5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) Add RFC4507 support to OpenSSL. This includes the corrections in
8 RFC4507bis. The encrypted ticket format is an encrypted encoded
9 SSL_SESSION structure, that way new session features are automatically
12 If a client application caches session in an SSL_SESSION structure
13 support is transparent because tickets are now stored in the encoded
16 The SSL_CTX structure automatically generates keys for ticket
17 protection in servers so again support should be possible
18 with no application modification.
20 If a client or server wishes to disable RFC4507 support then the option
21 SSL_OP_NO_TICKET can be set.
23 Add a TLS extension debugging callback to allow the contents of any client
24 or server extensions to be examined.
27 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
28 OpenSSL should now compile cleanly on gcc 4.2
29 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
31 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
32 support including streaming MAC support: this is required for GOST
34 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
36 *) Add option -stream to use PKCS#7 streaming in smime utility. New
37 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
38 to output in BER and PEM format.
41 *) Experimental support for use of HMAC via EVP_PKEY interface. This
42 allows HMAC to be handled via the EVP_DigestSign*() interface. The
43 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
44 ENGINE support for HMAC keys which are unextractable. New -mac and
45 -macopt options to dgst utility.
48 *) New option -sigopt to dgst utility. Update dgst to use
49 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
50 alternative signing paramaters such as X9.31 or PSS in the dgst
54 *) Change ssl_cipher_apply_rule(), the internal function that does
55 the work each time a ciphersuite string requests enabling
56 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
57 removing ("!foo+bar") a class of ciphersuites: Now it maintains
58 the order of disabled ciphersuites such that those ciphersuites
59 that most recently went from enabled to disabled not only stay
60 in order with respect to each other, but also have higher priority
61 than other disabled ciphersuites the next time ciphersuites are
64 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
65 the same ciphersuites as with "HIGH" alone, but in a specific
66 order where the PSK ciphersuites come first (since they are the
67 most recently disabled ciphersuites when "HIGH" is parsed).
69 Also, change ssl_create_cipher_list() (using this new
70 funcionality) such that between otherwise identical
71 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
75 *) Change ssl_create_cipher_list() so that it automatically
76 arranges the ciphersuites in reasonable order before starting
77 to process the rule string. Thus, the definition for "DEFAULT"
78 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
79 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
80 This makes it much easier to arrive at a reasonable default order
81 in applications for which anonymous ciphers are OK (meaning
82 that you can't actually use DEFAULT).
83 [Bodo Moeller; suggested by Victor Duchovni]
85 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
86 processing) into multiple integers instead of setting
87 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
88 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
89 (These masks as well as the individual bit definitions are hidden
90 away into the non-exported interface ssl/ssl_locl.h, so this
91 change to the definition of the SSL_CIPHER structure shouldn't
92 affect applications.) This give us more bits for each of these
93 categories, so there is no longer a need to coagulate AES128 and
94 AES256 into a single algorithm bit, and to coagulate Camellia128
95 and Camellia256 into a single algorithm bit, which has led to all
98 Thus, among other things, the kludge introduced in 0.9.7m and
99 0.9.8e for masking out AES256 independently of AES128 or masking
100 out Camellia256 independently of AES256 is not needed here in 0.9.9.
102 With the change, we also introduce new ciphersuite aliases that
103 so far were missing: "AES128", "AES256", "CAMELLIA128", and
107 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
108 Use the leftmost N bytes of the signature input if the input is
109 larger than the prime q (with N being the size in bytes of q).
112 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
113 it yet and it is largely untested.
116 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
119 *) Initial incomplete changes to avoid need for function casts in OpenSSL
120 some compilers (gcc 4.2 and later) reject their use. Safestack is
121 reimplemented using inline functions: tests show that these calls are
122 typically optimized away by compilers so they have no additional overhead.
123 Update ASN1 to avoid use of legacy functions.
126 *) Win32/64 targets are linked with Winsock2.
129 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
130 to external functions. This can be used to increase CRL handling
131 efficiency especially when CRLs are very large by (for example) storing
132 the CRL revoked certificates in a database.
135 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
136 new CRLs added to a directory can be used. New command line option
137 -verify_return_error to s_client and s_server. This causes real errors
138 to be returned by the verify callback instead of carrying on no matter
139 what. This reflects the way a "real world" verify callback would behave.
142 *) GOST engine, supporting several GOST algorithms and public key formats.
143 Kindly donated by Cryptocom.
146 *) Partial support for Issuing Distribution Point CRL extension. CRLs
147 partitioned by DP are handled but no indirect CRL or reason partitioning
148 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
149 selected via a scoring technique which handles IDP and AKID in CRLs.
152 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
153 will ultimately be used for all verify operations: this will remove the
154 X509_STORE dependency on certificate verification and allow alternative
155 lookup methods. X509_STORE based implementations of these two callbacks.
158 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
159 Modify get_crl() to find a valid (unexpired) CRL if possible.
162 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
163 this would be called X509_CRL_cmp() but that name is already used by
164 a function that just compares CRL issuer names. Cache several CRL
165 extensions in X509_CRL structure and cache CRLDP in X509.
168 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
169 this maps equivalent X509_NAME structures into a consistent structure.
170 Name comparison can then be performed rapidly using memcmp().
173 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
177 *) Allow digests to supply their own micalg string for S/MIME type using
178 the ctrl EVP_MD_CTRL_MICALG.
181 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
182 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
183 ctrl. It can then customise the structure before and/or after signing
187 *) New function OBJ_add_sigid() to allow application defined signature OIDs
188 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
189 to free up any added signature OIDs.
192 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
193 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
194 digest and cipher tables. New options added to openssl utility:
195 list-message-digest-algorithms and list-cipher-algorithms.
198 *) In addition to the numerical (unsigned long) thread ID, provide
199 for a pointer (void *) thread ID. This helps accomodate systems
200 that do not provide an unsigned long thread ID. OpenSSL assumes
201 it is in the same thread iff both the numerical and the pointer
202 thread ID agree; so applications are just required to define one
203 of them appropriately (e.g., by using a pointer to a per-thread
204 memory object malloc()ed by the application for the pointer-type
205 thread ID). Exactly analoguous to the existing functions
207 void CRYPTO_set_id_callback(unsigned long (*func)(void));
208 unsigned long (*CRYPTO_get_id_callback(void))(void);
209 unsigned long CRYPTO_thread_id(void);
211 we now have additional functions
213 void CRYPTO_set_idptr_callback(void *(*func)(void));
214 void *(*CRYPTO_get_idptr_callback(void))(void);
215 void *CRYPTO_thread_idptr(void);
217 also in <openssl/crypto.h>. The default value for
218 CRYPTO_thread_idptr() if the application has not provided its own
222 *) Change the array representation of binary polynomials: the list
223 of degrees of non-zero coefficients is now terminated with -1.
224 Previously it was terminated with 0, which was also part of the
225 value; thus, the array representation was not applicable to
226 polynomials where t^0 has coefficient zero. This change makes
227 the array representation useful in a more general context.
230 *) Various modifications and fixes to SSL/TLS cipher string
231 handling. For ECC, the code now distinguishes between fixed ECDH
232 with RSA certificates on the one hand and with ECDSA certificates
233 on the other hand, since these are separate ciphersuites. The
234 unused code for Fortezza ciphersuites has been removed.
236 For consistency with EDH, ephemeral ECDH is now called "EECDH"
237 (not "ECDHE"). For consistency with the code for DH
238 certificates, use of ECDH certificates is now considered ECDH
239 authentication, not RSA or ECDSA authentication (the latter is
240 merely the CA's signing algorithm and not actively used in the
243 The temporary ciphersuite alias "ECCdraft" is no longer
244 available, and ECC ciphersuites are no longer excluded from "ALL"
245 and "DEFAULT". The following aliases now exist for RFC 4492
246 ciphersuites, most of these by analogy with the DH case:
248 kECDHr - ECDH cert, signed with RSA
249 kECDHe - ECDH cert, signed with ECDSA
250 kECDH - ECDH cert (signed with either RSA or ECDSA)
251 kEECDH - ephemeral ECDH
252 ECDH - ECDH cert or ephemeral ECDH
258 AECDH - anonymous ECDH
259 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
263 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
264 Use correct micalg parameters depending on digest(s) in signed message.
267 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
268 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
271 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
272 an engine to register a method. Add ENGINE lookups for methods and
273 functional reference processing.
276 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
277 EVP_{Sign,Verify}* which allow an application to customise the signature
281 *) New -resign option to smime utility. This adds one or more signers
282 to an existing PKCS#7 signedData structure. Also -md option to use an
283 alternative message digest algorithm for signing.
286 *) Tidy up PKCS#7 routines and add new functions to make it easier to
287 create PKCS7 structures containing multiple signers. Update smime
288 application to support multiple signers.
291 *) New -macalg option to pkcs12 utility to allow setting of an alternative
295 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
296 Reorganize PBE internals to lookup from a static table using NIDs,
297 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
298 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
299 PRF which will be automatically used with PBES2.
302 *) Replace the algorithm specific calls to generate keys in "req" with the
306 *) Update PKCS#7 enveloped data routines to use new API. This is now
307 supported by any public key method supporting the encrypt operation. A
308 ctrl is added to allow the public key algorithm to examine or modify
309 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
313 *) Add a ctrl to asn1 method to allow a public key algorithm to express
314 a default digest type to use. In most cases this will be SHA1 but some
315 algorithms (such as GOST) need to specify an alternative digest. The
316 return value indicates how strong the prefernce is 1 means optional and
317 2 is mandatory (that is it is the only supported type). Modify
318 ASN1_item_sign() to accept a NULL digest argument to indicate it should
319 use the default md. Update openssl utilities to use the default digest
320 type for signing if it is not explicitly indicated.
323 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
324 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
325 signing method from the key type. This effectively removes the link
326 between digests and public key types.
329 *) Add an OID cross reference table and utility functions. Its purpose is to
330 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
331 rsaEncryption. This will allow some of the algorithm specific hackery
332 needed to use the correct OID to be removed.
335 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
336 structures for PKCS7_sign(). They are now set up by the relevant public
340 *) Add provisional EC pkey method with support for ECDSA and ECDH.
343 *) Add support for key derivation (agreement) in the API, DH method and
347 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
348 public and private key formats. As a side effect these add additional
349 command line functionality not previously available: DSA signatures can be
350 generated and verified using pkeyutl and DH key support and generation in
355 [Oliver Tappe <zooey@hirschkaefer.de>]
357 *) New make target "install_html_docs" installs HTML renditions of the
359 [Oliver Tappe <zooey@hirschkaefer.de>]
361 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
362 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
363 support key and parameter generation and add initial key generation
364 functionality for RSA.
367 *) Add functions for main EVP_PKEY_method operations. The undocumented
368 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
369 EVP_PKEY_{encrypt,decrypt}_old.
372 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
373 key API, doesn't do much yet.
376 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
377 public key algorithms. New option to openssl utility:
378 "list-public-key-algorithms" to print out info.
381 *) Implement the Supported Elliptic Curves Extension for
382 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
385 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
386 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
389 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
390 utilities such as rsa, dsa, dsaparam etc except they process any key
394 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
395 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
396 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
400 *) Initial support for pluggable public key ASN1.
401 De-spaghettify the public key ASN1 handling. Move public and private
402 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
403 algorithm specific handling to a single module within the relevant
404 algorithm directory. Add functions to allow (near) opaque processing
405 of public and private key structures.
408 *) Implement the Supported Point Formats Extension for
409 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
412 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
413 for the psk identity [hint] and the psk callback functions to the
414 SSL_SESSION, SSL and SSL_CTX structure.
417 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
421 SSL_CTX_use_psk_identity_hint
422 SSL_get_psk_identity_hint
424 SSL_use_psk_identity_hint
426 [Mika Kousa and Pasi Eronen of Nokia Corporation]
428 *) Add RFC 3161 compliant time stamp request creation, response generation
429 and response verification functionality.
430 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
432 *) Add initial support for TLS extensions, specifically for the server_name
433 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
434 have new members for a host name. The SSL data structure has an
435 additional member SSL_CTX *initial_ctx so that new sessions can be
436 stored in that context to allow for session resumption, even after the
437 SSL has been switched to a new SSL_CTX in reaction to a client's
438 server_name extension.
440 New functions (subject to change):
443 SSL_get_servername_type()
446 New CTRL codes and macros (subject to change):
448 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
449 - SSL_CTX_set_tlsext_servername_callback()
450 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
451 - SSL_CTX_set_tlsext_servername_arg()
452 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
454 openssl s_client has a new '-servername ...' option.
456 openssl s_server has new options '-servername_host ...', '-cert2 ...',
457 '-key2 ...', '-servername_fatal' (subject to change). This allows
458 testing the HostName extension for a specific single host name ('-cert'
459 and '-key' remain fallbacks for handshakes without HostName
460 negotiation). If the unrecogninzed_name alert has to be sent, this by
461 default is a warning; it becomes fatal with the '-servername_fatal'
464 [Peter Sylvester, Remy Allais, Christophe Renou]
466 *) Whirlpool hash implementation is added.
469 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
470 bn(64,32). Because of instruction set limitations it doesn't have
471 any negative impact on performance. This was done mostly in order
472 to make it possible to share assembler modules, such as bn_mul_mont
473 implementations, between 32- and 64-bit builds without hassle.
476 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
477 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
481 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
482 dedicated Montgomery multiplication procedure, is introduced.
483 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
484 "64-bit" performance on certain 32-bit targets.
487 *) New option SSL_OP_NO_COMP to disable use of compression selectively
488 in SSL structures. New SSL ctrl to set maximum send fragment size.
489 Save memory by seeting the I/O buffer sizes dynamically instead of
490 using the maximum available value.
493 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
494 in addition to the text details.
497 *) Very, very preliminary EXPERIMENTAL support for printing of general
498 ASN1 structures. This currently produces rather ugly output and doesn't
499 handle several customised structures at all.
502 *) Integrated support for PVK file format and some related formats such
503 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
504 these in the 'rsa' and 'dsa' utilities.
507 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
510 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
511 place for the (very old) "NETSCAPE" format certificates which are now
512 handled using new ASN1 code equivalents.
515 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
516 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
517 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
520 *) Modify CRL distribution points extension code to print out previously
521 unsupported fields. Enhance extension setting code to allow setting of
525 *) Add print and set support for Issuing Distribution Point CRL extension.
528 *) Change 'Configure' script to enable Camellia by default.
531 Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
533 *) Mitigate attack on final subtraction in Montgomery reduction.
536 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
537 (which previously caused an internal error).
540 *) Squeeze another 10% out of IGE mode when in != out.
543 *) AES IGE mode speedup.
544 [Dean Gaudet (Google)]
546 *) Add the Korean symmetric 128-bit cipher SEED (see
547 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
548 add SEED ciphersuites from RFC 4162:
550 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
551 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
552 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
553 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
555 To minimize changes between patchlevels in the OpenSSL 0.9.8
556 series, SEED remains excluded from compilation unless OpenSSL
557 is configured with 'enable-seed'.
560 *) Mitigate branch prediction attacks, which can be practical if a
561 single processor is shared, allowing a spy process to extract
562 information. For detailed background information, see
563 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
564 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
565 and Necessary Software Countermeasures"). The core of the change
566 are new versions BN_div_no_branch() and
567 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
568 respectively, which are slower, but avoid the security-relevant
569 conditional branches. These are automatically called by BN_div()
570 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
571 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
572 remove a conditional branch.
574 BN_FLG_CONSTTIME is the new name for the previous
575 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
576 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
577 in the exponent causes BN_mod_exp_mont() to use the alternative
578 implementation in BN_mod_exp_mont_consttime().) The old name
579 remains as a deprecated alias.
581 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
582 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
583 constant-time implementations for more than just exponentiation.
584 Here too the old name is kept as a deprecated alias.
586 BN_BLINDING_new() will now use BN_dup() for the modulus so that
587 the BN_BLINDING structure gets an independent copy of the
588 modulus. This means that the previous "BIGNUM *m" argument to
589 BN_BLINDING_new() and to BN_BLINDING_create_param() now
590 essentially becomes "const BIGNUM *m", although we can't actually
591 change this in the header file before 0.9.9. It allows
592 RSA_setup_blinding() to use BN_with_flags() on the modulus to
593 enable BN_FLG_CONSTTIME.
595 [Matthew D Wood (Intel Corp)]
597 *) In the SSL/TLS server implementation, be strict about session ID
598 context matching (which matters if an application uses a single
599 external cache for different purposes). Previously,
600 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
601 set. This did ensure strict client verification, but meant that,
602 with applications using a single external cache for quite
603 different requirements, clients could circumvent ciphersuite
604 restrictions for a given session ID context by starting a session
605 in a different context.
608 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
609 a ciphersuite string such as "DEFAULT:RSA" cannot enable
610 authentication-only ciphersuites.
613 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
615 *) Since AES128 and AES256 (and similarly Camellia128 and
616 Camellia256) share a single mask bit in the logic of
617 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
618 kludge to work properly if AES128 is available and AES256 isn't
619 (or if Camellia128 is available and Camellia256 isn't).
622 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
623 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
624 When a point or a seed is encoded in a BIT STRING, we need to
625 prevent the removal of trailing zero bits to get the proper DER
626 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
627 of a NamedBitList, for which trailing 0 bits need to be removed.)
630 *) Have SSL/TLS server implementation tolerate "mismatched" record
631 protocol version while receiving ClientHello even if the
632 ClientHello is fragmented. (The server can't insist on the
633 particular protocol version it has chosen before the ServerHello
634 message has informed the client about his choice.)
637 *) Add RFC 3779 support.
638 [Rob Austein for ARIN, Ben Laurie]
640 *) Load error codes if they are not already present instead of using a
641 static variable. This allows them to be cleanly unloaded and reloaded.
642 Improve header file function name parsing.
645 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
646 or CAPABILITY handshake as required by RFCs.
649 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
651 *) Introduce limits to prevent malicious keys being able to
652 cause a denial of service. (CVE-2006-2940)
653 [Steve Henson, Bodo Moeller]
655 *) Fix ASN.1 parsing of certain invalid structures that can result
656 in a denial of service. (CVE-2006-2937) [Steve Henson]
658 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
659 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
661 *) Fix SSL client code which could crash if connecting to a
662 malicious SSLv2 server. (CVE-2006-4343)
663 [Tavis Ormandy and Will Drewry, Google Security Team]
665 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
666 match only those. Before that, "AES256-SHA" would be interpreted
667 as a pattern and match "AES128-SHA" too (since AES128-SHA got
668 the same strength classification in 0.9.7h) as we currently only
669 have a single AES bit in the ciphersuite description bitmap.
670 That change, however, also applied to ciphersuite strings such as
671 "RC4-MD5" that intentionally matched multiple ciphersuites --
672 namely, SSL 2.0 ciphersuites in addition to the more common ones
673 from SSL 3.0/TLS 1.0.
675 So we change the selection algorithm again: Naming an explicit
676 ciphersuite selects this one ciphersuite, and any other similar
677 ciphersuite (same bitmap) from *other* protocol versions.
678 Thus, "RC4-MD5" again will properly select both the SSL 2.0
679 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
681 Since SSL 2.0 does not have any ciphersuites for which the
682 128/256 bit distinction would be relevant, this works for now.
683 The proper fix will be to use different bits for AES128 and
684 AES256, which would have avoided the problems from the beginning;
685 however, bits are scarce, so we can only do this in a new release
686 (not just a patchlevel) when we can change the SSL_CIPHER
687 definition to split the single 'unsigned long mask' bitmap into
688 multiple values to extend the available space.
692 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
694 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
695 (CVE-2006-4339) [Ben Laurie and Google Security Team]
697 *) Add AES IGE and biIGE modes.
700 *) Change the Unix randomness entropy gathering to use poll() when
701 possible instead of select(), since the latter has some
702 undesirable limitations.
703 [Darryl Miles via Richard Levitte and Bodo Moeller]
705 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
706 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
707 cannot be implicitly activated as part of, e.g., the "AES" alias.
708 However, please upgrade to OpenSSL 0.9.9[-dev] for
709 non-experimental use of the ECC ciphersuites to get TLS extension
710 support, which is required for curve and point format negotiation
711 to avoid potential handshake problems.
714 *) Disable rogue ciphersuites:
716 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
717 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
718 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
720 The latter two were purportedly from
721 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
724 Also deactivate the remaining ciphersuites from
725 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
726 unofficial, and the ID has long expired.
729 *) Fix RSA blinding Heisenbug (problems sometimes occured on
730 dual-core machines) and other potential thread-safety issues.
733 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
734 versions), which is now available for royalty-free use
735 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
736 Also, add Camellia TLS ciphersuites from RFC 4132.
738 To minimize changes between patchlevels in the OpenSSL 0.9.8
739 series, Camellia remains excluded from compilation unless OpenSSL
740 is configured with 'enable-camellia'.
743 *) Disable the padding bug check when compression is in use. The padding
744 bug check assumes the first packet is of even length, this is not
745 necessarily true if compresssion is enabled and can result in false
746 positives causing handshake failure. The actual bug test is ancient
747 code so it is hoped that implementations will either have fixed it by
748 now or any which still have the bug do not support compression.
751 Changes between 0.9.8a and 0.9.8b [04 May 2006]
753 *) When applying a cipher rule check to see if string match is an explicit
754 cipher suite and only match that one cipher suite if it is.
757 *) Link in manifests for VC++ if needed.
758 [Austin Ziegler <halostatue@gmail.com>]
760 *) Update support for ECC-based TLS ciphersuites according to
761 draft-ietf-tls-ecc-12.txt with proposed changes (but without
762 TLS extensions, which are supported starting with the 0.9.9
763 branch, not in the OpenSSL 0.9.8 branch).
766 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
767 opaque EVP_CIPHER_CTX handling.
770 *) Fixes and enhancements to zlib compression code. We now only use
771 "zlib1.dll" and use the default __cdecl calling convention on Win32
772 to conform with the standards mentioned here:
773 http://www.zlib.net/DLL_FAQ.txt
774 Static zlib linking now works on Windows and the new --with-zlib-include
775 --with-zlib-lib options to Configure can be used to supply the location
776 of the headers and library. Gracefully handle case where zlib library
780 *) Several fixes and enhancements to the OID generation code. The old code
781 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
782 handle numbers larger than ULONG_MAX, truncated printing and had a
783 non standard OBJ_obj2txt() behaviour.
786 *) Add support for building of engines under engine/ as shared libraries
787 under VC++ build system.
790 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
791 Hopefully, we will not see any false combination of paths any more.
794 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
796 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
797 (part of SSL_OP_ALL). This option used to disable the
798 countermeasure against man-in-the-middle protocol-version
799 rollback in the SSL 2.0 server implementation, which is a bad
800 idea. (CVE-2005-2969)
802 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
803 for Information Security, National Institute of Advanced Industrial
804 Science and Technology [AIST], Japan)]
806 *) Add two function to clear and return the verify parameter flags.
809 *) Keep cipherlists sorted in the source instead of sorting them at
810 runtime, thus removing the need for a lock.
813 *) Avoid some small subgroup attacks in Diffie-Hellman.
814 [Nick Mathewson and Ben Laurie]
816 *) Add functions for well-known primes.
819 *) Extended Windows CE support.
820 [Satoshi Nakamura and Andy Polyakov]
822 *) Initialize SSL_METHOD structures at compile time instead of during
823 runtime, thus removing the need for a lock.
826 *) Make PKCS7_decrypt() work even if no certificate is supplied by
827 attempting to decrypt each encrypted key in turn. Add support to
831 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
833 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
836 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
839 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
840 key into the same file any more.
843 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
846 *) Add -utf8 command line and config file option to 'ca'.
847 [Stefan <stf@udoma.org]
849 *) Removed the macro des_crypt(), as it seems to conflict with some
850 libraries. Use DES_crypt().
853 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
854 involves renaming the source and generated shared-libs for
855 both. The engines will accept the corrected or legacy ids
856 ('ncipher' and '4758_cca' respectively) when binding. NB,
857 this only applies when building 'shared'.
858 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
860 *) Add attribute functions to EVP_PKEY structure. Modify
861 PKCS12_create() to recognize a CSP name attribute and
862 use it. Make -CSP option work again in pkcs12 utility.
865 *) Add new functionality to the bn blinding code:
866 - automatic re-creation of the BN_BLINDING parameters after
867 a fixed number of uses (currently 32)
868 - add new function for parameter creation
869 - introduce flags to control the update behaviour of the
870 BN_BLINDING parameters
871 - hide BN_BLINDING structure
872 Add a second BN_BLINDING slot to the RSA structure to improve
873 performance when a single RSA object is shared among several
877 *) Add support for DTLS.
878 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
880 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
881 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
884 *) Remove buggy and incompletet DH cert support from
885 ssl/ssl_rsa.c and ssl/s3_both.c
888 *) Use SHA-1 instead of MD5 as the default digest algorithm for
889 the apps/openssl applications.
892 *) Compile clean with "-Wall -Wmissing-prototypes
893 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
894 DEBUG_SAFESTACK must also be set.
897 *) Change ./Configure so that certain algorithms can be disabled by default.
898 The new counterpiece to "no-xxx" is "enable-xxx".
900 The patented RC5 and MDC2 algorithms will now be disabled unless
901 "enable-rc5" and "enable-mdc2", respectively, are specified.
903 (IDEA remains enabled despite being patented. This is because IDEA
904 is frequently required for interoperability, and there is no license
905 fee for non-commercial use. As before, "no-idea" can be used to
906 avoid this algorithm.)
910 *) Add processing of proxy certificates (see RFC 3820). This work was
911 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
912 EGEE (Enabling Grids for E-science in Europe).
915 *) RC4 performance overhaul on modern architectures/implementations, such
916 as Intel P4, IA-64 and AMD64.
919 *) New utility extract-section.pl. This can be used specify an alternative
920 section number in a pod file instead of having to treat each file as
921 a separate case in Makefile. This can be done by adding two lines to the
924 =for comment openssl_section:XXX
926 The blank line is mandatory.
930 *) New arguments -certform, -keyform and -pass for s_client and s_server
931 to allow alternative format key and certificate files and passphrase
935 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
936 update associated structures and add various utility functions.
938 Add new policy related verify parameters, include policy checking in
939 standard verify code. Enhance 'smime' application with extra parameters
940 to support policy checking and print out.
943 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
944 Nehemiah processors. These extensions support AES encryption in hardware
945 as well as RNG (though RNG support is currently disabled).
946 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
948 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
951 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
952 [Andy Polyakov and a number of other people]
954 *) Improved PowerPC platform support. Most notably BIGNUM assembler
955 implementation contributed by IBM.
956 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
958 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
959 exponent rather than 'unsigned long'. There is a corresponding change to
960 the new 'rsa_keygen' element of the RSA_METHOD structure.
961 [Jelte Jansen, Geoff Thorpe]
963 *) Functionality for creating the initial serial number file is now
964 moved from CA.pl to the 'ca' utility with a new option -create_serial.
966 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
967 number file to 1, which is bound to cause problems. To avoid
968 the problems while respecting compatibility between different 0.9.7
969 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
970 CA.pl for serial number initialization. With the new release 0.9.8,
971 we can fix the problem directly in the 'ca' utility.)
974 *) Reduced header interdepencies by declaring more opaque objects in
975 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
976 give fewer recursive includes, which could break lazy source code - so
977 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
978 developers should define this symbol when building and using openssl to
979 ensure they track the recommended behaviour, interfaces, [etc], but
980 backwards-compatible behaviour prevails when this isn't defined.
983 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
986 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
987 This will generate a random key of the appropriate length based on the
988 cipher context. The EVP_CIPHER can provide its own random key generation
989 routine to support keys of a specific form. This is used in the des and
990 3des routines to generate a key of the correct parity. Update S/MIME
991 code to use new functions and hence generate correct parity DES keys.
992 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
993 valid (weak or incorrect parity).
996 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
997 as looking them up. This is useful when the verified structure may contain
998 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
999 present unless the new PKCS7_NO_CRL flag is asserted.
1002 *) Extend ASN1 oid configuration module. It now additionally accepts the
1005 shortName = some long name, 1.2.3.4
1008 *) Reimplemented the BN_CTX implementation. There is now no more static
1009 limitation on the number of variables it can handle nor the depth of the
1010 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1011 information can now expand as required, and rather than having a single
1012 static array of bignums, BN_CTX now uses a linked-list of such arrays
1013 allowing it to expand on demand whilst maintaining the usefulness of
1014 BN_CTX's "bundling".
1017 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1018 to allow all RSA operations to function using a single BN_CTX.
1021 *) Preliminary support for certificate policy evaluation and checking. This
1022 is initially intended to pass the tests outlined in "Conformance Testing
1023 of Relying Party Client Certificate Path Processing Logic" v1.07.
1026 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1027 remained unused and not that useful. A variety of other little bignum
1028 tweaks and fixes have also been made continuing on from the audit (see
1032 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1033 associated ASN1, EVP and SSL functions and old ASN1 macros.
1036 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1037 and this should never fail. So the return value from the use of
1038 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1039 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1042 *) BN_CTX_get() should return zero-valued bignums, providing the same
1043 initialised value as BN_new().
1044 [Geoff Thorpe, suggested by Ulf Möller]
1046 *) Support for inhibitAnyPolicy certificate extension.
1049 *) An audit of the BIGNUM code is underway, for which debugging code is
1050 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1051 is considered valid when processing BIGNUMs, and causes execution to
1052 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1053 further steps are taken to deliberately pollute unused data in BIGNUM
1054 structures to try and expose faulty code further on. For now, openssl will
1055 (in its default mode of operation) continue to tolerate the inconsistent
1056 forms that it has tolerated in the past, but authors and packagers should
1057 consider trying openssl and their own applications when compiled with
1058 these debugging symbols defined. It will help highlight potential bugs in
1059 their own code, and will improve the test coverage for OpenSSL itself. At
1060 some point, these tighter rules will become openssl's default to improve
1061 maintainability, though the assert()s and other overheads will remain only
1062 in debugging configurations. See bn.h for more details.
1063 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1065 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1066 that can only be obtained through BN_CTX_new() (which implicitly
1067 initialises it). The presence of this function only made it possible
1068 to overwrite an existing structure (and cause memory leaks).
