5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) New option -sigopt to dgst utility. Update dgst to use
8 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
9 alternative signing paramaters such as X9.31 or PSS in the dgst
13 *) Change ssl_cipher_apply_rule(), the internal function that does
14 the work each time a ciphersuite string requests enabling
15 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
16 removing ("!foo+bar") a class of ciphersuites: Now it maintains
17 the order of disabled ciphersuites such that those ciphersuites
18 that most recently went from enabled to disabled not only stay
19 in order with respect to each other, but also have higher priority
20 than other disabled ciphersuites the next time ciphersuites are
23 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
24 the same ciphersuites as with "HIGH" alone, but in a specific
25 order where the PSK ciphersuites come first (since they are the
26 most recently disabled ciphersuites when "HIGH" is parsed).
28 Also, change ssl_create_cipher_list() (using this new
29 funcionality) such that between otherwise identical
30 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
34 *) Change ssl_create_cipher_list() so that it automatically
35 arranges the ciphersuites in reasonable order before starting
36 to process the rule string. Thus, the definition for "DEFAULT"
37 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
38 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
39 This makes it much easier to arrive at a reasonable default order
40 in applications for which anonymous ciphers are OK (meaning
41 that you can't actually use DEFAULT).
42 [Bodo Moeller; suggested by Victor Duchovni]
44 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
45 processing) into multiple integers instead of setting
46 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
47 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
48 (These masks as well as the individual bit definitions are hidden
49 away into the non-exported interface ssl/ssl_locl.h, so this
50 change to the definition of the SSL_CIPHER structure shouldn't
51 affect applications.) This give us more bits for each of these
52 categories, so there is no longer a need to coagulate AES128 and
53 AES256 into a single algorithm bit, and to coagulate Camellia128
54 and Camellia256 into a single algorithm bit, which has led to all
57 Thus, among other things, the kludge introduced in 0.9.7m and
58 0.9.8e for masking out AES256 independently of AES128 or masking
59 out Camellia256 independently of AES256 is not needed here in 0.9.9.
61 With the change, we also introduce new ciphersuite aliases that
62 so far were missing: "AES128", "AES256", "CAMELLIA128", and
66 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
67 Use the leftmost N bytes of the signature input if the input is
68 larger than the prime q (with N being the size in bytes of q).
71 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
72 it yet and it is largely untested.
75 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
78 *) Initial incomplete changes to avoid need for function casts in OpenSSL
79 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
80 their use. Safestack is reimplemented using inline functions: tests show
81 that these calls are typically optimized away by compilers so they have
82 no additional overhead. Update ASN1 to avoid use of legacy functions.
85 *) Win32/64 targets are linked with Winsock2.
88 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
89 to external functions. This can be used to increase CRL handling
90 efficiency especially when CRLs are very large by (for example) storing
91 the CRL revoked certificates in a database.
94 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
95 new CRLs added to a directory can be used. New command line option
96 -verify_return_error to s_client and s_server. This causes real errors
97 to be returned by the verify callback instead of carrying on no matter
98 what. This reflects the way a "real world" verify callback would behave.
101 *) GOST engine, supporting several GOST algorithms and public key formats.
102 Kindly donated by Cryptocom.
105 *) Partial support for Issuing Distribution Point CRL extension. CRLs
106 partitioned by DP are handled but no indirect CRL or reason partitioning
107 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
108 selected via a scoring technique which handles IDP and AKID in CRLs.
111 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
112 will ultimately be used for all verify operations: this will remove the
113 X509_STORE dependency on certificate verification and allow alternative
114 lookup methods. X509_STORE based implementations of these two callbacks.
117 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
118 Modify get_crl() to find a valid (unexpired) CRL if possible.
121 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
122 this would be called X509_CRL_cmp() but that name is already used by
123 a function that just compares CRL issuer names. Cache several CRL
124 extensions in X509_CRL structure and cache CRLDP in X509.
127 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
128 this maps equivalent X509_NAME structures into a consistent structure.
129 Name comparison can then be performed rapidly using memcmp().
132 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
136 *) Allow digests to supply their own micalg string for S/MIME type using
137 the ctrl EVP_MD_CTRL_MICALG.
140 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
141 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
142 ctrl. It can then customise the structure before and/or after signing
146 *) New function OBJ_add_sigid() to allow application defined signature OIDs
147 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
148 to free up any added signature OIDs.
151 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
152 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
153 digest and cipher tables. New options added to openssl utility:
154 list-message-digest-algorithms and list-cipher-algorithms.
157 *) In addition to the numerical (unsigned long) thread ID, provide
158 for a pointer (void *) thread ID. This helps accomodate systems
159 that do not provide an unsigned long thread ID. OpenSSL assumes
160 it is in the same thread iff both the numerical and the pointer
161 thread ID agree; so applications are just required to define one
162 of them appropriately (e.g., by using a pointer to a per-thread
163 memory object malloc()ed by the application for the pointer-type
164 thread ID). Exactly analoguous to the existing functions
166 void CRYPTO_set_id_callback(unsigned long (*func)(void));
167 unsigned long (*CRYPTO_get_id_callback(void))(void);
168 unsigned long CRYPTO_thread_id(void);
170 we now have additional functions
172 void CRYPTO_set_idptr_callback(void *(*func)(void));
173 void *(*CRYPTO_get_idptr_callback(void))(void);
174 void *CRYPTO_thread_idptr(void);
176 also in <openssl/crypto.h>. The default value for
177 CRYPTO_thread_idptr() if the application has not provided its own
181 *) Change the array representation of binary polynomials: the list
182 of degrees of non-zero coefficients is now terminated with -1.
183 Previously it was terminated with 0, which was also part of the
184 value; thus, the array representation was not applicable to
185 polynomials where t^0 has coefficient zero. This change makes
186 the array representation useful in a more general context.
189 *) Various modifications and fixes to SSL/TLS cipher string
190 handling. For ECC, the code now distinguishes between fixed ECDH
191 with RSA certificates on the one hand and with ECDSA certificates
192 on the other hand, since these are separate ciphersuites. The
193 unused code for Fortezza ciphersuites has been removed.
195 For consistency with EDH, ephemeral ECDH is now called "EECDH"
196 (not "ECDHE"). For consistency with the code for DH
197 certificates, use of ECDH certificates is now considered ECDH
198 authentication, not RSA or ECDSA authentication (the latter is
199 merely the CA's signing algorithm and not actively used in the
202 The temporary ciphersuite alias "ECCdraft" is no longer
203 available, and ECC ciphersuites are no longer excluded from "ALL"
204 and "DEFAULT". The following aliases now exist for RFC 4492
205 ciphersuites, most of these by analogy with the DH case:
207 kECDHr - ECDH cert, signed with RSA
208 kECDHe - ECDH cert, signed with ECDSA
209 kECDH - ECDH cert (signed with either RSA or ECDSA)
210 kEECDH - ephemeral ECDH
211 ECDH - ECDH cert or ephemeral ECDH
217 AECDH - anonymous ECDH
218 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
222 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
223 Use correct micalg parameters depending on digest(s) in signed message.
226 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
227 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
230 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
231 an engine to register a method. Add ENGINE lookups for methods and
232 functional reference processing.
235 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
236 EVP_{Sign,Verify}* which allow an application to customise the signature
240 *) New -resign option to smime utility. This adds one or more signers
241 to an existing PKCS#7 signedData structure. Also -md option to use an
242 alternative message digest algorithm for signing.
245 *) Tidy up PKCS#7 routines and add new functions to make it easier to
246 create PKCS7 structures containing multiple signers. Update smime
247 application to support multiple signers.
250 *) New -macalg option to pkcs12 utility to allow setting of an alternative
254 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
255 Reorganize PBE internals to lookup from a static table using NIDs,
256 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
257 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
258 PRF which will be automatically used with PBES2.
261 *) Replace the algorithm specific calls to generate keys in "req" with the
265 *) Update PKCS#7 enveloped data routines to use new API. This is now
266 supported by any public key method supporting the encrypt operation. A
267 ctrl is added to allow the public key algorithm to examine or modify
268 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
272 *) Add a ctrl to asn1 method to allow a public key algorithm to express
273 a default digest type to use. In most cases this will be SHA1 but some
274 algorithms (such as GOST) need to specify an alternative digest. The
275 return value indicates how strong the prefernce is 1 means optional and
276 2 is mandatory (that is it is the only supported type). Modify
277 ASN1_item_sign() to accept a NULL digest argument to indicate it should
278 use the default md. Update openssl utilities to use the default digest
279 type for signing if it is not explicitly indicated.
282 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
283 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
284 signing method from the key type. This effectively removes the link
285 between digests and public key types.
288 *) Add an OID cross reference table and utility functions. Its purpose is to
289 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
290 rsaEncryption. This will allow some of the algorithm specific hackery
291 needed to use the correct OID to be removed.
294 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
295 structures for PKCS7_sign(). They are now set up by the relevant public
299 *) Add provisional EC pkey method with support for ECDSA and ECDH.
302 *) Add support for key derivation (agreement) in the API, DH method and
306 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
307 public and private key formats. As a side effect these add additional
308 command line functionality not previously available: DSA signatures can be
309 generated and verified using pkeyutl and DH key support and generation in
314 [Oliver Tappe <zooey@hirschkaefer.de>]
316 *) New make target "install_html_docs" installs HTML renditions of the
318 [Oliver Tappe <zooey@hirschkaefer.de>]
320 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
321 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
322 support key and parameter generation and add initial key generation
323 functionality for RSA.
326 *) Add functions for main EVP_PKEY_method operations. The undocumented
327 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
328 EVP_PKEY_{encrypt,decrypt}_old.
331 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
332 key API, doesn't do much yet.
335 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
336 public key algorithms. New option to openssl utility:
337 "list-public-key-algorithms" to print out info.
340 *) Implement the Supported Elliptic Curves Extension for
341 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
344 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
345 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
348 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
349 utilities such as rsa, dsa, dsaparam etc except they process any key
353 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
354 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
355 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
359 *) Initial support for pluggable public key ASN1.
360 De-spaghettify the public key ASN1 handling. Move public and private
361 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
362 algorithm specific handling to a single module within the relevant
363 algorithm directory. Add functions to allow (near) opaque processing
364 of public and private key structures.
367 *) Implement the Supported Point Formats Extension for
368 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
371 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
372 for the psk identity [hint] and the psk callback functions to the
373 SSL_SESSION, SSL and SSL_CTX structure.
376 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
380 SSL_CTX_use_psk_identity_hint
381 SSL_get_psk_identity_hint
383 SSL_use_psk_identity_hint
385 [Mika Kousa and Pasi Eronen of Nokia Corporation]
387 *) Add RFC 3161 compliant time stamp request creation, response generation
388 and response verification functionality.
389 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
391 *) Add initial support for TLS extensions, specifically for the server_name
392 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
393 have new members for a host name. The SSL data structure has an
394 additional member SSL_CTX *initial_ctx so that new sessions can be
395 stored in that context to allow for session resumption, even after the
396 SSL has been switched to a new SSL_CTX in reaction to a client's
397 server_name extension.
399 New functions (subject to change):
402 SSL_get_servername_type()
405 New CTRL codes and macros (subject to change):
407 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
408 - SSL_CTX_set_tlsext_servername_callback()
409 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
410 - SSL_CTX_set_tlsext_servername_arg()
411 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
413 openssl s_client has a new '-servername ...' option.
415 openssl s_server has new options '-servername_host ...', '-cert2 ...',
416 '-key2 ...', '-servername_fatal' (subject to change). This allows
417 testing the HostName extension for a specific single host name ('-cert'
418 and '-key' remain fallbacks for handshakes without HostName
419 negotiation). If the unrecogninzed_name alert has to be sent, this by
420 default is a warning; it becomes fatal with the '-servername_fatal'
423 [Peter Sylvester, Remy Allais, Christophe Renou]
425 *) Whirlpool hash implementation is added.
428 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
429 bn(64,32). Because of instruction set limitations it doesn't have
430 any negative impact on performance. This was done mostly in order
431 to make it possible to share assembler modules, such as bn_mul_mont
432 implementations, between 32- and 64-bit builds without hassle.
435 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
436 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
440 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
441 dedicated Montgomery multiplication procedure, is introduced.
442 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
443 "64-bit" performance on certain 32-bit targets.
446 *) New option SSL_OP_NO_COMP to disable use of compression selectively
447 in SSL structures. New SSL ctrl to set maximum send fragment size.
448 Save memory by seeting the I/O buffer sizes dynamically instead of
449 using the maximum available value.
452 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
453 in addition to the text details.
456 *) Very, very preliminary EXPERIMENTAL support for printing of general
457 ASN1 structures. This currently produces rather ugly output and doesn't
458 handle several customised structures at all.
461 *) Integrated support for PVK file format and some related formats such
462 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
463 these in the 'rsa' and 'dsa' utilities.
466 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
469 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
470 place for the (very old) "NETSCAPE" format certificates which are now
471 handled using new ASN1 code equivalents.
474 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
475 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
476 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
479 *) Modify CRL distribution points extension code to print out previously
480 unsupported fields. Enhance extension setting code to allow setting of
484 *) Add print and set support for Issuing Distribution Point CRL extension.
487 *) Change 'Configure' script to enable Camellia by default.
490 Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
492 *) Mitigate branch prediction attacks, which can be practical if a
493 single processor is shared, allowing a spy process to extract
494 information. For detailed background information, see
495 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
496 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
497 and Necessary Software Countermeasures"). The core of the change
498 are new versions BN_div_no_branch() and
499 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
500 respectively, which are slower, but avoid the security-relevant
501 conditional branches. These are automatically called by BN_div()
502 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
503 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
504 remove a conditional branch.
506 BN_FLG_CONSTTIME is the new name for the previous
507 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
508 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
509 in the exponent causes BN_mod_exp_mont() to use the alternative
510 implementation in BN_mod_exp_mont_consttime().) The old name
511 remains as a deprecated alias.
513 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
514 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
515 constant-time implementations for more than just exponentiation.
516 Here too the old name is kept as a deprecated alias.
518 BN_BLINDING_new() will now use BN_dup() for the modulus so that
519 the BN_BLINDING structure gets an independent copy of the
520 modulus. This means that the previous "BIGNUM *m" argument to
521 BN_BLINDING_new() and to BN_BLINDING_create_param() now
522 essentially becomes "const BIGNUM *m", although we can't actually
523 change this in the header file before 0.9.9. It allows
524 RSA_setup_blinding() to use BN_with_flags() on the modulus to
525 enable BN_FLG_CONSTTIME.
527 [Matthew D Wood (Intel Corp)]
529 *) In the SSL/TLS server implementation, be strict about session ID
530 context matching (which matters if an application uses a single
531 external cache for different purposes). Previously,
532 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
533 set. This did ensure strict client verification, but meant that,
534 with applications using a single external cache for quite
535 different requirements, clients could circumvent ciphersuite
536 restrictions for a given session ID context by starting a session
537 in a different context.
540 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
541 a ciphersuite string such as "DEFAULT:RSA" cannot enable
542 authentication-only ciphersuites.
545 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
547 *) Since AES128 and AES256 (and similarly Camellia128 and
548 Camellia256) share a single mask bit in the logic of
549 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
550 kludge to work properly if AES128 is available and AES256 isn't
551 (or if Camellia128 is available and Camellia256 isn't).
554 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
555 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
556 When a point or a seed is encoded in a BIT STRING, we need to
557 prevent the removal of trailing zero bits to get the proper DER
558 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
559 of a NamedBitList, for which trailing 0 bits need to be removed.)
562 *) Have SSL/TLS server implementation tolerate "mismatched" record
563 protocol version while receiving ClientHello even if the
564 ClientHello is fragmented. (The server can't insist on the
565 particular protocol version it has chosen before the ServerHello
566 message has informed the client about his choice.)
569 *) Add RFC 3779 support.
570 [Rob Austein for ARIN, Ben Laurie]
572 *) Load error codes if they are not already present instead of using a
573 static variable. This allows them to be cleanly unloaded and reloaded.
574 Improve header file function name parsing.
577 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
578 or CAPABILITY handshake as required by RFCs.
581 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
583 *) Introduce limits to prevent malicious keys being able to
584 cause a denial of service. (CVE-2006-2940)
585 [Steve Henson, Bodo Moeller]
587 *) Fix ASN.1 parsing of certain invalid structures that can result
588 in a denial of service. (CVE-2006-2937) [Steve Henson]
590 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
591 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
593 *) Fix SSL client code which could crash if connecting to a
594 malicious SSLv2 server. (CVE-2006-4343)
595 [Tavis Ormandy and Will Drewry, Google Security Team]
597 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
598 match only those. Before that, "AES256-SHA" would be interpreted
599 as a pattern and match "AES128-SHA" too (since AES128-SHA got
600 the same strength classification in 0.9.7h) as we currently only
601 have a single AES bit in the ciphersuite description bitmap.
602 That change, however, also applied to ciphersuite strings such as
603 "RC4-MD5" that intentionally matched multiple ciphersuites --
604 namely, SSL 2.0 ciphersuites in addition to the more common ones
605 from SSL 3.0/TLS 1.0.
607 So we change the selection algorithm again: Naming an explicit
608 ciphersuite selects this one ciphersuite, and any other similar
609 ciphersuite (same bitmap) from *other* protocol versions.
610 Thus, "RC4-MD5" again will properly select both the SSL 2.0
611 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
613 Since SSL 2.0 does not have any ciphersuites for which the
614 128/256 bit distinction would be relevant, this works for now.
615 The proper fix will be to use different bits for AES128 and
616 AES256, which would have avoided the problems from the beginning;
617 however, bits are scarce, so we can only do this in a new release
618 (not just a patchlevel) when we can change the SSL_CIPHER
619 definition to split the single 'unsigned long mask' bitmap into
620 multiple values to extend the available space.
624 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
626 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
627 (CVE-2006-4339) [Ben Laurie and Google Security Team]
629 *) Add AES IGE and biIGE modes.
632 *) Change the Unix randomness entropy gathering to use poll() when
633 possible instead of select(), since the latter has some
634 undesirable limitations.
635 [Darryl Miles via Richard Levitte and Bodo Moeller]
637 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
638 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
639 cannot be implicitly activated as part of, e.g., the "AES" alias.
640 However, please upgrade to OpenSSL 0.9.9[-dev] for
641 non-experimental use of the ECC ciphersuites to get TLS extension
642 support, which is required for curve and point format negotiation
643 to avoid potential handshake problems.
646 *) Disable rogue ciphersuites:
648 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
649 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
650 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
652 The latter two were purportedly from
653 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
656 Also deactivate the remaining ciphersuites from
657 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
658 unofficial, and the ID has long expired.
661 *) Fix RSA blinding Heisenbug (problems sometimes occured on
662 dual-core machines) and other potential thread-safety issues.
665 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
666 versions), which is now available for royalty-free use
667 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
668 Also, add Camellia TLS ciphersuites from RFC 4132.
670 To minimize changes between patchlevels in the OpenSSL 0.9.8
671 series, Camellia remains excluded from compilation unless OpenSSL
672 is configured with 'enable-camellia'.
675 *) Disable the padding bug check when compression is in use. The padding
676 bug check assumes the first packet is of even length, this is not
677 necessarily true if compresssion is enabled and can result in false
678 positives causing handshake failure. The actual bug test is ancient
679 code so it is hoped that implementations will either have fixed it by
680 now or any which still have the bug do not support compression.
683 Changes between 0.9.8a and 0.9.8b [04 May 2006]
685 *) When applying a cipher rule check to see if string match is an explicit
686 cipher suite and only match that one cipher suite if it is.
689 *) Link in manifests for VC++ if needed.
690 [Austin Ziegler <halostatue@gmail.com>]
692 *) Update support for ECC-based TLS ciphersuites according to
693 draft-ietf-tls-ecc-12.txt with proposed changes (but without
694 TLS extensions, which are supported starting with the 0.9.9
695 branch, not in the OpenSSL 0.9.8 branch).
698 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
699 opaque EVP_CIPHER_CTX handling.
702 *) Fixes and enhancements to zlib compression code. We now only use
703 "zlib1.dll" and use the default __cdecl calling convention on Win32
704 to conform with the standards mentioned here:
705 http://www.zlib.net/DLL_FAQ.txt
706 Static zlib linking now works on Windows and the new --with-zlib-include
707 --with-zlib-lib options to Configure can be used to supply the location
708 of the headers and library. Gracefully handle case where zlib library
712 *) Several fixes and enhancements to the OID generation code. The old code
713 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
714 handle numbers larger than ULONG_MAX, truncated printing and had a
715 non standard OBJ_obj2txt() behaviour.
718 *) Add support for building of engines under engine/ as shared libraries
719 under VC++ build system.
722 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
723 Hopefully, we will not see any false combination of paths any more.
726 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
728 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
729 (part of SSL_OP_ALL). This option used to disable the
730 countermeasure against man-in-the-middle protocol-version
731 rollback in the SSL 2.0 server implementation, which is a bad
732 idea. (CVE-2005-2969)
734 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
735 for Information Security, National Institute of Advanced Industrial
736 Science and Technology [AIST], Japan)]
738 *) Add two function to clear and return the verify parameter flags.
741 *) Keep cipherlists sorted in the source instead of sorting them at
742 runtime, thus removing the need for a lock.
745 *) Avoid some small subgroup attacks in Diffie-Hellman.
746 [Nick Mathewson and Ben Laurie]
748 *) Add functions for well-known primes.
751 *) Extended Windows CE support.
752 [Satoshi Nakamura and Andy Polyakov]
754 *) Initialize SSL_METHOD structures at compile time instead of during
755 runtime, thus removing the need for a lock.
758 *) Make PKCS7_decrypt() work even if no certificate is supplied by
759 attempting to decrypt each encrypted key in turn. Add support to
763 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
765 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
768 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
771 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
772 key into the same file any more.
775 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
778 *) Add -utf8 command line and config file option to 'ca'.
779 [Stefan <stf@udoma.org]
781 *) Removed the macro des_crypt(), as it seems to conflict with some
782 libraries. Use DES_crypt().
785 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
786 involves renaming the source and generated shared-libs for
787 both. The engines will accept the corrected or legacy ids
788 ('ncipher' and '4758_cca' respectively) when binding. NB,
789 this only applies when building 'shared'.
790 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
792 *) Add attribute functions to EVP_PKEY structure. Modify
793 PKCS12_create() to recognize a CSP name attribute and
794 use it. Make -CSP option work again in pkcs12 utility.
797 *) Add new functionality to the bn blinding code:
798 - automatic re-creation of the BN_BLINDING parameters after
799 a fixed number of uses (currently 32)
800 - add new function for parameter creation
801 - introduce flags to control the update behaviour of the
802 BN_BLINDING parameters
803 - hide BN_BLINDING structure
804 Add a second BN_BLINDING slot to the RSA structure to improve
805 performance when a single RSA object is shared among several
809 *) Add support for DTLS.
810 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
812 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
813 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
816 *) Remove buggy and incompletet DH cert support from
817 ssl/ssl_rsa.c and ssl/s3_both.c
820 *) Use SHA-1 instead of MD5 as the default digest algorithm for
821 the apps/openssl applications.
824 *) Compile clean with "-Wall -Wmissing-prototypes
825 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
826 DEBUG_SAFESTACK must also be set.
829 *) Change ./Configure so that certain algorithms can be disabled by default.
830 The new counterpiece to "no-xxx" is "enable-xxx".
832 The patented RC5 and MDC2 algorithms will now be disabled unless
833 "enable-rc5" and "enable-mdc2", respectively, are specified.
835 (IDEA remains enabled despite being patented. This is because IDEA
836 is frequently required for interoperability, and there is no license
837 fee for non-commercial use. As before, "no-idea" can be used to
838 avoid this algorithm.)
842 *) Add processing of proxy certificates (see RFC 3820). This work was
843 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
844 EGEE (Enabling Grids for E-science in Europe).
847 *) RC4 performance overhaul on modern architectures/implementations, such
848 as Intel P4, IA-64 and AMD64.
851 *) New utility extract-section.pl. This can be used specify an alternative
852 section number in a pod file instead of having to treat each file as
853 a separate case in Makefile. This can be done by adding two lines to the
856 =for comment openssl_section:XXX
858 The blank line is mandatory.
862 *) New arguments -certform, -keyform and -pass for s_client and s_server
863 to allow alternative format key and certificate files and passphrase
867 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
868 update associated structures and add various utility functions.
870 Add new policy related verify parameters, include policy checking in
871 standard verify code. Enhance 'smime' application with extra parameters
872 to support policy checking and print out.
875 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
876 Nehemiah processors. These extensions support AES encryption in hardware
877 as well as RNG (though RNG support is currently disabled).
878 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
880 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
883 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
884 [Andy Polyakov and a number of other people]
886 *) Improved PowerPC platform support. Most notably BIGNUM assembler
887 implementation contributed by IBM.
888 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
890 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
891 exponent rather than 'unsigned long'. There is a corresponding change to
892 the new 'rsa_keygen' element of the RSA_METHOD structure.
893 [Jelte Jansen, Geoff Thorpe]
895 *) Functionality for creating the initial serial number file is now
896 moved from CA.pl to the 'ca' utility with a new option -create_serial.
898 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
899 number file to 1, which is bound to cause problems. To avoid
900 the problems while respecting compatibility between different 0.9.7
901 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
902 CA.pl for serial number initialization. With the new release 0.9.8,
903 we can fix the problem directly in the 'ca' utility.)
906 *) Reduced header interdepencies by declaring more opaque objects in
907 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
908 give fewer recursive includes, which could break lazy source code - so
909 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
910 developers should define this symbol when building and using openssl to
911 ensure they track the recommended behaviour, interfaces, [etc], but
912 backwards-compatible behaviour prevails when this isn't defined.
915 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
918 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
919 This will generate a random key of the appropriate length based on the
920 cipher context. The EVP_CIPHER can provide its own random key generation
921 routine to support keys of a specific form. This is used in the des and
922 3des routines to generate a key of the correct parity. Update S/MIME
923 code to use new functions and hence generate correct parity DES keys.
924 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
925 valid (weak or incorrect parity).
928 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
929 as looking them up. This is useful when the verified structure may contain
930 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
931 present unless the new PKCS7_NO_CRL flag is asserted.
934 *) Extend ASN1 oid configuration module. It now additionally accepts the
937 shortName = some long name, 1.2.3.4
940 *) Reimplemented the BN_CTX implementation. There is now no more static
941 limitation on the number of variables it can handle nor the depth of the
942 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
943 information can now expand as required, and rather than having a single
944 static array of bignums, BN_CTX now uses a linked-list of such arrays
945 allowing it to expand on demand whilst maintaining the usefulness of
949 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
950 to allow all RSA operations to function using a single BN_CTX.
953 *) Preliminary support for certificate policy evaluation and checking. This
954 is initially intended to pass the tests outlined in "Conformance Testing
955 of Relying Party Client Certificate Path Processing Logic" v1.07.
958 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
959 remained unused and not that useful. A variety of other little bignum
960 tweaks and fixes have also been made continuing on from the audit (see
964 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
965 associated ASN1, EVP and SSL functions and old ASN1 macros.
968 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
969 and this should never fail. So the return value from the use of
970 BN_set_word() (which can fail due to needless expansion) is now deprecated;
971 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
974 *) BN_CTX_get() should return zero-valued bignums, providing the same
975 initialised value as BN_new().
976 [Geoff Thorpe, suggested by Ulf Möller]
978 *) Support for inhibitAnyPolicy certificate extension.
981 *) An audit of the BIGNUM code is underway, for which debugging code is
982 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
983 is considered valid when processing BIGNUMs, and causes execution to
984 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
985 further steps are taken to deliberately pollute unused data in BIGNUM
986 structures to try and expose faulty code further on. For now, openssl will
987 (in its default mode of operation) continue to tolerate the inconsistent
988 forms that it has tolerated in the past, but authors and packagers should
989 consider trying openssl and their own applications when compiled with
990 these debugging symbols defined. It will help highlight potential bugs in
991 their own code, and will improve the test coverage for OpenSSL itself. At
992 some point, these tighter rules will become openssl's default to improve
993 maintainability, though the assert()s and other overheads will remain only
994 in debugging configurations. See bn.h for more details.
995 [Geoff Thorpe, Nils Larsch, Ulf Möller]
997 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
998 that can only be obtained through BN_CTX_new() (which implicitly
999 initialises it). The presence of this function only made it possible
1000 to overwrite an existing structure (and cause memory leaks).
1003 *) Because of the callback-based approach for implementing LHASH as a
1004 template type, lh_insert() adds opaque objects to hash-tables and
1005 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1006 to clean up those corresponding objects before destroying the hash table
1007 (and losing the object pointers). So some over-zealous constifications in
1008 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1009 objects as "const" and the lh_doall[_arg] callback wrappers are not
1010 prototyped to have "const" restrictions on the object pointers they are
1011 given (and so aren't required to cast them away any more).
1014 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1015 (speed) prefers to use its own implementation. The two implementations
1016 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1017 its object type properly exposed (MS_TM) instead of casting to/from "char
1018 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1019 aren't necessarily the greatest nomenclatures - but this is what was used
1020 internally to the implementation so I've used that for now.
1023 *) Ensure that deprecated functions do not get compiled when
1024 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1025 the self-tests were still using deprecated key-generation functions so
1026 these have been updated also.
1029 *) Reorganise PKCS#7 code to separate the digest location functionality
1030 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1031 New function PKCS7_set_digest() to set the digest type for PKCS#7
1032 digestedData type. Add additional code to correctly generate the
1033 digestedData type and add support for this type in PKCS7 initialization
1037 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1038 structure of type "other".
1041 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1042 sure the loop does correctly stop and breaking ("division by zero")
1043 modulus operations are not performed. The (pre-generated) prime
1044 table crypto/bn/bn_prime.h was already correct, but it could not be
1045 re-generated on some platforms because of the "division by zero"
1046 situation in the script.
1047 [Ralf S. Engelschall]
1049 *) Update support for ECC-based TLS ciphersuites according to
1050 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1051 SHA-1 now is only used for "small" curves (where the
1052 representation of a field element takes up to 24 bytes); for
1053 larger curves, the field element resulting from ECDH is directly
1054 used as premaster secret.
1055 [Douglas Stebila (Sun Microsystems Laboratories)]
1057 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1058 curve secp160r1 to the tests.
1059 [Douglas Stebila (Sun Microsystems Laboratories)]
1061 *) Add the possibility to load symbols globally with DSO.
1062 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1064 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1065 control of the error stack.
1068 *) Add support for STORE in ENGINE.
1071 *) Add the STORE type. The intention is to provide a common interface
1072 to certificate and key stores, be they simple file-based stores, or
1073 HSM-type store, or LDAP stores, or...
1074 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1077 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1078 pass a list of arguments to any function as well as provide a way
1079 for a function to pass data back to the caller.
1082 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1083 works like BUF_strdup() but can be used to duplicate a portion of
1084 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1088 *) Add the function sk_find_ex() which works like sk_find(), but will
1089 return an index to an element even if an exact match couldn't be
1090 found. The index is guaranteed to point at the element where the
1091 searched-for key would be inserted to preserve sorting order.
1094 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1095 takes an extra flags argument for optional functionality. Currently,
1096 the following flags are defined:
1098 OBJ_BSEARCH_VALUE_ON_NOMATCH
1099 This one gets OBJ_bsearch_ex() to return a pointer to the first
1100 element where the comparing function returns a negative or zero
1103 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1104 This one gets OBJ_bsearch_ex() to return a pointer to the first
1105 element where the comparing function returns zero. This is useful
1106 if there are more than one element where the comparing function
1110 *) Make it possible to create self-signed certificates with 'openssl ca'
1111 in such a way that the self-signed certificate becomes part of the
1112 CA database and uses the same mechanisms for serial number generation
1113 as all other certificate signing. The new flag '-selfsign' enables
1114 this functionality. Adapt CA.sh and CA.pl.in.
1117 *) Add functionality to check the public key of a certificate request
1118 against a given private. This is useful to check that a certificate
1119 request can be signed by that key (self-signing).
1122 *) Make it possible to have multiple active certificates with the same
1123 subject in the CA index file. This is done only if the keyword
1124 'unique_subject' is set to 'no' in the main CA section (default
1125 if 'CA_default') of the configuration file. The value is saved
1126 with the database itself in a separate index attribute file,
1127 named like the index file with '.attr' appended to the name.
1130 *) Generate muti valued AVAs using '+' notation in config files for
1134 *) Support for nameConstraints certificate extension.
1137 *) Support for policyConstraints certificate extension.
1140 *) Support for policyMappings certificate extension.
1143 *) Make sure the default DSA_METHOD implementation only uses its
1144 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1145 and change its own handlers to be NULL so as to remove unnecessary
1146 indirection. This lets alternative implementations fallback to the
1147 default implementation more easily.
1150 *) Support for directoryName in GeneralName related extensions
1154 *) Make it possible to link applications using Makefile.shared.
1155 Make that possible even when linking against static libraries!
1158 *) Support for single pass processing for S/MIME signing. This now
1159 means that S/MIME signing can be done from a pipe, in addition
1160 cleartext signing (multipart/signed type) is effectively streaming
1161 and the signed data does not need to be all held in memory.
1163 This is done with a new flag PKCS7_STREAM. When this flag is set
1164 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1165 is done after the data is output (and digests calculated) in
1166 SMIME_write_PKCS7().
1169 *) Add full support for -rpath/-R, both in shared libraries and
1170 applications, at least on the platforms where it's known how
1174 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1175 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1176 will now compute a table of multiples of the generator that
1177 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1178 faster (notably in the case of a single point multiplication,
1179 scalar * generator).
1180 [Nils Larsch, Bodo Moeller]
1182 *) IPv6 support for certificate extensions. The various extensions
1183 which use the IP:a.b.c.d can now take IPv6 addresses using the
1184 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1188 *) Added an ENGINE that implements RSA by performing private key
1189 exponentiations with the GMP library. The conversions to and from
1190 GMP's mpz_t format aren't optimised nor are any montgomery forms
1191 cached, and on x86 it appears OpenSSL's own performance has caught up.
1192 However there are likely to be other architectures where GMP could
1193 provide a boost. This ENGINE is not built in by default, but it can be
1194 specified at Configure time and should be accompanied by the necessary
1195 linker additions, eg;
1196 ./config -DOPENSSL_USE_GMP -lgmp
1199 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1200 testing availability of engines with "-t" - the old behaviour is
1201 produced by increasing the feature's verbosity with "-tt".
1204 *) ECDSA routines: under certain error conditions uninitialized BN objects
1205 could be freed. Solution: make sure initialization is performed early
1206 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1210 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1211 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1212 software implementations. For DSA and DH, parameter generation can
1213 also be overriden by providing the appropriate method callbacks.
1216 *) Change the "progress" mechanism used in key-generation and
1217 primality testing to functions that take a new BN_GENCB pointer in
1218 place of callback/argument pairs. The new API functions have "_ex"
1219 postfixes and the older functions are reimplemented as wrappers for
1220 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1221 declarations of the old functions to help (graceful) attempts to
1222 migrate to the new functions. Also, the new key-generation API
1223 functions operate on a caller-supplied key-structure and return
1224 success/failure rather than returning a key or NULL - this is to
1225 help make "keygen" another member function of RSA_METHOD etc.
1227 Example for using the new callback interface:
1229 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1233 BN_GENCB_set(&my_cb, my_callback, my_arg);
1235 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1236 /* For the meaning of a, b in calls to my_callback(), see the
1237 * documentation of the function that calls the callback.
1238 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1239 * my_callback should return 1 if it wants BN_is_prime_ex()
1240 * to continue, or 0 to stop.
1245 *) Change the ZLIB compression method to be stateful, and make it
1246 available to TLS with the number defined in
1247 draft-ietf-tls-compression-04.txt.
1250 *) Add the ASN.1 structures and functions for CertificatePair, which
1251 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1253 CertificatePair ::= SEQUENCE {
1254 forward [0] Certificate OPTIONAL,
1255 reverse [1] Certificate OPTIONAL,
1256 -- at least one of the pair shall be present -- }
1258 Also implement the PEM functions to read and write certificate
1259 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1261 This needed to be defined, mostly for the sake of the LDAP
1262 attribute crossCertificatePair, but may prove useful elsewhere as
1266 *) Make it possible to inhibit symlinking of shared libraries in
1267 Makefile.shared, for Cygwin's sake.
1270 *) Extend the BIGNUM API by creating a function
1271 void BN_set_negative(BIGNUM *a, int neg);
1272 and a macro that behave like
1273 int BN_is_negative(const BIGNUM *a);
1275 to avoid the need to access 'a->neg' directly in applications.
1278 *) Implement fast modular reduction for pseudo-Mersenne primes
1279 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1280 EC_GROUP_new_curve_GFp() will now automatically use this
1282 [Nils Larsch <nla@trustcenter.de>]
1284 *) Add new lock type (CRYPTO_LOCK_BN).
1287 *) Change the ENGINE framework to automatically load engines
1288 dynamically from specific directories unless they could be
1289 found to already be built in or loaded. Move all the
1290 current engines except for the cryptodev one to a new
1292 The engines in engines/ are built as shared libraries if
1293 the "shared" options was given to ./Configure or ./config.
1294 Otherwise, they are inserted in libcrypto.a.
1295 /usr/local/ssl/engines is the default directory for dynamic
1296 engines, but that can be overriden at configure time through
1297 the usual use of --prefix and/or --openssldir, and at run
1298 time with the environment variable OPENSSL_ENGINES.
1299 [Geoff Thorpe and Richard Levitte]
1301 *) Add Makefile.shared, a helper makefile to build shared
1302 libraries. Addapt Makefile.org.
1305 *) Add version info to Win32 DLLs.
1306 [Peter 'Luna' Runestig" <peter@runestig.com>]
1308 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1309 can be added using this API to created arbitrary PKCS#12
1310 files while avoiding the low level API.
1312 New options to PKCS12_create(), key or cert can be NULL and
1313 will then be omitted from the output file. The encryption
1314 algorithm NIDs can be set to -1 for no encryption, the mac
1315 iteration count can be set to 0 to omit the mac.
1317 Enhance pkcs12 utility by making the -nokeys and -nocerts
1318 options work when creating a PKCS#12 file. New option -nomac
1319 to omit the mac, NONE can be set for an encryption algorithm.
1320 New code is modified to use the enhanced PKCS12_create()
1321 instead of the low level API.
1324 *) Extend ASN1 encoder to support indefinite length constructed
1325 encoding. This can output sequences tags and octet strings in
1326 this form. Modify pk7_asn1.c to support indefinite length
1327 encoding. This is experimental and needs additional code to
1328 be useful, such as an ASN1 bio and some enhanced streaming
1331 Extend template encode functionality so that tagging is passed
1332 down to the template encoder.
1335 *) Let 'openssl req' fail if an argument to '-newkey' is not
1336 recognized instead of using RSA as a default.
1339 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1340 As these are not official, they are not included in "ALL";
1341 the "ECCdraft" ciphersuite group alias can be used to select them.
1342 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1344 *) Add ECDH engine support.
1345 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1347 *) Add ECDH in new directory crypto/ecdh/.
1348 [Douglas Stebila (Sun Microsystems Laboratories)]
1350 *) Let BN_rand_range() abort with an error after 100 iterations
1351 without success (which indicates a broken PRNG).
1354 *) Change BN_mod_sqrt() so that it verifies that the input value
1355 is really the square of the return value. (Previously,
1356 BN_mod_sqrt would show GIGO behaviour.)
1359 *) Add named elliptic curves over binary fields from X9.62, SECG,
1360 and WAP/WTLS; add OIDs that were still missing.
1362 [Sheueling Chang Shantz and Douglas Stebila
1363 (Sun Microsystems Laboratories)]
1365 *) Extend the EC library for elliptic curves over binary fields
1366 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1369 EC_GF2m_simple_method
1373 EC_GROUP_new_curve_GF2m
1374 EC_GROUP_set_curve_GF2m
1375 EC_GROUP_get_curve_GF2m
1376 EC_POINT_set_affine_coordinates_GF2m
1377 EC_POINT_get_affine_coordinates_GF2m
1378 EC_POINT_set_compressed_coordinates_GF2m
1380 Point compression for binary fields is disabled by default for
1381 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1384 As binary polynomials are represented as BIGNUMs, various members
1385 of the EC_GROUP and EC_POINT data structures can be shared
1386 between the implementations for prime fields and binary fields;
1387 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1388 are essentially identical to their ..._GFp counterparts.
1389 (For simplicity, the '..._GFp' prefix has been dropped from
1390 various internal method names.)
1392 An internal 'field_div' method (similar to 'field_mul' and
1393 'field_sqr') has been added; this is used only for binary fields.
1395 [Sheueling Chang Shantz and Douglas Stebila
1396 (Sun Microsystems Laboratories)]
1398 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1399 through methods ('mul', 'precompute_mult').
1401 The generic implementations (now internally called 'ec_wNAF_mul'
1402 and 'ec_wNAF_precomputed_mult') remain the default if these
1403 methods are undefined.
1405 [Sheueling Chang Shantz and Douglas Stebila
1406 (Sun Microsystems Laboratories)]
1408 *) New function EC_GROUP_get_degree, which is defined through
1409 EC_METHOD. For curves over prime fields, this returns the bit
1410 length of the modulus.
1412 [Sheueling Chang Shantz and Douglas Stebila
1413 (Sun Microsystems Laboratories)]
1415 *) New functions EC_GROUP_dup, EC_POINT_dup.
1416 (These simply call ..._new and ..._copy).
1418 [Sheueling Chang Shantz and Douglas Stebila
1419 (Sun Microsystems Laboratories)]
1421 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1422 Polynomials are represented as BIGNUMs (where the sign bit is not
1423 used) in the following functions [macros]:
1426 BN_GF2m_sub [= BN_GF2m_add]
1427 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1428 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1429 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1431 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1432 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1433 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1434 BN_GF2m_cmp [= BN_ucmp]
1436 (Note that only the 'mod' functions are actually for fields GF(2^m).
1437 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1439 For some functions, an the irreducible polynomial defining a
1440 field can be given as an 'unsigned int[]' with strictly
1441 decreasing elements giving the indices of those bits that are set;
1442 i.e., p[] represents the polynomial
1443 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1445 p[0] > p[1] > ... > p[k] = 0.
1446 This applies to the following functions:
1451 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1452 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1454 BN_GF2m_mod_sqrt_arr
1455 BN_GF2m_mod_solve_quad_arr
1459 Conversion can be performed by the following functions:
1464 bntest.c has additional tests for binary polynomial arithmetic.
1466 Two implementations for BN_GF2m_mod_div() are available.
1467 The default algorithm simply uses BN_GF2m_mod_inv() and
1468 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1469 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1470 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1472 [Sheueling Chang Shantz and Douglas Stebila
1473 (Sun Microsystems Laboratories)]
1475 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1476 functionality is disabled at compile-time.
1477 [Douglas Stebila <douglas.stebila@sun.com>]
1479 *) Change default behaviour of 'openssl asn1parse' so that more
1480 information is visible when viewing, e.g., a certificate:
1482 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1483 mode the content of non-printable OCTET STRINGs is output in a
1484 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1485 avoid the appearance of a printable string.
1486 [Nils Larsch <nla@trustcenter.de>]
1488 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1490 EC_GROUP_set_asn1_flag()
1491 EC_GROUP_get_asn1_flag()
1492 EC_GROUP_set_point_conversion_form()
1493 EC_GROUP_get_point_conversion_form()
1494 These control ASN1 encoding details:
1495 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1496 has been set to OPENSSL_EC_NAMED_CURVE.
1497 - Points are encoded in uncompressed form by default; options for
1498 asn1_for are as for point2oct, namely
1499 POINT_CONVERSION_COMPRESSED
1500 POINT_CONVERSION_UNCOMPRESSED
1501 POINT_CONVERSION_HYBRID
1503 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1506 EC_GROUP_get0_seed()
1507 EC_GROUP_get_seed_len()
1508 This is used only for ASN1 purposes (so far).
1509 [Nils Larsch <nla@trustcenter.de>]
1511 *) Add 'field_type' member to EC_METHOD, which holds the NID
1512 of the appropriate field type OID. The new function
1513 EC_METHOD_get_field_type() returns this value.
1514 [Nils Larsch <nla@trustcenter.de>]
1519 EC_POINT_point2hex()
1520 EC_POINT_hex2point()
1521 providing useful interfaces to EC_POINT_point2oct() and
1522 EC_POINT_oct2point().
1523 [Nils Larsch <nla@trustcenter.de>]
1525 *) Change internals of the EC library so that the functions
1526 EC_GROUP_set_generator()
1527 EC_GROUP_get_generator()
1528 EC_GROUP_get_order()
1529 EC_GROUP_get_cofactor()
1530 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1531 to methods, which would lead to unnecessary code duplication when
1532 adding different types of curves.
1533 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1535 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1536 arithmetic, and such that modified wNAFs are generated
1537 (which avoid length expansion in many cases).
1540 *) Add a function EC_GROUP_check_discriminant() (defined via
1541 EC_METHOD) that verifies that the curve discriminant is non-zero.
1543 Add a function EC_GROUP_check() that makes some sanity tests
1544 on a EC_GROUP, its generator and order. This includes
1545 EC_GROUP_check_discriminant().
1546 [Nils Larsch <nla@trustcenter.de>]
1548 *) Add ECDSA in new directory crypto/ecdsa/.
1550 Add applications 'openssl ecparam' and 'openssl ecdsa'
1551 (these are based on 'openssl dsaparam' and 'openssl dsa').
1553 ECDSA support is also included in various other files across the
1554 library. Most notably,
1555 - 'openssl req' now has a '-newkey ecdsa:file' option;
1556 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1557 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1558 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1559 them suitable for ECDSA where domain parameters must be
1560 extracted before the specific public key;
1561 - ECDSA engine support has been added.
1562 [Nils Larsch <nla@trustcenter.de>]
1564 *) Include some named elliptic curves, and add OIDs from X9.62,
1565 SECG, and WAP/WTLS. Each curve can be obtained from the new
1567 EC_GROUP_new_by_curve_name(),
1568 and the list of available named curves can be obtained with
1569 EC_get_builtin_curves().
1570 Also add a 'curve_name' member to EC_GROUP objects, which can be
1572 EC_GROUP_set_curve_name()
1573 EC_GROUP_get_curve_name()
1574 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1576 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1577 was actually never needed) and in BN_mul(). The removal in BN_mul()
1578 required a small change in bn_mul_part_recursive() and the addition
1579 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1580 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1581 bn_sub_words() and bn_add_words() except they take arrays with
1585 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1587 *) In the SSL/TLS server implementation, be strict about session ID
1588 context matching (which matters if an application uses a single
1589 external cache for different purposes). Previously,
1590 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1591 set. This did ensure strict client verification, but meant that,
1592 with applications using a single external cache for quite
1593 different requirements, clients could circumvent ciphersuite
1594 restrictions for a given session ID context by starting a session
1595 in a different context.
1598 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1600 *) Cleanse PEM buffers before freeing them since they may contain
1602 [Benjamin Bennett <ben@psc.edu>]
1604 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1605 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1606 authentication-only ciphersuites.
1609 *) Since AES128 and AES256 share a single mask bit in the logic of
1610 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1611 kludge to work properly if AES128 is available and AES256 isn't.
1614 *) Expand security boundary to match 1.1.1 module.
1617 *) Remove redundant features: hash file source, editing of test vectors
1618 modify fipsld to use external fips_premain.c signature.
1621 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1622 run algorithm test programs.
1625 *) Make algorithm test programs more tolerant of whitespace.
1628 *) Have SSL/TLS server implementation tolerate "mismatched" record
1629 protocol version while receiving ClientHello even if the
1630 ClientHello is fragmented. (The server can't insist on the
1631 particular protocol version it has chosen before the ServerHello
1632 message has informed the client about his choice.)
1635 *) Load error codes if they are not already present instead of using a
1636 static variable. This allows them to be cleanly unloaded and reloaded.
1639 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1641 *) Introduce limits to prevent malicious keys being able to
1642 cause a denial of service. (CVE-2006-2940)
1643 [Steve Henson, Bodo Moeller]
1645 *) Fix ASN.1 parsing of certain invalid structures that can result
1646 in a denial of service. (CVE-2006-2937) [Steve Henson]
1648 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1649 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1651 *) Fix SSL client code which could crash if connecting to a
1652 malicious SSLv2 server. (CVE-2006-4343)
1653 [Tavis Ormandy and Will Drewry, Google Security Team]
1655 *) Change ciphersuite string processing so that an explicit
1656 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1657 will no longer include "AES128-SHA"), and any other similar
1658 ciphersuite (same bitmap) from *other* protocol versions (so that
1659 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1660 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1661 changes from 0.9.8b and 0.9.8d.
1664 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1666 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1667 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1669 *) Change the Unix randomness entropy gathering to use poll() when
1670 possible instead of select(), since the latter has some
1671 undesirable limitations.
1672 [Darryl Miles via Richard Levitte and Bodo Moeller]
1674 *) Disable rogue ciphersuites:
1676 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1677 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1678 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1680 The latter two were purportedly from
1681 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1684 Also deactive the remaining ciphersuites from
1685 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1686 unofficial, and the ID has long expired.
1689 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1690 dual-core machines) and other potential thread-safety issues.
1693 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1695 *) Adapt fipsld and the build system to link against the validated FIPS
1696 module in FIPS mode.
1699 *) Fixes for VC++ 2005 build under Windows.
1702 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1703 from a Windows bash shell such as MSYS. It is autodetected from the
1704 "config" script when run from a VC++ environment. Modify standard VC++
1705 build to use fipscanister.o from the GNU make build.
1708 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1710 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1711 The value now differs depending on if you build for FIPS or not.
1712 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1713 safely run with a non-FIPSed libcrypto, as it may crash because of
1714 the difference induced by this change.
1717 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1719 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1720 (part of SSL_OP_ALL). This option used to disable the
1721 countermeasure against man-in-the-middle protocol-version
1722 rollback in the SSL 2.0 server implementation, which is a bad
1723 idea. (CVE-2005-2969)
1725 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1726 for Information Security, National Institute of Advanced Industrial
1727 Science and Technology [AIST], Japan)]
1729 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1730 mainly for FIPS compliance and not fully integrated at this stage.
1733 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1734 the exponentiation using a fixed-length exponent. (Otherwise,
1735 the information leaked through timing could expose the secret key
1736 after many signatures; cf. Bleichenbacher's attack on DSA with
1740 *) Make a new fixed-window mod_exp implementation the default for
1741 RSA, DSA, and DH private-key operations so that the sequence of
1742 squares and multiplies and the memory access pattern are
1743 independent of the particular secret key. This will mitigate
1744 cache-timing and potential related attacks.
1746 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1747 and this is automatically used by BN_mod_exp_mont() if the new flag
1748 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1749 will use this BN flag for private exponents unless the flag
1750 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1751 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1753 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1755 *) Change the client implementation for SSLv23_method() and
1756 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1757 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1758 (Previously, the SSL 2.0 backwards compatible Client Hello
1759 message format would be used even with SSL_OP_NO_SSLv2.)
1762 *) Add support for smime-type MIME parameter in S/MIME messages which some
1766 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1767 a threadsafe manner. Modify rsa code to use new function and add calls
1768 to dsa and dh code (which had race conditions before).
1771 *) Include the fixed error library code in the C error file definitions
1772 instead of fixing them up at runtime. This keeps the error code
1773 structures constant.
1776 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1778 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1781 *) Fixes for newer kerberos headers. NB: the casts are needed because
1782 the 'length' field is signed on one version and unsigned on another
1783 with no (?) obvious way to tell the difference, without these VC++
1784 complains. Also the "definition" of FAR (blank) is no longer included
1785 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1786 some needed definitions.
1789 *) Undo Cygwin change.
1792 *) Added support for proxy certificates according to RFC 3820.
1793 Because they may be a security thread to unaware applications,
1794 they must be explicitely allowed in run-time. See
1795 docs/HOWTO/proxy_certificates.txt for further information.
1798 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1800 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1801 server and client random values. Previously
1802 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1803 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1805 This change has negligible security impact because:
1807 1. Server and client random values still have 24 bytes of pseudo random
1810 2. Server and client random values are sent in the clear in the initial
1813 3. The master secret is derived using the premaster secret (48 bytes in
1814 size for static RSA ciphersuites) as well as client server and random
1817 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1820 [Stephen Henson, reported by UK NISCC]
1822 *) Use Windows randomness collection on Cygwin.
1825 *) Fix hang in EGD/PRNGD query when communication socket is closed
1826 prematurely by EGD/PRNGD.
1827 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1829 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1832 *) Back-port of selected performance improvements from development
1833 branch, as well as improved support for PowerPC platforms.
1836 *) Add lots of checks for memory allocation failure, error codes to indicate
1837 failure and freeing up memory if a failure occurs.
1838 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1840 *) Add new -passin argument to dgst.
1843 *) Perform some character comparisons of different types in X509_NAME_cmp:
1844 this is needed for some certificates that reencode DNs into UTF8Strings
1845 (in violation of RFC3280) and can't or wont issue name rollover
1849 *) Make an explicit check during certificate validation to see that
1850 the CA setting in each certificate on the chain is correct. As a
1851 side effect always do the following basic checks on extensions,
1852 not just when there's an associated purpose to the check:
1854 - if there is an unhandled critical extension (unless the user
1855 has chosen to ignore this fault)
1856 - if the path length has been exceeded (if one is set at all)
1857 - that certain extensions fit the associated purpose (if one has
1861 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1863 *) Avoid a race condition when CRLs are checked in a multi threaded
1864 environment. This would happen due to the reordering of the revoked
1865 entries during signature checking and serial number lookup. Now the
1866 encoding is cached and the serial number sort performed under a lock.
1867 Add new STACK function sk_is_sorted().
1870 *) Add Delta CRL to the extension code.
1873 *) Various fixes to s3_pkt.c so alerts are sent properly.
1874 [David Holmes <d.holmes@f5.com>]
1876 *) Reduce the chances of duplicate issuer name and serial numbers (in
1877 violation of RFC3280) using the OpenSSL certificate creation utilities.
1878 This is done by creating a random 64 bit value for the initial serial
1879 number when a serial number file is created or when a self signed
1880 certificate is created using 'openssl req -x509'. The initial serial
1881 number file is created using 'openssl x509 -next_serial' in CA.pl
1882 rather than being initialized to 1.
1885 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1887 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1888 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1889 [Joe Orton, Steve Henson]
1891 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1893 [Joe Orton, Steve Henson]
1895 *) Make it possible to have multiple active certificates with the same
1896 subject in the CA index file. This is done only if the keyword
1897 'unique_subject' is set to 'no' in the main CA section (default
1898 if 'CA_default') of the configuration file. The value is saved
1899 with the database itself in a separate index attribute file,
1900 named like the index file with '.attr' appended to the name.
1903 *) X509 verify fixes. Disable broken certificate workarounds when
1904 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1905 keyUsage extension present. Don't accept CRLs with unhandled critical
1906 extensions: since verify currently doesn't process CRL extensions this
1907 rejects a CRL with *any* critical extensions. Add new verify error codes
1911 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1912 A clarification of RFC2560 will require the use of OCTET STRINGs and
1913 some implementations cannot handle the current raw format. Since OpenSSL
1914 copies and compares OCSP nonces as opaque blobs without any attempt at
1915 parsing them this should not create any compatibility issues.
1918 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1919 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1920 this HMAC (and other) operations are several times slower than OpenSSL
1924 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1925 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1927 *) Use the correct content when signing type "other".
1930 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1932 *) Fix various bugs revealed by running the NISCC test suite:
1934 Stop out of bounds reads in the ASN1 code when presented with
1935 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1937 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1939 If verify callback ignores invalid public key errors don't try to check
1940 certificate signature with the NULL public key.
1944 *) New -ignore_err option in ocsp application to stop the server
1945 exiting on the first error in a request.
1948 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1949 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1953 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1954 extra data after the compression methods not only for TLS 1.0
1955 but also for SSL 3.0 (as required by the specification).
1956 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1958 *) Change X509_certificate_type() to mark the key as exported/exportable
1959 when it's 512 *bits* long, not 512 bytes.
1962 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1963 blocks during encryption.
1966 *) Various fixes to base64 BIO and non blocking I/O. On write
1967 flushes were not handled properly if the BIO retried. On read
1968 data was not being buffered properly and had various logic bugs.
1969 This also affects blocking I/O when the data being decoded is a
1973 *) Various S/MIME bugfixes and compatibility changes:
1974 output correct application/pkcs7 MIME type if
1975 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1976 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1977 of files as .eml work). Correctly handle very long lines in MIME
1981 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1983 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1984 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1985 a protocol version number mismatch like a decryption error
1986 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1989 *) Turn on RSA blinding by default in the default implementation
1990 to avoid a timing attack. Applications that don't want it can call
1991 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1992 They would be ill-advised to do so in most cases.
1993 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1995 *) Change RSA blinding code so that it works when the PRNG is not
1996 seeded (in this case, the secret RSA exponent is abused as
1997 an unpredictable seed -- if it is not unpredictable, there
1998 is no point in blinding anyway). Make RSA blinding thread-safe
1999 by remembering the creator's thread ID in rsa->blinding and
2000 having all other threads use local one-time blinding factors
2001 (this requires more computation than sharing rsa->blinding, but
2002 avoids excessive locking; and if an RSA object is not shared
2003 between threads, blinding will still be very fast).
2006 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2007 ENGINE as defaults for all supported algorithms irrespective of
2008 the 'flags' parameter. 'flags' is now honoured, so applications
2009 should make sure they are passing it correctly.
2012 *) Target "mingw" now allows native Windows code to be generated in
2013 the Cygwin environment as well as with the MinGW compiler.
2016 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2018 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2019 via timing by performing a MAC computation even if incorrrect
2020 block cipher padding has been found. This is a countermeasure
2021 against active attacks where the attacker has to distinguish
2022 between bad padding and a MAC verification error. (CVE-2003-0078)
2024 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2025 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2026 Martin Vuagnoux (EPFL, Ilion)]
2028 *) Make the no-err option work as intended. The intention with no-err
2029 is not to have the whole error stack handling routines removed from
2030 libcrypto, it's only intended to remove all the function name and
2031 reason texts, thereby removing some of the footprint that may not
2032 be interesting if those errors aren't displayed anyway.
2034 NOTE: it's still possible for any application or module to have it's
2035 own set of error texts inserted. The routines are there, just not
2036 used by default when no-err is given.
2039 *) Add support for FreeBSD on IA64.
2040 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2042 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2043 Kerberos function mit_des_cbc_cksum(). Before this change,
2044 the value returned by DES_cbc_cksum() was like the one from
2045 mit_des_cbc_cksum(), except the bytes were swapped.
2046 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2048 *) Allow an application to disable the automatic SSL chain building.
2049 Before this a rather primitive chain build was always performed in
2050 ssl3_output_cert_chain(): an application had no way to send the
2051 correct chain if the automatic operation produced an incorrect result.
2053 Now the chain builder is disabled if either:
2055 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2057 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2059 The reasoning behind this is that an application would not want the
2060 auto chain building to take place if extra chain certificates are
2061 present and it might also want a means of sending no additional
2062 certificates (for example the chain has two certificates and the
2066 *) Add the possibility to build without the ENGINE framework.
2067 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2069 *) Under Win32 gmtime() can return NULL: check return value in
2070 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2073 *) DSA routines: under certain error conditions uninitialized BN objects
2074 could be freed. Solution: make sure initialization is performed early
2075 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2076 Nils Larsch <nla@trustcenter.de> via PR#459)
2079 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2080 checked on reconnect on the client side, therefore session resumption
2081 could still fail with a "ssl session id is different" error. This
2082 behaviour is masked when SSL_OP_ALL is used due to
2083 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2084 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2085 followup to PR #377.
2088 *) IA-32 assembler support enhancements: unified ELF targets, support
2089 for SCO/Caldera platforms, fix for Cygwin shared build.
2092 *) Add support for FreeBSD on sparc64. As a consequence, support for
2093 FreeBSD on non-x86 processors is separate from x86 processors on
2094 the config script, much like the NetBSD support.
2095 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2097 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2099 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2102 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2103 code (06) was taken as the first octet of the session ID and the last
2104 octet was ignored consequently. As a result SSLv2 client side session
2105 caching could not have worked due to the session ID mismatch between
2107 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2111 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2112 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2116 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2117 seems that in spite of existing for more than a year, many application
2118 author have done nothing to provide the necessary callbacks, which
2119 means that this particular engine will not work properly anywhere.
2120 This is a very unfortunate situation which forces us, in the name
2121 of usability, to give the hw_ncipher.c a static lock, which is part
2123 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2124 appear in 0.9.8 or later. We EXPECT application authors to have
2125 dealt properly with this when 0.9.8 is released (unless we actually
2126 make such changes in the libcrypto locking code that changes will
2127 have to be made anyway).
2130 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2131 octets have been read, EOF or an error occurs. Without this change
2132 some truncated ASN1 structures will not produce an error.
2135 *) Disable Heimdal support, since it hasn't been fully implemented.
2136 Still give the possibility to force the use of Heimdal, but with
2137 warnings and a request that patches get sent to openssl-dev.
2140 *) Add the VC-CE target, introduce the WINCE sysname, and add
2141 INSTALL.WCE and appropriate conditionals to make it build.
2142 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2144 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2145 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2146 edit numbers of the version.
2147 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2149 *) Introduce safe string copy and catenation functions
2150 (BUF_strlcpy() and BUF_strlcat()).
2151 [Ben Laurie (CHATS) and Richard Levitte]
2153 *) Avoid using fixed-size buffers for one-line DNs.
2154 [Ben Laurie (CHATS)]
2156 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2157 resizing buffers containing secrets, and use where appropriate.
2158 [Ben Laurie (CHATS)]
2160 *) Avoid using fixed size buffers for configuration file location.
2161 [Ben Laurie (CHATS)]
2163 *) Avoid filename truncation for various CA files.
2164 [Ben Laurie (CHATS)]
2166 *) Use sizeof in preference to magic numbers.
2167 [Ben Laurie (CHATS)]
2169 *) Avoid filename truncation in cert requests.
2170 [Ben Laurie (CHATS)]
2172 *) Add assertions to check for (supposedly impossible) buffer
2174 [Ben Laurie (CHATS)]
2176 *) Don't cache truncated DNS entries in the local cache (this could
2177 potentially lead to a spoofing attack).
2178 [Ben Laurie (CHATS)]
2180 *) Fix various buffers to be large enough for hex/decimal
2181 representations in a platform independent manner.
2182 [Ben Laurie (CHATS)]
2184 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2185 resizing buffers containing secrets, and use where appropriate.
2186 [Ben Laurie (CHATS)]
2188 *) Add BIO_indent() to avoid much slightly worrying code to do
2190 [Ben Laurie (CHATS)]
2192 *) Convert sprintf()/BIO_puts() to BIO_printf().
2193 [Ben Laurie (CHATS)]
2195 *) buffer_gets() could terminate with the buffer only half
2197 [Ben Laurie (CHATS)]
2199 *) Add assertions to prevent user-supplied crypto functions from
2200 overflowing internal buffers by having large block sizes, etc.
2201 [Ben Laurie (CHATS)]
2203 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2205 [Ben Laurie (CHATS)]
2207 *) Eliminate unused copy of key in RC4.
2208 [Ben Laurie (CHATS)]
2210 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2211 [Ben Laurie (CHATS)]
2213 *) Fix off-by-one error in EGD path.
2214 [Ben Laurie (CHATS)]
2216 *) If RANDFILE path is too long, ignore instead of truncating.
2217 [Ben Laurie (CHATS)]
2219 *) Eliminate unused and incorrectly sized X.509 structure
2221 [Ben Laurie (CHATS)]
2223 *) Eliminate unused and dangerous function knumber().
2224 [Ben Laurie (CHATS)]
2226 *) Eliminate unused and dangerous structure, KSSL_ERR.
2227 [Ben Laurie (CHATS)]
2229 *) Protect against overlong session ID context length in an encoded
2230 session object. Since these are local, this does not appear to be
2232 [Ben Laurie (CHATS)]
2234 *) Change from security patch (see 0.9.6e below) that did not affect
2235 the 0.9.6 release series:
2237 Remote buffer overflow in SSL3 protocol - an attacker could
2238 supply an oversized master key in Kerberos-enabled versions.
2240 [Ben Laurie (CHATS)]
2242 *) Change the SSL kerb5 codes to match RFC 2712.
2245 *) Make -nameopt work fully for req and add -reqopt switch.
2246 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2248 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2249 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2251 *) Make sure tests can be performed even if the corresponding algorithms
2252 have been removed entirely. This was also the last step to make
2253 OpenSSL compilable with DJGPP under all reasonable conditions.
2254 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2256 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2257 to allow version independent disabling of normally unselected ciphers,
2258 which may be activated as a side-effect of selecting a single cipher.
2260 (E.g., cipher list string "RSA" enables ciphersuites that are left
2261 out of "ALL" because they do not provide symmetric encryption.
2262 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2263 [Lutz Jaenicke, Bodo Moeller]
2265 *) Add appropriate support for separate platform-dependent build
2266 directories. The recommended way to make a platform-dependent
2267 build directory is the following (tested on Linux), maybe with
2270 # Place yourself outside of the OpenSSL source tree. In
2271 # this example, the environment variable OPENSSL_SOURCE
2272 # is assumed to contain the absolute OpenSSL source directory.
2273 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2274 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2275 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2276 mkdir -p `dirname $F`
2277 ln -s $OPENSSL_SOURCE/$F $F
2280 To be absolutely sure not to disturb the source tree, a "make clean"
2281 is a good thing. If it isn't successfull, don't worry about it,
2282 it probably means the source directory is very clean.
2285 *) Make sure any ENGINE control commands make local copies of string
2286 pointers passed to them whenever necessary. Otherwise it is possible
2287 the caller may have overwritten (or deallocated) the original string
2288 data when a later ENGINE operation tries to use the stored values.
2289 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2291 *) Improve diagnostics in file reading and command-line digests.
2292 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2294 *) Add AES modes CFB and OFB to the object database. Correct an
2295 error in AES-CFB decryption.
2298 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2299 allows existing EVP_CIPHER_CTX structures to be reused after
2300 calling EVP_*Final(). This behaviour is used by encryption
2301 BIOs and some applications. This has the side effect that
2302 applications must explicitly clean up cipher contexts with
2303 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2306 *) Check the values of dna and dnb in bn_mul_recursive before calling
2307 bn_mul_comba (a non zero value means the a or b arrays do not contain
2308 n2 elements) and fallback to bn_mul_normal if either is not zero.
2311 *) Fix escaping of non-ASCII characters when using the -subj option
2312 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2315 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2316 form for "surname", serialNumber has no short form.
2317 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2318 therefore remove "mail" short name for "internet 7".
2319 The OID for unique identifiers in X509 certificates is
2320 x500UniqueIdentifier, not uniqueIdentifier.
2321 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2324 *) Add an "init" command to the ENGINE config module and auto initialize
2325 ENGINEs. Without any "init" command the ENGINE will be initialized
2326 after all ctrl commands have been executed on it. If init=1 the
2327 ENGINE is initailized at that point (ctrls before that point are run
2328 on the uninitialized ENGINE and after on the initialized one). If
2329 init=0 then the ENGINE will not be iniatialized at all.
2332 *) Fix the 'app_verify_callback' interface so that the user-defined
2333 argument is actually passed to the callback: In the
2334 SSL_CTX_set_cert_verify_callback() prototype, the callback
2335 declaration has been changed from
2338 int (*cb)(X509_STORE_CTX *,void *);
2339 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2340 i=s->ctx->app_verify_callback(&ctx)
2341 has been changed into
2342 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2344 To update applications using SSL_CTX_set_cert_verify_callback(),
2345 a dummy argument can be added to their callback functions.
2346 [D. K. Smetters <smetters@parc.xerox.com>]
2348 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2349 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2351 *) Add and OPENSSL_LOAD_CONF define which will cause
2352 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2353 This allows older applications to transparently support certain
2354 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2355 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2356 load the config file and OPENSSL_add_all_algorithms_conf() which will
2357 always load it have also been added.
2360 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2361 Adjust NIDs and EVP layer.
2362 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2364 *) Config modules support in openssl utility.
2366 Most commands now load modules from the config file,
2367 though in a few (such as version) this isn't done
2368 because it couldn't be used for anything.
2370 In the case of ca and req the config file used is
2371 the same as the utility itself: that is the -config
2372 command line option can be used to specify an
2376 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2377 use "openssl_conf" if filename is NULL use default openssl config file.
2380 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2381 config section name. Add a new flag to tolerate a missing config file
2382 and move code to CONF_modules_load_file().
2385 *) Support for crypto accelerator cards from Accelerated Encryption
2386 Processing, www.aep.ie. (Use engine 'aep')
2387 The support was copied from 0.9.6c [engine] and adapted/corrected
2388 to work with the new engine framework.
2389 [AEP Inc. and Richard Levitte]
2391 *) Support for SureWare crypto accelerator cards from Baltimore
2392 Technologies. (Use engine 'sureware')
2393 The support was copied from 0.9.6c [engine] and adapted
2394 to work with the new engine framework.
2397 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2398 make the newer ENGINE framework commands for the CHIL engine work.
2399 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2401 *) Make it possible to produce shared libraries on ReliantUNIX.
2402 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2404 *) Add the configuration target debug-linux-ppro.
2405 Make 'openssl rsa' use the general key loading routines
2406 implemented in apps.c, and make those routines able to
2407 handle the key format FORMAT_NETSCAPE and the variant
2409 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2411 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2412 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2414 *) Add -keyform to rsautl, and document -engine.
2415 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2417 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2418 BIO_R_NO_SUCH_FILE error code rather than the generic
2419 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2422 *) Add new functions
2424 ERR_peek_last_error_line
2425 ERR_peek_last_error_line_data.
2426 These are similar to
2429 ERR_peek_error_line_data,
2430 but report on the latest error recorded rather than the first one
2431 still in the error queue.
2432 [Ben Laurie, Bodo Moeller]
2434 *) default_algorithms option in ENGINE config module. This allows things
2436 default_algorithms = ALL
2437 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2440 *) Prelminary ENGINE config module.
2443 *) New experimental application configuration code.
2446 *) Change the AES code to follow the same name structure as all other
2447 symmetric ciphers, and behave the same way. Move everything to
2448 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2449 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2451 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2452 [Ben Laurie and Theo de Raadt]
2454 *) Add option to output public keys in req command.
2455 [Massimiliano Pala madwolf@openca.org]
2457 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2458 (up to about 10% better than before for P-192 and P-224).
2461 *) New functions/macros
2463 SSL_CTX_set_msg_callback(ctx, cb)
2464 SSL_CTX_set_msg_callback_arg(ctx, arg)
2465 SSL_set_msg_callback(ssl, cb)
2466 SSL_set_msg_callback_arg(ssl, arg)
2468 to request calling a callback function
2470 void cb(int write_p, int version, int content_type,
2471 const void *buf, size_t len, SSL *ssl, void *arg)
2473 whenever a protocol message has been completely received
2474 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2475 protocol version according to which the SSL library interprets
2476 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2477 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2478 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2479 specification (change_cipher_spec(20), alert(21), handshake(22)).
2480 'buf' and 'len' point to the actual message, 'ssl' to the
2481 SSL object, and 'arg' is the application-defined value set by
2482 SSL[_CTX]_set_msg_callback_arg().
2484 'openssl s_client' and 'openssl s_server' have new '-msg' options
2485 to enable a callback that displays all protocol messages.
2488 *) Change the shared library support so shared libraries are built as
2489 soon as the corresponding static library is finished, and thereby get
2490 openssl and the test programs linked against the shared library.
2491 This still only happens when the keyword "shard" has been given to
2492 the configuration scripts.
2494 NOTE: shared library support is still an experimental thing, and
2495 backward binary compatibility is still not guaranteed.
2496 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2498 *) Add support for Subject Information Access extension.
2499 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2501 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2502 additional bytes when new memory had to be allocated, not just
2503 when reusing an existing buffer.
2506 *) New command line and configuration option 'utf8' for the req command.
2507 This allows field values to be specified as UTF8 strings.
2510 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2511 runs for the former and machine-readable output for the latter.
2514 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2515 of the e-mail address in the DN (i.e., it will go into a certificate
2516 extension only). The new configuration file option 'email_in_dn = no'
2517 has the same effect.
2518 [Massimiliano Pala madwolf@openca.org]
2520 *) Change all functions with names starting with des_ to be starting
2521 with DES_ instead. Add wrappers that are compatible with libdes,
2522 but are named _ossl_old_des_*. Finally, add macros that map the
2523 des_* symbols to the corresponding _ossl_old_des_* if libdes
2524 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2525 desired, the des_* symbols will be mapped to DES_*, with one
2528 Since we provide two compatibility mappings, the user needs to
2529 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2530 compatibility is desired. The default (i.e., when that macro
2531 isn't defined) is OpenSSL 0.9.6c compatibility.
2533 There are also macros that enable and disable the support of old
2534 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2535 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2536 are defined, the default will apply: to support the old des routines.
2538 In either case, one must include openssl/des.h to get the correct
2539 definitions. Do not try to just include openssl/des_old.h, that
2542 NOTE: This is a major break of an old API into a new one. Software
2543 authors are encouraged to switch to the DES_ style functions. Some
2544 time in the future, des_old.h and the libdes compatibility functions
2545 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2546 default), and then completely removed.
2549 *) Test for certificates which contain unsupported critical extensions.
2550 If such a certificate is found during a verify operation it is
2551 rejected by default: this behaviour can be overridden by either
2552 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2553 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2554 X509_supported_extension() has also been added which returns 1 if a
2555 particular extension is supported.
2558 *) Modify the behaviour of EVP cipher functions in similar way to digests
2559 to retain compatibility with existing code.
2562 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2563 compatibility with existing code. In particular the 'ctx' parameter does
2564 not have to be to be initialized before the call to EVP_DigestInit() and
2565 it is tidied up after a call to EVP_DigestFinal(). New function
2566 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2567 EVP_MD_CTX_copy() changed to not require the destination to be
2568 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2569 requires the destination to be valid.
2571 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2572 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2575 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2576 so that complete 'Handshake' protocol structures are kept in memory
2577 instead of overwriting 'msg_type' and 'length' with 'body' data.
2580 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2581 [Massimo Santin via Richard Levitte]
2583 *) Major restructuring to the underlying ENGINE code. This includes
2584 reduction of linker bloat, separation of pure "ENGINE" manipulation
2585 (initialisation, etc) from functionality dealing with implementations
2586 of specific crypto iterfaces. This change also introduces integrated
2587 support for symmetric ciphers and digest implementations - so ENGINEs
2588 can now accelerate these by providing EVP_CIPHER and EVP_MD
2589 implementations of their own. This is detailed in crypto/engine/README
2590 as it couldn't be adequately described here. However, there are a few
2591 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2592 were changed in the original introduction of ENGINE code have now
2593 reverted back - the hooking from this code to ENGINE is now a good
2594 deal more passive and at run-time, operations deal directly with
2595 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2596 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2597 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2598 they were not being used by the framework as there is no concept of a
2599 BIGNUM_METHOD and they could not be generalised to the new
2600 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2601 ENGINE_cpy() has been removed as it cannot be consistently defined in
2605 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2608 *) Change mkdef.pl to sort symbols that get the same entry number,
2609 and make sure the automatically generated functions ERR_load_*
2610 become part of libeay.num as well.
2613 *) New function SSL_renegotiate_pending(). This returns true once
2614 renegotiation has been requested (either SSL_renegotiate() call
2615 or HelloRequest/ClientHello receveived from the peer) and becomes
2616 false once a handshake has been completed.
2617 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2618 sends a HelloRequest, but does not ensure that a handshake takes
2619 place. SSL_renegotiate_pending() is useful for checking if the
2620 client has followed the request.)
2623 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2624 By default, clients may request session resumption even during
2625 renegotiation (if session ID contexts permit); with this option,
2626 session resumption is possible only in the first handshake.
2628 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2629 more bits available for options that should not be part of
2630 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2633 *) Add some demos for certificate and certificate request creation.
2636 *) Make maximum certificate chain size accepted from the peer application
2637 settable (SSL*_get/set_max_cert_list()), as proposed by
2638 "Douglas E. Engert" <deengert@anl.gov>.
2641 *) Add support for shared libraries for Unixware-7
2642 (Boyd Lynn Gerber <gerberb@zenez.com>).
2645 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2646 be done prior to destruction. Use this to unload error strings from
2647 ENGINEs that load their own error strings. NB: This adds two new API
2648 functions to "get" and "set" this destroy handler in an ENGINE.
2651 *) Alter all existing ENGINE implementations (except "openssl" and
2652 "openbsd") to dynamically instantiate their own error strings. This
2653 makes them more flexible to be built both as statically-linked ENGINEs
2654 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2655 Also, add stub code to each that makes building them as self-contained
2656 shared-libraries easier (see README.ENGINE).
2659 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2660 implementations into applications that are completely implemented in
2661 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2662 commands that can be used to configure what shared-library to load and
2663 to control aspects of the way it is handled. Also, made an update to
2664 the README.ENGINE file that brings its information up-to-date and
2665 provides some information and instructions on the "dynamic" ENGINE
2666 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2669 *) Make it possible to unload ranges of ERR strings with a new
2670 "ERR_unload_strings" function.
2673 *) Add a copy() function to EVP_MD.
2676 *) Make EVP_MD routines take a context pointer instead of just the
2677 md_data void pointer.
2680 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2681 that the digest can only process a single chunk of data
2682 (typically because it is provided by a piece of
2683 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2684 is only going to provide a single chunk of data, and hence the
2685 framework needn't accumulate the data for oneshot drivers.
2688 *) As with "ERR", make it possible to replace the underlying "ex_data"
2689 functions. This change also alters the storage and management of global
2690 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2691 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2692 index counters. The API functions that use this state have been changed
2693 to take a "class_index" rather than pointers to the class's local STACK
2694 and counter, and there is now an API function to dynamically create new
2695 classes. This centralisation allows us to (a) plug a lot of the
2696 thread-safety problems that existed, and (b) makes it possible to clean
2697 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2698 such data would previously have always leaked in application code and
2699 workarounds were in place to make the memory debugging turn a blind eye
2700 to it. Application code that doesn't use this new function will still
2701 leak as before, but their memory debugging output will announce it now
2702 rather than letting it slide.
2704 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2705 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2706 has a return value to indicate success or failure.
2709 *) Make it possible to replace the underlying "ERR" functions such that the
2710 global state (2 LHASH tables and 2 locks) is only used by the "default"
2711 implementation. This change also adds two functions to "get" and "set"
2712 the implementation prior to it being automatically set the first time
2713 any other ERR function takes place. Ie. an application can call "get",
2714 pass the return value to a module it has just loaded, and that module
2715 can call its own "set" function using that value. This means the
2716 module's "ERR" operations will use (and modify) the error state in the
2717 application and not in its own statically linked copy of OpenSSL code.
2720 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2721 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2722 the operation, and provides a more encapsulated way for external code
2723 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2724 to use these functions rather than manually incrementing the counts.
2726 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2729 *) Add EVP test program.
2732 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2735 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2736 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2737 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2738 These allow a CRL to be built without having to access X509_CRL fields
2739 directly. Modify 'ca' application to use new functions.
2742 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2743 bug workarounds. Rollback attack detection is a security feature.
2744 The problem will only arise on OpenSSL servers when TLSv1 is not
2745 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2746 Software authors not wanting to support TLSv1 will have special reasons
2747 for their choice and can explicitly enable this option.
2748 [Bodo Moeller, Lutz Jaenicke]
2750 *) Rationalise EVP so it can be extended: don't include a union of
2751 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2752 (similar to those existing for EVP_CIPHER_CTX).
2757 EVP_MD_CTX_init(&md); /* new function call */
2758 EVP_DigestInit(&md, EVP_sha1());
2759 EVP_DigestUpdate(&md, in, len);
2760 EVP_DigestFinal(&md, out, NULL);
2761 EVP_MD_CTX_cleanup(&md); /* new function call */
2765 *) Make DES key schedule conform to the usual scheme, as well as
2766 correcting its structure. This means that calls to DES functions
2767 now have to pass a pointer to a des_key_schedule instead of a
2768 plain des_key_schedule (which was actually always a pointer
2771 des_key_schedule ks;
2773 des_set_key_checked(..., &ks);
2774 des_ncbc_encrypt(..., &ks, ...);
2776 (Note that a later change renames 'des_...' into 'DES_...'.)
2779 *) Initial reduction of linker bloat: the use of some functions, such as
2780 PEM causes large amounts of unused functions to be linked in due to
2781 poor organisation. For example pem_all.c contains every PEM function
2782 which has a knock on effect of linking in large amounts of (unused)
2783 ASN1 code. Grouping together similar functions and splitting unrelated
2784 functions prevents this.
2787 *) Cleanup of EVP macros.
2790 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2791 correct _ecb suffix.
2794 *) Add initial OCSP responder support to ocsp application. The
2795 revocation information is handled using the text based index
2796 use by the ca application. The responder can either handle
2797 requests generated internally, supplied in files (for example
2798 via a CGI script) or using an internal minimal server.
2801 *) Add configuration choices to get zlib compression for TLS.
2804 *) Changes to Kerberos SSL for RFC 2712 compliance:
2805 1. Implemented real KerberosWrapper, instead of just using
2806 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2807 2. Implemented optional authenticator field of KerberosWrapper.
2809 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2810 and authenticator structs; see crypto/krb5/.
2812 Generalized Kerberos calls to support multiple Kerberos libraries.
2813 [Vern Staats <staatsvr@asc.hpc.mil>,
2814 Jeffrey Altman <jaltman@columbia.edu>
2815 via Richard Levitte]
2817 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2818 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2819 values for each of the key sizes rather than having just
2820 parameters (and 'speed' generating keys each time).
2823 *) Speed up EVP routines.
2826 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2827 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2828 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2829 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2831 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2832 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2833 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2836 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2838 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2841 *) Added the OS2-EMX target.
2842 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2844 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2845 to support NCONF routines in extension code. New function CONF_set_nconf()
2846 to allow functions which take an NCONF to also handle the old LHASH
2847 structure: this means that the old CONF compatible routines can be
2848 retained (in particular wrt extensions) without having to duplicate the
2849 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2852 *) Enhance the general user interface with mechanisms for inner control
2853 and with possibilities to have yes/no kind of prompts.
2856 *) Change all calls to low level digest routines in the library and
2857 applications to use EVP. Add missing calls to HMAC_cleanup() and
2858 don't assume HMAC_CTX can be copied using memcpy().
2859 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2861 *) Add the possibility to control engines through control names but with
2862 arbitrary arguments instead of just a string.
2863 Change the key loaders to take a UI_METHOD instead of a callback
2864 function pointer. NOTE: this breaks binary compatibility with earlier
2865 versions of OpenSSL [engine].
2866 Adapt the nCipher code for these new conditions and add a card insertion
2870 *) Enhance the general user interface with mechanisms to better support
2871 dialog box interfaces, application-defined prompts, the possibility
2872 to use defaults (for example default passwords from somewhere else)
2873 and interrupts/cancellations.
2876 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2877 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2880 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2881 tidy up some unnecessarily weird code in 'sk_new()').
2882 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2884 *) Change the key loading routines for ENGINEs to use the same kind
2885 callback (pem_password_cb) as all other routines that need this
2889 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2890 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2891 than this minimum value is recommended.
2894 *) New random seeder for OpenVMS, using the system process statistics
2895 that are easily reachable.
2898 *) Windows apparently can't transparently handle global
2899 variables defined in DLLs. Initialisations such as:
2901 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2903 wont compile. This is used by the any applications that need to
2904 declare their own ASN1 modules. This was fixed by adding the option
2905 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2906 needed for static libraries under Win32.
2909 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2910 setting of purpose and trust fields. New X509_STORE trust and
2911 purpose functions and tidy up setting in other SSL functions.
2914 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2915 structure. These are inherited by X509_STORE_CTX when it is
2916 initialised. This allows various defaults to be set in the
2917 X509_STORE structure (such as flags for CRL checking and custom
2918 purpose or trust settings) for functions which only use X509_STORE_CTX
2919 internally such as S/MIME.
2921 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2922 trust settings if they are not set in X509_STORE. This allows X509_STORE
2923 purposes and trust (in S/MIME for example) to override any set by default.
2925 Add command line options for CRL checking to smime, s_client and s_server
2929 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2930 are set then the CRL is looked up in the X509_STORE structure and
2931 its validity and signature checked, then if the certificate is found
2932 in the CRL the verify fails with a revoked error.
2934 Various new CRL related callbacks added to X509_STORE_CTX structure.
2936 Command line options added to 'verify' application to support this.
2938 This needs some additional work, such as being able to handle multiple
2939 CRLs with different times, extension based lookup (rather than just
2940 by subject name) and ultimately more complete V2 CRL extension
2944 *) Add a general user interface API (crypto/ui/). This is designed
2945 to replace things like des_read_password and friends (backward
2946 compatibility functions using this new API are provided).
2947 The purpose is to remove prompting functions from the DES code
2948 section as well as provide for prompting through dialog boxes in
2949 a window system and the like.
2952 *) Add "ex_data" support to ENGINE so implementations can add state at a
2953 per-structure level rather than having to store it globally.
2956 *) Make it possible for ENGINE structures to be copied when retrieved by
2957 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2958 This causes the "original" ENGINE structure to act like a template,
2959 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2960 operational state can be localised to each ENGINE structure, despite the
2961 fact they all share the same "methods". New ENGINE structures returned in
2962 this case have no functional references and the return value is the single
2963 structural reference. This matches the single structural reference returned
2964 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2968 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2969 needs to match any other type at all we need to manually clear the
2973 *) Changes to the "openssl engine" utility to include;
2974 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2975 about an ENGINE's available control commands.
2976 - executing control commands from command line arguments using the
2977 '-pre' and '-post' switches. '-post' is only used if '-t' is
2978 specified and the ENGINE is successfully initialised. The syntax for
2979 the individual commands are colon-separated, for example;
2980 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2983 *) New dynamic control command support for ENGINEs. ENGINEs can now
2984 declare their own commands (numbers), names (strings), descriptions,
2985 and input types for run-time discovery by calling applications. A
2986 subset of these commands are implicitly classed as "executable"
2987 depending on their input type, and only these can be invoked through
2988 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2989 can be based on user input, config files, etc). The distinction is
2990 that "executable" commands cannot return anything other than a boolean
2991 result and can only support numeric or string input, whereas some
2992 discoverable commands may only be for direct use through
2993 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2994 pointers, or other custom uses. The "executable" commands are to
2995 support parameterisations of ENGINE behaviour that can be
2996 unambiguously defined by ENGINEs and used consistently across any
2997 OpenSSL-based application. Commands have been added to all the
2998 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2999 control over shared-library paths without source code alterations.
3002 *) Changed all ENGINE implementations to dynamically allocate their
3003 ENGINEs rather than declaring them statically. Apart from this being
3004 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3005 this also allows the implementations to compile without using the
3006 internal engine_int.h header.
3009 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3010 'const' value. Any code that should be able to modify a RAND_METHOD
3011 should already have non-const pointers to it (ie. they should only
3012 modify their own ones).
3015 *) Made a variety of little tweaks to the ENGINE code.
3016 - "atalla" and "ubsec" string definitions were moved from header files
3017 to C code. "nuron" string definitions were placed in variables
3018 rather than hard-coded - allowing parameterisation of these values
3019 later on via ctrl() commands.
3020 - Removed unused "#if 0"'d code.
3021 - Fixed engine list iteration code so it uses ENGINE_free() to release
3022 structural references.
3023 - Constified the RAND_METHOD element of ENGINE structures.
3024 - Constified various get/set functions as appropriate and added
3025 missing functions (including a catch-all ENGINE_cpy that duplicates
3026 all ENGINE values onto a new ENGINE except reference counts/state).
3027 - Removed NULL parameter checks in get/set functions. Setting a method
3028 or function to NULL is a way of cancelling out a previously set
3029 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3030 and doesn't justify the extra error symbols and code.
3031 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3032 flags from engine_int.h to engine.h.
3033 - Changed prototypes for ENGINE handler functions (init(), finish(),
3034 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3037 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3038 to the algorithm using long division. The binary algorithm can be
3039 used only if the modulus is odd. On 32-bit systems, it is faster
3040 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3041 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3042 up to 450 bits. In 64-bit environments, the binary algorithm
3043 appears to be advantageous for much longer moduli; here we use it
3044 for moduli up to 2048 bits.
3047 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3048 could not support the combine flag in choice fields.
3051 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3052 extensions from a certificate request to the certificate.
3055 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3056 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3057 file: this allows the display of the certificate about to be
3058 signed to be customised, to allow certain fields to be included
3059 or excluded and extension details. The old system didn't display
3060 multicharacter strings properly, omitted fields not in the policy
3061 and couldn't display additional details such as extensions.
3064 *) Function EC_POINTs_mul for multiple scalar multiplication
3065 of an arbitrary number of elliptic curve points
3066 \sum scalars[i]*points[i],
3067 optionally including the generator defined for the EC_GROUP:
3068 scalar*generator + \sum scalars[i]*points[i].
3070 EC_POINT_mul is a simple wrapper function for the typical case
3071 that the point list has just one item (besides the optional
3075 *) First EC_METHODs for curves over GF(p):
3077 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3078 operations and provides various method functions that can also
3079 operate with faster implementations of modular arithmetic.
3081 EC_GFp_mont_method() reuses most functions that are part of
3082 EC_GFp_simple_method, but uses Montgomery arithmetic.
3084 [Bodo Moeller; point addition and point doubling
3085 implementation directly derived from source code provided by
3086 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3088 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3089 crypto/ec/ec_lib.c):
3091 Curves are EC_GROUP objects (with an optional group generator)
3092 based on EC_METHODs that are built into the library.
3094 Points are EC_POINT objects based on EC_GROUP objects.
3096 Most of the framework would be able to handle curves over arbitrary
3097 finite fields, but as there are no obvious types for fields other
3098 than GF(p), some functions are limited to that for now.
3101 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3102 that the file contains a complete HTTP response.
3105 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3106 change the def and num file printf format specifier from "%-40sXXX"
3107 to "%-39s XXX". The latter will always guarantee a space after the
3108 field while the former will cause them to run together if the field
3109 is 40 of more characters long.
3112 *) Constify the cipher and digest 'method' functions and structures
3113 and modify related functions to take constant EVP_MD and EVP_CIPHER
3117 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3118 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3121 *) Modify EVP_Digest*() routines so they now return values. Although the
3122 internal software routines can never fail additional hardware versions
3126 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3128 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3129 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3132 ERR_R_NESTED_ASN1_ERROR
3134 ERR_R_MISSING_ASN1_EOS
3135 were 4 .. 9, conflicting with
3136 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3138 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3139 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3141 Add new error code 'ERR_R_INTERNAL_ERROR'.
3144 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3148 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3149 sets the subject name for a new request or supersedes the
3150 subject name in a given request. Formats that can be parsed are
3151 'CN=Some Name, OU=myOU, C=IT'
3153 'CN=Some Name/OU=myOU/C=IT'.
3155 Add options '-batch' and '-verbose' to 'openssl req'.
3156 [Massimiliano Pala <madwolf@hackmasters.net>]
3158 *) Introduce the possibility to access global variables through
3159 functions on platform were that's the best way to handle exporting
3160 global variables in shared libraries. To enable this functionality,
3161 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3162 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3163 is normally done by Configure or something similar).
3165 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3166 in the source file (foo.c) like this:
3168 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3169 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3171 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3172 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3174 OPENSSL_DECLARE_GLOBAL(int,foo);
3175 #define foo OPENSSL_GLOBAL_REF(foo)
3176 OPENSSL_DECLARE_GLOBAL(double,bar);
3177 #define bar OPENSSL_GLOBAL_REF(bar)
3179 The #defines are very important, and therefore so is including the
3180 header file everywhere where the defined globals are used.
3182 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3183 of ASN.1 items, but that structure is a bit different.
3185 The largest change is in util/mkdef.pl which has been enhanced with
3186 better and easier to understand logic to choose which symbols should
3187 go into the Windows .def files as well as a number of fixes and code
3188 cleanup (among others, algorithm keywords are now sorted
3189 lexicographically to avoid constant rewrites).
3192 *) In BN_div() keep a copy of the sign of 'num' before writing the
3193 result to 'rm' because if rm==num the value will be overwritten
3194 and produce the wrong result if 'num' is negative: this caused
3195 problems with BN_mod() and BN_nnmod().
3198 *) Function OCSP_request_verify(). This checks the signature on an
3199 OCSP request and verifies the signer certificate. The signer
3200 certificate is just checked for a generic purpose and OCSP request
3204 *) Add OCSP_check_validity() function to check the validity of OCSP
3205 responses. OCSP responses are prepared in real time and may only
3206 be a few seconds old. Simply checking that the current time lies
3207 between thisUpdate and nextUpdate max reject otherwise valid responses
3208 caused by either OCSP responder or client clock inaccuracy. Instead
3209 we allow thisUpdate and nextUpdate to fall within a certain period of
3210 the current time. The age of the response can also optionally be
3211 checked. Two new options -validity_period and -status_age added to
3215 *) If signature or public key algorithm is unrecognized print out its
3216 OID rather that just UNKNOWN.
3219 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3220 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3221 ID to be generated from the issuer certificate alone which can then be
3222 passed to OCSP_id_issuer_cmp().
3225 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3226 ASN1 modules to export functions returning ASN1_ITEM pointers
3227 instead of the ASN1_ITEM structures themselves. This adds several
3228 new macros which allow the underlying ASN1 function/structure to
3229 be accessed transparently. As a result code should not use ASN1_ITEM
3230 references directly (such as &X509_it) but instead use the relevant
3231 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3232 use of the new ASN1 code on platforms where exporting structures
3233 is problematical (for example in shared libraries) but exporting
3234 functions returning pointers to structures is not.
3237 *) Add support for overriding the generation of SSL/TLS session IDs.
3238 These callbacks can be registered either in an SSL_CTX or per SSL.
3239 The purpose of this is to allow applications to control, if they wish,
3240 the arbitrary values chosen for use as session IDs, particularly as it
3241 can be useful for session caching in multiple-server environments. A
3242 command-line switch for testing this (and any client code that wishes
3243 to use such a feature) has been added to "s_server".
3244 [Geoff Thorpe, Lutz Jaenicke]
3246 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3247 of the form '#if defined(...) || defined(...) || ...' and
3248 '#if !defined(...) && !defined(...) && ...'. This also avoids
3249 the growing number of special cases it was previously handling.
3252 *) Make all configuration macros available for application by making
3253 sure they are available in opensslconf.h, by giving them names starting
3254 with "OPENSSL_" to avoid conflicts with other packages and by making
3255 sure e_os2.h will cover all platform-specific cases together with
3257 Additionally, it is now possible to define configuration/platform-
3258 specific names (called "system identities"). In the C code, these
3259 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3260 macro with the name beginning with "OPENSSL_SYS_", which is determined
3261 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3265 *) New option -set_serial to 'req' and 'x509' this allows the serial
3266 number to use to be specified on the command line. Previously self
3267 signed certificates were hard coded with serial number 0 and the
3268 CA options of 'x509' had to use a serial number in a file which was
3272 *) New options to 'ca' utility to support V2 CRL entry extensions.
3273 Currently CRL reason, invalidity date and hold instruction are
3274 supported. Add new CRL extensions to V3 code and some new objects.
3277 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3278 disable standard block padding (aka PKCS#5 padding) in the EVP
3279 API, which was previously mandatory. This means that the data is
3280 not padded in any way and so the total length much be a multiple
3281 of the block size, otherwise an error occurs.
3284 *) Initial (incomplete) OCSP SSL support.
3287 *) New function OCSP_parse_url(). This splits up a URL into its host,
3288 port and path components: primarily to parse OCSP URLs. New -url
3289 option to ocsp utility.
3292 *) New nonce behavior. The return value of OCSP_check_nonce() now
3293 reflects the various checks performed. Applications can decide
3294 whether to tolerate certain situations such as an absent nonce
3295 in a response when one was present in a request: the ocsp application
3296 just prints out a warning. New function OCSP_add1_basic_nonce()
3297 this is to allow responders to include a nonce in a response even if
3298 the request is nonce-less.
3301 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3302 skipped when using openssl x509 multiple times on a single input file,
3303 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3306 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3307 set string type: to handle setting ASN1_TIME structures. Fix ca
3308 utility to correctly initialize revocation date of CRLs.
3311 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3312 the clients preferred ciphersuites and rather use its own preferences.
3313 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3314 Internet Explorer by ensuring unchanged hash method during stepup.
3315 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3318 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3319 to aes and add a new 'exist' option to print out symbols that don't
3323 *) Additional options to ocsp utility to allow flags to be set and
3324 additional certificates supplied.
3327 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3328 OCSP client a number of certificate to only verify the response
3332 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3333 handle the new API. Currently only ECB, CBC modes supported. Add new
3336 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3337 Encryption Standard (AES) Ciphersuites for Transport Layer
3338 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3339 not enabled by default and were not part of the "ALL" ciphersuite
3340 alias because they were not yet official; they could be
3341 explicitly requested by specifying the "AESdraft" ciphersuite
3342 group alias. In the final release of OpenSSL 0.9.7, the group
3343 alias is called "AES" and is part of "ALL".)
3344 [Ben Laurie, Steve Henson, Bodo Moeller]
3346 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3347 request to response.
3350 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3351 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3352 extract information from a certificate request. OCSP_response_create()
3353 creates a response and optionally adds a basic response structure.
3354 OCSP_basic_add1_status() adds a complete single response to a basic
3355 response and returns the OCSP_SINGLERESP structure just added (to allow
3356 extensions to be included for example). OCSP_basic_add1_cert() adds a
3357 certificate to a basic response and OCSP_basic_sign() signs a basic
3358 response with various flags. New helper functions ASN1_TIME_check()
3359 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3360 (converts ASN1_TIME to GeneralizedTime).
3363 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3364 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3365 structure from a certificate. X509_pubkey_digest() digests the public_key
3366 contents: this is used in various key identifiers.
3369 *) Make sk_sort() tolerate a NULL argument.
3370 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3372 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3373 passed by the function are trusted implicitly. If any of them signed the
3374 response then it is assumed to be valid and is not verified.
3377 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3378 to data. This was previously part of the PKCS7 ASN1 code. This
3379 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3380 [Steve Henson, reported by Kenneth R. Robinette
3381 <support@securenetterm.com>]
3383 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3384 routines: without these tracing memory leaks is very painful.
3385 Fix leaks in PKCS12 and PKCS7 routines.
3388 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3389 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3390 effectively meant GeneralizedTime would never be used. Now it
3391 is initialised to -1 but X509_time_adj() now has to check the value
3392 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3393 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3394 [Steve Henson, reported by Kenneth R. Robinette
3395 <support@securenetterm.com>]
3397 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3398 result in a zero length in the ASN1_INTEGER structure which was
3399 not consistent with the structure when d2i_ASN1_INTEGER() was used
3400 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3401 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3402 where it did not print out a minus for negative ASN1_INTEGER.
3405 *) Add summary printout to ocsp utility. The various functions which
3406 convert status values to strings have been renamed to:
3407 OCSP_response_status_str(), OCSP_cert_status_str() and
3408 OCSP_crl_reason_str() and are no longer static. New options
3409 to verify nonce values and to disable verification. OCSP response
3410 printout format cleaned up.
3413 *) Add additional OCSP certificate checks. These are those specified
3414 in RFC2560. This consists of two separate checks: the CA of the
3415 certificate being checked must either be the OCSP signer certificate
3416 or the issuer of the OCSP signer certificate. In the latter case the
3417 OCSP signer certificate must contain the OCSP signing extended key
3418 usage. This check is performed by attempting to match the OCSP
3419 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3420 in the OCSP_CERTID structures of the response.
3423 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3424 and related routines. This uses the standard OpenSSL certificate
3425 verify routines to perform initial checks (just CA validity) and
3426 to obtain the certificate chain. Then additional checks will be
3427 performed on the chain. Currently the root CA is checked to see
3428 if it is explicitly trusted for OCSP signing. This is used to set
3429 a root CA as a global signing root: that is any certificate that
3430 chains to that CA is an acceptable OCSP signing certificate.
3433 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3434 extensions from a separate configuration file.
3435 As when reading extensions from the main configuration file,
3436 the '-extensions ...' option may be used for specifying the
3438 [Massimiliano Pala <madwolf@comune.modena.it>]
3440 *) New OCSP utility. Allows OCSP requests to be generated or
3441 read. The request can be sent to a responder and the output
3442 parsed, outputed or printed in text form. Not complete yet:
3443 still needs to check the OCSP response validity.
3446 *) New subcommands for 'openssl ca':
3447 'openssl ca -status <serial>' prints the status of the cert with
3448 the given serial number (according to the index file).
3449 'openssl ca -updatedb' updates the expiry status of certificates
3451 [Massimiliano Pala <madwolf@comune.modena.it>]
3453 *) New '-newreq-nodes' command option to CA.pl. This is like
3454 '-newreq', but calls 'openssl req' with the '-nodes' option
3455 so that the resulting key is not encrypted.
3456 [Damien Miller <djm@mindrot.org>]
3458 *) New configuration for the GNU Hurd.
3459 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3461 *) Initial code to implement OCSP basic response verify. This
3462 is currently incomplete. Currently just finds the signer's
3463 certificate and verifies the signature on the response.
3466 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3467 value of OPENSSLDIR. This is available via the new '-d' option
3468 to 'openssl version', and is also included in 'openssl version -a'.
3471 *) Allowing defining memory allocation callbacks that will be given
3472 file name and line number information in additional arguments
3473 (a const char* and an int). The basic functionality remains, as
3474 well as the original possibility to just replace malloc(),
3475 realloc() and free() by functions that do not know about these
3476 additional arguments. To register and find out the current
3477 settings for extended allocation functions, the following
3478 functions are provided:
3480 CRYPTO_set_mem_ex_functions
3481 CRYPTO_set_locked_mem_ex_functions
3482 CRYPTO_get_mem_ex_functions
3483 CRYPTO_get_locked_mem_ex_functions
3485 These work the same way as CRYPTO_set_mem_functions and friends.
3486 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3487 extended allocation function is enabled.
3488 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3489 a conventional allocation function is enabled.
3490 [Richard Levitte, Bodo Moeller]
3492 *) Finish off removing the remaining LHASH function pointer casts.
3493 There should no longer be any prototype-casting required when using
3494 the LHASH abstraction, and any casts that remain are "bugs". See
3495 the callback types and macros at the head of lhash.h for details
3496 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3499 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3500 If /dev/[u]random devices are not available or do not return enough
3501 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3503 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3504 /etc/entropy will be queried once each in this sequence, quering stops
3505 when enough entropy was collected without querying more sockets.
3508 *) Change the Unix RAND_poll() variant to be able to poll several
3509 random devices, as specified by DEVRANDOM, until a sufficient amount
3510 of data has been collected. We spend at most 10 ms on each file
3511 (select timeout) and read in non-blocking mode. DEVRANDOM now
3512 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3513 (previously it was just the string "/dev/urandom"), so on typical
3514 platforms the 10 ms delay will never occur.
3515 Also separate out the Unix variant to its own file, rand_unix.c.
3516 For VMS, there's a currently-empty rand_vms.c.
3519 *) Move OCSP client related routines to ocsp_cl.c. These
3520 provide utility functions which an application needing
3521 to issue a request to an OCSP responder and analyse the
3522 response will typically need: as opposed to those which an
3523 OCSP responder itself would need which will be added later.
3525 OCSP_request_sign() signs an OCSP request with an API similar
3526 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3527 response. OCSP_response_get1_basic() extracts basic response
3528 from response. OCSP_resp_find_status(): finds and extracts status
3529 information from an OCSP_CERTID structure (which will be created
3530 when the request structure is built). These are built from lower
3531 level functions which work on OCSP_SINGLERESP structures but
3532 wont normally be used unless the application wishes to examine
3533 extensions in the OCSP response for example.
3535 Replace nonce routines with a pair of functions.
3536 OCSP_request_add1_nonce() adds a nonce value and optionally
3537 generates a random value. OCSP_check_nonce() checks the
3538 validity of the nonce in an OCSP response.
3541 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3542 This doesn't copy the supplied OCSP_CERTID and avoids the
3543 need to free up the newly created id. Change return type
3544 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3545 This can then be used to add extensions to the request.
3546 Deleted OCSP_request_new(), since most of its functionality
3547 is now in OCSP_REQUEST_new() (and the case insensitive name
3548 clash) apart from the ability to set the request name which
3549 will be added elsewhere.
3552 *) Update OCSP API. Remove obsolete extensions argument from
3553 various functions. Extensions are now handled using the new
3554 OCSP extension code. New simple OCSP HTTP function which
3555 can be used to send requests and parse the response.
3558 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3559 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3560 uses the special reorder version of SET OF to sort the attributes
3561 and reorder them to match the encoded order. This resolves a long
3562 standing problem: a verify on a PKCS7 structure just after signing
3563 it used to fail because the attribute order did not match the
3564 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3565 it uses the received order. This is necessary to tolerate some broken
3566 software that does not order SET OF. This is handled by encoding
3567 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3568 to produce the required SET OF.
3571 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3572 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3573 files to get correct declarations of the ASN.1 item variables.
3576 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3577 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3578 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3579 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3580 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3581 ASN1_ITEM and no wrapper functions.
3584 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3585 replace the old function pointer based I/O routines. Change most of
3586 the *_d2i_bio() and *_d2i_fp() functions to use these.
3589 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3590 lines, recognice more "algorithms" that can be deselected, and make
3591 it complain about algorithm deselection that isn't recognised.
3594 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3595 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3596 to use new functions. Add NO_ASN1_OLD which can be set to remove
3597 some old style ASN1 functions: this can be used to determine if old
3598 code will still work when these eventually go away.
3601 *) New extension functions for OCSP structures, these follow the
3602 same conventions as certificates and CRLs.
3605 *) New function X509V3_add1_i2d(). This automatically encodes and
3606 adds an extension. Its behaviour can be customised with various
3607 flags to append, replace or delete. Various wrappers added for
3608 certifcates and CRLs.
3611 *) Fix to avoid calling the underlying ASN1 print routine when
3612 an extension cannot be parsed. Correct a typo in the
3613 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3616 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3617 entries for variables.
3620 *) Add functionality to apps/openssl.c for detecting locking
3621 problems: As the program is single-threaded, all we have
3622 to do is register a locking callback using an array for
3623 storing which locks are currently held by the program.
3626 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3627 SSL_get_ex_data_X509_STORE_idx(), which is used in
3628 ssl_verify_cert_chain() and thus can be called at any time
3629 during TLS/SSL handshakes so that thread-safety is essential.
3630 Unfortunately, the ex_data design is not at all suited
3631 for multi-threaded use, so it probably should be abolished.
3634 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3635 [Broadcom, tweaked and integrated by Geoff Thorpe]
3637 *) Move common extension printing code to new function
3638 X509V3_print_extensions(). Reorganise OCSP print routines and
3639 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3642 *) New function X509_signature_print() to remove duplication in some
3646 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3647 set (this was treated exactly the same as SET OF previously). This
3648 is used to reorder the STACK representing the structure to match the
3649 encoding. This will be used to get round a problem where a PKCS7
3650 structure which was signed could not be verified because the STACK
3651 order did not reflect the encoded order.
3654 *) Reimplement the OCSP ASN1 module using the new code.
3657 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3658 for its ASN1 operations. The old style function pointers still exist
3659 for now but they will eventually go away.
3662 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3663 completely replaces the old ASN1 functionality with a table driven
3664 encoder and decoder which interprets an ASN1_ITEM structure describing
3665 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3666 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3667 has also been converted to the new form.
3670 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3671 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3672 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3673 for negative moduli.
3676 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3677 of not touching the result's sign bit.
3680 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3684 *) Changed the LHASH code to use prototypes for callbacks, and created
3685 macros to declare and implement thin (optionally static) functions
3686 that provide type-safety and avoid function pointer casting for the
3687 type-specific callbacks.
3690 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3692 [Veers Staats <staatsvr@asc.hpc.mil>,
3693 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3695 *) Reformat the FAQ so the different questions and answers can be divided
3696 in sections depending on the subject.
3699 *) Have the zlib compression code load ZLIB.DLL dynamically under
3703 *) New function BN_mod_sqrt for computing square roots modulo a prime
3704 (using the probabilistic Tonelli-Shanks algorithm unless
3705 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3706 be handled deterministically).
3707 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3709 *) Make BN_mod_inverse faster by explicitly handling small quotients
3710 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3711 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3714 *) New function BN_kronecker.
3717 *) Fix BN_gcd so that it works on negative inputs; the result is
3718 positive unless both parameters are zero.
3719 Previously something reasonably close to an infinite loop was
3720 possible because numbers could be growing instead of shrinking
3721 in the implementation of Euclid's algorithm.
3724 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3725 sign of the number in question.
3727 Fix BN_is_word(a,w) to work correctly for w == 0.
3729 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3730 because its test if the absolute value of 'a' equals 'w'.
3731 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3732 it exists mostly for use in the implementations of BN_is_zero(),
3733 BN_is_one(), and BN_is_word().
3736 *) New function BN_swap.
3739 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3740 the exponentiation functions are more likely to produce reasonable
3741 results on negative inputs.
3744 *) Change BN_mod_mul so that the result is always non-negative.
3745 Previously, it could be negative if one of the factors was negative;
3746 I don't think anyone really wanted that behaviour.
3749 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3750 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3751 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3752 and add new functions:
3761 BN_mod_lshift1_quick
3765 These functions always generate non-negative results.
3767 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3768 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3770 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3771 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3772 be reduced modulo m.
3773 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3776 The following entry accidentily appeared in the CHANGES file
3777 distributed with OpenSSL 0.9.7. The modifications described in
3778 it do *not* apply to OpenSSL 0.9.7.
3780 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3781 was actually never needed) and in BN_mul(). The removal in BN_mul()
3782 required a small change in bn_mul_part_recursive() and the addition
3783 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3784 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3785 bn_sub_words() and bn_add_words() except they take arrays with
3790 *) In 'openssl passwd', verify passwords read from the terminal
3791 unless the '-salt' option is used (which usually means that
3792 verification would just waste user's time since the resulting
3793 hash is going to be compared with some given password hash)
3794 or the new '-noverify' option is used.
3796 This is an incompatible change, but it does not affect
3797 non-interactive use of 'openssl passwd' (passwords on the command
3798 line, '-stdin' option, '-in ...' option) and thus should not
3802 *) Remove all references to RSAref, since there's no more need for it.
3805 *) Make DSO load along a path given through an environment variable
3806 (SHLIB_PATH) with shl_load().
3809 *) Constify the ENGINE code as a result of BIGNUM constification.
3810 Also constify the RSA code and most things related to it. In a
3811 few places, most notable in the depth of the ASN.1 code, ugly
3812 casts back to non-const were required (to be solved at a later
3816 *) Make it so the openssl application has all engines loaded by default.
3819 *) Constify the BIGNUM routines a little more.
3822 *) Add the following functions:
3824 ENGINE_load_cswift()
3826 ENGINE_load_atalla()
3828 ENGINE_load_builtin_engines()
3830 That way, an application can itself choose if external engines that
3831 are built-in in OpenSSL shall ever be used or not. The benefit is
3832 that applications won't have to be linked with libdl or other dso
3833 libraries unless it's really needed.
3835 Changed 'openssl engine' to load all engines on demand.
3836 Changed the engine header files to avoid the duplication of some
3837 declarations (they differed!).
3840 *) 'openssl engine' can now list capabilities.
3843 *) Better error reporting in 'openssl engine'.
3846 *) Never call load_dh_param(NULL) in s_server.
3849 *) Add engine application. It can currently list engines by name and
3850 identity, and test if they are actually available.
3853 *) Improve RPM specification file by forcing symbolic linking and making
3854 sure the installed documentation is also owned by root.root.
3855 [Damien Miller <djm@mindrot.org>]
3857 *) Give the OpenSSL applications more possibilities to make use of
3858 keys (public as well as private) handled by engines.
3861 *) Add OCSP code that comes from CertCo.
3864 *) Add VMS support for the Rijndael code.
3867 *) Added untested support for Nuron crypto accelerator.
3870 *) Add support for external cryptographic devices. This code was
3871 previously distributed separately as the "engine" branch.
3872 [Geoff Thorpe, Richard Levitte]
3874 *) Rework the filename-translation in the DSO code. It is now possible to
3875 have far greater control over how a "name" is turned into a filename
3876 depending on the operating environment and any oddities about the
3877 different shared library filenames on each system.
3880 *) Support threads on FreeBSD-elf in Configure.
3883 *) Fix for SHA1 assembly problem with MASM: it produces
3884 warnings about corrupt line number information when assembling
3885 with debugging information. This is caused by the overlapping
3887 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3890 NCONF_get_number() has no error checking at all. As a replacement,
3891 NCONF_get_number_e() is defined (_e for "error checking") and is
3892 promoted strongly. The old NCONF_get_number is kept around for
3893 binary backward compatibility.
3894 Make it possible for methods to load from something other than a BIO,
3895 by providing a function pointer that is given a name instead of a BIO.
3896 For example, this could be used to load configuration data from an
3900 *) Fix for non blocking accept BIOs. Added new I/O special reason
3901 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3902 with non blocking I/O was not possible because no retry code was
3903 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3907 *) Added the beginnings of Rijndael support.
3910 *) Fix for bug in DirectoryString mask setting. Add support for
3911 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3912 to allow certificate printing to more controllable, additional
3913 'certopt' option to 'x509' to allow new printing options to be
3917 *) Clean old EAY MD5 hack from e_os.h.
3920 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3922 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3923 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3924 [Joe Orton, Steve Henson]
3926 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3928 *) Fix additional bug revealed by the NISCC test suite:
3930 Stop bug triggering large recursion when presented with
3931 certain ASN.1 tags (CVE-2003-0851)
3934 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3936 *) Fix various bugs revealed by running the NISCC test suite:
3938 Stop out of bounds reads in the ASN1 code when presented with
3939 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3941 If verify callback ignores invalid public key errors don't try to check
3942 certificate signature with the NULL public key.
3946 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3947 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3951 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3952 extra data after the compression methods not only for TLS 1.0
3953 but also for SSL 3.0 (as required by the specification).
3954 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3956 *) Change X509_certificate_type() to mark the key as exported/exportable
3957 when it's 512 *bits* long, not 512 bytes.
3960 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3962 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3963 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3964 a protocol version number mismatch like a decryption error
3965 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3968 *) Turn on RSA blinding by default in the default implementation
3969 to avoid a timing attack. Applications that don't want it can call
3970 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3971 They would be ill-advised to do so in most cases.
3972 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3974 *) Change RSA blinding code so that it works when the PRNG is not
3975 seeded (in this case, the secret RSA exponent is abused as
3976 an unpredictable seed -- if it is not unpredictable, there
3977 is no point in blinding anyway). Make RSA blinding thread-safe
3978 by remembering the creator's thread ID in rsa->blinding and
3979 having all other threads use local one-time blinding factors
3980 (this requires more computation than sharing rsa->blinding, but
3981 avoids excessive locking; and if an RSA object is not shared
3982 between threads, blinding will still be very fast).
3985 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3987 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3988 via timing by performing a MAC computation even if incorrrect
3989 block cipher padding has been found. This is a countermeasure
3990 against active attacks where the attacker has to distinguish
3991 between bad padding and a MAC verification error. (CVE-2003-0078)
3993 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3994 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3995 Martin Vuagnoux (EPFL, Ilion)]
3997 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3999 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4000 memory from it's contents. This is done with a counter that will
4001 place alternating values in each byte. This can be used to solve
4002 two issues: 1) the removal of calls to memset() by highly optimizing
4003 compilers, and 2) cleansing with other values than 0, since those can
4004 be read through on certain media, for example a swap space on disk.
4007 *) Bugfix: client side session caching did not work with external caching,
4008 because the session->cipher setting was not restored when reloading
4009 from the external cache. This problem was masked, when
4010 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4011 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4014 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4015 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4016 [Zeev Lieber <zeev-l@yahoo.com>]
4018 *) Undo an undocumented change introduced in 0.9.6e which caused
4019 repeated calls to OpenSSL_add_all_ciphers() and
4020 OpenSSL_add_all_digests() to be ignored, even after calling
4024 *) Change the default configuration reader to deal with last line not
4025 being properly terminated.
4028 *) Change X509_NAME_cmp() so it applies the special rules on handling
4029 DN values that are of type PrintableString, as well as RDNs of type
4030 emailAddress where the value has the type ia5String.
4031 [stefank@valicert.com via Richard Levitte]
4033 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4034 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4035 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4036 the bitwise-OR of the two for use by the majority of applications
4037 wanting this behaviour, and update the docs. The documented
4038 behaviour and actual behaviour were inconsistent and had been
4039 changing anyway, so this is more a bug-fix than a behavioural
4041 [Geoff Thorpe, diagnosed by Nadav Har'El]
4043 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4044 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4047 *) Fix initialization code race conditions in
4048 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4049 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4050 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4051 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4052 ssl2_get_cipher_by_char(),
4053 ssl3_get_cipher_by_char().
4054 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4056 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4057 the cached sessions are flushed, as the remove_cb() might use ex_data
4058 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4059 (see [openssl.org #212]).
4060 [Geoff Thorpe, Lutz Jaenicke]
4062 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4063 length, instead of the encoding length to d2i_ASN1_OBJECT.
4066 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4068 *) [In 0.9.6g-engine release:]
4069 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4070 [Lynn Gazis <lgazis@rainbow.com>]
4072 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4074 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4075 and get fix the header length calculation.
4076 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4077 Alon Kantor <alonk@checkpoint.com> (and others),
4080 *) Use proper error handling instead of 'assertions' in buffer
4081 overflow checks added in 0.9.6e. This prevents DoS (the
4082 assertions could call abort()).
4083 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4085 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4087 *) Add various sanity checks to asn1_get_length() to reject
4088 the ASN1 length bytes if they exceed sizeof(long), will appear
4089 negative or the content length exceeds the length of the
4091 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4093 *) Fix cipher selection routines: ciphers without encryption had no flags
4094 for the cipher strength set and where therefore not handled correctly
4095 by the selection routines (PR #130).
4098 *) Fix EVP_dsa_sha macro.
4102 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4103 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4104 that was added in OpenSSL 0.9.6d.
4106 As the countermeasure turned out to be incompatible with some
4107 broken SSL implementations, the new option is part of SSL_OP_ALL.
