous
4799 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4800 and ssl3_read_internal, respectively, and adding 'peek' parameters
4801 to them. The new ssl[23]_{read,peek} functions are calls to
4802 ssl[23]_read_internal with the 'peek' flag set appropriately.
4803 A 'peek' parameter has also been added to ssl3_read_bytes, which
4804 does the actual work for ssl3_read_internal.
4807 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4808 the method-specific "init()" handler. Also clean up ex_data after
4809 calling the method-specific "finish()" handler. Previously, this was
4810 happening the other way round.
4813 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4814 The previous value, 12, was not always sufficient for BN_mod_exp().
4817 *) Make sure that shared libraries get the internal name engine with
4818 the full version number and not just 0. This should mark the
4819 shared libraries as not backward compatible. Of course, this should
4820 be changed again when we can guarantee backward binary compatibility.
4823 *) Fix typo in get_cert_by_subject() in by_dir.c
4824 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4826 *) Rework the system to generate shared libraries:
4828 - Make note of the expected extension for the shared libraries and
4829 if there is a need for symbolic links from for example libcrypto.so.0
4830 to libcrypto.so.0.9.7. There is extended info in Configure for
4833 - Make as few rebuilds of the shared libraries as possible.
4835 - Still avoid linking the OpenSSL programs with the shared libraries.
4837 - When installing, install the shared libraries separately from the
4841 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4843 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4844 and not in SSL_clear because the latter is also used by the
4845 accept/connect functions; previously, the settings made by
4846 SSL_set_read_ahead would be lost during the handshake.
4847 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4849 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4850 Previously, it would create entries for disableed algorithms no
4854 *) Added several new manual pages for SSL_* function.
4857 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4859 *) In ssl23_get_client_hello, generate an error message when faced
4860 with an initial SSL 3.0/TLS record that is too small to contain the
4861 first two bytes of the ClientHello message, i.e. client_version.
4862 (Note that this is a pathologic case that probably has never happened
4863 in real life.) The previous approach was to use the version number
4864 from the record header as a substitute; but our protocol choice
4865 should not depend on that one because it is not authenticated
4866 by the Finished messages.
4869 *) More robust randomness gathering functions for Windows.
4870 [Jeffrey Altman <jaltman@columbia.edu>]
4872 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4873 not set then we don't setup the error code for issuer check errors
4874 to avoid possibly overwriting other errors which the callback does
4875 handle. If an application does set the flag then we assume it knows
4876 what it is doing and can handle the new informational codes
4880 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4881 a general "ANY" type, as such it should be able to decode anything
4882 including tagged types. However it didn't check the class so it would
4883 wrongly interpret tagged types in the same way as their universal
4884 counterpart and unknown types were just rejected. Changed so that the
4885 tagged and unknown types are handled in the same way as a SEQUENCE:
4886 that is the encoding is stored intact. There is also a new type
4887 "V_ASN1_OTHER" which is used when the class is not universal, in this
4888 case we have no idea what the actual type is so we just lump them all
4892 *) On VMS, stdout may very well lead to a file that is written to
4893 in a record-oriented fashion. That means that every write() will
4894 write a separate record, which will be read separately by the
4895 programs trying to read from it. This can be very confusing.
4897 The solution is to put a BIO filter in the way that will buffer
4898 text until a linefeed is reached, and then write everything a
4899 line at a time, so every record written will be an actual line,
4900 not chunks of lines and not (usually doesn't happen, but I've
4901 seen it once) several lines in one record. BIO_f_linebuffer() is
4904 Currently, it's a VMS-only method, because that's where it has
4905 been tested well enough.
4908 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4909 it can return incorrect results.
4910 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4911 but it was in 0.9.6-beta[12].)
4914 *) Disable the check for content being present when verifying detached
4915 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4916 include zero length content when signing messages.
4919 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4920 BIO_ctrl (for BIO pairs).
4923 *) Add DSO method for VMS.
4926 *) Bug fix: Montgomery multiplication could produce results with the
4930 *) Add RPM specification openssl.spec and modify it to build three
4931 packages. The default package contains applications, application
4932 documentation and run-time libraries. The devel package contains
4933 include files, static libraries and function documentation. The
4934 doc package contains the contents of the doc directory. The original
4935 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4938 *) Add a large number of documentation files for many SSL routines.
4939 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4941 *) Add a configuration entry for Sony News 4.
4942 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4944 *) Don't set the two most significant bits to one when generating a
4945 random number < q in the DSA library.
4948 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4949 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4950 the underlying transport is blocking) if a handshake took place.
4951 (The default behaviour is needed by applications such as s_client
4952 and s_server that use select() to determine when to use SSL_read;
4953 but for applications that know in advance when to expect data, it
4954 just makes things more complicated.)
4957 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4961 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4962 work better on such systems.
4963 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4965 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4966 Update PKCS12_parse() so it copies the friendlyName and the
4967 keyid to the certificates aux info.
4970 *) Fix bug in PKCS7_verify() which caused an infinite loop
4971 if there was more than one signature.
4972 [Sven Uszpelkat <su@celocom.de>]
4974 *) Major change in util/mkdef.pl to include extra information
4975 about each symbol, as well as presentig variables as well
4976 as functions. This change means that there's n more need
4977 to rebuild the .num files when some algorithms are excluded.
4980 *) Allow the verify time to be set by an application,
4981 rather than always using the current time.
4984 *) Phase 2 verify code reorganisation. The certificate
4985 verify code now looks up an issuer certificate by a
4986 number of criteria: subject name, authority key id
4987 and key usage. It also verifies self signed certificates
4988 by the same criteria. The main comparison function is
4989 X509_check_issued() which performs these checks.
4991 Lot of changes were necessary in order to support this
4992 without completely rewriting the lookup code.
4994 Authority and subject key identifier are now cached.
4996 The LHASH 'certs' is X509_STORE has now been replaced
4997 by a STACK_OF(X509_OBJECT). This is mainly because an
4998 LHASH can't store or retrieve multiple objects with
4999 the same hash value.
5001 As a result various functions (which were all internal
5002 use only) have changed to handle the new X509_STORE
5003 structure. This will break anything that messed round
5004 with X509_STORE internally.
5006 The functions X509_STORE_add_cert() now checks for an
5007 exact match, rather than just subject name.
5009 The X509_STORE API doesn't directly support the retrieval
5010 of multiple certificates matching a given criteria, however
5011 this can be worked round by performing a lookup first
5012 (which will fill the cache with candidate certificates)
5013 and then examining the cache for matches. This is probably
5014 the best we can do without throwing out X509_LOOKUP
5015 entirely (maybe later...).
5017 The X509_VERIFY_CTX structure has been enhanced considerably.
5019 All certificate lookup operations now go via a get_issuer()
5020 callback. Although this currently uses an X509_STORE it
5021 can be replaced by custom lookups. This is a simple way
5022 to bypass the X509_STORE hackery necessary to make this
5023 work and makes it possible to use more efficient techniques
5024 in future. A very simple version which uses a simple
5025 STACK for its trusted certificate store is also provided
5026 using X509_STORE_CTX_trusted_stack().
5028 The verify_cb() and verify() callbacks now have equivalents
5029 in the X509_STORE_CTX structure.
5031 X509_STORE_CTX also has a 'flags' field which can be used
5032 to customise the verify behaviour.
5035 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5036 excludes S/MIME capabilities.
5039 *) When a certificate request is read in keep a copy of the
5040 original encoding of the signed data and use it when outputing
5041 again. Signatures then use the original encoding rather than
5042 a decoded, encoded version which may cause problems if the
5043 request is improperly encoded.
5046 *) For consistency with other BIO_puts implementations, call
5047 buffer_write(b, ...) directly in buffer_puts instead of calling
5050 In BIO_puts, increment b->num_write as in BIO_write.
5051 [Peter.Sylvester@EdelWeb.fr]
5053 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5054 BN_zero, we may not return a BIGNUM with an array consisting of
5058 *) Avoid calling abort() from within the library when problems are
5059 detected, except if preprocessor symbols have been defined
5060 (such as REF_CHECK, BN_DEBUG etc.).
5063 *) New openssl application 'rsautl'. This utility can be
5064 used for low level RSA operations. DER public key
5065 BIO/fp routines also added.
5068 *) New Configure entry and patches for compiling on QNX 4.
5069 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5071 *) A demo state-machine implementation was sponsored by
5072 Nuron (http://www.nuron.com/) and is now available in
5073 demos/state_machine.
5076 *) New options added to the 'dgst' utility for signature
5077 generation and verification.
5080 *) Unrecognized PKCS#7 content types are now handled via a
5081 catch all ASN1_TYPE structure. This allows unsupported
5082 types to be stored as a "blob" and an application can
5083 encode and decode it manually.
5086 *) Fix various signed/unsigned issues to make a_strex.c
5088 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5090 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5091 length if passed a buffer. ASN1_INTEGER_to_BN failed
5092 if passed a NULL BN and its argument was negative.
5093 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5095 *) Modification to PKCS#7 encoding routines to output definite
5096 length encoding. Since currently the whole structures are in
5097 memory there's not real point in using indefinite length
5098 constructed encoding. However if OpenSSL is compiled with
5099 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5102 *) Added BIO_vprintf() and BIO_vsnprintf().
5105 *) Added more prefixes to parse for in the the strings written
5106 through a logging bio, to cover all the levels that are available
5107 through syslog. The prefixes are now:
5109 PANIC, EMERG, EMR => LOG_EMERG
5110 ALERT, ALR => LOG_ALERT
5111 CRIT, CRI => LOG_CRIT
5112 ERROR, ERR => LOG_ERR
5113 WARNING, WARN, WAR => LOG_WARNING
5114 NOTICE, NOTE, NOT => LOG_NOTICE
5115 INFO, INF => LOG_INFO
5116 DEBUG, DBG => LOG_DEBUG
5118 and as before, if none of those prefixes are present at the
5119 beginning of the string, LOG_ERR is chosen.
5121 On Win32, the LOG_* levels are mapped according to this:
5123 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5124 LOG_WARNING => EVENTLOG_WARNING_TYPE
5125 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5129 *) Made it possible to reconfigure with just the configuration
5130 argument "reconf" or "reconfigure". The command line arguments
5131 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5132 and are retrieved from there when reconfiguring.
5136 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5138 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5141 *) The obj_dat.pl script was messing up the sorting of object
5142 names. The reason was that it compared the quoted version
5143 of strings as a result "OCSP" > "OCSP Signing" because
5144 " > SPACE. Changed script to store unquoted versions of
5145 names and add quotes on output. It was also omitting some
5146 names from the lookup table if they were given a default
5147 value (that is if SN is missing it is given the same
5148 value as LN and vice versa), these are now added on the
5149 grounds that if an object has a name we should be able to
5150 look it up. Finally added warning output when duplicate
5151 short or long names are found.
5154 *) Changes needed for Tandem NSK.
5155 [Scott Uroff <scott@xypro.com>]
5157 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5158 RSA_padding_check_SSLv23(), special padding was never detected
5159 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5160 version rollback attacks was not effective.
5162 In s23_clnt.c, don't use special rollback-attack detection padding
5163 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5164 client; similarly, in s23_srvr.c, don't do the rollback check if
5165 SSL 2.0 is the only protocol enabled in the server.
5168 *) Make it possible to get hexdumps of unprintable data with 'openssl
5169 asn1parse'. By implication, the functions ASN1_parse_dump() and
5170 BIO_dump_indent() are added.
5173 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5174 these print out strings and name structures based on various
5175 flags including RFC2253 support and proper handling of
5176 multibyte characters. Added options to the 'x509' utility
5177 to allow the various flags to be set.
5180 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5181 Also change the functions X509_cmp_current_time() and
5182 X509_gmtime_adj() work with an ASN1_TIME structure,
5183 this will enable certificates using GeneralizedTime in validity
5184 dates to be checked.
5187 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5188 negative public key encodings) on by default,
5189 NO_NEG_PUBKEY_BUG can be set to disable it.
5192 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5193 content octets. An i2c_ASN1_OBJECT is unnecessary because
5194 the encoding can be trivially obtained from the structure.
5197 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5198 not read locks (CRYPTO_r_[un]lock).
5201 *) A first attempt at creating official support for shared
5202 libraries through configuration. I've kept it so the
5203 default is static libraries only, and the OpenSSL programs
5204 are always statically linked for now, but there are
5205 preparations for dynamic linking in place.
5206 This has been tested on Linux and Tru64.
5209 *) Randomness polling function for Win9x, as described in:
5210 Peter Gutmann, Software Generation of Practically Strong
5214 *) Fix so PRNG is seeded in req if using an already existing
5218 *) New options to smime application. -inform and -outform
5219 allow alternative formats for the S/MIME message including
5220 PEM and DER. The -content option allows the content to be
5221 specified separately. This should allow things like Netscape
5222 form signing output easier to verify.