1071 *) Because of the callback-based approach for implementing LHASH as a
1072 template type, lh_insert() adds opaque objects to hash-tables and
1073 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1074 to clean up those corresponding objects before destroying the hash table
1075 (and losing the object pointers). So some over-zealous constifications in
1076 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1077 objects as "const" and the lh_doall[_arg] callback wrappers are not
1078 prototyped to have "const" restrictions on the object pointers they are
1079 given (and so aren't required to cast them away any more).
1082 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1083 (speed) prefers to use its own implementation. The two implementations
1084 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1085 its object type properly exposed (MS_TM) instead of casting to/from "char
1086 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1087 aren't necessarily the greatest nomenclatures - but this is what was used
1088 internally to the implementation so I've used that for now.
1091 *) Ensure that deprecated functions do not get compiled when
1092 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1093 the self-tests were still using deprecated key-generation functions so
1094 these have been updated also.
1097 *) Reorganise PKCS#7 code to separate the digest location functionality
1098 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1099 New function PKCS7_set_digest() to set the digest type for PKCS#7
1100 digestedData type. Add additional code to correctly generate the
1101 digestedData type and add support for this type in PKCS7 initialization
1105 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1106 structure of type "other".
1109 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1110 sure the loop does correctly stop and breaking ("division by zero")
1111 modulus operations are not performed. The (pre-generated) prime
1112 table crypto/bn/bn_prime.h was already correct, but it could not be
1113 re-generated on some platforms because of the "division by zero"
1114 situation in the script.
1115 [Ralf S. Engelschall]
1117 *) Update support for ECC-based TLS ciphersuites according to
1118 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1119 SHA-1 now is only used for "small" curves (where the
1120 representation of a field element takes up to 24 bytes); for
1121 larger curves, the field element resulting from ECDH is directly
1122 used as premaster secret.
1123 [Douglas Stebila (Sun Microsystems Laboratories)]
1125 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1126 curve secp160r1 to the tests.
1127 [Douglas Stebila (Sun Microsystems Laboratories)]
1129 *) Add the possibility to load symbols globally with DSO.
1130 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1132 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1133 control of the error stack.
1136 *) Add support for STORE in ENGINE.
1139 *) Add the STORE type. The intention is to provide a common interface
1140 to certificate and key stores, be they simple file-based stores, or
1141 HSM-type store, or LDAP stores, or...
1142 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1145 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1146 pass a list of arguments to any function as well as provide a way
1147 for a function to pass data back to the caller.
1150 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1151 works like BUF_strdup() but can be used to duplicate a portion of
1152 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1156 *) Add the function sk_find_ex() which works like sk_find(), but will
1157 return an index to an element even if an exact match couldn't be
1158 found. The index is guaranteed to point at the element where the
1159 searched-for key would be inserted to preserve sorting order.
1162 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1163 takes an extra flags argument for optional functionality. Currently,
1164 the following flags are defined:
1166 OBJ_BSEARCH_VALUE_ON_NOMATCH
1167 This one gets OBJ_bsearch_ex() to return a pointer to the first
1168 element where the comparing function returns a negative or zero
1171 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1172 This one gets OBJ_bsearch_ex() to return a pointer to the first
1173 element where the comparing function returns zero. This is useful
1174 if there are more than one element where the comparing function
1178 *) Make it possible to create self-signed certificates with 'openssl ca'
1179 in such a way that the self-signed certificate becomes part of the
1180 CA database and uses the same mechanisms for serial number generation
1181 as all other certificate signing. The new flag '-selfsign' enables
1182 this functionality. Adapt CA.sh and CA.pl.in.
1185 *) Add functionality to check the public key of a certificate request
1186 against a given private. This is useful to check that a certificate
1187 request can be signed by that key (self-signing).
1190 *) Make it possible to have multiple active certificates with the same
1191 subject in the CA index file. This is done only if the keyword
1192 'unique_subject' is set to 'no' in the main CA section (default
1193 if 'CA_default') of the configuration file. The value is saved
1194 with the database itself in a separate index attribute file,
1195 named like the index file with '.attr' appended to the name.
1198 *) Generate muti valued AVAs using '+' notation in config files for
1202 *) Support for nameConstraints certificate extension.
1205 *) Support for policyConstraints certificate extension.
1208 *) Support for policyMappings certificate extension.
1211 *) Make sure the default DSA_METHOD implementation only uses its
1212 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1213 and change its own handlers to be NULL so as to remove unnecessary
1214 indirection. This lets alternative implementations fallback to the
1215 default implementation more easily.
1218 *) Support for directoryName in GeneralName related extensions
1222 *) Make it possible to link applications using Makefile.shared.
1223 Make that possible even when linking against static libraries!
1226 *) Support for single pass processing for S/MIME signing. This now
1227 means that S/MIME signing can be done from a pipe, in addition
1228 cleartext signing (multipart/signed type) is effectively streaming
1229 and the signed data does not need to be all held in memory.
1231 This is done with a new flag PKCS7_STREAM. When this flag is set
1232 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1233 is done after the data is output (and digests calculated) in
1234 SMIME_write_PKCS7().
1237 *) Add full support for -rpath/-R, both in shared libraries and
1238 applications, at least on the platforms where it's known how
1242 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1243 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1244 will now compute a table of multiples of the generator that
1245 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1246 faster (notably in the case of a single point multiplication,
1247 scalar * generator).
1248 [Nils Larsch, Bodo Moeller]
1250 *) IPv6 support for certificate extensions. The various extensions
1251 which use the IP:a.b.c.d can now take IPv6 addresses using the
1252 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1256 *) Added an ENGINE that implements RSA by performing private key
1257 exponentiations with the GMP library. The conversions to and from
1258 GMP's mpz_t format aren't optimised nor are any montgomery forms
1259 cached, and on x86 it appears OpenSSL's own performance has caught up.
1260 However there are likely to be other architectures where GMP could
1261 provide a boost. This ENGINE is not built in by default, but it can be
1262 specified at Configure time and should be accompanied by the necessary
1263 linker additions, eg;
1264 ./config -DOPENSSL_USE_GMP -lgmp
1267 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1268 testing availability of engines with "-t" - the old behaviour is
1269 produced by increasing the feature's verbosity with "-tt".
1272 *) ECDSA routines: under certain error conditions uninitialized BN objects
1273 could be freed. Solution: make sure initialization is performed early
1274 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1278 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1279 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1280 software implementations. For DSA and DH, parameter generation can
1281 also be overriden by providing the appropriate method callbacks.
1284 *) Change the "progress" mechanism used in key-generation and
1285 primality testing to functions that take a new BN_GENCB pointer in
1286 place of callback/argument pairs. The new API functions have "_ex"
1287 postfixes and the older functions are reimplemented as wrappers for
1288 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1289 declarations of the old functions to help (graceful) attempts to
1290 migrate to the new functions. Also, the new key-generation API
1291 functions operate on a caller-supplied key-structure and return
1292 success/failure rather than returning a key or NULL - this is to
1293 help make "keygen" another member function of RSA_METHOD etc.
1295 Example for using the new callback interface:
1297 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1301 BN_GENCB_set(&my_cb, my_callback, my_arg);
1303 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1304 /* For the meaning of a, b in calls to my_callback(), see the
1305 * documentation of the function that calls the callback.
1306 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1307 * my_callback should return 1 if it wants BN_is_prime_ex()
1308 * to continue, or 0 to stop.
1313 *) Change the ZLIB compression method to be stateful, and make it
1314 available to TLS with the number defined in
1315 draft-ietf-tls-compression-04.txt.
1318 *) Add the ASN.1 structures and functions for CertificatePair, which
1319 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1321 CertificatePair ::= SEQUENCE {
1322 forward [0] Certificate OPTIONAL,
1323 reverse [1] Certificate OPTIONAL,
1324 -- at least one of the pair shall be present -- }
1326 Also implement the PEM functions to read and write certificate
1327 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1329 This needed to be defined, mostly for the sake of the LDAP
1330 attribute crossCertificatePair, but may prove useful elsewhere as
1334 *) Make it possible to inhibit symlinking of shared libraries in
1335 Makefile.shared, for Cygwin's sake.
1338 *) Extend the BIGNUM API by creating a function
1339 void BN_set_negative(BIGNUM *a, int neg);
1340 and a macro that behave like
1341 int BN_is_negative(const BIGNUM *a);
1343 to avoid the need to access 'a->neg' directly in applications.
1346 *) Implement fast modular reduction for pseudo-Mersenne primes
1347 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1348 EC_GROUP_new_curve_GFp() will now automatically use this
1350 [Nils Larsch <nla@trustcenter.de>]
1352 *) Add new lock type (CRYPTO_LOCK_BN).
1355 *) Change the ENGINE framework to automatically load engines
1356 dynamically from specific directories unless they could be
1357 found to already be built in or loaded. Move all the
1358 current engines except for the cryptodev one to a new
1360 The engines in engines/ are built as shared libraries if
1361 the "shared" options was given to ./Configure or ./config.
1362 Otherwise, they are inserted in libcrypto.a.
1363 /usr/local/ssl/engines is the default directory for dynamic
1364 engines, but that can be overriden at configure time through
1365 the usual use of --prefix and/or --openssldir, and at run
1366 time with the environment variable OPENSSL_ENGINES.
1367 [Geoff Thorpe and Richard Levitte]
1369 *) Add Makefile.shared, a helper makefile to build shared
1370 libraries. Addapt Makefile.org.
1373 *) Add version info to Win32 DLLs.
1374 [Peter 'Luna' Runestig" <peter@runestig.com>]
1376 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1377 can be added using this API to created arbitrary PKCS#12
1378 files while avoiding the low level API.
1380 New options to PKCS12_create(), key or cert can be NULL and
1381 will then be omitted from the output file. The encryption
1382 algorithm NIDs can be set to -1 for no encryption, the mac
1383 iteration count can be set to 0 to omit the mac.
1385 Enhance pkcs12 utility by making the -nokeys and -nocerts
1386 options work when creating a PKCS#12 file. New option -nomac
1387 to omit the mac, NONE can be set for an encryption algorithm.
1388 New code is modified to use the enhanced PKCS12_create()
1389 instead of the low level API.
1392 *) Extend ASN1 encoder to support indefinite length constructed
1393 encoding. This can output sequences tags and octet strings in
1394 this form. Modify pk7_asn1.c to support indefinite length
1395 encoding. This is experimental and needs additional code to
1396 be useful, such as an ASN1 bio and some enhanced streaming
1399 Extend template encode functionality so that tagging is passed
1400 down to the template encoder.
1403 *) Let 'openssl req' fail if an argument to '-newkey' is not
1404 recognized instead of using RSA as a default.
1407 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1408 As these are not official, they are not included in "ALL";
1409 the "ECCdraft" ciphersuite group alias can be used to select them.
1410 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1412 *) Add ECDH engine support.
1413 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1415 *) Add ECDH in new directory crypto/ecdh/.
1416 [Douglas Stebila (Sun Microsystems Laboratories)]
1418 *) Let BN_rand_range() abort with an error after 100 iterations
1419 without success (which indicates a broken PRNG).
1422 *) Change BN_mod_sqrt() so that it verifies that the input value
1423 is really the square of the return value. (Previously,
1424 BN_mod_sqrt would show GIGO behaviour.)
1427 *) Add named elliptic curves over binary fields from X9.62, SECG,
1428 and WAP/WTLS; add OIDs that were still missing.
1430 [Sheueling Chang Shantz and Douglas Stebila
1431 (Sun Microsystems Laboratories)]
1433 *) Extend the EC library for elliptic curves over binary fields
1434 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1437 EC_GF2m_simple_method
1441 EC_GROUP_new_curve_GF2m
1442 EC_GROUP_set_curve_GF2m
1443 EC_GROUP_get_curve_GF2m
1444 EC_POINT_set_affine_coordinates_GF2m
1445 EC_POINT_get_affine_coordinates_GF2m
1446 EC_POINT_set_compressed_coordinates_GF2m
1448 Point compression for binary fields is disabled by default for
1449 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1452 As binary polynomials are represented as BIGNUMs, various members
1453 of the EC_GROUP and EC_POINT data structures can be shared
1454 between the implementations for prime fields and binary fields;
1455 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1456 are essentially identical to their ..._GFp counterparts.
1457 (For simplicity, the '..._GFp' prefix has been dropped from
1458 various internal method names.)
1460 An internal 'field_div' method (similar to 'field_mul' and
1461 'field_sqr') has been added; this is used only for binary fields.
1463 [Sheueling Chang Shantz and Douglas Stebila
1464 (Sun Microsystems Laboratories)]
1466 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1467 through methods ('mul', 'precompute_mult').
1469 The generic implementations (now internally called 'ec_wNAF_mul'
1470 and 'ec_wNAF_precomputed_mult') remain the default if these
1471 methods are undefined.
1473 [Sheueling Chang Shantz and Douglas Stebila
1474 (Sun Microsystems Laboratories)]
1476 *) New function EC_GROUP_get_degree, which is defined through
1477 EC_METHOD. For curves over prime fields, this returns the bit
1478 length of the modulus.
1480 [Sheueling Chang Shantz and Douglas Stebila
1481 (Sun Microsystems Laboratories)]
1483 *) New functions EC_GROUP_dup, EC_POINT_dup.
1484 (These simply call ..._new and ..._copy).
1486 [Sheueling Chang Shantz and Douglas Stebila
1487 (Sun Microsystems Laboratories)]
1489 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1490 Polynomials are represented as BIGNUMs (where the sign bit is not
1491 used) in the following functions [macros]:
1494 BN_GF2m_sub [= BN_GF2m_add]
1495 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1496 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1497 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1499 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1500 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1501 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1502 BN_GF2m_cmp [= BN_ucmp]
1504 (Note that only the 'mod' functions are actually for fields GF(2^m).
1505 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1507 For some functions, an the irreducible polynomial defining a
1508 field can be given as an 'unsigned int[]' with strictly
1509 decreasing elements giving the indices of those bits that are set;
1510 i.e., p[] represents the polynomial
1511 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1513 p[0] > p[1] > ... > p[k] = 0.
1514 This applies to the following functions:
1519 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1520 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1522 BN_GF2m_mod_sqrt_arr
1523 BN_GF2m_mod_solve_quad_arr
1527 Conversion can be performed by the following functions:
1532 bntest.c has additional tests for binary polynomial arithmetic.
1534 Two implementations for BN_GF2m_mod_div() are available.
1535 The default algorithm simply uses BN_GF2m_mod_inv() and
1536 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1537 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1538 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1540 [Sheueling Chang Shantz and Douglas Stebila
1541 (Sun Microsystems Laboratories)]
1543 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1544 functionality is disabled at compile-time.
1545 [Douglas Stebila <douglas.stebila@sun.com>]
1547 *) Change default behaviour of 'openssl asn1parse' so that more
1548 information is visible when viewing, e.g., a certificate:
1550 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1551 mode the content of non-printable OCTET STRINGs is output in a
1552 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1553 avoid the appearance of a printable string.
1554 [Nils Larsch <nla@trustcenter.de>]
1556 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1558 EC_GROUP_set_asn1_flag()
1559 EC_GROUP_get_asn1_flag()
1560 EC_GROUP_set_point_conversion_form()
1561 EC_GROUP_get_point_conversion_form()
1562 These control ASN1 encoding details:
1563 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1564 has been set to OPENSSL_EC_NAMED_CURVE.
1565 - Points are encoded in uncompressed form by default; options for
1566 asn1_for are as for point2oct, namely
1567 POINT_CONVERSION_COMPRESSED
1568 POINT_CONVERSION_UNCOMPRESSED
1569 POINT_CONVERSION_HYBRID
1571 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1574 EC_GROUP_get0_seed()
1575 EC_GROUP_get_seed_len()
1576 This is used only for ASN1 purposes (so far).
1577 [Nils Larsch <nla@trustcenter.de>]
1579 *) Add 'field_type' member to EC_METHOD, which holds the NID
1580 of the appropriate field type OID. The new function
1581 EC_METHOD_get_field_type() returns this value.
1582 [Nils Larsch <nla@trustcenter.de>]
1587 EC_POINT_point2hex()
1588 EC_POINT_hex2point()
1589 providing useful interfaces to EC_POINT_point2oct() and
1590 EC_POINT_oct2point().
1591 [Nils Larsch <nla@trustcenter.de>]
1593 *) Change internals of the EC library so that the functions
1594 EC_GROUP_set_generator()
1595 EC_GROUP_get_generator()
1596 EC_GROUP_get_order()
1597 EC_GROUP_get_cofactor()
1598 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1599 to methods, which would lead to unnecessary code duplication when
1600 adding different types of curves.
1601 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1603 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1604 arithmetic, and such that modified wNAFs are generated
1605 (which avoid length expansion in many cases).
1608 *) Add a function EC_GROUP_check_discriminant() (defined via
1609 EC_METHOD) that verifies that the curve discriminant is non-zero.
1611 Add a function EC_GROUP_check() that makes some sanity tests
1612 on a EC_GROUP, its generator and order. This includes
1613 EC_GROUP_check_discriminant().
1614 [Nils Larsch <nla@trustcenter.de>]
1616 *) Add ECDSA in new directory crypto/ecdsa/.
1618 Add applications 'openssl ecparam' and 'openssl ecdsa'
1619 (these are based on 'openssl dsaparam' and 'openssl dsa').
1621 ECDSA support is also included in various other files across the
1622 library. Most notably,
1623 - 'openssl req' now has a '-newkey ecdsa:file' option;
1624 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1625 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1626 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1627 them suitable for ECDSA where domain parameters must be
1628 extracted before the specific public key;
1629 - ECDSA engine support has been added.
1630 [Nils Larsch <nla@trustcenter.de>]
1632 *) Include some named elliptic curves, and add OIDs from X9.62,
1633 SECG, and WAP/WTLS. Each curve can be obtained from the new
1635 EC_GROUP_new_by_curve_name(),
1636 and the list of available named curves can be obtained with
1637 EC_get_builtin_curves().
1638 Also add a 'curve_name' member to EC_GROUP objects, which can be
1640 EC_GROUP_set_curve_name()
1641 EC_GROUP_get_curve_name()
1642 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1644 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1645 was actually never needed) and in BN_mul(). The removal in BN_mul()
1646 required a small change in bn_mul_part_recursive() and the addition
1647 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1648 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1649 bn_sub_words() and bn_add_words() except they take arrays with
1653 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1655 *) In the SSL/TLS server implementation, be strict about session ID
1656 context matching (which matters if an application uses a single
1657 external cache for different purposes). Previously,
1658 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1659 set. This did ensure strict client verification, but meant that,
1660 with applications using a single external cache for quite
1661 different requirements, clients could circumvent ciphersuite
1662 restrictions for a given session ID context by starting a session
1663 in a different context.
1666 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1668 *) Cleanse PEM buffers before freeing them since they may contain
1670 [Benjamin Bennett <ben@psc.edu>]
1672 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1673 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1674 authentication-only ciphersuites.
1677 *) Since AES128 and AES256 share a single mask bit in the logic of
1678 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1679 kludge to work properly if AES128 is available and AES256 isn't.
1682 *) Expand security boundary to match 1.1.1 module.
1685 *) Remove redundant features: hash file source, editing of test vectors
1686 modify fipsld to use external fips_premain.c signature.
1689 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1690 run algorithm test programs.
1693 *) Make algorithm test programs more tolerant of whitespace.
1696 *) Have SSL/TLS server implementation tolerate "mismatched" record
1697 protocol version while receiving ClientHello even if the
1698 ClientHello is fragmented. (The server can't insist on the
1699 particular protocol version it has chosen before the ServerHello
1700 message has informed the client about his choice.)
1703 *) Load error codes if they are not already present instead of using a
1704 static variable. This allows them to be cleanly unloaded and reloaded.
1707 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1709 *) Introduce limits to prevent malicious keys being able to
1710 cause a denial of service. (CVE-2006-2940)
1711 [Steve Henson, Bodo Moeller]
1713 *) Fix ASN.1 parsing of certain invalid structures that can result
1714 in a denial of service. (CVE-2006-2937) [Steve Henson]
1716 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1717 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1719 *) Fix SSL client code which could crash if connecting to a
1720 malicious SSLv2 server. (CVE-2006-4343)
1721 [Tavis Ormandy and Will Drewry, Google Security Team]
1723 *) Change ciphersuite string processing so that an explicit
1724 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1725 will no longer include "AES128-SHA"), and any other similar
1726 ciphersuite (same bitmap) from *other* protocol versions (so that
1727 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1728 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1729 changes from 0.9.8b and 0.9.8d.
1732 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1734 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1735 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1737 *) Change the Unix randomness entropy gathering to use poll() when
1738 possible instead of select(), since the latter has some
1739 undesirable limitations.
1740 [Darryl Miles via Richard Levitte and Bodo Moeller]
1742 *) Disable rogue ciphersuites:
1744 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1745 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1746 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1748 The latter two were purportedly from
1749 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1752 Also deactive the remaining ciphersuites from
1753 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1754 unofficial, and the ID has long expired.
1757 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1758 dual-core machines) and other potential thread-safety issues.
1761 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1763 *) Adapt fipsld and the build system to link against the validated FIPS
1764 module in FIPS mode.
1767 *) Fixes for VC++ 2005 build under Windows.
1770 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1771 from a Windows bash shell such as MSYS. It is autodetected from the
1772 "config" script when run from a VC++ environment. Modify standard VC++
1773 build to use fipscanister.o from the GNU make build.
1776 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1778 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1779 The value now differs depending on if you build for FIPS or not.
1780 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1781 safely run with a non-FIPSed libcrypto, as it may crash because of
1782 the difference induced by this change.
1785 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1787 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1788 (part of SSL_OP_ALL). This option used to disable the
1789 countermeasure against man-in-the-middle protocol-version
1790 rollback in the SSL 2.0 server implementation, which is a bad
1791 idea. (CVE-2005-2969)
1793 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1794 for Information Security, National Institute of Advanced Industrial
1795 Science and Technology [AIST], Japan)]
1797 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1798 mainly for FIPS compliance and not fully integrated at this stage.
1801 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1802 the exponentiation using a fixed-length exponent. (Otherwise,
1803 the information leaked through timing could expose the secret key
1804 after many signatures; cf. Bleichenbacher's attack on DSA with
1808 *) Make a new fixed-window mod_exp implementation the default for
1809 RSA, DSA, and DH private-key operations so that the sequence of
1810 squares and multiplies and the memory access pattern are
1811 independent of the particular secret key. This will mitigate
1812 cache-timing and potential related attacks.
1814 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1815 and this is automatically used by BN_mod_exp_mont() if the new flag
1816 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1817 will use this BN flag for private exponents unless the flag
1818 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1819 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1821 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1823 *) Change the client implementation for SSLv23_method() and
1824 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1825 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1826 (Previously, the SSL 2.0 backwards compatible Client Hello
1827 message format would be used even with SSL_OP_NO_SSLv2.)
1830 *) Add support for smime-type MIME parameter in S/MIME messages which some
1834 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1835 a threadsafe manner. Modify rsa code to use new function and add calls
1836 to dsa and dh code (which had race conditions before).
1839 *) Include the fixed error library code in the C error file definitions
1840 instead of fixing them up at runtime. This keeps the error code
1841 structures constant.
1844 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1846 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1849 *) Fixes for newer kerberos headers. NB: the casts are needed because
1850 the 'length' field is signed on one version and unsigned on another
1851 with no (?) obvious way to tell the difference, without these VC++
1852 complains. Also the "definition" of FAR (blank) is no longer included
1853 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1854 some needed definitions.
1857 *) Undo Cygwin change.
1860 *) Added support for proxy certificates according to RFC 3820.
1861 Because they may be a security thread to unaware applications,
1862 they must be explicitely allowed in run-time. See
1863 docs/HOWTO/proxy_certificates.txt for further information.
1866 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1868 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1869 server and client random values. Previously
1870 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1871 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1873 This change has negligible security impact because:
1875 1. Server and client random values still have 24 bytes of pseudo random
1878 2. Server and client random values are sent in the clear in the initial
1881 3. The master secret is derived using the premaster secret (48 bytes in
1882 size for static RSA ciphersuites) as well as client server and random
1885 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1888 [Stephen Henson, reported by UK NISCC]
1890 *) Use Windows randomness collection on Cygwin.
1893 *) Fix hang in EGD/PRNGD query when communication socket is closed
1894 prematurely by EGD/PRNGD.
1895 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1897 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1900 *) Back-port of selected performance improvements from development
1901 branch, as well as improved support for PowerPC platforms.
1904 *) Add lots of checks for memory allocation failure, error codes to indicate
1905 failure and freeing up memory if a failure occurs.
1906 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1908 *) Add new -passin argument to dgst.
1911 *) Perform some character comparisons of different types in X509_NAME_cmp:
1912 this is needed for some certificates that reencode DNs into UTF8Strings
1913 (in violation of RFC3280) and can't or wont issue name rollover
1917 *) Make an explicit check during certificate validation to see that
1918 the CA setting in each certificate on the chain is correct. As a
1919 side effect always do the following basic checks on extensions,
1920 not just when there's an associated purpose to the check:
1922 - if there is an unhandled critical extension (unless the user
1923 has chosen to ignore this fault)
1924 - if the path length has been exceeded (if one is set at all)
1925 - that certain extensions fit the associated purpose (if one has
1929 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1931 *) Avoid a race condition when CRLs are checked in a multi threaded
1932 environment. This would happen due to the reordering of the revoked
1933 entries during signature checking and serial number lookup. Now the
1934 encoding is cached and the serial number sort performed under a lock.
1935 Add new STACK function sk_is_sorted().
1938 *) Add Delta CRL to the extension code.
1941 *) Various fixes to s3_pkt.c so alerts are sent properly.
1942 [David Holmes <d.holmes@f5.com>]
1944 *) Reduce the chances of duplicate issuer name and serial numbers (in
1945 violation of RFC3280) using the OpenSSL certificate creation utilities.
1946 This is done by creating a random 64 bit value for the initial serial
1947 number when a serial number file is created or when a self signed
1948 certificate is created using 'openssl req -x509'. The initial serial
1949 number file is created using 'openssl x509 -next_serial' in CA.pl
1950 rather than being initialized to 1.
1953 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1955 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1956 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1957 [Joe Orton, Steve Henson]
1959 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1961 [Joe Orton, Steve Henson]
1963 *) Make it possible to have multiple active certificates with the same
1964 subject in the CA index file. This is done only if the keyword
1965 'unique_subject' is set to 'no' in the main CA section (default
1966 if 'CA_default') of the configuration file. The value is saved
1967 with the database itself in a separate index attribute file,
1968 named like the index file with '.attr' appended to the name.
1971 *) X509 verify fixes. Disable broken certificate workarounds when
1972 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1973 keyUsage extension present. Don't accept CRLs with unhandled critical
1974 extensions: since verify currently doesn't process CRL extensions this
1975 rejects a CRL with *any* critical extensions. Add new verify error codes
1979 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1980 A clarification of RFC2560 will require the use of OCTET STRINGs and
1981 some implementations cannot handle the current raw format. Since OpenSSL
1982 copies and compares OCSP nonces as opaque blobs without any attempt at
1983 parsing them this should not create any compatibility issues.
1986 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1987 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1988 this HMAC (and other) operations are several times slower than OpenSSL
1992 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1993 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1995 *) Use the correct content when signing type "other".
1998 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2000 *) Fix various bugs revealed by running the NISCC test suite:
2002 Stop out of bounds reads in the ASN1 code when presented with
2003 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2005 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2007 If verify callback ignores invalid public key errors don't try to check
2008 certificate signature with the NULL public key.
2012 *) New -ignore_err option in ocsp application to stop the server
2013 exiting on the first error in a request.
2016 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2017 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2021 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2022 extra data after the compression methods not only for TLS 1.0
2023 but also for SSL 3.0 (as required by the specification).
2024 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2026 *) Change X509_certificate_type() to mark the key as exported/exportable
2027 when it's 512 *bits* long, not 512 bytes.
2030 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2031 blocks during encryption.
2034 *) Various fixes to base64 BIO and non blocking I/O. On write
2035 flushes were not handled properly if the BIO retried. On read
2036 data was not being buffered properly and had various logic bugs.
2037 This also affects blocking I/O when the data being decoded is a
2041 *) Various S/MIME bugfixes and compatibility changes:
2042 output correct application/pkcs7 MIME type if
2043 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2044 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2045 of files as .eml work). Correctly handle very long lines in MIME
2049 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2051 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2052 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2053 a protocol version number mismatch like a decryption error
2054 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2057 *) Turn on RSA blinding by default in the default implementation
2058 to avoid a timing attack. Applications that don't want it can call
2059 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2060 They would be ill-advised to do so in most cases.
2061 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2063 *) Change RSA blinding code so that it works when the PRNG is not
2064 seeded (in this case, the secret RSA exponent is abused as
2065 an unpredictable seed -- if it is not unpredictable, there
2066 is no point in blinding anyway). Make RSA blinding thread-safe
2067 by remembering the creator's thread ID in rsa->blinding and
2068 having all other threads use local one-time blinding factors
2069 (this requires more computation than sharing rsa->blinding, but
2070 avoids excessive locking; and if an RSA object is not shared
2071 between threads, blinding will still be very fast).
2074 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2075 ENGINE as defaults for all supported algorithms irrespective of
2076 the 'flags' parameter. 'flags' is now honoured, so applications
2077 should make sure they are passing it correctly.
2080 *) Target "mingw" now allows native Windows code to be generated in
2081 the Cygwin environment as well as with the MinGW compiler.
2084 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2086 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2087 via timing by performing a MAC computation even if incorrrect
2088 block cipher padding has been found. This is a countermeasure
2089 against active attacks where the attacker has to distinguish
2090 between bad padding and a MAC verification error. (CVE-2003-0078)
2092 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2093 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2094 Martin Vuagnoux (EPFL, Ilion)]
2096 *) Make the no-err option work as intended. The intention with no-err
2097 is not to have the whole error stack handling routines removed from
2098 libcrypto, it's only intended to remove all the function name and
2099 reason texts, thereby removing some of the footprint that may not
2100 be interesting if those errors aren't displayed anyway.