4108 SSL_OP_ALL is usually employed when compatibility with weird SSL
4109 implementations is desired (e.g. '-bugs' option to 's_client' and
4110 's_server'), so the new option is automatically set in many
4114 *) Changes in security patch:
4116 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4117 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4118 Air Force Materiel Command, USAF, under agreement number
4121 *) Add various sanity checks to asn1_get_length() to reject
4122 the ASN1 length bytes if they exceed sizeof(long), will appear
4123 negative or the content length exceeds the length of the
4124 supplied buffer. (CVE-2002-0659)
4125 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4127 *) Assertions for various potential buffer overflows, not known to
4129 [Ben Laurie (CHATS)]
4131 *) Various temporary buffers to hold ASCII versions of integers were
4132 too small for 64 bit platforms. (CVE-2002-0655)
4133 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4135 *) Remote buffer overflow in SSL3 protocol - an attacker could
4136 supply an oversized session ID to a client. (CVE-2002-0656)
4137 [Ben Laurie (CHATS)]
4139 *) Remote buffer overflow in SSL2 protocol - an attacker could
4140 supply an oversized client master key. (CVE-2002-0656)
4141 [Ben Laurie (CHATS)]
4143 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4145 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4146 encoded as NULL) with id-dsa-with-sha1.
4147 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4149 *) Check various X509_...() return values in apps/req.c.
4150 [Nils Larsch <nla@trustcenter.de>]
4152 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4153 an end-of-file condition would erronously be flagged, when the CRLF
4154 was just at the end of a processed block. The bug was discovered when
4155 processing data through a buffering memory BIO handing the data to a
4156 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4157 <ptsekov@syntrex.com> and Nedelcho Stanev.
4160 *) Implement a countermeasure against a vulnerability recently found
4161 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4162 before application data chunks to avoid the use of known IVs
4163 with data potentially chosen by the attacker.
4166 *) Fix length checks in ssl3_get_client_hello().
4169 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4170 to prevent ssl3_read_internal() from incorrectly assuming that
4171 ssl3_read_bytes() found application data while handshake
4172 processing was enabled when in fact s->s3->in_read_app_data was
4173 merely automatically cleared during the initial handshake.
4174 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4176 *) Fix object definitions for Private and Enterprise: they were not
4177 recognized in their shortname (=lowercase) representation. Extend
4178 obj_dat.pl to issue an error when using undefined keywords instead
4179 of silently ignoring the problem (Svenning Sorensen
4180 <sss@sss.dnsalias.net>).
4183 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4184 generators, i.e. generators other than 2 and 5. (Previously, the
4185 code did not properly initialise the 'add' and 'rem' values to
4186 BN_generate_prime().)
4188 In the new general case, we do not insist that 'generator' is
4189 actually a primitive root: This requirement is rather pointless;
4190 a generator of the order-q subgroup is just as good, if not
4194 *) Map new X509 verification errors to alerts. Discovered and submitted by
4195 Tom Wu <tom@arcot.com>.
4198 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4199 returning non-zero before the data has been completely received
4200 when using non-blocking I/O.
4201 [Bodo Moeller; problem pointed out by John Hughes]
4203 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4204 [Ben Laurie, Lutz Jaenicke]
4206 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4207 Yoram Zahavi <YoramZ@gilian.com>).
4210 *) Add information about CygWin 1.3 and on, and preserve proper
4211 configuration for the versions before that.
4212 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4214 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4215 check whether we deal with a copy of a session and do not delete from
4216 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4217 <izhar@checkpoint.com>.
4220 *) Do not store session data into the internal session cache, if it
4221 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4222 flag is set). Proposed by Aslam <aslam@funk.com>.
4225 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4229 *) [In 0.9.6d-engine release:]
4230 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4231 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4233 *) Add the configuration target linux-s390x.
4234 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4236 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4237 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4238 variable as an indication that a ClientHello message has been
4239 received. As the flag value will be lost between multiple
4240 invocations of ssl3_accept when using non-blocking I/O, the
4241 function may not be aware that a handshake has actually taken
4242 place, thus preventing a new session from being added to the
4245 To avoid this problem, we now set s->new_session to 2 instead of
4246 using a local variable.
4247 [Lutz Jaenicke, Bodo Moeller]
4249 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4250 if the SSL_R_LENGTH_MISMATCH error is detected.
4251 [Geoff Thorpe, Bodo Moeller]
4253 *) New 'shared_ldflag' column in Configure platform table.
4256 *) Fix EVP_CIPHER_mode macro.
4257 ["Dan S. Camper" <dan@bti.net>]
4259 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4260 type, we must throw them away by setting rr->length to 0.
4261 [D P Chang <dpc@qualys.com>]
4263 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4265 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4266 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4267 worked incorrectly for those cases where range = 10..._2 and
4268 3*range is two bits longer than range.)
4271 *) Only add signing time to PKCS7 structures if it is not already
4275 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4276 OBJ_ld_ce should be OBJ_id_ce.
4277 Also some ip-pda OIDs in crypto/objects/objects.txt were
4278 incorrect (cf. RFC 3039).
4279 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4281 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4282 returns early because it has nothing to do.
4283 [Andy Schneider <andy.schneider@bjss.co.uk>]
4285 *) [In 0.9.6c-engine release:]
4286 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4287 [Andy Schneider <andy.schneider@bjss.co.uk>]
4289 *) [In 0.9.6c-engine release:]
4290 Add support for Cryptographic Appliance's keyserver technology.
4291 (Use engine 'keyclient')
4292 [Cryptographic Appliances and Geoff Thorpe]
4294 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4295 is called via tools/c89.sh because arguments have to be
4296 rearranged (all '-L' options must appear before the first object
4298 [Richard Shapiro <rshapiro@abinitio.com>]
4300 *) [In 0.9.6c-engine release:]
4301 Add support for Broadcom crypto accelerator cards, backported
4303 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4305 *) [In 0.9.6c-engine release:]
4306 Add support for SureWare crypto accelerator cards from
4307 Baltimore Technologies. (Use engine 'sureware')
4308 [Baltimore Technologies and Mark Cox]
4310 *) [In 0.9.6c-engine release:]
4311 Add support for crypto accelerator cards from Accelerated
4312 Encryption Processing, www.aep.ie. (Use engine 'aep')
4313 [AEP Inc. and Mark Cox]
4315 *) Add a configuration entry for gcc on UnixWare.
4316 [Gary Benson <gbenson@redhat.com>]
4318 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4319 messages are stored in a single piece (fixed-length part and
4320 variable-length part combined) and fix various bugs found on the way.
4323 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4324 instead. BIO_gethostbyname() does not know what timeouts are
4325 appropriate, so entries would stay in cache even when they have
4327 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4329 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4330 faced with a pathologically small ClientHello fragment that does
4331 not contain client_version: Instead of aborting with an error,
4332 simply choose the highest available protocol version (i.e.,
4333 TLS 1.0 unless it is disabled). In practice, ClientHello
4334 messages are never sent like this, but this change gives us
4335 strictly correct behaviour at least for TLS.
4338 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4339 never resets s->method to s->ctx->method when called from within
4340 one of the SSL handshake functions.
4341 [Bodo Moeller; problem pointed out by Niko Baric]
4343 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4344 (sent using the client's version number) if client_version is
4345 smaller than the protocol version in use. Also change
4346 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4347 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4348 the client will at least see that alert.
4351 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4355 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4356 client receives HelloRequest while in a handshake.
4357 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4359 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4360 should end in 'break', not 'goto end' which circuments various
4361 cleanups done in state SSL_ST_OK. But session related stuff
4362 must be disabled for SSL_ST_OK in the case that we just sent a
4365 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4366 before just sending a HelloRequest.
4367 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4369 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4370 reveal whether illegal block cipher padding was found or a MAC
4371 verification error occured. (Neither SSLerr() codes nor alerts
4372 are directly visible to potential attackers, but the information
4373 may leak via logfiles.)
4375 Similar changes are not required for the SSL 2.0 implementation
4376 because the number of padding bytes is sent in clear for SSL 2.0,
4377 and the extra bytes are just ignored. However ssl/s2_pkt.c
4378 failed to verify that the purported number of padding bytes is in
4382 *) Add OpenUNIX-8 support including shared libraries
4383 (Boyd Lynn Gerber <gerberb@zenez.com>).
4386 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4387 'wristwatch attack' using huge encoding parameters (cf.
4388 James H. Manger's CRYPTO 2001 paper). Note that the
4389 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4390 encoding parameters and hence was not vulnerable.
4393 *) BN_sqr() bug fix.
4394 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4396 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4397 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4398 followed by modular reduction.
4399 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4401 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4402 equivalent based on BN_pseudo_rand() instead of BN_rand().
4405 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4406 This function was broken, as the check for a new client hello message
4407 to handle SGC did not allow these large messages.
4408 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4411 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4414 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4415 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4418 *) Rework the configuration and shared library support for Tru64 Unix.
4419 The configuration part makes use of modern compiler features and
4420 still retains old compiler behavior for those that run older versions
4421 of the OS. The shared library support part includes a variant that
4422 uses the RPATH feature, and is available through the special
4423 configuration target "alpha-cc-rpath", which will never be selected
4425 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4427 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4428 with the same message size as in ssl3_get_certificate_request().
4429 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4430 messages might inadvertently be reject as too long.
4431 [Petr Lampa <lampa@fee.vutbr.cz>]
4433 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4436 *) Modified SSL library such that the verify_callback that has been set
4437 specificly for an SSL object with SSL_set_verify() is actually being
4438 used. Before the change, a verify_callback set with this function was
4439 ignored and the verify_callback() set in the SSL_CTX at the time of
4440 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4441 to allow the necessary settings.
4444 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4445 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4446 done automatically (in contradiction to the requirements of the C
4447 standard). This made problems when used from OpenSSH.
4450 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4451 dh->length and always used
4453 BN_rand_range(priv_key, dh->p).
4455 BN_rand_range() is not necessary for Diffie-Hellman, and this
4456 specific range makes Diffie-Hellman unnecessarily inefficient if
4457 dh->length (recommended exponent length) is much smaller than the
4458 length of dh->p. We could use BN_rand_range() if the order of
4459 the subgroup was stored in the DH structure, but we only have
4464 BN_rand(priv_key, l, ...)
4466 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4472 RSA_eay_public_encrypt
4473 RSA_eay_private_decrypt
4474 RSA_eay_private_encrypt (signing)
4475 RSA_eay_public_decrypt (signature verification)
4477 (default implementations for RSA_public_encrypt,
4478 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4479 always reject numbers >= n.
4482 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4483 to synchronize access to 'locking_thread'. This is necessary on
4484 systems where access to 'locking_thread' (an 'unsigned long'
4485 variable) is not atomic.
4488 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4489 *before* setting the 'crypto_lock_rand' flag. The previous code had
4490 a race condition if 0 is a valid thread ID.
4491 [Travis Vitek <vitek@roguewave.com>]
4493 *) Add support for shared libraries under Irix.
4494 [Albert Chin-A-Young <china@thewrittenword.com>]
4496 *) Add configuration option to build on Linux on both big-endian and
4498 [Ralf Baechle <ralf@uni-koblenz.de>]
4500 *) Add the possibility to create shared libraries on HP-UX.
4503 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4505 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4506 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4507 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4508 PRNG state recovery was possible based on the output of
4509 one PRNG request appropriately sized to gain knowledge on
4510 'md' followed by enough consecutive 1-byte PRNG requests
4511 to traverse all of 'state'.
4513 1. When updating 'md_local' (the current thread's copy of 'md')
4514 during PRNG output generation, hash all of the previous
4515 'md_local' value, not just the half used for PRNG output.
4517 2. Make the number of bytes from 'state' included into the hash
4518 independent from the number of PRNG bytes requested.
4520 The first measure alone would be sufficient to avoid
4521 Markku-Juhani's attack. (Actually it had never occurred
4522 to me that the half of 'md_local' used for chaining was the
4523 half from which PRNG output bytes were taken -- I had always
4524 assumed that the secret half would be used.) The second
4525 measure makes sure that additional data from 'state' is never
4526 mixed into 'md_local' in small portions; this heuristically
4527 further strengthens the PRNG.
4530 *) Fix crypto/bn/asm/mips3.s.
4533 *) When only the key is given to "enc", the IV is undefined. Print out
4534 an error message in this case.
4537 *) Handle special case when X509_NAME is empty in X509 printing routines.
4540 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4541 positive and less than q.
4544 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4545 used: it isn't thread safe and the add_lock_callback should handle
4547 [Paul Rose <Paul.Rose@bridge.com>]
4549 *) Verify that incoming data obeys the block size in
4550 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4554 [Ulf Möller, Bodo Möller]
4556 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4557 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4558 when fixing the server behaviour for backwards-compatible 'client
4559 hello' messages. (Note that the attack is impractical against
4560 SSL 3.0 and TLS 1.0 anyway because length and version checking
4561 means that the probability of guessing a valid ciphertext is
4562 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4565 Before 0.9.5, the countermeasure (hide the error by generating a
4566 random 'decryption result') did not work properly because
4567 ERR_clear_error() was missing, meaning that SSL_get_error() would
4568 detect the supposedly ignored error.
4570 Both problems are now fixed.
4573 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4574 (previously it was 1024).
4577 *) Fix for compatibility mode trust settings: ignore trust settings
4578 unless some valid trust or reject settings are present.
4581 *) Fix for blowfish EVP: its a variable length cipher.
4584 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4585 parameters in DSA public key structures and return an error in the
4586 DSA routines if parameters are absent.
4589 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4590 in the current directory if neither $RANDFILE nor $HOME was set.
4591 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4592 caused some confusion to Windows users who haven't defined $HOME.
4593 Thus RAND_file_name() is changed again: e_os.h can define a
4594 DEFAULT_HOME, which will be used if $HOME is not set.
4595 For Windows, we use "C:"; on other platforms, we still require
4596 environment variables.
4598 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4599 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4600 having multiple threads call RAND_poll() concurrently.
4603 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4604 combination of a flag and a thread ID variable.
4605 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4606 flag), *other* threads can enter ssleay_add_bytes without obeying
4607 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4608 that they do not hold after the first thread unsets add_do_not_lock).
4611 *) Change bctest again: '-x' expressions are not available in all
4615 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4617 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4618 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4620 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4621 the default extension for executables, if any. Also, make the perl
4622 scripts that use symlink() to test if it really exists and use "cp"
4623 if it doesn't. All this made OpenSSL compilable and installable in
4627 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4628 If SEQUENCE is length is indefinite just set c->slen to the total
4629 amount of data available.
4630 [Steve Henson, reported by shige@FreeBSD.org]
4631 [This change does not apply to 0.9.7.]
4633 *) Change bctest to avoid here-documents inside command substitution
4634 (workaround for FreeBSD /bin/sh bug).
4635 For compatibility with Ultrix, avoid shell functions (introduced
4636 in the bctest version that searches along $PATH).
4639 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4640 with des_encrypt() defined on some operating systems, like Solaris
4644 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4645 On the Importance of Eliminating Errors in Cryptographic
4646 Computations, J. Cryptology 14 (2001) 2, 101-119,
4647 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4650 *) MIPS assembler BIGNUM division bug fix.
4653 *) Disabled incorrect Alpha assembler code.
4656 *) Fix PKCS#7 decode routines so they correctly update the length
4657 after reading an EOC for the EXPLICIT tag.
4659 [This change does not apply to 0.9.7.]
4661 *) Fix bug in PKCS#12 key generation routines. This was triggered
4662 if a 3DES key was generated with a 0 initial byte. Include
4663 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4664 (but broken) behaviour.
4667 *) Enhance bctest to search for a working bc along $PATH and print
4669 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4671 *) Fix memory leaks in err.c: free err_data string if necessary;
4672 don't write to the wrong index in ERR_set_error_data.
4675 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4679 *) Replace rdtsc with _emit statements for VC++ version 5.
4680 [Jeremy Cooper <jeremy@baymoo.org>]
4682 *) Make it possible to reuse SSLv2 sessions.
4685 *) In copy_email() check for >= 0 as a return value for
4686 X509_NAME_get_index_by_NID() since 0 is a valid index.
4687 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4689 *) Avoid coredump with unsupported or invalid public keys by checking if
4690 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4691 PKCS7_verify() fails with non detached data.
4694 *) Don't use getenv in library functions when run as setuid/setgid.
4695 New function OPENSSL_issetugid().
4698 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4699 due to incorrect handling of multi-threading:
4701 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4703 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4705 3. Count how many times MemCheck_off() has been called so that
4706 nested use can be treated correctly. This also avoids
4707 inband-signalling in the previous code (which relied on the
4708 assumption that thread ID 0 is impossible).
4711 *) Add "-rand" option also to s_client and s_server.
4714 *) Fix CPU detection on Irix 6.x.
4715 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4716 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4718 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4721 [This change does not apply to 0.9.7.]
4723 *) Use the cached encoding of an X509_NAME structure rather than
4724 copying it. This is apparently the reason for the libsafe "errors"
4725 but the code is actually correct.
4728 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4729 Bleichenbacher's DSA attack.
4730 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4731 to be set and top=0 forces the highest bit to be set; top=-1 is new
4732 and leaves the highest bit random.
4733 [Ulf Moeller, Bodo Moeller]
4735 *) In the NCONF_...-based implementations for CONF_... queries
4736 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4737 a temporary CONF structure with the data component set to NULL
4738 (which gives segmentation faults in lh_retrieve).
4739 Instead, use NULL for the CONF pointer in CONF_get_string and
4740 CONF_get_number (which may use environment variables) and directly
4741 return NULL from CONF_get_section.
4744 *) Fix potential buffer overrun for EBCDIC.
4747 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4748 keyUsage if basicConstraints absent for a CA.
4751 *) Make SMIME_write_PKCS7() write mail header values with a format that
4752 is more generally accepted (no spaces before the semicolon), since
4753 some programs can't parse those values properly otherwise. Also make
4754 sure BIO's that break lines after each write do not create invalid
4758 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4759 macros previously used would not encode an empty SEQUENCE OF
4760 and break the signature.
4762 [This change does not apply to 0.9.7.]
4764 *) Zero the premaster secret after deriving the master secret in
4768 *) Add some EVP_add_digest_alias registrations (as found in
4769 OpenSSL_add_all_digests()) to SSL_library_init()
4770 aka OpenSSL_add_ssl_algorithms(). This provides improved
4771 compatibility with peers using X.509 certificates
4772 with unconventional AlgorithmIdentifier OIDs.
4775 *) Fix for Irix with NO_ASM.
4776 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4778 *) ./config script fixes.
4779 [Ulf Moeller, Richard Levitte]
4781 *) Fix 'openssl passwd -1'.
4784 *) Change PKCS12_key_gen_asc() so it can cope with non null
4785 terminated strings whose length is passed in the passlen
4786 parameter, for example from PEM callbacks. This was done
4787 by adding an extra length parameter to asc2uni().
4788 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4790 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4791 call failed, free the DSA structure.
4794 *) Fix to uni2asc() to cope with zero length Unicode strings.
4795 These are present in some PKCS#12 files.
4798 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4799 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4800 when writing a 32767 byte record.
4801 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4803 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4804 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4806 (RSA objects have a reference count access to which is protected
4807 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4808 so they are meant to be shared between threads.)
4809 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4810 "Reddie, Steven" <Steven.Reddie@ca.com>]
4812 *) Fix a deadlock in CRYPTO_mem_leaks().
4815 *) Use better test patterns in bntest.
4818 *) rand_win.c fix for Borland C.
4821 *) BN_rshift bugfix for n == 0.
4824 *) Add a 'bctest' script that checks for some known 'bc' bugs
4825 so that 'make test' does not abort just because 'bc' is broken.
4828 *) Store verify_result within SSL_SESSION also for client side to
4829 avoid potential security hole. (Re-used sessions on the client side
4830 always resulted in verify_result==X509_V_OK, not using the original
4831 result of the server certificate verification.)
4834 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4835 SSL3_RT_APPLICATION_DATA, return 0.
4836 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4840 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4841 releases, have been re-implemented by renaming the previous
4842 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4843 and ssl3_read_internal, respectively, and adding 'peek' parameters
4844 to them. The new ssl[23]_{read,peek} functions are calls to
4845 ssl[23]_read_internal with the 'peek' flag set appropriately.
4846 A 'peek' parameter has also been added to ssl3_read_bytes, which
4847 does the actual work for ssl3_read_internal.
4850 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4851 the method-specific "init()" handler. Also clean up ex_data after
4852 calling the method-specific "finish()" handler. Previously, this was
4853 happening the other way round.
4856 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4857 The previous value, 12, was not always sufficient for BN_mod_exp().
4860 *) Make sure that shared libraries get the internal name engine with
4861 the full version number and not just 0. This should mark the
4862 shared libraries as not backward compatible. Of course, this should
4863 be changed again when we can guarantee backward binary compatibility.
4866 *) Fix typo in get_cert_by_subject() in by_dir.c
4867 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4869 *) Rework the system to generate shared libraries:
4871 - Make note of the expected extension for the shared libraries and
4872 if there is a need for symbolic links from for example libcrypto.so.0
4873 to libcrypto.so.0.9.7. There is extended info in Configure for
4876 - Make as few rebuilds of the shared libraries as possible.
4878 - Still avoid linking the OpenSSL programs with the shared libraries.
4880 - When installing, install the shared libraries separately from the
4884 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4886 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4887 and not in SSL_clear because the latter is also used by the
4888 accept/connect functions; previously, the settings made by
4889 SSL_set_read_ahead would be lost during the handshake.
4890 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4892 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4893 Previously, it would create entries for disableed algorithms no
4897 *) Added several new manual pages for SSL_* function.
4900 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4902 *) In ssl23_get_client_hello, generate an error message when faced
4903 with an initial SSL 3.0/TLS record that is too small to contain the
4904 first two bytes of the ClientHello message, i.e. client_version.
4905 (Note that this is a pathologic case that probably has never happened
4906 in real life.) The previous approach was to use the version number
4907 from the record header as a substitute; but our protocol choice
4908 should not depend on that one because it is not authenticated
4909 by the Finished messages.
4912 *) More robust randomness gathering functions for Windows.
4913 [Jeffrey Altman <jaltman@columbia.edu>]
4915 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4916 not set then we don't setup the error code for issuer check errors
4917 to avoid possibly overwriting other errors which the callback does
4918 handle. If an application does set the flag then we assume it knows
4919 what it is doing and can handle the new informational codes
4923 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4924 a general "ANY" type, as such it should be able to decode anything
4925 including tagged types. However it didn't check the class so it would
4926 wrongly interpret tagged types in the same way as their universal
4927 counterpart and unknown types were just rejected. Changed so that the
4928 tagged and unknown types are handled in the same way as a SEQUENCE:
4929 that is the encoding is stored intact. There is also a new type
4930 "V_ASN1_OTHER" which is used when the class is not universal, in this
4931 case we have no idea what the actual type is so we just lump them all
4935 *) On VMS, stdout may very well lead to a file that is written to
4936 in a record-oriented fashion. That means that every write() will
4937 write a separate record, which will be read separately by the
4938 programs trying to read from it. This can be very confusing.
4940 The solution is to put a BIO filter in the way that will buffer
4941 text until a linefeed is reached, and then write everything a
4942 line at a time, so every record written will be an actual line,
4943 not chunks of lines and not (usually doesn't happen, but I've
4944 seen it once) several lines in one record. BIO_f_linebuffer() is
4947 Currently, it's a VMS-only method, because that's where it has
4948 been tested well enough.
4951 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4952 it can return incorrect results.
4953 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4954 but it was in 0.9.6-beta[12].)
4957 *) Disable the check for content being present when verifying detached
4958 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4959 include zero length content when signing messages.
4962 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4963 BIO_ctrl (for BIO pairs).
4966 *) Add DSO method for VMS.
4969 *) Bug fix: Montgomery multiplication could produce results with the
4973 *) Add RPM specification openssl.spec and modify it to build three
4974 packages. The default package contains applications, application
4975 documentation and run-time libraries. The devel package contains
4976 include files, static libraries and function documentation. The
4977 doc package contains the contents of the doc directory. The original
4978 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4981 *) Add a large number of documentation files for many SSL routines.
4982 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4984 *) Add a configuration entry for Sony News 4.
4985 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4987 *) Don't set the two most significant bits to one when generating a
4988 random number < q in the DSA library.
4991 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4992 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4993 the underlying transport is blocking) if a handshake took place.
4994 (The default behaviour is needed by applications such as s_client
4995 and s_server that use select() to determine when to use SSL_read;
4996 but for applications that know in advance when to expect data, it
4997 just makes things more complicated.)
5000 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5004 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5005 work better on such systems.
5006 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5008 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5009 Update PKCS12_parse() so it copies the friendlyName and the
5010 keyid to the certificates aux info.
5013 *) Fix bug in PKCS7_verify() which caused an infinite loop
5014 if there was more than one signature.
5015 [Sven Uszpelkat <su@celocom.de>]
5017 *) Major change in util/mkdef.pl to include extra information
5018 about each symbol, as well as presentig variables as well
5019 as functions. This change means that there's n more need
5020 to rebuild the .num files when some algorithms are excluded.
5023 *) Allow the verify time to be set by an application,
5024 rather than always using the current time.
5027 *) Phase 2 verify code reorganisation. The certificate
5028 verify code now looks up an issuer certificate by a
5029 number of criteria: subject name, authority key id
5030 and key usage. It also verifies self signed certificates
5031 by the same criteria. The main comparison function is
5032 X509_check_issued() which performs these checks.
5034 Lot of changes were necessary in order to support this
5035 without completely rewriting the lookup code.
5037 Authority and subject key identifier are now cached.
5039 The LHASH 'certs' is X509_STORE has now been replaced
5040 by a STACK_OF(X509_OBJECT). This is mainly because an
5041 LHASH can't store or retrieve multiple objects with
5042 the same hash value.
5044 As a result various functions (which were all internal
5045 use only) have changed to handle the new X509_STORE
5046 structure. This will break anything that messed round
5047 with X509_STORE internally.
5049 The functions X509_STORE_add_cert() now checks for an
5050 exact match, rather than just subject name.
5052 The X509_STORE API doesn't directly support the retrieval
5053 of multiple certificates matching a given criteria, however
5054 this can be worked round by performing a lookup first
5055 (which will fill the cache with candidate certificates)
5056 and then examining the cache for matches. This is probably
5057 the best we can do without throwing out X509_LOOKUP
5058 entirely (maybe later...).
5060 The X509_VERIFY_CTX structure has been enhanced considerably.
5062 All certificate lookup operations now go via a get_issuer()
5063 callback. Although this currently uses an X509_STORE it
5064 can be replaced by custom lookups. This is a simple way
5065 to bypass the X509_STORE hackery necessary to make this
5066 work and makes it possible to use more efficient techniques
5067 in future. A very simple version which uses a simple
5068 STACK for its trusted certificate store is also provided
5069 using X509_STORE_CTX_trusted_stack().
5071 The verify_cb() and verify() callbacks now have equivalents
5072 in the X509_STORE_CTX structure.
5074 X509_STORE_CTX also has a 'flags' field which can be used
5075 to customise the verify behaviour.
5078 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5079 excludes S/MIME capabilities.
5082 *) When a certificate request is read in keep a copy of the
5083 original encoding of the signed data and use it when outputing
5084 again. Signatures then use the original encoding rather than
5085 a decoded, encoded version which may cause problems if the
5086 request is improperly encoded.
5089 *) For consistency with other BIO_puts implementations, call
5090 buffer_write(b, ...) directly in buffer_puts instead of calling
5093 In BIO_puts, increment b->num_write as in BIO_write.
5094 [Peter.Sylvester@EdelWeb.fr]
5096 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5097 BN_zero, we may not return a BIGNUM with an array consisting of
5101 *) Avoid calling abort() from within the library when problems are
5102 detected, except if preprocessor symbols have been defined
5103 (such as REF_CHECK, BN_DEBUG etc.).
5106 *) New openssl application 'rsautl'. This utility can be
5107 used for low level RSA operations. DER public key
5108 BIO/fp routines also added.
5111 *) New Configure entry and patches for compiling on QNX 4.
5112 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5114 *) A demo state-machine implementation was sponsored by
5115 Nuron (http://www.nuron.com/) and is now available in
5116 demos/state_machine.
5119 *) New options added to the 'dgst' utility for signature
5120 generation and verification.
5123 *) Unrecognized PKCS#7 content types are now handled via a
5124 catch all ASN1_TYPE structure. This allows unsupported
5125 types to be stored as a "blob" and an application can
5126 encode and decode it manually.
5129 *) Fix various signed/unsigned issues to make a_strex.c
5131 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5133 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5134 length if passed a buffer. ASN1_INTEGER_to_BN failed
5135 if passed a NULL BN and its argument was negative.
5136 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5138 *) Modification to PKCS#7 encoding routines to output definite
5139 length encoding. Since currently the whole structures are in
5140 memory there's not real point in using indefinite length
5141 constructed encoding. However if OpenSSL is compiled with
5142 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5145 *) Added BIO_vprintf() and BIO_vsnprintf().
5148 *) Added more prefixes to parse for in the the strings written
5149 through a logging bio, to cover all the levels that are available
5150 through syslog. The prefixes are now:
5152 PANIC, EMERG, EMR => LOG_EMERG
5153 ALERT, ALR => LOG_ALERT
5154 CRIT, CRI => LOG_CRIT
5155 ERROR, ERR => LOG_ERR
5156 WARNING, WARN, WAR => LOG_WARNING
5157 NOTICE, NOTE, NOT => LOG_NOTICE
5158 INFO, INF => LOG_INFO
5159 DEBUG, DBG => LOG_DEBUG
5161 and as before, if none of those prefixes are present at the
5162 beginning of the string, LOG_ERR is chosen.
5164 On Win32, the LOG_* levels are mapped according to this:
5166 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5167 LOG_WARNING => EVENTLOG_WARNING_TYPE
5168 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5172 *) Made it possible to reconfigure with just the configuration
5173 argument "reconf" or "reconfigure". The command line arguments
5174 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5175 and are retrieved from there when reconfiguring.
5179 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5181 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5184 *) The obj_dat.pl script was messing up the sorting of object
5185 names. The reason was that it compared the quoted version
5186 of strings as a result "OCSP" > "OCSP Signing" because
5187 " > SPACE. Changed script to store unquoted versions of
5188 names and add quotes on output. It was also omitting some
5189 names from the lookup table if they were given a default
5190 value (that is if SN is missing it is given the same
5191 value as LN and vice versa), these are now added on the
5192 grounds that if an object has a name we should be able to
5193 look it up. Finally added warning output when duplicate
5194 short or long names are found.
5197 *) Changes needed for Tandem NSK.
5198 [Scott Uroff <scott@xypro.com>]
5200 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5201 RSA_padding_check_SSLv23(), special padding was never detected
5202 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5203 version rollback attacks was not effective.
5205 In s23_clnt.c, don't use special rollback-attack detection padding
5206 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5207 client; similarly, in s23_srvr.c, don't do the rollback check if
5208 SSL 2.0 is the only protocol enabled in the server.
5211 *) Make it possible to get hexdumps of unprintable data with 'openssl
5212 asn1parse'. By implication, the functions ASN1_parse_dump() and
5213 BIO_dump_indent() are added.
5216 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5217 these print out strings and name structures based on various
5218 flags including RFC2253 support and proper handling of
5219 multibyte characters. Added options to the 'x509' utility
5220 to allow the various flags to be set.
5223 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5224 Also change the functions X509_cmp_current_time() and
5225 X509_gmtime_adj() work with an ASN1_TIME structure,
5226 this will enable certificates using GeneralizedTime in validity
5227 dates to be checked.
5230 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5231 negative public key encodings) on by default,
5232 NO_NEG_PUBKEY_BUG can be set to disable it.
5235 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5236 content octets. An i2c_ASN1_OBJECT is unnecessary because
5237 the encoding can be trivially obtained from the structure.
5240 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5241 not read locks (CRYPTO_r_[un]lock).
5244 *) A first attempt at creating official support for shared
5245 libraries through configuration. I've kept it so the
5246 default is static libraries only, and the OpenSSL programs
5247 are always statically linked for now, but there are
5248 preparations for dynamic linking in place.
5249 This has been tested on Linux and Tru64.
5252 *) Randomness polling function for Win9x, as described in:
5253 Peter Gutmann, Software Generation of Practically Strong
5257 *) Fix so PRNG is seeded in req if using an already existing
5261 *) New options to smime application. -inform and -outform
5262 allow alternative formats for the S/MIME message including
5263 PEM and DER. The -content option allows the content to be
5264 specified separately. This should allow things like Netscape
5265 form signing output easier to verify.
5268 *) Fix the ASN1 encoding of tags using the 'long form'.
5271 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5272 STRING types. These convert content octets to and from the
5273 underlying type. The actual tag and length octets are
5274 already assumed to have been read in and checked. These
5275 are needed because all other string types have virtually
5276 identical handling apart from the tag. By having versions
5277 of the ASN1 functions that just operate on content octets
5278 IMPLICIT tagging can be handled properly. It also allows
5279 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5280 and ASN1_INTEGER are identical apart from the tag.
5283 *) Change the handling of OID objects as follows:
5285 - New object identifiers are inserted in objects.txt, following
5286 the syntax given in objects.README.
5287 - objects.pl is used to process obj_mac.num and create a new
5289 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5292 This is currently kind of a hack, and the perl code in objects.pl
5293 isn't very elegant, but it works as I intended. The simplest way
5294 to check that it worked correctly is to look in obj_dat.h and
5295 check the array nid_objs and make sure the objects haven't moved
5296 around (this is important!). Additions are OK, as well as
5297 consistent name changes.
5300 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5303 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5304 The given file adds to whatever has already been seeded into the
5305 random pool through the RANDFILE configuration file option or
5306 environment variable, or the default random state file.
5309 *) mkstack.pl now sorts each macro group into lexical order.
5310 Previously the output order depended on the order the files
5311 appeared in the directory, resulting in needless rewriting
5315 *) Patches to make OpenSSL compile under Win32 again. Mostly
5316 work arounds for the VC++ problem that it treats func() as
5317 func(void). Also stripped out the parts of mkdef.pl that
5318 added extra typesafe functions: these no longer exist.
5321 *) Reorganisation of the stack code. The macros are now all
5322 collected in safestack.h . Each macro is defined in terms of
5323 a "stack macro" of the form SKM_<name>(type, a, b). The
5324 DEBUG_SAFESTACK is now handled in terms of function casts,
5325 this has the advantage of retaining type safety without the
5326 use of additional functions. If DEBUG_SAFESTACK is not defined
5327 then the non typesafe macros are used instead. Also modified the
5328 mkstack.pl script to handle the new form. Needs testing to see
5329 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5330 the default if no major problems. Similar behaviour for ASN1_SET_OF
5331 and PKCS12_STACK_OF.
5334 *) When some versions of IIS use the 'NET' form of private key the
5335 key derivation algorithm is different. Normally MD5(password) is
5336 used as a 128 bit RC4 key. In the modified case
5337 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5338 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5339 as the old Netscape_RSA functions except they have an additional
5340 'sgckey' parameter which uses the modified algorithm. Also added
5341 an -sgckey command line option to the rsa utility. Thanks to
5342 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5343 algorithm to openssl-dev.
5346 *) The evp_local.h macros were using 'c.##kname' which resulted in
5347 invalid expansion on some systems (SCO 5.0.5 for example).
5348 Corrected to 'c.kname'.
5349 [Phillip Porch <root@theporch.com>]
5351 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5352 a STACK of email addresses from a certificate or request, these look
5353 in the subject name and the subject alternative name extensions and
5354 omit any duplicate addresses.
5357 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5358 This makes DSA verification about 2 % faster.
5361 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5362 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5363 plus overhead for 1024 bit moduli).
5364 This makes exponentiations about 0.5 % faster for 1024 bit
5365 exponents (as measured by "openssl speed rsa2048").
5368 *) Rename memory handling macros to avoid conflicts with other
5370 Malloc => OPENSSL_malloc
5371 Malloc_locked => OPENSSL_malloc_locked
5372 Realloc => OPENSSL_realloc
5373 Free => OPENSSL_free
5376 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5377 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5380 *) CygWin32 support.
5381 [John Jarvie <jjarvie@newsguy.com>]
5383 *) The type-safe stack code has been rejigged. It is now only compiled
5384 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5385 by default all type-specific stack functions are "#define"d back to
5386 standard stack functions. This results in more streamlined output
5387 but retains the type-safety checking possibilities of the original
5391 *) The STACK code has been cleaned up, and certain type declarations
5392 that didn't make a lot of sense have been brought in line. This has
5393 also involved a cleanup of sorts in safestack.h to more correctly
5394 map type-safe stack functions onto their plain stack counterparts.
5395 This work has also resulted in a variety of "const"ifications of
5396 lots of the code, especially "_cmp" operations which should normally
5397 be prototyped with "const" parameters anyway.
5400 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5401 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5402 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5403 where all of 'md' is used each time the PRNG is used, but 'state'
5404 is used only indexed by a cyclic counter. As entropy may not be
5405 well distributed from the beginning, 'md' is important as a
5406 chaining variable. However, the output function chains only half
5407 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5408 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5409 in all of 'state' being rewritten, with the new values depending
5410 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5413 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5414 the handshake is continued after ssl_verify_cert_chain();
5415 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5416 can lead to 'unexplainable' connection aborts later.
5417 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5419 *) Major EVP API cipher revision.
5420 Add hooks for extra EVP features. This allows various cipher
5421 parameters to be set in the EVP interface. Support added for variable
5422 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5423 setting of RC2 and RC5 parameters.
5425 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5428 Remove lots of duplicated code from the EVP library. For example *every*
5429 cipher init() function handles the 'iv' in the same way according to the
5430 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5431 for CFB and OFB modes they zero ctx->num.
5433 New functionality allows removal of S/MIME code RC2 hack.
5435 Most of the routines have the same form and so can be declared in terms
5438 By shifting this to the top level EVP_CipherInit() it can be removed from
5439 all individual ciphers. If the cipher wants to handle IVs or keys
5440 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5443 Change lots of functions like EVP_EncryptUpdate() to now return a
5444 value: although software versions of the algorithms cannot fail
5445 any installed hardware versions can.
5448 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5449 this option is set, tolerate broken clients that send the negotiated
5450 protocol version number instead of the requested protocol version
5454 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5455 i.e. non-zero for export ciphersuites, zero otherwise.
5456 Previous versions had this flag inverted, inconsistent with
5457 rsa_tmp_cb (..._TMP_RSA_CB).
5458 [Bodo Moeller; problem reported by Amit Chopra]
5460 *) Add missing DSA library text string. Work around for some IIS
5461 key files with invalid SEQUENCE encoding.
5464 *) Add a document (doc/standards.txt) that list all kinds of standards
5465 and so on that are implemented in OpenSSL.
5468 *) Enhance c_rehash script. Old version would mishandle certificates
5469 with the same subject name hash and wouldn't handle CRLs at all.
5470 Added -fingerprint option to crl utility, to support new c_rehash
5474 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5477 *) Fix for SSL server purpose checking. Server checking was
5478 rejecting certificates which had extended key usage present
5479 but no ssl client purpose.
5480 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5482 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5483 is a little unclear about how a blank password is handled.
5484 Since the password in encoded as a BMPString with terminating
5485 double NULL a zero length password would end up as just the
5486 double NULL. However no password at all is different and is
5487 handled differently in the PKCS#12 key generation code. NS
5488 treats a blank password as zero length. MSIE treats it as no
5489 password on export: but it will try both on import. We now do
5490 the same: PKCS12_parse() tries zero length and no password if
5491 the password is set to "" or NULL (NULL is now a valid password:
5492 it wasn't before) as does the pkcs12 application.
5495 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5496 perror when PEM_read_bio_X509_REQ fails, the error message must
5497 be obtained from the error queue.
5500 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5501 it in ERR_remove_state if appropriate, and change ERR_get_state
5502 accordingly to avoid race conditions (this is necessary because
5503 thread_hash is no longer constant once set).
5506 *) Bugfix for linux-elf makefile.one.
5509 *) RSA_get_default_method() will now cause a default
5510 RSA_METHOD to be chosen if one doesn't exist already.
5511 Previously this was only set during a call to RSA_new()
5512 or RSA_new_method(NULL) meaning it was possible for
5513 RSA_get_default_method() to return NULL.
5516 *) Added native name translation to the existing DSO code
5517 that will convert (if the flag to do so is set) filenames
5518 that are sufficiently small and have no path information
5519 into a canonical native form. Eg. "blah" converted to
5520 "libblah.so" or "blah.dll" etc.
5523 *) New function ERR_error_string_n(e, buf, len) which is like
5524 ERR_error_string(e, buf), but writes at most 'len' bytes
5525 including the 0 terminator. For ERR_error_string_n, 'buf'
5527 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5529 *) CONF library reworked to become more general. A new CONF
5530 configuration file reader "class" is implemented as well as a
5531 new functions (NCONF_*, for "New CONF") to handle it. The now
5532 old CONF_* functions are still there, but are reimplemented to
5533 work in terms of the new functions. Also, a set of functions
5534 to handle the internal storage of the configuration data is
5535 provided to make it easier to write new configuration file
5536 reader "classes" (I can definitely see something reading a
5537 configuration file in XML format, for example), called _CONF_*,
5538 or "the configuration storage API"...
5540 The new configuration file reading functions are:
5542 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5543 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5545 NCONF_default, NCONF_WIN32
5547 NCONF_dump_fp, NCONF_dump_bio
5549 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5550 NCONF_new creates a new CONF object. This works in the same way
5551 as other interfaces in OpenSSL, like the BIO interface.
5552 NCONF_dump_* dump the internal storage of the configuration file,
5553 which is useful for debugging. All other functions take the same
5554 arguments as the old CONF_* functions wth the exception of the
5555 first that must be a `CONF *' instead of a `LHASH *'.
5557 To make it easer to use the new classes with the old CONF_* functions,
5558 the function CONF_set_default_method is provided.
5561 *) Add '-tls1' option to 'openssl ciphers', which was already
5562 mentioned in the documentation but had not been implemented.
5563 (This option is not yet really useful because even the additional
5564 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5567 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5568 OpenSSL-based applications) load shared libraries and bind to
5569 them in a portable way.
5570 [Geoff Thorpe, with contributions from Richard Levitte]
5572 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5574 *) Make sure _lrotl and _lrotr are only used with MSVC.
5576 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5577 (the default implementation of RAND_status).
5579 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5580 to '-clrext' (= clear extensions), as intended and documented.
5581 [Bodo Moeller; inconsistency pointed out by Michael Attili
5584 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5585 was larger than the MD block size.
5586 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5588 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5589 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5590 using the passed key: if the passed key was a private key the result
5591 of X509_print(), for example, would be to print out all the private key
5595 *) des_quad_cksum() byte order bug fix.
5596 [Ulf Möller, using the problem description in krb4-0.9.7, where
5597 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5599 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5601 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5603 *) For easily testing in shell scripts whether some command
5604 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5605 returns with exit code 0 iff no command of the given name is available.
5606 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5607 the output goes to stdout and nothing is printed to stderr.
5608 Additional arguments are always ignored.
5610 Since for each cipher there is a command of the same name,
5611 the 'no-cipher' compilation switches can be tested this way.
5613 ('openssl no-XXX' is not able to detect pseudo-commands such
5614 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5617 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5620 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5621 is set; it will be thrown away anyway because each handshake creates
5623 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5624 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5625 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5626 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5629 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5630 'Q' and 'R' lose their special meanings (quit/renegotiate).
5631 This is part of what -quiet does; unlike -quiet, -ign_eof
5632 does not suppress any output.
5635 *) Add compatibility options to the purpose and trust code. The
5636 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5637 accepts a certificate or CA, this was the previous behaviour,
5638 with all the associated security issues.
5640 X509_TRUST_COMPAT is the old trust behaviour: only and
5641 automatically trust self signed roots in certificate store. A
5642 new trust setting X509_TRUST_DEFAULT is used to specify that
5643 a purpose has no associated trust setting and it should instead
5644 use the value in the default purpose.
5647 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5648 and fix a memory leak.
5651 *) In util/mkerr.pl (which implements 'make errors'), preserve
5652 reason strings from the previous version of the .c file, as
5653 the default to have only downcase letters (and digits) in
5654 automatically generated reasons codes is not always appropriate.
5657 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5658 using strerror. Previously, ERR_reason_error_string() returned
5659 library names as reason strings for SYSerr; but SYSerr is a special
5660 case where small numbers are errno values, not library numbers.
5663 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5664 converts DSA parameters into DH parameters. (When creating parameters,
5665 DSA_generate_parameters is used.)
5668 *) Include 'length' (recommended exponent length) in C code generated
5669 by 'openssl dhparam -C'.
5672 *) The second argument to set_label in perlasm was already being used
5673 so couldn't be used as a "file scope" flag. Moved to third argument
5677 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5678 instead of RAND_bytes for encryption IVs and salts.
5681 *) Include RAND_status() into RAND_METHOD instead of implementing
5682 it only for md_rand.c Otherwise replacing the PRNG by calling
5683 RAND_set_rand_method would be impossible.
5686 *) Don't let DSA_generate_key() enter an infinite loop if the random
5687 number generation fails.
5690 *) New 'rand' application for creating pseudo-random output.
5693 *) Added configuration support for Linux/IA64
5694 [Rolf Haberrecker <rolf@suse.de>]
5696 *) Assembler module support for Mingw32.
5699 *) Shared library support for HPUX (in shlib/).
5700 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5702 *) Shared library support for Solaris gcc.
5703 [Lutz Behnke <behnke@trustcenter.de>]
5705 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5707 *) PKCS7_encrypt() was adding text MIME headers twice because they
5708 were added manually and by SMIME_crlf_copy().
5711 *) In bntest.c don't call BN_rand with zero bits argument.
5712 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5714 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5715 case was implemented. This caused BN_div_recp() to fail occasionally.
5718 *) Add an optional second argument to the set_label() in the perl
5719 assembly language builder. If this argument exists and is set
5720 to 1 it signals that the assembler should use a symbol whose
5721 scope is the entire file, not just the current function. This
5722 is needed with MASM which uses the format label:: for this scope.
5723 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5725 *) Change the ASN1 types so they are typedefs by default. Before
5726 almost all types were #define'd to ASN1_STRING which was causing
5727 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5731 *) Change names of new functions to the new get1/get0 naming
5732 convention: After 'get1', the caller owns a reference count
5733 and has to call ..._free; 'get0' returns a pointer to some
5734 data structure without incrementing reference counters.
5735 (Some of the existing 'get' functions increment a reference
5736 counter, some don't.)
5737 Similarly, 'set1' and 'add1' functions increase reference
5738 counters or duplicate objects.
5741 *) Allow for the possibility of temp RSA key generation failure:
5742 the code used to assume it always worked and crashed on failure.
5745 *) Fix potential buffer overrun problem in BIO_printf().
5746 [Ulf Möller, using public domain code by Patrick Powell; problem
5747 pointed out by David Sacerdote <das33@cornell.edu>]
5749 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5750 RAND_egd() and RAND_status(). In the command line application,
5751 the EGD socket can be specified like a seed file using RANDFILE
5755 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5756 Some CAs (e.g. Verisign) distribute certificates in this form.
5759 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5760 list to exclude them. This means that no special compilation option
5761 is needed to use anonymous DH: it just needs to be included in the
5765 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5766 EVP_MD_type. The old functionality is available in a new macro called
5767 EVP_MD_md(). Change code that uses it and update docs.
5770 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5771 where the 'void *' argument is replaced by a function pointer argument.
5772 Previously 'void *' was abused to point to functions, which works on
5773 many platforms, but is not correct. As these functions are usually
5774 called by macros defined in OpenSSL header files, most source code
5775 should work without changes.
5778 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5779 sections with information on -D... compiler switches used for
5780 compiling the library so that applications can see them. To enable
5781 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5782 must be defined. E.g.,
5783 #define OPENSSL_ALGORITHM_DEFINES
5784 #include <openssl/opensslconf.h>
5785 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5786 [Richard Levitte, Ulf and Bodo Möller]
5788 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5792 *) Change the 'other' type in certificate aux info to a STACK_OF
5793 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5794 the required ASN1 format: arbitrary types determined by an OID.
5797 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5798 argument to 'req'. This is not because the function is newer or
5799 better than others it just uses the work 'NEW' in the certificate
5800 request header lines. Some software needs this.
5803 *) Reorganise password command line arguments: now passwords can be
5804 obtained from various sources. Delete the PEM_cb function and make
5805 it the default behaviour: i.e. if the callback is NULL and the
5806 usrdata argument is not NULL interpret it as a null terminated pass
5807 phrase. If usrdata and the callback are NULL then the pass phrase
5808 is prompted for as usual.
5811 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5812 the support is automatically enabled. The resulting binaries will
5813 autodetect the card and use it if present.
5814 [Ben Laurie and Compaq Inc.]
5816 *) Work around for Netscape hang bug. This sends certificate request
5817 and server done in one record. Since this is perfectly legal in the
5818 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5819 the bugs/SSLv3 entry for more info.
5822 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5825 *) Add -rand argument to smime and pkcs12 applications and read/write
5829 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5832 *) Add command line password options to the remaining applications.
5835 *) Bug fix for BN_div_recp() for numerators with an even number of
5839 *) More tests in bntest.c, and changed test_bn output.
5842 *) ./config recognizes MacOS X now.
5845 *) Bug fix for BN_div() when the first words of num and divsor are
5846 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5849 *) Add support for various broken PKCS#8 formats, and command line
5850 options to produce them.
5853 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5854 get temporary BIGNUMs from a BN_CTX.
5857 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5861 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5862 include a #define from the old name to the new. The original intent
5863 was that statically linked binaries could for example just call
5864 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5865 link with digests. This never worked becayse SSLeay_add_all_digests()
5866 and SSLeay_add_all_ciphers() were in the same source file so calling
5867 one would link with the other. They are now in separate source files.
5870 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5873 *) Use a less unusual form of the Miller-Rabin primality test (it used
5874 a binary algorithm for exponentiation integrated into the Miller-Rabin
5875 loop, our standard modexp algorithms are faster).
5878 *) Support for the EBCDIC character set completed.
5879 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5881 *) Source code cleanups: use const where appropriate, eliminate casts,
5882 use void * instead of char * in lhash.
5885 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5886 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5887 this the server could overwrite ephemeral keys that the client
5891 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5892 using 50 iterations of the Rabin-Miller test.
5894 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5895 iterations of the Rabin-Miller test as required by the appendix
5896 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5897 As BN_is_prime_fasttest includes trial division, DSA parameter
5898 generation becomes much faster.
5900 This implies a change for the callback functions in DSA_is_prime
5901 and DSA_generate_parameters: The callback function is called once
5902 for each positive witness in the Rabin-Miller test, not just
5903 occasionally in the inner loop; and the parameters to the
5904 callback function now provide an iteration count for the outer
5905 loop rather than for the current invocation of the inner loop.
5906 DSA_generate_parameters additionally can call the callback
5907 function with an 'iteration count' of -1, meaning that a
5908 candidate has passed the trial division test (when q is generated
5909 from an application-provided seed, trial division is skipped).
5912 *) New function BN_is_prime_fasttest that optionally does trial
5913 division before starting the Rabin-Miller test and has
5914 an additional BN_CTX * argument (whereas BN_is_prime always
5915 has to allocate at least one BN_CTX).
5916 'callback(1, -1, cb_arg)' is called when a number has passed the
5917 trial division stage.
5920 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5924 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5927 *) New function BN_pseudo_rand().
5930 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5931 bignum version of BN_from_montgomery() with the working code from
5932 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5936 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5937 made it impossible to use the same SSL_SESSION data structure in
5938 SSL2 clients in multiple threads.
5941 *) The return value of RAND_load_file() no longer counts bytes obtained
5942 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5943 to seed the PRNG (previously an explicit byte count was required).
5944 [Ulf Möller, Bodo Möller]
5946 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5947 used (char *) instead of (void *) and had casts all over the place.
5950 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5953 *) Retain source code compatibility for BN_prime_checks macro:
5954 BN_is_prime(..., BN_prime_checks, ...) now uses
5955 BN_prime_checks_for_size to determine the appropriate number of
5956 Rabin-Miller iterations.
5959 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5960 DH_CHECK_P_NOT_SAFE_PRIME.
5961 (Check if this is true? OpenPGP calls them "strong".)
5964 *) Merge the functionality of "dh" and "gendh" programs into a new program
5965 "dhparam". The old programs are retained for now but will handle DH keys
5966 (instead of parameters) in future.
5969 *) Make the ciphers, s_server and s_client programs check the return values
5970 when a new cipher list is set.
5973 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5974 ciphers. Before when the 56bit ciphers were enabled the sorting was
5977 The syntax for the cipher sorting has been extended to support sorting by
5978 cipher-strength (using the strength_bits hard coded in the tables).
5979 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5981 Fix a bug in the cipher-command parser: when supplying a cipher command
5982 string with an "undefined" symbol (neither command nor alphanumeric
5983 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5984 an error is flagged.
5986 Due to the strength-sorting extension, the code of the
5987 ssl_create_cipher_list() function was completely rearranged. I hope that
5988 the readability was also increased :-)
5989 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5991 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5992 for the first serial number and places 2 in the serial number file. This
5993 avoids problems when the root CA is created with serial number zero and
5994 the first user certificate has the same issuer name and serial number
5998 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5999 the new code. Add documentation for this stuff.
6002 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6003 X509_*() to X509at_*() on the grounds that they don't handle X509
6004 structures and behave in an analagous way to the X509v3 functions:
6005 they shouldn't be called directly but wrapper functions should be used
6008 So we also now have some wrapper functions that call the X509at functions
6009 when passed certificate requests. (TO DO: similar things can be done with
6010 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6011 things. Some of these need some d2i or i2d and print functionality
6012 because they handle more complex structures.)
6015 *) Add missing #ifndefs that caused missing symbols when building libssl
6016 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6017 NO_RSA in ssl/s2*.c.
6018 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6020 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6021 has a return value which indicates the quality of the random data
6022 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6023 error queue. New function RAND_pseudo_bytes() generates output that is
6024 guaranteed to be unique but not unpredictable. RAND_add is like
6025 RAND_seed, but takes an extra argument for an entropy estimate
6026 (RAND_seed always assumes full entropy).
6029 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6030 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6031 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6032 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6033 false-positive rate of at most 2^-80 for random input.
6036 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6039 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6040 in the 0.9.5 release), this returns the chain
6041 from an X509_CTX structure with a dup of the stack and all
6042 the X509 reference counts upped: so the stack will exist
6043 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6046 Also make SSL_SESSION_print() print out the verify return
6050 *) Add manpage for the pkcs12 command. Also change the default
6051 behaviour so MAC iteration counts are used unless the new
6052 -nomaciter option is used. This improves file security and
6053 only older versions of MSIE (4.0 for example) need it.
6056 *) Honor the no-xxx Configure options when creating .DEF files.
6059 *) Add PKCS#10 attributes to field table: challengePassword,
6060 unstructuredName and unstructuredAddress. These are taken from
6061 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6062 international characters are used.
6064 More changes to X509_ATTRIBUTE code: allow the setting of types
6065 based on strings. Remove the 'loc' parameter when adding
6066 attributes because these will be a SET OF encoding which is sorted
6070 *) Initial changes to the 'req' utility to allow request generation
6071 automation. This will allow an application to just generate a template
6072 file containing all the field values and have req construct the
6075 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6076 used all over the place including certificate requests and PKCS#7
6077 structures. They are currently handled manually where necessary with
6078 some primitive wrappers for PKCS#7. The new functions behave in a
6079 manner analogous to the X509 extension functions: they allow
6080 attributes to be looked up by NID and added.
6082 Later something similar to the X509V3 code would be desirable to
6083 automatically handle the encoding, decoding and printing of the
6084 more complex types. The string types like challengePassword can
6085 be handled by the string table functions.
6087 Also modified the multi byte string table handling. Now there is
6088 a 'global mask' which masks out certain types. The table itself
6089 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6090 is useful when for example there is only one permissible type
6091 (as in countryName) and using the mask might result in no valid
6095 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6096 SSL_get_peer_finished to allow applications to obtain the latest
6097 Finished messages sent to the peer or expected from the peer,
6098 respectively. (SSL_get_peer_finished is usually the Finished message
6099 actually received from the peer, otherwise the protocol will be aborted.)
6101 As the Finished message are message digests of the complete handshake
6102 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6103 be used for external authentication procedures when the authentication
6104 provided by SSL/TLS is not desired or is not enough.
6107 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6108 the host supports BWX extension and if Compaq C is present on the
6109 $PATH. Just exploiting of the BWX extension results in 20-30%
6110 performance kick for some algorithms, e.g. DES and RC4 to mention
6111 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6115 *) Add support for MS "fast SGC". This is arguably a violation of the
6116 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6117 weak crypto and after checking the certificate is SGC a second one
6118 with strong crypto. MS SGC stops the first handshake after receiving
6119 the server certificate message and sends a second client hello. Since
6120 a server will typically do all the time consuming operations before
6121 expecting any further messages from the client (server key exchange
6122 is the most expensive) there is little difference between the two.
6124 To get OpenSSL to support MS SGC we have to permit a second client
6125 hello message after we have sent server done. In addition we have to
6126 reset the MAC if we do get this second client hello.
6129 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6130 if a DER encoded private key is RSA or DSA traditional format. Changed
6131 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6132 format DER encoded private key. Newer code should use PKCS#8 format which
6133 has the key type encoded in the ASN1 structure. Added DER private key
6134 support to pkcs8 application.
6137 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6138 ciphersuites has been selected (as required by the SSL 3/TLS 1
6139 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6140 is set, we interpret this as a request to violate the specification
6141 (the worst that can happen is a handshake failure, and 'correct'
6142 behaviour would result in a handshake failure anyway).
6145 *) In SSL_CTX_add_session, take into account that there might be multiple
6146 SSL_SESSION structures with the same session ID (e.g. when two threads
6147 concurrently obtain them from an external cache).
6148 The internal cache can handle only one SSL_SESSION with a given ID,
6149 so if there's a conflict, we now throw out the old one to achieve
6153 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6154 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6155 some routines that use cipher OIDs: some ciphers do not have OIDs
6156 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6160 *) Simplify the trust setting structure and code. Now we just have
6161 two sequences of OIDs for trusted and rejected settings. These will
6162 typically have values the same as the extended key usage extension
6163 and any application specific purposes.
6165 The trust checking code now has a default behaviour: it will just
6166 check for an object with the same NID as the passed id. Functions can
6167 be provided to override either the default behaviour or the behaviour
6168 for a given id. SSL client, server and email already have functions
6169 in place for compatibility: they check the NID and also return "trusted"
6170 if the certificate is self signed.
6173 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6174 traditional format into an EVP_PKEY structure.
6177 *) Add a password callback function PEM_cb() which either prompts for
6178 a password if usr_data is NULL or otherwise assumes it is a null
6179 terminated password. Allow passwords to be passed on command line
6180 environment or config files in a few more utilities.
6183 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6184 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6185 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6186 Update documentation.
6189 *) Support for ASN1 "NULL" type. This could be handled before by using
6190 ASN1_TYPE but there wasn't any function that would try to read a NULL
6191 and produce an error if it couldn't. For compatibility we also have
6192 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6193 don't allocate anything because they don't need to.
6196 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6198 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6200 *) Rebuild of the memory allocation routines used by OpenSSL code and
6201 possibly others as well. The purpose is to make an interface that
6202 provide hooks so anyone can build a separate set of allocation and
6203 deallocation routines to be used by OpenSSL, for example memory
6204 pool implementations, or something else, which was previously hard
6205 since Malloc(), Realloc() and Free() were defined as macros having
6206 the values malloc, realloc and free, respectively (except for Win32
6207 compilations). The same is provided for memory debugging code.
6208 OpenSSL already comes with functionality to find memory leaks, but
6209 this gives people a chance to debug other memory problems.
6211 With these changes, a new set of functions and macros have appeared:
6213 CRYPTO_set_mem_debug_functions() [F]
6214 CRYPTO_get_mem_debug_functions() [F]
6215 CRYPTO_dbg_set_options() [F]
6216 CRYPTO_dbg_get_options() [F]
6217 CRYPTO_malloc_debug_init() [M]
6219 The memory debug functions are NULL by default, unless the library
6220 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6221 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6222 gives the standard debugging functions that come with OpenSSL) or
6223 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6224 provided by the library user) must be used. When the standard
6225 debugging functions are used, CRYPTO_dbg_set_options can be used to
6226 request additional information:
6227 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6228 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6230 Also, things like CRYPTO_set_mem_functions will always give the
6231 expected result (the new set of functions is used for allocation
6232 and deallocation) at all times, regardless of platform and compiler
6235 To finish it up, some functions that were never use in any other
6236 way than through macros have a new API and new semantic:
6239 CRYPTO_dbg_realloc()
6242 All macros of value have retained their old syntax.
6243 [Richard Levitte and Bodo Moeller]
6245 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6246 ordering of SMIMECapabilities wasn't in "strength order" and there
6247 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6251 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6252 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6253 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6255 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6256 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6257 functionality to handle multipart/signed properly) and a utility
6258 called 'smime' to call all this stuff. This is based on code I
6259 originally wrote for Celo who have kindly allowed it to be
6260 included in OpenSSL.
6263 *) Add variants des_set_key_checked and des_set_key_unchecked of
6264 des_set_key (aka des_key_sched). Global variable des_check_key
6265 decides which of these is called by des_set_key; this way
6266 des_check_key behaves as it always did, but applications and
6267 the library itself, which was buggy for des_check_key == 1,
6268 have a cleaner way to pick the version they need.
6271 *) New function PKCS12_newpass() which changes the password of a
6275 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6276 dynamic mix. In both cases the ids can be used as an index into the
6277 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6278 functions so they accept a list of the field values and the
6279 application doesn't need to directly manipulate the X509_TRUST
6283 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6287 *) Modify the way the V3 extension code looks up extensions. This now
6288 works in a similar way to the object code: we have some "standard"
6289 extensions in a static table which is searched with OBJ_bsearch()
6290 and the application can add dynamic ones if needed. The file
6291 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6292 updated whenever a new extension is added to the core code and kept
6293 in ext_nid order. There is a simple program 'tabtest.c' which checks
6294 this. New extensions are not added too often so this file can readily
6295 be maintained manually.
6297 There are two big advantages in doing things this way. The extensions
6298 can be looked up immediately and no longer need to be "added" using
6299 X509V3_add_standard_extensions(): this function now does nothing.
6300 [Side note: I get *lots* of email saying the extension code doesn't
6301 work because people forget to call this function]
6302 Also no dynamic allocation is done unless new extensions are added:
6303 so if we don't add custom extensions there is no need to call
6304 X509V3_EXT_cleanup().
6307 *) Modify enc utility's salting as follows: make salting the default. Add a
6308 magic header, so unsalted files fail gracefully instead of just decrypting
6309 to garbage. This is because not salting is a big security hole, so people
6310 should be discouraged from doing it.
6313 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6314 digest to be passed on the command line but it only used this
6315 parameter when signing a certificate. Modified so all relevant
6316 operations are affected by the digest parameter including the
6317 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6318 DSA key was used because it didn't fix the digest.
6321 *) Initial certificate chain verify code. Currently tests the untrusted
6322 certificates for consistency with the verify purpose (which is set
6323 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6325 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6326 this is because it will reject chains with invalid extensions whereas
6327 every previous version of OpenSSL and SSLeay made no checks at all.
6329 Trust code: checks the root CA for the relevant trust settings. Trust
6330 settings have an initial value consistent with the verify purpose: e.g.
6331 if the verify purpose is for SSL client use it expects the CA to be
6332 trusted for SSL client use. However the default value can be changed to
6333 permit custom trust settings: one example of this would be to only trust
6334 certificates from a specific "secure" set of CAs.
6336 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6337 which should be used for version portability: especially since the
6338 verify structure is likely to change more often now.
6340 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6341 to set them. If not set then assume SSL clients will verify SSL servers
6344 Two new options to the verify program: -untrusted allows a set of
6345 untrusted certificates to be passed in and -purpose which sets the
6346 intended purpose of the certificate. If a purpose is set then the
6347 new chain verify code is used to check extension consistency.
6350 *) Support for the authority information access extension.
6353 *) Modify RSA and DSA PEM read routines to transparently handle
6354 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6355 public keys in a format compatible with certificate
6356 SubjectPublicKeyInfo structures. Unfortunately there were already
6357 functions called *_PublicKey_* which used various odd formats so
6358 these are retained for compatibility: however the DSA variants were
6359 never in a public release so they have been deleted. Changed dsa/rsa
6360 utilities to handle the new format: note no releases ever handled public
6361 keys so we should be OK.
6363 The primary motivation for this change is to avoid the same fiasco
6364 that dogs private keys: there are several incompatible private key
6365 formats some of which are standard and some OpenSSL specific and
6366 require various evil hacks to allow partial transparent handling and
6367 even then it doesn't work with DER formats. Given the option anything
6368 other than PKCS#8 should be dumped: but the other formats have to
6369 stay in the name of compatibility.
6371 With public keys and the benefit of hindsight one standard format
6372 is used which works with EVP_PKEY, RSA or DSA structures: though
6373 it clearly returns an error if you try to read the wrong kind of key.
6375 Added a -pubkey option to the 'x509' utility to output the public key.
6376 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6377 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6378 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6379 that do the same as the EVP_PKEY_assign_*() except they up the
6380 reference count of the added key (they don't "swallow" the
6384 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6385 CRLs would fail if the file contained no certificates or no CRLs:
6386 added a new function to read in both types and return the number
6387 read: this means that if none are read it will be an error. The
6388 DER versions of the certificate and CRL reader would always fail
6389 because it isn't possible to mix certificates and CRLs in DER format
6390 without choking one or the other routine. Changed this to just read
6391 a certificate: this is the best we can do. Also modified the code
6392 in apps/verify.c to take notice of return codes: it was previously
6393 attempting to read in certificates from NULL pointers and ignoring
6394 any errors: this is one reason why the cert and CRL reader seemed
6395 to work. It doesn't check return codes from the default certificate
6396 routines: these may well fail if the certificates aren't installed.
6399 *) Code to support otherName option in GeneralName.
6402 *) First update to verify code. Change the verify utility
6403 so it warns if it is passed a self signed certificate:
6404 for consistency with the normal behaviour. X509_verify
6405 has been modified to it will now verify a self signed
6406 certificate if *exactly* the same certificate appears
6407 in the store: it was previously impossible to trust a
6408 single self signed certificate. This means that:
6409 openssl verify ss.pem
6410 now gives a warning about a self signed certificate but
6411 openssl verify -CAfile ss.pem ss.pem
6415 *) For servers, store verify_result in SSL_SESSION data structure
6416 (and add it to external session representation).
6417 This is needed when client certificate verifications fails,
6418 but an application-provided verification callback (set by
6419 SSL_CTX_set_cert_verify_callback) allows accepting the session
6420 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6421 but returns 1): When the session is reused, we have to set
6422 ssl->verify_result to the appropriate error code to avoid
6424 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6426 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6427 case in PKCS7_dataInit() where the signed PKCS7 structure
6428 didn't contain any existing data because it was being created.
6429 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6431 *) Add a salt to the key derivation routines in enc.c. This
6432 forms the first 8 bytes of the encrypted file. Also add a
6433 -S option to allow a salt to be input on the command line.
6436 *) New function X509_cmp(). Oddly enough there wasn't a function
6437 to compare two certificates. We do this by working out the SHA1
6438 hash and comparing that. X509_cmp() will be needed by the trust
6442 *) SSL_get1_session() is like SSL_get_session(), but increments
6443 the reference count in the SSL_SESSION returned.
6444 [Geoff Thorpe <geoff@eu.c2.net>]
6446 *) Fix for 'req': it was adding a null to request attributes.
6447 Also change the X509_LOOKUP and X509_INFO code to handle
6448 certificate auxiliary information.
6451 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6455 *) Add the possibility to add extra information to the memory leak
6456 detecting output, to form tracebacks, showing from where each
6457 allocation was originated: CRYPTO_push_info("constant string") adds
6458 the string plus current file name and line number to a per-thread
6459 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6460 is like calling CYRPTO_pop_info() until the stack is empty.
6461 Also updated memory leak detection code to be multi-thread-safe.
6464 *) Add options -text and -noout to pkcs7 utility and delete the
6465 encryption options which never did anything. Update docs.
6468 *) Add options to some of the utilities to allow the pass phrase
6469 to be included on either the command line (not recommended on
6470 OSes like Unix) or read from the environment. Update the
6471 manpages and fix a few bugs.
6474 *) Add a few manpages for some of the openssl commands.
6477 *) Fix the -revoke option in ca. It was freeing up memory twice,
6478 leaking and not finding already revoked certificates.
6481 *) Extensive changes to support certificate auxiliary information.
6482 This involves the use of X509_CERT_AUX structure and X509_AUX
6483 functions. An X509_AUX function such as PEM_read_X509_AUX()
6484 can still read in a certificate file in the usual way but it
6485 will also read in any additional "auxiliary information". By
6486 doing things this way a fair degree of compatibility can be
6487 retained: existing certificates can have this information added
6488 using the new 'x509' options.
6490 Current auxiliary information includes an "alias" and some trust
6491 settings. The trust settings will ultimately be used in enhanced
6492 certificate chain verification routines: currently a certificate
6493 can only be trusted if it is self signed and then it is trusted
6497 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6498 The problem was that one of the replacement routines had not been working
6499 since SSLeay releases. For now the offending routine has been replaced
6500 with non-optimised assembler. Even so, this now gives around 95%
6501 performance improvement for 1024 bit RSA signs.
6504 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6505 handling. Most clients have the effective key size in bits equal to
6506 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6507 A few however don't do this and instead use the size of the decrypted key
6508 to determine the RC2 key length and the AlgorithmIdentifier to determine
6509 the effective key length. In this case the effective key length can still
6510 be 40 bits but the key length can be 168 bits for example. This is fixed
6511 by manually forcing an RC2 key into the EVP_PKEY structure because the
6512 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6513 the key length and effective key length are equal.
6516 *) Add a bunch of functions that should simplify the creation of
6517 X509_NAME structures. Now you should be able to do:
6518 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6519 and have it automatically work out the correct field type and fill in
6520 the structures. The more adventurous can try:
6521 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6522 and it will (hopefully) work out the correct multibyte encoding.
6525 *) Change the 'req' utility to use the new field handling and multibyte
6526 copy routines. Before the DN field creation was handled in an ad hoc
6527 way in req, ca, and x509 which was rather broken and didn't support
6528 BMPStrings or UTF8Strings. Since some software doesn't implement
6529 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6530 using the dirstring_type option. See the new comment in the default
6531 openssl.cnf for more info.
6534 *) Make crypto/rand/md_rand.c more robust:
6535 - Assure unique random numbers after fork().
6536 - Make sure that concurrent threads access the global counter and
6537 md serializably so that we never lose entropy in them
6538 or use exactly the same state in multiple threads.
6539 Access to the large state is not always serializable because
6540 the additional locking could be a performance killer, and
6541 md should be large enough anyway.
6544 *) New file apps/app_rand.c with commonly needed functionality
6545 for handling the random seed file.
6547 Use the random seed file in some applications that previously did not:
6549 dsaparam -genkey (which also ignored its '-rand' option),
6552 x509 (when signing).
6553 Except on systems with /dev/urandom, it is crucial to have a random
6554 seed file at least for key creation, DSA signing, and for DH exchanges;
6555 for RSA signatures we could do without one.
6557 gendh and gendsa (unlike genrsa) used to read only the first byte
6558 of each file listed in the '-rand' option. The function as previously
6559 found in genrsa is now in app_rand.c and is used by all programs
6560 that support '-rand'.
6563 *) In RAND_write_file, use mode 0600 for creating files;
6564 don't just chmod when it may be too late.
6567 *) Report an error from X509_STORE_load_locations
6568 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6571 *) New function ASN1_mbstring_copy() this copies a string in either
6572 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6573 into an ASN1_STRING type. A mask of permissible types is passed
6574 and it chooses the "minimal" type to use or an error if not type
6578 *) Add function equivalents to the various macros in asn1.h. The old
6579 macros are retained with an M_ prefix. Code inside the library can
6580 use the M_ macros. External code (including the openssl utility)
6581 should *NOT* in order to be "shared library friendly".
6584 *) Add various functions that can check a certificate's extensions
6585 to see if it usable for various purposes such as SSL client,
6586 server or S/MIME and CAs of these types. This is currently
6587 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6588 verification. Also added a -purpose flag to x509 utility to
6589 print out all the purposes.
6592 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6596 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6597 for, obtain and decode and extension and obtain its critical flag.
6598 This allows all the necessary extension code to be handled in a
6599 single function call.
6602 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6603 platforms. See crypto/rc4/rc4_enc.c for further details.
6606 *) New -noout option to asn1parse. This causes no output to be produced
6607 its main use is when combined with -strparse and -out to extract data
6608 from a file (which may not be in ASN.1 format).
6611 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6612 when producing the local key id.
6613 [Richard Levitte <levitte@stacken.kth.se>]
6615 *) New option -dhparam in s_server. This allows a DH parameter file to be
6616 stated explicitly. If it is not stated then it tries the first server
6617 certificate file. The previous behaviour hard coded the filename
6621 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6622 a public key to be input or output. For example:
6623 openssl rsa -in key.pem -pubout -out pubkey.pem
6624 Also added necessary DSA public key functions to handle this.
6627 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6628 in the message. This was handled by allowing
6629 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6630 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6632 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6633 to the end of the strings whereas this didn't. This would cause problems
6634 if strings read with d2i_ASN1_bytes() were later modified.
6635 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6637 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6638 data and it contains EOF it will end up returning an error. This is
6639 caused by input 46 bytes long. The cause is due to the way base64
6640 BIOs find the start of base64 encoded data. They do this by trying a
6641 trial decode on each line until they find one that works. When they
6642 do a flag is set and it starts again knowing it can pass all the
6643 data directly through the decoder. Unfortunately it doesn't reset
6644 the context it uses. This means that if EOF is reached an attempt
6645 is made to pass two EOFs through the context and this causes the
6646 resulting error. This can also cause other problems as well. As is
6647 usual with these problems it takes *ages* to find and the fix is
6648 trivial: move one line.
6649 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6651 *) Ugly workaround to get s_client and s_server working under Windows. The
6652 old code wouldn't work because it needed to select() on sockets and the
6653 tty (for keypresses and to see if data could be written). Win32 only
6654 supports select() on sockets so we select() with a 1s timeout on the
6655 sockets and then see if any characters are waiting to be read, if none
6656 are present then we retry, we also assume we can always write data to
6657 the tty. This isn't nice because the code then blocks until we've
6658 received a complete line of data and it is effectively polling the
6659 keyboard at 1s intervals: however it's quite a bit better than not
6660 working at all :-) A dedicated Windows application might handle this
6661 with an event loop for example.
6664 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6665 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6666 will be called when RSA_sign() and RSA_verify() are used. This is useful
6667 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6668 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6669 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6670 This necessitated the support of an extra signature type NID_md5_sha1
6671 for SSL signatures and modifications to the SSL library to use it instead
6672 of calling RSA_public_decrypt() and RSA_private_encrypt().
6675 *) Add new -verify -CAfile and -CApath options to the crl program, these
6676 will lookup a CRL issuers certificate and verify the signature in a
6677 similar way to the verify program. Tidy up the crl program so it
6678 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6679 less strict. It will now permit CRL extensions even if it is not
6680 a V2 CRL: this will allow it to tolerate some broken CRLs.
6683 *) Initialize all non-automatic variables each time one of the openssl
6684 sub-programs is started (this is necessary as they may be started
6685 multiple times from the "OpenSSL>" prompt).
6686 [Lennart Bang, Bodo Moeller]
6688 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6689 removing all other RSA functionality (this is what NO_RSA does). This
6690 is so (for example) those in the US can disable those operations covered
6691 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6695 *) Non-copying interface to BIO pairs.
6696 (still largely untested)
6699 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6700 ASCII string. This was handled independently in various places before.
6703 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6704 UTF8 strings a character at a time.
6707 *) Use client_version from client hello to select the protocol
6708 (s23_srvr.c) and for RSA client key exchange verification
6709 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6712 *) Add various utility functions to handle SPKACs, these were previously
6713 handled by poking round in the structure internals. Added new function
6714 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6715 print, verify and generate SPKACs. Based on an original idea from
6716 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6719 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6722 *) Allow the config file extension section to be overwritten on the
6723 command line. Based on an original idea from Massimiliano Pala
6724 <madwolf@comune.modena.it>. The new option is called -extensions
6725 and can be applied to ca, req and x509. Also -reqexts to override
6726 the request extensions in req and -crlexts to override the crl extensions
6730 *) Add new feature to the SPKAC handling in ca. Now you can include
6731 the same field multiple times by preceding it by "XXXX." for example:
6734 this is the same syntax as used in the req config file.
6737 *) Allow certificate extensions to be added to certificate requests. These
6738 are specified in a 'req_extensions' option of the req section of the
6739 config file. They can be printed out with the -text option to req but
6740 are otherwise ignored at present.
6743 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6744 data read consists of only the final block it would not decrypted because
6745 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6746 A misplaced 'break' also meant the decrypted final block might not be
6747 copied until the next read.
6750 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6751 a few extra parameters to the DH structure: these will be useful if
6752 for example we want the value of 'q' or implement X9.42 DH.
6755 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6756 provides hooks that allow the default DSA functions or functions on a
6757 "per key" basis to be replaced. This allows hardware acceleration and
6758 hardware key storage to be handled without major modification to the
6759 library. Also added low level modexp hooks and CRYPTO_EX structure and
6760 associated functions.
6763 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6764 as "read only": it can't be written to and the buffer it points to will
6765 not be freed. Reading from a read only BIO is much more efficient than
6766 a normal memory BIO. This was added because there are several times when
6767 an area of memory needs to be read from a BIO. The previous method was
6768 to create a memory BIO and write the data to it, this results in two
6769 copies of the data and an O(n^2) reading algorithm. There is a new
6770 function BIO_new_mem_buf() which creates a read only memory BIO from
6771 an area of memory. Also modified the PKCS#7 routines to use read only
6775 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6776 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6777 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6778 but a retry condition occured while trying to read the rest.
6781 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6782 NID_pkcs7_encrypted by default: this was wrong since this should almost
6783 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6784 the encrypted data type: this is a more sensible place to put it and it
6785 allows the PKCS#12 code to be tidied up that duplicated this
6789 *) Changed obj_dat.pl script so it takes its input and output files on
6790 the command line. This should avoid shell escape redirection problems
6794 *) Initial support for certificate extension requests, these are included
6795 in things like Xenroll certificate requests. Included functions to allow
6796 extensions to be obtained and added.
6799 *) -crlf option to s_client and s_server for sending newlines as
6800 CRLF (as required by many protocols).
6803 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6805 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6806 [Ralf S. Engelschall]
6808 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6809 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6811 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6815 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6816 DH parameters/keys (q is lost during that conversion, but the resulting
6817 DH parameters contain its length).
6819 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6820 much faster than DH_generate_parameters (which creates parameters
6821 where p = 2*q + 1), and also the smaller q makes DH computations
6822 much more efficient (160-bit exponentiation instead of 1024-bit
6823 exponentiation); so this provides a convenient way to support DHE
6824 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6825 utter importance to use
6826 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6828 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6829 when such DH parameters are used, because otherwise small subgroup
6830 attacks may become possible!
6833 *) Avoid memory leak in i2d_DHparams.
6836 *) Allow the -k option to be used more than once in the enc program:
6837 this allows the same encrypted message to be read by multiple recipients.
6840 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6841 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6842 it will always use the numerical form of the OID, even if it has a short
6846 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6847 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6848 otherwise bn_mod_exp was called. In the case of hardware keys for example
6849 no private key components need be present and it might store extra data
6850 in the RSA structure, which cannot be accessed from bn_mod_exp.
6851 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6852 private key operations.
6855 *) Added support for SPARC Linux.
6858 *) pem_password_cb function type incompatibly changed from
6859 typedef int pem_password_cb(char *buf, int size, int rwflag);
6861 ....(char *buf, int size, int rwflag, void *userdata);
6862 so that applications can pass data to their callbacks:
6863 The PEM[_ASN1]_{read,write}... functions and macros now take an
6864 additional void * argument, which is just handed through whenever
6865 the password callback is called.
6866 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6868 New function SSL_CTX_set_default_passwd_cb_userdata.
6870 Compatibility note: As many C implementations push function arguments
6871 onto the stack in reverse order, the new library version is likely to
6872 interoperate with programs that have been compiled with the old
6873 pem_password_cb definition (PEM_whatever takes some data that
6874 happens to be on the stack as its last argument, and the callback
6875 just ignores this garbage); but there is no guarantee whatsoever that
6878 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6879 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6880 problems not only on Windows, but also on some Unix platforms.
6881 To avoid problematic command lines, these definitions are now in an
6882 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6883 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6886 *) MIPS III/IV assembler module is reimplemented.
6889 *) More DES library cleanups: remove references to srand/rand and
6890 delete an unused file.
6893 *) Add support for the the free Netwide assembler (NASM) under Win32,
6894 since not many people have MASM (ml) and it can be hard to obtain.
6895 This is currently experimental but it seems to work OK and pass all
6896 the tests. Check out INSTALL.W32 for info.
6899 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6900 without temporary keys kept an extra copy of the server key,
6901 and connections with temporary keys did not free everything in case
6905 *) New function RSA_check_key and new openssl rsa option -check
6906 for verifying the consistency of RSA keys.
6907 [Ulf Moeller, Bodo Moeller]
6909 *) Various changes to make Win32 compile work:
6910 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6911 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6912 comparison" warnings.
6913 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6916 *) Add a debugging option to PKCS#5 v2 key generation function: when
6917 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6918 derived keys are printed to stderr.
6921 *) Copy the flags in ASN1_STRING_dup().
6922 [Roman E. Pavlov <pre@mo.msk.ru>]
6924 *) The x509 application mishandled signing requests containing DSA
6925 keys when the signing key was also DSA and the parameters didn't match.
6927 It was supposed to omit the parameters when they matched the signing key:
6928 the verifying software was then supposed to automatically use the CA's
6929 parameters if they were absent from the end user certificate.
6931 Omitting parameters is no longer recommended. The test was also
6932 the wrong way round! This was probably due to unusual behaviour in
6933 EVP_cmp_parameters() which returns 1 if the parameters match.
6934 This meant that parameters were omitted when they *didn't* match and
6935 the certificate was useless. Certificates signed with 'ca' didn't have
6937 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6939 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6940 The interface is as follows:
6941 Applications can use
6942 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6943 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6944 "off" is now the default.
6945 The library internally uses
6946 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6947 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6948 to disable memory-checking temporarily.
6950 Some inconsistent states that previously were possible (and were
6951 even the default) are now avoided.
6953 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6954 with each memory chunk allocated; this is occasionally more helpful
6955 than just having a counter.
6957 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6959 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6963 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6964 which largely parallels "options", but is for changing API behaviour,
6965 whereas "options" are about protocol behaviour.
6966 Initial "mode" flags are:
6968 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6969 a single record has been written.
6970 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6971 retries use the same buffer location.
6972 (But all of the contents must be
6976 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6979 *) Fix problems with no-hmac etc.
6980 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6982 *) New functions RSA_get_default_method(), RSA_set_method() and
6983 RSA_get_method(). These allows replacement of RSA_METHODs without having
6984 to mess around with the internals of an RSA structure.
6987 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6988 Also really enable memory leak checks in openssl.c and in some
6990 [Chad C. Mulligan, Bodo Moeller]
6992 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6993 up the length of negative integers. This has now been simplified to just
6994 store the length when it is first determined and use it later, rather
6995 than trying to keep track of where data is copied and updating it to
6997 [Steve Henson, reported by Brien Wheeler
6998 <bwheeler@authentica-security.com>]
7000 *) Add a new function PKCS7_signatureVerify. This allows the verification
7001 of a PKCS#7 signature but with the signing certificate passed to the
7002 function itself. This contrasts with PKCS7_dataVerify which assumes the
7003 certificate is present in the PKCS#7 structure. This isn't always the
7004 case: certificates can be omitted from a PKCS#7 structure and be
7005 distributed by "out of band" means (such as a certificate database).
7008 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7009 function prototypes in pem.h, also change util/mkdef.pl to add the
7010 necessary function names.
7013 *) mk1mf.pl (used by Windows builds) did not properly read the
7014 options set by Configure in the top level Makefile, and Configure
7015 was not even able to write more than one option correctly.
7016 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7019 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7020 file to be loaded from a BIO or FILE pointer. The BIO version will
7021 for example allow memory BIOs to contain config info.
7024 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7025 Whoever hopes to achieve shared-library compatibility across versions
7026 must use this, not the compile-time macro.
7027 (Exercise 0.9.4: Which is the minimum library version required by
7029 Note: All this applies only to multi-threaded programs, others don't
7033 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7034 through a BIO pair triggered the default case, i.e.
7035 SSLerr(...,SSL_R_UNKNOWN_STATE).
7038 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7039 can use the SSL library even if none of the specific BIOs is
7043 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7044 for the encoded length.
7045 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7047 *) Add initial documentation of the X509V3 functions.
7050 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7051 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7052 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7053 secure PKCS#8 private key format with a high iteration count.
7056 *) Fix determination of Perl interpreter: A perl or perl5
7057 _directory_ in $PATH was also accepted as the interpreter.
7058 [Ralf S. Engelschall]
7060 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7061 wrong with it but it was very old and did things like calling
7062 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7066 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7067 to use the new extension code.
7070 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7071 with macros. This should make it easier to change their form, add extra
7072 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7076 *) Add to configuration table a new entry that can specify an alternative
7077 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7078 according to Mark Crispin <MRC@Panda.COM>.
7082 *) DES CBC did not update the IV. Weird.
7085 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7086 Changing the behaviour of the former might break existing programs --
7087 where IV updating is needed, des_ncbc_encrypt can be used.
7090 *) When bntest is run from "make test" it drives bc to check its
7091 calculations, as well as internally checking them. If an internal check
7092 fails, it needs to cause bc to give a non-zero result or make test carries
7093 on without noticing the failure. Fixed.
7096 *) DES library cleanups.
7099 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7100 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7101 ciphers. NOTE: although the key derivation function has been verified
7102 against some published test vectors it has not been extensively tested
7103 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7107 *) Instead of "mkdir -p", which is not fully portable, use new
7108 Perl script "util/mkdir-p.pl".
7111 *) Rewrite the way password based encryption (PBE) is handled. It used to
7112 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7113 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7114 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7115 the 'parameter' field of the AlgorithmIdentifier is passed to the
7116 underlying key generation function so it must do its own ASN1 parsing.
7117 This has also changed the EVP_PBE_CipherInit() function which now has a
7118 'parameter' argument instead of literal salt and iteration count values
7119 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7122 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7123 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7124 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7125 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7126 value was just used as a "magic string" and not used directly its
7127 value doesn't matter.
7130 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7134 *) "linux-sparc64" configuration (ultrapenguin).
7135 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7136 "linux-sparc" configuration.
7137 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7139 *) config now generates no-xxx options for missing ciphers.
7142 *) Support the EBCDIC character set (work in progress).
7143 File ebcdic.c not yet included because it has a different license.
7144 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7146 *) Support BS2000/OSD-POSIX.
7147 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7149 *) Make callbacks for key generation use void * instead of char *.
7152 *) Make S/MIME samples compile (not yet tested).
7155 *) Additional typesafe stacks.
7158 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7162 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7164 *) New configuration variant "sco5-gcc".
7166 *) Updated some demos.
7167 [Sean O Riordain, Wade Scholine]
7169 *) Add missing BIO_free at exit of pkcs12 application.
7172 *) Fix memory leak in conf.c.
7175 *) Updates for Win32 to assembler version of MD5.
7178 *) Set #! path to perl in apps/der_chop to where we found it
7179 instead of using a fixed path.
7182 *) SHA library changes for irix64-mips4-cc.
7185 *) Improvements for VMS support.
7189 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7191 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7192 This also avoids the problems with SC4.2 and unpatched SC5.
7193 [Andy Polyakov <appro@fy.chalmers.se>]
7195 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7196 These are required because of the typesafe stack would otherwise break
7197 existing code. If old code used a structure member which used to be STACK
7198 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7199 sk_num or sk_value it would produce an error because the num, data members
7200 are not present in STACK_OF. Now it just produces a warning. sk_set
7201 replaces the old method of assigning a value to sk_value
7202 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7203 that does this will no longer work (and should use sk_set instead) but
7204 this could be regarded as a "questionable" behaviour anyway.
7207 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7208 correctly handle encrypted S/MIME data.
7211 *) Change type of various DES function arguments from des_cblock
7212 (which means, in function argument declarations, pointer to char)
7213 to des_cblock * (meaning pointer to array with 8 char elements),
7214 which allows the compiler to do more typechecking; it was like
7215 that back in SSLeay, but with lots of ugly casts.
7217 Introduce new type const_des_cblock.
7220 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7221 problems: find RecipientInfo structure that matches recipient certificate
7222 and initialise the ASN1 structures properly based on passed cipher.
7225 *) Belatedly make the BN tests actually check the results.
7228 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7229 to and from BNs: it was completely broken. New compilation option
7230 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7231 key elements as negative integers.
7234 *) Reorganize and speed up MD5.
7235 [Andy Polyakov <appro@fy.chalmers.se>]
7238 [Richard Levitte <richard@levitte.org>]
7240 *) New option -out to asn1parse to allow the parsed structure to be
7241 output to a file. This is most useful when combined with the -strparse
7242 option to examine the output of things like OCTET STRINGS.
7245 *) Make SSL library a little more fool-proof by not requiring any longer
7246 that SSL_set_{accept,connect}_state be called before
7247 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7248 in many applications because usually everything *appeared* to work as
7249 intended anyway -- now it really works as intended).
7252 *) Move openssl.cnf out of lib/.
7255 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7256 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7257 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7258 [Ralf S. Engelschall]
7260 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7261 handle PKCS#7 enveloped data properly.
7262 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7264 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7265 copying pointers. The cert_st handling is changed by this in
7266 various ways (and thus what used to be known as ctx->default_cert
7267 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7268 any longer when s->cert does not give us what we need).
7269 ssl_cert_instantiate becomes obsolete by this change.
7270 As soon as we've got the new code right (possibly it already is?),
7271 we have solved a couple of bugs of the earlier code where s->cert
7272 was used as if it could not have been shared with other SSL structures.
7274 Note that using the SSL API in certain dirty ways now will result
7275 in different behaviour than observed with earlier library versions:
7276 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7277 does not influence s as it used to.
7279 In order to clean up things more thoroughly, inside SSL_SESSION
7280 we don't use CERT any longer, but a new structure SESS_CERT
7281 that holds per-session data (if available); currently, this is
7282 the peer's certificate chain and, for clients, the server's certificate
7283 and temporary key. CERT holds only those values that can have
7284 meaningful defaults in an SSL_CTX.
7287 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7288 from the internal representation. Various PKCS#7 fixes: remove some
7289 evil casts and set the enc_dig_alg field properly based on the signing
7293 *) Allow PKCS#12 password to be set from the command line or the
7294 environment. Let 'ca' get its config file name from the environment
7295 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7299 *) Allow certificate policies extension to use an IA5STRING for the
7300 organization field. This is contrary to the PKIX definition but
7301 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7305 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7306 without disallowing inline assembler and the like for non-pedantic builds.
7309 *) Support Borland C++ builder.
7310 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7315 *) SHA-1 cleanups and performance enhancements.
7316 [Andy Polyakov <appro@fy.chalmers.se>]
7318 *) Sparc v8plus assembler for the bignum library.
7319 [Andy Polyakov <appro@fy.chalmers.se>]
7321 *) Accept any -xxx and +xxx compiler options in Configure.
7324 *) Update HPUX configuration.
7327 *) Add missing sk_<type>_unshift() function to safestack.h
7328 [Ralf S. Engelschall]
7330 *) New function SSL_CTX_use_certificate_chain_file that sets the
7331 "extra_cert"s in addition to the certificate. (This makes sense
7332 only for "PEM" format files, as chains as a whole are not
7336 *) Support verify_depth from the SSL API.
7337 x509_vfy.c had what can be considered an off-by-one-error:
7338 Its depth (which was not part of the external interface)
7339 was actually counting the number of certificates in a chain;
7340 now it really counts the depth.
7343 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7344 instead of X509err, which often resulted in confusing error
7345 messages since the error codes are not globally unique
7346 (e.g. an alleged error in ssl3_accept when a certificate
7347 didn't match the private key).
7349 *) New function SSL_CTX_set_session_id_context that allows to set a default
7350 value (so that you don't need SSL_set_session_id_context for each
7351 connection using the SSL_CTX).
7354 *) OAEP decoding bug fix.
7357 *) Support INSTALL_PREFIX for package builders, as proposed by
7361 *) New Configure options "threads" and "no-threads". For systems
7362 where the proper compiler options are known (currently Solaris
7363 and Linux), "threads" is the default.
7366 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7369 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7370 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7371 such as /usr/local/bin.
7374 *) "make linux-shared" to build shared libraries.
7375 [Niels Poppe <niels@netbox.org>]
7377 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7380 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7381 extension adding in x509 utility.
7384 *) Remove NOPROTO sections and error code comments.
7387 *) Partial rewrite of the DEF file generator to now parse the ANSI
7391 *) New Configure options --prefix=DIR and --openssldir=DIR.
7394 *) Complete rewrite of the error code script(s). It is all now handled
7395 by one script at the top level which handles error code gathering,
7396 header rewriting and C source file generation. It should be much better
7397 than the old method: it now uses a modified version of Ulf's parser to
7398 read the ANSI prototypes in all header files (thus the old K&R definitions
7399 aren't needed for error creation any more) and do a better job of
7400 translating function codes into names. The old 'ASN1 error code imbedded
7401 in a comment' is no longer necessary and it doesn't use .err files which
7402 have now been deleted. Also the error code call doesn't have to appear all
7403 on one line (which resulted in some large lines...).
7406 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7409 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7410 0 (which usually indicates a closed connection), but continue reading.
7413 *) Fix some race conditions.
7416 *) Add support for CRL distribution points extension. Add Certificate
7417 Policies and CRL distribution points documentation.
7420 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7423 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7424 8 of keying material. Merlin has also confirmed interop with this fix
7425 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7426 [Merlin Hughes <merlin@baltimore.ie>]
7428 *) Fix lots of warnings.
7429 [Richard Levitte <levitte@stacken.kth.se>]
7431 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7432 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7433 [Richard Levitte <levitte@stacken.kth.se>]
7435 *) Fix problems with sizeof(long) == 8.
7436 [Andy Polyakov <appro@fy.chalmers.se>]
7438 *) Change functions to ANSI C.
7441 *) Fix typos in error codes.
7442 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7444 *) Remove defunct assembler files from Configure.
7447 *) SPARC v8 assembler BIGNUM implementation.
7448 [Andy Polyakov <appro@fy.chalmers.se>]
7450 *) Support for Certificate Policies extension: both print and set.
7451 Various additions to support the r2i method this uses.
7454 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7455 return a const string when you are expecting an allocated buffer.
7458 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7459 types DirectoryString and DisplayText.
7462 *) Add code to allow r2i extensions to access the configuration database,
7463 add an LHASH database driver and add several ctx helper functions.
7466 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7467 fail when they extended the size of a BIGNUM.
7470 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7471 support typesafe stack.
7474 *) Fix typo in SSL_[gs]et_options().
7475 [Nils Frostberg <nils@medcom.se>]
7477 *) Delete various functions and files that belonged to the (now obsolete)
7478 old X509V3 handling code.
7481 *) New Configure option "rsaref".
7484 *) Don't auto-generate pem.h.
7487 *) Introduce type-safe ASN.1 SETs.
7490 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7491 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7493 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7494 that links with OpenSSL (well at least cause lots of warnings), but fear
7495 not: the conversion is trivial, and it eliminates loads of evil casts. A
7496 few STACKed things have been converted already. Feel free to convert more.
7497 In the fullness of time, I'll do away with the STACK type altogether.
7500 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7501 specified in <certfile> by updating the entry in the index.txt file.
7502 This way one no longer has to edit the index.txt file manually for
7503 revoking a certificate. The -revoke option does the gory details now.
7504 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7506 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7507 `-text' option at all and this way the `-noout -text' combination was
7508 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7509 [Ralf S. Engelschall]
7511 *) Make sure a corresponding plain text error message exists for the
7512 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7513 verify callback function determined that a certificate was revoked.
7514 [Ralf S. Engelschall]
7516 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7517 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7518 all available cipers including rc5, which was forgotten until now.
7519 In order to let the testing shell script know which algorithms
7520 are available, a new (up to now undocumented) command
7521 "openssl list-cipher-commands" is used.
7524 *) Bugfix: s_client occasionally would sleep in select() when
7525 it should have checked SSL_pending() first.
7528 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7529 the raw DSA values prior to ASN.1 encoding.
7532 *) Tweaks to Configure
7533 [Niels Poppe <niels@netbox.org>]
7535 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7539 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7542 *) New config option to avoid instructions that are illegal on the 80386.
7543 The default code is faster, but requires at least a 486.
7546 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7547 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7548 same as SSL2_VERSION anyway.
7551 *) New "-showcerts" option for s_client.
7554 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7555 application. Various cleanups and fixes.
7558 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7559 modify error routines to work internally. Add error codes and PBE init
7560 to library startup routines.
7563 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7564 packing functions to asn1 and evp. Changed function names and error
7565 codes along the way.
7568 *) PKCS12 integration: and so it begins... First of several patches to
7569 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7570 objects to objects.h
7573 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7574 and display support for Thawte strong extranet extension.
7577 *) Add LinuxPPC support.
7578 [Jeff Dubrule <igor@pobox.org>]
7580 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7581 bn_div_words in alpha.s.
7582 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7584 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7585 OAEP isn't supported when OpenSSL is built with RSAref.
7586 [Ulf Moeller <ulf@fitug.de>]
7588 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7589 so they no longer are missing under -DNOPROTO.
7590 [Soren S. Jorvang <soren@t.dk>]
7593 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7595 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7596 doesn't work when the session is reused. Coming soon!
7599 *) Fix a security hole, that allows sessions to be reused in the wrong
7600 context thus bypassing client cert protection! All software that uses
7601 client certs and session caches in multiple contexts NEEDS PATCHING to
7602 allow session reuse! A fuller solution is in the works.
7603 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7605 *) Some more source tree cleanups (removed obsolete files
7606 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7607 permission on "config" script to be executable) and a fix for the INSTALL
7609 [Ulf Moeller <ulf@fitug.de>]
7611 *) Remove some legacy and erroneous uses of malloc, free instead of
7613 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7615 *) Make rsa_oaep_test return non-zero on error.
7616 [Ulf Moeller <ulf@fitug.de>]
7618 *) Add support for native Solaris shared libraries. Configure
7619 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7620 if someone would make that last step automatic.
7621 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7623 *) ctx_size was not built with the right compiler during "make links". Fixed.
7626 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7627 except NULL ciphers". This means the default cipher list will no longer
7628 enable NULL ciphers. They need to be specifically enabled e.g. with
7629 the string "DEFAULT:eNULL".
7632 *) Fix to RSA private encryption routines: if p < q then it would
7633 occasionally produce an invalid result. This will only happen with
7634 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7637 *) Be less restrictive and allow also `perl util/perlpath.pl
7638 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7639 because this way one can also use an interpreter named `perl5' (which is
7640 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7641 installed as `perl').
7642 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7644 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7645 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7647 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7648 advapi32.lib to Win32 build and change the pem test comparision
7649 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7650 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7651 and crypto/des/ede_cbcm_enc.c.
7654 *) DES quad checksum was broken on big-endian architectures. Fixed.
7657 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7658 Win32 test batch file so it (might) work again. The Win32 test batch file
7659 is horrible: I feel ill....
7662 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7663 in e_os.h. Audit of header files to check ANSI and non ANSI
7664 sections: 10 functions were absent from non ANSI section and not exported
7665 from Windows DLLs. Fixed up libeay.num for new functions.
7668 *) Make `openssl version' output lines consistent.
7669 [Ralf S. Engelschall]
7671 *) Fix Win32 symbol export lists for BIO functions: Added
7672 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7673 to ms/libeay{16,32}.def.
7674 [Ralf S. Engelschall]
7676 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7677 fine under Unix and passes some trivial tests I've now added. But the
7678 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7679 added to make sure no one expects that this stuff really works in the
7680 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7681 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7683 [Ralf S. Engelschall]
7685 *) Fix the generation of two part addresses in perl.
7686 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7688 *) Add config entry for Linux on MIPS.
7689 [John Tobey <jtobey@channel1.com>]
7691 *) Make links whenever Configure is run, unless we are on Windoze.
7694 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7695 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7699 *) Add a useful kludge to allow package maintainers to specify compiler and
7700 other platforms details on the command line without having to patch the
7701 Configure script everytime: One now can use ``perl Configure
7702 <id>:<details>'', i.e. platform ids are allowed to have details appended
7703 to them (seperated by colons). This is treated as there would be a static
7704 pre-configured entry in Configure's %table under key <id> with value
7705 <details> and ``perl Configure <id>'' is called. So, when you want to
7706 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7707 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7708 now, which overrides the FreeBSD-elf entry on-the-fly.
7709 [Ralf S. Engelschall]
7711 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7714 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7715 on the `perl Configure ...' command line. This way one can compile
7716 OpenSSL libraries with Position Independent Code (PIC) which is needed
7717 for linking it into DSOs.
7718 [Ralf S. Engelschall]
7720 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7724 *) Cleaned up the LICENSE document: The official contact for any license
7725 questions now is the OpenSSL core team under openssl-core@openssl.org.
7726 And add a paragraph about the dual-license situation to make sure people
7727 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7728 to the OpenSSL toolkit.
7729 [Ralf S. Engelschall]
7731 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7732 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7733 Additonally cleaned up the `make links' target: Remove unnecessary
7734 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7735 to speed processing and no longer clutter the display with confusing
7736 stuff. Instead only the actually done links are displayed.
7737 [Ralf S. Engelschall]
7739 *) Permit null encryption ciphersuites, used for authentication only. It used
7740 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7741 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7745 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7746 signed attributes when verifying signatures (this would break them),
7747 the detached data encoding was wrong and public keys obtained using
7748 X509_get_pubkey() weren't freed.
7751 *) Add text documentation for the BUFFER functions. Also added a work around
7752 to a Win95 console bug. This was triggered by the password read stuff: the
7753 last character typed gets carried over to the next fread(). If you were
7754 generating a new cert request using 'req' for example then the last
7755 character of the passphrase would be CR which would then enter the first
7759 *) Added the new `Includes OpenSSL Cryptography Software' button as
7760 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7761 button and can be used by applications based on OpenSSL to show the
7762 relationship to the OpenSSL project.
7763 [Ralf S. Engelschall]
7765 *) Remove confusing variables in function signatures in files
7766 ssl/ssl_lib.c and ssl/ssl.h.
7767 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7769 *) Don't install bss_file.c under PREFIX/include/
7770 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7772 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7773 functions that return function pointers and has support for NT specific
7774 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7775 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7776 unsigned to signed types: this was killing the Win32 compile.
7779 *) Add new certificate file to stack functions,
7780 SSL_add_dir_cert_subjects_to_stack() and
7781 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7782 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7783 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7784 This means that Apache-SSL and similar packages don't have to mess around
7785 to add as many CAs as they want to the preferred list.
7788 *) Experiment with doxygen documentation. Currently only partially applied to
7790 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7791 openssl.doxy as the configuration file.
7794 *) Get rid of remaining C++-style comments which strict C compilers hate.
7795 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7797 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7798 compiled in by default: it has problems with large keys.
7801 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7802 DH private keys and/or callback functions which directly correspond to
7803 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7804 is needed for applications which have to configure certificates on a
7805 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7807 For the RSA certificate situation is makes no difference, but
7808 for the DSA certificate situation this fixes the "no shared cipher"
7809 problem where the OpenSSL cipher selection procedure failed because the
7810 temporary keys were not overtaken from the context and the API provided
7811 no way to reconfigure them.
7812 The new functions now let applications reconfigure the stuff and they
7813 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7814 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7815 non-public-API function ssl_cert_instantiate() is used as a helper
7816 function and also to reduce code redundancy inside ssl_rsa.c.
7817 [Ralf S. Engelschall]
7819 *) Move s_server -dcert and -dkey options out of the undocumented feature
7820 area because they are useful for the DSA situation and should be
7821 recognized by the users.
7822 [Ralf S. Engelschall]
7824 *) Fix the cipher decision scheme for export ciphers: the export bits are
7825 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7826 SSL_EXP_MASK. So, the original variable has to be used instead of the
7827 already masked variable.
7828 [Richard Levitte <levitte@stacken.kth.se>]
7830 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7831 [Richard Levitte <levitte@stacken.kth.se>]
7833 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7834 from `int' to `unsigned int' because it's a length and initialized by
7835 EVP_DigestFinal() which expects an `unsigned int *'.
7836 [Richard Levitte <levitte@stacken.kth.se>]
7838 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7839 script. Instead use the usual Shell->Perl transition trick.
7840 [Ralf S. Engelschall]
7842 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7843 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7844 -noout -modulus' as it's already the case for `openssl rsa -noout
7845 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7846 currently the public key is printed (a decision which was already done by
7847 `openssl dsa -modulus' in the past) which serves a similar purpose.
7848 Additionally the NO_RSA no longer completely removes the whole -modulus
7849 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7851 [Ralf S. Engelschall]
7853 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7854 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7855 [Arne Ansper <arne@ats.cyber.ee>]
7857 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7858 to be added. Now both 'req' and 'ca' can use new objects defined in the
7862 *) Add cool BIO that does syslog (or event log on NT).
7863 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7865 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7866 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7867 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7868 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7871 *) Add preliminary config info for new extension code.
7874 *) Make RSA_NO_PADDING really use no padding.
7875 [Ulf Moeller <ulf@fitug.de>]
7877 *) Generate errors when private/public key check is done.
7880 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7881 for some CRL extensions and new objects added.
7884 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7885 key usage extension and fuller support for authority key id.
7888 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7889 padding method for RSA, which is recommended for new applications in PKCS
7890 #1 v2.0 (RFC 2437, October 1998).
7891 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7892 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7893 against Bleichbacher's attack on RSA.
7894 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7897 *) Updates to the new SSL compression code
7898 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7900 *) Fix so that the version number in the master secret, when passed
7901 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7902 (because the server will not accept higher), that the version number
7903 is 0x03,0x01, not 0x03,0x00
7904 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7906 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7907 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7908 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7911 *) Support for RAW extensions where an arbitrary extension can be
7912 created by including its DER encoding. See apps/openssl.cnf for
7916 *) Make sure latest Perl versions don't interpret some generated C array
7917 code as Perl array code in the crypto/err/err_genc.pl script.
7918 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7920 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7921 not many people have the assembler. Various Win32 compilation fixes and
7922 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7926 *) Modify configure script 'Configure' to automatically create crypto/date.h
7927 file under Win32 and also build pem.h from pem.org. New script
7928 util/mkfiles.pl to create the MINFO file on environments that can't do a
7929 'make files': perl util/mkfiles.pl >MINFO should work.
7932 *) Major rework of DES function declarations, in the pursuit of correctness
7933 and purity. As a result, many evil casts evaporated, and some weirdness,
7934 too. You may find this causes warnings in your code. Zapping your evil
7935 casts will probably fix them. Mostly.
7938 *) Fix for a typo in asn1.h. Bug fix to object creation script
7939 obj_dat.pl. It considered a zero in an object definition to mean
7940 "end of object": none of the objects in objects.h have any zeros
7941 so it wasn't spotted.
7942 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7944 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7945 Masking (CBCM). In the absence of test vectors, the best I have been able
7946 to do is check that the decrypt undoes the encrypt, so far. Send me test
7947 vectors if you have them.
7950 *) Correct calculation of key length for export ciphers (too much space was
7951 allocated for null ciphers). This has not been tested!
7954 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7955 message is now correct (it understands "crypto" and "ssl" on its
7956 command line). There is also now an "update" option. This will update
7957 the util/ssleay.num and util/libeay.num files with any new functions.
7959 perl util/mkdef.pl crypto ssl update
7960 it will update them.
7963 *) Overhauled the Perl interface (perl/*):
7964 - ported BN stuff to OpenSSL's different BN library
7965 - made the perl/ source tree CVS-aware
7966 - renamed the package from SSLeay to OpenSSL (the files still contain
7967 their history because I've copied them in the repository)
7968 - removed obsolete files (the test scripts will be replaced
7969 by better Test::Harness variants in the future)
7970 [Ralf S. Engelschall]
7972 *) First cut for a very conservative source tree cleanup:
7973 1. merge various obsolete readme texts into doc/ssleay.txt
7974 where we collect the old documents and readme texts.
7975 2. remove the first part of files where I'm already sure that we no
7976 longer need them because of three reasons: either they are just temporary
7977 files which were left by Eric or they are preserved original files where
7978 I've verified that the diff is also available in the CVS via "cvs diff
7979 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7980 the crypto/md/ stuff).
7981 [Ralf S. Engelschall]
7983 *) More extension code. Incomplete support for subject and issuer alt
7984 name, issuer and authority key id. Change the i2v function parameters
7985 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7986 what that's for :-) Fix to ASN1 macro which messed up
7987 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7990 *) Preliminary support for ENUMERATED type. This is largely copied from the
7994 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7995 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7997 *) Make sure `make rehash' target really finds the `openssl' program.
7998 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8000 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8001 like to hear about it if this slows down other processors.
8004 *) Add CygWin32 platform information to Configure script.
8005 [Alan Batie <batie@aahz.jf.intel.com>]
8007 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8008 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8010 *) New program nseq to manipulate netscape certificate sequences
8013 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8017 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8018 but the BN code had some problems that would cause failures when
8019 doing certificate verification and some other functions.
8020 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8022 *) Add ASN1 and PEM code to support netscape certificate sequences.
8025 *) Add ASN1 and PEM code to support netscape certificate sequences.
8028 *) Add several PKIX and private extended key usage OIDs.
8031 *) Modify the 'ca' program to handle the new extension code. Modify
8032 openssl.cnf for new extension format, add comments.
8035 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8036 and add a sample to openssl.cnf so req -x509 now adds appropriate
8040 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8041 error code, add initial support to X509_print() and x509 application.
8044 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8045 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8046 stuff is currently isolated and isn't even compiled yet.
8049 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8050 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8051 Removed the versions check from X509 routines when loading extensions:
8052 this allows certain broken certificates that don't set the version
8053 properly to be processed.
8056 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8057 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8058 can still be regenerated with "make depend".
8061 *) Spelling mistake in C version of CAST-128.
8062 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8064 *) Changes to the error generation code. The perl script err-code.pl
8065 now reads in the old error codes and retains the old numbers, only
8066 adding new ones if necessary. It also only changes the .err files if new
8067 codes are added. The makefiles have been modified to only insert errors
8068 when needed (to avoid needlessly modifying header files). This is done
8069 by only inserting errors if the .err file is newer than the auto generated
8070 C file. To rebuild all the error codes from scratch (the old behaviour)
8071 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8072 or delete all the .err files.
8075 *) CAST-128 was incorrectly implemented for short keys. The C version has
8076 been fixed, but is untested. The assembler versions are also fixed, but
8077 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8078 to regenerate it if needed.
8079 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8080 Hagino <itojun@kame.net>]
8082 *) File was opened incorrectly in randfile.c.
8083 [Ulf Möller <ulf@fitug.de>]
8085 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8086 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8087 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8088 al: it's just almost always a UTCTime. Note this patch adds new error
8089 codes so do a "make errors" if there are problems.
8092 *) Correct Linux 1 recognition in config.
8093 [Ulf Möller <ulf@fitug.de>]
8095 *) Remove pointless MD5 hash when using DSA keys in ca.
8096 [Anonymous <nobody@replay.com>]
8098 *) Generate an error if given an empty string as a cert directory. Also
8099 generate an error if handed NULL (previously returned 0 to indicate an
8100 error, but didn't set one).
8101 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8103 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8106 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8107 parameters. This was causing a warning which killed off the Win32 compile.
8110 *) Remove C++ style comments from crypto/bn/bn_local.h.
8111 [Neil Costigan <neil.costigan@celocom.com>]
8113 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8114 based on a text string, looking up short and long names and finally
8115 "dot" format. The "dot" format stuff didn't work. Added new function
8116 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8117 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8118 OID is not part of the table.
8121 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8122 X509_LOOKUP_by_alias().
8125 *) Sort openssl functions by name.
8128 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8129 encryption from sample DSA keys (in case anyone is interested the password
8133 *) Make _all_ *_free functions accept a NULL pointer.
8134 [Frans Heymans <fheymans@isaserver.be>]
8136 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8138 [Anonymous <nobody@replay.com>]
8140 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8141 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8143 *) Don't blow it for numeric -newkey arguments to apps/req.
8144 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8146 *) Temp key "for export" tests were wrong in s3_srvr.c.
8147 [Anonymous <nobody@replay.com>]
8149 *) Add prototype for temp key callback functions
8150 SSL_CTX_set_tmp_{rsa,dh}_callback().
8153 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8154 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8157 *) X509_name_add_entry() freed the wrong thing after an error.
8158 [Arne Ansper <arne@ats.cyber.ee>]
8160 *) rsa_eay.c would attempt to free a NULL context.
8161 [Arne Ansper <arne@ats.cyber.ee>]
8163 *) BIO_s_socket() had a broken should_retry() on Windoze.
8164 [Arne Ansper <arne@ats.cyber.ee>]
8166 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8167 [Arne Ansper <arne@ats.cyber.ee>]
8169 *) Make sure the already existing X509_STORE->depth variable is initialized
8170 in X509_STORE_new(), but document the fact that this variable is still
8171 unused in the certificate verification process.
8172 [Ralf S. Engelschall]
8174 *) Fix the various library and apps files to free up pkeys obtained from
8175 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8178 *) Fix reference counting in X509_PUBKEY_get(). This makes
8179 demos/maurice/example2.c work, amongst others, probably.
8180 [Steve Henson and Ben Laurie]
8182 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8183 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8184 are no longer created. This way we have a single and consistent command
8185 line interface `openssl <command>', similar to `cvs <command>'.
8186 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8188 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8189 BIT STRING wrapper always have zero unused bits.
8192 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8195 *) Make the top-level INSTALL documentation easier to understand.
8198 *) Makefiles updated to exit if an error occurs in a sub-directory
8199 make (including if user presses ^C) [Paul Sutton]
8201 *) Make Montgomery context stuff explicit in RSA data structure.
8204 *) Fix build order of pem and err to allow for generated pem.h.
8207 *) Fix renumbering bug in X509_NAME_delete_entry().
8210 *) Enhanced the err-ins.pl script so it makes the error library number
8211 global and can add a library name. This is needed for external ASN1 and
8212 other error libraries.
8215 *) Fixed sk_insert which never worked properly.
8218 *) Fix ASN1 macros so they can handle indefinite length construted
8219 EXPLICIT tags. Some non standard certificates use these: they can now
8223 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8224 into a single doc/ssleay.txt bundle. This way the information is still
8225 preserved but no longer messes up this directory. Now it's new room for
8226 the new set of documenation files.
8227 [Ralf S. Engelschall]
8229 *) SETs were incorrectly DER encoded. This was a major pain, because they
8230 shared code with SEQUENCEs, which aren't coded the same. This means that
8231 almost everything to do with SETs or SEQUENCEs has either changed name or
8232 number of arguments.
8233 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8235 *) Fix test data to work with the above.
8238 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8239 was already fixed by Eric for 0.9.1 it seems.
8240 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8242 *) Autodetect FreeBSD3.
8245 *) Fix various bugs in Configure. This affects the following platforms:
8249 unixware-2.0-pentium
8253 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8254 before they are needed.
8257 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8261 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8263 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8264 changed SSLeay to OpenSSL in version strings.
8265 [Ralf S. Engelschall]
8267 *) Some fixups to the top-level documents.
8270 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8271 because the symlink to include/ was missing.
8272 [Ralf S. Engelschall]
8274 *) Incorporated the popular no-RSA/DSA-only patches
8275 which allow to compile a RSA-free SSLeay.
8276 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8278 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8279 when "ssleay" is still not found.
8280 [Ralf S. Engelschall]
8282 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8283 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8285 *) Updated the README file.
8286 [Ralf S. Engelschall]
8288 *) Added various .cvsignore files in the CVS repository subdirs
8289 to make a "cvs update" really silent.
8290 [Ralf S. Engelschall]
8292 *) Recompiled the error-definition header files and added
8293 missing symbols to the Win32 linker tables.
8294 [Ralf S. Engelschall]
8296 *) Cleaned up the top-level documents;
8297 o new files: CHANGES and LICENSE
8298 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8299 o merged COPYRIGHT into LICENSE
8300 o removed obsolete TODO file
8301 o renamed MICROSOFT to INSTALL.W32
8302 [Ralf S. Engelschall]
8304 *) Removed dummy files from the 0.9.1b source tree:
8305 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8306 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8307 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8308 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8309 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8310 [Ralf S. Engelschall]
8312 *) Added various platform portability fixes.
8315 *) The Genesis of the OpenSSL rpject:
8316 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8317 Young and Tim J. Hudson created while they were working for C2Net until
8319 [The OpenSSL Project]
8322 Changes between 0.9.0b and 0.9.1b [not released]
8324 *) Updated a few CA certificates under certs/
8327 *) Changed some BIGNUM api stuff.
8330 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8331 DGUX x86, Linux Alpha, etc.
8334 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8335 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8339 *) Add -strparse option to asn1pars program which parses nested
8341 [Dr Stephen Henson <shenson@bigfoot.com>]
8343 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8346 *) DSA fix for "ca" program.
8349 *) Added "-genkey" option to "dsaparam" program.
8352 *) Added RIPE MD160 (rmd160) message digest.
8355 *) Added -a (all) option to "ssleay version" command.
8358 *) Added PLATFORM define which is the id given to Configure.
8361 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8364 *) Extended the ASN.1 parser routines.
8367 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8370 *) Added a BN_CTX to the BN library.
8373 *) Fixed the weak key values in DES library
8376 *) Changed API in EVP library for cipher aliases.
8379 *) Added support for RC2/64bit cipher.
8382 *) Converted the lhash library to the crypto/mem.c functions.
8385 *) Added more recognized ASN.1 object ids.
8388 *) Added more RSA padding checks for SSL/TLS.
8391 *) Added BIO proxy/filter functionality.
8394 *) Added extra_certs to SSL_CTX which can be used
8395 send extra CA certificates to the client in the CA cert chain sending
8396 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8399 *) Now Fortezza is denied in the authentication phase because
8400 this is key exchange mechanism is not supported by SSLeay at all.
8403 *) Additional PKCS1 checks.
8406 *) Support the string "TLSv1" for all TLS v1 ciphers.
8409 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8410 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8413 *) Fixed a few memory leaks.
8416 *) Fixed various code and comment typos.
8419 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8420 bytes sent in the client random.
8421 [Edward Bishop <ebishop@spyglass.com>]