5225 *) Fix the ASN1 encoding of tags using the 'long form'.
5228 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5229 STRING types. These convert content octets to and from the
5230 underlying type. The actual tag and length octets are
5231 already assumed to have been read in and checked. These
5232 are needed because all other string types have virtually
5233 identical handling apart from the tag. By having versions
5234 of the ASN1 functions that just operate on content octets
5235 IMPLICIT tagging can be handled properly. It also allows
5236 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5237 and ASN1_INTEGER are identical apart from the tag.
5240 *) Change the handling of OID objects as follows:
5242 - New object identifiers are inserted in objects.txt, following
5243 the syntax given in objects.README.
5244 - objects.pl is used to process obj_mac.num and create a new
5246 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5249 This is currently kind of a hack, and the perl code in objects.pl
5250 isn't very elegant, but it works as I intended. The simplest way
5251 to check that it worked correctly is to look in obj_dat.h and
5252 check the array nid_objs and make sure the objects haven't moved
5253 around (this is important!). Additions are OK, as well as
5254 consistent name changes.
5257 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5260 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5261 The given file adds to whatever has already been seeded into the
5262 random pool through the RANDFILE configuration file option or
5263 environment variable, or the default random state file.
5266 *) mkstack.pl now sorts each macro group into lexical order.
5267 Previously the output order depended on the order the files
5268 appeared in the directory, resulting in needless rewriting
5272 *) Patches to make OpenSSL compile under Win32 again. Mostly
5273 work arounds for the VC++ problem that it treats func() as
5274 func(void). Also stripped out the parts of mkdef.pl that
5275 added extra typesafe functions: these no longer exist.
5278 *) Reorganisation of the stack code. The macros are now all
5279 collected in safestack.h . Each macro is defined in terms of
5280 a "stack macro" of the form SKM_<name>(type, a, b). The
5281 DEBUG_SAFESTACK is now handled in terms of function casts,
5282 this has the advantage of retaining type safety without the
5283 use of additional functions. If DEBUG_SAFESTACK is not defined
5284 then the non typesafe macros are used instead. Also modified the
5285 mkstack.pl script to handle the new form. Needs testing to see
5286 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5287 the default if no major problems. Similar behaviour for ASN1_SET_OF
5288 and PKCS12_STACK_OF.
5291 *) When some versions of IIS use the 'NET' form of private key the
5292 key derivation algorithm is different. Normally MD5(password) is
5293 used as a 128 bit RC4 key. In the modified case
5294 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5295 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5296 as the old Netscape_RSA functions except they have an additional
5297 'sgckey' parameter which uses the modified algorithm. Also added
5298 an -sgckey command line option to the rsa utility. Thanks to
5299 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5300 algorithm to openssl-dev.
5303 *) The evp_local.h macros were using 'c.##kname' which resulted in
5304 invalid expansion on some systems (SCO 5.0.5 for example).
5305 Corrected to 'c.kname'.
5306 [Phillip Porch <root@theporch.com>]
5308 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5309 a STACK of email addresses from a certificate or request, these look
5310 in the subject name and the subject alternative name extensions and
5311 omit any duplicate addresses.
5314 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5315 This makes DSA verification about 2 % faster.
5318 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5319 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5320 plus overhead for 1024 bit moduli).
5321 This makes exponentiations about 0.5 % faster for 1024 bit
5322 exponents (as measured by "openssl speed rsa2048").
5325 *) Rename memory handling macros to avoid conflicts with other
5327 Malloc => OPENSSL_malloc
5328 Malloc_locked => OPENSSL_malloc_locked
5329 Realloc => OPENSSL_realloc
5330 Free => OPENSSL_free
5333 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5334 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5337 *) CygWin32 support.
5338 [John Jarvie <jjarvie@newsguy.com>]
5340 *) The type-safe stack code has been rejigged. It is now only compiled
5341 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5342 by default all type-specific stack functions are "#define"d back to
5343 standard stack functions. This results in more streamlined output
5344 but retains the type-safety checking possibilities of the original
5348 *) The STACK code has been cleaned up, and certain type declarations
5349 that didn't make a lot of sense have been brought in line. This has
5350 also involved a cleanup of sorts in safestack.h to more correctly
5351 map type-safe stack functions onto their plain stack counterparts.
5352 This work has also resulted in a variety of "const"ifications of
5353 lots of the code, especially "_cmp" operations which should normally
5354 be prototyped with "const" parameters anyway.
5357 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5358 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5359 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5360 where all of 'md' is used each time the PRNG is used, but 'state'
5361 is used only indexed by a cyclic counter. As entropy may not be
5362 well distributed from the beginning, 'md' is important as a
5363 chaining variable. However, the output function chains only half
5364 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5365 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5366 in all of 'state' being rewritten, with the new values depending
5367 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5370 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5371 the handshake is continued after ssl_verify_cert_chain();
5372 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5373 can lead to 'unexplainable' connection aborts later.
5374 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5376 *) Major EVP API cipher revision.
5377 Add hooks for extra EVP features. This allows various cipher
5378 parameters to be set in the EVP interface. Support added for variable
5379 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5380 setting of RC2 and RC5 parameters.
5382 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5385 Remove lots of duplicated code from the EVP library. For example *every*
5386 cipher init() function handles the 'iv' in the same way according to the
5387 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5388 for CFB and OFB modes they zero ctx->num.
5390 New functionality allows removal of S/MIME code RC2 hack.
5392 Most of the routines have the same form and so can be declared in terms
5395 By shifting this to the top level EVP_CipherInit() it can be removed from
5396 all individual ciphers. If the cipher wants to handle IVs or keys
5397 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5400 Change lots of functions like EVP_EncryptUpdate() to now return a
5401 value: although software versions of the algorithms cannot fail
5402 any installed hardware versions can.
5405 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5406 this option is set, tolerate broken clients that send the negotiated
5407 protocol version number instead of the requested protocol version
5411 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5412 i.e. non-zero for export ciphersuites, zero otherwise.
5413 Previous versions had this flag inverted, inconsistent with
5414 rsa_tmp_cb (..._TMP_RSA_CB).
5415 [Bodo Moeller; problem reported by Amit Chopra]
5417 *) Add missing DSA library text string. Work around for some IIS
5418 key files with invalid SEQUENCE encoding.
5421 *) Add a document (doc/standards.txt) that list all kinds of standards
5422 and so on that are implemented in OpenSSL.
5425 *) Enhance c_rehash script. Old version would mishandle certificates
5426 with the same subject name hash and wouldn't handle CRLs at all.
5427 Added -fingerprint option to crl utility, to support new c_rehash
5431 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5434 *) Fix for SSL server purpose checking. Server checking was
5435 rejecting certificates which had extended key usage present
5436 but no ssl client purpose.
5437 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5439 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5440 is a little unclear about how a blank password is handled.
5441 Since the password in encoded as a BMPString with terminating
5442 double NULL a zero length password would end up as just the
5443 double NULL. However no password at all is different and is
5444 handled differently in the PKCS#12 key generation code. NS
5445 treats a blank password as zero length. MSIE treats it as no
5446 password on export: but it will try both on import. We now do
5447 the same: PKCS12_parse() tries zero length and no password if
5448 the password is set to "" or NULL (NULL is now a valid password:
5449 it wasn't before) as does the pkcs12 application.
5452 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5453 perror when PEM_read_bio_X509_REQ fails, the error message must
5454 be obtained from the error queue.
5457 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5458 it in ERR_remove_state if appropriate, and change ERR_get_state
5459 accordingly to avoid race conditions (this is necessary because
5460 thread_hash is no longer constant once set).
5463 *) Bugfix for linux-elf makefile.one.
5466 *) RSA_get_default_method() will now cause a default
5467 RSA_METHOD to be chosen if one doesn't exist already.
5468 Previously this was only set during a call to RSA_new()
5469 or RSA_new_method(NULL) meaning it was possible for
5470 RSA_get_default_method() to return NULL.
5473 *) Added native name translation to the existing DSO code
5474 that will convert (if the flag to do so is set) filenames
5475 that are sufficiently small and have no path information
5476 into a canonical native form. Eg. "blah" converted to
5477 "libblah.so" or "blah.dll" etc.
5480 *) New function ERR_error_string_n(e, buf, len) which is like
5481 ERR_error_string(e, buf), but writes at most 'len' bytes
5482 including the 0 terminator. For ERR_error_string_n, 'buf'
5484 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5486 *) CONF library reworked to become more general. A new CONF
5487 configuration file reader "class" is implemented as well as a
5488 new functions (NCONF_*, for "New CONF") to handle it. The now
5489 old CONF_* functions are still there, but are reimplemented to
5490 work in terms of the new functions. Also, a set of functions
5491 to handle the internal storage of the configuration data is
5492 provided to make it easier to write new configuration file
5493 reader "classes" (I can definitely see something reading a
5494 configuration file in XML format, for example), called _CONF_*,
5495 or "the configuration storage API"...
5497 The new configuration file reading functions are:
5499 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5500 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5502 NCONF_default, NCONF_WIN32
5504 NCONF_dump_fp, NCONF_dump_bio
5506 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5507 NCONF_new creates a new CONF object. This works in the same way
5508 as other interfaces in OpenSSL, like the BIO interface.
5509 NCONF_dump_* dump the internal storage of the configuration file,
5510 which is useful for debugging. All other functions take the same
5511 arguments as the old CONF_* functions wth the exception of the
5512 first that must be a `CONF *' instead of a `LHASH *'.
5514 To make it easer to use the new classes with the old CONF_* functions,
5515 the function CONF_set_default_method is provided.
5518 *) Add '-tls1' option to 'openssl ciphers', which was already
5519 mentioned in the documentation but had not been implemented.
5520 (This option is not yet really useful because even the additional
5521 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5524 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5525 OpenSSL-based applications) load shared libraries and bind to
5526 them in a portable way.
5527 [Geoff Thorpe, with contributions from Richard Levitte]
5529 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5531 *) Make sure _lrotl and _lrotr are only used with MSVC.
5533 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5534 (the default implementation of RAND_status).
5536 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5537 to '-clrext' (= clear extensions), as intended and documented.
5538 [Bodo Moeller; inconsistency pointed out by Michael Attili
5541 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5542 was larger than the MD block size.
5543 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5545 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5546 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5547 using the passed key: if the passed key was a private key the result
5548 of X509_print(), for example, would be to print out all the private key
5552 *) des_quad_cksum() byte order bug fix.
5553 [Ulf Möller, using the problem description in krb4-0.9.7, where
5554 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5556 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5558 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5560 *) For easily testing in shell scripts whether some command
5561 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5562 returns with exit code 0 iff no command of the given name is available.
5563 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5564 the output goes to stdout and nothing is printed to stderr.
5565 Additional arguments are always ignored.
5567 Since for each cipher there is a command of the same name,
5568 the 'no-cipher' compilation switches can be tested this way.
5570 ('openssl no-XXX' is not able to detect pseudo-commands such
5571 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5574 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5577 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5578 is set; it will be thrown away anyway because each handshake creates
5580 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5581 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5582 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5583 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5586 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5587 'Q' and 'R' lose their special meanings (quit/renegotiate).
5588 This is part of what -quiet does; unlike -quiet, -ign_eof
5589 does not suppress any output.
5592 *) Add compatibility options to the purpose and trust code. The
5593 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5594 accepts a certificate or CA, this was the previous behaviour,
5595 with all the associated security issues.
5597 X509_TRUST_COMPAT is the old trust behaviour: only and
5598 automatically trust self signed roots in certificate store. A
5599 new trust setting X509_TRUST_DEFAULT is used to specify that
5600 a purpose has no associated trust setting and it should instead
5601 use the value in the default purpose.
5604 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5605 and fix a memory leak.
5608 *) In util/mkerr.pl (which implements 'make errors'), preserve
5609 reason strings from the previous version of the .c file, as
5610 the default to have only downcase letters (and digits) in
5611 automatically generated reasons codes is not always appropriate.
5614 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5615 using strerror. Previously, ERR_reason_error_string() returned
5616 library names as reason strings for SYSerr; but SYSerr is a special
5617 case where small numbers are errno values, not library numbers.
5620 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5621 converts DSA parameters into DH parameters. (When creating parameters,
5622 DSA_generate_parameters is used.)
5625 *) Include 'length' (recommended exponent length) in C code generated
5626 by 'openssl dhparam -C'.
5629 *) The second argument to set_label in perlasm was already being used
5630 so couldn't be used as a "file scope" flag. Moved to third argument
5634 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5635 instead of RAND_bytes for encryption IVs and salts.
5638 *) Include RAND_status() into RAND_METHOD instead of implementing
5639 it only for md_rand.c Otherwise replacing the PRNG by calling
5640 RAND_set_rand_method would be impossible.
5643 *) Don't let DSA_generate_key() enter an infinite loop if the random
5644 number generation fails.
5647 *) New 'rand' application for creating pseudo-random output.
5650 *) Added configuration support for Linux/IA64
5651 [Rolf Haberrecker <rolf@suse.de>]
5653 *) Assembler module support for Mingw32.
5656 *) Shared library support for HPUX (in shlib/).
5657 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5659 *) Shared library support for Solaris gcc.
5660 [Lutz Behnke <behnke@trustcenter.de>]
5662 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5664 *) PKCS7_encrypt() was adding text MIME headers twice because they
5665 were added manually and by SMIME_crlf_copy().
5668 *) In bntest.c don't call BN_rand with zero bits argument.
5669 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5671 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5672 case was implemented. This caused BN_div_recp() to fail occasionally.
5675 *) Add an optional second argument to the set_label() in the perl
5676 assembly language builder. If this argument exists and is set
5677 to 1 it signals that the assembler should use a symbol whose
5678 scope is the entire file, not just the current function. This
5679 is needed with MASM which uses the format label:: for this scope.
5680 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5682 *) Change the ASN1 types so they are typedefs by default. Before
5683 almost all types were #define'd to ASN1_STRING which was causing
5684 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5688 *) Change names of new functions to the new get1/get0 naming
5689 convention: After 'get1', the caller owns a reference count
5690 and has to call ..._free; 'get0' returns a pointer to some
5691 data structure without incrementing reference counters.
5692 (Some of the existing 'get' functions increment a reference
5693 counter, some don't.)
5694 Similarly, 'set1' and 'add1' functions increase reference
5695 counters or duplicate objects.
5698 *) Allow for the possibility of temp RSA key generation failure:
5699 the code used to assume it always worked and crashed on failure.
5702 *) Fix potential buffer overrun problem in BIO_printf().
5703 [Ulf Möller, using public domain code by Patrick Powell; problem
5704 pointed out by David Sacerdote <das33@cornell.edu>]
5706 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5707 RAND_egd() and RAND_status(). In the command line application,
5708 the EGD socket can be specified like a seed file using RANDFILE
5712 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5713 Some CAs (e.g. Verisign) distribute certificates in this form.
5716 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5717 list to exclude them. This means that no special compilation option
5718 is needed to use anonymous DH: it just needs to be included in the
5722 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5723 EVP_MD_type. The old functionality is available in a new macro called
5724 EVP_MD_md(). Change code that uses it and update docs.
5727 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5728 where the 'void *' argument is replaced by a function pointer argument.
5729 Previously 'void *' was abused to point to functions, which works on
5730 many platforms, but is not correct. As these functions are usually
5731 called by macros defined in OpenSSL header files, most source code
5732 should work without changes.
5735 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5736 sections with information on -D... compiler switches used for
5737 compiling the library so that applications can see them. To enable
5738 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5739 must be defined. E.g.,
5740 #define OPENSSL_ALGORITHM_DEFINES
5741 #include <openssl/opensslconf.h>
5742 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5743 [Richard Levitte, Ulf and Bodo Möller]
5745 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5749 *) Change the 'other' type in certificate aux info to a STACK_OF
5750 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5751 the required ASN1 format: arbitrary types determined by an OID.
5754 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5755 argument to 'req'. This is not because the function is newer or
5756 better than others it just uses the work 'NEW' in the certificate
5757 request header lines. Some software needs this.
5760 *) Reorganise password command line arguments: now passwords can be
5761 obtained from various sources. Delete the PEM_cb function and make
5762 it the default behaviour: i.e. if the callback is NULL and the
5763 usrdata argument is not NULL interpret it as a null terminated pass
5764 phrase. If usrdata and the callback are NULL then the pass phrase
5765 is prompted for as usual.
5768 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5769 the support is automatically enabled. The resulting binaries will
5770 autodetect the card and use it if present.
5771 [Ben Laurie and Compaq Inc.]
5773 *) Work around for Netscape hang bug. This sends certificate request
5774 and server done in one record. Since this is perfectly legal in the
5775 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5776 the bugs/SSLv3 entry for more info.
5779 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5782 *) Add -rand argument to smime and pkcs12 applications and read/write
5786 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5789 *) Add command line password options to the remaining applications.
5792 *) Bug fix for BN_div_recp() for numerators with an even number of
5796 *) More tests in bntest.c, and changed test_bn output.
5799 *) ./config recognizes MacOS X now.
5802 *) Bug fix for BN_div() when the first words of num and divsor are
5803 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5806 *) Add support for various broken PKCS#8 formats, and command line
5807 options to produce them.
5810 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5811 get temporary BIGNUMs from a BN_CTX.
5814 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5818 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5819 include a #define from the old name to the new. The original intent
5820 was that statically linked binaries could for example just call
5821 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5822 link with digests. This never worked becayse SSLeay_add_all_digests()
5823 and SSLeay_add_all_ciphers() were in the same source file so calling
5824 one would link with the other. They are now in separate source files.
5827 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5830 *) Use a less unusual form of the Miller-Rabin primality test (it used
5831 a binary algorithm for exponentiation integrated into the Miller-Rabin
5832 loop, our standard modexp algorithms are faster).
5835 *) Support for the EBCDIC character set completed.
5836 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5838 *) Source code cleanups: use const where appropriate, eliminate casts,
5839 use void * instead of char * in lhash.
5842 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5843 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5844 this the server could overwrite ephemeral keys that the client
5848 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5849 using 50 iterations of the Rabin-Miller test.
5851 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5852 iterations of the Rabin-Miller test as required by the appendix
5853 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5854 As BN_is_prime_fasttest includes trial division, DSA parameter
5855 generation becomes much faster.
5857 This implies a change for the callback functions in DSA_is_prime
5858 and DSA_generate_parameters: The callback function is called once
5859 for each positive witness in the Rabin-Miller test, not just
5860 occasionally in the inner loop; and the parameters to the
5861 callback function now provide an iteration count for the outer
5862 loop rather than for the current invocation of the inner loop.
5863 DSA_generate_parameters additionally can call the callback
5864 function with an 'iteration count' of -1, meaning that a
5865 candidate has passed the trial division test (when q is generated
5866 from an application-provided seed, trial division is skipped).
5869 *) New function BN_is_prime_fasttest that optionally does trial
5870 division before starting the Rabin-Miller test and has
5871 an additional BN_CTX * argument (whereas BN_is_prime always
5872 has to allocate at least one BN_CTX).
5873 'callback(1, -1, cb_arg)' is called when a number has passed the
5874 trial division stage.
5877 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5881 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5884 *) New function BN_pseudo_rand().
5887 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5888 bignum version of BN_from_montgomery() with the working code from
5889 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5893 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5894 made it impossible to use the same SSL_SESSION data structure in
5895 SSL2 clients in multiple threads.
5898 *) The return value of RAND_load_file() no longer counts bytes obtained
5899 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5900 to seed the PRNG (previously an explicit byte count was required).
5901 [Ulf Möller, Bodo Möller]
5903 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5904 used (char *) instead of (void *) and had casts all over the place.
5907 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5910 *) Retain source code compatibility for BN_prime_checks macro:
5911 BN_is_prime(..., BN_prime_checks, ...) now uses
5912 BN_prime_checks_for_size to determine the appropriate number of
5913 Rabin-Miller iterations.
5916 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5917 DH_CHECK_P_NOT_SAFE_PRIME.
5918 (Check if this is true? OpenPGP calls them "strong".)
5921 *) Merge the functionality of "dh" and "gendh" programs into a new program
5922 "dhparam". The old programs are retained for now but will handle DH keys
5923 (instead of parameters) in future.
5926 *) Make the ciphers, s_server and s_client programs check the return values
5927 when a new cipher list is set.
5930 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5931 ciphers. Before when the 56bit ciphers were enabled the sorting was
5934 The syntax for the cipher sorting has been extended to support sorting by
5935 cipher-strength (using the strength_bits hard coded in the tables).
5936 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5938 Fix a bug in the cipher-command parser: when supplying a cipher command
5939 string with an "undefined" symbol (neither command nor alphanumeric
5940 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5941 an error is flagged.
5943 Due to the strength-sorting extension, the code of the
5944 ssl_create_cipher_list() function was completely rearranged. I hope that
5945 the readability was also increased :-)
5946 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5948 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5949 for the first serial number and places 2 in the serial number file. This
5950 avoids problems when the root CA is created with serial number zero and
5951 the first user certificate has the same issuer name and serial number
5955 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5956 the new code. Add documentation for this stuff.
5959 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5960 X509_*() to X509at_*() on the grounds that they don't handle X509
5961 structures and behave in an analagous way to the X509v3 functions:
5962 they shouldn't be called directly but wrapper functions should be used
5965 So we also now have some wrapper functions that call the X509at functions
5966 when passed certificate requests. (TO DO: similar things can be done with
5967 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5968 things. Some of these need some d2i or i2d and print functionality
5969 because they handle more complex structures.)
5972 *) Add missing #ifndefs that caused missing symbols when building libssl
5973 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5974 NO_RSA in ssl/s2*.c.
5975 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5977 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5978 has a return value which indicates the quality of the random data
5979 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5980 error queue. New function RAND_pseudo_bytes() generates output that is
5981 guaranteed to be unique but not unpredictable. RAND_add is like
5982 RAND_seed, but takes an extra argument for an entropy estimate
5983 (RAND_seed always assumes full entropy).
5986 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5987 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5988 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5989 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5990 false-positive rate of at most 2^-80 for random input.
5993 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5996 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5997 in the 0.9.5 release), this returns the chain
5998 from an X509_CTX structure with a dup of the stack and all
5999 the X509 reference counts upped: so the stack will exist
6000 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6003 Also make SSL_SESSION_print() print out the verify return
6007 *) Add manpage for the pkcs12 command. Also change the default
6008 behaviour so MAC iteration counts are used unless the new
6009 -nomaciter option is used. This improves file security and
6010 only older versions of MSIE (4.0 for example) need it.
6013 *) Honor the no-xxx Configure options when creating .DEF files.
6016 *) Add PKCS#10 attributes to field table: challengePassword,
6017 unstructuredName and unstructuredAddress. These are taken from
6018 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6019 international characters are used.
6021 More changes to X509_ATTRIBUTE code: allow the setting of types
6022 based on strings. Remove the 'loc' parameter when adding
6023 attributes because these will be a SET OF encoding which is sorted
6027 *) Initial changes to the 'req' utility to allow request generation
6028 automation. This will allow an application to just generate a template
6029 file containing all the field values and have req construct the
6032 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6033 used all over the place including certificate requests and PKCS#7
6034 structures. They are currently handled manually where necessary with
6035 some primitive wrappers for PKCS#7. The new functions behave in a
6036 manner analogous to the X509 extension functions: they allow
6037 attributes to be looked up by NID and added.
6039 Later something similar to the X509V3 code would be desirable to
6040 automatically handle the encoding, decoding and printing of the
6041 more complex types. The string types like challengePassword can
6042 be handled by the string table functions.
6044 Also modified the multi byte string table handling. Now there is
6045 a 'global mask' which masks out certain types. The table itself
6046 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6047 is useful when for example there is only one permissible type
6048 (as in countryName) and using the mask might result in no valid
6052 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6053 SSL_get_peer_finished to allow applications to obtain the latest
6054 Finished messages sent to the peer or expected from the peer,
6055 respectively. (SSL_get_peer_finished is usually the Finished message
6056 actually received from the peer, otherwise the protocol will be aborted.)
6058 As the Finished message are message digests of the complete handshake
6059 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6060 be used for external authentication procedures when the authentication
6061 provided by SSL/TLS is not desired or is not enough.
6064 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6065 the host supports BWX extension and if Compaq C is present on the
6066 $PATH. Just exploiting of the BWX extension results in 20-30%
6067 performance kick for some algorithms, e.g. DES and RC4 to mention
6068 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6072 *) Add support for MS "fast SGC". This is arguably a violation of the
6073 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6074 weak crypto and after checking the certificate is SGC a second one
6075 with strong crypto. MS SGC stops the first handshake after receiving
6076 the server certificate message and sends a second client hello. Since
6077 a server will typically do all the time consuming operations before
6078 expecting any further messages from the client (server key exchange
6079 is the most expensive) there is little difference between the two.