2102 NOTE: it's still possible for any application or module to have it's
2103 own set of error texts inserted. The routines are there, just not
2104 used by default when no-err is given.
2107 *) Add support for FreeBSD on IA64.
2108 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2110 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2111 Kerberos function mit_des_cbc_cksum(). Before this change,
2112 the value returned by DES_cbc_cksum() was like the one from
2113 mit_des_cbc_cksum(), except the bytes were swapped.
2114 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2116 *) Allow an application to disable the automatic SSL chain building.
2117 Before this a rather primitive chain build was always performed in
2118 ssl3_output_cert_chain(): an application had no way to send the
2119 correct chain if the automatic operation produced an incorrect result.
2121 Now the chain builder is disabled if either:
2123 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2125 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2127 The reasoning behind this is that an application would not want the
2128 auto chain building to take place if extra chain certificates are
2129 present and it might also want a means of sending no additional
2130 certificates (for example the chain has two certificates and the
2134 *) Add the possibility to build without the ENGINE framework.
2135 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2137 *) Under Win32 gmtime() can return NULL: check return value in
2138 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2141 *) DSA routines: under certain error conditions uninitialized BN objects
2142 could be freed. Solution: make sure initialization is performed early
2143 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2144 Nils Larsch <nla@trustcenter.de> via PR#459)
2147 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2148 checked on reconnect on the client side, therefore session resumption
2149 could still fail with a "ssl session id is different" error. This
2150 behaviour is masked when SSL_OP_ALL is used due to
2151 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2152 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2153 followup to PR #377.
2156 *) IA-32 assembler support enhancements: unified ELF targets, support
2157 for SCO/Caldera platforms, fix for Cygwin shared build.
2160 *) Add support for FreeBSD on sparc64. As a consequence, support for
2161 FreeBSD on non-x86 processors is separate from x86 processors on
2162 the config script, much like the NetBSD support.
2163 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2165 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2167 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2170 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2171 code (06) was taken as the first octet of the session ID and the last
2172 octet was ignored consequently. As a result SSLv2 client side session
2173 caching could not have worked due to the session ID mismatch between
2175 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2179 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2180 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2184 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2185 seems that in spite of existing for more than a year, many application
2186 author have done nothing to provide the necessary callbacks, which
2187 means that this particular engine will not work properly anywhere.
2188 This is a very unfortunate situation which forces us, in the name
2189 of usability, to give the hw_ncipher.c a static lock, which is part
2191 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2192 appear in 0.9.8 or later. We EXPECT application authors to have
2193 dealt properly with this when 0.9.8 is released (unless we actually
2194 make such changes in the libcrypto locking code that changes will
2195 have to be made anyway).
2198 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2199 octets have been read, EOF or an error occurs. Without this change
2200 some truncated ASN1 structures will not produce an error.
2203 *) Disable Heimdal support, since it hasn't been fully implemented.
2204 Still give the possibility to force the use of Heimdal, but with
2205 warnings and a request that patches get sent to openssl-dev.
2208 *) Add the VC-CE target, introduce the WINCE sysname, and add
2209 INSTALL.WCE and appropriate conditionals to make it build.
2210 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2212 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2213 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2214 edit numbers of the version.
2215 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2217 *) Introduce safe string copy and catenation functions
2218 (BUF_strlcpy() and BUF_strlcat()).
2219 [Ben Laurie (CHATS) and Richard Levitte]
2221 *) Avoid using fixed-size buffers for one-line DNs.
2222 [Ben Laurie (CHATS)]
2224 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2225 resizing buffers containing secrets, and use where appropriate.
2226 [Ben Laurie (CHATS)]
2228 *) Avoid using fixed size buffers for configuration file location.
2229 [Ben Laurie (CHATS)]
2231 *) Avoid filename truncation for various CA files.
2232 [Ben Laurie (CHATS)]
2234 *) Use sizeof in preference to magic numbers.
2235 [Ben Laurie (CHATS)]
2237 *) Avoid filename truncation in cert requests.
2238 [Ben Laurie (CHATS)]
2240 *) Add assertions to check for (supposedly impossible) buffer
2242 [Ben Laurie (CHATS)]
2244 *) Don't cache truncated DNS entries in the local cache (this could
2245 potentially lead to a spoofing attack).
2246 [Ben Laurie (CHATS)]
2248 *) Fix various buffers to be large enough for hex/decimal
2249 representations in a platform independent manner.
2250 [Ben Laurie (CHATS)]
2252 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2253 resizing buffers containing secrets, and use where appropriate.
2254 [Ben Laurie (CHATS)]
2256 *) Add BIO_indent() to avoid much slightly worrying code to do
2258 [Ben Laurie (CHATS)]
2260 *) Convert sprintf()/BIO_puts() to BIO_printf().
2261 [Ben Laurie (CHATS)]
2263 *) buffer_gets() could terminate with the buffer only half
2265 [Ben Laurie (CHATS)]
2267 *) Add assertions to prevent user-supplied crypto functions from
2268 overflowing internal buffers by having large block sizes, etc.
2269 [Ben Laurie (CHATS)]
2271 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2273 [Ben Laurie (CHATS)]
2275 *) Eliminate unused copy of key in RC4.
2276 [Ben Laurie (CHATS)]
2278 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2279 [Ben Laurie (CHATS)]
2281 *) Fix off-by-one error in EGD path.
2282 [Ben Laurie (CHATS)]
2284 *) If RANDFILE path is too long, ignore instead of truncating.
2285 [Ben Laurie (CHATS)]
2287 *) Eliminate unused and incorrectly sized X.509 structure
2289 [Ben Laurie (CHATS)]
2291 *) Eliminate unused and dangerous function knumber().
2292 [Ben Laurie (CHATS)]
2294 *) Eliminate unused and dangerous structure, KSSL_ERR.
2295 [Ben Laurie (CHATS)]
2297 *) Protect against overlong session ID context length in an encoded
2298 session object. Since these are local, this does not appear to be
2300 [Ben Laurie (CHATS)]
2302 *) Change from security patch (see 0.9.6e below) that did not affect
2303 the 0.9.6 release series:
2305 Remote buffer overflow in SSL3 protocol - an attacker could
2306 supply an oversized master key in Kerberos-enabled versions.
2308 [Ben Laurie (CHATS)]
2310 *) Change the SSL kerb5 codes to match RFC 2712.
2313 *) Make -nameopt work fully for req and add -reqopt switch.
2314 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2316 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2317 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2319 *) Make sure tests can be performed even if the corresponding algorithms
2320 have been removed entirely. This was also the last step to make
2321 OpenSSL compilable with DJGPP under all reasonable conditions.
2322 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2324 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2325 to allow version independent disabling of normally unselected ciphers,
2326 which may be activated as a side-effect of selecting a single cipher.
2328 (E.g., cipher list string "RSA" enables ciphersuites that are left
2329 out of "ALL" because they do not provide symmetric encryption.
2330 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2331 [Lutz Jaenicke, Bodo Moeller]
2333 *) Add appropriate support for separate platform-dependent build
2334 directories. The recommended way to make a platform-dependent
2335 build directory is the following (tested on Linux), maybe with
2338 # Place yourself outside of the OpenSSL source tree. In
2339 # this example, the environment variable OPENSSL_SOURCE
2340 # is assumed to contain the absolute OpenSSL source directory.
2341 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2342 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2343 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2344 mkdir -p `dirname $F`
2345 ln -s $OPENSSL_SOURCE/$F $F
2348 To be absolutely sure not to disturb the source tree, a "make clean"
2349 is a good thing. If it isn't successfull, don't worry about it,
2350 it probably means the source directory is very clean.
2353 *) Make sure any ENGINE control commands make local copies of string
2354 pointers passed to them whenever necessary. Otherwise it is possible
2355 the caller may have overwritten (or deallocated) the original string
2356 data when a later ENGINE operation tries to use the stored values.
2357 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2359 *) Improve diagnostics in file reading and command-line digests.
2360 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2362 *) Add AES modes CFB and OFB to the object database. Correct an
2363 error in AES-CFB decryption.
2366 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2367 allows existing EVP_CIPHER_CTX structures to be reused after
2368 calling EVP_*Final(). This behaviour is used by encryption
2369 BIOs and some applications. This has the side effect that
2370 applications must explicitly clean up cipher contexts with
2371 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2374 *) Check the values of dna and dnb in bn_mul_recursive before calling
2375 bn_mul_comba (a non zero value means the a or b arrays do not contain
2376 n2 elements) and fallback to bn_mul_normal if either is not zero.
2379 *) Fix escaping of non-ASCII characters when using the -subj option
2380 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2383 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2384 form for "surname", serialNumber has no short form.
2385 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2386 therefore remove "mail" short name for "internet 7".
2387 The OID for unique identifiers in X509 certificates is
2388 x500UniqueIdentifier, not uniqueIdentifier.
2389 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2392 *) Add an "init" command to the ENGINE config module and auto initialize
2393 ENGINEs. Without any "init" command the ENGINE will be initialized
2394 after all ctrl commands have been executed on it. If init=1 the
2395 ENGINE is initailized at that point (ctrls before that point are run
2396 on the uninitialized ENGINE and after on the initialized one). If
2397 init=0 then the ENGINE will not be iniatialized at all.
2400 *) Fix the 'app_verify_callback' interface so that the user-defined
2401 argument is actually passed to the callback: In the
2402 SSL_CTX_set_cert_verify_callback() prototype, the callback
2403 declaration has been changed from
2406 int (*cb)(X509_STORE_CTX *,void *);
2407 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2408 i=s->ctx->app_verify_callback(&ctx)
2409 has been changed into
2410 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2412 To update applications using SSL_CTX_set_cert_verify_callback(),
2413 a dummy argument can be added to their callback functions.
2414 [D. K. Smetters <smetters@parc.xerox.com>]
2416 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2417 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2419 *) Add and OPENSSL_LOAD_CONF define which will cause
2420 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2421 This allows older applications to transparently support certain
2422 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2423 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2424 load the config file and OPENSSL_add_all_algorithms_conf() which will
2425 always load it have also been added.
2428 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2429 Adjust NIDs and EVP layer.
2430 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2432 *) Config modules support in openssl utility.
2434 Most commands now load modules from the config file,
2435 though in a few (such as version) this isn't done
2436 because it couldn't be used for anything.
2438 In the case of ca and req the config file used is
2439 the same as the utility itself: that is the -config
2440 command line option can be used to specify an
2444 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2445 use "openssl_conf" if filename is NULL use default openssl config file.
2448 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2449 config section name. Add a new flag to tolerate a missing config file
2450 and move code to CONF_modules_load_file().
2453 *) Support for crypto accelerator cards from Accelerated Encryption
2454 Processing, www.aep.ie. (Use engine 'aep')
2455 The support was copied from 0.9.6c [engine] and adapted/corrected
2456 to work with the new engine framework.
2457 [AEP Inc. and Richard Levitte]
2459 *) Support for SureWare crypto accelerator cards from Baltimore
2460 Technologies. (Use engine 'sureware')
2461 The support was copied from 0.9.6c [engine] and adapted
2462 to work with the new engine framework.
2465 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2466 make the newer ENGINE framework commands for the CHIL engine work.
2467 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2469 *) Make it possible to produce shared libraries on ReliantUNIX.
2470 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2472 *) Add the configuration target debug-linux-ppro.
2473 Make 'openssl rsa' use the general key loading routines
2474 implemented in apps.c, and make those routines able to
2475 handle the key format FORMAT_NETSCAPE and the variant
2477 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2479 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2480 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2482 *) Add -keyform to rsautl, and document -engine.
2483 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2485 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2486 BIO_R_NO_SUCH_FILE error code rather than the generic
2487 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2490 *) Add new functions
2492 ERR_peek_last_error_line
2493 ERR_peek_last_error_line_data.
2494 These are similar to
2497 ERR_peek_error_line_data,
2498 but report on the latest error recorded rather than the first one
2499 still in the error queue.
2500 [Ben Laurie, Bodo Moeller]
2502 *) default_algorithms option in ENGINE config module. This allows things
2504 default_algorithms = ALL
2505 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2508 *) Prelminary ENGINE config module.
2511 *) New experimental application configuration code.
2514 *) Change the AES code to follow the same name structure as all other
2515 symmetric ciphers, and behave the same way. Move everything to
2516 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2517 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2519 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2520 [Ben Laurie and Theo de Raadt]
2522 *) Add option to output public keys in req command.
2523 [Massimiliano Pala madwolf@openca.org]
2525 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2526 (up to about 10% better than before for P-192 and P-224).
2529 *) New functions/macros
2531 SSL_CTX_set_msg_callback(ctx, cb)
2532 SSL_CTX_set_msg_callback_arg(ctx, arg)
2533 SSL_set_msg_callback(ssl, cb)
2534 SSL_set_msg_callback_arg(ssl, arg)
2536 to request calling a callback function
2538 void cb(int write_p, int version, int content_type,
2539 const void *buf, size_t len, SSL *ssl, void *arg)
2541 whenever a protocol message has been completely received
2542 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2543 protocol version according to which the SSL library interprets
2544 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2545 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2546 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2547 specification (change_cipher_spec(20), alert(21), handshake(22)).
2548 'buf' and 'len' point to the actual message, 'ssl' to the
2549 SSL object, and 'arg' is the application-defined value set by
2550 SSL[_CTX]_set_msg_callback_arg().
2552 'openssl s_client' and 'openssl s_server' have new '-msg' options
2553 to enable a callback that displays all protocol messages.
2556 *) Change the shared library support so shared libraries are built as
2557 soon as the corresponding static library is finished, and thereby get
2558 openssl and the test programs linked against the shared library.
2559 This still only happens when the keyword "shard" has been given to
2560 the configuration scripts.
2562 NOTE: shared library support is still an experimental thing, and
2563 backward binary compatibility is still not guaranteed.
2564 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2566 *) Add support for Subject Information Access extension.
2567 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2569 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2570 additional bytes when new memory had to be allocated, not just
2571 when reusing an existing buffer.
2574 *) New command line and configuration option 'utf8' for the req command.
2575 This allows field values to be specified as UTF8 strings.
2578 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2579 runs for the former and machine-readable output for the latter.
2582 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2583 of the e-mail address in the DN (i.e., it will go into a certificate
2584 extension only). The new configuration file option 'email_in_dn = no'
2585 has the same effect.
2586 [Massimiliano Pala madwolf@openca.org]
2588 *) Change all functions with names starting with des_ to be starting
2589 with DES_ instead. Add wrappers that are compatible with libdes,
2590 but are named _ossl_old_des_*. Finally, add macros that map the
2591 des_* symbols to the corresponding _ossl_old_des_* if libdes
2592 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2593 desired, the des_* symbols will be mapped to DES_*, with one
2596 Since we provide two compatibility mappings, the user needs to
2597 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2598 compatibility is desired. The default (i.e., when that macro
2599 isn't defined) is OpenSSL 0.9.6c compatibility.
2601 There are also macros that enable and disable the support of old
2602 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2603 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2604 are defined, the default will apply: to support the old des routines.
2606 In either case, one must include openssl/des.h to get the correct
2607 definitions. Do not try to just include openssl/des_old.h, that
2610 NOTE: This is a major break of an old API into a new one. Software
2611 authors are encouraged to switch to the DES_ style functions. Some
2612 time in the future, des_old.h and the libdes compatibility functions
2613 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2614 default), and then completely removed.
2617 *) Test for certificates which contain unsupported critical extensions.
2618 If such a certificate is found during a verify operation it is
2619 rejected by default: this behaviour can be overridden by either
2620 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2621 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2622 X509_supported_extension() has also been added which returns 1 if a
2623 particular extension is supported.
2626 *) Modify the behaviour of EVP cipher functions in similar way to digests
2627 to retain compatibility with existing code.
2630 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2631 compatibility with existing code. In particular the 'ctx' parameter does
2632 not have to be to be initialized before the call to EVP_DigestInit() and
2633 it is tidied up after a call to EVP_DigestFinal(). New function
2634 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2635 EVP_MD_CTX_copy() changed to not require the destination to be
2636 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2637 requires the destination to be valid.
2639 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2640 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2643 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2644 so that complete 'Handshake' protocol structures are kept in memory
2645 instead of overwriting 'msg_type' and 'length' with 'body' data.
2648 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2649 [Massimo Santin via Richard Levitte]
2651 *) Major restructuring to the underlying ENGINE code. This includes
2652 reduction of linker bloat, separation of pure "ENGINE" manipulation
2653 (initialisation, etc) from functionality dealing with implementations
2654 of specific crypto iterfaces. This change also introduces integrated
2655 support for symmetric ciphers and digest implementations - so ENGINEs
2656 can now accelerate these by providing EVP_CIPHER and EVP_MD
2657 implementations of their own. This is detailed in crypto/engine/README
2658 as it couldn't be adequately described here. However, there are a few
2659 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2660 were changed in the original introduction of ENGINE code have now
2661 reverted back - the hooking from this code to ENGINE is now a good
2662 deal more passive and at run-time, operations deal directly with
2663 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2664 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2665 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2666 they were not being used by the framework as there is no concept of a
2667 BIGNUM_METHOD and they could not be generalised to the new
2668 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2669 ENGINE_cpy() has been removed as it cannot be consistently defined in
2673 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2676 *) Change mkdef.pl to sort symbols that get the same entry number,
2677 and make sure the automatically generated functions ERR_load_*
2678 become part of libeay.num as well.
2681 *) New function SSL_renegotiate_pending(). This returns true once
2682 renegotiation has been requested (either SSL_renegotiate() call
2683 or HelloRequest/ClientHello receveived from the peer) and becomes
2684 false once a handshake has been completed.
2685 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2686 sends a HelloRequest, but does not ensure that a handshake takes
2687 place. SSL_renegotiate_pending() is useful for checking if the
2688 client has followed the request.)
2691 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2692 By default, clients may request session resumption even during
2693 renegotiation (if session ID contexts permit); with this option,
2694 session resumption is possible only in the first handshake.
2696 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2697 more bits available for options that should not be part of
2698 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2701 *) Add some demos for certificate and certificate request creation.
2704 *) Make maximum certificate chain size accepted from the peer application
2705 settable (SSL*_get/set_max_cert_list()), as proposed by
2706 "Douglas E. Engert" <deengert@anl.gov>.
2709 *) Add support for shared libraries for Unixware-7
2710 (Boyd Lynn Gerber <gerberb@zenez.com>).
2713 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2714 be done prior to destruction. Use this to unload error strings from
2715 ENGINEs that load their own error strings. NB: This adds two new API
2716 functions to "get" and "set" this destroy handler in an ENGINE.
2719 *) Alter all existing ENGINE implementations (except "openssl" and
2720 "openbsd") to dynamically instantiate their own error strings. This
2721 makes them more flexible to be built both as statically-linked ENGINEs
2722 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2723 Also, add stub code to each that makes building them as self-contained
2724 shared-libraries easier (see README.ENGINE).
2727 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2728 implementations into applications that are completely implemented in
2729 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2730 commands that can be used to configure what shared-library to load and
2731 to control aspects of the way it is handled. Also, made an update to
2732 the README.ENGINE file that brings its information up-to-date and
2733 provides some information and instructions on the "dynamic" ENGINE
2734 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2737 *) Make it possible to unload ranges of ERR strings with a new
2738 "ERR_unload_strings" function.
2741 *) Add a copy() function to EVP_MD.
2744 *) Make EVP_MD routines take a context pointer instead of just the
2745 md_data void pointer.
2748 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2749 that the digest can only process a single chunk of data
2750 (typically because it is provided by a piece of
2751 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2752 is only going to provide a single chunk of data, and hence the
2753 framework needn't accumulate the data for oneshot drivers.
2756 *) As with "ERR", make it possible to replace the underlying "ex_data"
2757 functions. This change also alters the storage and management of global
2758 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2759 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2760 index counters. The API functions that use this state have been changed
2761 to take a "class_index" rather than pointers to the class's local STACK
2762 and counter, and there is now an API function to dynamically create new
2763 classes. This centralisation allows us to (a) plug a lot of the
2764 thread-safety problems that existed, and (b) makes it possible to clean
2765 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2766 such data would previously have always leaked in application code and
2767 workarounds were in place to make the memory debugging turn a blind eye
2768 to it. Application code that doesn't use this new function will still
2769 leak as before, but their memory debugging output will announce it now
2770 rather than letting it slide.
2772 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2773 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2774 has a return value to indicate success or failure.
2777 *) Make it possible to replace the underlying "ERR" functions such that the
2778 global state (2 LHASH tables and 2 locks) is only used by the "default"
2779 implementation. This change also adds two functions to "get" and "set"
2780 the implementation prior to it being automatically set the first time
2781 any other ERR function takes place. Ie. an application can call "get",
2782 pass the return value to a module it has just loaded, and that module
2783 can call its own "set" function using that value. This means the
2784 module's "ERR" operations will use (and modify) the error state in the
2785 application and not in its own statically linked copy of OpenSSL code.
2788 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2789 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2790 the operation, and provides a more encapsulated way for external code
2791 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2792 to use these functions rather than manually incrementing the counts.
2794 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2797 *) Add EVP test program.
2800 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2803 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2804 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2805 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2806 These allow a CRL to be built without having to access X509_CRL fields
2807 directly. Modify 'ca' application to use new functions.
2810 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2811 bug workarounds. Rollback attack detection is a security feature.
2812 The problem will only arise on OpenSSL servers when TLSv1 is not
2813 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2814 Software authors not wanting to support TLSv1 will have special reasons
2815 for their choice and can explicitly enable this option.
2816 [Bodo Moeller, Lutz Jaenicke]
2818 *) Rationalise EVP so it can be extended: don't include a union of
2819 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2820 (similar to those existing for EVP_CIPHER_CTX).
2825 EVP_MD_CTX_init(&md); /* new function call */
2826 EVP_DigestInit(&md, EVP_sha1());
2827 EVP_DigestUpdate(&md, in, len);
2828 EVP_DigestFinal(&md, out, NULL);
2829 EVP_MD_CTX_cleanup(&md); /* new function call */
2833 *) Make DES key schedule conform to the usual scheme, as well as
2834 correcting its structure. This means that calls to DES functions
2835 now have to pass a pointer to a des_key_schedule instead of a
2836 plain des_key_schedule (which was actually always a pointer
2839 des_key_schedule ks;
2841 des_set_key_checked(..., &ks);
2842 des_ncbc_encrypt(..., &ks, ...);
2844 (Note that a later change renames 'des_...' into 'DES_...'.)
2847 *) Initial reduction of linker bloat: the use of some functions, such as
2848 PEM causes large amounts of unused functions to be linked in due to
2849 poor organisation. For example pem_all.c contains every PEM function
2850 which has a knock on effect of linking in large amounts of (unused)
2851 ASN1 code. Grouping together similar functions and splitting unrelated
2852 functions prevents this.
2855 *) Cleanup of EVP macros.
2858 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2859 correct _ecb suffix.
2862 *) Add initial OCSP responder support to ocsp application. The
2863 revocation information is handled using the text based index
2864 use by the ca application. The responder can either handle
2865 requests generated internally, supplied in files (for example
2866 via a CGI script) or using an internal minimal server.
2869 *) Add configuration choices to get zlib compression for TLS.
2872 *) Changes to Kerberos SSL for RFC 2712 compliance:
2873 1. Implemented real KerberosWrapper, instead of just using
2874 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2875 2. Implemented optional authenticator field of KerberosWrapper.
2877 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2878 and authenticator structs; see crypto/krb5/.
2880 Generalized Kerberos calls to support multiple Kerberos libraries.
2881 [Vern Staats <staatsvr@asc.hpc.mil>,
2882 Jeffrey Altman <jaltman@columbia.edu>
2883 via Richard Levitte]
2885 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2886 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2887 values for each of the key sizes rather than having just
2888 parameters (and 'speed' generating keys each time).
2891 *) Speed up EVP routines.
2894 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2895 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2896 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2897 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2899 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2900 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2901 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2904 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2906 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2909 *) Added the OS2-EMX target.
2910 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2912 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2913 to support NCONF routines in extension code. New function CONF_set_nconf()
2914 to allow functions which take an NCONF to also handle the old LHASH
2915 structure: this means that the old CONF compatible routines can be
2916 retained (in particular wrt extensions) without having to duplicate the
2917 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2920 *) Enhance the general user interface with mechanisms for inner control
2921 and with possibilities to have yes/no kind of prompts.
2924 *) Change all calls to low level digest routines in the library and
2925 applications to use EVP. Add missing calls to HMAC_cleanup() and
2926 don't assume HMAC_CTX can be copied using memcpy().
2927 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2929 *) Add the possibility to control engines through control names but with
2930 arbitrary arguments instead of just a string.
2931 Change the key loaders to take a UI_METHOD instead of a callback
2932 function pointer. NOTE: this breaks binary compatibility with earlier
2933 versions of OpenSSL [engine].
2934 Adapt the nCipher code for these new conditions and add a card insertion
2938 *) Enhance the general user interface with mechanisms to better support
2939 dialog box interfaces, application-defined prompts, the possibility
2940 to use defaults (for example default passwords from somewhere else)
2941 and interrupts/cancellations.
2944 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2945 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2948 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2949 tidy up some unnecessarily weird code in 'sk_new()').
2950 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2952 *) Change the key loading routines for ENGINEs to use the same kind
2953 callback (pem_password_cb) as all other routines that need this
2957 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2958 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2959 than this minimum value is recommended.
2962 *) New random seeder for OpenVMS, using the system process statistics
2963 that are easily reachable.
2966 *) Windows apparently can't transparently handle global
2967 variables defined in DLLs. Initialisations such as:
2969 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2971 wont compile. This is used by the any applications that need to
2972 declare their own ASN1 modules. This was fixed by adding the option
2973 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2974 needed for static libraries under Win32.
2977 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2978 setting of purpose and trust fields. New X509_STORE trust and
2979 purpose functions and tidy up setting in other SSL functions.
2982 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2983 structure. These are inherited by X509_STORE_CTX when it is
2984 initialised. This allows various defaults to be set in the
2985 X509_STORE structure (such as flags for CRL checking and custom
2986 purpose or trust settings) for functions which only use X509_STORE_CTX
2987 internally such as S/MIME.
2989 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2990 trust settings if they are not set in X509_STORE. This allows X509_STORE
2991 purposes and trust (in S/MIME for example) to override any set by default.
2993 Add command line options for CRL checking to smime, s_client and s_server
2997 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2998 are set then the CRL is looked up in the X509_STORE structure and
2999 its validity and signature checked, then if the certificate is found
3000 in the CRL the verify fails with a revoked error.
3002 Various new CRL related callbacks added to X509_STORE_CTX structure.
3004 Command line options added to 'verify' application to support this.
3006 This needs some additional work, such as being able to handle multiple
3007 CRLs with different times, extension based lookup (rather than just
3008 by subject name) and ultimately more complete V2 CRL extension
3012 *) Add a general user interface API (crypto/ui/). This is designed
3013 to replace things like des_read_password and friends (backward
3014 compatibility functions using this new API are provided).
3015 The purpose is to remove prompting functions from the DES code
3016 section as well as provide for prompting through dialog boxes in
3017 a window system and the like.
3020 *) Add "ex_data" support to ENGINE so implementations can add state at a
3021 per-structure level rather than having to store it globally.
3024 *) Make it possible for ENGINE structures to be copied when retrieved by
3025 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3026 This causes the "original" ENGINE structure to act like a template,
3027 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3028 operational state can be localised to each ENGINE structure, despite the
3029 fact they all share the same "methods". New ENGINE structures returned in
3030 this case have no functional references and the return value is the single
3031 structural reference. This matches the single structural reference returned
3032 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3036 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3037 needs to match any other type at all we need to manually clear the
3041 *) Changes to the "openssl engine" utility to include;
3042 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3043 about an ENGINE's available control commands.
3044 - executing control commands from command line arguments using the
3045 '-pre' and '-post' switches. '-post' is only used if '-t' is
3046 specified and the ENGINE is successfully initialised. The syntax for
3047 the individual commands are colon-separated, for example;
3048 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3051 *) New dynamic control command support for ENGINEs. ENGINEs can now
3052 declare their own commands (numbers), names (strings), descriptions,
3053 and input types for run-time discovery by calling applications. A
3054 subset of these commands are implicitly classed as "executable"
3055 depending on their input type, and only these can be invoked through
3056 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3057 can be based on user input, config files, etc). The distinction is
3058 that "executable" commands cannot return anything other than a boolean
3059 result and can only support numeric or string input, whereas some
3060 discoverable commands may only be for direct use through
3061 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3062 pointers, or other custom uses. The "executable" commands are to
3063 support parameterisations of ENGINE behaviour that can be
3064 unambiguously defined by ENGINEs and used consistently across any
3065 OpenSSL-based application. Commands have been added to all the
3066 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3067 control over shared-library paths without source code alterations.
3070 *) Changed all ENGINE implementations to dynamically allocate their
3071 ENGINEs rather than declaring them statically. Apart from this being
3072 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3073 this also allows the implementations to compile without using the
3074 internal engine_int.h header.
3077 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3078 'const' value. Any code that should be able to modify a RAND_METHOD
3079 should already have non-const pointers to it (ie. they should only
3080 modify their own ones).
3083 *) Made a variety of little tweaks to the ENGINE code.
3084 - "atalla" and "ubsec" string definitions were moved from header files
3085 to C code. "nuron" string definitions were placed in variables
3086 rather than hard-coded - allowing parameterisation of these values
3087 later on via ctrl() commands.
3088 - Removed unused "#if 0"'d code.
3089 - Fixed engine list iteration code so it uses ENGINE_free() to release
3090 structural references.
3091 - Constified the RAND_METHOD element of ENGINE structures.
3092 - Constified various get/set functions as appropriate and added
3093 missing functions (including a catch-all ENGINE_cpy that duplicates
3094 all ENGINE values onto a new ENGINE except reference counts/state).
3095 - Removed NULL parameter checks in get/set functions. Setting a method
3096 or function to NULL is a way of cancelling out a previously set
3097 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3098 and doesn't justify the extra error symbols and code.
3099 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3100 flags from engine_int.h to engine.h.
3101 - Changed prototypes for ENGINE handler functions (init(), finish(),
3102 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3105 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3106 to the algorithm using long division. The binary algorithm can be
3107 used only if the modulus is odd. On 32-bit systems, it is faster
3108 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3109 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3110 up to 450 bits. In 64-bit environments, the binary algorithm
3111 appears to be advantageous for much longer moduli; here we use it
3112 for moduli up to 2048 bits.
3115 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3116 could not support the combine flag in choice fields.
3119 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3120 extensions from a certificate request to the certificate.
3123 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3124 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3125 file: this allows the display of the certificate about to be
3126 signed to be customised, to allow certain fields to be included
3127 or excluded and extension details. The old system didn't display
3128 multicharacter strings properly, omitted fields not in the policy
3129 and couldn't display additional details such as extensions.
3132 *) Function EC_POINTs_mul for multiple scalar multiplication
3133 of an arbitrary number of elliptic curve points
3134 \sum scalars[i]*points[i],
3135 optionally including the generator defined for the EC_GROUP:
3136 scalar*generator + \sum scalars[i]*points[i].
3138 EC_POINT_mul is a simple wrapper function for the typical case
3139 that the point list has just one item (besides the optional
3143 *) First EC_METHODs for curves over GF(p):
3145 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3146 operations and provides various method functions that can also
3147 operate with faster implementations of modular arithmetic.
3149 EC_GFp_mont_method() reuses most functions that are part of
3150 EC_GFp_simple_method, but uses Montgomery arithmetic.
3152 [Bodo Moeller; point addition and point doubling
3153 implementation directly derived from source code provided by
3154 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3156 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3157 crypto/ec/ec_lib.c):
3159 Curves are EC_GROUP objects (with an optional group generator)
3160 based on EC_METHODs that are built into the library.
3162 Points are EC_POINT objects based on EC_GROUP objects.
3164 Most of the framework would be able to handle curves over arbitrary
3165 finite fields, but as there are no obvious types for fields other
3166 than GF(p), some functions are limited to that for now.
3169 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3170 that the file contains a complete HTTP response.
3173 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3174 change the def and num file printf format specifier from "%-40sXXX"
3175 to "%-39s XXX". The latter will always guarantee a space after the
3176 field while the former will cause them to run together if the field
3177 is 40 of more characters long.
3180 *) Constify the cipher and digest 'method' functions and structures
3181 and modify related functions to take constant EVP_MD and EVP_CIPHER
3185 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3186 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3189 *) Modify EVP_Digest*() routines so they now return values. Although the
3190 internal software routines can never fail additional hardware versions
3194 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3196 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3197 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3200 ERR_R_NESTED_ASN1_ERROR
3202 ERR_R_MISSING_ASN1_EOS
3203 were 4 .. 9, conflicting with
3204 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3206 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3207 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3209 Add new error code 'ERR_R_INTERNAL_ERROR'.
3212 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3216 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3217 sets the subject name for a new request or supersedes the
3218 subject name in a given request. Formats that can be parsed are
3219 'CN=Some Name, OU=myOU, C=IT'
3221 'CN=Some Name/OU=myOU/C=IT'.
3223 Add options '-batch' and '-verbose' to 'openssl req'.
3224 [Massimiliano Pala <madwolf@hackmasters.net>]
3226 *) Introduce the possibility to access global variables through
3227 functions on platform were that's the best way to handle exporting
3228 global variables in shared libraries. To enable this functionality,
3229 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3230 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3231 is normally done by Configure or something similar).
3233 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3234 in the source file (foo.c) like this:
3236 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3237 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3239 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3240 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3242 OPENSSL_DECLARE_GLOBAL(int,foo);
3243 #define foo OPENSSL_GLOBAL_REF(foo)
3244 OPENSSL_DECLARE_GLOBAL(double,bar);
3245 #define bar OPENSSL_GLOBAL_REF(bar)
3247 The #defines are very important, and therefore so is including the
3248 header file everywhere where the defined globals are used.
3250 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3251 of ASN.1 items, but that structure is a bit different.
3253 The largest change is in util/mkdef.pl which has been enhanced with
3254 better and easier to understand logic to choose which symbols should
3255 go into the Windows .def files as well as a number of fixes and code
3256 cleanup (among others, algorithm keywords are now sorted
3257 lexicographically to avoid constant rewrites).
3260 *) In BN_div() keep a copy of the sign of 'num' before writing the
3261 result to 'rm' because if rm==num the value will be overwritten
3262 and produce the wrong result if 'num' is negative: this caused
3263 problems with BN_mod() and BN_nnmod().
3266 *) Function OCSP_request_verify(). This checks the signature on an
3267 OCSP request and verifies the signer certificate. The signer
3268 certificate is just checked for a generic purpose and OCSP request
3272 *) Add OCSP_check_validity() function to check the validity of OCSP
3273 responses. OCSP responses are prepared in real time and may only
3274 be a few seconds old. Simply checking that the current time lies
3275 between thisUpdate and nextUpdate max reject otherwise valid responses
3276 caused by either OCSP responder or client clock inaccuracy. Instead
3277 we allow thisUpdate and nextUpdate to fall within a certain period of
3278 the current time. The age of the response can also optionally be
3279 checked. Two new options -validity_period and -status_age added to
3283 *) If signature or public key algorithm is unrecognized print out its
3284 OID rather that just UNKNOWN.
3287 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3288 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3289 ID to be generated from the issuer certificate alone which can then be
3290 passed to OCSP_id_issuer_cmp().
3293 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3294 ASN1 modules to export functions returning ASN1_ITEM pointers
3295 instead of the ASN1_ITEM structures themselves. This adds several
3296 new macros which allow the underlying ASN1 function/structure to
3297 be accessed transparently. As a result code should not use ASN1_ITEM
3298 references directly (such as &X509_it) but instead use the relevant
3299 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3300 use of the new ASN1 code on platforms where exporting structures
3301 is problematical (for example in shared libraries) but exporting
3302 functions returning pointers to structures is not.
3305 *) Add support for overriding the generation of SSL/TLS session IDs.
3306 These callbacks can be registered either in an SSL_CTX or per SSL.
3307 The purpose of this is to allow applications to control, if they wish,
3308 the arbitrary values chosen for use as session IDs, particularly as it
3309 can be useful for session caching in multiple-server environments. A
3310 command-line switch for testing this (and any client code that wishes
3311 to use such a feature) has been added to "s_server".
3312 [Geoff Thorpe, Lutz Jaenicke]
3314 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3315 of the form '#if defined(...) || defined(...) || ...' and
3316 '#if !defined(...) && !defined(...) && ...'. This also avoids
3317 the growing number of special cases it was previously handling.
3320 *) Make all configuration macros available for application by making
3321 sure they are available in opensslconf.h, by giving them names starting
3322 with "OPENSSL_" to avoid conflicts with other packages and by making
3323 sure e_os2.h will cover all platform-specific cases together with
3325 Additionally, it is now possible to define configuration/platform-
3326 specific names (called "system identities"). In the C code, these
3327 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3328 macro with the name beginning with "OPENSSL_SYS_", which is determined
3329 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3333 *) New option -set_serial to 'req' and 'x509' this allows the serial
3334 number to use to be specified on the command line. Previously self
3335 signed certificates were hard coded with serial number 0 and the
3336 CA options of 'x509' had to use a serial number in a file which was
3340 *) New options to 'ca' utility to support V2 CRL entry extensions.
3341 Currently CRL reason, invalidity date and hold instruction are
3342 supported. Add new CRL extensions to V3 code and some new objects.
3345 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3346 disable standard block padding (aka PKCS#5 padding) in the EVP
3347 API, which was previously mandatory. This means that the data is
3348 not padded in any way and so the total length much be a multiple
3349 of the block size, otherwise an error occurs.
3352 *) Initial (incomplete) OCSP SSL support.
3355 *) New function OCSP_parse_url(). This splits up a URL into its host,
3356 port and path components: primarily to parse OCSP URLs. New -url
3357 option to ocsp utility.
3360 *) New nonce behavior. The return value of OCSP_check_nonce() now
3361 reflects the various checks performed. Applications can decide
3362 whether to tolerate certain situations such as an absent nonce
3363 in a response when one was present in a request: the ocsp application
3364 just prints out a warning. New function OCSP_add1_basic_nonce()
3365 this is to allow responders to include a nonce in a response even if
3366 the request is nonce-less.
3369 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3370 skipped when using openssl x509 multiple times on a single input file,
3371 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3374 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3375 set string type: to handle setting ASN1_TIME structures. Fix ca
3376 utility to correctly initialize revocation date of CRLs.
3379 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3380 the clients preferred ciphersuites and rather use its own preferences.
3381 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3382 Internet Explorer by ensuring unchanged hash method during stepup.
3383 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3386 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3387 to aes and add a new 'exist' option to print out symbols that don't
3391 *) Additional options to ocsp utility to allow flags to be set and
3392 additional certificates supplied.
3395 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3396 OCSP client a number of certificate to only verify the response
3400 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3401 handle the new API. Currently only ECB, CBC modes supported. Add new
3404 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3405 Encryption Standard (AES) Ciphersuites for Transport Layer
3406 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3407 not enabled by default and were not part of the "ALL" ciphersuite
3408 alias because they were not yet official; they could be
3409 explicitly requested by specifying the "AESdraft" ciphersuite
3410 group alias. In the final release of OpenSSL 0.9.7, the group
3411 alias is called "AES" and is part of "ALL".)
3412 [Ben Laurie, Steve Henson, Bodo Moeller]
3414 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3415 request to response.
3418 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3419 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3420 extract information from a certificate request. OCSP_response_create()
3421 creates a response and optionally adds a basic response structure.
3422 OCSP_basic_add1_status() adds a complete single response to a basic
3423 response and returns the OCSP_SINGLERESP structure just added (to allow
3424 extensions to be included for example). OCSP_basic_add1_cert() adds a
3425 certificate to a basic response and OCSP_basic_sign() signs a basic
3426 response with various flags. New helper functions ASN1_TIME_check()
3427 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3428 (converts ASN1_TIME to GeneralizedTime).
3431 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3432 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3433 structure from a certificate. X509_pubkey_digest() digests the public_key
3434 contents: this is used in various key identifiers.
3437 *) Make sk_sort() tolerate a NULL argument.
3438 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3440 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3441 passed by the function are trusted implicitly. If any of them signed the
3442 response then it is assumed to be valid and is not verified.
3445 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3446 to data. This was previously part of the PKCS7 ASN1 code. This
3447 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3448 [Steve Henson, reported by Kenneth R. Robinette
3449 <support@securenetterm.com>]
3451 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3452 routines: without these tracing memory leaks is very painful.
3453 Fix leaks in PKCS12 and PKCS7 routines.
3456 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3457 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3458 effectively meant GeneralizedTime would never be used. Now it
3459 is initialised to -1 but X509_time_adj() now has to check the value
3460 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3461 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3462 [Steve Henson, reported by Kenneth R. Robinette
3463 <support@securenetterm.com>]
3465 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3466 result in a zero length in the ASN1_INTEGER structure which was
3467 not consistent with the structure when d2i_ASN1_INTEGER() was used
3468 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3469 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3470 where it did not print out a minus for negative ASN1_INTEGER.
3473 *) Add summary printout to ocsp utility. The various functions which
3474 convert status values to strings have been renamed to:
3475 OCSP_response_status_str(), OCSP_cert_status_str() and
3476 OCSP_crl_reason_str() and are no longer static. New options
3477 to verify nonce values and to disable verification. OCSP response
3478 printout format cleaned up.
3481 *) Add additional OCSP certificate checks. These are those specified
3482 in RFC2560. This consists of two separate checks: the CA of the
3483 certificate being checked must either be the OCSP signer certificate
3484 or the issuer of the OCSP signer certificate. In the latter case the
3485 OCSP signer certificate must contain the OCSP signing extended key
3486 usage. This check is performed by attempting to match the OCSP
3487 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3488 in the OCSP_CERTID structures of the response.
3491 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3492 and related routines. This uses the standard OpenSSL certificate
3493 verify routines to perform initial checks (just CA validity) and
3494 to obtain the certificate chain. Then additional checks will be
3495 performed on the chain. Currently the root CA is checked to see
3496 if it is explicitly trusted for OCSP signing. This is used to set
3497 a root CA as a global signing root: that is any certificate that
3498 chains to that CA is an acceptable OCSP signing certificate.
3501 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3502 extensions from a separate configuration file.
3503 As when reading extensions from the main configuration file,
3504 the '-extensions ...' option may be used for specifying the
3506 [Massimiliano Pala <madwolf@comune.modena.it>]
3508 *) New OCSP utility. Allows OCSP requests to be generated or
3509 read. The request can be sent to a responder and the output
3510 parsed, outputed or printed in text form. Not complete yet:
3511 still needs to check the OCSP response validity.
3514 *) New subcommands for 'openssl ca':
3515 'openssl ca -status <serial>' prints the status of the cert with
3516 the given serial number (according to the index file).
3517 'openssl ca -updatedb' updates the expiry status of certificates
3519 [Massimiliano Pala <madwolf@comune.modena.it>]
3521 *) New '-newreq-nodes' command option to CA.pl. This is like
3522 '-newreq', but calls 'openssl req' with the '-nodes' option
3523 so that the resulting key is not encrypted.
3524 [Damien Miller <djm@mindrot.org>]
3526 *) New configuration for the GNU Hurd.
3527 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3529 *) Initial code to implement OCSP basic response verify. This
3530 is currently incomplete. Currently just finds the signer's
3531 certificate and verifies the signature on the response.
3534 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3535 value of OPENSSLDIR. This is available via the new '-d' option
3536 to 'openssl version', and is also included in 'openssl version -a'.
3539 *) Allowing defining memory allocation callbacks that will be given
3540 file name and line number information in additional arguments
3541 (a const char* and an int). The basic functionality remains, as
3542 well as the original possibility to just replace malloc(),
3543 realloc() and free() by functions that do not know about these
3544 additional arguments. To register and find out the current
3545 settings for extended allocation functions, the following
3546 functions are provided:
3548 CRYPTO_set_mem_ex_functions
3549 CRYPTO_set_locked_mem_ex_functions
3550 CRYPTO_get_mem_ex_functions
3551 CRYPTO_get_locked_mem_ex_functions
3553 These work the same way as CRYPTO_set_mem_functions and friends.
3554 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3555 extended allocation function is enabled.
3556 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3557 a conventional allocation function is enabled.
3558 [Richard Levitte, Bodo Moeller]
3560 *) Finish off removing the remaining LHASH function pointer casts.
3561 There should no longer be any prototype-casting required when using
3562 the LHASH abstraction, and any casts that remain are "bugs". See
3563 the callback types and macros at the head of lhash.h for details
3564 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3567 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3568 If /dev/[u]random devices are not available or do not return enough
3569 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3571 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3572 /etc/entropy will be queried once each in this sequence, quering stops
3573 when enough entropy was collected without querying more sockets.
3576 *) Change the Unix RAND_poll() variant to be able to poll several
3577 random devices, as specified by DEVRANDOM, until a sufficient amount
3578 of data has been collected. We spend at most 10 ms on each file
3579 (select timeout) and read in non-blocking mode. DEVRANDOM now
3580 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3581 (previously it was just the string "/dev/urandom"), so on typical
3582 platforms the 10 ms delay will never occur.
3583 Also separate out the Unix variant to its own file, rand_unix.c.
3584 For VMS, there's a currently-empty rand_vms.c.
3587 *) Move OCSP client related routines to ocsp_cl.c. These
3588 provide utility functions which an application needing
3589 to issue a request to an OCSP responder and analyse the
3590 response will typically need: as opposed to those which an
3591 OCSP responder itself would need which will be added later.
3593 OCSP_request_sign() signs an OCSP request with an API similar
3594 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3595 response. OCSP_response_get1_basic() extracts basic response
3596 from response. OCSP_resp_find_status(): finds and extracts status
3597 information from an OCSP_CERTID structure (which will be created
3598 when the request structure is built). These are built from lower
3599 level functions which work on OCSP_SINGLERESP structures but
3600 wont normally be used unless the application wishes to examine
3601 extensions in the OCSP response for example.
3603 Replace nonce routines with a pair of functions.
3604 OCSP_request_add1_nonce() adds a nonce value and optionally
3605 generates a random value. OCSP_check_nonce() checks the
3606 validity of the nonce in an OCSP response.
3609 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3610 This doesn't copy the supplied OCSP_CERTID and avoids the
3611 need to free up the newly created id. Change return type
3612 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3613 This can then be used to add extensions to the request.
3614 Deleted OCSP_request_new(), since most of its functionality
3615 is now in OCSP_REQUEST_new() (and the case insensitive name
3616 clash) apart from the ability to set the request name which
3617 will be added elsewhere.
3620 *) Update OCSP API. Remove obsolete extensions argument from
3621 various functions. Extensions are now handled using the new
3622 OCSP extension code. New simple OCSP HTTP function which
3623 can be used to send requests and parse the response.
3626 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3627 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3628 uses the special reorder version of SET OF to sort the attributes
3629 and reorder them to match the encoded order. This resolves a long
3630 standing problem: a verify on a PKCS7 structure just after signing
3631 it used to fail because the attribute order did not match the
3632 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3633 it uses the received order. This is necessary to tolerate some broken
3634 software that does not order SET OF. This is handled by encoding
3635 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3636 to produce the required SET OF.
3639 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3640 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3641 files to get correct declarations of the ASN.1 item variables.
3644 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3645 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3646 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3647 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3648 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3649 ASN1_ITEM and no wrapper functions.
3652 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3653 replace the old function pointer based I/O routines. Change most of
3654 the *_d2i_bio() and *_d2i_fp() functions to use these.
3657 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3658 lines, recognice more "algorithms" that can be deselected, and make
3659 it complain about algorithm deselection that isn't recognised.
3662 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3663 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3664 to use new functions. Add NO_ASN1_OLD which can be set to remove
3665 some old style ASN1 functions: this can be used to determine if old
3666 code will still work when these eventually go away.
3669 *) New extension functions for OCSP structures, these follow the
3670 same conventions as certificates and CRLs.
3673 *) New function X509V3_add1_i2d(). This automatically encodes and
3674 adds an extension. Its behaviour can be customised with various
3675 flags to append, replace or delete. Various wrappers added for
3676 certifcates and CRLs.
3679 *) Fix to avoid calling the underlying ASN1 print routine when
3680 an extension cannot be parsed. Correct a typo in the
3681 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3684 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3685 entries for variables.
3688 *) Add functionality to apps/openssl.c for detecting locking
3689 problems: As the program is single-threaded, all we have
3690 to do is register a locking callback using an array for
3691 storing which locks are currently held by the program.
3694 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3695 SSL_get_ex_data_X509_STORE_idx(), which is used in
3696 ssl_verify_cert_chain() and thus can be called at any time
3697 during TLS/SSL handshakes so that thread-safety is essential.
3698 Unfortunately, the ex_data design is not at all suited
3699 for multi-threaded use, so it probably should be abolished.
3702 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3703 [Broadcom, tweaked and integrated by Geoff Thorpe]
3705 *) Move common extension printing code to new function
3706 X509V3_print_extensions(). Reorganise OCSP print routines and
3707 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3710 *) New function X509_signature_print() to remove duplication in some
3714 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3715 set (this was treated exactly the same as SET OF previously). This
3716 is used to reorder the STACK representing the structure to match the
3717 encoding. This will be used to get round a problem where a PKCS7
3718 structure which was signed could not be verified because the STACK
3719 order did not reflect the encoded order.
3722 *) Reimplement the OCSP ASN1 module using the new code.
3725 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3726 for its ASN1 operations. The old style function pointers still exist
3727 for now but they will eventually go away.
3730 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3731 completely replaces the old ASN1 functionality with a table driven
3732 encoder and decoder which interprets an ASN1_ITEM structure describing
3733 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3734 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3735 has also been converted to the new form.
3738 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3739 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3740 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3741 for negative moduli.
3744 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3745 of not touching the result's sign bit.
3748 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3752 *) Changed the LHASH code to use prototypes for callbacks, and created
3753 macros to declare and implement thin (optionally static) functions
3754 that provide type-safety and avoid function pointer casting for the
3755 type-specific callbacks.
3758 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3760 [Veers Staats <staatsvr@asc.hpc.mil>,
3761 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3763 *) Reformat the FAQ so the different questions and answers can be divided
3764 in sections depending on the subject.
3767 *) Have the zlib compression code load ZLIB.DLL dynamically under
3771 *) New function BN_mod_sqrt for computing square roots modulo a prime
3772 (using the probabilistic Tonelli-Shanks algorithm unless
3773 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3774 be handled deterministically).
3775 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3777 *) Make BN_mod_inverse faster by explicitly handling small quotients
3778 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3779 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3782 *) New function BN_kronecker.
3785 *) Fix BN_gcd so that it works on negative inputs; the result is
3786 positive unless both parameters are zero.
3787 Previously something reasonably close to an infinite loop was
3788 possible because numbers could be growing instead of shrinking
3789 in the implementation of Euclid's algorithm.
3792 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3793 sign of the number in question.
3795 Fix BN_is_word(a,w) to work correctly for w == 0.
3797 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3798 because its test if the absolute value of 'a' equals 'w'.
3799 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3800 it exists mostly for use in the implementations of BN_is_zero(),
3801 BN_is_one(), and BN_is_word().
3804 *) New function BN_swap.
3807 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3808 the exponentiation functions are more likely to produce reasonable
3809 results on negative inputs.
3812 *) Change BN_mod_mul so that the result is always non-negative.
3813 Previously, it could be negative if one of the factors was negative;
3814 I don't think anyone really wanted that behaviour.
3817 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3818 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3819 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3820 and add new functions:
3829 BN_mod_lshift1_quick
3833 These functions always generate non-negative results.
3835 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3836 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3838 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3839 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3840 be reduced modulo m.
3841 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3844 The following entry accidentily appeared in the CHANGES file
3845 distributed with OpenSSL 0.9.7. The modifications described in
3846 it do *not* apply to OpenSSL 0.9.7.
3848 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3849 was actually never needed) and in BN_mul(). The removal in BN_mul()
3850 required a small change in bn_mul_part_recursive() and the addition
3851 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3852 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3853 bn_sub_words() and bn_add_words() except they take arrays with
3858 *) In 'openssl passwd', verify passwords read from the terminal
3859 unless the '-salt' option is used (which usually means that
3860 verification would just waste user's time since the resulting
3861 hash is going to be compared with some given password hash)
3862 or the new '-noverify' option is used.
3864 This is an incompatible change, but it does not affect
3865 non-interactive use of 'openssl passwd' (passwords on the command
3866 line, '-stdin' option, '-in ...' option) and thus should not
3870 *) Remove all references to RSAref, since there's no more need for it.
3873 *) Make DSO load along a path given through an environment variable
3874 (SHLIB_PATH) with shl_load().
3877 *) Constify the ENGINE code as a result of BIGNUM constification.
3878 Also constify the RSA code and most things related to it. In a
3879 few places, most notable in the depth of the ASN.1 code, ugly
3880 casts back to non-const were required (to be solved at a later
3884 *) Make it so the openssl application has all engines loaded by default.
3887 *) Constify the BIGNUM routines a little more.
3890 *) Add the following functions:
3892 ENGINE_load_cswift()
3894 ENGINE_load_atalla()
3896 ENGINE_load_builtin_engines()
3898 That way, an application can itself choose if external engines that
3899 are built-in in OpenSSL shall ever be used or not. The benefit is
3900 that applications won't have to be linked with libdl or other dso
3901 libraries unless it's really needed.
3903 Changed 'openssl engine' to load all engines on demand.
3904 Changed the engine header files to avoid the duplication of some
3905 declarations (they differed!).
3908 *) 'openssl engine' can now list capabilities.
3911 *) Better error reporting in 'openssl engine'.
3914 *) Never call load_dh_param(NULL) in s_server.
3917 *) Add engine application. It can currently list engines by name and
3918 identity, and test if they are actually available.
3921 *) Improve RPM specification file by forcing symbolic linking and making
3922 sure the installed documentation is also owned by root.root.
3923 [Damien Miller <djm@mindrot.org>]
3925 *) Give the OpenSSL applications more possibilities to make use of
3926 keys (public as well as private) handled by engines.
3929 *) Add OCSP code that comes from CertCo.
3932 *) Add VMS support for the Rijndael code.
3935 *) Added untested support for Nuron crypto accelerator.
3938 *) Add support for external cryptographic devices. This code was
3939 previously distributed separately as the "engine" branch.
3940 [Geoff Thorpe, Richard Levitte]
3942 *) Rework the filename-translation in the DSO code. It is now possible to
3943 have far greater control over how a "name" is turned into a filename
3944 depending on the operating environment and any oddities about the
3945 different shared library filenames on each system.
3948 *) Support threads on FreeBSD-elf in Configure.
3951 *) Fix for SHA1 assembly problem with MASM: it produces
3952 warnings about corrupt line number information when assembling
3953 with debugging information. This is caused by the overlapping
3955 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3958 NCONF_get_number() has no error checking at all. As a replacement,
3959 NCONF_get_number_e() is defined (_e for "error checking") and is
3960 promoted strongly. The old NCONF_get_number is kept around for
3961 binary backward compatibility.
3962 Make it possible for methods to load from something other than a BIO,
3963 by providing a function pointer that is given a name instead of a BIO.
3964 For example, this could be used to load configuration data from an
3968 *) Fix for non blocking accept BIOs. Added new I/O special reason
3969 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3970 with non blocking I/O was not possible because no retry code was
3971 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3975 *) Added the beginnings of Rijndael support.
3978 *) Fix for bug in DirectoryString mask setting. Add support for
3979 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3980 to allow certificate printing to more controllable, additional
3981 'certopt' option to 'x509' to allow new printing options to be
3985 *) Clean old EAY MD5 hack from e_os.h.
3988 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3990 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3991 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3992 [Joe Orton, Steve Henson]
3994 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3996 *) Fix additional bug revealed by the NISCC test suite:
3998 Stop bug triggering large recursion when presented with
3999 certain ASN.1 tags (CVE-2003-0851)
4002 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4004 *) Fix various bugs revealed by running the NISCC test suite:
4006 Stop out of bounds reads in the ASN1 code when presented with
4007 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4009 If verify callback ignores invalid public key errors don't try to check
4010 certificate signature with the NULL public key.
4014 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4015 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4019 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4020 extra data after the compression methods not only for TLS 1.0
4021 but also for SSL 3.0 (as required by the specification).
4022 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4024 *) Change X509_certificate_type() to mark the key as exported/exportable
4025 when it's 512 *bits* long, not 512 bytes.
4028 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4030 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4031 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4032 a protocol version number mismatch like a decryption error
4033 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4036 *) Turn on RSA blinding by default in the default implementation
4037 to avoid a timing attack. Applications that don't want it can call
4038 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4039 They would be ill-advised to do so in most cases.
4040 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4042 *) Change RSA blinding code so that it works when the PRNG is not
4043 seeded (in this case, the secret RSA exponent is abused as
4044 an unpredictable seed -- if it is not unpredictable, there
4045 is no point in blinding anyway). Make RSA blinding thread-safe
4046 by remembering the creator's thread ID in rsa->blinding and
4047 having all other threads use local one-time blinding factors
4048 (this requires more computation than sharing rsa->blinding, but
4049 avoids excessive locking; and if an RSA object is not shared
4050 between threads, blinding will still be very fast).
4053 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4055 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4056 via timing by performing a MAC computation even if incorrrect
4057 block cipher padding has been found. This is a countermeasure
4058 against active attacks where the attacker has to distinguish
4059 between bad padding and a MAC verification error. (CVE-2003-0078)
4061 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4062 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4063 Martin Vuagnoux (EPFL, Ilion)]
4065 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4067 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4068 memory from it's contents. This is done with a counter that will
4069 place alternating values in each byte. This can be used to solve
4070 two issues: 1) the removal of calls to memset() by highly optimizing
4071 compilers, and 2) cleansing with other values than 0, since those can
4072 be read through on certain media, for example a swap space on disk.
4075 *) Bugfix: client side session caching did not work with external caching,
4076 because the session->cipher setting was not restored when reloading
4077 from the external cache. This problem was masked, when
4078 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4079 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4082 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4083 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4084 [Zeev Lieber <zeev-l@yahoo.com>]
4086 *) Undo an undocumented change introduced in 0.9.6e which caused
4087 repeated calls to OpenSSL_add_all_ciphers() and
4088 OpenSSL_add_all_digests() to be ignored, even after calling
4092 *) Change the default configuration reader to deal with last line not
4093 being properly terminated.
4096 *) Change X509_NAME_cmp() so it applies the special rules on handling
4097 DN values that are of type PrintableString, as well as RDNs of type
4098 emailAddress where the value has the type ia5String.
4099 [stefank@valicert.com via Richard Levitte]
4101 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4102 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4103 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4104 the bitwise-OR of the two for use by the majority of applications
4105 wanting this behaviour, and update the docs. The documented
4106 behaviour and actual behaviour were inconsistent and had been
4107 changing anyway, so this is more a bug-fix than a behavioural
4109 [Geoff Thorpe, diagnosed by Nadav Har'El]
4111 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4112 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4115 *) Fix initialization code race conditions in
4116 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4117 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4118 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4119 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4120 ssl2_get_cipher_by_char(),
4121 ssl3_get_cipher_by_char().
4122 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4124 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4125 the cached sessions are flushed, as the remove_cb() might use ex_data
4126 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4127 (see [openssl.org #212]).
4128 [Geoff Thorpe, Lutz Jaenicke]
4130 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4131 length, instead of the encoding length to d2i_ASN1_OBJECT.
4134 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4136 *) [In 0.9.6g-engine release:]
4137 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4138 [Lynn Gazis <lgazis@rainbow.com>]
4140 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4142 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4143 and get fix the header length calculation.
4144 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4145 Alon Kantor <alonk@checkpoint.com> (and others),
4148 *) Use proper error handling instead of 'assertions' in buffer
4149 overflow checks added in 0.9.6e. This prevents DoS (the
4150 assertions could call abort()).
4151 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4153 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4155 *) Add various sanity checks to asn1_get_length() to reject
4156 the ASN1 length bytes if they exceed sizeof(long), will appear
4157 negative or the content length exceeds the length of the
4159 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4161 *) Fix cipher selection routines: ciphers without encryption had no flags
4162 for the cipher strength set and where therefore not handled correctly
4163 by the selection routines (PR #130).
4166 *) Fix EVP_dsa_sha macro.
4170 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4171 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4172 that was added in OpenSSL 0.9.6d.
4174 As the countermeasure turned out to be incompatible with some
4175 broken SSL implementations, the new option is part of SSL_OP_ALL.
4176 SSL_OP_ALL is usually employed when compatibility with weird SSL
4177 implementations is desired (e.g. '-bugs' option to 's_client' and
4178 's_server'), so the new option is automatically set in many
4182 *) Changes in security patch:
4184 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4185 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4186 Air Force Materiel Command, USAF, under agreement number
4189 *) Add various sanity checks to asn1_get_length() to reject
4190 the ASN1 length bytes if they exceed sizeof(long), will appear
4191 negative or the content length exceeds the length of the
4192 supplied buffer. (CVE-2002-0659)
4193 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4195 *) Assertions for various potential buffer overflows, not known to
4197 [Ben Laurie (CHATS)]
4199 *) Various temporary buffers to hold ASCII versions of integers were
4200 too small for 64 bit platforms. (CVE-2002-0655)
4201 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4203 *) Remote buffer overflow in SSL3 protocol - an attacker could
4204 supply an oversized session ID to a client. (CVE-2002-0656)
4205 [Ben Laurie (CHATS)]
4207 *) Remote buffer overflow in SSL2 protocol - an attacker could
4208 supply an oversized client master key. (CVE-2002-0656)
4209 [Ben Laurie (CHATS)]
4211 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4213 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4214 encoded as NULL) with id-dsa-with-sha1.
4215 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4217 *) Check various X509_...() return values in apps/req.c.
4218 [Nils Larsch <nla@trustcenter.de>]
4220 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4221 an end-of-file condition would erronously be flagged, when the CRLF
4222 was just at the end of a processed block. The bug was discovered when
4223 processing data through a buffering memory BIO handing the data to a
4224 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4225 <ptsekov@syntrex.com> and Nedelcho Stanev.
4228 *) Implement a countermeasure against a vulnerability recently found
4229 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4230 before application data chunks to avoid the use of known IVs
4231 with data potentially chosen by the attacker.
4234 *) Fix length checks in ssl3_get_client_hello().
4237 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4238 to prevent ssl3_read_internal() from incorrectly assuming that
4239 ssl3_read_bytes() found application data while handshake
4240 processing was enabled when in fact s->s3->in_read_app_data was
4241 merely automatically cleared during the initial handshake.
4242 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4244 *) Fix object definitions for Private and Enterprise: they were not
4245 recognized in their shortname (=lowercase) representation. Extend
4246 obj_dat.pl to issue an error when using undefined keywords instead
4247 of silently ignoring the problem (Svenning Sorensen
4248 <sss@sss.dnsalias.net>).
4251 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4252 generators, i.e. generators other than 2 and 5. (Previously, the
4253 code did not properly initialise the 'add' and 'rem' values to
4254 BN_generate_prime().)
4256 In the new general case, we do not insist that 'generator' is
4257 actually a primitive root: This requirement is rather pointless;
4258 a generator of the order-q subgroup is just as good, if not
4262 *) Map new X509 verification errors to alerts. Discovered and submitted by
4263 Tom Wu <tom@arcot.com>.
4266 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4267 returning non-zero before the data has been completely received
4268 when using non-blocking I/O.
4269 [Bodo Moeller; problem pointed out by John Hughes]
4271 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4272 [Ben Laurie, Lutz Jaenicke]
4274 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4275 Yoram Zahavi <YoramZ@gilian.com>).
4278 *) Add information about CygWin 1.3 and on, and preserve proper
4279 configuration for the versions before that.
4280 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4282 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4283 check whether we deal with a copy of a session and do not delete from
4284 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4285 <izhar@checkpoint.com>.
4288 *) Do not store session data into the internal session cache, if it
4289 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4290 flag is set). Proposed by Aslam <aslam@funk.com>.
4293 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4297 *) [In 0.9.6d-engine release:]
4298 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4299 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4301 *) Add the configuration target linux-s390x.
4302 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4304 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4305 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4306 variable as an indication that a ClientHello message has been
4307 received. As the flag value will be lost between multiple
4308 invocations of ssl3_accept when using non-blocking I/O, the
4309 function may not be aware that a handshake has actually taken
4310 place, thus preventing a new session from being added to the
4313 To avoid this problem, we now set s->new_session to 2 instead of
4314 using a local variable.
4315 [Lutz Jaenicke, Bodo Moeller]
4317 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4318 if the SSL_R_LENGTH_MISMATCH error is detected.
4319 [Geoff Thorpe, Bodo Moeller]
4321 *) New 'shared_ldflag' column in Configure platform table.
4324 *) Fix EVP_CIPHER_mode macro.
4325 ["Dan S. Camper" <dan@bti.net>]
4327 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4328 type, we must throw them away by setting rr->length to 0.
4329 [D P Chang <dpc@qualys.com>]
4331 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4333 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4334 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4335 worked incorrectly for those cases where range = 10..._2 and
4336 3*range is two bits longer than range.)
4339 *) Only add signing time to PKCS7 structures if it is not already
4343 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4344 OBJ_ld_ce should be OBJ_id_ce.
4345 Also some ip-pda OIDs in crypto/objects/objects.txt were
4346 incorrect (cf. RFC 3039).
4347 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4349 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4350 returns early because it has nothing to do.
4351 [Andy Schneider <andy.schneider@bjss.co.uk>]
4353 *) [In 0.9.6c-engine release:]
4354 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4355 [Andy Schneider <andy.schneider@bjss.co.uk>]
4357 *) [In 0.9.6c-engine release:]
4358 Add support for Cryptographic Appliance's keyserver technology.
4359 (Use engine 'keyclient')
4360 [Cryptographic Appliances and Geoff Thorpe]
4362 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4363 is called via tools/c89.sh because arguments have to be
4364 rearranged (all '-L' options must appear before the first object
4366 [Richard Shapiro <rshapiro@abinitio.com>]
4368 *) [In 0.9.6c-engine release:]
4369 Add support for Broadcom crypto accelerator cards, backported
4371 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4373 *) [In 0.9.6c-engine release:]
4374 Add support for SureWare crypto accelerator cards from
4375 Baltimore Technologies. (Use engine 'sureware')
4376 [Baltimore Technologies and Mark Cox]
4378 *) [In 0.9.6c-engine release:]
4379 Add support for crypto accelerator cards from Accelerated
4380 Encryption Processing, www.aep.ie. (Use engine 'aep')
4381 [AEP Inc. and Mark Cox]
4383 *) Add a configuration entry for gcc on UnixWare.
4384 [Gary Benson <gbenson@redhat.com>]
4386 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4387 messages are stored in a single piece (fixed-length part and
4388 variable-length part combined) and fix various bugs found on the way.
4391 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4392 instead. BIO_gethostbyname() does not know what timeouts are
4393 appropriate, so entries would stay in cache even when they have
4395 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4397 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4398 faced with a pathologically small ClientHello fragment that does
4399 not contain client_version: Instead of aborting with an error,
4400 simply choose the highest available protocol version (i.e.,
4401 TLS 1.0 unless it is disabled). In practice, ClientHello
4402 messages are never sent like this, but this change gives us
4403 strictly correct behaviour at least for TLS.
4406 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4407 never resets s->method to s->ctx->method when called from within
4408 one of the SSL handshake functions.
4409 [Bodo Moeller; problem pointed out by Niko Baric]
4411 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4412 (sent using the client's version number) if client_version is
4413 smaller than the protocol version in use. Also change
4414 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4415 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4416 the client will at least see that alert.
4419 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4423 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4424 client receives HelloRequest while in a handshake.
4425 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4427 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4428 should end in 'break', not 'goto end' which circuments various
4429 cleanups done in state SSL_ST_OK. But session related stuff
4430 must be disabled for SSL_ST_OK in the case that we just sent a
4433 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4434 before just sending a HelloRequest.
4435 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4437 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4438 reveal whether illegal block cipher padding was found or a MAC
4439 verification error occured. (Neither SSLerr() codes nor alerts
4440 are directly visible to potential attackers, but the information
4441 may leak via logfiles.)
4443 Similar changes are not required for the SSL 2.0 implementation
4444 because the number of padding bytes is sent in clear for SSL 2.0,
4445 and the extra bytes are just ignored. However ssl/s2_pkt.c
4446 failed to verify that the purported number of padding bytes is in
4450 *) Add OpenUNIX-8 support including shared libraries
4451 (Boyd Lynn Gerber <gerberb@zenez.com>).
4454 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4455 'wristwatch attack' using huge encoding parameters (cf.
4456 James H. Manger's CRYPTO 2001 paper). Note that the
4457 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4458 encoding parameters and hence was not vulnerable.
4461 *) BN_sqr() bug fix.
4462 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4464 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4465 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4466 followed by modular reduction.
4467 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4469 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4470 equivalent based on BN_pseudo_rand() instead of BN_rand().
4473 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4474 This function was broken, as the check for a new client hello message
4475 to handle SGC did not allow these large messages.
4476 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4479 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4482 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4483 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4486 *) Rework the configuration and shared library support for Tru64 Unix.
4487 The configuration part makes use of modern compiler features and
4488 still retains old compiler behavior for those that run older versions
4489 of the OS. The shared library support part includes a variant that
4490 uses the RPATH feature, and is available through the special
4491 configuration target "alpha-cc-rpath", which will never be selected
4493 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4495 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4496 with the same message size as in ssl3_get_certificate_request().
4497 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4498 messages might inadvertently be reject as too long.
4499 [Petr Lampa <lampa@fee.vutbr.cz>]
4501 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4504 *) Modified SSL library such that the verify_callback that has been set
4505 specificly for an SSL object with SSL_set_verify() is actually being
4506 used. Before the change, a verify_callback set with this function was
4507 ignored and the verify_callback() set in the SSL_CTX at the time of
4508 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4509 to allow the necessary settings.
4512 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4513 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4514 done automatically (in contradiction to the requirements of the C
4515 standard). This made problems when used from OpenSSH.
4518 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4519 dh->length and always used
4521 BN_rand_range(priv_key, dh->p).
4523 BN_rand_range() is not necessary for Diffie-Hellman, and this
4524 specific range makes Diffie-Hellman unnecessarily inefficient if
4525 dh->length (recommended exponent length) is much smaller than the
4526 length of dh->p. We could use BN_rand_range() if the order of
4527 the subgroup was stored in the DH structure, but we only have
4532 BN_rand(priv_key, l, ...)
4534 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4540 RSA_eay_public_encrypt
4541 RSA_eay_private_decrypt
4542 RSA_eay_private_encrypt (signing)
4543 RSA_eay_public_decrypt (signature verification)
4545 (default implementations for RSA_public_encrypt,
4546 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4547 always reject numbers >= n.
4550 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4551 to synchronize access to 'locking_thread'. This is necessary on
4552 systems where access to 'locking_thread' (an 'unsigned long'
4553 variable) is not atomic.
4556 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4557 *before* setting the 'crypto_lock_rand' flag. The previous code had
4558 a race condition if 0 is a valid thread ID.
4559 [Travis Vitek <vitek@roguewave.com>]
4561 *) Add support for shared libraries under Irix.
4562 [Albert Chin-A-Young <china@thewrittenword.com>]
4564 *) Add configuration option to build on Linux on both big-endian and
4566 [Ralf Baechle <ralf@uni-koblenz.de>]
4568 *) Add the possibility to create shared libraries on HP-UX.
4571 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4573 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4574 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4575 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4576 PRNG state recovery was possible based on the output of
4577 one PRNG request appropriately sized to gain knowledge on
4578 'md' followed by enough consecutive 1-byte PRNG requests
4579 to traverse all of 'state'.
4581 1. When updating 'md_local' (the current thread's copy of 'md')
4582 during PRNG output generation, hash all of the previous
4583 'md_local' value, not just the half used for PRNG output.
4585 2. Make the number of bytes from 'state' included into the hash
4586 independent from the number of PRNG bytes requested.
4588 The first measure alone would be sufficient to avoid
4589 Markku-Juhani's attack. (Actually it had never occurred
4590 to me that the half of 'md_local' used for chaining was the
4591 half from which PRNG output bytes were taken -- I had always
4592 assumed that the secret half would be used.) The second
4593 measure makes sure that additional data from 'state' is never
4594 mixed into 'md_local' in small portions; this heuristically
4595 further strengthens the PRNG.
4598 *) Fix crypto/bn/asm/mips3.s.
4601 *) When only the key is given to "enc", the IV is undefined. Print out
4602 an error message in this case.
4605 *) Handle special case when X509_NAME is empty in X509 printing routines.
4608 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4609 positive and less than q.
4612 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4613 used: it isn't thread safe and the add_lock_callback should handle
4615 [Paul Rose <Paul.Rose@bridge.com>]
4617 *) Verify that incoming data obeys the block size in
4618 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4622 [Ulf Möller, Bodo Möller]
4624 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4625 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4626 when fixing the server behaviour for backwards-compatible 'client
4627 hello' messages. (Note that the attack is impractical against
4628 SSL 3.0 and TLS 1.0 anyway because length and version checking
4629 means that the probability of guessing a valid ciphertext is
4630 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4633 Before 0.9.5, the countermeasure (hide the error by generating a
4634 random 'decryption result') did not work properly because
4635 ERR_clear_error() was missing, meaning that SSL_get_error() would
4636 detect the supposedly ignored error.
4638 Both problems are now fixed.
4641 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4642 (previously it was 1024).
4645 *) Fix for compatibility mode trust settings: ignore trust settings
4646 unless some valid trust or reject settings are present.
4649 *) Fix for blowfish EVP: its a variable length cipher.
4652 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4653 parameters in DSA public key structures and return an error in the
4654 DSA routines if parameters are absent.
4657 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4658 in the current directory if neither $RANDFILE nor $HOME was set.
4659 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4660 caused some confusion to Windows users who haven't defined $HOME.
4661 Thus RAND_file_name() is changed again: e_os.h can define a
4662 DEFAULT_HOME, which will be used if $HOME is not set.
4663 For Windows, we use "C:"; on other platforms, we still require
4664 environment variables.
4666 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4667 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4668 having multiple threads call RAND_poll() concurrently.
4671 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4672 combination of a flag and a thread ID variable.
4673 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4674 flag), *other* threads can enter ssleay_add_bytes without obeying
4675 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4676 that they do not hold after the first thread unsets add_do_not_lock).
4679 *) Change bctest again: '-x' expressions are not available in all
4683 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4685 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4686 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4688 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4689 the default extension for executables, if any. Also, make the perl
4690 scripts that use symlink() to test if it really exists and use "cp"
4691 if it doesn't. All this made OpenSSL compilable and installable in
4695 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4696 If SEQUENCE is length is indefinite just set c->slen to the total
4697 amount of data available.
4698 [Steve Henson, reported by shige@FreeBSD.org]
4699 [This change does not apply to 0.9.7.]
4701 *) Change bctest to avoid here-documents inside command substitution
4702 (workaround for FreeBSD /bin/sh bug).
4703 For compatibility with Ultrix, avoid shell functions (introduced
4704 in the bctest version that searches along $PATH).
4707 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4708 with des_encrypt() defined on some operating systems, like Solaris
4712 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4713 On the Importance of Eliminating Errors in Cryptographic
4714 Computations, J. Cryptology 14 (2001) 2, 101-119,
4715 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4718 *) MIPS assembler BIGNUM division bug fix.
4721 *) Disabled incorrect Alpha assembler code.
4724 *) Fix PKCS#7 decode routines so they correctly update the length
4725 after reading an EOC for the EXPLICIT tag.
4727 [This change does not apply to 0.9.7.]
4729 *) Fix bug in PKCS#12 key generation routines. This was triggered
4730 if a 3DES key was generated with a 0 initial byte. Include
4731 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4732 (but broken) behaviour.
4735 *) Enhance bctest to search for a working bc along $PATH and print
4737 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4739 *) Fix memory leaks in err.c: free err_data string if necessary;
4740 don't write to the wrong index in ERR_set_error_data.
4743 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4747 *) Replace rdtsc with _emit statements for VC++ version 5.
4748 [Jeremy Cooper <jeremy@baymoo.org>]
4750 *) Make it possible to reuse SSLv2 sessions.
4753 *) In copy_email() check for >= 0 as a return value for
4754 X509_NAME_get_index_by_NID() since 0 is a valid index.
4755 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4757 *) Avoid coredump with unsupported or invalid public keys by checking if
4758 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4759 PKCS7_verify() fails with non detached data.
4762 *) Don't use getenv in library functions when run as setuid/setgid.
4763 New function OPENSSL_issetugid().
4766 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4767 due to incorrect handling of multi-threading:
4769 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4771 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4773 3. Count how many times MemCheck_off() has been called so that
4774 nested use can be treated correctly. This also avoids
4775 inband-signalling in the previous code (which relied on the
4776 assumption that thread ID 0 is impossible).
4779 *) Add "-rand" option also to s_client and s_server.
4782 *) Fix CPU detection on Irix 6.x.
4783 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4784 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4786 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4789 [This change does not apply to 0.9.7.]
4791 *) Use the cached encoding of an X509_NAME structure rather than
4792 copying it. This is apparently the reason for the libsafe "errors"
4793 but the code is actually correct.
4796 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4797 Bleichenbacher's DSA attack.
4798 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4799 to be set and top=0 forces the highest bit to be set; top=-1 is new
4800 and leaves the highest bit random.
4801 [Ulf Moeller, Bodo Moeller]
4803 *) In the NCONF_...-based implementations for CONF_... queries
4804 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4805 a temporary CONF structure with the data component set to NULL
4806 (which gives segmentation faults in lh_retrieve).
4807 Instead, use NULL for the CONF pointer in CONF_get_string and
4808 CONF_get_number (which may use environment variables) and directly
4809 return NULL from CONF_get_section.
4812 *) Fix potential buffer overrun for EBCDIC.
4815 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4816 keyUsage if basicConstraints absent for a CA.
4819 *) Make SMIME_write_PKCS7() write mail header values with a format that
4820 is more generally accepted (no spaces before the semicolon), since
4821 some programs can't parse those values properly otherwise. Also make
4822 sure BIO's that break lines after each write do not create invalid
4826 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4827 macros previously used would not encode an empty SEQUENCE OF
4828 and break the signature.
4830 [This change does not apply to 0.9.7.]
4832 *) Zero the premaster secret after deriving the master secret in
4836 *) Add some EVP_add_digest_alias registrations (as found in
4837 OpenSSL_add_all_digests()) to SSL_library_init()
4838 aka OpenSSL_add_ssl_algorithms(). This provides improved
4839 compatibility with peers using X.509 certificates
4840 with unconventional AlgorithmIdentifier OIDs.
4843 *) Fix for Irix with NO_ASM.
4844 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4846 *) ./config script fixes.
4847 [Ulf Moeller, Richard Levitte]
4849 *) Fix 'openssl passwd -1'.
4852 *) Change PKCS12_key_gen_asc() so it can cope with non null
4853 terminated strings whose length is passed in the passlen
4854 parameter, for example from PEM callbacks. This was done
4855 by adding an extra length parameter to asc2uni().
4856 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4858 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4859 call failed, free the DSA structure.
4862 *) Fix to uni2asc() to cope with zero length Unicode strings.
4863 These are present in some PKCS#12 files.
4866 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4867 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4868 when writing a 32767 byte record.
4869 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4871 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4872 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4874 (RSA objects have a reference count access to which is protected
4875 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4876 so they are meant to be shared between threads.)
4877 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4878 "Reddie, Steven" <Steven.Reddie@ca.com>]
4880 *) Fix a deadlock in CRYPTO_mem_leaks().
4883 *) Use better test patterns in bntest.
4886 *) rand_win.c fix for Borland C.
4889 *) BN_rshift bugfix for n == 0.
4892 *) Add a 'bctest' script that checks for some known 'bc' bugs
4893 so that 'make test' does not abort just because 'bc' is broken.
4896 *) Store verify_result within SSL_SESSION also for client side to
4897 avoid potential security hole. (Re-used sessions on the client side
4898 always resulted in verify_result==X509_V_OK, not using the original
4899 result of the server certificate verification.)
4902 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4903 SSL3_RT_APPLICATION_DATA, return 0.
4904 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4908 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4909 releases, have been re-implemented by renaming the previous
4910 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4911 and ssl3_read_internal, respectively, and adding 'peek' parameters
4912 to them. The new ssl[23]_{read,peek} functions are calls to
4913 ssl[23]_read_internal with the 'peek' flag set appropriately.
4914 A 'peek' parameter has also been added to ssl3_read_bytes, which
4915 does the actual work for ssl3_read_internal.
4918 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4919 the method-specific "init()" handler. Also clean up ex_data after
4920 calling the method-specific "finish()" handler. Previously, this was
4921 happening the other way round.
4924 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4925 The previous value, 12, was not always sufficient for BN_mod_exp().
4928 *) Make sure that shared libraries get the internal name engine with
4929 the full version number and not just 0. This should mark the
4930 shared libraries as not backward compatible. Of course, this should
4931 be changed again when we can guarantee backward binary compatibility.
4934 *) Fix typo in get_cert_by_subject() in by_dir.c
4935 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4937 *) Rework the system to generate shared libraries:
4939 - Make note of the expected extension for the shared libraries and
4940 if there is a need for symbolic links from for example libcrypto.so.0
4941 to libcrypto.so.0.9.7. There is extended info in Configure for
4944 - Make as few rebuilds of the shared libraries as possible.
4946 - Still avoid linking the OpenSSL programs with the shared libraries.
4948 - When installing, install the shared libraries separately from the
4952 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4954 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4955 and not in SSL_clear because the latter is also used by the
4956 accept/connect functions; previously, the settings made by
4957 SSL_set_read_ahead would be lost during the handshake.
4958 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4960 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4961 Previously, it would create entries for disableed algorithms no
4965 *) Added several new manual pages for SSL_* function.
4968 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4970 *) In ssl23_get_client_hello, generate an error message when faced
4971 with an initial SSL 3.0/TLS record that is too small to contain the
4972 first two bytes of the ClientHello message, i.e. client_version.
4973 (Note that this is a pathologic case that probably has never happened
4974 in real life.) The previous approach was to use the version number
4975 from the record header as a substitute; but our protocol choice
4976 should not depend on that one because it is not authenticated
4977 by the Finished messages.
4980 *) More robust randomness gathering functions for Windows.
4981 [Jeffrey Altman <jaltman@columbia.edu>]
4983 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4984 not set then we don't setup the error code for issuer check errors
4985 to avoid possibly overwriting other errors which the callback does
4986 handle. If an application does set the flag then we assume it knows
4987 what it is doing and can handle the new informational codes
4991 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4992 a general "ANY" type, as such it should be able to decode anything
4993 including tagged types. However it didn't check the class so it would
4994 wrongly interpret tagged types in the same way as their universal
4995 counterpart and unknown types were just rejected. Changed so that the
4996 tagged and unknown types are handled in the same way as a SEQUENCE:
4997 that is the encoding is stored intact. There is also a new type
4998 "V_ASN1_OTHER" which is used when the class is not universal, in this
4999 case we have no idea what the actual type is so we just lump them all
5003 *) On VMS, stdout may very well lead to a file that is written to
5004 in a record-oriented fashion. That means that every write() will
5005 write a separate record, which will be read separately by the
5006 programs trying to read from it. This can be very confusing.
5008 The solution is to put a BIO filter in the way that will buffer
5009 text until a linefeed is reached, and then write everything a
5010 line at a time, so every record written will be an actual line,
5011 not chunks of lines and not (usually doesn't happen, but I've
5012 seen it once) several lines in one record. BIO_f_linebuffer() is
5015 Currently, it's a VMS-only method, because that's where it has
5016 been tested well enough.
5019 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5020 it can return incorrect results.
5021 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5022 but it was in 0.9.6-beta[12].)
5025 *) Disable the check for content being present when verifying detached
5026 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5027 include zero length content when signing messages.
5030 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5031 BIO_ctrl (for BIO pairs).
5034 *) Add DSO method for VMS.
5037 *) Bug fix: Montgomery multiplication could produce results with the
5041 *) Add RPM specification openssl.spec and modify it to build three
5042 packages. The default package contains applications, application
5043 documentation and run-time libraries. The devel package contains
5044 include files, static libraries and function documentation. The
5045 doc package contains the contents of the doc directory. The original
5046 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5049 *) Add a large number of documentation files for many SSL routines.
5050 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5052 *) Add a configuration entry for Sony News 4.
5053 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5055 *) Don't set the two most significant bits to one when generating a
5056 random number < q in the DSA library.
5059 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5060 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5061 the underlying transport is blocking) if a handshake took place.
5062 (The default behaviour is needed by applications such as s_client
5063 and s_server that use select() to determine when to use SSL_read;
5064 but for applications that know in advance when to expect data, it
5065 just makes things more complicated.)
5068 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5072 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5073 work better on such systems.
5074 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5076 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5077 Update PKCS12_parse() so it copies the friendlyName and the
5078 keyid to the certificates aux info.
5081 *) Fix bug in PKCS7_verify() which caused an infinite loop
5082 if there was more than one signature.
5083 [Sven Uszpelkat <su@celocom.de>]
5085 *) Major change in util/mkdef.pl to include extra information
5086 about each symbol, as well as presentig variables as well
5087 as functions. This change means that there's n more need
5088 to rebuild the .num files when some algorithms are excluded.
5091 *) Allow the verify time to be set by an application,
5092 rather than always using the current time.
5095 *) Phase 2 verify code reorganisation. The certificate
5096 verify code now looks up an issuer certificate by a
5097 number of criteria: subject name, authority key id
5098 and key usage. It also verifies self signed certificates
5099 by the same criteria. The main comparison function is
5100 X509_check_issued() which performs these checks.
5102 Lot of changes were necessary in order to support this
5103 without completely rewriting the lookup code.
5105 Authority and subject key identifier are now cached.
5107 The LHASH 'certs' is X509_STORE has now been replaced
5108 by a STACK_OF(X509_OBJECT). This is mainly because an
5109 LHASH can't store or retrieve multiple objects with
5110 the same hash value.
5112 As a result various functions (which were all internal
5113 use only) have changed to handle the new X509_STORE
5114 structure. This will break anything that messed round
5115 with X509_STORE internally.
5117 The functions X509_STORE_add_cert() now checks for an
5118 exact match, rather than just subject name.
5120 The X509_STORE API doesn't directly support the retrieval
5121 of multiple certificates matching a given criteria, however
5122 this can be worked round by performing a lookup first
5123 (which will fill the cache with candidate certificates)
5124 and then examining the cache for matches. This is probably
5125 the best we can do without throwing out X509_LOOKUP
5126 entirely (maybe later...).
5128 The X509_VERIFY_CTX structure has been enhanced considerably.
5130 All certificate lookup operations now go via a get_issuer()
5131 callback. Although this currently uses an X509_STORE it
5132 can be replaced by custom lookups. This is a simple way
5133 to bypass the X509_STORE hackery necessary to make this
5134 work and makes it possible to use more efficient techniques
5135 in future. A very simple version which uses a simple
5136 STACK for its trusted certificate store is also provided
5137 using X509_STORE_CTX_trusted_stack().
5139 The verify_cb() and verify() callbacks now have equivalents
5140 in the X509_STORE_CTX structure.
5142 X509_STORE_CTX also has a 'flags' field which can be used
5143 to customise the verify behaviour.
5146 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5147 excludes S/MIME capabilities.
5150 *) When a certificate request is read in keep a copy of the
5151 original encoding of the signed data and use it when outputing
5152 again. Signatures then use the original encoding rather than
5153 a decoded, encoded version which may cause problems if the
5154 request is improperly encoded.
5157 *) For consistency with other BIO_puts implementations, call
5158 buffer_write(b, ...) directly in buffer_puts instead of calling
5161 In BIO_puts, increment b->num_write as in BIO_write.
5162 [Peter.Sylvester@EdelWeb.fr]
5164 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5165 BN_zero, we may not return a BIGNUM with an array consisting of
5169 *) Avoid calling abort() from within the library when problems are
5170 detected, except if preprocessor symbols have been defined
5171 (such as REF_CHECK, BN_DEBUG etc.).
5174 *) New openssl application 'rsautl'. This utility can be
5175 used for low level RSA operations. DER public key
5176 BIO/fp routines also added.
5179 *) New Configure entry and patches for compiling on QNX 4.
5180 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5182 *) A demo state-machine implementation was sponsored by
5183 Nuron (http://www.nuron.com/) and is now available in
5184 demos/state_machine.
5187 *) New options added to the 'dgst' utility for signature
5188 generation and verification.
5191 *) Unrecognized PKCS#7 content types are now handled via a
5192 catch all ASN1_TYPE structure. This allows unsupported
5193 types to be stored as a "blob" and an application can
5194 encode and decode it manually.
5197 *) Fix various signed/unsigned issues to make a_strex.c
5199 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5201 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5202 length if passed a buffer. ASN1_INTEGER_to_BN failed
5203 if passed a NULL BN and its argument was negative.
5204 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5206 *) Modification to PKCS#7 encoding routines to output definite
5207 length encoding. Since currently the whole structures are in
5208 memory there's not real point in using indefinite length
5209 constructed encoding. However if OpenSSL is compiled with
5210 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5213 *) Added BIO_vprintf() and BIO_vsnprintf().
5216 *) Added more prefixes to parse for in the the strings written
5217 through a logging bio, to cover all the levels that are available
5218 through syslog. The prefixes are now:
5220 PANIC, EMERG, EMR => LOG_EMERG
5221 ALERT, ALR => LOG_ALERT
5222 CRIT, CRI => LOG_CRIT
5223 ERROR, ERR => LOG_ERR
5224 WARNING, WARN, WAR => LOG_WARNING
5225 NOTICE, NOTE, NOT => LOG_NOTICE
5226 INFO, INF => LOG_INFO
5227 DEBUG, DBG => LOG_DEBUG
5229 and as before, if none of those prefixes are present at the
5230 beginning of the string, LOG_ERR is chosen.
5232 On Win32, the LOG_* levels are mapped according to this:
5234 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5235 LOG_WARNING => EVENTLOG_WARNING_TYPE
5236 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5240 *) Made it possible to reconfigure with just the configuration
5241 argument "reconf" or "reconfigure". The command line arguments
5242 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5243 and are retrieved from there when reconfiguring.
5247 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5249 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5252 *) The obj_dat.pl script was messing up the sorting of object
5253 names. The reason was that it compared the quoted version
5254 of strings as a result "OCSP" > "OCSP Signing" because
5255 " > SPACE. Changed script to store unquoted versions of
5256 names and add quotes on output. It was also omitting some
5257 names from the lookup table if they were given a default
5258 value (that is if SN is missing it is given the same
5259 value as LN and vice versa), these are now added on the
5260 grounds that if an object has a name we should be able to
5261 look it up. Finally added warning output when duplicate
5262 short or long names are found.
5265 *) Changes needed for Tandem NSK.
5266 [Scott Uroff <scott@xypro.com>]
5268 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5269 RSA_padding_check_SSLv23(), special padding was never detected
5270 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5271 version rollback attacks was not effective.
5273 In s23_clnt.c, don't use special rollback-attack detection padding
5274 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5275 client; similarly, in s23_srvr.c, don't do the rollback check if
5276 SSL 2.0 is the only protocol enabled in the server.
5279 *) Make it possible to get hexdumps of unprintable data with 'openssl
5280 asn1parse'. By implication, the functions ASN1_parse_dump() and
5281 BIO_dump_indent() are added.
5284 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5285 these print out strings and name structures based on various
5286 flags including RFC2253 support and proper handling of
5287 multibyte characters. Added options to the 'x509' utility
5288 to allow the various flags to be set.
5291 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5292 Also change the functions X509_cmp_current_time() and
5293 X509_gmtime_adj() work with an ASN1_TIME structure,
5294 this will enable certificates using GeneralizedTime in validity
5295 dates to be checked.
5298 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5299 negative public key encodings) on by default,
5300 NO_NEG_PUBKEY_BUG can be set to disable it.
5303 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5304 content octets. An i2c_ASN1_OBJECT is unnecessary because
5305 the encoding can be trivially obtained from the structure.
5308 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5309 not read locks (CRYPTO_r_[un]lock).
5312 *) A first attempt at creating official support for shared
5313 libraries through configuration. I've kept it so the
5314 default is static libraries only, and the OpenSSL programs
5315 are always statically linked for now, but there are
5316 preparations for dynamic linking in place.
5317 This has been tested on Linux and Tru64.
5320 *) Randomness polling function for Win9x, as described in:
5321 Peter Gutmann, Software Generation of Practically Strong
5325 *) Fix so PRNG is seeded in req if using an already existing
5329 *) New options to smime application. -inform and -outform
5330 allow alternative formats for the S/MIME message including
5331 PEM and DER. The -content option allows the content to be
5332 specified separately. This should allow things like Netscape
5333 form signing output easier to verify.
5336 *) Fix the ASN1 encoding of tags using the 'long form'.
5339 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5340 STRING types. These convert content octets to and from the
5341 underlying type. The actual tag and length octets are
5342 already assumed to have been read in and checked. These
5343 are needed because all other string types have virtually
5344 identical handling apart from the tag. By having versions
5345 of the ASN1 functions that just operate on content octets
5346 IMPLICIT tagging can be handled properly. It also allows
5347 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5348 and ASN1_INTEGER are identical apart from the tag.
5351 *) Change the handling of OID objects as follows:
5353 - New object identifiers are inserted in objects.txt, following
5354 the syntax given in objects.README.
5355 - objects.pl is used to process obj_mac.num and create a new
5357 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5360 This is currently kind of a hack, and the perl code in objects.pl
5361 isn't very elegant, but it works as I intended. The simplest way
5362 to check that it worked correctly is to look in obj_dat.h and
5363 check the array nid_objs and make sure the objects haven't moved
5364 around (this is important!). Additions are OK, as well as
5365 consistent name changes.
5368 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5371 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5372 The given file adds to whatever has already been seeded into the
5373 random pool through the RANDFILE configuration file option or
5374 environment variable, or the default random state file.
5377 *) mkstack.pl now sorts each macro group into lexical order.
5378 Previously the output order depended on the order the files
5379 appeared in the directory, resulting in needless rewriting
5383 *) Patches to make OpenSSL compile under Win32 again. Mostly
5384 work arounds for the VC++ problem that it treats func() as
5385 func(void). Also stripped out the parts of mkdef.pl that
5386 added extra typesafe functions: these no longer exist.
5389 *) Reorganisation of the stack code. The macros are now all
5390 collected in safestack.h . Each macro is defined in terms of
5391 a "stack macro" of the form SKM_<name>(type, a, b). The
5392 DEBUG_SAFESTACK is now handled in terms of function casts,
5393 this has the advantage of retaining type safety without the
5394 use of additional functions. If DEBUG_SAFESTACK is not defined
5395 then the non typesafe macros are used instead. Also modified the
5396 mkstack.pl script to handle the new form. Needs testing to see
5397 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5398 the default if no major problems. Similar behaviour for ASN1_SET_OF
5399 and PKCS12_STACK_OF.
5402 *) When some versions of IIS use the 'NET' form of private key the
5403 key derivation algorithm is different. Normally MD5(password) is
5404 used as a 128 bit RC4 key. In the modified case
5405 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5406 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5407 as the old Netscape_RSA functions except they have an additional
5408 'sgckey' parameter which uses the modified algorithm. Also added
5409 an -sgckey command line option to the rsa utility. Thanks to
5410 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5411 algorithm to openssl-dev.
5414 *) The evp_local.h macros were using 'c.##kname' which resulted in
5415 invalid expansion on some systems (SCO 5.0.5 for example).
5416 Corrected to 'c.kname'.
5417 [Phillip Porch <root@theporch.com>]
5419 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5420 a STACK of email addresses from a certificate or request, these look
5421 in the subject name and the subject alternative name extensions and
5422 omit any duplicate addresses.
5425 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5426 This makes DSA verification about 2 % faster.
5429 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5430 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5431 plus overhead for 1024 bit moduli).
5432 This makes exponentiations about 0.5 % faster for 1024 bit
5433 exponents (as measured by "openssl speed rsa2048").
5436 *) Rename memory handling macros to avoid conflicts with other
5438 Malloc => OPENSSL_malloc
5439 Malloc_locked => OPENSSL_malloc_locked
5440 Realloc => OPENSSL_realloc
5441 Free => OPENSSL_free
5444 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5445 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5448 *) CygWin32 support.
5449 [John Jarvie <jjarvie@newsguy.com>]
5451 *) The type-safe stack code has been rejigged. It is now only compiled
5452 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5453 by default all type-specific stack functions are "#define"d back to
5454 standard stack functions. This results in more streamlined output
5455 but retains the type-safety checking possibilities of the original
5459 *) The STACK code has been cleaned up, and certain type declarations
5460 that didn't make a lot of sense have been brought in line. This has
5461 also involved a cleanup of sorts in safestack.h to more correctly
5462 map type-safe stack functions onto their plain stack counterparts.
5463 This work has also resulted in a variety of "const"ifications of
5464 lots of the code, especially "_cmp" operations which should normally
5465 be prototyped with "const" parameters anyway.
5468 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5469 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5470 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5471 where all of 'md' is used each time the PRNG is used, but 'state'
5472 is used only indexed by a cyclic counter. As entropy may not be
5473 well distributed from the beginning, 'md' is important as a
5474 chaining variable. However, the output function chains only half
5475 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5476 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5477 in all of 'state' being rewritten, with the new values depending
5478 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5481 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5482 the handshake is continued after ssl_verify_cert_chain();
5483 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5484 can lead to 'unexplainable' connection aborts later.
5485 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5487 *) Major EVP API cipher revision.
5488 Add hooks for extra EVP features. This allows various cipher
5489 parameters to be set in the EVP interface. Support added for variable
5490 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5491 setting of RC2 and RC5 parameters.
5493 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5496 Remove lots of duplicated code from the EVP library. For example *every*
5497 cipher init() function handles the 'iv' in the same way according to the
5498 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5499 for CFB and OFB modes they zero ctx->num.
5501 New functionality allows removal of S/MIME code RC2 hack.
5503 Most of the routines have the same form and so can be declared in terms
5506 By shifting this to the top level EVP_CipherInit() it can be removed from
5507 all individual ciphers. If the cipher wants to handle IVs or keys
5508 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5511 Change lots of functions like EVP_EncryptUpdate() to now return a
5512 value: although software versions of the algorithms cannot fail
5513 any installed hardware versions can.
5516 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5517 this option is set, tolerate broken clients that send the negotiated
5518 protocol version number instead of the requested protocol version
5522 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5523 i.e. non-zero for export ciphersuites, zero otherwise.
5524 Previous versions had this flag inverted, inconsistent with
5525 rsa_tmp_cb (..._TMP_RSA_CB).
5526 [Bodo Moeller; problem reported by Amit Chopra]
5528 *) Add missing DSA library text string. Work around for some IIS
5529 key files with invalid SEQUENCE encoding.
5532 *) Add a document (doc/standards.txt) that list all kinds of standards
5533 and so on that are implemented in OpenSSL.
5536 *) Enhance c_rehash script. Old version would mishandle certificates
5537 with the same subject name hash and wouldn't handle CRLs at all.
5538 Added -fingerprint option to crl utility, to support new c_rehash
5542 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5545 *) Fix for SSL server purpose checking. Server checking was
5546 rejecting certificates which had extended key usage present
5547 but no ssl client purpose.
5548 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5550 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5551 is a little unclear about how a blank password is handled.
5552 Since the password in encoded as a BMPString with terminating
5553 double NULL a zero length password would end up as just the
5554 double NULL. However no password at all is different and is
5555 handled differently in the PKCS#12 key generation code. NS
5556 treats a blank password as zero length. MSIE treats it as no
5557 password on export: but it will try both on import. We now do
5558 the same: PKCS12_parse() tries zero length and no password if
5559 the password is set to "" or NULL (NULL is now a valid password:
5560 it wasn't before) as does the pkcs12 application.
5563 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5564 perror when PEM_read_bio_X509_REQ fails, the error message must
5565 be obtained from the error queue.
5568 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5569 it in ERR_remove_state if appropriate, and change ERR_get_state
5570 accordingly to avoid race conditions (this is necessary because
5571 thread_hash is no longer constant once set).
5574 *) Bugfix for linux-elf makefile.one.
5577 *) RSA_get_default_method() will now cause a default
5578 RSA_METHOD to be chosen if one doesn't exist already.
5579 Previously this was only set during a call to RSA_new()
5580 or RSA_new_method(NULL) meaning it was possible for
5581 RSA_get_default_method() to return NULL.
5584 *) Added native name translation to the existing DSO code
5585 that will convert (if the flag to do so is set) filenames
5586 that are sufficiently small and have no path information
5587 into a canonical native form. Eg. "blah" converted to
5588 "libblah.so" or "blah.dll" etc.
5591 *) New function ERR_error_string_n(e, buf, len) which is like
5592 ERR_error_string(e, buf), but writes at most 'len' bytes
5593 including the 0 terminator. For ERR_error_string_n, 'buf'
5595 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5597 *) CONF library reworked to become more general. A new CONF
5598 configuration file reader "class" is implemented as well as a
5599 new functions (NCONF_*, for "New CONF") to handle it. The now
5600 old CONF_* functions are still there, but are reimplemented to
5601 work in terms of the new functions. Also, a set of functions
5602 to handle the internal storage of the configuration data is
5603 provided to make it easier to write new configuration file
5604 reader "classes" (I can definitely see something reading a
5605 configuration file in XML format, for example), called _CONF_*,
5606 or "the configuration storage API"...
5608 The new configuration file reading functions are:
5610 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5611 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5613 NCONF_default, NCONF_WIN32
5615 NCONF_dump_fp, NCONF_dump_bio
5617 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5618 NCONF_new creates a new CONF object. This works in the same way
5619 as other interfaces in OpenSSL, like the BIO interface.
5620 NCONF_dump_* dump the internal storage of the configuration file,
5621 which is useful for debugging. All other functions take the same
5622 arguments as the old CONF_* functions wth the exception of the
5623 first that must be a `CONF *' instead of a `LHASH *'.
5625 To make it easer to use the new classes with the old CONF_* functions,
5626 the function CONF_set_default_method is provided.
5629 *) Add '-tls1' option to 'openssl ciphers', which was already
5630 mentioned in the documentation but had not been implemented.
5631 (This option is not yet really useful because even the additional
5632 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5635 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5636 OpenSSL-based applications) load shared libraries and bind to
5637 them in a portable way.
5638 [Geoff Thorpe, with contributions from Richard Levitte]
5640 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5642 *) Make sure _lrotl and _lrotr are only used with MSVC.
5644 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5645 (the default implementation of RAND_status).
5647 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5648 to '-clrext' (= clear extensions), as intended and documented.
5649 [Bodo Moeller; inconsistency pointed out by Michael Attili
5652 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5653 was larger than the MD block size.
5654 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5656 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5657 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5658 using the passed key: if the passed key was a private key the result
5659 of X509_print(), for example, would be to print out all the private key
5663 *) des_quad_cksum() byte order bug fix.
5664 [Ulf Möller, using the problem description in krb4-0.9.7, where
5665 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5667 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5669 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5671 *) For easily testing in shell scripts whether some command
5672 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5673 returns with exit code 0 iff no command of the given name is available.
5674 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5675 the output goes to stdout and nothing is printed to stderr.
5676 Additional arguments are always ignored.
5678 Since for each cipher there is a command of the same name,
5679 the 'no-cipher' compilation switches can be tested this way.
5681 ('openssl no-XXX' is not able to detect pseudo-commands such
5682 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5685 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5688 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5689 is set; it will be thrown away anyway because each handshake creates
5691 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5692 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5693 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5694 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5697 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5698 'Q' and 'R' lose their special meanings (quit/renegotiate).
5699 This is part of what -quiet does; unlike -quiet, -ign_eof
5700 does not suppress any output.
5703 *) Add compatibility options to the purpose and trust code. The
5704 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5705 accepts a certificate or CA, this was the previous behaviour,
5706 with all the associated security issues.
5708 X509_TRUST_COMPAT is the old trust behaviour: only and
5709 automatically trust self signed roots in certificate store. A
5710 new trust setting X509_TRUST_DEFAULT is used to specify that
5711 a purpose has no associated trust setting and it should instead
5712 use the value in the default purpose.
5715 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5716 and fix a memory leak.
5719 *) In util/mkerr.pl (which implements 'make errors'), preserve
5720 reason strings from the previous version of the .c file, as
5721 the default to have only downcase letters (and digits) in
5722 automatically generated reasons codes is not always appropriate.
5725 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5726 using strerror. Previously, ERR_reason_error_string() returned
5727 library names as reason strings for SYSerr; but SYSerr is a special
5728 case where small numbers are errno values, not library numbers.
5731 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5732 converts DSA parameters into DH parameters. (When creating parameters,
5733 DSA_generate_parameters is used.)
5736 *) Include 'length' (recommended exponent length) in C code generated
5737 by 'openssl dhparam -C'.
5740 *) The second argument to set_label in perlasm was already being used
5741 so couldn't be used as a "file scope" flag. Moved to third argument
5745 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5746 instead of RAND_bytes for encryption IVs and salts.
5749 *) Include RAND_status() into RAND_METHOD instead of implementing
5750 it only for md_rand.c Otherwise replacing the PRNG by calling
5751 RAND_set_rand_method would be impossible.
5754 *) Don't let DSA_generate_key() enter an infinite loop if the random
5755 number generation fails.
5758 *) New 'rand' application for creating pseudo-random output.
5761 *) Added configuration support for Linux/IA64
5762 [Rolf Haberrecker <rolf@suse.de>]
5764 *) Assembler module support for Mingw32.
5767 *) Shared library support for HPUX (in shlib/).
5768 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5770 *) Shared library support for Solaris gcc.
5771 [Lutz Behnke <behnke@trustcenter.de>]
5773 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5775 *) PKCS7_encrypt() was adding text MIME headers twice because they
5776 were added manually and by SMIME_crlf_copy().
5779 *) In bntest.c don't call BN_rand with zero bits argument.
5780 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5782 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5783 case was implemented. This caused BN_div_recp() to fail occasionally.
5786 *) Add an optional second argument to the set_label() in the perl
5787 assembly language builder. If this argument exists and is set
5788 to 1 it signals that the assembler should use a symbol whose
5789 scope is the entire file, not just the current function. This
5790 is needed with MASM which uses the format label:: for this scope.
5791 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5793 *) Change the ASN1 types so they are typedefs by default. Before
5794 almost all types were #define'd to ASN1_STRING which was causing
5795 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5799 *) Change names of new functions to the new get1/get0 naming
5800 convention: After 'get1', the caller owns a reference count
5801 and has to call ..._free; 'get0' returns a pointer to some
5802 data structure without incrementing reference counters.
5803 (Some of the existing 'get' functions increment a reference
5804 counter, some don't.)
5805 Similarly, 'set1' and 'add1' functions increase reference
5806 counters or duplicate objects.
5809 *) Allow for the possibility of temp RSA key generation failure:
5810 the code used to assume it always worked and crashed on failure.
5813 *) Fix potential buffer overrun problem in BIO_printf().
5814 [Ulf Möller, using public domain code by Patrick Powell; problem
5815 pointed out by David Sacerdote <das33@cornell.edu>]
5817 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5818 RAND_egd() and RAND_status(). In the command line application,
5819 the EGD socket can be specified like a seed file using RANDFILE
5823 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5824 Some CAs (e.g. Verisign) distribute certificates in this form.
5827 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5828 list to exclude them. This means that no special compilation option
5829 is needed to use anonymous DH: it just needs to be included in the
5833 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5834 EVP_MD_type. The old functionality is available in a new macro called
5835 EVP_MD_md(). Change code that uses it and update docs.
5838 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5839 where the 'void *' argument is replaced by a function pointer argument.
5840 Previously 'void *' was abused to point to functions, which works on
5841 many platforms, but is not correct. As these functions are usually
5842 called by macros defined in OpenSSL header files, most source code
5843 should work without changes.
5846 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5847 sections with information on -D... compiler switches used for
5848 compiling the library so that applications can see them. To enable
5849 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5850 must be defined. E.g.,
5851 #define OPENSSL_ALGORITHM_DEFINES
5852 #include <openssl/opensslconf.h>
5853 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5854 [Richard Levitte, Ulf and Bodo Möller]
5856 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5860 *) Change the 'other' type in certificate aux info to a STACK_OF
5861 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5862 the required ASN1 format: arbitrary types determined by an OID.
5865 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5866 argument to 'req'. This is not because the function is newer or
5867 better than others it just uses the work 'NEW' in the certificate
5868 request header lines. Some software needs this.
5871 *) Reorganise password command line arguments: now passwords can be
5872 obtained from various sources. Delete the PEM_cb function and make
5873 it the default behaviour: i.e. if the callback is NULL and the
5874 usrdata argument is not NULL interpret it as a null terminated pass
5875 phrase. If usrdata and the callback are NULL then the pass phrase
5876 is prompted for as usual.
5879 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5880 the support is automatically enabled. The resulting binaries will
5881 autodetect the card and use it if present.
5882 [Ben Laurie and Compaq Inc.]
5884 *) Work around for Netscape hang bug. This sends certificate request
5885 and server done in one record. Since this is perfectly legal in the
5886 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5887 the bugs/SSLv3 entry for more info.
5890 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5893 *) Add -rand argument to smime and pkcs12 applications and read/write
5897 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5900 *) Add command line password options to the remaining applications.
5903 *) Bug fix for BN_div_recp() for numerators with an even number of
5907 *) More tests in bntest.c, and changed test_bn output.
5910 *) ./config recognizes MacOS X now.
5913 *) Bug fix for BN_div() when the first words of num and divsor are
5914 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5917 *) Add support for various broken PKCS#8 formats, and command line
5918 options to produce them.
5921 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5922 get temporary BIGNUMs from a BN_CTX.
5925 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5929 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5930 include a #define from the old name to the new. The original intent
5931 was that statically linked binaries could for example just call
5932 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5933 link with digests. This never worked becayse SSLeay_add_all_digests()
5934 and SSLeay_add_all_ciphers() were in the same source file so calling
5935 one would link with the other. They are now in separate source files.
5938 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5941 *) Use a less unusual form of the Miller-Rabin primality test (it used
5942 a binary algorithm for exponentiation integrated into the Miller-Rabin
5943 loop, our standard modexp algorithms are faster).
5946 *) Support for the EBCDIC character set completed.
5947 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5949 *) Source code cleanups: use const where appropriate, eliminate casts,
5950 use void * instead of char * in lhash.
5953 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5954 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5955 this the server could overwrite ephemeral keys that the client
5959 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5960 using 50 iterations of the Rabin-Miller test.
5962 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5963 iterations of the Rabin-Miller test as required by the appendix
5964 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5965 As BN_is_prime_fasttest includes trial division, DSA parameter
5966 generation becomes much faster.
5968 This implies a change for the callback functions in DSA_is_prime
5969 and DSA_generate_parameters: The callback function is called once
5970 for each positive witness in the Rabin-Miller test, not just
5971 occasionally in the inner loop; and the parameters to the
5972 callback function now provide an iteration count for the outer
5973 loop rather than for the current invocation of the inner loop.
5974 DSA_generate_parameters additionally can call the callback
5975 function with an 'iteration count' of -1, meaning that a
5976 candidate has passed the trial division test (when q is generated
5977 from an application-provided seed, trial division is skipped).
5980 *) New function BN_is_prime_fasttest that optionally does trial
5981 division before starting the Rabin-Miller test and has
5982 an additional BN_CTX * argument (whereas BN_is_prime always
5983 has to allocate at least one BN_CTX).
5984 'callback(1, -1, cb_arg)' is called when a number has passed the
5985 trial division stage.
5988 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5992 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5995 *) New function BN_pseudo_rand().
5998 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5999 bignum version of BN_from_montgomery() with the working code from
6000 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6004 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6005 made it impossible to use the same SSL_SESSION data structure in
6006 SSL2 clients in multiple threads.
6009 *) The return value of RAND_load_file() no longer counts bytes obtained
6010 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6011 to seed the PRNG (previously an explicit byte count was required).
6012 [Ulf Möller, Bodo Möller]
6014 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6015 used (char *) instead of (void *) and had casts all over the place.
6018 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6021 *) Retain source code compatibility for BN_prime_checks macro:
6022 BN_is_prime(..., BN_prime_checks, ...) now uses
6023 BN_prime_checks_for_size to determine the appropriate number of
6024 Rabin-Miller iterations.
6027 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6028 DH_CHECK_P_NOT_SAFE_PRIME.
6029 (Check if this is true? OpenPGP calls them "strong".)
6032 *) Merge the functionality of "dh" and "gendh" programs into a new program
6033 "dhparam". The old programs are retained for now but will handle DH keys
6034 (instead of parameters) in future.
6037 *) Make the ciphers, s_server and s_client programs check the return values
6038 when a new cipher list is set.
6041 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6042 ciphers. Before when the 56bit ciphers were enabled the sorting was
6045 The syntax for the cipher sorting has been extended to support sorting by
6046 cipher-strength (using the strength_bits hard coded in the tables).
6047 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6049 Fix a bug in the cipher-command parser: when supplying a cipher command
6050 string with an "undefined" symbol (neither command nor alphanumeric
6051 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6052 an error is flagged.
6054 Due to the strength-sorting extension, the code of the
6055 ssl_create_cipher_list() function was completely rearranged. I hope that
6056 the readability was also increased :-)
6057 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6059 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6060 for the first serial number and places 2 in the serial number file. This
6061 avoids problems when the root CA is created with serial number zero and
6062 the first user certificate has the same issuer name and serial number
6066 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6067 the new code. Add documentation for this stuff.
6070 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6071 X509_*() to X509at_*() on the grounds that they don't handle X509
6072 structures and behave in an analagous way to the X509v3 functions:
6073 they shouldn't be called directly but wrapper functions should be used
6076 So we also now have some wrapper functions that call the X509at functions
6077 when passed certificate requests. (TO DO: similar things can be done with
6078 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6079 things. Some of these need some d2i or i2d and print functionality
6080 because they handle more complex structures.)
6083 *) Add missing #ifndefs that caused missing symbols when building libssl
6084 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6085 NO_RSA in ssl/s2*.c.
6086 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6088 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6089 has a return value which indicates the quality of the random data
6090 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6091 error queue. New function RAND_pseudo_bytes() generates output that is
6092 guaranteed to be unique but not unpredictable. RAND_add is like
6093 RAND_seed, but takes an extra argument for an entropy estimate
6094 (RAND_seed always assumes full entropy).
6097 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6098 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6099 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6100 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6101 false-positive rate of at most 2^-80 for random input.
6104 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6107 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6108 in the 0.9.5 release), this returns the chain
6109 from an X509_CTX structure with a dup of the stack and all
6110 the X509 reference counts upped: so the stack will exist
6111 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6114 Also make SSL_SESSION_print() print out the verify return
6118 *) Add manpage for the pkcs12 command. Also change the default
6119 behaviour so MAC iteration counts are used unless the new
6120 -nomaciter option is used. This improves file security and
6121 only older versions of MSIE (4.0 for example) need it.
6124 *) Honor the no-xxx Configure options when creating .DEF files.
6127 *) Add PKCS#10 attributes to field table: challengePassword,
6128 unstructuredName and unstructuredAddress. These are taken from
6129 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6130 international characters are used.
6132 More changes to X509_ATTRIBUTE code: allow the setting of types
6133 based on strings. Remove the 'loc' parameter when adding
6134 attributes because these will be a SET OF encoding which is sorted
6138 *) Initial changes to the 'req' utility to allow request generation
6139 automation. This will allow an application to just generate a template
6140 file containing all the field values and have req construct the
6143 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6144 used all over the place including certificate requests and PKCS#7
6145 structures. They are currently handled manually where necessary with
6146 some primitive wrappers for PKCS#7. The new functions behave in a
6147 manner analogous to the X509 extension functions: they allow
6148 attributes to be looked up by NID and added.
6150 Later something similar to the X509V3 code would be desirable to
6151 automatically handle the encoding, decoding and printing of the
6152 more complex types. The string types like challengePassword can
6153 be handled by the string table functions.
6155 Also modified the multi byte string table handling. Now there is
6156 a 'global mask' which masks out certain types. The table itself
6157 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6158 is useful when for example there is only one permissible type
6159 (as in countryName) and using the mask might result in no valid
6163 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6164 SSL_get_peer_finished to allow applications to obtain the latest
6165 Finished messages sent to the peer or expected from the peer,
6166 respectively. (SSL_get_peer_finished is usually the Finished message
6167 actually received from the peer, otherwise the protocol will be aborted.)
6169 As the Finished message are message digests of the complete handshake
6170 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6171 be used for external authentication procedures when the authentication
6172 provided by SSL/TLS is not desired or is not enough.
6175 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6176 the host supports BWX extension and if Compaq C is present on the
6177 $PATH. Just exploiting of the BWX extension results in 20-30%
6178 performance kick for some algorithms, e.g. DES and RC4 to mention
6179 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6183 *) Add support for MS "fast SGC". This is arguably a violation of the
6184 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6185 weak crypto and after checking the certificate is SGC a second one
6186 with strong crypto. MS SGC stops the first handshake after receiving
6187 the server certificate message and sends a second client hello. Since
6188 a server will typically do all the time consuming operations before
6189 expecting any further messages from the client (server key exchange
6190 is the most expensive) there is little difference between the two.
6192 To get OpenSSL to support MS SGC we have to permit a second client
6193 hello message after we have sent server done. In addition we have to
6194 reset the MAC if we do get this second client hello.
6197 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6198 if a DER encoded private key is RSA or DSA traditional format. Changed
6199 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6200 format DER encoded private key. Newer code should use PKCS#8 format which
6201 has the key type encoded in the ASN1 structure. Added DER private key
6202 support to pkcs8 application.
6205 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6206 ciphersuites has been selected (as required by the SSL 3/TLS 1
6207 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6208 is set, we interpret this as a request to violate the specification
6209 (the worst that can happen is a handshake failure, and 'correct'
6210 behaviour would result in a handshake failure anyway).
6213 *) In SSL_CTX_add_session, take into account that there might be multiple
6214 SSL_SESSION structures with the same session ID (e.g. when two threads
6215 concurrently obtain them from an external cache).
6216 The internal cache can handle only one SSL_SESSION with a given ID,
6217 so if there's a conflict, we now throw out the old one to achieve
6221 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6222 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6223 some routines that use cipher OIDs: some ciphers do not have OIDs
6224 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6228 *) Simplify the trust setting structure and code. Now we just have
6229 two sequences of OIDs for trusted and rejected settings. These will
6230 typically have values the same as the extended key usage extension
6231 and any application specific purposes.
6233 The trust checking code now has a default behaviour: it will just
6234 check for an object with the same NID as the passed id. Functions can
6235 be provided to override either the default behaviour or the behaviour
6236 for a given id. SSL client, server and email already have functions
6237 in place for compatibility: they check the NID and also return "trusted"
6238 if the certificate is self signed.
6241 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6242 traditional format into an EVP_PKEY structure.
6245 *) Add a password callback function PEM_cb() which either prompts for
6246 a password if usr_data is NULL or otherwise assumes it is a null
6247 terminated password. Allow passwords to be passed on command line
6248 environment or config files in a few more utilities.
6251 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6252 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6253 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6254 Update documentation.
6257 *) Support for ASN1 "NULL" type. This could be handled before by using
6258 ASN1_TYPE but there wasn't any function that would try to read a NULL
6259 and produce an error if it couldn't. For compatibility we also have
6260 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6261 don't allocate anything because they don't need to.
6264 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6266 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6268 *) Rebuild of the memory allocation routines used by OpenSSL code and
6269 possibly others as well. The purpose is to make an interface that
6270 provide hooks so anyone can build a separate set of allocation and
6271 deallocation routines to be used by OpenSSL, for example memory
6272 pool implementations, or something else, which was previously hard
6273 since Malloc(), Realloc() and Free() were defined as macros having
6274 the values malloc, realloc and free, respectively (except for Win32
6275 compilations). The same is provided for memory debugging code.
6276 OpenSSL already comes with functionality to find memory leaks, but
6277 this gives people a chance to debug other memory problems.
6279 With these changes, a new set of functions and macros have appeared:
6281 CRYPTO_set_mem_debug_functions() [F]
6282 CRYPTO_get_mem_debug_functions() [F]
6283 CRYPTO_dbg_set_options() [F]
6284 CRYPTO_dbg_get_options() [F]
6285 CRYPTO_malloc_debug_init() [M]
6287 The memory debug functions are NULL by default, unless the library
6288 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6289 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6290 gives the standard debugging functions that come with OpenSSL) or
6291 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6292 provided by the library user) must be used. When the standard
6293 debugging functions are used, CRYPTO_dbg_set_options can be used to
6294 request additional information:
6295 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6296 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6298 Also, things like CRYPTO_set_mem_functions will always give the
6299 expected result (the new set of functions is used for allocation
6300 and deallocation) at all times, regardless of platform and compiler
6303 To finish it up, some functions that were never use in any other
6304 way than through macros have a new API and new semantic:
6307 CRYPTO_dbg_realloc()
6310 All macros of value have retained their old syntax.
6311 [Richard Levitte and Bodo Moeller]
6313 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6314 ordering of SMIMECapabilities wasn't in "strength order" and there
6315 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6319 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6320 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6321 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6323 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6324 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6325 functionality to handle multipart/signed properly) and a utility
6326 called 'smime' to call all this stuff. This is based on code I
6327 originally wrote for Celo who have kindly allowed it to be
6328 included in OpenSSL.
6331 *) Add variants des_set_key_checked and des_set_key_unchecked of
6332 des_set_key (aka des_key_sched). Global variable des_check_key
6333 decides which of these is called by des_set_key; this way
6334 des_check_key behaves as it always did, but applications and
6335 the library itself, which was buggy for des_check_key == 1,
6336 have a cleaner way to pick the version they need.
6339 *) New function PKCS12_newpass() which changes the password of a
6343 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6344 dynamic mix. In both cases the ids can be used as an index into the
6345 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6346 functions so they accept a list of the field values and the
6347 application doesn't need to directly manipulate the X509_TRUST
6351 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6355 *) Modify the way the V3 extension code looks up extensions. This now
6356 works in a similar way to the object code: we have some "standard"
6357 extensions in a static table which is searched with OBJ_bsearch()
6358 and the application can add dynamic ones if needed. The file
6359 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6360 updated whenever a new extension is added to the core code and kept
6361 in ext_nid order. There is a simple program 'tabtest.c' which checks
6362 this. New extensions are not added too often so this file can readily
6363 be maintained manually.
6365 There are two big advantages in doing things this way. The extensions
6366 can be looked up immediately and no longer need to be "added" using
6367 X509V3_add_standard_extensions(): this function now does nothing.
6368 [Side note: I get *lots* of email saying the extension code doesn't
6369 work because people forget to call this function]
6370 Also no dynamic allocation is done unless new extensions are added:
6371 so if we don't add custom extensions there is no need to call
6372 X509V3_EXT_cleanup().
6375 *) Modify enc utility's salting as follows: make salting the default. Add a
6376 magic header, so unsalted files fail gracefully instead of just decrypting
6377 to garbage. This is because not salting is a big security hole, so people
6378 should be discouraged from doing it.
6381 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6382 digest to be passed on the command line but it only used this
6383 parameter when signing a certificate. Modified so all relevant
6384 operations are affected by the digest parameter including the
6385 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6386 DSA key was used because it didn't fix the digest.
6389 *) Initial certificate chain verify code. Currently tests the untrusted
6390 certificates for consistency with the verify purpose (which is set
6391 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6393 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6394 this is because it will reject chains with invalid extensions whereas
6395 every previous version of OpenSSL and SSLeay made no checks at all.
6397 Trust code: checks the root CA for the relevant trust settings. Trust
6398 settings have an initial value consistent with the verify purpose: e.g.
6399 if the verify purpose is for SSL client use it expects the CA to be
6400 trusted for SSL client use. However the default value can be changed to
6401 permit custom trust settings: one example of this would be to only trust
6402 certificates from a specific "secure" set of CAs.
6404 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6405 which should be used for version portability: especially since the
6406 verify structure is likely to change more often now.
6408 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6409 to set them. If not set then assume SSL clients will verify SSL servers
6412 Two new options to the verify program: -untrusted allows a set of
6413 untrusted certificates to be passed in and -purpose which sets the
6414 intended purpose of the certificate. If a purpose is set then the
6415 new chain verify code is used to check extension consistency.
6418 *) Support for the authority information access extension.
6421 *) Modify RSA and DSA PEM read routines to transparently handle
6422 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6423 public keys in a format compatible with certificate
6424 SubjectPublicKeyInfo structures. Unfortunately there were already
6425 functions called *_PublicKey_* which used various odd formats so
6426 these are retained for compatibility: however the DSA variants were
6427 never in a public release so they have been deleted. Changed dsa/rsa
6428 utilities to handle the new format: note no releases ever handled public
6429 keys so we should be OK.
6431 The primary motivation for this change is to avoid the same fiasco
6432 that dogs private keys: there are several incompatible private key
6433 formats some of which are standard and some OpenSSL specific and
6434 require various evil hacks to allow partial transparent handling and
6435 even then it doesn't work with DER formats. Given the option anything
6436 other than PKCS#8 should be dumped: but the other formats have to
6437 stay in the name of compatibility.
6439 With public keys and the benefit of hindsight one standard format
6440 is used which works with EVP_PKEY, RSA or DSA structures: though
6441 it clearly returns an error if you try to read the wrong kind of key.
6443 Added a -pubkey option to the 'x509' utility to output the public key.
6444 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6445 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6446 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6447 that do the same as the EVP_PKEY_assign_*() except they up the
6448 reference count of the added key (they don't "swallow" the
6452 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6453 CRLs would fail if the file contained no certificates or no CRLs:
6454 added a new function to read in both types and return the number
6455 read: this means that if none are read it will be an error. The
6456 DER versions of the certificate and CRL reader would always fail
6457 because it isn't possible to mix certificates and CRLs in DER format
6458 without choking one or the other routine. Changed this to just read
6459 a certificate: this is the best we can do. Also modified the code
6460 in apps/verify.c to take notice of return codes: it was previously
6461 attempting to read in certificates from NULL pointers and ignoring
6462 any errors: this is one reason why the cert and CRL reader seemed
6463 to work. It doesn't check return codes from the default certificate
6464 routines: these may well fail if the certificates aren't installed.
6467 *) Code to support otherName option in GeneralName.
6470 *) First update to verify code. Change the verify utility
6471 so it warns if it is passed a self signed certificate:
6472 for consistency with the normal behaviour. X509_verify
6473 has been modified to it will now verify a self signed
6474 certificate if *exactly* the same certificate appears
6475 in the store: it was previously impossible to trust a
6476 single self signed certificate. This means that:
6477 openssl verify ss.pem
6478 now gives a warning about a self signed certificate but
6479 openssl verify -CAfile ss.pem ss.pem
6483 *) For servers, store verify_result in SSL_SESSION data structure
6484 (and add it to external session representation).
6485 This is needed when client certificate verifications fails,
6486 but an application-provided verification callback (set by
6487 SSL_CTX_set_cert_verify_callback) allows accepting the session
6488 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6489 but returns 1): When the session is reused, we have to set
6490 ssl->verify_result to the appropriate error code to avoid
6492 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6494 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6495 case in PKCS7_dataInit() where the signed PKCS7 structure
6496 didn't contain any existing data because it was being created.
6497 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6499 *) Add a salt to the key derivation routines in enc.c. This
6500 forms the first 8 bytes of the encrypted file. Also add a
6501 -S option to allow a salt to be input on the command line.
6504 *) New function X509_cmp(). Oddly enough there wasn't a function
6505 to compare two certificates. We do this by working out the SHA1
6506 hash and comparing that. X509_cmp() will be needed by the trust
6510 *) SSL_get1_session() is like SSL_get_session(), but increments
6511 the reference count in the SSL_SESSION returned.
6512 [Geoff Thorpe <geoff@eu.c2.net>]
6514 *) Fix for 'req': it was adding a null to request attributes.
6515 Also change the X509_LOOKUP and X509_INFO code to handle
6516 certificate auxiliary information.
6519 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6523 *) Add the possibility to add extra information to the memory leak
6524 detecting output, to form tracebacks, showing from where each
6525 allocation was originated: CRYPTO_push_info("constant string") adds
6526 the string plus current file name and line number to a per-thread
6527 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6528 is like calling CYRPTO_pop_info() until the stack is empty.
6529 Also updated memory leak detection code to be multi-thread-safe.
6532 *) Add options -text and -noout to pkcs7 utility and delete the
6533 encryption options which never did anything. Update docs.
6536 *) Add options to some of the utilities to allow the pass phrase
6537 to be included on either the command line (not recommended on
6538 OSes like Unix) or read from the environment. Update the
6539 manpages and fix a few bugs.
6542 *) Add a few manpages for some of the openssl commands.
6545 *) Fix the -revoke option in ca. It was freeing up memory twice,
6546 leaking and not finding already revoked certificates.
6549 *) Extensive changes to support certificate auxiliary information.
6550 This involves the use of X509_CERT_AUX structure and X509_AUX
6551 functions. An X509_AUX function such as PEM_read_X509_AUX()
6552 can still read in a certificate file in the usual way but it
6553 will also read in any additional "auxiliary information". By
6554 doing things this way a fair degree of compatibility can be
6555 retained: existing certificates can have this information added
6556 using the new 'x509' options.
6558 Current auxiliary information includes an "alias" and some trust
6559 settings. The trust settings will ultimately be used in enhanced
6560 certificate chain verification routines: currently a certificate
6561 can only be trusted if it is self signed and then it is trusted
6565 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6566 The problem was that one of the replacement routines had not been working
6567 since SSLeay releases. For now the offending routine has been replaced
6568 with non-optimised assembler. Even so, this now gives around 95%
6569 performance improvement for 1024 bit RSA signs.
6572 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6573 handling. Most clients have the effective key size in bits equal to
6574 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6575 A few however don't do this and instead use the size of the decrypted key
6576 to determine the RC2 key length and the AlgorithmIdentifier to determine
6577 the effective key length. In this case the effective key length can still
6578 be 40 bits but the key length can be 168 bits for example. This is fixed
6579 by manually forcing an RC2 key into the EVP_PKEY structure because the
6580 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6581 the key length and effective key length are equal.
6584 *) Add a bunch of functions that should simplify the creation of
6585 X509_NAME structures. Now you should be able to do:
6586 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6587 and have it automatically work out the correct field type and fill in
6588 the structures. The more adventurous can try:
6589 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6590 and it will (hopefully) work out the correct multibyte encoding.
6593 *) Change the 'req' utility to use the new field handling and multibyte
6594 copy routines. Before the DN field creation was handled in an ad hoc
6595 way in req, ca, and x509 which was rather broken and didn't support
6596 BMPStrings or UTF8Strings. Since some software doesn't implement
6597 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6598 using the dirstring_type option. See the new comment in the default
6599 openssl.cnf for more info.
6602 *) Make crypto/rand/md_rand.c more robust:
6603 - Assure unique random numbers after fork().
6604 - Make sure that concurrent threads access the global counter and
6605 md serializably so that we never lose entropy in them
6606 or use exactly the same state in multiple threads.
6607 Access to the large state is not always serializable because
6608 the additional locking could be a performance killer, and
6609 md should be large enough anyway.
6612 *) New file apps/app_rand.c with commonly needed functionality
6613 for handling the random seed file.
6615 Use the random seed file in some applications that previously did not:
6617 dsaparam -genkey (which also ignored its '-rand' option),
6620 x509 (when signing).
6621 Except on systems with /dev/urandom, it is crucial to have a random
6622 seed file at least for key creation, DSA signing, and for DH exchanges;
6623 for RSA signatures we could do without one.
6625 gendh and gendsa (unlike genrsa) used to read only the first byte
6626 of each file listed in the '-rand' option. The function as previously
6627 found in genrsa is now in app_rand.c and is used by all programs
6628 that support '-rand'.
6631 *) In RAND_write_file, use mode 0600 for creating files;
6632 don't just chmod when it may be too late.
6635 *) Report an error from X509_STORE_load_locations
6636 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6639 *) New function ASN1_mbstring_copy() this copies a string in either
6640 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6641 into an ASN1_STRING type. A mask of permissible types is passed
6642 and it chooses the "minimal" type to use or an error if not type
6646 *) Add function equivalents to the various macros in asn1.h. The old
6647 macros are retained with an M_ prefix. Code inside the library can
6648 use the M_ macros. External code (including the openssl utility)
6649 should *NOT* in order to be "shared library friendly".
6652 *) Add various functions that can check a certificate's extensions
6653 to see if it usable for various purposes such as SSL client,
6654 server or S/MIME and CAs of these types. This is currently
6655 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6656 verification. Also added a -purpose flag to x509 utility to
6657 print out all the purposes.
6660 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6664 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6665 for, obtain and decode and extension and obtain its critical flag.
6666 This allows all the necessary extension code to be handled in a
6667 single function call.
6670 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6671 platforms. See crypto/rc4/rc4_enc.c for further details.
6674 *) New -noout option to asn1parse. This causes no output to be produced
6675 its main use is when combined with -strparse and -out to extract data
6676 from a file (which may not be in ASN.1 format).
6679 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6680 when producing the local key id.
6681 [Richard Levitte <levitte@stacken.kth.se>]
6683 *) New option -dhparam in s_server. This allows a DH parameter file to be
6684 stated explicitly. If it is not stated then it tries the first server
6685 certificate file. The previous behaviour hard coded the filename
6689 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6690 a public key to be input or output. For example:
6691 openssl rsa -in key.pem -pubout -out pubkey.pem
6692 Also added necessary DSA public key functions to handle this.
6695 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6696 in the message. This was handled by allowing
6697 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6698 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6700 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6701 to the end of the strings whereas this didn't. This would cause problems
6702 if strings read with d2i_ASN1_bytes() were later modified.
6703 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6705 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6706 data and it contains EOF it will end up returning an error. This is
6707 caused by input 46 bytes long. The cause is due to the way base64
6708 BIOs find the start of base64 encoded data. They do this by trying a
6709 trial decode on each line until they find one that works. When they
6710 do a flag is set and it starts again knowing it can pass all the
6711 data directly through the decoder. Unfortunately it doesn't reset
6712 the context it uses. This means that if EOF is reached an attempt
6713 is made to pass two EOFs through the context and this causes the
6714 resulting error. This can also cause other problems as well. As is
6715 usual with these problems it takes *ages* to find and the fix is
6716 trivial: move one line.
6717 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6719 *) Ugly workaround to get s_client and s_server working under Windows. The
6720 old code wouldn't work because it needed to select() on sockets and the
6721 tty (for keypresses and to see if data could be written). Win32 only
6722 supports select() on sockets so we select() with a 1s timeout on the
6723 sockets and then see if any characters are waiting to be read, if none
6724 are present then we retry, we also assume we can always write data to
6725 the tty. This isn't nice because the code then blocks until we've
6726 received a complete line of data and it is effectively polling the
6727 keyboard at 1s intervals: however it's quite a bit better than not
6728 working at all :-) A dedicated Windows application might handle this
6729 with an event loop for example.
6732 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6733 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6734 will be called when RSA_sign() and RSA_verify() are used. This is useful
6735 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6736 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6737 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6738 This necessitated the support of an extra signature type NID_md5_sha1
6739 for SSL signatures and modifications to the SSL library to use it instead
6740 of calling RSA_public_decrypt() and RSA_private_encrypt().
6743 *) Add new -verify -CAfile and -CApath options to the crl program, these
6744 will lookup a CRL issuers certificate and verify the signature in a
6745 similar way to the verify program. Tidy up the crl program so it
6746 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6747 less strict. It will now permit CRL extensions even if it is not
6748 a V2 CRL: this will allow it to tolerate some broken CRLs.
6751 *) Initialize all non-automatic variables each time one of the openssl
6752 sub-programs is started (this is necessary as they may be started
6753 multiple times from the "OpenSSL>" prompt).
6754 [Lennart Bang, Bodo Moeller]
6756 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6757 removing all other RSA functionality (this is what NO_RSA does). This
6758 is so (for example) those in the US can disable those operations covered
6759 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6763 *) Non-copying interface to BIO pairs.
6764 (still largely untested)
6767 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6768 ASCII string. This was handled independently in various places before.
6771 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6772 UTF8 strings a character at a time.
6775 *) Use client_version from client hello to select the protocol
6776 (s23_srvr.c) and for RSA client key exchange verification
6777 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6780 *) Add various utility functions to handle SPKACs, these were previously
6781 handled by poking round in the structure internals. Added new function
6782 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6783 print, verify and generate SPKACs. Based on an original idea from
6784 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6787 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6790 *) Allow the config file extension section to be overwritten on the
6791 command line. Based on an original idea from Massimiliano Pala
6792 <madwolf@comune.modena.it>. The new option is called -extensions
6793 and can be applied to ca, req and x509. Also -reqexts to override
6794 the request extensions in req and -crlexts to override the crl extensions
6798 *) Add new feature to the SPKAC handling in ca. Now you can include
6799 the same field multiple times by preceding it by "XXXX." for example:
6802 this is the same syntax as used in the req config file.
6805 *) Allow certificate extensions to be added to certificate requests. These
6806 are specified in a 'req_extensions' option of the req section of the
6807 config file. They can be printed out with the -text option to req but
6808 are otherwise ignored at present.
6811 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6812 data read consists of only the final block it would not decrypted because
6813 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6814 A misplaced 'break' also meant the decrypted final block might not be
6815 copied until the next read.
6818 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6819 a few extra parameters to the DH structure: these will be useful if
6820 for example we want the value of 'q' or implement X9.42 DH.
6823 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6824 provides hooks that allow the default DSA functions or functions on a
6825 "per key" basis to be replaced. This allows hardware acceleration and
6826 hardware key storage to be handled without major modification to the
6827 library. Also added low level modexp hooks and CRYPTO_EX structure and
6828 associated functions.
6831 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6832 as "read only": it can't be written to and the buffer it points to will
6833 not be freed. Reading from a read only BIO is much more efficient than
6834 a normal memory BIO. This was added because there are several times when
6835 an area of memory needs to be read from a BIO. The previous method was
6836 to create a memory BIO and write the data to it, this results in two
6837 copies of the data and an O(n^2) reading algorithm. There is a new
6838 function BIO_new_mem_buf() which creates a read only memory BIO from
6839 an area of memory. Also modified the PKCS#7 routines to use read only
6843 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6844 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6845 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6846 but a retry condition occured while trying to read the rest.
6849 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6850 NID_pkcs7_encrypted by default: this was wrong since this should almost
6851 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6852 the encrypted data type: this is a more sensible place to put it and it
6853 allows the PKCS#12 code to be tidied up that duplicated this
6857 *) Changed obj_dat.pl script so it takes its input and output files on
6858 the command line. This should avoid shell escape redirection problems
6862 *) Initial support for certificate extension requests, these are included
6863 in things like Xenroll certificate requests. Included functions to allow
6864 extensions to be obtained and added.
6867 *) -crlf option to s_client and s_server for sending newlines as
6868 CRLF (as required by many protocols).
6871 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6873 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6874 [Ralf S. Engelschall]
6876 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6877 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6879 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6883 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6884 DH parameters/keys (q is lost during that conversion, but the resulting
6885 DH parameters contain its length).
6887 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6888 much faster than DH_generate_parameters (which creates parameters
6889 where p = 2*q + 1), and also the smaller q makes DH computations
6890 much more efficient (160-bit exponentiation instead of 1024-bit
6891 exponentiation); so this provides a convenient way to support DHE
6892 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6893 utter importance to use
6894 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6896 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6897 when such DH parameters are used, because otherwise small subgroup
6898 attacks may become possible!
6901 *) Avoid memory leak in i2d_DHparams.
6904 *) Allow the -k option to be used more than once in the enc program:
6905 this allows the same encrypted message to be read by multiple recipients.
6908 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6909 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6910 it will always use the numerical form of the OID, even if it has a short
6914 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6915 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6916 otherwise bn_mod_exp was called. In the case of hardware keys for example
6917 no private key components need be present and it might store extra data
6918 in the RSA structure, which cannot be accessed from bn_mod_exp.
6919 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6920 private key operations.
6923 *) Added support for SPARC Linux.
6926 *) pem_password_cb function type incompatibly changed from
6927 typedef int pem_password_cb(char *buf, int size, int rwflag);
6929 ....(char *buf, int size, int rwflag, void *userdata);
6930 so that applications can pass data to their callbacks:
6931 The PEM[_ASN1]_{read,write}... functions and macros now take an
6932 additional void * argument, which is just handed through whenever
6933 the password callback is called.
6934 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6936 New function SSL_CTX_set_default_passwd_cb_userdata.
6938 Compatibility note: As many C implementations push function arguments
6939 onto the stack in reverse order, the new library version is likely to
6940 interoperate with programs that have been compiled with the old
6941 pem_password_cb definition (PEM_whatever takes some data that
6942 happens to be on the stack as its last argument, and the callback
6943 just ignores this garbage); but there is no guarantee whatsoever that
6946 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6947 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6948 problems not only on Windows, but also on some Unix platforms.
6949 To avoid problematic command lines, these definitions are now in an
6950 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6951 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6954 *) MIPS III/IV assembler module is reimplemented.
6957 *) More DES library cleanups: remove references to srand/rand and
6958 delete an unused file.
6961 *) Add support for the the free Netwide assembler (NASM) under Win32,
6962 since not many people have MASM (ml) and it can be hard to obtain.
6963 This is currently experimental but it seems to work OK and pass all
6964 the tests. Check out INSTALL.W32 for info.
6967 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6968 without temporary keys kept an extra copy of the server key,
6969 and connections with temporary keys did not free everything in case
6973 *) New function RSA_check_key and new openssl rsa option -check
6974 for verifying the consistency of RSA keys.
6975 [Ulf Moeller, Bodo Moeller]
6977 *) Various changes to make Win32 compile work:
6978 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6979 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6980 comparison" warnings.
6981 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6984 *) Add a debugging option to PKCS#5 v2 key generation function: when
6985 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6986 derived keys are printed to stderr.
6989 *) Copy the flags in ASN1_STRING_dup().
6990 [Roman E. Pavlov <pre@mo.msk.ru>]
6992 *) The x509 application mishandled signing requests containing DSA
6993 keys when the signing key was also DSA and the parameters didn't match.
6995 It was supposed to omit the parameters when they matched the signing key:
6996 the verifying software was then supposed to automatically use the CA's
6997 parameters if they were absent from the end user certificate.
6999 Omitting parameters is no longer recommended. The test was also
7000 the wrong way round! This was probably due to unusual behaviour in
7001 EVP_cmp_parameters() which returns 1 if the parameters match.
7002 This meant that parameters were omitted when they *didn't* match and
7003 the certificate was useless. Certificates signed with 'ca' didn't have
7005 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7007 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7008 The interface is as follows:
7009 Applications can use
7010 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7011 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7012 "off" is now the default.
7013 The library internally uses
7014 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7015 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7016 to disable memory-checking temporarily.
7018 Some inconsistent states that previously were possible (and were
7019 even the default) are now avoided.
7021 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7022 with each memory chunk allocated; this is occasionally more helpful
7023 than just having a counter.
7025 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7027 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7031 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7032 which largely parallels "options", but is for changing API behaviour,
7033 whereas "options" are about protocol behaviour.
7034 Initial "mode" flags are:
7036 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7037 a single record has been written.
7038 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7039 retries use the same buffer location.
7040 (But all of the contents must be
7044 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7047 *) Fix problems with no-hmac etc.
7048 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7050 *) New functions RSA_get_default_method(), RSA_set_method() and
7051 RSA_get_method(). These allows replacement of RSA_METHODs without having
7052 to mess around with the internals of an RSA structure.
7055 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7056 Also really enable memory leak checks in openssl.c and in some
7058 [Chad C. Mulligan, Bodo Moeller]
7060 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7061 up the length of negative integers. This has now been simplified to just
7062 store the length when it is first determined and use it later, rather
7063 than trying to keep track of where data is copied and updating it to
7065 [Steve Henson, reported by Brien Wheeler
7066 <bwheeler@authentica-security.com>]
7068 *) Add a new function PKCS7_signatureVerify. This allows the verification
7069 of a PKCS#7 signature but with the signing certificate passed to the
7070 function itself. This contrasts with PKCS7_dataVerify which assumes the
7071 certificate is present in the PKCS#7 structure. This isn't always the
7072 case: certificates can be omitted from a PKCS#7 structure and be
7073 distributed by "out of band" means (such as a certificate database).
7076 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7077 function prototypes in pem.h, also change util/mkdef.pl to add the
7078 necessary function names.
7081 *) mk1mf.pl (used by Windows builds) did not properly read the
7082 options set by Configure in the top level Makefile, and Configure
7083 was not even able to write more than one option correctly.
7084 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7087 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7088 file to be loaded from a BIO or FILE pointer. The BIO version will
7089 for example allow memory BIOs to contain config info.
7092 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7093 Whoever hopes to achieve shared-library compatibility across versions
7094 must use this, not the compile-time macro.
7095 (Exercise 0.9.4: Which is the minimum library version required by
7097 Note: All this applies only to multi-threaded programs, others don't
7101 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7102 through a BIO pair triggered the default case, i.e.
7103 SSLerr(...,SSL_R_UNKNOWN_STATE).
7106 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7107 can use the SSL library even if none of the specific BIOs is
7111 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7112 for the encoded length.
7113 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7115 *) Add initial documentation of the X509V3 functions.
7118 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7119 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7120 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7121 secure PKCS#8 private key format with a high iteration count.
7124 *) Fix determination of Perl interpreter: A perl or perl5
7125 _directory_ in $PATH was also accepted as the interpreter.
7126 [Ralf S. Engelschall]
7128 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7129 wrong with it but it was very old and did things like calling
7130 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7134 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7135 to use the new extension code.
7138 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7139 with macros. This should make it easier to change their form, add extra
7140 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7144 *) Add to configuration table a new entry that can specify an alternative
7145 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7146 according to Mark Crispin <MRC@Panda.COM>.
7150 *) DES CBC did not update the IV. Weird.
7153 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7154 Changing the behaviour of the former might break existing programs --
7155 where IV updating is needed, des_ncbc_encrypt can be used.
7158 *) When bntest is run from "make test" it drives bc to check its
7159 calculations, as well as internally checking them. If an internal check
7160 fails, it needs to cause bc to give a non-zero result or make test carries
7161 on without noticing the failure. Fixed.
7164 *) DES library cleanups.
7167 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7168 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7169 ciphers. NOTE: although the key derivation function has been verified
7170 against some published test vectors it has not been extensively tested
7171 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7175 *) Instead of "mkdir -p", which is not fully portable, use new
7176 Perl script "util/mkdir-p.pl".
7179 *) Rewrite the way password based encryption (PBE) is handled. It used to
7180 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7181 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7182 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7183 the 'parameter' field of the AlgorithmIdentifier is passed to the
7184 underlying key generation function so it must do its own ASN1 parsing.
7185 This has also changed the EVP_PBE_CipherInit() function which now has a
7186 'parameter' argument instead of literal salt and iteration count values
7187 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7190 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7191 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7192 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7193 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7194 value was just used as a "magic string" and not used directly its
7195 value doesn't matter.
7198 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7202 *) "linux-sparc64" configuration (ultrapenguin).
7203 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7204 "linux-sparc" configuration.
7205 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7207 *) config now generates no-xxx options for missing ciphers.
7210 *) Support the EBCDIC character set (work in progress).
7211 File ebcdic.c not yet included because it has a different license.
7212 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7214 *) Support BS2000/OSD-POSIX.
7215 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7217 *) Make callbacks for key generation use void * instead of char *.
7220 *) Make S/MIME samples compile (not yet tested).
7223 *) Additional typesafe stacks.
7226 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7230 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7232 *) New configuration variant "sco5-gcc".
7234 *) Updated some demos.
7235 [Sean O Riordain, Wade Scholine]
7237 *) Add missing BIO_free at exit of pkcs12 application.
7240 *) Fix memory leak in conf.c.
7243 *) Updates for Win32 to assembler version of MD5.
7246 *) Set #! path to perl in apps/der_chop to where we found it
7247 instead of using a fixed path.
7250 *) SHA library changes for irix64-mips4-cc.
7253 *) Improvements for VMS support.
7257 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7259 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7260 This also avoids the problems with SC4.2 and unpatched SC5.
7261 [Andy Polyakov <appro@fy.chalmers.se>]
7263 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7264 These are required because of the typesafe stack would otherwise break
7265 existing code. If old code used a structure member which used to be STACK
7266 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7267 sk_num or sk_value it would produce an error because the num, data members
7268 are not present in STACK_OF. Now it just produces a warning. sk_set
7269 replaces the old method of assigning a value to sk_value
7270 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7271 that does this will no longer work (and should use sk_set instead) but
7272 this could be regarded as a "questionable" behaviour anyway.
7275 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7276 correctly handle encrypted S/MIME data.
7279 *) Change type of various DES function arguments from des_cblock
7280 (which means, in function argument declarations, pointer to char)
7281 to des_cblock * (meaning pointer to array with 8 char elements),
7282 which allows the compiler to do more typechecking; it was like
7283 that back in SSLeay, but with lots of ugly casts.
7285 Introduce new type const_des_cblock.
7288 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7289 problems: find RecipientInfo structure that matches recipient certificate
7290 and initialise the ASN1 structures properly based on passed cipher.
7293 *) Belatedly make the BN tests actually check the results.
7296 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7297 to and from BNs: it was completely broken. New compilation option
7298 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7299 key elements as negative integers.
7302 *) Reorganize and speed up MD5.
7303 [Andy Polyakov <appro@fy.chalmers.se>]
7306 [Richard Levitte <richard@levitte.org>]
7308 *) New option -out to asn1parse to allow the parsed structure to be
7309 output to a file. This is most useful when combined with the -strparse
7310 option to examine the output of things like OCTET STRINGS.
7313 *) Make SSL library a little more fool-proof by not requiring any longer
7314 that SSL_set_{accept,connect}_state be called before
7315 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7316 in many applications because usually everything *appeared* to work as
7317 intended anyway -- now it really works as intended).
7320 *) Move openssl.cnf out of lib/.
7323 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7324 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7325 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7326 [Ralf S. Engelschall]
7328 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7329 handle PKCS#7 enveloped data properly.
7330 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7332 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7333 copying pointers. The cert_st handling is changed by this in
7334 various ways (and thus what used to be known as ctx->default_cert
7335 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7336 any longer when s->cert does not give us what we need).
7337 ssl_cert_instantiate becomes obsolete by this change.
7338 As soon as we've got the new code right (possibly it already is?),
7339 we have solved a couple of bugs of the earlier code where s->cert
7340 was used as if it could not have been shared with other SSL structures.
7342 Note that using the SSL API in certain dirty ways now will result
7343 in different behaviour than observed with earlier library versions:
7344 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7345 does not influence s as it used to.
7347 In order to clean up things more thoroughly, inside SSL_SESSION
7348 we don't use CERT any longer, but a new structure SESS_CERT
7349 that holds per-session data (if available); currently, this is
7350 the peer's certificate chain and, for clients, the server's certificate
7351 and temporary key. CERT holds only those values that can have
7352 meaningful defaults in an SSL_CTX.
7355 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7356 from the internal representation. Various PKCS#7 fixes: remove some
7357 evil casts and set the enc_dig_alg field properly based on the signing
7361 *) Allow PKCS#12 password to be set from the command line or the
7362 environment. Let 'ca' get its config file name from the environment
7363 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7367 *) Allow certificate policies extension to use an IA5STRING for the
7368 organization field. This is contrary to the PKIX definition but
7369 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7373 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7374 without disallowing inline assembler and the like for non-pedantic builds.
7377 *) Support Borland C++ builder.
7378 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7383 *) SHA-1 cleanups and performance enhancements.
7384 [Andy Polyakov <appro@fy.chalmers.se>]
7386 *) Sparc v8plus assembler for the bignum library.
7387 [Andy Polyakov <appro@fy.chalmers.se>]
7389 *) Accept any -xxx and +xxx compiler options in Configure.
7392 *) Update HPUX configuration.
7395 *) Add missing sk_<type>_unshift() function to safestack.h
7396 [Ralf S. Engelschall]
7398 *) New function SSL_CTX_use_certificate_chain_file that sets the
7399 "extra_cert"s in addition to the certificate. (This makes sense
7400 only for "PEM" format files, as chains as a whole are not
7404 *) Support verify_depth from the SSL API.
7405 x509_vfy.c had what can be considered an off-by-one-error:
7406 Its depth (which was not part of the external interface)
7407 was actually counting the number of certificates in a chain;
7408 now it really counts the depth.
7411 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7412 instead of X509err, which often resulted in confusing error
7413 messages since the error codes are not globally unique
7414 (e.g. an alleged error in ssl3_accept when a certificate
7415 didn't match the private key).
7417 *) New function SSL_CTX_set_session_id_context that allows to set a default
7418 value (so that you don't need SSL_set_session_id_context for each
7419 connection using the SSL_CTX).
7422 *) OAEP decoding bug fix.
7425 *) Support INSTALL_PREFIX for package builders, as proposed by
7429 *) New Configure options "threads" and "no-threads". For systems
7430 where the proper compiler options are known (currently Solaris
7431 and Linux), "threads" is the default.
7434 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7437 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7438 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7439 such as /usr/local/bin.
7442 *) "make linux-shared" to build shared libraries.
7443 [Niels Poppe <niels@netbox.org>]
7445 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7448 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7449 extension adding in x509 utility.
7452 *) Remove NOPROTO sections and error code comments.
7455 *) Partial rewrite of the DEF file generator to now parse the ANSI
7459 *) New Configure options --prefix=DIR and --openssldir=DIR.
7462 *) Complete rewrite of the error code script(s). It is all now handled
7463 by one script at the top level which handles error code gathering,
7464 header rewriting and C source file generation. It should be much better
7465 than the old method: it now uses a modified version of Ulf's parser to
7466 read the ANSI prototypes in all header files (thus the old K&R definitions
7467 aren't needed for error creation any more) and do a better job of
7468 translating function codes into names. The old 'ASN1 error code imbedded
7469 in a comment' is no longer necessary and it doesn't use .err files which
7470 have now been deleted. Also the error code call doesn't have to appear all
7471 on one line (which resulted in some large lines...).
7474 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7477 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7478 0 (which usually indicates a closed connection), but continue reading.
7481 *) Fix some race conditions.
7484 *) Add support for CRL distribution points extension. Add Certificate
7485 Policies and CRL distribution points documentation.
7488 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7491 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7492 8 of keying material. Merlin has also confirmed interop with this fix
7493 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7494 [Merlin Hughes <merlin@baltimore.ie>]
7496 *) Fix lots of warnings.
7497 [Richard Levitte <levitte@stacken.kth.se>]
7499 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7500 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7501 [Richard Levitte <levitte@stacken.kth.se>]
7503 *) Fix problems with sizeof(long) == 8.
7504 [Andy Polyakov <appro@fy.chalmers.se>]
7506 *) Change functions to ANSI C.
7509 *) Fix typos in error codes.
7510 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7512 *) Remove defunct assembler files from Configure.
7515 *) SPARC v8 assembler BIGNUM implementation.
7516 [Andy Polyakov <appro@fy.chalmers.se>]
7518 *) Support for Certificate Policies extension: both print and set.
7519 Various additions to support the r2i method this uses.
7522 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7523 return a const string when you are expecting an allocated buffer.
7526 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7527 types DirectoryString and DisplayText.
7530 *) Add code to allow r2i extensions to access the configuration database,
7531 add an LHASH database driver and add several ctx helper functions.
7534 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7535 fail when they extended the size of a BIGNUM.
7538 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7539 support typesafe stack.
7542 *) Fix typo in SSL_[gs]et_options().
7543 [Nils Frostberg <nils@medcom.se>]
7545 *) Delete various functions and files that belonged to the (now obsolete)
7546 old X509V3 handling code.
7549 *) New Configure option "rsaref".
7552 *) Don't auto-generate pem.h.
7555 *) Introduce type-safe ASN.1 SETs.
7558 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7559 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7561 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7562 that links with OpenSSL (well at least cause lots of warnings), but fear
7563 not: the conversion is trivial, and it eliminates loads of evil casts. A
7564 few STACKed things have been converted already. Feel free to convert more.
7565 In the fullness of time, I'll do away with the STACK type altogether.
7568 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7569 specified in <certfile> by updating the entry in the index.txt file.
7570 This way one no longer has to edit the index.txt file manually for
7571 revoking a certificate. The -revoke option does the gory details now.
7572 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7574 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7575 `-text' option at all and this way the `-noout -text' combination was
7576 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7577 [Ralf S. Engelschall]
7579 *) Make sure a corresponding plain text error message exists for the
7580 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7581 verify callback function determined that a certificate was revoked.
7582 [Ralf S. Engelschall]
7584 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7585 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7586 all available cipers including rc5, which was forgotten until now.
7587 In order to let the testing shell script know which algorithms
7588 are available, a new (up to now undocumented) command
7589 "openssl list-cipher-commands" is used.
7592 *) Bugfix: s_client occasionally would sleep in select() when
7593 it should have checked SSL_pending() first.
7596 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7597 the raw DSA values prior to ASN.1 encoding.
7600 *) Tweaks to Configure
7601 [Niels Poppe <niels@netbox.org>]
7603 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7607 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7610 *) New config option to avoid instructions that are illegal on the 80386.
7611 The default code is faster, but requires at least a 486.
7614 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7615 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7616 same as SSL2_VERSION anyway.
7619 *) New "-showcerts" option for s_client.
7622 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7623 application. Various cleanups and fixes.
7626 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7627 modify error routines to work internally. Add error codes and PBE init
7628 to library startup routines.
7631 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7632 packing functions to asn1 and evp. Changed function names and error
7633 codes along the way.
7636 *) PKCS12 integration: and so it begins... First of several patches to
7637 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7638 objects to objects.h
7641 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7642 and display support for Thawte strong extranet extension.
7645 *) Add LinuxPPC support.
7646 [Jeff Dubrule <igor@pobox.org>]
7648 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7649 bn_div_words in alpha.s.
7650 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7652 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7653 OAEP isn't supported when OpenSSL is built with RSAref.
7654 [Ulf Moeller <ulf@fitug.de>]
7656 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7657 so they no longer are missing under -DNOPROTO.
7658 [Soren S. Jorvang <soren@t.dk>]
7661 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7663 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7664 doesn't work when the session is reused. Coming soon!
7667 *) Fix a security hole, that allows sessions to be reused in the wrong
7668 context thus bypassing client cert protection! All software that uses
7669 client certs and session caches in multiple contexts NEEDS PATCHING to
7670 allow session reuse! A fuller solution is in the works.
7671 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7673 *) Some more source tree cleanups (removed obsolete files
7674 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7675 permission on "config" script to be executable) and a fix for the INSTALL
7677 [Ulf Moeller <ulf@fitug.de>]
7679 *) Remove some legacy and erroneous uses of malloc, free instead of
7681 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7683 *) Make rsa_oaep_test return non-zero on error.
7684 [Ulf Moeller <ulf@fitug.de>]
7686 *) Add support for native Solaris shared libraries. Configure
7687 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7688 if someone would make that last step automatic.
7689 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7691 *) ctx_size was not built with the right compiler during "make links". Fixed.
7694 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7695 except NULL ciphers". This means the default cipher list will no longer
7696 enable NULL ciphers. They need to be specifically enabled e.g. with
7697 the string "DEFAULT:eNULL".
7700 *) Fix to RSA private encryption routines: if p < q then it would
7701 occasionally produce an invalid result. This will only happen with
7702 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7705 *) Be less restrictive and allow also `perl util/perlpath.pl
7706 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7707 because this way one can also use an interpreter named `perl5' (which is
7708 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7709 installed as `perl').
7710 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7712 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7713 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7715 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7716 advapi32.lib to Win32 build and change the pem test comparision
7717 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7718 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7719 and crypto/des/ede_cbcm_enc.c.
7722 *) DES quad checksum was broken on big-endian architectures. Fixed.
7725 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7726 Win32 test batch file so it (might) work again. The Win32 test batch file
7727 is horrible: I feel ill....
7730 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7731 in e_os.h. Audit of header files to check ANSI and non ANSI
7732 sections: 10 functions were absent from non ANSI section and not exported
7733 from Windows DLLs. Fixed up libeay.num for new functions.
7736 *) Make `openssl version' output lines consistent.
7737 [Ralf S. Engelschall]
7739 *) Fix Win32 symbol export lists for BIO functions: Added
7740 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7741 to ms/libeay{16,32}.def.
7742 [Ralf S. Engelschall]
7744 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7745 fine under Unix and passes some trivial tests I've now added. But the
7746 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7747 added to make sure no one expects that this stuff really works in the
7748 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7749 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7751 [Ralf S. Engelschall]
7753 *) Fix the generation of two part addresses in perl.
7754 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7756 *) Add config entry for Linux on MIPS.
7757 [John Tobey <jtobey@channel1.com>]
7759 *) Make links whenever Configure is run, unless we are on Windoze.
7762 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7763 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7767 *) Add a useful kludge to allow package maintainers to specify compiler and
7768 other platforms details on the command line without having to patch the
7769 Configure script everytime: One now can use ``perl Configure
7770 <id>:<details>'', i.e. platform ids are allowed to have details appended
7771 to them (seperated by colons). This is treated as there would be a static
7772 pre-configured entry in Configure's %table under key <id> with value
7773 <details> and ``perl Configure <id>'' is called. So, when you want to
7774 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7775 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7776 now, which overrides the FreeBSD-elf entry on-the-fly.
7777 [Ralf S. Engelschall]
7779 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7782 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7783 on the `perl Configure ...' command line. This way one can compile
7784 OpenSSL libraries with Position Independent Code (PIC) which is needed
7785 for linking it into DSOs.
7786 [Ralf S. Engelschall]
7788 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7792 *) Cleaned up the LICENSE document: The official contact for any license
7793 questions now is the OpenSSL core team under openssl-core@openssl.org.
7794 And add a paragraph about the dual-license situation to make sure people
7795 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7796 to the OpenSSL toolkit.
7797 [Ralf S. Engelschall]
7799 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7800 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7801 Additonally cleaned up the `make links' target: Remove unnecessary
7802 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7803 to speed processing and no longer clutter the display with confusing
7804 stuff. Instead only the actually done links are displayed.
7805 [Ralf S. Engelschall]
7807 *) Permit null encryption ciphersuites, used for authentication only. It used
7808 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7809 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7813 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7814 signed attributes when verifying signatures (this would break them),
7815 the detached data encoding was wrong and public keys obtained using
7816 X509_get_pubkey() weren't freed.
7819 *) Add text documentation for the BUFFER functions. Also added a work around
7820 to a Win95 console bug. This was triggered by the password read stuff: the
7821 last character typed gets carried over to the next fread(). If you were
7822 generating a new cert request using 'req' for example then the last
7823 character of the passphrase would be CR which would then enter the first
7827 *) Added the new `Includes OpenSSL Cryptography Software' button as
7828 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7829 button and can be used by applications based on OpenSSL to show the
7830 relationship to the OpenSSL project.
7831 [Ralf S. Engelschall]
7833 *) Remove confusing variables in function signatures in files
7834 ssl/ssl_lib.c and ssl/ssl.h.
7835 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7837 *) Don't install bss_file.c under PREFIX/include/
7838 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7840 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7841 functions that return function pointers and has support for NT specific
7842 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7843 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7844 unsigned to signed types: this was killing the Win32 compile.
7847 *) Add new certificate file to stack functions,
7848 SSL_add_dir_cert_subjects_to_stack() and
7849 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7850 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7851 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7852 This means that Apache-SSL and similar packages don't have to mess around
7853 to add as many CAs as they want to the preferred list.
7856 *) Experiment with doxygen documentation. Currently only partially applied to
7858 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7859 openssl.doxy as the configuration file.
7862 *) Get rid of remaining C++-style comments which strict C compilers hate.
7863 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7865 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7866 compiled in by default: it has problems with large keys.
7869 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7870 DH private keys and/or callback functions which directly correspond to
7871 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7872 is needed for applications which have to configure certificates on a
7873 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7875 For the RSA certificate situation is makes no difference, but
7876 for the DSA certificate situation this fixes the "no shared cipher"
7877 problem where the OpenSSL cipher selection procedure failed because the
7878 temporary keys were not overtaken from the context and the API provided
7879 no way to reconfigure them.
7880 The new functions now let applications reconfigure the stuff and they
7881 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7882 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7883 non-public-API function ssl_cert_instantiate() is used as a helper
7884 function and also to reduce code redundancy inside ssl_rsa.c.
7885 [Ralf S. Engelschall]
7887 *) Move s_server -dcert and -dkey options out of the undocumented feature
7888 area because they are useful for the DSA situation and should be
7889 recognized by the users.
7890 [Ralf S. Engelschall]
7892 *) Fix the cipher decision scheme for export ciphers: the export bits are
7893 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7894 SSL_EXP_MASK. So, the original variable has to be used instead of the
7895 already masked variable.
7896 [Richard Levitte <levitte@stacken.kth.se>]
7898 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7899 [Richard Levitte <levitte@stacken.kth.se>]
7901 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7902 from `int' to `unsigned int' because it's a length and initialized by
7903 EVP_DigestFinal() which expects an `unsigned int *'.
7904 [Richard Levitte <levitte@stacken.kth.se>]
7906 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7907 script. Instead use the usual Shell->Perl transition trick.
7908 [Ralf S. Engelschall]
7910 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7911 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7912 -noout -modulus' as it's already the case for `openssl rsa -noout
7913 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7914 currently the public key is printed (a decision which was already done by
7915 `openssl dsa -modulus' in the past) which serves a similar purpose.
7916 Additionally the NO_RSA no longer completely removes the whole -modulus
7917 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7919 [Ralf S. Engelschall]
7921 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7922 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7923 [Arne Ansper <arne@ats.cyber.ee>]
7925 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7926 to be added. Now both 'req' and 'ca' can use new objects defined in the
7930 *) Add cool BIO that does syslog (or event log on NT).
7931 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7933 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7934 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7935 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7936 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7939 *) Add preliminary config info for new extension code.
7942 *) Make RSA_NO_PADDING really use no padding.
7943 [Ulf Moeller <ulf@fitug.de>]
7945 *) Generate errors when private/public key check is done.
7948 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7949 for some CRL extensions and new objects added.
7952 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7953 key usage extension and fuller support for authority key id.
7956 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7957 padding method for RSA, which is recommended for new applications in PKCS
7958 #1 v2.0 (RFC 2437, October 1998).
7959 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7960 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7961 against Bleichbacher's attack on RSA.
7962 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7965 *) Updates to the new SSL compression code
7966 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7968 *) Fix so that the version number in the master secret, when passed
7969 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7970 (because the server will not accept higher), that the version number
7971 is 0x03,0x01, not 0x03,0x00
7972 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7974 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7975 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7976 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7979 *) Support for RAW extensions where an arbitrary extension can be
7980 created by including its DER encoding. See apps/openssl.cnf for
7984 *) Make sure latest Perl versions don't interpret some generated C array
7985 code as Perl array code in the crypto/err/err_genc.pl script.
7986 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7988 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7989 not many people have the assembler. Various Win32 compilation fixes and
7990 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7994 *) Modify configure script 'Configure' to automatically create crypto/date.h
7995 file under Win32 and also build pem.h from pem.org. New script
7996 util/mkfiles.pl to create the MINFO file on environments that can't do a
7997 'make files': perl util/mkfiles.pl >MINFO should work.
8000 *) Major rework of DES function declarations, in the pursuit of correctness
8001 and purity. As a result, many evil casts evaporated, and some weirdness,
8002 too. You may find this causes warnings in your code. Zapping your evil
8003 casts will probably fix them. Mostly.
8006 *) Fix for a typo in asn1.h. Bug fix to object creation script
8007 obj_dat.pl. It considered a zero in an object definition to mean
8008 "end of object": none of the objects in objects.h have any zeros
8009 so it wasn't spotted.
8010 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8012 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8013 Masking (CBCM). In the absence of test vectors, the best I have been able
8014 to do is check that the decrypt undoes the encrypt, so far. Send me test
8015 vectors if you have them.
8018 *) Correct calculation of key length for export ciphers (too much space was
8019 allocated for null ciphers). This has not been tested!
8022 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8023 message is now correct (it understands "crypto" and "ssl" on its
8024 command line). There is also now an "update" option. This will update
8025 the util/ssleay.num and util/libeay.num files with any new functions.
8027 perl util/mkdef.pl crypto ssl update
8028 it will update them.
8031 *) Overhauled the Perl interface (perl/*):
8032 - ported BN stuff to OpenSSL's different BN library
8033 - made the perl/ source tree CVS-aware
8034 - renamed the package from SSLeay to OpenSSL (the files still contain
8035 their history because I've copied them in the repository)
8036 - removed obsolete files (the test scripts will be replaced
8037 by better Test::Harness variants in the future)
8038 [Ralf S. Engelschall]
8040 *) First cut for a very conservative source tree cleanup:
8041 1. merge various obsolete readme texts into doc/ssleay.txt
8042 where we collect the old documents and readme texts.
8043 2. remove the first part of files where I'm already sure that we no
8044 longer need them because of three reasons: either they are just temporary
8045 files which were left by Eric or they are preserved original files where
8046 I've verified that the diff is also available in the CVS via "cvs diff
8047 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8048 the crypto/md/ stuff).
8049 [Ralf S. Engelschall]
8051 *) More extension code. Incomplete support for subject and issuer alt
8052 name, issuer and authority key id. Change the i2v function parameters
8053 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8054 what that's for :-) Fix to ASN1 macro which messed up
8055 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8058 *) Preliminary support for ENUMERATED type. This is largely copied from the
8062 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8063 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8065 *) Make sure `make rehash' target really finds the `openssl' program.
8066 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8068 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8069 like to hear about it if this slows down other processors.
8072 *) Add CygWin32 platform information to Configure script.
8073 [Alan Batie <batie@aahz.jf.intel.com>]
8075 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8076 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8078 *) New program nseq to manipulate netscape certificate sequences
8081 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8085 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8086 but the BN code had some problems that would cause failures when
8087 doing certificate verification and some other functions.
8088 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8090 *) Add ASN1 and PEM code to support netscape certificate sequences.
8093 *) Add ASN1 and PEM code to support netscape certificate sequences.
8096 *) Add several PKIX and private extended key usage OIDs.
8099 *) Modify the 'ca' program to handle the new extension code. Modify
8100 openssl.cnf for new extension format, add comments.
8103 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8104 and add a sample to openssl.cnf so req -x509 now adds appropriate
8108 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8109 error code, add initial support to X509_print() and x509 application.
8112 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8113 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8114 stuff is currently isolated and isn't even compiled yet.
8117 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8118 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8119 Removed the versions check from X509 routines when loading extensions:
8120 this allows certain broken certificates that don't set the version
8121 properly to be processed.
8124 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8125 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8126 can still be regenerated with "make depend".
8129 *) Spelling mistake in C version of CAST-128.
8130 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8132 *) Changes to the error generation code. The perl script err-code.pl
8133 now reads in the old error codes and retains the old numbers, only
8134 adding new ones if necessary. It also only changes the .err files if new
8135 codes are added. The makefiles have been modified to only insert errors
8136 when needed (to avoid needlessly modifying header files). This is done
8137 by only inserting errors if the .err file is newer than the auto generated
8138 C file. To rebuild all the error codes from scratch (the old behaviour)
8139 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8140 or delete all the .err files.
8143 *) CAST-128 was incorrectly implemented for short keys. The C version has
8144 been fixed, but is untested. The assembler versions are also fixed, but
8145 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8146 to regenerate it if needed.
8147 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8148 Hagino <itojun@kame.net>]
8150 *) File was opened incorrectly in randfile.c.
8151 [Ulf Möller <ulf@fitug.de>]
8153 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8154 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8155 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8156 al: it's just almost always a UTCTime. Note this patch adds new error
8157 codes so do a "make errors" if there are problems.
8160 *) Correct Linux 1 recognition in config.
8161 [Ulf Möller <ulf@fitug.de>]
8163 *) Remove pointless MD5 hash when using DSA keys in ca.
8164 [Anonymous <nobody@replay.com>]
8166 *) Generate an error if given an empty string as a cert directory. Also
8167 generate an error if handed NULL (previously returned 0 to indicate an
8168 error, but didn't set one).
8169 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8171 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8174 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8175 parameters. This was causing a warning which killed off the Win32 compile.
8178 *) Remove C++ style comments from crypto/bn/bn_local.h.
8179 [Neil Costigan <neil.costigan@celocom.com>]
8181 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8182 based on a text string, looking up short and long names and finally
8183 "dot" format. The "dot" format stuff didn't work. Added new function
8184 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8185 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8186 OID is not part of the table.
8189 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8190 X509_LOOKUP_by_alias().
8193 *) Sort openssl functions by name.
8196 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8197 encryption from sample DSA keys (in case anyone is interested the password
8201 *) Make _all_ *_free functions accept a NULL pointer.
8202 [Frans Heymans <fheymans@isaserver.be>]
8204 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8206 [Anonymous <nobody@replay.com>]
8208 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8209 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8211 *) Don't blow it for numeric -newkey arguments to apps/req.
8212 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8214 *) Temp key "for export" tests were wrong in s3_srvr.c.
8215 [Anonymous <nobody@replay.com>]
8217 *) Add prototype for temp key callback functions
8218 SSL_CTX_set_tmp_{rsa,dh}_callback().
8221 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8222 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8225 *) X509_name_add_entry() freed the wrong thing after an error.
8226 [Arne Ansper <arne@ats.cyber.ee>]
8228 *) rsa_eay.c would attempt to free a NULL context.
8229 [Arne Ansper <arne@ats.cyber.ee>]
8231 *) BIO_s_socket() had a broken should_retry() on Windoze.
8232 [Arne Ansper <arne@ats.cyber.ee>]
8234 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8235 [Arne Ansper <arne@ats.cyber.ee>]
8237 *) Make sure the already existing X509_STORE->depth variable is initialized
8238 in X509_STORE_new(), but document the fact that this variable is still
8239 unused in the certificate verification process.
8240 [Ralf S. Engelschall]
8242 *) Fix the various library and apps files to free up pkeys obtained from
8243 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8246 *) Fix reference counting in X509_PUBKEY_get(). This makes
8247 demos/maurice/example2.c work, amongst others, probably.
8248 [Steve Henson and Ben Laurie]
8250 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8251 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8252 are no longer created. This way we have a single and consistent command
8253 line interface `openssl <command>', similar to `cvs <command>'.
8254 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8256 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8257 BIT STRING wrapper always have zero unused bits.
8260 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8263 *) Make the top-level INSTALL documentation easier to understand.
8266 *) Makefiles updated to exit if an error occurs in a sub-directory
8267 make (including if user presses ^C) [Paul Sutton]
8269 *) Make Montgomery context stuff explicit in RSA data structure.
8272 *) Fix build order of pem and err to allow for generated pem.h.
8275 *) Fix renumbering bug in X509_NAME_delete_entry().
8278 *) Enhanced the err-ins.pl script so it makes the error library number
8279 global and can add a library name. This is needed for external ASN1 and
8280 other error libraries.
8283 *) Fixed sk_insert which never worked properly.
8286 *) Fix ASN1 macros so they can handle indefinite length construted
8287 EXPLICIT tags. Some non standard certificates use these: they can now
8291 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8292 into a single doc/ssleay.txt bundle. This way the information is still
8293 preserved but no longer messes up this directory. Now it's new room for
8294 the new set of documenation files.
8295 [Ralf S. Engelschall]
8297 *) SETs were incorrectly DER encoded. This was a major pain, because they
8298 shared code with SEQUENCEs, which aren't coded the same. This means that
8299 almost everything to do with SETs or SEQUENCEs has either changed name or
8300 number of arguments.
8301 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8303 *) Fix test data to work with the above.
8306 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8307 was already fixed by Eric for 0.9.1 it seems.
8308 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8310 *) Autodetect FreeBSD3.
8313 *) Fix various bugs in Configure. This affects the following platforms:
8317 unixware-2.0-pentium
8321 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8322 before they are needed.
8325 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8329 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8331 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8332 changed SSLeay to OpenSSL in version strings.
8333 [Ralf S. Engelschall]
8335 *) Some fixups to the top-level documents.
8338 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8339 because the symlink to include/ was missing.
8340 [Ralf S. Engelschall]
8342 *) Incorporated the popular no-RSA/DSA-only patches
8343 which allow to compile a RSA-free SSLeay.
8344 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8346 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8347 when "ssleay" is still not found.
8348 [Ralf S. Engelschall]
8350 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8351 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8353 *) Updated the README file.
8354 [Ralf S. Engelschall]
8356 *) Added various .cvsignore files in the CVS repository subdirs
8357 to make a "cvs update" really silent.
8358 [Ralf S. Engelschall]
8360 *) Recompiled the error-definition header files and added
8361 missing symbols to the Win32 linker tables.
8362 [Ralf S. Engelschall]
8364 *) Cleaned up the top-level documents;
8365 o new files: CHANGES and LICENSE
8366 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8367 o merged COPYRIGHT into LICENSE
8368 o removed obsolete TODO file
8369 o renamed MICROSOFT to INSTALL.W32
8370 [Ralf S. Engelschall]
8372 *) Removed dummy files from the 0.9.1b source tree:
8373 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8374 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8375 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8376 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8377 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8378 [Ralf S. Engelschall]
8380 *) Added various platform portability fixes.
8383 *) The Genesis of the OpenSSL rpject:
8384 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8385 Young and Tim J. Hudson created while they were working for C2Net until
8387 [The OpenSSL Project]
8390 Changes between 0.9.0b and 0.9.1b [not released]
8392 *) Updated a few CA certificates under certs/
8395 *) Changed some BIGNUM api stuff.
8398 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8399 DGUX x86, Linux Alpha, etc.
8402 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8403 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8407 *) Add -strparse option to asn1pars program which parses nested
8409 [Dr Stephen Henson <shenson@bigfoot.com>]
8411 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8414 *) DSA fix for "ca" program.
8417 *) Added "-genkey" option to "dsaparam" program.
8420 *) Added RIPE MD160 (rmd160) message digest.
8423 *) Added -a (all) option to "ssleay version" command.
8426 *) Added PLATFORM define which is the id given to Configure.
8429 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8432 *) Extended the ASN.1 parser routines.
8435 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8438 *) Added a BN_CTX to the BN library.
8441 *) Fixed the weak key values in DES library
8444 *) Changed API in EVP library for cipher aliases.
8447 *) Added support for RC2/64bit cipher.
8450 *) Converted the lhash library to the crypto/mem.c functions.
8453 *) Added more recognized ASN.1 object ids.
8456 *) Added more RSA padding checks for SSL/TLS.
8459 *) Added BIO proxy/filter functionality.
8462 *) Added extra_certs to SSL_CTX which can be used
8463 send extra CA certificates to the client in the CA cert chain sending
8464 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8467 *) Now Fortezza is denied in the authentication phase because
8468 this is key exchange mechanism is not supported by SSLeay at all.
8471 *) Additional PKCS1 checks.
8474 *) Support the string "TLSv1" for all TLS v1 ciphers.
8477 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8478 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8481 *) Fixed a few memory leaks.
8484 *) Fixed various code and comment typos.
8487 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8488 bytes sent in the client random.
8489 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob