5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) Change ssl_cipher_apply_rule(), the internal function that does
8 the work each time a ciphersuite string requests enabling
9 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
10 removing ("!foo+bar") a class of ciphersuites: Now it maintains
11 the order of disabled ciphersuites such that those ciphersuites
12 that most recently went from enabled to disabled not only stay
13 in order with respect to each other, but also have higher priority
14 than other disabled ciphersuites the next time ciphersuites are
17 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
18 the same ciphersuites as with "HIGH" alone, but in a specific
19 order where the PSK ciphersuites come first (since they are the
20 most recently disabled ciphersuites when "HIGH" is parsed).
22 Also, change ssl_create_cipher_list() (using this new
23 funcionality) such that between otherwise identical
24 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
28 *) Change ssl_create_cipher_list() so that it automatically
29 arranges the ciphersuites in reasonable order before starting
30 to process the rule string. Thus, the definition for "DEFAULT"
31 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
32 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
33 This makes it much easier to arrive at a reasonable default order
34 in applications for which anonymous ciphers are OK (meaning
35 that you can't actually use DEFAULT).
36 [Bodo Moeller; suggested by Victor Duchovni]
38 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
39 processing) into multiple integers instead of setting
40 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
41 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
42 (These masks as well as the individual bit definitions are hidden
43 away into the non-exported interface ssl/ssl_locl.h, so this
44 change to the definition of the SSL_CIPHER structure shouldn't
45 affect applications.) This give us more bits for each of these
46 categories, so there is no longer a need to coagulate AES128 and
47 AES256 into a single algorithm bit, and to coagulate Camellia128
48 and Camellia256 into a single algorithm bit, which has led to all
51 Thus, among other things, the kludge introduced in 0.9.7m and
52 0.9.8e for masking out AES256 independently of AES128 or masking
53 out Camellia256 independently of AES256 is not needed here in 0.9.9.
55 With the change, we also introduce new ciphersuite aliases that
56 so far were missing: "AES128", "AES256", "CAMELLIA128", and
60 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
61 Use the leftmost N bytes of the signature input if the input is
62 larger than the prime q (with N being the size in bytes of q).
65 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
66 it yet and it is largely untested.
69 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
72 *) Initial incomplete changes to avoid need for function casts in OpenSSL
73 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
74 their use. Safestack is reimplemented using inline functions: tests show
75 that these calls are typically optimized away by compilers so they have
76 no additional overhead. Update ASN1 to avoid use of legacy functions.
79 *) Win32/64 targets are linked with Winsock2.
82 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
83 to external functions. This can be used to increase CRL handling
84 efficiency especially when CRLs are very large by (for example) storing
85 the CRL revoked certificates in a database.
88 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
89 new CRLs added to a directory can be used. New command line option
90 -verify_return_error to s_client and s_server. This causes real errors
91 to be returned by the verify callback instead of carrying on no matter
92 what. This reflects the way a "real world" verify callback would behave.
95 *) GOST engine, supporting several GOST algorithms and public key formats.
96 Kindly donated by Cryptocom.
99 *) Partial support for Issuing Distribution Point CRL extension. CRLs
100 partitioned by DP are handled but no indirect CRL or reason partitioning
101 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
102 selected via a scoring technique which handles IDP and AKID in CRLs.
105 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
106 will ultimately be used for all verify operations: this will remove the
107 X509_STORE dependency on certificate verification and allow alternative
108 lookup methods. X509_STORE based implementations of these two callbacks.
111 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
112 Modify get_crl() to find a valid (unexpired) CRL if possible.
115 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
116 this would be called X509_CRL_cmp() but that name is already used by
117 a function that just compares CRL issuer names. Cache several CRL
118 extensions in X509_CRL structure and cache CRLDP in X509.
121 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
122 this maps equivalent X509_NAME structures into a consistent structure.
123 Name comparison can then be performed rapidly using memcmp().
126 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
130 *) Allow digests to supply their own micalg string for S/MIME type using
131 the ctrl EVP_MD_CTRL_MICALG.
134 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
135 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
136 ctrl. It can then customise the structure before and/or after signing
140 *) New function OBJ_add_sigid() to allow application defined signature OIDs
141 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
142 to free up any added signature OIDs.
145 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
146 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
147 digest and cipher tables. New options added to openssl utility:
148 list-message-digest-algorithms and list-cipher-algorithms.
151 *) In addition to the numerical (unsigned long) thread ID, provide
152 for a pointer (void *) thread ID. This helps accomodate systems
153 that do not provide an unsigned long thread ID. OpenSSL assumes
154 it is in the same thread iff both the numerical and the pointer
155 thread ID agree; so applications are just required to define one
156 of them appropriately (e.g., by using a pointer to a per-thread
157 memory object malloc()ed by the application for the pointer-type
158 thread ID). Exactly analoguous to the existing functions
160 void CRYPTO_set_id_callback(unsigned long (*func)(void));
161 unsigned long (*CRYPTO_get_id_callback(void))(void);
162 unsigned long CRYPTO_thread_id(void);
164 we now have additional functions
166 void CRYPTO_set_idptr_callback(void *(*func)(void));
167 void *(*CRYPTO_get_idptr_callback(void))(void);
168 void *CRYPTO_thread_idptr(void);
170 also in <openssl/crypto.h>. The default value for
171 CRYPTO_thread_idptr() if the application has not provided its own
175 *) Change the array representation of binary polynomials: the list
176 of degrees of non-zero coefficients is now terminated with -1.
177 Previously it was terminated with 0, which was also part of the
178 value; thus, the array representation was not applicable to
179 polynomials where t^0 has coefficient zero. This change makes
180 the array representation useful in a more general context.
183 *) Various modifications and fixes to SSL/TLS cipher string
184 handling. For ECC, the code now distinguishes between fixed ECDH
185 with RSA certificates on the one hand and with ECDSA certificates
186 on the other hand, since these are separate ciphersuites. The
187 unused code for Fortezza ciphersuites has been removed.
189 For consistency with EDH, ephemeral ECDH is now called "EECDH"
190 (not "ECDHE"). For consistency with the code for DH
191 certificates, use of ECDH certificates is now considered ECDH
192 authentication, not RSA or ECDSA authentication (the latter is
193 merely the CA's signing algorithm and not actively used in the
196 The temporary ciphersuite alias "ECCdraft" is no longer
197 available, and ECC ciphersuites are no longer excluded from "ALL"
198 and "DEFAULT". The following aliases now exist for RFC 4492
199 ciphersuites, most of these by analogy with the DH case:
201 kECDHr - ECDH cert, signed with RSA
202 kECDHe - ECDH cert, signed with ECDSA
203 kECDH - ECDH cert (signed with either RSA or ECDSA)
204 kEECDH - ephemeral ECDH
205 ECDH - ECDH cert or ephemeral ECDH
211 AECDH - anonymous ECDH
212 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
216 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
217 Use correct micalg parameters depending on digest(s) in signed message.
220 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
221 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
224 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
225 an engine to register a method. Add ENGINE lookups for methods and
226 functional reference processing.
229 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
230 EVP_{Sign,Verify}* which allow an application to customise the signature
234 *) New -resign option to smime utility. This adds one or more signers
235 to an existing PKCS#7 signedData structure. Also -md option to use an
236 alternative message digest algorithm for signing.
239 *) Tidy up PKCS#7 routines and add new functions to make it easier to
240 create PKCS7 structures containing multiple signers. Update smime
241 application to support multiple signers.
244 *) New -macalg option to pkcs12 utility to allow setting of an alternative
248 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
249 Reorganize PBE internals to lookup from a static table using NIDs,
250 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
251 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
252 PRF which will be automatically used with PBES2.
255 *) Replace the algorithm specific calls to generate keys in "req" with the
259 *) Update PKCS#7 enveloped data routines to use new API. This is now
260 supported by any public key method supporting the encrypt operation. A
261 ctrl is added to allow the public key algorithm to examine or modify
262 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
266 *) Add a ctrl to asn1 method to allow a public key algorithm to express
267 a default digest type to use. In most cases this will be SHA1 but some
268 algorithms (such as GOST) need to specify an alternative digest. The
269 return value indicates how strong the prefernce is 1 means optional and
270 2 is mandatory (that is it is the only supported type). Modify
271 ASN1_item_sign() to accept a NULL digest argument to indicate it should
272 use the default md. Update openssl utilities to use the default digest
273 type for signing if it is not explicitly indicated.
276 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
277 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
278 signing method from the key type. This effectively removes the link
279 between digests and public key types.
282 *) Add an OID cross reference table and utility functions. Its purpose is to
283 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
284 rsaEncryption. This will allow some of the algorithm specific hackery
285 needed to use the correct OID to be removed.
288 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
289 structures for PKCS7_sign(). They are now set up by the relevant public
293 *) Add provisional EC pkey method with support for ECDSA and ECDH.
296 *) Add support for key derivation (agreement) in the API, DH method and
300 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
301 public and private key formats. As a side effect these add additional
302 command line functionality not previously available: DSA signatures can be
303 generated and verified using pkeyutl and DH key support and generation in
308 [Oliver Tappe <zooey@hirschkaefer.de>]
310 *) New make target "install_html_docs" installs HTML renditions of the
312 [Oliver Tappe <zooey@hirschkaefer.de>]
314 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
315 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
316 support key and parameter generation and add initial key generation
317 functionality for RSA.
320 *) Add functions for main EVP_PKEY_method operations. The undocumented
321 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
322 EVP_PKEY_{encrypt,decrypt}_old.
325 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
326 key API, doesn't do much yet.
329 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
330 public key algorithms. New option to openssl utility:
331 "list-public-key-algorithms" to print out info.
334 *) Implement the Supported Elliptic Curves Extension for
335 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
338 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
339 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
342 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
343 utilities such as rsa, dsa, dsaparam etc except they process any key
347 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
348 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
349 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
353 *) Initial support for pluggable public key ASN1.
354 De-spaghettify the public key ASN1 handling. Move public and private
355 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
356 algorithm specific handling to a single module within the relevant
357 algorithm directory. Add functions to allow (near) opaque processing
358 of public and private key structures.
361 *) Implement the Supported Point Formats Extension for
362 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
365 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
366 for the psk identity [hint] and the psk callback functions to the
367 SSL_SESSION, SSL and SSL_CTX structure.
370 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
374 SSL_CTX_use_psk_identity_hint
375 SSL_get_psk_identity_hint
377 SSL_use_psk_identity_hint
379 [Mika Kousa and Pasi Eronen of Nokia Corporation]
381 *) Add RFC 3161 compliant time stamp request creation, response generation
382 and response verification functionality.
383 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
385 *) Add initial support for TLS extensions, specifically for the server_name
386 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
387 have new members for a host name. The SSL data structure has an
388 additional member SSL_CTX *initial_ctx so that new sessions can be
389 stored in that context to allow for session resumption, even after the
390 SSL has been switched to a new SSL_CTX in reaction to a client's
391 server_name extension.
393 New functions (subject to change):
396 SSL_get_servername_type()
399 New CTRL codes and macros (subject to change):
401 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
402 - SSL_CTX_set_tlsext_servername_callback()
403 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
404 - SSL_CTX_set_tlsext_servername_arg()
405 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
407 openssl s_client has a new '-servername ...' option.
409 openssl s_server has new options '-servername_host ...', '-cert2 ...',
410 '-key2 ...', '-servername_fatal' (subject to change). This allows
411 testing the HostName extension for a specific single host name ('-cert'
412 and '-key' remain fallbacks for handshakes without HostName
413 negotiation). If the unrecogninzed_name alert has to be sent, this by
414 default is a warning; it becomes fatal with the '-servername_fatal'
417 [Peter Sylvester, Remy Allais, Christophe Renou]
419 *) Whirlpool hash implementation is added.
422 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
423 bn(64,32). Because of instruction set limitations it doesn't have
424 any negative impact on performance. This was done mostly in order
425 to make it possible to share assembler modules, such as bn_mul_mont
426 implementations, between 32- and 64-bit builds without hassle.
429 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
430 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
434 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
435 dedicated Montgomery multiplication procedure, is introduced.
436 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
437 "64-bit" performance on certain 32-bit targets.
440 *) New option SSL_OP_NO_COMP to disable use of compression selectively
441 in SSL structures. New SSL ctrl to set maximum send fragment size.
442 Save memory by seeting the I/O buffer sizes dynamically instead of
443 using the maximum available value.
446 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
447 in addition to the text details.
450 *) Very, very preliminary EXPERIMENTAL support for printing of general
451 ASN1 structures. This currently produces rather ugly output and doesn't
452 handle several customised structures at all.
455 *) Integrated support for PVK file format and some related formats such
456 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
457 these in the 'rsa' and 'dsa' utilities.
460 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
463 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
464 place for the (very old) "NETSCAPE" format certificates which are now
465 handled using new ASN1 code equivalents.
468 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
469 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
470 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
473 *) Modify CRL distribution points extension code to print out previously
474 unsupported fields. Enhance extension setting code to allow setting of
478 *) Add print and set support for Issuing Distribution Point CRL extension.
481 *) Change 'Configure' script to enable Camellia by default.
484 Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
486 *) Mitigate branch prediction attacks, which can be practical if a
487 single processor is shared, allowing a spy process to extract
488 information. For detailed background information, see
489 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
490 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
491 and Necessary Software Countermeasures"). The core of the change
492 are new versions BN_div_no_branch() and
493 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
494 respectively, which are slower, but avoid the security-relevant
495 conditional branches. These are automatically called by BN_div()
496 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
497 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
498 remove a conditional branch.
500 BN_FLG_CONSTTIME is the new name for the previous
501 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
502 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
503 in the exponent causes BN_mod_exp_mont() to use the alternative
504 implementation in BN_mod_exp_mont_consttime().) The old name
505 remains as a deprecated alias.
507 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
508 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
509 constant-time implementations for more than just exponentiation.
510 Here too the old name is kept as a deprecated alias.
512 BN_BLINDING_new() will now use BN_dup() for the modulus so that
513 the BN_BLINDING structure gets an independent copy of the
514 modulus. This means that the previous "BIGNUM *m" argument to
515 BN_BLINDING_new() and to BN_BLINDING_create_param() now
516 essentially becomes "const BIGNUM *m", although we can't actually
517 change this in the header file before 0.9.9. It allows
518 RSA_setup_blinding() to use BN_with_flags() on the modulus to
519 enable BN_FLG_CONSTTIME.
521 [Matthew D Wood (Intel Corp)]
523 *) In the SSL/TLS server implementation, be strict about session ID
524 context matching (which matters if an application uses a single
525 external cache for different purposes). Previously,
526 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
527 set. This did ensure strict client verification, but meant that,
528 with applications using a single external cache for quite
529 different requirements, clients could circumvent ciphersuite
530 restrictions for a given session ID context by starting a session
531 in a different context.
534 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
535 a ciphersuite string such as "DEFAULT:RSA" cannot enable
536 authentication-only ciphersuites.
539 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
541 *) Since AES128 and AES256 (and similarly Camellia128 and
542 Camellia256) share a single mask bit in the logic of
543 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
544 kludge to work properly if AES128 is available and AES256 isn't
545 (or if Camellia128 is available and Camellia256 isn't).
548 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
549 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
550 When a point or a seed is encoded in a BIT STRING, we need to
551 prevent the removal of trailing zero bits to get the proper DER
552 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
553 of a NamedBitList, for which trailing 0 bits need to be removed.)
556 *) Have SSL/TLS server implementation tolerate "mismatched" record
557 protocol version while receiving ClientHello even if the
558 ClientHello is fragmented. (The server can't insist on the
559 particular protocol version it has chosen before the ServerHello
560 message has informed the client about his choice.)
563 *) Add RFC 3779 support.
564 [Rob Austein for ARIN, Ben Laurie]
566 *) Load error codes if they are not already present instead of using a
567 static variable. This allows them to be cleanly unloaded and reloaded.
568 Improve header file function name parsing.
571 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
572 or CAPABILITY handshake as required by RFCs.
575 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
577 *) Introduce limits to prevent malicious keys being able to
578 cause a denial of service. (CVE-2006-2940)
579 [Steve Henson, Bodo Moeller]
581 *) Fix ASN.1 parsing of certain invalid structures that can result
582 in a denial of service. (CVE-2006-2937) [Steve Henson]
584 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
585 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
587 *) Fix SSL client code which could crash if connecting to a
588 malicious SSLv2 server. (CVE-2006-4343)
589 [Tavis Ormandy and Will Drewry, Google Security Team]
591 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
592 match only those. Before that, "AES256-SHA" would be interpreted
593 as a pattern and match "AES128-SHA" too (since AES128-SHA got
594 the same strength classification in 0.9.7h) as we currently only
595 have a single AES bit in the ciphersuite description bitmap.
596 That change, however, also applied to ciphersuite strings such as
597 "RC4-MD5" that intentionally matched multiple ciphersuites --
598 namely, SSL 2.0 ciphersuites in addition to the more common ones
599 from SSL 3.0/TLS 1.0.
601 So we change the selection algorithm again: Naming an explicit
602 ciphersuite selects this one ciphersuite, and any other similar
603 ciphersuite (same bitmap) from *other* protocol versions.
604 Thus, "RC4-MD5" again will properly select both the SSL 2.0
605 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
607 Since SSL 2.0 does not have any ciphersuites for which the
608 128/256 bit distinction would be relevant, this works for now.
609 The proper fix will be to use different bits for AES128 and
610 AES256, which would have avoided the problems from the beginning;
611 however, bits are scarce, so we can only do this in a new release
612 (not just a patchlevel) when we can change the SSL_CIPHER
613 definition to split the single 'unsigned long mask' bitmap into
614 multiple values to extend the available space.
618 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
620 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
621 (CVE-2006-4339) [Ben Laurie and Google Security Team]
623 *) Add AES IGE and biIGE modes.
626 *) Change the Unix randomness entropy gathering to use poll() when
627 possible instead of select(), since the latter has some
628 undesirable limitations.
629 [Darryl Miles via Richard Levitte and Bodo Moeller]
631 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
632 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
633 cannot be implicitly activated as part of, e.g., the "AES" alias.
634 However, please upgrade to OpenSSL 0.9.9[-dev] for
635 non-experimental use of the ECC ciphersuites to get TLS extension
636 support, which is required for curve and point format negotiation
637 to avoid potential handshake problems.
640 *) Disable rogue ciphersuites:
642 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
643 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
644 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
646 The latter two were purportedly from
647 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
650 Also deactivate the remaining ciphersuites from
651 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
652 unofficial, and the ID has long expired.
655 *) Fix RSA blinding Heisenbug (problems sometimes occured on
656 dual-core machines) and other potential thread-safety issues.
659 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
660 versions), which is now available for royalty-free use
661 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
662 Also, add Camellia TLS ciphersuites from RFC 4132.
664 To minimize changes between patchlevels in the OpenSSL 0.9.8
665 series, Camellia remains excluded from compilation unless OpenSSL
666 is configured with 'enable-camellia'.
669 *) Disable the padding bug check when compression is in use. The padding
670 bug check assumes the first packet is of even length, this is not
671 necessarily true if compresssion is enabled and can result in false
672 positives causing handshake failure. The actual bug test is ancient
673 code so it is hoped that implementations will either have fixed it by
674 now or any which still have the bug do not support compression.
677 Changes between 0.9.8a and 0.9.8b [04 May 2006]
679 *) When applying a cipher rule check to see if string match is an explicit
680 cipher suite and only match that one cipher suite if it is.
683 *) Link in manifests for VC++ if needed.
684 [Austin Ziegler <halostatue@gmail.com>]
686 *) Update support for ECC-based TLS ciphersuites according to
687 draft-ietf-tls-ecc-12.txt with proposed changes (but without
688 TLS extensions, which are supported starting with the 0.9.9
689 branch, not in the OpenSSL 0.9.8 branch).
692 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
693 opaque EVP_CIPHER_CTX handling.
696 *) Fixes and enhancements to zlib compression code. We now only use
697 "zlib1.dll" and use the default __cdecl calling convention on Win32
698 to conform with the standards mentioned here:
699 http://www.zlib.net/DLL_FAQ.txt
700 Static zlib linking now works on Windows and the new --with-zlib-include
701 --with-zlib-lib options to Configure can be used to supply the location
702 of the headers and library. Gracefully handle case where zlib library
706 *) Several fixes and enhancements to the OID generation code. The old code
707 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
708 handle numbers larger than ULONG_MAX, truncated printing and had a
709 non standard OBJ_obj2txt() behaviour.
712 *) Add support for building of engines under engine/ as shared libraries
713 under VC++ build system.
716 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
717 Hopefully, we will not see any false combination of paths any more.
720 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
722 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
723 (part of SSL_OP_ALL). This option used to disable the
724 countermeasure against man-in-the-middle protocol-version
725 rollback in the SSL 2.0 server implementation, which is a bad
726 idea. (CVE-2005-2969)
728 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
729 for Information Security, National Institute of Advanced Industrial
730 Science and Technology [AIST], Japan)]
732 *) Add two function to clear and return the verify parameter flags.
735 *) Keep cipherlists sorted in the source instead of sorting them at
736 runtime, thus removing the need for a lock.
739 *) Avoid some small subgroup attacks in Diffie-Hellman.
740 [Nick Mathewson and Ben Laurie]
742 *) Add functions for well-known primes.
745 *) Extended Windows CE support.
746 [Satoshi Nakamura and Andy Polyakov]
748 *) Initialize SSL_METHOD structures at compile time instead of during
749 runtime, thus removing the need for a lock.
752 *) Make PKCS7_decrypt() work even if no certificate is supplied by
753 attempting to decrypt each encrypted key in turn. Add support to
757 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
759 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
762 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
765 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
766 key into the same file any more.
769 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
772 *) Add -utf8 command line and config file option to 'ca'.
773 [Stefan <stf@udoma.org]
775 *) Removed the macro des_crypt(), as it seems to conflict with some
776 libraries. Use DES_crypt().
779 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
780 involves renaming the source and generated shared-libs for
781 both. The engines will accept the corrected or legacy ids
782 ('ncipher' and '4758_cca' respectively) when binding. NB,
783 this only applies when building 'shared'.
784 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
786 *) Add attribute functions to EVP_PKEY structure. Modify
787 PKCS12_create() to recognize a CSP name attribute and
788 use it. Make -CSP option work again in pkcs12 utility.
791 *) Add new functionality to the bn blinding code:
792 - automatic re-creation of the BN_BLINDING parameters after
793 a fixed number of uses (currently 32)
794 - add new function for parameter creation
795 - introduce flags to control the update behaviour of the
796 BN_BLINDING parameters
797 - hide BN_BLINDING structure
798 Add a second BN_BLINDING slot to the RSA structure to improve
799 performance when a single RSA object is shared among several
803 *) Add support for DTLS.
804 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
806 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
807 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
810 *) Remove buggy and incompletet DH cert support from
811 ssl/ssl_rsa.c and ssl/s3_both.c
814 *) Use SHA-1 instead of MD5 as the default digest algorithm for
815 the apps/openssl applications.
818 *) Compile clean with "-Wall -Wmissing-prototypes
819 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
820 DEBUG_SAFESTACK must also be set.
823 *) Change ./Configure so that certain algorithms can be disabled by default.
824 The new counterpiece to "no-xxx" is "enable-xxx".
826 The patented RC5 and MDC2 algorithms will now be disabled unless
827 "enable-rc5" and "enable-mdc2", respectively, are specified.
829 (IDEA remains enabled despite being patented. This is because IDEA
830 is frequently required for interoperability, and there is no license
831 fee for non-commercial use. As before, "no-idea" can be used to
832 avoid this algorithm.)
836 *) Add processing of proxy certificates (see RFC 3820). This work was
837 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
838 EGEE (Enabling Grids for E-science in Europe).
841 *) RC4 performance overhaul on modern architectures/implementations, such
842 as Intel P4, IA-64 and AMD64.
845 *) New utility extract-section.pl. This can be used specify an alternative
846 section number in a pod file instead of having to treat each file as
847 a separate case in Makefile. This can be done by adding two lines to the
850 =for comment openssl_section:XXX
852 The blank line is mandatory.
856 *) New arguments -certform, -keyform and -pass for s_client and s_server
857 to allow alternative format key and certificate files and passphrase
861 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
862 update associated structures and add various utility functions.
864 Add new policy related verify parameters, include policy checking in
865 standard verify code. Enhance 'smime' application with extra parameters
866 to support policy checking and print out.
869 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
870 Nehemiah processors. These extensions support AES encryption in hardware
871 as well as RNG (though RNG support is currently disabled).
872 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
874 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
877 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
878 [Andy Polyakov and a number of other people]
880 *) Improved PowerPC platform support. Most notably BIGNUM assembler
881 implementation contributed by IBM.
882 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
884 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
885 exponent rather than 'unsigned long'. There is a corresponding change to
886 the new 'rsa_keygen' element of the RSA_METHOD structure.
887 [Jelte Jansen, Geoff Thorpe]
889 *) Functionality for creating the initial serial number file is now
890 moved from CA.pl to the 'ca' utility with a new option -create_serial.
892 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
893 number file to 1, which is bound to cause problems. To avoid
894 the problems while respecting compatibility between different 0.9.7
895 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
896 CA.pl for serial number initialization. With the new release 0.9.8,
897 we can fix the problem directly in the 'ca' utility.)
900 *) Reduced header interdepencies by declaring more opaque objects in
901 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
902 give fewer recursive includes, which could break lazy source code - so
903 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
904 developers should define this symbol when building and using openssl to
905 ensure they track the recommended behaviour, interfaces, [etc], but
906 backwards-compatible behaviour prevails when this isn't defined.
909 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
912 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
913 This will generate a random key of the appropriate length based on the
914 cipher context. The EVP_CIPHER can provide its own random key generation
915 routine to support keys of a specific form. This is used in the des and
916 3des routines to generate a key of the correct parity. Update S/MIME
917 code to use new functions and hence generate correct parity DES keys.
918 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
919 valid (weak or incorrect parity).
922 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
923 as looking them up. This is useful when the verified structure may contain
924 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
925 present unless the new PKCS7_NO_CRL flag is asserted.
928 *) Extend ASN1 oid configuration module. It now additionally accepts the
931 shortName = some long name, 1.2.3.4
934 *) Reimplemented the BN_CTX implementation. There is now no more static
935 limitation on the number of variables it can handle nor the depth of the
936 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
937 information can now expand as required, and rather than having a single
938 static array of bignums, BN_CTX now uses a linked-list of such arrays
939 allowing it to expand on demand whilst maintaining the usefulness of
943 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
944 to allow all RSA operations to function using a single BN_CTX.
947 *) Preliminary support for certificate policy evaluation and checking. This
948 is initially intended to pass the tests outlined in "Conformance Testing
949 of Relying Party Client Certificate Path Processing Logic" v1.07.
952 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
953 remained unused and not that useful. A variety of other little bignum
954 tweaks and fixes have also been made continuing on from the audit (see
958 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
959 associated ASN1, EVP and SSL functions and old ASN1 macros.
962 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
963 and this should never fail. So the return value from the use of
964 BN_set_word() (which can fail due to needless expansion) is now deprecated;
965 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
968 *) BN_CTX_get() should return zero-valued bignums, providing the same
969 initialised value as BN_new().
970 [Geoff Thorpe, suggested by Ulf Möller]
972 *) Support for inhibitAnyPolicy certificate extension.
975 *) An audit of the BIGNUM code is underway, for which debugging code is
976 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
977 is considered valid when processing BIGNUMs, and causes execution to
978 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
979 further steps are taken to deliberately pollute unused data in BIGNUM
980 structures to try and expose faulty code further on. For now, openssl will
981 (in its default mode of operation) continue to tolerate the inconsistent
982 forms that it has tolerated in the past, but authors and packagers should
983 consider trying openssl and their own applications when compiled with
984 these debugging symbols defined. It will help highlight potential bugs in
985 their own code, and will improve the test coverage for OpenSSL itself. At
986 some point, these tighter rules will become openssl's default to improve
987 maintainability, though the assert()s and other overheads will remain only
988 in debugging configurations. See bn.h for more details.
989 [Geoff Thorpe, Nils Larsch, Ulf Möller]
991 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
992 that can only be obtained through BN_CTX_new() (which implicitly
993 initialises it). The presence of this function only made it possible
994 to overwrite an existing structure (and cause memory leaks).
997 *) Because of the callback-based approach for implementing LHASH as a
998 template type, lh_insert() adds opaque objects to hash-tables and
999 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1000 to clean up those corresponding objects before destroying the hash table
1001 (and losing the object pointers). So some over-zealous constifications in
1002 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1003 objects as "const" and the lh_doall[_arg] callback wrappers are not
1004 prototyped to have "const" restrictions on the object pointers they are
1005 given (and so aren't required to cast them away any more).
1008 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1009 (speed) prefers to use its own implementation. The two implementations
1010 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1011 its object type properly exposed (MS_TM) instead of casting to/from "char
1012 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1013 aren't necessarily the greatest nomenclatures - but this is what was used
1014 internally to the implementation so I've used that for now.
1017 *) Ensure that deprecated functions do not get compiled when
1018 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1019 the self-tests were still using deprecated key-generation functions so
1020 these have been updated also.
1023 *) Reorganise PKCS#7 code to separate the digest location functionality
1024 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1025 New function PKCS7_set_digest() to set the digest type for PKCS#7
1026 digestedData type. Add additional code to correctly generate the
1027 digestedData type and add support for this type in PKCS7 initialization
1031 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1032 structure of type "other".
1035 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1036 sure the loop does correctly stop and breaking ("division by zero")
1037 modulus operations are not performed. The (pre-generated) prime
1038 table crypto/bn/bn_prime.h was already correct, but it could not be
1039 re-generated on some platforms because of the "division by zero"
1040 situation in the script.
1041 [Ralf S. Engelschall]
1043 *) Update support for ECC-based TLS ciphersuites according to
1044 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1045 SHA-1 now is only used for "small" curves (where the
1046 representation of a field element takes up to 24 bytes); for
1047 larger curves, the field element resulting from ECDH is directly
1048 used as premaster secret.
1049 [Douglas Stebila (Sun Microsystems Laboratories)]
1051 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1052 curve secp160r1 to the tests.
1053 [Douglas Stebila (Sun Microsystems Laboratories)]
1055 *) Add the possibility to load symbols globally with DSO.
1056 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1058 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1059 control of the error stack.
1062 *) Add support for STORE in ENGINE.
1065 *) Add the STORE type. The intention is to provide a common interface
1066 to certificate and key stores, be they simple file-based stores, or
1067 HSM-type store, or LDAP stores, or...
1068 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1071 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1072 pass a list of arguments to any function as well as provide a way
1073 for a function to pass data back to the caller.
1076 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1077 works like BUF_strdup() but can be used to duplicate a portion of
1078 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1082 *) Add the function sk_find_ex() which works like sk_find(), but will
1083 return an index to an element even if an exact match couldn't be
1084 found. The index is guaranteed to point at the element where the
1085 searched-for key would be inserted to preserve sorting order.
1088 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1089 takes an extra flags argument for optional functionality. Currently,
1090 the following flags are defined:
1092 OBJ_BSEARCH_VALUE_ON_NOMATCH
1093 This one gets OBJ_bsearch_ex() to return a pointer to the first
1094 element where the comparing function returns a negative or zero
1097 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1098 This one gets OBJ_bsearch_ex() to return a pointer to the first
1099 element where the comparing function returns zero. This is useful
1100 if there are more than one element where the comparing function
1104 *) Make it possible to create self-signed certificates with 'openssl ca'
1105 in such a way that the self-signed certificate becomes part of the
1106 CA database and uses the same mechanisms for serial number generation
1107 as all other certificate signing. The new flag '-selfsign' enables
1108 this functionality. Adapt CA.sh and CA.pl.in.
1111 *) Add functionality to check the public key of a certificate request
1112 against a given private. This is useful to check that a certificate
1113 request can be signed by that key (self-signing).
1116 *) Make it possible to have multiple active certificates with the same
1117 subject in the CA index file. This is done only if the keyword
1118 'unique_subject' is set to 'no' in the main CA section (default
1119 if 'CA_default') of the configuration file. The value is saved
1120 with the database itself in a separate index attribute file,
1121 named like the index file with '.attr' appended to the name.
1124 *) Generate muti valued AVAs using '+' notation in config files for
1128 *) Support for nameConstraints certificate extension.
1131 *) Support for policyConstraints certificate extension.
1134 *) Support for policyMappings certificate extension.
1137 *) Make sure the default DSA_METHOD implementation only uses its
1138 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1139 and change its own handlers to be NULL so as to remove unnecessary
1140 indirection. This lets alternative implementations fallback to the
1141 default implementation more easily.
1144 *) Support for directoryName in GeneralName related extensions
1148 *) Make it possible to link applications using Makefile.shared.
1149 Make that possible even when linking against static libraries!
1152 *) Support for single pass processing for S/MIME signing. This now
1153 means that S/MIME signing can be done from a pipe, in addition
1154 cleartext signing (multipart/signed type) is effectively streaming
1155 and the signed data does not need to be all held in memory.
1157 This is done with a new flag PKCS7_STREAM. When this flag is set
1158 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1159 is done after the data is output (and digests calculated) in
1160 SMIME_write_PKCS7().
1163 *) Add full support for -rpath/-R, both in shared libraries and
1164 applications, at least on the platforms where it's known how
1168 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1169 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1170 will now compute a table of multiples of the generator that
1171 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1172 faster (notably in the case of a single point multiplication,
1173 scalar * generator).
1174 [Nils Larsch, Bodo Moeller]
1176 *) IPv6 support for certificate extensions. The various extensions
1177 which use the IP:a.b.c.d can now take IPv6 addresses using the
1178 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1182 *) Added an ENGINE that implements RSA by performing private key
1183 exponentiations with the GMP library. The conversions to and from
1184 GMP's mpz_t format aren't optimised nor are any montgomery forms
1185 cached, and on x86 it appears OpenSSL's own performance has caught up.
1186 However there are likely to be other architectures where GMP could
1187 provide a boost. This ENGINE is not built in by default, but it can be
1188 specified at Configure time and should be accompanied by the necessary
1189 linker additions, eg;
1190 ./config -DOPENSSL_USE_GMP -lgmp
1193 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1194 testing availability of engines with "-t" - the old behaviour is
1195 produced by increasing the feature's verbosity with "-tt".
1198 *) ECDSA routines: under certain error conditions uninitialized BN objects
1199 could be freed. Solution: make sure initialization is performed early
1200 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1204 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1205 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1206 software implementations. For DSA and DH, parameter generation can
1207 also be overriden by providing the appropriate method callbacks.
1210 *) Change the "progress" mechanism used in key-generation and
1211 primality testing to functions that take a new BN_GENCB pointer in
1212 place of callback/argument pairs. The new API functions have "_ex"
1213 postfixes and the older functions are reimplemented as wrappers for
1214 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1215 declarations of the old functions to help (graceful) attempts to
1216 migrate to the new functions. Also, the new key-generation API
1217 functions operate on a caller-supplied key-structure and return
1218 success/failure rather than returning a key or NULL - this is to
1219 help make "keygen" another member function of RSA_METHOD etc.
1221 Example for using the new callback interface:
1223 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1227 BN_GENCB_set(&my_cb, my_callback, my_arg);
1229 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1230 /* For the meaning of a, b in calls to my_callback(), see the
1231 * documentation of the function that calls the callback.
1232 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1233 * my_callback should return 1 if it wants BN_is_prime_ex()
1234 * to continue, or 0 to stop.
1239 *) Change the ZLIB compression method to be stateful, and make it
1240 available to TLS with the number defined in
1241 draft-ietf-tls-compression-04.txt.
1244 *) Add the ASN.1 structures and functions for CertificatePair, which
1245 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1247 CertificatePair ::= SEQUENCE {
1248 forward [0] Certificate OPTIONAL,
1249 reverse [1] Certificate OPTIONAL,
1250 -- at least one of the pair shall be present -- }
1252 Also implement the PEM functions to read and write certificate
1253 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1255 This needed to be defined, mostly for the sake of the LDAP
1256 attribute crossCertificatePair, but may prove useful elsewhere as
1260 *) Make it possible to inhibit symlinking of shared libraries in
1261 Makefile.shared, for Cygwin's sake.
1264 *) Extend the BIGNUM API by creating a function
1265 void BN_set_negative(BIGNUM *a, int neg);
1266 and a macro that behave like
1267 int BN_is_negative(const BIGNUM *a);
1269 to avoid the need to access 'a->neg' directly in applications.
1272 *) Implement fast modular reduction for pseudo-Mersenne primes
1273 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1274 EC_GROUP_new_curve_GFp() will now automatically use this
1276 [Nils Larsch <nla@trustcenter.de>]
1278 *) Add new lock type (CRYPTO_LOCK_BN).
1281 *) Change the ENGINE framework to automatically load engines
1282 dynamically from specific directories unless they could be
1283 found to already be built in or loaded. Move all the
1284 current engines except for the cryptodev one to a new
1286 The engines in engines/ are built as shared libraries if
1287 the "shared" options was given to ./Configure or ./config.
1288 Otherwise, they are inserted in libcrypto.a.
1289 /usr/local/ssl/engines is the default directory for dynamic
1290 engines, but that can be overriden at configure time through
1291 the usual use of --prefix and/or --openssldir, and at run
1292 time with the environment variable OPENSSL_ENGINES.
1293 [Geoff Thorpe and Richard Levitte]
1295 *) Add Makefile.shared, a helper makefile to build shared
1296 libraries. Addapt Makefile.org.
1299 *) Add version info to Win32 DLLs.
1300 [Peter 'Luna' Runestig" <peter@runestig.com>]
1302 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1303 can be added using this API to created arbitrary PKCS#12
1304 files while avoiding the low level API.
1306 New options to PKCS12_create(), key or cert can be NULL and
1307 will then be omitted from the output file. The encryption
1308 algorithm NIDs can be set to -1 for no encryption, the mac
1309 iteration count can be set to 0 to omit the mac.
1311 Enhance pkcs12 utility by making the -nokeys and -nocerts
1312 options work when creating a PKCS#12 file. New option -nomac
1313 to omit the mac, NONE can be set for an encryption algorithm.
1314 New code is modified to use the enhanced PKCS12_create()
1315 instead of the low level API.
1318 *) Extend ASN1 encoder to support indefinite length constructed
1319 encoding. This can output sequences tags and octet strings in
1320 this form. Modify pk7_asn1.c to support indefinite length
1321 encoding. This is experimental and needs additional code to
1322 be useful, such as an ASN1 bio and some enhanced streaming
1325 Extend template encode functionality so that tagging is passed
1326 down to the template encoder.
1329 *) Let 'openssl req' fail if an argument to '-newkey' is not
1330 recognized instead of using RSA as a default.
1333 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1334 As these are not official, they are not included in "ALL";
1335 the "ECCdraft" ciphersuite group alias can be used to select them.
1336 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1338 *) Add ECDH engine support.
1339 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1341 *) Add ECDH in new directory crypto/ecdh/.
1342 [Douglas Stebila (Sun Microsystems Laboratories)]
1344 *) Let BN_rand_range() abort with an error after 100 iterations
1345 without success (which indicates a broken PRNG).
1348 *) Change BN_mod_sqrt() so that it verifies that the input value
1349 is really the square of the return value. (Previously,
1350 BN_mod_sqrt would show GIGO behaviour.)
1353 *) Add named elliptic curves over binary fields from X9.62, SECG,
1354 and WAP/WTLS; add OIDs that were still missing.
1356 [Sheueling Chang Shantz and Douglas Stebila
1357 (Sun Microsystems Laboratories)]
1359 *) Extend the EC library for elliptic curves over binary fields
1360 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1363 EC_GF2m_simple_method
1367 EC_GROUP_new_curve_GF2m
1368 EC_GROUP_set_curve_GF2m
1369 EC_GROUP_get_curve_GF2m
1370 EC_POINT_set_affine_coordinates_GF2m
1371 EC_POINT_get_affine_coordinates_GF2m
1372 EC_POINT_set_compressed_coordinates_GF2m
1374 Point compression for binary fields is disabled by default for
1375 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1378 As binary polynomials are represented as BIGNUMs, various members
1379 of the EC_GROUP and EC_POINT data structures can be shared
1380 between the implementations for prime fields and binary fields;
1381 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1382 are essentially identical to their ..._GFp counterparts.
1383 (For simplicity, the '..._GFp' prefix has been dropped from
1384 various internal method names.)
1386 An internal 'field_div' method (similar to 'field_mul' and
1387 'field_sqr') has been added; this is used only for binary fields.
1389 [Sheueling Chang Shantz and Douglas Stebila
1390 (Sun Microsystems Laboratories)]
1392 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1393 through methods ('mul', 'precompute_mult').
1395 The generic implementations (now internally called 'ec_wNAF_mul'
1396 and 'ec_wNAF_precomputed_mult') remain the default if these
1397 methods are undefined.
1399 [Sheueling Chang Shantz and Douglas Stebila
1400 (Sun Microsystems Laboratories)]
1402 *) New function EC_GROUP_get_degree, which is defined through
1403 EC_METHOD. For curves over prime fields, this returns the bit
1404 length of the modulus.
1406 [Sheueling Chang Shantz and Douglas Stebila
1407 (Sun Microsystems Laboratories)]
1409 *) New functions EC_GROUP_dup, EC_POINT_dup.
1410 (These simply call ..._new and ..._copy).
1412 [Sheueling Chang Shantz and Douglas Stebila
1413 (Sun Microsystems Laboratories)]
1415 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1416 Polynomials are represented as BIGNUMs (where the sign bit is not
1417 used) in the following functions [macros]:
1420 BN_GF2m_sub [= BN_GF2m_add]
1421 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1422 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1423 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1425 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1426 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1427 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1428 BN_GF2m_cmp [= BN_ucmp]
1430 (Note that only the 'mod' functions are actually for fields GF(2^m).
1431 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1433 For some functions, an the irreducible polynomial defining a
1434 field can be given as an 'unsigned int[]' with strictly
1435 decreasing elements giving the indices of those bits that are set;
1436 i.e., p[] represents the polynomial
1437 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1439 p[0] > p[1] > ... > p[k] = 0.
1440 This applies to the following functions:
1445 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1446 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1448 BN_GF2m_mod_sqrt_arr
1449 BN_GF2m_mod_solve_quad_arr
1453 Conversion can be performed by the following functions:
1458 bntest.c has additional tests for binary polynomial arithmetic.
1460 Two implementations for BN_GF2m_mod_div() are available.
1461 The default algorithm simply uses BN_GF2m_mod_inv() and
1462 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1463 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1464 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1466 [Sheueling Chang Shantz and Douglas Stebila
1467 (Sun Microsystems Laboratories)]
1469 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1470 functionality is disabled at compile-time.
1471 [Douglas Stebila <douglas.stebila@sun.com>]
1473 *) Change default behaviour of 'openssl asn1parse' so that more
1474 information is visible when viewing, e.g., a certificate:
1476 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1477 mode the content of non-printable OCTET STRINGs is output in a
1478 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1479 avoid the appearance of a printable string.
1480 [Nils Larsch <nla@trustcenter.de>]
1482 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1484 EC_GROUP_set_asn1_flag()
1485 EC_GROUP_get_asn1_flag()
1486 EC_GROUP_set_point_conversion_form()
1487 EC_GROUP_get_point_conversion_form()
1488 These control ASN1 encoding details:
1489 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1490 has been set to OPENSSL_EC_NAMED_CURVE.
1491 - Points are encoded in uncompressed form by default; options for
1492 asn1_for are as for point2oct, namely
1493 POINT_CONVERSION_COMPRESSED
1494 POINT_CONVERSION_UNCOMPRESSED
1495 POINT_CONVERSION_HYBRID
1497 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1500 EC_GROUP_get0_seed()
1501 EC_GROUP_get_seed_len()
1502 This is used only for ASN1 purposes (so far).
1503 [Nils Larsch <nla@trustcenter.de>]
1505 *) Add 'field_type' member to EC_METHOD, which holds the NID
1506 of the appropriate field type OID. The new function
1507 EC_METHOD_get_field_type() returns this value.
1508 [Nils Larsch <nla@trustcenter.de>]
1513 EC_POINT_point2hex()
1514 EC_POINT_hex2point()
1515 providing useful interfaces to EC_POINT_point2oct() and
1516 EC_POINT_oct2point().
1517 [Nils Larsch <nla@trustcenter.de>]
1519 *) Change internals of the EC library so that the functions
1520 EC_GROUP_set_generator()
1521 EC_GROUP_get_generator()
1522 EC_GROUP_get_order()
1523 EC_GROUP_get_cofactor()
1524 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1525 to methods, which would lead to unnecessary code duplication when
1526 adding different types of curves.
1527 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1529 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1530 arithmetic, and such that modified wNAFs are generated
1531 (which avoid length expansion in many cases).
1534 *) Add a function EC_GROUP_check_discriminant() (defined via
1535 EC_METHOD) that verifies that the curve discriminant is non-zero.
1537 Add a function EC_GROUP_check() that makes some sanity tests
1538 on a EC_GROUP, its generator and order. This includes
1539 EC_GROUP_check_discriminant().
1540 [Nils Larsch <nla@trustcenter.de>]
1542 *) Add ECDSA in new directory crypto/ecdsa/.
1544 Add applications 'openssl ecparam' and 'openssl ecdsa'
1545 (these are based on 'openssl dsaparam' and 'openssl dsa').
1547 ECDSA support is also included in various other files across the
1548 library. Most notably,
1549 - 'openssl req' now has a '-newkey ecdsa:file' option;
1550 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1551 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1552 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1553 them suitable for ECDSA where domain parameters must be
1554 extracted before the specific public key;
1555 - ECDSA engine support has been added.
1556 [Nils Larsch <nla@trustcenter.de>]
1558 *) Include some named elliptic curves, and add OIDs from X9.62,
1559 SECG, and WAP/WTLS. Each curve can be obtained from the new
1561 EC_GROUP_new_by_curve_name(),
1562 and the list of available named curves can be obtained with
1563 EC_get_builtin_curves().
1564 Also add a 'curve_name' member to EC_GROUP objects, which can be
1566 EC_GROUP_set_curve_name()
1567 EC_GROUP_get_curve_name()
1568 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1570 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1571 was actually never needed) and in BN_mul(). The removal in BN_mul()
1572 required a small change in bn_mul_part_recursive() and the addition
1573 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1574 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1575 bn_sub_words() and bn_add_words() except they take arrays with
1579 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1581 *) In the SSL/TLS server implementation, be strict about session ID
1582 context matching (which matters if an application uses a single
1583 external cache for different purposes). Previously,
1584 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1585 set. This did ensure strict client verification, but meant that,
1586 with applications using a single external cache for quite
1587 different requirements, clients could circumvent ciphersuite
1588 restrictions for a given session ID context by starting a session
1589 in a different context.
1592 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1594 *) Cleanse PEM buffers before freeing them since they may contain
1596 [Benjamin Bennett <ben@psc.edu>]
1598 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1599 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1600 authentication-only ciphersuites.
1603 *) Since AES128 and AES256 share a single mask bit in the logic of
1604 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1605 kludge to work properly if AES128 is available and AES256 isn't.
1608 *) Expand security boundary to match 1.1.1 module.
1611 *) Remove redundant features: hash file source, editing of test vectors
1612 modify fipsld to use external fips_premain.c signature.
1615 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1616 run algorithm test programs.
1619 *) Make algorithm test programs more tolerant of whitespace.
1622 *) Have SSL/TLS server implementation tolerate "mismatched" record
1623 protocol version while receiving ClientHello even if the
1624 ClientHello is fragmented. (The server can't insist on the
1625 particular protocol version it has chosen before the ServerHello
1626 message has informed the client about his choice.)
1629 *) Load error codes if they are not already present instead of using a
1630 static variable. This allows them to be cleanly unloaded and reloaded.
1633 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1635 *) Introduce limits to prevent malicious keys being able to
1636 cause a denial of service. (CVE-2006-2940)
1637 [Steve Henson, Bodo Moeller]
1639 *) Fix ASN.1 parsing of certain invalid structures that can result
1640 in a denial of service. (CVE-2006-2937) [Steve Henson]
1642 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1643 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1645 *) Fix SSL client code which could crash if connecting to a
1646 malicious SSLv2 server. (CVE-2006-4343)
1647 [Tavis Ormandy and Will Drewry, Google Security Team]
1649 *) Change ciphersuite string processing so that an explicit
1650 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1651 will no longer include "AES128-SHA"), and any other similar
1652 ciphersuite (same bitmap) from *other* protocol versions (so that
1653 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1654 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1655 changes from 0.9.8b and 0.9.8d.
1658 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1660 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1661 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1663 *) Change the Unix randomness entropy gathering to use poll() when
1664 possible instead of select(), since the latter has some
1665 undesirable limitations.
1666 [Darryl Miles via Richard Levitte and Bodo Moeller]
1668 *) Disable rogue ciphersuites:
1670 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1671 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1672 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1674 The latter two were purportedly from
1675 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1678 Also deactive the remaining ciphersuites from
1679 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1680 unofficial, and the ID has long expired.
1683 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1684 dual-core machines) and other potential thread-safety issues.
1687 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1689 *) Adapt fipsld and the build system to link against the validated FIPS
1690 module in FIPS mode.
1693 *) Fixes for VC++ 2005 build under Windows.
1696 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1697 from a Windows bash shell such as MSYS. It is autodetected from the
1698 "config" script when run from a VC++ environment. Modify standard VC++
1699 build to use fipscanister.o from the GNU make build.
1702 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1704 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1705 The value now differs depending on if you build for FIPS or not.
1706 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1707 safely run with a non-FIPSed libcrypto, as it may crash because of
1708 the difference induced by this change.
1711 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1713 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1714 (part of SSL_OP_ALL). This option used to disable the
1715 countermeasure against man-in-the-middle protocol-version
1716 rollback in the SSL 2.0 server implementation, which is a bad
1717 idea. (CVE-2005-2969)
1719 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1720 for Information Security, National Institute of Advanced Industrial
1721 Science and Technology [AIST], Japan)]
1723 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1724 mainly for FIPS compliance and not fully integrated at this stage.
1727 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1728 the exponentiation using a fixed-length exponent. (Otherwise,
1729 the information leaked through timing could expose the secret key
1730 after many signatures; cf. Bleichenbacher's attack on DSA with
1734 *) Make a new fixed-window mod_exp implementation the default for
1735 RSA, DSA, and DH private-key operations so that the sequence of
1736 squares and multiplies and the memory access pattern are
1737 independent of the particular secret key. This will mitigate
1738 cache-timing and potential related attacks.
1740 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1741 and this is automatically used by BN_mod_exp_mont() if the new flag
1742 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1743 will use this BN flag for private exponents unless the flag
1744 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1745 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1747 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1749 *) Change the client implementation for SSLv23_method() and
1750 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1751 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1752 (Previously, the SSL 2.0 backwards compatible Client Hello
1753 message format would be used even with SSL_OP_NO_SSLv2.)
1756 *) Add support for smime-type MIME parameter in S/MIME messages which some
1760 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1761 a threadsafe manner. Modify rsa code to use new function and add calls
1762 to dsa and dh code (which had race conditions before).
1765 *) Include the fixed error library code in the C error file definitions
1766 instead of fixing them up at runtime. This keeps the error code
1767 structures constant.
1770 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1772 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1775 *) Fixes for newer kerberos headers. NB: the casts are needed because
1776 the 'length' field is signed on one version and unsigned on another
1777 with no (?) obvious way to tell the difference, without these VC++
1778 complains. Also the "definition" of FAR (blank) is no longer included
1779 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1780 some needed definitions.
1783 *) Undo Cygwin change.
1786 *) Added support for proxy certificates according to RFC 3820.
1787 Because they may be a security thread to unaware applications,
1788 they must be explicitely allowed in run-time. See
1789 docs/HOWTO/proxy_certificates.txt for further information.
1792 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1794 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1795 server and client random values. Previously
1796 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1797 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1799 This change has negligible security impact because:
1801 1. Server and client random values still have 24 bytes of pseudo random
1804 2. Server and client random values are sent in the clear in the initial
1807 3. The master secret is derived using the premaster secret (48 bytes in
1808 size for static RSA ciphersuites) as well as client server and random
1811 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1814 [Stephen Henson, reported by UK NISCC]
1816 *) Use Windows randomness collection on Cygwin.
1819 *) Fix hang in EGD/PRNGD query when communication socket is closed
1820 prematurely by EGD/PRNGD.
1821 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1823 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1826 *) Back-port of selected performance improvements from development
1827 branch, as well as improved support for PowerPC platforms.
1830 *) Add lots of checks for memory allocation failure, error codes to indicate
1831 failure and freeing up memory if a failure occurs.
1832 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1834 *) Add new -passin argument to dgst.
1837 *) Perform some character comparisons of different types in X509_NAME_cmp:
1838 this is needed for some certificates that reencode DNs into UTF8Strings
1839 (in violation of RFC3280) and can't or wont issue name rollover
1843 *) Make an explicit check during certificate validation to see that
1844 the CA setting in each certificate on the chain is correct. As a
1845 side effect always do the following basic checks on extensions,
1846 not just when there's an associated purpose to the check:
1848 - if there is an unhandled critical extension (unless the user
1849 has chosen to ignore this fault)
1850 - if the path length has been exceeded (if one is set at all)
1851 - that certain extensions fit the associated purpose (if one has
1855 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1857 *) Avoid a race condition when CRLs are checked in a multi threaded
1858 environment. This would happen due to the reordering of the revoked
1859 entries during signature checking and serial number lookup. Now the
1860 encoding is cached and the serial number sort performed under a lock.
1861 Add new STACK function sk_is_sorted().
1864 *) Add Delta CRL to the extension code.
1867 *) Various fixes to s3_pkt.c so alerts are sent properly.
1868 [David Holmes <d.holmes@f5.com>]
1870 *) Reduce the chances of duplicate issuer name and serial numbers (in
1871 violation of RFC3280) using the OpenSSL certificate creation utilities.
1872 This is done by creating a random 64 bit value for the initial serial
1873 number when a serial number file is created or when a self signed
1874 certificate is created using 'openssl req -x509'. The initial serial
1875 number file is created using 'openssl x509 -next_serial' in CA.pl
1876 rather than being initialized to 1.
1879 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1881 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1882 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1883 [Joe Orton, Steve Henson]
1885 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1887 [Joe Orton, Steve Henson]
1889 *) Make it possible to have multiple active certificates with the same
1890 subject in the CA index file. This is done only if the keyword
1891 'unique_subject' is set to 'no' in the main CA section (default
1892 if 'CA_default') of the configuration file. The value is saved
1893 with the database itself in a separate index attribute file,
1894 named like the index file with '.attr' appended to the name.
1897 *) X509 verify fixes. Disable broken certificate workarounds when
1898 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1899 keyUsage extension present. Don't accept CRLs with unhandled critical
1900 extensions: since verify currently doesn't process CRL extensions this
1901 rejects a CRL with *any* critical extensions. Add new verify error codes
1905 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1906 A clarification of RFC2560 will require the use of OCTET STRINGs and
1907 some implementations cannot handle the current raw format. Since OpenSSL
1908 copies and compares OCSP nonces as opaque blobs without any attempt at
1909 parsing them this should not create any compatibility issues.
1912 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1913 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1914 this HMAC (and other) operations are several times slower than OpenSSL
1918 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1919 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1921 *) Use the correct content when signing type "other".
1924 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1926 *) Fix various bugs revealed by running the NISCC test suite:
1928 Stop out of bounds reads in the ASN1 code when presented with
1929 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1931 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1933 If verify callback ignores invalid public key errors don't try to check
1934 certificate signature with the NULL public key.
1938 *) New -ignore_err option in ocsp application to stop the server
1939 exiting on the first error in a request.
1942 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1943 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1947 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1948 extra data after the compression methods not only for TLS 1.0
1949 but also for SSL 3.0 (as required by the specification).
1950 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1952 *) Change X509_certificate_type() to mark the key as exported/exportable
1953 when it's 512 *bits* long, not 512 bytes.
1956 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1957 blocks during encryption.
1960 *) Various fixes to base64 BIO and non blocking I/O. On write
1961 flushes were not handled properly if the BIO retried. On read
1962 data was not being buffered properly and had various logic bugs.
1963 This also affects blocking I/O when the data being decoded is a
1967 *) Various S/MIME bugfixes and compatibility changes:
1968 output correct application/pkcs7 MIME type if
1969 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1970 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1971 of files as .eml work). Correctly handle very long lines in MIME
1975 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1977 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1978 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1979 a protocol version number mismatch like a decryption error
1980 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1983 *) Turn on RSA blinding by default in the default implementation
1984 to avoid a timing attack. Applications that don't want it can call
1985 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1986 They would be ill-advised to do so in most cases.
1987 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1989 *) Change RSA blinding code so that it works when the PRNG is not
1990 seeded (in this case, the secret RSA exponent is abused as
1991 an unpredictable seed -- if it is not unpredictable, there
1992 is no point in blinding anyway). Make RSA blinding thread-safe
1993 by remembering the creator's thread ID in rsa->blinding and
1994 having all other threads use local one-time blinding factors
1995 (this requires more computation than sharing rsa->blinding, but
1996 avoids excessive locking; and if an RSA object is not shared
1997 between threads, blinding will still be very fast).
2000 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2001 ENGINE as defaults for all supported algorithms irrespective of
2002 the 'flags' parameter. 'flags' is now honoured, so applications
2003 should make sure they are passing it correctly.
2006 *) Target "mingw" now allows native Windows code to be generated in
2007 the Cygwin environment as well as with the MinGW compiler.
2010 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2012 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2013 via timing by performing a MAC computation even if incorrrect
2014 block cipher padding has been found. This is a countermeasure
2015 against active attacks where the attacker has to distinguish
2016 between bad padding and a MAC verification error. (CVE-2003-0078)
2018 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2019 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2020 Martin Vuagnoux (EPFL, Ilion)]
2022 *) Make the no-err option work as intended. The intention with no-err
2023 is not to have the whole error stack handling routines removed from
2024 libcrypto, it's only intended to remove all the function name and
2025 reason texts, thereby removing some of the footprint that may not
2026 be interesting if those errors aren't displayed anyway.
2028 NOTE: it's still possible for any application or module to have it's
2029 own set of error texts inserted. The routines are there, just not
2030 used by default when no-err is given.
2033 *) Add support for FreeBSD on IA64.
2034 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2036 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2037 Kerberos function mit_des_cbc_cksum(). Before this change,
2038 the value returned by DES_cbc_cksum() was like the one from
2039 mit_des_cbc_cksum(), except the bytes were swapped.
2040 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2042 *) Allow an application to disable the automatic SSL chain building.
2043 Before this a rather primitive chain build was always performed in
2044 ssl3_output_cert_chain(): an application had no way to send the
2045 correct chain if the automatic operation produced an incorrect result.
2047 Now the chain builder is disabled if either:
2049 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2051 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2053 The reasoning behind this is that an application would not want the
2054 auto chain building to take place if extra chain certificates are
2055 present and it might also want a means of sending no additional
2056 certificates (for example the chain has two certificates and the
2060 *) Add the possibility to build without the ENGINE framework.
2061 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2063 *) Under Win32 gmtime() can return NULL: check return value in
2064 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2067 *) DSA routines: under certain error conditions uninitialized BN objects
2068 could be freed. Solution: make sure initialization is performed early
2069 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2070 Nils Larsch <nla@trustcenter.de> via PR#459)
2073 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2074 checked on reconnect on the client side, therefore session resumption
2075 could still fail with a "ssl session id is different" error. This
2076 behaviour is masked when SSL_OP_ALL is used due to
2077 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2078 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2079 followup to PR #377.