6081 To get OpenSSL to support MS SGC we have to permit a second client
6082 hello message after we have sent server done. In addition we have to
6083 reset the MAC if we do get this second client hello.
6086 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6087 if a DER encoded private key is RSA or DSA traditional format. Changed
6088 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6089 format DER encoded private key. Newer code should use PKCS#8 format which
6090 has the key type encoded in the ASN1 structure. Added DER private key
6091 support to pkcs8 application.
6094 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6095 ciphersuites has been selected (as required by the SSL 3/TLS 1
6096 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6097 is set, we interpret this as a request to violate the specification
6098 (the worst that can happen is a handshake failure, and 'correct'
6099 behaviour would result in a handshake failure anyway).
6102 *) In SSL_CTX_add_session, take into account that there might be multiple
6103 SSL_SESSION structures with the same session ID (e.g. when two threads
6104 concurrently obtain them from an external cache).
6105 The internal cache can handle only one SSL_SESSION with a given ID,
6106 so if there's a conflict, we now throw out the old one to achieve
6110 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6111 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6112 some routines that use cipher OIDs: some ciphers do not have OIDs
6113 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6117 *) Simplify the trust setting structure and code. Now we just have
6118 two sequences of OIDs for trusted and rejected settings. These will
6119 typically have values the same as the extended key usage extension
6120 and any application specific purposes.
6122 The trust checking code now has a default behaviour: it will just
6123 check for an object with the same NID as the passed id. Functions can
6124 be provided to override either the default behaviour or the behaviour
6125 for a given id. SSL client, server and email already have functions
6126 in place for compatibility: they check the NID and also return "trusted"
6127 if the certificate is self signed.
6130 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6131 traditional format into an EVP_PKEY structure.
6134 *) Add a password callback function PEM_cb() which either prompts for
6135 a password if usr_data is NULL or otherwise assumes it is a null
6136 terminated password. Allow passwords to be passed on command line
6137 environment or config files in a few more utilities.
6140 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6141 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6142 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6143 Update documentation.
6146 *) Support for ASN1 "NULL" type. This could be handled before by using
6147 ASN1_TYPE but there wasn't any function that would try to read a NULL
6148 and produce an error if it couldn't. For compatibility we also have
6149 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6150 don't allocate anything because they don't need to.
6153 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6155 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6157 *) Rebuild of the memory allocation routines used by OpenSSL code and
6158 possibly others as well. The purpose is to make an interface that
6159 provide hooks so anyone can build a separate set of allocation and
6160 deallocation routines to be used by OpenSSL, for example memory
6161 pool implementations, or something else, which was previously hard
6162 since Malloc(), Realloc() and Free() were defined as macros having
6163 the values malloc, realloc and free, respectively (except for Win32
6164 compilations). The same is provided for memory debugging code.
6165 OpenSSL already comes with functionality to find memory leaks, but
6166 this gives people a chance to debug other memory problems.
6168 With these changes, a new set of functions and macros have appeared:
6170 CRYPTO_set_mem_debug_functions() [F]
6171 CRYPTO_get_mem_debug_functions() [F]
6172 CRYPTO_dbg_set_options() [F]
6173 CRYPTO_dbg_get_options() [F]
6174 CRYPTO_malloc_debug_init() [M]
6176 The memory debug functions are NULL by default, unless the library
6177 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6178 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6179 gives the standard debugging functions that come with OpenSSL) or
6180 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6181 provided by the library user) must be used. When the standard
6182 debugging functions are used, CRYPTO_dbg_set_options can be used to
6183 request additional information:
6184 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6185 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6187 Also, things like CRYPTO_set_mem_functions will always give the
6188 expected result (the new set of functions is used for allocation
6189 and deallocation) at all times, regardless of platform and compiler
6192 To finish it up, some functions that were never use in any other
6193 way than through macros have a new API and new semantic:
6196 CRYPTO_dbg_realloc()
6199 All macros of value have retained their old syntax.
6200 [Richard Levitte and Bodo Moeller]
6202 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6203 ordering of SMIMECapabilities wasn't in "strength order" and there
6204 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6208 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6209 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6210 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6212 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6213 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6214 functionality to handle multipart/signed properly) and a utility
6215 called 'smime' to call all this stuff. This is based on code I
6216 originally wrote for Celo who have kindly allowed it to be
6217 included in OpenSSL.
6220 *) Add variants des_set_key_checked and des_set_key_unchecked of
6221 des_set_key (aka des_key_sched). Global variable des_check_key
6222 decides which of these is called by des_set_key; this way
6223 des_check_key behaves as it always did, but applications and
6224 the library itself, which was buggy for des_check_key == 1,
6225 have a cleaner way to pick the version they need.
6228 *) New function PKCS12_newpass() which changes the password of a
6232 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6233 dynamic mix. In both cases the ids can be used as an index into the
6234 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6235 functions so they accept a list of the field values and the
6236 application doesn't need to directly manipulate the X509_TRUST
6240 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6244 *) Modify the way the V3 extension code looks up extensions. This now
6245 works in a similar way to the object code: we have some "standard"
6246 extensions in a static table which is searched with OBJ_bsearch()
6247 and the application can add dynamic ones if needed. The file
6248 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6249 updated whenever a new extension is added to the core code and kept
6250 in ext_nid order. There is a simple program 'tabtest.c' which checks
6251 this. New extensions are not added too often so this file can readily
6252 be maintained manually.
6254 There are two big advantages in doing things this way. The extensions
6255 can be looked up immediately and no longer need to be "added" using
6256 X509V3_add_standard_extensions(): this function now does nothing.
6257 [Side note: I get *lots* of email saying the extension code doesn't
6258 work because people forget to call this function]
6259 Also no dynamic allocation is done unless new extensions are added:
6260 so if we don't add custom extensions there is no need to call
6261 X509V3_EXT_cleanup().
6264 *) Modify enc utility's salting as follows: make salting the default. Add a
6265 magic header, so unsalted files fail gracefully instead of just decrypting
6266 to garbage. This is because not salting is a big security hole, so people
6267 should be discouraged from doing it.
6270 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6271 digest to be passed on the command line but it only used this
6272 parameter when signing a certificate. Modified so all relevant
6273 operations are affected by the digest parameter including the
6274 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6275 DSA key was used because it didn't fix the digest.
6278 *) Initial certificate chain verify code. Currently tests the untrusted
6279 certificates for consistency with the verify purpose (which is set
6280 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6282 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6283 this is because it will reject chains with invalid extensions whereas
6284 every previous version of OpenSSL and SSLeay made no checks at all.
6286 Trust code: checks the root CA for the relevant trust settings. Trust
6287 settings have an initial value consistent with the verify purpose: e.g.
6288 if the verify purpose is for SSL client use it expects the CA to be
6289 trusted for SSL client use. However the default value can be changed to
6290 permit custom trust settings: one example of this would be to only trust
6291 certificates from a specific "secure" set of CAs.
6293 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6294 which should be used for version portability: especially since the
6295 verify structure is likely to change more often now.
6297 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6298 to set them. If not set then assume SSL clients will verify SSL servers
6301 Two new options to the verify program: -untrusted allows a set of
6302 untrusted certificates to be passed in and -purpose which sets the
6303 intended purpose of the certificate. If a purpose is set then the
6304 new chain verify code is used to check extension consistency.
6307 *) Support for the authority information access extension.
6310 *) Modify RSA and DSA PEM read routines to transparently handle
6311 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6312 public keys in a format compatible with certificate
6313 SubjectPublicKeyInfo structures. Unfortunately there were already
6314 functions called *_PublicKey_* which used various odd formats so
6315 these are retained for compatibility: however the DSA variants were
6316 never in a public release so they have been deleted. Changed dsa/rsa
6317 utilities to handle the new format: note no releases ever handled public
6318 keys so we should be OK.
6320 The primary motivation for this change is to avoid the same fiasco
6321 that dogs private keys: there are several incompatible private key
6322 formats some of which are standard and some OpenSSL specific and
6323 require various evil hacks to allow partial transparent handling and
6324 even then it doesn't work with DER formats. Given the option anything
6325 other than PKCS#8 should be dumped: but the other formats have to
6326 stay in the name of compatibility.
6328 With public keys and the benefit of hindsight one standard format
6329 is used which works with EVP_PKEY, RSA or DSA structures: though
6330 it clearly returns an error if you try to read the wrong kind of key.
6332 Added a -pubkey option to the 'x509' utility to output the public key.
6333 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6334 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6335 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6336 that do the same as the EVP_PKEY_assign_*() except they up the
6337 reference count of the added key (they don't "swallow" the
6341 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6342 CRLs would fail if the file contained no certificates or no CRLs:
6343 added a new function to read in both types and return the number
6344 read: this means that if none are read it will be an error. The
6345 DER versions of the certificate and CRL reader would always fail
6346 because it isn't possible to mix certificates and CRLs in DER format
6347 without choking one or the other routine. Changed this to just read
6348 a certificate: this is the best we can do. Also modified the code
6349 in apps/verify.c to take notice of return codes: it was previously
6350 attempting to read in certificates from NULL pointers and ignoring
6351 any errors: this is one reason why the cert and CRL reader seemed
6352 to work. It doesn't check return codes from the default certificate
6353 routines: these may well fail if the certificates aren't installed.
6356 *) Code to support otherName option in GeneralName.
6359 *) First update to verify code. Change the verify utility
6360 so it warns if it is passed a self signed certificate:
6361 for consistency with the normal behaviour. X509_verify
6362 has been modified to it will now verify a self signed
6363 certificate if *exactly* the same certificate appears
6364 in the store: it was previously impossible to trust a
6365 single self signed certificate. This means that:
6366 openssl verify ss.pem
6367 now gives a warning about a self signed certificate but
6368 openssl verify -CAfile ss.pem ss.pem
6372 *) For servers, store verify_result in SSL_SESSION data structure
6373 (and add it to external session representation).
6374 This is needed when client certificate verifications fails,
6375 but an application-provided verification callback (set by
6376 SSL_CTX_set_cert_verify_callback) allows accepting the session
6377 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6378 but returns 1): When the session is reused, we have to set
6379 ssl->verify_result to the appropriate error code to avoid
6381 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6383 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6384 case in PKCS7_dataInit() where the signed PKCS7 structure
6385 didn't contain any existing data because it was being created.
6386 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6388 *) Add a salt to the key derivation routines in enc.c. This
6389 forms the first 8 bytes of the encrypted file. Also add a
6390 -S option to allow a salt to be input on the command line.
6393 *) New function X509_cmp(). Oddly enough there wasn't a function
6394 to compare two certificates. We do this by working out the SHA1
6395 hash and comparing that. X509_cmp() will be needed by the trust
6399 *) SSL_get1_session() is like SSL_get_session(), but increments
6400 the reference count in the SSL_SESSION returned.
6401 [Geoff Thorpe <geoff@eu.c2.net>]
6403 *) Fix for 'req': it was adding a null to request attributes.
6404 Also change the X509_LOOKUP and X509_INFO code to handle
6405 certificate auxiliary information.
6408 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6412 *) Add the possibility to add extra information to the memory leak
6413 detecting output, to form tracebacks, showing from where each
6414 allocation was originated: CRYPTO_push_info("constant string") adds
6415 the string plus current file name and line number to a per-thread
6416 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6417 is like calling CYRPTO_pop_info() until the stack is empty.
6418 Also updated memory leak detection code to be multi-thread-safe.
6421 *) Add options -text and -noout to pkcs7 utility and delete the
6422 encryption options which never did anything. Update docs.
6425 *) Add options to some of the utilities to allow the pass phrase
6426 to be included on either the command line (not recommended on
6427 OSes like Unix) or read from the environment. Update the
6428 manpages and fix a few bugs.
6431 *) Add a few manpages for some of the openssl commands.
6434 *) Fix the -revoke option in ca. It was freeing up memory twice,
6435 leaking and not finding already revoked certificates.
6438 *) Extensive changes to support certificate auxiliary information.
6439 This involves the use of X509_CERT_AUX structure and X509_AUX
6440 functions. An X509_AUX function such as PEM_read_X509_AUX()
6441 can still read in a certificate file in the usual way but it
6442 will also read in any additional "auxiliary information". By
6443 doing things this way a fair degree of compatibility can be
6444 retained: existing certificates can have this information added
6445 using the new 'x509' options.
6447 Current auxiliary information includes an "alias" and some trust
6448 settings. The trust settings will ultimately be used in enhanced
6449 certificate chain verification routines: currently a certificate
6450 can only be trusted if it is self signed and then it is trusted
6454 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6455 The problem was that one of the replacement routines had not been working
6456 since SSLeay releases. For now the offending routine has been replaced
6457 with non-optimised assembler. Even so, this now gives around 95%
6458 performance improvement for 1024 bit RSA signs.
6461 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6462 handling. Most clients have the effective key size in bits equal to
6463 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6464 A few however don't do this and instead use the size of the decrypted key
6465 to determine the RC2 key length and the AlgorithmIdentifier to determine
6466 the effective key length. In this case the effective key length can still
6467 be 40 bits but the key length can be 168 bits for example. This is fixed
6468 by manually forcing an RC2 key into the EVP_PKEY structure because the
6469 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6470 the key length and effective key length are equal.
6473 *) Add a bunch of functions that should simplify the creation of
6474 X509_NAME structures. Now you should be able to do:
6475 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6476 and have it automatically work out the correct field type and fill in
6477 the structures. The more adventurous can try:
6478 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6479 and it will (hopefully) work out the correct multibyte encoding.
6482 *) Change the 'req' utility to use the new field handling and multibyte
6483 copy routines. Before the DN field creation was handled in an ad hoc
6484 way in req, ca, and x509 which was rather broken and didn't support
6485 BMPStrings or UTF8Strings. Since some software doesn't implement
6486 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6487 using the dirstring_type option. See the new comment in the default
6488 openssl.cnf for more info.
6491 *) Make crypto/rand/md_rand.c more robust:
6492 - Assure unique random numbers after fork().
6493 - Make sure that concurrent threads access the global counter and
6494 md serializably so that we never lose entropy in them
6495 or use exactly the same state in multiple threads.
6496 Access to the large state is not always serializable because
6497 the additional locking could be a performance killer, and
6498 md should be large enough anyway.
6501 *) New file apps/app_rand.c with commonly needed functionality
6502 for handling the random seed file.
6504 Use the random seed file in some applications that previously did not:
6506 dsaparam -genkey (which also ignored its '-rand' option),
6509 x509 (when signing).
6510 Except on systems with /dev/urandom, it is crucial to have a random
6511 seed file at least for key creation, DSA signing, and for DH exchanges;
6512 for RSA signatures we could do without one.
6514 gendh and gendsa (unlike genrsa) used to read only the first byte
6515 of each file listed in the '-rand' option. The function as previously
6516 found in genrsa is now in app_rand.c and is used by all programs
6517 that support '-rand'.
6520 *) In RAND_write_file, use mode 0600 for creating files;
6521 don't just chmod when it may be too late.
6524 *) Report an error from X509_STORE_load_locations
6525 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6528 *) New function ASN1_mbstring_copy() this copies a string in either
6529 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6530 into an ASN1_STRING type. A mask of permissible types is passed
6531 and it chooses the "minimal" type to use or an error if not type
6535 *) Add function equivalents to the various macros in asn1.h. The old
6536 macros are retained with an M_ prefix. Code inside the library can
6537 use the M_ macros. External code (including the openssl utility)
6538 should *NOT* in order to be "shared library friendly".
6541 *) Add various functions that can check a certificate's extensions
6542 to see if it usable for various purposes such as SSL client,
6543 server or S/MIME and CAs of these types. This is currently
6544 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6545 verification. Also added a -purpose flag to x509 utility to
6546 print out all the purposes.
6549 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6553 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6554 for, obtain and decode and extension and obtain its critical flag.
6555 This allows all the necessary extension code to be handled in a
6556 single function call.
6559 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6560 platforms. See crypto/rc4/rc4_enc.c for further details.
6563 *) New -noout option to asn1parse. This causes no output to be produced
6564 its main use is when combined with -strparse and -out to extract data
6565 from a file (which may not be in ASN.1 format).
6568 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6569 when producing the local key id.
6570 [Richard Levitte <levitte@stacken.kth.se>]
6572 *) New option -dhparam in s_server. This allows a DH parameter file to be
6573 stated explicitly. If it is not stated then it tries the first server
6574 certificate file. The previous behaviour hard coded the filename
6578 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6579 a public key to be input or output. For example:
6580 openssl rsa -in key.pem -pubout -out pubkey.pem
6581 Also added necessary DSA public key functions to handle this.
6584 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6585 in the message. This was handled by allowing
6586 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6587 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6589 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6590 to the end of the strings whereas this didn't. This would cause problems
6591 if strings read with d2i_ASN1_bytes() were later modified.
6592 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6594 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6595 data and it contains EOF it will end up returning an error. This is
6596 caused by input 46 bytes long. The cause is due to the way base64
6597 BIOs find the start of base64 encoded data. They do this by trying a
6598 trial decode on each line until they find one that works. When they
6599 do a flag is set and it starts again knowing it can pass all the
6600 data directly through the decoder. Unfortunately it doesn't reset
6601 the context it uses. This means that if EOF is reached an attempt
6602 is made to pass two EOFs through the context and this causes the
6603 resulting error. This can also cause other problems as well. As is
6604 usual with these problems it takes *ages* to find and the fix is
6605 trivial: move one line.
6606 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6608 *) Ugly workaround to get s_client and s_server working under Windows. The
6609 old code wouldn't work because it needed to select() on sockets and the
6610 tty (for keypresses and to see if data could be written). Win32 only
6611 supports select() on sockets so we select() with a 1s timeout on the
6612 sockets and then see if any characters are waiting to be read, if none
6613 are present then we retry, we also assume we can always write data to
6614 the tty. This isn't nice because the code then blocks until we've
6615 received a complete line of data and it is effectively polling the
6616 keyboard at 1s intervals: however it's quite a bit better than not
6617 working at all :-) A dedicated Windows application might handle this
6618 with an event loop for example.
6621 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6622 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6623 will be called when RSA_sign() and RSA_verify() are used. This is useful
6624 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6625 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6626 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6627 This necessitated the support of an extra signature type NID_md5_sha1
6628 for SSL signatures and modifications to the SSL library to use it instead
6629 of calling RSA_public_decrypt() and RSA_private_encrypt().
6632 *) Add new -verify -CAfile and -CApath options to the crl program, these
6633 will lookup a CRL issuers certificate and verify the signature in a
6634 similar way to the verify program. Tidy up the crl program so it
6635 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6636 less strict. It will now permit CRL extensions even if it is not
6637 a V2 CRL: this will allow it to tolerate some broken CRLs.
6640 *) Initialize all non-automatic variables each time one of the openssl
6641 sub-programs is started (this is necessary as they may be started
6642 multiple times from the "OpenSSL>" prompt).
6643 [Lennart Bang, Bodo Moeller]
6645 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6646 removing all other RSA functionality (this is what NO_RSA does). This
6647 is so (for example) those in the US can disable those operations covered
6648 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6652 *) Non-copying interface to BIO pairs.
6653 (still largely untested)
6656 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6657 ASCII string. This was handled independently in various places before.
6660 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6661 UTF8 strings a character at a time.
6664 *) Use client_version from client hello to select the protocol
6665 (s23_srvr.c) and for RSA client key exchange verification
6666 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6669 *) Add various utility functions to handle SPKACs, these were previously
6670 handled by poking round in the structure internals. Added new function
6671 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6672 print, verify and generate SPKACs. Based on an original idea from
6673 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6676 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6679 *) Allow the config file extension section to be overwritten on the
6680 command line. Based on an original idea from Massimiliano Pala
6681 <madwolf@comune.modena.it>. The new option is called -extensions
6682 and can be applied to ca, req and x509. Also -reqexts to override
6683 the request extensions in req and -crlexts to override the crl extensions
6687 *) Add new feature to the SPKAC handling in ca. Now you can include
6688 the same field multiple times by preceding it by "XXXX." for example:
6691 this is the same syntax as used in the req config file.
6694 *) Allow certificate extensions to be added to certificate requests. These
6695 are specified in a 'req_extensions' option of the req section of the
6696 config file. They can be printed out with the -text option to req but
6697 are otherwise ignored at present.
6700 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6701 data read consists of only the final block it would not decrypted because
6702 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6703 A misplaced 'break' also meant the decrypted final block might not be
6704 copied until the next read.
6707 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6708 a few extra parameters to the DH structure: these will be useful if
6709 for example we want the value of 'q' or implement X9.42 DH.
6712 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6713 provides hooks that allow the default DSA functions or functions on a
6714 "per key" basis to be replaced. This allows hardware acceleration and
6715 hardware key storage to be handled without major modification to the
6716 library. Also added low level modexp hooks and CRYPTO_EX structure and
6717 associated functions.
6720 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6721 as "read only": it can't be written to and the buffer it points to will
6722 not be freed. Reading from a read only BIO is much more efficient than
6723 a normal memory BIO. This was added because there are several times when
6724 an area of memory needs to be read from a BIO. The previous method was
6725 to create a memory BIO and write the data to it, this results in two
6726 copies of the data and an O(n^2) reading algorithm. There is a new
6727 function BIO_new_mem_buf() which creates a read only memory BIO from
6728 an area of memory. Also modified the PKCS#7 routines to use read only
6732 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6733 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6734 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6735 but a retry condition occured while trying to read the rest.
6738 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6739 NID_pkcs7_encrypted by default: this was wrong since this should almost
6740 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6741 the encrypted data type: this is a more sensible place to put it and it
6742 allows the PKCS#12 code to be tidied up that duplicated this
6746 *) Changed obj_dat.pl script so it takes its input and output files on
6747 the command line. This should avoid shell escape redirection problems
6751 *) Initial support for certificate extension requests, these are included
6752 in things like Xenroll certificate requests. Included functions to allow
6753 extensions to be obtained and added.
6756 *) -crlf option to s_client and s_server for sending newlines as
6757 CRLF (as required by many protocols).
6760 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6762 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6763 [Ralf S. Engelschall]
6765 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6766 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6768 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6772 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6773 DH parameters/keys (q is lost during that conversion, but the resulting
6774 DH parameters contain its length).
6776 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6777 much faster than DH_generate_parameters (which creates parameters
6778 where p = 2*q + 1), and also the smaller q makes DH computations
6779 much more efficient (160-bit exponentiation instead of 1024-bit
6780 exponentiation); so this provides a convenient way to support DHE
6781 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6782 utter importance to use
6783 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6785 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6786 when such DH parameters are used, because otherwise small subgroup
6787 attacks may become possible!
6790 *) Avoid memory leak in i2d_DHparams.
6793 *) Allow the -k option to be used more than once in the enc program:
6794 this allows the same encrypted message to be read by multiple recipients.
6797 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6798 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6799 it will always use the numerical form of the OID, even if it has a short
6803 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6804 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6805 otherwise bn_mod_exp was called. In the case of hardware keys for example
6806 no private key components need be present and it might store extra data
6807 in the RSA structure, which cannot be accessed from bn_mod_exp.
6808 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6809 private key operations.
6812 *) Added support for SPARC Linux.
6815 *) pem_password_cb function type incompatibly changed from
6816 typedef int pem_password_cb(char *buf, int size, int rwflag);
6818 ....(char *buf, int size, int rwflag, void *userdata);
6819 so that applications can pass data to their callbacks:
6820 The PEM[_ASN1]_{read,write}... functions and macros now take an
6821 additional void * argument, which is just handed through whenever
6822 the password callback is called.
6823 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6825 New function SSL_CTX_set_default_passwd_cb_userdata.
6827 Compatibility note: As many C implementations push function arguments
6828 onto the stack in reverse order, the new library version is likely to
6829 interoperate with programs that have been compiled with the old
6830 pem_password_cb definition (PEM_whatever takes some data that
6831 happens to be on the stack as its last argument, and the callback
6832 just ignores this garbage); but there is no guarantee whatsoever that
6835 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6836 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6837 problems not only on Windows, but also on some Unix platforms.
6838 To avoid problematic command lines, these definitions are now in an
6839 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6840 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6843 *) MIPS III/IV assembler module is reimplemented.
6846 *) More DES library cleanups: remove references to srand/rand and
6847 delete an unused file.
6850 *) Add support for the the free Netwide assembler (NASM) under Win32,
6851 since not many people have MASM (ml) and it can be hard to obtain.
6852 This is currently experimental but it seems to work OK and pass all
6853 the tests. Check out INSTALL.W32 for info.
6856 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6857 without temporary keys kept an extra copy of the server key,
6858 and connections with temporary keys did not free everything in case
6862 *) New function RSA_check_key and new openssl rsa option -check
6863 for verifying the consistency of RSA keys.
6864 [Ulf Moeller, Bodo Moeller]
6866 *) Various changes to make Win32 compile work:
6867 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6868 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6869 comparison" warnings.
6870 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6873 *) Add a debugging option to PKCS#5 v2 key generation function: when
6874 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6875 derived keys are printed to stderr.
6878 *) Copy the flags in ASN1_STRING_dup().
6879 [Roman E. Pavlov <pre@mo.msk.ru>]
6881 *) The x509 application mishandled signing requests containing DSA
6882 keys when the signing key was also DSA and the parameters didn't match.
6884 It was supposed to omit the parameters when they matched the signing key:
6885 the verifying software was then supposed to automatically use the CA's
6886 parameters if they were absent from the end user certificate.
6888 Omitting parameters is no longer recommended. The test was also
6889 the wrong way round! This was probably due to unusual behaviour in
6890 EVP_cmp_parameters() which returns 1 if the parameters match.
6891 This meant that parameters were omitted when they *didn't* match and
6892 the certificate was useless. Certificates signed with 'ca' didn't have
6894 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6896 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6897 The interface is as follows:
6898 Applications can use
6899 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6900 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6901 "off" is now the default.
6902 The library internally uses
6903 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6904 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6905 to disable memory-checking temporarily.
6907 Some inconsistent states that previously were possible (and were
6908 even the default) are now avoided.
6910 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6911 with each memory chunk allocated; this is occasionally more helpful
6912 than just having a counter.
6914 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6916 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6920 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6921 which largely parallels "options", but is for changing API behaviour,
6922 whereas "options" are about protocol behaviour.
6923 Initial "mode" flags are:
6925 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6926 a single record has been written.
6927 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6928 retries use the same buffer location.
6929 (But all of the contents must be
6933 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6936 *) Fix problems with no-hmac etc.
6937 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6939 *) New functions RSA_get_default_method(), RSA_set_method() and
6940 RSA_get_method(). These allows replacement of RSA_METHODs without having
6941 to mess around with the internals of an RSA structure.
6944 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6945 Also really enable memory leak checks in openssl.c and in some
6947 [Chad C. Mulligan, Bodo Moeller]
6949 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6950 up the length of negative integers. This has now been simplified to just
6951 store the length when it is first determined and use it later, rather
6952 than trying to keep track of where data is copied and updating it to
6954 [Steve Henson, reported by Brien Wheeler
6955 <bwheeler@authentica-security.com>]
6957 *) Add a new function PKCS7_signatureVerify. This allows the verification
6958 of a PKCS#7 signature but with the signing certificate passed to the
6959 function itself. This contrasts with PKCS7_dataVerify which assumes the
6960 certificate is present in the PKCS#7 structure. This isn't always the
6961 case: certificates can be omitted from a PKCS#7 structure and be
6962 distributed by "out of band" means (such as a certificate database).
6965 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6966 function prototypes in pem.h, also change util/mkdef.pl to add the
6967 necessary function names.
6970 *) mk1mf.pl (used by Windows builds) did not properly read the
6971 options set by Configure in the top level Makefile, and Configure
6972 was not even able to write more than one option correctly.
6973 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6976 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6977 file to be loaded from a BIO or FILE pointer. The BIO version will
6978 for example allow memory BIOs to contain config info.
6981 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6982 Whoever hopes to achieve shared-library compatibility across versions
6983 must use this, not the compile-time macro.
6984 (Exercise 0.9.4: Which is the minimum library version required by
6986 Note: All this applies only to multi-threaded programs, others don't
6990 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6991 through a BIO pair triggered the default case, i.e.
6992 SSLerr(...,SSL_R_UNKNOWN_STATE).
6995 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6996 can use the SSL library even if none of the specific BIOs is
7000 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7001 for the encoded length.
7002 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7004 *) Add initial documentation of the X509V3 functions.
7007 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7008 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7009 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7010 secure PKCS#8 private key format with a high iteration count.
7013 *) Fix determination of Perl interpreter: A perl or perl5
7014 _directory_ in $PATH was also accepted as the interpreter.
7015 [Ralf S. Engelschall]
7017 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7018 wrong with it but it was very old and did things like calling
7019 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7023 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7024 to use the new extension code.
7027 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7028 with macros. This should make it easier to change their form, add extra
7029 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7033 *) Add to configuration table a new entry that can specify an alternative
7034 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7035 according to Mark Crispin <MRC@Panda.COM>.
7039 *) DES CBC did not update the IV. Weird.
7042 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7043 Changing the behaviour of the former might break existing programs --
7044 where IV updating is needed, des_ncbc_encrypt can be used.
7047 *) When bntest is run from "make test" it drives bc to check its
7048 calculations, as well as internally checking them. If an internal check
7049 fails, it needs to cause bc to give a non-zero result or make test carries
7050 on without noticing the failure. Fixed.
7053 *) DES library cleanups.
7056 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7057 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7058 ciphers. NOTE: although the key derivation function has been verified
7059 against some published test vectors it has not been extensively tested
7060 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7064 *) Instead of "mkdir -p", which is not fully portable, use new
7065 Perl script "util/mkdir-p.pl".
7068 *) Rewrite the way password based encryption (PBE) is handled. It used to
7069 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7070 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7071 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7072 the 'parameter' field of the AlgorithmIdentifier is passed to the
7073 underlying key generation function so it must do its own ASN1 parsing.
7074 This has also changed the EVP_PBE_CipherInit() function which now has a
7075 'parameter' argument instead of literal salt and iteration count values
7076 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7079 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7080 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7081 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7082 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7083 value was just used as a "magic string" and not used directly its
7084 value doesn't matter.
7087 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7091 *) "linux-sparc64" configuration (ultrapenguin).
7092 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7093 "linux-sparc" configuration.
7094 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7096 *) config now generates no-xxx options for missing ciphers.
7099 *) Support the EBCDIC character set (work in progress).
7100 File ebcdic.c not yet included because it has a different license.
7101 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7103 *) Support BS2000/OSD-POSIX.
7104 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7106 *) Make callbacks for key generation use void * instead of char *.
7109 *) Make S/MIME samples compile (not yet tested).
7112 *) Additional typesafe stacks.
7115 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7119 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7121 *) New configuration variant "sco5-gcc".
7123 *) Updated some demos.
7124 [Sean O Riordain, Wade Scholine]
7126 *) Add missing BIO_free at exit of pkcs12 application.
7129 *) Fix memory leak in conf.c.
7132 *) Updates for Win32 to assembler version of MD5.
7135 *) Set #! path to perl in apps/der_chop to where we found it
7136 instead of using a fixed path.
7139 *) SHA library changes for irix64-mips4-cc.
7142 *) Improvements for VMS support.
7146 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7148 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7149 This also avoids the problems with SC4.2 and unpatched SC5.
7150 [Andy Polyakov <appro@fy.chalmers.se>]
7152 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7153 These are required because of the typesafe stack would otherwise break
7154 existing code. If old code used a structure member which used to be STACK
7155 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7156 sk_num or sk_value it would produce an error because the num, data members
7157 are not present in STACK_OF. Now it just produces a warning. sk_set
7158 replaces the old method of assigning a value to sk_value
7159 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7160 that does this will no longer work (and should use sk_set instead) but
7161 this could be regarded as a "questionable" behaviour anyway.
7164 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7165 correctly handle encrypted S/MIME data.
7168 *) Change type of various DES function arguments from des_cblock
7169 (which means, in function argument declarations, pointer to char)
7170 to des_cblock * (meaning pointer to array with 8 char elements),
7171 which allows the compiler to do more typechecking; it was like
7172 that back in SSLeay, but with lots of ugly casts.
7174 Introduce new type const_des_cblock.
7177 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7178 problems: find RecipientInfo structure that matches recipient certificate
7179 and initialise the ASN1 structures properly based on passed cipher.
7182 *) Belatedly make the BN tests actually check the results.
7185 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7186 to and from BNs: it was completely broken. New compilation option
7187 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7188 key elements as negative integers.
7191 *) Reorganize and speed up MD5.
7192 [Andy Polyakov <appro@fy.chalmers.se>]
7195 [Richard Levitte <richard@levitte.org>]
7197 *) New option -out to asn1parse to allow the parsed structure to be
7198 output to a file. This is most useful when combined with the -strparse
7199 option to examine the output of things like OCTET STRINGS.
7202 *) Make SSL library a little more fool-proof by not requiring any longer
7203 that SSL_set_{accept,connect}_state be called before
7204 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7205 in many applications because usually everything *appeared* to work as
7206 intended anyway -- now it really works as intended).
7209 *) Move openssl.cnf out of lib/.
7212 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7213 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7214 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7215 [Ralf S. Engelschall]
7217 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7218 handle PKCS#7 enveloped data properly.
7219 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7221 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7222 copying pointers. The cert_st handling is changed by this in
7223 various ways (and thus what used to be known as ctx->default_cert
7224 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7225 any longer when s->cert does not give us what we need).
7226 ssl_cert_instantiate becomes obsolete by this change.
7227 As soon as we've got the new code right (possibly it already is?),
7228 we have solved a couple of bugs of the earlier code where s->cert
7229 was used as if it could not have been shared with other SSL structures.
7231 Note that using the SSL API in certain dirty ways now will result
7232 in different behaviour than observed with earlier library versions:
7233 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7234 does not influence s as it used to.
7236 In order to clean up things more thoroughly, inside SSL_SESSION
7237 we don't use CERT any longer, but a new structure SESS_CERT
7238 that holds per-session data (if available); currently, this is
7239 the peer's certificate chain and, for clients, the server's certificate
7240 and temporary key. CERT holds only those values that can have
7241 meaningful defaults in an SSL_CTX.
7244 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7245 from the internal representation. Various PKCS#7 fixes: remove some
7246 evil casts and set the enc_dig_alg field properly based on the signing
7250 *) Allow PKCS#12 password to be set from the command line or the
7251 environment. Let 'ca' get its config file name from the environment
7252 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7256 *) Allow certificate policies extension to use an IA5STRING for the
7257 organization field. This is contrary to the PKIX definition but
7258 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7262 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7263 without disallowing inline assembler and the like for non-pedantic builds.
7266 *) Support Borland C++ builder.
7267 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7272 *) SHA-1 cleanups and performance enhancements.
7273 [Andy Polyakov <appro@fy.chalmers.se>]
7275 *) Sparc v8plus assembler for the bignum library.
7276 [Andy Polyakov <appro@fy.chalmers.se>]
7278 *) Accept any -xxx and +xxx compiler options in Configure.
7281 *) Update HPUX configuration.
7284 *) Add missing sk_<type>_unshift() function to safestack.h
7285 [Ralf S. Engelschall]
7287 *) New function SSL_CTX_use_certificate_chain_file that sets the
7288 "extra_cert"s in addition to the certificate. (This makes sense
7289 only for "PEM" format files, as chains as a whole are not
7293 *) Support verify_depth from the SSL API.
7294 x509_vfy.c had what can be considered an off-by-one-error:
7295 Its depth (which was not part of the external interface)
7296 was actually counting the number of certificates in a chain;
7297 now it really counts the depth.
7300 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7301 instead of X509err, which often resulted in confusing error
7302 messages since the error codes are not globally unique
7303 (e.g. an alleged error in ssl3_accept when a certificate
7304 didn't match the private key).
7306 *) New function SSL_CTX_set_session_id_context that allows to set a default
7307 value (so that you don't need SSL_set_session_id_context for each
7308 connection using the SSL_CTX).
7311 *) OAEP decoding bug fix.
7314 *) Support INSTALL_PREFIX for package builders, as proposed by
7318 *) New Configure options "threads" and "no-threads". For systems
7319 where the proper compiler options are known (currently Solaris
7320 and Linux), "threads" is the default.
7323 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7326 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7327 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7328 such as /usr/local/bin.
7331 *) "make linux-shared" to build shared libraries.
7332 [Niels Poppe <niels@netbox.org>]
7334 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7337 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7338 extension adding in x509 utility.
7341 *) Remove NOPROTO sections and error code comments.
7344 *) Partial rewrite of the DEF file generator to now parse the ANSI
7348 *) New Configure options --prefix=DIR and --openssldir=DIR.
7351 *) Complete rewrite of the error code script(s). It is all now handled
7352 by one script at the top level which handles error code gathering,
7353 header rewriting and C source file generation. It should be much better
7354 than the old method: it now uses a modified version of Ulf's parser to
7355 read the ANSI prototypes in all header files (thus the old K&R definitions
7356 aren't needed for error creation any more) and do a better job of
7357 translating function codes into names. The old 'ASN1 error code imbedded
7358 in a comment' is no longer necessary and it doesn't use .err files which
7359 have now been deleted. Also the error code call doesn't have to appear all
7360 on one line (which resulted in some large lines...).
7363 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7366 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7367 0 (which usually indicates a closed connection), but continue reading.
7370 *) Fix some race conditions.
7373 *) Add support for CRL distribution points extension. Add Certificate
7374 Policies and CRL distribution points documentation.
7377 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7380 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7381 8 of keying material. Merlin has also confirmed interop with this fix
7382 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7383 [Merlin Hughes <merlin@baltimore.ie>]
7385 *) Fix lots of warnings.
7386 [Richard Levitte <levitte@stacken.kth.se>]
7388 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7389 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7390 [Richard Levitte <levitte@stacken.kth.se>]
7392 *) Fix problems with sizeof(long) == 8.
7393 [Andy Polyakov <appro@fy.chalmers.se>]
7395 *) Change functions to ANSI C.
7398 *) Fix typos in error codes.
7399 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7401 *) Remove defunct assembler files from Configure.
7404 *) SPARC v8 assembler BIGNUM implementation.
7405 [Andy Polyakov <appro@fy.chalmers.se>]
7407 *) Support for Certificate Policies extension: both print and set.
7408 Various additions to support the r2i method this uses.
7411 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7412 return a const string when you are expecting an allocated buffer.
7415 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7416 types DirectoryString and DisplayText.
7419 *) Add code to allow r2i extensions to access the configuration database,
7420 add an LHASH database driver and add several ctx helper functions.
7423 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7424 fail when they extended the size of a BIGNUM.
7427 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7428 support typesafe stack.
7431 *) Fix typo in SSL_[gs]et_options().
7432 [Nils Frostberg <nils@medcom.se>]
7434 *) Delete various functions and files that belonged to the (now obsolete)
7435 old X509V3 handling code.
7438 *) New Configure option "rsaref".
7441 *) Don't auto-generate pem.h.
7444 *) Introduce type-safe ASN.1 SETs.
7447 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7448 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7450 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7451 that links with OpenSSL (well at least cause lots of warnings), but fear
7452 not: the conversion is trivial, and it eliminates loads of evil casts. A
7453 few STACKed things have been converted already. Feel free to convert more.
7454 In the fullness of time, I'll do away with the STACK type altogether.
7457 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7458 specified in <certfile> by updating the entry in the index.txt file.
7459 This way one no longer has to edit the index.txt file manually for
7460 revoking a certificate. The -revoke option does the gory details now.
7461 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7463 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7464 `-text' option at all and this way the `-noout -text' combination was
7465 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7466 [Ralf S. Engelschall]
7468 *) Make sure a corresponding plain text error message exists for the
7469 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7470 verify callback function determined that a certificate was revoked.
7471 [Ralf S. Engelschall]
7473 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7474 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7475 all available cipers including rc5, which was forgotten until now.
7476 In order to let the testing shell script know which algorithms
7477 are available, a new (up to now undocumented) command
7478 "openssl list-cipher-commands" is used.
7481 *) Bugfix: s_client occasionally would sleep in select() when
7482 it should have checked SSL_pending() first.
7485 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7486 the raw DSA values prior to ASN.1 encoding.
7489 *) Tweaks to Configure
7490 [Niels Poppe <niels@netbox.org>]
7492 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7496 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7499 *) New config option to avoid instructions that are illegal on the 80386.
7500 The default code is faster, but requires at least a 486.
7503 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7504 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7505 same as SSL2_VERSION anyway.
7508 *) New "-showcerts" option for s_client.
7511 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7512 application. Various cleanups and fixes.
7515 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7516 modify error routines to work internally. Add error codes and PBE init
7517 to library startup routines.
7520 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7521 packing functions to asn1 and evp. Changed function names and error
7522 codes along the way.
7525 *) PKCS12 integration: and so it begins... First of several patches to
7526 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7527 objects to objects.h
7530 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7531 and display support for Thawte strong extranet extension.
7534 *) Add LinuxPPC support.
7535 [Jeff Dubrule <igor@pobox.org>]
7537 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7538 bn_div_words in alpha.s.
7539 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7541 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7542 OAEP isn't supported when OpenSSL is built with RSAref.
7543 [Ulf Moeller <ulf@fitug.de>]
7545 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7546 so they no longer are missing under -DNOPROTO.
7547 [Soren S. Jorvang <soren@t.dk>]
7550 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7552 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7553 doesn't work when the session is reused. Coming soon!
7556 *) Fix a security hole, that allows sessions to be reused in the wrong
7557 context thus bypassing client cert protection! All software that uses
7558 client certs and session caches in multiple contexts NEEDS PATCHING to
7559 allow session reuse! A fuller solution is in the works.
7560 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7562 *) Some more source tree cleanups (removed obsolete files
7563 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7564 permission on "config" script to be executable) and a fix for the INSTALL
7566 [Ulf Moeller <ulf@fitug.de>]
7568 *) Remove some legacy and erroneous uses of malloc, free instead of
7570 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7572 *) Make rsa_oaep_test return non-zero on error.
7573 [Ulf Moeller <ulf@fitug.de>]
7575 *) Add support for native Solaris shared libraries. Configure
7576 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7577 if someone would make that last step automatic.
7578 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7580 *) ctx_size was not built with the right compiler during "make links". Fixed.
7583 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7584 except NULL ciphers". This means the default cipher list will no longer
7585 enable NULL ciphers. They need to be specifically enabled e.g. with
7586 the string "DEFAULT:eNULL".
7589 *) Fix to RSA private encryption routines: if p < q then it would
7590 occasionally produce an invalid result. This will only happen with
7591 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7594 *) Be less restrictive and allow also `perl util/perlpath.pl
7595 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7596 because this way one can also use an interpreter named `perl5' (which is
7597 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7598 installed as `perl').
7599 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7601 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7602 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7604 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7605 advapi32.lib to Win32 build and change the pem test comparision
7606 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7607 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7608 and crypto/des/ede_cbcm_enc.c.
7611 *) DES quad checksum was broken on big-endian architectures. Fixed.
7614 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7615 Win32 test batch file so it (might) work again. The Win32 test batch file
7616 is horrible: I feel ill....
7619 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7620 in e_os.h. Audit of header files to check ANSI and non ANSI
7621 sections: 10 functions were absent from non ANSI section and not exported
7622 from Windows DLLs. Fixed up libeay.num for new functions.
7625 *) Make `openssl version' output lines consistent.
7626 [Ralf S. Engelschall]
7628 *) Fix Win32 symbol export lists for BIO functions: Added
7629 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7630 to ms/libeay{16,32}.def.
7631 [Ralf S. Engelschall]
7633 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7634 fine under Unix and passes some trivial tests I've now added. But the
7635 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7636 added to make sure no one expects that this stuff really works in the
7637 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7638 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7640 [Ralf S. Engelschall]
7642 *) Fix the generation of two part addresses in perl.
7643 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7645 *) Add config entry for Linux on MIPS.
7646 [John Tobey <jtobey@channel1.com>]
7648 *) Make links whenever Configure is run, unless we are on Windoze.
7651 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7652 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7656 *) Add a useful kludge to allow package maintainers to specify compiler and
7657 other platforms details on the command line without having to patch the
7658 Configure script everytime: One now can use ``perl Configure
7659 <id>:<details>'', i.e. platform ids are allowed to have details appended
7660 to them (seperated by colons). This is treated as there would be a static
7661 pre-configured entry in Configure's %table under key <id> with value
7662 <details> and ``perl Configure <id>'' is called. So, when you want to
7663 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7664 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7665 now, which overrides the FreeBSD-elf entry on-the-fly.
7666 [Ralf S. Engelschall]
7668 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7671 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7672 on the `perl Configure ...' command line. This way one can compile
7673 OpenSSL libraries with Position Independent Code (PIC) which is needed
7674 for linking it into DSOs.
7675 [Ralf S. Engelschall]
7677 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7681 *) Cleaned up the LICENSE document: The official contact for any license
7682 questions now is the OpenSSL core team under openssl-core@openssl.org.
7683 And add a paragraph about the dual-license situation to make sure people
7684 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7685 to the OpenSSL toolkit.
7686 [Ralf S. Engelschall]
7688 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7689 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7690 Additonally cleaned up the `make links' target: Remove unnecessary
7691 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7692 to speed processing and no longer clutter the display with confusing
7693 stuff. Instead only the actually done links are displayed.
7694 [Ralf S. Engelschall]
7696 *) Permit null encryption ciphersuites, used for authentication only. It used
7697 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7698 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7702 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7703 signed attributes when verifying signatures (this would break them),
7704 the detached data encoding was wrong and public keys obtained using
7705 X509_get_pubkey() weren't freed.
7708 *) Add text documentation for the BUFFER functions. Also added a work around
7709 to a Win95 console bug. This was triggered by the password read stuff: the
7710 last character typed gets carried over to the next fread(). If you were
7711 generating a new cert request using 'req' for example then the last
7712 character of the passphrase would be CR which would then enter the first
7716 *) Added the new `Includes OpenSSL Cryptography Software' button as
7717 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7718 button and can be used by applications based on OpenSSL to show the
7719 relationship to the OpenSSL project.
7720 [Ralf S. Engelschall]
7722 *) Remove confusing variables in function signatures in files
7723 ssl/ssl_lib.c and ssl/ssl.h.
7724 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7726 *) Don't install bss_file.c under PREFIX/include/
7727 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7729 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7730 functions that return function pointers and has support for NT specific
7731 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7732 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7733 unsigned to signed types: this was killing the Win32 compile.
7736 *) Add new certificate file to stack functions,
7737 SSL_add_dir_cert_subjects_to_stack() and
7738 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7739 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7740 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7741 This means that Apache-SSL and similar packages don't have to mess around
7742 to add as many CAs as they want to the preferred list.
7745 *) Experiment with doxygen documentation. Currently only partially applied to
7747 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7748 openssl.doxy as the configuration file.
7751 *) Get rid of remaining C++-style comments which strict C compilers hate.
7752 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7754 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7755 compiled in by default: it has problems with large keys.
7758 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7759 DH private keys and/or callback functions which directly correspond to
7760 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7761 is needed for applications which have to configure certificates on a
7762 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7764 For the RSA certificate situation is makes no difference, but
7765 for the DSA certificate situation this fixes the "no shared cipher"
7766 problem where the OpenSSL cipher selection procedure failed because the
7767 temporary keys were not overtaken from the context and the API provided
7768 no way to reconfigure them.
7769 The new functions now let applications reconfigure the stuff and they
7770 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7771 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7772 non-public-API function ssl_cert_instantiate() is used as a helper
7773 function and also to reduce code redundancy inside ssl_rsa.c.
7774 [Ralf S. Engelschall]
7776 *) Move s_server -dcert and -dkey options out of the undocumented feature
7777 area because they are useful for the DSA situation and should be
7778 recognized by the users.
7779 [Ralf S. Engelschall]
7781 *) Fix the cipher decision scheme for export ciphers: the export bits are
7782 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7783 SSL_EXP_MASK. So, the original variable has to be used instead of the
7784 already masked variable.
7785 [Richard Levitte <levitte@stacken.kth.se>]
7787 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7788 [Richard Levitte <levitte@stacken.kth.se>]
7790 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7791 from `int' to `unsigned int' because it's a length and initialized by
7792 EVP_DigestFinal() which expects an `unsigned int *'.
7793 [Richard Levitte <levitte@stacken.kth.se>]
7795 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7796 script. Instead use the usual Shell->Perl transition trick.
7797 [Ralf S. Engelschall]
7799 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7800 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7801 -noout -modulus' as it's already the case for `openssl rsa -noout
7802 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7803 currently the public key is printed (a decision which was already done by
7804 `openssl dsa -modulus' in the past) which serves a similar purpose.
7805 Additionally the NO_RSA no longer completely removes the whole -modulus
7806 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7808 [Ralf S. Engelschall]
7810 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7811 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7812 [Arne Ansper <arne@ats.cyber.ee>]
7814 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7815 to be added. Now both 'req' and 'ca' can use new objects defined in the
7819 *) Add cool BIO that does syslog (or event log on NT).
7820 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7822 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7823 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7824 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7825 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7828 *) Add preliminary config info for new extension code.
7831 *) Make RSA_NO_PADDING really use no padding.
7832 [Ulf Moeller <ulf@fitug.de>]
7834 *) Generate errors when private/public key check is done.
7837 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7838 for some CRL extensions and new objects added.
7841 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7842 key usage extension and fuller support for authority key id.
7845 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7846 padding method for RSA, which is recommended for new applications in PKCS
7847 #1 v2.0 (RFC 2437, October 1998).
7848 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7849 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7850 against Bleichbacher's attack on RSA.
7851 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7854 *) Updates to the new SSL compression code
7855 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7857 *) Fix so that the version number in the master secret, when passed
7858 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7859 (because the server will not accept higher), that the version number
7860 is 0x03,0x01, not 0x03,0x00
7861 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7863 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7864 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7865 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7868 *) Support for RAW extensions where an arbitrary extension can be
7869 created by including its DER encoding. See apps/openssl.cnf for
7873 *) Make sure latest Perl versions don't interpret some generated C array
7874 code as Perl array code in the crypto/err/err_genc.pl script.
7875 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7877 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7878 not many people have the assembler. Various Win32 compilation fixes and
7879 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7883 *) Modify configure script 'Configure' to automatically create crypto/date.h
7884 file under Win32 and also build pem.h from pem.org. New script
7885 util/mkfiles.pl to create the MINFO file on environments that can't do a
7886 'make files': perl util/mkfiles.pl >MINFO should work.
7889 *) Major rework of DES function declarations, in the pursuit of correctness
7890 and purity. As a result, many evil casts evaporated, and some weirdness,
7891 too. You may find this causes warnings in your code. Zapping your evil
7892 casts will probably fix them. Mostly.
7895 *) Fix for a typo in asn1.h. Bug fix to object creation script
7896 obj_dat.pl. It considered a zero in an object definition to mean
7897 "end of object": none of the objects in objects.h have any zeros
7898 so it wasn't spotted.
7899 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7901 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7902 Masking (CBCM). In the absence of test vectors, the best I have been able
7903 to do is check that the decrypt undoes the encrypt, so far. Send me test
7904 vectors if you have them.
7907 *) Correct calculation of key length for export ciphers (too much space was
7908 allocated for null ciphers). This has not been tested!
7911 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7912 message is now correct (it understands "crypto" and "ssl" on its
7913 command line). There is also now an "update" option. This will update
7914 the util/ssleay.num and util/libeay.num files with any new functions.
7916 perl util/mkdef.pl crypto ssl update
7917 it will update them.
7920 *) Overhauled the Perl interface (perl/*):
7921 - ported BN stuff to OpenSSL's different BN library
7922 - made the perl/ source tree CVS-aware
7923 - renamed the package from SSLeay to OpenSSL (the files still contain
7924 their history because I've copied them in the repository)
7925 - removed obsolete files (the test scripts will be replaced
7926 by better Test::Harness variants in the future)
7927 [Ralf S. Engelschall]
7929 *) First cut for a very conservative source tree cleanup:
7930 1. merge various obsolete readme texts into doc/ssleay.txt
7931 where we collect the old documents and readme texts.
7932 2. remove the first part of files where I'm already sure that we no
7933 longer need them because of three reasons: either they are just temporary
7934 files which were left by Eric or they are preserved original files where
7935 I've verified that the diff is also available in the CVS via "cvs diff
7936 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7937 the crypto/md/ stuff).
7938 [Ralf S. Engelschall]
7940 *) More extension code. Incomplete support for subject and issuer alt
7941 name, issuer and authority key id. Change the i2v function parameters
7942 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7943 what that's for :-) Fix to ASN1 macro which messed up
7944 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7947 *) Preliminary support for ENUMERATED type. This is largely copied from the
7951 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7952 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7954 *) Make sure `make rehash' target really finds the `openssl' program.
7955 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7957 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7958 like to hear about it if this slows down other processors.
7961 *) Add CygWin32 platform information to Configure script.
7962 [Alan Batie <batie@aahz.jf.intel.com>]
7964 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7965 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7967 *) New program nseq to manipulate netscape certificate sequences
7970 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7974 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7975 but the BN code had some problems that would cause failures when
7976 doing certificate verification and some other functions.
7977 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7979 *) Add ASN1 and PEM code to support netscape certificate sequences.
7982 *) Add ASN1 and PEM code to support netscape certificate sequences.
7985 *) Add several PKIX and private extended key usage OIDs.
7988 *) Modify the 'ca' program to handle the new extension code. Modify
7989 openssl.cnf for new extension format, add comments.
7992 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7993 and add a sample to openssl.cnf so req -x509 now adds appropriate
7997 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7998 error code, add initial support to X509_print() and x509 application.
8001 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8002 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8003 stuff is currently isolated and isn't even compiled yet.
8006 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8007 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8008 Removed the versions check from X509 routines when loading extensions:
8009 this allows certain broken certificates that don't set the version
8010 properly to be processed.
8013 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8014 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8015 can still be regenerated with "make depend".
8018 *) Spelling mistake in C version of CAST-128.
8019 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8021 *) Changes to the error generation code. The perl script err-code.pl
8022 now reads in the old error codes and retains the old numbers, only
8023 adding new ones if necessary. It also only changes the .err files if new
8024 codes are added. The makefiles have been modified to only insert errors
8025 when needed (to avoid needlessly modifying header files). This is done
8026 by only inserting errors if the .err file is newer than the auto generated
8027 C file. To rebuild all the error codes from scratch (the old behaviour)
8028 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8029 or delete all the .err files.
8032 *) CAST-128 was incorrectly implemented for short keys. The C version has
8033 been fixed, but is untested. The assembler versions are also fixed, but
8034 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8035 to regenerate it if needed.
8036 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8037 Hagino <itojun@kame.net>]
8039 *) File was opened incorrectly in randfile.c.
8040 [Ulf Möller <ulf@fitug.de>]
8042 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8043 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8044 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8045 al: it's just almost always a UTCTime. Note this patch adds new error
8046 codes so do a "make errors" if there are problems.
8049 *) Correct Linux 1 recognition in config.
8050 [Ulf Möller <ulf@fitug.de>]
8052 *) Remove pointless MD5 hash when using DSA keys in ca.
8053 [Anonymous <nobody@replay.com>]
8055 *) Generate an error if given an empty string as a cert directory. Also
8056 generate an error if handed NULL (previously returned 0 to indicate an
8057 error, but didn't set one).
8058 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8060 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8063 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8064 parameters. This was causing a warning which killed off the Win32 compile.
8067 *) Remove C++ style comments from crypto/bn/bn_local.h.
8068 [Neil Costigan <neil.costigan@celocom.com>]
8070 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8071 based on a text string, looking up short and long names and finally
8072 "dot" format. The "dot" format stuff didn't work. Added new function
8073 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8074 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8075 OID is not part of the table.
8078 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8079 X509_LOOKUP_by_alias().
8082 *) Sort openssl functions by name.
8085 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8086 encryption from sample DSA keys (in case anyone is interested the password
8090 *) Make _all_ *_free functions accept a NULL pointer.
8091 [Frans Heymans <fheymans@isaserver.be>]
8093 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8095 [Anonymous <nobody@replay.com>]
8097 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8098 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8100 *) Don't blow it for numeric -newkey arguments to apps/req.
8101 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8103 *) Temp key "for export" tests were wrong in s3_srvr.c.
8104 [Anonymous <nobody@replay.com>]
8106 *) Add prototype for temp key callback functions
8107 SSL_CTX_set_tmp_{rsa,dh}_callback().
8110 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8111 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8114 *) X509_name_add_entry() freed the wrong thing after an error.
8115 [Arne Ansper <arne@ats.cyber.ee>]
8117 *) rsa_eay.c would attempt to free a NULL context.
8118 [Arne Ansper <arne@ats.cyber.ee>]
8120 *) BIO_s_socket() had a broken should_retry() on Windoze.
8121 [Arne Ansper <arne@ats.cyber.ee>]
8123 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8124 [Arne Ansper <arne@ats.cyber.ee>]
8126 *) Make sure the already existing X509_STORE->depth variable is initialized
8127 in X509_STORE_new(), but document the fact that this variable is still
8128 unused in the certificate verification process.
8129 [Ralf S. Engelschall]
8131 *) Fix the various library and apps files to free up pkeys obtained from
8132 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8135 *) Fix reference counting in X509_PUBKEY_get(). This makes
8136 demos/maurice/example2.c work, amongst others, probably.
8137 [Steve Henson and Ben Laurie]
8139 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8140 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8141 are no longer created. This way we have a single and consistent command
8142 line interface `openssl <command>', similar to `cvs <command>'.
8143 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8145 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8146 BIT STRING wrapper always have zero unused bits.
8149 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8152 *) Make the top-level INSTALL documentation easier to understand.
8155 *) Makefiles updated to exit if an error occurs in a sub-directory
8156 make (including if user presses ^C) [Paul Sutton]
8158 *) Make Montgomery context stuff explicit in RSA data structure.
8161 *) Fix build order of pem and err to allow for generated pem.h.
8164 *) Fix renumbering bug in X509_NAME_delete_entry().
8167 *) Enhanced the err-ins.pl script so it makes the error library number
8168 global and can add a library name. This is needed for external ASN1 and
8169 other error libraries.
8172 *) Fixed sk_insert which never worked properly.
8175 *) Fix ASN1 macros so they can handle indefinite length construted
8176 EXPLICIT tags. Some non standard certificates use these: they can now
8180 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8181 into a single doc/ssleay.txt bundle. This way the information is still
8182 preserved but no longer messes up this directory. Now it's new room for
8183 the new set of documenation files.
8184 [Ralf S. Engelschall]
8186 *) SETs were incorrectly DER encoded. This was a major pain, because they
8187 shared code with SEQUENCEs, which aren't coded the same. This means that
8188 almost everything to do with SETs or SEQUENCEs has either changed name or
8189 number of arguments.
8190 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8192 *) Fix test data to work with the above.
8195 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8196 was already fixed by Eric for 0.9.1 it seems.
8197 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8199 *) Autodetect FreeBSD3.
8202 *) Fix various bugs in Configure. This affects the following platforms:
8206 unixware-2.0-pentium
8210 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8211 before they are needed.
8214 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8218 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8220 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8221 changed SSLeay to OpenSSL in version strings.
8222 [Ralf S. Engelschall]
8224 *) Some fixups to the top-level documents.
8227 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8228 because the symlink to include/ was missing.
8229 [Ralf S. Engelschall]
8231 *) Incorporated the popular no-RSA/DSA-only patches
8232 which allow to compile a RSA-free SSLeay.
8233 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8235 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8236 when "ssleay" is still not found.
8237 [Ralf S. Engelschall]
8239 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8240 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8242 *) Updated the README file.
8243 [Ralf S. Engelschall]
8245 *) Added various .cvsignore files in the CVS repository subdirs
8246 to make a "cvs update" really silent.
8247 [Ralf S. Engelschall]
8249 *) Recompiled the error-definition header files and added
8250 missing symbols to the Win32 linker tables.
8251 [Ralf S. Engelschall]
8253 *) Cleaned up the top-level documents;
8254 o new files: CHANGES and LICENSE
8255 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8256 o merged COPYRIGHT into LICENSE
8257 o removed obsolete TODO file
8258 o renamed MICROSOFT to INSTALL.W32
8259 [Ralf S. Engelschall]
8261 *) Removed dummy files from the 0.9.1b source tree:
8262 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8263 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8264 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8265 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8266 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8267 [Ralf S. Engelschall]
8269 *) Added various platform portability fixes.
8272 *) The Genesis of the OpenSSL rpject:
8273 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8274 Young and Tim J. Hudson created while they were working for C2Net until
8276 [The OpenSSL Project]
8279 Changes between 0.9.0b and 0.9.1b [not released]
8281 *) Updated a few CA certificates under certs/
8284 *) Changed some BIGNUM api stuff.
8287 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8288 DGUX x86, Linux Alpha, etc.
8291 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8292 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8296 *) Add -strparse option to asn1pars program which parses nested
8298 [Dr Stephen Henson <shenson@bigfoot.com>]
8300 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8303 *) DSA fix for "ca" program.
8306 *) Added "-genkey" option to "dsaparam" program.
8309 *) Added RIPE MD160 (rmd160) message digest.
8312 *) Added -a (all) option to "ssleay version" command.
8315 *) Added PLATFORM define which is the id given to Configure.
8318 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8321 *) Extended the ASN.1 parser routines.
8324 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8327 *) Added a BN_CTX to the BN library.
8330 *) Fixed the weak key values in DES library
8333 *) Changed API in EVP library for cipher aliases.
8336 *) Added support for RC2/64bit cipher.
8339 *) Converted the lhash library to the crypto/mem.c functions.
8342 *) Added more recognized ASN.1 object ids.
8345 *) Added more RSA padding checks for SSL/TLS.
8348 *) Added BIO proxy/filter functionality.
8351 *) Added extra_certs to SSL_CTX which can be used
8352 send extra CA certificates to the client in the CA cert chain sending
8353 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8356 *) Now Fortezza is denied in the authentication phase because
8357 this is key exchange mechanism is not supported by SSLeay at all.
8360 *) Additional PKCS1 checks.
8363 *) Support the string "TLSv1" for all TLS v1 ciphers.
8366 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8367 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8370 *) Fixed a few memory leaks.
8373 *) Fixed various code and comment typos.
8376 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8377 bytes sent in the client random.
8378 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob