5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) Experimental support for use of HMAC via EVP_PKEY interface. This
8 allows HMAC to be handled via the EVP_DigestSign*() interface. The
9 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
10 ENGINE support for HMAC keys which are unextractable.
13 *) New option -sigopt to dgst utility. Update dgst to use
14 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
15 alternative signing paramaters such as X9.31 or PSS in the dgst
19 *) Change ssl_cipher_apply_rule(), the internal function that does
20 the work each time a ciphersuite string requests enabling
21 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
22 removing ("!foo+bar") a class of ciphersuites: Now it maintains
23 the order of disabled ciphersuites such that those ciphersuites
24 that most recently went from enabled to disabled not only stay
25 in order with respect to each other, but also have higher priority
26 than other disabled ciphersuites the next time ciphersuites are
29 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
30 the same ciphersuites as with "HIGH" alone, but in a specific
31 order where the PSK ciphersuites come first (since they are the
32 most recently disabled ciphersuites when "HIGH" is parsed).
34 Also, change ssl_create_cipher_list() (using this new
35 funcionality) such that between otherwise identical
36 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
40 *) Change ssl_create_cipher_list() so that it automatically
41 arranges the ciphersuites in reasonable order before starting
42 to process the rule string. Thus, the definition for "DEFAULT"
43 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
44 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
45 This makes it much easier to arrive at a reasonable default order
46 in applications for which anonymous ciphers are OK (meaning
47 that you can't actually use DEFAULT).
48 [Bodo Moeller; suggested by Victor Duchovni]
50 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
51 processing) into multiple integers instead of setting
52 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
53 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
54 (These masks as well as the individual bit definitions are hidden
55 away into the non-exported interface ssl/ssl_locl.h, so this
56 change to the definition of the SSL_CIPHER structure shouldn't
57 affect applications.) This give us more bits for each of these
58 categories, so there is no longer a need to coagulate AES128 and
59 AES256 into a single algorithm bit, and to coagulate Camellia128
60 and Camellia256 into a single algorithm bit, which has led to all
63 Thus, among other things, the kludge introduced in 0.9.7m and
64 0.9.8e for masking out AES256 independently of AES128 or masking
65 out Camellia256 independently of AES256 is not needed here in 0.9.9.
67 With the change, we also introduce new ciphersuite aliases that
68 so far were missing: "AES128", "AES256", "CAMELLIA128", and
72 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
73 Use the leftmost N bytes of the signature input if the input is
74 larger than the prime q (with N being the size in bytes of q).
77 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
78 it yet and it is largely untested.
81 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
84 *) Initial incomplete changes to avoid need for function casts in OpenSSL
85 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
86 their use. Safestack is reimplemented using inline functions: tests show
87 that these calls are typically optimized away by compilers so they have
88 no additional overhead. Update ASN1 to avoid use of legacy functions.
91 *) Win32/64 targets are linked with Winsock2.
94 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
95 to external functions. This can be used to increase CRL handling
96 efficiency especially when CRLs are very large by (for example) storing
97 the CRL revoked certificates in a database.
100 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
101 new CRLs added to a directory can be used. New command line option
102 -verify_return_error to s_client and s_server. This causes real errors
103 to be returned by the verify callback instead of carrying on no matter
104 what. This reflects the way a "real world" verify callback would behave.
107 *) GOST engine, supporting several GOST algorithms and public key formats.
108 Kindly donated by Cryptocom.
111 *) Partial support for Issuing Distribution Point CRL extension. CRLs
112 partitioned by DP are handled but no indirect CRL or reason partitioning
113 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
114 selected via a scoring technique which handles IDP and AKID in CRLs.
117 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
118 will ultimately be used for all verify operations: this will remove the
119 X509_STORE dependency on certificate verification and allow alternative
120 lookup methods. X509_STORE based implementations of these two callbacks.
123 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
124 Modify get_crl() to find a valid (unexpired) CRL if possible.
127 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
128 this would be called X509_CRL_cmp() but that name is already used by
129 a function that just compares CRL issuer names. Cache several CRL
130 extensions in X509_CRL structure and cache CRLDP in X509.
133 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
134 this maps equivalent X509_NAME structures into a consistent structure.
135 Name comparison can then be performed rapidly using memcmp().
138 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
142 *) Allow digests to supply their own micalg string for S/MIME type using
143 the ctrl EVP_MD_CTRL_MICALG.
146 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
147 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
148 ctrl. It can then customise the structure before and/or after signing
152 *) New function OBJ_add_sigid() to allow application defined signature OIDs
153 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
154 to free up any added signature OIDs.
157 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
158 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
159 digest and cipher tables. New options added to openssl utility:
160 list-message-digest-algorithms and list-cipher-algorithms.
163 *) In addition to the numerical (unsigned long) thread ID, provide
164 for a pointer (void *) thread ID. This helps accomodate systems
165 that do not provide an unsigned long thread ID. OpenSSL assumes
166 it is in the same thread iff both the numerical and the pointer
167 thread ID agree; so applications are just required to define one
168 of them appropriately (e.g., by using a pointer to a per-thread
169 memory object malloc()ed by the application for the pointer-type
170 thread ID). Exactly analoguous to the existing functions
172 void CRYPTO_set_id_callback(unsigned long (*func)(void));
173 unsigned long (*CRYPTO_get_id_callback(void))(void);
174 unsigned long CRYPTO_thread_id(void);
176 we now have additional functions
178 void CRYPTO_set_idptr_callback(void *(*func)(void));
179 void *(*CRYPTO_get_idptr_callback(void))(void);
180 void *CRYPTO_thread_idptr(void);
182 also in <openssl/crypto.h>. The default value for
183 CRYPTO_thread_idptr() if the application has not provided its own
187 *) Change the array representation of binary polynomials: the list
188 of degrees of non-zero coefficients is now terminated with -1.
189 Previously it was terminated with 0, which was also part of the
190 value; thus, the array representation was not applicable to
191 polynomials where t^0 has coefficient zero. This change makes
192 the array representation useful in a more general context.
195 *) Various modifications and fixes to SSL/TLS cipher string
196 handling. For ECC, the code now distinguishes between fixed ECDH
197 with RSA certificates on the one hand and with ECDSA certificates
198 on the other hand, since these are separate ciphersuites. The
199 unused code for Fortezza ciphersuites has been removed.
201 For consistency with EDH, ephemeral ECDH is now called "EECDH"
202 (not "ECDHE"). For consistency with the code for DH
203 certificates, use of ECDH certificates is now considered ECDH
204 authentication, not RSA or ECDSA authentication (the latter is
205 merely the CA's signing algorithm and not actively used in the
208 The temporary ciphersuite alias "ECCdraft" is no longer
209 available, and ECC ciphersuites are no longer excluded from "ALL"
210 and "DEFAULT". The following aliases now exist for RFC 4492
211 ciphersuites, most of these by analogy with the DH case:
213 kECDHr - ECDH cert, signed with RSA
214 kECDHe - ECDH cert, signed with ECDSA
215 kECDH - ECDH cert (signed with either RSA or ECDSA)
216 kEECDH - ephemeral ECDH
217 ECDH - ECDH cert or ephemeral ECDH
223 AECDH - anonymous ECDH
224 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
228 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
229 Use correct micalg parameters depending on digest(s) in signed message.
232 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
233 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
236 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
237 an engine to register a method. Add ENGINE lookups for methods and
238 functional reference processing.
241 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
242 EVP_{Sign,Verify}* which allow an application to customise the signature
246 *) New -resign option to smime utility. This adds one or more signers
247 to an existing PKCS#7 signedData structure. Also -md option to use an
248 alternative message digest algorithm for signing.
251 *) Tidy up PKCS#7 routines and add new functions to make it easier to
252 create PKCS7 structures containing multiple signers. Update smime
253 application to support multiple signers.
256 *) New -macalg option to pkcs12 utility to allow setting of an alternative
260 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
261 Reorganize PBE internals to lookup from a static table using NIDs,
262 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
263 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
264 PRF which will be automatically used with PBES2.
267 *) Replace the algorithm specific calls to generate keys in "req" with the
271 *) Update PKCS#7 enveloped data routines to use new API. This is now
272 supported by any public key method supporting the encrypt operation. A
273 ctrl is added to allow the public key algorithm to examine or modify
274 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
278 *) Add a ctrl to asn1 method to allow a public key algorithm to express
279 a default digest type to use. In most cases this will be SHA1 but some
280 algorithms (such as GOST) need to specify an alternative digest. The
281 return value indicates how strong the prefernce is 1 means optional and
282 2 is mandatory (that is it is the only supported type). Modify
283 ASN1_item_sign() to accept a NULL digest argument to indicate it should
284 use the default md. Update openssl utilities to use the default digest
285 type for signing if it is not explicitly indicated.
288 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
289 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
290 signing method from the key type. This effectively removes the link
291 between digests and public key types.
294 *) Add an OID cross reference table and utility functions. Its purpose is to
295 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
296 rsaEncryption. This will allow some of the algorithm specific hackery
297 needed to use the correct OID to be removed.
300 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
301 structures for PKCS7_sign(). They are now set up by the relevant public
305 *) Add provisional EC pkey method with support for ECDSA and ECDH.
308 *) Add support for key derivation (agreement) in the API, DH method and
312 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
313 public and private key formats. As a side effect these add additional
314 command line functionality not previously available: DSA signatures can be
315 generated and verified using pkeyutl and DH key support and generation in
320 [Oliver Tappe <zooey@hirschkaefer.de>]
322 *) New make target "install_html_docs" installs HTML renditions of the
324 [Oliver Tappe <zooey@hirschkaefer.de>]
326 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
327 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
328 support key and parameter generation and add initial key generation
329 functionality for RSA.
332 *) Add functions for main EVP_PKEY_method operations. The undocumented
333 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
334 EVP_PKEY_{encrypt,decrypt}_old.
337 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
338 key API, doesn't do much yet.
341 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
342 public key algorithms. New option to openssl utility:
343 "list-public-key-algorithms" to print out info.
346 *) Implement the Supported Elliptic Curves Extension for
347 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
350 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
351 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
354 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
355 utilities such as rsa, dsa, dsaparam etc except they process any key
359 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
360 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
361 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
365 *) Initial support for pluggable public key ASN1.
366 De-spaghettify the public key ASN1 handling. Move public and private
367 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
368 algorithm specific handling to a single module within the relevant
369 algorithm directory. Add functions to allow (near) opaque processing
370 of public and private key structures.
373 *) Implement the Supported Point Formats Extension for
374 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
377 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
378 for the psk identity [hint] and the psk callback functions to the
379 SSL_SESSION, SSL and SSL_CTX structure.
382 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
386 SSL_CTX_use_psk_identity_hint
387 SSL_get_psk_identity_hint
389 SSL_use_psk_identity_hint
391 [Mika Kousa and Pasi Eronen of Nokia Corporation]
393 *) Add RFC 3161 compliant time stamp request creation, response generation
394 and response verification functionality.
395 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
397 *) Add initial support for TLS extensions, specifically for the server_name
398 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
399 have new members for a host name. The SSL data structure has an
400 additional member SSL_CTX *initial_ctx so that new sessions can be
401 stored in that context to allow for session resumption, even after the
402 SSL has been switched to a new SSL_CTX in reaction to a client's
403 server_name extension.
405 New functions (subject to change):
408 SSL_get_servername_type()
411 New CTRL codes and macros (subject to change):
413 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
414 - SSL_CTX_set_tlsext_servername_callback()
415 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
416 - SSL_CTX_set_tlsext_servername_arg()
417 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
419 openssl s_client has a new '-servername ...' option.
421 openssl s_server has new options '-servername_host ...', '-cert2 ...',
422 '-key2 ...', '-servername_fatal' (subject to change). This allows
423 testing the HostName extension for a specific single host name ('-cert'
424 and '-key' remain fallbacks for handshakes without HostName
425 negotiation). If the unrecogninzed_name alert has to be sent, this by
426 default is a warning; it becomes fatal with the '-servername_fatal'
429 [Peter Sylvester, Remy Allais, Christophe Renou]
431 *) Whirlpool hash implementation is added.
434 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
435 bn(64,32). Because of instruction set limitations it doesn't have
436 any negative impact on performance. This was done mostly in order
437 to make it possible to share assembler modules, such as bn_mul_mont
438 implementations, between 32- and 64-bit builds without hassle.
441 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
442 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
446 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
447 dedicated Montgomery multiplication procedure, is introduced.
448 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
449 "64-bit" performance on certain 32-bit targets.
452 *) New option SSL_OP_NO_COMP to disable use of compression selectively
453 in SSL structures. New SSL ctrl to set maximum send fragment size.
454 Save memory by seeting the I/O buffer sizes dynamically instead of
455 using the maximum available value.
458 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
459 in addition to the text details.
462 *) Very, very preliminary EXPERIMENTAL support for printing of general
463 ASN1 structures. This currently produces rather ugly output and doesn't
464 handle several customised structures at all.
467 *) Integrated support for PVK file format and some related formats such
468 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
469 these in the 'rsa' and 'dsa' utilities.
472 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
475 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
476 place for the (very old) "NETSCAPE" format certificates which are now
477 handled using new ASN1 code equivalents.
480 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
481 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
482 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
485 *) Modify CRL distribution points extension code to print out previously
486 unsupported fields. Enhance extension setting code to allow setting of
490 *) Add print and set support for Issuing Distribution Point CRL extension.
493 *) Change 'Configure' script to enable Camellia by default.
496 Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
498 *) Mitigate branch prediction attacks, which can be practical if a
499 single processor is shared, allowing a spy process to extract
500 information. For detailed background information, see
501 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
502 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
503 and Necessary Software Countermeasures"). The core of the change
504 are new versions BN_div_no_branch() and
505 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
506 respectively, which are slower, but avoid the security-relevant
507 conditional branches. These are automatically called by BN_div()
508 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
509 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
510 remove a conditional branch.
512 BN_FLG_CONSTTIME is the new name for the previous
513 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
514 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
515 in the exponent causes BN_mod_exp_mont() to use the alternative
516 implementation in BN_mod_exp_mont_consttime().) The old name
517 remains as a deprecated alias.
519 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
520 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
521 constant-time implementations for more than just exponentiation.
522 Here too the old name is kept as a deprecated alias.
524 BN_BLINDING_new() will now use BN_dup() for the modulus so that
525 the BN_BLINDING structure gets an independent copy of the
526 modulus. This means that the previous "BIGNUM *m" argument to
527 BN_BLINDING_new() and to BN_BLINDING_create_param() now
528 essentially becomes "const BIGNUM *m", although we can't actually
529 change this in the header file before 0.9.9. It allows
530 RSA_setup_blinding() to use BN_with_flags() on the modulus to
531 enable BN_FLG_CONSTTIME.
533 [Matthew D Wood (Intel Corp)]
535 *) In the SSL/TLS server implementation, be strict about session ID
536 context matching (which matters if an application uses a single
537 external cache for different purposes). Previously,
538 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
539 set. This did ensure strict client verification, but meant that,
540 with applications using a single external cache for quite
541 different requirements, clients could circumvent ciphersuite
542 restrictions for a given session ID context by starting a session
543 in a different context.
546 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
547 a ciphersuite string such as "DEFAULT:RSA" cannot enable
548 authentication-only ciphersuites.
551 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
553 *) Since AES128 and AES256 (and similarly Camellia128 and
554 Camellia256) share a single mask bit in the logic of
555 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
556 kludge to work properly if AES128 is available and AES256 isn't
557 (or if Camellia128 is available and Camellia256 isn't).
560 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
561 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
562 When a point or a seed is encoded in a BIT STRING, we need to
563 prevent the removal of trailing zero bits to get the proper DER
564 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
565 of a NamedBitList, for which trailing 0 bits need to be removed.)
568 *) Have SSL/TLS server implementation tolerate "mismatched" record
569 protocol version while receiving ClientHello even if the
570 ClientHello is fragmented. (The server can't insist on the
571 particular protocol version it has chosen before the ServerHello
572 message has informed the client about his choice.)
575 *) Add RFC 3779 support.
576 [Rob Austein for ARIN, Ben Laurie]
578 *) Load error codes if they are not already present instead of using a
579 static variable. This allows them to be cleanly unloaded and reloaded.
580 Improve header file function name parsing.
583 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
584 or CAPABILITY handshake as required by RFCs.
587 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
589 *) Introduce limits to prevent malicious keys being able to
590 cause a denial of service. (CVE-2006-2940)
591 [Steve Henson, Bodo Moeller]
593 *) Fix ASN.1 parsing of certain invalid structures that can result
594 in a denial of service. (CVE-2006-2937) [Steve Henson]
596 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
597 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
599 *) Fix SSL client code which could crash if connecting to a
600 malicious SSLv2 server. (CVE-2006-4343)
601 [Tavis Ormandy and Will Drewry, Google Security Team]
603 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
604 match only those. Before that, "AES256-SHA" would be interpreted
605 as a pattern and match "AES128-SHA" too (since AES128-SHA got
606 the same strength classification in 0.9.7h) as we currently only
607 have a single AES bit in the ciphersuite description bitmap.
608 That change, however, also applied to ciphersuite strings such as
609 "RC4-MD5" that intentionally matched multiple ciphersuites --
610 namely, SSL 2.0 ciphersuites in addition to the more common ones
611 from SSL 3.0/TLS 1.0.
613 So we change the selection algorithm again: Naming an explicit
614 ciphersuite selects this one ciphersuite, and any other similar
615 ciphersuite (same bitmap) from *other* protocol versions.
616 Thus, "RC4-MD5" again will properly select both the SSL 2.0
617 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
619 Since SSL 2.0 does not have any ciphersuites for which the
620 128/256 bit distinction would be relevant, this works for now.
621 The proper fix will be to use different bits for AES128 and
622 AES256, which would have avoided the problems from the beginning;
623 however, bits are scarce, so we can only do this in a new release
624 (not just a patchlevel) when we can change the SSL_CIPHER
625 definition to split the single 'unsigned long mask' bitmap into
626 multiple values to extend the available space.
630 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
632 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
633 (CVE-2006-4339) [Ben Laurie and Google Security Team]
635 *) Add AES IGE and biIGE modes.
638 *) Change the Unix randomness entropy gathering to use poll() when
639 possible instead of select(), since the latter has some
640 undesirable limitations.
641 [Darryl Miles via Richard Levitte and Bodo Moeller]
643 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
644 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
645 cannot be implicitly activated as part of, e.g., the "AES" alias.
646 However, please upgrade to OpenSSL 0.9.9[-dev] for
647 non-experimental use of the ECC ciphersuites to get TLS extension
648 support, which is required for curve and point format negotiation
649 to avoid potential handshake problems.
652 *) Disable rogue ciphersuites:
654 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
655 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
656 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
658 The latter two were purportedly from
659 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
662 Also deactivate the remaining ciphersuites from
663 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
664 unofficial, and the ID has long expired.
667 *) Fix RSA blinding Heisenbug (problems sometimes occured on
668 dual-core machines) and other potential thread-safety issues.
671 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
672 versions), which is now available for royalty-free use
673 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
674 Also, add Camellia TLS ciphersuites from RFC 4132.
676 To minimize changes between patchlevels in the OpenSSL 0.9.8
677 series, Camellia remains excluded from compilation unless OpenSSL
678 is configured with 'enable-camellia'.
681 *) Disable the padding bug check when compression is in use. The padding
682 bug check assumes the first packet is of even length, this is not
683 necessarily true if compresssion is enabled and can result in false
684 positives causing handshake failure. The actual bug test is ancient
685 code so it is hoped that implementations will either have fixed it by
686 now or any which still have the bug do not support compression.
689 Changes between 0.9.8a and 0.9.8b [04 May 2006]
691 *) When applying a cipher rule check to see if string match is an explicit
692 cipher suite and only match that one cipher suite if it is.
695 *) Link in manifests for VC++ if needed.
696 [Austin Ziegler <halostatue@gmail.com>]
698 *) Update support for ECC-based TLS ciphersuites according to
699 draft-ietf-tls-ecc-12.txt with proposed changes (but without
700 TLS extensions, which are supported starting with the 0.9.9
701 branch, not in the OpenSSL 0.9.8 branch).
704 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
705 opaque EVP_CIPHER_CTX handling.
708 *) Fixes and enhancements to zlib compression code. We now only use
709 "zlib1.dll" and use the default __cdecl calling convention on Win32
710 to conform with the standards mentioned here:
711 http://www.zlib.net/DLL_FAQ.txt
712 Static zlib linking now works on Windows and the new --with-zlib-include
713 --with-zlib-lib options to Configure can be used to supply the location
714 of the headers and library. Gracefully handle case where zlib library
718 *) Several fixes and enhancements to the OID generation code. The old code
719 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
720 handle numbers larger than ULONG_MAX, truncated printing and had a
721 non standard OBJ_obj2txt() behaviour.
724 *) Add support for building of engines under engine/ as shared libraries
725 under VC++ build system.
728 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
729 Hopefully, we will not see any false combination of paths any more.
732 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
734 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
735 (part of SSL_OP_ALL). This option used to disable the
736 countermeasure against man-in-the-middle protocol-version
737 rollback in the SSL 2.0 server implementation, which is a bad
738 idea. (CVE-2005-2969)
740 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
741 for Information Security, National Institute of Advanced Industrial
742 Science and Technology [AIST], Japan)]
744 *) Add two function to clear and return the verify parameter flags.
747 *) Keep cipherlists sorted in the source instead of sorting them at
748 runtime, thus removing the need for a lock.
751 *) Avoid some small subgroup attacks in Diffie-Hellman.
752 [Nick Mathewson and Ben Laurie]
754 *) Add functions for well-known primes.
757 *) Extended Windows CE support.
758 [Satoshi Nakamura and Andy Polyakov]
760 *) Initialize SSL_METHOD structures at compile time instead of during
761 runtime, thus removing the need for a lock.
764 *) Make PKCS7_decrypt() work even if no certificate is supplied by
765 attempting to decrypt each encrypted key in turn. Add support to
769 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
771 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
774 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
777 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
778 key into the same file any more.
781 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
784 *) Add -utf8 command line and config file option to 'ca'.
785 [Stefan <stf@udoma.org]
787 *) Removed the macro des_crypt(), as it seems to conflict with some
788 libraries. Use DES_crypt().
791 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
792 involves renaming the source and generated shared-libs for
793 both. The engines will accept the corrected or legacy ids
794 ('ncipher' and '4758_cca' respectively) when binding. NB,
795 this only applies when building 'shared'.
796 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
798 *) Add attribute functions to EVP_PKEY structure. Modify
799 PKCS12_create() to recognize a CSP name attribute and
800 use it. Make -CSP option work again in pkcs12 utility.
803 *) Add new functionality to the bn blinding code:
804 - automatic re-creation of the BN_BLINDING parameters after
805 a fixed number of uses (currently 32)
806 - add new function for parameter creation
807 - introduce flags to control the update behaviour of the
808 BN_BLINDING parameters
809 - hide BN_BLINDING structure
810 Add a second BN_BLINDING slot to the RSA structure to improve
811 performance when a single RSA object is shared among several
815 *) Add support for DTLS.
816 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
818 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
819 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
822 *) Remove buggy and incompletet DH cert support from
823 ssl/ssl_rsa.c and ssl/s3_both.c
826 *) Use SHA-1 instead of MD5 as the default digest algorithm for
827 the apps/openssl applications.
830 *) Compile clean with "-Wall -Wmissing-prototypes
831 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
832 DEBUG_SAFESTACK must also be set.
835 *) Change ./Configure so that certain algorithms can be disabled by default.
836 The new counterpiece to "no-xxx" is "enable-xxx".
838 The patented RC5 and MDC2 algorithms will now be disabled unless
839 "enable-rc5" and "enable-mdc2", respectively, are specified.
841 (IDEA remains enabled despite being patented. This is because IDEA
842 is frequently required for interoperability, and there is no license
843 fee for non-commercial use. As before, "no-idea" can be used to
844 avoid this algorithm.)
848 *) Add processing of proxy certificates (see RFC 3820). This work was
849 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
850 EGEE (Enabling Grids for E-science in Europe).
853 *) RC4 performance overhaul on modern architectures/implementations, such
854 as Intel P4, IA-64 and AMD64.
857 *) New utility extract-section.pl. This can be used specify an alternative
858 section number in a pod file instead of having to treat each file as
859 a separate case in Makefile. This can be done by adding two lines to the
862 =for comment openssl_section:XXX
864 The blank line is mandatory.
868 *) New arguments -certform, -keyform and -pass for s_client and s_server
869 to allow alternative format key and certificate files and passphrase
873 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
874 update associated structures and add various utility functions.
876 Add new policy related verify parameters, include policy checking in
877 standard verify code. Enhance 'smime' application with extra parameters
878 to support policy checking and print out.
881 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
882 Nehemiah processors. These extensions support AES encryption in hardware
883 as well as RNG (though RNG support is currently disabled).
884 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
886 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
889 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
890 [Andy Polyakov and a number of other people]
892 *) Improved PowerPC platform support. Most notably BIGNUM assembler
893 implementation contributed by IBM.
894 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
896 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
897 exponent rather than 'unsigned long'. There is a corresponding change to
898 the new 'rsa_keygen' element of the RSA_METHOD structure.
899 [Jelte Jansen, Geoff Thorpe]
901 *) Functionality for creating the initial serial number file is now
902 moved from CA.pl to the 'ca' utility with a new option -create_serial.
904 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
905 number file to 1, which is bound to cause problems. To avoid
906 the problems while respecting compatibility between different 0.9.7
907 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
908 CA.pl for serial number initialization. With the new release 0.9.8,
909 we can fix the problem directly in the 'ca' utility.)
912 *) Reduced header interdepencies by declaring more opaque objects in
913 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
914 give fewer recursive includes, which could break lazy source code - so
915 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
916 developers should define this symbol when building and using openssl to
917 ensure they track the recommended behaviour, interfaces, [etc], but
918 backwards-compatible behaviour prevails when this isn't defined.
921 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
924 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
925 This will generate a random key of the appropriate length based on the
926 cipher context. The EVP_CIPHER can provide its own random key generation
927 routine to support keys of a specific form. This is used in the des and
928 3des routines to generate a key of the correct parity. Update S/MIME
929 code to use new functions and hence generate correct parity DES keys.
930 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
931 valid (weak or incorrect parity).
934 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
935 as looking them up. This is useful when the verified structure may contain
936 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
937 present unless the new PKCS7_NO_CRL flag is asserted.
940 *) Extend ASN1 oid configuration module. It now additionally accepts the
943 shortName = some long name, 1.2.3.4
946 *) Reimplemented the BN_CTX implementation. There is now no more static
947 limitation on the number of variables it can handle nor the depth of the
948 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
949 information can now expand as required, and rather than having a single
950 static array of bignums, BN_CTX now uses a linked-list of such arrays
951 allowing it to expand on demand whilst maintaining the usefulness of
955 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
956 to allow all RSA operations to function using a single BN_CTX.
959 *) Preliminary support for certificate policy evaluation and checking. This
960 is initially intended to pass the tests outlined in "Conformance Testing
961 of Relying Party Client Certificate Path Processing Logic" v1.07.
964 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
965 remained unused and not that useful. A variety of other little bignum
966 tweaks and fixes have also been made continuing on from the audit (see
970 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
971 associated ASN1, EVP and SSL functions and old ASN1 macros.
974 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
975 and this should never fail. So the return value from the use of
976 BN_set_word() (which can fail due to needless expansion) is now deprecated;
977 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
980 *) BN_CTX_get() should return zero-valued bignums, providing the same
981 initialised value as BN_new().
982 [Geoff Thorpe, suggested by Ulf Möller]
984 *) Support for inhibitAnyPolicy certificate extension.
987 *) An audit of the BIGNUM code is underway, for which debugging code is
988 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
989 is considered valid when processing BIGNUMs, and causes execution to
990 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
991 further steps are taken to deliberately pollute unused data in BIGNUM
992 structures to try and expose faulty code further on. For now, openssl will
993 (in its default mode of operation) continue to tolerate the inconsistent
994 forms that it has tolerated in the past, but authors and packagers should
995 consider trying openssl and their own applications when compiled with
996 these debugging symbols defined. It will help highlight potential bugs in
997 their own code, and will improve the test coverage for OpenSSL itself. At
998 some point, these tighter rules will become openssl's default to improve
999 maintainability, though the assert()s and other overheads will remain only
1000 in debugging configurations. See bn.h for more details.
1001 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1003 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1004 that can only be obtained through BN_CTX_new() (which implicitly
1005 initialises it). The presence of this function only made it possible
1006 to overwrite an existing structure (and cause memory leaks).
1009 *) Because of the callback-based approach for implementing LHASH as a
1010 template type, lh_insert() adds opaque objects to hash-tables and
1011 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1012 to clean up those corresponding objects before destroying the hash table
1013 (and losing the object pointers). So some over-zealous constifications in
1014 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1015 objects as "const" and the lh_doall[_arg] callback wrappers are not
1016 prototyped to have "const" restrictions on the object pointers they are
1017 given (and so aren't required to cast them away any more).
1020 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1021 (speed) prefers to use its own implementation. The two implementations
1022 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1023 its object type properly exposed (MS_TM) instead of casting to/from "char
1024 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1025 aren't necessarily the greatest nomenclatures - but this is what was used
1026 internally to the implementation so I've used that for now.
1029 *) Ensure that deprecated functions do not get compiled when
1030 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1031 the self-tests were still using deprecated key-generation functions so
1032 these have been updated also.
1035 *) Reorganise PKCS#7 code to separate the digest location functionality
1036 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1037 New function PKCS7_set_digest() to set the digest type for PKCS#7
1038 digestedData type. Add additional code to correctly generate the
1039 digestedData type and add support for this type in PKCS7 initialization
1043 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1044 structure of type "other".
1047 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1048 sure the loop does correctly stop and breaking ("division by zero")
1049 modulus operations are not performed. The (pre-generated) prime
1050 table crypto/bn/bn_prime.h was already correct, but it could not be
1051 re-generated on some platforms because of the "division by zero"
1052 situation in the script.
1053 [Ralf S. Engelschall]
1055 *) Update support for ECC-based TLS ciphersuites according to
1056 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1057 SHA-1 now is only used for "small" curves (where the
1058 representation of a field element takes up to 24 bytes); for
1059 larger curves, the field element resulting from ECDH is directly
1060 used as premaster secret.
1061 [Douglas Stebila (Sun Microsystems Laboratories)]
1063 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1064 curve secp160r1 to the tests.
1065 [Douglas Stebila (Sun Microsystems Laboratories)]
1067 *) Add the possibility to load symbols globally with DSO.
1068 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1070 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1071 control of the error stack.
1074 *) Add support for STORE in ENGINE.
1077 *) Add the STORE type. The intention is to provide a common interface
1078 to certificate and key stores, be they simple file-based stores, or
1079 HSM-type store, or LDAP stores, or...
1080 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1083 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1084 pass a list of arguments to any function as well as provide a way
1085 for a function to pass data back to the caller.
1088 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1089 works like BUF_strdup() but can be used to duplicate a portion of
1090 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1094 *) Add the function sk_find_ex() which works like sk_find(), but will
1095 return an index to an element even if an exact match couldn't be
1096 found. The index is guaranteed to point at the element where the
1097 searched-for key would be inserted to preserve sorting order.
1100 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1101 takes an extra flags argument for optional functionality. Currently,
1102 the following flags are defined:
1104 OBJ_BSEARCH_VALUE_ON_NOMATCH
1105 This one gets OBJ_bsearch_ex() to return a pointer to the first
1106 element where the comparing function returns a negative or zero
1109 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1110 This one gets OBJ_bsearch_ex() to return a pointer to the first
1111 element where the comparing function returns zero. This is useful
1112 if there are more than one element where the comparing function
1116 *) Make it possible to create self-signed certificates with 'openssl ca'
1117 in such a way that the self-signed certificate becomes part of the
1118 CA database and uses the same mechanisms for serial number generation
1119 as all other certificate signing. The new flag '-selfsign' enables
1120 this functionality. Adapt CA.sh and CA.pl.in.
1123 *) Add functionality to check the public key of a certificate request
1124 against a given private. This is useful to check that a certificate
1125 request can be signed by that key (self-signing).
1128 *) Make it possible to have multiple active certificates with the same
1129 subject in the CA index file. This is done only if the keyword
1130 'unique_subject' is set to 'no' in the main CA section (default
1131 if 'CA_default') of the configuration file. The value is saved
1132 with the database itself in a separate index attribute file,
1133 named like the index file with '.attr' appended to the name.
1136 *) Generate muti valued AVAs using '+' notation in config files for
1140 *) Support for nameConstraints certificate extension.
1143 *) Support for policyConstraints certificate extension.
1146 *) Support for policyMappings certificate extension.
1149 *) Make sure the default DSA_METHOD implementation only uses its
1150 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1151 and change its own handlers to be NULL so as to remove unnecessary
1152 indirection. This lets alternative implementations fallback to the
1153 default implementation more easily.
1156 *) Support for directoryName in GeneralName related extensions
1160 *) Make it possible to link applications using Makefile.shared.
1161 Make that possible even when linking against static libraries!
1164 *) Support for single pass processing for S/MIME signing. This now
1165 means that S/MIME signing can be done from a pipe, in addition
1166 cleartext signing (multipart/signed type) is effectively streaming
1167 and the signed data does not need to be all held in memory.
1169 This is done with a new flag PKCS7_STREAM. When this flag is set
1170 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1171 is done after the data is output (and digests calculated) in
1172 SMIME_write_PKCS7().
1175 *) Add full support for -rpath/-R, both in shared libraries and
1176 applications, at least on the platforms where it's known how
1180 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1181 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1182 will now compute a table of multiples of the generator that
1183 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1184 faster (notably in the case of a single point multiplication,
1185 scalar * generator).
1186 [Nils Larsch, Bodo Moeller]
1188 *) IPv6 support for certificate extensions. The various extensions
1189 which use the IP:a.b.c.d can now take IPv6 addresses using the
1190 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1194 *) Added an ENGINE that implements RSA by performing private key
1195 exponentiations with the GMP library. The conversions to and from
1196 GMP's mpz_t format aren't optimised nor are any montgomery forms
1197 cached, and on x86 it appears OpenSSL's own performance has caught up.
1198 However there are likely to be other architectures where GMP could
1199 provide a boost. This ENGINE is not built in by default, but it can be
1200 specified at Configure time and should be accompanied by the necessary
1201 linker additions, eg;
1202 ./config -DOPENSSL_USE_GMP -lgmp
1205 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1206 testing availability of engines with "-t" - the old behaviour is
1207 produced by increasing the feature's verbosity with "-tt".
1210 *) ECDSA routines: under certain error conditions uninitialized BN objects
1211 could be freed. Solution: make sure initialization is performed early
1212 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1216 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1217 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1218 software implementations. For DSA and DH, parameter generation can
1219 also be overriden by providing the appropriate method callbacks.
1222 *) Change the "progress" mechanism used in key-generation and
1223 primality testing to functions that take a new BN_GENCB pointer in
1224 place of callback/argument pairs. The new API functions have "_ex"
1225 postfixes and the older functions are reimplemented as wrappers for
1226 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1227 declarations of the old functions to help (graceful) attempts to
1228 migrate to the new functions. Also, the new key-generation API
1229 functions operate on a caller-supplied key-structure and return
1230 success/failure rather than returning a key or NULL - this is to
1231 help make "keygen" another member function of RSA_METHOD etc.
1233 Example for using the new callback interface:
1235 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1239 BN_GENCB_set(&my_cb, my_callback, my_arg);
1241 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1242 /* For the meaning of a, b in calls to my_callback(), see the
1243 * documentation of the function that calls the callback.
1244 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1245 * my_callback should return 1 if it wants BN_is_prime_ex()
1246 * to continue, or 0 to stop.
1251 *) Change the ZLIB compression method to be stateful, and make it
1252 available to TLS with the number defined in
1253 draft-ietf-tls-compression-04.txt.
1256 *) Add the ASN.1 structures and functions for CertificatePair, which
1257 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1259 CertificatePair ::= SEQUENCE {
1260 forward [0] Certificate OPTIONAL,
1261 reverse [1] Certificate OPTIONAL,
1262 -- at least one of the pair shall be present -- }
1264 Also implement the PEM functions to read and write certificate
1265 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1267 This needed to be defined, mostly for the sake of the LDAP
1268 attribute crossCertificatePair, but may prove useful elsewhere as
1272 *) Make it possible to inhibit symlinking of shared libraries in
1273 Makefile.shared, for Cygwin's sake.
1276 *) Extend the BIGNUM API by creating a function
1277 void BN_set_negative(BIGNUM *a, int neg);
1278 and a macro that behave like
1279 int BN_is_negative(const BIGNUM *a);
1281 to avoid the need to access 'a->neg' directly in applications.
1284 *) Implement fast modular reduction for pseudo-Mersenne primes
1285 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1286 EC_GROUP_new_curve_GFp() will now automatically use this
1288 [Nils Larsch <nla@trustcenter.de>]
1290 *) Add new lock type (CRYPTO_LOCK_BN).
1293 *) Change the ENGINE framework to automatically load engines
1294 dynamically from specific directories unless they could be
1295 found to already be built in or loaded. Move all the
1296 current engines except for the cryptodev one to a new
1298 The engines in engines/ are built as shared libraries if
1299 the "shared" options was given to ./Configure or ./config.
1300 Otherwise, they are inserted in libcrypto.a.
1301 /usr/local/ssl/engines is the default directory for dynamic
1302 engines, but that can be overriden at configure time through
1303 the usual use of --prefix and/or --openssldir, and at run
1304 time with the environment variable OPENSSL_ENGINES.
1305 [Geoff Thorpe and Richard Levitte]
1307 *) Add Makefile.shared, a helper makefile to build shared
1308 libraries. Addapt Makefile.org.
1311 *) Add version info to Win32 DLLs.
1312 [Peter 'Luna' Runestig" <peter@runestig.com>]
1314 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1315 can be added using this API to created arbitrary PKCS#12
1316 files while avoiding the low level API.
1318 New options to PKCS12_create(), key or cert can be NULL and
1319 will then be omitted from the output file. The encryption
1320 algorithm NIDs can be set to -1 for no encryption, the mac
1321 iteration count can be set to 0 to omit the mac.
1323 Enhance pkcs12 utility by making the -nokeys and -nocerts
1324 options work when creating a PKCS#12 file. New option -nomac
1325 to omit the mac, NONE can be set for an encryption algorithm.
1326 New code is modified to use the enhanced PKCS12_create()
1327 instead of the low level API.
1330 *) Extend ASN1 encoder to support indefinite length constructed
1331 encoding. This can output sequences tags and octet strings in
1332 this form. Modify pk7_asn1.c to support indefinite length
1333 encoding. This is experimental and needs additional code to
1334 be useful, such as an ASN1 bio and some enhanced streaming
1337 Extend template encode functionality so that tagging is passed
1338 down to the template encoder.
1341 *) Let 'openssl req' fail if an argument to '-newkey' is not
1342 recognized instead of using RSA as a default.
1345 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1346 As these are not official, they are not included in "ALL";
1347 the "ECCdraft" ciphersuite group alias can be used to select them.
1348 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1350 *) Add ECDH engine support.
1351 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1353 *) Add ECDH in new directory crypto/ecdh/.
1354 [Douglas Stebila (Sun Microsystems Laboratories)]
1356 *) Let BN_rand_range() abort with an error after 100 iterations
1357 without success (which indicates a broken PRNG).
1360 *) Change BN_mod_sqrt() so that it verifies that the input value
1361 is really the square of the return value. (Previously,
1362 BN_mod_sqrt would show GIGO behaviour.)
1365 *) Add named elliptic curves over binary fields from X9.62, SECG,
1366 and WAP/WTLS; add OIDs that were still missing.
1368 [Sheueling Chang Shantz and Douglas Stebila
1369 (Sun Microsystems Laboratories)]
1371 *) Extend the EC library for elliptic curves over binary fields
1372 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1375 EC_GF2m_simple_method
1379 EC_GROUP_new_curve_GF2m
1380 EC_GROUP_set_curve_GF2m
1381 EC_GROUP_get_curve_GF2m
1382 EC_POINT_set_affine_coordinates_GF2m
1383 EC_POINT_get_affine_coordinates_GF2m
1384 EC_POINT_set_compressed_coordinates_GF2m
1386 Point compression for binary fields is disabled by default for
1387 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1390 As binary polynomials are represented as BIGNUMs, various members
1391 of the EC_GROUP and EC_POINT data structures can be shared
1392 between the implementations for prime fields and binary fields;
1393 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1394 are essentially identical to their ..._GFp counterparts.
1395 (For simplicity, the '..._GFp' prefix has been dropped from
1396 various internal method names.)
1398 An internal 'field_div' method (similar to 'field_mul' and
1399 'field_sqr') has been added; this is used only for binary fields.
1401 [Sheueling Chang Shantz and Douglas Stebila
1402 (Sun Microsystems Laboratories)]
1404 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1405 through methods ('mul', 'precompute_mult').
1407 The generic implementations (now internally called 'ec_wNAF_mul'
1408 and 'ec_wNAF_precomputed_mult') remain the default if these
1409 methods are undefined.
1411 [Sheueling Chang Shantz and Douglas Stebila
1412 (Sun Microsystems Laboratories)]
1414 *) New function EC_GROUP_get_degree, which is defined through
1415 EC_METHOD. For curves over prime fields, this returns the bit
1416 length of the modulus.
1418 [Sheueling Chang Shantz and Douglas Stebila
1419 (Sun Microsystems Laboratories)]
1421 *) New functions EC_GROUP_dup, EC_POINT_dup.
1422 (These simply call ..._new and ..._copy).
1424 [Sheueling Chang Shantz and Douglas Stebila
1425 (Sun Microsystems Laboratories)]
1427 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1428 Polynomials are represented as BIGNUMs (where the sign bit is not
1429 used) in the following functions [macros]:
1432 BN_GF2m_sub [= BN_GF2m_add]
1433 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1434 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1435 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1437 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1438 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1439 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1440 BN_GF2m_cmp [= BN_ucmp]
1442 (Note that only the 'mod' functions are actually for fields GF(2^m).
1443 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1445 For some functions, an the irreducible polynomial defining a
1446 field can be given as an 'unsigned int[]' with strictly
1447 decreasing elements giving the indices of those bits that are set;
1448 i.e., p[] represents the polynomial
1449 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1451 p[0] > p[1] > ... > p[k] = 0.
1452 This applies to the following functions:
1457 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1458 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1460 BN_GF2m_mod_sqrt_arr
1461 BN_GF2m_mod_solve_quad_arr
1465 Conversion can be performed by the following functions:
1470 bntest.c has additional tests for binary polynomial arithmetic.
1472 Two implementations for BN_GF2m_mod_div() are available.
1473 The default algorithm simply uses BN_GF2m_mod_inv() and
1474 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1475 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1476 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1478 [Sheueling Chang Shantz and Douglas Stebila
1479 (Sun Microsystems Laboratories)]
1481 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1482 functionality is disabled at compile-time.
1483 [Douglas Stebila <douglas.stebila@sun.com>]
1485 *) Change default behaviour of 'openssl asn1parse' so that more
1486 information is visible when viewing, e.g., a certificate:
1488 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1489 mode the content of non-printable OCTET STRINGs is output in a
1490 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1491 avoid the appearance of a printable string.
1492 [Nils Larsch <nla@trustcenter.de>]
1494 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1496 EC_GROUP_set_asn1_flag()
1497 EC_GROUP_get_asn1_flag()
1498 EC_GROUP_set_point_conversion_form()
1499 EC_GROUP_get_point_conversion_form()
1500 These control ASN1 encoding details:
1501 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1502 has been set to OPENSSL_EC_NAMED_CURVE.
1503 - Points are encoded in uncompressed form by default; options for
1504 asn1_for are as for point2oct, namely
1505 POINT_CONVERSION_COMPRESSED
1506 POINT_CONVERSION_UNCOMPRESSED
1507 POINT_CONVERSION_HYBRID
1509 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1512 EC_GROUP_get0_seed()
1513 EC_GROUP_get_seed_len()
1514 This is used only for ASN1 purposes (so far).
1515 [Nils Larsch <nla@trustcenter.de>]
1517 *) Add 'field_type' member to EC_METHOD, which holds the NID
1518 of the appropriate field type OID. The new function
1519 EC_METHOD_get_field_type() returns this value.
1520 [Nils Larsch <nla@trustcenter.de>]
1525 EC_POINT_point2hex()
1526 EC_POINT_hex2point()
1527 providing useful interfaces to EC_POINT_point2oct() and
1528 EC_POINT_oct2point().
1529 [Nils Larsch <nla@trustcenter.de>]
1531 *) Change internals of the EC library so that the functions
1532 EC_GROUP_set_generator()
1533 EC_GROUP_get_generator()
1534 EC_GROUP_get_order()
1535 EC_GROUP_get_cofactor()
1536 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1537 to methods, which would lead to unnecessary code duplication when
1538 adding different types of curves.
1539 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1541 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1542 arithmetic, and such that modified wNAFs are generated
1543 (which avoid length expansion in many cases).
1546 *) Add a function EC_GROUP_check_discriminant() (defined via
1547 EC_METHOD) that verifies that the curve discriminant is non-zero.
1549 Add a function EC_GROUP_check() that makes some sanity tests
1550 on a EC_GROUP, its generator and order. This includes
1551 EC_GROUP_check_discriminant().
1552 [Nils Larsch <nla@trustcenter.de>]
1554 *) Add ECDSA in new directory crypto/ecdsa/.
1556 Add applications 'openssl ecparam' and 'openssl ecdsa'
1557 (these are based on 'openssl dsaparam' and 'openssl dsa').
1559 ECDSA support is also included in various other files across the
1560 library. Most notably,
1561 - 'openssl req' now has a '-newkey ecdsa:file' option;
1562 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1563 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1564 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1565 them suitable for ECDSA where domain parameters must be
1566 extracted before the specific public key;
1567 - ECDSA engine support has been added.
1568 [Nils Larsch <nla@trustcenter.de>]
1570 *) Include some named elliptic curves, and add OIDs from X9.62,
1571 SECG, and WAP/WTLS. Each curve can be obtained from the new
1573 EC_GROUP_new_by_curve_name(),
1574 and the list of available named curves can be obtained with
1575 EC_get_builtin_curves().
1576 Also add a 'curve_name' member to EC_GROUP objects, which can be
1578 EC_GROUP_set_curve_name()
1579 EC_GROUP_get_curve_name()
1580 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1582 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1583 was actually never needed) and in BN_mul(). The removal in BN_mul()
1584 required a small change in bn_mul_part_recursive() and the addition
1585 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1586 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1587 bn_sub_words() and bn_add_words() except they take arrays with
1591 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1593 *) In the SSL/TLS server implementation, be strict about session ID
1594 context matching (which matters if an application uses a single
1595 external cache for different purposes). Previously,
1596 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1597 set. This did ensure strict client verification, but meant that,
1598 with applications using a single external cache for quite
1599 different requirements, clients could circumvent ciphersuite
1600 restrictions for a given session ID context by starting a session
1601 in a different context.
1604 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1606 *) Cleanse PEM buffers before freeing them since they may contain
1608 [Benjamin Bennett <ben@psc.edu>]
1610 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1611 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1612 authentication-only ciphersuites.
1615 *) Since AES128 and AES256 share a single mask bit in the logic of
1616 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1617 kludge to work properly if AES128 is available and AES256 isn't.
1620 *) Expand security boundary to match 1.1.1 module.
1623 *) Remove redundant features: hash file source, editing of test vectors
1624 modify fipsld to use external fips_premain.c signature.
1627 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1628 run algorithm test programs.
1631 *) Make algorithm test programs more tolerant of whitespace.
1634 *) Have SSL/TLS server implementation tolerate "mismatched" record
1635 protocol version while receiving ClientHello even if the
1636 ClientHello is fragmented. (The server can't insist on the
1637 particular protocol version it has chosen before the ServerHello
1638 message has informed the client about his choice.)
1641 *) Load error codes if they are not already present instead of using a
1642 static variable. This allows them to be cleanly unloaded and reloaded.
1645 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1647 *) Introduce limits to prevent malicious keys being able to
1648 cause a denial of service. (CVE-2006-2940)
1649 [Steve Henson, Bodo Moeller]
1651 *) Fix ASN.1 parsing of certain invalid structures that can result
1652 in a denial of service. (CVE-2006-2937) [Steve Henson]
1654 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1655 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1657 *) Fix SSL client code which could crash if connecting to a
1658 malicious SSLv2 server. (CVE-2006-4343)
1659 [Tavis Ormandy and Will Drewry, Google Security Team]
1661 *) Change ciphersuite string processing so that an explicit
1662 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1663 will no longer include "AES128-SHA"), and any other similar
1664 ciphersuite (same bitmap) from *other* protocol versions (so that
1665 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1666 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1667 changes from 0.9.8b and 0.9.8d.
1670 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1672 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1673 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1675 *) Change the Unix randomness entropy gathering to use poll() when
1676 possible instead of select(), since the latter has some
1677 undesirable limitations.
1678 [Darryl Miles via Richard Levitte and Bodo Moeller]
1680 *) Disable rogue ciphersuites:
1682 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1683 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1684 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1686 The latter two were purportedly from
1687 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1690 Also deactive the remaining ciphersuites from
1691 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1692 unofficial, and the ID has long expired.
1695 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1696 dual-core machines) and other potential thread-safety issues.
1699 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1701 *) Adapt fipsld and the build system to link against the validated FIPS
1702 module in FIPS mode.
1705 *) Fixes for VC++ 2005 build under Windows.
1708 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1709 from a Windows bash shell such as MSYS. It is autodetected from the
1710 "config" script when run from a VC++ environment. Modify standard VC++
1711 build to use fipscanister.o from the GNU make build.
1714 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1716 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1717 The value now differs depending on if you build for FIPS or not.
1718 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1719 safely run with a non-FIPSed libcrypto, as it may crash because of
1720 the difference induced by this change.
1723 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1725 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1726 (part of SSL_OP_ALL). This option used to disable the
1727 countermeasure against man-in-the-middle protocol-version
1728 rollback in the SSL 2.0 server implementation, which is a bad
1729 idea. (CVE-2005-2969)
1731 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1732 for Information Security, National Institute of Advanced Industrial
1733 Science and Technology [AIST], Japan)]
1735 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1736 mainly for FIPS compliance and not fully integrated at this stage.
1739 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1740 the exponentiation using a fixed-length exponent. (Otherwise,
1741 the information leaked through timing could expose the secret key
1742 after many signatures; cf. Bleichenbacher's attack on DSA with
1746 *) Make a new fixed-window mod_exp implementation the default for
1747 RSA, DSA, and DH private-key operations so that the sequence of
1748 squares and multiplies and the memory access pattern are
1749 independent of the particular secret key. This will mitigate
1750 cache-timing and potential related attacks.
1752 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1753 and this is automatically used by BN_mod_exp_mont() if the new flag
1754 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1755 will use this BN flag for private exponents unless the flag
1756 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1757 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1759 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1761 *) Change the client implementation for SSLv23_method() and
1762 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1763 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1764 (Previously, the SSL 2.0 backwards compatible Client Hello
1765 message format would be used even with SSL_OP_NO_SSLv2.)
1768 *) Add support for smime-type MIME parameter in S/MIME messages which some
1772 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1773 a threadsafe manner. Modify rsa code to use new function and add calls
1774 to dsa and dh code (which had race conditions before).
1777 *) Include the fixed error library code in the C error file definitions
1778 instead of fixing them up at runtime. This keeps the error code
1779 structures constant.
1782 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1784 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1787 *) Fixes for newer kerberos headers. NB: the casts are needed because
1788 the 'length' field is signed on one version and unsigned on another
1789 with no (?) obvious way to tell the difference, without these VC++
1790 complains. Also the "definition" of FAR (blank) is no longer included
1791 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1792 some needed definitions.
1795 *) Undo Cygwin change.
1798 *) Added support for proxy certificates according to RFC 3820.
1799 Because they may be a security thread to unaware applications,
1800 they must be explicitely allowed in run-time. See
1801 docs/HOWTO/proxy_certificates.txt for further information.
1804 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1806 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1807 server and client random values. Previously
1808 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1809 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1811 This change has negligible security impact because:
1813 1. Server and client random values still have 24 bytes of pseudo random
1816 2. Server and client random values are sent in the clear in the initial
1819 3. The master secret is derived using the premaster secret (48 bytes in
1820 size for static RSA ciphersuites) as well as client server and random
1823 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1826 [Stephen Henson, reported by UK NISCC]
1828 *) Use Windows randomness collection on Cygwin.
1831 *) Fix hang in EGD/PRNGD query when communication socket is closed
1832 prematurely by EGD/PRNGD.
1833 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1835 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1838 *) Back-port of selected performance improvements from development
1839 branch, as well as improved support for PowerPC platforms.
1842 *) Add lots of checks for memory allocation failure, error codes to indicate
1843 failure and freeing up memory if a failure occurs.
1844 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1846 *) Add new -passin argument to dgst.
1849 *) Perform some character comparisons of different types in X509_NAME_cmp:
1850 this is needed for some certificates that reencode DNs into UTF8Strings
1851 (in violation of RFC3280) and can't or wont issue name rollover
1855 *) Make an explicit check during certificate validation to see that
1856 the CA setting in each certificate on the chain is correct. As a
1857 side effect always do the following basic checks on extensions,
1858 not just when there's an associated purpose to the check:
1860 - if there is an unhandled critical extension (unless the user
1861 has chosen to ignore this fault)
1862 - if the path length has been exceeded (if one is set at all)
1863 - that certain extensions fit the associated purpose (if one has
1867 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1869 *) Avoid a race condition when CRLs are checked in a multi threaded
1870 environment. This would happen due to the reordering of the revoked
1871 entries during signature checking and serial number lookup. Now the
1872 encoding is cached and the serial number sort performed under a lock.
1873 Add new STACK function sk_is_sorted().
1876 *) Add Delta CRL to the extension code.
1879 *) Various fixes to s3_pkt.c so alerts are sent properly.
1880 [David Holmes <d.holmes@f5.com>]
1882 *) Reduce the chances of duplicate issuer name and serial numbers (in
1883 violation of RFC3280) using the OpenSSL certificate creation utilities.
1884 This is done by creating a random 64 bit value for the initial serial
1885 number when a serial number file is created or when a self signed
1886 certificate is created using 'openssl req -x509'. The initial serial
1887 number file is created using 'openssl x509 -next_serial' in CA.pl
1888 rather than being initialized to 1.
1891 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1893 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1894 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1895 [Joe Orton, Steve Henson]
1897 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1899 [Joe Orton, Steve Henson]
1901 *) Make it possible to have multiple active certificates with the same
1902 subject in the CA index file. This is done only if the keyword
1903 'unique_subject' is set to 'no' in the main CA section (default
1904 if 'CA_default') of the configuration file. The value is saved
1905 with the database itself in a separate index attribute file,
1906 named like the index file with '.attr' appended to the name.
1909 *) X509 verify fixes. Disable broken certificate workarounds when
1910 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1911 keyUsage extension present. Don't accept CRLs with unhandled critical
1912 extensions: since verify currently doesn't process CRL extensions this
1913 rejects a CRL with *any* critical extensions. Add new verify error codes
1917 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1918 A clarification of RFC2560 will require the use of OCTET STRINGs and
1919 some implementations cannot handle the current raw format. Since OpenSSL
1920 copies and compares OCSP nonces as opaque blobs without any attempt at
1921 parsing them this should not create any compatibility issues.
1924 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1925 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1926 this HMAC (and other) operations are several times slower than OpenSSL
1930 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1931 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1933 *) Use the correct content when signing type "other".
1936 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1938 *) Fix various bugs revealed by running the NISCC test suite:
1940 Stop out of bounds reads in the ASN1 code when presented with
1941 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1943 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1945 If verify callback ignores invalid public key errors don't try to check
1946 certificate signature with the NULL public key.
1950 *) New -ignore_err option in ocsp application to stop the server
1951 exiting on the first error in a request.
1954 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1955 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1959 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1960 extra data after the compression methods not only for TLS 1.0
1961 but also for SSL 3.0 (as required by the specification).
1962 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1964 *) Change X509_certificate_type() to mark the key as exported/exportable
1965 when it's 512 *bits* long, not 512 bytes.
1968 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1969 blocks during encryption.
1972 *) Various fixes to base64 BIO and non blocking I/O. On write
1973 flushes were not handled properly if the BIO retried. On read
1974 data was not being buffered properly and had various logic bugs.
1975 This also affects blocking I/O when the data being decoded is a
1979 *) Various S/MIME bugfixes and compatibility changes:
1980 output correct application/pkcs7 MIME type if
1981 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1982 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1983 of files as .eml work). Correctly handle very long lines in MIME
1987 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1989 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1990 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1991 a protocol version number mismatch like a decryption error
1992 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1995 *) Turn on RSA blinding by default in the default implementation
1996 to avoid a timing attack. Applications that don't want it can call
1997 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1998 They would be ill-advised to do so in most cases.
1999 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2001 *) Change RSA blinding code so that it works when the PRNG is not
2002 seeded (in this case, the secret RSA exponent is abused as
2003 an unpredictable seed -- if it is not unpredictable, there
2004 is no point in blinding anyway). Make RSA blinding thread-safe
2005 by remembering the creator's thread ID in rsa->blinding and
2006 having all other threads use local one-time blinding factors
2007 (this requires more computation than sharing rsa->blinding, but
2008 avoids excessive locking; and if an RSA object is not shared
2009 between threads, blinding will still be very fast).
2012 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2013 ENGINE as defaults for all supported algorithms irrespective of
2014 the 'flags' parameter. 'flags' is now honoured, so applications
2015 should make sure they are passing it correctly.
2018 *) Target "mingw" now allows native Windows code to be generated in
2019 the Cygwin environment as well as with the MinGW compiler.
2022 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2024 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2025 via timing by performing a MAC computation even if incorrrect
2026 block cipher padding has been found. This is a countermeasure
2027 against active attacks where the attacker has to distinguish
2028 between bad padding and a MAC verification error. (CVE-2003-0078)
2030 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2031 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2032 Martin Vuagnoux (EPFL, Ilion)]
2034 *) Make the no-err option work as intended. The intention with no-err
2035 is not to have the whole error stack handling routines removed from
2036 libcrypto, it's only intended to remove all the function name and
2037 reason texts, thereby removing some of the footprint that may not
2038 be interesting if those errors aren't displayed anyway.
2040 NOTE: it's still possible for any application or module to have it's
2041 own set of error texts inserted. The routines are there, just not
2042 used by default when no-err is given.
2045 *) Add support for FreeBSD on IA64.
2046 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2048 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2049 Kerberos function mit_des_cbc_cksum(). Before this change,
2050 the value returned by DES_cbc_cksum() was like the one from
2051 mit_des_cbc_cksum(), except the bytes were swapped.
2052 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2054 *) Allow an application to disable the automatic SSL chain building.
2055 Before this a rather primitive chain build was always performed in
2056 ssl3_output_cert_chain(): an application had no way to send the
2057 correct chain if the automatic operation produced an incorrect result.
2059 Now the chain builder is disabled if either:
2061 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2063 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2065 The reasoning behind this is that an application would not want the
2066 auto chain building to take place if extra chain certificates are
2067 present and it might also want a means of sending no additional
2068 certificates (for example the chain has two certificates and the
2072 *) Add the possibility to build without the ENGINE framework.
2073 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2075 *) Under Win32 gmtime() can return NULL: check return value in
2076 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2079 *) DSA routines: under certain error conditions uninitialized BN objects
2080 could be freed. Solution: make sure initialization is performed early
2081 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2082 Nils Larsch <nla@trustcenter.de> via PR#459)
2085 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2086 checked on reconnect on the client side, therefore session resumption
2087 could still fail with a "ssl session id is different" error. This
2088 behaviour is masked when SSL_OP_ALL is used due to
2089 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2090 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2091 followup to PR #377.
2094 *) IA-32 assembler support enhancements: unified ELF targets, support
2095 for SCO/Caldera platforms, fix for Cygwin shared build.
2098 *) Add support for FreeBSD on sparc64. As a consequence, support for
2099 FreeBSD on non-x86 processors is separate from x86 processors on
2100 the config script, much like the NetBSD support.
2101 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2103 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2105 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2108 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2109 code (06) was taken as the first octet of the session ID and the last
2110 octet was ignored consequently. As a result SSLv2 client side session
2111 caching could not have worked due to the session ID mismatch between
2113 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2117 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2118 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2122 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2123 seems that in spite of existing for more than a year, many application
2124 author have done nothing to provide the necessary callbacks, which
2125 means that this particular engine will not work properly anywhere.
2126 This is a very unfortunate situation which forces us, in the name
2127 of usability, to give the hw_ncipher.c a static lock, which is part
2129 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2130 appear in 0.9.8 or later. We EXPECT application authors to have
2131 dealt properly with this when 0.9.8 is released (unless we actually
2132 make such changes in the libcrypto locking code that changes will
2133 have to be made anyway).
2136 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2137 octets have been read, EOF or an error occurs. Without this change
2138 some truncated ASN1 structures will not produce an error.
2141 *) Disable Heimdal support, since it hasn't been fully implemented.
2142 Still give the possibility to force the use of Heimdal, but with
2143 warnings and a request that patches get sent to openssl-dev.
2146 *) Add the VC-CE target, introduce the WINCE sysname, and add
2147 INSTALL.WCE and appropriate conditionals to make it build.
2148 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2150 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2151 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2152 edit numbers of the version.
2153 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2155 *) Introduce safe string copy and catenation functions
2156 (BUF_strlcpy() and BUF_strlcat()).
2157 [Ben Laurie (CHATS) and Richard Levitte]
2159 *) Avoid using fixed-size buffers for one-line DNs.
2160 [Ben Laurie (CHATS)]
2162 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2163 resizing buffers containing secrets, and use where appropriate.
2164 [Ben Laurie (CHATS)]
2166 *) Avoid using fixed size buffers for configuration file location.
2167 [Ben Laurie (CHATS)]
2169 *) Avoid filename truncation for various CA files.
2170 [Ben Laurie (CHATS)]
2172 *) Use sizeof in preference to magic numbers.
2173 [Ben Laurie (CHATS)]
2175 *) Avoid filename truncation in cert requests.
2176 [Ben Laurie (CHATS)]
2178 *) Add assertions to check for (supposedly impossible) buffer
2180 [Ben Laurie (CHATS)]
2182 *) Don't cache truncated DNS entries in the local cache (this could
2183 potentially lead to a spoofing attack).
2184 [Ben Laurie (CHATS)]
2186 *) Fix various buffers to be large enough for hex/decimal
2187 representations in a platform independent manner.
2188 [Ben Laurie (CHATS)]
2190 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2191 resizing buffers containing secrets, and use where appropriate.
2192 [Ben Laurie (CHATS)]
2194 *) Add BIO_indent() to avoid much slightly worrying code to do
2196 [Ben Laurie (CHATS)]
2198 *) Convert sprintf()/BIO_puts() to BIO_printf().
2199 [Ben Laurie (CHATS)]
2201 *) buffer_gets() could terminate with the buffer only half
2203 [Ben Laurie (CHATS)]
2205 *) Add assertions to prevent user-supplied crypto functions from
2206 overflowing internal buffers by having large block sizes, etc.
2207 [Ben Laurie (CHATS)]
2209 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2211 [Ben Laurie (CHATS)]
2213 *) Eliminate unused copy of key in RC4.
2214 [Ben Laurie (CHATS)]
2216 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2217 [Ben Laurie (CHATS)]
2219 *) Fix off-by-one error in EGD path.
2220 [Ben Laurie (CHATS)]
2222 *) If RANDFILE path is too long, ignore instead of truncating.
2223 [Ben Laurie (CHATS)]
2225 *) Eliminate unused and incorrectly sized X.509 structure
2227 [Ben Laurie (CHATS)]
2229 *) Eliminate unused and dangerous function knumber().
2230 [Ben Laurie (CHATS)]
2232 *) Eliminate unused and dangerous structure, KSSL_ERR.
2233 [Ben Laurie (CHATS)]
2235 *) Protect against overlong session ID context length in an encoded
2236 session object. Since these are local, this does not appear to be
2238 [Ben Laurie (CHATS)]
2240 *) Change from security patch (see 0.9.6e below) that did not affect
2241 the 0.9.6 release series:
2243 Remote buffer overflow in SSL3 protocol - an attacker could
2244 supply an oversized master key in Kerberos-enabled versions.
2246 [Ben Laurie (CHATS)]
2248 *) Change the SSL kerb5 codes to match RFC 2712.
2251 *) Make -nameopt work fully for req and add -reqopt switch.
2252 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2254 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2255 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2257 *) Make sure tests can be performed even if the corresponding algorithms
2258 have been removed entirely. This was also the last step to make
2259 OpenSSL compilable with DJGPP under all reasonable conditions.
2260 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2262 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2263 to allow version independent disabling of normally unselected ciphers,
2264 which may be activated as a side-effect of selecting a single cipher.
2266 (E.g., cipher list string "RSA" enables ciphersuites that are left
2267 out of "ALL" because they do not provide symmetric encryption.
2268 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2269 [Lutz Jaenicke, Bodo Moeller]
2271 *) Add appropriate support for separate platform-dependent build
2272 directories. The recommended way to make a platform-dependent
2273 build directory is the following (tested on Linux), maybe with
2276 # Place yourself outside of the OpenSSL source tree. In
2277 # this example, the environment variable OPENSSL_SOURCE
2278 # is assumed to contain the absolute OpenSSL source directory.
2279 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2280 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2281 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2282 mkdir -p `dirname $F`
2283 ln -s $OPENSSL_SOURCE/$F $F
2286 To be absolutely sure not to disturb the source tree, a "make clean"
2287 is a good thing. If it isn't successfull, don't worry about it,
2288 it probably means the source directory is very clean.
2291 *) Make sure any ENGINE control commands make local copies of string
2292 pointers passed to them whenever necessary. Otherwise it is possible
2293 the caller may have overwritten (or deallocated) the original string
2294 data when a later ENGINE operation tries to use the stored values.
2295 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2297 *) Improve diagnostics in file reading and command-line digests.
2298 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2300 *) Add AES modes CFB and OFB to the object database. Correct an
2301 error in AES-CFB decryption.
2304 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2305 allows existing EVP_CIPHER_CTX structures to be reused after
2306 calling EVP_*Final(). This behaviour is used by encryption
2307 BIOs and some applications. This has the side effect that
2308 applications must explicitly clean up cipher contexts with
2309 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2312 *) Check the values of dna and dnb in bn_mul_recursive before calling
2313 bn_mul_comba (a non zero value means the a or b arrays do not contain
2314 n2 elements) and fallback to bn_mul_normal if either is not zero.
2317 *) Fix escaping of non-ASCII characters when using the -subj option
2318 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2321 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2322 form for "surname", serialNumber has no short form.
2323 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2324 therefore remove "mail" short name for "internet 7".
2325 The OID for unique identifiers in X509 certificates is
2326 x500UniqueIdentifier, not uniqueIdentifier.
2327 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2330 *) Add an "init" command to the ENGINE config module and auto initialize
2331 ENGINEs. Without any "init" command the ENGINE will be initialized
2332 after all ctrl commands have been executed on it. If init=1 the
2333 ENGINE is initailized at that point (ctrls before that point are run
2334 on the uninitialized ENGINE and after on the initialized one). If
2335 init=0 then the ENGINE will not be iniatialized at all.
2338 *) Fix the 'app_verify_callback' interface so that the user-defined
2339 argument is actually passed to the callback: In the
2340 SSL_CTX_set_cert_verify_callback() prototype, the callback
2341 declaration has been changed from
2344 int (*cb)(X509_STORE_CTX *,void *);
2345 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2346 i=s->ctx->app_verify_callback(&ctx)
2347 has been changed into
2348 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2350 To update applications using SSL_CTX_set_cert_verify_callback(),
2351 a dummy argument can be added to their callback functions.
2352 [D. K. Smetters <smetters@parc.xerox.com>]
2354 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2355 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2357 *) Add and OPENSSL_LOAD_CONF define which will cause
2358 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2359 This allows older applications to transparently support certain
2360 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2361 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2362 load the config file and OPENSSL_add_all_algorithms_conf() which will
2363 always load it have also been added.
2366 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2367 Adjust NIDs and EVP layer.
2368 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2370 *) Config modules support in openssl utility.
2372 Most commands now load modules from the config file,
2373 though in a few (such as version) this isn't done
2374 because it couldn't be used for anything.
2376 In the case of ca and req the config file used is
2377 the same as the utility itself: that is the -config
2378 command line option can be used to specify an
2382 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2383 use "openssl_conf" if filename is NULL use default openssl config file.
2386 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2387 config section name. Add a new flag to tolerate a missing config file
2388 and move code to CONF_modules_load_file().
2391 *) Support for crypto accelerator cards from Accelerated Encryption
2392 Processing, www.aep.ie. (Use engine 'aep')
2393 The support was copied from 0.9.6c [engine] and adapted/corrected
2394 to work with the new engine framework.
2395 [AEP Inc. and Richard Levitte]
2397 *) Support for SureWare crypto accelerator cards from Baltimore
2398 Technologies. (Use engine 'sureware')
2399 The support was copied from 0.9.6c [engine] and adapted
2400 to work with the new engine framework.
2403 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2404 make the newer ENGINE framework commands for the CHIL engine work.
2405 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2407 *) Make it possible to produce shared libraries on ReliantUNIX.
2408 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2410 *) Add the configuration target debug-linux-ppro.
2411 Make 'openssl rsa' use the general key loading routines
2412 implemented in apps.c, and make those routines able to
2413 handle the key format FORMAT_NETSCAPE and the variant
2415 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2417 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2418 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2420 *) Add -keyform to rsautl, and document -engine.
2421 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2423 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2424 BIO_R_NO_SUCH_FILE error code rather than the generic
2425 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2428 *) Add new functions
2430 ERR_peek_last_error_line
2431 ERR_peek_last_error_line_data.
2432 These are similar to
2435 ERR_peek_error_line_data,
2436 but report on the latest error recorded rather than the first one
2437 still in the error queue.
2438 [Ben Laurie, Bodo Moeller]
2440 *) default_algorithms option in ENGINE config module. This allows things
2442 default_algorithms = ALL
2443 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2446 *) Prelminary ENGINE config module.
2449 *) New experimental application configuration code.
2452 *) Change the AES code to follow the same name structure as all other
2453 symmetric ciphers, and behave the same way. Move everything to
2454 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2455 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2457 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2458 [Ben Laurie and Theo de Raadt]
2460 *) Add option to output public keys in req command.
2461 [Massimiliano Pala madwolf@openca.org]
2463 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2464 (up to about 10% better than before for P-192 and P-224).
2467 *) New functions/macros
2469 SSL_CTX_set_msg_callback(ctx, cb)
2470 SSL_CTX_set_msg_callback_arg(ctx, arg)
2471 SSL_set_msg_callback(ssl, cb)
2472 SSL_set_msg_callback_arg(ssl, arg)
2474 to request calling a callback function
2476 void cb(int write_p, int version, int content_type,
2477 const void *buf, size_t len, SSL *ssl, void *arg)
2479 whenever a protocol message has been completely received
2480 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2481 protocol version according to which the SSL library interprets
2482 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2483 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2484 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2485 specification (change_cipher_spec(20), alert(21), handshake(22)).
2486 'buf' and 'len' point to the actual message, 'ssl' to the
2487 SSL object, and 'arg' is the application-defined value set by
2488 SSL[_CTX]_set_msg_callback_arg().
2490 'openssl s_client' and 'openssl s_server' have new '-msg' options
2491 to enable a callback that displays all protocol messages.
2494 *) Change the shared library support so shared libraries are built as
2495 soon as the corresponding static library is finished, and thereby get
2496 openssl and the test programs linked against the shared library.
2497 This still only happens when the keyword "shard" has been given to
2498 the configuration scripts.
2500 NOTE: shared library support is still an experimental thing, and
2501 backward binary compatibility is still not guaranteed.
2502 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2504 *) Add support for Subject Information Access extension.
2505 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2507 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2508 additional bytes when new memory had to be allocated, not just
2509 when reusing an existing buffer.
2512 *) New command line and configuration option 'utf8' for the req command.
2513 This allows field values to be specified as UTF8 strings.
2516 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2517 runs for the former and machine-readable output for the latter.
2520 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2521 of the e-mail address in the DN (i.e., it will go into a certificate
2522 extension only). The new configuration file option 'email_in_dn = no'
2523 has the same effect.
2524 [Massimiliano Pala madwolf@openca.org]
2526 *) Change all functions with names starting with des_ to be starting
2527 with DES_ instead. Add wrappers that are compatible with libdes,
2528 but are named _ossl_old_des_*. Finally, add macros that map the
2529 des_* symbols to the corresponding _ossl_old_des_* if libdes
2530 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2531 desired, the des_* symbols will be mapped to DES_*, with one
2534 Since we provide two compatibility mappings, the user needs to
2535 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2536 compatibility is desired. The default (i.e., when that macro
2537 isn't defined) is OpenSSL 0.9.6c compatibility.
2539 There are also macros that enable and disable the support of old
2540 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2541 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2542 are defined, the default will apply: to support the old des routines.
2544 In either case, one must include openssl/des.h to get the correct
2545 definitions. Do not try to just include openssl/des_old.h, that
2548 NOTE: This is a major break of an old API into a new one. Software
2549 authors are encouraged to switch to the DES_ style functions. Some
2550 time in the future, des_old.h and the libdes compatibility functions
2551 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2552 default), and then completely removed.
2555 *) Test for certificates which contain unsupported critical extensions.
2556 If such a certificate is found during a verify operation it is
2557 rejected by default: this behaviour can be overridden by either
2558 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2559 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2560 X509_supported_extension() has also been added which returns 1 if a
2561 particular extension is supported.
2564 *) Modify the behaviour of EVP cipher functions in similar way to digests
2565 to retain compatibility with existing code.
2568 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2569 compatibility with existing code. In particular the 'ctx' parameter does
2570 not have to be to be initialized before the call to EVP_DigestInit() and
2571 it is tidied up after a call to EVP_DigestFinal(). New function
2572 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2573 EVP_MD_CTX_copy() changed to not require the destination to be
2574 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2575 requires the destination to be valid.
2577 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2578 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2581 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2582 so that complete 'Handshake' protocol structures are kept in memory
2583 instead of overwriting 'msg_type' and 'length' with 'body' data.
2586 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2587 [Massimo Santin via Richard Levitte]
2589 *) Major restructuring to the underlying ENGINE code. This includes
2590 reduction of linker bloat, separation of pure "ENGINE" manipulation
2591 (initialisation, etc) from functionality dealing with implementations
2592 of specific crypto iterfaces. This change also introduces integrated
2593 support for symmetric ciphers and digest implementations - so ENGINEs
2594 can now accelerate these by providing EVP_CIPHER and EVP_MD
2595 implementations of their own. This is detailed in crypto/engine/README
2596 as it couldn't be adequately described here. However, there are a few
2597 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2598 were changed in the original introduction of ENGINE code have now
2599 reverted back - the hooking from this code to ENGINE is now a good
2600 deal more passive and at run-time, operations deal directly with
2601 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2602 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2603 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2604 they were not being used by the framework as there is no concept of a
2605 BIGNUM_METHOD and they could not be generalised to the new
2606 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2607 ENGINE_cpy() has been removed as it cannot be consistently defined in
2611 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2614 *) Change mkdef.pl to sort symbols that get the same entry number,
2615 and make sure the automatically generated functions ERR_load_*
2616 become part of libeay.num as well.
2619 *) New function SSL_renegotiate_pending(). This returns true once
2620 renegotiation has been requested (either SSL_renegotiate() call
2621 or HelloRequest/ClientHello receveived from the peer) and becomes
2622 false once a handshake has been completed.
2623 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2624 sends a HelloRequest, but does not ensure that a handshake takes
2625 place. SSL_renegotiate_pending() is useful for checking if the
2626 client has followed the request.)
2629 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2630 By default, clients may request session resumption even during
2631 renegotiation (if session ID contexts permit); with this option,
2632 session resumption is possible only in the first handshake.
2634 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2635 more bits available for options that should not be part of
2636 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2639 *) Add some demos for certificate and certificate request creation.
2642 *) Make maximum certificate chain size accepted from the peer application
2643 settable (SSL*_get/set_max_cert_list()), as proposed by
2644 "Douglas E. Engert" <deengert@anl.gov>.
2647 *) Add support for shared libraries for Unixware-7
2648 (Boyd Lynn Gerber <gerberb@zenez.com>).
2651 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2652 be done prior to destruction. Use this to unload error strings from
2653 ENGINEs that load their own error strings. NB: This adds two new API
2654 functions to "get" and "set" this destroy handler in an ENGINE.
2657 *) Alter all existing ENGINE implementations (except "openssl" and
2658 "openbsd") to dynamically instantiate their own error strings. This
2659 makes them more flexible to be built both as statically-linked ENGINEs
2660 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2661 Also, add stub code to each that makes building them as self-contained
2662 shared-libraries easier (see README.ENGINE).
2665 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2666 implementations into applications that are completely implemented in
2667 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2668 commands that can be used to configure what shared-library to load and
2669 to control aspects of the way it is handled. Also, made an update to
2670 the README.ENGINE file that brings its information up-to-date and
2671 provides some information and instructions on the "dynamic" ENGINE
2672 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2675 *) Make it possible to unload ranges of ERR strings with a new
2676 "ERR_unload_strings" function.
2679 *) Add a copy() function to EVP_MD.
2682 *) Make EVP_MD routines take a context pointer instead of just the
2683 md_data void pointer.
2686 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2687 that the digest can only process a single chunk of data
2688 (typically because it is provided by a piece of
2689 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2690 is only going to provide a single chunk of data, and hence the
2691 framework needn't accumulate the data for oneshot drivers.
2694 *) As with "ERR", make it possible to replace the underlying "ex_data"
2695 functions. This change also alters the storage and management of global
2696 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2697 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2698 index counters. The API functions that use this state have been changed
2699 to take a "class_index" rather than pointers to the class's local STACK
2700 and counter, and there is now an API function to dynamically create new
2701 classes. This centralisation allows us to (a) plug a lot of the
2702 thread-safety problems that existed, and (b) makes it possible to clean
2703 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2704 such data would previously have always leaked in application code and
2705 workarounds were in place to make the memory debugging turn a blind eye
2706 to it. Application code that doesn't use this new function will still
2707 leak as before, but their memory debugging output will announce it now
2708 rather than letting it slide.
2710 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2711 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2712 has a return value to indicate success or failure.
2715 *) Make it possible to replace the underlying "ERR" functions such that the
2716 global state (2 LHASH tables and 2 locks) is only used by the "default"
2717 implementation. This change also adds two functions to "get" and "set"
2718 the implementation prior to it being automatically set the first time
2719 any other ERR function takes place. Ie. an application can call "get",
2720 pass the return value to a module it has just loaded, and that module
2721 can call its own "set" function using that value. This means the
2722 module's "ERR" operations will use (and modify) the error state in the
2723 application and not in its own statically linked copy of OpenSSL code.
2726 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2727 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2728 the operation, and provides a more encapsulated way for external code
2729 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2730 to use these functions rather than manually incrementing the counts.
2732 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2735 *) Add EVP test program.
2738 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2741 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2742 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2743 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2744 These allow a CRL to be built without having to access X509_CRL fields
2745 directly. Modify 'ca' application to use new functions.
2748 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2749 bug workarounds. Rollback attack detection is a security feature.
2750 The problem will only arise on OpenSSL servers when TLSv1 is not
2751 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2752 Software authors not wanting to support TLSv1 will have special reasons
2753 for their choice and can explicitly enable this option.
2754 [Bodo Moeller, Lutz Jaenicke]
2756 *) Rationalise EVP so it can be extended: don't include a union of
2757 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2758 (similar to those existing for EVP_CIPHER_CTX).
2763 EVP_MD_CTX_init(&md); /* new function call */
2764 EVP_DigestInit(&md, EVP_sha1());
2765 EVP_DigestUpdate(&md, in, len);
2766 EVP_DigestFinal(&md, out, NULL);
2767 EVP_MD_CTX_cleanup(&md); /* new function call */
2771 *) Make DES key schedule conform to the usual scheme, as well as
2772 correcting its structure. This means that calls to DES functions
2773 now have to pass a pointer to a des_key_schedule instead of a
2774 plain des_key_schedule (which was actually always a pointer
2777 des_key_schedule ks;
2779 des_set_key_checked(..., &ks);
2780 des_ncbc_encrypt(..., &ks, ...);
2782 (Note that a later change renames 'des_...' into 'DES_...'.)
2785 *) Initial reduction of linker bloat: the use of some functions, such as
2786 PEM causes large amounts of unused functions to be linked in due to
2787 poor organisation. For example pem_all.c contains every PEM function
2788 which has a knock on effect of linking in large amounts of (unused)
2789 ASN1 code. Grouping together similar functions and splitting unrelated
2790 functions prevents this.
2793 *) Cleanup of EVP macros.
2796 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2797 correct _ecb suffix.
2800 *) Add initial OCSP responder support to ocsp application. The
2801 revocation information is handled using the text based index
2802 use by the ca application. The responder can either handle
2803 requests generated internally, supplied in files (for example
2804 via a CGI script) or using an internal minimal server.
2807 *) Add configuration choices to get zlib compression for TLS.
2810 *) Changes to Kerberos SSL for RFC 2712 compliance:
2811 1. Implemented real KerberosWrapper, instead of just using
2812 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2813 2. Implemented optional authenticator field of KerberosWrapper.
2815 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2816 and authenticator structs; see crypto/krb5/.
2818 Generalized Kerberos calls to support multiple Kerberos libraries.
2819 [Vern Staats <staatsvr@asc.hpc.mil>,
2820 Jeffrey Altman <jaltman@columbia.edu>
2821 via Richard Levitte]
2823 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2824 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2825 values for each of the key sizes rather than having just
2826 parameters (and 'speed' generating keys each time).
2829 *) Speed up EVP routines.
2832 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2833 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2834 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2835 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2837 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2838 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2839 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2842 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2844 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2847 *) Added the OS2-EMX target.
2848 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2850 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2851 to support NCONF routines in extension code. New function CONF_set_nconf()
2852 to allow functions which take an NCONF to also handle the old LHASH
2853 structure: this means that the old CONF compatible routines can be
2854 retained (in particular wrt extensions) without having to duplicate the
2855 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2858 *) Enhance the general user interface with mechanisms for inner control
2859 and with possibilities to have yes/no kind of prompts.
2862 *) Change all calls to low level digest routines in the library and
2863 applications to use EVP. Add missing calls to HMAC_cleanup() and
2864 don't assume HMAC_CTX can be copied using memcpy().
2865 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2867 *) Add the possibility to control engines through control names but with
2868 arbitrary arguments instead of just a string.
2869 Change the key loaders to take a UI_METHOD instead of a callback
2870 function pointer. NOTE: this breaks binary compatibility with earlier
2871 versions of OpenSSL [engine].
2872 Adapt the nCipher code for these new conditions and add a card insertion
2876 *) Enhance the general user interface with mechanisms to better support
2877 dialog box interfaces, application-defined prompts, the possibility
2878 to use defaults (for example default passwords from somewhere else)
2879 and interrupts/cancellations.
2882 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2883 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2886 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2887 tidy up some unnecessarily weird code in 'sk_new()').
2888 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2890 *) Change the key loading routines for ENGINEs to use the same kind
2891 callback (pem_password_cb) as all other routines that need this
2895 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2896 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2897 than this minimum value is recommended.
2900 *) New random seeder for OpenVMS, using the system process statistics
2901 that are easily reachable.
2904 *) Windows apparently can't transparently handle global
2905 variables defined in DLLs. Initialisations such as:
2907 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2909 wont compile. This is used by the any applications that need to
2910 declare their own ASN1 modules. This was fixed by adding the option
2911 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2912 needed for static libraries under Win32.
2915 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2916 setting of purpose and trust fields. New X509_STORE trust and
2917 purpose functions and tidy up setting in other SSL functions.
2920 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2921 structure. These are inherited by X509_STORE_CTX when it is
2922 initialised. This allows various defaults to be set in the
2923 X509_STORE structure (such as flags for CRL checking and custom
2924 purpose or trust settings) for functions which only use X509_STORE_CTX
2925 internally such as S/MIME.
2927 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2928 trust settings if they are not set in X509_STORE. This allows X509_STORE
2929 purposes and trust (in S/MIME for example) to override any set by default.
2931 Add command line options for CRL checking to smime, s_client and s_server
2935 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2936 are set then the CRL is looked up in the X509_STORE structure and
2937 its validity and signature checked, then if the certificate is found
2938 in the CRL the verify fails with a revoked error.
2940 Various new CRL related callbacks added to X509_STORE_CTX structure.
2942 Command line options added to 'verify' application to support this.
2944 This needs some additional work, such as being able to handle multiple
2945 CRLs with different times, extension based lookup (rather than just
2946 by subject name) and ultimately more complete V2 CRL extension
2950 *) Add a general user interface API (crypto/ui/). This is designed
2951 to replace things like des_read_password and friends (backward
2952 compatibility functions using this new API are provided).
2953 The purpose is to remove prompting functions from the DES code
2954 section as well as provide for prompting through dialog boxes in
2955 a window system and the like.
2958 *) Add "ex_data" support to ENGINE so implementations can add state at a
2959 per-structure level rather than having to store it globally.
2962 *) Make it possible for ENGINE structures to be copied when retrieved by
2963 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2964 This causes the "original" ENGINE structure to act like a template,
2965 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2966 operational state can be localised to each ENGINE structure, despite the
2967 fact they all share the same "methods". New ENGINE structures returned in
2968 this case have no functional references and the return value is the single
2969 structural reference. This matches the single structural reference returned
2970 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2974 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2975 needs to match any other type at all we need to manually clear the
2979 *) Changes to the "openssl engine" utility to include;
2980 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2981 about an ENGINE's available control commands.
2982 - executing control commands from command line arguments using the
2983 '-pre' and '-post' switches. '-post' is only used if '-t' is
2984 specified and the ENGINE is successfully initialised. The syntax for
2985 the individual commands are colon-separated, for example;
2986 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2989 *) New dynamic control command support for ENGINEs. ENGINEs can now
2990 declare their own commands (numbers), names (strings), descriptions,
2991 and input types for run-time discovery by calling applications. A
2992 subset of these commands are implicitly classed as "executable"
2993 depending on their input type, and only these can be invoked through
2994 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2995 can be based on user input, config files, etc). The distinction is
2996 that "executable" commands cannot return anything other than a boolean
2997 result and can only support numeric or string input, whereas some
2998 discoverable commands may only be for direct use through
2999 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3000 pointers, or other custom uses. The "executable" commands are to
3001 support parameterisations of ENGINE behaviour that can be
3002 unambiguously defined by ENGINEs and used consistently across any
3003 OpenSSL-based application. Commands have been added to all the
3004 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3005 control over shared-library paths without source code alterations.
3008 *) Changed all ENGINE implementations to dynamically allocate their
3009 ENGINEs rather than declaring them statically. Apart from this being
3010 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3011 this also allows the implementations to compile without using the
3012 internal engine_int.h header.
3015 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3016 'const' value. Any code that should be able to modify a RAND_METHOD
3017 should already have non-const pointers to it (ie. they should only
3018 modify their own ones).
3021 *) Made a variety of little tweaks to the ENGINE code.
3022 - "atalla" and "ubsec" string definitions were moved from header files
3023 to C code. "nuron" string definitions were placed in variables
3024 rather than hard-coded - allowing parameterisation of these values
3025 later on via ctrl() commands.
3026 - Removed unused "#if 0"'d code.
3027 - Fixed engine list iteration code so it uses ENGINE_free() to release
3028 structural references.
3029 - Constified the RAND_METHOD element of ENGINE structures.
3030 - Constified various get/set functions as appropriate and added
3031 missing functions (including a catch-all ENGINE_cpy that duplicates
3032 all ENGINE values onto a new ENGINE except reference counts/state).
3033 - Removed NULL parameter checks in get/set functions. Setting a method
3034 or function to NULL is a way of cancelling out a previously set
3035 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3036 and doesn't justify the extra error symbols and code.
3037 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3038 flags from engine_int.h to engine.h.
3039 - Changed prototypes for ENGINE handler functions (init(), finish(),
3040 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3043 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3044 to the algorithm using long division. The binary algorithm can be
3045 used only if the modulus is odd. On 32-bit systems, it is faster
3046 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3047 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3048 up to 450 bits. In 64-bit environments, the binary algorithm
3049 appears to be advantageous for much longer moduli; here we use it
3050 for moduli up to 2048 bits.
3053 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3054 could not support the combine flag in choice fields.
3057 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3058 extensions from a certificate request to the certificate.
3061 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3062 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3063 file: this allows the display of the certificate about to be
3064 signed to be customised, to allow certain fields to be included
3065 or excluded and extension details. The old system didn't display
3066 multicharacter strings properly, omitted fields not in the policy
3067 and couldn't display additional details such as extensions.
3070 *) Function EC_POINTs_mul for multiple scalar multiplication
3071 of an arbitrary number of elliptic curve points
3072 \sum scalars[i]*points[i],
3073 optionally including the generator defined for the EC_GROUP:
3074 scalar*generator + \sum scalars[i]*points[i].
3076 EC_POINT_mul is a simple wrapper function for the typical case
3077 that the point list has just one item (besides the optional
3081 *) First EC_METHODs for curves over GF(p):
3083 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3084 operations and provides various method functions that can also
3085 operate with faster implementations of modular arithmetic.
3087 EC_GFp_mont_method() reuses most functions that are part of
3088 EC_GFp_simple_method, but uses Montgomery arithmetic.
3090 [Bodo Moeller; point addition and point doubling
3091 implementation directly derived from source code provided by
3092 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3094 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3095 crypto/ec/ec_lib.c):
3097 Curves are EC_GROUP objects (with an optional group generator)
3098 based on EC_METHODs that are built into the library.
3100 Points are EC_POINT objects based on EC_GROUP objects.
3102 Most of the framework would be able to handle curves over arbitrary
3103 finite fields, but as there are no obvious types for fields other
3104 than GF(p), some functions are limited to that for now.
3107 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3108 that the file contains a complete HTTP response.
3111 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3112 change the def and num file printf format specifier from "%-40sXXX"
3113 to "%-39s XXX". The latter will always guarantee a space after the
3114 field while the former will cause them to run together if the field
3115 is 40 of more characters long.
3118 *) Constify the cipher and digest 'method' functions and structures
3119 and modify related functions to take constant EVP_MD and EVP_CIPHER
3123 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3124 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3127 *) Modify EVP_Digest*() routines so they now return values. Although the
3128 internal software routines can never fail additional hardware versions
3132 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3134 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3135 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3138 ERR_R_NESTED_ASN1_ERROR
3140 ERR_R_MISSING_ASN1_EOS
3141 were 4 .. 9, conflicting with
3142 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3144 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3145 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3147 Add new error code 'ERR_R_INTERNAL_ERROR'.
3150 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3154 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3155 sets the subject name for a new request or supersedes the
3156 subject name in a given request. Formats that can be parsed are
3157 'CN=Some Name, OU=myOU, C=IT'
3159 'CN=Some Name/OU=myOU/C=IT'.
3161 Add options '-batch' and '-verbose' to 'openssl req'.
3162 [Massimiliano Pala <madwolf@hackmasters.net>]
3164 *) Introduce the possibility to access global variables through
3165 functions on platform were that's the best way to handle exporting
3166 global variables in shared libraries. To enable this functionality,
3167 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3168 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3169 is normally done by Configure or something similar).
3171 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3172 in the source file (foo.c) like this:
3174 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3175 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3177 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3178 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3180 OPENSSL_DECLARE_GLOBAL(int,foo);
3181 #define foo OPENSSL_GLOBAL_REF(foo)
3182 OPENSSL_DECLARE_GLOBAL(double,bar);
3183 #define bar OPENSSL_GLOBAL_REF(bar)
3185 The #defines are very important, and therefore so is including the
3186 header file everywhere where the defined globals are used.
3188 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3189 of ASN.1 items, but that structure is a bit different.
3191 The largest change is in util/mkdef.pl which has been enhanced with
3192 better and easier to understand logic to choose which symbols should
3193 go into the Windows .def files as well as a number of fixes and code
3194 cleanup (among others, algorithm keywords are now sorted
3195 lexicographically to avoid constant rewrites).
3198 *) In BN_div() keep a copy of the sign of 'num' before writing the
3199 result to 'rm' because if rm==num the value will be overwritten
3200 and produce the wrong result if 'num' is negative: this caused
3201 problems with BN_mod() and BN_nnmod().
3204 *) Function OCSP_request_verify(). This checks the signature on an
3205 OCSP request and verifies the signer certificate. The signer
3206 certificate is just checked for a generic purpose and OCSP request
3210 *) Add OCSP_check_validity() function to check the validity of OCSP
3211 responses. OCSP responses are prepared in real time and may only
3212 be a few seconds old. Simply checking that the current time lies
3213 between thisUpdate and nextUpdate max reject otherwise valid responses
3214 caused by either OCSP responder or client clock inaccuracy. Instead
3215 we allow thisUpdate and nextUpdate to fall within a certain period of
3216 the current time. The age of the response can also optionally be
3217 checked. Two new options -validity_period and -status_age added to
3221 *) If signature or public key algorithm is unrecognized print out its
3222 OID rather that just UNKNOWN.
3225 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3226 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3227 ID to be generated from the issuer certificate alone which can then be
3228 passed to OCSP_id_issuer_cmp().
3231 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3232 ASN1 modules to export functions returning ASN1_ITEM pointers
3233 instead of the ASN1_ITEM structures themselves. This adds several
3234 new macros which allow the underlying ASN1 function/structure to
3235 be accessed transparently. As a result code should not use ASN1_ITEM
3236 references directly (such as &X509_it) but instead use the relevant
3237 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3238 use of the new ASN1 code on platforms where exporting structures
3239 is problematical (for example in shared libraries) but exporting
3240 functions returning pointers to structures is not.
3243 *) Add support for overriding the generation of SSL/TLS session IDs.
3244 These callbacks can be registered either in an SSL_CTX or per SSL.
3245 The purpose of this is to allow applications to control, if they wish,
3246 the arbitrary values chosen for use as session IDs, particularly as it
3247 can be useful for session caching in multiple-server environments. A
3248 command-line switch for testing this (and any client code that wishes
3249 to use such a feature) has been added to "s_server".
3250 [Geoff Thorpe, Lutz Jaenicke]
3252 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3253 of the form '#if defined(...) || defined(...) || ...' and
3254 '#if !defined(...) && !defined(...) && ...'. This also avoids
3255 the growing number of special cases it was previously handling.
3258 *) Make all configuration macros available for application by making
3259 sure they are available in opensslconf.h, by giving them names starting
3260 with "OPENSSL_" to avoid conflicts with other packages and by making
3261 sure e_os2.h will cover all platform-specific cases together with
3263 Additionally, it is now possible to define configuration/platform-
3264 specific names (called "system identities"). In the C code, these
3265 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3266 macro with the name beginning with "OPENSSL_SYS_", which is determined
3267 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3271 *) New option -set_serial to 'req' and 'x509' this allows the serial
3272 number to use to be specified on the command line. Previously self
3273 signed certificates were hard coded with serial number 0 and the
3274 CA options of 'x509' had to use a serial number in a file which was
3278 *) New options to 'ca' utility to support V2 CRL entry extensions.
3279 Currently CRL reason, invalidity date and hold instruction are
3280 supported. Add new CRL extensions to V3 code and some new objects.
3283 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3284 disable standard block padding (aka PKCS#5 padding) in the EVP
3285 API, which was previously mandatory. This means that the data is
3286 not padded in any way and so the total length much be a multiple
3287 of the block size, otherwise an error occurs.
3290 *) Initial (incomplete) OCSP SSL support.
3293 *) New function OCSP_parse_url(). This splits up a URL into its host,
3294 port and path components: primarily to parse OCSP URLs. New -url
3295 option to ocsp utility.
3298 *) New nonce behavior. The return value of OCSP_check_nonce() now
3299 reflects the various checks performed. Applications can decide
3300 whether to tolerate certain situations such as an absent nonce
3301 in a response when one was present in a request: the ocsp application
3302 just prints out a warning. New function OCSP_add1_basic_nonce()
3303 this is to allow responders to include a nonce in a response even if
3304 the request is nonce-less.
3307 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3308 skipped when using openssl x509 multiple times on a single input file,
3309 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3312 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3313 set string type: to handle setting ASN1_TIME structures. Fix ca
3314 utility to correctly initialize revocation date of CRLs.
3317 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3318 the clients preferred ciphersuites and rather use its own preferences.
3319 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3320 Internet Explorer by ensuring unchanged hash method during stepup.
3321 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3324 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3325 to aes and add a new 'exist' option to print out symbols that don't
3329 *) Additional options to ocsp utility to allow flags to be set and
3330 additional certificates supplied.
3333 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3334 OCSP client a number of certificate to only verify the response
3338 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3339 handle the new API. Currently only ECB, CBC modes supported. Add new
3342 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3343 Encryption Standard (AES) Ciphersuites for Transport Layer
3344 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3345 not enabled by default and were not part of the "ALL" ciphersuite
3346 alias because they were not yet official; they could be
3347 explicitly requested by specifying the "AESdraft" ciphersuite
3348 group alias. In the final release of OpenSSL 0.9.7, the group
3349 alias is called "AES" and is part of "ALL".)
3350 [Ben Laurie, Steve Henson, Bodo Moeller]
3352 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3353 request to response.
3356 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3357 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3358 extract information from a certificate request. OCSP_response_create()
3359 creates a response and optionally adds a basic response structure.
3360 OCSP_basic_add1_status() adds a complete single response to a basic
3361 response and returns the OCSP_SINGLERESP structure just added (to allow
3362 extensions to be included for example). OCSP_basic_add1_cert() adds a
3363 certificate to a basic response and OCSP_basic_sign() signs a basic
3364 response with various flags. New helper functions ASN1_TIME_check()
3365 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3366 (converts ASN1_TIME to GeneralizedTime).
3369 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3370 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3371 structure from a certificate. X509_pubkey_digest() digests the public_key
3372 contents: this is used in various key identifiers.
3375 *) Make sk_sort() tolerate a NULL argument.
3376 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3378 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3379 passed by the function are trusted implicitly. If any of them signed the
3380 response then it is assumed to be valid and is not verified.
3383 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3384 to data. This was previously part of the PKCS7 ASN1 code. This
3385 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3386 [Steve Henson, reported by Kenneth R. Robinette
3387 <support@securenetterm.com>]
3389 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3390 routines: without these tracing memory leaks is very painful.
3391 Fix leaks in PKCS12 and PKCS7 routines.
3394 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3395 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3396 effectively meant GeneralizedTime would never be used. Now it
3397 is initialised to -1 but X509_time_adj() now has to check the value
3398 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3399 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3400 [Steve Henson, reported by Kenneth R. Robinette
3401 <support@securenetterm.com>]
3403 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3404 result in a zero length in the ASN1_INTEGER structure which was
3405 not consistent with the structure when d2i_ASN1_INTEGER() was used
3406 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3407 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3408 where it did not print out a minus for negative ASN1_INTEGER.
3411 *) Add summary printout to ocsp utility. The various functions which
3412 convert status values to strings have been renamed to:
3413 OCSP_response_status_str(), OCSP_cert_status_str() and
3414 OCSP_crl_reason_str() and are no longer static. New options
3415 to verify nonce values and to disable verification. OCSP response
3416 printout format cleaned up.
3419 *) Add additional OCSP certificate checks. These are those specified
3420 in RFC2560. This consists of two separate checks: the CA of the
3421 certificate being checked must either be the OCSP signer certificate
3422 or the issuer of the OCSP signer certificate. In the latter case the
3423 OCSP signer certificate must contain the OCSP signing extended key
3424 usage. This check is performed by attempting to match the OCSP
3425 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3426 in the OCSP_CERTID structures of the response.
3429 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3430 and related routines. This uses the standard OpenSSL certificate
3431 verify routines to perform initial checks (just CA validity) and
3432 to obtain the certificate chain. Then additional checks will be
3433 performed on the chain. Currently the root CA is checked to see
3434 if it is explicitly trusted for OCSP signing. This is used to set
3435 a root CA as a global signing root: that is any certificate that
3436 chains to that CA is an acceptable OCSP signing certificate.
3439 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3440 extensions from a separate configuration file.
3441 As when reading extensions from the main configuration file,
3442 the '-extensions ...' option may be used for specifying the
3444 [Massimiliano Pala <madwolf@comune.modena.it>]
3446 *) New OCSP utility. Allows OCSP requests to be generated or
3447 read. The request can be sent to a responder and the output
3448 parsed, outputed or printed in text form. Not complete yet:
3449 still needs to check the OCSP response validity.
3452 *) New subcommands for 'openssl ca':
3453 'openssl ca -status <serial>' prints the status of the cert with
3454 the given serial number (according to the index file).
3455 'openssl ca -updatedb' updates the expiry status of certificates
3457 [Massimiliano Pala <madwolf@comune.modena.it>]
3459 *) New '-newreq-nodes' command option to CA.pl. This is like
3460 '-newreq', but calls 'openssl req' with the '-nodes' option
3461 so that the resulting key is not encrypted.
3462 [Damien Miller <djm@mindrot.org>]
3464 *) New configuration for the GNU Hurd.
3465 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3467 *) Initial code to implement OCSP basic response verify. This
3468 is currently incomplete. Currently just finds the signer's
3469 certificate and verifies the signature on the response.
3472 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3473 value of OPENSSLDIR. This is available via the new '-d' option
3474 to 'openssl version', and is also included in 'openssl version -a'.
3477 *) Allowing defining memory allocation callbacks that will be given
3478 file name and line number information in additional arguments
3479 (a const char* and an int). The basic functionality remains, as
3480 well as the original possibility to just replace malloc(),
3481 realloc() and free() by functions that do not know about these
3482 additional arguments. To register and find out the current
3483 settings for extended allocation functions, the following
3484 functions are provided:
3486 CRYPTO_set_mem_ex_functions
3487 CRYPTO_set_locked_mem_ex_functions
3488 CRYPTO_get_mem_ex_functions
3489 CRYPTO_get_locked_mem_ex_functions
3491 These work the same way as CRYPTO_set_mem_functions and friends.
3492 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3493 extended allocation function is enabled.
3494 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3495 a conventional allocation function is enabled.
3496 [Richard Levitte, Bodo Moeller]
3498 *) Finish off removing the remaining LHASH function pointer casts.
3499 There should no longer be any prototype-casting required when using
3500 the LHASH abstraction, and any casts that remain are "bugs". See
3501 the callback types and macros at the head of lhash.h for details
3502 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3505 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3506 If /dev/[u]random devices are not available or do not return enough
3507 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3509 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3510 /etc/entropy will be queried once each in this sequence, quering stops
3511 when enough entropy was collected without querying more sockets.
3514 *) Change the Unix RAND_poll() variant to be able to poll several
3515 random devices, as specified by DEVRANDOM, until a sufficient amount
3516 of data has been collected. We spend at most 10 ms on each file
3517 (select timeout) and read in non-blocking mode. DEVRANDOM now
3518 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3519 (previously it was just the string "/dev/urandom"), so on typical
3520 platforms the 10 ms delay will never occur.
3521 Also separate out the Unix variant to its own file, rand_unix.c.
3522 For VMS, there's a currently-empty rand_vms.c.
3525 *) Move OCSP client related routines to ocsp_cl.c. These
3526 provide utility functions which an application needing
3527 to issue a request to an OCSP responder and analyse the
3528 response will typically need: as opposed to those which an
3529 OCSP responder itself would need which will be added later.
3531 OCSP_request_sign() signs an OCSP request with an API similar
3532 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3533 response. OCSP_response_get1_basic() extracts basic response
3534 from response. OCSP_resp_find_status(): finds and extracts status
3535 information from an OCSP_CERTID structure (which will be created
3536 when the request structure is built). These are built from lower
3537 level functions which work on OCSP_SINGLERESP structures but
3538 wont normally be used unless the application wishes to examine
3539 extensions in the OCSP response for example.
3541 Replace nonce routines with a pair of functions.
3542 OCSP_request_add1_nonce() adds a nonce value and optionally
3543 generates a random value. OCSP_check_nonce() checks the
3544 validity of the nonce in an OCSP response.
3547 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3548 This doesn't copy the supplied OCSP_CERTID and avoids the
3549 need to free up the newly created id. Change return type
3550 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3551 This can then be used to add extensions to the request.
3552 Deleted OCSP_request_new(), since most of its functionality
3553 is now in OCSP_REQUEST_new() (and the case insensitive name
3554 clash) apart from the ability to set the request name which
3555 will be added elsewhere.
3558 *) Update OCSP API. Remove obsolete extensions argument from
3559 various functions. Extensions are now handled using the new
3560 OCSP extension code. New simple OCSP HTTP function which
3561 can be used to send requests and parse the response.
3564 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3565 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3566 uses the special reorder version of SET OF to sort the attributes
3567 and reorder them to match the encoded order. This resolves a long
3568 standing problem: a verify on a PKCS7 structure just after signing
3569 it used to fail because the attribute order did not match the
3570 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3571 it uses the received order. This is necessary to tolerate some broken
3572 software that does not order SET OF. This is handled by encoding
3573 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3574 to produce the required SET OF.
3577 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3578 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3579 files to get correct declarations of the ASN.1 item variables.
3582 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3583 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3584 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3585 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3586 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3587 ASN1_ITEM and no wrapper functions.
3590 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3591 replace the old function pointer based I/O routines. Change most of
3592 the *_d2i_bio() and *_d2i_fp() functions to use these.
3595 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3596 lines, recognice more "algorithms" that can be deselected, and make
3597 it complain about algorithm deselection that isn't recognised.
3600 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3601 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3602 to use new functions. Add NO_ASN1_OLD which can be set to remove
3603 some old style ASN1 functions: this can be used to determine if old
3604 code will still work when these eventually go away.
3607 *) New extension functions for OCSP structures, these follow the
3608 same conventions as certificates and CRLs.
3611 *) New function X509V3_add1_i2d(). This automatically encodes and
3612 adds an extension. Its behaviour can be customised with various
3613 flags to append, replace or delete. Various wrappers added for
3614 certifcates and CRLs.
3617 *) Fix to avoid calling the underlying ASN1 print routine when
3618 an extension cannot be parsed. Correct a typo in the
3619 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3622 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3623 entries for variables.
3626 *) Add functionality to apps/openssl.c for detecting locking
3627 problems: As the program is single-threaded, all we have
3628 to do is register a locking callback using an array for
3629 storing which locks are currently held by the program.
3632 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3633 SSL_get_ex_data_X509_STORE_idx(), which is used in
3634 ssl_verify_cert_chain() and thus can be called at any time
3635 during TLS/SSL handshakes so that thread-safety is essential.
3636 Unfortunately, the ex_data design is not at all suited
3637 for multi-threaded use, so it probably should be abolished.
3640 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3641 [Broadcom, tweaked and integrated by Geoff Thorpe]
3643 *) Move common extension printing code to new function
3644 X509V3_print_extensions(). Reorganise OCSP print routines and
3645 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3648 *) New function X509_signature_print() to remove duplication in some
3652 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3653 set (this was treated exactly the same as SET OF previously). This
3654 is used to reorder the STACK representing the structure to match the
3655 encoding. This will be used to get round a problem where a PKCS7
3656 structure which was signed could not be verified because the STACK
3657 order did not reflect the encoded order.
3660 *) Reimplement the OCSP ASN1 module using the new code.
3663 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3664 for its ASN1 operations. The old style function pointers still exist
3665 for now but they will eventually go away.
3668 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3669 completely replaces the old ASN1 functionality with a table driven
3670 encoder and decoder which interprets an ASN1_ITEM structure describing
3671 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3672 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3673 has also been converted to the new form.
3676 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3677 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3678 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3679 for negative moduli.
3682 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3683 of not touching the result's sign bit.
3686 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3690 *) Changed the LHASH code to use prototypes for callbacks, and created
3691 macros to declare and implement thin (optionally static) functions
3692 that provide type-safety and avoid function pointer casting for the
3693 type-specific callbacks.
3696 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3698 [Veers Staats <staatsvr@asc.hpc.mil>,
3699 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3701 *) Reformat the FAQ so the different questions and answers can be divided
3702 in sections depending on the subject.
3705 *) Have the zlib compression code load ZLIB.DLL dynamically under
3709 *) New function BN_mod_sqrt for computing square roots modulo a prime
3710 (using the probabilistic Tonelli-Shanks algorithm unless
3711 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3712 be handled deterministically).
3713 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3715 *) Make BN_mod_inverse faster by explicitly handling small quotients
3716 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3717 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3720 *) New function BN_kronecker.
3723 *) Fix BN_gcd so that it works on negative inputs; the result is
3724 positive unless both parameters are zero.
3725 Previously something reasonably close to an infinite loop was
3726 possible because numbers could be growing instead of shrinking
3727 in the implementation of Euclid's algorithm.
3730 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3731 sign of the number in question.
3733 Fix BN_is_word(a,w) to work correctly for w == 0.
3735 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3736 because its test if the absolute value of 'a' equals 'w'.
3737 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3738 it exists mostly for use in the implementations of BN_is_zero(),
3739 BN_is_one(), and BN_is_word().
3742 *) New function BN_swap.
3745 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3746 the exponentiation functions are more likely to produce reasonable
3747 results on negative inputs.
3750 *) Change BN_mod_mul so that the result is always non-negative.
3751 Previously, it could be negative if one of the factors was negative;
3752 I don't think anyone really wanted that behaviour.
3755 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3756 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3757 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3758 and add new functions:
3767 BN_mod_lshift1_quick
3771 These functions always generate non-negative results.
3773 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3774 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3776 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3777 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3778 be reduced modulo m.
3779 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3782 The following entry accidentily appeared in the CHANGES file
3783 distributed with OpenSSL 0.9.7. The modifications described in
3784 it do *not* apply to OpenSSL 0.9.7.
3786 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3787 was actually never needed) and in BN_mul(). The removal in BN_mul()
3788 required a small change in bn_mul_part_recursive() and the addition
3789 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3790 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3791 bn_sub_words() and bn_add_words() except they take arrays with
3796 *) In 'openssl passwd', verify passwords read from the terminal
3797 unless the '-salt' option is used (which usually means that
3798 verification would just waste user's time since the resulting
3799 hash is going to be compared with some given password hash)
3800 or the new '-noverify' option is used.
3802 This is an incompatible change, but it does not affect
3803 non-interactive use of 'openssl passwd' (passwords on the command
3804 line, '-stdin' option, '-in ...' option) and thus should not
3808 *) Remove all references to RSAref, since there's no more need for it.
3811 *) Make DSO load along a path given through an environment variable
3812 (SHLIB_PATH) with shl_load().
3815 *) Constify the ENGINE code as a result of BIGNUM constification.
3816 Also constify the RSA code and most things related to it. In a
3817 few places, most notable in the depth of the ASN.1 code, ugly
3818 casts back to non-const were required (to be solved at a later
3822 *) Make it so the openssl application has all engines loaded by default.
3825 *) Constify the BIGNUM routines a little more.
3828 *) Add the following functions:
3830 ENGINE_load_cswift()
3832 ENGINE_load_atalla()
3834 ENGINE_load_builtin_engines()
3836 That way, an application can itself choose if external engines that
3837 are built-in in OpenSSL shall ever be used or not. The benefit is
3838 that applications won't have to be linked with libdl or other dso
3839 libraries unless it's really needed.
3841 Changed 'openssl engine' to load all engines on demand.
3842 Changed the engine header files to avoid the duplication of some
3843 declarations (they differed!).
3846 *) 'openssl engine' can now list capabilities.
3849 *) Better error reporting in 'openssl engine'.
3852 *) Never call load_dh_param(NULL) in s_server.
3855 *) Add engine application. It can currently list engines by name and
3856 identity, and test if they are actually available.
3859 *) Improve RPM specification file by forcing symbolic linking and making
3860 sure the installed documentation is also owned by root.root.
3861 [Damien Miller <djm@mindrot.org>]
3863 *) Give the OpenSSL applications more possibilities to make use of
3864 keys (public as well as private) handled by engines.
3867 *) Add OCSP code that comes from CertCo.
3870 *) Add VMS support for the Rijndael code.
3873 *) Added untested support for Nuron crypto accelerator.
3876 *) Add support for external cryptographic devices. This code was
3877 previously distributed separately as the "engine" branch.
3878 [Geoff Thorpe, Richard Levitte]
3880 *) Rework the filename-translation in the DSO code. It is now possible to
3881 have far greater control over how a "name" is turned into a filename
3882 depending on the operating environment and any oddities about the
3883 different shared library filenames on each system.
3886 *) Support threads on FreeBSD-elf in Configure.
3889 *) Fix for SHA1 assembly problem with MASM: it produces
3890 warnings about corrupt line number information when assembling
3891 with debugging information. This is caused by the overlapping
3893 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3896 NCONF_get_number() has no error checking at all. As a replacement,
3897 NCONF_get_number_e() is defined (_e for "error checking") and is
3898 promoted strongly. The old NCONF_get_number is kept around for
3899 binary backward compatibility.
3900 Make it possible for methods to load from something other than a BIO,
3901 by providing a function pointer that is given a name instead of a BIO.
3902 For example, this could be used to load configuration data from an
3906 *) Fix for non blocking accept BIOs. Added new I/O special reason
3907 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3908 with non blocking I/O was not possible because no retry code was
3909 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3913 *) Added the beginnings of Rijndael support.
3916 *) Fix for bug in DirectoryString mask setting. Add support for
3917 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3918 to allow certificate printing to more controllable, additional
3919 'certopt' option to 'x509' to allow new printing options to be
3923 *) Clean old EAY MD5 hack from e_os.h.
3926 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3928 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3929 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3930 [Joe Orton, Steve Henson]
3932 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3934 *) Fix additional bug revealed by the NISCC test suite:
3936 Stop bug triggering large recursion when presented with
3937 certain ASN.1 tags (CVE-2003-0851)
3940 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3942 *) Fix various bugs revealed by running the NISCC test suite:
3944 Stop out of bounds reads in the ASN1 code when presented with
3945 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3947 If verify callback ignores invalid public key errors don't try to check
3948 certificate signature with the NULL public key.
3952 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3953 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3957 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3958 extra data after the compression methods not only for TLS 1.0
3959 but also for SSL 3.0 (as required by the specification).
3960 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3962 *) Change X509_certificate_type() to mark the key as exported/exportable
3963 when it's 512 *bits* long, not 512 bytes.
3966 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3968 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3969 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3970 a protocol version number mismatch like a decryption error
3971 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3974 *) Turn on RSA blinding by default in the default implementation
3975 to avoid a timing attack. Applications that don't want it can call
3976 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3977 They would be ill-advised to do so in most cases.
3978 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3980 *) Change RSA blinding code so that it works when the PRNG is not
3981 seeded (in this case, the secret RSA exponent is abused as
3982 an unpredictable seed -- if it is not unpredictable, there
3983 is no point in blinding anyway). Make RSA blinding thread-safe
3984 by remembering the creator's thread ID in rsa->blinding and
3985 having all other threads use local one-time blinding factors
3986 (this requires more computation than sharing rsa->blinding, but
3987 avoids excessive locking; and if an RSA object is not shared
3988 between threads, blinding will still be very fast).
3991 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3993 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3994 via timing by performing a MAC computation even if incorrrect
3995 block cipher padding has been found. This is a countermeasure
3996 against active attacks where the attacker has to distinguish
3997 between bad padding and a MAC verification error. (CVE-2003-0078)
3999 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4000 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4001 Martin Vuagnoux (EPFL, Ilion)]
4003 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4005 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4006 memory from it's contents. This is done with a counter that will
4007 place alternating values in each byte. This can be used to solve
4008 two issues: 1) the removal of calls to memset() by highly optimizing
4009 compilers, and 2) cleansing with other values than 0, since those can
4010 be read through on certain media, for example a swap space on disk.
4013 *) Bugfix: client side session caching did not work with external caching,
4014 because the session->cipher setting was not restored when reloading
4015 from the external cache. This problem was masked, when
4016 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4017 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4020 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4021 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4022 [Zeev Lieber <zeev-l@yahoo.com>]
4024 *) Undo an undocumented change introduced in 0.9.6e which caused
4025 repeated calls to OpenSSL_add_all_ciphers() and
4026 OpenSSL_add_all_digests() to be ignored, even after calling
4030 *) Change the default configuration reader to deal with last line not
4031 being properly terminated.
4034 *) Change X509_NAME_cmp() so it applies the special rules on handling
4035 DN values that are of type PrintableString, as well as RDNs of type
4036 emailAddress where the value has the type ia5String.
4037 [stefank@valicert.com via Richard Levitte]
4039 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4040 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4041 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4042 the bitwise-OR of the two for use by the majority of applications
4043 wanting this behaviour, and update the docs. The documented
4044 behaviour and actual behaviour were inconsistent and had been
4045 changing anyway, so this is more a bug-fix than a behavioural
4047 [Geoff Thorpe, diagnosed by Nadav Har'El]
4049 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4050 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4053 *) Fix initialization code race conditions in
4054 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4055 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4056 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4057 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4058 ssl2_get_cipher_by_char(),
4059 ssl3_get_cipher_by_char().
4060 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4062 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4063 the cached sessions are flushed, as the remove_cb() might use ex_data
4064 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4065 (see [openssl.org #212]).
4066 [Geoff Thorpe, Lutz Jaenicke]
4068 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4069 length, instead of the encoding length to d2i_ASN1_OBJECT.
4072 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4074 *) [In 0.9.6g-engine release:]
4075 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4076 [Lynn Gazis <lgazis@rainbow.com>]
4078 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4080 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4081 and get fix the header length calculation.
4082 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4083 Alon Kantor <alonk@checkpoint.com> (and others),
4086 *) Use proper error handling instead of 'assertions' in buffer
4087 overflow checks added in 0.9.6e. This prevents DoS (the
4088 assertions could call abort()).
4089 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4091 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4093 *) Add various sanity checks to asn1_get_length() to reject
4094 the ASN1 length bytes if they exceed sizeof(long), will appear
4095 negative or the content length exceeds the length of the
4097 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4099 *) Fix cipher selection routines: ciphers without encryption had no flags
4100 for the cipher strength set and where therefore not handled correctly
4101 by the selection routines (PR #130).
4104 *) Fix EVP_dsa_sha macro.
4108 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4109 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4110 that was added in OpenSSL 0.9.6d.
4112 As the countermeasure turned out to be incompatible with some
4113 broken SSL implementations, the new option is part of SSL_OP_ALL.
4114 SSL_OP_ALL is usually employed when compatibility with weird SSL
4115 implementations is desired (e.g. '-bugs' option to 's_client' and
4116 's_server'), so the new option is automatically set in many
4120 *) Changes in security patch:
4122 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4123 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4124 Air Force Materiel Command, USAF, under agreement number
4127 *) Add various sanity checks to asn1_get_length() to reject
4128 the ASN1 length bytes if they exceed sizeof(long), will appear
4129 negative or the content length exceeds the length of the
4130 supplied buffer. (CVE-2002-0659)
4131 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4133 *) Assertions for various potential buffer overflows, not known to
4135 [Ben Laurie (CHATS)]
4137 *) Various temporary buffers to hold ASCII versions of integers were
4138 too small for 64 bit platforms. (CVE-2002-0655)
4139 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4141 *) Remote buffer overflow in SSL3 protocol - an attacker could
4142 supply an oversized session ID to a client. (CVE-2002-0656)
4143 [Ben Laurie (CHATS)]
4145 *) Remote buffer overflow in SSL2 protocol - an attacker could
4146 supply an oversized client master key. (CVE-2002-0656)
4147 [Ben Laurie (CHATS)]
4149 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4151 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4152 encoded as NULL) with id-dsa-with-sha1.
4153 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4155 *) Check various X509_...() return values in apps/req.c.
4156 [Nils Larsch <nla@trustcenter.de>]
4158 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4159 an end-of-file condition would erronously be flagged, when the CRLF
4160 was just at the end of a processed block. The bug was discovered when
4161 processing data through a buffering memory BIO handing the data to a
4162 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4163 <ptsekov@syntrex.com> and Nedelcho Stanev.
4166 *) Implement a countermeasure against a vulnerability recently found
4167 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4168 before application data chunks to avoid the use of known IVs
4169 with data potentially chosen by the attacker.
4172 *) Fix length checks in ssl3_get_client_hello().
4175 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4176 to prevent ssl3_read_internal() from incorrectly assuming that
4177 ssl3_read_bytes() found application data while handshake
4178 processing was enabled when in fact s->s3->in_read_app_data was
4179 merely automatically cleared during the initial handshake.
4180 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4182 *) Fix object definitions for Private and Enterprise: they were not
4183 recognized in their shortname (=lowercase) representation. Extend
4184 obj_dat.pl to issue an error when using undefined keywords instead
4185 of silently ignoring the problem (Svenning Sorensen
4186 <sss@sss.dnsalias.net>).
4189 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4190 generators, i.e. generators other than 2 and 5. (Previously, the
4191 code did not properly initialise the 'add' and 'rem' values to
4192 BN_generate_prime().)
4194 In the new general case, we do not insist that 'generator' is
4195 actually a primitive root: This requirement is rather pointless;
4196 a generator of the order-q subgroup is just as good, if not
4200 *) Map new X509 verification errors to alerts. Discovered and submitted by
4201 Tom Wu <tom@arcot.com>.
4204 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4205 returning non-zero before the data has been completely received
4206 when using non-blocking I/O.
4207 [Bodo Moeller; problem pointed out by John Hughes]
4209 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4210 [Ben Laurie, Lutz Jaenicke]
4212 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4213 Yoram Zahavi <YoramZ@gilian.com>).
4216 *) Add information about CygWin 1.3 and on, and preserve proper
4217 configuration for the versions before that.
4218 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4220 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4221 check whether we deal with a copy of a session and do not delete from
4222 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4223 <izhar@checkpoint.com>.
4226 *) Do not store session data into the internal session cache, if it
4227 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4228 flag is set). Proposed by Aslam <aslam@funk.com>.
4231 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4235 *) [In 0.9.6d-engine release:]
4236 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4237 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4239 *) Add the configuration target linux-s390x.
4240 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4242 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4243 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4244 variable as an indication that a ClientHello message has been
4245 received. As the flag value will be lost between multiple
4246 invocations of ssl3_accept when using non-blocking I/O, the
4247 function may not be aware that a handshake has actually taken
4248 place, thus preventing a new session from being added to the
4251 To avoid this problem, we now set s->new_session to 2 instead of
4252 using a local variable.
4253 [Lutz Jaenicke, Bodo Moeller]
4255 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4256 if the SSL_R_LENGTH_MISMATCH error is detected.
4257 [Geoff Thorpe, Bodo Moeller]
4259 *) New 'shared_ldflag' column in Configure platform table.
4262 *) Fix EVP_CIPHER_mode macro.
4263 ["Dan S. Camper" <dan@bti.net>]
4265 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4266 type, we must throw them away by setting rr->length to 0.
4267 [D P Chang <dpc@qualys.com>]
4269 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4271 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4272 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4273 worked incorrectly for those cases where range = 10..._2 and
4274 3*range is two bits longer than range.)
4277 *) Only add signing time to PKCS7 structures if it is not already
4281 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4282 OBJ_ld_ce should be OBJ_id_ce.
4283 Also some ip-pda OIDs in crypto/objects/objects.txt were
4284 incorrect (cf. RFC 3039).
4285 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4287 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4288 returns early because it has nothing to do.
4289 [Andy Schneider <andy.schneider@bjss.co.uk>]
4291 *) [In 0.9.6c-engine release:]
4292 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4293 [Andy Schneider <andy.schneider@bjss.co.uk>]
4295 *) [In 0.9.6c-engine release:]
4296 Add support for Cryptographic Appliance's keyserver technology.
4297 (Use engine 'keyclient')
4298 [Cryptographic Appliances and Geoff Thorpe]
4300 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4301 is called via tools/c89.sh because arguments have to be
4302 rearranged (all '-L' options must appear before the first object
4304 [Richard Shapiro <rshapiro@abinitio.com>]
4306 *) [In 0.9.6c-engine release:]
4307 Add support for Broadcom crypto accelerator cards, backported
4309 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4311 *) [In 0.9.6c-engine release:]
4312 Add support for SureWare crypto accelerator cards from
4313 Baltimore Technologies. (Use engine 'sureware')
4314 [Baltimore Technologies and Mark Cox]
4316 *) [In 0.9.6c-engine release:]
4317 Add support for crypto accelerator cards from Accelerated
4318 Encryption Processing, www.aep.ie. (Use engine 'aep')
4319 [AEP Inc. and Mark Cox]
4321 *) Add a configuration entry for gcc on UnixWare.
4322 [Gary Benson <gbenson@redhat.com>]
4324 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4325 messages are stored in a single piece (fixed-length part and
4326 variable-length part combined) and fix various bugs found on the way.
4329 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4330 instead. BIO_gethostbyname() does not know what timeouts are
4331 appropriate, so entries would stay in cache even when they have
4333 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4335 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4336 faced with a pathologically small ClientHello fragment that does
4337 not contain client_version: Instead of aborting with an error,
4338 simply choose the highest available protocol version (i.e.,
4339 TLS 1.0 unless it is disabled). In practice, ClientHello
4340 messages are never sent like this, but this change gives us
4341 strictly correct behaviour at least for TLS.
4344 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4345 never resets s->method to s->ctx->method when called from within
4346 one of the SSL handshake functions.
4347 [Bodo Moeller; problem pointed out by Niko Baric]
4349 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4350 (sent using the client's version number) if client_version is
4351 smaller than the protocol version in use. Also change
4352 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4353 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4354 the client will at least see that alert.
4357 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4361 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4362 client receives HelloRequest while in a handshake.
4363 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4365 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4366 should end in 'break', not 'goto end' which circuments various
4367 cleanups done in state SSL_ST_OK. But session related stuff
4368 must be disabled for SSL_ST_OK in the case that we just sent a
4371 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4372 before just sending a HelloRequest.
4373 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4375 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4376 reveal whether illegal block cipher padding was found or a MAC
4377 verification error occured. (Neither SSLerr() codes nor alerts
4378 are directly visible to potential attackers, but the information
4379 may leak via logfiles.)
4381 Similar changes are not required for the SSL 2.0 implementation
4382 because the number of padding bytes is sent in clear for SSL 2.0,
4383 and the extra bytes are just ignored. However ssl/s2_pkt.c
4384 failed to verify that the purported number of padding bytes is in
4388 *) Add OpenUNIX-8 support including shared libraries
4389 (Boyd Lynn Gerber <gerberb@zenez.com>).
4392 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4393 'wristwatch attack' using huge encoding parameters (cf.
4394 James H. Manger's CRYPTO 2001 paper). Note that the
4395 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4396 encoding parameters and hence was not vulnerable.
4399 *) BN_sqr() bug fix.
4400 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4402 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4403 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4404 followed by modular reduction.
4405 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4407 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4408 equivalent based on BN_pseudo_rand() instead of BN_rand().
4411 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4412 This function was broken, as the check for a new client hello message
4413 to handle SGC did not allow these large messages.
4414 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4417 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4420 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4421 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4424 *) Rework the configuration and shared library support for Tru64 Unix.
4425 The configuration part makes use of modern compiler features and
4426 still retains old compiler behavior for those that run older versions
4427 of the OS. The shared library support part includes a variant that
4428 uses the RPATH feature, and is available through the special
4429 configuration target "alpha-cc-rpath", which will never be selected
4431 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4433 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4434 with the same message size as in ssl3_get_certificate_request().
4435 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4436 messages might inadvertently be reject as too long.
4437 [Petr Lampa <lampa@fee.vutbr.cz>]
4439 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4442 *) Modified SSL library such that the verify_callback that has been set
4443 specificly for an SSL object with SSL_set_verify() is actually being
4444 used. Before the change, a verify_callback set with this function was
4445 ignored and the verify_callback() set in the SSL_CTX at the time of
4446 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4447 to allow the necessary settings.
4450 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4451 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4452 done automatically (in contradiction to the requirements of the C
4453 standard). This made problems when used from OpenSSH.
4456 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4457 dh->length and always used
4459 BN_rand_range(priv_key, dh->p).
4461 BN_rand_range() is not necessary for Diffie-Hellman, and this
4462 specific range makes Diffie-Hellman unnecessarily inefficient if
4463 dh->length (recommended exponent length) is much smaller than the
4464 length of dh->p. We could use BN_rand_range() if the order of
4465 the subgroup was stored in the DH structure, but we only have
4470 BN_rand(priv_key, l, ...)
4472 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4478 RSA_eay_public_encrypt
4479 RSA_eay_private_decrypt
4480 RSA_eay_private_encrypt (signing)
4481 RSA_eay_public_decrypt (signature verification)
4483 (default implementations for RSA_public_encrypt,
4484 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4485 always reject numbers >= n.
4488 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4489 to synchronize access to 'locking_thread'. This is necessary on
4490 systems where access to 'locking_thread' (an 'unsigned long'
4491 variable) is not atomic.
4494 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4495 *before* setting the 'crypto_lock_rand' flag. The previous code had
4496 a race condition if 0 is a valid thread ID.
4497 [Travis Vitek <vitek@roguewave.com>]
4499 *) Add support for shared libraries under Irix.
4500 [Albert Chin-A-Young <china@thewrittenword.com>]
4502 *) Add configuration option to build on Linux on both big-endian and
4504 [Ralf Baechle <ralf@uni-koblenz.de>]
4506 *) Add the possibility to create shared libraries on HP-UX.
4509 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4511 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4512 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4513 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4514 PRNG state recovery was possible based on the output of
4515 one PRNG request appropriately sized to gain knowledge on
4516 'md' followed by enough consecutive 1-byte PRNG requests
4517 to traverse all of 'state'.
4519 1. When updating 'md_local' (the current thread's copy of 'md')
4520 during PRNG output generation, hash all of the previous
4521 'md_local' value, not just the half used for PRNG output.
4523 2. Make the number of bytes from 'state' included into the hash
4524 independent from the number of PRNG bytes requested.
4526 The first measure alone would be sufficient to avoid
4527 Markku-Juhani's attack. (Actually it had never occurred
4528 to me that the half of 'md_local' used for chaining was the
4529 half from which PRNG output bytes were taken -- I had always
4530 assumed that the secret half would be used.) The second
4531 measure makes sure that additional data from 'state' is never
4532 mixed into 'md_local' in small portions; this heuristically
4533 further strengthens the PRNG.
4536 *) Fix crypto/bn/asm/mips3.s.
4539 *) When only the key is given to "enc", the IV is undefined. Print out
4540 an error message in this case.
4543 *) Handle special case when X509_NAME is empty in X509 printing routines.
4546 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4547 positive and less than q.
4550 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4551 used: it isn't thread safe and the add_lock_callback should handle
4553 [Paul Rose <Paul.Rose@bridge.com>]
4555 *) Verify that incoming data obeys the block size in
4556 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4560 [Ulf Möller, Bodo Möller]
4562 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4563 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4564 when fixing the server behaviour for backwards-compatible 'client
4565 hello' messages. (Note that the attack is impractical against
4566 SSL 3.0 and TLS 1.0 anyway because length and version checking
4567 means that the probability of guessing a valid ciphertext is
4568 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4571 Before 0.9.5, the countermeasure (hide the error by generating a
4572 random 'decryption result') did not work properly because
4573 ERR_clear_error() was missing, meaning that SSL_get_error() would
4574 detect the supposedly ignored error.
4576 Both problems are now fixed.
4579 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4580 (previously it was 1024).
4583 *) Fix for compatibility mode trust settings: ignore trust settings
4584 unless some valid trust or reject settings are present.
4587 *) Fix for blowfish EVP: its a variable length cipher.
4590 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4591 parameters in DSA public key structures and return an error in the
4592 DSA routines if parameters are absent.
4595 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4596 in the current directory if neither $RANDFILE nor $HOME was set.
4597 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4598 caused some confusion to Windows users who haven't defined $HOME.
4599 Thus RAND_file_name() is changed again: e_os.h can define a
4600 DEFAULT_HOME, which will be used if $HOME is not set.
4601 For Windows, we use "C:"; on other platforms, we still require
4602 environment variables.
4604 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4605 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4606 having multiple threads call RAND_poll() concurrently.
4609 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4610 combination of a flag and a thread ID variable.
4611 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4612 flag), *other* threads can enter ssleay_add_bytes without obeying
4613 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4614 that they do not hold after the first thread unsets add_do_not_lock).
4617 *) Change bctest again: '-x' expressions are not available in all
4621 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4623 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4624 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4626 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4627 the default extension for executables, if any. Also, make the perl
4628 scripts that use symlink() to test if it really exists and use "cp"
4629 if it doesn't. All this made OpenSSL compilable and installable in
4633 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4634 If SEQUENCE is length is indefinite just set c->slen to the total
4635 amount of data available.
4636 [Steve Henson, reported by shige@FreeBSD.org]
4637 [This change does not apply to 0.9.7.]
4639 *) Change bctest to avoid here-documents inside command substitution
4640 (workaround for FreeBSD /bin/sh bug).
4641 For compatibility with Ultrix, avoid shell functions (introduced
4642 in the bctest version that searches along $PATH).
4645 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4646 with des_encrypt() defined on some operating systems, like Solaris
4650 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4651 On the Importance of Eliminating Errors in Cryptographic
4652 Computations, J. Cryptology 14 (2001) 2, 101-119,
4653 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4656 *) MIPS assembler BIGNUM division bug fix.
4659 *) Disabled incorrect Alpha assembler code.
4662 *) Fix PKCS#7 decode routines so they correctly update the length
4663 after reading an EOC for the EXPLICIT tag.
4665 [This change does not apply to 0.9.7.]
4667 *) Fix bug in PKCS#12 key generation routines. This was triggered
4668 if a 3DES key was generated with a 0 initial byte. Include
4669 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4670 (but broken) behaviour.
4673 *) Enhance bctest to search for a working bc along $PATH and print
4675 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4677 *) Fix memory leaks in err.c: free err_data string if necessary;
4678 don't write to the wrong index in ERR_set_error_data.
4681 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4685 *) Replace rdtsc with _emit statements for VC++ version 5.
4686 [Jeremy Cooper <jeremy@baymoo.org>]
4688 *) Make it possible to reuse SSLv2 sessions.
4691 *) In copy_email() check for >= 0 as a return value for
4692 X509_NAME_get_index_by_NID() since 0 is a valid index.
4693 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4695 *) Avoid coredump with unsupported or invalid public keys by checking if
4696 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4697 PKCS7_verify() fails with non detached data.
4700 *) Don't use getenv in library functions when run as setuid/setgid.
4701 New function OPENSSL_issetugid().
4704 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4705 due to incorrect handling of multi-threading:
4707 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4709 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4711 3. Count how many times MemCheck_off() has been called so that
4712 nested use can be treated correctly. This also avoids
4713 inband-signalling in the previous code (which relied on the
4714 assumption that thread ID 0 is impossible).
4717 *) Add "-rand" option also to s_client and s_server.
4720 *) Fix CPU detection on Irix 6.x.
4721 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4722 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4724 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4727 [This change does not apply to 0.9.7.]
4729 *) Use the cached encoding of an X509_NAME structure rather than
4730 copying it. This is apparently the reason for the libsafe "errors"
4731 but the code is actually correct.
4734 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4735 Bleichenbacher's DSA attack.
4736 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4737 to be set and top=0 forces the highest bit to be set; top=-1 is new
4738 and leaves the highest bit random.
4739 [Ulf Moeller, Bodo Moeller]
4741 *) In the NCONF_...-based implementations for CONF_... queries
4742 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4743 a temporary CONF structure with the data component set to NULL
4744 (which gives segmentation faults in lh_retrieve).
4745 Instead, use NULL for the CONF pointer in CONF_get_string and
4746 CONF_get_number (which may use environment variables) and directly
4747 return NULL from CONF_get_section.
4750 *) Fix potential buffer overrun for EBCDIC.
4753 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4754 keyUsage if basicConstraints absent for a CA.
4757 *) Make SMIME_write_PKCS7() write mail header values with a format that
4758 is more generally accepted (no spaces before the semicolon), since
4759 some programs can't parse those values properly otherwise. Also make
4760 sure BIO's that break lines after each write do not create invalid
4764 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4765 macros previously used would not encode an empty SEQUENCE OF
4766 and break the signature.
4768 [This change does not apply to 0.9.7.]
4770 *) Zero the premaster secret after deriving the master secret in
4774 *) Add some EVP_add_digest_alias registrations (as found in
4775 OpenSSL_add_all_digests()) to SSL_library_init()
4776 aka OpenSSL_add_ssl_algorithms(). This provides improved
4777 compatibility with peers using X.509 certificates
4778 with unconventional AlgorithmIdentifier OIDs.
4781 *) Fix for Irix with NO_ASM.
4782 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4784 *) ./config script fixes.
4785 [Ulf Moeller, Richard Levitte]
4787 *) Fix 'openssl passwd -1'.
4790 *) Change PKCS12_key_gen_asc() so it can cope with non null
4791 terminated strings whose length is passed in the passlen
4792 parameter, for example from PEM callbacks. This was done
4793 by adding an extra length parameter to asc2uni().
4794 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4796 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4797 call failed, free the DSA structure.
4800 *) Fix to uni2asc() to cope with zero length Unicode strings.
4801 These are present in some PKCS#12 files.
4804 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4805 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4806 when writing a 32767 byte record.
4807 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4809 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4810 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4812 (RSA objects have a reference count access to which is protected
4813 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4814 so they are meant to be shared between threads.)
4815 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4816 "Reddie, Steven" <Steven.Reddie@ca.com>]
4818 *) Fix a deadlock in CRYPTO_mem_leaks().
4821 *) Use better test patterns in bntest.
4824 *) rand_win.c fix for Borland C.
4827 *) BN_rshift bugfix for n == 0.
4830 *) Add a 'bctest' script that checks for some known 'bc' bugs
4831 so that 'make test' does not abort just because 'bc' is broken.
4834 *) Store verify_result within SSL_SESSION also for client side to
4835 avoid potential security hole. (Re-used sessions on the client side
4836 always resulted in verify_result==X509_V_OK, not using the original
4837 result of the server certificate verification.)
4840 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4841 SSL3_RT_APPLICATION_DATA, return 0.
4842 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4846 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4847 releases, have been re-implemented by renaming the previous
4848 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4849 and ssl3_read_internal, respectively, and adding 'peek' parameters
4850 to them. The new ssl[23]_{read,peek} functions are calls to
4851 ssl[23]_read_internal with the 'peek' flag set appropriately.
4852 A 'peek' parameter has also been added to ssl3_read_bytes, which
4853 does the actual work for ssl3_read_internal.
4856 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4857 the method-specific "init()" handler. Also clean up ex_data after
4858 calling the method-specific "finish()" handler. Previously, this was
4859 happening the other way round.
4862 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4863 The previous value, 12, was not always sufficient for BN_mod_exp().
4866 *) Make sure that shared libraries get the internal name engine with
4867 the full version number and not just 0. This should mark the
4868 shared libraries as not backward compatible. Of course, this should
4869 be changed again when we can guarantee backward binary compatibility.
4872 *) Fix typo in get_cert_by_subject() in by_dir.c
4873 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4875 *) Rework the system to generate shared libraries:
4877 - Make note of the expected extension for the shared libraries and
4878 if there is a need for symbolic links from for example libcrypto.so.0
4879 to libcrypto.so.0.9.7. There is extended info in Configure for
4882 - Make as few rebuilds of the shared libraries as possible.
4884 - Still avoid linking the OpenSSL programs with the shared libraries.
4886 - When installing, install the shared libraries separately from the
4890 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4892 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4893 and not in SSL_clear because the latter is also used by the
4894 accept/connect functions; previously, the settings made by
4895 SSL_set_read_ahead would be lost during the handshake.
4896 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4898 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4899 Previously, it would create entries for disableed algorithms no
4903 *) Added several new manual pages for SSL_* function.
4906 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4908 *) In ssl23_get_client_hello, generate an error message when faced
4909 with an initial SSL 3.0/TLS record that is too small to contain the
4910 first two bytes of the ClientHello message, i.e. client_version.
4911 (Note that this is a pathologic case that probably has never happened
4912 in real life.) The previous approach was to use the version number
4913 from the record header as a substitute; but our protocol choice
4914 should not depend on that one because it is not authenticated
4915 by the Finished messages.
4918 *) More robust randomness gathering functions for Windows.
4919 [Jeffrey Altman <jaltman@columbia.edu>]
4921 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4922 not set then we don't setup the error code for issuer check errors
4923 to avoid possibly overwriting other errors which the callback does
4924 handle. If an application does set the flag then we assume it knows
4925 what it is doing and can handle the new informational codes
4929 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4930 a general "ANY" type, as such it should be able to decode anything
4931 including tagged types. However it didn't check the class so it would
4932 wrongly interpret tagged types in the same way as their universal
4933 counterpart and unknown types were just rejected. Changed so that the
4934 tagged and unknown types are handled in the same way as a SEQUENCE:
4935 that is the encoding is stored intact. There is also a new type
4936 "V_ASN1_OTHER" which is used when the class is not universal, in this
4937 case we have no idea what the actual type is so we just lump them all
4941 *) On VMS, stdout may very well lead to a file that is written to
4942 in a record-oriented fashion. That means that every write() will
4943 write a separate record, which will be read separately by the
4944 programs trying to read from it. This can be very confusing.
4946 The solution is to put a BIO filter in the way that will buffer
4947 text until a linefeed is reached, and then write everything a
4948 line at a time, so every record written will be an actual line,
4949 not chunks of lines and not (usually doesn't happen, but I've
4950 seen it once) several lines in one record. BIO_f_linebuffer() is
4953 Currently, it's a VMS-only method, because that's where it has
4954 been tested well enough.
4957 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4958 it can return incorrect results.
4959 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4960 but it was in 0.9.6-beta[12].)
4963 *) Disable the check for content being present when verifying detached
4964 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4965 include zero length content when signing messages.
4968 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4969 BIO_ctrl (for BIO pairs).
4972 *) Add DSO method for VMS.
4975 *) Bug fix: Montgomery multiplication could produce results with the
4979 *) Add RPM specification openssl.spec and modify it to build three
4980 packages. The default package contains applications, application
4981 documentation and run-time libraries. The devel package contains
4982 include files, static libraries and function documentation. The
4983 doc package contains the contents of the doc directory. The original
4984 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4987 *) Add a large number of documentation files for many SSL routines.
4988 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4990 *) Add a configuration entry for Sony News 4.
4991 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4993 *) Don't set the two most significant bits to one when generating a
4994 random number < q in the DSA library.
4997 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4998 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4999 the underlying transport is blocking) if a handshake took place.
5000 (The default behaviour is needed by applications such as s_client
5001 and s_server that use select() to determine when to use SSL_read;
5002 but for applications that know in advance when to expect data, it
5003 just makes things more complicated.)
5006 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5010 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5011 work better on such systems.
5012 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5014 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5015 Update PKCS12_parse() so it copies the friendlyName and the
5016 keyid to the certificates aux info.
5019 *) Fix bug in PKCS7_verify() which caused an infinite loop
5020 if there was more than one signature.
5021 [Sven Uszpelkat <su@celocom.de>]
5023 *) Major change in util/mkdef.pl to include extra information
5024 about each symbol, as well as presentig variables as well
5025 as functions. This change means that there's n more need
5026 to rebuild the .num files when some algorithms are excluded.
5029 *) Allow the verify time to be set by an application,
5030 rather than always using the current time.
5033 *) Phase 2 verify code reorganisation. The certificate
5034 verify code now looks up an issuer certificate by a
5035 number of criteria: subject name, authority key id
5036 and key usage. It also verifies self signed certificates
5037 by the same criteria. The main comparison function is
5038 X509_check_issued() which performs these checks.
5040 Lot of changes were necessary in order to support this
5041 without completely rewriting the lookup code.
5043 Authority and subject key identifier are now cached.
5045 The LHASH 'certs' is X509_STORE has now been replaced
5046 by a STACK_OF(X509_OBJECT). This is mainly because an
5047 LHASH can't store or retrieve multiple objects with
5048 the same hash value.
5050 As a result various functions (which were all internal
5051 use only) have changed to handle the new X509_STORE
5052 structure. This will break anything that messed round
5053 with X509_STORE internally.
5055 The functions X509_STORE_add_cert() now checks for an
5056 exact match, rather than just subject name.
5058 The X509_STORE API doesn't directly support the retrieval
5059 of multiple certificates matching a given criteria, however
5060 this can be worked round by performing a lookup first
5061 (which will fill the cache with candidate certificates)
5062 and then examining the cache for matches. This is probably
5063 the best we can do without throwing out X509_LOOKUP
5064 entirely (maybe later...).
5066 The X509_VERIFY_CTX structure has been enhanced considerably.
5068 All certificate lookup operations now go via a get_issuer()
5069 callback. Although this currently uses an X509_STORE it
5070 can be replaced by custom lookups. This is a simple way
5071 to bypass the X509_STORE hackery necessary to make this
5072 work and makes it possible to use more efficient techniques
5073 in future. A very simple version which uses a simple
5074 STACK for its trusted certificate store is also provided
5075 using X509_STORE_CTX_trusted_stack().
5077 The verify_cb() and verify() callbacks now have equivalents
5078 in the X509_STORE_CTX structure.
5080 X509_STORE_CTX also has a 'flags' field which can be used
5081 to customise the verify behaviour.
5084 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5085 excludes S/MIME capabilities.
5088 *) When a certificate request is read in keep a copy of the
5089 original encoding of the signed data and use it when outputing
5090 again. Signatures then use the original encoding rather than
5091 a decoded, encoded version which may cause problems if the
5092 request is improperly encoded.
5095 *) For consistency with other BIO_puts implementations, call
5096 buffer_write(b, ...) directly in buffer_puts instead of calling
5099 In BIO_puts, increment b->num_write as in BIO_write.
5100 [Peter.Sylvester@EdelWeb.fr]
5102 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5103 BN_zero, we may not return a BIGNUM with an array consisting of
5107 *) Avoid calling abort() from within the library when problems are
5108 detected, except if preprocessor symbols have been defined
5109 (such as REF_CHECK, BN_DEBUG etc.).
5112 *) New openssl application 'rsautl'. This utility can be
5113 used for low level RSA operations. DER public key
5114 BIO/fp routines also added.
5117 *) New Configure entry and patches for compiling on QNX 4.
5118 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5120 *) A demo state-machine implementation was sponsored by
5121 Nuron (http://www.nuron.com/) and is now available in
5122 demos/state_machine.
5125 *) New options added to the 'dgst' utility for signature
5126 generation and verification.
5129 *) Unrecognized PKCS#7 content types are now handled via a
5130 catch all ASN1_TYPE structure. This allows unsupported
5131 types to be stored as a "blob" and an application can
5132 encode and decode it manually.
5135 *) Fix various signed/unsigned issues to make a_strex.c
5137 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5139 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5140 length if passed a buffer. ASN1_INTEGER_to_BN failed
5141 if passed a NULL BN and its argument was negative.
5142 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5144 *) Modification to PKCS#7 encoding routines to output definite
5145 length encoding. Since currently the whole structures are in
5146 memory there's not real point in using indefinite length
5147 constructed encoding. However if OpenSSL is compiled with
5148 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5151 *) Added BIO_vprintf() and BIO_vsnprintf().
5154 *) Added more prefixes to parse for in the the strings written
5155 through a logging bio, to cover all the levels that are available
5156 through syslog. The prefixes are now:
5158 PANIC, EMERG, EMR => LOG_EMERG
5159 ALERT, ALR => LOG_ALERT
5160 CRIT, CRI => LOG_CRIT
5161 ERROR, ERR => LOG_ERR
5162 WARNING, WARN, WAR => LOG_WARNING
5163 NOTICE, NOTE, NOT => LOG_NOTICE
5164 INFO, INF => LOG_INFO
5165 DEBUG, DBG => LOG_DEBUG
5167 and as before, if none of those prefixes are present at the
5168 beginning of the string, LOG_ERR is chosen.
5170 On Win32, the LOG_* levels are mapped according to this:
5172 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5173 LOG_WARNING => EVENTLOG_WARNING_TYPE
5174 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5178 *) Made it possible to reconfigure with just the configuration
5179 argument "reconf" or "reconfigure". The command line arguments
5180 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5181 and are retrieved from there when reconfiguring.
5185 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5187 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5190 *) The obj_dat.pl script was messing up the sorting of object
5191 names. The reason was that it compared the quoted version
5192 of strings as a result "OCSP" > "OCSP Signing" because
5193 " > SPACE. Changed script to store unquoted versions of
5194 names and add quotes on output. It was also omitting some
5195 names from the lookup table if they were given a default
5196 value (that is if SN is missing it is given the same
5197 value as LN and vice versa), these are now added on the
5198 grounds that if an object has a name we should be able to
5199 look it up. Finally added warning output when duplicate
5200 short or long names are found.
5203 *) Changes needed for Tandem NSK.
5204 [Scott Uroff <scott@xypro.com>]
5206 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5207 RSA_padding_check_SSLv23(), special padding was never detected
5208 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5209 version rollback attacks was not effective.
5211 In s23_clnt.c, don't use special rollback-attack detection padding
5212 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5213 client; similarly, in s23_srvr.c, don't do the rollback check if
5214 SSL 2.0 is the only protocol enabled in the server.
5217 *) Make it possible to get hexdumps of unprintable data with 'openssl
5218 asn1parse'. By implication, the functions ASN1_parse_dump() and
5219 BIO_dump_indent() are added.
5222 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5223 these print out strings and name structures based on various
5224 flags including RFC2253 support and proper handling of
5225 multibyte characters. Added options to the 'x509' utility
5226 to allow the various flags to be set.
5229 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5230 Also change the functions X509_cmp_current_time() and
5231 X509_gmtime_adj() work with an ASN1_TIME structure,
5232 this will enable certificates using GeneralizedTime in validity
5233 dates to be checked.
5236 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5237 negative public key encodings) on by default,
5238 NO_NEG_PUBKEY_BUG can be set to disable it.
5241 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5242 content octets. An i2c_ASN1_OBJECT is unnecessary because
5243 the encoding can be trivially obtained from the structure.
5246 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5247 not read locks (CRYPTO_r_[un]lock).
5250 *) A first attempt at creating official support for shared
5251 libraries through configuration. I've kept it so the
5252 default is static libraries only, and the OpenSSL programs
5253 are always statically linked for now, but there are
5254 preparations for dynamic linking in place.
5255 This has been tested on Linux and Tru64.
5258 *) Randomness polling function for Win9x, as described in:
5259 Peter Gutmann, Software Generation of Practically Strong
5263 *) Fix so PRNG is seeded in req if using an already existing
5267 *) New options to smime application. -inform and -outform
5268 allow alternative formats for the S/MIME message including
5269 PEM and DER. The -content option allows the content to be
5270 specified separately. This should allow things like Netscape
5271 form signing output easier to verify.
5274 *) Fix the ASN1 encoding of tags using the 'long form'.
5277 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5278 STRING types. These convert content octets to and from the
5279 underlying type. The actual tag and length octets are
5280 already assumed to have been read in and checked. These
5281 are needed because all other string types have virtually
5282 identical handling apart from the tag. By having versions
5283 of the ASN1 functions that just operate on content octets
5284 IMPLICIT tagging can be handled properly. It also allows
5285 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5286 and ASN1_INTEGER are identical apart from the tag.
5289 *) Change the handling of OID objects as follows:
5291 - New object identifiers are inserted in objects.txt, following
5292 the syntax given in objects.README.
5293 - objects.pl is used to process obj_mac.num and create a new
5295 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5298 This is currently kind of a hack, and the perl code in objects.pl
5299 isn't very elegant, but it works as I intended. The simplest way
5300 to check that it worked correctly is to look in obj_dat.h and
5301 check the array nid_objs and make sure the objects haven't moved
5302 around (this is important!). Additions are OK, as well as
5303 consistent name changes.
5306 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5309 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5310 The given file adds to whatever has already been seeded into the
5311 random pool through the RANDFILE configuration file option or
5312 environment variable, or the default random state file.
5315 *) mkstack.pl now sorts each macro group into lexical order.
5316 Previously the output order depended on the order the files
5317 appeared in the directory, resulting in needless rewriting
5321 *) Patches to make OpenSSL compile under Win32 again. Mostly
5322 work arounds for the VC++ problem that it treats func() as
5323 func(void). Also stripped out the parts of mkdef.pl that
5324 added extra typesafe functions: these no longer exist.
5327 *) Reorganisation of the stack code. The macros are now all
5328 collected in safestack.h . Each macro is defined in terms of
5329 a "stack macro" of the form SKM_<name>(type, a, b). The
5330 DEBUG_SAFESTACK is now handled in terms of function casts,
5331 this has the advantage of retaining type safety without the
5332 use of additional functions. If DEBUG_SAFESTACK is not defined
5333 then the non typesafe macros are used instead. Also modified the
5334 mkstack.pl script to handle the new form. Needs testing to see
5335 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5336 the default if no major problems. Similar behaviour for ASN1_SET_OF
5337 and PKCS12_STACK_OF.
5340 *) When some versions of IIS use the 'NET' form of private key the
5341 key derivation algorithm is different. Normally MD5(password) is
5342 used as a 128 bit RC4 key. In the modified case
5343 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5344 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5345 as the old Netscape_RSA functions except they have an additional
5346 'sgckey' parameter which uses the modified algorithm. Also added
5347 an -sgckey command line option to the rsa utility. Thanks to
5348 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5349 algorithm to openssl-dev.
5352 *) The evp_local.h macros were using 'c.##kname' which resulted in
5353 invalid expansion on some systems (SCO 5.0.5 for example).
5354 Corrected to 'c.kname'.
5355 [Phillip Porch <root@theporch.com>]
5357 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5358 a STACK of email addresses from a certificate or request, these look
5359 in the subject name and the subject alternative name extensions and
5360 omit any duplicate addresses.
5363 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5364 This makes DSA verification about 2 % faster.
5367 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5368 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5369 plus overhead for 1024 bit moduli).
5370 This makes exponentiations about 0.5 % faster for 1024 bit
5371 exponents (as measured by "openssl speed rsa2048").
5374 *) Rename memory handling macros to avoid conflicts with other
5376 Malloc => OPENSSL_malloc
5377 Malloc_locked => OPENSSL_malloc_locked
5378 Realloc => OPENSSL_realloc
5379 Free => OPENSSL_free
5382 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5383 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5386 *) CygWin32 support.
5387 [John Jarvie <jjarvie@newsguy.com>]
5389 *) The type-safe stack code has been rejigged. It is now only compiled
5390 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5391 by default all type-specific stack functions are "#define"d back to
5392 standard stack functions. This results in more streamlined output
5393 but retains the type-safety checking possibilities of the original
5397 *) The STACK code has been cleaned up, and certain type declarations
5398 that didn't make a lot of sense have been brought in line. This has
5399 also involved a cleanup of sorts in safestack.h to more correctly
5400 map type-safe stack functions onto their plain stack counterparts.
5401 This work has also resulted in a variety of "const"ifications of
5402 lots of the code, especially "_cmp" operations which should normally
5403 be prototyped with "const" parameters anyway.
5406 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5407 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5408 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5409 where all of 'md' is used each time the PRNG is used, but 'state'
5410 is used only indexed by a cyclic counter. As entropy may not be
5411 well distributed from the beginning, 'md' is important as a
5412 chaining variable. However, the output function chains only half
5413 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5414 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5415 in all of 'state' being rewritten, with the new values depending
5416 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5419 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5420 the handshake is continued after ssl_verify_cert_chain();
5421 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5422 can lead to 'unexplainable' connection aborts later.
5423 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5425 *) Major EVP API cipher revision.
5426 Add hooks for extra EVP features. This allows various cipher
5427 parameters to be set in the EVP interface. Support added for variable
5428 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5429 setting of RC2 and RC5 parameters.
5431 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5434 Remove lots of duplicated code from the EVP library. For example *every*
5435 cipher init() function handles the 'iv' in the same way according to the
5436 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5437 for CFB and OFB modes they zero ctx->num.
5439 New functionality allows removal of S/MIME code RC2 hack.
5441 Most of the routines have the same form and so can be declared in terms
5444 By shifting this to the top level EVP_CipherInit() it can be removed from
5445 all individual ciphers. If the cipher wants to handle IVs or keys
5446 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5449 Change lots of functions like EVP_EncryptUpdate() to now return a
5450 value: although software versions of the algorithms cannot fail
5451 any installed hardware versions can.
5454 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5455 this option is set, tolerate broken clients that send the negotiated
5456 protocol version number instead of the requested protocol version
5460 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5461 i.e. non-zero for export ciphersuites, zero otherwise.
5462 Previous versions had this flag inverted, inconsistent with
5463 rsa_tmp_cb (..._TMP_RSA_CB).
5464 [Bodo Moeller; problem reported by Amit Chopra]
5466 *) Add missing DSA library text string. Work around for some IIS
5467 key files with invalid SEQUENCE encoding.
5470 *) Add a document (doc/standards.txt) that list all kinds of standards
5471 and so on that are implemented in OpenSSL.
5474 *) Enhance c_rehash script. Old version would mishandle certificates
5475 with the same subject name hash and wouldn't handle CRLs at all.
5476 Added -fingerprint option to crl utility, to support new c_rehash
5480 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5483 *) Fix for SSL server purpose checking. Server checking was
5484 rejecting certificates which had extended key usage present
5485 but no ssl client purpose.
5486 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5488 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5489 is a little unclear about how a blank password is handled.
5490 Since the password in encoded as a BMPString with terminating
5491 double NULL a zero length password would end up as just the
5492 double NULL. However no password at all is different and is
5493 handled differently in the PKCS#12 key generation code. NS
5494 treats a blank password as zero length. MSIE treats it as no
5495 password on export: but it will try both on import. We now do
5496 the same: PKCS12_parse() tries zero length and no password if
5497 the password is set to "" or NULL (NULL is now a valid password:
5498 it wasn't before) as does the pkcs12 application.
5501 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5502 perror when PEM_read_bio_X509_REQ fails, the error message must
5503 be obtained from the error queue.
5506 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5507 it in ERR_remove_state if appropriate, and change ERR_get_state
5508 accordingly to avoid race conditions (this is necessary because
5509 thread_hash is no longer constant once set).
5512 *) Bugfix for linux-elf makefile.one.
5515 *) RSA_get_default_method() will now cause a default
5516 RSA_METHOD to be chosen if one doesn't exist already.
5517 Previously this was only set during a call to RSA_new()
5518 or RSA_new_method(NULL) meaning it was possible for
5519 RSA_get_default_method() to return NULL.
5522 *) Added native name translation to the existing DSO code
5523 that will convert (if the flag to do so is set) filenames
5524 that are sufficiently small and have no path information
5525 into a canonical native form. Eg. "blah" converted to
5526 "libblah.so" or "blah.dll" etc.
5529 *) New function ERR_error_string_n(e, buf, len) which is like
5530 ERR_error_string(e, buf), but writes at most 'len' bytes
5531 including the 0 terminator. For ERR_error_string_n, 'buf'
5533 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5535 *) CONF library reworked to become more general. A new CONF
5536 configuration file reader "class" is implemented as well as a
5537 new functions (NCONF_*, for "New CONF") to handle it. The now
5538 old CONF_* functions are still there, but are reimplemented to
5539 work in terms of the new functions. Also, a set of functions
5540 to handle the internal storage of the configuration data is
5541 provided to make it easier to write new configuration file
5542 reader "classes" (I can definitely see something reading a
5543 configuration file in XML format, for example), called _CONF_*,
5544 or "the configuration storage API"...
5546 The new configuration file reading functions are:
5548 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5549 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5551 NCONF_default, NCONF_WIN32
5553 NCONF_dump_fp, NCONF_dump_bio
5555 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5556 NCONF_new creates a new CONF object. This works in the same way
5557 as other interfaces in OpenSSL, like the BIO interface.
5558 NCONF_dump_* dump the internal storage of the configuration file,
5559 which is useful for debugging. All other functions take the same
5560 arguments as the old CONF_* functions wth the exception of the
5561 first that must be a `CONF *' instead of a `LHASH *'.
5563 To make it easer to use the new classes with the old CONF_* functions,
5564 the function CONF_set_default_method is provided.
5567 *) Add '-tls1' option to 'openssl ciphers', which was already
5568 mentioned in the documentation but had not been implemented.
5569 (This option is not yet really useful because even the additional
5570 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5573 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5574 OpenSSL-based applications) load shared libraries and bind to
5575 them in a portable way.
5576 [Geoff Thorpe, with contributions from Richard Levitte]
5578 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5580 *) Make sure _lrotl and _lrotr are only used with MSVC.
5582 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5583 (the default implementation of RAND_status).
5585 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5586 to '-clrext' (= clear extensions), as intended and documented.
5587 [Bodo Moeller; inconsistency pointed out by Michael Attili
5590 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5591 was larger than the MD block size.
5592 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5594 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5595 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5596 using the passed key: if the passed key was a private key the result
5597 of X509_print(), for example, would be to print out all the private key
5601 *) des_quad_cksum() byte order bug fix.
5602 [Ulf Möller, using the problem description in krb4-0.9.7, where
5603 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5605 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5607 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5609 *) For easily testing in shell scripts whether some command
5610 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5611 returns with exit code 0 iff no command of the given name is available.
5612 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5613 the output goes to stdout and nothing is printed to stderr.
5614 Additional arguments are always ignored.
5616 Since for each cipher there is a command of the same name,
5617 the 'no-cipher' compilation switches can be tested this way.
5619 ('openssl no-XXX' is not able to detect pseudo-commands such
5620 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5623 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5626 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5627 is set; it will be thrown away anyway because each handshake creates
5629 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5630 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5631 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5632 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5635 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5636 'Q' and 'R' lose their special meanings (quit/renegotiate).
5637 This is part of what -quiet does; unlike -quiet, -ign_eof
5638 does not suppress any output.
5641 *) Add compatibility options to the purpose and trust code. The
5642 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5643 accepts a certificate or CA, this was the previous behaviour,
5644 with all the associated security issues.
5646 X509_TRUST_COMPAT is the old trust behaviour: only and
5647 automatically trust self signed roots in certificate store. A
5648 new trust setting X509_TRUST_DEFAULT is used to specify that
5649 a purpose has no associated trust setting and it should instead
5650 use the value in the default purpose.
5653 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5654 and fix a memory leak.
5657 *) In util/mkerr.pl (which implements 'make errors'), preserve
5658 reason strings from the previous version of the .c file, as
5659 the default to have only downcase letters (and digits) in
5660 automatically generated reasons codes is not always appropriate.
5663 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5664 using strerror. Previously, ERR_reason_error_string() returned
5665 library names as reason strings for SYSerr; but SYSerr is a special
5666 case where small numbers are errno values, not library numbers.
5669 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5670 converts DSA parameters into DH parameters. (When creating parameters,
5671 DSA_generate_parameters is used.)
5674 *) Include 'length' (recommended exponent length) in C code generated
5675 by 'openssl dhparam -C'.
5678 *) The second argument to set_label in perlasm was already being used
5679 so couldn't be used as a "file scope" flag. Moved to third argument
5683 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5684 instead of RAND_bytes for encryption IVs and salts.
5687 *) Include RAND_status() into RAND_METHOD instead of implementing
5688 it only for md_rand.c Otherwise replacing the PRNG by calling
5689 RAND_set_rand_method would be impossible.
5692 *) Don't let DSA_generate_key() enter an infinite loop if the random
5693 number generation fails.
5696 *) New 'rand' application for creating pseudo-random output.
5699 *) Added configuration support for Linux/IA64
5700 [Rolf Haberrecker <rolf@suse.de>]
5702 *) Assembler module support for Mingw32.
5705 *) Shared library support for HPUX (in shlib/).
5706 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5708 *) Shared library support for Solaris gcc.
5709 [Lutz Behnke <behnke@trustcenter.de>]
5711 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5713 *) PKCS7_encrypt() was adding text MIME headers twice because they
5714 were added manually and by SMIME_crlf_copy().
5717 *) In bntest.c don't call BN_rand with zero bits argument.
5718 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5720 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5721 case was implemented. This caused BN_div_recp() to fail occasionally.
5724 *) Add an optional second argument to the set_label() in the perl
5725 assembly language builder. If this argument exists and is set
5726 to 1 it signals that the assembler should use a symbol whose
5727 scope is the entire file, not just the current function. This
5728 is needed with MASM which uses the format label:: for this scope.
5729 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5731 *) Change the ASN1 types so they are typedefs by default. Before
5732 almost all types were #define'd to ASN1_STRING which was causing
5733 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5737 *) Change names of new functions to the new get1/get0 naming
5738 convention: After 'get1', the caller owns a reference count
5739 and has to call ..._free; 'get0' returns a pointer to some
5740 data structure without incrementing reference counters.
5741 (Some of the existing 'get' functions increment a reference
5742 counter, some don't.)
5743 Similarly, 'set1' and 'add1' functions increase reference
5744 counters or duplicate objects.
5747 *) Allow for the possibility of temp RSA key generation failure:
5748 the code used to assume it always worked and crashed on failure.
5751 *) Fix potential buffer overrun problem in BIO_printf().
5752 [Ulf Möller, using public domain code by Patrick Powell; problem
5753 pointed out by David Sacerdote <das33@cornell.edu>]
5755 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5756 RAND_egd() and RAND_status(). In the command line application,
5757 the EGD socket can be specified like a seed file using RANDFILE
5761 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5762 Some CAs (e.g. Verisign) distribute certificates in this form.
5765 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5766 list to exclude them. This means that no special compilation option
5767 is needed to use anonymous DH: it just needs to be included in the
5771 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5772 EVP_MD_type. The old functionality is available in a new macro called
5773 EVP_MD_md(). Change code that uses it and update docs.
5776 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5777 where the 'void *' argument is replaced by a function pointer argument.
5778 Previously 'void *' was abused to point to functions, which works on
5779 many platforms, but is not correct. As these functions are usually
5780 called by macros defined in OpenSSL header files, most source code
5781 should work without changes.
5784 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5785 sections with information on -D... compiler switches used for
5786 compiling the library so that applications can see them. To enable
5787 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5788 must be defined. E.g.,
5789 #define OPENSSL_ALGORITHM_DEFINES
5790 #include <openssl/opensslconf.h>
5791 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5792 [Richard Levitte, Ulf and Bodo Möller]
5794 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5798 *) Change the 'other' type in certificate aux info to a STACK_OF
5799 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5800 the required ASN1 format: arbitrary types determined by an OID.
5803 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5804 argument to 'req'. This is not because the function is newer or
5805 better than others it just uses the work 'NEW' in the certificate
5806 request header lines. Some software needs this.
5809 *) Reorganise password command line arguments: now passwords can be
5810 obtained from various sources. Delete the PEM_cb function and make
5811 it the default behaviour: i.e. if the callback is NULL and the
5812 usrdata argument is not NULL interpret it as a null terminated pass
5813 phrase. If usrdata and the callback are NULL then the pass phrase
5814 is prompted for as usual.
5817 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5818 the support is automatically enabled. The resulting binaries will
5819 autodetect the card and use it if present.
5820 [Ben Laurie and Compaq Inc.]
5822 *) Work around for Netscape hang bug. This sends certificate request
5823 and server done in one record. Since this is perfectly legal in the
5824 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5825 the bugs/SSLv3 entry for more info.
5828 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5831 *) Add -rand argument to smime and pkcs12 applications and read/write
5835 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5838 *) Add command line password options to the remaining applications.
5841 *) Bug fix for BN_div_recp() for numerators with an even number of
5845 *) More tests in bntest.c, and changed test_bn output.
5848 *) ./config recognizes MacOS X now.
5851 *) Bug fix for BN_div() when the first words of num and divsor are
5852 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5855 *) Add support for various broken PKCS#8 formats, and command line
5856 options to produce them.
5859 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5860 get temporary BIGNUMs from a BN_CTX.
5863 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5867 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5868 include a #define from the old name to the new. The original intent
5869 was that statically linked binaries could for example just call
5870 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5871 link with digests. This never worked becayse SSLeay_add_all_digests()
5872 and SSLeay_add_all_ciphers() were in the same source file so calling
5873 one would link with the other. They are now in separate source files.
5876 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5879 *) Use a less unusual form of the Miller-Rabin primality test (it used
5880 a binary algorithm for exponentiation integrated into the Miller-Rabin
5881 loop, our standard modexp algorithms are faster).
5884 *) Support for the EBCDIC character set completed.
5885 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5887 *) Source code cleanups: use const where appropriate, eliminate casts,
5888 use void * instead of char * in lhash.
5891 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5892 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5893 this the server could overwrite ephemeral keys that the client
5897 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5898 using 50 iterations of the Rabin-Miller test.
5900 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5901 iterations of the Rabin-Miller test as required by the appendix
5902 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5903 As BN_is_prime_fasttest includes trial division, DSA parameter
5904 generation becomes much faster.
5906 This implies a change for the callback functions in DSA_is_prime
5907 and DSA_generate_parameters: The callback function is called once
5908 for each positive witness in the Rabin-Miller test, not just
5909 occasionally in the inner loop; and the parameters to the
5910 callback function now provide an iteration count for the outer
5911 loop rather than for the current invocation of the inner loop.
5912 DSA_generate_parameters additionally can call the callback
5913 function with an 'iteration count' of -1, meaning that a
5914 candidate has passed the trial division test (when q is generated
5915 from an application-provided seed, trial division is skipped).
5918 *) New function BN_is_prime_fasttest that optionally does trial
5919 division before starting the Rabin-Miller test and has
5920 an additional BN_CTX * argument (whereas BN_is_prime always
5921 has to allocate at least one BN_CTX).
5922 'callback(1, -1, cb_arg)' is called when a number has passed the
5923 trial division stage.
5926 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5930 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5933 *) New function BN_pseudo_rand().
5936 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5937 bignum version of BN_from_montgomery() with the working code from
5938 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5942 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5943 made it impossible to use the same SSL_SESSION data structure in
5944 SSL2 clients in multiple threads.
5947 *) The return value of RAND_load_file() no longer counts bytes obtained
5948 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5949 to seed the PRNG (previously an explicit byte count was required).
5950 [Ulf Möller, Bodo Möller]
5952 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5953 used (char *) instead of (void *) and had casts all over the place.
5956 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5959 *) Retain source code compatibility for BN_prime_checks macro:
5960 BN_is_prime(..., BN_prime_checks, ...) now uses
5961 BN_prime_checks_for_size to determine the appropriate number of
5962 Rabin-Miller iterations.
5965 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5966 DH_CHECK_P_NOT_SAFE_PRIME.
5967 (Check if this is true? OpenPGP calls them "strong".)
5970 *) Merge the functionality of "dh" and "gendh" programs into a new program
5971 "dhparam". The old programs are retained for now but will handle DH keys
5972 (instead of parameters) in future.
5975 *) Make the ciphers, s_server and s_client programs check the return values
5976 when a new cipher list is set.
5979 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5980 ciphers. Before when the 56bit ciphers were enabled the sorting was
5983 The syntax for the cipher sorting has been extended to support sorting by
5984 cipher-strength (using the strength_bits hard coded in the tables).
5985 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5987 Fix a bug in the cipher-command parser: when supplying a cipher command
5988 string with an "undefined" symbol (neither command nor alphanumeric
5989 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5990 an error is flagged.
5992 Due to the strength-sorting extension, the code of the
5993 ssl_create_cipher_list() function was completely rearranged. I hope that
5994 the readability was also increased :-)
5995 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5997 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5998 for the first serial number and places 2 in the serial number file. This
5999 avoids problems when the root CA is created with serial number zero and
6000 the first user certificate has the same issuer name and serial number
6004 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6005 the new code. Add documentation for this stuff.
6008 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6009 X509_*() to X509at_*() on the grounds that they don't handle X509
6010 structures and behave in an analagous way to the X509v3 functions:
6011 they shouldn't be called directly but wrapper functions should be used
6014 So we also now have some wrapper functions that call the X509at functions
6015 when passed certificate requests. (TO DO: similar things can be done with
6016 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6017 things. Some of these need some d2i or i2d and print functionality
6018 because they handle more complex structures.)
6021 *) Add missing #ifndefs that caused missing symbols when building libssl
6022 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6023 NO_RSA in ssl/s2*.c.
6024 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6026 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6027 has a return value which indicates the quality of the random data
6028 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6029 error queue. New function RAND_pseudo_bytes() generates output that is
6030 guaranteed to be unique but not unpredictable. RAND_add is like
6031 RAND_seed, but takes an extra argument for an entropy estimate
6032 (RAND_seed always assumes full entropy).
6035 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6036 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6037 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6038 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6039 false-positive rate of at most 2^-80 for random input.
6042 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6045 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6046 in the 0.9.5 release), this returns the chain
6047 from an X509_CTX structure with a dup of the stack and all
6048 the X509 reference counts upped: so the stack will exist
6049 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6052 Also make SSL_SESSION_print() print out the verify return
6056 *) Add manpage for the pkcs12 command. Also change the default
6057 behaviour so MAC iteration counts are used unless the new
6058 -nomaciter option is used. This improves file security and
6059 only older versions of MSIE (4.0 for example) need it.
6062 *) Honor the no-xxx Configure options when creating .DEF files.
6065 *) Add PKCS#10 attributes to field table: challengePassword,
6066 unstructuredName and unstructuredAddress. These are taken from
6067 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6068 international characters are used.
6070 More changes to X509_ATTRIBUTE code: allow the setting of types
6071 based on strings. Remove the 'loc' parameter when adding
6072 attributes because these will be a SET OF encoding which is sorted
6076 *) Initial changes to the 'req' utility to allow request generation
6077 automation. This will allow an application to just generate a template
6078 file containing all the field values and have req construct the
6081 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6082 used all over the place including certificate requests and PKCS#7
6083 structures. They are currently handled manually where necessary with
6084 some primitive wrappers for PKCS#7. The new functions behave in a
6085 manner analogous to the X509 extension functions: they allow
6086 attributes to be looked up by NID and added.
6088 Later something similar to the X509V3 code would be desirable to
6089 automatically handle the encoding, decoding and printing of the
6090 more complex types. The string types like challengePassword can
6091 be handled by the string table functions.
6093 Also modified the multi byte string table handling. Now there is
6094 a 'global mask' which masks out certain types. The table itself
6095 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6096 is useful when for example there is only one permissible type
6097 (as in countryName) and using the mask might result in no valid
6101 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6102 SSL_get_peer_finished to allow applications to obtain the latest
6103 Finished messages sent to the peer or expected from the peer,
6104 respectively. (SSL_get_peer_finished is usually the Finished message
6105 actually received from the peer, otherwise the protocol will be aborted.)
6107 As the Finished message are message digests of the complete handshake
6108 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6109 be used for external authentication procedures when the authentication
6110 provided by SSL/TLS is not desired or is not enough.
6113 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6114 the host supports BWX extension and if Compaq C is present on the
6115 $PATH. Just exploiting of the BWX extension results in 20-30%
6116 performance kick for some algorithms, e.g. DES and RC4 to mention
6117 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6121 *) Add support for MS "fast SGC". This is arguably a violation of the
6122 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6123 weak crypto and after checking the certificate is SGC a second one
6124 with strong crypto. MS SGC stops the first handshake after receiving
6125 the server certificate message and sends a second client hello. Since
6126 a server will typically do all the time consuming operations before
6127 expecting any further messages from the client (server key exchange
6128 is the most expensive) there is little difference between the two.
6130 To get OpenSSL to support MS SGC we have to permit a second client
6131 hello message after we have sent server done. In addition we have to
6132 reset the MAC if we do get this second client hello.
6135 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6136 if a DER encoded private key is RSA or DSA traditional format. Changed
6137 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6138 format DER encoded private key. Newer code should use PKCS#8 format which
6139 has the key type encoded in the ASN1 structure. Added DER private key
6140 support to pkcs8 application.
6143 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6144 ciphersuites has been selected (as required by the SSL 3/TLS 1
6145 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6146 is set, we interpret this as a request to violate the specification
6147 (the worst that can happen is a handshake failure, and 'correct'
6148 behaviour would result in a handshake failure anyway).
6151 *) In SSL_CTX_add_session, take into account that there might be multiple
6152 SSL_SESSION structures with the same session ID (e.g. when two threads
6153 concurrently obtain them from an external cache).
6154 The internal cache can handle only one SSL_SESSION with a given ID,
6155 so if there's a conflict, we now throw out the old one to achieve
6159 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6160 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6161 some routines that use cipher OIDs: some ciphers do not have OIDs
6162 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6166 *) Simplify the trust setting structure and code. Now we just have
6167 two sequences of OIDs for trusted and rejected settings. These will
6168 typically have values the same as the extended key usage extension
6169 and any application specific purposes.
6171 The trust checking code now has a default behaviour: it will just
6172 check for an object with the same NID as the passed id. Functions can
6173 be provided to override either the default behaviour or the behaviour
6174 for a given id. SSL client, server and email already have functions
6175 in place for compatibility: they check the NID and also return "trusted"
6176 if the certificate is self signed.
6179 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6180 traditional format into an EVP_PKEY structure.
6183 *) Add a password callback function PEM_cb() which either prompts for
6184 a password if usr_data is NULL or otherwise assumes it is a null
6185 terminated password. Allow passwords to be passed on command line
6186 environment or config files in a few more utilities.
6189 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6190 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6191 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6192 Update documentation.
6195 *) Support for ASN1 "NULL" type. This could be handled before by using
6196 ASN1_TYPE but there wasn't any function that would try to read a NULL
6197 and produce an error if it couldn't. For compatibility we also have
6198 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6199 don't allocate anything because they don't need to.
6202 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6204 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6206 *) Rebuild of the memory allocation routines used by OpenSSL code and
6207 possibly others as well. The purpose is to make an interface that
6208 provide hooks so anyone can build a separate set of allocation and
6209 deallocation routines to be used by OpenSSL, for example memory
6210 pool implementations, or something else, which was previously hard
6211 since Malloc(), Realloc() and Free() were defined as macros having
6212 the values malloc, realloc and free, respectively (except for Win32
6213 compilations). The same is provided for memory debugging code.
6214 OpenSSL already comes with functionality to find memory leaks, but
6215 this gives people a chance to debug other memory problems.
6217 With these changes, a new set of functions and macros have appeared:
6219 CRYPTO_set_mem_debug_functions() [F]
6220 CRYPTO_get_mem_debug_functions() [F]
6221 CRYPTO_dbg_set_options() [F]
6222 CRYPTO_dbg_get_options() [F]
6223 CRYPTO_malloc_debug_init() [M]
6225 The memory debug functions are NULL by default, unless the library
6226 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6227 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6228 gives the standard debugging functions that come with OpenSSL) or
6229 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6230 provided by the library user) must be used. When the standard
6231 debugging functions are used, CRYPTO_dbg_set_options can be used to
6232 request additional information:
6233 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6234 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6236 Also, things like CRYPTO_set_mem_functions will always give the
6237 expected result (the new set of functions is used for allocation
6238 and deallocation) at all times, regardless of platform and compiler
6241 To finish it up, some functions that were never use in any other
6242 way than through macros have a new API and new semantic:
6245 CRYPTO_dbg_realloc()
6248 All macros of value have retained their old syntax.
6249 [Richard Levitte and Bodo Moeller]
6251 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6252 ordering of SMIMECapabilities wasn't in "strength order" and there
6253 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6257 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6258 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6259 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6261 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6262 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6263 functionality to handle multipart/signed properly) and a utility
6264 called 'smime' to call all this stuff. This is based on code I
6265 originally wrote for Celo who have kindly allowed it to be
6266 included in OpenSSL.
6269 *) Add variants des_set_key_checked and des_set_key_unchecked of
6270 des_set_key (aka des_key_sched). Global variable des_check_key
6271 decides which of these is called by des_set_key; this way
6272 des_check_key behaves as it always did, but applications and
6273 the library itself, which was buggy for des_check_key == 1,
6274 have a cleaner way to pick the version they need.
6277 *) New function PKCS12_newpass() which changes the password of a
6281 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6282 dynamic mix. In both cases the ids can be used as an index into the
6283 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6284 functions so they accept a list of the field values and the
6285 application doesn't need to directly manipulate the X509_TRUST
6289 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6293 *) Modify the way the V3 extension code looks up extensions. This now
6294 works in a similar way to the object code: we have some "standard"
6295 extensions in a static table which is searched with OBJ_bsearch()
6296 and the application can add dynamic ones if needed. The file
6297 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6298 updated whenever a new extension is added to the core code and kept
6299 in ext_nid order. There is a simple program 'tabtest.c' which checks
6300 this. New extensions are not added too often so this file can readily
6301 be maintained manually.
6303 There are two big advantages in doing things this way. The extensions
6304 can be looked up immediately and no longer need to be "added" using
6305 X509V3_add_standard_extensions(): this function now does nothing.
6306 [Side note: I get *lots* of email saying the extension code doesn't
6307 work because people forget to call this function]
6308 Also no dynamic allocation is done unless new extensions are added:
6309 so if we don't add custom extensions there is no need to call
6310 X509V3_EXT_cleanup().
6313 *) Modify enc utility's salting as follows: make salting the default. Add a
6314 magic header, so unsalted files fail gracefully instead of just decrypting
6315 to garbage. This is because not salting is a big security hole, so people
6316 should be discouraged from doing it.
6319 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6320 digest to be passed on the command line but it only used this
6321 parameter when signing a certificate. Modified so all relevant
6322 operations are affected by the digest parameter including the
6323 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6324 DSA key was used because it didn't fix the digest.
6327 *) Initial certificate chain verify code. Currently tests the untrusted
6328 certificates for consistency with the verify purpose (which is set
6329 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6331 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6332 this is because it will reject chains with invalid extensions whereas
6333 every previous version of OpenSSL and SSLeay made no checks at all.
6335 Trust code: checks the root CA for the relevant trust settings. Trust
6336 settings have an initial value consistent with the verify purpose: e.g.
6337 if the verify purpose is for SSL client use it expects the CA to be
6338 trusted for SSL client use. However the default value can be changed to
6339 permit custom trust settings: one example of this would be to only trust
6340 certificates from a specific "secure" set of CAs.
6342 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6343 which should be used for version portability: especially since the
6344 verify structure is likely to change more often now.
6346 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6347 to set them. If not set then assume SSL clients will verify SSL servers
6350 Two new options to the verify program: -untrusted allows a set of
6351 untrusted certificates to be passed in and -purpose which sets the
6352 intended purpose of the certificate. If a purpose is set then the
6353 new chain verify code is used to check extension consistency.
6356 *) Support for the authority information access extension.
6359 *) Modify RSA and DSA PEM read routines to transparently handle
6360 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6361 public keys in a format compatible with certificate
6362 SubjectPublicKeyInfo structures. Unfortunately there were already
6363 functions called *_PublicKey_* which used various odd formats so
6364 these are retained for compatibility: however the DSA variants were
6365 never in a public release so they have been deleted. Changed dsa/rsa
6366 utilities to handle the new format: note no releases ever handled public
6367 keys so we should be OK.
6369 The primary motivation for this change is to avoid the same fiasco
6370 that dogs private keys: there are several incompatible private key
6371 formats some of which are standard and some OpenSSL specific and
6372 require various evil hacks to allow partial transparent handling and
6373 even then it doesn't work with DER formats. Given the option anything
6374 other than PKCS#8 should be dumped: but the other formats have to
6375 stay in the name of compatibility.
6377 With public keys and the benefit of hindsight one standard format
6378 is used which works with EVP_PKEY, RSA or DSA structures: though
6379 it clearly returns an error if you try to read the wrong kind of key.
6381 Added a -pubkey option to the 'x509' utility to output the public key.
6382 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6383 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6384 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6385 that do the same as the EVP_PKEY_assign_*() except they up the
6386 reference count of the added key (they don't "swallow" the
6390 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6391 CRLs would fail if the file contained no certificates or no CRLs:
6392 added a new function to read in both types and return the number
6393 read: this means that if none are read it will be an error. The
6394 DER versions of the certificate and CRL reader would always fail
6395 because it isn't possible to mix certificates and CRLs in DER format
6396 without choking one or the other routine. Changed this to just read
6397 a certificate: this is the best we can do. Also modified the code
6398 in apps/verify.c to take notice of return codes: it was previously
6399 attempting to read in certificates from NULL pointers and ignoring
6400 any errors: this is one reason why the cert and CRL reader seemed
6401 to work. It doesn't check return codes from the default certificate
6402 routines: these may well fail if the certificates aren't installed.
6405 *) Code to support otherName option in GeneralName.
6408 *) First update to verify code. Change the verify utility
6409 so it warns if it is passed a self signed certificate:
6410 for consistency with the normal behaviour. X509_verify
6411 has been modified to it will now verify a self signed
6412 certificate if *exactly* the same certificate appears
6413 in the store: it was previously impossible to trust a
6414 single self signed certificate. This means that:
6415 openssl verify ss.pem
6416 now gives a warning about a self signed certificate but
6417 openssl verify -CAfile ss.pem ss.pem
6421 *) For servers, store verify_result in SSL_SESSION data structure
6422 (and add it to external session representation).
6423 This is needed when client certificate verifications fails,
6424 but an application-provided verification callback (set by
6425 SSL_CTX_set_cert_verify_callback) allows accepting the session
6426 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6427 but returns 1): When the session is reused, we have to set
6428 ssl->verify_result to the appropriate error code to avoid
6430 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6432 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6433 case in PKCS7_dataInit() where the signed PKCS7 structure
6434 didn't contain any existing data because it was being created.
6435 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6437 *) Add a salt to the key derivation routines in enc.c. This
6438 forms the first 8 bytes of the encrypted file. Also add a
6439 -S option to allow a salt to be input on the command line.
6442 *) New function X509_cmp(). Oddly enough there wasn't a function
6443 to compare two certificates. We do this by working out the SHA1
6444 hash and comparing that. X509_cmp() will be needed by the trust
6448 *) SSL_get1_session() is like SSL_get_session(), but increments
6449 the reference count in the SSL_SESSION returned.
6450 [Geoff Thorpe <geoff@eu.c2.net>]
6452 *) Fix for 'req': it was adding a null to request attributes.
6453 Also change the X509_LOOKUP and X509_INFO code to handle
6454 certificate auxiliary information.
6457 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6461 *) Add the possibility to add extra information to the memory leak
6462 detecting output, to form tracebacks, showing from where each
6463 allocation was originated: CRYPTO_push_info("constant string") adds
6464 the string plus current file name and line number to a per-thread
6465 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6466 is like calling CYRPTO_pop_info() until the stack is empty.
6467 Also updated memory leak detection code to be multi-thread-safe.
6470 *) Add options -text and -noout to pkcs7 utility and delete the
6471 encryption options which never did anything. Update docs.
6474 *) Add options to some of the utilities to allow the pass phrase
6475 to be included on either the command line (not recommended on
6476 OSes like Unix) or read from the environment. Update the
6477 manpages and fix a few bugs.
6480 *) Add a few manpages for some of the openssl commands.
6483 *) Fix the -revoke option in ca. It was freeing up memory twice,
6484 leaking and not finding already revoked certificates.
6487 *) Extensive changes to support certificate auxiliary information.
6488 This involves the use of X509_CERT_AUX structure and X509_AUX
6489 functions. An X509_AUX function such as PEM_read_X509_AUX()
6490 can still read in a certificate file in the usual way but it
6491 will also read in any additional "auxiliary information". By
6492 doing things this way a fair degree of compatibility can be
6493 retained: existing certificates can have this information added
6494 using the new 'x509' options.
6496 Current auxiliary information includes an "alias" and some trust
6497 settings. The trust settings will ultimately be used in enhanced
6498 certificate chain verification routines: currently a certificate
6499 can only be trusted if it is self signed and then it is trusted
6503 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6504 The problem was that one of the replacement routines had not been working
6505 since SSLeay releases. For now the offending routine has been replaced
6506 with non-optimised assembler. Even so, this now gives around 95%
6507 performance improvement for 1024 bit RSA signs.
6510 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6511 handling. Most clients have the effective key size in bits equal to
6512 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6513 A few however don't do this and instead use the size of the decrypted key
6514 to determine the RC2 key length and the AlgorithmIdentifier to determine
6515 the effective key length. In this case the effective key length can still
6516 be 40 bits but the key length can be 168 bits for example. This is fixed
6517 by manually forcing an RC2 key into the EVP_PKEY structure because the
6518 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6519 the key length and effective key length are equal.
6522 *) Add a bunch of functions that should simplify the creation of
6523 X509_NAME structures. Now you should be able to do:
6524 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6525 and have it automatically work out the correct field type and fill in
6526 the structures. The more adventurous can try:
6527 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6528 and it will (hopefully) work out the correct multibyte encoding.
6531 *) Change the 'req' utility to use the new field handling and multibyte
6532 copy routines. Before the DN field creation was handled in an ad hoc
6533 way in req, ca, and x509 which was rather broken and didn't support
6534 BMPStrings or UTF8Strings. Since some software doesn't implement
6535 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6536 using the dirstring_type option. See the new comment in the default
6537 openssl.cnf for more info.
6540 *) Make crypto/rand/md_rand.c more robust:
6541 - Assure unique random numbers after fork().
6542 - Make sure that concurrent threads access the global counter and
6543 md serializably so that we never lose entropy in them
6544 or use exactly the same state in multiple threads.
6545 Access to the large state is not always serializable because
6546 the additional locking could be a performance killer, and
6547 md should be large enough anyway.
6550 *) New file apps/app_rand.c with commonly needed functionality
6551 for handling the random seed file.
6553 Use the random seed file in some applications that previously did not:
6555 dsaparam -genkey (which also ignored its '-rand' option),
6558 x509 (when signing).
6559 Except on systems with /dev/urandom, it is crucial to have a random
6560 seed file at least for key creation, DSA signing, and for DH exchanges;
6561 for RSA signatures we could do without one.
6563 gendh and gendsa (unlike genrsa) used to read only the first byte
6564 of each file listed in the '-rand' option. The function as previously
6565 found in genrsa is now in app_rand.c and is used by all programs
6566 that support '-rand'.
6569 *) In RAND_write_file, use mode 0600 for creating files;
6570 don't just chmod when it may be too late.
6573 *) Report an error from X509_STORE_load_locations
6574 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6577 *) New function ASN1_mbstring_copy() this copies a string in either
6578 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6579 into an ASN1_STRING type. A mask of permissible types is passed
6580 and it chooses the "minimal" type to use or an error if not type
6584 *) Add function equivalents to the various macros in asn1.h. The old
6585 macros are retained with an M_ prefix. Code inside the library can
6586 use the M_ macros. External code (including the openssl utility)
6587 should *NOT* in order to be "shared library friendly".
6590 *) Add various functions that can check a certificate's extensions
6591 to see if it usable for various purposes such as SSL client,
6592 server or S/MIME and CAs of these types. This is currently
6593 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6594 verification. Also added a -purpose flag to x509 utility to
6595 print out all the purposes.
6598 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6602 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6603 for, obtain and decode and extension and obtain its critical flag.
6604 This allows all the necessary extension code to be handled in a
6605 single function call.
6608 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6609 platforms. See crypto/rc4/rc4_enc.c for further details.
6612 *) New -noout option to asn1parse. This causes no output to be produced
6613 its main use is when combined with -strparse and -out to extract data
6614 from a file (which may not be in ASN.1 format).
6617 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6618 when producing the local key id.
6619 [Richard Levitte <levitte@stacken.kth.se>]
6621 *) New option -dhparam in s_server. This allows a DH parameter file to be
6622 stated explicitly. If it is not stated then it tries the first server
6623 certificate file. The previous behaviour hard coded the filename
6627 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6628 a public key to be input or output. For example:
6629 openssl rsa -in key.pem -pubout -out pubkey.pem
6630 Also added necessary DSA public key functions to handle this.
6633 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6634 in the message. This was handled by allowing
6635 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6636 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6638 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6639 to the end of the strings whereas this didn't. This would cause problems
6640 if strings read with d2i_ASN1_bytes() were later modified.
6641 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6643 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6644 data and it contains EOF it will end up returning an error. This is
6645 caused by input 46 bytes long. The cause is due to the way base64
6646 BIOs find the start of base64 encoded data. They do this by trying a
6647 trial decode on each line until they find one that works. When they
6648 do a flag is set and it starts again knowing it can pass all the
6649 data directly through the decoder. Unfortunately it doesn't reset
6650 the context it uses. This means that if EOF is reached an attempt
6651 is made to pass two EOFs through the context and this causes the
6652 resulting error. This can also cause other problems as well. As is
6653 usual with these problems it takes *ages* to find and the fix is
6654 trivial: move one line.
6655 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6657 *) Ugly workaround to get s_client and s_server working under Windows. The
6658 old code wouldn't work because it needed to select() on sockets and the
6659 tty (for keypresses and to see if data could be written). Win32 only
6660 supports select() on sockets so we select() with a 1s timeout on the
6661 sockets and then see if any characters are waiting to be read, if none
6662 are present then we retry, we also assume we can always write data to
6663 the tty. This isn't nice because the code then blocks until we've
6664 received a complete line of data and it is effectively polling the
6665 keyboard at 1s intervals: however it's quite a bit better than not
6666 working at all :-) A dedicated Windows application might handle this
6667 with an event loop for example.
6670 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6671 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6672 will be called when RSA_sign() and RSA_verify() are used. This is useful
6673 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6674 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6675 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6676 This necessitated the support of an extra signature type NID_md5_sha1
6677 for SSL signatures and modifications to the SSL library to use it instead
6678 of calling RSA_public_decrypt() and RSA_private_encrypt().
6681 *) Add new -verify -CAfile and -CApath options to the crl program, these
6682 will lookup a CRL issuers certificate and verify the signature in a
6683 similar way to the verify program. Tidy up the crl program so it
6684 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6685 less strict. It will now permit CRL extensions even if it is not
6686 a V2 CRL: this will allow it to tolerate some broken CRLs.
6689 *) Initialize all non-automatic variables each time one of the openssl
6690 sub-programs is started (this is necessary as they may be started
6691 multiple times from the "OpenSSL>" prompt).
6692 [Lennart Bang, Bodo Moeller]
6694 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6695 removing all other RSA functionality (this is what NO_RSA does). This
6696 is so (for example) those in the US can disable those operations covered
6697 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6701 *) Non-copying interface to BIO pairs.
6702 (still largely untested)
6705 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6706 ASCII string. This was handled independently in various places before.
6709 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6710 UTF8 strings a character at a time.
6713 *) Use client_version from client hello to select the protocol
6714 (s23_srvr.c) and for RSA client key exchange verification
6715 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6718 *) Add various utility functions to handle SPKACs, these were previously
6719 handled by poking round in the structure internals. Added new function
6720 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6721 print, verify and generate SPKACs. Based on an original idea from
6722 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6725 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6728 *) Allow the config file extension section to be overwritten on the
6729 command line. Based on an original idea from Massimiliano Pala
6730 <madwolf@comune.modena.it>. The new option is called -extensions
6731 and can be applied to ca, req and x509. Also -reqexts to override
6732 the request extensions in req and -crlexts to override the crl extensions
6736 *) Add new feature to the SPKAC handling in ca. Now you can include
6737 the same field multiple times by preceding it by "XXXX." for example:
6740 this is the same syntax as used in the req config file.
6743 *) Allow certificate extensions to be added to certificate requests. These
6744 are specified in a 'req_extensions' option of the req section of the
6745 config file. They can be printed out with the -text option to req but
6746 are otherwise ignored at present.
6749 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6750 data read consists of only the final block it would not decrypted because
6751 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6752 A misplaced 'break' also meant the decrypted final block might not be
6753 copied until the next read.
6756 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6757 a few extra parameters to the DH structure: these will be useful if
6758 for example we want the value of 'q' or implement X9.42 DH.
6761 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6762 provides hooks that allow the default DSA functions or functions on a
6763 "per key" basis to be replaced. This allows hardware acceleration and
6764 hardware key storage to be handled without major modification to the
6765 library. Also added low level modexp hooks and CRYPTO_EX structure and
6766 associated functions.
6769 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6770 as "read only": it can't be written to and the buffer it points to will
6771 not be freed. Reading from a read only BIO is much more efficient than
6772 a normal memory BIO. This was added because there are several times when
6773 an area of memory needs to be read from a BIO. The previous method was
6774 to create a memory BIO and write the data to it, this results in two
6775 copies of the data and an O(n^2) reading algorithm. There is a new
6776 function BIO_new_mem_buf() which creates a read only memory BIO from
6777 an area of memory. Also modified the PKCS#7 routines to use read only
6781 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6782 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6783 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6784 but a retry condition occured while trying to read the rest.
6787 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6788 NID_pkcs7_encrypted by default: this was wrong since this should almost
6789 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6790 the encrypted data type: this is a more sensible place to put it and it
6791 allows the PKCS#12 code to be tidied up that duplicated this
6795 *) Changed obj_dat.pl script so it takes its input and output files on
6796 the command line. This should avoid shell escape redirection problems
6800 *) Initial support for certificate extension requests, these are included
6801 in things like Xenroll certificate requests. Included functions to allow
6802 extensions to be obtained and added.
6805 *) -crlf option to s_client and s_server for sending newlines as
6806 CRLF (as required by many protocols).
6809 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6811 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6812 [Ralf S. Engelschall]
6814 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6815 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6817 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6821 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6822 DH parameters/keys (q is lost during that conversion, but the resulting
6823 DH parameters contain its length).
6825 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6826 much faster than DH_generate_parameters (which creates parameters
6827 where p = 2*q + 1), and also the smaller q makes DH computations
6828 much more efficient (160-bit exponentiation instead of 1024-bit
6829 exponentiation); so this provides a convenient way to support DHE
6830 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6831 utter importance to use
6832 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6834 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6835 when such DH parameters are used, because otherwise small subgroup
6836 attacks may become possible!
6839 *) Avoid memory leak in i2d_DHparams.
6842 *) Allow the -k option to be used more than once in the enc program:
6843 this allows the same encrypted message to be read by multiple recipients.
6846 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6847 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6848 it will always use the numerical form of the OID, even if it has a short
6852 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6853 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6854 otherwise bn_mod_exp was called. In the case of hardware keys for example
6855 no private key components need be present and it might store extra data
6856 in the RSA structure, which cannot be accessed from bn_mod_exp.
6857 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6858 private key operations.
6861 *) Added support for SPARC Linux.
6864 *) pem_password_cb function type incompatibly changed from
6865 typedef int pem_password_cb(char *buf, int size, int rwflag);
6867 ....(char *buf, int size, int rwflag, void *userdata);
6868 so that applications can pass data to their callbacks:
6869 The PEM[_ASN1]_{read,write}... functions and macros now take an
6870 additional void * argument, which is just handed through whenever
6871 the password callback is called.
6872 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6874 New function SSL_CTX_set_default_passwd_cb_userdata.
6876 Compatibility note: As many C implementations push function arguments
6877 onto the stack in reverse order, the new library version is likely to
6878 interoperate with programs that have been compiled with the old
6879 pem_password_cb definition (PEM_whatever takes some data that
6880 happens to be on the stack as its last argument, and the callback
6881 just ignores this garbage); but there is no guarantee whatsoever that
6884 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6885 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6886 problems not only on Windows, but also on some Unix platforms.
6887 To avoid problematic command lines, these definitions are now in an
6888 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6889 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6892 *) MIPS III/IV assembler module is reimplemented.
6895 *) More DES library cleanups: remove references to srand/rand and
6896 delete an unused file.
6899 *) Add support for the the free Netwide assembler (NASM) under Win32,
6900 since not many people have MASM (ml) and it can be hard to obtain.
6901 This is currently experimental but it seems to work OK and pass all
6902 the tests. Check out INSTALL.W32 for info.
6905 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6906 without temporary keys kept an extra copy of the server key,
6907 and connections with temporary keys did not free everything in case
6911 *) New function RSA_check_key and new openssl rsa option -check
6912 for verifying the consistency of RSA keys.
6913 [Ulf Moeller, Bodo Moeller]
6915 *) Various changes to make Win32 compile work:
6916 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6917 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6918 comparison" warnings.
6919 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6922 *) Add a debugging option to PKCS#5 v2 key generation function: when
6923 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6924 derived keys are printed to stderr.
6927 *) Copy the flags in ASN1_STRING_dup().
6928 [Roman E. Pavlov <pre@mo.msk.ru>]
6930 *) The x509 application mishandled signing requests containing DSA
6931 keys when the signing key was also DSA and the parameters didn't match.
6933 It was supposed to omit the parameters when they matched the signing key:
6934 the verifying software was then supposed to automatically use the CA's
6935 parameters if they were absent from the end user certificate.
6937 Omitting parameters is no longer recommended. The test was also
6938 the wrong way round! This was probably due to unusual behaviour in
6939 EVP_cmp_parameters() which returns 1 if the parameters match.
6940 This meant that parameters were omitted when they *didn't* match and
6941 the certificate was useless. Certificates signed with 'ca' didn't have
6943 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6945 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6946 The interface is as follows:
6947 Applications can use
6948 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6949 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6950 "off" is now the default.
6951 The library internally uses
6952 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6953 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6954 to disable memory-checking temporarily.
6956 Some inconsistent states that previously were possible (and were
6957 even the default) are now avoided.
6959 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6960 with each memory chunk allocated; this is occasionally more helpful
6961 than just having a counter.
6963 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6965 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6969 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6970 which largely parallels "options", but is for changing API behaviour,
6971 whereas "options" are about protocol behaviour.
6972 Initial "mode" flags are:
6974 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6975 a single record has been written.
6976 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6977 retries use the same buffer location.
6978 (But all of the contents must be
6982 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6985 *) Fix problems with no-hmac etc.
6986 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6988 *) New functions RSA_get_default_method(), RSA_set_method() and
6989 RSA_get_method(). These allows replacement of RSA_METHODs without having
6990 to mess around with the internals of an RSA structure.
6993 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6994 Also really enable memory leak checks in openssl.c and in some
6996 [Chad C. Mulligan, Bodo Moeller]
6998 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6999 up the length of negative integers. This has now been simplified to just
7000 store the length when it is first determined and use it later, rather
7001 than trying to keep track of where data is copied and updating it to
7003 [Steve Henson, reported by Brien Wheeler
7004 <bwheeler@authentica-security.com>]
7006 *) Add a new function PKCS7_signatureVerify. This allows the verification
7007 of a PKCS#7 signature but with the signing certificate passed to the
7008 function itself. This contrasts with PKCS7_dataVerify which assumes the
7009 certificate is present in the PKCS#7 structure. This isn't always the
7010 case: certificates can be omitted from a PKCS#7 structure and be
7011 distributed by "out of band" means (such as a certificate database).
7014 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7015 function prototypes in pem.h, also change util/mkdef.pl to add the
7016 necessary function names.
7019 *) mk1mf.pl (used by Windows builds) did not properly read the
7020 options set by Configure in the top level Makefile, and Configure
7021 was not even able to write more than one option correctly.
7022 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7025 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7026 file to be loaded from a BIO or FILE pointer. The BIO version will
7027 for example allow memory BIOs to contain config info.
7030 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7031 Whoever hopes to achieve shared-library compatibility across versions
7032 must use this, not the compile-time macro.
7033 (Exercise 0.9.4: Which is the minimum library version required by
7035 Note: All this applies only to multi-threaded programs, others don't
7039 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7040 through a BIO pair triggered the default case, i.e.
7041 SSLerr(...,SSL_R_UNKNOWN_STATE).
7044 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7045 can use the SSL library even if none of the specific BIOs is
7049 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7050 for the encoded length.
7051 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7053 *) Add initial documentation of the X509V3 functions.
7056 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7057 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7058 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7059 secure PKCS#8 private key format with a high iteration count.
7062 *) Fix determination of Perl interpreter: A perl or perl5
7063 _directory_ in $PATH was also accepted as the interpreter.
7064 [Ralf S. Engelschall]
7066 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7067 wrong with it but it was very old and did things like calling
7068 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7072 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7073 to use the new extension code.
7076 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7077 with macros. This should make it easier to change their form, add extra
7078 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7082 *) Add to configuration table a new entry that can specify an alternative
7083 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7084 according to Mark Crispin <MRC@Panda.COM>.
7088 *) DES CBC did not update the IV. Weird.
7091 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7092 Changing the behaviour of the former might break existing programs --
7093 where IV updating is needed, des_ncbc_encrypt can be used.
7096 *) When bntest is run from "make test" it drives bc to check its
7097 calculations, as well as internally checking them. If an internal check
7098 fails, it needs to cause bc to give a non-zero result or make test carries
7099 on without noticing the failure. Fixed.
7102 *) DES library cleanups.
7105 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7106 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7107 ciphers. NOTE: although the key derivation function has been verified
7108 against some published test vectors it has not been extensively tested
7109 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7113 *) Instead of "mkdir -p", which is not fully portable, use new
7114 Perl script "util/mkdir-p.pl".
7117 *) Rewrite the way password based encryption (PBE) is handled. It used to
7118 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7119 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7120 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7121 the 'parameter' field of the AlgorithmIdentifier is passed to the
7122 underlying key generation function so it must do its own ASN1 parsing.
7123 This has also changed the EVP_PBE_CipherInit() function which now has a
7124 'parameter' argument instead of literal salt and iteration count values
7125 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7128 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7129 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7130 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7131 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7132 value was just used as a "magic string" and not used directly its
7133 value doesn't matter.
7136 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7140 *) "linux-sparc64" configuration (ultrapenguin).
7141 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7142 "linux-sparc" configuration.
7143 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7145 *) config now generates no-xxx options for missing ciphers.
7148 *) Support the EBCDIC character set (work in progress).
7149 File ebcdic.c not yet included because it has a different license.
7150 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7152 *) Support BS2000/OSD-POSIX.
7153 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7155 *) Make callbacks for key generation use void * instead of char *.
7158 *) Make S/MIME samples compile (not yet tested).
7161 *) Additional typesafe stacks.
7164 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7168 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7170 *) New configuration variant "sco5-gcc".
7172 *) Updated some demos.
7173 [Sean O Riordain, Wade Scholine]
7175 *) Add missing BIO_free at exit of pkcs12 application.
7178 *) Fix memory leak in conf.c.
7181 *) Updates for Win32 to assembler version of MD5.
7184 *) Set #! path to perl in apps/der_chop to where we found it
7185 instead of using a fixed path.
7188 *) SHA library changes for irix64-mips4-cc.
7191 *) Improvements for VMS support.
7195 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7197 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7198 This also avoids the problems with SC4.2 and unpatched SC5.
7199 [Andy Polyakov <appro@fy.chalmers.se>]
7201 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7202 These are required because of the typesafe stack would otherwise break
7203 existing code. If old code used a structure member which used to be STACK
7204 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7205 sk_num or sk_value it would produce an error because the num, data members
7206 are not present in STACK_OF. Now it just produces a warning. sk_set
7207 replaces the old method of assigning a value to sk_value
7208 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7209 that does this will no longer work (and should use sk_set instead) but
7210 this could be regarded as a "questionable" behaviour anyway.
7213 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7214 correctly handle encrypted S/MIME data.
7217 *) Change type of various DES function arguments from des_cblock
7218 (which means, in function argument declarations, pointer to char)
7219 to des_cblock * (meaning pointer to array with 8 char elements),
7220 which allows the compiler to do more typechecking; it was like
7221 that back in SSLeay, but with lots of ugly casts.
7223 Introduce new type const_des_cblock.
7226 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7227 problems: find RecipientInfo structure that matches recipient certificate
7228 and initialise the ASN1 structures properly based on passed cipher.
7231 *) Belatedly make the BN tests actually check the results.
7234 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7235 to and from BNs: it was completely broken. New compilation option
7236 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7237 key elements as negative integers.
7240 *) Reorganize and speed up MD5.
7241 [Andy Polyakov <appro@fy.chalmers.se>]
7244 [Richard Levitte <richard@levitte.org>]
7246 *) New option -out to asn1parse to allow the parsed structure to be
7247 output to a file. This is most useful when combined with the -strparse
7248 option to examine the output of things like OCTET STRINGS.
7251 *) Make SSL library a little more fool-proof by not requiring any longer
7252 that SSL_set_{accept,connect}_state be called before
7253 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7254 in many applications because usually everything *appeared* to work as
7255 intended anyway -- now it really works as intended).
7258 *) Move openssl.cnf out of lib/.
7261 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7262 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7263 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7264 [Ralf S. Engelschall]
7266 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7267 handle PKCS#7 enveloped data properly.
7268 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7270 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7271 copying pointers. The cert_st handling is changed by this in
7272 various ways (and thus what used to be known as ctx->default_cert
7273 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7274 any longer when s->cert does not give us what we need).
7275 ssl_cert_instantiate becomes obsolete by this change.
7276 As soon as we've got the new code right (possibly it already is?),
7277 we have solved a couple of bugs of the earlier code where s->cert
7278 was used as if it could not have been shared with other SSL structures.
7280 Note that using the SSL API in certain dirty ways now will result
7281 in different behaviour than observed with earlier library versions:
7282 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7283 does not influence s as it used to.
7285 In order to clean up things more thoroughly, inside SSL_SESSION
7286 we don't use CERT any longer, but a new structure SESS_CERT
7287 that holds per-session data (if available); currently, this is
7288 the peer's certificate chain and, for clients, the server's certificate
7289 and temporary key. CERT holds only those values that can have
7290 meaningful defaults in an SSL_CTX.
7293 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7294 from the internal representation. Various PKCS#7 fixes: remove some
7295 evil casts and set the enc_dig_alg field properly based on the signing
7299 *) Allow PKCS#12 password to be set from the command line or the
7300 environment. Let 'ca' get its config file name from the environment
7301 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7305 *) Allow certificate policies extension to use an IA5STRING for the
7306 organization field. This is contrary to the PKIX definition but
7307 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7311 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7312 without disallowing inline assembler and the like for non-pedantic builds.
7315 *) Support Borland C++ builder.
7316 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7321 *) SHA-1 cleanups and performance enhancements.
7322 [Andy Polyakov <appro@fy.chalmers.se>]
7324 *) Sparc v8plus assembler for the bignum library.
7325 [Andy Polyakov <appro@fy.chalmers.se>]
7327 *) Accept any -xxx and +xxx compiler options in Configure.
7330 *) Update HPUX configuration.
7333 *) Add missing sk_<type>_unshift() function to safestack.h
7334 [Ralf S. Engelschall]
7336 *) New function SSL_CTX_use_certificate_chain_file that sets the
7337 "extra_cert"s in addition to the certificate. (This makes sense
7338 only for "PEM" format files, as chains as a whole are not
7342 *) Support verify_depth from the SSL API.
7343 x509_vfy.c had what can be considered an off-by-one-error:
7344 Its depth (which was not part of the external interface)
7345 was actually counting the number of certificates in a chain;
7346 now it really counts the depth.
7349 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7350 instead of X509err, which often resulted in confusing error
7351 messages since the error codes are not globally unique
7352 (e.g. an alleged error in ssl3_accept when a certificate
7353 didn't match the private key).
7355 *) New function SSL_CTX_set_session_id_context that allows to set a default
7356 value (so that you don't need SSL_set_session_id_context for each
7357 connection using the SSL_CTX).
7360 *) OAEP decoding bug fix.
7363 *) Support INSTALL_PREFIX for package builders, as proposed by
7367 *) New Configure options "threads" and "no-threads". For systems
7368 where the proper compiler options are known (currently Solaris
7369 and Linux), "threads" is the default.
7372 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7375 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7376 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7377 such as /usr/local/bin.
7380 *) "make linux-shared" to build shared libraries.
7381 [Niels Poppe <niels@netbox.org>]
7383 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7386 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7387 extension adding in x509 utility.
7390 *) Remove NOPROTO sections and error code comments.
7393 *) Partial rewrite of the DEF file generator to now parse the ANSI
7397 *) New Configure options --prefix=DIR and --openssldir=DIR.
7400 *) Complete rewrite of the error code script(s). It is all now handled
7401 by one script at the top level which handles error code gathering,
7402 header rewriting and C source file generation. It should be much better
7403 than the old method: it now uses a modified version of Ulf's parser to
7404 read the ANSI prototypes in all header files (thus the old K&R definitions
7405 aren't needed for error creation any more) and do a better job of
7406 translating function codes into names. The old 'ASN1 error code imbedded
7407 in a comment' is no longer necessary and it doesn't use .err files which
7408 have now been deleted. Also the error code call doesn't have to appear all
7409 on one line (which resulted in some large lines...).
7412 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7415 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7416 0 (which usually indicates a closed connection), but continue reading.
7419 *) Fix some race conditions.
7422 *) Add support for CRL distribution points extension. Add Certificate
7423 Policies and CRL distribution points documentation.
7426 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7429 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7430 8 of keying material. Merlin has also confirmed interop with this fix
7431 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7432 [Merlin Hughes <merlin@baltimore.ie>]
7434 *) Fix lots of warnings.
7435 [Richard Levitte <levitte@stacken.kth.se>]
7437 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7438 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7439 [Richard Levitte <levitte@stacken.kth.se>]
7441 *) Fix problems with sizeof(long) == 8.
7442 [Andy Polyakov <appro@fy.chalmers.se>]
7444 *) Change functions to ANSI C.
7447 *) Fix typos in error codes.
7448 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7450 *) Remove defunct assembler files from Configure.
7453 *) SPARC v8 assembler BIGNUM implementation.
7454 [Andy Polyakov <appro@fy.chalmers.se>]
7456 *) Support for Certificate Policies extension: both print and set.
7457 Various additions to support the r2i method this uses.
7460 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7461 return a const string when you are expecting an allocated buffer.
7464 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7465 types DirectoryString and DisplayText.
7468 *) Add code to allow r2i extensions to access the configuration database,
7469 add an LHASH database driver and add several ctx helper functions.
7472 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7473 fail when they extended the size of a BIGNUM.
7476 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7477 support typesafe stack.
7480 *) Fix typo in SSL_[gs]et_options().
7481 [Nils Frostberg <nils@medcom.se>]
7483 *) Delete various functions and files that belonged to the (now obsolete)
7484 old X509V3 handling code.
7487 *) New Configure option "rsaref".
7490 *) Don't auto-generate pem.h.
7493 *) Introduce type-safe ASN.1 SETs.
7496 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7497 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7499 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7500 that links with OpenSSL (well at least cause lots of warnings), but fear
7501 not: the conversion is trivial, and it eliminates loads of evil casts. A
7502 few STACKed things have been converted already. Feel free to convert more.
7503 In the fullness of time, I'll do away with the STACK type altogether.
7506 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7507 specified in <certfile> by updating the entry in the index.txt file.
7508 This way one no longer has to edit the index.txt file manually for
7509 revoking a certificate. The -revoke option does the gory details now.
7510 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7512 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7513 `-text' option at all and this way the `-noout -text' combination was
7514 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7515 [Ralf S. Engelschall]
7517 *) Make sure a corresponding plain text error message exists for the
7518 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7519 verify callback function determined that a certificate was revoked.
7520 [Ralf S. Engelschall]
7522 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7523 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7524 all available cipers including rc5, which was forgotten until now.
7525 In order to let the testing shell script know which algorithms
7526 are available, a new (up to now undocumented) command
7527 "openssl list-cipher-commands" is used.
7530 *) Bugfix: s_client occasionally would sleep in select() when
7531 it should have checked SSL_pending() first.
7534 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7535 the raw DSA values prior to ASN.1 encoding.
7538 *) Tweaks to Configure
7539 [Niels Poppe <niels@netbox.org>]
7541 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7545 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7548 *) New config option to avoid instructions that are illegal on the 80386.
7549 The default code is faster, but requires at least a 486.
7552 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7553 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7554 same as SSL2_VERSION anyway.
7557 *) New "-showcerts" option for s_client.
7560 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7561 application. Various cleanups and fixes.
7564 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7565 modify error routines to work internally. Add error codes and PBE init
7566 to library startup routines.
7569 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7570 packing functions to asn1 and evp. Changed function names and error
7571 codes along the way.
7574 *) PKCS12 integration: and so it begins... First of several patches to
7575 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7576 objects to objects.h
7579 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7580 and display support for Thawte strong extranet extension.
7583 *) Add LinuxPPC support.
7584 [Jeff Dubrule <igor@pobox.org>]
7586 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7587 bn_div_words in alpha.s.
7588 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7590 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7591 OAEP isn't supported when OpenSSL is built with RSAref.
7592 [Ulf Moeller <ulf@fitug.de>]
7594 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7595 so they no longer are missing under -DNOPROTO.
7596 [Soren S. Jorvang <soren@t.dk>]
7599 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7601 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7602 doesn't work when the session is reused. Coming soon!
7605 *) Fix a security hole, that allows sessions to be reused in the wrong
7606 context thus bypassing client cert protection! All software that uses
7607 client certs and session caches in multiple contexts NEEDS PATCHING to
7608 allow session reuse! A fuller solution is in the works.
7609 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7611 *) Some more source tree cleanups (removed obsolete files
7612 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7613 permission on "config" script to be executable) and a fix for the INSTALL
7615 [Ulf Moeller <ulf@fitug.de>]
7617 *) Remove some legacy and erroneous uses of malloc, free instead of
7619 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7621 *) Make rsa_oaep_test return non-zero on error.
7622 [Ulf Moeller <ulf@fitug.de>]
7624 *) Add support for native Solaris shared libraries. Configure
7625 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7626 if someone would make that last step automatic.
7627 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7629 *) ctx_size was not built with the right compiler during "make links". Fixed.
7632 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7633 except NULL ciphers". This means the default cipher list will no longer
7634 enable NULL ciphers. They need to be specifically enabled e.g. with
7635 the string "DEFAULT:eNULL".
7638 *) Fix to RSA private encryption routines: if p < q then it would
7639 occasionally produce an invalid result. This will only happen with
7640 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7643 *) Be less restrictive and allow also `perl util/perlpath.pl
7644 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7645 because this way one can also use an interpreter named `perl5' (which is
7646 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7647 installed as `perl').
7648 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7650 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7651 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7653 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7654 advapi32.lib to Win32 build and change the pem test comparision
7655 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7656 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7657 and crypto/des/ede_cbcm_enc.c.
7660 *) DES quad checksum was broken on big-endian architectures. Fixed.
7663 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7664 Win32 test batch file so it (might) work again. The Win32 test batch file
7665 is horrible: I feel ill....
7668 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7669 in e_os.h. Audit of header files to check ANSI and non ANSI
7670 sections: 10 functions were absent from non ANSI section and not exported
7671 from Windows DLLs. Fixed up libeay.num for new functions.
7674 *) Make `openssl version' output lines consistent.
7675 [Ralf S. Engelschall]
7677 *) Fix Win32 symbol export lists for BIO functions: Added
7678 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7679 to ms/libeay{16,32}.def.
7680 [Ralf S. Engelschall]
7682 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7683 fine under Unix and passes some trivial tests I've now added. But the
7684 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7685 added to make sure no one expects that this stuff really works in the
7686 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7687 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7689 [Ralf S. Engelschall]
7691 *) Fix the generation of two part addresses in perl.
7692 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7694 *) Add config entry for Linux on MIPS.
7695 [John Tobey <jtobey@channel1.com>]
7697 *) Make links whenever Configure is run, unless we are on Windoze.
7700 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7701 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7705 *) Add a useful kludge to allow package maintainers to specify compiler and
7706 other platforms details on the command line without having to patch the
7707 Configure script everytime: One now can use ``perl Configure
7708 <id>:<details>'', i.e. platform ids are allowed to have details appended
7709 to them (seperated by colons). This is treated as there would be a static
7710 pre-configured entry in Configure's %table under key <id> with value
7711 <details> and ``perl Configure <id>'' is called. So, when you want to
7712 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7713 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7714 now, which overrides the FreeBSD-elf entry on-the-fly.
7715 [Ralf S. Engelschall]
7717 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7720 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7721 on the `perl Configure ...' command line. This way one can compile
7722 OpenSSL libraries with Position Independent Code (PIC) which is needed
7723 for linking it into DSOs.
7724 [Ralf S. Engelschall]
7726 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7730 *) Cleaned up the LICENSE document: The official contact for any license
7731 questions now is the OpenSSL core team under openssl-core@openssl.org.
7732 And add a paragraph about the dual-license situation to make sure people
7733 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7734 to the OpenSSL toolkit.
7735 [Ralf S. Engelschall]
7737 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7738 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7739 Additonally cleaned up the `make links' target: Remove unnecessary
7740 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7741 to speed processing and no longer clutter the display with confusing
7742 stuff. Instead only the actually done links are displayed.
7743 [Ralf S. Engelschall]
7745 *) Permit null encryption ciphersuites, used for authentication only. It used
7746 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7747 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7751 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7752 signed attributes when verifying signatures (this would break them),
7753 the detached data encoding was wrong and public keys obtained using
7754 X509_get_pubkey() weren't freed.
7757 *) Add text documentation for the BUFFER functions. Also added a work around
7758 to a Win95 console bug. This was triggered by the password read stuff: the
7759 last character typed gets carried over to the next fread(). If you were
7760 generating a new cert request using 'req' for example then the last
7761 character of the passphrase would be CR which would then enter the first
7765 *) Added the new `Includes OpenSSL Cryptography Software' button as
7766 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7767 button and can be used by applications based on OpenSSL to show the
7768 relationship to the OpenSSL project.
7769 [Ralf S. Engelschall]
7771 *) Remove confusing variables in function signatures in files
7772 ssl/ssl_lib.c and ssl/ssl.h.
7773 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7775 *) Don't install bss_file.c under PREFIX/include/
7776 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7778 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7779 functions that return function pointers and has support for NT specific
7780 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7781 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7782 unsigned to signed types: this was killing the Win32 compile.
7785 *) Add new certificate file to stack functions,
7786 SSL_add_dir_cert_subjects_to_stack() and
7787 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7788 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7789 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7790 This means that Apache-SSL and similar packages don't have to mess around
7791 to add as many CAs as they want to the preferred list.
7794 *) Experiment with doxygen documentation. Currently only partially applied to
7796 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7797 openssl.doxy as the configuration file.
7800 *) Get rid of remaining C++-style comments which strict C compilers hate.
7801 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7803 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7804 compiled in by default: it has problems with large keys.
7807 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7808 DH private keys and/or callback functions which directly correspond to
7809 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7810 is needed for applications which have to configure certificates on a
7811 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7813 For the RSA certificate situation is makes no difference, but
7814 for the DSA certificate situation this fixes the "no shared cipher"
7815 problem where the OpenSSL cipher selection procedure failed because the
7816 temporary keys were not overtaken from the context and the API provided
7817 no way to reconfigure them.
7818 The new functions now let applications reconfigure the stuff and they
7819 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7820 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7821 non-public-API function ssl_cert_instantiate() is used as a helper
7822 function and also to reduce code redundancy inside ssl_rsa.c.
7823 [Ralf S. Engelschall]
7825 *) Move s_server -dcert and -dkey options out of the undocumented feature
7826 area because they are useful for the DSA situation and should be
7827 recognized by the users.
7828 [Ralf S. Engelschall]
7830 *) Fix the cipher decision scheme for export ciphers: the export bits are
7831 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7832 SSL_EXP_MASK. So, the original variable has to be used instead of the
7833 already masked variable.
7834 [Richard Levitte <levitte@stacken.kth.se>]
7836 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7837 [Richard Levitte <levitte@stacken.kth.se>]
7839 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7840 from `int' to `unsigned int' because it's a length and initialized by
7841 EVP_DigestFinal() which expects an `unsigned int *'.
7842 [Richard Levitte <levitte@stacken.kth.se>]
7844 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7845 script. Instead use the usual Shell->Perl transition trick.
7846 [Ralf S. Engelschall]
7848 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7849 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7850 -noout -modulus' as it's already the case for `openssl rsa -noout
7851 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7852 currently the public key is printed (a decision which was already done by
7853 `openssl dsa -modulus' in the past) which serves a similar purpose.
7854 Additionally the NO_RSA no longer completely removes the whole -modulus
7855 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7857 [Ralf S. Engelschall]
7859 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7860 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7861 [Arne Ansper <arne@ats.cyber.ee>]
7863 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7864 to be added. Now both 'req' and 'ca' can use new objects defined in the
7868 *) Add cool BIO that does syslog (or event log on NT).
7869 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7871 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7872 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7873 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7874 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7877 *) Add preliminary config info for new extension code.
7880 *) Make RSA_NO_PADDING really use no padding.
7881 [Ulf Moeller <ulf@fitug.de>]
7883 *) Generate errors when private/public key check is done.
7886 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7887 for some CRL extensions and new objects added.
7890 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7891 key usage extension and fuller support for authority key id.
7894 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7895 padding method for RSA, which is recommended for new applications in PKCS
7896 #1 v2.0 (RFC 2437, October 1998).
7897 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7898 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7899 against Bleichbacher's attack on RSA.
7900 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7903 *) Updates to the new SSL compression code
7904 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7906 *) Fix so that the version number in the master secret, when passed
7907 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7908 (because the server will not accept higher), that the version number
7909 is 0x03,0x01, not 0x03,0x00
7910 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7912 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7913 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7914 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7917 *) Support for RAW extensions where an arbitrary extension can be
7918 created by including its DER encoding. See apps/openssl.cnf for
7922 *) Make sure latest Perl versions don't interpret some generated C array
7923 code as Perl array code in the crypto/err/err_genc.pl script.
7924 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7926 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7927 not many people have the assembler. Various Win32 compilation fixes and
7928 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7932 *) Modify configure script 'Configure' to automatically create crypto/date.h
7933 file under Win32 and also build pem.h from pem.org. New script
7934 util/mkfiles.pl to create the MINFO file on environments that can't do a
7935 'make files': perl util/mkfiles.pl >MINFO should work.
7938 *) Major rework of DES function declarations, in the pursuit of correctness
7939 and purity. As a result, many evil casts evaporated, and some weirdness,
7940 too. You may find this causes warnings in your code. Zapping your evil
7941 casts will probably fix them. Mostly.
7944 *) Fix for a typo in asn1.h. Bug fix to object creation script
7945 obj_dat.pl. It considered a zero in an object definition to mean
7946 "end of object": none of the objects in objects.h have any zeros
7947 so it wasn't spotted.
7948 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7950 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7951 Masking (CBCM). In the absence of test vectors, the best I have been able
7952 to do is check that the decrypt undoes the encrypt, so far. Send me test
7953 vectors if you have them.
7956 *) Correct calculation of key length for export ciphers (too much space was
7957 allocated for null ciphers). This has not been tested!
7960 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7961 message is now correct (it understands "crypto" and "ssl" on its
7962 command line). There is also now an "update" option. This will update
7963 the util/ssleay.num and util/libeay.num files with any new functions.
7965 perl util/mkdef.pl crypto ssl update
7966 it will update them.
7969 *) Overhauled the Perl interface (perl/*):
7970 - ported BN stuff to OpenSSL's different BN library
7971 - made the perl/ source tree CVS-aware
7972 - renamed the package from SSLeay to OpenSSL (the files still contain
7973 their history because I've copied them in the repository)
7974 - removed obsolete files (the test scripts will be replaced
7975 by better Test::Harness variants in the future)
7976 [Ralf S. Engelschall]
7978 *) First cut for a very conservative source tree cleanup:
7979 1. merge various obsolete readme texts into doc/ssleay.txt
7980 where we collect the old documents and readme texts.
7981 2. remove the first part of files where I'm already sure that we no
7982 longer need them because of three reasons: either they are just temporary
7983 files which were left by Eric or they are preserved original files where
7984 I've verified that the diff is also available in the CVS via "cvs diff
7985 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7986 the crypto/md/ stuff).
7987 [Ralf S. Engelschall]
7989 *) More extension code. Incomplete support for subject and issuer alt
7990 name, issuer and authority key id. Change the i2v function parameters
7991 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7992 what that's for :-) Fix to ASN1 macro which messed up
7993 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7996 *) Preliminary support for ENUMERATED type. This is largely copied from the
8000 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8001 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8003 *) Make sure `make rehash' target really finds the `openssl' program.
8004 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8006 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8007 like to hear about it if this slows down other processors.
8010 *) Add CygWin32 platform information to Configure script.
8011 [Alan Batie <batie@aahz.jf.intel.com>]
8013 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8014 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8016 *) New program nseq to manipulate netscape certificate sequences
8019 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8023 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8024 but the BN code had some problems that would cause failures when
8025 doing certificate verification and some other functions.
8026 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8028 *) Add ASN1 and PEM code to support netscape certificate sequences.
8031 *) Add ASN1 and PEM code to support netscape certificate sequences.
8034 *) Add several PKIX and private extended key usage OIDs.
8037 *) Modify the 'ca' program to handle the new extension code. Modify
8038 openssl.cnf for new extension format, add comments.
8041 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8042 and add a sample to openssl.cnf so req -x509 now adds appropriate
8046 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8047 error code, add initial support to X509_print() and x509 application.
8050 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8051 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8052 stuff is currently isolated and isn't even compiled yet.
8055 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8056 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8057 Removed the versions check from X509 routines when loading extensions:
8058 this allows certain broken certificates that don't set the version
8059 properly to be processed.
8062 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8063 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8064 can still be regenerated with "make depend".
8067 *) Spelling mistake in C version of CAST-128.
8068 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8070 *) Changes to the error generation code. The perl script err-code.pl
8071 now reads in the old error codes and retains the old numbers, only
8072 adding new ones if necessary. It also only changes the .err files if new
8073 codes are added. The makefiles have been modified to only insert errors
8074 when needed (to avoid needlessly modifying header files). This is done
8075 by only inserting errors if the .err file is newer than the auto generated
8076 C file. To rebuild all the error codes from scratch (the old behaviour)
8077 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8078 or delete all the .err files.
8081 *) CAST-128 was incorrectly implemented for short keys. The C version has
8082 been fixed, but is untested. The assembler versions are also fixed, but
8083 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8084 to regenerate it if needed.
8085 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8086 Hagino <itojun@kame.net>]
8088 *) File was opened incorrectly in randfile.c.
8089 [Ulf Möller <ulf@fitug.de>]
8091 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8092 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8093 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8094 al: it's just almost always a UTCTime. Note this patch adds new error
8095 codes so do a "make errors" if there are problems.
8098 *) Correct Linux 1 recognition in config.
8099 [Ulf Möller <ulf@fitug.de>]
8101 *) Remove pointless MD5 hash when using DSA keys in ca.
8102 [Anonymous <nobody@replay.com>]
8104 *) Generate an error if given an empty string as a cert directory. Also
8105 generate an error if handed NULL (previously returned 0 to indicate an
8106 error, but didn't set one).
8107 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8109 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8112 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8113 parameters. This was causing a warning which killed off the Win32 compile.
8116 *) Remove C++ style comments from crypto/bn/bn_local.h.
8117 [Neil Costigan <neil.costigan@celocom.com>]
8119 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8120 based on a text string, looking up short and long names and finally
8121 "dot" format. The "dot" format stuff didn't work. Added new function
8122 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8123 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8124 OID is not part of the table.
8127 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8128 X509_LOOKUP_by_alias().
8131 *) Sort openssl functions by name.
8134 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8135 encryption from sample DSA keys (in case anyone is interested the password
8139 *) Make _all_ *_free functions accept a NULL pointer.
8140 [Frans Heymans <fheymans@isaserver.be>]
8142 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8144 [Anonymous <nobody@replay.com>]
8146 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8147 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8149 *) Don't blow it for numeric -newkey arguments to apps/req.
8150 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8152 *) Temp key "for export" tests were wrong in s3_srvr.c.
8153 [Anonymous <nobody@replay.com>]
8155 *) Add prototype for temp key callback functions
8156 SSL_CTX_set_tmp_{rsa,dh}_callback().
8159 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8160 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8163 *) X509_name_add_entry() freed the wrong thing after an error.
8164 [Arne Ansper <arne@ats.cyber.ee>]
8166 *) rsa_eay.c would attempt to free a NULL context.
8167 [Arne Ansper <arne@ats.cyber.ee>]
8169 *) BIO_s_socket() had a broken should_retry() on Windoze.
8170 [Arne Ansper <arne@ats.cyber.ee>]
8172 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8173 [Arne Ansper <arne@ats.cyber.ee>]
8175 *) Make sure the already existing X509_STORE->depth variable is initialized
8176 in X509_STORE_new(), but document the fact that this variable is still
8177 unused in the certificate verification process.
8178 [Ralf S. Engelschall]
8180 *) Fix the various library and apps files to free up pkeys obtained from
8181 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8184 *) Fix reference counting in X509_PUBKEY_get(). This makes
8185 demos/maurice/example2.c work, amongst others, probably.
8186 [Steve Henson and Ben Laurie]
8188 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8189 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8190 are no longer created. This way we have a single and consistent command
8191 line interface `openssl <command>', similar to `cvs <command>'.
8192 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8194 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8195 BIT STRING wrapper always have zero unused bits.
8198 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8201 *) Make the top-level INSTALL documentation easier to understand.
8204 *) Makefiles updated to exit if an error occurs in a sub-directory
8205 make (including if user presses ^C) [Paul Sutton]
8207 *) Make Montgomery context stuff explicit in RSA data structure.
8210 *) Fix build order of pem and err to allow for generated pem.h.
8213 *) Fix renumbering bug in X509_NAME_delete_entry().
8216 *) Enhanced the err-ins.pl script so it makes the error library number
8217 global and can add a library name. This is needed for external ASN1 and
8218 other error libraries.
8221 *) Fixed sk_insert which never worked properly.
8224 *) Fix ASN1 macros so they can handle indefinite length construted
8225 EXPLICIT tags. Some non standard certificates use these: they can now
8229 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8230 into a single doc/ssleay.txt bundle. This way the information is still
8231 preserved but no longer messes up this directory. Now it's new room for
8232 the new set of documenation files.
8233 [Ralf S. Engelschall]
8235 *) SETs were incorrectly DER encoded. This was a major pain, because they
8236 shared code with SEQUENCEs, which aren't coded the same. This means that
8237 almost everything to do with SETs or SEQUENCEs has either changed name or
8238 number of arguments.
8239 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8241 *) Fix test data to work with the above.
8244 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8245 was already fixed by Eric for 0.9.1 it seems.
8246 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8248 *) Autodetect FreeBSD3.
8251 *) Fix various bugs in Configure. This affects the following platforms:
8255 unixware-2.0-pentium
8259 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8260 before they are needed.
8263 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8267 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8269 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8270 changed SSLeay to OpenSSL in version strings.
8271 [Ralf S. Engelschall]
8273 *) Some fixups to the top-level documents.
8276 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8277 because the symlink to include/ was missing.
8278 [Ralf S. Engelschall]
8280 *) Incorporated the popular no-RSA/DSA-only patches
8281 which allow to compile a RSA-free SSLeay.
8282 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8284 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8285 when "ssleay" is still not found.
8286 [Ralf S. Engelschall]
8288 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8289 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8291 *) Updated the README file.
8292 [Ralf S. Engelschall]
8294 *) Added various .cvsignore files in the CVS repository subdirs
8295 to make a "cvs update" really silent.
8296 [Ralf S. Engelschall]
8298 *) Recompiled the error-definition header files and added
8299 missing symbols to the Win32 linker tables.
8300 [Ralf S. Engelschall]
8302 *) Cleaned up the top-level documents;
8303 o new files: CHANGES and LICENSE
8304 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8305 o merged COPYRIGHT into LICENSE
8306 o removed obsolete TODO file
8307 o renamed MICROSOFT to INSTALL.W32
8308 [Ralf S. Engelschall]
8310 *) Removed dummy files from the 0.9.1b source tree:
8311 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8312 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8313 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8314 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8315 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8316 [Ralf S. Engelschall]
8318 *) Added various platform portability fixes.
8321 *) The Genesis of the OpenSSL rpject:
8322 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8323 Young and Tim J. Hudson created while they were working for C2Net until
8325 [The OpenSSL Project]
8328 Changes between 0.9.0b and 0.9.1b [not released]
8330 *) Updated a few CA certificates under certs/
8333 *) Changed some BIGNUM api stuff.
8336 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8337 DGUX x86, Linux Alpha, etc.
8340 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8341 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8345 *) Add -strparse option to asn1pars program which parses nested
8347 [Dr Stephen Henson <shenson@bigfoot.com>]
8349 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8352 *) DSA fix for "ca" program.
8355 *) Added "-genkey" option to "dsaparam" program.
8358 *) Added RIPE MD160 (rmd160) message digest.
8361 *) Added -a (all) option to "ssleay version" command.
8364 *) Added PLATFORM define which is the id given to Configure.
8367 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8370 *) Extended the ASN.1 parser routines.
8373 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8376 *) Added a BN_CTX to the BN library.
8379 *) Fixed the weak key values in DES library
8382 *) Changed API in EVP library for cipher aliases.
8385 *) Added support for RC2/64bit cipher.
8388 *) Converted the lhash library to the crypto/mem.c functions.
8391 *) Added more recognized ASN.1 object ids.
8394 *) Added more RSA padding checks for SSL/TLS.
8397 *) Added BIO proxy/filter functionality.
8400 *) Added extra_certs to SSL_CTX which can be used
8401 send extra CA certificates to the client in the CA cert chain sending
8402 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8405 *) Now Fortezza is denied in the authentication phase because
8406 this is key exchange mechanism is not supported by SSLeay at all.
8409 *) Additional PKCS1 checks.
8412 *) Support the string "TLSv1" for all TLS v1 ciphers.
8415 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8416 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8419 *) Fixed a few memory leaks.
8422 *) Fixed various code and comment typos.
8425 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8426 bytes sent in the client random.
8427 [Edward Bishop <ebishop@spyglass.com>]