2082 *) IA-32 assembler support enhancements: unified ELF targets, support
2083 for SCO/Caldera platforms, fix for Cygwin shared build.
2086 *) Add support for FreeBSD on sparc64. As a consequence, support for
2087 FreeBSD on non-x86 processors is separate from x86 processors on
2088 the config script, much like the NetBSD support.
2089 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2091 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2093 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2096 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2097 code (06) was taken as the first octet of the session ID and the last
2098 octet was ignored consequently. As a result SSLv2 client side session
2099 caching could not have worked due to the session ID mismatch between
2101 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2105 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2106 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2110 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2111 seems that in spite of existing for more than a year, many application
2112 author have done nothing to provide the necessary callbacks, which
2113 means that this particular engine will not work properly anywhere.
2114 This is a very unfortunate situation which forces us, in the name
2115 of usability, to give the hw_ncipher.c a static lock, which is part
2117 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2118 appear in 0.9.8 or later. We EXPECT application authors to have
2119 dealt properly with this when 0.9.8 is released (unless we actually
2120 make such changes in the libcrypto locking code that changes will
2121 have to be made anyway).
2124 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2125 octets have been read, EOF or an error occurs. Without this change
2126 some truncated ASN1 structures will not produce an error.
2129 *) Disable Heimdal support, since it hasn't been fully implemented.
2130 Still give the possibility to force the use of Heimdal, but with
2131 warnings and a request that patches get sent to openssl-dev.
2134 *) Add the VC-CE target, introduce the WINCE sysname, and add
2135 INSTALL.WCE and appropriate conditionals to make it build.
2136 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2138 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2139 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2140 edit numbers of the version.
2141 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2143 *) Introduce safe string copy and catenation functions
2144 (BUF_strlcpy() and BUF_strlcat()).
2145 [Ben Laurie (CHATS) and Richard Levitte]
2147 *) Avoid using fixed-size buffers for one-line DNs.
2148 [Ben Laurie (CHATS)]
2150 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2151 resizing buffers containing secrets, and use where appropriate.
2152 [Ben Laurie (CHATS)]
2154 *) Avoid using fixed size buffers for configuration file location.
2155 [Ben Laurie (CHATS)]
2157 *) Avoid filename truncation for various CA files.
2158 [Ben Laurie (CHATS)]
2160 *) Use sizeof in preference to magic numbers.
2161 [Ben Laurie (CHATS)]
2163 *) Avoid filename truncation in cert requests.
2164 [Ben Laurie (CHATS)]
2166 *) Add assertions to check for (supposedly impossible) buffer
2168 [Ben Laurie (CHATS)]
2170 *) Don't cache truncated DNS entries in the local cache (this could
2171 potentially lead to a spoofing attack).
2172 [Ben Laurie (CHATS)]
2174 *) Fix various buffers to be large enough for hex/decimal
2175 representations in a platform independent manner.
2176 [Ben Laurie (CHATS)]
2178 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2179 resizing buffers containing secrets, and use where appropriate.
2180 [Ben Laurie (CHATS)]
2182 *) Add BIO_indent() to avoid much slightly worrying code to do
2184 [Ben Laurie (CHATS)]
2186 *) Convert sprintf()/BIO_puts() to BIO_printf().
2187 [Ben Laurie (CHATS)]
2189 *) buffer_gets() could terminate with the buffer only half
2191 [Ben Laurie (CHATS)]
2193 *) Add assertions to prevent user-supplied crypto functions from
2194 overflowing internal buffers by having large block sizes, etc.
2195 [Ben Laurie (CHATS)]
2197 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2199 [Ben Laurie (CHATS)]
2201 *) Eliminate unused copy of key in RC4.
2202 [Ben Laurie (CHATS)]
2204 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2205 [Ben Laurie (CHATS)]
2207 *) Fix off-by-one error in EGD path.
2208 [Ben Laurie (CHATS)]
2210 *) If RANDFILE path is too long, ignore instead of truncating.
2211 [Ben Laurie (CHATS)]
2213 *) Eliminate unused and incorrectly sized X.509 structure
2215 [Ben Laurie (CHATS)]
2217 *) Eliminate unused and dangerous function knumber().
2218 [Ben Laurie (CHATS)]
2220 *) Eliminate unused and dangerous structure, KSSL_ERR.
2221 [Ben Laurie (CHATS)]
2223 *) Protect against overlong session ID context length in an encoded
2224 session object. Since these are local, this does not appear to be
2226 [Ben Laurie (CHATS)]
2228 *) Change from security patch (see 0.9.6e below) that did not affect
2229 the 0.9.6 release series:
2231 Remote buffer overflow in SSL3 protocol - an attacker could
2232 supply an oversized master key in Kerberos-enabled versions.
2234 [Ben Laurie (CHATS)]
2236 *) Change the SSL kerb5 codes to match RFC 2712.
2239 *) Make -nameopt work fully for req and add -reqopt switch.
2240 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2242 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2243 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2245 *) Make sure tests can be performed even if the corresponding algorithms
2246 have been removed entirely. This was also the last step to make
2247 OpenSSL compilable with DJGPP under all reasonable conditions.
2248 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2250 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2251 to allow version independent disabling of normally unselected ciphers,
2252 which may be activated as a side-effect of selecting a single cipher.
2254 (E.g., cipher list string "RSA" enables ciphersuites that are left
2255 out of "ALL" because they do not provide symmetric encryption.
2256 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2257 [Lutz Jaenicke, Bodo Moeller]
2259 *) Add appropriate support for separate platform-dependent build
2260 directories. The recommended way to make a platform-dependent
2261 build directory is the following (tested on Linux), maybe with
2264 # Place yourself outside of the OpenSSL source tree. In
2265 # this example, the environment variable OPENSSL_SOURCE
2266 # is assumed to contain the absolute OpenSSL source directory.
2267 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2268 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2269 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2270 mkdir -p `dirname $F`
2271 ln -s $OPENSSL_SOURCE/$F $F
2274 To be absolutely sure not to disturb the source tree, a "make clean"
2275 is a good thing. If it isn't successfull, don't worry about it,
2276 it probably means the source directory is very clean.
2279 *) Make sure any ENGINE control commands make local copies of string
2280 pointers passed to them whenever necessary. Otherwise it is possible
2281 the caller may have overwritten (or deallocated) the original string
2282 data when a later ENGINE operation tries to use the stored values.
2283 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2285 *) Improve diagnostics in file reading and command-line digests.
2286 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2288 *) Add AES modes CFB and OFB to the object database. Correct an
2289 error in AES-CFB decryption.
2292 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2293 allows existing EVP_CIPHER_CTX structures to be reused after
2294 calling EVP_*Final(). This behaviour is used by encryption
2295 BIOs and some applications. This has the side effect that
2296 applications must explicitly clean up cipher contexts with
2297 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2300 *) Check the values of dna and dnb in bn_mul_recursive before calling
2301 bn_mul_comba (a non zero value means the a or b arrays do not contain
2302 n2 elements) and fallback to bn_mul_normal if either is not zero.
2305 *) Fix escaping of non-ASCII characters when using the -subj option
2306 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2309 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2310 form for "surname", serialNumber has no short form.
2311 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2312 therefore remove "mail" short name for "internet 7".
2313 The OID for unique identifiers in X509 certificates is
2314 x500UniqueIdentifier, not uniqueIdentifier.
2315 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2318 *) Add an "init" command to the ENGINE config module and auto initialize
2319 ENGINEs. Without any "init" command the ENGINE will be initialized
2320 after all ctrl commands have been executed on it. If init=1 the
2321 ENGINE is initailized at that point (ctrls before that point are run
2322 on the uninitialized ENGINE and after on the initialized one). If
2323 init=0 then the ENGINE will not be iniatialized at all.
2326 *) Fix the 'app_verify_callback' interface so that the user-defined
2327 argument is actually passed to the callback: In the
2328 SSL_CTX_set_cert_verify_callback() prototype, the callback
2329 declaration has been changed from
2332 int (*cb)(X509_STORE_CTX *,void *);
2333 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2334 i=s->ctx->app_verify_callback(&ctx)
2335 has been changed into
2336 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2338 To update applications using SSL_CTX_set_cert_verify_callback(),
2339 a dummy argument can be added to their callback functions.
2340 [D. K. Smetters <smetters@parc.xerox.com>]
2342 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2343 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2345 *) Add and OPENSSL_LOAD_CONF define which will cause
2346 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2347 This allows older applications to transparently support certain
2348 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2349 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2350 load the config file and OPENSSL_add_all_algorithms_conf() which will
2351 always load it have also been added.
2354 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2355 Adjust NIDs and EVP layer.
2356 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2358 *) Config modules support in openssl utility.
2360 Most commands now load modules from the config file,
2361 though in a few (such as version) this isn't done
2362 because it couldn't be used for anything.
2364 In the case of ca and req the config file used is
2365 the same as the utility itself: that is the -config
2366 command line option can be used to specify an
2370 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2371 use "openssl_conf" if filename is NULL use default openssl config file.
2374 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2375 config section name. Add a new flag to tolerate a missing config file
2376 and move code to CONF_modules_load_file().
2379 *) Support for crypto accelerator cards from Accelerated Encryption
2380 Processing, www.aep.ie. (Use engine 'aep')
2381 The support was copied from 0.9.6c [engine] and adapted/corrected
2382 to work with the new engine framework.
2383 [AEP Inc. and Richard Levitte]
2385 *) Support for SureWare crypto accelerator cards from Baltimore
2386 Technologies. (Use engine 'sureware')
2387 The support was copied from 0.9.6c [engine] and adapted
2388 to work with the new engine framework.
2391 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2392 make the newer ENGINE framework commands for the CHIL engine work.
2393 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2395 *) Make it possible to produce shared libraries on ReliantUNIX.
2396 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2398 *) Add the configuration target debug-linux-ppro.
2399 Make 'openssl rsa' use the general key loading routines
2400 implemented in apps.c, and make those routines able to
2401 handle the key format FORMAT_NETSCAPE and the variant
2403 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2405 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2406 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2408 *) Add -keyform to rsautl, and document -engine.
2409 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2411 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2412 BIO_R_NO_SUCH_FILE error code rather than the generic
2413 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2416 *) Add new functions
2418 ERR_peek_last_error_line
2419 ERR_peek_last_error_line_data.
2420 These are similar to
2423 ERR_peek_error_line_data,
2424 but report on the latest error recorded rather than the first one
2425 still in the error queue.
2426 [Ben Laurie, Bodo Moeller]
2428 *) default_algorithms option in ENGINE config module. This allows things
2430 default_algorithms = ALL
2431 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2434 *) Prelminary ENGINE config module.
2437 *) New experimental application configuration code.
2440 *) Change the AES code to follow the same name structure as all other
2441 symmetric ciphers, and behave the same way. Move everything to
2442 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2443 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2445 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2446 [Ben Laurie and Theo de Raadt]
2448 *) Add option to output public keys in req command.
2449 [Massimiliano Pala madwolf@openca.org]
2451 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2452 (up to about 10% better than before for P-192 and P-224).
2455 *) New functions/macros
2457 SSL_CTX_set_msg_callback(ctx, cb)
2458 SSL_CTX_set_msg_callback_arg(ctx, arg)
2459 SSL_set_msg_callback(ssl, cb)
2460 SSL_set_msg_callback_arg(ssl, arg)
2462 to request calling a callback function
2464 void cb(int write_p, int version, int content_type,
2465 const void *buf, size_t len, SSL *ssl, void *arg)
2467 whenever a protocol message has been completely received
2468 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2469 protocol version according to which the SSL library interprets
2470 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2471 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2472 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2473 specification (change_cipher_spec(20), alert(21), handshake(22)).
2474 'buf' and 'len' point to the actual message, 'ssl' to the
2475 SSL object, and 'arg' is the application-defined value set by
2476 SSL[_CTX]_set_msg_callback_arg().
2478 'openssl s_client' and 'openssl s_server' have new '-msg' options
2479 to enable a callback that displays all protocol messages.
2482 *) Change the shared library support so shared libraries are built as
2483 soon as the corresponding static library is finished, and thereby get
2484 openssl and the test programs linked against the shared library.
2485 This still only happens when the keyword "shard" has been given to
2486 the configuration scripts.
2488 NOTE: shared library support is still an experimental thing, and
2489 backward binary compatibility is still not guaranteed.
2490 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2492 *) Add support for Subject Information Access extension.
2493 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2495 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2496 additional bytes when new memory had to be allocated, not just
2497 when reusing an existing buffer.
2500 *) New command line and configuration option 'utf8' for the req command.
2501 This allows field values to be specified as UTF8 strings.
2504 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2505 runs for the former and machine-readable output for the latter.
2508 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2509 of the e-mail address in the DN (i.e., it will go into a certificate
2510 extension only). The new configuration file option 'email_in_dn = no'
2511 has the same effect.
2512 [Massimiliano Pala madwolf@openca.org]
2514 *) Change all functions with names starting with des_ to be starting
2515 with DES_ instead. Add wrappers that are compatible with libdes,
2516 but are named _ossl_old_des_*. Finally, add macros that map the
2517 des_* symbols to the corresponding _ossl_old_des_* if libdes
2518 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2519 desired, the des_* symbols will be mapped to DES_*, with one
2522 Since we provide two compatibility mappings, the user needs to
2523 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2524 compatibility is desired. The default (i.e., when that macro
2525 isn't defined) is OpenSSL 0.9.6c compatibility.
2527 There are also macros that enable and disable the support of old
2528 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2529 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2530 are defined, the default will apply: to support the old des routines.
2532 In either case, one must include openssl/des.h to get the correct
2533 definitions. Do not try to just include openssl/des_old.h, that
2536 NOTE: This is a major break of an old API into a new one. Software
2537 authors are encouraged to switch to the DES_ style functions. Some
2538 time in the future, des_old.h and the libdes compatibility functions
2539 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2540 default), and then completely removed.
2543 *) Test for certificates which contain unsupported critical extensions.
2544 If such a certificate is found during a verify operation it is
2545 rejected by default: this behaviour can be overridden by either
2546 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2547 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2548 X509_supported_extension() has also been added which returns 1 if a
2549 particular extension is supported.
2552 *) Modify the behaviour of EVP cipher functions in similar way to digests
2553 to retain compatibility with existing code.
2556 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2557 compatibility with existing code. In particular the 'ctx' parameter does
2558 not have to be to be initialized before the call to EVP_DigestInit() and
2559 it is tidied up after a call to EVP_DigestFinal(). New function
2560 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2561 EVP_MD_CTX_copy() changed to not require the destination to be
2562 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2563 requires the destination to be valid.
2565 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2566 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2569 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2570 so that complete 'Handshake' protocol structures are kept in memory
2571 instead of overwriting 'msg_type' and 'length' with 'body' data.
2574 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2575 [Massimo Santin via Richard Levitte]
2577 *) Major restructuring to the underlying ENGINE code. This includes
2578 reduction of linker bloat, separation of pure "ENGINE" manipulation
2579 (initialisation, etc) from functionality dealing with implementations
2580 of specific crypto iterfaces. This change also introduces integrated
2581 support for symmetric ciphers and digest implementations - so ENGINEs
2582 can now accelerate these by providing EVP_CIPHER and EVP_MD
2583 implementations of their own. This is detailed in crypto/engine/README
2584 as it couldn't be adequately described here. However, there are a few
2585 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2586 were changed in the original introduction of ENGINE code have now
2587 reverted back - the hooking from this code to ENGINE is now a good
2588 deal more passive and at run-time, operations deal directly with
2589 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2590 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2591 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2592 they were not being used by the framework as there is no concept of a
2593 BIGNUM_METHOD and they could not be generalised to the new
2594 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2595 ENGINE_cpy() has been removed as it cannot be consistently defined in
2599 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2602 *) Change mkdef.pl to sort symbols that get the same entry number,
2603 and make sure the automatically generated functions ERR_load_*
2604 become part of libeay.num as well.
2607 *) New function SSL_renegotiate_pending(). This returns true once
2608 renegotiation has been requested (either SSL_renegotiate() call
2609 or HelloRequest/ClientHello receveived from the peer) and becomes
2610 false once a handshake has been completed.
2611 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2612 sends a HelloRequest, but does not ensure that a handshake takes
2613 place. SSL_renegotiate_pending() is useful for checking if the
2614 client has followed the request.)
2617 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2618 By default, clients may request session resumption even during
2619 renegotiation (if session ID contexts permit); with this option,
2620 session resumption is possible only in the first handshake.
2622 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2623 more bits available for options that should not be part of
2624 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2627 *) Add some demos for certificate and certificate request creation.
2630 *) Make maximum certificate chain size accepted from the peer application
2631 settable (SSL*_get/set_max_cert_list()), as proposed by
2632 "Douglas E. Engert" <deengert@anl.gov>.
2635 *) Add support for shared libraries for Unixware-7
2636 (Boyd Lynn Gerber <gerberb@zenez.com>).
2639 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2640 be done prior to destruction. Use this to unload error strings from
2641 ENGINEs that load their own error strings. NB: This adds two new API
2642 functions to "get" and "set" this destroy handler in an ENGINE.
2645 *) Alter all existing ENGINE implementations (except "openssl" and
2646 "openbsd") to dynamically instantiate their own error strings. This
2647 makes them more flexible to be built both as statically-linked ENGINEs
2648 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2649 Also, add stub code to each that makes building them as self-contained
2650 shared-libraries easier (see README.ENGINE).
2653 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2654 implementations into applications that are completely implemented in
2655 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2656 commands that can be used to configure what shared-library to load and
2657 to control aspects of the way it is handled. Also, made an update to
2658 the README.ENGINE file that brings its information up-to-date and
2659 provides some information and instructions on the "dynamic" ENGINE
2660 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2663 *) Make it possible to unload ranges of ERR strings with a new
2664 "ERR_unload_strings" function.
2667 *) Add a copy() function to EVP_MD.
2670 *) Make EVP_MD routines take a context pointer instead of just the
2671 md_data void pointer.
2674 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2675 that the digest can only process a single chunk of data
2676 (typically because it is provided by a piece of
2677 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2678 is only going to provide a single chunk of data, and hence the
2679 framework needn't accumulate the data for oneshot drivers.
2682 *) As with "ERR", make it possible to replace the underlying "ex_data"
2683 functions. This change also alters the storage and management of global
2684 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2685 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2686 index counters. The API functions that use this state have been changed
2687 to take a "class_index" rather than pointers to the class's local STACK
2688 and counter, and there is now an API function to dynamically create new
2689 classes. This centralisation allows us to (a) plug a lot of the
2690 thread-safety problems that existed, and (b) makes it possible to clean
2691 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2692 such data would previously have always leaked in application code and
2693 workarounds were in place to make the memory debugging turn a blind eye
2694 to it. Application code that doesn't use this new function will still
2695 leak as before, but their memory debugging output will announce it now
2696 rather than letting it slide.
2698 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2699 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2700 has a return value to indicate success or failure.
2703 *) Make it possible to replace the underlying "ERR" functions such that the
2704 global state (2 LHASH tables and 2 locks) is only used by the "default"
2705 implementation. This change also adds two functions to "get" and "set"
2706 the implementation prior to it being automatically set the first time
2707 any other ERR function takes place. Ie. an application can call "get",
2708 pass the return value to a module it has just loaded, and that module
2709 can call its own "set" function using that value. This means the
2710 module's "ERR" operations will use (and modify) the error state in the
2711 application and not in its own statically linked copy of OpenSSL code.
2714 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2715 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2716 the operation, and provides a more encapsulated way for external code
2717 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2718 to use these functions rather than manually incrementing the counts.
2720 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2723 *) Add EVP test program.
2726 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2729 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2730 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2731 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2732 These allow a CRL to be built without having to access X509_CRL fields
2733 directly. Modify 'ca' application to use new functions.
2736 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2737 bug workarounds. Rollback attack detection is a security feature.
2738 The problem will only arise on OpenSSL servers when TLSv1 is not
2739 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2740 Software authors not wanting to support TLSv1 will have special reasons
2741 for their choice and can explicitly enable this option.
2742 [Bodo Moeller, Lutz Jaenicke]
2744 *) Rationalise EVP so it can be extended: don't include a union of
2745 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2746 (similar to those existing for EVP_CIPHER_CTX).
2751 EVP_MD_CTX_init(&md); /* new function call */
2752 EVP_DigestInit(&md, EVP_sha1());
2753 EVP_DigestUpdate(&md, in, len);
2754 EVP_DigestFinal(&md, out, NULL);
2755 EVP_MD_CTX_cleanup(&md); /* new function call */
2759 *) Make DES key schedule conform to the usual scheme, as well as
2760 correcting its structure. This means that calls to DES functions
2761 now have to pass a pointer to a des_key_schedule instead of a
2762 plain des_key_schedule (which was actually always a pointer
2765 des_key_schedule ks;
2767 des_set_key_checked(..., &ks);
2768 des_ncbc_encrypt(..., &ks, ...);
2770 (Note that a later change renames 'des_...' into 'DES_...'.)
2773 *) Initial reduction of linker bloat: the use of some functions, such as
2774 PEM causes large amounts of unused functions to be linked in due to
2775 poor organisation. For example pem_all.c contains every PEM function
2776 which has a knock on effect of linking in large amounts of (unused)
2777 ASN1 code. Grouping together similar functions and splitting unrelated
2778 functions prevents this.
2781 *) Cleanup of EVP macros.
2784 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2785 correct _ecb suffix.
2788 *) Add initial OCSP responder support to ocsp application. The
2789 revocation information is handled using the text based index
2790 use by the ca application. The responder can either handle
2791 requests generated internally, supplied in files (for example
2792 via a CGI script) or using an internal minimal server.
2795 *) Add configuration choices to get zlib compression for TLS.
2798 *) Changes to Kerberos SSL for RFC 2712 compliance:
2799 1. Implemented real KerberosWrapper, instead of just using
2800 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2801 2. Implemented optional authenticator field of KerberosWrapper.
2803 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2804 and authenticator structs; see crypto/krb5/.
2806 Generalized Kerberos calls to support multiple Kerberos libraries.
2807 [Vern Staats <staatsvr@asc.hpc.mil>,
2808 Jeffrey Altman <jaltman@columbia.edu>
2809 via Richard Levitte]
2811 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2812 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2813 values for each of the key sizes rather than having just
2814 parameters (and 'speed' generating keys each time).
2817 *) Speed up EVP routines.
2820 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2821 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2822 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2823 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2825 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2826 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2827 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2830 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2832 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2835 *) Added the OS2-EMX target.
2836 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2838 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2839 to support NCONF routines in extension code. New function CONF_set_nconf()
2840 to allow functions which take an NCONF to also handle the old LHASH
2841 structure: this means that the old CONF compatible routines can be
2842 retained (in particular wrt extensions) without having to duplicate the
2843 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2846 *) Enhance the general user interface with mechanisms for inner control
2847 and with possibilities to have yes/no kind of prompts.
2850 *) Change all calls to low level digest routines in the library and
2851 applications to use EVP. Add missing calls to HMAC_cleanup() and
2852 don't assume HMAC_CTX can be copied using memcpy().
2853 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2855 *) Add the possibility to control engines through control names but with
2856 arbitrary arguments instead of just a string.
2857 Change the key loaders to take a UI_METHOD instead of a callback
2858 function pointer. NOTE: this breaks binary compatibility with earlier
2859 versions of OpenSSL [engine].
2860 Adapt the nCipher code for these new conditions and add a card insertion
2864 *) Enhance the general user interface with mechanisms to better support
2865 dialog box interfaces, application-defined prompts, the possibility
2866 to use defaults (for example default passwords from somewhere else)
2867 and interrupts/cancellations.
2870 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2871 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2874 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2875 tidy up some unnecessarily weird code in 'sk_new()').
2876 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2878 *) Change the key loading routines for ENGINEs to use the same kind
2879 callback (pem_password_cb) as all other routines that need this
2883 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2884 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2885 than this minimum value is recommended.
2888 *) New random seeder for OpenVMS, using the system process statistics
2889 that are easily reachable.
2892 *) Windows apparently can't transparently handle global
2893 variables defined in DLLs. Initialisations such as:
2895 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2897 wont compile. This is used by the any applications that need to
2898 declare their own ASN1 modules. This was fixed by adding the option
2899 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2900 needed for static libraries under Win32.
2903 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2904 setting of purpose and trust fields. New X509_STORE trust and
2905 purpose functions and tidy up setting in other SSL functions.
2908 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2909 structure. These are inherited by X509_STORE_CTX when it is
2910 initialised. This allows various defaults to be set in the
2911 X509_STORE structure (such as flags for CRL checking and custom
2912 purpose or trust settings) for functions which only use X509_STORE_CTX
2913 internally such as S/MIME.
2915 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2916 trust settings if they are not set in X509_STORE. This allows X509_STORE
2917 purposes and trust (in S/MIME for example) to override any set by default.
2919 Add command line options for CRL checking to smime, s_client and s_server
2923 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2924 are set then the CRL is looked up in the X509_STORE structure and
2925 its validity and signature checked, then if the certificate is found
2926 in the CRL the verify fails with a revoked error.
2928 Various new CRL related callbacks added to X509_STORE_CTX structure.
2930 Command line options added to 'verify' application to support this.
2932 This needs some additional work, such as being able to handle multiple
2933 CRLs with different times, extension based lookup (rather than just
2934 by subject name) and ultimately more complete V2 CRL extension
2938 *) Add a general user interface API (crypto/ui/). This is designed
2939 to replace things like des_read_password and friends (backward
2940 compatibility functions using this new API are provided).
2941 The purpose is to remove prompting functions from the DES code
2942 section as well as provide for prompting through dialog boxes in
2943 a window system and the like.
2946 *) Add "ex_data" support to ENGINE so implementations can add state at a
2947 per-structure level rather than having to store it globally.
2950 *) Make it possible for ENGINE structures to be copied when retrieved by
2951 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2952 This causes the "original" ENGINE structure to act like a template,
2953 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2954 operational state can be localised to each ENGINE structure, despite the
2955 fact they all share the same "methods". New ENGINE structures returned in
2956 this case have no functional references and the return value is the single
2957 structural reference. This matches the single structural reference returned
2958 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2962 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2963 needs to match any other type at all we need to manually clear the
2967 *) Changes to the "openssl engine" utility to include;
2968 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2969 about an ENGINE's available control commands.
2970 - executing control commands from command line arguments using the
2971 '-pre' and '-post' switches. '-post' is only used if '-t' is
2972 specified and the ENGINE is successfully initialised. The syntax for
2973 the individual commands are colon-separated, for example;
2974 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2977 *) New dynamic control command support for ENGINEs. ENGINEs can now
2978 declare their own commands (numbers), names (strings), descriptions,
2979 and input types for run-time discovery by calling applications. A
2980 subset of these commands are implicitly classed as "executable"
2981 depending on their input type, and only these can be invoked through
2982 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2983 can be based on user input, config files, etc). The distinction is
2984 that "executable" commands cannot return anything other than a boolean
2985 result and can only support numeric or string input, whereas some
2986 discoverable commands may only be for direct use through
2987 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2988 pointers, or other custom uses. The "executable" commands are to
2989 support parameterisations of ENGINE behaviour that can be
2990 unambiguously defined by ENGINEs and used consistently across any
2991 OpenSSL-based application. Commands have been added to all the
2992 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2993 control over shared-library paths without source code alterations.
2996 *) Changed all ENGINE implementations to dynamically allocate their
2997 ENGINEs rather than declaring them statically. Apart from this being
2998 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2999 this also allows the implementations to compile without using the
3000 internal engine_int.h header.
3003 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3004 'const' value. Any code that should be able to modify a RAND_METHOD
3005 should already have non-const pointers to it (ie. they should only
3006 modify their own ones).
3009 *) Made a variety of little tweaks to the ENGINE code.
3010 - "atalla" and "ubsec" string definitions were moved from header files
3011 to C code. "nuron" string definitions were placed in variables
3012 rather than hard-coded - allowing parameterisation of these values
3013 later on via ctrl() commands.
3014 - Removed unused "#if 0"'d code.
3015 - Fixed engine list iteration code so it uses ENGINE_free() to release
3016 structural references.
3017 - Constified the RAND_METHOD element of ENGINE structures.
3018 - Constified various get/set functions as appropriate and added
3019 missing functions (including a catch-all ENGINE_cpy that duplicates
3020 all ENGINE values onto a new ENGINE except reference counts/state).
3021 - Removed NULL parameter checks in get/set functions. Setting a method
3022 or function to NULL is a way of cancelling out a previously set
3023 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3024 and doesn't justify the extra error symbols and code.
3025 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3026 flags from engine_int.h to engine.h.
3027 - Changed prototypes for ENGINE handler functions (init(), finish(),
3028 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3031 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3032 to the algorithm using long division. The binary algorithm can be
3033 used only if the modulus is odd. On 32-bit systems, it is faster
3034 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3035 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3036 up to 450 bits. In 64-bit environments, the binary algorithm
3037 appears to be advantageous for much longer moduli; here we use it
3038 for moduli up to 2048 bits.
3041 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3042 could not support the combine flag in choice fields.
3045 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3046 extensions from a certificate request to the certificate.
3049 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3050 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3051 file: this allows the display of the certificate about to be
3052 signed to be customised, to allow certain fields to be included
3053 or excluded and extension details. The old system didn't display
3054 multicharacter strings properly, omitted fields not in the policy
3055 and couldn't display additional details such as extensions.
3058 *) Function EC_POINTs_mul for multiple scalar multiplication
3059 of an arbitrary number of elliptic curve points
3060 \sum scalars[i]*points[i],
3061 optionally including the generator defined for the EC_GROUP:
3062 scalar*generator + \sum scalars[i]*points[i].
3064 EC_POINT_mul is a simple wrapper function for the typical case
3065 that the point list has just one item (besides the optional
3069 *) First EC_METHODs for curves over GF(p):
3071 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3072 operations and provides various method functions that can also
3073 operate with faster implementations of modular arithmetic.
3075 EC_GFp_mont_method() reuses most functions that are part of
3076 EC_GFp_simple_method, but uses Montgomery arithmetic.
3078 [Bodo Moeller; point addition and point doubling
3079 implementation directly derived from source code provided by
3080 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3082 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3083 crypto/ec/ec_lib.c):
3085 Curves are EC_GROUP objects (with an optional group generator)
3086 based on EC_METHODs that are built into the library.
3088 Points are EC_POINT objects based on EC_GROUP objects.
3090 Most of the framework would be able to handle curves over arbitrary
3091 finite fields, but as there are no obvious types for fields other
3092 than GF(p), some functions are limited to that for now.
3095 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3096 that the file contains a complete HTTP response.
3099 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3100 change the def and num file printf format specifier from "%-40sXXX"
3101 to "%-39s XXX". The latter will always guarantee a space after the
3102 field while the former will cause them to run together if the field
3103 is 40 of more characters long.
3106 *) Constify the cipher and digest 'method' functions and structures
3107 and modify related functions to take constant EVP_MD and EVP_CIPHER
3111 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3112 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3115 *) Modify EVP_Digest*() routines so they now return values. Although the
3116 internal software routines can never fail additional hardware versions
3120 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3122 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3123 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3126 ERR_R_NESTED_ASN1_ERROR
3128 ERR_R_MISSING_ASN1_EOS
3129 were 4 .. 9, conflicting with
3130 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3132 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3133 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3135 Add new error code 'ERR_R_INTERNAL_ERROR'.
3138 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3142 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3143 sets the subject name for a new request or supersedes the
3144 subject name in a given request. Formats that can be parsed are
3145 'CN=Some Name, OU=myOU, C=IT'
3147 'CN=Some Name/OU=myOU/C=IT'.
3149 Add options '-batch' and '-verbose' to 'openssl req'.
3150 [Massimiliano Pala <madwolf@hackmasters.net>]
3152 *) Introduce the possibility to access global variables through
3153 functions on platform were that's the best way to handle exporting
3154 global variables in shared libraries. To enable this functionality,
3155 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3156 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3157 is normally done by Configure or something similar).
3159 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3160 in the source file (foo.c) like this:
3162 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3163 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3165 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3166 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3168 OPENSSL_DECLARE_GLOBAL(int,foo);
3169 #define foo OPENSSL_GLOBAL_REF(foo)
3170 OPENSSL_DECLARE_GLOBAL(double,bar);
3171 #define bar OPENSSL_GLOBAL_REF(bar)
3173 The #defines are very important, and therefore so is including the
3174 header file everywhere where the defined globals are used.
3176 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3177 of ASN.1 items, but that structure is a bit different.
3179 The largest change is in util/mkdef.pl which has been enhanced with
3180 better and easier to understand logic to choose which symbols should
3181 go into the Windows .def files as well as a number of fixes and code
3182 cleanup (among others, algorithm keywords are now sorted
3183 lexicographically to avoid constant rewrites).
3186 *) In BN_div() keep a copy of the sign of 'num' before writing the
3187 result to 'rm' because if rm==num the value will be overwritten
3188 and produce the wrong result if 'num' is negative: this caused
3189 problems with BN_mod() and BN_nnmod().
3192 *) Function OCSP_request_verify(). This checks the signature on an
3193 OCSP request and verifies the signer certificate. The signer
3194 certificate is just checked for a generic purpose and OCSP request
3198 *) Add OCSP_check_validity() function to check the validity of OCSP
3199 responses. OCSP responses are prepared in real time and may only
3200 be a few seconds old. Simply checking that the current time lies
3201 between thisUpdate and nextUpdate max reject otherwise valid responses
3202 caused by either OCSP responder or client clock inaccuracy. Instead
3203 we allow thisUpdate and nextUpdate to fall within a certain period of
3204 the current time. The age of the response can also optionally be
3205 checked. Two new options -validity_period and -status_age added to
3209 *) If signature or public key algorithm is unrecognized print out its
3210 OID rather that just UNKNOWN.
3213 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3214 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3215 ID to be generated from the issuer certificate alone which can then be
3216 passed to OCSP_id_issuer_cmp().
3219 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3220 ASN1 modules to export functions returning ASN1_ITEM pointers
3221 instead of the ASN1_ITEM structures themselves. This adds several
3222 new macros which allow the underlying ASN1 function/structure to
3223 be accessed transparently. As a result code should not use ASN1_ITEM
3224 references directly (such as &X509_it) but instead use the relevant
3225 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3226 use of the new ASN1 code on platforms where exporting structures
3227 is problematical (for example in shared libraries) but exporting
3228 functions returning pointers to structures is not.
3231 *) Add support for overriding the generation of SSL/TLS session IDs.
3232 These callbacks can be registered either in an SSL_CTX or per SSL.
3233 The purpose of this is to allow applications to control, if they wish,
3234 the arbitrary values chosen for use as session IDs, particularly as it
3235 can be useful for session caching in multiple-server environments. A
3236 command-line switch for testing this (and any client code that wishes
3237 to use such a feature) has been added to "s_server".
3238 [Geoff Thorpe, Lutz Jaenicke]
3240 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3241 of the form '#if defined(...) || defined(...) || ...' and
3242 '#if !defined(...) && !defined(...) && ...'. This also avoids
3243 the growing number of special cases it was previously handling.
3246 *) Make all configuration macros available for application by making
3247 sure they are available in opensslconf.h, by giving them names starting
3248 with "OPENSSL_" to avoid conflicts with other packages and by making
3249 sure e_os2.h will cover all platform-specific cases together with
3251 Additionally, it is now possible to define configuration/platform-
3252 specific names (called "system identities"). In the C code, these
3253 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3254 macro with the name beginning with "OPENSSL_SYS_", which is determined
3255 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3259 *) New option -set_serial to 'req' and 'x509' this allows the serial
3260 number to use to be specified on the command line. Previously self
3261 signed certificates were hard coded with serial number 0 and the
3262 CA options of 'x509' had to use a serial number in a file which was
3266 *) New options to 'ca' utility to support V2 CRL entry extensions.
3267 Currently CRL reason, invalidity date and hold instruction are
3268 supported. Add new CRL extensions to V3 code and some new objects.
3271 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3272 disable standard block padding (aka PKCS#5 padding) in the EVP
3273 API, which was previously mandatory. This means that the data is
3274 not padded in any way and so the total length much be a multiple
3275 of the block size, otherwise an error occurs.
3278 *) Initial (incomplete) OCSP SSL support.
3281 *) New function OCSP_parse_url(). This splits up a URL into its host,
3282 port and path components: primarily to parse OCSP URLs. New -url
3283 option to ocsp utility.
3286 *) New nonce behavior. The return value of OCSP_check_nonce() now
3287 reflects the various checks performed. Applications can decide
3288 whether to tolerate certain situations such as an absent nonce
3289 in a response when one was present in a request: the ocsp application
3290 just prints out a warning. New function OCSP_add1_basic_nonce()
3291 this is to allow responders to include a nonce in a response even if
3292 the request is nonce-less.
3295 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3296 skipped when using openssl x509 multiple times on a single input file,
3297 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3300 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3301 set string type: to handle setting ASN1_TIME structures. Fix ca
3302 utility to correctly initialize revocation date of CRLs.
3305 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3306 the clients preferred ciphersuites and rather use its own preferences.
3307 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3308 Internet Explorer by ensuring unchanged hash method during stepup.
3309 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3312 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3313 to aes and add a new 'exist' option to print out symbols that don't
3317 *) Additional options to ocsp utility to allow flags to be set and
3318 additional certificates supplied.
3321 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3322 OCSP client a number of certificate to only verify the response
3326 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3327 handle the new API. Currently only ECB, CBC modes supported. Add new
3330 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3331 Encryption Standard (AES) Ciphersuites for Transport Layer
3332 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3333 not enabled by default and were not part of the "ALL" ciphersuite
3334 alias because they were not yet official; they could be
3335 explicitly requested by specifying the "AESdraft" ciphersuite
3336 group alias. In the final release of OpenSSL 0.9.7, the group
3337 alias is called "AES" and is part of "ALL".)
3338 [Ben Laurie, Steve Henson, Bodo Moeller]
3340 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3341 request to response.
3344 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3345 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3346 extract information from a certificate request. OCSP_response_create()
3347 creates a response and optionally adds a basic response structure.
3348 OCSP_basic_add1_status() adds a complete single response to a basic
3349 response and returns the OCSP_SINGLERESP structure just added (to allow
3350 extensions to be included for example). OCSP_basic_add1_cert() adds a
3351 certificate to a basic response and OCSP_basic_sign() signs a basic
3352 response with various flags. New helper functions ASN1_TIME_check()
3353 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3354 (converts ASN1_TIME to GeneralizedTime).
3357 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3358 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3359 structure from a certificate. X509_pubkey_digest() digests the public_key
3360 contents: this is used in various key identifiers.
3363 *) Make sk_sort() tolerate a NULL argument.
3364 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3366 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3367 passed by the function are trusted implicitly. If any of them signed the
3368 response then it is assumed to be valid and is not verified.
3371 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3372 to data. This was previously part of the PKCS7 ASN1 code. This
3373 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3374 [Steve Henson, reported by Kenneth R. Robinette
3375 <support@securenetterm.com>]
3377 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3378 routines: without these tracing memory leaks is very painful.
3379 Fix leaks in PKCS12 and PKCS7 routines.
3382 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3383 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3384 effectively meant GeneralizedTime would never be used. Now it
3385 is initialised to -1 but X509_time_adj() now has to check the value
3386 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3387 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3388 [Steve Henson, reported by Kenneth R. Robinette
3389 <support@securenetterm.com>]
3391 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3392 result in a zero length in the ASN1_INTEGER structure which was
3393 not consistent with the structure when d2i_ASN1_INTEGER() was used
3394 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3395 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3396 where it did not print out a minus for negative ASN1_INTEGER.
3399 *) Add summary printout to ocsp utility. The various functions which
3400 convert status values to strings have been renamed to:
3401 OCSP_response_status_str(), OCSP_cert_status_str() and
3402 OCSP_crl_reason_str() and are no longer static. New options
3403 to verify nonce values and to disable verification. OCSP response
3404 printout format cleaned up.
3407 *) Add additional OCSP certificate checks. These are those specified
3408 in RFC2560. This consists of two separate checks: the CA of the
3409 certificate being checked must either be the OCSP signer certificate
3410 or the issuer of the OCSP signer certificate. In the latter case the
3411 OCSP signer certificate must contain the OCSP signing extended key
3412 usage. This check is performed by attempting to match the OCSP
3413 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3414 in the OCSP_CERTID structures of the response.
3417 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3418 and related routines. This uses the standard OpenSSL certificate
3419 verify routines to perform initial checks (just CA validity) and
3420 to obtain the certificate chain. Then additional checks will be
3421 performed on the chain. Currently the root CA is checked to see
3422 if it is explicitly trusted for OCSP signing. This is used to set
3423 a root CA as a global signing root: that is any certificate that
3424 chains to that CA is an acceptable OCSP signing certificate.
3427 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3428 extensions from a separate configuration file.
3429 As when reading extensions from the main configuration file,
3430 the '-extensions ...' option may be used for specifying the
3432 [Massimiliano Pala <madwolf@comune.modena.it>]
3434 *) New OCSP utility. Allows OCSP requests to be generated or
3435 read. The request can be sent to a responder and the output
3436 parsed, outputed or printed in text form. Not complete yet:
3437 still needs to check the OCSP response validity.
3440 *) New subcommands for 'openssl ca':
3441 'openssl ca -status <serial>' prints the status of the cert with
3442 the given serial number (according to the index file).
3443 'openssl ca -updatedb' updates the expiry status of certificates
3445 [Massimiliano Pala <madwolf@comune.modena.it>]
3447 *) New '-newreq-nodes' command option to CA.pl. This is like
3448 '-newreq', but calls 'openssl req' with the '-nodes' option
3449 so that the resulting key is not encrypted.
3450 [Damien Miller <djm@mindrot.org>]
3452 *) New configuration for the GNU Hurd.
3453 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3455 *) Initial code to implement OCSP basic response verify. This
3456 is currently incomplete. Currently just finds the signer's
3457 certificate and verifies the signature on the response.
3460 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3461 value of OPENSSLDIR. This is available via the new '-d' option
3462 to 'openssl version', and is also included in 'openssl version -a'.
3465 *) Allowing defining memory allocation callbacks that will be given
3466 file name and line number information in additional arguments
3467 (a const char* and an int). The basic functionality remains, as
3468 well as the original possibility to just replace malloc(),
3469 realloc() and free() by functions that do not know about these
3470 additional arguments. To register and find out the current
3471 settings for extended allocation functions, the following
3472 functions are provided:
3474 CRYPTO_set_mem_ex_functions
3475 CRYPTO_set_locked_mem_ex_functions
3476 CRYPTO_get_mem_ex_functions
3477 CRYPTO_get_locked_mem_ex_functions
3479 These work the same way as CRYPTO_set_mem_functions and friends.
3480 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3481 extended allocation function is enabled.
3482 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3483 a conventional allocation function is enabled.
3484 [Richard Levitte, Bodo Moeller]
3486 *) Finish off removing the remaining LHASH function pointer casts.
3487 There should no longer be any prototype-casting required when using
3488 the LHASH abstraction, and any casts that remain are "bugs". See
3489 the callback types and macros at the head of lhash.h for details
3490 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3493 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3494 If /dev/[u]random devices are not available or do not return enough
3495 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3497 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3498 /etc/entropy will be queried once each in this sequence, quering stops
3499 when enough entropy was collected without querying more sockets.
3502 *) Change the Unix RAND_poll() variant to be able to poll several
3503 random devices, as specified by DEVRANDOM, until a sufficient amount
3504 of data has been collected. We spend at most 10 ms on each file
3505 (select timeout) and read in non-blocking mode. DEVRANDOM now
3506 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3507 (previously it was just the string "/dev/urandom"), so on typical
3508 platforms the 10 ms delay will never occur.
3509 Also separate out the Unix variant to its own file, rand_unix.c.
3510 For VMS, there's a currently-empty rand_vms.c.
3513 *) Move OCSP client related routines to ocsp_cl.c. These
3514 provide utility functions which an application needing
3515 to issue a request to an OCSP responder and analyse the
3516 response will typically need: as opposed to those which an
3517 OCSP responder itself would need which will be added later.
3519 OCSP_request_sign() signs an OCSP request with an API similar
3520 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3521 response. OCSP_response_get1_basic() extracts basic response
3522 from response. OCSP_resp_find_status(): finds and extracts status
3523 information from an OCSP_CERTID structure (which will be created
3524 when the request structure is built). These are built from lower
3525 level functions which work on OCSP_SINGLERESP structures but
3526 wont normally be used unless the application wishes to examine
3527 extensions in the OCSP response for example.
3529 Replace nonce routines with a pair of functions.
3530 OCSP_request_add1_nonce() adds a nonce value and optionally
3531 generates a random value. OCSP_check_nonce() checks the
3532 validity of the nonce in an OCSP response.
3535 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3536 This doesn't copy the supplied OCSP_CERTID and avoids the
3537 need to free up the newly created id. Change return type
3538 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3539 This can then be used to add extensions to the request.
3540 Deleted OCSP_request_new(), since most of its functionality
3541 is now in OCSP_REQUEST_new() (and the case insensitive name
3542 clash) apart from the ability to set the request name which
3543 will be added elsewhere.
3546 *) Update OCSP API. Remove obsolete extensions argument from
3547 various functions. Extensions are now handled using the new
3548 OCSP extension code. New simple OCSP HTTP function which
3549 can be used to send requests and parse the response.
3552 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3553 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3554 uses the special reorder version of SET OF to sort the attributes
3555 and reorder them to match the encoded order. This resolves a long
3556 standing problem: a verify on a PKCS7 structure just after signing
3557 it used to fail because the attribute order did not match the
3558 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3559 it uses the received order. This is necessary to tolerate some broken
3560 software that does not order SET OF. This is handled by encoding
3561 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3562 to produce the required SET OF.
3565 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3566 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3567 files to get correct declarations of the ASN.1 item variables.
3570 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3571 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3572 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3573 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3574 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3575 ASN1_ITEM and no wrapper functions.
3578 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3579 replace the old function pointer based I/O routines. Change most of
3580 the *_d2i_bio() and *_d2i_fp() functions to use these.
3583 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3584 lines, recognice more "algorithms" that can be deselected, and make
3585 it complain about algorithm deselection that isn't recognised.
3588 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3589 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3590 to use new functions. Add NO_ASN1_OLD which can be set to remove
3591 some old style ASN1 functions: this can be used to determine if old
3592 code will still work when these eventually go away.
3595 *) New extension functions for OCSP structures, these follow the
3596 same conventions as certificates and CRLs.
3599 *) New function X509V3_add1_i2d(). This automatically encodes and
3600 adds an extension. Its behaviour can be customised with various
3601 flags to append, replace or delete. Various wrappers added for
3602 certifcates and CRLs.
3605 *) Fix to avoid calling the underlying ASN1 print routine when
3606 an extension cannot be parsed. Correct a typo in the
3607 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3610 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3611 entries for variables.
3614 *) Add functionality to apps/openssl.c for detecting locking
3615 problems: As the program is single-threaded, all we have
3616 to do is register a locking callback using an array for
3617 storing which locks are currently held by the program.
3620 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3621 SSL_get_ex_data_X509_STORE_idx(), which is used in
3622 ssl_verify_cert_chain() and thus can be called at any time
3623 during TLS/SSL handshakes so that thread-safety is essential.
3624 Unfortunately, the ex_data design is not at all suited
3625 for multi-threaded use, so it probably should be abolished.
3628 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3629 [Broadcom, tweaked and integrated by Geoff Thorpe]
3631 *) Move common extension printing code to new function
3632 X509V3_print_extensions(). Reorganise OCSP print routines and
3633 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3636 *) New function X509_signature_print() to remove duplication in some
3640 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3641 set (this was treated exactly the same as SET OF previously). This
3642 is used to reorder the STACK representing the structure to match the
3643 encoding. This will be used to get round a problem where a PKCS7
3644 structure which was signed could not be verified because the STACK
3645 order did not reflect the encoded order.
3648 *) Reimplement the OCSP ASN1 module using the new code.
3651 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3652 for its ASN1 operations. The old style function pointers still exist
3653 for now but they will eventually go away.
3656 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3657 completely replaces the old ASN1 functionality with a table driven
3658 encoder and decoder which interprets an ASN1_ITEM structure describing
3659 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3660 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3661 has also been converted to the new form.
3664 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3665 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3666 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3667 for negative moduli.
3670 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3671 of not touching the result's sign bit.
3674 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3678 *) Changed the LHASH code to use prototypes for callbacks, and created
3679 macros to declare and implement thin (optionally static) functions
3680 that provide type-safety and avoid function pointer casting for the
3681 type-specific callbacks.
3684 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3686 [Veers Staats <staatsvr@asc.hpc.mil>,
3687 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3689 *) Reformat the FAQ so the different questions and answers can be divided
3690 in sections depending on the subject.
3693 *) Have the zlib compression code load ZLIB.DLL dynamically under
3697 *) New function BN_mod_sqrt for computing square roots modulo a prime
3698 (using the probabilistic Tonelli-Shanks algorithm unless
3699 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3700 be handled deterministically).
3701 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3703 *) Make BN_mod_inverse faster by explicitly handling small quotients
3704 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3705 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3708 *) New function BN_kronecker.
3711 *) Fix BN_gcd so that it works on negative inputs; the result is
3712 positive unless both parameters are zero.
3713 Previously something reasonably close to an infinite loop was
3714 possible because numbers could be growing instead of shrinking
3715 in the implementation of Euclid's algorithm.
3718 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3719 sign of the number in question.
3721 Fix BN_is_word(a,w) to work correctly for w == 0.
3723 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3724 because its test if the absolute value of 'a' equals 'w'.
3725 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3726 it exists mostly for use in the implementations of BN_is_zero(),
3727 BN_is_one(), and BN_is_word().
3730 *) New function BN_swap.
3733 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3734 the exponentiation functions are more likely to produce reasonable
3735 results on negative inputs.
3738 *) Change BN_mod_mul so that the result is always non-negative.
3739 Previously, it could be negative if one of the factors was negative;
3740 I don't think anyone really wanted that behaviour.
3743 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3744 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3745 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3746 and add new functions:
3755 BN_mod_lshift1_quick
3759 These functions always generate non-negative results.
3761 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3762 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3764 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3765 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3766 be reduced modulo m.
3767 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3770 The following entry accidentily appeared in the CHANGES file
3771 distributed with OpenSSL 0.9.7. The modifications described in
3772 it do *not* apply to OpenSSL 0.9.7.
3774 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3775 was actually never needed) and in BN_mul(). The removal in BN_mul()
3776 required a small change in bn_mul_part_recursive() and the addition
3777 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3778 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3779 bn_sub_words() and bn_add_words() except they take arrays with
3784 *) In 'openssl passwd', verify passwords read from the terminal
3785 unless the '-salt' option is used (which usually means that
3786 verification would just waste user's time since the resulting
3787 hash is going to be compared with some given password hash)
3788 or the new '-noverify' option is used.
3790 This is an incompatible change, but it does not affect
3791 non-interactive use of 'openssl passwd' (passwords on the command
3792 line, '-stdin' option, '-in ...' option) and thus should not
3796 *) Remove all references to RSAref, since there's no more need for it.
3799 *) Make DSO load along a path given through an environment variable
3800 (SHLIB_PATH) with shl_load().
3803 *) Constify the ENGINE code as a result of BIGNUM constification.
3804 Also constify the RSA code and most things related to it. In a
3805 few places, most notable in the depth of the ASN.1 code, ugly
3806 casts back to non-const were required (to be solved at a later
3810 *) Make it so the openssl application has all engines loaded by default.
3813 *) Constify the BIGNUM routines a little more.
3816 *) Add the following functions:
3818 ENGINE_load_cswift()
3820 ENGINE_load_atalla()
3822 ENGINE_load_builtin_engines()
3824 That way, an application can itself choose if external engines that
3825 are built-in in OpenSSL shall ever be used or not. The benefit is
3826 that applications won't have to be linked with libdl or other dso
3827 libraries unless it's really needed.
3829 Changed 'openssl engine' to load all engines on demand.
3830 Changed the engine header files to avoid the duplication of some
3831 declarations (they differed!).
3834 *) 'openssl engine' can now list capabilities.
3837 *) Better error reporting in 'openssl engine'.
3840 *) Never call load_dh_param(NULL) in s_server.
3843 *) Add engine application. It can currently list engines by name and
3844 identity, and test if they are actually available.
3847 *) Improve RPM specification file by forcing symbolic linking and making
3848 sure the installed documentation is also owned by root.root.
3849 [Damien Miller <djm@mindrot.org>]
3851 *) Give the OpenSSL applications more possibilities to make use of
3852 keys (public as well as private) handled by engines.
3855 *) Add OCSP code that comes from CertCo.
3858 *) Add VMS support for the Rijndael code.
3861 *) Added untested support for Nuron crypto accelerator.
3864 *) Add support for external cryptographic devices. This code was
3865 previously distributed separately as the "engine" branch.
3866 [Geoff Thorpe, Richard Levitte]
3868 *) Rework the filename-translation in the DSO code. It is now possible to
3869 have far greater control over how a "name" is turned into a filename
3870 depending on the operating environment and any oddities about the
3871 different shared library filenames on each system.
3874 *) Support threads on FreeBSD-elf in Configure.
3877 *) Fix for SHA1 assembly problem with MASM: it produces
3878 warnings about corrupt line number information when assembling
3879 with debugging information. This is caused by the overlapping
3881 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3884 NCONF_get_number() has no error checking at all. As a replacement,
3885 NCONF_get_number_e() is defined (_e for "error checking") and is
3886 promoted strongly. The old NCONF_get_number is kept around for
3887 binary backward compatibility.
3888 Make it possible for methods to load from something other than a BIO,
3889 by providing a function pointer that is given a name instead of a BIO.
3890 For example, this could be used to load configuration data from an
3894 *) Fix for non blocking accept BIOs. Added new I/O special reason
3895 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3896 with non blocking I/O was not possible because no retry code was
3897 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3901 *) Added the beginnings of Rijndael support.
3904 *) Fix for bug in DirectoryString mask setting. Add support for
3905 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3906 to allow certificate printing to more controllable, additional
3907 'certopt' option to 'x509' to allow new printing options to be
3911 *) Clean old EAY MD5 hack from e_os.h.
3914 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3916 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3917 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3918 [Joe Orton, Steve Henson]
3920 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3922 *) Fix additional bug revealed by the NISCC test suite:
3924 Stop bug triggering large recursion when presented with
3925 certain ASN.1 tags (CVE-2003-0851)
3928 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3930 *) Fix various bugs revealed by running the NISCC test suite:
3932 Stop out of bounds reads in the ASN1 code when presented with
3933 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3935 If verify callback ignores invalid public key errors don't try to check
3936 certificate signature with the NULL public key.
3940 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3941 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3945 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3946 extra data after the compression methods not only for TLS 1.0
3947 but also for SSL 3.0 (as required by the specification).
3948 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3950 *) Change X509_certificate_type() to mark the key as exported/exportable
3951 when it's 512 *bits* long, not 512 bytes.
3954 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3956 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3957 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3958 a protocol version number mismatch like a decryption error
3959 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3962 *) Turn on RSA blinding by default in the default implementation
3963 to avoid a timing attack. Applications that don't want it can call
3964 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3965 They would be ill-advised to do so in most cases.
3966 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3968 *) Change RSA blinding code so that it works when the PRNG is not
3969 seeded (in this case, the secret RSA exponent is abused as
3970 an unpredictable seed -- if it is not unpredictable, there
3971 is no point in blinding anyway). Make RSA blinding thread-safe
3972 by remembering the creator's thread ID in rsa->blinding and
3973 having all other threads use local one-time blinding factors
3974 (this requires more computation than sharing rsa->blinding, but
3975 avoids excessive locking; and if an RSA object is not shared
3976 between threads, blinding will still be very fast).
3979 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3981 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3982 via timing by performing a MAC computation even if incorrrect
3983 block cipher padding has been found. This is a countermeasure
3984 against active attacks where the attacker has to distinguish
3985 between bad padding and a MAC verification error. (CVE-2003-0078)
3987 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3988 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3989 Martin Vuagnoux (EPFL, Ilion)]
3991 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3993 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3994 memory from it's contents. This is done with a counter that will
3995 place alternating values in each byte. This can be used to solve
3996 two issues: 1) the removal of calls to memset() by highly optimizing
3997 compilers, and 2) cleansing with other values than 0, since those can
3998 be read through on certain media, for example a swap space on disk.
4001 *) Bugfix: client side session caching did not work with external caching,
4002 because the session->cipher setting was not restored when reloading
4003 from the external cache. This problem was masked, when
4004 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4005 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4008 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4009 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4010 [Zeev Lieber <zeev-l@yahoo.com>]
4012 *) Undo an undocumented change introduced in 0.9.6e which caused
4013 repeated calls to OpenSSL_add_all_ciphers() and
4014 OpenSSL_add_all_digests() to be ignored, even after calling
4018 *) Change the default configuration reader to deal with last line not
4019 being properly terminated.
4022 *) Change X509_NAME_cmp() so it applies the special rules on handling
4023 DN values that are of type PrintableString, as well as RDNs of type
4024 emailAddress where the value has the type ia5String.
4025 [stefank@valicert.com via Richard Levitte]
4027 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4028 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4029 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4030 the bitwise-OR of the two for use by the majority of applications
4031 wanting this behaviour, and update the docs. The documented
4032 behaviour and actual behaviour were inconsistent and had been
4033 changing anyway, so this is more a bug-fix than a behavioural
4035 [Geoff Thorpe, diagnosed by Nadav Har'El]
4037 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4038 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4041 *) Fix initialization code race conditions in
4042 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4043 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4044 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4045 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4046 ssl2_get_cipher_by_char(),
4047 ssl3_get_cipher_by_char().
4048 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4050 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4051 the cached sessions are flushed, as the remove_cb() might use ex_data
4052 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4053 (see [openssl.org #212]).
4054 [Geoff Thorpe, Lutz Jaenicke]
4056 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4057 length, instead of the encoding length to d2i_ASN1_OBJECT.
4060 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4062 *) [In 0.9.6g-engine release:]
4063 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4064 [Lynn Gazis <lgazis@rainbow.com>]
4066 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4068 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4069 and get fix the header length calculation.
4070 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4071 Alon Kantor <alonk@checkpoint.com> (and others),
4074 *) Use proper error handling instead of 'assertions' in buffer
4075 overflow checks added in 0.9.6e. This prevents DoS (the
4076 assertions could call abort()).
4077 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4079 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4081 *) Add various sanity checks to asn1_get_length() to reject
4082 the ASN1 length bytes if they exceed sizeof(long), will appear
4083 negative or the content length exceeds the length of the
4085 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4087 *) Fix cipher selection routines: ciphers without encryption had no flags
4088 for the cipher strength set and where therefore not handled correctly
4089 by the selection routines (PR #130).
4092 *) Fix EVP_dsa_sha macro.
4096 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4097 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4098 that was added in OpenSSL 0.9.6d.
4100 As the countermeasure turned out to be incompatible with some
4101 broken SSL implementations, the new option is part of SSL_OP_ALL.
4102 SSL_OP_ALL is usually employed when compatibility with weird SSL
4103 implementations is desired (e.g. '-bugs' option to 's_client' and
4104 's_server'), so the new option is automatically set in many
4108 *) Changes in security patch:
4110 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4111 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4112 Air Force Materiel Command, USAF, under agreement number
4115 *) Add various sanity checks to asn1_get_length() to reject
4116 the ASN1 length bytes if they exceed sizeof(long), will appear
4117 negative or the content length exceeds the length of the
4118 supplied buffer. (CVE-2002-0659)
4119 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4121 *) Assertions for various potential buffer overflows, not known to
4123 [Ben Laurie (CHATS)]
4125 *) Various temporary buffers to hold ASCII versions of integers were
4126 too small for 64 bit platforms. (CVE-2002-0655)
4127 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4129 *) Remote buffer overflow in SSL3 protocol - an attacker could
4130 supply an oversized session ID to a client. (CVE-2002-0656)
4131 [Ben Laurie (CHATS)]
4133 *) Remote buffer overflow in SSL2 protocol - an attacker could
4134 supply an oversized client master key. (CVE-2002-0656)
4135 [Ben Laurie (CHATS)]
4137 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4139 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4140 encoded as NULL) with id-dsa-with-sha1.
4141 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4143 *) Check various X509_...() return values in apps/req.c.
4144 [Nils Larsch <nla@trustcenter.de>]
4146 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4147 an end-of-file condition would erronously be flagged, when the CRLF
4148 was just at the end of a processed block. The bug was discovered when
4149 processing data through a buffering memory BIO handing the data to a
4150 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4151 <ptsekov@syntrex.com> and Nedelcho Stanev.
4154 *) Implement a countermeasure against a vulnerability recently found
4155 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4156 before application data chunks to avoid the use of known IVs
4157 with data potentially chosen by the attacker.
4160 *) Fix length checks in ssl3_get_client_hello().
4163 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4164 to prevent ssl3_read_internal() from incorrectly assuming that
4165 ssl3_read_bytes() found application data while handshake
4166 processing was enabled when in fact s->s3->in_read_app_data was
4167 merely automatically cleared during the initial handshake.
4168 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4170 *) Fix object definitions for Private and Enterprise: they were not
4171 recognized in their shortname (=lowercase) representation. Extend
4172 obj_dat.pl to issue an error when using undefined keywords instead
4173 of silently ignoring the problem (Svenning Sorensen
4174 <sss@sss.dnsalias.net>).
4177 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4178 generators, i.e. generators other than 2 and 5. (Previously, the
4179 code did not properly initialise the 'add' and 'rem' values to
4180 BN_generate_prime().)
4182 In the new general case, we do not insist that 'generator' is
4183 actually a primitive root: This requirement is rather pointless;
4184 a generator of the order-q subgroup is just as good, if not
4188 *) Map new X509 verification errors to alerts. Discovered and submitted by
4189 Tom Wu <tom@arcot.com>.
4192 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4193 returning non-zero before the data has been completely received
4194 when using non-blocking I/O.
4195 [Bodo Moeller; problem pointed out by John Hughes]
4197 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4198 [Ben Laurie, Lutz Jaenicke]
4200 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4201 Yoram Zahavi <YoramZ@gilian.com>).
4204 *) Add information about CygWin 1.3 and on, and preserve proper
4205 configuration for the versions before that.
4206 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4208 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4209 check whether we deal with a copy of a session and do not delete from
4210 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4211 <izhar@checkpoint.com>.
4214 *) Do not store session data into the internal session cache, if it
4215 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4216 flag is set). Proposed by Aslam <aslam@funk.com>.
4219 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4223 *) [In 0.9.6d-engine release:]
4224 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4225 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4227 *) Add the configuration target linux-s390x.
4228 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4230 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4231 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4232 variable as an indication that a ClientHello message has been
4233 received. As the flag value will be lost between multiple
4234 invocations of ssl3_accept when using non-blocking I/O, the
4235 function may not be aware that a handshake has actually taken
4236 place, thus preventing a new session from being added to the
4239 To avoid this problem, we now set s->new_session to 2 instead of
4240 using a local variable.
4241 [Lutz Jaenicke, Bodo Moeller]
4243 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4244 if the SSL_R_LENGTH_MISMATCH error is detected.
4245 [Geoff Thorpe, Bodo Moeller]
4247 *) New 'shared_ldflag' column in Configure platform table.
4250 *) Fix EVP_CIPHER_mode macro.
4251 ["Dan S. Camper" <dan@bti.net>]
4253 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4254 type, we must throw them away by setting rr->length to 0.
4255 [D P Chang <dpc@qualys.com>]
4257 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4259 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4260 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4261 worked incorrectly for those cases where range = 10..._2 and
4262 3*range is two bits longer than range.)
4265 *) Only add signing time to PKCS7 structures if it is not already
4269 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4270 OBJ_ld_ce should be OBJ_id_ce.
4271 Also some ip-pda OIDs in crypto/objects/objects.txt were
4272 incorrect (cf. RFC 3039).
4273 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4275 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4276 returns early because it has nothing to do.
4277 [Andy Schneider <andy.schneider@bjss.co.uk>]
4279 *) [In 0.9.6c-engine release:]
4280 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4281 [Andy Schneider <andy.schneider@bjss.co.uk>]
4283 *) [In 0.9.6c-engine release:]
4284 Add support for Cryptographic Appliance's keyserver technology.
4285 (Use engine 'keyclient')
4286 [Cryptographic Appliances and Geoff Thorpe]
4288 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4289 is called via tools/c89.sh because arguments have to be
4290 rearranged (all '-L' options must appear before the first object
4292 [Richard Shapiro <rshapiro@abinitio.com>]
4294 *) [In 0.9.6c-engine release:]
4295 Add support for Broadcom crypto accelerator cards, backported
4297 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4299 *) [In 0.9.6c-engine release:]
4300 Add support for SureWare crypto accelerator cards from
4301 Baltimore Technologies. (Use engine 'sureware')
4302 [Baltimore Technologies and Mark Cox]
4304 *) [In 0.9.6c-engine release:]
4305 Add support for crypto accelerator cards from Accelerated
4306 Encryption Processing, www.aep.ie. (Use engine 'aep')
4307 [AEP Inc. and Mark Cox]
4309 *) Add a configuration entry for gcc on UnixWare.
4310 [Gary Benson <gbenson@redhat.com>]
4312 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4313 messages are stored in a single piece (fixed-length part and
4314 variable-length part combined) and fix various bugs found on the way.
4317 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4318 instead. BIO_gethostbyname() does not know what timeouts are
4319 appropriate, so entries would stay in cache even when they have
4321 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4323 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4324 faced with a pathologically small ClientHello fragment that does
4325 not contain client_version: Instead of aborting with an error,
4326 simply choose the highest available protocol version (i.e.,
4327 TLS 1.0 unless it is disabled). In practice, ClientHello
4328 messages are never sent like this, but this change gives us
4329 strictly correct behaviour at least for TLS.
4332 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4333 never resets s->method to s->ctx->method when called from within
4334 one of the SSL handshake functions.
4335 [Bodo Moeller; problem pointed out by Niko Baric]
4337 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4338 (sent using the client's version number) if client_version is
4339 smaller than the protocol version in use. Also change
4340 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4341 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4342 the client will at least see that alert.
4345 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4349 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4350 client receives HelloRequest while in a handshake.
4351 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4353 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4354 should end in 'break', not 'goto end' which circuments various
4355 cleanups done in state SSL_ST_OK. But session related stuff
4356 must be disabled for SSL_ST_OK in the case that we just sent a
4359 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4360 before just sending a HelloRequest.
4361 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4363 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4364 reveal whether illegal block cipher padding was found or a MAC
4365 verification error occured. (Neither SSLerr() codes nor alerts
4366 are directly visible to potential attackers, but the information
4367 may leak via logfiles.)
4369 Similar changes are not required for the SSL 2.0 implementation
4370 because the number of padding bytes is sent in clear for SSL 2.0,
4371 and the extra bytes are just ignored. However ssl/s2_pkt.c
4372 failed to verify that the purported number of padding bytes is in
4376 *) Add OpenUNIX-8 support including shared libraries
4377 (Boyd Lynn Gerber <gerberb@zenez.com>).
4380 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4381 'wristwatch attack' using huge encoding parameters (cf.
4382 James H. Manger's CRYPTO 2001 paper). Note that the
4383 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4384 encoding parameters and hence was not vulnerable.
4387 *) BN_sqr() bug fix.
4388 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4390 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4391 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4392 followed by modular reduction.
4393 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4395 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4396 equivalent based on BN_pseudo_rand() instead of BN_rand().
4399 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4400 This function was broken, as the check for a new client hello message
4401 to handle SGC did not allow these large messages.
4402 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4405 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4408 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4409 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4412 *) Rework the configuration and shared library support for Tru64 Unix.
4413 The configuration part makes use of modern compiler features and
4414 still retains old compiler behavior for those that run older versions
4415 of the OS. The shared library support part includes a variant that
4416 uses the RPATH feature, and is available through the special
4417 configuration target "alpha-cc-rpath", which will never be selected
4419 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4421 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4422 with the same message size as in ssl3_get_certificate_request().
4423 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4424 messages might inadvertently be reject as too long.
4425 [Petr Lampa <lampa@fee.vutbr.cz>]
4427 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4430 *) Modified SSL library such that the verify_callback that has been set
4431 specificly for an SSL object with SSL_set_verify() is actually being
4432 used. Before the change, a verify_callback set with this function was
4433 ignored and the verify_callback() set in the SSL_CTX at the time of
4434 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4435 to allow the necessary settings.
4438 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4439 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4440 done automatically (in contradiction to the requirements of the C
4441 standard). This made problems when used from OpenSSH.
4444 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4445 dh->length and always used
4447 BN_rand_range(priv_key, dh->p).
4449 BN_rand_range() is not necessary for Diffie-Hellman, and this
4450 specific range makes Diffie-Hellman unnecessarily inefficient if
4451 dh->length (recommended exponent length) is much smaller than the
4452 length of dh->p. We could use BN_rand_range() if the order of
4453 the subgroup was stored in the DH structure, but we only have
4458 BN_rand(priv_key, l, ...)
4460 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4466 RSA_eay_public_encrypt
4467 RSA_eay_private_decrypt
4468 RSA_eay_private_encrypt (signing)
4469 RSA_eay_public_decrypt (signature verification)
4471 (default implementations for RSA_public_encrypt,
4472 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4473 always reject numbers >= n.
4476 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4477 to synchronize access to 'locking_thread'. This is necessary on
4478 systems where access to 'locking_thread' (an 'unsigned long'
4479 variable) is not atomic.
4482 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4483 *before* setting the 'crypto_lock_rand' flag. The previous code had
4484 a race condition if 0 is a valid thread ID.
4485 [Travis Vitek <vitek@roguewave.com>]
4487 *) Add support for shared libraries under Irix.
4488 [Albert Chin-A-Young <china@thewrittenword.com>]
4490 *) Add configuration option to build on Linux on both big-endian and
4492 [Ralf Baechle <ralf@uni-koblenz.de>]
4494 *) Add the possibility to create shared libraries on HP-UX.
4497 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4499 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4500 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4501 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4502 PRNG state recovery was possible based on the output of
4503 one PRNG request appropriately sized to gain knowledge on
4504 'md' followed by enough consecutive 1-byte PRNG requests
4505 to traverse all of 'state'.
4507 1. When updating 'md_local' (the current thread's copy of 'md')
4508 during PRNG output generation, hash all of the previous
4509 'md_local' value, not just the half used for PRNG output.
4511 2. Make the number of bytes from 'state' included into the hash
4512 independent from the number of PRNG bytes requested.
4514 The first measure alone would be sufficient to avoid
4515 Markku-Juhani's attack. (Actually it had never occurred
4516 to me that the half of 'md_local' used for chaining was the
4517 half from which PRNG output bytes were taken -- I had always
4518 assumed that the secret half would be used.) The second
4519 measure makes sure that additional data from 'state' is never
4520 mixed into 'md_local' in small portions; this heuristically
4521 further strengthens the PRNG.
4524 *) Fix crypto/bn/asm/mips3.s.
4527 *) When only the key is given to "enc", the IV is undefined. Print out
4528 an error message in this case.
4531 *) Handle special case when X509_NAME is empty in X509 printing routines.
4534 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4535 positive and less than q.
4538 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4539 used: it isn't thread safe and the add_lock_callback should handle
4541 [Paul Rose <Paul.Rose@bridge.com>]
4543 *) Verify that incoming data obeys the block size in
4544 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4548 [Ulf Möller, Bodo Möller]
4550 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4551 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4552 when fixing the server behaviour for backwards-compatible 'client
4553 hello' messages. (Note that the attack is impractical against
4554 SSL 3.0 and TLS 1.0 anyway because length and version checking
4555 means that the probability of guessing a valid ciphertext is
4556 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4559 Before 0.9.5, the countermeasure (hide the error by generating a
4560 random 'decryption result') did not work properly because
4561 ERR_clear_error() was missing, meaning that SSL_get_error() would
4562 detect the supposedly ignored error.
4564 Both problems are now fixed.
4567 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4568 (previously it was 1024).
4571 *) Fix for compatibility mode trust settings: ignore trust settings
4572 unless some valid trust or reject settings are present.
4575 *) Fix for blowfish EVP: its a variable length cipher.
4578 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4579 parameters in DSA public key structures and return an error in the
4580 DSA routines if parameters are absent.
4583 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4584 in the current directory if neither $RANDFILE nor $HOME was set.
4585 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4586 caused some confusion to Windows users who haven't defined $HOME.
4587 Thus RAND_file_name() is changed again: e_os.h can define a
4588 DEFAULT_HOME, which will be used if $HOME is not set.
4589 For Windows, we use "C:"; on other platforms, we still require
4590 environment variables.
4592 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4593 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4594 having multiple threads call RAND_poll() concurrently.
4597 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4598 combination of a flag and a thread ID variable.
4599 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4600 flag), *other* threads can enter ssleay_add_bytes without obeying
4601 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4602 that they do not hold after the first thread unsets add_do_not_lock).
4605 *) Change bctest again: '-x' expressions are not available in all
4609 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4611 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4612 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4614 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4615 the default extension for executables, if any. Also, make the perl
4616 scripts that use symlink() to test if it really exists and use "cp"
4617 if it doesn't. All this made OpenSSL compilable and installable in
4621 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4622 If SEQUENCE is length is indefinite just set c->slen to the total
4623 amount of data available.
4624 [Steve Henson, reported by shige@FreeBSD.org]
4625 [This change does not apply to 0.9.7.]
4627 *) Change bctest to avoid here-documents inside command substitution
4628 (workaround for FreeBSD /bin/sh bug).
4629 For compatibility with Ultrix, avoid shell functions (introduced
4630 in the bctest version that searches along $PATH).
4633 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4634 with des_encrypt() defined on some operating systems, like Solaris
4638 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4639 On the Importance of Eliminating Errors in Cryptographic
4640 Computations, J. Cryptology 14 (2001) 2, 101-119,
4641 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4644 *) MIPS assembler BIGNUM division bug fix.
4647 *) Disabled incorrect Alpha assembler code.
4650 *) Fix PKCS#7 decode routines so they correctly update the length
4651 after reading an EOC for the EXPLICIT tag.
4653 [This change does not apply to 0.9.7.]
4655 *) Fix bug in PKCS#12 key generation routines. This was triggered
4656 if a 3DES key was generated with a 0 initial byte. Include
4657 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4658 (but broken) behaviour.
4661 *) Enhance bctest to search for a working bc along $PATH and print
4663 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4665 *) Fix memory leaks in err.c: free err_data string if necessary;
4666 don't write to the wrong index in ERR_set_error_data.
4669 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4673 *) Replace rdtsc with _emit statements for VC++ version 5.
4674 [Jeremy Cooper <jeremy@baymoo.org>]
4676 *) Make it possible to reuse SSLv2 sessions.
4679 *) In copy_email() check for >= 0 as a return value for
4680 X509_NAME_get_index_by_NID() since 0 is a valid index.
4681 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4683 *) Avoid coredump with unsupported or invalid public keys by checking if
4684 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4685 PKCS7_verify() fails with non detached data.
4688 *) Don't use getenv in library functions when run as setuid/setgid.
4689 New function OPENSSL_issetugid().
4692 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4693 due to incorrect handling of multi-threading:
4695 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4697 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4699 3. Count how many times MemCheck_off() has been called so that
4700 nested use can be treated correctly. This also avoids
4701 inband-signalling in the previous code (which relied on the
4702 assumption that thread ID 0 is impossible).
4705 *) Add "-rand" option also to s_client and s_server.
4708 *) Fix CPU detection on Irix 6.x.
4709 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4710 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4712 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4715 [This change does not apply to 0.9.7.]
4717 *) Use the cached encoding of an X509_NAME structure rather than
4718 copying it. This is apparently the reason for the libsafe "errors"
4719 but the code is actually correct.
4722 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4723 Bleichenbacher's DSA attack.
4724 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4725 to be set and top=0 forces the highest bit to be set; top=-1 is new
4726 and leaves the highest bit random.
4727 [Ulf Moeller, Bodo Moeller]
4729 *) In the NCONF_...-based implementations for CONF_... queries
4730 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4731 a temporary CONF structure with the data component set to NULL
4732 (which gives segmentation faults in lh_retrieve).
4733 Instead, use NULL for the CONF pointer in CONF_get_string and
4734 CONF_get_number (which may use environment variables) and directly
4735 return NULL from CONF_get_section.
4738 *) Fix potential buffer overrun for EBCDIC.
4741 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4742 keyUsage if basicConstraints absent for a CA.
4745 *) Make SMIME_write_PKCS7() write mail header values with a format that
4746 is more generally accepted (no spaces before the semicolon), since
4747 some programs can't parse those values properly otherwise. Also make
4748 sure BIO's that break lines after each write do not create invalid
4752 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4753 macros previously used would not encode an empty SEQUENCE OF
4754 and break the signature.
4756 [This change does not apply to 0.9.7.]
4758 *) Zero the premaster secret after deriving the master secret in
4762 *) Add some EVP_add_digest_alias registrations (as found in
4763 OpenSSL_add_all_digests()) to SSL_library_init()
4764 aka OpenSSL_add_ssl_algorithms(). This provides improved
4765 compatibility with peers using X.509 certificates
4766 with unconventional AlgorithmIdentifier OIDs.
4769 *) Fix for Irix with NO_ASM.
4770 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4772 *) ./config script fixes.
4773 [Ulf Moeller, Richard Levitte]
4775 *) Fix 'openssl passwd -1'.
4778 *) Change PKCS12_key_gen_asc() so it can cope with non null
4779 terminated strings whose length is passed in the passlen
4780 parameter, for example from PEM callbacks. This was done
4781 by adding an extra length parameter to asc2uni().
4782 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4784 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4785 call failed, free the DSA structure.
4788 *) Fix to uni2asc() to cope with zero length Unicode strings.
4789 These are present in some PKCS#12 files.
4792 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4793 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4794 when writing a 32767 byte record.
4795 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4797 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4798 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4800 (RSA objects have a reference count access to which is protected
4801 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4802 so they are meant to be shared between threads.)
4803 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4804 "Reddie, Steven" <Steven.Reddie@ca.com>]
4806 *) Fix a deadlock in CRYPTO_mem_leaks().
4809 *) Use better test patterns in bntest.
4812 *) rand_win.c fix for Borland C.
4815 *) BN_rshift bugfix for n == 0.
4818 *) Add a 'bctest' script that checks for some known 'bc' bugs
4819 so that 'make test' does not abort just because 'bc' is broken.
4822 *) Store verify_result within SSL_SESSION also for client side to
4823 avoid potential security hole. (Re-used sessions on the client side
4824 always resulted in verify_result==X509_V_OK, not using the original
4825 result of the server certificate verification.)
4828 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4829 SSL3_RT_APPLICATION_DATA, return 0.
4830 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4834 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4835 releases, have been re-implemented by renaming the previous
4836 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4837 and ssl3_read_internal, respectively, and adding 'peek' parameters
4838 to them. The new ssl[23]_{read,peek} functions are calls to
4839 ssl[23]_read_internal with the 'peek' flag set appropriately.
4840 A 'peek' parameter has also been added to ssl3_read_bytes, which
4841 does the actual work for ssl3_read_internal.
4844 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4845 the method-specific "init()" handler. Also clean up ex_data after
4846 calling the method-specific "finish()" handler. Previously, this was
4847 happening the other way round.
4850 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4851 The previous value, 12, was not always sufficient for BN_mod_exp().
4854 *) Make sure that shared libraries get the internal name engine with
4855 the full version number and not just 0. This should mark the
4856 shared libraries as not backward compatible. Of course, this should
4857 be changed again when we can guarantee backward binary compatibility.
4860 *) Fix typo in get_cert_by_subject() in by_dir.c
4861 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4863 *) Rework the system to generate shared libraries:
4865 - Make note of the expected extension for the shared libraries and
4866 if there is a need for symbolic links from for example libcrypto.so.0
4867 to libcrypto.so.0.9.7. There is extended info in Configure for
4870 - Make as few rebuilds of the shared libraries as possible.
4872 - Still avoid linking the OpenSSL programs with the shared libraries.
4874 - When installing, install the shared libraries separately from the
4878 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4880 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4881 and not in SSL_clear because the latter is also used by the
4882 accept/connect functions; previously, the settings made by
4883 SSL_set_read_ahead would be lost during the handshake.
4884 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4886 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4887 Previously, it would create entries for disableed algorithms no
4891 *) Added several new manual pages for SSL_* function.
4894 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4896 *) In ssl23_get_client_hello, generate an error message when faced
4897 with an initial SSL 3.0/TLS record that is too small to contain the
4898 first two bytes of the ClientHello message, i.e. client_version.
4899 (Note that this is a pathologic case that probably has never happened
4900 in real life.) The previous approach was to use the version number
4901 from the record header as a substitute; but our protocol choice
4902 should not depend on that one because it is not authenticated
4903 by the Finished messages.
4906 *) More robust randomness gathering functions for Windows.
4907 [Jeffrey Altman <jaltman@columbia.edu>]
4909 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4910 not set then we don't setup the error code for issuer check errors
4911 to avoid possibly overwriting other errors which the callback does
4912 handle. If an application does set the flag then we assume it knows
4913 what it is doing and can handle the new informational codes
4917 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4918 a general "ANY" type, as such it should be able to decode anything
4919 including tagged types. However it didn't check the class so it would
4920 wrongly interpret tagged types in the same way as their universal
4921 counterpart and unknown types were just rejected. Changed so that the
4922 tagged and unknown types are handled in the same way as a SEQUENCE:
4923 that is the encoding is stored intact. There is also a new type
4924 "V_ASN1_OTHER" which is used when the class is not universal, in this
4925 case we have no idea what the actual type is so we just lump them all
4929 *) On VMS, stdout may very well lead to a file that is written to
4930 in a record-oriented fashion. That means that every write() will
4931 write a separate record, which will be read separately by the
4932 programs trying to read from it. This can be very confusing.
4934 The solution is to put a BIO filter in the way that will buffer
4935 text until a linefeed is reached, and then write everything a
4936 line at a time, so every record written will be an actual line,
4937 not chunks of lines and not (usually doesn't happen, but I've
4938 seen it once) several lines in one record. BIO_f_linebuffer() is
4941 Currently, it's a VMS-only method, because that's where it has
4942 been tested well enough.
4945 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4946 it can return incorrect results.
4947 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4948 but it was in 0.9.6-beta[12].)
4951 *) Disable the check for content being present when verifying detached
4952 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4953 include zero length content when signing messages.
4956 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4957 BIO_ctrl (for BIO pairs).
4960 *) Add DSO method for VMS.
4963 *) Bug fix: Montgomery multiplication could produce results with the
4967 *) Add RPM specification openssl.spec and modify it to build three
4968 packages. The default package contains applications, application
4969 documentation and run-time libraries. The devel package contains
4970 include files, static libraries and function documentation. The
4971 doc package contains the contents of the doc directory. The original
4972 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4975 *) Add a large number of documentation files for many SSL routines.
4976 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4978 *) Add a configuration entry for Sony News 4.
4979 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4981 *) Don't set the two most significant bits to one when generating a
4982 random number < q in the DSA library.
4985 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4986 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4987 the underlying transport is blocking) if a handshake took place.
4988 (The default behaviour is needed by applications such as s_client
4989 and s_server that use select() to determine when to use SSL_read;
4990 but for applications that know in advance when to expect data, it
4991 just makes things more complicated.)
4994 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4998 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4999 work better on such systems.
5000 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5002 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5003 Update PKCS12_parse() so it copies the friendlyName and the
5004 keyid to the certificates aux info.
5007 *) Fix bug in PKCS7_verify() which caused an infinite loop
5008 if there was more than one signature.
5009 [Sven Uszpelkat <su@celocom.de>]
5011 *) Major change in util/mkdef.pl to include extra information
5012 about each symbol, as well as presentig variables as well
5013 as functions. This change means that there's n more need
5014 to rebuild the .num files when some algorithms are excluded.
5017 *) Allow the verify time to be set by an application,
5018 rather than always using the current time.
5021 *) Phase 2 verify code reorganisation. The certificate
5022 verify code now looks up an issuer certificate by a
5023 number of criteria: subject name, authority key id
5024 and key usage. It also verifies self signed certificates
5025 by the same criteria. The main comparison function is
5026 X509_check_issued() which performs these checks.
5028 Lot of changes were necessary in order to support this
5029 without completely rewriting the lookup code.
5031 Authority and subject key identifier are now cached.
5033 The LHASH 'certs' is X509_STORE has now been replaced
5034 by a STACK_OF(X509_OBJECT). This is mainly because an
5035 LHASH can't store or retrieve multiple objects with
5036 the same hash value.
5038 As a result various functions (which were all internal
5039 use only) have changed to handle the new X509_STORE
5040 structure. This will break anything that messed round
5041 with X509_STORE internally.
5043 The functions X509_STORE_add_cert() now checks for an
5044 exact match, rather than just subject name.
5046 The X509_STORE API doesn't directly support the retrieval
5047 of multiple certificates matching a given criteria, however
5048 this can be worked round by performing a lookup first
5049 (which will fill the cache with candidate certificates)
5050 and then examining the cache for matches. This is probably
5051 the best we can do without throwing out X509_LOOKUP
5052 entirely (maybe later...).
5054 The X509_VERIFY_CTX structure has been enhanced considerably.
5056 All certificate lookup operations now go via a get_issuer()
5057 callback. Although this currently uses an X509_STORE it
5058 can be replaced by custom lookups. This is a simple way
5059 to bypass the X509_STORE hackery necessary to make this
5060 work and makes it possible to use more efficient techniques
5061 in future. A very simple version which uses a simple
5062 STACK for its trusted certificate store is also provided
5063 using X509_STORE_CTX_trusted_stack().
5065 The verify_cb() and verify() callbacks now have equivalents
5066 in the X509_STORE_CTX structure.
5068 X509_STORE_CTX also has a 'flags' field which can be used
5069 to customise the verify behaviour.
5072 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5073 excludes S/MIME capabilities.
5076 *) When a certificate request is read in keep a copy of the
5077 original encoding of the signed data and use it when outputing
5078 again. Signatures then use the original encoding rather than
5079 a decoded, encoded version which may cause problems if the
5080 request is improperly encoded.
5083 *) For consistency with other BIO_puts implementations, call
5084 buffer_write(b, ...) directly in buffer_puts instead of calling
5087 In BIO_puts, increment b->num_write as in BIO_write.
5088 [Peter.Sylvester@EdelWeb.fr]
5090 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5091 BN_zero, we may not return a BIGNUM with an array consisting of
5095 *) Avoid calling abort() from within the library when problems are
5096 detected, except if preprocessor symbols have been defined
5097 (such as REF_CHECK, BN_DEBUG etc.).
5100 *) New openssl application 'rsautl'. This utility can be
5101 used for low level RSA operations. DER public key
5102 BIO/fp routines also added.
5105 *) New Configure entry and patches for compiling on QNX 4.
5106 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5108 *) A demo state-machine implementation was sponsored by
5109 Nuron (http://www.nuron.com/) and is now available in
5110 demos/state_machine.
5113 *) New options added to the 'dgst' utility for signature
5114 generation and verification.
5117 *) Unrecognized PKCS#7 content types are now handled via a
5118 catch all ASN1_TYPE structure. This allows unsupported
5119 types to be stored as a "blob" and an application can
5120 encode and decode it manually.
5123 *) Fix various signed/unsigned issues to make a_strex.c
5125 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5127 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5128 length if passed a buffer. ASN1_INTEGER_to_BN failed
5129 if passed a NULL BN and its argument was negative.
5130 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5132 *) Modification to PKCS#7 encoding routines to output definite
5133 length encoding. Since currently the whole structures are in
5134 memory there's not real point in using indefinite length
5135 constructed encoding. However if OpenSSL is compiled with
5136 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5139 *) Added BIO_vprintf() and BIO_vsnprintf().
5142 *) Added more prefixes to parse for in the the strings written
5143 through a logging bio, to cover all the levels that are available
5144 through syslog. The prefixes are now:
5146 PANIC, EMERG, EMR => LOG_EMERG
5147 ALERT, ALR => LOG_ALERT
5148 CRIT, CRI => LOG_CRIT
5149 ERROR, ERR => LOG_ERR
5150 WARNING, WARN, WAR => LOG_WARNING
5151 NOTICE, NOTE, NOT => LOG_NOTICE
5152 INFO, INF => LOG_INFO
5153 DEBUG, DBG => LOG_DEBUG
5155 and as before, if none of those prefixes are present at the
5156 beginning of the string, LOG_ERR is chosen.
5158 On Win32, the LOG_* levels are mapped according to this:
5160 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5161 LOG_WARNING => EVENTLOG_WARNING_TYPE
5162 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5166 *) Made it possible to reconfigure with just the configuration
5167 argument "reconf" or "reconfigure". The command line arguments
5168 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5169 and are retrieved from there when reconfiguring.
5173 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5175 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5178 *) The obj_dat.pl script was messing up the sorting of object
5179 names. The reason was that it compared the quoted version
5180 of strings as a result "OCSP" > "OCSP Signing" because
5181 " > SPACE. Changed script to store unquoted versions of
5182 names and add quotes on output. It was also omitting some
5183 names from the lookup table if they were given a default
5184 value (that is if SN is missing it is given the same
5185 value as LN and vice versa), these are now added on the
5186 grounds that if an object has a name we should be able to
5187 look it up. Finally added warning output when duplicate
5188 short or long names are found.
5191 *) Changes needed for Tandem NSK.
5192 [Scott Uroff <scott@xypro.com>]
5194 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5195 RSA_padding_check_SSLv23(), special padding was never detected
5196 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5197 version rollback attacks was not effective.
5199 In s23_clnt.c, don't use special rollback-attack detection padding
5200 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5201 client; similarly, in s23_srvr.c, don't do the rollback check if
5202 SSL 2.0 is the only protocol enabled in the server.
5205 *) Make it possible to get hexdumps of unprintable data with 'openssl
5206 asn1parse'. By implication, the functions ASN1_parse_dump() and
5207 BIO_dump_indent() are added.
5210 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5211 these print out strings and name structures based on various
5212 flags including RFC2253 support and proper handling of
5213 multibyte characters. Added options to the 'x509' utility
5214 to allow the various flags to be set.
5217 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5218 Also change the functions X509_cmp_current_time() and
5219 X509_gmtime_adj() work with an ASN1_TIME structure,
5220 this will enable certificates using GeneralizedTime in validity
5221 dates to be checked.
5224 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5225 negative public key encodings) on by default,
5226 NO_NEG_PUBKEY_BUG can be set to disable it.
5229 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5230 content octets. An i2c_ASN1_OBJECT is unnecessary because
5231 the encoding can be trivially obtained from the structure.
5234 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5235 not read locks (CRYPTO_r_[un]lock).
5238 *) A first attempt at creating official support for shared
5239 libraries through configuration. I've kept it so the
5240 default is static libraries only, and the OpenSSL programs
5241 are always statically linked for now, but there are
5242 preparations for dynamic linking in place.
5243 This has been tested on Linux and Tru64.
5246 *) Randomness polling function for Win9x, as described in:
5247 Peter Gutmann, Software Generation of Practically Strong
5251 *) Fix so PRNG is seeded in req if using an already existing
5255 *) New options to smime application. -inform and -outform
5256 allow alternative formats for the S/MIME message including
5257 PEM and DER. The -content option allows the content to be
5258 specified separately. This should allow things like Netscape
5259 form signing output easier to verify.
5262 *) Fix the ASN1 encoding of tags using the 'long form'.
5265 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5266 STRING types. These convert content octets to and from the
5267 underlying type. The actual tag and length octets are
5268 already assumed to have been read in and checked. These
5269 are needed because all other string types have virtually
5270 identical handling apart from the tag. By having versions
5271 of the ASN1 functions that just operate on content octets
5272 IMPLICIT tagging can be handled properly. It also allows
5273 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5274 and ASN1_INTEGER are identical apart from the tag.
5277 *) Change the handling of OID objects as follows:
5279 - New object identifiers are inserted in objects.txt, following
5280 the syntax given in objects.README.
5281 - objects.pl is used to process obj_mac.num and create a new
5283 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5286 This is currently kind of a hack, and the perl code in objects.pl
5287 isn't very elegant, but it works as I intended. The simplest way
5288 to check that it worked correctly is to look in obj_dat.h and
5289 check the array nid_objs and make sure the objects haven't moved
5290 around (this is important!). Additions are OK, as well as
5291 consistent name changes.
5294 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5297 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5298 The given file adds to whatever has already been seeded into the
5299 random pool through the RANDFILE configuration file option or
5300 environment variable, or the default random state file.
5303 *) mkstack.pl now sorts each macro group into lexical order.
5304 Previously the output order depended on the order the files
5305 appeared in the directory, resulting in needless rewriting
5309 *) Patches to make OpenSSL compile under Win32 again. Mostly
5310 work arounds for the VC++ problem that it treats func() as
5311 func(void). Also stripped out the parts of mkdef.pl that
5312 added extra typesafe functions: these no longer exist.
5315 *) Reorganisation of the stack code. The macros are now all
5316 collected in safestack.h . Each macro is defined in terms of
5317 a "stack macro" of the form SKM_<name>(type, a, b). The
5318 DEBUG_SAFESTACK is now handled in terms of function casts,
5319 this has the advantage of retaining type safety without the
5320 use of additional functions. If DEBUG_SAFESTACK is not defined
5321 then the non typesafe macros are used instead. Also modified the
5322 mkstack.pl script to handle the new form. Needs testing to see
5323 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5324 the default if no major problems. Similar behaviour for ASN1_SET_OF
5325 and PKCS12_STACK_OF.
5328 *) When some versions of IIS use the 'NET' form of private key the
5329 key derivation algorithm is different. Normally MD5(password) is
5330 used as a 128 bit RC4 key. In the modified case
5331 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5332 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5333 as the old Netscape_RSA functions except they have an additional
5334 'sgckey' parameter which uses the modified algorithm. Also added
5335 an -sgckey command line option to the rsa utility. Thanks to
5336 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5337 algorithm to openssl-dev.
5340 *) The evp_local.h macros were using 'c.##kname' which resulted in
5341 invalid expansion on some systems (SCO 5.0.5 for example).
5342 Corrected to 'c.kname'.
5343 [Phillip Porch <root@theporch.com>]
5345 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5346 a STACK of email addresses from a certificate or request, these look
5347 in the subject name and the subject alternative name extensions and
5348 omit any duplicate addresses.
5351 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5352 This makes DSA verification about 2 % faster.
5355 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5356 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5357 plus overhead for 1024 bit moduli).
5358 This makes exponentiations about 0.5 % faster for 1024 bit
5359 exponents (as measured by "openssl speed rsa2048").
5362 *) Rename memory handling macros to avoid conflicts with other
5364 Malloc => OPENSSL_malloc
5365 Malloc_locked => OPENSSL_malloc_locked
5366 Realloc => OPENSSL_realloc
5367 Free => OPENSSL_free
5370 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5371 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5374 *) CygWin32 support.
5375 [John Jarvie <jjarvie@newsguy.com>]
5377 *) The type-safe stack code has been rejigged. It is now only compiled
5378 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5379 by default all type-specific stack functions are "#define"d back to
5380 standard stack functions. This results in more streamlined output
5381 but retains the type-safety checking possibilities of the original
5385 *) The STACK code has been cleaned up, and certain type declarations
5386 that didn't make a lot of sense have been brought in line. This has
5387 also involved a cleanup of sorts in safestack.h to more correctly
5388 map type-safe stack functions onto their plain stack counterparts.
5389 This work has also resulted in a variety of "const"ifications of
5390 lots of the code, especially "_cmp" operations which should normally
5391 be prototyped with "const" parameters anyway.
5394 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5395 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5396 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5397 where all of 'md' is used each time the PRNG is used, but 'state'
5398 is used only indexed by a cyclic counter. As entropy may not be
5399 well distributed from the beginning, 'md' is important as a
5400 chaining variable. However, the output function chains only half
5401 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5402 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5403 in all of 'state' being rewritten, with the new values depending
5404 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5407 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5408 the handshake is continued after ssl_verify_cert_chain();
5409 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5410 can lead to 'unexplainable' connection aborts later.
5411 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5413 *) Major EVP API cipher revision.
5414 Add hooks for extra EVP features. This allows various cipher
5415 parameters to be set in the EVP interface. Support added for variable
5416 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5417 setting of RC2 and RC5 parameters.
5419 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5422 Remove lots of duplicated code from the EVP library. For example *every*
5423 cipher init() function handles the 'iv' in the same way according to the
5424 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5425 for CFB and OFB modes they zero ctx->num.
5427 New functionality allows removal of S/MIME code RC2 hack.
5429 Most of the routines have the same form and so can be declared in terms
5432 By shifting this to the top level EVP_CipherInit() it can be removed from
5433 all individual ciphers. If the cipher wants to handle IVs or keys
5434 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5437 Change lots of functions like EVP_EncryptUpdate() to now return a
5438 value: although software versions of the algorithms cannot fail
5439 any installed hardware versions can.
5442 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5443 this option is set, tolerate broken clients that send the negotiated
5444 protocol version number instead of the requested protocol version
5448 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5449 i.e. non-zero for export ciphersuites, zero otherwise.
5450 Previous versions had this flag inverted, inconsistent with
5451 rsa_tmp_cb (..._TMP_RSA_CB).
5452 [Bodo Moeller; problem reported by Amit Chopra]
5454 *) Add missing DSA library text string. Work around for some IIS
5455 key files with invalid SEQUENCE encoding.
5458 *) Add a document (doc/standards.txt) that list all kinds of standards
5459 and so on that are implemented in OpenSSL.
5462 *) Enhance c_rehash script. Old version would mishandle certificates
5463 with the same subject name hash and wouldn't handle CRLs at all.
5464 Added -fingerprint option to crl utility, to support new c_rehash
5468 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5471 *) Fix for SSL server purpose checking. Server checking was
5472 rejecting certificates which had extended key usage present
5473 but no ssl client purpose.
5474 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5476 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5477 is a little unclear about how a blank password is handled.
5478 Since the password in encoded as a BMPString with terminating
5479 double NULL a zero length password would end up as just the
5480 double NULL. However no password at all is different and is
5481 handled differently in the PKCS#12 key generation code. NS
5482 treats a blank password as zero length. MSIE treats it as no
5483 password on export: but it will try both on import. We now do
5484 the same: PKCS12_parse() tries zero length and no password if
5485 the password is set to "" or NULL (NULL is now a valid password:
5486 it wasn't before) as does the pkcs12 application.
5489 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5490 perror when PEM_read_bio_X509_REQ fails, the error message must
5491 be obtained from the error queue.
5494 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5495 it in ERR_remove_state if appropriate, and change ERR_get_state
5496 accordingly to avoid race conditions (this is necessary because
5497 thread_hash is no longer constant once set).
5500 *) Bugfix for linux-elf makefile.one.
5503 *) RSA_get_default_method() will now cause a default
5504 RSA_METHOD to be chosen if one doesn't exist already.
5505 Previously this was only set during a call to RSA_new()
5506 or RSA_new_method(NULL) meaning it was possible for
5507 RSA_get_default_method() to return NULL.
5510 *) Added native name translation to the existing DSO code
5511 that will convert (if the flag to do so is set) filenames
5512 that are sufficiently small and have no path information
5513 into a canonical native form. Eg. "blah" converted to
5514 "libblah.so" or "blah.dll" etc.
5517 *) New function ERR_error_string_n(e, buf, len) which is like
5518 ERR_error_string(e, buf), but writes at most 'len' bytes
5519 including the 0 terminator. For ERR_error_string_n, 'buf'
5521 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5523 *) CONF library reworked to become more general. A new CONF
5524 configuration file reader "class" is implemented as well as a
5525 new functions (NCONF_*, for "New CONF") to handle it. The now
5526 old CONF_* functions are still there, but are reimplemented to
5527 work in terms of the new functions. Also, a set of functions
5528 to handle the internal storage of the configuration data is
5529 provided to make it easier to write new configuration file
5530 reader "classes" (I can definitely see something reading a
5531 configuration file in XML format, for example), called _CONF_*,
5532 or "the configuration storage API"...
5534 The new configuration file reading functions are:
5536 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5537 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5539 NCONF_default, NCONF_WIN32
5541 NCONF_dump_fp, NCONF_dump_bio
5543 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5544 NCONF_new creates a new CONF object. This works in the same way
5545 as other interfaces in OpenSSL, like the BIO interface.
5546 NCONF_dump_* dump the internal storage of the configuration file,
5547 which is useful for debugging. All other functions take the same
5548 arguments as the old CONF_* functions wth the exception of the
5549 first that must be a `CONF *' instead of a `LHASH *'.
5551 To make it easer to use the new classes with the old CONF_* functions,
5552 the function CONF_set_default_method is provided.
5555 *) Add '-tls1' option to 'openssl ciphers', which was already
5556 mentioned in the documentation but had not been implemented.
5557 (This option is not yet really useful because even the additional
5558 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5561 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5562 OpenSSL-based applications) load shared libraries and bind to
5563 them in a portable way.
5564 [Geoff Thorpe, with contributions from Richard Levitte]
5566 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5568 *) Make sure _lrotl and _lrotr are only used with MSVC.
5570 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5571 (the default implementation of RAND_status).
5573 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5574 to '-clrext' (= clear extensions), as intended and documented.
5575 [Bodo Moeller; inconsistency pointed out by Michael Attili
5578 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5579 was larger than the MD block size.
5580 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5582 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5583 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5584 using the passed key: if the passed key was a private key the result
5585 of X509_print(), for example, would be to print out all the private key
5589 *) des_quad_cksum() byte order bug fix.
5590 [Ulf Möller, using the problem description in krb4-0.9.7, where
5591 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5593 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5595 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5597 *) For easily testing in shell scripts whether some command
5598 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5599 returns with exit code 0 iff no command of the given name is available.
5600 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5601 the output goes to stdout and nothing is printed to stderr.
5602 Additional arguments are always ignored.
5604 Since for each cipher there is a command of the same name,
5605 the 'no-cipher' compilation switches can be tested this way.
5607 ('openssl no-XXX' is not able to detect pseudo-commands such
5608 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5611 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5614 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5615 is set; it will be thrown away anyway because each handshake creates
5617 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5618 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5619 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5620 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5623 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5624 'Q' and 'R' lose their special meanings (quit/renegotiate).
5625 This is part of what -quiet does; unlike -quiet, -ign_eof
5626 does not suppress any output.
5629 *) Add compatibility options to the purpose and trust code. The
5630 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5631 accepts a certificate or CA, this was the previous behaviour,
5632 with all the associated security issues.
5634 X509_TRUST_COMPAT is the old trust behaviour: only and
5635 automatically trust self signed roots in certificate store. A
5636 new trust setting X509_TRUST_DEFAULT is used to specify that
5637 a purpose has no associated trust setting and it should instead
5638 use the value in the default purpose.
5641 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5642 and fix a memory leak.
5645 *) In util/mkerr.pl (which implements 'make errors'), preserve
5646 reason strings from the previous version of the .c file, as
5647 the default to have only downcase letters (and digits) in
5648 automatically generated reasons codes is not always appropriate.
5651 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5652 using strerror. Previously, ERR_reason_error_string() returned
5653 library names as reason strings for SYSerr; but SYSerr is a special
5654 case where small numbers are errno values, not library numbers.
5657 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5658 converts DSA parameters into DH parameters. (When creating parameters,
5659 DSA_generate_parameters is used.)
5662 *) Include 'length' (recommended exponent length) in C code generated
5663 by 'openssl dhparam -C'.
5666 *) The second argument to set_label in perlasm was already being used
5667 so couldn't be used as a "file scope" flag. Moved to third argument
5671 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5672 instead of RAND_bytes for encryption IVs and salts.
5675 *) Include RAND_status() into RAND_METHOD instead of implementing
5676 it only for md_rand.c Otherwise replacing the PRNG by calling
5677 RAND_set_rand_method would be impossible.
5680 *) Don't let DSA_generate_key() enter an infinite loop if the random
5681 number generation fails.
5684 *) New 'rand' application for creating pseudo-random output.
5687 *) Added configuration support for Linux/IA64
5688 [Rolf Haberrecker <rolf@suse.de>]
5690 *) Assembler module support for Mingw32.
5693 *) Shared library support for HPUX (in shlib/).
5694 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5696 *) Shared library support for Solaris gcc.
5697 [Lutz Behnke <behnke@trustcenter.de>]
5699 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5701 *) PKCS7_encrypt() was adding text MIME headers twice because they
5702 were added manually and by SMIME_crlf_copy().
5705 *) In bntest.c don't call BN_rand with zero bits argument.
5706 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5708 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5709 case was implemented. This caused BN_div_recp() to fail occasionally.
5712 *) Add an optional second argument to the set_label() in the perl
5713 assembly language builder. If this argument exists and is set
5714 to 1 it signals that the assembler should use a symbol whose
5715 scope is the entire file, not just the current function. This
5716 is needed with MASM which uses the format label:: for this scope.
5717 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5719 *) Change the ASN1 types so they are typedefs by default. Before
5720 almost all types were #define'd to ASN1_STRING which was causing
5721 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5725 *) Change names of new functions to the new get1/get0 naming
5726 convention: After 'get1', the caller owns a reference count
5727 and has to call ..._free; 'get0' returns a pointer to some
5728 data structure without incrementing reference counters.
5729 (Some of the existing 'get' functions increment a reference
5730 counter, some don't.)
5731 Similarly, 'set1' and 'add1' functions increase reference
5732 counters or duplicate objects.
5735 *) Allow for the possibility of temp RSA key generation failure:
5736 the code used to assume it always worked and crashed on failure.
5739 *) Fix potential buffer overrun problem in BIO_printf().
5740 [Ulf Möller, using public domain code by Patrick Powell; problem
5741 pointed out by David Sacerdote <das33@cornell.edu>]
5743 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5744 RAND_egd() and RAND_status(). In the command line application,
5745 the EGD socket can be specified like a seed file using RANDFILE
5749 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5750 Some CAs (e.g. Verisign) distribute certificates in this form.
5753 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5754 list to exclude them. This means that no special compilation option
5755 is needed to use anonymous DH: it just needs to be included in the
5759 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5760 EVP_MD_type. The old functionality is available in a new macro called
5761 EVP_MD_md(). Change code that uses it and update docs.
5764 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5765 where the 'void *' argument is replaced by a function pointer argument.
5766 Previously 'void *' was abused to point to functions, which works on
5767 many platforms, but is not correct. As these functions are usually
5768 called by macros defined in OpenSSL header files, most source code
5769 should work without changes.
5772 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5773 sections with information on -D... compiler switches used for
5774 compiling the library so that applications can see them. To enable
5775 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5776 must be defined. E.g.,
5777 #define OPENSSL_ALGORITHM_DEFINES
5778 #include <openssl/opensslconf.h>
5779 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5780 [Richard Levitte, Ulf and Bodo Möller]
5782 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5786 *) Change the 'other' type in certificate aux info to a STACK_OF
5787 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5788 the required ASN1 format: arbitrary types determined by an OID.
5791 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5792 argument to 'req'. This is not because the function is newer or
5793 better than others it just uses the work 'NEW' in the certificate
5794 request header lines. Some software needs this.
5797 *) Reorganise password command line arguments: now passwords can be
5798 obtained from various sources. Delete the PEM_cb function and make
5799 it the default behaviour: i.e. if the callback is NULL and the
5800 usrdata argument is not NULL interpret it as a null terminated pass
5801 phrase. If usrdata and the callback are NULL then the pass phrase
5802 is prompted for as usual.
5805 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5806 the support is automatically enabled. The resulting binaries will
5807 autodetect the card and use it if present.
5808 [Ben Laurie and Compaq Inc.]
5810 *) Work around for Netscape hang bug. This sends certificate request
5811 and server done in one record. Since this is perfectly legal in the
5812 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5813 the bugs/SSLv3 entry for more info.
5816 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5819 *) Add -rand argument to smime and pkcs12 applications and read/write
5823 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5826 *) Add command line password options to the remaining applications.
5829 *) Bug fix for BN_div_recp() for numerators with an even number of
5833 *) More tests in bntest.c, and changed test_bn output.
5836 *) ./config recognizes MacOS X now.
5839 *) Bug fix for BN_div() when the first words of num and divsor are
5840 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5843 *) Add support for various broken PKCS#8 formats, and command line
5844 options to produce them.
5847 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5848 get temporary BIGNUMs from a BN_CTX.
5851 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5855 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5856 include a #define from the old name to the new. The original intent
5857 was that statically linked binaries could for example just call
5858 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5859 link with digests. This never worked becayse SSLeay_add_all_digests()
5860 and SSLeay_add_all_ciphers() were in the same source file so calling
5861 one would link with the other. They are now in separate source files.
5864 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5867 *) Use a less unusual form of the Miller-Rabin primality test (it used
5868 a binary algorithm for exponentiation integrated into the Miller-Rabin
5869 loop, our standard modexp algorithms are faster).
5872 *) Support for the EBCDIC character set completed.
5873 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5875 *) Source code cleanups: use const where appropriate, eliminate casts,
5876 use void * instead of char * in lhash.
5879 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5880 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5881 this the server could overwrite ephemeral keys that the client
5885 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5886 using 50 iterations of the Rabin-Miller test.
5888 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5889 iterations of the Rabin-Miller test as required by the appendix
5890 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5891 As BN_is_prime_fasttest includes trial division, DSA parameter
5892 generation becomes much faster.
5894 This implies a change for the callback functions in DSA_is_prime
5895 and DSA_generate_parameters: The callback function is called once
5896 for each positive witness in the Rabin-Miller test, not just
5897 occasionally in the inner loop; and the parameters to the
5898 callback function now provide an iteration count for the outer
5899 loop rather than for the current invocation of the inner loop.
5900 DSA_generate_parameters additionally can call the callback
5901 function with an 'iteration count' of -1, meaning that a
5902 candidate has passed the trial division test (when q is generated
5903 from an application-provided seed, trial division is skipped).
5906 *) New function BN_is_prime_fasttest that optionally does trial
5907 division before starting the Rabin-Miller test and has
5908 an additional BN_CTX * argument (whereas BN_is_prime always
5909 has to allocate at least one BN_CTX).
5910 'callback(1, -1, cb_arg)' is called when a number has passed the
5911 trial division stage.
5914 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5918 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5921 *) New function BN_pseudo_rand().
5924 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5925 bignum version of BN_from_montgomery() with the working code from
5926 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5930 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5931 made it impossible to use the same SSL_SESSION data structure in
5932 SSL2 clients in multiple threads.
5935 *) The return value of RAND_load_file() no longer counts bytes obtained
5936 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5937 to seed the PRNG (previously an explicit byte count was required).
5938 [Ulf Möller, Bodo Möller]
5940 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5941 used (char *) instead of (void *) and had casts all over the place.
5944 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5947 *) Retain source code compatibility for BN_prime_checks macro:
5948 BN_is_prime(..., BN_prime_checks, ...) now uses
5949 BN_prime_checks_for_size to determine the appropriate number of
5950 Rabin-Miller iterations.
5953 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5954 DH_CHECK_P_NOT_SAFE_PRIME.
5955 (Check if this is true? OpenPGP calls them "strong".)
5958 *) Merge the functionality of "dh" and "gendh" programs into a new program
5959 "dhparam". The old programs are retained for now but will handle DH keys
5960 (instead of parameters) in future.
5963 *) Make the ciphers, s_server and s_client programs check the return values
5964 when a new cipher list is set.
5967 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5968 ciphers. Before when the 56bit ciphers were enabled the sorting was
5971 The syntax for the cipher sorting has been extended to support sorting by
5972 cipher-strength (using the strength_bits hard coded in the tables).
5973 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5975 Fix a bug in the cipher-command parser: when supplying a cipher command
5976 string with an "undefined" symbol (neither command nor alphanumeric
5977 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5978 an error is flagged.
5980 Due to the strength-sorting extension, the code of the
5981 ssl_create_cipher_list() function was completely rearranged. I hope that
5982 the readability was also increased :-)
5983 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5985 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5986 for the first serial number and places 2 in the serial number file. This
5987 avoids problems when the root CA is created with serial number zero and
5988 the first user certificate has the same issuer name and serial number
5992 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5993 the new code. Add documentation for this stuff.
5996 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5997 X509_*() to X509at_*() on the grounds that they don't handle X509
5998 structures and behave in an analagous way to the X509v3 functions:
5999 they shouldn't be called directly but wrapper functions should be used
6002 So we also now have some wrapper functions that call the X509at functions
6003 when passed certificate requests. (TO DO: similar things can be done with
6004 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6005 things. Some of these need some d2i or i2d and print functionality
6006 because they handle more complex structures.)
6009 *) Add missing #ifndefs that caused missing symbols when building libssl
6010 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6011 NO_RSA in ssl/s2*.c.
6012 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6014 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6015 has a return value which indicates the quality of the random data
6016 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6017 error queue. New function RAND_pseudo_bytes() generates output that is
6018 guaranteed to be unique but not unpredictable. RAND_add is like
6019 RAND_seed, but takes an extra argument for an entropy estimate
6020 (RAND_seed always assumes full entropy).
6023 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6024 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6025 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6026 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6027 false-positive rate of at most 2^-80 for random input.
6030 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6033 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6034 in the 0.9.5 release), this returns the chain
6035 from an X509_CTX structure with a dup of the stack and all
6036 the X509 reference counts upped: so the stack will exist
6037 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6040 Also make SSL_SESSION_print() print out the verify return
6044 *) Add manpage for the pkcs12 command. Also change the default
6045 behaviour so MAC iteration counts are used unless the new
6046 -nomaciter option is used. This improves file security and
6047 only older versions of MSIE (4.0 for example) need it.
6050 *) Honor the no-xxx Configure options when creating .DEF files.
6053 *) Add PKCS#10 attributes to field table: challengePassword,
6054 unstructuredName and unstructuredAddress. These are taken from
6055 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6056 international characters are used.
6058 More changes to X509_ATTRIBUTE code: allow the setting of types
6059 based on strings. Remove the 'loc' parameter when adding
6060 attributes because these will be a SET OF encoding which is sorted
6064 *) Initial changes to the 'req' utility to allow request generation
6065 automation. This will allow an application to just generate a template
6066 file containing all the field values and have req construct the
6069 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6070 used all over the place including certificate requests and PKCS#7
6071 structures. They are currently handled manually where necessary with
6072 some primitive wrappers for PKCS#7. The new functions behave in a
6073 manner analogous to the X509 extension functions: they allow
6074 attributes to be looked up by NID and added.
6076 Later something similar to the X509V3 code would be desirable to
6077 automatically handle the encoding, decoding and printing of the
6078 more complex types. The string types like challengePassword can
6079 be handled by the string table functions.
6081 Also modified the multi byte string table handling. Now there is
6082 a 'global mask' which masks out certain types. The table itself
6083 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6084 is useful when for example there is only one permissible type
6085 (as in countryName) and using the mask might result in no valid
6089 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6090 SSL_get_peer_finished to allow applications to obtain the latest
6091 Finished messages sent to the peer or expected from the peer,
6092 respectively. (SSL_get_peer_finished is usually the Finished message
6093 actually received from the peer, otherwise the protocol will be aborted.)
6095 As the Finished message are message digests of the complete handshake
6096 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6097 be used for external authentication procedures when the authentication
6098 provided by SSL/TLS is not desired or is not enough.
6101 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6102 the host supports BWX extension and if Compaq C is present on the
6103 $PATH. Just exploiting of the BWX extension results in 20-30%
6104 performance kick for some algorithms, e.g. DES and RC4 to mention
6105 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6109 *) Add support for MS "fast SGC". This is arguably a violation of the
6110 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6111 weak crypto and after checking the certificate is SGC a second one
6112 with strong crypto. MS SGC stops the first handshake after receiving
6113 the server certificate message and sends a second client hello. Since
6114 a server will typically do all the time consuming operations before
6115 expecting any further messages from the client (server key exchange
6116 is the most expensive) there is little difference between the two.
6118 To get OpenSSL to support MS SGC we have to permit a second client
6119 hello message after we have sent server done. In addition we have to
6120 reset the MAC if we do get this second client hello.
6123 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6124 if a DER encoded private key is RSA or DSA traditional format. Changed
6125 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6126 format DER encoded private key. Newer code should use PKCS#8 format which
6127 has the key type encoded in the ASN1 structure. Added DER private key
6128 support to pkcs8 application.
6131 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6132 ciphersuites has been selected (as required by the SSL 3/TLS 1
6133 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6134 is set, we interpret this as a request to violate the specification
6135 (the worst that can happen is a handshake failure, and 'correct'
6136 behaviour would result in a handshake failure anyway).
6139 *) In SSL_CTX_add_session, take into account that there might be multiple
6140 SSL_SESSION structures with the same session ID (e.g. when two threads
6141 concurrently obtain them from an external cache).
6142 The internal cache can handle only one SSL_SESSION with a given ID,
6143 so if there's a conflict, we now throw out the old one to achieve
6147 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6148 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6149 some routines that use cipher OIDs: some ciphers do not have OIDs
6150 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6154 *) Simplify the trust setting structure and code. Now we just have
6155 two sequences of OIDs for trusted and rejected settings. These will
6156 typically have values the same as the extended key usage extension
6157 and any application specific purposes.
6159 The trust checking code now has a default behaviour: it will just
6160 check for an object with the same NID as the passed id. Functions can
6161 be provided to override either the default behaviour or the behaviour
6162 for a given id. SSL client, server and email already have functions
6163 in place for compatibility: they check the NID and also return "trusted"
6164 if the certificate is self signed.
6167 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6168 traditional format into an EVP_PKEY structure.
6171 *) Add a password callback function PEM_cb() which either prompts for
6172 a password if usr_data is NULL or otherwise assumes it is a null
6173 terminated password. Allow passwords to be passed on command line
6174 environment or config files in a few more utilities.
6177 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6178 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6179 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6180 Update documentation.
6183 *) Support for ASN1 "NULL" type. This could be handled before by using
6184 ASN1_TYPE but there wasn't any function that would try to read a NULL
6185 and produce an error if it couldn't. For compatibility we also have
6186 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6187 don't allocate anything because they don't need to.
6190 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6192 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6194 *) Rebuild of the memory allocation routines used by OpenSSL code and
6195 possibly others as well. The purpose is to make an interface that
6196 provide hooks so anyone can build a separate set of allocation and
6197 deallocation routines to be used by OpenSSL, for example memory
6198 pool implementations, or something else, which was previously hard
6199 since Malloc(), Realloc() and Free() were defined as macros having
6200 the values malloc, realloc and free, respectively (except for Win32
6201 compilations). The same is provided for memory debugging code.
6202 OpenSSL already comes with functionality to find memory leaks, but
6203 this gives people a chance to debug other memory problems.
6205 With these changes, a new set of functions and macros have appeared:
6207 CRYPTO_set_mem_debug_functions() [F]
6208 CRYPTO_get_mem_debug_functions() [F]
6209 CRYPTO_dbg_set_options() [F]
6210 CRYPTO_dbg_get_options() [F]
6211 CRYPTO_malloc_debug_init() [M]
6213 The memory debug functions are NULL by default, unless the library
6214 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6215 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6216 gives the standard debugging functions that come with OpenSSL) or
6217 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6218 provided by the library user) must be used. When the standard
6219 debugging functions are used, CRYPTO_dbg_set_options can be used to
6220 request additional information:
6221 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6222 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6224 Also, things like CRYPTO_set_mem_functions will always give the
6225 expected result (the new set of functions is used for allocation
6226 and deallocation) at all times, regardless of platform and compiler
6229 To finish it up, some functions that were never use in any other
6230 way than through macros have a new API and new semantic:
6233 CRYPTO_dbg_realloc()
6236 All macros of value have retained their old syntax.
6237 [Richard Levitte and Bodo Moeller]
6239 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6240 ordering of SMIMECapabilities wasn't in "strength order" and there
6241 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6245 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6246 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6247 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6249 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6250 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6251 functionality to handle multipart/signed properly) and a utility
6252 called 'smime' to call all this stuff. This is based on code I
6253 originally wrote for Celo who have kindly allowed it to be
6254 included in OpenSSL.
6257 *) Add variants des_set_key_checked and des_set_key_unchecked of
6258 des_set_key (aka des_key_sched). Global variable des_check_key
6259 decides which of these is called by des_set_key; this way
6260 des_check_key behaves as it always did, but applications and
6261 the library itself, which was buggy for des_check_key == 1,
6262 have a cleaner way to pick the version they need.
6265 *) New function PKCS12_newpass() which changes the password of a
6269 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6270 dynamic mix. In both cases the ids can be used as an index into the
6271 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6272 functions so they accept a list of the field values and the
6273 application doesn't need to directly manipulate the X509_TRUST
6277 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6281 *) Modify the way the V3 extension code looks up extensions. This now
6282 works in a similar way to the object code: we have some "standard"
6283 extensions in a static table which is searched with OBJ_bsearch()
6284 and the application can add dynamic ones if needed. The file
6285 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6286 updated whenever a new extension is added to the core code and kept
6287 in ext_nid order. There is a simple program 'tabtest.c' which checks
6288 this. New extensions are not added too often so this file can readily
6289 be maintained manually.
6291 There are two big advantages in doing things this way. The extensions
6292 can be looked up immediately and no longer need to be "added" using
6293 X509V3_add_standard_extensions(): this function now does nothing.
6294 [Side note: I get *lots* of email saying the extension code doesn't
6295 work because people forget to call this function]
6296 Also no dynamic allocation is done unless new extensions are added:
6297 so if we don't add custom extensions there is no need to call
6298 X509V3_EXT_cleanup().
6301 *) Modify enc utility's salting as follows: make salting the default. Add a
6302 magic header, so unsalted files fail gracefully instead of just decrypting
6303 to garbage. This is because not salting is a big security hole, so people
6304 should be discouraged from doing it.
6307 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6308 digest to be passed on the command line but it only used this
6309 parameter when signing a certificate. Modified so all relevant
6310 operations are affected by the digest parameter including the
6311 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6312 DSA key was used because it didn't fix the digest.
6315 *) Initial certificate chain verify code. Currently tests the untrusted
6316 certificates for consistency with the verify purpose (which is set
6317 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6319 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6320 this is because it will reject chains with invalid extensions whereas
6321 every previous version of OpenSSL and SSLeay made no checks at all.
6323 Trust code: checks the root CA for the relevant trust settings. Trust
6324 settings have an initial value consistent with the verify purpose: e.g.
6325 if the verify purpose is for SSL client use it expects the CA to be
6326 trusted for SSL client use. However the default value can be changed to
6327 permit custom trust settings: one example of this would be to only trust
6328 certificates from a specific "secure" set of CAs.
6330 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6331 which should be used for version portability: especially since the
6332 verify structure is likely to change more often now.
6334 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6335 to set them. If not set then assume SSL clients will verify SSL servers
6338 Two new options to the verify program: -untrusted allows a set of
6339 untrusted certificates to be passed in and -purpose which sets the
6340 intended purpose of the certificate. If a purpose is set then the
6341 new chain verify code is used to check extension consistency.
6344 *) Support for the authority information access extension.
6347 *) Modify RSA and DSA PEM read routines to transparently handle
6348 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6349 public keys in a format compatible with certificate
6350 SubjectPublicKeyInfo structures. Unfortunately there were already
6351 functions called *_PublicKey_* which used various odd formats so
6352 these are retained for compatibility: however the DSA variants were
6353 never in a public release so they have been deleted. Changed dsa/rsa
6354 utilities to handle the new format: note no releases ever handled public
6355 keys so we should be OK.
6357 The primary motivation for this change is to avoid the same fiasco
6358 that dogs private keys: there are several incompatible private key
6359 formats some of which are standard and some OpenSSL specific and
6360 require various evil hacks to allow partial transparent handling and
6361 even then it doesn't work with DER formats. Given the option anything
6362 other than PKCS#8 should be dumped: but the other formats have to
6363 stay in the name of compatibility.
6365 With public keys and the benefit of hindsight one standard format
6366 is used which works with EVP_PKEY, RSA or DSA structures: though
6367 it clearly returns an error if you try to read the wrong kind of key.
6369 Added a -pubkey option to the 'x509' utility to output the public key.
6370 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6371 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6372 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6373 that do the same as the EVP_PKEY_assign_*() except they up the
6374 reference count of the added key (they don't "swallow" the
6378 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6379 CRLs would fail if the file contained no certificates or no CRLs:
6380 added a new function to read in both types and return the number
6381 read: this means that if none are read it will be an error. The
6382 DER versions of the certificate and CRL reader would always fail
6383 because it isn't possible to mix certificates and CRLs in DER format
6384 without choking one or the other routine. Changed this to just read
6385 a certificate: this is the best we can do. Also modified the code
6386 in apps/verify.c to take notice of return codes: it was previously
6387 attempting to read in certificates from NULL pointers and ignoring
6388 any errors: this is one reason why the cert and CRL reader seemed
6389 to work. It doesn't check return codes from the default certificate
6390 routines: these may well fail if the certificates aren't installed.
6393 *) Code to support otherName option in GeneralName.
6396 *) First update to verify code. Change the verify utility
6397 so it warns if it is passed a self signed certificate:
6398 for consistency with the normal behaviour. X509_verify
6399 has been modified to it will now verify a self signed
6400 certificate if *exactly* the same certificate appears
6401 in the store: it was previously impossible to trust a
6402 single self signed certificate. This means that:
6403 openssl verify ss.pem
6404 now gives a warning about a self signed certificate but
6405 openssl verify -CAfile ss.pem ss.pem
6409 *) For servers, store verify_result in SSL_SESSION data structure
6410 (and add it to external session representation).
6411 This is needed when client certificate verifications fails,
6412 but an application-provided verification callback (set by
6413 SSL_CTX_set_cert_verify_callback) allows accepting the session
6414 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6415 but returns 1): When the session is reused, we have to set
6416 ssl->verify_result to the appropriate error code to avoid
6418 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6420 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6421 case in PKCS7_dataInit() where the signed PKCS7 structure
6422 didn't contain any existing data because it was being created.
6423 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6425 *) Add a salt to the key derivation routines in enc.c. This
6426 forms the first 8 bytes of the encrypted file. Also add a
6427 -S option to allow a salt to be input on the command line.
6430 *) New function X509_cmp(). Oddly enough there wasn't a function
6431 to compare two certificates. We do this by working out the SHA1
6432 hash and comparing that. X509_cmp() will be needed by the trust
6436 *) SSL_get1_session() is like SSL_get_session(), but increments
6437 the reference count in the SSL_SESSION returned.
6438 [Geoff Thorpe <geoff@eu.c2.net>]
6440 *) Fix for 'req': it was adding a null to request attributes.
6441 Also change the X509_LOOKUP and X509_INFO code to handle
6442 certificate auxiliary information.
6445 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6449 *) Add the possibility to add extra information to the memory leak
6450 detecting output, to form tracebacks, showing from where each
6451 allocation was originated: CRYPTO_push_info("constant string") adds
6452 the string plus current file name and line number to a per-thread
6453 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6454 is like calling CYRPTO_pop_info() until the stack is empty.
6455 Also updated memory leak detection code to be multi-thread-safe.
6458 *) Add options -text and -noout to pkcs7 utility and delete the
6459 encryption options which never did anything. Update docs.
6462 *) Add options to some of the utilities to allow the pass phrase
6463 to be included on either the command line (not recommended on
6464 OSes like Unix) or read from the environment. Update the
6465 manpages and fix a few bugs.
6468 *) Add a few manpages for some of the openssl commands.
6471 *) Fix the -revoke option in ca. It was freeing up memory twice,
6472 leaking and not finding already revoked certificates.
6475 *) Extensive changes to support certificate auxiliary information.
6476 This involves the use of X509_CERT_AUX structure and X509_AUX
6477 functions. An X509_AUX function such as PEM_read_X509_AUX()
6478 can still read in a certificate file in the usual way but it
6479 will also read in any additional "auxiliary information". By
6480 doing things this way a fair degree of compatibility can be
6481 retained: existing certificates can have this information added
6482 using the new 'x509' options.
6484 Current auxiliary information includes an "alias" and some trust
6485 settings. The trust settings will ultimately be used in enhanced
6486 certificate chain verification routines: currently a certificate
6487 can only be trusted if it is self signed and then it is trusted
6491 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6492 The problem was that one of the replacement routines had not been working
6493 since SSLeay releases. For now the offending routine has been replaced
6494 with non-optimised assembler. Even so, this now gives around 95%
6495 performance improvement for 1024 bit RSA signs.
6498 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6499 handling. Most clients have the effective key size in bits equal to
6500 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6501 A few however don't do this and instead use the size of the decrypted key
6502 to determine the RC2 key length and the AlgorithmIdentifier to determine
6503 the effective key length. In this case the effective key length can still
6504 be 40 bits but the key length can be 168 bits for example. This is fixed
6505 by manually forcing an RC2 key into the EVP_PKEY structure because the
6506 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6507 the key length and effective key length are equal.
6510 *) Add a bunch of functions that should simplify the creation of
6511 X509_NAME structures. Now you should be able to do:
6512 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6513 and have it automatically work out the correct field type and fill in
6514 the structures. The more adventurous can try:
6515 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6516 and it will (hopefully) work out the correct multibyte encoding.
6519 *) Change the 'req' utility to use the new field handling and multibyte
6520 copy routines. Before the DN field creation was handled in an ad hoc
6521 way in req, ca, and x509 which was rather broken and didn't support
6522 BMPStrings or UTF8Strings. Since some software doesn't implement
6523 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6524 using the dirstring_type option. See the new comment in the default
6525 openssl.cnf for more info.
6528 *) Make crypto/rand/md_rand.c more robust:
6529 - Assure unique random numbers after fork().
6530 - Make sure that concurrent threads access the global counter and
6531 md serializably so that we never lose entropy in them
6532 or use exactly the same state in multiple threads.
6533 Access to the large state is not always serializable because
6534 the additional locking could be a performance killer, and
6535 md should be large enough anyway.
6538 *) New file apps/app_rand.c with commonly needed functionality
6539 for handling the random seed file.
6541 Use the random seed file in some applications that previously did not:
6543 dsaparam -genkey (which also ignored its '-rand' option),
6546 x509 (when signing).
6547 Except on systems with /dev/urandom, it is crucial to have a random
6548 seed file at least for key creation, DSA signing, and for DH exchanges;
6549 for RSA signatures we could do without one.
6551 gendh and gendsa (unlike genrsa) used to read only the first byte
6552 of each file listed in the '-rand' option. The function as previously
6553 found in genrsa is now in app_rand.c and is used by all programs
6554 that support '-rand'.
6557 *) In RAND_write_file, use mode 0600 for creating files;
6558 don't just chmod when it may be too late.
6561 *) Report an error from X509_STORE_load_locations
6562 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6565 *) New function ASN1_mbstring_copy() this copies a string in either
6566 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6567 into an ASN1_STRING type. A mask of permissible types is passed
6568 and it chooses the "minimal" type to use or an error if not type
6572 *) Add function equivalents to the various macros in asn1.h. The old
6573 macros are retained with an M_ prefix. Code inside the library can
6574 use the M_ macros. External code (including the openssl utility)
6575 should *NOT* in order to be "shared library friendly".
6578 *) Add various functions that can check a certificate's extensions
6579 to see if it usable for various purposes such as SSL client,
6580 server or S/MIME and CAs of these types. This is currently
6581 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6582 verification. Also added a -purpose flag to x509 utility to
6583 print out all the purposes.
6586 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6590 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6591 for, obtain and decode and extension and obtain its critical flag.
6592 This allows all the necessary extension code to be handled in a
6593 single function call.
6596 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6597 platforms. See crypto/rc4/rc4_enc.c for further details.
6600 *) New -noout option to asn1parse. This causes no output to be produced
6601 its main use is when combined with -strparse and -out to extract data
6602 from a file (which may not be in ASN.1 format).
6605 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6606 when producing the local key id.
6607 [Richard Levitte <levitte@stacken.kth.se>]
6609 *) New option -dhparam in s_server. This allows a DH parameter file to be
6610 stated explicitly. If it is not stated then it tries the first server
6611 certificate file. The previous behaviour hard coded the filename
6615 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6616 a public key to be input or output. For example:
6617 openssl rsa -in key.pem -pubout -out pubkey.pem
6618 Also added necessary DSA public key functions to handle this.
6621 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6622 in the message. This was handled by allowing
6623 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6624 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6626 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6627 to the end of the strings whereas this didn't. This would cause problems
6628 if strings read with d2i_ASN1_bytes() were later modified.
6629 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6631 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6632 data and it contains EOF it will end up returning an error. This is
6633 caused by input 46 bytes long. The cause is due to the way base64
6634 BIOs find the start of base64 encoded data. They do this by trying a
6635 trial decode on each line until they find one that works. When they
6636 do a flag is set and it starts again knowing it can pass all the
6637 data directly through the decoder. Unfortunately it doesn't reset
6638 the context it uses. This means that if EOF is reached an attempt
6639 is made to pass two EOFs through the context and this causes the
6640 resulting error. This can also cause other problems as well. As is
6641 usual with these problems it takes *ages* to find and the fix is
6642 trivial: move one line.
6643 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6645 *) Ugly workaround to get s_client and s_server working under Windows. The
6646 old code wouldn't work because it needed to select() on sockets and the
6647 tty (for keypresses and to see if data could be written). Win32 only
6648 supports select() on sockets so we select() with a 1s timeout on the
6649 sockets and then see if any characters are waiting to be read, if none
6650 are present then we retry, we also assume we can always write data to
6651 the tty. This isn't nice because the code then blocks until we've
6652 received a complete line of data and it is effectively polling the
6653 keyboard at 1s intervals: however it's quite a bit better than not
6654 working at all :-) A dedicated Windows application might handle this
6655 with an event loop for example.
6658 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6659 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6660 will be called when RSA_sign() and RSA_verify() are used. This is useful
6661 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6662 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6663 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6664 This necessitated the support of an extra signature type NID_md5_sha1
6665 for SSL signatures and modifications to the SSL library to use it instead
6666 of calling RSA_public_decrypt() and RSA_private_encrypt().
6669 *) Add new -verify -CAfile and -CApath options to the crl program, these
6670 will lookup a CRL issuers certificate and verify the signature in a
6671 similar way to the verify program. Tidy up the crl program so it
6672 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6673 less strict. It will now permit CRL extensions even if it is not
6674 a V2 CRL: this will allow it to tolerate some broken CRLs.
6677 *) Initialize all non-automatic variables each time one of the openssl
6678 sub-programs is started (this is necessary as they may be started
6679 multiple times from the "OpenSSL>" prompt).
6680 [Lennart Bang, Bodo Moeller]
6682 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6683 removing all other RSA functionality (this is what NO_RSA does). This
6684 is so (for example) those in the US can disable those operations covered
6685 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6689 *) Non-copying interface to BIO pairs.
6690 (still largely untested)
6693 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6694 ASCII string. This was handled independently in various places before.
6697 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6698 UTF8 strings a character at a time.
6701 *) Use client_version from client hello to select the protocol
6702 (s23_srvr.c) and for RSA client key exchange verification
6703 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6706 *) Add various utility functions to handle SPKACs, these were previously
6707 handled by poking round in the structure internals. Added new function
6708 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6709 print, verify and generate SPKACs. Based on an original idea from
6710 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6713 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6716 *) Allow the config file extension section to be overwritten on the
6717 command line. Based on an original idea from Massimiliano Pala
6718 <madwolf@comune.modena.it>. The new option is called -extensions
6719 and can be applied to ca, req and x509. Also -reqexts to override
6720 the request extensions in req and -crlexts to override the crl extensions
6724 *) Add new feature to the SPKAC handling in ca. Now you can include
6725 the same field multiple times by preceding it by "XXXX." for example:
6728 this is the same syntax as used in the req config file.
6731 *) Allow certificate extensions to be added to certificate requests. These
6732 are specified in a 'req_extensions' option of the req section of the
6733 config file. They can be printed out with the -text option to req but
6734 are otherwise ignored at present.
6737 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6738 data read consists of only the final block it would not decrypted because
6739 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6740 A misplaced 'break' also meant the decrypted final block might not be
6741 copied until the next read.
6744 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6745 a few extra parameters to the DH structure: these will be useful if
6746 for example we want the value of 'q' or implement X9.42 DH.
6749 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6750 provides hooks that allow the default DSA functions or functions on a
6751 "per key" basis to be replaced. This allows hardware acceleration and
6752 hardware key storage to be handled without major modification to the
6753 library. Also added low level modexp hooks and CRYPTO_EX structure and
6754 associated functions.
6757 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6758 as "read only": it can't be written to and the buffer it points to will
6759 not be freed. Reading from a read only BIO is much more efficient than
6760 a normal memory BIO. This was added because there are several times when
6761 an area of memory needs to be read from a BIO. The previous method was
6762 to create a memory BIO and write the data to it, this results in two
6763 copies of the data and an O(n^2) reading algorithm. There is a new
6764 function BIO_new_mem_buf() which creates a read only memory BIO from
6765 an area of memory. Also modified the PKCS#7 routines to use read only
6769 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6770 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6771 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6772 but a retry condition occured while trying to read the rest.
6775 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6776 NID_pkcs7_encrypted by default: this was wrong since this should almost
6777 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6778 the encrypted data type: this is a more sensible place to put it and it
6779 allows the PKCS#12 code to be tidied up that duplicated this
6783 *) Changed obj_dat.pl script so it takes its input and output files on
6784 the command line. This should avoid shell escape redirection problems
6788 *) Initial support for certificate extension requests, these are included
6789 in things like Xenroll certificate requests. Included functions to allow
6790 extensions to be obtained and added.
6793 *) -crlf option to s_client and s_server for sending newlines as
6794 CRLF (as required by many protocols).
6797 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6799 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6800 [Ralf S. Engelschall]
6802 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6803 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6805 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6809 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6810 DH parameters/keys (q is lost during that conversion, but the resulting
6811 DH parameters contain its length).
6813 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6814 much faster than DH_generate_parameters (which creates parameters
6815 where p = 2*q + 1), and also the smaller q makes DH computations
6816 much more efficient (160-bit exponentiation instead of 1024-bit
6817 exponentiation); so this provides a convenient way to support DHE
6818 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6819 utter importance to use
6820 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6822 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6823 when such DH parameters are used, because otherwise small subgroup
6824 attacks may become possible!
6827 *) Avoid memory leak in i2d_DHparams.
6830 *) Allow the -k option to be used more than once in the enc program:
6831 this allows the same encrypted message to be read by multiple recipients.
6834 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6835 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6836 it will always use the numerical form of the OID, even if it has a short
6840 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6841 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6842 otherwise bn_mod_exp was called. In the case of hardware keys for example
6843 no private key components need be present and it might store extra data
6844 in the RSA structure, which cannot be accessed from bn_mod_exp.
6845 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6846 private key operations.
6849 *) Added support for SPARC Linux.
6852 *) pem_password_cb function type incompatibly changed from
6853 typedef int pem_password_cb(char *buf, int size, int rwflag);
6855 ....(char *buf, int size, int rwflag, void *userdata);
6856 so that applications can pass data to their callbacks:
6857 The PEM[_ASN1]_{read,write}... functions and macros now take an
6858 additional void * argument, which is just handed through whenever
6859 the password callback is called.
6860 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6862 New function SSL_CTX_set_default_passwd_cb_userdata.
6864 Compatibility note: As many C implementations push function arguments
6865 onto the stack in reverse order, the new library version is likely to
6866 interoperate with programs that have been compiled with the old
6867 pem_password_cb definition (PEM_whatever takes some data that
6868 happens to be on the stack as its last argument, and the callback
6869 just ignores this garbage); but there is no guarantee whatsoever that
6872 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6873 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6874 problems not only on Windows, but also on some Unix platforms.
6875 To avoid problematic command lines, these definitions are now in an
6876 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6877 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6880 *) MIPS III/IV assembler module is reimplemented.
6883 *) More DES library cleanups: remove references to srand/rand and
6884 delete an unused file.
6887 *) Add support for the the free Netwide assembler (NASM) under Win32,
6888 since not many people have MASM (ml) and it can be hard to obtain.
6889 This is currently experimental but it seems to work OK and pass all
6890 the tests. Check out INSTALL.W32 for info.
6893 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6894 without temporary keys kept an extra copy of the server key,
6895 and connections with temporary keys did not free everything in case
6899 *) New function RSA_check_key and new openssl rsa option -check
6900 for verifying the consistency of RSA keys.
6901 [Ulf Moeller, Bodo Moeller]
6903 *) Various changes to make Win32 compile work:
6904 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6905 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6906 comparison" warnings.
6907 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6910 *) Add a debugging option to PKCS#5 v2 key generation function: when
6911 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6912 derived keys are printed to stderr.
6915 *) Copy the flags in ASN1_STRING_dup().
6916 [Roman E. Pavlov <pre@mo.msk.ru>]
6918 *) The x509 application mishandled signing requests containing DSA
6919 keys when the signing key was also DSA and the parameters didn't match.
6921 It was supposed to omit the parameters when they matched the signing key:
6922 the verifying software was then supposed to automatically use the CA's
6923 parameters if they were absent from the end user certificate.
6925 Omitting parameters is no longer recommended. The test was also
6926 the wrong way round! This was probably due to unusual behaviour in
6927 EVP_cmp_parameters() which returns 1 if the parameters match.
6928 This meant that parameters were omitted when they *didn't* match and
6929 the certificate was useless. Certificates signed with 'ca' didn't have
6931 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6933 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6934 The interface is as follows:
6935 Applications can use
6936 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6937 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6938 "off" is now the default.
6939 The library internally uses
6940 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6941 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6942 to disable memory-checking temporarily.
6944 Some inconsistent states that previously were possible (and were
6945 even the default) are now avoided.
6947 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6948 with each memory chunk allocated; this is occasionally more helpful
6949 than just having a counter.
6951 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6953 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6957 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6958 which largely parallels "options", but is for changing API behaviour,
6959 whereas "options" are about protocol behaviour.
6960 Initial "mode" flags are:
6962 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6963 a single record has been written.
6964 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6965 retries use the same buffer location.
6966 (But all of the contents must be
6970 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6973 *) Fix problems with no-hmac etc.
6974 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6976 *) New functions RSA_get_default_method(), RSA_set_method() and
6977 RSA_get_method(). These allows replacement of RSA_METHODs without having
6978 to mess around with the internals of an RSA structure.
6981 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6982 Also really enable memory leak checks in openssl.c and in some
6984 [Chad C. Mulligan, Bodo Moeller]
6986 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6987 up the length of negative integers. This has now been simplified to just
6988 store the length when it is first determined and use it later, rather
6989 than trying to keep track of where data is copied and updating it to
6991 [Steve Henson, reported by Brien Wheeler
6992 <bwheeler@authentica-security.com>]
6994 *) Add a new function PKCS7_signatureVerify. This allows the verification
6995 of a PKCS#7 signature but with the signing certificate passed to the
6996 function itself. This contrasts with PKCS7_dataVerify which assumes the
6997 certificate is present in the PKCS#7 structure. This isn't always the
6998 case: certificates can be omitted from a PKCS#7 structure and be
6999 distributed by "out of band" means (such as a certificate database).
7002 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7003 function prototypes in pem.h, also change util/mkdef.pl to add the
7004 necessary function names.
7007 *) mk1mf.pl (used by Windows builds) did not properly read the
7008 options set by Configure in the top level Makefile, and Configure
7009 was not even able to write more than one option correctly.
7010 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7013 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7014 file to be loaded from a BIO or FILE pointer. The BIO version will
7015 for example allow memory BIOs to contain config info.
7018 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7019 Whoever hopes to achieve shared-library compatibility across versions
7020 must use this, not the compile-time macro.
7021 (Exercise 0.9.4: Which is the minimum library version required by
7023 Note: All this applies only to multi-threaded programs, others don't
7027 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7028 through a BIO pair triggered the default case, i.e.
7029 SSLerr(...,SSL_R_UNKNOWN_STATE).
7032 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7033 can use the SSL library even if none of the specific BIOs is
7037 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7038 for the encoded length.
7039 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7041 *) Add initial documentation of the X509V3 functions.
7044 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7045 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7046 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7047 secure PKCS#8 private key format with a high iteration count.
7050 *) Fix determination of Perl interpreter: A perl or perl5
7051 _directory_ in $PATH was also accepted as the interpreter.
7052 [Ralf S. Engelschall]
7054 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7055 wrong with it but it was very old and did things like calling
7056 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7060 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7061 to use the new extension code.
7064 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7065 with macros. This should make it easier to change their form, add extra
7066 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7070 *) Add to configuration table a new entry that can specify an alternative
7071 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7072 according to Mark Crispin <MRC@Panda.COM>.
7076 *) DES CBC did not update the IV. Weird.
7079 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7080 Changing the behaviour of the former might break existing programs --
7081 where IV updating is needed, des_ncbc_encrypt can be used.
7084 *) When bntest is run from "make test" it drives bc to check its
7085 calculations, as well as internally checking them. If an internal check
7086 fails, it needs to cause bc to give a non-zero result or make test carries
7087 on without noticing the failure. Fixed.
7090 *) DES library cleanups.
7093 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7094 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7095 ciphers. NOTE: although the key derivation function has been verified
7096 against some published test vectors it has not been extensively tested
7097 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7101 *) Instead of "mkdir -p", which is not fully portable, use new
7102 Perl script "util/mkdir-p.pl".
7105 *) Rewrite the way password based encryption (PBE) is handled. It used to
7106 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7107 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7108 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7109 the 'parameter' field of the AlgorithmIdentifier is passed to the
7110 underlying key generation function so it must do its own ASN1 parsing.
7111 This has also changed the EVP_PBE_CipherInit() function which now has a
7112 'parameter' argument instead of literal salt and iteration count values
7113 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7116 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7117 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7118 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7119 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7120 value was just used as a "magic string" and not used directly its
7121 value doesn't matter.
7124 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7128 *) "linux-sparc64" configuration (ultrapenguin).
7129 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7130 "linux-sparc" configuration.
7131 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7133 *) config now generates no-xxx options for missing ciphers.
7136 *) Support the EBCDIC character set (work in progress).
7137 File ebcdic.c not yet included because it has a different license.
7138 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7140 *) Support BS2000/OSD-POSIX.
7141 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7143 *) Make callbacks for key generation use void * instead of char *.
7146 *) Make S/MIME samples compile (not yet tested).
7149 *) Additional typesafe stacks.
7152 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7156 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7158 *) New configuration variant "sco5-gcc".
7160 *) Updated some demos.
7161 [Sean O Riordain, Wade Scholine]
7163 *) Add missing BIO_free at exit of pkcs12 application.
7166 *) Fix memory leak in conf.c.
7169 *) Updates for Win32 to assembler version of MD5.
7172 *) Set #! path to perl in apps/der_chop to where we found it
7173 instead of using a fixed path.
7176 *) SHA library changes for irix64-mips4-cc.
7179 *) Improvements for VMS support.
7183 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7185 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7186 This also avoids the problems with SC4.2 and unpatched SC5.
7187 [Andy Polyakov <appro@fy.chalmers.se>]
7189 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7190 These are required because of the typesafe stack would otherwise break
7191 existing code. If old code used a structure member which used to be STACK
7192 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7193 sk_num or sk_value it would produce an error because the num, data members
7194 are not present in STACK_OF. Now it just produces a warning. sk_set
7195 replaces the old method of assigning a value to sk_value
7196 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7197 that does this will no longer work (and should use sk_set instead) but
7198 this could be regarded as a "questionable" behaviour anyway.
7201 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7202 correctly handle encrypted S/MIME data.
7205 *) Change type of various DES function arguments from des_cblock
7206 (which means, in function argument declarations, pointer to char)
7207 to des_cblock * (meaning pointer to array with 8 char elements),
7208 which allows the compiler to do more typechecking; it was like
7209 that back in SSLeay, but with lots of ugly casts.
7211 Introduce new type const_des_cblock.
7214 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7215 problems: find RecipientInfo structure that matches recipient certificate
7216 and initialise the ASN1 structures properly based on passed cipher.
7219 *) Belatedly make the BN tests actually check the results.
7222 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7223 to and from BNs: it was completely broken. New compilation option
7224 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7225 key elements as negative integers.
7228 *) Reorganize and speed up MD5.
7229 [Andy Polyakov <appro@fy.chalmers.se>]
7232 [Richard Levitte <richard@levitte.org>]
7234 *) New option -out to asn1parse to allow the parsed structure to be
7235 output to a file. This is most useful when combined with the -strparse
7236 option to examine the output of things like OCTET STRINGS.
7239 *) Make SSL library a little more fool-proof by not requiring any longer
7240 that SSL_set_{accept,connect}_state be called before
7241 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7242 in many applications because usually everything *appeared* to work as
7243 intended anyway -- now it really works as intended).
7246 *) Move openssl.cnf out of lib/.
7249 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7250 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7251 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7252 [Ralf S. Engelschall]
7254 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7255 handle PKCS#7 enveloped data properly.
7256 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7258 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7259 copying pointers. The cert_st handling is changed by this in
7260 various ways (and thus what used to be known as ctx->default_cert
7261 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7262 any longer when s->cert does not give us what we need).
7263 ssl_cert_instantiate becomes obsolete by this change.
7264 As soon as we've got the new code right (possibly it already is?),
7265 we have solved a couple of bugs of the earlier code where s->cert
7266 was used as if it could not have been shared with other SSL structures.
7268 Note that using the SSL API in certain dirty ways now will result
7269 in different behaviour than observed with earlier library versions:
7270 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7271 does not influence s as it used to.
7273 In order to clean up things more thoroughly, inside SSL_SESSION
7274 we don't use CERT any longer, but a new structure SESS_CERT
7275 that holds per-session data (if available); currently, this is
7276 the peer's certificate chain and, for clients, the server's certificate
7277 and temporary key. CERT holds only those values that can have
7278 meaningful defaults in an SSL_CTX.
7281 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7282 from the internal representation. Various PKCS#7 fixes: remove some
7283 evil casts and set the enc_dig_alg field properly based on the signing
7287 *) Allow PKCS#12 password to be set from the command line or the
7288 environment. Let 'ca' get its config file name from the environment
7289 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7293 *) Allow certificate policies extension to use an IA5STRING for the
7294 organization field. This is contrary to the PKIX definition but
7295 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7299 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7300 without disallowing inline assembler and the like for non-pedantic builds.
7303 *) Support Borland C++ builder.
7304 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7309 *) SHA-1 cleanups and performance enhancements.
7310 [Andy Polyakov <appro@fy.chalmers.se>]
7312 *) Sparc v8plus assembler for the bignum library.
7313 [Andy Polyakov <appro@fy.chalmers.se>]
7315 *) Accept any -xxx and +xxx compiler options in Configure.
7318 *) Update HPUX configuration.
7321 *) Add missing sk_<type>_unshift() function to safestack.h
7322 [Ralf S. Engelschall]
7324 *) New function SSL_CTX_use_certificate_chain_file that sets the
7325 "extra_cert"s in addition to the certificate. (This makes sense
7326 only for "PEM" format files, as chains as a whole are not
7330 *) Support verify_depth from the SSL API.
7331 x509_vfy.c had what can be considered an off-by-one-error:
7332 Its depth (which was not part of the external interface)
7333 was actually counting the number of certificates in a chain;
7334 now it really counts the depth.
7337 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7338 instead of X509err, which often resulted in confusing error
7339 messages since the error codes are not globally unique
7340 (e.g. an alleged error in ssl3_accept when a certificate
7341 didn't match the private key).
7343 *) New function SSL_CTX_set_session_id_context that allows to set a default
7344 value (so that you don't need SSL_set_session_id_context for each
7345 connection using the SSL_CTX).
7348 *) OAEP decoding bug fix.
7351 *) Support INSTALL_PREFIX for package builders, as proposed by
7355 *) New Configure options "threads" and "no-threads". For systems
7356 where the proper compiler options are known (currently Solaris
7357 and Linux), "threads" is the default.
7360 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7363 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7364 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7365 such as /usr/local/bin.
7368 *) "make linux-shared" to build shared libraries.
7369 [Niels Poppe <niels@netbox.org>]
7371 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7374 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7375 extension adding in x509 utility.
7378 *) Remove NOPROTO sections and error code comments.
7381 *) Partial rewrite of the DEF file generator to now parse the ANSI
7385 *) New Configure options --prefix=DIR and --openssldir=DIR.
7388 *) Complete rewrite of the error code script(s). It is all now handled
7389 by one script at the top level which handles error code gathering,
7390 header rewriting and C source file generation. It should be much better
7391 than the old method: it now uses a modified version of Ulf's parser to
7392 read the ANSI prototypes in all header files (thus the old K&R definitions
7393 aren't needed for error creation any more) and do a better job of
7394 translating function codes into names. The old 'ASN1 error code imbedded
7395 in a comment' is no longer necessary and it doesn't use .err files which
7396 have now been deleted. Also the error code call doesn't have to appear all
7397 on one line (which resulted in some large lines...).
7400 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7403 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7404 0 (which usually indicates a closed connection), but continue reading.
7407 *) Fix some race conditions.
7410 *) Add support for CRL distribution points extension. Add Certificate
7411 Policies and CRL distribution points documentation.
7414 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7417 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7418 8 of keying material. Merlin has also confirmed interop with this fix
7419 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7420 [Merlin Hughes <merlin@baltimore.ie>]
7422 *) Fix lots of warnings.
7423 [Richard Levitte <levitte@stacken.kth.se>]
7425 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7426 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7427 [Richard Levitte <levitte@stacken.kth.se>]
7429 *) Fix problems with sizeof(long) == 8.
7430 [Andy Polyakov <appro@fy.chalmers.se>]
7432 *) Change functions to ANSI C.
7435 *) Fix typos in error codes.
7436 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7438 *) Remove defunct assembler files from Configure.
7441 *) SPARC v8 assembler BIGNUM implementation.
7442 [Andy Polyakov <appro@fy.chalmers.se>]
7444 *) Support for Certificate Policies extension: both print and set.
7445 Various additions to support the r2i method this uses.
7448 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7449 return a const string when you are expecting an allocated buffer.
7452 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7453 types DirectoryString and DisplayText.
7456 *) Add code to allow r2i extensions to access the configuration database,
7457 add an LHASH database driver and add several ctx helper functions.
7460 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7461 fail when they extended the size of a BIGNUM.
7464 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7465 support typesafe stack.
7468 *) Fix typo in SSL_[gs]et_options().
7469 [Nils Frostberg <nils@medcom.se>]
7471 *) Delete various functions and files that belonged to the (now obsolete)
7472 old X509V3 handling code.
7475 *) New Configure option "rsaref".
7478 *) Don't auto-generate pem.h.
7481 *) Introduce type-safe ASN.1 SETs.
7484 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7485 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7487 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7488 that links with OpenSSL (well at least cause lots of warnings), but fear
7489 not: the conversion is trivial, and it eliminates loads of evil casts. A
7490 few STACKed things have been converted already. Feel free to convert more.
7491 In the fullness of time, I'll do away with the STACK type altogether.
7494 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7495 specified in <certfile> by updating the entry in the index.txt file.
7496 This way one no longer has to edit the index.txt file manually for
7497 revoking a certificate. The -revoke option does the gory details now.
7498 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7500 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7501 `-text' option at all and this way the `-noout -text' combination was
7502 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7503 [Ralf S. Engelschall]
7505 *) Make sure a corresponding plain text error message exists for the
7506 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7507 verify callback function determined that a certificate was revoked.
7508 [Ralf S. Engelschall]
7510 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7511 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7512 all available cipers including rc5, which was forgotten until now.
7513 In order to let the testing shell script know which algorithms
7514 are available, a new (up to now undocumented) command
7515 "openssl list-cipher-commands" is used.
7518 *) Bugfix: s_client occasionally would sleep in select() when
7519 it should have checked SSL_pending() first.
7522 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7523 the raw DSA values prior to ASN.1 encoding.
7526 *) Tweaks to Configure
7527 [Niels Poppe <niels@netbox.org>]
7529 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7533 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7536 *) New config option to avoid instructions that are illegal on the 80386.
7537 The default code is faster, but requires at least a 486.
7540 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7541 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7542 same as SSL2_VERSION anyway.
7545 *) New "-showcerts" option for s_client.
7548 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7549 application. Various cleanups and fixes.
7552 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7553 modify error routines to work internally. Add error codes and PBE init
7554 to library startup routines.
7557 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7558 packing functions to asn1 and evp. Changed function names and error
7559 codes along the way.
7562 *) PKCS12 integration: and so it begins... First of several patches to
7563 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7564 objects to objects.h
7567 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7568 and display support for Thawte strong extranet extension.
7571 *) Add LinuxPPC support.
7572 [Jeff Dubrule <igor@pobox.org>]
7574 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7575 bn_div_words in alpha.s.
7576 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7578 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7579 OAEP isn't supported when OpenSSL is built with RSAref.
7580 [Ulf Moeller <ulf@fitug.de>]
7582 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7583 so they no longer are missing under -DNOPROTO.
7584 [Soren S. Jorvang <soren@t.dk>]
7587 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7589 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7590 doesn't work when the session is reused. Coming soon!
7593 *) Fix a security hole, that allows sessions to be reused in the wrong
7594 context thus bypassing client cert protection! All software that uses
7595 client certs and session caches in multiple contexts NEEDS PATCHING to
7596 allow session reuse! A fuller solution is in the works.
7597 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7599 *) Some more source tree cleanups (removed obsolete files
7600 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7601 permission on "config" script to be executable) and a fix for the INSTALL
7603 [Ulf Moeller <ulf@fitug.de>]
7605 *) Remove some legacy and erroneous uses of malloc, free instead of
7607 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7609 *) Make rsa_oaep_test return non-zero on error.
7610 [Ulf Moeller <ulf@fitug.de>]
7612 *) Add support for native Solaris shared libraries. Configure
7613 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7614 if someone would make that last step automatic.
7615 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7617 *) ctx_size was not built with the right compiler during "make links". Fixed.
7620 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7621 except NULL ciphers". This means the default cipher list will no longer
7622 enable NULL ciphers. They need to be specifically enabled e.g. with
7623 the string "DEFAULT:eNULL".
7626 *) Fix to RSA private encryption routines: if p < q then it would
7627 occasionally produce an invalid result. This will only happen with
7628 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7631 *) Be less restrictive and allow also `perl util/perlpath.pl
7632 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7633 because this way one can also use an interpreter named `perl5' (which is
7634 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7635 installed as `perl').
7636 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7638 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7639 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7641 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7642 advapi32.lib to Win32 build and change the pem test comparision
7643 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7644 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7645 and crypto/des/ede_cbcm_enc.c.
7648 *) DES quad checksum was broken on big-endian architectures. Fixed.
7651 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7652 Win32 test batch file so it (might) work again. The Win32 test batch file
7653 is horrible: I feel ill....
7656 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7657 in e_os.h. Audit of header files to check ANSI and non ANSI
7658 sections: 10 functions were absent from non ANSI section and not exported
7659 from Windows DLLs. Fixed up libeay.num for new functions.
7662 *) Make `openssl version' output lines consistent.
7663 [Ralf S. Engelschall]
7665 *) Fix Win32 symbol export lists for BIO functions: Added
7666 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7667 to ms/libeay{16,32}.def.
7668 [Ralf S. Engelschall]
7670 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7671 fine under Unix and passes some trivial tests I've now added. But the
7672 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7673 added to make sure no one expects that this stuff really works in the
7674 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7675 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7677 [Ralf S. Engelschall]
7679 *) Fix the generation of two part addresses in perl.
7680 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7682 *) Add config entry for Linux on MIPS.
7683 [John Tobey <jtobey@channel1.com>]
7685 *) Make links whenever Configure is run, unless we are on Windoze.
7688 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7689 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7693 *) Add a useful kludge to allow package maintainers to specify compiler and
7694 other platforms details on the command line without having to patch the
7695 Configure script everytime: One now can use ``perl Configure
7696 <id>:<details>'', i.e. platform ids are allowed to have details appended
7697 to them (seperated by colons). This is treated as there would be a static
7698 pre-configured entry in Configure's %table under key <id> with value
7699 <details> and ``perl Configure <id>'' is called. So, when you want to
7700 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7701 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7702 now, which overrides the FreeBSD-elf entry on-the-fly.
7703 [Ralf S. Engelschall]
7705 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7708 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7709 on the `perl Configure ...' command line. This way one can compile
7710 OpenSSL libraries with Position Independent Code (PIC) which is needed
7711 for linking it into DSOs.
7712 [Ralf S. Engelschall]
7714 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7718 *) Cleaned up the LICENSE document: The official contact for any license
7719 questions now is the OpenSSL core team under openssl-core@openssl.org.
7720 And add a paragraph about the dual-license situation to make sure people
7721 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7722 to the OpenSSL toolkit.
7723 [Ralf S. Engelschall]
7725 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7726 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7727 Additonally cleaned up the `make links' target: Remove unnecessary
7728 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7729 to speed processing and no longer clutter the display with confusing
7730 stuff. Instead only the actually done links are displayed.
7731 [Ralf S. Engelschall]
7733 *) Permit null encryption ciphersuites, used for authentication only. It used
7734 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7735 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7739 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7740 signed attributes when verifying signatures (this would break them),
7741 the detached data encoding was wrong and public keys obtained using
7742 X509_get_pubkey() weren't freed.
7745 *) Add text documentation for the BUFFER functions. Also added a work around
7746 to a Win95 console bug. This was triggered by the password read stuff: the
7747 last character typed gets carried over to the next fread(). If you were
7748 generating a new cert request using 'req' for example then the last
7749 character of the passphrase would be CR which would then enter the first
7753 *) Added the new `Includes OpenSSL Cryptography Software' button as
7754 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7755 button and can be used by applications based on OpenSSL to show the
7756 relationship to the OpenSSL project.
7757 [Ralf S. Engelschall]
7759 *) Remove confusing variables in function signatures in files
7760 ssl/ssl_lib.c and ssl/ssl.h.
7761 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7763 *) Don't install bss_file.c under PREFIX/include/
7764 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7766 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7767 functions that return function pointers and has support for NT specific
7768 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7769 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7770 unsigned to signed types: this was killing the Win32 compile.
7773 *) Add new certificate file to stack functions,
7774 SSL_add_dir_cert_subjects_to_stack() and
7775 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7776 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7777 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7778 This means that Apache-SSL and similar packages don't have to mess around
7779 to add as many CAs as they want to the preferred list.
7782 *) Experiment with doxygen documentation. Currently only partially applied to
7784 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7785 openssl.doxy as the configuration file.
7788 *) Get rid of remaining C++-style comments which strict C compilers hate.
7789 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7791 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7792 compiled in by default: it has problems with large keys.
7795 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7796 DH private keys and/or callback functions which directly correspond to
7797 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7798 is needed for applications which have to configure certificates on a
7799 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7801 For the RSA certificate situation is makes no difference, but
7802 for the DSA certificate situation this fixes the "no shared cipher"
7803 problem where the OpenSSL cipher selection procedure failed because the
7804 temporary keys were not overtaken from the context and the API provided
7805 no way to reconfigure them.
7806 The new functions now let applications reconfigure the stuff and they
7807 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7808 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7809 non-public-API function ssl_cert_instantiate() is used as a helper
7810 function and also to reduce code redundancy inside ssl_rsa.c.
7811 [Ralf S. Engelschall]
7813 *) Move s_server -dcert and -dkey options out of the undocumented feature
7814 area because they are useful for the DSA situation and should be
7815 recognized by the users.
7816 [Ralf S. Engelschall]
7818 *) Fix the cipher decision scheme for export ciphers: the export bits are
7819 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7820 SSL_EXP_MASK. So, the original variable has to be used instead of the
7821 already masked variable.
7822 [Richard Levitte <levitte@stacken.kth.se>]
7824 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7825 [Richard Levitte <levitte@stacken.kth.se>]
7827 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7828 from `int' to `unsigned int' because it's a length and initialized by
7829 EVP_DigestFinal() which expects an `unsigned int *'.
7830 [Richard Levitte <levitte@stacken.kth.se>]
7832 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7833 script. Instead use the usual Shell->Perl transition trick.
7834 [Ralf S. Engelschall]
7836 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7837 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7838 -noout -modulus' as it's already the case for `openssl rsa -noout
7839 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7840 currently the public key is printed (a decision which was already done by
7841 `openssl dsa -modulus' in the past) which serves a similar purpose.
7842 Additionally the NO_RSA no longer completely removes the whole -modulus
7843 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7845 [Ralf S. Engelschall]
7847 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7848 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7849 [Arne Ansper <arne@ats.cyber.ee>]
7851 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7852 to be added. Now both 'req' and 'ca' can use new objects defined in the
7856 *) Add cool BIO that does syslog (or event log on NT).
7857 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7859 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7860 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7861 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7862 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7865 *) Add preliminary config info for new extension code.
7868 *) Make RSA_NO_PADDING really use no padding.
7869 [Ulf Moeller <ulf@fitug.de>]
7871 *) Generate errors when private/public key check is done.
7874 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7875 for some CRL extensions and new objects added.
7878 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7879 key usage extension and fuller support for authority key id.
7882 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7883 padding method for RSA, which is recommended for new applications in PKCS
7884 #1 v2.0 (RFC 2437, October 1998).
7885 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7886 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7887 against Bleichbacher's attack on RSA.
7888 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7891 *) Updates to the new SSL compression code
7892 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7894 *) Fix so that the version number in the master secret, when passed
7895 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7896 (because the server will not accept higher), that the version number
7897 is 0x03,0x01, not 0x03,0x00
7898 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7900 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7901 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7902 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7905 *) Support for RAW extensions where an arbitrary extension can be
7906 created by including its DER encoding. See apps/openssl.cnf for
7910 *) Make sure latest Perl versions don't interpret some generated C array
7911 code as Perl array code in the crypto/err/err_genc.pl script.
7912 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7914 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7915 not many people have the assembler. Various Win32 compilation fixes and
7916 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7920 *) Modify configure script 'Configure' to automatically create crypto/date.h
7921 file under Win32 and also build pem.h from pem.org. New script
7922 util/mkfiles.pl to create the MINFO file on environments that can't do a
7923 'make files': perl util/mkfiles.pl >MINFO should work.
7926 *) Major rework of DES function declarations, in the pursuit of correctness
7927 and purity. As a result, many evil casts evaporated, and some weirdness,
7928 too. You may find this causes warnings in your code. Zapping your evil
7929 casts will probably fix them. Mostly.
7932 *) Fix for a typo in asn1.h. Bug fix to object creation script
7933 obj_dat.pl. It considered a zero in an object definition to mean
7934 "end of object": none of the objects in objects.h have any zeros
7935 so it wasn't spotted.
7936 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7938 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7939 Masking (CBCM). In the absence of test vectors, the best I have been able
7940 to do is check that the decrypt undoes the encrypt, so far. Send me test
7941 vectors if you have them.
7944 *) Correct calculation of key length for export ciphers (too much space was
7945 allocated for null ciphers). This has not been tested!
7948 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7949 message is now correct (it understands "crypto" and "ssl" on its
7950 command line). There is also now an "update" option. This will update
7951 the util/ssleay.num and util/libeay.num files with any new functions.
7953 perl util/mkdef.pl crypto ssl update
7954 it will update them.
7957 *) Overhauled the Perl interface (perl/*):
7958 - ported BN stuff to OpenSSL's different BN library
7959 - made the perl/ source tree CVS-aware
7960 - renamed the package from SSLeay to OpenSSL (the files still contain
7961 their history because I've copied them in the repository)
7962 - removed obsolete files (the test scripts will be replaced
7963 by better Test::Harness variants in the future)
7964 [Ralf S. Engelschall]
7966 *) First cut for a very conservative source tree cleanup:
7967 1. merge various obsolete readme texts into doc/ssleay.txt
7968 where we collect the old documents and readme texts.
7969 2. remove the first part of files where I'm already sure that we no
7970 longer need them because of three reasons: either they are just temporary
7971 files which were left by Eric or they are preserved original files where
7972 I've verified that the diff is also available in the CVS via "cvs diff
7973 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7974 the crypto/md/ stuff).
7975 [Ralf S. Engelschall]
7977 *) More extension code. Incomplete support for subject and issuer alt
7978 name, issuer and authority key id. Change the i2v function parameters
7979 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7980 what that's for :-) Fix to ASN1 macro which messed up
7981 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7984 *) Preliminary support for ENUMERATED type. This is largely copied from the
7988 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7989 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7991 *) Make sure `make rehash' target really finds the `openssl' program.
7992 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7994 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7995 like to hear about it if this slows down other processors.
7998 *) Add CygWin32 platform information to Configure script.
7999 [Alan Batie <batie@aahz.jf.intel.com>]
8001 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8002 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8004 *) New program nseq to manipulate netscape certificate sequences
8007 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8011 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8012 but the BN code had some problems that would cause failures when
8013 doing certificate verification and some other functions.
8014 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8016 *) Add ASN1 and PEM code to support netscape certificate sequences.
8019 *) Add ASN1 and PEM code to support netscape certificate sequences.
8022 *) Add several PKIX and private extended key usage OIDs.
8025 *) Modify the 'ca' program to handle the new extension code. Modify
8026 openssl.cnf for new extension format, add comments.
8029 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8030 and add a sample to openssl.cnf so req -x509 now adds appropriate
8034 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8035 error code, add initial support to X509_print() and x509 application.
8038 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8039 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8040 stuff is currently isolated and isn't even compiled yet.
8043 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8044 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8045 Removed the versions check from X509 routines when loading extensions:
8046 this allows certain broken certificates that don't set the version
8047 properly to be processed.
8050 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8051 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8052 can still be regenerated with "make depend".
8055 *) Spelling mistake in C version of CAST-128.
8056 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8058 *) Changes to the error generation code. The perl script err-code.pl
8059 now reads in the old error codes and retains the old numbers, only
8060 adding new ones if necessary. It also only changes the .err files if new
8061 codes are added. The makefiles have been modified to only insert errors
8062 when needed (to avoid needlessly modifying header files). This is done
8063 by only inserting errors if the .err file is newer than the auto generated
8064 C file. To rebuild all the error codes from scratch (the old behaviour)
8065 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8066 or delete all the .err files.
8069 *) CAST-128 was incorrectly implemented for short keys. The C version has
8070 been fixed, but is untested. The assembler versions are also fixed, but
8071 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8072 to regenerate it if needed.
8073 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8074 Hagino <itojun@kame.net>]
8076 *) File was opened incorrectly in randfile.c.
8077 [Ulf Möller <ulf@fitug.de>]
8079 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8080 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8081 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8082 al: it's just almost always a UTCTime. Note this patch adds new error
8083 codes so do a "make errors" if there are problems.
8086 *) Correct Linux 1 recognition in config.
8087 [Ulf Möller <ulf@fitug.de>]
8089 *) Remove pointless MD5 hash when using DSA keys in ca.
8090 [Anonymous <nobody@replay.com>]
8092 *) Generate an error if given an empty string as a cert directory. Also
8093 generate an error if handed NULL (previously returned 0 to indicate an
8094 error, but didn't set one).
8095 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8097 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8100 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8101 parameters. This was causing a warning which killed off the Win32 compile.
8104 *) Remove C++ style comments from crypto/bn/bn_local.h.
8105 [Neil Costigan <neil.costigan@celocom.com>]
8107 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8108 based on a text string, looking up short and long names and finally
8109 "dot" format. The "dot" format stuff didn't work. Added new function
8110 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8111 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8112 OID is not part of the table.
8115 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8116 X509_LOOKUP_by_alias().
8119 *) Sort openssl functions by name.
8122 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8123 encryption from sample DSA keys (in case anyone is interested the password
8127 *) Make _all_ *_free functions accept a NULL pointer.
8128 [Frans Heymans <fheymans@isaserver.be>]
8130 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8132 [Anonymous <nobody@replay.com>]
8134 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8135 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8137 *) Don't blow it for numeric -newkey arguments to apps/req.
8138 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8140 *) Temp key "for export" tests were wrong in s3_srvr.c.
8141 [Anonymous <nobody@replay.com>]
8143 *) Add prototype for temp key callback functions
8144 SSL_CTX_set_tmp_{rsa,dh}_callback().
8147 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8148 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8151 *) X509_name_add_entry() freed the wrong thing after an error.
8152 [Arne Ansper <arne@ats.cyber.ee>]
8154 *) rsa_eay.c would attempt to free a NULL context.
8155 [Arne Ansper <arne@ats.cyber.ee>]
8157 *) BIO_s_socket() had a broken should_retry() on Windoze.
8158 [Arne Ansper <arne@ats.cyber.ee>]
8160 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8161 [Arne Ansper <arne@ats.cyber.ee>]
8163 *) Make sure the already existing X509_STORE->depth variable is initialized
8164 in X509_STORE_new(), but document the fact that this variable is still
8165 unused in the certificate verification process.
8166 [Ralf S. Engelschall]
8168 *) Fix the various library and apps files to free up pkeys obtained from
8169 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8172 *) Fix reference counting in X509_PUBKEY_get(). This makes
8173 demos/maurice/example2.c work, amongst others, probably.
8174 [Steve Henson and Ben Laurie]
8176 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8177 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8178 are no longer created. This way we have a single and consistent command
8179 line interface `openssl <command>', similar to `cvs <command>'.
8180 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8182 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8183 BIT STRING wrapper always have zero unused bits.
8186 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8189 *) Make the top-level INSTALL documentation easier to understand.
8192 *) Makefiles updated to exit if an error occurs in a sub-directory
8193 make (including if user presses ^C) [Paul Sutton]
8195 *) Make Montgomery context stuff explicit in RSA data structure.
8198 *) Fix build order of pem and err to allow for generated pem.h.
8201 *) Fix renumbering bug in X509_NAME_delete_entry().
8204 *) Enhanced the err-ins.pl script so it makes the error library number
8205 global and can add a library name. This is needed for external ASN1 and
8206 other error libraries.
8209 *) Fixed sk_insert which never worked properly.
8212 *) Fix ASN1 macros so they can handle indefinite length construted
8213 EXPLICIT tags. Some non standard certificates use these: they can now
8217 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8218 into a single doc/ssleay.txt bundle. This way the information is still
8219 preserved but no longer messes up this directory. Now it's new room for
8220 the new set of documenation files.
8221 [Ralf S. Engelschall]
8223 *) SETs were incorrectly DER encoded. This was a major pain, because they
8224 shared code with SEQUENCEs, which aren't coded the same. This means that
8225 almost everything to do with SETs or SEQUENCEs has either changed name or
8226 number of arguments.
8227 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8229 *) Fix test data to work with the above.
8232 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8233 was already fixed by Eric for 0.9.1 it seems.
8234 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8236 *) Autodetect FreeBSD3.
8239 *) Fix various bugs in Configure. This affects the following platforms:
8243 unixware-2.0-pentium
8247 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8248 before they are needed.
8251 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8255 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8257 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8258 changed SSLeay to OpenSSL in version strings.
8259 [Ralf S. Engelschall]
8261 *) Some fixups to the top-level documents.
8264 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8265 because the symlink to include/ was missing.
8266 [Ralf S. Engelschall]
8268 *) Incorporated the popular no-RSA/DSA-only patches
8269 which allow to compile a RSA-free SSLeay.
8270 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8272 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8273 when "ssleay" is still not found.
8274 [Ralf S. Engelschall]
8276 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8277 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8279 *) Updated the README file.
8280 [Ralf S. Engelschall]
8282 *) Added various .cvsignore files in the CVS repository subdirs
8283 to make a "cvs update" really silent.
8284 [Ralf S. Engelschall]
8286 *) Recompiled the error-definition header files and added
8287 missing symbols to the Win32 linker tables.
8288 [Ralf S. Engelschall]
8290 *) Cleaned up the top-level documents;
8291 o new files: CHANGES and LICENSE
8292 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8293 o merged COPYRIGHT into LICENSE
8294 o removed obsolete TODO file
8295 o renamed MICROSOFT to INSTALL.W32
8296 [Ralf S. Engelschall]
8298 *) Removed dummy files from the 0.9.1b source tree:
8299 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8300 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8301 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8302 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8303 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8304 [Ralf S. Engelschall]
8306 *) Added various platform portability fixes.
8309 *) The Genesis of the OpenSSL rpject:
8310 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8311 Young and Tim J. Hudson created while they were working for C2Net until
8313 [The OpenSSL Project]
8316 Changes between 0.9.0b and 0.9.1b [not released]
8318 *) Updated a few CA certificates under certs/
8321 *) Changed some BIGNUM api stuff.
8324 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8325 DGUX x86, Linux Alpha, etc.
8328 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8329 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8333 *) Add -strparse option to asn1pars program which parses nested
8335 [Dr Stephen Henson <shenson@bigfoot.com>]
8337 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8340 *) DSA fix for "ca" program.
8343 *) Added "-genkey" option to "dsaparam" program.
8346 *) Added RIPE MD160 (rmd160) message digest.
8349 *) Added -a (all) option to "ssleay version" command.
8352 *) Added PLATFORM define which is the id given to Configure.
8355 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8358 *) Extended the ASN.1 parser routines.
8361 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8364 *) Added a BN_CTX to the BN library.
8367 *) Fixed the weak key values in DES library
8370 *) Changed API in EVP library for cipher aliases.
8373 *) Added support for RC2/64bit cipher.
8376 *) Converted the lhash library to the crypto/mem.c functions.
8379 *) Added more recognized ASN.1 object ids.
8382 *) Added more RSA padding checks for SSL/TLS.
8385 *) Added BIO proxy/filter functionality.
8388 *) Added extra_certs to SSL_CTX which can be used
8389 send extra CA certificates to the client in the CA cert chain sending
8390 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8393 *) Now Fortezza is denied in the authentication phase because
8394 this is key exchange mechanism is not supported by SSLeay at all.
8397 *) Additional PKCS1 checks.
8400 *) Support the string "TLSv1" for all TLS v1 ciphers.
8403 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8404 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8407 *) Fixed a few memory leaks.
8410 *) Fixed various code and comment typos.
8413 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8414 bytes sent in the client random.
8415 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob